/*-
* Copyright (c) 2005-2010 Daniel Braniss <danny@cs.huji.ac.il>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. 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.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* $FreeBSD$
*/
/*
| $Id: iscontrol.h,v 2.3 2007/04/27 08:36:49 danny Exp danny $
*/
#ifdef DEBUG
int vflag;
# define debug(level, fmt, args...) do {if (level <= vflag) printf("%s: " fmt "\n", __func__ , ##args);} while(0)
# define debug_called(level) do {if (level <= vflag) printf("%s: called\n", __func__);} while(0)
#else
# define debug(level, fmt, args...)
# define debug_called(level)
#endif // DEBUG
#define xdebug(fmt, args...) printf("%s: " fmt "\n", __func__ , ##args)
#define BIT(n) (1 <<(n))
#define MAXREDIRECTS 2
typedef int auth_t(void *sess);
typedef struct {
char *address;
int port;
int pgt;
} target_t;
typedef struct isess {
int flags;
#define SESS_CONNECTED BIT(0)
#define SESS_DISCONNECT BIT(1)
#define SESS_LOGGEDIN BIT(2)
#define SESS_RECONNECT BIT(3)
#define SESS_REDIRECT BIT(4)
#define SESS_NEGODONE BIT(10) // XXX: kludge
#define SESS_FULLFEATURE BIT(29)
#define SESS_INITIALLOGIN1 BIT(30)
#define SESS_INITIALLOGIN BIT(31)
isc_opt_t *op; // operational values
target_t target; // the Original target address
int fd; // the session fd
int soc; // the socket
iscsi_cam_t cam;
struct cam_device *camdev;
time_t open_time;
int redirect_cnt;
time_t redirect_time;
int reconnect_cnt;
int reconnect_cnt1;
time_t reconnect_time;
char isid[6+1];
int csg; // current stage
int nsg; // next stage
// Phases/Stages
#define SN_PHASE 0 // Security Negotiation
#define LON_PHASE 1 // Login Operational Negotiation
#define FF_PHASE 3 // FuLL-Feature
uint tsih;
sn_t sn;
} isess_t;
typedef struct token {
char *name;
int val;
} token_t;
typedef enum {
NONE = 0,
KRB5,
SPKM1,
SPKM2,
SRP,
CHAP
} authm_t;
extern token_t AuthMethods[];
extern token_t DigestMethods[];
typedef enum {
SET,
GET
} oper_t;
typedef enum {
U_PR, // private
U_IO, // Initialize Only -- during login
U_LO, // Leading Only -- when TSIH is zero
U_FFPO, // Full Feature Phase Only
U_ALL // in any phase
} usage_t;
typedef enum {
S_PR,
S_CO, // Connect only
S_SW // Session Wide
} scope_t;
typedef void keyfun_t(isess_t *, oper_t);
typedef struct {
usage_t usage;
scope_t scope;
char *name;
int tokenID;
} textkey_t;
typedef int handler_t(isess_t *sess, pdu_t *pp);
int authenticateLogin(isess_t *sess);
int fsm(isc_opt_t *op);
int sendPDU(isess_t *sess, pdu_t *pp, handler_t *hdlr);
int addText(pdu_t *pp, char *fmt, ...);
void freePDU(pdu_t *pp);
int xmitpdu(isess_t *sess, pdu_t *pp);
int recvpdu(isess_t *sess, pdu_t *pp);
int lookup(token_t *tbl, char *m);
int vflag;
char *iscsidev;
void parseArgs(int nargs, char **args, isc_opt_t *op);
void parseConfig(FILE *fd, char *key, isc_opt_t *op);
char *chapDigest(char *ap, char id, char *cp, char *chapSecret);
char *genChapChallenge(char *encoding, uint len);
int str2bin(char *str, char **rsp);
char *bin2str(char *fmt, unsigned char *md, int blen);
int negotiateOPV(isess_t *sess);
int setOptions(isess_t *sess, int flag);
int loginPhase(isess_t *sess);
