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/*
* Copyright (C) 2019 by Sukchan Lee <acetcom@gmail.com>
*
* This file is part of Open5GS.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* 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 <https://www.gnu.org/licenses/>.
*/
#include "ogs-diameter-s6b.h"
#include "test-common.h"
#include "test-fd-path.h"
struct sess_state {
os0_t sid; /* S6B Session-Id */
struct timespec ts; /* Time of sending the message */
};
static OGS_POOL(sess_state_pool, struct sess_state);
static ogs_thread_mutex_t sess_state_mutex;
static struct session_handler *test_s6b_reg = NULL;
static struct disp_hdl *hdl_s6b_fb = NULL;
static struct disp_hdl *hdl_s6b_aar = NULL;
static struct disp_hdl *hdl_s6b_str = NULL;
static __inline__ struct sess_state *new_state(os0_t sid)
{
struct sess_state *new = NULL;
ogs_assert(sid);
ogs_thread_mutex_lock(&sess_state_mutex);
ogs_pool_alloc(&sess_state_pool, &new);
if (!new) {
ogs_error("ogs_pool_alloc() failed");
ogs_thread_mutex_unlock(&sess_state_mutex);
return NULL;
}
memset(new, 0, sizeof(*new));
new->sid = (os0_t)ogs_strdup((char *)sid);
if (!new->sid) {
ogs_error("ogs_strdup() failed");
ogs_pool_free(&sess_state_pool, new);
ogs_thread_mutex_unlock(&sess_state_mutex);
return NULL;
}
ogs_thread_mutex_unlock(&sess_state_mutex);
return new;
}
static void state_cleanup(struct sess_state *sess_data, os0_t sid, void *opaque)
{
if (!sess_data) {
ogs_error("No session state");
return;
}
if (sess_data->sid)
ogs_free(sess_data->sid);
ogs_thread_mutex_lock(&sess_state_mutex);
ogs_pool_free(&sess_state_pool, sess_data);
ogs_thread_mutex_unlock(&sess_state_mutex);
}
static int test_s6b_fb_cb(struct msg **msg, struct avp *avp,
struct session *sess, void *opaque, enum disp_action *act)
{
/* This CB should never be called */
ogs_warn("Unexpected message received!");
return ENOTSUP;
}
static int test_s6b_aar_cb( struct msg **msg, struct avp *avp,
struct session *sess, void *opaque, enum disp_action *act)
{
int rv;
int ret = 0, i;
struct msg *ans, *qry;
struct avp *avpch1, *avpch2;
struct avp_hdr *hdr;
union avp_value val;
struct sess_state *sess_data = NULL;
uint32_t result_code = OGS_DIAM_MISSING_AVP;
ogs_assert(msg);
/* Create answer header */
qry = *msg;
ret = fd_msg_new_answer_from_req(fd_g_config->cnf_dict, msg, 0);
ogs_assert(ret == 0);
ans = *msg;
/* Set the Auth-Application-Id AVP */
ret = fd_msg_avp_new(ogs_diam_auth_application_id, 0, &avp);
ogs_assert(ret == 0);
val.i32 = OGS_DIAM_S6B_APPLICATION_ID;
ret = fd_msg_avp_setvalue(avp, &val);
ogs_assert(ret == 0);
ret = fd_msg_avp_add(ans, MSG_BRW_LAST_CHILD, avp);
ogs_assert(ret == 0);
/* Set the Auth-Request-Type AVP */
ret = fd_msg_avp_new(ogs_diam_auth_request_type, 0, &avp);
ogs_assert(ret == 0);
val.i32 = OGS_DIAM_AUTH_REQUEST_TYPE_AUTHORIZE_ONLY;
ret = fd_msg_avp_setvalue(avp, &val);
ogs_assert(ret == 0);
ret = fd_msg_avp_add(ans, MSG_BRW_LAST_CHILD, avp);
ogs_assert(ret == 0);
/* Find Session */
ret = fd_sess_state_retrieve(test_s6b_reg, sess, &sess_data);
ogs_assert(ret == 0);
if (!sess_data) {
os0_t sid;
size_t sidlen;
ret = fd_sess_getsid(sess, &sid, &sidlen);
ogs_assert(ret == 0);
sess_data = new_state(sid);
ogs_assert(sess_data);
}
/* Get Origin-Host */
ret = fd_msg_search_avp(qry, ogs_diam_origin_host, &avp);
ogs_assert(ret == 0);
if (avp) {
ret = fd_msg_avp_hdr(avp, &hdr);
ogs_assert(ret == 0);
} else {
ogs_error("no_CC-Request-Type ");
result_code = OGS_DIAM_MISSING_AVP;
goto out;
}
/* Set the Session-Timeout AVP */
ret = fd_msg_avp_new(ogs_diam_session_timeout, 0, &avp);
ogs_assert(ret == 0);
val.i32 = 7200;
ret = fd_msg_avp_setvalue(avp, &val);
ogs_assert(ret == 0);
ret = fd_msg_avp_add(ans, MSG_BRW_LAST_CHILD, avp);
ogs_assert(ret == 0);
/* Set the Origin-Host, Origin-Realm, andResult-Code AVPs */
ret = fd_msg_rescode_set(ans, (char *)"DIAMETER_SUCCESS", NULL, NULL, 1);
ogs_assert(ret == 0);
/* Store this value in the session */
ret = fd_sess_state_store(test_s6b_reg, sess, &sess_data);
ogs_assert(ret == 0);
ogs_assert(sess_data == NULL);
/* Send the answer */
ret = fd_msg_send(msg, NULL, NULL);
ogs_assert(ret == 0);
/* Add this value to the stats */
ogs_assert(pthread_mutex_lock(&ogs_diam_logger_self()->stats_lock) == 0);
ogs_diam_logger_self()->stats.nb_echoed++;
ogs_assert(pthread_mutex_unlock(&ogs_diam_logger_self()->stats_lock) ==0);
return 0;
out:
/* Set the Result-Code */
if (result_code == OGS_DIAM_AVP_UNSUPPORTED) {
ret = fd_msg_rescode_set(ans,
(char *)"DIAMETER_AVP_UNSUPPORTED", NULL, NULL, 1);
ogs_assert(ret == 0);
} else if (result_code == OGS_DIAM_UNKNOWN_SESSION_ID) {
ret = fd_msg_rescode_set(ans,
(char *)"DIAMETER_UNKNOWN_SESSION_ID", NULL, NULL, 1);
ogs_assert(ret == 0);
} else if (result_code == OGS_DIAM_MISSING_AVP) {
ret = fd_msg_rescode_set(ans,
(char *)"DIAMETER_MISSING_AVP", NULL, NULL, 1);
ogs_assert(ret == 0);
} else {
ret = ogs_diam_message_experimental_rescode_set(ans, result_code);
ogs_assert(ret == 0);
}
if (sess_data) {
/* Store this value in the session */
ret = fd_sess_state_store(test_s6b_reg, sess, &sess_data);
ogs_assert(sess_data == NULL);
}
ret = fd_msg_send(msg, NULL, NULL);
ogs_assert(ret == 0);
return 0;
}
static int test_s6b_str_cb( struct msg **msg, struct avp *avp,
struct session *sess, void *opaque, enum disp_action *act)
{
int rv;
int ret = 0, i;
struct msg *ans, *qry;
struct avp *avpch1, *avpch2;
struct avp_hdr *hdr;
union avp_value val;
struct sess_state *sess_data = NULL;
uint32_t result_code = OGS_DIAM_MISSING_AVP;
ogs_assert(msg);
/* Create answer header */
qry = *msg;
ret = fd_msg_new_answer_from_req(fd_g_config->cnf_dict, msg, 0);
ogs_assert(ret == 0);
ans = *msg;
/* Find Session */
ret = fd_sess_state_retrieve(test_s6b_reg, sess, &sess_data);
ogs_assert(ret == 0);
if (!sess_data) {
os0_t sid;
size_t sidlen;
ret = fd_sess_getsid(sess, &sid, &sidlen);
ogs_assert(ret == 0);
sess_data = new_state(sid);
ogs_assert(sess_data);
}
/* Get Origin-Host */
ret = fd_msg_search_avp(qry, ogs_diam_origin_host, &avp);
ogs_assert(ret == 0);
if (avp) {
ret = fd_msg_avp_hdr(avp, &hdr);
ogs_assert(ret == 0);
} else {
ogs_error("no_CC-Request-Type ");
result_code = OGS_DIAM_MISSING_AVP;
goto out;
}
/* Set the Origin-Host, Origin-Realm, andResult-Code AVPs */
ret = fd_msg_rescode_set(ans, (char *)"DIAMETER_SUCCESS", NULL, NULL, 1);
ogs_assert(ret == 0);
/* Store this value in the session */
ret = fd_sess_state_store(test_s6b_reg, sess, &sess_data);
ogs_assert(ret == 0);
ogs_assert(sess_data == NULL);
/* Send the answer */
ret = fd_msg_send(msg, NULL, NULL);
ogs_assert(ret == 0);
/* Add this value to the stats */
ogs_assert(pthread_mutex_lock(&ogs_diam_logger_self()->stats_lock) == 0);
ogs_diam_logger_self()->stats.nb_echoed++;
ogs_assert(pthread_mutex_unlock(&ogs_diam_logger_self()->stats_lock) ==0);
return 0;
out:
/* Set the Result-Code */
if (result_code == OGS_DIAM_AVP_UNSUPPORTED) {
ret = fd_msg_rescode_set(ans,
(char *)"DIAMETER_AVP_UNSUPPORTED", NULL, NULL, 1);
ogs_assert(ret == 0);
} else if (result_code == OGS_DIAM_UNKNOWN_SESSION_ID) {
ret = fd_msg_rescode_set(ans,
(char *)"DIAMETER_UNKNOWN_SESSION_ID", NULL, NULL, 1);
ogs_assert(ret == 0);
} else if (result_code == OGS_DIAM_MISSING_AVP) {
ret = fd_msg_rescode_set(ans,
(char *)"DIAMETER_MISSING_AVP", NULL, NULL, 1);
ogs_assert(ret == 0);
} else {
ret = ogs_diam_message_experimental_rescode_set(ans, result_code);
ogs_assert(ret == 0);
}
if (sess_data) {
/* Store this value in the session */
ret = fd_sess_state_store(test_s6b_reg, sess, &sess_data);
ogs_assert(sess_data == NULL);
}
ret = fd_msg_send(msg, NULL, NULL);
ogs_assert(ret == 0);
return 0;
}
int test_s6b_init(void)
{
int ret;
struct disp_when data;
ogs_thread_mutex_init(&sess_state_mutex);
ogs_pool_init(&sess_state_pool, ogs_app()->pool.sess);
/* Install objects definitions for this application */
ret = ogs_diam_s6b_init();
ogs_assert(ret == 0);
/* Create handler for sessions */
ret = fd_sess_handler_create(&test_s6b_reg, &state_cleanup, NULL, NULL);
ogs_assert(ret == 0);
/* Fallback CB if command != unexpected message received */
memset(&data, 0, sizeof(data));
data.app = ogs_diam_s6b_application;
ret = fd_disp_register(test_s6b_fb_cb, DISP_HOW_APPID, &data, NULL,
&hdl_s6b_fb);
ogs_assert(ret == 0);
data.command = ogs_diam_rx_cmd_aar;
ret = fd_disp_register(test_s6b_aar_cb, DISP_HOW_CC, &data, NULL,
&hdl_s6b_aar);
ogs_assert(ret == 0);
data.command = ogs_diam_rx_cmd_str;
ret = fd_disp_register(test_s6b_str_cb, DISP_HOW_CC, &data, NULL,
&hdl_s6b_str);
ogs_assert(ret == 0);
/* Advertise the support for the application in the peer */
ret = fd_disp_app_support(ogs_diam_s6b_application, ogs_diam_vendor, 1, 0);
ogs_assert(ret == 0);
return 0;
}
void test_s6b_final(void)
{
int ret;
ret = fd_sess_handler_destroy(&test_s6b_reg, NULL);
ogs_assert(ret == OGS_OK);
if (hdl_s6b_fb)
(void) fd_disp_unregister(&hdl_s6b_fb, NULL);
if (hdl_s6b_aar)
(void) fd_disp_unregister(&hdl_s6b_aar, NULL);
if (hdl_s6b_str)
(void) fd_disp_unregister(&hdl_s6b_str, NULL);
ogs_pool_final(&sess_state_pool);
ogs_thread_mutex_destroy(&sess_state_mutex);
}
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