1 /* libguestfs - guestfish and guestmount shared option parsing
2 * Copyright (C) 2010 Red Hat Inc.
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License as published by
6 * the Free Software Foundation; either version 2 of the License, or
7 * (at your option) any later version.
9 * This program is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public License for more details.
14 * You should have received a copy of the GNU General Public License
15 * along with this program; if not, write to the Free Software
16 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
31 static void do_decrypt (void);
33 /* Global that saves the root device between inspect_mount and
34 * print_inspect_prompt.
36 static char *root = NULL;
39 free_strings (char **argv)
43 for (argc = 0; argv[argc] != NULL; ++argc)
49 count_strings (char *const *argv)
53 for (c = 0; argv[c]; ++c)
59 compare_keys_len (const void *p1, const void *p2)
61 const char *key1 = * (char * const *) p1;
62 const char *key2 = * (char * const *) p2;
63 return strlen (key1) - strlen (key2);
67 compare_keys (const void *p1, const void *p2)
69 const char *key1 = * (char * const *) p1;
70 const char *key2 = * (char * const *) p2;
71 return strcasecmp (key1, key2);
74 /* This function implements the -i option. */
80 char **roots = guestfs_inspect_os (g);
84 if (roots[0] == NULL) {
85 fprintf (stderr, _("%s: no operating system was found on this disk\n"),
90 if (roots[1] != NULL) {
91 fprintf (stderr, _("%s: multi-boot operating systems are not supported by the -i option\n"),
99 char **mountpoints = guestfs_inspect_get_mountpoints (g, root);
100 if (mountpoints == NULL)
103 /* Sort by key length, shortest key first, so that we end up
104 * mounting the filesystems in the correct order.
106 qsort (mountpoints, count_strings (mountpoints) / 2, 2 * sizeof (char *),
110 for (i = 0; mountpoints[i] != NULL; i += 2) {
113 r = guestfs_mount_options (g, "", mountpoints[i+1], mountpoints[i]);
115 r = guestfs_mount_ro (g, mountpoints[i+1], mountpoints[i]);
120 free_strings (mountpoints);
123 /* This function is called only if the above function was called,
124 * and only after we've printed the prompt in interactive mode.
127 print_inspect_prompt (void)
129 char *name = guestfs_inspect_get_product_name (g, root);
130 if (STRNEQ (name, "unknown"))
131 printf (_("Operating system: %s\n"), name);
134 char **mountpoints = guestfs_inspect_get_mountpoints (g, root);
135 if (mountpoints == NULL)
139 qsort (mountpoints, count_strings (mountpoints) / 2, 2 * sizeof (char *),
143 for (i = 0; mountpoints[i] != NULL; i += 2)
144 printf (_("%s mounted on %s\n"), mountpoints[i+1], mountpoints[i]);
146 free_strings (mountpoints);
149 /* Make a LUKS map name from the partition name,
150 * eg "/dev/vda2" => "luksvda2"
153 make_mapname (const char *device, char *mapname, size_t len)
159 strcpy (mapname, "luks");
163 if (STRPREFIX (device, "/dev/"))
166 for (; device[i] != '\0' && len >= 1; ++i) {
167 if (c_isalnum (device[i])) {
168 *mapname++ = device[i];
176 /* Simple implementation of decryption: look for any crypto_LUKS
177 * partitions and decrypt them, then rescan for VGs. This only works
178 * for Fedora whole-disk encryption. WIP to make this work for other
179 * encryption schemes.
184 char **partitions = guestfs_list_partitions (g);
185 if (partitions == NULL)
190 for (i = 0; partitions[i] != NULL; ++i) {
191 char *type = guestfs_vfs_type (g, partitions[i]);
192 if (type && STREQ (type, "crypto_LUKS")) {
194 make_mapname (partitions[i], mapname, sizeof mapname);
196 char *key = read_key (partitions[i]);
197 /* XXX Should we call guestfs_luks_open_ro if readonly flag
198 * is set? This might break 'mount_ro'.
200 if (guestfs_luks_open (g, partitions[i], key, mapname) == -1)
209 free_strings (partitions);
212 if (guestfs_vgscan (g) == -1)
214 if (guestfs_vg_activate_all (g, 1) == -1)