03b521d4dc
reported by the ICL module in iscsid(8). This harmed performance and was just wrong. MFC after: 1 month
152 lines
4.7 KiB
C
152 lines
4.7 KiB
C
/*-
|
|
* Copyright (c) 2012 The FreeBSD Foundation
|
|
* All rights reserved.
|
|
*
|
|
* This software was developed by Edward Tomasz Napierala under sponsorship
|
|
* from the FreeBSD Foundation.
|
|
*
|
|
* 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.
|
|
*
|
|
* $FreeBSD$
|
|
*/
|
|
|
|
#ifndef ISCSID_H
|
|
#define ISCSID_H
|
|
|
|
#include <stdbool.h>
|
|
#include <stdint.h>
|
|
|
|
#include <iscsi_ioctl.h>
|
|
|
|
#define DEFAULT_PIDFILE "/var/run/iscsid.pid"
|
|
|
|
#define CONN_DIGEST_NONE 0
|
|
#define CONN_DIGEST_CRC32C 1
|
|
|
|
#define CONN_MUTUAL_CHALLENGE_LEN 1024
|
|
#define SOCKBUF_SIZE 1048576
|
|
#define MAX_BURST_LENGTH (256 * 1024)
|
|
#define FIRST_BURST_LENGTH (128 * 1024)
|
|
|
|
struct connection {
|
|
int conn_iscsi_fd;
|
|
int conn_socket;
|
|
unsigned int conn_session_id;
|
|
struct iscsi_session_conf conn_conf;
|
|
struct iscsi_session_limits conn_limits;
|
|
char conn_target_alias[ISCSI_ADDR_LEN];
|
|
uint8_t conn_isid[6];
|
|
uint16_t conn_tsih;
|
|
uint32_t conn_statsn;
|
|
int conn_header_digest;
|
|
int conn_data_digest;
|
|
bool conn_initial_r2t;
|
|
bool conn_immediate_data;
|
|
size_t conn_max_data_segment_length;
|
|
size_t conn_max_burst_length;
|
|
size_t conn_first_burst_length;
|
|
struct chap *conn_mutual_chap;
|
|
};
|
|
|
|
struct pdu {
|
|
struct connection *pdu_connection;
|
|
struct iscsi_bhs *pdu_bhs;
|
|
char *pdu_data;
|
|
size_t pdu_data_len;
|
|
};
|
|
|
|
#define KEYS_MAX 1024
|
|
|
|
struct keys {
|
|
char *keys_names[KEYS_MAX];
|
|
char *keys_values[KEYS_MAX];
|
|
char *keys_data;
|
|
size_t keys_data_len;
|
|
};
|
|
|
|
#define CHAP_CHALLENGE_LEN 1024
|
|
#define CHAP_DIGEST_LEN 16 /* Equal to MD5 digest size. */
|
|
|
|
struct chap {
|
|
unsigned char chap_id;
|
|
char chap_challenge[CHAP_CHALLENGE_LEN];
|
|
char chap_response[CHAP_DIGEST_LEN];
|
|
};
|
|
|
|
struct rchap {
|
|
char *rchap_secret;
|
|
unsigned char rchap_id;
|
|
void *rchap_challenge;
|
|
size_t rchap_challenge_len;
|
|
};
|
|
|
|
struct chap *chap_new(void);
|
|
char *chap_get_id(const struct chap *chap);
|
|
char *chap_get_challenge(const struct chap *chap);
|
|
int chap_receive(struct chap *chap, const char *response);
|
|
int chap_authenticate(struct chap *chap,
|
|
const char *secret);
|
|
void chap_delete(struct chap *chap);
|
|
|
|
struct rchap *rchap_new(const char *secret);
|
|
int rchap_receive(struct rchap *rchap,
|
|
const char *id, const char *challenge);
|
|
char *rchap_get_response(struct rchap *rchap);
|
|
void rchap_delete(struct rchap *rchap);
|
|
|
|
struct keys *keys_new(void);
|
|
void keys_delete(struct keys *key);
|
|
void keys_load(struct keys *keys, const struct pdu *pdu);
|
|
void keys_save(struct keys *keys, struct pdu *pdu);
|
|
const char *keys_find(struct keys *keys, const char *name);
|
|
void keys_add(struct keys *keys,
|
|
const char *name, const char *value);
|
|
void keys_add_int(struct keys *keys,
|
|
const char *name, int value);
|
|
|
|
struct pdu *pdu_new(struct connection *ic);
|
|
struct pdu *pdu_new_response(struct pdu *request);
|
|
void pdu_receive(struct pdu *request);
|
|
void pdu_send(struct pdu *response);
|
|
void pdu_delete(struct pdu *ip);
|
|
|
|
void login(struct connection *ic);
|
|
|
|
void discovery(struct connection *ic);
|
|
|
|
void log_init(int level);
|
|
void log_set_peer_name(const char *name);
|
|
void log_set_peer_addr(const char *addr);
|
|
void log_err(int, const char *, ...)
|
|
__dead2 __printflike(2, 3);
|
|
void log_errx(int, const char *, ...)
|
|
__dead2 __printflike(2, 3);
|
|
void log_warn(const char *, ...) __printflike(1, 2);
|
|
void log_warnx(const char *, ...) __printflike(1, 2);
|
|
void log_debugx(const char *, ...) __printflike(1, 2);
|
|
|
|
char *checked_strdup(const char *);
|
|
bool timed_out(void);
|
|
void fail(const struct connection *, const char *);
|
|
|
|
#endif /* !ISCSID_H */
|