usr.sbin/rpcbind/tests/addrmerge_test.c

   1 /*-
   2  * Copyright (c) 2014 Spectra Logic Corporation
   3  * All rights reserved.
   4  *
   5  * Redistribution and use in source and binary forms, with or without
   6  * modification, are permitted provided that the following conditions
   7  * are met:
   8  * 1. Redistributions of source code must retain the above copyright
   9  *    notice, this list of conditions, and the following disclaimer,
  10  *    without modification.
  11  * 2. Redistributions in binary form must reproduce at minimum a disclaimer
  12  *    substantially similar to the "NO WARRANTY" disclaimer below
  13  *    ("Disclaimer") and any redistribution must be conditioned upon
  14  *    including a substantially similar Disclaimer requirement for further
  15  *    binary redistribution.
  16  *
  17  * NO WARRANTY
  18  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  19  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  20  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
  21  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  22  * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  23  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  24  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  25  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
  26  * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
  27  * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  28  * POSSIBILITY OF SUCH DAMAGES.
  29  *
  30  * $FreeBSD$
  31  */
  32
  33 #include <rpc/rpc.h>
  34 #include <sys/types.h>
  35 #include <sys/socket.h>
  36
  37 #include <net/if.h>
  38 #include <netinet/in.h>
  39 #include <arpa/inet.h>
  40
  41 #include <ifaddrs.h>
  42 #include <stdlib.h>
  43
  44 #include <atf-c.h>
  45
  46 #include "rpcbind.h"
  47
  48 #define MAX_IFADDRS 16
  49
  50 int debugging = false;
  51
  52 /* Data for mocking getifaddrs */
  53 struct ifaddr_storage {
  54         struct ifaddrs ifaddr;
  55         struct sockaddr_storage addr;
  56         struct sockaddr_storage mask;
  57         struct sockaddr_storage bcast;
  58 } mock_ifaddr_storage[MAX_IFADDRS];
  59 struct ifaddrs *mock_ifaddrs = NULL;
  60 int ifaddr_count = 0;
  61
  62 /* Data for mocking listen_addr */
  63 int bind_address_count = 0;
  64 struct sockaddr* bind_addresses[MAX_IFADDRS];
  65
  66 /* Stub library functions */
  67 void
  68 freeifaddrs(struct ifaddrs *ifp __unused)
  69 {
  70         return ;
  71 }
  72
  73 int
  74 getifaddrs(struct ifaddrs **ifap)
  75 {
  76         *ifap = mock_ifaddrs;
  77         return (0);
  78 }
  79
  80 static void
  81 mock_ifaddr4(const char* name, const char* addr, const char* mask,
  82     const char* bcast, unsigned int flags, bool bind)
  83 {
  84         struct ifaddrs *ifaddr = &mock_ifaddr_storage[ifaddr_count].ifaddr;
  85         struct sockaddr_in *in = (struct sockaddr_in*)
  86                                 &mock_ifaddr_storage[ifaddr_count].addr;
  87         struct sockaddr_in *mask_in = (struct sockaddr_in*)
  88                                 &mock_ifaddr_storage[ifaddr_count].mask;
  89         struct sockaddr_in *bcast_in = (struct sockaddr_in*)
  90                                 &mock_ifaddr_storage[ifaddr_count].bcast;
  91
  92         in->sin_family = AF_INET;
  93         in->sin_port = 0;
  94         in->sin_len = sizeof(*in);
  95         in->sin_addr.s_addr = inet_addr(addr);
  96         mask_in->sin_family = AF_INET;
  97         mask_in->sin_port = 0;
  98         mask_in->sin_len = sizeof(*mask_in);
  99         mask_in->sin_addr.s_addr = inet_addr(mask);
 100         bcast_in->sin_family = AF_INET;
 101         bcast_in->sin_port = 0;
 102         bcast_in->sin_len = sizeof(*bcast_in);
 103         bcast_in->sin_addr.s_addr = inet_addr(bcast);
 104         *ifaddr = (struct ifaddrs) {
 105                 .ifa_next = NULL,
 106                 .ifa_name = (char*) name,
 107                 .ifa_flags = flags,
 108                 .ifa_addr = (struct sockaddr*) in,
 109                 .ifa_netmask = (struct sockaddr*) mask_in,
 110                 .ifa_broadaddr = (struct sockaddr*) bcast_in,
 111                 .ifa_data = NULL,       /* addrmerge doesn't care*/
 112         };
 113
 114         if (ifaddr_count > 0)
 115                 mock_ifaddr_storage[ifaddr_count - 1].ifaddr.ifa_next = ifaddr;
 116         ifaddr_count++;
 117         mock_ifaddrs = &mock_ifaddr_storage[0].ifaddr;
 118
 119         /* Optionally simulate binding an ip ala "rpcbind -h foo" */
 120         if (bind) {
 121                 bind_addresses[bind_address_count] = (struct sockaddr*)in;
 122                 bind_address_count++;
 123         }
 124 }
 125
 126 #ifdef INET6
 127 static void
 128 mock_ifaddr6(const char* name, const char* addr, const char* mask,
 129     const char* bcast, unsigned int flags, uint32_t scope_id, bool bind)
 130 {
 131         struct ifaddrs *ifaddr = &mock_ifaddr_storage[ifaddr_count].ifaddr;
 132         struct sockaddr_in6 *in6 = (struct sockaddr_in6*)
 133                                 &mock_ifaddr_storage[ifaddr_count].addr;
 134         struct sockaddr_in6 *mask_in6 = (struct sockaddr_in6*)
 135                                 &mock_ifaddr_storage[ifaddr_count].mask;
 136         struct sockaddr_in6 *bcast_in6 = (struct sockaddr_in6*)
 137                                 &mock_ifaddr_storage[ifaddr_count].bcast;
 138
 139         in6->sin6_family = AF_INET6;
 140         in6->sin6_port = 0;
 141         in6->sin6_len = sizeof(*in6);
 142         in6->sin6_scope_id = scope_id;
 143         ATF_REQUIRE_EQ(1, inet_pton(AF_INET6, addr, (void*)&in6->sin6_addr));
 144         mask_in6->sin6_family = AF_INET6;
 145         mask_in6->sin6_port = 0;
 146         mask_in6->sin6_len = sizeof(*mask_in6);
 147         mask_in6->sin6_scope_id = scope_id;
 148         ATF_REQUIRE_EQ(1, inet_pton(AF_INET6, mask,
 149             (void*)&mask_in6->sin6_addr));
 150         bcast_in6->sin6_family = AF_INET6;
 151         bcast_in6->sin6_port = 0;
 152         bcast_in6->sin6_len = sizeof(*bcast_in6);
 153         bcast_in6->sin6_scope_id = scope_id;
 154         ATF_REQUIRE_EQ(1, inet_pton(AF_INET6, bcast,
 155             (void*)&bcast_in6->sin6_addr));
 156         *ifaddr = (struct ifaddrs) {
 157                 .ifa_next = NULL,
 158                 .ifa_name = (char*) name,
 159                 .ifa_flags = flags,
 160                 .ifa_addr = (struct sockaddr*) in6,
 161                 .ifa_netmask = (struct sockaddr*) mask_in6,
 162                 .ifa_broadaddr = (struct sockaddr*) bcast_in6,
 163                 .ifa_data = NULL,       /* addrmerge doesn't care*/
 164         };
 165
 166         if (ifaddr_count > 0)
 167                 mock_ifaddr_storage[ifaddr_count - 1].ifaddr.ifa_next = ifaddr;
 168         ifaddr_count++;
 169         mock_ifaddrs = &mock_ifaddr_storage[0].ifaddr;
 170
 171         /* Optionally simulate binding an ip ala "rpcbind -h foo" */
 172         if (bind) {
 173                 bind_addresses[bind_address_count] = (struct sockaddr*)in6;
 174                 bind_address_count++;
 175         }
 176 }
 177 #else
 178 static void
 179 mock_ifaddr6(const char* name __unused, const char* addr __unused,
 180     const char* mask __unused, const char* bcast __unused,
 181     unsigned int flags __unused, uint32_t scope_id __unused, bool bind __unused)
 182 {
 183 }
 184 #endif /*INET6 */
 185
 186 static void
 187 mock_lo0(void)
 188 {
 189         /*
 190          * This broadcast address looks wrong, but it's what getifaddrs(2)
 191          * actually returns.  It's invalid because IFF_BROADCAST is not set
 192          */
 193         mock_ifaddr4("lo0", "127.0.0.1", "255.0.0.0", "127.0.0.1",
 194             IFF_LOOPBACK | IFF_UP | IFF_RUNNING | IFF_MULTICAST, false);
 195         mock_ifaddr6("lo0", "::1", "ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff",
 196             "::1",
 197             IFF_LOOPBACK | IFF_UP | IFF_RUNNING | IFF_MULTICAST, 0, false);
 198 }
 199
 200 static void
 201 mock_igb0(void)
 202 {
 203         mock_ifaddr4("igb0", "192.0.2.2", "255.255.255.128", "192.0.2.127",
 204             IFF_UP | IFF_BROADCAST | IFF_RUNNING | IFF_SIMPLEX | IFF_MULTICAST,
 205             false);
 206         mock_ifaddr6("igb0", "2001:db8::2", "ffff:ffff:ffff:ffff::",
 207             "2001:db8::ffff:ffff:ffff:ffff",
 208             IFF_UP | IFF_BROADCAST | IFF_RUNNING | IFF_SIMPLEX | IFF_MULTICAST,
 209             0, false);
 210         /* Link local address */
 211         mock_ifaddr6("igb0", "fe80::2", "ffff:ffff:ffff:ffff::",
 212             "fe80::ffff:ffff:ffff:ffff",
 213             IFF_UP | IFF_BROADCAST | IFF_RUNNING | IFF_SIMPLEX | IFF_MULTICAST,
 214             2, false);
 215 }
 216
 217 /* On the same subnet as igb0 */
 218 static void
 219 mock_igb1(bool bind)
 220 {
 221         mock_ifaddr4("igb1", "192.0.2.3", "255.255.255.128", "192.0.2.127",
 222             IFF_UP | IFF_BROADCAST | IFF_RUNNING | IFF_SIMPLEX | IFF_MULTICAST,
 223             bind);
 224         mock_ifaddr6("igb1", "2001:db8::3", "ffff:ffff:ffff:ffff::",
 225             "2001:db8::ffff:ffff:ffff:ffff",
 226             IFF_UP | IFF_BROADCAST | IFF_RUNNING | IFF_SIMPLEX | IFF_MULTICAST,
 227             0, bind);
 228         /* Link local address */
 229         mock_ifaddr6("igb1", "fe80::3", "ffff:ffff:ffff:ffff::",
 230             "fe80::ffff:ffff:ffff:ffff",
 231             IFF_UP | IFF_BROADCAST | IFF_RUNNING | IFF_SIMPLEX | IFF_MULTICAST,
 232             3, bind);
 233 }
 234
 235 /* igb2 is on a different subnet than igb0 */
 236 static void
 237 mock_igb2(void)
 238 {
 239         mock_ifaddr4("igb2", "192.0.2.130", "255.255.255.128", "192.0.2.255",
 240             IFF_UP | IFF_BROADCAST | IFF_RUNNING | IFF_SIMPLEX | IFF_MULTICAST,
 241             false);
 242         mock_ifaddr6("igb2", "2001:db8:1::2", "ffff:ffff:ffff:ffff::",
 243             "2001:db8:1:0:ffff:ffff:ffff:ffff",
 244             IFF_UP | IFF_BROADCAST | IFF_RUNNING | IFF_SIMPLEX | IFF_MULTICAST,
 245             0, false);
 246 }
 247
 248 /* tun0 is a P2P interface */
 249 static void
 250 mock_tun0(void)
 251 {
 252         mock_ifaddr4("tun0", "192.0.2.5", "255.255.255.255", "192.0.2.6",
 253             IFF_UP | IFF_RUNNING | IFF_POINTOPOINT | IFF_MULTICAST, false);
 254         mock_ifaddr6("tun0", "2001:db8::5",
 255             "ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff",
 256             "2001:db8::6",
 257             IFF_UP | IFF_RUNNING | IFF_POINTOPOINT | IFF_MULTICAST, 0, false);
 258 }
 259
 260
 261 /* Stub rpcbind functions */
 262 int
 263 listen_addr(const struct sockaddr *sa)
 264 {
 265         int i;
 266
 267         if (bind_address_count == 0)
 268                 return (1);
 269
 270         for (i = 0; i < bind_address_count; i++) {
 271                 if (bind_addresses[i]->sa_family != sa->sa_family)
 272                         continue;
 273
 274                 if (0 == memcmp(bind_addresses[i]->sa_data, sa->sa_data,
 275                     sa->sa_len))
 276                         return (1);
 277         }
 278         return (0);
 279 }
 280
 281 struct netconfig*
 282 rpcbind_get_conf(const char* netid __unused)
 283 {
 284         /* Use static variables so we can return pointers to them */
 285         static char* lookups = NULL;
 286         static struct netconfig nconf_udp;
 287 #ifdef INET6
 288         static struct netconfig nconf_udp6;
 289 #endif /* INET6 */
 290
 291         nconf_udp.nc_netid = "udp"; //netid_storage;
 292         nconf_udp.nc_semantics = NC_TPI_CLTS;
 293         nconf_udp.nc_flag = NC_VISIBLE;
 294         nconf_udp.nc_protofmly = (char*)"inet";
 295         nconf_udp.nc_proto = (char*)"udp";
 296         nconf_udp.nc_device = (char*)"-";
 297         nconf_udp.nc_nlookups = 0;
 298         nconf_udp.nc_lookups = &lookups;
 299
 300 #ifdef INET6
 301         nconf_udp6.nc_netid = "udp6"; //netid_storage;
 302         nconf_udp6.nc_semantics = NC_TPI_CLTS;
 303         nconf_udp6.nc_flag = NC_VISIBLE;
 304         nconf_udp6.nc_protofmly = (char*)"inet6";
 305         nconf_udp6.nc_proto = (char*)"udp6";
 306         nconf_udp6.nc_device = (char*)"-";
 307         nconf_udp6.nc_nlookups = 0;
 308         nconf_udp6.nc_lookups = &lookups;
 309 #endif /* INET6 */
 310
 311         if (0 == strncmp("udp", netid, sizeof("udp")))
 312                 return (&nconf_udp);
 313 #ifdef INET6
 314         else if (0 == strncmp("udp6", netid, sizeof("udp6")))
 315                 return (&nconf_udp6);
 316 #endif /* INET6 */
 317         else
 318                 return (NULL);
 319 }
 320
 321 /*
 322  * Helper function used by most test cases
 323  * param recvdstaddr    If non-null, the uaddr on which the request was received
 324  */
 325 static char*
 326 do_addrmerge4(const char* recvdstaddr)
 327 {
 328         struct netbuf caller;
 329         struct sockaddr_in caller_in;
 330         const char *serv_uaddr, *clnt_uaddr, *netid;
 331
 332         /* caller contains the client's IP address */
 333         caller.maxlen = sizeof(struct sockaddr_storage);
 334         caller.len = sizeof(caller_in);
 335         caller_in.sin_family = AF_INET;
 336         caller_in.sin_len = sizeof(caller_in);
 337         caller_in.sin_port = 1234;
 338         caller_in.sin_addr.s_addr = inet_addr("192.0.2.1");
 339         caller.buf = (void*)&caller_in;
 340         if (recvdstaddr != NULL)
 341                 clnt_uaddr = recvdstaddr;
 342         else
 343                 clnt_uaddr = "192.0.2.1.3.46";
 344
 345         /* assume server is bound in INADDR_ANY port 814 */
 346         serv_uaddr = "0.0.0.0.3.46";
 347
 348         netid = "udp";
 349         return (addrmerge(&caller, serv_uaddr, clnt_uaddr, netid));
 350 }
 351
 352 #ifdef INET6
 353 /*
 354  * Variant of do_addrmerge4 where the caller has an IPv6 address
 355  * param recvdstaddr    If non-null, the uaddr on which the request was received
 356  */
 357 static char*
 358 do_addrmerge6(const char* recvdstaddr)
 359 {
 360         struct netbuf caller;
 361         struct sockaddr_in6 caller_in6;
 362         const char *serv_uaddr, *clnt_uaddr, *netid;
 363
 364         /* caller contains the client's IP address */
 365         caller.maxlen = sizeof(struct sockaddr_storage);
 366         caller.len = sizeof(caller_in6);
 367         caller_in6.sin6_family = AF_INET6;
 368         caller_in6.sin6_len = sizeof(caller_in6);
 369         caller_in6.sin6_port = 1234;
 370         ATF_REQUIRE_EQ(1, inet_pton(AF_INET6, "2001:db8::1",
 371             (void*)&caller_in6.sin6_addr));
 372         caller.buf = (void*)&caller_in6;
 373         if (recvdstaddr != NULL)
 374                 clnt_uaddr = recvdstaddr;
 375         else
 376                 clnt_uaddr = "2001:db8::1.3.46";
 377
 378         /* assume server is bound in INADDR_ANY port 814 */
 379         serv_uaddr = "::1.3.46";
 380
 381         netid = "udp6";
 382         return (addrmerge(&caller, serv_uaddr, clnt_uaddr, netid));
 383 }
 384
 385 /* Variant of do_addrmerge6 where the caller uses a link local address */
 386 static char*
 387 do_addrmerge6_ll(void)
 388 {
 389         struct netbuf caller;
 390         struct sockaddr_in6 caller_in6;
 391         const char *serv_uaddr, *clnt_uaddr, *netid;
 392
 393         /* caller contains the client's IP address */
 394         caller.maxlen = sizeof(struct sockaddr_storage);
 395         caller.len = sizeof(caller_in6);
 396         caller_in6.sin6_family = AF_INET6;
 397         caller_in6.sin6_len = sizeof(caller_in6);
 398         caller_in6.sin6_port = 1234;
 399         caller_in6.sin6_scope_id = 2; /* same as igb0 */
 400         ATF_REQUIRE_EQ(1, inet_pton(AF_INET6, "fe80::beef",
 401             (void*)&caller_in6.sin6_addr));
 402         caller.buf = (void*)&caller_in6;
 403         clnt_uaddr = "fe80::beef.3.46";
 404
 405         /* assume server is bound in INADDR_ANY port 814 */
 406         serv_uaddr = "::1.3.46";
 407
 408         netid = "udp6";
 409         return (addrmerge(&caller, serv_uaddr, clnt_uaddr, netid));
 410 }
 411 #endif /* INET6 */
 412
 413 ATF_TC_WITHOUT_HEAD(addrmerge_noifaddrs);
 414 ATF_TC_BODY(addrmerge_noifaddrs, tc)
 415 {
 416         char* maddr;
 417
 418         maddr = do_addrmerge4(NULL);
 419
 420         /* Since getifaddrs returns null, addrmerge must too */
 421         ATF_CHECK_EQ(NULL, maddr);
 422 }
 423
 424 ATF_TC_WITHOUT_HEAD(addrmerge_localhost_only);
 425 ATF_TC_BODY(addrmerge_localhost_only, tc)
 426 {
 427         char *maddr;
 428
 429         /* getifaddrs will return localhost only */
 430         mock_lo0();
 431
 432         maddr = do_addrmerge4(NULL);
 433
 434         /* We must return localhost if there is nothing better */
 435         ATF_REQUIRE(maddr != NULL);
 436         ATF_CHECK_STREQ("127.0.0.1.3.46", maddr);
 437         free(maddr);
 438 }
 439
 440 ATF_TC_WITHOUT_HEAD(addrmerge_singlehomed);
 441 ATF_TC_BODY(addrmerge_singlehomed, tc)
 442 {
 443         char *maddr;
 444
 445         /* getifaddrs will return one public address */
 446         mock_lo0();
 447         mock_igb0();
 448
 449         maddr = do_addrmerge4(NULL);
 450
 451         ATF_REQUIRE(maddr != NULL);
 452         ATF_CHECK_STREQ("192.0.2.2.3.46", maddr);
 453         free(maddr);
 454 }
 455
 456 ATF_TC_WITHOUT_HEAD(addrmerge_one_addr_on_each_subnet);
 457 ATF_TC_BODY(addrmerge_one_addr_on_each_subnet, tc)
 458 {
 459         char *maddr;
 460
 461         mock_lo0();
 462         mock_igb0();
 463         mock_igb2();
 464
 465         maddr = do_addrmerge4(NULL);
 466
 467         /* We must return the address on the caller's subnet */
 468         ATF_REQUIRE(maddr != NULL);
 469         ATF_CHECK_STREQ("192.0.2.2.3.46", maddr);
 470         free(maddr);
 471 }
 472
 473
 474 /*
 475  * Like addrmerge_one_addr_on_each_subnet, but getifaddrs returns a different
 476  * order
 477  */
 478 ATF_TC_WITHOUT_HEAD(addrmerge_one_addr_on_each_subnet_rev);
 479 ATF_TC_BODY(addrmerge_one_addr_on_each_subnet_rev, tc)
 480 {
 481         char *maddr;
 482
 483         /* getifaddrs will return one public address on each of two subnets */
 484         mock_igb2();
 485         mock_igb0();
 486         mock_lo0();
 487
 488         maddr = do_addrmerge4(NULL);
 489
 490         /* We must return the address on the caller's subnet */
 491         ATF_REQUIRE(maddr != NULL);
 492         ATF_CHECK_STREQ("192.0.2.2.3.46", maddr);
 493         free(maddr);
 494 }
 495
 496 ATF_TC_WITHOUT_HEAD(addrmerge_point2point);
 497 ATF_TC_BODY(addrmerge_point2point, tc)
 498 {
 499         char *maddr;
 500
 501         /* getifaddrs will return one normal and one p2p address */
 502         mock_lo0();
 503         mock_igb2();
 504         mock_tun0();
 505
 506         maddr = do_addrmerge4(NULL);
 507
 508         /* addrmerge should disprefer P2P interfaces */
 509         ATF_REQUIRE(maddr != NULL);
 510         ATF_CHECK_STREQ("192.0.2.130.3.46", maddr);
 511         free(maddr);
 512 }
 513
 514 /* Like addrerge_point2point, but getifaddrs returns a different order */
 515 ATF_TC_WITHOUT_HEAD(addrmerge_point2point_rev);
 516 ATF_TC_BODY(addrmerge_point2point_rev, tc)
 517 {
 518         char *maddr;
 519
 520         /* getifaddrs will return one normal and one p2p address */
 521         mock_tun0();
 522         mock_igb2();
 523         mock_lo0();
 524
 525         maddr = do_addrmerge4(NULL);
 526
 527         /* addrmerge should disprefer P2P interfaces */
 528         ATF_REQUIRE(maddr != NULL);
 529         ATF_CHECK_STREQ("192.0.2.130.3.46", maddr);
 530         free(maddr);
 531 }
 532
 533 /*
 534  * Simulate using rpcbind -h to select just one ip when the subnet has
 535  * multiple
 536  */
 537 ATF_TC_WITHOUT_HEAD(addrmerge_bindip);
 538 ATF_TC_BODY(addrmerge_bindip, tc)
 539 {
 540         char *maddr;
 541
 542         /* getifaddrs will return one public address on each of two subnets */
 543         mock_lo0();
 544         mock_igb0();
 545         mock_igb1(true);
 546
 547         maddr = do_addrmerge4(NULL);
 548
 549         /* We must return the address to which we are bound */
 550         ATF_REQUIRE(maddr != NULL);
 551         ATF_CHECK_STREQ("192.0.2.3.3.46", maddr);
 552         free(maddr);
 553 }
 554
 555 /* Like addrmerge_bindip, but getifaddrs returns a different order */
 556 ATF_TC_WITHOUT_HEAD(addrmerge_bindip_rev);
 557 ATF_TC_BODY(addrmerge_bindip_rev, tc)
 558 {
 559         char *maddr;
 560
 561         /* getifaddrs will return one public address on each of two subnets */
 562         mock_igb1(true);
 563         mock_igb0();
 564         mock_lo0();
 565
 566         maddr = do_addrmerge4(NULL);
 567
 568         /* We must return the address to which we are bound */
 569         ATF_REQUIRE(maddr != NULL);
 570         ATF_CHECK_STREQ("192.0.2.3.3.46", maddr);
 571         free(maddr);
 572 }
 573
 574 /*
 575  * The address on which the request was received is known, and is provided as
 576  * the hint.
 577  */
 578 ATF_TC_WITHOUT_HEAD(addrmerge_recvdstaddr);
 579 ATF_TC_BODY(addrmerge_recvdstaddr, tc)
 580 {
 581         char *maddr;
 582
 583         mock_lo0();
 584         mock_igb0();
 585         mock_igb1(false);
 586
 587         maddr = do_addrmerge4("192.0.2.2.3.46");
 588
 589         /* We must return the address on which the request was received */
 590         ATF_REQUIRE(maddr != NULL);
 591         ATF_CHECK_STREQ("192.0.2.2.3.46", maddr);
 592         free(maddr);
 593 }
 594
 595 ATF_TC_WITHOUT_HEAD(addrmerge_recvdstaddr_rev);
 596 ATF_TC_BODY(addrmerge_recvdstaddr_rev, tc)
 597 {
 598         char *maddr;
 599
 600         mock_igb1(false);
 601         mock_igb0();
 602         mock_lo0();
 603
 604         maddr = do_addrmerge4("192.0.2.2.3.46");
 605
 606         /* We must return the address on which the request was received */
 607         ATF_REQUIRE(maddr != NULL);
 608         ATF_CHECK_STREQ("192.0.2.2.3.46", maddr);
 609         free(maddr);
 610 }
 611
 612 #ifdef INET6
 613 ATF_TC_WITHOUT_HEAD(addrmerge_localhost_only6);
 614 ATF_TC_BODY(addrmerge_localhost_only6, tc)
 615 {
 616         char *maddr;
 617
 618         /* getifaddrs will return localhost only */
 619         mock_lo0();
 620
 621         maddr = do_addrmerge6(NULL);
 622
 623         /* We must return localhost if there is nothing better */
 624         ATF_REQUIRE(maddr != NULL);
 625         ATF_CHECK_STREQ("::1.3.46", maddr);
 626         free(maddr);
 627 }
 628
 629 ATF_TC_WITHOUT_HEAD(addrmerge_singlehomed6);
 630 ATF_TC_BODY(addrmerge_singlehomed6, tc)
 631 {
 632         char *maddr;
 633
 634         /* getifaddrs will return one public address */
 635         mock_lo0();
 636         mock_igb0();
 637
 638         maddr = do_addrmerge6(NULL);
 639
 640         ATF_REQUIRE(maddr != NULL);
 641         ATF_CHECK_STREQ("2001:db8::2.3.46", maddr);
 642         free(maddr);
 643 }
 644
 645 ATF_TC_WITHOUT_HEAD(addrmerge_one_addr_on_each_subnet6);
 646 ATF_TC_BODY(addrmerge_one_addr_on_each_subnet6, tc)
 647 {
 648         char *maddr;
 649
 650         mock_lo0();
 651         mock_igb0();
 652         mock_igb2();
 653
 654         maddr = do_addrmerge6(NULL);
 655
 656         /* We must return the address on the caller's subnet */
 657         ATF_REQUIRE(maddr != NULL);
 658         ATF_CHECK_STREQ("2001:db8::2.3.46", maddr);
 659         free(maddr);
 660 }
 661
 662
 663 /*
 664  * Like addrmerge_one_addr_on_each_subnet6, but getifaddrs returns a different
 665  * order
 666  */
 667 ATF_TC_WITHOUT_HEAD(addrmerge_one_addr_on_each_subnet6_rev);
 668 ATF_TC_BODY(addrmerge_one_addr_on_each_subnet6_rev, tc)
 669 {
 670         char *maddr;
 671
 672         /* getifaddrs will return one public address on each of two subnets */
 673         mock_igb2();
 674         mock_igb0();
 675         mock_lo0();
 676
 677         maddr = do_addrmerge6(NULL);
 678
 679         /* We must return the address on the caller's subnet */
 680         ATF_REQUIRE(maddr != NULL);
 681         ATF_CHECK_STREQ("2001:db8::2.3.46", maddr);
 682         free(maddr);
 683 }
 684
 685 ATF_TC_WITHOUT_HEAD(addrmerge_point2point6);
 686 ATF_TC_BODY(addrmerge_point2point6, tc)
 687 {
 688         char *maddr;
 689
 690         /* getifaddrs will return one normal and one p2p address */
 691         mock_lo0();
 692         mock_igb2();
 693         mock_tun0();
 694
 695         maddr = do_addrmerge6(NULL);
 696
 697         /* addrmerge should disprefer P2P interfaces */
 698         ATF_REQUIRE(maddr != NULL);
 699         ATF_CHECK_STREQ("2001:db8:1::2.3.46", maddr);
 700         free(maddr);
 701 }
 702
 703 /* Like addrerge_point2point, but getifaddrs returns a different order */
 704 ATF_TC_WITHOUT_HEAD(addrmerge_point2point6_rev);
 705 ATF_TC_BODY(addrmerge_point2point6_rev, tc)
 706 {
 707         char *maddr;
 708
 709         /* getifaddrs will return one normal and one p2p address */
 710         mock_tun0();
 711         mock_igb2();
 712         mock_lo0();
 713
 714         maddr = do_addrmerge6(NULL);
 715
 716         /* addrmerge should disprefer P2P interfaces */
 717         ATF_REQUIRE(maddr != NULL);
 718         ATF_CHECK_STREQ("2001:db8:1::2.3.46", maddr);
 719         free(maddr);
 720 }
 721
 722 ATF_TC_WITHOUT_HEAD(addrmerge_bindip6);
 723 ATF_TC_BODY(addrmerge_bindip6, tc)
 724 {
 725         char *maddr;
 726
 727         /* getifaddrs will return one public address on each of two subnets */
 728         mock_lo0();
 729         mock_igb0();
 730         mock_igb1(true);
 731
 732         maddr = do_addrmerge6(NULL);
 733
 734         /* We must return the address to which we are bound */
 735         ATF_REQUIRE(maddr != NULL);
 736         ATF_CHECK_STREQ("2001:db8::3.3.46", maddr);
 737         free(maddr);
 738 }
 739
 740 /* Like addrerge_bindip, but getifaddrs returns a different order */
 741 ATF_TC_WITHOUT_HEAD(addrmerge_bindip6_rev);
 742 ATF_TC_BODY(addrmerge_bindip6_rev, tc)
 743 {
 744         char *maddr;
 745
 746         /* getifaddrs will return one public address on each of two subnets */
 747         mock_igb1(true);
 748         mock_igb0();
 749         mock_lo0();
 750
 751         maddr = do_addrmerge6(NULL);
 752
 753         /* We must return the address to which we are bound */
 754         ATF_REQUIRE(maddr != NULL);
 755         ATF_CHECK_STREQ("2001:db8::3.3.46", maddr);
 756         free(maddr);
 757 }
 758
 759 /*
 760  * IPv6 Link Local addresses with the same scope id as the caller, if the caller
 761  * is also a link local address, should be preferred
 762  */
 763 ATF_TC_WITHOUT_HEAD(addrmerge_ipv6_linklocal);
 764 ATF_TC_BODY(addrmerge_ipv6_linklocal, tc)
 765 {
 766         char *maddr;
 767
 768         /*
 769          * getifaddrs will return two link local addresses with the same netmask
 770          * and prefix but different scope IDs
 771          */
 772         mock_igb1(false);
 773         mock_igb0();
 774         mock_lo0();
 775
 776         maddr = do_addrmerge6_ll();
 777
 778         /* We must return the address to which we are bound */
 779         ATF_REQUIRE(maddr != NULL);
 780         ATF_CHECK_STREQ("fe80::2.3.46", maddr);
 781         free(maddr);
 782 }
 783
 784 ATF_TC_WITHOUT_HEAD(addrmerge_ipv6_linklocal_rev);
 785 ATF_TC_BODY(addrmerge_ipv6_linklocal_rev, tc)
 786 {
 787         char *maddr;
 788
 789         /*
 790          * getifaddrs will return two link local addresses with the same netmask
 791          * and prefix but different scope IDs
 792          */
 793         mock_lo0();
 794         mock_igb0();
 795         mock_igb1(false);
 796
 797         maddr = do_addrmerge6_ll();
 798
 799         /* We must return the address to which we are bound */
 800         ATF_REQUIRE(maddr != NULL);
 801         ATF_CHECK_STREQ("fe80::2.3.46", maddr);
 802         free(maddr);
 803 }
 804
 805 ATF_TC_WITHOUT_HEAD(addrmerge_recvdstaddr6);
 806 ATF_TC_BODY(addrmerge_recvdstaddr6, tc)
 807 {
 808         char *maddr;
 809
 810         mock_lo0();
 811         mock_igb0();
 812         mock_igb1(false);
 813
 814         maddr = do_addrmerge6("2001:db8::2.3.46");
 815
 816         /* We must return the address on which the request was received */
 817         ATF_REQUIRE(maddr != NULL);
 818         ATF_CHECK_STREQ("2001:db8::2.3.46", maddr);
 819         free(maddr);
 820 }
 821
 822 ATF_TC_WITHOUT_HEAD(addrmerge_recvdstaddr6_rev);
 823 ATF_TC_BODY(addrmerge_recvdstaddr6_rev, tc)
 824 {
 825         char *maddr;
 826
 827         mock_igb1(false);
 828         mock_igb0();
 829         mock_lo0();
 830
 831         maddr = do_addrmerge6("2001:db8::2.3.46");
 832
 833         /* We must return the address on which the request was received */
 834         ATF_REQUIRE(maddr != NULL);
 835         ATF_CHECK_STREQ("2001:db8::2.3.46", maddr);
 836         free(maddr);
 837 }
 838 #endif /* INET6 */
 839
 840
 841 ATF_TP_ADD_TCS(tp)
 842 {
 843         ATF_TP_ADD_TC(tp, addrmerge_noifaddrs);
 844         ATF_TP_ADD_TC(tp, addrmerge_localhost_only);
 845         ATF_TP_ADD_TC(tp, addrmerge_singlehomed);
 846         ATF_TP_ADD_TC(tp, addrmerge_one_addr_on_each_subnet);
 847         ATF_TP_ADD_TC(tp, addrmerge_one_addr_on_each_subnet_rev);
 848         ATF_TP_ADD_TC(tp, addrmerge_point2point);
 849         ATF_TP_ADD_TC(tp, addrmerge_point2point_rev);
 850         ATF_TP_ADD_TC(tp, addrmerge_bindip);
 851         ATF_TP_ADD_TC(tp, addrmerge_bindip_rev);
 852         ATF_TP_ADD_TC(tp, addrmerge_recvdstaddr);
 853         ATF_TP_ADD_TC(tp, addrmerge_recvdstaddr_rev);
 854 #ifdef INET6
 855         ATF_TP_ADD_TC(tp, addrmerge_localhost_only6);
 856         ATF_TP_ADD_TC(tp, addrmerge_singlehomed6);
 857         ATF_TP_ADD_TC(tp, addrmerge_one_addr_on_each_subnet6);
 858         ATF_TP_ADD_TC(tp, addrmerge_one_addr_on_each_subnet6_rev);
 859         ATF_TP_ADD_TC(tp, addrmerge_point2point6);
 860         ATF_TP_ADD_TC(tp, addrmerge_point2point6_rev);
 861         ATF_TP_ADD_TC(tp, addrmerge_bindip6);
 862         ATF_TP_ADD_TC(tp, addrmerge_bindip6_rev);
 863         ATF_TP_ADD_TC(tp, addrmerge_ipv6_linklocal);
 864         ATF_TP_ADD_TC(tp, addrmerge_ipv6_linklocal_rev);
 865         ATF_TP_ADD_TC(tp, addrmerge_recvdstaddr6);
 866         ATF_TP_ADD_TC(tp, addrmerge_recvdstaddr6_rev);
 867 #endif
 868
 869         return (atf_no_error());
 870 }