[src/trunk]: src/sys/fs/v7fs Check parent directory write permission for DELE...

[njoly <njoly%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/65306e90c27d
branches:  trunk
changeset: 773074:65306e90c27d
user:      njoly <njoly%NetBSD.org@localhost>
date:      Fri Jan 27 12:22:02 2012 +0000

description:
Check parent directory write permission for DELETE operation.

ok uch@.

diffstat:

 sys/fs/v7fs/v7fs_vnops.c |  11 +++++++++--
 1 files changed, 9 insertions(+), 2 deletions(-)

diffs (32 lines):

diff -r 6acaa20544ed -r 65306e90c27d sys/fs/v7fs/v7fs_vnops.c
--- a/sys/fs/v7fs/v7fs_vnops.c  Fri Jan 27 08:47:52 2012 +0000
+++ b/sys/fs/v7fs/v7fs_vnops.c  Fri Jan 27 12:22:02 2012 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: v7fs_vnops.c,v 1.6 2011/07/30 03:53:18 uch Exp $       */
+/*     $NetBSD: v7fs_vnops.c,v 1.7 2012/01/27 12:22:02 njoly Exp $     */
 
 /*-
  * Copyright (c) 2004, 2011 The NetBSD Foundation, Inc.
@@ -30,7 +30,7 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: v7fs_vnops.c,v 1.6 2011/07/30 03:53:18 uch Exp $");
+__KERNEL_RCSID(0, "$NetBSD: v7fs_vnops.c,v 1.7 2012/01/27 12:22:02 njoly Exp $");
 #if defined _KERNEL_OPT
 #include "opt_v7fs.h"
 #endif
@@ -161,6 +161,13 @@
                return error;
        }
 
+       if ((nameiop == DELETE) && islastcn) {
+               if ((error = VOP_ACCESS(dvp, VWRITE, cnp->cn_cred))) {
+                       DPRINTF("access denied. (%s)\n", name);
+                       return error;
+               }
+       }
+
        /* Entry found. Allocate v-node */
        // Check permissions?
        vpp = 0;