Author: avg
Date: Wed Jun 24 14:39:38 2015
New Revision: 284759
URL: https://svnweb.freebsd.org/changeset/base/284759
Log:
MFC r284303: MFV r283534: 5515 dataset user hold doesn't reject empty tags
Modified:
stable/9/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/zfs_ioctl.c
Directory Properties:
stable/9/sys/ (props changed)
stable/9/sys/cddl/contrib/opensolaris/ (props changed)
Modified: stable/9/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/zfs_ioctl.c
==============================================================================
--- stable/9/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/zfs_ioctl.c Wed Jun
24 14:39:26 2015 (r284758)
+++ stable/9/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/zfs_ioctl.c Wed Jun
24 14:39:38 2015 (r284759)
@@ -24,7 +24,7 @@
* Copyright (c) 2011-2012 Pawel Jakub Dawidek <pa...@dawidek.net>.
* All rights reserved.
* Copyright 2013 Martin Matuska <m...@freebsd.org>. All rights reserved.
- * Copyright 2011 Nexenta Systems, Inc. All rights reserved.
+ * Copyright 2015 Nexenta Systems, Inc. All rights reserved.
* Copyright (c) 2014, Joyent, Inc. All rights reserved.
* Copyright (c) 2013 by Delphix. All rights reserved.
* Copyright (c) 2013 by Saso Kiselkov. All rights reserved.
@@ -5200,6 +5200,7 @@ zfs_ioc_smb_acl(zfs_cmd_t *zc)
static int
zfs_ioc_hold(const char *pool, nvlist_t *args, nvlist_t *errlist)
{
+ nvpair_t *pair;
nvlist_t *holds;
int cleanup_fd = -1;
int error;
@@ -5209,6 +5210,19 @@ zfs_ioc_hold(const char *pool, nvlist_t
if (error != 0)
return (SET_ERROR(EINVAL));
+ /* make sure the user didn't pass us any invalid (empty) tags */
+ for (pair = nvlist_next_nvpair(holds, NULL); pair != NULL;
+ pair = nvlist_next_nvpair(holds, pair)) {
+ char *htag;
+
+ error = nvpair_value_string(pair, &htag);
+ if (error != 0)
+ return (SET_ERROR(error));
+
+ if (strlen(htag) == 0)
+ return (SET_ERROR(EINVAL));
+ }
+
if (nvlist_lookup_int32(args, "cleanup_fd", &cleanup_fd) == 0) {
error = zfs_onexit_fd_hold(cleanup_fd, &minor);
if (error != 0)
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