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Merge pull request #2790 from ronnychevalier/rc/systemctl_missing_oom_check
[thirdparty/systemd.git] / src / resolve / resolve-tool.c
CommitLineData
bdef7319
ZJS		 1/***
2 This file is part of systemd.
3
4 Copyright 2014 Zbigniew Jędrzejewski-Szmek
5
6 systemd is free software; you can redistribute it and/or modify it
7 under the terms of the GNU Lesser General Public License as published by
8 the Free Software Foundation; either version 2.1 of the License, or
9 (at your option) any later version.
10
11 systemd is distributed in the hope that it will be useful, but
12 WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 Lesser General Public License for more details.
15
16 You should have received a copy of the GNU Lesser General Public License
17 along with systemd; If not, see <http://www.gnu.org/licenses/>.
18***/
19
4ac2ca1b 20#include <gcrypt.h>
bdef7319 21#include <getopt.h>
cf0fbc49 22#include <net/if.h>
bdef7319
ZJS		 23
24#include "sd-bus.h"
3f6fd1ba
LP		 25
26#include "af-list.h"
b5efdb8a 27#include "alloc-util.h"
bdef7319 28#include "bus-error.h"
3f6fd1ba 29#include "bus-util.h"
45ec7efb 30#include "escape.h"
bdef7319 31#include "in-addr-util.h"
4ac2ca1b 32#include "gcrypt-util.h"
6bedfcbb 33#include "parse-util.h"
51323288 34#include "resolved-def.h"
3f6fd1ba 35#include "resolved-dns-packet.h"
a150ff5e 36#include "terminal-util.h"
2d4c5cbc 37
bdef7319
ZJS		 38#define DNS_CALL_TIMEOUT_USEC (45*USEC_PER_SEC)
39
40static int arg_family = AF_UNSPEC;
41static int arg_ifindex = 0;
4b548ef3 42static uint16_t arg_type = 0;
2d4c5cbc 43static uint16_t arg_class = 0;
b93312f5 44static bool arg_legend = true;
51323288 45static uint64_t arg_flags = 0;
dab48ea6 46
82d1d240
ZJS		 47typedef enum ServiceFamily {
48 SERVICE_FAMILY_TCP,
49 SERVICE_FAMILY_UDP,
50 SERVICE_FAMILY_SCTP,
51 _SERVICE_FAMILY_INVALID = -1,
52} ServiceFamily;
53static ServiceFamily arg_service_family = SERVICE_FAMILY_TCP;
54
dab48ea6
ZJS		 55typedef enum RawType {
56 RAW_NONE,
57 RAW_PAYLOAD,
58 RAW_PACKET,
59} RawType;
dab48ea6 60static RawType arg_raw = RAW_NONE;
a150ff5e
LP		 61
62static enum {
63 MODE_RESOLVE_HOST,
64 MODE_RESOLVE_RECORD,
65 MODE_RESOLVE_SERVICE,
4ac2ca1b 66 MODE_RESOLVE_OPENPGP,
82d1d240 67 MODE_RESOLVE_TLSA,
a150ff5e
LP		 68 MODE_STATISTICS,
69 MODE_RESET_STATISTICS,
70} arg_mode = MODE_RESOLVE_HOST;
51323288 71
82d1d240
ZJS		 72static ServiceFamily service_family_from_string(const char *s) {
73 if (s == NULL || streq(s, "tcp"))
74 return SERVICE_FAMILY_TCP;
75 if (streq(s, "udp"))
76 return SERVICE_FAMILY_UDP;
77 if (streq(s, "sctp"))
78 return SERVICE_FAMILY_SCTP;
79 return _SERVICE_FAMILY_INVALID;
80}
81
82static const char* service_family_to_string(ServiceFamily service) {
83 switch(service) {
84 case SERVICE_FAMILY_TCP:
85 return "_tcp";
86 case SERVICE_FAMILY_UDP:
87 return "_udp";
88 case SERVICE_FAMILY_SCTP:
89 return "_sctp";
90 default:
91 assert_not_reached("invalid service");
92 }
93}
94
78c6a153 95static void print_source(uint64_t flags, usec_t rtt) {
74998408 96 char rtt_str[FORMAT_TIMESTAMP_MAX];
51323288
LP		 97
98 if (!arg_legend)
99 return;
100
78c6a153 101 if (flags == 0)
51323288
LP		 102 return;
103
104 fputs("\n-- Information acquired via", stdout);
105
106 if (flags != 0)
786c8e9f 107 printf(" protocol%s%s%s%s%s",
51323288
LP		 108 flags & SD_RESOLVED_DNS ? " DNS" :"",
109 flags & SD_RESOLVED_LLMNR_IPV4 ? " LLMNR/IPv4" : "",
786c8e9f
LP		 110 flags & SD_RESOLVED_LLMNR_IPV6 ? " LLMNR/IPv6" : "",
111 flags & SD_RESOLVED_MDNS_IPV4 ? "mDNS/IPv4" : "",
112 flags & SD_RESOLVED_MDNS_IPV6 ? "mDNS/IPv6" : "");
51323288 113
74998408
TG		 114 assert_se(format_timespan(rtt_str, sizeof(rtt_str), rtt, 100));
115
116 printf(" in %s", rtt_str);
117
51323288
LP		 118 fputc('.', stdout);
119 fputc('\n', stdout);
931851e8
LP		 120
121 printf("-- Data is authenticated: %s\n", yes_no(flags & SD_RESOLVED_AUTHENTICATED));
51323288 122}
bdef7319 123
79266746 124static int resolve_host(sd_bus *bus, const char *name) {
bdef7319 125
4afd3348
LP		 126 _cleanup_(sd_bus_message_unrefp) sd_bus_message *req = NULL, *reply = NULL;
127 _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
79266746 128 const char *canonical = NULL;
78c6a153 129 char ifname[IF_NAMESIZE] = "";
bdef7319 130 unsigned c = 0;
78c6a153 131 int r;
51323288 132 uint64_t flags;
74998408 133 usec_t ts;
bdef7319
ZJS		 134
135 assert(name);
136
78c6a153
LP		 137 if (arg_ifindex > 0 && !if_indextoname(arg_ifindex, ifname))
138 return log_error_errno(errno, "Failed to resolve interface name for index %i: %m", arg_ifindex);
139
140 log_debug("Resolving %s (family %s, interface %s).", name, af_to_name(arg_family) ?: "*", isempty(ifname) ? "*" : ifname);
bdef7319
ZJS		 141
142 r = sd_bus_message_new_method_call(
143 bus,
144 &req,
145 "org.freedesktop.resolve1",
146 "/org/freedesktop/resolve1",
147 "org.freedesktop.resolve1.Manager",
148 "ResolveHostname");
02dd6e18
LP		 149 if (r < 0)
150 return bus_log_create_error(r);
bdef7319 151
51323288 152 r = sd_bus_message_append(req, "isit", arg_ifindex, name, arg_family, arg_flags);
02dd6e18
LP		 153 if (r < 0)
154 return bus_log_create_error(r);
bdef7319 155
74998408
TG		 156 ts = now(CLOCK_MONOTONIC);
157
bdef7319 158 r = sd_bus_call(bus, req, DNS_CALL_TIMEOUT_USEC, &error, &reply);
45ec7efb
LP		 159 if (r < 0)
160 return log_error_errno(r, "%s: resolve call failed: %s", name, bus_error_message(&error, r));
bdef7319 161
74998408
TG		 162 ts = now(CLOCK_MONOTONIC) - ts;
163
78c6a153 164 r = sd_bus_message_enter_container(reply, 'a', "(iiay)");
02dd6e18
LP		 165 if (r < 0)
166 return bus_log_parse_error(r);
bdef7319 167
78c6a153 168 while ((r = sd_bus_message_enter_container(reply, 'r', "iiay")) > 0) {
bdef7319 169 _cleanup_free_ char *pretty = NULL;
78c6a153 170 int ifindex, family;
45ec7efb
LP		 171 const void *a;
172 size_t sz;
78c6a153
LP		 173
174 assert_cc(sizeof(int) == sizeof(int32_t));
bdef7319 175
78c6a153 176 r = sd_bus_message_read(reply, "ii", &ifindex, &family);
02dd6e18
LP		 177 if (r < 0)
178 return bus_log_parse_error(r);
bdef7319
ZJS		 179
180 r = sd_bus_message_read_array(reply, 'y', &a, &sz);
02dd6e18
LP		 181 if (r < 0)
182 return bus_log_parse_error(r);
bdef7319 183
bdef7319 184 r = sd_bus_message_exit_container(reply);
02dd6e18
LP		 185 if (r < 0)
186 return bus_log_parse_error(r);
bdef7319 187
79266746 188 if (!IN_SET(family, AF_INET, AF_INET6)) {
be636413 189 log_debug("%s: skipping entry with family %d (%s)", name, family, af_to_name(family) ?: "unknown");
bdef7319
ZJS		 190 continue;
191 }
192
193 if (sz != FAMILY_ADDRESS_SIZE(family)) {
78c6a153 194 log_error("%s: systemd-resolved returned address of invalid size %zu for family %s", name, sz, af_to_name(family) ?: "unknown");
45ec7efb 195 return -EINVAL;
bdef7319
ZJS		 196 }
197
78c6a153
LP		 198 ifname[0] = 0;
199 if (ifindex > 0 && !if_indextoname(ifindex, ifname))
200 log_warning_errno(errno, "Failed to resolve interface name for index %i: %m", ifindex);
bdef7319 201
bdef7319 202 r = in_addr_to_string(family, a, &pretty);
78c6a153
LP		 203 if (r < 0)
204 return log_error_errno(r, "Failed to print address for %s: %m", name);
bdef7319 205
79266746
LP		 206 printf("%*s%s %s%s%s\n",
207 (int) strlen(name), c == 0 ? name : "", c == 0 ? ":" : " ",
208 pretty,
209 isempty(ifname) ? "" : "%", ifname);
bdef7319
ZJS		 210
211 c++;
212 }
79266746
LP		 213 if (r < 0)
214 return bus_log_parse_error(r);
215
216 r = sd_bus_message_exit_container(reply);
217 if (r < 0)
218 return bus_log_parse_error(r);
219
51323288 220 r = sd_bus_message_read(reply, "st", &canonical, &flags);
79266746
LP		 221 if (r < 0)
222 return bus_log_parse_error(r);
223
ece174c5 224 if (!streq(name, canonical))
79266746
LP		 225 printf("%*s%s (%s)\n",
226 (int) strlen(name), c == 0 ? name : "", c == 0 ? ":" : " ",
227 canonical);
bdef7319
ZJS		 228
229 if (c == 0) {
230 log_error("%s: no addresses found", name);
79266746
LP		 231 return -ESRCH;
232 }
233
78c6a153 234 print_source(flags, ts);
51323288 235
79266746
LP		 236 return 0;
237}
238
239static int resolve_address(sd_bus *bus, int family, const union in_addr_union *address, int ifindex) {
4afd3348
LP		 240 _cleanup_(sd_bus_message_unrefp) sd_bus_message *req = NULL, *reply = NULL;
241 _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
79266746
LP		 242 _cleanup_free_ char *pretty = NULL;
243 char ifname[IF_NAMESIZE] = "";
51323288 244 uint64_t flags;
79266746 245 unsigned c = 0;
74998408 246 usec_t ts;
79266746
LP		 247 int r;
248
249 assert(bus);
250 assert(IN_SET(family, AF_INET, AF_INET6));
251 assert(address);
252
78c6a153
LP		 253 if (ifindex <= 0)
254 ifindex = arg_ifindex;
255
79266746
LP		 256 r = in_addr_to_string(family, address, &pretty);
257 if (r < 0)
258 return log_oom();
259
78c6a153
LP		 260 if (ifindex > 0 && !if_indextoname(ifindex, ifname))
261 return log_error_errno(errno, "Failed to resolve interface name for index %i: %m", ifindex);
79266746
LP		 262
263 log_debug("Resolving %s%s%s.", pretty, isempty(ifname) ? "" : "%", ifname);
264
265 r = sd_bus_message_new_method_call(
266 bus,
267 &req,
268 "org.freedesktop.resolve1",
269 "/org/freedesktop/resolve1",
270 "org.freedesktop.resolve1.Manager",
271 "ResolveAddress");
272 if (r < 0)
273 return bus_log_create_error(r);
274
51323288 275 r = sd_bus_message_append(req, "ii", ifindex, family);
79266746
LP		 276 if (r < 0)
277 return bus_log_create_error(r);
278
279 r = sd_bus_message_append_array(req, 'y', address, FAMILY_ADDRESS_SIZE(family));
280 if (r < 0)
281 return bus_log_create_error(r);
282
51323288 283 r = sd_bus_message_append(req, "t", arg_flags);
79266746
LP		 284 if (r < 0)
285 return bus_log_create_error(r);
286
74998408
TG		 287 ts = now(CLOCK_MONOTONIC);
288
79266746
LP		 289 r = sd_bus_call(bus, req, DNS_CALL_TIMEOUT_USEC, &error, &reply);
290 if (r < 0) {
291 log_error("%s: resolve call failed: %s", pretty, bus_error_message(&error, r));
292 return r;
293 }
294
74998408
TG		 295 ts = now(CLOCK_MONOTONIC) - ts;
296
78c6a153 297 r = sd_bus_message_enter_container(reply, 'a', "(is)");
79266746
LP		 298 if (r < 0)
299 return bus_log_create_error(r);
300
78c6a153
LP		 301 while ((r = sd_bus_message_enter_container(reply, 'r', "is")) > 0) {
302 const char *n;
303
304 assert_cc(sizeof(int) == sizeof(int32_t));
79266746 305
78c6a153
LP		 306 r = sd_bus_message_read(reply, "is", &ifindex, &n);
307 if (r < 0)
308 return r;
309
310 r = sd_bus_message_exit_container(reply);
311 if (r < 0)
312 return r;
313
314 ifname[0] = 0;
315 if (ifindex > 0 && !if_indextoname(ifindex, ifname))
316 log_warning_errno(errno, "Failed to resolve interface name for index %i: %m", ifindex);
317
318 printf("%*s%*s%*s%s %s\n",
79266746 319 (int) strlen(pretty), c == 0 ? pretty : "",
78c6a153
LP		 320 isempty(ifname) ? 0 : 1, c > 0 || isempty(ifname) ? "" : "%",
321 (int) strlen(ifname), c == 0 ? ifname : "",
79266746
LP		 322 c == 0 ? ":" : " ",
323 n);
324
325 c++;
bdef7319 326 }
79266746
LP		 327 if (r < 0)
328 return bus_log_parse_error(r);
bdef7319 329
02dd6e18
LP		 330 r = sd_bus_message_exit_container(reply);
331 if (r < 0)
332 return bus_log_parse_error(r);
333
51323288
LP		 334 r = sd_bus_message_read(reply, "t", &flags);
335 if (r < 0)
336 return bus_log_parse_error(r);
337
79266746
LP		 338 if (c == 0) {
339 log_error("%s: no names found", pretty);
340 return -ESRCH;
341 }
342
78c6a153 343 print_source(flags, ts);
51323288 344
79266746
LP		 345 return 0;
346}
347
348static int parse_address(const char *s, int *family, union in_addr_union *address, int *ifindex) {
349 const char *percent, *a;
350 int ifi = 0;
351 int r;
352
353 percent = strchr(s, '%');
354 if (percent) {
6ad623a3 355 if (parse_ifindex(percent+1, &ifi) < 0) {
79266746
LP		 356 ifi = if_nametoindex(percent+1);
357 if (ifi <= 0)
358 return -EINVAL;
359 }
360
361 a = strndupa(s, percent - s);
362 } else
363 a = s;
364
365 r = in_addr_from_string_auto(a, family, address);
366 if (r < 0)
367 return r;
368
369 *ifindex = ifi;
02dd6e18 370 return 0;
bdef7319
ZJS		 371}
372
dab48ea6
ZJS		 373static int output_rr_packet(const void *d, size_t l, int ifindex) {
374 _cleanup_(dns_resource_record_unrefp) DnsResourceRecord *rr = NULL;
375 _cleanup_(dns_packet_unrefp) DnsPacket *p = NULL;
376 int r;
377 char ifname[IF_NAMESIZE] = "";
378
379 r = dns_packet_new(&p, DNS_PROTOCOL_DNS, 0);
380 if (r < 0)
381 return log_oom();
382
383 p->refuse_compression = true;
384
385 r = dns_packet_append_blob(p, d, l, NULL);
386 if (r < 0)
387 return log_oom();
388
389 r = dns_packet_read_rr(p, &rr, NULL, NULL);
390 if (r < 0)
391 return log_error_errno(r, "Failed to parse RR: %m");
392
393 if (arg_raw == RAW_PAYLOAD) {
394 void *data;
395 ssize_t k;
396
397 k = dns_resource_record_payload(rr, &data);
398 if (k < 0)
399 return log_error_errno(k, "Cannot dump RR: %m");
400 fwrite(data, 1, k, stdout);
401 } else {
402 const char *s;
403
404 s = dns_resource_record_to_string(rr);
405 if (!s)
406 return log_oom();
407
408 if (ifindex > 0 && !if_indextoname(ifindex, ifname))
409 log_warning_errno(errno, "Failed to resolve interface name for index %i: %m", ifindex);
410
411 printf("%s%s%s\n", s, isempty(ifname) ? "" : " # interface ", ifname);
412 }
413
414 return 0;
415}
416
c1dafe4f 417static int resolve_record(sd_bus *bus, const char *name, uint16_t class, uint16_t type) {
4afd3348
LP		 418 _cleanup_(sd_bus_message_unrefp) sd_bus_message *req = NULL, *reply = NULL;
419 _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
78c6a153 420 char ifname[IF_NAMESIZE] = "";
2d4c5cbc 421 unsigned n = 0;
51323288 422 uint64_t flags;
78c6a153 423 int r;
74998408 424 usec_t ts;
41815a4a 425 bool needs_authentication = false;
2d4c5cbc
LP		 426
427 assert(name);
428
78c6a153
LP		 429 if (arg_ifindex > 0 && !if_indextoname(arg_ifindex, ifname))
430 return log_error_errno(errno, "Failed to resolve interface name for index %i: %m", arg_ifindex);
431
c1dafe4f 432 log_debug("Resolving %s %s %s (interface %s).", name, dns_class_to_string(class), dns_type_to_string(type), isempty(ifname) ? "*" : ifname);
2d4c5cbc
LP		 433
434 r = sd_bus_message_new_method_call(
435 bus,
436 &req,
437 "org.freedesktop.resolve1",
438 "/org/freedesktop/resolve1",
439 "org.freedesktop.resolve1.Manager",
440 "ResolveRecord");
441 if (r < 0)
442 return bus_log_create_error(r);
443
c1dafe4f 444 r = sd_bus_message_append(req, "isqqt", arg_ifindex, name, class, type, arg_flags);
2d4c5cbc
LP		 445 if (r < 0)
446 return bus_log_create_error(r);
447
74998408
TG		 448 ts = now(CLOCK_MONOTONIC);
449
2d4c5cbc
LP		 450 r = sd_bus_call(bus, req, DNS_CALL_TIMEOUT_USEC, &error, &reply);
451 if (r < 0) {
452 log_error("%s: resolve call failed: %s", name, bus_error_message(&error, r));
453 return r;
454 }
455
74998408
TG		 456 ts = now(CLOCK_MONOTONIC) - ts;
457
78c6a153 458 r = sd_bus_message_enter_container(reply, 'a', "(iqqay)");
51323288
LP		 459 if (r < 0)
460 return bus_log_parse_error(r);
461
78c6a153 462 while ((r = sd_bus_message_enter_container(reply, 'r', "iqqay")) > 0) {
2d4c5cbc 463 uint16_t c, t;
78c6a153 464 int ifindex;
2d4c5cbc
LP		 465 const void *d;
466 size_t l;
467
78c6a153
LP		 468 assert_cc(sizeof(int) == sizeof(int32_t));
469
470 r = sd_bus_message_read(reply, "iqq", &ifindex, &c, &t);
2d4c5cbc
LP		 471 if (r < 0)
472 return bus_log_parse_error(r);
473
474 r = sd_bus_message_read_array(reply, 'y', &d, &l);
475 if (r < 0)
476 return bus_log_parse_error(r);
477
478 r = sd_bus_message_exit_container(reply);
479 if (r < 0)
480 return bus_log_parse_error(r);
481
dab48ea6
ZJS		 482 if (arg_raw == RAW_PACKET) {
483 uint64_t u64 = htole64(l);
2d4c5cbc 484
dab48ea6
ZJS		 485 fwrite(&u64, sizeof(u64), 1, stdout);
486 fwrite(d, 1, l, stdout);
2e74028a 487 } else {
dab48ea6
ZJS		 488 r = output_rr_packet(d, l, ifindex);
489 if (r < 0)
490 return r;
2e74028a 491 }
78c6a153 492
41815a4a
LP		 493 if (dns_type_needs_authentication(t))
494 needs_authentication = true;
495
2d4c5cbc
LP		 496 n++;
497 }
498 if (r < 0)
499 return bus_log_parse_error(r);
500
501 r = sd_bus_message_exit_container(reply);
502 if (r < 0)
503 return bus_log_parse_error(r);
504
51323288
LP		 505 r = sd_bus_message_read(reply, "t", &flags);
506 if (r < 0)
507 return bus_log_parse_error(r);
508
2d4c5cbc
LP		 509 if (n == 0) {
510 log_error("%s: no records found", name);
511 return -ESRCH;
512 }
513
78c6a153 514 print_source(flags, ts);
51323288 515
41815a4a
LP		 516 if ((flags & SD_RESOLVED_AUTHENTICATED) == 0 && needs_authentication) {
517 fflush(stdout);
518
519 fprintf(stderr, "\n%s"
520 "WARNING: The resources shown contain cryptographic key data which could not be\n"
521 " authenticated. It is not suitable to authenticate any communication.\n"
522 " This is usually indication that DNSSEC authentication was not enabled\n"
523 " or is not available for the selected protocol or DNS servers.%s\n",
524 ansi_highlight_red(),
525 ansi_normal());
526 }
527
2d4c5cbc
LP		 528 return 0;
529}
530
c1dafe4f
LP		 531static int resolve_rfc4501(sd_bus *bus, const char *name) {
532 uint16_t type = 0, class = 0;
533 const char *p, *q, *n;
534 int r;
535
536 assert(bus);
537 assert(name);
538 assert(startswith(name, "dns:"));
539
540 /* Parse RFC 4501 dns: URIs */
541
542 p = name + 4;
543
544 if (p[0] == '/') {
545 const char *e;
546
547 if (p[1] != '/')
548 goto invalid;
549
550 e = strchr(p + 2, '/');
551 if (!e)
552 goto invalid;
553
554 if (e != p + 2)
555 log_warning("DNS authority specification not supported; ignoring specified authority.");
556
557 p = e + 1;
558 }
559
560 q = strchr(p, '?');
561 if (q) {
562 n = strndupa(p, q - p);
563 q++;
564
565 for (;;) {
566 const char *f;
567
568 f = startswith_no_case(q, "class=");
569 if (f) {
570 _cleanup_free_ char *t = NULL;
571 const char *e;
572
573 if (class != 0) {
574 log_error("DNS class specified twice.");
575 return -EINVAL;
576 }
577
578 e = strchrnul(f, ';');
579 t = strndup(f, e - f);
580 if (!t)
581 return log_oom();
582
583 r = dns_class_from_string(t);
584 if (r < 0) {
585 log_error("Unknown DNS class %s.", t);
586 return -EINVAL;
587 }
588
589 class = r;
590
591 if (*e == ';') {
592 q = e + 1;
593 continue;
594 }
595
596 break;
597 }
598
599 f = startswith_no_case(q, "type=");
600 if (f) {
601 _cleanup_free_ char *t = NULL;
602 const char *e;
603
604 if (type != 0) {
605 log_error("DNS type specified twice.");
606 return -EINVAL;
607 }
608
609 e = strchrnul(f, ';');
610 t = strndup(f, e - f);
611 if (!t)
612 return log_oom();
613
614 r = dns_type_from_string(t);
615 if (r < 0) {
616 log_error("Unknown DNS type %s.", t);
617 return -EINVAL;
618 }
619
620 type = r;
621
622 if (*e == ';') {
623 q = e + 1;
624 continue;
625 }
626
627 break;
628 }
629
630 goto invalid;
631 }
632 } else
633 n = p;
634
c1dafe4f 635 if (class == 0)
4ac2ca1b
ZJS		 636 class = arg_class ?: DNS_CLASS_IN;
637 if (type == 0)
638 type = arg_type ?: DNS_TYPE_A;
c1dafe4f
LP		 639
640 return resolve_record(bus, n, class, type);
641
642invalid:
643 log_error("Invalid DNS URI: %s", name);
644 return -EINVAL;
645}
646
45ec7efb
LP		 647static int resolve_service(sd_bus *bus, const char *name, const char *type, const char *domain) {
648 const char *canonical_name, *canonical_type, *canonical_domain;
4afd3348
LP		 649 _cleanup_(sd_bus_message_unrefp) sd_bus_message *req = NULL, *reply = NULL;
650 _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
45ec7efb
LP		 651 char ifname[IF_NAMESIZE] = "";
652 size_t indent, sz;
653 uint64_t flags;
654 const char *p;
655 unsigned c;
656 usec_t ts;
657 int r;
658
659 assert(bus);
660 assert(domain);
661
662 if (isempty(name))
663 name = NULL;
664 if (isempty(type))
665 type = NULL;
666
667 if (arg_ifindex > 0 && !if_indextoname(arg_ifindex, ifname))
668 return log_error_errno(errno, "Failed to resolve interface name for index %i: %m", arg_ifindex);
669
670 if (name)
671 log_debug("Resolving service \"%s\" of type %s in %s (family %s, interface %s).", name, type, domain, af_to_name(arg_family) ?: "*", isempty(ifname) ? "*" : ifname);
672 else if (type)
673 log_debug("Resolving service type %s of %s (family %s, interface %s).", type, domain, af_to_name(arg_family) ?: "*", isempty(ifname) ? "*" : ifname);
674 else
675 log_debug("Resolving service type %s (family %s, interface %s).", domain, af_to_name(arg_family) ?: "*", isempty(ifname) ? "*" : ifname);
676
677 r = sd_bus_message_new_method_call(
678 bus,
679 &req,
680 "org.freedesktop.resolve1",
681 "/org/freedesktop/resolve1",
682 "org.freedesktop.resolve1.Manager",
683 "ResolveService");
684 if (r < 0)
685 return bus_log_create_error(r);
686
687 r = sd_bus_message_append(req, "isssit", arg_ifindex, name, type, domain, arg_family, arg_flags);
688 if (r < 0)
689 return bus_log_create_error(r);
690
691 ts = now(CLOCK_MONOTONIC);
692
693 r = sd_bus_call(bus, req, DNS_CALL_TIMEOUT_USEC, &error, &reply);
694 if (r < 0)
695 return log_error_errno(r, "Resolve call failed: %s", bus_error_message(&error, r));
696
697 ts = now(CLOCK_MONOTONIC) - ts;
698
699 r = sd_bus_message_enter_container(reply, 'a', "(qqqsa(iiay)s)");
700 if (r < 0)
701 return bus_log_parse_error(r);
702
703 indent =
704 (name ? strlen(name) + 1 : 0) +
705 (type ? strlen(type) + 1 : 0) +
706 strlen(domain) + 2;
707
708 c = 0;
709 while ((r = sd_bus_message_enter_container(reply, 'r', "qqqsa(iiay)s")) > 0) {
710 uint16_t priority, weight, port;
711 const char *hostname, *canonical;
712
713 r = sd_bus_message_read(reply, "qqqs", &priority, &weight, &port, &hostname);
714 if (r < 0)
715 return bus_log_parse_error(r);
716
717 if (name)
718 printf("%*s%s", (int) strlen(name), c == 0 ? name : "", c == 0 ? "/" : " ");
719 if (type)
720 printf("%*s%s", (int) strlen(type), c == 0 ? type : "", c == 0 ? "/" : " ");
721
722 printf("%*s%s %s:%u [priority=%u, weight=%u]\n",
723 (int) strlen(domain), c == 0 ? domain : "",
724 c == 0 ? ":" : " ",
725 hostname, port,
726 priority, weight);
727
728 r = sd_bus_message_enter_container(reply, 'a', "(iiay)");
729 if (r < 0)
730 return bus_log_parse_error(r);
731
732 while ((r = sd_bus_message_enter_container(reply, 'r', "iiay")) > 0) {
733 _cleanup_free_ char *pretty = NULL;
734 int ifindex, family;
735 const void *a;
736
737 assert_cc(sizeof(int) == sizeof(int32_t));
738
739 r = sd_bus_message_read(reply, "ii", &ifindex, &family);
740 if (r < 0)
741 return bus_log_parse_error(r);
742
743 r = sd_bus_message_read_array(reply, 'y', &a, &sz);
744 if (r < 0)
745 return bus_log_parse_error(r);
746
747 r = sd_bus_message_exit_container(reply);
748 if (r < 0)
749 return bus_log_parse_error(r);
750
751 if (!IN_SET(family, AF_INET, AF_INET6)) {
752 log_debug("%s: skipping entry with family %d (%s)", name, family, af_to_name(family) ?: "unknown");
753 continue;
754 }
755
756 if (sz != FAMILY_ADDRESS_SIZE(family)) {
757 log_error("%s: systemd-resolved returned address of invalid size %zu for family %s", name, sz, af_to_name(family) ?: "unknown");
758 return -EINVAL;
759 }
760
761 ifname[0] = 0;
762 if (ifindex > 0 && !if_indextoname(ifindex, ifname))
763 log_warning_errno(errno, "Failed to resolve interface name for index %i: %m", ifindex);
764
765 r = in_addr_to_string(family, a, &pretty);
766 if (r < 0)
767 return log_error_errno(r, "Failed to print address for %s: %m", name);
768
769 printf("%*s%s%s%s\n", (int) indent, "", pretty, isempty(ifname) ? "" : "%s", ifname);
770 }
771 if (r < 0)
772 return bus_log_parse_error(r);
773
774 r = sd_bus_message_exit_container(reply);
775 if (r < 0)
776 return bus_log_parse_error(r);
777
778 r = sd_bus_message_read(reply, "s", &canonical);
779 if (r < 0)
780 return bus_log_parse_error(r);
781
782 if (!streq(hostname, canonical))
783 printf("%*s(%s)\n", (int) indent, "", canonical);
784
785 r = sd_bus_message_exit_container(reply);
786 if (r < 0)
787 return bus_log_parse_error(r);
788
789 c++;
790 }
791 if (r < 0)
792 return bus_log_parse_error(r);
793
794 r = sd_bus_message_exit_container(reply);
795 if (r < 0)
796 return bus_log_parse_error(r);
797
798 r = sd_bus_message_enter_container(reply, 'a', "ay");
799 if (r < 0)
800 return bus_log_parse_error(r);
801
802 c = 0;
803 while ((r = sd_bus_message_read_array(reply, 'y', (const void**) &p, &sz)) > 0) {
804 _cleanup_free_ char *escaped = NULL;
805
806 escaped = cescape_length(p, sz);
807 if (!escaped)
808 return log_oom();
809
810 printf("%*s%s\n", (int) indent, "", escaped);
811 c++;
812 }
813 if (r < 0)
814 return bus_log_parse_error(r);
815
816 r = sd_bus_message_exit_container(reply);
817 if (r < 0)
818 return bus_log_parse_error(r);
819
820 r = sd_bus_message_read(reply, "ssst", &canonical_name, &canonical_type, &canonical_domain, &flags);
821 if (r < 0)
822 return bus_log_parse_error(r);
823
824 if (isempty(canonical_name))
825 canonical_name = NULL;
826 if (isempty(canonical_type))
827 canonical_type = NULL;
828
829 if (!streq_ptr(name, canonical_name) ||
830 !streq_ptr(type, canonical_type) ||
831 !streq_ptr(domain, canonical_domain)) {
832
833 printf("%*s(", (int) indent, "");
834
835 if (canonical_name)
836 printf("%s/", canonical_name);
837 if (canonical_type)
838 printf("%s/", canonical_type);
839
840 printf("%s)\n", canonical_domain);
841 }
842
843 print_source(flags, ts);
844
845 return 0;
846}
847
4ac2ca1b
ZJS		 848static int resolve_openpgp(sd_bus *bus, const char *address) {
849 const char *domain, *full;
850 int r;
851 _cleanup_free_ char *hashed = NULL;
852
853 assert(bus);
854 assert(address);
855
856 domain = strrchr(address, '@');
857 if (!domain) {
858 log_error("Address does not contain '@': \"%s\"", address);
859 return -EINVAL;
860 } else if (domain == address || domain[1] == '\0') {
861 log_error("Address starts or ends with '@': \"%s\"", address);
862 return -EINVAL;
863 }
864 domain++;
865
866 r = string_hashsum(address, domain - 1 - address, GCRY_MD_SHA224, &hashed);
867 if (r < 0)
868 return log_error_errno(r, "Hashing failed: %m");
869
870 full = strjoina(hashed, "._openpgpkey.", domain);
871 log_debug("Looking up \"%s\".", full);
872
873 return resolve_record(bus, full,
874 arg_class ?: DNS_CLASS_IN,
875 arg_type ?: DNS_TYPE_OPENPGPKEY);
876}
877
82d1d240
ZJS		 878static int resolve_tlsa(sd_bus *bus, const char *address) {
879 const char *port;
880 uint16_t port_num = 443;
881 _cleanup_free_ char *full = NULL;
882 int r;
883
884 assert(bus);
885 assert(address);
886
887 port = strrchr(address, ':');
888 if (port) {
889 r = safe_atou16(port + 1, &port_num);
890 if (r < 0 || port_num == 0)
891 return log_error_errno(r, "Invalid port \"%s\".", port + 1);
892
893 address = strndupa(address, port - address);
894 }
895
896 r = asprintf(&full, "_%u.%s.%s",
897 port_num,
898 service_family_to_string(arg_service_family),
899 address);
900 if (r < 0)
901 return log_oom();
902
903 log_debug("Looking up \"%s\".", full);
904
905 return resolve_record(bus, full,
906 arg_class ?: DNS_CLASS_IN,
907 arg_type ?: DNS_TYPE_TLSA);
908}
909
a150ff5e
LP		 910static int show_statistics(sd_bus *bus) {
911 _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
912 _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL;
913 uint64_t n_current_transactions, n_total_transactions,
914 cache_size, n_cache_hit, n_cache_miss,
915 n_dnssec_secure, n_dnssec_insecure, n_dnssec_bogus, n_dnssec_indeterminate;
593f665c 916 int r, dnssec_supported;
a150ff5e
LP		 917
918 assert(bus);
919
593f665c
LP		 920 r = sd_bus_get_property_trivial(bus,
921 "org.freedesktop.resolve1",
922 "/org/freedesktop/resolve1",
923 "org.freedesktop.resolve1.Manager",
924 "DNSSECSupported",
925 &error,
926 'b',
927 &dnssec_supported);
928 if (r < 0)
929 return log_error_errno(r, "Failed to get DNSSEC supported state: %s", bus_error_message(&error, r));
930
931 printf("DNSSEC supported by current servers: %s%s%s\n\n",
932 ansi_highlight(),
933 yes_no(dnssec_supported),
934 ansi_normal());
935
a150ff5e
LP		 936 r = sd_bus_get_property(bus,
937 "org.freedesktop.resolve1",
938 "/org/freedesktop/resolve1",
939 "org.freedesktop.resolve1.Manager",
940 "TransactionStatistics",
941 &error,
942 &reply,
943 "(tt)");
944 if (r < 0)
945 return log_error_errno(r, "Failed to get transaction statistics: %s", bus_error_message(&error, r));
946
947 r = sd_bus_message_read(reply, "(tt)",
948 &n_current_transactions,
949 &n_total_transactions);
950 if (r < 0)
951 return bus_log_parse_error(r);
952
953 printf("%sTransactions%s\n"
954 "Current Transactions: %" PRIu64 "\n"
955 " Total Transactions: %" PRIu64 "\n",
956 ansi_highlight(),
957 ansi_normal(),
958 n_current_transactions,
959 n_total_transactions);
960
961 reply = sd_bus_message_unref(reply);
962
963 r = sd_bus_get_property(bus,
964 "org.freedesktop.resolve1",
965 "/org/freedesktop/resolve1",
966 "org.freedesktop.resolve1.Manager",
967 "CacheStatistics",
968 &error,
969 &reply,
970 "(ttt)");
f7700834
TA		 971 if (r < 0)
972 return log_error_errno(r, "Failed to get cache statistics: %s", bus_error_message(&error, r));
a150ff5e
LP		 973
974 r = sd_bus_message_read(reply, "(ttt)",
975 &cache_size,
976 &n_cache_hit,
977 &n_cache_miss);
978 if (r < 0)
979 return bus_log_parse_error(r);
980
981 printf("\n%sCache%s\n"
982 " Current Cache Size: %" PRIu64 "\n"
983 " Cache Hits: %" PRIu64 "\n"
984 " Cache Misses: %" PRIu64 "\n",
985 ansi_highlight(),
986 ansi_normal(),
987 cache_size,
988 n_cache_hit,
989 n_cache_miss);
990
991 reply = sd_bus_message_unref(reply);
992
993 r = sd_bus_get_property(bus,
994 "org.freedesktop.resolve1",
995 "/org/freedesktop/resolve1",
996 "org.freedesktop.resolve1.Manager",
997 "DNSSECStatistics",
998 &error,
999 &reply,
1000 "(tttt)");
f7700834
TA		 1001 if (r < 0)
1002 return log_error_errno(r, "Failed to get DNSSEC statistics: %s", bus_error_message(&error, r));
a150ff5e
LP		 1003
1004 r = sd_bus_message_read(reply, "(tttt)",
1005 &n_dnssec_secure,
1006 &n_dnssec_insecure,
1007 &n_dnssec_bogus,
1008 &n_dnssec_indeterminate);
1009 if (r < 0)
1010 return bus_log_parse_error(r);
1011
7405bb3e
LP		 1012 printf("\n%sDNSSEC Verdicts%s\n"
1013 " Secure: %" PRIu64 "\n"
1014 " Insecure: %" PRIu64 "\n"
1015 " Bogus: %" PRIu64 "\n"
1016 " Indeterminate: %" PRIu64 "\n",
a150ff5e
LP		 1017 ansi_highlight(),
1018 ansi_normal(),
1019 n_dnssec_secure,
1020 n_dnssec_insecure,
1021 n_dnssec_bogus,
1022 n_dnssec_indeterminate);
1023
1024 return 0;
1025}
1026
1027static int reset_statistics(sd_bus *bus) {
1028 _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
1029 int r;
1030
1031 r = sd_bus_call_method(bus,
1032 "org.freedesktop.resolve1",
1033 "/org/freedesktop/resolve1",
1034 "org.freedesktop.resolve1.Manager",
1035 "ResetStatistics",
1036 &error,
1037 NULL,
1038 NULL);
1039 if (r < 0)
1040 return log_error_errno(r, "Failed to reset statistics: %s", bus_error_message(&error, r));
1041
1042 return 0;
1043}
1044
ba82da3b
ZJS		 1045static void help_protocol_types(void) {
1046 if (arg_legend)
1047 puts("Known protocol types:");
1048 puts("dns\nllmnr\nllmnr-ipv4\nllmnr-ipv6");
1049}
1050
b93312f5
ZJS		 1051static void help_dns_types(void) {
1052 int i;
1053 const char *t;
1054
1055 if (arg_legend)
09b1fe14 1056 puts("Known DNS RR types:");
b93312f5
ZJS		 1057 for (i = 0; i < _DNS_TYPE_MAX; i++) {
1058 t = dns_type_to_string(i);
1059 if (t)
1060 puts(t);
1061 }
1062}
1063
1064static void help_dns_classes(void) {
1065 int i;
1066 const char *t;
1067
1068 if (arg_legend)
09b1fe14 1069 puts("Known DNS RR classes:");
b93312f5
ZJS		 1070 for (i = 0; i < _DNS_CLASS_MAX; i++) {
1071 t = dns_class_to_string(i);
1072 if (t)
1073 puts(t);
1074 }
1075}
1076
bdef7319 1077static void help(void) {
1ace2438
ZJS		 1078 printf("%1$s [OPTIONS...] HOSTNAME|ADDRESS...\n"
1079 "%1$s [OPTIONS...] --service [[NAME] TYPE] DOMAIN\n"
1080 "%1$s [OPTIONS...] --openpgp EMAIL@DOMAIN...\n"
1081 "%1$s [OPTIONS...] --statistics\n"
1082 "%1$s [OPTIONS...] --reset-statistics\n"
1083 "\n"
300a716d 1084 "Resolve domain names, IPv4 and IPv6 addresses, DNS resource records, and services.\n\n"
1ace2438
ZJS		 1085 " -h --help Show this help\n"
1086 " --version Show package version\n"
1087 " -4 Resolve IPv4 addresses\n"
1088 " -6 Resolve IPv6 addresses\n"
1089 " -i --interface=INTERFACE Look on interface\n"
1090 " -p --protocol=PROTO|help Look via protocol\n"
1091 " -t --type=TYPE|help Query RR with DNS type\n"
1092 " -c --class=CLASS|help Query RR with DNS class\n"
1093 " --service Resolve service (SRV)\n"
1094 " --service-address=BOOL Resolve address for services (default: yes)\n"
1095 " --service-txt=BOOL Resolve TXT records for services (default: yes)\n"
1096 " --openpgp Query OpenPGP public key\n"
82d1d240 1097 " --tlsa Query TLS public key\n"
1ace2438
ZJS		 1098 " --cname=BOOL Follow CNAME redirects (default: yes)\n"
1099 " --search=BOOL Use search domains for single-label names\n"
1100 " (default: yes)\n"
dab48ea6 1101 " --raw[=payload|packet] Dump the answer as binary data\n"
1ace2438
ZJS		 1102 " --legend=BOOL Print headers and additional info (default: yes)\n"
1103 " --statistics Show resolver statistics\n"
1104 " --reset-statistics Reset resolver statistics\n"
1105 , program_invocation_short_name);
bdef7319
ZJS		 1106}
1107
1108static int parse_argv(int argc, char *argv[]) {
1109 enum {
1110 ARG_VERSION = 0x100,
dad29dff 1111 ARG_LEGEND,
45ec7efb
LP		 1112 ARG_SERVICE,
1113 ARG_CNAME,
1114 ARG_SERVICE_ADDRESS,
1115 ARG_SERVICE_TXT,
4ac2ca1b 1116 ARG_OPENPGP,
82d1d240 1117 ARG_TLSA,
2e74028a 1118 ARG_RAW,
801ad6a6 1119 ARG_SEARCH,
a150ff5e
LP		 1120 ARG_STATISTICS,
1121 ARG_RESET_STATISTICS,
bdef7319
ZJS		 1122 };
1123
1124 static const struct option options[] = {
a150ff5e
LP		 1125 { "help", no_argument, NULL, 'h' },
1126 { "version", no_argument, NULL, ARG_VERSION },
1127 { "type", required_argument, NULL, 't' },
1128 { "class", required_argument, NULL, 'c' },
1129 { "legend", required_argument, NULL, ARG_LEGEND },
5b911843 1130 { "interface", required_argument, NULL, 'i' },
a150ff5e
LP		 1131 { "protocol", required_argument, NULL, 'p' },
1132 { "cname", required_argument, NULL, ARG_CNAME },
1133 { "service", no_argument, NULL, ARG_SERVICE },
1134 { "service-address", required_argument, NULL, ARG_SERVICE_ADDRESS },
1135 { "service-txt", required_argument, NULL, ARG_SERVICE_TXT },
4ac2ca1b 1136 { "openpgp", no_argument, NULL, ARG_OPENPGP },
82d1d240 1137 { "tlsa", optional_argument, NULL, ARG_TLSA },
dab48ea6 1138 { "raw", optional_argument, NULL, ARG_RAW },
a150ff5e
LP		 1139 { "search", required_argument, NULL, ARG_SEARCH },
1140 { "statistics", no_argument, NULL, ARG_STATISTICS, },
1141 { "reset-statistics", no_argument, NULL, ARG_RESET_STATISTICS },
bdef7319
ZJS		 1142 {}
1143 };
1144
2d4c5cbc 1145 int c, r;
bdef7319
ZJS		 1146
1147 assert(argc >= 0);
1148 assert(argv);
1149
51323288 1150 while ((c = getopt_long(argc, argv, "h46i:t:c:p:", options, NULL)) >= 0)
bdef7319
ZJS		 1151 switch(c) {
1152
1153 case 'h':
1154 help();
1155 return 0; /* done */;
1156
1157 case ARG_VERSION:
3f6fd1ba 1158 return version();
bdef7319
ZJS		 1159
1160 case '4':
1161 arg_family = AF_INET;
1162 break;
1163
1164 case '6':
1165 arg_family = AF_INET6;
1166 break;
1167
3fa4999b
LP		 1168 case 'i': {
1169 int ifi;
1170
6ad623a3 1171 if (parse_ifindex(optarg, &ifi) >= 0)
3fa4999b
LP		 1172 arg_ifindex = ifi;
1173 else {
1174 ifi = if_nametoindex(optarg);
1175 if (ifi <= 0)
1176 return log_error_errno(errno, "Unknown interface %s: %m", optarg);
1177
1178 arg_ifindex = ifi;
1179 }
1180
2d4c5cbc 1181 break;
3fa4999b 1182 }
2d4c5cbc
LP		 1183
1184 case 't':
b93312f5
ZJS		 1185 if (streq(optarg, "help")) {
1186 help_dns_types();
1187 return 0;
1188 }
1189
4b548ef3
LP		 1190 r = dns_type_from_string(optarg);
1191 if (r < 0) {
2d4c5cbc 1192 log_error("Failed to parse RR record type %s", optarg);
4b548ef3 1193 return r;
2d4c5cbc 1194 }
4b548ef3
LP		 1195 arg_type = (uint16_t) r;
1196 assert((int) arg_type == r);
b93312f5 1197
a150ff5e 1198 arg_mode = MODE_RESOLVE_RECORD;
2d4c5cbc
LP		 1199 break;
1200
1201 case 'c':
b93312f5
ZJS		 1202 if (streq(optarg, "help")) {
1203 help_dns_classes();
1204 return 0;
1205 }
1206
4b548ef3 1207 r = dns_class_from_string(optarg);
2d4c5cbc
LP		 1208 if (r < 0) {
1209 log_error("Failed to parse RR record class %s", optarg);
1210 return r;
bdef7319 1211 }
4b548ef3
LP		 1212 arg_class = (uint16_t) r;
1213 assert((int) arg_class == r);
b93312f5
ZJS		 1214
1215 break;
1216
dad29dff 1217 case ARG_LEGEND:
45ec7efb
LP		 1218 r = parse_boolean(optarg);
1219 if (r < 0)
1220 return log_error_errno(r, "Failed to parse --legend= argument");
1221
1222 arg_legend = r;
bdef7319
ZJS		 1223 break;
1224
51323288 1225 case 'p':
ba82da3b
ZJS		 1226 if (streq(optarg, "help")) {
1227 help_protocol_types();
1228 return 0;
1229 } else if (streq(optarg, "dns"))
51323288
LP		 1230 arg_flags |= SD_RESOLVED_DNS;
1231 else if (streq(optarg, "llmnr"))
1232 arg_flags |= SD_RESOLVED_LLMNR;
1233 else if (streq(optarg, "llmnr-ipv4"))
1234 arg_flags |= SD_RESOLVED_LLMNR_IPV4;
1235 else if (streq(optarg, "llmnr-ipv6"))
1236 arg_flags |= SD_RESOLVED_LLMNR_IPV6;
1237 else {
1238 log_error("Unknown protocol specifier: %s", optarg);
1239 return -EINVAL;
1240 }
1241
1242 break;
1243
45ec7efb 1244 case ARG_SERVICE:
a150ff5e 1245 arg_mode = MODE_RESOLVE_SERVICE;
45ec7efb
LP		 1246 break;
1247
4ac2ca1b
ZJS		 1248 case ARG_OPENPGP:
1249 arg_mode = MODE_RESOLVE_OPENPGP;
1250 break;
1251
82d1d240
ZJS		 1252 case ARG_TLSA:
1253 arg_mode = MODE_RESOLVE_TLSA;
1254 arg_service_family = service_family_from_string(optarg);
1255 if (arg_service_family < 0) {
1256 log_error("Unknown service family \"%s\".", optarg);
1257 return -EINVAL;
1258 }
1259 break;
1260
2e74028a
ZJS		 1261 case ARG_RAW:
1262 if (on_tty()) {
1263 log_error("Refusing to write binary data to tty.");
1264 return -ENOTTY;
1265 }
1266
dab48ea6
ZJS		 1267 if (optarg == NULL || streq(optarg, "payload"))
1268 arg_raw = RAW_PAYLOAD;
1269 else if (streq(optarg, "packet"))
1270 arg_raw = RAW_PACKET;
1271 else {
1272 log_error("Unknown --raw specifier \"%s\".", optarg);
1273 return -EINVAL;
1274 }
1275
2e74028a
ZJS		 1276 arg_legend = false;
1277 break;
1278
45ec7efb
LP		 1279 case ARG_CNAME:
1280 r = parse_boolean(optarg);
1281 if (r < 0)
1282 return log_error_errno(r, "Failed to parse --cname= argument.");
1283 if (r == 0)
1284 arg_flags |= SD_RESOLVED_NO_CNAME;
1285 else
1286 arg_flags &= ~SD_RESOLVED_NO_CNAME;
1287 break;
1288
1289 case ARG_SERVICE_ADDRESS:
1290 r = parse_boolean(optarg);
1291 if (r < 0)
1292 return log_error_errno(r, "Failed to parse --service-address= argument.");
1293 if (r == 0)
1294 arg_flags |= SD_RESOLVED_NO_ADDRESS;
1295 else
1296 arg_flags &= ~SD_RESOLVED_NO_ADDRESS;
1297 break;
1298
1299 case ARG_SERVICE_TXT:
1300 r = parse_boolean(optarg);
1301 if (r < 0)
1302 return log_error_errno(r, "Failed to parse --service-txt= argument.");
1303 if (r == 0)
1304 arg_flags |= SD_RESOLVED_NO_TXT;
1305 else
1306 arg_flags &= ~SD_RESOLVED_NO_TXT;
1307 break;
1308
801ad6a6
LP		 1309 case ARG_SEARCH:
1310 r = parse_boolean(optarg);
1311 if (r < 0)
1312 return log_error_errno(r, "Failed to parse --search argument.");
1313 if (r == 0)
1314 arg_flags |= SD_RESOLVED_NO_SEARCH;
1315 else
1316 arg_flags &= ~SD_RESOLVED_NO_SEARCH;
1317 break;
1318
a150ff5e
LP		 1319 case ARG_STATISTICS:
1320 arg_mode = MODE_STATISTICS;
1321 break;
1322
1323 case ARG_RESET_STATISTICS:
1324 arg_mode = MODE_RESET_STATISTICS;
1325 break;
1326
bdef7319
ZJS		 1327 case '?':
1328 return -EINVAL;
1329
1330 default:
1331 assert_not_reached("Unhandled option");
1332 }
1333
2d4c5cbc 1334 if (arg_type == 0 && arg_class != 0) {
45ec7efb
LP		 1335 log_error("--class= may only be used in conjunction with --type=.");
1336 return -EINVAL;
1337 }
1338
82d1d240 1339 if (arg_type != 0 && arg_mode == MODE_RESOLVE_SERVICE) {
45ec7efb 1340 log_error("--service and --type= may not be combined.");
2d4c5cbc
LP		 1341 return -EINVAL;
1342 }
1343
1344 if (arg_type != 0 && arg_class == 0)
1345 arg_class = DNS_CLASS_IN;
1346
c1dafe4f
LP		 1347 if (arg_class != 0 && arg_type == 0)
1348 arg_type = DNS_TYPE_A;
1349
bdef7319
ZJS		 1350 return 1 /* work to do */;
1351}
1352
bdef7319 1353int main(int argc, char **argv) {
4afd3348 1354 _cleanup_(sd_bus_flush_close_unrefp) sd_bus *bus = NULL;
bdef7319
ZJS		 1355 int r;
1356
1357 log_parse_environment();
1358 log_open();
1359
1360 r = parse_argv(argc, argv);
1361 if (r <= 0)
79266746
LP		 1362 goto finish;
1363
bdef7319
ZJS		 1364 r = sd_bus_open_system(&bus);
1365 if (r < 0) {
da927ba9 1366 log_error_errno(r, "sd_bus_open_system: %m");
79266746 1367 goto finish;
bdef7319
ZJS		 1368 }
1369
a150ff5e 1370 switch (arg_mode) {
45ec7efb 1371
a150ff5e
LP		 1372 case MODE_RESOLVE_HOST:
1373 if (optind >= argc) {
300a716d 1374 log_error("No arguments passed.");
a150ff5e
LP		 1375 r = -EINVAL;
1376 goto finish;
1377 }
1378
1379 while (argv[optind]) {
1380 int family, ifindex, k;
1381 union in_addr_union a;
1382
c1dafe4f
LP		 1383 if (startswith(argv[optind], "dns:"))
1384 k = resolve_rfc4501(bus, argv[optind]);
1385 else {
1386 k = parse_address(argv[optind], &family, &a, &ifindex);
1387 if (k >= 0)
1388 k = resolve_address(bus, family, &a, ifindex);
1389 else
1390 k = resolve_host(bus, argv[optind]);
1391 }
a150ff5e
LP		 1392
1393 if (r == 0)
1394 r = k;
1395
1396 optind++;
1397 }
1398 break;
1399
1400 case MODE_RESOLVE_RECORD:
1401 if (optind >= argc) {
300a716d 1402 log_error("No arguments passed.");
a150ff5e
LP		 1403 r = -EINVAL;
1404 goto finish;
1405 }
1406
1407 while (argv[optind]) {
1408 int k;
1409
c1dafe4f 1410 k = resolve_record(bus, argv[optind], arg_class, arg_type);
a150ff5e
LP		 1411 if (r == 0)
1412 r = k;
1413
1414 optind++;
1415 }
1416 break;
1417
1418 case MODE_RESOLVE_SERVICE:
45ec7efb
LP		 1419 if (argc < optind + 1) {
1420 log_error("Domain specification required.");
1421 r = -EINVAL;
1422 goto finish;
1423
1424 } else if (argc == optind + 1)
1425 r = resolve_service(bus, NULL, NULL, argv[optind]);
1426 else if (argc == optind + 2)
1427 r = resolve_service(bus, NULL, argv[optind], argv[optind+1]);
1428 else if (argc == optind + 3)
1429 r = resolve_service(bus, argv[optind], argv[optind+1], argv[optind+2]);
1430 else {
300a716d 1431 log_error("Too many arguments.");
45ec7efb
LP		 1432 r = -EINVAL;
1433 goto finish;
1434 }
1435
a150ff5e 1436 break;
79266746 1437
4ac2ca1b
ZJS		 1438 case MODE_RESOLVE_OPENPGP:
1439 if (argc < optind + 1) {
1440 log_error("E-mail address required.");
1441 r = -EINVAL;
1442 goto finish;
1443
1444 }
1445
1446 r = 0;
1447 while (optind < argc) {
1448 int k;
1449
1450 k = resolve_openpgp(bus, argv[optind++]);
1451 if (k < 0)
1452 r = k;
1453 }
1454 break;
1455
82d1d240
ZJS		 1456 case MODE_RESOLVE_TLSA:
1457 if (argc < optind + 1) {
1458 log_error("Domain name required.");
1459 r = -EINVAL;
1460 goto finish;
1461
1462 }
1463
1464 r = 0;
1465 while (optind < argc) {
1466 int k;
1467
1468 k = resolve_tlsa(bus, argv[optind++]);
1469 if (k < 0)
1470 r = k;
1471 }
1472 break;
1473
a150ff5e
LP		 1474 case MODE_STATISTICS:
1475 if (argc > optind) {
1476 log_error("Too many arguments.");
1477 r = -EINVAL;
1478 goto finish;
2d4c5cbc 1479 }
bdef7319 1480
a150ff5e
LP		 1481 r = show_statistics(bus);
1482 break;
1483
1484 case MODE_RESET_STATISTICS:
1485 if (argc > optind) {
1486 log_error("Too many arguments.");
1487 r = -EINVAL;
1488 goto finish;
1489 }
79266746 1490
a150ff5e
LP		 1491 r = reset_statistics(bus);
1492 break;
bdef7319
ZJS		 1493 }
1494
79266746 1495finish:
bdef7319
ZJS		 1496 return r == 0 ? EXIT_SUCCESS : EXIT_FAILURE;
1497}
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