Commit Graph

61 Commits

Author SHA1 Message Date
Spike Curtis bddb808b25 chore: arrange imports in a standard way (#21452)
Fixes all our Go file imports to match the preferred spec that we've _mostly_ been using. For example:

```
import (
	"context"
	"time"

	"github.com/prometheus/client_golang/prometheus"
	"golang.org/x/xerrors"
	"gopkg.in/natefinch/lumberjack.v2"

	"cdr.dev/slog/v3"
	"github.com/coder/coder/v2/codersdk/agentsdk"
	"github.com/coder/serpent"
)
```

3 groups: standard library, 3rd partly libs, Coder libs.

This PR makes the change across the codebase. The PR in the stack above modifies our formatting to maintain this state of affairs, and is a separate PR so it's possible to review that one in detail.
2026-01-08 15:24:11 +04:00
Spike Curtis 49b34a716a fix: fix slog to always use array of Fields (#21426)
Upgrades to slog v3 which includes a small, but backward incompatible API change to the acceptible call arguments when logging. This change allows us to verify via compile time type checking that arguments are correct and won't cause a panic, as was possible in slog v1, which this replaces (v2 was tagged but never used in coder/coder).

It also updates dependencies that also use slog and were updated.

I've left the `aibridge` dependency as a commit SHA, under the assumption that the team there (cc @pawbana @dannykopping ) will tag and update the dependency soon and on their own schedule.

Other dependencies, I pushed new tags.
2026-01-08 10:29:41 +04:00
Mathias Fredriksson 6bea82bafc fix(agent/agentssh)!: use configured directory for SFTP connections (#21194)
BREAKING CHANGE: SFTP/SCP now respects the agent's configured directory.

If your workspace agent has a custom `dir` configured in Terraform, SFTP
and SCP connections will now land there instead of `$HOME`. Previously,
only SSH and rsync respected this setting, which caused confusing behavior
where `scp file.txt coder:.` and `rsync file.txt coder:.` would put files
in different places. If you have scripts that relied on SFTP/SCP always
using `$HOME` regardless of agent configuration, you may need to use
explicit paths instead.
2025-12-16 16:35:51 +02:00
Spike Curtis 40df21ed62 fix: fixes use of possibly nil RemoteAddr() and LocalAddr() return values (#21076)
fixes: https://github.com/coder/internal/issues/1143

Both gVisor and the Go standard library implementations of `net.Conn` can under certain circumstances return `nil` for `RemoteAddr()` and `LocalAddr()` calls. If we call their methods, we segfault.

This PR fixes these calls and adds ruleguard rules.

Note that `slog.F("remote_addr", conn.RemoteAddr())` is fine because slog detects the `nil` before attempting to stringify the type.
2025-12-03 15:06:00 +04:00
Garrett Delfosse dd867bd743 fix: fix jetbrains toolbox connection tracking (#19348)
Fixes https://github.com/coder/coder/issues/18350

I attempted the route of relying on just the session env vars, in hopes
that this issue was fixed in Toolbox and the process name matching was
no longer need, but it was not a fruitful endeavor and it seems to be
using the same connection logic as it did in gateway, just with new
binary and flag names.
2025-08-20 08:39:08 -04:00
Spike Curtis 59c8b560fa test: add test that we close stdin on SSH session close (#18711)
closes #18519

Adds a unit test that verifies that we close the stdin to a non-TTY process when the SSH session connected to it exits.

c.f. https://github.com/coder/coder/issues/18519#issuecomment-3027609871

Validates that we match OpenSSH behavior.
2025-07-02 16:23:07 +04:00
Spike Curtis b7cb275d7e fix: stop tearing down non-TTY processes on SSH session end (#18673)
(possibly temporary) fix for #18519

Matches OpenSSH for non-tty sessions, where we don't actively terminate
the process.

Adds explicit tracking to the SSH server for these processes so that if
we are shutting down we terminate them: this ensures that we can shut
down quickly to allow shutdown scripts to run. It also ensures our tests
don't leak system resources.
2025-06-30 22:06:05 +04:00
Spike Curtis a5bfb200fc chore: refactor TestServer_X11 to use inproc networking (#18564)
relates to #18263


Refactors the x11Forwarder to accept a networking `interface` that we can fake out for testing. This isolates the unit tests from other processes listening in the port range used by X11 forwarding. This will become extremely important in up-stack PRs where we listen on every port in the range and need to control which ports have conflicts.
2025-06-27 14:56:33 +04:00
Spike Curtis 9e1cf1693b fix: cap max X11 forwarding ports and evict old (#18561)
partial for #18263

Caps the X11 forwarding sessions at a maximum port of 6200, and evicts the oldest session if we create new sessions while at the max.

Unit tests included higher in the stack.
2025-06-27 14:05:42 +04:00
Mathias Fredriksson 99d124e276 feat(agent): enable devcontainers by default (#18533) 2025-06-24 21:17:04 +03:00
Mathias Fredriksson 3fb5d0b52d fix(agent/agentcontainers): use correct env for execer commands (#18508) 2025-06-24 12:56:54 +03:00
Spike Curtis 1357a3a273 chore: improve logging and x11 handler call (#18422)
* use `ctx` instead of `session.Context()` for consistency
* log SSH connection start with the phrase `ssh connection` for symmetry
with the stop log and ease of `grep`'ing.
2025-06-18 21:21:06 +04:00
Mathias Fredriksson 074ec2887d test(agent/agentssh): fix test race and improve Windows compat (#17271)
Fixes coder/internal#558
2025-04-07 11:32:37 +03:00
Mathias Fredriksson b61f0ab958 fix(agent): ensure SSH server shutdown with process groups (#17227)
Fix hanging workspace shutdowns caused by orphaned SSH child processes.
Key changes:

- Create process groups for non-PTY SSH sessions
- Send SIGHUP to entire process group for proper termination
- Add 5-second timeout to prevent indefinite blocking

Fixes #17108
2025-04-03 16:01:43 +03:00
Jon Ayers 17ddee05e5 chore: update golang to 1.24.1 (#17035)
- Update go.mod to use Go 1.24.1
- Update GitHub Actions setup-go action to use Go 1.24.1
- Fix linting issues with golangci-lint by:
  - Updating to golangci-lint v1.57.1 (more compatible with Go 1.24.1)

🤖 Generated with [Claude Code](https://claude.ai/code)
Co-Authored-By: Claude <noreply@anthropic.com>

---------

Co-authored-by: Claude <claude@anthropic.com>
2025-03-26 01:56:39 -05:00
Mathias Fredriksson 3005cb4594 feat(agent): set additional login vars, LOGNAME and SHELL (#16874)
This change stes additional env vars. This is useful for programs that
assume their presence (for instance, Zed remote relies on SHELL).

See `man login`.
2025-03-11 10:18:57 +00:00
Eng Zer Jun 04c33968cf refactor: replace golang.org/x/exp/slices with slices (#16772)
The experimental functions in `golang.org/x/exp/slices` are now
available in the standard library since Go 1.21.

Reference: https://go.dev/doc/go1.21#slices

Signed-off-by: Eng Zer Jun <engzerjun@gmail.com>
2025-03-04 00:46:49 +11:00
Cian Johnston ec44f06f5c feat(cli): allow SSH command to connect to running container (#16726)
Fixes https://github.com/coder/coder/issues/16709 and
https://github.com/coder/coder/issues/16420

Adds the capability to`coder ssh` into a running container if `CODER_AGENT_DEVCONTAINERS_ENABLE=true`.

Notes:
* SFTP is currently not supported
* Haven't tested X11 container forwarding
* Haven't tested agent forwarding
2025-02-28 09:38:45 +00:00
Mathias Fredriksson 4ba5a8a2ba feat(agent): add connection reporting for SSH and reconnecting PTY (#16652)
Updates #15139
2025-02-27 10:45:45 +00:00
Thomas Kosiewski 38c0e8a086 fix(agent/agentssh): ensure RSA key generation always produces valid keys (#16694)
Modify the RSA key generation algorithm to check that GCD(e, p-1) = 1 and
GCD(e, q-1) = 1 when selecting prime numbers, ensuring that e and φ(n) 
are coprime. This prevents ModInverse from returning nil, which would 
cause private key generation to fail and result in a panic when `Precompute` is called.

Change-Id: I0a453e1e1f8c638e40e7a4b87a6d0d7299e1cb5d
Signed-off-by: Thomas Kosiewski <tk@coder.com>
2025-02-26 11:45:35 +01:00
Cian Johnston 172e52317c feat(agent): wire up agentssh server to allow exec into container (#16638)
Builds on top of https://github.com/coder/coder/pull/16623/ and wires up
the ReconnectingPTY server. This does nothing to wire up the web
terminal yet but the added test demonstrates the functionality working.

Other changes:
* Refactors and moves the `SystemEnvInfo` interface to the
`agent/usershell` package to address follow-up from
https://github.com/coder/coder/pull/16623#discussion_r1967580249
* Marks `usershellinfo.Get` as deprecated. Consumers should use the
`EnvInfoer` interface instead.

---------

Co-authored-by: Mathias Fredriksson <mafredri@gmail.com>
Co-authored-by: Danny Kopping <danny@coder.com>
2025-02-26 09:03:27 +00:00
Thomas Kosiewski 660746462e fix(agent/agentssh): use deterministic host key for SSH server (#16626)
Fixes: https://github.com/coder/coder/issues/16490

The Agent's SSH server now initially generates fixed host keys and, once it receives its manifest, generates and replaces that host key with the one derived from the workspace ID, ensuring consistency across agent restarts. This prevents SSH warnings and host key verification errors when connecting to workspaces through Coder Desktop.

While deterministic keys might seem insecure, the underlying Wireguard tunnel already provides encryption and anti-spoofing protection at the network layer, making this approach acceptable for our use case.

---
Change-Id: I8c7e3070324e5d558374fd6891eea9d48660e1e9
Signed-off-by: Thomas Kosiewski <tk@coder.com>
2025-02-21 14:58:41 +01:00
Mathias Fredriksson 9f5ad23644 refactor(agent/agentssh): move parsing of magic session and create type (#16630)
This change refactors the parsing of MagicSessionEnvs in the agentssh
package and moves the logic to an earlier stage. Also intoduces enums
for MagicSessionType.

Refs #15139
2025-02-19 22:18:31 +02:00
Cian Johnston 4edd77bc82 chore(agent/agentssh): extract CreateCommandDeps (#16603)
Extracts environment-level dependencies of
`agentssh.Server.CreateCommand()` to an interface to allow alternative
implementations to be passed in.
2025-02-19 09:03:59 +00:00
Jon Ayers ce573b9faa fix: add agent exec abstraction (#15717) 2024-12-04 23:30:25 +02:00
Jon Ayers 1f238fed59 feat: integrate new agentexec pkg (#15609)
- Integrates the `agentexec` pkg into the agent and removes the
legacy system of iterating over the process tree. It adds some linting
rules to hopefully catch future improper uses of `exec.Command` in the package.
2024-11-27 20:12:15 +02:00
Mathias Fredriksson 8f07d3357e feat(agent/agentssh): use tcp for X11 forwarding (#14560)
Fixes #14198
2024-09-04 20:06:08 +03:00
Marcin Tojek e96652ebbc feat: block file transfers for security (#13501) 2024-06-10 12:12:23 +00:00
Kayla Washburn-Love b248f125e1 chore: rename notification banners to announcement banners (#13419) 2024-05-31 10:59:28 -06:00
Kayla Washburn-Love d8e0be6ee6 feat: add support for multiple banners (#13081) 2024-05-08 15:40:43 -06:00
Mathias Fredriksson c63f569174 refactor(agent/agentssh): move envs to agent and add agentssh config struct (#12204)
This commit refactors where custom environment variables are set in the
workspace and decouples agent specific configs from the `agentssh.Server`.
To reproduce all functionality, `agentssh.Config` is introduced.

The custom environment variables are now configured in `agent/agent.go`
and the agent retains control of the final state. This will allow for
easier extension in the future and keep other modules decoupled.
2024-02-19 16:30:00 +02:00
Mathias Fredriksson f2aef0726b fix(agent/agentssh): allow scp to exit with zero status (#12028)
Fixes #11786
2024-02-07 10:22:31 +02:00
Steven Masley 081fbef097 fix: code-server path based forwarding, defer to code-server (#11759)
Do not attempt to construct a path based port forward url.
Always defer to code server, as it has it's own proxy method.
2024-01-23 11:36:44 -06:00
Mathias Fredriksson 385d58caf6 fix(agent/agentssh): allow remote forwarding a socket multiple times (#11631)
* fix(agent/agentssh): allow remote forwarding a socket multiple times

Fixes #11198
Fixes https://github.com/coder/customers/issues/407
2024-01-16 21:26:13 +02:00
Mathias Fredriksson df3c310379 feat(cli): add coder open vscode (#11191)
Fixes #7667
2024-01-02 20:46:18 +02:00
Asher dbbf8acc26 fix: track JetBrains connections (#10968)
* feat: implement jetbrains agentssh tracking

Based on tcp forwarding instead of ssh connections

* Add JetBrains tracking to bottom bar
2023-12-07 12:15:54 -09:00
Spike Curtis 6c67add2d9 fix: detect and retry reverse port forward on used port (#10844)
Fixes #10799

The flake happens when we try to remote forward, but the port we've chosen is not free.  In the flaked example, it's actually the SSH listener that occupies the port we try to remote forward, leading to confusing reads (c.f. the linked issue).

This fix simplies the tests considerably by using the Go ssh client, rather than shelling out to OpenSSH.  This avoids using a pseudoterminal, avoids the need for starting any local OS listeners to communicate the forwarding (go SSH just returns in-process listeners), and avoids an OS listener to wire OpenSSH up to the agentConn.

With the simplied logic, we can immediately tell if a remote forward on a random port fails, so we can do this in a loop until success or timeout.

I've also simplified and fixed up the other forwarding tests. Since we set up forwarding in-process with Go ssh, we can remove a lot of the `require.Eventually` logic.
2023-11-27 09:42:45 +04:00
Mathias Fredriksson 61be4dfe5a fix: improve exit codes for agent/agentssh and cli/ssh (#10850) 2023-11-24 14:35:56 +02:00
Mathias Fredriksson 2c6e0f7d0a feat(agent/agentssh): handle session signals (#10842) 2023-11-23 19:55:36 +02:00
Steven Masley e448c10122 chore: add uuid's to ssh sessions for logging (#10721)
* chore: add uuid to ssh connection logs
2023-11-17 16:04:23 +00:00
Steven Masley 63a4f5f4a7 fix: case insensitive magic label (#10592) 2023-11-08 11:17:14 -06:00
Kyle Carberry 54648b90ca fix: properly trim spaces so multi-line shebang executes (#10146) 2023-10-09 19:19:57 +00:00
Kyle Carberry b402f2a816 feat: add shebang support to scripts (#10134)
This enables much greater portability!
2023-10-09 10:57:57 -05:00
Steven Masley e0e6d7c9a6 fix: case insensitve agent ssh session env var (#9675) 2023-09-13 14:18:00 -05:00
Kyle Carberry 22e781eced chore: add /v2 to import module path (#9072)
* chore: add /v2 to import module path

go mod requires semantic versioning with versions greater than 1.x

This was a mechanical update by running:
```
go install github.com/marwan-at-work/mod/cmd/mod@latest
mod upgrade
```

Migrate generated files to import /v2

* Fix gen
2023-08-18 18:55:43 +00:00
Mathias Fredriksson 34c3f919dc fix(agent/agentssh): check for hushlogin via afero fs (#8358) 2023-07-07 13:30:23 +03:00
Mathias Fredriksson 3f058f28e7 test(agent): use afero for motd tests to allow parallel execution (#8329) 2023-07-06 10:57:51 +03:00
Asher 6015319e9d feat: show service banner in SSH/TTY sessions (#8186)
* Allow workspace agents to get appearance
* Poll for service banner every two minutes
* Show service banner before MOTD if not quiet
2023-06-30 10:41:29 -08:00
Spike Curtis e738123a9c chore: log ssh connection disconnects with errors (#8143)
Signed-off-by: Spike Curtis <spike@coder.com>
2023-06-22 11:37:50 +04:00
Marcin Tojek 4fb4c9b270 chore: add more rules to ensure logs consistency (#8104) 2023-06-21 12:00:38 +02:00