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Author SHA1 Message Date
Maycon Santos
6f610dca89 Filter routes to sync from same HA group (#618)
An additional check and filter for routes that are part
 of the same HA group where the peer is a routing peer
2022-12-08 15:15:50 +01:00
Maycon Santos
eec24fc730 Use latest tag for dashboard (#617)
Using the latest tag will align with the
dashboard's new release cycle that relies on tags
2022-12-08 15:15:17 +01:00
Krzysztof Nazarewski
1204bbd54a HA Network Routes: prevent routing directly-accessible networks through VPN interface (#612)
Prevent routing peer to add routes from the same HA group as client routes
2022-12-08 13:19:55 +01:00
Maycon Santos
0be46c083d Generate validation certificate from mandatory JWK fields (#614)
When there is no X5c we will use N and E fields of 
a JWK to generate the public RSA and a Pem certificate
2022-12-07 22:06:43 +01:00
Maycon Santos
0fbfec4ce4 Remove wiretrustee conflict checks (#615) 2022-12-07 18:53:48 +01:00
Maycon Santos
d43f0200a6 Handle peer deletion and state update (#611)
If peer is deleted in the console,
we set its state as needs login

On Down command we clean any previous state errors
this prevents need for daemon restart

Removed state error wrapping when engine exits, log is enough
2022-12-06 15:37:30 +01:00
Maycon Santos
a387e3cfc2 Add network routes distribution groups (#606)
Updated tests, API, and account manager methods

Sync routes to peers in the distribution groups

Added store upgrade by adding the All group to routes that don't have them
2022-12-06 10:11:57 +01:00
Misha Bragin
d1b7c23b19 Add SetupKey usage limit (#605)
Add a usage_limit parameter to the API.
This limits the number of times a setup key
can be used. 
usage_limit == 0 indicates the the usage is inlimited.
2022-12-05 13:09:59 +01:00
Maycon Santos
d2d5d4b4b9 Update go version (#603)
Removed ioctl code and remove exception from lint action
2022-12-04 13:22:21 +01:00
Maycon Santos
d029136d3d Add security policy file (#600) 2022-12-02 13:54:22 +01:00
Maycon Santos
a6d2f673ad Add contribution guide (#595)
* Add contribution guide

* update code of conduct contact email

* add PR template
2022-12-02 13:31:31 +01:00
Maycon Santos
0cf0dc048b Update issue templates (#597) 2022-12-02 13:31:15 +01:00
Rui Lopes
5ade879e31 Remove the leading space from the Signal status value (#594) 2022-12-01 11:48:13 +01:00
Maycon Santos
a814715ef8 Add resolvconf configurator for linux (#592) 2022-11-29 14:51:18 +01:00
Maycon Santos
4a30b66503 Check if system is our manager when resolvconf (#590)
Sometimes resolvconf will manage the /etc/resolv.conf file
And systemd-resolved still the DNS manager
2022-11-29 13:37:50 +01:00
Maycon Santos
ae500b63a7 User custom loopback address (#589)
We will probe a set of addresses and port
to define the one available for our DNS service

if none is available, we return an error
2022-11-29 11:49:18 +01:00
Maycon Santos
20a73e3e14 Sync peers FQDN (#584)
Use stdout and stderr log path only if on Linux and attempt to create the path

Update status system with FQDN fields and 
status command to display the domain names of remote and local peers

Set some DNS logs to tracing

update readme file
2022-11-26 13:29:50 +01:00
Misha Bragin
fcf7786a85 Disable route when removing peer (#582) 2022-11-25 18:11:07 +01:00
Maycon Santos
a78fd69f80 Feature/dns client configuration (#563)
Added host configurators for Linux, Windows, and macOS.

The host configurator will update the peer system configuration
 directing DNS queries according to its capabilities.

Some Linux distributions don't support split (match) DNS or custom ports,
 and that will be reported to our management system in another PR
2022-11-23 13:39:42 +01:00
Genteure
4bd5029e7b Enable IPv6 address discovery (#578)
Agents will use IPv6 when available for ICE negotiation
2022-11-23 11:03:29 +01:00
Tom Kunicki
f604956246 External NAT IP mapping support (#487)
* External NAT IP mapping support

* Ignore blacklisted interfaces, even if in user specified in  mapping
2022-11-23 08:42:12 +01:00
Misha Bragin
53c532bbb4 Fix interactive SSO login when creating account from a device (#575) 2022-11-22 12:37:36 +01:00
Misha Bragin
8b0a1bbae0 Display peers of a user that it has access to (#571)
If a user has a non-admin role, display all peers
that user's peers have access to when calling
/peers endpoint of the HTTP API.
2022-11-21 17:45:14 +01:00
Misha Bragin
e965d6c022 Fix CISPA note 2022-11-21 17:36:07 +01:00
Misha Bragin
11f8249eed Add CISPA note (#572) 2022-11-21 16:38:41 +01:00
Maycon Santos
d63a9ce4a7 Return peer's FQDN via API (#567)
Added a temp method to retrieve the dns domain
2022-11-21 11:14:42 +01:00
Maycon Santos
9cb66bdb5d Update last run time and active count (#568)
* Update last run time and active count

We will collect the active peer min and max versions

* Get UI client usage
2022-11-18 16:35:13 +01:00
Genteure
c8ace8bbbe Fix docker network interface filter (#564)
docker network address are assigned on network interfaces that start with "br-"
2022-11-15 22:07:58 +01:00
Misha Bragin
509d23c7cf Replace gRPC errors in business logic with internal ones (#558) 2022-11-11 20:36:45 +01:00
Misha Bragin
1db4027bea Remove docs typo 2022-11-10 10:48:00 +01:00
Misha Bragin
d4dbc322be Add ref to ICE in Readme 2022-11-10 10:46:40 +01:00
Misha Bragin
e19d5dca7f Refactor AddPeer to ensure consistency (#557) 2022-11-08 16:14:36 +01:00
Maycon Santos
157137e4ad Use a single way to generate network map (#550) 2022-11-08 11:38:40 +01:00
Maycon Santos
7d7e576775 Set report caller when info or higher (#555) 2022-11-08 10:56:13 +01:00
Misha Bragin
f37b43a542 Save Peer Status separately in the FileStore (#554)
Due to peer reconnects when restarting the Management service,
there are lots of SaveStore operations to update peer status.

Store.SavePeerStatus stores peer status separately and the
FileStore implementation stores it in memory.
2022-11-08 10:46:12 +01:00
Maycon Santos
7e262572a4 Move dns label generation to store (#552) 2022-11-08 10:31:34 +01:00
Misha Bragin
a768a0aa8a Always lock the store when getting an account (#551) 2022-11-07 19:09:22 +01:00
Misha Bragin
ed7ac81027 Introduce locking on the account level (#548) 2022-11-07 17:52:23 +01:00
Maycon Santos
1f845f466c Add account copy test (#549) 2022-11-07 17:37:28 +01:00
Maycon Santos
270f0e4ce8 Feature/dns protocol (#543)
Added DNS update protocol message

Added sync to clients

Update nameserver API with new fields

Added default NS groups

Added new dns-name flag for the management service append to peer DNS label
2022-11-07 15:38:21 +01:00
Misha Bragin
d0c6d88971 Simplified Store Interface (#545)
This PR simplifies Store and FileStore
by keeping just the Get and Save account methods.

The AccountManager operates mostly around
a single account, so it makes sense to fetch
the whole account object from the store.
2022-11-07 12:10:56 +01:00
Misha Bragin
4321b71984 Hide content based on user role (#541) 2022-11-05 10:24:50 +01:00
Maycon Santos
e8d82c1bd3 Feature/dns-server (#537)
Adding DNS server for client

Updated the API with new fields

Added custom zone object for peer's DNS resolution
2022-11-03 18:39:37 +01:00
Misha Bragin
6aa7a2c5e1 Hide setup key from non-admin users (#539) 2022-11-03 17:02:31 +01:00
Rui Lopes
2e0bf61e9a correctly set the windows application icon on windows (#535)
the icon format is not really supported, so this uses a png instead.

this closes https://github.com/netbirdio/netbird/issues/534.
2022-11-01 00:34:30 +01:00
Maycon Santos
126af9dffc Return gateway address if not nil (#533)
If the gateway address would be nil which is
the case on macOS, we return the preferredSrc

added tests for getExistingRIBRouteGateway function

update log message
2022-10-31 11:54:34 +01:00
Maycon Santos
4cdf2df660 Update sign pipeline version to 0.0.4 (#531)
This version has a fix for the
macOS UI client architecture
2022-10-31 11:03:42 +01:00
Maycon Santos
9a4c9aa286 Add active peers count per OS (#526)
* Add active peers count per OS

* increase iface tests timeout
2022-10-26 14:48:40 +02:00
Rui Lopes
5ed61700ff Set the application icon, settings window title and systray tooltip (#523) 2022-10-26 14:34:30 +02:00
Misha Bragin
84117a9fb7 Update WireGuard trademark note 2022-10-23 11:47:42 +02:00
Misha Bragin
92b612eba4 Update demo video link 2022-10-22 16:55:49 +02:00
Misha Bragin
aeeaa21eed Update README.md (#524) 2022-10-22 16:19:16 +02:00
Misha Bragin
d228cd0cb1 Remove release note 2022-10-22 15:10:09 +02:00
Misha Bragin
b41f36fccd Add gRPC metrics (#522) 2022-10-22 15:06:54 +02:00
Misha Bragin
d2cde4a040 Add IdP metrics (#521) 2022-10-22 13:29:39 +02:00
Misha Bragin
84879a356b Extract app metrics to a separate struct (#520) 2022-10-22 11:50:21 +02:00
Misha Bragin
ed2214f9a9 Add HTTP request/response totals to metrics (#519) 2022-10-22 10:07:13 +02:00
braginini
4388dcc20b Listen metrics on all interfaces 2022-10-21 16:50:06 +02:00
Misha Bragin
4f1f0df7d2 Add Open-telemetry support (#517)
This PR brings open-telemetry metrics to the
Management service.
The Management service exposes new HTTP endpoint
/metrics on 8081 port by default.
The port can be changed by specifying
--metrics-port PORT flag when starting the service.
2022-10-21 16:24:13 +02:00
Misha Bragin
08ddf04c5f Fix IdP tests (#516) 2022-10-19 18:36:10 +02:00
Misha Bragin
b5ee2174a8 Do not set wt_pending_invite when unnecessary (#515)
wt_pending_invite property is set for every user on IdP.
Avoid setting it when unnecessary.
2022-10-19 17:51:41 +02:00
Misha Bragin
7218a3d563 Management single account mode (#511) 2022-10-19 17:43:28 +02:00
Maycon Santos
04e4407ea7 Add anonymous usage metrics collection (#508)
This will help us understand usage on self-hosted deployments

The collection may be disabled by using the flag --disable-anonymous-metrics or 
NETBIRD_DISABLE_ANONYMOUS_METRICS in setup.env
2022-10-16 13:33:46 +02:00
Misha Bragin
06055af361 Super user invites (#483)
This PR brings user invites logic to the Management service
via HTTP API. 
The POST /users/ API endpoint creates a new user in the Idp
and then in the local storage. 
Once the invited user signs ups, the account invitation is redeemed.
There are a few limitations.
This works only with an enabled IdP manager.
Users that already have a registered account can't be invited.
2022-10-13 18:26:31 +02:00
Maycon Santos
abd1230a69 Disable uninstall message when upgrade is silent (#505)
Fix a problem with $INSTDIR pointing to subfolder
2022-10-13 15:00:39 +02:00
Maycon Santos
f7de12daf8 Support custom redirect URIs (#499) 2022-10-12 12:25:46 +02:00
Maycon Santos
c49fb0c40c Get windows version from registry (#502)
Avoid problems with localization by retrieving
version information from registry

Return a default 0.0.0.0 if operation fails
2022-10-12 12:25:33 +02:00
Maycon Santos
6e9a162877 Seticon only when status changes (#504)
* Seticon only when status changes

This prevents a memory leak with the systray lib
when setting the icon every 2 seconds causes a large memory consumption

see https://github.com/getlantern/systray/issues/135

* Use fork with permanent fix
2022-10-12 12:25:06 +02:00
Maycon Santos
b4e03f4616 Feature/add nameservers API endpoint (#491)
Add nameservers endpoint and Open API definition

updated open api generator cli
2022-10-10 11:06:54 +02:00
Misha Bragin
369a7ef345 Add SSO MFA demo gif (#489) 2022-10-10 11:06:25 +02:00
Maycon Santos
c88e6a7342 Run tests only on branch main and on pull requests (#492)
* Use reusable workflow and control push and pr test exec

* use format

* use path ref

* Run tests on push to main and on PRs
2022-10-03 00:17:16 +05:00
Maycon Santos
2cd9b11e7d Add DNS nameserver support to management (#484)
Add DNS package and Nameserver group objects

Add CRUD operations for Nameserver Groups to account manager

Add Routes and Nameservers to Account Copy method

Run docker tests with timeout and serial flags
2022-09-30 16:47:11 +05:00
Maycon Santos
93d20e370b Add incoming routing rules (#486)
add an income firewall rule for each routing pair
the pair for the income rule has inverted
source and destination
2022-09-30 14:39:15 +05:00
Maycon Santos
878ca6db22 Check if domain from claim is valid (#485)
If domain is invalid we call GetAccountByUserOrAccountId
2022-09-29 13:51:18 +05:00
braginini
2033650908 Remove IdP client secret validation 2022-09-26 18:58:14 +02:00
Misha Bragin
34c1c7d901 Add hostname, userID, ui version to the HTTP API peer response (#479) 2022-09-26 18:02:45 +02:00
Misha Bragin
051fd3a4d7 Fix Management and Signal gRPC client stream leak (#482) 2022-09-26 18:02:20 +02:00
Misha Bragin
af69a48745 Support user role update (#478) 2022-09-23 14:18:42 +02:00
Maycon Santos
68ff97ba84 Parse and received provider proper error message (#476) 2022-09-23 14:18:29 +02:00
Misha Bragin
c5705803a5 Output plain NetBird IPv4 in status command (#474) 2022-09-22 09:25:52 +02:00
braginini
7e1ae448e0 Add extra logging to Sync and Login requests 2022-09-22 09:25:31 +02:00
Misha Bragin
518a2561a2 Add auto-assign groups to the User API (#467) 2022-09-22 09:06:32 +02:00
Maycon Santos
c75ffd0f4b Update ICE library (#471) 2022-09-20 11:40:18 +02:00
Maycon Santos
e4ad6174ca Improve module load (#470)
* Add additional check for needed kernel modules

* Check if wireguard and tun modules are loaded

If modules are loaded return true, otherwise attempt to load them

* fix state check

* Add module function tests

* Add test execution in container

* run client package tests on docker

* add package comment to new file

* force entrypoint

* add --privileged flag

* clean only if tables where created

* run from within the directories
2022-09-15 01:26:11 +05:00
Misha Bragin
6de313070a Always return empty auto_groups if previously were nil (#468) 2022-09-13 17:19:03 +02:00
Misha Bragin
cd7d1a80c9 Assign groups to peers when registering with the setup key (#466) 2022-09-13 13:39:46 +02:00
Misha Bragin
be7d829858 Add SetupKey auto-groups property (#460) 2022-09-11 23:16:40 +02:00
Maycon Santos
ed1872560f Use the client network for log errors (#455) 2022-09-07 18:26:59 +02:00
Maycon Santos
de898899a4 update slack invite tittle 2022-09-05 18:44:04 +02:00
Maycon Santos
b63ec71aed Check if login stream was canceled before printing warn (#451) 2022-09-05 17:44:26 +02:00
Maycon Santos
1012172f04 Add routing peer support (#441)
Handle routes updates from management

Manage routing firewall rules

Manage peer RIB table

Add get peer and get notification channel from the status recorder

Update interface peers allowed IPs
2022-09-05 09:06:35 +02:00
Maycon Santos
788bb00ef1 Fix service install when sysV service bin exists (#450) 2022-09-05 08:56:07 +02:00
Maycon Santos
4e5ee70b3d Load WgPort from config file and exchange via signal (#449)
Added additional common blacklisted interfaces

Updated the signal protocol to pass the peer port and netbird version

Co-authored-by: braginini <bangvalo@gmail.com>
2022-09-02 19:33:35 +02:00
Maycon Santos
f1c00ae543 Update service library with rcS init system support (#447) 2022-09-02 14:03:02 +02:00
Misha Bragin
553a13588b Free up gRPC client resources on errors (#448) 2022-09-01 18:28:45 +02:00
Maycon Santos
586c0f5c3d Log remote address when not registered (#445) 2022-08-27 17:55:05 +02:00
Maycon Santos
c13f0b9f07 Use select for turn credentials and peers update (#443)
Also, prevent peer update when SSH is the same
2022-08-27 12:57:03 +02:00
Misha Bragin
dd4ff61b51 Do not autoload authissuer for the IDPManager config (#442) 2022-08-25 09:24:24 +02:00
szakharchenko
e3657610bc Avoid pulling in management code in client (#437)
Avoid management code import for the legacy port value, hardcoding it
instead (it's literally spelled out in a comment below as well).
2022-08-24 16:30:40 +02:00
Misha Bragin
e8733a37af Update scripts for the self-hosted Oauth 2.0 Device Auth Grant support (#439)
Support Oauth 2.0 Device Auth Grant in the
self-hosted scripts.
2022-08-24 14:37:18 +02:00
Misha Bragin
3def84b111 Support Generic OAuth 2.0 Device Authorization Grant (#433)
Support Generic OAuth 2.0 Device Authorization Grant
as per RFC specification https://www.rfc-editor.org/rfc/rfc8628.
The previous version supported only Auth0 as an IDP backend.
This implementation enables the Interactive SSO Login feature 
for any IDP compatible with the specification, e.g., Keycloak.
2022-08-23 15:46:12 +02:00
Maycon Santos
47add9a9c3 Don't create index if peer is empty (#435)
When checking for existing prefix routes
Return nil if peer is empty
2022-08-23 11:09:56 +02:00
Maycon Santos
09312b3e6d Add Network ID and rename Prefix to Network (#432)
Adding network ID will allow us to group

Renaming Prefix with Network
will keep things more clear and Consistent
2022-08-22 14:10:24 +02:00
Misha Bragin
762a26dcea Fix Register/Deregister race on Signal (#431)
This PR fixes a race condition that happens
when agents connect to a Signal stream, multiple
times within a short amount of time. Common on
slow and unstable internet connections.
Every time an agent establishes a new connection
to Signal, Signal creates a Stream and writes an entry
to the registry of connected peers storing the stream.
Every time an agent disconnects, Signal removes the
stream from the registry.
Due to unstable connections, the agent could detect
a broken connection, and attempt to reconnect to Signal.
Signal will override the stream, but it might detect
the old broken connection later, causing peer deregistration.
It will deregister the peer leaving the client thinking
it is still connected, rejecting any messages.
2022-08-22 12:21:19 +02:00
Maycon Santos
000ea72aec Add routing Rest API support (#428)
Routing API will allow us to list, create, update, and delete routes.
2022-08-20 19:11:54 +02:00
Maycon Santos
4b34a6d6df Add routing support to management service (#424)
Management will receive and store routes that are associated with a peer ID.
The routes are distributed to peers according to their ACLs.
2022-08-18 18:22:15 +02:00
Misha Bragin
c39cd2f7b0 Support new properties for OIDC auth (#426)
This PR updates infrastructure_scripts to support
self-hosted setup with a generic OIDC provider.
2022-08-17 21:44:20 +02:00
Misha Bragin
6dc3e8ca90 Enable HTTP/2 when loading TLS config from file (#423)
When creating TLSConfig from provided certificate file, the HTTP/2 support is not enabled.
It works with Certmanager because it adds h2 support.
We enable it the same way when creating TLSConfig from files.
2022-08-15 19:36:00 +02:00
Misha Bragin
245863cd51 Update docker-compose to reflect new ports (#411) 2022-08-05 22:41:57 +02:00
Maycon Santos
14e322d3f7 Handle CORS requests before authentication (#413)
This helps our FE to get proper request responses
2022-08-05 22:41:04 +02:00
Misha Bragin
1be8c16e34 Decrease log level on peer status remove (#410) 2022-08-01 17:52:22 +02:00
Misha Bragin
851de3fd4e Output NetBird daemon and CLI versions on status command (#408) 2022-08-01 12:42:45 +02:00
Maycon Santos
c13288781f Fix checksum conflict and version injection (#409)
custom name_template for darwin ui release checksum file

fix darwin ui version injection to correct path
2022-08-01 12:20:30 +02:00
Misha Bragin
e34e0ccd12 Check and update Agent's Management URL if is legacy (#406)
All the existing agents by default connect to port 33073 of the
Management service. This value is also stored in the local config.
All the agents won't switch to the new port 443
unless explicitly specified in the config.
We want the transition to be smooth for our users, therefore
this PR adds logic to check whether the old port 33073 can be
changed to 443 and updates the config automatically.
2022-07-30 19:17:18 +02:00
Maycon Santos
95dc9cc16c Split goreleaser for UI and parallelized workflow (#405)
decouple goreleaser ui might help us
parallelize workflow and run local tests

dividing the release workflow for each goreleaser
and making trigger sign a different job them
when small issues with sign happen
2022-07-30 14:44:01 +02:00
Maycon Santos
d1c2b3d703 Use unix.Uname to get Darwin system info (#404)
This prevents the client from needing to use command line tools
2022-07-30 11:31:27 +02:00
Misha Bragin
966661fe91 Serve Management gRPC and HTTP on a single 80/443 port (#400)
This PR is a part of an effort to use standard ports (443 or 80) that are usually allowed by default in most of the environments.

Right now Management Service runs the Let'sEncrypt manager on port 443, HTTP API server on port 33071,
and a gRPC server on port 33073. There are three separate listeners.
This PR combines these listeners into one.
With this change, the HTTP and gRPC server runs on either 443 with TLS or 80 without TLS
by default (no --port specified).
Let's Encrypt manager always runs on port 443 if enabled.
The backward compatibility server runs on port 33073 (with TLS or without).
HTTP port 33071 is obsolete and not used anymore.

Newly installed agents will connect to port 443 by default instead of port 33073 if not specified otherwise.
2022-07-29 20:37:09 +02:00
Misha Bragin
67ddaade58 Go mod tidy (#401)
Check git status after go mod tidy
2022-07-27 20:19:55 +02:00
Maycon Santos
138cf35e00 Sync go mod (#399) 2022-07-27 18:57:18 +02:00
Maycon Santos
2555a6c3e8 Use proxy when any candidate is relay (#398)
We should use relayed port when remote or local
candidate is of the relay type
2022-07-27 18:12:39 +02:00
Misha Bragin
86a66c6202 Make Signal Service listen on a standard 443/80 port instead of 10000 (#396)
Right now Signal Service runs the Let'sEncrypt manager on port 80
and a gRPC server on port 10000. There are two separate listeners.
This PR combines these listeners into one with a cmux lib.
The gRPC server runs on either 443 with TLS or 80 without TLS.
Let's Encrypt manager always runs on port 80.
2022-07-25 19:55:38 +02:00
Misha Bragin
275d364df6 Fix TURN credentials renewal (#394)
Update conn config with new TURN credentials

Updated Signal connection timeout to 5s
2022-07-21 22:07:38 +02:00
Maycon Santos
a3c5fa1307 Add PATH to client Dockerfile (#389)
Useful when SSH to client containers
2022-07-12 15:35:51 +02:00
Maycon Santos
75a69ca26b Write the Admin URL when creating new config (#388) 2022-07-12 15:02:51 +02:00
Misha Bragin
ae8e3ad6fe Enable SSH Login for docker (#385) 2022-07-07 16:33:16 +02:00
Maycon Santos
ff729f6755 Use id command for user lookup on MacOS (#384)
When building client without CGO, user.Lookup
attempts to get user from /etc/passwd
Which doesn't have the user as MacOS uses
opendirectoryd as user directory
2022-07-07 16:13:46 +02:00
Maycon Santos
7e1b20da5d Always initialize status recorder (#383)
Always initialize the status recorder

Utilize proto methods to get pbFullStatus values.
2022-07-07 13:54:47 +02:00
Misha Bragin
d4a3ee9d87 Load user profile when SSH (#380)
This PR fixes issues with the terminal when
running netbird ssh to a remote agent.
Every session looks up a user and loads its
profile. If no user is found, the connection is rejected.
The default user is root.
2022-07-07 11:24:38 +02:00
Maycon Santos
49e9113e0f Enhance status command (#382)
Print peer status from the package

Added --detail flag for detailed status output
2022-07-05 19:47:50 +02:00
Misha Bragin
3bdfa3cc8e Introduce larger retries for the agent (#379)
The Management client will try reconnecting in case.
of network issues or non-permanent errors.
If the device was off-boarded, then the client will stop retrying.
2022-07-02 20:38:16 +02:00
Maycon Santos
8c953c5a2c Add client status collection (#368) 2022-07-02 12:02:17 +02:00
Maycon Santos
e95f0f7acb Support 32 bit (#374)
Add build for 32 bits linux

improved windows test time
2022-07-01 10:42:38 +02:00
Misha Bragin
fa7b413fe7 Fix SSH command on Docker (#377) 2022-06-29 14:03:30 +02:00
Misha Bragin
295f0c755a Add Router nodes feature to the coming soon list 2022-06-27 08:57:06 +03:00
Misha Bragin
a98f6f840a Add Easy SSH to the features list 2022-06-27 08:55:32 +03:00
Misha Bragin
faad5a1e98 Add Easy SSH banner 2022-06-27 08:50:34 +03:00
Maycon Santos
e8caa562b0 Send netmask from account network (#369)
* Send netmask from account network

Added the GetPeerNetwork method to account manager

Pass a copy of the network to the toPeerConfig function
to retrieve the netmask from the network instead of constant

updated methods and added test

* check if the network is the same for 2 peers

* Use expect with BeEquivalentTo
2022-06-24 21:30:51 +02:00
Maycon Santos
1aafc15607 Update self hosting scripts (#367)
split setup.env with example and base

add setup.env to .gitignore to avoid overwrite from new versions

Added test workflow for docker-compose 
and validated configure.sh generated variables
2022-06-24 14:50:14 +02:00
Misha Bragin
06860c4c10 NetBird SSH (#361)
This PR adds support for SSH access through the NetBird network
without managing SSH skeys.
NetBird client app has an embedded SSH server (Linux/Mac only) 
and a netbird ssh command.
2022-06-23 17:04:53 +02:00
Maycon Santos
f883a10535 Rollback dash board image location 2022-06-21 19:01:50 +02:00
Maycon Santos
8ec7f1cd96 Update dashboard docker image 2022-06-21 18:17:38 +02:00
mlsmaycon
aae84e40e2 Update slack invitations link 2022-06-21 11:01:10 +02:00
Misha Bragin
5623735234 Update docs to reflect released access control 2022-06-20 22:34:16 +02:00
Maycon Santos
f9f2d7c7ef Check if new account ID is already being used (#364) 2022-06-20 18:20:43 +02:00
Maycon Santos
35c7cae267 Add homebrew bin path on Apple Silicon (#365)
This was causing issues on new models
2022-06-20 11:34:24 +02:00
Maycon Santos
503a116f7c OpenAPI specification and API Adjusts (#356)
Introduced an OpenAPI specification.
Updated API handlers to use the specification types.

Added patch operation for rules and groups
and methods to the account manager.

HTTP PUT operations require id, fail if not provided.

Use snake_case for HTTP request and response body
2022-06-14 10:32:54 +02:00
Misha Bragin
a454a1aa28 Create account in once place (#358)
There are a few places where an account is created.
When we create a new account, there should be
some defaults set. E.g. created by and group ALL.
It makes sense to add it in one place to avoid inconsistencies.
2022-06-09 13:14:34 +02:00
Misha Bragin
a88ac40b05 Update README to comply with Codacy standards (#360) 2022-06-09 12:09:05 +02:00
Misha Bragin
bfff6110aa Add community projects section 2022-06-09 08:32:41 +02:00
Maycon Santos
f810feafdf Expire device flow info on success (#359)
We should expire the device flow
info soon as we get a token with success.
2022-06-09 02:14:31 +02:00
braginini
57536da245 Go mod tidy 2022-06-08 01:08:48 +02:00
braginini
c9b5328f19 Fix account ALL group creation 2022-06-08 00:30:19 +02:00
Misha Bragin
dab146ed87 Improve Management startup time (#355) 2022-06-06 13:45:59 +02:00
Misha Bragin
b96e616844 Update badges 2022-06-06 12:11:20 +02:00
Misha Bragin
0cba0f81e0 Warmup IDP cache on Management start (#354) 2022-06-06 12:05:44 +02:00
222 changed files with 27755 additions and 4598 deletions

View File

@@ -0,0 +1,30 @@
---
name: Bug/Issue report
about: Create a report to help us improve
title: ''
labels: ''
assignees: ''
---
**Describe the problem**
A clear and concise description of what the problem is.
**To Reproduce**
Steps to reproduce the behavior:
1. Go to '...'
2. Click on '....'
3. Scroll down to '....'
4. See error
**Expected behavior**
A clear and concise description of what you expected to happen.
**NetBird status -d output:**
If applicable, add the output of the `netbird status -d` command
**Screenshots**
If applicable, add screenshots to help explain your problem.
**Additional context**
Add any other context about the problem here.

View File

@@ -0,0 +1,20 @@
---
name: Feature request
about: Suggest an idea for this project
title: ''
labels: ''
assignees: ''
---
**Is your feature request related to a problem? Please describe.**
A clear and concise description of what the problem is. Ex. I'm always frustrated when [...]
**Describe the solution you'd like**
A clear and concise description of what you want to happen.
**Describe alternatives you've considered**
A clear and concise description of any alternative solutions or features you've considered.
**Additional context**
Add any other context or screenshots about the feature request here.

10
.github/pull_request_template.md vendored Normal file
View File

@@ -0,0 +1,10 @@
## Describe your changes
## Issue ticket number and link
### Checklist
- [ ] Is it a bug fix
- [ ] Is a typo/documentation fix
- [ ] Is a feature enhancement
- [ ] Created tests that fail without the change (if possible)
- [ ] Extended the README / documentation, if necessary

View File

@@ -1,16 +1,19 @@
name: Test Code Darwin
on: [push,pull_request]
on:
push:
branches:
- main
pull_request:
jobs:
test:
strategy:
matrix:
go-version: [1.18.x]
runs-on: macos-latest
steps:
- name: Install Go
uses: actions/setup-go@v2
with:
go-version: ${{ matrix.go-version }}
go-version: 1.19.x
- name: Checkout code
uses: actions/checkout@v2
@@ -26,4 +29,4 @@ jobs:
run: go mod tidy
- name: Test
run: go test -exec 'sudo --preserve-env=CI' -timeout 5m -p 1 ./...
run: go test -exec 'sudo --preserve-env=CI' -timeout 5m -p 1 ./...

View File

@@ -1,16 +1,22 @@
name: Test Code Linux
on: [push,pull_request]
on:
push:
branches:
- main
pull_request:
jobs:
test:
strategy:
matrix:
go-version: [1.18.x]
arch: ['386','amd64']
runs-on: ubuntu-latest
steps:
- name: Install Go
uses: actions/setup-go@v2
with:
go-version: ${{ matrix.go-version }}
go-version: 1.19.x
- name: Cache Go modules
@@ -25,10 +31,62 @@ jobs:
uses: actions/checkout@v2
- name: Install dependencies
run: sudo apt update && sudo apt install -y -q libgtk-3-dev libappindicator3-dev libayatana-appindicator3-dev libgl1-mesa-dev xorg-dev
run: sudo apt update && sudo apt install -y -q libgtk-3-dev libayatana-appindicator3-dev libgl1-mesa-dev xorg-dev
- name: Install modules
run: go mod tidy
- name: Test
run: go test -exec 'sudo --preserve-env=CI' -timeout 5m -p 1 ./...
run: GOARCH=${{ matrix.arch }} go test -exec 'sudo --preserve-env=CI' -timeout 5m -p 1 ./...
test_client_on_docker:
runs-on: ubuntu-latest
steps:
- name: Install Go
uses: actions/setup-go@v2
with:
go-version: 1.19.x
- name: Cache Go modules
uses: actions/cache@v2
with:
path: ~/go/pkg/mod
key: ${{ runner.os }}-go-${{ hashFiles('**/go.sum') }}
restore-keys: |
${{ runner.os }}-go-
- name: Checkout code
uses: actions/checkout@v2
- name: Install dependencies
run: sudo apt update && sudo apt install -y -q libgtk-3-dev libayatana-appindicator3-dev libgl1-mesa-dev xorg-dev
- name: Install modules
run: go mod tidy
- name: Generate Iface Test bin
run: go test -c -o iface-testing.bin ./iface/...
- name: Generate RouteManager Test bin
run: go test -c -o routemanager-testing.bin ./client/internal/routemanager/...
- name: Generate Engine Test bin
run: go test -c -o engine-testing.bin ./client/internal/*.go
- name: Generate Peer Test bin
run: go test -c -o peer-testing.bin ./client/internal/peer/...
- run: chmod +x *testing.bin
- name: Run Iface tests in docker
run: docker run -t --cap-add=NET_ADMIN --privileged --rm -v $PWD:/ci -w /ci/iface --entrypoint /busybox/sh gcr.io/distroless/base:debug -c /ci/iface-testing.bin -test.timeout 5m -test.parallel 1
- name: Run RouteManager tests in docker
run: docker run -t --cap-add=NET_ADMIN --privileged --rm -v $PWD:/ci -w /ci/client/internal/routemanager --entrypoint /busybox/sh gcr.io/distroless/base:debug -c /ci/routemanager-testing.bin -test.timeout 5m -test.parallel 1
- name: Run Engine tests in docker
run: docker run -t --cap-add=NET_ADMIN --privileged --rm -v $PWD:/ci -w /ci/client/internal --entrypoint /busybox/sh gcr.io/distroless/base:debug -c /ci/engine-testing.bin -test.timeout 5m -test.parallel 1
- name: Run Peer tests in docker
run: docker run -t --cap-add=NET_ADMIN --privileged --rm -v $PWD:/ci -w /ci/client/internal/peer --entrypoint /busybox/sh gcr.io/distroless/base:debug -c /ci/peer-testing.bin -test.timeout 5m -test.parallel 1

View File

@@ -1,5 +1,11 @@
name: Test Code Windows
on: [push,pull_request]
on:
push:
branches:
- main
pull_request:
jobs:
pre:
runs-on: ubuntu-latest
@@ -17,41 +23,30 @@ jobs:
test:
needs: pre
strategy:
matrix:
go-version: [1.18.x]
runs-on: windows-latest
steps:
- name: disable defender
run: Set-MpPreference -DisableRealtimeMonitoring $true
- name: Checkout code
uses: actions/checkout@v2
- name: Install Go
uses: actions/setup-go@v2
with:
go-version: ${{ matrix.go-version }}
go-version: 1.19.x
- uses: actions/cache@v2
with:
path: |
%LocalAppData%\go-build
~/go/pkg/mod
~\go\pkg\mod
~\AppData\Local\go-build
key: ${{ runner.os }}-go-${{ hashFiles('**/go.sum') }}
restore-keys: |
${{ runner.os }}-go-
- name: enable defender
run: Set-MpPreference -DisableRealtimeMonitoring $false
- uses: actions/download-artifact@v2
with:
name: syso
path: iface\
# - name: Install modules
# run: go mod tidy
- name: Test
run: go test -tags=load_wgnt_from_rsrc -timeout 5m -p 1 ./...
run: go test -tags=load_wgnt_from_rsrc -timeout 5m -p 1 ./...

View File

@@ -6,12 +6,13 @@ jobs:
runs-on: ubuntu-latest
steps:
- uses: actions/checkout@v2
- name: Install Go
uses: actions/setup-go@v2
with:
go-version: 1.19.x
- name: Install dependencies
run: sudo apt update && sudo apt install -y -q libgtk-3-dev libappindicator3-dev libayatana-appindicator3-dev libgl1-mesa-dev xorg-dev
run: sudo apt update && sudo apt install -y -q libgtk-3-dev libayatana-appindicator3-dev libgl1-mesa-dev xorg-dev
- name: golangci-lint
uses: golangci/golangci-lint-action@v2
with:
args: --timeout=6m
args: --timeout=6m

View File

@@ -9,7 +9,8 @@ on:
pull_request:
env:
SIGN_PIPE_VER: "v0.0.3"
SIGN_PIPE_VER: "v0.0.4"
GORELEASER_VER: "v1.6.3"
jobs:
release:
@@ -28,7 +29,7 @@ jobs:
name: Set up Go
uses: actions/setup-go@v2
with:
go-version: 1.18
go-version: 1.19
-
name: Cache Go modules
uses: actions/cache@v1
@@ -40,6 +41,9 @@ jobs:
-
name: Install modules
run: go mod tidy
-
name: check git status
run: git --no-pager diff --exit-code
-
name: Set up QEMU
uses: docker/setup-qemu-action@v1
@@ -54,45 +58,75 @@ jobs:
username: netbirdio
password: ${{ secrets.DOCKER_TOKEN }}
- name: Install dependencies
run: sudo apt update && sudo apt install -y -q libgtk-3-dev libappindicator3-dev libayatana-appindicator3-dev libgl1-mesa-dev xorg-dev gcc-mingw-w64-x86-64
- name: Install rsrc
run: go install github.com/akavel/rsrc@v0.10.2
- name: Generate windows rsrc
run: rsrc -arch amd64 -ico client/ui/netbird.ico -manifest client/ui/manifest.xml -o client/ui/resources_windows_amd64.syso
-
name: Run GoReleaser
uses: goreleaser/goreleaser-action@v2
with:
version: v1.6.3
version: ${{ env.GORELEASER_VER }}
args: release --rm-dist
env:
GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
HOMEBREW_TAP_GITHUB_TOKEN: ${{ secrets.HOMEBREW_TAP_GITHUB_TOKEN }}
UPLOAD_DEBIAN_SECRET: ${{ secrets.PKG_UPLOAD_SECRET }}
UPLOAD_YUM_SECRET: ${{ secrets.PKG_UPLOAD_SECRET }}
-
name: Trigger Windows binaries sign pipeline
uses: benc-uk/workflow-dispatch@v1
if: startsWith(github.ref, 'refs/tags/')
with:
workflow: Sign windows bin and installer
repo: netbirdio/sign-pipelines
ref: ${{ env.SIGN_PIPE_VER }}
token: ${{ secrets.SIGN_GITHUB_TOKEN }}
inputs: '{ "tag": "${{ github.ref }}" }'
-
name: upload non tags for debug purposes
uses: actions/upload-artifact@v2
with:
name: build
name: release
path: dist/
retention-days: 3
release_ui:
runs-on: ubuntu-latest
steps:
- name: Checkout
uses: actions/checkout@v2
with:
fetch-depth: 0 # It is required for GoReleaser to work properly
- name: Set up Go
uses: actions/setup-go@v2
with:
go-version: 1.19
- name: Cache Go modules
uses: actions/cache@v1
with:
path: ~/go/pkg/mod
key: ${{ runner.os }}-ui-go-${{ hashFiles('**/go.sum') }}
restore-keys: |
${{ runner.os }}-ui-go-
- name: Install modules
run: go mod tidy
- name: check git status
run: git --no-pager diff --exit-code
- name: Install dependencies
run: sudo apt update && sudo apt install -y -q libgtk-3-dev libayatana-appindicator3-dev libgl1-mesa-dev xorg-dev gcc-mingw-w64-x86-64
- name: Install rsrc
run: go install github.com/akavel/rsrc@v0.10.2
- name: Generate windows rsrc
run: rsrc -arch amd64 -ico client/ui/netbird.ico -manifest client/ui/manifest.xml -o client/ui/resources_windows_amd64.syso
- name: Run GoReleaser
uses: goreleaser/goreleaser-action@v2
with:
version: ${{ env.GORELEASER_VER }}
args: release --config .goreleaser_ui.yaml --rm-dist
env:
GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
HOMEBREW_TAP_GITHUB_TOKEN: ${{ secrets.HOMEBREW_TAP_GITHUB_TOKEN }}
UPLOAD_DEBIAN_SECRET: ${{ secrets.PKG_UPLOAD_SECRET }}
UPLOAD_YUM_SECRET: ${{ secrets.PKG_UPLOAD_SECRET }}
- name: upload non tags for debug purposes
uses: actions/upload-artifact@v2
with:
name: release-ui
path: dist/
retention-days: 3
release_ui_darwin:
runs-on: macos-latest
steps:
-
@@ -104,15 +138,15 @@ jobs:
name: Set up Go
uses: actions/setup-go@v2
with:
go-version: 1.18
go-version: 1.19
-
name: Cache Go modules
uses: actions/cache@v1
with:
path: ~/go/pkg/mod
key: ${{ runner.os }}-go-${{ hashFiles('**/go.sum') }}
key: ${{ runner.os }}-ui-go-${{ hashFiles('**/go.sum') }}
restore-keys: |
${{ runner.os }}-go-
${{ runner.os }}-ui-go-
-
name: Install modules
run: go mod tidy
@@ -121,26 +155,42 @@ jobs:
id: goreleaser
uses: goreleaser/goreleaser-action@v2
with:
version: v1.6.3
version: ${{ env.GORELEASER_VER }}
args: release --config .goreleaser_ui_darwin.yaml --rm-dist
env:
GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
-
name: Trigger Darwin App binaries sign pipeline
uses: benc-uk/workflow-dispatch@v1
if: startsWith(github.ref, 'refs/tags/')
name: upload non tags for debug purposes
uses: actions/upload-artifact@v2
with:
workflow: Sign darwin ui app with dispatch
name: release-ui-darwin
path: dist/
retention-days: 3
trigger_windows_signer:
runs-on: ubuntu-latest
needs: [release,release_ui]
if: startsWith(github.ref, 'refs/tags/')
steps:
- name: Trigger Windows binaries sign pipeline
uses: benc-uk/workflow-dispatch@v1
with:
workflow: Sign windows bin and installer
repo: netbirdio/sign-pipelines
ref: ${{ env.SIGN_PIPE_VER }}
token: ${{ secrets.SIGN_GITHUB_TOKEN }}
inputs: '{ "tag": "${{ github.ref }}" }'
-
name: upload non tags for debug purposes
uses: actions/upload-artifact@v2
trigger_darwin_signer:
runs-on: ubuntu-latest
needs: release_ui_darwin
if: startsWith(github.ref, 'refs/tags/')
steps:
- name: Trigger Darwin App binaries sign pipeline
uses: benc-uk/workflow-dispatch@v1
with:
name: build-ui-darwin
path: dist/
retention-days: 3
workflow: Sign darwin ui app with dispatch
repo: netbirdio/sign-pipelines
ref: ${{ env.SIGN_PIPE_VER }}
token: ${{ secrets.SIGN_GITHUB_TOKEN }}
inputs: '{ "tag": "${{ github.ref }}" }'

View File

@@ -0,0 +1,80 @@
name: Test Docker Compose Linux
on:
push:
branches:
- main
pull_request:
jobs:
test:
runs-on: ubuntu-latest
steps:
- name: Install jq
run: sudo apt-get install -y jq
- name: Install curl
run: sudo apt-get install -y curl
- name: Install Go
uses: actions/setup-go@v2
with:
go-version: 1.19.x
- name: Cache Go modules
uses: actions/cache@v2
with:
path: ~/go/pkg/mod
key: ${{ runner.os }}-go-${{ hashFiles('**/go.sum') }}
restore-keys: |
${{ runner.os }}-go-
- name: Checkout code
uses: actions/checkout@v2
- name: cp setup.env
run: cp infrastructure_files/tests/setup.env infrastructure_files/
- name: run configure
working-directory: infrastructure_files
run: bash -x configure.sh
env:
CI_NETBIRD_AUTH_CLIENT_ID: ${{ secrets.CI_NETBIRD_AUTH_CLIENT_ID }}
CI_NETBIRD_AUTH_AUDIENCE: testing.ci
CI_NETBIRD_AUTH_OIDC_CONFIGURATION_ENDPOINT: https://example.eu.auth0.com/.well-known/openid-configuration
CI_NETBIRD_USE_AUTH0: true
- name: check values
working-directory: infrastructure_files
env:
CI_NETBIRD_AUTH_CLIENT_ID: ${{ secrets.CI_NETBIRD_AUTH_CLIENT_ID }}
CI_NETBIRD_AUTH_AUDIENCE: testing.ci
CI_NETBIRD_AUTH_OIDC_CONFIGURATION_ENDPOINT: https://example.eu.auth0.com/.well-known/openid-configuration
CI_NETBIRD_USE_AUTH0: true
CI_NETBIRD_AUTH_SUPPORTED_SCOPES: "openid profile email offline_access api email_verified"
CI_NETBIRD_AUTH_AUTHORITY: https://example.eu.auth0.com/
CI_NETBIRD_AUTH_JWT_CERTS: https://example.eu.auth0.com/.well-known/jwks.json
CI_NETBIRD_AUTH_TOKEN_ENDPOINT: https://example.eu.auth0.com/oauth/token
CI_NETBIRD_AUTH_DEVICE_AUTH_ENDPOINT: https://example.eu.auth0.com/oauth/device/code
CI_NETBIRD_AUTH_REDIRECT_URI: "/peers"
run: |
grep AUTH_CLIENT_ID docker-compose.yml | grep $CI_NETBIRD_AUTH_CLIENT_ID
grep AUTH_AUTHORITY docker-compose.yml | grep $CI_NETBIRD_AUTH_AUTHORITY
grep AUTH_AUDIENCE docker-compose.yml | grep $CI_NETBIRD_AUTH_AUDIENCE
grep AUTH_SUPPORTED_SCOPES docker-compose.yml | grep "$CI_NETBIRD_AUTH_SUPPORTED_SCOPES"
grep USE_AUTH0 docker-compose.yml | grep $CI_NETBIRD_USE_AUTH0
grep NETBIRD_MGMT_API_ENDPOINT docker-compose.yml | grep "http://localhost:33073"
grep AUTH_REDIRECT_URI docker-compose.yml | grep $CI_NETBIRD_AUTH_REDIRECT_URI
grep AUTH_SILENT_REDIRECT_URI docker-compose.yml | egrep 'AUTH_SILENT_REDIRECT_URI=$'
- name: run docker compose up
working-directory: infrastructure_files
run: |
docker-compose up -d
sleep 5
- name: test running containers
run: |
count=$(docker compose ps --format json | jq '.[] | select(.Project | contains("infrastructure_files")) | .State' | grep -c running)
test $count -eq 4
working-directory: infrastructure_files

3
.gitignore vendored
View File

@@ -1,4 +1,5 @@
.idea
.run
*.iml
dist/
bin/
@@ -9,3 +10,5 @@ infrastructure_files/management.json
infrastructure_files/docker-compose.yml
*.syso
client/.distfiles/
infrastructure_files/setup.env
.vscode

View File

@@ -13,6 +13,7 @@ builds:
- amd64
- arm64
- mips
- 386
gomips:
- hardfloat
- softfloat
@@ -21,6 +22,8 @@ builds:
goarch: arm64
- goos: windows
goarch: arm
- goos: windows
goarch: 386
ldflags:
- -s -w -X github.com/netbirdio/netbird/client/system.version={{.Version}} -X main.commit={{.Commit}} -X main.date={{.CommitDate}} -X main.builtBy=goreleaser
mod_timestamp: '{{ .CommitTimestamp }}'
@@ -38,7 +41,7 @@ builds:
- arm64
- arm
ldflags:
- -s -w -X main.version={{.Version}} -X main.commit={{.Commit}} -X main.date={{.CommitDate}} -X main.builtBy=goreleaser
- -s -w -X github.com/netbirdio/netbird/client/system.version={{.Version}} -X main.commit={{.Commit}} -X main.date={{.CommitDate}} -X main.builtBy=goreleaser
mod_timestamp: '{{ .CommitTimestamp }}'
- id: netbird-signal
@@ -55,88 +58,12 @@ builds:
- -s -w -X main.version={{.Version}} -X main.commit={{.Commit}} -X main.date={{.CommitDate}} -X main.builtBy=goreleaser
mod_timestamp: '{{ .CommitTimestamp }}'
- id: netbird-ui
dir: client/ui
binary: netbird-ui
env:
- CGO_ENABLED=1
goos:
- linux
goarch:
- amd64
ldflags:
- -s -w -X github.com/netbirdio/netbird/client/system.version={{.Version}} -X main.commit={{.Commit}} -X main.date={{.CommitDate}} -X main.builtBy=goreleaser
mod_timestamp: '{{ .CommitTimestamp }}'
- id: netbird-ui-windows
dir: client/ui
binary: netbird-ui
env:
- CGO_ENABLED=1
- CC=x86_64-w64-mingw32-gcc
goos:
- windows
goarch:
- amd64
ldflags:
- -s -w -X github.com/netbirdio/netbird/client/system.version={{.Version}} -X main.commit={{.Commit}} -X main.date={{.CommitDate}} -X main.builtBy=goreleaser
- -H windowsgui
mod_timestamp: '{{ .CommitTimestamp }}'
archives:
- builds:
- netbird
- id: linux-arch
name_template: "{{ .ProjectName }}-ui-linux_{{ .Version }}_{{ .Os }}_{{ .Arch }}"
builds:
- netbird-ui
- id: windows-arch
name_template: "{{ .ProjectName }}-ui-windows_{{ .Version }}_{{ .Os }}_{{ .Arch }}"
builds:
- netbird-ui-windows
nfpms:
- maintainer: Netbird <dev@netbird.io>
description: Netbird client UI.
homepage: https://netbird.io/
id: netbird-ui-deb
package_name: netbird-ui
builds:
- netbird-ui
formats:
- deb
contents:
- src: client/ui/netbird.desktop
dst: /usr/share/applications/netbird.desktop
- src: client/ui/disconnected.png
dst: /usr/share/pixmaps/netbird.png
dependencies:
- libayatana-appindicator3-1
- libgtk-3-dev
- libappindicator3-dev
- netbird
- maintainer: Netbird <dev@netbird.io>
description: Netbird client UI.
homepage: https://netbird.io/
id: netbird-ui-rpm
package_name: netbird-ui
builds:
- netbird-ui
formats:
- rpm
contents:
- src: client/ui/netbird.desktop
dst: /usr/share/applications/netbird.desktop
- src: client/ui/disconnected.png
dst: /usr/share/pixmaps/netbird.png
dependencies:
- libayatana-appindicator3-1
- libgtk-3-dev
- libappindicator3-dev
- netbird
- maintainer: Netbird <dev@netbird.io>
description: Netbird client.
homepage: https://netbird.io/
@@ -147,11 +74,6 @@ nfpms:
formats:
- deb
replaces:
- wiretrustee
conflicts:
- wiretrustee
scripts:
postinstall: "release_files/post_install.sh"
preremove: "release_files/pre_remove.sh"
@@ -166,12 +88,6 @@ nfpms:
formats:
- rpm
replaces:
- wiretrustee
conflicts:
- wiretrustee
scripts:
postinstall: "release_files/post_install.sh"
preremove: "release_files/pre_remove.sh"
@@ -421,14 +337,11 @@ brews:
license: "BSD3"
test: |
system "#{bin}/{{ .ProjectName }} version"
conflicts:
- wiretrustee
uploads:
- name: debian
ids:
- netbird-deb
- netbird-ui-deb
mode: archive
target: https://pkgs.wiretrustee.com/debian/pool/{{ .ArtifactName }};deb.distribution=stable;deb.component=main;deb.architecture={{ if .Arm }}armhf{{ else }}{{ .Arch }}{{ end }};deb.package=
username: dev@wiretrustee.com
@@ -437,7 +350,6 @@ uploads:
- name: yum
ids:
- netbird-rpm
- netbird-ui-rpm
mode: archive
target: https://pkgs.wiretrustee.com/yum/{{ .Arch }}{{ if .Arm }}{{ .Arm }}{{ end }}
username: dev@wiretrustee.com

98
.goreleaser_ui.yaml Normal file
View File

@@ -0,0 +1,98 @@
project_name: netbird-ui
builds:
- id: netbird-ui
dir: client/ui
binary: netbird-ui
env:
- CGO_ENABLED=1
goos:
- linux
goarch:
- amd64
ldflags:
- -s -w -X github.com/netbirdio/netbird/client/system.version={{.Version}} -X main.commit={{.Commit}} -X main.date={{.CommitDate}} -X main.builtBy=goreleaser
mod_timestamp: '{{ .CommitTimestamp }}'
- id: netbird-ui-windows
dir: client/ui
binary: netbird-ui
env:
- CGO_ENABLED=1
- CC=x86_64-w64-mingw32-gcc
goos:
- windows
goarch:
- amd64
ldflags:
- -s -w -X github.com/netbirdio/netbird/client/system.version={{.Version}} -X main.commit={{.Commit}} -X main.date={{.CommitDate}} -X main.builtBy=goreleaser
- -H windowsgui
mod_timestamp: '{{ .CommitTimestamp }}'
archives:
- id: linux-arch
name_template: "{{ .ProjectName }}-linux_{{ .Version }}_{{ .Os }}_{{ .Arch }}"
builds:
- netbird-ui
- id: windows-arch
name_template: "{{ .ProjectName }}-windows_{{ .Version }}_{{ .Os }}_{{ .Arch }}"
builds:
- netbird-ui-windows
nfpms:
- maintainer: Netbird <dev@netbird.io>
description: Netbird client UI.
homepage: https://netbird.io/
id: netbird-ui-deb
package_name: netbird-ui
builds:
- netbird-ui
formats:
- deb
contents:
- src: client/ui/netbird.desktop
dst: /usr/share/applications/netbird.desktop
- src: client/ui/disconnected.png
dst: /usr/share/pixmaps/netbird.png
dependencies:
- libayatana-appindicator3-1
- libgtk-3-dev
- libappindicator3-dev
- netbird
- maintainer: Netbird <dev@netbird.io>
description: Netbird client UI.
homepage: https://netbird.io/
id: netbird-ui-rpm
package_name: netbird-ui
builds:
- netbird-ui
formats:
- rpm
contents:
- src: client/ui/netbird.desktop
dst: /usr/share/applications/netbird.desktop
- src: client/ui/disconnected.png
dst: /usr/share/pixmaps/netbird.png
dependencies:
- libayatana-appindicator3-1
- libgtk-3-dev
- libappindicator3-dev
- netbird
uploads:
- name: debian
ids:
- netbird-ui-deb
mode: archive
target: https://pkgs.wiretrustee.com/debian/pool/{{ .ArtifactName }};deb.distribution=stable;deb.component=main;deb.architecture={{ if .Arm }}armhf{{ else }}{{ .Arch }}{{ end }};deb.package=
username: dev@wiretrustee.com
method: PUT
- name: yum
ids:
- netbird-ui-rpm
mode: archive
target: https://pkgs.wiretrustee.com/yum/{{ .Arch }}{{ if .Arm }}{{ .Arm }}{{ end }}
username: dev@wiretrustee.com
method: PUT

View File

@@ -14,7 +14,7 @@ builds:
- hardfloat
- softfloat
ldflags:
- -s -w -X github.com/netbirdio/netbird/client/ui/system.version={{.Version}} -X main.commit={{.Commit}} -X main.date={{.CommitDate}} -X main.builtBy=goreleaser
- -s -w -X github.com/netbirdio/netbird/client/system.version={{.Version}} -X main.commit={{.Commit}} -X main.date={{.CommitDate}} -X main.builtBy=goreleaser
mod_timestamp: '{{ .CommitTimestamp }}'
tags:
- load_wgnt_from_rsrc
@@ -23,5 +23,7 @@ archives:
- builds:
- netbird-ui-darwin
checksum:
name_template: "{{ .ProjectName }}_darwin_checksums.txt"
changelog:
skip: true

View File

@@ -60,7 +60,7 @@ representative at an online or offline event.
Instances of abusive, harassing, or otherwise unacceptable behavior may be
reported to the community leaders responsible for enforcement at
dev@wiretrustee.com.
community@netbird.io.
All complaints will be reviewed and investigated promptly and fairly.
All community leaders are obligated to respect the privacy and security of the

218
CONTRIBUTING.md Normal file
View File

@@ -0,0 +1,218 @@
# Contributing to NetBird
Thanks for your interest in contributing to NetBird.
There are many ways that you can contribute:
- Reporting issues
- Updating documentation
- Sharing use cases in slack or Reddit
- Bug fix or feature enhancement
If you haven't already, join our slack workspace [here](https://join.slack.com/t/netbirdio/shared_invite/zt-vrahf41g-ik1v7fV8du6t0RwxSrJ96A), we would love to discuss topics that need community contribution and enhancements to existing features.
## Contents
- [Contributing to NetBird](#contributing-to-netbird)
- [Contents](#contents)
- [Code of conduct](#code-of-conduct)
- [Directory structure](#directory-structure)
- [Development setup](#development-setup)
- [Requirements](#requirements)
- [Local NetBird setup](#local-netbird-setup)
- [Build and start](#build-and-start)
- [Test suite](#test-suite)
- [Checklist before submitting a PR](#checklist-before-submitting-a-pr)
- [Other project repositories](#other-project-repositories)
- [Checklist before submitting a new node](#checklist-before-submitting-a-new-node)
- [Contributor License Agreement](#contributor-license-agreement)
## Code of conduct
This project and everyone participating in it are governed by the Code of
Conduct which can be found in the file [CODE_OF_CONDUCT.md](CODE_OF_CONDUCT.md).
By participating, you are expected to uphold this code. Please report
unacceptable behavior to community@netbird.io.
## Directory structure
The NetBird project monorepo is organized to maintain most of its individual dependencies code within their directories, except for a few auxiliary or shared packages.
The most important directories are:
- [/.github](/.github) - Github actions workflow files and issue templates
- [/client](/client) - NetBird agent code
- [/client/cmd](/client/cmd) - NetBird agent cli code
- [/client/internal](/client/internal) - NetBird agent business logic code
- [/client/proto](/client/proto) - NetBird agent daemon GRPC proto files
- [/client/server](/client/server) - NetBird agent daemon code for background execution
- [/client/ui](/client/ui) - NetBird agent UI code
- [/encryption](/encryption) - Contain main encryption code for agent communication
- [/iface](/iface) - Wireguard® interface code
- [/infrastructure_files](/infrastructure_files) - Getting started files containing docker and template scripts
- [/management](/management) - Management service code
- [/management/client](/management/client) - Management service client code which is imported by the agent code
- [/management/proto](/management/proto) - Management service GRPC proto files
- [/management/server](/management/server) - Management service server code
- [/management/server/http](/management/server/http) - Management service REST API code
- [/management/server/idp](/management/server/idp) - Management service IDP management code
- [/release_files](/release_files) - Files that goes into release packages
- [/signal](/signal) - Signal service code
- [/signal/client](/signal/client) - Signal service client code which is imported by the agent code
- [/signal/peer](/signal/peer) - Signal service peer message logic
- [/signal/proto](/signal/proto) - Signal service GRPC proto files
- [/signal/server](/signal/server) - Signal service server code
## Development setup
If you want to contribute to bug fixes or improve existing features, you have to ensure that all needed
dependencies are installed. Here is a short guide on how that can be done.
### Requirements
#### Go 1.19
Follow the installation guide from https://go.dev/
#### UI client - Fyne toolkit
We use the fyne toolkit in our UI client. You can follow its requirement guide to have all its dependencies installed: https://developer.fyne.io/started/#prerequisites
#### gRPC
You can follow the instructions from the quickstarter guide https://grpc.io/docs/languages/go/quickstart/#prerequisites and then run the `generate.sh` files located in each `proto` directory to generate changes.
> **IMPORTANT**: We are very open to contributions that can improve the client daemon protocol. For Signal and Management protocols, please reach out on slack or via github issues with your proposals.
#### Docker
Follow the installation guide from https://docs.docker.com/get-docker/
#### Goreleaser and golangci-lint
We utilize two tools in our Github actions workflows:
- Goreleaser: Used for release packaging. You can follow the installation steps [here](https://goreleaser.com/install/); keep in mind to match the version defined in [release.yml](/.github/workflows/release.yml)
- golangci-lint: Used for linting checks. You can follow the installation steps [here](https://golangci-lint.run/usage/install/); keep in mind to match the version defined in [golangci-lint.yml](/.github/workflows/golangci-lint.yml)
They can be executed from the repository root before every push or PR:
**Goreleaser**
```shell
goreleaser --snapshot --rm-dist
```
**golangci-lint**
```shell
golangci-lint run
```
### Local NetBird setup
> **IMPORTANT**: All the steps below have to get executed at least once to get the development setup up and running!
Now that everything NetBird requires to run is installed, the actual NetBird code can be
checked out and set up:
1. [Fork](https://guides.github.com/activities/forking/#fork) the NetBird repository
2. Clone your forked repository
```
git clone https://github.com/<your_github_username>/netbird.git
```
3. Go into the repository folder
```
cd netbird
```
4. Add the original NetBird repository as `upstream` to your forked repository
```
git remote add upstream https://github.com/netbirdio/netbird.git
```
5. Install all Go dependencies:
```
go mod tidy
```
### Build and start
#### Client
> Windows clients have a Wireguard driver requirement. We provide a bash script that can be executed in WLS 2 with docker support [wireguard_nt.sh](/client/wireguard_nt.sh).
To start NetBird, execute:
```
cd client
# bash wireguard_nt.sh # if windows
go build .
```
To start NetBird the client in the foreground:
```
sudo ./client up --log-level debug --log-file console
```
> On Windows use a powershell with administrator privileges
#### Signal service
To start NetBird's signal, execute:
```
cd signal
go build .
```
To start NetBird the signal service:
```
./signal run --log-level debug --log-file console
```
#### Management service
> You may need to generate a configuration file for management. Follow steps 2 to 5 from our [self-hosting guide](https://netbird.io/docs/getting-started/self-hosting).
To start NetBird's management, execute:
```
cd management
go build .
```
To start NetBird the management service:
```
./management management --log-level debug --log-file console --config ./management.json
```
### Test suite
The tests can be started via:
```
cd netbird
go test -exec sudo ./...
```
> On Windows use a powershell with administrator privileges
## Checklist before submitting a PR
As a critical network service and open-source project, we must enforce a few things before submitting the pull-requests:
- Keep functions as simple as possible, with a single purpose
- Use private functions and constants where possible
- Comment on any new public functions
- Add unit tests for any new public function
> When pushing fixes to the PR comments, please push as separate commits; we will squash the PR before merging, so there is no need to squash it before pushing it, and we are more than okay with 10-100 commits in a single PR. This helps review the fixes to the requested changes.
## Other project repositories
NetBird project is composed of 3 main repositories:
- NetBird: This repository, which contains the code for the agents and control plane services.
- Dashboard: https://github.com/netbirdio/dashboard, contains the Administration UI for the management service
- Documentations: https://github.com/netbirdio/docs, contains the documentation from https://netbird.io/docs
## Contributor License Agreement
That we do not have any potential problems later it is sadly necessary to sign a [Contributor License Agreement](CONTRIBUTOR_LICENSE_AGREEMENT.md). That can be done literally with the push of a button.
A bot will automatically comment on the pull request once it got opened asking for the agreement to be signed. Before it did not get signed it is sadly not possible to merge it in.

View File

@@ -0,0 +1,148 @@
# Contributor License Agreement
We are incredibly thankful for the contributions we receive from the community.
We require our external contributors to sign a Contributor License Agreement ("CLA") in
order to ensure that our projects remain licensed under Free and Open Source licenses such
as BSD-3 while allowing Wiretrustee to build a sustainable business.
Wiretrustee is committed to having a true Open Source Software ("OSS") license for
our software. A CLA enables Wiretrustee to safely commercialize our products
while keeping a standard OSS license with all the rights that license grants to users: the
ability to use the project in their own projects or businesses, to republish modified
source, or to completely fork the project.
This page gives a human-friendly summary of our CLA, details on why we require a CLA, how
contributors can sign our CLA, and more. You may view the full legal CLA document (below).
# Human-friendly summary
This is a human-readable summary of (and not a substitute for) the full agreement (below).
This highlights only some of key terms of the CLA. It has no legal value and you should
carefully review all the terms of the actual CLA before agreeing.
<li>Grant of copyright license. You give Wiretrustee permission to use your copyrighted work
in commercial products.
</li>
<li>Grant of patent license. If your contributed work uses a patent, you give Wiretrustee a
license to use that patent including within commercial products. You also agree that you
have permission to grant this license.
</li>
<li>No Warranty or Support Obligations.
By making a contribution, you are not obligating yourself to provide support for the
contribution, and you are not taking on any warranty obligations or providing any
assurances about how it will perform.
</li>
The CLA does not change the terms of the standard open source license used by our software
such as BSD-3 or MIT.
You are still free to use our projects within your own projects or businesses, republish
modified source, and more.
Please reference the appropriate license for the project you're contributing to to learn
more.
# Why require a CLA?
Agreeing to a CLA explicitly states that you are entitled to provide a contribution, that you cannot withdraw permission
to use your contribution at a later date, and that Wiretrustee has permission to use your contribution in our commercial
products.
This removes any ambiguities or uncertainties caused by not having a CLA and allows users and customers to confidently
adopt our projects. At the same time, the CLA ensures that all contributions to our open source projects are licensed
under the project's respective open source license, such as BSD-3.
Requiring a CLA is a common and well-accepted practice in open source. Major open source projects require CLAs such as
Apache Software Foundation projects, Facebook projects (such as React), Google projects (including Go), Python, Django,
and more. Each of these projects remains licensed under permissive OSS licenses such as MIT, Apache, BSD, and more.
# Signing the CLA
Open a pull request ("PR") to any of our open source projects to sign the CLA. A bot will comment on the PR asking you
to sign the CLA if you haven't already.
Follow the steps given by the bot to sign the CLA. This will require you to log in with GitHub (we only request public
information from your account) and to fill in a few additional details such as your name and email address. We will only
use this information for CLA tracking; none of your submitted information will be used for marketing purposes.
You only have to sign the CLA once. Once you've signed the CLA, future contributions to any Wiretrustee project will not
require you to sign again.
# Legal Terms and Agreement
In order to clarify the intellectual property license granted with Contributions from any person or entity, Wiretrustee
UG (haftungsbeschränkt) ("Wiretrustee") must have a Contributor License Agreement ("CLA") on file that has been signed
by each Contributor, indicating agreement to the license terms below. This license does not change your rights to use
your own Contributions for any other purpose.
You accept and agree to the following terms and conditions for Your present and future Contributions submitted to
Wiretrustee. Except for the license granted herein to Wiretrustee and recipients of software distributed by Wiretrustee,
You reserve all right, title, and interest in and to Your Contributions.
1. Definitions.
```
"You" (or "Your") shall mean the copyright owner or legal entity authorized by the copyright owner
that is making this Agreement with Wiretrustee. For legal entities, the entity making a Contribution and all other
entities that control, are controlled by, or are under common control with that entity are considered
to be a single Contributor. For the purposes of this definition, "control" means (i) the power, direct or indirect,
to cause the direction or management of such entity, whether by contract or otherwise, or (ii) ownership of fifty
percent (50%) or more of the outstanding shares, or (iii) beneficial ownership of such entity.
```
```
"Contribution" shall mean any original work of authorship, including any modifications or additions to
an existing work, that is or previously has been intentionally submitted by You to Wiretrustee for inclusion in,
or documentation of, any of the products owned or managed by Wiretrustee (the "Work").
For the purposes of this definition, "submitted" means any form of electronic, verbal, or written communication
sent to Wiretrustee or its representatives, including but not limited to communication on electronic mailing lists,
source code control systems, and issue tracking systems that are managed by, or on behalf of,
Wiretrustee for the purpose of discussing and improving the Work, but excluding communication that is conspicuously
marked or otherwise designated in writing by You as "Not a Contribution."
```
2. Grant of Copyright License. Subject to the terms and conditions of this Agreement, You hereby grant to Wiretrustee
and to recipients of software distributed by Wiretrustee a perpetual, worldwide, non-exclusive, no-charge,
royalty-free, irrevocable copyright license to reproduce, prepare derivative works of, publicly display, publicly
perform, sublicense, and distribute Your Contributions and such derivative works.
3. Grant of Patent License. Subject to the terms and conditions of this Agreement, You hereby grant to Wiretrustee and
to recipients of software distributed by Wiretrustee a perpetual, worldwide, non-exclusive, no-charge, royalty-free,
irrevocable (except as stated in this section) patent license to make, have made, use, offer to sell, sell, import,
and otherwise transfer the Work, where such license applies only to those patent claims licensable by You that are
necessarily infringed by Your Contribution(s) alone or by combination of Your Contribution(s) with the Work to which
such Contribution(s) was submitted. If any entity institutes patent litigation against You or any other entity (
including a cross-claim or counterclaim in a lawsuit) alleging that your Contribution, or the Work to which you have
contributed, constitutes direct or contributory patent infringement, then any patent licenses granted to that entity
under this Agreement for that Contribution or Work shall terminate as of the date such litigation is filed.
4. You represent that you are legally entitled to grant the above license. If your employer(s) has rights to
intellectual property that you create that includes your Contributions, you represent that you have received
permission to make Contributions on behalf of that employer, that you will have received permission from your current
and future employers for all future Contributions, that your applicable employer has waived such rights for all of
your current and future Contributions to Wiretrustee, or that your employer has executed a separate Corporate CLA
with Wiretrustee.
5. You represent that each of Your Contributions is Your original creation (see section 7 for submissions on behalf of
others). You represent that Your Contribution submissions include complete details of any third-party license or
other restriction (including, but not limited to, related patents and trademarks) of which you are personally aware
and which are associated with any part of Your Contributions.
6. You are not expected to provide support for Your Contributions, except to the extent You desire to provide support.
You may provide support for free, for a fee, or not at all. Unless required by applicable law or agreed to in
writing, You provide Your Contributions on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
express or implied, including, without limitation, any warranties or conditions of TITLE, NON- INFRINGEMENT,
MERCHANTABILITY, or FITNESS FOR A PARTICULAR PURPOSE.
7. Should You wish to submit work that is not Your original creation, You may submit it to Wiretrustee separately from
any Contribution, identifying the complete details of its source and of any license or other restriction (including,
but not limited to, related patents, trademarks, and license agreements) of which you are personally aware, and
conspicuously marking the work as "Submitted on behalf of a third-party: [named here]".
8. You agree to notify Wiretrustee of any facts or circumstances of which you become aware that would make these
representations inaccurate in any respect.

100
README.md
View File

@@ -1,32 +1,22 @@
<p align="center">
<strong>:hatching_chick: New release! Beta Update May 2022</strong>.
<a href="https://github.com/netbirdio/netbird/releases/tag/v0.6.0">
<strong>:hatching_chick: New Release! DNS support.</strong>
<a href="https://github.com/netbirdio/netbird/releases">
Learn more
</a>
</p>
<br/>
<div align="center">
<p align="center">
<img width="234" src="docs/media/logo-full.png"/>
</p>
<p>
<a href="https://github.com/netbirdio/netbird/blob/main/LICENSE">
<img src="https://img.shields.io/badge/license-BSD--3-blue" />
</a>
<a href="https://hub.docker.com/r/wiretrustee/wiretrustee/tags">
<img src="https://img.shields.io/docker/pulls/wiretrustee/wiretrustee" />
</a>
<a href="https://www.codacy.com/gh/netbirdio/netbird/dashboard?utm_source=github.com&amp;utm_medium=referral&amp;utm_content=netbirdio/netbird&amp;utm_campaign=Badge_Grade"><img src="https://app.codacy.com/project/badge/Grade/e3013d046aec44cdb7462c8673b00976"/></a>
<br>
<a href="https://www.codacy.com/gh/wiretrustee/wiretrustee/dashboard?utm_source=github.com&amp;utm_medium=referral&amp;utm_content=wiretrustee/wiretrustee&amp;utm_campaign=Badge_Grade"><img src="https://app.codacy.com/project/badge/Grade/d366de2c9d8b4cf982da27f8f5831809"/></a>
<a href="https://goreportcard.com/report/wiretrustee/wiretrustee">
<img src="https://goreportcard.com/badge/github.com/wiretrustee/wiretrustee?style=flat-square" />
</a>
<br>
<a href="https://join.slack.com/t/wiretrustee/shared_invite/zt-vrahf41g-ik1v7fV8du6t0RwxSrJ96A">
<img src="https://img.shields.io/badge/slack-@wiretrustee-red.svg?logo=slack"/>
<a href="https://join.slack.com/t/netbirdio/shared_invite/zt-vrahf41g-ik1v7fV8du6t0RwxSrJ96A">
<img src="https://img.shields.io/badge/slack-@netbird-red.svg?logo=slack"/>
</a>
</p>
</div>
@@ -38,7 +28,7 @@
<br/>
See <a href="https://netbird.io/docs/">Documentation</a>
<br/>
Join our <a href="https://join.slack.com/t/wiretrustee/shared_invite/zt-vrahf41g-ik1v7fV8du6t0RwxSrJ96A">Slack channel</a>
Join our <a href="https://join.slack.com/t/netbirdio/shared_invite/zt-vrahf41g-ik1v7fV8du6t0RwxSrJ96A">Slack channel</a>
<br/>
</strong>
@@ -50,51 +40,50 @@
It requires zero configuration effort leaving behind the hassle of opening ports, complex firewall rules, VPN gateways, and so forth.
NetBird creates an overlay peer-to-peer network connecting machines automatically regardless of their location (home, office, datacenter, container, cloud or edge environments) unifying virtual private network management experience.
NetBird uses [NAT traversal techniques](https://en.wikipedia.org/wiki/Interactive_Connectivity_Establishment) to automatically create an overlay peer-to-peer network connecting machines regardless of location (home, office, data center, container, cloud, or edge environments), unifying virtual private network management experience.
**Key features:**
* Automatic IP allocation and management.
* Automatic WireGuard peer (machine) discovery and configuration.
* Encrypted peer-to-peer connections without a central VPN gateway.
* Connection relay fallback in case a peer-to-peer connection is not possible.
* Network management layer with a neat Web UI panel ([separate repo](https://github.com/netbirdio/dashboard))
* Desktop client applications for Linux, MacOS, and Windows.
* Multiuser support - sharing network between multiple users.
* SSO and MFA support.
* Multicloud and hybrid-cloud support.
* Kernel WireGuard usage when possible.
* Access Controls - groups & rules (coming soon).
* Private DNS (coming soon).
* Mobile clients (coming soon).
* Network Activity Monitoring (coming soon).
- \[x] Automatic IP allocation and network management with a Web UI ([separate repo](https://github.com/netbirdio/dashboard))
- \[x] Automatic WireGuard peer (machine) discovery and configuration.
- \[x] Encrypted peer-to-peer connections without a central VPN gateway.
- \[x] Connection relay fallback in case a peer-to-peer connection is not possible.
- \[x] Desktop client applications for Linux, MacOS, and Windows (systray).
- \[x] Multiuser support - sharing network between multiple users.
- \[x] SSO and MFA support.
- \[x] Multicloud and hybrid-cloud support.
- \[x] Kernel WireGuard usage when possible.
- \[x] Access Controls - groups & rules.
- \[x] Remote SSH access without managing SSH keys.
- \[x] Network Routes.
- \[x] Private DNS.
**Coming soon:**
- \[ ] Mobile clients.
- \[ ] Network Activity Monitoring.
### Secure peer-to-peer VPN with SSO and MFA in minutes
<p float="left" align="middle">
<img src="docs/media/peerA.gif" width="400"/>
<img src="docs/media/peerB.gif" width="400"/>
</p>
https://user-images.githubusercontent.com/700848/197345890-2e2cded5-7b7a-436f-a444-94e80dd24f46.mov
**Note**: The `main` branch may be in an *unstable or even broken state* during development.
For stable versions, see [releases](https://github.com/netbirdio/netbird/releases).
### Start using NetBird
* Hosted version: [https://app.netbird.io/](https://app.netbird.io/).
* See our documentation for [Quickstart Guide](https://netbird.io/docs/getting-started/quickstart).
* If you are looking to self-host NetBird, check our [Self-Hosting Guide](https://netbird.io/docs/getting-started/self-hosting).
* Step-by-step [Installation Guide](https://netbird.io/docs/getting-started/installation) for different platforms.
* Web UI [repository](https://github.com/netbirdio/dashboard).
* 5 min [demo video](https://youtu.be/Tu9tPsUWaY0) on YouTube.
- Hosted version: [https://app.netbird.io/](https://app.netbird.io/).
- See our documentation for [Quickstart Guide](https://netbird.io/docs/getting-started/quickstart).
- If you are looking to self-host NetBird, check our [Self-Hosting Guide](https://netbird.io/docs/getting-started/self-hosting).
- Step-by-step [Installation Guide](https://netbird.io/docs/getting-started/installation) for different platforms.
- Web UI [repository](https://github.com/netbirdio/dashboard).
- 5 min [demo video](https://youtu.be/Tu9tPsUWaY0) on YouTube.
### A bit on NetBird internals
* Every machine in the network runs [NetBird Agent (or Client)](client/) that manages WireGuard.
* NetBird features [Management Service](management/) that holds network state, manages peer IPs, and distributes network updates to peers.
* Every agent is connected to Management Service.
* NetBird agent uses WebRTC ICE implemented in [pion/ice library](https://github.com/pion/ice) to discover connection candidates when establishing a peer-to-peer connection between machines.
* Connection candidates are discovered with a help of [STUN](https://en.wikipedia.org/wiki/STUN) server.
* Agents negotiate a connection through [Signal Service](signal/) passing p2p encrypted messages.
* Signal Service uses public WireGuard keys to route messages between peers.
* Sometimes the NAT traversal is unsuccessful due to strict NATs (e.g. mobile carrier-grade NAT) and p2p connection isn't possible. When this occurs the system falls back to a relay server called [TURN](https://en.wikipedia.org/wiki/Traversal_Using_Relays_around_NAT), and a secure WireGuard tunnel is established via the TURN server.
- Every machine in the network runs [NetBird Agent (or Client)](client/) that manages WireGuard.
- Every agent connects to [Management Service](management/) that holds network state, manages peer IPs, and distributes network updates to agents (peers).
- NetBird agent uses WebRTC ICE implemented in [pion/ice library](https://github.com/pion/ice) to discover connection candidates when establishing a peer-to-peer connection between machines.
- Connection candidates are discovered with a help of [STUN](https://en.wikipedia.org/wiki/STUN) servers.
- Agents negotiate a connection through [Signal Service](signal/) passing p2p encrypted messages with candidates.
- Sometimes the NAT traversal is unsuccessful due to strict NATs (e.g. mobile carrier-grade NAT) and p2p connection isn't possible. When this occurs the system falls back to a relay server called [TURN](https://en.wikipedia.org/wiki/Traversal_Using_Relays_around_NAT), and a secure WireGuard tunnel is established via the TURN server.
[Coturn](https://github.com/coturn/coturn) is the one that has been successfully used for STUN and TURN in NetBird setups.
@@ -105,11 +94,20 @@ For stable versions, see [releases](https://github.com/netbirdio/netbird/release
See a complete [architecture overview](https://netbird.io/docs/overview/architecture) for details.
### Roadmap
- [Public Roadmap](https://github.com/netbirdio/netbird/projects/2)
- [Public Roadmap](https://github.com/netbirdio/netbird/projects/2)
### Community projects
- [NetBird on OpenWRT](https://github.com/messense/openwrt-netbird)
### Support acknowledgement
In November 2022, NetBird joined the [StartUpSecure program](https://www.forschung-it-sicherheit-kommunikationssysteme.de/foerderung/bekanntmachungen/startup-secure) sponsored by The Federal Ministry of Education and Research of The Federal Republic of Germany. Together with [CISPA Helmholtz Center for Information Security](https://cispa.de/en) NetBird brings the security best practices and simplicity to private networking.
![CISPA_Logo_BLACK_EN_RZ_RGB (1)](https://user-images.githubusercontent.com/700848/203091324-c6d311a0-22b5-4b05-a288-91cbc6cdcc46.png)
### Testimonials
We use open-source technologies like [WireGuard®](https://www.wireguard.com/), [Pion ICE (WebRTC)](https://github.com/pion/ice), and [Coturn](https://github.com/coturn/coturn). We very much appreciate the work these guys are doing and we'd greatly appreciate if you could support them in any way (e.g. giving a star or a contribution).
### Legal
[WireGuard](https://wireguard.com/) is a registered trademark of Jason A. Donenfeld.
_WireGuard_ and the _WireGuard_ logo are [registered trademarks](https://www.wireguard.com/trademark-policy/) of Jason A. Donenfeld.

12
SECURITY.md Normal file
View File

@@ -0,0 +1,12 @@
# Security Policy
NetBird's goal is to provide a secure network. If you find a vulnerability or bug, please report it by opening an issue [here](https://github.com/netbirdio/netbird/issues/new?assignees=&labels=&template=bug-issue-report.md&title=) or by contacting us by email.
There has yet to be an official bug bounty program for the NetBird project.
## Supported Versions
- We currently support only the latest version
## Reporting a Vulnerability
Please report security issues to `security@netbird.io`

View File

@@ -1,4 +1,7 @@
FROM gcr.io/distroless/base:debug
ENV WT_LOG_FILE=console
ENV PATH=/sbin:/usr/sbin:/bin:/usr/bin:/busybox
SHELL ["/busybox/sh","-c"]
RUN sed -i -E 's/(^root:.+)\/sbin\/nologin/\1\/busybox\/sh/g' /etc/passwd
ENTRYPOINT [ "/go/bin/netbird","up"]
COPY netbird /go/bin/netbird

View File

@@ -43,6 +43,8 @@ var loginCmd = &cobra.Command{
return fmt.Errorf("get config file: %v", err)
}
config, _ = internal.UpdateOldManagementPort(ctx, config, configPath)
err = foregroundLogin(ctx, cmd, config, setupKey)
if err != nil {
return fmt.Errorf("foreground login failed: %v", err)
@@ -167,7 +169,8 @@ func foregroundGetTokenInfo(ctx context.Context, cmd *cobra.Command, config *int
hostedClient := internal.NewHostedDeviceFlow(
providerConfig.ProviderConfig.Audience,
providerConfig.ProviderConfig.ClientID,
providerConfig.ProviderConfig.Domain,
providerConfig.ProviderConfig.TokenEndpoint,
providerConfig.ProviderConfig.DeviceAuthEndpoint,
)
flowInfo, err := hostedClient.RequestDeviceCode(context.TODO())

View File

@@ -6,7 +6,6 @@ import (
"fmt"
"io"
"io/fs"
"io/ioutil"
"os"
"os/signal"
"path"
@@ -94,6 +93,7 @@ func init() {
rootCmd.AddCommand(statusCmd)
rootCmd.AddCommand(loginCmd)
rootCmd.AddCommand(versionCmd)
rootCmd.AddCommand(sshCmd)
serviceCmd.AddCommand(runCmd, startCmd, stopCmd, restartCmd) // service control commands are subcommands of service
serviceCmd.AddCommand(installCmd, uninstallCmd) // service installer commands are subcommands of service
}
@@ -235,7 +235,7 @@ func copySymLink(source, dest string) error {
func cpDir(src string, dst string) error {
var err error
var fds []os.FileInfo
var fds []os.DirEntry
var srcinfo os.FileInfo
if srcinfo, err = os.Stat(src); err != nil {
@@ -246,7 +246,7 @@ func cpDir(src string, dst string) error {
return err
}
if fds, err = ioutil.ReadDir(src); err != nil {
if fds, err = os.ReadDir(src); err != nil {
return err
}
for _, fd := range fds {

View File

@@ -32,6 +32,7 @@ func newSVCConfig() *service.Config {
Name: name,
DisplayName: "Netbird",
Description: "A WireGuard-based mesh network that connects your devices into a single private network.",
Option: make(service.KeyValue),
}
}

View File

@@ -2,6 +2,8 @@ package cmd
import (
"context"
"os"
"path/filepath"
"runtime"
"github.com/spf13/cobra"
@@ -32,13 +34,34 @@ var installCmd = &cobra.Command{
}
if managementURL != "" {
svcConfig.Arguments = append(svcConfig.Arguments, "--management-url")
svcConfig.Arguments = append(svcConfig.Arguments, managementURL)
svcConfig.Arguments = append(svcConfig.Arguments, "--management-url", managementURL)
}
if logFile != "console" {
svcConfig.Arguments = append(svcConfig.Arguments, "--log-file", logFile)
}
if runtime.GOOS == "linux" {
// Respected only by systemd systems
svcConfig.Dependencies = []string{"After=network.target syslog.target"}
if logFile != "console" {
setStdLogPath := true
dir := filepath.Dir(logFile)
_, err := os.Stat(dir)
if err != nil {
err = os.MkdirAll(dir, 0750)
if err != nil {
setStdLogPath = false
}
}
if setStdLogPath {
svcConfig.Option["LogOutput"] = true
svcConfig.Option["LogDirectory"] = dir
}
}
}
ctx, cancel := context.WithCancel(cmd.Context())

115
client/cmd/ssh.go Normal file
View File

@@ -0,0 +1,115 @@
package cmd
import (
"context"
"errors"
"fmt"
"github.com/netbirdio/netbird/client/internal"
nbssh "github.com/netbirdio/netbird/client/ssh"
"github.com/netbirdio/netbird/util"
log "github.com/sirupsen/logrus"
"github.com/spf13/cobra"
"os"
"os/signal"
"strings"
"syscall"
)
var (
port int
user = "root"
host string
)
var sshCmd = &cobra.Command{
Use: "ssh",
Args: func(cmd *cobra.Command, args []string) error {
if len(args) < 1 {
return errors.New("requires a host argument")
}
split := strings.Split(args[0], "@")
if len(split) == 2 {
user = split[0]
host = split[1]
} else {
host = args[0]
}
return nil
},
Short: "connect to a remote SSH server",
RunE: func(cmd *cobra.Command, args []string) error {
SetFlagsFromEnvVars()
cmd.SetOut(cmd.OutOrStdout())
err := util.InitLog(logLevel, "console")
if err != nil {
return fmt.Errorf("failed initializing log %v", err)
}
if !util.IsAdmin() {
cmd.Printf("error: you must have Administrator privileges to run this command\n")
return nil
}
ctx := internal.CtxInitState(cmd.Context())
config, err := internal.ReadConfig("", "", configPath, nil)
if err != nil {
return err
}
sig := make(chan os.Signal, 1)
signal.Notify(sig, syscall.SIGTERM, syscall.SIGINT)
sshctx, cancel := context.WithCancel(ctx)
go func() {
// blocking
if err := runSSH(sshctx, host, []byte(config.SSHKey), cmd); err != nil {
log.Print(err)
}
cancel()
}()
select {
case <-sig:
cancel()
case <-sshctx.Done():
}
return nil
},
}
func runSSH(ctx context.Context, addr string, pemKey []byte, cmd *cobra.Command) error {
c, err := nbssh.DialWithKey(fmt.Sprintf("%s:%d", addr, port), user, pemKey)
if err != nil {
cmd.Printf("Error: %v\n", err)
cmd.Printf("Couldn't connect. " +
"You might be disconnected from the NetBird network, or the NetBird agent isn't running.\n" +
"Run the status command: \n\n" +
" netbird status\n\n" +
"It might also be that the SSH server is disabled on the agent you are trying to connect to.\n")
return nil
}
go func() {
<-ctx.Done()
err = c.Close()
if err != nil {
return
}
}()
err = c.OpenTerminal()
if err != nil {
return err
}
return nil
}
func init() {
sshCmd.PersistentFlags().IntVarP(&port, "port", "p", nbssh.DefaultSSHPort, "Sets remote SSH port. Defaults to "+fmt.Sprint(nbssh.DefaultSSHPort))
}

View File

@@ -3,13 +3,27 @@ package cmd
import (
"context"
"fmt"
"github.com/netbirdio/netbird/util"
"github.com/spf13/cobra"
"google.golang.org/grpc/status"
"net"
"net/netip"
"sort"
"strings"
"github.com/netbirdio/netbird/client/internal"
"github.com/netbirdio/netbird/client/internal/peer"
"github.com/netbirdio/netbird/client/proto"
nbStatus "github.com/netbirdio/netbird/client/status"
"github.com/netbirdio/netbird/client/system"
"github.com/netbirdio/netbird/util"
"github.com/spf13/cobra"
"google.golang.org/grpc/status"
)
var (
detailFlag bool
ipv4Flag bool
ipsFilter []string
statusFilter string
ipsFilterMap map[string]struct{}
)
var statusCmd = &cobra.Command{
@@ -20,7 +34,12 @@ var statusCmd = &cobra.Command{
cmd.SetOut(cmd.OutOrStdout())
err := util.InitLog(logLevel, "console")
err := parseFilters()
if err != nil {
return err
}
err = util.InitLog(logLevel, "console")
if err != nil {
return fmt.Errorf("failed initializing log %v", err)
}
@@ -35,21 +54,267 @@ var statusCmd = &cobra.Command{
}
defer conn.Close()
resp, err := proto.NewDaemonServiceClient(conn).Status(cmd.Context(), &proto.StatusRequest{})
resp, err := proto.NewDaemonServiceClient(conn).Status(cmd.Context(), &proto.StatusRequest{GetFullPeerStatus: true})
if err != nil {
return fmt.Errorf("status failed: %v", status.Convert(err).Message())
}
cmd.Printf("Status: %s\n\n", resp.GetStatus())
daemonStatus := fmt.Sprintf("Daemon status: %s\n", resp.GetStatus())
if resp.GetStatus() == string(internal.StatusNeedsLogin) || resp.GetStatus() == string(internal.StatusLoginFailed) {
cmd.Printf("Run UP command to log in with SSO (interactive login):\n\n" +
" netbird up \n\n" +
"If you are running a self-hosted version and no SSO provider has been configured in your Management Server,\n" +
"you can use a setup-key:\n\n netbird up --management-url <YOUR_MANAGEMENT_URL> --setup-key <YOUR_SETUP_KEY>\n\n" +
"More info: https://www.netbird.io/docs/overview/setup-keys\n\n")
cmd.Printf("%s\n"+
"Run UP command to log in with SSO (interactive login):\n\n"+
" netbird up \n\n"+
"If you are running a self-hosted version and no SSO provider has been configured in your Management Server,\n"+
"you can use a setup-key:\n\n netbird up --management-url <YOUR_MANAGEMENT_URL> --setup-key <YOUR_SETUP_KEY>\n\n"+
"More info: https://www.netbird.io/docs/overview/setup-keys\n\n",
daemonStatus,
)
return nil
}
pbFullStatus := resp.GetFullStatus()
fullStatus := fromProtoFullStatus(pbFullStatus)
cmd.Print(parseFullStatus(fullStatus, detailFlag, daemonStatus, resp.GetDaemonVersion(), ipv4Flag))
return nil
},
}
func init() {
ipsFilterMap = make(map[string]struct{})
statusCmd.PersistentFlags().BoolVarP(&detailFlag, "detail", "d", false, "display detailed status information")
statusCmd.PersistentFlags().BoolVar(&ipv4Flag, "ipv4", false, "display only NetBird IPv4 of this peer, e.g., --ipv4 will output 100.64.0.33")
statusCmd.PersistentFlags().StringSliceVar(&ipsFilter, "filter-by-ips", []string{}, "filters the detailed output by a list of one or more IPs, e.g., --filter-by-ips 100.64.0.100,100.64.0.200")
statusCmd.PersistentFlags().StringVar(&statusFilter, "filter-by-status", "", "filters the detailed output by connection status(connected|disconnected), e.g., --filter-by-status connected")
}
func parseFilters() error {
switch strings.ToLower(statusFilter) {
case "", "disconnected", "connected":
default:
return fmt.Errorf("wrong status filter, should be one of connected|disconnected, got: %s", statusFilter)
}
if len(ipsFilter) > 0 {
for _, addr := range ipsFilter {
_, err := netip.ParseAddr(addr)
if err != nil {
return fmt.Errorf("got an invalid IP address in the filter: address %s, error %s", addr, err)
}
ipsFilterMap[addr] = struct{}{}
}
}
return nil
}
func fromProtoFullStatus(pbFullStatus *proto.FullStatus) nbStatus.FullStatus {
var fullStatus nbStatus.FullStatus
managementState := pbFullStatus.GetManagementState()
fullStatus.ManagementState.URL = managementState.GetURL()
fullStatus.ManagementState.Connected = managementState.GetConnected()
signalState := pbFullStatus.GetSignalState()
fullStatus.SignalState.URL = signalState.GetURL()
fullStatus.SignalState.Connected = signalState.GetConnected()
localPeerState := pbFullStatus.GetLocalPeerState()
fullStatus.LocalPeerState.IP = localPeerState.GetIP()
fullStatus.LocalPeerState.PubKey = localPeerState.GetPubKey()
fullStatus.LocalPeerState.KernelInterface = localPeerState.GetKernelInterface()
fullStatus.LocalPeerState.FQDN = localPeerState.GetFqdn()
var peersState []nbStatus.PeerState
for _, pbPeerState := range pbFullStatus.GetPeers() {
timeLocal := pbPeerState.GetConnStatusUpdate().AsTime().Local()
peerState := nbStatus.PeerState{
IP: pbPeerState.GetIP(),
PubKey: pbPeerState.GetPubKey(),
ConnStatus: pbPeerState.GetConnStatus(),
ConnStatusUpdate: timeLocal,
Relayed: pbPeerState.GetRelayed(),
Direct: pbPeerState.GetDirect(),
LocalIceCandidateType: pbPeerState.GetLocalIceCandidateType(),
RemoteIceCandidateType: pbPeerState.GetRemoteIceCandidateType(),
FQDN: pbPeerState.GetFqdn(),
}
peersState = append(peersState, peerState)
}
fullStatus.Peers = peersState
return fullStatus
}
func parseFullStatus(fullStatus nbStatus.FullStatus, printDetail bool, daemonStatus string, daemonVersion string, flag bool) string {
interfaceIP := fullStatus.LocalPeerState.IP
ip, _, err := net.ParseCIDR(interfaceIP)
if err != nil {
return ""
}
if ipv4Flag {
return fmt.Sprintf("%s\n", ip)
}
var (
managementStatusURL = ""
signalStatusURL = ""
managementConnString = "Disconnected"
signalConnString = "Disconnected"
interfaceTypeString = "Userspace"
)
if printDetail {
managementStatusURL = fmt.Sprintf(" to %s", fullStatus.ManagementState.URL)
signalStatusURL = fmt.Sprintf(" to %s", fullStatus.SignalState.URL)
}
if fullStatus.ManagementState.Connected {
managementConnString = "Connected"
}
if fullStatus.SignalState.Connected {
signalConnString = "Connected"
}
if fullStatus.LocalPeerState.KernelInterface {
interfaceTypeString = "Kernel"
} else if fullStatus.LocalPeerState.IP == "" {
interfaceTypeString = "N/A"
interfaceIP = "N/A"
}
parsedPeersString, peersConnected := parsePeers(fullStatus.Peers, printDetail)
peersCountString := fmt.Sprintf("%d/%d Connected", peersConnected, len(fullStatus.Peers))
summary := fmt.Sprintf(
"Daemon version: %s\n"+
"CLI version: %s\n"+
"%s"+ // daemon status
"Management: %s%s\n"+
"Signal: %s%s\n"+
"Domain: %s\n"+
"NetBird IP: %s\n"+
"Interface type: %s\n"+
"Peers count: %s\n",
daemonVersion,
system.NetbirdVersion(),
daemonStatus,
managementConnString,
managementStatusURL,
signalConnString,
signalStatusURL,
fullStatus.LocalPeerState.FQDN,
interfaceIP,
interfaceTypeString,
peersCountString,
)
if printDetail {
return fmt.Sprintf(
"Peers detail:"+
"%s\n"+
"%s",
parsedPeersString,
summary,
)
}
return summary
}
func parsePeers(peers []nbStatus.PeerState, printDetail bool) (string, int) {
var (
peersString = ""
peersConnected = 0
)
if len(peers) > 0 {
sort.SliceStable(peers, func(i, j int) bool {
iAddr, _ := netip.ParseAddr(peers[i].IP)
jAddr, _ := netip.ParseAddr(peers[j].IP)
return iAddr.Compare(jAddr) == -1
})
}
connectedStatusString := peer.StatusConnected.String()
for _, peerState := range peers {
peerConnectionStatus := false
if peerState.ConnStatus == connectedStatusString {
peersConnected = peersConnected + 1
peerConnectionStatus = true
}
if printDetail {
if skipDetailByFilters(peerState, peerConnectionStatus) {
continue
}
localICE := "-"
remoteICE := "-"
connType := "-"
if peerConnectionStatus {
localICE = peerState.LocalIceCandidateType
remoteICE = peerState.RemoteIceCandidateType
connType = "P2P"
if peerState.Relayed {
connType = "Relayed"
}
}
peerString := fmt.Sprintf(
"\n %s:\n"+
" NetBird IP: %s\n"+
" Public key: %s\n"+
" Status: %s\n"+
" -- detail --\n"+
" Connection type: %s\n"+
" Direct: %t\n"+
" ICE candidate (Local/Remote): %s/%s\n"+
" Last connection update: %s\n",
peerState.FQDN,
peerState.IP,
peerState.PubKey,
peerState.ConnStatus,
connType,
peerState.Direct,
localICE,
remoteICE,
peerState.ConnStatusUpdate.Format("2006-01-02 15:04:05"),
)
peersString = peersString + peerString
}
}
return peersString, peersConnected
}
func skipDetailByFilters(peerState nbStatus.PeerState, isConnected bool) bool {
statusEval := false
ipEval := false
if statusFilter != "" {
lowerStatusFilter := strings.ToLower(statusFilter)
if lowerStatusFilter == "disconnected" && isConnected {
statusEval = true
} else if lowerStatusFilter == "connected" && !isConnected {
statusEval = true
}
}
if len(ipsFilter) > 0 {
_, ok := ipsFilterMap[peerState.IP]
if !ok {
ipEval = true
}
}
return statusEval || ipEval
}

View File

@@ -62,18 +62,18 @@ func startManagement(t *testing.T, config *mgmt.Config) (*grpc.Server, net.Liste
t.Fatal(err)
}
s := grpc.NewServer()
store, err := mgmt.NewStore(config.Datadir)
store, err := mgmt.NewFileStore(config.Datadir)
if err != nil {
t.Fatal(err)
}
peersUpdateManager := mgmt.NewPeersUpdateManager()
accountManager, err := mgmt.BuildManager(store, peersUpdateManager, nil)
accountManager, err := mgmt.BuildManager(store, peersUpdateManager, nil, "", "")
if err != nil {
t.Fatal(err)
}
turnManager := mgmt.NewTimeBasedAuthSecretsManager(peersUpdateManager, config.TURNConfig)
mgmtServer, err := mgmt.NewServer(config, accountManager, peersUpdateManager, turnManager)
mgmtServer, err := mgmt.NewServer(config, accountManager, peersUpdateManager, turnManager, nil)
if err != nil {
t.Fatal(err)
}

View File

@@ -5,6 +5,7 @@ import (
"fmt"
"github.com/netbirdio/netbird/client/internal"
"github.com/netbirdio/netbird/client/proto"
nbStatus "github.com/netbirdio/netbird/client/status"
"github.com/netbirdio/netbird/util"
log "github.com/sirupsen/logrus"
"github.com/spf13/cobra"
@@ -39,6 +40,8 @@ var upCmd = &cobra.Command{
return fmt.Errorf("get config file: %v", err)
}
config, _ = internal.UpdateOldManagementPort(ctx, config, configPath)
err = foregroundLogin(ctx, cmd, config, setupKey)
if err != nil {
return fmt.Errorf("foreground login failed: %v", err)
@@ -47,7 +50,7 @@ var upCmd = &cobra.Command{
var cancel context.CancelFunc
ctx, cancel = context.WithCancel(ctx)
SetupCloseHandler(ctx, cancel)
return internal.RunClient(ctx, config)
return internal.RunClient(ctx, config, nbStatus.NewRecorder())
}
conn, err := DialClientGRPCServer(ctx, daemonAddr)

View File

@@ -101,6 +101,7 @@ done:
Pop $2
Exch $1
FunctionEnd
!macro GetAppFromCommand in out
Push "${in}"
Call GetAppFromCommand
@@ -117,7 +118,7 @@ Call GetAppFromCommand ; Remove quotes and parameters from UninstCommand
Pop $0
Pop $1
GetFullPathName $2 "$0\.."
ExecWait '"$0" $1 _?=$2'
ExecWait '"$0" /S $1 _?=$2'
Delete "$0" ; Extra cleanup because we used _?=
RMDir "$2"
Pop $2
@@ -126,30 +127,27 @@ Pop $0
!macroend
Function .onInit
ReadRegStr $R0 HKLM "Software\Microsoft\Windows\CurrentVersion\Uninstall\Wiretrustee" "UninstallString"
${If} $R0 != ""
MessageBox MB_YESNO|MB_ICONQUESTION "Wiretrustee is installed. We must remove it before installing Netbird. Procced?" IDNO noWTUninstOld
!insertmacro UninstallPreviousNSIS $R0 "/NoMsgBox"
noWTUninstOld:
${EndIf}
StrCpy $INSTDIR "${INSTALL_DIR}"
ReadRegStr $R0 HKLM "Software\Microsoft\Windows\CurrentVersion\Uninstall\$(^NAME)" "UninstallString"
${If} $R0 != ""
MessageBox MB_YESNO|MB_ICONQUESTION "$(^NAME) is already installed. Do you want to remove the previous version?" IDNO noUninstOld
!insertmacro UninstallPreviousNSIS $R0 "/NoMsgBox"
noUninstOld:
# if silent install jump to uninstall step
IfSilent uninstall
MessageBox MB_YESNO|MB_ICONQUESTION "NetBird is already installed. We must remove it before installing upgrading NetBird. Proceed?" IDNO done IDYES uninstall
uninstall:
!insertmacro UninstallPreviousNSIS $R0 "/NoMsgBox"
done:
${EndIf}
FunctionEnd
######################################################################
Section -MainProgram
${INSTALL_TYPE}
SetOverwrite ifnewer
# SetOverwrite ifnewer
SetOutPath "$INSTDIR"
File /r "..\\dist\\netbird_windows_amd64\\"
SectionEnd
######################################################################
Section -Icons_Reg
@@ -172,24 +170,29 @@ SetShellVarContext current
CreateShortCut "$SMPROGRAMS\${APP_NAME}.lnk" "$INSTDIR\${UI_APP_EXE}"
CreateShortCut "$DESKTOP\${APP_NAME}.lnk" "$INSTDIR\${UI_APP_EXE}"
SetShellVarContext all
SectionEnd
Section -Post
ExecWait '"$INSTDIR\${MAIN_APP_EXE}" service install'
Exec '"$INSTDIR\${MAIN_APP_EXE}" service start'
ExecWait '"$INSTDIR\${MAIN_APP_EXE}" service start'
# sleep a bit for visibility
Sleep 1000
SectionEnd
######################################################################
Section Uninstall
${INSTALL_TYPE}
ExecWait '"$INSTDIR\${MAIN_APP_EXE}" service stop'
Exec '"$INSTDIR\${MAIN_APP_EXE}" service uninstall'
ExecWait '"$INSTDIR\${MAIN_APP_EXE}" service uninstall'
# kill ui client
ExecWait `taskkill /im ${UI_APP_EXE}.exe`
# wait the service uninstall take unblock the executable
Sleep 3000
Delete "$INSTDIR\${UI_APP_EXE}"
Delete "$INSTDIR\${MAIN_APP_EXE}"
RmDir /r "$INSTDIR"
SetShellVarContext current
@@ -209,4 +212,4 @@ SetShellVarContext current
SetOutPath $INSTDIR
ShellExecAsUser::ShellExecAsUser "" "$DESKTOP\${APP_NAME}.lnk"
SetShellVarContext all
FunctionEnd
FunctionEnd

View File

@@ -3,16 +3,17 @@ package internal
import (
"context"
"fmt"
mgm "github.com/netbirdio/netbird/management/client"
"google.golang.org/grpc/codes"
"google.golang.org/grpc/status"
"net/url"
"os"
"github.com/netbirdio/netbird/client/ssh"
"github.com/netbirdio/netbird/iface"
mgm "github.com/netbirdio/netbird/management/client"
"github.com/netbirdio/netbird/util"
log "github.com/sirupsen/logrus"
"golang.zx2c4.com/wireguard/wgctrl/wgtypes"
"google.golang.org/grpc/codes"
"google.golang.org/grpc/status"
)
var managementURLDefault *url.URL
@@ -22,7 +23,7 @@ func ManagementURLDefault() *url.URL {
}
func init() {
managementURL, err := parseURL("Management URL", "https://api.wiretrustee.com:33073")
managementURL, err := ParseURL("Management URL", "https://api.wiretrustee.com:443")
if err != nil {
panic(err)
}
@@ -32,20 +33,52 @@ func init() {
// Config Configuration type
type Config struct {
// Wireguard private key of local peer
PrivateKey string
PreSharedKey string
ManagementURL *url.URL
AdminURL *url.URL
WgIface string
IFaceBlackList []string
PrivateKey string
PreSharedKey string
ManagementURL *url.URL
AdminURL *url.URL
WgIface string
WgPort int
IFaceBlackList []string
DisableIPv6Discovery bool
// SSHKey is a private SSH key in a PEM format
SSHKey string
// ExternalIP mappings, if different than the host interface IP
//
// External IP must not be behind a CGNAT and port-forwarding for incoming UDP packets from WgPort on ExternalIP
// to WgPort on host interface IP must be present. This can take form of single port-forwarding rule, 1:1 DNAT
// mapping ExternalIP to host interface IP, or a NAT DMZ to host interface IP.
//
// A single mapping will take the form of: external[/internal]
// external (required): either the external IP address or "stun" to use STUN to determine the external IP address
// internal (optional): either the internal/interface IP address or an interface name
//
// examples:
// "12.34.56.78" => all interfaces IPs will be mapped to external IP of 12.34.56.78
// "12.34.56.78/eth0" => IPv4 assigned to interface eth0 will be mapped to external IP of 12.34.56.78
// "12.34.56.78/10.1.2.3" => interface IP 10.1.2.3 will be mapped to external IP of 12.34.56.78
NATExternalIPs []string
}
// createNewConfig creates a new config generating a new Wireguard key and saving to file
func createNewConfig(managementURL, adminURL, configPath, preSharedKey string) (*Config, error) {
wgKey := generateKey()
config := &Config{PrivateKey: wgKey, WgIface: iface.WgInterfaceDefault, IFaceBlackList: []string{}}
pem, err := ssh.GeneratePrivateKey(ssh.ED25519)
if err != nil {
return nil, err
}
config := &Config{
SSHKey: string(pem),
PrivateKey: wgKey,
WgIface: iface.WgInterfaceDefault,
WgPort: iface.DefaultWgPort,
IFaceBlackList: []string{},
DisableIPv6Discovery: false,
}
if managementURL != "" {
URL, err := parseURL("Management URL", managementURL)
URL, err := ParseURL("Management URL", managementURL)
if err != nil {
return nil, err
}
@@ -58,10 +91,18 @@ func createNewConfig(managementURL, adminURL, configPath, preSharedKey string) (
config.PreSharedKey = preSharedKey
}
config.IFaceBlackList = []string{iface.WgInterfaceDefault, "tun0", "zt", "ZeroTier", "utun", "wg", "ts",
"Tailscale", "tailscale"}
if adminURL != "" {
newURL, err := ParseURL("Admin Panel URL", adminURL)
if err != nil {
return nil, err
}
config.AdminURL = newURL
}
err := util.WriteJson(configPath, config)
config.IFaceBlackList = []string{iface.WgInterfaceDefault, "wt", "utun", "tun0", "zt", "ZeroTier", "utun", "wg", "ts",
"Tailscale", "tailscale", "docker", "veth", "br-"}
err = util.WriteJson(configPath, config)
if err != nil {
return nil, err
}
@@ -69,7 +110,8 @@ func createNewConfig(managementURL, adminURL, configPath, preSharedKey string) (
return config, nil
}
func parseURL(serviceName, managementURL string) (*url.URL, error) {
// ParseURL parses and validates management URL
func ParseURL(serviceName, managementURL string) (*url.URL, error) {
parsedMgmtURL, err := url.ParseRequestURI(managementURL)
if err != nil {
log.Errorf("failed parsing management URL %s: [%s]", managementURL, err.Error())
@@ -101,7 +143,7 @@ func ReadConfig(managementURL, adminURL, configPath string, preSharedKey *string
if managementURL != "" && config.ManagementURL.String() != managementURL {
log.Infof("new Management URL provided, updated to %s (old value %s)",
managementURL, config.ManagementURL)
newURL, err := parseURL("Management URL", managementURL)
newURL, err := ParseURL("Management URL", managementURL)
if err != nil {
return nil, err
}
@@ -112,7 +154,7 @@ func ReadConfig(managementURL, adminURL, configPath string, preSharedKey *string
if adminURL != "" && (config.AdminURL == nil || config.AdminURL.String() != adminURL) {
log.Infof("new Admin Panel URL provided, updated to %s (old value %s)",
adminURL, config.AdminURL)
newURL, err := parseURL("Admin Panel URL", adminURL)
newURL, err := ParseURL("Admin Panel URL", adminURL)
if err != nil {
return nil, err
}
@@ -126,6 +168,19 @@ func ReadConfig(managementURL, adminURL, configPath string, preSharedKey *string
config.PreSharedKey = *preSharedKey
refresh = true
}
if config.SSHKey == "" {
pem, err := ssh.GeneratePrivateKey(ssh.ED25519)
if err != nil {
return nil, err
}
config.SSHKey = string(pem)
refresh = true
}
if config.WgPort == 0 {
config.WgPort = iface.DefaultWgPort
refresh = true
}
if refresh {
// since we have new management URL, we need to update config file
@@ -174,9 +229,14 @@ type ProviderConfig struct {
// ClientSecret An IDP application client secret
ClientSecret string
// Domain An IDP API domain
// Deprecated. Use OIDCConfigEndpoint instead
Domain string
// Audience An Audience for to authorization validation
Audience string
// TokenEndpoint is the endpoint of an IDP manager where clients can obtain access token
TokenEndpoint string
// DeviceAuthEndpoint is the endpoint of an IDP manager where clients can obtain device authorization code
DeviceAuthEndpoint string
}
func GetDeviceAuthorizationFlowInfo(ctx context.Context, config *Config) (DeviceAuthorizationFlow, error) {
@@ -198,7 +258,13 @@ func GetDeviceAuthorizationFlowInfo(ctx context.Context, config *Config) (Device
log.Errorf("failed connecting to Management Service %s %v", config.ManagementURL.String(), err)
return DeviceAuthorizationFlow{}, err
}
log.Debugf("connected to management Service %s", config.ManagementURL.String())
log.Debugf("connected to the Management service %s", config.ManagementURL.String())
defer func() {
err = mgmClient.Close()
if err != nil {
log.Warnf("failed to close the Management service client %v", err)
}
}()
serverKey, err := mgmClient.GetServerPublicKey()
if err != nil {
@@ -217,20 +283,40 @@ func GetDeviceAuthorizationFlowInfo(ctx context.Context, config *Config) (Device
}
}
err = mgmClient.Close()
if err != nil {
log.Errorf("failed closing Management Service client: %v", err)
return DeviceAuthorizationFlow{}, err
}
return DeviceAuthorizationFlow{
deviceAuthorizationFlow := DeviceAuthorizationFlow{
Provider: protoDeviceAuthorizationFlow.Provider.String(),
ProviderConfig: ProviderConfig{
Audience: protoDeviceAuthorizationFlow.ProviderConfig.Audience,
ClientID: protoDeviceAuthorizationFlow.ProviderConfig.ClientID,
ClientSecret: protoDeviceAuthorizationFlow.ProviderConfig.ClientSecret,
Domain: protoDeviceAuthorizationFlow.ProviderConfig.Domain,
Audience: protoDeviceAuthorizationFlow.GetProviderConfig().GetAudience(),
ClientID: protoDeviceAuthorizationFlow.GetProviderConfig().GetClientID(),
ClientSecret: protoDeviceAuthorizationFlow.GetProviderConfig().GetClientSecret(),
Domain: protoDeviceAuthorizationFlow.GetProviderConfig().Domain,
TokenEndpoint: protoDeviceAuthorizationFlow.GetProviderConfig().GetTokenEndpoint(),
DeviceAuthEndpoint: protoDeviceAuthorizationFlow.GetProviderConfig().GetDeviceAuthEndpoint(),
},
}, nil
}
err = isProviderConfigValid(deviceAuthorizationFlow.ProviderConfig)
if err != nil {
return DeviceAuthorizationFlow{}, err
}
return deviceAuthorizationFlow, nil
}
func isProviderConfigValid(config ProviderConfig) error {
errorMSGFormat := "invalid provider configuration received from management: %s value is empty. Contact your NetBird administrator"
if config.Audience == "" {
return fmt.Errorf(errorMSGFormat, "Audience")
}
if config.ClientID == "" {
return fmt.Errorf(errorMSGFormat, "Client ID")
}
if config.TokenEndpoint == "" {
return fmt.Errorf(errorMSGFormat, "Token Endpoint")
}
if config.DeviceAuthEndpoint == "" {
return fmt.Errorf(errorMSGFormat, "Device Auth Endpoint")
}
return nil
}

View File

@@ -2,8 +2,13 @@ package internal
import (
"context"
"fmt"
"strings"
"time"
"github.com/netbirdio/netbird/client/ssh"
nbStatus "github.com/netbirdio/netbird/client/status"
"github.com/netbirdio/netbird/client/system"
"github.com/netbirdio/netbird/iface"
@@ -15,17 +20,17 @@ import (
"github.com/cenkalti/backoff/v4"
"golang.zx2c4.com/wireguard/wgctrl/wgtypes"
"google.golang.org/grpc/codes"
"google.golang.org/grpc/status"
gstatus "google.golang.org/grpc/status"
)
// RunClient with main logic.
func RunClient(ctx context.Context, config *Config) error {
func RunClient(ctx context.Context, config *Config, statusRecorder *nbStatus.Status) error {
backOff := &backoff.ExponentialBackOff{
InitialInterval: time.Second,
RandomizationFactor: backoff.DefaultRandomizationFactor,
Multiplier: backoff.DefaultMultiplier,
MaxInterval: 10 * time.Second,
MaxElapsedTime: 24 * 3 * time.Hour, // stop the client after 3 days trying (must be a huge problem, e.g permission denied)
RandomizationFactor: 1,
Multiplier: 1.7,
MaxInterval: 15 * time.Second,
MaxElapsedTime: 3 * 30 * 24 * time.Hour, // 3 months
Stop: backoff.Stop,
Clock: backoff.SystemClock,
}
@@ -39,6 +44,25 @@ func RunClient(ctx context.Context, config *Config) error {
}()
wrapErr := state.Wrap
myPrivateKey, err := wgtypes.ParseKey(config.PrivateKey)
if err != nil {
log.Errorf("failed parsing Wireguard key %s: [%s]", config.PrivateKey, err.Error())
return wrapErr(err)
}
var mgmTlsEnabled bool
if config.ManagementURL.Scheme == "https" {
mgmTlsEnabled = true
}
publicSSHKey, err := ssh.GeneratePublicKey([]byte(config.SSHKey))
if err != nil {
return err
}
managementURL := config.ManagementURL.String()
statusRecorder.MarkManagementDisconnected(managementURL)
operation := func() error {
// if context cancelled we not start new backoff cycle
select {
@@ -48,32 +72,55 @@ func RunClient(ctx context.Context, config *Config) error {
}
state.Set(StatusConnecting)
// validate our peer's Wireguard PRIVATE key
myPrivateKey, err := wgtypes.ParseKey(config.PrivateKey)
if err != nil {
log.Errorf("failed parsing Wireguard key %s: [%s]", config.PrivateKey, err.Error())
return wrapErr(err)
}
var mgmTlsEnabled bool
if config.ManagementURL.Scheme == "https" {
mgmTlsEnabled = true
}
engineCtx, cancel := context.WithCancel(ctx)
defer cancel()
defer func() {
statusRecorder.MarkManagementDisconnected(managementURL)
statusRecorder.CleanLocalPeerState()
cancel()
}()
log.Debugf("conecting to the Management service %s", config.ManagementURL.Host)
mgmClient, err := mgm.NewClient(engineCtx, config.ManagementURL.Host, myPrivateKey, mgmTlsEnabled)
if err != nil {
return wrapErr(gstatus.Errorf(codes.FailedPrecondition, "failed connecting to Management Service : %s", err))
}
log.Debugf("connected to the Management service %s", config.ManagementURL.Host)
defer func() {
err = mgmClient.Close()
if err != nil {
log.Warnf("failed to close the Management service client %v", err)
}
}()
// connect (just a connection, no stream yet) and login to Management Service to get an initial global Wiretrustee config
mgmClient, loginResp, err := connectToManagement(engineCtx, config.ManagementURL.Host, myPrivateKey, mgmTlsEnabled)
loginResp, err := loginToManagement(engineCtx, mgmClient, publicSSHKey)
if err != nil {
log.Debug(err)
if s, ok := status.FromError(err); ok && s.Code() == codes.PermissionDenied {
log.Info("peer registration required. Please run `netbird status` for details")
if s, ok := gstatus.FromError(err); ok && (s.Code() == codes.PermissionDenied) {
state.Set(StatusNeedsLogin)
return nil
return backoff.Permanent(wrapErr(err)) // unrecoverable error
}
return wrapErr(err)
}
statusRecorder.MarkManagementConnected(managementURL)
localPeerState := nbStatus.LocalPeerState{
IP: loginResp.GetPeerConfig().GetAddress(),
PubKey: myPrivateKey.PublicKey().String(),
KernelInterface: iface.WireguardModuleIsLoaded(),
FQDN: loginResp.GetPeerConfig().GetFqdn(),
}
statusRecorder.UpdateLocalPeerState(localPeerState)
signalURL := fmt.Sprintf("%s://%s",
strings.ToLower(loginResp.GetWiretrusteeConfig().GetSignal().GetProtocol().String()),
loginResp.GetWiretrusteeConfig().GetSignal().GetUri(),
)
statusRecorder.MarkSignalDisconnected(signalURL)
defer statusRecorder.MarkSignalDisconnected(signalURL)
// with the global Wiretrustee config in hand connect (just a connection, no stream yet) Signal
signalClient, err := connectToSignal(engineCtx, loginResp.GetWiretrusteeConfig(), myPrivateKey)
@@ -81,6 +128,14 @@ func RunClient(ctx context.Context, config *Config) error {
log.Error(err)
return wrapErr(err)
}
defer func() {
err = signalClient.Close()
if err != nil {
log.Warnf("failed closing Signal service client %v", err)
}
}()
statusRecorder.MarkSignalConnected(signalURL)
peerConfig := loginResp.GetPeerConfig()
@@ -90,7 +145,7 @@ func RunClient(ctx context.Context, config *Config) error {
return wrapErr(err)
}
engine := NewEngine(engineCtx, cancel, signalClient, mgmClient, engineConfig)
engine := NewEngine(engineCtx, cancel, signalClient, mgmClient, engineConfig, statusRecorder)
err = engine.Start()
if err != nil {
log.Errorf("error while starting Netbird Connection Engine: %s", err)
@@ -104,24 +159,13 @@ func RunClient(ctx context.Context, config *Config) error {
backOff.Reset()
err = mgmClient.Close()
if err != nil {
log.Errorf("failed closing Management Service client %v", err)
return wrapErr(err)
}
err = signalClient.Close()
if err != nil {
log.Errorf("failed closing Signal Service client %v", err)
return wrapErr(err)
}
err = engine.Stop()
if err != nil {
log.Errorf("failed stopping engine %v", err)
return wrapErr(err)
}
log.Info("stopped Netbird client")
log.Info("stopped NetBird client")
if _, err := state.Status(); err == ErrResetConnection {
return err
@@ -130,9 +174,12 @@ func RunClient(ctx context.Context, config *Config) error {
return nil
}
err := backoff.Retry(operation, backOff)
err = backoff.Retry(operation, backOff)
if err != nil {
log.Errorf("exiting client retry loop due to unrecoverable error: %s", err)
log.Debugf("exiting client retry loop due to unrecoverable error: %s", err)
if s, ok := gstatus.FromError(err); ok && (s.Code() == codes.PermissionDenied) {
state.Set(StatusNeedsLogin)
}
return err
}
return nil
@@ -142,11 +189,14 @@ func RunClient(ctx context.Context, config *Config) error {
func createEngineConfig(key wgtypes.Key, config *Config, peerConfig *mgmProto.PeerConfig) (*EngineConfig, error) {
engineConf := &EngineConfig{
WgIfaceName: config.WgIface,
WgAddr: peerConfig.Address,
IFaceBlackList: config.IFaceBlackList,
WgPrivateKey: key,
WgPort: iface.DefaultWgPort,
WgIfaceName: config.WgIface,
WgAddr: peerConfig.Address,
IFaceBlackList: config.IFaceBlackList,
DisableIPv6Discovery: config.DisableIPv6Discovery,
WgPrivateKey: key,
WgPort: config.WgPort,
SSHKey: []byte(config.SSHKey),
NATExternalIPs: config.NATExternalIPs,
}
if config.PreSharedKey != "" {
@@ -172,33 +222,99 @@ func connectToSignal(ctx context.Context, wtConfig *mgmProto.WiretrusteeConfig,
signalClient, err := signal.NewClient(ctx, wtConfig.Signal.Uri, ourPrivateKey, sigTLSEnabled)
if err != nil {
log.Errorf("error while connecting to the Signal Exchange Service %s: %s", wtConfig.Signal.Uri, err)
return nil, status.Errorf(codes.FailedPrecondition, "failed connecting to Signal Service : %s", err)
return nil, gstatus.Errorf(codes.FailedPrecondition, "failed connecting to Signal Service : %s", err)
}
return signalClient, nil
}
// connectToManagement creates Management Services client, establishes a connection, logs-in and gets a global Wiretrustee config (signal, turn, stun hosts, etc)
func connectToManagement(ctx context.Context, managementAddr string, ourPrivateKey wgtypes.Key, tlsEnabled bool) (*mgm.GrpcClient, *mgmProto.LoginResponse, error) {
log.Debugf("connecting to Management Service %s", managementAddr)
client, err := mgm.NewClient(ctx, managementAddr, ourPrivateKey, tlsEnabled)
if err != nil {
return nil, nil, status.Errorf(codes.FailedPrecondition, "failed connecting to Management Service : %s", err)
}
log.Debugf("connected to management server %s", managementAddr)
// loginToManagement creates Management Services client, establishes a connection, logs-in and gets a global Wiretrustee config (signal, turn, stun hosts, etc)
func loginToManagement(ctx context.Context, client mgm.Client, pubSSHKey []byte) (*mgmProto.LoginResponse, error) {
serverPublicKey, err := client.GetServerPublicKey()
if err != nil {
return nil, nil, status.Errorf(codes.FailedPrecondition, "failed while getting Management Service public key: %s", err)
return nil, gstatus.Errorf(codes.FailedPrecondition, "failed while getting Management Service public key: %s", err)
}
sysInfo := system.GetInfo(ctx)
loginResp, err := client.Login(*serverPublicKey, sysInfo)
loginResp, err := client.Login(*serverPublicKey, sysInfo, pubSSHKey)
if err != nil {
return nil, nil, err
return nil, err
}
log.Debugf("peer logged in to Management Service %s", managementAddr)
return client, loginResp, nil
return loginResp, nil
}
// ManagementLegacyPort is the port that was used before by the Management gRPC server.
// It is used for backward compatibility now.
// NB: hardcoded from github.com/netbirdio/netbird/management/cmd to avoid import
const ManagementLegacyPort = 33073
// UpdateOldManagementPort checks whether client can switch to the new Management port 443.
// If it can switch, then it updates the config and returns a new one. Otherwise, it returns the provided config.
// The check is performed only for the NetBird's managed version.
func UpdateOldManagementPort(ctx context.Context, config *Config, configPath string) (*Config, error) {
if config.ManagementURL.Hostname() != ManagementURLDefault().Hostname() {
// only do the check for the NetBird's managed version
return config, nil
}
var mgmTlsEnabled bool
if config.ManagementURL.Scheme == "https" {
mgmTlsEnabled = true
}
if !mgmTlsEnabled {
// only do the check for HTTPs scheme (the hosted version of the Management service is always HTTPs)
return config, nil
}
if mgmTlsEnabled && config.ManagementURL.Port() == fmt.Sprintf("%d", ManagementLegacyPort) {
newURL, err := ParseURL("Management URL", fmt.Sprintf("%s://%s:%d",
config.ManagementURL.Scheme, config.ManagementURL.Hostname(), 443))
if err != nil {
return nil, err
}
// here we check whether we could switch from the legacy 33073 port to the new 443
log.Infof("attempting to switch from the legacy Management URL %s to the new one %s",
config.ManagementURL.String(), newURL.String())
key, err := wgtypes.ParseKey(config.PrivateKey)
if err != nil {
log.Infof("couldn't switch to the new Management %s", newURL.String())
return config, err
}
client, err := mgm.NewClient(ctx, newURL.Host, key, mgmTlsEnabled)
if err != nil {
log.Infof("couldn't switch to the new Management %s", newURL.String())
return config, err
}
defer func() {
err = client.Close()
if err != nil {
log.Warnf("failed to close the Management service client %v", err)
}
}()
// gRPC check
_, err = client.GetServerPublicKey()
if err != nil {
log.Infof("couldn't switch to the new Management %s", newURL.String())
return nil, err
}
// everything is alright => update the config
newConfig, err := ReadConfig(newURL.String(), "", configPath, nil)
if err != nil {
log.Infof("couldn't switch to the new Management %s", newURL.String())
return config, fmt.Errorf("failed updating config file: %v", err)
}
log.Infof("successfully switched to the new Management URL: %s", newURL.String())
return newConfig, nil
}
return config, nil
}

View File

@@ -0,0 +1,41 @@
package dns
import (
"context"
"github.com/godbus/dbus/v5"
log "github.com/sirupsen/logrus"
"time"
)
const dbusDefaultFlag = 0
func isDbusListenerRunning(dest string, path dbus.ObjectPath) bool {
obj, closeConn, err := getDbusObject(dest, path)
if err != nil {
return false
}
defer closeConn()
ctx, cancel := context.WithTimeout(context.TODO(), 5*time.Second)
defer cancel()
err = obj.CallWithContext(ctx, "org.freedesktop.DBus.Peer.Ping", 0).Store()
return err == nil
}
func getDbusObject(dest string, path dbus.ObjectPath) (dbus.BusObject, func(), error) {
conn, err := dbus.SystemBus()
if err != nil {
return nil, nil, err
}
obj := conn.Object(dest, path)
closeFunc := func() {
closeErr := conn.Close()
if closeErr != nil {
log.Warnf("got an error closing dbus connection, err: %s", closeErr)
}
}
return obj, closeFunc, nil
}

View File

@@ -0,0 +1,154 @@
package dns
import (
"bytes"
"fmt"
log "github.com/sirupsen/logrus"
"os"
)
const (
fileGeneratedResolvConfContentHeader = "# Generated by NetBird"
fileGeneratedResolvConfSearchBeginContent = "search "
fileGeneratedResolvConfContentFormat = fileGeneratedResolvConfContentHeader +
"\n# If needed you can restore the original file by copying back %s\n\nnameserver %s\n" +
fileGeneratedResolvConfSearchBeginContent + "%s\n"
)
const (
fileDefaultResolvConfBackupLocation = defaultResolvConfPath + ".original.netbird"
fileMaxLineCharsLimit = 256
fileMaxNumberOfSearchDomains = 6
)
var fileSearchLineBeginCharCount = len(fileGeneratedResolvConfSearchBeginContent)
type fileConfigurator struct {
originalPerms os.FileMode
}
func newFileConfigurator() (hostManager, error) {
return &fileConfigurator{}, nil
}
func (f *fileConfigurator) applyDNSConfig(config hostDNSConfig) error {
backupFileExist := false
_, err := os.Stat(fileDefaultResolvConfBackupLocation)
if err == nil {
backupFileExist = true
}
if !config.routeAll {
if backupFileExist {
err = f.restore()
if err != nil {
return fmt.Errorf("unable to configure DNS for this peer using file manager without a Primary nameserver group. Restoring the original file return err: %s", err)
}
}
return fmt.Errorf("unable to configure DNS for this peer using file manager without a nameserver group with all domains configured")
}
managerType, err := getOSDNSManagerType()
if err != nil {
return err
}
switch managerType {
case fileManager, netbirdManager:
if !backupFileExist {
err = f.backup()
if err != nil {
return fmt.Errorf("unable to backup the resolv.conf file")
}
}
default:
// todo improve this and maybe restart DNS manager from scratch
return fmt.Errorf("something happened and file manager is not your prefered host dns configurator, restart the agent")
}
var searchDomains string
appendedDomains := 0
for _, dConf := range config.domains {
if dConf.matchOnly {
continue
}
if appendedDomains >= fileMaxNumberOfSearchDomains {
// lets log all skipped domains
log.Infof("already appended %d domains to search list. Skipping append of %s domain", fileMaxNumberOfSearchDomains, dConf.domain)
continue
}
if fileSearchLineBeginCharCount+len(searchDomains) > fileMaxLineCharsLimit {
// lets log all skipped domains
log.Infof("search list line is larger than %d characters. Skipping append of %s domain", fileMaxLineCharsLimit, dConf.domain)
continue
}
searchDomains += " " + dConf.domain
appendedDomains++
}
content := fmt.Sprintf(fileGeneratedResolvConfContentFormat, fileDefaultResolvConfBackupLocation, config.serverIP, searchDomains)
err = writeDNSConfig(content, defaultResolvConfPath, f.originalPerms)
if err != nil {
err = f.restore()
if err != nil {
log.Errorf("attempt to restore default file failed with error: %s", err)
}
return err
}
log.Infof("created a NetBird managed %s file with your DNS settings. Added %d search domains. Search list: %s", defaultResolvConfPath, appendedDomains, searchDomains)
return nil
}
func (f *fileConfigurator) restoreHostDNS() error {
return f.restore()
}
func (f *fileConfigurator) backup() error {
stats, err := os.Stat(defaultResolvConfPath)
if err != nil {
return fmt.Errorf("got an error while checking stats for %s file. Error: %s", defaultResolvConfPath, err)
}
f.originalPerms = stats.Mode()
err = copyFile(defaultResolvConfPath, fileDefaultResolvConfBackupLocation)
if err != nil {
return fmt.Errorf("got error while backing up the %s file. Error: %s", defaultResolvConfPath, err)
}
return nil
}
func (f *fileConfigurator) restore() error {
err := copyFile(fileDefaultResolvConfBackupLocation, defaultResolvConfPath)
if err != nil {
return fmt.Errorf("got error while restoring the %s file from %s. Error: %s", defaultResolvConfPath, fileDefaultResolvConfBackupLocation, err)
}
return os.RemoveAll(fileDefaultResolvConfBackupLocation)
}
func writeDNSConfig(content, fileName string, permissions os.FileMode) error {
log.Debugf("creating managed file %s", fileName)
var buf bytes.Buffer
buf.WriteString(content)
err := os.WriteFile(fileName, buf.Bytes(), permissions)
if err != nil {
return fmt.Errorf("got an creating resolver file %s. Error: %s", fileName, err)
}
return nil
}
func copyFile(src, dest string) error {
stats, err := os.Stat(src)
if err != nil {
return fmt.Errorf("got an error while checking stats for %s file when copying it. Error: %s", src, err)
}
bytesRead, err := os.ReadFile(src)
if err != nil {
return fmt.Errorf("got an error while reading the file %s file for copy. Error: %s", src, err)
}
err = os.WriteFile(dest, bytesRead, stats.Mode())
if err != nil {
return fmt.Errorf("got an writing the destination file %s for copy. Error: %s", dest, err)
}
return nil
}

View File

@@ -0,0 +1,79 @@
package dns
import (
"fmt"
nbdns "github.com/netbirdio/netbird/dns"
"strings"
)
type hostManager interface {
applyDNSConfig(config hostDNSConfig) error
restoreHostDNS() error
}
type hostDNSConfig struct {
domains []domainConfig
routeAll bool
serverIP string
serverPort int
}
type domainConfig struct {
domain string
matchOnly bool
}
type mockHostConfigurator struct {
applyDNSConfigFunc func(config hostDNSConfig) error
restoreHostDNSFunc func() error
}
func (m *mockHostConfigurator) applyDNSConfig(config hostDNSConfig) error {
if m.applyDNSConfigFunc != nil {
return m.applyDNSConfigFunc(config)
}
return fmt.Errorf("method applyDNSSettings is not implemented")
}
func (m *mockHostConfigurator) restoreHostDNS() error {
if m.restoreHostDNSFunc != nil {
return m.restoreHostDNSFunc()
}
return fmt.Errorf("method restoreHostDNS is not implemented")
}
func newNoopHostMocker() hostManager {
return &mockHostConfigurator{
applyDNSConfigFunc: func(config hostDNSConfig) error { return nil },
restoreHostDNSFunc: func() error { return nil },
}
}
func dnsConfigToHostDNSConfig(dnsConfig nbdns.Config, ip string, port int) hostDNSConfig {
config := hostDNSConfig{
routeAll: false,
serverIP: ip,
serverPort: port,
}
for _, nsConfig := range dnsConfig.NameServerGroups {
if nsConfig.Primary {
config.routeAll = true
}
for _, domain := range nsConfig.Domains {
config.domains = append(config.domains, domainConfig{
domain: strings.TrimSuffix(domain, "."),
matchOnly: true,
})
}
}
for _, customZone := range dnsConfig.CustomZones {
config.domains = append(config.domains, domainConfig{
domain: strings.TrimSuffix(customZone.Domain, "."),
matchOnly: false,
})
}
return config
}

View File

@@ -0,0 +1,259 @@
package dns
import (
"bufio"
"bytes"
"fmt"
"github.com/netbirdio/netbird/iface"
log "github.com/sirupsen/logrus"
"os/exec"
"strconv"
"strings"
)
const (
netbirdDNSStateKeyFormat = "State:/Network/Service/NetBird-%s/DNS"
globalIPv4State = "State:/Network/Global/IPv4"
primaryServiceSetupKeyFormat = "Setup:/Network/Service/%s/DNS"
keySupplementalMatchDomains = "SupplementalMatchDomains"
keySupplementalMatchDomainsNoSearch = "SupplementalMatchDomainsNoSearch"
keyServerAddresses = "ServerAddresses"
keyServerPort = "ServerPort"
arraySymbol = "* "
digitSymbol = "# "
scutilPath = "/usr/sbin/scutil"
searchSuffix = "Search"
matchSuffix = "Match"
)
type systemConfigurator struct {
// primaryServiceID primary interface in the system. AKA the interface with the default route
primaryServiceID string
createdKeys map[string]struct{}
}
func newHostManager(_ *iface.WGIface) (hostManager, error) {
return &systemConfigurator{
createdKeys: make(map[string]struct{}),
}, nil
}
func (s *systemConfigurator) applyDNSConfig(config hostDNSConfig) error {
var err error
if config.routeAll {
err = s.addDNSSetupForAll(config.serverIP, config.serverPort)
if err != nil {
return err
}
} else if s.primaryServiceID != "" {
err = s.removeKeyFromSystemConfig(getKeyWithInput(primaryServiceSetupKeyFormat, s.primaryServiceID))
if err != nil {
return err
}
s.primaryServiceID = ""
log.Infof("removed %s:%d as main DNS resolver for this peer", config.serverIP, config.serverPort)
}
var (
searchDomains []string
matchDomains []string
)
for _, dConf := range config.domains {
if dConf.matchOnly {
matchDomains = append(matchDomains, dConf.domain)
continue
}
searchDomains = append(searchDomains, dConf.domain)
}
matchKey := getKeyWithInput(netbirdDNSStateKeyFormat, matchSuffix)
if len(matchDomains) != 0 {
err = s.addMatchDomains(matchKey, strings.Join(matchDomains, " "), config.serverIP, config.serverPort)
} else {
log.Infof("removing match domains from the system")
err = s.removeKeyFromSystemConfig(matchKey)
}
if err != nil {
return err
}
searchKey := getKeyWithInput(netbirdDNSStateKeyFormat, searchSuffix)
if len(searchDomains) != 0 {
err = s.addSearchDomains(searchKey, strings.Join(searchDomains, " "), config.serverIP, config.serverPort)
} else {
log.Infof("removing search domains from the system")
err = s.removeKeyFromSystemConfig(searchKey)
}
if err != nil {
return err
}
return nil
}
func (s *systemConfigurator) restoreHostDNS() error {
lines := ""
for key := range s.createdKeys {
lines += buildRemoveKeyOperation(key)
keyType := "search"
if strings.Contains(key, matchSuffix) {
keyType = "match"
}
log.Infof("removing %s domains from system", keyType)
}
if s.primaryServiceID != "" {
lines += buildRemoveKeyOperation(getKeyWithInput(primaryServiceSetupKeyFormat, s.primaryServiceID))
log.Infof("restoring DNS resolver configuration for system")
}
_, err := runSystemConfigCommand(wrapCommand(lines))
if err != nil {
log.Errorf("got an error while cleaning the system configuration: %s", err)
return err
}
return nil
}
func (s *systemConfigurator) removeKeyFromSystemConfig(key string) error {
line := buildRemoveKeyOperation(key)
_, err := runSystemConfigCommand(wrapCommand(line))
if err != nil {
return err
}
delete(s.createdKeys, key)
return nil
}
func (s *systemConfigurator) addSearchDomains(key, domains string, ip string, port int) error {
err := s.addDNSState(key, domains, ip, port, true)
if err != nil {
return err
}
log.Infof("added %d search domains to the state. Domain list: %s", len(strings.Split(domains, " ")), domains)
s.createdKeys[key] = struct{}{}
return nil
}
func (s *systemConfigurator) addMatchDomains(key, domains, dnsServer string, port int) error {
err := s.addDNSState(key, domains, dnsServer, port, false)
if err != nil {
return err
}
log.Infof("added %d match domains to the state. Domain list: %s", len(strings.Split(domains, " ")), domains)
s.createdKeys[key] = struct{}{}
return nil
}
func (s *systemConfigurator) addDNSState(state, domains, dnsServer string, port int, enableSearch bool) error {
noSearch := "1"
if enableSearch {
noSearch = "0"
}
lines := buildAddCommandLine(keySupplementalMatchDomains, arraySymbol+domains)
lines += buildAddCommandLine(keySupplementalMatchDomainsNoSearch, digitSymbol+noSearch)
lines += buildAddCommandLine(keyServerAddresses, arraySymbol+dnsServer)
lines += buildAddCommandLine(keyServerPort, digitSymbol+strconv.Itoa(port))
addDomainCommand := buildCreateStateWithOperation(state, lines)
stdinCommands := wrapCommand(addDomainCommand)
_, err := runSystemConfigCommand(stdinCommands)
if err != nil {
return fmt.Errorf("got error while applying state for domains %s, error: %s", domains, err)
}
return nil
}
func (s *systemConfigurator) addDNSSetupForAll(dnsServer string, port int) error {
primaryServiceKey := s.getPrimaryService()
if primaryServiceKey == "" {
return fmt.Errorf("couldn't find the primary service key")
}
err := s.addDNSSetup(getKeyWithInput(primaryServiceSetupKeyFormat, primaryServiceKey), dnsServer, port)
if err != nil {
return err
}
log.Infof("configured %s:%d as main DNS resolver for this peer", dnsServer, port)
s.primaryServiceID = primaryServiceKey
return nil
}
func (s *systemConfigurator) getPrimaryService() string {
line := buildCommandLine("show", globalIPv4State, "")
stdinCommands := wrapCommand(line)
b, err := runSystemConfigCommand(stdinCommands)
if err != nil {
log.Error("got error while sending the command: ", err)
return ""
}
scanner := bufio.NewScanner(bytes.NewReader(b))
for scanner.Scan() {
text := scanner.Text()
if strings.Contains(text, "PrimaryService") {
return strings.TrimSpace(strings.Split(text, ":")[1])
}
}
return ""
}
func (s *systemConfigurator) addDNSSetup(setupKey, dnsServer string, port int) error {
lines := buildAddCommandLine(keySupplementalMatchDomainsNoSearch, digitSymbol+strconv.Itoa(0))
lines += buildAddCommandLine(keyServerAddresses, arraySymbol+dnsServer)
lines += buildAddCommandLine(keyServerPort, digitSymbol+strconv.Itoa(port))
addDomainCommand := buildCreateStateWithOperation(setupKey, lines)
stdinCommands := wrapCommand(addDomainCommand)
_, err := runSystemConfigCommand(stdinCommands)
if err != nil {
return fmt.Errorf("got error while applying dns setup, error: %s", err)
}
return nil
}
func getKeyWithInput(format, key string) string {
return fmt.Sprintf(format, key)
}
func buildAddCommandLine(key, value string) string {
return buildCommandLine("d.add", key, value)
}
func buildCommandLine(action, key, value string) string {
return fmt.Sprintf("%s %s %s\n", action, key, value)
}
func wrapCommand(commands string) string {
return fmt.Sprintf("open\n%s\nquit\n", commands)
}
func buildRemoveKeyOperation(key string) string {
return fmt.Sprintf("remove %s\n", key)
}
func buildCreateStateWithOperation(state, commands string) string {
return buildWriteStateOperation("set", state, commands)
}
func buildWriteStateOperation(operation, state, commands string) string {
return fmt.Sprintf("d.init\n%s %s\n%s\nset %s\n", operation, state, commands, state)
}
func runSystemConfigCommand(command string) ([]byte, error) {
cmd := exec.Command(scutilPath)
cmd.Stdin = strings.NewReader(command)
out, err := cmd.Output()
if err != nil {
return nil, fmt.Errorf("got error while running system configuration command: \"%s\", error: %s", command, err)
}
return out, nil
}

View File

@@ -0,0 +1,87 @@
package dns
import (
"bufio"
"fmt"
"github.com/netbirdio/netbird/iface"
log "github.com/sirupsen/logrus"
"os"
"strings"
)
const (
defaultResolvConfPath = "/etc/resolv.conf"
)
const (
netbirdManager osManagerType = iota
fileManager
networkManager
systemdManager
resolvConfManager
)
type osManagerType int
func newHostManager(wgInterface *iface.WGIface) (hostManager, error) {
osManager, err := getOSDNSManagerType()
if err != nil {
return nil, err
}
log.Debugf("discovered mode is: %d", osManager)
switch osManager {
case networkManager:
return newNetworkManagerDbusConfigurator(wgInterface)
case systemdManager:
return newSystemdDbusConfigurator(wgInterface)
case resolvConfManager:
return newResolvConfConfigurator(wgInterface)
default:
return newFileConfigurator()
}
}
func getOSDNSManagerType() (osManagerType, error) {
file, err := os.Open(defaultResolvConfPath)
if err != nil {
return 0, fmt.Errorf("unable to open %s for checking owner, got error: %s", defaultResolvConfPath, err)
}
defer file.Close()
scanner := bufio.NewScanner(file)
for scanner.Scan() {
text := scanner.Text()
if len(text) == 0 {
continue
}
if text[0] != '#' {
return fileManager, nil
}
if strings.Contains(text, fileGeneratedResolvConfContentHeader) {
return netbirdManager, nil
}
if strings.Contains(text, "NetworkManager") && isDbusListenerRunning(networkManagerDest, networkManagerDbusObjectNode) && isNetworkManagerSupported() {
log.Debugf("is nm running on supported v? %t", isNetworkManagerSupportedVersion())
return networkManager, nil
}
if strings.Contains(text, "systemd-resolved") && isDbusListenerRunning(systemdResolvedDest, systemdDbusObjectNode) {
return systemdManager, nil
}
if strings.Contains(text, "resolvconf") {
if isDbusListenerRunning(systemdResolvedDest, systemdDbusObjectNode) {
var value string
err = getSystemdDbusProperty(systemdDbusResolvConfModeProperty, &value)
if err == nil {
if value == systemdDbusResolvConfModeForeign {
return systemdManager, nil
}
}
log.Errorf("got an error while checking systemd resolv conf mode, error: %s", err)
}
return resolvConfManager, nil
}
}
return fileManager, nil
}

View File

@@ -0,0 +1,260 @@
package dns
import (
"fmt"
"github.com/netbirdio/netbird/iface"
log "github.com/sirupsen/logrus"
"golang.org/x/sys/windows/registry"
"strings"
)
const (
dnsPolicyConfigMatchPath = "SYSTEM\\CurrentControlSet\\Services\\Dnscache\\Parameters\\DnsPolicyConfig\\NetBird-Match"
dnsPolicyConfigVersionKey = "Version"
dnsPolicyConfigVersionValue = 2
dnsPolicyConfigNameKey = "Name"
dnsPolicyConfigGenericDNSServersKey = "GenericDNSServers"
dnsPolicyConfigConfigOptionsKey = "ConfigOptions"
dnsPolicyConfigConfigOptionsValue = 0x8
)
const (
interfaceConfigPath = "SYSTEM\\CurrentControlSet\\Services\\Tcpip\\Parameters\\Interfaces"
interfaceConfigNameServerKey = "NameServer"
interfaceConfigSearchListKey = "SearchList"
tcpipParametersPath = "SYSTEM\\CurrentControlSet\\Services\\Tcpip\\Parameters"
)
type registryConfigurator struct {
guid string
routingAll bool
existingSearchDomains []string
}
func newHostManager(wgInterface *iface.WGIface) (hostManager, error) {
guid, err := wgInterface.GetInterfaceGUIDString()
if err != nil {
return nil, err
}
return &registryConfigurator{
guid: guid,
}, nil
}
func (r *registryConfigurator) applyDNSConfig(config hostDNSConfig) error {
var err error
if config.routeAll {
err = r.addDNSSetupForAll(config.serverIP)
if err != nil {
return err
}
} else if r.routingAll {
err = r.deleteInterfaceRegistryKeyProperty(interfaceConfigNameServerKey)
if err != nil {
return err
}
r.routingAll = false
log.Infof("removed %s as main DNS forwarder for this peer", config.serverIP)
}
var (
searchDomains []string
matchDomains []string
)
for _, dConf := range config.domains {
if !dConf.matchOnly {
searchDomains = append(searchDomains, dConf.domain)
}
matchDomains = append(matchDomains, "."+dConf.domain)
}
if len(matchDomains) != 0 {
err = r.addDNSMatchPolicy(matchDomains, config.serverIP)
} else {
err = removeRegistryKeyFromDNSPolicyConfig(dnsPolicyConfigMatchPath)
}
if err != nil {
return err
}
err = r.updateSearchDomains(searchDomains)
if err != nil {
return err
}
return nil
}
func (r *registryConfigurator) addDNSSetupForAll(ip string) error {
err := r.setInterfaceRegistryKeyStringValue(interfaceConfigNameServerKey, ip)
if err != nil {
return fmt.Errorf("adding dns setup for all failed with error: %s", err)
}
r.routingAll = true
log.Infof("configured %s:53 as main DNS forwarder for this peer", ip)
return nil
}
func (r *registryConfigurator) addDNSMatchPolicy(domains []string, ip string) error {
_, err := registry.OpenKey(registry.LOCAL_MACHINE, dnsPolicyConfigMatchPath, registry.QUERY_VALUE)
if err == nil {
err = registry.DeleteKey(registry.LOCAL_MACHINE, dnsPolicyConfigMatchPath)
if err != nil {
return fmt.Errorf("unable to remove existing key from registry, key: HKEY_LOCAL_MACHINE\\%s, error: %s", dnsPolicyConfigMatchPath, err)
}
}
regKey, _, err := registry.CreateKey(registry.LOCAL_MACHINE, dnsPolicyConfigMatchPath, registry.SET_VALUE)
if err != nil {
return fmt.Errorf("unable to create registry key, key: HKEY_LOCAL_MACHINE\\%s, error: %s", dnsPolicyConfigMatchPath, err)
}
err = regKey.SetDWordValue(dnsPolicyConfigVersionKey, dnsPolicyConfigVersionValue)
if err != nil {
return fmt.Errorf("unable to set registry value for %s, error: %s", dnsPolicyConfigVersionKey, err)
}
err = regKey.SetStringsValue(dnsPolicyConfigNameKey, domains)
if err != nil {
return fmt.Errorf("unable to set registry value for %s, error: %s", dnsPolicyConfigNameKey, err)
}
err = regKey.SetStringValue(dnsPolicyConfigGenericDNSServersKey, ip)
if err != nil {
return fmt.Errorf("unable to set registry value for %s, error: %s", dnsPolicyConfigGenericDNSServersKey, err)
}
err = regKey.SetDWordValue(dnsPolicyConfigConfigOptionsKey, dnsPolicyConfigConfigOptionsValue)
if err != nil {
return fmt.Errorf("unable to set registry value for %s, error: %s", dnsPolicyConfigConfigOptionsKey, err)
}
log.Infof("added %d match domains to the state. Domain list: %s", len(domains), domains)
return nil
}
func (r *registryConfigurator) restoreHostDNS() error {
err := removeRegistryKeyFromDNSPolicyConfig(dnsPolicyConfigMatchPath)
if err != nil {
log.Error(err)
}
return r.updateSearchDomains([]string{})
}
func (r *registryConfigurator) updateSearchDomains(domains []string) error {
value, err := getLocalMachineRegistryKeyStringValue(tcpipParametersPath, interfaceConfigSearchListKey)
if err != nil {
return fmt.Errorf("unable to get current search domains failed with error: %s", err)
}
valueList := strings.Split(value, ",")
setExisting := false
if len(r.existingSearchDomains) == 0 {
r.existingSearchDomains = valueList
setExisting = true
}
if len(domains) == 0 && setExisting {
log.Infof("added %d search domains to the registry. Domain list: %s", len(domains), domains)
return nil
}
newList := append(r.existingSearchDomains, domains...)
err = setLocalMachineRegistryKeyStringValue(tcpipParametersPath, interfaceConfigSearchListKey, strings.Join(newList, ","))
if err != nil {
return fmt.Errorf("adding search domain failed with error: %s", err)
}
log.Infof("updated the search domains in the registry with %d domains. Domain list: %s", len(domains), domains)
return nil
}
func (r *registryConfigurator) setInterfaceRegistryKeyStringValue(key, value string) error {
regKey, err := r.getInterfaceRegistryKey()
if err != nil {
return err
}
defer regKey.Close()
err = regKey.SetStringValue(key, value)
if err != nil {
return fmt.Errorf("applying key %s with value \"%s\" for interface failed with error: %s", key, value, err)
}
return nil
}
func (r *registryConfigurator) deleteInterfaceRegistryKeyProperty(propertyKey string) error {
regKey, err := r.getInterfaceRegistryKey()
if err != nil {
return err
}
defer regKey.Close()
err = regKey.DeleteValue(propertyKey)
if err != nil {
return fmt.Errorf("deleting registry key %s for interface failed with error: %s", propertyKey, err)
}
return nil
}
func (r *registryConfigurator) getInterfaceRegistryKey() (registry.Key, error) {
var regKey registry.Key
regKeyPath := interfaceConfigPath + "\\" + r.guid
regKey, err := registry.OpenKey(registry.LOCAL_MACHINE, regKeyPath, registry.SET_VALUE)
if err != nil {
return regKey, fmt.Errorf("unable to open the interface registry key, key: HKEY_LOCAL_MACHINE\\%s, error: %s", regKeyPath, err)
}
return regKey, nil
}
func removeRegistryKeyFromDNSPolicyConfig(regKeyPath string) error {
k, err := registry.OpenKey(registry.LOCAL_MACHINE, regKeyPath, registry.QUERY_VALUE)
if err == nil {
k.Close()
err = registry.DeleteKey(registry.LOCAL_MACHINE, regKeyPath)
if err != nil {
return fmt.Errorf("unable to remove existing key from registry, key: HKEY_LOCAL_MACHINE\\%s, error: %s", regKeyPath, err)
}
}
return nil
}
func getLocalMachineRegistryKeyStringValue(keyPath, key string) (string, error) {
regKey, err := registry.OpenKey(registry.LOCAL_MACHINE, keyPath, registry.QUERY_VALUE)
if err != nil {
return "", fmt.Errorf("unable to open existing key from registry, key path: HKEY_LOCAL_MACHINE\\%s, error: %s", keyPath, err)
}
defer regKey.Close()
val, _, err := regKey.GetStringValue(key)
if err != nil {
return "", fmt.Errorf("getting %s value for key path HKEY_LOCAL_MACHINE\\%s failed with error: %s", key, keyPath, err)
}
return val, nil
}
func setLocalMachineRegistryKeyStringValue(keyPath, key, value string) error {
regKey, err := registry.OpenKey(registry.LOCAL_MACHINE, keyPath, registry.SET_VALUE)
if err != nil {
return fmt.Errorf("unable to open existing key from registry, key path: HKEY_LOCAL_MACHINE\\%s, error: %s", keyPath, err)
}
defer regKey.Close()
err = regKey.SetStringValue(key, value)
if err != nil {
return fmt.Errorf("setting %s value %s for key path HKEY_LOCAL_MACHINE\\%s failed with error: %s", key, value, keyPath, err)
}
return nil
}

View File

@@ -0,0 +1,66 @@
package dns
import (
"fmt"
"github.com/miekg/dns"
nbdns "github.com/netbirdio/netbird/dns"
log "github.com/sirupsen/logrus"
"sync"
)
type localResolver struct {
registeredMap registrationMap
records sync.Map
}
// ServeDNS handles a DNS request
func (d *localResolver) ServeDNS(w dns.ResponseWriter, r *dns.Msg) {
log.Tracef("received question: %#v\n", r.Question[0])
replyMessage := &dns.Msg{}
replyMessage.SetReply(r)
replyMessage.RecursionAvailable = true
replyMessage.Rcode = dns.RcodeSuccess
response := d.lookupRecord(r)
if response != nil {
replyMessage.Answer = append(replyMessage.Answer, response)
}
err := w.WriteMsg(replyMessage)
if err != nil {
log.Debugf("got an error while writing the local resolver response, error: %v", err)
}
}
func (d *localResolver) lookupRecord(r *dns.Msg) dns.RR {
question := r.Question[0]
record, found := d.records.Load(buildRecordKey(question.Name, question.Qclass, question.Qtype))
if !found {
return nil
}
return record.(dns.RR)
}
func (d *localResolver) registerRecord(record nbdns.SimpleRecord) error {
fullRecord, err := dns.NewRR(record.String())
if err != nil {
return err
}
fullRecord.Header().Rdlength = record.Len()
header := fullRecord.Header()
d.records.Store(buildRecordKey(header.Name, header.Class, header.Rrtype), fullRecord)
return nil
}
func (d *localResolver) deleteRecord(recordKey string) {
d.records.Delete(dns.Fqdn(recordKey))
}
func buildRecordKey(name string, class, qType uint16) string {
key := fmt.Sprintf("%s_%d_%d", name, class, qType)
return key
}

View File

@@ -0,0 +1,86 @@
package dns
import (
"github.com/miekg/dns"
nbdns "github.com/netbirdio/netbird/dns"
"strings"
"testing"
)
func TestLocalResolver_ServeDNS(t *testing.T) {
recordA := nbdns.SimpleRecord{
Name: "peera.netbird.cloud.",
Type: 1,
Class: nbdns.DefaultClass,
TTL: 300,
RData: "1.2.3.4",
}
recordCNAME := nbdns.SimpleRecord{
Name: "peerb.netbird.cloud.",
Type: 5,
Class: nbdns.DefaultClass,
TTL: 300,
RData: "www.netbird.io",
}
testCases := []struct {
name string
inputRecord nbdns.SimpleRecord
inputMSG *dns.Msg
responseShouldBeNil bool
}{
{
name: "Should Resolve A Record",
inputRecord: recordA,
inputMSG: new(dns.Msg).SetQuestion(recordA.Name, dns.TypeA),
},
{
name: "Should Resolve CNAME Record",
inputRecord: recordCNAME,
inputMSG: new(dns.Msg).SetQuestion(recordCNAME.Name, dns.TypeCNAME),
},
{
name: "Should Not Write When Not Found A Record",
inputRecord: recordA,
inputMSG: new(dns.Msg).SetQuestion("not.found.com", dns.TypeA),
responseShouldBeNil: true,
},
}
for _, testCase := range testCases {
t.Run(testCase.name, func(t *testing.T) {
resolver := &localResolver{
registeredMap: make(registrationMap),
}
_ = resolver.registerRecord(testCase.inputRecord)
var responseMSG *dns.Msg
responseWriter := &mockResponseWriter{
WriteMsgFunc: func(m *dns.Msg) error {
responseMSG = m
return nil
},
}
resolver.ServeDNS(responseWriter, testCase.inputMSG)
if responseMSG == nil || len(responseMSG.Answer) == 0 {
if testCase.responseShouldBeNil {
return
}
t.Fatalf("should write a response message")
}
answerString := responseMSG.Answer[0].String()
if !strings.Contains(answerString, testCase.inputRecord.Name) {
t.Fatalf("answer doesn't contain the same domain name: \nWant: %s\nGot:%s", testCase.name, answerString)
}
if !strings.Contains(answerString, dns.Type(testCase.inputRecord.Type).String()) {
t.Fatalf("answer doesn't contain the correct type: \nWant: %s\nGot:%s", dns.Type(testCase.inputRecord.Type).String(), answerString)
}
if !strings.Contains(answerString, testCase.inputRecord.RData) {
t.Fatalf("answer doesn't contain the same address: \nWant: %s\nGot:%s", testCase.inputRecord.RData, answerString)
}
})
}
}

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package dns
import (
"fmt"
nbdns "github.com/netbirdio/netbird/dns"
)
// MockServer is the mock instance of a dns server
type MockServer struct {
StartFunc func()
StopFunc func()
UpdateDNSServerFunc func(serial uint64, update nbdns.Config) error
}
// Start mock implementation of Start from Server interface
func (m *MockServer) Start() {
if m.StartFunc != nil {
m.StartFunc()
}
}
// Stop mock implementation of Stop from Server interface
func (m *MockServer) Stop() {
if m.StopFunc != nil {
m.StopFunc()
}
}
// UpdateDNSServer mock implementation of UpdateDNSServer from Server interface
func (m *MockServer) UpdateDNSServer(serial uint64, update nbdns.Config) error {
if m.UpdateDNSServerFunc != nil {
return m.UpdateDNSServerFunc(serial, update)
}
return fmt.Errorf("method UpdateDNSServer is not implemented")
}

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@@ -0,0 +1,25 @@
package dns
import (
"github.com/miekg/dns"
"net"
)
type mockResponseWriter struct {
WriteMsgFunc func(m *dns.Msg) error
}
func (rw *mockResponseWriter) WriteMsg(m *dns.Msg) error {
if rw.WriteMsgFunc != nil {
return rw.WriteMsgFunc(m)
}
return nil
}
func (rw *mockResponseWriter) LocalAddr() net.Addr { return nil }
func (rw *mockResponseWriter) RemoteAddr() net.Addr { return nil }
func (rw *mockResponseWriter) Write([]byte) (int, error) { return 0, nil }
func (rw *mockResponseWriter) Close() error { return nil }
func (rw *mockResponseWriter) TsigStatus() error { return nil }
func (rw *mockResponseWriter) TsigTimersOnly(bool) {}
func (rw *mockResponseWriter) Hijack() {}

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package dns
import (
"context"
"encoding/binary"
"fmt"
"github.com/godbus/dbus/v5"
"github.com/hashicorp/go-version"
"github.com/miekg/dns"
"github.com/netbirdio/netbird/iface"
log "github.com/sirupsen/logrus"
"net/netip"
"regexp"
"time"
)
const (
networkManagerDest = "org.freedesktop.NetworkManager"
networkManagerDbusObjectNode = "/org/freedesktop/NetworkManager"
networkManagerDbusDNSManagerInterface = "org.freedesktop.NetworkManager.DnsManager"
networkManagerDbusDNSManagerObjectNode = networkManagerDbusObjectNode + "/DnsManager"
networkManagerDbusDNSManagerModeProperty = networkManagerDbusDNSManagerInterface + ".Mode"
networkManagerDbusDNSManagerRcManagerProperty = networkManagerDbusDNSManagerInterface + ".RcManager"
networkManagerDbusVersionProperty = "org.freedesktop.NetworkManager.Version"
networkManagerDbusGetDeviceByIPIfaceMethod = networkManagerDest + ".GetDeviceByIpIface"
networkManagerDbusDeviceInterface = "org.freedesktop.NetworkManager.Device"
networkManagerDbusDeviceGetAppliedConnectionMethod = networkManagerDbusDeviceInterface + ".GetAppliedConnection"
networkManagerDbusDeviceReapplyMethod = networkManagerDbusDeviceInterface + ".Reapply"
networkManagerDbusDeviceDeleteMethod = networkManagerDbusDeviceInterface + ".Delete"
networkManagerDbusDefaultBehaviorFlag networkManagerConfigBehavior = 0
networkManagerDbusIPv4Key = "ipv4"
networkManagerDbusIPv6Key = "ipv6"
networkManagerDbusDNSKey = "dns"
networkManagerDbusDNSSearchKey = "dns-search"
networkManagerDbusDNSPriorityKey = "dns-priority"
// dns priority doc https://wiki.gnome.org/Projects/NetworkManager/DNS
networkManagerDbusPrimaryDNSPriority int32 = -500
networkManagerDbusWithMatchDomainPriority int32 = 0
networkManagerDbusSearchDomainOnlyPriority int32 = 50
supportedNetworkManagerVersionConstraint = ">= 1.16, < 1.28"
)
type networkManagerDbusConfigurator struct {
dbusLinkObject dbus.ObjectPath
routingAll bool
}
// the types below are based on dbus specification, each field is mapped to a dbus type
// see https://dbus.freedesktop.org/doc/dbus-specification.html#basic-types for more details on dbus types
// see https://networkmanager.dev/docs/api/latest/gdbus-org.freedesktop.NetworkManager.Device.html on Network Manager input types
// networkManagerConnSettings maps to a (a{sa{sv}}) dbus output from GetAppliedConnection and input for Reapply methods
type networkManagerConnSettings map[string]map[string]dbus.Variant
// networkManagerConfigVersion maps to a (t) dbus output from GetAppliedConnection and input for Reapply methods
type networkManagerConfigVersion uint64
// networkManagerConfigBehavior maps to a (u) dbus input for GetAppliedConnection and Reapply methods
type networkManagerConfigBehavior uint32
// cleanDeprecatedSettings cleans deprecated settings that still returned by
// the GetAppliedConnection methods but can't be reApplied
func (s networkManagerConnSettings) cleanDeprecatedSettings() {
for _, key := range []string{"addresses", "routes"} {
delete(s[networkManagerDbusIPv4Key], key)
delete(s[networkManagerDbusIPv6Key], key)
}
}
func newNetworkManagerDbusConfigurator(wgInterface *iface.WGIface) (hostManager, error) {
obj, closeConn, err := getDbusObject(networkManagerDest, networkManagerDbusObjectNode)
if err != nil {
return nil, err
}
defer closeConn()
var s string
err = obj.Call(networkManagerDbusGetDeviceByIPIfaceMethod, dbusDefaultFlag, wgInterface.GetName()).Store(&s)
if err != nil {
return nil, err
}
log.Debugf("got network manager dbus Link Object: %s from net interface %s", s, wgInterface.GetName())
return &networkManagerDbusConfigurator{
dbusLinkObject: dbus.ObjectPath(s),
}, nil
}
func (n *networkManagerDbusConfigurator) applyDNSConfig(config hostDNSConfig) error {
connSettings, configVersion, err := n.getAppliedConnectionSettings()
if err != nil {
return fmt.Errorf("got an error while retrieving the applied connection settings, error: %s", err)
}
connSettings.cleanDeprecatedSettings()
dnsIP := netip.MustParseAddr(config.serverIP)
convDNSIP := binary.LittleEndian.Uint32(dnsIP.AsSlice())
connSettings[networkManagerDbusIPv4Key][networkManagerDbusDNSKey] = dbus.MakeVariant([]uint32{convDNSIP})
var (
searchDomains []string
matchDomains []string
)
for _, dConf := range config.domains {
if dConf.matchOnly {
matchDomains = append(matchDomains, "~."+dns.Fqdn(dConf.domain))
continue
}
searchDomains = append(searchDomains, dns.Fqdn(dConf.domain))
}
newDomainList := append(searchDomains, matchDomains...)
priority := networkManagerDbusSearchDomainOnlyPriority
switch {
case config.routeAll:
priority = networkManagerDbusPrimaryDNSPriority
newDomainList = append(newDomainList, "~.")
if !n.routingAll {
log.Infof("configured %s:%d as main DNS forwarder for this peer", config.serverIP, config.serverPort)
}
case len(matchDomains) > 0:
priority = networkManagerDbusWithMatchDomainPriority
}
if priority != networkManagerDbusPrimaryDNSPriority && n.routingAll {
log.Infof("removing %s:%d as main DNS forwarder for this peer", config.serverIP, config.serverPort)
n.routingAll = false
}
connSettings[networkManagerDbusIPv4Key][networkManagerDbusDNSPriorityKey] = dbus.MakeVariant(priority)
connSettings[networkManagerDbusIPv4Key][networkManagerDbusDNSSearchKey] = dbus.MakeVariant(newDomainList)
log.Infof("adding %d search domains and %d match domains. Search list: %s , Match list: %s", len(searchDomains), len(matchDomains), searchDomains, matchDomains)
err = n.reApplyConnectionSettings(connSettings, configVersion)
if err != nil {
return fmt.Errorf("got an error while reapplying the connection with new settings, error: %s", err)
}
return nil
}
func (n *networkManagerDbusConfigurator) restoreHostDNS() error {
// once the interface is gone network manager cleans all config associated with it
return n.deleteConnectionSettings()
}
func (n *networkManagerDbusConfigurator) getAppliedConnectionSettings() (networkManagerConnSettings, networkManagerConfigVersion, error) {
obj, closeConn, err := getDbusObject(networkManagerDest, n.dbusLinkObject)
if err != nil {
return nil, 0, fmt.Errorf("got error while attempting to retrieve the applied connection settings, err: %s", err)
}
defer closeConn()
ctx, cancel := context.WithTimeout(context.TODO(), 5*time.Second)
defer cancel()
var (
connSettings networkManagerConnSettings
configVersion networkManagerConfigVersion
)
err = obj.CallWithContext(ctx, networkManagerDbusDeviceGetAppliedConnectionMethod, dbusDefaultFlag,
networkManagerDbusDefaultBehaviorFlag).Store(&connSettings, &configVersion)
if err != nil {
return nil, 0, fmt.Errorf("got error while calling GetAppliedConnection method with context, err: %s", err)
}
return connSettings, configVersion, nil
}
func (n *networkManagerDbusConfigurator) reApplyConnectionSettings(connSettings networkManagerConnSettings, configVersion networkManagerConfigVersion) error {
obj, closeConn, err := getDbusObject(networkManagerDest, n.dbusLinkObject)
if err != nil {
return fmt.Errorf("got error while attempting to retrieve the applied connection settings, err: %s", err)
}
defer closeConn()
ctx, cancel := context.WithTimeout(context.TODO(), 5*time.Second)
defer cancel()
err = obj.CallWithContext(ctx, networkManagerDbusDeviceReapplyMethod, dbusDefaultFlag,
connSettings, configVersion, networkManagerDbusDefaultBehaviorFlag).Store()
if err != nil {
return fmt.Errorf("got error while calling ReApply method with context, err: %s", err)
}
return nil
}
func (n *networkManagerDbusConfigurator) deleteConnectionSettings() error {
obj, closeConn, err := getDbusObject(networkManagerDest, n.dbusLinkObject)
if err != nil {
return fmt.Errorf("got error while attempting to retrieve the applied connection settings, err: %s", err)
}
defer closeConn()
ctx, cancel := context.WithTimeout(context.TODO(), 5*time.Second)
defer cancel()
err = obj.CallWithContext(ctx, networkManagerDbusDeviceDeleteMethod, dbusDefaultFlag).Store()
if err != nil {
return fmt.Errorf("got error while calling delete method with context, err: %s", err)
}
return nil
}
func isNetworkManagerSupported() bool {
return isNetworkManagerSupportedVersion() && isNetworkManagerSupportedMode()
}
func isNetworkManagerSupportedMode() bool {
var mode string
err := getNetworkManagerDNSProperty(networkManagerDbusDNSManagerModeProperty, &mode)
if err != nil {
log.Error(err)
return false
}
switch mode {
case "dnsmasq", "unbound", "systemd-resolved":
return true
default:
var rcManager string
err = getNetworkManagerDNSProperty(networkManagerDbusDNSManagerRcManagerProperty, &rcManager)
if err != nil {
log.Error(err)
return false
}
if rcManager == "unmanaged" {
return false
}
}
return true
}
func getNetworkManagerDNSProperty(property string, store any) error {
obj, closeConn, err := getDbusObject(networkManagerDest, networkManagerDbusDNSManagerObjectNode)
if err != nil {
return fmt.Errorf("got error while attempting to retrieve the network manager dns manager object, error: %s", err)
}
defer closeConn()
v, e := obj.GetProperty(property)
if e != nil {
return fmt.Errorf("got an error getting property %s: %v", property, e)
}
return v.Store(store)
}
func isNetworkManagerSupportedVersion() bool {
obj, closeConn, err := getDbusObject(networkManagerDest, networkManagerDbusObjectNode)
if err != nil {
log.Errorf("got error while attempting to get the network manager object, err: %s", err)
return false
}
defer closeConn()
value, err := obj.GetProperty(networkManagerDbusVersionProperty)
if err != nil {
log.Errorf("unable to retrieve network manager mode, got error: %s", err)
return false
}
versionValue, err := parseVersion(value.Value().(string))
if err != nil {
return false
}
constraints, err := version.NewConstraint(supportedNetworkManagerVersionConstraint)
if err != nil {
return false
}
return constraints.Check(versionValue)
}
func parseVersion(inputVersion string) (*version.Version, error) {
reg, err := regexp.Compile(version.SemverRegexpRaw)
if err != nil {
return nil, err
}
if inputVersion == "" || !reg.MatchString(inputVersion) {
return nil, fmt.Errorf("couldn't parse the provided version: Not SemVer")
}
verObj, err := version.NewVersion(inputVersion)
if err != nil {
return nil, err
}
return verObj, nil
}

View File

@@ -0,0 +1,84 @@
package dns
import (
"fmt"
"github.com/netbirdio/netbird/iface"
log "github.com/sirupsen/logrus"
"os/exec"
"strings"
)
const resolvconfCommand = "resolvconf"
type resolvconf struct {
ifaceName string
}
func newResolvConfConfigurator(wgInterface *iface.WGIface) (hostManager, error) {
return &resolvconf{
ifaceName: wgInterface.GetName(),
}, nil
}
func (r *resolvconf) applyDNSConfig(config hostDNSConfig) error {
var err error
if !config.routeAll {
err = r.restoreHostDNS()
if err != nil {
log.Error(err)
}
return fmt.Errorf("unable to configure DNS for this peer using resolvconf manager without a nameserver group with all domains configured")
}
var searchDomains string
appendedDomains := 0
for _, dConf := range config.domains {
if dConf.matchOnly {
continue
}
if appendedDomains >= fileMaxNumberOfSearchDomains {
// lets log all skipped domains
log.Infof("already appended %d domains to search list. Skipping append of %s domain", fileMaxNumberOfSearchDomains, dConf.domain)
continue
}
if fileSearchLineBeginCharCount+len(searchDomains) > fileMaxLineCharsLimit {
// lets log all skipped domains
log.Infof("search list line is larger than %d characters. Skipping append of %s domain", fileMaxLineCharsLimit, dConf.domain)
continue
}
searchDomains += " " + dConf.domain
appendedDomains++
}
content := fmt.Sprintf(fileGeneratedResolvConfContentFormat, fileDefaultResolvConfBackupLocation, config.serverIP, searchDomains)
err = r.applyConfig(content)
if err != nil {
return err
}
log.Infof("added %d search domains. Search list: %s", appendedDomains, searchDomains)
return nil
}
func (r *resolvconf) restoreHostDNS() error {
cmd := exec.Command(resolvconfCommand, "-f", "-d", r.ifaceName)
_, err := cmd.Output()
if err != nil {
return fmt.Errorf("got an error while removing resolvconf configuration for %s interface, error: %s", r.ifaceName, err)
}
return nil
}
func (r *resolvconf) applyConfig(content string) error {
cmd := exec.Command(resolvconfCommand, "-x", "-a", r.ifaceName)
cmd.Stdin = strings.NewReader(content)
_, err := cmd.Output()
if err != nil {
return fmt.Errorf("got an error while appying resolvconf configuration for %s interface, error: %s", r.ifaceName, err)
}
return nil
}

View File

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package dns
import (
"context"
"fmt"
"github.com/miekg/dns"
nbdns "github.com/netbirdio/netbird/dns"
"github.com/netbirdio/netbird/iface"
log "github.com/sirupsen/logrus"
"net"
"net/netip"
"runtime"
"sync"
"time"
)
const (
defaultPort = 53
customPort = 5053
defaultIP = "127.0.0.1"
customIP = "127.0.0.153"
)
// Server is a dns server interface
type Server interface {
Start()
Stop()
UpdateDNSServer(serial uint64, update nbdns.Config) error
}
// DefaultServer dns server object
type DefaultServer struct {
ctx context.Context
stop context.CancelFunc
mux sync.Mutex
server *dns.Server
dnsMux *dns.ServeMux
dnsMuxMap registrationMap
localResolver *localResolver
wgInterface *iface.WGIface
hostManager hostManager
updateSerial uint64
listenerIsRunning bool
runtimePort int
runtimeIP string
}
type registrationMap map[string]struct{}
type muxUpdate struct {
domain string
handler dns.Handler
}
// NewDefaultServer returns a new dns server
func NewDefaultServer(ctx context.Context, wgInterface *iface.WGIface) (*DefaultServer, error) {
mux := dns.NewServeMux()
dnsServer := &dns.Server{
Net: "udp",
Handler: mux,
UDPSize: 65535,
}
ctx, stop := context.WithCancel(ctx)
defaultServer := &DefaultServer{
ctx: ctx,
stop: stop,
server: dnsServer,
dnsMux: mux,
dnsMuxMap: make(registrationMap),
localResolver: &localResolver{
registeredMap: make(registrationMap),
},
wgInterface: wgInterface,
runtimePort: defaultPort,
}
hostmanager, err := newHostManager(wgInterface)
if err != nil {
return nil, err
}
defaultServer.hostManager = hostmanager
return defaultServer, err
}
// Start runs the listener in a go routine
func (s *DefaultServer) Start() {
ip, port, err := s.getFirstListenerAvailable()
if err != nil {
log.Error(err)
return
}
s.runtimeIP = ip
s.runtimePort = port
s.server.Addr = fmt.Sprintf("%s:%d", s.runtimeIP, s.runtimePort)
log.Debugf("starting dns on %s", s.server.Addr)
go func() {
s.setListenerStatus(true)
defer s.setListenerStatus(false)
err = s.server.ListenAndServe()
if err != nil {
log.Errorf("dns server running with %d port returned an error: %v. Will not retry", s.runtimePort, err)
}
}()
}
func (s *DefaultServer) getFirstListenerAvailable() (string, int, error) {
ips := []string{defaultIP, customIP}
if runtime.GOOS != "darwin" && s.wgInterface != nil {
ips = append([]string{s.wgInterface.GetAddress().IP.String()}, ips...)
}
ports := []int{defaultPort, customPort}
for _, port := range ports {
for _, ip := range ips {
addrString := fmt.Sprintf("%s:%d", ip, port)
udpAddr := net.UDPAddrFromAddrPort(netip.MustParseAddrPort(addrString))
probeListener, err := net.ListenUDP("udp", udpAddr)
if err == nil {
err = probeListener.Close()
if err != nil {
log.Errorf("got an error closing the probe listener, error: %s", err)
}
return ip, port, nil
}
log.Warnf("binding dns on %s is not available, error: %s", addrString, err)
}
}
return "", 0, fmt.Errorf("unable to find an unused ip and port combination. IPs tested: %v and ports %v", ips, ports)
}
func (s *DefaultServer) setListenerStatus(running bool) {
s.listenerIsRunning = running
}
// Stop stops the server
func (s *DefaultServer) Stop() {
s.mux.Lock()
defer s.mux.Unlock()
s.stop()
err := s.hostManager.restoreHostDNS()
if err != nil {
log.Error(err)
}
err = s.stopListener()
if err != nil {
log.Error(err)
}
}
func (s *DefaultServer) stopListener() error {
if !s.listenerIsRunning {
return nil
}
ctx, cancel := context.WithTimeout(context.Background(), 5*time.Second)
defer cancel()
err := s.server.ShutdownContext(ctx)
if err != nil {
return fmt.Errorf("stopping dns server listener returned an error: %v", err)
}
return nil
}
// UpdateDNSServer processes an update received from the management service
func (s *DefaultServer) UpdateDNSServer(serial uint64, update nbdns.Config) error {
select {
case <-s.ctx.Done():
log.Infof("not updating DNS server as context is closed")
return s.ctx.Err()
default:
if serial < s.updateSerial {
return fmt.Errorf("not applying dns update, error: "+
"network update is %d behind the last applied update", s.updateSerial-serial)
}
s.mux.Lock()
defer s.mux.Unlock()
// is the service should be disabled, we stop the listener
// and proceed with a regular update to clean up the handlers and records
if !update.ServiceEnable {
err := s.stopListener()
if err != nil {
log.Error(err)
}
} else if !s.listenerIsRunning {
s.Start()
}
localMuxUpdates, localRecords, err := s.buildLocalHandlerUpdate(update.CustomZones)
if err != nil {
return fmt.Errorf("not applying dns update, error: %v", err)
}
upstreamMuxUpdates, err := s.buildUpstreamHandlerUpdate(update.NameServerGroups)
if err != nil {
return fmt.Errorf("not applying dns update, error: %v", err)
}
muxUpdates := append(localMuxUpdates, upstreamMuxUpdates...)
s.updateMux(muxUpdates)
s.updateLocalResolver(localRecords)
err = s.hostManager.applyDNSConfig(dnsConfigToHostDNSConfig(update, s.runtimeIP, s.runtimePort))
if err != nil {
log.Error(err)
}
s.updateSerial = serial
return nil
}
}
func (s *DefaultServer) buildLocalHandlerUpdate(customZones []nbdns.CustomZone) ([]muxUpdate, map[string]nbdns.SimpleRecord, error) {
var muxUpdates []muxUpdate
localRecords := make(map[string]nbdns.SimpleRecord, 0)
for _, customZone := range customZones {
if len(customZone.Records) == 0 {
return nil, nil, fmt.Errorf("received an empty list of records")
}
muxUpdates = append(muxUpdates, muxUpdate{
domain: customZone.Domain,
handler: s.localResolver,
})
for _, record := range customZone.Records {
var class uint16 = dns.ClassINET
if record.Class != nbdns.DefaultClass {
return nil, nil, fmt.Errorf("received an invalid class type: %s", record.Class)
}
key := buildRecordKey(record.Name, class, uint16(record.Type))
localRecords[key] = record
}
}
return muxUpdates, localRecords, nil
}
func (s *DefaultServer) buildUpstreamHandlerUpdate(nameServerGroups []*nbdns.NameServerGroup) ([]muxUpdate, error) {
var muxUpdates []muxUpdate
for _, nsGroup := range nameServerGroups {
if len(nsGroup.NameServers) == 0 {
return nil, fmt.Errorf("received a nameserver group with empty nameserver list")
}
handler := &upstreamResolver{
parentCTX: s.ctx,
upstreamClient: &dns.Client{},
upstreamTimeout: defaultUpstreamTimeout,
}
for _, ns := range nsGroup.NameServers {
if ns.NSType != nbdns.UDPNameServerType {
log.Warnf("skiping nameserver %s with type %s, this peer supports only %s",
ns.IP.String(), ns.NSType.String(), nbdns.UDPNameServerType.String())
continue
}
handler.upstreamServers = append(handler.upstreamServers, getNSHostPort(ns))
}
if len(handler.upstreamServers) == 0 {
log.Errorf("received a nameserver group with an invalid nameserver list")
continue
}
if nsGroup.Primary {
muxUpdates = append(muxUpdates, muxUpdate{
domain: nbdns.RootZone,
handler: handler,
})
continue
}
if len(nsGroup.Domains) == 0 {
return nil, fmt.Errorf("received a non primary nameserver group with an empty domain list")
}
for _, domain := range nsGroup.Domains {
if domain == "" {
return nil, fmt.Errorf("received a nameserver group with an empty domain element")
}
muxUpdates = append(muxUpdates, muxUpdate{
domain: domain,
handler: handler,
})
}
}
return muxUpdates, nil
}
func (s *DefaultServer) updateMux(muxUpdates []muxUpdate) {
muxUpdateMap := make(registrationMap)
for _, update := range muxUpdates {
s.registerMux(update.domain, update.handler)
muxUpdateMap[update.domain] = struct{}{}
}
for key := range s.dnsMuxMap {
_, found := muxUpdateMap[key]
if !found {
s.deregisterMux(key)
}
}
s.dnsMuxMap = muxUpdateMap
}
func (s *DefaultServer) updateLocalResolver(update map[string]nbdns.SimpleRecord) {
for key := range s.localResolver.registeredMap {
_, found := update[key]
if !found {
s.localResolver.deleteRecord(key)
}
}
updatedMap := make(registrationMap)
for key, record := range update {
err := s.localResolver.registerRecord(record)
if err != nil {
log.Warnf("got an error while registering the record (%s), error: %v", record.String(), err)
}
updatedMap[key] = struct{}{}
}
s.localResolver.registeredMap = updatedMap
}
func getNSHostPort(ns nbdns.NameServer) string {
return fmt.Sprintf("%s:%d", ns.IP.String(), ns.Port)
}
func (s *DefaultServer) registerMux(pattern string, handler dns.Handler) {
s.dnsMux.Handle(pattern, handler)
}
func (s *DefaultServer) deregisterMux(pattern string) {
s.dnsMux.HandleRemove(pattern)
}

View File

@@ -0,0 +1,320 @@
package dns
import (
"context"
"fmt"
"github.com/miekg/dns"
nbdns "github.com/netbirdio/netbird/dns"
"net"
"net/netip"
"os"
"runtime"
"testing"
"time"
)
var zoneRecords = []nbdns.SimpleRecord{
{
Name: "peera.netbird.cloud",
Type: 1,
Class: nbdns.DefaultClass,
TTL: 300,
RData: "1.2.3.4",
},
}
func TestUpdateDNSServer(t *testing.T) {
nameServers := []nbdns.NameServer{
{
IP: netip.MustParseAddr("8.8.8.8"),
NSType: nbdns.UDPNameServerType,
Port: 53,
},
{
IP: netip.MustParseAddr("8.8.4.4"),
NSType: nbdns.UDPNameServerType,
Port: 53,
},
}
testCases := []struct {
name string
initUpstreamMap registrationMap
initLocalMap registrationMap
initSerial uint64
inputSerial uint64
inputUpdate nbdns.Config
shouldFail bool
expectedUpstreamMap registrationMap
expectedLocalMap registrationMap
}{
{
name: "Initial Config Should Succeed",
initLocalMap: make(registrationMap),
initUpstreamMap: make(registrationMap),
initSerial: 0,
inputSerial: 1,
inputUpdate: nbdns.Config{
ServiceEnable: true,
CustomZones: []nbdns.CustomZone{
{
Domain: "netbird.cloud",
Records: zoneRecords,
},
},
NameServerGroups: []*nbdns.NameServerGroup{
{
Domains: []string{"netbird.io"},
NameServers: nameServers,
},
{
NameServers: nameServers,
Primary: true,
},
},
},
expectedUpstreamMap: registrationMap{"netbird.io": struct{}{}, "netbird.cloud": struct{}{}, nbdns.RootZone: struct{}{}},
expectedLocalMap: registrationMap{buildRecordKey(zoneRecords[0].Name, 1, 1): struct{}{}},
},
{
name: "New Config Should Succeed",
initLocalMap: registrationMap{"netbird.cloud": struct{}{}},
initUpstreamMap: registrationMap{buildRecordKey(zoneRecords[0].Name, 1, 1): struct{}{}},
initSerial: 0,
inputSerial: 1,
inputUpdate: nbdns.Config{
ServiceEnable: true,
CustomZones: []nbdns.CustomZone{
{
Domain: "netbird.cloud",
Records: zoneRecords,
},
},
NameServerGroups: []*nbdns.NameServerGroup{
{
Domains: []string{"netbird.io"},
NameServers: nameServers,
},
},
},
expectedUpstreamMap: registrationMap{"netbird.io": struct{}{}, "netbird.cloud": struct{}{}},
expectedLocalMap: registrationMap{buildRecordKey(zoneRecords[0].Name, 1, 1): struct{}{}},
},
{
name: "Smaller Config Serial Should Be Skipped",
initLocalMap: make(registrationMap),
initUpstreamMap: make(registrationMap),
initSerial: 2,
inputSerial: 1,
shouldFail: true,
},
{
name: "Empty NS Group Domain Or Not Primary Element Should Fail",
initLocalMap: make(registrationMap),
initUpstreamMap: make(registrationMap),
initSerial: 0,
inputSerial: 1,
inputUpdate: nbdns.Config{
ServiceEnable: true,
CustomZones: []nbdns.CustomZone{
{
Domain: "netbird.cloud",
Records: zoneRecords,
},
},
NameServerGroups: []*nbdns.NameServerGroup{
{
NameServers: nameServers,
},
},
},
shouldFail: true,
},
{
name: "Invalid NS Group Nameservers list Should Fail",
initLocalMap: make(registrationMap),
initUpstreamMap: make(registrationMap),
initSerial: 0,
inputSerial: 1,
inputUpdate: nbdns.Config{
ServiceEnable: true,
CustomZones: []nbdns.CustomZone{
{
Domain: "netbird.cloud",
Records: zoneRecords,
},
},
NameServerGroups: []*nbdns.NameServerGroup{
{
NameServers: nameServers,
},
},
},
shouldFail: true,
},
{
name: "Invalid Custom Zone Records list Should Fail",
initLocalMap: make(registrationMap),
initUpstreamMap: make(registrationMap),
initSerial: 0,
inputSerial: 1,
inputUpdate: nbdns.Config{
ServiceEnable: true,
CustomZones: []nbdns.CustomZone{
{
Domain: "netbird.cloud",
},
},
NameServerGroups: []*nbdns.NameServerGroup{
{
NameServers: nameServers,
Primary: true,
},
},
},
shouldFail: true,
},
{
name: "Empty Config Should Succeed and Clean Maps",
initLocalMap: registrationMap{"netbird.cloud": struct{}{}},
initUpstreamMap: registrationMap{zoneRecords[0].Name: struct{}{}},
initSerial: 0,
inputSerial: 1,
inputUpdate: nbdns.Config{ServiceEnable: true},
expectedUpstreamMap: make(registrationMap),
expectedLocalMap: make(registrationMap),
},
}
for _, testCase := range testCases {
t.Run(testCase.name, func(t *testing.T) {
dnsServer := getDefaultServerWithNoHostManager("127.0.0.1")
dnsServer.hostManager = newNoopHostMocker()
dnsServer.dnsMuxMap = testCase.initUpstreamMap
dnsServer.localResolver.registeredMap = testCase.initLocalMap
dnsServer.updateSerial = testCase.initSerial
// pretend we are running
dnsServer.listenerIsRunning = true
err := dnsServer.UpdateDNSServer(testCase.inputSerial, testCase.inputUpdate)
if err != nil {
if testCase.shouldFail {
return
}
t.Fatalf("update dns server should not fail, got error: %v", err)
}
if len(dnsServer.dnsMuxMap) != len(testCase.expectedUpstreamMap) {
t.Fatalf("update upstream failed, map size is different than expected, want %d, got %d", len(testCase.expectedUpstreamMap), len(dnsServer.dnsMuxMap))
}
for key := range testCase.expectedUpstreamMap {
_, found := dnsServer.dnsMuxMap[key]
if !found {
t.Fatalf("update upstream failed, key %s was not found in the dnsMuxMap: %#v", key, dnsServer.dnsMuxMap)
}
}
if len(dnsServer.localResolver.registeredMap) != len(testCase.expectedLocalMap) {
t.Fatalf("update local failed, registered map size is different than expected, want %d, got %d", len(testCase.expectedLocalMap), len(dnsServer.localResolver.registeredMap))
}
for key := range testCase.expectedLocalMap {
_, found := dnsServer.localResolver.registeredMap[key]
if !found {
t.Fatalf("update local failed, key %s was not found in the localResolver.registeredMap: %#v", key, dnsServer.localResolver.registeredMap)
}
}
})
}
}
func TestDNSServerStartStop(t *testing.T) {
dnsServer := getDefaultServerWithNoHostManager("127.0.0.1")
if runtime.GOOS == "windows" && os.Getenv("CI") == "true" {
// todo review why this test is not working only on github actions workflows
t.Skip("skipping test in Windows CI workflows.")
}
dnsServer.hostManager = newNoopHostMocker()
dnsServer.Start()
err := dnsServer.localResolver.registerRecord(zoneRecords[0])
if err != nil {
t.Error(err)
}
dnsServer.dnsMux.Handle("netbird.cloud", dnsServer.localResolver)
resolver := &net.Resolver{
PreferGo: true,
Dial: func(ctx context.Context, network, address string) (net.Conn, error) {
d := net.Dialer{
Timeout: time.Second * 5,
}
addr := fmt.Sprintf("%s:%d", dnsServer.runtimeIP, dnsServer.runtimePort)
conn, err := d.DialContext(ctx, network, addr)
if err != nil {
t.Log(err)
// retry test before exit, for slower systems
return d.DialContext(ctx, network, addr)
}
return conn, nil
},
}
ips, err := resolver.LookupHost(context.Background(), zoneRecords[0].Name)
if err != nil {
t.Fatalf("failed to connect to the server, error: %v", err)
}
t.Log(ips)
if ips[0] != zoneRecords[0].RData {
t.Fatalf("got a different IP from the server: want %s, got %s", zoneRecords[0].RData, ips[0])
}
dnsServer.Stop()
ctx, cancel := context.WithTimeout(context.TODO(), time.Second*1)
defer cancel()
_, err = resolver.LookupHost(ctx, zoneRecords[0].Name)
if err == nil {
t.Fatalf("we should encounter an error when querying a stopped server")
}
}
func getDefaultServerWithNoHostManager(ip string) *DefaultServer {
mux := dns.NewServeMux()
listenIP := defaultIP
if ip != "" {
listenIP = ip
}
dnsServer := &dns.Server{
Addr: fmt.Sprintf("%s:%d", ip, defaultPort),
Net: "udp",
Handler: mux,
UDPSize: 65535,
}
ctx, stop := context.WithCancel(context.TODO())
return &DefaultServer{
ctx: ctx,
stop: stop,
server: dnsServer,
dnsMux: mux,
dnsMuxMap: make(registrationMap),
localResolver: &localResolver{
registeredMap: make(registrationMap),
},
runtimePort: defaultPort,
runtimeIP: listenIP,
}
}

View File

@@ -0,0 +1,202 @@
package dns
import (
"context"
"fmt"
"github.com/godbus/dbus/v5"
"github.com/miekg/dns"
nbdns "github.com/netbirdio/netbird/dns"
"github.com/netbirdio/netbird/iface"
log "github.com/sirupsen/logrus"
"golang.org/x/sys/unix"
"net"
"net/netip"
"time"
)
const (
systemdDbusManagerInterface = "org.freedesktop.resolve1.Manager"
systemdResolvedDest = "org.freedesktop.resolve1"
systemdDbusObjectNode = "/org/freedesktop/resolve1"
systemdDbusGetLinkMethod = systemdDbusManagerInterface + ".GetLink"
systemdDbusFlushCachesMethod = systemdDbusManagerInterface + ".FlushCaches"
systemdDbusResolvConfModeProperty = systemdDbusManagerInterface + ".ResolvConfMode"
systemdDbusLinkInterface = "org.freedesktop.resolve1.Link"
systemdDbusRevertMethodSuffix = systemdDbusLinkInterface + ".Revert"
systemdDbusSetDNSMethodSuffix = systemdDbusLinkInterface + ".SetDNS"
systemdDbusSetDefaultRouteMethodSuffix = systemdDbusLinkInterface + ".SetDefaultRoute"
systemdDbusSetDomainsMethodSuffix = systemdDbusLinkInterface + ".SetDomains"
systemdDbusResolvConfModeForeign = "foreign"
)
type systemdDbusConfigurator struct {
dbusLinkObject dbus.ObjectPath
routingAll bool
}
// the types below are based on dbus specification, each field is mapped to a dbus type
// see https://dbus.freedesktop.org/doc/dbus-specification.html#basic-types for more details on dbus types
// see https://www.freedesktop.org/software/systemd/man/org.freedesktop.resolve1.html on resolve1 input types
// systemdDbusDNSInput maps to a (iay) dbus input for SetDNS method
type systemdDbusDNSInput struct {
Family int32
Address []byte
}
// systemdDbusLinkDomainsInput maps to a (sb) dbus input for SetDomains method
type systemdDbusLinkDomainsInput struct {
Domain string
MatchOnly bool
}
func newSystemdDbusConfigurator(wgInterface *iface.WGIface) (hostManager, error) {
iface, err := net.InterfaceByName(wgInterface.GetName())
if err != nil {
return nil, err
}
obj, closeConn, err := getDbusObject(systemdResolvedDest, systemdDbusObjectNode)
if err != nil {
return nil, err
}
defer closeConn()
var s string
err = obj.Call(systemdDbusGetLinkMethod, dbusDefaultFlag, iface.Index).Store(&s)
if err != nil {
return nil, err
}
log.Debugf("got dbus Link interface: %s from net interface %s and index %d", s, iface.Name, iface.Index)
return &systemdDbusConfigurator{
dbusLinkObject: dbus.ObjectPath(s),
}, nil
}
func (s *systemdDbusConfigurator) applyDNSConfig(config hostDNSConfig) error {
parsedIP := netip.MustParseAddr(config.serverIP).As4()
defaultLinkInput := systemdDbusDNSInput{
Family: unix.AF_INET,
Address: parsedIP[:],
}
err := s.callLinkMethod(systemdDbusSetDNSMethodSuffix, []systemdDbusDNSInput{defaultLinkInput})
if err != nil {
return fmt.Errorf("setting the interface DNS server %s:%d failed with error: %s", config.serverIP, config.serverPort, err)
}
var (
searchDomains []string
matchDomains []string
domainsInput []systemdDbusLinkDomainsInput
)
for _, dConf := range config.domains {
domainsInput = append(domainsInput, systemdDbusLinkDomainsInput{
Domain: dns.Fqdn(dConf.domain),
MatchOnly: dConf.matchOnly,
})
if dConf.matchOnly {
matchDomains = append(matchDomains, dConf.domain)
continue
}
searchDomains = append(searchDomains, dConf.domain)
}
if config.routeAll {
log.Infof("configured %s:%d as main DNS forwarder for this peer", config.serverIP, config.serverPort)
err = s.callLinkMethod(systemdDbusSetDefaultRouteMethodSuffix, true)
if err != nil {
return fmt.Errorf("setting link as default dns router, failed with error: %s", err)
}
domainsInput = append(domainsInput, systemdDbusLinkDomainsInput{
Domain: nbdns.RootZone,
MatchOnly: true,
})
s.routingAll = true
} else if s.routingAll {
log.Infof("removing %s:%d as main DNS forwarder for this peer", config.serverIP, config.serverPort)
}
log.Infof("adding %d search domains and %d match domains. Search list: %s , Match list: %s", len(searchDomains), len(matchDomains), searchDomains, matchDomains)
err = s.setDomainsForInterface(domainsInput)
if err != nil {
log.Error(err)
}
return nil
}
func (s *systemdDbusConfigurator) setDomainsForInterface(domainsInput []systemdDbusLinkDomainsInput) error {
err := s.callLinkMethod(systemdDbusSetDomainsMethodSuffix, domainsInput)
if err != nil {
return fmt.Errorf("setting domains configuration failed with error: %s", err)
}
return s.flushCaches()
}
func (s *systemdDbusConfigurator) restoreHostDNS() error {
log.Infof("reverting link settings and flushing cache")
if !isDbusListenerRunning(systemdResolvedDest, s.dbusLinkObject) {
return nil
}
err := s.callLinkMethod(systemdDbusRevertMethodSuffix, nil)
if err != nil {
return fmt.Errorf("unable to revert link configuration, got error: %s", err)
}
return s.flushCaches()
}
func (s *systemdDbusConfigurator) flushCaches() error {
obj, closeConn, err := getDbusObject(systemdResolvedDest, systemdDbusObjectNode)
if err != nil {
return fmt.Errorf("got error while attempting to retrieve the object %s, err: %s", systemdDbusObjectNode, err)
}
defer closeConn()
ctx, cancel := context.WithTimeout(context.TODO(), 5*time.Second)
defer cancel()
err = obj.CallWithContext(ctx, systemdDbusFlushCachesMethod, dbusDefaultFlag).Store()
if err != nil {
return fmt.Errorf("got error while calling the FlushCaches method with context, err: %s", err)
}
return nil
}
func (s *systemdDbusConfigurator) callLinkMethod(method string, value any) error {
obj, closeConn, err := getDbusObject(systemdResolvedDest, s.dbusLinkObject)
if err != nil {
return fmt.Errorf("got error while attempting to retrieve the object, err: %s", err)
}
defer closeConn()
ctx, cancel := context.WithTimeout(context.TODO(), 5*time.Second)
defer cancel()
if value != nil {
err = obj.CallWithContext(ctx, method, dbusDefaultFlag, value).Store()
} else {
err = obj.CallWithContext(ctx, method, dbusDefaultFlag).Store()
}
if err != nil {
return fmt.Errorf("got error while calling command with context, err: %s", err)
}
return nil
}
func getSystemdDbusProperty(property string, store any) error {
obj, closeConn, err := getDbusObject(systemdResolvedDest, systemdDbusObjectNode)
if err != nil {
return fmt.Errorf("got error while attempting to retrieve the systemd dns manager object, error: %s", err)
}
defer closeConn()
v, e := obj.GetProperty(property)
if e != nil {
return fmt.Errorf("got an error getting property %s: %v", property, e)
}
return v.Store(store)
}

View File

@@ -0,0 +1,67 @@
package dns
import (
"context"
"errors"
"github.com/miekg/dns"
log "github.com/sirupsen/logrus"
"net"
"time"
)
const defaultUpstreamTimeout = 15 * time.Second
type upstreamResolver struct {
parentCTX context.Context
upstreamClient *dns.Client
upstreamServers []string
upstreamTimeout time.Duration
}
// ServeDNS handles a DNS request
func (u *upstreamResolver) ServeDNS(w dns.ResponseWriter, r *dns.Msg) {
log.Tracef("received an upstream question: %#v", r.Question[0])
select {
case <-u.parentCTX.Done():
return
default:
}
for _, upstream := range u.upstreamServers {
ctx, cancel := context.WithTimeout(u.parentCTX, u.upstreamTimeout)
rm, t, err := u.upstreamClient.ExchangeContext(ctx, r, upstream)
cancel()
if err != nil {
if err == context.DeadlineExceeded || isTimeout(err) {
log.Warnf("got an error while connecting to upstream %s, error: %v", upstream, err)
continue
}
log.Errorf("got an error while querying the upstream %s, error: %v", upstream, err)
return
}
log.Tracef("took %s to query the upstream %s", t, upstream)
err = w.WriteMsg(rm)
if err != nil {
log.Errorf("got an error while writing the upstream resolver response, error: %v", err)
}
return
}
log.Errorf("all queries to the upstream nameservers failed with timeout")
}
// isTimeout returns true if the given error is a network timeout error.
//
// Copied from k8s.io/apimachinery/pkg/util/net.IsTimeout
func isTimeout(err error) bool {
var neterr net.Error
if errors.As(err, &neterr) {
return neterr != nil && neterr.Timeout()
}
return false
}

View File

@@ -0,0 +1,110 @@
package dns
import (
"context"
"github.com/miekg/dns"
"strings"
"testing"
"time"
)
func TestUpstreamResolver_ServeDNS(t *testing.T) {
testCases := []struct {
name string
inputMSG *dns.Msg
responseShouldBeNil bool
InputServers []string
timeout time.Duration
cancelCTX bool
expectedAnswer string
}{
{
name: "Should Resolve A Record",
inputMSG: new(dns.Msg).SetQuestion("one.one.one.one.", dns.TypeA),
InputServers: []string{"8.8.8.8:53", "8.8.4.4:53"},
timeout: defaultUpstreamTimeout,
expectedAnswer: "1.1.1.1",
},
{
name: "Should Resolve If First Upstream Times Out",
inputMSG: new(dns.Msg).SetQuestion("one.one.one.one.", dns.TypeA),
InputServers: []string{"8.0.0.0:53", "8.8.4.4:53"},
timeout: 2 * time.Second,
expectedAnswer: "1.1.1.1",
},
{
name: "Should Not Resolve If Can't Connect To Both Servers",
inputMSG: new(dns.Msg).SetQuestion("one.one.one.one.", dns.TypeA),
InputServers: []string{"8.0.0.0:53", "8.0.0.1:53"},
timeout: 200 * time.Millisecond,
responseShouldBeNil: true,
},
{
name: "Should Not Resolve If Parent Context Is Canceled",
inputMSG: new(dns.Msg).SetQuestion("one.one.one.one.", dns.TypeA),
InputServers: []string{"8.0.0.0:53", "8.8.4.4:53"},
cancelCTX: true,
timeout: defaultUpstreamTimeout,
responseShouldBeNil: true,
},
//{
// name: "Should Resolve CNAME Record",
// inputMSG: new(dns.Msg).SetQuestion("one.one.one.one", dns.TypeCNAME),
//},
//{
// name: "Should Not Write When Not Found A Record",
// inputMSG: new(dns.Msg).SetQuestion("not.found.com", dns.TypeA),
// responseShouldBeNil: true,
//},
}
// should resolve if first upstream times out
// should not write when both fails
// should not resolve if parent context is canceled
for _, testCase := range testCases {
t.Run(testCase.name, func(t *testing.T) {
ctx, cancel := context.WithCancel(context.TODO())
resolver := &upstreamResolver{
parentCTX: ctx,
upstreamClient: &dns.Client{},
upstreamServers: testCase.InputServers,
upstreamTimeout: testCase.timeout,
}
if testCase.cancelCTX {
cancel()
} else {
defer cancel()
}
var responseMSG *dns.Msg
responseWriter := &mockResponseWriter{
WriteMsgFunc: func(m *dns.Msg) error {
responseMSG = m
return nil
},
}
resolver.ServeDNS(responseWriter, testCase.inputMSG)
if responseMSG == nil {
if testCase.responseShouldBeNil {
return
}
t.Fatalf("should write a response message")
}
foundAnswer := false
for _, answer := range responseMSG.Answer {
if strings.Contains(answer.String(), testCase.expectedAnswer) {
foundAnswer = true
break
}
}
if !foundAnswer {
t.Errorf("couldn't find the required answer, %s, in the dns response", testCase.expectedAnswer)
}
})
}
}

View File

@@ -5,10 +5,20 @@ import (
"fmt"
"math/rand"
"net"
"net/netip"
"reflect"
"runtime"
"strings"
"sync"
"time"
"github.com/netbirdio/netbird/client/internal/dns"
"github.com/netbirdio/netbird/client/internal/routemanager"
nbssh "github.com/netbirdio/netbird/client/ssh"
nbstatus "github.com/netbirdio/netbird/client/status"
nbdns "github.com/netbirdio/netbird/dns"
"github.com/netbirdio/netbird/route"
"github.com/netbirdio/netbird/client/internal/peer"
"github.com/netbirdio/netbird/client/internal/proxy"
"github.com/netbirdio/netbird/iface"
@@ -45,7 +55,8 @@ type EngineConfig struct {
WgPrivateKey wgtypes.Key
// IFaceBlackList is a list of network interfaces to ignore when discovering connection candidates (ICE related)
IFaceBlackList []string
IFaceBlackList []string
DisableIPv6Discovery bool
PreSharedKey *wgtypes.Key
@@ -54,6 +65,11 @@ type EngineConfig struct {
// UDPMuxSrflxPort default value 0 - the system will pick an available port
UDPMuxSrflxPort int
// SSHKey is a private SSH key in a PEM format
SSHKey []byte
NATExternalIPs []string
}
// Engine is a mechanism responsible for reacting on Signal and Management stream events and managing connections to the remote peers.
@@ -87,6 +103,15 @@ type Engine struct {
// networkSerial is the latest CurrentSerial (state ID) of the network sent by the Management service
networkSerial uint64
sshServerFunc func(hostKeyPEM []byte, addr string) (nbssh.Server, error)
sshServer nbssh.Server
statusRecorder *nbstatus.Status
routeManager routemanager.Manager
dnsServer dns.Server
}
// Peer is an instance of the Connection Peer
@@ -98,19 +123,22 @@ type Peer struct {
// NewEngine creates a new Connection Engine
func NewEngine(
ctx context.Context, cancel context.CancelFunc,
signalClient signal.Client, mgmClient mgm.Client, config *EngineConfig,
signalClient signal.Client, mgmClient mgm.Client,
config *EngineConfig, statusRecorder *nbstatus.Status,
) *Engine {
return &Engine{
ctx: ctx,
cancel: cancel,
signal: signalClient,
mgmClient: mgmClient,
peerConns: map[string]*peer.Conn{},
syncMsgMux: &sync.Mutex{},
config: config,
STUNs: []*ice.URL{},
TURNs: []*ice.URL{},
networkSerial: 0,
ctx: ctx,
cancel: cancel,
signal: signalClient,
mgmClient: mgmClient,
peerConns: map[string]*peer.Conn{},
syncMsgMux: &sync.Mutex{},
config: config,
STUNs: []*ice.URL{},
TURNs: []*ice.URL{},
networkSerial: 0,
sshServerFunc: nbssh.DefaultSSHServer,
statusRecorder: statusRecorder,
}
}
@@ -160,6 +188,21 @@ func (e *Engine) Stop() error {
}
}
if !isNil(e.sshServer) {
err := e.sshServer.Stop()
if err != nil {
log.Warnf("failed stopping the SSH server: %v", err)
}
}
if e.routeManager != nil {
e.routeManager.Stop()
}
if e.dnsServer != nil {
e.dnsServer.Stop()
}
log.Infof("stopped Netbird Engine")
return nil
@@ -183,13 +226,18 @@ func (e *Engine) Start() error {
return err
}
e.udpMuxConn, err = net.ListenUDP("udp4", &net.UDPAddr{Port: e.config.UDPMuxPort})
networkName := "udp"
if e.config.DisableIPv6Discovery {
networkName = "udp4"
}
e.udpMuxConn, err = net.ListenUDP(networkName, &net.UDPAddr{Port: e.config.UDPMuxPort})
if err != nil {
log.Errorf("failed listening on UDP port %d: [%s]", e.config.UDPMuxPort, err.Error())
return err
}
e.udpMuxConnSrflx, err = net.ListenUDP("udp4", &net.UDPAddr{Port: e.config.UDPMuxSrflxPort})
e.udpMuxConnSrflx, err = net.ListenUDP(networkName, &net.UDPAddr{Port: e.config.UDPMuxSrflxPort})
if err != nil {
log.Errorf("failed listening on UDP port %d: [%s]", e.config.UDPMuxSrflxPort, err.Error())
return err
@@ -210,6 +258,16 @@ func (e *Engine) Start() error {
return err
}
e.routeManager = routemanager.NewManager(e.ctx, e.config.WgPrivateKey.PublicKey().String(), e.wgInterface, e.statusRecorder)
if e.dnsServer == nil {
dnsServer, err := dns.NewDefaultServer(e.ctx, e.wgInterface)
if err != nil {
return err
}
e.dnsServer = dnsServer
}
e.receiveSignalEvents()
e.receiveManagementEvents()
@@ -223,9 +281,15 @@ func (e *Engine) modifyPeers(peersUpdate []*mgmProto.RemotePeerConfig) error {
// first, check if peers have been modified
var modified []*mgmProto.RemotePeerConfig
for _, p := range peersUpdate {
if peerConn, ok := e.peerConns[p.GetWgPubKey()]; ok {
peerPubKey := p.GetWgPubKey()
if peerConn, ok := e.peerConns[peerPubKey]; ok {
if peerConn.GetConf().ProxyConfig.AllowedIps != strings.Join(p.AllowedIps, ",") {
modified = append(modified, p)
continue
}
err := e.statusRecorder.UpdatePeerFQDN(peerPubKey, p.GetFqdn())
if err != nil {
log.Warnf("error updating peer's %s fqdn in the status recorder, got error: %v", peerPubKey, err)
}
}
}
@@ -283,9 +347,21 @@ func (e *Engine) removeAllPeers() error {
return nil
}
// removePeer closes an existing peer connection and removes a peer
// removePeer closes an existing peer connection, removes a peer, and clears authorized key of the SSH server
func (e *Engine) removePeer(peerKey string) error {
log.Debugf("removing peer from engine %s", peerKey)
if !isNil(e.sshServer) {
e.sshServer.RemoveAuthorizedKey(peerKey)
}
defer func() {
err := e.statusRecorder.RemovePeer(peerKey)
if err != nil {
log.Warnf("received error when removing peer %s from status recorder: %v", peerKey, err)
}
}()
conn, exists := e.peerConns[peerKey]
if exists {
delete(e.peerConns, peerKey)
@@ -348,15 +424,14 @@ func signalCandidate(candidate ice.Candidate, myKey wgtypes.Key, remoteKey wgtyp
},
})
if err != nil {
log.Errorf("failed signaling candidate to the remote peer %s %s", remoteKey.String(), err)
// todo ??
return err
}
return nil
}
func signalAuth(uFrag string, pwd string, myKey wgtypes.Key, remoteKey wgtypes.Key, s signal.Client, isAnswer bool) error {
// SignalOfferAnswer signals either an offer or an answer to remote peer
func SignalOfferAnswer(offerAnswer peer.OfferAnswer, myKey wgtypes.Key, remoteKey wgtypes.Key, s signal.Client, isAnswer bool) error {
var t sProto.Body_Type
if isAnswer {
t = sProto.Body_ANSWER
@@ -364,9 +439,9 @@ func signalAuth(uFrag string, pwd string, myKey wgtypes.Key, remoteKey wgtypes.K
t = sProto.Body_OFFER
}
msg, err := signal.MarshalCredential(myKey, remoteKey, &signal.Credential{
UFrag: uFrag,
Pwd: pwd,
msg, err := signal.MarshalCredential(myKey, offerAnswer.WgListenPort, remoteKey, &signal.Credential{
UFrag: offerAnswer.IceCredentials.UFrag,
Pwd: offerAnswer.IceCredentials.Pwd,
}, t)
if err != nil {
return err
@@ -398,12 +473,6 @@ func (e *Engine) handleSync(update *mgmProto.SyncResponse) error {
}
if update.GetNetworkMap() != nil {
if update.GetNetworkMap().GetPeerConfig() != nil {
err := e.updateConfig(update.GetNetworkMap().GetPeerConfig())
if err != nil {
return err
}
}
// only apply new changes and ignore old ones
err := e.updateNetworkMap(update.GetNetworkMap())
if err != nil {
@@ -414,6 +483,53 @@ func (e *Engine) handleSync(update *mgmProto.SyncResponse) error {
return nil
}
func isNil(server nbssh.Server) bool {
return server == nil || reflect.ValueOf(server).IsNil()
}
func (e *Engine) updateSSH(sshConf *mgmProto.SSHConfig) error {
if sshConf.GetSshEnabled() {
if runtime.GOOS == "windows" {
log.Warnf("running SSH server on Windows is not supported")
return nil
}
// start SSH server if it wasn't running
if isNil(e.sshServer) {
//nil sshServer means it has not yet been started
var err error
e.sshServer, err = e.sshServerFunc(e.config.SSHKey,
fmt.Sprintf("%s:%d", e.wgInterface.Address.IP.String(), nbssh.DefaultSSHPort))
if err != nil {
return err
}
go func() {
// blocking
err = e.sshServer.Start()
if err != nil {
// will throw error when we stop it even if it is a graceful stop
log.Debugf("stopped SSH server with error %v", err)
}
e.syncMsgMux.Lock()
defer e.syncMsgMux.Unlock()
e.sshServer = nil
log.Infof("stopped SSH server")
}()
} else {
log.Debugf("SSH server is already running")
}
} else {
// Disable SSH server request, so stop it if it was running
if !isNil(e.sshServer) {
err := e.sshServer.Stop()
if err != nil {
log.Warnf("failed to stop SSH server %v", err)
}
e.sshServer = nil
}
}
return nil
}
func (e *Engine) updateConfig(conf *mgmProto.PeerConfig) error {
if e.wgInterface.Address.String() != conf.Address {
oldAddr := e.wgInterface.Address.String()
@@ -422,9 +538,24 @@ func (e *Engine) updateConfig(conf *mgmProto.PeerConfig) error {
if err != nil {
return err
}
e.config.WgAddr = conf.Address
log.Infof("updated peer address from %s to %s", oldAddr, conf.Address)
}
if conf.GetSshConfig() != nil {
err := e.updateSSH(conf.GetSshConfig())
if err != nil {
log.Warnf("failed handling SSH server setup %v", e)
}
}
e.statusRecorder.UpdateLocalPeerState(nbstatus.LocalPeerState{
IP: e.config.WgAddr,
PubKey: e.config.WgPrivateKey.PublicKey().String(),
KernelInterface: iface.WireguardModuleIsLoaded(),
FQDN: conf.GetFqdn(),
})
return nil
}
@@ -486,6 +617,15 @@ func (e *Engine) updateTURNs(turns []*mgmProto.ProtectedHostConfig) error {
}
func (e *Engine) updateNetworkMap(networkMap *mgmProto.NetworkMap) error {
// intentionally leave it before checking serial because for now it can happen that peer IP changed but serial didn't
if networkMap.GetPeerConfig() != nil {
err := e.updateConfig(networkMap.GetPeerConfig())
if err != nil {
return err
}
}
serial := networkMap.GetSerial()
if e.networkSerial > serial {
log.Debugf("received outdated NetworkMap with serial %d, ignoring", serial)
@@ -515,12 +655,101 @@ func (e *Engine) updateNetworkMap(networkMap *mgmProto.NetworkMap) error {
if err != nil {
return err
}
// update SSHServer by adding remote peer SSH keys
if !isNil(e.sshServer) {
for _, config := range networkMap.GetRemotePeers() {
if config.GetSshConfig() != nil && config.GetSshConfig().GetSshPubKey() != nil {
err := e.sshServer.AddAuthorizedKey(config.WgPubKey, string(config.GetSshConfig().GetSshPubKey()))
if err != nil {
log.Warnf("failed adding authroized key to SSH DefaultServer %v", err)
}
}
}
}
}
protoRoutes := networkMap.GetRoutes()
if protoRoutes == nil {
protoRoutes = []*mgmProto.Route{}
}
err := e.routeManager.UpdateRoutes(serial, toRoutes(protoRoutes))
if err != nil {
log.Errorf("failed to update routes, err: %v", err)
}
protoDNSConfig := networkMap.GetDNSConfig()
if protoDNSConfig == nil {
protoDNSConfig = &mgmProto.DNSConfig{}
}
err = e.dnsServer.UpdateDNSServer(serial, toDNSConfig(protoDNSConfig))
if err != nil {
log.Errorf("failed to update dns server, err: %v", err)
}
e.networkSerial = serial
return nil
}
func toRoutes(protoRoutes []*mgmProto.Route) []*route.Route {
routes := make([]*route.Route, 0)
for _, protoRoute := range protoRoutes {
_, prefix, _ := route.ParseNetwork(protoRoute.Network)
convertedRoute := &route.Route{
ID: protoRoute.ID,
Network: prefix,
NetID: protoRoute.NetID,
NetworkType: route.NetworkType(protoRoute.NetworkType),
Peer: protoRoute.Peer,
Metric: int(protoRoute.Metric),
Masquerade: protoRoute.Masquerade,
}
routes = append(routes, convertedRoute)
}
return routes
}
func toDNSConfig(protoDNSConfig *mgmProto.DNSConfig) nbdns.Config {
dnsUpdate := nbdns.Config{
ServiceEnable: protoDNSConfig.GetServiceEnable(),
CustomZones: make([]nbdns.CustomZone, 0),
NameServerGroups: make([]*nbdns.NameServerGroup, 0),
}
for _, zone := range protoDNSConfig.GetCustomZones() {
dnsZone := nbdns.CustomZone{
Domain: zone.GetDomain(),
}
for _, record := range zone.Records {
dnsRecord := nbdns.SimpleRecord{
Name: record.GetName(),
Type: int(record.GetType()),
Class: record.GetClass(),
TTL: int(record.GetTTL()),
RData: record.GetRData(),
}
dnsZone.Records = append(dnsZone.Records, dnsRecord)
}
dnsUpdate.CustomZones = append(dnsUpdate.CustomZones, dnsZone)
}
for _, nsGroup := range protoDNSConfig.GetNameServerGroups() {
dnsNSGroup := &nbdns.NameServerGroup{
Primary: nsGroup.GetPrimary(),
Domains: nsGroup.GetDomains(),
}
for _, ns := range nsGroup.GetNameServers() {
dnsNS := nbdns.NameServer{
IP: netip.MustParseAddr(ns.GetIP()),
NSType: nbdns.NameServerType(ns.GetNSType()),
Port: int(ns.GetPort()),
}
dnsNSGroup.NameServers = append(dnsNSGroup.NameServers, dnsNS)
}
dnsUpdate.NameServerGroups = append(dnsUpdate.NameServerGroups, dnsNSGroup)
}
return dnsUpdate
}
// addNewPeers adds peers that were not know before but arrived from the Management service with the update
func (e *Engine) addNewPeers(peersUpdate []*mgmProto.RemotePeerConfig) error {
for _, p := range peersUpdate {
@@ -543,12 +772,21 @@ func (e *Engine) addNewPeer(peerConfig *mgmProto.RemotePeerConfig) error {
}
e.peerConns[peerKey] = conn
err = e.statusRecorder.AddPeer(peerKey)
if err != nil {
log.Warnf("error adding peer %s to status recorder, got error: %v", peerKey, err)
}
go e.connWorker(conn, peerKey)
}
err := e.statusRecorder.UpdatePeerFQDN(peerKey, peerConfig.Fqdn)
if err != nil {
log.Warnf("error updating peer's %s fqdn in the status recorder, got error: %v", peerKey, err)
}
return nil
}
func (e Engine) connWorker(conn *peer.Conn, peerKey string) {
func (e *Engine) connWorker(conn *peer.Conn, peerKey string) {
for {
// randomize starting time a bit
@@ -567,6 +805,13 @@ func (e Engine) connWorker(conn *peer.Conn, peerKey string) {
continue
}
// we might have received new STUN and TURN servers meanwhile, so update them
e.syncMsgMux.Lock()
conf := conn.GetConf()
conf.StunTurn = append(e.STUNs, e.TURNs...)
conn.UpdateConf(conf)
e.syncMsgMux.Unlock()
err := conn.Open()
if err != nil {
log.Debugf("connection to peer %s failed: %v", peerKey, err)
@@ -588,6 +833,7 @@ func (e Engine) peerExists(peerKey string) bool {
}
func (e Engine) createPeerConn(pubKey string, allowedIPs string) (*peer.Conn, error) {
log.Debugf("creating peer connection %s", pubKey)
var stunTurn []*ice.URL
stunTurn = append(stunTurn, e.STUNs...)
stunTurn = append(stunTurn, e.TURNs...)
@@ -603,17 +849,20 @@ func (e Engine) createPeerConn(pubKey string, allowedIPs string) (*peer.Conn, er
// randomize connection timeout
timeout := time.Duration(rand.Intn(PeerConnectionTimeoutMax-PeerConnectionTimeoutMin)+PeerConnectionTimeoutMin) * time.Millisecond
config := peer.ConnConfig{
Key: pubKey,
LocalKey: e.config.WgPrivateKey.PublicKey().String(),
StunTurn: stunTurn,
InterfaceBlackList: e.config.IFaceBlackList,
Timeout: timeout,
UDPMux: e.udpMux,
UDPMuxSrflx: e.udpMuxSrflx,
ProxyConfig: proxyConfig,
Key: pubKey,
LocalKey: e.config.WgPrivateKey.PublicKey().String(),
StunTurn: stunTurn,
InterfaceBlackList: e.config.IFaceBlackList,
DisableIPv6Discovery: e.config.DisableIPv6Discovery,
Timeout: timeout,
UDPMux: e.udpMux,
UDPMuxSrflx: e.udpMuxSrflx,
ProxyConfig: proxyConfig,
LocalWgPort: e.config.WgPort,
NATExternalIPs: e.parseNATExternalIPMappings(),
}
peerConn, err := peer.NewConn(config)
peerConn, err := peer.NewConn(config, e.statusRecorder)
if err != nil {
return nil, err
}
@@ -623,16 +872,16 @@ func (e Engine) createPeerConn(pubKey string, allowedIPs string) (*peer.Conn, er
return nil, err
}
signalOffer := func(uFrag string, pwd string) error {
return signalAuth(uFrag, pwd, e.config.WgPrivateKey, wgPubKey, e.signal, false)
signalOffer := func(offerAnswer peer.OfferAnswer) error {
return SignalOfferAnswer(offerAnswer, e.config.WgPrivateKey, wgPubKey, e.signal, false)
}
signalCandidate := func(candidate ice.Candidate) error {
return signalCandidate(candidate, e.config.WgPrivateKey, wgPubKey, e.signal)
}
signalAnswer := func(uFrag string, pwd string) error {
return signalAuth(uFrag, pwd, e.config.WgPrivateKey, wgPubKey, e.signal, true)
signalAnswer := func(offerAnswer peer.OfferAnswer) error {
return SignalOfferAnswer(offerAnswer, e.config.WgPrivateKey, wgPubKey, e.signal, true)
}
peerConn.SetSignalCandidate(signalCandidate)
@@ -661,18 +910,26 @@ func (e *Engine) receiveSignalEvents() {
if err != nil {
return err
}
conn.OnRemoteOffer(peer.IceCredentials{
UFrag: remoteCred.UFrag,
Pwd: remoteCred.Pwd,
conn.OnRemoteOffer(peer.OfferAnswer{
IceCredentials: peer.IceCredentials{
UFrag: remoteCred.UFrag,
Pwd: remoteCred.Pwd,
},
WgListenPort: int(msg.GetBody().GetWgListenPort()),
Version: msg.GetBody().GetNetBirdVersion(),
})
case sProto.Body_ANSWER:
remoteCred, err := signal.UnMarshalCredential(msg)
if err != nil {
return err
}
conn.OnRemoteAnswer(peer.IceCredentials{
UFrag: remoteCred.UFrag,
Pwd: remoteCred.Pwd,
conn.OnRemoteAnswer(peer.OfferAnswer{
IceCredentials: peer.IceCredentials{
UFrag: remoteCred.UFrag,
Pwd: remoteCred.Pwd,
},
WgListenPort: int(msg.GetBody().GetWgListenPort()),
Version: msg.GetBody().GetNetBirdVersion(),
})
case sProto.Body_CANDIDATE:
candidate, err := ice.UnmarshalCandidate(msg.GetBody().Payload)
@@ -696,3 +953,77 @@ func (e *Engine) receiveSignalEvents() {
e.signal.WaitStreamConnected()
}
func (e *Engine) parseNATExternalIPMappings() []string {
var mappedIPs []string
var ignoredIFaces = make(map[string]interface{})
for _, iFace := range e.config.IFaceBlackList {
ignoredIFaces[iFace] = nil
}
for _, mapping := range e.config.NATExternalIPs {
var external, internal string
var externalIP, internalIP net.IP
var err error
split := strings.Split(mapping, "/")
if len(split) > 2 {
log.Warnf("ignoring invalid external mapping '%s', too many delimiters", mapping)
break
}
if len(split) > 1 {
internal = split[1]
internalIP = net.ParseIP(internal)
if internalIP == nil {
// not a properly formatted IP address, maybe it's interface name?
if _, present := ignoredIFaces[internal]; present {
log.Warnf("internal interface '%s' in blacklist, ignoring external mapping '%s'", internal, mapping)
break
}
internalIP, err = findIPFromInterfaceName(internal)
if err != nil {
log.Warnf("error finding interface IP for interface '%s', ignoring external mapping '%s': %v", internal, mapping, err)
break
}
}
}
external = split[0]
externalIP = net.ParseIP(external)
if externalIP == nil {
log.Warnf("invalid external IP, ignoring external IP mapping '%s'", mapping)
break
}
if externalIP != nil {
mappedIP := externalIP.String()
if internalIP != nil {
mappedIP = mappedIP + "/" + internalIP.String()
}
mappedIPs = append(mappedIPs, mappedIP)
log.Infof("parsed external IP mapping of '%s' as '%s'", mapping, mappedIP)
}
}
if len(mappedIPs) != len(e.config.NATExternalIPs) {
log.Warnf("one or more external IP mappings failed to parse, ignoring all mappings")
return nil
}
return mappedIPs
}
func findIPFromInterfaceName(ifaceName string) (net.IP, error) {
iface, err := net.InterfaceByName(ifaceName)
if err != nil {
return nil, err
}
return findIPFromInterface(iface)
}
func findIPFromInterface(iface *net.Interface) (net.IP, error) {
ifaceAddrs, err := iface.Addrs()
if err != nil {
return nil, err
}
for _, addr := range ifaceAddrs {
if ipv4Addr := addr.(*net.IPNet).IP.To4(); ipv4Addr != nil {
return ipv4Addr, nil
}
}
return nil, fmt.Errorf("interface %s don't have an ipv4 address", iface.Name)
}

View File

@@ -3,7 +3,16 @@ package internal
import (
"context"
"fmt"
"github.com/netbirdio/netbird/client/internal/dns"
"github.com/netbirdio/netbird/client/internal/routemanager"
"github.com/netbirdio/netbird/client/ssh"
nbstatus "github.com/netbirdio/netbird/client/status"
nbdns "github.com/netbirdio/netbird/dns"
"github.com/netbirdio/netbird/iface"
"github.com/netbirdio/netbird/route"
"github.com/stretchr/testify/assert"
"net"
"net/netip"
"os"
"path/filepath"
"runtime"
@@ -40,6 +49,144 @@ var (
}
)
func TestEngine_SSH(t *testing.T) {
if runtime.GOOS == "windows" {
t.Skip("skipping TestEngine_SSH on Windows")
}
key, err := wgtypes.GeneratePrivateKey()
if err != nil {
t.Fatal(err)
return
}
ctx, cancel := context.WithCancel(context.Background())
defer cancel()
engine := NewEngine(ctx, cancel, &signal.MockClient{}, &mgmt.MockClient{}, &EngineConfig{
WgIfaceName: "utun101",
WgAddr: "100.64.0.1/24",
WgPrivateKey: key,
WgPort: 33100,
}, nbstatus.NewRecorder())
engine.dnsServer = &dns.MockServer{
UpdateDNSServerFunc: func(serial uint64, update nbdns.Config) error { return nil },
}
var sshKeysAdded []string
var sshPeersRemoved []string
sshCtx, cancel := context.WithCancel(context.Background())
engine.sshServerFunc = func(hostKeyPEM []byte, addr string) (ssh.Server, error) {
return &ssh.MockServer{
Ctx: sshCtx,
StopFunc: func() error {
cancel()
return nil
},
StartFunc: func() error {
<-ctx.Done()
return ctx.Err()
},
AddAuthorizedKeyFunc: func(peer, newKey string) error {
sshKeysAdded = append(sshKeysAdded, newKey)
return nil
},
RemoveAuthorizedKeyFunc: func(peer string) {
sshPeersRemoved = append(sshPeersRemoved, peer)
},
}, nil
}
err = engine.Start()
if err != nil {
t.Fatal(err)
}
defer func() {
err := engine.Stop()
if err != nil {
return
}
}()
peerWithSSH := &mgmtProto.RemotePeerConfig{
WgPubKey: "MNHf3Ma6z6mdLbriAJbqhX7+nM/B71lgw2+91q3LfhU=",
AllowedIps: []string{"100.64.0.21/24"},
SshConfig: &mgmtProto.SSHConfig{
SshPubKey: []byte("ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIFATYCqaQw/9id1Qkq3n16JYhDhXraI6Pc1fgB8ynEfQ"),
},
}
// SSH server is not enabled so SSH config of a remote peer should be ignored
networkMap := &mgmtProto.NetworkMap{
Serial: 6,
PeerConfig: nil,
RemotePeers: []*mgmtProto.RemotePeerConfig{peerWithSSH},
RemotePeersIsEmpty: false,
}
err = engine.updateNetworkMap(networkMap)
if err != nil {
t.Fatal(err)
}
assert.Nil(t, engine.sshServer)
// SSH server is enabled, therefore SSH config should be applied
networkMap = &mgmtProto.NetworkMap{
Serial: 7,
PeerConfig: &mgmtProto.PeerConfig{Address: "100.64.0.1/24",
SshConfig: &mgmtProto.SSHConfig{SshEnabled: true}},
RemotePeers: []*mgmtProto.RemotePeerConfig{peerWithSSH},
RemotePeersIsEmpty: false,
}
err = engine.updateNetworkMap(networkMap)
if err != nil {
t.Fatal(err)
}
time.Sleep(250 * time.Millisecond)
assert.NotNil(t, engine.sshServer)
assert.Contains(t, sshKeysAdded, "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIFATYCqaQw/9id1Qkq3n16JYhDhXraI6Pc1fgB8ynEfQ")
// now remove peer
networkMap = &mgmtProto.NetworkMap{
Serial: 8,
RemotePeers: []*mgmtProto.RemotePeerConfig{},
RemotePeersIsEmpty: false,
}
err = engine.updateNetworkMap(networkMap)
if err != nil {
t.Fatal(err)
}
//time.Sleep(250 * time.Millisecond)
assert.NotNil(t, engine.sshServer)
assert.Contains(t, sshPeersRemoved, "MNHf3Ma6z6mdLbriAJbqhX7+nM/B71lgw2+91q3LfhU=")
// now disable SSH server
networkMap = &mgmtProto.NetworkMap{
Serial: 9,
PeerConfig: &mgmtProto.PeerConfig{Address: "100.64.0.1/24",
SshConfig: &mgmtProto.SSHConfig{SshEnabled: false}},
RemotePeers: []*mgmtProto.RemotePeerConfig{peerWithSSH},
RemotePeersIsEmpty: false,
}
err = engine.updateNetworkMap(networkMap)
if err != nil {
t.Fatal(err)
}
assert.Nil(t, engine.sshServer)
}
func TestEngine_UpdateNetworkMap(t *testing.T) {
// test setup
key, err := wgtypes.GeneratePrivateKey()
@@ -52,11 +199,16 @@ func TestEngine_UpdateNetworkMap(t *testing.T) {
defer cancel()
engine := NewEngine(ctx, cancel, &signal.MockClient{}, &mgmt.MockClient{}, &EngineConfig{
WgIfaceName: "utun100",
WgIfaceName: "utun102",
WgAddr: "100.64.0.1/24",
WgPrivateKey: key,
WgPort: 33100,
})
}, nbstatus.NewRecorder())
engine.wgInterface, err = iface.NewWGIFace("utun102", "100.64.0.1/24", iface.DefaultMTU)
engine.routeManager = routemanager.NewManager(ctx, key.PublicKey().String(), engine.wgInterface, engine.statusRecorder)
engine.dnsServer = &dns.MockServer{
UpdateDNSServerFunc: func(serial uint64, update nbdns.Config) error { return nil },
}
type testCase struct {
name string
@@ -231,11 +383,15 @@ func TestEngine_Sync(t *testing.T) {
}
engine := NewEngine(ctx, cancel, &signal.MockClient{}, &mgmt.MockClient{SyncFunc: syncFunc}, &EngineConfig{
WgIfaceName: "utun100",
WgIfaceName: "utun103",
WgAddr: "100.64.0.1/24",
WgPrivateKey: key,
WgPort: 33100,
})
}, nbstatus.NewRecorder())
engine.dnsServer = &dns.MockServer{
UpdateDNSServerFunc: func(serial uint64, update nbdns.Config) error { return nil },
}
defer func() {
err := engine.Stop()
@@ -287,6 +443,320 @@ func TestEngine_Sync(t *testing.T) {
}
}
func TestEngine_UpdateNetworkMapWithRoutes(t *testing.T) {
testCases := []struct {
name string
inputErr error
networkMap *mgmtProto.NetworkMap
expectedLen int
expectedRoutes []*route.Route
expectedSerial uint64
}{
{
name: "Routes Config Should Be Passed To Manager",
networkMap: &mgmtProto.NetworkMap{
Serial: 1,
PeerConfig: nil,
RemotePeersIsEmpty: false,
Routes: []*mgmtProto.Route{
{
ID: "a",
Network: "192.168.0.0/24",
NetID: "n1",
Peer: "p1",
NetworkType: 1,
Masquerade: false,
},
{
ID: "b",
Network: "192.168.1.0/24",
NetID: "n2",
Peer: "p1",
NetworkType: 1,
Masquerade: false,
},
},
},
expectedLen: 2,
expectedRoutes: []*route.Route{
{
ID: "a",
Network: netip.MustParsePrefix("192.168.0.0/24"),
NetID: "n1",
Peer: "p1",
NetworkType: 1,
Masquerade: false,
},
{
ID: "b",
Network: netip.MustParsePrefix("192.168.1.0/24"),
NetID: "n2",
Peer: "p1",
NetworkType: 1,
Masquerade: false,
},
},
expectedSerial: 1,
},
{
name: "Empty Routes Config Should Be Passed",
networkMap: &mgmtProto.NetworkMap{
Serial: 1,
PeerConfig: nil,
RemotePeersIsEmpty: false,
Routes: nil,
},
expectedLen: 0,
expectedRoutes: []*route.Route{},
expectedSerial: 1,
},
{
name: "Error Shouldn't Break Engine",
inputErr: fmt.Errorf("mocking error"),
networkMap: &mgmtProto.NetworkMap{
Serial: 1,
PeerConfig: nil,
RemotePeersIsEmpty: false,
Routes: nil,
},
expectedLen: 0,
expectedRoutes: []*route.Route{},
expectedSerial: 1,
},
}
for n, testCase := range testCases {
t.Run(testCase.name, func(t *testing.T) {
// test setup
key, err := wgtypes.GeneratePrivateKey()
if err != nil {
t.Fatal(err)
return
}
ctx, cancel := context.WithCancel(context.Background())
defer cancel()
wgIfaceName := fmt.Sprintf("utun%d", 104+n)
wgAddr := fmt.Sprintf("100.66.%d.1/24", n)
engine := NewEngine(ctx, cancel, &signal.MockClient{}, &mgmt.MockClient{}, &EngineConfig{
WgIfaceName: wgIfaceName,
WgAddr: wgAddr,
WgPrivateKey: key,
WgPort: 33100,
}, nbstatus.NewRecorder())
engine.wgInterface, err = iface.NewWGIFace(wgIfaceName, wgAddr, iface.DefaultMTU)
assert.NoError(t, err, "shouldn't return error")
input := struct {
inputSerial uint64
inputRoutes []*route.Route
}{}
mockRouteManager := &routemanager.MockManager{
UpdateRoutesFunc: func(updateSerial uint64, newRoutes []*route.Route) error {
input.inputSerial = updateSerial
input.inputRoutes = newRoutes
return testCase.inputErr
},
}
engine.routeManager = mockRouteManager
engine.dnsServer = &dns.MockServer{}
defer func() {
exitErr := engine.Stop()
if exitErr != nil {
return
}
}()
err = engine.updateNetworkMap(testCase.networkMap)
assert.NoError(t, err, "shouldn't return error")
assert.Equal(t, testCase.expectedSerial, input.inputSerial, "serial should match")
assert.Len(t, input.inputRoutes, testCase.expectedLen, "routes len should match")
assert.Equal(t, testCase.expectedRoutes, input.inputRoutes, "routes should match")
})
}
}
func TestEngine_UpdateNetworkMapWithDNSUpdate(t *testing.T) {
testCases := []struct {
name string
inputErr error
networkMap *mgmtProto.NetworkMap
expectedZonesLen int
expectedZones []nbdns.CustomZone
expectedNSGroupsLen int
expectedNSGroups []*nbdns.NameServerGroup
expectedSerial uint64
}{
{
name: "DNS Config Should Be Passed To DNS Server",
networkMap: &mgmtProto.NetworkMap{
Serial: 1,
PeerConfig: nil,
RemotePeersIsEmpty: false,
Routes: nil,
DNSConfig: &mgmtProto.DNSConfig{
ServiceEnable: true,
CustomZones: []*mgmtProto.CustomZone{
{
Domain: "netbird.cloud.",
Records: []*mgmtProto.SimpleRecord{
{
Name: "peer-a.netbird.cloud.",
Type: 1,
Class: nbdns.DefaultClass,
TTL: 300,
RData: "100.64.0.1",
},
},
},
},
NameServerGroups: []*mgmtProto.NameServerGroup{
{
Primary: true,
NameServers: []*mgmtProto.NameServer{
{
IP: "8.8.8.8",
NSType: 1,
Port: 53,
},
},
},
},
},
},
expectedZonesLen: 1,
expectedZones: []nbdns.CustomZone{
{
Domain: "netbird.cloud.",
Records: []nbdns.SimpleRecord{
{
Name: "peer-a.netbird.cloud.",
Type: 1,
Class: nbdns.DefaultClass,
TTL: 300,
RData: "100.64.0.1",
},
},
},
},
expectedNSGroupsLen: 1,
expectedNSGroups: []*nbdns.NameServerGroup{
{
Primary: true,
NameServers: []nbdns.NameServer{
{
IP: netip.MustParseAddr("8.8.8.8"),
NSType: 1,
Port: 53,
},
},
},
},
expectedSerial: 1,
},
{
name: "Empty DNS Config Should Be OK",
networkMap: &mgmtProto.NetworkMap{
Serial: 1,
PeerConfig: nil,
RemotePeersIsEmpty: false,
Routes: nil,
DNSConfig: nil,
},
expectedZonesLen: 0,
expectedZones: []nbdns.CustomZone{},
expectedNSGroupsLen: 0,
expectedNSGroups: []*nbdns.NameServerGroup{},
expectedSerial: 1,
},
{
name: "Error Shouldn't Break Engine",
inputErr: fmt.Errorf("mocking error"),
networkMap: &mgmtProto.NetworkMap{
Serial: 1,
PeerConfig: nil,
RemotePeersIsEmpty: false,
Routes: nil,
},
expectedZonesLen: 0,
expectedZones: []nbdns.CustomZone{},
expectedNSGroupsLen: 0,
expectedNSGroups: []*nbdns.NameServerGroup{},
expectedSerial: 1,
},
}
for n, testCase := range testCases {
t.Run(testCase.name, func(t *testing.T) {
// test setup
key, err := wgtypes.GeneratePrivateKey()
if err != nil {
t.Fatal(err)
return
}
ctx, cancel := context.WithCancel(context.Background())
defer cancel()
wgIfaceName := fmt.Sprintf("utun%d", 104+n)
wgAddr := fmt.Sprintf("100.66.%d.1/24", n)
engine := NewEngine(ctx, cancel, &signal.MockClient{}, &mgmt.MockClient{}, &EngineConfig{
WgIfaceName: wgIfaceName,
WgAddr: wgAddr,
WgPrivateKey: key,
WgPort: 33100,
}, nbstatus.NewRecorder())
engine.wgInterface, err = iface.NewWGIFace(wgIfaceName, wgAddr, iface.DefaultMTU)
assert.NoError(t, err, "shouldn't return error")
mockRouteManager := &routemanager.MockManager{
UpdateRoutesFunc: func(updateSerial uint64, newRoutes []*route.Route) error {
return nil
},
}
engine.routeManager = mockRouteManager
input := struct {
inputSerial uint64
inputNSGroups []*nbdns.NameServerGroup
inputZones []nbdns.CustomZone
}{}
mockDNSServer := &dns.MockServer{
UpdateDNSServerFunc: func(serial uint64, update nbdns.Config) error {
input.inputSerial = serial
input.inputZones = update.CustomZones
input.inputNSGroups = update.NameServerGroups
return testCase.inputErr
},
}
engine.dnsServer = mockDNSServer
defer func() {
exitErr := engine.Stop()
if exitErr != nil {
return
}
}()
err = engine.updateNetworkMap(testCase.networkMap)
assert.NoError(t, err, "shouldn't return error")
assert.Equal(t, testCase.expectedSerial, input.inputSerial, "serial should match")
assert.Len(t, input.inputNSGroups, testCase.expectedZonesLen, "zones len should match")
assert.Equal(t, testCase.expectedZones, input.inputZones, "custom zones should match")
assert.Len(t, input.inputNSGroups, testCase.expectedNSGroupsLen, "ns groups len should match")
assert.Equal(t, testCase.expectedNSGroups, input.inputNSGroups, "ns groups should match")
})
}
}
func TestEngine_MultiplePeers(t *testing.T) {
// log.SetLevel(log.DebugLevel)
@@ -339,6 +809,7 @@ func TestEngine_MultiplePeers(t *testing.T) {
t.Errorf("unable to create the engine for peer %d with error %v", j, err)
return
}
engine.dnsServer = &dns.MockServer{}
mu.Lock()
defer mu.Unlock()
err = engine.Start()
@@ -418,7 +889,7 @@ func createEngine(ctx context.Context, cancel context.CancelFunc, setupKey strin
}
info := system.GetInfo(ctx)
resp, err := mgmtClient.Register(*publicKey, setupKey, "", info)
resp, err := mgmtClient.Register(*publicKey, setupKey, "", info, nil)
if err != nil {
return nil, err
}
@@ -438,7 +909,7 @@ func createEngine(ctx context.Context, cancel context.CancelFunc, setupKey strin
WgPort: wgPort,
}
return NewEngine(ctx, cancel, signalClient, mgmtClient, conf), nil
return NewEngine(ctx, cancel, signalClient, mgmtClient, conf, nbstatus.NewRecorder()), nil
}
func startSignal(port int) (*grpc.Server, error) {
@@ -477,17 +948,17 @@ func startManagement(port int, dataDir string) (*grpc.Server, error) {
return nil, err
}
s := grpc.NewServer(grpc.KeepaliveEnforcementPolicy(kaep), grpc.KeepaliveParams(kasp))
store, err := server.NewStore(config.Datadir)
store, err := server.NewFileStore(config.Datadir)
if err != nil {
log.Fatalf("failed creating a store: %s: %v", config.Datadir, err)
}
peersUpdateManager := server.NewPeersUpdateManager()
accountManager, err := server.BuildManager(store, peersUpdateManager, nil)
accountManager, err := server.BuildManager(store, peersUpdateManager, nil, "", "")
if err != nil {
return nil, err
}
turnManager := server.NewTimeBasedAuthSecretsManager(peersUpdateManager, config.TURNConfig)
mgmtServer, err := server.NewServer(config, accountManager, peersUpdateManager, turnManager)
mgmtServer, err := server.NewServer(config, accountManager, peersUpdateManager, turnManager, nil)
if err != nil {
return nil, err
}

View File

@@ -2,8 +2,8 @@ package internal
import (
"context"
"github.com/google/uuid"
"github.com/netbirdio/netbird/client/ssh"
"github.com/netbirdio/netbird/client/system"
mgm "github.com/netbirdio/netbird/management/client"
mgmProto "github.com/netbirdio/netbird/management/proto"
@@ -26,13 +26,22 @@ func Login(ctx context.Context, config *Config, setupKey string, jwtToken string
mgmTlsEnabled = true
}
log.Debugf("connecting to Management Service %s", config.ManagementURL.String())
log.Debugf("connecting to the Management service %s", config.ManagementURL.String())
mgmClient, err := mgm.NewClient(ctx, config.ManagementURL.Host, myPrivateKey, mgmTlsEnabled)
if err != nil {
log.Errorf("failed connecting to Management Service %s %v", config.ManagementURL.String(), err)
log.Errorf("failed connecting to the Management service %s %v", config.ManagementURL.String(), err)
return err
}
log.Debugf("connected to management Service %s", config.ManagementURL.String())
log.Debugf("connected to the Management service %s", config.ManagementURL.String())
defer func() {
err = mgmClient.Close()
if err != nil {
cStatus, ok := status.FromError(err)
if !ok || ok && cStatus.Code() != codes.Canceled {
log.Warnf("failed to close the Management service client, err: %v", err)
}
}
}()
serverKey, err := mgmClient.GetServerPublicKey()
if err != nil {
@@ -40,15 +49,20 @@ func Login(ctx context.Context, config *Config, setupKey string, jwtToken string
return err
}
_, err = loginPeer(ctx, *serverKey, mgmClient, setupKey, jwtToken)
pubSSHKey, err := ssh.GeneratePublicKey([]byte(config.SSHKey))
if err != nil {
return err
}
_, err = loginPeer(ctx, *serverKey, mgmClient, setupKey, jwtToken, pubSSHKey)
if err != nil {
log.Errorf("failed logging-in peer on Management Service : %v", err)
return err
}
log.Infof("peer has successfully logged-in to the Management service %s", config.ManagementURL.String())
err = mgmClient.Close()
if err != nil {
log.Errorf("failed closing Management Service client: %v", err)
log.Errorf("failed to close the Management service client: %v", err)
return err
}
@@ -56,26 +70,24 @@ func Login(ctx context.Context, config *Config, setupKey string, jwtToken string
}
// loginPeer attempts to login to Management Service. If peer wasn't registered, tries the registration flow.
func loginPeer(ctx context.Context, serverPublicKey wgtypes.Key, client *mgm.GrpcClient, setupKey string, jwtToken string) (*mgmProto.LoginResponse, error) {
func loginPeer(ctx context.Context, serverPublicKey wgtypes.Key, client *mgm.GrpcClient, setupKey string, jwtToken string, pubSSHKey []byte) (*mgmProto.LoginResponse, error) {
sysInfo := system.GetInfo(ctx)
loginResp, err := client.Login(serverPublicKey, sysInfo)
loginResp, err := client.Login(serverPublicKey, sysInfo, pubSSHKey)
if err != nil {
if s, ok := status.FromError(err); ok && s.Code() == codes.PermissionDenied {
log.Debugf("peer registration required")
return registerPeer(ctx, serverPublicKey, client, setupKey, jwtToken)
return registerPeer(ctx, serverPublicKey, client, setupKey, jwtToken, pubSSHKey)
} else {
return nil, err
}
}
log.Info("peer has successfully logged-in to Management Service")
return loginResp, nil
}
// registerPeer checks whether setupKey was provided via cmd line and if not then it prompts user to enter a key.
// Otherwise tries to register with the provided setupKey via command line.
func registerPeer(ctx context.Context, serverPublicKey wgtypes.Key, client *mgm.GrpcClient, setupKey string, jwtToken string) (*mgmProto.LoginResponse, error) {
func registerPeer(ctx context.Context, serverPublicKey wgtypes.Key, client *mgm.GrpcClient, setupKey string, jwtToken string, pubSSHKey []byte) (*mgmProto.LoginResponse, error) {
validSetupKey, err := uuid.Parse(setupKey)
if err != nil && jwtToken == "" {
return nil, status.Errorf(codes.InvalidArgument, "invalid setup-key or no sso information provided, err: %v", err)
@@ -83,7 +95,7 @@ func registerPeer(ctx context.Context, serverPublicKey wgtypes.Key, client *mgm.
log.Debugf("sending peer registration request to Management Service")
info := system.GetInfo(ctx)
loginResp, err := client.Register(serverPublicKey, validSetupKey.String(), jwtToken, info)
loginResp, err := client.Register(serverPublicKey, validSetupKey.String(), jwtToken, info, pubSSHKey)
if err != nil {
log.Errorf("failed registering peer %v,%s", err, validSetupKey.String())
return nil, err

View File

@@ -5,8 +5,10 @@ import (
"encoding/base64"
"encoding/json"
"fmt"
"io/ioutil"
"io"
"net/http"
"net/url"
"reflect"
"strings"
"time"
)
@@ -14,7 +16,6 @@ import (
// OAuthClient is a OAuth client interface for various idp providers
type OAuthClient interface {
RequestDeviceCode(ctx context.Context) (DeviceAuthInfo, error)
RotateAccessToken(ctx context.Context, refreshToken string) (TokenInfo, error)
WaitToken(ctx context.Context, info DeviceAuthInfo) (TokenInfo, error)
GetClientID(ctx context.Context) string
}
@@ -55,8 +56,10 @@ type Hosted struct {
Audience string
// Hosted Native application client id
ClientID string
// Hosted domain
Domain string
// TokenEndpoint to request access token
TokenEndpoint string
// DeviceAuthEndpoint to request device authorization code
DeviceAuthEndpoint string
HTTPClient HTTPClient
}
@@ -84,11 +87,11 @@ type TokenRequestResponse struct {
// Claims used when validating the access token
type Claims struct {
Audience string `json:"aud"`
Audience interface{} `json:"aud"`
}
// NewHostedDeviceFlow returns an Hosted OAuth client
func NewHostedDeviceFlow(audience string, clientID string, domain string) *Hosted {
func NewHostedDeviceFlow(audience string, clientID string, tokenEndpoint string, deviceAuthEndpoint string) *Hosted {
httpTransport := http.DefaultTransport.(*http.Transport).Clone()
httpTransport.MaxIdleConns = 5
@@ -98,10 +101,11 @@ func NewHostedDeviceFlow(audience string, clientID string, domain string) *Hoste
}
return &Hosted{
Audience: audience,
ClientID: clientID,
Domain: domain,
HTTPClient: httpClient,
Audience: audience,
ClientID: clientID,
TokenEndpoint: tokenEndpoint,
HTTPClient: httpClient,
DeviceAuthEndpoint: deviceAuthEndpoint,
}
}
@@ -112,22 +116,15 @@ func (h *Hosted) GetClientID(ctx context.Context) string {
// RequestDeviceCode requests a device code login flow information from Hosted
func (h *Hosted) RequestDeviceCode(ctx context.Context) (DeviceAuthInfo, error) {
url := "https://" + h.Domain + "/oauth/device/code"
codePayload := RequestDeviceCodePayload{
Audience: h.Audience,
ClientID: h.ClientID,
}
p, err := json.Marshal(codePayload)
if err != nil {
return DeviceAuthInfo{}, fmt.Errorf("parsing payload failed with error: %v", err)
}
payload := strings.NewReader(string(p))
req, err := http.NewRequest("POST", url, payload)
form := url.Values{}
form.Add("client_id", h.ClientID)
form.Add("audience", h.Audience)
req, err := http.NewRequest("POST", h.DeviceAuthEndpoint,
strings.NewReader(form.Encode()))
if err != nil {
return DeviceAuthInfo{}, fmt.Errorf("creating request failed with error: %v", err)
}
req.Header.Add("content-type", "application/json")
req.Header.Add("Content-Type", "application/x-www-form-urlencoded")
res, err := h.HTTPClient.Do(req)
if err != nil {
@@ -135,7 +132,7 @@ func (h *Hosted) RequestDeviceCode(ctx context.Context) (DeviceAuthInfo, error)
}
defer res.Body.Close()
body, err := ioutil.ReadAll(res.Body)
body, err := io.ReadAll(res.Body)
if err != nil {
return DeviceAuthInfo{}, fmt.Errorf("reading body failed with error: %v", err)
}
@@ -153,6 +150,48 @@ func (h *Hosted) RequestDeviceCode(ctx context.Context) (DeviceAuthInfo, error)
return deviceCode, err
}
func (h *Hosted) requestToken(info DeviceAuthInfo) (TokenRequestResponse, error) {
form := url.Values{}
form.Add("client_id", h.ClientID)
form.Add("grant_type", HostedGrantType)
form.Add("device_code", info.DeviceCode)
req, err := http.NewRequest("POST", h.TokenEndpoint, strings.NewReader(form.Encode()))
if err != nil {
return TokenRequestResponse{}, fmt.Errorf("failed to create request access token: %v", err)
}
req.Header.Add("Content-Type", "application/x-www-form-urlencoded")
res, err := h.HTTPClient.Do(req)
if err != nil {
return TokenRequestResponse{}, fmt.Errorf("failed to request access token with error: %v", err)
}
defer func() {
err := res.Body.Close()
if err != nil {
return
}
}()
body, err := io.ReadAll(res.Body)
if err != nil {
return TokenRequestResponse{}, fmt.Errorf("failed reading access token response body with error: %v", err)
}
if res.StatusCode > 499 {
return TokenRequestResponse{}, fmt.Errorf("access token response returned code: %s", string(body))
}
tokenResponse := TokenRequestResponse{}
err = json.Unmarshal(body, &tokenResponse)
if err != nil {
return TokenRequestResponse{}, fmt.Errorf("parsing token response failed with error: %v", err)
}
return tokenResponse, nil
}
// WaitToken waits user's login and authorize the app. Once the user's authorize
// it retrieves the access token from Hosted's endpoint and validates it before returning
func (h *Hosted) WaitToken(ctx context.Context, info DeviceAuthInfo) (TokenInfo, error) {
@@ -163,24 +202,8 @@ func (h *Hosted) WaitToken(ctx context.Context, info DeviceAuthInfo) (TokenInfo,
case <-ctx.Done():
return TokenInfo{}, ctx.Err()
case <-ticker.C:
url := "https://" + h.Domain + "/oauth/token"
tokenReqPayload := TokenRequestPayload{
GrantType: HostedGrantType,
DeviceCode: info.DeviceCode,
ClientID: h.ClientID,
}
body, statusCode, err := requestToken(h.HTTPClient, url, tokenReqPayload)
if err != nil {
return TokenInfo{}, fmt.Errorf("wait for token: %v", err)
}
if statusCode > 499 {
return TokenInfo{}, fmt.Errorf("wait token code returned error: %s", string(body))
}
tokenResponse := TokenRequestResponse{}
err = json.Unmarshal(body, &tokenResponse)
tokenResponse, err := h.requestToken(info)
if err != nil {
return TokenInfo{}, fmt.Errorf("parsing token response failed with error: %v", err)
}
@@ -214,71 +237,6 @@ func (h *Hosted) WaitToken(ctx context.Context, info DeviceAuthInfo) (TokenInfo,
}
}
// RotateAccessToken requests a new token using an existing refresh token
func (h *Hosted) RotateAccessToken(ctx context.Context, refreshToken string) (TokenInfo, error) {
url := "https://" + h.Domain + "/oauth/token"
tokenReqPayload := TokenRequestPayload{
GrantType: HostedRefreshGrant,
ClientID: h.ClientID,
RefreshToken: refreshToken,
}
body, statusCode, err := requestToken(h.HTTPClient, url, tokenReqPayload)
if err != nil {
return TokenInfo{}, fmt.Errorf("rotate access token: %v", err)
}
if statusCode != 200 {
return TokenInfo{}, fmt.Errorf("rotating token returned error: %s", string(body))
}
tokenResponse := TokenRequestResponse{}
err = json.Unmarshal(body, &tokenResponse)
if err != nil {
return TokenInfo{}, fmt.Errorf("parsing token response failed with error: %v", err)
}
err = isValidAccessToken(tokenResponse.AccessToken, h.Audience)
if err != nil {
return TokenInfo{}, fmt.Errorf("validate access token failed with error: %v", err)
}
tokenInfo := TokenInfo{
AccessToken: tokenResponse.AccessToken,
TokenType: tokenResponse.TokenType,
RefreshToken: tokenResponse.RefreshToken,
IDToken: tokenResponse.IDToken,
ExpiresIn: tokenResponse.ExpiresIn,
}
return tokenInfo, err
}
func requestToken(client HTTPClient, url string, tokenReqPayload TokenRequestPayload) ([]byte, int, error) {
p, err := json.Marshal(tokenReqPayload)
if err != nil {
return nil, 0, fmt.Errorf("parsing token payload failed with error: %v", err)
}
payload := strings.NewReader(string(p))
req, err := http.NewRequest("POST", url, payload)
if err != nil {
return nil, 0, fmt.Errorf("creating token request failed with error: %v", err)
}
req.Header.Add("content-type", "application/json")
res, err := client.Do(req)
if err != nil {
return nil, 0, fmt.Errorf("doing token request failed with error: %v", err)
}
defer res.Body.Close()
body, err := ioutil.ReadAll(res.Body)
if err != nil {
return nil, 0, fmt.Errorf("reading token body failed with error: %v", err)
}
return body, res.StatusCode, nil
}
// isValidAccessToken is a simple validation of the access token
func isValidAccessToken(token string, audience string) error {
if token == "" {
@@ -297,9 +255,24 @@ func isValidAccessToken(token string, audience string) error {
return err
}
if claims.Audience != audience {
return fmt.Errorf("invalid audience")
if claims.Audience == nil {
return fmt.Errorf("required token field audience is absent")
}
return nil
// Audience claim of JWT can be a string or an array of strings
typ := reflect.TypeOf(claims.Audience)
switch typ.Kind() {
case reflect.String:
if claims.Audience == audience {
return nil
}
case reflect.Slice:
for _, aud := range claims.Audience.([]interface{}) {
if audience == aud {
return nil
}
}
}
return fmt.Errorf("invalid JWT token audience field")
}

View File

@@ -2,12 +2,12 @@ package internal
import (
"context"
"encoding/json"
"fmt"
"github.com/golang-jwt/jwt"
"github.com/stretchr/testify/require"
"io/ioutil"
"io"
"net/http"
"net/url"
"strings"
"testing"
"time"
@@ -24,7 +24,7 @@ type mockHTTPClient struct {
}
func (c *mockHTTPClient) Do(req *http.Request) (*http.Response, error) {
body, err := ioutil.ReadAll(req.Body)
body, err := io.ReadAll(req.Body)
if err == nil {
c.reqBody = string(body)
}
@@ -33,13 +33,13 @@ func (c *mockHTTPClient) Do(req *http.Request) (*http.Response, error) {
c.count++
return &http.Response{
StatusCode: c.code,
Body: ioutil.NopCloser(strings.NewReader(c.countResBody)),
Body: io.NopCloser(strings.NewReader(c.countResBody)),
}, c.err
}
return &http.Response{
StatusCode: c.code,
Body: ioutil.NopCloser(strings.NewReader(c.resBody)),
Body: io.NopCloser(strings.NewReader(c.resBody)),
}, c.err
}
@@ -54,15 +54,19 @@ func TestHosted_RequestDeviceCode(t *testing.T) {
testingFunc require.ComparisonAssertionFunc
expectedOut DeviceAuthInfo
expectedMSG string
expectPayload RequestDeviceCodePayload
expectPayload string
}
expectedAudience := "ok"
expectedClientID := "bla"
form := url.Values{}
form.Add("audience", expectedAudience)
form.Add("client_id", expectedClientID)
expectPayload := form.Encode()
testCase1 := test{
name: "Payload Is Valid",
expectPayload: RequestDeviceCodePayload{
Audience: "ok",
ClientID: "bla",
},
name: "Payload Is Valid",
expectPayload: expectPayload,
inputReqCode: 200,
testingErrFunc: require.Error,
testingFunc: require.EqualValues,
@@ -74,6 +78,7 @@ func TestHosted_RequestDeviceCode(t *testing.T) {
testingErrFunc: require.Error,
expectedErrorMSG: "should return error",
testingFunc: require.EqualValues,
expectPayload: expectPayload,
}
testCase3 := test{
@@ -82,15 +87,13 @@ func TestHosted_RequestDeviceCode(t *testing.T) {
testingErrFunc: require.Error,
expectedErrorMSG: "should return error",
testingFunc: require.EqualValues,
expectPayload: expectPayload,
}
testCase4Out := DeviceAuthInfo{ExpiresIn: 10}
testCase4 := test{
name: "Got Device Code",
inputResBody: fmt.Sprintf("{\"expires_in\":%d}", testCase4Out.ExpiresIn),
expectPayload: RequestDeviceCodePayload{
Audience: "ok",
ClientID: "bla",
},
name: "Got Device Code",
inputResBody: fmt.Sprintf("{\"expires_in\":%d}", testCase4Out.ExpiresIn),
expectPayload: expectPayload,
inputReqCode: 200,
testingErrFunc: require.NoError,
testingFunc: require.EqualValues,
@@ -108,18 +111,17 @@ func TestHosted_RequestDeviceCode(t *testing.T) {
}
hosted := Hosted{
Audience: testCase.expectPayload.Audience,
ClientID: testCase.expectPayload.ClientID,
Domain: "test.hosted.com",
HTTPClient: &httpClient,
Audience: expectedAudience,
ClientID: expectedClientID,
TokenEndpoint: "test.hosted.com/token",
DeviceAuthEndpoint: "test.hosted.com/device/auth",
HTTPClient: &httpClient,
}
authInfo, err := hosted.RequestDeviceCode(context.TODO())
testCase.testingErrFunc(t, err, testCase.expectedErrorMSG)
payload, _ := json.Marshal(testCase.expectPayload)
require.EqualValues(t, string(payload), httpClient.reqBody, "payload should match")
require.EqualValues(t, expectPayload, httpClient.reqBody, "payload should match")
testCase.testingFunc(t, testCase.expectedOut, authInfo, testCase.expectedMSG)
@@ -143,7 +145,7 @@ func TestHosted_WaitToken(t *testing.T) {
testingFunc require.ComparisonAssertionFunc
expectedOut TokenInfo
expectedMSG string
expectPayload TokenRequestPayload
expectPayload string
}
defaultInfo := DeviceAuthInfo{
@@ -152,11 +154,13 @@ func TestHosted_WaitToken(t *testing.T) {
Interval: 1,
}
tokenReqPayload := TokenRequestPayload{
GrantType: HostedGrantType,
DeviceCode: defaultInfo.DeviceCode,
ClientID: "test",
}
clientID := "test"
form := url.Values{}
form.Add("grant_type", HostedGrantType)
form.Add("device_code", defaultInfo.DeviceCode)
form.Add("client_id", clientID)
tokenReqPayload := form.Encode()
testCase1 := test{
name: "Payload Is Valid",
@@ -268,10 +272,11 @@ func TestHosted_WaitToken(t *testing.T) {
}
hosted := Hosted{
Audience: testCase.inputAudience,
ClientID: testCase.expectPayload.ClientID,
Domain: "test.hosted.com",
HTTPClient: &httpClient,
Audience: testCase.inputAudience,
ClientID: clientID,
TokenEndpoint: "test.hosted.com/token",
DeviceAuthEndpoint: "test.hosted.com/device/auth",
HTTPClient: &httpClient,
}
ctx, cancel := context.WithTimeout(context.TODO(), testCase.inputTimeout)
@@ -279,12 +284,7 @@ func TestHosted_WaitToken(t *testing.T) {
tokenInfo, err := hosted.WaitToken(ctx, testCase.inputInfo)
testCase.testingErrFunc(t, err, testCase.expectedErrorMSG)
var payload []byte
var emptyPayload TokenRequestPayload
if testCase.expectPayload != emptyPayload {
payload, _ = json.Marshal(testCase.expectPayload)
}
require.EqualValues(t, string(payload), httpClient.reqBody, "payload should match")
require.EqualValues(t, testCase.expectPayload, httpClient.reqBody, "payload should match")
testCase.testingFunc(t, testCase.expectedOut, tokenInfo, testCase.expectedMSG)
@@ -293,123 +293,3 @@ func TestHosted_WaitToken(t *testing.T) {
})
}
}
func TestHosted_RotateAccessToken(t *testing.T) {
type test struct {
name string
inputResBody string
inputReqCode int
inputReqError error
inputMaxReqs int
inputInfo DeviceAuthInfo
inputAudience string
testingErrFunc require.ErrorAssertionFunc
expectedErrorMSG string
testingFunc require.ComparisonAssertionFunc
expectedOut TokenInfo
expectedMSG string
expectPayload TokenRequestPayload
}
defaultInfo := DeviceAuthInfo{
DeviceCode: "test",
ExpiresIn: 10,
Interval: 1,
}
tokenReqPayload := TokenRequestPayload{
GrantType: HostedRefreshGrant,
ClientID: "test",
RefreshToken: "refresh_test",
}
testCase1 := test{
name: "Payload Is Valid",
inputInfo: defaultInfo,
inputReqCode: 200,
testingErrFunc: require.Error,
testingFunc: require.EqualValues,
expectPayload: tokenReqPayload,
}
testCase2 := test{
name: "Exit On Network Error",
inputInfo: defaultInfo,
expectPayload: tokenReqPayload,
inputReqError: fmt.Errorf("error"),
testingErrFunc: require.Error,
expectedErrorMSG: "should return error",
testingFunc: require.EqualValues,
}
testCase3 := test{
name: "Exit On Non 200 Status Code",
inputInfo: defaultInfo,
inputReqCode: 401,
expectPayload: tokenReqPayload,
testingErrFunc: require.Error,
expectedErrorMSG: "should return error",
testingFunc: require.EqualValues,
}
audience := "test"
token := jwt.NewWithClaims(jwt.SigningMethodHS256, jwt.MapClaims{"aud": audience})
var hmacSampleSecret []byte
tokenString, _ := token.SignedString(hmacSampleSecret)
testCase4 := test{
name: "Exit On Invalid Audience",
inputInfo: defaultInfo,
inputResBody: fmt.Sprintf("{\"access_token\":\"%s\"}", tokenString),
inputReqCode: 200,
inputAudience: "super test",
testingErrFunc: require.Error,
testingFunc: require.EqualValues,
expectPayload: tokenReqPayload,
}
testCase5 := test{
name: "Received Token Info",
inputInfo: defaultInfo,
inputResBody: fmt.Sprintf("{\"access_token\":\"%s\"}", tokenString),
inputReqCode: 200,
inputAudience: audience,
testingErrFunc: require.NoError,
testingFunc: require.EqualValues,
expectPayload: tokenReqPayload,
expectedOut: TokenInfo{AccessToken: tokenString},
}
for _, testCase := range []test{testCase1, testCase2, testCase3, testCase4, testCase5} {
t.Run(testCase.name, func(t *testing.T) {
httpClient := mockHTTPClient{
resBody: testCase.inputResBody,
code: testCase.inputReqCode,
err: testCase.inputReqError,
MaxReqs: testCase.inputMaxReqs,
}
hosted := Hosted{
Audience: testCase.inputAudience,
ClientID: testCase.expectPayload.ClientID,
Domain: "test.hosted.com",
HTTPClient: &httpClient,
}
tokenInfo, err := hosted.RotateAccessToken(context.TODO(), testCase.expectPayload.RefreshToken)
testCase.testingErrFunc(t, err, testCase.expectedErrorMSG)
var payload []byte
var emptyPayload TokenRequestPayload
if testCase.expectPayload != emptyPayload {
payload, _ = json.Marshal(testCase.expectPayload)
}
require.EqualValues(t, string(payload), httpClient.reqBody, "payload should match")
testCase.testingFunc(t, testCase.expectedOut, tokenInfo, testCase.expectedMSG)
})
}
}

View File

@@ -2,16 +2,18 @@ package peer
import (
"context"
"github.com/netbirdio/netbird/iface"
"golang.zx2c4.com/wireguard/wgctrl"
"net"
"strings"
"sync"
"time"
"github.com/netbirdio/netbird/client/internal/proxy"
nbStatus "github.com/netbirdio/netbird/client/status"
"github.com/netbirdio/netbird/client/system"
"github.com/netbirdio/netbird/iface"
"github.com/pion/ice/v2"
log "github.com/sirupsen/logrus"
"golang.zx2c4.com/wireguard/wgctrl"
)
// ConnConfig is a peer Connection configuration
@@ -27,7 +29,8 @@ type ConnConfig struct {
// InterfaceBlackList is a list of machine interfaces that should be filtered out by ICE Candidate gathering
// (e.g. if eth0 is in the list, host candidate of this interface won't be used)
InterfaceBlackList []string
InterfaceBlackList []string
DisableIPv6Discovery bool
Timeout time.Duration
@@ -35,6 +38,22 @@ type ConnConfig struct {
UDPMux ice.UDPMux
UDPMuxSrflx ice.UniversalUDPMux
LocalWgPort int
NATExternalIPs []string
}
// OfferAnswer represents a session establishment offer or answer
type OfferAnswer struct {
IceCredentials IceCredentials
// WgListenPort is a remote WireGuard listen port.
// This field is used when establishing a direct WireGuard connection without any proxy.
// We can set the remote peer's endpoint with this port.
WgListenPort int
// Version of NetBird Agent
Version string
}
// IceCredentials ICE protocol credentials struct
@@ -50,13 +69,13 @@ type Conn struct {
// signalCandidate is a handler function to signal remote peer about local connection candidate
signalCandidate func(candidate ice.Candidate) error
// signalOffer is a handler function to signal remote peer our connection offer (credentials)
signalOffer func(uFrag string, pwd string) error
signalAnswer func(uFrag string, pwd string) error
signalOffer func(OfferAnswer) error
signalAnswer func(OfferAnswer) error
// remoteOffersCh is a channel used to wait for remote credentials to proceed with the connection
remoteOffersCh chan IceCredentials
remoteOffersCh chan OfferAnswer
// remoteAnswerCh is a channel used to wait for remote credentials answer (confirmation of our offer) to proceed with the connection
remoteAnswerCh chan IceCredentials
remoteAnswerCh chan OfferAnswer
closeCh chan struct{}
ctx context.Context
notifyDisconnected context.CancelFunc
@@ -64,6 +83,8 @@ type Conn struct {
agent *ice.Agent
status ConnStatus
statusRecorder *nbStatus.Status
proxy proxy.Proxy
}
@@ -72,16 +93,22 @@ func (conn *Conn) GetConf() ConnConfig {
return conn.config
}
// UpdateConf updates the connection config
func (conn *Conn) UpdateConf(conf ConnConfig) {
conn.config = conf
}
// NewConn creates a new not opened Conn to the remote peer.
// To establish a connection run Conn.Open
func NewConn(config ConnConfig) (*Conn, error) {
func NewConn(config ConnConfig, statusRecorder *nbStatus.Status) (*Conn, error) {
return &Conn{
config: config,
mu: sync.Mutex{},
status: StatusDisconnected,
closeCh: make(chan struct{}),
remoteOffersCh: make(chan IceCredentials),
remoteAnswerCh: make(chan IceCredentials),
remoteOffersCh: make(chan OfferAnswer),
remoteAnswerCh: make(chan OfferAnswer),
statusRecorder: statusRecorder,
}, nil
}
@@ -119,16 +146,24 @@ func (conn *Conn) reCreateAgent() error {
failedTimeout := 6 * time.Second
var err error
conn.agent, err = ice.NewAgent(&ice.AgentConfig{
agentConfig := &ice.AgentConfig{
MulticastDNSMode: ice.MulticastDNSModeDisabled,
NetworkTypes: []ice.NetworkType{ice.NetworkTypeUDP4},
NetworkTypes: []ice.NetworkType{ice.NetworkTypeUDP4, ice.NetworkTypeUDP6},
Urls: conn.config.StunTurn,
CandidateTypes: []ice.CandidateType{ice.CandidateTypeHost, ice.CandidateTypeServerReflexive, ice.CandidateTypeRelay},
FailedTimeout: &failedTimeout,
InterfaceFilter: interfaceFilter(conn.config.InterfaceBlackList),
UDPMux: conn.config.UDPMux,
UDPMuxSrflx: conn.config.UDPMuxSrflx,
})
NAT1To1IPs: conn.config.NATExternalIPs,
}
if conn.config.DisableIPv6Discovery {
agentConfig.NetworkTypes = []ice.NetworkType{ice.NetworkTypeUDP4}
}
conn.agent, err = ice.NewAgent(agentConfig)
if err != nil {
return err
}
@@ -157,6 +192,17 @@ func (conn *Conn) reCreateAgent() error {
func (conn *Conn) Open() error {
log.Debugf("trying to connect to peer %s", conn.config.Key)
peerState := nbStatus.PeerState{PubKey: conn.config.Key}
peerState.IP = strings.Split(conn.config.ProxyConfig.AllowedIps, "/")[0]
peerState.ConnStatusUpdate = time.Now()
peerState.ConnStatus = conn.status.String()
err := conn.statusRecorder.UpdatePeerState(peerState)
if err != nil {
log.Warnf("erro while updating the state of peer %s,err: %v", conn.config.Key, err)
}
defer func() {
err := conn.cleanup()
if err != nil {
@@ -165,7 +211,7 @@ func (conn *Conn) Open() error {
}
}()
err := conn.reCreateAgent()
err = conn.reCreateAgent()
if err != nil {
return err
}
@@ -180,15 +226,15 @@ func (conn *Conn) Open() error {
// Only continue once we got a connection confirmation from the remote peer.
// The connection timeout could have happened before a confirmation received from the remote.
// The connection could have also been closed externally (e.g. when we received an update from the management that peer shouldn't be connected)
var remoteCredentials IceCredentials
var remoteOfferAnswer OfferAnswer
select {
case remoteCredentials = <-conn.remoteOffersCh:
case remoteOfferAnswer = <-conn.remoteOffersCh:
// received confirmation from the remote peer -> ready to proceed
err = conn.sendAnswer()
if err != nil {
return err
}
case remoteCredentials = <-conn.remoteAnswerCh:
case remoteOfferAnswer = <-conn.remoteAnswerCh:
case <-time.After(conn.config.Timeout):
return NewConnectionTimeoutError(conn.config.Key, conn.config.Timeout)
case <-conn.closeCh:
@@ -196,7 +242,8 @@ func (conn *Conn) Open() error {
return NewConnectionClosedError(conn.config.Key)
}
log.Debugf("received connection confirmation from peer %s", conn.config.Key)
log.Debugf("received connection confirmation from peer %s running version %s and with remote WireGuard listen port %d",
conn.config.Key, remoteOfferAnswer.Version, remoteOfferAnswer.WgListenPort)
// at this point we received offer/answer and we are ready to gather candidates
conn.mu.Lock()
@@ -205,6 +252,15 @@ func (conn *Conn) Open() error {
defer conn.notifyDisconnected()
conn.mu.Unlock()
peerState = nbStatus.PeerState{PubKey: conn.config.Key}
peerState.ConnStatus = conn.status.String()
peerState.ConnStatusUpdate = time.Now()
err = conn.statusRecorder.UpdatePeerState(peerState)
if err != nil {
log.Warnf("erro while updating the state of peer %s,err: %v", conn.config.Key, err)
}
err = conn.agent.GatherCandidates()
if err != nil {
return err
@@ -216,16 +272,21 @@ func (conn *Conn) Open() error {
isControlling := conn.config.LocalKey > conn.config.Key
var remoteConn *ice.Conn
if isControlling {
remoteConn, err = conn.agent.Dial(conn.ctx, remoteCredentials.UFrag, remoteCredentials.Pwd)
remoteConn, err = conn.agent.Dial(conn.ctx, remoteOfferAnswer.IceCredentials.UFrag, remoteOfferAnswer.IceCredentials.Pwd)
} else {
remoteConn, err = conn.agent.Accept(conn.ctx, remoteCredentials.UFrag, remoteCredentials.Pwd)
remoteConn, err = conn.agent.Accept(conn.ctx, remoteOfferAnswer.IceCredentials.UFrag, remoteOfferAnswer.IceCredentials.Pwd)
}
if err != nil {
return err
}
// the connection has been established successfully so we are ready to start the proxy
err = conn.startProxy(remoteConn)
// dynamically set remote WireGuard port is other side specified a different one from the default one
remoteWgPort := iface.DefaultWgPort
if remoteOfferAnswer.WgListenPort != 0 {
remoteWgPort = remoteOfferAnswer.WgListenPort
}
// the ice connection has been established successfully so we are ready to start the proxy
err = conn.startProxy(remoteConn, remoteWgPort)
if err != nil {
return err
}
@@ -234,7 +295,7 @@ func (conn *Conn) Open() error {
host, _, _ := net.SplitHostPort(remoteConn.LocalAddr().String())
rhost, _, _ := net.SplitHostPort(remoteConn.RemoteAddr().String())
// direct Wireguard connection
log.Infof("directly connected to peer %s [laddr <-> raddr] [%s:%d <-> %s:%d]", conn.config.Key, host, iface.DefaultWgPort, rhost, iface.DefaultWgPort)
log.Infof("directly connected to peer %s [laddr <-> raddr] [%s:%d <-> %s:%d]", conn.config.Key, host, conn.config.LocalWgPort, rhost, remoteWgPort)
} else {
log.Infof("connected to peer %s [laddr <-> raddr] [%s <-> %s]", conn.config.Key, remoteConn.LocalAddr().String(), remoteConn.RemoteAddr().String())
}
@@ -259,6 +320,10 @@ func shouldUseProxy(pair *ice.CandidatePair) bool {
remoteIsPublic := IsPublicIP(remoteIP)
myIsPublic := IsPublicIP(myIp)
if pair.Local.Type() == ice.CandidateTypeRelay || pair.Remote.Type() == ice.CandidateTypeRelay {
return true
}
//one of the hosts has a public IP
if remoteIsPublic && pair.Remote.Type() == ice.CandidateTypeHost {
return false
@@ -286,7 +351,7 @@ func IsPublicIP(ip net.IP) bool {
}
// startProxy starts proxying traffic from/to local Wireguard and sets connection status to StatusConnected
func (conn *Conn) startProxy(remoteConn net.Conn) error {
func (conn *Conn) startProxy(remoteConn net.Conn, remoteWgPort int) error {
conn.mu.Lock()
defer conn.mu.Unlock()
@@ -296,12 +361,15 @@ func (conn *Conn) startProxy(remoteConn net.Conn) error {
return err
}
peerState := nbStatus.PeerState{PubKey: conn.config.Key}
useProxy := shouldUseProxy(pair)
var p proxy.Proxy
if useProxy {
p = proxy.NewWireguardProxy(conn.config.ProxyConfig)
peerState.Direct = false
} else {
p = proxy.NewNoProxy(conn.config.ProxyConfig)
p = proxy.NewNoProxy(conn.config.ProxyConfig, remoteWgPort)
peerState.Direct = true
}
conn.proxy = p
err = p.Start(remoteConn)
@@ -311,6 +379,19 @@ func (conn *Conn) startProxy(remoteConn net.Conn) error {
conn.status = StatusConnected
peerState.ConnStatus = conn.status.String()
peerState.ConnStatusUpdate = time.Now()
peerState.LocalIceCandidateType = pair.Local.Type().String()
peerState.RemoteIceCandidateType = pair.Remote.Type().String()
if pair.Local.Type() == ice.CandidateTypeRelay || pair.Remote.Type() == ice.CandidateTypeRelay {
peerState.Relayed = true
}
err = conn.statusRecorder.UpdatePeerState(peerState)
if err != nil {
log.Warnf("unable to save peer's state, got error: %v", err)
}
return nil
}
@@ -343,18 +424,29 @@ func (conn *Conn) cleanup() error {
conn.status = StatusDisconnected
peerState := nbStatus.PeerState{PubKey: conn.config.Key}
peerState.ConnStatus = conn.status.String()
peerState.ConnStatusUpdate = time.Now()
err := conn.statusRecorder.UpdatePeerState(peerState)
if err != nil {
// pretty common error because by that time Engine can already remove the peer and status won't be available.
//todo rethink status updates
log.Debugf("error while updating peer's %s state, err: %v", conn.config.Key, err)
}
log.Debugf("cleaned up connection to peer %s", conn.config.Key)
return nil
}
// SetSignalOffer sets a handler function to be triggered by Conn when a new connection offer has to be signalled to the remote peer
func (conn *Conn) SetSignalOffer(handler func(uFrag string, pwd string) error) {
func (conn *Conn) SetSignalOffer(handler func(offer OfferAnswer) error) {
conn.signalOffer = handler
}
// SetSignalAnswer sets a handler function to be triggered by Conn when a new connection answer has to be signalled to the remote peer
func (conn *Conn) SetSignalAnswer(handler func(uFrag string, pwd string) error) {
func (conn *Conn) SetSignalAnswer(handler func(answer OfferAnswer) error) {
conn.signalAnswer = handler
}
@@ -367,7 +459,8 @@ func (conn *Conn) SetSignalCandidate(handler func(candidate ice.Candidate) error
// and then signals them to the remote peer
func (conn *Conn) onICECandidate(candidate ice.Candidate) {
if candidate != nil {
// log.Debugf("discovered local candidate %s", candidate.String())
// TODO: reported port is incorrect for CandidateTypeHost, makes understanding ICE use via logs confusing as port is ignored
log.Debugf("discovered local candidate %s", candidate.String())
go func() {
err := conn.signalCandidate(candidate)
if err != nil {
@@ -399,8 +492,12 @@ func (conn *Conn) sendAnswer() error {
return err
}
log.Debugf("sending asnwer to %s", conn.config.Key)
err = conn.signalAnswer(localUFrag, localPwd)
log.Debugf("sending answer to %s", conn.config.Key)
err = conn.signalAnswer(OfferAnswer{
IceCredentials: IceCredentials{localUFrag, localPwd},
WgListenPort: conn.config.LocalWgPort,
Version: system.NetbirdVersion(),
})
if err != nil {
return err
}
@@ -417,7 +514,11 @@ func (conn *Conn) sendOffer() error {
if err != nil {
return err
}
err = conn.signalOffer(localUFrag, localPwd)
err = conn.signalOffer(OfferAnswer{
IceCredentials: IceCredentials{localUFrag, localPwd},
WgListenPort: conn.config.LocalWgPort,
Version: system.NetbirdVersion(),
})
if err != nil {
return err
}
@@ -458,11 +559,11 @@ func (conn *Conn) Status() ConnStatus {
// OnRemoteOffer handles an offer from the remote peer and returns true if the message was accepted, false otherwise
// doesn't block, discards the message if connection wasn't ready
func (conn *Conn) OnRemoteOffer(remoteAuth IceCredentials) bool {
func (conn *Conn) OnRemoteOffer(offer OfferAnswer) bool {
log.Debugf("OnRemoteOffer from peer %s on status %s", conn.config.Key, conn.status.String())
select {
case conn.remoteOffersCh <- remoteAuth:
case conn.remoteOffersCh <- offer:
return true
default:
log.Debugf("OnRemoteOffer skipping message from peer %s on status %s because is not ready", conn.config.Key, conn.status.String())
@@ -473,11 +574,11 @@ func (conn *Conn) OnRemoteOffer(remoteAuth IceCredentials) bool {
// OnRemoteAnswer handles an offer from the remote peer and returns true if the message was accepted, false otherwise
// doesn't block, discards the message if connection wasn't ready
func (conn *Conn) OnRemoteAnswer(remoteAuth IceCredentials) bool {
func (conn *Conn) OnRemoteAnswer(answer OfferAnswer) bool {
log.Debugf("OnRemoteAnswer from peer %s on status %s", conn.config.Key, conn.status.String())
select {
case conn.remoteAnswerCh <- remoteAuth:
case conn.remoteAnswerCh <- answer:
return true
default:
// connection might not be ready yet to receive so we ignore the message

View File

@@ -3,6 +3,7 @@ package peer
import (
"github.com/magiconair/properties/assert"
"github.com/netbirdio/netbird/client/internal/proxy"
nbstatus "github.com/netbirdio/netbird/client/status"
"github.com/netbirdio/netbird/iface"
"github.com/pion/ice/v2"
"sync"
@@ -17,6 +18,7 @@ var connConf = ConnConfig{
InterfaceBlackList: nil,
Timeout: time.Second,
ProxyConfig: proxy.Config{},
LocalWgPort: 51820,
}
func TestNewConn_interfaceFilter(t *testing.T) {
@@ -32,7 +34,7 @@ func TestNewConn_interfaceFilter(t *testing.T) {
}
func TestConn_GetKey(t *testing.T) {
conn, err := NewConn(connConf)
conn, err := NewConn(connConf, nil)
if err != nil {
return
}
@@ -44,7 +46,7 @@ func TestConn_GetKey(t *testing.T) {
func TestConn_OnRemoteOffer(t *testing.T) {
conn, err := NewConn(connConf)
conn, err := NewConn(connConf, nbstatus.NewRecorder())
if err != nil {
return
}
@@ -58,9 +60,13 @@ func TestConn_OnRemoteOffer(t *testing.T) {
go func() {
for {
accepted := conn.OnRemoteOffer(IceCredentials{
UFrag: "test",
Pwd: "test",
accepted := conn.OnRemoteOffer(OfferAnswer{
IceCredentials: IceCredentials{
UFrag: "test",
Pwd: "test",
},
WgListenPort: 0,
Version: "",
})
if accepted {
wg.Done()
@@ -74,7 +80,7 @@ func TestConn_OnRemoteOffer(t *testing.T) {
func TestConn_OnRemoteAnswer(t *testing.T) {
conn, err := NewConn(connConf)
conn, err := NewConn(connConf, nbstatus.NewRecorder())
if err != nil {
return
}
@@ -88,9 +94,13 @@ func TestConn_OnRemoteAnswer(t *testing.T) {
go func() {
for {
accepted := conn.OnRemoteAnswer(IceCredentials{
UFrag: "test",
Pwd: "test",
accepted := conn.OnRemoteAnswer(OfferAnswer{
IceCredentials: IceCredentials{
UFrag: "test",
Pwd: "test",
},
WgListenPort: 0,
Version: "",
})
if accepted {
wg.Done()
@@ -103,7 +113,7 @@ func TestConn_OnRemoteAnswer(t *testing.T) {
}
func TestConn_Status(t *testing.T) {
conn, err := NewConn(connConf)
conn, err := NewConn(connConf, nbstatus.NewRecorder())
if err != nil {
return
}
@@ -130,7 +140,7 @@ func TestConn_Status(t *testing.T) {
func TestConn_Close(t *testing.T) {
conn, err := NewConn(connConf)
conn, err := NewConn(connConf, nbstatus.NewRecorder())
if err != nil {
return
}

View File

@@ -7,11 +7,11 @@ type ConnStatus int
func (s ConnStatus) String() string {
switch s {
case StatusConnecting:
return "StatusConnecting"
return "Connecting"
case StatusConnected:
return "StatusConnected"
return "Connected"
case StatusDisconnected:
return "StatusDisconnected"
return "Disconnected"
default:
log.Errorf("unknown status: %d", s)
return "INVALID_PEER_CONNECTION_STATUS"
@@ -19,7 +19,7 @@ func (s ConnStatus) String() string {
}
const (
StatusConnected = iota
StatusConnected ConnStatus = iota
StatusConnecting
StatusDisconnected
)

View File

@@ -12,9 +12,9 @@ func TestConnStatus_String(t *testing.T) {
status ConnStatus
want string
}{
{"StatusConnected", StatusConnected, "StatusConnected"},
{"StatusDisconnected", StatusDisconnected, "StatusDisconnected"},
{"StatusConnecting", StatusConnecting, "StatusConnecting"},
{"StatusConnected", StatusConnected, "Connected"},
{"StatusDisconnected", StatusDisconnected, "Disconnected"},
{"StatusConnecting", StatusConnecting, "Connecting"},
}
for _, table := range tables {

View File

@@ -1,7 +1,6 @@
package proxy
import (
"github.com/netbirdio/netbird/iface"
log "github.com/sirupsen/logrus"
"net"
)
@@ -14,10 +13,14 @@ import (
// In order NoProxy to work, Wireguard port has to be fixed for the time being.
type NoProxy struct {
config Config
// RemoteWgListenPort is a WireGuard port of a remote peer.
// It is used instead of the hardcoded 51820 port.
RemoteWgListenPort int
}
func NewNoProxy(config Config) *NoProxy {
return &NoProxy{config: config}
// NewNoProxy creates a new NoProxy with a provided config and remote peer's WireGuard listen port
func NewNoProxy(config Config, remoteWgPort int) *NoProxy {
return &NoProxy{config: config, RemoteWgListenPort: remoteWgPort}
}
func (p *NoProxy) Close() error {
@@ -36,7 +39,7 @@ func (p *NoProxy) Start(remoteConn net.Conn) error {
if err != nil {
return err
}
addr.Port = iface.DefaultWgPort
addr.Port = p.RemoteWgListenPort
err = p.config.WgInterface.UpdatePeer(p.config.RemoteKey, p.config.AllowedIps, DefaultWgKeepAlive,
addr, p.config.PreSharedKey)

View File

@@ -0,0 +1,282 @@
package routemanager
import (
"context"
"fmt"
"net/netip"
"github.com/netbirdio/netbird/client/internal/peer"
"github.com/netbirdio/netbird/client/status"
"github.com/netbirdio/netbird/iface"
"github.com/netbirdio/netbird/route"
log "github.com/sirupsen/logrus"
)
type routerPeerStatus struct {
connected bool
relayed bool
direct bool
}
type routesUpdate struct {
updateSerial uint64
routes []*route.Route
}
type clientNetwork struct {
ctx context.Context
stop context.CancelFunc
statusRecorder *status.Status
wgInterface *iface.WGIface
routes map[string]*route.Route
routeUpdate chan routesUpdate
peerStateUpdate chan struct{}
routePeersNotifiers map[string]chan struct{}
chosenRoute *route.Route
network netip.Prefix
updateSerial uint64
}
func newClientNetworkWatcher(ctx context.Context, wgInterface *iface.WGIface, statusRecorder *status.Status, network netip.Prefix) *clientNetwork {
ctx, cancel := context.WithCancel(ctx)
client := &clientNetwork{
ctx: ctx,
stop: cancel,
statusRecorder: statusRecorder,
wgInterface: wgInterface,
routes: make(map[string]*route.Route),
routePeersNotifiers: make(map[string]chan struct{}),
routeUpdate: make(chan routesUpdate),
peerStateUpdate: make(chan struct{}),
network: network,
}
return client
}
func (c *clientNetwork) getRouterPeerStatuses() map[string]routerPeerStatus {
routePeerStatuses := make(map[string]routerPeerStatus)
for _, r := range c.routes {
peerStatus, err := c.statusRecorder.GetPeer(r.Peer)
if err != nil {
log.Debugf("couldn't fetch peer state: %v", err)
continue
}
routePeerStatuses[r.ID] = routerPeerStatus{
connected: peerStatus.ConnStatus == peer.StatusConnected.String(),
relayed: peerStatus.Relayed,
direct: peerStatus.Direct,
}
}
return routePeerStatuses
}
func (c *clientNetwork) getBestRouteFromStatuses(routePeerStatuses map[string]routerPeerStatus) string {
var chosen string
chosenScore := 0
currID := ""
if c.chosenRoute != nil {
currID = c.chosenRoute.ID
}
for _, r := range c.routes {
tempScore := 0
peerStatus, found := routePeerStatuses[r.ID]
if !found || !peerStatus.connected {
continue
}
if r.Metric < route.MaxMetric {
metricDiff := route.MaxMetric - r.Metric
tempScore = metricDiff * 10
}
if !peerStatus.relayed {
tempScore++
}
if !peerStatus.direct {
tempScore++
}
if tempScore > chosenScore || (tempScore == chosenScore && currID == r.ID) {
chosen = r.ID
chosenScore = tempScore
}
}
if chosen == "" {
var peers []string
for _, r := range c.routes {
peers = append(peers, r.Peer)
}
log.Warnf("no route was chosen for network %s because no peers from list %s were connected", c.network, peers)
} else if chosen != currID {
log.Infof("new chosen route is %s with peer %s with score %d", chosen, c.routes[chosen].Peer, chosenScore)
}
return chosen
}
func (c *clientNetwork) watchPeerStatusChanges(ctx context.Context, peerKey string, peerStateUpdate chan struct{}, closer chan struct{}) {
for {
select {
case <-ctx.Done():
return
case <-closer:
return
case <-c.statusRecorder.GetPeerStateChangeNotifier(peerKey):
state, err := c.statusRecorder.GetPeer(peerKey)
if err != nil || state.ConnStatus == peer.StatusConnecting.String() {
continue
}
peerStateUpdate <- struct{}{}
log.Debugf("triggered route state update for Peer %s, state: %s", peerKey, state.ConnStatus)
}
}
}
func (c *clientNetwork) startPeersStatusChangeWatcher() {
for _, r := range c.routes {
_, found := c.routePeersNotifiers[r.Peer]
if !found {
c.routePeersNotifiers[r.Peer] = make(chan struct{})
go c.watchPeerStatusChanges(c.ctx, r.Peer, c.peerStateUpdate, c.routePeersNotifiers[r.Peer])
}
}
}
func (c *clientNetwork) removeRouteFromWireguardPeer(peerKey string) error {
state, err := c.statusRecorder.GetPeer(peerKey)
if err != nil || state.ConnStatus != peer.StatusConnected.String() {
return nil
}
err = c.wgInterface.RemoveAllowedIP(peerKey, c.network.String())
if err != nil {
return fmt.Errorf("couldn't remove allowed IP %s removed for peer %s, err: %v",
c.network, c.chosenRoute.Peer, err)
}
return nil
}
func (c *clientNetwork) removeRouteFromPeerAndSystem() error {
if c.chosenRoute != nil {
err := c.removeRouteFromWireguardPeer(c.chosenRoute.Peer)
if err != nil {
return err
}
err = removeFromRouteTableIfNonSystem(c.network, c.wgInterface.GetAddress().IP.String())
if err != nil {
return fmt.Errorf("couldn't remove route %s from system, err: %v",
c.network, err)
}
}
return nil
}
func (c *clientNetwork) recalculateRouteAndUpdatePeerAndSystem() error {
var err error
routerPeerStatuses := c.getRouterPeerStatuses()
chosen := c.getBestRouteFromStatuses(routerPeerStatuses)
if chosen == "" {
err = c.removeRouteFromPeerAndSystem()
if err != nil {
return err
}
c.chosenRoute = nil
return nil
}
if c.chosenRoute != nil && c.chosenRoute.ID == chosen {
if c.chosenRoute.IsEqual(c.routes[chosen]) {
return nil
}
}
if c.chosenRoute != nil {
err = c.removeRouteFromWireguardPeer(c.chosenRoute.Peer)
if err != nil {
return err
}
} else {
err = addToRouteTableIfNoExists(c.network, c.wgInterface.GetAddress().IP.String())
if err != nil {
return fmt.Errorf("route %s couldn't be added for peer %s, err: %v",
c.network.String(), c.wgInterface.GetAddress().IP.String(), err)
}
}
c.chosenRoute = c.routes[chosen]
err = c.wgInterface.AddAllowedIP(c.chosenRoute.Peer, c.network.String())
if err != nil {
log.Errorf("couldn't add allowed IP %s added for peer %s, err: %v",
c.network, c.chosenRoute.Peer, err)
}
return nil
}
func (c *clientNetwork) sendUpdateToClientNetworkWatcher(update routesUpdate) {
go func() {
c.routeUpdate <- update
}()
}
func (c *clientNetwork) handleUpdate(update routesUpdate) {
updateMap := make(map[string]*route.Route)
for _, r := range update.routes {
updateMap[r.ID] = r
}
for id, r := range c.routes {
_, found := updateMap[id]
if !found {
close(c.routePeersNotifiers[r.Peer])
delete(c.routePeersNotifiers, r.Peer)
}
}
c.routes = updateMap
}
// peersStateAndUpdateWatcher is the main point of reacting on client network routing events.
// All the processing related to the client network should be done here. Thread-safe.
func (c *clientNetwork) peersStateAndUpdateWatcher() {
for {
select {
case <-c.ctx.Done():
log.Debugf("stopping watcher for network %s", c.network)
err := c.removeRouteFromPeerAndSystem()
if err != nil {
log.Error(err)
}
return
case <-c.peerStateUpdate:
err := c.recalculateRouteAndUpdatePeerAndSystem()
if err != nil {
log.Error(err)
}
case update := <-c.routeUpdate:
if update.updateSerial < c.updateSerial {
log.Warnf("received a routes update with smaller serial number, ignoring it")
continue
}
log.Debugf("received a new client network route update for %s", c.network)
c.handleUpdate(update)
c.updateSerial = update.updateSerial
err := c.recalculateRouteAndUpdatePeerAndSystem()
if err != nil {
log.Error(err)
}
c.startPeersStatusChangeWatcher()
}
}
}

View File

@@ -0,0 +1,75 @@
package routemanager
var insertRuleTestCases = []struct {
name string
inputPair routerPair
ipVersion string
}{
{
name: "Insert Forwarding IPV4 Rule",
inputPair: routerPair{
ID: "zxa",
source: "100.100.100.1/32",
destination: "100.100.200.0/24",
masquerade: false,
},
ipVersion: ipv4,
},
{
name: "Insert Forwarding And Nat IPV4 Rules",
inputPair: routerPair{
ID: "zxa",
source: "100.100.100.1/32",
destination: "100.100.200.0/24",
masquerade: true,
},
ipVersion: ipv4,
},
{
name: "Insert Forwarding IPV6 Rule",
inputPair: routerPair{
ID: "zxa",
source: "fc00::1/128",
destination: "fc12::/64",
masquerade: false,
},
ipVersion: ipv6,
},
{
name: "Insert Forwarding And Nat IPV6 Rules",
inputPair: routerPair{
ID: "zxa",
source: "fc00::1/128",
destination: "fc12::/64",
masquerade: true,
},
ipVersion: ipv6,
},
}
var removeRuleTestCases = []struct {
name string
inputPair routerPair
ipVersion string
}{
{
name: "Remove Forwarding And Nat IPV4 Rules",
inputPair: routerPair{
ID: "zxa",
source: "100.100.100.1/32",
destination: "100.100.200.0/24",
masquerade: true,
},
ipVersion: ipv4,
},
{
name: "Remove Forwarding And Nat IPV6 Rules",
inputPair: routerPair{
ID: "zxa",
source: "fc00::1/128",
destination: "fc12::/64",
masquerade: true,
},
ipVersion: ipv6,
},
}

View File

@@ -0,0 +1,12 @@
package routemanager
type firewallManager interface {
// RestoreOrCreateContainers restores or creates a firewall container set of rules, tables and default rules
RestoreOrCreateContainers() error
// InsertRoutingRules inserts a routing firewall rule
InsertRoutingRules(pair routerPair) error
// RemoveRoutingRules removes a routing firewall rule
RemoveRoutingRules(pair routerPair) error
// CleanRoutingRules cleans a firewall set of containers
CleanRoutingRules()
}

View File

@@ -0,0 +1,67 @@
package routemanager
import (
"context"
"fmt"
"github.com/coreos/go-iptables/iptables"
log "github.com/sirupsen/logrus"
)
import "github.com/google/nftables"
const (
ipv6Forwarding = "netbird-rt-ipv6-forwarding"
ipv4Forwarding = "netbird-rt-ipv4-forwarding"
ipv6Nat = "netbird-rt-ipv6-nat"
ipv4Nat = "netbird-rt-ipv4-nat"
natFormat = "netbird-nat-%s"
forwardingFormat = "netbird-fwd-%s"
inNatFormat = "netbird-nat-in-%s"
inForwardingFormat = "netbird-fwd-in-%s"
ipv6 = "ipv6"
ipv4 = "ipv4"
)
func genKey(format string, input string) string {
return fmt.Sprintf(format, input)
}
// NewFirewall if supported, returns an iptables manager, otherwise returns a nftables manager
func NewFirewall(parentCTX context.Context) firewallManager {
ctx, cancel := context.WithCancel(parentCTX)
if isIptablesSupported() {
log.Debugf("iptables is supported")
ipv4Client, _ := iptables.NewWithProtocol(iptables.ProtocolIPv4)
ipv6Client, _ := iptables.NewWithProtocol(iptables.ProtocolIPv6)
return &iptablesManager{
ctx: ctx,
stop: cancel,
ipv4Client: ipv4Client,
ipv6Client: ipv6Client,
rules: make(map[string]map[string][]string),
}
}
log.Debugf("iptables is not supported, using nftables")
manager := &nftablesManager{
ctx: ctx,
stop: cancel,
conn: &nftables.Conn{},
chains: make(map[string]map[string]*nftables.Chain),
rules: make(map[string]*nftables.Rule),
}
return manager
}
func getInPair(pair routerPair) routerPair {
return routerPair{
ID: pair.ID,
// invert source/destination
source: pair.destination,
destination: pair.source,
masquerade: pair.masquerade,
}
}

View File

@@ -0,0 +1,26 @@
//go:build !linux
// +build !linux
package routemanager
import "context"
type unimplementedFirewall struct{}
func (unimplementedFirewall) RestoreOrCreateContainers() error {
return nil
}
func (unimplementedFirewall) InsertRoutingRules(pair routerPair) error {
return nil
}
func (unimplementedFirewall) RemoveRoutingRules(pair routerPair) error {
return nil
}
func (unimplementedFirewall) CleanRoutingRules() {
}
// NewFirewall returns an unimplemented Firewall manager
func NewFirewall(parentCtx context.Context) firewallManager {
return unimplementedFirewall{}
}

View File

@@ -0,0 +1,436 @@
package routemanager
import (
"context"
"fmt"
"github.com/coreos/go-iptables/iptables"
log "github.com/sirupsen/logrus"
"net/netip"
"os/exec"
"strings"
"sync"
)
func isIptablesSupported() bool {
_, err4 := exec.LookPath("iptables")
_, err6 := exec.LookPath("ip6tables")
return err4 == nil && err6 == nil
}
// constants needed to manage and create iptable rules
const (
iptablesFilterTable = "filter"
iptablesNatTable = "nat"
iptablesForwardChain = "FORWARD"
iptablesPostRoutingChain = "POSTROUTING"
iptablesRoutingNatChain = "NETBIRD-RT-NAT"
iptablesRoutingForwardingChain = "NETBIRD-RT-FWD"
routingFinalForwardJump = "ACCEPT"
routingFinalNatJump = "MASQUERADE"
)
// some presets for building nftable rules
var (
iptablesDefaultForwardingRule = []string{"-j", iptablesRoutingForwardingChain, "-m", "comment", "--comment"}
iptablesDefaultNetbirdForwardingRule = []string{"-j", "RETURN"}
iptablesDefaultNatRule = []string{"-j", iptablesRoutingNatChain, "-m", "comment", "--comment"}
iptablesDefaultNetbirdNatRule = []string{"-j", "RETURN"}
)
type iptablesManager struct {
ctx context.Context
stop context.CancelFunc
ipv4Client *iptables.IPTables
ipv6Client *iptables.IPTables
rules map[string]map[string][]string
mux sync.Mutex
}
// CleanRoutingRules cleans existing iptables resources that we created by the agent
func (i *iptablesManager) CleanRoutingRules() {
i.mux.Lock()
defer i.mux.Unlock()
err := i.cleanJumpRules()
if err != nil {
log.Error(err)
}
log.Debug("flushing tables")
errMSGFormat := "iptables: failed cleaning %s chain %s,error: %v"
err = i.ipv4Client.ClearAndDeleteChain(iptablesFilterTable, iptablesRoutingForwardingChain)
if err != nil {
log.Errorf(errMSGFormat, ipv4, iptablesRoutingForwardingChain, err)
}
err = i.ipv4Client.ClearAndDeleteChain(iptablesNatTable, iptablesRoutingNatChain)
if err != nil {
log.Errorf(errMSGFormat, ipv4, iptablesRoutingNatChain, err)
}
err = i.ipv6Client.ClearAndDeleteChain(iptablesFilterTable, iptablesRoutingForwardingChain)
if err != nil {
log.Errorf(errMSGFormat, ipv6, iptablesRoutingForwardingChain, err)
}
err = i.ipv6Client.ClearAndDeleteChain(iptablesNatTable, iptablesRoutingNatChain)
if err != nil {
log.Errorf(errMSGFormat, ipv6, iptablesRoutingNatChain, err)
}
log.Info("done cleaning up iptables rules")
}
// RestoreOrCreateContainers restores existing iptables containers (chains and rules)
// if they don't exist, we create them
func (i *iptablesManager) RestoreOrCreateContainers() error {
i.mux.Lock()
defer i.mux.Unlock()
if i.rules[ipv4][ipv4Forwarding] != nil && i.rules[ipv6][ipv6Forwarding] != nil {
return nil
}
errMSGFormat := "iptables: failed creating %s chain %s,error: %v"
err := createChain(i.ipv4Client, iptablesFilterTable, iptablesRoutingForwardingChain)
if err != nil {
return fmt.Errorf(errMSGFormat, ipv4, iptablesRoutingForwardingChain, err)
}
err = createChain(i.ipv4Client, iptablesNatTable, iptablesRoutingNatChain)
if err != nil {
return fmt.Errorf(errMSGFormat, ipv4, iptablesRoutingNatChain, err)
}
err = createChain(i.ipv6Client, iptablesFilterTable, iptablesRoutingForwardingChain)
if err != nil {
return fmt.Errorf(errMSGFormat, ipv6, iptablesRoutingForwardingChain, err)
}
err = createChain(i.ipv6Client, iptablesNatTable, iptablesRoutingNatChain)
if err != nil {
return fmt.Errorf(errMSGFormat, ipv6, iptablesRoutingNatChain, err)
}
err = i.restoreRules(i.ipv4Client)
if err != nil {
return fmt.Errorf("iptables: error while restoring ipv4 rules: %v", err)
}
err = i.restoreRules(i.ipv6Client)
if err != nil {
return fmt.Errorf("iptables: error while restoring ipv6 rules: %v", err)
}
err = i.addJumpRules()
if err != nil {
return fmt.Errorf("iptables: error while creating jump rules: %v", err)
}
return nil
}
// addJumpRules create jump rules to send packets to NetBird chains
func (i *iptablesManager) addJumpRules() error {
err := i.cleanJumpRules()
if err != nil {
return err
}
rule := append(iptablesDefaultForwardingRule, ipv4Forwarding)
err = i.ipv4Client.Insert(iptablesFilterTable, iptablesForwardChain, 1, rule...)
if err != nil {
return err
}
i.rules[ipv4][ipv4Forwarding] = rule
rule = append(iptablesDefaultNatRule, ipv4Nat)
err = i.ipv4Client.Insert(iptablesNatTable, iptablesPostRoutingChain, 1, rule...)
if err != nil {
return err
}
i.rules[ipv4][ipv4Nat] = rule
rule = append(iptablesDefaultForwardingRule, ipv6Forwarding)
err = i.ipv6Client.Insert(iptablesFilterTable, iptablesForwardChain, 1, rule...)
if err != nil {
return err
}
i.rules[ipv6][ipv6Forwarding] = rule
rule = append(iptablesDefaultNatRule, ipv6Nat)
err = i.ipv6Client.Insert(iptablesNatTable, iptablesPostRoutingChain, 1, rule...)
if err != nil {
return err
}
i.rules[ipv6][ipv6Nat] = rule
return nil
}
// cleanJumpRules cleans jump rules that was sending packets to NetBird chains
func (i *iptablesManager) cleanJumpRules() error {
var err error
errMSGFormat := "iptables: failed cleaning rule from %s chain %s,err: %v"
rule, found := i.rules[ipv4][ipv4Forwarding]
if found {
log.Debugf("iptables: removing %s rule: %s ", ipv4, ipv4Forwarding)
err = i.ipv4Client.DeleteIfExists(iptablesFilterTable, iptablesForwardChain, rule...)
if err != nil {
return fmt.Errorf(errMSGFormat, ipv4, iptablesForwardChain, err)
}
}
rule, found = i.rules[ipv4][ipv4Nat]
if found {
log.Debugf("iptables: removing %s rule: %s ", ipv4, ipv4Nat)
err = i.ipv4Client.DeleteIfExists(iptablesNatTable, iptablesPostRoutingChain, rule...)
if err != nil {
return fmt.Errorf(errMSGFormat, ipv4, iptablesPostRoutingChain, err)
}
}
rule, found = i.rules[ipv6][ipv6Forwarding]
if found {
log.Debugf("iptables: removing %s rule: %s ", ipv6, ipv6Forwarding)
err = i.ipv6Client.DeleteIfExists(iptablesFilterTable, iptablesForwardChain, rule...)
if err != nil {
return fmt.Errorf(errMSGFormat, ipv6, iptablesForwardChain, err)
}
}
rule, found = i.rules[ipv6][ipv6Nat]
if found {
log.Debugf("iptables: removing %s rule: %s ", ipv6, ipv6Nat)
err = i.ipv6Client.DeleteIfExists(iptablesNatTable, iptablesPostRoutingChain, rule...)
if err != nil {
return fmt.Errorf(errMSGFormat, ipv6, iptablesPostRoutingChain, err)
}
}
return nil
}
func iptablesProtoToString(proto iptables.Protocol) string {
if proto == iptables.ProtocolIPv6 {
return ipv6
}
return ipv4
}
// restoreRules restores existing NetBird rules
func (i *iptablesManager) restoreRules(iptablesClient *iptables.IPTables) error {
ipVersion := iptablesProtoToString(iptablesClient.Proto())
if i.rules[ipVersion] == nil {
i.rules[ipVersion] = make(map[string][]string)
}
table := iptablesFilterTable
for _, chain := range []string{iptablesForwardChain, iptablesRoutingForwardingChain} {
rules, err := iptablesClient.List(table, chain)
if err != nil {
return err
}
for _, ruleString := range rules {
rule := strings.Fields(ruleString)
id := getRuleRouteID(rule)
if id != "" {
i.rules[ipVersion][id] = rule[2:]
}
}
}
table = iptablesNatTable
for _, chain := range []string{iptablesPostRoutingChain, iptablesRoutingNatChain} {
rules, err := iptablesClient.List(table, chain)
if err != nil {
return err
}
for _, ruleString := range rules {
rule := strings.Fields(ruleString)
id := getRuleRouteID(rule)
if id != "" {
i.rules[ipVersion][id] = rule[2:]
}
}
}
return nil
}
// createChain create NetBird chains
func createChain(iptables *iptables.IPTables, table, newChain string) error {
chains, err := iptables.ListChains(table)
if err != nil {
return fmt.Errorf("couldn't get %s %s table chains, error: %v", iptablesProtoToString(iptables.Proto()), table, err)
}
shouldCreateChain := true
for _, chain := range chains {
if chain == newChain {
shouldCreateChain = false
}
}
if shouldCreateChain {
err = iptables.NewChain(table, newChain)
if err != nil {
return fmt.Errorf("couldn't create %s chain %s in %s table, error: %v", iptablesProtoToString(iptables.Proto()), newChain, table, err)
}
if table == iptablesNatTable {
err = iptables.Append(table, newChain, iptablesDefaultNetbirdNatRule...)
} else {
err = iptables.Append(table, newChain, iptablesDefaultNetbirdForwardingRule...)
}
if err != nil {
return fmt.Errorf("couldn't create %s chain %s default rule, error: %v", iptablesProtoToString(iptables.Proto()), newChain, err)
}
}
return nil
}
// genRuleSpec generates rule specification with comment identifier
func genRuleSpec(jump, id, source, destination string) []string {
return []string{"-s", source, "-d", destination, "-j", jump, "-m", "comment", "--comment", id}
}
// getRuleRouteID returns the rule ID if matches our prefix
func getRuleRouteID(rule []string) string {
for i, flag := range rule {
if flag == "--comment" {
id := rule[i+1]
if strings.HasPrefix(id, "netbird-") {
return id
}
}
}
return ""
}
// InsertRoutingRules inserts an iptables rule pair to the forwarding chain and if enabled, to the nat chain
func (i *iptablesManager) InsertRoutingRules(pair routerPair) error {
i.mux.Lock()
defer i.mux.Unlock()
err := i.insertRoutingRule(forwardingFormat, iptablesFilterTable, iptablesRoutingForwardingChain, routingFinalForwardJump, pair)
if err != nil {
return err
}
err = i.insertRoutingRule(inForwardingFormat, iptablesFilterTable, iptablesRoutingForwardingChain, routingFinalForwardJump, getInPair(pair))
if err != nil {
return err
}
if !pair.masquerade {
return nil
}
err = i.insertRoutingRule(natFormat, iptablesNatTable, iptablesRoutingNatChain, routingFinalNatJump, pair)
if err != nil {
return err
}
err = i.insertRoutingRule(inNatFormat, iptablesNatTable, iptablesRoutingNatChain, routingFinalNatJump, getInPair(pair))
if err != nil {
return err
}
return nil
}
// insertRoutingRule inserts an iptable rule
func (i *iptablesManager) insertRoutingRule(keyFormat, table, chain, jump string, pair routerPair) error {
var err error
prefix := netip.MustParsePrefix(pair.source)
ipVersion := ipv4
iptablesClient := i.ipv4Client
if prefix.Addr().Unmap().Is6() {
iptablesClient = i.ipv6Client
ipVersion = ipv6
}
ruleKey := genKey(keyFormat, pair.ID)
rule := genRuleSpec(jump, ruleKey, pair.source, pair.destination)
existingRule, found := i.rules[ipVersion][ruleKey]
if found {
err = iptablesClient.DeleteIfExists(table, chain, existingRule...)
if err != nil {
return fmt.Errorf("iptables: error while removing existing %s rule for %s: %v", getIptablesRuleType(table), pair.destination, err)
}
delete(i.rules[ipVersion], ruleKey)
}
err = iptablesClient.Insert(table, chain, 1, rule...)
if err != nil {
return fmt.Errorf("iptables: error while adding new %s rule for %s: %v", getIptablesRuleType(table), pair.destination, err)
}
i.rules[ipVersion][ruleKey] = rule
return nil
}
// RemoveRoutingRules removes an iptables rule pair from forwarding and nat chains
func (i *iptablesManager) RemoveRoutingRules(pair routerPair) error {
i.mux.Lock()
defer i.mux.Unlock()
err := i.removeRoutingRule(forwardingFormat, iptablesFilterTable, iptablesRoutingForwardingChain, pair)
if err != nil {
return err
}
err = i.removeRoutingRule(inForwardingFormat, iptablesFilterTable, iptablesRoutingForwardingChain, getInPair(pair))
if err != nil {
return err
}
if !pair.masquerade {
return nil
}
err = i.removeRoutingRule(natFormat, iptablesNatTable, iptablesRoutingNatChain, pair)
if err != nil {
return err
}
err = i.removeRoutingRule(inNatFormat, iptablesNatTable, iptablesRoutingNatChain, getInPair(pair))
if err != nil {
return err
}
return nil
}
// removeRoutingRule removes an iptables rule
func (i *iptablesManager) removeRoutingRule(keyFormat, table, chain string, pair routerPair) error {
var err error
prefix := netip.MustParsePrefix(pair.source)
ipVersion := ipv4
iptablesClient := i.ipv4Client
if prefix.Addr().Unmap().Is6() {
iptablesClient = i.ipv6Client
ipVersion = ipv6
}
ruleKey := genKey(keyFormat, pair.ID)
existingRule, found := i.rules[ipVersion][ruleKey]
if found {
err = iptablesClient.DeleteIfExists(table, chain, existingRule...)
if err != nil {
return fmt.Errorf("iptables: error while removing existing %s rule for %s: %v", getIptablesRuleType(table), pair.destination, err)
}
}
delete(i.rules[ipVersion], ruleKey)
return nil
}
func getIptablesRuleType(table string) string {
ruleType := "forwarding"
if table == iptablesNatTable {
ruleType = "nat"
}
return ruleType
}

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package routemanager
import (
"context"
"github.com/coreos/go-iptables/iptables"
"github.com/stretchr/testify/require"
"testing"
)
func TestIptablesManager_RestoreOrCreateContainers(t *testing.T) {
if !isIptablesSupported() {
t.SkipNow()
}
ctx, cancel := context.WithCancel(context.TODO())
ipv4Client, _ := iptables.NewWithProtocol(iptables.ProtocolIPv4)
ipv6Client, _ := iptables.NewWithProtocol(iptables.ProtocolIPv6)
manager := &iptablesManager{
ctx: ctx,
stop: cancel,
ipv4Client: ipv4Client,
ipv6Client: ipv6Client,
rules: make(map[string]map[string][]string),
}
defer manager.CleanRoutingRules()
err := manager.RestoreOrCreateContainers()
require.NoError(t, err, "shouldn't return error")
require.Len(t, manager.rules, 2, "should have created maps for ipv4 and ipv6")
require.Len(t, manager.rules[ipv4], 2, "should have created minimal rules for ipv4")
exists, err := ipv4Client.Exists(iptablesFilterTable, iptablesForwardChain, manager.rules[ipv4][ipv4Forwarding]...)
require.NoError(t, err, "should be able to query the iptables %s %s table and %s chain", ipv4, iptablesFilterTable, iptablesForwardChain)
require.True(t, exists, "forwarding rule should exist")
exists, err = ipv4Client.Exists(iptablesNatTable, iptablesPostRoutingChain, manager.rules[ipv4][ipv4Nat]...)
require.NoError(t, err, "should be able to query the iptables %s %s table and %s chain", ipv4, iptablesNatTable, iptablesPostRoutingChain)
require.True(t, exists, "postrouting rule should exist")
require.Len(t, manager.rules[ipv6], 2, "should have created minimal rules for ipv6")
exists, err = ipv6Client.Exists(iptablesFilterTable, iptablesForwardChain, manager.rules[ipv6][ipv6Forwarding]...)
require.NoError(t, err, "should be able to query the iptables %s %s table and %s chain", ipv6, iptablesFilterTable, iptablesForwardChain)
require.True(t, exists, "forwarding rule should exist")
exists, err = ipv6Client.Exists(iptablesNatTable, iptablesPostRoutingChain, manager.rules[ipv6][ipv6Nat]...)
require.NoError(t, err, "should be able to query the iptables %s %s table and %s chain", ipv6, iptablesNatTable, iptablesPostRoutingChain)
require.True(t, exists, "postrouting rule should exist")
pair := routerPair{
ID: "abc",
source: "100.100.100.1/32",
destination: "100.100.100.0/24",
masquerade: true,
}
forward4RuleKey := genKey(forwardingFormat, pair.ID)
forward4Rule := genRuleSpec(routingFinalForwardJump, forward4RuleKey, pair.source, pair.destination)
err = ipv4Client.Insert(iptablesFilterTable, iptablesRoutingForwardingChain, 1, forward4Rule...)
require.NoError(t, err, "inserting rule should not return error")
nat4RuleKey := genKey(natFormat, pair.ID)
nat4Rule := genRuleSpec(routingFinalNatJump, nat4RuleKey, pair.source, pair.destination)
err = ipv4Client.Insert(iptablesNatTable, iptablesRoutingNatChain, 1, nat4Rule...)
require.NoError(t, err, "inserting rule should not return error")
pair = routerPair{
ID: "abc",
source: "fc00::1/128",
destination: "fc11::/64",
masquerade: true,
}
forward6RuleKey := genKey(forwardingFormat, pair.ID)
forward6Rule := genRuleSpec(routingFinalForwardJump, forward6RuleKey, pair.source, pair.destination)
err = ipv6Client.Insert(iptablesFilterTable, iptablesRoutingForwardingChain, 1, forward6Rule...)
require.NoError(t, err, "inserting rule should not return error")
nat6RuleKey := genKey(natFormat, pair.ID)
nat6Rule := genRuleSpec(routingFinalNatJump, nat6RuleKey, pair.source, pair.destination)
err = ipv6Client.Insert(iptablesNatTable, iptablesRoutingNatChain, 1, nat6Rule...)
require.NoError(t, err, "inserting rule should not return error")
delete(manager.rules, ipv4)
delete(manager.rules, ipv6)
err = manager.RestoreOrCreateContainers()
require.NoError(t, err, "shouldn't return error")
require.Len(t, manager.rules[ipv4], 4, "should have restored all rules for ipv4")
foundRule, found := manager.rules[ipv4][forward4RuleKey]
require.True(t, found, "forwarding rule should exist in the map")
require.Equal(t, forward4Rule[:4], foundRule[:4], "stored forwarding rule should match")
foundRule, found = manager.rules[ipv4][nat4RuleKey]
require.True(t, found, "nat rule should exist in the map")
require.Equal(t, nat4Rule[:4], foundRule[:4], "stored nat rule should match")
require.Len(t, manager.rules[ipv6], 4, "should have restored all rules for ipv6")
foundRule, found = manager.rules[ipv6][forward6RuleKey]
require.True(t, found, "forwarding rule should exist in the map")
require.Equal(t, forward6Rule[:4], foundRule[:4], "stored forward rule should match")
foundRule, found = manager.rules[ipv6][nat6RuleKey]
require.True(t, found, "nat rule should exist in the map")
require.Equal(t, nat6Rule[:4], foundRule[:4], "stored nat rule should match")
}
func TestIptablesManager_InsertRoutingRules(t *testing.T) {
if !isIptablesSupported() {
t.SkipNow()
}
for _, testCase := range insertRuleTestCases {
t.Run(testCase.name, func(t *testing.T) {
ctx, cancel := context.WithCancel(context.TODO())
ipv4Client, _ := iptables.NewWithProtocol(iptables.ProtocolIPv4)
ipv6Client, _ := iptables.NewWithProtocol(iptables.ProtocolIPv6)
iptablesClient := ipv4Client
if testCase.ipVersion == ipv6 {
iptablesClient = ipv6Client
}
manager := &iptablesManager{
ctx: ctx,
stop: cancel,
ipv4Client: ipv4Client,
ipv6Client: ipv6Client,
rules: make(map[string]map[string][]string),
}
defer manager.CleanRoutingRules()
err := manager.RestoreOrCreateContainers()
require.NoError(t, err, "shouldn't return error")
err = manager.InsertRoutingRules(testCase.inputPair)
require.NoError(t, err, "forwarding pair should be inserted")
forwardRuleKey := genKey(forwardingFormat, testCase.inputPair.ID)
forwardRule := genRuleSpec(routingFinalForwardJump, forwardRuleKey, testCase.inputPair.source, testCase.inputPair.destination)
exists, err := iptablesClient.Exists(iptablesFilterTable, iptablesRoutingForwardingChain, forwardRule...)
require.NoError(t, err, "should be able to query the iptables %s %s table and %s chain", testCase.ipVersion, iptablesFilterTable, iptablesRoutingForwardingChain)
require.True(t, exists, "forwarding rule should exist")
foundRule, found := manager.rules[testCase.ipVersion][forwardRuleKey]
require.True(t, found, "forwarding rule should exist in the manager map")
require.Equal(t, forwardRule[:4], foundRule[:4], "stored forwarding rule should match")
inForwardRuleKey := genKey(inForwardingFormat, testCase.inputPair.ID)
inForwardRule := genRuleSpec(routingFinalForwardJump, inForwardRuleKey, getInPair(testCase.inputPair).source, getInPair(testCase.inputPair).destination)
exists, err = iptablesClient.Exists(iptablesFilterTable, iptablesRoutingForwardingChain, inForwardRule...)
require.NoError(t, err, "should be able to query the iptables %s %s table and %s chain", testCase.ipVersion, iptablesFilterTable, iptablesRoutingForwardingChain)
require.True(t, exists, "income forwarding rule should exist")
foundRule, found = manager.rules[testCase.ipVersion][inForwardRuleKey]
require.True(t, found, "income forwarding rule should exist in the manager map")
require.Equal(t, inForwardRule[:4], foundRule[:4], "stored income forwarding rule should match")
natRuleKey := genKey(natFormat, testCase.inputPair.ID)
natRule := genRuleSpec(routingFinalNatJump, natRuleKey, testCase.inputPair.source, testCase.inputPair.destination)
exists, err = iptablesClient.Exists(iptablesNatTable, iptablesRoutingNatChain, natRule...)
require.NoError(t, err, "should be able to query the iptables %s %s table and %s chain", testCase.ipVersion, iptablesNatTable, iptablesRoutingNatChain)
if testCase.inputPair.masquerade {
require.True(t, exists, "nat rule should be created")
foundNatRule, foundNat := manager.rules[testCase.ipVersion][natRuleKey]
require.True(t, foundNat, "nat rule should exist in the map")
require.Equal(t, natRule[:4], foundNatRule[:4], "stored nat rule should match")
} else {
require.False(t, exists, "nat rule should not be created")
_, foundNat := manager.rules[testCase.ipVersion][natRuleKey]
require.False(t, foundNat, "nat rule should not exist in the map")
}
inNatRuleKey := genKey(inNatFormat, testCase.inputPair.ID)
inNatRule := genRuleSpec(routingFinalNatJump, inNatRuleKey, getInPair(testCase.inputPair).source, getInPair(testCase.inputPair).destination)
exists, err = iptablesClient.Exists(iptablesNatTable, iptablesRoutingNatChain, inNatRule...)
require.NoError(t, err, "should be able to query the iptables %s %s table and %s chain", testCase.ipVersion, iptablesNatTable, iptablesRoutingNatChain)
if testCase.inputPair.masquerade {
require.True(t, exists, "income nat rule should be created")
foundNatRule, foundNat := manager.rules[testCase.ipVersion][inNatRuleKey]
require.True(t, foundNat, "income nat rule should exist in the map")
require.Equal(t, inNatRule[:4], foundNatRule[:4], "stored income nat rule should match")
} else {
require.False(t, exists, "nat rule should not be created")
_, foundNat := manager.rules[testCase.ipVersion][inNatRuleKey]
require.False(t, foundNat, "income nat rule should not exist in the map")
}
})
}
}
func TestIptablesManager_RemoveRoutingRules(t *testing.T) {
if !isIptablesSupported() {
t.SkipNow()
}
for _, testCase := range removeRuleTestCases {
t.Run(testCase.name, func(t *testing.T) {
ctx, cancel := context.WithCancel(context.TODO())
ipv4Client, _ := iptables.NewWithProtocol(iptables.ProtocolIPv4)
ipv6Client, _ := iptables.NewWithProtocol(iptables.ProtocolIPv6)
iptablesClient := ipv4Client
if testCase.ipVersion == ipv6 {
iptablesClient = ipv6Client
}
manager := &iptablesManager{
ctx: ctx,
stop: cancel,
ipv4Client: ipv4Client,
ipv6Client: ipv6Client,
rules: make(map[string]map[string][]string),
}
defer manager.CleanRoutingRules()
err := manager.RestoreOrCreateContainers()
require.NoError(t, err, "shouldn't return error")
forwardRuleKey := genKey(forwardingFormat, testCase.inputPair.ID)
forwardRule := genRuleSpec(routingFinalForwardJump, forwardRuleKey, testCase.inputPair.source, testCase.inputPair.destination)
err = iptablesClient.Insert(iptablesFilterTable, iptablesRoutingForwardingChain, 1, forwardRule...)
require.NoError(t, err, "inserting rule should not return error")
inForwardRuleKey := genKey(inForwardingFormat, testCase.inputPair.ID)
inForwardRule := genRuleSpec(routingFinalForwardJump, inForwardRuleKey, getInPair(testCase.inputPair).source, getInPair(testCase.inputPair).destination)
err = iptablesClient.Insert(iptablesFilterTable, iptablesRoutingForwardingChain, 1, inForwardRule...)
require.NoError(t, err, "inserting rule should not return error")
natRuleKey := genKey(natFormat, testCase.inputPair.ID)
natRule := genRuleSpec(routingFinalNatJump, natRuleKey, testCase.inputPair.source, testCase.inputPair.destination)
err = iptablesClient.Insert(iptablesNatTable, iptablesRoutingNatChain, 1, natRule...)
require.NoError(t, err, "inserting rule should not return error")
inNatRuleKey := genKey(inNatFormat, testCase.inputPair.ID)
inNatRule := genRuleSpec(routingFinalNatJump, inNatRuleKey, getInPair(testCase.inputPair).source, getInPair(testCase.inputPair).destination)
err = iptablesClient.Insert(iptablesNatTable, iptablesRoutingNatChain, 1, inNatRule...)
require.NoError(t, err, "inserting rule should not return error")
delete(manager.rules, ipv4)
delete(manager.rules, ipv6)
err = manager.RestoreOrCreateContainers()
require.NoError(t, err, "shouldn't return error")
err = manager.RemoveRoutingRules(testCase.inputPair)
require.NoError(t, err, "shouldn't return error")
exists, err := iptablesClient.Exists(iptablesFilterTable, iptablesRoutingForwardingChain, forwardRule...)
require.NoError(t, err, "should be able to query the iptables %s %s table and %s chain", testCase.ipVersion, iptablesFilterTable, iptablesRoutingForwardingChain)
require.False(t, exists, "forwarding rule should not exist")
_, found := manager.rules[testCase.ipVersion][forwardRuleKey]
require.False(t, found, "forwarding rule should exist in the manager map")
exists, err = iptablesClient.Exists(iptablesFilterTable, iptablesRoutingForwardingChain, inForwardRule...)
require.NoError(t, err, "should be able to query the iptables %s %s table and %s chain", testCase.ipVersion, iptablesFilterTable, iptablesRoutingForwardingChain)
require.False(t, exists, "income forwarding rule should not exist")
_, found = manager.rules[testCase.ipVersion][inForwardRuleKey]
require.False(t, found, "income forwarding rule should exist in the manager map")
exists, err = iptablesClient.Exists(iptablesNatTable, iptablesRoutingNatChain, natRule...)
require.NoError(t, err, "should be able to query the iptables %s %s table and %s chain", testCase.ipVersion, iptablesNatTable, iptablesRoutingNatChain)
require.False(t, exists, "nat rule should not exist")
_, found = manager.rules[testCase.ipVersion][natRuleKey]
require.False(t, found, "nat rule should exist in the manager map")
exists, err = iptablesClient.Exists(iptablesNatTable, iptablesRoutingNatChain, inNatRule...)
require.NoError(t, err, "should be able to query the iptables %s %s table and %s chain", testCase.ipVersion, iptablesNatTable, iptablesRoutingNatChain)
require.False(t, exists, "income nat rule should not exist")
_, found = manager.rules[testCase.ipVersion][inNatRuleKey]
require.False(t, found, "income nat rule should exist in the manager map")
})
}
}

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package routemanager
import (
"context"
"fmt"
"runtime"
"sync"
"github.com/netbirdio/netbird/client/status"
"github.com/netbirdio/netbird/client/system"
"github.com/netbirdio/netbird/iface"
"github.com/netbirdio/netbird/route"
log "github.com/sirupsen/logrus"
)
// Manager is a route manager interface
type Manager interface {
UpdateRoutes(updateSerial uint64, newRoutes []*route.Route) error
Stop()
}
// DefaultManager is the default instance of a route manager
type DefaultManager struct {
ctx context.Context
stop context.CancelFunc
mux sync.Mutex
clientNetworks map[string]*clientNetwork
serverRoutes map[string]*route.Route
serverRouter *serverRouter
statusRecorder *status.Status
wgInterface *iface.WGIface
pubKey string
}
// NewManager returns a new route manager
func NewManager(ctx context.Context, pubKey string, wgInterface *iface.WGIface, statusRecorder *status.Status) *DefaultManager {
mCTX, cancel := context.WithCancel(ctx)
return &DefaultManager{
ctx: mCTX,
stop: cancel,
clientNetworks: make(map[string]*clientNetwork),
serverRoutes: make(map[string]*route.Route),
serverRouter: &serverRouter{
routes: make(map[string]*route.Route),
netForwardHistoryEnabled: isNetForwardHistoryEnabled(),
firewall: NewFirewall(ctx),
},
statusRecorder: statusRecorder,
wgInterface: wgInterface,
pubKey: pubKey,
}
}
// Stop stops the manager watchers and clean firewall rules
func (m *DefaultManager) Stop() {
m.stop()
m.serverRouter.firewall.CleanRoutingRules()
}
func (m *DefaultManager) updateClientNetworks(updateSerial uint64, networks map[string][]*route.Route) {
// removing routes that do not exist as per the update from the Management service.
for id, client := range m.clientNetworks {
_, found := networks[id]
if !found {
log.Debugf("stopping client network watcher, %s", id)
client.stop()
delete(m.clientNetworks, id)
}
}
for id, routes := range networks {
clientNetworkWatcher, found := m.clientNetworks[id]
if !found {
clientNetworkWatcher = newClientNetworkWatcher(m.ctx, m.wgInterface, m.statusRecorder, routes[0].Network)
m.clientNetworks[id] = clientNetworkWatcher
go clientNetworkWatcher.peersStateAndUpdateWatcher()
}
update := routesUpdate{
updateSerial: updateSerial,
routes: routes,
}
clientNetworkWatcher.sendUpdateToClientNetworkWatcher(update)
}
}
func (m *DefaultManager) updateServerRoutes(routesMap map[string]*route.Route) error {
serverRoutesToRemove := make([]string, 0)
if len(routesMap) > 0 {
err := m.serverRouter.firewall.RestoreOrCreateContainers()
if err != nil {
return fmt.Errorf("couldn't initialize firewall containers, got err: %v", err)
}
}
for routeID := range m.serverRoutes {
update, found := routesMap[routeID]
if !found || !update.IsEqual(m.serverRoutes[routeID]) {
serverRoutesToRemove = append(serverRoutesToRemove, routeID)
continue
}
}
for _, routeID := range serverRoutesToRemove {
oldRoute := m.serverRoutes[routeID]
err := m.removeFromServerNetwork(oldRoute)
if err != nil {
log.Errorf("unable to remove route id: %s, network %s, from server, got: %v",
oldRoute.ID, oldRoute.Network, err)
}
delete(m.serverRoutes, routeID)
}
for id, newRoute := range routesMap {
_, found := m.serverRoutes[id]
if found {
continue
}
err := m.addToServerNetwork(newRoute)
if err != nil {
log.Errorf("unable to add route %s from server, got: %v", newRoute.ID, err)
continue
}
m.serverRoutes[id] = newRoute
}
if len(m.serverRoutes) > 0 {
err := enableIPForwarding()
if err != nil {
return err
}
}
return nil
}
// UpdateRoutes compares received routes with existing routes and remove, update or add them to the client and server maps
func (m *DefaultManager) UpdateRoutes(updateSerial uint64, newRoutes []*route.Route) error {
select {
case <-m.ctx.Done():
log.Infof("not updating routes as context is closed")
return m.ctx.Err()
default:
m.mux.Lock()
defer m.mux.Unlock()
newClientRoutesIDMap := make(map[string][]*route.Route)
newServerRoutesMap := make(map[string]*route.Route)
ownNetworkIDs := make(map[string]bool)
for _, newRoute := range newRoutes {
networkID := route.GetHAUniqueID(newRoute)
if newRoute.Peer == m.pubKey {
ownNetworkIDs[networkID] = true
// only linux is supported for now
if runtime.GOOS != "linux" {
log.Warnf("received a route to manage, but agent doesn't support router mode on %s OS", runtime.GOOS)
continue
}
newServerRoutesMap[newRoute.ID] = newRoute
}
}
for _, newRoute := range newRoutes {
networkID := route.GetHAUniqueID(newRoute)
if !ownNetworkIDs[networkID] {
// if prefix is too small, lets assume is a possible default route which is not yet supported
// we skip this route management
if newRoute.Network.Bits() < 7 {
log.Errorf("this agent version: %s, doesn't support default routes, received %s, skiping this route",
system.NetbirdVersion(), newRoute.Network)
continue
}
newClientRoutesIDMap[networkID] = append(newClientRoutesIDMap[networkID], newRoute)
}
}
m.updateClientNetworks(updateSerial, newClientRoutesIDMap)
err := m.updateServerRoutes(newServerRoutesMap)
if err != nil {
return err
}
return nil
}
}

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package routemanager
import (
"context"
"fmt"
"net/netip"
"runtime"
"testing"
"github.com/netbirdio/netbird/client/status"
"github.com/netbirdio/netbird/iface"
"github.com/netbirdio/netbird/route"
"github.com/stretchr/testify/require"
)
// send 5 routes, one for server and 4 for clients, one normal and 2 HA and one small
// if linux host, should have one for server in map
// we should have 2 client manager
// 2 ranges in our routing table
const localPeerKey = "local"
const remotePeerKey1 = "remote1"
const remotePeerKey2 = "remote1"
func TestManagerUpdateRoutes(t *testing.T) {
testCases := []struct {
name string
inputInitRoutes []*route.Route
inputRoutes []*route.Route
inputSerial uint64
shouldCheckServerRoutes bool
serverRoutesExpected int
clientNetworkWatchersExpected int
}{
{
name: "Should create 2 client networks",
inputInitRoutes: []*route.Route{},
inputRoutes: []*route.Route{
{
ID: "a",
NetID: "routeA",
Peer: remotePeerKey1,
Network: netip.MustParsePrefix("100.64.251.250/30"),
NetworkType: route.IPv4Network,
Metric: 9999,
Masquerade: false,
Enabled: true,
},
{
ID: "b",
NetID: "routeB",
Peer: remotePeerKey1,
Network: netip.MustParsePrefix("8.8.8.8/32"),
NetworkType: route.IPv4Network,
Metric: 9999,
Masquerade: false,
Enabled: true,
},
},
inputSerial: 1,
clientNetworkWatchersExpected: 2,
},
{
name: "Should Create 2 Server Routes",
inputRoutes: []*route.Route{
{
ID: "a",
NetID: "routeA",
Peer: localPeerKey,
Network: netip.MustParsePrefix("100.64.252.250/30"),
NetworkType: route.IPv4Network,
Metric: 9999,
Masquerade: false,
Enabled: true,
},
{
ID: "b",
NetID: "routeB",
Peer: localPeerKey,
Network: netip.MustParsePrefix("8.8.8.9/32"),
NetworkType: route.IPv4Network,
Metric: 9999,
Masquerade: false,
Enabled: true,
},
},
inputSerial: 1,
shouldCheckServerRoutes: runtime.GOOS == "linux",
serverRoutesExpected: 2,
clientNetworkWatchersExpected: 0,
},
{
name: "Should Create 1 Route For Client And Server",
inputRoutes: []*route.Route{
{
ID: "a",
NetID: "routeA",
Peer: localPeerKey,
Network: netip.MustParsePrefix("100.64.30.250/30"),
NetworkType: route.IPv4Network,
Metric: 9999,
Masquerade: false,
Enabled: true,
},
{
ID: "b",
NetID: "routeB",
Peer: remotePeerKey1,
Network: netip.MustParsePrefix("8.8.9.9/32"),
NetworkType: route.IPv4Network,
Metric: 9999,
Masquerade: false,
Enabled: true,
},
},
inputSerial: 1,
shouldCheckServerRoutes: runtime.GOOS == "linux",
serverRoutesExpected: 1,
clientNetworkWatchersExpected: 1,
},
{
name: "Should Create 1 HA Route and 1 Standalone",
inputRoutes: []*route.Route{
{
ID: "a",
NetID: "routeA",
Peer: remotePeerKey1,
Network: netip.MustParsePrefix("8.8.20.0/24"),
NetworkType: route.IPv4Network,
Metric: 9999,
Masquerade: false,
Enabled: true,
},
{
ID: "b",
NetID: "routeA",
Peer: remotePeerKey2,
Network: netip.MustParsePrefix("8.8.20.0/24"),
NetworkType: route.IPv4Network,
Metric: 9999,
Masquerade: false,
Enabled: true,
},
{
ID: "c",
NetID: "routeB",
Peer: remotePeerKey1,
Network: netip.MustParsePrefix("8.8.9.9/32"),
NetworkType: route.IPv4Network,
Metric: 9999,
Masquerade: false,
Enabled: true,
},
},
inputSerial: 1,
clientNetworkWatchersExpected: 2,
},
{
name: "No Small Client Route Should Be Added",
inputRoutes: []*route.Route{
{
ID: "a",
NetID: "routeA",
Peer: remotePeerKey1,
Network: netip.MustParsePrefix("0.0.0.0/0"),
NetworkType: route.IPv4Network,
Metric: 9999,
Masquerade: false,
Enabled: true,
},
},
inputSerial: 1,
clientNetworkWatchersExpected: 0,
},
{
name: "No Server Routes Should Be Added To Non Linux",
inputRoutes: []*route.Route{
{
ID: "a",
NetID: "routeA",
Peer: localPeerKey,
Network: netip.MustParsePrefix("1.2.3.4/32"),
NetworkType: route.IPv4Network,
Metric: 9999,
Masquerade: false,
Enabled: true,
},
},
inputSerial: 1,
shouldCheckServerRoutes: runtime.GOOS != "linux",
serverRoutesExpected: 0,
clientNetworkWatchersExpected: 0,
},
{
name: "Remove 1 Client Route",
inputInitRoutes: []*route.Route{
{
ID: "a",
NetID: "routeA",
Peer: remotePeerKey1,
Network: netip.MustParsePrefix("100.64.251.250/30"),
NetworkType: route.IPv4Network,
Metric: 9999,
Masquerade: false,
Enabled: true,
},
{
ID: "b",
NetID: "routeB",
Peer: remotePeerKey1,
Network: netip.MustParsePrefix("8.8.8.8/32"),
NetworkType: route.IPv4Network,
Metric: 9999,
Masquerade: false,
Enabled: true,
},
},
inputRoutes: []*route.Route{
{
ID: "a",
NetID: "routeA",
Peer: remotePeerKey1,
Network: netip.MustParsePrefix("100.64.251.250/30"),
NetworkType: route.IPv4Network,
Metric: 9999,
Masquerade: false,
Enabled: true,
},
},
inputSerial: 1,
clientNetworkWatchersExpected: 1,
},
{
name: "Update Route to HA",
inputInitRoutes: []*route.Route{
{
ID: "a",
NetID: "routeA",
Peer: remotePeerKey1,
Network: netip.MustParsePrefix("100.64.251.250/30"),
NetworkType: route.IPv4Network,
Metric: 9999,
Masquerade: false,
Enabled: true,
},
{
ID: "b",
NetID: "routeB",
Peer: remotePeerKey1,
Network: netip.MustParsePrefix("8.8.8.8/32"),
NetworkType: route.IPv4Network,
Metric: 9999,
Masquerade: false,
Enabled: true,
},
},
inputRoutes: []*route.Route{
{
ID: "a",
NetID: "routeA",
Peer: remotePeerKey1,
Network: netip.MustParsePrefix("100.64.251.250/30"),
NetworkType: route.IPv4Network,
Metric: 9999,
Masquerade: false,
Enabled: true,
},
{
ID: "b",
NetID: "routeA",
Peer: remotePeerKey2,
Network: netip.MustParsePrefix("100.64.251.250/30"),
NetworkType: route.IPv4Network,
Metric: 9999,
Masquerade: false,
Enabled: true,
},
},
inputSerial: 1,
clientNetworkWatchersExpected: 1,
},
{
name: "Remove Client Routes",
inputInitRoutes: []*route.Route{
{
ID: "a",
NetID: "routeA",
Peer: remotePeerKey1,
Network: netip.MustParsePrefix("100.64.251.250/30"),
NetworkType: route.IPv4Network,
Metric: 9999,
Masquerade: false,
Enabled: true,
},
{
ID: "b",
NetID: "routeB",
Peer: remotePeerKey1,
Network: netip.MustParsePrefix("8.8.8.8/32"),
NetworkType: route.IPv4Network,
Metric: 9999,
Masquerade: false,
Enabled: true,
},
},
inputRoutes: []*route.Route{},
inputSerial: 1,
clientNetworkWatchersExpected: 0,
},
{
name: "Remove All Routes",
inputInitRoutes: []*route.Route{
{
ID: "a",
NetID: "routeA",
Peer: localPeerKey,
Network: netip.MustParsePrefix("100.64.251.250/30"),
NetworkType: route.IPv4Network,
Metric: 9999,
Masquerade: false,
Enabled: true,
},
{
ID: "b",
NetID: "routeB",
Peer: remotePeerKey1,
Network: netip.MustParsePrefix("8.8.8.8/32"),
NetworkType: route.IPv4Network,
Metric: 9999,
Masquerade: false,
Enabled: true,
},
},
inputRoutes: []*route.Route{},
inputSerial: 1,
shouldCheckServerRoutes: true,
serverRoutesExpected: 0,
clientNetworkWatchersExpected: 0,
},
{
name: "HA server should not register routes from the same HA group",
inputRoutes: []*route.Route{
{
ID: "l1",
NetID: "routeA",
Peer: localPeerKey,
Network: netip.MustParsePrefix("100.64.251.250/30"),
NetworkType: route.IPv4Network,
Metric: 9999,
Masquerade: false,
Enabled: true,
},
{
ID: "l2",
NetID: "routeA",
Peer: localPeerKey,
Network: netip.MustParsePrefix("8.8.9.8/32"),
NetworkType: route.IPv4Network,
Metric: 9999,
Masquerade: false,
Enabled: true,
},
{
ID: "r1",
NetID: "routeA",
Peer: remotePeerKey1,
Network: netip.MustParsePrefix("100.64.251.250/30"),
NetworkType: route.IPv4Network,
Metric: 9999,
Masquerade: false,
Enabled: true,
},
{
ID: "r2",
NetID: "routeC",
Peer: remotePeerKey1,
Network: netip.MustParsePrefix("8.8.9.9/32"),
NetworkType: route.IPv4Network,
Metric: 9999,
Masquerade: false,
Enabled: true,
},
},
inputSerial: 1,
shouldCheckServerRoutes: runtime.GOOS == "linux",
serverRoutesExpected: 2,
clientNetworkWatchersExpected: 1,
},
}
for n, testCase := range testCases {
t.Run(testCase.name, func(t *testing.T) {
wgInterface, err := iface.NewWGIFace(fmt.Sprintf("utun43%d", n), "100.65.65.2/24", iface.DefaultMTU)
require.NoError(t, err, "should create testing WGIface interface")
defer wgInterface.Close()
err = wgInterface.Create()
require.NoError(t, err, "should create testing wireguard interface")
statusRecorder := status.NewRecorder()
ctx := context.TODO()
routeManager := NewManager(ctx, localPeerKey, wgInterface, statusRecorder)
defer routeManager.Stop()
if len(testCase.inputInitRoutes) > 0 {
err = routeManager.UpdateRoutes(testCase.inputSerial, testCase.inputRoutes)
require.NoError(t, err, "should update routes with init routes")
}
err = routeManager.UpdateRoutes(testCase.inputSerial+uint64(len(testCase.inputInitRoutes)), testCase.inputRoutes)
require.NoError(t, err, "should update routes")
require.Len(t, routeManager.clientNetworks, testCase.clientNetworkWatchersExpected, "client networks size should match")
if testCase.shouldCheckServerRoutes {
require.Len(t, routeManager.serverRoutes, testCase.serverRoutesExpected, "server networks size should match")
}
})
}
}

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@@ -0,0 +1,27 @@
package routemanager
import (
"fmt"
"github.com/netbirdio/netbird/route"
)
// MockManager is the mock instance of a route manager
type MockManager struct {
UpdateRoutesFunc func(updateSerial uint64, newRoutes []*route.Route) error
StopFunc func()
}
// UpdateRoutes mock implementation of UpdateRoutes from Manager interface
func (m *MockManager) UpdateRoutes(updateSerial uint64, newRoutes []*route.Route) error {
if m.UpdateRoutesFunc != nil {
return m.UpdateRoutesFunc(updateSerial, newRoutes)
}
return fmt.Errorf("method UpdateRoutes is not implemented")
}
// Stop mock implementation of Stop from Manager interface
func (m *MockManager) Stop() {
if m.StopFunc != nil {
m.StopFunc()
}
}

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@@ -0,0 +1,432 @@
package routemanager
import (
"context"
"fmt"
"github.com/google/nftables/binaryutil"
"github.com/google/nftables/expr"
log "github.com/sirupsen/logrus"
"net"
"net/netip"
"sync"
)
import "github.com/google/nftables"
const (
nftablesTable = "netbird-rt"
nftablesRoutingForwardingChain = "netbird-rt-fwd"
nftablesRoutingNatChain = "netbird-rt-nat"
)
// constants needed to create nftable rules
const (
ipv4Len = 4
ipv4SrcOffset = 12
ipv4DestOffset = 16
ipv6Len = 16
ipv6SrcOffset = 8
ipv6DestOffset = 24
exprDirectionSource = "source"
exprDirectionDestination = "destination"
)
// some presets for building nftable rules
var (
zeroXor = binaryutil.NativeEndian.PutUint32(0)
zeroXor6 = append(binaryutil.NativeEndian.PutUint64(0), binaryutil.NativeEndian.PutUint64(0)...)
exprAllowRelatedEstablished = []expr.Any{
&expr.Ct{
Register: 1,
SourceRegister: false,
Key: 0,
},
&expr.Bitwise{
DestRegister: 1,
SourceRegister: 1,
Len: 4,
Mask: []uint8{0x6, 0x0, 0x0, 0x0},
Xor: zeroXor,
},
&expr.Cmp{
Register: 1,
Data: binaryutil.NativeEndian.PutUint32(0),
},
&expr.Counter{},
&expr.Verdict{
Kind: expr.VerdictAccept,
},
}
exprCounterAccept = []expr.Any{
&expr.Counter{},
&expr.Verdict{
Kind: expr.VerdictAccept,
},
}
)
type nftablesManager struct {
ctx context.Context
stop context.CancelFunc
conn *nftables.Conn
tableIPv4 *nftables.Table
tableIPv6 *nftables.Table
chains map[string]map[string]*nftables.Chain
rules map[string]*nftables.Rule
mux sync.Mutex
}
// CleanRoutingRules cleans existing nftables rules from the system
func (n *nftablesManager) CleanRoutingRules() {
n.mux.Lock()
defer n.mux.Unlock()
log.Debug("flushing tables")
if n.tableIPv4 != nil && n.tableIPv6 != nil {
n.conn.FlushTable(n.tableIPv6)
n.conn.FlushTable(n.tableIPv4)
}
log.Debugf("flushing tables result in: %v error", n.conn.Flush())
}
// RestoreOrCreateContainers restores existing nftables containers (tables and chains)
// if they don't exist, we create them
func (n *nftablesManager) RestoreOrCreateContainers() error {
n.mux.Lock()
defer n.mux.Unlock()
if n.tableIPv6 != nil && n.tableIPv4 != nil {
log.Debugf("nftables: containers already restored, skipping")
return nil
}
tables, err := n.conn.ListTables()
if err != nil {
return fmt.Errorf("nftables: unable to list tables: %v", err)
}
for _, table := range tables {
if table.Name == nftablesTable {
if table.Family == nftables.TableFamilyIPv4 {
n.tableIPv4 = table
continue
}
n.tableIPv6 = table
}
}
if n.tableIPv4 == nil {
n.tableIPv4 = n.conn.AddTable(&nftables.Table{
Name: nftablesTable,
Family: nftables.TableFamilyIPv4,
})
}
if n.tableIPv6 == nil {
n.tableIPv6 = n.conn.AddTable(&nftables.Table{
Name: nftablesTable,
Family: nftables.TableFamilyIPv6,
})
}
chains, err := n.conn.ListChains()
if err != nil {
return fmt.Errorf("nftables: unable to list chains: %v", err)
}
n.chains[ipv4] = make(map[string]*nftables.Chain)
n.chains[ipv6] = make(map[string]*nftables.Chain)
for _, chain := range chains {
switch {
case chain.Table.Name == nftablesTable && chain.Table.Family == nftables.TableFamilyIPv4:
n.chains[ipv4][chain.Name] = chain
case chain.Table.Name == nftablesTable && chain.Table.Family == nftables.TableFamilyIPv6:
n.chains[ipv6][chain.Name] = chain
}
}
if _, found := n.chains[ipv4][nftablesRoutingForwardingChain]; !found {
n.chains[ipv4][nftablesRoutingForwardingChain] = n.conn.AddChain(&nftables.Chain{
Name: nftablesRoutingForwardingChain,
Table: n.tableIPv4,
Hooknum: nftables.ChainHookForward,
Priority: nftables.ChainPriorityNATDest + 1,
Type: nftables.ChainTypeFilter,
})
}
if _, found := n.chains[ipv4][nftablesRoutingNatChain]; !found {
n.chains[ipv4][nftablesRoutingNatChain] = n.conn.AddChain(&nftables.Chain{
Name: nftablesRoutingNatChain,
Table: n.tableIPv4,
Hooknum: nftables.ChainHookPostrouting,
Priority: nftables.ChainPriorityNATSource - 1,
Type: nftables.ChainTypeNAT,
})
}
if _, found := n.chains[ipv6][nftablesRoutingForwardingChain]; !found {
n.chains[ipv6][nftablesRoutingForwardingChain] = n.conn.AddChain(&nftables.Chain{
Name: nftablesRoutingForwardingChain,
Table: n.tableIPv6,
Hooknum: nftables.ChainHookForward,
Priority: nftables.ChainPriorityNATDest + 1,
Type: nftables.ChainTypeFilter,
})
}
if _, found := n.chains[ipv6][nftablesRoutingNatChain]; !found {
n.chains[ipv6][nftablesRoutingNatChain] = n.conn.AddChain(&nftables.Chain{
Name: nftablesRoutingNatChain,
Table: n.tableIPv6,
Hooknum: nftables.ChainHookPostrouting,
Priority: nftables.ChainPriorityNATSource - 1,
Type: nftables.ChainTypeNAT,
})
}
err = n.refreshRulesMap()
if err != nil {
return err
}
n.checkOrCreateDefaultForwardingRules()
err = n.conn.Flush()
if err != nil {
return fmt.Errorf("nftables: unable to initialize table: %v", err)
}
return nil
}
// refreshRulesMap refreshes the rule map with the latest rules. this is useful to avoid
// duplicates and to get missing attributes that we don't have when adding new rules
func (n *nftablesManager) refreshRulesMap() error {
for _, registeredChains := range n.chains {
for _, chain := range registeredChains {
rules, err := n.conn.GetRules(chain.Table, chain)
if err != nil {
return fmt.Errorf("nftables: unable to list rules: %v", err)
}
for _, rule := range rules {
if len(rule.UserData) > 0 {
n.rules[string(rule.UserData)] = rule
}
}
}
}
return nil
}
// checkOrCreateDefaultForwardingRules checks if the default forwarding rules are enabled
func (n *nftablesManager) checkOrCreateDefaultForwardingRules() {
_, foundIPv4 := n.rules[ipv4Forwarding]
if !foundIPv4 {
n.rules[ipv4Forwarding] = n.conn.AddRule(&nftables.Rule{
Table: n.tableIPv4,
Chain: n.chains[ipv4][nftablesRoutingForwardingChain],
Exprs: exprAllowRelatedEstablished,
UserData: []byte(ipv4Forwarding),
})
}
_, foundIPv6 := n.rules[ipv6Forwarding]
if !foundIPv6 {
n.rules[ipv6Forwarding] = n.conn.AddRule(&nftables.Rule{
Table: n.tableIPv6,
Chain: n.chains[ipv6][nftablesRoutingForwardingChain],
Exprs: exprAllowRelatedEstablished,
UserData: []byte(ipv6Forwarding),
})
}
}
// InsertRoutingRules inserts a nftable rule pair to the forwarding chain and if enabled, to the nat chain
func (n *nftablesManager) InsertRoutingRules(pair routerPair) error {
n.mux.Lock()
defer n.mux.Unlock()
err := n.refreshRulesMap()
if err != nil {
return err
}
err = n.insertRoutingRule(forwardingFormat, nftablesRoutingForwardingChain, pair, false)
if err != nil {
return err
}
err = n.insertRoutingRule(inForwardingFormat, nftablesRoutingForwardingChain, getInPair(pair), false)
if err != nil {
return err
}
if pair.masquerade {
err = n.insertRoutingRule(natFormat, nftablesRoutingNatChain, pair, true)
if err != nil {
return err
}
err = n.insertRoutingRule(inNatFormat, nftablesRoutingNatChain, getInPair(pair), true)
if err != nil {
return err
}
}
err = n.conn.Flush()
if err != nil {
return fmt.Errorf("nftables: unable to insert rules for %s: %v", pair.destination, err)
}
return nil
}
// insertRoutingRule inserts a nftable rule to the conn client flush queue
func (n *nftablesManager) insertRoutingRule(format, chain string, pair routerPair, isNat bool) error {
prefix := netip.MustParsePrefix(pair.source)
sourceExp := generateCIDRMatcherExpressions("source", pair.source)
destExp := generateCIDRMatcherExpressions("destination", pair.destination)
var expression []expr.Any
if isNat {
expression = append(sourceExp, append(destExp, &expr.Counter{}, &expr.Masq{})...)
} else {
expression = append(sourceExp, append(destExp, exprCounterAccept...)...)
}
ruleKey := genKey(format, pair.ID)
_, exists := n.rules[ruleKey]
if exists {
err := n.removeRoutingRule(format, pair)
if err != nil {
return err
}
}
if prefix.Addr().Unmap().Is4() {
n.rules[ruleKey] = n.conn.InsertRule(&nftables.Rule{
Table: n.tableIPv4,
Chain: n.chains[ipv4][chain],
Exprs: expression,
UserData: []byte(ruleKey),
})
} else {
n.rules[ruleKey] = n.conn.InsertRule(&nftables.Rule{
Table: n.tableIPv6,
Chain: n.chains[ipv6][chain],
Exprs: expression,
UserData: []byte(ruleKey),
})
}
return nil
}
// RemoveRoutingRules removes a nftable rule pair from forwarding and nat chains
func (n *nftablesManager) RemoveRoutingRules(pair routerPair) error {
n.mux.Lock()
defer n.mux.Unlock()
err := n.refreshRulesMap()
if err != nil {
return err
}
err = n.removeRoutingRule(forwardingFormat, pair)
if err != nil {
return err
}
err = n.removeRoutingRule(inForwardingFormat, getInPair(pair))
if err != nil {
return err
}
err = n.removeRoutingRule(natFormat, pair)
if err != nil {
return err
}
err = n.removeRoutingRule(inNatFormat, getInPair(pair))
if err != nil {
return err
}
err = n.conn.Flush()
if err != nil {
return fmt.Errorf("nftables: received error while applying rule removal for %s: %v", pair.destination, err)
}
log.Debugf("nftables: removed rules for %s", pair.destination)
return nil
}
// removeRoutingRule add a nftable rule to the removal queue and delete from rules map
func (n *nftablesManager) removeRoutingRule(format string, pair routerPair) error {
ruleKey := genKey(format, pair.ID)
rule, found := n.rules[ruleKey]
if found {
ruleType := "forwarding"
if rule.Chain.Type == nftables.ChainTypeNAT {
ruleType = "nat"
}
err := n.conn.DelRule(rule)
if err != nil {
return fmt.Errorf("nftables: unable to remove %s rule for %s: %v", ruleType, pair.destination, err)
}
log.Debugf("nftables: removing %s rule for %s", ruleType, pair.destination)
delete(n.rules, ruleKey)
}
return nil
}
// getPayloadDirectives get expression directives based on ip version and direction
func getPayloadDirectives(direction string, isIPv4 bool, isIPv6 bool) (uint32, uint32, []byte) {
switch {
case direction == exprDirectionSource && isIPv4:
return ipv4SrcOffset, ipv4Len, zeroXor
case direction == exprDirectionDestination && isIPv4:
return ipv4DestOffset, ipv4Len, zeroXor
case direction == exprDirectionSource && isIPv6:
return ipv6SrcOffset, ipv6Len, zeroXor6
case direction == exprDirectionDestination && isIPv6:
return ipv6DestOffset, ipv6Len, zeroXor6
default:
panic("no matched payload directive")
}
}
// generateCIDRMatcherExpressions generates nftables expressions that matches a CIDR
func generateCIDRMatcherExpressions(direction string, cidr string) []expr.Any {
ip, network, _ := net.ParseCIDR(cidr)
ipToAdd, _ := netip.AddrFromSlice(ip)
add := ipToAdd.Unmap()
offSet, packetLen, zeroXor := getPayloadDirectives(direction, add.Is4(), add.Is6())
return []expr.Any{
// fetch src add
&expr.Payload{
DestRegister: 1,
Base: expr.PayloadBaseNetworkHeader,
Offset: offSet,
Len: packetLen,
},
// net mask
&expr.Bitwise{
DestRegister: 1,
SourceRegister: 1,
Len: packetLen,
Mask: network.Mask,
Xor: zeroXor,
},
// net address
&expr.Cmp{
Register: 1,
Data: add.AsSlice(),
},
}
}

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@@ -0,0 +1,333 @@
package routemanager
import (
"context"
"github.com/google/nftables"
"github.com/google/nftables/expr"
"github.com/stretchr/testify/assert"
"github.com/stretchr/testify/require"
"testing"
)
func TestNftablesManager_RestoreOrCreateContainers(t *testing.T) {
ctx, cancel := context.WithCancel(context.TODO())
manager := &nftablesManager{
ctx: ctx,
stop: cancel,
conn: &nftables.Conn{},
chains: make(map[string]map[string]*nftables.Chain),
rules: make(map[string]*nftables.Rule),
}
nftablesTestingClient := &nftables.Conn{}
defer manager.CleanRoutingRules()
err := manager.RestoreOrCreateContainers()
require.NoError(t, err, "shouldn't return error")
require.Len(t, manager.chains, 2, "should have created chains for ipv4 and ipv6")
require.Len(t, manager.chains[ipv4], 2, "should have created chains for ipv4")
require.Len(t, manager.chains[ipv4], 2, "should have created chains for ipv6")
require.Len(t, manager.rules, 2, "should have created rules for ipv4 and ipv6")
pair := routerPair{
ID: "abc",
source: "100.100.100.1/32",
destination: "100.100.100.0/24",
masquerade: true,
}
sourceExp := generateCIDRMatcherExpressions("source", pair.source)
destExp := generateCIDRMatcherExpressions("destination", pair.destination)
forward4Exp := append(sourceExp, append(destExp, exprCounterAccept...)...)
forward4RuleKey := genKey(forwardingFormat, pair.ID)
inserted4Forwarding := nftablesTestingClient.InsertRule(&nftables.Rule{
Table: manager.tableIPv4,
Chain: manager.chains[ipv4][nftablesRoutingForwardingChain],
Exprs: forward4Exp,
UserData: []byte(forward4RuleKey),
})
nat4Exp := append(sourceExp, append(destExp, &expr.Counter{}, &expr.Masq{})...)
nat4RuleKey := genKey(natFormat, pair.ID)
inserted4Nat := nftablesTestingClient.InsertRule(&nftables.Rule{
Table: manager.tableIPv4,
Chain: manager.chains[ipv4][nftablesRoutingNatChain],
Exprs: nat4Exp,
UserData: []byte(nat4RuleKey),
})
err = nftablesTestingClient.Flush()
require.NoError(t, err, "shouldn't return error")
pair = routerPair{
ID: "xyz",
source: "fc00::1/128",
destination: "fc11::/64",
masquerade: true,
}
sourceExp = generateCIDRMatcherExpressions("source", pair.source)
destExp = generateCIDRMatcherExpressions("destination", pair.destination)
forward6Exp := append(sourceExp, append(destExp, exprCounterAccept...)...)
forward6RuleKey := genKey(forwardingFormat, pair.ID)
inserted6Forwarding := nftablesTestingClient.InsertRule(&nftables.Rule{
Table: manager.tableIPv6,
Chain: manager.chains[ipv6][nftablesRoutingForwardingChain],
Exprs: forward6Exp,
UserData: []byte(forward6RuleKey),
})
nat6Exp := append(sourceExp, append(destExp, &expr.Counter{}, &expr.Masq{})...)
nat6RuleKey := genKey(natFormat, pair.ID)
inserted6Nat := nftablesTestingClient.InsertRule(&nftables.Rule{
Table: manager.tableIPv6,
Chain: manager.chains[ipv6][nftablesRoutingNatChain],
Exprs: nat6Exp,
UserData: []byte(nat6RuleKey),
})
err = nftablesTestingClient.Flush()
require.NoError(t, err, "shouldn't return error")
manager.tableIPv4 = nil
manager.tableIPv6 = nil
err = manager.RestoreOrCreateContainers()
require.NoError(t, err, "shouldn't return error")
require.Len(t, manager.chains, 2, "should have created chains for ipv4 and ipv6")
require.Len(t, manager.chains[ipv4], 2, "should have created chains for ipv4")
require.Len(t, manager.chains[ipv4], 2, "should have created chains for ipv6")
require.Len(t, manager.rules, 6, "should have restored all rules for ipv4 and ipv6")
foundRule, found := manager.rules[forward4RuleKey]
require.True(t, found, "forwarding rule should exist in the map")
assert.Equal(t, inserted4Forwarding.Exprs, foundRule.Exprs, "stored forwarding rule expressions should match")
foundRule, found = manager.rules[nat4RuleKey]
require.True(t, found, "nat rule should exist in the map")
// match len of output as nftables client doesn't return expressions with masquerade expression
assert.ElementsMatch(t, inserted4Nat.Exprs[:len(foundRule.Exprs)], foundRule.Exprs, "stored nat rule expressions should match")
foundRule, found = manager.rules[forward6RuleKey]
require.True(t, found, "forwarding rule should exist in the map")
assert.Equal(t, inserted6Forwarding.Exprs, foundRule.Exprs, "stored forward rule should match")
foundRule, found = manager.rules[nat6RuleKey]
require.True(t, found, "nat rule should exist in the map")
// match len of output as nftables client doesn't return expressions with masquerade expression
assert.ElementsMatch(t, inserted6Nat.Exprs[:len(foundRule.Exprs)], foundRule.Exprs, "stored nat rule should match")
}
func TestNftablesManager_InsertRoutingRules(t *testing.T) {
for _, testCase := range insertRuleTestCases {
t.Run(testCase.name, func(t *testing.T) {
ctx, cancel := context.WithCancel(context.TODO())
manager := &nftablesManager{
ctx: ctx,
stop: cancel,
conn: &nftables.Conn{},
chains: make(map[string]map[string]*nftables.Chain),
rules: make(map[string]*nftables.Rule),
}
nftablesTestingClient := &nftables.Conn{}
defer manager.CleanRoutingRules()
err := manager.RestoreOrCreateContainers()
require.NoError(t, err, "shouldn't return error")
err = manager.InsertRoutingRules(testCase.inputPair)
require.NoError(t, err, "forwarding pair should be inserted")
sourceExp := generateCIDRMatcherExpressions("source", testCase.inputPair.source)
destExp := generateCIDRMatcherExpressions("destination", testCase.inputPair.destination)
testingExpression := append(sourceExp, destExp...)
fwdRuleKey := genKey(forwardingFormat, testCase.inputPair.ID)
found := 0
for _, registeredChains := range manager.chains {
for _, chain := range registeredChains {
rules, err := nftablesTestingClient.GetRules(chain.Table, chain)
require.NoError(t, err, "should list rules for %s table and %s chain", chain.Table.Name, chain.Name)
for _, rule := range rules {
if len(rule.UserData) > 0 && string(rule.UserData) == fwdRuleKey {
require.ElementsMatchf(t, rule.Exprs[:len(testingExpression)], testingExpression, "forwarding rule elements should match")
found = 1
}
}
}
}
require.Equal(t, 1, found, "should find at least 1 rule to test")
if testCase.inputPair.masquerade {
natRuleKey := genKey(natFormat, testCase.inputPair.ID)
found := 0
for _, registeredChains := range manager.chains {
for _, chain := range registeredChains {
rules, err := nftablesTestingClient.GetRules(chain.Table, chain)
require.NoError(t, err, "should list rules for %s table and %s chain", chain.Table.Name, chain.Name)
for _, rule := range rules {
if len(rule.UserData) > 0 && string(rule.UserData) == natRuleKey {
require.ElementsMatchf(t, rule.Exprs[:len(testingExpression)], testingExpression, "nat rule elements should match")
found = 1
}
}
}
}
require.Equal(t, 1, found, "should find at least 1 rule to test")
}
sourceExp = generateCIDRMatcherExpressions("source", getInPair(testCase.inputPair).source)
destExp = generateCIDRMatcherExpressions("destination", getInPair(testCase.inputPair).destination)
testingExpression = append(sourceExp, destExp...)
inFwdRuleKey := genKey(inForwardingFormat, testCase.inputPair.ID)
found = 0
for _, registeredChains := range manager.chains {
for _, chain := range registeredChains {
rules, err := nftablesTestingClient.GetRules(chain.Table, chain)
require.NoError(t, err, "should list rules for %s table and %s chain", chain.Table.Name, chain.Name)
for _, rule := range rules {
if len(rule.UserData) > 0 && string(rule.UserData) == inFwdRuleKey {
require.ElementsMatchf(t, rule.Exprs[:len(testingExpression)], testingExpression, "income forwarding rule elements should match")
found = 1
}
}
}
}
require.Equal(t, 1, found, "should find at least 1 rule to test")
if testCase.inputPair.masquerade {
inNatRuleKey := genKey(inNatFormat, testCase.inputPair.ID)
found := 0
for _, registeredChains := range manager.chains {
for _, chain := range registeredChains {
rules, err := nftablesTestingClient.GetRules(chain.Table, chain)
require.NoError(t, err, "should list rules for %s table and %s chain", chain.Table.Name, chain.Name)
for _, rule := range rules {
if len(rule.UserData) > 0 && string(rule.UserData) == inNatRuleKey {
require.ElementsMatchf(t, rule.Exprs[:len(testingExpression)], testingExpression, "income nat rule elements should match")
found = 1
}
}
}
}
require.Equal(t, 1, found, "should find at least 1 rule to test")
}
})
}
}
func TestNftablesManager_RemoveRoutingRules(t *testing.T) {
for _, testCase := range removeRuleTestCases {
t.Run(testCase.name, func(t *testing.T) {
ctx, cancel := context.WithCancel(context.TODO())
manager := &nftablesManager{
ctx: ctx,
stop: cancel,
conn: &nftables.Conn{},
chains: make(map[string]map[string]*nftables.Chain),
rules: make(map[string]*nftables.Rule),
}
nftablesTestingClient := &nftables.Conn{}
defer manager.CleanRoutingRules()
err := manager.RestoreOrCreateContainers()
require.NoError(t, err, "shouldn't return error")
table := manager.tableIPv4
if testCase.ipVersion == ipv6 {
table = manager.tableIPv6
}
sourceExp := generateCIDRMatcherExpressions("source", testCase.inputPair.source)
destExp := generateCIDRMatcherExpressions("destination", testCase.inputPair.destination)
forwardExp := append(sourceExp, append(destExp, exprCounterAccept...)...)
forwardRuleKey := genKey(forwardingFormat, testCase.inputPair.ID)
insertedForwarding := nftablesTestingClient.InsertRule(&nftables.Rule{
Table: table,
Chain: manager.chains[testCase.ipVersion][nftablesRoutingForwardingChain],
Exprs: forwardExp,
UserData: []byte(forwardRuleKey),
})
natExp := append(sourceExp, append(destExp, &expr.Counter{}, &expr.Masq{})...)
natRuleKey := genKey(natFormat, testCase.inputPair.ID)
insertedNat := nftablesTestingClient.InsertRule(&nftables.Rule{
Table: table,
Chain: manager.chains[testCase.ipVersion][nftablesRoutingNatChain],
Exprs: natExp,
UserData: []byte(natRuleKey),
})
sourceExp = generateCIDRMatcherExpressions("source", getInPair(testCase.inputPair).source)
destExp = generateCIDRMatcherExpressions("destination", getInPair(testCase.inputPair).destination)
forwardExp = append(sourceExp, append(destExp, exprCounterAccept...)...)
inForwardRuleKey := genKey(inForwardingFormat, testCase.inputPair.ID)
insertedInForwarding := nftablesTestingClient.InsertRule(&nftables.Rule{
Table: table,
Chain: manager.chains[testCase.ipVersion][nftablesRoutingForwardingChain],
Exprs: forwardExp,
UserData: []byte(inForwardRuleKey),
})
natExp = append(sourceExp, append(destExp, &expr.Counter{}, &expr.Masq{})...)
inNatRuleKey := genKey(inNatFormat, testCase.inputPair.ID)
insertedInNat := nftablesTestingClient.InsertRule(&nftables.Rule{
Table: table,
Chain: manager.chains[testCase.ipVersion][nftablesRoutingNatChain],
Exprs: natExp,
UserData: []byte(inNatRuleKey),
})
err = nftablesTestingClient.Flush()
require.NoError(t, err, "shouldn't return error")
manager.tableIPv4 = nil
manager.tableIPv6 = nil
err = manager.RestoreOrCreateContainers()
require.NoError(t, err, "shouldn't return error")
err = manager.RemoveRoutingRules(testCase.inputPair)
require.NoError(t, err, "shouldn't return error")
for _, registeredChains := range manager.chains {
for _, chain := range registeredChains {
rules, err := nftablesTestingClient.GetRules(chain.Table, chain)
require.NoError(t, err, "should list rules for %s table and %s chain", chain.Table.Name, chain.Name)
for _, rule := range rules {
if len(rule.UserData) > 0 {
require.NotEqual(t, insertedForwarding.UserData, rule.UserData, "forwarding rule should not exist")
require.NotEqual(t, insertedNat.UserData, rule.UserData, "nat rule should not exist")
require.NotEqual(t, insertedInForwarding.UserData, rule.UserData, "income forwarding rule should not exist")
require.NotEqual(t, insertedInNat.UserData, rule.UserData, "income nat rule should not exist")
}
}
}
}
})
}
}

View File

@@ -0,0 +1,67 @@
package routemanager
import (
"github.com/netbirdio/netbird/route"
log "github.com/sirupsen/logrus"
"net/netip"
"sync"
)
type serverRouter struct {
routes map[string]*route.Route
// best effort to keep net forward configuration as it was
netForwardHistoryEnabled bool
mux sync.Mutex
firewall firewallManager
}
type routerPair struct {
ID string
source string
destination string
masquerade bool
}
func routeToRouterPair(source string, route *route.Route) routerPair {
parsed := netip.MustParsePrefix(source).Masked()
return routerPair{
ID: route.ID,
source: parsed.String(),
destination: route.Network.Masked().String(),
masquerade: route.Masquerade,
}
}
func (m *DefaultManager) removeFromServerNetwork(route *route.Route) error {
select {
case <-m.ctx.Done():
log.Infof("not removing from server network because context is done")
return m.ctx.Err()
default:
m.serverRouter.mux.Lock()
defer m.serverRouter.mux.Unlock()
err := m.serverRouter.firewall.RemoveRoutingRules(routeToRouterPair(m.wgInterface.Address.String(), route))
if err != nil {
return err
}
delete(m.serverRouter.routes, route.ID)
return nil
}
}
func (m *DefaultManager) addToServerNetwork(route *route.Route) error {
select {
case <-m.ctx.Done():
log.Infof("not adding to server network because context is done")
return m.ctx.Err()
default:
m.serverRouter.mux.Lock()
defer m.serverRouter.mux.Unlock()
err := m.serverRouter.firewall.InsertRoutingRules(routeToRouterPair(m.wgInterface.Address.String(), route))
if err != nil {
return err
}
m.serverRouter.routes[route.ID] = route
return nil
}
}

View File

@@ -0,0 +1,58 @@
package routemanager
import (
"fmt"
"github.com/libp2p/go-netroute"
log "github.com/sirupsen/logrus"
"net"
"net/netip"
)
var errRouteNotFound = fmt.Errorf("route not found")
func addToRouteTableIfNoExists(prefix netip.Prefix, addr string) error {
gateway, err := getExistingRIBRouteGateway(netip.MustParsePrefix("0.0.0.0/0"))
if err != nil && err != errRouteNotFound {
return err
}
prefixGateway, err := getExistingRIBRouteGateway(prefix)
if err != nil && err != errRouteNotFound {
return err
}
if prefixGateway != nil && !prefixGateway.Equal(gateway) {
log.Warnf("skipping adding a new route for network %s because it already exists and is pointing to the non default gateway: %s", prefix, prefixGateway)
return nil
}
return addToRouteTable(prefix, addr)
}
func removeFromRouteTableIfNonSystem(prefix netip.Prefix, addr string) error {
addrIP := net.ParseIP(addr)
prefixGateway, err := getExistingRIBRouteGateway(prefix)
if err != nil {
return err
}
if prefixGateway != nil && !prefixGateway.Equal(addrIP) {
log.Warnf("route for network %s is pointing to a different gateway: %s, should be pointing to: %s, not removing", prefix, prefixGateway, addrIP)
return nil
}
return removeFromRouteTable(prefix)
}
func getExistingRIBRouteGateway(prefix netip.Prefix) (net.IP, error) {
r, err := netroute.New()
if err != nil {
return nil, err
}
_, gateway, preferredSrc, err := r.Route(prefix.Addr().AsSlice())
if err != nil {
log.Errorf("getting routes returned an error: %v", err)
return nil, errRouteNotFound
}
if gateway == nil {
return preferredSrc, nil
}
return gateway, nil
}

View File

@@ -0,0 +1,73 @@
package routemanager
import (
"github.com/vishvananda/netlink"
"net"
"net/netip"
"os"
)
const ipv4ForwardingPath = "/proc/sys/net/ipv4/ip_forward"
func addToRouteTable(prefix netip.Prefix, addr string) error {
_, ipNet, err := net.ParseCIDR(prefix.String())
if err != nil {
return err
}
addrMask := "/32"
if prefix.Addr().Unmap().Is6() {
addrMask = "/128"
}
ip, _, err := net.ParseCIDR(addr + addrMask)
if err != nil {
return err
}
route := &netlink.Route{
Scope: netlink.SCOPE_UNIVERSE,
Dst: ipNet,
Gw: ip,
}
err = netlink.RouteAdd(route)
if err != nil {
return err
}
return nil
}
func removeFromRouteTable(prefix netip.Prefix) error {
_, ipNet, err := net.ParseCIDR(prefix.String())
if err != nil {
return err
}
route := &netlink.Route{
Scope: netlink.SCOPE_UNIVERSE,
Dst: ipNet,
}
err = netlink.RouteDel(route)
if err != nil {
return err
}
return nil
}
func enableIPForwarding() error {
err := os.WriteFile(ipv4ForwardingPath, []byte("1"), 0644)
return err
}
func isNetForwardHistoryEnabled() bool {
out, err := os.ReadFile(ipv4ForwardingPath)
if err != nil {
// todo
panic(err)
}
return string(out) == "1"
}

View File

@@ -0,0 +1,41 @@
//go:build !linux
// +build !linux
package routemanager
import (
log "github.com/sirupsen/logrus"
"net/netip"
"os/exec"
"runtime"
)
func addToRouteTable(prefix netip.Prefix, addr string) error {
cmd := exec.Command("route", "add", prefix.String(), addr)
out, err := cmd.Output()
if err != nil {
return err
}
log.Debugf(string(out))
return nil
}
func removeFromRouteTable(prefix netip.Prefix) error {
cmd := exec.Command("route", "delete", prefix.String())
out, err := cmd.Output()
if err != nil {
return err
}
log.Debugf(string(out))
return nil
}
func enableIPForwarding() error {
log.Infof("enable IP forwarding is not implemented on %s", runtime.GOOS)
return nil
}
func isNetForwardHistoryEnabled() bool {
log.Infof("check netforwad history is not implemented on %s", runtime.GOOS)
return false
}

View File

@@ -0,0 +1,111 @@
package routemanager
import (
"fmt"
"github.com/netbirdio/netbird/iface"
"github.com/stretchr/testify/require"
"net"
"net/netip"
"testing"
)
func TestAddRemoveRoutes(t *testing.T) {
testCases := []struct {
name string
prefix netip.Prefix
shouldRouteToWireguard bool
shouldBeRemoved bool
}{
{
name: "Should Add And Remove Route",
prefix: netip.MustParsePrefix("100.66.120.0/24"),
shouldRouteToWireguard: true,
shouldBeRemoved: true,
},
{
name: "Should Not Add Or Remove Route",
prefix: netip.MustParsePrefix("127.0.0.1/32"),
shouldRouteToWireguard: false,
shouldBeRemoved: false,
},
}
for n, testCase := range testCases {
t.Run(testCase.name, func(t *testing.T) {
wgInterface, err := iface.NewWGIFace(fmt.Sprintf("utun53%d", n), "100.65.75.2/24", iface.DefaultMTU)
require.NoError(t, err, "should create testing WGIface interface")
defer wgInterface.Close()
err = wgInterface.Create()
require.NoError(t, err, "should create testing wireguard interface")
err = addToRouteTableIfNoExists(testCase.prefix, wgInterface.GetAddress().IP.String())
require.NoError(t, err, "should not return err")
prefixGateway, err := getExistingRIBRouteGateway(testCase.prefix)
require.NoError(t, err, "should not return err")
if testCase.shouldRouteToWireguard {
require.Equal(t, wgInterface.GetAddress().IP.String(), prefixGateway.String(), "route should point to wireguard interface IP")
} else {
require.NotEqual(t, wgInterface.GetAddress().IP.String(), prefixGateway.String(), "route should point to a different interface")
}
err = removeFromRouteTableIfNonSystem(testCase.prefix, wgInterface.GetAddress().IP.String())
require.NoError(t, err, "should not return err")
prefixGateway, err = getExistingRIBRouteGateway(testCase.prefix)
require.NoError(t, err, "should not return err")
internetGateway, err := getExistingRIBRouteGateway(netip.MustParsePrefix("0.0.0.0/0"))
require.NoError(t, err)
if testCase.shouldBeRemoved {
require.Equal(t, internetGateway, prefixGateway, "route should be pointing to default internet gateway")
} else {
require.NotEqual(t, internetGateway, prefixGateway, "route should be pointing to a different gateway than the internet gateway")
}
})
}
}
func TestGetExistingRIBRouteGateway(t *testing.T) {
gateway, err := getExistingRIBRouteGateway(netip.MustParsePrefix("0.0.0.0/0"))
if err != nil {
t.Fatal("shouldn't return error when fetching the gateway: ", err)
}
if gateway == nil {
t.Fatal("should return a gateway")
}
addresses, err := net.InterfaceAddrs()
if err != nil {
t.Fatal("shouldn't return error when fetching interface addresses: ", err)
}
var testingIP string
var testingPrefix netip.Prefix
for _, address := range addresses {
if address.Network() != "ip+net" {
continue
}
prefix := netip.MustParsePrefix(address.String())
if !prefix.Addr().IsLoopback() && prefix.Addr().Is4() {
testingIP = prefix.Addr().String()
testingPrefix = prefix.Masked()
break
}
}
localIP, err := getExistingRIBRouteGateway(testingPrefix)
if err != nil {
t.Fatal("shouldn't return error: ", err)
}
if localIP == nil {
t.Fatal("should return a gateway for local network")
}
if localIP.String() == gateway.String() {
t.Fatal("local ip should not match with gateway IP")
}
if localIP.String() != testingIP {
t.Fatalf("local ip should match with testing IP: want %s got %s", testingIP, localIP.String())
}
}

View File

@@ -1,9 +1,8 @@
package main
import (
"os"
"github.com/netbirdio/netbird/client/cmd"
"os"
)
func main() {

View File

@@ -1,7 +1,7 @@
// Code generated by protoc-gen-go. DO NOT EDIT.
// versions:
// protoc-gen-go v1.26.0
// protoc v3.19.4
// protoc v3.21.9
// source: daemon.proto
package proto
@@ -10,6 +10,7 @@ import (
protoreflect "google.golang.org/protobuf/reflect/protoreflect"
protoimpl "google.golang.org/protobuf/runtime/protoimpl"
_ "google.golang.org/protobuf/types/descriptorpb"
timestamppb "google.golang.org/protobuf/types/known/timestamppb"
reflect "reflect"
sync "sync"
)
@@ -332,6 +333,8 @@ type StatusRequest struct {
state protoimpl.MessageState
sizeCache protoimpl.SizeCache
unknownFields protoimpl.UnknownFields
GetFullPeerStatus bool `protobuf:"varint,1,opt,name=getFullPeerStatus,proto3" json:"getFullPeerStatus,omitempty"`
}
func (x *StatusRequest) Reset() {
@@ -366,13 +369,23 @@ func (*StatusRequest) Descriptor() ([]byte, []int) {
return file_daemon_proto_rawDescGZIP(), []int{6}
}
func (x *StatusRequest) GetGetFullPeerStatus() bool {
if x != nil {
return x.GetFullPeerStatus
}
return false
}
type StatusResponse struct {
state protoimpl.MessageState
sizeCache protoimpl.SizeCache
unknownFields protoimpl.UnknownFields
// status of the server.
Status string `protobuf:"bytes,1,opt,name=status,proto3" json:"status,omitempty"`
Status string `protobuf:"bytes,1,opt,name=status,proto3" json:"status,omitempty"`
FullStatus *FullStatus `protobuf:"bytes,2,opt,name=fullStatus,proto3" json:"fullStatus,omitempty"`
// NetBird daemon version
DaemonVersion string `protobuf:"bytes,3,opt,name=daemonVersion,proto3" json:"daemonVersion,omitempty"`
}
func (x *StatusResponse) Reset() {
@@ -414,6 +427,20 @@ func (x *StatusResponse) GetStatus() string {
return ""
}
func (x *StatusResponse) GetFullStatus() *FullStatus {
if x != nil {
return x.FullStatus
}
return nil
}
func (x *StatusResponse) GetDaemonVersion() string {
if x != nil {
return x.DaemonVersion
}
return ""
}
type DownRequest struct {
state protoimpl.MessageState
sizeCache protoimpl.SizeCache
@@ -612,83 +639,514 @@ func (x *GetConfigResponse) GetAdminURL() string {
return ""
}
// PeerState contains the latest state of a peer
type PeerState struct {
state protoimpl.MessageState
sizeCache protoimpl.SizeCache
unknownFields protoimpl.UnknownFields
IP string `protobuf:"bytes,1,opt,name=IP,proto3" json:"IP,omitempty"`
PubKey string `protobuf:"bytes,2,opt,name=pubKey,proto3" json:"pubKey,omitempty"`
ConnStatus string `protobuf:"bytes,3,opt,name=connStatus,proto3" json:"connStatus,omitempty"`
ConnStatusUpdate *timestamppb.Timestamp `protobuf:"bytes,4,opt,name=connStatusUpdate,proto3" json:"connStatusUpdate,omitempty"`
Relayed bool `protobuf:"varint,5,opt,name=relayed,proto3" json:"relayed,omitempty"`
Direct bool `protobuf:"varint,6,opt,name=direct,proto3" json:"direct,omitempty"`
LocalIceCandidateType string `protobuf:"bytes,7,opt,name=localIceCandidateType,proto3" json:"localIceCandidateType,omitempty"`
RemoteIceCandidateType string `protobuf:"bytes,8,opt,name=remoteIceCandidateType,proto3" json:"remoteIceCandidateType,omitempty"`
Fqdn string `protobuf:"bytes,9,opt,name=fqdn,proto3" json:"fqdn,omitempty"`
}
func (x *PeerState) Reset() {
*x = PeerState{}
if protoimpl.UnsafeEnabled {
mi := &file_daemon_proto_msgTypes[12]
ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
ms.StoreMessageInfo(mi)
}
}
func (x *PeerState) String() string {
return protoimpl.X.MessageStringOf(x)
}
func (*PeerState) ProtoMessage() {}
func (x *PeerState) ProtoReflect() protoreflect.Message {
mi := &file_daemon_proto_msgTypes[12]
if protoimpl.UnsafeEnabled && x != nil {
ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
if ms.LoadMessageInfo() == nil {
ms.StoreMessageInfo(mi)
}
return ms
}
return mi.MessageOf(x)
}
// Deprecated: Use PeerState.ProtoReflect.Descriptor instead.
func (*PeerState) Descriptor() ([]byte, []int) {
return file_daemon_proto_rawDescGZIP(), []int{12}
}
func (x *PeerState) GetIP() string {
if x != nil {
return x.IP
}
return ""
}
func (x *PeerState) GetPubKey() string {
if x != nil {
return x.PubKey
}
return ""
}
func (x *PeerState) GetConnStatus() string {
if x != nil {
return x.ConnStatus
}
return ""
}
func (x *PeerState) GetConnStatusUpdate() *timestamppb.Timestamp {
if x != nil {
return x.ConnStatusUpdate
}
return nil
}
func (x *PeerState) GetRelayed() bool {
if x != nil {
return x.Relayed
}
return false
}
func (x *PeerState) GetDirect() bool {
if x != nil {
return x.Direct
}
return false
}
func (x *PeerState) GetLocalIceCandidateType() string {
if x != nil {
return x.LocalIceCandidateType
}
return ""
}
func (x *PeerState) GetRemoteIceCandidateType() string {
if x != nil {
return x.RemoteIceCandidateType
}
return ""
}
func (x *PeerState) GetFqdn() string {
if x != nil {
return x.Fqdn
}
return ""
}
// LocalPeerState contains the latest state of the local peer
type LocalPeerState struct {
state protoimpl.MessageState
sizeCache protoimpl.SizeCache
unknownFields protoimpl.UnknownFields
IP string `protobuf:"bytes,1,opt,name=IP,proto3" json:"IP,omitempty"`
PubKey string `protobuf:"bytes,2,opt,name=pubKey,proto3" json:"pubKey,omitempty"`
KernelInterface bool `protobuf:"varint,3,opt,name=kernelInterface,proto3" json:"kernelInterface,omitempty"`
Fqdn string `protobuf:"bytes,4,opt,name=fqdn,proto3" json:"fqdn,omitempty"`
}
func (x *LocalPeerState) Reset() {
*x = LocalPeerState{}
if protoimpl.UnsafeEnabled {
mi := &file_daemon_proto_msgTypes[13]
ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
ms.StoreMessageInfo(mi)
}
}
func (x *LocalPeerState) String() string {
return protoimpl.X.MessageStringOf(x)
}
func (*LocalPeerState) ProtoMessage() {}
func (x *LocalPeerState) ProtoReflect() protoreflect.Message {
mi := &file_daemon_proto_msgTypes[13]
if protoimpl.UnsafeEnabled && x != nil {
ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
if ms.LoadMessageInfo() == nil {
ms.StoreMessageInfo(mi)
}
return ms
}
return mi.MessageOf(x)
}
// Deprecated: Use LocalPeerState.ProtoReflect.Descriptor instead.
func (*LocalPeerState) Descriptor() ([]byte, []int) {
return file_daemon_proto_rawDescGZIP(), []int{13}
}
func (x *LocalPeerState) GetIP() string {
if x != nil {
return x.IP
}
return ""
}
func (x *LocalPeerState) GetPubKey() string {
if x != nil {
return x.PubKey
}
return ""
}
func (x *LocalPeerState) GetKernelInterface() bool {
if x != nil {
return x.KernelInterface
}
return false
}
func (x *LocalPeerState) GetFqdn() string {
if x != nil {
return x.Fqdn
}
return ""
}
// SignalState contains the latest state of a signal connection
type SignalState struct {
state protoimpl.MessageState
sizeCache protoimpl.SizeCache
unknownFields protoimpl.UnknownFields
URL string `protobuf:"bytes,1,opt,name=URL,proto3" json:"URL,omitempty"`
Connected bool `protobuf:"varint,2,opt,name=connected,proto3" json:"connected,omitempty"`
}
func (x *SignalState) Reset() {
*x = SignalState{}
if protoimpl.UnsafeEnabled {
mi := &file_daemon_proto_msgTypes[14]
ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
ms.StoreMessageInfo(mi)
}
}
func (x *SignalState) String() string {
return protoimpl.X.MessageStringOf(x)
}
func (*SignalState) ProtoMessage() {}
func (x *SignalState) ProtoReflect() protoreflect.Message {
mi := &file_daemon_proto_msgTypes[14]
if protoimpl.UnsafeEnabled && x != nil {
ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
if ms.LoadMessageInfo() == nil {
ms.StoreMessageInfo(mi)
}
return ms
}
return mi.MessageOf(x)
}
// Deprecated: Use SignalState.ProtoReflect.Descriptor instead.
func (*SignalState) Descriptor() ([]byte, []int) {
return file_daemon_proto_rawDescGZIP(), []int{14}
}
func (x *SignalState) GetURL() string {
if x != nil {
return x.URL
}
return ""
}
func (x *SignalState) GetConnected() bool {
if x != nil {
return x.Connected
}
return false
}
// ManagementState contains the latest state of a management connection
type ManagementState struct {
state protoimpl.MessageState
sizeCache protoimpl.SizeCache
unknownFields protoimpl.UnknownFields
URL string `protobuf:"bytes,1,opt,name=URL,proto3" json:"URL,omitempty"`
Connected bool `protobuf:"varint,2,opt,name=connected,proto3" json:"connected,omitempty"`
}
func (x *ManagementState) Reset() {
*x = ManagementState{}
if protoimpl.UnsafeEnabled {
mi := &file_daemon_proto_msgTypes[15]
ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
ms.StoreMessageInfo(mi)
}
}
func (x *ManagementState) String() string {
return protoimpl.X.MessageStringOf(x)
}
func (*ManagementState) ProtoMessage() {}
func (x *ManagementState) ProtoReflect() protoreflect.Message {
mi := &file_daemon_proto_msgTypes[15]
if protoimpl.UnsafeEnabled && x != nil {
ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
if ms.LoadMessageInfo() == nil {
ms.StoreMessageInfo(mi)
}
return ms
}
return mi.MessageOf(x)
}
// Deprecated: Use ManagementState.ProtoReflect.Descriptor instead.
func (*ManagementState) Descriptor() ([]byte, []int) {
return file_daemon_proto_rawDescGZIP(), []int{15}
}
func (x *ManagementState) GetURL() string {
if x != nil {
return x.URL
}
return ""
}
func (x *ManagementState) GetConnected() bool {
if x != nil {
return x.Connected
}
return false
}
// FullStatus contains the full state held by the Status instance
type FullStatus struct {
state protoimpl.MessageState
sizeCache protoimpl.SizeCache
unknownFields protoimpl.UnknownFields
ManagementState *ManagementState `protobuf:"bytes,1,opt,name=managementState,proto3" json:"managementState,omitempty"`
SignalState *SignalState `protobuf:"bytes,2,opt,name=signalState,proto3" json:"signalState,omitempty"`
LocalPeerState *LocalPeerState `protobuf:"bytes,3,opt,name=localPeerState,proto3" json:"localPeerState,omitempty"`
Peers []*PeerState `protobuf:"bytes,4,rep,name=peers,proto3" json:"peers,omitempty"`
}
func (x *FullStatus) Reset() {
*x = FullStatus{}
if protoimpl.UnsafeEnabled {
mi := &file_daemon_proto_msgTypes[16]
ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
ms.StoreMessageInfo(mi)
}
}
func (x *FullStatus) String() string {
return protoimpl.X.MessageStringOf(x)
}
func (*FullStatus) ProtoMessage() {}
func (x *FullStatus) ProtoReflect() protoreflect.Message {
mi := &file_daemon_proto_msgTypes[16]
if protoimpl.UnsafeEnabled && x != nil {
ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
if ms.LoadMessageInfo() == nil {
ms.StoreMessageInfo(mi)
}
return ms
}
return mi.MessageOf(x)
}
// Deprecated: Use FullStatus.ProtoReflect.Descriptor instead.
func (*FullStatus) Descriptor() ([]byte, []int) {
return file_daemon_proto_rawDescGZIP(), []int{16}
}
func (x *FullStatus) GetManagementState() *ManagementState {
if x != nil {
return x.ManagementState
}
return nil
}
func (x *FullStatus) GetSignalState() *SignalState {
if x != nil {
return x.SignalState
}
return nil
}
func (x *FullStatus) GetLocalPeerState() *LocalPeerState {
if x != nil {
return x.LocalPeerState
}
return nil
}
func (x *FullStatus) GetPeers() []*PeerState {
if x != nil {
return x.Peers
}
return nil
}
var File_daemon_proto protoreflect.FileDescriptor
var file_daemon_proto_rawDesc = []byte{
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}
var (
@@ -703,39 +1161,51 @@ func file_daemon_proto_rawDescGZIP() []byte {
return file_daemon_proto_rawDescData
}
var file_daemon_proto_msgTypes = make([]protoimpl.MessageInfo, 12)
var file_daemon_proto_msgTypes = make([]protoimpl.MessageInfo, 17)
var file_daemon_proto_goTypes = []interface{}{
(*LoginRequest)(nil), // 0: daemon.LoginRequest
(*LoginResponse)(nil), // 1: daemon.LoginResponse
(*WaitSSOLoginRequest)(nil), // 2: daemon.WaitSSOLoginRequest
(*WaitSSOLoginResponse)(nil), // 3: daemon.WaitSSOLoginResponse
(*UpRequest)(nil), // 4: daemon.UpRequest
(*UpResponse)(nil), // 5: daemon.UpResponse
(*StatusRequest)(nil), // 6: daemon.StatusRequest
(*StatusResponse)(nil), // 7: daemon.StatusResponse
(*DownRequest)(nil), // 8: daemon.DownRequest
(*DownResponse)(nil), // 9: daemon.DownResponse
(*GetConfigRequest)(nil), // 10: daemon.GetConfigRequest
(*GetConfigResponse)(nil), // 11: daemon.GetConfigResponse
(*LoginRequest)(nil), // 0: daemon.LoginRequest
(*LoginResponse)(nil), // 1: daemon.LoginResponse
(*WaitSSOLoginRequest)(nil), // 2: daemon.WaitSSOLoginRequest
(*WaitSSOLoginResponse)(nil), // 3: daemon.WaitSSOLoginResponse
(*UpRequest)(nil), // 4: daemon.UpRequest
(*UpResponse)(nil), // 5: daemon.UpResponse
(*StatusRequest)(nil), // 6: daemon.StatusRequest
(*StatusResponse)(nil), // 7: daemon.StatusResponse
(*DownRequest)(nil), // 8: daemon.DownRequest
(*DownResponse)(nil), // 9: daemon.DownResponse
(*GetConfigRequest)(nil), // 10: daemon.GetConfigRequest
(*GetConfigResponse)(nil), // 11: daemon.GetConfigResponse
(*PeerState)(nil), // 12: daemon.PeerState
(*LocalPeerState)(nil), // 13: daemon.LocalPeerState
(*SignalState)(nil), // 14: daemon.SignalState
(*ManagementState)(nil), // 15: daemon.ManagementState
(*FullStatus)(nil), // 16: daemon.FullStatus
(*timestamppb.Timestamp)(nil), // 17: google.protobuf.Timestamp
}
var file_daemon_proto_depIdxs = []int32{
0, // 0: daemon.DaemonService.Login:input_type -> daemon.LoginRequest
2, // 1: daemon.DaemonService.WaitSSOLogin:input_type -> daemon.WaitSSOLoginRequest
4, // 2: daemon.DaemonService.Up:input_type -> daemon.UpRequest
6, // 3: daemon.DaemonService.Status:input_type -> daemon.StatusRequest
8, // 4: daemon.DaemonService.Down:input_type -> daemon.DownRequest
10, // 5: daemon.DaemonService.GetConfig:input_type -> daemon.GetConfigRequest
1, // 6: daemon.DaemonService.Login:output_type -> daemon.LoginResponse
3, // 7: daemon.DaemonService.WaitSSOLogin:output_type -> daemon.WaitSSOLoginResponse
5, // 8: daemon.DaemonService.Up:output_type -> daemon.UpResponse
7, // 9: daemon.DaemonService.Status:output_type -> daemon.StatusResponse
9, // 10: daemon.DaemonService.Down:output_type -> daemon.DownResponse
11, // 11: daemon.DaemonService.GetConfig:output_type -> daemon.GetConfigResponse
6, // [6:12] is the sub-list for method output_type
0, // [0:6] is the sub-list for method input_type
0, // [0:0] is the sub-list for extension type_name
0, // [0:0] is the sub-list for extension extendee
0, // [0:0] is the sub-list for field type_name
16, // 0: daemon.StatusResponse.fullStatus:type_name -> daemon.FullStatus
17, // 1: daemon.PeerState.connStatusUpdate:type_name -> google.protobuf.Timestamp
15, // 2: daemon.FullStatus.managementState:type_name -> daemon.ManagementState
14, // 3: daemon.FullStatus.signalState:type_name -> daemon.SignalState
13, // 4: daemon.FullStatus.localPeerState:type_name -> daemon.LocalPeerState
12, // 5: daemon.FullStatus.peers:type_name -> daemon.PeerState
0, // 6: daemon.DaemonService.Login:input_type -> daemon.LoginRequest
2, // 7: daemon.DaemonService.WaitSSOLogin:input_type -> daemon.WaitSSOLoginRequest
4, // 8: daemon.DaemonService.Up:input_type -> daemon.UpRequest
6, // 9: daemon.DaemonService.Status:input_type -> daemon.StatusRequest
8, // 10: daemon.DaemonService.Down:input_type -> daemon.DownRequest
10, // 11: daemon.DaemonService.GetConfig:input_type -> daemon.GetConfigRequest
1, // 12: daemon.DaemonService.Login:output_type -> daemon.LoginResponse
3, // 13: daemon.DaemonService.WaitSSOLogin:output_type -> daemon.WaitSSOLoginResponse
5, // 14: daemon.DaemonService.Up:output_type -> daemon.UpResponse
7, // 15: daemon.DaemonService.Status:output_type -> daemon.StatusResponse
9, // 16: daemon.DaemonService.Down:output_type -> daemon.DownResponse
11, // 17: daemon.DaemonService.GetConfig:output_type -> daemon.GetConfigResponse
12, // [12:18] is the sub-list for method output_type
6, // [6:12] is the sub-list for method input_type
6, // [6:6] is the sub-list for extension type_name
6, // [6:6] is the sub-list for extension extendee
0, // [0:6] is the sub-list for field type_name
}
func init() { file_daemon_proto_init() }
@@ -888,6 +1358,66 @@ func file_daemon_proto_init() {
return nil
}
}
file_daemon_proto_msgTypes[12].Exporter = func(v interface{}, i int) interface{} {
switch v := v.(*PeerState); i {
case 0:
return &v.state
case 1:
return &v.sizeCache
case 2:
return &v.unknownFields
default:
return nil
}
}
file_daemon_proto_msgTypes[13].Exporter = func(v interface{}, i int) interface{} {
switch v := v.(*LocalPeerState); i {
case 0:
return &v.state
case 1:
return &v.sizeCache
case 2:
return &v.unknownFields
default:
return nil
}
}
file_daemon_proto_msgTypes[14].Exporter = func(v interface{}, i int) interface{} {
switch v := v.(*SignalState); i {
case 0:
return &v.state
case 1:
return &v.sizeCache
case 2:
return &v.unknownFields
default:
return nil
}
}
file_daemon_proto_msgTypes[15].Exporter = func(v interface{}, i int) interface{} {
switch v := v.(*ManagementState); i {
case 0:
return &v.state
case 1:
return &v.sizeCache
case 2:
return &v.unknownFields
default:
return nil
}
}
file_daemon_proto_msgTypes[16].Exporter = func(v interface{}, i int) interface{} {
switch v := v.(*FullStatus); i {
case 0:
return &v.state
case 1:
return &v.sizeCache
case 2:
return &v.unknownFields
default:
return nil
}
}
}
type x struct{}
out := protoimpl.TypeBuilder{
@@ -895,7 +1425,7 @@ func file_daemon_proto_init() {
GoPackagePath: reflect.TypeOf(x{}).PkgPath(),
RawDescriptor: file_daemon_proto_rawDesc,
NumEnums: 0,
NumMessages: 12,
NumMessages: 17,
NumExtensions: 0,
NumServices: 1,
},

View File

@@ -1,6 +1,7 @@
syntax = "proto3";
import "google/protobuf/descriptor.proto";
import "google/protobuf/timestamp.proto";
option go_package = "/proto";
@@ -59,11 +60,16 @@ message UpRequest {}
message UpResponse {}
message StatusRequest{}
message StatusRequest{
bool getFullPeerStatus = 1;
}
message StatusResponse{
// status of the server.
string status = 1;
FullStatus fullStatus = 2;
// NetBird daemon version
string daemonVersion = 3;
}
message DownRequest {}
@@ -88,3 +94,43 @@ message GetConfigResponse {
// adminURL settings value.
string adminURL = 5;
}
// PeerState contains the latest state of a peer
message PeerState {
string IP = 1;
string pubKey = 2;
string connStatus = 3;
google.protobuf.Timestamp connStatusUpdate = 4;
bool relayed = 5;
bool direct = 6;
string localIceCandidateType = 7;
string remoteIceCandidateType =8;
string fqdn = 9;
}
// LocalPeerState contains the latest state of the local peer
message LocalPeerState {
string IP = 1;
string pubKey = 2;
bool kernelInterface =3;
string fqdn = 4;
}
// SignalState contains the latest state of a signal connection
message SignalState {
string URL = 1;
bool connected = 2;
}
// ManagementState contains the latest state of a management connection
message ManagementState {
string URL = 1;
bool connected = 2;
}
// FullStatus contains the full state held by the Status instance
message FullStatus {
ManagementState managementState = 1;
SignalState signalState = 2;
LocalPeerState localPeerState = 3;
repeated PeerState peers = 4;
}

View File

@@ -1,4 +1,17 @@
#!/bin/bash
set -e
if ! which realpath > /dev/null 2>&1
then
echo realpath is not installed
echo run: brew install coreutils
exit 1
fi
old_pwd=$(pwd)
script_path=$(dirname $(realpath "$0"))
cd "$script_path"
go install google.golang.org/protobuf/cmd/protoc-gen-go@v1.26
go install google.golang.org/grpc/cmd/protoc-gen-go-grpc@v1.1
protoc -I proto/ proto/daemon.proto --go_out=. --go-grpc_out=.
protoc -I ./ ./daemon.proto --go_out=../ --go-grpc_out=../
cd "$old_pwd"

View File

@@ -3,6 +3,9 @@ package server
import (
"context"
"fmt"
nbStatus "github.com/netbirdio/netbird/client/status"
"github.com/netbirdio/netbird/client/system"
"google.golang.org/protobuf/types/known/timestamppb"
"sync"
"time"
@@ -31,6 +34,8 @@ type Server struct {
mutex sync.Mutex
config *internal.Config
proto.UnimplementedDaemonServiceServer
statusRecorder *nbStatus.Status
}
type oauthAuthFlow struct {
@@ -52,6 +57,8 @@ func New(ctx context.Context, managementURL, adminURL, configPath, logFile strin
}
func (s *Server) Start() error {
s.mutex.Lock()
defer s.mutex.Unlock()
state := internal.CtxGetState(s.rootCtx)
// if current state contains any error, return it
@@ -86,11 +93,16 @@ func (s *Server) Start() error {
}
// if configuration exists, we just start connections.
config, _ = internal.UpdateOldManagementPort(ctx, config, s.configPath)
s.config = config
if s.statusRecorder == nil {
s.statusRecorder = nbStatus.NewRecorder()
}
go func() {
if err := internal.RunClient(ctx, config); err != nil {
if err := internal.RunClient(ctx, config, s.statusRecorder); err != nil {
log.Errorf("init connections: %v", err)
}
}()
@@ -158,6 +170,12 @@ func (s *Server) Login(callerCtx context.Context, msg *proto.LoginRequest) (*pro
return nil, err
}
if msg.ManagementUrl == "" {
config, _ = internal.UpdateOldManagementPort(ctx, config, s.configPath)
s.config = config
s.managementURL = config.ManagementURL.String()
}
s.mutex.Lock()
s.config = config
s.mutex.Unlock()
@@ -190,7 +208,8 @@ func (s *Server) Login(callerCtx context.Context, msg *proto.LoginRequest) (*pro
hostedClient := internal.NewHostedDeviceFlow(
providerConfig.ProviderConfig.Audience,
providerConfig.ProviderConfig.ClientID,
providerConfig.ProviderConfig.Domain,
providerConfig.ProviderConfig.TokenEndpoint,
providerConfig.ProviderConfig.DeviceAuthEndpoint,
)
if s.oauthAuthFlow.client != nil && s.oauthAuthFlow.client.GetClientID(ctx) == hostedClient.GetClientID(context.TODO()) {
@@ -303,6 +322,10 @@ func (s *Server) WaitSSOLogin(callerCtx context.Context, msg *proto.WaitSSOLogin
return nil, err
}
s.mutex.Lock()
s.oauthAuthFlow.expiresAt = time.Now()
s.mutex.Unlock()
if loginStatus, err := s.loginAttempt(ctx, "", tokenInfo.AccessToken); err != nil {
state.Set(loginStatus)
return nil, err
@@ -312,7 +335,7 @@ func (s *Server) WaitSSOLogin(callerCtx context.Context, msg *proto.WaitSSOLogin
}
// Up starts engine work in the daemon.
func (s *Server) Up(callerCtx context.Context, msg *proto.UpRequest) (*proto.UpResponse, error) {
func (s *Server) Up(callerCtx context.Context, _ *proto.UpRequest) (*proto.UpResponse, error) {
s.mutex.Lock()
defer s.mutex.Unlock()
@@ -346,9 +369,13 @@ func (s *Server) Up(callerCtx context.Context, msg *proto.UpRequest) (*proto.UpR
return nil, fmt.Errorf("config is not defined, please call login command first")
}
if s.statusRecorder == nil {
s.statusRecorder = nbStatus.NewRecorder()
}
go func() {
if err := internal.RunClient(ctx, s.config); err != nil {
log.Errorf("run client connection: %v", state.Wrap(err))
if err := internal.RunClient(ctx, s.config, s.statusRecorder); err != nil {
log.Errorf("run client connection: %v", err)
return
}
}()
@@ -357,7 +384,7 @@ func (s *Server) Up(callerCtx context.Context, msg *proto.UpRequest) (*proto.UpR
}
// Down engine work in the daemon.
func (s *Server) Down(ctx context.Context, msg *proto.DownRequest) (*proto.DownResponse, error) {
func (s *Server) Down(_ context.Context, _ *proto.DownRequest) (*proto.DownResponse, error) {
s.mutex.Lock()
defer s.mutex.Unlock()
@@ -365,13 +392,15 @@ func (s *Server) Down(ctx context.Context, msg *proto.DownRequest) (*proto.DownR
return nil, fmt.Errorf("service is not up")
}
s.actCancel()
state := internal.CtxGetState(s.rootCtx)
state.Set(internal.StatusIdle)
return &proto.DownResponse{}, nil
}
// Status starts engine work in the daemon.
func (s *Server) Status(
ctx context.Context,
_ context.Context,
msg *proto.StatusRequest,
) (*proto.StatusResponse, error) {
s.mutex.Lock()
@@ -382,11 +411,23 @@ func (s *Server) Status(
return nil, err
}
return &proto.StatusResponse{Status: string(status)}, nil
statusResponse := proto.StatusResponse{Status: string(status), DaemonVersion: system.NetbirdVersion()}
if s.statusRecorder == nil {
s.statusRecorder = nbStatus.NewRecorder()
}
if msg.GetFullPeerStatus {
fullStatus := s.statusRecorder.GetFullStatus()
pbFullStatus := toProtoFullStatus(fullStatus)
statusResponse.FullStatus = pbFullStatus
}
return &statusResponse, nil
}
// GetConfig of the daemon.
func (s *Server) GetConfig(ctx context.Context, msg *proto.GetConfigRequest) (*proto.GetConfigResponse, error) {
func (s *Server) GetConfig(_ context.Context, _ *proto.GetConfigRequest) (*proto.GetConfigResponse, error) {
s.mutex.Lock()
defer s.mutex.Unlock()
@@ -418,3 +459,39 @@ func (s *Server) GetConfig(ctx context.Context, msg *proto.GetConfigRequest) (*p
PreSharedKey: preSharedKey,
}, nil
}
func toProtoFullStatus(fullStatus nbStatus.FullStatus) *proto.FullStatus {
pbFullStatus := proto.FullStatus{
ManagementState: &proto.ManagementState{},
SignalState: &proto.SignalState{},
LocalPeerState: &proto.LocalPeerState{},
Peers: []*proto.PeerState{},
}
pbFullStatus.ManagementState.URL = fullStatus.ManagementState.URL
pbFullStatus.ManagementState.Connected = fullStatus.ManagementState.Connected
pbFullStatus.SignalState.URL = fullStatus.SignalState.URL
pbFullStatus.SignalState.Connected = fullStatus.SignalState.Connected
pbFullStatus.LocalPeerState.IP = fullStatus.LocalPeerState.IP
pbFullStatus.LocalPeerState.PubKey = fullStatus.LocalPeerState.PubKey
pbFullStatus.LocalPeerState.KernelInterface = fullStatus.LocalPeerState.KernelInterface
pbFullStatus.LocalPeerState.Fqdn = fullStatus.LocalPeerState.FQDN
for _, peerState := range fullStatus.Peers {
pbPeerState := &proto.PeerState{
IP: peerState.IP,
PubKey: peerState.PubKey,
ConnStatus: peerState.ConnStatus,
ConnStatusUpdate: timestamppb.New(peerState.ConnStatusUpdate),
Relayed: peerState.Relayed,
Direct: peerState.Direct,
LocalIceCandidateType: peerState.LocalIceCandidateType,
RemoteIceCandidateType: peerState.RemoteIceCandidateType,
Fqdn: peerState.FQDN,
}
pbFullStatus.Peers = append(pbFullStatus.Peers, pbPeerState)
}
return &pbFullStatus
}

116
client/ssh/client.go Normal file
View File

@@ -0,0 +1,116 @@
package ssh
import (
"fmt"
"golang.org/x/crypto/ssh"
"golang.org/x/term"
"net"
"os"
"time"
)
// Client wraps crypto/ssh Client to simplify usage
type Client struct {
client *ssh.Client
}
// Close closes the wrapped SSH Client
func (c *Client) Close() error {
return c.client.Close()
}
// OpenTerminal starts an interactive terminal session with the remote SSH server
func (c *Client) OpenTerminal() error {
session, err := c.client.NewSession()
if err != nil {
return fmt.Errorf("failed to open new session: %v", err)
}
defer func() {
err := session.Close()
if err != nil {
return
}
}()
fd := int(os.Stdout.Fd())
state, err := term.MakeRaw(fd)
if err != nil {
return fmt.Errorf("failed to run raw terminal: %s", err)
}
defer func() {
err := term.Restore(fd, state)
if err != nil {
return
}
}()
w, h, err := term.GetSize(fd)
if err != nil {
return fmt.Errorf("terminal get size: %s", err)
}
modes := ssh.TerminalModes{
ssh.ECHO: 1,
ssh.TTY_OP_ISPEED: 14400,
ssh.TTY_OP_OSPEED: 14400,
}
terminal := os.Getenv("TERM")
if terminal == "" {
terminal = "xterm-256color"
}
if err := session.RequestPty(terminal, h, w, modes); err != nil {
return fmt.Errorf("failed requesting pty session with xterm: %s", err)
}
session.Stdout = os.Stdout
session.Stderr = os.Stderr
session.Stdin = os.Stdin
if err := session.Shell(); err != nil {
return fmt.Errorf("failed to start login shell on the remote host: %s", err)
}
if err := session.Wait(); err != nil {
if e, ok := err.(*ssh.ExitError); ok {
switch e.ExitStatus() {
case 130:
return nil
}
}
return fmt.Errorf("failed running SSH session: %s", err)
}
return nil
}
// DialWithKey connects to the remote SSH server with a provided private key file (PEM).
func DialWithKey(addr, user string, privateKey []byte) (*Client, error) {
signer, err := ssh.ParsePrivateKey(privateKey)
if err != nil {
return nil, err
}
config := &ssh.ClientConfig{
User: user,
Timeout: 5 * time.Second,
Auth: []ssh.AuthMethod{
ssh.PublicKeys(signer),
},
HostKeyCallback: ssh.HostKeyCallback(func(hostname string, remote net.Addr, key ssh.PublicKey) error { return nil }),
}
return Dial("tcp", addr, config)
}
// Dial connects to the remote SSH server.
func Dial(network, addr string, config *ssh.ClientConfig) (*Client, error) {
client, err := ssh.Dial(network, addr, config)
if err != nil {
return nil, err
}
return &Client{
client: client,
}, nil
}

36
client/ssh/login.go Normal file
View File

@@ -0,0 +1,36 @@
package ssh
import (
"fmt"
"github.com/netbirdio/netbird/util"
"net"
"net/netip"
"os/exec"
"runtime"
)
func getLoginCmd(user string, remoteAddr net.Addr) (loginPath string, args []string, err error) {
loginPath, err = exec.LookPath("login")
if err != nil {
return "", nil, err
}
addrPort, err := netip.ParseAddrPort(remoteAddr.String())
if err != nil {
return "", nil, err
}
if runtime.GOOS == "linux" {
if util.FileExists("/etc/arch-release") && !util.FileExists("/etc/pam.d/remote") {
// detect if Arch Linux
return loginPath, []string{"-f", user, "-p"}, nil
}
return loginPath, []string{"-f", user, "-h", addrPort.Addr().String(), "-p"}, nil
} else if runtime.GOOS == "darwin" {
return loginPath, []string{"-fp", "-h", addrPort.Addr().String(), user}, nil
}
return "", nil, fmt.Errorf("unsupported platform")
}

10
client/ssh/lookup.go Normal file
View File

@@ -0,0 +1,10 @@
//go:build !darwin
// +build !darwin
package ssh
import "os/user"
func userNameLookup(username string) (*user.User, error) {
return user.Lookup(username)
}

View File

@@ -0,0 +1,47 @@
//go:build darwin
// +build darwin
package ssh
import (
"bytes"
"fmt"
"os/exec"
"os/user"
"strings"
)
func userNameLookup(username string) (*user.User, error) {
var userObject *user.User
userObject, err := user.Lookup(username)
if err != nil && err.Error() == user.UnknownUserError(username).Error() {
return idUserNameLookup(username)
} else if err != nil {
return nil, err
}
return userObject, nil
}
func idUserNameLookup(username string) (*user.User, error) {
cmd := exec.Command("id", "-P", username)
out, err := cmd.CombinedOutput()
if err != nil {
return nil, fmt.Errorf("error while retrieving user with id -P command, error: %v", err)
}
colon := ":"
if !bytes.Contains(out, []byte(username+colon)) {
return nil, fmt.Errorf("unable to find user in returned string")
}
// netbird:********:501:20::0:0:netbird:/Users/netbird:/bin/zsh
parts := strings.SplitN(string(out), colon, 10)
userObject := &user.User{
Username: parts[0],
Uid: parts[2],
Gid: parts[3],
Name: parts[7],
HomeDir: parts[8],
}
return userObject, nil
}

250
client/ssh/server.go Normal file
View File

@@ -0,0 +1,250 @@
package ssh
import (
"fmt"
"github.com/creack/pty"
"github.com/gliderlabs/ssh"
log "github.com/sirupsen/logrus"
"io"
"net"
"os"
"os/exec"
"os/user"
"runtime"
"strings"
"sync"
)
// DefaultSSHPort is the default SSH port of the NetBird's embedded SSH server
const DefaultSSHPort = 44338
// DefaultSSHServer is a function that creates DefaultServer
func DefaultSSHServer(hostKeyPEM []byte, addr string) (Server, error) {
return newDefaultServer(hostKeyPEM, addr)
}
// Server is an interface of SSH server
type Server interface {
// Stop stops SSH server.
Stop() error
// Start starts SSH server. Blocking
Start() error
// RemoveAuthorizedKey removes SSH key of a given peer from the authorized keys
RemoveAuthorizedKey(peer string)
// AddAuthorizedKey add a given peer key to server authorized keys
AddAuthorizedKey(peer, newKey string) error
}
// DefaultServer is the embedded NetBird SSH server
type DefaultServer struct {
listener net.Listener
// authorizedKeys is ssh pub key indexed by peer WireGuard public key
authorizedKeys map[string]ssh.PublicKey
mu sync.Mutex
hostKeyPEM []byte
sessions []ssh.Session
}
// newDefaultServer creates new server with provided host key
func newDefaultServer(hostKeyPEM []byte, addr string) (*DefaultServer, error) {
ln, err := net.Listen("tcp", addr)
if err != nil {
return nil, err
}
allowedKeys := make(map[string]ssh.PublicKey)
return &DefaultServer{listener: ln, mu: sync.Mutex{}, hostKeyPEM: hostKeyPEM, authorizedKeys: allowedKeys, sessions: make([]ssh.Session, 0)}, nil
}
// RemoveAuthorizedKey removes SSH key of a given peer from the authorized keys
func (srv *DefaultServer) RemoveAuthorizedKey(peer string) {
srv.mu.Lock()
defer srv.mu.Unlock()
delete(srv.authorizedKeys, peer)
}
// AddAuthorizedKey add a given peer key to server authorized keys
func (srv *DefaultServer) AddAuthorizedKey(peer, newKey string) error {
srv.mu.Lock()
defer srv.mu.Unlock()
parsedKey, _, _, _, err := ssh.ParseAuthorizedKey([]byte(newKey))
if err != nil {
return err
}
srv.authorizedKeys[peer] = parsedKey
return nil
}
// Stop stops SSH server.
func (srv *DefaultServer) Stop() error {
srv.mu.Lock()
defer srv.mu.Unlock()
err := srv.listener.Close()
if err != nil {
return err
}
for _, session := range srv.sessions {
err := session.Close()
if err != nil {
log.Warnf("failed closing SSH session from %v", err)
}
}
return nil
}
func (srv *DefaultServer) publicKeyHandler(ctx ssh.Context, key ssh.PublicKey) bool {
srv.mu.Lock()
defer srv.mu.Unlock()
for _, allowed := range srv.authorizedKeys {
if ssh.KeysEqual(allowed, key) {
return true
}
}
return false
}
func prepareUserEnv(user *user.User, shell string) []string {
return []string{
fmt.Sprintf("SHELL=" + shell),
fmt.Sprintf("USER=" + user.Username),
fmt.Sprintf("HOME=" + user.HomeDir),
}
}
func acceptEnv(s string) bool {
split := strings.Split(s, "=")
if len(split) != 2 {
return false
}
return split[0] == "TERM" || split[0] == "LANG" || strings.HasPrefix(split[0], "LC_")
}
// sessionHandler handles SSH session post auth
func (srv *DefaultServer) sessionHandler(session ssh.Session) {
srv.mu.Lock()
srv.sessions = append(srv.sessions, session)
srv.mu.Unlock()
defer func() {
err := session.Close()
if err != nil {
return
}
}()
localUser, err := userNameLookup(session.User())
if err != nil {
_, err = fmt.Fprintf(session, "remote SSH server couldn't find local user %s\n", session.User()) //nolint
err = session.Exit(1)
if err != nil {
return
}
log.Warnf("failed SSH session from %v, user %s", session.RemoteAddr(), session.User())
return
}
ptyReq, winCh, isPty := session.Pty()
if isPty {
loginCmd, loginArgs, err := getLoginCmd(localUser.Username, session.RemoteAddr())
if err != nil {
log.Warnf("failed logging-in user %s from remote IP %s", localUser.Username, session.RemoteAddr().String())
return
}
cmd := exec.Command(loginCmd, loginArgs...)
go func() {
<-session.Context().Done()
err := cmd.Process.Kill()
if err != nil {
return
}
}()
cmd.Dir = localUser.HomeDir
cmd.Env = append(cmd.Env, fmt.Sprintf("TERM=%s", ptyReq.Term))
cmd.Env = append(cmd.Env, prepareUserEnv(localUser, getUserShell(localUser.Uid))...)
for _, v := range session.Environ() {
if acceptEnv(v) {
cmd.Env = append(cmd.Env, v)
}
}
file, err := pty.Start(cmd)
if err != nil {
log.Errorf("failed starting SSH server %v", err)
}
go func() {
for win := range winCh {
setWinSize(file, win.Width, win.Height)
}
}()
srv.stdInOut(file, session)
err = cmd.Wait()
if err != nil {
return
}
} else {
_, err := io.WriteString(session, "only PTY is supported.\n")
if err != nil {
return
}
err = session.Exit(1)
if err != nil {
return
}
}
}
func (srv *DefaultServer) stdInOut(file *os.File, session ssh.Session) {
go func() {
// stdin
_, err := io.Copy(file, session)
if err != nil {
return
}
}()
go func() {
// stdout
_, err := io.Copy(session, file)
if err != nil {
return
}
}()
}
// Start starts SSH server. Blocking
func (srv *DefaultServer) Start() error {
log.Infof("starting SSH server on addr: %s", srv.listener.Addr().String())
publicKeyOption := ssh.PublicKeyAuth(srv.publicKeyHandler)
hostKeyPEM := ssh.HostKeyPEM(srv.hostKeyPEM)
err := ssh.Serve(srv.listener, srv.sessionHandler, publicKeyOption, hostKeyPEM)
if err != nil {
return err
}
return nil
}
func getUserShell(userID string) string {
if runtime.GOOS == "linux" {
output, _ := exec.Command("getent", "passwd", userID).Output()
line := strings.SplitN(string(output), ":", 10)
if len(line) > 6 {
return strings.TrimSpace(line[6])
}
}
shell := os.Getenv("SHELL")
if shell == "" {
shell = "/bin/sh"
}
return shell
}

44
client/ssh/server_mock.go Normal file
View File

@@ -0,0 +1,44 @@
package ssh
import "context"
// MockServer mocks ssh.Server
type MockServer struct {
Ctx context.Context
StopFunc func() error
StartFunc func() error
AddAuthorizedKeyFunc func(peer, newKey string) error
RemoveAuthorizedKeyFunc func(peer string)
}
// RemoveAuthorizedKey removes SSH key of a given peer from the authorized keys
func (srv *MockServer) RemoveAuthorizedKey(peer string) {
if srv.RemoveAuthorizedKeyFunc == nil {
return
}
srv.RemoveAuthorizedKeyFunc(peer)
}
// AddAuthorizedKey add a given peer key to server authorized keys
func (srv *MockServer) AddAuthorizedKey(peer, newKey string) error {
if srv.AddAuthorizedKeyFunc == nil {
return nil
}
return srv.AddAuthorizedKeyFunc(peer, newKey)
}
// Stop stops SSH server.
func (srv *MockServer) Stop() error {
if srv.StopFunc == nil {
return nil
}
return srv.StopFunc()
}
// Start starts SSH server. Blocking
func (srv *MockServer) Start() error {
if srv.StartFunc == nil {
return nil
}
return srv.StartFunc()
}

121
client/ssh/server_test.go Normal file
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@@ -0,0 +1,121 @@
package ssh
import (
"fmt"
"github.com/stretchr/testify/assert"
"golang.org/x/crypto/ssh"
"strings"
"testing"
)
func TestServer_AddAuthorizedKey(t *testing.T) {
key, err := GeneratePrivateKey(ED25519)
if err != nil {
t.Fatal(err)
}
server, err := newDefaultServer(key, "localhost:")
if err != nil {
t.Fatal(err)
}
// add multiple keys
keys := map[string][]byte{}
for i := 0; i < 10; i++ {
peer := fmt.Sprintf("%s-%d", "remotePeer", i)
remotePrivKey, err := GeneratePrivateKey(ED25519)
if err != nil {
t.Fatal(err)
}
remotePubKey, err := GeneratePublicKey(remotePrivKey)
if err != nil {
t.Fatal(err)
}
err = server.AddAuthorizedKey(peer, string(remotePubKey))
if err != nil {
t.Error(err)
}
keys[peer] = remotePubKey
}
// make sure that all keys have been added
for peer, remotePubKey := range keys {
k, ok := server.authorizedKeys[peer]
assert.True(t, ok, "expecting remotePeer key to be found in authorizedKeys")
assert.Equal(t, string(remotePubKey), strings.TrimSpace(string(ssh.MarshalAuthorizedKey(k))))
}
}
func TestServer_RemoveAuthorizedKey(t *testing.T) {
key, err := GeneratePrivateKey(ED25519)
if err != nil {
t.Fatal(err)
}
server, err := newDefaultServer(key, "localhost:")
if err != nil {
t.Fatal(err)
}
remotePrivKey, err := GeneratePrivateKey(ED25519)
if err != nil {
t.Fatal(err)
}
remotePubKey, err := GeneratePublicKey(remotePrivKey)
if err != nil {
t.Fatal(err)
}
err = server.AddAuthorizedKey("remotePeer", string(remotePubKey))
if err != nil {
t.Error(err)
}
server.RemoveAuthorizedKey("remotePeer")
_, ok := server.authorizedKeys["remotePeer"]
assert.False(t, ok, "expecting remotePeer's SSH key to be removed")
}
func TestServer_PubKeyHandler(t *testing.T) {
key, err := GeneratePrivateKey(ED25519)
if err != nil {
t.Fatal(err)
}
server, err := newDefaultServer(key, "localhost:")
if err != nil {
t.Fatal(err)
}
var keys []ssh.PublicKey
for i := 0; i < 10; i++ {
peer := fmt.Sprintf("%s-%d", "remotePeer", i)
remotePrivKey, err := GeneratePrivateKey(ED25519)
if err != nil {
t.Fatal(err)
}
remotePubKey, err := GeneratePublicKey(remotePrivKey)
if err != nil {
t.Fatal(err)
}
remoteParsedPubKey, _, _, _, err := ssh.ParseAuthorizedKey(remotePubKey)
if err != nil {
t.Fatal(err)
}
err = server.AddAuthorizedKey(peer, string(remotePubKey))
if err != nil {
t.Error(err)
}
keys = append(keys, remoteParsedPubKey)
}
for _, key := range keys {
accepted := server.publicKeyHandler(nil, key)
assert.Truef(t, accepted, "expecting SSH connection to be accepted for a given SSH key %s", string(ssh.MarshalAuthorizedKey(key)))
}
}

86
client/ssh/util.go Normal file
View File

@@ -0,0 +1,86 @@
package ssh
import (
"crypto"
"crypto/ecdsa"
"crypto/elliptic"
"crypto/rand"
"crypto/rsa"
"crypto/x509"
"encoding/pem"
"fmt"
"golang.org/x/crypto/ed25519"
gossh "golang.org/x/crypto/ssh"
"strings"
)
// KeyType is a type of SSH key
type KeyType string
// ED25519 is key of type ed25519
const ED25519 KeyType = "ed25519"
// ECDSA is key of type ecdsa
const ECDSA KeyType = "ecdsa"
// RSA is key of type rsa
const RSA KeyType = "rsa"
// RSAKeySize is a size of newly generated RSA key
const RSAKeySize = 2048
// GeneratePrivateKey creates RSA Private Key of specified byte size
func GeneratePrivateKey(keyType KeyType) ([]byte, error) {
var key crypto.Signer
var err error
switch keyType {
case ED25519:
_, key, err = ed25519.GenerateKey(rand.Reader)
case ECDSA:
key, err = ecdsa.GenerateKey(elliptic.P256(), rand.Reader)
case RSA:
key, err = rsa.GenerateKey(rand.Reader, RSAKeySize)
default:
return nil, fmt.Errorf("unsupported ket type %s", keyType)
}
if err != nil {
return nil, err
}
pemBytes, err := EncodePrivateKeyToPEM(key)
if err != nil {
return nil, err
}
return pemBytes, nil
}
// GeneratePublicKey returns the public part of the private key
func GeneratePublicKey(key []byte) ([]byte, error) {
signer, err := gossh.ParsePrivateKey(key)
if err != nil {
return nil, err
}
strKey := strings.TrimSpace(string(gossh.MarshalAuthorizedKey(signer.PublicKey())))
return []byte(strKey), nil
}
// EncodePrivateKeyToPEM encodes Private Key from RSA to PEM format
func EncodePrivateKeyToPEM(privateKey crypto.Signer) ([]byte, error) {
mk, err := x509.MarshalPKCS8PrivateKey(privateKey)
if err != nil {
return nil, err
}
// pem.Block
privBlock := pem.Block{
Type: "PRIVATE KEY",
Bytes: mk,
}
// Private key in PEM format
privatePEM := pem.EncodeToMemory(&privBlock)
return privatePEM, nil
}

14
client/ssh/window_unix.go Normal file
View File

@@ -0,0 +1,14 @@
//go:build linux || darwin
package ssh
import (
"os"
"syscall"
"unsafe"
)
func setWinSize(file *os.File, width, height int) {
syscall.Syscall(syscall.SYS_IOCTL, file.Fd(), uintptr(syscall.TIOCSWINSZ), //nolint
uintptr(unsafe.Pointer(&struct{ h, w, x, y uint16 }{uint16(height), uint16(width), 0, 0})))
}

View File

@@ -0,0 +1,9 @@
package ssh
import (
"os"
)
func setWinSize(file *os.File, width, height int) {
}

241
client/status/status.go Normal file
View File

@@ -0,0 +1,241 @@
package status
import (
"errors"
"sync"
"time"
)
// PeerState contains the latest state of a peer
type PeerState struct {
IP string
PubKey string
FQDN string
ConnStatus string
ConnStatusUpdate time.Time
Relayed bool
Direct bool
LocalIceCandidateType string
RemoteIceCandidateType string
}
// LocalPeerState contains the latest state of the local peer
type LocalPeerState struct {
IP string
PubKey string
KernelInterface bool
FQDN string
}
// SignalState contains the latest state of a signal connection
type SignalState struct {
URL string
Connected bool
}
// ManagementState contains the latest state of a management connection
type ManagementState struct {
URL string
Connected bool
}
// FullStatus contains the full state held by the Status instance
type FullStatus struct {
Peers []PeerState
ManagementState ManagementState
SignalState SignalState
LocalPeerState LocalPeerState
}
// Status holds a state of peers, signal and management connections
type Status struct {
mux sync.Mutex
peers map[string]PeerState
changeNotify map[string]chan struct{}
signal SignalState
management ManagementState
localPeer LocalPeerState
}
// NewRecorder returns a new Status instance
func NewRecorder() *Status {
return &Status{
peers: make(map[string]PeerState),
changeNotify: make(map[string]chan struct{}),
}
}
// AddPeer adds peer to Daemon status map
func (d *Status) AddPeer(peerPubKey string) error {
d.mux.Lock()
defer d.mux.Unlock()
_, ok := d.peers[peerPubKey]
if ok {
return errors.New("peer already exist")
}
d.peers[peerPubKey] = PeerState{PubKey: peerPubKey}
return nil
}
// GetPeer adds peer to Daemon status map
func (d *Status) GetPeer(peerPubKey string) (PeerState, error) {
d.mux.Lock()
defer d.mux.Unlock()
state, ok := d.peers[peerPubKey]
if !ok {
return PeerState{}, errors.New("peer not found")
}
return state, nil
}
// RemovePeer removes peer from Daemon status map
func (d *Status) RemovePeer(peerPubKey string) error {
d.mux.Lock()
defer d.mux.Unlock()
_, ok := d.peers[peerPubKey]
if ok {
delete(d.peers, peerPubKey)
return nil
}
return errors.New("no peer with to remove")
}
// UpdatePeerState updates peer status
func (d *Status) UpdatePeerState(receivedState PeerState) error {
d.mux.Lock()
defer d.mux.Unlock()
peerState, ok := d.peers[receivedState.PubKey]
if !ok {
return errors.New("peer doesn't exist")
}
if receivedState.IP != "" {
peerState.IP = receivedState.IP
}
if receivedState.ConnStatus != peerState.ConnStatus {
peerState.ConnStatus = receivedState.ConnStatus
peerState.ConnStatusUpdate = receivedState.ConnStatusUpdate
peerState.Direct = receivedState.Direct
peerState.Relayed = receivedState.Relayed
peerState.LocalIceCandidateType = receivedState.LocalIceCandidateType
peerState.RemoteIceCandidateType = receivedState.RemoteIceCandidateType
}
d.peers[receivedState.PubKey] = peerState
ch, found := d.changeNotify[receivedState.PubKey]
if found && ch != nil {
close(ch)
d.changeNotify[receivedState.PubKey] = nil
}
return nil
}
// UpdatePeerFQDN update peer's state fqdn only
func (d *Status) UpdatePeerFQDN(peerPubKey, fqdn string) error {
d.mux.Lock()
defer d.mux.Unlock()
peerState, ok := d.peers[peerPubKey]
if !ok {
return errors.New("peer doesn't exist")
}
peerState.FQDN = fqdn
d.peers[peerPubKey] = peerState
return nil
}
// GetPeerStateChangeNotifier returns a change notifier channel for a peer
func (d *Status) GetPeerStateChangeNotifier(peer string) <-chan struct{} {
d.mux.Lock()
defer d.mux.Unlock()
ch, found := d.changeNotify[peer]
if !found || ch == nil {
ch = make(chan struct{})
d.changeNotify[peer] = ch
}
return ch
}
// UpdateLocalPeerState updates local peer status
func (d *Status) UpdateLocalPeerState(localPeerState LocalPeerState) {
d.mux.Lock()
defer d.mux.Unlock()
d.localPeer = localPeerState
}
// CleanLocalPeerState cleans local peer status
func (d *Status) CleanLocalPeerState() {
d.mux.Lock()
defer d.mux.Unlock()
d.localPeer = LocalPeerState{}
}
// MarkManagementDisconnected sets ManagementState to disconnected
func (d *Status) MarkManagementDisconnected(managementURL string) {
d.mux.Lock()
defer d.mux.Unlock()
d.management = ManagementState{
URL: managementURL,
Connected: false,
}
}
// MarkManagementConnected sets ManagementState to connected
func (d *Status) MarkManagementConnected(managementURL string) {
d.mux.Lock()
defer d.mux.Unlock()
d.management = ManagementState{
URL: managementURL,
Connected: true,
}
}
// MarkSignalDisconnected sets SignalState to disconnected
func (d *Status) MarkSignalDisconnected(signalURL string) {
d.mux.Lock()
defer d.mux.Unlock()
d.signal = SignalState{
signalURL,
false,
}
}
// MarkSignalConnected sets SignalState to connected
func (d *Status) MarkSignalConnected(signalURL string) {
d.mux.Lock()
defer d.mux.Unlock()
d.signal = SignalState{
signalURL,
true,
}
}
// GetFullStatus gets full status
func (d *Status) GetFullStatus() FullStatus {
d.mux.Lock()
defer d.mux.Unlock()
fullStatus := FullStatus{
ManagementState: d.management,
SignalState: d.signal,
LocalPeerState: d.localPeer,
}
for _, status := range d.peers {
fullStatus.Peers = append(fullStatus.Peers, status)
}
return fullStatus
}

View File

@@ -0,0 +1,243 @@
package status
import (
"github.com/stretchr/testify/assert"
"testing"
)
func TestAddPeer(t *testing.T) {
key := "abc"
status := NewRecorder()
err := status.AddPeer(key)
assert.NoError(t, err, "shouldn't return error")
_, exists := status.peers[key]
assert.True(t, exists, "value was found")
err = status.AddPeer(key)
assert.Error(t, err, "should return error on duplicate")
}
func TestGetPeer(t *testing.T) {
key := "abc"
status := NewRecorder()
err := status.AddPeer(key)
assert.NoError(t, err, "shouldn't return error")
peerStatus, err := status.GetPeer(key)
assert.NoError(t, err, "shouldn't return error on getting peer")
assert.Equal(t, key, peerStatus.PubKey, "retrieved public key should match")
_, err = status.GetPeer("non_existing_key")
assert.Error(t, err, "should return error when peer doesn't exist")
}
func TestUpdatePeerState(t *testing.T) {
key := "abc"
ip := "10.10.10.10"
status := NewRecorder()
peerState := PeerState{
PubKey: key,
}
status.peers[key] = peerState
peerState.IP = ip
err := status.UpdatePeerState(peerState)
assert.NoError(t, err, "shouldn't return error")
state, exists := status.peers[key]
assert.True(t, exists, "state should be found")
assert.Equal(t, ip, state.IP, "ip should be equal")
}
func TestStatus_UpdatePeerFQDN(t *testing.T) {
key := "abc"
fqdn := "peer-a.netbird.local"
status := NewRecorder()
peerState := PeerState{
PubKey: key,
}
status.peers[key] = peerState
err := status.UpdatePeerFQDN(key, fqdn)
assert.NoError(t, err, "shouldn't return error")
state, exists := status.peers[key]
assert.True(t, exists, "state should be found")
assert.Equal(t, fqdn, state.FQDN, "fqdn should be equal")
}
func TestGetPeerStateChangeNotifierLogic(t *testing.T) {
key := "abc"
ip := "10.10.10.10"
status := NewRecorder()
peerState := PeerState{
PubKey: key,
}
status.peers[key] = peerState
ch := status.GetPeerStateChangeNotifier(key)
assert.NotNil(t, ch, "channel shouldn't be nil")
peerState.IP = ip
err := status.UpdatePeerState(peerState)
assert.NoError(t, err, "shouldn't return error")
select {
case <-ch:
default:
t.Errorf("channel wasn't closed after update")
}
}
func TestRemovePeer(t *testing.T) {
key := "abc"
status := NewRecorder()
peerState := PeerState{
PubKey: key,
}
status.peers[key] = peerState
err := status.RemovePeer(key)
assert.NoError(t, err, "shouldn't return error")
_, exists := status.peers[key]
assert.False(t, exists, "state value shouldn't be found")
err = status.RemovePeer("not existing")
assert.Error(t, err, "should return error when peer doesn't exist")
}
func TestUpdateLocalPeerState(t *testing.T) {
localPeerState := LocalPeerState{
IP: "10.10.10.10",
PubKey: "abc",
KernelInterface: false,
}
status := NewRecorder()
status.UpdateLocalPeerState(localPeerState)
assert.Equal(t, localPeerState, status.localPeer, "local peer status should be equal")
}
func TestCleanLocalPeerState(t *testing.T) {
emptyLocalPeerState := LocalPeerState{}
localPeerState := LocalPeerState{
IP: "10.10.10.10",
PubKey: "abc",
KernelInterface: false,
}
status := NewRecorder()
status.localPeer = localPeerState
status.CleanLocalPeerState()
assert.Equal(t, emptyLocalPeerState, status.localPeer, "local peer status should be empty")
}
func TestUpdateSignalState(t *testing.T) {
url := "https://signal"
var tests = []struct {
name string
connected bool
want SignalState
}{
{"should mark as connected", true, SignalState{
URL: url,
Connected: true,
}},
{"should mark as disconnected", false, SignalState{
URL: url,
Connected: false,
}},
}
status := NewRecorder()
for _, test := range tests {
t.Run(test.name, func(t *testing.T) {
if test.connected {
status.MarkSignalConnected(url)
} else {
status.MarkSignalDisconnected(url)
}
assert.Equal(t, test.want, status.signal, "signal status should be equal")
})
}
}
func TestUpdateManagementState(t *testing.T) {
url := "https://management"
var tests = []struct {
name string
connected bool
want ManagementState
}{
{"should mark as connected", true, ManagementState{
URL: url,
Connected: true,
}},
{"should mark as disconnected", false, ManagementState{
URL: url,
Connected: false,
}},
}
status := NewRecorder()
for _, test := range tests {
t.Run(test.name, func(t *testing.T) {
if test.connected {
status.MarkManagementConnected(url)
} else {
status.MarkManagementDisconnected(url)
}
assert.Equal(t, test.want, status.management, "signal status should be equal")
})
}
}
func TestGetFullStatus(t *testing.T) {
key1 := "abc"
key2 := "def"
managementState := ManagementState{
URL: "https://signal",
Connected: true,
}
signalState := SignalState{
URL: "https://signal",
Connected: true,
}
peerState1 := PeerState{
PubKey: key1,
}
peerState2 := PeerState{
PubKey: key2,
}
status := NewRecorder()
status.management = managementState
status.signal = signalState
status.peers[key1] = peerState1
status.peers[key2] = peerState2
fullStatus := status.GetFullStatus()
assert.Equal(t, managementState, fullStatus.ManagementState, "management status should be equal")
assert.Equal(t, signalState, fullStatus.SignalState, "signal status should be equal")
assert.ElementsMatch(t, []PeerState{peerState1, peerState2}, fullStatus.Peers, "peers states should match")
}

View File

@@ -4,41 +4,25 @@ import (
"bytes"
"context"
"fmt"
"golang.org/x/sys/unix"
"os"
"os/exec"
"runtime"
"strings"
"time"
)
// GetInfo retrieves and parses the system information
func GetInfo(ctx context.Context) *Info {
out := _getInfo()
for strings.Contains(out, "broken pipe") {
out = _getInfo()
time.Sleep(500 * time.Millisecond)
utsname := unix.Utsname{}
err := unix.Uname(&utsname)
if err != nil {
fmt.Println("getInfo:", err)
}
osStr := strings.Replace(out, "\n", "", -1)
osStr = strings.Replace(osStr, "\r\n", "", -1)
osInfo := strings.Split(osStr, " ")
gio := &Info{Kernel: osInfo[0], OSVersion: osInfo[1], Core: osInfo[1], Platform: osInfo[2], OS: osInfo[0], GoOS: runtime.GOOS, CPUs: runtime.NumCPU()}
sysName := string(bytes.Split(utsname.Sysname[:], []byte{0})[0])
machine := string(bytes.Split(utsname.Machine[:], []byte{0})[0])
release := string(bytes.Split(utsname.Release[:], []byte{0})[0])
gio := &Info{Kernel: sysName, OSVersion: release, Core: release, Platform: machine, OS: sysName, GoOS: runtime.GOOS, CPUs: runtime.NumCPU()}
gio.Hostname, _ = os.Hostname()
gio.WiretrusteeVersion = NetbirdVersion()
gio.UIVersion = extractUserAgent(ctx)
return gio
}
func _getInfo() string {
cmd := exec.Command("uname", "-srm")
cmd.Stdin = strings.NewReader("some input")
var out bytes.Buffer
var stderr bytes.Buffer
cmd.Stdout = &out
cmd.Stderr = &stderr
err := cmd.Run()
if err != nil {
fmt.Println("getInfo:", err)
}
return out.String()
}

View File

@@ -1,36 +1,17 @@
package system
import (
"bytes"
"context"
"fmt"
log "github.com/sirupsen/logrus"
"golang.org/x/sys/windows/registry"
"os"
"os/exec"
"runtime"
"strings"
)
// GetInfo retrieves and parses the system information
func GetInfo(ctx context.Context) *Info {
cmd := exec.Command("cmd", "ver")
cmd.Stdin = strings.NewReader("some")
var out bytes.Buffer
var stderr bytes.Buffer
cmd.Stdout = &out
cmd.Stderr = &stderr
err := cmd.Run()
if err != nil {
panic(err)
}
osStr := strings.Replace(out.String(), "\n", "", -1)
osStr = strings.Replace(osStr, "\r\n", "", -1)
tmp1 := strings.Index(osStr, "[Version")
tmp2 := strings.Index(osStr, "]")
var ver string
if tmp1 == -1 || tmp2 == -1 {
ver = "unknown"
} else {
ver = osStr[tmp1+9 : tmp2]
}
ver := getOSVersion()
gio := &Info{Kernel: "windows", OSVersion: ver, Core: ver, Platform: "unknown", OS: "windows", GoOS: runtime.GOOS, CPUs: runtime.NumCPU()}
gio.Hostname, _ = os.Hostname()
gio.WiretrusteeVersion = NetbirdVersion()
@@ -38,3 +19,37 @@ func GetInfo(ctx context.Context) *Info {
return gio
}
func getOSVersion() string {
k, err := registry.OpenKey(registry.LOCAL_MACHINE, `SOFTWARE\Microsoft\Windows NT\CurrentVersion`, registry.QUERY_VALUE)
if err != nil {
log.Error(err)
return "0.0.0.0"
}
defer func() {
deferErr := k.Close()
if deferErr != nil {
log.Error(deferErr)
}
}()
major, _, err := k.GetIntegerValue("CurrentMajorVersionNumber")
if err != nil {
log.Error(err)
}
minor, _, err := k.GetIntegerValue("CurrentMinorVersionNumber")
if err != nil {
log.Error(err)
}
build, _, err := k.GetStringValue("CurrentBuildNumber")
if err != nil {
log.Error(err)
}
// Update Build Revision
ubr, _, err := k.GetIntegerValue("UBR")
if err != nil {
log.Error(err)
}
ver := fmt.Sprintf("%d.%d.%s.%d", major, minor, build, ubr)
return ver
}

View File

@@ -1,11 +1,13 @@
//go:build !(linux && 386)
// +build !linux !386
// skipping linux 32 bits build and tests
package main
import (
"context"
"flag"
"fmt"
"github.com/netbirdio/netbird/client/system"
"io/ioutil"
"os"
"os/exec"
"path"
@@ -15,6 +17,8 @@ import (
"syscall"
"time"
"github.com/netbirdio/netbird/client/system"
"github.com/cenkalti/backoff/v4"
_ "embed"
@@ -58,6 +62,8 @@ func main() {
flag.Parse()
a := app.New()
a.SetIcon(fyne.NewStaticResource("netbird", iconDisconnectedPNG))
client := newServiceClient(daemonAddr, a, showSettings)
if showSettings {
a.Run()
@@ -110,7 +116,7 @@ type serviceClient struct {
iLogFile *widget.Entry
iPreSharedKey *widget.Entry
// observable settings over correspondign iMngURL and iPreSharedKey values.
// observable settings over corresponding iMngURL and iPreSharedKey values.
managementURL string
preSharedKey string
adminURL string
@@ -118,7 +124,7 @@ type serviceClient struct {
// newServiceClient instance constructor
//
// This constructor olso build UI elements for settings window.
// This constructor also builds the UI elements for the settings window.
func newServiceClient(addr string, a fyne.App, showSettings bool) *serviceClient {
s := &serviceClient{
ctx: context.Background(),
@@ -146,7 +152,7 @@ func newServiceClient(addr string, a fyne.App, showSettings bool) *serviceClient
func (s *serviceClient) showUIElements() {
// add settings window UI elements.
s.wSettings = s.app.NewWindow("Settings")
s.wSettings = s.app.NewWindow("NetBird Settings")
s.iMngURL = widget.NewEntry()
s.iAdminURL = widget.NewEntry()
s.iConfigFile = widget.NewEntry()
@@ -321,13 +327,15 @@ func (s *serviceClient) updateStatus() error {
return err
}
if status.Status == string(internal.StatusConnected) {
if status.Status == string(internal.StatusConnected) && !s.mUp.Disabled() {
systray.SetIcon(s.icConnected)
systray.SetTooltip("NetBird (Connected)")
s.mStatus.SetTitle("Connected")
s.mUp.Disable()
s.mDown.Enable()
} else {
} else if status.Status != string(internal.StatusConnected) && s.mUp.Disabled() {
systray.SetIcon(s.icDisconnected)
systray.SetTooltip("NetBird (Disconnected)")
s.mStatus.SetTitle("Disconnected")
s.mDown.Disable()
s.mUp.Enable()
@@ -352,6 +360,7 @@ func (s *serviceClient) updateStatus() error {
func (s *serviceClient) onTrayReady() {
systray.SetIcon(s.icDisconnected)
systray.SetTooltip("NetBird")
// setup systray menu items
s.mStatus = systray.AddMenuItem("Disconnected", "Disconnected")
@@ -497,7 +506,7 @@ func (s *serviceClient) getSrvConfig() {
// checkPIDFile exists and return error, or write new.
func checkPIDFile() error {
pidFile := path.Join(os.TempDir(), "wiretrustee-ui.pid")
if piddata, err := ioutil.ReadFile(pidFile); err == nil {
if piddata, err := os.ReadFile(pidFile); err == nil {
if pid, err := strconv.Atoi(string(piddata)); err == nil {
if process, err := os.FindProcess(pid); err == nil {
if err := process.Signal(syscall.Signal(0)); err == nil {
@@ -507,5 +516,5 @@ func checkPIDFile() error {
}
}
return ioutil.WriteFile(pidFile, []byte(fmt.Sprintf("%d", os.Getpid())), 0o664)
return os.WriteFile(pidFile, []byte(fmt.Sprintf("%d", os.Getpid())), 0o664)
}

109
dns/dns.go Normal file
View File

@@ -0,0 +1,109 @@
// Package dns implement dns types and standard methods and functions
// to parse and normalize dns records and configuration
package dns
import (
"fmt"
"github.com/miekg/dns"
"golang.org/x/net/idna"
"net"
"regexp"
"strings"
)
const (
// DefaultDNSPort well-known port number
DefaultDNSPort = 53
// RootZone is a string representation of the root zone
RootZone = "."
// DefaultClass is the class supported by the system
DefaultClass = "IN"
)
const invalidHostLabel = "[^a-zA-Z0-9-]+"
// Config represents a dns configuration that is exchanged between management and peers
type Config struct {
// ServiceEnable indicates if the service should be enabled
ServiceEnable bool
// NameServerGroups contains a list of nameserver group
NameServerGroups []*NameServerGroup
// CustomZones contains a list of custom zone
CustomZones []CustomZone
}
// CustomZone represents a custom zone to be resolved by the dns server
type CustomZone struct {
// Domain is the zone's domain
Domain string
// Records custom zone records
Records []SimpleRecord
}
// SimpleRecord provides a simple DNS record specification for CNAME, A and AAAA records
type SimpleRecord struct {
// Name domain name
Name string
// Type of record, 1 for A, 5 for CNAME, 28 for AAAA. see https://pkg.go.dev/github.com/miekg/dns@v1.1.41#pkg-constants
Type int
// Class dns class, currently use the DefaultClass for all records
Class string
// TTL time-to-live for the record
TTL int
// RData is the actual value resolved in a dns query
RData string
}
// String returns a string of the simple record formatted as:
// <Name> <TTL> <Class> <Type> <RDATA>
func (s SimpleRecord) String() string {
fqdn := dns.Fqdn(s.Name)
return fmt.Sprintf("%s %d %s %s %s", fqdn, s.TTL, s.Class, dns.Type(s.Type).String(), s.RData)
}
// Len returns the length of the RData field, based on its type
func (s SimpleRecord) Len() uint16 {
emptyString := s.RData == ""
switch s.Type {
case 1:
if emptyString {
return 0
}
return net.IPv4len
case 5:
if emptyString || s.RData == "." {
return 1
}
return uint16(len(s.RData) + 1)
case 28:
if emptyString {
return 0
}
return net.IPv6len
default:
return 0
}
}
// GetParsedDomainLabel returns a domain label with max 59 characters,
// parsed for old Hosts.txt requirements, and converted to ASCII and lowercase
func GetParsedDomainLabel(name string) (string, error) {
labels := dns.SplitDomainName(name)
if len(labels) == 0 {
return "", fmt.Errorf("got empty label list for name \"%s\"", name)
}
rawLabel := labels[0]
ascii, err := idna.Punycode.ToASCII(rawLabel)
if err != nil {
return "", fmt.Errorf("unable to convert host lavel to ASCII, error: %v", err)
}
invalidHostMatcher := regexp.MustCompile(invalidHostLabel)
validHost := strings.ToLower(invalidHostMatcher.ReplaceAllString(ascii, "-"))
if len(validHost) > 58 {
validHost = validHost[:59]
}
return validHost, nil
}

192
dns/nameserver.go Normal file
View File

@@ -0,0 +1,192 @@
package dns
import (
"fmt"
"net/netip"
"net/url"
"strconv"
"strings"
)
const (
// InvalidNameServerType invalid nameserver type
InvalidNameServerType NameServerType = iota
// UDPNameServerType udp nameserver type
UDPNameServerType
)
const (
// MaxGroupNameChar maximum group name size
MaxGroupNameChar = 40
// InvalidNameServerTypeString invalid nameserver type as string
InvalidNameServerTypeString = "invalid"
// UDPNameServerTypeString udp nameserver type as string
UDPNameServerTypeString = "udp"
)
// NameServerType nameserver type
type NameServerType int
// String returns nameserver type string
func (n NameServerType) String() string {
switch n {
case UDPNameServerType:
return UDPNameServerTypeString
default:
return InvalidNameServerTypeString
}
}
// ToNameServerType returns a nameserver type
func ToNameServerType(typeString string) NameServerType {
switch typeString {
case UDPNameServerTypeString:
return UDPNameServerType
default:
return InvalidNameServerType
}
}
// NameServerGroup group of nameservers and with group ids
type NameServerGroup struct {
// ID identifier of group
ID string
// Name group name
Name string
// Description group description
Description string
// NameServers list of nameservers
NameServers []NameServer
// Groups list of peer group IDs to distribute the nameservers information
Groups []string
// Primary indicates that the nameserver group is the primary resolver for any dns query
Primary bool
// Domains indicate the dns query domains to use with this nameserver group
Domains []string
// Enabled group status
Enabled bool
}
// NameServer represents a DNS nameserver
type NameServer struct {
// IP address of nameserver
IP netip.Addr
// NSType nameserver type
NSType NameServerType
// Port nameserver listening port
Port int
}
// Copy copies a nameserver object
func (n *NameServer) Copy() *NameServer {
return &NameServer{
IP: n.IP,
NSType: n.NSType,
Port: n.Port,
}
}
// IsEqual compares one nameserver with the other
func (n *NameServer) IsEqual(other *NameServer) bool {
return other.IP == n.IP &&
other.NSType == n.NSType &&
other.Port == n.Port
}
// ParseNameServerURL parses a nameserver url in the format <type>://<ip>:<port>, e.g., udp://1.1.1.1:53
func ParseNameServerURL(nsURL string) (NameServer, error) {
parsedURL, err := url.Parse(nsURL)
if err != nil {
return NameServer{}, err
}
var ns NameServer
parsedScheme := strings.ToLower(parsedURL.Scheme)
nsType := ToNameServerType(parsedScheme)
if nsType == InvalidNameServerType {
return NameServer{}, fmt.Errorf("invalid nameserver url schema type, got %s", parsedScheme)
}
ns.NSType = nsType
parsedPort, err := strconv.Atoi(parsedURL.Port())
if err != nil {
return NameServer{}, fmt.Errorf("invalid nameserver url port, got %s", parsedURL.Port())
}
ns.Port = parsedPort
parsedAddr, err := netip.ParseAddr(parsedURL.Hostname())
if err != nil {
return NameServer{}, fmt.Errorf("invalid nameserver url IP, got %s", parsedURL.Hostname())
}
ns.IP = parsedAddr
return ns, nil
}
// Copy copies a nameserver group object
func (g *NameServerGroup) Copy() *NameServerGroup {
return &NameServerGroup{
ID: g.ID,
Name: g.Name,
Description: g.Description,
NameServers: g.NameServers,
Groups: g.Groups,
Enabled: g.Enabled,
Primary: g.Primary,
Domains: g.Domains,
}
}
// IsEqual compares one nameserver group with the other
func (g *NameServerGroup) IsEqual(other *NameServerGroup) bool {
return other.ID == g.ID &&
other.Name == g.Name &&
other.Description == g.Description &&
other.Primary == g.Primary &&
compareNameServerList(g.NameServers, other.NameServers) &&
compareGroupsList(g.Groups, other.Groups) &&
compareGroupsList(g.Domains, other.Domains)
}
func compareNameServerList(list, other []NameServer) bool {
if len(list) != len(other) {
return false
}
for _, ns := range list {
if !containsNameServer(ns, other) {
return false
}
}
return true
}
func containsNameServer(element NameServer, list []NameServer) bool {
for _, ns := range list {
if ns.IsEqual(&element) {
return true
}
}
return false
}
func compareGroupsList(list, other []string) bool {
if len(list) != len(other) {
return false
}
for _, id := range list {
match := false
for _, otherID := range other {
if id == otherID {
match = true
break
}
}
if !match {
return false
}
}
return true
}

View File

@@ -1,104 +0,0 @@
### Table of contents
* [About Netbird](#about-netbird)
* [Why Wireguard with Netbird?](#why-wireguard-with-netbird)
* [Netbird vs. Traditional VPN](#netbird-vs-traditional-vpn)
* [High-level technology overview](#high-level-technology-overview)
* [Getting started](#getting-started)
### About Netbird
Netbird is an open-source VPN platform built on top of [WireGuard®](https://www.wireguard.com/) making it easy to create secure private networks for your organization or home.
It requires zero configuration effort leaving behind the hassle of opening ports, complex firewall rules, vpn gateways, and so forth.
There is no centralized VPN server with Netbird - your computers, devices, machines, and servers connect to each other directly over a fast encrypted tunnel.
It literally takes less than 5 minutes to provision a secure peer-to-peer VPN with Netbird. Check our [Quickstart Guide Video](https://www.youtube.com/watch?v=cWTsGUJAUaU) to see the setup in action.
### Why Wireguard with Netbird?
WireGuard is a modern and extremely fast VPN tunnel utilizing state-of-the-art [cryptography](https://www.wireguard.com/protocol/)
and Netbird uses Wireguard to establish a secure tunnel between machines.
Built with simplicity in mind, Wireguard ensures that traffic between two machines is encrypted and flowing, however, it requires a few things to be done beforehand.
First, in order to connect, the machines have to be configured.
On each machine, you need to generate private and public keys and prepare a WireGuard configuration file.
The configuration also includes a private IP address that should be unique per machine.
Secondly, to accept the incoming traffic, the machines have to trust each other.
The generated public keys have to be pre-shared on the machines.
This works similarly to SSH with its authorised_keys file.
Lastly, the connectivity between the machines has to be ensured.
To make machines reach one another, you are required to set a WireGuard endpoint property which indicates the IP address and port of the remote machine to connect to.
On many occasions, machines are hidden behind firewalls and NAT devices,
meaning that you may need to configure a port forwarding or open holes in your firewall to ensure the machines are reachable.
The undertakings mentioned above might not be complicated if you have just a few machines, but the complexity grows as the number of machines increases.
Netbird simplifies the setup by automatically generating private and public keys, assigning unique private IP addresses, and takes care of sharing public keys between the machines.
It is worth mentioning that the private key never leaves the machine.
So only the machine that owns the key can decrypt traffic addressed to it.
The same applies also to the relayed traffic mentioned below.
Furthermore, Netbird ensures connectivity by leveraging advanced [NAT traversal techniques](https://en.wikipedia.org/wiki/NAT_traversal)
and removing the necessity of port forwarding, opening holes in the firewall, and having a public static IP address.
In cases when a direct peer-to-peer connection isn't possible, all traffic is relayed securely between peers.
Netbird also monitors the connection health and restarts broken connections.
There are a few more things that we are working on to make secure private networks simple. A few examples are ACLs, MFA and activity monitoring.
Check out the WireGuard [Quick Start](https://www.wireguard.com/quickstart/) guide to learn more about configuring "plain" WireGuard without Netbird.
### Netbird vs. Traditional VPN
In the traditional VPN model, everything converges on a centralized, protected network where all the clients are connecting to a central VPN server.
An increasing amount of connections can easily overload the VPN server.
Even a short downtime of a server can cause expensive system disruptions, and a remote team's inability to work.
Centralized VPNs imply all the traffic going through the central server causing network delays and increased traffic usage.
Such systems require an experienced team to set up and maintain.
Configuring firewalls, setting up NATs, SSO integration, and managing access control lists can be a nightmare.
Traditional centralized VPNs are often compared to a [castle-and-moat](https://en.wikipedia.org/wiki/Moat) model
in which once accessed, user is trusted and can access critical infrastructure and resources without any restrictions.
Netbird decentralizes networks using direct point-to-point connections, as opposed to traditional models.
Consequently, network performance is increased since traffic flows directly between the machines bypassing VPN servers or gateways.
To achieve this, Netbird client applications employ signalling servers to find other machines and negotiate connections.
These are similar to the signaling servers used in [WebRTC](https://developer.mozilla.org/en-US/docs/Web/API/WebRTC_API/Signaling_and_video_calling#the_signaling_server)
Thanks to [NAT traversal techniques](https://en.wikipedia.org/wiki/NAT_traversal),
outlined in the [Why not just Wireguard?](#why-wireguard-with-netbird) section above,
Netbird installation doesn't require complex network and firewall configuration.
It just works, minimising the maintenance effort.
Finally, each machine or device in the Netbird network verifies incoming connections accepting only the trusted ones.
This is ensured by Wireguard's [Crypto Routing concept](https://www.wireguard.com/#cryptokey-routing).
### High-level technology overview
In essence, Netbird is an open source platform consisting of a collection of systems, responsible for handling peer-to-peer connections, tunneling and network management (IP, keys, ACLs, etc).
<p align="center">
<img src="media/high-level-dia.png" alt="high-level-dia" width="781"/>
</p>
Netbird uses open-source technologies like [WireGuard®](https://www.wireguard.com/), [Pion ICE (WebRTC)](https://github.com/pion/ice), [Coturn](https://github.com/coturn/coturn),
and [software](https://github.com/netbirdio/netbird) developed by Netbird authors to make it all work together.
To learn more about Netbird architecture, please refer to the [architecture section](../docs/architecture.md).
### Getting Started
There are 2 ways of getting started with Netbird:
- use Cloud Managed version
- self-hosting
We recommend starting with the cloud managed version hosted at [app.netbird.io](https://app.netbird.io) - the quickest way to get familiar with the system.
See [Quickstart Guide](../docs/quickstart.md) for instructions.
If you don't want to use the managed version, check out our [Self-hosting Guide](../docs/self-hosting.md).

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@@ -1,2 +0,0 @@
### Architecture
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