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