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[thirdparty/systemd.git] / src / libsystemd / sd-bus / busctl.c
CommitLineData
de1c301e
LP		 1/***
2 This file is part of systemd.
3
4 Copyright 2013 Lennart Poettering
5
6 systemd is free software; you can redistribute it and/or modify it
7 under the terms of the GNU Lesser General Public License as published by
8 the Free Software Foundation; either version 2.1 of the License, or
9 (at your option) any later version.
10
11 systemd is distributed in the hope that it will be useful, but
12 WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 Lesser General Public License for more details.
15
16 You should have received a copy of the GNU Lesser General Public License
17 along with systemd; If not, see <http://www.gnu.org/licenses/>.
18***/
19
1f849790
LP		 20#include <getopt.h>
21
de1c301e 22#include "sd-bus.h"
3f6fd1ba 23
b5efdb8a 24#include "alloc-util.h"
2b5c5383 25#include "bus-dump.h"
3f6fd1ba 26#include "bus-internal.h"
781fa938 27#include "bus-signature.h"
79f34de9 28#include "bus-type.h"
3f6fd1ba 29#include "bus-util.h"
a1ad3767 30#include "busctl-introspect.h"
4f5dd394 31#include "escape.h"
3ffd4af2 32#include "fd-util.h"
8752c575 33#include "locale-util.h"
3f6fd1ba
LP		 34#include "log.h"
35#include "pager.h"
6bedfcbb 36#include "parse-util.h"
3f6fd1ba
LP		 37#include "path-util.h"
38#include "set.h"
39#include "strv.h"
288a74cc 40#include "terminal-util.h"
b1d4f8e1 41#include "user-util.h"
3f6fd1ba 42#include "util.h"
de1c301e 43
1f849790 44static bool arg_no_pager = false;
17d47d8d 45static bool arg_legend = true;
1f849790 46static char *arg_address = NULL;
56e61788
LP		 47static bool arg_unique = false;
48static bool arg_acquired = false;
49static bool arg_activatable = false;
50static bool arg_show_machine = false;
1f849790 51static char **arg_matches = NULL;
d75edbd6
LP		 52static BusTransport arg_transport = BUS_TRANSPORT_LOCAL;
53static char *arg_host = NULL;
54static bool arg_user = false;
1f70b087 55static size_t arg_snaplen = 4096;
d9130355 56static bool arg_list = false;
781fa938 57static bool arg_quiet = false;
1fc55609 58static bool arg_verbose = false;
38051578
LP		 59static bool arg_expect_reply = true;
60static bool arg_auto_start = true;
61static bool arg_allow_interactive_authorization = true;
40ed1a45 62static bool arg_augment_creds = true;
a44b1081 63static usec_t arg_timeout = 0;
1f849790 64
1d58a1fe
LP		 65#define NAME_IS_ACQUIRED INT_TO_PTR(1)
66#define NAME_IS_ACTIVATABLE INT_TO_PTR(2)
67
1f849790 68static int list_bus_names(sd_bus *bus, char **argv) {
71f2ab46 69 _cleanup_strv_free_ char **acquired = NULL, **activatable = NULL;
5e2f14e6
LP		 70 _cleanup_free_ char **merged = NULL;
71 _cleanup_hashmap_free_ Hashmap *names = NULL;
de1c301e
LP		 72 char **i;
73 int r;
89ffcd2a 74 size_t max_i = 0;
5e2f14e6
LP		 75 unsigned n = 0;
76 void *v;
77 char *k;
78 Iterator iterator;
de1c301e 79
1f849790 80 assert(bus);
de1c301e 81
d9130355
LP		 82 if (!arg_unique && !arg_acquired && !arg_activatable)
83 arg_unique = arg_acquired = arg_activatable = true;
84
56e61788 85 r = sd_bus_list_names(bus, (arg_acquired || arg_unique) ? &acquired : NULL, arg_activatable ? &activatable : NULL);
23bbb0de
MS		 86 if (r < 0)
87 return log_error_errno(r, "Failed to list names: %m");
de1c301e 88
ea4b98e6 89 pager_open(arg_no_pager, false);
1f849790 90
d5099efc 91 names = hashmap_new(&string_hash_ops);
5e2f14e6
LP		 92 if (!names)
93 return log_oom();
89ffcd2a 94
5e2f14e6 95 STRV_FOREACH(i, acquired) {
71f2ab46
LP		 96 max_i = MAX(max_i, strlen(*i));
97
1d58a1fe 98 r = hashmap_put(names, *i, NAME_IS_ACQUIRED);
23bbb0de
MS		 99 if (r < 0)
100 return log_error_errno(r, "Failed to add to hashmap: %m");
5e2f14e6
LP		 101 }
102
103 STRV_FOREACH(i, activatable) {
89ffcd2a
LP		 104 max_i = MAX(max_i, strlen(*i));
105
1d58a1fe 106 r = hashmap_put(names, *i, NAME_IS_ACTIVATABLE);
23bbb0de
MS		 107 if (r < 0 && r != -EEXIST)
108 return log_error_errno(r, "Failed to add to hashmap: %m");
5e2f14e6
LP		 109 }
110
111 merged = new(char*, hashmap_size(names) + 1);
112 HASHMAP_FOREACH_KEY(v, k, names, iterator)
113 merged[n++] = k;
114
115 merged[n] = NULL;
116 strv_sort(merged);
117
17d47d8d
TA		 118 if (arg_legend) {
119 printf("%-*s %*s %-*s %-*s %-*s %-*s %-*s %-*s",
455971c1 120 (int) max_i, "NAME", 10, "PID", 15, "PROCESS", 16, "USER", 13, "CONNECTION", 25, "UNIT", 10, "SESSION", 19, "DESCRIPTION");
89ffcd2a 121
17d47d8d
TA		 122 if (arg_show_machine)
123 puts(" MACHINE");
124 else
125 putchar('\n');
126 }
a4297f08 127
5e2f14e6 128 STRV_FOREACH(i, merged) {
4afd3348 129 _cleanup_(sd_bus_creds_unrefp) sd_bus_creds *creds = NULL;
5e2f14e6 130 sd_id128_t mid;
71f2ab46 131
1d58a1fe 132 if (hashmap_get(names, *i) == NAME_IS_ACTIVATABLE) {
5e2f14e6 133 /* Activatable */
71f2ab46 134
5e2f14e6 135 printf("%-*s", (int) max_i, *i);
56e61788
LP		 136 printf(" - - - (activatable) - - ");
137 if (arg_show_machine)
5e2f14e6 138 puts(" -");
56e61788
LP		 139 else
140 putchar('\n');
71f2ab46
LP		 141 continue;
142
5e2f14e6 143 }
de1c301e 144
56e61788
LP		 145 if (!arg_unique && (*i)[0] == ':')
146 continue;
147
148 if (!arg_acquired && (*i)[0] != ':')
1f849790 149 continue;
89ffcd2a
LP		 150
151 printf("%-*s", (int) max_i, *i);
de1c301e 152
40ed1a45
LP		 153 r = sd_bus_get_name_creds(
154 bus, *i,
155 (arg_augment_creds ? SD_BUS_CREDS_AUGMENT : 0) |
05bae4a6 156 SD_BUS_CREDS_EUID|SD_BUS_CREDS_PID|SD_BUS_CREDS_COMM|
40ed1a45
LP		 157 SD_BUS_CREDS_UNIQUE_NAME|SD_BUS_CREDS_UNIT|SD_BUS_CREDS_SESSION|
158 SD_BUS_CREDS_DESCRIPTION, &creds);
89ffcd2a 159 if (r >= 0) {
14008e4e 160 const char *unique, *session, *unit, *cn;
5b12334d
LP		 161 pid_t pid;
162 uid_t uid;
de1c301e 163
5b12334d
LP		 164 r = sd_bus_creds_get_pid(creds, &pid);
165 if (r >= 0) {
166 const char *comm = NULL;
de1c301e 167
5b12334d 168 sd_bus_creds_get_comm(creds, &comm);
89ffcd2a 169
5b12334d
LP		 170 printf(" %10lu %-15s", (unsigned long) pid, strna(comm));
171 } else
a4297f08 172 fputs(" - - ", stdout);
89ffcd2a 173
05bae4a6 174 r = sd_bus_creds_get_euid(creds, &uid);
5b12334d
LP		 175 if (r >= 0) {
176 _cleanup_free_ char *u = NULL;
89ffcd2a 177
5b12334d
LP		 178 u = uid_to_name(uid);
179 if (!u)
180 return log_oom();
89ffcd2a 181
5b12334d
LP		 182 if (strlen(u) > 16)
183 u[16] = 0;
184
185 printf(" %-16s", u);
186 } else
a4297f08 187 fputs(" - ", stdout);
89ffcd2a 188
49b832c5
LP		 189 r = sd_bus_creds_get_unique_name(creds, &unique);
190 if (r >= 0)
56e61788
LP		 191 printf(" %-13s", unique);
192 else
193 fputs(" - ", stdout);
194
195 r = sd_bus_creds_get_unit(creds, &unit);
196 if (r >= 0) {
197 _cleanup_free_ char *e;
198
199 e = ellipsize(unit, 25, 100);
200 if (!e)
201 return log_oom();
202
203 printf(" %-25s", e);
204 } else
205 fputs(" - ", stdout);
206
207 r = sd_bus_creds_get_session(creds, &session);
208 if (r >= 0)
209 printf(" %-10s", session);
a4297f08 210 else
56e61788 211 fputs(" - ", stdout);
7b0b392f 212
455971c1 213 r = sd_bus_creds_get_description(creds, &cn);
14008e4e
LP		 214 if (r >= 0)
215 printf(" %-19s", cn);
216 else
217 fputs(" - ", stdout);
218
7b0b392f 219 } else
14008e4e 220 printf(" - - - - - - - ");
a4297f08 221
56e61788 222 if (arg_show_machine) {
056f95d0 223 r = sd_bus_get_name_machine_id(bus, *i, &mid);
a4297f08
LP		 224 if (r >= 0) {
225 char m[SD_ID128_STRING_MAX];
226 printf(" %s\n", sd_id128_to_string(mid, m));
227 } else
228 puts(" -");
56e61788
LP		 229 } else
230 putchar('\n');
de1c301e
LP		 231 }
232
1f849790
LP		 233 return 0;
234}
235
d9130355
LP		 236static void print_subtree(const char *prefix, const char *path, char **l) {
237 const char *vertical, *space;
238 char **n;
239
240 /* We assume the list is sorted. Let's first skip over the
241 * entry we are looking at. */
242 for (;;) {
243 if (!*l)
244 return;
245
246 if (!streq(*l, path))
247 break;
248
249 l++;
250 }
251
63c372cb
LP		 252 vertical = strjoina(prefix, draw_special_char(DRAW_TREE_VERTICAL));
253 space = strjoina(prefix, draw_special_char(DRAW_TREE_SPACE));
d9130355
LP		 254
255 for (;;) {
256 bool has_more = false;
257
258 if (!*l || !path_startswith(*l, path))
259 break;
260
261 n = l + 1;
262 for (;;) {
263 if (!*n || !path_startswith(*n, path))
264 break;
265
266 if (!path_startswith(*n, *l)) {
267 has_more = true;
268 break;
269 }
270
271 n++;
272 }
273
274 printf("%s%s%s\n", prefix, draw_special_char(has_more ? DRAW_TREE_BRANCH : DRAW_TREE_RIGHT), *l);
275
276 print_subtree(has_more ? vertical : space, *l, l);
277 l = n;
278 }
279}
280
281static void print_tree(const char *prefix, char **l) {
282
ea4b98e6 283 pager_open(arg_no_pager, false);
d9130355
LP		 284
285 prefix = strempty(prefix);
286
287 if (arg_list) {
288 char **i;
289
290 STRV_FOREACH(i, l)
291 printf("%s%s\n", prefix, *i);
292 return;
293 }
294
56c8b52d
LP		 295 if (strv_isempty(l)) {
296 printf("No objects discovered.\n");
297 return;
298 }
299
300 if (streq(l[0], "/") && !l[1]) {
301 printf("Only root object discovered.\n");
302 return;
303 }
d9130355
LP		 304
305 print_subtree(prefix, "/", l);
306}
307
a1ad3767
LP		 308static int on_path(const char *path, void *userdata) {
309 Set *paths = userdata;
d9130355
LP		 310 int r;
311
a1ad3767 312 assert(paths);
d9130355 313
a1ad3767
LP		 314 r = set_put_strdup(paths, path);
315 if (r < 0)
316 return log_oom();
d9130355 317
a1ad3767 318 return 0;
d9130355
LP		 319}
320
73fc23c0 321static int find_nodes(sd_bus *bus, const char *service, const char *path, Set *paths, bool many) {
0171da06 322 static const XMLIntrospectOps ops = {
a1ad3767
LP		 323 .on_path = on_path,
324 };
325
4afd3348
LP		 326 _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL;
327 _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
a1ad3767 328 const char *xml;
d9130355
LP		 329 int r;
330
331 r = sd_bus_call_method(bus, service, path, "org.freedesktop.DBus.Introspectable", "Introspect", &error, &reply, "");
332 if (r < 0) {
73fc23c0
LP		 333 if (many)
334 printf("Failed to introspect object %s of service %s: %s\n", path, service, bus_error_message(&error, r));
335 else
336 log_error("Failed to introspect object %s of service %s: %s", path, service, bus_error_message(&error, r));
d9130355
LP		 337 return r;
338 }
339
340 r = sd_bus_message_read(reply, "s", &xml);
341 if (r < 0)
342 return bus_log_parse_error(r);
343
a1ad3767 344 return parse_xml_introspect(path, xml, &ops, paths);
d9130355
LP		 345}
346
73fc23c0 347static int tree_one(sd_bus *bus, const char *service, const char *prefix, bool many) {
d9130355
LP		 348 _cleanup_set_free_free_ Set *paths = NULL, *done = NULL, *failed = NULL;
349 _cleanup_free_ char **l = NULL;
350 char *m;
351 int r;
352
353 paths = set_new(&string_hash_ops);
354 if (!paths)
355 return log_oom();
356
357 done = set_new(&string_hash_ops);
358 if (!done)
359 return log_oom();
360
361 failed = set_new(&string_hash_ops);
362 if (!failed)
363 return log_oom();
364
365 m = strdup("/");
366 if (!m)
367 return log_oom();
368
369 r = set_put(paths, m);
370 if (r < 0) {
371 free(m);
372 return log_oom();
373 }
374
375 for (;;) {
376 _cleanup_free_ char *p = NULL;
377 int q;
378
379 p = set_steal_first(paths);
380 if (!p)
381 break;
382
383 if (set_contains(done, p) ||
384 set_contains(failed, p))
385 continue;
386
73fc23c0 387 q = find_nodes(bus, service, p, paths, many);
d9130355
LP		 388 if (q < 0) {
389 if (r >= 0)
390 r = q;
391
392 q = set_put(failed, p);
393 } else
394 q = set_put(done, p);
395
396 if (q < 0)
397 return log_oom();
398
399 assert(q != 0);
400 p = NULL;
401 }
402
ea4b98e6 403 pager_open(arg_no_pager, false);
73fc23c0 404
d9130355
LP		 405 l = set_get_strv(done);
406 if (!l)
407 return log_oom();
408
409 strv_sort(l);
410 print_tree(prefix, l);
411
412 fflush(stdout);
413
414 return r;
415}
416
417static int tree(sd_bus *bus, char **argv) {
418 char **i;
419 int r = 0;
420
421 if (!arg_unique && !arg_acquired)
422 arg_acquired = true;
423
424 if (strv_length(argv) <= 1) {
425 _cleanup_strv_free_ char **names = NULL;
56c8b52d 426 bool not_first = false;
d9130355
LP		 427
428 r = sd_bus_list_names(bus, &names, NULL);
23bbb0de
MS		 429 if (r < 0)
430 return log_error_errno(r, "Failed to get name list: %m");
d9130355 431
ea4b98e6 432 pager_open(arg_no_pager, false);
d9130355
LP		 433
434 STRV_FOREACH(i, names) {
435 int q;
436
437 if (!arg_unique && (*i)[0] == ':')
438 continue;
439
440 if (!arg_acquired && (*i)[0] == ':')
441 continue;
442
443 if (not_first)
444 printf("\n");
445
1fc464f6 446 printf("Service %s%s%s:\n", ansi_highlight(), *i, ansi_normal());
d9130355 447
73fc23c0 448 q = tree_one(bus, *i, NULL, true);
d9130355
LP		 449 if (q < 0 && r >= 0)
450 r = q;
451
452 not_first = true;
453 }
454 } else {
d9130355
LP		 455 STRV_FOREACH(i, argv+1) {
456 int q;
457
458 if (i > argv+1)
459 printf("\n");
460
73fc23c0 461 if (argv[2]) {
ea4b98e6 462 pager_open(arg_no_pager, false);
1fc464f6 463 printf("Service %s%s%s:\n", ansi_highlight(), *i, ansi_normal());
73fc23c0 464 }
d9130355 465
73fc23c0 466 q = tree_one(bus, *i, NULL, !!argv[2]);
d9130355
LP		 467 if (q < 0 && r >= 0)
468 r = q;
469 }
470 }
471
472 return r;
473}
474
1fc55609
LP		 475static int format_cmdline(sd_bus_message *m, FILE *f, bool needs_space) {
476 int r;
477
478 for (;;) {
479 const char *contents = NULL;
480 char type;
481 union {
482 uint8_t u8;
483 uint16_t u16;
484 int16_t s16;
485 uint32_t u32;
486 int32_t s32;
487 uint64_t u64;
488 int64_t s64;
489 double d64;
490 const char *string;
491 int i;
492 } basic;
493
494 r = sd_bus_message_peek_type(m, &type, &contents);
317f2fc9 495 if (r < 0)
1fc55609 496 return r;
317f2fc9
LP		 497 if (r == 0)
498 return needs_space;
1fc55609
LP		 499
500 if (bus_type_is_container(type) > 0) {
501
502 r = sd_bus_message_enter_container(m, type, contents);
503 if (r < 0)
504 return r;
505
506 if (type == SD_BUS_TYPE_ARRAY) {
507 unsigned n = 0;
508
509 /* count array entries */
510 for (;;) {
511
512 r = sd_bus_message_skip(m, contents);
513 if (r < 0)
514 return r;
515 if (r == 0)
516 break;
517
518 n++;
519 }
520
521 r = sd_bus_message_rewind(m, false);
522 if (r < 0)
523 return r;
524
525 if (needs_space)
526 fputc(' ', f);
527
528 fprintf(f, "%u", n);
317f2fc9
LP		 529 needs_space = true;
530
1fc55609
LP		 531 } else if (type == SD_BUS_TYPE_VARIANT) {
532
533 if (needs_space)
534 fputc(' ', f);
535
536 fprintf(f, "%s", contents);
317f2fc9 537 needs_space = true;
1fc55609
LP		 538 }
539
317f2fc9 540 r = format_cmdline(m, f, needs_space);
1fc55609
LP		 541 if (r < 0)
542 return r;
543
317f2fc9
LP		 544 needs_space = r > 0;
545
1fc55609
LP		 546 r = sd_bus_message_exit_container(m);
547 if (r < 0)
548 return r;
549
550 continue;
551 }
552
553 r = sd_bus_message_read_basic(m, type, &basic);
554 if (r < 0)
555 return r;
556
557 if (needs_space)
558 fputc(' ', f);
559
560 switch (type) {
561 case SD_BUS_TYPE_BYTE:
562 fprintf(f, "%u", basic.u8);
563 break;
564
565 case SD_BUS_TYPE_BOOLEAN:
566 fputs(true_false(basic.i), f);
567 break;
568
569 case SD_BUS_TYPE_INT16:
570 fprintf(f, "%i", basic.s16);
571 break;
572
573 case SD_BUS_TYPE_UINT16:
574 fprintf(f, "%u", basic.u16);
575 break;
576
577 case SD_BUS_TYPE_INT32:
578 fprintf(f, "%i", basic.s32);
579 break;
580
581 case SD_BUS_TYPE_UINT32:
582 fprintf(f, "%u", basic.u32);
583 break;
584
585 case SD_BUS_TYPE_INT64:
586 fprintf(f, "%" PRIi64, basic.s64);
587 break;
588
589 case SD_BUS_TYPE_UINT64:
590 fprintf(f, "%" PRIu64, basic.u64);
591 break;
592
593 case SD_BUS_TYPE_DOUBLE:
594 fprintf(f, "%g", basic.d64);
595 break;
596
597 case SD_BUS_TYPE_STRING:
598 case SD_BUS_TYPE_OBJECT_PATH:
599 case SD_BUS_TYPE_SIGNATURE: {
600 _cleanup_free_ char *b = NULL;
601
602 b = cescape(basic.string);
603 if (!b)
604 return -ENOMEM;
605
606 fprintf(f, "\"%s\"", b);
607 break;
608 }
609
610 case SD_BUS_TYPE_UNIX_FD:
611 fprintf(f, "%i", basic.i);
612 break;
613
614 default:
615 assert_not_reached("Unknown basic type.");
616 }
617
1ed24c61 618 needs_space = true;
1fc55609
LP		 619 }
620}
621
0171da06
LP		 622typedef struct Member {
623 const char *type;
624 char *interface;
625 char *name;
626 char *signature;
627 char *result;
1fc55609 628 char *value;
0171da06
LP		 629 bool writable;
630 uint64_t flags;
631} Member;
632
b826ab58 633static void member_hash_func(const void *p, struct siphash *state) {
0171da06 634 const Member *m = p;
1e2527a6 635 uint64_t arity = 1;
0171da06
LP		 636
637 assert(m);
638 assert(m->type);
639
b826ab58 640 string_hash_func(m->type, state);
0171da06 641
1e2527a6
TG		 642 arity += !!m->name + !!m->interface;
643
644 uint64_hash_func(&arity, state);
645
0171da06 646 if (m->name)
b826ab58 647 string_hash_func(m->name, state);
0171da06
LP		 648
649 if (m->interface)
b826ab58 650 string_hash_func(m->interface, state);
0171da06
LP		 651}
652
653static int member_compare_func(const void *a, const void *b) {
654 const Member *x = a, *y = b;
655 int d;
656
657 assert(x);
658 assert(y);
659 assert(x->type);
660 assert(y->type);
661
c030a850
NK		 662 d = strcmp_ptr(x->interface, y->interface);
663 if (d != 0)
664 return d;
0171da06
LP		 665
666 d = strcmp(x->type, y->type);
667 if (d != 0)
668 return d;
669
c030a850 670 return strcmp_ptr(x->name, y->name);
0171da06
LP		 671}
672
673static int member_compare_funcp(const void *a, const void *b) {
674 const Member *const * x = (const Member *const *) a, * const *y = (const Member *const *) b;
675
676 return member_compare_func(*x, *y);
677}
678
679static void member_free(Member *m) {
680 if (!m)
681 return;
682
683 free(m->interface);
684 free(m->name);
685 free(m->signature);
686 free(m->result);
1fc55609 687 free(m->value);
0171da06
LP		 688 free(m);
689}
690
691DEFINE_TRIVIAL_CLEANUP_FUNC(Member*, member_free);
692
693static void member_set_free(Set *s) {
694 Member *m;
695
696 while ((m = set_steal_first(s)))
697 member_free(m);
698
699 set_free(s);
700}
701
702DEFINE_TRIVIAL_CLEANUP_FUNC(Set*, member_set_free);
703
704static int on_interface(const char *interface, uint64_t flags, void *userdata) {
705 _cleanup_(member_freep) Member *m;
706 Set *members = userdata;
707 int r;
708
709 assert(interface);
710 assert(members);
711
712 m = new0(Member, 1);
713 if (!m)
714 return log_oom();
715
716 m->type = "interface";
717 m->flags = flags;
718
719 r = free_and_strdup(&m->interface, interface);
720 if (r < 0)
721 return log_oom();
722
723 r = set_put(members, m);
724 if (r <= 0) {
725 log_error("Duplicate interface");
726 return -EINVAL;
727 }
728
729 m = NULL;
730 return 0;
731}
732
733static int on_method(const char *interface, const char *name, const char *signature, const char *result, uint64_t flags, void *userdata) {
734 _cleanup_(member_freep) Member *m;
735 Set *members = userdata;
736 int r;
737
738 assert(interface);
739 assert(name);
740
741 m = new0(Member, 1);
742 if (!m)
743 return log_oom();
744
745 m->type = "method";
746 m->flags = flags;
747
748 r = free_and_strdup(&m->interface, interface);
749 if (r < 0)
750 return log_oom();
751
752 r = free_and_strdup(&m->name, name);
753 if (r < 0)
754 return log_oom();
755
756 r = free_and_strdup(&m->signature, signature);
757 if (r < 0)
758 return log_oom();
759
760 r = free_and_strdup(&m->result, result);
761 if (r < 0)
762 return log_oom();
763
764 r = set_put(members, m);
765 if (r <= 0) {
766 log_error("Duplicate method");
767 return -EINVAL;
768 }
769
770 m = NULL;
771 return 0;
772}
773
774static int on_signal(const char *interface, const char *name, const char *signature, uint64_t flags, void *userdata) {
775 _cleanup_(member_freep) Member *m;
776 Set *members = userdata;
777 int r;
778
779 assert(interface);
780 assert(name);
781
782 m = new0(Member, 1);
783 if (!m)
784 return log_oom();
785
786 m->type = "signal";
787 m->flags = flags;
788
789 r = free_and_strdup(&m->interface, interface);
790 if (r < 0)
791 return log_oom();
792
793 r = free_and_strdup(&m->name, name);
794 if (r < 0)
795 return log_oom();
796
797 r = free_and_strdup(&m->signature, signature);
798 if (r < 0)
799 return log_oom();
800
801 r = set_put(members, m);
802 if (r <= 0) {
803 log_error("Duplicate signal");
804 return -EINVAL;
805 }
806
807 m = NULL;
808 return 0;
809}
810
811static int on_property(const char *interface, const char *name, const char *signature, bool writable, uint64_t flags, void *userdata) {
812 _cleanup_(member_freep) Member *m;
813 Set *members = userdata;
814 int r;
815
816 assert(interface);
817 assert(name);
818
819 m = new0(Member, 1);
820 if (!m)
821 return log_oom();
822
823 m->type = "property";
824 m->flags = flags;
825 m->writable = writable;
826
827 r = free_and_strdup(&m->interface, interface);
828 if (r < 0)
829 return log_oom();
830
831 r = free_and_strdup(&m->name, name);
832 if (r < 0)
833 return log_oom();
834
835 r = free_and_strdup(&m->signature, signature);
836 if (r < 0)
837 return log_oom();
838
839 r = set_put(members, m);
840 if (r <= 0) {
841 log_error("Duplicate property");
842 return -EINVAL;
843 }
844
845 m = NULL;
846 return 0;
847}
848
849static const char *strdash(const char *x) {
850 return isempty(x) ? "-" : x;
851}
852
853static int introspect(sd_bus *bus, char **argv) {
854 static const struct hash_ops member_hash_ops = {
855 .hash = member_hash_func,
856 .compare = member_compare_func,
857 };
858
859 static const XMLIntrospectOps ops = {
860 .on_interface = on_interface,
861 .on_method = on_method,
862 .on_signal = on_signal,
863 .on_property = on_property,
864 };
865
4afd3348
LP		 866 _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL;
867 _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
0171da06
LP		 868 _cleanup_(member_set_freep) Set *members = NULL;
869 Iterator i;
870 Member *m;
871 const char *xml;
872 int r;
873 unsigned name_width, type_width, signature_width, result_width;
874 Member **sorted = NULL;
4f44c03e 875 unsigned k = 0, j, n_args;
0171da06 876
4f44c03e
LP		 877 n_args = strv_length(argv);
878 if (n_args < 3) {
0171da06
LP		 879 log_error("Requires service and object path argument.");
880 return -EINVAL;
881 }
882
4f44c03e
LP		 883 if (n_args > 4) {
884 log_error("Too many arguments.");
885 return -EINVAL;
886 }
887
0171da06
LP		 888 members = set_new(&member_hash_ops);
889 if (!members)
890 return log_oom();
891
892 r = sd_bus_call_method(bus, argv[1], argv[2], "org.freedesktop.DBus.Introspectable", "Introspect", &error, &reply, "");
893 if (r < 0) {
894 log_error("Failed to introspect object %s of service %s: %s", argv[2], argv[1], bus_error_message(&error, r));
895 return r;
896 }
897
898 r = sd_bus_message_read(reply, "s", &xml);
899 if (r < 0)
900 return bus_log_parse_error(r);
901
1fc55609 902 /* First, get list of all properties */
0171da06
LP		 903 r = parse_xml_introspect(argv[2], xml, &ops, members);
904 if (r < 0)
905 return r;
906
1fc55609
LP		 907 /* Second, find the current values for them */
908 SET_FOREACH(m, members, i) {
909
910 if (!streq(m->type, "property"))
911 continue;
912
913 if (m->value)
914 continue;
915
4f44c03e
LP		 916 if (argv[3] && !streq(argv[3], m->interface))
917 continue;
918
1fc55609
LP		 919 r = sd_bus_call_method(bus, argv[1], argv[2], "org.freedesktop.DBus.Properties", "GetAll", &error, &reply, "s", m->interface);
920 if (r < 0) {
921 log_error("%s", bus_error_message(&error, r));
922 return r;
923 }
924
925 r = sd_bus_message_enter_container(reply, 'a', "{sv}");
926 if (r < 0)
927 return bus_log_parse_error(r);
928
929 for (;;) {
930 Member *z;
931 _cleanup_free_ char *buf = NULL;
932 _cleanup_fclose_ FILE *mf = NULL;
933 size_t sz = 0;
934 const char *name;
935
936 r = sd_bus_message_enter_container(reply, 'e', "sv");
937 if (r < 0)
938 return bus_log_parse_error(r);
939
940 if (r == 0)
941 break;
942
943 r = sd_bus_message_read(reply, "s", &name);
944 if (r < 0)
945 return bus_log_parse_error(r);
946
947 r = sd_bus_message_enter_container(reply, 'v', NULL);
948 if (r < 0)
949 return bus_log_parse_error(r);
950
951 mf = open_memstream(&buf, &sz);
952 if (!mf)
953 return log_oom();
954
955 r = format_cmdline(reply, mf, false);
956 if (r < 0)
957 return bus_log_parse_error(r);
958
959 fclose(mf);
960 mf = NULL;
961
962 z = set_get(members, &((Member) {
963 .type = "property",
964 .interface = m->interface,
965 .name = (char*) name }));
966 if (z) {
967 free(z->value);
968 z->value = buf;
969 buf = NULL;
970 }
971
972 r = sd_bus_message_exit_container(reply);
973 if (r < 0)
974 return bus_log_parse_error(r);
975
976 r = sd_bus_message_exit_container(reply);
977 if (r < 0)
978 return bus_log_parse_error(r);
979 }
980
981 r = sd_bus_message_exit_container(reply);
982 if (r < 0)
983 return bus_log_parse_error(r);
984 }
985
ea4b98e6 986 pager_open(arg_no_pager, false);
0171da06
LP		 987
988 name_width = strlen("NAME");
989 type_width = strlen("TYPE");
990 signature_width = strlen("SIGNATURE");
1fc55609 991 result_width = strlen("RESULT/VALUE");
0171da06
LP		 992
993 sorted = newa(Member*, set_size(members));
994
995 SET_FOREACH(m, members, i) {
4f44c03e
LP		 996
997 if (argv[3] && !streq(argv[3], m->interface))
998 continue;
999
0171da06
LP		 1000 if (m->interface)
1001 name_width = MAX(name_width, strlen(m->interface));
1002 if (m->name)
1003 name_width = MAX(name_width, strlen(m->name) + 1);
1004 if (m->type)
1005 type_width = MAX(type_width, strlen(m->type));
1006 if (m->signature)
1007 signature_width = MAX(signature_width, strlen(m->signature));
1008 if (m->result)
1009 result_width = MAX(result_width, strlen(m->result));
1fc55609
LP		 1010 if (m->value)
1011 result_width = MAX(result_width, strlen(m->value));
0171da06
LP		 1012
1013 sorted[k++] = m;
1014 }
1015
1fc55609
LP		 1016 if (result_width > 40)
1017 result_width = 40;
1018
0171da06
LP		 1019 qsort(sorted, k, sizeof(Member*), member_compare_funcp);
1020
1fc55609
LP		 1021 if (arg_legend) {
1022 printf("%-*s %-*s %-*s %-*s %s\n",
1023 (int) name_width, "NAME",
1024 (int) type_width, "TYPE",
1025 (int) signature_width, "SIGNATURE",
1026 (int) result_width, "RESULT/VALUE",
1027 "FLAGS");
1028 }
0171da06
LP		 1029
1030 for (j = 0; j < k; j++) {
1fc55609
LP		 1031 _cleanup_free_ char *ellipsized = NULL;
1032 const char *rv;
0171da06
LP		 1033 bool is_interface;
1034
1035 m = sorted[j];
1036
4f44c03e
LP		 1037 if (argv[3] && !streq(argv[3], m->interface))
1038 continue;
1039
0171da06
LP		 1040 is_interface = streq(m->type, "interface");
1041
4f44c03e
LP		 1042 if (argv[3] && is_interface)
1043 continue;
1044
1fc55609
LP		 1045 if (m->value) {
1046 ellipsized = ellipsize(m->value, result_width, 100);
1047 if (!ellipsized)
1048 return log_oom();
1049
1050 rv = ellipsized;
1051 } else
1052 rv = strdash(m->result);
1053
0171da06
LP		 1054 printf("%s%s%-*s%s %-*s %-*s %-*s%s%s%s%s%s%s\n",
1055 is_interface ? ansi_highlight() : "",
1056 is_interface ? "" : ".",
1057 - !is_interface + (int) name_width, strdash(streq_ptr(m->type, "interface") ? m->interface : m->name),
1fc464f6 1058 is_interface ? ansi_normal() : "",
0171da06
LP		 1059 (int) type_width, strdash(m->type),
1060 (int) signature_width, strdash(m->signature),
1fc55609 1061 (int) result_width, rv,
0171da06
LP		 1062 (m->flags & SD_BUS_VTABLE_DEPRECATED) ? " deprecated" : (m->flags || m->writable ? "" : " -"),
1063 (m->flags & SD_BUS_VTABLE_METHOD_NO_REPLY) ? " no-reply" : "",
1064 (m->flags & SD_BUS_VTABLE_PROPERTY_CONST) ? " const" : "",
1065 (m->flags & SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE) ? " emits-change" : "",
1066 (m->flags & SD_BUS_VTABLE_PROPERTY_EMITS_INVALIDATION) ? " emits-invalidation" : "",
1067 m->writable ? " writable" : "");
1068 }
1069
1070 return 0;
1071}
1072
1f70b087 1073static int message_dump(sd_bus_message *m, FILE *f) {
d55192ad 1074 return bus_message_dump(m, f, BUS_MESSAGE_DUMP_WITH_HEADER);
1f70b087
LP		 1075}
1076
1077static int message_pcap(sd_bus_message *m, FILE *f) {
1078 return bus_message_pcap_frame(m, arg_snaplen, f);
1079}
1080
1081static int monitor(sd_bus *bus, char *argv[], int (*dump)(sd_bus_message *m, FILE *f)) {
b51f299a 1082 bool added_something = false;
1f849790
LP		 1083 char **i;
1084 int r;
1085
1086 STRV_FOREACH(i, argv+1) {
1087 _cleanup_free_ char *m = NULL;
1088
1089 if (!service_name_is_valid(*i)) {
1090 log_error("Invalid service name '%s'", *i);
1091 return -EINVAL;
1092 }
1093
1094 m = strjoin("sender='", *i, "'", NULL);
1095 if (!m)
1096 return log_oom();
1097
19befb2d 1098 r = sd_bus_add_match(bus, NULL, m, NULL, NULL);
23bbb0de
MS		 1099 if (r < 0)
1100 return log_error_errno(r, "Failed to add match: %m");
b51f299a 1101
f6d1e6cb
LU		 1102 free(m);
1103 m = strjoin("destination='", *i, "'", NULL);
1104 if (!m)
1105 return log_oom();
1106
1107 r = sd_bus_add_match(bus, NULL, m, NULL, NULL);
1108 if (r < 0)
1109 return log_error_errno(r, "Failed to add match: %m");
1110
b51f299a 1111 added_something = true;
1f849790
LP		 1112 }
1113
1114 STRV_FOREACH(i, arg_matches) {
19befb2d 1115 r = sd_bus_add_match(bus, NULL, *i, NULL, NULL);
23bbb0de
MS		 1116 if (r < 0)
1117 return log_error_errno(r, "Failed to add match: %m");
b51f299a
LP		 1118
1119 added_something = true;
1120 }
1121
1122 if (!added_something) {
19befb2d 1123 r = sd_bus_add_match(bus, NULL, "", NULL, NULL);
23bbb0de
MS		 1124 if (r < 0)
1125 return log_error_errno(r, "Failed to add match: %m");
1f849790
LP		 1126 }
1127
92d66625
LP		 1128 log_info("Monitoring bus message stream.");
1129
1f849790 1130 for (;;) {
4afd3348 1131 _cleanup_(sd_bus_message_unrefp) sd_bus_message *m = NULL;
1f849790
LP		 1132
1133 r = sd_bus_process(bus, &m);
23bbb0de
MS		 1134 if (r < 0)
1135 return log_error_errno(r, "Failed to process bus: %m");
1f849790
LP		 1136
1137 if (m) {
1f70b087 1138 dump(m, stdout);
1d44f758 1139 fflush(stdout);
92d66625
LP		 1140
1141 if (sd_bus_message_is_signal(m, "org.freedesktop.DBus.Local", "Disconnected") > 0) {
1142 log_info("Connection terminated, exiting.");
1143 return 0;
1144 }
1145
1f849790
LP		 1146 continue;
1147 }
1148
1149 if (r > 0)
1150 continue;
1151
1152 r = sd_bus_wait(bus, (uint64_t) -1);
23bbb0de
MS		 1153 if (r < 0)
1154 return log_error_errno(r, "Failed to wait for bus: %m");
1f849790 1155 }
95c4fe82 1156}
1f849790 1157
1f70b087
LP		 1158static int capture(sd_bus *bus, char *argv[]) {
1159 int r;
1160
1161 if (isatty(fileno(stdout)) > 0) {
1162 log_error("Refusing to write message data to console, please redirect output to a file.");
1163 return -EINVAL;
1164 }
1165
1166 bus_pcap_header(arg_snaplen, stdout);
1167
1168 r = monitor(bus, argv, message_pcap);
1169 if (r < 0)
1170 return r;
1171
1172 if (ferror(stdout)) {
1173 log_error("Couldn't write capture file.");
1174 return -EIO;
1175 }
1176
1177 return r;
1178}
1179
95c4fe82 1180static int status(sd_bus *bus, char *argv[]) {
4afd3348 1181 _cleanup_(sd_bus_creds_unrefp) sd_bus_creds *creds = NULL;
95c4fe82
LP		 1182 pid_t pid;
1183 int r;
1184
1185 assert(bus);
1186
2e9efd22
LP		 1187 if (strv_length(argv) > 2) {
1188 log_error("Expects no or one argument.");
95c4fe82
LP		 1189 return -EINVAL;
1190 }
1191
2e9efd22
LP		 1192 if (argv[1]) {
1193 r = parse_pid(argv[1], &pid);
1194 if (r < 0)
1195 r = sd_bus_get_name_creds(
1196 bus,
1197 argv[1],
1198 (arg_augment_creds ? SD_BUS_CREDS_AUGMENT : 0) | _SD_BUS_CREDS_ALL,
1199 &creds);
1200 else
1201 r = sd_bus_creds_new_from_pid(
1202 &creds,
1203 pid,
1204 _SD_BUS_CREDS_ALL);
3acc1daf 1205 } else {
5b820358 1206 const char *scope, *address;
5c302692 1207 sd_id128_t bus_id;
3acc1daf 1208
5b820358
LP		 1209 r = sd_bus_get_address(bus, &address);
1210 if (r >= 0)
1fc464f6 1211 printf("BusAddress=%s%s%s\n", ansi_highlight(), address, ansi_normal());
5b820358 1212
3acc1daf
LP		 1213 r = sd_bus_get_scope(bus, &scope);
1214 if (r >= 0)
1fc464f6 1215 printf("BusScope=%s%s%s\n", ansi_highlight(), scope, ansi_normal());
3acc1daf 1216
5c302692
LP		 1217 r = sd_bus_get_bus_id(bus, &bus_id);
1218 if (r >= 0)
1fc464f6 1219 printf("BusID=%s" SD_ID128_FORMAT_STR "%s\n", ansi_highlight(), SD_ID128_FORMAT_VAL(bus_id), ansi_normal());
5c302692 1220
2e9efd22 1221 r = sd_bus_get_owner_creds(
40ed1a45 1222 bus,
40ed1a45
LP		 1223 (arg_augment_creds ? SD_BUS_CREDS_AUGMENT : 0) | _SD_BUS_CREDS_ALL,
1224 &creds);
3acc1daf 1225 }
95c4fe82 1226
23bbb0de
MS		 1227 if (r < 0)
1228 return log_error_errno(r, "Failed to get credentials: %m");
95c4fe82 1229
d0b2babf 1230 bus_creds_dump(creds, NULL, false);
95c4fe82 1231 return 0;
1f849790
LP		 1232}
1233
781fa938
LP		 1234static int message_append_cmdline(sd_bus_message *m, const char *signature, char ***x) {
1235 char **p;
1236 int r;
1237
1238 assert(m);
1239 assert(signature);
1240 assert(x);
1241
1242 p = *x;
1243
1244 for (;;) {
1245 const char *v;
1246 char t;
1247
1248 t = *signature;
1249 v = *p;
1250
1251 if (t == 0)
1252 break;
1253 if (!v) {
1254 log_error("Too few parameters for signature.");
1255 return -EINVAL;
1256 }
1257
1258 signature++;
1259 p++;
1260
1261 switch (t) {
1262
1263 case SD_BUS_TYPE_BOOLEAN:
1264
1265 r = parse_boolean(v);
1266 if (r < 0) {
1267 log_error("Failed to parse as boolean: %s", v);
1268 return r;
1269 }
1270
1271 r = sd_bus_message_append_basic(m, t, &r);
1272 break;
1273
1274 case SD_BUS_TYPE_BYTE: {
1275 uint8_t z;
1276
1277 r = safe_atou8(v, &z);
1278 if (r < 0) {
1279 log_error("Failed to parse as byte (unsigned 8bit integer): %s", v);
1280 return r;
1281 }
1282
1283 r = sd_bus_message_append_basic(m, t, &z);
1284 break;
1285 }
1286
1287 case SD_BUS_TYPE_INT16: {
1288 int16_t z;
1289
1290 r = safe_atoi16(v, &z);
1291 if (r < 0) {
1292 log_error("Failed to parse as signed 16bit integer: %s", v);
1293 return r;
1294 }
1295
1296 r = sd_bus_message_append_basic(m, t, &z);
1297 break;
1298 }
1299
1300 case SD_BUS_TYPE_UINT16: {
1301 uint16_t z;
1302
1303 r = safe_atou16(v, &z);
1304 if (r < 0) {
1305 log_error("Failed to parse as unsigned 16bit integer: %s", v);
1306 return r;
1307 }
1308
1309 r = sd_bus_message_append_basic(m, t, &z);
1310 break;
1311 }
1312
1313 case SD_BUS_TYPE_INT32: {
1314 int32_t z;
1315
1316 r = safe_atoi32(v, &z);
1317 if (r < 0) {
1318 log_error("Failed to parse as signed 32bit integer: %s", v);
1319 return r;
1320 }
1321
1322 r = sd_bus_message_append_basic(m, t, &z);
1323 break;
1324 }
1325
1326 case SD_BUS_TYPE_UINT32: {
1327 uint32_t z;
1328
1329 r = safe_atou32(v, &z);
1330 if (r < 0) {
1331 log_error("Failed to parse as unsigned 32bit integer: %s", v);
1332 return r;
1333 }
1334
1335 r = sd_bus_message_append_basic(m, t, &z);
1336 break;
1337 }
1338
1339 case SD_BUS_TYPE_INT64: {
1340 int64_t z;
1341
1342 r = safe_atoi64(v, &z);
1343 if (r < 0) {
1344 log_error("Failed to parse as signed 64bit integer: %s", v);
1345 return r;
1346 }
1347
1348 r = sd_bus_message_append_basic(m, t, &z);
1349 break;
1350 }
1351
1352 case SD_BUS_TYPE_UINT64: {
1353 uint64_t z;
1354
1355 r = safe_atou64(v, &z);
1356 if (r < 0) {
1357 log_error("Failed to parse as unsigned 64bit integer: %s", v);
1358 return r;
1359 }
1360
1361 r = sd_bus_message_append_basic(m, t, &z);
1362 break;
1363 }
1364
1365
1366 case SD_BUS_TYPE_DOUBLE: {
1367 double z;
1368
1369 r = safe_atod(v, &z);
1370 if (r < 0) {
1371 log_error("Failed to parse as double precision floating point: %s", v);
1372 return r;
1373 }
1374
1375 r = sd_bus_message_append_basic(m, t, &z);
1376 break;
1377 }
1378
1379 case SD_BUS_TYPE_STRING:
1380 case SD_BUS_TYPE_OBJECT_PATH:
1381 case SD_BUS_TYPE_SIGNATURE:
1382
1383 r = sd_bus_message_append_basic(m, t, v);
1384 break;
1385
1386 case SD_BUS_TYPE_ARRAY: {
1387 uint32_t n;
1388 size_t k;
1389
1390 r = safe_atou32(v, &n);
1391 if (r < 0) {
1392 log_error("Failed to parse number of array entries: %s", v);
1393 return r;
1394 }
1395
1396 r = signature_element_length(signature, &k);
1397 if (r < 0) {
1398 log_error("Invalid array signature.");
1399 return r;
1400 }
1401
1402 {
1403 unsigned i;
1404 char s[k + 1];
1405 memcpy(s, signature, k);
1406 s[k] = 0;
1407
1408 r = sd_bus_message_open_container(m, SD_BUS_TYPE_ARRAY, s);
1409 if (r < 0)
1410 return bus_log_create_error(r);
1411
1412 for (i = 0; i < n; i++) {
1413 r = message_append_cmdline(m, s, &p);
1414 if (r < 0)
1415 return r;
1416 }
1417 }
1418
1419 signature += k;
1420
1421 r = sd_bus_message_close_container(m);
1422 break;
1423 }
1424
1425 case SD_BUS_TYPE_VARIANT:
1426 r = sd_bus_message_open_container(m, SD_BUS_TYPE_VARIANT, v);
1427 if (r < 0)
1428 return bus_log_create_error(r);
1429
1430 r = message_append_cmdline(m, v, &p);
1431 if (r < 0)
1432 return r;
1433
1434 r = sd_bus_message_close_container(m);
1435 break;
1436
1437 case SD_BUS_TYPE_STRUCT_BEGIN:
1438 case SD_BUS_TYPE_DICT_ENTRY_BEGIN: {
1439 size_t k;
1440
1441 signature--;
1442 p--;
1443
1444 r = signature_element_length(signature, &k);
1445 if (r < 0) {
1446 log_error("Invalid struct/dict entry signature.");
1447 return r;
1448 }
1449
1450 {
1451 char s[k-1];
1452 memcpy(s, signature + 1, k - 2);
1453 s[k - 2] = 0;
1454
1455 r = sd_bus_message_open_container(m, t == SD_BUS_TYPE_STRUCT_BEGIN ? SD_BUS_TYPE_STRUCT : SD_BUS_TYPE_DICT_ENTRY, s);
1456 if (r < 0)
1457 return bus_log_create_error(r);
1458
1459 r = message_append_cmdline(m, s, &p);
1460 if (r < 0)
1461 return r;
1462 }
1463
1464 signature += k;
1465
1466 r = sd_bus_message_close_container(m);
1467 break;
1468 }
1469
1470 case SD_BUS_TYPE_UNIX_FD:
1471 log_error("UNIX file descriptor not supported as type.");
1472 return -EINVAL;
1473
1474 default:
1475 log_error("Unknown signature type %c.", t);
1476 return -EINVAL;
1477 }
1478
1479 if (r < 0)
1480 return bus_log_create_error(r);
1481 }
1482
1483 *x = p;
1484 return 0;
1485}
1486
1487static int call(sd_bus *bus, char *argv[]) {
4afd3348
LP		 1488 _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
1489 _cleanup_(sd_bus_message_unrefp) sd_bus_message *m = NULL, *reply = NULL;
781fa938
LP		 1490 int r;
1491
1492 assert(bus);
1493
1494 if (strv_length(argv) < 5) {
1495 log_error("Expects at least four arguments.");
1496 return -EINVAL;
1497 }
1498
1499 r = sd_bus_message_new_method_call(bus, &m, argv[1], argv[2], argv[3], argv[4]);
79f34de9
LP		 1500 if (r < 0)
1501 return bus_log_create_error(r);
781fa938 1502
38051578
LP		 1503 r = sd_bus_message_set_expect_reply(m, arg_expect_reply);
1504 if (r < 0)
1505 return bus_log_create_error(r);
1506
1507 r = sd_bus_message_set_auto_start(m, arg_auto_start);
1508 if (r < 0)
1509 return bus_log_create_error(r);
1510
1511 r = sd_bus_message_set_allow_interactive_authorization(m, arg_allow_interactive_authorization);
1512 if (r < 0)
1513 return bus_log_create_error(r);
1514
781fa938
LP		 1515 if (!isempty(argv[5])) {
1516 char **p;
1517
1518 p = argv+6;
1519
1520 r = message_append_cmdline(m, argv[5], &p);
1521 if (r < 0)
1522 return r;
1523
1524 if (*p) {
1525 log_error("Too many parameters for signature.");
1526 return -EINVAL;
1527 }
1528 }
1529
38051578
LP		 1530 if (!arg_expect_reply) {
1531 r = sd_bus_send(bus, m, NULL);
1532 if (r < 0) {
1533 log_error("Failed to send message.");
1534 return r;
1535 }
1536
1537 return 0;
1538 }
1539
a44b1081 1540 r = sd_bus_call(bus, m, arg_timeout, &error, &reply);
781fa938
LP		 1541 if (r < 0) {
1542 log_error("%s", bus_error_message(&error, r));
1543 return r;
1544 }
1545
1546 r = sd_bus_message_is_empty(reply);
1547 if (r < 0)
1548 return bus_log_parse_error(r);
1fc55609 1549
781fa938 1550 if (r == 0 && !arg_quiet) {
1fc55609
LP		 1551
1552 if (arg_verbose) {
ea4b98e6 1553 pager_open(arg_no_pager, false);
1fc55609
LP		 1554
1555 r = bus_message_dump(reply, stdout, 0);
1556 if (r < 0)
1557 return r;
1558 } else {
1559
1560 fputs(sd_bus_message_get_signature(reply, true), stdout);
1561 fputc(' ', stdout);
1562
1563 r = format_cmdline(reply, stdout, false);
1564 if (r < 0)
1565 return bus_log_parse_error(r);
1566
1567 fputc('\n', stdout);
1568 }
d55192ad
LP		 1569 }
1570
1571 return 0;
1572}
1573
1574static int get_property(sd_bus *bus, char *argv[]) {
4afd3348 1575 _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
d55192ad 1576 unsigned n;
1fc55609 1577 char **i;
d55192ad
LP		 1578 int r;
1579
1580 assert(bus);
1581
1582 n = strv_length(argv);
1fc55609
LP		 1583 if (n < 5) {
1584 log_error("Expects at least four arguments.");
d55192ad
LP		 1585 return -EINVAL;
1586 }
1587
1fc55609 1588 STRV_FOREACH(i, argv + 4) {
4afd3348 1589 _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL;
1fc55609
LP		 1590 const char *contents = NULL;
1591 char type;
d55192ad 1592
1fc55609 1593 r = sd_bus_call_method(bus, argv[1], argv[2], "org.freedesktop.DBus.Properties", "Get", &error, &reply, "ss", argv[3], *i);
d55192ad
LP		 1594 if (r < 0) {
1595 log_error("%s", bus_error_message(&error, r));
1596 return r;
1597 }
1598
1fc55609 1599 r = sd_bus_message_peek_type(reply, &type, &contents);
d55192ad
LP		 1600 if (r < 0)
1601 return bus_log_parse_error(r);
1602
1fc55609
LP		 1603 r = sd_bus_message_enter_container(reply, 'v', contents);
1604 if (r < 0)
1605 return bus_log_parse_error(r);
d55192ad 1606
1fc55609 1607 if (arg_verbose) {
ea4b98e6 1608 pager_open(arg_no_pager, false);
d55192ad 1609
1fc55609 1610 r = bus_message_dump(reply, stdout, BUS_MESSAGE_DUMP_SUBTREE_ONLY);
d55192ad 1611 if (r < 0)
1fc55609
LP		 1612 return r;
1613 } else {
1614 fputs(contents, stdout);
1615 fputc(' ', stdout);
d55192ad 1616
1fc55609 1617 r = format_cmdline(reply, stdout, false);
d55192ad
LP		 1618 if (r < 0)
1619 return bus_log_parse_error(r);
1620
1fc55609 1621 fputc('\n', stdout);
d55192ad
LP		 1622 }
1623
1624 r = sd_bus_message_exit_container(reply);
1625 if (r < 0)
1626 return bus_log_parse_error(r);
1fc55609 1627 }
d55192ad 1628
1fc55609
LP		 1629 return 0;
1630}
d55192ad 1631
1fc55609 1632static int set_property(sd_bus *bus, char *argv[]) {
4afd3348
LP		 1633 _cleanup_(sd_bus_message_unrefp) sd_bus_message *m = NULL;
1634 _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
1fc55609
LP		 1635 unsigned n;
1636 char **p;
1637 int r;
d55192ad 1638
1fc55609 1639 assert(bus);
d55192ad 1640
1fc55609
LP		 1641 n = strv_length(argv);
1642 if (n < 6) {
1643 log_error("Expects at least five arguments.");
1644 return -EINVAL;
1645 }
d55192ad 1646
1fc55609
LP		 1647 r = sd_bus_message_new_method_call(bus, &m, argv[1], argv[2], "org.freedesktop.DBus.Properties", "Set");
1648 if (r < 0)
1649 return bus_log_create_error(r);
d55192ad 1650
1fc55609
LP		 1651 r = sd_bus_message_append(m, "ss", argv[3], argv[4]);
1652 if (r < 0)
1653 return bus_log_create_error(r);
d55192ad 1654
1fc55609
LP		 1655 r = sd_bus_message_open_container(m, 'v', argv[5]);
1656 if (r < 0)
1657 return bus_log_create_error(r);
1658
1659 p = argv+6;
1660 r = message_append_cmdline(m, argv[5], &p);
1661 if (r < 0)
1662 return r;
1663
1664 r = sd_bus_message_close_container(m);
1665 if (r < 0)
1666 return bus_log_create_error(r);
1667
1668 if (*p) {
1669 log_error("Too many parameters for signature.");
1670 return -EINVAL;
1671 }
1672
a44b1081 1673 r = sd_bus_call(bus, m, arg_timeout, &error, NULL);
1fc55609
LP		 1674 if (r < 0) {
1675 log_error("%s", bus_error_message(&error, r));
1676 return r;
781fa938
LP		 1677 }
1678
1679 return 0;
1680}
1681
1f849790 1682static int help(void) {
1f849790
LP		 1683 printf("%s [OPTIONS...] {COMMAND} ...\n\n"
1684 "Introspect the bus.\n\n"
d75edbd6
LP		 1685 " -h --help Show this help\n"
1686 " --version Show package version\n"
a86a47ce 1687 " --no-pager Do not pipe output into a pager\n"
17d47d8d 1688 " --no-legend Do not show the headers and footers\n"
d75edbd6
LP		 1689 " --system Connect to system bus\n"
1690 " --user Connect to user bus\n"
1691 " -H --host=[USER@]HOST Operate on remote host\n"
1692 " -M --machine=CONTAINER Operate on local container\n"
1693 " --address=ADDRESS Connect to bus specified by address\n"
56e61788
LP		 1694 " --show-machine Show machine ID column in list\n"
1695 " --unique Only show unique names\n"
1696 " --acquired Only show acquired names\n"
1697 " --activatable Only show activatable names\n"
d9130355 1698 " --match=MATCH Only show matching messages\n"
d28ebe27 1699 " --size=SIZE Maximum length of captured packet\n"
781fa938 1700 " --list Don't show tree, but simple object path list\n"
1fc55609 1701 " --quiet Don't show method call reply\n"
38051578
LP		 1702 " --verbose Show result values in long format\n"
1703 " --expect-reply=BOOL Expect a method call reply\n"
1704 " --auto-start=BOOL Auto-start destination service\n"
1705 " --allow-interactive-authorization=BOOL\n"
a44b1081 1706 " Allow interactive authorization for operation\n"
40ed1a45
LP		 1707 " --timeout=SECS Maximum time to wait for method call completion\n"
1708 " --augment-creds=BOOL Extend credential data with data read from /proc/$PID\n\n"
1f849790 1709 "Commands:\n"
d75edbd6 1710 " list List bus names\n"
2e9efd22 1711 " status [SERVICE] Show bus service, process or bus owner credentials\n"
d94fe1f1 1712 " monitor [SERVICE...] Show bus traffic\n"
1f70b087 1713 " capture [SERVICE...] Capture bus traffic as pcap\n"
0171da06 1714 " tree [SERVICE...] Show object tree of service\n"
4f44c03e 1715 " introspect SERVICE OBJECT [INTERFACE]\n"
0171da06 1716 " call SERVICE OBJECT INTERFACE METHOD [SIGNATURE [ARGUMENT...]]\n"
781fa938 1717 " Call a method\n"
1fc55609 1718 " get-property SERVICE OBJECT INTERFACE PROPERTY...\n"
d55192ad 1719 " Get property value\n"
1fc55609
LP		 1720 " set-property SERVICE OBJECT INTERFACE PROPERTY SIGNATURE ARGUMENT...\n"
1721 " Set property value\n"
601185b4
ZJS		 1722 " help Show this help\n"
1723 , program_invocation_short_name);
1f849790
LP		 1724
1725 return 0;
1726}
1727
1728static int parse_argv(int argc, char *argv[]) {
1729
1730 enum {
1731 ARG_VERSION = 0x100,
1732 ARG_NO_PAGER,
17d47d8d 1733 ARG_NO_LEGEND,
1f849790
LP		 1734 ARG_SYSTEM,
1735 ARG_USER,
1736 ARG_ADDRESS,
1737 ARG_MATCH,
56e61788
LP		 1738 ARG_SHOW_MACHINE,
1739 ARG_UNIQUE,
1740 ARG_ACQUIRED,
1f70b087
LP		 1741 ARG_ACTIVATABLE,
1742 ARG_SIZE,
d9130355 1743 ARG_LIST,
1fc55609 1744 ARG_VERBOSE,
38051578
LP		 1745 ARG_EXPECT_REPLY,
1746 ARG_AUTO_START,
1747 ARG_ALLOW_INTERACTIVE_AUTHORIZATION,
a44b1081 1748 ARG_TIMEOUT,
40ed1a45 1749 ARG_AUGMENT_CREDS,
1f849790
LP		 1750 };
1751
1752 static const struct option options[] = {
56e61788
LP		 1753 { "help", no_argument, NULL, 'h' },
1754 { "version", no_argument, NULL, ARG_VERSION },
1755 { "no-pager", no_argument, NULL, ARG_NO_PAGER },
17d47d8d 1756 { "no-legend", no_argument, NULL, ARG_NO_LEGEND },
56e61788
LP		 1757 { "system", no_argument, NULL, ARG_SYSTEM },
1758 { "user", no_argument, NULL, ARG_USER },
1759 { "address", required_argument, NULL, ARG_ADDRESS },
1760 { "show-machine", no_argument, NULL, ARG_SHOW_MACHINE },
1761 { "unique", no_argument, NULL, ARG_UNIQUE },
1762 { "acquired", no_argument, NULL, ARG_ACQUIRED },
1763 { "activatable", no_argument, NULL, ARG_ACTIVATABLE },
1764 { "match", required_argument, NULL, ARG_MATCH },
1765 { "host", required_argument, NULL, 'H' },
1766 { "machine", required_argument, NULL, 'M' },
1f70b087 1767 { "size", required_argument, NULL, ARG_SIZE },
d9130355 1768 { "list", no_argument, NULL, ARG_LIST },
781fa938 1769 { "quiet", no_argument, NULL, 'q' },
1fc55609 1770 { "verbose", no_argument, NULL, ARG_VERBOSE },
38051578
LP		 1771 { "expect-reply", required_argument, NULL, ARG_EXPECT_REPLY },
1772 { "auto-start", required_argument, NULL, ARG_AUTO_START },
1773 { "allow-interactive-authorization", required_argument, NULL, ARG_ALLOW_INTERACTIVE_AUTHORIZATION },
a44b1081 1774 { "timeout", required_argument, NULL, ARG_TIMEOUT },
40ed1a45 1775 { "augment-creds",required_argument, NULL, ARG_AUGMENT_CREDS},
eb9da376 1776 {},
1f849790
LP		 1777 };
1778
1f70b087 1779 int c, r;
1f849790
LP		 1780
1781 assert(argc >= 0);
1782 assert(argv);
1783
781fa938 1784 while ((c = getopt_long(argc, argv, "hH:M:q", options, NULL)) >= 0)
1f849790
LP		 1785
1786 switch (c) {
1787
1788 case 'h':
1789 return help();
1790
1791 case ARG_VERSION:
3f6fd1ba 1792 return version();
1f849790
LP		 1793
1794 case ARG_NO_PAGER:
1795 arg_no_pager = true;
1796 break;
1797
17d47d8d
TA		 1798 case ARG_NO_LEGEND:
1799 arg_legend = false;
1800 break;
1801
1f849790
LP		 1802 case ARG_USER:
1803 arg_user = true;
1804 break;
1805
1806 case ARG_SYSTEM:
1807 arg_user = false;
1808 break;
1809
1810 case ARG_ADDRESS:
1811 arg_address = optarg;
1812 break;
1813
56e61788
LP		 1814 case ARG_SHOW_MACHINE:
1815 arg_show_machine = true;
1816 break;
1817
1818 case ARG_UNIQUE:
1819 arg_unique = true;
1f849790
LP		 1820 break;
1821
56e61788
LP		 1822 case ARG_ACQUIRED:
1823 arg_acquired = true;
1824 break;
1825
1826 case ARG_ACTIVATABLE:
1827 arg_activatable = true;
a4297f08
LP		 1828 break;
1829
1f849790
LP		 1830 case ARG_MATCH:
1831 if (strv_extend(&arg_matches, optarg) < 0)
1832 return log_oom();
1833 break;
1834
1f70b087 1835 case ARG_SIZE: {
59f448cf 1836 uint64_t sz;
1f70b087 1837
59f448cf 1838 r = parse_size(optarg, 1024, &sz);
1f70b087
LP		 1839 if (r < 0) {
1840 log_error("Failed to parse size: %s", optarg);
1841 return r;
1842 }
1843
59f448cf 1844 if ((uint64_t) (size_t) sz != sz) {
1f70b087
LP		 1845 log_error("Size out of range.");
1846 return -E2BIG;
1847 }
1848
59f448cf 1849 arg_snaplen = (size_t) sz;
1f70b087
LP		 1850 break;
1851 }
1852
d9130355
LP		 1853 case ARG_LIST:
1854 arg_list = true;
1855 break;
1856
d75edbd6
LP		 1857 case 'H':
1858 arg_transport = BUS_TRANSPORT_REMOTE;
1859 arg_host = optarg;
1860 break;
1861
1862 case 'M':
de33fc62 1863 arg_transport = BUS_TRANSPORT_MACHINE;
d75edbd6
LP		 1864 arg_host = optarg;
1865 break;
1866
781fa938
LP		 1867 case 'q':
1868 arg_quiet = true;
1869 break;
1870
1fc55609
LP		 1871 case ARG_VERBOSE:
1872 arg_verbose = true;
1873 break;
1874
38051578
LP		 1875 case ARG_EXPECT_REPLY:
1876 r = parse_boolean(optarg);
1877 if (r < 0) {
1878 log_error("Failed to parse --expect-reply= parameter.");
1879 return r;
1880 }
1881
1882 arg_expect_reply = !!r;
1883 break;
1884
1885
1886 case ARG_AUTO_START:
1887 r = parse_boolean(optarg);
1888 if (r < 0) {
1889 log_error("Failed to parse --auto-start= parameter.");
1890 return r;
1891 }
1892
1893 arg_auto_start = !!r;
1894 break;
1895
1896
1897 case ARG_ALLOW_INTERACTIVE_AUTHORIZATION:
1898 r = parse_boolean(optarg);
1899 if (r < 0) {
1900 log_error("Failed to parse --allow-interactive-authorization= parameter.");
1901 return r;
1902 }
1903
1904 arg_allow_interactive_authorization = !!r;
1905 break;
1906
a44b1081
LP		 1907 case ARG_TIMEOUT:
1908 r = parse_sec(optarg, &arg_timeout);
1909 if (r < 0) {
1910 log_error("Failed to parse --timeout= parameter.");
1911 return r;
1912 }
1913
1914 break;
1915
40ed1a45
LP		 1916 case ARG_AUGMENT_CREDS:
1917 r = parse_boolean(optarg);
1918 if (r < 0) {
1919 log_error("Failed to parse --augment-creds= parameter.");
1920 return r;
1921 }
1922
1923 arg_augment_creds = !!r;
1924 break;
1925
1f849790
LP		 1926 case '?':
1927 return -EINVAL;
1928
1929 default:
eb9da376 1930 assert_not_reached("Unhandled option");
1f849790 1931 }
1f849790
LP		 1932
1933 return 1;
1934}
1935
1936static int busctl_main(sd_bus *bus, int argc, char *argv[]) {
1937 assert(bus);
1938
1939 if (optind >= argc ||
1940 streq(argv[optind], "list"))
1941 return list_bus_names(bus, argv + optind);
1942
1943 if (streq(argv[optind], "monitor"))
1f70b087
LP		 1944 return monitor(bus, argv + optind, message_dump);
1945
1946 if (streq(argv[optind], "capture"))
1947 return capture(bus, argv + optind);
1f849790 1948
95c4fe82
LP		 1949 if (streq(argv[optind], "status"))
1950 return status(bus, argv + optind);
d9130355
LP		 1951
1952 if (streq(argv[optind], "tree"))
1953 return tree(bus, argv + optind);
781fa938 1954
0171da06
LP		 1955 if (streq(argv[optind], "introspect"))
1956 return introspect(bus, argv + optind);
1957
781fa938
LP		 1958 if (streq(argv[optind], "call"))
1959 return call(bus, argv + optind);
d55192ad
LP		 1960
1961 if (streq(argv[optind], "get-property"))
1962 return get_property(bus, argv + optind);
95c4fe82 1963
1fc55609
LP		 1964 if (streq(argv[optind], "set-property"))
1965 return set_property(bus, argv + optind);
1966
1f849790
LP		 1967 if (streq(argv[optind], "help"))
1968 return help();
1969
1970 log_error("Unknown command '%s'", argv[optind]);
1971 return -EINVAL;
1972}
1973
1974int main(int argc, char *argv[]) {
4afd3348 1975 _cleanup_(sd_bus_flush_close_unrefp) sd_bus *bus = NULL;
1f849790
LP		 1976 int r;
1977
1978 log_parse_environment();
1979 log_open();
1980
1981 r = parse_argv(argc, argv);
1982 if (r <= 0)
1983 goto finish;
1984
09365592
LP		 1985 r = sd_bus_new(&bus);
1986 if (r < 0) {
da927ba9 1987 log_error_errno(r, "Failed to allocate bus: %m");
09365592
LP		 1988 goto finish;
1989 }
1990
1f70b087
LP		 1991 if (streq_ptr(argv[optind], "monitor") ||
1992 streq_ptr(argv[optind], "capture")) {
09365592
LP		 1993
1994 r = sd_bus_set_monitor(bus, true);
1f849790 1995 if (r < 0) {
da927ba9 1996 log_error_errno(r, "Failed to set monitor mode: %m");
1f849790
LP		 1997 goto finish;
1998 }
d0ce7734 1999
b5dae4c7 2000 r = sd_bus_negotiate_creds(bus, true, _SD_BUS_CREDS_ALL);
d0ce7734 2001 if (r < 0) {
da927ba9 2002 log_error_errno(r, "Failed to enable credentials: %m");
d0ce7734
LP		 2003 goto finish;
2004 }
2005
2006 r = sd_bus_negotiate_timestamp(bus, true);
2007 if (r < 0) {
da927ba9 2008 log_error_errno(r, "Failed to enable timestamps: %m");
d0ce7734
LP		 2009 goto finish;
2010 }
2011
2012 r = sd_bus_negotiate_fds(bus, true);
2013 if (r < 0) {
da927ba9 2014 log_error_errno(r, "Failed to enable fds: %m");
d0ce7734
LP		 2015 goto finish;
2016 }
09365592 2017 }
1f849790 2018
8d87d4a9
DH		 2019 r = sd_bus_set_bus_client(bus, true);
2020 if (r < 0) {
2021 log_error_errno(r, "Failed to set bus client: %m");
2022 goto finish;
2023 }
2024
09365592 2025 if (arg_address)
1f849790 2026 r = sd_bus_set_address(bus, arg_address);
09365592
LP		 2027 else {
2028 switch (arg_transport) {
1f849790 2029
09365592 2030 case BUS_TRANSPORT_LOCAL:
3acc1daf
LP		 2031 if (arg_user) {
2032 bus->is_user = true;
09365592 2033 r = bus_set_address_user(bus);
3acc1daf
LP		 2034 } else {
2035 bus->is_system = true;
09365592 2036 r = bus_set_address_system(bus);
3acc1daf 2037 }
09365592
LP		 2038 break;
2039
2040 case BUS_TRANSPORT_REMOTE:
2041 r = bus_set_address_system_remote(bus, arg_host);
2042 break;
2043
de33fc62
LP		 2044 case BUS_TRANSPORT_MACHINE:
2045 r = bus_set_address_system_machine(bus, arg_host);
09365592
LP		 2046 break;
2047
2048 default:
2049 assert_not_reached("Hmm, unknown transport type.");
1f849790 2050 }
09365592
LP		 2051 }
2052 if (r < 0) {
da927ba9 2053 log_error_errno(r, "Failed to set address: %m");
09365592
LP		 2054 goto finish;
2055 }
1f849790 2056
09365592 2057 r = sd_bus_start(bus);
1f849790 2058 if (r < 0) {
da927ba9 2059 log_error_errno(r, "Failed to connect to bus: %m");
1f849790
LP		 2060 goto finish;
2061 }
2062
2063 r = busctl_main(bus, argc, argv);
2064
2065finish:
2066 pager_close();
d75edbd6 2067
1f849790 2068 strv_free(arg_matches);
de1c301e 2069
de1c301e
LP		 2070 return r < 0 ? EXIT_FAILURE : EXIT_SUCCESS;
2071}
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