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Merge pull request #18990 from yuwata/network-dhcpv6-use-domains
[thirdparty/systemd.git] / src / resolve / resolvectl.c
1 /* SPDX-License-Identifier: LGPL-2.1-or-later */
2
3 #include <getopt.h>
4 #include <locale.h>
5 #include <net/if.h>
6
7 #include "sd-bus.h"
8 #include "sd-netlink.h"
9
10 #include "af-list.h"
11 #include "alloc-util.h"
12 #include "bus-common-errors.h"
13 #include "bus-error.h"
14 #include "bus-locator.h"
15 #include "bus-map-properties.h"
16 #include "bus-message-util.h"
17 #include "dns-domain.h"
18 #include "escape.h"
19 #include "format-table.h"
20 #include "format-util.h"
21 #include "gcrypt-util.h"
22 #include "hostname-util.h"
23 #include "main-func.h"
24 #include "missing_network.h"
25 #include "netlink-util.h"
26 #include "pager.h"
27 #include "parse-argument.h"
28 #include "parse-util.h"
29 #include "pretty-print.h"
30 #include "process-util.h"
31 #include "resolvconf-compat.h"
32 #include "resolvectl.h"
33 #include "resolved-def.h"
34 #include "resolved-dns-packet.h"
35 #include "resolved-util.h"
36 #include "socket-netlink.h"
37 #include "sort-util.h"
38 #include "stdio-util.h"
39 #include "string-table.h"
40 #include "strv.h"
41 #include "terminal-util.h"
42 #include "utf8.h"
43 #include "verbs.h"
44
45 static int arg_family = AF_UNSPEC;
46 static int arg_ifindex = 0;
47 static char *arg_ifname = NULL;
48 static uint16_t arg_type = 0;
49 static uint16_t arg_class = 0;
50 static bool arg_legend = true;
51 static uint64_t arg_flags = 0;
52 static PagerFlags arg_pager_flags = 0;
53 bool arg_ifindex_permissive = false; /* If true, don't generate an error if the specified interface index doesn't exist */
54 static const char *arg_service_family = NULL;
55
56 typedef enum RawType {
57 RAW_NONE,
58 RAW_PAYLOAD,
59 RAW_PACKET,
60 } RawType;
61 static RawType arg_raw = RAW_NONE;
62
63 ExecutionMode arg_mode = MODE_RESOLVE_HOST;
64
65 char **arg_set_dns = NULL;
66 char **arg_set_domain = NULL;
67 static const char *arg_set_llmnr = NULL;
68 static const char *arg_set_mdns = NULL;
69 static const char *arg_set_dns_over_tls = NULL;
70 static const char *arg_set_dnssec = NULL;
71 static char **arg_set_nta = NULL;
72
73 STATIC_DESTRUCTOR_REGISTER(arg_ifname, freep);
74 STATIC_DESTRUCTOR_REGISTER(arg_set_dns, strv_freep);
75 STATIC_DESTRUCTOR_REGISTER(arg_set_domain, strv_freep);
76 STATIC_DESTRUCTOR_REGISTER(arg_set_nta, strv_freep);
77
78 typedef enum StatusMode {
79 STATUS_ALL,
80 STATUS_DNS,
81 STATUS_DOMAIN,
82 STATUS_DEFAULT_ROUTE,
83 STATUS_LLMNR,
84 STATUS_MDNS,
85 STATUS_PRIVATE,
86 STATUS_DNSSEC,
87 STATUS_NTA,
88 } StatusMode;
89
90 typedef struct InterfaceInfo {
91 int index;
92 const char *name;
93 } InterfaceInfo;
94
95 static int interface_info_compare(const InterfaceInfo *a, const InterfaceInfo *b) {
96 int r;
97
98 r = CMP(a->index, b->index);
99 if (r != 0)
100 return r;
101
102 return strcmp_ptr(a->name, b->name);
103 }
104
105 int ifname_mangle(const char *s) {
106 _cleanup_free_ char *iface = NULL;
107 const char *dot;
108 int ifi;
109
110 assert(s);
111
112 dot = strchr(s, '.');
113 if (dot) {
114 log_debug("Ignoring protocol specifier '%s'.", dot + 1);
115 iface = strndup(s, dot - s);
116
117 } else
118 iface = strdup(s);
119 if (!iface)
120 return log_oom();
121
122 ifi = resolve_interface(NULL, iface);
123 if (ifi < 0) {
124 if (ifi == -ENODEV && arg_ifindex_permissive) {
125 log_debug("Interface '%s' not found, but -f specified, ignoring.", iface);
126 return 0; /* done */
127 }
128
129 return log_error_errno(ifi, "Failed to resolve interface \"%s\": %m", iface);
130 }
131
132 if (arg_ifindex > 0 && arg_ifindex != ifi)
133 return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "Specified multiple different interfaces. Refusing.");
134
135 arg_ifindex = ifi;
136 free_and_replace(arg_ifname, iface);
137
138 return 1;
139 }
140
141 static void print_source(uint64_t flags, usec_t rtt) {
142 char rtt_str[FORMAT_TIMESTAMP_MAX];
143
144 if (!arg_legend)
145 return;
146
147 if (flags == 0)
148 return;
149
150 printf("\n%s-- Information acquired via", ansi_grey());
151
152 printf(" protocol%s%s%s%s%s",
153 flags & SD_RESOLVED_DNS ? " DNS" :"",
154 flags & SD_RESOLVED_LLMNR_IPV4 ? " LLMNR/IPv4" : "",
155 flags & SD_RESOLVED_LLMNR_IPV6 ? " LLMNR/IPv6" : "",
156 flags & SD_RESOLVED_MDNS_IPV4 ? " mDNS/IPv4" : "",
157 flags & SD_RESOLVED_MDNS_IPV6 ? " mDNS/IPv6" : "");
158
159 assert_se(format_timespan(rtt_str, sizeof(rtt_str), rtt, 100));
160
161 printf(" in %s.%s\n"
162 "%s-- Data is authenticated: %s; Data was acquired via local or encrypted transport: %s%s\n",
163 rtt_str, ansi_normal(),
164 ansi_grey(),
165 yes_no(flags & SD_RESOLVED_AUTHENTICATED),
166 yes_no(flags & SD_RESOLVED_CONFIDENTIAL),
167 ansi_normal());
168
169 if ((flags & (SD_RESOLVED_FROM_MASK|SD_RESOLVED_SYNTHETIC)) != 0)
170 printf("%s-- Data from:%s%s%s%s%s%s\n",
171 ansi_grey(),
172 FLAGS_SET(flags, SD_RESOLVED_SYNTHETIC) ? " synthetic" : "",
173 FLAGS_SET(flags, SD_RESOLVED_FROM_CACHE) ? " cache" : "",
174 FLAGS_SET(flags, SD_RESOLVED_FROM_ZONE) ? " zone" : "",
175 FLAGS_SET(flags, SD_RESOLVED_FROM_TRUST_ANCHOR) ? " trust-anchor" : "",
176 FLAGS_SET(flags, SD_RESOLVED_FROM_NETWORK) ? " network" : "",
177 ansi_normal());
178 }
179
180 static void print_ifindex_comment(int printed_so_far, int ifindex) {
181 char ifname[IF_NAMESIZE + 1];
182
183 if (ifindex <= 0)
184 return;
185
186 if (!format_ifname(ifindex, ifname))
187 log_warning_errno(errno, "Failed to resolve interface name for index %i, ignoring: %m", ifindex);
188 else
189 printf("%*s%s-- link: %s%s",
190 60 > printed_so_far ? 60 - printed_so_far : 0, " ", /* Align comment to the 60th column */
191 ansi_grey(), ifname, ansi_normal());
192 }
193
194 static int resolve_host(sd_bus *bus, const char *name) {
195 _cleanup_(sd_bus_message_unrefp) sd_bus_message *req = NULL, *reply = NULL;
196 _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
197 const char *canonical = NULL;
198 unsigned c = 0;
199 uint64_t flags;
200 usec_t ts;
201 int r;
202
203 assert(name);
204
205 log_debug("Resolving %s (family %s, interface %s).", name, af_to_name(arg_family) ?: "*", isempty(arg_ifname) ? "*" : arg_ifname);
206
207 r = bus_message_new_method_call(bus, &req, bus_resolve_mgr, "ResolveHostname");
208 if (r < 0)
209 return bus_log_create_error(r);
210
211 r = sd_bus_message_append(req, "isit", arg_ifindex, name, arg_family, arg_flags);
212 if (r < 0)
213 return bus_log_create_error(r);
214
215 ts = now(CLOCK_MONOTONIC);
216
217 r = sd_bus_call(bus, req, SD_RESOLVED_QUERY_TIMEOUT_USEC, &error, &reply);
218 if (r < 0)
219 return log_error_errno(r, "%s: resolve call failed: %s", name, bus_error_message(&error, r));
220
221 ts = now(CLOCK_MONOTONIC) - ts;
222
223 r = sd_bus_message_enter_container(reply, 'a', "(iiay)");
224 if (r < 0)
225 return bus_log_parse_error(r);
226
227 while ((r = sd_bus_message_enter_container(reply, 'r', "iiay")) > 0) {
228 _cleanup_free_ char *pretty = NULL;
229 int ifindex, family, k;
230 union in_addr_union a;
231
232 assert_cc(sizeof(int) == sizeof(int32_t));
233
234 r = sd_bus_message_read(reply, "i", &ifindex);
235 if (r < 0)
236 return bus_log_parse_error(r);
237
238 sd_bus_error_free(&error);
239 r = bus_message_read_in_addr_auto(reply, &error, &family, &a);
240 if (r < 0 && !sd_bus_error_has_name(&error, SD_BUS_ERROR_INVALID_ARGS))
241 return log_error_errno(r, "%s: systemd-resolved returned invalid result: %s", name, bus_error_message(&error, r));
242
243 r = sd_bus_message_exit_container(reply);
244 if (r < 0)
245 return bus_log_parse_error(r);
246
247 if (sd_bus_error_has_name(&error, SD_BUS_ERROR_INVALID_ARGS)) {
248 log_debug_errno(r, "%s: systemd-resolved returned invalid result, ignoring: %s", name, bus_error_message(&error, r));
249 continue;
250 }
251
252 r = in_addr_ifindex_to_string(family, &a, ifindex, &pretty);
253 if (r < 0)
254 return log_error_errno(r, "Failed to print address for %s: %m", name);
255
256 k = printf("%*s%s %s%s%s",
257 (int) strlen(name), c == 0 ? name : "", c == 0 ? ":" : " ",
258 ansi_highlight(), pretty, ansi_normal());
259
260 print_ifindex_comment(k, ifindex);
261 fputc('\n', stdout);
262
263 c++;
264 }
265 if (r < 0)
266 return bus_log_parse_error(r);
267
268 r = sd_bus_message_exit_container(reply);
269 if (r < 0)
270 return bus_log_parse_error(r);
271
272 r = sd_bus_message_read(reply, "st", &canonical, &flags);
273 if (r < 0)
274 return bus_log_parse_error(r);
275
276 if (!streq(name, canonical))
277 printf("%*s%s (%s)\n",
278 (int) strlen(name), c == 0 ? name : "", c == 0 ? ":" : " ",
279 canonical);
280
281 if (c == 0)
282 return log_error_errno(SYNTHETIC_ERRNO(ESRCH),
283 "%s: no addresses found", name);
284
285 print_source(flags, ts);
286
287 return 0;
288 }
289
290 static int resolve_address(sd_bus *bus, int family, const union in_addr_union *address, int ifindex) {
291 _cleanup_(sd_bus_message_unrefp) sd_bus_message *req = NULL, *reply = NULL;
292 _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
293 _cleanup_free_ char *pretty = NULL;
294 uint64_t flags;
295 unsigned c = 0;
296 usec_t ts;
297 int r;
298
299 assert(bus);
300 assert(IN_SET(family, AF_INET, AF_INET6));
301 assert(address);
302
303 if (ifindex <= 0)
304 ifindex = arg_ifindex;
305
306 r = in_addr_ifindex_to_string(family, address, ifindex, &pretty);
307 if (r < 0)
308 return log_oom();
309
310 log_debug("Resolving %s.", pretty);
311
312 r = bus_message_new_method_call(bus, &req, bus_resolve_mgr, "ResolveAddress");
313 if (r < 0)
314 return bus_log_create_error(r);
315
316 r = sd_bus_message_append(req, "ii", ifindex, family);
317 if (r < 0)
318 return bus_log_create_error(r);
319
320 r = sd_bus_message_append_array(req, 'y', address, FAMILY_ADDRESS_SIZE(family));
321 if (r < 0)
322 return bus_log_create_error(r);
323
324 r = sd_bus_message_append(req, "t", arg_flags);
325 if (r < 0)
326 return bus_log_create_error(r);
327
328 ts = now(CLOCK_MONOTONIC);
329
330 r = sd_bus_call(bus, req, SD_RESOLVED_QUERY_TIMEOUT_USEC, &error, &reply);
331 if (r < 0)
332 return log_error_errno(r, "%s: resolve call failed: %s", pretty, bus_error_message(&error, r));
333
334 ts = now(CLOCK_MONOTONIC) - ts;
335
336 r = sd_bus_message_enter_container(reply, 'a', "(is)");
337 if (r < 0)
338 return bus_log_create_error(r);
339
340 while ((r = sd_bus_message_enter_container(reply, 'r', "is")) > 0) {
341 const char *n;
342 int k;
343
344 assert_cc(sizeof(int) == sizeof(int32_t));
345
346 r = sd_bus_message_read(reply, "is", &ifindex, &n);
347 if (r < 0)
348 return r;
349
350 r = sd_bus_message_exit_container(reply);
351 if (r < 0)
352 return r;
353
354 k = printf("%*s%s %s%s%s",
355 (int) strlen(pretty), c == 0 ? pretty : "",
356 c == 0 ? ":" : " ",
357 ansi_highlight(), n, ansi_normal());
358
359 print_ifindex_comment(k, ifindex);
360 fputc('\n', stdout);
361
362 c++;
363 }
364 if (r < 0)
365 return bus_log_parse_error(r);
366
367 r = sd_bus_message_exit_container(reply);
368 if (r < 0)
369 return bus_log_parse_error(r);
370
371 r = sd_bus_message_read(reply, "t", &flags);
372 if (r < 0)
373 return bus_log_parse_error(r);
374
375 if (c == 0)
376 return log_error_errno(SYNTHETIC_ERRNO(ESRCH),
377 "%s: no names found", pretty);
378
379 print_source(flags, ts);
380
381 return 0;
382 }
383
384 static int output_rr_packet(const void *d, size_t l, int ifindex) {
385 _cleanup_(dns_resource_record_unrefp) DnsResourceRecord *rr = NULL;
386 _cleanup_(dns_packet_unrefp) DnsPacket *p = NULL;
387 int r;
388
389 r = dns_packet_new(&p, DNS_PROTOCOL_DNS, 0, DNS_PACKET_SIZE_MAX);
390 if (r < 0)
391 return log_oom();
392
393 p->refuse_compression = true;
394
395 r = dns_packet_append_blob(p, d, l, NULL);
396 if (r < 0)
397 return log_oom();
398
399 r = dns_packet_read_rr(p, &rr, NULL, NULL);
400 if (r < 0)
401 return log_error_errno(r, "Failed to parse RR: %m");
402
403 if (arg_raw == RAW_PAYLOAD) {
404 void *data;
405 ssize_t k;
406
407 k = dns_resource_record_payload(rr, &data);
408 if (k < 0)
409 return log_error_errno(k, "Cannot dump RR: %m");
410 fwrite(data, 1, k, stdout);
411 } else {
412 const char *s;
413 int k;
414
415 s = dns_resource_record_to_string(rr);
416 if (!s)
417 return log_oom();
418
419 k = printf("%s", s);
420 print_ifindex_comment(k, ifindex);
421 fputc('\n', stdout);
422 }
423
424 return 0;
425 }
426
427 static int idna_candidate(const char *name, char **ret) {
428 _cleanup_free_ char *idnafied = NULL;
429 int r;
430
431 assert(name);
432 assert(ret);
433
434 r = dns_name_apply_idna(name, &idnafied);
435 if (r < 0)
436 return log_error_errno(r, "Failed to apply IDNA to name '%s': %m", name);
437 if (r > 0 && !streq(name, idnafied)) {
438 *ret = TAKE_PTR(idnafied);
439 return true;
440 }
441
442 *ret = NULL;
443 return false;
444 }
445
446 static bool single_label_nonsynthetic(const char *name) {
447 _cleanup_free_ char *first_label = NULL;
448 int r;
449
450 if (!dns_name_is_single_label(name))
451 return false;
452
453 if (is_localhost(name) || is_gateway_hostname(name))
454 return false;
455
456 r = resolve_system_hostname(NULL, &first_label);
457 if (r < 0) {
458 log_warning_errno(r, "Failed to determine the hostname: %m");
459 return false;
460 }
461
462 return !streq(name, first_label);
463 }
464
465 static int resolve_record(sd_bus *bus, const char *name, uint16_t class, uint16_t type, bool warn_missing) {
466 _cleanup_(sd_bus_message_unrefp) sd_bus_message *req = NULL, *reply = NULL;
467 _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
468 _cleanup_free_ char *idnafied = NULL;
469 bool needs_authentication = false;
470 unsigned n = 0;
471 uint64_t flags;
472 usec_t ts;
473 int r;
474
475 assert(name);
476
477 log_debug("Resolving %s %s %s (interface %s).", name, dns_class_to_string(class), dns_type_to_string(type), isempty(arg_ifname) ? "*" : arg_ifname);
478
479 if (dns_name_dot_suffixed(name) == 0 && single_label_nonsynthetic(name))
480 log_notice("(Note that search domains are not appended when --type= is specified. "
481 "Please specify fully qualified domain names, or remove --type= switch from invocation in order to request regular hostname resolution.)");
482
483 r = idna_candidate(name, &idnafied);
484 if (r < 0)
485 return r;
486 if (r > 0)
487 log_notice("(Note that IDNA translation is not applied when --type= is specified. "
488 "Please specify translated domain names — i.e. '%s' — when resolving raw records, or remove --type= switch from invocation in order to request regular hostname resolution.",
489 idnafied);
490
491 r = bus_message_new_method_call(bus, &req, bus_resolve_mgr, "ResolveRecord");
492 if (r < 0)
493 return bus_log_create_error(r);
494
495 r = sd_bus_message_append(req, "isqqt", arg_ifindex, name, class, type, arg_flags);
496 if (r < 0)
497 return bus_log_create_error(r);
498
499 ts = now(CLOCK_MONOTONIC);
500
501 r = sd_bus_call(bus, req, SD_RESOLVED_QUERY_TIMEOUT_USEC, &error, &reply);
502 if (r < 0) {
503 if (warn_missing || r != -ENXIO)
504 log_error("%s: resolve call failed: %s", name, bus_error_message(&error, r));
505 return r;
506 }
507
508 ts = now(CLOCK_MONOTONIC) - ts;
509
510 r = sd_bus_message_enter_container(reply, 'a', "(iqqay)");
511 if (r < 0)
512 return bus_log_parse_error(r);
513
514 while ((r = sd_bus_message_enter_container(reply, 'r', "iqqay")) > 0) {
515 uint16_t c, t;
516 int ifindex;
517 const void *d;
518 size_t l;
519
520 assert_cc(sizeof(int) == sizeof(int32_t));
521
522 r = sd_bus_message_read(reply, "iqq", &ifindex, &c, &t);
523 if (r < 0)
524 return bus_log_parse_error(r);
525
526 r = sd_bus_message_read_array(reply, 'y', &d, &l);
527 if (r < 0)
528 return bus_log_parse_error(r);
529
530 r = sd_bus_message_exit_container(reply);
531 if (r < 0)
532 return bus_log_parse_error(r);
533
534 if (arg_raw == RAW_PACKET) {
535 uint64_t u64 = htole64(l);
536
537 fwrite(&u64, sizeof(u64), 1, stdout);
538 fwrite(d, 1, l, stdout);
539 } else {
540 r = output_rr_packet(d, l, ifindex);
541 if (r < 0)
542 return r;
543 }
544
545 if (dns_type_needs_authentication(t))
546 needs_authentication = true;
547
548 n++;
549 }
550 if (r < 0)
551 return bus_log_parse_error(r);
552
553 r = sd_bus_message_exit_container(reply);
554 if (r < 0)
555 return bus_log_parse_error(r);
556
557 r = sd_bus_message_read(reply, "t", &flags);
558 if (r < 0)
559 return bus_log_parse_error(r);
560
561 if (n == 0) {
562 if (warn_missing)
563 log_error("%s: no records found", name);
564 return -ESRCH;
565 }
566
567 print_source(flags, ts);
568
569 if ((flags & SD_RESOLVED_AUTHENTICATED) == 0 && needs_authentication) {
570 fflush(stdout);
571
572 fprintf(stderr, "\n%s"
573 "WARNING: The resources shown contain cryptographic key data which could not be\n"
574 " authenticated. It is not suitable to authenticate any communication.\n"
575 " This is usually indication that DNSSEC authentication was not enabled\n"
576 " or is not available for the selected protocol or DNS servers.%s\n",
577 ansi_highlight_red(),
578 ansi_normal());
579 }
580
581 return 0;
582 }
583
584 static int resolve_rfc4501(sd_bus *bus, const char *name) {
585 uint16_t type = 0, class = 0;
586 const char *p, *q, *n;
587 int r;
588
589 assert(bus);
590 assert(name);
591 assert(startswith(name, "dns:"));
592
593 /* Parse RFC 4501 dns: URIs */
594
595 p = name + 4;
596
597 if (p[0] == '/') {
598 const char *e;
599
600 if (p[1] != '/')
601 goto invalid;
602
603 e = strchr(p + 2, '/');
604 if (!e)
605 goto invalid;
606
607 if (e != p + 2)
608 log_warning("DNS authority specification not supported; ignoring specified authority.");
609
610 p = e + 1;
611 }
612
613 q = strchr(p, '?');
614 if (q) {
615 n = strndupa(p, q - p);
616 q++;
617
618 for (;;) {
619 const char *f;
620
621 f = startswith_no_case(q, "class=");
622 if (f) {
623 _cleanup_free_ char *t = NULL;
624 const char *e;
625
626 if (class != 0)
627 return log_error_errno(SYNTHETIC_ERRNO(EINVAL),
628 "DNS class specified twice.");
629
630 e = strchrnul(f, ';');
631 t = strndup(f, e - f);
632 if (!t)
633 return log_oom();
634
635 r = dns_class_from_string(t);
636 if (r < 0)
637 return log_error_errno(r, "Unknown DNS class %s.", t);
638
639 class = r;
640
641 if (*e == ';') {
642 q = e + 1;
643 continue;
644 }
645
646 break;
647 }
648
649 f = startswith_no_case(q, "type=");
650 if (f) {
651 _cleanup_free_ char *t = NULL;
652 const char *e;
653
654 if (type != 0)
655 return log_error_errno(SYNTHETIC_ERRNO(EINVAL),
656 "DNS type specified twice.");
657
658 e = strchrnul(f, ';');
659 t = strndup(f, e - f);
660 if (!t)
661 return log_oom();
662
663 r = dns_type_from_string(t);
664 if (r < 0)
665 return log_error_errno(r, "Unknown DNS type %s: %m", t);
666
667 type = r;
668
669 if (*e == ';') {
670 q = e + 1;
671 continue;
672 }
673
674 break;
675 }
676
677 goto invalid;
678 }
679 } else
680 n = p;
681
682 if (class == 0)
683 class = arg_class ?: DNS_CLASS_IN;
684 if (type == 0)
685 type = arg_type ?: DNS_TYPE_A;
686
687 return resolve_record(bus, n, class, type, true);
688
689 invalid:
690 return log_error_errno(SYNTHETIC_ERRNO(EINVAL),
691 "Invalid DNS URI: %s", name);
692 }
693
694 static int verb_query(int argc, char **argv, void *userdata) {
695 sd_bus *bus = userdata;
696 char **p;
697 int q, r = 0;
698
699 if (arg_type != 0)
700 STRV_FOREACH(p, argv + 1) {
701 q = resolve_record(bus, *p, arg_class, arg_type, true);
702 if (q < 0)
703 r = q;
704 }
705
706 else
707 STRV_FOREACH(p, argv + 1) {
708 if (startswith(*p, "dns:"))
709 q = resolve_rfc4501(bus, *p);
710 else {
711 int family, ifindex;
712 union in_addr_union a;
713
714 q = in_addr_ifindex_from_string_auto(*p, &family, &a, &ifindex);
715 if (q >= 0)
716 q = resolve_address(bus, family, &a, ifindex);
717 else
718 q = resolve_host(bus, *p);
719 }
720 if (q < 0)
721 r = q;
722 }
723
724 return r;
725 }
726
727 static int resolve_service(sd_bus *bus, const char *name, const char *type, const char *domain) {
728 const char *canonical_name, *canonical_type, *canonical_domain;
729 _cleanup_(sd_bus_message_unrefp) sd_bus_message *req = NULL, *reply = NULL;
730 _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
731 size_t indent, sz;
732 uint64_t flags;
733 const char *p;
734 unsigned c;
735 usec_t ts;
736 int r;
737
738 assert(bus);
739 assert(domain);
740
741 name = empty_to_null(name);
742 type = empty_to_null(type);
743
744 if (name)
745 log_debug("Resolving service \"%s\" of type %s in %s (family %s, interface %s).", name, type, domain, af_to_name(arg_family) ?: "*", isempty(arg_ifname) ? "*" : arg_ifname);
746 else if (type)
747 log_debug("Resolving service type %s of %s (family %s, interface %s).", type, domain, af_to_name(arg_family) ?: "*", isempty(arg_ifname) ? "*" : arg_ifname);
748 else
749 log_debug("Resolving service type %s (family %s, interface %s).", domain, af_to_name(arg_family) ?: "*", isempty(arg_ifname) ? "*" : arg_ifname);
750
751 r = bus_message_new_method_call(bus, &req, bus_resolve_mgr, "ResolveService");
752 if (r < 0)
753 return bus_log_create_error(r);
754
755 r = sd_bus_message_append(req, "isssit", arg_ifindex, name, type, domain, arg_family, arg_flags);
756 if (r < 0)
757 return bus_log_create_error(r);
758
759 ts = now(CLOCK_MONOTONIC);
760
761 r = sd_bus_call(bus, req, SD_RESOLVED_QUERY_TIMEOUT_USEC, &error, &reply);
762 if (r < 0)
763 return log_error_errno(r, "Resolve call failed: %s", bus_error_message(&error, r));
764
765 ts = now(CLOCK_MONOTONIC) - ts;
766
767 r = sd_bus_message_enter_container(reply, 'a', "(qqqsa(iiay)s)");
768 if (r < 0)
769 return bus_log_parse_error(r);
770
771 indent =
772 (name ? strlen(name) + 1 : 0) +
773 (type ? strlen(type) + 1 : 0) +
774 strlen(domain) + 2;
775
776 c = 0;
777 while ((r = sd_bus_message_enter_container(reply, 'r', "qqqsa(iiay)s")) > 0) {
778 uint16_t priority, weight, port;
779 const char *hostname, *canonical;
780
781 r = sd_bus_message_read(reply, "qqqs", &priority, &weight, &port, &hostname);
782 if (r < 0)
783 return bus_log_parse_error(r);
784
785 if (name)
786 printf("%*s%s", (int) strlen(name), c == 0 ? name : "", c == 0 ? "/" : " ");
787 if (type)
788 printf("%*s%s", (int) strlen(type), c == 0 ? type : "", c == 0 ? "/" : " ");
789
790 printf("%*s%s %s:%u [priority=%u, weight=%u]\n",
791 (int) strlen(domain), c == 0 ? domain : "",
792 c == 0 ? ":" : " ",
793 hostname, port,
794 priority, weight);
795
796 r = sd_bus_message_enter_container(reply, 'a', "(iiay)");
797 if (r < 0)
798 return bus_log_parse_error(r);
799
800 while ((r = sd_bus_message_enter_container(reply, 'r', "iiay")) > 0) {
801 _cleanup_free_ char *pretty = NULL;
802 int ifindex, family, k;
803 union in_addr_union a;;
804
805 assert_cc(sizeof(int) == sizeof(int32_t));
806
807 r = sd_bus_message_read(reply, "i", &ifindex);
808 if (r < 0)
809 return bus_log_parse_error(r);
810
811 sd_bus_error_free(&error);
812 r = bus_message_read_in_addr_auto(reply, &error, &family, &a);
813 if (r < 0 && !sd_bus_error_has_name(&error, SD_BUS_ERROR_INVALID_ARGS))
814 return log_error_errno(r, "%s: systemd-resolved returned invalid result: %s", name, bus_error_message(&error, r));
815
816 r = sd_bus_message_exit_container(reply);
817 if (r < 0)
818 return bus_log_parse_error(r);
819
820 if (sd_bus_error_has_name(&error, SD_BUS_ERROR_INVALID_ARGS)) {
821 log_debug_errno(r, "%s: systemd-resolved returned invalid result, ignoring: %s", name, bus_error_message(&error, r));
822 continue;
823 }
824
825 r = in_addr_ifindex_to_string(family, &a, ifindex, &pretty);
826 if (r < 0)
827 return log_error_errno(r, "Failed to print address for %s: %m", name);
828
829 k = printf("%*s%s", (int) indent, "", pretty);
830 print_ifindex_comment(k, ifindex);
831 fputc('\n', stdout);
832 }
833 if (r < 0)
834 return bus_log_parse_error(r);
835
836 r = sd_bus_message_exit_container(reply);
837 if (r < 0)
838 return bus_log_parse_error(r);
839
840 r = sd_bus_message_read(reply, "s", &canonical);
841 if (r < 0)
842 return bus_log_parse_error(r);
843
844 if (!streq(hostname, canonical))
845 printf("%*s(%s)\n", (int) indent, "", canonical);
846
847 r = sd_bus_message_exit_container(reply);
848 if (r < 0)
849 return bus_log_parse_error(r);
850
851 c++;
852 }
853 if (r < 0)
854 return bus_log_parse_error(r);
855
856 r = sd_bus_message_exit_container(reply);
857 if (r < 0)
858 return bus_log_parse_error(r);
859
860 r = sd_bus_message_enter_container(reply, 'a', "ay");
861 if (r < 0)
862 return bus_log_parse_error(r);
863
864 while ((r = sd_bus_message_read_array(reply, 'y', (const void**) &p, &sz)) > 0) {
865 _cleanup_free_ char *escaped = NULL;
866
867 escaped = cescape_length(p, sz);
868 if (!escaped)
869 return log_oom();
870
871 printf("%*s%s\n", (int) indent, "", escaped);
872 }
873 if (r < 0)
874 return bus_log_parse_error(r);
875
876 r = sd_bus_message_exit_container(reply);
877 if (r < 0)
878 return bus_log_parse_error(r);
879
880 r = sd_bus_message_read(reply, "ssst", &canonical_name, &canonical_type, &canonical_domain, &flags);
881 if (r < 0)
882 return bus_log_parse_error(r);
883
884 canonical_name = empty_to_null(canonical_name);
885 canonical_type = empty_to_null(canonical_type);
886
887 if (!streq_ptr(name, canonical_name) ||
888 !streq_ptr(type, canonical_type) ||
889 !streq_ptr(domain, canonical_domain)) {
890
891 printf("%*s(", (int) indent, "");
892
893 if (canonical_name)
894 printf("%s/", canonical_name);
895 if (canonical_type)
896 printf("%s/", canonical_type);
897
898 printf("%s)\n", canonical_domain);
899 }
900
901 print_source(flags, ts);
902
903 return 0;
904 }
905
906 static int verb_service(int argc, char **argv, void *userdata) {
907 sd_bus *bus = userdata;
908
909 if (argc == 2)
910 return resolve_service(bus, NULL, NULL, argv[1]);
911 else if (argc == 3)
912 return resolve_service(bus, NULL, argv[1], argv[2]);
913 else
914 return resolve_service(bus, argv[1], argv[2], argv[3]);
915 }
916
917 static int resolve_openpgp(sd_bus *bus, const char *address) {
918 const char *domain, *full;
919 int r;
920 _cleanup_free_ char *hashed = NULL;
921
922 assert(bus);
923 assert(address);
924
925 domain = strrchr(address, '@');
926 if (!domain)
927 return log_error_errno(SYNTHETIC_ERRNO(EINVAL),
928 "Address does not contain '@': \"%s\"", address);
929 if (domain == address || domain[1] == '\0')
930 return log_error_errno(SYNTHETIC_ERRNO(EINVAL),
931 "Address starts or ends with '@': \"%s\"", address);
932 domain++;
933
934 r = string_hashsum_sha256(address, domain - 1 - address, &hashed);
935 if (r < 0)
936 return log_error_errno(r, "Hashing failed: %m");
937
938 strshorten(hashed, 56);
939
940 full = strjoina(hashed, "._openpgpkey.", domain);
941 log_debug("Looking up \"%s\".", full);
942
943 r = resolve_record(bus, full,
944 arg_class ?: DNS_CLASS_IN,
945 arg_type ?: DNS_TYPE_OPENPGPKEY, false);
946
947 if (IN_SET(r, -ENXIO, -ESRCH)) { /* NXDOMAIN or NODATA? */
948 hashed = mfree(hashed);
949 r = string_hashsum_sha224(address, domain - 1 - address, &hashed);
950 if (r < 0)
951 return log_error_errno(r, "Hashing failed: %m");
952
953 full = strjoina(hashed, "._openpgpkey.", domain);
954 log_debug("Looking up \"%s\".", full);
955
956 return resolve_record(bus, full,
957 arg_class ?: DNS_CLASS_IN,
958 arg_type ?: DNS_TYPE_OPENPGPKEY, true);
959 }
960
961 return r;
962 }
963
964 static int verb_openpgp(int argc, char **argv, void *userdata) {
965 sd_bus *bus = userdata;
966 char **p;
967 int q, r = 0;
968
969 STRV_FOREACH(p, argv + 1) {
970 q = resolve_openpgp(bus, *p);
971 if (q < 0)
972 r = q;
973 }
974
975 return r;
976 }
977
978 static int resolve_tlsa(sd_bus *bus, const char *family, const char *address) {
979 const char *port;
980 uint16_t port_num = 443;
981 _cleanup_free_ char *full = NULL;
982 int r;
983
984 assert(bus);
985 assert(address);
986
987 port = strrchr(address, ':');
988 if (port) {
989 r = parse_ip_port(port + 1, &port_num);
990 if (r < 0)
991 return log_error_errno(r, "Invalid port \"%s\".", port + 1);
992
993 address = strndupa(address, port - address);
994 }
995
996 r = asprintf(&full, "_%u._%s.%s",
997 port_num,
998 family,
999 address);
1000 if (r < 0)
1001 return log_oom();
1002
1003 log_debug("Looking up \"%s\".", full);
1004
1005 return resolve_record(bus, full,
1006 arg_class ?: DNS_CLASS_IN,
1007 arg_type ?: DNS_TYPE_TLSA, true);
1008 }
1009
1010 static bool service_family_is_valid(const char *s) {
1011 return STR_IN_SET(s, "tcp", "udp", "sctp");
1012 }
1013
1014 static int verb_tlsa(int argc, char **argv, void *userdata) {
1015 sd_bus *bus = userdata;
1016 char **p, **args = argv + 1;
1017 const char *family = "tcp";
1018 int q, r = 0;
1019
1020 if (service_family_is_valid(argv[1])) {
1021 family = argv[1];
1022 args++;
1023 }
1024
1025 STRV_FOREACH(p, args) {
1026 q = resolve_tlsa(bus, family, *p);
1027 if (q < 0)
1028 r = q;
1029 }
1030
1031 return r;
1032 }
1033
1034 static int show_statistics(int argc, char **argv, void *userdata) {
1035 _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
1036 _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL;
1037 _cleanup_(table_unrefp) Table *table = NULL;
1038 sd_bus *bus = userdata;
1039 uint64_t n_current_transactions, n_total_transactions,
1040 cache_size, n_cache_hit, n_cache_miss,
1041 n_dnssec_secure, n_dnssec_insecure, n_dnssec_bogus, n_dnssec_indeterminate;
1042 int r, dnssec_supported;
1043
1044 assert(bus);
1045
1046 r = bus_get_property_trivial(bus, bus_resolve_mgr, "DNSSECSupported", &error, 'b', &dnssec_supported);
1047 if (r < 0)
1048 return log_error_errno(r, "Failed to get DNSSEC supported state: %s", bus_error_message(&error, r));
1049
1050 printf("DNSSEC supported by current servers: %s%s%s\n\n",
1051 ansi_highlight(),
1052 yes_no(dnssec_supported),
1053 ansi_normal());
1054
1055 r = bus_get_property(bus, bus_resolve_mgr, "TransactionStatistics", &error, &reply, "(tt)");
1056 if (r < 0)
1057 return log_error_errno(r, "Failed to get transaction statistics: %s", bus_error_message(&error, r));
1058
1059 r = sd_bus_message_read(reply, "(tt)",
1060 &n_current_transactions,
1061 &n_total_transactions);
1062 if (r < 0)
1063 return bus_log_parse_error(r);
1064
1065 reply = sd_bus_message_unref(reply);
1066
1067 r = bus_get_property(bus, bus_resolve_mgr, "CacheStatistics", &error, &reply, "(ttt)");
1068 if (r < 0)
1069 return log_error_errno(r, "Failed to get cache statistics: %s", bus_error_message(&error, r));
1070
1071 r = sd_bus_message_read(reply, "(ttt)",
1072 &cache_size,
1073 &n_cache_hit,
1074 &n_cache_miss);
1075 if (r < 0)
1076 return bus_log_parse_error(r);
1077
1078 reply = sd_bus_message_unref(reply);
1079
1080 r = bus_get_property(bus, bus_resolve_mgr, "DNSSECStatistics", &error, &reply, "(tttt)");
1081 if (r < 0)
1082 return log_error_errno(r, "Failed to get DNSSEC statistics: %s", bus_error_message(&error, r));
1083
1084 r = sd_bus_message_read(reply, "(tttt)",
1085 &n_dnssec_secure,
1086 &n_dnssec_insecure,
1087 &n_dnssec_bogus,
1088 &n_dnssec_indeterminate);
1089 if (r < 0)
1090 return bus_log_parse_error(r);
1091
1092 table = table_new("key", "value");
1093 if (!table)
1094 return log_oom();
1095
1096 table_set_header(table, false);
1097
1098 r = table_add_many(table,
1099 TABLE_STRING, "Transactions",
1100 TABLE_SET_COLOR, ansi_highlight(),
1101 TABLE_EMPTY,
1102 TABLE_STRING, "Current Transactions:",
1103 TABLE_SET_ALIGN_PERCENT, 100,
1104 TABLE_UINT64, n_current_transactions,
1105 TABLE_STRING, "Total Transactions:",
1106 TABLE_UINT64, n_total_transactions,
1107 TABLE_EMPTY, TABLE_EMPTY,
1108 TABLE_STRING, "Cache",
1109 TABLE_SET_COLOR, ansi_highlight(),
1110 TABLE_SET_ALIGN_PERCENT, 0,
1111 TABLE_EMPTY,
1112 TABLE_STRING, "Current Cache Size:",
1113 TABLE_SET_ALIGN_PERCENT, 100,
1114 TABLE_UINT64, cache_size,
1115 TABLE_STRING, "Cache Hits:",
1116 TABLE_UINT64, n_cache_hit,
1117 TABLE_STRING, "Cache Misses:",
1118 TABLE_UINT64, n_cache_miss,
1119 TABLE_EMPTY, TABLE_EMPTY,
1120 TABLE_STRING, "DNSSEC Verdicts",
1121 TABLE_SET_COLOR, ansi_highlight(),
1122 TABLE_SET_ALIGN_PERCENT, 0,
1123 TABLE_EMPTY,
1124 TABLE_STRING, "Secure:",
1125 TABLE_SET_ALIGN_PERCENT, 100,
1126 TABLE_UINT64, n_dnssec_secure,
1127 TABLE_STRING, "Insecure:",
1128 TABLE_UINT64, n_dnssec_insecure,
1129 TABLE_STRING, "Bogus:",
1130 TABLE_UINT64, n_dnssec_bogus,
1131 TABLE_STRING, "Indeterminate:",
1132 TABLE_UINT64, n_dnssec_indeterminate);
1133 if (r < 0)
1134 table_log_add_error(r);
1135
1136 r = table_print(table, NULL);
1137 if (r < 0)
1138 return table_log_print_error(r);
1139
1140 return 0;
1141 }
1142
1143 static int reset_statistics(int argc, char **argv, void *userdata) {
1144 _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
1145 sd_bus *bus = userdata;
1146 int r;
1147
1148 r = bus_call_method(bus, bus_resolve_mgr, "ResetStatistics", &error, NULL, NULL);
1149 if (r < 0)
1150 return log_error_errno(r, "Failed to reset statistics: %s", bus_error_message(&error, r));
1151
1152 return 0;
1153 }
1154
1155 static int flush_caches(int argc, char **argv, void *userdata) {
1156 _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
1157 sd_bus *bus = userdata;
1158 int r;
1159
1160 r = bus_call_method(bus, bus_resolve_mgr, "FlushCaches", &error, NULL, NULL);
1161 if (r < 0)
1162 return log_error_errno(r, "Failed to flush caches: %s", bus_error_message(&error, r));
1163
1164 return 0;
1165 }
1166
1167 static int reset_server_features(int argc, char **argv, void *userdata) {
1168 _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
1169 sd_bus *bus = userdata;
1170 int r;
1171
1172 r = bus_call_method(bus, bus_resolve_mgr, "ResetServerFeatures", &error, NULL, NULL);
1173 if (r < 0)
1174 return log_error_errno(r, "Failed to reset server features: %s", bus_error_message(&error, r));
1175
1176 return 0;
1177 }
1178
1179 static int read_dns_server_one(sd_bus_message *m, bool with_ifindex, bool extended, char **ret) {
1180 _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
1181 _cleanup_free_ char *pretty = NULL;
1182 int ifindex, family, r, k;
1183 union in_addr_union a;
1184 const char *name = NULL;
1185 uint16_t port = 0;
1186
1187 assert(m);
1188 assert(ret);
1189
1190 r = sd_bus_message_enter_container(m, 'r', with_ifindex ? (extended ? "iiayqs" : "iiay") : (extended ? "iayqs" : "iay"));
1191 if (r <= 0)
1192 return r;
1193
1194 if (with_ifindex) {
1195 r = sd_bus_message_read(m, "i", &ifindex);
1196 if (r < 0)
1197 return r;
1198 }
1199
1200 k = bus_message_read_in_addr_auto(m, &error, &family, &a);
1201 if (k < 0 && !sd_bus_error_has_name(&error, SD_BUS_ERROR_INVALID_ARGS))
1202 return k;
1203
1204 if (extended) {
1205 r = sd_bus_message_read(m, "q", &port);
1206 if (r < 0)
1207 return r;
1208
1209 r = sd_bus_message_read(m, "s", &name);
1210 if (r < 0)
1211 return r;
1212 }
1213
1214 r = sd_bus_message_exit_container(m);
1215 if (r < 0)
1216 return r;
1217
1218 if (k < 0) {
1219 log_debug("Invalid DNS server, ignoring: %s", bus_error_message(&error, k));
1220 *ret = NULL;
1221 return 1;
1222 }
1223
1224 if (with_ifindex && ifindex != 0) {
1225 /* only show the global ones here */
1226 *ret = NULL;
1227 return 1;
1228 }
1229
1230 r = in_addr_port_ifindex_name_to_string(family, &a, port, ifindex, name, &pretty);
1231 if (r < 0)
1232 return r;
1233
1234 *ret = TAKE_PTR(pretty);
1235
1236 return 1;
1237 }
1238
1239 static int map_link_dns_servers_internal(sd_bus *bus, const char *member, sd_bus_message *m, sd_bus_error *error, void *userdata, bool extended) {
1240 char ***l = userdata;
1241 int r;
1242
1243 assert(bus);
1244 assert(member);
1245 assert(m);
1246 assert(l);
1247
1248 r = sd_bus_message_enter_container(m, 'a', extended ? "(iayqs)" : "(iay)");
1249 if (r < 0)
1250 return r;
1251
1252 for (;;) {
1253 _cleanup_free_ char *pretty = NULL;
1254
1255 r = read_dns_server_one(m, false, extended, &pretty);
1256 if (r < 0)
1257 return r;
1258 if (r == 0)
1259 break;
1260
1261 if (isempty(pretty))
1262 continue;
1263
1264 r = strv_consume(l, TAKE_PTR(pretty));
1265 if (r < 0)
1266 return r;
1267 }
1268
1269 r = sd_bus_message_exit_container(m);
1270 if (r < 0)
1271 return r;
1272
1273 return 0;
1274 }
1275
1276 static int map_link_dns_servers(sd_bus *bus, const char *member, sd_bus_message *m, sd_bus_error *error, void *userdata) {
1277 return map_link_dns_servers_internal(bus, member, m, error, userdata, false);
1278 }
1279
1280 static int map_link_dns_servers_ex(sd_bus *bus, const char *member, sd_bus_message *m, sd_bus_error *error, void *userdata) {
1281 return map_link_dns_servers_internal(bus, member, m, error, userdata, true);
1282 }
1283
1284 static int map_link_current_dns_server(sd_bus *bus, const char *member, sd_bus_message *m, sd_bus_error *error, void *userdata) {
1285 assert(m);
1286 assert(userdata);
1287
1288 return read_dns_server_one(m, false, false, userdata);
1289 }
1290
1291 static int map_link_current_dns_server_ex(sd_bus *bus, const char *member, sd_bus_message *m, sd_bus_error *error, void *userdata) {
1292 assert(m);
1293 assert(userdata);
1294
1295 return read_dns_server_one(m, false, true, userdata);
1296 }
1297
1298 static int read_domain_one(sd_bus_message *m, bool with_ifindex, char **ret) {
1299 _cleanup_free_ char *str = NULL;
1300 int ifindex, route_only, r;
1301 const char *domain;
1302
1303 assert(m);
1304 assert(ret);
1305
1306 if (with_ifindex)
1307 r = sd_bus_message_read(m, "(isb)", &ifindex, &domain, &route_only);
1308 else
1309 r = sd_bus_message_read(m, "(sb)", &domain, &route_only);
1310 if (r <= 0)
1311 return r;
1312
1313 if (with_ifindex && ifindex != 0) {
1314 /* only show the global ones here */
1315 *ret = NULL;
1316 return 1;
1317 }
1318
1319 if (route_only)
1320 str = strjoin("~", domain);
1321 else
1322 str = strdup(domain);
1323 if (!str)
1324 return -ENOMEM;
1325
1326 *ret = TAKE_PTR(str);
1327
1328 return 1;
1329 }
1330
1331 static int map_link_domains(sd_bus *bus, const char *member, sd_bus_message *m, sd_bus_error *error, void *userdata) {
1332 char ***l = userdata;
1333 int r;
1334
1335 assert(bus);
1336 assert(member);
1337 assert(m);
1338 assert(l);
1339
1340 r = sd_bus_message_enter_container(m, 'a', "(sb)");
1341 if (r < 0)
1342 return r;
1343
1344 for (;;) {
1345 _cleanup_free_ char *pretty = NULL;
1346
1347 r = read_domain_one(m, false, &pretty);
1348 if (r < 0)
1349 return r;
1350 if (r == 0)
1351 break;
1352
1353 if (isempty(pretty))
1354 continue;
1355
1356 r = strv_consume(l, TAKE_PTR(pretty));
1357 if (r < 0)
1358 return r;
1359 }
1360
1361 r = sd_bus_message_exit_container(m);
1362 if (r < 0)
1363 return r;
1364
1365 strv_sort(*l);
1366
1367 return 0;
1368 }
1369
1370 static int status_print_strv_ifindex(int ifindex, const char *ifname, char **p) {
1371 const unsigned indent = strlen("Global: "); /* Use the same indentation everywhere to make things nice */
1372 int pos1, pos2;
1373
1374 if (ifname)
1375 printf("%s%nLink %i (%s)%n%s:", ansi_highlight(), &pos1, ifindex, ifname, &pos2, ansi_normal());
1376 else
1377 printf("%s%nGlobal%n%s:", ansi_highlight(), &pos1, &pos2, ansi_normal());
1378
1379 size_t cols = columns(), position = pos2 - pos1 + 2;
1380 char **i;
1381
1382 STRV_FOREACH(i, p) {
1383 size_t our_len = utf8_console_width(*i); /* This returns -1 on invalid utf-8 (which shouldn't happen).
1384 * If that happens, we'll just print one item per line. */
1385
1386 if (position <= indent || size_add(size_add(position, 1), our_len) < cols) {
1387 printf(" %s", *i);
1388 position = size_add(size_add(position, 1), our_len);
1389 } else {
1390 printf("\n%*s%s", indent, "", *i);
1391 position = size_add(our_len, indent);
1392 }
1393 }
1394
1395 printf("\n");
1396
1397 return 0;
1398 }
1399
1400 static int status_print_strv_global(char **p) {
1401 return status_print_strv_ifindex(0, NULL, p);
1402 }
1403
1404 typedef struct LinkInfo {
1405 uint64_t scopes_mask;
1406 const char *llmnr;
1407 const char *mdns;
1408 const char *dns_over_tls;
1409 const char *dnssec;
1410 char *current_dns;
1411 char *current_dns_ex;
1412 char **dns;
1413 char **dns_ex;
1414 char **domains;
1415 char **ntas;
1416 bool dnssec_supported;
1417 bool default_route;
1418 } LinkInfo;
1419
1420 typedef struct GlobalInfo {
1421 char *current_dns;
1422 char *current_dns_ex;
1423 char **dns;
1424 char **dns_ex;
1425 char **fallback_dns;
1426 char **fallback_dns_ex;
1427 char **domains;
1428 char **ntas;
1429 const char *llmnr;
1430 const char *mdns;
1431 const char *dns_over_tls;
1432 const char *dnssec;
1433 const char *resolv_conf_mode;
1434 bool dnssec_supported;
1435 } GlobalInfo;
1436
1437 static void link_info_clear(LinkInfo *p) {
1438 free(p->current_dns);
1439 free(p->current_dns_ex);
1440 strv_free(p->dns);
1441 strv_free(p->dns_ex);
1442 strv_free(p->domains);
1443 strv_free(p->ntas);
1444 }
1445
1446 static void global_info_clear(GlobalInfo *p) {
1447 free(p->current_dns);
1448 free(p->current_dns_ex);
1449 strv_free(p->dns);
1450 strv_free(p->dns_ex);
1451 strv_free(p->fallback_dns);
1452 strv_free(p->fallback_dns_ex);
1453 strv_free(p->domains);
1454 strv_free(p->ntas);
1455 }
1456
1457 static int dump_list(Table *table, const char *prefix, char * const *l) {
1458 int r;
1459
1460 if (strv_isempty(l))
1461 return 0;
1462
1463 r = table_add_many(table,
1464 TABLE_STRING, prefix,
1465 TABLE_STRV_WRAPPED, l);
1466 if (r < 0)
1467 return table_log_add_error(r);
1468
1469 return 0;
1470 }
1471
1472 static int strv_extend_extended_bool(char ***strv, const char *name, const char *value) {
1473 int r;
1474
1475 if (value) {
1476 r = parse_boolean(value);
1477 if (r >= 0)
1478 return strv_extendf(strv, "%s%s", plus_minus(r), name);
1479 }
1480
1481 return strv_extendf(strv, "%s=%s", name, value ?: "???");
1482 }
1483
1484 static char** link_protocol_status(const LinkInfo *info) {
1485 _cleanup_strv_free_ char **s = NULL;
1486
1487 if (strv_extendf(&s, "%sDefaultRoute", plus_minus(info->default_route)) < 0)
1488 return NULL;
1489
1490 if (strv_extend_extended_bool(&s, "LLMNR", info->llmnr) < 0)
1491 return NULL;
1492
1493 if (strv_extend_extended_bool(&s, "mDNS", info->mdns) < 0)
1494 return NULL;
1495
1496 if (strv_extend_extended_bool(&s, "DNSOverTLS", info->dns_over_tls) < 0)
1497 return NULL;
1498
1499 if (strv_extendf(&s, "DNSSEC=%s/%s",
1500 info->dnssec ?: "???",
1501 info->dnssec_supported ? "supported" : "unsupported") < 0)
1502 return NULL;
1503
1504 return TAKE_PTR(s);
1505 }
1506
1507 static char** global_protocol_status(const GlobalInfo *info) {
1508 _cleanup_strv_free_ char **s = NULL;
1509
1510 if (strv_extend_extended_bool(&s, "LLMNR", info->llmnr) < 0)
1511 return NULL;
1512
1513 if (strv_extend_extended_bool(&s, "mDNS", info->mdns) < 0)
1514 return NULL;
1515
1516 if (strv_extend_extended_bool(&s, "DNSOverTLS", info->dns_over_tls) < 0)
1517 return NULL;
1518
1519 if (strv_extendf(&s, "DNSSEC=%s/%s",
1520 info->dnssec ?: "???",
1521 info->dnssec_supported ? "supported" : "unsupported") < 0)
1522 return NULL;
1523
1524 return TAKE_PTR(s);
1525 }
1526
1527 static int status_ifindex(sd_bus *bus, int ifindex, const char *name, StatusMode mode, bool *empty_line) {
1528 static const struct bus_properties_map property_map[] = {
1529 { "ScopesMask", "t", NULL, offsetof(LinkInfo, scopes_mask) },
1530 { "DNS", "a(iay)", map_link_dns_servers, offsetof(LinkInfo, dns) },
1531 { "DNSEx", "a(iayqs)", map_link_dns_servers_ex, offsetof(LinkInfo, dns_ex) },
1532 { "CurrentDNSServer", "(iay)", map_link_current_dns_server, offsetof(LinkInfo, current_dns) },
1533 { "CurrentDNSServerEx", "(iayqs)", map_link_current_dns_server_ex, offsetof(LinkInfo, current_dns_ex) },
1534 { "Domains", "a(sb)", map_link_domains, offsetof(LinkInfo, domains) },
1535 { "DefaultRoute", "b", NULL, offsetof(LinkInfo, default_route) },
1536 { "LLMNR", "s", NULL, offsetof(LinkInfo, llmnr) },
1537 { "MulticastDNS", "s", NULL, offsetof(LinkInfo, mdns) },
1538 { "DNSOverTLS", "s", NULL, offsetof(LinkInfo, dns_over_tls) },
1539 { "DNSSEC", "s", NULL, offsetof(LinkInfo, dnssec) },
1540 { "DNSSECNegativeTrustAnchors", "as", bus_map_strv_sort, offsetof(LinkInfo, ntas) },
1541 { "DNSSECSupported", "b", NULL, offsetof(LinkInfo, dnssec_supported) },
1542 {}
1543 };
1544 _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
1545 _cleanup_(sd_bus_message_unrefp) sd_bus_message *m = NULL;
1546 _cleanup_(link_info_clear) LinkInfo link_info = {};
1547 _cleanup_(table_unrefp) Table *table = NULL;
1548 _cleanup_free_ char *p = NULL;
1549 char ifi[DECIMAL_STR_MAX(int)], ifname[IF_NAMESIZE + 1] = "";
1550 int r;
1551
1552 assert(bus);
1553 assert(ifindex > 0);
1554
1555 if (!name) {
1556 if (!format_ifname(ifindex, ifname))
1557 return log_error_errno(errno, "Failed to resolve interface name for %i: %m", ifindex);
1558
1559 name = ifname;
1560 }
1561
1562 xsprintf(ifi, "%i", ifindex);
1563 r = sd_bus_path_encode("/org/freedesktop/resolve1/link", ifi, &p);
1564 if (r < 0)
1565 return log_oom();
1566
1567 r = bus_map_all_properties(bus,
1568 "org.freedesktop.resolve1",
1569 p,
1570 property_map,
1571 BUS_MAP_BOOLEAN_AS_BOOL,
1572 &error,
1573 &m,
1574 &link_info);
1575 if (r < 0)
1576 return log_error_errno(r, "Failed to get link data for %i: %s", ifindex, bus_error_message(&error, r));
1577
1578 (void) pager_open(arg_pager_flags);
1579
1580 if (mode == STATUS_DNS)
1581 return status_print_strv_ifindex(ifindex, name, link_info.dns_ex ?: link_info.dns);
1582
1583 if (mode == STATUS_DOMAIN)
1584 return status_print_strv_ifindex(ifindex, name, link_info.domains);
1585
1586 if (mode == STATUS_NTA)
1587 return status_print_strv_ifindex(ifindex, name, link_info.ntas);
1588
1589 if (mode == STATUS_DEFAULT_ROUTE) {
1590 printf("%sLink %i (%s)%s: %s\n",
1591 ansi_highlight(), ifindex, name, ansi_normal(),
1592 yes_no(link_info.default_route));
1593
1594 return 0;
1595 }
1596
1597 if (mode == STATUS_LLMNR) {
1598 printf("%sLink %i (%s)%s: %s\n",
1599 ansi_highlight(), ifindex, name, ansi_normal(),
1600 strna(link_info.llmnr));
1601
1602 return 0;
1603 }
1604
1605 if (mode == STATUS_MDNS) {
1606 printf("%sLink %i (%s)%s: %s\n",
1607 ansi_highlight(), ifindex, name, ansi_normal(),
1608 strna(link_info.mdns));
1609
1610 return 0;
1611 }
1612
1613 if (mode == STATUS_PRIVATE) {
1614 printf("%sLink %i (%s)%s: %s\n",
1615 ansi_highlight(), ifindex, name, ansi_normal(),
1616 strna(link_info.dns_over_tls));
1617
1618 return 0;
1619 }
1620
1621 if (mode == STATUS_DNSSEC) {
1622 printf("%sLink %i (%s)%s: %s\n",
1623 ansi_highlight(), ifindex, name, ansi_normal(),
1624 strna(link_info.dnssec));
1625
1626 return 0;
1627 }
1628
1629 if (empty_line && *empty_line)
1630 fputc('\n', stdout);
1631
1632 printf("%sLink %i (%s)%s\n",
1633 ansi_highlight(), ifindex, name, ansi_normal());
1634
1635 table = table_new("key", "value");
1636 if (!table)
1637 return log_oom();
1638
1639 table_set_header(table, false);
1640
1641 r = table_add_many(table,
1642 TABLE_STRING, "Current Scopes:",
1643 TABLE_SET_ALIGN_PERCENT, 100);
1644 if (r < 0)
1645 return table_log_add_error(r);
1646
1647 if (link_info.scopes_mask == 0)
1648 r = table_add_cell(table, NULL, TABLE_STRING, "none");
1649 else {
1650 _cleanup_free_ char *buf = NULL;
1651 size_t len;
1652
1653 if (asprintf(&buf, "%s%s%s%s%s",
1654 link_info.scopes_mask & SD_RESOLVED_DNS ? "DNS " : "",
1655 link_info.scopes_mask & SD_RESOLVED_LLMNR_IPV4 ? "LLMNR/IPv4 " : "",
1656 link_info.scopes_mask & SD_RESOLVED_LLMNR_IPV6 ? "LLMNR/IPv6 " : "",
1657 link_info.scopes_mask & SD_RESOLVED_MDNS_IPV4 ? "mDNS/IPv4 " : "",
1658 link_info.scopes_mask & SD_RESOLVED_MDNS_IPV6 ? "mDNS/IPv6 " : "") < 0)
1659 return log_oom();
1660
1661 len = strlen(buf);
1662 assert(len > 0);
1663 buf[len - 1] = '\0';
1664
1665 r = table_add_cell(table, NULL, TABLE_STRING, buf);
1666 }
1667 if (r < 0)
1668 return table_log_add_error(r);
1669
1670 _cleanup_strv_free_ char **pstatus = link_protocol_status(&link_info);
1671 if (!pstatus)
1672 return log_oom();
1673
1674 r = table_add_many(table,
1675 TABLE_STRING, "Protocols:",
1676 TABLE_STRV_WRAPPED, pstatus);
1677 if (r < 0)
1678 return table_log_add_error(r);
1679
1680 if (link_info.current_dns) {
1681 r = table_add_many(table,
1682 TABLE_STRING, "Current DNS Server:",
1683 TABLE_STRING, link_info.current_dns_ex ?: link_info.current_dns);
1684 if (r < 0)
1685 return table_log_add_error(r);
1686 }
1687
1688 r = dump_list(table, "DNS Servers:", link_info.dns_ex ?: link_info.dns);
1689 if (r < 0)
1690 return r;
1691
1692 r = dump_list(table, "DNS Domain:", link_info.domains);
1693 if (r < 0)
1694 return r;
1695
1696 r = table_print(table, NULL);
1697 if (r < 0)
1698 return table_log_print_error(r);
1699
1700 if (empty_line)
1701 *empty_line = true;
1702
1703 return 0;
1704 }
1705
1706 static int map_global_dns_servers_internal(sd_bus *bus, const char *member, sd_bus_message *m, sd_bus_error *error, void *userdata, bool extended) {
1707 char ***l = userdata;
1708 int r;
1709
1710 assert(bus);
1711 assert(member);
1712 assert(m);
1713 assert(l);
1714
1715 r = sd_bus_message_enter_container(m, 'a', extended ? "(iiayqs)" : "(iiay)");
1716 if (r < 0)
1717 return r;
1718
1719 for (;;) {
1720 _cleanup_free_ char *pretty = NULL;
1721
1722 r = read_dns_server_one(m, true, extended, &pretty);
1723 if (r < 0)
1724 return r;
1725 if (r == 0)
1726 break;
1727
1728 if (isempty(pretty))
1729 continue;
1730
1731 r = strv_consume(l, TAKE_PTR(pretty));
1732 if (r < 0)
1733 return r;
1734 }
1735
1736 r = sd_bus_message_exit_container(m);
1737 if (r < 0)
1738 return r;
1739
1740 return 0;
1741 }
1742
1743 static int map_global_dns_servers(sd_bus *bus, const char *member, sd_bus_message *m, sd_bus_error *error, void *userdata) {
1744 return map_global_dns_servers_internal(bus, member, m, error, userdata, false);
1745 }
1746
1747 static int map_global_dns_servers_ex(sd_bus *bus, const char *member, sd_bus_message *m, sd_bus_error *error, void *userdata) {
1748 return map_global_dns_servers_internal(bus, member, m, error, userdata, true);
1749 }
1750
1751 static int map_global_current_dns_server(sd_bus *bus, const char *member, sd_bus_message *m, sd_bus_error *error, void *userdata) {
1752 assert(m);
1753 assert(userdata);
1754
1755 return read_dns_server_one(m, true, false, userdata);
1756 }
1757
1758 static int map_global_current_dns_server_ex(sd_bus *bus, const char *member, sd_bus_message *m, sd_bus_error *error, void *userdata) {
1759 assert(m);
1760 assert(userdata);
1761
1762 return read_dns_server_one(m, true, true, userdata);
1763 }
1764
1765 static int map_global_domains(sd_bus *bus, const char *member, sd_bus_message *m, sd_bus_error *error, void *userdata) {
1766 char ***l = userdata;
1767 int r;
1768
1769 assert(bus);
1770 assert(member);
1771 assert(m);
1772 assert(l);
1773
1774 r = sd_bus_message_enter_container(m, 'a', "(isb)");
1775 if (r < 0)
1776 return r;
1777
1778 for (;;) {
1779 _cleanup_free_ char *pretty = NULL;
1780
1781 r = read_domain_one(m, true, &pretty);
1782 if (r < 0)
1783 return r;
1784 if (r == 0)
1785 break;
1786
1787 if (isempty(pretty))
1788 continue;
1789
1790 r = strv_consume(l, TAKE_PTR(pretty));
1791 if (r < 0)
1792 return r;
1793 }
1794
1795 r = sd_bus_message_exit_container(m);
1796 if (r < 0)
1797 return r;
1798
1799 strv_sort(*l);
1800
1801 return 0;
1802 }
1803
1804 static int status_global(sd_bus *bus, StatusMode mode, bool *empty_line) {
1805 static const struct bus_properties_map property_map[] = {
1806 { "DNS", "a(iiay)", map_global_dns_servers, offsetof(GlobalInfo, dns) },
1807 { "DNSEx", "a(iiayqs)", map_global_dns_servers_ex, offsetof(GlobalInfo, dns_ex) },
1808 { "FallbackDNS", "a(iiay)", map_global_dns_servers, offsetof(GlobalInfo, fallback_dns) },
1809 { "FallbackDNSEx", "a(iiayqs)", map_global_dns_servers_ex, offsetof(GlobalInfo, fallback_dns_ex) },
1810 { "CurrentDNSServer", "(iiay)", map_global_current_dns_server, offsetof(GlobalInfo, current_dns) },
1811 { "CurrentDNSServerEx", "(iiayqs)", map_global_current_dns_server_ex, offsetof(GlobalInfo, current_dns_ex) },
1812 { "Domains", "a(isb)", map_global_domains, offsetof(GlobalInfo, domains) },
1813 { "DNSSECNegativeTrustAnchors", "as", bus_map_strv_sort, offsetof(GlobalInfo, ntas) },
1814 { "LLMNR", "s", NULL, offsetof(GlobalInfo, llmnr) },
1815 { "MulticastDNS", "s", NULL, offsetof(GlobalInfo, mdns) },
1816 { "DNSOverTLS", "s", NULL, offsetof(GlobalInfo, dns_over_tls) },
1817 { "DNSSEC", "s", NULL, offsetof(GlobalInfo, dnssec) },
1818 { "DNSSECSupported", "b", NULL, offsetof(GlobalInfo, dnssec_supported) },
1819 { "ResolvConfMode", "s", NULL, offsetof(GlobalInfo, resolv_conf_mode) },
1820 {}
1821 };
1822 _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
1823 _cleanup_(sd_bus_message_unrefp) sd_bus_message *m = NULL;
1824 _cleanup_(global_info_clear) GlobalInfo global_info = {};
1825 _cleanup_(table_unrefp) Table *table = NULL;
1826 int r;
1827
1828 assert(bus);
1829 assert(empty_line);
1830
1831 r = bus_map_all_properties(bus,
1832 "org.freedesktop.resolve1",
1833 "/org/freedesktop/resolve1",
1834 property_map,
1835 BUS_MAP_BOOLEAN_AS_BOOL,
1836 &error,
1837 &m,
1838 &global_info);
1839 if (r < 0)
1840 return log_error_errno(r, "Failed to get global data: %s", bus_error_message(&error, r));
1841
1842 (void) pager_open(arg_pager_flags);
1843
1844 if (mode == STATUS_DNS)
1845 return status_print_strv_global(global_info.dns_ex ?: global_info.dns);
1846
1847 if (mode == STATUS_DOMAIN)
1848 return status_print_strv_global(global_info.domains);
1849
1850 if (mode == STATUS_NTA)
1851 return status_print_strv_global(global_info.ntas);
1852
1853 if (mode == STATUS_LLMNR) {
1854 printf("%sGlobal%s: %s\n", ansi_highlight(), ansi_normal(),
1855 strna(global_info.llmnr));
1856
1857 return 0;
1858 }
1859
1860 if (mode == STATUS_MDNS) {
1861 printf("%sGlobal%s: %s\n", ansi_highlight(), ansi_normal(),
1862 strna(global_info.mdns));
1863
1864 return 0;
1865 }
1866
1867 if (mode == STATUS_PRIVATE) {
1868 printf("%sGlobal%s: %s\n", ansi_highlight(), ansi_normal(),
1869 strna(global_info.dns_over_tls));
1870
1871 return 0;
1872 }
1873
1874 if (mode == STATUS_DNSSEC) {
1875 printf("%sGlobal%s: %s\n", ansi_highlight(), ansi_normal(),
1876 strna(global_info.dnssec));
1877
1878 return 0;
1879 }
1880
1881 printf("%sGlobal%s\n", ansi_highlight(), ansi_normal());
1882
1883 table = table_new("key", "value");
1884 if (!table)
1885 return log_oom();
1886
1887 table_set_header(table, false);
1888
1889 _cleanup_strv_free_ char **pstatus = global_protocol_status(&global_info);
1890 if (!pstatus)
1891 return log_oom();
1892
1893 r = table_add_many(table,
1894 TABLE_STRING, "Protocols:",
1895 TABLE_SET_ALIGN_PERCENT, 100,
1896 TABLE_STRV_WRAPPED, pstatus);
1897 if (r < 0)
1898 return table_log_add_error(r);
1899
1900 if (global_info.resolv_conf_mode) {
1901 r = table_add_many(table,
1902 TABLE_STRING, "resolv.conf mode:",
1903 TABLE_STRING, global_info.resolv_conf_mode);
1904 if (r < 0)
1905 return table_log_add_error(r);
1906 }
1907
1908 if (global_info.current_dns) {
1909 r = table_add_many(table,
1910 TABLE_STRING, "Current DNS Server:",
1911 TABLE_STRING, global_info.current_dns_ex ?: global_info.current_dns);
1912 if (r < 0)
1913 return table_log_add_error(r);
1914 }
1915
1916 r = dump_list(table, "DNS Servers:", global_info.dns_ex ?: global_info.dns);
1917 if (r < 0)
1918 return r;
1919
1920 r = dump_list(table, "Fallback DNS Servers:", global_info.fallback_dns_ex ?: global_info.fallback_dns);
1921 if (r < 0)
1922 return r;
1923
1924 r = dump_list(table, "DNS Domain:", global_info.domains);
1925 if (r < 0)
1926 return r;
1927
1928 r = table_print(table, NULL);
1929 if (r < 0)
1930 return table_log_print_error(r);
1931
1932 *empty_line = true;
1933
1934 return 0;
1935 }
1936
1937 static int status_all(sd_bus *bus, StatusMode mode) {
1938 _cleanup_(sd_netlink_message_unrefp) sd_netlink_message *req = NULL, *reply = NULL;
1939 _cleanup_(sd_netlink_unrefp) sd_netlink *rtnl = NULL;
1940 bool empty_line = false;
1941 int r;
1942
1943 assert(bus);
1944
1945 r = status_global(bus, mode, &empty_line);
1946 if (r < 0)
1947 return r;
1948
1949 r = sd_netlink_open(&rtnl);
1950 if (r < 0)
1951 return log_error_errno(r, "Failed to connect to netlink: %m");
1952
1953 r = sd_rtnl_message_new_link(rtnl, &req, RTM_GETLINK, 0);
1954 if (r < 0)
1955 return rtnl_log_create_error(r);
1956
1957 r = sd_netlink_message_request_dump(req, true);
1958 if (r < 0)
1959 return rtnl_log_create_error(r);
1960
1961 r = sd_netlink_call(rtnl, req, 0, &reply);
1962 if (r < 0)
1963 return log_error_errno(r, "Failed to enumerate links: %m");
1964
1965 _cleanup_free_ InterfaceInfo *infos = NULL;
1966 size_t n_allocated = 0, n_infos = 0;
1967
1968 for (sd_netlink_message *i = reply; i; i = sd_netlink_message_next(i)) {
1969 const char *name;
1970 int ifindex;
1971 uint16_t type;
1972
1973 r = sd_netlink_message_get_type(i, &type);
1974 if (r < 0)
1975 return rtnl_log_parse_error(r);
1976
1977 if (type != RTM_NEWLINK)
1978 continue;
1979
1980 r = sd_rtnl_message_link_get_ifindex(i, &ifindex);
1981 if (r < 0)
1982 return rtnl_log_parse_error(r);
1983
1984 if (ifindex == LOOPBACK_IFINDEX)
1985 continue;
1986
1987 r = sd_netlink_message_read_string(i, IFLA_IFNAME, &name);
1988 if (r < 0)
1989 return rtnl_log_parse_error(r);
1990
1991 if (!GREEDY_REALLOC(infos, n_allocated, n_infos + 1))
1992 return log_oom();
1993
1994 infos[n_infos++] = (InterfaceInfo) { ifindex, name };
1995 }
1996
1997 typesafe_qsort(infos, n_infos, interface_info_compare);
1998
1999 r = 0;
2000 for (size_t i = 0; i < n_infos; i++) {
2001 int q = status_ifindex(bus, infos[i].index, infos[i].name, mode, &empty_line);
2002 if (q < 0 && r >= 0)
2003 r = q;
2004 }
2005
2006 return r;
2007 }
2008
2009 static int verb_status(int argc, char **argv, void *userdata) {
2010 sd_bus *bus = userdata;
2011 _cleanup_(sd_netlink_unrefp) sd_netlink *rtnl = NULL;
2012 int r = 0;
2013
2014 if (argc > 1) {
2015 char **ifname;
2016 bool empty_line = false;
2017
2018 STRV_FOREACH(ifname, argv + 1) {
2019 int ifindex, q;
2020
2021 ifindex = resolve_interface(&rtnl, *ifname);
2022 if (ifindex < 0) {
2023 log_warning_errno(ifindex, "Failed to resolve interface \"%s\", ignoring: %m", *ifname);
2024 continue;
2025 }
2026
2027 q = status_ifindex(bus, ifindex, NULL, STATUS_ALL, &empty_line);
2028 if (q < 0)
2029 r = q;
2030 }
2031 } else
2032 r = status_all(bus, STATUS_ALL);
2033
2034 return r;
2035 }
2036
2037 static int call_dns(sd_bus *bus, char **dns, const BusLocator *locator, sd_bus_error *error, bool extended) {
2038 _cleanup_(sd_bus_message_unrefp) sd_bus_message *req = NULL;
2039 char **p;
2040 int r;
2041
2042 r = bus_message_new_method_call(bus, &req, locator, extended ? "SetLinkDNSEx" : "SetLinkDNS");
2043 if (r < 0)
2044 return bus_log_create_error(r);
2045
2046 r = sd_bus_message_append(req, "i", arg_ifindex);
2047 if (r < 0)
2048 return bus_log_create_error(r);
2049
2050 r = sd_bus_message_open_container(req, 'a', extended ? "(iayqs)" : "(iay)");
2051 if (r < 0)
2052 return bus_log_create_error(r);
2053
2054 /* If only argument is the empty string, then call SetLinkDNS() with an
2055 * empty list, which will clear the list of domains for an interface. */
2056 if (!strv_equal(dns, STRV_MAKE("")))
2057 STRV_FOREACH(p, dns) {
2058 _cleanup_free_ char *name = NULL;
2059 struct in_addr_data data;
2060 uint16_t port;
2061 int ifindex;
2062
2063 r = in_addr_port_ifindex_name_from_string_auto(*p, &data.family, &data.address, &port, &ifindex, &name);
2064 if (r < 0)
2065 return log_error_errno(r, "Failed to parse DNS server address: %s", *p);
2066
2067 if (ifindex != 0 && ifindex != arg_ifindex)
2068 return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "Invalid ifindex: %i", ifindex);
2069
2070 r = sd_bus_message_open_container(req, 'r', extended ? "iayqs" : "iay");
2071 if (r < 0)
2072 return bus_log_create_error(r);
2073
2074 r = sd_bus_message_append(req, "i", data.family);
2075 if (r < 0)
2076 return bus_log_create_error(r);
2077
2078 r = sd_bus_message_append_array(req, 'y', &data.address, FAMILY_ADDRESS_SIZE(data.family));
2079 if (r < 0)
2080 return bus_log_create_error(r);
2081
2082 if (extended) {
2083 r = sd_bus_message_append(req, "q", port);
2084 if (r < 0)
2085 return bus_log_create_error(r);
2086
2087 r = sd_bus_message_append(req, "s", name);
2088 if (r < 0)
2089 return bus_log_create_error(r);
2090 }
2091
2092 r = sd_bus_message_close_container(req);
2093 if (r < 0)
2094 return bus_log_create_error(r);
2095 }
2096
2097 r = sd_bus_message_close_container(req);
2098 if (r < 0)
2099 return bus_log_create_error(r);
2100
2101 r = sd_bus_call(bus, req, 0, error, NULL);
2102 if (r < 0 && extended && sd_bus_error_has_name(error, SD_BUS_ERROR_UNKNOWN_METHOD)) {
2103 sd_bus_error_free(error);
2104 return call_dns(bus, dns, locator, error, false);
2105 }
2106 return r;
2107 }
2108
2109 static int verb_dns(int argc, char **argv, void *userdata) {
2110 _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
2111 sd_bus *bus = userdata;
2112 int r;
2113
2114 assert(bus);
2115
2116 if (argc >= 2) {
2117 r = ifname_mangle(argv[1]);
2118 if (r < 0)
2119 return r;
2120 }
2121
2122 if (arg_ifindex <= 0)
2123 return status_all(bus, STATUS_DNS);
2124
2125 if (argc < 3)
2126 return status_ifindex(bus, arg_ifindex, NULL, STATUS_DNS, NULL);
2127
2128 r = call_dns(bus, argv + 2, bus_resolve_mgr, &error, true);
2129 if (r < 0 && sd_bus_error_has_name(&error, BUS_ERROR_LINK_BUSY)) {
2130 sd_bus_error_free(&error);
2131
2132 r = call_dns(bus, argv + 2, bus_network_mgr, &error, true);
2133 }
2134 if (r < 0) {
2135 if (arg_ifindex_permissive &&
2136 sd_bus_error_has_name(&error, BUS_ERROR_NO_SUCH_LINK))
2137 return 0;
2138
2139 return log_error_errno(r, "Failed to set DNS configuration: %s", bus_error_message(&error, r));
2140 }
2141
2142 return 0;
2143 }
2144
2145 static int call_domain(sd_bus *bus, char **domain, const BusLocator *locator, sd_bus_error *error) {
2146 _cleanup_(sd_bus_message_unrefp) sd_bus_message *req = NULL;
2147 char **p;
2148 int r;
2149
2150 r = bus_message_new_method_call(bus, &req, locator, "SetLinkDomains");
2151 if (r < 0)
2152 return bus_log_create_error(r);
2153
2154 r = sd_bus_message_append(req, "i", arg_ifindex);
2155 if (r < 0)
2156 return bus_log_create_error(r);
2157
2158 r = sd_bus_message_open_container(req, 'a', "(sb)");
2159 if (r < 0)
2160 return bus_log_create_error(r);
2161
2162 /* If only argument is the empty string, then call SetLinkDomains() with an
2163 * empty list, which will clear the list of domains for an interface. */
2164 if (!strv_equal(domain, STRV_MAKE("")))
2165 STRV_FOREACH(p, domain) {
2166 const char *n;
2167
2168 n = **p == '~' ? *p + 1 : *p;
2169
2170 r = dns_name_is_valid(n);
2171 if (r < 0)
2172 return log_error_errno(r, "Failed to validate specified domain %s: %m", n);
2173 if (r == 0)
2174 return log_error_errno(SYNTHETIC_ERRNO(EINVAL),
2175 "Domain not valid: %s",
2176 n);
2177
2178 r = sd_bus_message_append(req, "(sb)", n, **p == '~');
2179 if (r < 0)
2180 return bus_log_create_error(r);
2181 }
2182
2183 r = sd_bus_message_close_container(req);
2184 if (r < 0)
2185 return bus_log_create_error(r);
2186
2187 return sd_bus_call(bus, req, 0, error, NULL);
2188 }
2189
2190 static int verb_domain(int argc, char **argv, void *userdata) {
2191 _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
2192 sd_bus *bus = userdata;
2193 int r;
2194
2195 assert(bus);
2196
2197 if (argc >= 2) {
2198 r = ifname_mangle(argv[1]);
2199 if (r < 0)
2200 return r;
2201 }
2202
2203 if (arg_ifindex <= 0)
2204 return status_all(bus, STATUS_DOMAIN);
2205
2206 if (argc < 3)
2207 return status_ifindex(bus, arg_ifindex, NULL, STATUS_DOMAIN, NULL);
2208
2209 r = call_domain(bus, argv + 2, bus_resolve_mgr, &error);
2210 if (r < 0 && sd_bus_error_has_name(&error, BUS_ERROR_LINK_BUSY)) {
2211 sd_bus_error_free(&error);
2212
2213 r = call_domain(bus, argv + 2, bus_network_mgr, &error);
2214 }
2215 if (r < 0) {
2216 if (arg_ifindex_permissive &&
2217 sd_bus_error_has_name(&error, BUS_ERROR_NO_SUCH_LINK))
2218 return 0;
2219
2220 return log_error_errno(r, "Failed to set domain configuration: %s", bus_error_message(&error, r));
2221 }
2222
2223 return 0;
2224 }
2225
2226 static int verb_default_route(int argc, char **argv, void *userdata) {
2227 _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
2228 sd_bus *bus = userdata;
2229 int r, b;
2230
2231 assert(bus);
2232
2233 if (argc >= 2) {
2234 r = ifname_mangle(argv[1]);
2235 if (r < 0)
2236 return r;
2237 }
2238
2239 if (arg_ifindex <= 0)
2240 return status_all(bus, STATUS_DEFAULT_ROUTE);
2241
2242 if (argc < 3)
2243 return status_ifindex(bus, arg_ifindex, NULL, STATUS_DEFAULT_ROUTE, NULL);
2244
2245 b = parse_boolean(argv[2]);
2246 if (b < 0)
2247 return log_error_errno(b, "Failed to parse boolean argument: %s", argv[2]);
2248
2249 r = bus_call_method(bus, bus_resolve_mgr, "SetLinkDefaultRoute", &error, NULL, "ib", arg_ifindex, b);
2250 if (r < 0 && sd_bus_error_has_name(&error, BUS_ERROR_LINK_BUSY)) {
2251 sd_bus_error_free(&error);
2252
2253 r = bus_call_method(bus, bus_network_mgr, "SetLinkDefaultRoute", &error, NULL, "ib", arg_ifindex, b);
2254 }
2255 if (r < 0) {
2256 if (arg_ifindex_permissive &&
2257 sd_bus_error_has_name(&error, BUS_ERROR_NO_SUCH_LINK))
2258 return 0;
2259
2260 return log_error_errno(r, "Failed to set default route configuration: %s", bus_error_message(&error, r));
2261 }
2262
2263 return 0;
2264 }
2265
2266 static int verb_llmnr(int argc, char **argv, void *userdata) {
2267 _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
2268 sd_bus *bus = userdata;
2269 int r;
2270
2271 assert(bus);
2272
2273 if (argc >= 2) {
2274 r = ifname_mangle(argv[1]);
2275 if (r < 0)
2276 return r;
2277 }
2278
2279 if (arg_ifindex <= 0)
2280 return status_all(bus, STATUS_LLMNR);
2281
2282 if (argc < 3)
2283 return status_ifindex(bus, arg_ifindex, NULL, STATUS_LLMNR, NULL);
2284
2285 r = bus_call_method(bus, bus_resolve_mgr, "SetLinkLLMNR", &error, NULL, "is", arg_ifindex, argv[2]);
2286 if (r < 0 && sd_bus_error_has_name(&error, BUS_ERROR_LINK_BUSY)) {
2287 sd_bus_error_free(&error);
2288
2289 r = bus_call_method(bus, bus_network_mgr, "SetLinkLLMNR", &error, NULL, "is", arg_ifindex, argv[2]);
2290 }
2291 if (r < 0) {
2292 if (arg_ifindex_permissive &&
2293 sd_bus_error_has_name(&error, BUS_ERROR_NO_SUCH_LINK))
2294 return 0;
2295
2296 return log_error_errno(r, "Failed to set LLMNR configuration: %s", bus_error_message(&error, r));
2297 }
2298
2299 return 0;
2300 }
2301
2302 static int verb_mdns(int argc, char **argv, void *userdata) {
2303 _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
2304 sd_bus *bus = userdata;
2305 int r;
2306
2307 assert(bus);
2308
2309 if (argc >= 2) {
2310 r = ifname_mangle(argv[1]);
2311 if (r < 0)
2312 return r;
2313 }
2314
2315 if (arg_ifindex <= 0)
2316 return status_all(bus, STATUS_MDNS);
2317
2318 if (argc < 3)
2319 return status_ifindex(bus, arg_ifindex, NULL, STATUS_MDNS, NULL);
2320
2321 r = bus_call_method(bus, bus_resolve_mgr, "SetLinkMulticastDNS", &error, NULL, "is", arg_ifindex, argv[2]);
2322 if (r < 0 && sd_bus_error_has_name(&error, BUS_ERROR_LINK_BUSY)) {
2323 sd_bus_error_free(&error);
2324
2325 r = bus_call_method(
2326 bus,
2327 bus_network_mgr,
2328 "SetLinkMulticastDNS",
2329 &error,
2330 NULL,
2331 "is", arg_ifindex, argv[2]);
2332 }
2333 if (r < 0) {
2334 if (arg_ifindex_permissive &&
2335 sd_bus_error_has_name(&error, BUS_ERROR_NO_SUCH_LINK))
2336 return 0;
2337
2338 return log_error_errno(r, "Failed to set MulticastDNS configuration: %s", bus_error_message(&error, r));
2339 }
2340
2341 return 0;
2342 }
2343
2344 static int verb_dns_over_tls(int argc, char **argv, void *userdata) {
2345 _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
2346 sd_bus *bus = userdata;
2347 int r;
2348
2349 assert(bus);
2350
2351 if (argc >= 2) {
2352 r = ifname_mangle(argv[1]);
2353 if (r < 0)
2354 return r;
2355 }
2356
2357 if (arg_ifindex <= 0)
2358 return status_all(bus, STATUS_PRIVATE);
2359
2360 if (argc < 3)
2361 return status_ifindex(bus, arg_ifindex, NULL, STATUS_PRIVATE, NULL);
2362
2363 r = bus_call_method(bus, bus_resolve_mgr, "SetLinkDNSOverTLS", &error, NULL, "is", arg_ifindex, argv[2]);
2364 if (r < 0 && sd_bus_error_has_name(&error, BUS_ERROR_LINK_BUSY)) {
2365 sd_bus_error_free(&error);
2366
2367 r = bus_call_method(
2368 bus,
2369 bus_network_mgr,
2370 "SetLinkDNSOverTLS",
2371 &error,
2372 NULL,
2373 "is", arg_ifindex, argv[2]);
2374 }
2375 if (r < 0) {
2376 if (arg_ifindex_permissive &&
2377 sd_bus_error_has_name(&error, BUS_ERROR_NO_SUCH_LINK))
2378 return 0;
2379
2380 return log_error_errno(r, "Failed to set DNSOverTLS configuration: %s", bus_error_message(&error, r));
2381 }
2382
2383 return 0;
2384 }
2385
2386 static int verb_dnssec(int argc, char **argv, void *userdata) {
2387 _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
2388 sd_bus *bus = userdata;
2389 int r;
2390
2391 assert(bus);
2392
2393 if (argc >= 2) {
2394 r = ifname_mangle(argv[1]);
2395 if (r < 0)
2396 return r;
2397 }
2398
2399 if (arg_ifindex <= 0)
2400 return status_all(bus, STATUS_DNSSEC);
2401
2402 if (argc < 3)
2403 return status_ifindex(bus, arg_ifindex, NULL, STATUS_DNSSEC, NULL);
2404
2405 r = bus_call_method(bus, bus_resolve_mgr, "SetLinkDNSSEC", &error, NULL, "is", arg_ifindex, argv[2]);
2406 if (r < 0 && sd_bus_error_has_name(&error, BUS_ERROR_LINK_BUSY)) {
2407 sd_bus_error_free(&error);
2408
2409 r = bus_call_method(bus, bus_network_mgr, "SetLinkDNSSEC", &error, NULL, "is", arg_ifindex, argv[2]);
2410 }
2411 if (r < 0) {
2412 if (arg_ifindex_permissive &&
2413 sd_bus_error_has_name(&error, BUS_ERROR_NO_SUCH_LINK))
2414 return 0;
2415
2416 return log_error_errno(r, "Failed to set DNSSEC configuration: %s", bus_error_message(&error, r));
2417 }
2418
2419 return 0;
2420 }
2421
2422 static int call_nta(sd_bus *bus, char **nta, const BusLocator *locator, sd_bus_error *error) {
2423 _cleanup_(sd_bus_message_unrefp) sd_bus_message *req = NULL;
2424 int r;
2425
2426 r = bus_message_new_method_call(bus, &req, locator, "SetLinkDNSSECNegativeTrustAnchors");
2427 if (r < 0)
2428 return bus_log_create_error(r);
2429
2430 r = sd_bus_message_append(req, "i", arg_ifindex);
2431 if (r < 0)
2432 return bus_log_create_error(r);
2433
2434 r = sd_bus_message_append_strv(req, nta);
2435 if (r < 0)
2436 return bus_log_create_error(r);
2437
2438 return sd_bus_call(bus, req, 0, error, NULL);
2439 }
2440
2441 static int verb_nta(int argc, char **argv, void *userdata) {
2442 _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
2443 sd_bus *bus = userdata;
2444 char **p;
2445 int r;
2446 bool clear;
2447
2448 assert(bus);
2449
2450 if (argc >= 2) {
2451 r = ifname_mangle(argv[1]);
2452 if (r < 0)
2453 return r;
2454 }
2455
2456 if (arg_ifindex <= 0)
2457 return status_all(bus, STATUS_NTA);
2458
2459 if (argc < 3)
2460 return status_ifindex(bus, arg_ifindex, NULL, STATUS_NTA, NULL);
2461
2462 /* If only argument is the empty string, then call SetLinkDNSSECNegativeTrustAnchors()
2463 * with an empty list, which will clear the list of domains for an interface. */
2464 clear = strv_equal(argv + 2, STRV_MAKE(""));
2465
2466 if (!clear)
2467 STRV_FOREACH(p, argv + 2) {
2468 r = dns_name_is_valid(*p);
2469 if (r < 0)
2470 return log_error_errno(r, "Failed to validate specified domain %s: %m", *p);
2471 if (r == 0)
2472 return log_error_errno(SYNTHETIC_ERRNO(EINVAL),
2473 "Domain not valid: %s",
2474 *p);
2475 }
2476
2477 r = call_nta(bus, clear ? NULL : argv + 2, bus_resolve_mgr, &error);
2478 if (r < 0 && sd_bus_error_has_name(&error, BUS_ERROR_LINK_BUSY)) {
2479 sd_bus_error_free(&error);
2480
2481 r = call_nta(bus, clear ? NULL : argv + 2, bus_network_mgr, &error);
2482 }
2483 if (r < 0) {
2484 if (arg_ifindex_permissive &&
2485 sd_bus_error_has_name(&error, BUS_ERROR_NO_SUCH_LINK))
2486 return 0;
2487
2488 return log_error_errno(r, "Failed to set DNSSEC NTA configuration: %s", bus_error_message(&error, r));
2489 }
2490
2491 return 0;
2492 }
2493
2494 static int verb_revert_link(int argc, char **argv, void *userdata) {
2495 _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
2496 sd_bus *bus = userdata;
2497 int r;
2498
2499 assert(bus);
2500
2501 if (argc >= 2) {
2502 r = ifname_mangle(argv[1]);
2503 if (r < 0)
2504 return r;
2505 }
2506
2507 if (arg_ifindex <= 0)
2508 return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "Interface argument required.");
2509
2510 r = bus_call_method(bus, bus_resolve_mgr, "RevertLink", &error, NULL, "i", arg_ifindex);
2511 if (r < 0 && sd_bus_error_has_name(&error, BUS_ERROR_LINK_BUSY)) {
2512 sd_bus_error_free(&error);
2513
2514 r = bus_call_method(bus, bus_network_mgr, "RevertLinkDNS", &error, NULL, "i", arg_ifindex);
2515 }
2516 if (r < 0) {
2517 if (arg_ifindex_permissive &&
2518 sd_bus_error_has_name(&error, BUS_ERROR_NO_SUCH_LINK))
2519 return 0;
2520
2521 return log_error_errno(r, "Failed to revert interface configuration: %s", bus_error_message(&error, r));
2522 }
2523
2524 return 0;
2525 }
2526
2527 static int verb_log_level(int argc, char *argv[], void *userdata) {
2528 _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
2529 sd_bus *bus = userdata;
2530 int r;
2531
2532 assert(bus);
2533
2534 if (argc == 1) {
2535 _cleanup_free_ char *level = NULL;
2536
2537 r = sd_bus_get_property_string(
2538 bus,
2539 "org.freedesktop.resolve1",
2540 "/org/freedesktop/LogControl1",
2541 "org.freedesktop.LogControl1",
2542 "LogLevel",
2543 &error,
2544 &level);
2545 if (r < 0)
2546 return log_error_errno(r, "Failed to get log level: %s", bus_error_message(&error, r));
2547
2548 puts(level);
2549
2550 } else {
2551 assert(argc == 2);
2552
2553 r = sd_bus_set_property(
2554 bus,
2555 "org.freedesktop.resolve1",
2556 "/org/freedesktop/LogControl1",
2557 "org.freedesktop.LogControl1",
2558 "LogLevel",
2559 &error,
2560 "s",
2561 argv[1]);
2562 if (r < 0)
2563 return log_error_errno(r, "Failed to set log level: %s", bus_error_message(&error, r));
2564 }
2565
2566 return 0;
2567 }
2568
2569 static void help_protocol_types(void) {
2570 if (arg_legend)
2571 puts("Known protocol types:");
2572 puts("dns\nllmnr\nllmnr-ipv4\nllmnr-ipv6\nmdns\nmdns-ipv4\nmdns-ipv6");
2573 }
2574
2575 static void help_dns_types(void) {
2576 if (arg_legend)
2577 puts("Known DNS RR types:");
2578
2579 DUMP_STRING_TABLE(dns_type, int, _DNS_TYPE_MAX);
2580 }
2581
2582 static void help_dns_classes(void) {
2583 if (arg_legend)
2584 puts("Known DNS RR classes:");
2585
2586 DUMP_STRING_TABLE(dns_class, int, _DNS_CLASS_MAX);
2587 }
2588
2589 static int compat_help(void) {
2590 _cleanup_free_ char *link = NULL;
2591 int r;
2592
2593 r = terminal_urlify_man("resolvectl", "1", &link);
2594 if (r < 0)
2595 return log_oom();
2596
2597 printf("%1$s [OPTIONS...] HOSTNAME|ADDRESS...\n"
2598 "%1$s [OPTIONS...] --service [[NAME] TYPE] DOMAIN\n"
2599 "%1$s [OPTIONS...] --openpgp EMAIL@DOMAIN...\n"
2600 "%1$s [OPTIONS...] --statistics\n"
2601 "%1$s [OPTIONS...] --reset-statistics\n"
2602 "\n"
2603 "%2$sResolve domain names, IPv4 and IPv6 addresses, DNS records, and services.%3$s\n\n"
2604 " -h --help Show this help\n"
2605 " --version Show package version\n"
2606 " --no-pager Do not pipe output into a pager\n"
2607 " -4 Resolve IPv4 addresses\n"
2608 " -6 Resolve IPv6 addresses\n"
2609 " -i --interface=INTERFACE Look on interface\n"
2610 " -p --protocol=PROTO|help Look via protocol\n"
2611 " -t --type=TYPE|help Query RR with DNS type\n"
2612 " -c --class=CLASS|help Query RR with DNS class\n"
2613 " --service Resolve service (SRV)\n"
2614 " --service-address=BOOL Resolve address for services (default: yes)\n"
2615 " --service-txt=BOOL Resolve TXT records for services (default: yes)\n"
2616 " --openpgp Query OpenPGP public key\n"
2617 " --tlsa Query TLS public key\n"
2618 " --cname=BOOL Follow CNAME redirects (default: yes)\n"
2619 " --search=BOOL Use search domains for single-label names\n"
2620 " (default: yes)\n"
2621 " --raw[=payload|packet] Dump the answer as binary data\n"
2622 " --legend=BOOL Print headers and additional info (default: yes)\n"
2623 " --statistics Show resolver statistics\n"
2624 " --reset-statistics Reset resolver statistics\n"
2625 " --status Show link and server status\n"
2626 " --flush-caches Flush all local DNS caches\n"
2627 " --reset-server-features\n"
2628 " Forget learnt DNS server feature levels\n"
2629 " --set-dns=SERVER Set per-interface DNS server address\n"
2630 " --set-domain=DOMAIN Set per-interface search domain\n"
2631 " --set-llmnr=MODE Set per-interface LLMNR mode\n"
2632 " --set-mdns=MODE Set per-interface MulticastDNS mode\n"
2633 " --set-dnsovertls=MODE Set per-interface DNS-over-TLS mode\n"
2634 " --set-dnssec=MODE Set per-interface DNSSEC mode\n"
2635 " --set-nta=DOMAIN Set per-interface DNSSEC NTA\n"
2636 " --revert Revert per-interface configuration\n"
2637 "\nSee the %4$s for details.\n",
2638 program_invocation_short_name,
2639 ansi_highlight(),
2640 ansi_normal(),
2641 link);
2642
2643 return 0;
2644 }
2645
2646 static int native_help(void) {
2647 _cleanup_free_ char *link = NULL;
2648 int r;
2649
2650 r = terminal_urlify_man("resolvectl", "1", &link);
2651 if (r < 0)
2652 return log_oom();
2653
2654 printf("%s [OPTIONS...] COMMAND ...\n"
2655 "\n"
2656 "%sSend control commands to the network name resolution manager, or%s\n"
2657 "%sresolve domain names, IPv4 and IPv6 addresses, DNS records, and services.%s\n"
2658 "\nCommands:\n"
2659 " query HOSTNAME|ADDRESS... Resolve domain names, IPv4 and IPv6 addresses\n"
2660 " service [[NAME] TYPE] DOMAIN Resolve service (SRV)\n"
2661 " openpgp EMAIL@DOMAIN... Query OpenPGP public key\n"
2662 " tlsa DOMAIN[:PORT]... Query TLS public key\n"
2663 " status [LINK...] Show link and server status\n"
2664 " statistics Show resolver statistics\n"
2665 " reset-statistics Reset resolver statistics\n"
2666 " flush-caches Flush all local DNS caches\n"
2667 " reset-server-features Forget learnt DNS server feature levels\n"
2668 " dns [LINK [SERVER...]] Get/set per-interface DNS server address\n"
2669 " domain [LINK [DOMAIN...]] Get/set per-interface search domain\n"
2670 " default-route [LINK [BOOL]] Get/set per-interface default route flag\n"
2671 " llmnr [LINK [MODE]] Get/set per-interface LLMNR mode\n"
2672 " mdns [LINK [MODE]] Get/set per-interface MulticastDNS mode\n"
2673 " dnsovertls [LINK [MODE]] Get/set per-interface DNS-over-TLS mode\n"
2674 " dnssec [LINK [MODE]] Get/set per-interface DNSSEC mode\n"
2675 " nta [LINK [DOMAIN...]] Get/set per-interface DNSSEC NTA\n"
2676 " revert LINK Revert per-interface configuration\n"
2677 " log-level [LEVEL] Get/set logging threshold for systemd-resolved\n"
2678 "\nOptions:\n"
2679 " -h --help Show this help\n"
2680 " --version Show package version\n"
2681 " --no-pager Do not pipe output into a pager\n"
2682 " -4 Resolve IPv4 addresses\n"
2683 " -6 Resolve IPv6 addresses\n"
2684 " -i --interface=INTERFACE Look on interface\n"
2685 " -p --protocol=PROTO|help Look via protocol\n"
2686 " -t --type=TYPE|help Query RR with DNS type\n"
2687 " -c --class=CLASS|help Query RR with DNS class\n"
2688 " --service-address=BOOL Resolve address for services (default: yes)\n"
2689 " --service-txt=BOOL Resolve TXT records for services (default: yes)\n"
2690 " --cname=BOOL Follow CNAME redirects (default: yes)\n"
2691 " --validate=BOOL Allow DNSSEC validation (default: yes)\n"
2692 " --synthesize=BOOL Allow synthetic response (default: yes)\n"
2693 " --cache=BOOL Allow response from cache (default: yes)\n"
2694 " --zone=BOOL Allow response from locally registered mDNS/LLMNR\n"
2695 " records (default: yes)\n"
2696 " --trust-anchor=BOOL Allow response from local trust anchor (default: yes)\n"
2697 " --network=BOOL Allow response from network (default: yes)\n"
2698 " --search=BOOL Use search domains for single-label names (default: yes)\n"
2699 " --raw[=payload|packet] Dump the answer as binary data\n"
2700 " --legend=BOOL Print headers and additional info (default: yes)\n"
2701 "\nSee the %s for details.\n",
2702 program_invocation_short_name,
2703 ansi_highlight(),
2704 ansi_normal(),
2705 ansi_highlight(),
2706 ansi_normal(),
2707 link);
2708
2709 return 0;
2710 }
2711
2712 static int verb_help(int argc, char **argv, void *userdata) {
2713 return native_help();
2714 }
2715
2716 static int compat_parse_argv(int argc, char *argv[]) {
2717 enum {
2718 ARG_VERSION = 0x100,
2719 ARG_LEGEND,
2720 ARG_SERVICE,
2721 ARG_CNAME,
2722 ARG_SERVICE_ADDRESS,
2723 ARG_SERVICE_TXT,
2724 ARG_OPENPGP,
2725 ARG_TLSA,
2726 ARG_RAW,
2727 ARG_SEARCH,
2728 ARG_STATISTICS,
2729 ARG_RESET_STATISTICS,
2730 ARG_STATUS,
2731 ARG_FLUSH_CACHES,
2732 ARG_RESET_SERVER_FEATURES,
2733 ARG_NO_PAGER,
2734 ARG_SET_DNS,
2735 ARG_SET_DOMAIN,
2736 ARG_SET_LLMNR,
2737 ARG_SET_MDNS,
2738 ARG_SET_PRIVATE,
2739 ARG_SET_DNSSEC,
2740 ARG_SET_NTA,
2741 ARG_REVERT_LINK,
2742 };
2743
2744 static const struct option options[] = {
2745 { "help", no_argument, NULL, 'h' },
2746 { "version", no_argument, NULL, ARG_VERSION },
2747 { "type", required_argument, NULL, 't' },
2748 { "class", required_argument, NULL, 'c' },
2749 { "legend", required_argument, NULL, ARG_LEGEND },
2750 { "interface", required_argument, NULL, 'i' },
2751 { "protocol", required_argument, NULL, 'p' },
2752 { "cname", required_argument, NULL, ARG_CNAME },
2753 { "service", no_argument, NULL, ARG_SERVICE },
2754 { "service-address", required_argument, NULL, ARG_SERVICE_ADDRESS },
2755 { "service-txt", required_argument, NULL, ARG_SERVICE_TXT },
2756 { "openpgp", no_argument, NULL, ARG_OPENPGP },
2757 { "tlsa", optional_argument, NULL, ARG_TLSA },
2758 { "raw", optional_argument, NULL, ARG_RAW },
2759 { "search", required_argument, NULL, ARG_SEARCH },
2760 { "statistics", no_argument, NULL, ARG_STATISTICS, },
2761 { "reset-statistics", no_argument, NULL, ARG_RESET_STATISTICS },
2762 { "status", no_argument, NULL, ARG_STATUS },
2763 { "flush-caches", no_argument, NULL, ARG_FLUSH_CACHES },
2764 { "reset-server-features", no_argument, NULL, ARG_RESET_SERVER_FEATURES },
2765 { "no-pager", no_argument, NULL, ARG_NO_PAGER },
2766 { "set-dns", required_argument, NULL, ARG_SET_DNS },
2767 { "set-domain", required_argument, NULL, ARG_SET_DOMAIN },
2768 { "set-llmnr", required_argument, NULL, ARG_SET_LLMNR },
2769 { "set-mdns", required_argument, NULL, ARG_SET_MDNS },
2770 { "set-dnsovertls", required_argument, NULL, ARG_SET_PRIVATE },
2771 { "set-dnssec", required_argument, NULL, ARG_SET_DNSSEC },
2772 { "set-nta", required_argument, NULL, ARG_SET_NTA },
2773 { "revert", no_argument, NULL, ARG_REVERT_LINK },
2774 {}
2775 };
2776
2777 int c, r;
2778
2779 assert(argc >= 0);
2780 assert(argv);
2781
2782 while ((c = getopt_long(argc, argv, "h46i:t:c:p:", options, NULL)) >= 0)
2783 switch(c) {
2784
2785 case 'h':
2786 return compat_help();
2787
2788 case ARG_VERSION:
2789 return version();
2790
2791 case '4':
2792 arg_family = AF_INET;
2793 break;
2794
2795 case '6':
2796 arg_family = AF_INET6;
2797 break;
2798
2799 case 'i':
2800 r = ifname_mangle(optarg);
2801 if (r < 0)
2802 return r;
2803 break;
2804
2805 case 't':
2806 if (streq(optarg, "help")) {
2807 help_dns_types();
2808 return 0;
2809 }
2810
2811 r = dns_type_from_string(optarg);
2812 if (r < 0)
2813 return log_error_errno(r, "Failed to parse RR record type %s: %m", optarg);
2814
2815 arg_type = (uint16_t) r;
2816 assert((int) arg_type == r);
2817
2818 arg_mode = MODE_RESOLVE_RECORD;
2819 break;
2820
2821 case 'c':
2822 if (streq(optarg, "help")) {
2823 help_dns_classes();
2824 return 0;
2825 }
2826
2827 r = dns_class_from_string(optarg);
2828 if (r < 0)
2829 return log_error_errno(r, "Failed to parse RR record class %s: %m", optarg);
2830
2831 arg_class = (uint16_t) r;
2832 assert((int) arg_class == r);
2833
2834 break;
2835
2836 case ARG_LEGEND:
2837 r = parse_boolean_argument("--legend=", optarg, &arg_legend);
2838 if (r < 0)
2839 return r;
2840 break;
2841
2842 case 'p':
2843 if (streq(optarg, "help")) {
2844 help_protocol_types();
2845 return 0;
2846 } else if (streq(optarg, "dns"))
2847 arg_flags |= SD_RESOLVED_DNS;
2848 else if (streq(optarg, "llmnr"))
2849 arg_flags |= SD_RESOLVED_LLMNR;
2850 else if (streq(optarg, "llmnr-ipv4"))
2851 arg_flags |= SD_RESOLVED_LLMNR_IPV4;
2852 else if (streq(optarg, "llmnr-ipv6"))
2853 arg_flags |= SD_RESOLVED_LLMNR_IPV6;
2854 else if (streq(optarg, "mdns"))
2855 arg_flags |= SD_RESOLVED_MDNS;
2856 else if (streq(optarg, "mdns-ipv4"))
2857 arg_flags |= SD_RESOLVED_MDNS_IPV4;
2858 else if (streq(optarg, "mdns-ipv6"))
2859 arg_flags |= SD_RESOLVED_MDNS_IPV6;
2860 else
2861 return log_error_errno(SYNTHETIC_ERRNO(EINVAL),
2862 "Unknown protocol specifier: %s", optarg);
2863
2864 break;
2865
2866 case ARG_SERVICE:
2867 arg_mode = MODE_RESOLVE_SERVICE;
2868 break;
2869
2870 case ARG_OPENPGP:
2871 arg_mode = MODE_RESOLVE_OPENPGP;
2872 break;
2873
2874 case ARG_TLSA:
2875 arg_mode = MODE_RESOLVE_TLSA;
2876 if (!optarg || service_family_is_valid(optarg))
2877 arg_service_family = optarg;
2878 else
2879 return log_error_errno(SYNTHETIC_ERRNO(EINVAL),
2880 "Unknown service family \"%s\".", optarg);
2881 break;
2882
2883 case ARG_RAW:
2884 if (on_tty())
2885 return log_error_errno(SYNTHETIC_ERRNO(ENOTTY),
2886 "Refusing to write binary data to tty.");
2887
2888 if (optarg == NULL || streq(optarg, "payload"))
2889 arg_raw = RAW_PAYLOAD;
2890 else if (streq(optarg, "packet"))
2891 arg_raw = RAW_PACKET;
2892 else
2893 return log_error_errno(SYNTHETIC_ERRNO(EINVAL),
2894 "Unknown --raw specifier \"%s\".",
2895 optarg);
2896
2897 arg_legend = false;
2898 break;
2899
2900 case ARG_CNAME:
2901 r = parse_boolean_argument("--cname=", optarg, NULL);
2902 if (r < 0)
2903 return r;
2904 SET_FLAG(arg_flags, SD_RESOLVED_NO_CNAME, r == 0);
2905 break;
2906
2907 case ARG_SERVICE_ADDRESS:
2908 r = parse_boolean_argument("--service-address=", optarg, NULL);
2909 if (r < 0)
2910 return r;
2911 SET_FLAG(arg_flags, SD_RESOLVED_NO_ADDRESS, r == 0);
2912 break;
2913
2914 case ARG_SERVICE_TXT:
2915 r = parse_boolean_argument("--service-txt=", optarg, NULL);
2916 if (r < 0)
2917 return r;
2918 SET_FLAG(arg_flags, SD_RESOLVED_NO_TXT, r == 0);
2919 break;
2920
2921 case ARG_SEARCH:
2922 r = parse_boolean_argument("--search=", optarg, NULL);
2923 if (r < 0)
2924 return r;
2925 SET_FLAG(arg_flags, SD_RESOLVED_NO_SEARCH, r == 0);
2926 break;
2927
2928 case ARG_STATISTICS:
2929 arg_mode = MODE_STATISTICS;
2930 break;
2931
2932 case ARG_RESET_STATISTICS:
2933 arg_mode = MODE_RESET_STATISTICS;
2934 break;
2935
2936 case ARG_FLUSH_CACHES:
2937 arg_mode = MODE_FLUSH_CACHES;
2938 break;
2939
2940 case ARG_RESET_SERVER_FEATURES:
2941 arg_mode = MODE_RESET_SERVER_FEATURES;
2942 break;
2943
2944 case ARG_STATUS:
2945 arg_mode = MODE_STATUS;
2946 break;
2947
2948 case ARG_NO_PAGER:
2949 arg_pager_flags |= PAGER_DISABLE;
2950 break;
2951
2952 case ARG_SET_DNS:
2953 r = strv_extend(&arg_set_dns, optarg);
2954 if (r < 0)
2955 return log_oom();
2956
2957 arg_mode = MODE_SET_LINK;
2958 break;
2959
2960 case ARG_SET_DOMAIN:
2961 r = strv_extend(&arg_set_domain, optarg);
2962 if (r < 0)
2963 return log_oom();
2964
2965 arg_mode = MODE_SET_LINK;
2966 break;
2967
2968 case ARG_SET_LLMNR:
2969 arg_set_llmnr = optarg;
2970 arg_mode = MODE_SET_LINK;
2971 break;
2972
2973 case ARG_SET_MDNS:
2974 arg_set_mdns = optarg;
2975 arg_mode = MODE_SET_LINK;
2976 break;
2977
2978 case ARG_SET_PRIVATE:
2979 arg_set_dns_over_tls = optarg;
2980 arg_mode = MODE_SET_LINK;
2981 break;
2982
2983 case ARG_SET_DNSSEC:
2984 arg_set_dnssec = optarg;
2985 arg_mode = MODE_SET_LINK;
2986 break;
2987
2988 case ARG_SET_NTA:
2989 r = strv_extend(&arg_set_nta, optarg);
2990 if (r < 0)
2991 return log_oom();
2992
2993 arg_mode = MODE_SET_LINK;
2994 break;
2995
2996 case ARG_REVERT_LINK:
2997 arg_mode = MODE_REVERT_LINK;
2998 break;
2999
3000 case '?':
3001 return -EINVAL;
3002
3003 default:
3004 assert_not_reached("Unhandled option");
3005 }
3006
3007 if (arg_type == 0 && arg_class != 0)
3008 return log_error_errno(SYNTHETIC_ERRNO(EINVAL),
3009 "--class= may only be used in conjunction with --type=.");
3010
3011 if (arg_type != 0 && arg_mode == MODE_RESOLVE_SERVICE)
3012 return log_error_errno(SYNTHETIC_ERRNO(EINVAL),
3013 "--service and --type= may not be combined.");
3014
3015 if (arg_type != 0 && arg_class == 0)
3016 arg_class = DNS_CLASS_IN;
3017
3018 if (arg_class != 0 && arg_type == 0)
3019 arg_type = DNS_TYPE_A;
3020
3021 if (IN_SET(arg_mode, MODE_SET_LINK, MODE_REVERT_LINK)) {
3022
3023 if (arg_ifindex <= 0)
3024 return log_error_errno(SYNTHETIC_ERRNO(EINVAL),
3025 "--set-dns=, --set-domain=, --set-llmnr=, --set-mdns=, --set-dnsovertls=, --set-dnssec=, --set-nta= and --revert require --interface=.");
3026 }
3027
3028 return 1 /* work to do */;
3029 }
3030
3031 static int native_parse_argv(int argc, char *argv[]) {
3032 enum {
3033 ARG_VERSION = 0x100,
3034 ARG_LEGEND,
3035 ARG_CNAME,
3036 ARG_VALIDATE,
3037 ARG_SYNTHESIZE,
3038 ARG_CACHE,
3039 ARG_ZONE,
3040 ARG_TRUST_ANCHOR,
3041 ARG_NETWORK,
3042 ARG_SERVICE_ADDRESS,
3043 ARG_SERVICE_TXT,
3044 ARG_RAW,
3045 ARG_SEARCH,
3046 ARG_NO_PAGER,
3047 };
3048
3049 static const struct option options[] = {
3050 { "help", no_argument, NULL, 'h' },
3051 { "version", no_argument, NULL, ARG_VERSION },
3052 { "type", required_argument, NULL, 't' },
3053 { "class", required_argument, NULL, 'c' },
3054 { "legend", required_argument, NULL, ARG_LEGEND },
3055 { "interface", required_argument, NULL, 'i' },
3056 { "protocol", required_argument, NULL, 'p' },
3057 { "cname", required_argument, NULL, ARG_CNAME },
3058 { "validate", required_argument, NULL, ARG_VALIDATE },
3059 { "synthesize", required_argument, NULL, ARG_SYNTHESIZE },
3060 { "cache", required_argument, NULL, ARG_CACHE },
3061 { "zone", required_argument, NULL, ARG_ZONE },
3062 { "trust-anchor", required_argument, NULL, ARG_TRUST_ANCHOR },
3063 { "network", required_argument, NULL, ARG_NETWORK },
3064 { "service-address", required_argument, NULL, ARG_SERVICE_ADDRESS },
3065 { "service-txt", required_argument, NULL, ARG_SERVICE_TXT },
3066 { "raw", optional_argument, NULL, ARG_RAW },
3067 { "search", required_argument, NULL, ARG_SEARCH },
3068 { "no-pager", no_argument, NULL, ARG_NO_PAGER },
3069 {}
3070 };
3071
3072 int c, r;
3073
3074 assert(argc >= 0);
3075 assert(argv);
3076
3077 while ((c = getopt_long(argc, argv, "h46i:t:c:p:", options, NULL)) >= 0)
3078 switch(c) {
3079
3080 case 'h':
3081 return native_help();
3082
3083 case ARG_VERSION:
3084 return version();
3085
3086 case '4':
3087 arg_family = AF_INET;
3088 break;
3089
3090 case '6':
3091 arg_family = AF_INET6;
3092 break;
3093
3094 case 'i':
3095 r = ifname_mangle(optarg);
3096 if (r < 0)
3097 return r;
3098 break;
3099
3100 case 't':
3101 if (streq(optarg, "help")) {
3102 help_dns_types();
3103 return 0;
3104 }
3105
3106 r = dns_type_from_string(optarg);
3107 if (r < 0)
3108 return log_error_errno(r, "Failed to parse RR record type %s: %m", optarg);
3109
3110 arg_type = (uint16_t) r;
3111 assert((int) arg_type == r);
3112
3113 break;
3114
3115 case 'c':
3116 if (streq(optarg, "help")) {
3117 help_dns_classes();
3118 return 0;
3119 }
3120
3121 r = dns_class_from_string(optarg);
3122 if (r < 0)
3123 return log_error_errno(r, "Failed to parse RR record class %s: %m", optarg);
3124
3125 arg_class = (uint16_t) r;
3126 assert((int) arg_class == r);
3127
3128 break;
3129
3130 case ARG_LEGEND:
3131 r = parse_boolean_argument("--legend=", optarg, &arg_legend);
3132 if (r < 0)
3133 return r;
3134 break;
3135
3136 case 'p':
3137 if (streq(optarg, "help")) {
3138 help_protocol_types();
3139 return 0;
3140 } else if (streq(optarg, "dns"))
3141 arg_flags |= SD_RESOLVED_DNS;
3142 else if (streq(optarg, "llmnr"))
3143 arg_flags |= SD_RESOLVED_LLMNR;
3144 else if (streq(optarg, "llmnr-ipv4"))
3145 arg_flags |= SD_RESOLVED_LLMNR_IPV4;
3146 else if (streq(optarg, "llmnr-ipv6"))
3147 arg_flags |= SD_RESOLVED_LLMNR_IPV6;
3148 else if (streq(optarg, "mdns"))
3149 arg_flags |= SD_RESOLVED_MDNS;
3150 else if (streq(optarg, "mdns-ipv4"))
3151 arg_flags |= SD_RESOLVED_MDNS_IPV4;
3152 else if (streq(optarg, "mdns-ipv6"))
3153 arg_flags |= SD_RESOLVED_MDNS_IPV6;
3154 else
3155 return log_error_errno(SYNTHETIC_ERRNO(EINVAL),
3156 "Unknown protocol specifier: %s",
3157 optarg);
3158
3159 break;
3160
3161 case ARG_RAW:
3162 if (on_tty())
3163 return log_error_errno(SYNTHETIC_ERRNO(ENOTTY),
3164 "Refusing to write binary data to tty.");
3165
3166 if (optarg == NULL || streq(optarg, "payload"))
3167 arg_raw = RAW_PAYLOAD;
3168 else if (streq(optarg, "packet"))
3169 arg_raw = RAW_PACKET;
3170 else
3171 return log_error_errno(SYNTHETIC_ERRNO(EINVAL),
3172 "Unknown --raw specifier \"%s\".",
3173 optarg);
3174
3175 arg_legend = false;
3176 break;
3177
3178 case ARG_CNAME:
3179 r = parse_boolean_argument("--cname=", optarg, NULL);
3180 if (r < 0)
3181 return r;
3182 SET_FLAG(arg_flags, SD_RESOLVED_NO_CNAME, r == 0);
3183 break;
3184
3185 case ARG_VALIDATE:
3186 r = parse_boolean_argument("--validate=", optarg, NULL);
3187 if (r < 0)
3188 return r;
3189 SET_FLAG(arg_flags, SD_RESOLVED_NO_VALIDATE, r == 0);
3190 break;
3191
3192 case ARG_SYNTHESIZE:
3193 r = parse_boolean_argument("--synthesize=", optarg, NULL);
3194 if (r < 0)
3195 return r;
3196 SET_FLAG(arg_flags, SD_RESOLVED_NO_SYNTHESIZE, r == 0);
3197 break;
3198
3199 case ARG_CACHE:
3200 r = parse_boolean_argument("--cache=", optarg, NULL);
3201 if (r < 0)
3202 return r;
3203 SET_FLAG(arg_flags, SD_RESOLVED_NO_CACHE, r == 0);
3204 break;
3205
3206 case ARG_ZONE:
3207 r = parse_boolean_argument("--zone=", optarg, NULL);
3208 if (r < 0)
3209 return r;
3210 SET_FLAG(arg_flags, SD_RESOLVED_NO_ZONE, r == 0);
3211 break;
3212
3213 case ARG_TRUST_ANCHOR:
3214 r = parse_boolean_argument("--trust-anchor=", optarg, NULL);
3215 if (r < 0)
3216 return r;
3217 SET_FLAG(arg_flags, SD_RESOLVED_NO_TRUST_ANCHOR, r == 0);
3218 break;
3219
3220 case ARG_NETWORK:
3221 r = parse_boolean_argument("--network=", optarg, NULL);
3222 if (r < 0)
3223 return r;
3224 SET_FLAG(arg_flags, SD_RESOLVED_NO_NETWORK, r == 0);
3225 break;
3226
3227 case ARG_SERVICE_ADDRESS:
3228 r = parse_boolean_argument("--service-address=", optarg, NULL);
3229 if (r < 0)
3230 return r;
3231 SET_FLAG(arg_flags, SD_RESOLVED_NO_ADDRESS, r == 0);
3232 break;
3233
3234 case ARG_SERVICE_TXT:
3235 r = parse_boolean_argument("--service-txt=", optarg, NULL);
3236 if (r < 0)
3237 return r;
3238 SET_FLAG(arg_flags, SD_RESOLVED_NO_TXT, r == 0);
3239 break;
3240
3241 case ARG_SEARCH:
3242 r = parse_boolean_argument("--search=", optarg, NULL);
3243 if (r < 0)
3244 return r;
3245 SET_FLAG(arg_flags, SD_RESOLVED_NO_SEARCH, r == 0);
3246 break;
3247
3248 case ARG_NO_PAGER:
3249 arg_pager_flags |= PAGER_DISABLE;
3250 break;
3251
3252 case '?':
3253 return -EINVAL;
3254
3255 default:
3256 assert_not_reached("Unhandled option");
3257 }
3258
3259 if (arg_type == 0 && arg_class != 0)
3260 return log_error_errno(SYNTHETIC_ERRNO(EINVAL),
3261 "--class= may only be used in conjunction with --type=.");
3262
3263 if (arg_type != 0 && arg_class == 0)
3264 arg_class = DNS_CLASS_IN;
3265
3266 if (arg_class != 0 && arg_type == 0)
3267 arg_type = DNS_TYPE_A;
3268
3269 return 1 /* work to do */;
3270 }
3271
3272 static int native_main(int argc, char *argv[], sd_bus *bus) {
3273
3274 static const Verb verbs[] = {
3275 { "help", VERB_ANY, VERB_ANY, 0, verb_help },
3276 { "status", VERB_ANY, VERB_ANY, VERB_DEFAULT, verb_status },
3277 { "query", 2, VERB_ANY, 0, verb_query },
3278 { "service", 2, 4, 0, verb_service },
3279 { "openpgp", 2, VERB_ANY, 0, verb_openpgp },
3280 { "tlsa", 2, VERB_ANY, 0, verb_tlsa },
3281 { "statistics", VERB_ANY, 1, 0, show_statistics },
3282 { "reset-statistics", VERB_ANY, 1, 0, reset_statistics },
3283 { "flush-caches", VERB_ANY, 1, 0, flush_caches },
3284 { "reset-server-features", VERB_ANY, 1, 0, reset_server_features },
3285 { "dns", VERB_ANY, VERB_ANY, 0, verb_dns },
3286 { "domain", VERB_ANY, VERB_ANY, 0, verb_domain },
3287 { "default-route", VERB_ANY, 3, 0, verb_default_route },
3288 { "llmnr", VERB_ANY, 3, 0, verb_llmnr },
3289 { "mdns", VERB_ANY, 3, 0, verb_mdns },
3290 { "dnsovertls", VERB_ANY, 3, 0, verb_dns_over_tls },
3291 { "dnssec", VERB_ANY, 3, 0, verb_dnssec },
3292 { "nta", VERB_ANY, VERB_ANY, 0, verb_nta },
3293 { "revert", VERB_ANY, 2, 0, verb_revert_link },
3294 { "log-level", VERB_ANY, 2, 0, verb_log_level },
3295 {}
3296 };
3297
3298 return dispatch_verb(argc, argv, verbs, bus);
3299 }
3300
3301 static int translate(const char *verb, const char *single_arg, size_t num_args, char **args, sd_bus *bus) {
3302 char **fake, **p;
3303 size_t num;
3304
3305 assert(verb);
3306 assert(num_args == 0 || args);
3307
3308 num = !!single_arg + num_args + 1;
3309
3310 p = fake = newa0(char *, num + 1);
3311 *p++ = (char *) verb;
3312 if (single_arg)
3313 *p++ = (char *) single_arg;
3314 for (size_t i = 0; i < num_args; i++)
3315 *p++ = args[i];
3316
3317 optind = 0;
3318 return native_main((int) num, fake, bus);
3319 }
3320
3321 static int compat_main(int argc, char *argv[], sd_bus *bus) {
3322 int r = 0;
3323
3324 switch (arg_mode) {
3325 case MODE_RESOLVE_HOST:
3326 case MODE_RESOLVE_RECORD:
3327 return translate("query", NULL, argc - optind, argv + optind, bus);
3328
3329 case MODE_RESOLVE_SERVICE:
3330 return translate("service", NULL, argc - optind, argv + optind, bus);
3331
3332 case MODE_RESOLVE_OPENPGP:
3333 return translate("openpgp", NULL, argc - optind, argv + optind, bus);
3334
3335 case MODE_RESOLVE_TLSA:
3336 return translate("tlsa", arg_service_family, argc - optind, argv + optind, bus);
3337
3338 case MODE_STATISTICS:
3339 return translate("statistics", NULL, 0, NULL, bus);
3340
3341 case MODE_RESET_STATISTICS:
3342 return translate("reset-statistics", NULL, 0, NULL, bus);
3343
3344 case MODE_FLUSH_CACHES:
3345 return translate("flush-caches", NULL, 0, NULL, bus);
3346
3347 case MODE_RESET_SERVER_FEATURES:
3348 return translate("reset-server-features", NULL, 0, NULL, bus);
3349
3350 case MODE_STATUS:
3351 return translate("status", NULL, argc - optind, argv + optind, bus);
3352
3353 case MODE_SET_LINK:
3354 assert(arg_ifname);
3355
3356 if (arg_set_dns) {
3357 r = translate("dns", arg_ifname, strv_length(arg_set_dns), arg_set_dns, bus);
3358 if (r < 0)
3359 return r;
3360 }
3361
3362 if (arg_set_domain) {
3363 r = translate("domain", arg_ifname, strv_length(arg_set_domain), arg_set_domain, bus);
3364 if (r < 0)
3365 return r;
3366 }
3367
3368 if (arg_set_nta) {
3369 r = translate("nta", arg_ifname, strv_length(arg_set_nta), arg_set_nta, bus);
3370 if (r < 0)
3371 return r;
3372 }
3373
3374 if (arg_set_llmnr) {
3375 r = translate("llmnr", arg_ifname, 1, (char **) &arg_set_llmnr, bus);
3376 if (r < 0)
3377 return r;
3378 }
3379
3380 if (arg_set_mdns) {
3381 r = translate("mdns", arg_ifname, 1, (char **) &arg_set_mdns, bus);
3382 if (r < 0)
3383 return r;
3384 }
3385
3386 if (arg_set_dns_over_tls) {
3387 r = translate("dnsovertls", arg_ifname, 1, (char **) &arg_set_dns_over_tls, bus);
3388 if (r < 0)
3389 return r;
3390 }
3391
3392 if (arg_set_dnssec) {
3393 r = translate("dnssec", arg_ifname, 1, (char **) &arg_set_dnssec, bus);
3394 if (r < 0)
3395 return r;
3396 }
3397
3398 return r;
3399
3400 case MODE_REVERT_LINK:
3401 assert(arg_ifname);
3402
3403 return translate("revert", arg_ifname, 0, NULL, bus);
3404
3405 case _MODE_INVALID:
3406 assert_not_reached("invalid mode");
3407 }
3408
3409 return 0;
3410 }
3411
3412 static int run(int argc, char **argv) {
3413 _cleanup_(sd_bus_flush_close_unrefp) sd_bus *bus = NULL;
3414 int r;
3415
3416 setlocale(LC_ALL, "");
3417 log_setup();
3418
3419 if (invoked_as(argv, "resolvconf"))
3420 r = resolvconf_parse_argv(argc, argv);
3421 else if (invoked_as(argv, "systemd-resolve"))
3422 r = compat_parse_argv(argc, argv);
3423 else
3424 r = native_parse_argv(argc, argv);
3425 if (r <= 0)
3426 return r;
3427
3428 r = sd_bus_open_system(&bus);
3429 if (r < 0)
3430 return log_error_errno(r, "sd_bus_open_system: %m");
3431
3432 if (STR_IN_SET(program_invocation_short_name, "systemd-resolve", "resolvconf"))
3433 return compat_main(argc, argv, bus);
3434
3435 return native_main(argc, argv, bus);
3436 }
3437
3438 DEFINE_MAIN_FUNCTION(run);
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