Holger Hans Peter Freyther | a93b83b | 2011-01-17 15:21:06 +0100 | [diff] [blame] | 1 | /* Relay UDT/all SCCP messages */ |
| 2 | /* |
| 3 | * (C) 2010-2011 by Holger Hans Peter Freyther <zecke@selfish.org> |
| 4 | * (C) 2010-2011 by On-Waves |
| 5 | * All Rights Reserved |
| 6 | * |
| 7 | * This program is free software; you can redistribute it and/or modify |
| 8 | * it under the terms of the GNU General Public License as published by |
| 9 | * the Free Software Foundation; either version 2 of the License, or |
| 10 | * (at your option) any later version. |
| 11 | * |
| 12 | * This program is distributed in the hope that it will be useful, |
| 13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 15 | * GNU General Public License for more details. |
| 16 | * |
| 17 | * You should have received a copy of the GNU General Public License along |
| 18 | * with this program; if not, write to the Free Software Foundation, Inc., |
| 19 | * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. |
| 20 | * |
| 21 | */ |
| 22 | |
| 23 | #include <mtp_data.h> |
| 24 | #include <mtp_level3.h> |
| 25 | #include <mtp_pcap.h> |
| 26 | #include <thread.h> |
| 27 | #include <bsc_data.h> |
| 28 | #include <snmp_mtp.h> |
| 29 | #include <cellmgr_debug.h> |
Holger Hans Peter Freyther | 9cf11bc | 2011-01-17 15:53:06 +0100 | [diff] [blame] | 30 | #include <sctp_m2ua.h> |
Holger Hans Peter Freyther | a93b83b | 2011-01-17 15:21:06 +0100 | [diff] [blame] | 31 | |
Holger Hans Peter Freyther | 0292127 | 2011-01-22 23:05:03 +0100 | [diff] [blame^] | 32 | #include <osmocom/m2ua/m2ua_msg.h> |
| 33 | |
Holger Hans Peter Freyther | a93b83b | 2011-01-17 15:21:06 +0100 | [diff] [blame] | 34 | #include <osmocore/talloc.h> |
| 35 | |
| 36 | #include <osmocom/vty/vty.h> |
| 37 | #include <osmocom/vty/telnet_interface.h> |
| 38 | |
| 39 | #include <sys/stat.h> |
| 40 | #include <sys/types.h> |
| 41 | |
| 42 | #include <fcntl.h> |
| 43 | #include <signal.h> |
| 44 | #include <stdio.h> |
| 45 | #include <stdlib.h> |
| 46 | #include <string.h> |
| 47 | #include <assert.h> |
| 48 | #include <unistd.h> |
| 49 | |
| 50 | #ifndef _GNU_SOURCE |
| 51 | #define _GNU_SOURCE |
| 52 | #endif |
| 53 | #include <getopt.h> |
| 54 | |
| 55 | #undef PACKAGE_NAME |
| 56 | #undef PACKAGE_VERSION |
| 57 | #undef PACKAGE_BUGREPORT |
| 58 | #undef PACKAGE_TARNAME |
| 59 | #undef PACKAGE_STRING |
| 60 | #include <cellmgr_config.h> |
| 61 | |
| 62 | static struct log_target *stderr_target; |
| 63 | |
| 64 | static char *config = "osmo_stp.cfg"; |
| 65 | |
| 66 | struct bsc_data bsc; |
| 67 | extern void cell_vty_init(void); |
| 68 | |
| 69 | /* |
| 70 | * methods called from the MTP Level3 part |
| 71 | */ |
| 72 | void mtp_link_set_forward_sccp(struct mtp_link_set *link, struct msgb *_msg, int sls) |
| 73 | { |
Holger Hans Peter Freyther | 9cf11bc | 2011-01-17 15:53:06 +0100 | [diff] [blame] | 74 | struct mtp_link_set *target; |
| 75 | |
| 76 | target = bsc.m2ua_set == link ? bsc.link_set : bsc.m2ua_set; |
| 77 | mtp_link_set_submit_sccp_data(target, sls, _msg->l2h, msgb_l2len(_msg)); |
Holger Hans Peter Freyther | a93b83b | 2011-01-17 15:21:06 +0100 | [diff] [blame] | 78 | } |
| 79 | |
Holger Hans Peter Freyther | 1b6901e | 2011-01-17 16:13:28 +0100 | [diff] [blame] | 80 | void mtp_link_set_forward_isup(struct mtp_link_set *set, struct msgb *msg, int sls) |
| 81 | { |
| 82 | struct mtp_link_set *target; |
| 83 | |
| 84 | target = bsc.m2ua_set == set ? bsc.link_set : bsc.m2ua_set; |
| 85 | mtp_link_set_submit_isup_data(target, sls, msg->l3h, msgb_l3len(msg)); |
| 86 | } |
| 87 | |
Holger Hans Peter Freyther | a93b83b | 2011-01-17 15:21:06 +0100 | [diff] [blame] | 88 | void mtp_linkset_down(struct mtp_link_set *set) |
| 89 | { |
| 90 | set->available = 0; |
| 91 | mtp_link_set_stop(set); |
| 92 | } |
| 93 | |
| 94 | void mtp_linkset_up(struct mtp_link_set *set) |
| 95 | { |
| 96 | set->available = 1; |
| 97 | mtp_link_set_reset(set); |
| 98 | } |
| 99 | |
| 100 | static void print_usage() |
| 101 | { |
| 102 | printf("Usage: osmo-stp\n"); |
| 103 | } |
| 104 | |
| 105 | static void sigint() |
| 106 | { |
| 107 | static pthread_mutex_t exit_mutex = PTHREAD_MUTEX_INITIALIZER; |
| 108 | static int handled = 0; |
| 109 | |
| 110 | /* failed to lock */ |
| 111 | if (pthread_mutex_trylock(&exit_mutex) != 0) |
| 112 | return; |
| 113 | if (handled) |
| 114 | goto out; |
| 115 | |
| 116 | printf("Terminating.\n"); |
| 117 | handled = 1; |
| 118 | if (bsc.setup) |
| 119 | link_shutdown_all(bsc.link_set); |
| 120 | exit(0); |
| 121 | |
| 122 | out: |
| 123 | pthread_mutex_unlock(&exit_mutex); |
| 124 | } |
| 125 | |
| 126 | static void print_help() |
| 127 | { |
| 128 | printf(" Some useful help...\n"); |
| 129 | printf(" -h --help this text\n"); |
| 130 | printf(" -c --config=CFG The config file to use.\n"); |
| 131 | printf(" -p --pcap=FILE. Write MSUs to the PCAP file.\n"); |
| 132 | printf(" -c --once. Send the SLTM msg only once.\n"); |
| 133 | printf(" -v --version. Print the version number\n"); |
| 134 | } |
| 135 | |
| 136 | static void handle_options(int argc, char **argv) |
| 137 | { |
| 138 | while (1) { |
| 139 | int option_index = 0, c; |
| 140 | static struct option long_options[] = { |
| 141 | {"help", 0, 0, 'h'}, |
| 142 | {"config", 1, 0, 'c'}, |
| 143 | {"pcap", 1, 0, 'p'}, |
| 144 | {"version", 0, 0, 0}, |
| 145 | {0, 0, 0, 0}, |
| 146 | }; |
| 147 | |
| 148 | c = getopt_long(argc, argv, "hc:p:v", |
| 149 | long_options, &option_index); |
| 150 | if (c == -1) |
| 151 | break; |
| 152 | |
| 153 | switch (c) { |
| 154 | case 'h': |
| 155 | print_usage(); |
| 156 | print_help(); |
| 157 | exit(0); |
| 158 | case 'p': |
| 159 | if (bsc.pcap_fd >= 0) |
| 160 | close(bsc.pcap_fd); |
| 161 | bsc.pcap_fd = open(optarg, O_WRONLY | O_TRUNC | O_CREAT, S_IRUSR | S_IWUSR | S_IRGRP| S_IROTH); |
| 162 | if (bsc.pcap_fd < 0) { |
| 163 | fprintf(stderr, "Failed to open PCAP file.\n"); |
| 164 | exit(0); |
| 165 | } |
| 166 | mtp_pcap_write_header(bsc.pcap_fd); |
| 167 | break; |
| 168 | case 'c': |
| 169 | config = optarg; |
| 170 | break; |
| 171 | case 'v': |
| 172 | printf("This is %s version %s.\n", PACKAGE, VERSION); |
| 173 | exit(0); |
| 174 | break; |
| 175 | default: |
| 176 | fprintf(stderr, "Unknown option.\n"); |
| 177 | break; |
| 178 | } |
| 179 | } |
| 180 | } |
| 181 | |
| 182 | int main(int argc, char **argv) |
| 183 | { |
| 184 | int rc; |
Holger Hans Peter Freyther | 9cf11bc | 2011-01-17 15:53:06 +0100 | [diff] [blame] | 185 | struct mtp_link *data; |
| 186 | struct mtp_m2ua_link *lnk; |
Holger Hans Peter Freyther | a93b83b | 2011-01-17 15:21:06 +0100 | [diff] [blame] | 187 | INIT_LLIST_HEAD(&bsc.sccp_connections); |
| 188 | |
Holger Hans Peter Freyther | a310e53 | 2011-01-22 16:34:16 +0100 | [diff] [blame] | 189 | bsc.app = APP_STP; |
Holger Hans Peter Freyther | a93b83b | 2011-01-17 15:21:06 +0100 | [diff] [blame] | 190 | bsc.dpc = 1; |
| 191 | bsc.opc = 0; |
| 192 | bsc.sccp_opc = -1; |
Holger Hans Peter Freyther | d8a73e2 | 2011-01-17 22:37:11 +0100 | [diff] [blame] | 193 | bsc.isup_opc = -1; |
Holger Hans Peter Freyther | a93b83b | 2011-01-17 15:21:06 +0100 | [diff] [blame] | 194 | bsc.udp_port = 3456; |
| 195 | bsc.udp_ip = NULL; |
| 196 | bsc.src_port = 1313; |
| 197 | bsc.ni_ni = MTP_NI_NATION_NET; |
| 198 | bsc.ni_spare = 0; |
Holger Hans Peter Freyther | c6bfa27 | 2011-01-22 17:06:34 +0100 | [diff] [blame] | 199 | bsc.udp_nr_links = 1; |
Holger Hans Peter Freyther | a93b83b | 2011-01-17 15:21:06 +0100 | [diff] [blame] | 200 | |
| 201 | mtp_link_set_init(); |
| 202 | thread_init(); |
| 203 | |
| 204 | log_init(&log_info); |
| 205 | stderr_target = log_target_create_stderr(); |
| 206 | log_add_target(stderr_target); |
| 207 | |
| 208 | /* enable filters */ |
| 209 | log_set_all_filter(stderr_target, 1); |
| 210 | log_set_category_filter(stderr_target, DINP, 1, LOGL_INFO); |
| 211 | log_set_category_filter(stderr_target, DSCCP, 1, LOGL_INFO); |
| 212 | log_set_category_filter(stderr_target, DMSC, 1, LOGL_INFO); |
| 213 | log_set_category_filter(stderr_target, DMGCP, 1, LOGL_INFO); |
| 214 | log_set_print_timestamp(stderr_target, 1); |
| 215 | log_set_use_color(stderr_target, 0); |
| 216 | |
| 217 | sccp_set_log_area(DSCCP); |
Holger Hans Peter Freyther | 0292127 | 2011-01-22 23:05:03 +0100 | [diff] [blame^] | 218 | m2ua_set_log_area(DM2UA); |
Holger Hans Peter Freyther | a93b83b | 2011-01-17 15:21:06 +0100 | [diff] [blame] | 219 | |
| 220 | bsc.setup = 0; |
| 221 | bsc.msc_address = "127.0.0.1"; |
| 222 | bsc.pcap_fd = -1; |
| 223 | bsc.udp_reset_timeout = 180; |
| 224 | bsc.ping_time = 20; |
| 225 | bsc.pong_time = 5; |
| 226 | bsc.msc_time = 20; |
| 227 | bsc.forward_only = 1; |
| 228 | |
| 229 | handle_options(argc, argv); |
| 230 | |
| 231 | signal(SIGPIPE, SIG_IGN); |
| 232 | signal(SIGINT, sigint); |
| 233 | srand(time(NULL)); |
| 234 | |
| 235 | cell_vty_init(); |
| 236 | if (vty_read_config_file(config, NULL) < 0) { |
| 237 | fprintf(stderr, "Failed to read the VTY config.\n"); |
| 238 | return -1; |
| 239 | } |
| 240 | |
| 241 | rc = telnet_init(NULL, NULL, 4242); |
| 242 | if (rc < 0) |
| 243 | return rc; |
| 244 | |
| 245 | if (link_init(&bsc) != 0) |
| 246 | return -1; |
| 247 | |
Holger Hans Peter Freyther | 9cf11bc | 2011-01-17 15:53:06 +0100 | [diff] [blame] | 248 | bsc.m2ua_set = mtp_link_set_alloc(); |
| 249 | bsc.m2ua_set->dpc = 92; |
| 250 | bsc.m2ua_set->opc = 9; |
| 251 | bsc.m2ua_set->sccp_opc = 9; |
Holger Hans Peter Freyther | d8a73e2 | 2011-01-17 22:37:11 +0100 | [diff] [blame] | 252 | bsc.m2ua_set->isup_opc = 9; |
Holger Hans Peter Freyther | 9cf11bc | 2011-01-17 15:53:06 +0100 | [diff] [blame] | 253 | bsc.m2ua_set->ni = 3; |
| 254 | bsc.m2ua_set->bsc = &bsc; |
Holger Hans Peter Freyther | f6375b4 | 2011-01-22 21:01:23 +0100 | [diff] [blame] | 255 | bsc.m2ua_set->pcap_fd = bsc.pcap_fd; |
Holger Hans Peter Freyther | 9cf11bc | 2011-01-17 15:53:06 +0100 | [diff] [blame] | 256 | |
Holger Hans Peter Freyther | efbd8c2 | 2011-01-17 20:21:45 +0100 | [diff] [blame] | 257 | /* for both links we want to have all isup messages */ |
| 258 | bsc.m2ua_set->pass_all_isup = 1; |
| 259 | bsc.link_set->pass_all_isup = 1; |
| 260 | |
Holger Hans Peter Freyther | 9cf11bc | 2011-01-17 15:53:06 +0100 | [diff] [blame] | 261 | lnk = sctp_m2ua_transp_create("0.0.0.0", 2904); |
Holger Hans Peter Freyther | f6375b4 | 2011-01-22 21:01:23 +0100 | [diff] [blame] | 262 | lnk->base.pcap_fd = -1; |
Holger Hans Peter Freyther | 9cf11bc | 2011-01-17 15:53:06 +0100 | [diff] [blame] | 263 | mtp_link_set_add_link(bsc.m2ua_set, (struct mtp_link *) lnk); |
| 264 | |
| 265 | llist_for_each_entry(data, &bsc.m2ua_set->links, entry) |
| 266 | data->start(data); |
| 267 | |
Holger Hans Peter Freyther | a93b83b | 2011-01-17 15:21:06 +0100 | [diff] [blame] | 268 | while (1) { |
| 269 | bsc_select_main(0); |
| 270 | } |
| 271 | |
| 272 | return 0; |
| 273 | } |
| 274 | |
| 275 | /* dummy for links */ |
| 276 | int msc_init(struct bsc_data *data, int dummy) |
| 277 | { |
| 278 | return 0; |
| 279 | } |
| 280 | |