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
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
|
/* Everything related to the global BSC */
/*
* (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/>.
*
*/
#include <bsc_data.h>
#include <cellmgr_debug.h>
#include <msc_connection.h>
#include <mtp_pcap.h>
#include <osmocom/core/talloc.h>
#include <osmocom/vty/vty.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <assert.h>
#include <unistd.h>
#include <signal.h>
#include <pthread.h>
#ifndef _GNU_SOURCE
#define _GNU_SOURCE
#endif
#include <getopt.h>
#undef PACKAGE_NAME
#undef PACKAGE_VERSION
#undef PACKAGE_BUGREPORT
#undef PACKAGE_TARNAME
#undef PACKAGE_STRING
#include <cellmgr_config.h>
extern struct bsc_data *bsc;
extern char *config;
struct bsc_data *bsc_data_create()
{
struct bsc_data *bsc;
bsc = talloc_zero(NULL, struct bsc_data);
if (!bsc) {
LOGP(DINP, LOGL_ERROR, "Failed to create the BSC.\n");
return NULL;
}
INIT_LLIST_HEAD(&bsc->linksets);
INIT_LLIST_HEAD(&bsc->mscs);
INIT_LLIST_HEAD(&bsc->apps);
bsc->udp_port = 3456;
bsc->udp_ip = NULL;
bsc->udp_nr_links = 1;
bsc->udp_src_port = 1313;
bsc->pcap_fd = -1;
bsc->udp_reset_timeout = 180;
/* m2ua code */
bsc->m2ua_src_port = 2904;
return bsc;
}
static void sigint()
{
static pthread_mutex_t exit_mutex = PTHREAD_MUTEX_INITIALIZER;
static int handled = 0;
struct mtp_link_set *set;
/* failed to lock */
if (pthread_mutex_trylock(&exit_mutex) != 0)
return;
if (handled)
goto out;
printf("Terminating.\n");
handled = 1;
if (bsc) {
llist_for_each_entry(set, &bsc->linksets, entry)
link_shutdown_all(set);
}
exit(0);
out:
pthread_mutex_unlock(&exit_mutex);
}
static void sigusr1()
{
talloc_report(tall_vty_ctx, stderr);
talloc_report_full(bsc, stderr);
}
static void sigusr2()
{
struct msc_connection *msc;
printf("Closing the MSC connection on demand.\n");
llist_for_each_entry(msc, &bsc->mscs, entry) {
if (!msc->msc_link_down)
msc_close_connection(msc);
}
}
static void print_usage(const char *arg)
{
printf("Usage: %s\n", arg);
}
static void print_help()
{
printf(" Some useful help...\n");
printf(" -h --help this text\n");
printf(" -c --config=CFG The config file to use.\n");
printf(" -p --pcap=FILE. Write MSUs to the PCAP file.\n");
printf(" -c --once. Send the SLTM msg only once.\n");
printf(" -v --version. Print the version number\n");
}
void handle_options(int argc, char **argv)
{
while (1) {
int option_index = 0, c;
static struct option long_options[] = {
{"help", 0, 0, 'h'},
{"config", 1, 0, 'c'},
{"pcap", 1, 0, 'p'},
{"version", 0, 0, 0},
{0, 0, 0, 0},
};
c = getopt_long(argc, argv, "hc:p:v",
long_options, &option_index);
if (c == -1)
break;
switch (c) {
case 'h':
print_usage(argv[0]);
print_help();
exit(0);
case 'p':
if (bsc->pcap_fd >= 0)
close(bsc->pcap_fd);
bsc->pcap_fd = open(optarg, O_WRONLY | O_TRUNC | O_CREAT, S_IRUSR | S_IWUSR | S_IRGRP| S_IROTH);
if (bsc->pcap_fd < 0) {
fprintf(stderr, "Failed to open PCAP file.\n");
exit(0);
}
mtp_pcap_write_header(bsc->pcap_fd);
break;
case 'c':
config = optarg;
break;
case 'v':
printf("This is %s version %s.\n", PACKAGE, VERSION);
exit(0);
break;
default:
fprintf(stderr, "Unknown option.\n");
break;
}
}
signal(SIGPIPE, SIG_IGN);
signal(SIGINT, sigint);
signal(SIGUSR1, sigusr1);
signal(SIGUSR2, sigusr2);
}
|
