1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
|
/*
* (C) 2010 by Holger Hans Peter Freyther <zecke@selfish.org>
* (C) 2010 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 <osmocore/msgb.h>
#include <osmocore/timer.h>
#include <osmocore/utils.h>
/* MTP Level3 timers */
/* Timers for SS7 */
#define MTP_T1 12, 0
#define MTP_T2 30, 0
#define START_DELAY 8, 0
/**
* The state of the mtp_link in terms of layer3 and upwards
*/
struct mtp_link {
/* routing info.. */
int dpc, opc, sccp_opc;
int ni;
int spare;
/* internal state */
/* the MTP1 link is up */
int available;
int running;
int sccp_up;
/* misc data */
uint8_t test_ptrn[14];
int sltm_pending;
int sltm_once;
int was_up;
/* the associated link */
int link;
int slta_misses;
struct timer_list t1_timer;
struct timer_list t2_timer;
struct timer_list delay_timer;
};
struct mtp_link *mtp_link_alloc(void);
void mtp_link_stop(struct mtp_link *link);
void mtp_link_reset(struct mtp_link *link);
int mtp_link_data(struct mtp_link *link, struct msgb *msg);
int mtp_link_submit_sccp_data(struct mtp_link *link, int sls, const uint8_t *data, unsigned int length);
int mtp_link_submit_isup_data(struct mtp_link *link, int sls, const uint8_t *data, unsigned int length);
/* one time init function */
void mtp_link_init(void);
/* to be implemented for MSU sending */
void mtp_link_submit(struct mtp_link *link, struct msgb *msg);
void mtp_link_forward_sccp(struct mtp_link *link, struct msgb *msg, int sls);
void mtp_link_restart(struct mtp_link *link);
void mtp_link_sccp_down(struct mtp_link *link);
#endif
|
