drivers/target/iscsi/iscsi_target_auth.h

   1 #ifndef _ISCSI_CHAP_H_
   2 #define _ISCSI_CHAP_H_
   3
   4 #define CHAP_DIGEST_UNKNOWN     0
   5 #define CHAP_DIGEST_MD5         5
   6 #define CHAP_DIGEST_SHA         6
   7
   8 #define CHAP_CHALLENGE_LENGTH   16
   9 #define CHAP_CHALLENGE_STR_LEN  4096
  10 #define MAX_RESPONSE_LENGTH     64      /* sufficient for MD5 */
  11 #define MAX_CHAP_N_SIZE         512
  12
  13 #define MD5_SIGNATURE_SIZE      16      /* 16 bytes in a MD5 message digest */
  14
  15 #define CHAP_STAGE_CLIENT_A     1
  16 #define CHAP_STAGE_SERVER_AIC   2
  17 #define CHAP_STAGE_CLIENT_NR    3
  18 #define CHAP_STAGE_CLIENT_NRIC  4
  19 #define CHAP_STAGE_SERVER_NR    5
  20
  21 extern u32 chap_main_loop(struct iscsi_conn *, struct iscsi_node_auth *, char *, char *,
  22                                 int *, int *);
  23
  24 struct iscsi_chap {
  25         unsigned char   digest_type;
  26         unsigned char   id;
  27         unsigned char   challenge[CHAP_CHALLENGE_LENGTH];
  28         unsigned int    authenticate_target;
  29         unsigned int    chap_state;
  30 } ____cacheline_aligned;
  31
  32 #endif   /*** _ISCSI_CHAP_H_ ***/