src/kauth/decode_ticket.c

   1 /*
   2  * Copyright 2000, International Business Machines Corporation and others.
   3  * All Rights Reserved.
   4  *
   5  * This software has been released under the terms of the IBM Public
   6  * License.  For details, see the LICENSE file in the top-level source
   7  * directory or online at http://www.openafs.org/dl/license10.html
   8  */
   9
  10 #include <afsconfig.h>
  11 #include <afs/param.h>
  12
  13
  14 #include <des.h>
  15 #include <afs/com_err.h>
  16 #include <afs/auth.h>
  17 #include <rx/rxkad.h>
  18 #include "kautils.h"
  19
  20 static char *whoami;
  21
  22 int
  23 main(int argc, char *argv[])
  24 {
  25     struct ktc_principal client;
  26     struct ktc_encryptionKey sessionkey;
  27     Date start, end;
  28     afs_int32 host;
  29     char key[8];
  30     char ticket[MAXKTCTICKETLEN];
  31     afs_int32 ticketLen;
  32     afs_int32 code;
  33     char bob[KA_TIMESTR_LEN];
  34
  35     whoami = argv[0];
  36     initialize_RXK_error_table();
  37     initialize_KA_error_table();
  38
  39     if (argc != 3) {
  40         printf("Usage is %s key ticket\n", whoami);
  41         exit(1);
  42     }
  43     if (ka_ReadBytes(argv[1], key, sizeof(key)) != 8)
  44         printf("Key must be 8 bytes long\n");
  45     if (!des_check_key_parity(key) || des_is_weak_key(key)) {
  46         afs_com_err(whoami, KABADKEY, "server's key for decoding ticket is bad");
  47         exit(1);
  48     }
  49     ticketLen = ka_ReadBytes(argv[2], ticket, sizeof(ticket));
  50     printf("Ticket length is %d\n", ticketLen);
  51
  52     code =
  53         tkt_DecodeTicket(ticket, ticketLen, key, client.name, client.instance,
  54                          client.cell, &sessionkey, &host, &start, &end);
  55     if (code) {
  56         afs_com_err(whoami, code, "decoding ticket");
  57         if (code = tkt_CheckTimes(start, end, time(0)) <= 0)
  58             afs_com_err(whoami, 0, "because of start or end times");
  59         exit(1);
  60     }
  61
  62     if (!des_check_key_parity(&sessionkey) || des_is_weak_key(&sessionkey)) {
  63         afs_com_err(whoami, KABADKEY, "checking ticket's session key");
  64         exit(1);
  65     }
  66
  67     ka_PrintUserID("Client is ", client.name, client.instance, 0);
  68     if (strlen(client.cell))
  69         printf("@%s", client.cell);
  70     printf("\nSession key is ");
  71     ka_PrintBytes(&sessionkey, 8);
  72     ka_timestr(start, bob, KA_TIMESTR_LEN);
  73     printf("\nGood from %s", bob);
  74     ka_timestr(end, bob, KA_TIMESTR_LEN);
  75     printf(" till %s\n", bob);
  76 }