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From cf3af6ab831129e7f8e50eb00d9a4120e297cf7a Mon Sep 17 00:00:00 2001
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From: Karel Zak <kzak@redhat.com>
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Date: Thu, 7 Jan 2016 11:02:49 +0100
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Subject: [PATCH 5/5] mount.cifs: ignore x-* mount options
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x-* prefix is used for userspace mount options and it's pretty
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commonly used to extend fstab configuration in systemd world (e.g.
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x-systemd.automount). These options is necessary to ignored.
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The command mount(8) does not pass x-* mount options to mount.<type>
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helpers, but in some use-cases it's possible that the cifs helper reads
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mount options from fstab or users directly call mount.cifs and copy & past
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mount options, etc.
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This patch marks all options prefixed by "x-" as OPT_IGNORE to make
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things more robust for end-users. We already uses the same concept for
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_netdev.
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Signed-off-by: Karel Zak <kzak@redhat.com>
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Signed-off-by: Jeff Layton <jlayton@samba.org>
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(cherry picked from commit be5046ae3fabca17f19672f7b4019efb6a869298)
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Signed-off-by: Sachin Prabhu <sprabhu@redhat.com>
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---
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mount.cifs.c | 2 ++
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1 file changed, 2 insertions(+)
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diff --git a/mount.cifs.c b/mount.cifs.c
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index 3535096..5c5734f 100644
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--- a/mount.cifs.c
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+++ b/mount.cifs.c
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@@ -756,6 +756,8 @@ static int parse_opt_token(const char *token)
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return OPT_BKUPGID;
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if (strncmp(token, "nofail", 6) == 0)
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return OPT_NOFAIL;
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+ if (strncmp(token, "x-", 2) == 0)
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+ return OPT_IGNORE;
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return OPT_ERROR;
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}
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--
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2.5.5
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