6850d6a65f
most of these warnings are not problems because of ample use of abort() calls. However, the large number of warnings makes it difficult to identify real problems. Initialize the variables to shut up the compilers. Change-Id: I8477c11b17c7b6a7d9074c721fdd2d7303b186a8
123 lines
4.0 KiB
C
123 lines
4.0 KiB
C
/*
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* Copyright (c) 1997 - 2003 Kungliga Tekniska Högskolan
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* (Royal Institute of Technology, Stockholm, Sweden).
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* 3. Neither the name of the Institute nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include "krb5_locl.h"
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KRB5_LIB_FUNCTION krb5_error_code KRB5_LIB_CALL
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krb5_mk_rep(krb5_context context,
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krb5_auth_context auth_context,
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krb5_data *outbuf)
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{
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krb5_error_code ret;
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AP_REP ap;
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EncAPRepPart body;
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u_char *buf = NULL;
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size_t buf_size;
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size_t len = 0;
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krb5_crypto crypto;
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ap.pvno = 5;
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ap.msg_type = krb_ap_rep;
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memset (&body, 0, sizeof(body));
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body.ctime = auth_context->authenticator->ctime;
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body.cusec = auth_context->authenticator->cusec;
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if (auth_context->flags & KRB5_AUTH_CONTEXT_USE_SUBKEY) {
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if (auth_context->local_subkey == NULL) {
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ret = krb5_auth_con_generatelocalsubkey(context,
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auth_context,
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auth_context->keyblock);
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if(ret) {
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free_EncAPRepPart(&body);
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return ret;
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}
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}
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ret = krb5_copy_keyblock(context, auth_context->local_subkey,
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&body.subkey);
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if (ret) {
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free_EncAPRepPart(&body);
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krb5_set_error_message(context, ENOMEM,
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N_("malloc: out of memory", ""));
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return ENOMEM;
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}
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} else
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body.subkey = NULL;
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if (auth_context->flags & KRB5_AUTH_CONTEXT_DO_SEQUENCE) {
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if(auth_context->local_seqnumber == 0)
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krb5_generate_seq_number (context,
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auth_context->keyblock,
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&auth_context->local_seqnumber);
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ALLOC(body.seq_number, 1);
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if (body.seq_number == NULL) {
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krb5_set_error_message(context, ENOMEM, "malloc: out of memory");
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free_EncAPRepPart(&body);
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return ENOMEM;
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}
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*(body.seq_number) = auth_context->local_seqnumber;
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} else
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body.seq_number = NULL;
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ap.enc_part.etype = auth_context->keyblock->keytype;
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ap.enc_part.kvno = NULL;
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ASN1_MALLOC_ENCODE(EncAPRepPart, buf, buf_size, &body, &len, ret);
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free_EncAPRepPart (&body);
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if(ret)
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return ret;
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if (buf_size != len)
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krb5_abortx(context, "internal error in ASN.1 encoder");
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ret = krb5_crypto_init(context, auth_context->keyblock,
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0 /* ap.enc_part.etype */, &crypto);
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if (ret) {
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free (buf);
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return ret;
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}
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ret = krb5_encrypt (context,
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crypto,
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KRB5_KU_AP_REQ_ENC_PART,
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buf + buf_size - len,
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len,
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&ap.enc_part.cipher);
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krb5_crypto_destroy(context, crypto);
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free(buf);
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if (ret)
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return ret;
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ASN1_MALLOC_ENCODE(AP_REP, outbuf->data, outbuf->length, &ap, &len, ret);
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if (ret == 0 && outbuf->length != len)
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krb5_abortx(context, "internal error in ASN.1 encoder");
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free_AP_REP (&ap);
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return ret;
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}
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