104 lines
2.9 KiB
C
104 lines
2.9 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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#include "config.h"
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#include <inttypes.h>
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#include <osmocom/core/talloc.h>
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#include <osmocom/core/utils.h>
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#include <osmocom/bsc_nat/bsc.h>
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#include <osmocom/bsc_nat/bsc_nat.h>
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#include <osmocom/bsc_nat/bsc_nat_fsm.h>
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#include <osmocom/bsc_nat/logging.h>
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#include <osmocom/bsc_nat/msc.h>
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#include <osmocom/bsc_nat/subscr_conn.h>
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struct osmo_tdef g_mgw_tdefs[] = {
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{ .T = -2427, .default_val = 5, .desc = "timeout for MGCP response from MGW" },
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{}
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};
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struct osmo_tdef_group g_bsc_nat_tdef_group[] = {
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{ .name = "mgw", .tdefs = g_mgw_tdefs, .desc = "MGW (Media Gateway) interface" },
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{}
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};
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struct bsc_nat *bsc_nat_alloc(void *tall_ctx)
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{
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struct bsc_nat *bsc_nat;
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bsc_nat = talloc_zero(tall_ctx, struct bsc_nat);
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OSMO_ASSERT(bsc_nat);
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bsc_nat->mgw.pool = mgcp_client_pool_alloc(bsc_nat);
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bsc_nat->mgw.tdefs = g_mgw_tdefs;
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osmo_tdefs_reset(bsc_nat->mgw.tdefs);
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bsc_nat->cn.sccp_inst = talloc_zero(bsc_nat, struct bsc_nat_sccp_inst);
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OSMO_ASSERT(bsc_nat->cn.sccp_inst);
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talloc_set_name_const(bsc_nat->cn.sccp_inst, "struct bsc_nat_sccp_inst (CN)");
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bsc_nat->ran.sccp_inst = talloc_zero(bsc_nat, struct bsc_nat_sccp_inst);
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OSMO_ASSERT(bsc_nat->ran.sccp_inst);
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talloc_set_name_const(bsc_nat->ran.sccp_inst, "struct bsc_nat_sccp_inst (RAN)");
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INIT_LLIST_HEAD(&bsc_nat->subscr_conns);
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INIT_LLIST_HEAD(&bsc_nat->cn.mscs);
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INIT_LLIST_HEAD(&bsc_nat->ran.bscs);
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bsc_nat_fsm_alloc(bsc_nat);
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return bsc_nat;
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}
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void bsc_nat_free(struct bsc_nat *bsc_nat)
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{
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struct subscr_conn *subscr_conn, *s;
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struct msc *msc, *m;
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struct bsc *bsc, *b;
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if (bsc_nat->fi) {
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osmo_fsm_inst_free(bsc_nat->fi);
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bsc_nat->fi = NULL;
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}
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llist_for_each_entry_safe(subscr_conn, s, &bsc_nat->subscr_conns, list) {
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subscr_conn_free(subscr_conn);
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}
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llist_for_each_entry_safe(msc, m, &bsc_nat->cn.mscs, list) {
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msc_free(msc);
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}
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llist_for_each_entry_safe(bsc, b, &bsc_nat->ran.bscs, list) {
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bsc_free(bsc);
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}
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talloc_free(bsc_nat);
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}
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const char *bsc_nat_print_addr(enum bsc_nat_net net, struct osmo_sccp_addr *addr)
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{
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static char buf[25];
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snprintf(buf, sizeof(buf), "PC=%s in %s", osmo_ss7_pointcode_print(NULL, addr->pc),
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net == BSC_NAT_NET_CN ? "CN" : "RAN");
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return buf;
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}
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