mirror of
				https://github.com/open5gs/open5gs.git
				synced 2025-11-03 21:43:25 +00:00 
			
		
		
		
	[CSFB] Create a state machine
This commit is contained in:
		@@ -5,8 +5,9 @@ noinst_LTLIBRARIES = libmme.la
 | 
			
		||||
libmme_la_SOURCES = \
 | 
			
		||||
	mme-kdf.h kasumi.h snow-3g.h zuc.h \
 | 
			
		||||
    mme-event.h mme-context.h \
 | 
			
		||||
	s1ap-build.h s1ap-handler.h s1ap-conv.h s1ap-path.h \
 | 
			
		||||
	ogs-sctp.h \
 | 
			
		||||
	s1ap-build.h s1ap-handler.h s1ap-conv.h s1ap-path.h \
 | 
			
		||||
	sgsap-path.h \
 | 
			
		||||
	mme-fd-path.h mme-s6a-handler.h \
 | 
			
		||||
	nas-conv.h nas-security.h nas-path.h \
 | 
			
		||||
	emm-handler.h emm-build.h \
 | 
			
		||||
@@ -15,8 +16,9 @@ libmme_la_SOURCES = \
 | 
			
		||||
	mme-sm.h mme-path.h \
 | 
			
		||||
	mme-kdf.c kasumi.c snow-3g.c zuc.c \
 | 
			
		||||
    mme-init.c mme-event.c mme-context.c \
 | 
			
		||||
	s1ap-sm.c s1ap-build.c s1ap-handler.c s1ap-conv.c s1ap-path.c \
 | 
			
		||||
	ogs-sctp.c \
 | 
			
		||||
	s1ap-sm.c s1ap-build.c s1ap-handler.c s1ap-conv.c s1ap-path.c \
 | 
			
		||||
	sgsap-sm.c sgsap-path.c \
 | 
			
		||||
	mme-fd-path.c mme-s6a-handler.c \
 | 
			
		||||
	nas-conv.c nas-security.c nas-path.c \
 | 
			
		||||
	emm-sm.c emm-handler.c emm-build.c \
 | 
			
		||||
@@ -27,7 +29,7 @@ libmme_la_SOURCES = \
 | 
			
		||||
	$(NULL)
 | 
			
		||||
 | 
			
		||||
if WITH_USRSCTP
 | 
			
		||||
libmme_la_SOURCES += ogs-usrsctp.c s1ap-usrpath.c
 | 
			
		||||
libmme_la_SOURCES += ogs-usrsctp.c s1ap-usrpath.c sgsap-usrpath.c
 | 
			
		||||
else
 | 
			
		||||
libmme_la_SOURCES += ogs-lksctp.c s1ap-lkpath.c
 | 
			
		||||
endif
 | 
			
		||||
 
 | 
			
		||||
@@ -1174,9 +1174,10 @@ int mme_context_parse_config()
 | 
			
		||||
 | 
			
		||||
                        plmn_id_build(&plmn_id,
 | 
			
		||||
                            atoi(mcc), atoi(mnc), strlen(mnc));
 | 
			
		||||
                        nas_from_plmn_id(&vlr->nas_plmn_id, &plmn_id);
 | 
			
		||||
                        vlr->tac = atoi(tac);
 | 
			
		||||
                        vlr->lac = atoi(lac);
 | 
			
		||||
                        nas_from_plmn_id(&vlr->tai.plmn_id, &plmn_id);
 | 
			
		||||
                        vlr->tai.tac = atoi(tac);
 | 
			
		||||
                        nas_from_plmn_id(&vlr->lai.plmn_id, &plmn_id);
 | 
			
		||||
                        vlr->lai.lac = atoi(lac);
 | 
			
		||||
                    } while (ogs_yaml_iter_type(&sgsap_array) ==
 | 
			
		||||
                            YAML_SEQUENCE_NODE);
 | 
			
		||||
                } else
 | 
			
		||||
@@ -1552,6 +1553,32 @@ void mme_vlr_remove_all()
 | 
			
		||||
        mme_vlr_remove(vlr);
 | 
			
		||||
}
 | 
			
		||||
 | 
			
		||||
mme_vlr_t *mme_vlr_find_by_tai(nas_tai_t *tai)
 | 
			
		||||
{
 | 
			
		||||
    mme_vlr_t *vlr = NULL;
 | 
			
		||||
    ogs_assert(tai);
 | 
			
		||||
 | 
			
		||||
    ogs_list_for_each(&self.vlr_list, vlr) {
 | 
			
		||||
        if (memcmp(&vlr->tai, tai, sizeof *tai) == 0)
 | 
			
		||||
            return vlr;
 | 
			
		||||
    }
 | 
			
		||||
 | 
			
		||||
    return NULL;
 | 
			
		||||
}
 | 
			
		||||
 | 
			
		||||
mme_vlr_t *mme_vlr_find_by_lai(nas_lai_t *lai)
 | 
			
		||||
{
 | 
			
		||||
    mme_vlr_t *vlr = NULL;
 | 
			
		||||
    ogs_assert(lai);
 | 
			
		||||
 | 
			
		||||
    ogs_list_for_each(&self.vlr_list, vlr) {
 | 
			
		||||
        if (memcmp(&vlr->lai, lai, sizeof *lai) == 0)
 | 
			
		||||
            return vlr;
 | 
			
		||||
    }
 | 
			
		||||
 | 
			
		||||
    return NULL;
 | 
			
		||||
}
 | 
			
		||||
 | 
			
		||||
mme_enb_t *mme_enb_add(ogs_sock_t *sock, ogs_sockaddr_t *addr)
 | 
			
		||||
{
 | 
			
		||||
    mme_enb_t *enb = NULL;
 | 
			
		||||
 
 | 
			
		||||
@@ -169,9 +169,8 @@ typedef struct mme_pgw_s {
 | 
			
		||||
typedef struct mme_vlr_s {
 | 
			
		||||
    ogs_lnode_t     lnode;
 | 
			
		||||
 | 
			
		||||
    nas_plmn_id_t   nas_plmn_id;
 | 
			
		||||
    uint16_t        tac;
 | 
			
		||||
    uint16_t        lac;
 | 
			
		||||
    nas_tai_t       tai;
 | 
			
		||||
    nas_lai_t       lai;
 | 
			
		||||
 | 
			
		||||
    ogs_socknode_t  *node;
 | 
			
		||||
} mme_vlr_t;
 | 
			
		||||
@@ -546,6 +545,8 @@ ogs_sockaddr_t *mme_pgw_addr_find_by_apn(
 | 
			
		||||
mme_vlr_t *mme_vlr_add(ogs_sockaddr_t *addr);
 | 
			
		||||
void mme_vlr_remove(mme_vlr_t *vlr);
 | 
			
		||||
void mme_vlr_remove_all();
 | 
			
		||||
mme_vlr_t *mme_vlr_find_by_tai(nas_tai_t *tai);
 | 
			
		||||
mme_vlr_t *mme_vlr_find_by_lai(nas_lai_t *lai);
 | 
			
		||||
 | 
			
		||||
mme_enb_t *mme_enb_add(ogs_sock_t *sock, ogs_sockaddr_t *addr);
 | 
			
		||||
int mme_enb_remove(mme_enb_t *enb);
 | 
			
		||||
 
 | 
			
		||||
@@ -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 "mme-event.h"
 | 
			
		||||
#include "mme-context.h"
 | 
			
		||||
 | 
			
		||||
@@ -72,38 +91,41 @@ const char *mme_event_get_name(mme_event_t *e)
 | 
			
		||||
    if (e == NULL)
 | 
			
		||||
        return OGS_FSM_NAME_INIT_SIG;
 | 
			
		||||
 | 
			
		||||
    switch (e->id)
 | 
			
		||||
    {
 | 
			
		||||
        case OGS_FSM_ENTRY_SIG: 
 | 
			
		||||
            return OGS_FSM_NAME_ENTRY_SIG;
 | 
			
		||||
        case OGS_FSM_EXIT_SIG: 
 | 
			
		||||
            return OGS_FSM_NAME_EXIT_SIG;
 | 
			
		||||
    switch (e->id) {
 | 
			
		||||
    case OGS_FSM_ENTRY_SIG: 
 | 
			
		||||
        return OGS_FSM_NAME_ENTRY_SIG;
 | 
			
		||||
    case OGS_FSM_EXIT_SIG: 
 | 
			
		||||
        return OGS_FSM_NAME_EXIT_SIG;
 | 
			
		||||
 | 
			
		||||
        case MME_EVT_S1AP_MESSAGE:
 | 
			
		||||
            return "MME_EVT_S1AP_MESSAGE";
 | 
			
		||||
        case MME_EVT_S1AP_DELAYED_SEND:
 | 
			
		||||
            return "MME_EVT_S1AP_DELAYED_SEND";
 | 
			
		||||
        case MME_EVT_S1AP_LO_ACCEPT:
 | 
			
		||||
            return "MME_EVT_S1AP_LO_ACCEPT";
 | 
			
		||||
        case MME_EVT_S1AP_LO_SCTP_COMM_UP:
 | 
			
		||||
            return "MME_EVT_S1AP_LO_SCTP_COMM_UP";
 | 
			
		||||
        case MME_EVT_S1AP_LO_CONNREFUSED:
 | 
			
		||||
            return "MME_EVT_S1AP_LO_CONNREFUSED";
 | 
			
		||||
    case MME_EVT_S1AP_MESSAGE:
 | 
			
		||||
        return "MME_EVT_S1AP_MESSAGE";
 | 
			
		||||
    case MME_EVT_S1AP_DELAYED_SEND:
 | 
			
		||||
        return "MME_EVT_S1AP_DELAYED_SEND";
 | 
			
		||||
    case MME_EVT_S1AP_LO_ACCEPT:
 | 
			
		||||
        return "MME_EVT_S1AP_LO_ACCEPT";
 | 
			
		||||
    case MME_EVT_S1AP_LO_SCTP_COMM_UP:
 | 
			
		||||
        return "MME_EVT_S1AP_LO_SCTP_COMM_UP";
 | 
			
		||||
    case MME_EVT_S1AP_LO_CONNREFUSED:
 | 
			
		||||
        return "MME_EVT_S1AP_LO_CONNREFUSED";
 | 
			
		||||
 | 
			
		||||
        case MME_EVT_EMM_MESSAGE:
 | 
			
		||||
            return "MME_EVT_EMM_MESSAGE";
 | 
			
		||||
    case MME_EVT_EMM_MESSAGE:
 | 
			
		||||
        return "MME_EVT_EMM_MESSAGE";
 | 
			
		||||
    case MME_EVT_ESM_MESSAGE:
 | 
			
		||||
        return "MME_EVT_ESM_MESSAGE";
 | 
			
		||||
    case MME_EVT_S11_MESSAGE:
 | 
			
		||||
        return "MME_EVT_S11_MESSAGE";
 | 
			
		||||
    case MME_EVT_S6A_MESSAGE:
 | 
			
		||||
        return "MME_EVT_S6A_MESSAGE";
 | 
			
		||||
 | 
			
		||||
        case MME_EVT_ESM_MESSAGE:
 | 
			
		||||
            return "MME_EVT_ESM_MESSAGE";
 | 
			
		||||
    case MME_EVT_SGSAP_MESSAGE:
 | 
			
		||||
        return "MME_EVT_SGSAP_MESSAGE";
 | 
			
		||||
    case MME_EVT_SGSAP_LO_WILL_CONNECT:
 | 
			
		||||
        return "MME_EVT_SGSAP_LO_WILL_CONNECT";
 | 
			
		||||
    case MME_EVT_SGSAP_LO_CONNECTED:
 | 
			
		||||
        return "MME_EVT_SGSAP_LO_CONNECTED";
 | 
			
		||||
 | 
			
		||||
        case MME_EVT_S11_MESSAGE:
 | 
			
		||||
            return "MME_EVT_S11_MESSAGE";
 | 
			
		||||
 | 
			
		||||
        case MME_EVT_S6A_MESSAGE:
 | 
			
		||||
            return "MME_EVT_S6A_MESSAGE";
 | 
			
		||||
 | 
			
		||||
        default: 
 | 
			
		||||
           break;
 | 
			
		||||
    default: 
 | 
			
		||||
       break;
 | 
			
		||||
    }
 | 
			
		||||
 | 
			
		||||
    return "UNKNOWN_EVENT";
 | 
			
		||||
 
 | 
			
		||||
@@ -1,11 +1,30 @@
 | 
			
		||||
#ifndef __MME_EVENT_H__
 | 
			
		||||
#define __MME_EVENT_H__
 | 
			
		||||
/*
 | 
			
		||||
 * 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/>.
 | 
			
		||||
 */
 | 
			
		||||
 | 
			
		||||
#ifndef MME_EVENT_H
 | 
			
		||||
#define MME_EVENT_H
 | 
			
		||||
 | 
			
		||||
#include "ogs-core.h"
 | 
			
		||||
 | 
			
		||||
#ifdef __cplusplus
 | 
			
		||||
extern "C" {
 | 
			
		||||
#endif /* __cplusplus */
 | 
			
		||||
#endif
 | 
			
		||||
 | 
			
		||||
/* forward declaration */
 | 
			
		||||
typedef enum {
 | 
			
		||||
@@ -22,6 +41,10 @@ typedef enum {
 | 
			
		||||
    MME_EVT_S11_MESSAGE,
 | 
			
		||||
    MME_EVT_S6A_MESSAGE,
 | 
			
		||||
 | 
			
		||||
    MME_EVT_SGSAP_MESSAGE,
 | 
			
		||||
    MME_EVT_SGSAP_LO_WILL_CONNECT,
 | 
			
		||||
    MME_EVT_SGSAP_LO_CONNECTED,
 | 
			
		||||
 | 
			
		||||
    MME_EVT_TOP,
 | 
			
		||||
 | 
			
		||||
} mme_event_e;
 | 
			
		||||
@@ -72,6 +95,6 @@ const char *mme_event_get_name(mme_event_t *e);
 | 
			
		||||
 | 
			
		||||
#ifdef __cplusplus
 | 
			
		||||
}
 | 
			
		||||
#endif /* __cplusplus */
 | 
			
		||||
#endif
 | 
			
		||||
 | 
			
		||||
#endif /* __MME_EVENT_H__ */
 | 
			
		||||
#endif /* MME_EVENT_H */
 | 
			
		||||
 
 | 
			
		||||
@@ -54,6 +54,12 @@ void esm_state_pdn_did_disconnect(ogs_fsm_t *s, mme_event_t *e);
 | 
			
		||||
void esm_state_bearer_deactivated(ogs_fsm_t *s, mme_event_t *e);
 | 
			
		||||
void esm_state_exception(ogs_fsm_t *s, mme_event_t *e);
 | 
			
		||||
 | 
			
		||||
void sgsap_state_initial(ogs_fsm_t *s, mme_event_t *e);
 | 
			
		||||
void sgsap_state_final(ogs_fsm_t *s, mme_event_t *e);
 | 
			
		||||
void sgsap_state_will_connect(ogs_fsm_t *s, mme_event_t *e);
 | 
			
		||||
void sgsap_state_connected(ogs_fsm_t *s, mme_event_t *e);
 | 
			
		||||
void sgsap_state_exception(ogs_fsm_t *s, mme_event_t *e);
 | 
			
		||||
 | 
			
		||||
#define mme_sm_debug(__pe) \
 | 
			
		||||
    ogs_debug("%s(): %s\n", __func__, mme_event_get_name(__pe))
 | 
			
		||||
 | 
			
		||||
 
 | 
			
		||||
							
								
								
									
										101
									
								
								src/mme/sgsap-path.c
									
									
									
									
									
										Normal file
									
								
							
							
						
						
									
										101
									
								
								src/mme/sgsap-path.c
									
									
									
									
									
										Normal file
									
								
							@@ -0,0 +1,101 @@
 | 
			
		||||
/*
 | 
			
		||||
 * 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-sctp.h"
 | 
			
		||||
 | 
			
		||||
#include "sgsap-path.h"
 | 
			
		||||
 | 
			
		||||
int sgsap_open()
 | 
			
		||||
{
 | 
			
		||||
    return OGS_OK;
 | 
			
		||||
}
 | 
			
		||||
 | 
			
		||||
void sgsap_close()
 | 
			
		||||
{
 | 
			
		||||
}
 | 
			
		||||
 | 
			
		||||
int sgsap_send(ogs_sock_t *sock, ogs_pkbuf_t *pkbuf,
 | 
			
		||||
        ogs_sockaddr_t *addr, uint16_t stream_no)
 | 
			
		||||
{
 | 
			
		||||
    int sent;
 | 
			
		||||
 | 
			
		||||
    ogs_assert(sock);
 | 
			
		||||
    ogs_assert(pkbuf);
 | 
			
		||||
 | 
			
		||||
    sent = ogs_sctp_sendmsg(sock, pkbuf->data, pkbuf->len,
 | 
			
		||||
            addr, SCTP_SGSAP_PPID, stream_no);
 | 
			
		||||
    if (sent < 0 || sent != pkbuf->len) {
 | 
			
		||||
        ogs_error("ogs_sctp_sendmsg error (%d:%s)", errno, strerror(errno));
 | 
			
		||||
        return OGS_ERROR;
 | 
			
		||||
    }
 | 
			
		||||
    ogs_pkbuf_free(pkbuf);
 | 
			
		||||
 | 
			
		||||
    return OGS_OK;
 | 
			
		||||
}
 | 
			
		||||
 | 
			
		||||
int sgsap_recv(ogs_sock_t *sock, ogs_pkbuf_t *pkbuf)
 | 
			
		||||
{
 | 
			
		||||
    int size;
 | 
			
		||||
 | 
			
		||||
    ogs_assert(sock);
 | 
			
		||||
    ogs_assert(pkbuf);
 | 
			
		||||
 | 
			
		||||
    size = ogs_sctp_recvdata(sock, pkbuf->data, MAX_SDU_LEN, NULL, NULL);
 | 
			
		||||
    if (size <= 0) {
 | 
			
		||||
        ogs_error("sgsap_recv() failed");
 | 
			
		||||
        return OGS_ERROR;
 | 
			
		||||
    }
 | 
			
		||||
 | 
			
		||||
    ogs_pkbuf_trim(pkbuf, size);
 | 
			
		||||
    return OGS_OK;;
 | 
			
		||||
}
 | 
			
		||||
 | 
			
		||||
int sgsap_send_to_vlr(mme_vlr_t *vlr, ogs_pkbuf_t *pkbuf, uint16_t stream_no)
 | 
			
		||||
{
 | 
			
		||||
    char buf[OGS_ADDRSTRLEN];
 | 
			
		||||
    ogs_socknode_t *node = NULL;;
 | 
			
		||||
    ogs_sock_t *sock = NULL;;
 | 
			
		||||
    int rv;
 | 
			
		||||
 | 
			
		||||
    ogs_assert(vlr);
 | 
			
		||||
    ogs_assert(pkbuf);
 | 
			
		||||
    node = vlr->node;
 | 
			
		||||
    ogs_assert(node);
 | 
			
		||||
    sock = node->sock;
 | 
			
		||||
    ogs_assert(sock);
 | 
			
		||||
 | 
			
		||||
    ogs_debug("    IP[%s] TAI[MCC:%d%d%d,MNC:%d%d%d,TAC:%d]",
 | 
			
		||||
        OGS_ADDR(node->addr, buf),
 | 
			
		||||
        vlr->tai.plmn_id.mcc1, vlr->tai.plmn_id.mcc2, vlr->tai.plmn_id.mcc3,
 | 
			
		||||
        vlr->tai.plmn_id.mnc1, vlr->tai.plmn_id.mnc2, vlr->tai.plmn_id.mnc3,
 | 
			
		||||
        vlr->tai.tac);
 | 
			
		||||
    ogs_debug("           LAI[MCC:%d%d%d,MNC:%d%d%d,TAC:%d]",
 | 
			
		||||
        vlr->lai.plmn_id.mcc1, vlr->lai.plmn_id.mcc2, vlr->lai.plmn_id.mcc3,
 | 
			
		||||
        vlr->lai.plmn_id.mnc1, vlr->lai.plmn_id.mnc2, vlr->lai.plmn_id.mnc3,
 | 
			
		||||
        vlr->lai.lac);
 | 
			
		||||
 | 
			
		||||
    rv = sgsap_send(sock, pkbuf, NULL, stream_no);
 | 
			
		||||
    if (rv != OGS_OK) {
 | 
			
		||||
        ogs_error("sgsap_send() failed");
 | 
			
		||||
        ogs_pkbuf_free(pkbuf);
 | 
			
		||||
    }
 | 
			
		||||
 | 
			
		||||
    return OGS_OK;;
 | 
			
		||||
}
 | 
			
		||||
 | 
			
		||||
							
								
								
									
										45
									
								
								src/mme/sgsap-path.h
									
									
									
									
									
										Normal file
									
								
							
							
						
						
									
										45
									
								
								src/mme/sgsap-path.h
									
									
									
									
									
										Normal file
									
								
							@@ -0,0 +1,45 @@
 | 
			
		||||
/*
 | 
			
		||||
 * 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/>.
 | 
			
		||||
 */
 | 
			
		||||
 | 
			
		||||
#ifndef SGSAP_PATH_H
 | 
			
		||||
#define SGSAP_PATH_H
 | 
			
		||||
 | 
			
		||||
#include "mme-context.h"
 | 
			
		||||
 | 
			
		||||
#ifdef __cplusplus
 | 
			
		||||
extern "C" {
 | 
			
		||||
#endif
 | 
			
		||||
 | 
			
		||||
int sgsap_open(void);
 | 
			
		||||
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);
 | 
			
		||||
 | 
			
		||||
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);
 | 
			
		||||
 | 
			
		||||
int sgsap_send_to_vlr(mme_vlr_t *vlr, ogs_pkbuf_t *pkb, uint16_t stream_no);
 | 
			
		||||
 | 
			
		||||
#ifdef __cplusplus
 | 
			
		||||
}
 | 
			
		||||
#endif
 | 
			
		||||
 | 
			
		||||
#endif /* SGSAP_PATH_H */
 | 
			
		||||
							
								
								
									
										96
									
								
								src/mme/sgsap-sm.c
									
									
									
									
									
										Normal file
									
								
							
							
						
						
									
										96
									
								
								src/mme/sgsap-sm.c
									
									
									
									
									
										Normal file
									
								
							@@ -0,0 +1,96 @@
 | 
			
		||||
/*
 | 
			
		||||
 * 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 "mme-event.h"
 | 
			
		||||
#include "mme-sm.h"
 | 
			
		||||
 | 
			
		||||
void sgsap_state_initial(ogs_fsm_t *s, mme_event_t *e)
 | 
			
		||||
{
 | 
			
		||||
    ogs_assert(s);
 | 
			
		||||
 | 
			
		||||
    mme_sm_debug(e);
 | 
			
		||||
 | 
			
		||||
    OGS_FSM_TRAN(s, &sgsap_state_will_connect);
 | 
			
		||||
}
 | 
			
		||||
 | 
			
		||||
void sgsap_state_final(ogs_fsm_t *s, mme_event_t *e)
 | 
			
		||||
{
 | 
			
		||||
    ogs_assert(s);
 | 
			
		||||
 | 
			
		||||
    mme_sm_debug(e);
 | 
			
		||||
}
 | 
			
		||||
 | 
			
		||||
void sgsap_state_will_connect(ogs_fsm_t *s, mme_event_t *e)
 | 
			
		||||
{
 | 
			
		||||
    ogs_assert(s);
 | 
			
		||||
    ogs_assert(e);
 | 
			
		||||
 | 
			
		||||
    mme_sm_debug(e);
 | 
			
		||||
 | 
			
		||||
    switch (e->id) {
 | 
			
		||||
    case OGS_FSM_ENTRY_SIG:
 | 
			
		||||
        break;
 | 
			
		||||
    case OGS_FSM_EXIT_SIG:
 | 
			
		||||
        break;
 | 
			
		||||
    case MME_EVT_SGSAP_MESSAGE:
 | 
			
		||||
        break;
 | 
			
		||||
    default:
 | 
			
		||||
        ogs_error("Unknown event %s", mme_event_get_name(e));
 | 
			
		||||
        break;
 | 
			
		||||
    }
 | 
			
		||||
}
 | 
			
		||||
 | 
			
		||||
void sgsap_state_connected(ogs_fsm_t *s, mme_event_t *e)
 | 
			
		||||
{
 | 
			
		||||
    ogs_assert(s);
 | 
			
		||||
    ogs_assert(e);
 | 
			
		||||
 | 
			
		||||
    mme_sm_debug(e);
 | 
			
		||||
 | 
			
		||||
    switch (e->id) {
 | 
			
		||||
    case OGS_FSM_ENTRY_SIG:
 | 
			
		||||
        break;
 | 
			
		||||
    case OGS_FSM_EXIT_SIG:
 | 
			
		||||
        break;
 | 
			
		||||
    case MME_EVT_SGSAP_MESSAGE:
 | 
			
		||||
        break;
 | 
			
		||||
    default:
 | 
			
		||||
        ogs_error("Unknown event %s", mme_event_get_name(e));
 | 
			
		||||
        break;
 | 
			
		||||
    }
 | 
			
		||||
}
 | 
			
		||||
 | 
			
		||||
void sgsap_state_exception(ogs_fsm_t *s, mme_event_t *e)
 | 
			
		||||
{
 | 
			
		||||
    ogs_assert(s);
 | 
			
		||||
    ogs_assert(e);
 | 
			
		||||
 | 
			
		||||
    mme_sm_debug(e);
 | 
			
		||||
 | 
			
		||||
    switch (e->id) {
 | 
			
		||||
    case OGS_FSM_ENTRY_SIG:
 | 
			
		||||
        break;
 | 
			
		||||
    case OGS_FSM_EXIT_SIG:
 | 
			
		||||
        break;
 | 
			
		||||
    default:
 | 
			
		||||
        ogs_error("Unknown event %s", mme_event_get_name(e));
 | 
			
		||||
        break;
 | 
			
		||||
    }
 | 
			
		||||
}
 | 
			
		||||
 | 
			
		||||
							
								
								
									
										243
									
								
								src/mme/sgsap-usrpath.c
									
									
									
									
									
										Normal file
									
								
							
							
						
						
									
										243
									
								
								src/mme/sgsap-usrpath.c
									
									
									
									
									
										Normal file
									
								
							@@ -0,0 +1,243 @@
 | 
			
		||||
/*
 | 
			
		||||
 * 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-sctp.h"
 | 
			
		||||
 | 
			
		||||
#include "app/context.h"
 | 
			
		||||
#include "sgsap-path.h"
 | 
			
		||||
 | 
			
		||||
int sgsap_usrsctp_recv_handler(struct socket *sock,
 | 
			
		||||
        union sctp_sockstore addr, void *data, size_t datalen,
 | 
			
		||||
        struct sctp_rcvinfo rcv, int flags, void *ulp_info);
 | 
			
		||||
 | 
			
		||||
#if 0
 | 
			
		||||
static ogs_sockaddr_t *usrsctp_remote_addr(union sctp_sockstore *store);
 | 
			
		||||
#endif
 | 
			
		||||
 | 
			
		||||
ogs_sock_t *sgsap_client(ogs_socknode_t *node)
 | 
			
		||||
{
 | 
			
		||||
    char buf[OGS_ADDRSTRLEN];
 | 
			
		||||
    ogs_sock_t *sock = NULL;
 | 
			
		||||
 | 
			
		||||
    ogs_assert(node);
 | 
			
		||||
 | 
			
		||||
    ogs_socknode_sctp_option(node, &context_self()->config.sockopt);
 | 
			
		||||
    ogs_socknode_set_poll(node, mme_self()->pollset,
 | 
			
		||||
            OGS_POLLIN, sgsap_usrsctp_recv_handler, node);
 | 
			
		||||
 | 
			
		||||
    sock = ogs_sctp_client(SOCK_STREAM, node);
 | 
			
		||||
    ogs_assert(sock);
 | 
			
		||||
 | 
			
		||||
    ogs_info("sgsap_client() [%s]:%d",
 | 
			
		||||
            OGS_ADDR(node->addr, buf), OGS_PORT(node->addr));
 | 
			
		||||
 | 
			
		||||
    return sock;
 | 
			
		||||
}
 | 
			
		||||
 | 
			
		||||
void sgsap_recv_handler(short when, ogs_socket_t fd, void *data)
 | 
			
		||||
{
 | 
			
		||||
    /* At this point, nextepc does not use SOCK_STREAM in libusrsctp */
 | 
			
		||||
    ogs_assert_if_reached();
 | 
			
		||||
}
 | 
			
		||||
 | 
			
		||||
int sgsap_usrsctp_recv_handler(struct socket *sock,
 | 
			
		||||
    union sctp_sockstore store, void *data, size_t datalen,
 | 
			
		||||
    struct sctp_rcvinfo rcv, int flags, void *ulp_info)
 | 
			
		||||
{
 | 
			
		||||
    if (data) {
 | 
			
		||||
#if 0
 | 
			
		||||
        int rv;
 | 
			
		||||
        mme_event_t *e = NULL;
 | 
			
		||||
 | 
			
		||||
        if (flags & MSG_NOTIFICATION) {
 | 
			
		||||
            union sctp_notification *not = (union sctp_notification *)data;
 | 
			
		||||
            if (not->sn_header.sn_length == (uint32_t)datalen) {
 | 
			
		||||
                switch(not->sn_header.sn_type) {
 | 
			
		||||
                case SCTP_ASSOC_CHANGE :
 | 
			
		||||
                {
 | 
			
		||||
                    ogs_debug("SCTP_ASSOC_CHANGE:"
 | 
			
		||||
                            "[T:%d, F:0x%x, S:%d, I/O:%d/%d]", 
 | 
			
		||||
                            not->sn_assoc_change.sac_type,
 | 
			
		||||
                            not->sn_assoc_change.sac_flags,
 | 
			
		||||
                            not->sn_assoc_change.sac_state,
 | 
			
		||||
                            not->sn_assoc_change.sac_inbound_streams,
 | 
			
		||||
                            not->sn_assoc_change.sac_outbound_streams);
 | 
			
		||||
 | 
			
		||||
                    if (not->sn_assoc_change.sac_state == 
 | 
			
		||||
                            SCTP_SHUTDOWN_COMP ||
 | 
			
		||||
                        not->sn_assoc_change.sac_state == 
 | 
			
		||||
                            SCTP_COMM_LOST) {
 | 
			
		||||
                        ogs_sockaddr_t *addr =
 | 
			
		||||
                            usrsctp_remote_addr(&store);
 | 
			
		||||
                        ogs_assert(addr);
 | 
			
		||||
 | 
			
		||||
                        if (not->sn_assoc_change.sac_state == 
 | 
			
		||||
                            SCTP_SHUTDOWN_COMP)
 | 
			
		||||
                            ogs_debug("SCTP_SHUTDOWN_COMP");
 | 
			
		||||
                        if (not->sn_assoc_change.sac_state == 
 | 
			
		||||
                            SCTP_COMM_LOST)
 | 
			
		||||
                            ogs_debug("SCTP_COMM_LOST");
 | 
			
		||||
 | 
			
		||||
                        e = mme_event_new(MME_EVT_S1AP_LO_CONNREFUSED);
 | 
			
		||||
                        ogs_assert(e);
 | 
			
		||||
                        e->enb_sock = (ogs_sock_t *)sock;
 | 
			
		||||
                        e->enb_addr = addr;
 | 
			
		||||
                        rv = ogs_queue_push(mme_self()->queue, e);
 | 
			
		||||
                        if (rv != OGS_OK) {
 | 
			
		||||
                            ogs_warn("ogs_queue_push() failed:%d", (int)rv);
 | 
			
		||||
                            ogs_free(e->enb_addr);
 | 
			
		||||
                            mme_event_free(e);
 | 
			
		||||
                        } else {
 | 
			
		||||
                            ogs_pollset_notify(mme_self()->pollset);
 | 
			
		||||
                        }
 | 
			
		||||
                    } else if (not->sn_assoc_change.sac_state == SCTP_COMM_UP) {
 | 
			
		||||
                        ogs_sockaddr_t *addr =
 | 
			
		||||
                            usrsctp_remote_addr(&store);
 | 
			
		||||
                        ogs_assert(addr);
 | 
			
		||||
 | 
			
		||||
                        ogs_debug("SCTP_COMM_UP");
 | 
			
		||||
 | 
			
		||||
                        e = mme_event_new(MME_EVT_S1AP_LO_SCTP_COMM_UP);
 | 
			
		||||
                        ogs_assert(e);
 | 
			
		||||
                        e->enb_sock = (ogs_sock_t *)sock;
 | 
			
		||||
                        e->enb_addr = addr;
 | 
			
		||||
                        e->inbound_streams = 
 | 
			
		||||
                            not->sn_assoc_change.sac_inbound_streams;
 | 
			
		||||
                        e->outbound_streams = 
 | 
			
		||||
                            not->sn_assoc_change.sac_outbound_streams;
 | 
			
		||||
                        rv = ogs_queue_push(mme_self()->queue, e);
 | 
			
		||||
                        if (rv != OGS_OK) {
 | 
			
		||||
                            ogs_warn("ogs_queue_push() failed:%d", (int)rv);
 | 
			
		||||
                            ogs_free(e->enb_addr);
 | 
			
		||||
                            mme_event_free(e);
 | 
			
		||||
                        } else {
 | 
			
		||||
                            ogs_pollset_notify(mme_self()->pollset);
 | 
			
		||||
                        }
 | 
			
		||||
                    }
 | 
			
		||||
                    break;
 | 
			
		||||
                }
 | 
			
		||||
                case SCTP_SHUTDOWN_EVENT :
 | 
			
		||||
                {
 | 
			
		||||
                    ogs_sockaddr_t *addr = usrsctp_remote_addr(&store);
 | 
			
		||||
                    ogs_assert(addr);
 | 
			
		||||
 | 
			
		||||
                    ogs_debug("SCTP_SHUTDOWN_EVENT:"
 | 
			
		||||
                            "[T:0x%x, F:0x%x, L:0x%x]", 
 | 
			
		||||
                            not->sn_shutdown_event.sse_type,
 | 
			
		||||
                            not->sn_shutdown_event.sse_flags,
 | 
			
		||||
                            not->sn_shutdown_event.sse_length);
 | 
			
		||||
 | 
			
		||||
                    e = mme_event_new(MME_EVT_S1AP_LO_CONNREFUSED);
 | 
			
		||||
                    ogs_assert(e);
 | 
			
		||||
                    e->enb_sock = (ogs_sock_t *)sock;
 | 
			
		||||
                    e->enb_addr = addr;
 | 
			
		||||
                    rv = ogs_queue_push(mme_self()->queue, e);
 | 
			
		||||
                    if (rv != OGS_OK) {
 | 
			
		||||
                        ogs_warn("ogs_queue_push() failed:%d", (int)rv);
 | 
			
		||||
                        ogs_free(e->enb_addr);
 | 
			
		||||
                        mme_event_free(e);
 | 
			
		||||
                    } else {
 | 
			
		||||
                        ogs_pollset_notify(mme_self()->pollset);
 | 
			
		||||
                    }
 | 
			
		||||
                    break;
 | 
			
		||||
                }
 | 
			
		||||
                case SCTP_PEER_ADDR_CHANGE:
 | 
			
		||||
                    ogs_warn("SCTP_PEER_ADDR_CHANGE:"
 | 
			
		||||
                            "[T:%d, F:0x%x, S:%d]", 
 | 
			
		||||
                            not->sn_paddr_change.spc_type,
 | 
			
		||||
                            not->sn_paddr_change.spc_flags,
 | 
			
		||||
                            not->sn_paddr_change.spc_error);
 | 
			
		||||
                    break;
 | 
			
		||||
                case SCTP_REMOTE_ERROR:
 | 
			
		||||
                    ogs_warn("SCTP_REMOTE_ERROR:[T:%d, F:0x%x, S:%d]", 
 | 
			
		||||
                            not->sn_remote_error.sre_type,
 | 
			
		||||
                            not->sn_remote_error.sre_flags,
 | 
			
		||||
                            not->sn_remote_error.sre_error);
 | 
			
		||||
                    break;
 | 
			
		||||
                case SCTP_SEND_FAILED :
 | 
			
		||||
                    ogs_error("SCTP_SEND_FAILED:[T:%d, F:0x%x, S:%d]", 
 | 
			
		||||
                            not->sn_send_failed_event.ssfe_type,
 | 
			
		||||
                            not->sn_send_failed_event.ssfe_flags,
 | 
			
		||||
                            not->sn_send_failed_event.ssfe_error);
 | 
			
		||||
                    break;
 | 
			
		||||
                default :
 | 
			
		||||
                    ogs_error("Discarding event with "
 | 
			
		||||
                            "unknown flags:0x%x type:0x%x",
 | 
			
		||||
                            flags, not->sn_header.sn_type);
 | 
			
		||||
                    break;
 | 
			
		||||
                }
 | 
			
		||||
            }
 | 
			
		||||
        } else if (flags & MSG_EOR) {
 | 
			
		||||
            ogs_pkbuf_t *pkbuf;
 | 
			
		||||
            ogs_sockaddr_t *addr = NULL;
 | 
			
		||||
 | 
			
		||||
            pkbuf = ogs_pkbuf_alloc(NULL, MAX_SDU_LEN);
 | 
			
		||||
            ogs_pkbuf_put_data(pkbuf, data, datalen);
 | 
			
		||||
 | 
			
		||||
            addr = usrsctp_remote_addr(&store);
 | 
			
		||||
            ogs_assert(addr);
 | 
			
		||||
 | 
			
		||||
            e = mme_event_new(MME_EVT_S1AP_MESSAGE);
 | 
			
		||||
            ogs_assert(e);
 | 
			
		||||
            e->enb_sock = (ogs_sock_t *)sock;
 | 
			
		||||
            e->enb_addr = addr;
 | 
			
		||||
            e->pkbuf = pkbuf;
 | 
			
		||||
            rv = ogs_queue_push(mme_self()->queue, e);
 | 
			
		||||
            if (rv != OGS_OK) {
 | 
			
		||||
                ogs_warn("ogs_queue_push() failed:%d", (int)rv);
 | 
			
		||||
                ogs_free(e->enb_addr);
 | 
			
		||||
                ogs_pkbuf_free(e->pkbuf);
 | 
			
		||||
                mme_event_free(e);
 | 
			
		||||
            } else {
 | 
			
		||||
                ogs_pollset_notify(mme_self()->pollset);
 | 
			
		||||
            }
 | 
			
		||||
        } else {
 | 
			
		||||
            ogs_error("Not engough buffer. Need more recv : 0x%x", flags);
 | 
			
		||||
        }
 | 
			
		||||
#endif
 | 
			
		||||
        free(data);
 | 
			
		||||
    }
 | 
			
		||||
    return (1);
 | 
			
		||||
}
 | 
			
		||||
 | 
			
		||||
#if 0
 | 
			
		||||
static ogs_sockaddr_t *usrsctp_remote_addr(union sctp_sockstore *store)
 | 
			
		||||
{
 | 
			
		||||
    ogs_sockaddr_t *addr = NULL;
 | 
			
		||||
 | 
			
		||||
    ogs_assert(store);
 | 
			
		||||
 | 
			
		||||
    addr = ogs_calloc(1, sizeof(ogs_sockaddr_t));
 | 
			
		||||
    ogs_assert(addr);
 | 
			
		||||
 | 
			
		||||
    addr->ogs_sa_family = store->sin.sin_family;
 | 
			
		||||
    switch(addr->ogs_sa_family) {
 | 
			
		||||
    case AF_INET:
 | 
			
		||||
        memcpy(&addr->sin, &store->sin, sizeof(struct sockaddr_in));
 | 
			
		||||
        break;
 | 
			
		||||
    case AF_INET6:
 | 
			
		||||
        memcpy(&addr->sin6, &store->sin6, sizeof(struct sockaddr_in6));
 | 
			
		||||
        break;
 | 
			
		||||
    default:
 | 
			
		||||
        ogs_assert_if_reached();
 | 
			
		||||
    }
 | 
			
		||||
 | 
			
		||||
    return addr;
 | 
			
		||||
}
 | 
			
		||||
#endif
 | 
			
		||||
		Reference in New Issue
	
	Block a user