[CIFS] UID/GID override on CIFS mounts to Samba
When CIFS Unix Extensions are negotiated we get the Unix uid and gid
owners of the file from the server (on the Unix Query Path Info
levels), but if the server's uids don't match the client uid's users
were having to disable the Unix Extensions (which turned off features
they still wanted). The changeset patch allows users to override uid
and/or gid for file/directory owner with a default uid and/or gid
specified at mount (as is often done when mounting from Linux cifs
client to Windows server). This changeset also displays the uid
and gid used by default in /proc/mounts (if applicable).
Also cleans up code by adding some of the missing spaces after
"if" keywords per-kernel style guidelines (as suggested by Randy Dunlap
when he reviewed the patch).
Signed-off-by: Steve French <sfrench@us.ibm.com>
diff --git a/fs/cifs/cifs_fs_sb.h b/fs/cifs/cifs_fs_sb.h
index fd1e52e..4cc2012 100644
--- a/fs/cifs/cifs_fs_sb.h
+++ b/fs/cifs/cifs_fs_sb.h
@@ -22,12 +22,14 @@
#define CIFS_MOUNT_SET_UID 2 /* set current->euid in create etc. */
#define CIFS_MOUNT_SERVER_INUM 4 /* inode numbers from uniqueid from server */
#define CIFS_MOUNT_DIRECT_IO 8 /* do not write nor read through page cache */
-#define CIFS_MOUNT_NO_XATTR 0x10 /* if set - disable xattr support */
-#define CIFS_MOUNT_MAP_SPECIAL_CHR 0x20 /* remap illegal chars in filenames */
-#define CIFS_MOUNT_POSIX_PATHS 0x40 /* Negotiate posix pathnames if possible. */
-#define CIFS_MOUNT_UNX_EMUL 0x80 /* Network compat with SFUnix emulation */
-#define CIFS_MOUNT_NO_BRL 0x100 /* No sending byte range locks to srv */
-#define CIFS_MOUNT_CIFS_ACL 0x200 /* send ACL requests to non-POSIX srv */
+#define CIFS_MOUNT_NO_XATTR 0x10 /* if set - disable xattr support */
+#define CIFS_MOUNT_MAP_SPECIAL_CHR 0x20 /* remap illegal chars in filenames */
+#define CIFS_MOUNT_POSIX_PATHS 0x40 /* Negotiate posix pathnames if possible*/
+#define CIFS_MOUNT_UNX_EMUL 0x80 /* Network compat with SFUnix emulation */
+#define CIFS_MOUNT_NO_BRL 0x100 /* No sending byte range locks to srv */
+#define CIFS_MOUNT_CIFS_ACL 0x200 /* send ACL requests to non-POSIX srv */
+#define CIFS_MOUNT_OVERR_UID 0x400 /* override uid returned from server */
+#define CIFS_MOUNT_OVERR_GID 0x800 /* override gid returned from server */
struct cifs_sb_info {
struct cifsTconInfo *tcon; /* primary mount */