diff options
| author | Ayush Ranjan <ayushranjan@google.com> | 2020-11-06 18:50:33 -0800 |
|---|---|---|
| committer | gVisor bot <gvisor-bot@google.com> | 2020-11-06 18:52:38 -0800 |
| commit | fe9442d3270d14c095932d917e4e53e706866217 (patch) | |
| tree | 1490229d4f071cac2cd509d3f8ff5d68b856f326 /pkg/sentry/fsimpl/kernfs | |
| parent | 3ac00fe9c3396f07a1416ff7fc855f6f9a3c4304 (diff) | |
[vfs] Return EEXIST when file already exists and rp.MustBeDir() is true.
This is consistent with what Linux does. This was causing a PHP runtime test
failure. Fixed it for VFS2.
PiperOrigin-RevId: 341155209
Diffstat (limited to 'pkg/sentry/fsimpl/kernfs')
| -rw-r--r-- | pkg/sentry/fsimpl/kernfs/filesystem.go | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/pkg/sentry/fsimpl/kernfs/filesystem.go b/pkg/sentry/fsimpl/kernfs/filesystem.go index d125435d9..e77523f22 100644 --- a/pkg/sentry/fsimpl/kernfs/filesystem.go +++ b/pkg/sentry/fsimpl/kernfs/filesystem.go @@ -355,6 +355,9 @@ func (fs *Filesystem) LinkAt(ctx context.Context, rp *vfs.ResolvingPath, vd vfs. if err := checkCreateLocked(ctx, rp.Credentials(), pc, parent); err != nil { return err } + if rp.MustBeDir() { + return syserror.ENOENT + } if rp.Mount() != vd.Mount() { return syserror.EXDEV } @@ -433,6 +436,9 @@ func (fs *Filesystem) MknodAt(ctx context.Context, rp *vfs.ResolvingPath, opts v if err := checkCreateLocked(ctx, rp.Credentials(), pc, parent); err != nil { return err } + if rp.MustBeDir() { + return syserror.ENOENT + } if err := rp.Mount().CheckBeginWrite(); err != nil { return err } @@ -825,6 +831,9 @@ func (fs *Filesystem) SymlinkAt(ctx context.Context, rp *vfs.ResolvingPath, targ if err := checkCreateLocked(ctx, rp.Credentials(), pc, parent); err != nil { return err } + if rp.MustBeDir() { + return syserror.ENOENT + } if err := rp.Mount().CheckBeginWrite(); err != nil { return err } |