diff options
| author | Giuseppe Scrivano <gscrivan@redhat.com> | 2016-08-12 12:15:28 +0200 |
|---|---|---|
| committer | Giuseppe Scrivano <gscrivan@redhat.com> | 2016-08-12 12:26:46 +0200 |
| commit | e4188b1d2423d62d60838b82fadc1e4dceb5f5a1 (patch) | |
| tree | 56be13a8b44acf558a8a0d8abc7655234c251334 /bind-mount.c | |
| parent | 95a2ded375f736ab96afc08785b0ab29f9a188ed (diff) | |
| download | bubblewrap-e4188b1d2423d62d60838b82fadc1e4dceb5f5a1.tar.gz | |
Add --remount-ro DEST
This allows to remount a mount point as read only.
It will allow us, by remounting / after other mount points are created,
to handle a readonly rootfs as specified in the OCI specs:
https://github.com/opencontainers/runtime-spec/blob/master/config.md#root-configuration
Signed-off-by: Giuseppe Scrivano <gscrivan@redhat.com>
Diffstat (limited to 'bind-mount.c')
| -rw-r--r-- | bind-mount.c | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/bind-mount.c b/bind-mount.c index 72fd3c5..d5c45b8 100644 --- a/bind-mount.c +++ b/bind-mount.c @@ -244,8 +244,11 @@ bind_mount (int proc_fd, unsigned long current_flags, new_flags; int i; - if (mount (src, dest, NULL, MS_MGC_VAL | MS_BIND | (recursive ? MS_REC : 0), NULL) != 0) - return 1; + if (src) + { + if (mount (src, dest, NULL, MS_MGC_VAL | MS_BIND | (recursive ? MS_REC : 0), NULL) != 0) + return 1; + } current_flags = get_mountflags (proc_fd, dest); |