diff options
Diffstat (limited to 'src/gprs/gb_proxy_main.c')
-rw-r--r-- | src/gprs/gb_proxy_main.c | 317 |
1 files changed, 0 insertions, 317 deletions
diff --git a/src/gprs/gb_proxy_main.c b/src/gprs/gb_proxy_main.c deleted file mode 100644 index caff27f6f..000000000 --- a/src/gprs/gb_proxy_main.c +++ /dev/null @@ -1,317 +0,0 @@ -/* NS-over-IP proxy */ - -/* (C) 2010 by Harald Welte <laforge@gnumonks.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/>. - * - */ - -#include <unistd.h> -#include <stdio.h> -#include <stdlib.h> -#include <string.h> -#include <getopt.h> -#include <errno.h> -#include <signal.h> -#include <sys/fcntl.h> -#include <sys/stat.h> -#include <sys/socket.h> -#include <netinet/in.h> -#include <arpa/inet.h> - -#include <osmocom/core/application.h> -#include <osmocom/core/talloc.h> -#include <osmocom/core/select.h> -#include <osmocom/core/rate_ctr.h> -#include <osmocom/core/stats.h> - -#include <osmocom/gprs/gprs_ns.h> -#include <osmocom/gprs/gprs_bssgp.h> - -#include <openbsc/signal.h> -#include <openbsc/debug.h> -#include <openbsc/vty.h> -#include <openbsc/gb_proxy.h> - -#include <osmocom/vty/command.h> -#include <osmocom/vty/telnet_interface.h> -#include <osmocom/vty/logging.h> -#include <osmocom/vty/stats.h> -#include <osmocom/vty/ports.h> - -#include "../../bscconfig.h" - -#define _GNU_SOURCE -#include <getopt.h> - -void *tall_bsc_ctx; - -const char *openbsc_copyright = - "Copyright (C) 2010 Harald Welte and On-Waves\r\n" - "License AGPLv3+: GNU AGPL version 3 or later <http://gnu.org/licenses/agpl-3.0.html>\r\n" - "This is free software: you are free to change and redistribute it.\r\n" - "There is NO WARRANTY, to the extent permitted by law.\r\n"; - -static char *config_file = "osmo_gbproxy.cfg"; -struct gbproxy_config gbcfg = {0}; -static int daemonize = 0; - -/* Pointer to the SGSN peer */ -extern struct gbprox_peer *gbprox_peer_sgsn; - -/* call-back function for the NS protocol */ -static int proxy_ns_cb(enum gprs_ns_evt event, struct gprs_nsvc *nsvc, - struct msgb *msg, uint16_t bvci) -{ - int rc = 0; - - switch (event) { - case GPRS_NS_EVT_UNIT_DATA: - rc = gbprox_rcvmsg(&gbcfg, msg, nsvc->nsei, bvci, nsvc->nsvci); - break; - default: - LOGP(DGPRS, LOGL_ERROR, "SGSN: Unknown event %u from NS\n", event); - if (msg) - msgb_free(msg); - rc = -EIO; - break; - } - return rc; -} - -static void signal_handler(int signal) -{ - fprintf(stdout, "signal %u received\n", signal); - - switch (signal) { - case SIGINT: - case SIGTERM: - osmo_signal_dispatch(SS_L_GLOBAL, S_L_GLOBAL_SHUTDOWN, NULL); - sleep(1); - exit(0); - break; - case SIGABRT: - /* in case of abort, we want to obtain a talloc report - * and then return to the caller, who will abort the process */ - case SIGUSR1: - talloc_report(tall_vty_ctx, stderr); - talloc_report_full(tall_bsc_ctx, stderr); - break; - case SIGUSR2: - talloc_report_full(tall_vty_ctx, stderr); - break; - default: - break; - } -} - -static void print_usage() -{ - printf("Usage: bsc_hack\n"); -} - -static void print_help() -{ - printf(" Some useful help...\n"); - printf(" -h --help this text\n"); - printf(" -d option --debug=DNS:DGPRS,0:0 enable debugging\n"); - printf(" -D --daemonize Fork the process into a background daemon\n"); - printf(" -c --config-file filename The config file to use.\n"); - printf(" -s --disable-color\n"); - printf(" -T --timestamp Prefix every log line with a timestamp\n"); - printf(" -V --version. Print the version of OpenBSC.\n"); - printf(" -e --log-level number. Set a global loglevel.\n"); -} - -static void handle_options(int argc, char **argv) -{ - while (1) { - int option_index = 0, c; - static struct option long_options[] = { - { "help", 0, 0, 'h' }, - { "debug", 1, 0, 'd' }, - { "daemonize", 0, 0, 'D' }, - { "config-file", 1, 0, 'c' }, - { "disable-color", 0, 0, 's' }, - { "timestamp", 0, 0, 'T' }, - { "version", 0, 0, 'V' }, - { "log-level", 1, 0, 'e' }, - { 0, 0, 0, 0 } - }; - - c = getopt_long(argc, argv, "hd:Dc:sTVe:", - long_options, &option_index); - if (c == -1) - break; - - switch (c) { - case 'h': - print_usage(); - print_help(); - exit(0); - case 's': - log_set_use_color(osmo_stderr_target, 0); - break; - case 'd': - log_parse_category_mask(osmo_stderr_target, optarg); - break; - case 'D': - daemonize = 1; - break; - case 'c': - config_file = optarg; - break; - case 'T': - log_set_print_timestamp(osmo_stderr_target, 1); - break; - case 'e': - log_set_log_level(osmo_stderr_target, atoi(optarg)); - break; - case 'V': - print_version(1); - exit(0); - break; - default: - break; - } - } -} - -extern int bsc_vty_go_parent(struct vty *vty); - -static struct vty_app_info vty_info = { - .name = "OsmoGbProxy", - .version = PACKAGE_VERSION, - .go_parent_cb = bsc_vty_go_parent, - .is_config_node = bsc_vty_is_config_node, -}; - -/* default categories */ -static struct log_info_cat gprs_categories[] = { - [DGPRS] = { - .name = "DGPRS", - .description = "GPRS Packet Service", - .enabled = 1, .loglevel = LOGL_DEBUG, - }, - [DNS] = { - .name = "DNS", - .description = "GPRS Network Service (NS)", - .enabled = 1, .loglevel = LOGL_INFO, - }, - [DBSSGP] = { - .name = "DBSSGP", - .description = "GPRS BSS Gateway Protocol (BSSGP)", - .enabled = 1, .loglevel = LOGL_DEBUG, - }, -}; - -static const struct log_info gprs_log_info = { - .filter_fn = gprs_log_filter_fn, - .cat = gprs_categories, - .num_cat = ARRAY_SIZE(gprs_categories), -}; - -int main(int argc, char **argv) -{ - struct gsm_network dummy_network; - int rc; - - tall_bsc_ctx = talloc_named_const(NULL, 0, "nsip_proxy"); - msgb_talloc_ctx_init(tall_bsc_ctx, 0); - - signal(SIGINT, &signal_handler); - signal(SIGTERM, &signal_handler); - signal(SIGABRT, &signal_handler); - signal(SIGUSR1, &signal_handler); - signal(SIGUSR2, &signal_handler); - osmo_init_ignore_signals(); - - osmo_init_logging(&gprs_log_info); - - vty_info.copyright = openbsc_copyright; - vty_init(&vty_info); - logging_vty_add_cmds(NULL); - osmo_stats_vty_add_cmds(&gprs_log_info); - gbproxy_vty_init(); - - handle_options(argc, argv); - - rate_ctr_init(tall_bsc_ctx); - osmo_stats_init(tall_bsc_ctx); - - bssgp_nsi = gprs_ns_instantiate(&proxy_ns_cb, tall_bsc_ctx); - if (!bssgp_nsi) { - LOGP(DGPRS, LOGL_ERROR, "Unable to instantiate NS\n"); - exit(1); - } - gbproxy_init_config(&gbcfg); - gbcfg.nsi = bssgp_nsi; - gprs_ns_vty_init(bssgp_nsi); - gprs_ns_set_log_ss(DNS); - bssgp_set_log_ss(DBSSGP); - osmo_signal_register_handler(SS_L_NS, &gbprox_signal, &gbcfg); - - rc = gbproxy_parse_config(config_file, &gbcfg); - if (rc < 0) { - LOGP(DGPRS, LOGL_FATAL, "Cannot parse config file\n"); - exit(2); - } - - /* start telnet after reading config for vty_get_bind_addr() */ - rc = telnet_init_dynif(tall_bsc_ctx, &dummy_network, - vty_get_bind_addr(), OSMO_VTY_PORT_GBPROXY); - if (rc < 0) - exit(1); - - if (!gprs_nsvc_by_nsei(gbcfg.nsi, gbcfg.nsip_sgsn_nsei)) { - LOGP(DGPRS, LOGL_FATAL, "You cannot proxy to NSEI %u " - "without creating that NSEI before\n", - gbcfg.nsip_sgsn_nsei); - exit(2); - } - - rc = gprs_ns_nsip_listen(bssgp_nsi); - if (rc < 0) { - LOGP(DGPRS, LOGL_FATAL, "Cannot bind/listen on NSIP socket\n"); - exit(2); - } - - rc = gprs_ns_frgre_listen(bssgp_nsi); - if (rc < 0) { - LOGP(DGPRS, LOGL_FATAL, "Cannot bind/listen GRE " - "socket. Do you have CAP_NET_RAW?\n"); - exit(2); - } - - if (daemonize) { - rc = osmo_daemonize(); - if (rc < 0) { - perror("Error during daemonize"); - exit(1); - } - } - - /* Reset all the persistent NS-VCs that we've read from the config */ - gbprox_reset_persistent_nsvcs(bssgp_nsi); - - while (1) { - rc = osmo_select_main(0); - if (rc < 0) - exit(3); - } - - exit(0); -} |