2 * Copyright (c) 2004-2005 Pawel Jakub Dawidek <pjd@FreeBSD.org>
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHORS AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27 #include <sys/cdefs.h>
28 __FBSDID("$FreeBSD$");
30 #include <sys/param.h>
40 #include <geom/shsec/g_shsec.h>
42 #include "core/geom.h"
43 #include "misc/subr.h"
46 uint32_t lib_version = G_LIB_VERSION;
47 uint32_t version = G_SHSEC_VERSION;
49 static void shsec_main(struct gctl_req *req, unsigned flags);
50 static void shsec_clear(struct gctl_req *req);
51 static void shsec_dump(struct gctl_req *req);
52 static void shsec_label(struct gctl_req *req);
54 struct g_command class_commands[] = {
55 { "clear", G_FLAG_VERBOSE, shsec_main, G_NULL_OPTS,
58 { "dump", 0, shsec_main, G_NULL_OPTS,
61 { "label", G_FLAG_VERBOSE | G_FLAG_LOADKLD, shsec_main,
63 { 'h', "hardcode", NULL, G_TYPE_NONE },
66 "[-hv] name prov prov ..."
68 { "stop", G_FLAG_VERBOSE, NULL,
70 { 'f', "force", NULL, G_TYPE_NONE },
78 static int verbose = 0;
81 shsec_main(struct gctl_req *req, unsigned flags)
85 if ((flags & G_FLAG_VERBOSE) != 0)
88 name = gctl_get_asciiparam(req, "verb");
90 gctl_error(req, "No '%s' argument.", "verb");
93 if (strcmp(name, "label") == 0)
95 else if (strcmp(name, "clear") == 0)
97 else if (strcmp(name, "dump") == 0)
100 gctl_error(req, "Unknown command: %s.", name);
104 shsec_label(struct gctl_req *req)
106 struct g_shsec_metadata md;
107 off_t compsize, msize;
109 unsigned i, ssize, secsize;
112 int *hardcode, *nargs, error;
114 nargs = gctl_get_paraml(req, "nargs", sizeof(*nargs));
116 gctl_error(req, "No '%s' argument.", "nargs");
120 gctl_error(req, "Too few arguments.");
123 hardcode = gctl_get_paraml(req, "hardcode", sizeof(*hardcode));
124 if (hardcode == NULL) {
125 gctl_error(req, "No '%s' argument.", "hardcode");
130 * Clear last sector first to spoil all components if device exists.
134 for (i = 1; i < (unsigned)*nargs; i++) {
135 snprintf(param, sizeof(param), "arg%u", i);
136 name = gctl_get_asciiparam(req, param);
138 msize = g_get_mediasize(name);
139 ssize = g_get_sectorsize(name);
140 if (msize == 0 || ssize == 0) {
141 gctl_error(req, "Can't get informations about %s: %s.",
142 name, strerror(errno));
146 if (compsize == 0 || (compsize > 0 && msize < compsize))
151 secsize = g_lcm(secsize, ssize);
153 error = g_metadata_clear(name, NULL);
155 gctl_error(req, "Can't store metadata on %s: %s.", name,
161 strlcpy(md.md_magic, G_SHSEC_MAGIC, sizeof(md.md_magic));
162 md.md_version = G_SHSEC_VERSION;
163 name = gctl_get_asciiparam(req, "arg0");
165 gctl_error(req, "No 'arg%u' argument.", 0);
168 strlcpy(md.md_name, name, sizeof(md.md_name));
169 md.md_id = arc4random();
170 md.md_all = *nargs - 1;
173 * Ok, store metadata.
175 for (i = 1; i < (unsigned)*nargs; i++) {
176 snprintf(param, sizeof(param), "arg%u", i);
177 name = gctl_get_asciiparam(req, param);
179 msize = g_get_mediasize(name);
180 ssize = g_get_sectorsize(name);
181 if (compsize < msize - ssize) {
183 "warning: %s: only %jd bytes from %jd bytes used.\n",
184 name, (intmax_t)compsize, (intmax_t)(msize - ssize));
188 md.md_provsize = msize;
190 bzero(md.md_provider, sizeof(md.md_provider));
192 if (strncmp(name, _PATH_DEV, strlen(_PATH_DEV)) == 0)
193 name += strlen(_PATH_DEV);
194 strlcpy(md.md_provider, name, sizeof(md.md_provider));
196 shsec_metadata_encode(&md, sector);
197 error = g_metadata_store(name, sector, sizeof(sector));
199 fprintf(stderr, "Can't store metadata on %s: %s.\n",
200 name, strerror(error));
201 gctl_error(req, "Not fully done.");
205 printf("Metadata value stored on %s.\n", name);
210 shsec_clear(struct gctl_req *req)
217 nargs = gctl_get_paraml(req, "nargs", sizeof(*nargs));
219 gctl_error(req, "No '%s' argument.", "nargs");
223 gctl_error(req, "Too few arguments.");
227 for (i = 0; i < (unsigned)*nargs; i++) {
228 snprintf(param, sizeof(param), "arg%u", i);
229 name = gctl_get_asciiparam(req, param);
231 error = g_metadata_clear(name, G_SHSEC_MAGIC);
233 fprintf(stderr, "Can't clear metadata on %s: %s.\n",
234 name, strerror(error));
235 gctl_error(req, "Not fully done.");
239 printf("Metadata cleared on %s.\n", name);
244 shsec_metadata_dump(const struct g_shsec_metadata *md)
247 printf(" Magic string: %s\n", md->md_magic);
248 printf(" Metadata version: %u\n", (u_int)md->md_version);
249 printf(" Device name: %s\n", md->md_name);
250 printf(" Device ID: %u\n", (u_int)md->md_id);
251 printf(" Disk number: %u\n", (u_int)md->md_no);
252 printf("Total number of disks: %u\n", (u_int)md->md_all);
253 printf(" Hardcoded provider: %s\n", md->md_provider);
257 shsec_dump(struct gctl_req *req)
259 struct g_shsec_metadata md, tmpmd;
262 int *nargs, error, i;
264 nargs = gctl_get_paraml(req, "nargs", sizeof(*nargs));
266 gctl_error(req, "No '%s' argument.", "nargs");
270 gctl_error(req, "Too few arguments.");
274 for (i = 0; i < *nargs; i++) {
275 snprintf(param, sizeof(param), "arg%u", i);
276 name = gctl_get_asciiparam(req, param);
278 error = g_metadata_read(name, (u_char *)&tmpmd, sizeof(tmpmd),
281 fprintf(stderr, "Can't read metadata from %s: %s.\n",
282 name, strerror(error));
283 gctl_error(req, "Not fully done.");
286 shsec_metadata_decode((u_char *)&tmpmd, &md);
287 printf("Metadata on %s:\n", name);
288 shsec_metadata_dump(&md);