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zcrypt.h
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/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */ /* * include/asm-s390/zcrypt.h * * zcrypt 2.2.1 (user-visible header) * * Copyright IBM Corp. 2001, 2022 * Author(s): Robert Burroughs * Eric Rossman (edrossma@us.ibm.com) * * Hotplug & misc device support: Jochen Roehrig (roehrig@de.ibm.com) */ #ifndef __ASM_S390_ZCRYPT_H #define __ASM_S390_ZCRYPT_H #define ZCRYPT_VERSION 2 #define ZCRYPT_RELEASE 2 #define ZCRYPT_VARIANT 1 #include <linux/ioctl.h> #include <linux/types.h> /* Name of the zcrypt device driver. */ #define ZCRYPT_NAME "zcrypt" /** * struct ica_rsa_modexpo * * Requirements: * - outputdatalength is at least as large as inputdatalength. * - All key parts are right justified in their fields, padded on * the left with zeroes. * - length(b_key) = inputdatalength * - length(n_modulus) = inputdatalength */ struct ica_rsa_modexpo { __u8 *inputdata; __u32 inputdatalength; __u8 *outputdata; __u32 outputdatalength; __u8 *b_key; __u8 *n_modulus; }; /** * struct ica_rsa_modexpo_crt * * Requirements: * - inputdatalength is even. * - outputdatalength is at least as large as inputdatalength. * - All key parts are right justified in their fields, padded on * the left with zeroes. * - length(bp_key) = inputdatalength/2 + 8 * - length(bq_key) = inputdatalength/2 * - length(np_key) = inputdatalength/2 + 8 * - length(nq_key) = inputdatalength/2 * - length(u_mult_inv) = inputdatalength/2 + 8 */ struct ica_rsa_modexpo_crt { __u8 *inputdata; __u32 inputdatalength; __u8 *outputdata; __u32 outputdatalength; __u8 *bp_key; __u8 *bq_key; __u8 *np_prime; __u8 *nq_prime; __u8 *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 CPRBX { __u16 cprb_len; /* CPRB length 220 */ __u8 cprb_ver_id; /* CPRB version id. 0x02 */ __u8 ctfm; /* Command Type Filtering Mask */ __u8 pad_000[2]; /* Alignment pad bytes */ __u8 func_id[2]; /* function id 0x5432 */ __u8 cprb_flags[4]; /* Flags */ __u32 req_parml; /* request parameter buffer len */ __u32 req_datal; /* request data buffer */ __u32 rpl_msgbl; /* reply message block length */ __u32 rpld_parml; /* replied parameter block len */ __u32 rpl_datal; /* reply data block len */ __u32 rpld_datal; /* replied data block len */ __u32 req_extbl; /* request extension block len */ __u8 _pad_001[4]; /* reserved */ __u32 rpld_extbl; /* replied extension block len */ __u8 _pad_002[16 - sizeof(__u8 *)]; __u8 *req_parmb; /* request parm block 'address' */ __u8 _pad_003[16 - sizeof(__u8 *)]; __u8 *req_datab; /* request data block 'address' */ __u8 _pad_004[16 - sizeof(__u8 *)]; __u8 *rpl_parmb; /* reply parm block 'address' */ __u8 _pad_005[16 - sizeof(__u8 *)]; __u8 *rpl_datab; /* reply data block 'address' */ __u8 _pad_006[16 - sizeof(__u8 *)]; __u8 *req_extb; /* request extension block 'addr'*/ __u8 _pad_007[16 - sizeof(__u8 *)]; __u8 *rpl_extb; /* reply extension block 'address'*/ __u16 ccp_rtcode; /* server return code */ __u16 ccp_rscode; /* server reason code */ __u32 mac_data_len; /* Mac Data Length */ __u8 logon_id[8]; /* Logon Identifier */ __u8 mac_value[8]; /* Mac Value */ __u8 mac_content_flgs; /* Mac content flag byte */ __u8 _pad_008; /* Alignment */ __u16 domain; /* Domain */ __u8 _pad_009[12]; /* reserved, checked for zeros */ __u8 _pad_010[36]; /* reserved */ } __attribute__((packed)); /** * xcRB */ struct ica_xcRB { __u16 agent_ID; __u32 user_defined; __u16 request_ID; __u32 request_control_blk_length; __u8 _padding1[16 - sizeof(__u8 *)]; __u8 *request_control_blk_addr; __u32 request_data_length; __u8 _padding2[16 - sizeof(__u8 *)]; __u8 *request_data_address; __u32 reply_control_blk_length; __u8 _padding3[16 - sizeof(__u8 *)]; __u8 *reply_control_blk_addr; __u32 reply_data_length; __u8 __padding4[16 - sizeof(__u8 *)]; __u8 *reply_data_addr; __u16 priority_window; __u32 status; } __attribute__((packed)); /** * struct ep11_cprb - EP11 connectivity programming request block * @cprb_len: CPRB header length [0x0020] * @cprb_ver_id: CPRB version id. [0x04] * @pad_000: Alignment pad bytes * @flags: Admin bit [0x80], Special bit [0x20] * @func_id: Function id / subtype [0x5434] "T4" * @source_id: Source id [originator id] * @target_id: Target id [usage/ctrl domain id] * @ret_code: Return code * @reserved1: Reserved * @reserved2: Reserved * @payload_len: Payload length */ struct ep11_cprb { __u16 cprb_len; __u8 cprb_ver_id; __u8 pad_000[2]; __u8 flags; __u8 func_id[2]; __u32 source_id; __u32 target_id; __u32 ret_code; __u32 reserved1; __u32 reserved2; __u32 payload_len; } __attribute__((packed)); /** * struct ep11_target_dev - EP11 target device list * @ap_id: AP device id * @dom_id: Usage domain id */ struct ep11_target_dev { __u16 ap_id; __u16 dom_id; }; /** * struct ep11_urb - EP11 user request block * @targets_num: Number of target adapters * @targets: Addr to target adapter list * @weight: Level of request priority * @req_no: Request id/number * @req_len: Request length * @req: Addr to request block * @resp_len: Response length * @resp: Addr to response block */ struct ep11_urb { __u16 targets_num; __u8 *targets; __u64 weight; __u64 req_no; __u64 req_len; __u8 *req; __u64 resp_len; __u8 *resp; } __attribute__((packed)); /** * struct zcrypt_device_status_ext * @hwtype: raw hardware type * @qid: 8 bit device index, 8 bit domain * @functions: AP device function bit field 'abcdef' * a, b, c = reserved * d = CCA coprocessor * e = Accelerator * f = EP11 coprocessor * @online online status * @reserved reserved */ struct zcrypt_device_status_ext { unsigned int hwtype:8; unsigned int qid:16; unsigned int online:1; unsigned int functions:6; unsigned int reserved:1; }; #define MAX_ZDEV_CARDIDS_EXT 256 #define MAX_ZDEV_DOMAINS_EXT 256 /* Maximum number of zcrypt devices */ #define MAX_ZDEV_ENTRIES_EXT (MAX_ZDEV_CARDIDS_EXT * MAX_ZDEV_DOMAINS_EXT) /* Device matrix of all zcrypt devices */ struct zcrypt_device_matrix_ext { struct zcrypt_device_status_ext device[MAX_ZDEV_ENTRIES_EXT]; }; #define AUTOSELECT 0xFFFFFFFF #define AUTOSEL_AP ((__u16)0xFFFF) #define AUTOSEL_DOM ((__u16)0xFFFF) #define ZCRYPT_IOCTL_MAGIC 'z' /** * Interface notes: * * The ioctl()s which are implemented (along with relevant details) * are: * * ICARSAMODEXPO * Perform an RSA operation using a Modulus-Exponent pair * This takes an ica_rsa_modexpo struct as its arg. * * NOTE: please refer to the comments preceding this structure * for the implementation details for the contents of the * block * * ICARSACRT * Perform an RSA operation using a Chinese-Remainder Theorem key * This takes an ica_rsa_modexpo_crt struct as its arg. * * NOTE: please refer to the comments preceding this structure * for the implementation details for the contents of the * block * * ZSECSENDCPRB * Send an arbitrary CPRB to a crypto card. * * ZSENDEP11CPRB * Send an arbitrary EP11 CPRB to an EP11 coprocessor crypto card. * * ZCRYPT_DEVICE_STATUS * The given struct zcrypt_device_matrix_ext is updated with * status information for each currently known apqn. * * ZCRYPT_STATUS_MASK * Return an MAX_ZDEV_CARDIDS_EXT element array of unsigned chars for the * status of all devices. * 0x01: PCICA * 0x02: PCICC * 0x03: PCIXCC_MCL2 * 0x04: PCIXCC_MCL3 * 0x05: CEX2C * 0x06: CEX2A * 0x07: CEX3C * 0x08: CEX3A * 0x0a: CEX4 * 0x0b: CEX5 * 0x0c: CEX6, CEX7 or CEX8 * 0x0d: device is disabled * * ZCRYPT_QDEPTH_MASK * Return an MAX_ZDEV_CARDIDS_EXT element array of unsigned chars for the * queue depth of all devices. * * ZCRYPT_PERDEV_REQCNT * Return an MAX_ZDEV_CARDIDS_EXT element array of unsigned integers for * the number of successfully completed requests per device since the * device was detected and made available. * */ /** * Supported ioctl calls */ #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) #define ZSENDEP11CPRB _IOC(_IOC_READ | _IOC_WRITE, ZCRYPT_IOCTL_MAGIC, 0x04, 0) #define ZCRYPT_DEVICE_STATUS _IOC(_IOC_READ | _IOC_WRITE, ZCRYPT_IOCTL_MAGIC, 0x5f, 0) #define ZCRYPT_STATUS_MASK _IOR(ZCRYPT_IOCTL_MAGIC, 0x58, char[MAX_ZDEV_CARDIDS_EXT]) #define ZCRYPT_QDEPTH_MASK _IOR(ZCRYPT_IOCTL_MAGIC, 0x59, char[MAX_ZDEV_CARDIDS_EXT]) #define ZCRYPT_PERDEV_REQCNT _IOR(ZCRYPT_IOCTL_MAGIC, 0x5a, int[MAX_ZDEV_CARDIDS_EXT]) /* * Support for multiple zcrypt device nodes. */ /* Nr of minor device node numbers to allocate. */ #define ZCRYPT_MAX_MINOR_NODES 256 /* Max amount of possible ioctls */ #define MAX_ZDEV_IOCTLS (1 << _IOC_NRBITS) /* * Only deprecated defines, structs and ioctls below this line. */ /* Deprecated: use MAX_ZDEV_CARDIDS_EXT */ #define MAX_ZDEV_CARDIDS 64 /* Deprecated: use MAX_ZDEV_DOMAINS_EXT */ #define MAX_ZDEV_DOMAINS 256 /* Deprecated: use MAX_ZDEV_ENTRIES_EXT */ #define MAX_ZDEV_ENTRIES (MAX_ZDEV_CARDIDS * MAX_ZDEV_DOMAINS) /* Deprecated: use struct zcrypt_device_status_ext */ struct zcrypt_device_status { unsigned int hwtype:8; unsigned int qid:14; unsigned int online:1; unsigned int functions:6; unsigned int reserved:3; }; /* Deprecated: use struct zcrypt_device_matrix_ext */ struct zcrypt_device_matrix { struct zcrypt_device_status device[MAX_ZDEV_ENTRIES]; }; /* Deprecated: use ZCRYPT_DEVICE_STATUS */ #define ZDEVICESTATUS _IOC(_IOC_READ | _IOC_WRITE, ZCRYPT_IOCTL_MAGIC, 0x4f, 0) /* Deprecated: use ZCRYPT_STATUS_MASK */ #define Z90STAT_STATUS_MASK _IOR(ZCRYPT_IOCTL_MAGIC, 0x48, char[64]) /* Deprecated: use ZCRYPT_QDEPTH_MASK */ #define Z90STAT_QDEPTH_MASK _IOR(ZCRYPT_IOCTL_MAGIC, 0x49, char[64]) /* Deprecated: use ZCRYPT_PERDEV_REQCNT */ #define Z90STAT_PERDEV_REQCNT _IOR(ZCRYPT_IOCTL_MAGIC, 0x4a, int[64]) /* Deprecated: use sysfs to query these values */ #define Z90STAT_REQUESTQ_COUNT _IOR(ZCRYPT_IOCTL_MAGIC, 0x44, int) #define Z90STAT_PENDINGQ_COUNT _IOR(ZCRYPT_IOCTL_MAGIC, 0x45, int) #define Z90STAT_TOTALOPEN_COUNT _IOR(ZCRYPT_IOCTL_MAGIC, 0x46, int) #define Z90STAT_DOMAIN_INDEX _IOR(ZCRYPT_IOCTL_MAGIC, 0x47, int) /* * The ioctl number ranges 0x40 - 0x42 and 0x4b - 0x4e had been used in the * past, don't assign new ioctls for these. */ #endif /* __ASM_S390_ZCRYPT_H */