76 lines
2.2 KiB
C
76 lines
2.2 KiB
C
/* (C) 2021 by sysmocom - s.f.m.c. GmbH <info@sysmocom.de>
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* Author: Oliver Smith <osmith@sysmocom.de>
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* All Rights Reserved
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU Affero General Public License as published by
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* the Free Software Foundation; either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Affero General Public License for more details.
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*
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* You should have received a copy of the GNU Affero General Public License
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* along with this program. If not, see <http://www.gnu.org/lienses/>.
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*
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*/
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#pragma once
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#include <osmocom/core/fsm.h>
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#include <osmocom/core/tdef.h>
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#include <osmocom/mgcp_client/mgcp_client_pool.h>
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#include <osmocom/sigtran/sccp_sap.h>
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#define BSC_NAT_TDEF_ASS_COMPL (-1)
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#define BSC_NAT_TDEF_MGCP (-2427)
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enum bsc_nat_net {
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BSC_NAT_NET_CN = 0,
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BSC_NAT_NET_RAN
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};
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struct bsc_nat_sccp_inst {
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uint32_t ss7_id;
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struct osmo_ss7_instance *ss7_inst;
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struct osmo_sccp_addr addr; /* OsmoBSCNAT's local address */
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struct osmo_sccp_user *scu;
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};
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struct bsc_nat {
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struct osmo_fsm_inst *fi;
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struct osmo_tdef *tdefs;
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struct llist_head subscr_conns; /* list of struct subscr_conn */
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struct {
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struct mgcp_client_pool *pool;
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uint32_t call_id_next;
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} mgw;
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struct {
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struct bsc_nat_sccp_inst *sccp_inst;
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uint32_t subscr_conn_id_next;
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struct llist_head mscs; /* list of struct msc */
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} cn;
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struct {
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struct bsc_nat_sccp_inst *sccp_inst;
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uint32_t subscr_conn_id_next;
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struct llist_head bscs; /* list of struct bsc */
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} ran;
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};
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struct bsc_nat *bsc_nat_alloc(void *tall_ctx);
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void bsc_nat_free(struct bsc_nat *bsc_nat);
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#define bsc_nat_print_addr_cn(addr) bsc_nat_print_addr(BSC_NAT_NET_CN, addr)
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#define bsc_nat_print_addr_ran(addr) bsc_nat_print_addr(BSC_NAT_NET_RAN, addr)
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const char *bsc_nat_print_addr(enum bsc_nat_net net, struct osmo_sccp_addr *addr);
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extern void *tall_bsc_nat_ctx;
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extern struct bsc_nat *g_bsc_nat;
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extern struct osmo_tdef_group g_bsc_nat_tdef_group[];
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