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"
72 "\tbectl add (path)*\n"
74 "\tbectl activate [-t] beName\n"
75 "\tbectl create [-r] [-e {nonActiveBe | beName@snapshot}] beName\n"
76 "\tbectl create [-r] beName@snapshot\n"
77 "\tbectl destroy [-F] {beName | beName@snapshot}\n"
78 "\tbectl export sourceBe\n"
79 "\tbectl import targetBe\n"
80 "\tbectl jail {-b | -U} [{-o key=value | -u key}]... "
81 "{jailID | jailName}\n"
82 "\t bootenv [utility [argument ...]]\n"
83 "\tbectl list [-DHas]\n"
84 "\tbectl mount beName [mountpoint]\n"
85 "\tbectl rename origBeName newBeName\n"
86 "\tbectl {ujail | unjail} {jailID | jailName} bootenv\n"
87 "\tbectl {umount | unmount} [-f] beName\n");
89 return (explicit ? 0 : EX_USAGE);
94 * Represents a relationship between the command name and the parser action
97 struct command_map_entry {
99 int (*fn)(int argc, char *argv[]);
102 static struct command_map_entry command_map[] =
104 { "activate", bectl_cmd_activate },
105 { "create", bectl_cmd_create },
106 { "destroy", bectl_cmd_destroy },
107 { "export", bectl_cmd_export },
108 { "import", bectl_cmd_import },
110 { "add", bectl_cmd_add },
112 { "jail", bectl_cmd_jail },
113 { "list", bectl_cmd_list },
114 { "mount", bectl_cmd_mount },
115 { "rename", bectl_cmd_rename },
116 { "unjail", bectl_cmd_unjail },
117 { "unmount", bectl_cmd_unmount },
121 get_cmd_index(const char *cmd, int *idx)
125 map_size = nitems(command_map);
126 for (int i = 0; i < map_size; ++i) {
127 if (strcmp(cmd, command_map[i].command) == 0) {
138 bectl_cmd_activate(int argc, char *argv[])
144 while ((opt = getopt(argc, argv, "t")) != -1) {
150 fprintf(stderr, "bectl activate: unknown option '-%c'\n",
152 return (usage(false));
160 fprintf(stderr, "bectl activate: wrong number of arguments\n");
161 return (usage(false));
165 /* activate logic goes here */
166 if ((err = be_activate(be, argv[0], temp)) != 0)
167 /* XXX TODO: more specific error msg based on err */
168 printf("did not successfully activate boot environment %s\n",
171 printf("successfully activated boot environment %s\n", argv[0]);
174 printf("for next boot\n");
181 * TODO: when only one arg is given, and it contains an "@" the this should
182 * create that snapshot
185 bectl_cmd_create(int argc, char *argv[])
187 char *atpos, *bootenv, *snapname, *source;
193 while ((opt = getopt(argc, argv, "e:r")) != -1) {
202 fprintf(stderr, "bectl create: unknown option '-%c'\n",
204 return (usage(false));
212 fprintf(stderr, "bectl create: wrong number of arguments\n");
213 return (usage(false));
217 if ((atpos = strchr(bootenv, '@')) != NULL) {
219 * This is the "create a snapshot variant". No new boot
220 * environment is to be created here.
223 err = be_snapshot(be, bootenv, atpos, recursive, NULL);
224 } else if (snapname != NULL) {
225 if (strchr(snapname, '@') != NULL)
226 err = be_create_from_existing_snap(be, bootenv,
229 err = be_create_from_existing(be, bootenv, snapname);
231 if ((snapname = strchr(bootenv, '@')) != NULL) {
232 *(snapname++) = '\0';
233 if ((err = be_snapshot(be, be_active_path(be),
234 snapname, true, NULL)) != BE_ERR_SUCCESS)
235 fprintf(stderr, "failed to create snapshot\n");
236 asprintf(&source, "%s@%s", be_active_path(be), snapname);
237 err = be_create_from_existing_snap(be, bootenv,
241 err = be_create(be, bootenv);
250 "failed to create a snapshot '%s' of '%s'\n",
252 else if (snapname == NULL)
254 "failed to create bootenv %s\n", bootenv);
257 "failed to create bootenv %s from snapshot %s\n",
266 bectl_cmd_export(int argc, char *argv[])
271 fprintf(stderr, "bectl export: missing boot environment name\n");
272 return (usage(false));
276 fprintf(stderr, "bectl export: extra arguments provided\n");
277 return (usage(false));
282 if (isatty(STDOUT_FILENO)) {
283 fprintf(stderr, "bectl export: must redirect output\n");
287 be_export(be, bootenv, STDOUT_FILENO);
294 bectl_cmd_import(int argc, char *argv[])
300 fprintf(stderr, "bectl import: missing boot environment name\n");
301 return (usage(false));
305 fprintf(stderr, "bectl import: extra arguments provided\n");
306 return (usage(false));
311 if (isatty(STDIN_FILENO)) {
312 fprintf(stderr, "bectl import: input can not be from terminal\n");
316 err = be_import(be, bootenv, STDIN_FILENO);
323 bectl_cmd_add(int argc, char *argv[])
327 fprintf(stderr, "bectl add: must provide at least one path\n");
328 return (usage(false));
331 for (int i = 1; i < argc; ++i) {
332 printf("arg %d: %s\n", i, argv[i]);
333 /* XXX TODO catch err */
334 be_add_child(be, argv[i], true);
342 bectl_cmd_destroy(int argc, char *argv[])
345 char *origin, *target, targetds[BE_MAXPATHLEN];
349 while ((opt = getopt(argc, argv, "Fo")) != -1) {
352 flags |= BE_DESTROY_FORCE;
355 flags |= BE_DESTROY_ORIGIN;
358 fprintf(stderr, "bectl destroy: unknown option '-%c'\n",
360 return (usage(false));
368 fprintf(stderr, "bectl destroy: wrong number of arguments\n");
369 return (usage(false));
374 /* We'll emit a notice if there's an origin to be cleaned up */
375 if ((flags & BE_DESTROY_ORIGIN) == 0 && strchr(target, '@') == NULL) {
376 if (be_root_concat(be, target, targetds) != 0)
378 if (be_prop_list_alloc(&props) != 0)
380 if (be_get_dataset_props(be, targetds, props) != 0) {
381 be_prop_list_free(props);
384 if (nvlist_lookup_string(props, "origin", &origin) == 0)
385 fprintf(stderr, "bectl destroy: leaving origin '%s' intact\n",
387 be_prop_list_free(props);
391 err = be_destroy(be, target, flags);
397 bectl_cmd_mount(int argc, char *argv[])
399 char result_loc[BE_MAXPATHLEN];
400 char *bootenv, *mountpoint;
403 /* XXX TODO: Allow shallow */
404 mntflags = BE_MNT_DEEP;
406 fprintf(stderr, "bectl mount: missing argument(s)\n");
407 return (usage(false));
411 fprintf(stderr, "bectl mount: too many arguments\n");
412 return (usage(false));
416 mountpoint = ((argc == 3) ? argv[2] : NULL);
418 err = be_mount(be, bootenv, mountpoint, mntflags, result_loc);
422 printf("successfully mounted %s at %s\n", bootenv, result_loc);
426 (argc == 3) ? "failed to mount bootenv %s at %s\n" :
427 "failed to mount bootenv %s at temporary path %s\n",
428 bootenv, mountpoint);
436 bectl_cmd_rename(int argc, char *argv[])
442 fprintf(stderr, "bectl rename: missing argument\n");
443 return (usage(false));
447 fprintf(stderr, "bectl rename: too many arguments\n");
448 return (usage(false));
454 err = be_rename(be, src, dest);
460 fprintf(stderr, "failed to rename bootenv %s to %s\n",
468 bectl_cmd_unmount(int argc, char *argv[])
473 /* Store alias used */
477 while ((opt = getopt(argc, argv, "f")) != -1) {
480 flags |= BE_MNT_FORCE;
483 fprintf(stderr, "bectl %s: unknown option '-%c'\n",
485 return (usage(false));
493 fprintf(stderr, "bectl %s: wrong number of arguments\n", cmd);
494 return (usage(false));
499 err = be_unmount(be, bootenv, flags);
505 fprintf(stderr, "failed to unmount bootenv %s\n", bootenv);
513 main(int argc, char *argv[])
517 int command_index, rc;
521 return (usage(false));
523 if (strcmp(argv[1], "-r") == 0) {
525 return (usage(false));
526 root = strdup(argv[2]);
536 /* Handle command aliases */
537 if (strcmp(command, "umount") == 0)
540 if (strcmp(command, "ujail") == 0)
543 if ((strcmp(command, "-?") == 0) || (strcmp(command, "-h") == 0))
544 return (usage(true));
546 if (get_cmd_index(command, &command_index)) {
547 fprintf(stderr, "unknown command: %s\n", command);
548 return (usage(false));
552 if ((be = libbe_init(root)) == NULL)
555 libbe_print_on_error(be, true);
557 rc = command_map[command_index].fn(argc, argv);