2 * Copyright (c) 2006 Ruslan Ermilov <ru@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 AUTHOR 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 AUTHOR 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("$FreeBSD$");
36 #include <geom/cache/g_cache.h>
38 #include "core/geom.h"
39 #include "misc/subr.h"
42 uint32_t lib_version = G_LIB_VERSION;
43 uint32_t version = G_CACHE_VERSION;
45 static intmax_t blocksize_label = 65536;
46 static intmax_t size_label = 100;
47 static intmax_t blocksize_configure = 0;
48 static intmax_t size_configure = 0;
50 static void cache_main(struct gctl_req *req, unsigned flags);
51 static void cache_clear(struct gctl_req *req);
52 static void cache_dump(struct gctl_req *req);
53 static void cache_label(struct gctl_req *req);
55 struct g_command class_commands[] = {
56 { "clear", G_FLAG_VERBOSE, cache_main, G_NULL_OPTS, NULL,
59 { "configure", G_FLAG_VERBOSE, NULL,
61 { 'b', "blocksize", &blocksize_configure, G_TYPE_NUMBER },
62 { 's', "size", &size_configure, G_TYPE_NUMBER },
65 NULL, "[-v] [-b blocksize] [-s size] name"
67 { "create", G_FLAG_VERBOSE | G_FLAG_LOADKLD, NULL,
69 { 'b', "blocksize", &blocksize_label, G_TYPE_NUMBER },
70 { 's', "size", &size_label, G_TYPE_NUMBER },
73 NULL, "[-v] [-b blocksize] [-s size] name prov"
75 { "destroy", G_FLAG_VERBOSE, NULL,
77 { 'f', "force", NULL, G_TYPE_BOOL },
80 NULL, "[-fv] name ..."
82 { "dump", 0, cache_main, G_NULL_OPTS, NULL,
85 { "label", G_FLAG_VERBOSE | G_FLAG_LOADKLD, cache_main,
87 { 'b', "blocksize", &blocksize_label, G_TYPE_NUMBER },
88 { 's', "size", &size_label, G_TYPE_NUMBER },
91 NULL, "[-v] [-b blocksize] [-s size] name prov"
93 { "reset", G_FLAG_VERBOSE, NULL, G_NULL_OPTS, NULL,
96 { "stop", G_FLAG_VERBOSE, NULL,
98 { 'f', "force", NULL, G_TYPE_BOOL },
101 NULL, "[-fv] name ..."
106 static int verbose = 0;
109 cache_main(struct gctl_req *req, unsigned flags)
113 if ((flags & G_FLAG_VERBOSE) != 0)
116 name = gctl_get_ascii(req, "verb");
118 gctl_error(req, "No '%s' argument.", "verb");
121 if (strcmp(name, "label") == 0)
123 else if (strcmp(name, "clear") == 0)
125 else if (strcmp(name, "dump") == 0)
128 gctl_error(req, "Unknown command: %s.", name);
132 cache_label(struct gctl_req *req)
134 struct g_cache_metadata md;
140 nargs = gctl_get_int(req, "nargs");
142 gctl_error(req, "Invalid number of arguments.");
146 strlcpy(md.md_magic, G_CACHE_MAGIC, sizeof(md.md_magic));
147 md.md_version = G_CACHE_VERSION;
148 name = gctl_get_ascii(req, "arg0");
149 strlcpy(md.md_name, name, sizeof(md.md_name));
150 val = gctl_get_intmax(req, "blocksize");
152 val = gctl_get_intmax(req, "size");
155 name = gctl_get_ascii(req, "arg1");
156 md.md_provsize = g_get_mediasize(name);
157 if (md.md_provsize == 0) {
158 fprintf(stderr, "Can't get mediasize of %s: %s.\n",
159 name, strerror(errno));
160 gctl_error(req, "Not fully done.");
163 cache_metadata_encode(&md, sector);
164 error = g_metadata_store(name, sector, sizeof(sector));
166 fprintf(stderr, "Can't store metadata on %s: %s.\n",
167 name, strerror(error));
168 gctl_error(req, "Not fully done.");
172 printf("Metadata value stored on %s.\n", name);
176 cache_clear(struct gctl_req *req)
181 nargs = gctl_get_int(req, "nargs");
183 gctl_error(req, "Too few arguments.");
187 for (i = 0; i < nargs; i++) {
188 name = gctl_get_ascii(req, "arg%d", i);
189 error = g_metadata_clear(name, G_CACHE_MAGIC);
191 fprintf(stderr, "Can't clear metadata on %s: %s.\n",
192 name, strerror(error));
193 gctl_error(req, "Not fully done.");
197 printf("Metadata cleared on %s.\n", name);
202 cache_metadata_dump(const struct g_cache_metadata *md)
205 printf(" Magic string: %s\n", md->md_magic);
206 printf(" Metadata version: %u\n", (u_int)md->md_version);
207 printf(" Device name: %s\n", md->md_name);
208 printf(" Block size: %u\n", (u_int)md->md_bsize);
209 printf(" Cache size: %u\n", (u_int)md->md_size);
210 printf(" Provider size: %ju\n", (uintmax_t)md->md_provsize);
214 cache_dump(struct gctl_req *req)
216 struct g_cache_metadata md, tmpmd;
220 nargs = gctl_get_int(req, "nargs");
222 gctl_error(req, "Too few arguments.");
226 for (i = 0; i < nargs; i++) {
227 name = gctl_get_ascii(req, "arg%d", i);
228 error = g_metadata_read(name, (u_char *)&tmpmd, sizeof(tmpmd),
231 fprintf(stderr, "Can't read metadata from %s: %s.\n",
232 name, strerror(error));
233 gctl_error(req, "Not fully done.");
236 cache_metadata_decode((u_char *)&tmpmd, &md);
237 printf("Metadata on %s:\n", name);
238 cache_metadata_dump(&md);