/*
 *
 * @APPLE_LICENSE_HEADER_START@
 *
 * Copyright (c) 1999-2001 Apple Computer, Inc.  All Rights Reserved. The
 * contents of this file constitute Original Code as defined in and are
 * subject to the Apple Public Source License Version 1.2 (the 'License').
 * You may not use this file except in compliance with the License.  Please
 * obtain a copy of the License at http://www.apple.com/publicsource and
 * read it before using this file.
 *
 * This Original Code and all software distributed under the License are
 * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, FITNESS
 * FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.  Please
 * see the License for the specific language governing rights and
 * limitations under the License.
 *
 *
 * @APPLE_LICENSE_HEADER_END@
 *
 */
 /*
 * proxy.h
 *
 * 
 */

#ifndef __PROXY_H__
#define __PROXY_H__

#include "shared_udp.h"
/**********************************************/
enum {
	stIdle,
	stError,

	stRecvClientCommand,
	stWaitingForIPAddress,
	stParseClientCommand,
	stSendClientResponse,
	stServerTransactionSend,
	stServerTransactionRecv,
	stClientShutdown,
	stServerShutdown,
	stBadServerName,
	stCantConnectToServer,
	stDone
};		// rtsp session states

enum {
	ttNone,
	ttDescribe,
	ttSetup,
	ttPlay,
	ttPause,
	ttStop,
	ttTeardown,
	ttOptions,
	ttAnnounce,
	ttRedirect,
	ttGetParameter,
	ttSetParameter
};		// rtsp command types

enum {
	kPermissionDenied,
	kTooManyUsers,
	kServerNotFound,
	kUnknownError
};		// refusal type

typedef struct {
	char	*cmd;
	int	type;
} t_cmd_map;

#define MAX_TRACKS	32

typedef struct {
	int		ID;
	shok		*RTP_S2P;
	shok		*RTCP_S2P;
	shok		*RTP_P2C;
	shok		*RTCP_P2C;
	int		ClientRTPPort;
	int		ServerRTPPort;
	trans_pb	RTP_S2C_tpb;
	trans_pb	RTCP_S2C_tpb;
	trans_pb	RTCP_C2S_tpb;
} track_info;

/* This size will fit nicely in a standard ethernet frame */
#define RTSP_SESSION_BUF_SIZE	4096

typedef struct rtsp_session {
	struct rtsp_session *next;
	int		die;
	int		newSession;
	int		client_skt;
	int		client_ip;
	char		*server_address;
	int		server_skt;
	int		server_interface_addr;
	int		client_interface_addr;
	int		server_ip;
	int		server_port;
	int		server_skt_pending_connection;
	int		state;
	int		transaction_type;
	char		*sessionID;

	int		cur_trk;
	int		numTracks;
	track_info	trk[MAX_TRACKS];

	char		cinbuf[RTSP_SESSION_BUF_SIZE];
	int		amtInClientInBuffer;
	char		coutbuf[RTSP_SESSION_BUF_SIZE];
	int		amtInClientOutBuffer;
	char		sinbuf[RTSP_SESSION_BUF_SIZE];
	int		amtInServerInBuffer;
	char		soutbuf[RTSP_SESSION_BUF_SIZE];
	int		amtInServerOutBuffer;
	int		totalContentLength;
	int		haveParsedServerReplyHeaders;
	int 		contentLength;
	char*		responseBodyP;

	int		tempIP;
} rtsp_session;

typedef struct subnet_allow {
	struct subnet_allow *next;
	int		ip;
	int		range;
} subnet_allow;

typedef struct rtsp_listener {
	struct rtsp_listener *next;
	int		port;
	int		skt;
} rtsp_listener;

/**********************************************/
int service_listeners();
int service_sessions();

void add_rtsp_port_listener(int address,int port);
void cleanup_listeners(void);
void answer_new_connection(rtsp_listener *listener);
void add_session(rtsp_session *session);
void remove_session(rtsp_session *session);
rtsp_session *new_session(void);
void cleanup_sessions(void);
void cleanup_session(rtsp_session *session);
void service_session(rtsp_session *session);
void service_session_rtp(rtsp_session *session);
void read_config(void);
void add_allow_subnet(int ip, int range);
bool allow_ip(int ip);
void send_rtsp_error(int skt, int refusal);

#endif // __PROXY_H__

