1 /* SPDX-License-Identifier: GPL-2.0 */
5 #include <linux/types.h>
7 #define CHAP_DIGEST_UNKNOWN 0
8 #define CHAP_DIGEST_MD5 5
9 #define CHAP_DIGEST_SHA 6
11 #define CHAP_CHALLENGE_LENGTH 16
12 #define CHAP_CHALLENGE_STR_LEN 4096
13 #define MAX_RESPONSE_LENGTH 64 /* sufficient for MD5 */
14 #define MAX_CHAP_N_SIZE 512
16 #define MD5_SIGNATURE_SIZE 16 /* 16 bytes in a MD5 message digest */
18 #define CHAP_STAGE_CLIENT_A 1
19 #define CHAP_STAGE_SERVER_AIC 2
20 #define CHAP_STAGE_CLIENT_NR 3
21 #define CHAP_STAGE_CLIENT_NRIC 4
22 #define CHAP_STAGE_SERVER_NR 5
24 struct iscsi_node_auth;
27 extern u32 chap_main_loop(struct iscsi_conn *, struct iscsi_node_auth *, char *, char *,
31 unsigned char digest_type;
33 unsigned char challenge[CHAP_CHALLENGE_LENGTH];
34 unsigned int authenticate_target;
35 unsigned int chap_state;
36 } ____cacheline_aligned;
38 #endif /*** _ISCSI_CHAP_H_ ***/