Changes the `Read` and `Write` error handling
logic to return the original error while closing
the connection. We still skip calling `handleEOF`
if already closing the connection.
Fixes the flaky `TestCloseWhileWriting` and
`TestCloseWhileReading` tests.
Co-authored-by: Sebastiaan van Stijn <github@gone.nl>
Signed-off-by: Laura Brehm <laurabrehm@hey.com>
(cherry picked from commit d5f564adaa)
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
---
commandconn: fix race on `Close()`
During normal operation, if a `Read()` or `Write()` call results
in an EOF, we call `onEOF()` to handle the terminating command,
and store it's exit value.
However, if a Read/Write call was blocked while `Close()` is called
the in/out pipes are immediately closed which causes an EOF to be
returned. Here, we shouldn't call `onEOF()`, since the reason why
we got an EOF is because we're already terminating the connection.
This also prevents a race between two calls to the commands `Wait()`,
in the `Close()` call and `onEOF()`
---
Add CLI init timeout to SSH connections
---
connhelper: add 30s ssh default dialer timeout
(same as non-ssh dialer)
Signed-off-by: Laura Brehm <laurabrehm@hey.com>
(cherry picked from commit a5ebe2282a)
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
Older versions of Go do not format these comments, so we can already
reformat them ahead of time to prevent gofmt linting failing once
we update to Go 1.19 or up.
Result of:
gofmt -s -w $(find . -type f -name '*.go' | grep -v "/vendor/")
With some manual adjusting.
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
On Windows, the os/exec.{Command,CommandContext,LookPath} functions
resolve command names that have neither path separators nor file extension
(e.g., "git") by first looking in the current working directory before
looking in the PATH environment variable.
Go maintainers intended to match cmd.exe's historical behavior.
However, this is pretty much never the intended behavior and as an abundance of precaution
this patch prevents that when executing commands.
Example of commands that docker.exe may execute: `git`, `docker-buildx` (or other cli plugin), `docker-credential-wincred`, `docker`.
Note that this was prompted by the [Go 1.15.7 security fixes](https://blog.golang.org/path-security), but unlike in `go.exe`,
the windows path lookups in docker are not in a code path allowing remote code execution, thus there is no security impact on docker.
Signed-off-by: Tibor Vass <tibor@docker.com>
Setting `Setsid` is needed for SSH connection helper with `ProxyCommand`
config, so as to detach TTY.
e.g.
$ cat ~/.ssh/config
Host foo
Hostname foo
ProxyCommand ssh -W %h:%p bastion
$ DOCKER_HOST=ssh://foo docker run -it --rm alpine
/ #
Fix#1707
Signed-off-by: Akihiro Suda <suda.akihiro@lab.ntt.co.jp>
Laura Brehm
Sebastiaan van Stijn
Patrick Daigle
Tibor Vass
Akihiro Suda