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[thirdparty/systemd.git] / src / libsystemd / sd-bus / busctl.c
1 /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
2
3 /***
4 This file is part of systemd.
5
6 Copyright 2013 Lennart Poettering
7
8 systemd is free software; you can redistribute it and/or modify it
9 under the terms of the GNU Lesser General Public License as published by
10 the Free Software Foundation; either version 2.1 of the License, or
11 (at your option) any later version.
12
13 systemd is distributed in the hope that it will be useful, but
14 WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 Lesser General Public License for more details.
17
18 You should have received a copy of the GNU Lesser General Public License
19 along with systemd; If not, see <http://www.gnu.org/licenses/>.
20 ***/
21
22 #include <getopt.h>
23
24 #include "strv.h"
25 #include "util.h"
26 #include "log.h"
27 #include "build.h"
28 #include "pager.h"
29 #include "xml.h"
30 #include "path-util.h"
31
32 #include "sd-bus.h"
33 #include "bus-message.h"
34 #include "bus-internal.h"
35 #include "bus-util.h"
36 #include "bus-dump.h"
37 #include "bus-signature.h"
38 #include "bus-type.h"
39 #include "busctl-introspect.h"
40
41 static bool arg_no_pager = false;
42 static bool arg_legend = true;
43 static char *arg_address = NULL;
44 static bool arg_unique = false;
45 static bool arg_acquired = false;
46 static bool arg_activatable = false;
47 static bool arg_show_machine = false;
48 static char **arg_matches = NULL;
49 static BusTransport arg_transport = BUS_TRANSPORT_LOCAL;
50 static char *arg_host = NULL;
51 static bool arg_user = false;
52 static size_t arg_snaplen = 4096;
53 static bool arg_list = false;
54 static bool arg_quiet = false;
55 static bool arg_verbose = false;
56 static bool arg_expect_reply = true;
57 static bool arg_auto_start = true;
58 static bool arg_allow_interactive_authorization = true;
59 static bool arg_augment_creds = true;
60 static usec_t arg_timeout = 0;
61
62 static void pager_open_if_enabled(void) {
63
64 /* Cache result before we open the pager */
65 if (arg_no_pager)
66 return;
67
68 pager_open(false);
69 }
70
71 #define NAME_IS_ACQUIRED INT_TO_PTR(1)
72 #define NAME_IS_ACTIVATABLE INT_TO_PTR(2)
73
74 static int list_bus_names(sd_bus *bus, char **argv) {
75 _cleanup_strv_free_ char **acquired = NULL, **activatable = NULL;
76 _cleanup_free_ char **merged = NULL;
77 _cleanup_hashmap_free_ Hashmap *names = NULL;
78 char **i;
79 int r;
80 size_t max_i = 0;
81 unsigned n = 0;
82 void *v;
83 char *k;
84 Iterator iterator;
85
86 assert(bus);
87
88 if (!arg_unique && !arg_acquired && !arg_activatable)
89 arg_unique = arg_acquired = arg_activatable = true;
90
91 r = sd_bus_list_names(bus, (arg_acquired || arg_unique) ? &acquired : NULL, arg_activatable ? &activatable : NULL);
92 if (r < 0)
93 return log_error_errno(r, "Failed to list names: %m");
94
95 pager_open_if_enabled();
96
97 names = hashmap_new(&string_hash_ops);
98 if (!names)
99 return log_oom();
100
101 STRV_FOREACH(i, acquired) {
102 max_i = MAX(max_i, strlen(*i));
103
104 r = hashmap_put(names, *i, NAME_IS_ACQUIRED);
105 if (r < 0)
106 return log_error_errno(r, "Failed to add to hashmap: %m");
107 }
108
109 STRV_FOREACH(i, activatable) {
110 max_i = MAX(max_i, strlen(*i));
111
112 r = hashmap_put(names, *i, NAME_IS_ACTIVATABLE);
113 if (r < 0 && r != -EEXIST)
114 return log_error_errno(r, "Failed to add to hashmap: %m");
115 }
116
117 merged = new(char*, hashmap_size(names) + 1);
118 HASHMAP_FOREACH_KEY(v, k, names, iterator)
119 merged[n++] = k;
120
121 merged[n] = NULL;
122 strv_sort(merged);
123
124 if (arg_legend) {
125 printf("%-*s %*s %-*s %-*s %-*s %-*s %-*s %-*s",
126 (int) max_i, "NAME", 10, "PID", 15, "PROCESS", 16, "USER", 13, "CONNECTION", 25, "UNIT", 10, "SESSION", 19, "DESCRIPTION");
127
128 if (arg_show_machine)
129 puts(" MACHINE");
130 else
131 putchar('\n');
132 }
133
134 STRV_FOREACH(i, merged) {
135 _cleanup_bus_creds_unref_ sd_bus_creds *creds = NULL;
136 sd_id128_t mid;
137
138 if (hashmap_get(names, *i) == NAME_IS_ACTIVATABLE) {
139 /* Activatable */
140
141 printf("%-*s", (int) max_i, *i);
142 printf(" - - - (activatable) - - ");
143 if (arg_show_machine)
144 puts(" -");
145 else
146 putchar('\n');
147 continue;
148
149 }
150
151 if (!arg_unique && (*i)[0] == ':')
152 continue;
153
154 if (!arg_acquired && (*i)[0] != ':')
155 continue;
156
157 printf("%-*s", (int) max_i, *i);
158
159 r = sd_bus_get_name_creds(
160 bus, *i,
161 (arg_augment_creds ? SD_BUS_CREDS_AUGMENT : 0) |
162 SD_BUS_CREDS_UID|SD_BUS_CREDS_PID|SD_BUS_CREDS_COMM|
163 SD_BUS_CREDS_UNIQUE_NAME|SD_BUS_CREDS_UNIT|SD_BUS_CREDS_SESSION|
164 SD_BUS_CREDS_DESCRIPTION, &creds);
165 if (r >= 0) {
166 const char *unique, *session, *unit, *cn;
167 pid_t pid;
168 uid_t uid;
169
170 r = sd_bus_creds_get_pid(creds, &pid);
171 if (r >= 0) {
172 const char *comm = NULL;
173
174 sd_bus_creds_get_comm(creds, &comm);
175
176 printf(" %10lu %-15s", (unsigned long) pid, strna(comm));
177 } else
178 fputs(" - - ", stdout);
179
180 r = sd_bus_creds_get_uid(creds, &uid);
181 if (r >= 0) {
182 _cleanup_free_ char *u = NULL;
183
184 u = uid_to_name(uid);
185 if (!u)
186 return log_oom();
187
188 if (strlen(u) > 16)
189 u[16] = 0;
190
191 printf(" %-16s", u);
192 } else
193 fputs(" - ", stdout);
194
195 r = sd_bus_creds_get_unique_name(creds, &unique);
196 if (r >= 0)
197 printf(" %-13s", unique);
198 else
199 fputs(" - ", stdout);
200
201 r = sd_bus_creds_get_unit(creds, &unit);
202 if (r >= 0) {
203 _cleanup_free_ char *e;
204
205 e = ellipsize(unit, 25, 100);
206 if (!e)
207 return log_oom();
208
209 printf(" %-25s", e);
210 } else
211 fputs(" - ", stdout);
212
213 r = sd_bus_creds_get_session(creds, &session);
214 if (r >= 0)
215 printf(" %-10s", session);
216 else
217 fputs(" - ", stdout);
218
219 r = sd_bus_creds_get_description(creds, &cn);
220 if (r >= 0)
221 printf(" %-19s", cn);
222 else
223 fputs(" - ", stdout);
224
225 } else
226 printf(" - - - - - - - ");
227
228 if (arg_show_machine) {
229 r = sd_bus_get_name_machine_id(bus, *i, &mid);
230 if (r >= 0) {
231 char m[SD_ID128_STRING_MAX];
232 printf(" %s\n", sd_id128_to_string(mid, m));
233 } else
234 puts(" -");
235 } else
236 putchar('\n');
237 }
238
239 return 0;
240 }
241
242 static void print_subtree(const char *prefix, const char *path, char **l) {
243 const char *vertical, *space;
244 char **n;
245
246 /* We assume the list is sorted. Let's first skip over the
247 * entry we are looking at. */
248 for (;;) {
249 if (!*l)
250 return;
251
252 if (!streq(*l, path))
253 break;
254
255 l++;
256 }
257
258 vertical = strappenda(prefix, draw_special_char(DRAW_TREE_VERTICAL));
259 space = strappenda(prefix, draw_special_char(DRAW_TREE_SPACE));
260
261 for (;;) {
262 bool has_more = false;
263
264 if (!*l || !path_startswith(*l, path))
265 break;
266
267 n = l + 1;
268 for (;;) {
269 if (!*n || !path_startswith(*n, path))
270 break;
271
272 if (!path_startswith(*n, *l)) {
273 has_more = true;
274 break;
275 }
276
277 n++;
278 }
279
280 printf("%s%s%s\n", prefix, draw_special_char(has_more ? DRAW_TREE_BRANCH : DRAW_TREE_RIGHT), *l);
281
282 print_subtree(has_more ? vertical : space, *l, l);
283 l = n;
284 }
285 }
286
287 static void print_tree(const char *prefix, char **l) {
288
289 pager_open_if_enabled();
290
291 prefix = strempty(prefix);
292
293 if (arg_list) {
294 char **i;
295
296 STRV_FOREACH(i, l)
297 printf("%s%s\n", prefix, *i);
298 return;
299 }
300
301 if (strv_isempty(l)) {
302 printf("No objects discovered.\n");
303 return;
304 }
305
306 if (streq(l[0], "/") && !l[1]) {
307 printf("Only root object discovered.\n");
308 return;
309 }
310
311 print_subtree(prefix, "/", l);
312 }
313
314 static int on_path(const char *path, void *userdata) {
315 Set *paths = userdata;
316 int r;
317
318 assert(paths);
319
320 r = set_put_strdup(paths, path);
321 if (r < 0)
322 return log_oom();
323
324 return 0;
325 }
326
327 static int find_nodes(sd_bus *bus, const char *service, const char *path, Set *paths, bool many) {
328 static const XMLIntrospectOps ops = {
329 .on_path = on_path,
330 };
331
332 _cleanup_bus_message_unref_ sd_bus_message *reply = NULL;
333 _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
334 const char *xml;
335 int r;
336
337 r = sd_bus_call_method(bus, service, path, "org.freedesktop.DBus.Introspectable", "Introspect", &error, &reply, "");
338 if (r < 0) {
339 if (many)
340 printf("Failed to introspect object %s of service %s: %s\n", path, service, bus_error_message(&error, r));
341 else
342 log_error("Failed to introspect object %s of service %s: %s", path, service, bus_error_message(&error, r));
343 return r;
344 }
345
346 r = sd_bus_message_read(reply, "s", &xml);
347 if (r < 0)
348 return bus_log_parse_error(r);
349
350 return parse_xml_introspect(path, xml, &ops, paths);
351 }
352
353 static int tree_one(sd_bus *bus, const char *service, const char *prefix, bool many) {
354 _cleanup_set_free_free_ Set *paths = NULL, *done = NULL, *failed = NULL;
355 _cleanup_free_ char **l = NULL;
356 char *m;
357 int r;
358
359 paths = set_new(&string_hash_ops);
360 if (!paths)
361 return log_oom();
362
363 done = set_new(&string_hash_ops);
364 if (!done)
365 return log_oom();
366
367 failed = set_new(&string_hash_ops);
368 if (!failed)
369 return log_oom();
370
371 m = strdup("/");
372 if (!m)
373 return log_oom();
374
375 r = set_put(paths, m);
376 if (r < 0) {
377 free(m);
378 return log_oom();
379 }
380
381 for (;;) {
382 _cleanup_free_ char *p = NULL;
383 int q;
384
385 p = set_steal_first(paths);
386 if (!p)
387 break;
388
389 if (set_contains(done, p) ||
390 set_contains(failed, p))
391 continue;
392
393 q = find_nodes(bus, service, p, paths, many);
394 if (q < 0) {
395 if (r >= 0)
396 r = q;
397
398 q = set_put(failed, p);
399 } else
400 q = set_put(done, p);
401
402 if (q < 0)
403 return log_oom();
404
405 assert(q != 0);
406 p = NULL;
407 }
408
409 pager_open_if_enabled();
410
411 l = set_get_strv(done);
412 if (!l)
413 return log_oom();
414
415 strv_sort(l);
416 print_tree(prefix, l);
417
418 fflush(stdout);
419
420 return r;
421 }
422
423 static int tree(sd_bus *bus, char **argv) {
424 char **i;
425 int r = 0;
426
427 if (!arg_unique && !arg_acquired)
428 arg_acquired = true;
429
430 if (strv_length(argv) <= 1) {
431 _cleanup_strv_free_ char **names = NULL;
432 bool not_first = false;
433
434 r = sd_bus_list_names(bus, &names, NULL);
435 if (r < 0)
436 return log_error_errno(r, "Failed to get name list: %m");
437
438 pager_open_if_enabled();
439
440 STRV_FOREACH(i, names) {
441 int q;
442
443 if (!arg_unique && (*i)[0] == ':')
444 continue;
445
446 if (!arg_acquired && (*i)[0] == ':')
447 continue;
448
449 if (not_first)
450 printf("\n");
451
452 printf("Service %s%s%s:\n", ansi_highlight(), *i, ansi_highlight_off());
453
454 q = tree_one(bus, *i, NULL, true);
455 if (q < 0 && r >= 0)
456 r = q;
457
458 not_first = true;
459 }
460 } else {
461 STRV_FOREACH(i, argv+1) {
462 int q;
463
464 if (i > argv+1)
465 printf("\n");
466
467 if (argv[2]) {
468 pager_open_if_enabled();
469 printf("Service %s%s%s:\n", ansi_highlight(), *i, ansi_highlight_off());
470 }
471
472 q = tree_one(bus, *i, NULL, !!argv[2]);
473 if (q < 0 && r >= 0)
474 r = q;
475 }
476 }
477
478 return r;
479 }
480
481 static int format_cmdline(sd_bus_message *m, FILE *f, bool needs_space) {
482 int r;
483
484 for (;;) {
485 const char *contents = NULL;
486 char type;
487 union {
488 uint8_t u8;
489 uint16_t u16;
490 int16_t s16;
491 uint32_t u32;
492 int32_t s32;
493 uint64_t u64;
494 int64_t s64;
495 double d64;
496 const char *string;
497 int i;
498 } basic;
499
500 r = sd_bus_message_peek_type(m, &type, &contents);
501 if (r <= 0)
502 return r;
503
504 if (bus_type_is_container(type) > 0) {
505
506 r = sd_bus_message_enter_container(m, type, contents);
507 if (r < 0)
508 return r;
509
510 if (type == SD_BUS_TYPE_ARRAY) {
511 unsigned n = 0;
512
513 /* count array entries */
514 for (;;) {
515
516 r = sd_bus_message_skip(m, contents);
517 if (r < 0)
518 return r;
519 if (r == 0)
520 break;
521
522 n++;
523 }
524
525 r = sd_bus_message_rewind(m, false);
526 if (r < 0)
527 return r;
528
529 if (needs_space)
530 fputc(' ', f);
531
532 fprintf(f, "%u", n);
533 } else if (type == SD_BUS_TYPE_VARIANT) {
534
535 if (needs_space)
536 fputc(' ', f);
537
538 fprintf(f, "%s", contents);
539 }
540
541 r = format_cmdline(m, f, true);
542 if (r < 0)
543 return r;
544
545 r = sd_bus_message_exit_container(m);
546 if (r < 0)
547 return r;
548
549 continue;
550 }
551
552 r = sd_bus_message_read_basic(m, type, &basic);
553 if (r < 0)
554 return r;
555
556 if (needs_space)
557 fputc(' ', f);
558
559 switch (type) {
560 case SD_BUS_TYPE_BYTE:
561 fprintf(f, "%u", basic.u8);
562 break;
563
564 case SD_BUS_TYPE_BOOLEAN:
565 fputs(true_false(basic.i), f);
566 break;
567
568 case SD_BUS_TYPE_INT16:
569 fprintf(f, "%i", basic.s16);
570 break;
571
572 case SD_BUS_TYPE_UINT16:
573 fprintf(f, "%u", basic.u16);
574 break;
575
576 case SD_BUS_TYPE_INT32:
577 fprintf(f, "%i", basic.s32);
578 break;
579
580 case SD_BUS_TYPE_UINT32:
581 fprintf(f, "%u", basic.u32);
582 break;
583
584 case SD_BUS_TYPE_INT64:
585 fprintf(f, "%" PRIi64, basic.s64);
586 break;
587
588 case SD_BUS_TYPE_UINT64:
589 fprintf(f, "%" PRIu64, basic.u64);
590 break;
591
592 case SD_BUS_TYPE_DOUBLE:
593 fprintf(f, "%g", basic.d64);
594 break;
595
596 case SD_BUS_TYPE_STRING:
597 case SD_BUS_TYPE_OBJECT_PATH:
598 case SD_BUS_TYPE_SIGNATURE: {
599 _cleanup_free_ char *b = NULL;
600
601 b = cescape(basic.string);
602 if (!b)
603 return -ENOMEM;
604
605 fprintf(f, "\"%s\"", b);
606 break;
607 }
608
609 case SD_BUS_TYPE_UNIX_FD:
610 fprintf(f, "%i", basic.i);
611 break;
612
613 default:
614 assert_not_reached("Unknown basic type.");
615 }
616
617 }
618 }
619
620 typedef struct Member {
621 const char *type;
622 char *interface;
623 char *name;
624 char *signature;
625 char *result;
626 char *value;
627 bool writable;
628 uint64_t flags;
629 } Member;
630
631 static unsigned long member_hash_func(const void *p, const uint8_t hash_key[]) {
632 const Member *m = p;
633 unsigned long ul;
634
635 assert(m);
636 assert(m->type);
637
638 ul = string_hash_func(m->type, hash_key);
639
640 if (m->name)
641 ul ^= string_hash_func(m->name, hash_key);
642
643 if (m->interface)
644 ul ^= string_hash_func(m->interface, hash_key);
645
646 return ul;
647 }
648
649 static int member_compare_func(const void *a, const void *b) {
650 const Member *x = a, *y = b;
651 int d;
652
653 assert(x);
654 assert(y);
655 assert(x->type);
656 assert(y->type);
657
658 if (!x->interface && y->interface)
659 return -1;
660 if (x->interface && !y->interface)
661 return 1;
662 if (x->interface && y->interface) {
663 d = strcmp(x->interface, y->interface);
664 if (d != 0)
665 return d;
666 }
667
668 d = strcmp(x->type, y->type);
669 if (d != 0)
670 return d;
671
672 if (!x->name && y->name)
673 return -1;
674 if (x->name && !y->name)
675 return 1;
676 if (x->name && y->name)
677 return strcmp(x->name, y->name);
678
679 return 0;
680 }
681
682 static int member_compare_funcp(const void *a, const void *b) {
683 const Member *const * x = (const Member *const *) a, * const *y = (const Member *const *) b;
684
685 return member_compare_func(*x, *y);
686 }
687
688 static void member_free(Member *m) {
689 if (!m)
690 return;
691
692 free(m->interface);
693 free(m->name);
694 free(m->signature);
695 free(m->result);
696 free(m->value);
697 free(m);
698 }
699
700 DEFINE_TRIVIAL_CLEANUP_FUNC(Member*, member_free);
701
702 static void member_set_free(Set *s) {
703 Member *m;
704
705 while ((m = set_steal_first(s)))
706 member_free(m);
707
708 set_free(s);
709 }
710
711 DEFINE_TRIVIAL_CLEANUP_FUNC(Set*, member_set_free);
712
713 static int on_interface(const char *interface, uint64_t flags, void *userdata) {
714 _cleanup_(member_freep) Member *m;
715 Set *members = userdata;
716 int r;
717
718 assert(interface);
719 assert(members);
720
721 m = new0(Member, 1);
722 if (!m)
723 return log_oom();
724
725 m->type = "interface";
726 m->flags = flags;
727
728 r = free_and_strdup(&m->interface, interface);
729 if (r < 0)
730 return log_oom();
731
732 r = set_put(members, m);
733 if (r <= 0) {
734 log_error("Duplicate interface");
735 return -EINVAL;
736 }
737
738 m = NULL;
739 return 0;
740 }
741
742 static int on_method(const char *interface, const char *name, const char *signature, const char *result, uint64_t flags, void *userdata) {
743 _cleanup_(member_freep) Member *m;
744 Set *members = userdata;
745 int r;
746
747 assert(interface);
748 assert(name);
749
750 m = new0(Member, 1);
751 if (!m)
752 return log_oom();
753
754 m->type = "method";
755 m->flags = flags;
756
757 r = free_and_strdup(&m->interface, interface);
758 if (r < 0)
759 return log_oom();
760
761 r = free_and_strdup(&m->name, name);
762 if (r < 0)
763 return log_oom();
764
765 r = free_and_strdup(&m->signature, signature);
766 if (r < 0)
767 return log_oom();
768
769 r = free_and_strdup(&m->result, result);
770 if (r < 0)
771 return log_oom();
772
773 r = set_put(members, m);
774 if (r <= 0) {
775 log_error("Duplicate method");
776 return -EINVAL;
777 }
778
779 m = NULL;
780 return 0;
781 }
782
783 static int on_signal(const char *interface, const char *name, const char *signature, uint64_t flags, void *userdata) {
784 _cleanup_(member_freep) Member *m;
785 Set *members = userdata;
786 int r;
787
788 assert(interface);
789 assert(name);
790
791 m = new0(Member, 1);
792 if (!m)
793 return log_oom();
794
795 m->type = "signal";
796 m->flags = flags;
797
798 r = free_and_strdup(&m->interface, interface);
799 if (r < 0)
800 return log_oom();
801
802 r = free_and_strdup(&m->name, name);
803 if (r < 0)
804 return log_oom();
805
806 r = free_and_strdup(&m->signature, signature);
807 if (r < 0)
808 return log_oom();
809
810 r = set_put(members, m);
811 if (r <= 0) {
812 log_error("Duplicate signal");
813 return -EINVAL;
814 }
815
816 m = NULL;
817 return 0;
818 }
819
820 static int on_property(const char *interface, const char *name, const char *signature, bool writable, uint64_t flags, void *userdata) {
821 _cleanup_(member_freep) Member *m;
822 Set *members = userdata;
823 int r;
824
825 assert(interface);
826 assert(name);
827
828 m = new0(Member, 1);
829 if (!m)
830 return log_oom();
831
832 m->type = "property";
833 m->flags = flags;
834 m->writable = writable;
835
836 r = free_and_strdup(&m->interface, interface);
837 if (r < 0)
838 return log_oom();
839
840 r = free_and_strdup(&m->name, name);
841 if (r < 0)
842 return log_oom();
843
844 r = free_and_strdup(&m->signature, signature);
845 if (r < 0)
846 return log_oom();
847
848 r = set_put(members, m);
849 if (r <= 0) {
850 log_error("Duplicate property");
851 return -EINVAL;
852 }
853
854 m = NULL;
855 return 0;
856 }
857
858 static const char *strdash(const char *x) {
859 return isempty(x) ? "-" : x;
860 }
861
862 static int introspect(sd_bus *bus, char **argv) {
863 static const struct hash_ops member_hash_ops = {
864 .hash = member_hash_func,
865 .compare = member_compare_func,
866 };
867
868 static const XMLIntrospectOps ops = {
869 .on_interface = on_interface,
870 .on_method = on_method,
871 .on_signal = on_signal,
872 .on_property = on_property,
873 };
874
875 _cleanup_bus_message_unref_ sd_bus_message *reply = NULL;
876 _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
877 _cleanup_(member_set_freep) Set *members = NULL;
878 Iterator i;
879 Member *m;
880 const char *xml;
881 int r;
882 unsigned name_width, type_width, signature_width, result_width;
883 Member **sorted = NULL;
884 unsigned k = 0, j;
885
886 if (strv_length(argv) != 3) {
887 log_error("Requires service and object path argument.");
888 return -EINVAL;
889 }
890
891 members = set_new(&member_hash_ops);
892 if (!members)
893 return log_oom();
894
895 r = sd_bus_call_method(bus, argv[1], argv[2], "org.freedesktop.DBus.Introspectable", "Introspect", &error, &reply, "");
896 if (r < 0) {
897 log_error("Failed to introspect object %s of service %s: %s", argv[2], argv[1], bus_error_message(&error, r));
898 return r;
899 }
900
901 r = sd_bus_message_read(reply, "s", &xml);
902 if (r < 0)
903 return bus_log_parse_error(r);
904
905 /* First, get list of all properties */
906 r = parse_xml_introspect(argv[2], xml, &ops, members);
907 if (r < 0)
908 return r;
909
910 /* Second, find the current values for them */
911 SET_FOREACH(m, members, i) {
912
913 if (!streq(m->type, "property"))
914 continue;
915
916 if (m->value)
917 continue;
918
919 r = sd_bus_call_method(bus, argv[1], argv[2], "org.freedesktop.DBus.Properties", "GetAll", &error, &reply, "s", m->interface);
920 if (r < 0) {
921 log_error("%s", bus_error_message(&error, r));
922 return r;
923 }
924
925 r = sd_bus_message_enter_container(reply, 'a', "{sv}");
926 if (r < 0)
927 return bus_log_parse_error(r);
928
929 for (;;) {
930 Member *z;
931 _cleanup_free_ char *buf = NULL;
932 _cleanup_fclose_ FILE *mf = NULL;
933 size_t sz = 0;
934 const char *name;
935
936 r = sd_bus_message_enter_container(reply, 'e', "sv");
937 if (r < 0)
938 return bus_log_parse_error(r);
939
940 if (r == 0)
941 break;
942
943 r = sd_bus_message_read(reply, "s", &name);
944 if (r < 0)
945 return bus_log_parse_error(r);
946
947 r = sd_bus_message_enter_container(reply, 'v', NULL);
948 if (r < 0)
949 return bus_log_parse_error(r);
950
951 mf = open_memstream(&buf, &sz);
952 if (!mf)
953 return log_oom();
954
955 r = format_cmdline(reply, mf, false);
956 if (r < 0)
957 return bus_log_parse_error(r);
958
959 fclose(mf);
960 mf = NULL;
961
962 z = set_get(members, &((Member) {
963 .type = "property",
964 .interface = m->interface,
965 .name = (char*) name }));
966 if (z) {
967 free(z->value);
968 z->value = buf;
969 buf = NULL;
970 }
971
972 r = sd_bus_message_exit_container(reply);
973 if (r < 0)
974 return bus_log_parse_error(r);
975
976 r = sd_bus_message_exit_container(reply);
977 if (r < 0)
978 return bus_log_parse_error(r);
979 }
980
981 r = sd_bus_message_exit_container(reply);
982 if (r < 0)
983 return bus_log_parse_error(r);
984 }
985
986 pager_open_if_enabled();
987
988 name_width = strlen("NAME");
989 type_width = strlen("TYPE");
990 signature_width = strlen("SIGNATURE");
991 result_width = strlen("RESULT/VALUE");
992
993 sorted = newa(Member*, set_size(members));
994
995 SET_FOREACH(m, members, i) {
996 if (m->interface)
997 name_width = MAX(name_width, strlen(m->interface));
998 if (m->name)
999 name_width = MAX(name_width, strlen(m->name) + 1);
1000 if (m->type)
1001 type_width = MAX(type_width, strlen(m->type));
1002 if (m->signature)
1003 signature_width = MAX(signature_width, strlen(m->signature));
1004 if (m->result)
1005 result_width = MAX(result_width, strlen(m->result));
1006 if (m->value)
1007 result_width = MAX(result_width, strlen(m->value));
1008
1009 sorted[k++] = m;
1010 }
1011
1012 if (result_width > 40)
1013 result_width = 40;
1014
1015 assert(k == set_size(members));
1016 qsort(sorted, k, sizeof(Member*), member_compare_funcp);
1017
1018 if (arg_legend) {
1019 printf("%-*s %-*s %-*s %-*s %s\n",
1020 (int) name_width, "NAME",
1021 (int) type_width, "TYPE",
1022 (int) signature_width, "SIGNATURE",
1023 (int) result_width, "RESULT/VALUE",
1024 "FLAGS");
1025 }
1026
1027 for (j = 0; j < k; j++) {
1028 _cleanup_free_ char *ellipsized = NULL;
1029 const char *rv;
1030 bool is_interface;
1031
1032 m = sorted[j];
1033
1034 is_interface = streq(m->type, "interface");
1035
1036 if (m->value) {
1037 ellipsized = ellipsize(m->value, result_width, 100);
1038 if (!ellipsized)
1039 return log_oom();
1040
1041 rv = ellipsized;
1042 } else
1043 rv = strdash(m->result);
1044
1045 printf("%s%s%-*s%s %-*s %-*s %-*s%s%s%s%s%s%s\n",
1046 is_interface ? ansi_highlight() : "",
1047 is_interface ? "" : ".",
1048 - !is_interface + (int) name_width, strdash(streq_ptr(m->type, "interface") ? m->interface : m->name),
1049 is_interface ? ansi_highlight_off() : "",
1050 (int) type_width, strdash(m->type),
1051 (int) signature_width, strdash(m->signature),
1052 (int) result_width, rv,
1053 (m->flags & SD_BUS_VTABLE_DEPRECATED) ? " deprecated" : (m->flags || m->writable ? "" : " -"),
1054 (m->flags & SD_BUS_VTABLE_METHOD_NO_REPLY) ? " no-reply" : "",
1055 (m->flags & SD_BUS_VTABLE_PROPERTY_CONST) ? " const" : "",
1056 (m->flags & SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE) ? " emits-change" : "",
1057 (m->flags & SD_BUS_VTABLE_PROPERTY_EMITS_INVALIDATION) ? " emits-invalidation" : "",
1058 m->writable ? " writable" : "");
1059 }
1060
1061 return 0;
1062 }
1063
1064 static int message_dump(sd_bus_message *m, FILE *f) {
1065 return bus_message_dump(m, f, BUS_MESSAGE_DUMP_WITH_HEADER);
1066 }
1067
1068 static int message_pcap(sd_bus_message *m, FILE *f) {
1069 return bus_message_pcap_frame(m, arg_snaplen, f);
1070 }
1071
1072 static int monitor(sd_bus *bus, char *argv[], int (*dump)(sd_bus_message *m, FILE *f)) {
1073 bool added_something = false;
1074 char **i;
1075 int r;
1076
1077 STRV_FOREACH(i, argv+1) {
1078 _cleanup_free_ char *m = NULL;
1079
1080 if (!service_name_is_valid(*i)) {
1081 log_error("Invalid service name '%s'", *i);
1082 return -EINVAL;
1083 }
1084
1085 m = strjoin("sender='", *i, "'", NULL);
1086 if (!m)
1087 return log_oom();
1088
1089 r = sd_bus_add_match(bus, NULL, m, NULL, NULL);
1090 if (r < 0)
1091 return log_error_errno(r, "Failed to add match: %m");
1092
1093 added_something = true;
1094 }
1095
1096 STRV_FOREACH(i, arg_matches) {
1097 r = sd_bus_add_match(bus, NULL, *i, NULL, NULL);
1098 if (r < 0)
1099 return log_error_errno(r, "Failed to add match: %m");
1100
1101 added_something = true;
1102 }
1103
1104 if (!added_something) {
1105 r = sd_bus_add_match(bus, NULL, "", NULL, NULL);
1106 if (r < 0)
1107 return log_error_errno(r, "Failed to add match: %m");
1108 }
1109
1110 for (;;) {
1111 _cleanup_bus_message_unref_ sd_bus_message *m = NULL;
1112
1113 r = sd_bus_process(bus, &m);
1114 if (r < 0)
1115 return log_error_errno(r, "Failed to process bus: %m");
1116
1117 if (m) {
1118 dump(m, stdout);
1119 continue;
1120 }
1121
1122 if (r > 0)
1123 continue;
1124
1125 r = sd_bus_wait(bus, (uint64_t) -1);
1126 if (r < 0)
1127 return log_error_errno(r, "Failed to wait for bus: %m");
1128 }
1129 }
1130
1131 static int capture(sd_bus *bus, char *argv[]) {
1132 int r;
1133
1134 if (isatty(fileno(stdout)) > 0) {
1135 log_error("Refusing to write message data to console, please redirect output to a file.");
1136 return -EINVAL;
1137 }
1138
1139 bus_pcap_header(arg_snaplen, stdout);
1140
1141 r = monitor(bus, argv, message_pcap);
1142 if (r < 0)
1143 return r;
1144
1145 if (ferror(stdout)) {
1146 log_error("Couldn't write capture file.");
1147 return -EIO;
1148 }
1149
1150 return r;
1151 }
1152
1153 static int status(sd_bus *bus, char *argv[]) {
1154 _cleanup_bus_creds_unref_ sd_bus_creds *creds = NULL;
1155 pid_t pid;
1156 int r;
1157
1158 assert(bus);
1159
1160 if (strv_length(argv) > 2) {
1161 log_error("Expects no or one argument.");
1162 return -EINVAL;
1163 }
1164
1165 if (argv[1]) {
1166 r = parse_pid(argv[1], &pid);
1167 if (r < 0)
1168 r = sd_bus_get_name_creds(
1169 bus,
1170 argv[1],
1171 (arg_augment_creds ? SD_BUS_CREDS_AUGMENT : 0) | _SD_BUS_CREDS_ALL,
1172 &creds);
1173 else
1174 r = sd_bus_creds_new_from_pid(
1175 &creds,
1176 pid,
1177 _SD_BUS_CREDS_ALL);
1178 } else {
1179 const char *scope;
1180
1181 r = sd_bus_get_scope(bus, &scope);
1182 if (r >= 0)
1183 printf("Scope=%s%s%s\n", ansi_highlight(), scope, ansi_highlight_off());
1184
1185 r = sd_bus_get_owner_creds(
1186 bus,
1187 (arg_augment_creds ? SD_BUS_CREDS_AUGMENT : 0) | _SD_BUS_CREDS_ALL,
1188 &creds);
1189 }
1190
1191 if (r < 0)
1192 return log_error_errno(r, "Failed to get credentials: %m");
1193
1194 bus_creds_dump(creds, NULL, false);
1195 return 0;
1196 }
1197
1198 static int message_append_cmdline(sd_bus_message *m, const char *signature, char ***x) {
1199 char **p;
1200 int r;
1201
1202 assert(m);
1203 assert(signature);
1204 assert(x);
1205
1206 p = *x;
1207
1208 for (;;) {
1209 const char *v;
1210 char t;
1211
1212 t = *signature;
1213 v = *p;
1214
1215 if (t == 0)
1216 break;
1217 if (!v) {
1218 log_error("Too few parameters for signature.");
1219 return -EINVAL;
1220 }
1221
1222 signature++;
1223 p++;
1224
1225 switch (t) {
1226
1227 case SD_BUS_TYPE_BOOLEAN:
1228
1229 r = parse_boolean(v);
1230 if (r < 0) {
1231 log_error("Failed to parse as boolean: %s", v);
1232 return r;
1233 }
1234
1235 r = sd_bus_message_append_basic(m, t, &r);
1236 break;
1237
1238 case SD_BUS_TYPE_BYTE: {
1239 uint8_t z;
1240
1241 r = safe_atou8(v, &z);
1242 if (r < 0) {
1243 log_error("Failed to parse as byte (unsigned 8bit integer): %s", v);
1244 return r;
1245 }
1246
1247 r = sd_bus_message_append_basic(m, t, &z);
1248 break;
1249 }
1250
1251 case SD_BUS_TYPE_INT16: {
1252 int16_t z;
1253
1254 r = safe_atoi16(v, &z);
1255 if (r < 0) {
1256 log_error("Failed to parse as signed 16bit integer: %s", v);
1257 return r;
1258 }
1259
1260 r = sd_bus_message_append_basic(m, t, &z);
1261 break;
1262 }
1263
1264 case SD_BUS_TYPE_UINT16: {
1265 uint16_t z;
1266
1267 r = safe_atou16(v, &z);
1268 if (r < 0) {
1269 log_error("Failed to parse as unsigned 16bit integer: %s", v);
1270 return r;
1271 }
1272
1273 r = sd_bus_message_append_basic(m, t, &z);
1274 break;
1275 }
1276
1277 case SD_BUS_TYPE_INT32: {
1278 int32_t z;
1279
1280 r = safe_atoi32(v, &z);
1281 if (r < 0) {
1282 log_error("Failed to parse as signed 32bit integer: %s", v);
1283 return r;
1284 }
1285
1286 r = sd_bus_message_append_basic(m, t, &z);
1287 break;
1288 }
1289
1290 case SD_BUS_TYPE_UINT32: {
1291 uint32_t z;
1292
1293 r = safe_atou32(v, &z);
1294 if (r < 0) {
1295 log_error("Failed to parse as unsigned 32bit integer: %s", v);
1296 return r;
1297 }
1298
1299 r = sd_bus_message_append_basic(m, t, &z);
1300 break;
1301 }
1302
1303 case SD_BUS_TYPE_INT64: {
1304 int64_t z;
1305
1306 r = safe_atoi64(v, &z);
1307 if (r < 0) {
1308 log_error("Failed to parse as signed 64bit integer: %s", v);
1309 return r;
1310 }
1311
1312 r = sd_bus_message_append_basic(m, t, &z);
1313 break;
1314 }
1315
1316 case SD_BUS_TYPE_UINT64: {
1317 uint64_t z;
1318
1319 r = safe_atou64(v, &z);
1320 if (r < 0) {
1321 log_error("Failed to parse as unsigned 64bit integer: %s", v);
1322 return r;
1323 }
1324
1325 r = sd_bus_message_append_basic(m, t, &z);
1326 break;
1327 }
1328
1329
1330 case SD_BUS_TYPE_DOUBLE: {
1331 double z;
1332
1333 r = safe_atod(v, &z);
1334 if (r < 0) {
1335 log_error("Failed to parse as double precision floating point: %s", v);
1336 return r;
1337 }
1338
1339 r = sd_bus_message_append_basic(m, t, &z);
1340 break;
1341 }
1342
1343 case SD_BUS_TYPE_STRING:
1344 case SD_BUS_TYPE_OBJECT_PATH:
1345 case SD_BUS_TYPE_SIGNATURE:
1346
1347 r = sd_bus_message_append_basic(m, t, v);
1348 break;
1349
1350 case SD_BUS_TYPE_ARRAY: {
1351 uint32_t n;
1352 size_t k;
1353
1354 r = safe_atou32(v, &n);
1355 if (r < 0) {
1356 log_error("Failed to parse number of array entries: %s", v);
1357 return r;
1358 }
1359
1360 r = signature_element_length(signature, &k);
1361 if (r < 0) {
1362 log_error("Invalid array signature.");
1363 return r;
1364 }
1365
1366 {
1367 unsigned i;
1368 char s[k + 1];
1369 memcpy(s, signature, k);
1370 s[k] = 0;
1371
1372 r = sd_bus_message_open_container(m, SD_BUS_TYPE_ARRAY, s);
1373 if (r < 0)
1374 return bus_log_create_error(r);
1375
1376 for (i = 0; i < n; i++) {
1377 r = message_append_cmdline(m, s, &p);
1378 if (r < 0)
1379 return r;
1380 }
1381 }
1382
1383 signature += k;
1384
1385 r = sd_bus_message_close_container(m);
1386 break;
1387 }
1388
1389 case SD_BUS_TYPE_VARIANT:
1390 r = sd_bus_message_open_container(m, SD_BUS_TYPE_VARIANT, v);
1391 if (r < 0)
1392 return bus_log_create_error(r);
1393
1394 r = message_append_cmdline(m, v, &p);
1395 if (r < 0)
1396 return r;
1397
1398 r = sd_bus_message_close_container(m);
1399 break;
1400
1401 case SD_BUS_TYPE_STRUCT_BEGIN:
1402 case SD_BUS_TYPE_DICT_ENTRY_BEGIN: {
1403 size_t k;
1404
1405 signature--;
1406 p--;
1407
1408 r = signature_element_length(signature, &k);
1409 if (r < 0) {
1410 log_error("Invalid struct/dict entry signature.");
1411 return r;
1412 }
1413
1414 {
1415 char s[k-1];
1416 memcpy(s, signature + 1, k - 2);
1417 s[k - 2] = 0;
1418
1419 r = sd_bus_message_open_container(m, t == SD_BUS_TYPE_STRUCT_BEGIN ? SD_BUS_TYPE_STRUCT : SD_BUS_TYPE_DICT_ENTRY, s);
1420 if (r < 0)
1421 return bus_log_create_error(r);
1422
1423 r = message_append_cmdline(m, s, &p);
1424 if (r < 0)
1425 return r;
1426 }
1427
1428 signature += k;
1429
1430 r = sd_bus_message_close_container(m);
1431 break;
1432 }
1433
1434 case SD_BUS_TYPE_UNIX_FD:
1435 log_error("UNIX file descriptor not supported as type.");
1436 return -EINVAL;
1437
1438 default:
1439 log_error("Unknown signature type %c.", t);
1440 return -EINVAL;
1441 }
1442
1443 if (r < 0)
1444 return bus_log_create_error(r);
1445 }
1446
1447 *x = p;
1448 return 0;
1449 }
1450
1451 static int call(sd_bus *bus, char *argv[]) {
1452 _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
1453 _cleanup_bus_message_unref_ sd_bus_message *m = NULL, *reply = NULL;
1454 int r;
1455
1456 assert(bus);
1457
1458 if (strv_length(argv) < 5) {
1459 log_error("Expects at least four arguments.");
1460 return -EINVAL;
1461 }
1462
1463 r = sd_bus_message_new_method_call(bus, &m, argv[1], argv[2], argv[3], argv[4]);
1464 if (r < 0)
1465 return bus_log_create_error(r);
1466
1467 r = sd_bus_message_set_expect_reply(m, arg_expect_reply);
1468 if (r < 0)
1469 return bus_log_create_error(r);
1470
1471 r = sd_bus_message_set_auto_start(m, arg_auto_start);
1472 if (r < 0)
1473 return bus_log_create_error(r);
1474
1475 r = sd_bus_message_set_allow_interactive_authorization(m, arg_allow_interactive_authorization);
1476 if (r < 0)
1477 return bus_log_create_error(r);
1478
1479 if (!isempty(argv[5])) {
1480 char **p;
1481
1482 p = argv+6;
1483
1484 r = message_append_cmdline(m, argv[5], &p);
1485 if (r < 0)
1486 return r;
1487
1488 if (*p) {
1489 log_error("Too many parameters for signature.");
1490 return -EINVAL;
1491 }
1492 }
1493
1494 if (!arg_expect_reply) {
1495 r = sd_bus_send(bus, m, NULL);
1496 if (r < 0) {
1497 log_error("Failed to send message.");
1498 return r;
1499 }
1500
1501 return 0;
1502 }
1503
1504 r = sd_bus_call(bus, m, arg_timeout, &error, &reply);
1505 if (r < 0) {
1506 log_error("%s", bus_error_message(&error, r));
1507 return r;
1508 }
1509
1510 r = sd_bus_message_is_empty(reply);
1511 if (r < 0)
1512 return bus_log_parse_error(r);
1513
1514 if (r == 0 && !arg_quiet) {
1515
1516 if (arg_verbose) {
1517 pager_open_if_enabled();
1518
1519 r = bus_message_dump(reply, stdout, 0);
1520 if (r < 0)
1521 return r;
1522 } else {
1523
1524 fputs(sd_bus_message_get_signature(reply, true), stdout);
1525 fputc(' ', stdout);
1526
1527 r = format_cmdline(reply, stdout, false);
1528 if (r < 0)
1529 return bus_log_parse_error(r);
1530
1531 fputc('\n', stdout);
1532 }
1533 }
1534
1535 return 0;
1536 }
1537
1538 static int get_property(sd_bus *bus, char *argv[]) {
1539 _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
1540 unsigned n;
1541 char **i;
1542 int r;
1543
1544 assert(bus);
1545
1546 n = strv_length(argv);
1547 if (n < 5) {
1548 log_error("Expects at least four arguments.");
1549 return -EINVAL;
1550 }
1551
1552 STRV_FOREACH(i, argv + 4) {
1553 _cleanup_bus_message_unref_ sd_bus_message *reply = NULL;
1554 const char *contents = NULL;
1555 char type;
1556
1557 r = sd_bus_call_method(bus, argv[1], argv[2], "org.freedesktop.DBus.Properties", "Get", &error, &reply, "ss", argv[3], *i);
1558 if (r < 0) {
1559 log_error("%s", bus_error_message(&error, r));
1560 return r;
1561 }
1562
1563 r = sd_bus_message_peek_type(reply, &type, &contents);
1564 if (r < 0)
1565 return bus_log_parse_error(r);
1566
1567 r = sd_bus_message_enter_container(reply, 'v', contents);
1568 if (r < 0)
1569 return bus_log_parse_error(r);
1570
1571 if (arg_verbose) {
1572 pager_open_if_enabled();
1573
1574 r = bus_message_dump(reply, stdout, BUS_MESSAGE_DUMP_SUBTREE_ONLY);
1575 if (r < 0)
1576 return r;
1577 } else {
1578 fputs(contents, stdout);
1579 fputc(' ', stdout);
1580
1581 r = format_cmdline(reply, stdout, false);
1582 if (r < 0)
1583 return bus_log_parse_error(r);
1584
1585 fputc('\n', stdout);
1586 }
1587
1588 r = sd_bus_message_exit_container(reply);
1589 if (r < 0)
1590 return bus_log_parse_error(r);
1591 }
1592
1593 return 0;
1594 }
1595
1596 static int set_property(sd_bus *bus, char *argv[]) {
1597 _cleanup_bus_message_unref_ sd_bus_message *m = NULL;
1598 _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
1599 unsigned n;
1600 char **p;
1601 int r;
1602
1603 assert(bus);
1604
1605 n = strv_length(argv);
1606 if (n < 6) {
1607 log_error("Expects at least five arguments.");
1608 return -EINVAL;
1609 }
1610
1611 r = sd_bus_message_new_method_call(bus, &m, argv[1], argv[2], "org.freedesktop.DBus.Properties", "Set");
1612 if (r < 0)
1613 return bus_log_create_error(r);
1614
1615 r = sd_bus_message_append(m, "ss", argv[3], argv[4]);
1616 if (r < 0)
1617 return bus_log_create_error(r);
1618
1619 r = sd_bus_message_open_container(m, 'v', argv[5]);
1620 if (r < 0)
1621 return bus_log_create_error(r);
1622
1623 p = argv+6;
1624 r = message_append_cmdline(m, argv[5], &p);
1625 if (r < 0)
1626 return r;
1627
1628 r = sd_bus_message_close_container(m);
1629 if (r < 0)
1630 return bus_log_create_error(r);
1631
1632 if (*p) {
1633 log_error("Too many parameters for signature.");
1634 return -EINVAL;
1635 }
1636
1637 r = sd_bus_call(bus, m, arg_timeout, &error, NULL);
1638 if (r < 0) {
1639 log_error("%s", bus_error_message(&error, r));
1640 return r;
1641 }
1642
1643 return 0;
1644 }
1645
1646 static int help(void) {
1647 printf("%s [OPTIONS...] {COMMAND} ...\n\n"
1648 "Introspect the bus.\n\n"
1649 " -h --help Show this help\n"
1650 " --version Show package version\n"
1651 " --no-pager Do not pipe output into a pager\n"
1652 " --no-legend Do not show the headers and footers\n"
1653 " --system Connect to system bus\n"
1654 " --user Connect to user bus\n"
1655 " -H --host=[USER@]HOST Operate on remote host\n"
1656 " -M --machine=CONTAINER Operate on local container\n"
1657 " --address=ADDRESS Connect to bus specified by address\n"
1658 " --show-machine Show machine ID column in list\n"
1659 " --unique Only show unique names\n"
1660 " --acquired Only show acquired names\n"
1661 " --activatable Only show activatable names\n"
1662 " --match=MATCH Only show matching messages\n"
1663 " --list Don't show tree, but simple object path list\n"
1664 " --quiet Don't show method call reply\n"
1665 " --verbose Show result values in long format\n"
1666 " --expect-reply=BOOL Expect a method call reply\n"
1667 " --auto-start=BOOL Auto-start destination service\n"
1668 " --allow-interactive-authorization=BOOL\n"
1669 " Allow interactive authorization for operation\n"
1670 " --timeout=SECS Maximum time to wait for method call completion\n"
1671 " --augment-creds=BOOL Extend credential data with data read from /proc/$PID\n\n"
1672 "Commands:\n"
1673 " list List bus names\n"
1674 " status [SERVICE] Show bus service, process or bus owner credentials\n"
1675 " monitor [SERVICE...] Show bus traffic\n"
1676 " capture [SERVICE...] Capture bus traffic as pcap\n"
1677 " tree [SERVICE...] Show object tree of service\n"
1678 " introspect SERVICE OBJECT\n"
1679 " call SERVICE OBJECT INTERFACE METHOD [SIGNATURE [ARGUMENT...]]\n"
1680 " Call a method\n"
1681 " get-property SERVICE OBJECT INTERFACE PROPERTY...\n"
1682 " Get property value\n"
1683 " set-property SERVICE OBJECT INTERFACE PROPERTY SIGNATURE ARGUMENT...\n"
1684 " Set property value\n"
1685 " help Show this help\n"
1686 , program_invocation_short_name);
1687
1688 return 0;
1689 }
1690
1691 static int parse_argv(int argc, char *argv[]) {
1692
1693 enum {
1694 ARG_VERSION = 0x100,
1695 ARG_NO_PAGER,
1696 ARG_NO_LEGEND,
1697 ARG_SYSTEM,
1698 ARG_USER,
1699 ARG_ADDRESS,
1700 ARG_MATCH,
1701 ARG_SHOW_MACHINE,
1702 ARG_UNIQUE,
1703 ARG_ACQUIRED,
1704 ARG_ACTIVATABLE,
1705 ARG_SIZE,
1706 ARG_LIST,
1707 ARG_VERBOSE,
1708 ARG_EXPECT_REPLY,
1709 ARG_AUTO_START,
1710 ARG_ALLOW_INTERACTIVE_AUTHORIZATION,
1711 ARG_TIMEOUT,
1712 ARG_AUGMENT_CREDS,
1713 };
1714
1715 static const struct option options[] = {
1716 { "help", no_argument, NULL, 'h' },
1717 { "version", no_argument, NULL, ARG_VERSION },
1718 { "no-pager", no_argument, NULL, ARG_NO_PAGER },
1719 { "no-legend", no_argument, NULL, ARG_NO_LEGEND },
1720 { "system", no_argument, NULL, ARG_SYSTEM },
1721 { "user", no_argument, NULL, ARG_USER },
1722 { "address", required_argument, NULL, ARG_ADDRESS },
1723 { "show-machine", no_argument, NULL, ARG_SHOW_MACHINE },
1724 { "unique", no_argument, NULL, ARG_UNIQUE },
1725 { "acquired", no_argument, NULL, ARG_ACQUIRED },
1726 { "activatable", no_argument, NULL, ARG_ACTIVATABLE },
1727 { "match", required_argument, NULL, ARG_MATCH },
1728 { "host", required_argument, NULL, 'H' },
1729 { "machine", required_argument, NULL, 'M' },
1730 { "size", required_argument, NULL, ARG_SIZE },
1731 { "list", no_argument, NULL, ARG_LIST },
1732 { "quiet", no_argument, NULL, 'q' },
1733 { "verbose", no_argument, NULL, ARG_VERBOSE },
1734 { "expect-reply", required_argument, NULL, ARG_EXPECT_REPLY },
1735 { "auto-start", required_argument, NULL, ARG_AUTO_START },
1736 { "allow-interactive-authorization", required_argument, NULL, ARG_ALLOW_INTERACTIVE_AUTHORIZATION },
1737 { "timeout", required_argument, NULL, ARG_TIMEOUT },
1738 { "augment-creds",required_argument, NULL, ARG_AUGMENT_CREDS},
1739 {},
1740 };
1741
1742 int c, r;
1743
1744 assert(argc >= 0);
1745 assert(argv);
1746
1747 while ((c = getopt_long(argc, argv, "hH:M:q", options, NULL)) >= 0)
1748
1749 switch (c) {
1750
1751 case 'h':
1752 return help();
1753
1754 case ARG_VERSION:
1755 puts(PACKAGE_STRING);
1756 puts(SYSTEMD_FEATURES);
1757 return 0;
1758
1759 case ARG_NO_PAGER:
1760 arg_no_pager = true;
1761 break;
1762
1763 case ARG_NO_LEGEND:
1764 arg_legend = false;
1765 break;
1766
1767 case ARG_USER:
1768 arg_user = true;
1769 break;
1770
1771 case ARG_SYSTEM:
1772 arg_user = false;
1773 break;
1774
1775 case ARG_ADDRESS:
1776 arg_address = optarg;
1777 break;
1778
1779 case ARG_SHOW_MACHINE:
1780 arg_show_machine = true;
1781 break;
1782
1783 case ARG_UNIQUE:
1784 arg_unique = true;
1785 break;
1786
1787 case ARG_ACQUIRED:
1788 arg_acquired = true;
1789 break;
1790
1791 case ARG_ACTIVATABLE:
1792 arg_activatable = true;
1793 break;
1794
1795 case ARG_MATCH:
1796 if (strv_extend(&arg_matches, optarg) < 0)
1797 return log_oom();
1798 break;
1799
1800 case ARG_SIZE: {
1801 off_t o;
1802
1803 r = parse_size(optarg, 0, &o);
1804 if (r < 0) {
1805 log_error("Failed to parse size: %s", optarg);
1806 return r;
1807 }
1808
1809 if ((off_t) (size_t) o != o) {
1810 log_error("Size out of range.");
1811 return -E2BIG;
1812 }
1813
1814 arg_snaplen = (size_t) o;
1815 break;
1816 }
1817
1818 case ARG_LIST:
1819 arg_list = true;
1820 break;
1821
1822 case 'H':
1823 arg_transport = BUS_TRANSPORT_REMOTE;
1824 arg_host = optarg;
1825 break;
1826
1827 case 'M':
1828 arg_transport = BUS_TRANSPORT_CONTAINER;
1829 arg_host = optarg;
1830 break;
1831
1832 case 'q':
1833 arg_quiet = true;
1834 break;
1835
1836 case ARG_VERBOSE:
1837 arg_verbose = true;
1838 break;
1839
1840 case ARG_EXPECT_REPLY:
1841 r = parse_boolean(optarg);
1842 if (r < 0) {
1843 log_error("Failed to parse --expect-reply= parameter.");
1844 return r;
1845 }
1846
1847 arg_expect_reply = !!r;
1848 break;
1849
1850
1851 case ARG_AUTO_START:
1852 r = parse_boolean(optarg);
1853 if (r < 0) {
1854 log_error("Failed to parse --auto-start= parameter.");
1855 return r;
1856 }
1857
1858 arg_auto_start = !!r;
1859 break;
1860
1861
1862 case ARG_ALLOW_INTERACTIVE_AUTHORIZATION:
1863 r = parse_boolean(optarg);
1864 if (r < 0) {
1865 log_error("Failed to parse --allow-interactive-authorization= parameter.");
1866 return r;
1867 }
1868
1869 arg_allow_interactive_authorization = !!r;
1870 break;
1871
1872 case ARG_TIMEOUT:
1873 r = parse_sec(optarg, &arg_timeout);
1874 if (r < 0) {
1875 log_error("Failed to parse --timeout= parameter.");
1876 return r;
1877 }
1878
1879 break;
1880
1881 case ARG_AUGMENT_CREDS:
1882 r = parse_boolean(optarg);
1883 if (r < 0) {
1884 log_error("Failed to parse --augment-creds= parameter.");
1885 return r;
1886 }
1887
1888 arg_augment_creds = !!r;
1889 break;
1890
1891 case '?':
1892 return -EINVAL;
1893
1894 default:
1895 assert_not_reached("Unhandled option");
1896 }
1897
1898 return 1;
1899 }
1900
1901 static int busctl_main(sd_bus *bus, int argc, char *argv[]) {
1902 assert(bus);
1903
1904 if (optind >= argc ||
1905 streq(argv[optind], "list"))
1906 return list_bus_names(bus, argv + optind);
1907
1908 if (streq(argv[optind], "monitor"))
1909 return monitor(bus, argv + optind, message_dump);
1910
1911 if (streq(argv[optind], "capture"))
1912 return capture(bus, argv + optind);
1913
1914 if (streq(argv[optind], "status"))
1915 return status(bus, argv + optind);
1916
1917 if (streq(argv[optind], "tree"))
1918 return tree(bus, argv + optind);
1919
1920 if (streq(argv[optind], "introspect"))
1921 return introspect(bus, argv + optind);
1922
1923 if (streq(argv[optind], "call"))
1924 return call(bus, argv + optind);
1925
1926 if (streq(argv[optind], "get-property"))
1927 return get_property(bus, argv + optind);
1928
1929 if (streq(argv[optind], "set-property"))
1930 return set_property(bus, argv + optind);
1931
1932 if (streq(argv[optind], "help"))
1933 return help();
1934
1935 log_error("Unknown command '%s'", argv[optind]);
1936 return -EINVAL;
1937 }
1938
1939 int main(int argc, char *argv[]) {
1940 _cleanup_bus_close_unref_ sd_bus *bus = NULL;
1941 int r;
1942
1943 log_parse_environment();
1944 log_open();
1945
1946 r = parse_argv(argc, argv);
1947 if (r <= 0)
1948 goto finish;
1949
1950 r = sd_bus_new(&bus);
1951 if (r < 0) {
1952 log_error_errno(r, "Failed to allocate bus: %m");
1953 goto finish;
1954 }
1955
1956 if (streq_ptr(argv[optind], "monitor") ||
1957 streq_ptr(argv[optind], "capture")) {
1958
1959 r = sd_bus_set_monitor(bus, true);
1960 if (r < 0) {
1961 log_error_errno(r, "Failed to set monitor mode: %m");
1962 goto finish;
1963 }
1964
1965 r = sd_bus_negotiate_creds(bus, true, _SD_BUS_CREDS_ALL);
1966 if (r < 0) {
1967 log_error_errno(r, "Failed to enable credentials: %m");
1968 goto finish;
1969 }
1970
1971 r = sd_bus_negotiate_timestamp(bus, true);
1972 if (r < 0) {
1973 log_error_errno(r, "Failed to enable timestamps: %m");
1974 goto finish;
1975 }
1976
1977 r = sd_bus_negotiate_fds(bus, true);
1978 if (r < 0) {
1979 log_error_errno(r, "Failed to enable fds: %m");
1980 goto finish;
1981 }
1982 }
1983
1984 if (arg_address)
1985 r = sd_bus_set_address(bus, arg_address);
1986 else {
1987 r = sd_bus_set_bus_client(bus, true);
1988 if (r < 0) {
1989 log_error_errno(r, "Failed to set bus client: %m");
1990 goto finish;
1991 }
1992
1993 switch (arg_transport) {
1994
1995 case BUS_TRANSPORT_LOCAL:
1996 if (arg_user) {
1997 bus->is_user = true;
1998 r = bus_set_address_user(bus);
1999 } else {
2000 bus->is_system = true;
2001 r = bus_set_address_system(bus);
2002 }
2003 break;
2004
2005 case BUS_TRANSPORT_REMOTE:
2006 r = bus_set_address_system_remote(bus, arg_host);
2007 break;
2008
2009 case BUS_TRANSPORT_CONTAINER:
2010 r = bus_set_address_system_container(bus, arg_host);
2011 break;
2012
2013 default:
2014 assert_not_reached("Hmm, unknown transport type.");
2015 }
2016 }
2017 if (r < 0) {
2018 log_error_errno(r, "Failed to set address: %m");
2019 goto finish;
2020 }
2021
2022 r = sd_bus_start(bus);
2023 if (r < 0) {
2024 log_error_errno(r, "Failed to connect to bus: %m");
2025 goto finish;
2026 }
2027
2028 r = busctl_main(bus, argc, argv);
2029
2030 finish:
2031 pager_close();
2032
2033 strv_free(arg_matches);
2034
2035 return r < 0 ? EXIT_FAILURE : EXIT_SUCCESS;
2036 }
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