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
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
|
/* (C) 2017 by sysmocom s.f.m.c. GmbH
* All Rights Reserved
*
* Author: Philipp Maier
*
* 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/>.
*
*/
#include <osmocom/core/signal.h>
#include <osmocom/bsc/signal.h>
#include <osmocom/bsc/debug.h>
#include <osmocom/bsc/bsc_msc_data.h>
#include <osmocom/bsc/osmo_bsc_sigtran.h>
#include <osmocom/bsc/bssmap_reset.h>
#include <osmocom/bsc/bsc_stats.h>
static void a_reset_tx_reset(void *data)
{
struct bsc_msc_data *msc = data;
osmo_bsc_sigtran_tx_reset(msc);
}
static void a_reset_tx_reset_ack(void *data)
{
struct bsc_msc_data *msc = data;
osmo_bsc_sigtran_tx_reset_ack(msc);
}
static void a_reset_link_up(void *data)
{
struct bsc_msc_data *msc = data;
LOGP(DMSC, LOGL_NOTICE, "(msc%d) BSSMAP assocation is up\n", msc->nr);
osmo_stat_item_inc(osmo_stat_item_group_get_item(msc->msc_statg, MSC_STAT_MSC_LINKS_ACTIVE), 1);
osmo_stat_item_inc(osmo_stat_item_group_get_item(msc->network->bsc_statg, BSC_STAT_NUM_MSC_CONNECTED), 1);
osmo_signal_dispatch(SS_MSC, S_MSC_CONNECTED, msc);
}
static void a_reset_link_lost(void *data)
{
struct bsc_msc_data *msc = data;
LOGP(DMSC, LOGL_NOTICE, "(msc%d) BSSMAP assocation is down\n", msc->nr);
osmo_stat_item_dec(osmo_stat_item_group_get_item(msc->msc_statg, MSC_STAT_MSC_LINKS_ACTIVE), 1);
osmo_stat_item_dec(osmo_stat_item_group_get_item(msc->network->bsc_statg, BSC_STAT_NUM_MSC_CONNECTED), 1);
osmo_signal_dispatch(SS_MSC, S_MSC_LOST, msc);
osmo_bsc_sigtran_reset(msc);
}
/* Create and start state machine which handles the reset/reset-ack procedure */
void a_reset_alloc(struct bsc_msc_data *msc, const char *name)
{
struct bssmap_reset_cfg cfg = {
.conn_cfm_failure_threshold = 3,
.ops = {
.tx_reset = a_reset_tx_reset,
.tx_reset_ack = a_reset_tx_reset_ack,
.link_up = a_reset_link_up,
.link_lost = a_reset_link_lost,
},
.data = msc,
};
/* There must not be any double allocation! */
if (msc->a.bssmap_reset) {
LOGP(DMSC, LOGL_ERROR, "(msc%d) will not allocate a second reset FSM for this MSC\n", msc->nr);
return;
}
msc->a.bssmap_reset = bssmap_reset_alloc(msc, name, &cfg);
osmo_stat_item_inc(osmo_stat_item_group_get_item(msc->network->bsc_statg, BSC_STAT_NUM_MSC_TOTAL), 1);
}
/* Confirm that we successfully received a reset acknowledge message */
void a_reset_ack_confirm(struct bsc_msc_data *msc)
{
if (!msc)
return;
if (!msc->a.bssmap_reset)
return;
osmo_fsm_inst_dispatch(msc->a.bssmap_reset->fi, BSSMAP_RESET_EV_RX_RESET_ACK, NULL);
}
/* Report a failed connection */
void a_reset_conn_fail(struct bsc_msc_data *msc)
{
if (!msc)
return;
if (!msc->a.bssmap_reset)
return;
osmo_fsm_inst_dispatch(msc->a.bssmap_reset->fi, BSSMAP_RESET_EV_CONN_CFM_FAILURE, NULL);
}
/* Report a successful connection */
void a_reset_conn_success(struct bsc_msc_data *msc)
{
if (!msc)
return;
if (!msc->a.bssmap_reset)
return;
osmo_fsm_inst_dispatch(msc->a.bssmap_reset->fi, BSSMAP_RESET_EV_CONN_CFM_SUCCESS, NULL);
}
/* Check if we have a connection to a specified msc */
bool a_reset_conn_ready(struct bsc_msc_data *msc)
{
if (!msc)
return false;
if (!msc->a.bssmap_reset)
return false;
return bssmap_reset_is_conn_ready(msc->a.bssmap_reset);
}
|
