* Add gocritic linter
`gocritic` provides diagnostics that check for bugs, performance, and style issues
We disable the following checks:
- commentFormatting
- captLocal
- deprecatedComment
This PR contains many `//nolint:gocritic` to disable `appendAssign`.
- dupword checks for duplicate words in the source code
- durationcheck checks for two durations multiplied together
- forbidigo forbids identifiers
- mirror reports wrong mirror patterns of bytes/strings usage
- misspell finds commonly misspelled English words in comments
- predeclared finds code that shadows one of Go's predeclared identifiers
- thelper detects Go test helpers without t.Helper() call and checks the consistency of test helpers
Supporting search domains will allow users to define match domains to also
be added to a list of search domains in their systems
Fix Windows registry key configuration for search domains using a key within the netbird interface path
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.
Reduce the peer status notifications
When receive new network map invoke multiple notifications for
every single peers. It cause high cpu usage We handle the in a
batch the peer notification in update network map.
- Remove the unnecessary UpdatePeerFQDN calls in addNewPeer
- Fix notification in RemovePeer function
- Involve FinishPeerListModifications logic
* Extend protocol and firewall manager to handle old management
* Send correct empty firewall rules list when delete peer
* Add extra tests for firewall manager and uspfilter
* Work with inconsistent state
* Review note
* Update comment
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.
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.
On Android, because of the hard SELinux policies can not list the
interfaces of the ICE package. Without it can not generate a host type
candidate. In this pull request, the list of interfaces comes via the Java
interface.
Before defining if we will use direct or proxy connection we will exchange a
message with the other peer if the modes match we keep the decision
from the shouldUseProxy function otherwise we skip using direct connection.
Added a feature support message to the signal protocol
The peer login expiration ACL check introduced in #714
filters out peers that are expired and agents receive a network map
without that expired peers.
However, the agents should see those peers in status "Disconnected".
This PR extends the Agent <-> Management protocol
by introducing a new field OfflinePeers
that contain expired peers. Agents keep track of those and display
then just in the Status response.
The ConnStatus is a custom type based on iota
like an enum. The problem was nowhere used to the
benefits of this implementation. All ConnStatus
instances has been compared with strings. I
suppose the reason to do it to avoid a circle
dependency. In this commit the separated status
package has been moved to peer package.
Remove unused, exported functions from engine
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.
Adding --external-ip-map and --dns-resolver-address to up command and shorthand option to global flags.
Refactor get and read config functions with new ConfigInput type.
updated cobra package to latest release.
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
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
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
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
Added additional common blacklisted interfaces
Updated the signal protocol to pass the peer port and netbird version
Co-authored-by: braginini <bangvalo@gmail.com>
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.
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.
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.
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.
When stopping engine, all peer conns have to be closed
and for each peer WireGuard iface is called
to remove WireGuard peer.
This operation happens in a goroutine causing
Engine to remove the whole WireGuard interface before.
Therefore consequent calls to RemovePeer are unsuccessful.
This fix just adds a small delay before removing interface.
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.
* test: WIP mocking the grpc server for testing the sending of the client information
* WIP: Test_SystemMetaDataFromClient with mocks, todo:
* fix: failing meta data test
* test: add system meta expectation in management client test
* fix: removing deprecated register function, replacing with new one
* fix: removing deprecated register function from mockclient interface impl
* fix: fixing interface declaration
* chore: remove unused commented code
Co-authored-by: braginini <bangvalo@gmail.com>
* 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
* feature: support new management service protocol
* chore: add more logging to track networkmap serial
* refactor: organize peer update code in engine
* chore: fix lint issues
* refactor: extract Signal client interface
* test: add signal client mock
* refactor: introduce Management Service client interface
* chore: place management and signal clients mocks to respective packages
* test: add Serial test to the engine
* fix: lint issues
* test: unit tests for a networkMapUpdate
* test: unit tests Sync update
* 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>
* fix: too many open files caused by agent not being closed after unsuccessful attempts to start a peer connection (happens when no network available)
* fix: minor refactor to consider signal status
* refactor: move goroutine that runs Signal Client Receive to the engine for better control
* chore: fix comments typo
* test: fix golint
* chore: comments update
* chore: consider connection state=READY in signal and management clients
* chore: fix typos
* test: fix signal ping-pong test
* chore: add wait condition to signal client
* refactor: add stream status to the Signal client
* refactor: defer mutex unlock
* feature: update STUNs and TURNs in engine
* fix: setup TURN credentials request only when refresh enabled
* feature: update TURNs and STUNs in teh client app on Management update
* chore: disable peer reflexive candidates in ICE
* chore: relocate management.json
* chore: make TURN secret and pwd plain text in config
* 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
