diff options
Diffstat (limited to 'drivers/s390/crypto/zcrypt_cex2a.h')
| -rw-r--r-- | drivers/s390/crypto/zcrypt_cex2a.h | 134 |
1 files changed, 134 insertions, 0 deletions
diff --git a/drivers/s390/crypto/zcrypt_cex2a.h b/drivers/s390/crypto/zcrypt_cex2a.h new file mode 100644 index 000000000..7842214d9 --- /dev/null +++ b/drivers/s390/crypto/zcrypt_cex2a.h @@ -0,0 +1,134 @@ +/* SPDX-License-Identifier: GPL-2.0+ */ +/* + * Copyright IBM Corp. 2001, 2006 + * Author(s): Robert Burroughs + * Eric Rossman (edrossma@us.ibm.com) + * + * Hotplug & misc device support: Jochen Roehrig (roehrig@de.ibm.com) + * Major cleanup & driver split: Martin Schwidefsky <schwidefsky@de.ibm.com> + */ + +#ifndef _ZCRYPT_CEX2A_H_ +#define _ZCRYPT_CEX2A_H_ + +/** + * The type 50 message family is associated with CEXxA cards. + * + * The four members of the family are described below. + * + * Note that all unsigned char arrays are right-justified and left-padded + * with zeroes. + * + * Note that all reserved fields must be zeroes. + */ +struct type50_hdr { + unsigned char reserved1; + unsigned char msg_type_code; /* 0x50 */ + unsigned short msg_len; + unsigned char reserved2; + unsigned char ignored; + unsigned short reserved3; +} __packed; + +#define TYPE50_TYPE_CODE 0x50 + +#define TYPE50_MEB1_FMT 0x0001 +#define TYPE50_MEB2_FMT 0x0002 +#define TYPE50_MEB3_FMT 0x0003 +#define TYPE50_CRB1_FMT 0x0011 +#define TYPE50_CRB2_FMT 0x0012 +#define TYPE50_CRB3_FMT 0x0013 + +/* Mod-Exp, with a small modulus */ +struct type50_meb1_msg { + struct type50_hdr header; + unsigned short keyblock_type; /* 0x0001 */ + unsigned char reserved[6]; + unsigned char exponent[128]; + unsigned char modulus[128]; + unsigned char message[128]; +} __packed; + +/* Mod-Exp, with a large modulus */ +struct type50_meb2_msg { + struct type50_hdr header; + unsigned short keyblock_type; /* 0x0002 */ + unsigned char reserved[6]; + unsigned char exponent[256]; + unsigned char modulus[256]; + unsigned char message[256]; +} __packed; + +/* Mod-Exp, with a larger modulus */ +struct type50_meb3_msg { + struct type50_hdr header; + unsigned short keyblock_type; /* 0x0003 */ + unsigned char reserved[6]; + unsigned char exponent[512]; + unsigned char modulus[512]; + unsigned char message[512]; +} __packed; + +/* CRT, with a small modulus */ +struct type50_crb1_msg { + struct type50_hdr header; + unsigned short keyblock_type; /* 0x0011 */ + unsigned char reserved[6]; + unsigned char p[64]; + unsigned char q[64]; + unsigned char dp[64]; + unsigned char dq[64]; + unsigned char u[64]; + unsigned char message[128]; +} __packed; + +/* CRT, with a large modulus */ +struct type50_crb2_msg { + struct type50_hdr header; + unsigned short keyblock_type; /* 0x0012 */ + unsigned char reserved[6]; + unsigned char p[128]; + unsigned char q[128]; + unsigned char dp[128]; + unsigned char dq[128]; + unsigned char u[128]; + unsigned char message[256]; +} __packed; + +/* CRT, with a larger modulus */ +struct type50_crb3_msg { + struct type50_hdr header; + unsigned short keyblock_type; /* 0x0013 */ + unsigned char reserved[6]; + unsigned char p[256]; + unsigned char q[256]; + unsigned char dp[256]; + unsigned char dq[256]; + unsigned char u[256]; + unsigned char message[512]; +} __packed; + +/** + * The type 80 response family is associated with a CEXxA cards. + * + * Note that all unsigned char arrays are right-justified and left-padded + * with zeroes. + * + * Note that all reserved fields must be zeroes. + */ + +#define TYPE80_RSP_CODE 0x80 + +struct type80_hdr { + unsigned char reserved1; + unsigned char type; /* 0x80 */ + unsigned short len; + unsigned char code; /* 0x00 */ + unsigned char reserved2[3]; + unsigned char reserved3[8]; +} __packed; + +int zcrypt_cex2a_init(void); +void zcrypt_cex2a_exit(void); + +#endif /* _ZCRYPT_CEX2A_H_ */ |