diff options
| author | Steve French <stfrench@microsoft.com> | 2019-06-24 02:01:42 -0500 |
|---|---|---|
| committer | Steve French <stfrench@microsoft.com> | 2019-07-07 22:37:43 -0500 |
| commit | 412094a8fb0711e9f332bed6723aa59706a4ff7e (patch) | |
| tree | 8c8bb1162dff355aa8c428adda25114eb845905f /fs/cifs/cifs_fs_sb.h | |
| parent | d5ecebc4900df7f6e8dff0717574668885110553 (diff) | |
smb3: add new mount option to retrieve mode from special ACE
There is a special ACE used by some servers to allow the mode
bits to be stored. This can be especially helpful in scenarios
in which the client is trusted, and access checking on the
client vs the POSIX mode bits is sufficient.
Add mount option to allow enabling this behavior.
Follow on patch will add support for chmod and queryinfo
(stat) by retrieving the POSIX mode bits from the special
ACE, SID: S-1-5-88-3
See e.g.
https://docs.microsoft.com/en-us/previous-versions/windows/it-pro/windows-server-2008-R2-and-2008/hh509017(v=ws.10)
Signed-off-by: Steve French <stfrench@microsoft.com>
Reviewed-by: Ronnie Sahlberg <lsahlber@redhat.com>
Diffstat (limited to 'fs/cifs/cifs_fs_sb.h')
| -rw-r--r-- | fs/cifs/cifs_fs_sb.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/fs/cifs/cifs_fs_sb.h b/fs/cifs/cifs_fs_sb.h index afa56237a0c3..b326d2ca3765 100644 --- a/fs/cifs/cifs_fs_sb.h +++ b/fs/cifs/cifs_fs_sb.h @@ -52,6 +52,7 @@ #define CIFS_MOUNT_UID_FROM_ACL 0x2000000 /* try to get UID via special SID */ #define CIFS_MOUNT_NO_HANDLE_CACHE 0x4000000 /* disable caching dir handles */ #define CIFS_MOUNT_NO_DFS 0x8000000 /* disable DFS resolving */ +#define CIFS_MOUNT_MODE_FROM_SID 0x10000000 /* retrieve mode from special ACE */ struct cifs_sb_info { struct rb_root tlink_tree; |