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* IMPORTANT: READ BEFORE DOWNLOADING, COPYING, INSTALLING OR USING.
* By downloading, copying, installing or using the software you agree
* to this license. If you do not agree to this license, do not
* download, install, 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
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* SUCH DAMAGE.
*/
#ifndef _PARAMETERS_H_
#define _PARAMETERS_H_
typedef struct MD5Context MD5Context_t;
#define ISCSI_PARAM_MAX_LEN 256
#define ISCSI_PARAM_KEY_LEN 64
/* Parameter Type */
#define ISCSI_PARAM_TYPE_DECLARATIVE 1
#define ISCSI_PARAM_TYPE_DECLARE_MULTI 2 /* for TargetName and
* TargetAddress */
#define ISCSI_PARAM_TYPE_NUMERICAL 3
#define ISCSI_PARAM_TYPE_NUMERICAL_Z 4 /* zero represents no limit */
#define ISCSI_PARAM_TYPE_BINARY_OR 5
#define ISCSI_PARAM_TYPE_BINARY_AND 6
#define ISCSI_PARAM_TYPE_LIST 7
#define ISCSI_CHAP_DATA_LENGTH 16
#define ISCSI_CHAP_STRING_LENGTH 256
#define ISCSI_PARAM_STATUS_AUTH_FAILED -2
#define ISCSI_PARAM_STATUS_FAILED -1
/* types of authentication which the initiator can select */
enum {
AuthNone,
AuthCHAP,
AuthKerberos,
AuthSRP
};
/* types of digest which the initiator can select */
enum {
DigestNone = 0x0,
DigestHeader = 0x01,
DigestData = 0x02
/* these are bit masks, extend accordingly */
};
typedef struct iscsi_parameter_item_t {
char value[ISCSI_PARAM_MAX_LEN];
struct iscsi_parameter_item_t *next;
} iscsi_parameter_value_t;
/* this struct defines the credentials a user has */
typedef struct iscsi_cred_t {
char *user; /* user's name */
char *auth_type; /* preferred authentication type */
char *shared_secret; /* the shared secret */
} iscsi_cred_t;
/*
* Structure for storing negotiated parameters that are frequently accessed
* on an active session
*/
typedef struct iscsi_sess_param_t {
uint32_t max_burst_length;
uint32_t first_burst_length;
uint32_t max_dataseg_len;
iscsi_cred_t cred;
uint8_t initial_r2t;
uint8_t immediate_data;
uint8_t header_digest;
uint8_t data_digest;
uint8_t auth_type;
uint8_t mutual_auth;
uint8_t digest_wanted;
} iscsi_sess_param_t;
typedef struct iscsi_parameter_t {
char key[ISCSI_PARAM_KEY_LEN]; /* key */
int type; /* type of parameter */
char valid[ISCSI_PARAM_MAX_LEN]; /* list of valid values */
char dflt[ISCSI_PARAM_MAX_LEN]; /* default value */
iscsi_parameter_value_t *value_l; /* value list */
char offer_rx[ISCSI_PARAM_MAX_LEN]; /* outgoing offer */
char offer_tx[ISCSI_PARAM_MAX_LEN]; /* incoming offer */
char answer_tx[ISCSI_PARAM_MAX_LEN]; /* outgoing answer */
char answer_rx[ISCSI_PARAM_MAX_LEN]; /* incoming answer */
char negotiated[ISCSI_PARAM_MAX_LEN]; /* negotiated value */
int tx_offer; /* sent offer */
int rx_offer; /* received offer */
int tx_answer; /* sent answer */
int rx_answer; /* received answer */
int reset; /* reset value_l */
struct iscsi_parameter_t *next;
} iscsi_parameter_t;
int param_list_add(iscsi_parameter_t ** , int , const char *, const char *, const char *);
int param_list_print(iscsi_parameter_t * );
int param_list_destroy(iscsi_parameter_t * );
int param_text_add(iscsi_parameter_t *, const char *, const char *, char *, int *, int, int );
int param_text_parse(iscsi_parameter_t *, iscsi_cred_t *, char *, int , char *, int *, int, int);
int param_text_print(char *, uint32_t );
int param_num_vals(iscsi_parameter_t * , char *);
int param_val_reset(iscsi_parameter_t * , const char *);
char *param_val(iscsi_parameter_t * , const char *);
char *param_val_which(iscsi_parameter_t * , const char *, int );
char *param_offer(iscsi_parameter_t * , char *);
char *param_answer(iscsi_parameter_t * , char *);
iscsi_parameter_t *param_get(iscsi_parameter_t * , const char *);
int driver_atoi(const char *);
int param_atoi(iscsi_parameter_t * , const char *);
int param_equiv(iscsi_parameter_t * , const char *, const char *);
int param_commit(iscsi_parameter_t * );
void set_session_parameters(iscsi_parameter_t * , iscsi_sess_param_t * );
/*
* Macros
*/
#define PARAM_LIST_DESTROY(LIST, ELSE) \
if (param_list_destroy(LIST)!=0) { \
iscsi_err(__FILE__, __LINE__, "param_list_destroy() failed\n"); \
ELSE; \
}
#define PARAM_LIST_ADD(LIST, TYPE, KEY, DFLT, VALID, ELSE) \
if (param_list_add(LIST, TYPE, KEY, DFLT, VALID)!=0) { \
iscsi_err(__FILE__, __LINE__, "param_list_add() failed\n"); \
ELSE; \
}
#define PARAM_TEXT_ADD(LIST, KEY, VAL, TEXT, LEN, SIZE, OFFER, ELSE ) \
if (param_text_add(LIST, KEY, VAL, TEXT, LEN, SIZE, OFFER)!=0) { \
iscsi_err(__FILE__, __LINE__, "param_text_add() failed\n"); \
ELSE; \
}
#define PARAM_TEXT_PARSE(LIST, CRED, TEXT, LEN, TEXT_OUT, LEN_OUT, SIZE, OFFER, ELSE ) \
if (param_text_parse(LIST, CRED, TEXT, LEN, TEXT_OUT, LEN_OUT, SIZE, OFFER)!=0) { \
iscsi_err(__FILE__, __LINE__, "param_text_parse_offer() failed\n"); \
ELSE; \
}
#endif