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/*
* libss7: An implementation of Signalling System 7
*
* Written by Matthew Fredrickson <creslin@digium.com>
*
* scheduling routines taken from libpri by Mark Spencer <markster@digium.com>
*
* Copyright (C) 2006-2008, Digium, Inc
* All Rights Reserved.
*/
/*
* See http://www.asterisk.org for more information about
* the Asterisk project. Please do not directly contact
* any of the maintainers of this project for assistance;
* the project provides a web site, mailing lists and IRC
* channels for your use.
*
* This program is free software, distributed under the terms of
* the GNU General Public License Version 2 as published by the
* Free Software Foundation. See the LICENSE file included with
* this program for more details.
*
* In addition, when this program is distributed with Asterisk in
* any form that would qualify as a 'combined work' or as a
* 'derivative work' (but not mere aggregation), you can redistribute
* and/or modify the combination under the terms of the license
* provided with that copy of Asterisk, instead of the license
* terms granted here.
*/
#ifndef _MTP3_H
#define _MTP3_H
#include "ss7_internal.h"
/* Service Indicator bits for Service Information Octet */
/* Bits 4-1 */
#define SIG_NET_MNG 0x00
#define SIG_STD_TEST 0x01
#define SIG_SPEC_TEST 0x02
#define SIG_SCCP 0x03
#define SIG_ISUP 0x05
/* Bits 6-5 -- ANSI networks only */
#define PRIORITY_0 0x00
#define PRIORITY_1 0x01
#define PRIORITY_2 0x02
#define PRIORITY_3 0x03
#define SIO_SIZE 1
#define MTP2_LINKSTATE_DOWN 0
#define MTP2_LINKSTATE_INALARM 1
#define MTP2_LINKSTATE_ALIGNING 2
#define MTP2_LINKSTATE_UP 3
#define MTP3_DOWN 0
#define MTP3_UP 1
#define GOT (1 << 0)
#define SENT (1 << 1)
/* Prohibited, restricted states */
#define TFP 1
#define TFA 2
#define TFR_NON_ACTIVE 3
#define TFR_ACTIVE 4
/* Net mngs h0 h1 */
#define NET_MNG_COO (0x01 | 0x10)
#define NET_MNG_COA (0x01 | 0x20)
#define NET_MNG_CBD (0x01 | 0x50)
#define NET_MNG_CBA (0x01 | 0x60)
#define NET_MNG_ECO (0x02 | 0x10)
#define NET_MNG_ECA (0x02 | 0x20)
#define NET_MNG_RCT (0x03 | 0x10)
#define NET_MNG_TFC (0x03 | 0x20)
#define NET_MNG_TFP (0x04 | 0x10)
#define NET_MNG_TFR (0x04 | 0x30)
#define NET_MNG_TFA (0x04 | 0x50)
#define NET_MNG_RST (0x05 | 0x10)
#define NET_MNG_RSR (0x05 | 0x20)
#define NET_MNG_LIN (0x06 | 0x10)
#define NET_MNG_LUN (0x06 | 0x20)
#define NET_MNG_LIA (0x06 | 0x30)
#define NET_MNG_LUA (0x06 | 0x40)
#define NET_MNG_LID (0x06 | 0x50)
#define NET_MNG_LFU (0x06 | 0x60)
#define NET_MNG_LLT (0x06 | 0x70)
#define NET_MNG_LRT (0x06 | 0x80)
#define NET_MNG_TRA (0x07 | 0x10)
#define NET_MNG_DLC (0x08 | 0x10)
#define NET_MNG_CSS (0x08 | 0x20)
#define NET_MNG_CNS (0x08 | 0x30)
#define NET_MNG_CNP (0x08 | 0x40)
#define NET_MNG_UPU (0x0a | 0x10)
/* INHIBIT states */
#define INHIBITED_REMOTELY (1 << 0)
#define INHIBITED_LOCALLY (1 << 1)
/* Got, Sent netmsgs */
#define SENT_LUN (1 << 0)
#define SENT_LIN (1 << 1)
#define SENT_COO (1 << 2)
#define SENT_ECO (1 << 3)
#define SENT_CBD (1 << 4)
#define SENT_LFU (1 << 5)
/* Chaneover states */
#define NO_CHANGEOVER 0
#define CHANGEOVER_INITIATED 1
#define CHANGEOVER_IN_PROGRESS 2
#define CHANGEOVER_COMPLETED 3
#define CHANGEBACK_INITIATED 4
#define CHANGEBACK 5
/* MTP3 timers */
#define MTP3_TIMER_T1 1
#define MTP3_TIMER_T2 2
#define MTP3_TIMER_T3 3
#define MTP3_TIMER_T4 4
#define MTP3_TIMER_T5 5
#define MTP3_TIMER_T6 6
#define MTP3_TIMER_T7 7
#define MTP3_TIMER_T8 8
#define MTP3_TIMER_T10 9
#define MTP3_TIMER_T12 10
#define MTP3_TIMER_T13 11
#define MTP3_TIMER_T14 12
#define MTP3_TIMER_T19 13
#define MTP3_TIMER_T21 14
#define MTP3_TIMER_T22 15
#define MTP3_TIMER_T23 16
#define MTP3_TIMER_Q707_T1 17
#define MTP3_TIMER_Q707_T2 18
#define AUTORL(rl, link) \
struct routing_label rl; \
rl.sls = link->net_mng_sls; \
rl.dpc = link->dpc; \
rl.opc = link->master->pc
struct net_mng_message {
int h0;
int h1;
char *name;
};
struct mtp3_route {
int state;
unsigned int dpc;
int t6;
int t10;
struct ss7_msg *q;
struct adjacent_sp *owner;
struct mtp3_route *next;
};
struct adjacent_sp {
int state;
unsigned int adjpc;
struct mtp2 *links[SS7_MAX_LINKS];
unsigned int numlinks;
int timer_t19;
int timer_t21;
unsigned int tra;
struct ss7 *master;
struct mtp3_route *routes;
};
int net_mng_send(struct mtp2 *link, unsigned char h0h1, struct routing_label rl, unsigned int param);
/* Process any MTP2 events that occur */
ss7_event* mtp3_process_event(struct ss7 *ss7, ss7_event *e);
/* The main receive function for MTP3 */
int mtp3_receive(struct ss7 *ss7, struct mtp2 *link, void *msg, int len);
int mtp3_dump(struct ss7 *ss7, struct mtp2 *link, void *msg, int len);
/* Transmit */
int mtp3_transmit(struct ss7 *ss7, unsigned char userpart, struct routing_label rl, int priority, struct ss7_msg *m, struct mtp2 *link);
void mtp3_alarm(struct ss7 *ss7, int fd);
void mtp3_noalarm(struct ss7 *ss7, int fd);
void mtp3_start(struct ss7 *ss7);
unsigned char ansi_sls_next(struct ss7 *ss7);
int set_routinglabel(unsigned char *sif, struct routing_label *rl);
unsigned char sls_next(struct ss7 *ss7);
char * mtp3_timer2str(int mtp3_timer);
void mtp3_add_adj_sp(struct mtp2 *link);
void mtp3_free_co(struct mtp2 *link);
void mtp3_destroy_all_routes(struct adjacent_sp *adj_sp);
#endif /* _MTP3_H */
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