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      1 /* $NetBSD: iscsi.h,v 1.4 2011/12/14 07:20:31 agc Exp $ */
      2 
      3 /*-
      4  * Copyright (c) 2009 The NetBSD Foundation, Inc.
      5  * All rights reserved.
      6  *
      7  * This code is derived from software contributed to The NetBSD Foundation
      8  * by Alistair Crooks (agc (at) netbsd.org)
      9  *
     10  * Redistribution and use in source and binary forms, with or without
     11  * modification, are permitted provided that the following conditions
     12  * are met:
     13  * 1. Redistributions of source code must retain the above copyright
     14  *    notice, this list of conditions and the following disclaimer.
     15  * 2. Redistributions in binary form must reproduce the above copyright
     16  *    notice, this list of conditions and the following disclaimer in the
     17  *    documentation and/or other materials provided with the distribution.
     18  *
     19  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     20  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     21  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     22  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     23  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     24  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     25  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     26  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     27  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     28  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     29  * POSSIBILITY OF SUCH DAMAGE.
     30  */
     31 #ifndef ISCSI_H_
     32 #define ISCSI_H_	1
     33 
     34 #include <inttypes.h>
     35 
     36 enum {
     37 	ISCSI_MAXSOCK = 8
     38 };
     39 
     40 /* variables which relate to an embedded iSCSI target */
     41 typedef struct iscsi_target_t {
     42 	int		sockc;			/* sockets where listening */
     43 	int		sockv[ISCSI_MAXSOCK];	/* listening sockets */
     44 	int		famv[ISCSI_MAXSOCK];	/* address families */
     45 	int      	state;			/* current state of target */
     46 	int		listener_pid;		/* PID */
     47 	int		main_pid;		/* main IQN PID */
     48 	volatile int    listener_listening;	/* a listener is listening? */
     49 	void	       *lunv;			/* array of target devices */
     50 	void	       *devv;			/* array of devices */
     51 	void	       *extentv;		/* array of extents */
     52 	uint32_t	last_tsih;		/* the last TSIH used */
     53 	uint32_t	c;			/* # of vars */
     54 	uint32_t	size;			/* size of var array */
     55 	char	      **name;			/* variable names */
     56 	char	      **value;			/* variable values */
     57 } iscsi_target_t;
     58 
     59 /* target functions */
     60 int iscsi_target_set_defaults(iscsi_target_t *);
     61 int iscsi_target_start(iscsi_target_t *);
     62 int iscsi_target_listen(iscsi_target_t *);
     63 int iscsi_target_shutdown(iscsi_target_t *);
     64 void iscsi_target_write_pidfile(const char *);
     65 int iscsi_target_setvar(iscsi_target_t *, const char *, const char *);
     66 char *iscsi_target_getvar(iscsi_target_t *, const char *);
     67 int iscsi_target_reconfigure(iscsi_target_t *);
     68 
     69 typedef struct iscsi_initiator_t {
     70 	uint32_t	c;			/* # of vars */
     71 	uint32_t	size;			/* size of var array */
     72 	char	      **name;			/* variable names */
     73 	char	      **value;			/* variable values */
     74 } iscsi_initiator_t;
     75 
     76 int iscsi_initiator_set_defaults(iscsi_initiator_t *);
     77 int iscsi_initiator_start(iscsi_initiator_t *);
     78 int iscsi_initiator_info(char *, int, int);
     79 int iscsi_initiator_shutdown(void);
     80 int iscsi_initiator_discover(char *, uint64_t, int);
     81 
     82 int iscsi_initiator_setvar(iscsi_initiator_t *, const char *, const char *);
     83 char *iscsi_initiator_getvar(iscsi_initiator_t *, const char *);
     84 
     85 #endif
     86