In case the 53 UDP port is not an option to bind then we hijack the DNS traffic with eBPF, and we forward the traffic to the listener on a custom port. With this implementation, we should be able to listen to DNS queries on any address and still set the local host system to send queries to the custom address on port 53.
Because we tried to attach multiple XDP programs to the same interface, I did a refactor in the WG traffic forward code also.
This PR showcases the implementation of additional linter rules. I've updated the golangci-lint GitHub Actions to the latest available version. This update makes sure that the tool works the same way locally - assuming being updated regularly - and with the GitHub Actions.
I've also taken care of keeping all the GitHub Actions up to date, which helps our code stay current. But there's one part, goreleaser that's a bit tricky to test on our computers. So, it's important to take a close look at that.
To make it easier to understand what I've done, I've made separate changes for each thing that the new linters found. This should help the people reviewing the changes see what's going on more clearly. Some of the changes might not be obvious at first glance.
Things to consider for the future
CI runs on Ubuntu so the static analysis only happens for Linux. Consider running it for the rest: Darwin, Windows
EBPF proxy between TURN (relay) and WireGuard to reduce number of used ports used by the NetBird agent.
- Separate the wg configuration from the proxy logic
- In case if eBPF type proxy has only one single proxy instance
- In case if the eBPF is not supported fallback to the original proxy Implementation
Between the signature of eBPF type proxy and original proxy has
differences so this is why the factory structure exists
* Add DNS list argument for mobile client
* Write testable code
Many places are checked the wgInterface != nil condition.
It is doing it just because to avoid the real wgInterface creation for tests.
Instead of this involve a wgInterface interface what is moc-able.
* Refactor the DNS server internal code structure
With the fake resolver has been involved several
if-else statement and generated some unused
variables to distinguish the listener and fake
resolver solutions at running time. With this
commit the fake resolver and listener based
solution has been moved into two separated
structure. Name of this layer is the 'service'.
With this modification the unit test looks
simpler and open the option to add new logic for
the permanent DNS service usage for mobile
systems.
* Remove is running check in test
We can not ensure the state well so remove this
check. The test will fail if the server is not
running well.
Works only with userspace implementation:
1. Configure host to solve DNS requests via a fake DSN server address in the Netbird network.
2. Add to firewall catch rule for these DNS requests.
3. Resolve these DNS requests and respond by writing directly to wireguard device.
Add new feature to notify the user when new client route has arrived.
Refactor the initial route handling. I move every route logic into the route
manager package.
* Add notification management for client rules
* Export the route notification for Android
* Compare the notification based on network range instead of id.
- wireguard/windows version update to 0.5.3
- follow up forked wireguard-go MTU related changes
- fix MTU settings on Windows
---------
Co-authored-by: Maycon Santos <mlsmaycon@gmail.com>
This PR brings support of a shared port between stun (ICE agent) and
the kernel WireGuard
It implements a single port mode for execution with kernel WireGuard
interface using a raw socket listener.
BPF filters ensure that only STUN packets hit the NetBird userspace app
Removed a lot of the proxy logic and direct mode exchange.
Now we are doing an extra hole punch to the remote WireGuard
port for best-effort cases and support to old client's direct mode.
This PR adds supports for the WireGuard userspace implementation
using Bind interface from wireguard-go.
The newly introduced ICEBind struct implements Bind with UDPMux-based
structs from pion/ice to handle hole punching using ICE.
The core implementation was taken from StdBind of wireguard-go.
The result is a single WireGuard port that is used for host and server reflexive candidates.
Relay candidates are still handled separately and will be integrated in the following PRs.
ICEBind checks the incoming packets for being STUN or WireGuard ones
and routes them to UDPMux (to handle hole punching) or to WireGuard respectively.
Small code cleaning in the iface package. These changes necessary to
get a clean code in case if we involve more platforms. The OS related
functions has been distributed into separate files and it has been
mixed with not OS related logic. The goal is to get a clear picture
of the layer between WireGuard and business logic.
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
* 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
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
Before this change, NetBird Agent wasn't handling
peer interface configuration changes dynamically.
Also, remote peer configuration changes have
not been applied (e.g. AllowedIPs changed).
Not a very common cause, but still it should be handled.
Now, Agent reacts to PeerConfig changes sent from the
management service and restarts remote connections
if AllowedIps have been changed.
Updates test workflows with serial execution to avoid collision
of ports and resource names.
Also, used -exec sudo flag for UNIX tests and removed not-needed
limits configuration on Linux and added a 5 minutes timeout.
Updated the multi-peer tests in the client/internal/engine_test.go
to provide proper validation when creating or starting
a peer engine instance fails.
As some operations of the tests running on windows
are slow, we will experiment with disabling the Defender before
restoring cache and checkout a repository, then we reenable
it to run the tests.
disabled extra logs for windows interface
* Added Domain Category field and fix store tests
* Add GetAccountByDomain method
* Add Domain Category to authorization claims
* Initial GetAccountWithAuthorizationClaims test cases
* Renamed Private Domain map and index it on saving account
* New Go build tags
* Added NewRegularUser function
* Updated restore to account for primary domain account
Also, added another test case
* Added grouping user of private domains
Also added auxiliary methods for update metadata and domain attributes
* Update http handles get account method and tests
* Fix lint and document another case
* Removed unnecessary log
* Move use cases to method and add flow comments
* Split the new user and existing logic from GetAccountWithAuthorizationClaims
* Review: minor corrections
Co-authored-by: braginini <bangvalo@gmail.com>
When one of the peers has a static public host IP
or both peers are in the same local network
we establish a direct Wireguard connection
bypassing proxy usage.
This helps reduce FD usage and improves
performance.
* update interface tests and configuration messages
* little debug
* little debug on both errors
* print all devs
* list of devices
* debug func
* handle interface close
* debug socks
* debug socks
* if ports match
* use random assigned ports
* remove unused const
* close management client connection when stopping engine
* GracefulStop when management clients are closed
* enable workflows on PRs too
* remove iface_test debug code
* script to generate syso files
* test wireguard-windows driver package
* set int log
* add windows test
* add windows test
* verbose bash
* use cd
* move checkout
* exit 0
* removed tty flag
* artifact path
* fix tags and add cache
* fix cache
* fix cache
* test dir
* restore artifacts in the root
* try dll file
* try dll file
* copy dll
* typo in copy dll
* compile test
* checkout first
* updated cicd
* fix add address issue and gen GUID
* psexec typo
* accept eula
* mod tidy before tests
* regular test exec and verbose test with psexec
* test all
* return WGInterface Interface
* use WgIfaceName and timeout after 30 seconds
* different ports and validate connect 2 peers
* Use time.After for timeout and close interface
* Use time.After for testing connect peers
* WG Interface struct
* Update engine and parse address
* refactor Linux create and assignAddress
* NewWGIface and configuration methods
* Update proxy with interface methods
* update up command test
* resolve lint warnings
* remove psexec test
* close copied files
* add goos before build
* run tests on mac,windows and linux
* cache by testing os
* run on push
* fix indentation
* adjust test timeouts
* remove parallel flag
* mod tidy before test
* ignore syso files
* removed functions and renamed vars
* different IPs for connect peers test
* Generate syso with DLL
* Single Close method
* use port from test constant
* test: remove wireguard interfaces after finishing engine test
* use load_wgnt_from_rsrc
Co-authored-by: braginini <bangvalo@gmail.com>
* feature: replace RegisterPeer with Login method that does both - registration and login
* test: add management login test
* feature: add WiretrusteeConfig to the Login response to configure peer global config
* feature: add client peer login support
* fix: missing parts
* chore: update go deps
* feature: support Management Service gRPC endpoints [CLIENT]
* feature: finalize client sync with management
* fix: management store peer key lower case restore
* fix: management returns peer ip without a mask
* refactor: remove cmd pkg
* fix: invalid tun interface name on mac
* fix: timeout when calling management client
* fix: tests and lint errors
* fix: golang-test workflow
* fix: client service tests
* fix: iface build
* feature: detect management scheme on startup
* chore: better logs for management
* fix: goreleaser
* fix: lint errors
* fix: signal TLS
* fix: direct Wireguard connection
* chore: verbose logging on direct connection
