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mme-fd-path.c
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mme-fd-path.c
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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 "fd/fd-lib.h"
#include "fd/s6a/s6a-dict.h"
#include "fd/s6a/s6a-message.h"
#include "mme-event.h"
#include "mme-fd-path.h"
static struct session_handler *mme_s6a_reg = NULL;
struct sess_state {
mme_ue_t *mme_ue;
struct timespec ts; /* Time of sending the message */
};
static void mme_s6a_aia_cb(void *data, struct msg **msg);
static void mme_s6a_ula_cb(void *data, struct msg **msg);
static void state_cleanup(struct sess_state *sess_data, os0_t sid, void *opaque)
{
ogs_free(sess_data);
}
/* MME Sends Authentication Information Request to HSS */
void mme_s6a_send_air(mme_ue_t *mme_ue,
nas_authentication_failure_parameter_t *authentication_failure_parameter)
{
int ret;
struct msg *req = NULL;
struct avp *avp;
struct avp *avpch;
union avp_value val;
struct sess_state *sess_data = NULL, *svg;
struct session *session = NULL;
nas_plmn_id_t nas_plmn_id;
uint8_t resync[AUTS_LEN + RAND_LEN];
ogs_assert(mme_ue);
ogs_debug("[MME] Authentication-Information-Request");
/* Clear Security Context */
CLEAR_SECURITY_CONTEXT(mme_ue);
/* Create the random value to store with the session */
sess_data = ogs_calloc(1, sizeof (*sess_data));
ogs_assert(sess_data);
sess_data->mme_ue = mme_ue;
/* Create the request */
ret = fd_msg_new(s6a_cmd_air, MSGFL_ALLOC_ETEID, &req);
ogs_assert(ret == 0);
/* Create a new session */
#define S6A_APP_SID_OPT "app_s6a"
ret = fd_msg_new_session(req, (os0_t)S6A_APP_SID_OPT,
CONSTSTRLEN(S6A_APP_SID_OPT));
ogs_assert(ret == 0);
ret = fd_msg_sess_get(fd_g_config->cnf_dict, req, &session, NULL);
ogs_assert(ret == 0);
/* Set the Auth-Session-State AVP */
ret = fd_msg_avp_new(fd_auth_session_state, 0, &avp);
ogs_assert(ret == 0);
val.i32 = 1;
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 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(fd_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 User-Name AVP */
ret = fd_msg_avp_new(fd_user_name, 0, &avp);
ogs_assert(ret == 0);
val.os.data = (uint8_t *)mme_ue->imsi_bcd;
val.os.len = strlen(mme_ue->imsi_bcd);
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);
/* Add the Authentication-Info */
ret = fd_msg_avp_new(s6a_req_eutran_auth_info, 0, &avp);
ogs_assert(ret == 0);
ret = fd_msg_avp_new(s6a_number_of_requested_vectors, 0, &avpch);
ogs_assert(ret == 0);
val.u32 = 1;
ret = fd_msg_avp_setvalue (avpch, &val);
ogs_assert(ret == 0);
ret = fd_msg_avp_add (avp, MSG_BRW_LAST_CHILD, avpch);
ogs_assert(ret == 0);
ret = fd_msg_avp_new(s6a_immediate_response_preferred, 0, &avpch);
ogs_assert(ret == 0);
val.u32 = 1;
ret = fd_msg_avp_setvalue(avpch, &val);
ogs_assert(ret == 0);
ret = fd_msg_avp_add(avp, MSG_BRW_LAST_CHILD, avpch);
ogs_assert(ret == 0);
if (authentication_failure_parameter) {
ret = fd_msg_avp_new(s6a_re_synchronization_info, 0, &avpch);
ogs_assert(ret == 0);
memcpy(resync, mme_ue->rand, RAND_LEN);
memcpy(resync+RAND_LEN,
authentication_failure_parameter->auts, AUTS_LEN);
val.os.len = RAND_LEN+AUTS_LEN;
val.os.data = resync;
ret = fd_msg_avp_setvalue(avpch, &val);
ogs_assert(ret == 0);
ret = fd_msg_avp_add(avp, MSG_BRW_LAST_CHILD, avpch);
ogs_assert(ret == 0);
}
ret = fd_msg_avp_add(req, MSG_BRW_LAST_CHILD, avp);
ogs_assert(ret == 0);
/* Set the Visited-PLMN-Id AVP */
ret = fd_msg_avp_new(s6a_visited_plmn_id, 0, &avp);
ogs_assert(ret == 0);
val.os.data = nas_from_plmn_id(&nas_plmn_id, &mme_ue->tai.plmn_id);
val.os.len = PLMN_ID_LEN;
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 Vendor-Specific-Application-Id AVP */
ret = fd_message_vendor_specific_appid_set(req, S6A_APPLICATION_ID);
ogs_assert(ret == 0);
ret = clock_gettime(CLOCK_REALTIME, &sess_data->ts);
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(mme_s6a_reg, session, &sess_data);
ogs_assert(ret == 0);
ogs_assert(sess_data == 0);
/* Send the request */
ret = fd_msg_send(&req, mme_s6a_aia_cb, svg);
ogs_assert(ret == 0);
/* Increment the counter */
ogs_assert(pthread_mutex_lock(&fd_logger_self()->stats_lock) == 0);
fd_logger_self()->stats.nb_sent++;
ogs_assert(pthread_mutex_unlock(&fd_logger_self()->stats_lock) == 0);
}
/* MME received Authentication Information Answer from HSS */
static void mme_s6a_aia_cb(void *data, struct msg **msg)
{
int ret;
struct sess_state *sess_data = NULL;
struct timespec ts;
struct session *session;
struct avp *avp, *avpch;
struct avp *avp_e_utran_vector, *avp_xres, *avp_kasme, *avp_rand, *avp_autn;
struct avp_hdr *hdr;
unsigned long dur;
int error = 0;
int new;
mme_event_t *e = NULL;
mme_ue_t *mme_ue = NULL;
ogs_pkbuf_t *s6abuf = NULL;
s6a_message_t *s6a_message = NULL;
s6a_aia_message_t *aia_message = NULL;
uint16_t s6abuf_len = 0;
e_utran_vector_t *e_utran_vector = NULL;
ogs_debug("[MME] Authentication-Information-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);
ret = fd_sess_state_retrieve(mme_s6a_reg, session, &sess_data);
ogs_assert(ret == 0);
ogs_assert(sess_data);
ogs_assert((void *)sess_data == data);
mme_ue = sess_data->mme_ue;
ogs_assert(mme_ue);
s6abuf_len = sizeof(s6a_message_t);
ogs_assert(s6abuf_len < 8192);
s6abuf = ogs_pkbuf_alloc(NULL, s6abuf_len);
ogs_pkbuf_put(s6abuf, s6abuf_len);
s6a_message = s6abuf->data;
ogs_assert(s6a_message);
/* Set Authentication-Information Command */
memset(s6a_message, 0, s6abuf_len);
s6a_message->cmd_code = S6A_CMD_CODE_AUTHENTICATION_INFORMATION;
aia_message = &s6a_message->aia_message;
ogs_assert(aia_message);
e_utran_vector = &aia_message->e_utran_vector;
ogs_assert(e_utran_vector);
/* Value of Result Code */
ret = fd_msg_search_avp(*msg, fd_result_code, &avp);
ogs_assert(ret == 0);
if (avp) {
ret = fd_msg_avp_hdr(avp, &hdr);
ogs_assert(ret == 0);
s6a_message->result_code = hdr->avp_value->i32;
ogs_debug(" Result Code: %d", hdr->avp_value->i32);
} else {
ret = fd_msg_search_avp(*msg, fd_experimental_result, &avp);
ogs_assert(ret == 0);
if (avp) {
ret = fd_avp_search_avp(avp, fd_experimental_result_code, &avpch);
ogs_assert(ret == 0);
if (avpch) {
ret = fd_msg_avp_hdr(avpch, &hdr);
ogs_assert(ret == 0);
s6a_message->result_code = hdr->avp_value->i32;
ogs_debug(" Experimental Result Code: %d",
s6a_message->result_code);
}
} else {
ogs_error("no Result-Code");
error++;
}
}
/* Value of Origin-Host */
ret = fd_msg_search_avp(*msg, fd_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, fd_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 (s6a_message->result_code != ER_DIAMETER_SUCCESS) {
ogs_warn("ERROR DIAMETER Result Code(%d)", s6a_message->result_code);
goto out;
}
ret = fd_msg_search_avp(*msg, s6a_authentication_info, &avp);
ogs_assert(ret == 0);
if (avp) {
ret = fd_msg_avp_hdr(avp, &hdr);
ogs_assert(ret == 0);
} else {
ogs_error("no_Authentication-Info ");
error++;
}
ret = fd_avp_search_avp(avp, s6a_e_utran_vector, &avp_e_utran_vector);
ogs_assert(ret == 0);
if (avp) {
ret = fd_msg_avp_hdr(avp_e_utran_vector, &hdr);
ogs_assert(ret == 0);
} else {
ogs_error("no_E-UTRAN-Vector-Info ");
error++;
}
ret = fd_avp_search_avp(avp_e_utran_vector, s6a_xres, &avp_xres);
ogs_assert(ret == 0);
if (avp) {
ret = fd_msg_avp_hdr(avp_xres, &hdr);
ogs_assert(ret == 0);
memcpy(e_utran_vector->xres,
hdr->avp_value->os.data, hdr->avp_value->os.len);
e_utran_vector->xres_len = hdr->avp_value->os.len;
} else {
ogs_error("no_XRES");
error++;
}
ret = fd_avp_search_avp(avp_e_utran_vector, s6a_kasme, &avp_kasme);
ogs_assert(ret == 0);
if (avp) {
ret = fd_msg_avp_hdr(avp_kasme, &hdr);
ogs_assert(ret == 0);
memcpy(e_utran_vector->kasme,
hdr->avp_value->os.data, hdr->avp_value->os.len);
} else {
ogs_error("no_KASME");
error++;
}
ret = fd_avp_search_avp(avp_e_utran_vector, s6a_rand, &avp_rand);
if (avp) {
ret = fd_msg_avp_hdr(avp_rand, &hdr);
memcpy(e_utran_vector->rand,
hdr->avp_value->os.data, hdr->avp_value->os.len);
} else {
ogs_error("no_RAND");
error++;
}
ret = fd_avp_search_avp(avp_e_utran_vector, s6a_autn, &avp_autn);
ogs_assert(ret == 0);
if (avp) {
ret = fd_msg_avp_hdr(avp_autn, &hdr);
ogs_assert(ret == 0);
memcpy(e_utran_vector->autn,
hdr->avp_value->os.data, hdr->avp_value->os.len);
} else {
ogs_error("no_AUTN");
error++;
}
out:
if (!error) {
int rv;
e = mme_event_new(MME_EVT_S6A_MESSAGE);
ogs_assert(e);
e->mme_ue = mme_ue;
e->pkbuf = s6abuf;
rv = ogs_queue_push(mme_self()->queue, e);
if (rv != OGS_OK) {
ogs_error("ogs_queue_push() failed:%d", (int)rv);
ogs_pkbuf_free(e->pkbuf);
mme_event_free(e);
} else {
ogs_pollset_notify(mme_self()->pollset);
}
}
/* Free the message */
ogs_assert(pthread_mutex_lock(&fd_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 (fd_logger_self()->stats.nb_recv) {
/* Ponderate in the avg */
fd_logger_self()->stats.avg = (fd_logger_self()->stats.avg *
fd_logger_self()->stats.nb_recv + dur) /
(fd_logger_self()->stats.nb_recv + 1);
/* Min, max */
if (dur < fd_logger_self()->stats.shortest)
fd_logger_self()->stats.shortest = dur;
if (dur > fd_logger_self()->stats.longest)
fd_logger_self()->stats.longest = dur;
} else {
fd_logger_self()->stats.shortest = dur;
fd_logger_self()->stats.longest = dur;
fd_logger_self()->stats.avg = dur;
}
if (error)
fd_logger_self()->stats.nb_errs++;
else
fd_logger_self()->stats.nb_recv++;
ogs_assert(pthread_mutex_unlock(&fd_logger_self()->stats_lock) == 0);
/* Display how long it took */
if (ts.tv_nsec > sess_data->ts.tv_nsec)
ogs_trace("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_trace("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_msg_free(*msg);
ogs_assert(ret == 0);
*msg = NULL;
state_cleanup(sess_data, NULL, NULL);
return;
}
/* MME Sends Update Location Request to HSS */
void mme_s6a_send_ulr(mme_ue_t *mme_ue)
{
int ret;
struct msg *req = NULL;
struct avp *avp;
union avp_value val;
struct sess_state *sess_data = NULL, *svg;
struct session *session = NULL;
nas_plmn_id_t nas_plmn_id;
ogs_assert(mme_ue);
ogs_debug("[MME] Update-Location-Request");
/* Create the random value to store with the session */
sess_data = ogs_calloc(1, sizeof(*sess_data));
sess_data->mme_ue = mme_ue;
/* Create the request */
ret = fd_msg_new(s6a_cmd_ulr, MSGFL_ALLOC_ETEID, &req);
ogs_assert(ret == 0);
/* Create a new session */
#define S6A_APP_SID_OPT "app_s6a"
ret = fd_msg_new_session(req, (os0_t)S6A_APP_SID_OPT,
CONSTSTRLEN(S6A_APP_SID_OPT));
ogs_assert(ret == 0);
ret = fd_msg_sess_get(fd_g_config->cnf_dict, req, &session, NULL);
ogs_assert(ret == 0);
/* Set the Auth-Session-State AVP */
ret = fd_msg_avp_new(fd_auth_session_state, 0, &avp);
ogs_assert(ret == 0);
val.i32 = 1;
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 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(fd_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 User-Name AVP */
ret = fd_msg_avp_new(fd_user_name, 0, &avp);
ogs_assert(ret == 0);
val.os.data = (uint8_t *)mme_ue->imsi_bcd;
val.os.len = strlen(mme_ue->imsi_bcd);
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 RAT-Type */
ret = fd_msg_avp_new(s6a_rat_type, 0, &avp);
ogs_assert(ret == 0);
val.u32 = S6A_RAT_TYPE_EUTRAN;
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 ULR-Flags */
ret = fd_msg_avp_new(s6a_ulr_flags, 0, &avp);
ogs_assert(ret == 0);
val.u32 = S6A_ULR_S6A_S6D_INDICATOR;
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 Visited-PLMN-Id */
ret = fd_msg_avp_new(s6a_visited_plmn_id, 0, &avp);
ogs_assert(ret == 0);
val.os.data = nas_from_plmn_id(&nas_plmn_id, &mme_ue->tai.plmn_id);
val.os.len = PLMN_ID_LEN;
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 UE-SRVCC Capability */
ret = fd_msg_avp_new(s6a_ue_srvcc_capability, 0, &avp);
ogs_assert(ret == 0);
val.u32 = S6A_UE_SRVCC_NOT_SUPPORTED;
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 Vendor-Specific-Application-Id AVP */
ret = fd_message_vendor_specific_appid_set( req, S6A_APPLICATION_ID);
ogs_assert(ret == 0);
ret = clock_gettime(CLOCK_REALTIME, &sess_data->ts);
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(mme_s6a_reg, session, &sess_data);
ogs_assert(ret == 0);
ogs_assert(sess_data == 0);
/* Send the request */
ret = fd_msg_send(&req, mme_s6a_ula_cb, svg);
ogs_assert(ret == 0);
/* Increment the counter */
ogs_assert(pthread_mutex_lock(&fd_logger_self()->stats_lock) == 0);
fd_logger_self()->stats.nb_sent++;
ogs_assert(pthread_mutex_unlock(&fd_logger_self()->stats_lock) == 0);
}
/* MME received Update Location Answer from HSS */
static void mme_s6a_ula_cb(void *data, struct msg **msg)
{
int ret;
struct sess_state *sess_data = NULL;
struct timespec ts;
struct session *session;
struct avp *avp, *avpch;
struct avp *avpch1, *avpch2, *avpch3, *avpch4, *avpch5;
struct avp_hdr *hdr;
unsigned long dur;
int error = 0;
int new;
mme_event_t *e = NULL;
mme_ue_t *mme_ue = NULL;
ogs_pkbuf_t *s6abuf = NULL;
s6a_message_t *s6a_message = NULL;
s6a_ula_message_t *ula_message = NULL;
s6a_subscription_data_t *subscription_data = NULL;
uint16_t s6abuf_len = 0;
ogs_debug("[MME] Update-Location-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);
ret = fd_sess_state_retrieve(mme_s6a_reg, session, &sess_data);
ogs_assert(ret == 0);
ogs_assert(sess_data);
ogs_assert((void *)sess_data == data);
mme_ue = sess_data->mme_ue;
ogs_assert(mme_ue);
s6abuf_len = sizeof(s6a_message_t);
ogs_assert(s6abuf_len < 8192);
s6abuf = ogs_pkbuf_alloc(NULL, s6abuf_len);
ogs_pkbuf_put(s6abuf, s6abuf_len);
s6a_message = s6abuf->data;
ogs_assert(s6a_message);
/* Set Authentication-Information Command */
memset(s6a_message, 0, s6abuf_len);
s6a_message->cmd_code = S6A_CMD_CODE_UPDATE_LOCATION;
ula_message = &s6a_message->ula_message;
ogs_assert(ula_message);
subscription_data = &ula_message->subscription_data;
ogs_assert(subscription_data);
/* Value of Result Code */
ret = fd_msg_search_avp(*msg, fd_result_code, &avp);
ogs_assert(ret == 0);
if (avp) {
ret = fd_msg_avp_hdr(avp, &hdr);
ogs_assert(ret == 0);
s6a_message->result_code = hdr->avp_value->i32;
ogs_debug(" Result Code: %d", hdr->avp_value->i32);
} else {
ret = fd_msg_search_avp(*msg, fd_experimental_result, &avp);
ogs_assert(ret == 0);
if (avp) {
ret = fd_avp_search_avp(avp, fd_experimental_result_code, &avpch);
ogs_assert(ret == 0);
if (avpch) {
ret = fd_msg_avp_hdr(avpch, &hdr);
ogs_assert(ret == 0);
s6a_message->result_code = hdr->avp_value->i32;
ogs_debug(" Experimental Result Code: %d",
s6a_message->result_code);
}
} else {
ogs_error("no Result-Code");
error++;
}
}
/* Value of Origin-Host */
ret = fd_msg_search_avp(*msg, fd_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, fd_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++;
}
ret = fd_msg_search_avp(*msg, s6a_ula_flags, &avp);
ogs_assert(ret == 0);
if (avp) {
ret = fd_msg_avp_hdr(avp, &hdr);
ogs_assert(ret == 0);
ula_message->ula_flags = hdr->avp_value->i32;
} else {
ogs_error("no_ULA-Flags");
error++;
}
ret = fd_msg_search_avp(*msg, s6a_subscription_data, &avp);
ogs_assert(ret == 0);
if (avp) {
ret = fd_avp_search_avp(avp, s6a_ambr, &avpch1);
ogs_assert(ret == 0);
if (avpch1) {
ret = fd_avp_search_avp( avpch1, s6a_max_bandwidth_ul, &avpch2);
ogs_assert(ret == 0);
if (avpch2) {
ret = fd_msg_avp_hdr(avpch2, &hdr);
ogs_assert(ret == 0);
subscription_data->ambr.uplink = hdr->avp_value->u32;
} else {
ogs_error("no_Max-Bandwidth-UL");
error++;
}
ret = fd_avp_search_avp(avpch1, s6a_max_bandwidth_dl, &avpch2);
ogs_assert(ret == 0);
if (avpch2) {
ret = fd_msg_avp_hdr(avpch2, &hdr);
ogs_assert(ret == 0);
subscription_data->ambr.downlink = hdr->avp_value->u32;
} else {
ogs_error("no_Max-Bandwidth-DL");
error++;
}
} else {
ogs_error("no_AMBR");
error++;
}
ret = fd_avp_search_avp(avp, s6a_apn_configuration_profile, &avpch1);
ogs_assert(ret == 0);
if (avpch1) {
ret = fd_msg_browse(avpch1, MSG_BRW_FIRST_CHILD, &avpch2, NULL);
ogs_assert(ret == 0);
while (avpch2) {
ret = fd_msg_avp_hdr(avpch2, &hdr);
ogs_assert(ret == 0);
switch(hdr->avp_code) {
case S6A_AVP_CODE_CONTEXT_IDENTIFIER:
subscription_data->context_identifier =
hdr->avp_value->i32;
break;
case S6A_AVP_CODE_ALL_APN_CONFIG_INC_IND:
break;
case S6A_AVP_CODE_APN_CONFIGURATION:
{
pdn_t *pdn = &subscription_data->pdn[
subscription_data->num_of_pdn];
ogs_assert(pdn);
ret = fd_avp_search_avp(
avpch2, s6a_service_selection, &avpch3);
ogs_assert(ret == 0);
if (avpch3) {
ret = fd_msg_avp_hdr(avpch3, &hdr);
ogs_cpystrn(pdn->apn,
(char*)hdr->avp_value->os.data,
ogs_min(hdr->avp_value->os.len, MAX_APN_LEN)+1);
} else {
ogs_error("no_Service-Selection");
error++;
}
ret = fd_avp_search_avp(avpch2,
s6a_context_identifier, &avpch3);
ogs_assert(ret == 0);
if (avpch3) {
ret = fd_msg_avp_hdr(avpch3, &hdr);
pdn->context_identifier = hdr->avp_value->i32;
} else {
ogs_error("no_Context-Identifier");
error++;
}
ret = fd_avp_search_avp(avpch2, s6a_pdn_type, &avpch3);
ogs_assert(ret == 0);
if (avpch3) {
ret = fd_msg_avp_hdr(avpch3, &hdr);
pdn->pdn_type = hdr->avp_value->i32;
} else {
ogs_error("no_PDN-Type");
error++;
}
ret = fd_avp_search_avp(avpch2,
s6a_eps_subscribed_qos_profile, &avpch3);
ogs_assert(ret == 0);
if (avpch3) {
ret = fd_avp_search_avp(avpch3,
s6a_qos_class_identifier, &avpch4);
ogs_assert(ret == 0);
if (avpch4) {
ret = fd_msg_avp_hdr(avpch4, &hdr);
ogs_assert(ret == 0);
pdn->qos.qci = hdr->avp_value->i32;
} else {
ogs_error("no_QoS-Class-Identifier");
error++;
}
ret = fd_avp_search_avp(avpch3,
s6a_allocation_retention_priority, &avpch4);
ogs_assert(ret == 0);
if (avpch4) {
ret = fd_avp_search_avp(avpch4,
s6a_priority_level, &avpch5);
ogs_assert(ret == 0);
if (avpch5) {
ret = fd_msg_avp_hdr(avpch5, &hdr);
ogs_assert(ret == 0);
pdn->qos.arp.priority_level =
hdr->avp_value->i32;
} else {
ogs_error("no_ARP");
error++;
}
ret = fd_avp_search_avp(avpch4,
s6a_pre_emption_capability, &avpch5);
ogs_assert(ret == 0);
if (avpch5) {
ret = fd_msg_avp_hdr(avpch5, &hdr);
ogs_assert(ret == 0);
pdn->qos.arp.pre_emption_capability =
hdr->avp_value->i32;
} else {
ogs_error("no_Preemption-Capability");
error++;
}
ret = fd_avp_search_avp(avpch4,
s6a_pre_emption_vulnerability, &avpch5);
ogs_assert(ret == 0);
if (avpch5) {
ret = fd_msg_avp_hdr(avpch5, &hdr);
ogs_assert(ret == 0);
pdn->qos.arp.pre_emption_vulnerability =
hdr->avp_value->i32;
} else {
ogs_error("no_Preemption-Vulnerability");
error++;
}
} else {
ogs_error("no_QCI");
error++;
}
} else {
ogs_error("no_EPS-Subscribed-QoS-Profile");
error++;
}
ret = fd_avp_search_avp(avpch2,
fd_mip6_agent_info, &avpch3);
ogs_assert(ret == 0);
if (avpch3) {
ret = fd_msg_browse(avpch3,
MSG_BRW_FIRST_CHILD, &avpch4, NULL);
ogs_assert(ret == 0);
while (avpch4) {
ret = fd_msg_avp_hdr(avpch4, &hdr);
switch(hdr->avp_code) {
case S6A_AVP_CODE_MIP_HOME_AGENT_ADDRESS:
{
ogs_sockaddr_t addr;
ret = fd_msg_avp_value_interpret(avpch4,
&addr.sa);
ogs_assert(ret == 0);
if (addr.ogs_sa_family == AF_INET)
{
pdn->pgw_ip.ipv4 = 1;
pdn->pgw_ip.both.addr =
addr.sin.sin_addr.s_addr;
}
else if (addr.ogs_sa_family == AF_INET6)
{
pdn->pgw_ip.ipv6 = 1;
memcpy(pdn->pgw_ip.both.addr6,
addr.sin6.sin6_addr.s6_addr,
IPV6_LEN);
}
else
{
ogs_error("Invald family:%d",
addr.ogs_sa_family);
error++;
}
break;
}
default:
ogs_error("Unknown AVP-Code:%d",
hdr->avp_code);
error++;
break;
}
fd_msg_browse(avpch4, MSG_BRW_NEXT,
&avpch4, NULL);
}
}
ret = fd_avp_search_avp(avpch2, s6a_ambr, &avpch3);
ogs_assert(ret == 0);
if (avpch3) {
ret = fd_avp_search_avp(avpch3,
s6a_max_bandwidth_ul, &avpch4);
ogs_assert(ret == 0);
if (avpch4) {
ret = fd_msg_avp_hdr(avpch4, &hdr);
ogs_assert(ret == 0);
pdn->ambr.uplink = hdr->avp_value->u32;
} else {
ogs_error("no_Max-Bandwidth-UL");
error++;
}
ret = fd_avp_search_avp(avpch3,
s6a_max_bandwidth_dl, &avpch4);
ogs_assert(ret == 0);
if (avpch4) {
ret = fd_msg_avp_hdr(avpch4, &hdr);
ogs_assert(ret == 0);
pdn->ambr.downlink = hdr->avp_value->u32;
} else {
ogs_error("no_Max-Bandwidth-DL");
error++;
}
}
subscription_data->num_of_pdn++;
break;
}
default:
ogs_warn("Unknown AVP-code:%d", hdr->avp_code);
break;
}
fd_msg_browse(avpch2, MSG_BRW_NEXT, &avpch2, NULL);
}
} else {
ogs_error("no_APN-Configuration-Profile");
error++;
}
} else {
ogs_error("no_Subscription-Data");
error++;
}
ret = fd_msg_search_avp(*msg, s6a_subscribed_rau_tau_timer, &avp);
ogs_assert(ret == 0);
if (avp) {
ret = fd_msg_avp_hdr(avp, &hdr);
ogs_assert(ret == 0);
subscription_data->subscribed_rau_tau_timer = hdr->avp_value->i32;
} else {
ogs_error("no_Subscribed_RAU-TAU-Timer");
error++;
}
if (!error) {
int rv;
e = mme_event_new(MME_EVT_S6A_MESSAGE);
ogs_assert(e);
e->mme_ue = mme_ue;
e->pkbuf = s6abuf;
rv = ogs_queue_push(mme_self()->queue, e);
if (rv != OGS_OK) {
ogs_error("ogs_queue_push() failed:%d", (int)rv);
ogs_pkbuf_free(e->pkbuf);
mme_event_free(e);
} else {
ogs_pollset_notify(mme_self()->pollset);
}
}
/* Free the message */
ogs_assert(pthread_mutex_lock(&fd_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 (fd_logger_self()->stats.nb_recv) {
/* Ponderate in the avg */
fd_logger_self()->stats.avg = (fd_logger_self()->stats.avg *
fd_logger_self()->stats.nb_recv + dur) /
(fd_logger_self()->stats.nb_recv + 1);
/* Min, max */
if (dur < fd_logger_self()->stats.shortest)
fd_logger_self()->stats.shortest = dur;
if (dur > fd_logger_self()->stats.longest)
fd_logger_self()->stats.longest = dur;
} else {
fd_logger_self()->stats.shortest = dur;
fd_logger_self()->stats.longest = dur;
fd_logger_self()->stats.avg = dur;
}
if (error)
fd_logger_self()->stats.nb_errs++;
else
fd_logger_self()->stats.nb_recv++;
ogs_assert(pthread_mutex_unlock(&fd_logger_self()->stats_lock) == 0);
/* Display how long it took */
if (ts.tv_nsec > sess_data->ts.tv_nsec)
ogs_trace("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_trace("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_msg_free(*msg);
ogs_assert(ret == 0);
*msg = NULL;
state_cleanup(sess_data, NULL, NULL);
return;
}