diff options
Diffstat (limited to 'pkg/sentry/fsimpl/fuse/connection.go')
| -rw-r--r-- | pkg/sentry/fsimpl/fuse/connection.go | 16 |
1 files changed, 15 insertions, 1 deletions
diff --git a/pkg/sentry/fsimpl/fuse/connection.go b/pkg/sentry/fsimpl/fuse/connection.go index 6df2728ab..7d3c30116 100644 --- a/pkg/sentry/fsimpl/fuse/connection.go +++ b/pkg/sentry/fsimpl/fuse/connection.go @@ -78,8 +78,13 @@ type Response struct { type connection struct { fd *DeviceFD + // mu protect access to struct memebers. + mu sync.Mutex + + // attributeVersion is the version of connection's attributes. + attributeVersion uint64 + // The following FUSE_INIT flags are currently unsupported by this implementation: - // - FUSE_ATOMIC_O_TRUNC: requires open(..., O_TRUNC) // - FUSE_EXPORT_SUPPORT // - FUSE_HANDLE_KILLPRIV // - FUSE_POSIX_LOCKS: requires POSIX locks @@ -113,6 +118,11 @@ type connection struct { // TODO(gvisor.dev/issue/3185): abort all queued requests. aborted bool + // atomicOTrunc is true when FUSE does not send a separate SETATTR request + // before open with O_TRUNC flag. + // Negotiated and only set in INIT. + atomicOTrunc bool + // connInitError if FUSE_INIT encountered error (major version mismatch). // Only set in INIT. connInitError bool @@ -189,6 +199,10 @@ type connection struct { // dontMask if filestestem does not apply umask to creation modes. // Negotiated in INIT. dontMask bool + + // noOpen if FUSE server doesn't support open operation. + // This flag only influence performance, not correctness of the program. + noOpen bool } // newFUSEConnection creates a FUSE connection to fd. |