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/* Everything related to the BSC connection */
/*
* (C) 2010-2011 by Holger Hans Peter Freyther <zecke@selfish.org>
* (C) 2010-2011 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/>.
*
*/
#ifndef BSC_DATA_H
#define BSC_DATA_H
#include "mtp_data.h"
#include <osmocom/core/linuxlist.h>
#include <osmocom/core/select.h>
#include <osmocom/core/timer.h>
#include <osmocom/core/write_queue.h>
#include <netinet/in.h>
#include <arpa/inet.h>
struct bsc_data;
struct snmp_mtp_session;
struct msc_connection;
struct mtp_m2ua_transport;
struct mtp_udp_data {
struct osmo_wqueue write_queue;
struct osmo_timer_list snmp_poll;
struct llist_head links;
};
struct mtp_udp_link {
/* subclass */
struct mtp_link *base;
/* UDP specific stuff */
struct bsc_data *bsc;
int link_index;
int reset_timeout;
char *dest;
struct sockaddr_in remote;
struct mtp_udp_data *data;
struct llist_head entry;
/* snmp for controlling the link */
struct snmp_mtp_session *session;
};
struct bsc_data {
int pcap_fd;
int udp_reset_timeout;
/* udp code */
struct mtp_udp_data udp_data;
int udp_src_port;
int udp_port;
char *udp_ip;
int udp_nr_links;
int m2ua_src_port;
/* MTP Links */
struct llist_head linksets;
int num_linksets;
/* inject */
int allow_inject;
struct osmo_fd inject_fd;
/* m2ua code */
struct sctp_m2ua_transport *m2ua_trans;
/* MSCs */
struct llist_head mscs;
int num_mscs;
/* application */
struct llist_head apps;
int num_apps;
};
/* bsc related functions */
void release_bsc_resources(struct msc_connection *fw);
void mtp_linkset_down(struct mtp_link_set *);
void mtp_linkset_up(struct mtp_link_set *);
/* connection tracking and action */
/* udp init */
struct mtp_link_set *link_set_create(struct bsc_data *bsc);
int link_global_init(struct mtp_udp_data *data);
int link_global_bind(struct mtp_udp_data *data, int src_port);
int link_udp_init(struct mtp_udp_link *data, char *dest_ip, int port);
int link_init(struct bsc_data *bsc, struct mtp_link_set *set);
int link_shutdown_all(struct mtp_link_set *);
int link_reset_all(struct mtp_link_set *);
int link_clear_all(struct mtp_link_set *);
/* pcap */
enum {
NET_IN,
NET_OUT,
};
int mtp_handle_pcap(struct mtp_link *, int dir, const uint8_t *data, int length);
struct bsc_data *bsc_data_create();
struct mtp_udp_link *mtp_udp_link_init(struct mtp_link *link);
#endif
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