1/* 2 * Copyright (c) 1997 - 2003 Kungliga Tekniska H��gskolan 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 36krb5_error_code KRB5_LIB_FUNCTION 37krb5_mk_error(krb5_context context, 38 krb5_error_code error_code, 39 const char *e_text, 40 const krb5_data *e_data, 41 const krb5_principal client, 42 const krb5_principal server, 43 time_t *client_time, 44 int *client_usec, 45 krb5_data *reply) 46{ 47 KRB_ERROR msg; 48 krb5_timestamp sec; 49 int32_t usec; 50 size_t len; 51 krb5_error_code ret = 0; 52 53 krb5_us_timeofday (context, &sec, &usec); 54 55 memset(&msg, 0, sizeof(msg)); 56 msg.pvno = 5; 57 msg.msg_type = krb_error; 58 msg.stime = sec; 59 msg.susec = usec; 60 msg.ctime = client_time; 61 msg.cusec = client_usec; 62 /* Make sure we only send `protocol' error codes */ 63 if(error_code < KRB5KDC_ERR_NONE || error_code >= KRB5_ERR_RCSID) { 64 if(e_text == NULL) 65 e_text = krb5_get_err_text(context, error_code); 66 error_code = KRB5KRB_ERR_GENERIC; 67 } 68 msg.error_code = error_code - KRB5KDC_ERR_NONE; 69 if (e_text) 70 msg.e_text = rk_UNCONST(&e_text); 71 if (e_data) 72 msg.e_data = rk_UNCONST(e_data); 73 if(server){ 74 msg.realm = server->realm; 75 msg.sname = server->name; 76 }else{ 77 msg.realm = "<unspecified realm>"; 78 } 79 if(client){ 80 msg.crealm = &client->realm; 81 msg.cname = &client->name; 82 } 83 84 ASN1_MALLOC_ENCODE(KRB_ERROR, reply->data, reply->length, &msg, &len, ret); 85 if (ret) 86 return ret; 87 if(reply->length != len) 88 krb5_abortx(context, "internal error in ASN.1 encoder"); 89 return 0; 90} 91