88 lines
2.3 KiB
C
88 lines
2.3 KiB
C
/*
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* (C) 2010 by Holger Hans Peter Freyther <zecke@selfish.org>
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* (C) 2010 by On-Waves
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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/licenses/>.
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*
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*/
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#ifndef mtp_data_h
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#define mtp_data_h
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#include <osmocore/msgb.h>
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#include <osmocore/timer.h>
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#include <osmocore/utils.h>
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/* MTP Level3 timers */
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/* Timers for SS7 */
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#define MTP_T1 12, 0
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#define MTP_T2 30, 0
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#define START_DELAY 8, 0
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/**
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* The state of the mtp_link in terms of layer3 and upwards
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*/
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struct mtp_link {
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/* routing info.. */
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int dpc, opc, sccp_opc;
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int ni;
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int spare;
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/* internal state */
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/* the MTP1 link is up */
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int available;
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int running;
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int sccp_up;
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/* misc data */
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uint8_t test_ptrn[14];
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int sltm_pending;
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struct llist_head pending_msgs;
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int sltm_once;
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int was_up;
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/* the associated link */
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int link;
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int slta_misses;
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struct timer_list t1_timer;
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struct timer_list t2_timer;
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struct timer_list delay_timer;
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};
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struct mtp_link *mtp_link_alloc(void);
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void mtp_link_stop(struct mtp_link *link);
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void mtp_link_reset(struct mtp_link *link);
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int mtp_link_data(struct mtp_link *link, struct msgb *msg);
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int mtp_link_submit_sccp_data(struct mtp_link *link, int sls, const uint8_t *data, unsigned int length);
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int mtp_link_submit_isup_data(struct mtp_link *link, int sls, const uint8_t *data, unsigned int length);
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/* one time init function */
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void mtp_link_init(void);
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/* to be implemented for MSU sending */
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void mtp_link_submit(struct mtp_link *link, struct msgb *msg);
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void mtp_link_forward_sccp(struct mtp_link *link, struct msgb *msg, int sls);
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void mtp_link_restart(struct mtp_link *link);
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void mtp_link_slta_recv(struct mtp_link *link);
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void mtp_link_sccp_down(struct mtp_link *link);
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#endif
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