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(device, O_RDONLY, -1); 78 assert(vol->vol_no == -1); 79 if (strcmp(vol->type, "DEVICE")) { 80 fprintf(stderr, "Not a block device: %s\n", device); 81 exit(1); 82 } 83 close(vol->fd); 84 85 /* 86 * volume-add ioctl 87 */ 88 bzero(&ioc, sizeof(ioc)); 89 strncpy(ioc.device_name, device, MAXPATHLEN); 90 ioc.vol_size = vol->size; 91 ioc.boot_area_size = init_boot_area_size(0, ioc.vol_size); 92 ioc.memory_log_size = init_memory_log_size(0, ioc.vol_size); 93 94 if (ioctl(fd, HAMMERIOC_ADD_VOLUME, &ioc) < 0) { 95 fprintf(stderr, "hammer volume-add ioctl: %s\n", 96 strerror(errno)); 97 exit(1); 98 } 99 100 close(fd); 101 hammer_cmd_volume_list(av + 1, ac - 1); 102 } 103 104 /* 105 * volume-del <device> <filesystem> 106 */ 107 void 108 hammer_cmd_volume_del(char **av, int ac) 109 { 110 struct hammer_ioc_volume ioc; 111 int fd, error, retried = 0; 112 const char *device, *filesystem; 113 114 if (ac != 2) { 115 fprintf(stderr, "hammer volume-del <device> <filesystem>\n"); 116 exit(1); 117 } 118 119 device = av[0]; 120 filesystem = av[1]; 121 122 fd = open(filesystem, O_RDONLY); 123 if (fd < 0) { 124 fprintf(stderr, "hammer volume-del: unable to access %s: %s\n", 125 filesystem, strerror(errno)); 126 exit(1); 127 } 128 129 /* 130 * volume-del ioctl 131 */ 132 bzero(&ioc, sizeof(ioc)); 133 strncpy(ioc.device_name, device, MAXPATHLEN); 134 if (ForceOpt) 135 ioc.flag |= HAMMER_IOC_VOLUME_REBLOCK; 136 retry: 137 if (ioctl(fd, HAMMERIOC_DEL_VOLUME, &ioc) < 0) { 138 error = errno; 139 if ((error == ENOTEMPTY) && (retried++ == 0)) { 140 printf("%s is not empty, ", device); 141 printf("do you want to reblock %s? [y/n]\n", device); 142 fflush(stdout); 143 if (getyn() == 1) { 144 ioc.flag |= HAMMER_IOC_VOLUME_REBLOCK; 145 goto retry; 146 } 147 } 148 fprintf(stderr, "hammer volume-del ioctl: %s\n", 149 strerror(error)); 150 exit(1); 151 } 152 153 close(fd); 154 hammer_cmd_volume_list(av + 1, ac - 1); 155 } 156 157 /* 158 * volume-list <filesystem> 159 */ 160 void 161 hammer_cmd_volume_list(char **av, int ac) 162 { 163 struct hammer_ioc_volume_list ioc; 164 char *device_name; 165 int vol_no, i; 166 167 if (ac < 1) { 168 fprintf(stderr, "hammer volume-list <filesystem>\n"); 169 exit(1); 170 } 171 172 if (hammer_fs_to_vol(av[0], &ioc) == -1) { 173 fprintf(stderr, "hammer volume-list: failed\n"); 174 exit(1); 175 } 176 177 for (i = 0; i < ioc.nvols; i++) { 178 device_name = ioc.vols[i].device_name; 179 vol_no = ioc.vols[i].vol_no; 180 if (VerboseOpt) { 181 printf("%d\t%s%s\n", vol_no, device_name, 182 (vol_no == HAMMER_ROOT_VOLNO ? 183 " (Root Volume)" : "")); 184 } else { 185 printf("%s\n", device_name); 186 } 187 } 188 189 free(ioc.vols); 190 } 191 192 /* 193 * volume-blkdevs <filesystem> 194 */ 195 void 196 hammer_cmd_volume_blkdevs(char **av, int ac) 197 { 198 struct hammer_ioc_volume_list ioc; 199 int i; 200 201 if (ac < 1) { 202 fprintf(stderr, "hammer volume-blkdevs <filesystem>\n"); 203 exit(1); 204 } 205 206 if (hammer_fs_to_vol(av[0], &ioc) == -1) { 207 fprintf(stderr, "hammer volume-list: failed\n"); 208 exit(1); 209 } 210 211 for (i = 0; i < ioc.nvols; i++) { 212 printf("%s", ioc.vols[i].device_name); 213 if (i != ioc.nvols - 1) 214 printf(":"); 215 } 216 printf("\n"); 217 218 free(ioc.vols); 219 } 220