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util: introduce common version() implementation and use it everywhere
[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 "sd-bus.h"
25
26 #include "bus-dump.h"
27 #include "bus-internal.h"
28 #include "bus-signature.h"
29 #include "bus-type.h"
30 #include "bus-util.h"
31 #include "busctl-introspect.h"
32 #include "log.h"
33 #include "pager.h"
34 #include "path-util.h"
35 #include "set.h"
36 #include "strv.h"
37 #include "terminal-util.h"
38 #include "util.h"
39
40 static bool arg_no_pager = false;
41 static bool arg_legend = true;
42 static char *arg_address = NULL;
43 static bool arg_unique = false;
44 static bool arg_acquired = false;
45 static bool arg_activatable = false;
46 static bool arg_show_machine = false;
47 static char **arg_matches = NULL;
48 static BusTransport arg_transport = BUS_TRANSPORT_LOCAL;
49 static char *arg_host = NULL;
50 static bool arg_user = false;
51 static size_t arg_snaplen = 4096;
52 static bool arg_list = false;
53 static bool arg_quiet = false;
54 static bool arg_verbose = false;
55 static bool arg_expect_reply = true;
56 static bool arg_auto_start = true;
57 static bool arg_allow_interactive_authorization = true;
58 static bool arg_augment_creds = true;
59 static usec_t arg_timeout = 0;
60
61 static void pager_open_if_enabled(void) {
62
63 /* Cache result before we open the pager */
64 if (arg_no_pager)
65 return;
66
67 pager_open(false);
68 }
69
70 #define NAME_IS_ACQUIRED INT_TO_PTR(1)
71 #define NAME_IS_ACTIVATABLE INT_TO_PTR(2)
72
73 static int list_bus_names(sd_bus *bus, char **argv) {
74 _cleanup_strv_free_ char **acquired = NULL, **activatable = NULL;
75 _cleanup_free_ char **merged = NULL;
76 _cleanup_hashmap_free_ Hashmap *names = NULL;
77 char **i;
78 int r;
79 size_t max_i = 0;
80 unsigned n = 0;
81 void *v;
82 char *k;
83 Iterator iterator;
84
85 assert(bus);
86
87 if (!arg_unique && !arg_acquired && !arg_activatable)
88 arg_unique = arg_acquired = arg_activatable = true;
89
90 r = sd_bus_list_names(bus, (arg_acquired || arg_unique) ? &acquired : NULL, arg_activatable ? &activatable : NULL);
91 if (r < 0)
92 return log_error_errno(r, "Failed to list names: %m");
93
94 pager_open_if_enabled();
95
96 names = hashmap_new(&string_hash_ops);
97 if (!names)
98 return log_oom();
99
100 STRV_FOREACH(i, acquired) {
101 max_i = MAX(max_i, strlen(*i));
102
103 r = hashmap_put(names, *i, NAME_IS_ACQUIRED);
104 if (r < 0)
105 return log_error_errno(r, "Failed to add to hashmap: %m");
106 }
107
108 STRV_FOREACH(i, activatable) {
109 max_i = MAX(max_i, strlen(*i));
110
111 r = hashmap_put(names, *i, NAME_IS_ACTIVATABLE);
112 if (r < 0 && r != -EEXIST)
113 return log_error_errno(r, "Failed to add to hashmap: %m");
114 }
115
116 merged = new(char*, hashmap_size(names) + 1);
117 HASHMAP_FOREACH_KEY(v, k, names, iterator)
118 merged[n++] = k;
119
120 merged[n] = NULL;
121 strv_sort(merged);
122
123 if (arg_legend) {
124 printf("%-*s %*s %-*s %-*s %-*s %-*s %-*s %-*s",
125 (int) max_i, "NAME", 10, "PID", 15, "PROCESS", 16, "USER", 13, "CONNECTION", 25, "UNIT", 10, "SESSION", 19, "DESCRIPTION");
126
127 if (arg_show_machine)
128 puts(" MACHINE");
129 else
130 putchar('\n');
131 }
132
133 STRV_FOREACH(i, merged) {
134 _cleanup_bus_creds_unref_ sd_bus_creds *creds = NULL;
135 sd_id128_t mid;
136
137 if (hashmap_get(names, *i) == NAME_IS_ACTIVATABLE) {
138 /* Activatable */
139
140 printf("%-*s", (int) max_i, *i);
141 printf(" - - - (activatable) - - ");
142 if (arg_show_machine)
143 puts(" -");
144 else
145 putchar('\n');
146 continue;
147
148 }
149
150 if (!arg_unique && (*i)[0] == ':')
151 continue;
152
153 if (!arg_acquired && (*i)[0] != ':')
154 continue;
155
156 printf("%-*s", (int) max_i, *i);
157
158 r = sd_bus_get_name_creds(
159 bus, *i,
160 (arg_augment_creds ? SD_BUS_CREDS_AUGMENT : 0) |
161 SD_BUS_CREDS_EUID|SD_BUS_CREDS_PID|SD_BUS_CREDS_COMM|
162 SD_BUS_CREDS_UNIQUE_NAME|SD_BUS_CREDS_UNIT|SD_BUS_CREDS_SESSION|
163 SD_BUS_CREDS_DESCRIPTION, &creds);
164 if (r >= 0) {
165 const char *unique, *session, *unit, *cn;
166 pid_t pid;
167 uid_t uid;
168
169 r = sd_bus_creds_get_pid(creds, &pid);
170 if (r >= 0) {
171 const char *comm = NULL;
172
173 sd_bus_creds_get_comm(creds, &comm);
174
175 printf(" %10lu %-15s", (unsigned long) pid, strna(comm));
176 } else
177 fputs(" - - ", stdout);
178
179 r = sd_bus_creds_get_euid(creds, &uid);
180 if (r >= 0) {
181 _cleanup_free_ char *u = NULL;
182
183 u = uid_to_name(uid);
184 if (!u)
185 return log_oom();
186
187 if (strlen(u) > 16)
188 u[16] = 0;
189
190 printf(" %-16s", u);
191 } else
192 fputs(" - ", stdout);
193
194 r = sd_bus_creds_get_unique_name(creds, &unique);
195 if (r >= 0)
196 printf(" %-13s", unique);
197 else
198 fputs(" - ", stdout);
199
200 r = sd_bus_creds_get_unit(creds, &unit);
201 if (r >= 0) {
202 _cleanup_free_ char *e;
203
204 e = ellipsize(unit, 25, 100);
205 if (!e)
206 return log_oom();
207
208 printf(" %-25s", e);
209 } else
210 fputs(" - ", stdout);
211
212 r = sd_bus_creds_get_session(creds, &session);
213 if (r >= 0)
214 printf(" %-10s", session);
215 else
216 fputs(" - ", stdout);
217
218 r = sd_bus_creds_get_description(creds, &cn);
219 if (r >= 0)
220 printf(" %-19s", cn);
221 else
222 fputs(" - ", stdout);
223
224 } else
225 printf(" - - - - - - - ");
226
227 if (arg_show_machine) {
228 r = sd_bus_get_name_machine_id(bus, *i, &mid);
229 if (r >= 0) {
230 char m[SD_ID128_STRING_MAX];
231 printf(" %s\n", sd_id128_to_string(mid, m));
232 } else
233 puts(" -");
234 } else
235 putchar('\n');
236 }
237
238 return 0;
239 }
240
241 static void print_subtree(const char *prefix, const char *path, char **l) {
242 const char *vertical, *space;
243 char **n;
244
245 /* We assume the list is sorted. Let's first skip over the
246 * entry we are looking at. */
247 for (;;) {
248 if (!*l)
249 return;
250
251 if (!streq(*l, path))
252 break;
253
254 l++;
255 }
256
257 vertical = strjoina(prefix, draw_special_char(DRAW_TREE_VERTICAL));
258 space = strjoina(prefix, draw_special_char(DRAW_TREE_SPACE));
259
260 for (;;) {
261 bool has_more = false;
262
263 if (!*l || !path_startswith(*l, path))
264 break;
265
266 n = l + 1;
267 for (;;) {
268 if (!*n || !path_startswith(*n, path))
269 break;
270
271 if (!path_startswith(*n, *l)) {
272 has_more = true;
273 break;
274 }
275
276 n++;
277 }
278
279 printf("%s%s%s\n", prefix, draw_special_char(has_more ? DRAW_TREE_BRANCH : DRAW_TREE_RIGHT), *l);
280
281 print_subtree(has_more ? vertical : space, *l, l);
282 l = n;
283 }
284 }
285
286 static void print_tree(const char *prefix, char **l) {
287
288 pager_open_if_enabled();
289
290 prefix = strempty(prefix);
291
292 if (arg_list) {
293 char **i;
294
295 STRV_FOREACH(i, l)
296 printf("%s%s\n", prefix, *i);
297 return;
298 }
299
300 if (strv_isempty(l)) {
301 printf("No objects discovered.\n");
302 return;
303 }
304
305 if (streq(l[0], "/") && !l[1]) {
306 printf("Only root object discovered.\n");
307 return;
308 }
309
310 print_subtree(prefix, "/", l);
311 }
312
313 static int on_path(const char *path, void *userdata) {
314 Set *paths = userdata;
315 int r;
316
317 assert(paths);
318
319 r = set_put_strdup(paths, path);
320 if (r < 0)
321 return log_oom();
322
323 return 0;
324 }
325
326 static int find_nodes(sd_bus *bus, const char *service, const char *path, Set *paths, bool many) {
327 static const XMLIntrospectOps ops = {
328 .on_path = on_path,
329 };
330
331 _cleanup_bus_message_unref_ sd_bus_message *reply = NULL;
332 _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
333 const char *xml;
334 int r;
335
336 r = sd_bus_call_method(bus, service, path, "org.freedesktop.DBus.Introspectable", "Introspect", &error, &reply, "");
337 if (r < 0) {
338 if (many)
339 printf("Failed to introspect object %s of service %s: %s\n", path, service, bus_error_message(&error, r));
340 else
341 log_error("Failed to introspect object %s of service %s: %s", path, service, bus_error_message(&error, r));
342 return r;
343 }
344
345 r = sd_bus_message_read(reply, "s", &xml);
346 if (r < 0)
347 return bus_log_parse_error(r);
348
349 return parse_xml_introspect(path, xml, &ops, paths);
350 }
351
352 static int tree_one(sd_bus *bus, const char *service, const char *prefix, bool many) {
353 _cleanup_set_free_free_ Set *paths = NULL, *done = NULL, *failed = NULL;
354 _cleanup_free_ char **l = NULL;
355 char *m;
356 int r;
357
358 paths = set_new(&string_hash_ops);
359 if (!paths)
360 return log_oom();
361
362 done = set_new(&string_hash_ops);
363 if (!done)
364 return log_oom();
365
366 failed = set_new(&string_hash_ops);
367 if (!failed)
368 return log_oom();
369
370 m = strdup("/");
371 if (!m)
372 return log_oom();
373
374 r = set_put(paths, m);
375 if (r < 0) {
376 free(m);
377 return log_oom();
378 }
379
380 for (;;) {
381 _cleanup_free_ char *p = NULL;
382 int q;
383
384 p = set_steal_first(paths);
385 if (!p)
386 break;
387
388 if (set_contains(done, p) ||
389 set_contains(failed, p))
390 continue;
391
392 q = find_nodes(bus, service, p, paths, many);
393 if (q < 0) {
394 if (r >= 0)
395 r = q;
396
397 q = set_put(failed, p);
398 } else
399 q = set_put(done, p);
400
401 if (q < 0)
402 return log_oom();
403
404 assert(q != 0);
405 p = NULL;
406 }
407
408 pager_open_if_enabled();
409
410 l = set_get_strv(done);
411 if (!l)
412 return log_oom();
413
414 strv_sort(l);
415 print_tree(prefix, l);
416
417 fflush(stdout);
418
419 return r;
420 }
421
422 static int tree(sd_bus *bus, char **argv) {
423 char **i;
424 int r = 0;
425
426 if (!arg_unique && !arg_acquired)
427 arg_acquired = true;
428
429 if (strv_length(argv) <= 1) {
430 _cleanup_strv_free_ char **names = NULL;
431 bool not_first = false;
432
433 r = sd_bus_list_names(bus, &names, NULL);
434 if (r < 0)
435 return log_error_errno(r, "Failed to get name list: %m");
436
437 pager_open_if_enabled();
438
439 STRV_FOREACH(i, names) {
440 int q;
441
442 if (!arg_unique && (*i)[0] == ':')
443 continue;
444
445 if (!arg_acquired && (*i)[0] == ':')
446 continue;
447
448 if (not_first)
449 printf("\n");
450
451 printf("Service %s%s%s:\n", ansi_highlight(), *i, ansi_normal());
452
453 q = tree_one(bus, *i, NULL, true);
454 if (q < 0 && r >= 0)
455 r = q;
456
457 not_first = true;
458 }
459 } else {
460 STRV_FOREACH(i, argv+1) {
461 int q;
462
463 if (i > argv+1)
464 printf("\n");
465
466 if (argv[2]) {
467 pager_open_if_enabled();
468 printf("Service %s%s%s:\n", ansi_highlight(), *i, ansi_normal());
469 }
470
471 q = tree_one(bus, *i, NULL, !!argv[2]);
472 if (q < 0 && r >= 0)
473 r = q;
474 }
475 }
476
477 return r;
478 }
479
480 static int format_cmdline(sd_bus_message *m, FILE *f, bool needs_space) {
481 int r;
482
483 for (;;) {
484 const char *contents = NULL;
485 char type;
486 union {
487 uint8_t u8;
488 uint16_t u16;
489 int16_t s16;
490 uint32_t u32;
491 int32_t s32;
492 uint64_t u64;
493 int64_t s64;
494 double d64;
495 const char *string;
496 int i;
497 } basic;
498
499 r = sd_bus_message_peek_type(m, &type, &contents);
500 if (r <= 0)
501 return r;
502
503 if (bus_type_is_container(type) > 0) {
504
505 r = sd_bus_message_enter_container(m, type, contents);
506 if (r < 0)
507 return r;
508
509 if (type == SD_BUS_TYPE_ARRAY) {
510 unsigned n = 0;
511
512 /* count array entries */
513 for (;;) {
514
515 r = sd_bus_message_skip(m, contents);
516 if (r < 0)
517 return r;
518 if (r == 0)
519 break;
520
521 n++;
522 }
523
524 r = sd_bus_message_rewind(m, false);
525 if (r < 0)
526 return r;
527
528 if (needs_space)
529 fputc(' ', f);
530
531 fprintf(f, "%u", n);
532 } else if (type == SD_BUS_TYPE_VARIANT) {
533
534 if (needs_space)
535 fputc(' ', f);
536
537 fprintf(f, "%s", contents);
538 }
539
540 r = format_cmdline(m, f, needs_space || IN_SET(type, SD_BUS_TYPE_ARRAY, SD_BUS_TYPE_VARIANT));
541 if (r < 0)
542 return r;
543
544 r = sd_bus_message_exit_container(m);
545 if (r < 0)
546 return r;
547
548 continue;
549 }
550
551 r = sd_bus_message_read_basic(m, type, &basic);
552 if (r < 0)
553 return r;
554
555 if (needs_space)
556 fputc(' ', f);
557
558 switch (type) {
559 case SD_BUS_TYPE_BYTE:
560 fprintf(f, "%u", basic.u8);
561 break;
562
563 case SD_BUS_TYPE_BOOLEAN:
564 fputs(true_false(basic.i), f);
565 break;
566
567 case SD_BUS_TYPE_INT16:
568 fprintf(f, "%i", basic.s16);
569 break;
570
571 case SD_BUS_TYPE_UINT16:
572 fprintf(f, "%u", basic.u16);
573 break;
574
575 case SD_BUS_TYPE_INT32:
576 fprintf(f, "%i", basic.s32);
577 break;
578
579 case SD_BUS_TYPE_UINT32:
580 fprintf(f, "%u", basic.u32);
581 break;
582
583 case SD_BUS_TYPE_INT64:
584 fprintf(f, "%" PRIi64, basic.s64);
585 break;
586
587 case SD_BUS_TYPE_UINT64:
588 fprintf(f, "%" PRIu64, basic.u64);
589 break;
590
591 case SD_BUS_TYPE_DOUBLE:
592 fprintf(f, "%g", basic.d64);
593 break;
594
595 case SD_BUS_TYPE_STRING:
596 case SD_BUS_TYPE_OBJECT_PATH:
597 case SD_BUS_TYPE_SIGNATURE: {
598 _cleanup_free_ char *b = NULL;
599
600 b = cescape(basic.string);
601 if (!b)
602 return -ENOMEM;
603
604 fprintf(f, "\"%s\"", b);
605 break;
606 }
607
608 case SD_BUS_TYPE_UNIX_FD:
609 fprintf(f, "%i", basic.i);
610 break;
611
612 default:
613 assert_not_reached("Unknown basic type.");
614 }
615
616 needs_space = true;
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 d = strcmp_ptr(x->interface, y->interface);
659 if (d != 0)
660 return d;
661
662 d = strcmp(x->type, y->type);
663 if (d != 0)
664 return d;
665
666 return strcmp_ptr(x->name, y->name);
667 }
668
669 static int member_compare_funcp(const void *a, const void *b) {
670 const Member *const * x = (const Member *const *) a, * const *y = (const Member *const *) b;
671
672 return member_compare_func(*x, *y);
673 }
674
675 static void member_free(Member *m) {
676 if (!m)
677 return;
678
679 free(m->interface);
680 free(m->name);
681 free(m->signature);
682 free(m->result);
683 free(m->value);
684 free(m);
685 }
686
687 DEFINE_TRIVIAL_CLEANUP_FUNC(Member*, member_free);
688
689 static void member_set_free(Set *s) {
690 Member *m;
691
692 while ((m = set_steal_first(s)))
693 member_free(m);
694
695 set_free(s);
696 }
697
698 DEFINE_TRIVIAL_CLEANUP_FUNC(Set*, member_set_free);
699
700 static int on_interface(const char *interface, uint64_t flags, void *userdata) {
701 _cleanup_(member_freep) Member *m;
702 Set *members = userdata;
703 int r;
704
705 assert(interface);
706 assert(members);
707
708 m = new0(Member, 1);
709 if (!m)
710 return log_oom();
711
712 m->type = "interface";
713 m->flags = flags;
714
715 r = free_and_strdup(&m->interface, interface);
716 if (r < 0)
717 return log_oom();
718
719 r = set_put(members, m);
720 if (r <= 0) {
721 log_error("Duplicate interface");
722 return -EINVAL;
723 }
724
725 m = NULL;
726 return 0;
727 }
728
729 static int on_method(const char *interface, const char *name, const char *signature, const char *result, uint64_t flags, void *userdata) {
730 _cleanup_(member_freep) Member *m;
731 Set *members = userdata;
732 int r;
733
734 assert(interface);
735 assert(name);
736
737 m = new0(Member, 1);
738 if (!m)
739 return log_oom();
740
741 m->type = "method";
742 m->flags = flags;
743
744 r = free_and_strdup(&m->interface, interface);
745 if (r < 0)
746 return log_oom();
747
748 r = free_and_strdup(&m->name, name);
749 if (r < 0)
750 return log_oom();
751
752 r = free_and_strdup(&m->signature, signature);
753 if (r < 0)
754 return log_oom();
755
756 r = free_and_strdup(&m->result, result);
757 if (r < 0)
758 return log_oom();
759
760 r = set_put(members, m);
761 if (r <= 0) {
762 log_error("Duplicate method");
763 return -EINVAL;
764 }
765
766 m = NULL;
767 return 0;
768 }
769
770 static int on_signal(const char *interface, const char *name, const char *signature, uint64_t flags, void *userdata) {
771 _cleanup_(member_freep) Member *m;
772 Set *members = userdata;
773 int r;
774
775 assert(interface);
776 assert(name);
777
778 m = new0(Member, 1);
779 if (!m)
780 return log_oom();
781
782 m->type = "signal";
783 m->flags = flags;
784
785 r = free_and_strdup(&m->interface, interface);
786 if (r < 0)
787 return log_oom();
788
789 r = free_and_strdup(&m->name, name);
790 if (r < 0)
791 return log_oom();
792
793 r = free_and_strdup(&m->signature, signature);
794 if (r < 0)
795 return log_oom();
796
797 r = set_put(members, m);
798 if (r <= 0) {
799 log_error("Duplicate signal");
800 return -EINVAL;
801 }
802
803 m = NULL;
804 return 0;
805 }
806
807 static int on_property(const char *interface, const char *name, const char *signature, bool writable, uint64_t flags, void *userdata) {
808 _cleanup_(member_freep) Member *m;
809 Set *members = userdata;
810 int r;
811
812 assert(interface);
813 assert(name);
814
815 m = new0(Member, 1);
816 if (!m)
817 return log_oom();
818
819 m->type = "property";
820 m->flags = flags;
821 m->writable = writable;
822
823 r = free_and_strdup(&m->interface, interface);
824 if (r < 0)
825 return log_oom();
826
827 r = free_and_strdup(&m->name, name);
828 if (r < 0)
829 return log_oom();
830
831 r = free_and_strdup(&m->signature, signature);
832 if (r < 0)
833 return log_oom();
834
835 r = set_put(members, m);
836 if (r <= 0) {
837 log_error("Duplicate property");
838 return -EINVAL;
839 }
840
841 m = NULL;
842 return 0;
843 }
844
845 static const char *strdash(const char *x) {
846 return isempty(x) ? "-" : x;
847 }
848
849 static int introspect(sd_bus *bus, char **argv) {
850 static const struct hash_ops member_hash_ops = {
851 .hash = member_hash_func,
852 .compare = member_compare_func,
853 };
854
855 static const XMLIntrospectOps ops = {
856 .on_interface = on_interface,
857 .on_method = on_method,
858 .on_signal = on_signal,
859 .on_property = on_property,
860 };
861
862 _cleanup_bus_message_unref_ sd_bus_message *reply = NULL;
863 _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
864 _cleanup_(member_set_freep) Set *members = NULL;
865 Iterator i;
866 Member *m;
867 const char *xml;
868 int r;
869 unsigned name_width, type_width, signature_width, result_width;
870 Member **sorted = NULL;
871 unsigned k = 0, j, n_args;
872
873 n_args = strv_length(argv);
874 if (n_args < 3) {
875 log_error("Requires service and object path argument.");
876 return -EINVAL;
877 }
878
879 if (n_args > 4) {
880 log_error("Too many arguments.");
881 return -EINVAL;
882 }
883
884 members = set_new(&member_hash_ops);
885 if (!members)
886 return log_oom();
887
888 r = sd_bus_call_method(bus, argv[1], argv[2], "org.freedesktop.DBus.Introspectable", "Introspect", &error, &reply, "");
889 if (r < 0) {
890 log_error("Failed to introspect object %s of service %s: %s", argv[2], argv[1], bus_error_message(&error, r));
891 return r;
892 }
893
894 r = sd_bus_message_read(reply, "s", &xml);
895 if (r < 0)
896 return bus_log_parse_error(r);
897
898 /* First, get list of all properties */
899 r = parse_xml_introspect(argv[2], xml, &ops, members);
900 if (r < 0)
901 return r;
902
903 /* Second, find the current values for them */
904 SET_FOREACH(m, members, i) {
905
906 if (!streq(m->type, "property"))
907 continue;
908
909 if (m->value)
910 continue;
911
912 if (argv[3] && !streq(argv[3], m->interface))
913 continue;
914
915 r = sd_bus_call_method(bus, argv[1], argv[2], "org.freedesktop.DBus.Properties", "GetAll", &error, &reply, "s", m->interface);
916 if (r < 0) {
917 log_error("%s", bus_error_message(&error, r));
918 return r;
919 }
920
921 r = sd_bus_message_enter_container(reply, 'a', "{sv}");
922 if (r < 0)
923 return bus_log_parse_error(r);
924
925 for (;;) {
926 Member *z;
927 _cleanup_free_ char *buf = NULL;
928 _cleanup_fclose_ FILE *mf = NULL;
929 size_t sz = 0;
930 const char *name;
931
932 r = sd_bus_message_enter_container(reply, 'e', "sv");
933 if (r < 0)
934 return bus_log_parse_error(r);
935
936 if (r == 0)
937 break;
938
939 r = sd_bus_message_read(reply, "s", &name);
940 if (r < 0)
941 return bus_log_parse_error(r);
942
943 r = sd_bus_message_enter_container(reply, 'v', NULL);
944 if (r < 0)
945 return bus_log_parse_error(r);
946
947 mf = open_memstream(&buf, &sz);
948 if (!mf)
949 return log_oom();
950
951 r = format_cmdline(reply, mf, false);
952 if (r < 0)
953 return bus_log_parse_error(r);
954
955 fclose(mf);
956 mf = NULL;
957
958 z = set_get(members, &((Member) {
959 .type = "property",
960 .interface = m->interface,
961 .name = (char*) name }));
962 if (z) {
963 free(z->value);
964 z->value = buf;
965 buf = NULL;
966 }
967
968 r = sd_bus_message_exit_container(reply);
969 if (r < 0)
970 return bus_log_parse_error(r);
971
972 r = sd_bus_message_exit_container(reply);
973 if (r < 0)
974 return bus_log_parse_error(r);
975 }
976
977 r = sd_bus_message_exit_container(reply);
978 if (r < 0)
979 return bus_log_parse_error(r);
980 }
981
982 pager_open_if_enabled();
983
984 name_width = strlen("NAME");
985 type_width = strlen("TYPE");
986 signature_width = strlen("SIGNATURE");
987 result_width = strlen("RESULT/VALUE");
988
989 sorted = newa(Member*, set_size(members));
990
991 SET_FOREACH(m, members, i) {
992
993 if (argv[3] && !streq(argv[3], m->interface))
994 continue;
995
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 qsort(sorted, k, sizeof(Member*), member_compare_funcp);
1016
1017 if (arg_legend) {
1018 printf("%-*s %-*s %-*s %-*s %s\n",
1019 (int) name_width, "NAME",
1020 (int) type_width, "TYPE",
1021 (int) signature_width, "SIGNATURE",
1022 (int) result_width, "RESULT/VALUE",
1023 "FLAGS");
1024 }
1025
1026 for (j = 0; j < k; j++) {
1027 _cleanup_free_ char *ellipsized = NULL;
1028 const char *rv;
1029 bool is_interface;
1030
1031 m = sorted[j];
1032
1033 if (argv[3] && !streq(argv[3], m->interface))
1034 continue;
1035
1036 is_interface = streq(m->type, "interface");
1037
1038 if (argv[3] && is_interface)
1039 continue;
1040
1041 if (m->value) {
1042 ellipsized = ellipsize(m->value, result_width, 100);
1043 if (!ellipsized)
1044 return log_oom();
1045
1046 rv = ellipsized;
1047 } else
1048 rv = strdash(m->result);
1049
1050 printf("%s%s%-*s%s %-*s %-*s %-*s%s%s%s%s%s%s\n",
1051 is_interface ? ansi_highlight() : "",
1052 is_interface ? "" : ".",
1053 - !is_interface + (int) name_width, strdash(streq_ptr(m->type, "interface") ? m->interface : m->name),
1054 is_interface ? ansi_normal() : "",
1055 (int) type_width, strdash(m->type),
1056 (int) signature_width, strdash(m->signature),
1057 (int) result_width, rv,
1058 (m->flags & SD_BUS_VTABLE_DEPRECATED) ? " deprecated" : (m->flags || m->writable ? "" : " -"),
1059 (m->flags & SD_BUS_VTABLE_METHOD_NO_REPLY) ? " no-reply" : "",
1060 (m->flags & SD_BUS_VTABLE_PROPERTY_CONST) ? " const" : "",
1061 (m->flags & SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE) ? " emits-change" : "",
1062 (m->flags & SD_BUS_VTABLE_PROPERTY_EMITS_INVALIDATION) ? " emits-invalidation" : "",
1063 m->writable ? " writable" : "");
1064 }
1065
1066 return 0;
1067 }
1068
1069 static int message_dump(sd_bus_message *m, FILE *f) {
1070 return bus_message_dump(m, f, BUS_MESSAGE_DUMP_WITH_HEADER);
1071 }
1072
1073 static int message_pcap(sd_bus_message *m, FILE *f) {
1074 return bus_message_pcap_frame(m, arg_snaplen, f);
1075 }
1076
1077 static int monitor(sd_bus *bus, char *argv[], int (*dump)(sd_bus_message *m, FILE *f)) {
1078 bool added_something = false;
1079 char **i;
1080 int r;
1081
1082 STRV_FOREACH(i, argv+1) {
1083 _cleanup_free_ char *m = NULL;
1084
1085 if (!service_name_is_valid(*i)) {
1086 log_error("Invalid service name '%s'", *i);
1087 return -EINVAL;
1088 }
1089
1090 m = strjoin("sender='", *i, "'", NULL);
1091 if (!m)
1092 return log_oom();
1093
1094 r = sd_bus_add_match(bus, NULL, m, NULL, NULL);
1095 if (r < 0)
1096 return log_error_errno(r, "Failed to add match: %m");
1097
1098 free(m);
1099 m = strjoin("destination='", *i, "'", NULL);
1100 if (!m)
1101 return log_oom();
1102
1103 r = sd_bus_add_match(bus, NULL, m, NULL, NULL);
1104 if (r < 0)
1105 return log_error_errno(r, "Failed to add match: %m");
1106
1107 added_something = true;
1108 }
1109
1110 STRV_FOREACH(i, arg_matches) {
1111 r = sd_bus_add_match(bus, NULL, *i, NULL, NULL);
1112 if (r < 0)
1113 return log_error_errno(r, "Failed to add match: %m");
1114
1115 added_something = true;
1116 }
1117
1118 if (!added_something) {
1119 r = sd_bus_add_match(bus, NULL, "", NULL, NULL);
1120 if (r < 0)
1121 return log_error_errno(r, "Failed to add match: %m");
1122 }
1123
1124 log_info("Monitoring bus message stream.");
1125
1126 for (;;) {
1127 _cleanup_bus_message_unref_ sd_bus_message *m = NULL;
1128
1129 r = sd_bus_process(bus, &m);
1130 if (r < 0)
1131 return log_error_errno(r, "Failed to process bus: %m");
1132
1133 if (m) {
1134 dump(m, stdout);
1135 fflush(stdout);
1136
1137 if (sd_bus_message_is_signal(m, "org.freedesktop.DBus.Local", "Disconnected") > 0) {
1138 log_info("Connection terminated, exiting.");
1139 return 0;
1140 }
1141
1142 continue;
1143 }
1144
1145 if (r > 0)
1146 continue;
1147
1148 r = sd_bus_wait(bus, (uint64_t) -1);
1149 if (r < 0)
1150 return log_error_errno(r, "Failed to wait for bus: %m");
1151 }
1152 }
1153
1154 static int capture(sd_bus *bus, char *argv[]) {
1155 int r;
1156
1157 if (isatty(fileno(stdout)) > 0) {
1158 log_error("Refusing to write message data to console, please redirect output to a file.");
1159 return -EINVAL;
1160 }
1161
1162 bus_pcap_header(arg_snaplen, stdout);
1163
1164 r = monitor(bus, argv, message_pcap);
1165 if (r < 0)
1166 return r;
1167
1168 if (ferror(stdout)) {
1169 log_error("Couldn't write capture file.");
1170 return -EIO;
1171 }
1172
1173 return r;
1174 }
1175
1176 static int status(sd_bus *bus, char *argv[]) {
1177 _cleanup_bus_creds_unref_ sd_bus_creds *creds = NULL;
1178 pid_t pid;
1179 int r;
1180
1181 assert(bus);
1182
1183 if (strv_length(argv) > 2) {
1184 log_error("Expects no or one argument.");
1185 return -EINVAL;
1186 }
1187
1188 if (argv[1]) {
1189 r = parse_pid(argv[1], &pid);
1190 if (r < 0)
1191 r = sd_bus_get_name_creds(
1192 bus,
1193 argv[1],
1194 (arg_augment_creds ? SD_BUS_CREDS_AUGMENT : 0) | _SD_BUS_CREDS_ALL,
1195 &creds);
1196 else
1197 r = sd_bus_creds_new_from_pid(
1198 &creds,
1199 pid,
1200 _SD_BUS_CREDS_ALL);
1201 } else {
1202 const char *scope, *address;
1203 sd_id128_t bus_id;
1204
1205 r = sd_bus_get_address(bus, &address);
1206 if (r >= 0)
1207 printf("BusAddress=%s%s%s\n", ansi_highlight(), address, ansi_normal());
1208
1209 r = sd_bus_get_scope(bus, &scope);
1210 if (r >= 0)
1211 printf("BusScope=%s%s%s\n", ansi_highlight(), scope, ansi_normal());
1212
1213 r = sd_bus_get_bus_id(bus, &bus_id);
1214 if (r >= 0)
1215 printf("BusID=%s" SD_ID128_FORMAT_STR "%s\n", ansi_highlight(), SD_ID128_FORMAT_VAL(bus_id), ansi_normal());
1216
1217 r = sd_bus_get_owner_creds(
1218 bus,
1219 (arg_augment_creds ? SD_BUS_CREDS_AUGMENT : 0) | _SD_BUS_CREDS_ALL,
1220 &creds);
1221 }
1222
1223 if (r < 0)
1224 return log_error_errno(r, "Failed to get credentials: %m");
1225
1226 bus_creds_dump(creds, NULL, false);
1227 return 0;
1228 }
1229
1230 static int message_append_cmdline(sd_bus_message *m, const char *signature, char ***x) {
1231 char **p;
1232 int r;
1233
1234 assert(m);
1235 assert(signature);
1236 assert(x);
1237
1238 p = *x;
1239
1240 for (;;) {
1241 const char *v;
1242 char t;
1243
1244 t = *signature;
1245 v = *p;
1246
1247 if (t == 0)
1248 break;
1249 if (!v) {
1250 log_error("Too few parameters for signature.");
1251 return -EINVAL;
1252 }
1253
1254 signature++;
1255 p++;
1256
1257 switch (t) {
1258
1259 case SD_BUS_TYPE_BOOLEAN:
1260
1261 r = parse_boolean(v);
1262 if (r < 0) {
1263 log_error("Failed to parse as boolean: %s", v);
1264 return r;
1265 }
1266
1267 r = sd_bus_message_append_basic(m, t, &r);
1268 break;
1269
1270 case SD_BUS_TYPE_BYTE: {
1271 uint8_t z;
1272
1273 r = safe_atou8(v, &z);
1274 if (r < 0) {
1275 log_error("Failed to parse as byte (unsigned 8bit integer): %s", v);
1276 return r;
1277 }
1278
1279 r = sd_bus_message_append_basic(m, t, &z);
1280 break;
1281 }
1282
1283 case SD_BUS_TYPE_INT16: {
1284 int16_t z;
1285
1286 r = safe_atoi16(v, &z);
1287 if (r < 0) {
1288 log_error("Failed to parse as signed 16bit integer: %s", v);
1289 return r;
1290 }
1291
1292 r = sd_bus_message_append_basic(m, t, &z);
1293 break;
1294 }
1295
1296 case SD_BUS_TYPE_UINT16: {
1297 uint16_t z;
1298
1299 r = safe_atou16(v, &z);
1300 if (r < 0) {
1301 log_error("Failed to parse as unsigned 16bit integer: %s", v);
1302 return r;
1303 }
1304
1305 r = sd_bus_message_append_basic(m, t, &z);
1306 break;
1307 }
1308
1309 case SD_BUS_TYPE_INT32: {
1310 int32_t z;
1311
1312 r = safe_atoi32(v, &z);
1313 if (r < 0) {
1314 log_error("Failed to parse as signed 32bit integer: %s", v);
1315 return r;
1316 }
1317
1318 r = sd_bus_message_append_basic(m, t, &z);
1319 break;
1320 }
1321
1322 case SD_BUS_TYPE_UINT32: {
1323 uint32_t z;
1324
1325 r = safe_atou32(v, &z);
1326 if (r < 0) {
1327 log_error("Failed to parse as unsigned 32bit integer: %s", v);
1328 return r;
1329 }
1330
1331 r = sd_bus_message_append_basic(m, t, &z);
1332 break;
1333 }
1334
1335 case SD_BUS_TYPE_INT64: {
1336 int64_t z;
1337
1338 r = safe_atoi64(v, &z);
1339 if (r < 0) {
1340 log_error("Failed to parse as signed 64bit integer: %s", v);
1341 return r;
1342 }
1343
1344 r = sd_bus_message_append_basic(m, t, &z);
1345 break;
1346 }
1347
1348 case SD_BUS_TYPE_UINT64: {
1349 uint64_t z;
1350
1351 r = safe_atou64(v, &z);
1352 if (r < 0) {
1353 log_error("Failed to parse as unsigned 64bit integer: %s", v);
1354 return r;
1355 }
1356
1357 r = sd_bus_message_append_basic(m, t, &z);
1358 break;
1359 }
1360
1361
1362 case SD_BUS_TYPE_DOUBLE: {
1363 double z;
1364
1365 r = safe_atod(v, &z);
1366 if (r < 0) {
1367 log_error("Failed to parse as double precision floating point: %s", v);
1368 return r;
1369 }
1370
1371 r = sd_bus_message_append_basic(m, t, &z);
1372 break;
1373 }
1374
1375 case SD_BUS_TYPE_STRING:
1376 case SD_BUS_TYPE_OBJECT_PATH:
1377 case SD_BUS_TYPE_SIGNATURE:
1378
1379 r = sd_bus_message_append_basic(m, t, v);
1380 break;
1381
1382 case SD_BUS_TYPE_ARRAY: {
1383 uint32_t n;
1384 size_t k;
1385
1386 r = safe_atou32(v, &n);
1387 if (r < 0) {
1388 log_error("Failed to parse number of array entries: %s", v);
1389 return r;
1390 }
1391
1392 r = signature_element_length(signature, &k);
1393 if (r < 0) {
1394 log_error("Invalid array signature.");
1395 return r;
1396 }
1397
1398 {
1399 unsigned i;
1400 char s[k + 1];
1401 memcpy(s, signature, k);
1402 s[k] = 0;
1403
1404 r = sd_bus_message_open_container(m, SD_BUS_TYPE_ARRAY, s);
1405 if (r < 0)
1406 return bus_log_create_error(r);
1407
1408 for (i = 0; i < n; i++) {
1409 r = message_append_cmdline(m, s, &p);
1410 if (r < 0)
1411 return r;
1412 }
1413 }
1414
1415 signature += k;
1416
1417 r = sd_bus_message_close_container(m);
1418 break;
1419 }
1420
1421 case SD_BUS_TYPE_VARIANT:
1422 r = sd_bus_message_open_container(m, SD_BUS_TYPE_VARIANT, v);
1423 if (r < 0)
1424 return bus_log_create_error(r);
1425
1426 r = message_append_cmdline(m, v, &p);
1427 if (r < 0)
1428 return r;
1429
1430 r = sd_bus_message_close_container(m);
1431 break;
1432
1433 case SD_BUS_TYPE_STRUCT_BEGIN:
1434 case SD_BUS_TYPE_DICT_ENTRY_BEGIN: {
1435 size_t k;
1436
1437 signature--;
1438 p--;
1439
1440 r = signature_element_length(signature, &k);
1441 if (r < 0) {
1442 log_error("Invalid struct/dict entry signature.");
1443 return r;
1444 }
1445
1446 {
1447 char s[k-1];
1448 memcpy(s, signature + 1, k - 2);
1449 s[k - 2] = 0;
1450
1451 r = sd_bus_message_open_container(m, t == SD_BUS_TYPE_STRUCT_BEGIN ? SD_BUS_TYPE_STRUCT : SD_BUS_TYPE_DICT_ENTRY, s);
1452 if (r < 0)
1453 return bus_log_create_error(r);
1454
1455 r = message_append_cmdline(m, s, &p);
1456 if (r < 0)
1457 return r;
1458 }
1459
1460 signature += k;
1461
1462 r = sd_bus_message_close_container(m);
1463 break;
1464 }
1465
1466 case SD_BUS_TYPE_UNIX_FD:
1467 log_error("UNIX file descriptor not supported as type.");
1468 return -EINVAL;
1469
1470 default:
1471 log_error("Unknown signature type %c.", t);
1472 return -EINVAL;
1473 }
1474
1475 if (r < 0)
1476 return bus_log_create_error(r);
1477 }
1478
1479 *x = p;
1480 return 0;
1481 }
1482
1483 static int call(sd_bus *bus, char *argv[]) {
1484 _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
1485 _cleanup_bus_message_unref_ sd_bus_message *m = NULL, *reply = NULL;
1486 int r;
1487
1488 assert(bus);
1489
1490 if (strv_length(argv) < 5) {
1491 log_error("Expects at least four arguments.");
1492 return -EINVAL;
1493 }
1494
1495 r = sd_bus_message_new_method_call(bus, &m, argv[1], argv[2], argv[3], argv[4]);
1496 if (r < 0)
1497 return bus_log_create_error(r);
1498
1499 r = sd_bus_message_set_expect_reply(m, arg_expect_reply);
1500 if (r < 0)
1501 return bus_log_create_error(r);
1502
1503 r = sd_bus_message_set_auto_start(m, arg_auto_start);
1504 if (r < 0)
1505 return bus_log_create_error(r);
1506
1507 r = sd_bus_message_set_allow_interactive_authorization(m, arg_allow_interactive_authorization);
1508 if (r < 0)
1509 return bus_log_create_error(r);
1510
1511 if (!isempty(argv[5])) {
1512 char **p;
1513
1514 p = argv+6;
1515
1516 r = message_append_cmdline(m, argv[5], &p);
1517 if (r < 0)
1518 return r;
1519
1520 if (*p) {
1521 log_error("Too many parameters for signature.");
1522 return -EINVAL;
1523 }
1524 }
1525
1526 if (!arg_expect_reply) {
1527 r = sd_bus_send(bus, m, NULL);
1528 if (r < 0) {
1529 log_error("Failed to send message.");
1530 return r;
1531 }
1532
1533 return 0;
1534 }
1535
1536 r = sd_bus_call(bus, m, arg_timeout, &error, &reply);
1537 if (r < 0) {
1538 log_error("%s", bus_error_message(&error, r));
1539 return r;
1540 }
1541
1542 r = sd_bus_message_is_empty(reply);
1543 if (r < 0)
1544 return bus_log_parse_error(r);
1545
1546 if (r == 0 && !arg_quiet) {
1547
1548 if (arg_verbose) {
1549 pager_open_if_enabled();
1550
1551 r = bus_message_dump(reply, stdout, 0);
1552 if (r < 0)
1553 return r;
1554 } else {
1555
1556 fputs(sd_bus_message_get_signature(reply, true), stdout);
1557 fputc(' ', stdout);
1558
1559 r = format_cmdline(reply, stdout, false);
1560 if (r < 0)
1561 return bus_log_parse_error(r);
1562
1563 fputc('\n', stdout);
1564 }
1565 }
1566
1567 return 0;
1568 }
1569
1570 static int get_property(sd_bus *bus, char *argv[]) {
1571 _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
1572 unsigned n;
1573 char **i;
1574 int r;
1575
1576 assert(bus);
1577
1578 n = strv_length(argv);
1579 if (n < 5) {
1580 log_error("Expects at least four arguments.");
1581 return -EINVAL;
1582 }
1583
1584 STRV_FOREACH(i, argv + 4) {
1585 _cleanup_bus_message_unref_ sd_bus_message *reply = NULL;
1586 const char *contents = NULL;
1587 char type;
1588
1589 r = sd_bus_call_method(bus, argv[1], argv[2], "org.freedesktop.DBus.Properties", "Get", &error, &reply, "ss", argv[3], *i);
1590 if (r < 0) {
1591 log_error("%s", bus_error_message(&error, r));
1592 return r;
1593 }
1594
1595 r = sd_bus_message_peek_type(reply, &type, &contents);
1596 if (r < 0)
1597 return bus_log_parse_error(r);
1598
1599 r = sd_bus_message_enter_container(reply, 'v', contents);
1600 if (r < 0)
1601 return bus_log_parse_error(r);
1602
1603 if (arg_verbose) {
1604 pager_open_if_enabled();
1605
1606 r = bus_message_dump(reply, stdout, BUS_MESSAGE_DUMP_SUBTREE_ONLY);
1607 if (r < 0)
1608 return r;
1609 } else {
1610 fputs(contents, stdout);
1611 fputc(' ', stdout);
1612
1613 r = format_cmdline(reply, stdout, false);
1614 if (r < 0)
1615 return bus_log_parse_error(r);
1616
1617 fputc('\n', stdout);
1618 }
1619
1620 r = sd_bus_message_exit_container(reply);
1621 if (r < 0)
1622 return bus_log_parse_error(r);
1623 }
1624
1625 return 0;
1626 }
1627
1628 static int set_property(sd_bus *bus, char *argv[]) {
1629 _cleanup_bus_message_unref_ sd_bus_message *m = NULL;
1630 _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
1631 unsigned n;
1632 char **p;
1633 int r;
1634
1635 assert(bus);
1636
1637 n = strv_length(argv);
1638 if (n < 6) {
1639 log_error("Expects at least five arguments.");
1640 return -EINVAL;
1641 }
1642
1643 r = sd_bus_message_new_method_call(bus, &m, argv[1], argv[2], "org.freedesktop.DBus.Properties", "Set");
1644 if (r < 0)
1645 return bus_log_create_error(r);
1646
1647 r = sd_bus_message_append(m, "ss", argv[3], argv[4]);
1648 if (r < 0)
1649 return bus_log_create_error(r);
1650
1651 r = sd_bus_message_open_container(m, 'v', argv[5]);
1652 if (r < 0)
1653 return bus_log_create_error(r);
1654
1655 p = argv+6;
1656 r = message_append_cmdline(m, argv[5], &p);
1657 if (r < 0)
1658 return r;
1659
1660 r = sd_bus_message_close_container(m);
1661 if (r < 0)
1662 return bus_log_create_error(r);
1663
1664 if (*p) {
1665 log_error("Too many parameters for signature.");
1666 return -EINVAL;
1667 }
1668
1669 r = sd_bus_call(bus, m, arg_timeout, &error, NULL);
1670 if (r < 0) {
1671 log_error("%s", bus_error_message(&error, r));
1672 return r;
1673 }
1674
1675 return 0;
1676 }
1677
1678 static int help(void) {
1679 printf("%s [OPTIONS...] {COMMAND} ...\n\n"
1680 "Introspect the bus.\n\n"
1681 " -h --help Show this help\n"
1682 " --version Show package version\n"
1683 " --no-pager Do not pipe output into a pager\n"
1684 " --no-legend Do not show the headers and footers\n"
1685 " --system Connect to system bus\n"
1686 " --user Connect to user bus\n"
1687 " -H --host=[USER@]HOST Operate on remote host\n"
1688 " -M --machine=CONTAINER Operate on local container\n"
1689 " --address=ADDRESS Connect to bus specified by address\n"
1690 " --show-machine Show machine ID column in list\n"
1691 " --unique Only show unique names\n"
1692 " --acquired Only show acquired names\n"
1693 " --activatable Only show activatable names\n"
1694 " --match=MATCH Only show matching messages\n"
1695 " --size=SIZE Maximum length of captured packet\n"
1696 " --list Don't show tree, but simple object path list\n"
1697 " --quiet Don't show method call reply\n"
1698 " --verbose Show result values in long format\n"
1699 " --expect-reply=BOOL Expect a method call reply\n"
1700 " --auto-start=BOOL Auto-start destination service\n"
1701 " --allow-interactive-authorization=BOOL\n"
1702 " Allow interactive authorization for operation\n"
1703 " --timeout=SECS Maximum time to wait for method call completion\n"
1704 " --augment-creds=BOOL Extend credential data with data read from /proc/$PID\n\n"
1705 "Commands:\n"
1706 " list List bus names\n"
1707 " status [SERVICE] Show bus service, process or bus owner credentials\n"
1708 " monitor [SERVICE...] Show bus traffic\n"
1709 " capture [SERVICE...] Capture bus traffic as pcap\n"
1710 " tree [SERVICE...] Show object tree of service\n"
1711 " introspect SERVICE OBJECT [INTERFACE]\n"
1712 " call SERVICE OBJECT INTERFACE METHOD [SIGNATURE [ARGUMENT...]]\n"
1713 " Call a method\n"
1714 " get-property SERVICE OBJECT INTERFACE PROPERTY...\n"
1715 " Get property value\n"
1716 " set-property SERVICE OBJECT INTERFACE PROPERTY SIGNATURE ARGUMENT...\n"
1717 " Set property value\n"
1718 " help Show this help\n"
1719 , program_invocation_short_name);
1720
1721 return 0;
1722 }
1723
1724 static int parse_argv(int argc, char *argv[]) {
1725
1726 enum {
1727 ARG_VERSION = 0x100,
1728 ARG_NO_PAGER,
1729 ARG_NO_LEGEND,
1730 ARG_SYSTEM,
1731 ARG_USER,
1732 ARG_ADDRESS,
1733 ARG_MATCH,
1734 ARG_SHOW_MACHINE,
1735 ARG_UNIQUE,
1736 ARG_ACQUIRED,
1737 ARG_ACTIVATABLE,
1738 ARG_SIZE,
1739 ARG_LIST,
1740 ARG_VERBOSE,
1741 ARG_EXPECT_REPLY,
1742 ARG_AUTO_START,
1743 ARG_ALLOW_INTERACTIVE_AUTHORIZATION,
1744 ARG_TIMEOUT,
1745 ARG_AUGMENT_CREDS,
1746 };
1747
1748 static const struct option options[] = {
1749 { "help", no_argument, NULL, 'h' },
1750 { "version", no_argument, NULL, ARG_VERSION },
1751 { "no-pager", no_argument, NULL, ARG_NO_PAGER },
1752 { "no-legend", no_argument, NULL, ARG_NO_LEGEND },
1753 { "system", no_argument, NULL, ARG_SYSTEM },
1754 { "user", no_argument, NULL, ARG_USER },
1755 { "address", required_argument, NULL, ARG_ADDRESS },
1756 { "show-machine", no_argument, NULL, ARG_SHOW_MACHINE },
1757 { "unique", no_argument, NULL, ARG_UNIQUE },
1758 { "acquired", no_argument, NULL, ARG_ACQUIRED },
1759 { "activatable", no_argument, NULL, ARG_ACTIVATABLE },
1760 { "match", required_argument, NULL, ARG_MATCH },
1761 { "host", required_argument, NULL, 'H' },
1762 { "machine", required_argument, NULL, 'M' },
1763 { "size", required_argument, NULL, ARG_SIZE },
1764 { "list", no_argument, NULL, ARG_LIST },
1765 { "quiet", no_argument, NULL, 'q' },
1766 { "verbose", no_argument, NULL, ARG_VERBOSE },
1767 { "expect-reply", required_argument, NULL, ARG_EXPECT_REPLY },
1768 { "auto-start", required_argument, NULL, ARG_AUTO_START },
1769 { "allow-interactive-authorization", required_argument, NULL, ARG_ALLOW_INTERACTIVE_AUTHORIZATION },
1770 { "timeout", required_argument, NULL, ARG_TIMEOUT },
1771 { "augment-creds",required_argument, NULL, ARG_AUGMENT_CREDS},
1772 {},
1773 };
1774
1775 int c, r;
1776
1777 assert(argc >= 0);
1778 assert(argv);
1779
1780 while ((c = getopt_long(argc, argv, "hH:M:q", options, NULL)) >= 0)
1781
1782 switch (c) {
1783
1784 case 'h':
1785 return help();
1786
1787 case ARG_VERSION:
1788 return version();
1789
1790 case ARG_NO_PAGER:
1791 arg_no_pager = true;
1792 break;
1793
1794 case ARG_NO_LEGEND:
1795 arg_legend = false;
1796 break;
1797
1798 case ARG_USER:
1799 arg_user = true;
1800 break;
1801
1802 case ARG_SYSTEM:
1803 arg_user = false;
1804 break;
1805
1806 case ARG_ADDRESS:
1807 arg_address = optarg;
1808 break;
1809
1810 case ARG_SHOW_MACHINE:
1811 arg_show_machine = true;
1812 break;
1813
1814 case ARG_UNIQUE:
1815 arg_unique = true;
1816 break;
1817
1818 case ARG_ACQUIRED:
1819 arg_acquired = true;
1820 break;
1821
1822 case ARG_ACTIVATABLE:
1823 arg_activatable = true;
1824 break;
1825
1826 case ARG_MATCH:
1827 if (strv_extend(&arg_matches, optarg) < 0)
1828 return log_oom();
1829 break;
1830
1831 case ARG_SIZE: {
1832 uint64_t sz;
1833
1834 r = parse_size(optarg, 1024, &sz);
1835 if (r < 0) {
1836 log_error("Failed to parse size: %s", optarg);
1837 return r;
1838 }
1839
1840 if ((uint64_t) (size_t) sz != sz) {
1841 log_error("Size out of range.");
1842 return -E2BIG;
1843 }
1844
1845 arg_snaplen = (size_t) sz;
1846 break;
1847 }
1848
1849 case ARG_LIST:
1850 arg_list = true;
1851 break;
1852
1853 case 'H':
1854 arg_transport = BUS_TRANSPORT_REMOTE;
1855 arg_host = optarg;
1856 break;
1857
1858 case 'M':
1859 arg_transport = BUS_TRANSPORT_MACHINE;
1860 arg_host = optarg;
1861 break;
1862
1863 case 'q':
1864 arg_quiet = true;
1865 break;
1866
1867 case ARG_VERBOSE:
1868 arg_verbose = true;
1869 break;
1870
1871 case ARG_EXPECT_REPLY:
1872 r = parse_boolean(optarg);
1873 if (r < 0) {
1874 log_error("Failed to parse --expect-reply= parameter.");
1875 return r;
1876 }
1877
1878 arg_expect_reply = !!r;
1879 break;
1880
1881
1882 case ARG_AUTO_START:
1883 r = parse_boolean(optarg);
1884 if (r < 0) {
1885 log_error("Failed to parse --auto-start= parameter.");
1886 return r;
1887 }
1888
1889 arg_auto_start = !!r;
1890 break;
1891
1892
1893 case ARG_ALLOW_INTERACTIVE_AUTHORIZATION:
1894 r = parse_boolean(optarg);
1895 if (r < 0) {
1896 log_error("Failed to parse --allow-interactive-authorization= parameter.");
1897 return r;
1898 }
1899
1900 arg_allow_interactive_authorization = !!r;
1901 break;
1902
1903 case ARG_TIMEOUT:
1904 r = parse_sec(optarg, &arg_timeout);
1905 if (r < 0) {
1906 log_error("Failed to parse --timeout= parameter.");
1907 return r;
1908 }
1909
1910 break;
1911
1912 case ARG_AUGMENT_CREDS:
1913 r = parse_boolean(optarg);
1914 if (r < 0) {
1915 log_error("Failed to parse --augment-creds= parameter.");
1916 return r;
1917 }
1918
1919 arg_augment_creds = !!r;
1920 break;
1921
1922 case '?':
1923 return -EINVAL;
1924
1925 default:
1926 assert_not_reached("Unhandled option");
1927 }
1928
1929 return 1;
1930 }
1931
1932 static int busctl_main(sd_bus *bus, int argc, char *argv[]) {
1933 assert(bus);
1934
1935 if (optind >= argc ||
1936 streq(argv[optind], "list"))
1937 return list_bus_names(bus, argv + optind);
1938
1939 if (streq(argv[optind], "monitor"))
1940 return monitor(bus, argv + optind, message_dump);
1941
1942 if (streq(argv[optind], "capture"))
1943 return capture(bus, argv + optind);
1944
1945 if (streq(argv[optind], "status"))
1946 return status(bus, argv + optind);
1947
1948 if (streq(argv[optind], "tree"))
1949 return tree(bus, argv + optind);
1950
1951 if (streq(argv[optind], "introspect"))
1952 return introspect(bus, argv + optind);
1953
1954 if (streq(argv[optind], "call"))
1955 return call(bus, argv + optind);
1956
1957 if (streq(argv[optind], "get-property"))
1958 return get_property(bus, argv + optind);
1959
1960 if (streq(argv[optind], "set-property"))
1961 return set_property(bus, argv + optind);
1962
1963 if (streq(argv[optind], "help"))
1964 return help();
1965
1966 log_error("Unknown command '%s'", argv[optind]);
1967 return -EINVAL;
1968 }
1969
1970 int main(int argc, char *argv[]) {
1971 _cleanup_bus_flush_close_unref_ sd_bus *bus = NULL;
1972 int r;
1973
1974 log_parse_environment();
1975 log_open();
1976
1977 r = parse_argv(argc, argv);
1978 if (r <= 0)
1979 goto finish;
1980
1981 r = sd_bus_new(&bus);
1982 if (r < 0) {
1983 log_error_errno(r, "Failed to allocate bus: %m");
1984 goto finish;
1985 }
1986
1987 if (streq_ptr(argv[optind], "monitor") ||
1988 streq_ptr(argv[optind], "capture")) {
1989
1990 r = sd_bus_set_monitor(bus, true);
1991 if (r < 0) {
1992 log_error_errno(r, "Failed to set monitor mode: %m");
1993 goto finish;
1994 }
1995
1996 r = sd_bus_negotiate_creds(bus, true, _SD_BUS_CREDS_ALL);
1997 if (r < 0) {
1998 log_error_errno(r, "Failed to enable credentials: %m");
1999 goto finish;
2000 }
2001
2002 r = sd_bus_negotiate_timestamp(bus, true);
2003 if (r < 0) {
2004 log_error_errno(r, "Failed to enable timestamps: %m");
2005 goto finish;
2006 }
2007
2008 r = sd_bus_negotiate_fds(bus, true);
2009 if (r < 0) {
2010 log_error_errno(r, "Failed to enable fds: %m");
2011 goto finish;
2012 }
2013 }
2014
2015 r = sd_bus_set_bus_client(bus, true);
2016 if (r < 0) {
2017 log_error_errno(r, "Failed to set bus client: %m");
2018 goto finish;
2019 }
2020
2021 if (arg_address)
2022 r = sd_bus_set_address(bus, arg_address);
2023 else {
2024 switch (arg_transport) {
2025
2026 case BUS_TRANSPORT_LOCAL:
2027 if (arg_user) {
2028 bus->is_user = true;
2029 r = bus_set_address_user(bus);
2030 } else {
2031 bus->is_system = true;
2032 r = bus_set_address_system(bus);
2033 }
2034 break;
2035
2036 case BUS_TRANSPORT_REMOTE:
2037 r = bus_set_address_system_remote(bus, arg_host);
2038 break;
2039
2040 case BUS_TRANSPORT_MACHINE:
2041 r = bus_set_address_system_machine(bus, arg_host);
2042 break;
2043
2044 default:
2045 assert_not_reached("Hmm, unknown transport type.");
2046 }
2047 }
2048 if (r < 0) {
2049 log_error_errno(r, "Failed to set address: %m");
2050 goto finish;
2051 }
2052
2053 r = sd_bus_start(bus);
2054 if (r < 0) {
2055 log_error_errno(r, "Failed to connect to bus: %m");
2056 goto finish;
2057 }
2058
2059 r = busctl_main(bus, argc, argv);
2060
2061 finish:
2062 pager_close();
2063
2064 strv_free(arg_matches);
2065
2066 return r < 0 ? EXIT_FAILURE : EXIT_SUCCESS;
2067 }
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