1 /* 2 * Copyright (c) 2009 The DragonFly Project. All rights reserved. 3 * 4 * This code is derived from software contributed to The DragonFly Project 5 * by Matthew Dillon <dillon@backplane.com> and 6 * Michael Neumann <mneumann@ntecs.de> 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 12 * 1. Redistributions of source code must retain the above copyright 13 * notice, this list of conditions and the following disclaimer. 14 * 2. Redistributions in binary form must reproduce the above copyright 15 * notice, this list of conditions and the following disclaimer in 16 * the documentation and/or other materials provided with the 17 * distribution. 18 * 3. Neither the name of The DragonFly Project nor the names of its 19 * contributors may be used to endorse or promote products derived 20 * from this software without specific, prior written permission. 21 * 22 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 23 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 24 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS 25 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE 26 * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, 27 * INCIDENTAL, SPECIAL, EXEMPLARY OR CONSEQUENTIAL DAMAGES (INCLUDING, 28 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 29 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED 30 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 31 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT 32 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 33 * SUCH DAMAGE. 34 * 35 */ 36 /* 37 * Volume operations: 38 * 39 * - volume-add: Add new volume to HAMMER filesystem 40 * - volume-del: Remove volume from HAMMER filesystem 41 * - volume-list: List volumes making up a HAMMER filesystem 42 * - volume-blkdevs: List volumes making up a HAMMER filesystem 43 * in blkdevs format 44 */ 45 46 #include "hammer.h" 47 48 /* 49 * volume-add <device> <filesystem> 50 */ 51 void 52 hammer_cmd_volume_add(char **av, int ac) 53 { 54 struct hammer_ioc_volume ioc; 55 struct volume_info *vol; 56 int fd; 57 const char *device, *filesystem; 58 59 if (ac != 2) { 60 fprintf(stderr, "hammer volume-add <device> <filesystem>\n"); 61 exit(1); 62 } 63 64 device = av[0]; 65 filesystem = av[1]; 66 67 fd = open(filesystem, O_RDONLY); 68 if (fd < 0) { 69 fprintf(stderr, "hammer volume-add: unable to access %s: %s\n", 70 filesystem, strerror(errno)); 71 exit(1); 72 } 73 74 /* 75 * Initialize and check the device 76 */ 77 vol = init_volume(-1, device, O_RDONLY); 78 assert(vol->vol_no == -1); 79 check_volume(vol); 80 if (strcmp(vol->type, "DEVICE")) { 81 fprintf(stderr, "Not a block device: %s\n", device); 82 exit(1); 83 } 84 close(vol->fd); 85 86 /* 87 * volume-add ioctl 88 */ 89 bzero(&ioc, sizeof(ioc)); 90 strncpy(ioc.device_name, device, MAXPATHLEN); 91 ioc.vol_size = vol->size; 92 ioc.boot_area_size = init_boot_area_size(0, ioc.vol_size); 93 ioc.mem_area_size = init_mem_area_size(0, ioc.vol_size); 94 95 if (ioctl(fd, HAMMERIOC_ADD_VOLUME, &ioc) < 0) { 96 fprintf(stderr, "hammer volume-add ioctl: %s\n", 97 strerror(errno)); 98 exit(1); 99 } 100 101 close(fd); 102 hammer_cmd_volume_list(av + 1, ac - 1); 103 } 104 105 /* 106 * volume-del <device> <filesystem> 107 */ 108 void 109 hammer_cmd_volume_del(char **av, int ac) 110 { 111 struct hammer_ioc_volume ioc; 112 int fd, error, retried = 0; 113 const char *device, *filesystem; 114 115 if (ac != 2) { 116 fprintf(stderr, "hammer volume-del <device> <filesystem>\n"); 117 exit(1); 118 } 119 120 device = av[0]; 121 filesystem = av[1]; 122 123 fd = open(filesystem, O_RDONLY); 124 if (fd < 0) { 125 fprintf(stderr, "hammer volume-del: unable to access %s: %s\n", 126 filesystem, strerror(errno)); 127 exit(1); 128 } 129 130 /* 131 * volume-del ioctl 132 */ 133 bzero(&ioc, sizeof(ioc)); 134 strncpy(ioc.device_name, device, MAXPATHLEN); 135 if (ForceOpt) 136 ioc.flag |= HAMMER_IOC_VOLUME_REBLOCK; 137 retry: 138 if (ioctl(fd, HAMMERIOC_DEL_VOLUME, &ioc) < 0) { 139 error = errno; 140 if ((error == ENOTEMPTY) && (retried++ == 0)) { 141 printf("%s is not empty, ", device); 142 printf("do you want to reblock %s? [y/n]\n", device); 143 fflush(stdout); 144 if (getyn() == 1) { 145 ioc.flag |= HAMMER_IOC_VOLUME_REBLOCK; 146 goto retry; 147 } 148 } 149 fprintf(stderr, "hammer volume-del ioctl: %s\n", 150 strerror(error)); 151 exit(1); 152 } 153 154 close(fd); 155 hammer_cmd_volume_list(av + 1, ac - 1); 156 } 157 158 /* 159 * volume-list <filesystem> 160 */ 161 void 162 hammer_cmd_volume_list(char **av, int ac) 163 { 164 struct hammer_ioc_volume_list ioc; 165 char *device_name; 166 int vol_no, i; 167 168 if (ac < 1) { 169 fprintf(stderr, "hammer volume-list <filesystem>\n"); 170 exit(1); 171 } 172 173 if (hammer_fs_to_vol(av[0], &ioc) == -1) { 174 fprintf(stderr, "hammer volume-list: failed\n"); 175 exit(1); 176 } 177 178 for (i = 0; i < ioc.nvols; i++) { 179 device_name = ioc.vols[i].device_name; 180 vol_no = ioc.vols[i].vol_no; 181 if (VerboseOpt) { 182 printf("%d\t%s%s\n", vol_no, device_name, 183 (vol_no == HAMMER_ROOT_VOLNO ? 184 " (Root Volume)" : "")); 185 } else { 186 printf("%s\n", device_name); 187 } 188 } 189 190 free(ioc.vols); 191 } 192 193 /* 194 * volume-blkdevs <filesystem> 195 */ 196 void 197 hammer_cmd_volume_blkdevs(char **av, int ac) 198 { 199 struct hammer_ioc_volume_list ioc; 200 int i; 201 202 if (ac < 1) { 203 fprintf(stderr, "hammer volume-blkdevs <filesystem>\n"); 204 exit(1); 205 } 206 207 if (hammer_fs_to_vol(av[0], &ioc) == -1) { 208 fprintf(stderr, "hammer volume-list: failed\n"); 209 exit(1); 210 } 211 212 for (i = 0; i < ioc.nvols; i++) { 213 printf("%s", ioc.vols[i].device_name); 214 if (i != ioc.nvols - 1) 215 printf(":"); 216 } 217 printf("\n"); 218 219 free(ioc.vols); 220 } 221