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
hammer_cmd_volume_add(char ** av,int ac)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
hammer_cmd_volume_del(char ** av,int ac)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
hammer_cmd_volume_list(char ** av,int ac)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
hammer_cmd_volume_blkdevs(char ** av,int ac)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