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/stripe/g_stripe.h>
42 #include "core/geom.h"
43 #include "misc/subr.h"
46 uint32_t lib_version = G_LIB_VERSION;
47 uint32_t version = G_STRIPE_VERSION;
49 static intmax_t stripesize = 4096;
51 static void stripe_main(struct gctl_req *req, unsigned flags);
52 static void stripe_clear(struct gctl_req *req);
53 static void stripe_dump(struct gctl_req *req);
54 static void stripe_label(struct gctl_req *req);
56 struct g_command class_commands[] = {
57 { "clear", G_FLAG_VERBOSE, stripe_main, G_NULL_OPTS,
60 { "create", G_FLAG_VERBOSE | G_FLAG_LOADKLD, NULL,
62 { 's', "stripesize", &stripesize, G_TYPE_NUMBER },
65 "[-hv] [-s stripesize] name prov prov ..."
67 { "destroy", G_FLAG_VERBOSE, NULL,
69 { 'f', "force", NULL, G_TYPE_NONE },
74 { "dump", 0, stripe_main, G_NULL_OPTS,
77 { "label", G_FLAG_VERBOSE | G_FLAG_LOADKLD, stripe_main,
79 { 'h', "hardcode", NULL, G_TYPE_NONE },
80 { 's', "stripesize", &stripesize, G_TYPE_NUMBER },
83 "[-hv] [-s stripesize] name prov prov ..."
85 { "stop", G_FLAG_VERBOSE, NULL,
87 { 'f', "force", NULL, G_TYPE_NONE },
95 static int verbose = 0;
98 stripe_main(struct gctl_req *req, unsigned flags)
102 if ((flags & G_FLAG_VERBOSE) != 0)
105 name = gctl_get_asciiparam(req, "verb");
107 gctl_error(req, "No '%s' argument.", "verb");
110 if (strcmp(name, "label") == 0)
112 else if (strcmp(name, "clear") == 0)
114 else if (strcmp(name, "dump") == 0)
117 gctl_error(req, "Unknown command: %s.", name);
121 stripe_label(struct gctl_req *req)
123 struct g_stripe_metadata md;
124 intmax_t *stripesizep;
125 off_t compsize, msize;
127 unsigned i, ssize, secsize;
130 int *hardcode, *nargs, error;
132 nargs = gctl_get_paraml(req, "nargs", sizeof(*nargs));
134 gctl_error(req, "No '%s' argument.", "nargs");
138 gctl_error(req, "Too few arguments.");
141 hardcode = gctl_get_paraml(req, "hardcode", sizeof(*hardcode));
142 if (hardcode == NULL) {
143 gctl_error(req, "No '%s' argument.", "hardcode");
148 * Clear last sector first to spoil all components if device exists.
152 for (i = 1; i < (unsigned)*nargs; i++) {
153 snprintf(param, sizeof(param), "arg%u", i);
154 name = gctl_get_asciiparam(req, param);
156 msize = g_get_mediasize(name);
157 ssize = g_get_sectorsize(name);
158 if (msize == 0 || ssize == 0) {
159 gctl_error(req, "Can't get informations about %s: %s.",
160 name, strerror(errno));
164 if (compsize == 0 || (compsize > 0 && msize < compsize))
169 secsize = g_lcm(secsize, ssize);
171 error = g_metadata_clear(name, NULL);
173 gctl_error(req, "Can't store metadata on %s: %s.", name,
179 strlcpy(md.md_magic, G_STRIPE_MAGIC, sizeof(md.md_magic));
180 md.md_version = G_STRIPE_VERSION;
181 name = gctl_get_asciiparam(req, "arg0");
183 gctl_error(req, "No 'arg%u' argument.", 0);
186 strlcpy(md.md_name, name, sizeof(md.md_name));
187 md.md_id = arc4random();
188 md.md_all = *nargs - 1;
189 stripesizep = gctl_get_paraml(req, "stripesize", sizeof(*stripesizep));
190 if (stripesizep == NULL) {
191 gctl_error(req, "No '%s' argument.", "stripesize");
194 if ((*stripesizep % secsize) != 0) {
195 gctl_error(req, "Stripesize should be multiple of %u.",
199 md.md_stripesize = *stripesizep;
202 * Ok, store metadata.
204 for (i = 1; i < (unsigned)*nargs; i++) {
205 snprintf(param, sizeof(param), "arg%u", i);
206 name = gctl_get_asciiparam(req, param);
208 msize = g_get_mediasize(name);
209 ssize = g_get_sectorsize(name);
210 if (compsize < msize - ssize) {
212 "warning: %s: only %jd bytes from %jd bytes used.\n",
213 name, (intmax_t)compsize, (intmax_t)(msize - ssize));
217 md.md_provsize = msize;
219 bzero(md.md_provider, sizeof(md.md_provider));
221 if (strncmp(name, _PATH_DEV, strlen(_PATH_DEV)) == 0)
222 name += strlen(_PATH_DEV);
223 strlcpy(md.md_provider, name, sizeof(md.md_provider));
225 stripe_metadata_encode(&md, sector);
226 error = g_metadata_store(name, sector, sizeof(sector));
228 fprintf(stderr, "Can't store metadata on %s: %s.\n",
229 name, strerror(error));
230 gctl_error(req, "Not fully done.");
234 printf("Metadata value stored on %s.\n", name);
239 stripe_clear(struct gctl_req *req)
246 nargs = gctl_get_paraml(req, "nargs", sizeof(*nargs));
248 gctl_error(req, "No '%s' argument.", "nargs");
252 gctl_error(req, "Too few arguments.");
256 for (i = 0; i < (unsigned)*nargs; i++) {
257 snprintf(param, sizeof(param), "arg%u", i);
258 name = gctl_get_asciiparam(req, param);
260 error = g_metadata_clear(name, G_STRIPE_MAGIC);
262 fprintf(stderr, "Can't clear metadata on %s: %s.\n",
263 name, strerror(error));
264 gctl_error(req, "Not fully done.");
268 printf("Metadata cleared on %s.\n", name);
273 stripe_metadata_dump(const struct g_stripe_metadata *md)
276 printf(" Magic string: %s\n", md->md_magic);
277 printf(" Metadata version: %u\n", (u_int)md->md_version);
278 printf(" Device name: %s\n", md->md_name);
279 printf(" Device ID: %u\n", (u_int)md->md_id);
280 printf(" Disk number: %u\n", (u_int)md->md_no);
281 printf("Total number of disks: %u\n", (u_int)md->md_all);
282 printf(" Stripe size: %u\n", (u_int)md->md_stripesize);
283 printf(" Hardcoded provider: %s\n", md->md_provider);
287 stripe_dump(struct gctl_req *req)
289 struct g_stripe_metadata md, tmpmd;
292 int *nargs, error, i;
294 nargs = gctl_get_paraml(req, "nargs", sizeof(*nargs));
296 gctl_error(req, "No '%s' argument.", "nargs");
300 gctl_error(req, "Too few arguments.");
304 for (i = 0; i < *nargs; i++) {
305 snprintf(param, sizeof(param), "arg%u", i);
306 name = gctl_get_asciiparam(req, param);
308 error = g_metadata_read(name, (u_char *)&tmpmd, sizeof(tmpmd),
311 fprintf(stderr, "Can't read metadata from %s: %s.\n",
312 name, strerror(error));
313 gctl_error(req, "Not fully done.");
316 stripe_metadata_decode((u_char *)&tmpmd, &md);
317 printf("Metadata on %s:\n", name);
318 stripe_metadata_dump(&md);