241 lines
6.2 KiB
C
241 lines
6.2 KiB
C
/*
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* Copyright (c) 1999 - 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/gsskrb5_locl.h"
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RCSID("$Id: export_sec_context.c 19031 2006-11-13 18:02:57Z lha $");
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OM_uint32
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_gsskrb5_export_sec_context (
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OM_uint32 * minor_status,
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gss_ctx_id_t * context_handle,
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gss_buffer_t interprocess_token
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)
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{
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krb5_context context;
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const gsskrb5_ctx ctx = (const gsskrb5_ctx) *context_handle;
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krb5_storage *sp;
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krb5_auth_context ac;
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OM_uint32 ret = GSS_S_COMPLETE;
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krb5_data data;
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gss_buffer_desc buffer;
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int flags;
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OM_uint32 minor;
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krb5_error_code kret;
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GSSAPI_KRB5_INIT (&context);
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HEIMDAL_MUTEX_lock(&ctx->ctx_id_mutex);
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if (!(ctx->flags & GSS_C_TRANS_FLAG)) {
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HEIMDAL_MUTEX_unlock(&ctx->ctx_id_mutex);
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*minor_status = 0;
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return GSS_S_UNAVAILABLE;
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}
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sp = krb5_storage_emem ();
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if (sp == NULL) {
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HEIMDAL_MUTEX_unlock(&ctx->ctx_id_mutex);
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*minor_status = ENOMEM;
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return GSS_S_FAILURE;
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}
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ac = ctx->auth_context;
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/* flagging included fields */
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flags = 0;
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if (ac->local_address)
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flags |= SC_LOCAL_ADDRESS;
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if (ac->remote_address)
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flags |= SC_REMOTE_ADDRESS;
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if (ac->keyblock)
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flags |= SC_KEYBLOCK;
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if (ac->local_subkey)
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flags |= SC_LOCAL_SUBKEY;
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if (ac->remote_subkey)
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flags |= SC_REMOTE_SUBKEY;
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kret = krb5_store_int32 (sp, flags);
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if (kret) {
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*minor_status = kret;
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goto failure;
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}
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/* marshall auth context */
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kret = krb5_store_int32 (sp, ac->flags);
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if (kret) {
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*minor_status = kret;
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goto failure;
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}
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if (ac->local_address) {
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kret = krb5_store_address (sp, *ac->local_address);
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if (kret) {
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*minor_status = kret;
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goto failure;
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}
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}
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if (ac->remote_address) {
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kret = krb5_store_address (sp, *ac->remote_address);
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if (kret) {
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*minor_status = kret;
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goto failure;
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}
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}
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kret = krb5_store_int16 (sp, ac->local_port);
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if (kret) {
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*minor_status = kret;
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goto failure;
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}
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kret = krb5_store_int16 (sp, ac->remote_port);
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if (kret) {
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*minor_status = kret;
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goto failure;
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}
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if (ac->keyblock) {
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kret = krb5_store_keyblock (sp, *ac->keyblock);
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if (kret) {
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*minor_status = kret;
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goto failure;
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}
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}
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if (ac->local_subkey) {
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kret = krb5_store_keyblock (sp, *ac->local_subkey);
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if (kret) {
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*minor_status = kret;
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goto failure;
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}
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}
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if (ac->remote_subkey) {
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kret = krb5_store_keyblock (sp, *ac->remote_subkey);
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if (kret) {
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*minor_status = kret;
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goto failure;
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}
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}
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kret = krb5_store_int32 (sp, ac->local_seqnumber);
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if (kret) {
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*minor_status = kret;
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goto failure;
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}
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kret = krb5_store_int32 (sp, ac->remote_seqnumber);
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if (kret) {
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*minor_status = kret;
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goto failure;
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}
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kret = krb5_store_int32 (sp, ac->keytype);
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if (kret) {
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*minor_status = kret;
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goto failure;
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}
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kret = krb5_store_int32 (sp, ac->cksumtype);
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if (kret) {
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*minor_status = kret;
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goto failure;
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}
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/* names */
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ret = _gsskrb5_export_name (minor_status,
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(gss_name_t)ctx->source, &buffer);
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if (ret)
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goto failure;
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data.data = buffer.value;
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data.length = buffer.length;
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kret = krb5_store_data (sp, data);
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_gsskrb5_release_buffer (&minor, &buffer);
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if (kret) {
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*minor_status = kret;
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goto failure;
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}
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ret = _gsskrb5_export_name (minor_status,
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(gss_name_t)ctx->target, &buffer);
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if (ret)
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goto failure;
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data.data = buffer.value;
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data.length = buffer.length;
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ret = GSS_S_FAILURE;
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kret = krb5_store_data (sp, data);
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_gsskrb5_release_buffer (&minor, &buffer);
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if (kret) {
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*minor_status = kret;
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goto failure;
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}
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kret = krb5_store_int32 (sp, ctx->flags);
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if (kret) {
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*minor_status = kret;
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goto failure;
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}
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kret = krb5_store_int32 (sp, ctx->more_flags);
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if (kret) {
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*minor_status = kret;
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goto failure;
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}
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kret = krb5_store_int32 (sp, ctx->lifetime);
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if (kret) {
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*minor_status = kret;
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goto failure;
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}
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kret = _gssapi_msg_order_export(sp, ctx->order);
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if (kret ) {
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*minor_status = kret;
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goto failure;
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}
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kret = krb5_storage_to_data (sp, &data);
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krb5_storage_free (sp);
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if (kret) {
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HEIMDAL_MUTEX_unlock(&ctx->ctx_id_mutex);
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*minor_status = kret;
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return GSS_S_FAILURE;
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}
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interprocess_token->length = data.length;
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interprocess_token->value = data.data;
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HEIMDAL_MUTEX_unlock(&ctx->ctx_id_mutex);
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ret = _gsskrb5_delete_sec_context (minor_status, context_handle,
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GSS_C_NO_BUFFER);
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if (ret != GSS_S_COMPLETE)
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_gsskrb5_release_buffer (NULL, interprocess_token);
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*minor_status = 0;
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return ret;
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failure:
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HEIMDAL_MUTEX_unlock(&ctx->ctx_id_mutex);
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krb5_storage_free (sp);
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return ret;
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}
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