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From: Pawel Jakub Dawidek <pjd@FreeBSD.org>
Date: Thu, 22 Apr 2010 18:47:23 +0000 (UTC)
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Cc: 
Subject: svn commit: r207068 -
	head/sys/cddl/contrib/opensolaris/uts/common/fs/zfs
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Author: pjd
Date: Thu Apr 22 18:47:23 2010
New Revision: 207068
URL: http://svn.freebsd.org/changeset/base/207068

Log:
  Allow to modify directory's content even if the ZFS_NOUNLINK (SF_NOUNLINK,
  sunlnk) flag is set. We only deny dirctory's removal or rename.
  
  PR:		kern/143343
  Reported by:	marck
  MFC after:	3 days

Modified:
  head/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/zfs_acl.c

Modified: head/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/zfs_acl.c
==============================================================================
--- head/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/zfs_acl.c	Thu Apr 22 18:44:23 2010	(r207067)
+++ head/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/zfs_acl.c	Thu Apr 22 18:47:23 2010	(r207068)
@@ -2235,11 +2235,24 @@ zfs_zaccess_common(znode_t *zp, uint32_t
 		return (EPERM);
 	}
 
+#ifdef sun
 	if ((v4_mode & (ACE_DELETE | ACE_DELETE_CHILD)) &&
 	    (zp->z_phys->zp_flags & ZFS_NOUNLINK)) {
 		*check_privs = B_FALSE;
 		return (EPERM);
 	}
+#else
+	/*
+	 * In FreeBSD we allow to modify directory's content is ZFS_NOUNLINK
+	 * (sunlnk) is set. We just don't allow directory removal, which is
+	 * handled in zfs_zaccess_delete().
+	 */
+	if ((v4_mode & ACE_DELETE) &&
+	    (zp->z_phys->zp_flags & ZFS_NOUNLINK)) {
+		*check_privs = B_FALSE;
+		return (EPERM);
+	}
+#endif
 
 	if (((v4_mode & (ACE_READ_DATA|ACE_EXECUTE)) &&
 	    (zp->z_phys->zp_flags & ZFS_AV_QUARANTINED))) {