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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_NULL
61 #define SADB_X_AALG_NULL        SADB_AALG_NULL
62 #endif
63
64 #ifndef SADB_X_EALG_RC5CBC
65 #ifdef SADB_EALG_RC5CBC
66 #define SADB_X_EALG_RC5CBC      SADB_EALG_RC5CBC
67 #endif
68 #endif
69
70 #define GETMSGSTR(str, num) \
71 do { \
72         if (sizeof((str)[0]) == 0 \
73          || num >= sizeof(str)/sizeof((str)[0])) \
74                 printf("%u ", (num)); \
75         else if (strlen((str)[(num)]) == 0) \
76                 printf("%u ", (num)); \
77         else \
78                 printf("%s ", (str)[(num)]); \
79 } while (0)
80
81 #define GETMSGV2S(v2s, num) \
82 do { \
83         struct val2str *p;  \
84         for (p = (v2s); p && p->str; p++) { \
85                 if (p->val == (num)) \
86                         break; \
87         } \
88         if (p && p->str) \
89                 printf("%s ", p->str); \
90         else \
91                 printf("%u ", (num)); \
92 } while (0)
93
94 static char *str_ipaddr(struct sockaddr *);
95 static char *str_prefport(u_int, u_int, u_int, u_int);
96 static void str_upperspec(u_int, u_int, u_int);
97 static char *str_time(time_t);
98 static void str_lifetime_byte(struct sadb_lifetime *, char *);
99
100 struct val2str {
101         int val;
102         const char *str;
103 };
104
105 /*
106  * Must to be re-written about following strings.
107  */
108 static char *str_satype[] = {
109         "unspec",
110         "unknown",
111         "ah",
112         "esp",
113         "unknown",
114         "rsvp",
115         "ospfv2",
116         "ripv2",
117         "mip",
118         "ipcomp",
119         "policy",
120         "tcp"
121 };
122
123 static char *str_mode[] = {
124         "any",
125         "transport",
126         "tunnel",
127 };
128
129 static char *str_state[] = {
130         "larval",
131         "mature",
132         "dying",
133         "dead",
134 };
135
136 static struct val2str str_alg_auth[] = {
137         { SADB_AALG_NONE, "none", },
138         { SADB_AALG_SHA1HMAC, "hmac-sha1", },
139         { SADB_X_AALG_NULL, "null", },
140         { SADB_X_AALG_TCP_MD5, "tcp-md5", },
141 #ifdef SADB_X_AALG_SHA2_256
142         { SADB_X_AALG_SHA2_256, "hmac-sha2-256", },
143 #endif
144 #ifdef SADB_X_AALG_SHA2_384
145         { SADB_X_AALG_SHA2_384, "hmac-sha2-384", },
146 #endif
147 #ifdef SADB_X_AALG_SHA2_512
148         { SADB_X_AALG_SHA2_512, "hmac-sha2-512", },
149 #endif
150 #ifdef SADB_X_AALG_AES_XCBC_MAC
151         { SADB_X_AALG_AES_XCBC_MAC, "aes-xcbc-mac", },
152 #endif
153 #ifdef SADB_X_AALG_CHACHA20POLY1305
154         { SADB_X_AALG_CHACHA20POLY1305, "chacha20-poly1305", },
155 #endif
156         { -1, NULL, },
157 };
158
159 static struct val2str str_alg_enc[] = {
160         { SADB_EALG_NONE, "none", },
161         { SADB_EALG_NULL, "null", },
162 #ifdef SADB_X_EALG_RC5CBC
163         { SADB_X_EALG_RC5CBC, "rc5-cbc", },
164 #endif
165 #ifdef SADB_X_EALG_AESCBC
166         { SADB_X_EALG_AESCBC, "aes-cbc", },
167 #endif
168 #ifdef SADB_X_EALG_TWOFISHCBC
169         { SADB_X_EALG_TWOFISHCBC, "twofish-cbc", },
170 #endif
171 #ifdef SADB_X_EALG_AESCTR
172         { SADB_X_EALG_AESCTR, "aes-ctr", },
173 #endif
174 #ifdef SADB_X_EALG_AESGCM16
175         { SADB_X_EALG_AESGCM16, "aes-gcm-16", },
176 #endif
177 #ifdef SADB_X_EALG_CHACHA20POLY1305
178         { SADB_X_EALG_CHACHA20POLY1305, "chacha20-poly1305", },
179 #endif
180         { -1, NULL, },
181 };
182
183 static struct val2str str_alg_comp[] = {
184         { SADB_X_CALG_NONE, "none", },
185         { SADB_X_CALG_OUI, "oui", },
186         { SADB_X_CALG_DEFLATE, "deflate", },
187         { SADB_X_CALG_LZS, "lzs", },
188         { -1, NULL, },
189 };
190
191 static struct val2str str_sp_scope[] = {
192         { IPSEC_POLICYSCOPE_GLOBAL, "global" },
193         { IPSEC_POLICYSCOPE_IFNET, "ifnet" },
194         { IPSEC_POLICYSCOPE_PCB, "pcb"},
195         { -1, NULL },
196 };
197
198 /*
199  * dump SADB_MSG formatted.  For debugging, you should use kdebug_sadb().
200  */
201 void
202 pfkey_sadump(m)
203         struct sadb_msg *m;
204 {
205         caddr_t mhp[SADB_EXT_MAX + 1];
206         struct sadb_sa *m_sa;
207         struct sadb_x_sa2 *m_sa2;
208         struct sadb_lifetime *m_lftc, *m_lfth, *m_lfts;
209         struct sadb_address *m_saddr, *m_daddr, *m_paddr;
210         struct sadb_key *m_auth, *m_enc;
211         struct sadb_ident *m_sid, *m_did;
212         struct sadb_sens *m_sens;
213         struct sadb_x_sa_replay *m_sa_replay;
214         struct sadb_x_nat_t_type *natt_type;
215         struct sadb_x_nat_t_port *natt_sport, *natt_dport;
216         struct sadb_address *natt_oai, *natt_oar;
217
218         /* check pfkey message. */
219         if (pfkey_align(m, mhp)) {
220                 printf("%s\n", ipsec_strerror());
221                 return;
222         }
223         if (pfkey_check(mhp)) {
224                 printf("%s\n", ipsec_strerror());
225                 return;
226         }
227
228         m_sa = (struct sadb_sa *)mhp[SADB_EXT_SA];
229         m_sa2 = (struct sadb_x_sa2 *)mhp[SADB_X_EXT_SA2];
230         m_lftc = (struct sadb_lifetime *)mhp[SADB_EXT_LIFETIME_CURRENT];
231         m_lfth = (struct sadb_lifetime *)mhp[SADB_EXT_LIFETIME_HARD];
232         m_lfts = (struct sadb_lifetime *)mhp[SADB_EXT_LIFETIME_SOFT];
233         m_saddr = (struct sadb_address *)mhp[SADB_EXT_ADDRESS_SRC];
234         m_daddr = (struct sadb_address *)mhp[SADB_EXT_ADDRESS_DST];
235         m_paddr = (struct sadb_address *)mhp[SADB_EXT_ADDRESS_PROXY];
236         m_auth = (struct sadb_key *)mhp[SADB_EXT_KEY_AUTH];
237         m_enc = (struct sadb_key *)mhp[SADB_EXT_KEY_ENCRYPT];
238         m_sid = (struct sadb_ident *)mhp[SADB_EXT_IDENTITY_SRC];
239         m_did = (struct sadb_ident *)mhp[SADB_EXT_IDENTITY_DST];
240         m_sens = (struct sadb_sens *)mhp[SADB_EXT_SENSITIVITY];
241         m_sa_replay = (struct sadb_x_sa_replay *)mhp[SADB_X_EXT_SA_REPLAY];
242         natt_type = (struct sadb_x_nat_t_type *)mhp[SADB_X_EXT_NAT_T_TYPE];
243         natt_sport = (struct sadb_x_nat_t_port *)mhp[SADB_X_EXT_NAT_T_SPORT];
244         natt_dport = (struct sadb_x_nat_t_port *)mhp[SADB_X_EXT_NAT_T_DPORT];
245         natt_oai = (struct sadb_address *)mhp[SADB_X_EXT_NAT_T_OAI];
246         natt_oar = (struct sadb_address *)mhp[SADB_X_EXT_NAT_T_OAR];
247
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         if (natt_type != NULL && natt_sport != NULL)
256                 printf("[%u]", ntohs(natt_sport->sadb_x_nat_t_port_port));
257
258         /* destination address */
259         if (m_daddr == NULL) {
260                 printf("\nno ADDRESS_DST extension.\n");
261                 return;
262         }
263         printf(" %s", str_ipaddr((struct sockaddr *)(m_daddr + 1)));
264         if (natt_type != NULL && natt_dport != NULL)
265                 printf("[%u]", ntohs(natt_dport->sadb_x_nat_t_port_port));
266
267         /* SA type */
268         if (m_sa == NULL) {
269                 printf("\nno SA extension.\n");
270                 return;
271         }
272         if (m_sa2 == NULL) {
273                 printf("\nno SA2 extension.\n");
274                 return;
275         }
276         printf("\n\t");
277
278         if (m->sadb_msg_satype == SADB_SATYPE_ESP && natt_type != NULL)
279                 printf("esp-udp ");
280         else
281                 GETMSGSTR(str_satype, m->sadb_msg_satype);
282
283         printf("mode=");
284         GETMSGSTR(str_mode, m_sa2->sadb_x_sa2_mode);
285
286         printf("spi=%u(0x%08x) reqid=%u(0x%08x)\n",
287                 (u_int32_t)ntohl(m_sa->sadb_sa_spi),
288                 (u_int32_t)ntohl(m_sa->sadb_sa_spi),
289                 (u_int32_t)m_sa2->sadb_x_sa2_reqid,
290                 (u_int32_t)m_sa2->sadb_x_sa2_reqid);
291
292         /* other NAT-T information */
293         if (natt_type != NULL && (natt_oai != NULL || natt_oar != NULL)) {
294                 printf("\tNAT:");
295                 if (natt_oai != NULL)
296                         printf(" OAI=%s",
297                             str_ipaddr((struct sockaddr *)(natt_oai + 1)));
298                 if (natt_oar != NULL)
299                         printf(" OAR=%s",
300                             str_ipaddr((struct sockaddr *)(natt_oar + 1)));
301                 printf("\n");
302         }
303
304         /* encryption key */
305         if (m->sadb_msg_satype == SADB_X_SATYPE_IPCOMP) {
306                 printf("\tC: ");
307                 GETMSGV2S(str_alg_comp, m_sa->sadb_sa_encrypt);
308         } else if (m->sadb_msg_satype == SADB_SATYPE_ESP) {
309                 if (m_enc != NULL) {
310                         printf("\tE: ");
311                         GETMSGV2S(str_alg_enc, m_sa->sadb_sa_encrypt);
312                         ipsec_hexdump((caddr_t)m_enc + sizeof(*m_enc),
313                                       m_enc->sadb_key_bits / 8);
314                         printf("\n");
315                 }
316         }
317
318         /* authentication key */
319         if (m_auth != NULL) {
320                 printf("\tA: ");
321                 GETMSGV2S(str_alg_auth, m_sa->sadb_sa_auth);
322                 ipsec_hexdump((caddr_t)m_auth + sizeof(*m_auth),
323                               m_auth->sadb_key_bits / 8);
324                 printf("\n");
325         }
326
327         /* replay windoe size & flags */
328         printf("\tseq=0x%08x replay=%u flags=0x%08x ",
329                 m_sa2->sadb_x_sa2_sequence,
330                 m_sa_replay ? (m_sa_replay->sadb_x_sa_replay_replay >> 3) :
331                         m_sa->sadb_sa_replay,
332                 m_sa->sadb_sa_flags);
333
334         /* state */
335         printf("state=");
336         GETMSGSTR(str_state, m_sa->sadb_sa_state);
337         printf("\n");
338
339         /* lifetime */
340         if (m_lftc != NULL) {
341                 time_t tmp_time = time(0);
342
343                 printf("\tcreated: %s",
344                         str_time(m_lftc->sadb_lifetime_addtime));
345                 printf("\tcurrent: %s\n", str_time(tmp_time));
346                 printf("\tdiff: %lu(s)",
347                         (u_long)(m_lftc->sadb_lifetime_addtime == 0 ?
348                         0 : (tmp_time - m_lftc->sadb_lifetime_addtime)));
349
350                 printf("\thard: %lu(s)",
351                         (u_long)(m_lfth == NULL ?
352                         0 : m_lfth->sadb_lifetime_addtime));
353                 printf("\tsoft: %lu(s)\n",
354                         (u_long)(m_lfts == NULL ?
355                         0 : m_lfts->sadb_lifetime_addtime));
356
357                 printf("\tlast: %s",
358                         str_time(m_lftc->sadb_lifetime_usetime));
359                 printf("\thard: %lu(s)",
360                         (u_long)(m_lfth == NULL ?
361                         0 : m_lfth->sadb_lifetime_usetime));
362                 printf("\tsoft: %lu(s)\n",
363                         (u_long)(m_lfts == NULL ?
364                         0 : m_lfts->sadb_lifetime_usetime));
365
366                 str_lifetime_byte(m_lftc, "current");
367                 str_lifetime_byte(m_lfth, "hard");
368                 str_lifetime_byte(m_lfts, "soft");
369                 printf("\n");
370
371                 printf("\tallocated: %lu",
372                         (unsigned long)m_lftc->sadb_lifetime_allocations);
373                 printf("\thard: %lu",
374                         (u_long)(m_lfth == NULL ?
375                         0 : m_lfth->sadb_lifetime_allocations));
376                 printf("\tsoft: %lu\n",
377                         (u_long)(m_lfts == NULL ?
378                         0 : m_lfts->sadb_lifetime_allocations));
379         }
380
381         printf("\tsadb_seq=%lu pid=%lu ",
382                 (u_long)m->sadb_msg_seq,
383                 (u_long)m->sadb_msg_pid);
384
385         /* XXX DEBUG */
386         printf("refcnt=%u\n", m->sadb_msg_reserved);
387
388         return;
389 }
390
391 void
392 pfkey_spdump(struct sadb_msg *m)
393 {
394         char pbuf[NI_MAXSERV];
395         caddr_t mhp[SADB_EXT_MAX + 1];
396         struct sadb_address *m_saddr, *m_daddr;
397         struct sadb_x_policy *m_xpl;
398         struct sadb_lifetime *m_lftc = NULL, *m_lfth = NULL;
399         struct sockaddr *sa;
400         u_int16_t sport = 0, dport = 0;
401
402         /* check pfkey message. */
403         if (pfkey_align(m, mhp)) {
404                 printf("%s\n", ipsec_strerror());
405                 return;
406         }
407         if (pfkey_check(mhp)) {
408                 printf("%s\n", ipsec_strerror());
409                 return;
410         }
411
412         m_saddr = (struct sadb_address *)mhp[SADB_EXT_ADDRESS_SRC];
413         m_daddr = (struct sadb_address *)mhp[SADB_EXT_ADDRESS_DST];
414         m_xpl = (struct sadb_x_policy *)mhp[SADB_X_EXT_POLICY];
415         m_lftc = (struct sadb_lifetime *)mhp[SADB_EXT_LIFETIME_CURRENT];
416         m_lfth = (struct sadb_lifetime *)mhp[SADB_EXT_LIFETIME_HARD];
417
418         if (m_saddr && m_daddr) {
419                 /* source address */
420                 sa = (struct sockaddr *)(m_saddr + 1);
421                 switch (sa->sa_family) {
422                 case AF_INET:
423                 case AF_INET6:
424                         if (getnameinfo(sa, sa->sa_len, NULL, 0,
425                             pbuf, sizeof(pbuf), NI_NUMERICSERV) != 0)
426                                 sport = 0;      /*XXX*/
427                         else
428                                 sport = atoi(pbuf);
429                         printf("%s%s ", str_ipaddr(sa),
430                                 str_prefport(sa->sa_family,
431                                     m_saddr->sadb_address_prefixlen, sport,
432                                     m_saddr->sadb_address_proto));
433                         break;
434                 default:
435                         printf("unknown-af ");
436                         break;
437                 }
438
439                 /* destination address */
440                 sa = (struct sockaddr *)(m_daddr + 1);
441                 switch (sa->sa_family) {
442                 case AF_INET:
443                 case AF_INET6:
444                         if (getnameinfo(sa, sa->sa_len, NULL, 0,
445                             pbuf, sizeof(pbuf), NI_NUMERICSERV) != 0)
446                                 dport = 0;      /*XXX*/
447                         else
448                                 dport = atoi(pbuf);
449                         printf("%s%s ", str_ipaddr(sa),
450                                 str_prefport(sa->sa_family,
451                                     m_daddr->sadb_address_prefixlen, dport,
452                                     m_saddr->sadb_address_proto));
453                         break;
454                 default:
455                         printf("unknown-af ");
456                         break;
457                 }
458
459                 /* upper layer protocol */
460                 if (m_saddr->sadb_address_proto !=
461                     m_daddr->sadb_address_proto) {
462                         printf("upper layer protocol mismatched.\n");
463                         return;
464                 }
465                 str_upperspec(m_saddr->sadb_address_proto, sport, dport);
466         }
467         else
468                 printf("(no selector, probably per-socket policy) ");
469
470         /* policy */
471     {
472         char *d_xpl;
473
474         if (m_xpl == NULL) {
475                 printf("no X_POLICY extension.\n");
476                 return;
477         }
478         d_xpl = ipsec_dump_policy((char *)m_xpl, "\n\t");
479
480         /* dump SPD */
481         printf("\n\t%s\n", d_xpl);
482         free(d_xpl);
483     }
484
485         /* lifetime */
486         if (m_lftc) {
487                 printf("\tcreated: %s  ",
488                         str_time(m_lftc->sadb_lifetime_addtime));
489                 printf("lastused: %s\n",
490                         str_time(m_lftc->sadb_lifetime_usetime));
491         }
492         if (m_lfth) {
493                 printf("\tlifetime: %lu(s) ",
494                         (u_long)m_lfth->sadb_lifetime_addtime);
495                 printf("validtime: %lu(s)\n",
496                         (u_long)m_lfth->sadb_lifetime_usetime);
497         }
498
499
500         printf("\tspid=%ld seq=%ld pid=%ld scope=",
501                 (u_long)m_xpl->sadb_x_policy_id,
502                 (u_long)m->sadb_msg_seq,
503                 (u_long)m->sadb_msg_pid);
504         GETMSGV2S(str_sp_scope, m_xpl->sadb_x_policy_scope);
505         if (m_xpl->sadb_x_policy_scope == IPSEC_POLICYSCOPE_IFNET &&
506             if_indextoname(m_xpl->sadb_x_policy_ifindex, pbuf) != NULL)
507                 printf("ifname=%s", pbuf);
508         printf("\n");
509
510         /* XXX TEST */
511         printf("\trefcnt=%u\n", m->sadb_msg_reserved);
512
513         return;
514 }
515
516 /*
517  * set "ipaddress" to buffer.
518  */
519 static char *
520 str_ipaddr(sa)
521         struct sockaddr *sa;
522 {
523         static char buf[NI_MAXHOST];
524         const int niflag = NI_NUMERICHOST;
525
526         if (sa == NULL)
527                 return "";
528
529         if (getnameinfo(sa, sa->sa_len, buf, sizeof(buf), NULL, 0, niflag) == 0)
530                 return buf;
531         return NULL;
532 }
533
534 /*
535  * set "/prefix[port number]" to buffer.
536  */
537 static char *
538 str_prefport(family, pref, port, ulp)
539         u_int family, pref, port, ulp;
540 {
541         static char buf[128];
542         char prefbuf[128];
543         char portbuf[128];
544         int plen;
545
546         switch (family) {
547         case AF_INET:
548                 plen = sizeof(struct in_addr) << 3;
549                 break;
550         case AF_INET6:
551                 plen = sizeof(struct in6_addr) << 3;
552                 break;
553         default:
554                 return "?";
555         }
556
557         if (pref == plen)
558                 prefbuf[0] = '\0';
559         else
560                 snprintf(prefbuf, sizeof(prefbuf), "/%u", pref);
561
562         if (ulp == IPPROTO_ICMPV6)
563                 memset(portbuf, 0, sizeof(portbuf));
564         else {
565                 if (port == IPSEC_PORT_ANY)
566                         snprintf(portbuf, sizeof(portbuf), "[%s]", "any");
567                 else
568                         snprintf(portbuf, sizeof(portbuf), "[%u]", port);
569         }
570
571         snprintf(buf, sizeof(buf), "%s%s", prefbuf, portbuf);
572
573         return buf;
574 }
575
576 static void
577 str_upperspec(ulp, p1, p2)
578         u_int ulp, p1, p2;
579 {
580         if (ulp == IPSEC_ULPROTO_ANY)
581                 printf("any");
582         else if (ulp == IPPROTO_ICMPV6) {
583                 printf("icmp6");
584                 if (!(p1 == IPSEC_PORT_ANY && p2 == IPSEC_PORT_ANY))
585                         printf(" %u,%u", p1, p2);
586         } else {
587                 struct protoent *ent;
588
589                 switch (ulp) {
590                 case IPPROTO_IPV4:
591                         printf("ip4");
592                         break;
593                 default:
594                         ent = getprotobynumber(ulp);
595                         if (ent)
596                                 printf("%s", ent->p_name);
597                         else
598                                 printf("%u", ulp);
599
600                         endprotoent();
601                         break;
602                 }
603         }
604 }
605
606 /*
607  * set "Mon Day Time Year" to buffer
608  */
609 static char *
610 str_time(t)
611         time_t t;
612 {
613         static char buf[128];
614
615         if (t == 0) {
616                 int i = 0;
617                 for (;i < 20;) buf[i++] = ' ';
618         } else {
619                 char *t0;
620                 t0 = ctime(&t);
621                 memcpy(buf, t0 + 4, 20);
622         }
623
624         buf[20] = '\0';
625
626         return(buf);
627 }
628
629 static void
630 str_lifetime_byte(x, str)
631         struct sadb_lifetime *x;
632         char *str;
633 {
634         double y;
635         char *unit;
636         int w;
637
638         if (x == NULL) {
639                 printf("\t%s: 0(bytes)", str);
640                 return;
641         }
642
643 #if 0
644         if ((x->sadb_lifetime_bytes) / 1024 / 1024) {
645                 y = (x->sadb_lifetime_bytes) * 1.0 / 1024 / 1024;
646                 unit = "M";
647                 w = 1;
648         } else if ((x->sadb_lifetime_bytes) / 1024) {
649                 y = (x->sadb_lifetime_bytes) * 1.0 / 1024;
650                 unit = "K";
651                 w = 1;
652         } else {
653                 y = (x->sadb_lifetime_bytes) * 1.0;
654                 unit = "";
655                 w = 0;
656         }
657 #else
658         y = (x->sadb_lifetime_bytes) * 1.0;
659         unit = "";
660         w = 0;
661 #endif
662         printf("\t%s: %.*f(%sbytes)", str, w, y, unit);
663 }