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/*
* Copyright (c) 1999 - 2000 Kungliga Tekniska Högskolan
* (Royal Institute of Technology, Stockholm, Sweden).
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* 3. Neither the name of the Institute nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#include "gssapi_locl.h"
RCSID("$Id: import_sec_context.c,v 1.2 2000/02/12 21:26:00 assar Exp $");
OM_uint32
gss_import_sec_context (
OM_uint32 * minor_status,
const gss_buffer_t interprocess_token,
gss_ctx_id_t * context_handle
)
{
OM_uint32 ret = GSS_S_FAILURE;
krb5_error_code kret;
krb5_storage *sp;
krb5_auth_context ac;
krb5_address local, remote;
krb5_address *localp, *remotep;
krb5_data data;
gss_buffer_desc buffer;
krb5_keyblock keyblock;
size_t sz;
int32_t tmp;
int32_t flags;
gssapi_krb5_init ();
sp = krb5_storage_from_mem (interprocess_token->value,
interprocess_token->length);
if (sp == NULL) {
*minor_status = ENOMEM;
return GSS_S_FAILURE;
}
*context_handle = malloc(sizeof(**context_handle));
if (*context_handle == NULL) {
*minor_status = ENOMEM;
krb5_storage_free (sp);
return GSS_S_FAILURE;
}
kret = krb5_auth_con_init (gssapi_krb5_context,
&(*context_handle)->auth_context);
if (kret) {
*minor_status = kret;
ret = GSS_S_FAILURE;
goto failure;
}
/* flags */
krb5_ret_int32 (sp, &flags);
/* retrieve the auth context */
ac = (*context_handle)->auth_context;
krb5_ret_int32 (sp, &ac->flags);
if (flags & SC_LOCAL_ADDRESS)
krb5_ret_address (sp, localp = &local);
else
localp = NULL;
if (flags & SC_REMOTE_ADDRESS)
krb5_ret_address (sp, remotep = &remote);
else
remotep = NULL;
krb5_auth_con_setaddrs (gssapi_krb5_context, ac, localp, remotep);
if (localp)
krb5_free_address (gssapi_krb5_context, localp);
if (remotep)
krb5_free_address (gssapi_krb5_context, remotep);
krb5_ret_int16 (sp, &ac->local_port);
krb5_ret_int16 (sp, &ac->remote_port);
if (flags & SC_KEYBLOCK) {
krb5_ret_keyblock (sp, &keyblock);
krb5_auth_con_setkey (gssapi_krb5_context, ac, &keyblock);
krb5_free_keyblock_contents (gssapi_krb5_context, &keyblock);
}
if (flags & SC_LOCAL_SUBKEY) {
krb5_ret_keyblock (sp, &keyblock);
krb5_auth_con_setlocalsubkey (gssapi_krb5_context, ac, &keyblock);
krb5_free_keyblock_contents (gssapi_krb5_context, &keyblock);
}
if (flags & SC_REMOTE_SUBKEY) {
krb5_ret_keyblock (sp, &keyblock);
krb5_auth_con_setremotesubkey (gssapi_krb5_context, ac, &keyblock);
krb5_free_keyblock_contents (gssapi_krb5_context, &keyblock);
}
krb5_ret_int32 (sp, &ac->local_seqnumber);
krb5_ret_int32 (sp, &ac->remote_seqnumber);
#if 0
krb5_ret_data (sp, &data);
ac->authenticator = malloc (sizeof (*ac->authenticator));
if (ac->authenticator == NULL) {
*minor_status = ENOMEM;
ret = GSS_S_FAILURE;
goto failure;
}
kret = decode_Authenticator (data.data, data.length,
ac->authenticator, &sz);
krb5_data_free (&data);
if (kret) {
*minor_status = kret;
ret = GSS_S_FAILURE;
goto failure;
}
#endif
krb5_ret_int32 (sp, &tmp);
ac->keytype = tmp;
krb5_ret_int32 (sp, &tmp);
ac->cksumtype = tmp;
/* names */
krb5_ret_data (sp, &data);
buffer.value = data.data;
buffer.length = data.length;
gss_import_name (minor_status, &buffer, GSS_C_NO_OID,
&(*context_handle)->source);
krb5_data_free (&data);
krb5_ret_data (sp, &data);
buffer.value = data.data;
buffer.length = data.length;
gss_import_name (minor_status, &buffer, GSS_C_NO_OID,
&(*context_handle)->target);
krb5_data_free (&data);
krb5_ret_int32 (sp, &tmp);
(*context_handle)->flags = tmp;
krb5_ret_int32 (sp, &tmp);
(*context_handle)->more_flags = tmp;
(*context_handle)->ticket = NULL;
return GSS_S_COMPLETE;
failure:
krb5_auth_con_free (gssapi_krb5_context,
(*context_handle)->auth_context);
free (*context_handle);
*context_handle = GSS_C_NO_CONTEXT;
return ret;
}
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