Move out sgsn to its own subdir

Change-Id: I16fccc0eadf588599b9e5578d0f4dbaf9df81737

1 files changed, 0 insertions, 536 deletions

diff --git a/src/gprs/sgsn_main.c b/src/gprs/sgsn_main.c
deleted file mode 100644
index eef5f8f22..000000000
--- a/src/gprs/sgsn_main.c
+++ /dev/null
@@ -1,536 +0,0 @@
-/* GPRS SGSN Implementation */
-
-/* (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 <time.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/logging.h>
-#include <osmocom/core/stats.h>
-
-#include <osmocom/gprs/gprs_ns.h>
-#include <osmocom/gprs/gprs_bssgp.h>
-
-#include <osmocom/vty/telnet_interface.h>
-#include <osmocom/vty/logging.h>
-#include <osmocom/vty/stats.h>
-#include <osmocom/vty/ports.h>
-#include <osmocom/vty/misc.h>
-
-#include <osmocom/ctrl/control_vty.h>
-
-#include <osmocom/sgsn/signal.h>
-#include <osmocom/sgsn/debug.h>
-#include <osmocom/sgsn/vty.h>
-#include <osmocom/sgsn/sgsn.h>
-#include <osmocom/sgsn/gprs_llc.h>
-#include <osmocom/sgsn/gprs_gmm.h>
-#include <osmocom/sgsn/gprs_ranap.h>
-
-#include <osmocom/ctrl/control_if.h>
-#include <osmocom/ctrl/ports.h>
-
-#include <gtp.h>
-
-#include "../../bscconfig.h"
-
-#if BUILD_IU
-#include <osmocom/sigtran/osmo_ss7.h>
-#include <osmocom/sigtran/protocol/m3ua.h>
-#include <osmocom/ranap/iu_client.h>
-#endif
-
-#define _GNU_SOURCE
-#include <getopt.h>
-
-void *tall_sgsn_ctx;
-struct ctrl_handle *g_ctrlh;
-
-struct gprs_ns_inst *sgsn_nsi;
-static int daemonize = 0;
-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";
-
-#define CONFIG_FILE_DEFAULT "osmo-sgsn.cfg"
-#define CONFIG_FILE_LEGACY "osmo_sgsn.cfg"
-
-
-struct sgsn_instance *sgsn;
-
-/* call-back function for the NS protocol */
-static int sgsn_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:
-		/* hand the message into the BSSGP implementation */
-		rc = bssgp_rcvmsg(msg);
-		break;
-	default:
-		LOGP(DGPRS, LOGL_ERROR, "SGSN: Unknown event %u from NS\n", event);
-		if (msg)
-			msgb_free(msg);
-		rc = -EIO;
-		break;
-	}
-	return rc;
-}
-
-/* call-back function for the BSSGP protocol */
-int bssgp_prim_cb(struct osmo_prim_hdr *oph, void *ctx)
-{
-	struct osmo_bssgp_prim *bp;
-	bp = container_of(oph, struct osmo_bssgp_prim, oph);
-
-	switch (oph->sap) {
-	case SAP_BSSGP_LL:
-		switch (oph->primitive) {
-		case PRIM_BSSGP_UL_UD:
-			return gprs_llc_rcvmsg(oph->msg, bp->tp);
-		}
-		break;
-	case SAP_BSSGP_GMM:
-		switch (oph->primitive) {
-		case PRIM_BSSGP_GMM_SUSPEND:
-			return gprs_gmm_rx_suspend(bp->ra_id, bp->tlli);
-		case PRIM_BSSGP_GMM_RESUME:
-			return gprs_gmm_rx_resume(bp->ra_id, bp->tlli,
-						  bp->u.resume.suspend_ref);
-		}
-		break;
-	case SAP_BSSGP_NM:
-		break;
-	}
-	return 0;
-}
-
-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_sgsn_ctx, stderr);
-		break;
-	case SIGUSR2:
-		talloc_report_full(tall_vty_ctx, stderr);
-		break;
-	default:
-		break;
-	}
-}
-
-/* NSI that BSSGP uses when transmitting on NS */
-extern struct gprs_ns_inst *bssgp_nsi;
-
-int sgsn_vty_is_config_node(struct vty *vty, int node)
-{
-	/* So far the SGSN has no nested nodes that need parent node
-	 * declaration, except for the ss7 vty nodes. */
-	switch (node) {
-	case SGSN_NODE:
-		return 1;
-	default:
-#if BUILD_IU
-		return osmo_ss7_is_config_node(vty, node);
-#else
-		return 0;
-#endif
-	}
-}
-
-int sgsn_vty_go_parent(struct vty *vty)
-{
-	/* So far the SGSN has no nested nodes that need parent node
-	 * declaration, except for the ss7 vty nodes. */
-#if BUILD_IU
-	return osmo_ss7_vty_go_parent(vty);
-#else
-	vty->node = CONFIG_NODE;
-	vty->index = NULL;
-	return 0;
-#endif
-}
-
-static struct vty_app_info vty_info = {
-	.name 		= "OsmoSGSN",
-	.version	= PACKAGE_VERSION,
-	.go_parent_cb	= sgsn_vty_go_parent,
-	.is_config_node	= sgsn_vty_is_config_node,
-};
-
-static void print_help(void)
-{
-	printf("Some useful help...\n");
-	printf("  -h --help\tthis text\n");
-	printf("  -V --version\tPrint the version\n");
-	printf("  -D --daemonize\tFork the process into a background daemon\n");
-	printf("  -d option --debug\tenable Debugging\n");
-	printf("  -s --disable-color\n");
-	printf("  -c --config-file\tThe config file to use [%s]\n", CONFIG_FILE_DEFAULT);
-	printf("  -e --log-level number\tSet a global log level\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'},
-			{NULL, 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':
-			osmo_talloc_replace_string(sgsn, &sgsn->config_file, optarg);
-			break;
-		case 'T':
-			log_set_print_timestamp(osmo_stderr_target, 1);
-			break;
-		case 'V':
-			print_version(1);
-			exit(0);
-			break;
-		case 'e':
-			log_set_log_level(osmo_stderr_target, atoi(optarg));
-			break;
-		default:
-			/* ignore */
-			break;
-		}
-	}
-}
-
-/* default categories */
-static struct log_info_cat gprs_categories[] = {
-	[DMM] = {
-		.name = "DMM",
-		.description = "Layer3 Mobility Management (MM)",
-		.color = "\033[1;33m",
-		.enabled = 1, .loglevel = LOGL_NOTICE,
-	},
-	[DPAG]	= {
-		.name = "DPAG",
-		.description = "Paging Subsystem",
-		.color = "\033[1;38m",
-		.enabled = 1, .loglevel = LOGL_NOTICE,
-	},
-	[DMEAS] = {
-		.name = "DMEAS",
-		.description = "Radio Measurement Processing",
-		.enabled = 0, .loglevel = LOGL_NOTICE,
-	},
-	[DREF] = {
-		.name = "DREF",
-		.description = "Reference Counting",
-		.enabled = 0, .loglevel = LOGL_NOTICE,
-	},
-	[DGPRS] = {
-		.name = "DGPRS",
-		.description = "GPRS Packet Service",
-		.enabled = 1, .loglevel = LOGL_NOTICE,
-	},
-	[DNS] = {
-		.name = "DNS",
-		.description = "GPRS Network Service (NS)",
-		.enabled = 1, .loglevel = LOGL_NOTICE,
-	},
-	[DBSSGP] = {
-		.name = "DBSSGP",
-		.description = "GPRS BSS Gateway Protocol (BSSGP)",
-		.enabled = 1, .loglevel = LOGL_NOTICE,
-	},
-	[DLLC] = {
-		.name = "DLLC",
-		.description = "GPRS Logical Link Control Protocol (LLC)",
-		.enabled = 1, .loglevel = LOGL_NOTICE,
-	},
-	[DSNDCP] = {
-		.name = "DSNDCP",
-		.description = "GPRS Sub-Network Dependent Control Protocol (SNDCP)",
-		.enabled = 1, .loglevel = LOGL_NOTICE,
-	},
-	[DRANAP] = {
-		.name = "DRANAP",
-		.description = "RAN Application Part (RANAP)",
-		.enabled = 1, .loglevel = LOGL_NOTICE,
-	},
-	[DSUA] = {
-		.name = "DSUA",
-		.description = "SCCP User Adaptation (SUA)",
-		.enabled = 1, .loglevel = LOGL_NOTICE,
-	},
-	[DSLHC] = {
-		.name = "DSLHC",
-		.description = "RFC1144 TCP/IP Header compression (SLHC)",
-		.enabled = 1, .loglevel = LOGL_NOTICE,
-	},
-	[DV42BIS] = {
-		.name = "DV42BIS",
-		.description = "V.42bis data compression (SNDCP)",
-		.enabled = 1, .loglevel = LOGL_NOTICE,
-	},
-	[DGTP] = {
-		.name = "DGTP",
-		.description = "GPRS Tunnelling Protocol (GTP)",
-		.enabled = 1, .loglevel = LOGL_NOTICE,
-	},
-};
-
-static const struct log_info gprs_log_info = {
-	.filter_fn = gprs_log_filter_fn,
-	.cat = gprs_categories,
-	.num_cat = ARRAY_SIZE(gprs_categories),
-};
-
-static bool file_exists(const char *path)
-{
-	struct stat sb;
-	return stat(path, &sb) ? false : true;
-}
-
-int main(int argc, char **argv)
-{
-	int rc;
-#if BUILD_IU
-	struct osmo_sccp_instance *sccp;
-#endif
-
-	srand(time(NULL));
-	tall_sgsn_ctx = talloc_named_const(NULL, 0, "osmo_sgsn");
-	sgsn = sgsn_instance_alloc(tall_sgsn_ctx);
-	msgb_talloc_ctx_init(tall_sgsn_ctx, 0);
-	vty_info.tall_ctx = tall_sgsn_ctx;
-
-	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_logging2(tall_sgsn_ctx, &gprs_log_info);
-	osmo_stats_init(tall_sgsn_ctx);
-
-	vty_info.copyright = openbsc_copyright;
-	vty_init(&vty_info);
-	logging_vty_add_cmds();
-	osmo_talloc_vty_add_cmds();
-	osmo_stats_vty_add_cmds();
-	sgsn_vty_init(&sgsn->cfg);
-	ctrl_vty_init(tall_sgsn_ctx);
-
-#if BUILD_IU
-	osmo_ss7_init();
-	osmo_ss7_vty_init_asp(tall_sgsn_ctx);
-	osmo_sccp_vty_init();
-#endif
-
-	handle_options(argc, argv);
-
-	/* Backwards compatibility: for years, the default config file name was
-	 * osmo_sgsn.cfg. All other Osmocom programs use osmo-*.cfg with a
-	 * dash. To be able to use the new config file name without breaking
-	 * previous setups that might rely on the legacy default config file
-	 * name, we need to look for the old config file if no -c option was
-	 * passed AND no file exists with the new default file name. */
-	if (!sgsn->config_file) {
-		/* No -c option was passed */
-		if (file_exists(CONFIG_FILE_LEGACY)
-		    && !file_exists(CONFIG_FILE_DEFAULT))
-			osmo_talloc_replace_string(sgsn, &sgsn->config_file, CONFIG_FILE_LEGACY);
-		else
-			osmo_talloc_replace_string(sgsn, &sgsn->config_file, CONFIG_FILE_DEFAULT);
-	}
-
-	rate_ctr_init(tall_sgsn_ctx);
-
-	gprs_ns_set_log_ss(DNS);
-	bssgp_set_log_ss(DBSSGP);
-
-	sgsn_nsi = gprs_ns_instantiate(&sgsn_ns_cb, tall_sgsn_ctx);
-	if (!sgsn_nsi) {
-		LOGP(DGPRS, LOGL_ERROR, "Unable to instantiate NS\n");
-		exit(1);
-	}
-	bssgp_nsi = sgsn->cfg.nsi = sgsn_nsi;
-
-	gprs_llc_init("/usr/local/lib/osmocom/crypt/");
-	sgsn_rate_ctr_init();
-	sgsn_inst_init(sgsn);
-
-	gprs_ns_vty_init(bssgp_nsi);
-	bssgp_vty_init();
-	gprs_llc_vty_init();
-	gprs_sndcp_vty_init();
-	sgsn_auth_init(sgsn);
-	sgsn_cdr_init(sgsn);
-	/* FIXME: register signal handler for SS_L_NS */
-
-	rc = sgsn_parse_config(sgsn->config_file);
-	if (rc < 0) {
-		LOGP(DGPRS, LOGL_FATAL, "Error in config file\n");
-		exit(2);
-	}
-
-	/* start telnet after reading config for vty_get_bind_addr() */
-	rc = telnet_init_dynif(tall_sgsn_ctx, NULL,
-			       vty_get_bind_addr(), OSMO_VTY_PORT_SGSN);
-	if (rc < 0)
-		exit(1);
-
-	/* start control interface after reading config for
-	 * ctrl_vty_get_bind_addr() */
-	g_ctrlh = ctrl_interface_setup_dynip(NULL, ctrl_vty_get_bind_addr(),
-				    OSMO_CTRL_PORT_SGSN, NULL);
-	if (!g_ctrlh) {
-		LOGP(DGPRS, LOGL_ERROR, "Failed to create CTRL interface.\n");
-		exit(1);
-	}
-
-	if (sgsn_ctrl_cmds_install() != 0) {
-		LOGP(DGPRS, LOGL_ERROR, "Failed to install CTRL commands.\n");
-		exit(1);
-	}
-
-
-	rc = sgsn_gtp_init(sgsn);
-	if (rc) {
-		LOGP(DGPRS, LOGL_FATAL, "Cannot bind/listen on GTP socket\n");
-		exit(2);
-	} else
-		LOGP(DGPRS, LOGL_NOTICE, "libGTP v%s initialized\n", gtp_version());
-
-	rc = gprs_subscr_init(sgsn);
-	if (rc < 0) {
-		LOGP(DGPRS, LOGL_FATAL, "Cannot set up subscriber management\n");
-		exit(2);
-	}
-
-	rc = gprs_ns_nsip_listen(sgsn_nsi);
-	if (rc < 0) {
-		LOGP(DGPRS, LOGL_FATAL, "Cannot bind/listen on NSIP socket\n");
-		exit(2);
-	}
-
-	rc = gprs_ns_frgre_listen(sgsn_nsi);
-	if (rc < 0) {
-		LOGP(DGPRS, LOGL_FATAL, "Cannot bind/listen GRE "
-			"socket. Do you have CAP_NET_RAW?\n");
-		exit(2);
-	}
-
-	if (sgsn->cfg.dynamic_lookup) {
-		if (sgsn_ares_init(sgsn) != 0) {
-			LOGP(DGPRS, LOGL_FATAL,
-				"Failed to initialize c-ares(%d)\n", rc);
-			exit(4);
-		}
-	}
-
-#if BUILD_IU
-	/* Note that these are mostly defaults and can be overriden from the VTY */
-	sccp = osmo_sccp_simple_client_on_ss7_id(tall_sgsn_ctx,
-						 sgsn->cfg.iu.cs7_instance,
-						 "OsmoSGSN",
-						 (23 << 3) + 4,
-						 OSMO_SS7_ASP_PROT_M3UA,
-						 0, NULL,
-						 0, "127.0.0.1");
-	if (!sccp) {
-		printf("Setting up SCCP client failed.\n");
-		return 8;
-	}
-
-	ranap_iu_init(tall_sgsn_ctx, DRANAP, "OsmoSGSN-IuPS", sccp, gsm0408_gprs_rcvmsg_iu, sgsn_ranap_iu_event);
-#endif
-
-	if (daemonize) {
-		rc = osmo_daemonize();
-		if (rc < 0) {
-			perror("Error during daemonize");
-			exit(1);
-		}
-	}
-
-	while (1) {
-		rc = osmo_select_main(0);
-		if (rc < 0)
-			exit(3);
-	}
-
-	/* not reached */
-	exit(0);
-}