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 * IMPORTANT: READ BEFORE DOWNLOADING, COPYING, INSTALLING OR USING. By downloading, copying, installing or
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 * copy or use the software.
 *
 * Intel License Agreement
 *
 * Copyright (c) 2000, Intel Corporation
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without modification, are permitted provided that
 * the following conditions are met:
 *
 * -Redistributions of source code must retain the above copyright notice, this list of conditions and the
 *  following disclaimer.
 *
 * -Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the
 *  following disclaimer in the documentation and/or other materials provided with the distribution.
 *
 * -The name of Intel Corporation may not be used to endorse or promote products derived from this software
 *  without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED
 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
 * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL INTEL OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
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 */

#ifndef _TARGET_H_
#define _TARGET_H_

#include "iscsi.h"
#include "util.h"
#include "parameters.h"
#include "storage.h"

/* Default configuration */

#define DEFAULT_TARGET_MAX_SESSIONS 4	/* n+1 */
#define DEFAULT_TARGET_NUM_LUNS     1
#define DEFAULT_TARGET_BLOCK_LEN    512
#define DEFAULT_TARGET_NUM_BLOCKS   204800
#define DEFAULT_TARGET_NAME         "iqn.1994-04.org.netbsd.iscsi-target"
#define DEFAULT_TARGET_QUEUE_DEPTH  8
#define DEFAULT_TARGET_TCQ          0

enum {
	MAX_TGT_NAME_SIZE = 512,
	MAX_INITIATOR_ADDRESS_SIZE = 256,

	ISCSI_IPv4 = 4,
	ISCSI_IPv6 = 6
};

/* global variables, moved from target.c */
typedef struct globals_t {
	char		targetname[MAX_TGT_NAME_SIZE];		/* name of target */
	uint16_t	port;					/* target port */
	iscsi_socket_t	sock;					/* socket on which it's listening */
	int      	state;					/* current state of target */
	int		listener_pid;				/* PID on which it's listening */
	volatile int    listener_listening;			/* whether a listener is listening */
	char     	targetaddress[MAX_TGT_NAME_SIZE];	/* iSCSI TargetAddress set after iscsi_sock_accept() */
	targv_t		*tv;					/* array of target devices */
	int		address_family;				/* IP address family */
} globals_t;

typedef struct target_session_t {
	int             id;
	int             d;
	iscsi_socket_t  sock;
	uint16_t        cid;
	uint32_t        StatSN;
	uint32_t        ExpCmdSN;
	uint32_t        MaxCmdSN;
	uint8_t        *buff;
	int             UsePhaseCollapsedRead;
	int             IsFullFeature;
	int             IsLoggedIn;
	int             LoginStarted;
	uint64_t        isid;
	int             tsih;
	globals_t	*globals;
	iscsi_worker_t  worker;
	iscsi_parameter_t *params;
	iscsi_sess_param_t sess_params;
	char		initiator[MAX_INITIATOR_ADDRESS_SIZE];
	int		address_family;
}               target_session_t;

typedef struct target_cmd_t {
	iscsi_scsi_cmd_args_t *scsi_cmd;
	int             (*callback) (void *);
	void           *callback_arg;
}               target_cmd_t;

int             target_init(globals_t *, targv_t *, char *);
int             target_shutdown(globals_t *);
int             target_listen(globals_t *);
int             target_transfer_data(target_session_t *, iscsi_scsi_cmd_args_t *, struct iovec *, int);

#endif				/* _TARGET_H_ */