]> git.ipfire.org Git - thirdparty/systemd.git/blob - src/resolve/resolvectl.c
projects / thirdparty / systemd.git / blob
? search:
summary | shortlog | log | commit | commitdiff | tree
blame | history | raw | HEAD
Merge pull request #15557 from poettering/journal-zero-fix
[thirdparty/systemd.git] / src / resolve / resolvectl.c
1 /* SPDX-License-Identifier: LGPL-2.1+ */
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-util.h"
15 #include "dns-domain.h"
16 #include "escape.h"
17 #include "format-table.h"
18 #include "format-util.h"
19 #include "gcrypt-util.h"
20 #include "main-func.h"
21 #include "missing_network.h"
22 #include "netlink-util.h"
23 #include "pager.h"
24 #include "parse-util.h"
25 #include "pretty-print.h"
26 #include "resolvconf-compat.h"
27 #include "resolvectl.h"
28 #include "resolved-def.h"
29 #include "resolved-dns-packet.h"
30 #include "socket-netlink.h"
31 #include "stdio-util.h"
32 #include "string-table.h"
33 #include "strv.h"
34 #include "terminal-util.h"
35 #include "verbs.h"
36
37 static int arg_family = AF_UNSPEC;
38 static int arg_ifindex = 0;
39 static char *arg_ifname = NULL;
40 static uint16_t arg_type = 0;
41 static uint16_t arg_class = 0;
42 static bool arg_legend = true;
43 static uint64_t arg_flags = 0;
44 static PagerFlags arg_pager_flags = 0;
45 bool arg_ifindex_permissive = false; /* If true, don't generate an error if the specified interface index doesn't exist */
46 static const char *arg_service_family = NULL;
47
48 typedef enum RawType {
49 RAW_NONE,
50 RAW_PAYLOAD,
51 RAW_PACKET,
52 } RawType;
53 static RawType arg_raw = RAW_NONE;
54
55 ExecutionMode arg_mode = MODE_RESOLVE_HOST;
56
57 char **arg_set_dns = NULL;
58 char **arg_set_domain = NULL;
59 static const char *arg_set_llmnr = NULL;
60 static const char *arg_set_mdns = NULL;
61 static const char *arg_set_dns_over_tls = NULL;
62 static const char *arg_set_dnssec = NULL;
63 static char **arg_set_nta = NULL;
64
65 STATIC_DESTRUCTOR_REGISTER(arg_ifname, freep);
66 STATIC_DESTRUCTOR_REGISTER(arg_set_dns, strv_freep);
67 STATIC_DESTRUCTOR_REGISTER(arg_set_domain, strv_freep);
68 STATIC_DESTRUCTOR_REGISTER(arg_set_nta, strv_freep);
69
70 typedef enum StatusMode {
71 STATUS_ALL,
72 STATUS_DNS,
73 STATUS_DOMAIN,
74 STATUS_DEFAULT_ROUTE,
75 STATUS_LLMNR,
76 STATUS_MDNS,
77 STATUS_PRIVATE,
78 STATUS_DNSSEC,
79 STATUS_NTA,
80 } StatusMode;
81
82 int ifname_mangle(const char *s) {
83 _cleanup_free_ char *iface = NULL;
84 const char *dot;
85 int ifi;
86
87 assert(s);
88
89 dot = strchr(s, '.');
90 if (dot) {
91 log_debug("Ignoring protocol specifier '%s'.", dot + 1);
92 iface = strndup(s, dot - s);
93
94 } else
95 iface = strdup(s);
96 if (!iface)
97 return log_oom();
98
99 ifi = resolve_interface(NULL, iface);
100 if (ifi < 0) {
101 if (ifi == -ENODEV && arg_ifindex_permissive) {
102 log_debug("Interface '%s' not found, but -f specified, ignoring.", iface);
103 return 0; /* done */
104 }
105
106 return log_error_errno(ifi, "Failed to resolve interface \"%s\": %m", iface);
107 }
108
109 if (arg_ifindex > 0 && arg_ifindex != ifi)
110 return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "Specified multiple different interfaces. Refusing.");
111
112 arg_ifindex = ifi;
113 free_and_replace(arg_ifname, iface);
114
115 return 1;
116 }
117
118 static void print_source(uint64_t flags, usec_t rtt) {
119 char rtt_str[FORMAT_TIMESTAMP_MAX];
120
121 if (!arg_legend)
122 return;
123
124 if (flags == 0)
125 return;
126
127 printf("\n%s-- Information acquired via", ansi_grey());
128
129 if (flags != 0)
130 printf(" protocol%s%s%s%s%s",
131 flags & SD_RESOLVED_DNS ? " DNS" :"",
132 flags & SD_RESOLVED_LLMNR_IPV4 ? " LLMNR/IPv4" : "",
133 flags & SD_RESOLVED_LLMNR_IPV6 ? " LLMNR/IPv6" : "",
134 flags & SD_RESOLVED_MDNS_IPV4 ? " mDNS/IPv4" : "",
135 flags & SD_RESOLVED_MDNS_IPV6 ? " mDNS/IPv6" : "");
136
137 assert_se(format_timespan(rtt_str, sizeof(rtt_str), rtt, 100));
138
139 printf(" in %s.%s\n"
140 "%s-- Data is authenticated: %s%s\n",
141 rtt_str, ansi_normal(),
142 ansi_grey(), yes_no(flags & SD_RESOLVED_AUTHENTICATED), ansi_normal());
143 }
144
145 static void print_ifindex_comment(int printed_so_far, int ifindex) {
146 char ifname[IF_NAMESIZE + 1];
147
148 if (ifindex <= 0)
149 return;
150
151 if (!format_ifname(ifindex, ifname))
152 log_warning_errno(errno, "Failed to resolve interface name for index %i, ignoring: %m", ifindex);
153 else
154 printf("%*s%s-- link: %s%s",
155 60 > printed_so_far ? 60 - printed_so_far : 0, " ", /* Align comment to the 60th column */
156 ansi_grey(), ifname, ansi_normal());
157 }
158
159 static int resolve_host(sd_bus *bus, const char *name) {
160 _cleanup_(sd_bus_message_unrefp) sd_bus_message *req = NULL, *reply = NULL;
161 _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
162 const char *canonical = NULL;
163 unsigned c = 0;
164 uint64_t flags;
165 usec_t ts;
166 int r;
167
168 assert(name);
169
170 log_debug("Resolving %s (family %s, interface %s).", name, af_to_name(arg_family) ?: "*", isempty(arg_ifname) ? "*" : arg_ifname);
171
172 r = bus_message_new_method_call(bus, &req, bus_resolve_mgr, "ResolveHostname");
173 if (r < 0)
174 return bus_log_create_error(r);
175
176 r = sd_bus_message_append(req, "isit", arg_ifindex, name, arg_family, arg_flags);
177 if (r < 0)
178 return bus_log_create_error(r);
179
180 ts = now(CLOCK_MONOTONIC);
181
182 r = sd_bus_call(bus, req, SD_RESOLVED_QUERY_TIMEOUT_USEC, &error, &reply);
183 if (r < 0)
184 return log_error_errno(r, "%s: resolve call failed: %s", name, bus_error_message(&error, r));
185
186 ts = now(CLOCK_MONOTONIC) - ts;
187
188 r = sd_bus_message_enter_container(reply, 'a', "(iiay)");
189 if (r < 0)
190 return bus_log_parse_error(r);
191
192 while ((r = sd_bus_message_enter_container(reply, 'r', "iiay")) > 0) {
193 _cleanup_free_ char *pretty = NULL;
194 int ifindex, family, k;
195 const void *a;
196 size_t sz;
197
198 assert_cc(sizeof(int) == sizeof(int32_t));
199
200 r = sd_bus_message_read(reply, "ii", &ifindex, &family);
201 if (r < 0)
202 return bus_log_parse_error(r);
203
204 r = sd_bus_message_read_array(reply, 'y', &a, &sz);
205 if (r < 0)
206 return bus_log_parse_error(r);
207
208 r = sd_bus_message_exit_container(reply);
209 if (r < 0)
210 return bus_log_parse_error(r);
211
212 if (!IN_SET(family, AF_INET, AF_INET6)) {
213 log_debug("%s: skipping entry with family %d (%s)", name, family, af_to_name(family) ?: "unknown");
214 continue;
215 }
216
217 if (sz != FAMILY_ADDRESS_SIZE(family)) {
218 log_error("%s: systemd-resolved returned address of invalid size %zu for family %s", name, sz, af_to_name(family) ?: "unknown");
219 return -EINVAL;
220 }
221
222 r = in_addr_ifindex_to_string(family, a, ifindex, &pretty);
223 if (r < 0)
224 return log_error_errno(r, "Failed to print address for %s: %m", name);
225
226 k = printf("%*s%s %s%s%s",
227 (int) strlen(name), c == 0 ? name : "", c == 0 ? ":" : " ",
228 ansi_highlight(), pretty, ansi_normal());
229
230 print_ifindex_comment(k, ifindex);
231 fputc('\n', stdout);
232
233 c++;
234 }
235 if (r < 0)
236 return bus_log_parse_error(r);
237
238 r = sd_bus_message_exit_container(reply);
239 if (r < 0)
240 return bus_log_parse_error(r);
241
242 r = sd_bus_message_read(reply, "st", &canonical, &flags);
243 if (r < 0)
244 return bus_log_parse_error(r);
245
246 if (!streq(name, canonical))
247 printf("%*s%s (%s)\n",
248 (int) strlen(name), c == 0 ? name : "", c == 0 ? ":" : " ",
249 canonical);
250
251 if (c == 0) {
252 log_error("%s: no addresses found", name);
253 return -ESRCH;
254 }
255
256 print_source(flags, ts);
257
258 return 0;
259 }
260
261 static int resolve_address(sd_bus *bus, int family, const union in_addr_union *address, int ifindex) {
262 _cleanup_(sd_bus_message_unrefp) sd_bus_message *req = NULL, *reply = NULL;
263 _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
264 _cleanup_free_ char *pretty = NULL;
265 uint64_t flags;
266 unsigned c = 0;
267 usec_t ts;
268 int r;
269
270 assert(bus);
271 assert(IN_SET(family, AF_INET, AF_INET6));
272 assert(address);
273
274 if (ifindex <= 0)
275 ifindex = arg_ifindex;
276
277 r = in_addr_ifindex_to_string(family, address, ifindex, &pretty);
278 if (r < 0)
279 return log_oom();
280
281 log_debug("Resolving %s.", pretty);
282
283 r = bus_message_new_method_call(bus, &req, bus_resolve_mgr, "ResolveAddress");
284 if (r < 0)
285 return bus_log_create_error(r);
286
287 r = sd_bus_message_append(req, "ii", ifindex, family);
288 if (r < 0)
289 return bus_log_create_error(r);
290
291 r = sd_bus_message_append_array(req, 'y', address, FAMILY_ADDRESS_SIZE(family));
292 if (r < 0)
293 return bus_log_create_error(r);
294
295 r = sd_bus_message_append(req, "t", arg_flags);
296 if (r < 0)
297 return bus_log_create_error(r);
298
299 ts = now(CLOCK_MONOTONIC);
300
301 r = sd_bus_call(bus, req, SD_RESOLVED_QUERY_TIMEOUT_USEC, &error, &reply);
302 if (r < 0)
303 return log_error_errno(r, "%s: resolve call failed: %s", pretty, bus_error_message(&error, r));
304
305 ts = now(CLOCK_MONOTONIC) - ts;
306
307 r = sd_bus_message_enter_container(reply, 'a', "(is)");
308 if (r < 0)
309 return bus_log_create_error(r);
310
311 while ((r = sd_bus_message_enter_container(reply, 'r', "is")) > 0) {
312 const char *n;
313 int k;
314
315 assert_cc(sizeof(int) == sizeof(int32_t));
316
317 r = sd_bus_message_read(reply, "is", &ifindex, &n);
318 if (r < 0)
319 return r;
320
321 r = sd_bus_message_exit_container(reply);
322 if (r < 0)
323 return r;
324
325 k = printf("%*s%s %s%s%s",
326 (int) strlen(pretty), c == 0 ? pretty : "",
327 c == 0 ? ":" : " ",
328 ansi_highlight(), n, ansi_normal());
329
330 print_ifindex_comment(k, ifindex);
331 fputc('\n', stdout);
332
333 c++;
334 }
335 if (r < 0)
336 return bus_log_parse_error(r);
337
338 r = sd_bus_message_exit_container(reply);
339 if (r < 0)
340 return bus_log_parse_error(r);
341
342 r = sd_bus_message_read(reply, "t", &flags);
343 if (r < 0)
344 return bus_log_parse_error(r);
345
346 if (c == 0) {
347 log_error("%s: no names found", pretty);
348 return -ESRCH;
349 }
350
351 print_source(flags, ts);
352
353 return 0;
354 }
355
356 static int output_rr_packet(const void *d, size_t l, int ifindex) {
357 _cleanup_(dns_resource_record_unrefp) DnsResourceRecord *rr = NULL;
358 _cleanup_(dns_packet_unrefp) DnsPacket *p = NULL;
359 int r;
360
361 r = dns_packet_new(&p, DNS_PROTOCOL_DNS, 0, DNS_PACKET_SIZE_MAX);
362 if (r < 0)
363 return log_oom();
364
365 p->refuse_compression = true;
366
367 r = dns_packet_append_blob(p, d, l, NULL);
368 if (r < 0)
369 return log_oom();
370
371 r = dns_packet_read_rr(p, &rr, NULL, NULL);
372 if (r < 0)
373 return log_error_errno(r, "Failed to parse RR: %m");
374
375 if (arg_raw == RAW_PAYLOAD) {
376 void *data;
377 ssize_t k;
378
379 k = dns_resource_record_payload(rr, &data);
380 if (k < 0)
381 return log_error_errno(k, "Cannot dump RR: %m");
382 fwrite(data, 1, k, stdout);
383 } else {
384 const char *s;
385 int k;
386
387 s = dns_resource_record_to_string(rr);
388 if (!s)
389 return log_oom();
390
391 k = printf("%s", s);
392 print_ifindex_comment(k, ifindex);
393 fputc('\n', stdout);
394 }
395
396 return 0;
397 }
398
399 static int resolve_record(sd_bus *bus, const char *name, uint16_t class, uint16_t type, bool warn_missing) {
400 _cleanup_(sd_bus_message_unrefp) sd_bus_message *req = NULL, *reply = NULL;
401 _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
402 unsigned n = 0;
403 uint64_t flags;
404 int r;
405 usec_t ts;
406 bool needs_authentication = false;
407
408 assert(name);
409
410 log_debug("Resolving %s %s %s (interface %s).", name, dns_class_to_string(class), dns_type_to_string(type), isempty(arg_ifname) ? "*" : arg_ifname);
411
412 r = bus_message_new_method_call(bus, &req, bus_resolve_mgr, "ResolveRecord");
413 if (r < 0)
414 return bus_log_create_error(r);
415
416 r = sd_bus_message_append(req, "isqqt", arg_ifindex, name, class, type, arg_flags);
417 if (r < 0)
418 return bus_log_create_error(r);
419
420 ts = now(CLOCK_MONOTONIC);
421
422 r = sd_bus_call(bus, req, SD_RESOLVED_QUERY_TIMEOUT_USEC, &error, &reply);
423 if (r < 0) {
424 if (warn_missing || r != -ENXIO)
425 log_error("%s: resolve call failed: %s", name, bus_error_message(&error, r));
426 return r;
427 }
428
429 ts = now(CLOCK_MONOTONIC) - ts;
430
431 r = sd_bus_message_enter_container(reply, 'a', "(iqqay)");
432 if (r < 0)
433 return bus_log_parse_error(r);
434
435 while ((r = sd_bus_message_enter_container(reply, 'r', "iqqay")) > 0) {
436 uint16_t c, t;
437 int ifindex;
438 const void *d;
439 size_t l;
440
441 assert_cc(sizeof(int) == sizeof(int32_t));
442
443 r = sd_bus_message_read(reply, "iqq", &ifindex, &c, &t);
444 if (r < 0)
445 return bus_log_parse_error(r);
446
447 r = sd_bus_message_read_array(reply, 'y', &d, &l);
448 if (r < 0)
449 return bus_log_parse_error(r);
450
451 r = sd_bus_message_exit_container(reply);
452 if (r < 0)
453 return bus_log_parse_error(r);
454
455 if (arg_raw == RAW_PACKET) {
456 uint64_t u64 = htole64(l);
457
458 fwrite(&u64, sizeof(u64), 1, stdout);
459 fwrite(d, 1, l, stdout);
460 } else {
461 r = output_rr_packet(d, l, ifindex);
462 if (r < 0)
463 return r;
464 }
465
466 if (dns_type_needs_authentication(t))
467 needs_authentication = true;
468
469 n++;
470 }
471 if (r < 0)
472 return bus_log_parse_error(r);
473
474 r = sd_bus_message_exit_container(reply);
475 if (r < 0)
476 return bus_log_parse_error(r);
477
478 r = sd_bus_message_read(reply, "t", &flags);
479 if (r < 0)
480 return bus_log_parse_error(r);
481
482 if (n == 0) {
483 if (warn_missing)
484 log_error("%s: no records found", name);
485 return -ESRCH;
486 }
487
488 print_source(flags, ts);
489
490 if ((flags & SD_RESOLVED_AUTHENTICATED) == 0 && needs_authentication) {
491 fflush(stdout);
492
493 fprintf(stderr, "\n%s"
494 "WARNING: The resources shown contain cryptographic key data which could not be\n"
495 " authenticated. It is not suitable to authenticate any communication.\n"
496 " This is usually indication that DNSSEC authentication was not enabled\n"
497 " or is not available for the selected protocol or DNS servers.%s\n",
498 ansi_highlight_red(),
499 ansi_normal());
500 }
501
502 return 0;
503 }
504
505 static int resolve_rfc4501(sd_bus *bus, const char *name) {
506 uint16_t type = 0, class = 0;
507 const char *p, *q, *n;
508 int r;
509
510 assert(bus);
511 assert(name);
512 assert(startswith(name, "dns:"));
513
514 /* Parse RFC 4501 dns: URIs */
515
516 p = name + 4;
517
518 if (p[0] == '/') {
519 const char *e;
520
521 if (p[1] != '/')
522 goto invalid;
523
524 e = strchr(p + 2, '/');
525 if (!e)
526 goto invalid;
527
528 if (e != p + 2)
529 log_warning("DNS authority specification not supported; ignoring specified authority.");
530
531 p = e + 1;
532 }
533
534 q = strchr(p, '?');
535 if (q) {
536 n = strndupa(p, q - p);
537 q++;
538
539 for (;;) {
540 const char *f;
541
542 f = startswith_no_case(q, "class=");
543 if (f) {
544 _cleanup_free_ char *t = NULL;
545 const char *e;
546
547 if (class != 0)
548 return log_error_errno(SYNTHETIC_ERRNO(EINVAL),
549 "DNS class specified twice.");
550
551 e = strchrnul(f, ';');
552 t = strndup(f, e - f);
553 if (!t)
554 return log_oom();
555
556 r = dns_class_from_string(t);
557 if (r < 0)
558 return log_error_errno(SYNTHETIC_ERRNO(EINVAL),
559 "Unknown DNS class %s.", t);
560
561 class = r;
562
563 if (*e == ';') {
564 q = e + 1;
565 continue;
566 }
567
568 break;
569 }
570
571 f = startswith_no_case(q, "type=");
572 if (f) {
573 _cleanup_free_ char *t = NULL;
574 const char *e;
575
576 if (type != 0)
577 return log_error_errno(SYNTHETIC_ERRNO(EINVAL),
578 "DNS type specified twice.");
579
580 e = strchrnul(f, ';');
581 t = strndup(f, e - f);
582 if (!t)
583 return log_oom();
584
585 r = dns_type_from_string(t);
586 if (r < 0)
587 return log_error_errno(SYNTHETIC_ERRNO(EINVAL),
588 "Unknown DNS type %s.", t);
589
590 type = r;
591
592 if (*e == ';') {
593 q = e + 1;
594 continue;
595 }
596
597 break;
598 }
599
600 goto invalid;
601 }
602 } else
603 n = p;
604
605 if (class == 0)
606 class = arg_class ?: DNS_CLASS_IN;
607 if (type == 0)
608 type = arg_type ?: DNS_TYPE_A;
609
610 return resolve_record(bus, n, class, type, true);
611
612 invalid:
613 return log_error_errno(SYNTHETIC_ERRNO(EINVAL),
614 "Invalid DNS URI: %s", name);
615 }
616
617 static int verb_query(int argc, char **argv, void *userdata) {
618 sd_bus *bus = userdata;
619 char **p;
620 int q, r = 0;
621
622 if (arg_type != 0)
623 STRV_FOREACH(p, argv + 1) {
624 q = resolve_record(bus, *p, arg_class, arg_type, true);
625 if (q < 0)
626 r = q;
627 }
628
629 else
630 STRV_FOREACH(p, argv + 1) {
631 if (startswith(*p, "dns:"))
632 q = resolve_rfc4501(bus, *p);
633 else {
634 int family, ifindex;
635 union in_addr_union a;
636
637 q = in_addr_ifindex_from_string_auto(*p, &family, &a, &ifindex);
638 if (q >= 0)
639 q = resolve_address(bus, family, &a, ifindex);
640 else
641 q = resolve_host(bus, *p);
642 }
643 if (q < 0)
644 r = q;
645 }
646
647 return r;
648 }
649
650 static int resolve_service(sd_bus *bus, const char *name, const char *type, const char *domain) {
651 const char *canonical_name, *canonical_type, *canonical_domain;
652 _cleanup_(sd_bus_message_unrefp) sd_bus_message *req = NULL, *reply = NULL;
653 _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
654 size_t indent, sz;
655 uint64_t flags;
656 const char *p;
657 unsigned c;
658 usec_t ts;
659 int r;
660
661 assert(bus);
662 assert(domain);
663
664 name = empty_to_null(name);
665 type = empty_to_null(type);
666
667 if (name)
668 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);
669 else if (type)
670 log_debug("Resolving service type %s of %s (family %s, interface %s).", type, domain, af_to_name(arg_family) ?: "*", isempty(arg_ifname) ? "*" : arg_ifname);
671 else
672 log_debug("Resolving service type %s (family %s, interface %s).", domain, af_to_name(arg_family) ?: "*", isempty(arg_ifname) ? "*" : arg_ifname);
673
674 r = bus_message_new_method_call(bus, &req, bus_resolve_mgr, "ResolveService");
675 if (r < 0)
676 return bus_log_create_error(r);
677
678 r = sd_bus_message_append(req, "isssit", arg_ifindex, name, type, domain, arg_family, arg_flags);
679 if (r < 0)
680 return bus_log_create_error(r);
681
682 ts = now(CLOCK_MONOTONIC);
683
684 r = sd_bus_call(bus, req, SD_RESOLVED_QUERY_TIMEOUT_USEC, &error, &reply);
685 if (r < 0)
686 return log_error_errno(r, "Resolve call failed: %s", bus_error_message(&error, r));
687
688 ts = now(CLOCK_MONOTONIC) - ts;
689
690 r = sd_bus_message_enter_container(reply, 'a', "(qqqsa(iiay)s)");
691 if (r < 0)
692 return bus_log_parse_error(r);
693
694 indent =
695 (name ? strlen(name) + 1 : 0) +
696 (type ? strlen(type) + 1 : 0) +
697 strlen(domain) + 2;
698
699 c = 0;
700 while ((r = sd_bus_message_enter_container(reply, 'r', "qqqsa(iiay)s")) > 0) {
701 uint16_t priority, weight, port;
702 const char *hostname, *canonical;
703
704 r = sd_bus_message_read(reply, "qqqs", &priority, &weight, &port, &hostname);
705 if (r < 0)
706 return bus_log_parse_error(r);
707
708 if (name)
709 printf("%*s%s", (int) strlen(name), c == 0 ? name : "", c == 0 ? "/" : " ");
710 if (type)
711 printf("%*s%s", (int) strlen(type), c == 0 ? type : "", c == 0 ? "/" : " ");
712
713 printf("%*s%s %s:%u [priority=%u, weight=%u]\n",
714 (int) strlen(domain), c == 0 ? domain : "",
715 c == 0 ? ":" : " ",
716 hostname, port,
717 priority, weight);
718
719 r = sd_bus_message_enter_container(reply, 'a', "(iiay)");
720 if (r < 0)
721 return bus_log_parse_error(r);
722
723 while ((r = sd_bus_message_enter_container(reply, 'r', "iiay")) > 0) {
724 _cleanup_free_ char *pretty = NULL;
725 int ifindex, family, k;
726 const void *a;
727
728 assert_cc(sizeof(int) == sizeof(int32_t));
729
730 r = sd_bus_message_read(reply, "ii", &ifindex, &family);
731 if (r < 0)
732 return bus_log_parse_error(r);
733
734 r = sd_bus_message_read_array(reply, 'y', &a, &sz);
735 if (r < 0)
736 return bus_log_parse_error(r);
737
738 r = sd_bus_message_exit_container(reply);
739 if (r < 0)
740 return bus_log_parse_error(r);
741
742 if (!IN_SET(family, AF_INET, AF_INET6)) {
743 log_debug("%s: skipping entry with family %d (%s)", name, family, af_to_name(family) ?: "unknown");
744 continue;
745 }
746
747 if (sz != FAMILY_ADDRESS_SIZE(family)) {
748 log_error("%s: systemd-resolved returned address of invalid size %zu for family %s", name, sz, af_to_name(family) ?: "unknown");
749 return -EINVAL;
750 }
751
752 r = in_addr_ifindex_to_string(family, a, ifindex, &pretty);
753 if (r < 0)
754 return log_error_errno(r, "Failed to print address for %s: %m", name);
755
756 k = printf("%*s%s", (int) indent, "", pretty);
757 print_ifindex_comment(k, ifindex);
758 fputc('\n', stdout);
759 }
760 if (r < 0)
761 return bus_log_parse_error(r);
762
763 r = sd_bus_message_exit_container(reply);
764 if (r < 0)
765 return bus_log_parse_error(r);
766
767 r = sd_bus_message_read(reply, "s", &canonical);
768 if (r < 0)
769 return bus_log_parse_error(r);
770
771 if (!streq(hostname, canonical))
772 printf("%*s(%s)\n", (int) indent, "", canonical);
773
774 r = sd_bus_message_exit_container(reply);
775 if (r < 0)
776 return bus_log_parse_error(r);
777
778 c++;
779 }
780 if (r < 0)
781 return bus_log_parse_error(r);
782
783 r = sd_bus_message_exit_container(reply);
784 if (r < 0)
785 return bus_log_parse_error(r);
786
787 r = sd_bus_message_enter_container(reply, 'a', "ay");
788 if (r < 0)
789 return bus_log_parse_error(r);
790
791 while ((r = sd_bus_message_read_array(reply, 'y', (const void**) &p, &sz)) > 0) {
792 _cleanup_free_ char *escaped = NULL;
793
794 escaped = cescape_length(p, sz);
795 if (!escaped)
796 return log_oom();
797
798 printf("%*s%s\n", (int) indent, "", escaped);
799 }
800 if (r < 0)
801 return bus_log_parse_error(r);
802
803 r = sd_bus_message_exit_container(reply);
804 if (r < 0)
805 return bus_log_parse_error(r);
806
807 r = sd_bus_message_read(reply, "ssst", &canonical_name, &canonical_type, &canonical_domain, &flags);
808 if (r < 0)
809 return bus_log_parse_error(r);
810
811 canonical_name = empty_to_null(canonical_name);
812 canonical_type = empty_to_null(canonical_type);
813
814 if (!streq_ptr(name, canonical_name) ||
815 !streq_ptr(type, canonical_type) ||
816 !streq_ptr(domain, canonical_domain)) {
817
818 printf("%*s(", (int) indent, "");
819
820 if (canonical_name)
821 printf("%s/", canonical_name);
822 if (canonical_type)
823 printf("%s/", canonical_type);
824
825 printf("%s)\n", canonical_domain);
826 }
827
828 print_source(flags, ts);
829
830 return 0;
831 }
832
833 static int verb_service(int argc, char **argv, void *userdata) {
834 sd_bus *bus = userdata;
835
836 if (argc == 2)
837 return resolve_service(bus, NULL, NULL, argv[1]);
838 else if (argc == 3)
839 return resolve_service(bus, NULL, argv[1], argv[2]);
840 else
841 return resolve_service(bus, argv[1], argv[2], argv[3]);
842 }
843
844 static int resolve_openpgp(sd_bus *bus, const char *address) {
845 const char *domain, *full;
846 int r;
847 _cleanup_free_ char *hashed = NULL;
848
849 assert(bus);
850 assert(address);
851
852 domain = strrchr(address, '@');
853 if (!domain)
854 return log_error_errno(SYNTHETIC_ERRNO(EINVAL),
855 "Address does not contain '@': \"%s\"", address);
856 if (domain == address || domain[1] == '\0')
857 return log_error_errno(SYNTHETIC_ERRNO(EINVAL),
858 "Address starts or ends with '@': \"%s\"", address);
859 domain++;
860
861 r = string_hashsum_sha256(address, domain - 1 - address, &hashed);
862 if (r < 0)
863 return log_error_errno(r, "Hashing failed: %m");
864
865 strshorten(hashed, 56);
866
867 full = strjoina(hashed, "._openpgpkey.", domain);
868 log_debug("Looking up \"%s\".", full);
869
870 r = resolve_record(bus, full,
871 arg_class ?: DNS_CLASS_IN,
872 arg_type ?: DNS_TYPE_OPENPGPKEY, false);
873
874 if (IN_SET(r, -ENXIO, -ESRCH)) { /* NXDOMAIN or NODATA? */
875 hashed = mfree(hashed);
876 r = string_hashsum_sha224(address, domain - 1 - address, &hashed);
877 if (r < 0)
878 return log_error_errno(r, "Hashing failed: %m");
879
880 full = strjoina(hashed, "._openpgpkey.", domain);
881 log_debug("Looking up \"%s\".", full);
882
883 return resolve_record(bus, full,
884 arg_class ?: DNS_CLASS_IN,
885 arg_type ?: DNS_TYPE_OPENPGPKEY, true);
886 }
887
888 return r;
889 }
890
891 static int verb_openpgp(int argc, char **argv, void *userdata) {
892 sd_bus *bus = userdata;
893 char **p;
894 int q, r = 0;
895
896 STRV_FOREACH(p, argv + 1) {
897 q = resolve_openpgp(bus, *p);
898 if (q < 0)
899 r = q;
900 }
901
902 return r;
903 }
904
905 static int resolve_tlsa(sd_bus *bus, const char *family, const char *address) {
906 const char *port;
907 uint16_t port_num = 443;
908 _cleanup_free_ char *full = NULL;
909 int r;
910
911 assert(bus);
912 assert(address);
913
914 port = strrchr(address, ':');
915 if (port) {
916 r = parse_ip_port(port + 1, &port_num);
917 if (r < 0)
918 return log_error_errno(r, "Invalid port \"%s\".", port + 1);
919
920 address = strndupa(address, port - address);
921 }
922
923 r = asprintf(&full, "_%u._%s.%s",
924 port_num,
925 family,
926 address);
927 if (r < 0)
928 return log_oom();
929
930 log_debug("Looking up \"%s\".", full);
931
932 return resolve_record(bus, full,
933 arg_class ?: DNS_CLASS_IN,
934 arg_type ?: DNS_TYPE_TLSA, true);
935 }
936
937 static bool service_family_is_valid(const char *s) {
938 return STR_IN_SET(s, "tcp", "udp", "sctp");
939 }
940
941 static int verb_tlsa(int argc, char **argv, void *userdata) {
942 sd_bus *bus = userdata;
943 char **p, **args = argv + 1;
944 const char *family = "tcp";
945 int q, r = 0;
946
947 if (service_family_is_valid(argv[1])) {
948 family = argv[1];
949 args++;
950 }
951
952 STRV_FOREACH(p, args) {
953 q = resolve_tlsa(bus, family, *p);
954 if (q < 0)
955 r = q;
956 }
957
958 return r;
959 }
960
961 static int show_statistics(int argc, char **argv, void *userdata) {
962 _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
963 _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL;
964 _cleanup_(table_unrefp) Table *table = NULL;
965 sd_bus *bus = userdata;
966 uint64_t n_current_transactions, n_total_transactions,
967 cache_size, n_cache_hit, n_cache_miss,
968 n_dnssec_secure, n_dnssec_insecure, n_dnssec_bogus, n_dnssec_indeterminate;
969 int r, dnssec_supported;
970
971 assert(bus);
972
973 r = bus_get_property_trivial(bus, bus_resolve_mgr, "DNSSECSupported", &error, 'b', &dnssec_supported);
974 if (r < 0)
975 return log_error_errno(r, "Failed to get DNSSEC supported state: %s", bus_error_message(&error, r));
976
977 printf("DNSSEC supported by current servers: %s%s%s\n\n",
978 ansi_highlight(),
979 yes_no(dnssec_supported),
980 ansi_normal());
981
982 r = bus_get_property(bus, bus_resolve_mgr, "TransactionStatistics", &error, &reply, "(tt)");
983 if (r < 0)
984 return log_error_errno(r, "Failed to get transaction statistics: %s", bus_error_message(&error, r));
985
986 r = sd_bus_message_read(reply, "(tt)",
987 &n_current_transactions,
988 &n_total_transactions);
989 if (r < 0)
990 return bus_log_parse_error(r);
991
992 reply = sd_bus_message_unref(reply);
993
994 r = bus_get_property(bus, bus_resolve_mgr, "CacheStatistics", &error, &reply, "(ttt)");
995 if (r < 0)
996 return log_error_errno(r, "Failed to get cache statistics: %s", bus_error_message(&error, r));
997
998 r = sd_bus_message_read(reply, "(ttt)",
999 &cache_size,
1000 &n_cache_hit,
1001 &n_cache_miss);
1002 if (r < 0)
1003 return bus_log_parse_error(r);
1004
1005 reply = sd_bus_message_unref(reply);
1006
1007 r = bus_get_property(bus, bus_resolve_mgr, "DNSSECStatistics", &error, &reply, "(tttt)");
1008 if (r < 0)
1009 return log_error_errno(r, "Failed to get DNSSEC statistics: %s", bus_error_message(&error, r));
1010
1011 r = sd_bus_message_read(reply, "(tttt)",
1012 &n_dnssec_secure,
1013 &n_dnssec_insecure,
1014 &n_dnssec_bogus,
1015 &n_dnssec_indeterminate);
1016 if (r < 0)
1017 return bus_log_parse_error(r);
1018
1019 table = table_new("key", "value");
1020 if (!table)
1021 return log_oom();
1022
1023 table_set_header(table, false);
1024
1025 r = table_add_many(table,
1026 TABLE_STRING, "Transactions",
1027 TABLE_SET_COLOR, ansi_highlight(),
1028 TABLE_EMPTY,
1029 TABLE_STRING, "Current Transactions:",
1030 TABLE_SET_ALIGN_PERCENT, 100,
1031 TABLE_UINT64, n_current_transactions,
1032 TABLE_STRING, "Total Transactions:",
1033 TABLE_UINT64, n_total_transactions,
1034 TABLE_EMPTY, TABLE_EMPTY,
1035 TABLE_STRING, "Cache",
1036 TABLE_SET_COLOR, ansi_highlight(),
1037 TABLE_SET_ALIGN_PERCENT, 0,
1038 TABLE_EMPTY,
1039 TABLE_STRING, "Current Cache Size:",
1040 TABLE_SET_ALIGN_PERCENT, 100,
1041 TABLE_UINT64, cache_size,
1042 TABLE_STRING, "Cache Hits:",
1043 TABLE_UINT64, n_cache_hit,
1044 TABLE_STRING, "Cache Misses:",
1045 TABLE_UINT64, n_cache_miss,
1046 TABLE_EMPTY, TABLE_EMPTY,
1047 TABLE_STRING, "DNSSEC Verdicts",
1048 TABLE_SET_COLOR, ansi_highlight(),
1049 TABLE_SET_ALIGN_PERCENT, 0,
1050 TABLE_EMPTY,
1051 TABLE_STRING, "Secure:",
1052 TABLE_SET_ALIGN_PERCENT, 100,
1053 TABLE_UINT64, n_dnssec_secure,
1054 TABLE_STRING, "Insecure:",
1055 TABLE_UINT64, n_dnssec_insecure,
1056 TABLE_STRING, "Bogus:",
1057 TABLE_UINT64, n_dnssec_bogus,
1058 TABLE_STRING, "Indeterminate:",
1059 TABLE_UINT64, n_dnssec_indeterminate);
1060 if (r < 0)
1061 table_log_add_error(r);
1062
1063 r = table_print(table, NULL);
1064 if (r < 0)
1065 return log_error_errno(r, "Failed to print table: %m");
1066
1067 return 0;
1068 }
1069
1070 static int reset_statistics(int argc, char **argv, void *userdata) {
1071 _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
1072 sd_bus *bus = userdata;
1073 int r;
1074
1075 r = bus_call_method(bus, bus_resolve_mgr, "ResetStatistics", &error, NULL, NULL);
1076 if (r < 0)
1077 return log_error_errno(r, "Failed to reset statistics: %s", bus_error_message(&error, r));
1078
1079 return 0;
1080 }
1081
1082 static int flush_caches(int argc, char **argv, void *userdata) {
1083 _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
1084 sd_bus *bus = userdata;
1085 int r;
1086
1087 r = bus_call_method(bus, bus_resolve_mgr, "FlushCaches", &error, NULL, NULL);
1088 if (r < 0)
1089 return log_error_errno(r, "Failed to flush caches: %s", bus_error_message(&error, r));
1090
1091 return 0;
1092 }
1093
1094 static int reset_server_features(int argc, char **argv, void *userdata) {
1095 _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
1096 sd_bus *bus = userdata;
1097 int r;
1098
1099 r = bus_call_method(bus, bus_resolve_mgr, "ResetServerFeatures", &error, NULL, NULL);
1100 if (r < 0)
1101 return log_error_errno(r, "Failed to reset server features: %s", bus_error_message(&error, r));
1102
1103 return 0;
1104 }
1105
1106 static int read_dns_server_one(sd_bus_message *m, bool with_ifindex, char **ret) {
1107 _cleanup_free_ char *pretty = NULL;
1108 int ifindex, family, r;
1109 const void *a;
1110 size_t sz;
1111
1112 assert(m);
1113 assert(ret);
1114
1115 r = sd_bus_message_enter_container(m, 'r', with_ifindex ? "iiay" : "iay");
1116 if (r <= 0)
1117 return r;
1118
1119 if (with_ifindex) {
1120 r = sd_bus_message_read(m, "i", &ifindex);
1121 if (r < 0)
1122 return r;
1123 }
1124
1125 r = sd_bus_message_read(m, "i", &family);
1126 if (r < 0)
1127 return r;
1128
1129 r = sd_bus_message_read_array(m, 'y', &a, &sz);
1130 if (r < 0)
1131 return r;
1132
1133 r = sd_bus_message_exit_container(m);
1134 if (r < 0)
1135 return r;
1136
1137 if (with_ifindex && ifindex != 0) {
1138 /* only show the global ones here */
1139 *ret = NULL;
1140 return 1;
1141 }
1142
1143 if (!IN_SET(family, AF_INET, AF_INET6)) {
1144 log_debug("Unexpected family, ignoring: %i", family);
1145
1146 *ret = NULL;
1147 return 1;
1148 }
1149
1150 if (sz != FAMILY_ADDRESS_SIZE(family)) {
1151 log_debug("Address size mismatch, ignoring.");
1152
1153 *ret = NULL;
1154 return 1;
1155 }
1156
1157 r = in_addr_to_string(family, a, &pretty);
1158 if (r < 0)
1159 return r;
1160
1161 *ret = TAKE_PTR(pretty);
1162
1163 return 1;
1164 }
1165
1166 static int map_link_dns_servers(sd_bus *bus, const char *member, sd_bus_message *m, sd_bus_error *error, void *userdata) {
1167 char ***l = userdata;
1168 int r;
1169
1170 assert(bus);
1171 assert(member);
1172 assert(m);
1173 assert(l);
1174
1175 r = sd_bus_message_enter_container(m, 'a', "(iay)");
1176 if (r < 0)
1177 return r;
1178
1179 for (;;) {
1180 _cleanup_free_ char *pretty = NULL;
1181
1182 r = read_dns_server_one(m, false, &pretty);
1183 if (r < 0)
1184 return r;
1185 if (r == 0)
1186 break;
1187
1188 if (isempty(pretty))
1189 continue;
1190
1191 r = strv_consume(l, TAKE_PTR(pretty));
1192 if (r < 0)
1193 return r;
1194 }
1195
1196 r = sd_bus_message_exit_container(m);
1197 if (r < 0)
1198 return r;
1199
1200 return 0;
1201 }
1202
1203 static int map_link_current_dns_server(sd_bus *bus, const char *member, sd_bus_message *m, sd_bus_error *error, void *userdata) {
1204 assert(m);
1205 assert(userdata);
1206
1207 return read_dns_server_one(m, false, userdata);
1208 }
1209
1210 static int read_domain_one(sd_bus_message *m, bool with_ifindex, char **ret) {
1211 _cleanup_free_ char *str = NULL;
1212 int ifindex, route_only, r;
1213 const char *domain;
1214
1215 assert(m);
1216 assert(ret);
1217
1218 if (with_ifindex)
1219 r = sd_bus_message_read(m, "(isb)", &ifindex, &domain, &route_only);
1220 else
1221 r = sd_bus_message_read(m, "(sb)", &domain, &route_only);
1222 if (r <= 0)
1223 return r;
1224
1225 if (with_ifindex && ifindex != 0) {
1226 /* only show the global ones here */
1227 *ret = NULL;
1228 return 1;
1229 }
1230
1231 if (route_only)
1232 str = strjoin("~", domain);
1233 else
1234 str = strdup(domain);
1235 if (!str)
1236 return -ENOMEM;
1237
1238 *ret = TAKE_PTR(str);
1239
1240 return 1;
1241 }
1242
1243 static int map_link_domains(sd_bus *bus, const char *member, sd_bus_message *m, sd_bus_error *error, void *userdata) {
1244 char ***l = userdata;
1245 int r;
1246
1247 assert(bus);
1248 assert(member);
1249 assert(m);
1250 assert(l);
1251
1252 r = sd_bus_message_enter_container(m, 'a', "(sb)");
1253 if (r < 0)
1254 return r;
1255
1256 for (;;) {
1257 _cleanup_free_ char *pretty = NULL;
1258
1259 r = read_domain_one(m, false, &pretty);
1260 if (r < 0)
1261 return r;
1262 if (r == 0)
1263 break;
1264
1265 if (isempty(pretty))
1266 continue;
1267
1268 r = strv_consume(l, TAKE_PTR(pretty));
1269 if (r < 0)
1270 return r;
1271 }
1272
1273 r = sd_bus_message_exit_container(m);
1274 if (r < 0)
1275 return r;
1276
1277 return 0;
1278 }
1279
1280 static int status_print_strv_ifindex(int ifindex, const char *ifname, char **p) {
1281 char **i;
1282
1283 printf("%sLink %i (%s)%s:",
1284 ansi_highlight(), ifindex, ifname, ansi_normal());
1285
1286 STRV_FOREACH(i, p)
1287 printf(" %s", *i);
1288
1289 printf("\n");
1290
1291 return 0;
1292 }
1293
1294 struct link_info {
1295 uint64_t scopes_mask;
1296 const char *llmnr;
1297 const char *mdns;
1298 const char *dns_over_tls;
1299 const char *dnssec;
1300 char *current_dns;
1301 char **dns;
1302 char **domains;
1303 char **ntas;
1304 bool dnssec_supported;
1305 bool default_route;
1306 };
1307
1308 static void link_info_clear(struct link_info *p) {
1309 free(p->current_dns);
1310 strv_free(p->dns);
1311 strv_free(p->domains);
1312 strv_free(p->ntas);
1313 }
1314
1315 static int dump_list(Table *table, const char *prefix, char * const *l) {
1316 int r;
1317
1318 if (strv_isempty(l))
1319 return 0;
1320
1321 r = table_add_many(table,
1322 TABLE_STRING, prefix,
1323 TABLE_STRV, l);
1324 if (r < 0)
1325 return table_log_add_error(r);
1326
1327 return 0;
1328 }
1329
1330 static int status_ifindex(sd_bus *bus, int ifindex, const char *name, StatusMode mode, bool *empty_line) {
1331 static const struct bus_properties_map property_map[] = {
1332 { "ScopesMask", "t", NULL, offsetof(struct link_info, scopes_mask) },
1333 { "DNS", "a(iay)", map_link_dns_servers, offsetof(struct link_info, dns) },
1334 { "CurrentDNSServer", "(iay)", map_link_current_dns_server, offsetof(struct link_info, current_dns) },
1335 { "Domains", "a(sb)", map_link_domains, offsetof(struct link_info, domains) },
1336 { "DefaultRoute", "b", NULL, offsetof(struct link_info, default_route) },
1337 { "LLMNR", "s", NULL, offsetof(struct link_info, llmnr) },
1338 { "MulticastDNS", "s", NULL, offsetof(struct link_info, mdns) },
1339 { "DNSOverTLS", "s", NULL, offsetof(struct link_info, dns_over_tls) },
1340 { "DNSSEC", "s", NULL, offsetof(struct link_info, dnssec) },
1341 { "DNSSECNegativeTrustAnchors", "as", NULL, offsetof(struct link_info, ntas) },
1342 { "DNSSECSupported", "b", NULL, offsetof(struct link_info, dnssec_supported) },
1343 {}
1344 };
1345 _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
1346 _cleanup_(sd_bus_message_unrefp) sd_bus_message *m = NULL;
1347 _cleanup_(link_info_clear) struct link_info link_info = {};
1348 _cleanup_(table_unrefp) Table *table = NULL;
1349 _cleanup_free_ char *p = NULL;
1350 char ifi[DECIMAL_STR_MAX(int)], ifname[IF_NAMESIZE + 1] = "";
1351 int r;
1352
1353 assert(bus);
1354 assert(ifindex > 0);
1355
1356 if (!name) {
1357 if (!format_ifname(ifindex, ifname))
1358 return log_error_errno(errno, "Failed to resolve interface name for %i: %m", ifindex);
1359
1360 name = ifname;
1361 }
1362
1363 xsprintf(ifi, "%i", ifindex);
1364 r = sd_bus_path_encode("/org/freedesktop/resolve1/link", ifi, &p);
1365 if (r < 0)
1366 return log_oom();
1367
1368 r = bus_map_all_properties(bus,
1369 "org.freedesktop.resolve1",
1370 p,
1371 property_map,
1372 BUS_MAP_BOOLEAN_AS_BOOL,
1373 &error,
1374 &m,
1375 &link_info);
1376 if (r < 0)
1377 return log_error_errno(r, "Failed to get link data for %i: %s", ifindex, bus_error_message(&error, r));
1378
1379 (void) pager_open(arg_pager_flags);
1380
1381 if (mode == STATUS_DNS)
1382 return status_print_strv_ifindex(ifindex, name, link_info.dns);
1383
1384 if (mode == STATUS_DOMAIN)
1385 return status_print_strv_ifindex(ifindex, name, link_info.domains);
1386
1387 if (mode == STATUS_NTA)
1388 return status_print_strv_ifindex(ifindex, name, link_info.ntas);
1389
1390 if (mode == STATUS_DEFAULT_ROUTE) {
1391 printf("%sLink %i (%s)%s: %s\n",
1392 ansi_highlight(), ifindex, name, ansi_normal(),
1393 yes_no(link_info.default_route));
1394
1395 return 0;
1396 }
1397
1398 if (mode == STATUS_LLMNR) {
1399 printf("%sLink %i (%s)%s: %s\n",
1400 ansi_highlight(), ifindex, name, ansi_normal(),
1401 strna(link_info.llmnr));
1402
1403 return 0;
1404 }
1405
1406 if (mode == STATUS_MDNS) {
1407 printf("%sLink %i (%s)%s: %s\n",
1408 ansi_highlight(), ifindex, name, ansi_normal(),
1409 strna(link_info.mdns));
1410
1411 return 0;
1412 }
1413
1414 if (mode == STATUS_PRIVATE) {
1415 printf("%sLink %i (%s)%s: %s\n",
1416 ansi_highlight(), ifindex, name, ansi_normal(),
1417 strna(link_info.dns_over_tls));
1418
1419 return 0;
1420 }
1421
1422 if (mode == STATUS_DNSSEC) {
1423 printf("%sLink %i (%s)%s: %s\n",
1424 ansi_highlight(), ifindex, name, ansi_normal(),
1425 strna(link_info.dnssec));
1426
1427 return 0;
1428 }
1429
1430 if (empty_line && *empty_line)
1431 fputc('\n', stdout);
1432
1433 printf("%sLink %i (%s)%s\n",
1434 ansi_highlight(), ifindex, name, ansi_normal());
1435
1436 table = table_new("key", "value");
1437 if (!table)
1438 return log_oom();
1439
1440 table_set_header(table, false);
1441
1442 r = table_add_many(table,
1443 TABLE_STRING, "Current Scopes:",
1444 TABLE_SET_ALIGN_PERCENT, 100);
1445 if (r < 0)
1446 return table_log_add_error(r);
1447
1448 if (link_info.scopes_mask == 0)
1449 r = table_add_cell(table, NULL, TABLE_STRING, "none");
1450 else {
1451 _cleanup_free_ char *buf = NULL;
1452 size_t len;
1453
1454 if (asprintf(&buf, "%s%s%s%s%s",
1455 link_info.scopes_mask & SD_RESOLVED_DNS ? "DNS " : "",
1456 link_info.scopes_mask & SD_RESOLVED_LLMNR_IPV4 ? "LLMNR/IPv4 " : "",
1457 link_info.scopes_mask & SD_RESOLVED_LLMNR_IPV6 ? "LLMNR/IPv6 " : "",
1458 link_info.scopes_mask & SD_RESOLVED_MDNS_IPV4 ? "mDNS/IPv4 " : "",
1459 link_info.scopes_mask & SD_RESOLVED_MDNS_IPV6 ? "mDNS/IPv6 " : "") < 0)
1460 return log_oom();
1461
1462 len = strlen(buf);
1463 assert(len > 0);
1464 buf[len - 1] = '\0';
1465
1466 r = table_add_cell(table, NULL, TABLE_STRING, buf);
1467 }
1468 if (r < 0)
1469 return table_log_add_error(r);
1470
1471 r = table_add_many(table,
1472 TABLE_STRING, "DefaultRoute setting:",
1473 TABLE_BOOLEAN, link_info.default_route,
1474 TABLE_STRING, "LLMNR setting:",
1475 TABLE_STRING, strna(link_info.llmnr),
1476 TABLE_STRING, "MulticastDNS setting:",
1477 TABLE_STRING, strna(link_info.mdns),
1478 TABLE_STRING, "DNSOverTLS setting:",
1479 TABLE_STRING, strna(link_info.dns_over_tls),
1480 TABLE_STRING, "DNSSEC setting:",
1481 TABLE_STRING, strna(link_info.dnssec),
1482 TABLE_STRING, "DNSSEC supported:",
1483 TABLE_BOOLEAN, link_info.dnssec_supported);
1484 if (r < 0)
1485 return table_log_add_error(r);
1486
1487 if (link_info.current_dns) {
1488 r = table_add_many(table,
1489 TABLE_STRING, "Current DNS Server:",
1490 TABLE_STRING, link_info.current_dns);
1491 if (r < 0)
1492 return table_log_add_error(r);
1493 }
1494
1495 r = dump_list(table, "DNS Servers:", link_info.dns);
1496 if (r < 0)
1497 return r;
1498
1499 r = dump_list(table, "DNS Domain:", link_info.domains);
1500 if (r < 0)
1501 return r;
1502
1503 r = dump_list(table, "DNSSEC NTA:", link_info.ntas);
1504 if (r < 0)
1505 return r;
1506
1507 r = table_print(table, NULL);
1508 if (r < 0)
1509 return log_error_errno(r, "Failed to print table: %m");
1510
1511 if (empty_line)
1512 *empty_line = true;
1513
1514 return 0;
1515 }
1516
1517 static int map_global_dns_servers(sd_bus *bus, const char *member, sd_bus_message *m, sd_bus_error *error, void *userdata) {
1518 char ***l = userdata;
1519 int r;
1520
1521 assert(bus);
1522 assert(member);
1523 assert(m);
1524 assert(l);
1525
1526 r = sd_bus_message_enter_container(m, 'a', "(iiay)");
1527 if (r < 0)
1528 return r;
1529
1530 for (;;) {
1531 _cleanup_free_ char *pretty = NULL;
1532
1533 r = read_dns_server_one(m, true, &pretty);
1534 if (r < 0)
1535 return r;
1536 if (r == 0)
1537 break;
1538
1539 if (isempty(pretty))
1540 continue;
1541
1542 r = strv_consume(l, TAKE_PTR(pretty));
1543 if (r < 0)
1544 return r;
1545 }
1546
1547 r = sd_bus_message_exit_container(m);
1548 if (r < 0)
1549 return r;
1550
1551 return 0;
1552 }
1553
1554 static int map_global_current_dns_server(sd_bus *bus, const char *member, sd_bus_message *m, sd_bus_error *error, void *userdata) {
1555 assert(m);
1556 assert(userdata);
1557
1558 return read_dns_server_one(m, true, userdata);
1559 }
1560
1561 static int map_global_domains(sd_bus *bus, const char *member, sd_bus_message *m, sd_bus_error *error, void *userdata) {
1562 char ***l = userdata;
1563 int r;
1564
1565 assert(bus);
1566 assert(member);
1567 assert(m);
1568 assert(l);
1569
1570 r = sd_bus_message_enter_container(m, 'a', "(isb)");
1571 if (r < 0)
1572 return r;
1573
1574 for (;;) {
1575 _cleanup_free_ char *pretty = NULL;
1576
1577 r = read_domain_one(m, true, &pretty);
1578 if (r < 0)
1579 return r;
1580 if (r == 0)
1581 break;
1582
1583 if (isempty(pretty))
1584 continue;
1585
1586 r = strv_consume(l, TAKE_PTR(pretty));
1587 if (r < 0)
1588 return r;
1589 }
1590
1591 r = sd_bus_message_exit_container(m);
1592 if (r < 0)
1593 return r;
1594
1595 return 0;
1596 }
1597
1598 static int status_print_strv_global(char **p) {
1599 char **i;
1600
1601 printf("%sGlobal%s:", ansi_highlight(), ansi_normal());
1602
1603 STRV_FOREACH(i, p)
1604 printf(" %s", *i);
1605
1606 printf("\n");
1607
1608 return 0;
1609 }
1610
1611 struct global_info {
1612 char *current_dns;
1613 char **dns;
1614 char **fallback_dns;
1615 char **domains;
1616 char **ntas;
1617 const char *llmnr;
1618 const char *mdns;
1619 const char *dns_over_tls;
1620 const char *dnssec;
1621 bool dnssec_supported;
1622 };
1623
1624 static void global_info_clear(struct global_info *p) {
1625 free(p->current_dns);
1626 strv_free(p->dns);
1627 strv_free(p->fallback_dns);
1628 strv_free(p->domains);
1629 strv_free(p->ntas);
1630 }
1631
1632 static int status_global(sd_bus *bus, StatusMode mode, bool *empty_line) {
1633 static const struct bus_properties_map property_map[] = {
1634 { "DNS", "a(iiay)", map_global_dns_servers, offsetof(struct global_info, dns) },
1635 { "FallbackDNS", "a(iiay)", map_global_dns_servers, offsetof(struct global_info, fallback_dns) },
1636 { "CurrentDNSServer", "(iiay)", map_global_current_dns_server, offsetof(struct global_info, current_dns) },
1637 { "Domains", "a(isb)", map_global_domains, offsetof(struct global_info, domains) },
1638 { "DNSSECNegativeTrustAnchors", "as", NULL, offsetof(struct global_info, ntas) },
1639 { "LLMNR", "s", NULL, offsetof(struct global_info, llmnr) },
1640 { "MulticastDNS", "s", NULL, offsetof(struct global_info, mdns) },
1641 { "DNSOverTLS", "s", NULL, offsetof(struct global_info, dns_over_tls) },
1642 { "DNSSEC", "s", NULL, offsetof(struct global_info, dnssec) },
1643 { "DNSSECSupported", "b", NULL, offsetof(struct global_info, dnssec_supported) },
1644 {}
1645 };
1646 _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
1647 _cleanup_(sd_bus_message_unrefp) sd_bus_message *m = NULL;
1648 _cleanup_(global_info_clear) struct global_info global_info = {};
1649 _cleanup_(table_unrefp) Table *table = NULL;
1650 int r;
1651
1652 assert(bus);
1653 assert(empty_line);
1654
1655 r = bus_map_all_properties(bus,
1656 "org.freedesktop.resolve1",
1657 "/org/freedesktop/resolve1",
1658 property_map,
1659 BUS_MAP_BOOLEAN_AS_BOOL,
1660 &error,
1661 &m,
1662 &global_info);
1663 if (r < 0)
1664 return log_error_errno(r, "Failed to get global data: %s", bus_error_message(&error, r));
1665
1666 (void) pager_open(arg_pager_flags);
1667
1668 if (mode == STATUS_DNS)
1669 return status_print_strv_global(global_info.dns);
1670
1671 if (mode == STATUS_DOMAIN)
1672 return status_print_strv_global(global_info.domains);
1673
1674 if (mode == STATUS_NTA)
1675 return status_print_strv_global(global_info.ntas);
1676
1677 if (mode == STATUS_LLMNR) {
1678 printf("%sGlobal%s: %s\n", ansi_highlight(), ansi_normal(),
1679 strna(global_info.llmnr));
1680
1681 return 0;
1682 }
1683
1684 if (mode == STATUS_MDNS) {
1685 printf("%sGlobal%s: %s\n", ansi_highlight(), ansi_normal(),
1686 strna(global_info.mdns));
1687
1688 return 0;
1689 }
1690
1691 if (mode == STATUS_PRIVATE) {
1692 printf("%sGlobal%s: %s\n", ansi_highlight(), ansi_normal(),
1693 strna(global_info.dns_over_tls));
1694
1695 return 0;
1696 }
1697
1698 if (mode == STATUS_DNSSEC) {
1699 printf("%sGlobal%s: %s\n", ansi_highlight(), ansi_normal(),
1700 strna(global_info.dnssec));
1701
1702 return 0;
1703 }
1704
1705 printf("%sGlobal%s\n", ansi_highlight(), ansi_normal());
1706
1707 table = table_new("key", "value");
1708 if (!table)
1709 return log_oom();
1710
1711 table_set_header(table, false);
1712
1713 r = table_add_many(table,
1714 TABLE_STRING, "LLMNR setting:",
1715 TABLE_SET_ALIGN_PERCENT, 100,
1716 TABLE_STRING, strna(global_info.llmnr),
1717 TABLE_STRING, "MulticastDNS setting:",
1718 TABLE_STRING, strna(global_info.mdns),
1719 TABLE_STRING, "DNSOverTLS setting:",
1720 TABLE_STRING, strna(global_info.dns_over_tls),
1721 TABLE_STRING, "DNSSEC setting:",
1722 TABLE_STRING, strna(global_info.dnssec),
1723 TABLE_STRING, "DNSSEC supported:",
1724 TABLE_BOOLEAN, global_info.dnssec_supported);
1725 if (r < 0)
1726 return table_log_add_error(r);
1727
1728 if (global_info.current_dns) {
1729 r = table_add_many(table,
1730 TABLE_STRING, "Current DNS Server:",
1731 TABLE_STRING, global_info.current_dns);
1732 if (r < 0)
1733 return table_log_add_error(r);
1734 }
1735
1736 r = dump_list(table, "DNS Servers:", global_info.dns);
1737 if (r < 0)
1738 return r;
1739
1740 r = dump_list(table, "Fallback DNS Servers:", global_info.fallback_dns);
1741 if (r < 0)
1742 return r;
1743
1744 r = dump_list(table, "DNS Domain:", global_info.domains);
1745 if (r < 0)
1746 return r;
1747
1748 strv_sort(global_info.ntas);
1749 r = dump_list(table, "DNSSEC NTA:", global_info.ntas);
1750 if (r < 0)
1751 return r;
1752
1753 r = table_print(table, NULL);
1754 if (r < 0)
1755 return log_error_errno(r, "Failed to print table: %m");
1756
1757 *empty_line = true;
1758
1759 return 0;
1760 }
1761
1762 static int status_all(sd_bus *bus, StatusMode mode) {
1763 _cleanup_(sd_netlink_message_unrefp) sd_netlink_message *req = NULL, *reply = NULL;
1764 _cleanup_(sd_netlink_unrefp) sd_netlink *rtnl = NULL;
1765 sd_netlink_message *i;
1766 bool empty_line = false;
1767 int r;
1768
1769 assert(bus);
1770
1771 r = status_global(bus, mode, &empty_line);
1772 if (r < 0)
1773 return r;
1774
1775 r = sd_netlink_open(&rtnl);
1776 if (r < 0)
1777 return log_error_errno(r, "Failed to connect to netlink: %m");
1778
1779 r = sd_rtnl_message_new_link(rtnl, &req, RTM_GETLINK, 0);
1780 if (r < 0)
1781 return rtnl_log_create_error(r);
1782
1783 r = sd_netlink_message_request_dump(req, true);
1784 if (r < 0)
1785 return rtnl_log_create_error(r);
1786
1787 r = sd_netlink_call(rtnl, req, 0, &reply);
1788 if (r < 0)
1789 return log_error_errno(r, "Failed to enumerate links: %m");
1790
1791 r = 0;
1792 for (i = reply; i; i = sd_netlink_message_next(i)) {
1793 const char *name;
1794 int ifindex, q;
1795 uint16_t type;
1796
1797 q = sd_netlink_message_get_type(i, &type);
1798 if (q < 0)
1799 return rtnl_log_parse_error(q);
1800
1801 if (type != RTM_NEWLINK)
1802 continue;
1803
1804 q = sd_rtnl_message_link_get_ifindex(i, &ifindex);
1805 if (q < 0)
1806 return rtnl_log_parse_error(q);
1807
1808 if (ifindex == LOOPBACK_IFINDEX)
1809 continue;
1810
1811 q = sd_netlink_message_read_string(i, IFLA_IFNAME, &name);
1812 if (q < 0)
1813 return rtnl_log_parse_error(q);
1814
1815 q = status_ifindex(bus, ifindex, name, mode, &empty_line);
1816 if (q < 0 && r >= 0)
1817 r = q;
1818 }
1819
1820 return r;
1821 }
1822
1823 static int verb_status(int argc, char **argv, void *userdata) {
1824 sd_bus *bus = userdata;
1825 _cleanup_(sd_netlink_unrefp) sd_netlink *rtnl = NULL;
1826 int r = 0;
1827
1828 if (argc > 1) {
1829 char **ifname;
1830 bool empty_line = false;
1831
1832 STRV_FOREACH(ifname, argv + 1) {
1833 int ifindex, q;
1834
1835 ifindex = resolve_interface(&rtnl, *ifname);
1836 if (ifindex < 0) {
1837 log_warning_errno(ifindex, "Failed to resolve interface \"%s\", ignoring: %m", *ifname);
1838 continue;
1839 }
1840
1841 q = status_ifindex(bus, ifindex, NULL, STATUS_ALL, &empty_line);
1842 if (q < 0)
1843 r = q;
1844 }
1845 } else
1846 r = status_all(bus, STATUS_ALL);
1847
1848 return r;
1849 }
1850
1851 static int call_dns(sd_bus *bus, char **dns, const BusLocator *locator, sd_bus_error *error) {
1852 _cleanup_(sd_bus_message_unrefp) sd_bus_message *req = NULL;
1853 char **p;
1854 int r;
1855
1856 r = bus_message_new_method_call(bus, &req, locator, "SetLinkDNS");
1857 if (r < 0)
1858 return bus_log_create_error(r);
1859
1860 r = sd_bus_message_append(req, "i", arg_ifindex);
1861 if (r < 0)
1862 return bus_log_create_error(r);
1863
1864 r = sd_bus_message_open_container(req, 'a', "(iay)");
1865 if (r < 0)
1866 return bus_log_create_error(r);
1867
1868 /* If only argument is the empty string, then call SetLinkDNS() with an
1869 * empty list, which will clear the list of domains for an interface. */
1870 if (!strv_equal(dns, STRV_MAKE("")))
1871 STRV_FOREACH(p, dns) {
1872 struct in_addr_data data;
1873
1874 r = in_addr_from_string_auto(*p, &data.family, &data.address);
1875 if (r < 0)
1876 return log_error_errno(r, "Failed to parse DNS server address: %s", *p);
1877
1878 r = sd_bus_message_open_container(req, 'r', "iay");
1879 if (r < 0)
1880 return bus_log_create_error(r);
1881
1882 r = sd_bus_message_append(req, "i", data.family);
1883 if (r < 0)
1884 return bus_log_create_error(r);
1885
1886 r = sd_bus_message_append_array(req, 'y', &data.address, FAMILY_ADDRESS_SIZE(data.family));
1887 if (r < 0)
1888 return bus_log_create_error(r);
1889
1890 r = sd_bus_message_close_container(req);
1891 if (r < 0)
1892 return bus_log_create_error(r);
1893 }
1894
1895 r = sd_bus_message_close_container(req);
1896 if (r < 0)
1897 return bus_log_create_error(r);
1898
1899 return sd_bus_call(bus, req, 0, error, NULL);
1900 }
1901
1902 static int verb_dns(int argc, char **argv, void *userdata) {
1903 _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
1904 sd_bus *bus = userdata;
1905 int r;
1906
1907 assert(bus);
1908
1909 if (argc >= 2) {
1910 r = ifname_mangle(argv[1]);
1911 if (r < 0)
1912 return r;
1913 }
1914
1915 if (arg_ifindex <= 0)
1916 return status_all(bus, STATUS_DNS);
1917
1918 if (argc < 3)
1919 return status_ifindex(bus, arg_ifindex, NULL, STATUS_DNS, NULL);
1920
1921 r = call_dns(bus, argv + 2, bus_resolve_mgr, &error);
1922 if (r < 0 && sd_bus_error_has_name(&error, BUS_ERROR_LINK_BUSY)) {
1923 sd_bus_error_free(&error);
1924
1925 r = call_dns(bus, argv + 2, bus_network_mgr, &error);
1926 }
1927 if (r < 0) {
1928 if (arg_ifindex_permissive &&
1929 sd_bus_error_has_name(&error, BUS_ERROR_NO_SUCH_LINK))
1930 return 0;
1931
1932 return log_error_errno(r, "Failed to set DNS configuration: %s", bus_error_message(&error, r));
1933 }
1934
1935 return 0;
1936 }
1937
1938 static int call_domain(sd_bus *bus, char **domain, const BusLocator *locator, sd_bus_error *error) {
1939 _cleanup_(sd_bus_message_unrefp) sd_bus_message *req = NULL;
1940 char **p;
1941 int r;
1942
1943 r = bus_message_new_method_call(bus, &req, locator, "SetLinkDomains");
1944 if (r < 0)
1945 return bus_log_create_error(r);
1946
1947 r = sd_bus_message_append(req, "i", arg_ifindex);
1948 if (r < 0)
1949 return bus_log_create_error(r);
1950
1951 r = sd_bus_message_open_container(req, 'a', "(sb)");
1952 if (r < 0)
1953 return bus_log_create_error(r);
1954
1955 /* If only argument is the empty string, then call SetLinkDomains() with an
1956 * empty list, which will clear the list of domains for an interface. */
1957 if (!strv_equal(domain, STRV_MAKE("")))
1958 STRV_FOREACH(p, domain) {
1959 const char *n;
1960
1961 n = **p == '~' ? *p + 1 : *p;
1962
1963 r = dns_name_is_valid(n);
1964 if (r < 0)
1965 return log_error_errno(r, "Failed to validate specified domain %s: %m", n);
1966 if (r == 0) {
1967 log_error("Domain not valid: %s", n);
1968 return -EINVAL;
1969 }
1970
1971 r = sd_bus_message_append(req, "(sb)", n, **p == '~');
1972 if (r < 0)
1973 return bus_log_create_error(r);
1974 }
1975
1976 r = sd_bus_message_close_container(req);
1977 if (r < 0)
1978 return bus_log_create_error(r);
1979
1980 return sd_bus_call(bus, req, 0, error, NULL);
1981 }
1982
1983 static int verb_domain(int argc, char **argv, void *userdata) {
1984 _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
1985 sd_bus *bus = userdata;
1986 int r;
1987
1988 assert(bus);
1989
1990 if (argc >= 2) {
1991 r = ifname_mangle(argv[1]);
1992 if (r < 0)
1993 return r;
1994 }
1995
1996 if (arg_ifindex <= 0)
1997 return status_all(bus, STATUS_DOMAIN);
1998
1999 if (argc < 3)
2000 return status_ifindex(bus, arg_ifindex, NULL, STATUS_DOMAIN, NULL);
2001
2002 r = call_domain(bus, argv + 2, bus_resolve_mgr, &error);
2003 if (r < 0 && sd_bus_error_has_name(&error, BUS_ERROR_LINK_BUSY)) {
2004 sd_bus_error_free(&error);
2005
2006 r = call_domain(bus, argv + 2, bus_network_mgr, &error);
2007 }
2008 if (r < 0) {
2009 if (arg_ifindex_permissive &&
2010 sd_bus_error_has_name(&error, BUS_ERROR_NO_SUCH_LINK))
2011 return 0;
2012
2013 return log_error_errno(r, "Failed to set domain configuration: %s", bus_error_message(&error, r));
2014 }
2015
2016 return 0;
2017 }
2018
2019 static int verb_default_route(int argc, char **argv, void *userdata) {
2020 _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
2021 sd_bus *bus = userdata;
2022 int r, b;
2023
2024 assert(bus);
2025
2026 if (argc >= 2) {
2027 r = ifname_mangle(argv[1]);
2028 if (r < 0)
2029 return r;
2030 }
2031
2032 if (arg_ifindex <= 0)
2033 return status_all(bus, STATUS_DEFAULT_ROUTE);
2034
2035 if (argc < 3)
2036 return status_ifindex(bus, arg_ifindex, NULL, STATUS_DEFAULT_ROUTE, NULL);
2037
2038 b = parse_boolean(argv[2]);
2039 if (b < 0)
2040 return log_error_errno(b, "Failed to parse boolean argument: %s", argv[2]);
2041
2042 r = bus_call_method(bus, bus_resolve_mgr, "SetLinkDefaultRoute", &error, NULL, "ib", arg_ifindex, b);
2043 if (r < 0 && sd_bus_error_has_name(&error, BUS_ERROR_LINK_BUSY)) {
2044 sd_bus_error_free(&error);
2045
2046 r = bus_call_method(bus, bus_network_mgr, "SetLinkDefaultRoute", &error, NULL, "ib", arg_ifindex, b);
2047 }
2048 if (r < 0) {
2049 if (arg_ifindex_permissive &&
2050 sd_bus_error_has_name(&error, BUS_ERROR_NO_SUCH_LINK))
2051 return 0;
2052
2053 return log_error_errno(r, "Failed to set default route configuration: %s", bus_error_message(&error, r));
2054 }
2055
2056 return 0;
2057 }
2058
2059 static int verb_llmnr(int argc, char **argv, void *userdata) {
2060 _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
2061 sd_bus *bus = userdata;
2062 int r;
2063
2064 assert(bus);
2065
2066 if (argc >= 2) {
2067 r = ifname_mangle(argv[1]);
2068 if (r < 0)
2069 return r;
2070 }
2071
2072 if (arg_ifindex <= 0)
2073 return status_all(bus, STATUS_LLMNR);
2074
2075 if (argc < 3)
2076 return status_ifindex(bus, arg_ifindex, NULL, STATUS_LLMNR, NULL);
2077
2078 r = bus_call_method(bus, bus_resolve_mgr, "SetLinkLLMNR", &error, NULL, "is", arg_ifindex, argv[2]);
2079 if (r < 0 && sd_bus_error_has_name(&error, BUS_ERROR_LINK_BUSY)) {
2080 sd_bus_error_free(&error);
2081
2082 r = bus_call_method(bus, bus_network_mgr, "SetLinkLLMNR", &error, NULL, "is", arg_ifindex, argv[2]);
2083 }
2084 if (r < 0) {
2085 if (arg_ifindex_permissive &&
2086 sd_bus_error_has_name(&error, BUS_ERROR_NO_SUCH_LINK))
2087 return 0;
2088
2089 return log_error_errno(r, "Failed to set LLMNR configuration: %s", bus_error_message(&error, r));
2090 }
2091
2092 return 0;
2093 }
2094
2095 static int verb_mdns(int argc, char **argv, void *userdata) {
2096 _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
2097 sd_bus *bus = userdata;
2098 int r;
2099
2100 assert(bus);
2101
2102 if (argc >= 2) {
2103 r = ifname_mangle(argv[1]);
2104 if (r < 0)
2105 return r;
2106 }
2107
2108 if (arg_ifindex <= 0)
2109 return status_all(bus, STATUS_MDNS);
2110
2111 if (argc < 3)
2112 return status_ifindex(bus, arg_ifindex, NULL, STATUS_MDNS, NULL);
2113
2114 r = bus_call_method(bus, bus_resolve_mgr, "SetLinkMulticastDNS", &error, NULL, "is", arg_ifindex, argv[2]);
2115 if (r < 0 && sd_bus_error_has_name(&error, BUS_ERROR_LINK_BUSY)) {
2116 sd_bus_error_free(&error);
2117
2118 r = bus_call_method(
2119 bus,
2120 bus_network_mgr,
2121 "SetLinkMulticastDNS",
2122 &error,
2123 NULL,
2124 "is", arg_ifindex, argv[2]);
2125 }
2126 if (r < 0) {
2127 if (arg_ifindex_permissive &&
2128 sd_bus_error_has_name(&error, BUS_ERROR_NO_SUCH_LINK))
2129 return 0;
2130
2131 return log_error_errno(r, "Failed to set MulticastDNS configuration: %s", bus_error_message(&error, r));
2132 }
2133
2134 return 0;
2135 }
2136
2137 static int verb_dns_over_tls(int argc, char **argv, void *userdata) {
2138 _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
2139 sd_bus *bus = userdata;
2140 int r;
2141
2142 assert(bus);
2143
2144 if (argc >= 2) {
2145 r = ifname_mangle(argv[1]);
2146 if (r < 0)
2147 return r;
2148 }
2149
2150 if (arg_ifindex <= 0)
2151 return status_all(bus, STATUS_PRIVATE);
2152
2153 if (argc < 3)
2154 return status_ifindex(bus, arg_ifindex, NULL, STATUS_PRIVATE, NULL);
2155
2156 r = bus_call_method(bus, bus_resolve_mgr, "SetLinkDNSOverTLS", &error, NULL, "is", arg_ifindex, argv[2]);
2157 if (r < 0 && sd_bus_error_has_name(&error, BUS_ERROR_LINK_BUSY)) {
2158 sd_bus_error_free(&error);
2159
2160 r = bus_call_method(
2161 bus,
2162 bus_network_mgr,
2163 "SetLinkDNSOverTLS",
2164 &error,
2165 NULL,
2166 "is", arg_ifindex, argv[2]);
2167 }
2168 if (r < 0) {
2169 if (arg_ifindex_permissive &&
2170 sd_bus_error_has_name(&error, BUS_ERROR_NO_SUCH_LINK))
2171 return 0;
2172
2173 return log_error_errno(r, "Failed to set DNSOverTLS configuration: %s", bus_error_message(&error, r));
2174 }
2175
2176 return 0;
2177 }
2178
2179 static int verb_dnssec(int argc, char **argv, void *userdata) {
2180 _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
2181 sd_bus *bus = userdata;
2182 int r;
2183
2184 assert(bus);
2185
2186 if (argc >= 2) {
2187 r = ifname_mangle(argv[1]);
2188 if (r < 0)
2189 return r;
2190 }
2191
2192 if (arg_ifindex <= 0)
2193 return status_all(bus, STATUS_DNSSEC);
2194
2195 if (argc < 3)
2196 return status_ifindex(bus, arg_ifindex, NULL, STATUS_DNSSEC, NULL);
2197
2198 r = bus_call_method(bus, bus_resolve_mgr, "SetLinkDNSSEC", &error, NULL, "is", arg_ifindex, argv[2]);
2199 if (r < 0 && sd_bus_error_has_name(&error, BUS_ERROR_LINK_BUSY)) {
2200 sd_bus_error_free(&error);
2201
2202 r = bus_call_method(bus, bus_network_mgr, "SetLinkDNSSEC", &error, NULL, "is", arg_ifindex, argv[2]);
2203 }
2204 if (r < 0) {
2205 if (arg_ifindex_permissive &&
2206 sd_bus_error_has_name(&error, BUS_ERROR_NO_SUCH_LINK))
2207 return 0;
2208
2209 return log_error_errno(r, "Failed to set DNSSEC configuration: %s", bus_error_message(&error, r));
2210 }
2211
2212 return 0;
2213 }
2214
2215 static int call_nta(sd_bus *bus, char **nta, const BusLocator *locator, sd_bus_error *error) {
2216 _cleanup_(sd_bus_message_unrefp) sd_bus_message *req = NULL;
2217 int r;
2218
2219 r = bus_message_new_method_call(bus, &req, locator, "SetLinkDNSSECNegativeTrustAnchors");
2220 if (r < 0)
2221 return bus_log_create_error(r);
2222
2223 r = sd_bus_message_append(req, "i", arg_ifindex);
2224 if (r < 0)
2225 return bus_log_create_error(r);
2226
2227 r = sd_bus_message_append_strv(req, nta);
2228 if (r < 0)
2229 return bus_log_create_error(r);
2230
2231 return sd_bus_call(bus, req, 0, error, NULL);
2232 }
2233
2234 static int verb_nta(int argc, char **argv, void *userdata) {
2235 _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
2236 sd_bus *bus = userdata;
2237 char **p;
2238 int r;
2239 bool clear;
2240
2241 assert(bus);
2242
2243 if (argc >= 2) {
2244 r = ifname_mangle(argv[1]);
2245 if (r < 0)
2246 return r;
2247 }
2248
2249 if (arg_ifindex <= 0)
2250 return status_all(bus, STATUS_NTA);
2251
2252 if (argc < 3)
2253 return status_ifindex(bus, arg_ifindex, NULL, STATUS_NTA, NULL);
2254
2255 /* If only argument is the empty string, then call SetLinkDNSSECNegativeTrustAnchors()
2256 * with an empty list, which will clear the list of domains for an interface. */
2257 clear = strv_equal(argv + 2, STRV_MAKE(""));
2258
2259 if (!clear)
2260 STRV_FOREACH(p, argv + 2) {
2261 r = dns_name_is_valid(*p);
2262 if (r < 0)
2263 return log_error_errno(r, "Failed to validate specified domain %s: %m", *p);
2264 if (r == 0) {
2265 log_error("Domain not valid: %s", *p);
2266 return -EINVAL;
2267 }
2268 }
2269
2270 r = call_nta(bus, clear ? NULL : argv + 2, bus_resolve_mgr, &error);
2271 if (r < 0 && sd_bus_error_has_name(&error, BUS_ERROR_LINK_BUSY)) {
2272 sd_bus_error_free(&error);
2273
2274 r = call_nta(bus, clear ? NULL : argv + 2, bus_network_mgr, &error);
2275 }
2276 if (r < 0) {
2277 if (arg_ifindex_permissive &&
2278 sd_bus_error_has_name(&error, BUS_ERROR_NO_SUCH_LINK))
2279 return 0;
2280
2281 return log_error_errno(r, "Failed to set DNSSEC NTA configuration: %s", bus_error_message(&error, r));
2282 }
2283
2284 return 0;
2285 }
2286
2287 static int verb_revert_link(int argc, char **argv, void *userdata) {
2288 _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
2289 sd_bus *bus = userdata;
2290 int r;
2291
2292 assert(bus);
2293
2294 if (argc >= 2) {
2295 r = ifname_mangle(argv[1]);
2296 if (r < 0)
2297 return r;
2298 }
2299
2300 if (arg_ifindex <= 0)
2301 return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "Interface argument required.");
2302
2303 r = bus_call_method(bus, bus_resolve_mgr, "RevertLink", &error, NULL, "i", arg_ifindex);
2304 if (r < 0 && sd_bus_error_has_name(&error, BUS_ERROR_LINK_BUSY)) {
2305 sd_bus_error_free(&error);
2306
2307 r = bus_call_method(bus, bus_network_mgr, "RevertLinkDNS", &error, NULL, "i", arg_ifindex);
2308 }
2309 if (r < 0) {
2310 if (arg_ifindex_permissive &&
2311 sd_bus_error_has_name(&error, BUS_ERROR_NO_SUCH_LINK))
2312 return 0;
2313
2314 return log_error_errno(r, "Failed to revert interface configuration: %s", bus_error_message(&error, r));
2315 }
2316
2317 return 0;
2318 }
2319
2320 static int verb_log_level(int argc, char *argv[], void *userdata) {
2321 _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
2322 sd_bus *bus = userdata;
2323 int r;
2324
2325 assert(bus);
2326
2327 if (argc == 1) {
2328 _cleanup_free_ char *level = NULL;
2329
2330 r = sd_bus_get_property_string(
2331 bus,
2332 "org.freedesktop.resolve1",
2333 "/org/freedesktop/LogControl1",
2334 "org.freedesktop.LogControl1",
2335 "LogLevel",
2336 &error,
2337 &level);
2338 if (r < 0)
2339 return log_error_errno(r, "Failed to get log level: %s", bus_error_message(&error, r));
2340
2341 puts(level);
2342
2343 } else {
2344 assert(argc == 2);
2345
2346 r = sd_bus_set_property(
2347 bus,
2348 "org.freedesktop.resolve1",
2349 "/org/freedesktop/LogControl1",
2350 "org.freedesktop.LogControl1",
2351 "LogLevel",
2352 &error,
2353 "s",
2354 argv[1]);
2355 if (r < 0)
2356 return log_error_errno(r, "Failed to set log level: %s", bus_error_message(&error, r));
2357 }
2358
2359 return 0;
2360 }
2361
2362 static void help_protocol_types(void) {
2363 if (arg_legend)
2364 puts("Known protocol types:");
2365 puts("dns\nllmnr\nllmnr-ipv4\nllmnr-ipv6\nmdns\nmdns-ipv4\nmdns-ipv6");
2366 }
2367
2368 static void help_dns_types(void) {
2369 if (arg_legend)
2370 puts("Known DNS RR types:");
2371
2372 DUMP_STRING_TABLE(dns_type, int, _DNS_TYPE_MAX);
2373 }
2374
2375 static void help_dns_classes(void) {
2376 if (arg_legend)
2377 puts("Known DNS RR classes:");
2378
2379 DUMP_STRING_TABLE(dns_class, int, _DNS_CLASS_MAX);
2380 }
2381
2382 static int compat_help(void) {
2383 _cleanup_free_ char *link = NULL;
2384 int r;
2385
2386 r = terminal_urlify_man("resolvectl", "1", &link);
2387 if (r < 0)
2388 return log_oom();
2389
2390 printf("%1$s [OPTIONS...] HOSTNAME|ADDRESS...\n"
2391 "%1$s [OPTIONS...] --service [[NAME] TYPE] DOMAIN\n"
2392 "%1$s [OPTIONS...] --openpgp EMAIL@DOMAIN...\n"
2393 "%1$s [OPTIONS...] --statistics\n"
2394 "%1$s [OPTIONS...] --reset-statistics\n"
2395 "\n"
2396 "%2$sResolve domain names, IPv4 and IPv6 addresses, DNS records, and services.%3$s\n\n"
2397 " -h --help Show this help\n"
2398 " --version Show package version\n"
2399 " --no-pager Do not pipe output into a pager\n"
2400 " -4 Resolve IPv4 addresses\n"
2401 " -6 Resolve IPv6 addresses\n"
2402 " -i --interface=INTERFACE Look on interface\n"
2403 " -p --protocol=PROTO|help Look via protocol\n"
2404 " -t --type=TYPE|help Query RR with DNS type\n"
2405 " -c --class=CLASS|help Query RR with DNS class\n"
2406 " --service Resolve service (SRV)\n"
2407 " --service-address=BOOL Resolve address for services (default: yes)\n"
2408 " --service-txt=BOOL Resolve TXT records for services (default: yes)\n"
2409 " --openpgp Query OpenPGP public key\n"
2410 " --tlsa Query TLS public key\n"
2411 " --cname=BOOL Follow CNAME redirects (default: yes)\n"
2412 " --search=BOOL Use search domains for single-label names\n"
2413 " (default: yes)\n"
2414 " --raw[=payload|packet] Dump the answer as binary data\n"
2415 " --legend=BOOL Print headers and additional info (default: yes)\n"
2416 " --statistics Show resolver statistics\n"
2417 " --reset-statistics Reset resolver statistics\n"
2418 " --status Show link and server status\n"
2419 " --flush-caches Flush all local DNS caches\n"
2420 " --reset-server-features\n"
2421 " Forget learnt DNS server feature levels\n"
2422 " --set-dns=SERVER Set per-interface DNS server address\n"
2423 " --set-domain=DOMAIN Set per-interface search domain\n"
2424 " --set-llmnr=MODE Set per-interface LLMNR mode\n"
2425 " --set-mdns=MODE Set per-interface MulticastDNS mode\n"
2426 " --set-dnsovertls=MODE Set per-interface DNS-over-TLS mode\n"
2427 " --set-dnssec=MODE Set per-interface DNSSEC mode\n"
2428 " --set-nta=DOMAIN Set per-interface DNSSEC NTA\n"
2429 " --revert Revert per-interface configuration\n"
2430 "\nSee the %4$s for details.\n"
2431 , program_invocation_short_name
2432 , ansi_highlight()
2433 , ansi_normal()
2434 , link
2435 );
2436
2437 return 0;
2438 }
2439
2440 static int native_help(void) {
2441 _cleanup_free_ char *link = NULL;
2442 int r;
2443
2444 r = terminal_urlify_man("resolvectl", "1", &link);
2445 if (r < 0)
2446 return log_oom();
2447
2448 printf("%s [OPTIONS...] COMMAND ...\n"
2449 "\n"
2450 "%sSend control commands to the network name resolution manager, or%s\n"
2451 "%sresolve domain names, IPv4 and IPv6 addresses, DNS records, and services.%s\n"
2452 "\nCommands:\n"
2453 " query HOSTNAME|ADDRESS... Resolve domain names, IPv4 and IPv6 addresses\n"
2454 " service [[NAME] TYPE] DOMAIN Resolve service (SRV)\n"
2455 " openpgp EMAIL@DOMAIN... Query OpenPGP public key\n"
2456 " tlsa DOMAIN[:PORT]... Query TLS public key\n"
2457 " status [LINK...] Show link and server status\n"
2458 " statistics Show resolver statistics\n"
2459 " reset-statistics Reset resolver statistics\n"
2460 " flush-caches Flush all local DNS caches\n"
2461 " reset-server-features Forget learnt DNS server feature levels\n"
2462 " dns [LINK [SERVER...]] Get/set per-interface DNS server address\n"
2463 " domain [LINK [DOMAIN...]] Get/set per-interface search domain\n"
2464 " default-route [LINK [BOOL]] Get/set per-interface default route flag\n"
2465 " llmnr [LINK [MODE]] Get/set per-interface LLMNR mode\n"
2466 " mdns [LINK [MODE]] Get/set per-interface MulticastDNS mode\n"
2467 " dnsovertls [LINK [MODE]] Get/set per-interface DNS-over-TLS mode\n"
2468 " dnssec [LINK [MODE]] Get/set per-interface DNSSEC mode\n"
2469 " nta [LINK [DOMAIN...]] Get/set per-interface DNSSEC NTA\n"
2470 " revert LINK Revert per-interface configuration\n"
2471 "\nOptions:\n"
2472 " -h --help Show this help\n"
2473 " --version Show package version\n"
2474 " --no-pager Do not pipe output into a pager\n"
2475 " -4 Resolve IPv4 addresses\n"
2476 " -6 Resolve IPv6 addresses\n"
2477 " -i --interface=INTERFACE Look on interface\n"
2478 " -p --protocol=PROTO|help Look via protocol\n"
2479 " -t --type=TYPE|help Query RR with DNS type\n"
2480 " -c --class=CLASS|help Query RR with DNS class\n"
2481 " --service-address=BOOL Resolve address for services (default: yes)\n"
2482 " --service-txt=BOOL Resolve TXT records for services (default: yes)\n"
2483 " --cname=BOOL Follow CNAME redirects (default: yes)\n"
2484 " --search=BOOL Use search domains for single-label names\n"
2485 " (default: yes)\n"
2486 " --raw[=payload|packet] Dump the answer as binary data\n"
2487 " --legend=BOOL Print headers and additional info (default: yes)\n"
2488 "\nSee the %s for details.\n"
2489 , program_invocation_short_name
2490 , ansi_highlight()
2491 , ansi_normal()
2492 , ansi_highlight()
2493 , ansi_normal()
2494 , link
2495 );
2496
2497 return 0;
2498 }
2499
2500 static int verb_help(int argc, char **argv, void *userdata) {
2501 return native_help();
2502 }
2503
2504 static int compat_parse_argv(int argc, char *argv[]) {
2505 enum {
2506 ARG_VERSION = 0x100,
2507 ARG_LEGEND,
2508 ARG_SERVICE,
2509 ARG_CNAME,
2510 ARG_SERVICE_ADDRESS,
2511 ARG_SERVICE_TXT,
2512 ARG_OPENPGP,
2513 ARG_TLSA,
2514 ARG_RAW,
2515 ARG_SEARCH,
2516 ARG_STATISTICS,
2517 ARG_RESET_STATISTICS,
2518 ARG_STATUS,
2519 ARG_FLUSH_CACHES,
2520 ARG_RESET_SERVER_FEATURES,
2521 ARG_NO_PAGER,
2522 ARG_SET_DNS,
2523 ARG_SET_DOMAIN,
2524 ARG_SET_LLMNR,
2525 ARG_SET_MDNS,
2526 ARG_SET_PRIVATE,
2527 ARG_SET_DNSSEC,
2528 ARG_SET_NTA,
2529 ARG_REVERT_LINK,
2530 };
2531
2532 static const struct option options[] = {
2533 { "help", no_argument, NULL, 'h' },
2534 { "version", no_argument, NULL, ARG_VERSION },
2535 { "type", required_argument, NULL, 't' },
2536 { "class", required_argument, NULL, 'c' },
2537 { "legend", required_argument, NULL, ARG_LEGEND },
2538 { "interface", required_argument, NULL, 'i' },
2539 { "protocol", required_argument, NULL, 'p' },
2540 { "cname", required_argument, NULL, ARG_CNAME },
2541 { "service", no_argument, NULL, ARG_SERVICE },
2542 { "service-address", required_argument, NULL, ARG_SERVICE_ADDRESS },
2543 { "service-txt", required_argument, NULL, ARG_SERVICE_TXT },
2544 { "openpgp", no_argument, NULL, ARG_OPENPGP },
2545 { "tlsa", optional_argument, NULL, ARG_TLSA },
2546 { "raw", optional_argument, NULL, ARG_RAW },
2547 { "search", required_argument, NULL, ARG_SEARCH },
2548 { "statistics", no_argument, NULL, ARG_STATISTICS, },
2549 { "reset-statistics", no_argument, NULL, ARG_RESET_STATISTICS },
2550 { "status", no_argument, NULL, ARG_STATUS },
2551 { "flush-caches", no_argument, NULL, ARG_FLUSH_CACHES },
2552 { "reset-server-features", no_argument, NULL, ARG_RESET_SERVER_FEATURES },
2553 { "no-pager", no_argument, NULL, ARG_NO_PAGER },
2554 { "set-dns", required_argument, NULL, ARG_SET_DNS },
2555 { "set-domain", required_argument, NULL, ARG_SET_DOMAIN },
2556 { "set-llmnr", required_argument, NULL, ARG_SET_LLMNR },
2557 { "set-mdns", required_argument, NULL, ARG_SET_MDNS },
2558 { "set-dnsovertls", required_argument, NULL, ARG_SET_PRIVATE },
2559 { "set-dnssec", required_argument, NULL, ARG_SET_DNSSEC },
2560 { "set-nta", required_argument, NULL, ARG_SET_NTA },
2561 { "revert", no_argument, NULL, ARG_REVERT_LINK },
2562 {}
2563 };
2564
2565 int c, r;
2566
2567 assert(argc >= 0);
2568 assert(argv);
2569
2570 while ((c = getopt_long(argc, argv, "h46i:t:c:p:", options, NULL)) >= 0)
2571 switch(c) {
2572
2573 case 'h':
2574 return compat_help();
2575
2576 case ARG_VERSION:
2577 return version();
2578
2579 case '4':
2580 arg_family = AF_INET;
2581 break;
2582
2583 case '6':
2584 arg_family = AF_INET6;
2585 break;
2586
2587 case 'i':
2588 r = ifname_mangle(optarg);
2589 if (r < 0)
2590 return r;
2591 break;
2592
2593 case 't':
2594 if (streq(optarg, "help")) {
2595 help_dns_types();
2596 return 0;
2597 }
2598
2599 r = dns_type_from_string(optarg);
2600 if (r < 0) {
2601 log_error("Failed to parse RR record type %s", optarg);
2602 return r;
2603 }
2604 arg_type = (uint16_t) r;
2605 assert((int) arg_type == r);
2606
2607 arg_mode = MODE_RESOLVE_RECORD;
2608 break;
2609
2610 case 'c':
2611 if (streq(optarg, "help")) {
2612 help_dns_classes();
2613 return 0;
2614 }
2615
2616 r = dns_class_from_string(optarg);
2617 if (r < 0) {
2618 log_error("Failed to parse RR record class %s", optarg);
2619 return r;
2620 }
2621 arg_class = (uint16_t) r;
2622 assert((int) arg_class == r);
2623
2624 break;
2625
2626 case ARG_LEGEND:
2627 r = parse_boolean(optarg);
2628 if (r < 0)
2629 return log_error_errno(r, "Failed to parse --legend= argument");
2630
2631 arg_legend = r;
2632 break;
2633
2634 case 'p':
2635 if (streq(optarg, "help")) {
2636 help_protocol_types();
2637 return 0;
2638 } else if (streq(optarg, "dns"))
2639 arg_flags |= SD_RESOLVED_DNS;
2640 else if (streq(optarg, "llmnr"))
2641 arg_flags |= SD_RESOLVED_LLMNR;
2642 else if (streq(optarg, "llmnr-ipv4"))
2643 arg_flags |= SD_RESOLVED_LLMNR_IPV4;
2644 else if (streq(optarg, "llmnr-ipv6"))
2645 arg_flags |= SD_RESOLVED_LLMNR_IPV6;
2646 else if (streq(optarg, "mdns"))
2647 arg_flags |= SD_RESOLVED_MDNS;
2648 else if (streq(optarg, "mdns-ipv4"))
2649 arg_flags |= SD_RESOLVED_MDNS_IPV4;
2650 else if (streq(optarg, "mdns-ipv6"))
2651 arg_flags |= SD_RESOLVED_MDNS_IPV6;
2652 else
2653 return log_error_errno(SYNTHETIC_ERRNO(EINVAL),
2654 "Unknown protocol specifier: %s", optarg);
2655
2656 break;
2657
2658 case ARG_SERVICE:
2659 arg_mode = MODE_RESOLVE_SERVICE;
2660 break;
2661
2662 case ARG_OPENPGP:
2663 arg_mode = MODE_RESOLVE_OPENPGP;
2664 break;
2665
2666 case ARG_TLSA:
2667 arg_mode = MODE_RESOLVE_TLSA;
2668 if (!optarg || service_family_is_valid(optarg))
2669 arg_service_family = optarg;
2670 else
2671 return log_error_errno(SYNTHETIC_ERRNO(EINVAL),
2672 "Unknown service family \"%s\".", optarg);
2673 break;
2674
2675 case ARG_RAW:
2676 if (on_tty())
2677 return log_error_errno(SYNTHETIC_ERRNO(ENOTTY),
2678 "Refusing to write binary data to tty.");
2679
2680 if (optarg == NULL || streq(optarg, "payload"))
2681 arg_raw = RAW_PAYLOAD;
2682 else if (streq(optarg, "packet"))
2683 arg_raw = RAW_PACKET;
2684 else
2685 return log_error_errno(SYNTHETIC_ERRNO(EINVAL),
2686 "Unknown --raw specifier \"%s\".",
2687 optarg);
2688
2689 arg_legend = false;
2690 break;
2691
2692 case ARG_CNAME:
2693 r = parse_boolean(optarg);
2694 if (r < 0)
2695 return log_error_errno(r, "Failed to parse --cname= argument.");
2696 SET_FLAG(arg_flags, SD_RESOLVED_NO_CNAME, r == 0);
2697 break;
2698
2699 case ARG_SERVICE_ADDRESS:
2700 r = parse_boolean(optarg);
2701 if (r < 0)
2702 return log_error_errno(r, "Failed to parse --service-address= argument.");
2703 SET_FLAG(arg_flags, SD_RESOLVED_NO_ADDRESS, r == 0);
2704 break;
2705
2706 case ARG_SERVICE_TXT:
2707 r = parse_boolean(optarg);
2708 if (r < 0)
2709 return log_error_errno(r, "Failed to parse --service-txt= argument.");
2710 SET_FLAG(arg_flags, SD_RESOLVED_NO_TXT, r == 0);
2711 break;
2712
2713 case ARG_SEARCH:
2714 r = parse_boolean(optarg);
2715 if (r < 0)
2716 return log_error_errno(r, "Failed to parse --search argument.");
2717 SET_FLAG(arg_flags, SD_RESOLVED_NO_SEARCH, r == 0);
2718 break;
2719
2720 case ARG_STATISTICS:
2721 arg_mode = MODE_STATISTICS;
2722 break;
2723
2724 case ARG_RESET_STATISTICS:
2725 arg_mode = MODE_RESET_STATISTICS;
2726 break;
2727
2728 case ARG_FLUSH_CACHES:
2729 arg_mode = MODE_FLUSH_CACHES;
2730 break;
2731
2732 case ARG_RESET_SERVER_FEATURES:
2733 arg_mode = MODE_RESET_SERVER_FEATURES;
2734 break;
2735
2736 case ARG_STATUS:
2737 arg_mode = MODE_STATUS;
2738 break;
2739
2740 case ARG_NO_PAGER:
2741 arg_pager_flags |= PAGER_DISABLE;
2742 break;
2743
2744 case ARG_SET_DNS:
2745 r = strv_extend(&arg_set_dns, optarg);
2746 if (r < 0)
2747 return log_oom();
2748
2749 arg_mode = MODE_SET_LINK;
2750 break;
2751
2752 case ARG_SET_DOMAIN:
2753 r = strv_extend(&arg_set_domain, optarg);
2754 if (r < 0)
2755 return log_oom();
2756
2757 arg_mode = MODE_SET_LINK;
2758 break;
2759
2760 case ARG_SET_LLMNR:
2761 arg_set_llmnr = optarg;
2762 arg_mode = MODE_SET_LINK;
2763 break;
2764
2765 case ARG_SET_MDNS:
2766 arg_set_mdns = optarg;
2767 arg_mode = MODE_SET_LINK;
2768 break;
2769
2770 case ARG_SET_PRIVATE:
2771 arg_set_dns_over_tls = optarg;
2772 arg_mode = MODE_SET_LINK;
2773 break;
2774
2775 case ARG_SET_DNSSEC:
2776 arg_set_dnssec = optarg;
2777 arg_mode = MODE_SET_LINK;
2778 break;
2779
2780 case ARG_SET_NTA:
2781 r = strv_extend(&arg_set_nta, optarg);
2782 if (r < 0)
2783 return log_oom();
2784
2785 arg_mode = MODE_SET_LINK;
2786 break;
2787
2788 case ARG_REVERT_LINK:
2789 arg_mode = MODE_REVERT_LINK;
2790 break;
2791
2792 case '?':
2793 return -EINVAL;
2794
2795 default:
2796 assert_not_reached("Unhandled option");
2797 }
2798
2799 if (arg_type == 0 && arg_class != 0)
2800 return log_error_errno(SYNTHETIC_ERRNO(EINVAL),
2801 "--class= may only be used in conjunction with --type=.");
2802
2803 if (arg_type != 0 && arg_mode == MODE_RESOLVE_SERVICE)
2804 return log_error_errno(SYNTHETIC_ERRNO(EINVAL),
2805 "--service and --type= may not be combined.");
2806
2807 if (arg_type != 0 && arg_class == 0)
2808 arg_class = DNS_CLASS_IN;
2809
2810 if (arg_class != 0 && arg_type == 0)
2811 arg_type = DNS_TYPE_A;
2812
2813 if (IN_SET(arg_mode, MODE_SET_LINK, MODE_REVERT_LINK)) {
2814
2815 if (arg_ifindex <= 0)
2816 return log_error_errno(SYNTHETIC_ERRNO(EINVAL),
2817 "--set-dns=, --set-domain=, --set-llmnr=, --set-mdns=, --set-dnsovertls=, --set-dnssec=, --set-nta= and --revert require --interface=.");
2818 }
2819
2820 return 1 /* work to do */;
2821 }
2822
2823 static int native_parse_argv(int argc, char *argv[]) {
2824 enum {
2825 ARG_VERSION = 0x100,
2826 ARG_LEGEND,
2827 ARG_CNAME,
2828 ARG_SERVICE_ADDRESS,
2829 ARG_SERVICE_TXT,
2830 ARG_RAW,
2831 ARG_SEARCH,
2832 ARG_NO_PAGER,
2833 };
2834
2835 static const struct option options[] = {
2836 { "help", no_argument, NULL, 'h' },
2837 { "version", no_argument, NULL, ARG_VERSION },
2838 { "type", required_argument, NULL, 't' },
2839 { "class", required_argument, NULL, 'c' },
2840 { "legend", required_argument, NULL, ARG_LEGEND },
2841 { "interface", required_argument, NULL, 'i' },
2842 { "protocol", required_argument, NULL, 'p' },
2843 { "cname", required_argument, NULL, ARG_CNAME },
2844 { "service-address", required_argument, NULL, ARG_SERVICE_ADDRESS },
2845 { "service-txt", required_argument, NULL, ARG_SERVICE_TXT },
2846 { "raw", optional_argument, NULL, ARG_RAW },
2847 { "search", required_argument, NULL, ARG_SEARCH },
2848 { "no-pager", no_argument, NULL, ARG_NO_PAGER },
2849 {}
2850 };
2851
2852 int c, r;
2853
2854 assert(argc >= 0);
2855 assert(argv);
2856
2857 while ((c = getopt_long(argc, argv, "h46i:t:c:p:", options, NULL)) >= 0)
2858 switch(c) {
2859
2860 case 'h':
2861 return native_help();
2862
2863 case ARG_VERSION:
2864 return version();
2865
2866 case '4':
2867 arg_family = AF_INET;
2868 break;
2869
2870 case '6':
2871 arg_family = AF_INET6;
2872 break;
2873
2874 case 'i':
2875 r = ifname_mangle(optarg);
2876 if (r < 0)
2877 return r;
2878 break;
2879
2880 case 't':
2881 if (streq(optarg, "help")) {
2882 help_dns_types();
2883 return 0;
2884 }
2885
2886 r = dns_type_from_string(optarg);
2887 if (r < 0) {
2888 log_error("Failed to parse RR record type %s", optarg);
2889 return r;
2890 }
2891 arg_type = (uint16_t) r;
2892 assert((int) arg_type == r);
2893
2894 break;
2895
2896 case 'c':
2897 if (streq(optarg, "help")) {
2898 help_dns_classes();
2899 return 0;
2900 }
2901
2902 r = dns_class_from_string(optarg);
2903 if (r < 0) {
2904 log_error("Failed to parse RR record class %s", optarg);
2905 return r;
2906 }
2907 arg_class = (uint16_t) r;
2908 assert((int) arg_class == r);
2909
2910 break;
2911
2912 case ARG_LEGEND:
2913 r = parse_boolean(optarg);
2914 if (r < 0)
2915 return log_error_errno(r, "Failed to parse --legend= argument");
2916
2917 arg_legend = r;
2918 break;
2919
2920 case 'p':
2921 if (streq(optarg, "help")) {
2922 help_protocol_types();
2923 return 0;
2924 } else if (streq(optarg, "dns"))
2925 arg_flags |= SD_RESOLVED_DNS;
2926 else if (streq(optarg, "llmnr"))
2927 arg_flags |= SD_RESOLVED_LLMNR;
2928 else if (streq(optarg, "llmnr-ipv4"))
2929 arg_flags |= SD_RESOLVED_LLMNR_IPV4;
2930 else if (streq(optarg, "llmnr-ipv6"))
2931 arg_flags |= SD_RESOLVED_LLMNR_IPV6;
2932 else if (streq(optarg, "mdns"))
2933 arg_flags |= SD_RESOLVED_MDNS;
2934 else if (streq(optarg, "mdns-ipv4"))
2935 arg_flags |= SD_RESOLVED_MDNS_IPV4;
2936 else if (streq(optarg, "mdns-ipv6"))
2937 arg_flags |= SD_RESOLVED_MDNS_IPV6;
2938 else
2939 return log_error_errno(SYNTHETIC_ERRNO(EINVAL),
2940 "Unknown protocol specifier: %s",
2941 optarg);
2942
2943 break;
2944
2945 case ARG_RAW:
2946 if (on_tty())
2947 return log_error_errno(SYNTHETIC_ERRNO(ENOTTY),
2948 "Refusing to write binary data to tty.");
2949
2950 if (optarg == NULL || streq(optarg, "payload"))
2951 arg_raw = RAW_PAYLOAD;
2952 else if (streq(optarg, "packet"))
2953 arg_raw = RAW_PACKET;
2954 else
2955 return log_error_errno(SYNTHETIC_ERRNO(EINVAL),
2956 "Unknown --raw specifier \"%s\".",
2957 optarg);
2958
2959 arg_legend = false;
2960 break;
2961
2962 case ARG_CNAME:
2963 r = parse_boolean(optarg);
2964 if (r < 0)
2965 return log_error_errno(r, "Failed to parse --cname= argument.");
2966 SET_FLAG(arg_flags, SD_RESOLVED_NO_CNAME, r == 0);
2967 break;
2968
2969 case ARG_SERVICE_ADDRESS:
2970 r = parse_boolean(optarg);
2971 if (r < 0)
2972 return log_error_errno(r, "Failed to parse --service-address= argument.");
2973 SET_FLAG(arg_flags, SD_RESOLVED_NO_ADDRESS, r == 0);
2974 break;
2975
2976 case ARG_SERVICE_TXT:
2977 r = parse_boolean(optarg);
2978 if (r < 0)
2979 return log_error_errno(r, "Failed to parse --service-txt= argument.");
2980 SET_FLAG(arg_flags, SD_RESOLVED_NO_TXT, r == 0);
2981 break;
2982
2983 case ARG_SEARCH:
2984 r = parse_boolean(optarg);
2985 if (r < 0)
2986 return log_error_errno(r, "Failed to parse --search argument.");
2987 SET_FLAG(arg_flags, SD_RESOLVED_NO_SEARCH, r == 0);
2988 break;
2989
2990 case ARG_NO_PAGER:
2991 arg_pager_flags |= PAGER_DISABLE;
2992 break;
2993
2994 case '?':
2995 return -EINVAL;
2996
2997 default:
2998 assert_not_reached("Unhandled option");
2999 }
3000
3001 if (arg_type == 0 && arg_class != 0)
3002 return log_error_errno(SYNTHETIC_ERRNO(EINVAL),
3003 "--class= may only be used in conjunction with --type=.");
3004
3005 if (arg_type != 0 && arg_class == 0)
3006 arg_class = DNS_CLASS_IN;
3007
3008 if (arg_class != 0 && arg_type == 0)
3009 arg_type = DNS_TYPE_A;
3010
3011 return 1 /* work to do */;
3012 }
3013
3014 static int native_main(int argc, char *argv[], sd_bus *bus) {
3015
3016 static const Verb verbs[] = {
3017 { "help", VERB_ANY, VERB_ANY, 0, verb_help },
3018 { "status", VERB_ANY, VERB_ANY, VERB_DEFAULT, verb_status },
3019 { "query", 2, VERB_ANY, 0, verb_query },
3020 { "service", 2, 4, 0, verb_service },
3021 { "openpgp", 2, VERB_ANY, 0, verb_openpgp },
3022 { "tlsa", 2, VERB_ANY, 0, verb_tlsa },
3023 { "statistics", VERB_ANY, 1, 0, show_statistics },
3024 { "reset-statistics", VERB_ANY, 1, 0, reset_statistics },
3025 { "flush-caches", VERB_ANY, 1, 0, flush_caches },
3026 { "reset-server-features", VERB_ANY, 1, 0, reset_server_features },
3027 { "dns", VERB_ANY, VERB_ANY, 0, verb_dns },
3028 { "domain", VERB_ANY, VERB_ANY, 0, verb_domain },
3029 { "default-route", VERB_ANY, 3, 0, verb_default_route },
3030 { "llmnr", VERB_ANY, 3, 0, verb_llmnr },
3031 { "mdns", VERB_ANY, 3, 0, verb_mdns },
3032 { "dnsovertls", VERB_ANY, 3, 0, verb_dns_over_tls },
3033 { "dnssec", VERB_ANY, 3, 0, verb_dnssec },
3034 { "nta", VERB_ANY, VERB_ANY, 0, verb_nta },
3035 { "revert", VERB_ANY, 2, 0, verb_revert_link },
3036 { "log-level", VERB_ANY, 2, 0, verb_log_level },
3037 {}
3038 };
3039
3040 return dispatch_verb(argc, argv, verbs, bus);
3041 }
3042
3043 static int translate(const char *verb, const char *single_arg, size_t num_args, char **args, sd_bus *bus) {
3044 char **fake, **p;
3045 size_t num, i;
3046
3047 assert(verb);
3048 assert(num_args == 0 || args);
3049
3050 num = !!single_arg + num_args + 1;
3051
3052 p = fake = newa0(char *, num + 1);
3053 *p++ = (char *) verb;
3054 if (single_arg)
3055 *p++ = (char *) single_arg;
3056 for (i = 0; i < num_args; i++)
3057 *p++ = args[i];
3058
3059 optind = 0;
3060 return native_main((int) num, fake, bus);
3061 }
3062
3063 static int compat_main(int argc, char *argv[], sd_bus *bus) {
3064 int r = 0;
3065
3066 switch (arg_mode) {
3067 case MODE_RESOLVE_HOST:
3068 case MODE_RESOLVE_RECORD:
3069 return translate("query", NULL, argc - optind, argv + optind, bus);
3070
3071 case MODE_RESOLVE_SERVICE:
3072 return translate("service", NULL, argc - optind, argv + optind, bus);
3073
3074 case MODE_RESOLVE_OPENPGP:
3075 return translate("openpgp", NULL, argc - optind, argv + optind, bus);
3076
3077 case MODE_RESOLVE_TLSA:
3078 return translate("tlsa", arg_service_family, argc - optind, argv + optind, bus);
3079
3080 case MODE_STATISTICS:
3081 return translate("statistics", NULL, 0, NULL, bus);
3082
3083 case MODE_RESET_STATISTICS:
3084 return translate("reset-statistics", NULL, 0, NULL, bus);
3085
3086 case MODE_FLUSH_CACHES:
3087 return translate("flush-caches", NULL, 0, NULL, bus);
3088
3089 case MODE_RESET_SERVER_FEATURES:
3090 return translate("reset-server-features", NULL, 0, NULL, bus);
3091
3092 case MODE_STATUS:
3093 return translate("status", NULL, argc - optind, argv + optind, bus);
3094
3095 case MODE_SET_LINK:
3096 assert(arg_ifname);
3097
3098 if (arg_set_dns) {
3099 r = translate("dns", arg_ifname, strv_length(arg_set_dns), arg_set_dns, bus);
3100 if (r < 0)
3101 return r;
3102 }
3103
3104 if (arg_set_domain) {
3105 r = translate("domain", arg_ifname, strv_length(arg_set_domain), arg_set_domain, bus);
3106 if (r < 0)
3107 return r;
3108 }
3109
3110 if (arg_set_nta) {
3111 r = translate("nta", arg_ifname, strv_length(arg_set_nta), arg_set_nta, bus);
3112 if (r < 0)
3113 return r;
3114 }
3115
3116 if (arg_set_llmnr) {
3117 r = translate("llmnr", arg_ifname, 1, (char **) &arg_set_llmnr, bus);
3118 if (r < 0)
3119 return r;
3120 }
3121
3122 if (arg_set_mdns) {
3123 r = translate("mdns", arg_ifname, 1, (char **) &arg_set_mdns, bus);
3124 if (r < 0)
3125 return r;
3126 }
3127
3128 if (arg_set_dns_over_tls) {
3129 r = translate("dnsovertls", arg_ifname, 1, (char **) &arg_set_dns_over_tls, bus);
3130 if (r < 0)
3131 return r;
3132 }
3133
3134 if (arg_set_dnssec) {
3135 r = translate("dnssec", arg_ifname, 1, (char **) &arg_set_dnssec, bus);
3136 if (r < 0)
3137 return r;
3138 }
3139
3140 return r;
3141
3142 case MODE_REVERT_LINK:
3143 assert(arg_ifname);
3144
3145 return translate("revert", arg_ifname, 0, NULL, bus);
3146
3147 case _MODE_INVALID:
3148 assert_not_reached("invalid mode");
3149 }
3150
3151 return 0;
3152 }
3153
3154 static int run(int argc, char **argv) {
3155 _cleanup_(sd_bus_flush_close_unrefp) sd_bus *bus = NULL;
3156 int r;
3157
3158 setlocale(LC_ALL, "");
3159 log_show_color(true);
3160 log_parse_environment();
3161 log_open();
3162
3163 if (streq(program_invocation_short_name, "resolvconf"))
3164 r = resolvconf_parse_argv(argc, argv);
3165 else if (streq(program_invocation_short_name, "systemd-resolve"))
3166 r = compat_parse_argv(argc, argv);
3167 else
3168 r = native_parse_argv(argc, argv);
3169 if (r <= 0)
3170 return r;
3171
3172 r = sd_bus_open_system(&bus);
3173 if (r < 0)
3174 return log_error_errno(r, "sd_bus_open_system: %m");
3175
3176 if (STR_IN_SET(program_invocation_short_name, "systemd-resolve", "resolvconf"))
3177 return compat_main(argc, argv, bus);
3178
3179 return native_main(argc, argv, bus);
3180 }
3181
3182 DEFINE_MAIN_FUNCTION(run);
Unnamed repository; edit this file 'description' to name the repository.