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- /* SPDX-License-Identifier: GPL-2.0+ */
- /*
- * Copyright IBM Corp. 2001, 2012
- * 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>
- * MSGTYPE restruct: Holger Dengler <hd@linux.vnet.ibm.com>
- */
- #ifndef _ZCRYPT_MSGTYPE6_H_
- #define _ZCRYPT_MSGTYPE6_H_
- #include <asm/zcrypt.h>
- #define MSGTYPE06_NAME "zcrypt_msgtype6"
- #define MSGTYPE06_VARIANT_DEFAULT 0
- #define MSGTYPE06_VARIANT_NORNG 1
- #define MSGTYPE06_VARIANT_EP11 2
- #define MSGTYPE06_MAX_MSG_SIZE (12*1024)
- /**
- * The type 6 message family is associated with CEXxC/CEXxP cards.
- *
- * It contains a message header followed by a CPRB, both of which
- * are described below.
- *
- * Note that all reserved fields must be zeroes.
- */
- struct type6_hdr {
- unsigned char reserved1; /* 0x00 */
- unsigned char type; /* 0x06 */
- unsigned char reserved2[2]; /* 0x0000 */
- unsigned char right[4]; /* 0x00000000 */
- unsigned char reserved3[2]; /* 0x0000 */
- unsigned char reserved4[2]; /* 0x0000 */
- unsigned char apfs[4]; /* 0x00000000 */
- unsigned int offset1; /* 0x00000058 (offset to CPRB) */
- unsigned int offset2; /* 0x00000000 */
- unsigned int offset3; /* 0x00000000 */
- unsigned int offset4; /* 0x00000000 */
- unsigned char agent_id[16]; /* 0x4341000000000000 */
- /* 0x0000000000000000 */
- unsigned char rqid[2]; /* rqid. internal to 603 */
- unsigned char reserved5[2]; /* 0x0000 */
- unsigned char function_code[2]; /* for PKD, 0x5044 (ascii 'PD') */
- unsigned char reserved6[2]; /* 0x0000 */
- unsigned int ToCardLen1; /* (request CPRB len + 3) & -4 */
- unsigned int ToCardLen2; /* db len 0x00000000 for PKD */
- unsigned int ToCardLen3; /* 0x00000000 */
- unsigned int ToCardLen4; /* 0x00000000 */
- unsigned int FromCardLen1; /* response buffer length */
- unsigned int FromCardLen2; /* db len 0x00000000 for PKD */
- unsigned int FromCardLen3; /* 0x00000000 */
- unsigned int FromCardLen4; /* 0x00000000 */
- } __packed;
- /**
- * The type 86 message family is associated with CEXxC/CEXxP cards.
- *
- * It contains a message header followed by a CPRB. The CPRB is
- * the same as the request CPRB, which is described above.
- *
- * If format is 1, an error condition exists and no data beyond
- * the 8-byte message header is of interest.
- *
- * The non-error message is shown below.
- *
- * Note that all reserved fields must be zeroes.
- */
- struct type86_hdr {
- unsigned char reserved1; /* 0x00 */
- unsigned char type; /* 0x86 */
- unsigned char format; /* 0x01 (error) or 0x02 (ok) */
- unsigned char reserved2; /* 0x00 */
- unsigned char reply_code; /* reply code (see above) */
- unsigned char reserved3[3]; /* 0x000000 */
- } __packed;
- #define TYPE86_RSP_CODE 0x86
- #define TYPE87_RSP_CODE 0x87
- #define TYPE86_FMT2 0x02
- struct type86_fmt2_ext {
- unsigned char reserved[4]; /* 0x00000000 */
- unsigned char apfs[4]; /* final status */
- unsigned int count1; /* length of CPRB + parameters */
- unsigned int offset1; /* offset to CPRB */
- unsigned int count2; /* 0x00000000 */
- unsigned int offset2; /* db offset 0x00000000 for PKD */
- unsigned int count3; /* 0x00000000 */
- unsigned int offset3; /* 0x00000000 */
- unsigned int count4; /* 0x00000000 */
- unsigned int offset4; /* 0x00000000 */
- } __packed;
- unsigned int get_cprb_fc(bool userspace, struct ica_xcRB *, struct ap_message *,
- unsigned int *, unsigned short **);
- unsigned int get_ep11cprb_fc(bool userspace, struct ep11_urb *, struct ap_message *,
- unsigned int *);
- unsigned int get_rng_fc(struct ap_message *, int *, unsigned int *);
- #define LOW 10
- #define MEDIUM 100
- #define HIGH 500
- int speed_idx_cca(int);
- int speed_idx_ep11(int);
- /**
- * Prepare a type6 CPRB message for random number generation
- *
- * @ap_dev: AP device pointer
- * @ap_msg: pointer to AP message
- */
- static inline void rng_type6CPRB_msgX(struct ap_message *ap_msg,
- unsigned int random_number_length,
- unsigned int *domain)
- {
- struct {
- struct type6_hdr hdr;
- struct CPRBX cprbx;
- char function_code[2];
- short int rule_length;
- char rule[8];
- short int verb_length;
- short int key_length;
- } __packed * msg = ap_msg->msg;
- static struct type6_hdr static_type6_hdrX = {
- .type = 0x06,
- .offset1 = 0x00000058,
- .agent_id = {'C', 'A'},
- .function_code = {'R', 'L'},
- .ToCardLen1 = sizeof(*msg) - sizeof(msg->hdr),
- .FromCardLen1 = sizeof(*msg) - sizeof(msg->hdr),
- };
- static struct CPRBX local_cprbx = {
- .cprb_len = 0x00dc,
- .cprb_ver_id = 0x02,
- .func_id = {0x54, 0x32},
- .req_parml = sizeof(*msg) - sizeof(msg->hdr) -
- sizeof(msg->cprbx),
- .rpl_msgbl = sizeof(*msg) - sizeof(msg->hdr),
- };
- msg->hdr = static_type6_hdrX;
- msg->hdr.FromCardLen2 = random_number_length,
- msg->cprbx = local_cprbx;
- msg->cprbx.rpl_datal = random_number_length,
- memcpy(msg->function_code, msg->hdr.function_code, 0x02);
- msg->rule_length = 0x0a;
- memcpy(msg->rule, "RANDOM ", 8);
- msg->verb_length = 0x02;
- msg->key_length = 0x02;
- ap_msg->len = sizeof(*msg);
- *domain = (unsigned short)msg->cprbx.domain;
- }
- void zcrypt_msgtype6_init(void);
- void zcrypt_msgtype6_exit(void);
- #endif /* _ZCRYPT_MSGTYPE6_H_ */
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