lib/libipsec/pfkey_dump.c

   1 /*      $KAME: pfkey_dump.c,v 1.45 2003/09/08 10:14:56 itojun Exp $     */
   2
   3 /*-
   4  * SPDX-License-Identifier: BSD-3-Clause
   5  *
   6  * Copyright (C) 1995, 1996, 1997, 1998, and 1999 WIDE Project.
   7  * All rights reserved.
   8  *
   9  * Redistribution and use in source and binary forms, with or without
  10  * modification, are permitted provided that the following conditions
  11  * are met:
  12  * 1. Redistributions of source code must retain the above copyright
  13  *    notice, this list of conditions and the following disclaimer.
  14  * 2. Redistributions in binary form must reproduce the above copyright
  15  *    notice, this list of conditions and the following disclaimer in the
  16  *    documentation and/or other materials provided with the distribution.
  17  * 3. Neither the name of the project nor the names of its contributors
  18  *    may be used to endorse or promote products derived from this software
  19  *    without specific prior written permission.
  20  *
  21  * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
  22  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  23  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  24  * ARE DISCLAIMED.  IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
  25  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  26  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  27  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  28  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  29  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  30  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  31  * SUCH DAMAGE.
  32  */
  33
  34 #include <sys/cdefs.h>
  35 __FBSDID("$FreeBSD$");
  36
  37 #include <sys/types.h>
  38 #include <sys/param.h>
  39 #include <sys/socket.h>
  40 #include <net/if.h>
  41 #include <net/pfkeyv2.h>
  42 #include <netipsec/ipsec.h>
  43 #include <netipsec/key_var.h>
  44 #include <netipsec/key_debug.h>
  45
  46 #include <netinet/in.h>
  47 #include <arpa/inet.h>
  48
  49 #include <stdlib.h>
  50 #include <unistd.h>
  51 #include <stdio.h>
  52 #include <string.h>
  53 #include <time.h>
  54 #include <netdb.h>
  55
  56 #include "ipsec_strerror.h"
  57 #include "libpfkey.h"
  58
  59 /* cope with old kame headers - ugly */
  60 #ifndef SADB_X_AALG_MD5
  61 #define SADB_X_AALG_MD5         SADB_AALG_MD5
  62 #endif
  63 #ifndef SADB_X_AALG_SHA
  64 #define SADB_X_AALG_SHA         SADB_AALG_SHA
  65 #endif
  66 #ifndef SADB_X_AALG_NULL
  67 #define SADB_X_AALG_NULL        SADB_AALG_NULL
  68 #endif
  69
  70 #ifndef SADB_X_EALG_BLOWFISHCBC
  71 #define SADB_X_EALG_BLOWFISHCBC SADB_EALG_BLOWFISHCBC
  72 #endif
  73 #ifndef SADB_X_EALG_CAST128CBC
  74 #define SADB_X_EALG_CAST128CBC  SADB_EALG_CAST128CBC
  75 #endif
  76 #ifndef SADB_X_EALG_RC5CBC
  77 #ifdef SADB_EALG_RC5CBC
  78 #define SADB_X_EALG_RC5CBC      SADB_EALG_RC5CBC
  79 #endif
  80 #endif
  81
  82 #define GETMSGSTR(str, num) \
  83 do { \
  84         if (sizeof((str)[0]) == 0 \
  85          || num >= sizeof(str)/sizeof((str)[0])) \
  86                 printf("%u ", (num)); \
  87         else if (strlen((str)[(num)]) == 0) \
  88                 printf("%u ", (num)); \
  89         else \
  90                 printf("%s ", (str)[(num)]); \
  91 } while (0)
  92
  93 #define GETMSGV2S(v2s, num) \
  94 do { \
  95         struct val2str *p;  \
  96         for (p = (v2s); p && p->str; p++) { \
  97                 if (p->val == (num)) \
  98                         break; \
  99         } \
 100         if (p && p->str) \
 101                 printf("%s ", p->str); \
 102         else \
 103                 printf("%u ", (num)); \
 104 } while (0)
 105
 106 static char *str_ipaddr(struct sockaddr *);
 107 static char *str_prefport(u_int, u_int, u_int, u_int);
 108 static void str_upperspec(u_int, u_int, u_int);
 109 static char *str_time(time_t);
 110 static void str_lifetime_byte(struct sadb_lifetime *, char *);
 111
 112 struct val2str {
 113         int val;
 114         const char *str;
 115 };
 116
 117 /*
 118  * Must to be re-written about following strings.
 119  */
 120 static char *str_satype[] = {
 121         "unspec",
 122         "unknown",
 123         "ah",
 124         "esp",
 125         "unknown",
 126         "rsvp",
 127         "ospfv2",
 128         "ripv2",
 129         "mip",
 130         "ipcomp",
 131         "policy",
 132         "tcp"
 133 };
 134
 135 static char *str_mode[] = {
 136         "any",
 137         "transport",
 138         "tunnel",
 139 };
 140
 141 static char *str_state[] = {
 142         "larval",
 143         "mature",
 144         "dying",
 145         "dead",
 146 };
 147
 148 static struct val2str str_alg_auth[] = {
 149         { SADB_AALG_NONE, "none", },
 150         { SADB_AALG_MD5HMAC, "hmac-md5", },
 151         { SADB_AALG_SHA1HMAC, "hmac-sha1", },
 152         { SADB_X_AALG_MD5, "md5", },
 153         { SADB_X_AALG_SHA, "sha", },
 154         { SADB_X_AALG_NULL, "null", },
 155         { SADB_X_AALG_TCP_MD5, "tcp-md5", },
 156 #ifdef SADB_X_AALG_SHA2_256
 157         { SADB_X_AALG_SHA2_256, "hmac-sha2-256", },
 158 #endif
 159 #ifdef SADB_X_AALG_SHA2_384
 160         { SADB_X_AALG_SHA2_384, "hmac-sha2-384", },
 161 #endif
 162 #ifdef SADB_X_AALG_SHA2_512
 163         { SADB_X_AALG_SHA2_512, "hmac-sha2-512", },
 164 #endif
 165 #ifdef SADB_X_AALG_RIPEMD160HMAC
 166         { SADB_X_AALG_RIPEMD160HMAC, "hmac-ripemd160", },
 167 #endif
 168 #ifdef SADB_X_AALG_AES_XCBC_MAC
 169         { SADB_X_AALG_AES_XCBC_MAC, "aes-xcbc-mac", },
 170 #endif
 171         { -1, NULL, },
 172 };
 173
 174 static struct val2str str_alg_enc[] = {
 175         { SADB_EALG_NONE, "none", },
 176         { SADB_EALG_DESCBC, "des-cbc", },
 177         { SADB_EALG_3DESCBC, "3des-cbc", },
 178         { SADB_EALG_NULL, "null", },
 179 #ifdef SADB_X_EALG_RC5CBC
 180         { SADB_X_EALG_RC5CBC, "rc5-cbc", },
 181 #endif
 182         { SADB_X_EALG_CAST128CBC, "cast128-cbc", },
 183         { SADB_X_EALG_BLOWFISHCBC, "blowfish-cbc", },
 184 #ifdef SADB_X_EALG_RIJNDAELCBC
 185         { SADB_X_EALG_RIJNDAELCBC, "rijndael-cbc", },
 186 #endif
 187 #ifdef SADB_X_EALG_TWOFISHCBC
 188         { SADB_X_EALG_TWOFISHCBC, "twofish-cbc", },
 189 #endif
 190 #ifdef SADB_X_EALG_AESCTR
 191         { SADB_X_EALG_AESCTR, "aes-ctr", },
 192 #endif
 193 #ifdef SADB_X_EALG_AESGCM16
 194         { SADB_X_EALG_AESGCM16, "aes-gcm-16", },
 195 #endif
 196 #ifdef SADB_X_EALG_CAMELLIACBC
 197         { SADB_X_EALG_CAMELLIACBC, "camellia-cbc", },
 198 #endif
 199         { -1, NULL, },
 200 };
 201
 202 static struct val2str str_alg_comp[] = {
 203         { SADB_X_CALG_NONE, "none", },
 204         { SADB_X_CALG_OUI, "oui", },
 205         { SADB_X_CALG_DEFLATE, "deflate", },
 206         { SADB_X_CALG_LZS, "lzs", },
 207         { -1, NULL, },
 208 };
 209
 210 static struct val2str str_sp_scope[] = {
 211         { IPSEC_POLICYSCOPE_GLOBAL, "global" },
 212         { IPSEC_POLICYSCOPE_IFNET, "ifnet" },
 213         { IPSEC_POLICYSCOPE_PCB, "pcb"},
 214         { -1, NULL },
 215 };
 216
 217 /*
 218  * dump SADB_MSG formated.  For debugging, you should use kdebug_sadb().
 219  */
 220 void
 221 pfkey_sadump(m)
 222         struct sadb_msg *m;
 223 {
 224         caddr_t mhp[SADB_EXT_MAX + 1];
 225         struct sadb_sa *m_sa;
 226         struct sadb_x_sa2 *m_sa2;
 227         struct sadb_lifetime *m_lftc, *m_lfth, *m_lfts;
 228         struct sadb_address *m_saddr, *m_daddr, *m_paddr;
 229         struct sadb_key *m_auth, *m_enc;
 230         struct sadb_ident *m_sid, *m_did;
 231         struct sadb_sens *m_sens;
 232         struct sadb_x_sa_replay *m_sa_replay;
 233         struct sadb_x_nat_t_type *natt_type;
 234         struct sadb_x_nat_t_port *natt_sport, *natt_dport;
 235         struct sadb_address *natt_oai, *natt_oar;
 236
 237         /* check pfkey message. */
 238         if (pfkey_align(m, mhp)) {
 239                 printf("%s\n", ipsec_strerror());
 240                 return;
 241         }
 242         if (pfkey_check(mhp)) {
 243                 printf("%s\n", ipsec_strerror());
 244                 return;
 245         }
 246
 247         m_sa = (struct sadb_sa *)mhp[SADB_EXT_SA];
 248         m_sa2 = (struct sadb_x_sa2 *)mhp[SADB_X_EXT_SA2];
 249         m_lftc = (struct sadb_lifetime *)mhp[SADB_EXT_LIFETIME_CURRENT];
 250         m_lfth = (struct sadb_lifetime *)mhp[SADB_EXT_LIFETIME_HARD];
 251         m_lfts = (struct sadb_lifetime *)mhp[SADB_EXT_LIFETIME_SOFT];
 252         m_saddr = (struct sadb_address *)mhp[SADB_EXT_ADDRESS_SRC];
 253         m_daddr = (struct sadb_address *)mhp[SADB_EXT_ADDRESS_DST];
 254         m_paddr = (struct sadb_address *)mhp[SADB_EXT_ADDRESS_PROXY];
 255         m_auth = (struct sadb_key *)mhp[SADB_EXT_KEY_AUTH];
 256         m_enc = (struct sadb_key *)mhp[SADB_EXT_KEY_ENCRYPT];
 257         m_sid = (struct sadb_ident *)mhp[SADB_EXT_IDENTITY_SRC];
 258         m_did = (struct sadb_ident *)mhp[SADB_EXT_IDENTITY_DST];
 259         m_sens = (struct sadb_sens *)mhp[SADB_EXT_SENSITIVITY];
 260         m_sa_replay = (struct sadb_x_sa_replay *)mhp[SADB_X_EXT_SA_REPLAY];
 261         natt_type = (struct sadb_x_nat_t_type *)mhp[SADB_X_EXT_NAT_T_TYPE];
 262         natt_sport = (struct sadb_x_nat_t_port *)mhp[SADB_X_EXT_NAT_T_SPORT];
 263         natt_dport = (struct sadb_x_nat_t_port *)mhp[SADB_X_EXT_NAT_T_DPORT];
 264         natt_oai = (struct sadb_address *)mhp[SADB_X_EXT_NAT_T_OAI];
 265         natt_oar = (struct sadb_address *)mhp[SADB_X_EXT_NAT_T_OAR];
 266
 267
 268         /* source address */
 269         if (m_saddr == NULL) {
 270                 printf("no ADDRESS_SRC extension.\n");
 271                 return;
 272         }
 273         printf("%s", str_ipaddr((struct sockaddr *)(m_saddr + 1)));
 274         if (natt_type != NULL && natt_sport != NULL)
 275                 printf("[%u]", ntohs(natt_sport->sadb_x_nat_t_port_port));
 276
 277         /* destination address */
 278         if (m_daddr == NULL) {
 279                 printf("\nno ADDRESS_DST extension.\n");
 280                 return;
 281         }
 282         printf(" %s", str_ipaddr((struct sockaddr *)(m_daddr + 1)));
 283         if (natt_type != NULL && natt_dport != NULL)
 284                 printf("[%u]", ntohs(natt_dport->sadb_x_nat_t_port_port));
 285
 286         /* SA type */
 287         if (m_sa == NULL) {
 288                 printf("\nno SA extension.\n");
 289                 return;
 290         }
 291         if (m_sa2 == NULL) {
 292                 printf("\nno SA2 extension.\n");
 293                 return;
 294         }
 295         printf("\n\t");
 296
 297         if (m->sadb_msg_satype == SADB_SATYPE_ESP && natt_type != NULL)
 298                 printf("esp-udp ");
 299         else
 300                 GETMSGSTR(str_satype, m->sadb_msg_satype);
 301
 302         printf("mode=");
 303         GETMSGSTR(str_mode, m_sa2->sadb_x_sa2_mode);
 304
 305         printf("spi=%u(0x%08x) reqid=%u(0x%08x)\n",
 306                 (u_int32_t)ntohl(m_sa->sadb_sa_spi),
 307                 (u_int32_t)ntohl(m_sa->sadb_sa_spi),
 308                 (u_int32_t)m_sa2->sadb_x_sa2_reqid,
 309                 (u_int32_t)m_sa2->sadb_x_sa2_reqid);
 310
 311         /* other NAT-T information */
 312         if (natt_type != NULL && (natt_oai != NULL || natt_oar != NULL)) {
 313                 printf("\tNAT:");
 314                 if (natt_oai != NULL)
 315                         printf(" OAI=%s",
 316                             str_ipaddr((struct sockaddr *)(natt_oai + 1)));
 317                 if (natt_oar != NULL)
 318                         printf(" OAR=%s",
 319                             str_ipaddr((struct sockaddr *)(natt_oar + 1)));
 320                 printf("\n");
 321         }
 322
 323         /* encryption key */
 324         if (m->sadb_msg_satype == SADB_X_SATYPE_IPCOMP) {
 325                 printf("\tC: ");
 326                 GETMSGV2S(str_alg_comp, m_sa->sadb_sa_encrypt);
 327         } else if (m->sadb_msg_satype == SADB_SATYPE_ESP) {
 328                 if (m_enc != NULL) {
 329                         printf("\tE: ");
 330                         GETMSGV2S(str_alg_enc, m_sa->sadb_sa_encrypt);
 331                         ipsec_hexdump((caddr_t)m_enc + sizeof(*m_enc),
 332                                       m_enc->sadb_key_bits / 8);
 333                         printf("\n");
 334                 }
 335         }
 336
 337         /* authentication key */
 338         if (m_auth != NULL) {
 339                 printf("\tA: ");
 340                 GETMSGV2S(str_alg_auth, m_sa->sadb_sa_auth);
 341                 ipsec_hexdump((caddr_t)m_auth + sizeof(*m_auth),
 342                               m_auth->sadb_key_bits / 8);
 343                 printf("\n");
 344         }
 345
 346         /* replay windoe size & flags */
 347         printf("\tseq=0x%08x replay=%u flags=0x%08x ",
 348                 m_sa2->sadb_x_sa2_sequence,
 349                 m_sa_replay ? (m_sa_replay->sadb_x_sa_replay_replay >> 3) :
 350                         m_sa->sadb_sa_replay,
 351                 m_sa->sadb_sa_flags);
 352
 353         /* state */
 354         printf("state=");
 355         GETMSGSTR(str_state, m_sa->sadb_sa_state);
 356         printf("\n");
 357
 358         /* lifetime */
 359         if (m_lftc != NULL) {
 360                 time_t tmp_time = time(0);
 361
 362                 printf("\tcreated: %s",
 363                         str_time(m_lftc->sadb_lifetime_addtime));
 364                 printf("\tcurrent: %s\n", str_time(tmp_time));
 365                 printf("\tdiff: %lu(s)",
 366                         (u_long)(m_lftc->sadb_lifetime_addtime == 0 ?
 367                         0 : (tmp_time - m_lftc->sadb_lifetime_addtime)));
 368
 369                 printf("\thard: %lu(s)",
 370                         (u_long)(m_lfth == NULL ?
 371                         0 : m_lfth->sadb_lifetime_addtime));
 372                 printf("\tsoft: %lu(s)\n",
 373                         (u_long)(m_lfts == NULL ?
 374                         0 : m_lfts->sadb_lifetime_addtime));
 375
 376                 printf("\tlast: %s",
 377                         str_time(m_lftc->sadb_lifetime_usetime));
 378                 printf("\thard: %lu(s)",
 379                         (u_long)(m_lfth == NULL ?
 380                         0 : m_lfth->sadb_lifetime_usetime));
 381                 printf("\tsoft: %lu(s)\n",
 382                         (u_long)(m_lfts == NULL ?
 383                         0 : m_lfts->sadb_lifetime_usetime));
 384
 385                 str_lifetime_byte(m_lftc, "current");
 386                 str_lifetime_byte(m_lfth, "hard");
 387                 str_lifetime_byte(m_lfts, "soft");
 388                 printf("\n");
 389
 390                 printf("\tallocated: %lu",
 391                         (unsigned long)m_lftc->sadb_lifetime_allocations);
 392                 printf("\thard: %lu",
 393                         (u_long)(m_lfth == NULL ?
 394                         0 : m_lfth->sadb_lifetime_allocations));
 395                 printf("\tsoft: %lu\n",
 396                         (u_long)(m_lfts == NULL ?
 397                         0 : m_lfts->sadb_lifetime_allocations));
 398         }
 399
 400         printf("\tsadb_seq=%lu pid=%lu ",
 401                 (u_long)m->sadb_msg_seq,
 402                 (u_long)m->sadb_msg_pid);
 403
 404         /* XXX DEBUG */
 405         printf("refcnt=%u\n", m->sadb_msg_reserved);
 406
 407         return;
 408 }
 409
 410 void
 411 pfkey_spdump(struct sadb_msg *m)
 412 {
 413         char pbuf[NI_MAXSERV];
 414         caddr_t mhp[SADB_EXT_MAX + 1];
 415         struct sadb_address *m_saddr, *m_daddr;
 416         struct sadb_x_policy *m_xpl;
 417         struct sadb_lifetime *m_lftc = NULL, *m_lfth = NULL;
 418         struct sockaddr *sa;
 419         u_int16_t sport = 0, dport = 0;
 420
 421         /* check pfkey message. */
 422         if (pfkey_align(m, mhp)) {
 423                 printf("%s\n", ipsec_strerror());
 424                 return;
 425         }
 426         if (pfkey_check(mhp)) {
 427                 printf("%s\n", ipsec_strerror());
 428                 return;
 429         }
 430
 431         m_saddr = (struct sadb_address *)mhp[SADB_EXT_ADDRESS_SRC];
 432         m_daddr = (struct sadb_address *)mhp[SADB_EXT_ADDRESS_DST];
 433         m_xpl = (struct sadb_x_policy *)mhp[SADB_X_EXT_POLICY];
 434         m_lftc = (struct sadb_lifetime *)mhp[SADB_EXT_LIFETIME_CURRENT];
 435         m_lfth = (struct sadb_lifetime *)mhp[SADB_EXT_LIFETIME_HARD];
 436
 437         if (m_saddr && m_daddr) {
 438                 /* source address */
 439                 sa = (struct sockaddr *)(m_saddr + 1);
 440                 switch (sa->sa_family) {
 441                 case AF_INET:
 442                 case AF_INET6:
 443                         if (getnameinfo(sa, sa->sa_len, NULL, 0,
 444                             pbuf, sizeof(pbuf), NI_NUMERICSERV) != 0)
 445                                 sport = 0;      /*XXX*/
 446                         else
 447                                 sport = atoi(pbuf);
 448                         printf("%s%s ", str_ipaddr(sa),
 449                                 str_prefport(sa->sa_family,
 450                                     m_saddr->sadb_address_prefixlen, sport,
 451                                     m_saddr->sadb_address_proto));
 452                         break;
 453                 default:
 454                         printf("unknown-af ");
 455                         break;
 456                 }
 457
 458                 /* destination address */
 459                 sa = (struct sockaddr *)(m_daddr + 1);
 460                 switch (sa->sa_family) {
 461                 case AF_INET:
 462                 case AF_INET6:
 463                         if (getnameinfo(sa, sa->sa_len, NULL, 0,
 464                             pbuf, sizeof(pbuf), NI_NUMERICSERV) != 0)
 465                                 dport = 0;      /*XXX*/
 466                         else
 467                                 dport = atoi(pbuf);
 468                         printf("%s%s ", str_ipaddr(sa),
 469                                 str_prefport(sa->sa_family,
 470                                     m_daddr->sadb_address_prefixlen, dport,
 471                                     m_saddr->sadb_address_proto));
 472                         break;
 473                 default:
 474                         printf("unknown-af ");
 475                         break;
 476                 }
 477
 478                 /* upper layer protocol */
 479                 if (m_saddr->sadb_address_proto !=
 480                     m_daddr->sadb_address_proto) {
 481                         printf("upper layer protocol mismatched.\n");
 482                         return;
 483                 }
 484                 str_upperspec(m_saddr->sadb_address_proto, sport, dport);
 485         }
 486         else
 487                 printf("(no selector, probably per-socket policy) ");
 488
 489         /* policy */
 490     {
 491         char *d_xpl;
 492
 493         if (m_xpl == NULL) {
 494                 printf("no X_POLICY extension.\n");
 495                 return;
 496         }
 497         d_xpl = ipsec_dump_policy((char *)m_xpl, "\n\t");
 498
 499         /* dump SPD */
 500         printf("\n\t%s\n", d_xpl);
 501         free(d_xpl);
 502     }
 503
 504         /* lifetime */
 505         if (m_lftc) {
 506                 printf("\tcreated: %s  ",
 507                         str_time(m_lftc->sadb_lifetime_addtime));
 508                 printf("lastused: %s\n",
 509                         str_time(m_lftc->sadb_lifetime_usetime));
 510         }
 511         if (m_lfth) {
 512                 printf("\tlifetime: %lu(s) ",
 513                         (u_long)m_lfth->sadb_lifetime_addtime);
 514                 printf("validtime: %lu(s)\n",
 515                         (u_long)m_lfth->sadb_lifetime_usetime);
 516         }
 517
 518
 519         printf("\tspid=%ld seq=%ld pid=%ld scope=",
 520                 (u_long)m_xpl->sadb_x_policy_id,
 521                 (u_long)m->sadb_msg_seq,
 522                 (u_long)m->sadb_msg_pid);
 523         GETMSGV2S(str_sp_scope, m_xpl->sadb_x_policy_scope);
 524         if (m_xpl->sadb_x_policy_scope == IPSEC_POLICYSCOPE_IFNET &&
 525             if_indextoname(m_xpl->sadb_x_policy_ifindex, pbuf) != NULL)
 526                 printf("ifname=%s", pbuf);
 527         printf("\n");
 528
 529         /* XXX TEST */
 530         printf("\trefcnt=%u\n", m->sadb_msg_reserved);
 531
 532         return;
 533 }
 534
 535 /*
 536  * set "ipaddress" to buffer.
 537  */
 538 static char *
 539 str_ipaddr(sa)
 540         struct sockaddr *sa;
 541 {
 542         static char buf[NI_MAXHOST];
 543         const int niflag = NI_NUMERICHOST;
 544
 545         if (sa == NULL)
 546                 return "";
 547
 548         if (getnameinfo(sa, sa->sa_len, buf, sizeof(buf), NULL, 0, niflag) == 0)
 549                 return buf;
 550         return NULL;
 551 }
 552
 553 /*
 554  * set "/prefix[port number]" to buffer.
 555  */
 556 static char *
 557 str_prefport(family, pref, port, ulp)
 558         u_int family, pref, port, ulp;
 559 {
 560         static char buf[128];
 561         char prefbuf[128];
 562         char portbuf[128];
 563         int plen;
 564
 565         switch (family) {
 566         case AF_INET:
 567                 plen = sizeof(struct in_addr) << 3;
 568                 break;
 569         case AF_INET6:
 570                 plen = sizeof(struct in6_addr) << 3;
 571                 break;
 572         default:
 573                 return "?";
 574         }
 575
 576         if (pref == plen)
 577                 prefbuf[0] = '\0';
 578         else
 579                 snprintf(prefbuf, sizeof(prefbuf), "/%u", pref);
 580
 581         if (ulp == IPPROTO_ICMPV6)
 582                 memset(portbuf, 0, sizeof(portbuf));
 583         else {
 584                 if (port == IPSEC_PORT_ANY)
 585                         snprintf(portbuf, sizeof(portbuf), "[%s]", "any");
 586                 else
 587                         snprintf(portbuf, sizeof(portbuf), "[%u]", port);
 588         }
 589
 590         snprintf(buf, sizeof(buf), "%s%s", prefbuf, portbuf);
 591
 592         return buf;
 593 }
 594
 595 static void
 596 str_upperspec(ulp, p1, p2)
 597         u_int ulp, p1, p2;
 598 {
 599         if (ulp == IPSEC_ULPROTO_ANY)
 600                 printf("any");
 601         else if (ulp == IPPROTO_ICMPV6) {
 602                 printf("icmp6");
 603                 if (!(p1 == IPSEC_PORT_ANY && p2 == IPSEC_PORT_ANY))
 604                         printf(" %u,%u", p1, p2);
 605         } else {
 606                 struct protoent *ent;
 607
 608                 switch (ulp) {
 609                 case IPPROTO_IPV4:
 610                         printf("ip4");
 611                         break;
 612                 default:
 613                         ent = getprotobynumber(ulp);
 614                         if (ent)
 615                                 printf("%s", ent->p_name);
 616                         else
 617                                 printf("%u", ulp);
 618
 619                         endprotoent();
 620                         break;
 621                 }
 622         }
 623 }
 624
 625 /*
 626  * set "Mon Day Time Year" to buffer
 627  */
 628 static char *
 629 str_time(t)
 630         time_t t;
 631 {
 632         static char buf[128];
 633
 634         if (t == 0) {
 635                 int i = 0;
 636                 for (;i < 20;) buf[i++] = ' ';
 637         } else {
 638                 char *t0;
 639                 t0 = ctime(&t);
 640                 memcpy(buf, t0 + 4, 20);
 641         }
 642
 643         buf[20] = '\0';
 644
 645         return(buf);
 646 }
 647
 648 static void
 649 str_lifetime_byte(x, str)
 650         struct sadb_lifetime *x;
 651         char *str;
 652 {
 653         double y;
 654         char *unit;
 655         int w;
 656
 657         if (x == NULL) {
 658                 printf("\t%s: 0(bytes)", str);
 659                 return;
 660         }
 661
 662 #if 0
 663         if ((x->sadb_lifetime_bytes) / 1024 / 1024) {
 664                 y = (x->sadb_lifetime_bytes) * 1.0 / 1024 / 1024;
 665                 unit = "M";
 666                 w = 1;
 667         } else if ((x->sadb_lifetime_bytes) / 1024) {
 668                 y = (x->sadb_lifetime_bytes) * 1.0 / 1024;
 669                 unit = "K";
 670                 w = 1;
 671         } else {
 672                 y = (x->sadb_lifetime_bytes) * 1.0;
 673                 unit = "";
 674                 w = 0;
 675         }
 676 #else
 677         y = (x->sadb_lifetime_bytes) * 1.0;
 678         unit = "";
 679         w = 0;
 680 #endif
 681         printf("\t%s: %.*f(%sbytes)", str, w, y, unit);
 682 }