X-Git-Url: http://git.onelab.eu/?a=blobdiff_plain;f=drivers%2Fs390%2Fcrypto%2Fz90crypt.h;h=5e6b1f535f625b700496fdc909328a25b39dd6e1;hb=9464c7cf61b9433057924c36e6e02f303a00e768;hp=0ca1d126ccb665007bdd2aae98ab61743800cef9;hpb=41689045f6a3cbe0550e1d34e9cc20d2e8c432ba;p=linux-2.6.git diff --git a/drivers/s390/crypto/z90crypt.h b/drivers/s390/crypto/z90crypt.h index 0ca1d126c..5e6b1f535 100644 --- a/drivers/s390/crypto/z90crypt.h +++ b/drivers/s390/crypto/z90crypt.h @@ -1,7 +1,7 @@ /* * linux/drivers/s390/crypto/z90crypt.h * - * z90crypt 1.3.3 (kernel-private header) + * z90crypt 1.3.3 * * Copyright (C) 2001, 2005 IBM Corporation * Author(s): Robert Burroughs (burrough@us.ibm.com) @@ -27,7 +27,188 @@ #ifndef _Z90CRYPT_H_ #define _Z90CRYPT_H_ -#include +#include + +#define z90crypt_VERSION 1 +#define z90crypt_RELEASE 3 // 2 = PCIXCC, 3 = rewrite for coding standards +#define z90crypt_VARIANT 3 // 3 = CEX2A support + +/** + * 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 { + char __user * inputdata; + unsigned int inputdatalength; + char __user * outputdata; + unsigned int outputdatalength; + char __user * b_key; + char __user * 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 { + char __user * inputdata; + unsigned int inputdatalength; + char __user * outputdata; + unsigned int outputdatalength; + char __user * bp_key; + char __user * bq_key; + char __user * np_prime; + char __user * nq_prime; + char __user * u_mult_inv; +}; + +#define Z90_IOCTL_MAGIC 'z' // NOTE: Need to allocate from linux folks + +/** + * 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 + * + * Z90STAT_TOTALCOUNT + * Return an integer count of all device types together. + * + * Z90STAT_PCICACOUNT + * Return an integer count of all PCICAs. + * + * Z90STAT_PCICCCOUNT + * Return an integer count of all PCICCs. + * + * Z90STAT_PCIXCCMCL2COUNT + * Return an integer count of all MCL2 PCIXCCs. + * + * Z90STAT_PCIXCCMCL3COUNT + * Return an integer count of all MCL3 PCIXCCs. + * + * Z90STAT_CEX2CCOUNT + * Return an integer count of all CEX2Cs. + * + * Z90STAT_CEX2ACOUNT + * Return an integer count of all CEX2As. + * + * Z90STAT_REQUESTQ_COUNT + * Return an integer count of the number of entries waiting to be + * sent to a device. + * + * Z90STAT_PENDINGQ_COUNT + * Return an integer count of the number of entries sent to a + * device awaiting the reply. + * + * Z90STAT_TOTALOPEN_COUNT + * Return an integer count of the number of open file handles. + * + * Z90STAT_DOMAIN_INDEX + * Return the integer value of the Cryptographic Domain. + * + * Z90STAT_STATUS_MASK + * Return an 64 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 + * 0x0d: device is disabled via the proc filesystem + * + * Z90STAT_QDEPTH_MASK + * Return an 64 element array of unsigned chars for the queue + * depth of all devices. + * + * Z90STAT_PERDEV_REQCNT + * Return an 64 element array of unsigned integers for the number + * of successfully completed requests per device since the device + * was detected and made available. + * + * ICAZ90STATUS (deprecated) + * Return some device driver status in a ica_z90_status struct + * This takes an ica_z90_status struct as its arg. + * + * NOTE: this ioctl() is deprecated, and has been replaced with + * single ioctl()s for each type of status being requested + * + * Z90STAT_PCIXCCCOUNT (deprecated) + * Return an integer count of all PCIXCCs (MCL2 + MCL3). + * This is DEPRECATED now that MCL3 PCIXCCs are treated differently from + * MCL2 PCIXCCs. + * + * Z90QUIESCE (not recommended) + * Quiesce the driver. This is intended to stop all new + * requests from being processed. Its use is NOT recommended, + * except in circumstances where there is no other way to stop + * callers from accessing the driver. Its original use was to + * allow the driver to be "drained" of work in preparation for + * a system shutdown. + * + * NOTE: once issued, this ban on new work cannot be undone + * except by unloading and reloading the driver. + */ + +/** + * Supported ioctl calls + */ +#define ICARSAMODEXPO _IOC(_IOC_READ|_IOC_WRITE, Z90_IOCTL_MAGIC, 0x05, 0) +#define ICARSACRT _IOC(_IOC_READ|_IOC_WRITE, Z90_IOCTL_MAGIC, 0x06, 0) + +/* DEPRECATED status calls (bound for removal at some point) */ +#define ICAZ90STATUS _IOR(Z90_IOCTL_MAGIC, 0x10, struct ica_z90_status) +#define Z90STAT_PCIXCCCOUNT _IOR(Z90_IOCTL_MAGIC, 0x43, int) + +/* unrelated to ICA callers */ +#define Z90QUIESCE _IO(Z90_IOCTL_MAGIC, 0x11) + +/* New status calls */ +#define Z90STAT_TOTALCOUNT _IOR(Z90_IOCTL_MAGIC, 0x40, int) +#define Z90STAT_PCICACOUNT _IOR(Z90_IOCTL_MAGIC, 0x41, int) +#define Z90STAT_PCICCCOUNT _IOR(Z90_IOCTL_MAGIC, 0x42, int) +#define Z90STAT_PCIXCCMCL2COUNT _IOR(Z90_IOCTL_MAGIC, 0x4b, int) +#define Z90STAT_PCIXCCMCL3COUNT _IOR(Z90_IOCTL_MAGIC, 0x4c, int) +#define Z90STAT_CEX2CCOUNT _IOR(Z90_IOCTL_MAGIC, 0x4d, int) +#define Z90STAT_CEX2ACOUNT _IOR(Z90_IOCTL_MAGIC, 0x4e, int) +#define Z90STAT_REQUESTQ_COUNT _IOR(Z90_IOCTL_MAGIC, 0x44, int) +#define Z90STAT_PENDINGQ_COUNT _IOR(Z90_IOCTL_MAGIC, 0x45, int) +#define Z90STAT_TOTALOPEN_COUNT _IOR(Z90_IOCTL_MAGIC, 0x46, int) +#define Z90STAT_DOMAIN_INDEX _IOR(Z90_IOCTL_MAGIC, 0x47, int) +#define Z90STAT_STATUS_MASK _IOR(Z90_IOCTL_MAGIC, 0x48, char[64]) +#define Z90STAT_QDEPTH_MASK _IOR(Z90_IOCTL_MAGIC, 0x49, char[64]) +#define Z90STAT_PERDEV_REQCNT _IOR(Z90_IOCTL_MAGIC, 0x4a, int[64]) /** * local errno definitions