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Handle acl flags from util-linux mount command

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Add acl, noacl and posixacl to option_map, avoiding ENOENT error
case when mount from util-linux-2.24 execs mount.zfs with any of
those flags

Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: renelson <bnelson@nelsonbe.com>
Issue #1968
This commit is contained in:
renelson 2013-12-17 10:44:23 -08:00 committed by Brian Behlendorf
parent 758d35520b
commit a5f3665168
3 changed files with 19 additions and 3 deletions
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4
cmd/mount_zfs/mount_zfs.c
View File

@ -61,6 +61,10 @@ static const option_map_t option_map[] = {
{ MNTOPT_SYNC, MS_SYNCHRONOUS, ZS_COMMENT },
{ MNTOPT_USER, MS_USERS, ZS_COMMENT },
{ MNTOPT_USERS, MS_USERS, ZS_COMMENT },
/* acl flags passed with util-linux-2.24 mount command */
{ MNTOPT_ACL, MS_POSIXACL, ZS_COMMENT },
{ MNTOPT_NOACL, MS_COMMENT, ZS_COMMENT },
{ MNTOPT_POSIXACL, MS_POSIXACL, ZS_COMMENT },
#ifdef MS_NOATIME
{ MNTOPT_NOATIME, MS_NOATIME, ZS_COMMENT },
#endif

9
lib/libspl/include/sys/mntent.h
View File

@ -93,9 +93,12 @@
#define MNTOPT_NOXATTR "noxattr" /* disable extended attributes */
#define MNTOPT_COMMENT "comment" /* comment */
#define MNTOPT_ZFSUTIL "zfsutil" /* called by zfs utility */
#define MNTOPT_ACL "acl" /* passed by util-linux-2.24 mount */
#define MNTOPT_NOACL "noacl" /* likewise */
#define MNTOPT_POSIXACL "posixacl" /* likewise */
#define ZS_COMMENT 0x00000000 /* comment */
#define ZS_ZFSUTIL 0x00000001 /* caller is zfs(8) */
#define ZS_NOCONTEXT 0x00000002 /* do not add selinux context */
#define ZS_COMMENT 0x00000000 /* comment */
#define ZS_ZFSUTIL 0x00000001 /* caller is zfs(8) */
#define ZS_NOCONTEXT 0x00000002 /* do not add selinux context */
#endif /* _SYS_MNTENT_H */

9
lib/libspl/include/sys/mount.h
View File

@ -51,6 +51,15 @@
#define MS_DIRSYNC S_WRITE
#endif
/*
* Some old glibc headers don't correctly define MS_POSIXACL and
* instead leave it undefined. When using these older headers define
* MS_POSIXACL to the reserved value of (1<<16).
*/
#if !defined(MS_POSIXACL)
#define MS_POSIXACL (1<<16)
#endif
#define MS_USERS (MS_NOEXEC|MS_NOSUID|MS_NODEV)
#define MS_OWNER (MS_NOSUID|MS_NODEV)
#define MS_GROUP (MS_NOSUID|MS_NODEV)