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 58 if (ac != 2) { 59 fprintf(stderr, "hammer volume-add <device> <filesystem>\n"); 60 exit(1); 61 } 62 63 char *device = av[0]; 64 char *filesystem = av[1]; 65 66 fd = open(filesystem, O_RDONLY); 67 if (fd < 0) { 68 fprintf(stderr, "hammer volume-add: unable to access %s: %s\n", 69 filesystem, strerror(errno)); 70 exit(1); 71 } 72 73 /* 74 * Initialize and check the device 75 */ 76 vol = setup_volume(-1, device, 1, O_RDONLY); 77 assert(vol->vol_no == -1); 78 check_volume(vol); 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.mem_area_size = init_mem_area_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 } 102 103 /* 104 * volume-del <device> <filesystem> 105 */ 106 void 107 hammer_cmd_volume_del(char **av, int ac) 108 { 109 struct hammer_ioc_volume ioc; 110 int fd; 111 112 if (ac != 2) { 113 fprintf(stderr, "hammer volume-del <device> <filesystem>\n"); 114 exit(1); 115 } 116 117 118 char *device = av[0]; 119 char *filesystem = av[1]; 120 121 fd = open(filesystem, O_RDONLY); 122 if (fd < 0) { 123 fprintf(stderr, "hammer volume-del: unable to access %s: %s\n", 124 filesystem, strerror(errno)); 125 exit(1); 126 } 127 128 /* 129 * volume-del ioctl 130 */ 131 bzero(&ioc, sizeof(ioc)); 132 strncpy(ioc.device_name, device, MAXPATHLEN); 133 134 if (ioctl(fd, HAMMERIOC_DEL_VOLUME, &ioc) < 0) { 135 fprintf(stderr, "hammer volume-del ioctl: %s\n", 136 strerror(errno)); 137 exit(1); 138 } 139 140 close(fd); 141 } 142 143 static void 144 hammer_print_volumes(char **av, int ac, const char *cmd, const char sep) 145 { 146 struct hammer_ioc_volume_list ioc; 147 int fd; 148 int i; 149 150 if (ac != 1) { 151 fprintf(stderr, "hammer %s <filesystem>\n", cmd); 152 exit(1); 153 } 154 155 char *filesystem = av[0]; 156 157 fd = open(filesystem, O_RDONLY); 158 if (fd < 0) { 159 fprintf(stderr, 160 "hammer %s: unable to access %s: %s\n", 161 cmd, filesystem, strerror(errno)); 162 exit(1); 163 } 164 165 bzero(&ioc, sizeof(ioc)); 166 ioc.vols = malloc(HAMMER_MAX_VOLUMES * 167 sizeof(struct hammer_ioc_volume)); 168 if (ioc.vols == NULL) { 169 fprintf(stderr, 170 "hammer %s: unable to allocate memory: %s\n", 171 cmd, strerror(errno)); 172 exit(1); 173 } 174 ioc.nvols = HAMMER_MAX_VOLUMES; 175 176 if (ioctl(fd, HAMMERIOC_LIST_VOLUMES, &ioc) < 0) { 177 fprintf(stderr, "hammer %s ioctl: %s\n", 178 cmd, strerror(errno)); 179 free(ioc.vols); 180 exit(1); 181 } 182 183 for (i = 0; i < ioc.nvols; i++) { 184 printf("%s", ioc.vols[i].device_name); 185 if (i != ioc.nvols - 1) 186 printf("%c", sep); 187 } 188 printf("\n"); 189 190 free(ioc.vols); 191 close(fd); 192 } 193 194 /* 195 * volume-list <filesystem> 196 */ 197 void 198 hammer_cmd_volume_list(char **av, int ac, const char *cmd) 199 { 200 hammer_print_volumes(av, ac, cmd, '\n'); 201 } 202 203 /* 204 * volume-blkdevs <filesystem> 205 */ 206 void 207 hammer_cmd_volume_blkdevs(char **av, int ac, const char *cmd) 208 { 209 hammer_print_volumes(av, ac, cmd, ':'); 210 } 211