1/*- 2 * Copyright (c) 2004-2005 Pawel Jakub Dawidek <pjd@FreeBSD.org> 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 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. 13 * 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 24 * SUCH DAMAGE. 25 */ 26 27#include <sys/cdefs.h> 28__FBSDID("$FreeBSD$"); 29 30#include <sys/param.h> 31#include <errno.h> 32#include <paths.h> 33#include <stdio.h> 34#include <stdlib.h> 35#include <string.h> 36#include <strings.h> 37#include <assert.h> 38#include <libgeom.h> 39#include <geom/concat/g_concat.h> 40 41#include "core/geom.h" 42#include "misc/subr.h" 43 44 45uint32_t lib_version = G_LIB_VERSION; 46uint32_t version = G_CONCAT_VERSION; 47 48static void concat_main(struct gctl_req *req, unsigned flags); 49static void concat_clear(struct gctl_req *req); 50static void concat_dump(struct gctl_req *req); 51static void concat_label(struct gctl_req *req); 52 53struct g_command class_commands[] = { 54 { "clear", G_FLAG_VERBOSE, concat_main, G_NULL_OPTS, 55 "[-v] prov ..." 56 }, 57 { "create", G_FLAG_VERBOSE | G_FLAG_LOADKLD, NULL, G_NULL_OPTS, 58 "[-v] name prov ..." 59 }, 60 { "destroy", G_FLAG_VERBOSE, NULL, 61 { 62 { 'f', "force", NULL, G_TYPE_BOOL }, 63 G_OPT_SENTINEL 64 }, 65 "[-fv] name ..." 66 }, 67 { "dump", 0, concat_main, G_NULL_OPTS, 68 "prov ..." 69 }, 70 { "label", G_FLAG_VERBOSE | G_FLAG_LOADKLD, concat_main, 71 { 72 { 'h', "hardcode", NULL, G_TYPE_BOOL }, 73 G_OPT_SENTINEL 74 }, 75 "[-hv] name prov ..." 76 }, 77 { "stop", G_FLAG_VERBOSE, NULL, 78 { 79 { 'f', "force", NULL, G_TYPE_BOOL }, 80 G_OPT_SENTINEL 81 }, 82 "[-fv] name ..." 83 }, 84 G_CMD_SENTINEL 85}; 86 87static int verbose = 0; 88 89static void 90concat_main(struct gctl_req *req, unsigned flags) 91{ 92 const char *name; 93 94 if ((flags & G_FLAG_VERBOSE) != 0) 95 verbose = 1; 96 97 name = gctl_get_ascii(req, "verb"); 98 if (name == NULL) { 99 gctl_error(req, "No '%s' argument.", "verb"); 100 return; 101 } 102 if (strcmp(name, "label") == 0) 103 concat_label(req); 104 else if (strcmp(name, "clear") == 0) 105 concat_clear(req); 106 else if (strcmp(name, "dump") == 0) 107 concat_dump(req); 108 else 109 gctl_error(req, "Unknown command: %s.", name); 110} 111 112static void 113concat_label(struct gctl_req *req) 114{ 115 struct g_concat_metadata md; 116 u_char sector[512]; 117 const char *name; 118 int error, i, hardcode, nargs; 119 120 nargs = gctl_get_int(req, "nargs"); 121 if (nargs < 2) { 122 gctl_error(req, "Too few arguments."); 123 return; 124 } 125 hardcode = gctl_get_int(req, "hardcode"); 126 127 /* 128 * Clear last sector first to spoil all components if device exists. 129 */ 130 for (i = 1; i < nargs; i++) { 131 name = gctl_get_ascii(req, "arg%d", i); 132 error = g_metadata_clear(name, NULL); 133 if (error != 0) { 134 gctl_error(req, "Can't store metadata on %s: %s.", name, 135 strerror(error)); 136 return; 137 } 138 } 139 140 strlcpy(md.md_magic, G_CONCAT_MAGIC, sizeof(md.md_magic)); 141 md.md_version = G_CONCAT_VERSION; 142 name = gctl_get_ascii(req, "arg0"); 143 strlcpy(md.md_name, name, sizeof(md.md_name)); 144 md.md_id = arc4random(); 145 md.md_all = nargs - 1; 146 147 /* 148 * Ok, store metadata. 149 */ 150 for (i = 1; i < nargs; i++) { 151 name = gctl_get_ascii(req, "arg%d", i); 152 md.md_no = i - 1; 153 if (!hardcode) 154 bzero(md.md_provider, sizeof(md.md_provider)); 155 else { 156 if (strncmp(name, _PATH_DEV, sizeof(_PATH_DEV) - 1) == 0) 157 name += sizeof(_PATH_DEV) - 1; 158 strlcpy(md.md_provider, name, sizeof(md.md_provider)); 159 } 160 md.md_provsize = g_get_mediasize(name); 161 if (md.md_provsize == 0) { 162 fprintf(stderr, "Can't get mediasize of %s: %s.\n", 163 name, strerror(errno)); 164 gctl_error(req, "Not fully done."); 165 continue; 166 } 167 concat_metadata_encode(&md, sector); 168 error = g_metadata_store(name, sector, sizeof(sector)); 169 if (error != 0) { 170 fprintf(stderr, "Can't store metadata on %s: %s.\n", 171 name, strerror(error)); 172 gctl_error(req, "Not fully done."); 173 continue; 174 } 175 if (verbose) 176 printf("Metadata value stored on %s.\n", name); 177 } 178} 179 180static void 181concat_clear(struct gctl_req *req) 182{ 183 const char *name; 184 int error, i, nargs; 185 186 nargs = gctl_get_int(req, "nargs"); 187 if (nargs < 1) { 188 gctl_error(req, "Too few arguments."); 189 return; 190 } 191 192 for (i = 0; i < nargs; i++) { 193 name = gctl_get_ascii(req, "arg%d", i); 194 error = g_metadata_clear(name, G_CONCAT_MAGIC); 195 if (error != 0) { 196 fprintf(stderr, "Can't clear metadata on %s: %s.\n", 197 name, strerror(error)); 198 gctl_error(req, "Not fully done."); 199 continue; 200 } 201 if (verbose) 202 printf("Metadata cleared on %s.\n", name); 203 } 204} 205 206static void 207concat_metadata_dump(const struct g_concat_metadata *md) 208{ 209 210 printf(" Magic string: %s\n", md->md_magic); 211 printf(" Metadata version: %u\n", (u_int)md->md_version); 212 printf(" Device name: %s\n", md->md_name); 213 printf(" Device ID: %u\n", (u_int)md->md_id); 214 printf(" Disk number: %u\n", (u_int)md->md_no); 215 printf("Total number of disks: %u\n", (u_int)md->md_all); 216 printf(" Hardcoded provider: %s\n", md->md_provider); 217} 218 219static void 220concat_dump(struct gctl_req *req) 221{ 222 struct g_concat_metadata md, tmpmd; 223 const char *name; 224 int error, i, nargs; 225 226 nargs = gctl_get_int(req, "nargs"); 227 if (nargs < 1) { 228 gctl_error(req, "Too few arguments."); 229 return; 230 } 231 232 for (i = 0; i < nargs; i++) { 233 name = gctl_get_ascii(req, "arg%d", i); 234 error = g_metadata_read(name, (u_char *)&tmpmd, sizeof(tmpmd), 235 G_CONCAT_MAGIC); 236 if (error != 0) { 237 fprintf(stderr, "Can't read metadata from %s: %s.\n", 238 name, strerror(error)); 239 gctl_error(req, "Not fully done."); 240 continue; 241 } 242 concat_metadata_decode((u_char *)&tmpmd, &md); 243 printf("Metadata on %s:\n", name); 244 concat_metadata_dump(&md); 245 printf("\n"); 246 } 247} 248