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/*************************************************************************
* Copyright 2009-2012 Eucalyptus Systems, Inc.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; version 3 of the License.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see http://www.gnu.org/licenses/.
*
* Please contact Eucalyptus Systems, Inc., 6755 Hollister Ave., Goleta
* CA 93117, USA or visit http://www.eucalyptus.com/licenses/ if you need
* additional information or have any questions.
*
* This file may incorporate work covered under the following copyright
* and permission notice:
*
* Software License Agreement (BSD License)
*
* Copyright (c) 2008, Regents of the University of California
* All rights reserved.
*
* Redistribution and use of this software in source and binary forms,
* with or without modification, are permitted provided that the
* following conditions are met:
*
* Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 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.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS 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
* COPYRIGHT OWNER 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. USERS OF THIS SOFTWARE ACKNOWLEDGE
* THE POSSIBLE PRESENCE OF OTHER OPEN SOURCE LICENSED MATERIAL,
* COPYRIGHTED MATERIAL OR PATENTED MATERIAL IN THIS SOFTWARE,
* AND IF ANY SUCH MATERIAL IS DISCOVERED THE PARTY DISCOVERING
* IT MAY INFORM DR. RICH WOLSKI AT THE UNIVERSITY OF CALIFORNIA,
* SANTA BARBARA WHO WILL THEN ASCERTAIN THE MOST APPROPRIATE REMEDY,
* WHICH IN THE REGENTS' DISCRETION MAY INCLUDE, WITHOUT LIMITATION,
* REPLACEMENT OF THE CODE SO IDENTIFIED, LICENSING OF THE CODE SO
* IDENTIFIED, OR WITHDRAWAL OF THE CODE CAPABILITY TO THE EXTENT
* NEEDED TO COMPLY WITH ANY SUCH LICENSES OR RIGHTS.
************************************************************************/

/* BRIEF EXAMPLE MSG:
<soapenv:Envelope>.
<soapenv:Header>
[..snip..]
<wsse:Security>
[..snip..]
<wsse:BinarySecurityToken xmlns:wsu="http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-utility-1.0.xsd"
EncodingType="http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-soap-message-security-1.0#Base64Binary"
ValueType="http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-x509-token-profile-1.0#X509v3"
wsu:Id="CertId-469">[..snip..]</wsse:BinarySecurityToken>
[..snip..]
<ds:Signature>
<ds:SignedInfo>
<!-- <ref-id> points to a signed element. Body, Timestamp, To, Action, and MessageId element are expected to be signed-->
<ds:Reference URI="#<ref-id>>
[..snip..]
</ds:Reference>
</ds:SignedInfo>
<ds:KeyInfo Id="KeyId-374652">
<wsse:SecurityTokenReference xmlns:wsu="http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-utility-1.0.xsd" wsu:Id="STRId-22112351">
<!-- this thing points to the wsse:BinarySecurityToken above -->
<wsse:Reference URI="#CertId-469" ValueType="http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-x509-token-profile-1.0#X509v3"/>
</wsse:SecurityTokenReference>
</ds:KeyInfo>
</ds:Signature>
</wsse:Security>
</soapenv:Header>
<soapenv:Body>...</soapenv:Body>
</soapenv:Envelope>.
*/

#include "oxs_axiom.h"
#include "oxs_x509_cert.h"
#include "oxs_key_mgr.h"
#include "rampart_handler_util.h"
#include "rampart_sec_processed_result.h"
#include "rampart_error.h"
#include "axis2_op_ctx.h"
#include "rampart_context.h"
#include "rampart_constants.h"
#include "axis2_addr.h"
#include "axiom_util.h"
#include "rampart_timestamp_token.h"

#include <neethi_policy.h>
#include <neethi_util.h>
#include <axutil_utils.h>
#include <axis2_client.h>
#include <axis2_stub.h>

#include "misc.h" /* check_file, logprintf */
#include "fault.h" // log_eucafault
#include "euca_axis.h"

#define NO_U_FAIL(x) do{ \
AXIS2_LOG_ERROR(env->log, AXIS2_LOG_SI, "[rampart][eucalyptus-verify] " #x );\
AXIS2_ERROR_SET(env->error, RAMPART_ERROR_FAILED_AUTHENTICATION, AXIS2_FAILURE);\
return AXIS2_FAILURE; \
}while(0)

static void throw_fault(void)
{
    init_eucafaults(euca_this_component_name);
    log_eucafault("1009", "sender", euca_client_component_name, "receiver", euca_this_component_name, "keys_dir",
                  "$EUCALYPTUS/var/lib/eucalyptus/keys/", NULL);
}

axis2_status_t __euca_authenticate(const axutil_env_t * env, axis2_msg_ctx_t * out_msg_ctx, axis2_op_ctx_t * op_ctx)
{
    //***** First get the message context before doing anything dumb w/ a NULL pointer *****/
    axis2_msg_ctx_t *msg_ctx = NULL; //<--- incoming msg context, it is NULL, see?
    msg_ctx = axis2_op_ctx_get_msg_ctx(op_ctx, env, AXIS2_WSDL_MESSAGE_LABEL_IN);

    //***** Print everything from the security results, just for testing now *****//
    rampart_context_t *rampart_context = NULL;
    axutil_property_t *property = NULL;

    property = axis2_msg_ctx_get_property(msg_ctx, env, RAMPART_CONTEXT);
    if (property) {
        rampart_context = (rampart_context_t *) axutil_property_get_value(property, env);
        // AXIS2_LOG_CRITICAL(env->log,AXIS2_LOG_SI," ======== PRINTING PROCESSED WSSEC TOKENS ======== ");
        rampart_print_security_processed_results_set(env, msg_ctx);
    }
    //***** Extract Security Node from header from enveloper from msg_ctx *****//
    axiom_soap_envelope_t *soap_envelope = NULL;
    axiom_soap_header_t *soap_header = NULL;
    axiom_node_t *sec_node = NULL;

    soap_envelope = axis2_msg_ctx_get_soap_envelope(msg_ctx, env);
    if (!soap_envelope)
        NO_U_FAIL("SOAP envelope cannot be found.");
    soap_header = axiom_soap_envelope_get_header(soap_envelope, env);
    if (!soap_header)
        NO_U_FAIL("SOAP header cannot be found.");
    sec_node = rampart_get_security_header(env, msg_ctx, soap_header); // <---- here it is!
    if (!sec_node)
        NO_U_FAIL("No node wsse:Security -- required: ws-security");

    //***** Find the wsse:Reference to the BinarySecurityToken *****//
    //** Path is: Security/
    //** *sec_node must be non-NULL, kkthx **//
    axiom_node_t *sig_node = NULL;
    axiom_node_t *key_info_node = NULL;
    axiom_node_t *sec_token_ref_node = NULL;
  /** the ds:Signature node **/
    sig_node = oxs_axiom_get_first_child_node_by_name(env, sec_node, OXS_NODE_SIGNATURE, OXS_DSIG_NS, OXS_DS);
    if (!sig_node)
        NO_U_FAIL("No node ds:Signature -- required: signature");
  /** the ds:KeyInfo **/
    key_info_node = oxs_axiom_get_first_child_node_by_name(env, sig_node, OXS_NODE_KEY_INFO, OXS_DSIG_NS, NULL);
    if (!key_info_node)
        NO_U_FAIL("No node ds:KeyInfo -- required: signature key");
  /** the wsse:SecurityTokenReference **/
    sec_token_ref_node = oxs_axiom_get_first_child_node_by_name(env, key_info_node, OXS_NODE_SECURITY_TOKEN_REFRENCE, OXS_WSSE_XMLNS, NULL);
    if (!sec_token_ref_node)
        NO_U_FAIL("No node wsse:SecurityTokenReference -- required: signing token");
    //** in theory this is the branching point for supporting all kinds of tokens -- we only do BST Direct Reference **/

    //***** Find the wsse:Reference to the BinarySecurityToken *****//
    //** *sec_token_ref_node must be non-NULL **/
    axis2_char_t *ref = NULL;
    axis2_char_t *ref_id = NULL;
    axiom_node_t *token_ref_node = NULL;
    axiom_node_t *bst_node = NULL;
  /** the wsse:Reference node **/
    token_ref_node = oxs_axiom_get_first_child_node_by_name(env, sec_token_ref_node, OXS_NODE_REFERENCE, OXS_WSSE_XMLNS, NULL);
  /** pull out the name of the BST node **/
    ref = oxs_token_get_reference(env, token_ref_node);
    ref_id = axutil_string_substring_starting_at(axutil_strdup(env, ref), 1);
  /** get the wsse:BinarySecurityToken used to sign the message **/
    bst_node = oxs_axiom_get_node_by_id(env, sec_node, "Id", ref_id, OXS_WSU_XMLNS);
    if (!bst_node) {
        oxs_error(env, OXS_ERROR_LOCATION, OXS_ERROR_ELEMENT_FAILED, "Error retrieving elementwith ID=%s", ref_id);
        NO_U_FAIL("Cant find the required node");
    }
    //***** Find the wsse:Reference to the BinarySecurityToken *****//
    //** *bst_node must be non-NULL **/
    axis2_char_t *data = NULL;
    oxs_x509_cert_t *_cert = NULL;
    oxs_x509_cert_t *recv_cert = NULL;
    axis2_char_t *file_name = NULL;
    axis2_char_t *recv_x509_buf = NULL;
    axis2_char_t *msg_x509_buf = NULL;

  /** pull out the data from the BST **/
    data = oxs_axiom_get_node_content(env, bst_node);
  /** create an oxs_X509_cert **/
    _cert = oxs_key_mgr_load_x509_cert_from_string(env, data);
    if (_cert) {
        //***** FINALLY -- we have the certificate used to sign the message. authenticate it HERE *****//
        msg_x509_buf = oxs_x509_cert_get_data(_cert, env);
        if (!msg_x509_buf)
            NO_U_FAIL("OMG WHAT NOW?!");
        /*
recv_x509_buf = (axis2_char_t *)rampart_context_get_receiver_certificate(rampart_context, env);
if(recv_x509_buf)
recv_cert = oxs_key_mgr_load_x509_cert_from_string(env, recv_x509_buf);
else
{
file_name = rampart_context_get_receiver_certificate_file(rampart_context, env);
if(!file_name) NO_U_FAIL("Policy for the service is incorrect -- ReceiverCertificate is not set!!");
if (check_file(file_name)) NO_U_FAIL("No cert file ($EUCALYPTUS/var/lib/eucalyptus/keys/cloud-cert.pem) found, failing");
recv_cert = oxs_key_mgr_load_x509_cert_from_pem_file(env, file_name);
}
*/

        file_name = rampart_context_get_receiver_certificate_file(rampart_context, env);
        if (!file_name)
            NO_U_FAIL("Policy for the service is incorrect -- ReceiverCertificate is not set!!");
        if (check_file(file_name))
            NO_U_FAIL("No cert file ($EUCALYPTUS/var/lib/eucalyptus/keys/cloud-cert.pem) found, failing");
        recv_cert = oxs_key_mgr_load_x509_cert_from_pem_file(env, file_name);

        if (recv_cert) {
            recv_x509_buf = oxs_x509_cert_get_data(recv_cert, env);
        } else {
            throw_fault();
            NO_U_FAIL("could not populate receiver certificate");
        }

        if (axutil_strcmp(recv_x509_buf, msg_x509_buf) != 0) {
            AXIS2_LOG_CRITICAL(env->log, AXIS2_LOG_SI, " --------- Received x509 certificate value ---------");
            AXIS2_LOG_CRITICAL(env->log, AXIS2_LOG_SI, msg_x509_buf);
            AXIS2_LOG_CRITICAL(env->log, AXIS2_LOG_SI, " --------- Local x509 certificate value! ---------");
            AXIS2_LOG_CRITICAL(env->log, AXIS2_LOG_SI, recv_x509_buf);
            AXIS2_LOG_CRITICAL(env->log, AXIS2_LOG_SI, " ---------------------------------------------------");
            throw_fault();
            NO_U_FAIL("The certificate specified is invalid!");
        }
        if (verify_references(sig_node, env, out_msg_ctx, soap_envelope, rampart_context) == AXIS2_FAILURE) {
            return AXIS2_FAILURE;
        }

    } else {
        throw_fault();
        oxs_error(env, OXS_ERROR_LOCATION, OXS_ERROR_DEFAULT, "Cannot load certificate from string =%s", data);
        NO_U_FAIL("Failed to build certificate from BinarySecurityToken");
    }
    oxs_x509_cert_free(_cert, env);
    oxs_x509_cert_free(recv_cert, env);

    return AXIS2_SUCCESS;

}

/**
* Verifes that Body, Timestamp, To, Action, and MessageId elements are signed and located
* where expected by the application logic. Timestamp is checked for expiration regardless
* of its actual location.
*/
axis2_status_t verify_references(axiom_node_t * sig_node, const axutil_env_t * env, axis2_msg_ctx_t * msg_ctx, axiom_soap_envelope_t * envelope,
                                 rampart_context_t * rampart_context)
{
    axiom_node_t *si_node = NULL;
    axiom_node_t *ref_node = NULL;
    axis2_status_t status = AXIS2_SUCCESS;

    si_node = oxs_axiom_get_first_child_node_by_name(env, sig_node, OXS_NODE_SIGNEDINFO, OXS_DSIG_NS, OXS_DS);

    if (!si_node) {
        axis2_char_t *tmp = axiom_node_to_string(sig_node, env);
        AXIS2_LOG_DEBUG(env->log, AXIS2_LOG_SI, "[euca-rampart]sig = %s", tmp);
        NO_U_FAIL("Couldn't find SignedInfo!");
    }

    axutil_qname_t *qname = NULL;
    axiom_element_t *parent_elem = NULL;
    axiom_children_qname_iterator_t *qname_iter = NULL;

    parent_elem = axiom_node_get_data_element(si_node, env);
    if (!parent_elem) {
        NO_U_FAIL("Could not get Reference elem");
    }

    axis2_char_t *ref = NULL;
    axis2_char_t *ref_id = NULL;
    axiom_node_t *signed_node = NULL;
    axiom_node_t *envelope_node = NULL;

    short signed_elems[5] = { 0, 0, 0, 0, 0 };

    envelope_node = axiom_soap_envelope_get_base_node(envelope, env);

    qname = axutil_qname_create(env, OXS_NODE_REFERENCE, OXS_DSIG_NS, NULL);
    qname_iter = axiom_element_get_children_with_qname(parent_elem, env, qname, si_node);
    while (axiom_children_qname_iterator_has_next(qname_iter, env)) {
        ref_node = axiom_children_qname_iterator_next(qname_iter, env);
        axis2_char_t *txt = axiom_node_to_string(ref_node, env);

        /* get reference to a signed element */
        ref = oxs_token_get_reference(env, ref_node);
        if (ref == NULL || strlen(ref) == 0 || ref[0] != '#') {
            oxs_error(env, OXS_ERROR_LOCATION, OXS_ERROR_ELEMENT_FAILED, "Unsupported reference ID in %s", txt);
            status = AXIS2_FAILURE;
            break;
        }

        AXIS2_LOG_DEBUG(env->log, AXIS2_LOG_SI, "[euca-rampart] %s, ref = %s", txt, ref);

        /* get rid of '#' */
        ref_id = axutil_string_substring_starting_at(axutil_strdup(env, ref), 1);
        signed_node = oxs_axiom_get_node_by_id(env, envelope_node, OXS_ATTR_ID, ref_id, OXS_WSU_XMLNS);
        if (!signed_node) {
            oxs_error(env, OXS_ERROR_LOCATION, OXS_ERROR_ELEMENT_FAILED, "Error retrieving elementwith ID=%s", ref_id);
            status = AXIS2_FAILURE;
            break;
        }
        if (verify_node(signed_node, env, msg_ctx, ref, signed_elems, rampart_context)) {
            status = AXIS2_FAILURE;
            break;
        }
    }

    axutil_qname_free(qname, env);
    qname = NULL;

    if (status == AXIS2_FAILURE) {
        NO_U_FAIL("Failed to verify location of signed elements!");
    }

    /* This is needed to make sure that all security-critical elements are signed */
    for (int i = 0; i < 5; i++) {
        if (signed_elems[i] == 0) {
            NO_U_FAIL("Not all required elements are signed");
        }
    }

    return status;

}

/**
* Verifies XPath location of signed elements.
*/
int verify_node(axiom_node_t * signed_node, const axutil_env_t * env, axis2_msg_ctx_t * msg_ctx, axis2_char_t * ref, short *signed_elems,
                rampart_context_t * rampart_context)
{

    if (!axutil_strcmp(OXS_NODE_BODY, axiom_util_get_localname(signed_node, env))) {
        AXIS2_LOG_DEBUG(env->log, AXIS2_LOG_SI, "[euca-rampart] node %s is Body", ref);
        signed_elems[0] = 1;

        axiom_node_t *parent = axiom_node_get_parent(signed_node, env);
        if (axutil_strcmp(OXS_NODE_ENVELOPE, axiom_util_get_localname(parent, env))) {
            oxs_error(env, OXS_ERROR_LOCATION, OXS_ERROR_ELEMENT_FAILED, "Unexpected parent element for Body with ID = %s", ref);
            return 1;
        }

        parent = axiom_node_get_parent(parent, env);
        if (parent) {
            AXIS2_LOG_DEBUG(env->log, AXIS2_LOG_SI, "[euca-rampart] parent of Envelope = %s", axiom_node_to_string(parent, env));
            oxs_error(env, OXS_ERROR_LOCATION, OXS_ERROR_ELEMENT_FAILED, "Unexpected location of signed Body with ID = %s", ref);
            return 1;
        }

    } else if (!axutil_strcmp(RAMPART_SECURITY_TIMESTAMP, axiom_util_get_localname(signed_node, env))) {
        AXIS2_LOG_DEBUG(env->log, AXIS2_LOG_SI, "[euca-rampart] node %s is Timestamp", ref);
        signed_elems[1] = 1;

        /* Regardless of the location of the Timestamp, verify the one that is signed */
        if (AXIS2_FAILURE == rampart_timestamp_token_validate(env, msg_ctx, signed_node, rampart_context_get_clock_skew_buffer(rampart_context, env))) {
            oxs_error(env, OXS_ERROR_LOCATION, OXS_ERROR_ELEMENT_FAILED, "Validation failed for Timestamp with ID = %s", ref);
            return 1;
        }

    } else if (!axutil_strcmp(AXIS2_WSA_ACTION, axiom_util_get_localname(signed_node, env))) {
        AXIS2_LOG_DEBUG(env->log, AXIS2_LOG_SI, "[euca-rampart] node %s is Action", ref);
        signed_elems[2] = 1;

        if (verify_addr_hdr_elem_loc(signed_node, env, ref)) {
            oxs_error(env, OXS_ERROR_LOCATION, OXS_ERROR_ELEMENT_FAILED, "Validation failed for Action with ID = %s", ref);
            return 1;
        }

    } else if (!axutil_strcmp(AXIS2_WSA_TO, axiom_util_get_localname(signed_node, env))) {
        AXIS2_LOG_DEBUG(env->log, AXIS2_LOG_SI, "[euca-rampart] node %s is To", ref);
        signed_elems[3] = 1;

        if (verify_addr_hdr_elem_loc(signed_node, env, ref)) {
            oxs_error(env, OXS_ERROR_LOCATION, OXS_ERROR_ELEMENT_FAILED, "Validation failed for To with ID = %s", ref);
            return 1;
        }

    } else if (!axutil_strcmp(AXIS2_WSA_MESSAGE_ID, axiom_util_get_localname(signed_node, env))) {
        AXIS2_LOG_DEBUG(env->log, AXIS2_LOG_SI, "[euca-rampart] node %s is MessageId", ref);
        signed_elems[4] = 1;

        if (verify_addr_hdr_elem_loc(signed_node, env, ref)) {
            oxs_error(env, OXS_ERROR_LOCATION, OXS_ERROR_ELEMENT_FAILED, "Validation failed for MessageId with ID = %s", ref);
            return 1;
        }

    } else {
        AXIS2_LOG_WARNING(env->log, AXIS2_LOG_SI, "[euca-rampart] node %s is UNKNOWN", ref);
    }

    return 0;
}

/**
* Verify that an addressing element is located in <Envelope>/<Header>
*/
int verify_addr_hdr_elem_loc(axiom_node_t * signed_node, const axutil_env_t * env, axis2_char_t * ref)
{

    axiom_node_t *parent = axiom_node_get_parent(signed_node, env);

    if (axutil_strcmp(OXS_NODE_HEADER, axiom_util_get_localname(parent, env))) {
        AXIS2_LOG_DEBUG(env->log, AXIS2_LOG_SI, "[euca-rampart] parent of addressing elem is %s", axiom_node_to_string(parent, env));
        oxs_error(env, OXS_ERROR_LOCATION, OXS_ERROR_ELEMENT_FAILED, "Unexpected location of signed addressing elem with ID = %s", ref);
        return 1;

    }
    parent = axiom_node_get_parent(parent, env);

    if (axutil_strcmp(OXS_NODE_ENVELOPE, axiom_util_get_localname(parent, env))) {
        AXIS2_LOG_DEBUG(env->log, AXIS2_LOG_SI, "[euca-rampart] second parent of addressing elem is %s", axiom_node_to_string(parent, env));
        oxs_error(env, OXS_ERROR_LOCATION, OXS_ERROR_ELEMENT_FAILED, "Unexpected location of signed addressing elem with ID = %s", ref);
        return 1;

    }

    parent = axiom_node_get_parent(parent, env);
    if (parent) {
        AXIS2_LOG_DEBUG(env->log, AXIS2_LOG_SI, "[euca-rampart] parent of Envelope = %s", axiom_node_to_string(parent, env));
        oxs_error(env, OXS_ERROR_LOCATION, OXS_ERROR_ELEMENT_FAILED, "Unexpected location of signed Body with ID = %s", ref);
        return 1;
    }

    return 0;
}

int InitWSSEC(axutil_env_t * env, axis2_stub_t * stub, char *policyFile)
{
    axis2_svc_client_t *svc_client = NULL;
    neethi_policy_t *policy = NULL;
    axis2_status_t status = AXIS2_FAILURE;

    //return(0);

    svc_client = axis2_stub_get_svc_client(stub, env);
    if (!svc_client) {
        logprintfl(EUCAERROR, "could not get svc_client from stub\n");
        return (1);
    }
    axis2_svc_client_engage_module(svc_client, env, "rampart");

    policy = neethi_util_create_policy_from_file(env, policyFile);
    if (!policy) {
        logprintfl(EUCAERROR, "could not initialize policy file %s\n", policyFile);
        return (1);
    }
    status = axis2_svc_client_set_policy(svc_client, env, policy);

    return (0);
}
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