2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
4 * Copyright (c) 2017 Kyle J. Kneitinger <kyle@kneit.in>
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
16 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
29 #include <sys/cdefs.h>
30 __FBSDID("$FreeBSD$");
32 #include <sys/param.h>
33 #include <sys/mount.h>
49 static int bectl_cmd_activate(int argc, char *argv[]);
50 static int bectl_cmd_create(int argc, char *argv[]);
51 static int bectl_cmd_destroy(int argc, char *argv[]);
52 static int bectl_cmd_export(int argc, char *argv[]);
53 static int bectl_cmd_import(int argc, char *argv[]);
55 static int bectl_cmd_add(int argc, char *argv[]);
57 static int bectl_cmd_mount(int argc, char *argv[]);
58 static int bectl_cmd_rename(int argc, char *argv[]);
59 static int bectl_cmd_unmount(int argc, char *argv[]);
68 fp = explicit ? stdout : stderr;
70 "usage:\tbectl ( -h | -? | subcommand [args...] )\n"
71 "\tbectl activate [-t] beName\n"
72 "\tbectl create [-e nonActiveBe | -e beName@snapshot] beName\n"
73 "\tbectl create beName@snapshot\n"
74 "\tbectl destroy [-F] beName | beName@snapshot⟩\n"
75 "\tbectl export sourceBe\n"
76 "\tbectl import targetBe\n"
78 "\tbectl add (path)*\n"
80 "\tbectl jail [ -o key=value | -u key ]... bootenv\n"
81 "\tbectl list [-a] [-D] [-H] [-s]\n"
82 "\tbectl mount beName [mountpoint]\n"
83 "\tbectl rename origBeName newBeName\n"
84 "\tbectl { ujail | unjail } ⟨jailID | jailName | bootenv)\n"
85 "\tbectl { umount | unmount } [-f] beName\n");
87 return (explicit ? 0 : EX_USAGE);
92 * Represents a relationship between the command name and the parser action
95 struct command_map_entry {
97 int (*fn)(int argc, char *argv[]);
100 static struct command_map_entry command_map[] =
102 { "activate", bectl_cmd_activate },
103 { "create", bectl_cmd_create },
104 { "destroy", bectl_cmd_destroy },
105 { "export", bectl_cmd_export },
106 { "import", bectl_cmd_import },
108 { "add", bectl_cmd_add },
110 { "jail", bectl_cmd_jail },
111 { "list", bectl_cmd_list },
112 { "mount", bectl_cmd_mount },
113 { "rename", bectl_cmd_rename },
114 { "unjail", bectl_cmd_unjail },
115 { "unmount", bectl_cmd_unmount },
119 get_cmd_index(const char *cmd, int *idx)
123 map_size = nitems(command_map);
124 for (int i = 0; i < map_size; ++i) {
125 if (strcmp(cmd, command_map[i].command) == 0) {
136 bectl_cmd_activate(int argc, char *argv[])
142 while ((opt = getopt(argc, argv, "t")) != -1) {
148 fprintf(stderr, "bectl activate: unknown option '-%c'\n",
150 return (usage(false));
158 fprintf(stderr, "bectl activate: wrong number of arguments\n");
159 return (usage(false));
163 /* activate logic goes here */
164 if ((err = be_activate(be, argv[0], temp)) != 0)
165 /* XXX TODO: more specific error msg based on err */
166 printf("did not successfully activate boot environment %s\n",
169 printf("successfully activated boot environment %s\n", argv[0]);
172 printf("for next boot\n");
179 * TODO: when only one arg is given, and it contains an "@" the this should
180 * create that snapshot
183 bectl_cmd_create(int argc, char *argv[])
185 char *atpos, *bootenv, *snapname, *source;
191 while ((opt = getopt(argc, argv, "re:")) != -1) {
199 fprintf(stderr, "bectl create: unknown option '-%c'\n",
201 return (usage(false));
209 fprintf(stderr, "bectl create: wrong number of arguments\n");
210 return (usage(false));
214 if ((atpos = strchr(bootenv, '@')) != NULL) {
216 * This is the "create a snapshot variant". No new boot
217 * environment is to be created here.
220 err = be_snapshot(be, bootenv, atpos, recursive, NULL);
221 } else if (snapname != NULL) {
222 if (strchr(snapname, '@') != NULL)
223 err = be_create_from_existing_snap(be, bootenv,
226 err = be_create_from_existing(be, bootenv, snapname);
228 if ((snapname = strchr(bootenv, '@')) != NULL) {
229 *(snapname++) = '\0';
230 if ((err = be_snapshot(be, be_active_path(be),
231 snapname, true, NULL)) != BE_ERR_SUCCESS)
232 fprintf(stderr, "failed to create snapshot\n");
233 asprintf(&source, "%s@%s", be_active_path(be), snapname);
234 err = be_create_from_existing_snap(be, bootenv,
238 err = be_create(be, bootenv);
247 "failed to create a snapshot '%s' of '%s'\n",
249 else if (snapname == NULL)
251 "failed to create bootenv %s\n", bootenv);
254 "failed to create bootenv %s from snapshot %s\n",
263 bectl_cmd_export(int argc, char *argv[])
268 fprintf(stderr, "bectl export: missing boot environment name\n");
269 return (usage(false));
273 fprintf(stderr, "bectl export: extra arguments provided\n");
274 return (usage(false));
279 if (isatty(STDOUT_FILENO)) {
280 fprintf(stderr, "bectl export: must redirect output\n");
284 be_export(be, bootenv, STDOUT_FILENO);
291 bectl_cmd_import(int argc, char *argv[])
297 fprintf(stderr, "bectl import: missing boot environment name\n");
298 return (usage(false));
302 fprintf(stderr, "bectl import: extra arguments provided\n");
303 return (usage(false));
308 if (isatty(STDIN_FILENO)) {
309 fprintf(stderr, "bectl import: input can not be from terminal\n");
313 err = be_import(be, bootenv, STDIN_FILENO);
320 bectl_cmd_add(int argc, char *argv[])
324 fprintf(stderr, "bectl add: must provide at least one path\n");
325 return (usage(false));
328 for (int i = 1; i < argc; ++i) {
329 printf("arg %d: %s\n", i, argv[i]);
330 /* XXX TODO catch err */
331 be_add_child(be, argv[i], true);
339 bectl_cmd_destroy(int argc, char *argv[])
346 while ((opt = getopt(argc, argv, "F")) != -1) {
352 fprintf(stderr, "bectl destroy: unknown option '-%c'\n",
354 return (usage(false));
362 fprintf(stderr, "bectl destroy: wrong number of arguments\n");
363 return (usage(false));
368 err = be_destroy(be, target, force);
374 bectl_cmd_mount(int argc, char *argv[])
376 char result_loc[BE_MAXPATHLEN];
377 char *bootenv, *mountpoint;
381 fprintf(stderr, "bectl mount: missing argument(s)\n");
382 return (usage(false));
386 fprintf(stderr, "bectl mount: too many arguments\n");
387 return (usage(false));
391 mountpoint = ((argc == 3) ? argv[2] : NULL);
393 err = be_mount(be, bootenv, mountpoint, 0, result_loc);
397 printf("successfully mounted %s at %s\n", bootenv, result_loc);
401 (argc == 3) ? "failed to mount bootenv %s at %s\n" :
402 "failed to mount bootenv %s at temporary path %s\n",
403 bootenv, mountpoint);
411 bectl_cmd_rename(int argc, char *argv[])
417 fprintf(stderr, "bectl rename: missing argument\n");
418 return (usage(false));
422 fprintf(stderr, "bectl rename: too many arguments\n");
423 return (usage(false));
429 err = be_rename(be, src, dest);
435 fprintf(stderr, "failed to rename bootenv %s to %s\n",
443 bectl_cmd_unmount(int argc, char *argv[])
448 /* Store alias used */
452 while ((opt = getopt(argc, argv, "f")) != -1) {
455 flags |= BE_MNT_FORCE;
458 fprintf(stderr, "bectl %s: unknown option '-%c'\n",
460 return (usage(false));
468 fprintf(stderr, "bectl %s: wrong number of arguments\n", cmd);
469 return (usage(false));
474 err = be_unmount(be, bootenv, flags);
480 fprintf(stderr, "failed to unmount bootenv %s\n", bootenv);
488 main(int argc, char *argv[])
491 int command_index, rc;
494 fprintf(stderr, "missing command\n");
495 return (usage(false));
500 /* Handle command aliases */
501 if (strcmp(command, "umount") == 0)
504 if (strcmp(command, "ujail") == 0)
507 if ((strcmp(command, "-?") == 0) || (strcmp(command, "-h") == 0))
508 return (usage(true));
510 if (get_cmd_index(command, &command_index)) {
511 fprintf(stderr, "unknown command: %s\n", command);
512 return (usage(false));
516 if ((be = libbe_init()) == NULL)
519 libbe_print_on_error(be, true);
521 /* XXX TODO: can be simplified if offset by 2 instead of one */
522 rc = command_map[command_index].fn(argc-1, argv+1);