1 /*- 2 * SPDX-License-Identifier: BSD-2-Clause 3 * 4 * Copyright (c) 2004-2005 Pawel Jakub Dawidek <pjd@FreeBSD.org> 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 AUTHORS 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 AUTHORS 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/cdefs.h> 30 __FBSDID("$FreeBSD$"); 31 32 #include <sys/param.h> 33 #include <errno.h> 34 #include <paths.h> 35 #include <stdio.h> 36 #include <stdlib.h> 37 #include <string.h> 38 #include <strings.h> 39 #include <assert.h> 40 #include <libgeom.h> 41 #include <geom/concat/g_concat.h> 42 43 #include "core/geom.h" 44 #include "misc/subr.h" 45 46 47 uint32_t lib_version = G_LIB_VERSION; 48 uint32_t version = G_CONCAT_VERSION; 49 50 static void concat_main(struct gctl_req *req, unsigned flags); 51 static void concat_clear(struct gctl_req *req); 52 static void concat_dump(struct gctl_req *req); 53 static void concat_label(struct gctl_req *req); 54 55 struct g_command class_commands[] = { 56 { "append", G_FLAG_VERBOSE, NULL, 57 { 58 { 'h', "hardcode", NULL, G_TYPE_BOOL }, 59 G_OPT_SENTINEL 60 }, 61 "[-hv] name prov" 62 }, 63 { "clear", G_FLAG_VERBOSE, concat_main, G_NULL_OPTS, 64 "[-v] prov ..." 65 }, 66 { "create", G_FLAG_VERBOSE | G_FLAG_LOADKLD, NULL, G_NULL_OPTS, 67 "[-v] name prov ..." 68 }, 69 { "destroy", G_FLAG_VERBOSE, NULL, 70 { 71 { 'f', "force", NULL, G_TYPE_BOOL }, 72 G_OPT_SENTINEL 73 }, 74 "[-fv] name ..." 75 }, 76 { "dump", 0, concat_main, G_NULL_OPTS, 77 "prov ..." 78 }, 79 { "label", G_FLAG_VERBOSE | G_FLAG_LOADKLD, concat_main, 80 { 81 { 'h', "hardcode", NULL, G_TYPE_BOOL }, 82 G_OPT_SENTINEL 83 }, 84 "[-hv] name prov ..." 85 }, 86 { "stop", G_FLAG_VERBOSE, NULL, 87 { 88 { 'f', "force", NULL, G_TYPE_BOOL }, 89 G_OPT_SENTINEL 90 }, 91 "[-fv] name ..." 92 }, 93 G_CMD_SENTINEL 94 }; 95 96 static int verbose = 0; 97 98 static void 99 concat_main(struct gctl_req *req, unsigned flags) 100 { 101 const char *name; 102 103 if ((flags & G_FLAG_VERBOSE) != 0) 104 verbose = 1; 105 106 name = gctl_get_ascii(req, "verb"); 107 if (name == NULL) { 108 gctl_error(req, "No '%s' argument.", "verb"); 109 return; 110 } 111 if (strcmp(name, "label") == 0) 112 concat_label(req); 113 else if (strcmp(name, "clear") == 0) 114 concat_clear(req); 115 else if (strcmp(name, "dump") == 0) 116 concat_dump(req); 117 else 118 gctl_error(req, "Unknown command: %s.", name); 119 } 120 121 static void 122 concat_label(struct gctl_req *req) 123 { 124 struct g_concat_metadata md; 125 u_char sector[512]; 126 const char *name; 127 int error, i, hardcode, nargs; 128 129 bzero(sector, sizeof(sector)); 130 nargs = gctl_get_int(req, "nargs"); 131 if (nargs < 2) { 132 gctl_error(req, "Too few arguments."); 133 return; 134 } 135 hardcode = gctl_get_int(req, "hardcode"); 136 137 /* 138 * Clear last sector first to spoil all components if device exists. 139 */ 140 for (i = 1; i < nargs; i++) { 141 name = gctl_get_ascii(req, "arg%d", i); 142 error = g_metadata_clear(name, NULL); 143 if (error != 0) { 144 gctl_error(req, "Can't store metadata on %s: %s.", name, 145 strerror(error)); 146 return; 147 } 148 } 149 150 strlcpy(md.md_magic, G_CONCAT_MAGIC, sizeof(md.md_magic)); 151 md.md_version = G_CONCAT_VERSION; 152 name = gctl_get_ascii(req, "arg0"); 153 strlcpy(md.md_name, name, sizeof(md.md_name)); 154 md.md_id = arc4random(); 155 md.md_all = nargs - 1; 156 157 /* 158 * Ok, store metadata. 159 */ 160 for (i = 1; i < nargs; i++) { 161 name = gctl_get_ascii(req, "arg%d", i); 162 md.md_no = i - 1; 163 if (!hardcode) 164 bzero(md.md_provider, sizeof(md.md_provider)); 165 else { 166 if (strncmp(name, _PATH_DEV, sizeof(_PATH_DEV) - 1) == 0) 167 name += sizeof(_PATH_DEV) - 1; 168 strlcpy(md.md_provider, name, sizeof(md.md_provider)); 169 } 170 md.md_provsize = g_get_mediasize(name); 171 if (md.md_provsize == 0) { 172 fprintf(stderr, "Can't get mediasize of %s: %s.\n", 173 name, strerror(errno)); 174 gctl_error(req, "Not fully done."); 175 continue; 176 } 177 concat_metadata_encode(&md, sector); 178 error = g_metadata_store(name, sector, sizeof(sector)); 179 if (error != 0) { 180 fprintf(stderr, "Can't store metadata on %s: %s.\n", 181 name, strerror(error)); 182 gctl_error(req, "Not fully done."); 183 continue; 184 } 185 if (verbose) 186 printf("Metadata value stored on %s.\n", name); 187 } 188 } 189 190 static void 191 concat_clear(struct gctl_req *req) 192 { 193 const char *name; 194 int error, i, nargs; 195 196 nargs = gctl_get_int(req, "nargs"); 197 if (nargs < 1) { 198 gctl_error(req, "Too few arguments."); 199 return; 200 } 201 202 for (i = 0; i < nargs; i++) { 203 name = gctl_get_ascii(req, "arg%d", i); 204 error = g_metadata_clear(name, G_CONCAT_MAGIC); 205 if (error != 0) { 206 fprintf(stderr, "Can't clear metadata on %s: %s.\n", 207 name, strerror(error)); 208 gctl_error(req, "Not fully done."); 209 continue; 210 } 211 if (verbose) 212 printf("Metadata cleared on %s.\n", name); 213 } 214 } 215 216 static void 217 concat_metadata_dump(const struct g_concat_metadata *md) 218 { 219 220 printf(" Magic string: %s\n", md->md_magic); 221 printf(" Metadata version: %u\n", (u_int)md->md_version); 222 printf(" Device name: %s\n", md->md_name); 223 printf(" Device ID: %u\n", (u_int)md->md_id); 224 printf(" Disk number: %u\n", (u_int)md->md_no); 225 printf("Total number of disks: %u\n", (u_int)md->md_all); 226 printf(" Hardcoded provider: %s\n", md->md_provider); 227 } 228 229 static void 230 concat_dump(struct gctl_req *req) 231 { 232 struct g_concat_metadata md, tmpmd; 233 const char *name; 234 int error, i, nargs; 235 236 nargs = gctl_get_int(req, "nargs"); 237 if (nargs < 1) { 238 gctl_error(req, "Too few arguments."); 239 return; 240 } 241 242 for (i = 0; i < nargs; i++) { 243 name = gctl_get_ascii(req, "arg%d", i); 244 error = g_metadata_read(name, (u_char *)&tmpmd, sizeof(tmpmd), 245 G_CONCAT_MAGIC); 246 if (error != 0) { 247 fprintf(stderr, "Can't read metadata from %s: %s.\n", 248 name, strerror(error)); 249 gctl_error(req, "Not fully done."); 250 continue; 251 } 252 concat_metadata_decode((u_char *)&tmpmd, &md); 253 printf("Metadata on %s:\n", name); 254 concat_metadata_dump(&md); 255 printf("\n"); 256 } 257 } 258