2 * Copyright (c) 1999-2002 Robert N. M. Watson
5 * This software was developed by Robert Watson for the TrustedBSD Project.
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31 * Developed by the TrustedBSD Project.
32 * Support for file system extended attribute.
35 #include <sys/types.h>
37 #include <sys/extattr.h>
38 #include <sys/param.h>
39 #include <sys/mount.h>
41 #include <ufs/ufs/extattr.h>
51 int initattr(int argc, char *argv[]);
52 int showattr(int argc, char *argv[]);
53 long num_inodes_by_path(char *path);
62 " extattrctl start path\n"
63 " extattrctl stop path\n"
64 " extattrctl initattr [-f] [-p path] attrsize attrfile\n"
65 " extattrctl showattr attrfile\n"
66 " extattrctl enable path attrnamespace attrname attrfile\n"
67 " extattrctl disable path attrnamespace attrname\n");
72 num_inodes_by_path(char *path)
77 error = statfs(path, &buf);
86 static const char zero_buf[8192];
89 initattr(int argc, char *argv[])
91 struct ufs_extattr_fileheader uef;
93 int ch, i, error, flags;
97 flags = O_CREAT | O_WRONLY | O_TRUNC | O_EXCL;
99 while ((ch = getopt(argc, argv, "fp:r:w:")) != -1)
119 if ((i = open(argv[1], flags, 0600)) == -1) {
120 /* unable to open file */
124 uef.uef_magic = UFS_EXTATTR_MAGIC;
125 uef.uef_version = UFS_EXTATTR_VERSION;
126 uef.uef_size = atoi(argv[0]);
127 if (write(i, &uef, sizeof(uef)) == -1)
129 else if (fs_path != NULL) {
130 easize = (sizeof uef + uef.uef_size) *
131 num_inodes_by_path(fs_path);
133 if (easize > sizeof zero_buf)
134 wlen = write(i, zero_buf, sizeof zero_buf);
136 wlen = write(i, zero_buf, easize);
154 showattr(int argc, char *argv[])
156 struct ufs_extattr_fileheader uef;
162 fd = open(argv[0], O_RDONLY);
168 i = read(fd, &uef, sizeof(uef));
173 if (i != sizeof(uef)) {
174 fprintf(stderr, "%s: invalid file header\n", argv[0]);
178 if (uef.uef_magic != UFS_EXTATTR_MAGIC) {
179 fprintf(stderr, "%s: bad magic\n", argv[0]);
183 printf("%s: version %d, size %d\n", argv[0], uef.uef_version,
190 main(int argc, char *argv[])
192 int error = 0, attrnamespace;
197 if (!strcmp(argv[1], "start")) {
200 error = extattrctl(argv[2], UFS_EXTATTR_CMD_START, NULL, 0,
203 perror("extattrctl start");
206 } else if (!strcmp(argv[1], "stop")) {
209 error = extattrctl(argv[2], UFS_EXTATTR_CMD_STOP, NULL, 0,
212 perror("extattrctl stop");
215 } else if (!strcmp(argv[1], "enable")) {
218 error = extattr_string_to_namespace(argv[3], &attrnamespace);
220 perror("extattrctl enable");
223 error = extattrctl(argv[2], UFS_EXTATTR_CMD_ENABLE, argv[5],
224 attrnamespace, argv[4]);
226 perror("extattrctl enable");
229 } else if (!strcmp(argv[1], "disable")) {
232 error = extattr_string_to_namespace(argv[3], &attrnamespace);
234 perror("extattrctl disable");
237 error = extattrctl(argv[2], UFS_EXTATTR_CMD_DISABLE, NULL,
238 attrnamespace, argv[4]);
240 perror("extattrctl disable");
243 } else if (!strcmp(argv[1], "initattr")) {
246 error = initattr(argc, argv);
249 } else if (!strcmp(argv[1], "showattr")) {
252 error = showattr(argc, argv);