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| author | Ridwan Sharif <ridwanmsharif@google.com> | 2020-06-09 12:35:39 -0400 |
|---|---|---|
| committer | Ridwan Sharif <ridwanmsharif@google.com> | 2020-07-23 17:13:24 -0400 |
| commit | 3e0e3b9b11fee58835a0a492d66e72b354459e27 (patch) | |
| tree | b34c4e927c51f6ba074bde5f1c451a36c5b8f0c6 /pkg/sentry/syscalls/linux/vfs2/mount.go | |
| parent | 15da310efaad5574ca7b0fe03cb76919fdffc5ce (diff) | |
Added stub FUSE filesystem
Allow FUSE filesystems to be mounted using libfuse.
The appropriate flags and mount options are parsed and
understood by fusefs.
Diffstat (limited to 'pkg/sentry/syscalls/linux/vfs2/mount.go')
| -rw-r--r-- | pkg/sentry/syscalls/linux/vfs2/mount.go | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/pkg/sentry/syscalls/linux/vfs2/mount.go b/pkg/sentry/syscalls/linux/vfs2/mount.go index adeaa39cc..ea337de7c 100644 --- a/pkg/sentry/syscalls/linux/vfs2/mount.go +++ b/pkg/sentry/syscalls/linux/vfs2/mount.go @@ -77,8 +77,7 @@ func Mount(t *kernel.Task, args arch.SyscallArguments) (uintptr, *kernel.Syscall // Silently allow MS_NOSUID, since we don't implement set-id bits // anyway. - const unsupportedFlags = linux.MS_NODEV | - linux.MS_NODIRATIME | linux.MS_STRICTATIME + const unsupportedFlags = linux.MS_NODIRATIME | linux.MS_STRICTATIME // Linux just allows passing any flags to mount(2) - it won't fail when // unknown or unsupported flags are passed. Since we don't implement @@ -94,6 +93,12 @@ func Mount(t *kernel.Task, args arch.SyscallArguments) (uintptr, *kernel.Syscall if flags&linux.MS_NOEXEC == linux.MS_NOEXEC { opts.Flags.NoExec = true } + if flags&linux.MS_NODEV == linux.MS_NODEV { + opts.Flags.NoDev = true + } + if flags&linux.MS_NOSUID == linux.MS_NOSUID { + opts.Flags.NoSUID = true + } if flags&linux.MS_RDONLY == linux.MS_RDONLY { opts.ReadOnly = true } |