From 3e0e3b9b11fee58835a0a492d66e72b354459e27 Mon Sep 17 00:00:00 2001 From: Ridwan Sharif Date: Tue, 9 Jun 2020 12:35:39 -0400 Subject: Added stub FUSE filesystem Allow FUSE filesystems to be mounted using libfuse. The appropriate flags and mount options are parsed and understood by fusefs. --- pkg/sentry/syscalls/linux/vfs2/mount.go | 9 +++++++-- 1 file changed, 7 insertions(+), 2 deletions(-) (limited to 'pkg/sentry/syscalls') 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 } -- cgit v1.2.3