1 /* $NetBSD: mk_error.c,v 1.1.1.2 2014/04/24 12:45:50 pettai Exp $ */
2
3 /*
4 * Copyright (c) 1997 - 2003 Kungliga Tekniska Högskolan
5 * (Royal Institute of Technology, Stockholm, Sweden).
6 * All rights reserved.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 *
12 * 1. Redistributions of source code must retain the above copyright
13 * notice, this list of conditions and the following disclaimer.
14 *
15 * 2. Redistributions in binary form must reproduce the above copyright
16 * notice, this list of conditions and the following disclaimer in the
17 * documentation and/or other materials provided with the distribution.
18 *
19 * 3. Neither the name of the Institute nor the names of its contributors
20 * may be used to endorse or promote products derived from this software
21 * without specific prior written permission.
22 *
23 * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
24 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
25 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
26 * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
27 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
28 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
29 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
31 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
32 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
33 * SUCH DAMAGE.
34 */
35
36 #include "krb5_locl.h"
37
38 KRB5_LIB_FUNCTION krb5_error_code KRB5_LIB_CALL
krb5_mk_error(krb5_context context,krb5_error_code error_code,const char * e_text,const krb5_data * e_data,const krb5_principal client,const krb5_principal server,time_t * client_time,int * client_usec,krb5_data * reply)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 const char *e_text2 = NULL;
50 KRB_ERROR msg;
51 krb5_timestamp sec;
52 int32_t usec;
53 size_t len = 0;
54 krb5_error_code ret = 0;
55
56 krb5_us_timeofday (context, &sec, &usec);
57
58 memset(&msg, 0, sizeof(msg));
59 msg.pvno = 5;
60 msg.msg_type = krb_error;
61 msg.stime = sec;
62 msg.susec = usec;
63 msg.ctime = client_time;
64 msg.cusec = client_usec;
65 /* Make sure we only send `protocol' error codes */
66 if(error_code < KRB5KDC_ERR_NONE || error_code >= KRB5_ERR_RCSID) {
67 if(e_text == NULL)
68 e_text = e_text2 = krb5_get_error_message(context, error_code);
69 error_code = KRB5KRB_ERR_GENERIC;
70 }
71 msg.error_code = error_code - KRB5KDC_ERR_NONE;
72 if (e_text)
73 msg.e_text = rk_UNCONST(&e_text);
74 if (e_data)
75 msg.e_data = rk_UNCONST(e_data);
76 if(server){
77 msg.realm = server->realm;
78 msg.sname = server->name;
79 }else{
80 static char unspec[] = "<unspecified realm>";
81 msg.realm = unspec;
82 }
83 if(client){
84 msg.crealm = &client->realm;
85 msg.cname = &client->name;
86 }
87
88 ASN1_MALLOC_ENCODE(KRB_ERROR, reply->data, reply->length, &msg, &len, ret);
89 if (e_text2)
90 krb5_free_error_message(context, e_text2);
91 if (ret)
92 return ret;
93 if(reply->length != len)
94 krb5_abortx(context, "internal error in ASN.1 encoder");
95 return 0;
96 }
97