The SPDX folks have obsoleted the BSD-2-Clause-FreeBSD identifier. Catch up to that fact and revert to their recommended match of BSD-2-Clause. Discussed with: pfg MFC After: 3 days Sponsored by: Netflix
268 lines
5.8 KiB
C
268 lines
5.8 KiB
C
/*-
|
|
* SPDX-License-Identifier: BSD-2-Clause
|
|
*
|
|
* Copyright (c) 1999-2002 Robert N. M. Watson
|
|
* All rights reserved.
|
|
*
|
|
* This software was developed by Robert Watson for the TrustedBSD Project.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
|
|
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
|
|
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
|
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
|
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
|
* SUCH DAMAGE.
|
|
*
|
|
* $FreeBSD$
|
|
*/
|
|
/*
|
|
* Developed by the TrustedBSD Project.
|
|
* Support for file system extended attribute.
|
|
*/
|
|
|
|
#include <sys/types.h>
|
|
#include <sys/uio.h>
|
|
#include <sys/extattr.h>
|
|
#include <sys/param.h>
|
|
#include <sys/mount.h>
|
|
|
|
#include <ufs/ufs/extattr.h>
|
|
|
|
#include <errno.h>
|
|
#include <fcntl.h>
|
|
#include <libutil.h>
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
#include <unistd.h>
|
|
|
|
int initattr(int argc, char *argv[]);
|
|
int showattr(int argc, char *argv[]);
|
|
long num_inodes_by_path(char *path);
|
|
void usage(void);
|
|
|
|
void
|
|
usage(void)
|
|
{
|
|
|
|
fprintf(stderr,
|
|
"usage:\n"
|
|
" extattrctl start path\n"
|
|
" extattrctl stop path\n"
|
|
" extattrctl initattr [-f] [-p path] attrsize attrfile\n"
|
|
" extattrctl showattr attrfile\n"
|
|
" extattrctl enable path attrnamespace attrname attrfile\n"
|
|
" extattrctl disable path attrnamespace attrname\n");
|
|
exit(-1);
|
|
}
|
|
|
|
long
|
|
num_inodes_by_path(char *path)
|
|
{
|
|
struct statfs buf;
|
|
int error;
|
|
|
|
error = statfs(path, &buf);
|
|
if (error) {
|
|
perror("statfs");
|
|
return (-1);
|
|
}
|
|
|
|
return (buf.f_files);
|
|
}
|
|
|
|
static const char zero_buf[8192];
|
|
|
|
int
|
|
initattr(int argc, char *argv[])
|
|
{
|
|
struct ufs_extattr_fileheader uef;
|
|
char *fs_path = NULL;
|
|
int ch, i, error, flags;
|
|
ssize_t wlen;
|
|
size_t easize;
|
|
|
|
flags = O_CREAT | O_WRONLY | O_TRUNC | O_EXCL;
|
|
optind = 0;
|
|
while ((ch = getopt(argc, argv, "fp:r:w:")) != -1)
|
|
switch (ch) {
|
|
case 'f':
|
|
flags &= ~O_EXCL;
|
|
break;
|
|
case 'p':
|
|
fs_path = optarg;
|
|
break;
|
|
case '?':
|
|
default:
|
|
usage();
|
|
}
|
|
|
|
argc -= optind;
|
|
argv += optind;
|
|
|
|
if (argc != 2)
|
|
usage();
|
|
|
|
error = 0;
|
|
if ((i = open(argv[1], flags, 0600)) == -1) {
|
|
/* unable to open file */
|
|
perror(argv[1]);
|
|
return (-1);
|
|
}
|
|
uef.uef_magic = UFS_EXTATTR_MAGIC;
|
|
uef.uef_version = UFS_EXTATTR_VERSION;
|
|
uef.uef_size = atoi(argv[0]);
|
|
if (write(i, &uef, sizeof(uef)) == -1)
|
|
error = -1;
|
|
else if (fs_path != NULL) {
|
|
easize = (sizeof uef + uef.uef_size) *
|
|
num_inodes_by_path(fs_path);
|
|
while (easize > 0) {
|
|
if (easize > sizeof zero_buf)
|
|
wlen = write(i, zero_buf, sizeof zero_buf);
|
|
else
|
|
wlen = write(i, zero_buf, easize);
|
|
if (wlen == -1) {
|
|
error = -1;
|
|
break;
|
|
}
|
|
easize -= wlen;
|
|
}
|
|
}
|
|
if (error == -1) {
|
|
perror(argv[1]);
|
|
unlink(argv[1]);
|
|
close(i);
|
|
return (-1);
|
|
}
|
|
|
|
close(i);
|
|
return (0);
|
|
}
|
|
|
|
int
|
|
showattr(int argc, char *argv[])
|
|
{
|
|
struct ufs_extattr_fileheader uef;
|
|
int i, fd;
|
|
|
|
if (argc != 1)
|
|
usage();
|
|
|
|
fd = open(argv[0], O_RDONLY);
|
|
if (fd == -1) {
|
|
perror(argv[0]);
|
|
return (-1);
|
|
}
|
|
|
|
i = read(fd, &uef, sizeof(uef));
|
|
if (i == -1) {
|
|
perror(argv[0]);
|
|
close(fd);
|
|
return (-1);
|
|
}
|
|
if (i != sizeof(uef)) {
|
|
fprintf(stderr, "%s: invalid file header\n", argv[0]);
|
|
close(fd);
|
|
return (-1);
|
|
}
|
|
|
|
if (uef.uef_magic != UFS_EXTATTR_MAGIC) {
|
|
fprintf(stderr, "%s: bad magic\n", argv[0]);
|
|
close(fd);
|
|
return (-1);
|
|
}
|
|
|
|
printf("%s: version %d, size %d\n", argv[0], uef.uef_version,
|
|
uef.uef_size);
|
|
|
|
close(fd);
|
|
return (0);
|
|
}
|
|
|
|
int
|
|
main(int argc, char *argv[])
|
|
{
|
|
int error = 0, attrnamespace;
|
|
|
|
if (argc < 2)
|
|
usage();
|
|
|
|
if (!strcmp(argv[1], "start")) {
|
|
if (argc != 3)
|
|
usage();
|
|
error = extattrctl(argv[2], UFS_EXTATTR_CMD_START, NULL, 0,
|
|
NULL);
|
|
if (error) {
|
|
perror("extattrctl start");
|
|
return (-1);
|
|
}
|
|
} else if (!strcmp(argv[1], "stop")) {
|
|
if (argc != 3)
|
|
usage();
|
|
error = extattrctl(argv[2], UFS_EXTATTR_CMD_STOP, NULL, 0,
|
|
NULL);
|
|
if (error) {
|
|
perror("extattrctl stop");
|
|
return (-1);
|
|
}
|
|
} else if (!strcmp(argv[1], "enable")) {
|
|
if (argc != 6)
|
|
usage();
|
|
error = extattr_string_to_namespace(argv[3], &attrnamespace);
|
|
if (error) {
|
|
perror("extattrctl enable");
|
|
return (-1);
|
|
}
|
|
error = extattrctl(argv[2], UFS_EXTATTR_CMD_ENABLE, argv[5],
|
|
attrnamespace, argv[4]);
|
|
if (error) {
|
|
perror("extattrctl enable");
|
|
return (-1);
|
|
}
|
|
} else if (!strcmp(argv[1], "disable")) {
|
|
if (argc != 5)
|
|
usage();
|
|
error = extattr_string_to_namespace(argv[3], &attrnamespace);
|
|
if (error) {
|
|
perror("extattrctl disable");
|
|
return (-1);
|
|
}
|
|
error = extattrctl(argv[2], UFS_EXTATTR_CMD_DISABLE, NULL,
|
|
attrnamespace, argv[4]);
|
|
if (error) {
|
|
perror("extattrctl disable");
|
|
return (-1);
|
|
}
|
|
} else if (!strcmp(argv[1], "initattr")) {
|
|
argc -= 2;
|
|
argv += 2;
|
|
error = initattr(argc, argv);
|
|
if (error)
|
|
return (-1);
|
|
} else if (!strcmp(argv[1], "showattr")) {
|
|
argc -= 2;
|
|
argv += 2;
|
|
error = showattr(argc, argv);
|
|
if (error)
|
|
return (-1);
|
|
} else
|
|
usage();
|
|
|
|
return (0);
|
|
}
|