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/*
* (C) 2010-2011 by Holger Hans Peter Freyther <zecke@selfish.org>
* (C) 2010-2011 by On-Waves
* All Rights Reserved
*
* 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 Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
*/
#ifndef mtp_data_h
#define mtp_data_h
#include "linkset.h"
#include <osmocom/core/msgb.h>
#include <osmocom/core/timer.h>
#include <osmocom/core/utils.h>
struct bsc_data;
struct mtp_link;
struct mtp_level_3_mng *mng;
struct rate_ctr_group;
struct ss7_application;
/* MTP Level3 timers */
/* Timers for SS7 */
#define MTP_T1 12, 0
#define MTP_T2 30, 0
#define START_DELAY 8, 0
enum ss7_link_type {
SS7_LTYPE_NONE,
SS7_LTYPE_UDP,
SS7_LTYPE_M2UA,
};
/**
* One physical link to somewhere. This is the base
* with the interface used by the mtp_link_set. There
* will be specific implementations for M2UA, UDP and
* other transport means.
*/
struct mtp_link {
struct llist_head entry;
int nr;
char *name;
int pcap_fd;
struct mtp_link_set *set;
int available;
struct osmo_timer_list link_activate;
/* link test routine */
uint8_t test_ptrn[14];
int blocked;
int first_sls;
int sltm_pending;
int was_up;
int slta_misses;
struct osmo_timer_list t1_timer;
struct osmo_timer_list t2_timer;
/* statistics */
struct rate_ctr_group *ctrg;
/* callback's to implement */
int (*start)(struct mtp_link *);
int (*write)(struct mtp_link *, struct msgb *msg);
int (*shutdown)(struct mtp_link *);
int (*reset)(struct mtp_link *data);
int (*clear_queue)(struct mtp_link *data);
/* private data */
enum ss7_link_type type;
void *data;
};
void mtp_link_block(struct mtp_link *link);
void mtp_link_unblock(struct mtp_link *link);
/* to be implemented for MSU sending */
void mtp_link_submit(struct mtp_link *link, struct msgb *msg);
void mtp_link_restart(struct mtp_link *link);
/* link related routines */
void mtp_link_down(struct mtp_link *data);
void mtp_link_up(struct mtp_link *data);
void mtp_link_start_link_test(struct mtp_link *link);
void mtp_link_stop_link_test(struct mtp_link *link);
int mtp_link_slta(struct mtp_link *link, uint16_t l3_len, struct mtp_level_3_mng *mng);
void mtp_link_failure(struct mtp_link *fail);
/* link management */
struct mtp_link *mtp_link_alloc(struct mtp_link_set *set);
struct mtp_link *mtp_link_num(struct mtp_link_set *set, int num);
#endif
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