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resolved: extend ResolveHostname() bus call so that it can parse IP addresses
[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
LP		 64
65static void pager_open_if_enabled(void) {
66
67 /* Cache result before we open the pager */
68 if (arg_no_pager)
69 return;
70
71 pager_open(false);
72}
73
1d58a1fe
LP		 74#define NAME_IS_ACQUIRED INT_TO_PTR(1)
75#define NAME_IS_ACTIVATABLE INT_TO_PTR(2)
76
1f849790 77static int list_bus_names(sd_bus *bus, char **argv) {
71f2ab46 78 _cleanup_strv_free_ char **acquired = NULL, **activatable = NULL;
5e2f14e6
LP		 79 _cleanup_free_ char **merged = NULL;
80 _cleanup_hashmap_free_ Hashmap *names = NULL;
de1c301e
LP		 81 char **i;
82 int r;
89ffcd2a 83 size_t max_i = 0;
5e2f14e6
LP		 84 unsigned n = 0;
85 void *v;
86 char *k;
87 Iterator iterator;
de1c301e 88
1f849790 89 assert(bus);
de1c301e 90
d9130355
LP		 91 if (!arg_unique && !arg_acquired && !arg_activatable)
92 arg_unique = arg_acquired = arg_activatable = true;
93
56e61788 94 r = sd_bus_list_names(bus, (arg_acquired || arg_unique) ? &acquired : NULL, arg_activatable ? &activatable : NULL);
23bbb0de
MS		 95 if (r < 0)
96 return log_error_errno(r, "Failed to list names: %m");
de1c301e 97
1f849790
LP		 98 pager_open_if_enabled();
99
d5099efc 100 names = hashmap_new(&string_hash_ops);
5e2f14e6
LP		 101 if (!names)
102 return log_oom();
89ffcd2a 103
5e2f14e6 104 STRV_FOREACH(i, acquired) {
71f2ab46
LP		 105 max_i = MAX(max_i, strlen(*i));
106
1d58a1fe 107 r = hashmap_put(names, *i, NAME_IS_ACQUIRED);
23bbb0de
MS		 108 if (r < 0)
109 return log_error_errno(r, "Failed to add to hashmap: %m");
5e2f14e6
LP		 110 }
111
112 STRV_FOREACH(i, activatable) {
89ffcd2a
LP		 113 max_i = MAX(max_i, strlen(*i));
114
1d58a1fe 115 r = hashmap_put(names, *i, NAME_IS_ACTIVATABLE);
23bbb0de
MS		 116 if (r < 0 && r != -EEXIST)
117 return log_error_errno(r, "Failed to add to hashmap: %m");
5e2f14e6
LP		 118 }
119
120 merged = new(char*, hashmap_size(names) + 1);
121 HASHMAP_FOREACH_KEY(v, k, names, iterator)
122 merged[n++] = k;
123
124 merged[n] = NULL;
125 strv_sort(merged);
126
17d47d8d
TA		 127 if (arg_legend) {
128 printf("%-*s %*s %-*s %-*s %-*s %-*s %-*s %-*s",
455971c1 129 (int) max_i, "NAME", 10, "PID", 15, "PROCESS", 16, "USER", 13, "CONNECTION", 25, "UNIT", 10, "SESSION", 19, "DESCRIPTION");
89ffcd2a 130
17d47d8d
TA		 131 if (arg_show_machine)
132 puts(" MACHINE");
133 else
134 putchar('\n');
135 }
a4297f08 136
5e2f14e6 137 STRV_FOREACH(i, merged) {
4afd3348 138 _cleanup_(sd_bus_creds_unrefp) sd_bus_creds *creds = NULL;
5e2f14e6 139 sd_id128_t mid;
71f2ab46 140
1d58a1fe 141 if (hashmap_get(names, *i) == NAME_IS_ACTIVATABLE) {
5e2f14e6 142 /* Activatable */
71f2ab46 143
5e2f14e6 144 printf("%-*s", (int) max_i, *i);
56e61788
LP		 145 printf(" - - - (activatable) - - ");
146 if (arg_show_machine)
5e2f14e6 147 puts(" -");
56e61788
LP		 148 else
149 putchar('\n');
71f2ab46
LP		 150 continue;
151
5e2f14e6 152 }
de1c301e 153
56e61788
LP		 154 if (!arg_unique && (*i)[0] == ':')
155 continue;
156
157 if (!arg_acquired && (*i)[0] != ':')
1f849790 158 continue;
89ffcd2a
LP		 159
160 printf("%-*s", (int) max_i, *i);
de1c301e 161
40ed1a45
LP		 162 r = sd_bus_get_name_creds(
163 bus, *i,
164 (arg_augment_creds ? SD_BUS_CREDS_AUGMENT : 0) |
05bae4a6 165 SD_BUS_CREDS_EUID|SD_BUS_CREDS_PID|SD_BUS_CREDS_COMM|
40ed1a45
LP		 166 SD_BUS_CREDS_UNIQUE_NAME|SD_BUS_CREDS_UNIT|SD_BUS_CREDS_SESSION|
167 SD_BUS_CREDS_DESCRIPTION, &creds);
89ffcd2a 168 if (r >= 0) {
14008e4e 169 const char *unique, *session, *unit, *cn;
5b12334d
LP		 170 pid_t pid;
171 uid_t uid;
de1c301e 172
5b12334d
LP		 173 r = sd_bus_creds_get_pid(creds, &pid);
174 if (r >= 0) {
175 const char *comm = NULL;
de1c301e 176
5b12334d 177 sd_bus_creds_get_comm(creds, &comm);
89ffcd2a 178
5b12334d
LP		 179 printf(" %10lu %-15s", (unsigned long) pid, strna(comm));
180 } else
a4297f08 181 fputs(" - - ", stdout);
89ffcd2a 182
05bae4a6 183 r = sd_bus_creds_get_euid(creds, &uid);
5b12334d
LP		 184 if (r >= 0) {
185 _cleanup_free_ char *u = NULL;
89ffcd2a 186
5b12334d
LP		 187 u = uid_to_name(uid);
188 if (!u)
189 return log_oom();
89ffcd2a 190
5b12334d
LP		 191 if (strlen(u) > 16)
192 u[16] = 0;
193
194 printf(" %-16s", u);
195 } else
a4297f08 196 fputs(" - ", stdout);
89ffcd2a 197
49b832c5
LP		 198 r = sd_bus_creds_get_unique_name(creds, &unique);
199 if (r >= 0)
56e61788
LP		 200 printf(" %-13s", unique);
201 else
202 fputs(" - ", stdout);
203
204 r = sd_bus_creds_get_unit(creds, &unit);
205 if (r >= 0) {
206 _cleanup_free_ char *e;
207
208 e = ellipsize(unit, 25, 100);
209 if (!e)
210 return log_oom();
211
212 printf(" %-25s", e);
213 } else
214 fputs(" - ", stdout);
215
216 r = sd_bus_creds_get_session(creds, &session);
217 if (r >= 0)
218 printf(" %-10s", session);
a4297f08 219 else
56e61788 220 fputs(" - ", stdout);
7b0b392f 221
455971c1 222 r = sd_bus_creds_get_description(creds, &cn);
14008e4e
LP		 223 if (r >= 0)
224 printf(" %-19s", cn);
225 else
226 fputs(" - ", stdout);
227
7b0b392f 228 } else
14008e4e 229 printf(" - - - - - - - ");
a4297f08 230
56e61788 231 if (arg_show_machine) {
056f95d0 232 r = sd_bus_get_name_machine_id(bus, *i, &mid);
a4297f08
LP		 233 if (r >= 0) {
234 char m[SD_ID128_STRING_MAX];
235 printf(" %s\n", sd_id128_to_string(mid, m));
236 } else
237 puts(" -");
56e61788
LP		 238 } else
239 putchar('\n');
de1c301e
LP		 240 }
241
1f849790
LP		 242 return 0;
243}
244
d9130355
LP		 245static void print_subtree(const char *prefix, const char *path, char **l) {
246 const char *vertical, *space;
247 char **n;
248
249 /* We assume the list is sorted. Let's first skip over the
250 * entry we are looking at. */
251 for (;;) {
252 if (!*l)
253 return;
254
255 if (!streq(*l, path))
256 break;
257
258 l++;
259 }
260
63c372cb
LP		 261 vertical = strjoina(prefix, draw_special_char(DRAW_TREE_VERTICAL));
262 space = strjoina(prefix, draw_special_char(DRAW_TREE_SPACE));
d9130355
LP		 263
264 for (;;) {
265 bool has_more = false;
266
267 if (!*l || !path_startswith(*l, path))
268 break;
269
270 n = l + 1;
271 for (;;) {
272 if (!*n || !path_startswith(*n, path))
273 break;
274
275 if (!path_startswith(*n, *l)) {
276 has_more = true;
277 break;
278 }
279
280 n++;
281 }
282
283 printf("%s%s%s\n", prefix, draw_special_char(has_more ? DRAW_TREE_BRANCH : DRAW_TREE_RIGHT), *l);
284
285 print_subtree(has_more ? vertical : space, *l, l);
286 l = n;
287 }
288}
289
290static void print_tree(const char *prefix, char **l) {
291
292 pager_open_if_enabled();
293
294 prefix = strempty(prefix);
295
296 if (arg_list) {
297 char **i;
298
299 STRV_FOREACH(i, l)
300 printf("%s%s\n", prefix, *i);
301 return;
302 }
303
56c8b52d
LP		 304 if (strv_isempty(l)) {
305 printf("No objects discovered.\n");
306 return;
307 }
308
309 if (streq(l[0], "/") && !l[1]) {
310 printf("Only root object discovered.\n");
311 return;
312 }
d9130355
LP		 313
314 print_subtree(prefix, "/", l);
315}
316
a1ad3767
LP		 317static int on_path(const char *path, void *userdata) {
318 Set *paths = userdata;
d9130355
LP		 319 int r;
320
a1ad3767 321 assert(paths);
d9130355 322
a1ad3767
LP		 323 r = set_put_strdup(paths, path);
324 if (r < 0)
325 return log_oom();
d9130355 326
a1ad3767 327 return 0;
d9130355
LP		 328}
329
73fc23c0 330static int find_nodes(sd_bus *bus, const char *service, const char *path, Set *paths, bool many) {
0171da06 331 static const XMLIntrospectOps ops = {
a1ad3767
LP		 332 .on_path = on_path,
333 };
334
4afd3348
LP		 335 _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL;
336 _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
a1ad3767 337 const char *xml;
d9130355
LP		 338 int r;
339
340 r = sd_bus_call_method(bus, service, path, "org.freedesktop.DBus.Introspectable", "Introspect", &error, &reply, "");
341 if (r < 0) {
73fc23c0
LP		 342 if (many)
343 printf("Failed to introspect object %s of service %s: %s\n", path, service, bus_error_message(&error, r));
344 else
345 log_error("Failed to introspect object %s of service %s: %s", path, service, bus_error_message(&error, r));
d9130355
LP		 346 return r;
347 }
348
349 r = sd_bus_message_read(reply, "s", &xml);
350 if (r < 0)
351 return bus_log_parse_error(r);
352
a1ad3767 353 return parse_xml_introspect(path, xml, &ops, paths);
d9130355
LP		 354}
355
73fc23c0 356static int tree_one(sd_bus *bus, const char *service, const char *prefix, bool many) {
d9130355
LP		 357 _cleanup_set_free_free_ Set *paths = NULL, *done = NULL, *failed = NULL;
358 _cleanup_free_ char **l = NULL;
359 char *m;
360 int r;
361
362 paths = set_new(&string_hash_ops);
363 if (!paths)
364 return log_oom();
365
366 done = set_new(&string_hash_ops);
367 if (!done)
368 return log_oom();
369
370 failed = set_new(&string_hash_ops);
371 if (!failed)
372 return log_oom();
373
374 m = strdup("/");
375 if (!m)
376 return log_oom();
377
378 r = set_put(paths, m);
379 if (r < 0) {
380 free(m);
381 return log_oom();
382 }
383
384 for (;;) {
385 _cleanup_free_ char *p = NULL;
386 int q;
387
388 p = set_steal_first(paths);
389 if (!p)
390 break;
391
392 if (set_contains(done, p) ||
393 set_contains(failed, p))
394 continue;
395
73fc23c0 396 q = find_nodes(bus, service, p, paths, many);
d9130355
LP		 397 if (q < 0) {
398 if (r >= 0)
399 r = q;
400
401 q = set_put(failed, p);
402 } else
403 q = set_put(done, p);
404
405 if (q < 0)
406 return log_oom();
407
408 assert(q != 0);
409 p = NULL;
410 }
411
73fc23c0
LP		 412 pager_open_if_enabled();
413
d9130355
LP		 414 l = set_get_strv(done);
415 if (!l)
416 return log_oom();
417
418 strv_sort(l);
419 print_tree(prefix, l);
420
421 fflush(stdout);
422
423 return r;
424}
425
426static int tree(sd_bus *bus, char **argv) {
427 char **i;
428 int r = 0;
429
430 if (!arg_unique && !arg_acquired)
431 arg_acquired = true;
432
433 if (strv_length(argv) <= 1) {
434 _cleanup_strv_free_ char **names = NULL;
56c8b52d 435 bool not_first = false;
d9130355
LP		 436
437 r = sd_bus_list_names(bus, &names, NULL);
23bbb0de
MS		 438 if (r < 0)
439 return log_error_errno(r, "Failed to get name list: %m");
d9130355
LP		 440
441 pager_open_if_enabled();
442
443 STRV_FOREACH(i, names) {
444 int q;
445
446 if (!arg_unique && (*i)[0] == ':')
447 continue;
448
449 if (!arg_acquired && (*i)[0] == ':')
450 continue;
451
452 if (not_first)
453 printf("\n");
454
1fc464f6 455 printf("Service %s%s%s:\n", ansi_highlight(), *i, ansi_normal());
d9130355 456
73fc23c0 457 q = tree_one(bus, *i, NULL, true);
d9130355
LP		 458 if (q < 0 && r >= 0)
459 r = q;
460
461 not_first = true;
462 }
463 } else {
d9130355
LP		 464 STRV_FOREACH(i, argv+1) {
465 int q;
466
467 if (i > argv+1)
468 printf("\n");
469
73fc23c0
LP		 470 if (argv[2]) {
471 pager_open_if_enabled();
1fc464f6 472 printf("Service %s%s%s:\n", ansi_highlight(), *i, ansi_normal());
73fc23c0 473 }
d9130355 474
73fc23c0 475 q = tree_one(bus, *i, NULL, !!argv[2]);
d9130355
LP		 476 if (q < 0 && r >= 0)
477 r = q;
478 }
479 }
480
481 return r;
482}
483
1fc55609
LP		 484static int format_cmdline(sd_bus_message *m, FILE *f, bool needs_space) {
485 int r;
486
487 for (;;) {
488 const char *contents = NULL;
489 char type;
490 union {
491 uint8_t u8;
492 uint16_t u16;
493 int16_t s16;
494 uint32_t u32;
495 int32_t s32;
496 uint64_t u64;
497 int64_t s64;
498 double d64;
499 const char *string;
500 int i;
501 } basic;
502
503 r = sd_bus_message_peek_type(m, &type, &contents);
504 if (r <= 0)
505 return r;
506
507 if (bus_type_is_container(type) > 0) {
508
509 r = sd_bus_message_enter_container(m, type, contents);
510 if (r < 0)
511 return r;
512
513 if (type == SD_BUS_TYPE_ARRAY) {
514 unsigned n = 0;
515
516 /* count array entries */
517 for (;;) {
518
519 r = sd_bus_message_skip(m, contents);
520 if (r < 0)
521 return r;
522 if (r == 0)
523 break;
524
525 n++;
526 }
527
528 r = sd_bus_message_rewind(m, false);
529 if (r < 0)
530 return r;
531
532 if (needs_space)
533 fputc(' ', f);
534
535 fprintf(f, "%u", n);
536 } else if (type == SD_BUS_TYPE_VARIANT) {
537
538 if (needs_space)
539 fputc(' ', f);
540
541 fprintf(f, "%s", contents);
542 }
543
1ed24c61 544 r = format_cmdline(m, f, needs_space || IN_SET(type, SD_BUS_TYPE_ARRAY, SD_BUS_TYPE_VARIANT));
1fc55609
LP		 545 if (r < 0)
546 return r;
547
548 r = sd_bus_message_exit_container(m);
549 if (r < 0)
550 return r;
551
552 continue;
553 }
554
555 r = sd_bus_message_read_basic(m, type, &basic);
556 if (r < 0)
557 return r;
558
559 if (needs_space)
560 fputc(' ', f);
561
562 switch (type) {
563 case SD_BUS_TYPE_BYTE:
564 fprintf(f, "%u", basic.u8);
565 break;
566
567 case SD_BUS_TYPE_BOOLEAN:
568 fputs(true_false(basic.i), f);
569 break;
570
571 case SD_BUS_TYPE_INT16:
572 fprintf(f, "%i", basic.s16);
573 break;
574
575 case SD_BUS_TYPE_UINT16:
576 fprintf(f, "%u", basic.u16);
577 break;
578
579 case SD_BUS_TYPE_INT32:
580 fprintf(f, "%i", basic.s32);
581 break;
582
583 case SD_BUS_TYPE_UINT32:
584 fprintf(f, "%u", basic.u32);
585 break;
586
587 case SD_BUS_TYPE_INT64:
588 fprintf(f, "%" PRIi64, basic.s64);
589 break;
590
591 case SD_BUS_TYPE_UINT64:
592 fprintf(f, "%" PRIu64, basic.u64);
593 break;
594
595 case SD_BUS_TYPE_DOUBLE:
596 fprintf(f, "%g", basic.d64);
597 break;
598
599 case SD_BUS_TYPE_STRING:
600 case SD_BUS_TYPE_OBJECT_PATH:
601 case SD_BUS_TYPE_SIGNATURE: {
602 _cleanup_free_ char *b = NULL;
603
604 b = cescape(basic.string);
605 if (!b)
606 return -ENOMEM;
607
608 fprintf(f, "\"%s\"", b);
609 break;
610 }
611
612 case SD_BUS_TYPE_UNIX_FD:
613 fprintf(f, "%i", basic.i);
614 break;
615
616 default:
617 assert_not_reached("Unknown basic type.");
618 }
619
1ed24c61 620 needs_space = true;
1fc55609
LP		 621 }
622}
623
0171da06
LP		 624typedef struct Member {
625 const char *type;
626 char *interface;
627 char *name;
628 char *signature;
629 char *result;
1fc55609 630 char *value;
0171da06
LP		 631 bool writable;
632 uint64_t flags;
633} Member;
634
b826ab58 635static void member_hash_func(const void *p, struct siphash *state) {
0171da06 636 const Member *m = p;
1e2527a6 637 uint64_t arity = 1;
0171da06
LP		 638
639 assert(m);
640 assert(m->type);
641
b826ab58 642 string_hash_func(m->type, state);
0171da06 643
1e2527a6
TG		 644 arity += !!m->name + !!m->interface;
645
646 uint64_hash_func(&arity, state);
647
0171da06 648 if (m->name)
b826ab58 649 string_hash_func(m->name, state);
0171da06
LP		 650
651 if (m->interface)
b826ab58 652 string_hash_func(m->interface, state);
0171da06
LP		 653}
654
655static int member_compare_func(const void *a, const void *b) {
656 const Member *x = a, *y = b;
657 int d;
658
659 assert(x);
660 assert(y);
661 assert(x->type);
662 assert(y->type);
663
c030a850
NK		 664 d = strcmp_ptr(x->interface, y->interface);
665 if (d != 0)
666 return d;
0171da06
LP		 667
668 d = strcmp(x->type, y->type);
669 if (d != 0)
670 return d;
671
c030a850 672 return strcmp_ptr(x->name, y->name);
0171da06
LP		 673}
674
675static int member_compare_funcp(const void *a, const void *b) {
676 const Member *const * x = (const Member *const *) a, * const *y = (const Member *const *) b;
677
678 return member_compare_func(*x, *y);
679}
680
681static void member_free(Member *m) {
682 if (!m)
683 return;
684
685 free(m->interface);
686 free(m->name);
687 free(m->signature);
688 free(m->result);
1fc55609 689 free(m->value);
0171da06
LP		 690 free(m);
691}
692
693DEFINE_TRIVIAL_CLEANUP_FUNC(Member*, member_free);
694
695static void member_set_free(Set *s) {
696 Member *m;
697
698 while ((m = set_steal_first(s)))
699 member_free(m);
700
701 set_free(s);
702}
703
704DEFINE_TRIVIAL_CLEANUP_FUNC(Set*, member_set_free);
705
706static int on_interface(const char *interface, uint64_t flags, void *userdata) {
707 _cleanup_(member_freep) Member *m;
708 Set *members = userdata;
709 int r;
710
711 assert(interface);
712 assert(members);
713
714 m = new0(Member, 1);
715 if (!m)
716 return log_oom();
717
718 m->type = "interface";
719 m->flags = flags;
720
721 r = free_and_strdup(&m->interface, interface);
722 if (r < 0)
723 return log_oom();
724
725 r = set_put(members, m);
726 if (r <= 0) {
727 log_error("Duplicate interface");
728 return -EINVAL;
729 }
730
731 m = NULL;
732 return 0;
733}
734
735static int on_method(const char *interface, const char *name, const char *signature, const char *result, uint64_t flags, void *userdata) {
736 _cleanup_(member_freep) Member *m;
737 Set *members = userdata;
738 int r;
739
740 assert(interface);
741 assert(name);
742
743 m = new0(Member, 1);
744 if (!m)
745 return log_oom();
746
747 m->type = "method";
748 m->flags = flags;
749
750 r = free_and_strdup(&m->interface, interface);
751 if (r < 0)
752 return log_oom();
753
754 r = free_and_strdup(&m->name, name);
755 if (r < 0)
756 return log_oom();
757
758 r = free_and_strdup(&m->signature, signature);
759 if (r < 0)
760 return log_oom();
761
762 r = free_and_strdup(&m->result, result);
763 if (r < 0)
764 return log_oom();
765
766 r = set_put(members, m);
767 if (r <= 0) {
768 log_error("Duplicate method");
769 return -EINVAL;
770 }
771
772 m = NULL;
773 return 0;
774}
775
776static int on_signal(const char *interface, const char *name, const char *signature, uint64_t flags, void *userdata) {
777 _cleanup_(member_freep) Member *m;
778 Set *members = userdata;
779 int r;
780
781 assert(interface);
782 assert(name);
783
784 m = new0(Member, 1);
785 if (!m)
786 return log_oom();
787
788 m->type = "signal";
789 m->flags = flags;
790
791 r = free_and_strdup(&m->interface, interface);
792 if (r < 0)
793 return log_oom();
794
795 r = free_and_strdup(&m->name, name);
796 if (r < 0)
797 return log_oom();
798
799 r = free_and_strdup(&m->signature, signature);
800 if (r < 0)
801 return log_oom();
802
803 r = set_put(members, m);
804 if (r <= 0) {
805 log_error("Duplicate signal");
806 return -EINVAL;
807 }
808
809 m = NULL;
810 return 0;
811}
812
813static int on_property(const char *interface, const char *name, const char *signature, bool writable, uint64_t flags, void *userdata) {
814 _cleanup_(member_freep) Member *m;
815 Set *members = userdata;
816 int r;
817
818 assert(interface);
819 assert(name);
820
821 m = new0(Member, 1);
822 if (!m)
823 return log_oom();
824
825 m->type = "property";
826 m->flags = flags;
827 m->writable = writable;
828
829 r = free_and_strdup(&m->interface, interface);
830 if (r < 0)
831 return log_oom();
832
833 r = free_and_strdup(&m->name, name);
834 if (r < 0)
835 return log_oom();
836
837 r = free_and_strdup(&m->signature, signature);
838 if (r < 0)
839 return log_oom();
840
841 r = set_put(members, m);
842 if (r <= 0) {
843 log_error("Duplicate property");
844 return -EINVAL;
845 }
846
847 m = NULL;
848 return 0;
849}
850
851static const char *strdash(const char *x) {
852 return isempty(x) ? "-" : x;
853}
854
855static int introspect(sd_bus *bus, char **argv) {
856 static const struct hash_ops member_hash_ops = {
857 .hash = member_hash_func,
858 .compare = member_compare_func,
859 };
860
861 static const XMLIntrospectOps ops = {
862 .on_interface = on_interface,
863 .on_method = on_method,
864 .on_signal = on_signal,
865 .on_property = on_property,
866 };
867
4afd3348
LP		 868 _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL;
869 _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
0171da06
LP		 870 _cleanup_(member_set_freep) Set *members = NULL;
871 Iterator i;
872 Member *m;
873 const char *xml;
874 int r;
875 unsigned name_width, type_width, signature_width, result_width;
876 Member **sorted = NULL;
4f44c03e 877 unsigned k = 0, j, n_args;
0171da06 878
4f44c03e
LP		 879 n_args = strv_length(argv);
880 if (n_args < 3) {
0171da06
LP		 881 log_error("Requires service and object path argument.");
882 return -EINVAL;
883 }
884
4f44c03e
LP		 885 if (n_args > 4) {
886 log_error("Too many arguments.");
887 return -EINVAL;
888 }
889
0171da06
LP		 890 members = set_new(&member_hash_ops);
891 if (!members)
892 return log_oom();
893
894 r = sd_bus_call_method(bus, argv[1], argv[2], "org.freedesktop.DBus.Introspectable", "Introspect", &error, &reply, "");
895 if (r < 0) {
896 log_error("Failed to introspect object %s of service %s: %s", argv[2], argv[1], bus_error_message(&error, r));
897 return r;
898 }
899
900 r = sd_bus_message_read(reply, "s", &xml);
901 if (r < 0)
902 return bus_log_parse_error(r);
903
1fc55609 904 /* First, get list of all properties */
0171da06
LP		 905 r = parse_xml_introspect(argv[2], xml, &ops, members);
906 if (r < 0)
907 return r;
908
1fc55609
LP		 909 /* Second, find the current values for them */
910 SET_FOREACH(m, members, i) {
911
912 if (!streq(m->type, "property"))
913 continue;
914
915 if (m->value)
916 continue;
917
4f44c03e
LP		 918 if (argv[3] && !streq(argv[3], m->interface))
919 continue;
920
1fc55609
LP		 921 r = sd_bus_call_method(bus, argv[1], argv[2], "org.freedesktop.DBus.Properties", "GetAll", &error, &reply, "s", m->interface);
922 if (r < 0) {
923 log_error("%s", bus_error_message(&error, r));
924 return r;
925 }
926
927 r = sd_bus_message_enter_container(reply, 'a', "{sv}");
928 if (r < 0)
929 return bus_log_parse_error(r);
930
931 for (;;) {
932 Member *z;
933 _cleanup_free_ char *buf = NULL;
934 _cleanup_fclose_ FILE *mf = NULL;
935 size_t sz = 0;
936 const char *name;
937
938 r = sd_bus_message_enter_container(reply, 'e', "sv");
939 if (r < 0)
940 return bus_log_parse_error(r);
941
942 if (r == 0)
943 break;
944
945 r = sd_bus_message_read(reply, "s", &name);
946 if (r < 0)
947 return bus_log_parse_error(r);
948
949 r = sd_bus_message_enter_container(reply, 'v', NULL);
950 if (r < 0)
951 return bus_log_parse_error(r);
952
953 mf = open_memstream(&buf, &sz);
954 if (!mf)
955 return log_oom();
956
957 r = format_cmdline(reply, mf, false);
958 if (r < 0)
959 return bus_log_parse_error(r);
960
961 fclose(mf);
962 mf = NULL;
963
964 z = set_get(members, &((Member) {
965 .type = "property",
966 .interface = m->interface,
967 .name = (char*) name }));
968 if (z) {
969 free(z->value);
970 z->value = buf;
971 buf = NULL;
972 }
973
974 r = sd_bus_message_exit_container(reply);
975 if (r < 0)
976 return bus_log_parse_error(r);
977
978 r = sd_bus_message_exit_container(reply);
979 if (r < 0)
980 return bus_log_parse_error(r);
981 }
982
983 r = sd_bus_message_exit_container(reply);
984 if (r < 0)
985 return bus_log_parse_error(r);
986 }
987
0171da06
LP		 988 pager_open_if_enabled();
989
990 name_width = strlen("NAME");
991 type_width = strlen("TYPE");
992 signature_width = strlen("SIGNATURE");
1fc55609 993 result_width = strlen("RESULT/VALUE");
0171da06
LP		 994
995 sorted = newa(Member*, set_size(members));
996
997 SET_FOREACH(m, members, i) {
4f44c03e
LP		 998
999 if (argv[3] && !streq(argv[3], m->interface))
1000 continue;
1001
0171da06
LP		 1002 if (m->interface)
1003 name_width = MAX(name_width, strlen(m->interface));
1004 if (m->name)
1005 name_width = MAX(name_width, strlen(m->name) + 1);
1006 if (m->type)
1007 type_width = MAX(type_width, strlen(m->type));
1008 if (m->signature)
1009 signature_width = MAX(signature_width, strlen(m->signature));
1010 if (m->result)
1011 result_width = MAX(result_width, strlen(m->result));
1fc55609
LP		 1012 if (m->value)
1013 result_width = MAX(result_width, strlen(m->value));
0171da06
LP		 1014
1015 sorted[k++] = m;
1016 }
1017
1fc55609
LP		 1018 if (result_width > 40)
1019 result_width = 40;
1020
0171da06
LP		 1021 qsort(sorted, k, sizeof(Member*), member_compare_funcp);
1022
1fc55609
LP		 1023 if (arg_legend) {
1024 printf("%-*s %-*s %-*s %-*s %s\n",
1025 (int) name_width, "NAME",
1026 (int) type_width, "TYPE",
1027 (int) signature_width, "SIGNATURE",
1028 (int) result_width, "RESULT/VALUE",
1029 "FLAGS");
1030 }
0171da06
LP		 1031
1032 for (j = 0; j < k; j++) {
1fc55609
LP		 1033 _cleanup_free_ char *ellipsized = NULL;
1034 const char *rv;
0171da06
LP		 1035 bool is_interface;
1036
1037 m = sorted[j];
1038
4f44c03e
LP		 1039 if (argv[3] && !streq(argv[3], m->interface))
1040 continue;
1041
0171da06
LP		 1042 is_interface = streq(m->type, "interface");
1043
4f44c03e
LP		 1044 if (argv[3] && is_interface)
1045 continue;
1046
1fc55609
LP		 1047 if (m->value) {
1048 ellipsized = ellipsize(m->value, result_width, 100);
1049 if (!ellipsized)
1050 return log_oom();
1051
1052 rv = ellipsized;
1053 } else
1054 rv = strdash(m->result);
1055
0171da06
LP		 1056 printf("%s%s%-*s%s %-*s %-*s %-*s%s%s%s%s%s%s\n",
1057 is_interface ? ansi_highlight() : "",
1058 is_interface ? "" : ".",
1059 - !is_interface + (int) name_width, strdash(streq_ptr(m->type, "interface") ? m->interface : m->name),
1fc464f6 1060 is_interface ? ansi_normal() : "",
0171da06
LP		 1061 (int) type_width, strdash(m->type),
1062 (int) signature_width, strdash(m->signature),
1fc55609 1063 (int) result_width, rv,
0171da06
LP		 1064 (m->flags & SD_BUS_VTABLE_DEPRECATED) ? " deprecated" : (m->flags || m->writable ? "" : " -"),
1065 (m->flags & SD_BUS_VTABLE_METHOD_NO_REPLY) ? " no-reply" : "",
1066 (m->flags & SD_BUS_VTABLE_PROPERTY_CONST) ? " const" : "",
1067 (m->flags & SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE) ? " emits-change" : "",
1068 (m->flags & SD_BUS_VTABLE_PROPERTY_EMITS_INVALIDATION) ? " emits-invalidation" : "",
1069 m->writable ? " writable" : "");
1070 }
1071
1072 return 0;
1073}
1074
1f70b087 1075static int message_dump(sd_bus_message *m, FILE *f) {
d55192ad 1076 return bus_message_dump(m, f, BUS_MESSAGE_DUMP_WITH_HEADER);
1f70b087
LP		 1077}
1078
1079static int message_pcap(sd_bus_message *m, FILE *f) {
1080 return bus_message_pcap_frame(m, arg_snaplen, f);
1081}
1082
1083static int monitor(sd_bus *bus, char *argv[], int (*dump)(sd_bus_message *m, FILE *f)) {
b51f299a 1084 bool added_something = false;
1f849790
LP		 1085 char **i;
1086 int r;
1087
1088 STRV_FOREACH(i, argv+1) {
1089 _cleanup_free_ char *m = NULL;
1090
1091 if (!service_name_is_valid(*i)) {
1092 log_error("Invalid service name '%s'", *i);
1093 return -EINVAL;
1094 }
1095
1096 m = strjoin("sender='", *i, "'", NULL);
1097 if (!m)
1098 return log_oom();
1099
19befb2d 1100 r = sd_bus_add_match(bus, NULL, m, NULL, NULL);
23bbb0de
MS		 1101 if (r < 0)
1102 return log_error_errno(r, "Failed to add match: %m");
b51f299a 1103
f6d1e6cb
LU		 1104 free(m);
1105 m = strjoin("destination='", *i, "'", NULL);
1106 if (!m)
1107 return log_oom();
1108
1109 r = sd_bus_add_match(bus, NULL, m, NULL, NULL);
1110 if (r < 0)
1111 return log_error_errno(r, "Failed to add match: %m");
1112
b51f299a 1113 added_something = true;
1f849790
LP		 1114 }
1115
1116 STRV_FOREACH(i, arg_matches) {
19befb2d 1117 r = sd_bus_add_match(bus, NULL, *i, NULL, NULL);
23bbb0de
MS		 1118 if (r < 0)
1119 return log_error_errno(r, "Failed to add match: %m");
b51f299a
LP		 1120
1121 added_something = true;
1122 }
1123
1124 if (!added_something) {
19befb2d 1125 r = sd_bus_add_match(bus, NULL, "", NULL, NULL);
23bbb0de
MS		 1126 if (r < 0)
1127 return log_error_errno(r, "Failed to add match: %m");
1f849790
LP		 1128 }
1129
92d66625
LP		 1130 log_info("Monitoring bus message stream.");
1131
1f849790 1132 for (;;) {
4afd3348 1133 _cleanup_(sd_bus_message_unrefp) sd_bus_message *m = NULL;
1f849790
LP		 1134
1135 r = sd_bus_process(bus, &m);
23bbb0de
MS		 1136 if (r < 0)
1137 return log_error_errno(r, "Failed to process bus: %m");
1f849790
LP		 1138
1139 if (m) {
1f70b087 1140 dump(m, stdout);
1d44f758 1141 fflush(stdout);
92d66625
LP		 1142
1143 if (sd_bus_message_is_signal(m, "org.freedesktop.DBus.Local", "Disconnected") > 0) {
1144 log_info("Connection terminated, exiting.");
1145 return 0;
1146 }
1147
1f849790
LP		 1148 continue;
1149 }
1150
1151 if (r > 0)
1152 continue;
1153
1154 r = sd_bus_wait(bus, (uint64_t) -1);
23bbb0de
MS		 1155 if (r < 0)
1156 return log_error_errno(r, "Failed to wait for bus: %m");
1f849790 1157 }
95c4fe82 1158}
1f849790 1159
1f70b087
LP		 1160static int capture(sd_bus *bus, char *argv[]) {
1161 int r;
1162
1163 if (isatty(fileno(stdout)) > 0) {
1164 log_error("Refusing to write message data to console, please redirect output to a file.");
1165 return -EINVAL;
1166 }
1167
1168 bus_pcap_header(arg_snaplen, stdout);
1169
1170 r = monitor(bus, argv, message_pcap);
1171 if (r < 0)
1172 return r;
1173
1174 if (ferror(stdout)) {
1175 log_error("Couldn't write capture file.");
1176 return -EIO;
1177 }
1178
1179 return r;
1180}
1181
95c4fe82 1182static int status(sd_bus *bus, char *argv[]) {
4afd3348 1183 _cleanup_(sd_bus_creds_unrefp) sd_bus_creds *creds = NULL;
95c4fe82
LP		 1184 pid_t pid;
1185 int r;
1186
1187 assert(bus);
1188
2e9efd22
LP		 1189 if (strv_length(argv) > 2) {
1190 log_error("Expects no or one argument.");
95c4fe82
LP		 1191 return -EINVAL;
1192 }
1193
2e9efd22
LP		 1194 if (argv[1]) {
1195 r = parse_pid(argv[1], &pid);
1196 if (r < 0)
1197 r = sd_bus_get_name_creds(
1198 bus,
1199 argv[1],
1200 (arg_augment_creds ? SD_BUS_CREDS_AUGMENT : 0) | _SD_BUS_CREDS_ALL,
1201 &creds);
1202 else
1203 r = sd_bus_creds_new_from_pid(
1204 &creds,
1205 pid,
1206 _SD_BUS_CREDS_ALL);
3acc1daf 1207 } else {
5b820358 1208 const char *scope, *address;
5c302692 1209 sd_id128_t bus_id;
3acc1daf 1210
5b820358
LP		 1211 r = sd_bus_get_address(bus, &address);
1212 if (r >= 0)
1fc464f6 1213 printf("BusAddress=%s%s%s\n", ansi_highlight(), address, ansi_normal());
5b820358 1214
3acc1daf
LP		 1215 r = sd_bus_get_scope(bus, &scope);
1216 if (r >= 0)
1fc464f6 1217 printf("BusScope=%s%s%s\n", ansi_highlight(), scope, ansi_normal());
3acc1daf 1218
5c302692
LP		 1219 r = sd_bus_get_bus_id(bus, &bus_id);
1220 if (r >= 0)
1fc464f6 1221 printf("BusID=%s" SD_ID128_FORMAT_STR "%s\n", ansi_highlight(), SD_ID128_FORMAT_VAL(bus_id), ansi_normal());
5c302692 1222
2e9efd22 1223 r = sd_bus_get_owner_creds(
40ed1a45 1224 bus,
40ed1a45
LP		 1225 (arg_augment_creds ? SD_BUS_CREDS_AUGMENT : 0) | _SD_BUS_CREDS_ALL,
1226 &creds);
3acc1daf 1227 }
95c4fe82 1228
23bbb0de
MS		 1229 if (r < 0)
1230 return log_error_errno(r, "Failed to get credentials: %m");
95c4fe82 1231
d0b2babf 1232 bus_creds_dump(creds, NULL, false);
95c4fe82 1233 return 0;
1f849790
LP		 1234}
1235
781fa938
LP		 1236static int message_append_cmdline(sd_bus_message *m, const char *signature, char ***x) {
1237 char **p;
1238 int r;
1239
1240 assert(m);
1241 assert(signature);
1242 assert(x);
1243
1244 p = *x;
1245
1246 for (;;) {
1247 const char *v;
1248 char t;
1249
1250 t = *signature;
1251 v = *p;
1252
1253 if (t == 0)
1254 break;
1255 if (!v) {
1256 log_error("Too few parameters for signature.");
1257 return -EINVAL;
1258 }
1259
1260 signature++;
1261 p++;
1262
1263 switch (t) {
1264
1265 case SD_BUS_TYPE_BOOLEAN:
1266
1267 r = parse_boolean(v);
1268 if (r < 0) {
1269 log_error("Failed to parse as boolean: %s", v);
1270 return r;
1271 }
1272
1273 r = sd_bus_message_append_basic(m, t, &r);
1274 break;
1275
1276 case SD_BUS_TYPE_BYTE: {
1277 uint8_t z;
1278
1279 r = safe_atou8(v, &z);
1280 if (r < 0) {
1281 log_error("Failed to parse as byte (unsigned 8bit integer): %s", v);
1282 return r;
1283 }
1284
1285 r = sd_bus_message_append_basic(m, t, &z);
1286 break;
1287 }
1288
1289 case SD_BUS_TYPE_INT16: {
1290 int16_t z;
1291
1292 r = safe_atoi16(v, &z);
1293 if (r < 0) {
1294 log_error("Failed to parse as signed 16bit integer: %s", v);
1295 return r;
1296 }
1297
1298 r = sd_bus_message_append_basic(m, t, &z);
1299 break;
1300 }
1301
1302 case SD_BUS_TYPE_UINT16: {
1303 uint16_t z;
1304
1305 r = safe_atou16(v, &z);
1306 if (r < 0) {
1307 log_error("Failed to parse as unsigned 16bit integer: %s", v);
1308 return r;
1309 }
1310
1311 r = sd_bus_message_append_basic(m, t, &z);
1312 break;
1313 }
1314
1315 case SD_BUS_TYPE_INT32: {
1316 int32_t z;
1317
1318 r = safe_atoi32(v, &z);
1319 if (r < 0) {
1320 log_error("Failed to parse as signed 32bit integer: %s", v);
1321 return r;
1322 }
1323
1324 r = sd_bus_message_append_basic(m, t, &z);
1325 break;
1326 }
1327
1328 case SD_BUS_TYPE_UINT32: {
1329 uint32_t z;
1330
1331 r = safe_atou32(v, &z);
1332 if (r < 0) {
1333 log_error("Failed to parse as unsigned 32bit integer: %s", v);
1334 return r;
1335 }
1336
1337 r = sd_bus_message_append_basic(m, t, &z);
1338 break;
1339 }
1340
1341 case SD_BUS_TYPE_INT64: {
1342 int64_t z;
1343
1344 r = safe_atoi64(v, &z);
1345 if (r < 0) {
1346 log_error("Failed to parse as signed 64bit integer: %s", v);
1347 return r;
1348 }
1349
1350 r = sd_bus_message_append_basic(m, t, &z);
1351 break;
1352 }
1353
1354 case SD_BUS_TYPE_UINT64: {
1355 uint64_t z;
1356
1357 r = safe_atou64(v, &z);
1358 if (r < 0) {
1359 log_error("Failed to parse as unsigned 64bit integer: %s", v);
1360 return r;
1361 }
1362
1363 r = sd_bus_message_append_basic(m, t, &z);
1364 break;
1365 }
1366
1367
1368 case SD_BUS_TYPE_DOUBLE: {
1369 double z;
1370
1371 r = safe_atod(v, &z);
1372 if (r < 0) {
1373 log_error("Failed to parse as double precision floating point: %s", v);
1374 return r;
1375 }
1376
1377 r = sd_bus_message_append_basic(m, t, &z);
1378 break;
1379 }
1380
1381 case SD_BUS_TYPE_STRING:
1382 case SD_BUS_TYPE_OBJECT_PATH:
1383 case SD_BUS_TYPE_SIGNATURE:
1384
1385 r = sd_bus_message_append_basic(m, t, v);
1386 break;
1387
1388 case SD_BUS_TYPE_ARRAY: {
1389 uint32_t n;
1390 size_t k;
1391
1392 r = safe_atou32(v, &n);
1393 if (r < 0) {
1394 log_error("Failed to parse number of array entries: %s", v);
1395 return r;
1396 }
1397
1398 r = signature_element_length(signature, &k);
1399 if (r < 0) {
1400 log_error("Invalid array signature.");
1401 return r;
1402 }
1403
1404 {
1405 unsigned i;
1406 char s[k + 1];
1407 memcpy(s, signature, k);
1408 s[k] = 0;
1409
1410 r = sd_bus_message_open_container(m, SD_BUS_TYPE_ARRAY, s);
1411 if (r < 0)
1412 return bus_log_create_error(r);
1413
1414 for (i = 0; i < n; i++) {
1415 r = message_append_cmdline(m, s, &p);
1416 if (r < 0)
1417 return r;
1418 }
1419 }
1420
1421 signature += k;
1422
1423 r = sd_bus_message_close_container(m);
1424 break;
1425 }
1426
1427 case SD_BUS_TYPE_VARIANT:
1428 r = sd_bus_message_open_container(m, SD_BUS_TYPE_VARIANT, v);
1429 if (r < 0)
1430 return bus_log_create_error(r);
1431
1432 r = message_append_cmdline(m, v, &p);
1433 if (r < 0)
1434 return r;
1435
1436 r = sd_bus_message_close_container(m);
1437 break;
1438
1439 case SD_BUS_TYPE_STRUCT_BEGIN:
1440 case SD_BUS_TYPE_DICT_ENTRY_BEGIN: {
1441 size_t k;
1442
1443 signature--;
1444 p--;
1445
1446 r = signature_element_length(signature, &k);
1447 if (r < 0) {
1448 log_error("Invalid struct/dict entry signature.");
1449 return r;
1450 }
1451
1452 {
1453 char s[k-1];
1454 memcpy(s, signature + 1, k - 2);
1455 s[k - 2] = 0;
1456
1457 r = sd_bus_message_open_container(m, t == SD_BUS_TYPE_STRUCT_BEGIN ? SD_BUS_TYPE_STRUCT : SD_BUS_TYPE_DICT_ENTRY, s);
1458 if (r < 0)
1459 return bus_log_create_error(r);
1460
1461 r = message_append_cmdline(m, s, &p);
1462 if (r < 0)
1463 return r;
1464 }
1465
1466 signature += k;
1467
1468 r = sd_bus_message_close_container(m);
1469 break;
1470 }
1471
1472 case SD_BUS_TYPE_UNIX_FD:
1473 log_error("UNIX file descriptor not supported as type.");
1474 return -EINVAL;
1475
1476 default:
1477 log_error("Unknown signature type %c.", t);
1478 return -EINVAL;
1479 }
1480
1481 if (r < 0)
1482 return bus_log_create_error(r);
1483 }
1484
1485 *x = p;
1486 return 0;
1487}
1488
1489static int call(sd_bus *bus, char *argv[]) {
4afd3348
LP		 1490 _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
1491 _cleanup_(sd_bus_message_unrefp) sd_bus_message *m = NULL, *reply = NULL;
781fa938
LP		 1492 int r;
1493
1494 assert(bus);
1495
1496 if (strv_length(argv) < 5) {
1497 log_error("Expects at least four arguments.");
1498 return -EINVAL;
1499 }
1500
1501 r = sd_bus_message_new_method_call(bus, &m, argv[1], argv[2], argv[3], argv[4]);
79f34de9
LP		 1502 if (r < 0)
1503 return bus_log_create_error(r);
781fa938 1504
38051578
LP		 1505 r = sd_bus_message_set_expect_reply(m, arg_expect_reply);
1506 if (r < 0)
1507 return bus_log_create_error(r);
1508
1509 r = sd_bus_message_set_auto_start(m, arg_auto_start);
1510 if (r < 0)
1511 return bus_log_create_error(r);
1512
1513 r = sd_bus_message_set_allow_interactive_authorization(m, arg_allow_interactive_authorization);
1514 if (r < 0)
1515 return bus_log_create_error(r);
1516
781fa938
LP		 1517 if (!isempty(argv[5])) {
1518 char **p;
1519
1520 p = argv+6;
1521
1522 r = message_append_cmdline(m, argv[5], &p);
1523 if (r < 0)
1524 return r;
1525
1526 if (*p) {
1527 log_error("Too many parameters for signature.");
1528 return -EINVAL;
1529 }
1530 }
1531
38051578
LP		 1532 if (!arg_expect_reply) {
1533 r = sd_bus_send(bus, m, NULL);
1534 if (r < 0) {
1535 log_error("Failed to send message.");
1536 return r;
1537 }
1538
1539 return 0;
1540 }
1541
a44b1081 1542 r = sd_bus_call(bus, m, arg_timeout, &error, &reply);
781fa938
LP		 1543 if (r < 0) {
1544 log_error("%s", bus_error_message(&error, r));
1545 return r;
1546 }
1547
1548 r = sd_bus_message_is_empty(reply);
1549 if (r < 0)
1550 return bus_log_parse_error(r);
1fc55609 1551
781fa938 1552 if (r == 0 && !arg_quiet) {
1fc55609
LP		 1553
1554 if (arg_verbose) {
1555 pager_open_if_enabled();
1556
1557 r = bus_message_dump(reply, stdout, 0);
1558 if (r < 0)
1559 return r;
1560 } else {
1561
1562 fputs(sd_bus_message_get_signature(reply, true), stdout);
1563 fputc(' ', stdout);
1564
1565 r = format_cmdline(reply, stdout, false);
1566 if (r < 0)
1567 return bus_log_parse_error(r);
1568
1569 fputc('\n', stdout);
1570 }
d55192ad
LP		 1571 }
1572
1573 return 0;
1574}
1575
1576static int get_property(sd_bus *bus, char *argv[]) {
4afd3348 1577 _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
d55192ad 1578 unsigned n;
1fc55609 1579 char **i;
d55192ad
LP		 1580 int r;
1581
1582 assert(bus);
1583
1584 n = strv_length(argv);
1fc55609
LP		 1585 if (n < 5) {
1586 log_error("Expects at least four arguments.");
d55192ad
LP		 1587 return -EINVAL;
1588 }
1589
1fc55609 1590 STRV_FOREACH(i, argv + 4) {
4afd3348 1591 _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL;
1fc55609
LP		 1592 const char *contents = NULL;
1593 char type;
d55192ad 1594
1fc55609 1595 r = sd_bus_call_method(bus, argv[1], argv[2], "org.freedesktop.DBus.Properties", "Get", &error, &reply, "ss", argv[3], *i);
d55192ad
LP		 1596 if (r < 0) {
1597 log_error("%s", bus_error_message(&error, r));
1598 return r;
1599 }
1600
1fc55609 1601 r = sd_bus_message_peek_type(reply, &type, &contents);
d55192ad
LP		 1602 if (r < 0)
1603 return bus_log_parse_error(r);
1604
1fc55609
LP		 1605 r = sd_bus_message_enter_container(reply, 'v', contents);
1606 if (r < 0)
1607 return bus_log_parse_error(r);
d55192ad 1608
1fc55609 1609 if (arg_verbose) {
d55192ad 1610 pager_open_if_enabled();
d55192ad 1611
1fc55609 1612 r = bus_message_dump(reply, stdout, BUS_MESSAGE_DUMP_SUBTREE_ONLY);
d55192ad 1613 if (r < 0)
1fc55609
LP		 1614 return r;
1615 } else {
1616 fputs(contents, stdout);
1617 fputc(' ', stdout);
d55192ad 1618
1fc55609 1619 r = format_cmdline(reply, stdout, false);
d55192ad
LP		 1620 if (r < 0)
1621 return bus_log_parse_error(r);
1622
1fc55609 1623 fputc('\n', stdout);
d55192ad
LP		 1624 }
1625
1626 r = sd_bus_message_exit_container(reply);
1627 if (r < 0)
1628 return bus_log_parse_error(r);
1fc55609 1629 }
d55192ad 1630
1fc55609
LP		 1631 return 0;
1632}
d55192ad 1633
1fc55609 1634static int set_property(sd_bus *bus, char *argv[]) {
4afd3348
LP		 1635 _cleanup_(sd_bus_message_unrefp) sd_bus_message *m = NULL;
1636 _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
1fc55609
LP		 1637 unsigned n;
1638 char **p;
1639 int r;
d55192ad 1640
1fc55609 1641 assert(bus);
d55192ad 1642
1fc55609
LP		 1643 n = strv_length(argv);
1644 if (n < 6) {
1645 log_error("Expects at least five arguments.");
1646 return -EINVAL;
1647 }
d55192ad 1648
1fc55609
LP		 1649 r = sd_bus_message_new_method_call(bus, &m, argv[1], argv[2], "org.freedesktop.DBus.Properties", "Set");
1650 if (r < 0)
1651 return bus_log_create_error(r);
d55192ad 1652
1fc55609
LP		 1653 r = sd_bus_message_append(m, "ss", argv[3], argv[4]);
1654 if (r < 0)
1655 return bus_log_create_error(r);
d55192ad 1656
1fc55609
LP		 1657 r = sd_bus_message_open_container(m, 'v', argv[5]);
1658 if (r < 0)
1659 return bus_log_create_error(r);
1660
1661 p = argv+6;
1662 r = message_append_cmdline(m, argv[5], &p);
1663 if (r < 0)
1664 return r;
1665
1666 r = sd_bus_message_close_container(m);
1667 if (r < 0)
1668 return bus_log_create_error(r);
1669
1670 if (*p) {
1671 log_error("Too many parameters for signature.");
1672 return -EINVAL;
1673 }
1674
a44b1081 1675 r = sd_bus_call(bus, m, arg_timeout, &error, NULL);
1fc55609
LP		 1676 if (r < 0) {
1677 log_error("%s", bus_error_message(&error, r));
1678 return r;
781fa938
LP		 1679 }
1680
1681 return 0;
1682}
1683
1f849790 1684static int help(void) {
1f849790
LP		 1685 printf("%s [OPTIONS...] {COMMAND} ...\n\n"
1686 "Introspect the bus.\n\n"
d75edbd6
LP		 1687 " -h --help Show this help\n"
1688 " --version Show package version\n"
a86a47ce 1689 " --no-pager Do not pipe output into a pager\n"
17d47d8d 1690 " --no-legend Do not show the headers and footers\n"
d75edbd6
LP		 1691 " --system Connect to system bus\n"
1692 " --user Connect to user bus\n"
1693 " -H --host=[USER@]HOST Operate on remote host\n"
1694 " -M --machine=CONTAINER Operate on local container\n"
1695 " --address=ADDRESS Connect to bus specified by address\n"
56e61788
LP		 1696 " --show-machine Show machine ID column in list\n"
1697 " --unique Only show unique names\n"
1698 " --acquired Only show acquired names\n"
1699 " --activatable Only show activatable names\n"
d9130355 1700 " --match=MATCH Only show matching messages\n"
d28ebe27 1701 " --size=SIZE Maximum length of captured packet\n"
781fa938 1702 " --list Don't show tree, but simple object path list\n"
1fc55609 1703 " --quiet Don't show method call reply\n"
38051578
LP		 1704 " --verbose Show result values in long format\n"
1705 " --expect-reply=BOOL Expect a method call reply\n"
1706 " --auto-start=BOOL Auto-start destination service\n"
1707 " --allow-interactive-authorization=BOOL\n"
a44b1081 1708 " Allow interactive authorization for operation\n"
40ed1a45
LP		 1709 " --timeout=SECS Maximum time to wait for method call completion\n"
1710 " --augment-creds=BOOL Extend credential data with data read from /proc/$PID\n\n"
1f849790 1711 "Commands:\n"
d75edbd6 1712 " list List bus names\n"
2e9efd22 1713 " status [SERVICE] Show bus service, process or bus owner credentials\n"
d94fe1f1 1714 " monitor [SERVICE...] Show bus traffic\n"
1f70b087 1715 " capture [SERVICE...] Capture bus traffic as pcap\n"
0171da06 1716 " tree [SERVICE...] Show object tree of service\n"
4f44c03e 1717 " introspect SERVICE OBJECT [INTERFACE]\n"
0171da06 1718 " call SERVICE OBJECT INTERFACE METHOD [SIGNATURE [ARGUMENT...]]\n"
781fa938 1719 " Call a method\n"
1fc55609 1720 " get-property SERVICE OBJECT INTERFACE PROPERTY...\n"
d55192ad 1721 " Get property value\n"
1fc55609
LP		 1722 " set-property SERVICE OBJECT INTERFACE PROPERTY SIGNATURE ARGUMENT...\n"
1723 " Set property value\n"
601185b4
ZJS		 1724 " help Show this help\n"
1725 , program_invocation_short_name);
1f849790
LP		 1726
1727 return 0;
1728}
1729
1730static int parse_argv(int argc, char *argv[]) {
1731
1732 enum {
1733 ARG_VERSION = 0x100,
1734 ARG_NO_PAGER,
17d47d8d 1735 ARG_NO_LEGEND,
1f849790
LP		 1736 ARG_SYSTEM,
1737 ARG_USER,
1738 ARG_ADDRESS,
1739 ARG_MATCH,
56e61788
LP		 1740 ARG_SHOW_MACHINE,
1741 ARG_UNIQUE,
1742 ARG_ACQUIRED,
1f70b087
LP		 1743 ARG_ACTIVATABLE,
1744 ARG_SIZE,
d9130355 1745 ARG_LIST,
1fc55609 1746 ARG_VERBOSE,
38051578
LP		 1747 ARG_EXPECT_REPLY,
1748 ARG_AUTO_START,
1749 ARG_ALLOW_INTERACTIVE_AUTHORIZATION,
a44b1081 1750 ARG_TIMEOUT,
40ed1a45 1751 ARG_AUGMENT_CREDS,
1f849790
LP		 1752 };
1753
1754 static const struct option options[] = {
56e61788
LP		 1755 { "help", no_argument, NULL, 'h' },
1756 { "version", no_argument, NULL, ARG_VERSION },
1757 { "no-pager", no_argument, NULL, ARG_NO_PAGER },
17d47d8d 1758 { "no-legend", no_argument, NULL, ARG_NO_LEGEND },
56e61788
LP		 1759 { "system", no_argument, NULL, ARG_SYSTEM },
1760 { "user", no_argument, NULL, ARG_USER },
1761 { "address", required_argument, NULL, ARG_ADDRESS },
1762 { "show-machine", no_argument, NULL, ARG_SHOW_MACHINE },
1763 { "unique", no_argument, NULL, ARG_UNIQUE },
1764 { "acquired", no_argument, NULL, ARG_ACQUIRED },
1765 { "activatable", no_argument, NULL, ARG_ACTIVATABLE },
1766 { "match", required_argument, NULL, ARG_MATCH },
1767 { "host", required_argument, NULL, 'H' },
1768 { "machine", required_argument, NULL, 'M' },
1f70b087 1769 { "size", required_argument, NULL, ARG_SIZE },
d9130355 1770 { "list", no_argument, NULL, ARG_LIST },
781fa938 1771 { "quiet", no_argument, NULL, 'q' },
1fc55609 1772 { "verbose", no_argument, NULL, ARG_VERBOSE },
38051578
LP		 1773 { "expect-reply", required_argument, NULL, ARG_EXPECT_REPLY },
1774 { "auto-start", required_argument, NULL, ARG_AUTO_START },
1775 { "allow-interactive-authorization", required_argument, NULL, ARG_ALLOW_INTERACTIVE_AUTHORIZATION },
a44b1081 1776 { "timeout", required_argument, NULL, ARG_TIMEOUT },
40ed1a45 1777 { "augment-creds",required_argument, NULL, ARG_AUGMENT_CREDS},
eb9da376 1778 {},
1f849790
LP		 1779 };
1780
1f70b087 1781 int c, r;
1f849790
LP		 1782
1783 assert(argc >= 0);
1784 assert(argv);
1785
781fa938 1786 while ((c = getopt_long(argc, argv, "hH:M:q", options, NULL)) >= 0)
1f849790
LP		 1787
1788 switch (c) {
1789
1790 case 'h':
1791 return help();
1792
1793 case ARG_VERSION:
3f6fd1ba 1794 return version();
1f849790
LP		 1795
1796 case ARG_NO_PAGER:
1797 arg_no_pager = true;
1798 break;
1799
17d47d8d
TA		 1800 case ARG_NO_LEGEND:
1801 arg_legend = false;
1802 break;
1803
1f849790
LP		 1804 case ARG_USER:
1805 arg_user = true;
1806 break;
1807
1808 case ARG_SYSTEM:
1809 arg_user = false;
1810 break;
1811
1812 case ARG_ADDRESS:
1813 arg_address = optarg;
1814 break;
1815
56e61788
LP		 1816 case ARG_SHOW_MACHINE:
1817 arg_show_machine = true;
1818 break;
1819
1820 case ARG_UNIQUE:
1821 arg_unique = true;
1f849790
LP		 1822 break;
1823
56e61788
LP		 1824 case ARG_ACQUIRED:
1825 arg_acquired = true;
1826 break;
1827
1828 case ARG_ACTIVATABLE:
1829 arg_activatable = true;
a4297f08
LP		 1830 break;
1831
1f849790
LP		 1832 case ARG_MATCH:
1833 if (strv_extend(&arg_matches, optarg) < 0)
1834 return log_oom();
1835 break;
1836
1f70b087 1837 case ARG_SIZE: {
59f448cf 1838 uint64_t sz;
1f70b087 1839
59f448cf 1840 r = parse_size(optarg, 1024, &sz);
1f70b087
LP		 1841 if (r < 0) {
1842 log_error("Failed to parse size: %s", optarg);
1843 return r;
1844 }
1845
59f448cf 1846 if ((uint64_t) (size_t) sz != sz) {
1f70b087
LP		 1847 log_error("Size out of range.");
1848 return -E2BIG;
1849 }
1850
59f448cf 1851 arg_snaplen = (size_t) sz;
1f70b087
LP		 1852 break;
1853 }
1854
d9130355
LP		 1855 case ARG_LIST:
1856 arg_list = true;
1857 break;
1858
d75edbd6
LP		 1859 case 'H':
1860 arg_transport = BUS_TRANSPORT_REMOTE;
1861 arg_host = optarg;
1862 break;
1863
1864 case 'M':
de33fc62 1865 arg_transport = BUS_TRANSPORT_MACHINE;
d75edbd6
LP		 1866 arg_host = optarg;
1867 break;
1868
781fa938
LP		 1869 case 'q':
1870 arg_quiet = true;
1871 break;
1872
1fc55609
LP		 1873 case ARG_VERBOSE:
1874 arg_verbose = true;
1875 break;
1876
38051578
LP		 1877 case ARG_EXPECT_REPLY:
1878 r = parse_boolean(optarg);
1879 if (r < 0) {
1880 log_error("Failed to parse --expect-reply= parameter.");
1881 return r;
1882 }
1883
1884 arg_expect_reply = !!r;
1885 break;
1886
1887
1888 case ARG_AUTO_START:
1889 r = parse_boolean(optarg);
1890 if (r < 0) {
1891 log_error("Failed to parse --auto-start= parameter.");
1892 return r;
1893 }
1894
1895 arg_auto_start = !!r;
1896 break;
1897
1898
1899 case ARG_ALLOW_INTERACTIVE_AUTHORIZATION:
1900 r = parse_boolean(optarg);
1901 if (r < 0) {
1902 log_error("Failed to parse --allow-interactive-authorization= parameter.");
1903 return r;
1904 }
1905
1906 arg_allow_interactive_authorization = !!r;
1907 break;
1908
a44b1081
LP		 1909 case ARG_TIMEOUT:
1910 r = parse_sec(optarg, &arg_timeout);
1911 if (r < 0) {
1912 log_error("Failed to parse --timeout= parameter.");
1913 return r;
1914 }
1915
1916 break;
1917
40ed1a45
LP		 1918 case ARG_AUGMENT_CREDS:
1919 r = parse_boolean(optarg);
1920 if (r < 0) {
1921 log_error("Failed to parse --augment-creds= parameter.");
1922 return r;
1923 }
1924
1925 arg_augment_creds = !!r;
1926 break;
1927
1f849790
LP		 1928 case '?':
1929 return -EINVAL;
1930
1931 default:
eb9da376 1932 assert_not_reached("Unhandled option");
1f849790 1933 }
1f849790
LP		 1934
1935 return 1;
1936}
1937
1938static int busctl_main(sd_bus *bus, int argc, char *argv[]) {
1939 assert(bus);
1940
1941 if (optind >= argc ||
1942 streq(argv[optind], "list"))
1943 return list_bus_names(bus, argv + optind);
1944
1945 if (streq(argv[optind], "monitor"))
1f70b087
LP		 1946 return monitor(bus, argv + optind, message_dump);
1947
1948 if (streq(argv[optind], "capture"))
1949 return capture(bus, argv + optind);
1f849790 1950
95c4fe82
LP		 1951 if (streq(argv[optind], "status"))
1952 return status(bus, argv + optind);
d9130355
LP		 1953
1954 if (streq(argv[optind], "tree"))
1955 return tree(bus, argv + optind);
781fa938 1956
0171da06
LP		 1957 if (streq(argv[optind], "introspect"))
1958 return introspect(bus, argv + optind);
1959
781fa938
LP		 1960 if (streq(argv[optind], "call"))
1961 return call(bus, argv + optind);
d55192ad
LP		 1962
1963 if (streq(argv[optind], "get-property"))
1964 return get_property(bus, argv + optind);
95c4fe82 1965
1fc55609
LP		 1966 if (streq(argv[optind], "set-property"))
1967 return set_property(bus, argv + optind);
1968
1f849790
LP		 1969 if (streq(argv[optind], "help"))
1970 return help();
1971
1972 log_error("Unknown command '%s'", argv[optind]);
1973 return -EINVAL;
1974}
1975
1976int main(int argc, char *argv[]) {
4afd3348 1977 _cleanup_(sd_bus_flush_close_unrefp) sd_bus *bus = NULL;
1f849790
LP		 1978 int r;
1979
1980 log_parse_environment();
1981 log_open();
1982
1983 r = parse_argv(argc, argv);
1984 if (r <= 0)
1985 goto finish;
1986
09365592
LP		 1987 r = sd_bus_new(&bus);
1988 if (r < 0) {
da927ba9 1989 log_error_errno(r, "Failed to allocate bus: %m");
09365592
LP		 1990 goto finish;
1991 }
1992
1f70b087
LP		 1993 if (streq_ptr(argv[optind], "monitor") ||
1994 streq_ptr(argv[optind], "capture")) {
09365592
LP		 1995
1996 r = sd_bus_set_monitor(bus, true);
1f849790 1997 if (r < 0) {
da927ba9 1998 log_error_errno(r, "Failed to set monitor mode: %m");
1f849790
LP		 1999 goto finish;
2000 }
d0ce7734 2001
b5dae4c7 2002 r = sd_bus_negotiate_creds(bus, true, _SD_BUS_CREDS_ALL);
d0ce7734 2003 if (r < 0) {
da927ba9 2004 log_error_errno(r, "Failed to enable credentials: %m");
d0ce7734
LP		 2005 goto finish;
2006 }
2007
2008 r = sd_bus_negotiate_timestamp(bus, true);
2009 if (r < 0) {
da927ba9 2010 log_error_errno(r, "Failed to enable timestamps: %m");
d0ce7734
LP		 2011 goto finish;
2012 }
2013
2014 r = sd_bus_negotiate_fds(bus, true);
2015 if (r < 0) {
da927ba9 2016 log_error_errno(r, "Failed to enable fds: %m");
d0ce7734
LP		 2017 goto finish;
2018 }
09365592 2019 }
1f849790 2020
8d87d4a9
DH		 2021 r = sd_bus_set_bus_client(bus, true);
2022 if (r < 0) {
2023 log_error_errno(r, "Failed to set bus client: %m");
2024 goto finish;
2025 }
2026
09365592 2027 if (arg_address)
1f849790 2028 r = sd_bus_set_address(bus, arg_address);
09365592
LP		 2029 else {
2030 switch (arg_transport) {
1f849790 2031
09365592 2032 case BUS_TRANSPORT_LOCAL:
3acc1daf
LP		 2033 if (arg_user) {
2034 bus->is_user = true;
09365592 2035 r = bus_set_address_user(bus);
3acc1daf
LP		 2036 } else {
2037 bus->is_system = true;
09365592 2038 r = bus_set_address_system(bus);
3acc1daf 2039 }
09365592
LP		 2040 break;
2041
2042 case BUS_TRANSPORT_REMOTE:
2043 r = bus_set_address_system_remote(bus, arg_host);
2044 break;
2045
de33fc62
LP		 2046 case BUS_TRANSPORT_MACHINE:
2047 r = bus_set_address_system_machine(bus, arg_host);
09365592
LP		 2048 break;
2049
2050 default:
2051 assert_not_reached("Hmm, unknown transport type.");
1f849790 2052 }
09365592
LP		 2053 }
2054 if (r < 0) {
da927ba9 2055 log_error_errno(r, "Failed to set address: %m");
09365592
LP		 2056 goto finish;
2057 }
1f849790 2058
09365592 2059 r = sd_bus_start(bus);
1f849790 2060 if (r < 0) {
da927ba9 2061 log_error_errno(r, "Failed to connect to bus: %m");
1f849790
LP		 2062 goto finish;
2063 }
2064
2065 r = busctl_main(bus, argc, argv);
2066
2067finish:
2068 pager_close();
d75edbd6 2069
1f849790 2070 strv_free(arg_matches);
de1c301e 2071
de1c301e
LP		 2072 return r < 0 ? EXIT_FAILURE : EXIT_SUCCESS;
2073}
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