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Merge pull request #11056 from poettering/resolved-ifindex
[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_network.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 printf("\n%s-- Information acquired via", ansi_grey());
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.%s\n"
153 "%s-- Data is authenticated: %s%s\n",
154 rtt_str, ansi_normal(),
155 ansi_grey(), yes_no(flags & SD_RESOLVED_AUTHENTICATED), ansi_normal());
156 }
157
158 static void print_ifindex_comment(int printed_so_far, int ifindex) {
159 char ifname[IF_NAMESIZE];
160
161 if (ifindex <= 0)
162 return;
163
164 if (!if_indextoname(ifindex, ifname))
165 log_warning_errno(errno, "Failed to resolve interface name for index %i, ignoring: %m", ifindex);
166 else
167 printf("%*s%s-- link: %s%s",
168 60 > printed_so_far ? 60 - printed_so_far : 0, " ", /* Align comment to the 60th column */
169 ansi_grey(), ifname, ansi_normal());
170 }
171
172 static int resolve_host(sd_bus *bus, const char *name) {
173 _cleanup_(sd_bus_message_unrefp) sd_bus_message *req = NULL, *reply = NULL;
174 _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
175 const char *canonical = NULL;
176 unsigned c = 0;
177 uint64_t flags;
178 usec_t ts;
179 int r;
180
181 assert(name);
182
183 log_debug("Resolving %s (family %s, interface %s).", name, af_to_name(arg_family) ?: "*", isempty(arg_ifname) ? "*" : arg_ifname);
184
185 r = sd_bus_message_new_method_call(
186 bus,
187 &req,
188 "org.freedesktop.resolve1",
189 "/org/freedesktop/resolve1",
190 "org.freedesktop.resolve1.Manager",
191 "ResolveHostname");
192 if (r < 0)
193 return bus_log_create_error(r);
194
195 r = sd_bus_message_append(req, "isit", arg_ifindex, name, arg_family, arg_flags);
196 if (r < 0)
197 return bus_log_create_error(r);
198
199 ts = now(CLOCK_MONOTONIC);
200
201 r = sd_bus_call(bus, req, SD_RESOLVED_QUERY_TIMEOUT_USEC, &error, &reply);
202 if (r < 0)
203 return log_error_errno(r, "%s: resolve call failed: %s", name, bus_error_message(&error, r));
204
205 ts = now(CLOCK_MONOTONIC) - ts;
206
207 r = sd_bus_message_enter_container(reply, 'a', "(iiay)");
208 if (r < 0)
209 return bus_log_parse_error(r);
210
211 while ((r = sd_bus_message_enter_container(reply, 'r', "iiay")) > 0) {
212 _cleanup_free_ char *pretty = NULL;
213 int ifindex, family, k;
214 const void *a;
215 size_t sz;
216
217 assert_cc(sizeof(int) == sizeof(int32_t));
218
219 r = sd_bus_message_read(reply, "ii", &ifindex, &family);
220 if (r < 0)
221 return bus_log_parse_error(r);
222
223 r = sd_bus_message_read_array(reply, 'y', &a, &sz);
224 if (r < 0)
225 return bus_log_parse_error(r);
226
227 r = sd_bus_message_exit_container(reply);
228 if (r < 0)
229 return bus_log_parse_error(r);
230
231 if (!IN_SET(family, AF_INET, AF_INET6)) {
232 log_debug("%s: skipping entry with family %d (%s)", name, family, af_to_name(family) ?: "unknown");
233 continue;
234 }
235
236 if (sz != FAMILY_ADDRESS_SIZE(family)) {
237 log_error("%s: systemd-resolved returned address of invalid size %zu for family %s", name, sz, af_to_name(family) ?: "unknown");
238 return -EINVAL;
239 }
240
241 r = in_addr_ifindex_to_string(family, a, ifindex, &pretty);
242 if (r < 0)
243 return log_error_errno(r, "Failed to print address for %s: %m", name);
244
245 k = printf("%*s%s %s%s%s",
246 (int) strlen(name), c == 0 ? name : "", c == 0 ? ":" : " ",
247 ansi_highlight(), pretty, ansi_normal());
248
249 print_ifindex_comment(k, ifindex);
250 fputc('\n', stdout);
251
252 c++;
253 }
254 if (r < 0)
255 return bus_log_parse_error(r);
256
257 r = sd_bus_message_exit_container(reply);
258 if (r < 0)
259 return bus_log_parse_error(r);
260
261 r = sd_bus_message_read(reply, "st", &canonical, &flags);
262 if (r < 0)
263 return bus_log_parse_error(r);
264
265 if (!streq(name, canonical))
266 printf("%*s%s (%s)\n",
267 (int) strlen(name), c == 0 ? name : "", c == 0 ? ":" : " ",
268 canonical);
269
270 if (c == 0) {
271 log_error("%s: no addresses found", name);
272 return -ESRCH;
273 }
274
275 print_source(flags, ts);
276
277 return 0;
278 }
279
280 static int resolve_address(sd_bus *bus, int family, const union in_addr_union *address, int ifindex) {
281 _cleanup_(sd_bus_message_unrefp) sd_bus_message *req = NULL, *reply = NULL;
282 _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
283 _cleanup_free_ char *pretty = NULL;
284 uint64_t flags;
285 unsigned c = 0;
286 usec_t ts;
287 int r;
288
289 assert(bus);
290 assert(IN_SET(family, AF_INET, AF_INET6));
291 assert(address);
292
293 if (ifindex <= 0)
294 ifindex = arg_ifindex;
295
296 r = in_addr_ifindex_to_string(family, address, ifindex, &pretty);
297 if (r < 0)
298 return log_oom();
299
300 log_debug("Resolving %s.", pretty);
301
302 r = sd_bus_message_new_method_call(
303 bus,
304 &req,
305 "org.freedesktop.resolve1",
306 "/org/freedesktop/resolve1",
307 "org.freedesktop.resolve1.Manager",
308 "ResolveAddress");
309 if (r < 0)
310 return bus_log_create_error(r);
311
312 r = sd_bus_message_append(req, "ii", ifindex, family);
313 if (r < 0)
314 return bus_log_create_error(r);
315
316 r = sd_bus_message_append_array(req, 'y', address, FAMILY_ADDRESS_SIZE(family));
317 if (r < 0)
318 return bus_log_create_error(r);
319
320 r = sd_bus_message_append(req, "t", arg_flags);
321 if (r < 0)
322 return bus_log_create_error(r);
323
324 ts = now(CLOCK_MONOTONIC);
325
326 r = sd_bus_call(bus, req, SD_RESOLVED_QUERY_TIMEOUT_USEC, &error, &reply);
327 if (r < 0)
328 return log_error_errno(r, "%s: resolve call failed: %s", pretty, bus_error_message(&error, r));
329
330 ts = now(CLOCK_MONOTONIC) - ts;
331
332 r = sd_bus_message_enter_container(reply, 'a', "(is)");
333 if (r < 0)
334 return bus_log_create_error(r);
335
336 while ((r = sd_bus_message_enter_container(reply, 'r', "is")) > 0) {
337 const char *n;
338 int k;
339
340 assert_cc(sizeof(int) == sizeof(int32_t));
341
342 r = sd_bus_message_read(reply, "is", &ifindex, &n);
343 if (r < 0)
344 return r;
345
346 r = sd_bus_message_exit_container(reply);
347 if (r < 0)
348 return r;
349
350 k = printf("%*s%s %s%s%s",
351 (int) strlen(pretty), c == 0 ? pretty : "",
352 c == 0 ? ":" : " ",
353 ansi_highlight(), n, ansi_normal());
354
355 print_ifindex_comment(k, ifindex);
356 fputc('\n', stdout);
357
358 c++;
359 }
360 if (r < 0)
361 return bus_log_parse_error(r);
362
363 r = sd_bus_message_exit_container(reply);
364 if (r < 0)
365 return bus_log_parse_error(r);
366
367 r = sd_bus_message_read(reply, "t", &flags);
368 if (r < 0)
369 return bus_log_parse_error(r);
370
371 if (c == 0) {
372 log_error("%s: no names found", pretty);
373 return -ESRCH;
374 }
375
376 print_source(flags, ts);
377
378 return 0;
379 }
380
381 static int output_rr_packet(const void *d, size_t l, int ifindex) {
382 _cleanup_(dns_resource_record_unrefp) DnsResourceRecord *rr = NULL;
383 _cleanup_(dns_packet_unrefp) DnsPacket *p = NULL;
384 int r;
385
386 r = dns_packet_new(&p, DNS_PROTOCOL_DNS, 0, DNS_PACKET_SIZE_MAX);
387 if (r < 0)
388 return log_oom();
389
390 p->refuse_compression = true;
391
392 r = dns_packet_append_blob(p, d, l, NULL);
393 if (r < 0)
394 return log_oom();
395
396 r = dns_packet_read_rr(p, &rr, NULL, NULL);
397 if (r < 0)
398 return log_error_errno(r, "Failed to parse RR: %m");
399
400 if (arg_raw == RAW_PAYLOAD) {
401 void *data;
402 ssize_t k;
403
404 k = dns_resource_record_payload(rr, &data);
405 if (k < 0)
406 return log_error_errno(k, "Cannot dump RR: %m");
407 fwrite(data, 1, k, stdout);
408 } else {
409 const char *s;
410 int k;
411
412 s = dns_resource_record_to_string(rr);
413 if (!s)
414 return log_oom();
415
416 k = printf("%s", s);
417 print_ifindex_comment(k, ifindex);
418 fputc('\n', stdout);
419 }
420
421 return 0;
422 }
423
424 static int resolve_record(sd_bus *bus, const char *name, uint16_t class, uint16_t type, bool warn_missing) {
425 _cleanup_(sd_bus_message_unrefp) sd_bus_message *req = NULL, *reply = NULL;
426 _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
427 unsigned n = 0;
428 uint64_t flags;
429 int r;
430 usec_t ts;
431 bool needs_authentication = false;
432
433 assert(name);
434
435 log_debug("Resolving %s %s %s (interface %s).", name, dns_class_to_string(class), dns_type_to_string(type), isempty(arg_ifname) ? "*" : arg_ifname);
436
437 r = sd_bus_message_new_method_call(
438 bus,
439 &req,
440 "org.freedesktop.resolve1",
441 "/org/freedesktop/resolve1",
442 "org.freedesktop.resolve1.Manager",
443 "ResolveRecord");
444 if (r < 0)
445 return bus_log_create_error(r);
446
447 r = sd_bus_message_append(req, "isqqt", arg_ifindex, name, class, type, arg_flags);
448 if (r < 0)
449 return bus_log_create_error(r);
450
451 ts = now(CLOCK_MONOTONIC);
452
453 r = sd_bus_call(bus, req, SD_RESOLVED_QUERY_TIMEOUT_USEC, &error, &reply);
454 if (r < 0) {
455 if (warn_missing || r != -ENXIO)
456 log_error("%s: resolve call failed: %s", name, bus_error_message(&error, r));
457 return r;
458 }
459
460 ts = now(CLOCK_MONOTONIC) - ts;
461
462 r = sd_bus_message_enter_container(reply, 'a', "(iqqay)");
463 if (r < 0)
464 return bus_log_parse_error(r);
465
466 while ((r = sd_bus_message_enter_container(reply, 'r', "iqqay")) > 0) {
467 uint16_t c, t;
468 int ifindex;
469 const void *d;
470 size_t l;
471
472 assert_cc(sizeof(int) == sizeof(int32_t));
473
474 r = sd_bus_message_read(reply, "iqq", &ifindex, &c, &t);
475 if (r < 0)
476 return bus_log_parse_error(r);
477
478 r = sd_bus_message_read_array(reply, 'y', &d, &l);
479 if (r < 0)
480 return bus_log_parse_error(r);
481
482 r = sd_bus_message_exit_container(reply);
483 if (r < 0)
484 return bus_log_parse_error(r);
485
486 if (arg_raw == RAW_PACKET) {
487 uint64_t u64 = htole64(l);
488
489 fwrite(&u64, sizeof(u64), 1, stdout);
490 fwrite(d, 1, l, stdout);
491 } else {
492 r = output_rr_packet(d, l, ifindex);
493 if (r < 0)
494 return r;
495 }
496
497 if (dns_type_needs_authentication(t))
498 needs_authentication = true;
499
500 n++;
501 }
502 if (r < 0)
503 return bus_log_parse_error(r);
504
505 r = sd_bus_message_exit_container(reply);
506 if (r < 0)
507 return bus_log_parse_error(r);
508
509 r = sd_bus_message_read(reply, "t", &flags);
510 if (r < 0)
511 return bus_log_parse_error(r);
512
513 if (n == 0) {
514 if (warn_missing)
515 log_error("%s: no records found", name);
516 return -ESRCH;
517 }
518
519 print_source(flags, ts);
520
521 if ((flags & SD_RESOLVED_AUTHENTICATED) == 0 && needs_authentication) {
522 fflush(stdout);
523
524 fprintf(stderr, "\n%s"
525 "WARNING: The resources shown contain cryptographic key data which could not be\n"
526 " authenticated. It is not suitable to authenticate any communication.\n"
527 " This is usually indication that DNSSEC authentication was not enabled\n"
528 " or is not available for the selected protocol or DNS servers.%s\n",
529 ansi_highlight_red(),
530 ansi_normal());
531 }
532
533 return 0;
534 }
535
536 static int resolve_rfc4501(sd_bus *bus, const char *name) {
537 uint16_t type = 0, class = 0;
538 const char *p, *q, *n;
539 int r;
540
541 assert(bus);
542 assert(name);
543 assert(startswith(name, "dns:"));
544
545 /* Parse RFC 4501 dns: URIs */
546
547 p = name + 4;
548
549 if (p[0] == '/') {
550 const char *e;
551
552 if (p[1] != '/')
553 goto invalid;
554
555 e = strchr(p + 2, '/');
556 if (!e)
557 goto invalid;
558
559 if (e != p + 2)
560 log_warning("DNS authority specification not supported; ignoring specified authority.");
561
562 p = e + 1;
563 }
564
565 q = strchr(p, '?');
566 if (q) {
567 n = strndupa(p, q - p);
568 q++;
569
570 for (;;) {
571 const char *f;
572
573 f = startswith_no_case(q, "class=");
574 if (f) {
575 _cleanup_free_ char *t = NULL;
576 const char *e;
577
578 if (class != 0)
579 return log_error_errno(SYNTHETIC_ERRNO(EINVAL),
580 "DNS class specified twice.");
581
582 e = strchrnul(f, ';');
583 t = strndup(f, e - f);
584 if (!t)
585 return log_oom();
586
587 r = dns_class_from_string(t);
588 if (r < 0)
589 return log_error_errno(SYNTHETIC_ERRNO(EINVAL),
590 "Unknown DNS class %s.", t);
591
592 class = r;
593
594 if (*e == ';') {
595 q = e + 1;
596 continue;
597 }
598
599 break;
600 }
601
602 f = startswith_no_case(q, "type=");
603 if (f) {
604 _cleanup_free_ char *t = NULL;
605 const char *e;
606
607 if (type != 0)
608 return log_error_errno(SYNTHETIC_ERRNO(EINVAL),
609 "DNS type specified twice.");
610
611 e = strchrnul(f, ';');
612 t = strndup(f, e - f);
613 if (!t)
614 return log_oom();
615
616 r = dns_type_from_string(t);
617 if (r < 0)
618 return log_error_errno(SYNTHETIC_ERRNO(EINVAL),
619 "Unknown DNS type %s.", t);
620
621 type = r;
622
623 if (*e == ';') {
624 q = e + 1;
625 continue;
626 }
627
628 break;
629 }
630
631 goto invalid;
632 }
633 } else
634 n = p;
635
636 if (class == 0)
637 class = arg_class ?: DNS_CLASS_IN;
638 if (type == 0)
639 type = arg_type ?: DNS_TYPE_A;
640
641 return resolve_record(bus, n, class, type, true);
642
643 invalid:
644 return log_error_errno(SYNTHETIC_ERRNO(EINVAL),
645 "Invalid DNS URI: %s", name);
646 }
647
648 static int verb_query(int argc, char **argv, void *userdata) {
649 sd_bus *bus = userdata;
650 char **p;
651 int q, r = 0;
652
653 if (arg_type != 0)
654 STRV_FOREACH(p, argv + 1) {
655 q = resolve_record(bus, *p, arg_class, arg_type, true);
656 if (q < 0)
657 r = q;
658 }
659
660 else
661 STRV_FOREACH(p, argv + 1) {
662 if (startswith(*p, "dns:"))
663 q = resolve_rfc4501(bus, *p);
664 else {
665 int family, ifindex;
666 union in_addr_union a;
667
668 q = in_addr_ifindex_from_string_auto(*p, &family, &a, &ifindex);
669 if (q >= 0)
670 q = resolve_address(bus, family, &a, ifindex);
671 else
672 q = resolve_host(bus, *p);
673 }
674 if (q < 0)
675 r = q;
676 }
677
678 return r;
679 }
680
681 static int resolve_service(sd_bus *bus, const char *name, const char *type, const char *domain) {
682 const char *canonical_name, *canonical_type, *canonical_domain;
683 _cleanup_(sd_bus_message_unrefp) sd_bus_message *req = NULL, *reply = NULL;
684 _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
685 size_t indent, sz;
686 uint64_t flags;
687 const char *p;
688 unsigned c;
689 usec_t ts;
690 int r;
691
692 assert(bus);
693 assert(domain);
694
695 name = empty_to_null(name);
696 type = empty_to_null(type);
697
698 if (name)
699 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);
700 else if (type)
701 log_debug("Resolving service type %s of %s (family %s, interface %s).", type, domain, af_to_name(arg_family) ?: "*", isempty(arg_ifname) ? "*" : arg_ifname);
702 else
703 log_debug("Resolving service type %s (family %s, interface %s).", domain, af_to_name(arg_family) ?: "*", isempty(arg_ifname) ? "*" : arg_ifname);
704
705 r = sd_bus_message_new_method_call(
706 bus,
707 &req,
708 "org.freedesktop.resolve1",
709 "/org/freedesktop/resolve1",
710 "org.freedesktop.resolve1.Manager",
711 "ResolveService");
712 if (r < 0)
713 return bus_log_create_error(r);
714
715 r = sd_bus_message_append(req, "isssit", arg_ifindex, name, type, domain, arg_family, arg_flags);
716 if (r < 0)
717 return bus_log_create_error(r);
718
719 ts = now(CLOCK_MONOTONIC);
720
721 r = sd_bus_call(bus, req, SD_RESOLVED_QUERY_TIMEOUT_USEC, &error, &reply);
722 if (r < 0)
723 return log_error_errno(r, "Resolve call failed: %s", bus_error_message(&error, r));
724
725 ts = now(CLOCK_MONOTONIC) - ts;
726
727 r = sd_bus_message_enter_container(reply, 'a', "(qqqsa(iiay)s)");
728 if (r < 0)
729 return bus_log_parse_error(r);
730
731 indent =
732 (name ? strlen(name) + 1 : 0) +
733 (type ? strlen(type) + 1 : 0) +
734 strlen(domain) + 2;
735
736 c = 0;
737 while ((r = sd_bus_message_enter_container(reply, 'r', "qqqsa(iiay)s")) > 0) {
738 uint16_t priority, weight, port;
739 const char *hostname, *canonical;
740
741 r = sd_bus_message_read(reply, "qqqs", &priority, &weight, &port, &hostname);
742 if (r < 0)
743 return bus_log_parse_error(r);
744
745 if (name)
746 printf("%*s%s", (int) strlen(name), c == 0 ? name : "", c == 0 ? "/" : " ");
747 if (type)
748 printf("%*s%s", (int) strlen(type), c == 0 ? type : "", c == 0 ? "/" : " ");
749
750 printf("%*s%s %s:%u [priority=%u, weight=%u]\n",
751 (int) strlen(domain), c == 0 ? domain : "",
752 c == 0 ? ":" : " ",
753 hostname, port,
754 priority, weight);
755
756 r = sd_bus_message_enter_container(reply, 'a', "(iiay)");
757 if (r < 0)
758 return bus_log_parse_error(r);
759
760 while ((r = sd_bus_message_enter_container(reply, 'r', "iiay")) > 0) {
761 _cleanup_free_ char *pretty = NULL;
762 int ifindex, family, k;
763 const void *a;
764
765 assert_cc(sizeof(int) == sizeof(int32_t));
766
767 r = sd_bus_message_read(reply, "ii", &ifindex, &family);
768 if (r < 0)
769 return bus_log_parse_error(r);
770
771 r = sd_bus_message_read_array(reply, 'y', &a, &sz);
772 if (r < 0)
773 return bus_log_parse_error(r);
774
775 r = sd_bus_message_exit_container(reply);
776 if (r < 0)
777 return bus_log_parse_error(r);
778
779 if (!IN_SET(family, AF_INET, AF_INET6)) {
780 log_debug("%s: skipping entry with family %d (%s)", name, family, af_to_name(family) ?: "unknown");
781 continue;
782 }
783
784 if (sz != FAMILY_ADDRESS_SIZE(family)) {
785 log_error("%s: systemd-resolved returned address of invalid size %zu for family %s", name, sz, af_to_name(family) ?: "unknown");
786 return -EINVAL;
787 }
788
789 r = in_addr_ifindex_to_string(family, a, ifindex, &pretty);
790 if (r < 0)
791 return log_error_errno(r, "Failed to print address for %s: %m", name);
792
793 k = printf("%*s%s", (int) indent, "", pretty);
794 print_ifindex_comment(k, ifindex);
795 fputc('\n', stdout);
796 }
797 if (r < 0)
798 return bus_log_parse_error(r);
799
800 r = sd_bus_message_exit_container(reply);
801 if (r < 0)
802 return bus_log_parse_error(r);
803
804 r = sd_bus_message_read(reply, "s", &canonical);
805 if (r < 0)
806 return bus_log_parse_error(r);
807
808 if (!streq(hostname, canonical))
809 printf("%*s(%s)\n", (int) indent, "", canonical);
810
811 r = sd_bus_message_exit_container(reply);
812 if (r < 0)
813 return bus_log_parse_error(r);
814
815 c++;
816 }
817 if (r < 0)
818 return bus_log_parse_error(r);
819
820 r = sd_bus_message_exit_container(reply);
821 if (r < 0)
822 return bus_log_parse_error(r);
823
824 r = sd_bus_message_enter_container(reply, 'a', "ay");
825 if (r < 0)
826 return bus_log_parse_error(r);
827
828 while ((r = sd_bus_message_read_array(reply, 'y', (const void**) &p, &sz)) > 0) {
829 _cleanup_free_ char *escaped = NULL;
830
831 escaped = cescape_length(p, sz);
832 if (!escaped)
833 return log_oom();
834
835 printf("%*s%s\n", (int) indent, "", escaped);
836 }
837 if (r < 0)
838 return bus_log_parse_error(r);
839
840 r = sd_bus_message_exit_container(reply);
841 if (r < 0)
842 return bus_log_parse_error(r);
843
844 r = sd_bus_message_read(reply, "ssst", &canonical_name, &canonical_type, &canonical_domain, &flags);
845 if (r < 0)
846 return bus_log_parse_error(r);
847
848 canonical_name = empty_to_null(canonical_name);
849 canonical_type = empty_to_null(canonical_type);
850
851 if (!streq_ptr(name, canonical_name) ||
852 !streq_ptr(type, canonical_type) ||
853 !streq_ptr(domain, canonical_domain)) {
854
855 printf("%*s(", (int) indent, "");
856
857 if (canonical_name)
858 printf("%s/", canonical_name);
859 if (canonical_type)
860 printf("%s/", canonical_type);
861
862 printf("%s)\n", canonical_domain);
863 }
864
865 print_source(flags, ts);
866
867 return 0;
868 }
869
870 static int verb_service(int argc, char **argv, void *userdata) {
871 sd_bus *bus = userdata;
872
873 if (argc == 2)
874 return resolve_service(bus, NULL, NULL, argv[1]);
875 else if (argc == 3)
876 return resolve_service(bus, NULL, argv[1], argv[2]);
877 else
878 return resolve_service(bus, argv[1], argv[2], argv[3]);
879 }
880
881 static int resolve_openpgp(sd_bus *bus, const char *address) {
882 const char *domain, *full;
883 int r;
884 _cleanup_free_ char *hashed = NULL;
885
886 assert(bus);
887 assert(address);
888
889 domain = strrchr(address, '@');
890 if (!domain)
891 return log_error_errno(SYNTHETIC_ERRNO(EINVAL),
892 "Address does not contain '@': \"%s\"", address);
893 if (domain == address || domain[1] == '\0')
894 return log_error_errno(SYNTHETIC_ERRNO(EINVAL),
895 "Address starts or ends with '@': \"%s\"", address);
896 domain++;
897
898 r = string_hashsum_sha256(address, domain - 1 - address, &hashed);
899 if (r < 0)
900 return log_error_errno(r, "Hashing failed: %m");
901
902 strshorten(hashed, 56);
903
904 full = strjoina(hashed, "._openpgpkey.", domain);
905 log_debug("Looking up \"%s\".", full);
906
907 r = resolve_record(bus, full,
908 arg_class ?: DNS_CLASS_IN,
909 arg_type ?: DNS_TYPE_OPENPGPKEY, false);
910
911 if (IN_SET(r, -ENXIO, -ESRCH)) { /* NXDOMAIN or NODATA? */
912 hashed = mfree(hashed);
913 r = string_hashsum_sha224(address, domain - 1 - address, &hashed);
914 if (r < 0)
915 return log_error_errno(r, "Hashing failed: %m");
916
917 full = strjoina(hashed, "._openpgpkey.", domain);
918 log_debug("Looking up \"%s\".", full);
919
920 return resolve_record(bus, full,
921 arg_class ?: DNS_CLASS_IN,
922 arg_type ?: DNS_TYPE_OPENPGPKEY, true);
923 }
924
925 return r;
926 }
927
928 static int verb_openpgp(int argc, char **argv, void *userdata) {
929 sd_bus *bus = userdata;
930 char **p;
931 int q, r = 0;
932
933 STRV_FOREACH(p, argv + 1) {
934 q = resolve_openpgp(bus, *p);
935 if (q < 0)
936 r = q;
937 }
938
939 return r;
940 }
941
942 static int resolve_tlsa(sd_bus *bus, const char *family, const char *address) {
943 const char *port;
944 uint16_t port_num = 443;
945 _cleanup_free_ char *full = NULL;
946 int r;
947
948 assert(bus);
949 assert(address);
950
951 port = strrchr(address, ':');
952 if (port) {
953 r = parse_ip_port(port + 1, &port_num);
954 if (r < 0)
955 return log_error_errno(r, "Invalid port \"%s\".", port + 1);
956
957 address = strndupa(address, port - address);
958 }
959
960 r = asprintf(&full, "_%u._%s.%s",
961 port_num,
962 family,
963 address);
964 if (r < 0)
965 return log_oom();
966
967 log_debug("Looking up \"%s\".", full);
968
969 return resolve_record(bus, full,
970 arg_class ?: DNS_CLASS_IN,
971 arg_type ?: DNS_TYPE_TLSA, true);
972 }
973
974 static bool service_family_is_valid(const char *s) {
975 return STR_IN_SET(s, "tcp", "udp", "sctp");
976 }
977
978 static int verb_tlsa(int argc, char **argv, void *userdata) {
979 sd_bus *bus = userdata;
980 char **p, **args = argv + 1;
981 const char *family = "tcp";
982 int q, r = 0;
983
984 if (service_family_is_valid(argv[1])) {
985 family = argv[1];
986 args++;
987 }
988
989 STRV_FOREACH(p, args) {
990 q = resolve_tlsa(bus, family, *p);
991 if (q < 0)
992 r = q;
993 }
994
995 return r;
996 }
997
998 static int show_statistics(int argc, char **argv, void *userdata) {
999 _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
1000 _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL;
1001 sd_bus *bus = userdata;
1002 uint64_t n_current_transactions, n_total_transactions,
1003 cache_size, n_cache_hit, n_cache_miss,
1004 n_dnssec_secure, n_dnssec_insecure, n_dnssec_bogus, n_dnssec_indeterminate;
1005 int r, dnssec_supported;
1006
1007 assert(bus);
1008
1009 r = sd_bus_get_property_trivial(bus,
1010 "org.freedesktop.resolve1",
1011 "/org/freedesktop/resolve1",
1012 "org.freedesktop.resolve1.Manager",
1013 "DNSSECSupported",
1014 &error,
1015 'b',
1016 &dnssec_supported);
1017 if (r < 0)
1018 return log_error_errno(r, "Failed to get DNSSEC supported state: %s", bus_error_message(&error, r));
1019
1020 printf("DNSSEC supported by current servers: %s%s%s\n\n",
1021 ansi_highlight(),
1022 yes_no(dnssec_supported),
1023 ansi_normal());
1024
1025 r = sd_bus_get_property(bus,
1026 "org.freedesktop.resolve1",
1027 "/org/freedesktop/resolve1",
1028 "org.freedesktop.resolve1.Manager",
1029 "TransactionStatistics",
1030 &error,
1031 &reply,
1032 "(tt)");
1033 if (r < 0)
1034 return log_error_errno(r, "Failed to get transaction statistics: %s", bus_error_message(&error, r));
1035
1036 r = sd_bus_message_read(reply, "(tt)",
1037 &n_current_transactions,
1038 &n_total_transactions);
1039 if (r < 0)
1040 return bus_log_parse_error(r);
1041
1042 printf("%sTransactions%s\n"
1043 "Current Transactions: %" PRIu64 "\n"
1044 " Total Transactions: %" PRIu64 "\n",
1045 ansi_highlight(),
1046 ansi_normal(),
1047 n_current_transactions,
1048 n_total_transactions);
1049
1050 reply = sd_bus_message_unref(reply);
1051
1052 r = sd_bus_get_property(bus,
1053 "org.freedesktop.resolve1",
1054 "/org/freedesktop/resolve1",
1055 "org.freedesktop.resolve1.Manager",
1056 "CacheStatistics",
1057 &error,
1058 &reply,
1059 "(ttt)");
1060 if (r < 0)
1061 return log_error_errno(r, "Failed to get cache statistics: %s", bus_error_message(&error, r));
1062
1063 r = sd_bus_message_read(reply, "(ttt)",
1064 &cache_size,
1065 &n_cache_hit,
1066 &n_cache_miss);
1067 if (r < 0)
1068 return bus_log_parse_error(r);
1069
1070 printf("\n%sCache%s\n"
1071 " Current Cache Size: %" PRIu64 "\n"
1072 " Cache Hits: %" PRIu64 "\n"
1073 " Cache Misses: %" PRIu64 "\n",
1074 ansi_highlight(),
1075 ansi_normal(),
1076 cache_size,
1077 n_cache_hit,
1078 n_cache_miss);
1079
1080 reply = sd_bus_message_unref(reply);
1081
1082 r = sd_bus_get_property(bus,
1083 "org.freedesktop.resolve1",
1084 "/org/freedesktop/resolve1",
1085 "org.freedesktop.resolve1.Manager",
1086 "DNSSECStatistics",
1087 &error,
1088 &reply,
1089 "(tttt)");
1090 if (r < 0)
1091 return log_error_errno(r, "Failed to get DNSSEC statistics: %s", bus_error_message(&error, r));
1092
1093 r = sd_bus_message_read(reply, "(tttt)",
1094 &n_dnssec_secure,
1095 &n_dnssec_insecure,
1096 &n_dnssec_bogus,
1097 &n_dnssec_indeterminate);
1098 if (r < 0)
1099 return bus_log_parse_error(r);
1100
1101 printf("\n%sDNSSEC Verdicts%s\n"
1102 " Secure: %" PRIu64 "\n"
1103 " Insecure: %" PRIu64 "\n"
1104 " Bogus: %" PRIu64 "\n"
1105 " Indeterminate: %" PRIu64 "\n",
1106 ansi_highlight(),
1107 ansi_normal(),
1108 n_dnssec_secure,
1109 n_dnssec_insecure,
1110 n_dnssec_bogus,
1111 n_dnssec_indeterminate);
1112
1113 return 0;
1114 }
1115
1116 static int reset_statistics(int argc, char **argv, void *userdata) {
1117 _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
1118 sd_bus *bus = userdata;
1119 int r;
1120
1121 r = sd_bus_call_method(bus,
1122 "org.freedesktop.resolve1",
1123 "/org/freedesktop/resolve1",
1124 "org.freedesktop.resolve1.Manager",
1125 "ResetStatistics",
1126 &error,
1127 NULL,
1128 NULL);
1129 if (r < 0)
1130 return log_error_errno(r, "Failed to reset statistics: %s", bus_error_message(&error, r));
1131
1132 return 0;
1133 }
1134
1135 static int flush_caches(int argc, char **argv, void *userdata) {
1136 _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
1137 sd_bus *bus = userdata;
1138 int r;
1139
1140 r = sd_bus_call_method(bus,
1141 "org.freedesktop.resolve1",
1142 "/org/freedesktop/resolve1",
1143 "org.freedesktop.resolve1.Manager",
1144 "FlushCaches",
1145 &error,
1146 NULL,
1147 NULL);
1148 if (r < 0)
1149 return log_error_errno(r, "Failed to flush caches: %s", bus_error_message(&error, r));
1150
1151 return 0;
1152 }
1153
1154 static int reset_server_features(int argc, char **argv, void *userdata) {
1155 _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
1156 sd_bus *bus = userdata;
1157 int r;
1158
1159 r = sd_bus_call_method(bus,
1160 "org.freedesktop.resolve1",
1161 "/org/freedesktop/resolve1",
1162 "org.freedesktop.resolve1.Manager",
1163 "ResetServerFeatures",
1164 &error,
1165 NULL,
1166 NULL);
1167 if (r < 0)
1168 return log_error_errno(r, "Failed to reset server features: %s", bus_error_message(&error, r));
1169
1170 return 0;
1171 }
1172
1173 static int read_dns_server_one(sd_bus_message *m, bool with_ifindex, char **ret) {
1174 _cleanup_free_ char *pretty = NULL;
1175 int ifindex, family, r;
1176 const void *a;
1177 size_t sz;
1178
1179 assert(m);
1180 assert(ret);
1181
1182 r = sd_bus_message_enter_container(m, 'r', with_ifindex ? "iiay" : "iay");
1183 if (r <= 0)
1184 return r;
1185
1186 if (with_ifindex) {
1187 r = sd_bus_message_read(m, "i", &ifindex);
1188 if (r < 0)
1189 return r;
1190 }
1191
1192 r = sd_bus_message_read(m, "i", &family);
1193 if (r < 0)
1194 return r;
1195
1196 r = sd_bus_message_read_array(m, 'y', &a, &sz);
1197 if (r < 0)
1198 return r;
1199
1200 r = sd_bus_message_exit_container(m);
1201 if (r < 0)
1202 return r;
1203
1204 if (with_ifindex && ifindex != 0) {
1205 /* only show the global ones here */
1206 *ret = NULL;
1207 return 1;
1208 }
1209
1210 if (!IN_SET(family, AF_INET, AF_INET6)) {
1211 log_debug("Unexpected family, ignoring: %i", family);
1212
1213 *ret = NULL;
1214 return 1;
1215 }
1216
1217 if (sz != FAMILY_ADDRESS_SIZE(family)) {
1218 log_debug("Address size mismatch, ignoring.");
1219
1220 *ret = NULL;
1221 return 1;
1222 }
1223
1224 r = in_addr_to_string(family, a, &pretty);
1225 if (r < 0)
1226 return r;
1227
1228 *ret = TAKE_PTR(pretty);
1229
1230 return 1;
1231 }
1232
1233 static int map_link_dns_servers(sd_bus *bus, const char *member, sd_bus_message *m, sd_bus_error *error, void *userdata) {
1234 char ***l = userdata;
1235 int r;
1236
1237 assert(bus);
1238 assert(member);
1239 assert(m);
1240 assert(l);
1241
1242 r = sd_bus_message_enter_container(m, 'a', "(iay)");
1243 if (r < 0)
1244 return r;
1245
1246 for (;;) {
1247 char *pretty = NULL;
1248
1249 r = read_dns_server_one(m, false, &pretty);
1250 if (r < 0)
1251 return r;
1252 if (r == 0)
1253 break;
1254
1255 if (isempty(pretty))
1256 continue;
1257
1258 r = strv_consume(l, pretty);
1259 if (r < 0)
1260 return r;
1261 }
1262
1263 r = sd_bus_message_exit_container(m);
1264 if (r < 0)
1265 return r;
1266
1267 return 0;
1268 }
1269
1270 static int map_link_current_dns_server(sd_bus *bus, const char *member, sd_bus_message *m, sd_bus_error *error, void *userdata) {
1271 assert(m);
1272 assert(userdata);
1273
1274 return read_dns_server_one(m, false, userdata);
1275 }
1276
1277 static int read_domain_one(sd_bus_message *m, bool with_ifindex, char **ret) {
1278 _cleanup_free_ char *str = NULL;
1279 int ifindex, route_only, r;
1280 const char *domain;
1281
1282 assert(m);
1283 assert(ret);
1284
1285 if (with_ifindex)
1286 r = sd_bus_message_read(m, "(isb)", &ifindex, &domain, &route_only);
1287 else
1288 r = sd_bus_message_read(m, "(sb)", &domain, &route_only);
1289 if (r <= 0)
1290 return r;
1291
1292 if (with_ifindex && ifindex != 0) {
1293 /* only show the global ones here */
1294 *ret = NULL;
1295 return 1;
1296 }
1297
1298 if (route_only)
1299 str = strappend("~", domain);
1300 else
1301 str = strdup(domain);
1302 if (!str)
1303 return -ENOMEM;
1304
1305 *ret = TAKE_PTR(str);
1306
1307 return 1;
1308 }
1309
1310 static int map_link_domains(sd_bus *bus, const char *member, sd_bus_message *m, sd_bus_error *error, void *userdata) {
1311 char ***l = userdata;
1312 int r;
1313
1314 assert(bus);
1315 assert(member);
1316 assert(m);
1317 assert(l);
1318
1319 r = sd_bus_message_enter_container(m, 'a', "(sb)");
1320 if (r < 0)
1321 return r;
1322
1323 for (;;) {
1324 char *pretty = NULL;
1325
1326 r = read_domain_one(m, false, &pretty);
1327 if (r < 0)
1328 return r;
1329 if (r == 0)
1330 break;
1331
1332 if (isempty(pretty))
1333 continue;
1334
1335 r = strv_consume(l, pretty);
1336 if (r < 0)
1337 return r;
1338 }
1339
1340 r = sd_bus_message_exit_container(m);
1341 if (r < 0)
1342 return r;
1343
1344 return 0;
1345 }
1346
1347 static int status_print_strv_ifindex(int ifindex, const char *ifname, char **p) {
1348 char **i;
1349
1350 printf("%sLink %i (%s)%s:",
1351 ansi_highlight(), ifindex, ifname, ansi_normal());
1352
1353 STRV_FOREACH(i, p)
1354 printf(" %s", *i);
1355
1356 printf("\n");
1357
1358 return 0;
1359 }
1360
1361 struct link_info {
1362 uint64_t scopes_mask;
1363 const char *llmnr;
1364 const char *mdns;
1365 const char *dns_over_tls;
1366 const char *dnssec;
1367 char *current_dns;
1368 char **dns;
1369 char **domains;
1370 char **ntas;
1371 bool dnssec_supported;
1372 };
1373
1374 static void link_info_clear(struct link_info *p) {
1375 free(p->current_dns);
1376 strv_free(p->dns);
1377 strv_free(p->domains);
1378 strv_free(p->ntas);
1379 }
1380
1381 static int status_ifindex(sd_bus *bus, int ifindex, const char *name, StatusMode mode, bool *empty_line) {
1382 static const struct bus_properties_map property_map[] = {
1383 { "ScopesMask", "t", NULL, offsetof(struct link_info, scopes_mask) },
1384 { "DNS", "a(iay)", map_link_dns_servers, offsetof(struct link_info, dns) },
1385 { "CurrentDNSServer", "(iay)", map_link_current_dns_server, offsetof(struct link_info, current_dns) },
1386 { "Domains", "a(sb)", map_link_domains, offsetof(struct link_info, domains) },
1387 { "LLMNR", "s", NULL, offsetof(struct link_info, llmnr) },
1388 { "MulticastDNS", "s", NULL, offsetof(struct link_info, mdns) },
1389 { "DNSOverTLS", "s", NULL, offsetof(struct link_info, dns_over_tls) },
1390 { "DNSSEC", "s", NULL, offsetof(struct link_info, dnssec) },
1391 { "DNSSECNegativeTrustAnchors", "as", NULL, offsetof(struct link_info, ntas) },
1392 { "DNSSECSupported", "b", NULL, offsetof(struct link_info, dnssec_supported) },
1393 {}
1394 };
1395 _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
1396 _cleanup_(sd_bus_message_unrefp) sd_bus_message *m = NULL;
1397 _cleanup_(link_info_clear) struct link_info link_info = {};
1398 _cleanup_free_ char *ifi = NULL, *p = NULL;
1399 char ifname[IF_NAMESIZE] = "";
1400 char **i;
1401 int r;
1402
1403 assert(bus);
1404 assert(ifindex > 0);
1405
1406 if (!name) {
1407 if (!if_indextoname(ifindex, ifname))
1408 return log_error_errno(errno, "Failed to resolve interface name for %i: %m", ifindex);
1409
1410 name = ifname;
1411 }
1412
1413 if (asprintf(&ifi, "%i", ifindex) < 0)
1414 return log_oom();
1415
1416 r = sd_bus_path_encode("/org/freedesktop/resolve1/link", ifi, &p);
1417 if (r < 0)
1418 return log_oom();
1419
1420 r = bus_map_all_properties(bus,
1421 "org.freedesktop.resolve1",
1422 p,
1423 property_map,
1424 BUS_MAP_BOOLEAN_AS_BOOL,
1425 &error,
1426 &m,
1427 &link_info);
1428 if (r < 0)
1429 return log_error_errno(r, "Failed to get link data for %i: %s", ifindex, bus_error_message(&error, r));
1430
1431 (void) pager_open(arg_pager_flags);
1432
1433 if (mode == STATUS_DNS)
1434 return status_print_strv_ifindex(ifindex, name, link_info.dns);
1435
1436 if (mode == STATUS_DOMAIN)
1437 return status_print_strv_ifindex(ifindex, name, link_info.domains);
1438
1439 if (mode == STATUS_NTA)
1440 return status_print_strv_ifindex(ifindex, name, link_info.ntas);
1441
1442 if (mode == STATUS_LLMNR) {
1443 printf("%sLink %i (%s)%s: %s\n",
1444 ansi_highlight(), ifindex, name, ansi_normal(),
1445 strna(link_info.llmnr));
1446
1447 return 0;
1448 }
1449
1450 if (mode == STATUS_MDNS) {
1451 printf("%sLink %i (%s)%s: %s\n",
1452 ansi_highlight(), ifindex, name, ansi_normal(),
1453 strna(link_info.mdns));
1454
1455 return 0;
1456 }
1457
1458 if (mode == STATUS_PRIVATE) {
1459 printf("%sLink %i (%s)%s: %s\n",
1460 ansi_highlight(), ifindex, name, ansi_normal(),
1461 strna(link_info.dns_over_tls));
1462
1463 return 0;
1464 }
1465
1466 if (mode == STATUS_DNSSEC) {
1467 printf("%sLink %i (%s)%s: %s\n",
1468 ansi_highlight(), ifindex, name, ansi_normal(),
1469 strna(link_info.dnssec));
1470
1471 return 0;
1472 }
1473
1474 if (empty_line && *empty_line)
1475 fputc('\n', stdout);
1476
1477 printf("%sLink %i (%s)%s\n",
1478 ansi_highlight(), ifindex, name, ansi_normal());
1479
1480 if (link_info.scopes_mask == 0)
1481 printf(" Current Scopes: none\n");
1482 else
1483 printf(" Current Scopes:%s%s%s%s%s\n",
1484 link_info.scopes_mask & SD_RESOLVED_DNS ? " DNS" : "",
1485 link_info.scopes_mask & SD_RESOLVED_LLMNR_IPV4 ? " LLMNR/IPv4" : "",
1486 link_info.scopes_mask & SD_RESOLVED_LLMNR_IPV6 ? " LLMNR/IPv6" : "",
1487 link_info.scopes_mask & SD_RESOLVED_MDNS_IPV4 ? " mDNS/IPv4" : "",
1488 link_info.scopes_mask & SD_RESOLVED_MDNS_IPV6 ? " mDNS/IPv6" : "");
1489
1490 printf(" LLMNR setting: %s\n"
1491 "MulticastDNS setting: %s\n"
1492 " DNSOverTLS setting: %s\n"
1493 " DNSSEC setting: %s\n"
1494 " DNSSEC supported: %s\n",
1495 strna(link_info.llmnr),
1496 strna(link_info.mdns),
1497 strna(link_info.dns_over_tls),
1498 strna(link_info.dnssec),
1499 yes_no(link_info.dnssec_supported));
1500
1501 if (link_info.current_dns)
1502 printf(" Current DNS Server: %s\n", link_info.current_dns);
1503
1504 STRV_FOREACH(i, link_info.dns) {
1505 printf(" %s %s\n",
1506 i == link_info.dns ? "DNS Servers:" : " ",
1507 *i);
1508 }
1509
1510 STRV_FOREACH(i, link_info.domains) {
1511 printf(" %s %s\n",
1512 i == link_info.domains ? "DNS Domain:" : " ",
1513 *i);
1514 }
1515
1516 STRV_FOREACH(i, link_info.ntas) {
1517 printf(" %s %s\n",
1518 i == link_info.ntas ? "DNSSEC NTA:" : " ",
1519 *i);
1520 }
1521
1522 if (empty_line)
1523 *empty_line = true;
1524
1525 return 0;
1526 }
1527
1528 static int map_global_dns_servers(sd_bus *bus, const char *member, sd_bus_message *m, sd_bus_error *error, void *userdata) {
1529 char ***l = userdata;
1530 int r;
1531
1532 assert(bus);
1533 assert(member);
1534 assert(m);
1535 assert(l);
1536
1537 r = sd_bus_message_enter_container(m, 'a', "(iiay)");
1538 if (r < 0)
1539 return r;
1540
1541 for (;;) {
1542 char *pretty = NULL;
1543
1544 r = read_dns_server_one(m, true, &pretty);
1545 if (r < 0)
1546 return r;
1547 if (r == 0)
1548 break;
1549
1550 if (isempty(pretty))
1551 continue;
1552
1553 r = strv_consume(l, pretty);
1554 if (r < 0)
1555 return r;
1556 }
1557
1558 r = sd_bus_message_exit_container(m);
1559 if (r < 0)
1560 return r;
1561
1562 return 0;
1563 }
1564
1565 static int map_global_current_dns_server(sd_bus *bus, const char *member, sd_bus_message *m, sd_bus_error *error, void *userdata) {
1566 assert(m);
1567 assert(userdata);
1568
1569 return read_dns_server_one(m, true, userdata);
1570 }
1571
1572 static int map_global_domains(sd_bus *bus, const char *member, sd_bus_message *m, sd_bus_error *error, void *userdata) {
1573 char ***l = userdata;
1574 int r;
1575
1576 assert(bus);
1577 assert(member);
1578 assert(m);
1579 assert(l);
1580
1581 r = sd_bus_message_enter_container(m, 'a', "(isb)");
1582 if (r < 0)
1583 return r;
1584
1585 for (;;) {
1586 char *pretty = NULL;
1587
1588 r = read_domain_one(m, true, &pretty);
1589 if (r < 0)
1590 return r;
1591 if (r == 0)
1592 break;
1593
1594 if (isempty(pretty))
1595 continue;
1596
1597 r = strv_consume(l, pretty);
1598 if (r < 0)
1599 return r;
1600 }
1601
1602 r = sd_bus_message_exit_container(m);
1603 if (r < 0)
1604 return r;
1605
1606 return 0;
1607 }
1608
1609 static int status_print_strv_global(char **p) {
1610 char **i;
1611
1612 printf("%sGlobal%s:", ansi_highlight(), ansi_normal());
1613
1614 STRV_FOREACH(i, p)
1615 printf(" %s", *i);
1616
1617 printf("\n");
1618
1619 return 0;
1620 }
1621
1622 struct global_info {
1623 char *current_dns;
1624 char **dns;
1625 char **fallback_dns;
1626 char **domains;
1627 char **ntas;
1628 const char *llmnr;
1629 const char *mdns;
1630 const char *dns_over_tls;
1631 const char *dnssec;
1632 bool dnssec_supported;
1633 };
1634
1635 static void global_info_clear(struct global_info *p) {
1636 free(p->current_dns);
1637 strv_free(p->dns);
1638 strv_free(p->fallback_dns);
1639 strv_free(p->domains);
1640 strv_free(p->ntas);
1641 }
1642
1643 static int status_global(sd_bus *bus, StatusMode mode, bool *empty_line) {
1644 static const struct bus_properties_map property_map[] = {
1645 { "DNS", "a(iiay)", map_global_dns_servers, offsetof(struct global_info, dns) },
1646 { "FallbackDNS", "a(iiay)", map_global_dns_servers, offsetof(struct global_info, fallback_dns) },
1647 { "CurrentDNSServer", "(iiay)", map_global_current_dns_server, offsetof(struct global_info, current_dns) },
1648 { "Domains", "a(isb)", map_global_domains, offsetof(struct global_info, domains) },
1649 { "DNSSECNegativeTrustAnchors", "as", NULL, offsetof(struct global_info, ntas) },
1650 { "LLMNR", "s", NULL, offsetof(struct global_info, llmnr) },
1651 { "MulticastDNS", "s", NULL, offsetof(struct global_info, mdns) },
1652 { "DNSOverTLS", "s", NULL, offsetof(struct global_info, dns_over_tls) },
1653 { "DNSSEC", "s", NULL, offsetof(struct global_info, dnssec) },
1654 { "DNSSECSupported", "b", NULL, offsetof(struct global_info, dnssec_supported) },
1655 {}
1656 };
1657 _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
1658 _cleanup_(sd_bus_message_unrefp) sd_bus_message *m = NULL;
1659 _cleanup_(global_info_clear) struct global_info global_info = {};
1660 char **i;
1661 int r;
1662
1663 assert(bus);
1664 assert(empty_line);
1665
1666 r = bus_map_all_properties(bus,
1667 "org.freedesktop.resolve1",
1668 "/org/freedesktop/resolve1",
1669 property_map,
1670 BUS_MAP_BOOLEAN_AS_BOOL,
1671 &error,
1672 &m,
1673 &global_info);
1674 if (r < 0)
1675 return log_error_errno(r, "Failed to get global data: %s", bus_error_message(&error, r));
1676
1677 (void) pager_open(arg_pager_flags);
1678
1679 if (mode == STATUS_DNS)
1680 return status_print_strv_global(global_info.dns);
1681
1682 if (mode == STATUS_DOMAIN)
1683 return status_print_strv_global(global_info.domains);
1684
1685 if (mode == STATUS_NTA)
1686 return status_print_strv_global(global_info.ntas);
1687
1688 if (mode == STATUS_LLMNR) {
1689 printf("%sGlobal%s: %s\n", ansi_highlight(), ansi_normal(),
1690 strna(global_info.llmnr));
1691
1692 return 0;
1693 }
1694
1695 if (mode == STATUS_MDNS) {
1696 printf("%sGlobal%s: %s\n", ansi_highlight(), ansi_normal(),
1697 strna(global_info.mdns));
1698
1699 return 0;
1700 }
1701
1702 if (mode == STATUS_PRIVATE) {
1703 printf("%sGlobal%s: %s\n", ansi_highlight(), ansi_normal(),
1704 strna(global_info.dns_over_tls));
1705
1706 return 0;
1707 }
1708
1709 if (mode == STATUS_DNSSEC) {
1710 printf("%sGlobal%s: %s\n", ansi_highlight(), ansi_normal(),
1711 strna(global_info.dnssec));
1712
1713 return 0;
1714 }
1715
1716 printf("%sGlobal%s\n", ansi_highlight(), ansi_normal());
1717
1718 printf(" LLMNR setting: %s\n"
1719 "MulticastDNS setting: %s\n"
1720 " DNSOverTLS setting: %s\n"
1721 " DNSSEC setting: %s\n"
1722 " DNSSEC supported: %s\n",
1723 strna(global_info.llmnr),
1724 strna(global_info.mdns),
1725 strna(global_info.dns_over_tls),
1726 strna(global_info.dnssec),
1727 yes_no(global_info.dnssec_supported));
1728
1729 if (global_info.current_dns)
1730 printf(" Current DNS Server: %s\n", global_info.current_dns);
1731
1732 STRV_FOREACH(i, global_info.dns) {
1733 printf(" %s %s\n",
1734 i == global_info.dns ? "DNS Servers:" : " ",
1735 *i);
1736 }
1737
1738 STRV_FOREACH(i, global_info.fallback_dns) {
1739 printf("%s %s\n",
1740 i == global_info.fallback_dns ? "Fallback DNS Servers:" : " ",
1741 *i);
1742 }
1743
1744 STRV_FOREACH(i, global_info.domains) {
1745 printf(" %s %s\n",
1746 i == global_info.domains ? "DNS Domain:" : " ",
1747 *i);
1748 }
1749
1750 strv_sort(global_info.ntas);
1751 STRV_FOREACH(i, global_info.ntas) {
1752 printf(" %s %s\n",
1753 i == global_info.ntas ? "DNSSEC NTA:" : " ",
1754 *i);
1755 }
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 int q, r = 0;
1826
1827 if (argc > 1) {
1828 char **ifname;
1829 bool empty_line = false;
1830
1831 STRV_FOREACH(ifname, argv + 1) {
1832 int ifindex;
1833
1834 ifindex = parse_ifindex_and_warn(*ifname);
1835 if (ifindex < 0)
1836 continue;
1837
1838 q = status_ifindex(bus, ifindex, NULL, STATUS_ALL, &empty_line);
1839 if (q < 0)
1840 r = q;
1841 }
1842 } else
1843 r = status_all(bus, STATUS_ALL);
1844
1845 return r;
1846 }
1847
1848 static int log_interface_is_managed(int r, int ifindex) {
1849 char ifname[IFNAMSIZ];
1850
1851 return log_error_errno(r,
1852 "The specified interface %s is managed by systemd-networkd. Operation refused.\n"
1853 "Please configure DNS settings for systemd-networkd managed interfaces directly in their .network files.",
1854 strna(if_indextoname(ifindex, ifname)));
1855 }
1856
1857 static int verb_dns(int argc, char **argv, void *userdata) {
1858 _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
1859 _cleanup_(sd_bus_message_unrefp) sd_bus_message *req = NULL;
1860 sd_bus *bus = userdata;
1861 char **p;
1862 int r;
1863
1864 assert(bus);
1865
1866 if (argc >= 2) {
1867 r = ifname_mangle(argv[1]);
1868 if (r < 0)
1869 return r;
1870 }
1871
1872 if (arg_ifindex <= 0)
1873 return status_all(bus, STATUS_DNS);
1874
1875 if (argc < 3)
1876 return status_ifindex(bus, arg_ifindex, NULL, STATUS_DNS, NULL);
1877
1878 r = sd_bus_message_new_method_call(
1879 bus,
1880 &req,
1881 "org.freedesktop.resolve1",
1882 "/org/freedesktop/resolve1",
1883 "org.freedesktop.resolve1.Manager",
1884 "SetLinkDNS");
1885 if (r < 0)
1886 return bus_log_create_error(r);
1887
1888 r = sd_bus_message_append(req, "i", arg_ifindex);
1889 if (r < 0)
1890 return bus_log_create_error(r);
1891
1892 r = sd_bus_message_open_container(req, 'a', "(iay)");
1893 if (r < 0)
1894 return bus_log_create_error(r);
1895
1896 /* If only argument is the empty string, then call SetLinkDNS() with an
1897 * empty list, which will clear the list of domains for an interface. */
1898 if (!strv_equal(argv + 2, STRV_MAKE(""))) {
1899 STRV_FOREACH(p, argv + 2) {
1900 struct in_addr_data data;
1901
1902 r = in_addr_from_string_auto(*p, &data.family, &data.address);
1903 if (r < 0)
1904 return log_error_errno(r, "Failed to parse DNS server address: %s", *p);
1905
1906 r = sd_bus_message_open_container(req, 'r', "iay");
1907 if (r < 0)
1908 return bus_log_create_error(r);
1909
1910 r = sd_bus_message_append(req, "i", data.family);
1911 if (r < 0)
1912 return bus_log_create_error(r);
1913
1914 r = sd_bus_message_append_array(req, 'y', &data.address, FAMILY_ADDRESS_SIZE(data.family));
1915 if (r < 0)
1916 return bus_log_create_error(r);
1917
1918 r = sd_bus_message_close_container(req);
1919 if (r < 0)
1920 return bus_log_create_error(r);
1921 }
1922 }
1923
1924 r = sd_bus_message_close_container(req);
1925 if (r < 0)
1926 return bus_log_create_error(r);
1927
1928 r = sd_bus_call(bus, req, 0, &error, NULL);
1929 if (r < 0) {
1930 if (sd_bus_error_has_name(&error, BUS_ERROR_LINK_BUSY))
1931 return log_interface_is_managed(r, arg_ifindex);
1932
1933 if (arg_ifindex_permissive &&
1934 sd_bus_error_has_name(&error, BUS_ERROR_NO_SUCH_LINK))
1935 return 0;
1936
1937 return log_error_errno(r, "Failed to set DNS configuration: %s", bus_error_message(&error, r));
1938 }
1939
1940 return 0;
1941 }
1942
1943 static int verb_domain(int argc, char **argv, void *userdata) {
1944 _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
1945 _cleanup_(sd_bus_message_unrefp) sd_bus_message *req = NULL;
1946 sd_bus *bus = userdata;
1947 char **p;
1948 int r;
1949
1950 assert(bus);
1951
1952 if (argc >= 2) {
1953 r = ifname_mangle(argv[1]);
1954 if (r < 0)
1955 return r;
1956 }
1957
1958 if (arg_ifindex <= 0)
1959 return status_all(bus, STATUS_DOMAIN);
1960
1961 if (argc < 3)
1962 return status_ifindex(bus, arg_ifindex, NULL, STATUS_DOMAIN, NULL);
1963
1964 r = sd_bus_message_new_method_call(
1965 bus,
1966 &req,
1967 "org.freedesktop.resolve1",
1968 "/org/freedesktop/resolve1",
1969 "org.freedesktop.resolve1.Manager",
1970 "SetLinkDomains");
1971 if (r < 0)
1972 return bus_log_create_error(r);
1973
1974 r = sd_bus_message_append(req, "i", arg_ifindex);
1975 if (r < 0)
1976 return bus_log_create_error(r);
1977
1978 r = sd_bus_message_open_container(req, 'a', "(sb)");
1979 if (r < 0)
1980 return bus_log_create_error(r);
1981
1982 /* If only argument is the empty string, then call SetLinkDomains() with an
1983 * empty list, which will clear the list of domains for an interface. */
1984 if (!strv_equal(argv + 2, STRV_MAKE(""))) {
1985 STRV_FOREACH(p, argv + 2) {
1986 const char *n;
1987
1988 n = **p == '~' ? *p + 1 : *p;
1989
1990 r = dns_name_is_valid(n);
1991 if (r < 0)
1992 return log_error_errno(r, "Failed to validate specified domain %s: %m", n);
1993 if (r == 0) {
1994 log_error("Domain not valid: %s", n);
1995 return -EINVAL;
1996 }
1997
1998 r = sd_bus_message_append(req, "(sb)", n, **p == '~');
1999 if (r < 0)
2000 return bus_log_create_error(r);
2001 }
2002 }
2003
2004 r = sd_bus_message_close_container(req);
2005 if (r < 0)
2006 return bus_log_create_error(r);
2007
2008 r = sd_bus_call(bus, req, 0, &error, NULL);
2009 if (r < 0) {
2010 if (sd_bus_error_has_name(&error, BUS_ERROR_LINK_BUSY))
2011 return log_interface_is_managed(r, arg_ifindex);
2012
2013 if (arg_ifindex_permissive &&
2014 sd_bus_error_has_name(&error, BUS_ERROR_NO_SUCH_LINK))
2015 return 0;
2016
2017 return log_error_errno(r, "Failed to set domain configuration: %s", bus_error_message(&error, r));
2018 }
2019
2020 return 0;
2021 }
2022
2023 static int verb_llmnr(int argc, char **argv, void *userdata) {
2024 _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
2025 sd_bus *bus = userdata;
2026 int r;
2027
2028 assert(bus);
2029
2030 if (argc >= 2) {
2031 r = ifname_mangle(argv[1]);
2032 if (r < 0)
2033 return r;
2034 }
2035
2036 if (arg_ifindex <= 0)
2037 return status_all(bus, STATUS_LLMNR);
2038
2039 if (argc < 3)
2040 return status_ifindex(bus, arg_ifindex, NULL, STATUS_LLMNR, NULL);
2041
2042 r = sd_bus_call_method(bus,
2043 "org.freedesktop.resolve1",
2044 "/org/freedesktop/resolve1",
2045 "org.freedesktop.resolve1.Manager",
2046 "SetLinkLLMNR",
2047 &error,
2048 NULL,
2049 "is", arg_ifindex, argv[2]);
2050 if (r < 0) {
2051 if (sd_bus_error_has_name(&error, BUS_ERROR_LINK_BUSY))
2052 return log_interface_is_managed(r, arg_ifindex);
2053
2054 if (arg_ifindex_permissive &&
2055 sd_bus_error_has_name(&error, BUS_ERROR_NO_SUCH_LINK))
2056 return 0;
2057
2058 return log_error_errno(r, "Failed to set LLMNR configuration: %s", bus_error_message(&error, r));
2059 }
2060
2061 return 0;
2062 }
2063
2064 static int verb_mdns(int argc, char **argv, void *userdata) {
2065 _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
2066 sd_bus *bus = userdata;
2067 int r;
2068
2069 assert(bus);
2070
2071 if (argc >= 2) {
2072 r = ifname_mangle(argv[1]);
2073 if (r < 0)
2074 return r;
2075 }
2076
2077 if (arg_ifindex <= 0)
2078 return status_all(bus, STATUS_MDNS);
2079
2080 if (argc < 3)
2081 return status_ifindex(bus, arg_ifindex, NULL, STATUS_MDNS, NULL);
2082
2083 r = sd_bus_call_method(bus,
2084 "org.freedesktop.resolve1",
2085 "/org/freedesktop/resolve1",
2086 "org.freedesktop.resolve1.Manager",
2087 "SetLinkMulticastDNS",
2088 &error,
2089 NULL,
2090 "is", arg_ifindex, argv[2]);
2091 if (r < 0) {
2092 if (sd_bus_error_has_name(&error, BUS_ERROR_LINK_BUSY))
2093 return log_interface_is_managed(r, arg_ifindex);
2094
2095 if (arg_ifindex_permissive &&
2096 sd_bus_error_has_name(&error, BUS_ERROR_NO_SUCH_LINK))
2097 return 0;
2098
2099 return log_error_errno(r, "Failed to set MulticastDNS configuration: %s", bus_error_message(&error, r));
2100 }
2101
2102 return 0;
2103 }
2104
2105 static int verb_dns_over_tls(int argc, char **argv, void *userdata) {
2106 _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
2107 sd_bus *bus = userdata;
2108 int r;
2109
2110 assert(bus);
2111
2112 if (argc >= 2) {
2113 r = ifname_mangle(argv[1]);
2114 if (r < 0)
2115 return r;
2116 }
2117
2118 if (arg_ifindex <= 0)
2119 return status_all(bus, STATUS_PRIVATE);
2120
2121 if (argc < 3)
2122 return status_ifindex(bus, arg_ifindex, NULL, STATUS_PRIVATE, NULL);
2123
2124 r = sd_bus_call_method(bus,
2125 "org.freedesktop.resolve1",
2126 "/org/freedesktop/resolve1",
2127 "org.freedesktop.resolve1.Manager",
2128 "SetLinkDNSOverTLS",
2129 &error,
2130 NULL,
2131 "is", arg_ifindex, argv[2]);
2132 if (r < 0) {
2133 if (sd_bus_error_has_name(&error, BUS_ERROR_LINK_BUSY))
2134 return log_interface_is_managed(r, arg_ifindex);
2135
2136 if (arg_ifindex_permissive &&
2137 sd_bus_error_has_name(&error, BUS_ERROR_NO_SUCH_LINK))
2138 return 0;
2139
2140 return log_error_errno(r, "Failed to set DNSOverTLS configuration: %s", bus_error_message(&error, r));
2141 }
2142
2143 return 0;
2144 }
2145
2146 static int verb_dnssec(int argc, char **argv, void *userdata) {
2147 _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
2148 sd_bus *bus = userdata;
2149 int r;
2150
2151 assert(bus);
2152
2153 if (argc >= 2) {
2154 r = ifname_mangle(argv[1]);
2155 if (r < 0)
2156 return r;
2157 }
2158
2159 if (arg_ifindex <= 0)
2160 return status_all(bus, STATUS_DNSSEC);
2161
2162 if (argc < 3)
2163 return status_ifindex(bus, arg_ifindex, NULL, STATUS_DNSSEC, NULL);
2164
2165 r = sd_bus_call_method(bus,
2166 "org.freedesktop.resolve1",
2167 "/org/freedesktop/resolve1",
2168 "org.freedesktop.resolve1.Manager",
2169 "SetLinkDNSSEC",
2170 &error,
2171 NULL,
2172 "is", arg_ifindex, argv[2]);
2173 if (r < 0) {
2174 if (sd_bus_error_has_name(&error, BUS_ERROR_LINK_BUSY))
2175 return log_interface_is_managed(r, arg_ifindex);
2176
2177 if (arg_ifindex_permissive &&
2178 sd_bus_error_has_name(&error, BUS_ERROR_NO_SUCH_LINK))
2179 return 0;
2180
2181 return log_error_errno(r, "Failed to set DNSSEC configuration: %s", bus_error_message(&error, r));
2182 }
2183
2184 return 0;
2185 }
2186
2187 static int verb_nta(int argc, char **argv, void *userdata) {
2188 _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
2189 _cleanup_(sd_bus_message_unrefp) sd_bus_message *req = NULL;
2190 sd_bus *bus = userdata;
2191 char **p;
2192 int r;
2193 bool clear;
2194
2195 assert(bus);
2196
2197 if (argc >= 2) {
2198 r = ifname_mangle(argv[1]);
2199 if (r < 0)
2200 return r;
2201 }
2202
2203 if (arg_ifindex <= 0)
2204 return status_all(bus, STATUS_NTA);
2205
2206 if (argc < 3)
2207 return status_ifindex(bus, arg_ifindex, NULL, STATUS_NTA, NULL);
2208
2209 /* If only argument is the empty string, then call SetLinkDNSSECNegativeTrustAnchors()
2210 * with an empty list, which will clear the list of domains for an interface. */
2211 clear = strv_equal(argv + 2, STRV_MAKE(""));
2212
2213 if (!clear)
2214 STRV_FOREACH(p, argv + 2) {
2215 r = dns_name_is_valid(*p);
2216 if (r < 0)
2217 return log_error_errno(r, "Failed to validate specified domain %s: %m", *p);
2218 if (r == 0) {
2219 log_error("Domain not valid: %s", *p);
2220 return -EINVAL;
2221 }
2222 }
2223
2224 r = sd_bus_message_new_method_call(
2225 bus,
2226 &req,
2227 "org.freedesktop.resolve1",
2228 "/org/freedesktop/resolve1",
2229 "org.freedesktop.resolve1.Manager",
2230 "SetLinkDNSSECNegativeTrustAnchors");
2231 if (r < 0)
2232 return bus_log_create_error(r);
2233
2234 r = sd_bus_message_append(req, "i", arg_ifindex);
2235 if (r < 0)
2236 return bus_log_create_error(r);
2237
2238 r = sd_bus_message_append_strv(req, clear ? NULL : argv + 2);
2239 if (r < 0)
2240 return bus_log_create_error(r);
2241
2242 r = sd_bus_call(bus, req, 0, &error, NULL);
2243 if (r < 0) {
2244 if (sd_bus_error_has_name(&error, BUS_ERROR_LINK_BUSY))
2245 return log_interface_is_managed(r, arg_ifindex);
2246
2247 if (arg_ifindex_permissive &&
2248 sd_bus_error_has_name(&error, BUS_ERROR_NO_SUCH_LINK))
2249 return 0;
2250
2251 return log_error_errno(r, "Failed to set DNSSEC NTA configuration: %s", bus_error_message(&error, r));
2252 }
2253
2254 return 0;
2255 }
2256
2257 static int verb_revert_link(int argc, char **argv, void *userdata) {
2258 _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
2259 sd_bus *bus = userdata;
2260 int r;
2261
2262 assert(bus);
2263
2264 if (argc >= 2) {
2265 r = ifname_mangle(argv[1]);
2266 if (r < 0)
2267 return r;
2268 }
2269
2270 if (arg_ifindex <= 0)
2271 return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "Interface argument required.");
2272
2273 r = sd_bus_call_method(bus,
2274 "org.freedesktop.resolve1",
2275 "/org/freedesktop/resolve1",
2276 "org.freedesktop.resolve1.Manager",
2277 "RevertLink",
2278 &error,
2279 NULL,
2280 "i", arg_ifindex);
2281 if (r < 0) {
2282 if (arg_ifindex_permissive &&
2283 sd_bus_error_has_name(&error, BUS_ERROR_NO_SUCH_LINK))
2284 return 0;
2285
2286 return log_error_errno(r, "Failed to revert interface configuration: %s", bus_error_message(&error, r));
2287 }
2288
2289 return 0;
2290 }
2291
2292 static void help_protocol_types(void) {
2293 if (arg_legend)
2294 puts("Known protocol types:");
2295 puts("dns\nllmnr\nllmnr-ipv4\nllmnr-ipv6\nmdns\nmdns-ipv4\nmdns-ipv6");
2296 }
2297
2298 static void help_dns_types(void) {
2299 if (arg_legend)
2300 puts("Known DNS RR types:");
2301
2302 DUMP_STRING_TABLE(dns_type, int, _DNS_TYPE_MAX);
2303 }
2304
2305 static void help_dns_classes(void) {
2306 if (arg_legend)
2307 puts("Known DNS RR classes:");
2308
2309 DUMP_STRING_TABLE(dns_class, int, _DNS_CLASS_MAX);
2310 }
2311
2312 static int compat_help(void) {
2313 _cleanup_free_ char *link = NULL;
2314 int r;
2315
2316 r = terminal_urlify_man("resolvectl", "1", &link);
2317 if (r < 0)
2318 return log_oom();
2319
2320 printf("%1$s [OPTIONS...] HOSTNAME|ADDRESS...\n"
2321 "%1$s [OPTIONS...] --service [[NAME] TYPE] DOMAIN\n"
2322 "%1$s [OPTIONS...] --openpgp EMAIL@DOMAIN...\n"
2323 "%1$s [OPTIONS...] --statistics\n"
2324 "%1$s [OPTIONS...] --reset-statistics\n"
2325 "\n"
2326 "Resolve domain names, IPv4 and IPv6 addresses, DNS records, and services.\n\n"
2327 " -h --help Show this help\n"
2328 " --version Show package version\n"
2329 " --no-pager Do not pipe output into a pager\n"
2330 " -4 Resolve IPv4 addresses\n"
2331 " -6 Resolve IPv6 addresses\n"
2332 " -i --interface=INTERFACE Look on interface\n"
2333 " -p --protocol=PROTO|help Look via protocol\n"
2334 " -t --type=TYPE|help Query RR with DNS type\n"
2335 " -c --class=CLASS|help Query RR with DNS class\n"
2336 " --service Resolve service (SRV)\n"
2337 " --service-address=BOOL Resolve address for services (default: yes)\n"
2338 " --service-txt=BOOL Resolve TXT records for services (default: yes)\n"
2339 " --openpgp Query OpenPGP public key\n"
2340 " --tlsa Query TLS public key\n"
2341 " --cname=BOOL Follow CNAME redirects (default: yes)\n"
2342 " --search=BOOL Use search domains for single-label names\n"
2343 " (default: yes)\n"
2344 " --raw[=payload|packet] Dump the answer as binary data\n"
2345 " --legend=BOOL Print headers and additional info (default: yes)\n"
2346 " --statistics Show resolver statistics\n"
2347 " --reset-statistics Reset resolver statistics\n"
2348 " --status Show link and server status\n"
2349 " --flush-caches Flush all local DNS caches\n"
2350 " --reset-server-features\n"
2351 " Forget learnt DNS server feature levels\n"
2352 " --set-dns=SERVER Set per-interface DNS server address\n"
2353 " --set-domain=DOMAIN Set per-interface search domain\n"
2354 " --set-llmnr=MODE Set per-interface LLMNR mode\n"
2355 " --set-mdns=MODE Set per-interface MulticastDNS mode\n"
2356 " --set-dnsovertls=MODE Set per-interface DNS-over-TLS mode\n"
2357 " --set-dnssec=MODE Set per-interface DNSSEC mode\n"
2358 " --set-nta=DOMAIN Set per-interface DNSSEC NTA\n"
2359 " --revert Revert per-interface configuration\n"
2360 "\nSee the %2$s for details.\n"
2361 , program_invocation_short_name
2362 , link
2363 );
2364
2365 return 0;
2366 }
2367
2368 static int native_help(void) {
2369 _cleanup_free_ char *link = NULL;
2370 int r;
2371
2372 r = terminal_urlify_man("resolvectl", "1", &link);
2373 if (r < 0)
2374 return log_oom();
2375
2376 printf("%1$s [OPTIONS...] {COMMAND} ...\n"
2377 "\n"
2378 "Send control commands to the network name resolution manager, or\n"
2379 "resolve domain names, IPv4 and IPv6 addresses, DNS records, and services.\n"
2380 "\n"
2381 " -h --help Show this help\n"
2382 " --version Show package version\n"
2383 " --no-pager Do not pipe output into a pager\n"
2384 " -4 Resolve IPv4 addresses\n"
2385 " -6 Resolve IPv6 addresses\n"
2386 " -i --interface=INTERFACE Look on interface\n"
2387 " -p --protocol=PROTO|help Look via protocol\n"
2388 " -t --type=TYPE|help Query RR with DNS type\n"
2389 " -c --class=CLASS|help Query RR with DNS class\n"
2390 " --service-address=BOOL Resolve address for services (default: yes)\n"
2391 " --service-txt=BOOL Resolve TXT records for services (default: yes)\n"
2392 " --cname=BOOL Follow CNAME redirects (default: yes)\n"
2393 " --search=BOOL Use search domains for single-label names\n"
2394 " (default: yes)\n"
2395 " --raw[=payload|packet] Dump the answer as binary data\n"
2396 " --legend=BOOL Print headers and additional info (default: yes)\n"
2397 "\n"
2398 "Commands:\n"
2399 " query HOSTNAME|ADDRESS... Resolve domain names, IPv4 and IPv6 addresses\n"
2400 " service [[NAME] TYPE] DOMAIN Resolve service (SRV)\n"
2401 " openpgp EMAIL@DOMAIN... Query OpenPGP public key\n"
2402 " tlsa DOMAIN[:PORT]... Query TLS public key\n"
2403 " status [LINK...] Show link and server status\n"
2404 " statistics Show resolver statistics\n"
2405 " reset-statistics Reset resolver statistics\n"
2406 " flush-caches Flush all local DNS caches\n"
2407 " reset-server-features Forget learnt DNS server feature levels\n"
2408 " dns [LINK [SERVER...]] Get/set per-interface DNS server address\n"
2409 " domain [LINK [DOMAIN...]] Get/set per-interface search domain\n"
2410 " llmnr [LINK [MODE]] Get/set per-interface LLMNR mode\n"
2411 " mdns [LINK [MODE]] Get/set per-interface MulticastDNS mode\n"
2412 " dnsovertls [LINK [MODE]] Get/set per-interface DNS-over-TLS mode\n"
2413 " dnssec [LINK [MODE]] Get/set per-interface DNSSEC mode\n"
2414 " nta [LINK [DOMAIN...]] Get/set per-interface DNSSEC NTA\n"
2415 " revert LINK Revert per-interface configuration\n"
2416 "\nSee the %2$s for details.\n"
2417 , program_invocation_short_name
2418 , link
2419 );
2420
2421 return 0;
2422 }
2423
2424 static int verb_help(int argc, char **argv, void *userdata) {
2425 return native_help();
2426 }
2427
2428 static int compat_parse_argv(int argc, char *argv[]) {
2429 enum {
2430 ARG_VERSION = 0x100,
2431 ARG_LEGEND,
2432 ARG_SERVICE,
2433 ARG_CNAME,
2434 ARG_SERVICE_ADDRESS,
2435 ARG_SERVICE_TXT,
2436 ARG_OPENPGP,
2437 ARG_TLSA,
2438 ARG_RAW,
2439 ARG_SEARCH,
2440 ARG_STATISTICS,
2441 ARG_RESET_STATISTICS,
2442 ARG_STATUS,
2443 ARG_FLUSH_CACHES,
2444 ARG_RESET_SERVER_FEATURES,
2445 ARG_NO_PAGER,
2446 ARG_SET_DNS,
2447 ARG_SET_DOMAIN,
2448 ARG_SET_LLMNR,
2449 ARG_SET_MDNS,
2450 ARG_SET_PRIVATE,
2451 ARG_SET_DNSSEC,
2452 ARG_SET_NTA,
2453 ARG_REVERT_LINK,
2454 };
2455
2456 static const struct option options[] = {
2457 { "help", no_argument, NULL, 'h' },
2458 { "version", no_argument, NULL, ARG_VERSION },
2459 { "type", required_argument, NULL, 't' },
2460 { "class", required_argument, NULL, 'c' },
2461 { "legend", required_argument, NULL, ARG_LEGEND },
2462 { "interface", required_argument, NULL, 'i' },
2463 { "protocol", required_argument, NULL, 'p' },
2464 { "cname", required_argument, NULL, ARG_CNAME },
2465 { "service", no_argument, NULL, ARG_SERVICE },
2466 { "service-address", required_argument, NULL, ARG_SERVICE_ADDRESS },
2467 { "service-txt", required_argument, NULL, ARG_SERVICE_TXT },
2468 { "openpgp", no_argument, NULL, ARG_OPENPGP },
2469 { "tlsa", optional_argument, NULL, ARG_TLSA },
2470 { "raw", optional_argument, NULL, ARG_RAW },
2471 { "search", required_argument, NULL, ARG_SEARCH },
2472 { "statistics", no_argument, NULL, ARG_STATISTICS, },
2473 { "reset-statistics", no_argument, NULL, ARG_RESET_STATISTICS },
2474 { "status", no_argument, NULL, ARG_STATUS },
2475 { "flush-caches", no_argument, NULL, ARG_FLUSH_CACHES },
2476 { "reset-server-features", no_argument, NULL, ARG_RESET_SERVER_FEATURES },
2477 { "no-pager", no_argument, NULL, ARG_NO_PAGER },
2478 { "set-dns", required_argument, NULL, ARG_SET_DNS },
2479 { "set-domain", required_argument, NULL, ARG_SET_DOMAIN },
2480 { "set-llmnr", required_argument, NULL, ARG_SET_LLMNR },
2481 { "set-mdns", required_argument, NULL, ARG_SET_MDNS },
2482 { "set-dnsovertls", required_argument, NULL, ARG_SET_PRIVATE },
2483 { "set-dnssec", required_argument, NULL, ARG_SET_DNSSEC },
2484 { "set-nta", required_argument, NULL, ARG_SET_NTA },
2485 { "revert", no_argument, NULL, ARG_REVERT_LINK },
2486 {}
2487 };
2488
2489 int c, r;
2490
2491 assert(argc >= 0);
2492 assert(argv);
2493
2494 while ((c = getopt_long(argc, argv, "h46i:t:c:p:", options, NULL)) >= 0)
2495 switch(c) {
2496
2497 case 'h':
2498 return compat_help();
2499
2500 case ARG_VERSION:
2501 return version();
2502
2503 case '4':
2504 arg_family = AF_INET;
2505 break;
2506
2507 case '6':
2508 arg_family = AF_INET6;
2509 break;
2510
2511 case 'i':
2512 r = ifname_mangle(optarg);
2513 if (r < 0)
2514 return r;
2515 break;
2516
2517 case 't':
2518 if (streq(optarg, "help")) {
2519 help_dns_types();
2520 return 0;
2521 }
2522
2523 r = dns_type_from_string(optarg);
2524 if (r < 0) {
2525 log_error("Failed to parse RR record type %s", optarg);
2526 return r;
2527 }
2528 arg_type = (uint16_t) r;
2529 assert((int) arg_type == r);
2530
2531 arg_mode = MODE_RESOLVE_RECORD;
2532 break;
2533
2534 case 'c':
2535 if (streq(optarg, "help")) {
2536 help_dns_classes();
2537 return 0;
2538 }
2539
2540 r = dns_class_from_string(optarg);
2541 if (r < 0) {
2542 log_error("Failed to parse RR record class %s", optarg);
2543 return r;
2544 }
2545 arg_class = (uint16_t) r;
2546 assert((int) arg_class == r);
2547
2548 break;
2549
2550 case ARG_LEGEND:
2551 r = parse_boolean(optarg);
2552 if (r < 0)
2553 return log_error_errno(r, "Failed to parse --legend= argument");
2554
2555 arg_legend = r;
2556 break;
2557
2558 case 'p':
2559 if (streq(optarg, "help")) {
2560 help_protocol_types();
2561 return 0;
2562 } else if (streq(optarg, "dns"))
2563 arg_flags |= SD_RESOLVED_DNS;
2564 else if (streq(optarg, "llmnr"))
2565 arg_flags |= SD_RESOLVED_LLMNR;
2566 else if (streq(optarg, "llmnr-ipv4"))
2567 arg_flags |= SD_RESOLVED_LLMNR_IPV4;
2568 else if (streq(optarg, "llmnr-ipv6"))
2569 arg_flags |= SD_RESOLVED_LLMNR_IPV6;
2570 else if (streq(optarg, "mdns"))
2571 arg_flags |= SD_RESOLVED_MDNS;
2572 else if (streq(optarg, "mdns-ipv4"))
2573 arg_flags |= SD_RESOLVED_MDNS_IPV4;
2574 else if (streq(optarg, "mdns-ipv6"))
2575 arg_flags |= SD_RESOLVED_MDNS_IPV6;
2576 else
2577 return log_error_errno(SYNTHETIC_ERRNO(EINVAL),
2578 "Unknown protocol specifier: %s", optarg);
2579
2580 break;
2581
2582 case ARG_SERVICE:
2583 arg_mode = MODE_RESOLVE_SERVICE;
2584 break;
2585
2586 case ARG_OPENPGP:
2587 arg_mode = MODE_RESOLVE_OPENPGP;
2588 break;
2589
2590 case ARG_TLSA:
2591 arg_mode = MODE_RESOLVE_TLSA;
2592 if (!optarg || service_family_is_valid(optarg))
2593 arg_service_family = optarg;
2594 else
2595 return log_error_errno(SYNTHETIC_ERRNO(EINVAL),
2596 "Unknown service family \"%s\".", optarg);
2597 break;
2598
2599 case ARG_RAW:
2600 if (on_tty())
2601 return log_error_errno(SYNTHETIC_ERRNO(ENOTTY),
2602 "Refusing to write binary data to tty.");
2603
2604 if (optarg == NULL || streq(optarg, "payload"))
2605 arg_raw = RAW_PAYLOAD;
2606 else if (streq(optarg, "packet"))
2607 arg_raw = RAW_PACKET;
2608 else
2609 return log_error_errno(SYNTHETIC_ERRNO(EINVAL),
2610 "Unknown --raw specifier \"%s\".",
2611 optarg);
2612
2613 arg_legend = false;
2614 break;
2615
2616 case ARG_CNAME:
2617 r = parse_boolean(optarg);
2618 if (r < 0)
2619 return log_error_errno(r, "Failed to parse --cname= argument.");
2620 SET_FLAG(arg_flags, SD_RESOLVED_NO_CNAME, r == 0);
2621 break;
2622
2623 case ARG_SERVICE_ADDRESS:
2624 r = parse_boolean(optarg);
2625 if (r < 0)
2626 return log_error_errno(r, "Failed to parse --service-address= argument.");
2627 SET_FLAG(arg_flags, SD_RESOLVED_NO_ADDRESS, r == 0);
2628 break;
2629
2630 case ARG_SERVICE_TXT:
2631 r = parse_boolean(optarg);
2632 if (r < 0)
2633 return log_error_errno(r, "Failed to parse --service-txt= argument.");
2634 SET_FLAG(arg_flags, SD_RESOLVED_NO_TXT, r == 0);
2635 break;
2636
2637 case ARG_SEARCH:
2638 r = parse_boolean(optarg);
2639 if (r < 0)
2640 return log_error_errno(r, "Failed to parse --search argument.");
2641 SET_FLAG(arg_flags, SD_RESOLVED_NO_SEARCH, r == 0);
2642 break;
2643
2644 case ARG_STATISTICS:
2645 arg_mode = MODE_STATISTICS;
2646 break;
2647
2648 case ARG_RESET_STATISTICS:
2649 arg_mode = MODE_RESET_STATISTICS;
2650 break;
2651
2652 case ARG_FLUSH_CACHES:
2653 arg_mode = MODE_FLUSH_CACHES;
2654 break;
2655
2656 case ARG_RESET_SERVER_FEATURES:
2657 arg_mode = MODE_RESET_SERVER_FEATURES;
2658 break;
2659
2660 case ARG_STATUS:
2661 arg_mode = MODE_STATUS;
2662 break;
2663
2664 case ARG_NO_PAGER:
2665 arg_pager_flags |= PAGER_DISABLE;
2666 break;
2667
2668 case ARG_SET_DNS:
2669 r = strv_extend(&arg_set_dns, optarg);
2670 if (r < 0)
2671 return log_oom();
2672
2673 arg_mode = MODE_SET_LINK;
2674 break;
2675
2676 case ARG_SET_DOMAIN:
2677 r = strv_extend(&arg_set_domain, optarg);
2678 if (r < 0)
2679 return log_oom();
2680
2681 arg_mode = MODE_SET_LINK;
2682 break;
2683
2684 case ARG_SET_LLMNR:
2685 arg_set_llmnr = optarg;
2686 arg_mode = MODE_SET_LINK;
2687 break;
2688
2689 case ARG_SET_MDNS:
2690 arg_set_mdns = optarg;
2691 arg_mode = MODE_SET_LINK;
2692 break;
2693
2694 case ARG_SET_PRIVATE:
2695 arg_set_dns_over_tls = optarg;
2696 arg_mode = MODE_SET_LINK;
2697 break;
2698
2699 case ARG_SET_DNSSEC:
2700 arg_set_dnssec = optarg;
2701 arg_mode = MODE_SET_LINK;
2702 break;
2703
2704 case ARG_SET_NTA:
2705 r = strv_extend(&arg_set_nta, optarg);
2706 if (r < 0)
2707 return log_oom();
2708
2709 arg_mode = MODE_SET_LINK;
2710 break;
2711
2712 case ARG_REVERT_LINK:
2713 arg_mode = MODE_REVERT_LINK;
2714 break;
2715
2716 case '?':
2717 return -EINVAL;
2718
2719 default:
2720 assert_not_reached("Unhandled option");
2721 }
2722
2723 if (arg_type == 0 && arg_class != 0)
2724 return log_error_errno(SYNTHETIC_ERRNO(EINVAL),
2725 "--class= may only be used in conjunction with --type=.");
2726
2727 if (arg_type != 0 && arg_mode == MODE_RESOLVE_SERVICE)
2728 return log_error_errno(SYNTHETIC_ERRNO(EINVAL),
2729 "--service and --type= may not be combined.");
2730
2731 if (arg_type != 0 && arg_class == 0)
2732 arg_class = DNS_CLASS_IN;
2733
2734 if (arg_class != 0 && arg_type == 0)
2735 arg_type = DNS_TYPE_A;
2736
2737 if (IN_SET(arg_mode, MODE_SET_LINK, MODE_REVERT_LINK)) {
2738
2739 if (arg_ifindex <= 0)
2740 return log_error_errno(SYNTHETIC_ERRNO(EINVAL),
2741 "--set-dns=, --set-domain=, --set-llmnr=, --set-mdns=, --set-dnsovertls=, --set-dnssec=, --set-nta= and --revert require --interface=.");
2742 }
2743
2744 return 1 /* work to do */;
2745 }
2746
2747 static int native_parse_argv(int argc, char *argv[]) {
2748 enum {
2749 ARG_VERSION = 0x100,
2750 ARG_LEGEND,
2751 ARG_CNAME,
2752 ARG_SERVICE_ADDRESS,
2753 ARG_SERVICE_TXT,
2754 ARG_RAW,
2755 ARG_SEARCH,
2756 ARG_NO_PAGER,
2757 };
2758
2759 static const struct option options[] = {
2760 { "help", no_argument, NULL, 'h' },
2761 { "version", no_argument, NULL, ARG_VERSION },
2762 { "type", required_argument, NULL, 't' },
2763 { "class", required_argument, NULL, 'c' },
2764 { "legend", required_argument, NULL, ARG_LEGEND },
2765 { "interface", required_argument, NULL, 'i' },
2766 { "protocol", required_argument, NULL, 'p' },
2767 { "cname", required_argument, NULL, ARG_CNAME },
2768 { "service-address", required_argument, NULL, ARG_SERVICE_ADDRESS },
2769 { "service-txt", required_argument, NULL, ARG_SERVICE_TXT },
2770 { "raw", optional_argument, NULL, ARG_RAW },
2771 { "search", required_argument, NULL, ARG_SEARCH },
2772 { "no-pager", no_argument, NULL, ARG_NO_PAGER },
2773 {}
2774 };
2775
2776 int c, r;
2777
2778 assert(argc >= 0);
2779 assert(argv);
2780
2781 while ((c = getopt_long(argc, argv, "h46i:t:c:p:", options, NULL)) >= 0)
2782 switch(c) {
2783
2784 case 'h':
2785 return native_help();
2786
2787 case ARG_VERSION:
2788 return version();
2789
2790 case '4':
2791 arg_family = AF_INET;
2792 break;
2793
2794 case '6':
2795 arg_family = AF_INET6;
2796 break;
2797
2798 case 'i':
2799 r = ifname_mangle(optarg);
2800 if (r < 0)
2801 return r;
2802 break;
2803
2804 case 't':
2805 if (streq(optarg, "help")) {
2806 help_dns_types();
2807 return 0;
2808 }
2809
2810 r = dns_type_from_string(optarg);
2811 if (r < 0) {
2812 log_error("Failed to parse RR record type %s", optarg);
2813 return r;
2814 }
2815 arg_type = (uint16_t) r;
2816 assert((int) arg_type == r);
2817
2818 break;
2819
2820 case 'c':
2821 if (streq(optarg, "help")) {
2822 help_dns_classes();
2823 return 0;
2824 }
2825
2826 r = dns_class_from_string(optarg);
2827 if (r < 0) {
2828 log_error("Failed to parse RR record class %s", optarg);
2829 return r;
2830 }
2831 arg_class = (uint16_t) r;
2832 assert((int) arg_class == r);
2833
2834 break;
2835
2836 case ARG_LEGEND:
2837 r = parse_boolean(optarg);
2838 if (r < 0)
2839 return log_error_errno(r, "Failed to parse --legend= argument");
2840
2841 arg_legend = r;
2842 break;
2843
2844 case 'p':
2845 if (streq(optarg, "help")) {
2846 help_protocol_types();
2847 return 0;
2848 } else if (streq(optarg, "dns"))
2849 arg_flags |= SD_RESOLVED_DNS;
2850 else if (streq(optarg, "llmnr"))
2851 arg_flags |= SD_RESOLVED_LLMNR;
2852 else if (streq(optarg, "llmnr-ipv4"))
2853 arg_flags |= SD_RESOLVED_LLMNR_IPV4;
2854 else if (streq(optarg, "llmnr-ipv6"))
2855 arg_flags |= SD_RESOLVED_LLMNR_IPV6;
2856 else if (streq(optarg, "mdns"))
2857 arg_flags |= SD_RESOLVED_MDNS;
2858 else if (streq(optarg, "mdns-ipv4"))
2859 arg_flags |= SD_RESOLVED_MDNS_IPV4;
2860 else if (streq(optarg, "mdns-ipv6"))
2861 arg_flags |= SD_RESOLVED_MDNS_IPV6;
2862 else
2863 return log_error_errno(SYNTHETIC_ERRNO(EINVAL),
2864 "Unknown protocol specifier: %s",
2865 optarg);
2866
2867 break;
2868
2869 case ARG_RAW:
2870 if (on_tty())
2871 return log_error_errno(SYNTHETIC_ERRNO(ENOTTY),
2872 "Refusing to write binary data to tty.");
2873
2874 if (optarg == NULL || streq(optarg, "payload"))
2875 arg_raw = RAW_PAYLOAD;
2876 else if (streq(optarg, "packet"))
2877 arg_raw = RAW_PACKET;
2878 else
2879 return log_error_errno(SYNTHETIC_ERRNO(EINVAL),
2880 "Unknown --raw specifier \"%s\".",
2881 optarg);
2882
2883 arg_legend = false;
2884 break;
2885
2886 case ARG_CNAME:
2887 r = parse_boolean(optarg);
2888 if (r < 0)
2889 return log_error_errno(r, "Failed to parse --cname= argument.");
2890 SET_FLAG(arg_flags, SD_RESOLVED_NO_CNAME, r == 0);
2891 break;
2892
2893 case ARG_SERVICE_ADDRESS:
2894 r = parse_boolean(optarg);
2895 if (r < 0)
2896 return log_error_errno(r, "Failed to parse --service-address= argument.");
2897 SET_FLAG(arg_flags, SD_RESOLVED_NO_ADDRESS, r == 0);
2898 break;
2899
2900 case ARG_SERVICE_TXT:
2901 r = parse_boolean(optarg);
2902 if (r < 0)
2903 return log_error_errno(r, "Failed to parse --service-txt= argument.");
2904 SET_FLAG(arg_flags, SD_RESOLVED_NO_TXT, r == 0);
2905 break;
2906
2907 case ARG_SEARCH:
2908 r = parse_boolean(optarg);
2909 if (r < 0)
2910 return log_error_errno(r, "Failed to parse --search argument.");
2911 SET_FLAG(arg_flags, SD_RESOLVED_NO_SEARCH, r == 0);
2912 break;
2913
2914 case ARG_NO_PAGER:
2915 arg_pager_flags |= PAGER_DISABLE;
2916 break;
2917
2918 case '?':
2919 return -EINVAL;
2920
2921 default:
2922 assert_not_reached("Unhandled option");
2923 }
2924
2925 if (arg_type == 0 && arg_class != 0)
2926 return log_error_errno(SYNTHETIC_ERRNO(EINVAL),
2927 "--class= may only be used in conjunction with --type=.");
2928
2929 if (arg_type != 0 && arg_class == 0)
2930 arg_class = DNS_CLASS_IN;
2931
2932 if (arg_class != 0 && arg_type == 0)
2933 arg_type = DNS_TYPE_A;
2934
2935 return 1 /* work to do */;
2936 }
2937
2938 static int native_main(int argc, char *argv[], sd_bus *bus) {
2939
2940 static const Verb verbs[] = {
2941 { "help", VERB_ANY, VERB_ANY, 0, verb_help },
2942 { "status", VERB_ANY, VERB_ANY, VERB_DEFAULT, verb_status },
2943 { "query", 2, VERB_ANY, 0, verb_query },
2944 { "service", 2, 4, 0, verb_service },
2945 { "openpgp", 2, VERB_ANY, 0, verb_openpgp },
2946 { "tlsa", 2, VERB_ANY, 0, verb_tlsa },
2947 { "statistics", VERB_ANY, 1, 0, show_statistics },
2948 { "reset-statistics", VERB_ANY, 1, 0, reset_statistics },
2949 { "flush-caches", VERB_ANY, 1, 0, flush_caches },
2950 { "reset-server-features", VERB_ANY, 1, 0, reset_server_features },
2951 { "dns", VERB_ANY, VERB_ANY, 0, verb_dns },
2952 { "domain", VERB_ANY, VERB_ANY, 0, verb_domain },
2953 { "llmnr", VERB_ANY, 3, 0, verb_llmnr },
2954 { "mdns", VERB_ANY, 3, 0, verb_mdns },
2955 { "dnsovertls", VERB_ANY, 3, 0, verb_dns_over_tls },
2956 { "dnssec", VERB_ANY, 3, 0, verb_dnssec },
2957 { "nta", VERB_ANY, VERB_ANY, 0, verb_nta },
2958 { "revert", VERB_ANY, 2, 0, verb_revert_link },
2959 {}
2960 };
2961
2962 return dispatch_verb(argc, argv, verbs, bus);
2963 }
2964
2965 static int translate(const char *verb, const char *single_arg, size_t num_args, char **args, sd_bus *bus) {
2966 char **fake, **p;
2967 size_t num, i;
2968
2969 assert(verb);
2970 assert(num_args == 0 || args);
2971
2972 num = !!single_arg + num_args + 1;
2973
2974 p = fake = newa0(char *, num + 1);
2975 *p++ = (char *) verb;
2976 if (single_arg)
2977 *p++ = (char *) single_arg;
2978 for (i = 0; i < num_args; i++)
2979 *p++ = args[i];
2980
2981 optind = 0;
2982 return native_main((int) num, fake, bus);
2983 }
2984
2985 static int compat_main(int argc, char *argv[], sd_bus *bus) {
2986 int r = 0;
2987
2988 switch (arg_mode) {
2989 case MODE_RESOLVE_HOST:
2990 case MODE_RESOLVE_RECORD:
2991 return translate("query", NULL, argc - optind, argv + optind, bus);
2992
2993 case MODE_RESOLVE_SERVICE:
2994 return translate("service", NULL, argc - optind, argv + optind, bus);
2995
2996 case MODE_RESOLVE_OPENPGP:
2997 return translate("openpgp", NULL, argc - optind, argv + optind, bus);
2998
2999 case MODE_RESOLVE_TLSA:
3000 return translate("tlsa", arg_service_family, argc - optind, argv + optind, bus);
3001
3002 case MODE_STATISTICS:
3003 return translate("statistics", NULL, 0, NULL, bus);
3004
3005 case MODE_RESET_STATISTICS:
3006 return translate("reset-statistics", NULL, 0, NULL, bus);
3007
3008 case MODE_FLUSH_CACHES:
3009 return translate("flush-caches", NULL, 0, NULL, bus);
3010
3011 case MODE_RESET_SERVER_FEATURES:
3012 return translate("reset-server-features", NULL, 0, NULL, bus);
3013
3014 case MODE_STATUS:
3015 return translate("status", NULL, argc - optind, argv + optind, bus);
3016
3017 case MODE_SET_LINK:
3018 assert(arg_ifname);
3019
3020 if (arg_set_dns) {
3021 r = translate("dns", arg_ifname, strv_length(arg_set_dns), arg_set_dns, bus);
3022 if (r < 0)
3023 return r;
3024 }
3025
3026 if (arg_set_domain) {
3027 r = translate("domain", arg_ifname, strv_length(arg_set_domain), arg_set_domain, bus);
3028 if (r < 0)
3029 return r;
3030 }
3031
3032 if (arg_set_nta) {
3033 r = translate("nta", arg_ifname, strv_length(arg_set_nta), arg_set_nta, bus);
3034 if (r < 0)
3035 return r;
3036 }
3037
3038 if (arg_set_llmnr) {
3039 r = translate("llmnr", arg_ifname, 1, (char **) &arg_set_llmnr, bus);
3040 if (r < 0)
3041 return r;
3042 }
3043
3044 if (arg_set_mdns) {
3045 r = translate("mdns", arg_ifname, 1, (char **) &arg_set_mdns, bus);
3046 if (r < 0)
3047 return r;
3048 }
3049
3050 if (arg_set_dns_over_tls) {
3051 r = translate("dnsovertls", arg_ifname, 1, (char **) &arg_set_dns_over_tls, bus);
3052 if (r < 0)
3053 return r;
3054 }
3055
3056 if (arg_set_dnssec) {
3057 r = translate("dnssec", arg_ifname, 1, (char **) &arg_set_dnssec, bus);
3058 if (r < 0)
3059 return r;
3060 }
3061
3062 return r;
3063
3064 case MODE_REVERT_LINK:
3065 assert(arg_ifname);
3066
3067 return translate("revert", arg_ifname, 0, NULL, bus);
3068
3069 case _MODE_INVALID:
3070 assert_not_reached("invalid mode");
3071 }
3072
3073 return 0;
3074 }
3075
3076 static int run(int argc, char **argv) {
3077 _cleanup_(sd_bus_flush_close_unrefp) sd_bus *bus = NULL;
3078 int r;
3079
3080 setlocale(LC_ALL, "");
3081 log_parse_environment();
3082 log_open();
3083
3084 if (streq(program_invocation_short_name, "resolvconf"))
3085 r = resolvconf_parse_argv(argc, argv);
3086 else if (streq(program_invocation_short_name, "systemd-resolve"))
3087 r = compat_parse_argv(argc, argv);
3088 else
3089 r = native_parse_argv(argc, argv);
3090 if (r <= 0)
3091 return r;
3092
3093 r = sd_bus_open_system(&bus);
3094 if (r < 0)
3095 return log_error_errno(r, "sd_bus_open_system: %m");
3096
3097 if (STR_IN_SET(program_invocation_short_name, "systemd-resolve", "resolvconf"))
3098 return compat_main(argc, argv, bus);
3099
3100 return native_main(argc, argv, bus);
3101 }
3102
3103 DEFINE_MAIN_FUNCTION(run);
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