diff options
| author | Fabricio Voznika <fvoznika@google.com> | 2020-01-28 18:30:36 -0800 |
|---|---|---|
| committer | gVisor bot <gvisor-bot@google.com> | 2020-01-28 18:31:28 -0800 |
| commit | 396c574db276ae1424af7098b5cd917e2bed9921 (patch) | |
| tree | b2d6a6df79482d7f41d8deaeabf6247557e73463 /pkg/sentry/fsimpl/kernfs | |
| parent | 3d046fef06ece6ba20770fa62e0a21569226adaa (diff) | |
Add support for WritableSource in DynamicBytesFileDescriptionImpl
WritableSource is a convenience interface used for files that can
be written to, e.g. /proc/net/ipv4/tpc_sack. It reads max of 4KB
and only from offset 0 which should cover most cases. It can be
extended as neeed.
Updates #1195
PiperOrigin-RevId: 292056924
Diffstat (limited to 'pkg/sentry/fsimpl/kernfs')
| -rw-r--r-- | pkg/sentry/fsimpl/kernfs/dynamic_bytes_file.go | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/pkg/sentry/fsimpl/kernfs/dynamic_bytes_file.go b/pkg/sentry/fsimpl/kernfs/dynamic_bytes_file.go index 373f801ff..733792c78 100644 --- a/pkg/sentry/fsimpl/kernfs/dynamic_bytes_file.go +++ b/pkg/sentry/fsimpl/kernfs/dynamic_bytes_file.go @@ -108,12 +108,12 @@ func (fd *DynamicBytesFD) PRead(ctx context.Context, dst usermem.IOSequence, off // Write implements vfs.FileDescriptionImpl.Write. func (fd *DynamicBytesFD) Write(ctx context.Context, src usermem.IOSequence, opts vfs.WriteOptions) (int64, error) { - return fd.FileDescriptionDefaultImpl.Write(ctx, src, opts) + return fd.DynamicBytesFileDescriptionImpl.Write(ctx, src, opts) } // PWrite implements vfs.FileDescriptionImpl.PWrite. func (fd *DynamicBytesFD) PWrite(ctx context.Context, src usermem.IOSequence, offset int64, opts vfs.WriteOptions) (int64, error) { - return fd.FileDescriptionDefaultImpl.PWrite(ctx, src, offset, opts) + return fd.DynamicBytesFileDescriptionImpl.PWrite(ctx, src, offset, opts) } // Release implements vfs.FileDescriptionImpl.Release. |