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| author | Dean Deng <deandeng@google.com> | 2020-04-28 08:32:20 -0700 |
|---|---|---|
| committer | gVisor bot <gvisor-bot@google.com> | 2020-04-28 08:34:00 -0700 |
| commit | f3ca5ca82abe35d13210f8a8035926170bb87436 (patch) | |
| tree | 964fb61f6d52b3cf103d52eab814ea38fd671374 /pkg/sentry/fs/gofer | |
| parent | 316394ee8920cd4dc84e031278e5d336d9db0944 (diff) | |
Support pipes and sockets in VFS2 gofer fs.
Named pipes and sockets can be represented in two ways in gofer fs:
1. As a file on the remote filesystem. In this case, all file operations are
passed through 9p.
2. As a synthetic file that is internal to the sandbox. In this case, the
dentry stores an endpoint or VFSPipe for sockets and pipes respectively,
which replaces interactions with the remote fs through the gofer.
In gofer.filesystem.MknodAt, we attempt to call mknod(2) through 9p,
and if it fails, fall back to the synthetic version.
Updates #1200.
PiperOrigin-RevId: 308828161
Diffstat (limited to 'pkg/sentry/fs/gofer')
| -rw-r--r-- | pkg/sentry/fs/gofer/socket.go | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/pkg/sentry/fs/gofer/socket.go b/pkg/sentry/fs/gofer/socket.go index 10ba2f5f0..40f2c1cad 100644 --- a/pkg/sentry/fs/gofer/socket.go +++ b/pkg/sentry/fs/gofer/socket.go @@ -47,6 +47,8 @@ func (i *inodeOperations) BoundEndpoint(inode *fs.Inode, path string) transport. return &endpoint{inode, i.fileState.file.file, path} } +// LINT.IfChange + // endpoint is a Gofer-backed transport.BoundEndpoint. // // An endpoint's lifetime is the time between when InodeOperations.BoundEndpoint() @@ -146,3 +148,5 @@ func (e *endpoint) Release() { func (e *endpoint) Passcred() bool { return false } + +// LINT.ThenChange(../../fsimpl/gofer/socket.go) |