1#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_ ***/ 32