/*
 * osmo-pcap-server code
 *
 * (C) 2011 by Holger Hans Peter Freyther <zecke@selfish.org>
 * (C) 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 OSMO_PCAP_SERVER_H
#define OSMO_PCAP_SERVER_H

#include "wireformat.h"

#include <osmocom/core/select.h>
#include <osmocom/core/linuxlist.h>

#include <sys/socket.h>
#include <netinet/in.h>
#include <arpa/inet.h>

#include <pcap.h>

#include <time.h>

struct osmo_pcap_server;


#define STATE_INITIAL	0
#define STATE_DATA	1

#define SERVER_MAX_DATA_SIZE 10000

struct osmo_pcap_conn {
	/* list of connections */
	struct llist_head entry;
	struct osmo_pcap_server *server;

	/* name */
	char *name;
	char *remote_host;
	struct in_addr remote_addr;

	/* Remote connection */
	struct osmo_fd rem_fd;
	int local_fd;

	/* pcap stuff */
	struct pcap_file_header file_hdr;

	/* last time */
	struct tm last_write;

	/* read buffering */
	int state;
	int pend;
	int reopen;
	char buf[SERVER_MAX_DATA_SIZE + sizeof(struct osmo_pcap_data)];
	struct osmo_pcap_data *data;
};

struct osmo_pcap_server {
	struct llist_head conn;

	int port;
	char *addr;
	struct osmo_fd listen_fd;

	char *base_path;
	off_t max_size;
};

extern struct osmo_pcap_server *pcap_server;

void osmo_pcap_server_reopen(struct osmo_pcap_server *server);
int osmo_pcap_server_listen(struct osmo_pcap_server *server);
struct osmo_pcap_conn *osmo_pcap_server_find(struct osmo_pcap_server *ser,
					     const char *name);
void osmo_pcap_server_delete(struct osmo_pcap_conn *conn);
void vty_server_init(struct osmo_pcap_server *server);

#endif