[CIFS] ACL support part 5

Acked-by: Shirish Pargaonkar <shirishp@us.ibm.com>
Signed-off-by: Steve French <sfrench@us.ibm.com>

3 files changed, 30 insertions, 1 deletions

diff --git a/fs/cifs/cifsacl.c b/fs/cifs/cifsacl.c
index e8e56353f5a1..e8083043a26c 100644
--- a/fs/cifs/cifsacl.c
+++ b/fs/cifs/cifsacl.c
@@ -129,6 +129,29 @@ int compare_sids(struct cifs_sid *ctsid, struct cifs_sid *cwsid)
         return (1); /* sids compare/match */
 }
 
+void get_mode_from_acl(struct inode * inode, const char * path)
+{
+        
+        if (inode == NULL)
+                return;
+
+        /* find an open readable handle
+           if handle found
+                 lock handle 
+           else open file
+              if no open file can not hurt to check if path is null
+           GetCIFSACL
+           for all ACEs in ACL {
+                   if U or G or O
+                           inode->i_mode = parse_ace(file_type, UG or O, ace->perms, inode->i_mode)
+                   else continue
+           }
+           if handle open close it
+           else unlock handle */
+
+        return;
+}
+
 
 static void parse_ace(struct cifs_ace *pace, char *end_of_acl)
 {
diff --git a/fs/cifs/cifsproto.h b/fs/cifs/cifsproto.h
index 1a883663b22d..7c445f8f233f 100644
--- a/fs/cifs/cifsproto.h
+++ b/fs/cifs/cifsproto.h
@@ -92,7 +92,7 @@ extern int cifs_get_inode_info(struct inode **pinode,
 extern int cifs_get_inode_info_unix(struct inode **pinode,
                         const unsigned char *search_path,
                         struct super_block *sb, int xid);
-
+extern void get_mode_from_acl(struct inode * inode, const char * search_path);
 extern int cifs_mount(struct super_block *, struct cifs_sb_info *, char *,
                         const char *);
 extern int cifs_umount(struct super_block *, struct cifs_sb_info *);
diff --git a/fs/cifs/inode.c b/fs/cifs/inode.c
index 5e8b388be3b6..9a5c0c925bab 100644
--- a/fs/cifs/inode.c
+++ b/fs/cifs/inode.c
@@ -527,6 +527,12 @@ int cifs_get_inode_info(struct inode **pinode,
 
                 /* BB fill in uid and gid here? with help from winbind?
                    or retrieve from NTFS stream extended attribute */
+#ifdef CONFIG_CIFS_EXPERIMENTAL
+                if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_CIFS_ACL) {
+                        cFYI(1, ("Getting mode bits from ACL"));
+                        get_mode_from_acl(inode, search_path);
+                }
+#endif
                 if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_UNX_EMUL) {
                         /* fill in uid, gid, mode from server ACL */
                         /* BB FIXME this should also take into account the