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fix identation

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This commit is contained in:
Sukchan Lee
2019-06-16 19:09:31 +09:00
parent eab4958a81
commit 3b26983db9
6 changed files with 409 additions and 478 deletions
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278
src/mme/mme-sm.c
View File

@@ -1,3 +1,22 @@
/*
* 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 "asn1c/s1ap-message.h"
#include "nas/nas-message.h"
#include "gtp/gtp-xact.h"
@@ -40,50 +59,60 @@ void mme_state_operational(ogs_fsm_t *s, mme_event_t *e)
int rv;
char buf[OGS_ADDRSTRLEN];
ogs_sock_t *sock = NULL;
ogs_sockaddr_t *addr = NULL;
mme_enb_t *enb = NULL;
uint16_t max_num_of_ostreams = 0;
s1ap_message_t s1ap_message;
ogs_pkbuf_t *pkbuf = NULL;
int rc;
nas_message_t nas_message;
enb_ue_t *enb_ue = NULL;
mme_ue_t *mme_ue = NULL;
mme_bearer_t *bearer = NULL;
mme_bearer_t *default_bearer = NULL;
mme_sess_t *sess = NULL;
ogs_pkbuf_t *s6abuf = NULL;
s6a_message_t *s6a_message = NULL;
gtp_xact_t *xact = NULL;
gtp_message_t gtp_message;
ogs_assert(e);
mme_sm_debug(e);
ogs_assert(s);
switch (e->id)
{
switch (e->id) {
case OGS_FSM_ENTRY_SIG:
{
rv = mme_gtp_open();
if (rv != OGS_OK)
{
if (rv != OGS_OK) {
ogs_error("Can't establish S11-GTP path");
break;
}
rv = sgsap_open();
if (rv != OGS_OK)
{
if (rv != OGS_OK) {
ogs_error("Can't establish SGsAP path");
break;
}
rv = s1ap_open();
if (rv != OGS_OK)
{
if (rv != OGS_OK) {
ogs_error("Can't establish S1AP path");
break;
}
break;
}
case OGS_FSM_EXIT_SIG:
{
mme_gtp_close();
sgsap_close();
s1ap_close();
break;
}
case MME_EVT_S1AP_LO_ACCEPT:
{
ogs_sock_t *sock = NULL;
ogs_sockaddr_t *addr = NULL;
mme_enb_t *enb = NULL;
sock = e->enb_sock;
ogs_assert(sock);
addr = e->enb_addr;
@@ -93,13 +122,10 @@ void mme_state_operational(ogs_fsm_t *s, mme_event_t *e)
OGS_ADDR(addr, buf));
enb = mme_enb_find_by_addr(addr);
if (!enb)
{
if (!enb) {
enb = mme_enb_add(sock, addr);
ogs_assert(enb);
}
else
{
} else {
ogs_warn("eNB context duplicated with IP-address [%s]!!!",
OGS_ADDR(addr, buf));
ogs_sock_destroy(sock);
@@ -107,14 +133,7 @@ void mme_state_operational(ogs_fsm_t *s, mme_event_t *e)
}
break;
}
case MME_EVT_S1AP_LO_SCTP_COMM_UP:
{
ogs_sock_t *sock = NULL;
ogs_sockaddr_t *addr = NULL;
mme_enb_t *enb = NULL;
uint16_t max_num_of_ostreams = 0;
sock = e->enb_sock;
ogs_assert(sock);
addr = e->enb_addr;
@@ -123,13 +142,10 @@ void mme_state_operational(ogs_fsm_t *s, mme_event_t *e)
max_num_of_ostreams = e->max_num_of_ostreams;
enb = mme_enb_find_by_addr(addr);
if (!enb)
{
if (!enb) {
enb = mme_enb_add(sock, addr);
ogs_assert(enb);
}
else
{
} else {
ogs_free(addr);
}
@@ -140,13 +156,7 @@ void mme_state_operational(ogs_fsm_t *s, mme_event_t *e)
OGS_ADDR(addr, buf), enb->max_num_of_ostreams);
break;
}
case MME_EVT_S1AP_LO_CONNREFUSED:
{
ogs_sock_t *sock = NULL;
ogs_sockaddr_t *addr = NULL;
mme_enb_t *enb = NULL;
sock = e->enb_sock;
ogs_assert(sock);
addr = e->enb_addr;
@@ -155,29 +165,17 @@ void mme_state_operational(ogs_fsm_t *s, mme_event_t *e)
enb = mme_enb_find_by_addr(addr);
ogs_free(addr);
if (enb)
{
if (enb) {
ogs_info("eNB-S1[%s] connection refused!!!",
OGS_ADDR(addr, buf));
mme_enb_remove(enb);
}
else
{
} else {
ogs_warn("Socket[%s] connection refused, Already Removed!",
OGS_ADDR(addr, buf));
}
break;
}
case MME_EVT_S1AP_MESSAGE:
{
s1ap_message_t message;
mme_enb_t *enb = NULL;
ogs_sock_t *sock = NULL;
ogs_sockaddr_t *addr = NULL;
ogs_pkbuf_t *pkbuf = NULL;
int rc;
sock = e->enb_sock;
ogs_assert(sock);
addr = e->enb_addr;
@@ -191,46 +189,32 @@ void mme_state_operational(ogs_fsm_t *s, mme_event_t *e)
ogs_assert(enb);
ogs_assert(OGS_FSM_STATE(&enb->sm));
rc = s1ap_decode_pdu(&message, pkbuf);
if (rc == OGS_OK)
{
rc = s1ap_decode_pdu(&s1ap_message, pkbuf);
if (rc == OGS_OK) {
e->enb = enb;
e->s1ap_message = &message;
e->s1ap_message = &s1ap_message;
ogs_fsm_dispatch(&enb->sm, e);
}
else
{
} else {
ogs_error("Cannot process S1AP message");
}
s1ap_free_pdu(&message);
s1ap_free_pdu(&s1ap_message);
ogs_pkbuf_free(pkbuf);
break;
}
case MME_EVT_EMM_MESSAGE:
{
nas_message_t message;
ogs_pkbuf_t *pkbuf = NULL;
enb_ue_t *enb_ue = NULL;
mme_ue_t *mme_ue = NULL;
enb_ue = e->enb_ue;
ogs_assert(enb_ue);
pkbuf = e->pkbuf;
ogs_assert(pkbuf);
ogs_assert(nas_emm_decode(&message, pkbuf) == OGS_OK);
ogs_assert(nas_emm_decode(&nas_message, pkbuf) == OGS_OK);
mme_ue = enb_ue->mme_ue;
if (!mme_ue)
{
mme_ue = mme_ue_find_by_message(&message);
if (!mme_ue)
{
if (!mme_ue) {
mme_ue = mme_ue_find_by_message(&nas_message);
if (!mme_ue) {
mme_ue = mme_ue_add(enb_ue);
ogs_assert(mme_ue);
}
else
{
} else {
/* Here, if the MME_UE Context is found,
* the integrity check is not performed
* For example, ATTACH_REQUEST,
@@ -239,21 +223,18 @@ void mme_state_operational(ogs_fsm_t *s, mme_event_t *e)
* Now, We will check the MAC in the NAS message*/
nas_security_header_type_t h;
h.type = e->nas_type;
if (h.integrity_protected)
{
if (h.integrity_protected) {
/* Decryption was performed in S1AP handler.
* So, we disabled 'ciphered'
* not to decrypt NAS message */
h.ciphered = 0;
ogs_assert(
nas_security_decode(mme_ue, h, pkbuf) == OGS_OK);
ogs_assert(nas_security_decode(mme_ue, h, pkbuf) == OGS_OK);
}
}
/* If NAS(mme_ue_t) has already been associated with
* older S1(enb_ue_t) context */
if (ECM_CONNECTED(mme_ue))
{
if (ECM_CONNECTED(mme_ue)) {
/* Implcit S1 release */
ogs_debug("Implicit S1 release");
ogs_debug(" ENB_UE_S1AP_ID[%d] MME_UE_S1AP_ID[%d]",
@@ -269,11 +250,10 @@ void mme_state_operational(ogs_fsm_t *s, mme_event_t *e)
ogs_assert(OGS_FSM_STATE(&mme_ue->sm));
e->mme_ue = mme_ue;
e->nas_message = &message;
e->nas_message = &nas_message;
ogs_fsm_dispatch(&mme_ue->sm, e);
if (OGS_FSM_CHECK(&mme_ue->sm, emm_state_exception))
{
if (OGS_FSM_CHECK(&mme_ue->sm, emm_state_exception)) {
rv = mme_send_delete_session_or_ue_context_release(
mme_ue, enb_ue);
ogs_assert(rv == OGS_OK);
@@ -281,24 +261,15 @@ void mme_state_operational(ogs_fsm_t *s, mme_event_t *e)
ogs_pkbuf_free(pkbuf);
break;
}
case MME_EVT_ESM_MESSAGE:
{
nas_message_t message;
mme_ue_t *mme_ue = NULL;
mme_bearer_t *bearer = NULL;
mme_bearer_t *default_bearer = NULL;
mme_sess_t *sess = NULL;
ogs_pkbuf_t *pkbuf = NULL;
mme_ue = e->mme_ue;
ogs_assert(mme_ue);
pkbuf = e->pkbuf;
ogs_assert(pkbuf);
ogs_assert(nas_esm_decode(&message, pkbuf) == OGS_OK);
ogs_assert(nas_esm_decode(&nas_message, pkbuf) == OGS_OK);
bearer = mme_bearer_find_or_add_by_message(mme_ue, &message);
bearer = mme_bearer_find_or_add_by_message(mme_ue, &nas_message);
ogs_assert(bearer);
sess = bearer->sess;
ogs_assert(sess);
@@ -306,12 +277,10 @@ void mme_state_operational(ogs_fsm_t *s, mme_event_t *e)
ogs_assert(default_bearer);
e->bearer = bearer;
e->nas_message = &message;
e->nas_message = &nas_message;
ogs_fsm_dispatch(&bearer->sm, e);
if (OGS_FSM_CHECK(&bearer->sm,
esm_state_bearer_deactivated)) {
if (OGS_FSM_CHECK(&bearer->sm, esm_state_bearer_deactivated)) {
if (default_bearer->ebi == bearer->ebi) {
/* if the bearer is a default bearer,
* remove all session context linked the default bearer */
@@ -322,15 +291,11 @@ void mme_state_operational(ogs_fsm_t *s, mme_event_t *e)
mme_bearer_remove(bearer);
}
} else if (OGS_FSM_CHECK(&bearer->sm,
esm_state_pdn_did_disconnect)) {
} else if (OGS_FSM_CHECK(&bearer->sm, esm_state_pdn_did_disconnect)) {
ogs_assert(default_bearer->ebi == bearer->ebi);
mme_sess_remove(sess);
} else if (OGS_FSM_CHECK(&bearer->sm,
esm_state_exception)) {
} else if (OGS_FSM_CHECK(&bearer->sm, esm_state_exception)) {
/*
* [Enhancement] - Probably Invalid APN
* At this point, we'll forcely release UE context
@@ -342,14 +307,7 @@ void mme_state_operational(ogs_fsm_t *s, mme_event_t *e)
ogs_pkbuf_free(pkbuf);
break;
}
case MME_EVT_S6A_MESSAGE:
{
int rv;
mme_ue_t *mme_ue = NULL;
ogs_pkbuf_t *s6abuf = NULL;
s6a_message_t *s6a_message = NULL;
mme_ue = e->mme_ue;
ogs_assert(mme_ue);
s6abuf = e->pkbuf;
@@ -357,8 +315,7 @@ void mme_state_operational(ogs_fsm_t *s, mme_event_t *e)
s6a_message = s6abuf->data;
ogs_assert(s6a_message);
if (s6a_message->result_code != ER_DIAMETER_SUCCESS)
{
if (s6a_message->result_code != ER_DIAMETER_SUCCESS) {
enb_ue_t *enb_ue = NULL;
rv = nas_send_attach_reject(mme_ue,
@@ -379,122 +336,93 @@ void mme_state_operational(ogs_fsm_t *s, mme_event_t *e)
break;
}
switch(s6a_message->cmd_code)
{
switch (s6a_message->cmd_code) {
case S6A_CMD_CODE_AUTHENTICATION_INFORMATION:
{
mme_s6a_handle_aia(mme_ue, &s6a_message->aia_message);
break;
}
case S6A_CMD_CODE_UPDATE_LOCATION:
{
mme_s6a_handle_ula(mme_ue, &s6a_message->ula_message);
if (OGS_FSM_CHECK(&mme_ue->sm,
emm_state_initial_context_setup))
{
if (mme_ue->nas_eps.type == MME_EPS_TYPE_ATTACH_REQUEST)
{
if (OGS_FSM_CHECK(&mme_ue->sm, emm_state_initial_context_setup)) {
if (mme_ue->nas_eps.type == MME_EPS_TYPE_ATTACH_REQUEST) {
rv = nas_send_emm_to_esm(mme_ue,
&mme_ue->pdn_connectivity_request);
ogs_assert(rv == OGS_OK);
}
else
{
} else {
ogs_fatal("Invalid Type[%d]", mme_ue->nas_eps.type);
ogs_assert_if_reached();
}
}
else if (OGS_FSM_CHECK(&mme_ue->sm, emm_state_registered))
{
if (mme_ue->nas_eps.type == MME_EPS_TYPE_TAU_REQUEST)
{
else if (OGS_FSM_CHECK(&mme_ue->sm, emm_state_registered)) {
if (mme_ue->nas_eps.type == MME_EPS_TYPE_TAU_REQUEST) {
rv = nas_send_tau_accept(mme_ue,
S1AP_ProcedureCode_id_InitialContextSetup);
ogs_assert(rv == OGS_OK);
}
else if (mme_ue->nas_eps.type ==
MME_EPS_TYPE_SERVICE_REQUEST)
{
} else if (mme_ue->nas_eps.type ==
MME_EPS_TYPE_SERVICE_REQUEST) {
rv = s1ap_send_initial_context_setup_request(
mme_ue);
ogs_assert(rv == OGS_OK);
}
else
{
} else {
ogs_fatal("Invalid Type[%d]", mme_ue->nas_eps.type);
ogs_assert_if_reached();
}
}
else
} else
ogs_assert_if_reached();
break;
}
default:
{
ogs_error("Invalid Type[%d]", s6a_message->cmd_code);
break;
}
}
ogs_pkbuf_free(s6abuf);
break;
}
case MME_EVT_S11_MESSAGE:
{
int rv;
ogs_pkbuf_t *pkbuf = NULL;
gtp_xact_t *xact = NULL;
gtp_message_t message;
mme_ue_t *mme_ue = NULL;
pkbuf = e->pkbuf;
ogs_assert(pkbuf);
rv = gtp_parse_msg(&message, pkbuf);
rv = gtp_parse_msg(&gtp_message, pkbuf);
ogs_assert(rv == OGS_OK);
mme_ue = mme_ue_find_by_teid(message.h.teid);
mme_ue = mme_ue_find_by_teid(gtp_message.h.teid);
ogs_assert(mme_ue);
rv = gtp_xact_receive(mme_ue->gnode, &message.h, &xact);
if (rv != OGS_OK)
{
rv = gtp_xact_receive(mme_ue->gnode, &gtp_message.h, &xact);
if (rv != OGS_OK) {
ogs_pkbuf_free(pkbuf);
break;
}
switch(message.h.type)
{
switch (gtp_message.h.type) {
case GTP_CREATE_SESSION_RESPONSE_TYPE:
mme_s11_handle_create_session_response(
xact, mme_ue, &message.create_session_response);
xact, mme_ue, &gtp_message.create_session_response);
break;
case GTP_MODIFY_BEARER_RESPONSE_TYPE:
mme_s11_handle_modify_bearer_response(
xact, mme_ue, &message.modify_bearer_response);
xact, mme_ue, &gtp_message.modify_bearer_response);
break;
case GTP_DELETE_SESSION_RESPONSE_TYPE:
mme_s11_handle_delete_session_response(
xact, mme_ue, &message.delete_session_response);
xact, mme_ue, &gtp_message.delete_session_response);
break;
case GTP_CREATE_BEARER_REQUEST_TYPE:
mme_s11_handle_create_bearer_request(
xact, mme_ue, &message.create_bearer_request);
xact, mme_ue, &gtp_message.create_bearer_request);
break;
case GTP_UPDATE_BEARER_REQUEST_TYPE:
mme_s11_handle_update_bearer_request(
xact, mme_ue, &message.update_bearer_request);
xact, mme_ue, &gtp_message.update_bearer_request);
break;
case GTP_DELETE_BEARER_REQUEST_TYPE:
mme_s11_handle_delete_bearer_request(
xact, mme_ue, &message.delete_bearer_request);
xact, mme_ue, &gtp_message.delete_bearer_request);
break;
case GTP_RELEASE_ACCESS_BEARERS_RESPONSE_TYPE:
mme_s11_handle_release_access_bearers_response(
xact, mme_ue, &message.release_access_bearers_response);
xact, mme_ue, &gtp_message.release_access_bearers_response);
break;
case GTP_DOWNLINK_DATA_NOTIFICATION_TYPE:
mme_s11_handle_downlink_data_notification(
xact, mme_ue, &message.downlink_data_notification);
xact, mme_ue, &gtp_message.downlink_data_notification);
/*
* 5.3.4.2 in Spec 23.401
@@ -510,8 +438,7 @@ void mme_state_operational(ogs_fsm_t *s, mme_event_t *e)
* If the MME receives a Downlink Data Notification after step 2 and
* before step 9, the MME shall not send S1 interface paging messages
*/
if (ECM_IDLE(mme_ue))
{
if (ECM_IDLE(mme_ue)) {
s1ap_handle_paging(mme_ue);
/* Start T3413 */
ogs_timer_start(mme_ue->t3413, mme_self()->t3413_value);
@@ -520,24 +447,21 @@ void mme_state_operational(ogs_fsm_t *s, mme_event_t *e)
case GTP_CREATE_INDIRECT_DATA_FORWARDING_TUNNEL_RESPONSE_TYPE:
mme_s11_handle_create_indirect_data_forwarding_tunnel_response(
xact, mme_ue,
&message.create_indirect_data_forwarding_tunnel_response);
&gtp_message.create_indirect_data_forwarding_tunnel_response);
break;
case GTP_DELETE_INDIRECT_DATA_FORWARDING_TUNNEL_RESPONSE_TYPE:
mme_s11_handle_delete_indirect_data_forwarding_tunnel_response(
xact, mme_ue,
&message.delete_indirect_data_forwarding_tunnel_response);
&gtp_message.delete_indirect_data_forwarding_tunnel_response);
break;
default:
ogs_warn("Not implmeneted(type:%d)", message.h.type);
ogs_warn("Not implmeneted(type:%d)", gtp_message.h.type);
break;
}
ogs_pkbuf_free(pkbuf);
break;
}
default:
{
ogs_error("No handler for event %s", mme_event_get_name(e));
break;
}
}
}

4
src/mme/sgsap-lkpath.c
View File

@@ -37,8 +37,8 @@ ogs_sock_t *sgsap_client(ogs_socknode_t *node)
ogs_socknode_set_poll(node, mme_self()->pollset,
OGS_POLLIN, sgsap_recv_handler, node);
ogs_sctp_client(SOCK_STREAM, node);
sock = ogs_sctp_client(SOCK_STREAM, node);
if (sock)
ogs_info("sgsap client() [%s]:%d",
OGS_ADDR(node->addr, buf), OGS_PORT(node->addr));

23
src/mme/sgsap-path.c
View File

@@ -51,29 +51,6 @@ void sgsap_close()
}
}
void sgsap_connect_timeout(void *data)
{
#if 0
mme_vlr_t *vlr = data;
ogs_assert(vlr);
if (mme_ue->max_paging_retry >= MAX_NUM_OF_PAGING) {
/* Paging failed */
ogs_warn("[EMM] Paging to IMSI[%s] failed. Stop paging",
mme_ue->imsi_bcd);
if (mme_ue->last_paging_msg) {
ogs_pkbuf_free(mme_ue->last_paging_msg);
mme_ue->last_paging_msg = NULL;
}
} else {
mme_ue->max_paging_retry++;
s1ap_handle_paging(mme_ue);
/* Start T3413 */
ogs_timer_start(mme_ue->t3413, mme_self()->t3413_value);
}
#endif
}
int sgsap_send(ogs_sock_t *sock, ogs_pkbuf_t *pkbuf,
ogs_sockaddr_t *addr, uint16_t stream_no)
{

2
src/mme/sgsap-path.h
View File

@@ -32,8 +32,6 @@ void sgsap_close(void);
ogs_sock_t *sgsap_client(ogs_socknode_t *node);
void sgsap_recv_handler(short when, ogs_socket_t fd, void *data);
void sgsap_connect_timeout(void *data);
int sgsap_send(ogs_sock_t *sock,
ogs_pkbuf_t *pkbuf, ogs_sockaddr_t *addr, uint16_t stream_no);
int sgsap_recv(ogs_sock_t *sock, ogs_pkbuf_t *pkbuf);

39
src/mme/sgsap-sm.c
View File

@@ -17,12 +17,16 @@
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*/
#include "ogs-sctp.h"
#include "mme-context.h"
#include "mme-event.h"
#include "mme-sm.h"
#include "sgsap-path.h"
static void sgsap_connect_timeout(void *data);
void sgsap_state_initial(ogs_fsm_t *s, mme_event_t *e)
{
mme_vlr_t *vlr = NULL;
@@ -66,14 +70,16 @@ void sgsap_state_will_connect(ogs_fsm_t *s, mme_event_t *e)
vlr = e->vlr;
ogs_assert(vlr);
ogs_assert(vlr->t_conn);
ogs_assert(vlr->node);
switch (e->id) {
case OGS_FSM_ENTRY_SIG:
ogs_assert(vlr->node);
ogs_timer_start(vlr->t_conn, mme_self()->t_conn_value);
sgsap_client(vlr->node);
break;
case OGS_FSM_EXIT_SIG:
break;
case MME_EVT_SGSAP_MESSAGE:
ogs_timer_stop(vlr->t_conn);
break;
default:
ogs_error("Unknown event %s", mme_event_get_name(e));
@@ -119,3 +125,30 @@ void sgsap_state_exception(ogs_fsm_t *s, mme_event_t *e)
}
}
static void sgsap_connect_timeout(void *data)
{
char buf[OGS_ADDRSTRLEN];
mme_vlr_t *vlr = data;
ogs_socknode_t *node = NULL;
ogs_sockaddr_t *addr = NULL;
ogs_assert(vlr);
node = vlr->node;
ogs_assert(node);
addr = node->addr;
ogs_assert(addr);
ogs_warn("[SGsAP] Connect to VLR[%s]:%d failed",
OGS_ADDR(addr, buf), OGS_PORT(addr));
ogs_assert(vlr->t_conn);
ogs_timer_start(vlr->t_conn, mme_self()->t_conn_value);
ogs_assert(vlr->node->sock);
ogs_sctp_destroy(vlr->node->sock);
ogs_assert(vlr->node);
sgsap_client(vlr->node);
}

3
src/mme/sgsap-usrpath.c
View File

@@ -42,8 +42,7 @@ ogs_sock_t *sgsap_client(ogs_socknode_t *node)
OGS_POLLIN, sgsap_usrsctp_recv_handler, node);
sock = ogs_sctp_client(SOCK_SEQPACKET, node);
ogs_assert(sock);
if (sock)
ogs_info("sgsap_client() [%s]:%d",
OGS_ADDR(node->addr, buf), OGS_PORT(node->addr));