203 lines
4.8 KiB
C
203 lines
4.8 KiB
C
/*
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* Copyright (c) 2006 - 2007 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 "hx_locl.h"
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RCSID("$Id: peer.c 22345 2007-12-26 19:03:51Z lha $");
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/**
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* @page page_peer Hx509 crypto selecting functions
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*
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* Peer info structures are used togeter with hx509_crypto_select() to
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* select the best avaible crypto algorithm to use.
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*
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* See the library functions here: @ref hx509_peer
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*/
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/**
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* Allocate a new peer info structure an init it to default values.
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*
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* @param context A hx509 context.
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* @param peer return an allocated peer, free with hx509_peer_info_free().
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*
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* @return An hx509 error code, see hx509_get_error_string().
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*
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* @ingroup hx509_peer
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*/
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int
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hx509_peer_info_alloc(hx509_context context, hx509_peer_info *peer)
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{
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*peer = calloc(1, sizeof(**peer));
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if (*peer == NULL) {
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hx509_set_error_string(context, 0, ENOMEM, "out of memory");
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return ENOMEM;
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}
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return 0;
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}
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static void
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free_cms_alg(hx509_peer_info peer)
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{
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if (peer->val) {
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size_t i;
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for (i = 0; i < peer->len; i++)
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free_AlgorithmIdentifier(&peer->val[i]);
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free(peer->val);
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peer->val = NULL;
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peer->len = 0;
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}
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}
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/**
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* Free a peer info structure.
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*
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* @param peer peer info to be freed.
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*
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* @ingroup hx509_peer
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*/
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void
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hx509_peer_info_free(hx509_peer_info peer)
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{
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if (peer == NULL)
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return;
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if (peer->cert)
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hx509_cert_free(peer->cert);
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free_cms_alg(peer);
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memset(peer, 0, sizeof(*peer));
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free(peer);
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}
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/**
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* Set the certificate that remote peer is using.
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*
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* @param peer peer info to update
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* @param cert cerificate of the remote peer.
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*
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* @return An hx509 error code, see hx509_get_error_string().
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*
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* @ingroup hx509_peer
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*/
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int
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hx509_peer_info_set_cert(hx509_peer_info peer,
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hx509_cert cert)
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{
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if (peer->cert)
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hx509_cert_free(peer->cert);
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peer->cert = hx509_cert_ref(cert);
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return 0;
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}
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/**
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* Set the algorithms that the peer supports.
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*
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* @param context A hx509 context.
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* @param peer the peer to set the new algorithms for
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* @param val array of supported AlgorithmsIdentiers
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* @param len length of array val.
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*
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* @return An hx509 error code, see hx509_get_error_string().
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*
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* @ingroup hx509_peer
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*/
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int
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hx509_peer_info_set_cms_algs(hx509_context context,
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hx509_peer_info peer,
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const AlgorithmIdentifier *val,
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size_t len)
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{
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size_t i;
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free_cms_alg(peer);
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peer->val = calloc(len, sizeof(*peer->val));
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if (peer->val == NULL) {
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peer->len = 0;
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hx509_set_error_string(context, 0, ENOMEM, "out of memory");
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return ENOMEM;
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}
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peer->len = len;
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for (i = 0; i < len; i++) {
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int ret;
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ret = copy_AlgorithmIdentifier(&val[i], &peer->val[i]);
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if (ret) {
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hx509_clear_error_string(context);
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free_cms_alg(peer);
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return ret;
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}
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}
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return 0;
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}
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#if 0
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/*
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* S/MIME
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*/
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int
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hx509_peer_info_parse_smime(hx509_peer_info peer,
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const heim_octet_string *data)
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{
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return 0;
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}
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int
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hx509_peer_info_unparse_smime(hx509_peer_info peer,
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heim_octet_string *data)
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{
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return 0;
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}
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/*
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* For storing hx509_peer_info to be able to cache them.
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*/
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int
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hx509_peer_info_parse(hx509_peer_info peer,
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const heim_octet_string *data)
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{
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return 0;
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}
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int
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hx509_peer_info_unparse(hx509_peer_info peer,
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heim_octet_string *data)
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{
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return 0;
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}
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#endif
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