CIFS: Add SMB2 support for hardlink operation
[linux-3.10.git] / fs / cifs / smb2inode.c
index a6952ba..1921c9c 100644 (file)
@@ -78,6 +78,10 @@ smb2_open_op_close(const unsigned int xid, struct cifs_tcon *tcon,
                tmprc = SMB2_rename(xid, tcon, persistent_fid, volatile_fid,
                                    (__le16 *)data);
                break;
+       case SMB2_OP_HARDLINK:
+               tmprc = SMB2_set_hardlink(xid, tcon, persistent_fid,
+                                         volatile_fid, (__le16 *)data);
+               break;
        default:
                cERROR(1, "Invalid command");
                break;
@@ -175,10 +179,10 @@ smb2_unlink(const unsigned int xid, struct cifs_tcon *tcon, const char *name,
                                  SMB2_OP_DELETE);
 }
 
-int
-smb2_rename_path(const unsigned int xid, struct cifs_tcon *tcon,
-                const char *from_name, const char *to_name,
-                struct cifs_sb_info *cifs_sb)
+static int
+smb2_set_path_attr(const unsigned int xid, struct cifs_tcon *tcon,
+                  const char *from_name, const char *to_name,
+                  struct cifs_sb_info *cifs_sb, __u32 access, int command)
 {
        __le16 *smb2_to_name = NULL;
        int rc;
@@ -189,9 +193,27 @@ smb2_rename_path(const unsigned int xid, struct cifs_tcon *tcon,
                goto smb2_rename_path;
        }
 
-       rc = smb2_open_op_close(xid, tcon, cifs_sb, from_name, DELETE,
-                               FILE_OPEN, 0, 0, smb2_to_name, SMB2_OP_RENAME);
+       rc = smb2_open_op_close(xid, tcon, cifs_sb, from_name, access,
+                               FILE_OPEN, 0, 0, smb2_to_name, command);
 smb2_rename_path:
        kfree(smb2_to_name);
        return rc;
 }
+
+int
+smb2_rename_path(const unsigned int xid, struct cifs_tcon *tcon,
+                const char *from_name, const char *to_name,
+                struct cifs_sb_info *cifs_sb)
+{
+       return smb2_set_path_attr(xid, tcon, from_name, to_name, cifs_sb,
+                                 DELETE, SMB2_OP_RENAME);
+}
+
+int
+smb2_create_hardlink(const unsigned int xid, struct cifs_tcon *tcon,
+                    const char *from_name, const char *to_name,
+                    struct cifs_sb_info *cifs_sb)
+{
+       return smb2_set_path_attr(xid, tcon, from_name, to_name, cifs_sb,
+                                 FILE_READ_ATTRIBUTES, SMB2_OP_HARDLINK);
+}