/* 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 /** * 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; int prep_cca_ap_msg(bool userspace, struct ica_xcRB *xcrb, struct ap_message *ap_msg, unsigned int *fc, unsigned short **dom); int prep_ep11_ap_msg(bool userspace, struct ep11_urb *xcrb, struct ap_message *ap_msg, unsigned int *fc, unsigned int *dom); int prep_rng_ap_msg(struct ap_message *ap_msg, int *fc, unsigned int *dom); #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_ */