1 /*-
2 * Copyright (c) 2010 Doug Rabson
3 * Copyright (c) 2011 Andriy Gapon
4 * Copyright (c) 2011 Pawel Jakub Dawidek <pawel@dawidek.net>
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
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.
15 *
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
26 * SUCH DAMAGE.
27 */
28
29 #include <sys/param.h>
30 #include <sys/disk.h>
31 #include <sys/queue.h>
32 #include <sys/stat.h>
33 #include <err.h>
34 #include <errno.h>
35 #include <fcntl.h>
36 #include <md5.h>
37 #include <stdint.h>
38 #include <stdio.h>
39 #include <string.h>
40 #include <stdarg.h>
41 #include <stddef.h>
42 #include <stdlib.h>
43 #include <unistd.h>
44
45 #define NBBY 8
46
47 int
pager_output(const char * line)48 pager_output(const char *line)
49 {
50
51 fprintf(stderr, "%s", line);
52 return (0);
53 }
54
55 uint64_t
ldi_get_size(void * priv)56 ldi_get_size(void *priv)
57 {
58 struct stat sb;
59 int fd;
60
61 fd = *(int *)priv;
62 if (fstat(fd, &sb) != 0)
63 return (0);
64 if (S_ISCHR(sb.st_mode) && ioctl(fd, DIOCGMEDIASIZE, &sb.st_size) != 0)
65 return (0);
66 return (sb.st_size);
67 }
68
69 #define ZFS_TEST
70 #define printf(...) fprintf(stderr, __VA_ARGS__)
71 #include "libzfs.h"
72 #include "zfsimpl.c"
73 #undef printf
74
75 static int
vdev_read(vdev_t * vdev,void * priv,off_t off,void * buf,size_t bytes)76 vdev_read(vdev_t *vdev, void *priv, off_t off, void *buf, size_t bytes)
77 {
78 int fd = *(int *)priv;
79
80 if (pread(fd, buf, bytes, off) != bytes)
81 return (-1);
82 return (0);
83 }
84
85 static int
zfs_read(spa_t * spa,dnode_phys_t * dn,void * buf,size_t size,off_t off)86 zfs_read(spa_t *spa, dnode_phys_t *dn, void *buf, size_t size, off_t off)
87 {
88 const znode_phys_t *zp = (const znode_phys_t *) dn->dn_bonus;
89 size_t n;
90 int rc;
91
92 n = size;
93 if (off + n > zp->zp_size)
94 n = zp->zp_size - off;
95
96 rc = dnode_read(spa, dn, off, buf, n);
97 if (rc != 0)
98 return (-rc);
99
100 return (n);
101 }
102
103 int
main(int argc,char ** argv)104 main(int argc, char** argv)
105 {
106 char buf[512], hash[33];
107 MD5_CTX ctx;
108 struct stat sb;
109 struct zfsmount zfsmnt;
110 dnode_phys_t dn;
111 #if 0
112 uint64_t rootobj;
113 #endif
114 spa_t *spa;
115 off_t off;
116 ssize_t n;
117 int i, failures, *fd;
118
119 zfs_init();
120 if (argc == 1) {
121 static char *av[] = {
122 "zfsboottest",
123 "/dev/gpt/system0",
124 "/dev/gpt/system1",
125 "-",
126 "/boot/loader",
127 "/boot/support.4th",
128 "/boot/kernel/kernel",
129 NULL,
130 };
131 argc = sizeof(av) / sizeof(av[0]) - 1;
132 argv = av;
133 }
134 for (i = 1; i < argc; i++) {
135 if (strcmp(argv[i], "-") == 0)
136 break;
137 }
138 fd = malloc(sizeof(fd[0]) * (i - 1));
139 if (fd == NULL)
140 errx(1, "Unable to allocate memory.");
141 for (i = 1; i < argc; i++) {
142 if (strcmp(argv[i], "-") == 0)
143 break;
144 fd[i - 1] = open(argv[i], O_RDONLY);
145 if (fd[i - 1] == -1) {
146 warn("open(%s) failed", argv[i]);
147 continue;
148 }
149 if (vdev_probe(vdev_read, NULL, &fd[i - 1], NULL) != 0) {
150 warnx("vdev_probe(%s) failed", argv[i]);
151 close(fd[i - 1]);
152 }
153 }
154
155 STAILQ_FOREACH(spa, &zfs_pools, spa_link) {
156 if (zfs_spa_init(spa)) {
157 fprintf(stderr, "can't init pool %s\n", spa->spa_name);
158 exit(1);
159 }
160 }
161
162 spa_all_status();
163
164 spa = STAILQ_FIRST(&zfs_pools);
165 if (spa == NULL) {
166 fprintf(stderr, "no pools\n");
167 exit(1);
168 }
169
170 #if 0
171 uint64_t rootobj;
172 if (zfs_get_root(spa, &rootobj)) {
173 fprintf(stderr, "can't get root\n");
174 exit(1);
175 }
176
177 if (zfs_mount(spa, rootobj, &zfsmnt)) {
178 #else
179 if (zfs_mount(spa, 0, &zfsmnt)) {
180 fprintf(stderr, "can't mount\n");
181 exit(1);
182 #endif
183 }
184
185 printf("\n");
186 for (++i, failures = 0; i < argc; i++) {
187 if (zfs_lookup(&zfsmnt, argv[i], &dn)) {
188 fprintf(stderr, "%s: can't lookup\n", argv[i]);
189 failures++;
190 continue;
191 }
192
193 if (zfs_dnode_stat(spa, &dn, &sb)) {
194 fprintf(stderr, "%s: can't stat\n", argv[i]);
195 failures++;
196 continue;
197 }
198
199 off = 0;
200 MD5Init(&ctx);
201 do {
202 n = sb.st_size - off;
203 n = n > sizeof(buf) ? sizeof(buf) : n;
204 n = zfs_read(spa, &dn, buf, n, off);
205 if (n < 0) {
206 fprintf(stderr, "%s: zfs_read failed\n",
207 argv[i]);
208 failures++;
209 break;
210 }
211 MD5Update(&ctx, buf, n);
212 off += n;
213 } while (off < sb.st_size);
214 if (off < sb.st_size)
215 continue;
216 MD5End(&ctx, hash);
217 printf("%s %s\n", hash, argv[i]);
218 }
219
220 return (failures == 0 ? 0 : 1);
221 }
222