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resolvectl: when doing reverse lookups, show ifindex as "comment" too in output
[thirdparty/systemd.git] / src / resolve / resolvectl.c
1 /* SPDX-License-Identifier: LGPL-2.1+ */
2
3 #include <getopt.h>
4 #include <net/if.h>
5
6 #include "sd-bus.h"
7 #include "sd-netlink.h"
8
9 #include "af-list.h"
10 #include "alloc-util.h"
11 #include "bus-common-errors.h"
12 #include "bus-error.h"
13 #include "bus-util.h"
14 #include "dns-domain.h"
15 #include "escape.h"
16 #include "gcrypt-util.h"
17 #include "in-addr-util.h"
18 #include "main-func.h"
19 #include "missing.h"
20 #include "netlink-util.h"
21 #include "pager.h"
22 #include "parse-util.h"
23 #include "pretty-print.h"
24 #include "resolvconf-compat.h"
25 #include "resolvectl.h"
26 #include "resolved-def.h"
27 #include "resolved-dns-packet.h"
28 #include "string-table.h"
29 #include "strv.h"
30 #include "terminal-util.h"
31 #include "verbs.h"
32
33 static int arg_family = AF_UNSPEC;
34 static int arg_ifindex = 0;
35 static char *arg_ifname = NULL;
36 static uint16_t arg_type = 0;
37 static uint16_t arg_class = 0;
38 static bool arg_legend = true;
39 static uint64_t arg_flags = 0;
40 static PagerFlags arg_pager_flags = 0;
41 bool arg_ifindex_permissive = false; /* If true, don't generate an error if the specified interface index doesn't exist */
42 static const char *arg_service_family = NULL;
43
44 typedef enum RawType {
45 RAW_NONE,
46 RAW_PAYLOAD,
47 RAW_PACKET,
48 } RawType;
49 static RawType arg_raw = RAW_NONE;
50
51 ExecutionMode arg_mode = MODE_RESOLVE_HOST;
52
53 char **arg_set_dns = NULL;
54 char **arg_set_domain = NULL;
55 static const char *arg_set_llmnr = NULL;
56 static const char *arg_set_mdns = NULL;
57 static const char *arg_set_dns_over_tls = NULL;
58 static const char *arg_set_dnssec = NULL;
59 static char **arg_set_nta = NULL;
60
61 STATIC_DESTRUCTOR_REGISTER(arg_ifname, freep);
62 STATIC_DESTRUCTOR_REGISTER(arg_set_dns, strv_freep);
63 STATIC_DESTRUCTOR_REGISTER(arg_set_domain, strv_freep);
64 STATIC_DESTRUCTOR_REGISTER(arg_set_nta, strv_freep);
65
66 typedef enum StatusMode {
67 STATUS_ALL,
68 STATUS_DNS,
69 STATUS_DOMAIN,
70 STATUS_LLMNR,
71 STATUS_MDNS,
72 STATUS_PRIVATE,
73 STATUS_DNSSEC,
74 STATUS_NTA,
75 } StatusMode;
76
77 static int parse_ifindex_and_warn(const char *s) {
78 int ifi;
79
80 assert(s);
81
82 if (parse_ifindex(s, &ifi) < 0) {
83 ifi = if_nametoindex(s);
84 if (ifi <= 0)
85 return log_error_errno(errno, "Unknown interface '%s': %m", s);
86 }
87
88 return ifi;
89 }
90
91 int ifname_mangle(const char *s) {
92 _cleanup_free_ char *iface = NULL;
93 const char *dot;
94 int ifi;
95
96 assert(s);
97
98 dot = strchr(s, '.');
99 if (dot) {
100 log_debug("Ignoring protocol specifier '%s'.", dot + 1);
101 iface = strndup(s, dot - s);
102
103 } else
104 iface = strdup(s);
105 if (!iface)
106 return log_oom();
107
108 if (parse_ifindex(iface, &ifi) < 0) {
109 ifi = if_nametoindex(iface);
110 if (ifi <= 0) {
111 if (errno == ENODEV && arg_ifindex_permissive) {
112 log_debug("Interface '%s' not found, but -f specified, ignoring.", iface);
113 return 0; /* done */
114 }
115
116 return log_error_errno(errno, "Unknown interface '%s': %m", iface);
117 }
118 }
119
120 if (arg_ifindex > 0 && arg_ifindex != ifi) {
121 log_error("Specified multiple different interfaces. Refusing.");
122 return -EINVAL;
123 }
124
125 arg_ifindex = ifi;
126 free_and_replace(arg_ifname, iface);
127
128 return 1;
129 }
130
131 static void print_source(uint64_t flags, usec_t rtt) {
132 char rtt_str[FORMAT_TIMESTAMP_MAX];
133
134 if (!arg_legend)
135 return;
136
137 if (flags == 0)
138 return;
139
140 fputs("\n-- Information acquired via", stdout);
141
142 if (flags != 0)
143 printf(" protocol%s%s%s%s%s",
144 flags & SD_RESOLVED_DNS ? " DNS" :"",
145 flags & SD_RESOLVED_LLMNR_IPV4 ? " LLMNR/IPv4" : "",
146 flags & SD_RESOLVED_LLMNR_IPV6 ? " LLMNR/IPv6" : "",
147 flags & SD_RESOLVED_MDNS_IPV4 ? " mDNS/IPv4" : "",
148 flags & SD_RESOLVED_MDNS_IPV6 ? " mDNS/IPv6" : "");
149
150 assert_se(format_timespan(rtt_str, sizeof(rtt_str), rtt, 100));
151
152 printf(" in %s", rtt_str);
153
154 fputc('.', stdout);
155 fputc('\n', stdout);
156
157 printf("-- Data is authenticated: %s\n", yes_no(flags & SD_RESOLVED_AUTHENTICATED));
158 }
159
160 static void print_ifindex_comment(int printed_so_far, int ifindex) {
161 char ifname[IF_NAMESIZE];
162
163 if (ifindex <= 0)
164 return;
165
166 if (!if_indextoname(ifindex, ifname))
167 log_warning_errno(errno, "Failed to resolve interface name for index %i, ignoring: %m", ifindex);
168 else
169 printf("%*s-- link: %s",
170 60 > printed_so_far ? 60 - printed_so_far : 0, " ", /* Align comment to the 60th column */
171 ifname);
172 }
173
174 static int resolve_host(sd_bus *bus, const char *name) {
175 _cleanup_(sd_bus_message_unrefp) sd_bus_message *req = NULL, *reply = NULL;
176 _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
177 const char *canonical = NULL;
178 unsigned c = 0;
179 uint64_t flags;
180 usec_t ts;
181 int r;
182
183 assert(name);
184
185 log_debug("Resolving %s (family %s, interface %s).", name, af_to_name(arg_family) ?: "*", isempty(arg_ifname) ? "*" : arg_ifname);
186
187 r = sd_bus_message_new_method_call(
188 bus,
189 &req,
190 "org.freedesktop.resolve1",
191 "/org/freedesktop/resolve1",
192 "org.freedesktop.resolve1.Manager",
193 "ResolveHostname");
194 if (r < 0)
195 return bus_log_create_error(r);
196
197 r = sd_bus_message_append(req, "isit", arg_ifindex, name, arg_family, arg_flags);
198 if (r < 0)
199 return bus_log_create_error(r);
200
201 ts = now(CLOCK_MONOTONIC);
202
203 r = sd_bus_call(bus, req, SD_RESOLVED_QUERY_TIMEOUT_USEC, &error, &reply);
204 if (r < 0)
205 return log_error_errno(r, "%s: resolve call failed: %s", name, bus_error_message(&error, r));
206
207 ts = now(CLOCK_MONOTONIC) - ts;
208
209 r = sd_bus_message_enter_container(reply, 'a', "(iiay)");
210 if (r < 0)
211 return bus_log_parse_error(r);
212
213 while ((r = sd_bus_message_enter_container(reply, 'r', "iiay")) > 0) {
214 _cleanup_free_ char *pretty = NULL;
215 int ifindex, family, k;
216 const void *a;
217 size_t sz;
218
219 assert_cc(sizeof(int) == sizeof(int32_t));
220
221 r = sd_bus_message_read(reply, "ii", &ifindex, &family);
222 if (r < 0)
223 return bus_log_parse_error(r);
224
225 r = sd_bus_message_read_array(reply, 'y', &a, &sz);
226 if (r < 0)
227 return bus_log_parse_error(r);
228
229 r = sd_bus_message_exit_container(reply);
230 if (r < 0)
231 return bus_log_parse_error(r);
232
233 if (!IN_SET(family, AF_INET, AF_INET6)) {
234 log_debug("%s: skipping entry with family %d (%s)", name, family, af_to_name(family) ?: "unknown");
235 continue;
236 }
237
238 if (sz != FAMILY_ADDRESS_SIZE(family)) {
239 log_error("%s: systemd-resolved returned address of invalid size %zu for family %s", name, sz, af_to_name(family) ?: "unknown");
240 return -EINVAL;
241 }
242
243 r = in_addr_ifindex_to_string(family, a, ifindex, &pretty);
244 if (r < 0)
245 return log_error_errno(r, "Failed to print address for %s: %m", name);
246
247 k = printf("%*s%s %s",
248 (int) strlen(name), c == 0 ? name : "", c == 0 ? ":" : " ",
249 pretty);
250
251 print_ifindex_comment(k, ifindex);
252 fputc('\n', stdout);
253
254 c++;
255 }
256 if (r < 0)
257 return bus_log_parse_error(r);
258
259 r = sd_bus_message_exit_container(reply);
260 if (r < 0)
261 return bus_log_parse_error(r);
262
263 r = sd_bus_message_read(reply, "st", &canonical, &flags);
264 if (r < 0)
265 return bus_log_parse_error(r);
266
267 if (!streq(name, canonical))
268 printf("%*s%s (%s)\n",
269 (int) strlen(name), c == 0 ? name : "", c == 0 ? ":" : " ",
270 canonical);
271
272 if (c == 0) {
273 log_error("%s: no addresses found", name);
274 return -ESRCH;
275 }
276
277 print_source(flags, ts);
278
279 return 0;
280 }
281
282 static int resolve_address(sd_bus *bus, int family, const union in_addr_union *address, int ifindex) {
283 _cleanup_(sd_bus_message_unrefp) sd_bus_message *req = NULL, *reply = NULL;
284 _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
285 _cleanup_free_ char *pretty = NULL;
286 uint64_t flags;
287 unsigned c = 0;
288 usec_t ts;
289 int r;
290
291 assert(bus);
292 assert(IN_SET(family, AF_INET, AF_INET6));
293 assert(address);
294
295 if (ifindex <= 0)
296 ifindex = arg_ifindex;
297
298 r = in_addr_ifindex_to_string(family, address, ifindex, &pretty);
299 if (r < 0)
300 return log_oom();
301
302 log_debug("Resolving %s.", pretty);
303
304 r = sd_bus_message_new_method_call(
305 bus,
306 &req,
307 "org.freedesktop.resolve1",
308 "/org/freedesktop/resolve1",
309 "org.freedesktop.resolve1.Manager",
310 "ResolveAddress");
311 if (r < 0)
312 return bus_log_create_error(r);
313
314 r = sd_bus_message_append(req, "ii", ifindex, family);
315 if (r < 0)
316 return bus_log_create_error(r);
317
318 r = sd_bus_message_append_array(req, 'y', address, FAMILY_ADDRESS_SIZE(family));
319 if (r < 0)
320 return bus_log_create_error(r);
321
322 r = sd_bus_message_append(req, "t", arg_flags);
323 if (r < 0)
324 return bus_log_create_error(r);
325
326 ts = now(CLOCK_MONOTONIC);
327
328 r = sd_bus_call(bus, req, SD_RESOLVED_QUERY_TIMEOUT_USEC, &error, &reply);
329 if (r < 0)
330 return log_error_errno(r, "%s: resolve call failed: %s", pretty, bus_error_message(&error, r));
331
332 ts = now(CLOCK_MONOTONIC) - ts;
333
334 r = sd_bus_message_enter_container(reply, 'a', "(is)");
335 if (r < 0)
336 return bus_log_create_error(r);
337
338 while ((r = sd_bus_message_enter_container(reply, 'r', "is")) > 0) {
339 const char *n;
340 int k;
341
342 assert_cc(sizeof(int) == sizeof(int32_t));
343
344 r = sd_bus_message_read(reply, "is", &ifindex, &n);
345 if (r < 0)
346 return r;
347
348 r = sd_bus_message_exit_container(reply);
349 if (r < 0)
350 return r;
351
352 k = printf("%*s%s %s",
353 (int) strlen(pretty), c == 0 ? pretty : "",
354 c == 0 ? ":" : " ",
355 n);
356
357 print_ifindex_comment(k, ifindex);
358 fputc('\n', stdout);
359
360 c++;
361 }
362 if (r < 0)
363 return bus_log_parse_error(r);
364
365 r = sd_bus_message_exit_container(reply);
366 if (r < 0)
367 return bus_log_parse_error(r);
368
369 r = sd_bus_message_read(reply, "t", &flags);
370 if (r < 0)
371 return bus_log_parse_error(r);
372
373 if (c == 0) {
374 log_error("%s: no names found", pretty);
375 return -ESRCH;
376 }
377
378 print_source(flags, ts);
379
380 return 0;
381 }
382
383 static int output_rr_packet(const void *d, size_t l, int ifindex) {
384 _cleanup_(dns_resource_record_unrefp) DnsResourceRecord *rr = NULL;
385 _cleanup_(dns_packet_unrefp) DnsPacket *p = NULL;
386 int r;
387
388 r = dns_packet_new(&p, DNS_PROTOCOL_DNS, 0, DNS_PACKET_SIZE_MAX);
389 if (r < 0)
390 return log_oom();
391
392 p->refuse_compression = true;
393
394 r = dns_packet_append_blob(p, d, l, NULL);
395 if (r < 0)
396 return log_oom();
397
398 r = dns_packet_read_rr(p, &rr, NULL, NULL);
399 if (r < 0)
400 return log_error_errno(r, "Failed to parse RR: %m");
401
402 if (arg_raw == RAW_PAYLOAD) {
403 void *data;
404 ssize_t k;
405
406 k = dns_resource_record_payload(rr, &data);
407 if (k < 0)
408 return log_error_errno(k, "Cannot dump RR: %m");
409 fwrite(data, 1, k, stdout);
410 } else {
411 const char *s;
412 int k;
413
414 s = dns_resource_record_to_string(rr);
415 if (!s)
416 return log_oom();
417
418 k = printf("%s", s);
419 print_ifindex_comment(k, ifindex);
420 fputc('\n', stdout);
421 }
422
423 return 0;
424 }
425
426 static int resolve_record(sd_bus *bus, const char *name, uint16_t class, uint16_t type, bool warn_missing) {
427 _cleanup_(sd_bus_message_unrefp) sd_bus_message *req = NULL, *reply = NULL;
428 _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
429 unsigned n = 0;
430 uint64_t flags;
431 int r;
432 usec_t ts;
433 bool needs_authentication = false;
434
435 assert(name);
436
437 log_debug("Resolving %s %s %s (interface %s).", name, dns_class_to_string(class), dns_type_to_string(type), isempty(arg_ifname) ? "*" : arg_ifname);
438
439 r = sd_bus_message_new_method_call(
440 bus,
441 &req,
442 "org.freedesktop.resolve1",
443 "/org/freedesktop/resolve1",
444 "org.freedesktop.resolve1.Manager",
445 "ResolveRecord");
446 if (r < 0)
447 return bus_log_create_error(r);
448
449 r = sd_bus_message_append(req, "isqqt", arg_ifindex, name, class, type, arg_flags);
450 if (r < 0)
451 return bus_log_create_error(r);
452
453 ts = now(CLOCK_MONOTONIC);
454
455 r = sd_bus_call(bus, req, SD_RESOLVED_QUERY_TIMEOUT_USEC, &error, &reply);
456 if (r < 0) {
457 if (warn_missing || r != -ENXIO)
458 log_error("%s: resolve call failed: %s", name, bus_error_message(&error, r));
459 return r;
460 }
461
462 ts = now(CLOCK_MONOTONIC) - ts;
463
464 r = sd_bus_message_enter_container(reply, 'a', "(iqqay)");
465 if (r < 0)
466 return bus_log_parse_error(r);
467
468 while ((r = sd_bus_message_enter_container(reply, 'r', "iqqay")) > 0) {
469 uint16_t c, t;
470 int ifindex;
471 const void *d;
472 size_t l;
473
474 assert_cc(sizeof(int) == sizeof(int32_t));
475
476 r = sd_bus_message_read(reply, "iqq", &ifindex, &c, &t);
477 if (r < 0)
478 return bus_log_parse_error(r);
479
480 r = sd_bus_message_read_array(reply, 'y', &d, &l);
481 if (r < 0)
482 return bus_log_parse_error(r);
483
484 r = sd_bus_message_exit_container(reply);
485 if (r < 0)
486 return bus_log_parse_error(r);
487
488 if (arg_raw == RAW_PACKET) {
489 uint64_t u64 = htole64(l);
490
491 fwrite(&u64, sizeof(u64), 1, stdout);
492 fwrite(d, 1, l, stdout);
493 } else {
494 r = output_rr_packet(d, l, ifindex);
495 if (r < 0)
496 return r;
497 }
498
499 if (dns_type_needs_authentication(t))
500 needs_authentication = true;
501
502 n++;
503 }
504 if (r < 0)
505 return bus_log_parse_error(r);
506
507 r = sd_bus_message_exit_container(reply);
508 if (r < 0)
509 return bus_log_parse_error(r);
510
511 r = sd_bus_message_read(reply, "t", &flags);
512 if (r < 0)
513 return bus_log_parse_error(r);
514
515 if (n == 0) {
516 if (warn_missing)
517 log_error("%s: no records found", name);
518 return -ESRCH;
519 }
520
521 print_source(flags, ts);
522
523 if ((flags & SD_RESOLVED_AUTHENTICATED) == 0 && needs_authentication) {
524 fflush(stdout);
525
526 fprintf(stderr, "\n%s"
527 "WARNING: The resources shown contain cryptographic key data which could not be\n"
528 " authenticated. It is not suitable to authenticate any communication.\n"
529 " This is usually indication that DNSSEC authentication was not enabled\n"
530 " or is not available for the selected protocol or DNS servers.%s\n",
531 ansi_highlight_red(),
532 ansi_normal());
533 }
534
535 return 0;
536 }
537
538 static int resolve_rfc4501(sd_bus *bus, const char *name) {
539 uint16_t type = 0, class = 0;
540 const char *p, *q, *n;
541 int r;
542
543 assert(bus);
544 assert(name);
545 assert(startswith(name, "dns:"));
546
547 /* Parse RFC 4501 dns: URIs */
548
549 p = name + 4;
550
551 if (p[0] == '/') {
552 const char *e;
553
554 if (p[1] != '/')
555 goto invalid;
556
557 e = strchr(p + 2, '/');
558 if (!e)
559 goto invalid;
560
561 if (e != p + 2)
562 log_warning("DNS authority specification not supported; ignoring specified authority.");
563
564 p = e + 1;
565 }
566
567 q = strchr(p, '?');
568 if (q) {
569 n = strndupa(p, q - p);
570 q++;
571
572 for (;;) {
573 const char *f;
574
575 f = startswith_no_case(q, "class=");
576 if (f) {
577 _cleanup_free_ char *t = NULL;
578 const char *e;
579
580 if (class != 0)
581 return log_error_errno(SYNTHETIC_ERRNO(EINVAL),
582 "DNS class specified twice.");
583
584 e = strchrnul(f, ';');
585 t = strndup(f, e - f);
586 if (!t)
587 return log_oom();
588
589 r = dns_class_from_string(t);
590 if (r < 0)
591 return log_error_errno(SYNTHETIC_ERRNO(EINVAL),
592 "Unknown DNS class %s.", t);
593
594 class = r;
595
596 if (*e == ';') {
597 q = e + 1;
598 continue;
599 }
600
601 break;
602 }
603
604 f = startswith_no_case(q, "type=");
605 if (f) {
606 _cleanup_free_ char *t = NULL;
607 const char *e;
608
609 if (type != 0)
610 return log_error_errno(SYNTHETIC_ERRNO(EINVAL),
611 "DNS type specified twice.");
612
613 e = strchrnul(f, ';');
614 t = strndup(f, e - f);
615 if (!t)
616 return log_oom();
617
618 r = dns_type_from_string(t);
619 if (r < 0)
620 return log_error_errno(SYNTHETIC_ERRNO(EINVAL),
621 "Unknown DNS type %s.", t);
622
623 type = r;
624
625 if (*e == ';') {
626 q = e + 1;
627 continue;
628 }
629
630 break;
631 }
632
633 goto invalid;
634 }
635 } else
636 n = p;
637
638 if (class == 0)
639 class = arg_class ?: DNS_CLASS_IN;
640 if (type == 0)
641 type = arg_type ?: DNS_TYPE_A;
642
643 return resolve_record(bus, n, class, type, true);
644
645 invalid:
646 return log_error_errno(SYNTHETIC_ERRNO(EINVAL),
647 "Invalid DNS URI: %s", name);
648 }
649
650 static int verb_query(int argc, char **argv, void *userdata) {
651 sd_bus *bus = userdata;
652 char **p;
653 int q, r = 0;
654
655 if (arg_type != 0)
656 STRV_FOREACH(p, argv + 1) {
657 q = resolve_record(bus, *p, arg_class, arg_type, true);
658 if (q < 0)
659 r = q;
660 }
661
662 else
663 STRV_FOREACH(p, argv + 1) {
664 if (startswith(*p, "dns:"))
665 q = resolve_rfc4501(bus, *p);
666 else {
667 int family, ifindex;
668 union in_addr_union a;
669
670 q = in_addr_ifindex_from_string_auto(*p, &family, &a, &ifindex);
671 if (q >= 0)
672 q = resolve_address(bus, family, &a, ifindex);
673 else
674 q = resolve_host(bus, *p);
675 }
676 if (q < 0)
677 r = q;
678 }
679
680 return r;
681 }
682
683 static int resolve_service(sd_bus *bus, const char *name, const char *type, const char *domain) {
684 const char *canonical_name, *canonical_type, *canonical_domain;
685 _cleanup_(sd_bus_message_unrefp) sd_bus_message *req = NULL, *reply = NULL;
686 _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
687 size_t indent, sz;
688 uint64_t flags;
689 const char *p;
690 unsigned c;
691 usec_t ts;
692 int r;
693
694 assert(bus);
695 assert(domain);
696
697 name = empty_to_null(name);
698 type = empty_to_null(type);
699
700 if (name)
701 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);
702 else if (type)
703 log_debug("Resolving service type %s of %s (family %s, interface %s).", type, domain, af_to_name(arg_family) ?: "*", isempty(arg_ifname) ? "*" : arg_ifname);
704 else
705 log_debug("Resolving service type %s (family %s, interface %s).", domain, af_to_name(arg_family) ?: "*", isempty(arg_ifname) ? "*" : arg_ifname);
706
707 r = sd_bus_message_new_method_call(
708 bus,
709 &req,
710 "org.freedesktop.resolve1",
711 "/org/freedesktop/resolve1",
712 "org.freedesktop.resolve1.Manager",
713 "ResolveService");
714 if (r < 0)
715 return bus_log_create_error(r);
716
717 r = sd_bus_message_append(req, "isssit", arg_ifindex, name, type, domain, arg_family, arg_flags);
718 if (r < 0)
719 return bus_log_create_error(r);
720
721 ts = now(CLOCK_MONOTONIC);
722
723 r = sd_bus_call(bus, req, SD_RESOLVED_QUERY_TIMEOUT_USEC, &error, &reply);
724 if (r < 0)
725 return log_error_errno(r, "Resolve call failed: %s", bus_error_message(&error, r));
726
727 ts = now(CLOCK_MONOTONIC) - ts;
728
729 r = sd_bus_message_enter_container(reply, 'a', "(qqqsa(iiay)s)");
730 if (r < 0)
731 return bus_log_parse_error(r);
732
733 indent =
734 (name ? strlen(name) + 1 : 0) +
735 (type ? strlen(type) + 1 : 0) +
736 strlen(domain) + 2;
737
738 c = 0;
739 while ((r = sd_bus_message_enter_container(reply, 'r', "qqqsa(iiay)s")) > 0) {
740 uint16_t priority, weight, port;
741 const char *hostname, *canonical;
742
743 r = sd_bus_message_read(reply, "qqqs", &priority, &weight, &port, &hostname);
744 if (r < 0)
745 return bus_log_parse_error(r);
746
747 if (name)
748 printf("%*s%s", (int) strlen(name), c == 0 ? name : "", c == 0 ? "/" : " ");
749 if (type)
750 printf("%*s%s", (int) strlen(type), c == 0 ? type : "", c == 0 ? "/" : " ");
751
752 printf("%*s%s %s:%u [priority=%u, weight=%u]\n",
753 (int) strlen(domain), c == 0 ? domain : "",
754 c == 0 ? ":" : " ",
755 hostname, port,
756 priority, weight);
757
758 r = sd_bus_message_enter_container(reply, 'a', "(iiay)");
759 if (r < 0)
760 return bus_log_parse_error(r);
761
762 while ((r = sd_bus_message_enter_container(reply, 'r', "iiay")) > 0) {
763 _cleanup_free_ char *pretty = NULL;
764 int ifindex, family, k;
765 const void *a;
766
767 assert_cc(sizeof(int) == sizeof(int32_t));
768
769 r = sd_bus_message_read(reply, "ii", &ifindex, &family);
770 if (r < 0)
771 return bus_log_parse_error(r);
772
773 r = sd_bus_message_read_array(reply, 'y', &a, &sz);
774 if (r < 0)
775 return bus_log_parse_error(r);
776
777 r = sd_bus_message_exit_container(reply);
778 if (r < 0)
779 return bus_log_parse_error(r);
780
781 if (!IN_SET(family, AF_INET, AF_INET6)) {
782 log_debug("%s: skipping entry with family %d (%s)", name, family, af_to_name(family) ?: "unknown");
783 continue;
784 }
785
786 if (sz != FAMILY_ADDRESS_SIZE(family)) {
787 log_error("%s: systemd-resolved returned address of invalid size %zu for family %s", name, sz, af_to_name(family) ?: "unknown");
788 return -EINVAL;
789 }
790
791 r = in_addr_ifindex_to_string(family, a, ifindex, &pretty);
792 if (r < 0)
793 return log_error_errno(r, "Failed to print address for %s: %m", name);
794
795 k = printf("%*s%s", (int) indent, "", pretty);
796 print_ifindex_comment(k, ifindex);
797 fputc('\n', stdout);
798 }
799 if (r < 0)
800 return bus_log_parse_error(r);
801
802 r = sd_bus_message_exit_container(reply);
803 if (r < 0)
804 return bus_log_parse_error(r);
805
806 r = sd_bus_message_read(reply, "s", &canonical);
807 if (r < 0)
808 return bus_log_parse_error(r);
809
810 if (!streq(hostname, canonical))
811 printf("%*s(%s)\n", (int) indent, "", canonical);
812
813 r = sd_bus_message_exit_container(reply);
814 if (r < 0)
815 return bus_log_parse_error(r);
816
817 c++;
818 }
819 if (r < 0)
820 return bus_log_parse_error(r);
821
822 r = sd_bus_message_exit_container(reply);
823 if (r < 0)
824 return bus_log_parse_error(r);
825
826 r = sd_bus_message_enter_container(reply, 'a', "ay");
827 if (r < 0)
828 return bus_log_parse_error(r);
829
830 while ((r = sd_bus_message_read_array(reply, 'y', (const void**) &p, &sz)) > 0) {
831 _cleanup_free_ char *escaped = NULL;
832
833 escaped = cescape_length(p, sz);
834 if (!escaped)
835 return log_oom();
836
837 printf("%*s%s\n", (int) indent, "", escaped);
838 }
839 if (r < 0)
840 return bus_log_parse_error(r);
841
842 r = sd_bus_message_exit_container(reply);
843 if (r < 0)
844 return bus_log_parse_error(r);
845
846 r = sd_bus_message_read(reply, "ssst", &canonical_name, &canonical_type, &canonical_domain, &flags);
847 if (r < 0)
848 return bus_log_parse_error(r);
849
850 canonical_name = empty_to_null(canonical_name);
851 canonical_type = empty_to_null(canonical_type);
852
853 if (!streq_ptr(name, canonical_name) ||
854 !streq_ptr(type, canonical_type) ||
855 !streq_ptr(domain, canonical_domain)) {
856
857 printf("%*s(", (int) indent, "");
858
859 if (canonical_name)
860 printf("%s/", canonical_name);
861 if (canonical_type)
862 printf("%s/", canonical_type);
863
864 printf("%s)\n", canonical_domain);
865 }
866
867 print_source(flags, ts);
868
869 return 0;
870 }
871
872 static int verb_service(int argc, char **argv, void *userdata) {
873 sd_bus *bus = userdata;
874
875 if (argc == 2)
876 return resolve_service(bus, NULL, NULL, argv[1]);
877 else if (argc == 3)
878 return resolve_service(bus, NULL, argv[1], argv[2]);
879 else
880 return resolve_service(bus, argv[1], argv[2], argv[3]);
881 }
882
883 static int resolve_openpgp(sd_bus *bus, const char *address) {
884 const char *domain, *full;
885 int r;
886 _cleanup_free_ char *hashed = NULL;
887
888 assert(bus);
889 assert(address);
890
891 domain = strrchr(address, '@');
892 if (!domain)
893 return log_error_errno(SYNTHETIC_ERRNO(EINVAL),
894 "Address does not contain '@': \"%s\"", address);
895 if (domain == address || domain[1] == '\0')
896 return log_error_errno(SYNTHETIC_ERRNO(EINVAL),
897 "Address starts or ends with '@': \"%s\"", address);
898 domain++;
899
900 r = string_hashsum_sha256(address, domain - 1 - address, &hashed);
901 if (r < 0)
902 return log_error_errno(r, "Hashing failed: %m");
903
904 strshorten(hashed, 56);
905
906 full = strjoina(hashed, "._openpgpkey.", domain);
907 log_debug("Looking up \"%s\".", full);
908
909 r = resolve_record(bus, full,
910 arg_class ?: DNS_CLASS_IN,
911 arg_type ?: DNS_TYPE_OPENPGPKEY, false);
912
913 if (IN_SET(r, -ENXIO, -ESRCH)) { /* NXDOMAIN or NODATA? */
914 hashed = mfree(hashed);
915 r = string_hashsum_sha224(address, domain - 1 - address, &hashed);
916 if (r < 0)
917 return log_error_errno(r, "Hashing failed: %m");
918
919 full = strjoina(hashed, "._openpgpkey.", domain);
920 log_debug("Looking up \"%s\".", full);
921
922 return resolve_record(bus, full,
923 arg_class ?: DNS_CLASS_IN,
924 arg_type ?: DNS_TYPE_OPENPGPKEY, true);
925 }
926
927 return r;
928 }
929
930 static int verb_openpgp(int argc, char **argv, void *userdata) {
931 sd_bus *bus = userdata;
932 char **p;
933 int q, r = 0;
934
935 STRV_FOREACH(p, argv + 1) {
936 q = resolve_openpgp(bus, *p);
937 if (q < 0)
938 r = q;
939 }
940
941 return r;
942 }
943
944 static int resolve_tlsa(sd_bus *bus, const char *family, const char *address) {
945 const char *port;
946 uint16_t port_num = 443;
947 _cleanup_free_ char *full = NULL;
948 int r;
949
950 assert(bus);
951 assert(address);
952
953 port = strrchr(address, ':');
954 if (port) {
955 r = parse_ip_port(port + 1, &port_num);
956 if (r < 0)
957 return log_error_errno(r, "Invalid port \"%s\".", port + 1);
958
959 address = strndupa(address, port - address);
960 }
961
962 r = asprintf(&full, "_%u._%s.%s",
963 port_num,
964 family,
965 address);
966 if (r < 0)
967 return log_oom();
968
969 log_debug("Looking up \"%s\".", full);
970
971 return resolve_record(bus, full,
972 arg_class ?: DNS_CLASS_IN,
973 arg_type ?: DNS_TYPE_TLSA, true);
974 }
975
976 static bool service_family_is_valid(const char *s) {
977 return STR_IN_SET(s, "tcp", "udp", "sctp");
978 }
979
980 static int verb_tlsa(int argc, char **argv, void *userdata) {
981 sd_bus *bus = userdata;
982 char **p, **args = argv + 1;
983 const char *family = "tcp";
984 int q, r = 0;
985
986 if (service_family_is_valid(argv[1])) {
987 family = argv[1];
988 args++;
989 }
990
991 STRV_FOREACH(p, args) {
992 q = resolve_tlsa(bus, family, *p);
993 if (q < 0)
994 r = q;
995 }
996
997 return r;
998 }
999
1000 static int show_statistics(int argc, char **argv, void *userdata) {
1001 _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
1002 _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL;
1003 sd_bus *bus = userdata;
1004 uint64_t n_current_transactions, n_total_transactions,
1005 cache_size, n_cache_hit, n_cache_miss,
1006 n_dnssec_secure, n_dnssec_insecure, n_dnssec_bogus, n_dnssec_indeterminate;
1007 int r, dnssec_supported;
1008
1009 assert(bus);
1010
1011 r = sd_bus_get_property_trivial(bus,
1012 "org.freedesktop.resolve1",
1013 "/org/freedesktop/resolve1",
1014 "org.freedesktop.resolve1.Manager",
1015 "DNSSECSupported",
1016 &error,
1017 'b',
1018 &dnssec_supported);
1019 if (r < 0)
1020 return log_error_errno(r, "Failed to get DNSSEC supported state: %s", bus_error_message(&error, r));
1021
1022 printf("DNSSEC supported by current servers: %s%s%s\n\n",
1023 ansi_highlight(),
1024 yes_no(dnssec_supported),
1025 ansi_normal());
1026
1027 r = sd_bus_get_property(bus,
1028 "org.freedesktop.resolve1",
1029 "/org/freedesktop/resolve1",
1030 "org.freedesktop.resolve1.Manager",
1031 "TransactionStatistics",
1032 &error,
1033 &reply,
1034 "(tt)");
1035 if (r < 0)
1036 return log_error_errno(r, "Failed to get transaction statistics: %s", bus_error_message(&error, r));
1037
1038 r = sd_bus_message_read(reply, "(tt)",
1039 &n_current_transactions,
1040 &n_total_transactions);
1041 if (r < 0)
1042 return bus_log_parse_error(r);
1043
1044 printf("%sTransactions%s\n"
1045 "Current Transactions: %" PRIu64 "\n"
1046 " Total Transactions: %" PRIu64 "\n",
1047 ansi_highlight(),
1048 ansi_normal(),
1049 n_current_transactions,
1050 n_total_transactions);
1051
1052 reply = sd_bus_message_unref(reply);
1053
1054 r = sd_bus_get_property(bus,
1055 "org.freedesktop.resolve1",
1056 "/org/freedesktop/resolve1",
1057 "org.freedesktop.resolve1.Manager",
1058 "CacheStatistics",
1059 &error,
1060 &reply,
1061 "(ttt)");
1062 if (r < 0)
1063 return log_error_errno(r, "Failed to get cache statistics: %s", bus_error_message(&error, r));
1064
1065 r = sd_bus_message_read(reply, "(ttt)",
1066 &cache_size,
1067 &n_cache_hit,
1068 &n_cache_miss);
1069 if (r < 0)
1070 return bus_log_parse_error(r);
1071
1072 printf("\n%sCache%s\n"
1073 " Current Cache Size: %" PRIu64 "\n"
1074 " Cache Hits: %" PRIu64 "\n"
1075 " Cache Misses: %" PRIu64 "\n",
1076 ansi_highlight(),
1077 ansi_normal(),
1078 cache_size,
1079 n_cache_hit,
1080 n_cache_miss);
1081
1082 reply = sd_bus_message_unref(reply);
1083
1084 r = sd_bus_get_property(bus,
1085 "org.freedesktop.resolve1",
1086 "/org/freedesktop/resolve1",
1087 "org.freedesktop.resolve1.Manager",
1088 "DNSSECStatistics",
1089 &error,
1090 &reply,
1091 "(tttt)");
1092 if (r < 0)
1093 return log_error_errno(r, "Failed to get DNSSEC statistics: %s", bus_error_message(&error, r));
1094
1095 r = sd_bus_message_read(reply, "(tttt)",
1096 &n_dnssec_secure,
1097 &n_dnssec_insecure,
1098 &n_dnssec_bogus,
1099 &n_dnssec_indeterminate);
1100 if (r < 0)
1101 return bus_log_parse_error(r);
1102
1103 printf("\n%sDNSSEC Verdicts%s\n"
1104 " Secure: %" PRIu64 "\n"
1105 " Insecure: %" PRIu64 "\n"
1106 " Bogus: %" PRIu64 "\n"
1107 " Indeterminate: %" PRIu64 "\n",
1108 ansi_highlight(),
1109 ansi_normal(),
1110 n_dnssec_secure,
1111 n_dnssec_insecure,
1112 n_dnssec_bogus,
1113 n_dnssec_indeterminate);
1114
1115 return 0;
1116 }
1117
1118 static int reset_statistics(int argc, char **argv, void *userdata) {
1119 _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
1120 sd_bus *bus = userdata;
1121 int r;
1122
1123 r = sd_bus_call_method(bus,
1124 "org.freedesktop.resolve1",
1125 "/org/freedesktop/resolve1",
1126 "org.freedesktop.resolve1.Manager",
1127 "ResetStatistics",
1128 &error,
1129 NULL,
1130 NULL);
1131 if (r < 0)
1132 return log_error_errno(r, "Failed to reset statistics: %s", bus_error_message(&error, r));
1133
1134 return 0;
1135 }
1136
1137 static int flush_caches(int argc, char **argv, void *userdata) {
1138 _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
1139 sd_bus *bus = userdata;
1140 int r;
1141
1142 r = sd_bus_call_method(bus,
1143 "org.freedesktop.resolve1",
1144 "/org/freedesktop/resolve1",
1145 "org.freedesktop.resolve1.Manager",
1146 "FlushCaches",
1147 &error,
1148 NULL,
1149 NULL);
1150 if (r < 0)
1151 return log_error_errno(r, "Failed to flush caches: %s", bus_error_message(&error, r));
1152
1153 return 0;
1154 }
1155
1156 static int reset_server_features(int argc, char **argv, void *userdata) {
1157 _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
1158 sd_bus *bus = userdata;
1159 int r;
1160
1161 r = sd_bus_call_method(bus,
1162 "org.freedesktop.resolve1",
1163 "/org/freedesktop/resolve1",
1164 "org.freedesktop.resolve1.Manager",
1165 "ResetServerFeatures",
1166 &error,
1167 NULL,
1168 NULL);
1169 if (r < 0)
1170 return log_error_errno(r, "Failed to reset server features: %s", bus_error_message(&error, r));
1171
1172 return 0;
1173 }
1174
1175 static int read_dns_server_one(sd_bus_message *m, bool with_ifindex, char **ret) {
1176 _cleanup_free_ char *pretty = NULL;
1177 int ifindex, family, r;
1178 const void *a;
1179 size_t sz;
1180
1181 assert(m);
1182 assert(ret);
1183
1184 r = sd_bus_message_enter_container(m, 'r', with_ifindex ? "iiay" : "iay");
1185 if (r <= 0)
1186 return r;
1187
1188 if (with_ifindex) {
1189 r = sd_bus_message_read(m, "i", &ifindex);
1190 if (r < 0)
1191 return r;
1192 }
1193
1194 r = sd_bus_message_read(m, "i", &family);
1195 if (r < 0)
1196 return r;
1197
1198 r = sd_bus_message_read_array(m, 'y', &a, &sz);
1199 if (r < 0)
1200 return r;
1201
1202 r = sd_bus_message_exit_container(m);
1203 if (r < 0)
1204 return r;
1205
1206 if (with_ifindex && ifindex != 0) {
1207 /* only show the global ones here */
1208 *ret = NULL;
1209 return 1;
1210 }
1211
1212 if (!IN_SET(family, AF_INET, AF_INET6)) {
1213 log_debug("Unexpected family, ignoring: %i", family);
1214
1215 *ret = NULL;
1216 return 1;
1217 }
1218
1219 if (sz != FAMILY_ADDRESS_SIZE(family)) {
1220 log_debug("Address size mismatch, ignoring.");
1221
1222 *ret = NULL;
1223 return 1;
1224 }
1225
1226 r = in_addr_to_string(family, a, &pretty);
1227 if (r < 0)
1228 return r;
1229
1230 *ret = TAKE_PTR(pretty);
1231
1232 return 1;
1233 }
1234
1235 static int map_link_dns_servers(sd_bus *bus, const char *member, sd_bus_message *m, sd_bus_error *error, void *userdata) {
1236 char ***l = userdata;
1237 int r;
1238
1239 assert(bus);
1240 assert(member);
1241 assert(m);
1242 assert(l);
1243
1244 r = sd_bus_message_enter_container(m, 'a', "(iay)");
1245 if (r < 0)
1246 return r;
1247
1248 for (;;) {
1249 char *pretty = NULL;
1250
1251 r = read_dns_server_one(m, false, &pretty);
1252 if (r < 0)
1253 return r;
1254 if (r == 0)
1255 break;
1256
1257 if (isempty(pretty))
1258 continue;
1259
1260 r = strv_consume(l, pretty);
1261 if (r < 0)
1262 return r;
1263 }
1264
1265 r = sd_bus_message_exit_container(m);
1266 if (r < 0)
1267 return r;
1268
1269 return 0;
1270 }
1271
1272 static int map_link_current_dns_server(sd_bus *bus, const char *member, sd_bus_message *m, sd_bus_error *error, void *userdata) {
1273 assert(m);
1274 assert(userdata);
1275
1276 return read_dns_server_one(m, false, userdata);
1277 }
1278
1279 static int read_domain_one(sd_bus_message *m, bool with_ifindex, char **ret) {
1280 _cleanup_free_ char *str = NULL;
1281 int ifindex, route_only, r;
1282 const char *domain;
1283
1284 assert(m);
1285 assert(ret);
1286
1287 if (with_ifindex)
1288 r = sd_bus_message_read(m, "(isb)", &ifindex, &domain, &route_only);
1289 else
1290 r = sd_bus_message_read(m, "(sb)", &domain, &route_only);
1291 if (r <= 0)
1292 return r;
1293
1294 if (with_ifindex && ifindex != 0) {
1295 /* only show the global ones here */
1296 *ret = NULL;
1297 return 1;
1298 }
1299
1300 if (route_only)
1301 str = strappend("~", domain);
1302 else
1303 str = strdup(domain);
1304 if (!str)
1305 return -ENOMEM;
1306
1307 *ret = TAKE_PTR(str);
1308
1309 return 1;
1310 }
1311
1312 static int map_link_domains(sd_bus *bus, const char *member, sd_bus_message *m, sd_bus_error *error, void *userdata) {
1313 char ***l = userdata;
1314 int r;
1315
1316 assert(bus);
1317 assert(member);
1318 assert(m);
1319 assert(l);
1320
1321 r = sd_bus_message_enter_container(m, 'a', "(sb)");
1322 if (r < 0)
1323 return r;
1324
1325 for (;;) {
1326 char *pretty = NULL;
1327
1328 r = read_domain_one(m, false, &pretty);
1329 if (r < 0)
1330 return r;
1331 if (r == 0)
1332 break;
1333
1334 if (isempty(pretty))
1335 continue;
1336
1337 r = strv_consume(l, pretty);
1338 if (r < 0)
1339 return r;
1340 }
1341
1342 r = sd_bus_message_exit_container(m);
1343 if (r < 0)
1344 return r;
1345
1346 return 0;
1347 }
1348
1349 static int status_print_strv_ifindex(int ifindex, const char *ifname, char **p) {
1350 char **i;
1351
1352 printf("%sLink %i (%s)%s:",
1353 ansi_highlight(), ifindex, ifname, ansi_normal());
1354
1355 STRV_FOREACH(i, p)
1356 printf(" %s", *i);
1357
1358 printf("\n");
1359
1360 return 0;
1361 }
1362
1363 struct link_info {
1364 uint64_t scopes_mask;
1365 const char *llmnr;
1366 const char *mdns;
1367 const char *dns_over_tls;
1368 const char *dnssec;
1369 char *current_dns;
1370 char **dns;
1371 char **domains;
1372 char **ntas;
1373 bool dnssec_supported;
1374 };
1375
1376 static void link_info_clear(struct link_info *p) {
1377 free(p->current_dns);
1378 strv_free(p->dns);
1379 strv_free(p->domains);
1380 strv_free(p->ntas);
1381 }
1382
1383 static int status_ifindex(sd_bus *bus, int ifindex, const char *name, StatusMode mode, bool *empty_line) {
1384 static const struct bus_properties_map property_map[] = {
1385 { "ScopesMask", "t", NULL, offsetof(struct link_info, scopes_mask) },
1386 { "DNS", "a(iay)", map_link_dns_servers, offsetof(struct link_info, dns) },
1387 { "CurrentDNSServer", "(iay)", map_link_current_dns_server, offsetof(struct link_info, current_dns) },
1388 { "Domains", "a(sb)", map_link_domains, offsetof(struct link_info, domains) },
1389 { "LLMNR", "s", NULL, offsetof(struct link_info, llmnr) },
1390 { "MulticastDNS", "s", NULL, offsetof(struct link_info, mdns) },
1391 { "DNSOverTLS", "s", NULL, offsetof(struct link_info, dns_over_tls) },
1392 { "DNSSEC", "s", NULL, offsetof(struct link_info, dnssec) },
1393 { "DNSSECNegativeTrustAnchors", "as", NULL, offsetof(struct link_info, ntas) },
1394 { "DNSSECSupported", "b", NULL, offsetof(struct link_info, dnssec_supported) },
1395 {}
1396 };
1397 _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
1398 _cleanup_(sd_bus_message_unrefp) sd_bus_message *m = NULL;
1399 _cleanup_(link_info_clear) struct link_info link_info = {};
1400 _cleanup_free_ char *ifi = NULL, *p = NULL;
1401 char ifname[IF_NAMESIZE] = "";
1402 char **i;
1403 int r;
1404
1405 assert(bus);
1406 assert(ifindex > 0);
1407
1408 if (!name) {
1409 if (!if_indextoname(ifindex, ifname))
1410 return log_error_errno(errno, "Failed to resolve interface name for %i: %m", ifindex);
1411
1412 name = ifname;
1413 }
1414
1415 if (asprintf(&ifi, "%i", ifindex) < 0)
1416 return log_oom();
1417
1418 r = sd_bus_path_encode("/org/freedesktop/resolve1/link", ifi, &p);
1419 if (r < 0)
1420 return log_oom();
1421
1422 r = bus_map_all_properties(bus,
1423 "org.freedesktop.resolve1",
1424 p,
1425 property_map,
1426 BUS_MAP_BOOLEAN_AS_BOOL,
1427 &error,
1428 &m,
1429 &link_info);
1430 if (r < 0)
1431 return log_error_errno(r, "Failed to get link data for %i: %s", ifindex, bus_error_message(&error, r));
1432
1433 (void) pager_open(arg_pager_flags);
1434
1435 if (mode == STATUS_DNS)
1436 return status_print_strv_ifindex(ifindex, name, link_info.dns);
1437
1438 if (mode == STATUS_DOMAIN)
1439 return status_print_strv_ifindex(ifindex, name, link_info.domains);
1440
1441 if (mode == STATUS_NTA)
1442 return status_print_strv_ifindex(ifindex, name, link_info.ntas);
1443
1444 if (mode == STATUS_LLMNR) {
1445 printf("%sLink %i (%s)%s: %s\n",
1446 ansi_highlight(), ifindex, name, ansi_normal(),
1447 strna(link_info.llmnr));
1448
1449 return 0;
1450 }
1451
1452 if (mode == STATUS_MDNS) {
1453 printf("%sLink %i (%s)%s: %s\n",
1454 ansi_highlight(), ifindex, name, ansi_normal(),
1455 strna(link_info.mdns));
1456
1457 return 0;
1458 }
1459
1460 if (mode == STATUS_PRIVATE) {
1461 printf("%sLink %i (%s)%s: %s\n",
1462 ansi_highlight(), ifindex, name, ansi_normal(),
1463 strna(link_info.dns_over_tls));
1464
1465 return 0;
1466 }
1467
1468 if (mode == STATUS_DNSSEC) {
1469 printf("%sLink %i (%s)%s: %s\n",
1470 ansi_highlight(), ifindex, name, ansi_normal(),
1471 strna(link_info.dnssec));
1472
1473 return 0;
1474 }
1475
1476 if (empty_line && *empty_line)
1477 fputc('\n', stdout);
1478
1479 printf("%sLink %i (%s)%s\n",
1480 ansi_highlight(), ifindex, name, ansi_normal());
1481
1482 if (link_info.scopes_mask == 0)
1483 printf(" Current Scopes: none\n");
1484 else
1485 printf(" Current Scopes:%s%s%s%s%s\n",
1486 link_info.scopes_mask & SD_RESOLVED_DNS ? " DNS" : "",
1487 link_info.scopes_mask & SD_RESOLVED_LLMNR_IPV4 ? " LLMNR/IPv4" : "",
1488 link_info.scopes_mask & SD_RESOLVED_LLMNR_IPV6 ? " LLMNR/IPv6" : "",
1489 link_info.scopes_mask & SD_RESOLVED_MDNS_IPV4 ? " mDNS/IPv4" : "",
1490 link_info.scopes_mask & SD_RESOLVED_MDNS_IPV6 ? " mDNS/IPv6" : "");
1491
1492 printf(" LLMNR setting: %s\n"
1493 "MulticastDNS setting: %s\n"
1494 " DNSOverTLS setting: %s\n"
1495 " DNSSEC setting: %s\n"
1496 " DNSSEC supported: %s\n",
1497 strna(link_info.llmnr),
1498 strna(link_info.mdns),
1499 strna(link_info.dns_over_tls),
1500 strna(link_info.dnssec),
1501 yes_no(link_info.dnssec_supported));
1502
1503 if (link_info.current_dns)
1504 printf(" Current DNS Server: %s\n", link_info.current_dns);
1505
1506 STRV_FOREACH(i, link_info.dns) {
1507 printf(" %s %s\n",
1508 i == link_info.dns ? "DNS Servers:" : " ",
1509 *i);
1510 }
1511
1512 STRV_FOREACH(i, link_info.domains) {
1513 printf(" %s %s\n",
1514 i == link_info.domains ? "DNS Domain:" : " ",
1515 *i);
1516 }
1517
1518 STRV_FOREACH(i, link_info.ntas) {
1519 printf(" %s %s\n",
1520 i == link_info.ntas ? "DNSSEC NTA:" : " ",
1521 *i);
1522 }
1523
1524 if (empty_line)
1525 *empty_line = true;
1526
1527 return 0;
1528 }
1529
1530 static int map_global_dns_servers(sd_bus *bus, const char *member, sd_bus_message *m, sd_bus_error *error, void *userdata) {
1531 char ***l = userdata;
1532 int r;
1533
1534 assert(bus);
1535 assert(member);
1536 assert(m);
1537 assert(l);
1538
1539 r = sd_bus_message_enter_container(m, 'a', "(iiay)");
1540 if (r < 0)
1541 return r;
1542
1543 for (;;) {
1544 char *pretty = NULL;
1545
1546 r = read_dns_server_one(m, true, &pretty);
1547 if (r < 0)
1548 return r;
1549 if (r == 0)
1550 break;
1551
1552 if (isempty(pretty))
1553 continue;
1554
1555 r = strv_consume(l, pretty);
1556 if (r < 0)
1557 return r;
1558 }
1559
1560 r = sd_bus_message_exit_container(m);
1561 if (r < 0)
1562 return r;
1563
1564 return 0;
1565 }
1566
1567 static int map_global_current_dns_server(sd_bus *bus, const char *member, sd_bus_message *m, sd_bus_error *error, void *userdata) {
1568 assert(m);
1569 assert(userdata);
1570
1571 return read_dns_server_one(m, true, userdata);
1572 }
1573
1574 static int map_global_domains(sd_bus *bus, const char *member, sd_bus_message *m, sd_bus_error *error, void *userdata) {
1575 char ***l = userdata;
1576 int r;
1577
1578 assert(bus);
1579 assert(member);
1580 assert(m);
1581 assert(l);
1582
1583 r = sd_bus_message_enter_container(m, 'a', "(isb)");
1584 if (r < 0)
1585 return r;
1586
1587 for (;;) {
1588 char *pretty = NULL;
1589
1590 r = read_domain_one(m, true, &pretty);
1591 if (r < 0)
1592 return r;
1593 if (r == 0)
1594 break;
1595
1596 if (isempty(pretty))
1597 continue;
1598
1599 r = strv_consume(l, pretty);
1600 if (r < 0)
1601 return r;
1602 }
1603
1604 r = sd_bus_message_exit_container(m);
1605 if (r < 0)
1606 return r;
1607
1608 return 0;
1609 }
1610
1611 static int status_print_strv_global(char **p) {
1612 char **i;
1613
1614 printf("%sGlobal%s:", ansi_highlight(), ansi_normal());
1615
1616 STRV_FOREACH(i, p)
1617 printf(" %s", *i);
1618
1619 printf("\n");
1620
1621 return 0;
1622 }
1623
1624 struct global_info {
1625 char *current_dns;
1626 char **dns;
1627 char **fallback_dns;
1628 char **domains;
1629 char **ntas;
1630 const char *llmnr;
1631 const char *mdns;
1632 const char *dns_over_tls;
1633 const char *dnssec;
1634 bool dnssec_supported;
1635 };
1636
1637 static void global_info_clear(struct global_info *p) {
1638 free(p->current_dns);
1639 strv_free(p->dns);
1640 strv_free(p->fallback_dns);
1641 strv_free(p->domains);
1642 strv_free(p->ntas);
1643 }
1644
1645 static int status_global(sd_bus *bus, StatusMode mode, bool *empty_line) {
1646 static const struct bus_properties_map property_map[] = {
1647 { "DNS", "a(iiay)", map_global_dns_servers, offsetof(struct global_info, dns) },
1648 { "FallbackDNS", "a(iiay)", map_global_dns_servers, offsetof(struct global_info, fallback_dns) },
1649 { "CurrentDNSServer", "(iiay)", map_global_current_dns_server, offsetof(struct global_info, current_dns) },
1650 { "Domains", "a(isb)", map_global_domains, offsetof(struct global_info, domains) },
1651 { "DNSSECNegativeTrustAnchors", "as", NULL, offsetof(struct global_info, ntas) },
1652 { "LLMNR", "s", NULL, offsetof(struct global_info, llmnr) },
1653 { "MulticastDNS", "s", NULL, offsetof(struct global_info, mdns) },
1654 { "DNSOverTLS", "s", NULL, offsetof(struct global_info, dns_over_tls) },
1655 { "DNSSEC", "s", NULL, offsetof(struct global_info, dnssec) },
1656 { "DNSSECSupported", "b", NULL, offsetof(struct global_info, dnssec_supported) },
1657 {}
1658 };
1659 _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
1660 _cleanup_(sd_bus_message_unrefp) sd_bus_message *m = NULL;
1661 _cleanup_(global_info_clear) struct global_info global_info = {};
1662 char **i;
1663 int r;
1664
1665 assert(bus);
1666 assert(empty_line);
1667
1668 r = bus_map_all_properties(bus,
1669 "org.freedesktop.resolve1",
1670 "/org/freedesktop/resolve1",
1671 property_map,
1672 BUS_MAP_BOOLEAN_AS_BOOL,
1673 &error,
1674 &m,
1675 &global_info);
1676 if (r < 0)
1677 return log_error_errno(r, "Failed to get global data: %s", bus_error_message(&error, r));
1678
1679 (void) pager_open(arg_pager_flags);
1680
1681 if (mode == STATUS_DNS)
1682 return status_print_strv_global(global_info.dns);
1683
1684 if (mode == STATUS_DOMAIN)
1685 return status_print_strv_global(global_info.domains);
1686
1687 if (mode == STATUS_NTA)
1688 return status_print_strv_global(global_info.ntas);
1689
1690 if (mode == STATUS_LLMNR) {
1691 printf("%sGlobal%s: %s\n", ansi_highlight(), ansi_normal(),
1692 strna(global_info.llmnr));
1693
1694 return 0;
1695 }
1696
1697 if (mode == STATUS_MDNS) {
1698 printf("%sGlobal%s: %s\n", ansi_highlight(), ansi_normal(),
1699 strna(global_info.mdns));
1700
1701 return 0;
1702 }
1703
1704 if (mode == STATUS_PRIVATE) {
1705 printf("%sGlobal%s: %s\n", ansi_highlight(), ansi_normal(),
1706 strna(global_info.dns_over_tls));
1707
1708 return 0;
1709 }
1710
1711 if (mode == STATUS_DNSSEC) {
1712 printf("%sGlobal%s: %s\n", ansi_highlight(), ansi_normal(),
1713 strna(global_info.dnssec));
1714
1715 return 0;
1716 }
1717
1718 printf("%sGlobal%s\n", ansi_highlight(), ansi_normal());
1719
1720 printf(" LLMNR setting: %s\n"
1721 "MulticastDNS setting: %s\n"
1722 " DNSOverTLS setting: %s\n"
1723 " DNSSEC setting: %s\n"
1724 " DNSSEC supported: %s\n",
1725 strna(global_info.llmnr),
1726 strna(global_info.mdns),
1727 strna(global_info.dns_over_tls),
1728 strna(global_info.dnssec),
1729 yes_no(global_info.dnssec_supported));
1730
1731 if (global_info.current_dns)
1732 printf(" Current DNS Server: %s\n", global_info.current_dns);
1733
1734 STRV_FOREACH(i, global_info.dns) {
1735 printf(" %s %s\n",
1736 i == global_info.dns ? "DNS Servers:" : " ",
1737 *i);
1738 }
1739
1740 STRV_FOREACH(i, global_info.fallback_dns) {
1741 printf("%s %s\n",
1742 i == global_info.fallback_dns ? "Fallback DNS Servers:" : " ",
1743 *i);
1744 }
1745
1746 STRV_FOREACH(i, global_info.domains) {
1747 printf(" %s %s\n",
1748 i == global_info.domains ? "DNS Domain:" : " ",
1749 *i);
1750 }
1751
1752 strv_sort(global_info.ntas);
1753 STRV_FOREACH(i, global_info.ntas) {
1754 printf(" %s %s\n",
1755 i == global_info.ntas ? "DNSSEC NTA:" : " ",
1756 *i);
1757 }
1758
1759 *empty_line = true;
1760
1761 return 0;
1762 }
1763
1764 static int status_all(sd_bus *bus, StatusMode mode) {
1765 _cleanup_(sd_netlink_message_unrefp) sd_netlink_message *req = NULL, *reply = NULL;
1766 _cleanup_(sd_netlink_unrefp) sd_netlink *rtnl = NULL;
1767 sd_netlink_message *i;
1768 bool empty_line = false;
1769 int r;
1770
1771 assert(bus);
1772
1773 r = status_global(bus, mode, &empty_line);
1774 if (r < 0)
1775 return r;
1776
1777 r = sd_netlink_open(&rtnl);
1778 if (r < 0)
1779 return log_error_errno(r, "Failed to connect to netlink: %m");
1780
1781 r = sd_rtnl_message_new_link(rtnl, &req, RTM_GETLINK, 0);
1782 if (r < 0)
1783 return rtnl_log_create_error(r);
1784
1785 r = sd_netlink_message_request_dump(req, true);
1786 if (r < 0)
1787 return rtnl_log_create_error(r);
1788
1789 r = sd_netlink_call(rtnl, req, 0, &reply);
1790 if (r < 0)
1791 return log_error_errno(r, "Failed to enumerate links: %m");
1792
1793 r = 0;
1794 for (i = reply; i; i = sd_netlink_message_next(i)) {
1795 const char *name;
1796 int ifindex, q;
1797 uint16_t type;
1798
1799 q = sd_netlink_message_get_type(i, &type);
1800 if (q < 0)
1801 return rtnl_log_parse_error(q);
1802
1803 if (type != RTM_NEWLINK)
1804 continue;
1805
1806 q = sd_rtnl_message_link_get_ifindex(i, &ifindex);
1807 if (q < 0)
1808 return rtnl_log_parse_error(q);
1809
1810 if (ifindex == LOOPBACK_IFINDEX)
1811 continue;
1812
1813 q = sd_netlink_message_read_string(i, IFLA_IFNAME, &name);
1814 if (q < 0)
1815 return rtnl_log_parse_error(q);
1816
1817 q = status_ifindex(bus, ifindex, name, mode, &empty_line);
1818 if (q < 0 && r >= 0)
1819 r = q;
1820 }
1821
1822 return r;
1823 }
1824
1825 static int verb_status(int argc, char **argv, void *userdata) {
1826 sd_bus *bus = userdata;
1827 int q, r = 0;
1828
1829 if (argc > 1) {
1830 char **ifname;
1831 bool empty_line = false;
1832
1833 STRV_FOREACH(ifname, argv + 1) {
1834 int ifindex;
1835
1836 ifindex = parse_ifindex_and_warn(*ifname);
1837 if (ifindex < 0)
1838 continue;
1839
1840 q = status_ifindex(bus, ifindex, NULL, STATUS_ALL, &empty_line);
1841 if (q < 0)
1842 r = q;
1843 }
1844 } else
1845 r = status_all(bus, STATUS_ALL);
1846
1847 return r;
1848 }
1849
1850 static int log_interface_is_managed(int r, int ifindex) {
1851 char ifname[IFNAMSIZ];
1852
1853 return log_error_errno(r,
1854 "The specified interface %s is managed by systemd-networkd. Operation refused.\n"
1855 "Please configure DNS settings for systemd-networkd managed interfaces directly in their .network files.",
1856 strna(if_indextoname(ifindex, ifname)));
1857 }
1858
1859 static int verb_dns(int argc, char **argv, void *userdata) {
1860 _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
1861 _cleanup_(sd_bus_message_unrefp) sd_bus_message *req = NULL;
1862 sd_bus *bus = userdata;
1863 char **p;
1864 int r;
1865
1866 assert(bus);
1867
1868 if (argc >= 2) {
1869 r = ifname_mangle(argv[1]);
1870 if (r < 0)
1871 return r;
1872 }
1873
1874 if (arg_ifindex <= 0)
1875 return status_all(bus, STATUS_DNS);
1876
1877 if (argc < 3)
1878 return status_ifindex(bus, arg_ifindex, NULL, STATUS_DNS, NULL);
1879
1880 r = sd_bus_message_new_method_call(
1881 bus,
1882 &req,
1883 "org.freedesktop.resolve1",
1884 "/org/freedesktop/resolve1",
1885 "org.freedesktop.resolve1.Manager",
1886 "SetLinkDNS");
1887 if (r < 0)
1888 return bus_log_create_error(r);
1889
1890 r = sd_bus_message_append(req, "i", arg_ifindex);
1891 if (r < 0)
1892 return bus_log_create_error(r);
1893
1894 r = sd_bus_message_open_container(req, 'a', "(iay)");
1895 if (r < 0)
1896 return bus_log_create_error(r);
1897
1898 /* If only argument is the empty string, then call SetLinkDNS() with an
1899 * empty list, which will clear the list of domains for an interface. */
1900 if (!strv_equal(argv + 2, STRV_MAKE(""))) {
1901 STRV_FOREACH(p, argv + 2) {
1902 struct in_addr_data data;
1903
1904 r = in_addr_from_string_auto(*p, &data.family, &data.address);
1905 if (r < 0)
1906 return log_error_errno(r, "Failed to parse DNS server address: %s", *p);
1907
1908 r = sd_bus_message_open_container(req, 'r', "iay");
1909 if (r < 0)
1910 return bus_log_create_error(r);
1911
1912 r = sd_bus_message_append(req, "i", data.family);
1913 if (r < 0)
1914 return bus_log_create_error(r);
1915
1916 r = sd_bus_message_append_array(req, 'y', &data.address, FAMILY_ADDRESS_SIZE(data.family));
1917 if (r < 0)
1918 return bus_log_create_error(r);
1919
1920 r = sd_bus_message_close_container(req);
1921 if (r < 0)
1922 return bus_log_create_error(r);
1923 }
1924 }
1925
1926 r = sd_bus_message_close_container(req);
1927 if (r < 0)
1928 return bus_log_create_error(r);
1929
1930 r = sd_bus_call(bus, req, 0, &error, NULL);
1931 if (r < 0) {
1932 if (sd_bus_error_has_name(&error, BUS_ERROR_LINK_BUSY))
1933 return log_interface_is_managed(r, arg_ifindex);
1934
1935 if (arg_ifindex_permissive &&
1936 sd_bus_error_has_name(&error, BUS_ERROR_NO_SUCH_LINK))
1937 return 0;
1938
1939 return log_error_errno(r, "Failed to set DNS configuration: %s", bus_error_message(&error, r));
1940 }
1941
1942 return 0;
1943 }
1944
1945 static int verb_domain(int argc, char **argv, void *userdata) {
1946 _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
1947 _cleanup_(sd_bus_message_unrefp) sd_bus_message *req = NULL;
1948 sd_bus *bus = userdata;
1949 char **p;
1950 int r;
1951
1952 assert(bus);
1953
1954 if (argc >= 2) {
1955 r = ifname_mangle(argv[1]);
1956 if (r < 0)
1957 return r;
1958 }
1959
1960 if (arg_ifindex <= 0)
1961 return status_all(bus, STATUS_DOMAIN);
1962
1963 if (argc < 3)
1964 return status_ifindex(bus, arg_ifindex, NULL, STATUS_DOMAIN, NULL);
1965
1966 r = sd_bus_message_new_method_call(
1967 bus,
1968 &req,
1969 "org.freedesktop.resolve1",
1970 "/org/freedesktop/resolve1",
1971 "org.freedesktop.resolve1.Manager",
1972 "SetLinkDomains");
1973 if (r < 0)
1974 return bus_log_create_error(r);
1975
1976 r = sd_bus_message_append(req, "i", arg_ifindex);
1977 if (r < 0)
1978 return bus_log_create_error(r);
1979
1980 r = sd_bus_message_open_container(req, 'a', "(sb)");
1981 if (r < 0)
1982 return bus_log_create_error(r);
1983
1984 /* If only argument is the empty string, then call SetLinkDomains() with an
1985 * empty list, which will clear the list of domains for an interface. */
1986 if (!strv_equal(argv + 2, STRV_MAKE(""))) {
1987 STRV_FOREACH(p, argv + 2) {
1988 const char *n;
1989
1990 n = **p == '~' ? *p + 1 : *p;
1991
1992 r = dns_name_is_valid(n);
1993 if (r < 0)
1994 return log_error_errno(r, "Failed to validate specified domain %s: %m", n);
1995 if (r == 0) {
1996 log_error("Domain not valid: %s", n);
1997 return -EINVAL;
1998 }
1999
2000 r = sd_bus_message_append(req, "(sb)", n, **p == '~');
2001 if (r < 0)
2002 return bus_log_create_error(r);
2003 }
2004 }
2005
2006 r = sd_bus_message_close_container(req);
2007 if (r < 0)
2008 return bus_log_create_error(r);
2009
2010 r = sd_bus_call(bus, req, 0, &error, NULL);
2011 if (r < 0) {
2012 if (sd_bus_error_has_name(&error, BUS_ERROR_LINK_BUSY))
2013 return log_interface_is_managed(r, arg_ifindex);
2014
2015 if (arg_ifindex_permissive &&
2016 sd_bus_error_has_name(&error, BUS_ERROR_NO_SUCH_LINK))
2017 return 0;
2018
2019 return log_error_errno(r, "Failed to set domain configuration: %s", bus_error_message(&error, r));
2020 }
2021
2022 return 0;
2023 }
2024
2025 static int verb_llmnr(int argc, char **argv, void *userdata) {
2026 _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
2027 sd_bus *bus = userdata;
2028 int r;
2029
2030 assert(bus);
2031
2032 if (argc >= 2) {
2033 r = ifname_mangle(argv[1]);
2034 if (r < 0)
2035 return r;
2036 }
2037
2038 if (arg_ifindex <= 0)
2039 return status_all(bus, STATUS_LLMNR);
2040
2041 if (argc < 3)
2042 return status_ifindex(bus, arg_ifindex, NULL, STATUS_LLMNR, NULL);
2043
2044 r = sd_bus_call_method(bus,
2045 "org.freedesktop.resolve1",
2046 "/org/freedesktop/resolve1",
2047 "org.freedesktop.resolve1.Manager",
2048 "SetLinkLLMNR",
2049 &error,
2050 NULL,
2051 "is", arg_ifindex, argv[2]);
2052 if (r < 0) {
2053 if (sd_bus_error_has_name(&error, BUS_ERROR_LINK_BUSY))
2054 return log_interface_is_managed(r, arg_ifindex);
2055
2056 if (arg_ifindex_permissive &&
2057 sd_bus_error_has_name(&error, BUS_ERROR_NO_SUCH_LINK))
2058 return 0;
2059
2060 return log_error_errno(r, "Failed to set LLMNR configuration: %s", bus_error_message(&error, r));
2061 }
2062
2063 return 0;
2064 }
2065
2066 static int verb_mdns(int argc, char **argv, void *userdata) {
2067 _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
2068 sd_bus *bus = userdata;
2069 int r;
2070
2071 assert(bus);
2072
2073 if (argc >= 2) {
2074 r = ifname_mangle(argv[1]);
2075 if (r < 0)
2076 return r;
2077 }
2078
2079 if (arg_ifindex <= 0)
2080 return status_all(bus, STATUS_MDNS);
2081
2082 if (argc < 3)
2083 return status_ifindex(bus, arg_ifindex, NULL, STATUS_MDNS, NULL);
2084
2085 r = sd_bus_call_method(bus,
2086 "org.freedesktop.resolve1",
2087 "/org/freedesktop/resolve1",
2088 "org.freedesktop.resolve1.Manager",
2089 "SetLinkMulticastDNS",
2090 &error,
2091 NULL,
2092 "is", arg_ifindex, argv[2]);
2093 if (r < 0) {
2094 if (sd_bus_error_has_name(&error, BUS_ERROR_LINK_BUSY))
2095 return log_interface_is_managed(r, arg_ifindex);
2096
2097 if (arg_ifindex_permissive &&
2098 sd_bus_error_has_name(&error, BUS_ERROR_NO_SUCH_LINK))
2099 return 0;
2100
2101 return log_error_errno(r, "Failed to set MulticastDNS configuration: %s", bus_error_message(&error, r));
2102 }
2103
2104 return 0;
2105 }
2106
2107 static int verb_dns_over_tls(int argc, char **argv, void *userdata) {
2108 _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
2109 sd_bus *bus = userdata;
2110 int r;
2111
2112 assert(bus);
2113
2114 if (argc >= 2) {
2115 r = ifname_mangle(argv[1]);
2116 if (r < 0)
2117 return r;
2118 }
2119
2120 if (arg_ifindex <= 0)
2121 return status_all(bus, STATUS_PRIVATE);
2122
2123 if (argc < 3)
2124 return status_ifindex(bus, arg_ifindex, NULL, STATUS_PRIVATE, NULL);
2125
2126 r = sd_bus_call_method(bus,
2127 "org.freedesktop.resolve1",
2128 "/org/freedesktop/resolve1",
2129 "org.freedesktop.resolve1.Manager",
2130 "SetLinkDNSOverTLS",
2131 &error,
2132 NULL,
2133 "is", arg_ifindex, argv[2]);
2134 if (r < 0) {
2135 if (sd_bus_error_has_name(&error, BUS_ERROR_LINK_BUSY))
2136 return log_interface_is_managed(r, arg_ifindex);
2137
2138 if (arg_ifindex_permissive &&
2139 sd_bus_error_has_name(&error, BUS_ERROR_NO_SUCH_LINK))
2140 return 0;
2141
2142 return log_error_errno(r, "Failed to set DNSOverTLS configuration: %s", bus_error_message(&error, r));
2143 }
2144
2145 return 0;
2146 }
2147
2148 static int verb_dnssec(int argc, char **argv, void *userdata) {
2149 _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
2150 sd_bus *bus = userdata;
2151 int r;
2152
2153 assert(bus);
2154
2155 if (argc >= 2) {
2156 r = ifname_mangle(argv[1]);
2157 if (r < 0)
2158 return r;
2159 }
2160
2161 if (arg_ifindex <= 0)
2162 return status_all(bus, STATUS_DNSSEC);
2163
2164 if (argc < 3)
2165 return status_ifindex(bus, arg_ifindex, NULL, STATUS_DNSSEC, NULL);
2166
2167 r = sd_bus_call_method(bus,
2168 "org.freedesktop.resolve1",
2169 "/org/freedesktop/resolve1",
2170 "org.freedesktop.resolve1.Manager",
2171 "SetLinkDNSSEC",
2172 &error,
2173 NULL,
2174 "is", arg_ifindex, argv[2]);
2175 if (r < 0) {
2176 if (sd_bus_error_has_name(&error, BUS_ERROR_LINK_BUSY))
2177 return log_interface_is_managed(r, arg_ifindex);
2178
2179 if (arg_ifindex_permissive &&
2180 sd_bus_error_has_name(&error, BUS_ERROR_NO_SUCH_LINK))
2181 return 0;
2182
2183 return log_error_errno(r, "Failed to set DNSSEC configuration: %s", bus_error_message(&error, r));
2184 }
2185
2186 return 0;
2187 }
2188
2189 static int verb_nta(int argc, char **argv, void *userdata) {
2190 _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
2191 _cleanup_(sd_bus_message_unrefp) sd_bus_message *req = NULL;
2192 sd_bus *bus = userdata;
2193 char **p;
2194 int r;
2195 bool clear;
2196
2197 assert(bus);
2198
2199 if (argc >= 2) {
2200 r = ifname_mangle(argv[1]);
2201 if (r < 0)
2202 return r;
2203 }
2204
2205 if (arg_ifindex <= 0)
2206 return status_all(bus, STATUS_NTA);
2207
2208 if (argc < 3)
2209 return status_ifindex(bus, arg_ifindex, NULL, STATUS_NTA, NULL);
2210
2211 /* If only argument is the empty string, then call SetLinkDNSSECNegativeTrustAnchors()
2212 * with an empty list, which will clear the list of domains for an interface. */
2213 clear = strv_equal(argv + 2, STRV_MAKE(""));
2214
2215 if (!clear)
2216 STRV_FOREACH(p, argv + 2) {
2217 r = dns_name_is_valid(*p);
2218 if (r < 0)
2219 return log_error_errno(r, "Failed to validate specified domain %s: %m", *p);
2220 if (r == 0) {
2221 log_error("Domain not valid: %s", *p);
2222 return -EINVAL;
2223 }
2224 }
2225
2226 r = sd_bus_message_new_method_call(
2227 bus,
2228 &req,
2229 "org.freedesktop.resolve1",
2230 "/org/freedesktop/resolve1",
2231 "org.freedesktop.resolve1.Manager",
2232 "SetLinkDNSSECNegativeTrustAnchors");
2233 if (r < 0)
2234 return bus_log_create_error(r);
2235
2236 r = sd_bus_message_append(req, "i", arg_ifindex);
2237 if (r < 0)
2238 return bus_log_create_error(r);
2239
2240 r = sd_bus_message_append_strv(req, clear ? NULL : argv + 2);
2241 if (r < 0)
2242 return bus_log_create_error(r);
2243
2244 r = sd_bus_call(bus, req, 0, &error, NULL);
2245 if (r < 0) {
2246 if (sd_bus_error_has_name(&error, BUS_ERROR_LINK_BUSY))
2247 return log_interface_is_managed(r, arg_ifindex);
2248
2249 if (arg_ifindex_permissive &&
2250 sd_bus_error_has_name(&error, BUS_ERROR_NO_SUCH_LINK))
2251 return 0;
2252
2253 return log_error_errno(r, "Failed to set DNSSEC NTA configuration: %s", bus_error_message(&error, r));
2254 }
2255
2256 return 0;
2257 }
2258
2259 static int verb_revert_link(int argc, char **argv, void *userdata) {
2260 _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
2261 sd_bus *bus = userdata;
2262 int r;
2263
2264 assert(bus);
2265
2266 if (argc >= 2) {
2267 r = ifname_mangle(argv[1]);
2268 if (r < 0)
2269 return r;
2270 }
2271
2272 if (arg_ifindex <= 0)
2273 return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "Interface argument required.");
2274
2275 r = sd_bus_call_method(bus,
2276 "org.freedesktop.resolve1",
2277 "/org/freedesktop/resolve1",
2278 "org.freedesktop.resolve1.Manager",
2279 "RevertLink",
2280 &error,
2281 NULL,
2282 "i", arg_ifindex);
2283 if (r < 0) {
2284 if (arg_ifindex_permissive &&
2285 sd_bus_error_has_name(&error, BUS_ERROR_NO_SUCH_LINK))
2286 return 0;
2287
2288 return log_error_errno(r, "Failed to revert interface configuration: %s", bus_error_message(&error, r));
2289 }
2290
2291 return 0;
2292 }
2293
2294 static void help_protocol_types(void) {
2295 if (arg_legend)
2296 puts("Known protocol types:");
2297 puts("dns\nllmnr\nllmnr-ipv4\nllmnr-ipv6\nmdns\nmdns-ipv4\nmdns-ipv6");
2298 }
2299
2300 static void help_dns_types(void) {
2301 if (arg_legend)
2302 puts("Known DNS RR types:");
2303
2304 DUMP_STRING_TABLE(dns_type, int, _DNS_TYPE_MAX);
2305 }
2306
2307 static void help_dns_classes(void) {
2308 if (arg_legend)
2309 puts("Known DNS RR classes:");
2310
2311 DUMP_STRING_TABLE(dns_class, int, _DNS_CLASS_MAX);
2312 }
2313
2314 static int compat_help(void) {
2315 _cleanup_free_ char *link = NULL;
2316 int r;
2317
2318 r = terminal_urlify_man("resolvectl", "1", &link);
2319 if (r < 0)
2320 return log_oom();
2321
2322 printf("%1$s [OPTIONS...] HOSTNAME|ADDRESS...\n"
2323 "%1$s [OPTIONS...] --service [[NAME] TYPE] DOMAIN\n"
2324 "%1$s [OPTIONS...] --openpgp EMAIL@DOMAIN...\n"
2325 "%1$s [OPTIONS...] --statistics\n"
2326 "%1$s [OPTIONS...] --reset-statistics\n"
2327 "\n"
2328 "Resolve domain names, IPv4 and IPv6 addresses, DNS records, and services.\n\n"
2329 " -h --help Show this help\n"
2330 " --version Show package version\n"
2331 " --no-pager Do not pipe output into a pager\n"
2332 " -4 Resolve IPv4 addresses\n"
2333 " -6 Resolve IPv6 addresses\n"
2334 " -i --interface=INTERFACE Look on interface\n"
2335 " -p --protocol=PROTO|help Look via protocol\n"
2336 " -t --type=TYPE|help Query RR with DNS type\n"
2337 " -c --class=CLASS|help Query RR with DNS class\n"
2338 " --service Resolve service (SRV)\n"
2339 " --service-address=BOOL Resolve address for services (default: yes)\n"
2340 " --service-txt=BOOL Resolve TXT records for services (default: yes)\n"
2341 " --openpgp Query OpenPGP public key\n"
2342 " --tlsa Query TLS public key\n"
2343 " --cname=BOOL Follow CNAME redirects (default: yes)\n"
2344 " --search=BOOL Use search domains for single-label names\n"
2345 " (default: yes)\n"
2346 " --raw[=payload|packet] Dump the answer as binary data\n"
2347 " --legend=BOOL Print headers and additional info (default: yes)\n"
2348 " --statistics Show resolver statistics\n"
2349 " --reset-statistics Reset resolver statistics\n"
2350 " --status Show link and server status\n"
2351 " --flush-caches Flush all local DNS caches\n"
2352 " --reset-server-features\n"
2353 " Forget learnt DNS server feature levels\n"
2354 " --set-dns=SERVER Set per-interface DNS server address\n"
2355 " --set-domain=DOMAIN Set per-interface search domain\n"
2356 " --set-llmnr=MODE Set per-interface LLMNR mode\n"
2357 " --set-mdns=MODE Set per-interface MulticastDNS mode\n"
2358 " --set-dnsovertls=MODE Set per-interface DNS-over-TLS mode\n"
2359 " --set-dnssec=MODE Set per-interface DNSSEC mode\n"
2360 " --set-nta=DOMAIN Set per-interface DNSSEC NTA\n"
2361 " --revert Revert per-interface configuration\n"
2362 "\nSee the %2$s for details.\n"
2363 , program_invocation_short_name
2364 , link
2365 );
2366
2367 return 0;
2368 }
2369
2370 static int native_help(void) {
2371 _cleanup_free_ char *link = NULL;
2372 int r;
2373
2374 r = terminal_urlify_man("resolvectl", "1", &link);
2375 if (r < 0)
2376 return log_oom();
2377
2378 printf("%1$s [OPTIONS...] {COMMAND} ...\n"
2379 "\n"
2380 "Send control commands to the network name resolution manager, or\n"
2381 "resolve domain names, IPv4 and IPv6 addresses, DNS records, and services.\n"
2382 "\n"
2383 " -h --help Show this help\n"
2384 " --version Show package version\n"
2385 " --no-pager Do not pipe output into a pager\n"
2386 " -4 Resolve IPv4 addresses\n"
2387 " -6 Resolve IPv6 addresses\n"
2388 " -i --interface=INTERFACE Look on interface\n"
2389 " -p --protocol=PROTO|help Look via protocol\n"
2390 " -t --type=TYPE|help Query RR with DNS type\n"
2391 " -c --class=CLASS|help Query RR with DNS class\n"
2392 " --service-address=BOOL Resolve address for services (default: yes)\n"
2393 " --service-txt=BOOL Resolve TXT records for services (default: yes)\n"
2394 " --cname=BOOL Follow CNAME redirects (default: yes)\n"
2395 " --search=BOOL Use search domains for single-label names\n"
2396 " (default: yes)\n"
2397 " --raw[=payload|packet] Dump the answer as binary data\n"
2398 " --legend=BOOL Print headers and additional info (default: yes)\n"
2399 "\n"
2400 "Commands:\n"
2401 " query HOSTNAME|ADDRESS... Resolve domain names, IPv4 and IPv6 addresses\n"
2402 " service [[NAME] TYPE] DOMAIN Resolve service (SRV)\n"
2403 " openpgp EMAIL@DOMAIN... Query OpenPGP public key\n"
2404 " tlsa DOMAIN[:PORT]... Query TLS public key\n"
2405 " status [LINK...] Show link and server status\n"
2406 " statistics Show resolver statistics\n"
2407 " reset-statistics Reset resolver statistics\n"
2408 " flush-caches Flush all local DNS caches\n"
2409 " reset-server-features Forget learnt DNS server feature levels\n"
2410 " dns [LINK [SERVER...]] Get/set per-interface DNS server address\n"
2411 " domain [LINK [DOMAIN...]] Get/set per-interface search domain\n"
2412 " llmnr [LINK [MODE]] Get/set per-interface LLMNR mode\n"
2413 " mdns [LINK [MODE]] Get/set per-interface MulticastDNS mode\n"
2414 " dnsovertls [LINK [MODE]] Get/set per-interface DNS-over-TLS mode\n"
2415 " dnssec [LINK [MODE]] Get/set per-interface DNSSEC mode\n"
2416 " nta [LINK [DOMAIN...]] Get/set per-interface DNSSEC NTA\n"
2417 " revert LINK Revert per-interface configuration\n"
2418 "\nSee the %2$s for details.\n"
2419 , program_invocation_short_name
2420 , link
2421 );
2422
2423 return 0;
2424 }
2425
2426 static int verb_help(int argc, char **argv, void *userdata) {
2427 return native_help();
2428 }
2429
2430 static int compat_parse_argv(int argc, char *argv[]) {
2431 enum {
2432 ARG_VERSION = 0x100,
2433 ARG_LEGEND,
2434 ARG_SERVICE,
2435 ARG_CNAME,
2436 ARG_SERVICE_ADDRESS,
2437 ARG_SERVICE_TXT,
2438 ARG_OPENPGP,
2439 ARG_TLSA,
2440 ARG_RAW,
2441 ARG_SEARCH,
2442 ARG_STATISTICS,
2443 ARG_RESET_STATISTICS,
2444 ARG_STATUS,
2445 ARG_FLUSH_CACHES,
2446 ARG_RESET_SERVER_FEATURES,
2447 ARG_NO_PAGER,
2448 ARG_SET_DNS,
2449 ARG_SET_DOMAIN,
2450 ARG_SET_LLMNR,
2451 ARG_SET_MDNS,
2452 ARG_SET_PRIVATE,
2453 ARG_SET_DNSSEC,
2454 ARG_SET_NTA,
2455 ARG_REVERT_LINK,
2456 };
2457
2458 static const struct option options[] = {
2459 { "help", no_argument, NULL, 'h' },
2460 { "version", no_argument, NULL, ARG_VERSION },
2461 { "type", required_argument, NULL, 't' },
2462 { "class", required_argument, NULL, 'c' },
2463 { "legend", required_argument, NULL, ARG_LEGEND },
2464 { "interface", required_argument, NULL, 'i' },
2465 { "protocol", required_argument, NULL, 'p' },
2466 { "cname", required_argument, NULL, ARG_CNAME },
2467 { "service", no_argument, NULL, ARG_SERVICE },
2468 { "service-address", required_argument, NULL, ARG_SERVICE_ADDRESS },
2469 { "service-txt", required_argument, NULL, ARG_SERVICE_TXT },
2470 { "openpgp", no_argument, NULL, ARG_OPENPGP },
2471 { "tlsa", optional_argument, NULL, ARG_TLSA },
2472 { "raw", optional_argument, NULL, ARG_RAW },
2473 { "search", required_argument, NULL, ARG_SEARCH },
2474 { "statistics", no_argument, NULL, ARG_STATISTICS, },
2475 { "reset-statistics", no_argument, NULL, ARG_RESET_STATISTICS },
2476 { "status", no_argument, NULL, ARG_STATUS },
2477 { "flush-caches", no_argument, NULL, ARG_FLUSH_CACHES },
2478 { "reset-server-features", no_argument, NULL, ARG_RESET_SERVER_FEATURES },
2479 { "no-pager", no_argument, NULL, ARG_NO_PAGER },
2480 { "set-dns", required_argument, NULL, ARG_SET_DNS },
2481 { "set-domain", required_argument, NULL, ARG_SET_DOMAIN },
2482 { "set-llmnr", required_argument, NULL, ARG_SET_LLMNR },
2483 { "set-mdns", required_argument, NULL, ARG_SET_MDNS },
2484 { "set-dnsovertls", required_argument, NULL, ARG_SET_PRIVATE },
2485 { "set-dnssec", required_argument, NULL, ARG_SET_DNSSEC },
2486 { "set-nta", required_argument, NULL, ARG_SET_NTA },
2487 { "revert", no_argument, NULL, ARG_REVERT_LINK },
2488 {}
2489 };
2490
2491 int c, r;
2492
2493 assert(argc >= 0);
2494 assert(argv);
2495
2496 while ((c = getopt_long(argc, argv, "h46i:t:c:p:", options, NULL)) >= 0)
2497 switch(c) {
2498
2499 case 'h':
2500 return compat_help();
2501
2502 case ARG_VERSION:
2503 return version();
2504
2505 case '4':
2506 arg_family = AF_INET;
2507 break;
2508
2509 case '6':
2510 arg_family = AF_INET6;
2511 break;
2512
2513 case 'i':
2514 r = ifname_mangle(optarg);
2515 if (r < 0)
2516 return r;
2517 break;
2518
2519 case 't':
2520 if (streq(optarg, "help")) {
2521 help_dns_types();
2522 return 0;
2523 }
2524
2525 r = dns_type_from_string(optarg);
2526 if (r < 0) {
2527 log_error("Failed to parse RR record type %s", optarg);
2528 return r;
2529 }
2530 arg_type = (uint16_t) r;
2531 assert((int) arg_type == r);
2532
2533 arg_mode = MODE_RESOLVE_RECORD;
2534 break;
2535
2536 case 'c':
2537 if (streq(optarg, "help")) {
2538 help_dns_classes();
2539 return 0;
2540 }
2541
2542 r = dns_class_from_string(optarg);
2543 if (r < 0) {
2544 log_error("Failed to parse RR record class %s", optarg);
2545 return r;
2546 }
2547 arg_class = (uint16_t) r;
2548 assert((int) arg_class == r);
2549
2550 break;
2551
2552 case ARG_LEGEND:
2553 r = parse_boolean(optarg);
2554 if (r < 0)
2555 return log_error_errno(r, "Failed to parse --legend= argument");
2556
2557 arg_legend = r;
2558 break;
2559
2560 case 'p':
2561 if (streq(optarg, "help")) {
2562 help_protocol_types();
2563 return 0;
2564 } else if (streq(optarg, "dns"))
2565 arg_flags |= SD_RESOLVED_DNS;
2566 else if (streq(optarg, "llmnr"))
2567 arg_flags |= SD_RESOLVED_LLMNR;
2568 else if (streq(optarg, "llmnr-ipv4"))
2569 arg_flags |= SD_RESOLVED_LLMNR_IPV4;
2570 else if (streq(optarg, "llmnr-ipv6"))
2571 arg_flags |= SD_RESOLVED_LLMNR_IPV6;
2572 else if (streq(optarg, "mdns"))
2573 arg_flags |= SD_RESOLVED_MDNS;
2574 else if (streq(optarg, "mdns-ipv4"))
2575 arg_flags |= SD_RESOLVED_MDNS_IPV4;
2576 else if (streq(optarg, "mdns-ipv6"))
2577 arg_flags |= SD_RESOLVED_MDNS_IPV6;
2578 else
2579 return log_error_errno(SYNTHETIC_ERRNO(EINVAL),
2580 "Unknown protocol specifier: %s", optarg);
2581
2582 break;
2583
2584 case ARG_SERVICE:
2585 arg_mode = MODE_RESOLVE_SERVICE;
2586 break;
2587
2588 case ARG_OPENPGP:
2589 arg_mode = MODE_RESOLVE_OPENPGP;
2590 break;
2591
2592 case ARG_TLSA:
2593 arg_mode = MODE_RESOLVE_TLSA;
2594 if (!optarg || service_family_is_valid(optarg))
2595 arg_service_family = optarg;
2596 else
2597 return log_error_errno(SYNTHETIC_ERRNO(EINVAL),
2598 "Unknown service family \"%s\".", optarg);
2599 break;
2600
2601 case ARG_RAW:
2602 if (on_tty())
2603 return log_error_errno(SYNTHETIC_ERRNO(ENOTTY),
2604 "Refusing to write binary data to tty.");
2605
2606 if (optarg == NULL || streq(optarg, "payload"))
2607 arg_raw = RAW_PAYLOAD;
2608 else if (streq(optarg, "packet"))
2609 arg_raw = RAW_PACKET;
2610 else
2611 return log_error_errno(SYNTHETIC_ERRNO(EINVAL),
2612 "Unknown --raw specifier \"%s\".",
2613 optarg);
2614
2615 arg_legend = false;
2616 break;
2617
2618 case ARG_CNAME:
2619 r = parse_boolean(optarg);
2620 if (r < 0)
2621 return log_error_errno(r, "Failed to parse --cname= argument.");
2622 SET_FLAG(arg_flags, SD_RESOLVED_NO_CNAME, r == 0);
2623 break;
2624
2625 case ARG_SERVICE_ADDRESS:
2626 r = parse_boolean(optarg);
2627 if (r < 0)
2628 return log_error_errno(r, "Failed to parse --service-address= argument.");
2629 SET_FLAG(arg_flags, SD_RESOLVED_NO_ADDRESS, r == 0);
2630 break;
2631
2632 case ARG_SERVICE_TXT:
2633 r = parse_boolean(optarg);
2634 if (r < 0)
2635 return log_error_errno(r, "Failed to parse --service-txt= argument.");
2636 SET_FLAG(arg_flags, SD_RESOLVED_NO_TXT, r == 0);
2637 break;
2638
2639 case ARG_SEARCH:
2640 r = parse_boolean(optarg);
2641 if (r < 0)
2642 return log_error_errno(r, "Failed to parse --search argument.");
2643 SET_FLAG(arg_flags, SD_RESOLVED_NO_SEARCH, r == 0);
2644 break;
2645
2646 case ARG_STATISTICS:
2647 arg_mode = MODE_STATISTICS;
2648 break;
2649
2650 case ARG_RESET_STATISTICS:
2651 arg_mode = MODE_RESET_STATISTICS;
2652 break;
2653
2654 case ARG_FLUSH_CACHES:
2655 arg_mode = MODE_FLUSH_CACHES;
2656 break;
2657
2658 case ARG_RESET_SERVER_FEATURES:
2659 arg_mode = MODE_RESET_SERVER_FEATURES;
2660 break;
2661
2662 case ARG_STATUS:
2663 arg_mode = MODE_STATUS;
2664 break;
2665
2666 case ARG_NO_PAGER:
2667 arg_pager_flags |= PAGER_DISABLE;
2668 break;
2669
2670 case ARG_SET_DNS:
2671 r = strv_extend(&arg_set_dns, optarg);
2672 if (r < 0)
2673 return log_oom();
2674
2675 arg_mode = MODE_SET_LINK;
2676 break;
2677
2678 case ARG_SET_DOMAIN:
2679 r = strv_extend(&arg_set_domain, optarg);
2680 if (r < 0)
2681 return log_oom();
2682
2683 arg_mode = MODE_SET_LINK;
2684 break;
2685
2686 case ARG_SET_LLMNR:
2687 arg_set_llmnr = optarg;
2688 arg_mode = MODE_SET_LINK;
2689 break;
2690
2691 case ARG_SET_MDNS:
2692 arg_set_mdns = optarg;
2693 arg_mode = MODE_SET_LINK;
2694 break;
2695
2696 case ARG_SET_PRIVATE:
2697 arg_set_dns_over_tls = optarg;
2698 arg_mode = MODE_SET_LINK;
2699 break;
2700
2701 case ARG_SET_DNSSEC:
2702 arg_set_dnssec = optarg;
2703 arg_mode = MODE_SET_LINK;
2704 break;
2705
2706 case ARG_SET_NTA:
2707 r = strv_extend(&arg_set_nta, optarg);
2708 if (r < 0)
2709 return log_oom();
2710
2711 arg_mode = MODE_SET_LINK;
2712 break;
2713
2714 case ARG_REVERT_LINK:
2715 arg_mode = MODE_REVERT_LINK;
2716 break;
2717
2718 case '?':
2719 return -EINVAL;
2720
2721 default:
2722 assert_not_reached("Unhandled option");
2723 }
2724
2725 if (arg_type == 0 && arg_class != 0)
2726 return log_error_errno(SYNTHETIC_ERRNO(EINVAL),
2727 "--class= may only be used in conjunction with --type=.");
2728
2729 if (arg_type != 0 && arg_mode == MODE_RESOLVE_SERVICE)
2730 return log_error_errno(SYNTHETIC_ERRNO(EINVAL),
2731 "--service and --type= may not be combined.");
2732
2733 if (arg_type != 0 && arg_class == 0)
2734 arg_class = DNS_CLASS_IN;
2735
2736 if (arg_class != 0 && arg_type == 0)
2737 arg_type = DNS_TYPE_A;
2738
2739 if (IN_SET(arg_mode, MODE_SET_LINK, MODE_REVERT_LINK)) {
2740
2741 if (arg_ifindex <= 0)
2742 return log_error_errno(SYNTHETIC_ERRNO(EINVAL),
2743 "--set-dns=, --set-domain=, --set-llmnr=, --set-mdns=, --set-dnsovertls=, --set-dnssec=, --set-nta= and --revert require --interface=.");
2744 }
2745
2746 return 1 /* work to do */;
2747 }
2748
2749 static int native_parse_argv(int argc, char *argv[]) {
2750 enum {
2751 ARG_VERSION = 0x100,
2752 ARG_LEGEND,
2753 ARG_CNAME,
2754 ARG_SERVICE_ADDRESS,
2755 ARG_SERVICE_TXT,
2756 ARG_RAW,
2757 ARG_SEARCH,
2758 ARG_NO_PAGER,
2759 };
2760
2761 static const struct option options[] = {
2762 { "help", no_argument, NULL, 'h' },
2763 { "version", no_argument, NULL, ARG_VERSION },
2764 { "type", required_argument, NULL, 't' },
2765 { "class", required_argument, NULL, 'c' },
2766 { "legend", required_argument, NULL, ARG_LEGEND },
2767 { "interface", required_argument, NULL, 'i' },
2768 { "protocol", required_argument, NULL, 'p' },
2769 { "cname", required_argument, NULL, ARG_CNAME },
2770 { "service-address", required_argument, NULL, ARG_SERVICE_ADDRESS },
2771 { "service-txt", required_argument, NULL, ARG_SERVICE_TXT },
2772 { "raw", optional_argument, NULL, ARG_RAW },
2773 { "search", required_argument, NULL, ARG_SEARCH },
2774 { "no-pager", no_argument, NULL, ARG_NO_PAGER },
2775 {}
2776 };
2777
2778 int c, r;
2779
2780 assert(argc >= 0);
2781 assert(argv);
2782
2783 while ((c = getopt_long(argc, argv, "h46i:t:c:p:", options, NULL)) >= 0)
2784 switch(c) {
2785
2786 case 'h':
2787 return native_help();
2788
2789 case ARG_VERSION:
2790 return version();
2791
2792 case '4':
2793 arg_family = AF_INET;
2794 break;
2795
2796 case '6':
2797 arg_family = AF_INET6;
2798 break;
2799
2800 case 'i':
2801 r = ifname_mangle(optarg);
2802 if (r < 0)
2803 return r;
2804 break;
2805
2806 case 't':
2807 if (streq(optarg, "help")) {
2808 help_dns_types();
2809 return 0;
2810 }
2811
2812 r = dns_type_from_string(optarg);
2813 if (r < 0) {
2814 log_error("Failed to parse RR record type %s", optarg);
2815 return r;
2816 }
2817 arg_type = (uint16_t) r;
2818 assert((int) arg_type == r);
2819
2820 break;
2821
2822 case 'c':
2823 if (streq(optarg, "help")) {
2824 help_dns_classes();
2825 return 0;
2826 }
2827
2828 r = dns_class_from_string(optarg);
2829 if (r < 0) {
2830 log_error("Failed to parse RR record class %s", optarg);
2831 return r;
2832 }
2833 arg_class = (uint16_t) r;
2834 assert((int) arg_class == r);
2835
2836 break;
2837
2838 case ARG_LEGEND:
2839 r = parse_boolean(optarg);
2840 if (r < 0)
2841 return log_error_errno(r, "Failed to parse --legend= argument");
2842
2843 arg_legend = r;
2844 break;
2845
2846 case 'p':
2847 if (streq(optarg, "help")) {
2848 help_protocol_types();
2849 return 0;
2850 } else if (streq(optarg, "dns"))
2851 arg_flags |= SD_RESOLVED_DNS;
2852 else if (streq(optarg, "llmnr"))
2853 arg_flags |= SD_RESOLVED_LLMNR;
2854 else if (streq(optarg, "llmnr-ipv4"))
2855 arg_flags |= SD_RESOLVED_LLMNR_IPV4;
2856 else if (streq(optarg, "llmnr-ipv6"))
2857 arg_flags |= SD_RESOLVED_LLMNR_IPV6;
2858 else if (streq(optarg, "mdns"))
2859 arg_flags |= SD_RESOLVED_MDNS;
2860 else if (streq(optarg, "mdns-ipv4"))
2861 arg_flags |= SD_RESOLVED_MDNS_IPV4;
2862 else if (streq(optarg, "mdns-ipv6"))
2863 arg_flags |= SD_RESOLVED_MDNS_IPV6;
2864 else
2865 return log_error_errno(SYNTHETIC_ERRNO(EINVAL),
2866 "Unknown protocol specifier: %s",
2867 optarg);
2868
2869 break;
2870
2871 case ARG_RAW:
2872 if (on_tty())
2873 return log_error_errno(SYNTHETIC_ERRNO(ENOTTY),
2874 "Refusing to write binary data to tty.");
2875
2876 if (optarg == NULL || streq(optarg, "payload"))
2877 arg_raw = RAW_PAYLOAD;
2878 else if (streq(optarg, "packet"))
2879 arg_raw = RAW_PACKET;
2880 else
2881 return log_error_errno(SYNTHETIC_ERRNO(EINVAL),
2882 "Unknown --raw specifier \"%s\".",
2883 optarg);
2884
2885 arg_legend = false;
2886 break;
2887
2888 case ARG_CNAME:
2889 r = parse_boolean(optarg);
2890 if (r < 0)
2891 return log_error_errno(r, "Failed to parse --cname= argument.");
2892 SET_FLAG(arg_flags, SD_RESOLVED_NO_CNAME, r == 0);
2893 break;
2894
2895 case ARG_SERVICE_ADDRESS:
2896 r = parse_boolean(optarg);
2897 if (r < 0)
2898 return log_error_errno(r, "Failed to parse --service-address= argument.");
2899 SET_FLAG(arg_flags, SD_RESOLVED_NO_ADDRESS, r == 0);
2900 break;
2901
2902 case ARG_SERVICE_TXT:
2903 r = parse_boolean(optarg);
2904 if (r < 0)
2905 return log_error_errno(r, "Failed to parse --service-txt= argument.");
2906 SET_FLAG(arg_flags, SD_RESOLVED_NO_TXT, r == 0);
2907 break;
2908
2909 case ARG_SEARCH:
2910 r = parse_boolean(optarg);
2911 if (r < 0)
2912 return log_error_errno(r, "Failed to parse --search argument.");
2913 SET_FLAG(arg_flags, SD_RESOLVED_NO_SEARCH, r == 0);
2914 break;
2915
2916 case ARG_NO_PAGER:
2917 arg_pager_flags |= PAGER_DISABLE;
2918 break;
2919
2920 case '?':
2921 return -EINVAL;
2922
2923 default:
2924 assert_not_reached("Unhandled option");
2925 }
2926
2927 if (arg_type == 0 && arg_class != 0)
2928 return log_error_errno(SYNTHETIC_ERRNO(EINVAL),
2929 "--class= may only be used in conjunction with --type=.");
2930
2931 if (arg_type != 0 && arg_class == 0)
2932 arg_class = DNS_CLASS_IN;
2933
2934 if (arg_class != 0 && arg_type == 0)
2935 arg_type = DNS_TYPE_A;
2936
2937 return 1 /* work to do */;
2938 }
2939
2940 static int native_main(int argc, char *argv[], sd_bus *bus) {
2941
2942 static const Verb verbs[] = {
2943 { "help", VERB_ANY, VERB_ANY, 0, verb_help },
2944 { "status", VERB_ANY, VERB_ANY, VERB_DEFAULT, verb_status },
2945 { "query", 2, VERB_ANY, 0, verb_query },
2946 { "service", 2, 4, 0, verb_service },
2947 { "openpgp", 2, VERB_ANY, 0, verb_openpgp },
2948 { "tlsa", 2, VERB_ANY, 0, verb_tlsa },
2949 { "statistics", VERB_ANY, 1, 0, show_statistics },
2950 { "reset-statistics", VERB_ANY, 1, 0, reset_statistics },
2951 { "flush-caches", VERB_ANY, 1, 0, flush_caches },
2952 { "reset-server-features", VERB_ANY, 1, 0, reset_server_features },
2953 { "dns", VERB_ANY, VERB_ANY, 0, verb_dns },
2954 { "domain", VERB_ANY, VERB_ANY, 0, verb_domain },
2955 { "llmnr", VERB_ANY, 3, 0, verb_llmnr },
2956 { "mdns", VERB_ANY, 3, 0, verb_mdns },
2957 { "dnsovertls", VERB_ANY, 3, 0, verb_dns_over_tls },
2958 { "dnssec", VERB_ANY, 3, 0, verb_dnssec },
2959 { "nta", VERB_ANY, VERB_ANY, 0, verb_nta },
2960 { "revert", VERB_ANY, 2, 0, verb_revert_link },
2961 {}
2962 };
2963
2964 return dispatch_verb(argc, argv, verbs, bus);
2965 }
2966
2967 static int translate(const char *verb, const char *single_arg, size_t num_args, char **args, sd_bus *bus) {
2968 char **fake, **p;
2969 size_t num, i;
2970
2971 assert(verb);
2972 assert(num_args == 0 || args);
2973
2974 num = !!single_arg + num_args + 1;
2975
2976 p = fake = newa0(char *, num + 1);
2977 *p++ = (char *) verb;
2978 if (single_arg)
2979 *p++ = (char *) single_arg;
2980 for (i = 0; i < num_args; i++)
2981 *p++ = args[i];
2982
2983 optind = 0;
2984 return native_main((int) num, fake, bus);
2985 }
2986
2987 static int compat_main(int argc, char *argv[], sd_bus *bus) {
2988 int r = 0;
2989
2990 switch (arg_mode) {
2991 case MODE_RESOLVE_HOST:
2992 case MODE_RESOLVE_RECORD:
2993 return translate("query", NULL, argc - optind, argv + optind, bus);
2994
2995 case MODE_RESOLVE_SERVICE:
2996 return translate("service", NULL, argc - optind, argv + optind, bus);
2997
2998 case MODE_RESOLVE_OPENPGP:
2999 return translate("openpgp", NULL, argc - optind, argv + optind, bus);
3000
3001 case MODE_RESOLVE_TLSA:
3002 return translate("tlsa", arg_service_family, argc - optind, argv + optind, bus);
3003
3004 case MODE_STATISTICS:
3005 return translate("statistics", NULL, 0, NULL, bus);
3006
3007 case MODE_RESET_STATISTICS:
3008 return translate("reset-statistics", NULL, 0, NULL, bus);
3009
3010 case MODE_FLUSH_CACHES:
3011 return translate("flush-caches", NULL, 0, NULL, bus);
3012
3013 case MODE_RESET_SERVER_FEATURES:
3014 return translate("reset-server-features", NULL, 0, NULL, bus);
3015
3016 case MODE_STATUS:
3017 return translate("status", NULL, argc - optind, argv + optind, bus);
3018
3019 case MODE_SET_LINK:
3020 assert(arg_ifname);
3021
3022 if (arg_set_dns) {
3023 r = translate("dns", arg_ifname, strv_length(arg_set_dns), arg_set_dns, bus);
3024 if (r < 0)
3025 return r;
3026 }
3027
3028 if (arg_set_domain) {
3029 r = translate("domain", arg_ifname, strv_length(arg_set_domain), arg_set_domain, bus);
3030 if (r < 0)
3031 return r;
3032 }
3033
3034 if (arg_set_nta) {
3035 r = translate("nta", arg_ifname, strv_length(arg_set_nta), arg_set_nta, bus);
3036 if (r < 0)
3037 return r;
3038 }
3039
3040 if (arg_set_llmnr) {
3041 r = translate("llmnr", arg_ifname, 1, (char **) &arg_set_llmnr, bus);
3042 if (r < 0)
3043 return r;
3044 }
3045
3046 if (arg_set_mdns) {
3047 r = translate("mdns", arg_ifname, 1, (char **) &arg_set_mdns, bus);
3048 if (r < 0)
3049 return r;
3050 }
3051
3052 if (arg_set_dns_over_tls) {
3053 r = translate("dnsovertls", arg_ifname, 1, (char **) &arg_set_dns_over_tls, bus);
3054 if (r < 0)
3055 return r;
3056 }
3057
3058 if (arg_set_dnssec) {
3059 r = translate("dnssec", arg_ifname, 1, (char **) &arg_set_dnssec, bus);
3060 if (r < 0)
3061 return r;
3062 }
3063
3064 return r;
3065
3066 case MODE_REVERT_LINK:
3067 assert(arg_ifname);
3068
3069 return translate("revert", arg_ifname, 0, NULL, bus);
3070
3071 case _MODE_INVALID:
3072 assert_not_reached("invalid mode");
3073 }
3074
3075 return 0;
3076 }
3077
3078 static int run(int argc, char **argv) {
3079 _cleanup_(sd_bus_flush_close_unrefp) sd_bus *bus = NULL;
3080 int r;
3081
3082 setlocale(LC_ALL, "");
3083 log_parse_environment();
3084 log_open();
3085
3086 if (streq(program_invocation_short_name, "resolvconf"))
3087 r = resolvconf_parse_argv(argc, argv);
3088 else if (streq(program_invocation_short_name, "systemd-resolve"))
3089 r = compat_parse_argv(argc, argv);
3090 else
3091 r = native_parse_argv(argc, argv);
3092 if (r <= 0)
3093 return r;
3094
3095 r = sd_bus_open_system(&bus);
3096 if (r < 0)
3097 return log_error_errno(r, "sd_bus_open_system: %m");
3098
3099 if (STR_IN_SET(program_invocation_short_name, "systemd-resolve", "resolvconf"))
3100 return compat_main(argc, argv, bus);
3101
3102 return native_main(argc, argv, bus);
3103 }
3104
3105 DEFINE_MAIN_FUNCTION(run);
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