92 lines
2.4 KiB
C
92 lines
2.4 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 <errno.h>
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#include <osmocom/bsc_nat/msc.h>
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#include <osmocom/bsc_nat/bsc_nat.h>
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#include <osmocom/bsc_nat/logging.h>
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#include <osmocom/bsc_nat/subscr_conn.h>
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extern struct osmo_fsm msc_fsm;
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struct msc *msc_alloc(struct osmo_sccp_addr *addr)
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{
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struct msc *msc = talloc_zero(g_bsc_nat, struct msc);
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OSMO_ASSERT(msc);
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talloc_set_name(msc, "MSC(PC=%s)", osmo_ss7_pointcode_print(NULL, addr->pc));
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LOGP(DMAIN, LOGL_DEBUG, "Add %s\n", talloc_get_name(msc));
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msc->addr = *addr;
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INIT_LLIST_HEAD(&msc->list);
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llist_add(&msc->list, &g_bsc_nat->cn.mscs);
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msc->fi = osmo_fsm_inst_alloc(&msc_fsm, msc, msc, LOGL_INFO, NULL);
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OSMO_ASSERT(msc->fi);
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msc_tx_reset(msc);
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return msc;
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}
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int msc_alloc_from_addr_book(void)
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{
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struct osmo_sccp_addr addr;
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/* For now only one MSC is supported */
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if (osmo_sccp_addr_by_name_local(&addr, "msc", g_bsc_nat->cn.sccp_inst->ss7_inst) < 0) {
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LOGP(DMAIN, LOGL_ERROR, "Configuration error, MSC not found in address book\n");
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return -ENOENT;
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}
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msc_alloc(&addr);
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return 0;
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}
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struct msc *msc_get(void)
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{
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/* For now only one MSC is supported */
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OSMO_ASSERT(!llist_empty(&g_bsc_nat->cn.mscs));
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return llist_first_entry(&g_bsc_nat->cn.mscs, struct msc, list);
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}
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void msc_free_subscr_conn_all(struct msc *msc)
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{
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struct subscr_conn *subscr_conn;
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llist_for_each_entry(subscr_conn, &g_bsc_nat->subscr_conns, list) {
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if (subscr_conn->cn.msc == msc)
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subscr_conn_free(subscr_conn);
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}
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}
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void msc_free(struct msc *msc)
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{
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LOGP(DMAIN, LOGL_DEBUG, "Del %s\n", talloc_get_name(msc));
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msc_free_subscr_conn_all(msc);
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llist_del(&msc->list);
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osmo_fsm_inst_free(msc->fi);
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talloc_free(msc);
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}
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