1 /* Main method of the layer2/3 stack */
3 /* (C) 2010 by Holger Hans Peter Freyther
4 * (C) 2010 by Harald Welte <laforge@gnumonks.org>
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; either version 2 of the License, or
11 * (at your option) any later version.
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
18 * You should have received a copy of the GNU General Public License along
19 * with this program; if not, write to the Free Software Foundation, Inc.,
20 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
24 #include <osmocom/bb/common/osmocom_data.h>
25 #include <osmocom/bb/common/l1ctl.h>
26 #include <osmocom/bb/common/l1l2_interface.h>
27 #include <osmocom/bb/misc/layer3.h>
28 #include <osmocom/bb/common/lapdm.h>
29 #include <osmocom/bb/common/logging.h>
30 #include <osmocom/bb/common/l23_app.h>
32 #include <osmocore/msgb.h>
33 #include <osmocore/talloc.h>
34 #include <osmocore/select.h>
35 #include <osmocore/linuxlist.h>
36 #include <osmocore/gsmtap_util.h>
38 #include <arpa/inet.h>
48 struct log_target *stderr_target;
51 static char *socket_path = "/tmp/osmocom_l2";
52 struct llist_head ms_list;
53 static struct osmocom_ms *ms = NULL;
54 static uint32_t gsmtap_ip = 0;
55 unsigned short vty_port = 4247;
56 int (*l23_app_work) (struct osmocom_ms *ms) = NULL;
57 int (*l23_app_exit) (struct osmocom_ms *ms) = NULL;
60 const char *openbsc_copyright =
61 "Copyright (C) 2008-2010 ...\n"
62 "Contributions by ...\n\n"
63 "License GPLv2+: GNU GPL version 2 or later "
64 "<http://gnu.org/licenses/gpl.html>\n"
65 "This is free software: you are free to change and redistribute it.\n"
66 "There is NO WARRANTY, to the extent permitted by law.\n";
68 static void print_usage(const char *app)
70 printf("Usage: %s\n", app);
73 static void print_help()
75 printf(" Some help...\n");
76 printf(" -h --help this text\n");
77 printf(" -s --socket /tmp/osmocom_l2. Path to the unix "
79 printf(" -a --arfcn NR The ARFCN to be used for layer2.\n");
80 printf(" -i --gsmtap-ip The destination IP used for GSMTAP.\n");
81 printf(" -v --vty-port The VTY port number to telnet to. "
82 "(default %u)\n", vty_port);
83 printf(" -d --debug Change debug flags.\n");
86 static void handle_options(int argc, char **argv)
88 struct sockaddr_in gsmtap;
90 int option_index = 0, c;
91 static struct option long_options[] = {
93 {"socket", 1, 0, 's'},
95 {"gsmtap-ip", 1, 0, 'i'},
96 {"vty-port", 1, 0, 'v'},
101 c = getopt_long(argc, argv, "hs:a:i:v:d:",
102 long_options, &option_index);
108 print_usage(argv[0]);
113 socket_path = talloc_strdup(l23_ctx, optarg);
116 ms->test_arfcn = atoi(optarg);
119 if (!inet_aton(optarg, &gsmtap.sin_addr)) {
123 gsmtap_ip = ntohl(gsmtap.sin_addr.s_addr);
126 vty_port = atoi(optarg);
129 log_parse_category_mask(stderr_target, optarg);
137 void sighandler(int sigset)
141 if (sigset == SIGHUP || sigset == SIGPIPE)
144 fprintf(stderr, "Signal %d recevied.\n", sigset);
146 rc = l23_app_exit(ms);
152 int main(int argc, char **argv)
156 printf("%s\n", openbsc_copyright);
158 INIT_LLIST_HEAD(&ms_list);
160 stderr_target = log_target_create_stderr();
161 log_add_target(stderr_target);
162 log_set_all_filter(stderr_target, 1);
164 l23_ctx = talloc_named_const(NULL, 1, "layer2 context");
166 ms = talloc_zero(l23_ctx, struct osmocom_ms);
168 fprintf(stderr, "Failed to allocate MS\n");
171 llist_add_tail(&ms->entity, &ms_list);
173 sprintf(ms->name, "1");
175 ms->test_arfcn = 871;
177 handle_options(argc, argv);
179 rc = layer2_open(ms, socket_path);
181 fprintf(stderr, "Failed during layer2_open()\n");
185 lapdm_init(&ms->l2_entity.lapdm_dcch, ms);
186 lapdm_init(&ms->l2_entity.lapdm_acch, ms);
188 rc = l23_app_init(ms);
193 rc = gsmtap_init(gsmtap_ip);
195 fprintf(stderr, "Failed during gsmtap_init()\n");
200 signal(SIGINT, sighandler);
201 signal(SIGHUP, sighandler);
202 signal(SIGTERM, sighandler);
203 signal(SIGPIPE, sighandler);