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util: unify implementation of NOP signal handler
[thirdparty/systemd.git] / src / libsystemd / sd-bus / busctl.c
CommitLineData
de1c301e
LP		 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
1f849790
LP		 22#include <getopt.h>
23
89ffcd2a
LP		 24#include "strv.h"
25#include "util.h"
26#include "log.h"
1f849790
LP		 27#include "build.h"
28#include "pager.h"
d9130355 29#include "path-util.h"
3c70e3bb 30#include "set.h"
89ffcd2a 31
de1c301e 32#include "sd-bus.h"
057171ef 33#include "bus-internal.h"
40ca29a1 34#include "bus-util.h"
2b5c5383 35#include "bus-dump.h"
781fa938 36#include "bus-signature.h"
79f34de9 37#include "bus-type.h"
a1ad3767 38#include "busctl-introspect.h"
288a74cc 39#include "terminal-util.h"
de1c301e 40
1f849790 41static bool arg_no_pager = false;
17d47d8d 42static bool arg_legend = true;
1f849790 43static char *arg_address = NULL;
56e61788
LP		 44static bool arg_unique = false;
45static bool arg_acquired = false;
46static bool arg_activatable = false;
47static bool arg_show_machine = false;
1f849790 48static char **arg_matches = NULL;
d75edbd6
LP		 49static BusTransport arg_transport = BUS_TRANSPORT_LOCAL;
50static char *arg_host = NULL;
51static bool arg_user = false;
1f70b087 52static size_t arg_snaplen = 4096;
d9130355 53static bool arg_list = false;
781fa938 54static bool arg_quiet = false;
1fc55609 55static bool arg_verbose = false;
38051578
LP		 56static bool arg_expect_reply = true;
57static bool arg_auto_start = true;
58static bool arg_allow_interactive_authorization = true;
40ed1a45 59static bool arg_augment_creds = true;
a44b1081 60static usec_t arg_timeout = 0;
1f849790
LP		 61
62static 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
1d58a1fe
LP		 71#define NAME_IS_ACQUIRED INT_TO_PTR(1)
72#define NAME_IS_ACTIVATABLE INT_TO_PTR(2)
73
1f849790 74static int list_bus_names(sd_bus *bus, char **argv) {
71f2ab46 75 _cleanup_strv_free_ char **acquired = NULL, **activatable = NULL;
5e2f14e6
LP		 76 _cleanup_free_ char **merged = NULL;
77 _cleanup_hashmap_free_ Hashmap *names = NULL;
de1c301e
LP		 78 char **i;
79 int r;
89ffcd2a 80 size_t max_i = 0;
5e2f14e6
LP		 81 unsigned n = 0;
82 void *v;
83 char *k;
84 Iterator iterator;
de1c301e 85
1f849790 86 assert(bus);
de1c301e 87
d9130355
LP		 88 if (!arg_unique && !arg_acquired && !arg_activatable)
89 arg_unique = arg_acquired = arg_activatable = true;
90
56e61788 91 r = sd_bus_list_names(bus, (arg_acquired || arg_unique) ? &acquired : NULL, arg_activatable ? &activatable : NULL);
23bbb0de
MS		 92 if (r < 0)
93 return log_error_errno(r, "Failed to list names: %m");
de1c301e 94
1f849790
LP		 95 pager_open_if_enabled();
96
d5099efc 97 names = hashmap_new(&string_hash_ops);
5e2f14e6
LP		 98 if (!names)
99 return log_oom();
89ffcd2a 100
5e2f14e6 101 STRV_FOREACH(i, acquired) {
71f2ab46
LP		 102 max_i = MAX(max_i, strlen(*i));
103
1d58a1fe 104 r = hashmap_put(names, *i, NAME_IS_ACQUIRED);
23bbb0de
MS		 105 if (r < 0)
106 return log_error_errno(r, "Failed to add to hashmap: %m");
5e2f14e6
LP		 107 }
108
109 STRV_FOREACH(i, activatable) {
89ffcd2a
LP		 110 max_i = MAX(max_i, strlen(*i));
111
1d58a1fe 112 r = hashmap_put(names, *i, NAME_IS_ACTIVATABLE);
23bbb0de
MS		 113 if (r < 0 && r != -EEXIST)
114 return log_error_errno(r, "Failed to add to hashmap: %m");
5e2f14e6
LP		 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
17d47d8d
TA		 124 if (arg_legend) {
125 printf("%-*s %*s %-*s %-*s %-*s %-*s %-*s %-*s",
455971c1 126 (int) max_i, "NAME", 10, "PID", 15, "PROCESS", 16, "USER", 13, "CONNECTION", 25, "UNIT", 10, "SESSION", 19, "DESCRIPTION");
89ffcd2a 127
17d47d8d
TA		 128 if (arg_show_machine)
129 puts(" MACHINE");
130 else
131 putchar('\n');
132 }
a4297f08 133
5e2f14e6
LP		 134 STRV_FOREACH(i, merged) {
135 _cleanup_bus_creds_unref_ sd_bus_creds *creds = NULL;
136 sd_id128_t mid;
71f2ab46 137
1d58a1fe 138 if (hashmap_get(names, *i) == NAME_IS_ACTIVATABLE) {
5e2f14e6 139 /* Activatable */
71f2ab46 140
5e2f14e6 141 printf("%-*s", (int) max_i, *i);
56e61788
LP		 142 printf(" - - - (activatable) - - ");
143 if (arg_show_machine)
5e2f14e6 144 puts(" -");
56e61788
LP		 145 else
146 putchar('\n');
71f2ab46
LP		 147 continue;
148
5e2f14e6 149 }
de1c301e 150
56e61788
LP		 151 if (!arg_unique && (*i)[0] == ':')
152 continue;
153
154 if (!arg_acquired && (*i)[0] != ':')
1f849790 155 continue;
89ffcd2a
LP		 156
157 printf("%-*s", (int) max_i, *i);
de1c301e 158
40ed1a45
LP		 159 r = sd_bus_get_name_creds(
160 bus, *i,
161 (arg_augment_creds ? SD_BUS_CREDS_AUGMENT : 0) |
05bae4a6 162 SD_BUS_CREDS_EUID|SD_BUS_CREDS_PID|SD_BUS_CREDS_COMM|
40ed1a45
LP		 163 SD_BUS_CREDS_UNIQUE_NAME|SD_BUS_CREDS_UNIT|SD_BUS_CREDS_SESSION|
164 SD_BUS_CREDS_DESCRIPTION, &creds);
89ffcd2a 165 if (r >= 0) {
14008e4e 166 const char *unique, *session, *unit, *cn;
5b12334d
LP		 167 pid_t pid;
168 uid_t uid;
de1c301e 169
5b12334d
LP		 170 r = sd_bus_creds_get_pid(creds, &pid);
171 if (r >= 0) {
172 const char *comm = NULL;
de1c301e 173
5b12334d 174 sd_bus_creds_get_comm(creds, &comm);
89ffcd2a 175
5b12334d
LP		 176 printf(" %10lu %-15s", (unsigned long) pid, strna(comm));
177 } else
a4297f08 178 fputs(" - - ", stdout);
89ffcd2a 179
05bae4a6 180 r = sd_bus_creds_get_euid(creds, &uid);
5b12334d
LP		 181 if (r >= 0) {
182 _cleanup_free_ char *u = NULL;
89ffcd2a 183
5b12334d
LP		 184 u = uid_to_name(uid);
185 if (!u)
186 return log_oom();
89ffcd2a 187
5b12334d
LP		 188 if (strlen(u) > 16)
189 u[16] = 0;
190
191 printf(" %-16s", u);
192 } else
a4297f08 193 fputs(" - ", stdout);
89ffcd2a 194
49b832c5
LP		 195 r = sd_bus_creds_get_unique_name(creds, &unique);
196 if (r >= 0)
56e61788
LP		 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);
a4297f08 216 else
56e61788 217 fputs(" - ", stdout);
7b0b392f 218
455971c1 219 r = sd_bus_creds_get_description(creds, &cn);
14008e4e
LP		 220 if (r >= 0)
221 printf(" %-19s", cn);
222 else
223 fputs(" - ", stdout);
224
7b0b392f 225 } else
14008e4e 226 printf(" - - - - - - - ");
a4297f08 227
56e61788 228 if (arg_show_machine) {
056f95d0 229 r = sd_bus_get_name_machine_id(bus, *i, &mid);
a4297f08
LP		 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(" -");
56e61788
LP		 235 } else
236 putchar('\n');
de1c301e
LP		 237 }
238
1f849790
LP		 239 return 0;
240}
241
d9130355
LP		 242static 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
63c372cb
LP		 258 vertical = strjoina(prefix, draw_special_char(DRAW_TREE_VERTICAL));
259 space = strjoina(prefix, draw_special_char(DRAW_TREE_SPACE));
d9130355
LP		 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
287static 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
56c8b52d
LP		 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 }
d9130355
LP		 310
311 print_subtree(prefix, "/", l);
312}
313
a1ad3767
LP		 314static int on_path(const char *path, void *userdata) {
315 Set *paths = userdata;
d9130355
LP		 316 int r;
317
a1ad3767 318 assert(paths);
d9130355 319
a1ad3767
LP		 320 r = set_put_strdup(paths, path);
321 if (r < 0)
322 return log_oom();
d9130355 323
a1ad3767 324 return 0;
d9130355
LP		 325}
326
73fc23c0 327static int find_nodes(sd_bus *bus, const char *service, const char *path, Set *paths, bool many) {
0171da06 328 static const XMLIntrospectOps ops = {
a1ad3767
LP		 329 .on_path = on_path,
330 };
331
d9130355 332 _cleanup_bus_message_unref_ sd_bus_message *reply = NULL;
a1ad3767
LP		 333 _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
334 const char *xml;
d9130355
LP		 335 int r;
336
337 r = sd_bus_call_method(bus, service, path, "org.freedesktop.DBus.Introspectable", "Introspect", &error, &reply, "");
338 if (r < 0) {
73fc23c0
LP		 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));
d9130355
LP		 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
a1ad3767 350 return parse_xml_introspect(path, xml, &ops, paths);
d9130355
LP		 351}
352
73fc23c0 353static int tree_one(sd_bus *bus, const char *service, const char *prefix, bool many) {
d9130355
LP		 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
73fc23c0 393 q = find_nodes(bus, service, p, paths, many);
d9130355
LP		 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
73fc23c0
LP		 409 pager_open_if_enabled();
410
d9130355
LP		 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
423static 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;
56c8b52d 432 bool not_first = false;
d9130355
LP		 433
434 r = sd_bus_list_names(bus, &names, NULL);
23bbb0de
MS		 435 if (r < 0)
436 return log_error_errno(r, "Failed to get name list: %m");
d9130355
LP		 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
1fc464f6 452 printf("Service %s%s%s:\n", ansi_highlight(), *i, ansi_normal());
d9130355 453
73fc23c0 454 q = tree_one(bus, *i, NULL, true);
d9130355
LP		 455 if (q < 0 && r >= 0)
456 r = q;
457
458 not_first = true;
459 }
460 } else {
d9130355
LP		 461 STRV_FOREACH(i, argv+1) {
462 int q;
463
464 if (i > argv+1)
465 printf("\n");
466
73fc23c0
LP		 467 if (argv[2]) {
468 pager_open_if_enabled();
1fc464f6 469 printf("Service %s%s%s:\n", ansi_highlight(), *i, ansi_normal());
73fc23c0 470 }
d9130355 471
73fc23c0 472 q = tree_one(bus, *i, NULL, !!argv[2]);
d9130355
LP		 473 if (q < 0 && r >= 0)
474 r = q;
475 }
476 }
477
478 return r;
479}
480
1fc55609
LP		 481static 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
1ed24c61 541 r = format_cmdline(m, f, needs_space || IN_SET(type, SD_BUS_TYPE_ARRAY, SD_BUS_TYPE_VARIANT));
1fc55609
LP		 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
1ed24c61 617 needs_space = true;
1fc55609
LP		 618 }
619}
620
0171da06
LP		 621typedef struct Member {
622 const char *type;
623 char *interface;
624 char *name;
625 char *signature;
626 char *result;
1fc55609 627 char *value;
0171da06
LP		 628 bool writable;
629 uint64_t flags;
630} Member;
631
632static unsigned long member_hash_func(const void *p, const uint8_t hash_key[]) {
633 const Member *m = p;
634 unsigned long ul;
635
636 assert(m);
637 assert(m->type);
638
639 ul = string_hash_func(m->type, hash_key);
640
641 if (m->name)
642 ul ^= string_hash_func(m->name, hash_key);
643
644 if (m->interface)
645 ul ^= string_hash_func(m->interface, hash_key);
646
647 return ul;
648}
649
650static int member_compare_func(const void *a, const void *b) {
651 const Member *x = a, *y = b;
652 int d;
653
654 assert(x);
655 assert(y);
656 assert(x->type);
657 assert(y->type);
658
c030a850
NK		 659 d = strcmp_ptr(x->interface, y->interface);
660 if (d != 0)
661 return d;
0171da06
LP		 662
663 d = strcmp(x->type, y->type);
664 if (d != 0)
665 return d;
666
c030a850 667 return strcmp_ptr(x->name, y->name);
0171da06
LP		 668}
669
670static int member_compare_funcp(const void *a, const void *b) {
671 const Member *const * x = (const Member *const *) a, * const *y = (const Member *const *) b;
672
673 return member_compare_func(*x, *y);
674}
675
676static void member_free(Member *m) {
677 if (!m)
678 return;
679
680 free(m->interface);
681 free(m->name);
682 free(m->signature);
683 free(m->result);
1fc55609 684 free(m->value);
0171da06
LP		 685 free(m);
686}
687
688DEFINE_TRIVIAL_CLEANUP_FUNC(Member*, member_free);
689
690static void member_set_free(Set *s) {
691 Member *m;
692
693 while ((m = set_steal_first(s)))
694 member_free(m);
695
696 set_free(s);
697}
698
699DEFINE_TRIVIAL_CLEANUP_FUNC(Set*, member_set_free);
700
701static int on_interface(const char *interface, uint64_t flags, void *userdata) {
702 _cleanup_(member_freep) Member *m;
703 Set *members = userdata;
704 int r;
705
706 assert(interface);
707 assert(members);
708
709 m = new0(Member, 1);
710 if (!m)
711 return log_oom();
712
713 m->type = "interface";
714 m->flags = flags;
715
716 r = free_and_strdup(&m->interface, interface);
717 if (r < 0)
718 return log_oom();
719
720 r = set_put(members, m);
721 if (r <= 0) {
722 log_error("Duplicate interface");
723 return -EINVAL;
724 }
725
726 m = NULL;
727 return 0;
728}
729
730static int on_method(const char *interface, const char *name, const char *signature, const char *result, uint64_t flags, void *userdata) {
731 _cleanup_(member_freep) Member *m;
732 Set *members = userdata;
733 int r;
734
735 assert(interface);
736 assert(name);
737
738 m = new0(Member, 1);
739 if (!m)
740 return log_oom();
741
742 m->type = "method";
743 m->flags = flags;
744
745 r = free_and_strdup(&m->interface, interface);
746 if (r < 0)
747 return log_oom();
748
749 r = free_and_strdup(&m->name, name);
750 if (r < 0)
751 return log_oom();
752
753 r = free_and_strdup(&m->signature, signature);
754 if (r < 0)
755 return log_oom();
756
757 r = free_and_strdup(&m->result, result);
758 if (r < 0)
759 return log_oom();
760
761 r = set_put(members, m);
762 if (r <= 0) {
763 log_error("Duplicate method");
764 return -EINVAL;
765 }
766
767 m = NULL;
768 return 0;
769}
770
771static int on_signal(const char *interface, const char *name, const char *signature, uint64_t flags, void *userdata) {
772 _cleanup_(member_freep) Member *m;
773 Set *members = userdata;
774 int r;
775
776 assert(interface);
777 assert(name);
778
779 m = new0(Member, 1);
780 if (!m)
781 return log_oom();
782
783 m->type = "signal";
784 m->flags = flags;
785
786 r = free_and_strdup(&m->interface, interface);
787 if (r < 0)
788 return log_oom();
789
790 r = free_and_strdup(&m->name, name);
791 if (r < 0)
792 return log_oom();
793
794 r = free_and_strdup(&m->signature, signature);
795 if (r < 0)
796 return log_oom();
797
798 r = set_put(members, m);
799 if (r <= 0) {
800 log_error("Duplicate signal");
801 return -EINVAL;
802 }
803
804 m = NULL;
805 return 0;
806}
807
808static int on_property(const char *interface, const char *name, const char *signature, bool writable, uint64_t flags, void *userdata) {
809 _cleanup_(member_freep) Member *m;
810 Set *members = userdata;
811 int r;
812
813 assert(interface);
814 assert(name);
815
816 m = new0(Member, 1);
817 if (!m)
818 return log_oom();
819
820 m->type = "property";
821 m->flags = flags;
822 m->writable = writable;
823
824 r = free_and_strdup(&m->interface, interface);
825 if (r < 0)
826 return log_oom();
827
828 r = free_and_strdup(&m->name, name);
829 if (r < 0)
830 return log_oom();
831
832 r = free_and_strdup(&m->signature, signature);
833 if (r < 0)
834 return log_oom();
835
836 r = set_put(members, m);
837 if (r <= 0) {
838 log_error("Duplicate property");
839 return -EINVAL;
840 }
841
842 m = NULL;
843 return 0;
844}
845
846static const char *strdash(const char *x) {
847 return isempty(x) ? "-" : x;
848}
849
850static int introspect(sd_bus *bus, char **argv) {
851 static const struct hash_ops member_hash_ops = {
852 .hash = member_hash_func,
853 .compare = member_compare_func,
854 };
855
856 static const XMLIntrospectOps ops = {
857 .on_interface = on_interface,
858 .on_method = on_method,
859 .on_signal = on_signal,
860 .on_property = on_property,
861 };
862
863 _cleanup_bus_message_unref_ sd_bus_message *reply = NULL;
864 _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
865 _cleanup_(member_set_freep) Set *members = NULL;
866 Iterator i;
867 Member *m;
868 const char *xml;
869 int r;
870 unsigned name_width, type_width, signature_width, result_width;
871 Member **sorted = NULL;
4f44c03e 872 unsigned k = 0, j, n_args;
0171da06 873
4f44c03e
LP		 874 n_args = strv_length(argv);
875 if (n_args < 3) {
0171da06
LP		 876 log_error("Requires service and object path argument.");
877 return -EINVAL;
878 }
879
4f44c03e
LP		 880 if (n_args > 4) {
881 log_error("Too many arguments.");
882 return -EINVAL;
883 }
884
0171da06
LP		 885 members = set_new(&member_hash_ops);
886 if (!members)
887 return log_oom();
888
889 r = sd_bus_call_method(bus, argv[1], argv[2], "org.freedesktop.DBus.Introspectable", "Introspect", &error, &reply, "");
890 if (r < 0) {
891 log_error("Failed to introspect object %s of service %s: %s", argv[2], argv[1], bus_error_message(&error, r));
892 return r;
893 }
894
895 r = sd_bus_message_read(reply, "s", &xml);
896 if (r < 0)
897 return bus_log_parse_error(r);
898
1fc55609 899 /* First, get list of all properties */
0171da06
LP		 900 r = parse_xml_introspect(argv[2], xml, &ops, members);
901 if (r < 0)
902 return r;
903
1fc55609
LP		 904 /* Second, find the current values for them */
905 SET_FOREACH(m, members, i) {
906
907 if (!streq(m->type, "property"))
908 continue;
909
910 if (m->value)
911 continue;
912
4f44c03e
LP		 913 if (argv[3] && !streq(argv[3], m->interface))
914 continue;
915
1fc55609
LP		 916 r = sd_bus_call_method(bus, argv[1], argv[2], "org.freedesktop.DBus.Properties", "GetAll", &error, &reply, "s", m->interface);
917 if (r < 0) {
918 log_error("%s", bus_error_message(&error, r));
919 return r;
920 }
921
922 r = sd_bus_message_enter_container(reply, 'a', "{sv}");
923 if (r < 0)
924 return bus_log_parse_error(r);
925
926 for (;;) {
927 Member *z;
928 _cleanup_free_ char *buf = NULL;
929 _cleanup_fclose_ FILE *mf = NULL;
930 size_t sz = 0;
931 const char *name;
932
933 r = sd_bus_message_enter_container(reply, 'e', "sv");
934 if (r < 0)
935 return bus_log_parse_error(r);
936
937 if (r == 0)
938 break;
939
940 r = sd_bus_message_read(reply, "s", &name);
941 if (r < 0)
942 return bus_log_parse_error(r);
943
944 r = sd_bus_message_enter_container(reply, 'v', NULL);
945 if (r < 0)
946 return bus_log_parse_error(r);
947
948 mf = open_memstream(&buf, &sz);
949 if (!mf)
950 return log_oom();
951
952 r = format_cmdline(reply, mf, false);
953 if (r < 0)
954 return bus_log_parse_error(r);
955
956 fclose(mf);
957 mf = NULL;
958
959 z = set_get(members, &((Member) {
960 .type = "property",
961 .interface = m->interface,
962 .name = (char*) name }));
963 if (z) {
964 free(z->value);
965 z->value = buf;
966 buf = NULL;
967 }
968
969 r = sd_bus_message_exit_container(reply);
970 if (r < 0)
971 return bus_log_parse_error(r);
972
973 r = sd_bus_message_exit_container(reply);
974 if (r < 0)
975 return bus_log_parse_error(r);
976 }
977
978 r = sd_bus_message_exit_container(reply);
979 if (r < 0)
980 return bus_log_parse_error(r);
981 }
982
0171da06
LP		 983 pager_open_if_enabled();
984
985 name_width = strlen("NAME");
986 type_width = strlen("TYPE");
987 signature_width = strlen("SIGNATURE");
1fc55609 988 result_width = strlen("RESULT/VALUE");
0171da06
LP		 989
990 sorted = newa(Member*, set_size(members));
991
992 SET_FOREACH(m, members, i) {
4f44c03e
LP		 993
994 if (argv[3] && !streq(argv[3], m->interface))
995 continue;
996
0171da06
LP		 997 if (m->interface)
998 name_width = MAX(name_width, strlen(m->interface));
999 if (m->name)
1000 name_width = MAX(name_width, strlen(m->name) + 1);
1001 if (m->type)
1002 type_width = MAX(type_width, strlen(m->type));
1003 if (m->signature)
1004 signature_width = MAX(signature_width, strlen(m->signature));
1005 if (m->result)
1006 result_width = MAX(result_width, strlen(m->result));
1fc55609
LP		 1007 if (m->value)
1008 result_width = MAX(result_width, strlen(m->value));
0171da06
LP		 1009
1010 sorted[k++] = m;
1011 }
1012
1fc55609
LP		 1013 if (result_width > 40)
1014 result_width = 40;
1015
0171da06
LP		 1016 qsort(sorted, k, sizeof(Member*), member_compare_funcp);
1017
1fc55609
LP		 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 }
0171da06
LP		 1026
1027 for (j = 0; j < k; j++) {
1fc55609
LP		 1028 _cleanup_free_ char *ellipsized = NULL;
1029 const char *rv;
0171da06
LP		 1030 bool is_interface;
1031
1032 m = sorted[j];
1033
4f44c03e
LP		 1034 if (argv[3] && !streq(argv[3], m->interface))
1035 continue;
1036
0171da06
LP		 1037 is_interface = streq(m->type, "interface");
1038
4f44c03e
LP		 1039 if (argv[3] && is_interface)
1040 continue;
1041
1fc55609
LP		 1042 if (m->value) {
1043 ellipsized = ellipsize(m->value, result_width, 100);
1044 if (!ellipsized)
1045 return log_oom();
1046
1047 rv = ellipsized;
1048 } else
1049 rv = strdash(m->result);
1050
0171da06
LP		 1051 printf("%s%s%-*s%s %-*s %-*s %-*s%s%s%s%s%s%s\n",
1052 is_interface ? ansi_highlight() : "",
1053 is_interface ? "" : ".",
1054 - !is_interface + (int) name_width, strdash(streq_ptr(m->type, "interface") ? m->interface : m->name),
1fc464f6 1055 is_interface ? ansi_normal() : "",
0171da06
LP		 1056 (int) type_width, strdash(m->type),
1057 (int) signature_width, strdash(m->signature),
1fc55609 1058 (int) result_width, rv,
0171da06
LP		 1059 (m->flags & SD_BUS_VTABLE_DEPRECATED) ? " deprecated" : (m->flags || m->writable ? "" : " -"),
1060 (m->flags & SD_BUS_VTABLE_METHOD_NO_REPLY) ? " no-reply" : "",
1061 (m->flags & SD_BUS_VTABLE_PROPERTY_CONST) ? " const" : "",
1062 (m->flags & SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE) ? " emits-change" : "",
1063 (m->flags & SD_BUS_VTABLE_PROPERTY_EMITS_INVALIDATION) ? " emits-invalidation" : "",
1064 m->writable ? " writable" : "");
1065 }
1066
1067 return 0;
1068}
1069
1f70b087 1070static int message_dump(sd_bus_message *m, FILE *f) {
d55192ad 1071 return bus_message_dump(m, f, BUS_MESSAGE_DUMP_WITH_HEADER);
1f70b087
LP		 1072}
1073
1074static int message_pcap(sd_bus_message *m, FILE *f) {
1075 return bus_message_pcap_frame(m, arg_snaplen, f);
1076}
1077
1078static int monitor(sd_bus *bus, char *argv[], int (*dump)(sd_bus_message *m, FILE *f)) {
b51f299a 1079 bool added_something = false;
1f849790
LP		 1080 char **i;
1081 int r;
1082
1083 STRV_FOREACH(i, argv+1) {
1084 _cleanup_free_ char *m = NULL;
1085
1086 if (!service_name_is_valid(*i)) {
1087 log_error("Invalid service name '%s'", *i);
1088 return -EINVAL;
1089 }
1090
1091 m = strjoin("sender='", *i, "'", NULL);
1092 if (!m)
1093 return log_oom();
1094
19befb2d 1095 r = sd_bus_add_match(bus, NULL, m, NULL, NULL);
23bbb0de
MS		 1096 if (r < 0)
1097 return log_error_errno(r, "Failed to add match: %m");
b51f299a 1098
f6d1e6cb
LU		 1099 free(m);
1100 m = strjoin("destination='", *i, "'", NULL);
1101 if (!m)
1102 return log_oom();
1103
1104 r = sd_bus_add_match(bus, NULL, m, NULL, NULL);
1105 if (r < 0)
1106 return log_error_errno(r, "Failed to add match: %m");
1107
b51f299a 1108 added_something = true;
1f849790
LP		 1109 }
1110
1111 STRV_FOREACH(i, arg_matches) {
19befb2d 1112 r = sd_bus_add_match(bus, NULL, *i, NULL, NULL);
23bbb0de
MS		 1113 if (r < 0)
1114 return log_error_errno(r, "Failed to add match: %m");
b51f299a
LP		 1115
1116 added_something = true;
1117 }
1118
1119 if (!added_something) {
19befb2d 1120 r = sd_bus_add_match(bus, NULL, "", NULL, NULL);
23bbb0de
MS		 1121 if (r < 0)
1122 return log_error_errno(r, "Failed to add match: %m");
1f849790
LP		 1123 }
1124
92d66625
LP		 1125 log_info("Monitoring bus message stream.");
1126
1f849790
LP		 1127 for (;;) {
1128 _cleanup_bus_message_unref_ sd_bus_message *m = NULL;
1129
1130 r = sd_bus_process(bus, &m);
23bbb0de
MS		 1131 if (r < 0)
1132 return log_error_errno(r, "Failed to process bus: %m");
1f849790
LP		 1133
1134 if (m) {
1f70b087 1135 dump(m, stdout);
1d44f758 1136 fflush(stdout);
92d66625
LP		 1137
1138 if (sd_bus_message_is_signal(m, "org.freedesktop.DBus.Local", "Disconnected") > 0) {
1139 log_info("Connection terminated, exiting.");
1140 return 0;
1141 }
1142
1f849790
LP		 1143 continue;
1144 }
1145
1146 if (r > 0)
1147 continue;
1148
1149 r = sd_bus_wait(bus, (uint64_t) -1);
23bbb0de
MS		 1150 if (r < 0)
1151 return log_error_errno(r, "Failed to wait for bus: %m");
1f849790 1152 }
95c4fe82 1153}
1f849790 1154
1f70b087
LP		 1155static int capture(sd_bus *bus, char *argv[]) {
1156 int r;
1157
1158 if (isatty(fileno(stdout)) > 0) {
1159 log_error("Refusing to write message data to console, please redirect output to a file.");
1160 return -EINVAL;
1161 }
1162
1163 bus_pcap_header(arg_snaplen, stdout);
1164
1165 r = monitor(bus, argv, message_pcap);
1166 if (r < 0)
1167 return r;
1168
1169 if (ferror(stdout)) {
1170 log_error("Couldn't write capture file.");
1171 return -EIO;
1172 }
1173
1174 return r;
1175}
1176
95c4fe82
LP		 1177static int status(sd_bus *bus, char *argv[]) {
1178 _cleanup_bus_creds_unref_ sd_bus_creds *creds = NULL;
1179 pid_t pid;
1180 int r;
1181
1182 assert(bus);
1183
2e9efd22
LP		 1184 if (strv_length(argv) > 2) {
1185 log_error("Expects no or one argument.");
95c4fe82
LP		 1186 return -EINVAL;
1187 }
1188
2e9efd22
LP		 1189 if (argv[1]) {
1190 r = parse_pid(argv[1], &pid);
1191 if (r < 0)
1192 r = sd_bus_get_name_creds(
1193 bus,
1194 argv[1],
1195 (arg_augment_creds ? SD_BUS_CREDS_AUGMENT : 0) | _SD_BUS_CREDS_ALL,
1196 &creds);
1197 else
1198 r = sd_bus_creds_new_from_pid(
1199 &creds,
1200 pid,
1201 _SD_BUS_CREDS_ALL);
3acc1daf 1202 } else {
5b820358 1203 const char *scope, *address;
5c302692 1204 sd_id128_t bus_id;
3acc1daf 1205
5b820358
LP		 1206 r = sd_bus_get_address(bus, &address);
1207 if (r >= 0)
1fc464f6 1208 printf("BusAddress=%s%s%s\n", ansi_highlight(), address, ansi_normal());
5b820358 1209
3acc1daf
LP		 1210 r = sd_bus_get_scope(bus, &scope);
1211 if (r >= 0)
1fc464f6 1212 printf("BusScope=%s%s%s\n", ansi_highlight(), scope, ansi_normal());
3acc1daf 1213
5c302692
LP		 1214 r = sd_bus_get_bus_id(bus, &bus_id);
1215 if (r >= 0)
1fc464f6 1216 printf("BusID=%s" SD_ID128_FORMAT_STR "%s\n", ansi_highlight(), SD_ID128_FORMAT_VAL(bus_id), ansi_normal());
5c302692 1217
2e9efd22 1218 r = sd_bus_get_owner_creds(
40ed1a45 1219 bus,
40ed1a45
LP		 1220 (arg_augment_creds ? SD_BUS_CREDS_AUGMENT : 0) | _SD_BUS_CREDS_ALL,
1221 &creds);
3acc1daf 1222 }
95c4fe82 1223
23bbb0de
MS		 1224 if (r < 0)
1225 return log_error_errno(r, "Failed to get credentials: %m");
95c4fe82 1226
d0b2babf 1227 bus_creds_dump(creds, NULL, false);
95c4fe82 1228 return 0;
1f849790
LP		 1229}
1230
781fa938
LP		 1231static int message_append_cmdline(sd_bus_message *m, const char *signature, char ***x) {
1232 char **p;
1233 int r;
1234
1235 assert(m);
1236 assert(signature);
1237 assert(x);
1238
1239 p = *x;
1240
1241 for (;;) {
1242 const char *v;
1243 char t;
1244
1245 t = *signature;
1246 v = *p;
1247
1248 if (t == 0)
1249 break;
1250 if (!v) {
1251 log_error("Too few parameters for signature.");
1252 return -EINVAL;
1253 }
1254
1255 signature++;
1256 p++;
1257
1258 switch (t) {
1259
1260 case SD_BUS_TYPE_BOOLEAN:
1261
1262 r = parse_boolean(v);
1263 if (r < 0) {
1264 log_error("Failed to parse as boolean: %s", v);
1265 return r;
1266 }
1267
1268 r = sd_bus_message_append_basic(m, t, &r);
1269 break;
1270
1271 case SD_BUS_TYPE_BYTE: {
1272 uint8_t z;
1273
1274 r = safe_atou8(v, &z);
1275 if (r < 0) {
1276 log_error("Failed to parse as byte (unsigned 8bit integer): %s", v);
1277 return r;
1278 }
1279
1280 r = sd_bus_message_append_basic(m, t, &z);
1281 break;
1282 }
1283
1284 case SD_BUS_TYPE_INT16: {
1285 int16_t z;
1286
1287 r = safe_atoi16(v, &z);
1288 if (r < 0) {
1289 log_error("Failed to parse as signed 16bit integer: %s", v);
1290 return r;
1291 }
1292
1293 r = sd_bus_message_append_basic(m, t, &z);
1294 break;
1295 }
1296
1297 case SD_BUS_TYPE_UINT16: {
1298 uint16_t z;
1299
1300 r = safe_atou16(v, &z);
1301 if (r < 0) {
1302 log_error("Failed to parse as unsigned 16bit integer: %s", v);
1303 return r;
1304 }
1305
1306 r = sd_bus_message_append_basic(m, t, &z);
1307 break;
1308 }
1309
1310 case SD_BUS_TYPE_INT32: {
1311 int32_t z;
1312
1313 r = safe_atoi32(v, &z);
1314 if (r < 0) {
1315 log_error("Failed to parse as signed 32bit integer: %s", v);
1316 return r;
1317 }
1318
1319 r = sd_bus_message_append_basic(m, t, &z);
1320 break;
1321 }
1322
1323 case SD_BUS_TYPE_UINT32: {
1324 uint32_t z;
1325
1326 r = safe_atou32(v, &z);
1327 if (r < 0) {
1328 log_error("Failed to parse as unsigned 32bit integer: %s", v);
1329 return r;
1330 }
1331
1332 r = sd_bus_message_append_basic(m, t, &z);
1333 break;
1334 }
1335
1336 case SD_BUS_TYPE_INT64: {
1337 int64_t z;
1338
1339 r = safe_atoi64(v, &z);
1340 if (r < 0) {
1341 log_error("Failed to parse as signed 64bit integer: %s", v);
1342 return r;
1343 }
1344
1345 r = sd_bus_message_append_basic(m, t, &z);
1346 break;
1347 }
1348
1349 case SD_BUS_TYPE_UINT64: {
1350 uint64_t z;
1351
1352 r = safe_atou64(v, &z);
1353 if (r < 0) {
1354 log_error("Failed to parse as unsigned 64bit integer: %s", v);
1355 return r;
1356 }
1357
1358 r = sd_bus_message_append_basic(m, t, &z);
1359 break;
1360 }
1361
1362
1363 case SD_BUS_TYPE_DOUBLE: {
1364 double z;
1365
1366 r = safe_atod(v, &z);
1367 if (r < 0) {
1368 log_error("Failed to parse as double precision floating point: %s", v);
1369 return r;
1370 }
1371
1372 r = sd_bus_message_append_basic(m, t, &z);
1373 break;
1374 }
1375
1376 case SD_BUS_TYPE_STRING:
1377 case SD_BUS_TYPE_OBJECT_PATH:
1378 case SD_BUS_TYPE_SIGNATURE:
1379
1380 r = sd_bus_message_append_basic(m, t, v);
1381 break;
1382
1383 case SD_BUS_TYPE_ARRAY: {
1384 uint32_t n;
1385 size_t k;
1386
1387 r = safe_atou32(v, &n);
1388 if (r < 0) {
1389 log_error("Failed to parse number of array entries: %s", v);
1390 return r;
1391 }
1392
1393 r = signature_element_length(signature, &k);
1394 if (r < 0) {
1395 log_error("Invalid array signature.");
1396 return r;
1397 }
1398
1399 {
1400 unsigned i;
1401 char s[k + 1];
1402 memcpy(s, signature, k);
1403 s[k] = 0;
1404
1405 r = sd_bus_message_open_container(m, SD_BUS_TYPE_ARRAY, s);
1406 if (r < 0)
1407 return bus_log_create_error(r);
1408
1409 for (i = 0; i < n; i++) {
1410 r = message_append_cmdline(m, s, &p);
1411 if (r < 0)
1412 return r;
1413 }
1414 }
1415
1416 signature += k;
1417
1418 r = sd_bus_message_close_container(m);
1419 break;
1420 }
1421
1422 case SD_BUS_TYPE_VARIANT:
1423 r = sd_bus_message_open_container(m, SD_BUS_TYPE_VARIANT, v);
1424 if (r < 0)
1425 return bus_log_create_error(r);
1426
1427 r = message_append_cmdline(m, v, &p);
1428 if (r < 0)
1429 return r;
1430
1431 r = sd_bus_message_close_container(m);
1432 break;
1433
1434 case SD_BUS_TYPE_STRUCT_BEGIN:
1435 case SD_BUS_TYPE_DICT_ENTRY_BEGIN: {
1436 size_t k;
1437
1438 signature--;
1439 p--;
1440
1441 r = signature_element_length(signature, &k);
1442 if (r < 0) {
1443 log_error("Invalid struct/dict entry signature.");
1444 return r;
1445 }
1446
1447 {
1448 char s[k-1];
1449 memcpy(s, signature + 1, k - 2);
1450 s[k - 2] = 0;
1451
1452 r = sd_bus_message_open_container(m, t == SD_BUS_TYPE_STRUCT_BEGIN ? SD_BUS_TYPE_STRUCT : SD_BUS_TYPE_DICT_ENTRY, s);
1453 if (r < 0)
1454 return bus_log_create_error(r);
1455
1456 r = message_append_cmdline(m, s, &p);
1457 if (r < 0)
1458 return r;
1459 }
1460
1461 signature += k;
1462
1463 r = sd_bus_message_close_container(m);
1464 break;
1465 }
1466
1467 case SD_BUS_TYPE_UNIX_FD:
1468 log_error("UNIX file descriptor not supported as type.");
1469 return -EINVAL;
1470
1471 default:
1472 log_error("Unknown signature type %c.", t);
1473 return -EINVAL;
1474 }
1475
1476 if (r < 0)
1477 return bus_log_create_error(r);
1478 }
1479
1480 *x = p;
1481 return 0;
1482}
1483
1484static int call(sd_bus *bus, char *argv[]) {
1485 _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
1486 _cleanup_bus_message_unref_ sd_bus_message *m = NULL, *reply = NULL;
1487 int r;
1488
1489 assert(bus);
1490
1491 if (strv_length(argv) < 5) {
1492 log_error("Expects at least four arguments.");
1493 return -EINVAL;
1494 }
1495
1496 r = sd_bus_message_new_method_call(bus, &m, argv[1], argv[2], argv[3], argv[4]);
79f34de9
LP		 1497 if (r < 0)
1498 return bus_log_create_error(r);
781fa938 1499
38051578
LP		 1500 r = sd_bus_message_set_expect_reply(m, arg_expect_reply);
1501 if (r < 0)
1502 return bus_log_create_error(r);
1503
1504 r = sd_bus_message_set_auto_start(m, arg_auto_start);
1505 if (r < 0)
1506 return bus_log_create_error(r);
1507
1508 r = sd_bus_message_set_allow_interactive_authorization(m, arg_allow_interactive_authorization);
1509 if (r < 0)
1510 return bus_log_create_error(r);
1511
781fa938
LP		 1512 if (!isempty(argv[5])) {
1513 char **p;
1514
1515 p = argv+6;
1516
1517 r = message_append_cmdline(m, argv[5], &p);
1518 if (r < 0)
1519 return r;
1520
1521 if (*p) {
1522 log_error("Too many parameters for signature.");
1523 return -EINVAL;
1524 }
1525 }
1526
38051578
LP		 1527 if (!arg_expect_reply) {
1528 r = sd_bus_send(bus, m, NULL);
1529 if (r < 0) {
1530 log_error("Failed to send message.");
1531 return r;
1532 }
1533
1534 return 0;
1535 }
1536
a44b1081 1537 r = sd_bus_call(bus, m, arg_timeout, &error, &reply);
781fa938
LP		 1538 if (r < 0) {
1539 log_error("%s", bus_error_message(&error, r));
1540 return r;
1541 }
1542
1543 r = sd_bus_message_is_empty(reply);
1544 if (r < 0)
1545 return bus_log_parse_error(r);
1fc55609 1546
781fa938 1547 if (r == 0 && !arg_quiet) {
1fc55609
LP		 1548
1549 if (arg_verbose) {
1550 pager_open_if_enabled();
1551
1552 r = bus_message_dump(reply, stdout, 0);
1553 if (r < 0)
1554 return r;
1555 } else {
1556
1557 fputs(sd_bus_message_get_signature(reply, true), stdout);
1558 fputc(' ', stdout);
1559
1560 r = format_cmdline(reply, stdout, false);
1561 if (r < 0)
1562 return bus_log_parse_error(r);
1563
1564 fputc('\n', stdout);
1565 }
d55192ad
LP		 1566 }
1567
1568 return 0;
1569}
1570
1571static int get_property(sd_bus *bus, char *argv[]) {
1572 _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
1573 unsigned n;
1fc55609 1574 char **i;
d55192ad
LP		 1575 int r;
1576
1577 assert(bus);
1578
1579 n = strv_length(argv);
1fc55609
LP		 1580 if (n < 5) {
1581 log_error("Expects at least four arguments.");
d55192ad
LP		 1582 return -EINVAL;
1583 }
1584
1fc55609 1585 STRV_FOREACH(i, argv + 4) {
d55192ad 1586 _cleanup_bus_message_unref_ sd_bus_message *reply = NULL;
1fc55609
LP		 1587 const char *contents = NULL;
1588 char type;
d55192ad 1589
1fc55609 1590 r = sd_bus_call_method(bus, argv[1], argv[2], "org.freedesktop.DBus.Properties", "Get", &error, &reply, "ss", argv[3], *i);
d55192ad
LP		 1591 if (r < 0) {
1592 log_error("%s", bus_error_message(&error, r));
1593 return r;
1594 }
1595
1fc55609 1596 r = sd_bus_message_peek_type(reply, &type, &contents);
d55192ad
LP		 1597 if (r < 0)
1598 return bus_log_parse_error(r);
1599
1fc55609
LP		 1600 r = sd_bus_message_enter_container(reply, 'v', contents);
1601 if (r < 0)
1602 return bus_log_parse_error(r);
d55192ad 1603
1fc55609 1604 if (arg_verbose) {
d55192ad 1605 pager_open_if_enabled();
d55192ad 1606
1fc55609 1607 r = bus_message_dump(reply, stdout, BUS_MESSAGE_DUMP_SUBTREE_ONLY);
d55192ad 1608 if (r < 0)
1fc55609
LP		 1609 return r;
1610 } else {
1611 fputs(contents, stdout);
1612 fputc(' ', stdout);
d55192ad 1613
1fc55609 1614 r = format_cmdline(reply, stdout, false);
d55192ad
LP		 1615 if (r < 0)
1616 return bus_log_parse_error(r);
1617
1fc55609 1618 fputc('\n', stdout);
d55192ad
LP		 1619 }
1620
1621 r = sd_bus_message_exit_container(reply);
1622 if (r < 0)
1623 return bus_log_parse_error(r);
1fc55609 1624 }
d55192ad 1625
1fc55609
LP		 1626 return 0;
1627}
d55192ad 1628
1fc55609
LP		 1629static int set_property(sd_bus *bus, char *argv[]) {
1630 _cleanup_bus_message_unref_ sd_bus_message *m = NULL;
1631 _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
1632 unsigned n;
1633 char **p;
1634 int r;
d55192ad 1635
1fc55609 1636 assert(bus);
d55192ad 1637
1fc55609
LP		 1638 n = strv_length(argv);
1639 if (n < 6) {
1640 log_error("Expects at least five arguments.");
1641 return -EINVAL;
1642 }
d55192ad 1643
1fc55609
LP		 1644 r = sd_bus_message_new_method_call(bus, &m, argv[1], argv[2], "org.freedesktop.DBus.Properties", "Set");
1645 if (r < 0)
1646 return bus_log_create_error(r);
d55192ad 1647
1fc55609
LP		 1648 r = sd_bus_message_append(m, "ss", argv[3], argv[4]);
1649 if (r < 0)
1650 return bus_log_create_error(r);
d55192ad 1651
1fc55609
LP		 1652 r = sd_bus_message_open_container(m, 'v', argv[5]);
1653 if (r < 0)
1654 return bus_log_create_error(r);
1655
1656 p = argv+6;
1657 r = message_append_cmdline(m, argv[5], &p);
1658 if (r < 0)
1659 return r;
1660
1661 r = sd_bus_message_close_container(m);
1662 if (r < 0)
1663 return bus_log_create_error(r);
1664
1665 if (*p) {
1666 log_error("Too many parameters for signature.");
1667 return -EINVAL;
1668 }
1669
a44b1081 1670 r = sd_bus_call(bus, m, arg_timeout, &error, NULL);
1fc55609
LP		 1671 if (r < 0) {
1672 log_error("%s", bus_error_message(&error, r));
1673 return r;
781fa938
LP		 1674 }
1675
1676 return 0;
1677}
1678
1f849790 1679static int help(void) {
1f849790
LP		 1680 printf("%s [OPTIONS...] {COMMAND} ...\n\n"
1681 "Introspect the bus.\n\n"
d75edbd6
LP		 1682 " -h --help Show this help\n"
1683 " --version Show package version\n"
a86a47ce 1684 " --no-pager Do not pipe output into a pager\n"
17d47d8d 1685 " --no-legend Do not show the headers and footers\n"
d75edbd6
LP		 1686 " --system Connect to system bus\n"
1687 " --user Connect to user bus\n"
1688 " -H --host=[USER@]HOST Operate on remote host\n"
1689 " -M --machine=CONTAINER Operate on local container\n"
1690 " --address=ADDRESS Connect to bus specified by address\n"
56e61788
LP		 1691 " --show-machine Show machine ID column in list\n"
1692 " --unique Only show unique names\n"
1693 " --acquired Only show acquired names\n"
1694 " --activatable Only show activatable names\n"
d9130355 1695 " --match=MATCH Only show matching messages\n"
d28ebe27 1696 " --size=SIZE Maximum length of captured packet\n"
781fa938 1697 " --list Don't show tree, but simple object path list\n"
1fc55609 1698 " --quiet Don't show method call reply\n"
38051578
LP		 1699 " --verbose Show result values in long format\n"
1700 " --expect-reply=BOOL Expect a method call reply\n"
1701 " --auto-start=BOOL Auto-start destination service\n"
1702 " --allow-interactive-authorization=BOOL\n"
a44b1081 1703 " Allow interactive authorization for operation\n"
40ed1a45
LP		 1704 " --timeout=SECS Maximum time to wait for method call completion\n"
1705 " --augment-creds=BOOL Extend credential data with data read from /proc/$PID\n\n"
1f849790 1706 "Commands:\n"
d75edbd6 1707 " list List bus names\n"
2e9efd22 1708 " status [SERVICE] Show bus service, process or bus owner credentials\n"
d94fe1f1 1709 " monitor [SERVICE...] Show bus traffic\n"
1f70b087 1710 " capture [SERVICE...] Capture bus traffic as pcap\n"
0171da06 1711 " tree [SERVICE...] Show object tree of service\n"
4f44c03e 1712 " introspect SERVICE OBJECT [INTERFACE]\n"
0171da06 1713 " call SERVICE OBJECT INTERFACE METHOD [SIGNATURE [ARGUMENT...]]\n"
781fa938 1714 " Call a method\n"
1fc55609 1715 " get-property SERVICE OBJECT INTERFACE PROPERTY...\n"
d55192ad 1716 " Get property value\n"
1fc55609
LP		 1717 " set-property SERVICE OBJECT INTERFACE PROPERTY SIGNATURE ARGUMENT...\n"
1718 " Set property value\n"
601185b4
ZJS		 1719 " help Show this help\n"
1720 , program_invocation_short_name);
1f849790
LP		 1721
1722 return 0;
1723}
1724
1725static int parse_argv(int argc, char *argv[]) {
1726
1727 enum {
1728 ARG_VERSION = 0x100,
1729 ARG_NO_PAGER,
17d47d8d 1730 ARG_NO_LEGEND,
1f849790
LP		 1731 ARG_SYSTEM,
1732 ARG_USER,
1733 ARG_ADDRESS,
1734 ARG_MATCH,
56e61788
LP		 1735 ARG_SHOW_MACHINE,
1736 ARG_UNIQUE,
1737 ARG_ACQUIRED,
1f70b087
LP		 1738 ARG_ACTIVATABLE,
1739 ARG_SIZE,
d9130355 1740 ARG_LIST,
1fc55609 1741 ARG_VERBOSE,
38051578
LP		 1742 ARG_EXPECT_REPLY,
1743 ARG_AUTO_START,
1744 ARG_ALLOW_INTERACTIVE_AUTHORIZATION,
a44b1081 1745 ARG_TIMEOUT,
40ed1a45 1746 ARG_AUGMENT_CREDS,
1f849790
LP		 1747 };
1748
1749 static const struct option options[] = {
56e61788
LP		 1750 { "help", no_argument, NULL, 'h' },
1751 { "version", no_argument, NULL, ARG_VERSION },
1752 { "no-pager", no_argument, NULL, ARG_NO_PAGER },
17d47d8d 1753 { "no-legend", no_argument, NULL, ARG_NO_LEGEND },
56e61788
LP		 1754 { "system", no_argument, NULL, ARG_SYSTEM },
1755 { "user", no_argument, NULL, ARG_USER },
1756 { "address", required_argument, NULL, ARG_ADDRESS },
1757 { "show-machine", no_argument, NULL, ARG_SHOW_MACHINE },
1758 { "unique", no_argument, NULL, ARG_UNIQUE },
1759 { "acquired", no_argument, NULL, ARG_ACQUIRED },
1760 { "activatable", no_argument, NULL, ARG_ACTIVATABLE },
1761 { "match", required_argument, NULL, ARG_MATCH },
1762 { "host", required_argument, NULL, 'H' },
1763 { "machine", required_argument, NULL, 'M' },
1f70b087 1764 { "size", required_argument, NULL, ARG_SIZE },
d9130355 1765 { "list", no_argument, NULL, ARG_LIST },
781fa938 1766 { "quiet", no_argument, NULL, 'q' },
1fc55609 1767 { "verbose", no_argument, NULL, ARG_VERBOSE },
38051578
LP		 1768 { "expect-reply", required_argument, NULL, ARG_EXPECT_REPLY },
1769 { "auto-start", required_argument, NULL, ARG_AUTO_START },
1770 { "allow-interactive-authorization", required_argument, NULL, ARG_ALLOW_INTERACTIVE_AUTHORIZATION },
a44b1081 1771 { "timeout", required_argument, NULL, ARG_TIMEOUT },
40ed1a45 1772 { "augment-creds",required_argument, NULL, ARG_AUGMENT_CREDS},
eb9da376 1773 {},
1f849790
LP		 1774 };
1775
1f70b087 1776 int c, r;
1f849790
LP		 1777
1778 assert(argc >= 0);
1779 assert(argv);
1780
781fa938 1781 while ((c = getopt_long(argc, argv, "hH:M:q", options, NULL)) >= 0)
1f849790
LP		 1782
1783 switch (c) {
1784
1785 case 'h':
1786 return help();
1787
1788 case ARG_VERSION:
1789 puts(PACKAGE_STRING);
1790 puts(SYSTEMD_FEATURES);
1791 return 0;
1792
1793 case ARG_NO_PAGER:
1794 arg_no_pager = true;
1795 break;
1796
17d47d8d
TA		 1797 case ARG_NO_LEGEND:
1798 arg_legend = false;
1799 break;
1800
1f849790
LP		 1801 case ARG_USER:
1802 arg_user = true;
1803 break;
1804
1805 case ARG_SYSTEM:
1806 arg_user = false;
1807 break;
1808
1809 case ARG_ADDRESS:
1810 arg_address = optarg;
1811 break;
1812
56e61788
LP		 1813 case ARG_SHOW_MACHINE:
1814 arg_show_machine = true;
1815 break;
1816
1817 case ARG_UNIQUE:
1818 arg_unique = true;
1f849790
LP		 1819 break;
1820
56e61788
LP		 1821 case ARG_ACQUIRED:
1822 arg_acquired = true;
1823 break;
1824
1825 case ARG_ACTIVATABLE:
1826 arg_activatable = true;
a4297f08
LP		 1827 break;
1828
1f849790
LP		 1829 case ARG_MATCH:
1830 if (strv_extend(&arg_matches, optarg) < 0)
1831 return log_oom();
1832 break;
1833
1f70b087 1834 case ARG_SIZE: {
59f448cf 1835 uint64_t sz;
1f70b087 1836
59f448cf 1837 r = parse_size(optarg, 1024, &sz);
1f70b087
LP		 1838 if (r < 0) {
1839 log_error("Failed to parse size: %s", optarg);
1840 return r;
1841 }
1842
59f448cf 1843 if ((uint64_t) (size_t) sz != sz) {
1f70b087
LP		 1844 log_error("Size out of range.");
1845 return -E2BIG;
1846 }
1847
59f448cf 1848 arg_snaplen = (size_t) sz;
1f70b087
LP		 1849 break;
1850 }
1851
d9130355
LP		 1852 case ARG_LIST:
1853 arg_list = true;
1854 break;
1855
d75edbd6
LP		 1856 case 'H':
1857 arg_transport = BUS_TRANSPORT_REMOTE;
1858 arg_host = optarg;
1859 break;
1860
1861 case 'M':
de33fc62 1862 arg_transport = BUS_TRANSPORT_MACHINE;
d75edbd6
LP		 1863 arg_host = optarg;
1864 break;
1865
781fa938
LP		 1866 case 'q':
1867 arg_quiet = true;
1868 break;
1869
1fc55609
LP		 1870 case ARG_VERBOSE:
1871 arg_verbose = true;
1872 break;
1873
38051578
LP		 1874 case ARG_EXPECT_REPLY:
1875 r = parse_boolean(optarg);
1876 if (r < 0) {
1877 log_error("Failed to parse --expect-reply= parameter.");
1878 return r;
1879 }
1880
1881 arg_expect_reply = !!r;
1882 break;
1883
1884
1885 case ARG_AUTO_START:
1886 r = parse_boolean(optarg);
1887 if (r < 0) {
1888 log_error("Failed to parse --auto-start= parameter.");
1889 return r;
1890 }
1891
1892 arg_auto_start = !!r;
1893 break;
1894
1895
1896 case ARG_ALLOW_INTERACTIVE_AUTHORIZATION:
1897 r = parse_boolean(optarg);
1898 if (r < 0) {
1899 log_error("Failed to parse --allow-interactive-authorization= parameter.");
1900 return r;
1901 }
1902
1903 arg_allow_interactive_authorization = !!r;
1904 break;
1905
a44b1081
LP		 1906 case ARG_TIMEOUT:
1907 r = parse_sec(optarg, &arg_timeout);
1908 if (r < 0) {
1909 log_error("Failed to parse --timeout= parameter.");
1910 return r;
1911 }
1912
1913 break;
1914
40ed1a45
LP		 1915 case ARG_AUGMENT_CREDS:
1916 r = parse_boolean(optarg);
1917 if (r < 0) {
1918 log_error("Failed to parse --augment-creds= parameter.");
1919 return r;
1920 }
1921
1922 arg_augment_creds = !!r;
1923 break;
1924
1f849790
LP		 1925 case '?':
1926 return -EINVAL;
1927
1928 default:
eb9da376 1929 assert_not_reached("Unhandled option");
1f849790 1930 }
1f849790
LP		 1931
1932 return 1;
1933}
1934
1935static int busctl_main(sd_bus *bus, int argc, char *argv[]) {
1936 assert(bus);
1937
1938 if (optind >= argc ||
1939 streq(argv[optind], "list"))
1940 return list_bus_names(bus, argv + optind);
1941
1942 if (streq(argv[optind], "monitor"))
1f70b087
LP		 1943 return monitor(bus, argv + optind, message_dump);
1944
1945 if (streq(argv[optind], "capture"))
1946 return capture(bus, argv + optind);
1f849790 1947
95c4fe82
LP		 1948 if (streq(argv[optind], "status"))
1949 return status(bus, argv + optind);
d9130355
LP		 1950
1951 if (streq(argv[optind], "tree"))
1952 return tree(bus, argv + optind);
781fa938 1953
0171da06
LP		 1954 if (streq(argv[optind], "introspect"))
1955 return introspect(bus, argv + optind);
1956
781fa938
LP		 1957 if (streq(argv[optind], "call"))
1958 return call(bus, argv + optind);
d55192ad
LP		 1959
1960 if (streq(argv[optind], "get-property"))
1961 return get_property(bus, argv + optind);
95c4fe82 1962
1fc55609
LP		 1963 if (streq(argv[optind], "set-property"))
1964 return set_property(bus, argv + optind);
1965
1f849790
LP		 1966 if (streq(argv[optind], "help"))
1967 return help();
1968
1969 log_error("Unknown command '%s'", argv[optind]);
1970 return -EINVAL;
1971}
1972
1973int main(int argc, char *argv[]) {
03976f7b 1974 _cleanup_bus_flush_close_unref_ sd_bus *bus = NULL;
1f849790
LP		 1975 int r;
1976
1977 log_parse_environment();
1978 log_open();
1979
1980 r = parse_argv(argc, argv);
1981 if (r <= 0)
1982 goto finish;
1983
09365592
LP		 1984 r = sd_bus_new(&bus);
1985 if (r < 0) {
da927ba9 1986 log_error_errno(r, "Failed to allocate bus: %m");
09365592
LP		 1987 goto finish;
1988 }
1989
1f70b087
LP		 1990 if (streq_ptr(argv[optind], "monitor") ||
1991 streq_ptr(argv[optind], "capture")) {
09365592
LP		 1992
1993 r = sd_bus_set_monitor(bus, true);
1f849790 1994 if (r < 0) {
da927ba9 1995 log_error_errno(r, "Failed to set monitor mode: %m");
1f849790
LP		 1996 goto finish;
1997 }
d0ce7734 1998
b5dae4c7 1999 r = sd_bus_negotiate_creds(bus, true, _SD_BUS_CREDS_ALL);
d0ce7734 2000 if (r < 0) {
da927ba9 2001 log_error_errno(r, "Failed to enable credentials: %m");
d0ce7734
LP		 2002 goto finish;
2003 }
2004
2005 r = sd_bus_negotiate_timestamp(bus, true);
2006 if (r < 0) {
da927ba9 2007 log_error_errno(r, "Failed to enable timestamps: %m");
d0ce7734
LP		 2008 goto finish;
2009 }
2010
2011 r = sd_bus_negotiate_fds(bus, true);
2012 if (r < 0) {
da927ba9 2013 log_error_errno(r, "Failed to enable fds: %m");
d0ce7734
LP		 2014 goto finish;
2015 }
09365592 2016 }
1f849790 2017
8d87d4a9
DH		 2018 r = sd_bus_set_bus_client(bus, true);
2019 if (r < 0) {
2020 log_error_errno(r, "Failed to set bus client: %m");
2021 goto finish;
2022 }
2023
09365592 2024 if (arg_address)
1f849790 2025 r = sd_bus_set_address(bus, arg_address);
09365592
LP		 2026 else {
2027 switch (arg_transport) {
1f849790 2028
09365592 2029 case BUS_TRANSPORT_LOCAL:
3acc1daf
LP		 2030 if (arg_user) {
2031 bus->is_user = true;
09365592 2032 r = bus_set_address_user(bus);
3acc1daf
LP		 2033 } else {
2034 bus->is_system = true;
09365592 2035 r = bus_set_address_system(bus);
3acc1daf 2036 }
09365592
LP		 2037 break;
2038
2039 case BUS_TRANSPORT_REMOTE:
2040 r = bus_set_address_system_remote(bus, arg_host);
2041 break;
2042
de33fc62
LP		 2043 case BUS_TRANSPORT_MACHINE:
2044 r = bus_set_address_system_machine(bus, arg_host);
09365592
LP		 2045 break;
2046
2047 default:
2048 assert_not_reached("Hmm, unknown transport type.");
1f849790 2049 }
09365592
LP		 2050 }
2051 if (r < 0) {
da927ba9 2052 log_error_errno(r, "Failed to set address: %m");
09365592
LP		 2053 goto finish;
2054 }
1f849790 2055
09365592 2056 r = sd_bus_start(bus);
1f849790 2057 if (r < 0) {
da927ba9 2058 log_error_errno(r, "Failed to connect to bus: %m");
1f849790
LP		 2059 goto finish;
2060 }
2061
2062 r = busctl_main(bus, argc, argv);
2063
2064finish:
2065 pager_close();
d75edbd6 2066
1f849790 2067 strv_free(arg_matches);
de1c301e 2068
de1c301e
LP		 2069 return r < 0 ? EXIT_FAILURE : EXIT_SUCCESS;
2070}
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