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 volume_info_t volume; 56 int fd; 57 const char *device, *filesystem; 58 59 if (ac != 2) { 60 errx(1, "hammer volume-add <device> <filesystem>"); 61 /* not reached */ 62 } 63 64 device = av[0]; 65 filesystem = av[1]; 66 67 fd = open(filesystem, O_RDONLY); 68 if (fd < 0) { 69 err(1, "hammer volume-add: unable to access %s", filesystem); 70 /* not reached */ 71 } 72 73 /* 74 * Initialize and check the device 75 */ 76 volume = init_volume(device, O_RDONLY, -1); 77 assert(volume->vol_no == -1); 78 if (is_regfile(volume)) { 79 errx(1, "Not a block device: %s", device); 80 /* not reached */ 81 } 82 close(volume->fd); 83 84 /* 85 * volume-add ioctl 86 */ 87 bzero(&ioc, sizeof(ioc)); 88 strncpy(ioc.device_name, device, sizeof(ioc.device_name) - 1); 89 ioc.vol_size = volume->size; 90 ioc.boot_area_size = init_boot_area_size(0, ioc.vol_size); 91 ioc.memory_log_size = init_memory_log_size(0, ioc.vol_size); 92 93 if (ioctl(fd, HAMMERIOC_ADD_VOLUME, &ioc) < 0) { 94 err(1, "hammer volume-add ioctl"); 95 /* not reached */ 96 } 97 98 close(fd); 99 hammer_cmd_volume_list(av + 1, ac - 1); 100 } 101 102 /* 103 * volume-del <device> <filesystem> 104 */ 105 void 106 hammer_cmd_volume_del(char **av, int ac) 107 { 108 struct hammer_ioc_volume ioc; 109 int fd, retried = 0; 110 const char *device, *filesystem; 111 112 if (ac != 2) { 113 errx(1, "hammer volume-del <device> <filesystem>"); 114 /* not reached */ 115 } 116 117 device = av[0]; 118 filesystem = av[1]; 119 120 fd = open(filesystem, O_RDONLY); 121 if (fd < 0) { 122 err(1, "hammer volume-del: unable to access %s", filesystem); 123 /* not reached */ 124 } 125 126 /* 127 * volume-del ioctl 128 */ 129 bzero(&ioc, sizeof(ioc)); 130 strncpy(ioc.device_name, device, sizeof(ioc.device_name) - 1); 131 if (ForceOpt) 132 ioc.flag |= HAMMER_IOC_VOLUME_REBLOCK; 133 retry: 134 if (ioctl(fd, HAMMERIOC_DEL_VOLUME, &ioc) < 0) { 135 if ((errno == ENOTEMPTY) && (retried++ == 0)) { 136 printf("%s is not empty, ", device); 137 printf("do you want to reblock %s? [y/n] ", device); 138 fflush(stdout); 139 if (getyn() == 1) { 140 ioc.flag |= HAMMER_IOC_VOLUME_REBLOCK; 141 goto retry; 142 } 143 } 144 err(1, "hammer volume-del ioctl"); 145 /* not reached */ 146 } 147 148 close(fd); 149 hammer_cmd_volume_list(av + 1, ac - 1); 150 } 151 152 /* 153 * volume-list <filesystem> 154 */ 155 void 156 hammer_cmd_volume_list(char **av, int ac) 157 { 158 struct hammer_ioc_volume_list ioc; 159 char *device_name; 160 int vol_no, i; 161 162 if (ac < 1) { 163 errx(1, "hammer volume-list <filesystem>"); 164 /* not reached */ 165 } 166 167 if (hammer_fs_to_vol(av[0], &ioc) == -1) { 168 errx(1, "hammer volume-list: failed"); 169 /* not reached */ 170 } 171 172 for (i = 0; i < ioc.nvols; i++) { 173 device_name = ioc.vols[i].device_name; 174 vol_no = ioc.vols[i].vol_no; 175 if (VerboseOpt) { 176 printf("%d\t%s%s\n", vol_no, device_name, 177 (vol_no == HAMMER_ROOT_VOLNO ? 178 " (Root Volume)" : "")); 179 } else { 180 printf("%s\n", device_name); 181 } 182 } 183 184 free(ioc.vols); 185 } 186 187 /* 188 * volume-blkdevs <filesystem> 189 */ 190 void 191 hammer_cmd_volume_blkdevs(char **av, int ac) 192 { 193 struct hammer_ioc_volume_list ioc; 194 int i; 195 196 if (ac < 1) { 197 errx(1, "hammer volume-blkdevs <filesystem>"); 198 /* not reached */ 199 } 200 201 if (hammer_fs_to_vol(av[0], &ioc) == -1) { 202 errx(1, "hammer volume-list: failed"); 203 /* not reached */ 204 } 205 206 for (i = 0; i < ioc.nvols; i++) { 207 printf("%s", ioc.vols[i].device_name); 208 if (i != ioc.nvols - 1) 209 printf(":"); 210 } 211 printf("\n"); 212 213 free(ioc.vols); 214 } 215