1 /*- 2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD 3 * 4 * Copyright (c) 2013 The FreeBSD Foundation 5 * All rights reserved. 6 * 7 * This software was developed by Pawel Jakub Dawidek under sponsorship from 8 * the FreeBSD Foundation. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE AUTHORS AND CONTRIBUTORS ``AS IS'' AND 20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 22 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE LIABLE 23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 29 * SUCH DAMAGE. 30 */ 31 32 #include <sys/cdefs.h> 33 __FBSDID("$FreeBSD$"); 34 35 #include <sys/capsicum.h> 36 #include <sys/nv.h> 37 38 #include <arpa/inet.h> 39 #include <netinet/in.h> 40 41 #include <assert.h> 42 #include <err.h> 43 #include <errno.h> 44 #include <netdb.h> 45 #include <stdio.h> 46 #include <stdlib.h> 47 #include <string.h> 48 #include <unistd.h> 49 50 #include <libcasper.h> 51 52 #include <casper/cap_dns.h> 53 54 static int ntest = 1; 55 56 #define CHECK(expr) do { \ 57 if ((expr)) \ 58 printf("ok %d # %s:%u\n", ntest, __FILE__, __LINE__); \ 59 else \ 60 printf("not ok %d # %s:%u\n", ntest, __FILE__, __LINE__); \ 61 fflush(stdout); \ 62 ntest++; \ 63 } while (0) 64 #define CHECKX(expr) do { \ 65 if ((expr)) { \ 66 printf("ok %d # %s:%u\n", ntest, __FILE__, __LINE__); \ 67 } else { \ 68 printf("not ok %d # %s:%u\n", ntest, __FILE__, __LINE__); \ 69 exit(1); \ 70 } \ 71 fflush(stdout); \ 72 ntest++; \ 73 } while (0) 74 75 #define GETHOSTBYNAME 0x01 76 #define GETHOSTBYNAME2_AF_INET 0x02 77 #define GETHOSTBYNAME2_AF_INET6 0x04 78 #define GETHOSTBYADDR_AF_INET 0x08 79 #define GETHOSTBYADDR_AF_INET6 0x10 80 #define GETADDRINFO_AF_UNSPEC 0x20 81 #define GETADDRINFO_AF_INET 0x40 82 #define GETADDRINFO_AF_INET6 0x80 83 84 static bool 85 addrinfo_compare(struct addrinfo *ai0, struct addrinfo *ai1) 86 { 87 struct addrinfo *at0, *at1; 88 89 if (ai0 == NULL && ai1 == NULL) 90 return (true); 91 if (ai0 == NULL || ai1 == NULL) 92 return (false); 93 94 at0 = ai0; 95 at1 = ai1; 96 while (true) { 97 if ((at0->ai_flags == at1->ai_flags) && 98 (at0->ai_family == at1->ai_family) && 99 (at0->ai_socktype == at1->ai_socktype) && 100 (at0->ai_protocol == at1->ai_protocol) && 101 (at0->ai_addrlen == at1->ai_addrlen) && 102 (memcmp(at0->ai_addr, at1->ai_addr, 103 at0->ai_addrlen) == 0)) { 104 if (at0->ai_canonname != NULL && 105 at1->ai_canonname != NULL) { 106 if (strcmp(at0->ai_canonname, 107 at1->ai_canonname) != 0) { 108 return (false); 109 } 110 } 111 112 if (at0->ai_canonname == NULL && 113 at1->ai_canonname != NULL) { 114 return (false); 115 } 116 if (at0->ai_canonname != NULL && 117 at1->ai_canonname == NULL) { 118 return (false); 119 } 120 121 if (at0->ai_next == NULL && at1->ai_next == NULL) 122 return (true); 123 if (at0->ai_next == NULL || at1->ai_next == NULL) 124 return (false); 125 126 at0 = at0->ai_next; 127 at1 = at1->ai_next; 128 } else { 129 return (false); 130 } 131 } 132 133 /* NOTREACHED */ 134 fprintf(stderr, "Dead code reached in addrinfo_compare()\n"); 135 exit(1); 136 } 137 138 static bool 139 hostent_aliases_compare(char **aliases0, char **aliases1) 140 { 141 int i0, i1; 142 143 if (aliases0 == NULL && aliases1 == NULL) 144 return (true); 145 if (aliases0 == NULL || aliases1 == NULL) 146 return (false); 147 148 for (i0 = 0; aliases0[i0] != NULL; i0++) { 149 for (i1 = 0; aliases1[i1] != NULL; i1++) { 150 if (strcmp(aliases0[i0], aliases1[i1]) == 0) 151 break; 152 } 153 if (aliases1[i1] == NULL) 154 return (false); 155 } 156 157 return (true); 158 } 159 160 static bool 161 hostent_addr_list_compare(char **addr_list0, char **addr_list1, int length) 162 { 163 int i0, i1; 164 165 if (addr_list0 == NULL && addr_list1 == NULL) 166 return (true); 167 if (addr_list0 == NULL || addr_list1 == NULL) 168 return (false); 169 170 for (i0 = 0; addr_list0[i0] != NULL; i0++) { 171 for (i1 = 0; addr_list1[i1] != NULL; i1++) { 172 if (memcmp(addr_list0[i0], addr_list1[i1], length) == 0) 173 break; 174 } 175 if (addr_list1[i1] == NULL) 176 return (false); 177 } 178 179 return (true); 180 } 181 182 static bool 183 hostent_compare(const struct hostent *hp0, const struct hostent *hp1) 184 { 185 186 if (hp0 == NULL && hp1 != NULL) 187 return (true); 188 189 if (hp0 == NULL || hp1 == NULL) 190 return (false); 191 192 if (hp0->h_name != NULL || hp1->h_name != NULL) { 193 if (hp0->h_name == NULL || hp1->h_name == NULL) 194 return (false); 195 if (strcmp(hp0->h_name, hp1->h_name) != 0) 196 return (false); 197 } 198 199 if (!hostent_aliases_compare(hp0->h_aliases, hp1->h_aliases)) 200 return (false); 201 if (!hostent_aliases_compare(hp1->h_aliases, hp0->h_aliases)) 202 return (false); 203 204 if (hp0->h_addrtype != hp1->h_addrtype) 205 return (false); 206 207 if (hp0->h_length != hp1->h_length) 208 return (false); 209 210 if (!hostent_addr_list_compare(hp0->h_addr_list, hp1->h_addr_list, 211 hp0->h_length)) { 212 return (false); 213 } 214 if (!hostent_addr_list_compare(hp1->h_addr_list, hp0->h_addr_list, 215 hp0->h_length)) { 216 return (false); 217 } 218 219 return (true); 220 } 221 222 static unsigned int 223 runtest(cap_channel_t *capdns) 224 { 225 unsigned int result; 226 struct addrinfo *ais, *aic, hints, *hintsp; 227 struct hostent *hps, *hpc; 228 struct in_addr ip4; 229 struct in6_addr ip6; 230 231 result = 0; 232 233 hps = gethostbyname("example.com"); 234 if (hps == NULL) 235 fprintf(stderr, "Unable to resolve %s IPv4.\n", "example.com"); 236 hpc = cap_gethostbyname(capdns, "example.com"); 237 if (hostent_compare(hps, hpc)) 238 result |= GETHOSTBYNAME; 239 240 hps = gethostbyname2("example.com", AF_INET); 241 if (hps == NULL) 242 fprintf(stderr, "Unable to resolve %s IPv4.\n", "example.com"); 243 hpc = cap_gethostbyname2(capdns, "example.com", AF_INET); 244 if (hostent_compare(hps, hpc)) 245 result |= GETHOSTBYNAME2_AF_INET; 246 247 hps = gethostbyname2("example.com", AF_INET6); 248 if (hps == NULL) 249 fprintf(stderr, "Unable to resolve %s IPv6.\n", "example.com"); 250 hpc = cap_gethostbyname2(capdns, "example.com", AF_INET6); 251 if (hostent_compare(hps, hpc)) 252 result |= GETHOSTBYNAME2_AF_INET6; 253 254 hints.ai_flags = 0; 255 hints.ai_family = AF_UNSPEC; 256 hints.ai_socktype = 0; 257 hints.ai_protocol = 0; 258 hints.ai_addrlen = 0; 259 hints.ai_addr = NULL; 260 hints.ai_canonname = NULL; 261 hints.ai_next = NULL; 262 263 hintsp = &hints; 264 265 if (getaddrinfo("freebsd.org", "25", hintsp, &ais) != 0) { 266 fprintf(stderr, 267 "Unable to issue [system] getaddrinfo() for AF_UNSPEC: %s\n", 268 gai_strerror(errno)); 269 } 270 if (cap_getaddrinfo(capdns, "freebsd.org", "25", hintsp, &aic) == 0) { 271 if (addrinfo_compare(ais, aic)) 272 result |= GETADDRINFO_AF_UNSPEC; 273 freeaddrinfo(ais); 274 freeaddrinfo(aic); 275 } 276 277 hints.ai_family = AF_INET; 278 if (getaddrinfo("freebsd.org", "25", hintsp, &ais) != 0) { 279 fprintf(stderr, 280 "Unable to issue [system] getaddrinfo() for AF_UNSPEC: %s\n", 281 gai_strerror(errno)); 282 } 283 if (cap_getaddrinfo(capdns, "freebsd.org", "25", hintsp, &aic) == 0) { 284 if (addrinfo_compare(ais, aic)) 285 result |= GETADDRINFO_AF_INET; 286 freeaddrinfo(ais); 287 freeaddrinfo(aic); 288 } 289 290 hints.ai_family = AF_INET6; 291 if (getaddrinfo("freebsd.org", "25", hintsp, &ais) != 0) { 292 fprintf(stderr, 293 "Unable to issue [system] getaddrinfo() for AF_UNSPEC: %s\n", 294 gai_strerror(errno)); 295 } 296 if (cap_getaddrinfo(capdns, "freebsd.org", "25", hintsp, &aic) == 0) { 297 if (addrinfo_compare(ais, aic)) 298 result |= GETADDRINFO_AF_INET6; 299 freeaddrinfo(ais); 300 freeaddrinfo(aic); 301 } 302 303 /* XXX: hardcoded addresses for "google-public-dns-a.google.com". */ 304 #define GOOGLE_DNS_IPV4 "8.8.8.8" 305 #define GOOGLE_DNS_IPV6 "2001:4860:4860::8888" 306 307 inet_pton(AF_INET, GOOGLE_DNS_IPV4, &ip4); 308 hps = gethostbyaddr(&ip4, sizeof(ip4), AF_INET); 309 if (hps == NULL) 310 fprintf(stderr, "Unable to resolve %s.\n", GOOGLE_DNS_IPV4); 311 hpc = cap_gethostbyaddr(capdns, &ip4, sizeof(ip4), AF_INET); 312 if (hostent_compare(hps, hpc)) 313 result |= GETHOSTBYADDR_AF_INET; 314 315 inet_pton(AF_INET6, GOOGLE_DNS_IPV6, &ip6); 316 hps = gethostbyaddr(&ip6, sizeof(ip6), AF_INET6); 317 if (hps == NULL) { 318 fprintf(stderr, "Unable to resolve %s.\n", GOOGLE_DNS_IPV6); 319 } 320 hpc = cap_gethostbyaddr(capdns, &ip6, sizeof(ip6), AF_INET6); 321 if (hostent_compare(hps, hpc)) 322 result |= GETHOSTBYADDR_AF_INET6; 323 return (result); 324 } 325 326 int 327 main(void) 328 { 329 cap_channel_t *capcas, *capdns, *origcapdns; 330 const char *types[2]; 331 int families[2]; 332 333 printf("1..91\n"); 334 fflush(stdout); 335 336 capcas = cap_init(); 337 CHECKX(capcas != NULL); 338 339 origcapdns = capdns = cap_service_open(capcas, "system.dns"); 340 CHECKX(capdns != NULL); 341 342 cap_close(capcas); 343 344 /* No limits set. */ 345 346 CHECK(runtest(capdns) == 347 (GETHOSTBYNAME | GETHOSTBYNAME2_AF_INET | GETHOSTBYNAME2_AF_INET6 | 348 GETHOSTBYADDR_AF_INET | GETHOSTBYADDR_AF_INET6 | 349 GETADDRINFO_AF_UNSPEC | GETADDRINFO_AF_INET | GETADDRINFO_AF_INET6)); 350 351 /* 352 * Allow: 353 * type: NAME, ADDR 354 * family: AF_INET, AF_INET6 355 */ 356 357 capdns = cap_clone(origcapdns); 358 CHECK(capdns != NULL); 359 360 types[0] = "NAME"; 361 types[1] = "ADDR"; 362 CHECK(cap_dns_type_limit(capdns, types, 2) == 0); 363 families[0] = AF_INET; 364 families[1] = AF_INET6; 365 CHECK(cap_dns_family_limit(capdns, families, 2) == 0); 366 367 CHECK(runtest(capdns) == 368 (GETHOSTBYNAME | GETHOSTBYNAME2_AF_INET | GETHOSTBYNAME2_AF_INET6 | 369 GETHOSTBYADDR_AF_INET | GETHOSTBYADDR_AF_INET6 | 370 GETADDRINFO_AF_INET | GETADDRINFO_AF_INET6)); 371 372 cap_close(capdns); 373 374 /* 375 * Allow: 376 * type: NAME 377 * family: AF_INET, AF_INET6 378 */ 379 380 capdns = cap_clone(origcapdns); 381 CHECK(capdns != NULL); 382 383 types[0] = "NAME"; 384 CHECK(cap_dns_type_limit(capdns, types, 1) == 0); 385 types[1] = "ADDR"; 386 CHECK(cap_dns_type_limit(capdns, types, 2) == -1 && 387 errno == ENOTCAPABLE); 388 types[0] = "ADDR"; 389 CHECK(cap_dns_type_limit(capdns, types, 1) == -1 && 390 errno == ENOTCAPABLE); 391 families[0] = AF_INET; 392 families[1] = AF_INET6; 393 CHECK(cap_dns_family_limit(capdns, families, 2) == 0); 394 395 CHECK(runtest(capdns) == 396 (GETHOSTBYNAME | GETHOSTBYNAME2_AF_INET | GETHOSTBYNAME2_AF_INET6)); 397 398 cap_close(capdns); 399 400 /* 401 * Allow: 402 * type: ADDR 403 * family: AF_INET, AF_INET6 404 */ 405 406 capdns = cap_clone(origcapdns); 407 CHECK(capdns != NULL); 408 409 types[0] = "ADDR"; 410 CHECK(cap_dns_type_limit(capdns, types, 1) == 0); 411 types[1] = "NAME"; 412 CHECK(cap_dns_type_limit(capdns, types, 2) == -1 && 413 errno == ENOTCAPABLE); 414 types[0] = "NAME"; 415 CHECK(cap_dns_type_limit(capdns, types, 1) == -1 && 416 errno == ENOTCAPABLE); 417 families[0] = AF_INET; 418 families[1] = AF_INET6; 419 CHECK(cap_dns_family_limit(capdns, families, 2) == 0); 420 421 CHECK(runtest(capdns) == 422 (GETHOSTBYADDR_AF_INET | GETHOSTBYADDR_AF_INET6 | 423 GETADDRINFO_AF_INET | GETADDRINFO_AF_INET6)); 424 425 cap_close(capdns); 426 427 /* 428 * Allow: 429 * type: NAME, ADDR 430 * family: AF_INET 431 */ 432 433 capdns = cap_clone(origcapdns); 434 CHECK(capdns != NULL); 435 436 types[0] = "NAME"; 437 types[1] = "ADDR"; 438 CHECK(cap_dns_type_limit(capdns, types, 2) == 0); 439 families[0] = AF_INET; 440 CHECK(cap_dns_family_limit(capdns, families, 1) == 0); 441 families[1] = AF_INET6; 442 CHECK(cap_dns_family_limit(capdns, families, 2) == -1 && 443 errno == ENOTCAPABLE); 444 families[0] = AF_INET6; 445 CHECK(cap_dns_family_limit(capdns, families, 1) == -1 && 446 errno == ENOTCAPABLE); 447 448 CHECK(runtest(capdns) == 449 (GETHOSTBYNAME | GETHOSTBYNAME2_AF_INET | GETHOSTBYADDR_AF_INET | 450 GETADDRINFO_AF_INET)); 451 452 cap_close(capdns); 453 454 /* 455 * Allow: 456 * type: NAME, ADDR 457 * family: AF_INET6 458 */ 459 460 capdns = cap_clone(origcapdns); 461 CHECK(capdns != NULL); 462 463 types[0] = "NAME"; 464 types[1] = "ADDR"; 465 CHECK(cap_dns_type_limit(capdns, types, 2) == 0); 466 families[0] = AF_INET6; 467 CHECK(cap_dns_family_limit(capdns, families, 1) == 0); 468 families[1] = AF_INET; 469 CHECK(cap_dns_family_limit(capdns, families, 2) == -1 && 470 errno == ENOTCAPABLE); 471 families[0] = AF_INET; 472 CHECK(cap_dns_family_limit(capdns, families, 1) == -1 && 473 errno == ENOTCAPABLE); 474 475 CHECK(runtest(capdns) == 476 (GETHOSTBYNAME2_AF_INET6 | GETHOSTBYADDR_AF_INET6 | 477 GETADDRINFO_AF_INET6)); 478 479 cap_close(capdns); 480 481 /* Below we also test further limiting capability. */ 482 483 /* 484 * Allow: 485 * type: NAME 486 * family: AF_INET 487 */ 488 489 capdns = cap_clone(origcapdns); 490 CHECK(capdns != NULL); 491 492 types[0] = "NAME"; 493 types[1] = "ADDR"; 494 CHECK(cap_dns_type_limit(capdns, types, 2) == 0); 495 families[0] = AF_INET; 496 families[1] = AF_INET6; 497 CHECK(cap_dns_family_limit(capdns, families, 2) == 0); 498 types[0] = "NAME"; 499 CHECK(cap_dns_type_limit(capdns, types, 1) == 0); 500 types[1] = "ADDR"; 501 CHECK(cap_dns_type_limit(capdns, types, 2) == -1 && 502 errno == ENOTCAPABLE); 503 types[0] = "ADDR"; 504 CHECK(cap_dns_type_limit(capdns, types, 1) == -1 && 505 errno == ENOTCAPABLE); 506 families[0] = AF_INET; 507 CHECK(cap_dns_family_limit(capdns, families, 1) == 0); 508 families[1] = AF_INET6; 509 CHECK(cap_dns_family_limit(capdns, families, 2) == -1 && 510 errno == ENOTCAPABLE); 511 families[0] = AF_INET6; 512 CHECK(cap_dns_family_limit(capdns, families, 1) == -1 && 513 errno == ENOTCAPABLE); 514 515 CHECK(runtest(capdns) == (GETHOSTBYNAME | GETHOSTBYNAME2_AF_INET)); 516 517 cap_close(capdns); 518 519 /* 520 * Allow: 521 * type: NAME 522 * family: AF_INET6 523 */ 524 525 capdns = cap_clone(origcapdns); 526 CHECK(capdns != NULL); 527 528 types[0] = "NAME"; 529 types[1] = "ADDR"; 530 CHECK(cap_dns_type_limit(capdns, types, 2) == 0); 531 families[0] = AF_INET; 532 families[1] = AF_INET6; 533 CHECK(cap_dns_family_limit(capdns, families, 2) == 0); 534 types[0] = "NAME"; 535 CHECK(cap_dns_type_limit(capdns, types, 1) == 0); 536 types[1] = "ADDR"; 537 CHECK(cap_dns_type_limit(capdns, types, 2) == -1 && 538 errno == ENOTCAPABLE); 539 types[0] = "ADDR"; 540 CHECK(cap_dns_type_limit(capdns, types, 1) == -1 && 541 errno == ENOTCAPABLE); 542 families[0] = AF_INET6; 543 CHECK(cap_dns_family_limit(capdns, families, 1) == 0); 544 families[1] = AF_INET; 545 CHECK(cap_dns_family_limit(capdns, families, 2) == -1 && 546 errno == ENOTCAPABLE); 547 families[0] = AF_INET; 548 CHECK(cap_dns_family_limit(capdns, families, 1) == -1 && 549 errno == ENOTCAPABLE); 550 551 CHECK(runtest(capdns) == GETHOSTBYNAME2_AF_INET6); 552 553 cap_close(capdns); 554 555 /* 556 * Allow: 557 * type: ADDR 558 * family: AF_INET 559 */ 560 561 capdns = cap_clone(origcapdns); 562 CHECK(capdns != NULL); 563 564 types[0] = "NAME"; 565 types[1] = "ADDR"; 566 CHECK(cap_dns_type_limit(capdns, types, 2) == 0); 567 families[0] = AF_INET; 568 families[1] = AF_INET6; 569 CHECK(cap_dns_family_limit(capdns, families, 2) == 0); 570 types[0] = "ADDR"; 571 CHECK(cap_dns_type_limit(capdns, types, 1) == 0); 572 types[1] = "NAME"; 573 CHECK(cap_dns_type_limit(capdns, types, 2) == -1 && 574 errno == ENOTCAPABLE); 575 types[0] = "NAME"; 576 CHECK(cap_dns_type_limit(capdns, types, 1) == -1 && 577 errno == ENOTCAPABLE); 578 families[0] = AF_INET; 579 CHECK(cap_dns_family_limit(capdns, families, 1) == 0); 580 families[1] = AF_INET6; 581 CHECK(cap_dns_family_limit(capdns, families, 2) == -1 && 582 errno == ENOTCAPABLE); 583 families[0] = AF_INET6; 584 CHECK(cap_dns_family_limit(capdns, families, 1) == -1 && 585 errno == ENOTCAPABLE); 586 587 CHECK(runtest(capdns) == (GETHOSTBYADDR_AF_INET | GETADDRINFO_AF_INET)); 588 589 cap_close(capdns); 590 591 /* 592 * Allow: 593 * type: ADDR 594 * family: AF_INET6 595 */ 596 597 capdns = cap_clone(origcapdns); 598 CHECK(capdns != NULL); 599 600 types[0] = "NAME"; 601 types[1] = "ADDR"; 602 CHECK(cap_dns_type_limit(capdns, types, 2) == 0); 603 families[0] = AF_INET; 604 families[1] = AF_INET6; 605 CHECK(cap_dns_family_limit(capdns, families, 2) == 0); 606 types[0] = "ADDR"; 607 CHECK(cap_dns_type_limit(capdns, types, 1) == 0); 608 types[1] = "NAME"; 609 CHECK(cap_dns_type_limit(capdns, types, 2) == -1 && 610 errno == ENOTCAPABLE); 611 types[0] = "NAME"; 612 CHECK(cap_dns_type_limit(capdns, types, 1) == -1 && 613 errno == ENOTCAPABLE); 614 families[0] = AF_INET6; 615 CHECK(cap_dns_family_limit(capdns, families, 1) == 0); 616 families[1] = AF_INET; 617 CHECK(cap_dns_family_limit(capdns, families, 2) == -1 && 618 errno == ENOTCAPABLE); 619 families[0] = AF_INET; 620 CHECK(cap_dns_family_limit(capdns, families, 1) == -1 && 621 errno == ENOTCAPABLE); 622 623 CHECK(runtest(capdns) == (GETHOSTBYADDR_AF_INET6 | 624 GETADDRINFO_AF_INET6)); 625 626 cap_close(capdns); 627 628 /* Trying to rise the limits. */ 629 630 capdns = cap_clone(origcapdns); 631 CHECK(capdns != NULL); 632 633 types[0] = "NAME"; 634 CHECK(cap_dns_type_limit(capdns, types, 1) == 0); 635 families[0] = AF_INET; 636 CHECK(cap_dns_family_limit(capdns, families, 1) == 0); 637 638 types[0] = "NAME"; 639 types[1] = "ADDR"; 640 CHECK(cap_dns_type_limit(capdns, types, 2) == -1 && 641 errno == ENOTCAPABLE); 642 families[0] = AF_INET; 643 families[1] = AF_INET6; 644 CHECK(cap_dns_family_limit(capdns, families, 2) == -1 && 645 errno == ENOTCAPABLE); 646 647 types[0] = "ADDR"; 648 CHECK(cap_dns_type_limit(capdns, types, 1) == -1 && 649 errno == ENOTCAPABLE); 650 families[0] = AF_INET6; 651 CHECK(cap_dns_family_limit(capdns, families, 1) == -1 && 652 errno == ENOTCAPABLE); 653 654 CHECK(cap_dns_type_limit(capdns, NULL, 0) == -1 && 655 errno == ENOTCAPABLE); 656 CHECK(cap_dns_family_limit(capdns, NULL, 0) == -1 && 657 errno == ENOTCAPABLE); 658 659 /* Do the limits still hold? */ 660 CHECK(runtest(capdns) == (GETHOSTBYNAME | GETHOSTBYNAME2_AF_INET)); 661 662 cap_close(capdns); 663 664 capdns = cap_clone(origcapdns); 665 CHECK(capdns != NULL); 666 667 types[0] = "ADDR"; 668 CHECK(cap_dns_type_limit(capdns, types, 1) == 0); 669 families[0] = AF_INET6; 670 CHECK(cap_dns_family_limit(capdns, families, 1) == 0); 671 672 types[0] = "NAME"; 673 types[1] = "ADDR"; 674 CHECK(cap_dns_type_limit(capdns, types, 2) == -1 && 675 errno == ENOTCAPABLE); 676 families[0] = AF_INET; 677 families[1] = AF_INET6; 678 CHECK(cap_dns_family_limit(capdns, families, 2) == -1 && 679 errno == ENOTCAPABLE); 680 681 types[0] = "NAME"; 682 CHECK(cap_dns_type_limit(capdns, types, 1) == -1 && 683 errno == ENOTCAPABLE); 684 families[0] = AF_INET; 685 CHECK(cap_dns_family_limit(capdns, families, 1) == -1 && 686 errno == ENOTCAPABLE); 687 688 CHECK(cap_dns_type_limit(capdns, NULL, 0) == -1 && 689 errno == ENOTCAPABLE); 690 CHECK(cap_dns_family_limit(capdns, NULL, 0) == -1 && 691 errno == ENOTCAPABLE); 692 693 /* Do the limits still hold? */ 694 CHECK(runtest(capdns) == (GETHOSTBYADDR_AF_INET6 | 695 GETADDRINFO_AF_INET6)); 696 697 cap_close(capdns); 698 699 cap_close(origcapdns); 700 701 exit(0); 702 } 703