134 lines
3.1 KiB
C
134 lines
3.1 KiB
C
/* Everything related to the BSC connection */
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/*
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* (C) 2010-2012 by Holger Hans Peter Freyther <zecke@selfish.org>
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* (C) 2010-2012 by On-Waves
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* All Rights Reserved
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Affero General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Affero General Public License for more details.
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*
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* You should have received a copy of the GNU Affero General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*
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*/
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#ifndef BSC_DATA_H
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#define BSC_DATA_H
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#include "mtp_data.h"
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#include "mgcp_callagent.h"
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#include <osmocom/core/linuxlist.h>
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#include <osmocom/core/select.h>
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#include <osmocom/core/timer.h>
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#include <osmocom/core/write_queue.h>
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#include <netinet/in.h>
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#include <arpa/inet.h>
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struct bsc_data;
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struct snmp_mtp_session;
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struct msc_connection;
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struct mtp_m2ua_transport;
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struct mtp_udp_data {
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struct osmo_wqueue write_queue;
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struct osmo_timer_list snmp_poll;
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struct llist_head links;
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};
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struct mtp_udp_link {
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/* subclass */
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struct mtp_link *base;
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/* UDP specific stuff */
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struct bsc_data *bsc;
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int link_index;
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int reset_timeout;
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char *dest;
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struct sockaddr_in remote;
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struct mtp_udp_data *data;
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struct llist_head entry;
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/* snmp for controlling the link */
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struct snmp_mtp_session *session;
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};
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struct bsc_data {
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int pcap_fd;
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int udp_reset_timeout;
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/* udp code */
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struct mtp_udp_data udp_data;
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int udp_src_port;
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int udp_port;
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char *udp_ip;
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int udp_nr_links;
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int m2ua_src_port;
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/* MTP Links */
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struct llist_head linksets;
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int num_linksets;
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/* inject */
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int allow_inject;
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struct osmo_fd inject_fd;
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/* m2ua code */
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struct sctp_m2ua_transport *m2ua_trans;
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/* MSCs */
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struct llist_head mscs;
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int num_mscs;
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/* Simple send only mgcp agent */
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struct mgcp_callagent mgcp_agent;
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/* application */
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struct llist_head apps;
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int num_apps;
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};
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/* bsc related functions */
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void release_bsc_resources(struct msc_connection *fw);
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void mtp_linkset_down(struct mtp_link_set *);
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void mtp_linkset_up(struct mtp_link_set *);
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/* connection tracking and action */
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/* udp init */
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struct mtp_link_set *link_set_create(struct bsc_data *bsc);
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int link_global_init(struct mtp_udp_data *data);
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int link_global_bind(struct mtp_udp_data *data, int src_port);
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int link_udp_init(struct mtp_udp_link *data, char *dest_ip, int port);
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int link_init(struct bsc_data *bsc, struct mtp_link_set *set);
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int link_shutdown_all(struct mtp_link_set *);
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int link_reset_all(struct mtp_link_set *);
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int link_clear_all(struct mtp_link_set *);
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/* pcap */
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enum {
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NET_IN,
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NET_OUT,
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};
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int mtp_handle_pcap(struct mtp_link *, int dir, const uint8_t *data, int length);
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struct bsc_data *bsc_data_create();
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struct mtp_udp_link *mtp_udp_link_init(struct mtp_link *link);
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#endif
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