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, 334 insertions, 0 deletions

diff --git a/usr/src/lib/libcmdutils/common/process_xattrs.c b/usr/src/lib/libcmdutils/common/process_xattrs.c
new file mode 100644
index 0000000000..5c8df946a1
--- /dev/null
+++ b/usr/src/lib/libcmdutils/common/process_xattrs.c
@@ -0,0 +1,334 @@
+/*
+ * 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 "libcmdutils.h"
+
+
+/*
+ * Gets file descriptors of attribute directories for source and target
+ * attribute files
+ */
+int
+get_attrdirs(int indfd, int outdfd, char *attrfile, int *sfd, int *tfd)
+{
+	int	pwdfd;
+	int	fd1;
+	int	fd2;
+
+	pwdfd = open(".", O_RDONLY);
+	if ((pwdfd != -1) && (fchdir(indfd) == 0)) {
+		if ((fd1 = attropen(attrfile, ".", O_RDONLY)) == -1) {
+			(void) fchdir(pwdfd);
+			(void) close(pwdfd);
+			return (1);
+		}
+		*sfd = fd1;
+	} else {
+		(void) fchdir(pwdfd);
+		(void) close(pwdfd);
+		return (1);
+	}
+	if (fchdir(outdfd) == 0) {
+		if ((fd2 = attropen(attrfile, ".", O_RDONLY)) == -1) {
+			(void) fchdir(pwdfd);
+			(void) close(pwdfd);
+			return (1);
+		}
+		*tfd = fd2;
+	} else {
+		(void) fchdir(pwdfd);
+		(void) close(pwdfd);
+		return (1);
+	}
+	(void) fchdir(pwdfd);
+	return (0);
+}
+
+/*
+ * mv_xattrs - Copies the content of the extended attribute files. Then
+ * 	moves the extended system attributes from the input attribute files
+ *      to the target attribute files. Moves the extended system attributes
+ *	from source to the target file. This function returns 0 on success
+ *	and nonzero on error.
+ */
+int
+mv_xattrs(char *cmd, char *infile, char *outfile, int sattr, int silent)
+{
+	int srcfd = -1;
+	int indfd = -1;
+	int outdfd = -1;
+	int tmpfd = -1;
+	int sattrfd = -1;
+	int tattrfd = -1;
+	int asfd = -1;
+	int atfd = -1;
+	DIR *dirp = NULL;
+	struct dirent *dp = NULL;
+	char *etext = NULL;
+	struct stat st1;
+	struct stat st2;
+	nvlist_t *response = NULL;
+	nvlist_t *res = NULL;
+
+	if ((srcfd = open(infile, O_RDONLY)) == -1) {
+		etext = dgettext(TEXT_DOMAIN, "cannot open source");
+		goto error;
+	}
+	if (sattr)
+		response = sysattr_list(cmd, srcfd, infile);
+
+	if ((indfd = openat(srcfd, ".", O_RDONLY|O_XATTR)) == -1) {
+		etext = dgettext(TEXT_DOMAIN, "cannot openat source");
+		goto error;
+	}
+	if ((outdfd = attropen(outfile, ".", O_RDONLY)) == -1) {
+		etext = dgettext(TEXT_DOMAIN, "cannot attropen target");
+		goto error;
+	}
+	if ((tmpfd = dup(indfd)) == -1) {
+		etext = dgettext(TEXT_DOMAIN, "cannot dup descriptor");
+		goto error;
+
+	}
+	if ((dirp = fdopendir(tmpfd)) == NULL) {
+		etext = dgettext(TEXT_DOMAIN, "cannot access source");
+		goto error;
+	}
+	while ((dp = readdir(dirp)) != NULL) {
+		if ((dp->d_name[0] == '.' && dp->d_name[1] == '\0') ||
+		    (dp->d_name[0] == '.' && dp->d_name[1] == '.' &&
+		    dp->d_name[2] == '\0') ||
+		    (sysattr_type(dp->d_name) == _RO_SATTR) ||
+		    (sysattr_type(dp->d_name) == _RW_SATTR))
+			continue;
+
+		if ((sattrfd = openat(indfd, dp->d_name,
+		    O_RDONLY)) == -1) {
+			etext = dgettext(TEXT_DOMAIN,
+			    "cannot open src attribute file");
+			goto error;
+		}
+		if (fstat(sattrfd, &st1) < 0) {
+			etext = dgettext(TEXT_DOMAIN,
+			    "could not stat attribute file");
+			goto error;
+		}
+		if ((tattrfd = openat(outdfd, dp->d_name,
+		    O_RDWR|O_CREAT|O_TRUNC, st1.st_mode)) == -1) {
+			etext = dgettext(TEXT_DOMAIN,
+			    "cannot open target attribute file");
+			goto error;
+		}
+		if (fstat(tattrfd, &st2) < 0) {
+			etext = dgettext(TEXT_DOMAIN,
+			    "could not stat attribute file");
+			goto error;
+		}
+		if (writefile(sattrfd, tattrfd, infile, outfile, dp->d_name,
+		    dp->d_name, &st1, &st2) != 0) {
+			etext = dgettext(TEXT_DOMAIN,
+			    "failed to copy extended attribute "
+			    "from source to target");
+			goto error;
+		}
+
+		errno = 0;
+		if (sattr) {
+			/*
+			 * Gets non default extended system attributes from
+			 * source to copy to target.
+			 */
+			if (dp->d_name != NULL)
+				res = sysattr_list(cmd, sattrfd, dp->d_name);
+
+			if (res != NULL &&
+			    get_attrdirs(indfd, outdfd, dp->d_name, &asfd,
+			    &atfd) != 0) {
+				etext = dgettext(TEXT_DOMAIN,
+				    "Failed to open attribute files");
+				goto error;
+			}
+			/*
+			 * Copy extended system attribute from source
+			 * attribute file to target attribute file
+			 */
+			if (res != NULL &&
+			    (renameat(asfd, VIEW_READWRITE, atfd,
+			    VIEW_READWRITE) != 0)) {
+				if (errno == EPERM)
+					etext = dgettext(TEXT_DOMAIN,
+					    "Permission denied -"
+					    "failed to move system attribute");
+				else
+					etext = dgettext(TEXT_DOMAIN,
+					    "failed to move extended "
+					    "system attribute");
+				goto error;
+			}
+		}
+		if (sattrfd != -1)
+			(void) close(sattrfd);
+		if (tattrfd != -1)
+			(void) close(tattrfd);
+		if (asfd != -1)
+			(void) close(asfd);
+		if (atfd != -1)
+			(void) close(atfd);
+		if (res != NULL) {
+			nvlist_free(res);
+			res = NULL;
+		}
+	}
+	errno = 0;
+	/* Copy extended system attribute from source to target */
+
+	if (response != NULL) {
+		if (renameat(indfd, VIEW_READWRITE, outdfd,
+		    VIEW_READWRITE) == 0)
+			goto done;
+
+		if (errno == EPERM)
+			etext = dgettext(TEXT_DOMAIN, "Permission denied");
+		else
+			etext = dgettext(TEXT_DOMAIN,
+			    "failed to move system attribute");
+	}
+error:
+	if (res != NULL)
+		nvlist_free(res);
+	if (silent == 0 && etext != NULL) {
+		if (!sattr)
+			(void) fprintf(stderr, dgettext(TEXT_DOMAIN,
+			    "%s: %s: cannot move extended attributes, "),
+			    cmd, infile);
+		else
+			(void) fprintf(stderr, dgettext(TEXT_DOMAIN,
+			    "%s: %s: cannot move extended system "
+			    "attributes, "), cmd, infile);
+		perror(etext);
+	}
+done:
+	if (dirp)
+		(void) closedir(dirp);
+	if (sattrfd != -1)
+		(void) close(sattrfd);
+	if (tattrfd != -1)
+		(void) close(tattrfd);
+	if (asfd != -1)
+		(void) close(asfd);
+	if (atfd != -1)
+		(void) close(atfd);
+	if (indfd != -1)
+		(void) close(indfd);
+	if (outdfd != -1)
+		(void) close(outdfd);
+	if (response != NULL)
+		nvlist_free(response);
+	if (etext != NULL)
+		return (1);
+	else
+		return (0);
+}
+
+/*
+ * The function returns non default extended system attribute list
+ * associated with 'fname' and returns NULL when an error has occured
+ * or when only extended system attributes other than archive,
+ * av_modified or crtime are set.
+ *
+ * The function returns system attribute list for the following cases:
+ *
+ *	- any extended system attribute other than the default attributes
+ *	  ('archive', 'av_modified' and 'crtime') is set
+ *	- nvlist has NULL name string
+ *	- nvpair has data type of 'nvlist'
+ *	- default data type.
+ */
+
+nvlist_t *
+sysattr_list(char *cmd, int fd, char *fname)
+{
+	boolean_t	value;
+	data_type_t	type;
+	nvlist_t	*response;
+	nvpair_t	*pair;
+	f_attr_t	fattr;
+	char		*name;
+
+	if (nvlist_alloc(&response, NV_UNIQUE_NAME, 0) != 0) {
+		(void) fprintf(stderr, dgettext(TEXT_DOMAIN,
+		    "%s: %s: nvlist_alloc failed\n"),
+		    cmd, fname);
+		return (NULL);
+	}
+	if (fgetattr(fd, XATTR_VIEW_READWRITE, &response) != 0) {
+		(void) fprintf(stderr, dgettext(TEXT_DOMAIN,
+		    "%s: %s: fgetattr failed\n"),
+		    cmd, fname);
+		nvlist_free(response);
+		return (NULL);
+	}
+	pair = NULL;
+	while ((pair = nvlist_next_nvpair(response, pair)) != NULL) {
+
+		name = nvpair_name(pair);
+
+		if (name != NULL)
+			fattr = name_to_attr(name);
+		else
+			return (response);
+
+		type = nvpair_type(pair);
+		switch (type) {
+			case DATA_TYPE_BOOLEAN_VALUE:
+				if (nvpair_value_boolean_value(pair,
+				    &value) != 0) {
+					(void) fprintf(stderr,
+					    dgettext(TEXT_DOMAIN, "%s "
+					    "nvpair_value_boolean_value "
+					    "failed\n"), cmd);
+					continue;
+				}
+				if (value && fattr != F_ARCHIVE &&
+				    fattr != F_AV_MODIFIED)
+					return (response);
+				break;
+			case DATA_TYPE_UINT64_ARRAY:
+				if (fattr != F_CRTIME)
+					return (response);
+				break;
+			case DATA_TYPE_NVLIST:
+			default:
+				return (response);
+				break;
+		}
+	}
+	if (response != NULL)
+		nvlist_free(response);
+	return (NULL);
+}