From 03fd8d014f9871896a86534432c8757d65a576fe Mon Sep 17 00:00:00 2001 From: Jonathan Santos Date: Wed, 25 May 2011 13:54:02 -0400 Subject: Import upstream version 0.9.13 --- src/osmo-bsc_mgcp/Makefile.am | 10 + src/osmo-bsc_mgcp/Makefile.in | 487 ++++++++++++++++++++++++++++++++++++++++++ src/osmo-bsc_mgcp/mgcp_main.c | 283 ++++++++++++++++++++++++ 3 files changed, 780 insertions(+) create mode 100644 src/osmo-bsc_mgcp/Makefile.am create mode 100644 src/osmo-bsc_mgcp/Makefile.in create mode 100644 src/osmo-bsc_mgcp/mgcp_main.c (limited to 'src/osmo-bsc_mgcp') diff --git a/src/osmo-bsc_mgcp/Makefile.am b/src/osmo-bsc_mgcp/Makefile.am new file mode 100644 index 000000000..32cc81300 --- /dev/null +++ b/src/osmo-bsc_mgcp/Makefile.am @@ -0,0 +1,10 @@ +INCLUDES = $(all_includes) -I$(top_srcdir)/include -I$(top_builddir) +AM_CFLAGS=-Wall $(LIBOSMOCORE_CFLAGS) $(LIBOSMOVTY_CFLAGS) $(COVERAGE_CFLAGS) +AM_LDFLAGS = $(LIBOSMOCORE_LIBS) $(COVERAGE_LDFLAGS) + +bin_PROGRAMS = bsc_mgcp + +bsc_mgcp_SOURCES = mgcp_main.c +bsc_mgcp_LDADD = $(top_builddir)/src/libcommon/libcommon.a \ + $(top_builddir)/src/libmgcp/libmgcp.a \ + $(LIBOSMOVTY_LIBS) diff --git a/src/osmo-bsc_mgcp/Makefile.in b/src/osmo-bsc_mgcp/Makefile.in new file mode 100644 index 000000000..714fae3ac --- /dev/null +++ b/src/osmo-bsc_mgcp/Makefile.in @@ -0,0 +1,487 @@ +# Makefile.in generated by automake 1.11.1 from Makefile.am. +# @configure_input@ + +# Copyright (C) 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, +# 2003, 2004, 2005, 2006, 2007, 2008, 2009 Free Software Foundation, +# Inc. +# This Makefile.in is free software; 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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 . + * + */ + +#include +#include +#include +#include +#include +#include +#include + +#include + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include + +#include "../../bscconfig.h" + +/* this is here for the vty... it will never be called */ +void subscr_put() { abort(); } + +#define _GNU_SOURCE +#include + +#warning "Make use of the rtp proxy code" + +static struct mgcp_config *cfg; +static int reset_endpoints = 0; +static int daemonize = 0; + +const char *openbsc_copyright = + "Copyright (C) 2009-2010 Holger Freyther and On-Waves\r\n" + "Contributions by Daniel Willmann, Jan Lübbe, Stefan Schmidt\r\n" + "Dieter Spaar, Andreas Eversberg, Harald Welte\r\n\r\n" + "License AGPLv3+: GNU AGPL version 3 or later \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 = "mgcp.cfg"; + +/* used by msgb and mgcp */ +void *tall_bsc_ctx = NULL; + +static void print_help() +{ + printf("Some useful help...\n"); + printf(" -h --help is printing this text.\n"); + printf(" -c --config-file filename The config file to use.\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'}, + {"config-file", 1, 0, 'c'}, + {"daemonize", 0, 0, 'D'}, + {"version", 0, 0, 'V'}, + {0, 0, 0, 0}, + }; + + c = getopt_long(argc, argv, "hc:VD", long_options, &option_index); + + if (c == -1) + break; + + switch(c) { + case 'h': + print_help(); + exit(0); + break; + case 'c': + config_file = talloc_strdup(tall_bsc_ctx, optarg); + break; + case 'V': + print_version(1); + exit(0); + break; + case 'D': + daemonize = 1; + break; + default: + /* ignore */ + break; + }; + } +} + +/* simply remember this */ +static int mgcp_rsip_cb(struct mgcp_config *cfg) +{ + reset_endpoints = 1; + + return 0; +} + +static int mgcp_change_cb(struct mgcp_trunk_config *cfg, int endpoint, int state) +{ + if (state != MGCP_ENDP_MDCX) + return 0; + + mgcp_send_dummy(&cfg->endpoints[endpoint]); + return 0; +} + +static int read_call_agent(struct bsc_fd *fd, unsigned int what) +{ + struct sockaddr_in addr; + socklen_t slen = sizeof(addr); + struct msgb *msg; + struct msgb *resp; + int i; + + msg = (struct msgb *) fd->data; + + /* read one less so we can use it as a \0 */ + int rc = recvfrom(cfg->gw_fd.bfd.fd, msg->data, msg->data_len - 1, 0, + (struct sockaddr *) &addr, &slen); + if (rc < 0) { + perror("Gateway failed to read"); + return -1; + } else if (slen > sizeof(addr)) { + fprintf(stderr, "Gateway received message from outerspace: %lu %d\n", + slen, sizeof(addr)); + return -1; + } + + /* handle message now */ + msg->l2h = msgb_put(msg, rc); + resp = mgcp_handle_message(cfg, msg); + msgb_reset(msg); + + if (resp) { + sendto(cfg->gw_fd.bfd.fd, resp->l2h, msgb_l2len(resp), 0, (struct sockaddr *) &addr, sizeof(addr)); + msgb_free(resp); + } + + if (reset_endpoints) { + LOGP(DMGCP, LOGL_NOTICE, "Asked to reset endpoints.\n"); + reset_endpoints = 0; + + /* is checking in_addr.s_addr == INADDR_LOOPBACK making it more secure? */ + for (i = 1; i < cfg->trunk.number_endpoints; ++i) + mgcp_free_endp(&cfg->trunk.endpoints[i]); + } + + return 0; +} + +extern enum node_type bsc_vty_go_parent(struct vty *vty); + +static struct vty_app_info vty_info = { + .name = "OpenBSC MGCP", + .version = PACKAGE_VERSION, + .go_parent_cb = bsc_vty_go_parent, + .is_config_node = bsc_vty_is_config_node, +}; + +int main(int argc, char **argv) +{ + struct gsm_network dummy_network; + struct sockaddr_in addr; + int on = 1, rc; + struct log_target *stderr_target; + + tall_bsc_ctx = talloc_named_const(NULL, 1, "mgcp-callagent"); + + log_init(&log_info); + stderr_target = log_target_create_stderr(); + log_add_target(stderr_target); + log_set_all_filter(stderr_target, 1); + + cfg = mgcp_config_alloc(); + if (!cfg) + return -1; + + vty_info.copyright = openbsc_copyright; + vty_init(&vty_info); + logging_vty_add_cmds(); + mgcp_vty_init(); + + handle_options(argc, argv); + + rc = mgcp_parse_config(config_file, cfg); + if (rc < 0) + return rc; + + rc = telnet_init(tall_bsc_ctx, &dummy_network, 4243); + if (rc < 0) + return rc; + + /* set some callbacks */ + cfg->reset_cb = mgcp_rsip_cb; + cfg->change_cb = mgcp_change_cb; + + /* we need to bind a socket */ + if (rc == 0) { + cfg->gw_fd.bfd.when = BSC_FD_READ; + cfg->gw_fd.bfd.cb = read_call_agent; + cfg->gw_fd.bfd.fd = socket(AF_INET, SOCK_DGRAM, 0); + if (cfg->gw_fd.bfd.fd < 0) { + perror("Gateway failed to listen"); + return -1; + } + + setsockopt(cfg->gw_fd.bfd.fd, SOL_SOCKET, SO_REUSEADDR, &on, sizeof(on)); + + memset(&addr, 0, sizeof(addr)); + addr.sin_family = AF_INET; + addr.sin_port = htons(cfg->source_port); + inet_aton(cfg->source_addr, &addr.sin_addr); + + if (bind(cfg->gw_fd.bfd.fd, (struct sockaddr *) &addr, sizeof(addr)) < 0) { + perror("Gateway failed to bind"); + return -1; + } + + cfg->gw_fd.bfd.data = msgb_alloc(4096, "mgcp-msg"); + if (!cfg->gw_fd.bfd.data) { + fprintf(stderr, "Gateway memory error.\n"); + return -1; + } + + + if (bsc_register_fd(&cfg->gw_fd.bfd) != 0) { + LOGP(DMGCP, LOGL_FATAL, "Failed to register the fd\n"); + return -1; + } + + LOGP(DMGCP, LOGL_NOTICE, "Configured for MGCP.\n"); + } + + /* initialisation */ + srand(time(NULL)); + + if (daemonize) { + rc = osmo_daemonize(); + if (rc < 0) { + perror("Error during daemonize"); + exit(1); + } + } + + /* main loop */ + while (1) { + bsc_select_main(0); + } + + + return 0; +} -- cgit v1.2.3