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portable: fix memleak
[thirdparty/systemd.git] / src / portable / portablectl.c
1 /* SPDX-License-Identifier: LGPL-2.1+ */
2
3 #include <errno.h>
4 #include <getopt.h>
5
6 #include "sd-bus.h"
7
8 #include "alloc-util.h"
9 #include "bus-error.h"
10 #include "bus-util.h"
11 #include "def.h"
12 #include "dirent-util.h"
13 #include "fd-util.h"
14 #include "fileio.h"
15 #include "format-table.h"
16 #include "fs-util.h"
17 #include "locale-util.h"
18 #include "machine-image.h"
19 #include "pager.h"
20 #include "parse-util.h"
21 #include "path-util.h"
22 #include "spawn-polkit-agent.h"
23 #include "string-util.h"
24 #include "strv.h"
25 #include "terminal-util.h"
26 #include "verbs.h"
27
28 static bool arg_no_pager = false;
29 static bool arg_legend = true;
30 static bool arg_ask_password = true;
31 static bool arg_quiet = false;
32 static const char *arg_profile = "default";
33 static const char* arg_copy_mode = NULL;
34 static bool arg_runtime = false;
35 static bool arg_reload = true;
36 static bool arg_cat = false;
37 static BusTransport arg_transport = BUS_TRANSPORT_LOCAL;
38 static char *arg_host = NULL;
39
40 static int determine_image(const char *image, bool permit_non_existing, char **ret) {
41 int r;
42
43 /* If the specified name is a valid image name, we pass it as-is to portabled, which will search for it in the
44 * usual search directories. Otherwise we presume it's a path, and will normalize it on the client's side
45 * (among other things, to make the path independent of the client's working directory) before passing it
46 * over. */
47
48 if (image_name_is_valid(image)) {
49 char *c;
50
51 if (!arg_quiet && laccess(image, F_OK) >= 0)
52 log_warning("Ambiguous invocation: current working directory contains file matching non-path argument '%s', ignoring. "
53 "Prefix argument with './' to force reference to file in current working directory.", image);
54
55 c = strdup(image);
56 if (!c)
57 return log_oom();
58
59 *ret = c;
60 return 0;
61 }
62
63 if (arg_transport != BUS_TRANSPORT_LOCAL) {
64 log_error("Operations on images by path not supported when connecting to remote systems.");
65 return -EOPNOTSUPP;
66 }
67
68 r = chase_symlinks(image, NULL, CHASE_TRAIL_SLASH | (permit_non_existing ? CHASE_NONEXISTENT : 0), ret);
69 if (r < 0)
70 return log_error_errno(r, "Cannot normalize specified image path '%s': %m", image);
71
72 return 0;
73 }
74
75 static int extract_prefix(const char *path, char **ret) {
76 _cleanup_free_ char *name = NULL;
77 const char *bn, *underscore;
78 size_t m;
79
80 bn = basename(path);
81
82 underscore = strchr(bn, '_');
83 if (underscore)
84 m = underscore - bn;
85 else {
86 const char *e;
87
88 e = endswith(bn, ".raw");
89 if (!e)
90 e = strchr(bn, 0);
91
92 m = e - bn;
93 }
94
95 name = strndup(bn, m);
96 if (!name)
97 return -ENOMEM;
98
99 /* A slightly reduced version of what's permitted in unit names. With ':' and '\' are removed, as well as '_'
100 * which we use as delimiter for the second part of the image string, which we ignore for now. */
101 if (!in_charset(name, DIGITS LETTERS "-."))
102 return -EINVAL;
103
104 if (!filename_is_valid(name))
105 return -EINVAL;
106
107 *ret = name;
108 name = NULL;
109
110 return 0;
111 }
112
113 static int determine_matches(const char *image, char **l, bool allow_any, char ***ret) {
114 _cleanup_strv_free_ char **k = NULL;
115 int r;
116
117 /* Determine the matches to apply. If the list is empty we derive the match from the image name. If the list
118 * contains exactly the "-" we return a wildcard list (which is the empty list), but only if this is expressly
119 * permitted. */
120
121 if (strv_isempty(l)) {
122 char *prefix;
123
124 r = extract_prefix(image, &prefix);
125 if (r < 0)
126 return log_error_errno(r, "Failed to extract prefix of image name '%s': %m", image);
127
128 if (!arg_quiet)
129 log_info("(Matching unit files with prefix '%s'.)", prefix);
130
131 r = strv_consume(&k, prefix);
132 if (r < 0)
133 return log_oom();
134
135 } else if (strv_equal(l, STRV_MAKE("-"))) {
136
137 if (!allow_any) {
138 log_error("Refusing all unit file match.");
139 return -EINVAL;
140 }
141
142 if (!arg_quiet)
143 log_info("(Matching all unit files.)");
144 } else {
145 _cleanup_free_ char *joined = NULL;
146
147 k = strv_copy(l);
148 if (!k)
149 return log_oom();
150
151 joined = strv_join(k, "', '");
152 if (!joined)
153 return log_oom();
154
155 if (!arg_quiet)
156 log_info("(Matching unit files with prefixes '%s'.)", joined);
157 }
158
159 *ret = TAKE_PTR(k);
160
161 return 0;
162 }
163
164 static int acquire_bus(sd_bus **bus) {
165 int r;
166
167 assert(bus);
168
169 if (*bus)
170 return 0;
171
172 r = bus_connect_transport(arg_transport, arg_host, false, bus);
173 if (r < 0)
174 return log_error_errno(r, "Failed to connect to bus: %m");
175
176 (void) sd_bus_set_allow_interactive_authorization(*bus, arg_ask_password);
177
178 return 0;
179 }
180
181 static int maybe_reload(sd_bus **bus) {
182 _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
183 _cleanup_(sd_bus_message_unrefp) sd_bus_message *m = NULL;
184 int r;
185
186 if (!arg_reload)
187 return 0;
188
189 r = acquire_bus(bus);
190 if (r < 0)
191 return r;
192
193 r = sd_bus_message_new_method_call(
194 *bus,
195 &m,
196 "org.freedesktop.systemd1",
197 "/org/freedesktop/systemd1",
198 "org.freedesktop.systemd1.Manager",
199 "Reload");
200 if (r < 0)
201 return bus_log_create_error(r);
202
203 /* Reloading the daemon may take long, hence set a longer timeout here */
204 r = sd_bus_call(*bus, m, DEFAULT_TIMEOUT_USEC * 2, &error, NULL);
205 if (r < 0)
206 return log_error_errno(r, "Failed to reload daemon: %s", bus_error_message(&error, r));
207
208 return 0;
209 }
210
211 static int inspect_image(int argc, char *argv[], void *userdata) {
212 _cleanup_(sd_bus_message_unrefp) sd_bus_message *m = NULL, *reply = NULL;
213 _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
214 _cleanup_(sd_bus_flush_close_unrefp) sd_bus *bus = NULL;
215 _cleanup_strv_free_ char **matches = NULL;
216 _cleanup_free_ char *image = NULL;
217 bool nl = false, header = false;
218 const void *data;
219 const char *path;
220 size_t sz;
221 int r;
222
223 r = determine_image(argv[1], false, &image);
224 if (r < 0)
225 return r;
226
227 r = determine_matches(argv[1], argv + 2, true, &matches);
228 if (r < 0)
229 return r;
230
231 r = acquire_bus(&bus);
232 if (r < 0)
233 return r;
234
235 r = sd_bus_message_new_method_call(
236 bus,
237 &m,
238 "org.freedesktop.portable1",
239 "/org/freedesktop/portable1",
240 "org.freedesktop.portable1.Manager",
241 "GetImageMetadata");
242 if (r < 0)
243 return bus_log_create_error(r);
244
245 r = sd_bus_message_append(m, "s", image);
246 if (r < 0)
247 return bus_log_create_error(r);
248
249 r = sd_bus_message_append_strv(m, matches);
250 if (r < 0)
251 return bus_log_create_error(r);
252
253 r = sd_bus_call(bus, m, 0, &error, &reply);
254 if (r < 0)
255 return log_error_errno(r, "Failed to inspect image metadata: %s", bus_error_message(&error, r));
256
257 r = sd_bus_message_read(reply, "s", &path);
258 if (r < 0)
259 return bus_log_parse_error(r);
260
261 r = sd_bus_message_read_array(reply, 'y', &data, &sz);
262 if (r < 0)
263 return bus_log_parse_error(r);
264
265 (void) pager_open(arg_no_pager, false);
266
267 if (arg_cat) {
268 printf("%s-- OS Release: --%s\n", ansi_highlight(), ansi_normal());
269 fwrite(data, sz, 1, stdout);
270 fflush(stdout);
271 nl = true;
272 } else {
273 _cleanup_free_ char *pretty_portable = NULL, *pretty_os = NULL;
274
275 _cleanup_fclose_ FILE *f;
276
277 f = fmemopen((void*) data, sz, "re");
278 if (!f)
279 return log_error_errno(errno, "Failed to open /etc/os-release buffer: %m");
280
281 r = parse_env_file(f, "/etc/os-release", NEWLINE,
282 "PORTABLE_PRETTY_NAME", &pretty_portable,
283 "PRETTY_NAME", &pretty_os,
284 NULL);
285 if (r < 0)
286 return log_error_errno(r, "Failed to parse /etc/os-release: %m");
287
288 printf("Image:\n\t%s\n"
289 "Portable Service:\n\t%s\n"
290 "Operating System:\n\t%s\n",
291 path,
292 strna(pretty_portable),
293 strna(pretty_os));
294 }
295
296 r = sd_bus_message_enter_container(reply, 'a', "{say}");
297 if (r < 0)
298 return bus_log_parse_error(r);
299
300 for (;;) {
301 const char *name;
302
303 r = sd_bus_message_enter_container(reply, 'e', "say");
304 if (r < 0)
305 return bus_log_parse_error(r);
306 if (r == 0)
307 break;
308
309 r = sd_bus_message_read(reply, "s", &name);
310 if (r < 0)
311 return bus_log_parse_error(r);
312
313 r = sd_bus_message_read_array(reply, 'y', &data, &sz);
314 if (r < 0)
315 return bus_log_parse_error(r);
316
317 if (arg_cat) {
318 if (nl)
319 fputc('\n', stdout);
320
321 printf("%s-- Unit file: %s --%s\n", ansi_highlight(), name, ansi_normal());
322 fwrite(data, sz, 1, stdout);
323 fflush(stdout);
324 nl = true;
325 } else {
326 if (!header) {
327 fputs("Unit files:\n", stdout);
328 header = true;
329 }
330
331 fputc('\t', stdout);
332 fputs(name, stdout);
333 fputc('\n', stdout);
334 }
335
336 r = sd_bus_message_exit_container(reply);
337 if (r < 0)
338 return bus_log_parse_error(r);
339 }
340
341 r = sd_bus_message_exit_container(reply);
342 if (r < 0)
343 return bus_log_parse_error(r);
344
345 return 0;
346 }
347
348 static int print_changes(sd_bus_message *m) {
349 int r;
350
351 if (arg_quiet)
352 return 0;
353
354 r = sd_bus_message_enter_container(m, 'a', "(sss)");
355 if (r < 0)
356 return bus_log_parse_error(r);
357
358 for (;;) {
359 const char *type, *path, *source;
360
361 r = sd_bus_message_read(m, "(sss)", &type, &path, &source);
362 if (r < 0)
363 return bus_log_parse_error(r);
364 if (r == 0)
365 break;
366
367 if (streq(type, "symlink"))
368 log_info("Created symlink %s %s %s.", path, special_glyph(ARROW), source);
369 else if (streq(type, "copy")) {
370 if (isempty(source))
371 log_info("Copied %s.", path);
372 else
373 log_info("Copied %s %s %s.", source, special_glyph(ARROW), path);
374 } else if (streq(type, "unlink"))
375 log_info("Removed %s.", path);
376 else if (streq(type, "write"))
377 log_info("Written %s.", path);
378 else if (streq(type, "mkdir"))
379 log_info("Created directory %s.", path);
380 else
381 log_error("Unexpected change: %s/%s/%s", type, path, source);
382 }
383
384 r = sd_bus_message_exit_container(m);
385 if (r < 0)
386 return r;
387
388 return 0;
389 }
390
391 static int attach_image(int argc, char *argv[], void *userdata) {
392 _cleanup_(sd_bus_message_unrefp) sd_bus_message *m = NULL, *reply = NULL;
393 _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
394 _cleanup_(sd_bus_flush_close_unrefp) sd_bus *bus = NULL;
395 _cleanup_strv_free_ char **matches = NULL;
396 _cleanup_free_ char *image = NULL;
397 int r;
398
399 r = determine_image(argv[1], false, &image);
400 if (r < 0)
401 return r;
402
403 r = determine_matches(argv[1], argv + 2, false, &matches);
404 if (r < 0)
405 return r;
406
407 r = acquire_bus(&bus);
408 if (r < 0)
409 return r;
410
411 (void) polkit_agent_open_if_enabled(arg_transport, arg_ask_password);
412
413 r = sd_bus_message_new_method_call(
414 bus,
415 &m,
416 "org.freedesktop.portable1",
417 "/org/freedesktop/portable1",
418 "org.freedesktop.portable1.Manager",
419 "AttachImage");
420 if (r < 0)
421 return bus_log_create_error(r);
422
423 r = sd_bus_message_append(m, "s", image);
424 if (r < 0)
425 return bus_log_create_error(r);
426
427 r = sd_bus_message_append_strv(m, matches);
428 if (r < 0)
429 return bus_log_create_error(r);
430
431 r = sd_bus_message_append(m, "sbs", arg_profile, arg_runtime, arg_copy_mode);
432 if (r < 0)
433 return bus_log_create_error(r);
434
435 r = sd_bus_call(bus, m, 0, &error, &reply);
436 if (r < 0)
437 return log_error_errno(r, "Failed to attach image: %s", bus_error_message(&error, r));
438
439 (void) maybe_reload(&bus);
440
441 print_changes(reply);
442 return 0;
443 }
444
445 static int detach_image(int argc, char *argv[], void *userdata) {
446 _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL;
447 _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
448 _cleanup_(sd_bus_flush_close_unrefp) sd_bus *bus = NULL;
449 _cleanup_free_ char *image = NULL;
450 int r;
451
452 r = determine_image(argv[1], true, &image);
453 if (r < 0)
454 return r;
455
456 r = acquire_bus(&bus);
457 if (r < 0)
458 return r;
459
460 (void) polkit_agent_open_if_enabled(arg_transport, arg_ask_password);
461
462 r = sd_bus_call_method(
463 bus,
464 "org.freedesktop.portable1",
465 "/org/freedesktop/portable1",
466 "org.freedesktop.portable1.Manager",
467 "DetachImage",
468 &error,
469 &reply,
470 "sb", image, arg_runtime);
471 if (r < 0)
472 return log_error_errno(r, "Failed to detach image: %s", bus_error_message(&error, r));
473
474 (void) maybe_reload(&bus);
475
476 print_changes(reply);
477 return 0;
478 }
479
480 static int list_images(int argc, char *argv[], void *userdata) {
481 _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
482 _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL;
483 _cleanup_(sd_bus_flush_close_unrefp) sd_bus *bus = NULL;
484 _cleanup_(table_unrefp) Table *table = NULL;
485 int r;
486
487 r = acquire_bus(&bus);
488 if (r < 0)
489 return r;
490
491 r = sd_bus_call_method(
492 bus,
493 "org.freedesktop.portable1",
494 "/org/freedesktop/portable1",
495 "org.freedesktop.portable1.Manager",
496 "ListImages",
497 &error,
498 &reply,
499 NULL);
500 if (r < 0)
501 return log_error_errno(r, "Failed to list images: %s", bus_error_message(&error, r));
502
503 table = table_new("NAME", "TYPE", "RO", "CRTIME", "MTIME", "USAGE", "STATE");
504 if (!table)
505 return log_oom();
506
507 r = sd_bus_message_enter_container(reply, 'a', "(ssbtttso)");
508 if (r < 0)
509 return bus_log_parse_error(r);
510
511 for (;;) {
512 const char *name, *type, *state, *object;
513 uint64_t crtime, mtime, usage;
514 TableCell *cell;
515 bool ro_bool;
516 int ro_int;
517
518 r = sd_bus_message_read(reply, "(ssbtttso)", &name, &type, &ro_int, &crtime, &mtime, &usage, &state, &object);
519 if (r < 0)
520 return bus_log_parse_error(r);
521 if (r == 0)
522 break;
523
524 r = table_add_many(table,
525 TABLE_STRING, name,
526 TABLE_STRING, type);
527 if (r < 0)
528 return log_error_errno(r, "Failed to add row to table: %m");
529
530 ro_bool = ro_int;
531 r = table_add_cell(table, &cell, TABLE_BOOLEAN, &ro_bool);
532 if (r < 0)
533 return log_error_errno(r, "Failed to add row to table: %m");
534
535 if (ro_bool) {
536 r = table_set_color(table, cell, ansi_highlight_red());
537 if (r < 0)
538 return log_error_errno(r, "Failed to set table cell color: %m");
539 }
540
541 r = table_add_many(table,
542 TABLE_TIMESTAMP, crtime,
543 TABLE_TIMESTAMP, mtime,
544 TABLE_SIZE, usage);
545 if (r < 0)
546 return log_error_errno(r, "Failed to add row to table: %m");
547
548 r = table_add_cell(table, &cell, TABLE_STRING, state);
549 if (r < 0)
550 return log_error_errno(r, "Failed to add row to table: %m");
551
552 if (!streq(state, "detached")) {
553 r = table_set_color(table, cell, ansi_highlight_green());
554 if (r < 0)
555 return log_error_errno(r, "Failed to set table cell color: %m");
556 }
557 }
558
559 r = sd_bus_message_exit_container(reply);
560 if (r < 0)
561 return bus_log_parse_error(r);
562
563 if (table_get_rows(table) > 1) {
564 r = table_set_sort(table, (size_t) 0, (size_t) -1);
565 if (r < 0)
566 return log_error_errno(r, "Failed to sort table: %m");
567
568 table_set_header(table, arg_legend);
569
570 r = table_print(table, NULL);
571 if (r < 0)
572 return log_error_errno(r, "Failed to show table: %m");
573 }
574
575 if (arg_legend) {
576 if (table_get_rows(table) > 1)
577 printf("\n%zu images listed.\n", table_get_rows(table) - 1);
578 else
579 printf("No images.\n");
580 }
581
582 return 0;
583 }
584
585 static int remove_image(int argc, char *argv[], void *userdata) {
586 _cleanup_(sd_bus_flush_close_unrefp) sd_bus *bus = NULL;
587 int r, i;
588
589 r = acquire_bus(&bus);
590 if (r < 0)
591 return r;
592
593 (void) polkit_agent_open_if_enabled(arg_transport, arg_ask_password);
594
595 for (i = 1; i < argc; i++) {
596 _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
597 _cleanup_(sd_bus_message_unrefp) sd_bus_message *m = NULL;
598
599 r = sd_bus_message_new_method_call(
600 bus,
601 &m,
602 "org.freedesktop.portable1",
603 "/org/freedesktop/portable1",
604 "org.freedesktop.portable1.Manager",
605 "RemoveImage");
606 if (r < 0)
607 return bus_log_create_error(r);
608
609 r = sd_bus_message_append(m, "s", argv[i]);
610 if (r < 0)
611 return bus_log_create_error(r);
612
613 /* This is a slow operation, hence turn off any method call timeouts */
614 r = sd_bus_call(bus, m, USEC_INFINITY, &error, NULL);
615 if (r < 0)
616 return log_error_errno(r, "Could not remove image: %s", bus_error_message(&error, r));
617 }
618
619 return 0;
620 }
621
622 static int read_only_image(int argc, char *argv[], void *userdata) {
623 _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
624 _cleanup_(sd_bus_flush_close_unrefp) sd_bus *bus = NULL;
625 int b = true, r;
626
627 if (argc > 2) {
628 b = parse_boolean(argv[2]);
629 if (b < 0)
630 return log_error_errno(b, "Failed to parse boolean argument: %s", argv[2]);
631 }
632
633 r = acquire_bus(&bus);
634 if (r < 0)
635 return r;
636
637 (void) polkit_agent_open_if_enabled(arg_transport, arg_ask_password);
638
639 r = sd_bus_call_method(
640 bus,
641 "org.freedesktop.portable1",
642 "/org/freedesktop/portable1",
643 "org.freedesktop.portable1.Manager",
644 "MarkImageReadOnly",
645 &error,
646 NULL,
647 "sb", argv[1], b);
648 if (r < 0)
649 return log_error_errno(r, "Could not mark image read-only: %s", bus_error_message(&error, r));
650
651 return 0;
652 }
653
654 static int set_limit(int argc, char *argv[], void *userdata) {
655 _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
656 _cleanup_(sd_bus_flush_close_unrefp) sd_bus *bus = NULL;
657 uint64_t limit;
658 int r;
659
660 r = acquire_bus(&bus);
661 if (r < 0)
662 return r;
663
664 (void) polkit_agent_open_if_enabled(arg_transport, arg_ask_password);
665
666 if (STR_IN_SET(argv[argc-1], "-", "none", "infinity"))
667 limit = (uint64_t) -1;
668 else {
669 r = parse_size(argv[argc-1], 1024, &limit);
670 if (r < 0)
671 return log_error_errno(r, "Failed to parse size: %s", argv[argc-1]);
672 }
673
674 if (argc > 2)
675 /* With two arguments changes the quota limit of the specified image */
676 r = sd_bus_call_method(
677 bus,
678 "org.freedesktop.portable1",
679 "/org/freedesktop/portable1",
680 "org.freedesktop.portable1.Manager",
681 "SetImageLimit",
682 &error,
683 NULL,
684 "st", argv[1], limit);
685 else
686 /* With one argument changes the pool quota limit */
687 r = sd_bus_call_method(
688 bus,
689 "org.freedesktop.portable1",
690 "/org/freedesktop/portable1",
691 "org.freedesktop.portable1.Manager",
692 "SetPoolLimit",
693 &error,
694 NULL,
695 "t", limit);
696
697 if (r < 0)
698 return log_error_errno(r, "Could not set limit: %s", bus_error_message(&error, r));
699
700 return 0;
701 }
702
703 static int is_image_attached(int argc, char *argv[], void *userdata) {
704 _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL;
705 _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
706 _cleanup_(sd_bus_flush_close_unrefp) sd_bus *bus = NULL;
707 _cleanup_free_ char *image = NULL;
708 const char *state;
709 int r;
710
711 r = determine_image(argv[1], true, &image);
712 if (r < 0)
713 return r;
714
715 r = acquire_bus(&bus);
716 if (r < 0)
717 return r;
718
719 r = sd_bus_call_method(
720 bus,
721 "org.freedesktop.portable1",
722 "/org/freedesktop/portable1",
723 "org.freedesktop.portable1.Manager",
724 "GetImageState",
725 &error,
726 &reply,
727 "s", image);
728 if (r < 0)
729 return log_error_errno(r, "Failed to get image state: %s", bus_error_message(&error, r));
730
731 r = sd_bus_message_read(reply, "s", &state);
732 if (r < 0)
733 return r;
734
735 if (!arg_quiet)
736 puts(state);
737
738 return streq(state, "detached");
739 }
740
741 static int dump_profiles(void) {
742 _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
743 _cleanup_(sd_bus_flush_close_unrefp) sd_bus *bus = NULL;
744 _cleanup_strv_free_ char **l = NULL;
745 char **i;
746 int r;
747
748 r = acquire_bus(&bus);
749 if (r < 0)
750 return r;
751
752 r = sd_bus_get_property_strv(
753 bus,
754 "org.freedesktop.portable1",
755 "/org/freedesktop/portable1",
756 "org.freedesktop.portable1.Manager",
757 "Profiles",
758 &error,
759 &l);
760 if (r < 0)
761 return log_error_errno(r, "Failed to acquire list of profiles: %s", bus_error_message(&error, r));
762
763 if (arg_legend)
764 log_info("Available unit profiles:");
765
766 STRV_FOREACH(i, l) {
767 fputs(*i, stdout);
768 fputc('\n', stdout);
769 }
770
771 return 0;
772 }
773
774 static int help(int argc, char *argv[], void *userdata) {
775
776 (void) pager_open(arg_no_pager, false);
777
778 printf("%s [OPTIONS...] {COMMAND} ...\n\n"
779 "Attach or detach portable services from the local system.\n\n"
780 " -h --help Show this help\n"
781 " --version Show package version\n"
782 " --no-pager Do not pipe output into a pager\n"
783 " --no-legend Do not show the headers and footers\n"
784 " --no-ask-password Do not ask for system passwords\n"
785 " -H --host=[USER@]HOST Operate on remote host\n"
786 " -M --machine=CONTAINER Operate on local container\n"
787 " -q --quiet Suppress informational messages\n"
788 " -p --profile=PROFILE Pick security profile for portable service\n"
789 " --copy=copy|auto|symlink Prefer copying or symlinks if possible\n"
790 " --runtime Attach portable service until next reboot only\n"
791 " --no-reload Don't reload the system and service manager\n"
792 " --cat When inspecting include unit and os-release file\n"
793 " contents\n\n"
794 "Commands:\n"
795 " list List available portable service images\n"
796 " attach NAME|PATH [PREFIX...]\n"
797 " Attach the specified portable service image\n"
798 " detach NAME|PATH Detach the specified portable service image\n"
799 " inspect NAME|PATH [PREFIX...]\n"
800 " Show details of specified portable service image\n"
801 " is-attached NAME|PATH Query if portable service image is attached\n"
802 " read-only NAME|PATH [BOOL] Mark or unmark portable service image read-only\n"
803 " remove NAME|PATH... Remove a portable service image\n"
804 " set-limit [NAME|PATH] Set image or pool size limit (disk quota)\n"
805 , program_invocation_short_name);
806
807 return 0;
808 }
809
810 static int parse_argv(int argc, char *argv[]) {
811
812 enum {
813 ARG_VERSION = 0x100,
814 ARG_NO_PAGER,
815 ARG_NO_LEGEND,
816 ARG_NO_ASK_PASSWORD,
817 ARG_COPY,
818 ARG_RUNTIME,
819 ARG_NO_RELOAD,
820 ARG_CAT,
821 };
822
823 static const struct option options[] = {
824 { "help", no_argument, NULL, 'h' },
825 { "version", no_argument, NULL, ARG_VERSION },
826 { "no-pager", no_argument, NULL, ARG_NO_PAGER },
827 { "no-legend", no_argument, NULL, ARG_NO_LEGEND },
828 { "no-ask-password", no_argument, NULL, ARG_NO_ASK_PASSWORD },
829 { "host", required_argument, NULL, 'H' },
830 { "machine", required_argument, NULL, 'M' },
831 { "quiet", no_argument, NULL, 'q' },
832 { "profile", required_argument, NULL, 'p' },
833 { "copy", required_argument, NULL, ARG_COPY },
834 { "runtime", no_argument, NULL, ARG_RUNTIME },
835 { "no-reload", no_argument, NULL, ARG_NO_RELOAD },
836 { "cat", no_argument, NULL, ARG_CAT },
837 {}
838 };
839
840 assert(argc >= 0);
841 assert(argv);
842
843 for (;;) {
844 int c;
845
846 c = getopt_long(argc, argv, "hH:M:qp:", options, NULL);
847 if (c < 0)
848 break;
849
850 switch (c) {
851
852 case 'h':
853 help(0, NULL, NULL);
854 return 0;
855
856 case ARG_VERSION:
857 return version();
858
859 case ARG_NO_PAGER:
860 arg_no_pager = true;
861 break;
862
863 case ARG_NO_LEGEND:
864 arg_legend = false;
865 break;
866
867 case ARG_NO_ASK_PASSWORD:
868 arg_ask_password = false;
869 break;
870
871 case 'H':
872 arg_transport = BUS_TRANSPORT_REMOTE;
873 arg_host = optarg;
874 break;
875
876 case 'M':
877 arg_transport = BUS_TRANSPORT_MACHINE;
878 arg_host = optarg;
879 break;
880
881 case 'q':
882 arg_quiet = true;
883 break;
884
885 case 'p':
886 if (!filename_is_valid(optarg)) {
887 log_error("Unit profile name not valid: %s", optarg);
888 return -EINVAL;
889 }
890
891 if (streq(optarg, "help"))
892 return dump_profiles();
893
894 arg_profile = optarg;
895 break;
896
897 case ARG_COPY:
898 if (streq(optarg, "auto"))
899 arg_copy_mode = NULL;
900 else if (STR_IN_SET(optarg, "copy", "symlink"))
901 arg_copy_mode = optarg;
902 else {
903 log_error("Failed to parse --copy= argument: %s", optarg);
904 return -EINVAL;
905 }
906
907 break;
908
909 case ARG_RUNTIME:
910 arg_runtime = true;
911 break;
912
913 case ARG_NO_RELOAD:
914 arg_reload = false;
915 break;
916
917 case ARG_CAT:
918 arg_cat = true;
919 break;
920
921 case '?':
922 return -EINVAL;
923
924 default:
925 assert_not_reached("Unhandled option");
926 }
927 }
928
929 return 1;
930 }
931
932 int main(int argc, char *argv[]) {
933
934 static const Verb verbs[] = {
935 { "help", VERB_ANY, VERB_ANY, 0, help },
936 { "list", VERB_ANY, 1, VERB_DEFAULT, list_images },
937 { "attach", 2, VERB_ANY, 0, attach_image },
938 { "detach", 2, 2, 0, detach_image },
939 { "inspect", 2, VERB_ANY, 0, inspect_image },
940 { "is-attached", 2, 2, 0, is_image_attached },
941 { "read-only", 2, 3, 0, read_only_image },
942 { "remove", 2, VERB_ANY, 0, remove_image },
943 { "set-limit", 3, 3, 0, set_limit },
944 {}
945 };
946
947 int r;
948
949 log_parse_environment();
950 log_open();
951
952 r = parse_argv(argc, argv);
953 if (r <= 0)
954 goto finish;
955
956 r = dispatch_verb(argc, argv, verbs, NULL);
957
958 finish:
959 pager_close();
960
961 return r < 0 ? EXIT_FAILURE : EXIT_SUCCESS;
962 }
Unnamed repository; edit this file 'description' to name the repository.