x-* prefix is used for userspace mount options and it's pretty
commonly used to extend fstab configuration in systemd world (e.g.
x-systemd.automount). These options is necessary to ignored.
The command mount(8) does not pass x-* mount options to mount.<type>
helpers, but in some use-cases it's possible that the cifs helper reads
mount options from fstab or users directly call mount.cifs and copy & past
mount options, etc.
This patch marks all options prefixed by "x-" as OPT_IGNORE to make
things more robust for end-users. We already uses the same concept for
_netdev.
Signed-off-by: Karel Zak <k...@redhat.com>
---
mount.cifs.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/mount.cifs.c b/mount.cifs.c
index 3535096..5c5734f 100644
--- a/mount.cifs.c
+++ b/mount.cifs.c
@@ -756,6 +756,8 @@ static int parse_opt_token(const char *token)
return OPT_BKUPGID;
if (strncmp(token, "nofail", 6) == 0)
return OPT_NOFAIL;
+ if (strncmp(token, "x-", 2) == 0)
+ return OPT_IGNORE;
return OPT_ERROR;
}
--
2.4.3
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