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[S390] zcrypt secure key cryptography extension.

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Allow the user space to send extended cprb messages directly to the
PCIXCC / CEX2C cards. This allows the CCA library to construct special
crypto requests that use "secure" keys that are stored on the card.

Signed-off-by: Ralph Wuerthner <[email protected]>
Signed-off-by: Martin Schwidefsky <[email protected]>
This commit is contained in:
Ralph Wuerthner 2006-09-20 15:58:36 +02:00 • committed by Martin Schwidefsky
commit 5432114baf
14 changed files with 452 additions and 26 deletions
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80
include/asm-s390/zcrypt.h
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@ -1,7 +1,7 @@
/*
* include/asm-s390/zcrypt.h
*
* zcrypt 2.0.0 (user-visible header)
* zcrypt 2.1.0 (user-visible header)
*
* Copyright (C) 2001, 2006 IBM Corporation
* Author(s): Robert Burroughs
@ -79,6 +79,83 @@ struct ica_rsa_modexpo_crt {
char __user * u_mult_inv;
};
/**
* CPRBX
* Note that all shorts and ints are big-endian.
* All pointer fields are 16 bytes long, and mean nothing.
*
* A request CPRB is followed by a request_parameter_block.
*
* The request (or reply) parameter block is organized thus:
* function code
* VUD block
* key block
*/
struct ica_CPRBX {
unsigned short cprb_len; /* CPRB length 220 */
unsigned char cprb_ver_id; /* CPRB version id. 0x02 */
unsigned char pad_000[3]; /* Alignment pad bytes */
unsigned char func_id[2]; /* function id 0x5432 */
unsigned char cprb_flags[4]; /* Flags */
unsigned int req_parml; /* request parameter buffer len */
unsigned int req_datal; /* request data buffer */
unsigned int rpl_msgbl; /* reply message block length */
unsigned int rpld_parml; /* replied parameter block len */
unsigned int rpl_datal; /* reply data block len */
unsigned int rpld_datal; /* replied data block len */
unsigned int req_extbl; /* request extension block len */
unsigned char pad_001[4]; /* reserved */
unsigned int rpld_extbl; /* replied extension block len */
unsigned char padx000[16 - sizeof (char *)];
unsigned char * req_parmb; /* request parm block 'address' */
unsigned char padx001[16 - sizeof (char *)];
unsigned char * req_datab; /* request data block 'address' */
unsigned char padx002[16 - sizeof (char *)];
unsigned char * rpl_parmb; /* reply parm block 'address' */
unsigned char padx003[16 - sizeof (char *)];
unsigned char * rpl_datab; /* reply data block 'address' */
unsigned char padx004[16 - sizeof (char *)];
unsigned char * req_extb; /* request extension block 'addr'*/
unsigned char padx005[16 - sizeof (char *)];
unsigned char * rpl_extb; /* reply extension block 'addres'*/
unsigned short ccp_rtcode; /* server return code */
unsigned short ccp_rscode; /* server reason code */
unsigned int mac_data_len; /* Mac Data Length */
unsigned char logon_id[8]; /* Logon Identifier */
unsigned char mac_value[8]; /* Mac Value */
unsigned char mac_content_flgs;/* Mac content flag byte */
unsigned char pad_002; /* Alignment */
unsigned short domain; /* Domain */
unsigned char usage_domain[4];/* Usage domain */
unsigned char cntrl_domain[4];/* Control domain */
unsigned char S390enf_mask[4];/* S/390 enforcement mask */
unsigned char pad_004[36]; /* reserved */
};
/**
* xcRB
*/
struct ica_xcRB {
unsigned short agent_ID;
unsigned int user_defined;
unsigned short request_ID;
unsigned int request_control_blk_length;
unsigned char padding1[16 - sizeof (char *)];
char __user * request_control_blk_addr;
unsigned int request_data_length;
char padding2[16 - sizeof (char *)];
char __user * request_data_address;
unsigned int reply_control_blk_length;
char padding3[16 - sizeof (char *)];
char __user * reply_control_blk_addr;
unsigned int reply_data_length;
char padding4[16 - sizeof (char *)];
char __user * reply_data_addr;
unsigned short priority_window;
unsigned int status;
} __attribute__((packed));
#define AUTOSELECT ((unsigned int)0xFFFFFFFF)
#define ZCRYPT_IOCTL_MAGIC 'z'
/**
@ -187,6 +264,7 @@ struct ica_rsa_modexpo_crt {
*/
#define ICARSAMODEXPO _IOC(_IOC_READ|_IOC_WRITE, ZCRYPT_IOCTL_MAGIC, 0x05, 0)
#define ICARSACRT _IOC(_IOC_READ|_IOC_WRITE, ZCRYPT_IOCTL_MAGIC, 0x06, 0)
#define ZSECSENDCPRB _IOC(_IOC_READ|_IOC_WRITE, ZCRYPT_IOCTL_MAGIC, 0x81, 0)
/* New status calls */
#define Z90STAT_TOTALCOUNT _IOR(ZCRYPT_IOCTL_MAGIC, 0x40, int)