PSARC/2007/218 caller_context_t in all VOPs

PSARC/2007/227 VFS Feature Registration and ACL on Create
PSARC/2007/244 ZFS Case-insensitive support
PSARC/2007/315 Extensible Attribute Interfaces
PSARC/2007/394 ls(1) new command line options '-/' and '-%': CIFS system attributes support
PSARC/2007/403 Modified Access Checks for CIFS
PSARC/2007/410 Add system attribute support to chmod(1)
PSARC/2007/432 CIFS system attributes support for cp(1), pack(1), unpack(1), compress(1) and uncompress(1)
PSARC/2007/444 Rescind SETTABLE Attribute
PSARC/2007/459 CIFS system attributes support for cpio(1), pax(1), tar(1)
PSARC/2007/546 Update utilities to match CIFS system attributes changes.
PSARC/2007/560 ZFS sharesmb property
4890717 want append-only files
6417428 Case-insensitive file system name lookup to support CIFS
6417435 DOS attributes and additional timestamps to support for CIFS
6417442 File system quarantined and modified attributes to support an integrated Anti-Virus service
6417453 FS boolean property for rejecting/allowing invalid UTF-8 sequences in file names
6473733 RFE: Need support for open-deny modes
6473755 RFE:  Need ability to reconcile oplock and delegation conflicts
6494624 sharemgr needs to support CIFS shares better
6546705 All vnode operations need to pass caller_context_t
6546706 Need VOP_SETATTR/VOP_GETATTR to support new, optional attributes
6546893 Solaris system attribute support
6550962 ZFS ACL inheritance needs to be enhanced to support Automatic Inheritance
6553589 RFE: VFS Feature Registration facility
6553770 RFE: ZFS support for ACL-on-CREATE (PSARC 2007/227)
6565581 ls(1) should support file system attributes proposed in PSARC/2007/315
6566784 NTFS streams are not copied along with the files.
6576205 cp(1), pack(1) and compress(1) should support file system attributes proposed in PSARC/2007/315
6578875 RFE: kernel interfaces for nbmand need improvement
6578883 RFE: VOP_SHRLOCK needs additional access types
6578885 chmod(1) should support file system attributes proposed in PSARC/2007/315
6578886 RFE: disallow nbmand state to change on remount
6583349 ACL parser needs to support audit/alarm ACE types
6590347 tar(1) should support filesystem attributes proposed in PSARC/2007/315
6597357 *tar* xv@ doesn't show the hidden directory even though it is restored
6597360 *tar* should re-init xattr info if openat() fails during extraction of and extended attribute
6597368 *tar* cannot restore hard linked extended attributes
6597374 *tar* doesn't display "x " when hard linked attributes are restored
6597375 *tar* extended attribute header off by one
6614861 *cpio* incorrectly archives extended system attributes with -@
6614896 *pax* incorrectly archives extended system attributes with -@
6615225 *tar* incorrectly archives extended system attributes with -@
6617183 CIFS Service - PSARC 2006/715

1 files changed, 128 insertions, 0 deletions

diff --git a/usr/src/lib/libcmdutils/common/sysattrs.c b/usr/src/lib/libcmdutils/common/sysattrs.c
new file mode 100644
index 0000000000..a22e8e5e21
--- /dev/null
+++ b/usr/src/lib/libcmdutils/common/sysattrs.c
@@ -0,0 +1,128 @@
+/*
+ * CDDL HEADER START
+ *
+ * The contents of this file are subject to the terms of the
+ * Common Development and Distribution License (the "License").
+ * You may not use this file except in compliance with the License.
+ *
+ * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
+ * or http://www.opensolaris.org/os/licensing.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ *
+ * When distributing Covered Code, include this CDDL HEADER in each
+ * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
+ * If applicable, add the following below this CDDL HEADER, with the
+ * fields enclosed by brackets "[]" replaced with your own identifying
+ * information: Portions Copyright [yyyy] [name of copyright owner]
+ *
+ * CDDL HEADER END
+ */
+/*
+ * Copyright 2007 Sun Microsystems, Inc.  All rights reserved.
+ * Use is subject to license terms.
+ */
+
+#pragma ident	"%Z%%M%	%I%	%E% SMI"
+
+#include <c_synonyms.h>
+#include <unistd.h>
+#include <stdlib.h>
+#include <string.h>
+#include <libgen.h>
+#include <attr.h>
+#include <fcntl.h>
+#include <errno.h>
+#include "libcmdutils.h"
+
+/*
+ * Returns the status of attempting to obtain the extended system
+ * attributes in the specified view.
+ *
+ * Note: If obtaining status for an extended attribute file, the caller must
+ * chdir into the hidden directory prior to calling sysattr_status().
+ *
+ * Returns 1 if the extended system attributes were obtained, otherwise
+ * returns 0.
+ */
+int
+sysattr_status(char *file, xattr_view_t view)
+{
+	nvlist_t	*response;
+	int		saveerrno;
+	int		status;
+
+	if (nvlist_alloc(&response, NV_UNIQUE_NAME, 0) != 0) {
+		return (0);
+	}
+
+	status = getattrat(AT_FDCWD, view, file, &response);
+
+	saveerrno = errno;
+	(void) nvlist_free(response);
+	errno = saveerrno;
+
+	return (status == 0);
+}
+
+/*
+ * Returns the type of the specified in file.  If the file name matches
+ * the name of either a read-only or read-write extended system attribute
+ * file then sysattr_type() returns the type of file:
+ * 	return value	file type
+ *	------------	---------
+ *	_RO_SATTR	read-only extended system attribute file
+ *	_RW_SATTR	read-write extended system attribute file
+ *	_NOT_SATTR	neither a read-only or read-write extended system
+ *			attribute file.
+ */
+int
+sysattr_type(char *file)
+{
+	if (file == NULL) {
+		errno = ENOENT;
+		return (_NOT_SATTR);
+	}
+
+	if (strcmp(basename(file), file) != 0) {
+		errno = EINVAL;
+		return (_NOT_SATTR);
+	}
+
+	errno = 0;
+	if (strcmp(file, VIEW_READONLY) == 0) {
+		return (_RO_SATTR);
+	} else if (strcmp(file, VIEW_READWRITE) == 0) {
+		return (_RW_SATTR);
+	} else {
+		return (_NOT_SATTR);
+	}
+}
+
+/*
+ * Call sysattr_support() instead of pathconf(file, _PC_SATTR_ENABLED) or
+ * pathconf(file, _PC_SATTR_EXISTS) so that if pathconf() fails over NFS, we
+ * can still try to figure out if extended system attributes are supported by
+ * testing for a valid extended system attribute file.
+ *
+ * 'name' can have the values _PC_SATTR_ENABLED or _PC_SATTR_EXISTS.
+ *
+ * Returns 1 if the underlying file system supports extended system attributes,
+ * otherwise, returns -1.
+ */
+int
+sysattr_support(char *file, int name)
+{
+	int	rc;
+
+	errno = 0;
+	if ((name != _PC_SATTR_ENABLED) &&
+	    (name != _PC_SATTR_EXISTS)) {
+		errno = EINVAL;
+		return (-1);
+	}
+	if (((rc = pathconf(file, name)) == 1) || (errno != EINVAL)) {
+		return (rc);
+	}
+	return (sysattr_status(file, XATTR_VIEW_READONLY));
+}