include/prot.h

   1 /*
   2  *      $Source$
   3  *      $Author$
   4  *      $Locker$
   5  *
   6  * Copyright 1985,1986 by the Massachusetts Institute of Technology
   7  *
   8  */
   9
  10
  11 #define         KRB_PORT                750 /* PC's don't have /etc/services */
  12 #define         KRB_PROT_VERSION        4
  13 #define         MAX_PKT_LEN             1000
  14 #define         MAX_TXT_LEN             1000
  15 #define         TICKET_GRANTING_TICKET  "krbtgt"
  16
  17 /* Macro's to obtain various fields from a packet */
  18
  19 #define pkt_version(packet)   (unsigned int) *(packet->dat)
  20 #define pkt_msg_type(packet)  (unsigned int) *(packet->dat+1)
  21 #define pkt_a_name(packet)    (packet->dat+2)
  22 #define pkt_a_inst(packet)    (packet->dat+3+strlen(pkt_a_name(packet)))
  23 #define pkt_a_realm(packet)   (pkt_a_inst(packet)+1+strlen(pkt_a_inst(packet)))
  24
  25
  26 /* Macro to obtain realm from application request */
  27 #define apreq_realm(auth)     (auth->dat + 3)
  28
  29
  30 /* If there are long alignment problems, these */
  31 /* will have to be rewritten                     */
  32
  33 #define pkt_time_ws(packet) (unsigned long *) \
  34         (packet->dat+5+strlen(pkt_a_name(packet))+strlen(pkt_a_inst(packet)) \
  35                 +strlen(pkt_a_realm(packet)))
  36 #define pkt_no_req(packet) (unsigned short) \
  37         *(packet->dat+9+strlen(pkt_a_name(packet))+ \
  38         strlen(pkt_a_inst(packet))+strlen(pkt_a_realm(packet)))
  39
  40 #define pkt_x_date(packet) (unsigned long *) \
  41         (packet->dat+10+strlen(pkt_a_name(packet))+strlen(pkt_a_inst(packet)) \
  42                 +strlen(pkt_a_realm(packet)))
  43
  44 #define pkt_err_code(packet) ( (unsigned long *) \
  45         (packet->dat+9+strlen(pkt_a_name(packet))+strlen(pkt_a_inst(packet)) \
  46                 +strlen(pkt_a_realm(packet))))
  47 #define pkt_err_text(packet) \
  48         (packet->dat+13+strlen(pkt_a_name(packet))+ \
  49                 strlen(pkt_a_inst(packet))+strlen(pkt_a_realm(packet)))
  50
  51 /* Routines to create and read packets may be found in prot.c */
  52
  53 struct ktext    *create_packet_to_kdc();
  54 struct ktext    *create_auth_reply();
  55 struct ktext    *create_death_packet();
  56 struct ktext    *pkt_cipher();
  57
  58 /* Message types , always leave lsb for byte order */
  59
  60 #define         AUTH_MSG_KDC_REQUEST            1<<1
  61 #define         AUTH_MSG_KDC_REPLY                      2<<1
  62 #define         AUTH_MSG_APPL_REQUEST           3<<1
  63 #define         AUTH_MSG_APPL_REQUEST_MUTUAL 4<<1
  64 #define         AUTH_MSG_ERR_REPLY                      5<<1
  65 #define         AUTH_MSG_PRIVATE                        6<<1
  66 #define         AUTH_MSG_SAFE                           7<<1
  67 #define         AUTH_MSG_APPL_ERR                       8<<1
  68 #define         AUTH_MSG_DIE                            63<<1
  69
  70 /* values for kerb error codes          */
  71 #define                 KERB_ERR_OK                     0
  72 #define                 KERB_ERR_NAME_EXP               1
  73 #define                 KERB_ERR_SERVICE_EXP            2
  74 #define                 KERB_ERR_AUTH_EXP               3
  75 #define                 KERB_ERR_PKT_VER                4
  76 #define                 KERB_ERR_NAME_MAST_KEY_VER      5
  77 #define                 KERB_ERR_SERV_MAST_KEY_VER      6
  78 #define                 KERB_ERR_BYTE_ORDER             7
  79 #define                 KERB_ERR_PRINCIPAL_UNKNOWN      8
  80 #define                 KERB_ERR_PRINCIPAL_NOT_UNIQUE   9
  81 #define                 KERB_ERR_NULL_KEY              10
  82
  83 /* Byte ordering                                                                                                                   */
  84 static int      ONE = 1;
  85 #define         HOST_BYTE_ORDER (* (char *) &ONE)
  86 #define         MSB_FIRST               0       /*  68000                                                                  */
  87 #define         LSB_FIRST               1       /*  Vax, PC8086                                                    */