ipsec-tools/setkey/test-pfkey.c

   1 /*      $KAME: test-pfkey.c,v 1.4 2000/06/07 00:29:14 itojun Exp $      */
   2
   3 /*
   4  * Copyright (C) 1995, 1996, 1997, 1998, and 1999 WIDE Project.
   5  * All rights reserved.
   6  *
   7  * Redistribution and use in source and binary forms, with or without
   8  * modification, are permitted provided that the following conditions
   9  * are met:
  10  * 1. Redistributions of source code must retain the above copyright
  11  *    notice, this list of conditions and the following disclaimer.
  12  * 2. Redistributions in binary form must reproduce the above copyright
  13  *    notice, this list of conditions and the following disclaimer in the
  14  *    documentation and/or other materials provided with the distribution.
  15  * 3. Neither the name of the project nor the names of its contributors
  16  *    may be used to endorse or promote products derived from this software
  17  *    without specific prior written permission.
  18  *
  19  * THIS SOFTWARE IS PROVIDED BY THE PROJECT 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 PROJECT 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/types.h>
  33 #include <sys/param.h>
  34 #include <sys/socket.h>
  35 #include <net/route.h>
  36 #include <netinet/in.h>
  37 #include <System/net/pfkeyv2.h>
  38 #include <System/netkey/keydb.h>
  39 #include <System/netkey/key_var.h>
  40 #include <System/netkey/key_debug.h>
  41
  42 #include <stdio.h>
  43 #include <stdlib.h>
  44 #include <limits.h>
  45 #include <string.h>
  46 #include <ctype.h>
  47 #include <unistd.h>
  48 #include <errno.h>
  49 #include <netdb.h>
  50
  51 u_char m_buf[BUFSIZ];
  52 u_int m_len;
  53 char *pname;
  54
  55 void Usage __P((void));
  56 int sendkeymsg __P((void));
  57 void key_setsadbmsg __P((u_int));
  58 void key_setsadbsens __P((void));
  59 void key_setsadbprop __P((void));
  60 void key_setsadbid __P((u_int, caddr_t));
  61 void key_setsadblft __P((u_int, u_int));
  62 void key_setspirange __P((void));
  63 void key_setsadbkey __P((u_int, caddr_t));
  64 void key_setsadbsa __P((void));
  65 void key_setsadbaddr __P((u_int, u_int, caddr_t));
  66 void key_setsadbextbuf __P((caddr_t, int, caddr_t, int, caddr_t, int));
  67
  68 void
  69 Usage()
  70 {
  71         printf("Usage:\t%s number\n", pname);
  72         exit(0);
  73 }
  74
  75 int
  76 main(ac, av)
  77         int ac;
  78         char **av;
  79 {
  80         pname = *av;
  81
  82         if (ac == 1) Usage();
  83
  84         key_setsadbmsg(atoi(*(av+1)));
  85         sendkeymsg();
  86
  87         exit(0);
  88 }
  89
  90 /* %%% */
  91 int
  92 sendkeymsg()
  93 {
  94         u_char rbuf[1024 * 32]; /* XXX: Enough ? Should I do MSG_PEEK ? */
  95         int so, len;
  96
  97         if ((so = socket(PF_KEY, SOCK_RAW, PF_KEY_V2)) < 0) {
  98                 perror("socket(PF_KEY)");
  99                 goto end;
 100         }
 101 #if 0
 102     {
 103 #include <sys/time.h>
 104         struct timeval tv;
 105         tv.tv_sec = 1;
 106         tv.tv_usec = 0;
 107         if (setsockopt(so, SOL_SOCKET, SO_RCVTIMEO, &tv, sizeof(tv)) < 0) {
 108                 perror("setsockopt");
 109                 goto end;
 110         }
 111     }
 112 #endif
 113
 114         pfkey_sadump((struct sadb_msg *)m_buf);
 115
 116         if ((len = send(so, m_buf, m_len, 0)) < 0) {
 117                 perror("send");
 118                 goto end;
 119         }
 120
 121         if ((len = recv(so, rbuf, sizeof(rbuf), 0)) < 0) {
 122                 perror("recv");
 123                 goto end;
 124         }
 125
 126         pfkey_sadump((struct sadb_msg *)rbuf);
 127
 128 end:
 129         (void)close(so);
 130         return(0);
 131 }
 132
 133 void
 134 key_setsadbmsg(type)
 135         u_int type;
 136 {
 137         struct sadb_msg m_msg;
 138
 139         memset(&m_msg, 0, sizeof(m_msg));
 140         m_msg.sadb_msg_version = PF_KEY_V2;
 141         m_msg.sadb_msg_type = type;
 142         m_msg.sadb_msg_errno = 0;
 143         m_msg.sadb_msg_satype = SADB_SATYPE_ESP;
 144 #if 0
 145         m_msg.sadb_msg_reserved = 0;
 146 #endif
 147         m_msg.sadb_msg_seq = 0;
 148         m_msg.sadb_msg_pid = getpid();
 149
 150         m_len = sizeof(struct sadb_msg);
 151         memcpy(m_buf, &m_msg, m_len);
 152
 153         switch (type) {
 154         case SADB_GETSPI:
 155                 /*<base, address(SD), SPI range>*/
 156                 key_setsadbaddr(SADB_EXT_ADDRESS_SRC, AF_INET, "10.0.3.4");
 157                 key_setsadbaddr(SADB_EXT_ADDRESS_DST, AF_INET, "127.0.0.1");
 158                 key_setspirange();
 159                 /*<base, SA(*), address(SD)>*/
 160                 break;
 161
 162         case SADB_ADD:
 163                 /* <base, SA, (lifetime(HSC),) address(SD), (address(P),)
 164                    key(AE), (identity(SD),) (sensitivity)> */
 165                 key_setsadbaddr(SADB_EXT_ADDRESS_PROXY, AF_INET6, "3ffe::1");
 166         case SADB_UPDATE:
 167                 key_setsadbsa();
 168                 key_setsadblft(SADB_EXT_LIFETIME_HARD, 10);
 169                 key_setsadblft(SADB_EXT_LIFETIME_SOFT, 5);
 170                 key_setsadbaddr(SADB_EXT_ADDRESS_SRC, AF_INET, "192.168.1.1");
 171                 key_setsadbaddr(SADB_EXT_ADDRESS_DST, AF_INET, "10.0.3.4");
 172                 /* XXX key_setsadbkey(SADB_EXT_KEY_AUTH, "abcde"); */
 173                 key_setsadbkey(SADB_EXT_KEY_AUTH, "1234567812345678");
 174                 key_setsadbkey(SADB_EXT_KEY_ENCRYPT, "12345678");
 175                 key_setsadbid(SADB_EXT_IDENTITY_SRC, "hoge1234@hoge.com");
 176                 key_setsadbid(SADB_EXT_IDENTITY_DST, "hage5678@hage.net");
 177                 key_setsadbsens();
 178                 /* <base, SA, (lifetime(HSC),) address(SD), (address(P),)
 179                   (identity(SD),) (sensitivity)> */
 180                 break;
 181
 182         case SADB_DELETE:
 183                 /* <base, SA(*), address(SDP)> */
 184                 key_setsadbsa();
 185                 key_setsadbaddr(SADB_EXT_ADDRESS_SRC, AF_INET, "192.168.1.1");
 186                 key_setsadbaddr(SADB_EXT_ADDRESS_DST, AF_INET, "10.0.3.4");
 187                 key_setsadbaddr(SADB_EXT_ADDRESS_PROXY, AF_INET6, "3ffe::1");
 188                 /* <base, SA(*), address(SDP)> */
 189                 break;
 190
 191         case SADB_GET:
 192                 /* <base, SA(*), address(SDP)> */
 193                 key_setsadbsa();
 194                 key_setsadbaddr(SADB_EXT_ADDRESS_SRC, AF_INET, "192.168.1.1");
 195                 key_setsadbaddr(SADB_EXT_ADDRESS_DST, AF_INET, "10.0.3.4");
 196                 key_setsadbaddr(SADB_EXT_ADDRESS_PROXY, AF_INET6, "3ffe::1");
 197                 /* <base, SA, (lifetime(HSC),) address(SD), (address(P),)
 198                    key(AE), (identity(SD),) (sensitivity)> */
 199                 break;
 200
 201         case SADB_ACQUIRE:
 202                 /* <base, address(SD), (address(P),) (identity(SD),)
 203                    (sensitivity,) proposal> */
 204                 key_setsadbaddr(SADB_EXT_ADDRESS_SRC, AF_INET, "192.168.1.1");
 205                 key_setsadbaddr(SADB_EXT_ADDRESS_DST, AF_INET, "10.0.3.4");
 206                 key_setsadbaddr(SADB_EXT_ADDRESS_PROXY, AF_INET6, "3ffe::1");
 207                 key_setsadbid(SADB_EXT_IDENTITY_SRC, "hoge1234@hoge.com");
 208                 key_setsadbid(SADB_EXT_IDENTITY_DST, "hage5678@hage.net");
 209                 key_setsadbsens();
 210                 key_setsadbprop();
 211                 /* <base, address(SD), (address(P),) (identity(SD),)
 212                    (sensitivity,) proposal> */
 213                 break;
 214
 215         case SADB_REGISTER:
 216                 /* <base> */
 217                 /* <base, supported> */
 218                 break;
 219
 220         case SADB_EXPIRE:
 221         case SADB_FLUSH:
 222                 break;
 223
 224         case SADB_DUMP:
 225                 break;
 226
 227         case SADB_X_PROMISC:
 228                 /* <base> */
 229                 /* <base, base(, others)> */
 230                 break;
 231
 232         case SADB_X_PCHANGE:
 233                 break;
 234
 235         /* for SPD management */
 236         case SADB_X_SPDFLUSH:
 237         case SADB_X_SPDDUMP:
 238                 break;
 239
 240         case SADB_X_SPDADD:
 241 #if 0
 242             {
 243                 struct sadb_x_policy m_policy;
 244
 245                 m_policy.sadb_x_policy_len = PFKEY_UNIT64(sizeof(m_policy));
 246                 m_policy.sadb_x_policy_exttype = SADB_X_EXT_POLICY;
 247                 m_policy.sadb_x_policy_type = SADB_X_PL_IPSEC;
 248                 m_policy.sadb_x_policy_esp_trans = 1;
 249                 m_policy.sadb_x_policy_ah_trans = 2;
 250                 m_policy.sadb_x_policy_esp_network = 3;
 251                 m_policy.sadb_x_policy_ah_network = 4;
 252                 m_policy.sadb_x_policy_reserved = 0;
 253
 254                 memcpy(m_buf + m_len, &m_policy, sizeof(struct sadb_x_policy));
 255                 m_len += sizeof(struct sadb_x_policy);
 256             }
 257 #endif
 258
 259         case SADB_X_SPDDELETE:
 260                 key_setsadbaddr(SADB_EXT_ADDRESS_SRC, AF_INET, "192.168.1.1");
 261                 key_setsadbaddr(SADB_EXT_ADDRESS_DST, AF_INET, "10.0.3.4");
 262                 break;
 263         }
 264
 265         ((struct sadb_msg *)m_buf)->sadb_msg_len = PFKEY_UNIT64(m_len);
 266
 267         return;
 268 }
 269
 270 void
 271 key_setsadbsens()
 272 {
 273         struct sadb_sens m_sens;
 274         u_char buf[64];
 275         u_int s, i, slen, ilen, len;
 276
 277         /* make sens & integ */
 278         s = htonl(0x01234567);
 279         i = htonl(0x89abcdef);
 280         slen = sizeof(s);
 281         ilen = sizeof(i);
 282         memcpy(buf, &s, slen);
 283         memcpy(buf + slen, &i, ilen);
 284
 285         len = sizeof(m_sens) + PFKEY_ALIGN8(slen) + PFKEY_ALIGN8(ilen);
 286         m_sens.sadb_sens_len = PFKEY_UNIT64(len);
 287         m_sens.sadb_sens_exttype = SADB_EXT_SENSITIVITY;
 288         m_sens.sadb_sens_dpd = 1;
 289         m_sens.sadb_sens_sens_level = 2;
 290         m_sens.sadb_sens_sens_len = PFKEY_ALIGN8(slen);
 291         m_sens.sadb_sens_integ_level = 3;
 292         m_sens.sadb_sens_integ_len = PFKEY_ALIGN8(ilen);
 293         m_sens.sadb_sens_reserved = 0;
 294
 295         key_setsadbextbuf(m_buf, m_len,
 296                         (caddr_t)&m_sens, sizeof(struct sadb_sens),
 297                         buf, slen + ilen);
 298         m_len += len;
 299
 300         return;
 301 }
 302
 303 void
 304 key_setsadbprop()
 305 {
 306         struct sadb_prop m_prop;
 307         struct sadb_comb *m_comb;
 308         u_char buf[256];
 309 #if defined(SADB_X_EALG_AESCBC) && defined(SADB_X_AALG_SHA2_256)
 310         u_int len = sizeof(m_prop) + sizeof(m_comb) * 3;
 311 #else
 312         u_int len = sizeof(m_prop) + sizeof(m_comb) * 2;
 313 #endif
 314
 315         /* make prop & comb */
 316         m_prop.sadb_prop_len = PFKEY_UNIT64(len);
 317         m_prop.sadb_prop_exttype = SADB_EXT_PROPOSAL;
 318         m_prop.sadb_prop_replay = 0;
 319         m_prop.sadb_prop_reserved[0] = 0;
 320         m_prop.sadb_prop_reserved[1] = 0;
 321         m_prop.sadb_prop_reserved[2] = 0;
 322
 323         /* the 1st is ESP DES-CBC HMAC-MD5 */
 324         m_comb = (struct sadb_comb *)buf;
 325         m_comb->sadb_comb_auth = SADB_AALG_MD5HMAC;
 326         m_comb->sadb_comb_encrypt = SADB_EALG_DESCBC;
 327         m_comb->sadb_comb_flags = 0;
 328         m_comb->sadb_comb_auth_minbits = 8;
 329         m_comb->sadb_comb_auth_maxbits = 96;
 330         m_comb->sadb_comb_encrypt_minbits = 64;
 331         m_comb->sadb_comb_encrypt_maxbits = 64;
 332         m_comb->sadb_comb_reserved = 0;
 333         m_comb->sadb_comb_soft_allocations = 0;
 334         m_comb->sadb_comb_hard_allocations = 0;
 335         m_comb->sadb_comb_soft_bytes = 0;
 336         m_comb->sadb_comb_hard_bytes = 0;
 337         m_comb->sadb_comb_soft_addtime = 0;
 338         m_comb->sadb_comb_hard_addtime = 0;
 339         m_comb->sadb_comb_soft_usetime = 0;
 340         m_comb->sadb_comb_hard_usetime = 0;
 341
 342         /* the 2st is ESP 3DES-CBC and AH HMAC-SHA1 */
 343         m_comb = (struct sadb_comb *)(buf + sizeof(*m_comb));
 344         m_comb->sadb_comb_auth = SADB_AALG_SHA1HMAC;
 345         m_comb->sadb_comb_encrypt = SADB_EALG_3DESCBC;
 346         m_comb->sadb_comb_flags = 0;
 347         m_comb->sadb_comb_auth_minbits = 8;
 348         m_comb->sadb_comb_auth_maxbits = 96;
 349         m_comb->sadb_comb_encrypt_minbits = 64;
 350         m_comb->sadb_comb_encrypt_maxbits = 64;
 351         m_comb->sadb_comb_reserved = 0;
 352         m_comb->sadb_comb_soft_allocations = 0;
 353         m_comb->sadb_comb_hard_allocations = 0;
 354         m_comb->sadb_comb_soft_bytes = 0;
 355         m_comb->sadb_comb_hard_bytes = 0;
 356         m_comb->sadb_comb_soft_addtime = 0;
 357         m_comb->sadb_comb_hard_addtime = 0;
 358         m_comb->sadb_comb_soft_usetime = 0;
 359         m_comb->sadb_comb_hard_usetime = 0;
 360
 361         key_setsadbextbuf(m_buf, m_len,
 362                         (caddr_t)&m_prop, sizeof(struct sadb_prop),
 363                         buf, sizeof(*m_comb) * 2);
 364         m_len += len;
 365
 366  #if defined(SADB_X_EALG_AESCBC) && defined(SADB_X_AALG_SHA2_256)
 367         /* the 3rd is ESP AES-CBC and AH HMAC-SHA256 */
 368         m_comb = (struct sadb_comb *)(buf + sizeof(*m_comb));
 369         m_comb->sadb_comb_auth = SADB_X_AALG_SHA2_256;
 370         m_comb->sadb_comb_encrypt = SADB_X_EALG_AESCBC;
 371         m_comb->sadb_comb_flags = 0;
 372         m_comb->sadb_comb_auth_minbits = 8;
 373         m_comb->sadb_comb_auth_maxbits = 96;
 374         m_comb->sadb_comb_encrypt_minbits = 128;
 375         m_comb->sadb_comb_encrypt_maxbits = 128;
 376         m_comb->sadb_comb_reserved = 0;
 377         m_comb->sadb_comb_soft_allocations = 0;
 378         m_comb->sadb_comb_hard_allocations = 0;
 379         m_comb->sadb_comb_soft_bytes = 0;
 380         m_comb->sadb_comb_hard_bytes = 0;
 381         m_comb->sadb_comb_soft_addtime = 0;
 382         m_comb->sadb_comb_hard_addtime = 0;
 383         m_comb->sadb_comb_soft_usetime = 0;
 384         m_comb->sadb_comb_hard_usetime = 0;
 385
 386         key_setsadbextbuf(m_buf, m_len,
 387                         (caddr_t)&m_prop, sizeof(struct sadb_prop),
 388                         buf, sizeof(*m_comb) * 3);
 389         m_len += len;
 390 #else
 391         key_setsadbextbuf(m_buf, m_len,
 392                         (caddr_t)&m_prop, sizeof(struct sadb_prop),
 393                         buf, sizeof(*m_comb) * 2);
 394         m_len += len;
 395 #endif
 396         return;
 397 }
 398
 399 void
 400 key_setsadbid(ext, str)
 401         u_int ext;
 402         caddr_t str;
 403 {
 404         struct sadb_ident m_id;
 405         u_int idlen = strlen(str), len;
 406
 407         len = sizeof(m_id) + PFKEY_ALIGN8(idlen);
 408         m_id.sadb_ident_len = PFKEY_UNIT64(len);
 409         m_id.sadb_ident_exttype = ext;
 410         m_id.sadb_ident_type = SADB_IDENTTYPE_USERFQDN;
 411         m_id.sadb_ident_reserved = 0;
 412         m_id.sadb_ident_id = getpid();
 413
 414         key_setsadbextbuf(m_buf, m_len,
 415                         (caddr_t)&m_id, sizeof(struct sadb_ident),
 416                         str, idlen);
 417         m_len += len;
 418
 419         return;
 420 }
 421
 422 void
 423 key_setsadblft(ext, time)
 424         u_int ext, time;
 425 {
 426         struct sadb_lifetime m_lft;
 427
 428         m_lft.sadb_lifetime_len = PFKEY_UNIT64(sizeof(m_lft));
 429         m_lft.sadb_lifetime_exttype = ext;
 430         m_lft.sadb_lifetime_allocations = 0x2;
 431         m_lft.sadb_lifetime_bytes = 0x1000;
 432         m_lft.sadb_lifetime_addtime = time;
 433         m_lft.sadb_lifetime_usetime = 0x0020;
 434
 435         memcpy(m_buf + m_len, &m_lft, sizeof(struct sadb_lifetime));
 436         m_len += sizeof(struct sadb_lifetime);
 437
 438         return;
 439 }
 440
 441 void
 442 key_setspirange()
 443 {
 444         struct sadb_spirange m_spi;
 445
 446         m_spi.sadb_spirange_len = PFKEY_UNIT64(sizeof(m_spi));
 447         m_spi.sadb_spirange_exttype = SADB_EXT_SPIRANGE;
 448         m_spi.sadb_spirange_min = 0x00001000;
 449         m_spi.sadb_spirange_max = 0x00002000;
 450         m_spi.sadb_spirange_reserved = 0;
 451
 452         memcpy(m_buf + m_len, &m_spi, sizeof(struct sadb_spirange));
 453         m_len += sizeof(struct sadb_spirange);
 454
 455         return;
 456 }
 457
 458 void
 459 key_setsadbkey(ext, str)
 460         u_int ext;
 461         caddr_t str;
 462 {
 463         struct sadb_key m_key;
 464         u_int keylen = strlen(str);
 465         u_int len;
 466
 467         len = sizeof(struct sadb_key) + PFKEY_ALIGN8(keylen);
 468         m_key.sadb_key_len = PFKEY_UNIT64(len);
 469         m_key.sadb_key_exttype = ext;
 470         m_key.sadb_key_bits = keylen * 8;
 471         m_key.sadb_key_reserved = 0;
 472
 473         key_setsadbextbuf(m_buf, m_len,
 474                         (caddr_t)&m_key, sizeof(struct sadb_key),
 475                         str, keylen);
 476         m_len += len;
 477
 478         return;
 479 }
 480
 481 void
 482 key_setsadbsa()
 483 {
 484         struct sadb_sa m_sa;
 485
 486         m_sa.sadb_sa_len = PFKEY_UNIT64(sizeof(struct sadb_sa));
 487         m_sa.sadb_sa_exttype = SADB_EXT_SA;
 488         m_sa.sadb_sa_spi = htonl(0x12345678);
 489         m_sa.sadb_sa_replay = 4;
 490         m_sa.sadb_sa_state = 0;
 491         m_sa.sadb_sa_auth = SADB_AALG_MD5HMAC;
 492         m_sa.sadb_sa_encrypt = SADB_EALG_DESCBC;
 493         m_sa.sadb_sa_flags = 0;
 494
 495         memcpy(m_buf + m_len, &m_sa, sizeof(struct sadb_sa));
 496         m_len += sizeof(struct sadb_sa);
 497
 498         return;
 499 }
 500
 501 void
 502 key_setsadbaddr(ext, af, str)
 503         u_int ext, af;
 504         caddr_t str;
 505 {
 506         struct sadb_address m_addr;
 507         u_int len;
 508         struct addrinfo hints, *res;
 509         const char *serv;
 510         int plen;
 511
 512         switch (af) {
 513         case AF_INET:
 514                 plen = sizeof(struct in_addr) << 3;
 515                 break;
 516         case AF_INET6:
 517                 plen = sizeof(struct in6_addr) << 3;
 518                 break;
 519         default:
 520                 /* XXX bark */
 521                 exit(1);
 522         }
 523
 524         /* make sockaddr buffer */
 525         memset(&hints, 0, sizeof(hints));
 526         hints.ai_family = af;
 527         hints.ai_socktype = SOCK_DGRAM; /*dummy*/
 528         hints.ai_flags = AI_NUMERICHOST;
 529         serv = (ext == SADB_EXT_ADDRESS_PROXY ? "0" : "4660");  /*0x1234*/
 530         if (getaddrinfo(str, serv, &hints, &res) != 0 || res->ai_next) {
 531                 /* XXX bark */
 532                 exit(1);
 533         }
 534
 535         len = sizeof(struct sadb_address) + PFKEY_ALIGN8(res->ai_addrlen);
 536         m_addr.sadb_address_len = PFKEY_UNIT64(len);
 537         m_addr.sadb_address_exttype = ext;
 538         m_addr.sadb_address_proto =
 539                 (ext == SADB_EXT_ADDRESS_PROXY ? 0 : IPPROTO_TCP);
 540         m_addr.sadb_address_prefixlen = plen;
 541         m_addr.sadb_address_reserved = 0;
 542
 543         key_setsadbextbuf(m_buf, m_len,
 544                         (caddr_t)&m_addr, sizeof(struct sadb_address),
 545                         (caddr_t)res->ai_addr, res->ai_addrlen);
 546         m_len += len;
 547
 548         freeaddrinfo(res);
 549
 550         return;
 551 }
 552
 553 void
 554 key_setsadbextbuf(dst, off, ebuf, elen, vbuf, vlen)
 555         caddr_t dst, ebuf, vbuf;
 556         int off, elen, vlen;
 557 {
 558         memset(dst + off, 0, elen + vlen);
 559         memcpy(dst + off, (caddr_t)ebuf, elen);
 560         memcpy(dst + off + elen, vbuf, vlen);
 561
 562         return;
 563 }
 564