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 36 RCSID("$Id: mk_error.c 15457 2005-06-16 21:16:40Z lha $"); 37 38 krb5_error_code KRB5_LIB_FUNCTION 39 krb5_mk_error(krb5_context context, 40 krb5_error_code error_code, 41 const char *e_text, 42 const krb5_data *e_data, 43 const krb5_principal client, 44 const krb5_principal server, 45 time_t *client_time, 46 int *client_usec, 47 krb5_data *reply) 48 { 49 KRB_ERROR msg; 50 krb5_timestamp sec; 51 int32_t usec; 52 size_t len; 53 krb5_error_code ret = 0; 54 55 krb5_us_timeofday (context, &sec, &usec); 56 57 memset(&msg, 0, sizeof(msg)); 58 msg.pvno = 5; 59 msg.msg_type = krb_error; 60 msg.stime = sec; 61 msg.susec = usec; 62 msg.ctime = client_time; 63 msg.cusec = client_usec; 64 /* Make sure we only send `protocol' error codes */ 65 if(error_code < KRB5KDC_ERR_NONE || error_code >= KRB5_ERR_RCSID) { 66 if(e_text == NULL) 67 e_text = krb5_get_err_text(context, error_code); 68 error_code = KRB5KRB_ERR_GENERIC; 69 } 70 msg.error_code = error_code - KRB5KDC_ERR_NONE; 71 if (e_text) 72 msg.e_text = rk_UNCONST(&e_text); 73 if (e_data) 74 msg.e_data = rk_UNCONST(e_data); 75 if(server){ 76 msg.realm = server->realm; 77 msg.sname = server->name; 78 }else{ 79 msg.realm = "<unspecified realm>"; 80 } 81 if(client){ 82 msg.crealm = &client->realm; 83 msg.cname = &client->name; 84 } 85 86 ASN1_MALLOC_ENCODE(KRB_ERROR, reply->data, reply->length, &msg, &len, ret); 87 if (ret) 88 return ret; 89 if(reply->length != len) 90 krb5_abortx(context, "internal error in ASN.1 encoder"); 91 return 0; 92 } 93