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open5gs/src/smf/s6b-path.c

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/* 3GPP TS 29.273 section 9
* 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 "fd-path.h"
static struct session_handler *smf_s6b_reg = NULL;
static struct disp_hdl *hdl_s6b_fb = NULL;
struct sess_state {
smf_sess_t *sess;
os0_t s6b_sid; /* S6B Session-Id */
ogs_gtp_xact_t *xact;
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 void smf_s6b_aaa_cb(void *data, struct msg **msg);
static void smf_s6b_sta_cb(void *data, struct msg **msg);
static __inline__ struct sess_state *new_state(os0_t sid)
{
struct sess_state *new = NULL;
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;
}
new->s6b_sid = (os0_t)ogs_strdup((char *)sid);
if (!new->s6b_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->s6b_sid)
ogs_free(sess_data->s6b_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 smf_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;
}
void smf_s6b_send_aar(smf_sess_t *sess, ogs_gtp_xact_t *xact)
{
int ret;
struct msg *req = NULL;
struct avp *avp;
union avp_value val;
struct sess_state *sess_data = NULL, *svg;
struct session *session = NULL;
int new;
smf_ue_t *smf_ue = NULL;
char *user_name = NULL;
char *visited_network_identifier = NULL;
struct avp *mip6_agent_info, *mip_home_agent_address;
struct sockaddr_in sin;
struct sockaddr_in6 sin6;
ogs_assert(xact);
ogs_assert(sess);
smf_ue = sess->smf_ue;
ogs_assert(smf_ue);
ogs_debug("[AA-Request]");
/* Create the request */
ret = fd_msg_new(ogs_diam_rx_cmd_aar, MSGFL_ALLOC_ETEID, &req);
ogs_assert(ret == 0);
{
struct msg_hdr * h;
ret = fd_msg_hdr( req, &h );
ogs_assert(ret == 0);
h->msg_appl = OGS_DIAM_S6B_APPLICATION_ID;
}
/* Find Diameter S6b Session */
if (sess->s6b_sid) {
/* Retrieve session by Session-Id */
size_t sidlen = strlen(sess->s6b_sid);
ret = fd_sess_fromsid_msg((os0_t)sess->s6b_sid, sidlen, &session, &new);
ogs_assert(ret == 0);
ogs_assert(new == 0);
ogs_debug(" Found S6b Session-Id: [%s]", sess->s6b_sid);
/* Add Session-Id to the message */
ret = ogs_diam_message_session_id_set(
req, (os0_t)sess->s6b_sid, sidlen);
ogs_assert(ret == 0);
/* Save the session associated with the message */
ret = fd_msg_sess_set(req, session);
} else {
/* Create a new session */
#define OGS_DIAM_S6B_APP_SID_OPT "app_s6b"
ret = fd_msg_new_session(req, (os0_t)OGS_DIAM_S6B_APP_SID_OPT,
CONSTSTRLEN(OGS_DIAM_S6B_APP_SID_OPT));
ogs_assert(ret == 0);
ret = fd_msg_sess_get(fd_g_config->cnf_dict, req, &session, NULL);
ogs_assert(ret == 0);
}
/* Retrieve session state in this session */
ret = fd_sess_state_retrieve(smf_s6b_reg, session, &sess_data);
if (!sess_data) {
os0_t sid;
size_t sidlen;
ret = fd_sess_getsid(session, &sid, &sidlen);
ogs_assert(ret == 0);
/* Allocate new session state memory */
sess_data = new_state(sid);
ogs_assert(sess_data);
ogs_debug(" Allocate new session: [%s]", sess_data->s6b_sid);
/* Save Session-Id to SMF Session Context */
sess->s6b_sid = (char *)sess_data->s6b_sid;
} else
ogs_debug(" Retrieve session: [%s]", sess_data->s6b_sid);
/* Update session state */
sess_data->sess = sess;
sess_data->xact = xact;
/* Set Origin-Host & Origin-Realm */
ret = fd_msg_add_origin(req, 0);
ogs_assert(ret == 0);
/* Set the Destination-Realm AVP */
ret = fd_msg_avp_new(ogs_diam_destination_realm, 0, &avp);
ogs_assert(ret == 0);
val.os.data = (unsigned char *)(fd_g_config->cnf_diamrlm);
val.os.len = strlen(fd_g_config->cnf_diamrlm);
ret = fd_msg_avp_setvalue(avp, &val);
ogs_assert(ret == 0);
ret = fd_msg_avp_add(req, MSG_BRW_LAST_CHILD, avp);
ogs_assert(ret == 0);
/* 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(req, 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(req, MSG_BRW_LAST_CHILD, avp);
ogs_assert(ret == 0);
/* Set RAT-Type */
ret = fd_msg_avp_new(ogs_diam_rat_type, 0, &avp);
ogs_assert(ret == 0);
switch (sess->gtp_rat_type) {
case OGS_GTP2_RAT_TYPE_EUTRAN:
val.i32 = OGS_DIAM_RAT_TYPE_EUTRAN;
break;
case OGS_GTP2_RAT_TYPE_WLAN:
val.i32 = OGS_DIAM_RAT_TYPE_WLAN;
break;
default:
ogs_error("Unknown RAT Type [%d]", sess->gtp_rat_type);
ogs_assert_if_reached();
}
ret = fd_msg_avp_setvalue(avp, &val);
ogs_assert(ret == 0);
ret = fd_msg_avp_add(req, MSG_BRW_LAST_CHILD, avp);
ogs_assert(ret == 0);
/* Set the User-Name AVP */
user_name = ogs_msprintf("%s@nai.epc.mnc%03d.mcc%03d.3gppnetwork.org",
smf_ue->imsi_bcd,
ogs_plmn_id_mnc(&sess->serving_plmn_id),
ogs_plmn_id_mcc(&sess->serving_plmn_id));
ogs_assert(user_name);
ret = fd_msg_avp_new(ogs_diam_user_name, 0, &avp);
ogs_assert(ret == 0);
val.os.data = (uint8_t *)user_name;
val.os.len = strlen(user_name);
ret = fd_msg_avp_setvalue(avp, &val);
ogs_assert(ret == 0);
ret = fd_msg_avp_add(req, MSG_BRW_LAST_CHILD, avp);
ogs_assert(ret == 0);
/* Set MIP6-Feature-Vector */
ret = fd_msg_avp_new(ogs_diam_s6b_mip6_feature_vector, 0, &avp);
ogs_assert(ret == 0);
val.u64 = 0x0000400000000000LL; /* GTPv2_SUPPORTED: Set */
ret = fd_msg_avp_setvalue(avp, &val);
ogs_assert(ret == 0);
ret = fd_msg_avp_add(req, MSG_BRW_LAST_CHILD, avp);
ogs_assert(ret == 0);
/* Set MIP6-Agent-Info */
ret = fd_msg_avp_new(ogs_diam_mip6_agent_info, 0, &mip6_agent_info);
ogs_assert(ret == 0);
if (ogs_gtp_self()->gtpc_addr) {
ret = fd_msg_avp_new(ogs_diam_mip_home_agent_address, 0,
&mip_home_agent_address);
ogs_assert(ret == 0);
sin.sin_family = AF_INET;
sin.sin_addr.s_addr =
ogs_gtp_self()->gtpc_addr->sin.sin_addr.s_addr;
ret = fd_msg_avp_value_encode (
&sin, mip_home_agent_address );
ogs_assert(ret == 0);
ret = fd_msg_avp_add(mip6_agent_info,
MSG_BRW_LAST_CHILD, mip_home_agent_address);
ogs_assert(ret == 0);
}
if (ogs_gtp_self()->gtpc_addr6) {
ret = fd_msg_avp_new(ogs_diam_mip_home_agent_address, 0,
&mip_home_agent_address);
ogs_assert(ret == 0);
sin6.sin6_family = AF_INET6;
memcpy(sin6.sin6_addr.s6_addr,
ogs_gtp_self()->gtpc_addr6->sin6.sin6_addr.s6_addr,
OGS_IPV6_LEN);
ret = fd_msg_avp_value_encode (
&sin6, mip_home_agent_address );
ogs_assert(ret == 0);
ret = fd_msg_avp_add(mip6_agent_info,
MSG_BRW_LAST_CHILD, mip_home_agent_address);
ogs_assert(ret == 0);
}
ret = fd_msg_avp_add(req, MSG_BRW_LAST_CHILD, mip6_agent_info);
ogs_assert(ret == 0);
/* Set the Visited-Network-Identifier AVP */
visited_network_identifier =
ogs_msprintf("mnc%03d.mcc%03d.3gppnetwork.org",
ogs_plmn_id_mnc(&sess->serving_plmn_id),
ogs_plmn_id_mcc(&sess->serving_plmn_id));
ogs_assert(visited_network_identifier);
ret = fd_msg_avp_new(ogs_diam_visited_network_identifier, 0, &avp);
ogs_assert(ret == 0);
val.os.data = (unsigned char *)(visited_network_identifier);
val.os.len = strlen(visited_network_identifier);
ret = fd_msg_avp_setvalue(avp, &val);
ogs_assert(ret == 0);
ret = fd_msg_avp_add(req, MSG_BRW_LAST_CHILD, avp);
ogs_assert(ret == 0);
/* Set Service-Selection */
ret = fd_msg_avp_new(ogs_diam_service_selection, 0, &avp);
ogs_assert(ret == 0);
ogs_assert(sess->session.name);
val.os.data = (uint8_t*)sess->session.name;
val.os.len = strlen(sess->session.name);
ret = fd_msg_avp_setvalue(avp, &val);
ogs_assert(ret == 0);
ret = fd_msg_avp_add(req, MSG_BRW_LAST_CHILD, avp);
ogs_assert(ret == 0);
/* Keep a pointer to the session data for debug purpose,
* in real life we would not need it */
svg = sess_data;
/* Store this value in the session */
ret = fd_sess_state_store(smf_s6b_reg, session, &sess_data);
ogs_assert(ret == 0);
ogs_assert(sess_data == NULL);
/* Send the request */
ret = fd_msg_send(&req, smf_s6b_aaa_cb, svg);
ogs_assert(ret == 0);
/* Increment the counter */
ogs_assert(pthread_mutex_lock(&ogs_diam_logger_self()->stats_lock) == 0);
ogs_diam_logger_self()->stats.nb_sent++;
ogs_assert(pthread_mutex_unlock(&ogs_diam_logger_self()->stats_lock) == 0);
ogs_free(user_name);
ogs_free(visited_network_identifier);
}
static void smf_s6b_aaa_cb(void *data, struct msg **msg)
{
int ret;
struct sess_state *sess_data = NULL;
struct timespec ts;
struct session *session;
struct avp *avp, *avpch1;
struct avp_hdr *hdr;
unsigned long dur;
int error = 0;
int new;
smf_sess_t *sess = NULL;
ogs_gtp_xact_t *xact = NULL;
smf_event_t *e = NULL;
ogs_diam_s6b_message_t *s6b_message = NULL;
ogs_debug("[AA-Answer]");
ret = clock_gettime(CLOCK_REALTIME, &ts);
ogs_assert(ret == 0);
/* Search the session, retrieve its data */
ret = fd_msg_sess_get(fd_g_config->cnf_dict, *msg, &session, &new);
ogs_assert(ret == 0);
ogs_assert(new == 0);
ogs_debug(" Search the session");
ret = fd_sess_state_retrieve(smf_s6b_reg, session, &sess_data);
ogs_assert(ret == 0);
ogs_assert(sess_data);
ogs_assert((void *)sess_data == data);
ogs_debug(" Retrieve its data: [%s]", sess_data->s6b_sid);
sess = sess_data->sess;
ogs_assert(sess);
xact = sess_data->xact;
ogs_assert(xact);
s6b_message = ogs_calloc(1, sizeof(ogs_diam_s6b_message_t));
ogs_assert(s6b_message);
/* Set Session Termination Command */
s6b_message->cmd_code = OGS_DIAM_S6B_CMD_AUTHENTICATION_AUTHORIZATION;
/* Value of Result Code */
ret = fd_msg_search_avp(*msg, ogs_diam_result_code, &avp);
ogs_assert(ret == 0);
if (avp) {
ret = fd_msg_avp_hdr(avp, &hdr);
ogs_assert(ret == 0);
s6b_message->result_code = hdr->avp_value->i32;
if (s6b_message->result_code != ER_DIAMETER_SUCCESS) {
ogs_error("Result Code: %d", s6b_message->result_code);
error++;
}
} else {
error++;
ret = fd_msg_search_avp(*msg, ogs_diam_experimental_result, &avp);
ogs_assert(ret == 0);
if (avp) {
ret = fd_avp_search_avp(
avp, ogs_diam_experimental_result_code, &avpch1);
ogs_assert(ret == 0);
if (avpch1) {
ret = fd_msg_avp_hdr(avpch1, &hdr);
ogs_assert(ret == 0);
s6b_message->result_code = hdr->avp_value->i32;
ogs_error("Experimental Result Code: %d", s6b_message->result_code);
}
} else {
ogs_error("no Result-Code");
}
}
/* Value of Origin-Host */
ret = fd_msg_search_avp(*msg, ogs_diam_origin_host, &avp);
ogs_assert(ret == 0);
if (avp) {
ret = fd_msg_avp_hdr(avp, &hdr);
ogs_assert(ret == 0);
ogs_debug("From '%.*s' ",
(int)hdr->avp_value->os.len, hdr->avp_value->os.data);
} else {
ogs_error("no_Origin-Host ");
error++;
}
/* Value of Origin-Realm */
ret = fd_msg_search_avp(*msg, ogs_diam_origin_realm, &avp);
ogs_assert(ret == 0);
if (avp) {
ret = fd_msg_avp_hdr(avp, &hdr);
ogs_assert(ret == 0);
ogs_debug("('%.*s') ",
(int)hdr->avp_value->os.len, hdr->avp_value->os.data);
} else {
ogs_error("no_Origin-Realm ");
error++;
}
e = smf_event_new(SMF_EVT_S6B_MESSAGE);
ogs_assert(e);
if (error && s6b_message->result_code == ER_DIAMETER_SUCCESS)
s6b_message->result_code = error;
e->sess = sess;
e->gtp_xact = xact;
e->s6b_message = s6b_message;
ret = ogs_queue_push(ogs_app()->queue, e);
if (ret != OGS_OK) {
ogs_error("ogs_queue_push() failed:%d", (int)ret);
ogs_free(s6b_message);
ogs_event_free(e);
} else {
ogs_pollset_notify(ogs_app()->pollset);
}
/* Free the message */
ogs_assert(pthread_mutex_lock(&ogs_diam_logger_self()->stats_lock) == 0);
dur = ((ts.tv_sec - sess_data->ts.tv_sec) * 1000000) +
((ts.tv_nsec - sess_data->ts.tv_nsec) / 1000);
if (ogs_diam_logger_self()->stats.nb_recv) {
/* Ponderate in the avg */
ogs_diam_logger_self()->stats.avg = (ogs_diam_logger_self()->stats.avg *
ogs_diam_logger_self()->stats.nb_recv + dur) /
(ogs_diam_logger_self()->stats.nb_recv + 1);
/* Min, max */
if (dur < ogs_diam_logger_self()->stats.shortest)
ogs_diam_logger_self()->stats.shortest = dur;
if (dur > ogs_diam_logger_self()->stats.longest)
ogs_diam_logger_self()->stats.longest = dur;
} else {
ogs_diam_logger_self()->stats.shortest = dur;
ogs_diam_logger_self()->stats.longest = dur;
ogs_diam_logger_self()->stats.avg = dur;
}
if (error)
ogs_diam_logger_self()->stats.nb_errs++;
else
ogs_diam_logger_self()->stats.nb_recv++;
ogs_assert(pthread_mutex_unlock(&ogs_diam_logger_self()->stats_lock) == 0);
/* Display how long it took */
if (ts.tv_nsec > sess_data->ts.tv_nsec)
ogs_debug("in %d.%06ld sec",
(int)(ts.tv_sec - sess_data->ts.tv_sec),
(long)(ts.tv_nsec - sess_data->ts.tv_nsec) / 1000);
else
ogs_debug("in %d.%06ld sec",
(int)(ts.tv_sec + 1 - sess_data->ts.tv_sec),
(long)(1000000000 + ts.tv_nsec - sess_data->ts.tv_nsec) / 1000);
ret = fd_sess_state_store(smf_s6b_reg, session, &sess_data);
ogs_assert(ret == 0);
ogs_assert(sess_data == NULL);
ret = fd_msg_free(*msg);
ogs_assert(ret == 0);
*msg = NULL;
return;
}
void smf_s6b_send_str(smf_sess_t *sess, ogs_gtp_xact_t *xact, uint32_t cause)
{
int ret;
struct msg *req = NULL;
struct avp *avp;
union avp_value val;
struct sess_state *sess_data = NULL, *svg;
struct session *session = NULL;
int new;
size_t sidlen;
smf_ue_t *smf_ue = NULL;
char *user_name = NULL;
//ogs_assert(xact);
ogs_assert(sess);
smf_ue = sess->smf_ue;
ogs_assert(smf_ue);
ogs_debug("[Session-Termination-Request]");
/* Create the request */
ret = fd_msg_new(ogs_diam_rx_cmd_str, MSGFL_ALLOC_ETEID, &req);
ogs_assert(ret == 0);
{
struct msg_hdr * h;
ret = fd_msg_hdr( req, &h );
ogs_assert(ret == 0);
h->msg_appl = OGS_DIAM_S6B_APPLICATION_ID;
}
ogs_assert(sess->s6b_sid);
/* Retrieve session by Session-Id */
sidlen = strlen(sess->s6b_sid);
ret = fd_sess_fromsid_msg((os0_t)sess->s6b_sid, sidlen, &session, &new);
ogs_assert(ret == 0);
ogs_assert(new == 0);
ogs_debug(" Found S6b Session-Id: [%s]", sess->s6b_sid);
/* Add Session-Id to the message */
ret = ogs_diam_message_session_id_set(req, (os0_t)sess->s6b_sid, sidlen);
ogs_assert(ret == 0);
/* Save the session associated with the message */
ret = fd_msg_sess_set(req, session);
/* Retrieve session state in this session */
ret = fd_sess_state_retrieve(smf_s6b_reg, session, &sess_data);
ogs_assert(ret == 0);
ogs_assert(sess_data);
ogs_debug(" Retrieve session: [%s]", sess_data->s6b_sid);
/* Update session state */
sess_data->sess = sess;
sess_data->xact = xact;
/* Set Origin-Host & Origin-Realm */
ret = fd_msg_add_origin(req, 0);
ogs_assert(ret == 0);
/* Set the Destination-Realm AVP */
ret = fd_msg_avp_new(ogs_diam_destination_realm, 0, &avp);
ogs_assert(ret == 0);
val.os.data = (unsigned char *)(fd_g_config->cnf_diamrlm);
val.os.len = strlen(fd_g_config->cnf_diamrlm);
ret = fd_msg_avp_setvalue(avp, &val);
ogs_assert(ret == 0);
ret = fd_msg_avp_add(req, MSG_BRW_LAST_CHILD, avp);
ogs_assert(ret == 0);
/* 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(req, MSG_BRW_LAST_CHILD, avp);
ogs_assert(ret == 0);
/* Set the Termination-Cause AVP */
ret = fd_msg_avp_new(ogs_diam_termination_cause, 0, &avp);
ogs_assert(ret == 0);
val.i32 = cause;
ret = fd_msg_avp_setvalue(avp, &val);
ogs_assert(ret == 0);
ret = fd_msg_avp_add(req, MSG_BRW_LAST_CHILD, avp);
ogs_assert(ret == 0);
/* Set the User-Name AVP */
user_name = ogs_msprintf("%s@nai.epc.mnc%03d.mcc%03d.3gppnetwork.org",
smf_ue->imsi_bcd,
ogs_plmn_id_mnc(&sess->serving_plmn_id),
ogs_plmn_id_mcc(&sess->serving_plmn_id));
ogs_assert(user_name);
ret = fd_msg_avp_new(ogs_diam_user_name, 0, &avp);
ogs_assert(ret == 0);
val.os.data = (uint8_t *)user_name;
val.os.len = strlen(user_name);
ret = fd_msg_avp_setvalue(avp, &val);
ogs_assert(ret == 0);
ret = fd_msg_avp_add(req, MSG_BRW_LAST_CHILD, avp);
ogs_assert(ret == 0);
/* Keep a pointer to the session data for debug purpose,
* in real life we would not need it */
svg = sess_data;
/* Store this value in the session */
ret = fd_sess_state_store(smf_s6b_reg, session, &sess_data);
ogs_assert(ret == 0);
ogs_assert(sess_data == NULL);
/* Send the request */
ret = fd_msg_send(&req, smf_s6b_sta_cb, svg);
ogs_assert(ret == 0);
/* Increment the counter */
ogs_assert(pthread_mutex_lock(&ogs_diam_logger_self()->stats_lock) == 0);
ogs_diam_logger_self()->stats.nb_sent++;
ogs_assert(pthread_mutex_unlock(&ogs_diam_logger_self()->stats_lock) == 0);
ogs_free(user_name);
}
static void smf_s6b_sta_cb(void *data, struct msg **msg)
{
int ret;
int rv;
struct sess_state *sess_data = NULL;
struct timespec ts;
struct session *session;
struct avp *avp, *avpch1;
struct avp_hdr *hdr;
unsigned long dur;
int error = 0;
int new;
smf_event_t *e = NULL;
smf_sess_t *sess = NULL;
ogs_diam_s6b_message_t *s6b_message = NULL;
ogs_debug("[Session-Termination-Answer]");
ret = clock_gettime(CLOCK_REALTIME, &ts);
ogs_assert(ret == 0);
/* Search the session, retrieve its data */
ret = fd_msg_sess_get(fd_g_config->cnf_dict, *msg, &session, &new);
ogs_assert(ret == 0);
ogs_assert(new == 0);
ogs_debug(" Search the session");
ret = fd_sess_state_retrieve(smf_s6b_reg, session, &sess_data);
ogs_assert(ret == 0);
ogs_assert(sess_data);
ogs_assert((void *)sess_data == data);
ogs_debug(" Retrieve its data: [%s]", sess_data->s6b_sid);
sess = sess_data->sess;
s6b_message = ogs_calloc(1, sizeof(ogs_diam_s6b_message_t));
ogs_assert(s6b_message);
/* Set Session Termination Command */
s6b_message->cmd_code = OGS_DIAM_S6B_CMD_SESSION_TERMINATION;
/* Value of Result Code */
ret = fd_msg_search_avp(*msg, ogs_diam_result_code, &avp);
ogs_assert(ret == 0);
if (avp) {
ret = fd_msg_avp_hdr(avp, &hdr);
ogs_assert(ret == 0);
s6b_message->result_code = hdr->avp_value->i32;
s6b_message->err = &s6b_message->result_code;
if (s6b_message->result_code != ER_DIAMETER_SUCCESS) {
ogs_error("Result Code: %d", s6b_message->result_code);
error++;
}
} else {
error++;
ret = fd_msg_search_avp(*msg, ogs_diam_experimental_result, &avp);
ogs_assert(ret == 0);
if (avp) {
ret = fd_avp_search_avp(
avp, ogs_diam_experimental_result_code, &avpch1);
ogs_assert(ret == 0);
if (avpch1) {
ret = fd_msg_avp_hdr(avpch1, &hdr);
ogs_assert(ret == 0);
s6b_message->result_code = hdr->avp_value->i32;
s6b_message->exp_err = &s6b_message->result_code;
ogs_error("Experimental Result Code: %d",
s6b_message->result_code);
}
} else {
ogs_error("no Result-Code");
}
}
/* Value of Origin-Host */
ret = fd_msg_search_avp(*msg, ogs_diam_origin_host, &avp);
ogs_assert(ret == 0);
if (avp) {
ret = fd_msg_avp_hdr(avp, &hdr);
ogs_assert(ret == 0);
ogs_debug("From '%.*s' ",
(int)hdr->avp_value->os.len, hdr->avp_value->os.data);
} else {
ogs_error("no_Origin-Host ");
error++;
}
/* Value of Origin-Realm */
ret = fd_msg_search_avp(*msg, ogs_diam_origin_realm, &avp);
ogs_assert(ret == 0);
if (avp) {
ret = fd_msg_avp_hdr(avp, &hdr);
ogs_assert(ret == 0);
ogs_debug("('%.*s') ",
(int)hdr->avp_value->os.len, hdr->avp_value->os.data);
} else {
ogs_error("no_Origin-Realm ");
error++;
}
if (!error) {
e = smf_event_new(SMF_EVT_S6B_MESSAGE);
ogs_assert(e);
e->sess = sess;
e->s6b_message = s6b_message;
rv = ogs_queue_push(ogs_app()->queue, e);
if (rv != OGS_OK) {
ogs_error("ogs_queue_push() failed:%d", (int)rv);
ogs_free(s6b_message);
ogs_event_free(e);
} else {
ogs_pollset_notify(ogs_app()->pollset);
}
} else {
ogs_free(s6b_message);
}
/* Free the message */
ogs_assert(pthread_mutex_lock(&ogs_diam_logger_self()->stats_lock) == 0);
dur = ((ts.tv_sec - sess_data->ts.tv_sec) * 1000000) +
((ts.tv_nsec - sess_data->ts.tv_nsec) / 1000);
if (ogs_diam_logger_self()->stats.nb_recv) {
/* Ponderate in the avg */
ogs_diam_logger_self()->stats.avg = (ogs_diam_logger_self()->stats.avg *
ogs_diam_logger_self()->stats.nb_recv + dur) /
(ogs_diam_logger_self()->stats.nb_recv + 1);
/* Min, max */
if (dur < ogs_diam_logger_self()->stats.shortest)
ogs_diam_logger_self()->stats.shortest = dur;
if (dur > ogs_diam_logger_self()->stats.longest)
ogs_diam_logger_self()->stats.longest = dur;
} else {
ogs_diam_logger_self()->stats.shortest = dur;
ogs_diam_logger_self()->stats.longest = dur;
ogs_diam_logger_self()->stats.avg = dur;
}
if (error)
ogs_diam_logger_self()->stats.nb_errs++;
else
ogs_diam_logger_self()->stats.nb_recv++;
ogs_assert(pthread_mutex_unlock(&ogs_diam_logger_self()->stats_lock) == 0);
/* Display how long it took */
if (ts.tv_nsec > sess_data->ts.tv_nsec)
ogs_debug("in %d.%06ld sec",
(int)(ts.tv_sec - sess_data->ts.tv_sec),
(long)(ts.tv_nsec - sess_data->ts.tv_nsec) / 1000);
else
ogs_debug("in %d.%06ld sec",
(int)(ts.tv_sec + 1 - sess_data->ts.tv_sec),
(long)(1000000000 + ts.tv_nsec - sess_data->ts.tv_nsec) / 1000);
ret = fd_sess_state_store(smf_s6b_reg, session, &sess_data);
ogs_assert(ret == 0);
ogs_assert(sess_data == NULL);
ret = fd_msg_free(*msg);
ogs_assert(ret == 0);
*msg = NULL;
return;
}
int smf_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(&smf_s6b_reg, state_cleanup, NULL, NULL);
ogs_assert(ret == 0);
memset(&data, 0, sizeof(data));
data.app = ogs_diam_s6b_application;
ret = fd_disp_register(smf_s6b_fb_cb, DISP_HOW_APPID, &data, NULL,
&hdl_s6b_fb);
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 OGS_OK;
}
void smf_s6b_final(void)
{
int ret;
ret = fd_sess_handler_destroy(&smf_s6b_reg, NULL);
ogs_assert(ret == 0);
if (hdl_s6b_fb)
(void) fd_disp_unregister(&hdl_s6b_fb, NULL);
ogs_pool_final(&sess_state_pool);
ogs_thread_mutex_destroy(&sess_state_mutex);
}
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