Annotation of embedaddon/quagga/lib/keychain.c, revision 1.1.1.1

1.1       misho       1: /* key-chain for authentication.
                      2:    Copyright (C) 2000 Kunihiro Ishiguro
                      3: 
                      4: This file is part of GNU Zebra.
                      5: 
                      6: GNU Zebra is free software; you can redistribute it and/or modify
                      7: it under the terms of the GNU General Public License as published
                      8: by the Free Software Foundation; either version 2, or (at your
                      9: option) any later version.
                     10: 
                     11: GNU Zebra is distributed in the hope that it will be useful, but
                     12: WITHOUT ANY WARRANTY; without even the implied warranty of
                     13: MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
                     14: General Public License for more details.
                     15: 
                     16: You should have received a copy of the GNU General Public License
                     17: along with GNU Zebra; see the file COPYING.  If not, write to the
                     18: Free Software Foundation, Inc., 59 Temple Place - Suite 330,
                     19: Boston, MA 02111-1307, USA.  */
                     20: 
                     21: #include <zebra.h>
                     22: 
                     23: #include "command.h"
                     24: #include "memory.h"
                     25: #include "linklist.h"
                     26: #include "keychain.h"
                     27: 
                     28: /* Master list of key chain. */
                     29: struct list *keychain_list;
                     30: 
                     31: static struct keychain *
                     32: keychain_new (void)
                     33: {
                     34:   return XCALLOC (MTYPE_KEYCHAIN, sizeof (struct keychain));
                     35: }
                     36: 
                     37: static void
                     38: keychain_free (struct keychain *keychain)
                     39: {
                     40:   XFREE (MTYPE_KEYCHAIN, keychain);
                     41: }
                     42: 
                     43: static struct key *
                     44: key_new (void)
                     45: {
                     46:   return XCALLOC (MTYPE_KEY, sizeof (struct key));
                     47: }
                     48: 
                     49: static void
                     50: key_free (struct key *key)
                     51: {
                     52:   XFREE (MTYPE_KEY, key);
                     53: }
                     54: 
                     55: struct keychain *
                     56: keychain_lookup (const char *name)
                     57: {
                     58:   struct listnode *node;
                     59:   struct keychain *keychain;
                     60: 
                     61:   if (name == NULL)
                     62:     return NULL;
                     63: 
                     64:   for (ALL_LIST_ELEMENTS_RO (keychain_list, node, keychain))
                     65:     {
                     66:       if (strcmp (keychain->name, name) == 0)
                     67:        return keychain;
                     68:     }
                     69:   return NULL;
                     70: }
                     71: 
                     72: static int
                     73: key_cmp_func (void *arg1, void *arg2)
                     74: {
                     75:   const struct key *k1 = arg1;
                     76:   const struct key *k2 = arg2;
                     77:   
                     78:   if (k1->index > k2->index)
                     79:     return 1;
                     80:   if (k1->index < k2->index)
                     81:     return -1;
                     82:   return 0;
                     83: }
                     84: 
                     85: static void
                     86: key_delete_func (struct key *key)
                     87: {
                     88:   if (key->string)
                     89:     free (key->string);
                     90:   key_free (key);
                     91: }
                     92: 
                     93: static struct keychain *
                     94: keychain_get (const char *name)
                     95: {
                     96:   struct keychain *keychain;
                     97: 
                     98:   keychain = keychain_lookup (name);
                     99: 
                    100:   if (keychain)
                    101:     return keychain;
                    102: 
                    103:   keychain = keychain_new ();
                    104:   keychain->name = strdup (name);
                    105:   keychain->key = list_new ();
                    106:   keychain->key->cmp = (int (*)(void *, void *)) key_cmp_func;
                    107:   keychain->key->del = (void (*)(void *)) key_delete_func;
                    108:   listnode_add (keychain_list, keychain);
                    109: 
                    110:   return keychain;
                    111: }
                    112: 
                    113: static void
                    114: keychain_delete (struct keychain *keychain)
                    115: {
                    116:   if (keychain->name)
                    117:     free (keychain->name);
                    118: 
                    119:   list_delete (keychain->key);
                    120:   listnode_delete (keychain_list, keychain);
                    121:   keychain_free (keychain);
                    122: }
                    123: 
                    124: static struct key *
                    125: key_lookup (const struct keychain *keychain, u_int32_t index)
                    126: {
                    127:   struct listnode *node;
                    128:   struct key *key;
                    129: 
                    130:   for (ALL_LIST_ELEMENTS_RO (keychain->key, node, key))
                    131:     {
                    132:       if (key->index == index)
                    133:        return key;
                    134:     }
                    135:   return NULL;
                    136: }
                    137: 
                    138: struct key *
                    139: key_lookup_for_accept (const struct keychain *keychain, u_int32_t index)
                    140: {
                    141:   struct listnode *node;
                    142:   struct key *key;
                    143:   time_t now;
                    144: 
                    145:   now = time (NULL);
                    146: 
                    147:   for (ALL_LIST_ELEMENTS_RO (keychain->key, node, key))
                    148:     {
                    149:       if (key->index >= index)
                    150:        {
                    151:          if (key->accept.start == 0)
                    152:            return key;
                    153: 
                    154:          if (key->accept.start <= now)
                    155:            if (key->accept.end >= now || key->accept.end == -1)
                    156:              return key;
                    157:        }
                    158:     }
                    159:   return NULL;
                    160: }
                    161: 
                    162: struct key *
                    163: key_match_for_accept (const struct keychain *keychain, const char *auth_str)
                    164: {
                    165:   struct listnode *node;
                    166:   struct key *key;
                    167:   time_t now;
                    168: 
                    169:   now = time (NULL);
                    170: 
                    171:   for (ALL_LIST_ELEMENTS_RO (keychain->key, node, key))
                    172:     {
                    173:       if (key->accept.start == 0 ||
                    174:          (key->accept.start <= now &&
                    175:           (key->accept.end >= now || key->accept.end == -1)))
                    176:        if (strncmp (key->string, auth_str, 16) == 0)
                    177:          return key;
                    178:     }
                    179:   return NULL;
                    180: }
                    181: 
                    182: struct key *
                    183: key_lookup_for_send (const struct keychain *keychain)
                    184: {
                    185:   struct listnode *node;
                    186:   struct key *key;
                    187:   time_t now;
                    188: 
                    189:   now = time (NULL);
                    190: 
                    191:   for (ALL_LIST_ELEMENTS_RO (keychain->key, node, key))
                    192:     {
                    193:       if (key->send.start == 0)
                    194:        return key;
                    195: 
                    196:       if (key->send.start <= now)
                    197:        if (key->send.end >= now || key->send.end == -1)
                    198:          return key;
                    199:     }
                    200:   return NULL;
                    201: }
                    202: 
                    203: static struct key *
                    204: key_get (const struct keychain *keychain, u_int32_t index)
                    205: {
                    206:   struct key *key;
                    207: 
                    208:   key = key_lookup (keychain, index);
                    209: 
                    210:   if (key)
                    211:     return key;
                    212: 
                    213:   key = key_new ();
                    214:   key->index = index;
                    215:   listnode_add_sort (keychain->key, key);
                    216: 
                    217:   return key;
                    218: }
                    219: 
                    220: static void
                    221: key_delete (struct keychain *keychain, struct key *key)
                    222: {
                    223:   listnode_delete (keychain->key, key);
                    224: 
                    225:   if (key->string)
                    226:     free (key->string);
                    227:   key_free (key);
                    228: }
                    229: 
                    230: DEFUN (key_chain,
                    231:        key_chain_cmd,
                    232:        "key chain WORD",
                    233:        "Authentication key management\n"
                    234:        "Key-chain management\n"
                    235:        "Key-chain name\n")
                    236: {
                    237:   struct keychain *keychain;
                    238: 
                    239:   keychain = keychain_get (argv[0]);
                    240:   vty->index = keychain;
                    241:   vty->node = KEYCHAIN_NODE;
                    242: 
                    243:   return CMD_SUCCESS;
                    244: }
                    245: 
                    246: DEFUN (no_key_chain,
                    247:        no_key_chain_cmd,
                    248:        "no key chain WORD",
                    249:        NO_STR
                    250:        "Authentication key management\n"
                    251:        "Key-chain management\n"
                    252:        "Key-chain name\n")
                    253: {
                    254:   struct keychain *keychain;
                    255: 
                    256:   keychain = keychain_lookup (argv[0]);
                    257: 
                    258:   if (! keychain)
                    259:     {
                    260:       vty_out (vty, "Can't find keychain %s%s", argv[0], VTY_NEWLINE);
                    261:       return CMD_WARNING;
                    262:     }
                    263: 
                    264:   keychain_delete (keychain);
                    265: 
                    266:   return CMD_SUCCESS;
                    267: }
                    268: 
                    269: DEFUN (key,
                    270:        key_cmd,
                    271:        "key <0-2147483647>",
                    272:        "Configure a key\n"
                    273:        "Key identifier number\n")
                    274: {
                    275:   struct keychain *keychain;
                    276:   struct key *key;
                    277:   u_int32_t index;
                    278: 
                    279:   keychain = vty->index;
                    280: 
                    281:   VTY_GET_INTEGER ("key identifier", index, argv[0]);
                    282:   key = key_get (keychain, index);
                    283:   vty->index_sub = key;
                    284:   vty->node = KEYCHAIN_KEY_NODE;
                    285:   
                    286:   return CMD_SUCCESS;
                    287: }
                    288: 
                    289: DEFUN (no_key,
                    290:        no_key_cmd,
                    291:        "no key <0-2147483647>",
                    292:        NO_STR
                    293:        "Delete a key\n"
                    294:        "Key identifier number\n")
                    295: {
                    296:   struct keychain *keychain;
                    297:   struct key *key;
                    298:   u_int32_t index;
                    299:   
                    300:   keychain = vty->index;
                    301: 
                    302:   VTY_GET_INTEGER ("key identifier", index, argv[0]);
                    303:   key = key_lookup (keychain, index);
                    304:   if (! key)
                    305:     {
                    306:       vty_out (vty, "Can't find key %d%s", index, VTY_NEWLINE);
                    307:       return CMD_WARNING;
                    308:     }
                    309: 
                    310:   key_delete (keychain, key);
                    311: 
                    312:   vty->node = KEYCHAIN_NODE;
                    313: 
                    314:   return CMD_SUCCESS;
                    315: }
                    316: 
                    317: DEFUN (key_string,
                    318:        key_string_cmd,
                    319:        "key-string LINE",
                    320:        "Set key string\n"
                    321:        "The key\n")
                    322: {
                    323:   struct key *key;
                    324: 
                    325:   key = vty->index_sub;
                    326: 
                    327:   if (key->string)
                    328:     free (key->string);
                    329:   key->string = strdup (argv[0]);
                    330: 
                    331:   return CMD_SUCCESS;
                    332: }
                    333: 
                    334: DEFUN (no_key_string,
                    335:        no_key_string_cmd,
                    336:        "no key-string [LINE]",
                    337:        NO_STR
                    338:        "Unset key string\n"
                    339:        "The key\n")
                    340: {
                    341:   struct key *key;
                    342: 
                    343:   key = vty->index_sub;
                    344: 
                    345:   if (key->string)
                    346:     {
                    347:       free (key->string);
                    348:       key->string = NULL;
                    349:     }
                    350: 
                    351:   return CMD_SUCCESS;
                    352: }
                    353: 
                    354: /* Convert HH:MM:SS MON DAY YEAR to time_t value.  -1 is returned when
                    355:    given string is malformed. */
                    356: static time_t 
                    357: key_str2time (const char *time_str, const char *day_str, const char *month_str,
                    358:              const char *year_str)
                    359: {
                    360:   int i = 0;
                    361:   char *colon;
                    362:   struct tm tm;
                    363:   time_t time;
                    364:   unsigned int sec, min, hour;
                    365:   unsigned int day, month, year;
                    366: 
                    367:   const char *month_name[] = 
                    368:   {
                    369:     "January",
                    370:     "February",
                    371:     "March",
                    372:     "April",
                    373:     "May",
                    374:     "June",
                    375:     "July",
                    376:     "August",
                    377:     "September",
                    378:     "October",
                    379:     "November",
                    380:     "December",
                    381:     NULL
                    382:   };
                    383: 
                    384: #define GET_LONG_RANGE(V,STR,MIN,MAX) \
                    385: { \
                    386:   unsigned long tmpl; \
                    387:   char *endptr = NULL; \
                    388:   tmpl = strtoul ((STR), &endptr, 10); \
                    389:   if (*endptr != '\0' || tmpl == ULONG_MAX) \
                    390:     return -1; \
                    391:   if ( tmpl < (MIN) || tmpl > (MAX)) \
                    392:     return -1; \
                    393:   (V) = tmpl; \
                    394: }
                    395:       
                    396:   /* Check hour field of time_str. */
                    397:   colon = strchr (time_str, ':');
                    398:   if (colon == NULL)
                    399:     return -1;
                    400:   *colon = '\0';
                    401: 
                    402:   /* Hour must be between 0 and 23. */
                    403:   GET_LONG_RANGE (hour, time_str, 0, 23);
                    404: 
                    405:   /* Check min field of time_str. */
                    406:   time_str = colon + 1;
                    407:   colon = strchr (time_str, ':');
                    408:   if (*time_str == '\0' || colon == NULL)
                    409:     return -1;
                    410:   *colon = '\0';
                    411: 
                    412:   /* Min must be between 0 and 59. */
                    413:   GET_LONG_RANGE (min, time_str, 0, 59);
                    414: 
                    415:   /* Check sec field of time_str. */
                    416:   time_str = colon + 1;
                    417:   if (*time_str == '\0')
                    418:     return -1;
                    419:   
                    420:   /* Sec must be between 0 and 59. */
                    421:   GET_LONG_RANGE (sec, time_str, 0, 59);
                    422:   
                    423:   /* Check day_str.  Day must be <1-31>. */
                    424:   GET_LONG_RANGE (day, day_str, 1, 31);
                    425: 
                    426:   /* Check month_str.  Month must match month_name. */
                    427:   month = 0;
                    428:   if (strlen (month_str) >= 3)
                    429:     for (i = 0; month_name[i]; i++)
                    430:       if (strncmp (month_str, month_name[i], strlen (month_str)) == 0)
                    431:        {
                    432:          month = i;
                    433:          break;
                    434:        }
                    435:   if (! month_name[i])
                    436:     return -1;
                    437: 
                    438:   /* Check year_str.  Year must be <1993-2035>. */
                    439:   GET_LONG_RANGE (year, year_str, 1993, 2035);
                    440:   
                    441:   memset (&tm, 0, sizeof (struct tm));
                    442:   tm.tm_sec = sec;
                    443:   tm.tm_min = min;
                    444:   tm.tm_hour = hour;
                    445:   tm.tm_mon = month;
                    446:   tm.tm_mday = day;
                    447:   tm.tm_year = year - 1900;
                    448:     
                    449:   time = mktime (&tm);
                    450:   
                    451:   return time;
                    452: #undef GET_LONG_RANGE
                    453: }
                    454: 
                    455: static int
                    456: key_lifetime_set (struct vty *vty, struct key_range *krange,
                    457:                  const char *stime_str, const char *sday_str,
                    458:                  const char *smonth_str, const char *syear_str,
                    459:                  const char *etime_str, const char *eday_str,
                    460:                  const char *emonth_str, const char *eyear_str)
                    461: {
                    462:   time_t time_start;
                    463:   time_t time_end;
                    464:   
                    465:   time_start = key_str2time (stime_str, sday_str, smonth_str, syear_str);
                    466:   if (time_start < 0)
                    467:     {
                    468:       vty_out (vty, "Malformed time value%s", VTY_NEWLINE);
                    469:       return CMD_WARNING;
                    470:     }
                    471:   time_end = key_str2time (etime_str, eday_str, emonth_str, eyear_str);
                    472: 
                    473:   if (time_end < 0)
                    474:     {
                    475:       vty_out (vty, "Malformed time value%s", VTY_NEWLINE);
                    476:       return CMD_WARNING;
                    477:     }
                    478: 
                    479:   if (time_end <= time_start)
                    480:     {
                    481:       vty_out (vty, "Expire time is not later than start time%s", VTY_NEWLINE);
                    482:       return CMD_WARNING;
                    483:     }
                    484: 
                    485:   krange->start = time_start;
                    486:   krange->end = time_end;
                    487: 
                    488:   return CMD_SUCCESS;
                    489: }
                    490: 
                    491: static int
                    492: key_lifetime_duration_set (struct vty *vty, struct key_range *krange,
                    493:                           const char *stime_str, const char *sday_str,
                    494:                           const char *smonth_str, const char *syear_str,
                    495:                           const char *duration_str)
                    496: {
                    497:   time_t time_start;
                    498:   u_int32_t duration;
                    499:     
                    500:   time_start = key_str2time (stime_str, sday_str, smonth_str, syear_str);
                    501:   if (time_start < 0)
                    502:     {
                    503:       vty_out (vty, "Malformed time value%s", VTY_NEWLINE);
                    504:       return CMD_WARNING;
                    505:     }
                    506:   krange->start = time_start;
                    507: 
                    508:   VTY_GET_INTEGER ("duration", duration, duration_str);
                    509:   krange->duration = 1;
                    510:   krange->end = time_start + duration;
                    511: 
                    512:   return CMD_SUCCESS;
                    513: }
                    514: 
                    515: static int
                    516: key_lifetime_infinite_set (struct vty *vty, struct key_range *krange,
                    517:                           const char *stime_str, const char *sday_str,
                    518:                           const char *smonth_str, const char *syear_str)
                    519: {
                    520:   time_t time_start;
                    521:     
                    522:   time_start = key_str2time (stime_str, sday_str, smonth_str, syear_str);
                    523:   if (time_start < 0)
                    524:     {
                    525:       vty_out (vty, "Malformed time value%s", VTY_NEWLINE);
                    526:       return CMD_WARNING;
                    527:     }
                    528:   krange->start = time_start;
                    529: 
                    530:   krange->end = -1;
                    531: 
                    532:   return CMD_SUCCESS;
                    533: }
                    534: 
                    535: DEFUN (accept_lifetime_day_month_day_month,
                    536:        accept_lifetime_day_month_day_month_cmd,
                    537:        "accept-lifetime HH:MM:SS <1-31> MONTH <1993-2035> HH:MM:SS <1-31> MONTH <1993-2035>",
                    538:        "Set accept lifetime of the key\n"
                    539:        "Time to start\n"
                    540:        "Day of th month to start\n"
                    541:        "Month of the year to start\n"
                    542:        "Year to start\n"
                    543:        "Time to expire\n"
                    544:        "Day of th month to expire\n"
                    545:        "Month of the year to expire\n"
                    546:        "Year to expire\n")
                    547: {
                    548:   struct key *key;
                    549: 
                    550:   key = vty->index_sub;
                    551: 
                    552:   return key_lifetime_set (vty, &key->accept, argv[0], argv[1], argv[2],
                    553:                           argv[3], argv[4], argv[5], argv[6], argv[7]);
                    554: }
                    555: 
                    556: DEFUN (accept_lifetime_day_month_month_day,
                    557:        accept_lifetime_day_month_month_day_cmd,
                    558:        "accept-lifetime HH:MM:SS <1-31> MONTH <1993-2035> HH:MM:SS MONTH <1-31> <1993-2035>",
                    559:        "Set accept lifetime of the key\n"
                    560:        "Time to start\n"
                    561:        "Day of th month to start\n"
                    562:        "Month of the year to start\n"
                    563:        "Year to start\n"
                    564:        "Time to expire\n"
                    565:        "Month of the year to expire\n"
                    566:        "Day of th month to expire\n"
                    567:        "Year to expire\n")
                    568: {
                    569:   struct key *key;
                    570: 
                    571:   key = vty->index_sub;
                    572: 
                    573:   return key_lifetime_set (vty, &key->accept, argv[0], argv[1], argv[2],
                    574:                           argv[3], argv[4], argv[6], argv[5], argv[7]);
                    575: }
                    576: 
                    577: DEFUN (accept_lifetime_month_day_day_month,
                    578:        accept_lifetime_month_day_day_month_cmd,
                    579:        "accept-lifetime HH:MM:SS MONTH <1-31> <1993-2035> HH:MM:SS <1-31> MONTH <1993-2035>",
                    580:        "Set accept lifetime of the key\n"
                    581:        "Time to start\n"
                    582:        "Month of the year to start\n"
                    583:        "Day of th month to start\n"
                    584:        "Year to start\n"
                    585:        "Time to expire\n"
                    586:        "Day of th month to expire\n"
                    587:        "Month of the year to expire\n"
                    588:        "Year to expire\n")
                    589: {
                    590:   struct key *key;
                    591: 
                    592:   key = vty->index_sub;
                    593: 
                    594:   return key_lifetime_set (vty, &key->accept, argv[0], argv[2], argv[1],
                    595:                           argv[3], argv[4], argv[5], argv[6], argv[7]);
                    596: }
                    597: 
                    598: DEFUN (accept_lifetime_month_day_month_day,
                    599:        accept_lifetime_month_day_month_day_cmd,
                    600:        "accept-lifetime HH:MM:SS MONTH <1-31> <1993-2035> HH:MM:SS MONTH <1-31> <1993-2035>",
                    601:        "Set accept lifetime of the key\n"
                    602:        "Time to start\n"
                    603:        "Month of the year to start\n"
                    604:        "Day of th month to start\n"
                    605:        "Year to start\n"
                    606:        "Time to expire\n"
                    607:        "Month of the year to expire\n"
                    608:        "Day of th month to expire\n"
                    609:        "Year to expire\n")
                    610: {
                    611:   struct key *key;
                    612: 
                    613:   key = vty->index_sub;
                    614: 
                    615:   return key_lifetime_set (vty, &key->accept, argv[0], argv[2], argv[1],
                    616:                           argv[3], argv[4], argv[6], argv[5], argv[7]);
                    617: }
                    618: 
                    619: DEFUN (accept_lifetime_infinite_day_month,
                    620:        accept_lifetime_infinite_day_month_cmd,
                    621:        "accept-lifetime HH:MM:SS <1-31> MONTH <1993-2035> infinite",
                    622:        "Set accept lifetime of the key\n"
                    623:        "Time to start\n"
                    624:        "Day of th month to start\n"
                    625:        "Month of the year to start\n"
                    626:        "Year to start\n"
                    627:        "Never expires")
                    628: {
                    629:   struct key *key;
                    630: 
                    631:   key = vty->index_sub;
                    632: 
                    633:   return key_lifetime_infinite_set (vty, &key->accept, argv[0], argv[1],
                    634:                                    argv[2], argv[3]);
                    635: }
                    636: 
                    637: DEFUN (accept_lifetime_infinite_month_day,
                    638:        accept_lifetime_infinite_month_day_cmd,
                    639:        "accept-lifetime HH:MM:SS MONTH <1-31> <1993-2035> infinite",
                    640:        "Set accept lifetime of the key\n"
                    641:        "Time to start\n"
                    642:        "Month of the year to start\n"
                    643:        "Day of th month to start\n"
                    644:        "Year to start\n"
                    645:        "Never expires")
                    646: {
                    647:   struct key *key;
                    648: 
                    649:   key = vty->index_sub;
                    650: 
                    651:   return key_lifetime_infinite_set (vty, &key->accept, argv[0], argv[2],
                    652:                                    argv[1], argv[3]);
                    653: }
                    654: 
                    655: DEFUN (accept_lifetime_duration_day_month,
                    656:        accept_lifetime_duration_day_month_cmd,
                    657:        "accept-lifetime HH:MM:SS <1-31> MONTH <1993-2035> duration <1-2147483646>",
                    658:        "Set accept lifetime of the key\n"
                    659:        "Time to start\n"
                    660:        "Day of th month to start\n"
                    661:        "Month of the year to start\n"
                    662:        "Year to start\n"
                    663:        "Duration of the key\n"
                    664:        "Duration seconds\n")
                    665: {
                    666:   struct key *key;
                    667: 
                    668:   key = vty->index_sub;
                    669: 
                    670:   return key_lifetime_duration_set (vty, &key->accept, argv[0], argv[1],
                    671:                                    argv[2], argv[3], argv[4]);
                    672: }
                    673: 
                    674: DEFUN (accept_lifetime_duration_month_day,
                    675:        accept_lifetime_duration_month_day_cmd,
                    676:        "accept-lifetime HH:MM:SS MONTH <1-31> <1993-2035> duration <1-2147483646>",
                    677:        "Set accept lifetime of the key\n"
                    678:        "Time to start\n"
                    679:        "Month of the year to start\n"
                    680:        "Day of th month to start\n"
                    681:        "Year to start\n"
                    682:        "Duration of the key\n"
                    683:        "Duration seconds\n")
                    684: {
                    685:   struct key *key;
                    686: 
                    687:   key = vty->index_sub;
                    688: 
                    689:   return key_lifetime_duration_set (vty, &key->accept, argv[0], argv[2],
                    690:                                    argv[1], argv[3], argv[4]);
                    691: }
                    692: 
                    693: DEFUN (send_lifetime_day_month_day_month,
                    694:        send_lifetime_day_month_day_month_cmd,
                    695:        "send-lifetime HH:MM:SS <1-31> MONTH <1993-2035> HH:MM:SS <1-31> MONTH <1993-2035>",
                    696:        "Set send lifetime of the key\n"
                    697:        "Time to start\n"
                    698:        "Day of th month to start\n"
                    699:        "Month of the year to start\n"
                    700:        "Year to start\n"
                    701:        "Time to expire\n"
                    702:        "Day of th month to expire\n"
                    703:        "Month of the year to expire\n"
                    704:        "Year to expire\n")
                    705: {
                    706:   struct key *key;
                    707: 
                    708:   key = vty->index_sub;
                    709: 
                    710:   return key_lifetime_set (vty, &key->send, argv[0], argv[1], argv[2], argv[3],
                    711:                           argv[4], argv[5], argv[6], argv[7]);
                    712: }
                    713: 
                    714: DEFUN (send_lifetime_day_month_month_day,
                    715:        send_lifetime_day_month_month_day_cmd,
                    716:        "send-lifetime HH:MM:SS <1-31> MONTH <1993-2035> HH:MM:SS MONTH <1-31> <1993-2035>",
                    717:        "Set send lifetime of the key\n"
                    718:        "Time to start\n"
                    719:        "Day of th month to start\n"
                    720:        "Month of the year to start\n"
                    721:        "Year to start\n"
                    722:        "Time to expire\n"
                    723:        "Month of the year to expire\n"
                    724:        "Day of th month to expire\n"
                    725:        "Year to expire\n")
                    726: {
                    727:   struct key *key;
                    728: 
                    729:   key = vty->index_sub;
                    730: 
                    731:   return key_lifetime_set (vty, &key->send, argv[0], argv[1], argv[2], argv[3],
                    732:                           argv[4], argv[6], argv[5], argv[7]);
                    733: }
                    734: 
                    735: DEFUN (send_lifetime_month_day_day_month,
                    736:        send_lifetime_month_day_day_month_cmd,
                    737:        "send-lifetime HH:MM:SS MONTH <1-31> <1993-2035> HH:MM:SS <1-31> MONTH <1993-2035>",
                    738:        "Set send lifetime of the key\n"
                    739:        "Time to start\n"
                    740:        "Month of the year to start\n"
                    741:        "Day of th month to start\n"
                    742:        "Year to start\n"
                    743:        "Time to expire\n"
                    744:        "Day of th month to expire\n"
                    745:        "Month of the year to expire\n"
                    746:        "Year to expire\n")
                    747: {
                    748:   struct key *key;
                    749: 
                    750:   key = vty->index_sub;
                    751: 
                    752:   return key_lifetime_set (vty, &key->send, argv[0], argv[2], argv[1], argv[3],
                    753:                           argv[4], argv[5], argv[6], argv[7]);
                    754: }
                    755: 
                    756: DEFUN (send_lifetime_month_day_month_day,
                    757:        send_lifetime_month_day_month_day_cmd,
                    758:        "send-lifetime HH:MM:SS MONTH <1-31> <1993-2035> HH:MM:SS MONTH <1-31> <1993-2035>",
                    759:        "Set send lifetime of the key\n"
                    760:        "Time to start\n"
                    761:        "Month of the year to start\n"
                    762:        "Day of th month to start\n"
                    763:        "Year to start\n"
                    764:        "Time to expire\n"
                    765:        "Month of the year to expire\n"
                    766:        "Day of th month to expire\n"
                    767:        "Year to expire\n")
                    768: {
                    769:   struct key *key;
                    770: 
                    771:   key = vty->index_sub;
                    772: 
                    773:   return key_lifetime_set (vty, &key->send, argv[0], argv[2], argv[1], argv[3],
                    774:                           argv[4], argv[6], argv[5], argv[7]);
                    775: }
                    776: 
                    777: DEFUN (send_lifetime_infinite_day_month,
                    778:        send_lifetime_infinite_day_month_cmd,
                    779:        "send-lifetime HH:MM:SS <1-31> MONTH <1993-2035> infinite",
                    780:        "Set send lifetime of the key\n"
                    781:        "Time to start\n"
                    782:        "Day of th month to start\n"
                    783:        "Month of the year to start\n"
                    784:        "Year to start\n"
                    785:        "Never expires")
                    786: {
                    787:   struct key *key;
                    788: 
                    789:   key = vty->index_sub;
                    790: 
                    791:   return key_lifetime_infinite_set (vty, &key->send, argv[0], argv[1], argv[2],
                    792:                                    argv[3]);
                    793: }
                    794: 
                    795: DEFUN (send_lifetime_infinite_month_day,
                    796:        send_lifetime_infinite_month_day_cmd,
                    797:        "send-lifetime HH:MM:SS MONTH <1-31> <1993-2035> infinite",
                    798:        "Set send lifetime of the key\n"
                    799:        "Time to start\n"
                    800:        "Month of the year to start\n"
                    801:        "Day of th month to start\n"
                    802:        "Year to start\n"
                    803:        "Never expires")
                    804: {
                    805:   struct key *key;
                    806: 
                    807:   key = vty->index_sub;
                    808: 
                    809:   return key_lifetime_infinite_set (vty, &key->send, argv[0], argv[2], argv[1],
                    810:                                    argv[3]);
                    811: }
                    812: 
                    813: DEFUN (send_lifetime_duration_day_month,
                    814:        send_lifetime_duration_day_month_cmd,
                    815:        "send-lifetime HH:MM:SS <1-31> MONTH <1993-2035> duration <1-2147483646>",
                    816:        "Set send lifetime of the key\n"
                    817:        "Time to start\n"
                    818:        "Day of th month to start\n"
                    819:        "Month of the year to start\n"
                    820:        "Year to start\n"
                    821:        "Duration of the key\n"
                    822:        "Duration seconds\n")
                    823: {
                    824:   struct key *key;
                    825: 
                    826:   key = vty->index_sub;
                    827: 
                    828:   return key_lifetime_duration_set (vty, &key->send, argv[0], argv[1], argv[2],
                    829:                                    argv[3], argv[4]);
                    830: }
                    831: 
                    832: DEFUN (send_lifetime_duration_month_day,
                    833:        send_lifetime_duration_month_day_cmd,
                    834:        "send-lifetime HH:MM:SS MONTH <1-31> <1993-2035> duration <1-2147483646>",
                    835:        "Set send lifetime of the key\n"
                    836:        "Time to start\n"
                    837:        "Month of the year to start\n"
                    838:        "Day of th month to start\n"
                    839:        "Year to start\n"
                    840:        "Duration of the key\n"
                    841:        "Duration seconds\n")
                    842: {
                    843:   struct key *key;
                    844: 
                    845:   key = vty->index_sub;
                    846: 
                    847:   return key_lifetime_duration_set (vty, &key->send, argv[0], argv[2], argv[1],
                    848:                                    argv[3], argv[4]);
                    849: }
                    850: 
                    851: static struct cmd_node keychain_node =
                    852: {
                    853:   KEYCHAIN_NODE,
                    854:   "%s(config-keychain)# ",
                    855:   1
                    856: };
                    857: 
                    858: static struct cmd_node keychain_key_node =
                    859: {
                    860:   KEYCHAIN_KEY_NODE,
                    861:   "%s(config-keychain-key)# ",
                    862:   1
                    863: };
                    864: 
                    865: static int
                    866: keychain_strftime (char *buf, int bufsiz, time_t *time)
                    867: {
                    868:   struct tm *tm;
                    869:   size_t len;
                    870: 
                    871:   tm = localtime (time);
                    872: 
                    873:   len = strftime (buf, bufsiz, "%T %b %d %Y", tm);
                    874: 
                    875:   return len;
                    876: }
                    877: 
                    878: static int
                    879: keychain_config_write (struct vty *vty)
                    880: {
                    881:   struct keychain *keychain;
                    882:   struct key *key;
                    883:   struct listnode *node;
                    884:   struct listnode *knode;
                    885:   char buf[BUFSIZ];
                    886: 
                    887:   for (ALL_LIST_ELEMENTS_RO (keychain_list, node, keychain))
                    888:     {
                    889:       vty_out (vty, "key chain %s%s", keychain->name, VTY_NEWLINE);
                    890:       
                    891:       for (ALL_LIST_ELEMENTS_RO (keychain->key, knode, key))
                    892:        {
                    893:          vty_out (vty, " key %d%s", key->index, VTY_NEWLINE);
                    894: 
                    895:          if (key->string)
                    896:            vty_out (vty, "  key-string %s%s", key->string, VTY_NEWLINE);
                    897: 
                    898:          if (key->accept.start)
                    899:            {
                    900:              keychain_strftime (buf, BUFSIZ, &key->accept.start);
                    901:              vty_out (vty, "  accept-lifetime %s", buf);
                    902: 
                    903:              if (key->accept.end == -1)
                    904:                vty_out (vty, " infinite");
                    905:              else if (key->accept.duration)
                    906:                vty_out (vty, " duration %ld",
                    907:                         (long)(key->accept.end - key->accept.start));
                    908:              else
                    909:                {
                    910:                  keychain_strftime (buf, BUFSIZ, &key->accept.end);
                    911:                  vty_out (vty, " %s", buf);
                    912:                }
                    913:              vty_out (vty, "%s", VTY_NEWLINE);
                    914:            }
                    915: 
                    916:          if (key->send.start)
                    917:            {
                    918:              keychain_strftime (buf, BUFSIZ, &key->send.start);
                    919:              vty_out (vty, "  send-lifetime %s", buf);
                    920: 
                    921:              if (key->send.end == -1)
                    922:                vty_out (vty, " infinite");
                    923:              else if (key->send.duration)
                    924:                vty_out (vty, " duration %ld", (long)(key->send.end - key->send.start));
                    925:              else
                    926:                {
                    927:                  keychain_strftime (buf, BUFSIZ, &key->send.end);
                    928:                  vty_out (vty, " %s", buf);
                    929:                }
                    930:              vty_out (vty, "%s", VTY_NEWLINE);
                    931:            }
                    932:        }
                    933:       vty_out (vty, "!%s", VTY_NEWLINE);
                    934:     }
                    935: 
                    936:   return 0;
                    937: }
                    938: 
                    939: void
                    940: keychain_init ()
                    941: {
                    942:   keychain_list = list_new ();
                    943: 
                    944:   install_node (&keychain_node, keychain_config_write);
                    945:   install_node (&keychain_key_node, NULL);
                    946: 
                    947:   install_default (KEYCHAIN_NODE);
                    948:   install_default (KEYCHAIN_KEY_NODE);
                    949: 
                    950:   install_element (CONFIG_NODE, &key_chain_cmd);
                    951:   install_element (CONFIG_NODE, &no_key_chain_cmd);
                    952:   install_element (KEYCHAIN_NODE, &key_cmd);
                    953:   install_element (KEYCHAIN_NODE, &no_key_cmd);
                    954: 
                    955:   install_element (KEYCHAIN_NODE, &key_chain_cmd);
                    956:   install_element (KEYCHAIN_NODE, &no_key_chain_cmd);
                    957: 
                    958:   install_element (KEYCHAIN_KEY_NODE, &key_string_cmd);
                    959:   install_element (KEYCHAIN_KEY_NODE, &no_key_string_cmd);
                    960: 
                    961:   install_element (KEYCHAIN_KEY_NODE, &key_chain_cmd);
                    962:   install_element (KEYCHAIN_KEY_NODE, &no_key_chain_cmd);
                    963: 
                    964:   install_element (KEYCHAIN_KEY_NODE, &key_cmd);
                    965:   install_element (KEYCHAIN_KEY_NODE, &no_key_cmd);
                    966: 
                    967:   install_element (KEYCHAIN_KEY_NODE, &accept_lifetime_day_month_day_month_cmd);
                    968:   install_element (KEYCHAIN_KEY_NODE, &accept_lifetime_day_month_month_day_cmd);
                    969:   install_element (KEYCHAIN_KEY_NODE, &accept_lifetime_month_day_day_month_cmd);
                    970:   install_element (KEYCHAIN_KEY_NODE, &accept_lifetime_month_day_month_day_cmd);
                    971:   install_element (KEYCHAIN_KEY_NODE, &accept_lifetime_infinite_day_month_cmd);
                    972:   install_element (KEYCHAIN_KEY_NODE, &accept_lifetime_infinite_month_day_cmd);
                    973:   install_element (KEYCHAIN_KEY_NODE, &accept_lifetime_duration_day_month_cmd);
                    974:   install_element (KEYCHAIN_KEY_NODE, &accept_lifetime_duration_month_day_cmd);
                    975: 
                    976:   install_element (KEYCHAIN_KEY_NODE, &send_lifetime_day_month_day_month_cmd);
                    977:   install_element (KEYCHAIN_KEY_NODE, &send_lifetime_day_month_month_day_cmd);
                    978:   install_element (KEYCHAIN_KEY_NODE, &send_lifetime_month_day_day_month_cmd);
                    979:   install_element (KEYCHAIN_KEY_NODE, &send_lifetime_month_day_month_day_cmd);
                    980:   install_element (KEYCHAIN_KEY_NODE, &send_lifetime_infinite_day_month_cmd);
                    981:   install_element (KEYCHAIN_KEY_NODE, &send_lifetime_infinite_month_day_cmd);
                    982:   install_element (KEYCHAIN_KEY_NODE, &send_lifetime_duration_day_month_cmd);
                    983:   install_element (KEYCHAIN_KEY_NODE, &send_lifetime_duration_month_day_cmd);
                    984: }

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