lib/libipsec/pfkey_dump.c

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