Line data    Source code

       1             : /*
       2             :  * Copyright (c) 1997 - 2003 Kungliga Tekniska Högskolan
       3             :  * (Royal Institute of Technology, Stockholm, Sweden).
       4             :  * All rights reserved.
       5             :  *
       6             :  * Redistribution and use in source and binary forms, with or without
       7             :  * modification, are permitted provided that the following conditions
       8             :  * are met:
       9             :  *
      10             :  * 1. Redistributions of source code must retain the above copyright
      11             :  *    notice, this list of conditions and the following disclaimer.
      12             :  *
      13             :  * 2. Redistributions in binary form must reproduce the above copyright
      14             :  *    notice, this list of conditions and the following disclaimer in the
      15             :  *    documentation and/or other materials provided with the distribution.
      16             :  *
      17             :  * 3. Neither the name of the Institute 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 INSTITUTE 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 INSTITUTE 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 "krb5_locl.h"
      35             : 
      36             : KRB5_LIB_FUNCTION krb5_error_code KRB5_LIB_CALL
      37       36193 : krb5_mk_error_ext(krb5_context context,
      38             :                   krb5_error_code error_code,
      39             :                   const char *e_text,
      40             :                   const krb5_data *e_data,
      41             :                   const krb5_principal server,
      42             :                   const PrincipalName *client_name,
      43             :                   const Realm *client_realm,
      44             :                   time_t *client_time,
      45             :                   int *client_usec,
      46             :                   krb5_data *reply)
      47             : {
      48       36193 :     const char *e_text2 = NULL;
      49        1170 :     KRB_ERROR msg;
      50        1170 :     krb5_timestamp sec;
      51        1170 :     int32_t usec;
      52       36193 :     size_t len = 0;
      53       36193 :     krb5_error_code ret = 0;
      54             : 
      55       36193 :     krb5_us_timeofday (context, &sec, &usec);
      56             : 
      57       36193 :     memset(&msg, 0, sizeof(msg));
      58       36193 :     msg.pvno     = 5;
      59       36193 :     msg.msg_type = krb_error;
      60       36193 :     msg.stime    = sec;
      61       36193 :     msg.susec    = usec;
      62       36193 :     msg.ctime    = client_time;
      63       36193 :     msg.cusec    = client_usec;
      64             :     /* Make sure we only send `protocol' error codes */
      65       36193 :     if(error_code < KRB5KDC_ERR_NONE || error_code >= KRB5_ERR_RCSID) {
      66          39 :         if(e_text == NULL)
      67          39 :             e_text = e_text2 = krb5_get_error_message(context, error_code);
      68          39 :         error_code = KRB5KRB_ERR_GENERIC;
      69             :     }
      70       36193 :     msg.error_code = error_code - KRB5KDC_ERR_NONE;
      71       36193 :     if (e_text)
      72       30793 :         msg.e_text = rk_UNCONST(&e_text);
      73       36193 :     if (e_data)
      74       32397 :         msg.e_data = rk_UNCONST(e_data);
      75       36193 :     if(server){
      76       34919 :         msg.realm = server->realm;
      77       34919 :         msg.sname = server->name;
      78             :     }else{
      79           0 :         static const char unspec[] = "<unspecified realm>";
      80        1274 :         msg.realm = rk_UNCONST(unspec);
      81             :     }
      82       36193 :     msg.crealm = rk_UNCONST(client_realm);
      83       36193 :     msg.cname = rk_UNCONST(client_name);
      84             : 
      85       36193 :     ASN1_MALLOC_ENCODE(KRB_ERROR, reply->data, reply->length, &msg, &len, ret);
      86       36193 :     if (e_text2)
      87          39 :         krb5_free_error_message(context, e_text2);
      88       36193 :     if (ret)
      89           0 :         return ret;
      90       36193 :     if(reply->length != len)
      91           0 :         krb5_abortx(context, "internal error in ASN.1 encoder");
      92       35023 :     return 0;
      93             : }
      94             : 
      95             : KRB5_LIB_FUNCTION krb5_error_code KRB5_LIB_CALL
      96       36193 : krb5_mk_error(krb5_context context,
      97             :               krb5_error_code error_code,
      98             :               const char *e_text,
      99             :               const krb5_data *e_data,
     100             :               const krb5_principal client,
     101             :               const krb5_principal server,
     102             :               time_t *client_time,
     103             :               int *client_usec,
     104             :               krb5_data *reply)
     105             : {
     106       36193 :     const PrincipalName *client_name = NULL;
     107       36193 :     const Realm *client_realm = NULL;
     108             : 
     109       36193 :     if (client) {
     110       34902 :         client_realm = &client->realm;
     111       34902 :         client_name = &client->name;
     112             :     }
     113             : 
     114       36193 :     return krb5_mk_error_ext(context, error_code, e_text, e_data,
     115             :                              server, client_name, client_realm,
     116             :                              client_time, client_usec, reply);
     117             : }