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Merge pull request #15953 from keszybz/gdb-script
[thirdparty/systemd.git] / src / resolve / resolvectl.c
1 /* SPDX-License-Identifier: LGPL-2.1+ */
2
3 #include <getopt.h>
4 #include <locale.h>
5 #include <net/if.h>
6
7 #include "sd-bus.h"
8 #include "sd-netlink.h"
9
10 #include "af-list.h"
11 #include "alloc-util.h"
12 #include "bus-common-errors.h"
13 #include "bus-error.h"
14 #include "bus-util.h"
15 #include "dns-domain.h"
16 #include "escape.h"
17 #include "format-table.h"
18 #include "format-util.h"
19 #include "gcrypt-util.h"
20 #include "main-func.h"
21 #include "missing_network.h"
22 #include "netlink-util.h"
23 #include "pager.h"
24 #include "parse-util.h"
25 #include "pretty-print.h"
26 #include "resolvconf-compat.h"
27 #include "resolvectl.h"
28 #include "resolved-def.h"
29 #include "resolved-dns-packet.h"
30 #include "socket-netlink.h"
31 #include "sort-util.h"
32 #include "stdio-util.h"
33 #include "string-table.h"
34 #include "strv.h"
35 #include "terminal-util.h"
36 #include "verbs.h"
37
38 static int arg_family = AF_UNSPEC;
39 static int arg_ifindex = 0;
40 static char *arg_ifname = NULL;
41 static uint16_t arg_type = 0;
42 static uint16_t arg_class = 0;
43 static bool arg_legend = true;
44 static uint64_t arg_flags = 0;
45 static PagerFlags arg_pager_flags = 0;
46 bool arg_ifindex_permissive = false; /* If true, don't generate an error if the specified interface index doesn't exist */
47 static const char *arg_service_family = NULL;
48
49 typedef enum RawType {
50 RAW_NONE,
51 RAW_PAYLOAD,
52 RAW_PACKET,
53 } RawType;
54 static RawType arg_raw = RAW_NONE;
55
56 ExecutionMode arg_mode = MODE_RESOLVE_HOST;
57
58 char **arg_set_dns = NULL;
59 char **arg_set_domain = NULL;
60 static const char *arg_set_llmnr = NULL;
61 static const char *arg_set_mdns = NULL;
62 static const char *arg_set_dns_over_tls = NULL;
63 static const char *arg_set_dnssec = NULL;
64 static char **arg_set_nta = NULL;
65
66 STATIC_DESTRUCTOR_REGISTER(arg_ifname, freep);
67 STATIC_DESTRUCTOR_REGISTER(arg_set_dns, strv_freep);
68 STATIC_DESTRUCTOR_REGISTER(arg_set_domain, strv_freep);
69 STATIC_DESTRUCTOR_REGISTER(arg_set_nta, strv_freep);
70
71 typedef enum StatusMode {
72 STATUS_ALL,
73 STATUS_DNS,
74 STATUS_DOMAIN,
75 STATUS_DEFAULT_ROUTE,
76 STATUS_LLMNR,
77 STATUS_MDNS,
78 STATUS_PRIVATE,
79 STATUS_DNSSEC,
80 STATUS_NTA,
81 } StatusMode;
82
83 typedef struct InterfaceInfo {
84 int index;
85 const char *name;
86 } InterfaceInfo;
87
88 static int interface_info_compare(const InterfaceInfo *a, const InterfaceInfo *b) {
89 int r;
90
91 r = CMP(a->index, b->index);
92 if (r != 0)
93 return r;
94
95 return strcmp_ptr(a->name, b->name);
96 }
97
98 int ifname_mangle(const char *s) {
99 _cleanup_free_ char *iface = NULL;
100 const char *dot;
101 int ifi;
102
103 assert(s);
104
105 dot = strchr(s, '.');
106 if (dot) {
107 log_debug("Ignoring protocol specifier '%s'.", dot + 1);
108 iface = strndup(s, dot - s);
109
110 } else
111 iface = strdup(s);
112 if (!iface)
113 return log_oom();
114
115 ifi = resolve_interface(NULL, iface);
116 if (ifi < 0) {
117 if (ifi == -ENODEV && arg_ifindex_permissive) {
118 log_debug("Interface '%s' not found, but -f specified, ignoring.", iface);
119 return 0; /* done */
120 }
121
122 return log_error_errno(ifi, "Failed to resolve interface \"%s\": %m", iface);
123 }
124
125 if (arg_ifindex > 0 && arg_ifindex != ifi)
126 return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "Specified multiple different interfaces. Refusing.");
127
128 arg_ifindex = ifi;
129 free_and_replace(arg_ifname, iface);
130
131 return 1;
132 }
133
134 static void print_source(uint64_t flags, usec_t rtt) {
135 char rtt_str[FORMAT_TIMESTAMP_MAX];
136
137 if (!arg_legend)
138 return;
139
140 if (flags == 0)
141 return;
142
143 printf("\n%s-- Information acquired via", ansi_grey());
144
145 if (flags != 0)
146 printf(" protocol%s%s%s%s%s",
147 flags & SD_RESOLVED_DNS ? " DNS" :"",
148 flags & SD_RESOLVED_LLMNR_IPV4 ? " LLMNR/IPv4" : "",
149 flags & SD_RESOLVED_LLMNR_IPV6 ? " LLMNR/IPv6" : "",
150 flags & SD_RESOLVED_MDNS_IPV4 ? " mDNS/IPv4" : "",
151 flags & SD_RESOLVED_MDNS_IPV6 ? " mDNS/IPv6" : "");
152
153 assert_se(format_timespan(rtt_str, sizeof(rtt_str), rtt, 100));
154
155 printf(" in %s.%s\n"
156 "%s-- Data is authenticated: %s%s\n",
157 rtt_str, ansi_normal(),
158 ansi_grey(), yes_no(flags & SD_RESOLVED_AUTHENTICATED), ansi_normal());
159 }
160
161 static void print_ifindex_comment(int printed_so_far, int ifindex) {
162 char ifname[IF_NAMESIZE + 1];
163
164 if (ifindex <= 0)
165 return;
166
167 if (!format_ifname(ifindex, ifname))
168 log_warning_errno(errno, "Failed to resolve interface name for index %i, ignoring: %m", ifindex);
169 else
170 printf("%*s%s-- link: %s%s",
171 60 > printed_so_far ? 60 - printed_so_far : 0, " ", /* Align comment to the 60th column */
172 ansi_grey(), ifname, ansi_normal());
173 }
174
175 static int resolve_host(sd_bus *bus, const char *name) {
176 _cleanup_(sd_bus_message_unrefp) sd_bus_message *req = NULL, *reply = NULL;
177 _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
178 const char *canonical = NULL;
179 unsigned c = 0;
180 uint64_t flags;
181 usec_t ts;
182 int r;
183
184 assert(name);
185
186 log_debug("Resolving %s (family %s, interface %s).", name, af_to_name(arg_family) ?: "*", isempty(arg_ifname) ? "*" : arg_ifname);
187
188 r = bus_message_new_method_call(bus, &req, bus_resolve_mgr, "ResolveHostname");
189 if (r < 0)
190 return bus_log_create_error(r);
191
192 r = sd_bus_message_append(req, "isit", arg_ifindex, name, arg_family, arg_flags);
193 if (r < 0)
194 return bus_log_create_error(r);
195
196 ts = now(CLOCK_MONOTONIC);
197
198 r = sd_bus_call(bus, req, SD_RESOLVED_QUERY_TIMEOUT_USEC, &error, &reply);
199 if (r < 0)
200 return log_error_errno(r, "%s: resolve call failed: %s", name, bus_error_message(&error, r));
201
202 ts = now(CLOCK_MONOTONIC) - ts;
203
204 r = sd_bus_message_enter_container(reply, 'a', "(iiay)");
205 if (r < 0)
206 return bus_log_parse_error(r);
207
208 while ((r = sd_bus_message_enter_container(reply, 'r', "iiay")) > 0) {
209 _cleanup_free_ char *pretty = NULL;
210 int ifindex, family, k;
211 const void *a;
212 size_t sz;
213
214 assert_cc(sizeof(int) == sizeof(int32_t));
215
216 r = sd_bus_message_read(reply, "ii", &ifindex, &family);
217 if (r < 0)
218 return bus_log_parse_error(r);
219
220 r = sd_bus_message_read_array(reply, 'y', &a, &sz);
221 if (r < 0)
222 return bus_log_parse_error(r);
223
224 r = sd_bus_message_exit_container(reply);
225 if (r < 0)
226 return bus_log_parse_error(r);
227
228 if (!IN_SET(family, AF_INET, AF_INET6)) {
229 log_debug("%s: skipping entry with family %d (%s)", name, family, af_to_name(family) ?: "unknown");
230 continue;
231 }
232
233 if (sz != FAMILY_ADDRESS_SIZE(family)) {
234 log_error("%s: systemd-resolved returned address of invalid size %zu for family %s", name, sz, af_to_name(family) ?: "unknown");
235 return -EINVAL;
236 }
237
238 r = in_addr_ifindex_to_string(family, a, ifindex, &pretty);
239 if (r < 0)
240 return log_error_errno(r, "Failed to print address for %s: %m", name);
241
242 k = printf("%*s%s %s%s%s",
243 (int) strlen(name), c == 0 ? name : "", c == 0 ? ":" : " ",
244 ansi_highlight(), pretty, ansi_normal());
245
246 print_ifindex_comment(k, ifindex);
247 fputc('\n', stdout);
248
249 c++;
250 }
251 if (r < 0)
252 return bus_log_parse_error(r);
253
254 r = sd_bus_message_exit_container(reply);
255 if (r < 0)
256 return bus_log_parse_error(r);
257
258 r = sd_bus_message_read(reply, "st", &canonical, &flags);
259 if (r < 0)
260 return bus_log_parse_error(r);
261
262 if (!streq(name, canonical))
263 printf("%*s%s (%s)\n",
264 (int) strlen(name), c == 0 ? name : "", c == 0 ? ":" : " ",
265 canonical);
266
267 if (c == 0) {
268 log_error("%s: no addresses found", name);
269 return -ESRCH;
270 }
271
272 print_source(flags, ts);
273
274 return 0;
275 }
276
277 static int resolve_address(sd_bus *bus, int family, const union in_addr_union *address, int ifindex) {
278 _cleanup_(sd_bus_message_unrefp) sd_bus_message *req = NULL, *reply = NULL;
279 _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
280 _cleanup_free_ char *pretty = NULL;
281 uint64_t flags;
282 unsigned c = 0;
283 usec_t ts;
284 int r;
285
286 assert(bus);
287 assert(IN_SET(family, AF_INET, AF_INET6));
288 assert(address);
289
290 if (ifindex <= 0)
291 ifindex = arg_ifindex;
292
293 r = in_addr_ifindex_to_string(family, address, ifindex, &pretty);
294 if (r < 0)
295 return log_oom();
296
297 log_debug("Resolving %s.", pretty);
298
299 r = bus_message_new_method_call(bus, &req, bus_resolve_mgr, "ResolveAddress");
300 if (r < 0)
301 return bus_log_create_error(r);
302
303 r = sd_bus_message_append(req, "ii", ifindex, family);
304 if (r < 0)
305 return bus_log_create_error(r);
306
307 r = sd_bus_message_append_array(req, 'y', address, FAMILY_ADDRESS_SIZE(family));
308 if (r < 0)
309 return bus_log_create_error(r);
310
311 r = sd_bus_message_append(req, "t", arg_flags);
312 if (r < 0)
313 return bus_log_create_error(r);
314
315 ts = now(CLOCK_MONOTONIC);
316
317 r = sd_bus_call(bus, req, SD_RESOLVED_QUERY_TIMEOUT_USEC, &error, &reply);
318 if (r < 0)
319 return log_error_errno(r, "%s: resolve call failed: %s", pretty, bus_error_message(&error, r));
320
321 ts = now(CLOCK_MONOTONIC) - ts;
322
323 r = sd_bus_message_enter_container(reply, 'a', "(is)");
324 if (r < 0)
325 return bus_log_create_error(r);
326
327 while ((r = sd_bus_message_enter_container(reply, 'r', "is")) > 0) {
328 const char *n;
329 int k;
330
331 assert_cc(sizeof(int) == sizeof(int32_t));
332
333 r = sd_bus_message_read(reply, "is", &ifindex, &n);
334 if (r < 0)
335 return r;
336
337 r = sd_bus_message_exit_container(reply);
338 if (r < 0)
339 return r;
340
341 k = printf("%*s%s %s%s%s",
342 (int) strlen(pretty), c == 0 ? pretty : "",
343 c == 0 ? ":" : " ",
344 ansi_highlight(), n, ansi_normal());
345
346 print_ifindex_comment(k, ifindex);
347 fputc('\n', stdout);
348
349 c++;
350 }
351 if (r < 0)
352 return bus_log_parse_error(r);
353
354 r = sd_bus_message_exit_container(reply);
355 if (r < 0)
356 return bus_log_parse_error(r);
357
358 r = sd_bus_message_read(reply, "t", &flags);
359 if (r < 0)
360 return bus_log_parse_error(r);
361
362 if (c == 0) {
363 log_error("%s: no names found", pretty);
364 return -ESRCH;
365 }
366
367 print_source(flags, ts);
368
369 return 0;
370 }
371
372 static int output_rr_packet(const void *d, size_t l, int ifindex) {
373 _cleanup_(dns_resource_record_unrefp) DnsResourceRecord *rr = NULL;
374 _cleanup_(dns_packet_unrefp) DnsPacket *p = NULL;
375 int r;
376
377 r = dns_packet_new(&p, DNS_PROTOCOL_DNS, 0, DNS_PACKET_SIZE_MAX);
378 if (r < 0)
379 return log_oom();
380
381 p->refuse_compression = true;
382
383 r = dns_packet_append_blob(p, d, l, NULL);
384 if (r < 0)
385 return log_oom();
386
387 r = dns_packet_read_rr(p, &rr, NULL, NULL);
388 if (r < 0)
389 return log_error_errno(r, "Failed to parse RR: %m");
390
391 if (arg_raw == RAW_PAYLOAD) {
392 void *data;
393 ssize_t k;
394
395 k = dns_resource_record_payload(rr, &data);
396 if (k < 0)
397 return log_error_errno(k, "Cannot dump RR: %m");
398 fwrite(data, 1, k, stdout);
399 } else {
400 const char *s;
401 int k;
402
403 s = dns_resource_record_to_string(rr);
404 if (!s)
405 return log_oom();
406
407 k = printf("%s", s);
408 print_ifindex_comment(k, ifindex);
409 fputc('\n', stdout);
410 }
411
412 return 0;
413 }
414
415 static int resolve_record(sd_bus *bus, const char *name, uint16_t class, uint16_t type, bool warn_missing) {
416 _cleanup_(sd_bus_message_unrefp) sd_bus_message *req = NULL, *reply = NULL;
417 _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
418 unsigned n = 0;
419 uint64_t flags;
420 int r;
421 usec_t ts;
422 bool needs_authentication = false;
423
424 assert(name);
425
426 log_debug("Resolving %s %s %s (interface %s).", name, dns_class_to_string(class), dns_type_to_string(type), isempty(arg_ifname) ? "*" : arg_ifname);
427
428 r = bus_message_new_method_call(bus, &req, bus_resolve_mgr, "ResolveRecord");
429 if (r < 0)
430 return bus_log_create_error(r);
431
432 r = sd_bus_message_append(req, "isqqt", arg_ifindex, name, class, type, arg_flags);
433 if (r < 0)
434 return bus_log_create_error(r);
435
436 ts = now(CLOCK_MONOTONIC);
437
438 r = sd_bus_call(bus, req, SD_RESOLVED_QUERY_TIMEOUT_USEC, &error, &reply);
439 if (r < 0) {
440 if (warn_missing || r != -ENXIO)
441 log_error("%s: resolve call failed: %s", name, bus_error_message(&error, r));
442 return r;
443 }
444
445 ts = now(CLOCK_MONOTONIC) - ts;
446
447 r = sd_bus_message_enter_container(reply, 'a', "(iqqay)");
448 if (r < 0)
449 return bus_log_parse_error(r);
450
451 while ((r = sd_bus_message_enter_container(reply, 'r', "iqqay")) > 0) {
452 uint16_t c, t;
453 int ifindex;
454 const void *d;
455 size_t l;
456
457 assert_cc(sizeof(int) == sizeof(int32_t));
458
459 r = sd_bus_message_read(reply, "iqq", &ifindex, &c, &t);
460 if (r < 0)
461 return bus_log_parse_error(r);
462
463 r = sd_bus_message_read_array(reply, 'y', &d, &l);
464 if (r < 0)
465 return bus_log_parse_error(r);
466
467 r = sd_bus_message_exit_container(reply);
468 if (r < 0)
469 return bus_log_parse_error(r);
470
471 if (arg_raw == RAW_PACKET) {
472 uint64_t u64 = htole64(l);
473
474 fwrite(&u64, sizeof(u64), 1, stdout);
475 fwrite(d, 1, l, stdout);
476 } else {
477 r = output_rr_packet(d, l, ifindex);
478 if (r < 0)
479 return r;
480 }
481
482 if (dns_type_needs_authentication(t))
483 needs_authentication = true;
484
485 n++;
486 }
487 if (r < 0)
488 return bus_log_parse_error(r);
489
490 r = sd_bus_message_exit_container(reply);
491 if (r < 0)
492 return bus_log_parse_error(r);
493
494 r = sd_bus_message_read(reply, "t", &flags);
495 if (r < 0)
496 return bus_log_parse_error(r);
497
498 if (n == 0) {
499 if (warn_missing)
500 log_error("%s: no records found", name);
501 return -ESRCH;
502 }
503
504 print_source(flags, ts);
505
506 if ((flags & SD_RESOLVED_AUTHENTICATED) == 0 && needs_authentication) {
507 fflush(stdout);
508
509 fprintf(stderr, "\n%s"
510 "WARNING: The resources shown contain cryptographic key data which could not be\n"
511 " authenticated. It is not suitable to authenticate any communication.\n"
512 " This is usually indication that DNSSEC authentication was not enabled\n"
513 " or is not available for the selected protocol or DNS servers.%s\n",
514 ansi_highlight_red(),
515 ansi_normal());
516 }
517
518 return 0;
519 }
520
521 static int resolve_rfc4501(sd_bus *bus, const char *name) {
522 uint16_t type = 0, class = 0;
523 const char *p, *q, *n;
524 int r;
525
526 assert(bus);
527 assert(name);
528 assert(startswith(name, "dns:"));
529
530 /* Parse RFC 4501 dns: URIs */
531
532 p = name + 4;
533
534 if (p[0] == '/') {
535 const char *e;
536
537 if (p[1] != '/')
538 goto invalid;
539
540 e = strchr(p + 2, '/');
541 if (!e)
542 goto invalid;
543
544 if (e != p + 2)
545 log_warning("DNS authority specification not supported; ignoring specified authority.");
546
547 p = e + 1;
548 }
549
550 q = strchr(p, '?');
551 if (q) {
552 n = strndupa(p, q - p);
553 q++;
554
555 for (;;) {
556 const char *f;
557
558 f = startswith_no_case(q, "class=");
559 if (f) {
560 _cleanup_free_ char *t = NULL;
561 const char *e;
562
563 if (class != 0)
564 return log_error_errno(SYNTHETIC_ERRNO(EINVAL),
565 "DNS class specified twice.");
566
567 e = strchrnul(f, ';');
568 t = strndup(f, e - f);
569 if (!t)
570 return log_oom();
571
572 r = dns_class_from_string(t);
573 if (r < 0)
574 return log_error_errno(SYNTHETIC_ERRNO(EINVAL),
575 "Unknown DNS class %s.", t);
576
577 class = r;
578
579 if (*e == ';') {
580 q = e + 1;
581 continue;
582 }
583
584 break;
585 }
586
587 f = startswith_no_case(q, "type=");
588 if (f) {
589 _cleanup_free_ char *t = NULL;
590 const char *e;
591
592 if (type != 0)
593 return log_error_errno(SYNTHETIC_ERRNO(EINVAL),
594 "DNS type specified twice.");
595
596 e = strchrnul(f, ';');
597 t = strndup(f, e - f);
598 if (!t)
599 return log_oom();
600
601 r = dns_type_from_string(t);
602 if (r < 0)
603 return log_error_errno(SYNTHETIC_ERRNO(EINVAL),
604 "Unknown DNS type %s.", t);
605
606 type = r;
607
608 if (*e == ';') {
609 q = e + 1;
610 continue;
611 }
612
613 break;
614 }
615
616 goto invalid;
617 }
618 } else
619 n = p;
620
621 if (class == 0)
622 class = arg_class ?: DNS_CLASS_IN;
623 if (type == 0)
624 type = arg_type ?: DNS_TYPE_A;
625
626 return resolve_record(bus, n, class, type, true);
627
628 invalid:
629 return log_error_errno(SYNTHETIC_ERRNO(EINVAL),
630 "Invalid DNS URI: %s", name);
631 }
632
633 static int verb_query(int argc, char **argv, void *userdata) {
634 sd_bus *bus = userdata;
635 char **p;
636 int q, r = 0;
637
638 if (arg_type != 0)
639 STRV_FOREACH(p, argv + 1) {
640 q = resolve_record(bus, *p, arg_class, arg_type, true);
641 if (q < 0)
642 r = q;
643 }
644
645 else
646 STRV_FOREACH(p, argv + 1) {
647 if (startswith(*p, "dns:"))
648 q = resolve_rfc4501(bus, *p);
649 else {
650 int family, ifindex;
651 union in_addr_union a;
652
653 q = in_addr_ifindex_from_string_auto(*p, &family, &a, &ifindex);
654 if (q >= 0)
655 q = resolve_address(bus, family, &a, ifindex);
656 else
657 q = resolve_host(bus, *p);
658 }
659 if (q < 0)
660 r = q;
661 }
662
663 return r;
664 }
665
666 static int resolve_service(sd_bus *bus, const char *name, const char *type, const char *domain) {
667 const char *canonical_name, *canonical_type, *canonical_domain;
668 _cleanup_(sd_bus_message_unrefp) sd_bus_message *req = NULL, *reply = NULL;
669 _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
670 size_t indent, sz;
671 uint64_t flags;
672 const char *p;
673 unsigned c;
674 usec_t ts;
675 int r;
676
677 assert(bus);
678 assert(domain);
679
680 name = empty_to_null(name);
681 type = empty_to_null(type);
682
683 if (name)
684 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);
685 else if (type)
686 log_debug("Resolving service type %s of %s (family %s, interface %s).", type, domain, af_to_name(arg_family) ?: "*", isempty(arg_ifname) ? "*" : arg_ifname);
687 else
688 log_debug("Resolving service type %s (family %s, interface %s).", domain, af_to_name(arg_family) ?: "*", isempty(arg_ifname) ? "*" : arg_ifname);
689
690 r = bus_message_new_method_call(bus, &req, bus_resolve_mgr, "ResolveService");
691 if (r < 0)
692 return bus_log_create_error(r);
693
694 r = sd_bus_message_append(req, "isssit", arg_ifindex, name, type, domain, arg_family, arg_flags);
695 if (r < 0)
696 return bus_log_create_error(r);
697
698 ts = now(CLOCK_MONOTONIC);
699
700 r = sd_bus_call(bus, req, SD_RESOLVED_QUERY_TIMEOUT_USEC, &error, &reply);
701 if (r < 0)
702 return log_error_errno(r, "Resolve call failed: %s", bus_error_message(&error, r));
703
704 ts = now(CLOCK_MONOTONIC) - ts;
705
706 r = sd_bus_message_enter_container(reply, 'a', "(qqqsa(iiay)s)");
707 if (r < 0)
708 return bus_log_parse_error(r);
709
710 indent =
711 (name ? strlen(name) + 1 : 0) +
712 (type ? strlen(type) + 1 : 0) +
713 strlen(domain) + 2;
714
715 c = 0;
716 while ((r = sd_bus_message_enter_container(reply, 'r', "qqqsa(iiay)s")) > 0) {
717 uint16_t priority, weight, port;
718 const char *hostname, *canonical;
719
720 r = sd_bus_message_read(reply, "qqqs", &priority, &weight, &port, &hostname);
721 if (r < 0)
722 return bus_log_parse_error(r);
723
724 if (name)
725 printf("%*s%s", (int) strlen(name), c == 0 ? name : "", c == 0 ? "/" : " ");
726 if (type)
727 printf("%*s%s", (int) strlen(type), c == 0 ? type : "", c == 0 ? "/" : " ");
728
729 printf("%*s%s %s:%u [priority=%u, weight=%u]\n",
730 (int) strlen(domain), c == 0 ? domain : "",
731 c == 0 ? ":" : " ",
732 hostname, port,
733 priority, weight);
734
735 r = sd_bus_message_enter_container(reply, 'a', "(iiay)");
736 if (r < 0)
737 return bus_log_parse_error(r);
738
739 while ((r = sd_bus_message_enter_container(reply, 'r', "iiay")) > 0) {
740 _cleanup_free_ char *pretty = NULL;
741 int ifindex, family, k;
742 const void *a;
743
744 assert_cc(sizeof(int) == sizeof(int32_t));
745
746 r = sd_bus_message_read(reply, "ii", &ifindex, &family);
747 if (r < 0)
748 return bus_log_parse_error(r);
749
750 r = sd_bus_message_read_array(reply, 'y', &a, &sz);
751 if (r < 0)
752 return bus_log_parse_error(r);
753
754 r = sd_bus_message_exit_container(reply);
755 if (r < 0)
756 return bus_log_parse_error(r);
757
758 if (!IN_SET(family, AF_INET, AF_INET6)) {
759 log_debug("%s: skipping entry with family %d (%s)", name, family, af_to_name(family) ?: "unknown");
760 continue;
761 }
762
763 if (sz != FAMILY_ADDRESS_SIZE(family)) {
764 log_error("%s: systemd-resolved returned address of invalid size %zu for family %s", name, sz, af_to_name(family) ?: "unknown");
765 return -EINVAL;
766 }
767
768 r = in_addr_ifindex_to_string(family, a, ifindex, &pretty);
769 if (r < 0)
770 return log_error_errno(r, "Failed to print address for %s: %m", name);
771
772 k = printf("%*s%s", (int) indent, "", pretty);
773 print_ifindex_comment(k, ifindex);
774 fputc('\n', stdout);
775 }
776 if (r < 0)
777 return bus_log_parse_error(r);
778
779 r = sd_bus_message_exit_container(reply);
780 if (r < 0)
781 return bus_log_parse_error(r);
782
783 r = sd_bus_message_read(reply, "s", &canonical);
784 if (r < 0)
785 return bus_log_parse_error(r);
786
787 if (!streq(hostname, canonical))
788 printf("%*s(%s)\n", (int) indent, "", canonical);
789
790 r = sd_bus_message_exit_container(reply);
791 if (r < 0)
792 return bus_log_parse_error(r);
793
794 c++;
795 }
796 if (r < 0)
797 return bus_log_parse_error(r);
798
799 r = sd_bus_message_exit_container(reply);
800 if (r < 0)
801 return bus_log_parse_error(r);
802
803 r = sd_bus_message_enter_container(reply, 'a', "ay");
804 if (r < 0)
805 return bus_log_parse_error(r);
806
807 while ((r = sd_bus_message_read_array(reply, 'y', (const void**) &p, &sz)) > 0) {
808 _cleanup_free_ char *escaped = NULL;
809
810 escaped = cescape_length(p, sz);
811 if (!escaped)
812 return log_oom();
813
814 printf("%*s%s\n", (int) indent, "", escaped);
815 }
816 if (r < 0)
817 return bus_log_parse_error(r);
818
819 r = sd_bus_message_exit_container(reply);
820 if (r < 0)
821 return bus_log_parse_error(r);
822
823 r = sd_bus_message_read(reply, "ssst", &canonical_name, &canonical_type, &canonical_domain, &flags);
824 if (r < 0)
825 return bus_log_parse_error(r);
826
827 canonical_name = empty_to_null(canonical_name);
828 canonical_type = empty_to_null(canonical_type);
829
830 if (!streq_ptr(name, canonical_name) ||
831 !streq_ptr(type, canonical_type) ||
832 !streq_ptr(domain, canonical_domain)) {
833
834 printf("%*s(", (int) indent, "");
835
836 if (canonical_name)
837 printf("%s/", canonical_name);
838 if (canonical_type)
839 printf("%s/", canonical_type);
840
841 printf("%s)\n", canonical_domain);
842 }
843
844 print_source(flags, ts);
845
846 return 0;
847 }
848
849 static int verb_service(int argc, char **argv, void *userdata) {
850 sd_bus *bus = userdata;
851
852 if (argc == 2)
853 return resolve_service(bus, NULL, NULL, argv[1]);
854 else if (argc == 3)
855 return resolve_service(bus, NULL, argv[1], argv[2]);
856 else
857 return resolve_service(bus, argv[1], argv[2], argv[3]);
858 }
859
860 static int resolve_openpgp(sd_bus *bus, const char *address) {
861 const char *domain, *full;
862 int r;
863 _cleanup_free_ char *hashed = NULL;
864
865 assert(bus);
866 assert(address);
867
868 domain = strrchr(address, '@');
869 if (!domain)
870 return log_error_errno(SYNTHETIC_ERRNO(EINVAL),
871 "Address does not contain '@': \"%s\"", address);
872 if (domain == address || domain[1] == '\0')
873 return log_error_errno(SYNTHETIC_ERRNO(EINVAL),
874 "Address starts or ends with '@': \"%s\"", address);
875 domain++;
876
877 r = string_hashsum_sha256(address, domain - 1 - address, &hashed);
878 if (r < 0)
879 return log_error_errno(r, "Hashing failed: %m");
880
881 strshorten(hashed, 56);
882
883 full = strjoina(hashed, "._openpgpkey.", domain);
884 log_debug("Looking up \"%s\".", full);
885
886 r = resolve_record(bus, full,
887 arg_class ?: DNS_CLASS_IN,
888 arg_type ?: DNS_TYPE_OPENPGPKEY, false);
889
890 if (IN_SET(r, -ENXIO, -ESRCH)) { /* NXDOMAIN or NODATA? */
891 hashed = mfree(hashed);
892 r = string_hashsum_sha224(address, domain - 1 - address, &hashed);
893 if (r < 0)
894 return log_error_errno(r, "Hashing failed: %m");
895
896 full = strjoina(hashed, "._openpgpkey.", domain);
897 log_debug("Looking up \"%s\".", full);
898
899 return resolve_record(bus, full,
900 arg_class ?: DNS_CLASS_IN,
901 arg_type ?: DNS_TYPE_OPENPGPKEY, true);
902 }
903
904 return r;
905 }
906
907 static int verb_openpgp(int argc, char **argv, void *userdata) {
908 sd_bus *bus = userdata;
909 char **p;
910 int q, r = 0;
911
912 STRV_FOREACH(p, argv + 1) {
913 q = resolve_openpgp(bus, *p);
914 if (q < 0)
915 r = q;
916 }
917
918 return r;
919 }
920
921 static int resolve_tlsa(sd_bus *bus, const char *family, const char *address) {
922 const char *port;
923 uint16_t port_num = 443;
924 _cleanup_free_ char *full = NULL;
925 int r;
926
927 assert(bus);
928 assert(address);
929
930 port = strrchr(address, ':');
931 if (port) {
932 r = parse_ip_port(port + 1, &port_num);
933 if (r < 0)
934 return log_error_errno(r, "Invalid port \"%s\".", port + 1);
935
936 address = strndupa(address, port - address);
937 }
938
939 r = asprintf(&full, "_%u._%s.%s",
940 port_num,
941 family,
942 address);
943 if (r < 0)
944 return log_oom();
945
946 log_debug("Looking up \"%s\".", full);
947
948 return resolve_record(bus, full,
949 arg_class ?: DNS_CLASS_IN,
950 arg_type ?: DNS_TYPE_TLSA, true);
951 }
952
953 static bool service_family_is_valid(const char *s) {
954 return STR_IN_SET(s, "tcp", "udp", "sctp");
955 }
956
957 static int verb_tlsa(int argc, char **argv, void *userdata) {
958 sd_bus *bus = userdata;
959 char **p, **args = argv + 1;
960 const char *family = "tcp";
961 int q, r = 0;
962
963 if (service_family_is_valid(argv[1])) {
964 family = argv[1];
965 args++;
966 }
967
968 STRV_FOREACH(p, args) {
969 q = resolve_tlsa(bus, family, *p);
970 if (q < 0)
971 r = q;
972 }
973
974 return r;
975 }
976
977 static int show_statistics(int argc, char **argv, void *userdata) {
978 _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
979 _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL;
980 _cleanup_(table_unrefp) Table *table = NULL;
981 sd_bus *bus = userdata;
982 uint64_t n_current_transactions, n_total_transactions,
983 cache_size, n_cache_hit, n_cache_miss,
984 n_dnssec_secure, n_dnssec_insecure, n_dnssec_bogus, n_dnssec_indeterminate;
985 int r, dnssec_supported;
986
987 assert(bus);
988
989 r = bus_get_property_trivial(bus, bus_resolve_mgr, "DNSSECSupported", &error, 'b', &dnssec_supported);
990 if (r < 0)
991 return log_error_errno(r, "Failed to get DNSSEC supported state: %s", bus_error_message(&error, r));
992
993 printf("DNSSEC supported by current servers: %s%s%s\n\n",
994 ansi_highlight(),
995 yes_no(dnssec_supported),
996 ansi_normal());
997
998 r = bus_get_property(bus, bus_resolve_mgr, "TransactionStatistics", &error, &reply, "(tt)");
999 if (r < 0)
1000 return log_error_errno(r, "Failed to get transaction statistics: %s", bus_error_message(&error, r));
1001
1002 r = sd_bus_message_read(reply, "(tt)",
1003 &n_current_transactions,
1004 &n_total_transactions);
1005 if (r < 0)
1006 return bus_log_parse_error(r);
1007
1008 reply = sd_bus_message_unref(reply);
1009
1010 r = bus_get_property(bus, bus_resolve_mgr, "CacheStatistics", &error, &reply, "(ttt)");
1011 if (r < 0)
1012 return log_error_errno(r, "Failed to get cache statistics: %s", bus_error_message(&error, r));
1013
1014 r = sd_bus_message_read(reply, "(ttt)",
1015 &cache_size,
1016 &n_cache_hit,
1017 &n_cache_miss);
1018 if (r < 0)
1019 return bus_log_parse_error(r);
1020
1021 reply = sd_bus_message_unref(reply);
1022
1023 r = bus_get_property(bus, bus_resolve_mgr, "DNSSECStatistics", &error, &reply, "(tttt)");
1024 if (r < 0)
1025 return log_error_errno(r, "Failed to get DNSSEC statistics: %s", bus_error_message(&error, r));
1026
1027 r = sd_bus_message_read(reply, "(tttt)",
1028 &n_dnssec_secure,
1029 &n_dnssec_insecure,
1030 &n_dnssec_bogus,
1031 &n_dnssec_indeterminate);
1032 if (r < 0)
1033 return bus_log_parse_error(r);
1034
1035 table = table_new("key", "value");
1036 if (!table)
1037 return log_oom();
1038
1039 table_set_header(table, false);
1040
1041 r = table_add_many(table,
1042 TABLE_STRING, "Transactions",
1043 TABLE_SET_COLOR, ansi_highlight(),
1044 TABLE_EMPTY,
1045 TABLE_STRING, "Current Transactions:",
1046 TABLE_SET_ALIGN_PERCENT, 100,
1047 TABLE_UINT64, n_current_transactions,
1048 TABLE_STRING, "Total Transactions:",
1049 TABLE_UINT64, n_total_transactions,
1050 TABLE_EMPTY, TABLE_EMPTY,
1051 TABLE_STRING, "Cache",
1052 TABLE_SET_COLOR, ansi_highlight(),
1053 TABLE_SET_ALIGN_PERCENT, 0,
1054 TABLE_EMPTY,
1055 TABLE_STRING, "Current Cache Size:",
1056 TABLE_SET_ALIGN_PERCENT, 100,
1057 TABLE_UINT64, cache_size,
1058 TABLE_STRING, "Cache Hits:",
1059 TABLE_UINT64, n_cache_hit,
1060 TABLE_STRING, "Cache Misses:",
1061 TABLE_UINT64, n_cache_miss,
1062 TABLE_EMPTY, TABLE_EMPTY,
1063 TABLE_STRING, "DNSSEC Verdicts",
1064 TABLE_SET_COLOR, ansi_highlight(),
1065 TABLE_SET_ALIGN_PERCENT, 0,
1066 TABLE_EMPTY,
1067 TABLE_STRING, "Secure:",
1068 TABLE_SET_ALIGN_PERCENT, 100,
1069 TABLE_UINT64, n_dnssec_secure,
1070 TABLE_STRING, "Insecure:",
1071 TABLE_UINT64, n_dnssec_insecure,
1072 TABLE_STRING, "Bogus:",
1073 TABLE_UINT64, n_dnssec_bogus,
1074 TABLE_STRING, "Indeterminate:",
1075 TABLE_UINT64, n_dnssec_indeterminate);
1076 if (r < 0)
1077 table_log_add_error(r);
1078
1079 r = table_print(table, NULL);
1080 if (r < 0)
1081 return log_error_errno(r, "Failed to print table: %m");
1082
1083 return 0;
1084 }
1085
1086 static int reset_statistics(int argc, char **argv, void *userdata) {
1087 _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
1088 sd_bus *bus = userdata;
1089 int r;
1090
1091 r = bus_call_method(bus, bus_resolve_mgr, "ResetStatistics", &error, NULL, NULL);
1092 if (r < 0)
1093 return log_error_errno(r, "Failed to reset statistics: %s", bus_error_message(&error, r));
1094
1095 return 0;
1096 }
1097
1098 static int flush_caches(int argc, char **argv, void *userdata) {
1099 _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
1100 sd_bus *bus = userdata;
1101 int r;
1102
1103 r = bus_call_method(bus, bus_resolve_mgr, "FlushCaches", &error, NULL, NULL);
1104 if (r < 0)
1105 return log_error_errno(r, "Failed to flush caches: %s", bus_error_message(&error, r));
1106
1107 return 0;
1108 }
1109
1110 static int reset_server_features(int argc, char **argv, void *userdata) {
1111 _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
1112 sd_bus *bus = userdata;
1113 int r;
1114
1115 r = bus_call_method(bus, bus_resolve_mgr, "ResetServerFeatures", &error, NULL, NULL);
1116 if (r < 0)
1117 return log_error_errno(r, "Failed to reset server features: %s", bus_error_message(&error, r));
1118
1119 return 0;
1120 }
1121
1122 static int read_dns_server_one(sd_bus_message *m, bool with_ifindex, char **ret) {
1123 _cleanup_free_ char *pretty = NULL;
1124 int ifindex, family, r;
1125 const void *a;
1126 size_t sz;
1127
1128 assert(m);
1129 assert(ret);
1130
1131 r = sd_bus_message_enter_container(m, 'r', with_ifindex ? "iiay" : "iay");
1132 if (r <= 0)
1133 return r;
1134
1135 if (with_ifindex) {
1136 r = sd_bus_message_read(m, "i", &ifindex);
1137 if (r < 0)
1138 return r;
1139 }
1140
1141 r = sd_bus_message_read(m, "i", &family);
1142 if (r < 0)
1143 return r;
1144
1145 r = sd_bus_message_read_array(m, 'y', &a, &sz);
1146 if (r < 0)
1147 return r;
1148
1149 r = sd_bus_message_exit_container(m);
1150 if (r < 0)
1151 return r;
1152
1153 if (with_ifindex && ifindex != 0) {
1154 /* only show the global ones here */
1155 *ret = NULL;
1156 return 1;
1157 }
1158
1159 if (!IN_SET(family, AF_INET, AF_INET6)) {
1160 log_debug("Unexpected family, ignoring: %i", family);
1161
1162 *ret = NULL;
1163 return 1;
1164 }
1165
1166 if (sz != FAMILY_ADDRESS_SIZE(family)) {
1167 log_debug("Address size mismatch, ignoring.");
1168
1169 *ret = NULL;
1170 return 1;
1171 }
1172
1173 r = in_addr_to_string(family, a, &pretty);
1174 if (r < 0)
1175 return r;
1176
1177 *ret = TAKE_PTR(pretty);
1178
1179 return 1;
1180 }
1181
1182 static int map_link_dns_servers(sd_bus *bus, const char *member, sd_bus_message *m, sd_bus_error *error, void *userdata) {
1183 char ***l = userdata;
1184 int r;
1185
1186 assert(bus);
1187 assert(member);
1188 assert(m);
1189 assert(l);
1190
1191 r = sd_bus_message_enter_container(m, 'a', "(iay)");
1192 if (r < 0)
1193 return r;
1194
1195 for (;;) {
1196 _cleanup_free_ char *pretty = NULL;
1197
1198 r = read_dns_server_one(m, false, &pretty);
1199 if (r < 0)
1200 return r;
1201 if (r == 0)
1202 break;
1203
1204 if (isempty(pretty))
1205 continue;
1206
1207 r = strv_consume(l, TAKE_PTR(pretty));
1208 if (r < 0)
1209 return r;
1210 }
1211
1212 r = sd_bus_message_exit_container(m);
1213 if (r < 0)
1214 return r;
1215
1216 return 0;
1217 }
1218
1219 static int map_link_current_dns_server(sd_bus *bus, const char *member, sd_bus_message *m, sd_bus_error *error, void *userdata) {
1220 assert(m);
1221 assert(userdata);
1222
1223 return read_dns_server_one(m, false, userdata);
1224 }
1225
1226 static int read_domain_one(sd_bus_message *m, bool with_ifindex, char **ret) {
1227 _cleanup_free_ char *str = NULL;
1228 int ifindex, route_only, r;
1229 const char *domain;
1230
1231 assert(m);
1232 assert(ret);
1233
1234 if (with_ifindex)
1235 r = sd_bus_message_read(m, "(isb)", &ifindex, &domain, &route_only);
1236 else
1237 r = sd_bus_message_read(m, "(sb)", &domain, &route_only);
1238 if (r <= 0)
1239 return r;
1240
1241 if (with_ifindex && ifindex != 0) {
1242 /* only show the global ones here */
1243 *ret = NULL;
1244 return 1;
1245 }
1246
1247 if (route_only)
1248 str = strjoin("~", domain);
1249 else
1250 str = strdup(domain);
1251 if (!str)
1252 return -ENOMEM;
1253
1254 *ret = TAKE_PTR(str);
1255
1256 return 1;
1257 }
1258
1259 static int map_link_domains(sd_bus *bus, const char *member, sd_bus_message *m, sd_bus_error *error, void *userdata) {
1260 char ***l = userdata;
1261 int r;
1262
1263 assert(bus);
1264 assert(member);
1265 assert(m);
1266 assert(l);
1267
1268 r = sd_bus_message_enter_container(m, 'a', "(sb)");
1269 if (r < 0)
1270 return r;
1271
1272 for (;;) {
1273 _cleanup_free_ char *pretty = NULL;
1274
1275 r = read_domain_one(m, false, &pretty);
1276 if (r < 0)
1277 return r;
1278 if (r == 0)
1279 break;
1280
1281 if (isempty(pretty))
1282 continue;
1283
1284 r = strv_consume(l, TAKE_PTR(pretty));
1285 if (r < 0)
1286 return r;
1287 }
1288
1289 r = sd_bus_message_exit_container(m);
1290 if (r < 0)
1291 return r;
1292
1293 return 0;
1294 }
1295
1296 static int status_print_strv_ifindex(int ifindex, const char *ifname, char **p) {
1297 char **i;
1298
1299 printf("%sLink %i (%s)%s:",
1300 ansi_highlight(), ifindex, ifname, ansi_normal());
1301
1302 STRV_FOREACH(i, p)
1303 printf(" %s", *i);
1304
1305 printf("\n");
1306
1307 return 0;
1308 }
1309
1310 struct link_info {
1311 uint64_t scopes_mask;
1312 const char *llmnr;
1313 const char *mdns;
1314 const char *dns_over_tls;
1315 const char *dnssec;
1316 char *current_dns;
1317 char **dns;
1318 char **domains;
1319 char **ntas;
1320 bool dnssec_supported;
1321 bool default_route;
1322 };
1323
1324 static void link_info_clear(struct link_info *p) {
1325 free(p->current_dns);
1326 strv_free(p->dns);
1327 strv_free(p->domains);
1328 strv_free(p->ntas);
1329 }
1330
1331 static int dump_list(Table *table, const char *prefix, char * const *l) {
1332 int r;
1333
1334 if (strv_isempty(l))
1335 return 0;
1336
1337 r = table_add_many(table,
1338 TABLE_STRING, prefix,
1339 TABLE_STRV, l);
1340 if (r < 0)
1341 return table_log_add_error(r);
1342
1343 return 0;
1344 }
1345
1346 static int status_ifindex(sd_bus *bus, int ifindex, const char *name, StatusMode mode, bool *empty_line) {
1347 static const struct bus_properties_map property_map[] = {
1348 { "ScopesMask", "t", NULL, offsetof(struct link_info, scopes_mask) },
1349 { "DNS", "a(iay)", map_link_dns_servers, offsetof(struct link_info, dns) },
1350 { "CurrentDNSServer", "(iay)", map_link_current_dns_server, offsetof(struct link_info, current_dns) },
1351 { "Domains", "a(sb)", map_link_domains, offsetof(struct link_info, domains) },
1352 { "DefaultRoute", "b", NULL, offsetof(struct link_info, default_route) },
1353 { "LLMNR", "s", NULL, offsetof(struct link_info, llmnr) },
1354 { "MulticastDNS", "s", NULL, offsetof(struct link_info, mdns) },
1355 { "DNSOverTLS", "s", NULL, offsetof(struct link_info, dns_over_tls) },
1356 { "DNSSEC", "s", NULL, offsetof(struct link_info, dnssec) },
1357 { "DNSSECNegativeTrustAnchors", "as", NULL, offsetof(struct link_info, ntas) },
1358 { "DNSSECSupported", "b", NULL, offsetof(struct link_info, dnssec_supported) },
1359 {}
1360 };
1361 _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
1362 _cleanup_(sd_bus_message_unrefp) sd_bus_message *m = NULL;
1363 _cleanup_(link_info_clear) struct link_info link_info = {};
1364 _cleanup_(table_unrefp) Table *table = NULL;
1365 _cleanup_free_ char *p = NULL;
1366 char ifi[DECIMAL_STR_MAX(int)], ifname[IF_NAMESIZE + 1] = "";
1367 int r;
1368
1369 assert(bus);
1370 assert(ifindex > 0);
1371
1372 if (!name) {
1373 if (!format_ifname(ifindex, ifname))
1374 return log_error_errno(errno, "Failed to resolve interface name for %i: %m", ifindex);
1375
1376 name = ifname;
1377 }
1378
1379 xsprintf(ifi, "%i", ifindex);
1380 r = sd_bus_path_encode("/org/freedesktop/resolve1/link", ifi, &p);
1381 if (r < 0)
1382 return log_oom();
1383
1384 r = bus_map_all_properties(bus,
1385 "org.freedesktop.resolve1",
1386 p,
1387 property_map,
1388 BUS_MAP_BOOLEAN_AS_BOOL,
1389 &error,
1390 &m,
1391 &link_info);
1392 if (r < 0)
1393 return log_error_errno(r, "Failed to get link data for %i: %s", ifindex, bus_error_message(&error, r));
1394
1395 (void) pager_open(arg_pager_flags);
1396
1397 if (mode == STATUS_DNS)
1398 return status_print_strv_ifindex(ifindex, name, link_info.dns);
1399
1400 if (mode == STATUS_DOMAIN)
1401 return status_print_strv_ifindex(ifindex, name, link_info.domains);
1402
1403 if (mode == STATUS_NTA)
1404 return status_print_strv_ifindex(ifindex, name, link_info.ntas);
1405
1406 if (mode == STATUS_DEFAULT_ROUTE) {
1407 printf("%sLink %i (%s)%s: %s\n",
1408 ansi_highlight(), ifindex, name, ansi_normal(),
1409 yes_no(link_info.default_route));
1410
1411 return 0;
1412 }
1413
1414 if (mode == STATUS_LLMNR) {
1415 printf("%sLink %i (%s)%s: %s\n",
1416 ansi_highlight(), ifindex, name, ansi_normal(),
1417 strna(link_info.llmnr));
1418
1419 return 0;
1420 }
1421
1422 if (mode == STATUS_MDNS) {
1423 printf("%sLink %i (%s)%s: %s\n",
1424 ansi_highlight(), ifindex, name, ansi_normal(),
1425 strna(link_info.mdns));
1426
1427 return 0;
1428 }
1429
1430 if (mode == STATUS_PRIVATE) {
1431 printf("%sLink %i (%s)%s: %s\n",
1432 ansi_highlight(), ifindex, name, ansi_normal(),
1433 strna(link_info.dns_over_tls));
1434
1435 return 0;
1436 }
1437
1438 if (mode == STATUS_DNSSEC) {
1439 printf("%sLink %i (%s)%s: %s\n",
1440 ansi_highlight(), ifindex, name, ansi_normal(),
1441 strna(link_info.dnssec));
1442
1443 return 0;
1444 }
1445
1446 if (empty_line && *empty_line)
1447 fputc('\n', stdout);
1448
1449 printf("%sLink %i (%s)%s\n",
1450 ansi_highlight(), ifindex, name, ansi_normal());
1451
1452 table = table_new("key", "value");
1453 if (!table)
1454 return log_oom();
1455
1456 table_set_header(table, false);
1457
1458 r = table_add_many(table,
1459 TABLE_STRING, "Current Scopes:",
1460 TABLE_SET_ALIGN_PERCENT, 100);
1461 if (r < 0)
1462 return table_log_add_error(r);
1463
1464 if (link_info.scopes_mask == 0)
1465 r = table_add_cell(table, NULL, TABLE_STRING, "none");
1466 else {
1467 _cleanup_free_ char *buf = NULL;
1468 size_t len;
1469
1470 if (asprintf(&buf, "%s%s%s%s%s",
1471 link_info.scopes_mask & SD_RESOLVED_DNS ? "DNS " : "",
1472 link_info.scopes_mask & SD_RESOLVED_LLMNR_IPV4 ? "LLMNR/IPv4 " : "",
1473 link_info.scopes_mask & SD_RESOLVED_LLMNR_IPV6 ? "LLMNR/IPv6 " : "",
1474 link_info.scopes_mask & SD_RESOLVED_MDNS_IPV4 ? "mDNS/IPv4 " : "",
1475 link_info.scopes_mask & SD_RESOLVED_MDNS_IPV6 ? "mDNS/IPv6 " : "") < 0)
1476 return log_oom();
1477
1478 len = strlen(buf);
1479 assert(len > 0);
1480 buf[len - 1] = '\0';
1481
1482 r = table_add_cell(table, NULL, TABLE_STRING, buf);
1483 }
1484 if (r < 0)
1485 return table_log_add_error(r);
1486
1487 r = table_add_many(table,
1488 TABLE_STRING, "DefaultRoute setting:",
1489 TABLE_BOOLEAN, link_info.default_route,
1490 TABLE_STRING, "LLMNR setting:",
1491 TABLE_STRING, strna(link_info.llmnr),
1492 TABLE_STRING, "MulticastDNS setting:",
1493 TABLE_STRING, strna(link_info.mdns),
1494 TABLE_STRING, "DNSOverTLS setting:",
1495 TABLE_STRING, strna(link_info.dns_over_tls),
1496 TABLE_STRING, "DNSSEC setting:",
1497 TABLE_STRING, strna(link_info.dnssec),
1498 TABLE_STRING, "DNSSEC supported:",
1499 TABLE_BOOLEAN, link_info.dnssec_supported);
1500 if (r < 0)
1501 return table_log_add_error(r);
1502
1503 if (link_info.current_dns) {
1504 r = table_add_many(table,
1505 TABLE_STRING, "Current DNS Server:",
1506 TABLE_STRING, link_info.current_dns);
1507 if (r < 0)
1508 return table_log_add_error(r);
1509 }
1510
1511 r = dump_list(table, "DNS Servers:", link_info.dns);
1512 if (r < 0)
1513 return r;
1514
1515 r = dump_list(table, "DNS Domain:", link_info.domains);
1516 if (r < 0)
1517 return r;
1518
1519 r = table_print(table, NULL);
1520 if (r < 0)
1521 return log_error_errno(r, "Failed to print table: %m");
1522
1523 if (empty_line)
1524 *empty_line = true;
1525
1526 return 0;
1527 }
1528
1529 static int map_global_dns_servers(sd_bus *bus, const char *member, sd_bus_message *m, sd_bus_error *error, void *userdata) {
1530 char ***l = userdata;
1531 int r;
1532
1533 assert(bus);
1534 assert(member);
1535 assert(m);
1536 assert(l);
1537
1538 r = sd_bus_message_enter_container(m, 'a', "(iiay)");
1539 if (r < 0)
1540 return r;
1541
1542 for (;;) {
1543 _cleanup_free_ char *pretty = NULL;
1544
1545 r = read_dns_server_one(m, true, &pretty);
1546 if (r < 0)
1547 return r;
1548 if (r == 0)
1549 break;
1550
1551 if (isempty(pretty))
1552 continue;
1553
1554 r = strv_consume(l, TAKE_PTR(pretty));
1555 if (r < 0)
1556 return r;
1557 }
1558
1559 r = sd_bus_message_exit_container(m);
1560 if (r < 0)
1561 return r;
1562
1563 return 0;
1564 }
1565
1566 static int map_global_current_dns_server(sd_bus *bus, const char *member, sd_bus_message *m, sd_bus_error *error, void *userdata) {
1567 assert(m);
1568 assert(userdata);
1569
1570 return read_dns_server_one(m, true, userdata);
1571 }
1572
1573 static int map_global_domains(sd_bus *bus, const char *member, sd_bus_message *m, sd_bus_error *error, void *userdata) {
1574 char ***l = userdata;
1575 int r;
1576
1577 assert(bus);
1578 assert(member);
1579 assert(m);
1580 assert(l);
1581
1582 r = sd_bus_message_enter_container(m, 'a', "(isb)");
1583 if (r < 0)
1584 return r;
1585
1586 for (;;) {
1587 _cleanup_free_ char *pretty = NULL;
1588
1589 r = read_domain_one(m, true, &pretty);
1590 if (r < 0)
1591 return r;
1592 if (r == 0)
1593 break;
1594
1595 if (isempty(pretty))
1596 continue;
1597
1598 r = strv_consume(l, TAKE_PTR(pretty));
1599 if (r < 0)
1600 return r;
1601 }
1602
1603 r = sd_bus_message_exit_container(m);
1604 if (r < 0)
1605 return r;
1606
1607 return 0;
1608 }
1609
1610 static int status_print_strv_global(char **p) {
1611 char **i;
1612
1613 printf("%sGlobal%s:", ansi_highlight(), ansi_normal());
1614
1615 STRV_FOREACH(i, p)
1616 printf(" %s", *i);
1617
1618 printf("\n");
1619
1620 return 0;
1621 }
1622
1623 struct global_info {
1624 char *current_dns;
1625 char **dns;
1626 char **fallback_dns;
1627 char **domains;
1628 char **ntas;
1629 const char *llmnr;
1630 const char *mdns;
1631 const char *dns_over_tls;
1632 const char *dnssec;
1633 bool dnssec_supported;
1634 };
1635
1636 static void global_info_clear(struct global_info *p) {
1637 free(p->current_dns);
1638 strv_free(p->dns);
1639 strv_free(p->fallback_dns);
1640 strv_free(p->domains);
1641 strv_free(p->ntas);
1642 }
1643
1644 static int status_global(sd_bus *bus, StatusMode mode, bool *empty_line) {
1645 static const struct bus_properties_map property_map[] = {
1646 { "DNS", "a(iiay)", map_global_dns_servers, offsetof(struct global_info, dns) },
1647 { "FallbackDNS", "a(iiay)", map_global_dns_servers, offsetof(struct global_info, fallback_dns) },
1648 { "CurrentDNSServer", "(iiay)", map_global_current_dns_server, offsetof(struct global_info, current_dns) },
1649 { "Domains", "a(isb)", map_global_domains, offsetof(struct global_info, domains) },
1650 { "DNSSECNegativeTrustAnchors", "as", NULL, offsetof(struct global_info, ntas) },
1651 { "LLMNR", "s", NULL, offsetof(struct global_info, llmnr) },
1652 { "MulticastDNS", "s", NULL, offsetof(struct global_info, mdns) },
1653 { "DNSOverTLS", "s", NULL, offsetof(struct global_info, dns_over_tls) },
1654 { "DNSSEC", "s", NULL, offsetof(struct global_info, dnssec) },
1655 { "DNSSECSupported", "b", NULL, offsetof(struct global_info, dnssec_supported) },
1656 {}
1657 };
1658 _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
1659 _cleanup_(sd_bus_message_unrefp) sd_bus_message *m = NULL;
1660 _cleanup_(global_info_clear) struct global_info global_info = {};
1661 _cleanup_(table_unrefp) Table *table = NULL;
1662 int r;
1663
1664 assert(bus);
1665 assert(empty_line);
1666
1667 r = bus_map_all_properties(bus,
1668 "org.freedesktop.resolve1",
1669 "/org/freedesktop/resolve1",
1670 property_map,
1671 BUS_MAP_BOOLEAN_AS_BOOL,
1672 &error,
1673 &m,
1674 &global_info);
1675 if (r < 0)
1676 return log_error_errno(r, "Failed to get global data: %s", bus_error_message(&error, r));
1677
1678 (void) pager_open(arg_pager_flags);
1679
1680 if (mode == STATUS_DNS)
1681 return status_print_strv_global(global_info.dns);
1682
1683 if (mode == STATUS_DOMAIN)
1684 return status_print_strv_global(global_info.domains);
1685
1686 if (mode == STATUS_NTA)
1687 return status_print_strv_global(global_info.ntas);
1688
1689 if (mode == STATUS_LLMNR) {
1690 printf("%sGlobal%s: %s\n", ansi_highlight(), ansi_normal(),
1691 strna(global_info.llmnr));
1692
1693 return 0;
1694 }
1695
1696 if (mode == STATUS_MDNS) {
1697 printf("%sGlobal%s: %s\n", ansi_highlight(), ansi_normal(),
1698 strna(global_info.mdns));
1699
1700 return 0;
1701 }
1702
1703 if (mode == STATUS_PRIVATE) {
1704 printf("%sGlobal%s: %s\n", ansi_highlight(), ansi_normal(),
1705 strna(global_info.dns_over_tls));
1706
1707 return 0;
1708 }
1709
1710 if (mode == STATUS_DNSSEC) {
1711 printf("%sGlobal%s: %s\n", ansi_highlight(), ansi_normal(),
1712 strna(global_info.dnssec));
1713
1714 return 0;
1715 }
1716
1717 printf("%sGlobal%s\n", ansi_highlight(), ansi_normal());
1718
1719 table = table_new("key", "value");
1720 if (!table)
1721 return log_oom();
1722
1723 table_set_header(table, false);
1724
1725 r = table_add_many(table,
1726 TABLE_STRING, "LLMNR setting:",
1727 TABLE_SET_ALIGN_PERCENT, 100,
1728 TABLE_STRING, strna(global_info.llmnr),
1729 TABLE_STRING, "MulticastDNS setting:",
1730 TABLE_STRING, strna(global_info.mdns),
1731 TABLE_STRING, "DNSOverTLS setting:",
1732 TABLE_STRING, strna(global_info.dns_over_tls),
1733 TABLE_STRING, "DNSSEC setting:",
1734 TABLE_STRING, strna(global_info.dnssec),
1735 TABLE_STRING, "DNSSEC supported:",
1736 TABLE_BOOLEAN, global_info.dnssec_supported);
1737 if (r < 0)
1738 return table_log_add_error(r);
1739
1740 if (global_info.current_dns) {
1741 r = table_add_many(table,
1742 TABLE_STRING, "Current DNS Server:",
1743 TABLE_STRING, global_info.current_dns);
1744 if (r < 0)
1745 return table_log_add_error(r);
1746 }
1747
1748 r = dump_list(table, "DNS Servers:", global_info.dns);
1749 if (r < 0)
1750 return r;
1751
1752 r = dump_list(table, "Fallback DNS Servers:", global_info.fallback_dns);
1753 if (r < 0)
1754 return r;
1755
1756 r = dump_list(table, "DNS Domain:", global_info.domains);
1757 if (r < 0)
1758 return r;
1759
1760 r = table_print(table, NULL);
1761 if (r < 0)
1762 return log_error_errno(r, "Failed to print table: %m");
1763
1764 *empty_line = true;
1765
1766 return 0;
1767 }
1768
1769 static int status_all(sd_bus *bus, StatusMode mode) {
1770 _cleanup_(sd_netlink_message_unrefp) sd_netlink_message *req = NULL, *reply = NULL;
1771 _cleanup_(sd_netlink_unrefp) sd_netlink *rtnl = NULL;
1772 bool empty_line = false;
1773 int r;
1774
1775 assert(bus);
1776
1777 r = status_global(bus, mode, &empty_line);
1778 if (r < 0)
1779 return r;
1780
1781 r = sd_netlink_open(&rtnl);
1782 if (r < 0)
1783 return log_error_errno(r, "Failed to connect to netlink: %m");
1784
1785 r = sd_rtnl_message_new_link(rtnl, &req, RTM_GETLINK, 0);
1786 if (r < 0)
1787 return rtnl_log_create_error(r);
1788
1789 r = sd_netlink_message_request_dump(req, true);
1790 if (r < 0)
1791 return rtnl_log_create_error(r);
1792
1793 r = sd_netlink_call(rtnl, req, 0, &reply);
1794 if (r < 0)
1795 return log_error_errno(r, "Failed to enumerate links: %m");
1796
1797 _cleanup_free_ InterfaceInfo *infos = NULL;
1798 size_t n_allocated = 0, n_infos = 0;
1799
1800 for (sd_netlink_message *i = reply; i; i = sd_netlink_message_next(i)) {
1801 const char *name;
1802 int ifindex;
1803 uint16_t type;
1804
1805 r = sd_netlink_message_get_type(i, &type);
1806 if (r < 0)
1807 return rtnl_log_parse_error(r);
1808
1809 if (type != RTM_NEWLINK)
1810 continue;
1811
1812 r = sd_rtnl_message_link_get_ifindex(i, &ifindex);
1813 if (r < 0)
1814 return rtnl_log_parse_error(r);
1815
1816 if (ifindex == LOOPBACK_IFINDEX)
1817 continue;
1818
1819 r = sd_netlink_message_read_string(i, IFLA_IFNAME, &name);
1820 if (r < 0)
1821 return rtnl_log_parse_error(r);
1822
1823 if (!GREEDY_REALLOC(infos, n_allocated, n_infos + 1))
1824 return log_oom();
1825
1826 infos[n_infos++] = (InterfaceInfo) { ifindex, name };
1827 }
1828
1829 typesafe_qsort(infos, n_infos, interface_info_compare);
1830
1831 r = 0;
1832 for (size_t i = 0; i < n_infos; i++) {
1833 int q = status_ifindex(bus, infos[i].index, infos[i].name, mode, &empty_line);
1834 if (q < 0 && r >= 0)
1835 r = q;
1836 }
1837
1838 return r;
1839 }
1840
1841 static int verb_status(int argc, char **argv, void *userdata) {
1842 sd_bus *bus = userdata;
1843 _cleanup_(sd_netlink_unrefp) sd_netlink *rtnl = NULL;
1844 int r = 0;
1845
1846 if (argc > 1) {
1847 char **ifname;
1848 bool empty_line = false;
1849
1850 STRV_FOREACH(ifname, argv + 1) {
1851 int ifindex, q;
1852
1853 ifindex = resolve_interface(&rtnl, *ifname);
1854 if (ifindex < 0) {
1855 log_warning_errno(ifindex, "Failed to resolve interface \"%s\", ignoring: %m", *ifname);
1856 continue;
1857 }
1858
1859 q = status_ifindex(bus, ifindex, NULL, STATUS_ALL, &empty_line);
1860 if (q < 0)
1861 r = q;
1862 }
1863 } else
1864 r = status_all(bus, STATUS_ALL);
1865
1866 return r;
1867 }
1868
1869 static int call_dns(sd_bus *bus, char **dns, const BusLocator *locator, sd_bus_error *error) {
1870 _cleanup_(sd_bus_message_unrefp) sd_bus_message *req = NULL;
1871 char **p;
1872 int r;
1873
1874 r = bus_message_new_method_call(bus, &req, locator, "SetLinkDNS");
1875 if (r < 0)
1876 return bus_log_create_error(r);
1877
1878 r = sd_bus_message_append(req, "i", arg_ifindex);
1879 if (r < 0)
1880 return bus_log_create_error(r);
1881
1882 r = sd_bus_message_open_container(req, 'a', "(iay)");
1883 if (r < 0)
1884 return bus_log_create_error(r);
1885
1886 /* If only argument is the empty string, then call SetLinkDNS() with an
1887 * empty list, which will clear the list of domains for an interface. */
1888 if (!strv_equal(dns, STRV_MAKE("")))
1889 STRV_FOREACH(p, dns) {
1890 struct in_addr_data data;
1891
1892 r = in_addr_from_string_auto(*p, &data.family, &data.address);
1893 if (r < 0)
1894 return log_error_errno(r, "Failed to parse DNS server address: %s", *p);
1895
1896 r = sd_bus_message_open_container(req, 'r', "iay");
1897 if (r < 0)
1898 return bus_log_create_error(r);
1899
1900 r = sd_bus_message_append(req, "i", data.family);
1901 if (r < 0)
1902 return bus_log_create_error(r);
1903
1904 r = sd_bus_message_append_array(req, 'y', &data.address, FAMILY_ADDRESS_SIZE(data.family));
1905 if (r < 0)
1906 return bus_log_create_error(r);
1907
1908 r = sd_bus_message_close_container(req);
1909 if (r < 0)
1910 return bus_log_create_error(r);
1911 }
1912
1913 r = sd_bus_message_close_container(req);
1914 if (r < 0)
1915 return bus_log_create_error(r);
1916
1917 return sd_bus_call(bus, req, 0, error, NULL);
1918 }
1919
1920 static int verb_dns(int argc, char **argv, void *userdata) {
1921 _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
1922 sd_bus *bus = userdata;
1923 int r;
1924
1925 assert(bus);
1926
1927 if (argc >= 2) {
1928 r = ifname_mangle(argv[1]);
1929 if (r < 0)
1930 return r;
1931 }
1932
1933 if (arg_ifindex <= 0)
1934 return status_all(bus, STATUS_DNS);
1935
1936 if (argc < 3)
1937 return status_ifindex(bus, arg_ifindex, NULL, STATUS_DNS, NULL);
1938
1939 r = call_dns(bus, argv + 2, bus_resolve_mgr, &error);
1940 if (r < 0 && sd_bus_error_has_name(&error, BUS_ERROR_LINK_BUSY)) {
1941 sd_bus_error_free(&error);
1942
1943 r = call_dns(bus, argv + 2, bus_network_mgr, &error);
1944 }
1945 if (r < 0) {
1946 if (arg_ifindex_permissive &&
1947 sd_bus_error_has_name(&error, BUS_ERROR_NO_SUCH_LINK))
1948 return 0;
1949
1950 return log_error_errno(r, "Failed to set DNS configuration: %s", bus_error_message(&error, r));
1951 }
1952
1953 return 0;
1954 }
1955
1956 static int call_domain(sd_bus *bus, char **domain, const BusLocator *locator, sd_bus_error *error) {
1957 _cleanup_(sd_bus_message_unrefp) sd_bus_message *req = NULL;
1958 char **p;
1959 int r;
1960
1961 r = bus_message_new_method_call(bus, &req, locator, "SetLinkDomains");
1962 if (r < 0)
1963 return bus_log_create_error(r);
1964
1965 r = sd_bus_message_append(req, "i", arg_ifindex);
1966 if (r < 0)
1967 return bus_log_create_error(r);
1968
1969 r = sd_bus_message_open_container(req, 'a', "(sb)");
1970 if (r < 0)
1971 return bus_log_create_error(r);
1972
1973 /* If only argument is the empty string, then call SetLinkDomains() with an
1974 * empty list, which will clear the list of domains for an interface. */
1975 if (!strv_equal(domain, STRV_MAKE("")))
1976 STRV_FOREACH(p, domain) {
1977 const char *n;
1978
1979 n = **p == '~' ? *p + 1 : *p;
1980
1981 r = dns_name_is_valid(n);
1982 if (r < 0)
1983 return log_error_errno(r, "Failed to validate specified domain %s: %m", n);
1984 if (r == 0) {
1985 log_error("Domain not valid: %s", n);
1986 return -EINVAL;
1987 }
1988
1989 r = sd_bus_message_append(req, "(sb)", n, **p == '~');
1990 if (r < 0)
1991 return bus_log_create_error(r);
1992 }
1993
1994 r = sd_bus_message_close_container(req);
1995 if (r < 0)
1996 return bus_log_create_error(r);
1997
1998 return sd_bus_call(bus, req, 0, error, NULL);
1999 }
2000
2001 static int verb_domain(int argc, char **argv, void *userdata) {
2002 _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
2003 sd_bus *bus = userdata;
2004 int r;
2005
2006 assert(bus);
2007
2008 if (argc >= 2) {
2009 r = ifname_mangle(argv[1]);
2010 if (r < 0)
2011 return r;
2012 }
2013
2014 if (arg_ifindex <= 0)
2015 return status_all(bus, STATUS_DOMAIN);
2016
2017 if (argc < 3)
2018 return status_ifindex(bus, arg_ifindex, NULL, STATUS_DOMAIN, NULL);
2019
2020 r = call_domain(bus, argv + 2, bus_resolve_mgr, &error);
2021 if (r < 0 && sd_bus_error_has_name(&error, BUS_ERROR_LINK_BUSY)) {
2022 sd_bus_error_free(&error);
2023
2024 r = call_domain(bus, argv + 2, bus_network_mgr, &error);
2025 }
2026 if (r < 0) {
2027 if (arg_ifindex_permissive &&
2028 sd_bus_error_has_name(&error, BUS_ERROR_NO_SUCH_LINK))
2029 return 0;
2030
2031 return log_error_errno(r, "Failed to set domain configuration: %s", bus_error_message(&error, r));
2032 }
2033
2034 return 0;
2035 }
2036
2037 static int verb_default_route(int argc, char **argv, void *userdata) {
2038 _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
2039 sd_bus *bus = userdata;
2040 int r, b;
2041
2042 assert(bus);
2043
2044 if (argc >= 2) {
2045 r = ifname_mangle(argv[1]);
2046 if (r < 0)
2047 return r;
2048 }
2049
2050 if (arg_ifindex <= 0)
2051 return status_all(bus, STATUS_DEFAULT_ROUTE);
2052
2053 if (argc < 3)
2054 return status_ifindex(bus, arg_ifindex, NULL, STATUS_DEFAULT_ROUTE, NULL);
2055
2056 b = parse_boolean(argv[2]);
2057 if (b < 0)
2058 return log_error_errno(b, "Failed to parse boolean argument: %s", argv[2]);
2059
2060 r = bus_call_method(bus, bus_resolve_mgr, "SetLinkDefaultRoute", &error, NULL, "ib", arg_ifindex, b);
2061 if (r < 0 && sd_bus_error_has_name(&error, BUS_ERROR_LINK_BUSY)) {
2062 sd_bus_error_free(&error);
2063
2064 r = bus_call_method(bus, bus_network_mgr, "SetLinkDefaultRoute", &error, NULL, "ib", arg_ifindex, b);
2065 }
2066 if (r < 0) {
2067 if (arg_ifindex_permissive &&
2068 sd_bus_error_has_name(&error, BUS_ERROR_NO_SUCH_LINK))
2069 return 0;
2070
2071 return log_error_errno(r, "Failed to set default route configuration: %s", bus_error_message(&error, r));
2072 }
2073
2074 return 0;
2075 }
2076
2077 static int verb_llmnr(int argc, char **argv, void *userdata) {
2078 _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
2079 sd_bus *bus = userdata;
2080 int r;
2081
2082 assert(bus);
2083
2084 if (argc >= 2) {
2085 r = ifname_mangle(argv[1]);
2086 if (r < 0)
2087 return r;
2088 }
2089
2090 if (arg_ifindex <= 0)
2091 return status_all(bus, STATUS_LLMNR);
2092
2093 if (argc < 3)
2094 return status_ifindex(bus, arg_ifindex, NULL, STATUS_LLMNR, NULL);
2095
2096 r = bus_call_method(bus, bus_resolve_mgr, "SetLinkLLMNR", &error, NULL, "is", arg_ifindex, argv[2]);
2097 if (r < 0 && sd_bus_error_has_name(&error, BUS_ERROR_LINK_BUSY)) {
2098 sd_bus_error_free(&error);
2099
2100 r = bus_call_method(bus, bus_network_mgr, "SetLinkLLMNR", &error, NULL, "is", arg_ifindex, argv[2]);
2101 }
2102 if (r < 0) {
2103 if (arg_ifindex_permissive &&
2104 sd_bus_error_has_name(&error, BUS_ERROR_NO_SUCH_LINK))
2105 return 0;
2106
2107 return log_error_errno(r, "Failed to set LLMNR configuration: %s", bus_error_message(&error, r));
2108 }
2109
2110 return 0;
2111 }
2112
2113 static int verb_mdns(int argc, char **argv, void *userdata) {
2114 _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
2115 sd_bus *bus = userdata;
2116 int r;
2117
2118 assert(bus);
2119
2120 if (argc >= 2) {
2121 r = ifname_mangle(argv[1]);
2122 if (r < 0)
2123 return r;
2124 }
2125
2126 if (arg_ifindex <= 0)
2127 return status_all(bus, STATUS_MDNS);
2128
2129 if (argc < 3)
2130 return status_ifindex(bus, arg_ifindex, NULL, STATUS_MDNS, NULL);
2131
2132 r = bus_call_method(bus, bus_resolve_mgr, "SetLinkMulticastDNS", &error, NULL, "is", arg_ifindex, argv[2]);
2133 if (r < 0 && sd_bus_error_has_name(&error, BUS_ERROR_LINK_BUSY)) {
2134 sd_bus_error_free(&error);
2135
2136 r = bus_call_method(
2137 bus,
2138 bus_network_mgr,
2139 "SetLinkMulticastDNS",
2140 &error,
2141 NULL,
2142 "is", arg_ifindex, argv[2]);
2143 }
2144 if (r < 0) {
2145 if (arg_ifindex_permissive &&
2146 sd_bus_error_has_name(&error, BUS_ERROR_NO_SUCH_LINK))
2147 return 0;
2148
2149 return log_error_errno(r, "Failed to set MulticastDNS configuration: %s", bus_error_message(&error, r));
2150 }
2151
2152 return 0;
2153 }
2154
2155 static int verb_dns_over_tls(int argc, char **argv, void *userdata) {
2156 _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
2157 sd_bus *bus = userdata;
2158 int r;
2159
2160 assert(bus);
2161
2162 if (argc >= 2) {
2163 r = ifname_mangle(argv[1]);
2164 if (r < 0)
2165 return r;
2166 }
2167
2168 if (arg_ifindex <= 0)
2169 return status_all(bus, STATUS_PRIVATE);
2170
2171 if (argc < 3)
2172 return status_ifindex(bus, arg_ifindex, NULL, STATUS_PRIVATE, NULL);
2173
2174 r = bus_call_method(bus, bus_resolve_mgr, "SetLinkDNSOverTLS", &error, NULL, "is", arg_ifindex, argv[2]);
2175 if (r < 0 && sd_bus_error_has_name(&error, BUS_ERROR_LINK_BUSY)) {
2176 sd_bus_error_free(&error);
2177
2178 r = bus_call_method(
2179 bus,
2180 bus_network_mgr,
2181 "SetLinkDNSOverTLS",
2182 &error,
2183 NULL,
2184 "is", arg_ifindex, argv[2]);
2185 }
2186 if (r < 0) {
2187 if (arg_ifindex_permissive &&
2188 sd_bus_error_has_name(&error, BUS_ERROR_NO_SUCH_LINK))
2189 return 0;
2190
2191 return log_error_errno(r, "Failed to set DNSOverTLS configuration: %s", bus_error_message(&error, r));
2192 }
2193
2194 return 0;
2195 }
2196
2197 static int verb_dnssec(int argc, char **argv, void *userdata) {
2198 _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
2199 sd_bus *bus = userdata;
2200 int r;
2201
2202 assert(bus);
2203
2204 if (argc >= 2) {
2205 r = ifname_mangle(argv[1]);
2206 if (r < 0)
2207 return r;
2208 }
2209
2210 if (arg_ifindex <= 0)
2211 return status_all(bus, STATUS_DNSSEC);
2212
2213 if (argc < 3)
2214 return status_ifindex(bus, arg_ifindex, NULL, STATUS_DNSSEC, NULL);
2215
2216 r = bus_call_method(bus, bus_resolve_mgr, "SetLinkDNSSEC", &error, NULL, "is", arg_ifindex, argv[2]);
2217 if (r < 0 && sd_bus_error_has_name(&error, BUS_ERROR_LINK_BUSY)) {
2218 sd_bus_error_free(&error);
2219
2220 r = bus_call_method(bus, bus_network_mgr, "SetLinkDNSSEC", &error, NULL, "is", arg_ifindex, argv[2]);
2221 }
2222 if (r < 0) {
2223 if (arg_ifindex_permissive &&
2224 sd_bus_error_has_name(&error, BUS_ERROR_NO_SUCH_LINK))
2225 return 0;
2226
2227 return log_error_errno(r, "Failed to set DNSSEC configuration: %s", bus_error_message(&error, r));
2228 }
2229
2230 return 0;
2231 }
2232
2233 static int call_nta(sd_bus *bus, char **nta, const BusLocator *locator, sd_bus_error *error) {
2234 _cleanup_(sd_bus_message_unrefp) sd_bus_message *req = NULL;
2235 int r;
2236
2237 r = bus_message_new_method_call(bus, &req, locator, "SetLinkDNSSECNegativeTrustAnchors");
2238 if (r < 0)
2239 return bus_log_create_error(r);
2240
2241 r = sd_bus_message_append(req, "i", arg_ifindex);
2242 if (r < 0)
2243 return bus_log_create_error(r);
2244
2245 r = sd_bus_message_append_strv(req, nta);
2246 if (r < 0)
2247 return bus_log_create_error(r);
2248
2249 return sd_bus_call(bus, req, 0, error, NULL);
2250 }
2251
2252 static int verb_nta(int argc, char **argv, void *userdata) {
2253 _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
2254 sd_bus *bus = userdata;
2255 char **p;
2256 int r;
2257 bool clear;
2258
2259 assert(bus);
2260
2261 if (argc >= 2) {
2262 r = ifname_mangle(argv[1]);
2263 if (r < 0)
2264 return r;
2265 }
2266
2267 if (arg_ifindex <= 0)
2268 return status_all(bus, STATUS_NTA);
2269
2270 if (argc < 3)
2271 return status_ifindex(bus, arg_ifindex, NULL, STATUS_NTA, NULL);
2272
2273 /* If only argument is the empty string, then call SetLinkDNSSECNegativeTrustAnchors()
2274 * with an empty list, which will clear the list of domains for an interface. */
2275 clear = strv_equal(argv + 2, STRV_MAKE(""));
2276
2277 if (!clear)
2278 STRV_FOREACH(p, argv + 2) {
2279 r = dns_name_is_valid(*p);
2280 if (r < 0)
2281 return log_error_errno(r, "Failed to validate specified domain %s: %m", *p);
2282 if (r == 0) {
2283 log_error("Domain not valid: %s", *p);
2284 return -EINVAL;
2285 }
2286 }
2287
2288 r = call_nta(bus, clear ? NULL : argv + 2, bus_resolve_mgr, &error);
2289 if (r < 0 && sd_bus_error_has_name(&error, BUS_ERROR_LINK_BUSY)) {
2290 sd_bus_error_free(&error);
2291
2292 r = call_nta(bus, clear ? NULL : argv + 2, bus_network_mgr, &error);
2293 }
2294 if (r < 0) {
2295 if (arg_ifindex_permissive &&
2296 sd_bus_error_has_name(&error, BUS_ERROR_NO_SUCH_LINK))
2297 return 0;
2298
2299 return log_error_errno(r, "Failed to set DNSSEC NTA configuration: %s", bus_error_message(&error, r));
2300 }
2301
2302 return 0;
2303 }
2304
2305 static int verb_revert_link(int argc, char **argv, void *userdata) {
2306 _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
2307 sd_bus *bus = userdata;
2308 int r;
2309
2310 assert(bus);
2311
2312 if (argc >= 2) {
2313 r = ifname_mangle(argv[1]);
2314 if (r < 0)
2315 return r;
2316 }
2317
2318 if (arg_ifindex <= 0)
2319 return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "Interface argument required.");
2320
2321 r = bus_call_method(bus, bus_resolve_mgr, "RevertLink", &error, NULL, "i", arg_ifindex);
2322 if (r < 0 && sd_bus_error_has_name(&error, BUS_ERROR_LINK_BUSY)) {
2323 sd_bus_error_free(&error);
2324
2325 r = bus_call_method(bus, bus_network_mgr, "RevertLinkDNS", &error, NULL, "i", arg_ifindex);
2326 }
2327 if (r < 0) {
2328 if (arg_ifindex_permissive &&
2329 sd_bus_error_has_name(&error, BUS_ERROR_NO_SUCH_LINK))
2330 return 0;
2331
2332 return log_error_errno(r, "Failed to revert interface configuration: %s", bus_error_message(&error, r));
2333 }
2334
2335 return 0;
2336 }
2337
2338 static int verb_log_level(int argc, char *argv[], void *userdata) {
2339 _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
2340 sd_bus *bus = userdata;
2341 int r;
2342
2343 assert(bus);
2344
2345 if (argc == 1) {
2346 _cleanup_free_ char *level = NULL;
2347
2348 r = sd_bus_get_property_string(
2349 bus,
2350 "org.freedesktop.resolve1",
2351 "/org/freedesktop/LogControl1",
2352 "org.freedesktop.LogControl1",
2353 "LogLevel",
2354 &error,
2355 &level);
2356 if (r < 0)
2357 return log_error_errno(r, "Failed to get log level: %s", bus_error_message(&error, r));
2358
2359 puts(level);
2360
2361 } else {
2362 assert(argc == 2);
2363
2364 r = sd_bus_set_property(
2365 bus,
2366 "org.freedesktop.resolve1",
2367 "/org/freedesktop/LogControl1",
2368 "org.freedesktop.LogControl1",
2369 "LogLevel",
2370 &error,
2371 "s",
2372 argv[1]);
2373 if (r < 0)
2374 return log_error_errno(r, "Failed to set log level: %s", bus_error_message(&error, r));
2375 }
2376
2377 return 0;
2378 }
2379
2380 static void help_protocol_types(void) {
2381 if (arg_legend)
2382 puts("Known protocol types:");
2383 puts("dns\nllmnr\nllmnr-ipv4\nllmnr-ipv6\nmdns\nmdns-ipv4\nmdns-ipv6");
2384 }
2385
2386 static void help_dns_types(void) {
2387 if (arg_legend)
2388 puts("Known DNS RR types:");
2389
2390 DUMP_STRING_TABLE(dns_type, int, _DNS_TYPE_MAX);
2391 }
2392
2393 static void help_dns_classes(void) {
2394 if (arg_legend)
2395 puts("Known DNS RR classes:");
2396
2397 DUMP_STRING_TABLE(dns_class, int, _DNS_CLASS_MAX);
2398 }
2399
2400 static int compat_help(void) {
2401 _cleanup_free_ char *link = NULL;
2402 int r;
2403
2404 r = terminal_urlify_man("resolvectl", "1", &link);
2405 if (r < 0)
2406 return log_oom();
2407
2408 printf("%1$s [OPTIONS...] HOSTNAME|ADDRESS...\n"
2409 "%1$s [OPTIONS...] --service [[NAME] TYPE] DOMAIN\n"
2410 "%1$s [OPTIONS...] --openpgp EMAIL@DOMAIN...\n"
2411 "%1$s [OPTIONS...] --statistics\n"
2412 "%1$s [OPTIONS...] --reset-statistics\n"
2413 "\n"
2414 "%2$sResolve domain names, IPv4 and IPv6 addresses, DNS records, and services.%3$s\n\n"
2415 " -h --help Show this help\n"
2416 " --version Show package version\n"
2417 " --no-pager Do not pipe output into a pager\n"
2418 " -4 Resolve IPv4 addresses\n"
2419 " -6 Resolve IPv6 addresses\n"
2420 " -i --interface=INTERFACE Look on interface\n"
2421 " -p --protocol=PROTO|help Look via protocol\n"
2422 " -t --type=TYPE|help Query RR with DNS type\n"
2423 " -c --class=CLASS|help Query RR with DNS class\n"
2424 " --service Resolve service (SRV)\n"
2425 " --service-address=BOOL Resolve address for services (default: yes)\n"
2426 " --service-txt=BOOL Resolve TXT records for services (default: yes)\n"
2427 " --openpgp Query OpenPGP public key\n"
2428 " --tlsa Query TLS public key\n"
2429 " --cname=BOOL Follow CNAME redirects (default: yes)\n"
2430 " --search=BOOL Use search domains for single-label names\n"
2431 " (default: yes)\n"
2432 " --raw[=payload|packet] Dump the answer as binary data\n"
2433 " --legend=BOOL Print headers and additional info (default: yes)\n"
2434 " --statistics Show resolver statistics\n"
2435 " --reset-statistics Reset resolver statistics\n"
2436 " --status Show link and server status\n"
2437 " --flush-caches Flush all local DNS caches\n"
2438 " --reset-server-features\n"
2439 " Forget learnt DNS server feature levels\n"
2440 " --set-dns=SERVER Set per-interface DNS server address\n"
2441 " --set-domain=DOMAIN Set per-interface search domain\n"
2442 " --set-llmnr=MODE Set per-interface LLMNR mode\n"
2443 " --set-mdns=MODE Set per-interface MulticastDNS mode\n"
2444 " --set-dnsovertls=MODE Set per-interface DNS-over-TLS mode\n"
2445 " --set-dnssec=MODE Set per-interface DNSSEC mode\n"
2446 " --set-nta=DOMAIN Set per-interface DNSSEC NTA\n"
2447 " --revert Revert per-interface configuration\n"
2448 "\nSee the %4$s for details.\n"
2449 , program_invocation_short_name
2450 , ansi_highlight()
2451 , ansi_normal()
2452 , link
2453 );
2454
2455 return 0;
2456 }
2457
2458 static int native_help(void) {
2459 _cleanup_free_ char *link = NULL;
2460 int r;
2461
2462 r = terminal_urlify_man("resolvectl", "1", &link);
2463 if (r < 0)
2464 return log_oom();
2465
2466 printf("%s [OPTIONS...] COMMAND ...\n"
2467 "\n"
2468 "%sSend control commands to the network name resolution manager, or%s\n"
2469 "%sresolve domain names, IPv4 and IPv6 addresses, DNS records, and services.%s\n"
2470 "\nCommands:\n"
2471 " query HOSTNAME|ADDRESS... Resolve domain names, IPv4 and IPv6 addresses\n"
2472 " service [[NAME] TYPE] DOMAIN Resolve service (SRV)\n"
2473 " openpgp EMAIL@DOMAIN... Query OpenPGP public key\n"
2474 " tlsa DOMAIN[:PORT]... Query TLS public key\n"
2475 " status [LINK...] Show link and server status\n"
2476 " statistics Show resolver statistics\n"
2477 " reset-statistics Reset resolver statistics\n"
2478 " flush-caches Flush all local DNS caches\n"
2479 " reset-server-features Forget learnt DNS server feature levels\n"
2480 " dns [LINK [SERVER...]] Get/set per-interface DNS server address\n"
2481 " domain [LINK [DOMAIN...]] Get/set per-interface search domain\n"
2482 " default-route [LINK [BOOL]] Get/set per-interface default route flag\n"
2483 " llmnr [LINK [MODE]] Get/set per-interface LLMNR mode\n"
2484 " mdns [LINK [MODE]] Get/set per-interface MulticastDNS mode\n"
2485 " dnsovertls [LINK [MODE]] Get/set per-interface DNS-over-TLS mode\n"
2486 " dnssec [LINK [MODE]] Get/set per-interface DNSSEC mode\n"
2487 " nta [LINK [DOMAIN...]] Get/set per-interface DNSSEC NTA\n"
2488 " revert LINK Revert per-interface configuration\n"
2489 "\nOptions:\n"
2490 " -h --help Show this help\n"
2491 " --version Show package version\n"
2492 " --no-pager Do not pipe output into a pager\n"
2493 " -4 Resolve IPv4 addresses\n"
2494 " -6 Resolve IPv6 addresses\n"
2495 " -i --interface=INTERFACE Look on interface\n"
2496 " -p --protocol=PROTO|help Look via protocol\n"
2497 " -t --type=TYPE|help Query RR with DNS type\n"
2498 " -c --class=CLASS|help Query RR with DNS class\n"
2499 " --service-address=BOOL Resolve address for services (default: yes)\n"
2500 " --service-txt=BOOL Resolve TXT records for services (default: yes)\n"
2501 " --cname=BOOL Follow CNAME redirects (default: yes)\n"
2502 " --search=BOOL Use search domains for single-label names\n"
2503 " (default: yes)\n"
2504 " --raw[=payload|packet] Dump the answer as binary data\n"
2505 " --legend=BOOL Print headers and additional info (default: yes)\n"
2506 "\nSee the %s for details.\n"
2507 , program_invocation_short_name
2508 , ansi_highlight()
2509 , ansi_normal()
2510 , ansi_highlight()
2511 , ansi_normal()
2512 , link
2513 );
2514
2515 return 0;
2516 }
2517
2518 static int verb_help(int argc, char **argv, void *userdata) {
2519 return native_help();
2520 }
2521
2522 static int compat_parse_argv(int argc, char *argv[]) {
2523 enum {
2524 ARG_VERSION = 0x100,
2525 ARG_LEGEND,
2526 ARG_SERVICE,
2527 ARG_CNAME,
2528 ARG_SERVICE_ADDRESS,
2529 ARG_SERVICE_TXT,
2530 ARG_OPENPGP,
2531 ARG_TLSA,
2532 ARG_RAW,
2533 ARG_SEARCH,
2534 ARG_STATISTICS,
2535 ARG_RESET_STATISTICS,
2536 ARG_STATUS,
2537 ARG_FLUSH_CACHES,
2538 ARG_RESET_SERVER_FEATURES,
2539 ARG_NO_PAGER,
2540 ARG_SET_DNS,
2541 ARG_SET_DOMAIN,
2542 ARG_SET_LLMNR,
2543 ARG_SET_MDNS,
2544 ARG_SET_PRIVATE,
2545 ARG_SET_DNSSEC,
2546 ARG_SET_NTA,
2547 ARG_REVERT_LINK,
2548 };
2549
2550 static const struct option options[] = {
2551 { "help", no_argument, NULL, 'h' },
2552 { "version", no_argument, NULL, ARG_VERSION },
2553 { "type", required_argument, NULL, 't' },
2554 { "class", required_argument, NULL, 'c' },
2555 { "legend", required_argument, NULL, ARG_LEGEND },
2556 { "interface", required_argument, NULL, 'i' },
2557 { "protocol", required_argument, NULL, 'p' },
2558 { "cname", required_argument, NULL, ARG_CNAME },
2559 { "service", no_argument, NULL, ARG_SERVICE },
2560 { "service-address", required_argument, NULL, ARG_SERVICE_ADDRESS },
2561 { "service-txt", required_argument, NULL, ARG_SERVICE_TXT },
2562 { "openpgp", no_argument, NULL, ARG_OPENPGP },
2563 { "tlsa", optional_argument, NULL, ARG_TLSA },
2564 { "raw", optional_argument, NULL, ARG_RAW },
2565 { "search", required_argument, NULL, ARG_SEARCH },
2566 { "statistics", no_argument, NULL, ARG_STATISTICS, },
2567 { "reset-statistics", no_argument, NULL, ARG_RESET_STATISTICS },
2568 { "status", no_argument, NULL, ARG_STATUS },
2569 { "flush-caches", no_argument, NULL, ARG_FLUSH_CACHES },
2570 { "reset-server-features", no_argument, NULL, ARG_RESET_SERVER_FEATURES },
2571 { "no-pager", no_argument, NULL, ARG_NO_PAGER },
2572 { "set-dns", required_argument, NULL, ARG_SET_DNS },
2573 { "set-domain", required_argument, NULL, ARG_SET_DOMAIN },
2574 { "set-llmnr", required_argument, NULL, ARG_SET_LLMNR },
2575 { "set-mdns", required_argument, NULL, ARG_SET_MDNS },
2576 { "set-dnsovertls", required_argument, NULL, ARG_SET_PRIVATE },
2577 { "set-dnssec", required_argument, NULL, ARG_SET_DNSSEC },
2578 { "set-nta", required_argument, NULL, ARG_SET_NTA },
2579 { "revert", no_argument, NULL, ARG_REVERT_LINK },
2580 {}
2581 };
2582
2583 int c, r;
2584
2585 assert(argc >= 0);
2586 assert(argv);
2587
2588 while ((c = getopt_long(argc, argv, "h46i:t:c:p:", options, NULL)) >= 0)
2589 switch(c) {
2590
2591 case 'h':
2592 return compat_help();
2593
2594 case ARG_VERSION:
2595 return version();
2596
2597 case '4':
2598 arg_family = AF_INET;
2599 break;
2600
2601 case '6':
2602 arg_family = AF_INET6;
2603 break;
2604
2605 case 'i':
2606 r = ifname_mangle(optarg);
2607 if (r < 0)
2608 return r;
2609 break;
2610
2611 case 't':
2612 if (streq(optarg, "help")) {
2613 help_dns_types();
2614 return 0;
2615 }
2616
2617 r = dns_type_from_string(optarg);
2618 if (r < 0) {
2619 log_error("Failed to parse RR record type %s", optarg);
2620 return r;
2621 }
2622 arg_type = (uint16_t) r;
2623 assert((int) arg_type == r);
2624
2625 arg_mode = MODE_RESOLVE_RECORD;
2626 break;
2627
2628 case 'c':
2629 if (streq(optarg, "help")) {
2630 help_dns_classes();
2631 return 0;
2632 }
2633
2634 r = dns_class_from_string(optarg);
2635 if (r < 0) {
2636 log_error("Failed to parse RR record class %s", optarg);
2637 return r;
2638 }
2639 arg_class = (uint16_t) r;
2640 assert((int) arg_class == r);
2641
2642 break;
2643
2644 case ARG_LEGEND:
2645 r = parse_boolean(optarg);
2646 if (r < 0)
2647 return log_error_errno(r, "Failed to parse --legend= argument");
2648
2649 arg_legend = r;
2650 break;
2651
2652 case 'p':
2653 if (streq(optarg, "help")) {
2654 help_protocol_types();
2655 return 0;
2656 } else if (streq(optarg, "dns"))
2657 arg_flags |= SD_RESOLVED_DNS;
2658 else if (streq(optarg, "llmnr"))
2659 arg_flags |= SD_RESOLVED_LLMNR;
2660 else if (streq(optarg, "llmnr-ipv4"))
2661 arg_flags |= SD_RESOLVED_LLMNR_IPV4;
2662 else if (streq(optarg, "llmnr-ipv6"))
2663 arg_flags |= SD_RESOLVED_LLMNR_IPV6;
2664 else if (streq(optarg, "mdns"))
2665 arg_flags |= SD_RESOLVED_MDNS;
2666 else if (streq(optarg, "mdns-ipv4"))
2667 arg_flags |= SD_RESOLVED_MDNS_IPV4;
2668 else if (streq(optarg, "mdns-ipv6"))
2669 arg_flags |= SD_RESOLVED_MDNS_IPV6;
2670 else
2671 return log_error_errno(SYNTHETIC_ERRNO(EINVAL),
2672 "Unknown protocol specifier: %s", optarg);
2673
2674 break;
2675
2676 case ARG_SERVICE:
2677 arg_mode = MODE_RESOLVE_SERVICE;
2678 break;
2679
2680 case ARG_OPENPGP:
2681 arg_mode = MODE_RESOLVE_OPENPGP;
2682 break;
2683
2684 case ARG_TLSA:
2685 arg_mode = MODE_RESOLVE_TLSA;
2686 if (!optarg || service_family_is_valid(optarg))
2687 arg_service_family = optarg;
2688 else
2689 return log_error_errno(SYNTHETIC_ERRNO(EINVAL),
2690 "Unknown service family \"%s\".", optarg);
2691 break;
2692
2693 case ARG_RAW:
2694 if (on_tty())
2695 return log_error_errno(SYNTHETIC_ERRNO(ENOTTY),
2696 "Refusing to write binary data to tty.");
2697
2698 if (optarg == NULL || streq(optarg, "payload"))
2699 arg_raw = RAW_PAYLOAD;
2700 else if (streq(optarg, "packet"))
2701 arg_raw = RAW_PACKET;
2702 else
2703 return log_error_errno(SYNTHETIC_ERRNO(EINVAL),
2704 "Unknown --raw specifier \"%s\".",
2705 optarg);
2706
2707 arg_legend = false;
2708 break;
2709
2710 case ARG_CNAME:
2711 r = parse_boolean(optarg);
2712 if (r < 0)
2713 return log_error_errno(r, "Failed to parse --cname= argument.");
2714 SET_FLAG(arg_flags, SD_RESOLVED_NO_CNAME, r == 0);
2715 break;
2716
2717 case ARG_SERVICE_ADDRESS:
2718 r = parse_boolean(optarg);
2719 if (r < 0)
2720 return log_error_errno(r, "Failed to parse --service-address= argument.");
2721 SET_FLAG(arg_flags, SD_RESOLVED_NO_ADDRESS, r == 0);
2722 break;
2723
2724 case ARG_SERVICE_TXT:
2725 r = parse_boolean(optarg);
2726 if (r < 0)
2727 return log_error_errno(r, "Failed to parse --service-txt= argument.");
2728 SET_FLAG(arg_flags, SD_RESOLVED_NO_TXT, r == 0);
2729 break;
2730
2731 case ARG_SEARCH:
2732 r = parse_boolean(optarg);
2733 if (r < 0)
2734 return log_error_errno(r, "Failed to parse --search argument.");
2735 SET_FLAG(arg_flags, SD_RESOLVED_NO_SEARCH, r == 0);
2736 break;
2737
2738 case ARG_STATISTICS:
2739 arg_mode = MODE_STATISTICS;
2740 break;
2741
2742 case ARG_RESET_STATISTICS:
2743 arg_mode = MODE_RESET_STATISTICS;
2744 break;
2745
2746 case ARG_FLUSH_CACHES:
2747 arg_mode = MODE_FLUSH_CACHES;
2748 break;
2749
2750 case ARG_RESET_SERVER_FEATURES:
2751 arg_mode = MODE_RESET_SERVER_FEATURES;
2752 break;
2753
2754 case ARG_STATUS:
2755 arg_mode = MODE_STATUS;
2756 break;
2757
2758 case ARG_NO_PAGER:
2759 arg_pager_flags |= PAGER_DISABLE;
2760 break;
2761
2762 case ARG_SET_DNS:
2763 r = strv_extend(&arg_set_dns, optarg);
2764 if (r < 0)
2765 return log_oom();
2766
2767 arg_mode = MODE_SET_LINK;
2768 break;
2769
2770 case ARG_SET_DOMAIN:
2771 r = strv_extend(&arg_set_domain, optarg);
2772 if (r < 0)
2773 return log_oom();
2774
2775 arg_mode = MODE_SET_LINK;
2776 break;
2777
2778 case ARG_SET_LLMNR:
2779 arg_set_llmnr = optarg;
2780 arg_mode = MODE_SET_LINK;
2781 break;
2782
2783 case ARG_SET_MDNS:
2784 arg_set_mdns = optarg;
2785 arg_mode = MODE_SET_LINK;
2786 break;
2787
2788 case ARG_SET_PRIVATE:
2789 arg_set_dns_over_tls = optarg;
2790 arg_mode = MODE_SET_LINK;
2791 break;
2792
2793 case ARG_SET_DNSSEC:
2794 arg_set_dnssec = optarg;
2795 arg_mode = MODE_SET_LINK;
2796 break;
2797
2798 case ARG_SET_NTA:
2799 r = strv_extend(&arg_set_nta, optarg);
2800 if (r < 0)
2801 return log_oom();
2802
2803 arg_mode = MODE_SET_LINK;
2804 break;
2805
2806 case ARG_REVERT_LINK:
2807 arg_mode = MODE_REVERT_LINK;
2808 break;
2809
2810 case '?':
2811 return -EINVAL;
2812
2813 default:
2814 assert_not_reached("Unhandled option");
2815 }
2816
2817 if (arg_type == 0 && arg_class != 0)
2818 return log_error_errno(SYNTHETIC_ERRNO(EINVAL),
2819 "--class= may only be used in conjunction with --type=.");
2820
2821 if (arg_type != 0 && arg_mode == MODE_RESOLVE_SERVICE)
2822 return log_error_errno(SYNTHETIC_ERRNO(EINVAL),
2823 "--service and --type= may not be combined.");
2824
2825 if (arg_type != 0 && arg_class == 0)
2826 arg_class = DNS_CLASS_IN;
2827
2828 if (arg_class != 0 && arg_type == 0)
2829 arg_type = DNS_TYPE_A;
2830
2831 if (IN_SET(arg_mode, MODE_SET_LINK, MODE_REVERT_LINK)) {
2832
2833 if (arg_ifindex <= 0)
2834 return log_error_errno(SYNTHETIC_ERRNO(EINVAL),
2835 "--set-dns=, --set-domain=, --set-llmnr=, --set-mdns=, --set-dnsovertls=, --set-dnssec=, --set-nta= and --revert require --interface=.");
2836 }
2837
2838 return 1 /* work to do */;
2839 }
2840
2841 static int native_parse_argv(int argc, char *argv[]) {
2842 enum {
2843 ARG_VERSION = 0x100,
2844 ARG_LEGEND,
2845 ARG_CNAME,
2846 ARG_SERVICE_ADDRESS,
2847 ARG_SERVICE_TXT,
2848 ARG_RAW,
2849 ARG_SEARCH,
2850 ARG_NO_PAGER,
2851 };
2852
2853 static const struct option options[] = {
2854 { "help", no_argument, NULL, 'h' },
2855 { "version", no_argument, NULL, ARG_VERSION },
2856 { "type", required_argument, NULL, 't' },
2857 { "class", required_argument, NULL, 'c' },
2858 { "legend", required_argument, NULL, ARG_LEGEND },
2859 { "interface", required_argument, NULL, 'i' },
2860 { "protocol", required_argument, NULL, 'p' },
2861 { "cname", required_argument, NULL, ARG_CNAME },
2862 { "service-address", required_argument, NULL, ARG_SERVICE_ADDRESS },
2863 { "service-txt", required_argument, NULL, ARG_SERVICE_TXT },
2864 { "raw", optional_argument, NULL, ARG_RAW },
2865 { "search", required_argument, NULL, ARG_SEARCH },
2866 { "no-pager", no_argument, NULL, ARG_NO_PAGER },
2867 {}
2868 };
2869
2870 int c, r;
2871
2872 assert(argc >= 0);
2873 assert(argv);
2874
2875 while ((c = getopt_long(argc, argv, "h46i:t:c:p:", options, NULL)) >= 0)
2876 switch(c) {
2877
2878 case 'h':
2879 return native_help();
2880
2881 case ARG_VERSION:
2882 return version();
2883
2884 case '4':
2885 arg_family = AF_INET;
2886 break;
2887
2888 case '6':
2889 arg_family = AF_INET6;
2890 break;
2891
2892 case 'i':
2893 r = ifname_mangle(optarg);
2894 if (r < 0)
2895 return r;
2896 break;
2897
2898 case 't':
2899 if (streq(optarg, "help")) {
2900 help_dns_types();
2901 return 0;
2902 }
2903
2904 r = dns_type_from_string(optarg);
2905 if (r < 0) {
2906 log_error("Failed to parse RR record type %s", optarg);
2907 return r;
2908 }
2909 arg_type = (uint16_t) r;
2910 assert((int) arg_type == r);
2911
2912 break;
2913
2914 case 'c':
2915 if (streq(optarg, "help")) {
2916 help_dns_classes();
2917 return 0;
2918 }
2919
2920 r = dns_class_from_string(optarg);
2921 if (r < 0) {
2922 log_error("Failed to parse RR record class %s", optarg);
2923 return r;
2924 }
2925 arg_class = (uint16_t) r;
2926 assert((int) arg_class == r);
2927
2928 break;
2929
2930 case ARG_LEGEND:
2931 r = parse_boolean(optarg);
2932 if (r < 0)
2933 return log_error_errno(r, "Failed to parse --legend= argument");
2934
2935 arg_legend = r;
2936 break;
2937
2938 case 'p':
2939 if (streq(optarg, "help")) {
2940 help_protocol_types();
2941 return 0;
2942 } else if (streq(optarg, "dns"))
2943 arg_flags |= SD_RESOLVED_DNS;
2944 else if (streq(optarg, "llmnr"))
2945 arg_flags |= SD_RESOLVED_LLMNR;
2946 else if (streq(optarg, "llmnr-ipv4"))
2947 arg_flags |= SD_RESOLVED_LLMNR_IPV4;
2948 else if (streq(optarg, "llmnr-ipv6"))
2949 arg_flags |= SD_RESOLVED_LLMNR_IPV6;
2950 else if (streq(optarg, "mdns"))
2951 arg_flags |= SD_RESOLVED_MDNS;
2952 else if (streq(optarg, "mdns-ipv4"))
2953 arg_flags |= SD_RESOLVED_MDNS_IPV4;
2954 else if (streq(optarg, "mdns-ipv6"))
2955 arg_flags |= SD_RESOLVED_MDNS_IPV6;
2956 else
2957 return log_error_errno(SYNTHETIC_ERRNO(EINVAL),
2958 "Unknown protocol specifier: %s",
2959 optarg);
2960
2961 break;
2962
2963 case ARG_RAW:
2964 if (on_tty())
2965 return log_error_errno(SYNTHETIC_ERRNO(ENOTTY),
2966 "Refusing to write binary data to tty.");
2967
2968 if (optarg == NULL || streq(optarg, "payload"))
2969 arg_raw = RAW_PAYLOAD;
2970 else if (streq(optarg, "packet"))
2971 arg_raw = RAW_PACKET;
2972 else
2973 return log_error_errno(SYNTHETIC_ERRNO(EINVAL),
2974 "Unknown --raw specifier \"%s\".",
2975 optarg);
2976
2977 arg_legend = false;
2978 break;
2979
2980 case ARG_CNAME:
2981 r = parse_boolean(optarg);
2982 if (r < 0)
2983 return log_error_errno(r, "Failed to parse --cname= argument.");
2984 SET_FLAG(arg_flags, SD_RESOLVED_NO_CNAME, r == 0);
2985 break;
2986
2987 case ARG_SERVICE_ADDRESS:
2988 r = parse_boolean(optarg);
2989 if (r < 0)
2990 return log_error_errno(r, "Failed to parse --service-address= argument.");
2991 SET_FLAG(arg_flags, SD_RESOLVED_NO_ADDRESS, r == 0);
2992 break;
2993
2994 case ARG_SERVICE_TXT:
2995 r = parse_boolean(optarg);
2996 if (r < 0)
2997 return log_error_errno(r, "Failed to parse --service-txt= argument.");
2998 SET_FLAG(arg_flags, SD_RESOLVED_NO_TXT, r == 0);
2999 break;
3000
3001 case ARG_SEARCH:
3002 r = parse_boolean(optarg);
3003 if (r < 0)
3004 return log_error_errno(r, "Failed to parse --search argument.");
3005 SET_FLAG(arg_flags, SD_RESOLVED_NO_SEARCH, r == 0);
3006 break;
3007
3008 case ARG_NO_PAGER:
3009 arg_pager_flags |= PAGER_DISABLE;
3010 break;
3011
3012 case '?':
3013 return -EINVAL;
3014
3015 default:
3016 assert_not_reached("Unhandled option");
3017 }
3018
3019 if (arg_type == 0 && arg_class != 0)
3020 return log_error_errno(SYNTHETIC_ERRNO(EINVAL),
3021 "--class= may only be used in conjunction with --type=.");
3022
3023 if (arg_type != 0 && arg_class == 0)
3024 arg_class = DNS_CLASS_IN;
3025
3026 if (arg_class != 0 && arg_type == 0)
3027 arg_type = DNS_TYPE_A;
3028
3029 return 1 /* work to do */;
3030 }
3031
3032 static int native_main(int argc, char *argv[], sd_bus *bus) {
3033
3034 static const Verb verbs[] = {
3035 { "help", VERB_ANY, VERB_ANY, 0, verb_help },
3036 { "status", VERB_ANY, VERB_ANY, VERB_DEFAULT, verb_status },
3037 { "query", 2, VERB_ANY, 0, verb_query },
3038 { "service", 2, 4, 0, verb_service },
3039 { "openpgp", 2, VERB_ANY, 0, verb_openpgp },
3040 { "tlsa", 2, VERB_ANY, 0, verb_tlsa },
3041 { "statistics", VERB_ANY, 1, 0, show_statistics },
3042 { "reset-statistics", VERB_ANY, 1, 0, reset_statistics },
3043 { "flush-caches", VERB_ANY, 1, 0, flush_caches },
3044 { "reset-server-features", VERB_ANY, 1, 0, reset_server_features },
3045 { "dns", VERB_ANY, VERB_ANY, 0, verb_dns },
3046 { "domain", VERB_ANY, VERB_ANY, 0, verb_domain },
3047 { "default-route", VERB_ANY, 3, 0, verb_default_route },
3048 { "llmnr", VERB_ANY, 3, 0, verb_llmnr },
3049 { "mdns", VERB_ANY, 3, 0, verb_mdns },
3050 { "dnsovertls", VERB_ANY, 3, 0, verb_dns_over_tls },
3051 { "dnssec", VERB_ANY, 3, 0, verb_dnssec },
3052 { "nta", VERB_ANY, VERB_ANY, 0, verb_nta },
3053 { "revert", VERB_ANY, 2, 0, verb_revert_link },
3054 { "log-level", VERB_ANY, 2, 0, verb_log_level },
3055 {}
3056 };
3057
3058 return dispatch_verb(argc, argv, verbs, bus);
3059 }
3060
3061 static int translate(const char *verb, const char *single_arg, size_t num_args, char **args, sd_bus *bus) {
3062 char **fake, **p;
3063 size_t num;
3064
3065 assert(verb);
3066 assert(num_args == 0 || args);
3067
3068 num = !!single_arg + num_args + 1;
3069
3070 p = fake = newa0(char *, num + 1);
3071 *p++ = (char *) verb;
3072 if (single_arg)
3073 *p++ = (char *) single_arg;
3074 for (size_t i = 0; i < num_args; i++)
3075 *p++ = args[i];
3076
3077 optind = 0;
3078 return native_main((int) num, fake, bus);
3079 }
3080
3081 static int compat_main(int argc, char *argv[], sd_bus *bus) {
3082 int r = 0;
3083
3084 switch (arg_mode) {
3085 case MODE_RESOLVE_HOST:
3086 case MODE_RESOLVE_RECORD:
3087 return translate("query", NULL, argc - optind, argv + optind, bus);
3088
3089 case MODE_RESOLVE_SERVICE:
3090 return translate("service", NULL, argc - optind, argv + optind, bus);
3091
3092 case MODE_RESOLVE_OPENPGP:
3093 return translate("openpgp", NULL, argc - optind, argv + optind, bus);
3094
3095 case MODE_RESOLVE_TLSA:
3096 return translate("tlsa", arg_service_family, argc - optind, argv + optind, bus);
3097
3098 case MODE_STATISTICS:
3099 return translate("statistics", NULL, 0, NULL, bus);
3100
3101 case MODE_RESET_STATISTICS:
3102 return translate("reset-statistics", NULL, 0, NULL, bus);
3103
3104 case MODE_FLUSH_CACHES:
3105 return translate("flush-caches", NULL, 0, NULL, bus);
3106
3107 case MODE_RESET_SERVER_FEATURES:
3108 return translate("reset-server-features", NULL, 0, NULL, bus);
3109
3110 case MODE_STATUS:
3111 return translate("status", NULL, argc - optind, argv + optind, bus);
3112
3113 case MODE_SET_LINK:
3114 assert(arg_ifname);
3115
3116 if (arg_set_dns) {
3117 r = translate("dns", arg_ifname, strv_length(arg_set_dns), arg_set_dns, bus);
3118 if (r < 0)
3119 return r;
3120 }
3121
3122 if (arg_set_domain) {
3123 r = translate("domain", arg_ifname, strv_length(arg_set_domain), arg_set_domain, bus);
3124 if (r < 0)
3125 return r;
3126 }
3127
3128 if (arg_set_nta) {
3129 r = translate("nta", arg_ifname, strv_length(arg_set_nta), arg_set_nta, bus);
3130 if (r < 0)
3131 return r;
3132 }
3133
3134 if (arg_set_llmnr) {
3135 r = translate("llmnr", arg_ifname, 1, (char **) &arg_set_llmnr, bus);
3136 if (r < 0)
3137 return r;
3138 }
3139
3140 if (arg_set_mdns) {
3141 r = translate("mdns", arg_ifname, 1, (char **) &arg_set_mdns, bus);
3142 if (r < 0)
3143 return r;
3144 }
3145
3146 if (arg_set_dns_over_tls) {
3147 r = translate("dnsovertls", arg_ifname, 1, (char **) &arg_set_dns_over_tls, bus);
3148 if (r < 0)
3149 return r;
3150 }
3151
3152 if (arg_set_dnssec) {
3153 r = translate("dnssec", arg_ifname, 1, (char **) &arg_set_dnssec, bus);
3154 if (r < 0)
3155 return r;
3156 }
3157
3158 return r;
3159
3160 case MODE_REVERT_LINK:
3161 assert(arg_ifname);
3162
3163 return translate("revert", arg_ifname, 0, NULL, bus);
3164
3165 case _MODE_INVALID:
3166 assert_not_reached("invalid mode");
3167 }
3168
3169 return 0;
3170 }
3171
3172 static int run(int argc, char **argv) {
3173 _cleanup_(sd_bus_flush_close_unrefp) sd_bus *bus = NULL;
3174 int r;
3175
3176 setlocale(LC_ALL, "");
3177 log_show_color(true);
3178 log_parse_environment();
3179 log_open();
3180
3181 if (streq(program_invocation_short_name, "resolvconf"))
3182 r = resolvconf_parse_argv(argc, argv);
3183 else if (streq(program_invocation_short_name, "systemd-resolve"))
3184 r = compat_parse_argv(argc, argv);
3185 else
3186 r = native_parse_argv(argc, argv);
3187 if (r <= 0)
3188 return r;
3189
3190 r = sd_bus_open_system(&bus);
3191 if (r < 0)
3192 return log_error_errno(r, "sd_bus_open_system: %m");
3193
3194 if (STR_IN_SET(program_invocation_short_name, "systemd-resolve", "resolvconf"))
3195 return compat_main(argc, argv, bus);
3196
3197 return native_main(argc, argv, bus);
3198 }
3199
3200 DEFINE_MAIN_FUNCTION(run);
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