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Nicholas Bellingere48354c2011-07-23 06:43:04 +00001#ifndef _ISCSI_CHAP_H_
2#define _ISCSI_CHAP_H_
3
4#define CHAP_DIGEST_MD5 5
5#define CHAP_DIGEST_SHA 6
6
7#define CHAP_CHALLENGE_LENGTH 16
8#define CHAP_CHALLENGE_STR_LEN 4096
9#define MAX_RESPONSE_LENGTH 64 /* sufficient for MD5 */
10#define MAX_CHAP_N_SIZE 512
11
12#define MD5_SIGNATURE_SIZE 16 /* 16 bytes in a MD5 message digest */
13
14#define CHAP_STAGE_CLIENT_A 1
15#define CHAP_STAGE_SERVER_AIC 2
16#define CHAP_STAGE_CLIENT_NR 3
17#define CHAP_STAGE_CLIENT_NRIC 4
18#define CHAP_STAGE_SERVER_NR 5
19
20extern u32 chap_main_loop(struct iscsi_conn *, struct iscsi_node_auth *, char *, char *,
21 int *, int *);
22
23struct iscsi_chap {
24 unsigned char digest_type;
25 unsigned char id;
26 unsigned char challenge[CHAP_CHALLENGE_LENGTH];
27 unsigned int authenticate_target;
28 unsigned int chap_state;
29} ____cacheline_aligned;
30
31#endif /*** _ISCSI_CHAP_H_ ***/