From 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Sat, 16 Apr 2005 15:20:36 -0700 Subject: Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip! --- drivers/s390/crypto/Makefile | 6 + drivers/s390/crypto/z90common.h | 168 ++ drivers/s390/crypto/z90crypt.h | 258 +++ drivers/s390/crypto/z90hardware.c | 2243 +++++++++++++++++++++++ drivers/s390/crypto/z90main.c | 3563 +++++++++++++++++++++++++++++++++++++ 5 files changed, 6238 insertions(+) create mode 100644 drivers/s390/crypto/Makefile create mode 100644 drivers/s390/crypto/z90common.h create mode 100644 drivers/s390/crypto/z90crypt.h create mode 100644 drivers/s390/crypto/z90hardware.c create mode 100644 drivers/s390/crypto/z90main.c (limited to 'drivers/s390/crypto') diff --git a/drivers/s390/crypto/Makefile b/drivers/s390/crypto/Makefile new file mode 100644 index 000000000000..15edebbead7f --- /dev/null +++ b/drivers/s390/crypto/Makefile @@ -0,0 +1,6 @@ +# +# S/390 crypto devices +# + +z90crypt-objs := z90main.o z90hardware.o +obj-$(CONFIG_Z90CRYPT) += z90crypt.o diff --git a/drivers/s390/crypto/z90common.h b/drivers/s390/crypto/z90common.h new file mode 100644 index 000000000000..bcabac7a7c46 --- /dev/null +++ b/drivers/s390/crypto/z90common.h @@ -0,0 +1,168 @@ +/* + * linux/drivers/s390/crypto/z90common.h + * + * z90crypt 1.3.2 + * + * Copyright (C) 2001, 2004 IBM Corporation + * Author(s): Robert Burroughs (burrough@us.ibm.com) + * Eric Rossman (edrossma@us.ibm.com) + * + * Hotplug & misc device support: Jochen Roehrig (roehrig@de.ibm.com) + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2, or (at your option) + * any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + */ + +#ifndef _Z90COMMON_H_ +#define _Z90COMMON_H_ + +#define VERSION_Z90COMMON_H "$Revision: 1.16 $" + + +#define RESPBUFFSIZE 256 +#define PCI_FUNC_KEY_DECRYPT 0x5044 +#define PCI_FUNC_KEY_ENCRYPT 0x504B +extern int ext_bitlens; + +enum devstat { + DEV_GONE, + DEV_ONLINE, + DEV_QUEUE_FULL, + DEV_EMPTY, + DEV_NO_WORK, + DEV_BAD_MESSAGE, + DEV_TSQ_EXCEPTION, + DEV_RSQ_EXCEPTION, + DEV_SEN_EXCEPTION, + DEV_REC_EXCEPTION +}; + +enum hdstat { + HD_NOT_THERE, + HD_BUSY, + HD_DECONFIGURED, + HD_CHECKSTOPPED, + HD_ONLINE, + HD_TSQ_EXCEPTION +}; + +#define Z90C_NO_DEVICES 1 +#define Z90C_AMBIGUOUS_DOMAIN 2 +#define Z90C_INCORRECT_DOMAIN 3 +#define ENOTINIT 4 + +#define SEN_BUSY 7 +#define SEN_USER_ERROR 8 +#define SEN_QUEUE_FULL 11 +#define SEN_NOT_AVAIL 16 +#define SEN_PAD_ERROR 17 +#define SEN_RETRY 18 +#define SEN_RELEASED 24 + +#define REC_EMPTY 4 +#define REC_BUSY 6 +#define REC_OPERAND_INV 8 +#define REC_OPERAND_SIZE 9 +#define REC_EVEN_MOD 10 +#define REC_NO_WORK 11 +#define REC_HARDWAR_ERR 12 +#define REC_NO_RESPONSE 13 +#define REC_RETRY_DEV 14 +#define REC_USER_GONE 15 +#define REC_BAD_MESSAGE 16 +#define REC_INVALID_PAD 17 +#define REC_USE_PCICA 18 + +#define WRONG_DEVICE_TYPE 20 + +#define REC_FATAL_ERROR 32 +#define SEN_FATAL_ERROR 33 +#define TSQ_FATAL_ERROR 34 +#define RSQ_FATAL_ERROR 35 + +#define Z90CRYPT_NUM_TYPES 5 +#define PCICA 0 +#define PCICC 1 +#define PCIXCC_MCL2 2 +#define PCIXCC_MCL3 3 +#define CEX2C 4 +#define NILDEV -1 +#define ANYDEV -1 +#define PCIXCC_UNK -2 + +enum hdevice_type { + PCICC_HW = 3, + PCICA_HW = 4, + PCIXCC_HW = 5, + OTHER_HW = 6, + CEX2C_HW = 7 +}; + +struct CPRBX { + unsigned short cprb_len; + unsigned char cprb_ver_id; + unsigned char pad_000[3]; + unsigned char func_id[2]; + unsigned char cprb_flags[4]; + unsigned int req_parml; + unsigned int req_datal; + unsigned int rpl_msgbl; + unsigned int rpld_parml; + unsigned int rpl_datal; + unsigned int rpld_datal; + unsigned int req_extbl; + unsigned char pad_001[4]; + unsigned int rpld_extbl; + unsigned char req_parmb[16]; + unsigned char req_datab[16]; + unsigned char rpl_parmb[16]; + unsigned char rpl_datab[16]; + unsigned char req_extb[16]; + unsigned char rpl_extb[16]; + unsigned short ccp_rtcode; + unsigned short ccp_rscode; + unsigned int mac_data_len; + unsigned char logon_id[8]; + unsigned char mac_value[8]; + unsigned char mac_content_flgs; + unsigned char pad_002; + unsigned short domain; + unsigned char pad_003[12]; + unsigned char pad_004[36]; +}; + +#ifndef DEV_NAME +#define DEV_NAME "z90crypt" +#endif +#define PRINTK(fmt, args...) \ + printk(KERN_DEBUG DEV_NAME ": %s -> " fmt, __FUNCTION__ , ## args) +#define PRINTKN(fmt, args...) \ + printk(KERN_DEBUG DEV_NAME ": " fmt, ## args) +#define PRINTKW(fmt, args...) \ + printk(KERN_WARNING DEV_NAME ": %s -> " fmt, __FUNCTION__ , ## args) +#define PRINTKC(fmt, args...) \ + printk(KERN_CRIT DEV_NAME ": %s -> " fmt, __FUNCTION__ , ## args) + +#ifdef Z90CRYPT_DEBUG +#define PDEBUG(fmt, args...) \ + printk(KERN_DEBUG DEV_NAME ": %s -> " fmt, __FUNCTION__ , ## args) +#else +#define PDEBUG(fmt, args...) do {} while (0) +#endif + +#define UMIN(a,b) ((a) < (b) ? (a) : (b)) +#define IS_EVEN(x) ((x) == (2 * ((x) / 2))) + + +#endif diff --git a/drivers/s390/crypto/z90crypt.h b/drivers/s390/crypto/z90crypt.h new file mode 100644 index 000000000000..82a1d97001d7 --- /dev/null +++ b/drivers/s390/crypto/z90crypt.h @@ -0,0 +1,258 @@ +/* + * linux/drivers/s390/crypto/z90crypt.h + * + * z90crypt 1.3.2 + * + * Copyright (C) 2001, 2004 IBM Corporation + * Author(s): Robert Burroughs (burrough@us.ibm.com) + * Eric Rossman (edrossma@us.ibm.com) + * + * Hotplug & misc device support: Jochen Roehrig (roehrig@de.ibm.com) + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2, or (at your option) + * any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + */ + +#ifndef _Z90CRYPT_H_ +#define _Z90CRYPT_H_ + +#include + +#define VERSION_Z90CRYPT_H "$Revision: 1.11 $" + +#define z90crypt_VERSION 1 +#define z90crypt_RELEASE 3 // 2 = PCIXCC, 3 = rewrite for coding standards +#define z90crypt_VARIANT 2 // 2 = added PCIXCC MCL3 and CEX2C support + +/** + * If we are not using the sparse checker, __user has no use. + */ +#ifdef __CHECKER__ +# define __user __attribute__((noderef, address_space(1))) +#else +# define __user +#endif + +/** + * 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_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 + * 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_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 + */ +#define ENOBUFF 129 // filp->private_data->...>work_elem_p->buffer is NULL +#define EWORKPEND 130 // user issues ioctl while another pending +#define ERELEASED 131 // user released while ioctl pending +#define EQUIESCE 132 // z90crypt quiescing (no more work allowed) +#define ETIMEOUT 133 // request timed out +#define EUNKNOWN 134 // some unrecognized error occured (retry may succeed) +#define EGETBUFF 135 // Error getting buffer or hardware lacks capability + // (retry in software) + +/** + * DEPRECATED STRUCTURES + */ + +/** + * This structure is DEPRECATED and the corresponding ioctl() has been + * replaced with individual ioctl()s for each piece of data! + * This structure will NOT survive past version 1.3.1, so switch to the + * new ioctl()s. + */ +#define MASK_LENGTH 64 // mask length +struct ica_z90_status { + int totalcount; + int leedslitecount; // PCICA + int leeds2count; // PCICC + // int PCIXCCCount; is not in struct for backward compatibility + int requestqWaitCount; + int pendingqWaitCount; + int totalOpenCount; + int cryptoDomain; + // status: 0=not there, 1=PCICA, 2=PCICC, 3=PCIXCC_MCL2, 4=PCIXCC_MCL3, + // 5=CEX2C + unsigned char status[MASK_LENGTH]; + // qdepth: # work elements waiting for each device + unsigned char qdepth[MASK_LENGTH]; +}; + +#endif /* _Z90CRYPT_H_ */ diff --git a/drivers/s390/crypto/z90hardware.c b/drivers/s390/crypto/z90hardware.c new file mode 100644 index 000000000000..beb6a5e0da22 --- /dev/null +++ b/drivers/s390/crypto/z90hardware.c @@ -0,0 +1,2243 @@ +/* + * linux/drivers/s390/crypto/z90hardware.c + * + * z90crypt 1.3.2 + * + * Copyright (C) 2001, 2004 IBM Corporation + * Author(s): Robert Burroughs (burrough@us.ibm.com) + * Eric Rossman (edrossma@us.ibm.com) + * + * Hotplug & misc device support: Jochen Roehrig (roehrig@de.ibm.com) + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2, or (at your option) + * any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + */ + +#include +#include +#include +#include +#include +#include "z90crypt.h" +#include "z90common.h" + +#define VERSION_Z90HARDWARE_C "$Revision: 1.33 $" + +char z90hardware_version[] __initdata = + "z90hardware.o (" VERSION_Z90HARDWARE_C "/" + VERSION_Z90COMMON_H "/" VERSION_Z90CRYPT_H ")"; + +struct cca_token_hdr { + unsigned char token_identifier; + unsigned char version; + unsigned short token_length; + unsigned char reserved[4]; +}; + +#define CCA_TKN_HDR_ID_EXT 0x1E + +struct cca_private_ext_ME_sec { + unsigned char section_identifier; + unsigned char version; + unsigned short section_length; + unsigned char private_key_hash[20]; + unsigned char reserved1[4]; + unsigned char key_format; + unsigned char reserved2; + unsigned char key_name_hash[20]; + unsigned char key_use_flags[4]; + unsigned char reserved3[6]; + unsigned char reserved4[24]; + unsigned char confounder[24]; + unsigned char exponent[128]; + unsigned char modulus[128]; +}; + +#define CCA_PVT_USAGE_ALL 0x80 + +struct cca_public_sec { + unsigned char section_identifier; + unsigned char version; + unsigned short section_length; + unsigned char reserved[2]; + unsigned short exponent_len; + unsigned short modulus_bit_len; + unsigned short modulus_byte_len; + unsigned char exponent[3]; +}; + +struct cca_private_ext_ME { + struct cca_token_hdr pvtMEHdr; + struct cca_private_ext_ME_sec pvtMESec; + struct cca_public_sec pubMESec; +}; + +struct cca_public_key { + struct cca_token_hdr pubHdr; + struct cca_public_sec pubSec; +}; + +struct cca_pvt_ext_CRT_sec { + unsigned char section_identifier; + unsigned char version; + unsigned short section_length; + unsigned char private_key_hash[20]; + unsigned char reserved1[4]; + unsigned char key_format; + unsigned char reserved2; + unsigned char key_name_hash[20]; + unsigned char key_use_flags[4]; + unsigned short p_len; + unsigned short q_len; + unsigned short dp_len; + unsigned short dq_len; + unsigned short u_len; + unsigned short mod_len; + unsigned char reserved3[4]; + unsigned short pad_len; + unsigned char reserved4[52]; + unsigned char confounder[8]; +}; + +#define CCA_PVT_EXT_CRT_SEC_ID_PVT 0x08 +#define CCA_PVT_EXT_CRT_SEC_FMT_CL 0x40 + +struct cca_private_ext_CRT { + struct cca_token_hdr pvtCrtHdr; + struct cca_pvt_ext_CRT_sec pvtCrtSec; + struct cca_public_sec pubCrtSec; +}; + +struct ap_status_word { + unsigned char q_stat_flags; + unsigned char response_code; + unsigned char reserved[2]; +}; + +#define AP_Q_STATUS_EMPTY 0x80 +#define AP_Q_STATUS_REPLIES_WAITING 0x40 +#define AP_Q_STATUS_ARRAY_FULL 0x20 + +#define AP_RESPONSE_NORMAL 0x00 +#define AP_RESPONSE_Q_NOT_AVAIL 0x01 +#define AP_RESPONSE_RESET_IN_PROGRESS 0x02 +#define AP_RESPONSE_DECONFIGURED 0x03 +#define AP_RESPONSE_CHECKSTOPPED 0x04 +#define AP_RESPONSE_BUSY 0x05 +#define AP_RESPONSE_Q_FULL 0x10 +#define AP_RESPONSE_NO_PENDING_REPLY 0x10 +#define AP_RESPONSE_INDEX_TOO_BIG 0x11 +#define AP_RESPONSE_NO_FIRST_PART 0x13 +#define AP_RESPONSE_MESSAGE_TOO_BIG 0x15 + +#define AP_MAX_CDX_BITL 4 +#define AP_RQID_RESERVED_BITL 4 +#define SKIP_BITL (AP_MAX_CDX_BITL + AP_RQID_RESERVED_BITL) + +struct type4_hdr { + unsigned char reserved1; + unsigned char msg_type_code; + unsigned short msg_len; + unsigned char request_code; + unsigned char msg_fmt; + unsigned short reserved2; +}; + +#define TYPE4_TYPE_CODE 0x04 +#define TYPE4_REQU_CODE 0x40 + +#define TYPE4_SME_LEN 0x0188 +#define TYPE4_LME_LEN 0x0308 +#define TYPE4_SCR_LEN 0x01E0 +#define TYPE4_LCR_LEN 0x03A0 + +#define TYPE4_SME_FMT 0x00 +#define TYPE4_LME_FMT 0x10 +#define TYPE4_SCR_FMT 0x40 +#define TYPE4_LCR_FMT 0x50 + +struct type4_sme { + struct type4_hdr header; + unsigned char message[128]; + unsigned char exponent[128]; + unsigned char modulus[128]; +}; + +struct type4_lme { + struct type4_hdr header; + unsigned char message[256]; + unsigned char exponent[256]; + unsigned char modulus[256]; +}; + +struct type4_scr { + struct type4_hdr header; + unsigned char message[128]; + unsigned char dp[72]; + unsigned char dq[64]; + unsigned char p[72]; + unsigned char q[64]; + unsigned char u[72]; +}; + +struct type4_lcr { + struct type4_hdr header; + unsigned char message[256]; + unsigned char dp[136]; + unsigned char dq[128]; + unsigned char p[136]; + unsigned char q[128]; + unsigned char u[136]; +}; + +union type4_msg { + struct type4_sme sme; + struct type4_lme lme; + struct type4_scr scr; + struct type4_lcr lcr; +}; + +struct type84_hdr { + unsigned char reserved1; + unsigned char code; + unsigned short len; + unsigned char reserved2[4]; +}; + +#define TYPE84_RSP_CODE 0x84 + +struct type6_hdr { + unsigned char reserved1; + unsigned char type; + unsigned char reserved2[2]; + unsigned char right[4]; + unsigned char reserved3[2]; + unsigned char reserved4[2]; + unsigned char apfs[4]; + unsigned int offset1; + unsigned int offset2; + unsigned int offset3; + unsigned int offset4; + unsigned char agent_id[16]; + unsigned char rqid[2]; + unsigned char reserved5[2]; + unsigned char function_code[2]; + unsigned char reserved6[2]; + unsigned int ToCardLen1; + unsigned int ToCardLen2; + unsigned int ToCardLen3; + unsigned int ToCardLen4; + unsigned int FromCardLen1; + unsigned int FromCardLen2; + unsigned int FromCardLen3; + unsigned int FromCardLen4; +}; + +struct CPRB { + unsigned char cprb_len[2]; + unsigned char cprb_ver_id; + unsigned char pad_000; + unsigned char srpi_rtcode[4]; + unsigned char srpi_verb; + unsigned char flags; + unsigned char func_id[2]; + unsigned char checkpoint_flag; + unsigned char resv2; + unsigned char req_parml[2]; + unsigned char req_parmp[4]; + unsigned char req_datal[4]; + unsigned char req_datap[4]; + unsigned char rpl_parml[2]; + unsigned char pad_001[2]; + unsigned char rpl_parmp[4]; + unsigned char rpl_datal[4]; + unsigned char rpl_datap[4]; + unsigned char ccp_rscode[2]; + unsigned char ccp_rtcode[2]; + unsigned char repd_parml[2]; + unsigned char mac_data_len[2]; + unsigned char repd_datal[4]; + unsigned char req_pc[2]; + unsigned char res_origin[8]; + unsigned char mac_value[8]; + unsigned char logon_id[8]; + unsigned char usage_domain[2]; + unsigned char resv3[18]; + unsigned char svr_namel[2]; + unsigned char svr_name[8]; +}; + +struct type6_msg { + struct type6_hdr header; + struct CPRB CPRB; +}; + +union request_msg { + union type4_msg t4msg; + struct type6_msg t6msg; +}; + +struct request_msg_ext { + int q_nr; + unsigned char *psmid; + union request_msg reqMsg; +}; + +struct type82_hdr { + unsigned char reserved1; + unsigned char type; + unsigned char reserved2[2]; + unsigned char reply_code; + unsigned char reserved3[3]; +}; + +#define TYPE82_RSP_CODE 0x82 + +#define REPLY_ERROR_MACHINE_FAILURE 0x10 +#define REPLY_ERROR_PREEMPT_FAILURE 0x12 +#define REPLY_ERROR_CHECKPT_FAILURE 0x14 +#define REPLY_ERROR_MESSAGE_TYPE 0x20 +#define REPLY_ERROR_INVALID_COMM_CD 0x21 +#define REPLY_ERROR_INVALID_MSG_LEN 0x23 +#define REPLY_ERROR_RESERVD_FIELD 0x24 +#define REPLY_ERROR_FORMAT_FIELD 0x29 +#define REPLY_ERROR_INVALID_COMMAND 0x30 +#define REPLY_ERROR_MALFORMED_MSG 0x40 +#define REPLY_ERROR_RESERVED_FIELDO 0x50 +#define REPLY_ERROR_WORD_ALIGNMENT 0x60 +#define REPLY_ERROR_MESSAGE_LENGTH 0x80 +#define REPLY_ERROR_OPERAND_INVALID 0x82 +#define REPLY_ERROR_OPERAND_SIZE 0x84 +#define REPLY_ERROR_EVEN_MOD_IN_OPND 0x85 +#define REPLY_ERROR_RESERVED_FIELD 0x88 +#define REPLY_ERROR_TRANSPORT_FAIL 0x90 +#define REPLY_ERROR_PACKET_TRUNCATED 0xA0 +#define REPLY_ERROR_ZERO_BUFFER_LEN 0xB0 + +struct type86_hdr { + unsigned char reserved1; + unsigned char type; + unsigned char format; + unsigned char reserved2; + unsigned char reply_code; + unsigned char reserved3[3]; +}; + +#define TYPE86_RSP_CODE 0x86 +#define TYPE86_FMT2 0x02 + +struct type86_fmt2_msg { + struct type86_hdr hdr; + unsigned char reserved[4]; + unsigned char apfs[4]; + unsigned int count1; + unsigned int offset1; + unsigned int count2; + unsigned int offset2; + unsigned int count3; + unsigned int offset3; + unsigned int count4; + unsigned int offset4; +}; + +static struct type6_hdr static_type6_hdr = { + 0x00, + 0x06, + {0x00,0x00}, + {0x00,0x00,0x00,0x00}, + {0x00,0x00}, + {0x00,0x00}, + {0x00,0x00,0x00,0x00}, + 0x00000058, + 0x00000000, + 0x00000000, + 0x00000000, + {0x01,0x00,0x43,0x43,0x41,0x2D,0x41,0x50, + 0x50,0x4C,0x20,0x20,0x20,0x01,0x01,0x01}, + {0x00,0x00}, + {0x00,0x00}, + {0x50,0x44}, + {0x00,0x00}, + 0x00000000, + 0x00000000, + 0x00000000, + 0x00000000, + 0x00000000, + 0x00000000, + 0x00000000, + 0x00000000 +}; + +static struct type6_hdr static_type6_hdrX = { + 0x00, + 0x06, + {0x00,0x00}, + {0x00,0x00,0x00,0x00}, + {0x00,0x00}, + {0x00,0x00}, + {0x00,0x00,0x00,0x00}, + 0x00000058, + 0x00000000, + 0x00000000, + 0x00000000, + {0x43,0x41,0x00,0x00,0x00,0x00,0x00,0x00, + 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00}, + {0x00,0x00}, + {0x00,0x00}, + {0x50,0x44}, + {0x00,0x00}, + 0x00000000, + 0x00000000, + 0x00000000, + 0x00000000, + 0x00000000, + 0x00000000, + 0x00000000, + 0x00000000 +}; + +static struct CPRB static_cprb = { + {0x70,0x00}, + 0x41, + 0x00, + {0x00,0x00,0x00,0x00}, + 0x00, + 0x00, + {0x54,0x32}, + 0x01, + 0x00, + {0x00,0x00}, + {0x00,0x00,0x00,0x00}, + {0x00,0x00,0x00,0x00}, + {0x00,0x00,0x00,0x00}, + {0x00,0x00}, + {0x00,0x00}, + {0x00,0x00,0x00,0x00}, + {0x00,0x00,0x00,0x00}, + {0x00,0x00,0x00,0x00}, + {0x00,0x00}, + {0x00,0x00}, + {0x00,0x00}, + {0x00,0x00}, + {0x00,0x00,0x00,0x00}, + {0x00,0x00}, + {0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00}, + {0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00}, + {0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00}, + {0x00,0x00}, + {0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, + 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, + 0x00,0x00}, + {0x08,0x00}, + {0x49,0x43,0x53,0x46,0x20,0x20,0x20,0x20} +}; + +struct function_and_rules_block { + unsigned char function_code[2]; + unsigned char ulen[2]; + unsigned char only_rule[8]; +}; + +static struct function_and_rules_block static_pkd_function_and_rules = { + {0x50,0x44}, + {0x0A,0x00}, + {'P','K','C','S','-','1','.','2'} +}; + +static struct function_and_rules_block static_pke_function_and_rules = { + {0x50,0x4B}, + {0x0A,0x00}, + {'P','K','C','S','-','1','.','2'} +}; + +struct T6_keyBlock_hdr { + unsigned char blen[2]; + unsigned char ulen[2]; + unsigned char flags[2]; +}; + +static struct T6_keyBlock_hdr static_T6_keyBlock_hdr = { + {0x89,0x01}, + {0x87,0x01}, + {0x00} +}; + +static struct CPRBX static_cprbx = { + 0x00DC, + 0x02, + {0x00,0x00,0x00}, + {0x54,0x32}, + {0x00,0x00,0x00,0x00}, + 0x00000000, + 0x00000000, + 0x00000000, + 0x00000000, + 0x00000000, + 0x00000000, + 0x00000000, + {0x00,0x00,0x00,0x00}, + 0x00000000, + {0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, + 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00}, + {0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, + 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00}, + {0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, + 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00}, + {0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, + 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00}, + {0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, + 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00}, + {0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, + 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00}, + 0x0000, + 0x0000, + 0x00000000, + {0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00}, + {0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00}, + 0x00, + 0x00, + 0x0000, + {0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00}, + {0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, + 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, + 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00} +}; + +static struct function_and_rules_block static_pkd_function_and_rulesX_MCL2 = { + {0x50,0x44}, + {0x00,0x0A}, + {'P','K','C','S','-','1','.','2'} +}; + +static struct function_and_rules_block static_pke_function_and_rulesX_MCL2 = { + {0x50,0x4B}, + {0x00,0x0A}, + {'Z','E','R','O','-','P','A','D'} +}; + +static struct function_and_rules_block static_pkd_function_and_rulesX = { + {0x50,0x44}, + {0x00,0x0A}, + {'Z','E','R','O','-','P','A','D'} +}; + +static struct function_and_rules_block static_pke_function_and_rulesX = { + {0x50,0x4B}, + {0x00,0x0A}, + {'M','R','P',' ',' ',' ',' ',' '} +}; + +struct T6_keyBlock_hdrX { + unsigned short blen; + unsigned short ulen; + unsigned char flags[2]; +}; + +static unsigned char static_pad[256] = { +0x1B,0x7B,0x5D,0xB5,0x75,0x01,0x3D,0xFD,0x8D,0xD1,0xC7,0x03,0x2D,0x09,0x23,0x57, +0x89,0x49,0xB9,0x3F,0xBB,0x99,0x41,0x5B,0x75,0x21,0x7B,0x9D,0x3B,0x6B,0x51,0x39, +0xBB,0x0D,0x35,0xB9,0x89,0x0F,0x93,0xA5,0x0B,0x47,0xF1,0xD3,0xBB,0xCB,0xF1,0x9D, +0x23,0x73,0x71,0xFF,0xF3,0xF5,0x45,0xFB,0x61,0x29,0x23,0xFD,0xF1,0x29,0x3F,0x7F, +0x17,0xB7,0x1B,0xA9,0x19,0xBD,0x57,0xA9,0xD7,0x95,0xA3,0xCB,0xED,0x1D,0xDB,0x45, +0x7D,0x11,0xD1,0x51,0x1B,0xED,0x71,0xE9,0xB1,0xD1,0xAB,0xAB,0x21,0x2B,0x1B,0x9F, +0x3B,0x9F,0xF7,0xF7,0xBD,0x63,0xEB,0xAD,0xDF,0xB3,0x6F,0x5B,0xDB,0x8D,0xA9,0x5D, +0xE3,0x7D,0x77,0x49,0x47,0xF5,0xA7,0xFD,0xAB,0x2F,0x27,0x35,0x77,0xD3,0x49,0xC9, +0x09,0xEB,0xB1,0xF9,0xBF,0x4B,0xCB,0x2B,0xEB,0xEB,0x05,0xFF,0x7D,0xC7,0x91,0x8B, +0x09,0x83,0xB9,0xB9,0x69,0x33,0x39,0x6B,0x79,0x75,0x19,0xBF,0xBB,0x07,0x1D,0xBD, +0x29,0xBF,0x39,0x95,0x93,0x1D,0x35,0xC7,0xC9,0x4D,0xE5,0x97,0x0B,0x43,0x9B,0xF1, +0x16,0x93,0x03,0x1F,0xA5,0xFB,0xDB,0xF3,0x27,0x4F,0x27,0x61,0x05,0x1F,0xB9,0x23, +0x2F,0xC3,0x81,0xA9,0x23,0x71,0x55,0x55,0xEB,0xED,0x41,0xE5,0xF3,0x11,0xF1,0x43, +0x69,0x03,0xBD,0x0B,0x37,0x0F,0x51,0x8F,0x0B,0xB5,0x89,0x5B,0x67,0xA9,0xD9,0x4F, +0x01,0xF9,0x21,0x77,0x37,0x73,0x79,0xC5,0x7F,0x51,0xC1,0xCF,0x97,0xA1,0x75,0xAD, +0x35,0x9D,0xD3,0xD3,0xA7,0x9D,0x5D,0x41,0x6F,0x65,0x1B,0xCF,0xA9,0x87,0x91,0x09 +}; + +static struct cca_private_ext_ME static_pvt_me_key = { + { + 0x1E, + 0x00, + 0x0183, + {0x00,0x00,0x00,0x00} + }, + + { + 0x02, + 0x00, + 0x016C, + {0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, + 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, + 0x00,0x00,0x00,0x00}, + {0x00,0x00,0x00,0x00}, + 0x00, + 0x00, + {0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, + 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, + 0x00,0x00,0x00,0x00}, + {0x80,0x00,0x00,0x00}, + {0x00,0x00,0x00,0x00,0x00,0x00}, + {0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, + 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, + 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00}, + {0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, + 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, + 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00}, + {0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, + 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, + 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, + 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, + 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, + 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, + 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, + 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, + 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, + 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, + 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, + 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, + 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, + 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, + 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, + 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00}, + {0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, + 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, + 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, + 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, + 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, + 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, + 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, + 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, + 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, + 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, + 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, + 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, + 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, + 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, + 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, + 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00} + }, + + { + 0x04, + 0x00, + 0x000F, + {0x00,0x00}, + 0x0003, + 0x0000, + 0x0000, + {0x01,0x00,0x01} + } +}; + +static struct cca_public_key static_public_key = { + { + 0x1E, + 0x00, + 0x0000, + {0x00,0x00,0x00,0x00} + }, + + { + 0x04, + 0x00, + 0x0000, + {0x00,0x00}, + 0x0000, + 0x0000, + 0x0000, + {0x01,0x00,0x01} + } +}; + +#define FIXED_TYPE6_ME_LEN 0x0000025F + +#define FIXED_TYPE6_ME_EN_LEN 0x000000F0 + +#define FIXED_TYPE6_ME_LENX 0x000002CB + +#define FIXED_TYPE6_ME_EN_LENX 0x0000015C + +static struct cca_public_sec static_cca_pub_sec = { + 0x04, + 0x00, + 0x000f, + {0x00,0x00}, + 0x0003, + 0x0000, + 0x0000, + {0x01,0x00,0x01} +}; + +#define FIXED_TYPE6_CR_LEN 0x00000177 + +#define FIXED_TYPE6_CR_LENX 0x000001E3 + +#define MAX_RESPONSE_SIZE 0x00000710 + +#define MAX_RESPONSEX_SIZE 0x0000077C + +#define RESPONSE_CPRB_SIZE 0x000006B8 +#define RESPONSE_CPRBX_SIZE 0x00000724 + +#define CALLER_HEADER 12 + +static unsigned char static_PKE_function_code[2] = {0x50, 0x4B}; + +static inline int +testq(int q_nr, int *q_depth, int *dev_type, struct ap_status_word *stat) +{ + int ccode; + + asm volatile +#ifdef __s390x__ + (" llgfr 0,%4 \n" + " slgr 1,1 \n" + " lgr 2,1 \n" + "0: .long 0xb2af0000 \n" + "1: ipm %0 \n" + " srl %0,28 \n" + " iihh %0,0 \n" + " iihl %0,0 \n" + " lgr %1,1 \n" + " lgr %3,2 \n" + " srl %3,24 \n" + " sll 2,24 \n" + " srl 2,24 \n" + " lgr %2,2 \n" + "2: \n" + ".section .fixup,\"ax\" \n" + "3: \n" + " lhi %0,%h5 \n" + " jg 2b \n" + ".previous \n" + ".section __ex_table,\"a\" \n" + " .align 8 \n" + " .quad 0b,3b \n" + " .quad 1b,3b \n" + ".previous" + :"=d" (ccode),"=d" (*stat),"=d" (*q_depth), "=d" (*dev_type) + :"d" (q_nr), "K" (DEV_TSQ_EXCEPTION) + :"cc","0","1","2","memory"); +#else + (" lr 0,%4 \n" + " slr 1,1 \n" + " lr 2,1 \n" + "0: .long 0xb2af0000 \n" + "1: ipm %0 \n" + " srl %0,28 \n" + " lr %1,1 \n" + " lr %3,2 \n" + " srl %3,24 \n" + " sll 2,24 \n" + " srl 2,24 \n" + " lr %2,2 \n" + "2: \n" + ".section .fixup,\"ax\" \n" + "3: \n" + " lhi %0,%h5 \n" + " bras 1,4f \n" + " .long 2b \n" + "4: \n" + " l 1,0(1) \n" + " br 1 \n" + ".previous \n" + ".section __ex_table,\"a\" \n" + " .align 4 \n" + " .long 0b,3b \n" + " .long 1b,3b \n" + ".previous" + :"=d" (ccode),"=d" (*stat),"=d" (*q_depth), "=d" (*dev_type) + :"d" (q_nr), "K" (DEV_TSQ_EXCEPTION) + :"cc","0","1","2","memory"); +#endif + return ccode; +} + +static inline int +resetq(int q_nr, struct ap_status_word *stat_p) +{ + int ccode; + + asm volatile +#ifdef __s390x__ + (" llgfr 0,%2 \n" + " lghi 1,1 \n" + " sll 1,24 \n" + " or 0,1 \n" + " slgr 1,1 \n" + " lgr 2,1 \n" + "0: .long 0xb2af0000 \n" + "1: ipm %0 \n" + " srl %0,28 \n" + " iihh %0,0 \n" + " iihl %0,0 \n" + " lgr %1,1 \n" + "2: \n" + ".section .fixup,\"ax\" \n" + "3: \n" + " lhi %0,%h3 \n" + " jg 2b \n" + ".previous \n" + ".section __ex_table,\"a\" \n" + " .align 8 \n" + " .quad 0b,3b \n" + " .quad 1b,3b \n" + ".previous" + :"=d" (ccode),"=d" (*stat_p) + :"d" (q_nr), "K" (DEV_RSQ_EXCEPTION) + :"cc","0","1","2","memory"); +#else + (" lr 0,%2 \n" + " lhi 1,1 \n" + " sll 1,24 \n" + " or 0,1 \n" + " slr 1,1 \n" + " lr 2,1 \n" + "0: .long 0xb2af0000 \n" + "1: ipm %0 \n" + " srl %0,28 \n" + " lr %1,1 \n" + "2: \n" + ".section .fixup,\"ax\" \n" + "3: \n" + " lhi %0,%h3 \n" + " bras 1,4f \n" + " .long 2b \n" + "4: \n" + " l 1,0(1) \n" + " br 1 \n" + ".previous \n" + ".section __ex_table,\"a\" \n" + " .align 4 \n" + " .long 0b,3b \n" + " .long 1b,3b \n" + ".previous" + :"=d" (ccode),"=d" (*stat_p) + :"d" (q_nr), "K" (DEV_RSQ_EXCEPTION) + :"cc","0","1","2","memory"); +#endif + return ccode; +} + +static inline int +sen(int msg_len, unsigned char *msg_ext, struct ap_status_word *stat) +{ + int ccode; + + asm volatile +#ifdef __s390x__ + (" lgr 6,%3 \n" + " llgfr 7,%2 \n" + " llgt 0,0(6) \n" + " lghi 1,64 \n" + " sll 1,24 \n" + " or 0,1 \n" + " la 6,4(6) \n" + " llgt 2,0(6) \n" + " llgt 3,4(6) \n" + " la 6,8(6) \n" + " slr 1,1 \n" + "0: .long 0xb2ad0026 \n" + "1: brc 2,0b \n" + " ipm %0 \n" + " srl %0,28 \n" + " iihh %0,0 \n" + " iihl %0,0 \n" + " lgr %1,1 \n" + "2: \n" + ".section .fixup,\"ax\" \n" + "3: \n" + " lhi %0,%h4 \n" + " jg 2b \n" + ".previous \n" + ".section __ex_table,\"a\" \n" + " .align 8 \n" + " .quad 0b,3b \n" + " .quad 1b,3b \n" + ".previous" + :"=d" (ccode),"=d" (*stat) + :"d" (msg_len),"a" (msg_ext), "K" (DEV_SEN_EXCEPTION) + :"cc","0","1","2","3","6","7","memory"); +#else + (" lr 6,%3 \n" + " lr 7,%2 \n" + " l 0,0(6) \n" + " lhi 1,64 \n" + " sll 1,24 \n" + " or 0,1 \n" + " la 6,4(6) \n" + " l 2,0(6) \n" + " l 3,4(6) \n" + " la 6,8(6) \n" + " slr 1,1 \n" + "0: .long 0xb2ad0026 \n" + "1: brc 2,0b \n" + " ipm %0 \n" + " srl %0,28 \n" + " lr %1,1 \n" + "2: \n" + ".section .fixup,\"ax\" \n" + "3: \n" + " lhi %0,%h4 \n" + " bras 1,4f \n" + " .long 2b \n" + "4: \n" + " l 1,0(1) \n" + " br 1 \n" + ".previous \n" + ".section __ex_table,\"a\" \n" + " .align 4 \n" + " .long 0b,3b \n" + " .long 1b,3b \n" + ".previous" + :"=d" (ccode),"=d" (*stat) + :"d" (msg_len),"a" (msg_ext), "K" (DEV_SEN_EXCEPTION) + :"cc","0","1","2","3","6","7","memory"); +#endif + return ccode; +} + +static inline int +rec(int q_nr, int buff_l, unsigned char *rsp, unsigned char *id, + struct ap_status_word *st) +{ + int ccode; + + asm volatile +#ifdef __s390x__ + (" llgfr 0,%2 \n" + " lgr 3,%4 \n" + " lgr 6,%3 \n" + " llgfr 7,%5 \n" + " lghi 1,128 \n" + " sll 1,24 \n" + " or 0,1 \n" + " slgr 1,1 \n" + " lgr 2,1 \n" + " lgr 4,1 \n" + " lgr 5,1 \n" + "0: .long 0xb2ae0046 \n" + "1: brc 2,0b \n" + " brc 4,0b \n" + " ipm %0 \n" + " srl %0,28 \n" + " iihh %0,0 \n" + " iihl %0,0 \n" + " lgr %1,1 \n" + " st 4,0(3) \n" + " st 5,4(3) \n" + "2: \n" + ".section .fixup,\"ax\" \n" + "3: \n" + " lhi %0,%h6 \n" + " jg 2b \n" + ".previous \n" + ".section __ex_table,\"a\" \n" + " .align 8 \n" + " .quad 0b,3b \n" + " .quad 1b,3b \n" + ".previous" + :"=d"(ccode),"=d"(*st) + :"d" (q_nr), "d" (rsp), "d" (id), "d" (buff_l), "K" (DEV_REC_EXCEPTION) + :"cc","0","1","2","3","4","5","6","7","memory"); +#else + (" lr 0,%2 \n" + " lr 3,%4 \n" + " lr 6,%3 \n" + " lr 7,%5 \n" + " lhi 1,128 \n" + " sll 1,24 \n" + " or 0,1 \n" + " slr 1,1 \n" + " lr 2,1 \n" + " lr 4,1 \n" + " lr 5,1 \n" + "0: .long 0xb2ae0046 \n" + "1: brc 2,0b \n" + " brc 4,0b \n" + " ipm %0 \n" + " srl %0,28 \n" + " lr %1,1 \n" + " st 4,0(3) \n" + " st 5,4(3) \n" + "2: \n" + ".section .fixup,\"ax\" \n" + "3: \n" + " lhi %0,%h6 \n" + " bras 1,4f \n" + " .long 2b \n" + "4: \n" + " l 1,0(1) \n" + " br 1 \n" + ".previous \n" + ".section __ex_table,\"a\" \n" + " .align 4 \n" + " .long 0b,3b \n" + " .long 1b,3b \n" + ".previous" + :"=d"(ccode),"=d"(*st) + :"d" (q_nr), "d" (rsp), "d" (id), "d" (buff_l), "K" (DEV_REC_EXCEPTION) + :"cc","0","1","2","3","4","5","6","7","memory"); +#endif + return ccode; +} + +static inline void +itoLe2(int *i_p, unsigned char *lechars) +{ + *lechars = *((unsigned char *) i_p + sizeof(int) - 1); + *(lechars + 1) = *((unsigned char *) i_p + sizeof(int) - 2); +} + +static inline void +le2toI(unsigned char *lechars, int *i_p) +{ + unsigned char *ic_p; + *i_p = 0; + ic_p = (unsigned char *) i_p; + *(ic_p + 2) = *(lechars + 1); + *(ic_p + 3) = *(lechars); +} + +static inline int +is_empty(unsigned char *ptr, int len) +{ + return !memcmp(ptr, (unsigned char *) &static_pvt_me_key+60, len); +} + +enum hdstat +query_online(int deviceNr, int cdx, int resetNr, int *q_depth, int *dev_type) +{ + int q_nr, i, t_depth, t_dev_type; + enum devstat ccode; + struct ap_status_word stat_word; + enum hdstat stat; + int break_out; + + q_nr = (deviceNr << SKIP_BITL) + cdx; + stat = HD_BUSY; + ccode = testq(q_nr, &t_depth, &t_dev_type, &stat_word); + PDEBUG("ccode %d response_code %02X\n", ccode, stat_word.response_code); + break_out = 0; + for (i = 0; i < resetNr; i++) { + if (ccode > 3) { + PRINTKC("Exception testing device %d\n", i); + return HD_TSQ_EXCEPTION; + } + switch (ccode) { + case 0: + PDEBUG("t_dev_type %d\n", t_dev_type); + break_out = 1; + stat = HD_ONLINE; + *q_depth = t_depth + 1; + switch (t_dev_type) { + case OTHER_HW: + stat = HD_NOT_THERE; + *dev_type = NILDEV; + break; + case PCICA_HW: + *dev_type = PCICA; + break; + case PCICC_HW: + *dev_type = PCICC; + break; + case PCIXCC_HW: + *dev_type = PCIXCC_UNK; + break; + case CEX2C_HW: + *dev_type = CEX2C; + break; + default: + *dev_type = NILDEV; + break; + } + PDEBUG("available device %d: Q depth = %d, dev " + "type = %d, stat = %02X%02X%02X%02X\n", + deviceNr, *q_depth, *dev_type, + stat_word.q_stat_flags, + stat_word.response_code, + stat_word.reserved[0], + stat_word.reserved[1]); + break; + case 3: + switch (stat_word.response_code) { + case AP_RESPONSE_NORMAL: + stat = HD_ONLINE; + break_out = 1; + *q_depth = t_depth + 1; + *dev_type = t_dev_type; + PDEBUG("cc3, available device " + "%d: Q depth = %d, dev " + "type = %d, stat = " + "%02X%02X%02X%02X\n", + deviceNr, *q_depth, + *dev_type, + stat_word.q_stat_flags, + stat_word.response_code, + stat_word.reserved[0], + stat_word.reserved[1]); + break; + case AP_RESPONSE_Q_NOT_AVAIL: + stat = HD_NOT_THERE; + break_out = 1; + break; + case AP_RESPONSE_RESET_IN_PROGRESS: + PDEBUG("device %d in reset\n", + deviceNr); + break; + case AP_RESPONSE_DECONFIGURED: + stat = HD_DECONFIGURED; + break_out = 1; + break; + case AP_RESPONSE_CHECKSTOPPED: + stat = HD_CHECKSTOPPED; + break_out = 1; + break; + case AP_RESPONSE_BUSY: + PDEBUG("device %d busy\n", + deviceNr); + break; + default: + break; + } + break; + default: + stat = HD_NOT_THERE; + break_out = 1; + break; + } + if (break_out) + break; + + udelay(5); + + ccode = testq(q_nr, &t_depth, &t_dev_type, &stat_word); + } + return stat; +} + +enum devstat +reset_device(int deviceNr, int cdx, int resetNr) +{ + int q_nr, ccode = 0, dummy_qdepth, dummy_devType, i; + struct ap_status_word stat_word; + enum devstat stat; + int break_out; + + q_nr = (deviceNr << SKIP_BITL) + cdx; + stat = DEV_GONE; + ccode = resetq(q_nr, &stat_word); + if (ccode > 3) + return DEV_RSQ_EXCEPTION; + + break_out = 0; + for (i = 0; i < resetNr; i++) { + switch (ccode) { + case 0: + stat = DEV_ONLINE; + if (stat_word.q_stat_flags & AP_Q_STATUS_EMPTY) + break_out = 1; + break; + case 3: + switch (stat_word.response_code) { + case AP_RESPONSE_NORMAL: + stat = DEV_ONLINE; + if (stat_word.q_stat_flags & AP_Q_STATUS_EMPTY) + break_out = 1; + break; + case AP_RESPONSE_Q_NOT_AVAIL: + case AP_RESPONSE_DECONFIGURED: + case AP_RESPONSE_CHECKSTOPPED: + stat = DEV_GONE; + break_out = 1; + break; + case AP_RESPONSE_RESET_IN_PROGRESS: + case AP_RESPONSE_BUSY: + default: + break; + } + break; + default: + stat = DEV_GONE; + break_out = 1; + break; + } + if (break_out == 1) + break; + udelay(5); + + ccode = testq(q_nr, &dummy_qdepth, &dummy_devType, &stat_word); + if (ccode > 3) { + stat = DEV_TSQ_EXCEPTION; + break; + } + } + PDEBUG("Number of testq's needed for reset: %d\n", i); + + if (i >= resetNr) { + stat = DEV_GONE; + } + + return stat; +} + +#ifdef DEBUG_HYDRA_MSGS +static inline void +print_buffer(unsigned char *buffer, int bufflen) +{ + int i; + for (i = 0; i < bufflen; i += 16) { + PRINTK("%04X: %02X%02X%02X%02X %02X%02X%02X%02X " + "%02X%02X%02X%02X %02X%02X%02X%02X\n", i, + buffer[i+0], buffer[i+1], buffer[i+2], buffer[i+3], + buffer[i+4], buffer[i+5], buffer[i+6], buffer[i+7], + buffer[i+8], buffer[i+9], buffer[i+10], buffer[i+11], + buffer[i+12], buffer[i+13], buffer[i+14], buffer[i+15]); + } +} +#endif + +enum devstat +send_to_AP(int dev_nr, int cdx, int msg_len, unsigned char *msg_ext) +{ + struct ap_status_word stat_word; + enum devstat stat; + int ccode; + + ((struct request_msg_ext *) msg_ext)->q_nr = + (dev_nr << SKIP_BITL) + cdx; + PDEBUG("msg_len passed to sen: %d\n", msg_len); + PDEBUG("q number passed to sen: %02x%02x%02x%02x\n", + msg_ext[0], msg_ext[1], msg_ext[2], msg_ext[3]); + stat = DEV_GONE; + +#ifdef DEBUG_HYDRA_MSGS + PRINTK("Request header: %02X%02X%02X%02X %02X%02X%02X%02X " + "%02X%02X%02X%02X\n", + msg_ext[0], msg_ext[1], msg_ext[2], msg_ext[3], + msg_ext[4], msg_ext[5], msg_ext[6], msg_ext[7], + msg_ext[8], msg_ext[9], msg_ext[10], msg_ext[11]); + print_buffer(msg_ext+CALLER_HEADER, msg_len); +#endif + + ccode = sen(msg_len, msg_ext, &stat_word); + if (ccode > 3) + return DEV_SEN_EXCEPTION; + + PDEBUG("nq cc: %u, st: %02x%02x%02x%02x\n", + ccode, stat_word.q_stat_flags, stat_word.response_code, + stat_word.reserved[0], stat_word.reserved[1]); + switch (ccode) { + case 0: + stat = DEV_ONLINE; + break; + case 1: + stat = DEV_GONE; + break; + case 3: + switch (stat_word.response_code) { + case AP_RESPONSE_NORMAL: + stat = DEV_ONLINE; + break; + case AP_RESPONSE_Q_FULL: + stat = DEV_QUEUE_FULL; + break; + default: + stat = DEV_GONE; + break; + } + break; + default: + stat = DEV_GONE; + break; + } + + return stat; +} + +enum devstat +receive_from_AP(int dev_nr, int cdx, int resplen, unsigned char *resp, + unsigned char *psmid) +{ + int ccode; + struct ap_status_word stat_word; + enum devstat stat; + + memset(resp, 0x00, 8); + + ccode = rec((dev_nr << SKIP_BITL) + cdx, resplen, resp, psmid, + &stat_word); + if (ccode > 3) + return DEV_REC_EXCEPTION; + + PDEBUG("dq cc: %u, st: %02x%02x%02x%02x\n", + ccode, stat_word.q_stat_flags, stat_word.response_code, + stat_word.reserved[0], stat_word.reserved[1]); + + stat = DEV_GONE; + switch (ccode) { + case 0: + stat = DEV_ONLINE; +#ifdef DEBUG_HYDRA_MSGS + print_buffer(resp, resplen); +#endif + break; + case 3: + switch (stat_word.response_code) { + case AP_RESPONSE_NORMAL: + stat = DEV_ONLINE; + break; + case AP_RESPONSE_NO_PENDING_REPLY: + if (stat_word.q_stat_flags & AP_Q_STATUS_EMPTY) + stat = DEV_EMPTY; + else + stat = DEV_NO_WORK; + break; + case AP_RESPONSE_INDEX_TOO_BIG: + case AP_RESPONSE_NO_FIRST_PART: + case AP_RESPONSE_MESSAGE_TOO_BIG: + stat = DEV_BAD_MESSAGE; + break; + default: + break; + } + break; + default: + break; + } + + return stat; +} + +static inline int +pad_msg(unsigned char *buffer, int totalLength, int msgLength) +{ + int pad_len; + + for (pad_len = 0; pad_len < (totalLength - msgLength); pad_len++) + if (buffer[pad_len] != 0x00) + break; + pad_len -= 3; + if (pad_len < 8) + return SEN_PAD_ERROR; + + buffer[0] = 0x00; + buffer[1] = 0x02; + + memcpy(buffer+2, static_pad, pad_len); + + buffer[pad_len + 2] = 0x00; + + return 0; +} + +static inline int +is_common_public_key(unsigned char *key, int len) +{ + int i; + + for (i = 0; i < len; i++) + if (key[i]) + break; + key += i; + len -= i; + if (((len == 1) && (key[0] == 3)) || + ((len == 3) && (key[0] == 1) && (key[1] == 0) && (key[2] == 1))) + return 1; + + return 0; +} + +static int +ICAMEX_msg_to_type4MEX_msg(struct ica_rsa_modexpo *icaMex_p, int *z90cMsg_l_p, + union type4_msg *z90cMsg_p) +{ + int mod_len, msg_size, mod_tgt_len, exp_tgt_len, inp_tgt_len; + unsigned char *mod_tgt, *exp_tgt, *inp_tgt; + union type4_msg *tmp_type4_msg; + + mod_len = icaMex_p->inputdatalength; + + msg_size = ((mod_len <= 128) ? TYPE4_SME_LEN : TYPE4_LME_LEN) + + CALLER_HEADER; + + memset(z90cMsg_p, 0, msg_size); + + tmp_type4_msg = (union type4_msg *) + ((unsigned char *) z90cMsg_p + CALLER_HEADER); + + tmp_type4_msg->sme.header.msg_type_code = TYPE4_TYPE_CODE; + tmp_type4_msg->sme.header.request_code = TYPE4_REQU_CODE; + + if (mod_len <= 128) { + tmp_type4_msg->sme.header.msg_fmt = TYPE4_SME_FMT; + tmp_type4_msg->sme.header.msg_len = TYPE4_SME_LEN; + mod_tgt = tmp_type4_msg->sme.modulus; + mod_tgt_len = sizeof(tmp_type4_msg->sme.modulus); + exp_tgt = tmp_type4_msg->sme.exponent; + exp_tgt_len = sizeof(tmp_type4_msg->sme.exponent); + inp_tgt = tmp_type4_msg->sme.message; + inp_tgt_len = sizeof(tmp_type4_msg->sme.message); + } else { + tmp_type4_msg->lme.header.msg_fmt = TYPE4_LME_FMT; + tmp_type4_msg->lme.header.msg_len = TYPE4_LME_LEN; + mod_tgt = tmp_type4_msg->lme.modulus; + mod_tgt_len = sizeof(tmp_type4_msg->lme.modulus); + exp_tgt = tmp_type4_msg->lme.exponent; + exp_tgt_len = sizeof(tmp_type4_msg->lme.exponent); + inp_tgt = tmp_type4_msg->lme.message; + inp_tgt_len = sizeof(tmp_type4_msg->lme.message); + } + + mod_tgt += (mod_tgt_len - mod_len); + if (copy_from_user(mod_tgt, icaMex_p->n_modulus, mod_len)) + return SEN_RELEASED; + if (is_empty(mod_tgt, mod_len)) + return SEN_USER_ERROR; + exp_tgt += (exp_tgt_len - mod_len); + if (copy_from_user(exp_tgt, icaMex_p->b_key, mod_len)) + return SEN_RELEASED; + if (is_empty(exp_tgt, mod_len)) + return SEN_USER_ERROR; + inp_tgt += (inp_tgt_len - mod_len); + if (copy_from_user(inp_tgt, icaMex_p->inputdata, mod_len)) + return SEN_RELEASED; + if (is_empty(inp_tgt, mod_len)) + return SEN_USER_ERROR; + + *z90cMsg_l_p = msg_size - CALLER_HEADER; + + return 0; +} + +static int +ICACRT_msg_to_type4CRT_msg(struct ica_rsa_modexpo_crt *icaMsg_p, + int *z90cMsg_l_p, union type4_msg *z90cMsg_p) +{ + int mod_len, short_len, long_len, tmp_size, p_tgt_len, q_tgt_len, + dp_tgt_len, dq_tgt_len, u_tgt_len, inp_tgt_len; + unsigned char *p_tgt, *q_tgt, *dp_tgt, *dq_tgt, *u_tgt, *inp_tgt; + union type4_msg *tmp_type4_msg; + + mod_len = icaMsg_p->inputdatalength; + short_len = mod_len / 2; + long_len = mod_len / 2 + 8; + + tmp_size = ((mod_len <= 128) ? TYPE4_SCR_LEN : TYPE4_LCR_LEN) + + CALLER_HEADER; + + memset(z90cMsg_p, 0, tmp_size); + + tmp_type4_msg = (union type4_msg *) + ((unsigned char *) z90cMsg_p + CALLER_HEADER); + + tmp_type4_msg->scr.header.msg_type_code = TYPE4_TYPE_CODE; + tmp_type4_msg->scr.header.request_code = TYPE4_REQU_CODE; + if (mod_len <= 128) { + tmp_type4_msg->scr.header.msg_fmt = TYPE4_SCR_FMT; + tmp_type4_msg->scr.header.msg_len = TYPE4_SCR_LEN; + p_tgt = tmp_type4_msg->scr.p; + p_tgt_len = sizeof(tmp_type4_msg->scr.p); + q_tgt = tmp_type4_msg->scr.q; + q_tgt_len = sizeof(tmp_type4_msg->scr.q); + dp_tgt = tmp_type4_msg->scr.dp; + dp_tgt_len = sizeof(tmp_type4_msg->scr.dp); + dq_tgt = tmp_type4_msg->scr.dq; + dq_tgt_len = sizeof(tmp_type4_msg->scr.dq); + u_tgt = tmp_type4_msg->scr.u; + u_tgt_len = sizeof(tmp_type4_msg->scr.u); + inp_tgt = tmp_type4_msg->scr.message; + inp_tgt_len = sizeof(tmp_type4_msg->scr.message); + } else { + tmp_type4_msg->lcr.header.msg_fmt = TYPE4_LCR_FMT; + tmp_type4_msg->lcr.header.msg_len = TYPE4_LCR_LEN; + p_tgt = tmp_type4_msg->lcr.p; + p_tgt_len = sizeof(tmp_type4_msg->lcr.p); + q_tgt = tmp_type4_msg->lcr.q; + q_tgt_len = sizeof(tmp_type4_msg->lcr.q); + dp_tgt = tmp_type4_msg->lcr.dp; + dp_tgt_len = sizeof(tmp_type4_msg->lcr.dp); + dq_tgt = tmp_type4_msg->lcr.dq; + dq_tgt_len = sizeof(tmp_type4_msg->lcr.dq); + u_tgt = tmp_type4_msg->lcr.u; + u_tgt_len = sizeof(tmp_type4_msg->lcr.u); + inp_tgt = tmp_type4_msg->lcr.message; + inp_tgt_len = sizeof(tmp_type4_msg->lcr.message); + } + + p_tgt += (p_tgt_len - long_len); + if (copy_from_user(p_tgt, icaMsg_p->np_prime, long_len)) + return SEN_RELEASED; + if (is_empty(p_tgt, long_len)) + return SEN_USER_ERROR; + q_tgt += (q_tgt_len - short_len); + if (copy_from_user(q_tgt, icaMsg_p->nq_prime, short_len)) + return SEN_RELEASED; + if (is_empty(q_tgt, short_len)) + return SEN_USER_ERROR; + dp_tgt += (dp_tgt_len - long_len); + if (copy_from_user(dp_tgt, icaMsg_p->bp_key, long_len)) + return SEN_RELEASED; + if (is_empty(dp_tgt, long_len)) + return SEN_USER_ERROR; + dq_tgt += (dq_tgt_len - short_len); + if (copy_from_user(dq_tgt, icaMsg_p->bq_key, short_len)) + return SEN_RELEASED; + if (is_empty(dq_tgt, short_len)) + return SEN_USER_ERROR; + u_tgt += (u_tgt_len - long_len); + if (copy_from_user(u_tgt, icaMsg_p->u_mult_inv, long_len)) + return SEN_RELEASED; + if (is_empty(u_tgt, long_len)) + return SEN_USER_ERROR; + inp_tgt += (inp_tgt_len - mod_len); + if (copy_from_user(inp_tgt, icaMsg_p->inputdata, mod_len)) + return SEN_RELEASED; + if (is_empty(inp_tgt, mod_len)) + return SEN_USER_ERROR; + + *z90cMsg_l_p = tmp_size - CALLER_HEADER; + + return 0; +} + +static int +ICAMEX_msg_to_type6MEX_de_msg(struct ica_rsa_modexpo *icaMsg_p, int cdx, + int *z90cMsg_l_p, struct type6_msg *z90cMsg_p) +{ + int mod_len, vud_len, tmp_size, total_CPRB_len, parmBlock_l; + unsigned char *temp; + struct type6_hdr *tp6Hdr_p; + struct CPRB *cprb_p; + struct cca_private_ext_ME *key_p; + static int deprecated_msg_count = 0; + + mod_len = icaMsg_p->inputdatalength; + tmp_size = FIXED_TYPE6_ME_LEN + mod_len; + total_CPRB_len = tmp_size - sizeof(struct type6_hdr); + parmBlock_l = total_CPRB_len - sizeof(struct CPRB); + tmp_size = 4*((tmp_size + 3)/4) + CALLER_HEADER; + + memset(z90cMsg_p, 0, tmp_size); + + temp = (unsigned char *)z90cMsg_p + CALLER_HEADER; + memcpy(temp, &static_type6_hdr, sizeof(struct type6_hdr)); + tp6Hdr_p = (struct type6_hdr *)temp; + tp6Hdr_p->ToCardLen1 = 4*((total_CPRB_len+3)/4); + tp6Hdr_p->FromCardLen1 = RESPONSE_CPRB_SIZE; + + temp += sizeof(struct type6_hdr); + memcpy(temp, &static_cprb, sizeof(struct CPRB)); + cprb_p = (struct CPRB *) temp; + cprb_p->usage_domain[0]= (unsigned char)cdx; + itoLe2(&parmBlock_l, cprb_p->req_parml); + itoLe2((int *)&(tp6Hdr_p->FromCardLen1), cprb_p->rpl_parml); + + temp += sizeof(struct CPRB); + memcpy(temp, &static_pkd_function_and_rules, + sizeof(struct function_and_rules_block)); + + temp += sizeof(struct function_and_rules_block); + vud_len = 2 + icaMsg_p->inputdatalength; + itoLe2(&vud_len, temp); + + temp += 2; + if (copy_from_user(temp, icaMsg_p->inputdata, mod_len)) + return SEN_RELEASED; + if (is_empty(temp, mod_len)) + return SEN_USER_ERROR; + + temp += mod_len; + memcpy(temp, &static_T6_keyBlock_hdr, sizeof(struct T6_keyBlock_hdr)); + + temp += sizeof(struct T6_keyBlock_hdr); + memcpy(temp, &static_pvt_me_key, sizeof(struct cca_private_ext_ME)); + key_p = (struct cca_private_ext_ME *)temp; + temp = key_p->pvtMESec.exponent + sizeof(key_p->pvtMESec.exponent) + - mod_len; + if (copy_from_user(temp, icaMsg_p->b_key, mod_len)) + return SEN_RELEASED; + if (is_empty(temp, mod_len)) + return SEN_USER_ERROR; + + if (is_common_public_key(temp, mod_len)) { + if (deprecated_msg_count < 20) { + PRINTK("Common public key used for modex decrypt\n"); + deprecated_msg_count++; + if (deprecated_msg_count == 20) + PRINTK("No longer issuing messages about common" + " public key for modex decrypt.\n"); + } + return SEN_NOT_AVAIL; + } + + temp = key_p->pvtMESec.modulus + sizeof(key_p->pvtMESec.modulus) + - mod_len; + if (copy_from_user(temp, icaMsg_p->n_modulus, mod_len)) + return SEN_RELEASED; + if (is_empty(temp, mod_len)) + return SEN_USER_ERROR; + + key_p->pubMESec.modulus_bit_len = 8 * mod_len; + + *z90cMsg_l_p = tmp_size - CALLER_HEADER; + + return 0; +} + +static int +ICAMEX_msg_to_type6MEX_en_msg(struct ica_rsa_modexpo *icaMsg_p, int cdx, + int *z90cMsg_l_p, struct type6_msg *z90cMsg_p) +{ + int mod_len, vud_len, exp_len, key_len; + int pad_len, tmp_size, total_CPRB_len, parmBlock_l, i; + unsigned char *temp_exp, *exp_p, *temp; + struct type6_hdr *tp6Hdr_p; + struct CPRB *cprb_p; + struct cca_public_key *key_p; + struct T6_keyBlock_hdr *keyb_p; + + temp_exp = kmalloc(256, GFP_KERNEL); + if (!temp_exp) + return EGETBUFF; + mod_len = icaMsg_p->inputdatalength; + if (copy_from_user(temp_exp, icaMsg_p->b_key, mod_len)) { + kfree(temp_exp); + return SEN_RELEASED; + } + if (is_empty(temp_exp, mod_len)) { + kfree(temp_exp); + return SEN_USER_ERROR; + } + + exp_p = temp_exp; + for (i = 0; i < mod_len; i++) + if (exp_p[i]) + break; + if (i >= mod_len) { + kfree(temp_exp); + return SEN_USER_ERROR; + } + + exp_len = mod_len - i; + exp_p += i; + + PDEBUG("exp_len after computation: %08x\n", exp_len); + tmp_size = FIXED_TYPE6_ME_EN_LEN + 2 * mod_len + exp_len; + total_CPRB_len = tmp_size - sizeof(struct type6_hdr); + parmBlock_l = total_CPRB_len - sizeof(struct CPRB); + tmp_size = 4*((tmp_size + 3)/4) + CALLER_HEADER; + + vud_len = 2 + mod_len; + memset(z90cMsg_p, 0, tmp_size); + + temp = (unsigned char *)z90cMsg_p + CALLER_HEADER; + memcpy(temp, &static_type6_hdr, sizeof(struct type6_hdr)); + tp6Hdr_p = (struct type6_hdr *)temp; + tp6Hdr_p->ToCardLen1 = 4*((total_CPRB_len+3)/4); + tp6Hdr_p->FromCardLen1 = RESPONSE_CPRB_SIZE; + memcpy(tp6Hdr_p->function_code, static_PKE_function_code, + sizeof(static_PKE_function_code)); + temp += sizeof(struct type6_hdr); + memcpy(temp, &static_cprb, sizeof(struct CPRB)); + cprb_p = (struct CPRB *) temp; + cprb_p->usage_domain[0]= (unsigned char)cdx; + itoLe2((int *)&(tp6Hdr_p->FromCardLen1), cprb_p->rpl_parml); + temp += sizeof(struct CPRB); + memcpy(temp, &static_pke_function_and_rules, + sizeof(struct function_and_rules_block)); + temp += sizeof(struct function_and_rules_block); + temp += 2; + if (copy_from_user(temp, icaMsg_p->inputdata, mod_len)) { + kfree(temp_exp); + return SEN_RELEASED; + } + if (is_empty(temp, mod_len)) { + kfree(temp_exp); + return SEN_USER_ERROR; + } + if ((temp[0] != 0x00) || (temp[1] != 0x02)) { + kfree(temp_exp); + return SEN_NOT_AVAIL; + } + for (i = 2; i < mod_len; i++) + if (temp[i] == 0x00) + break; + if ((i < 9) || (i > (mod_len - 2))) { + kfree(temp_exp); + return SEN_NOT_AVAIL; + } + pad_len = i + 1; + vud_len = mod_len - pad_len; + memmove(temp, temp+pad_len, vud_len); + temp -= 2; + vud_len += 2; + itoLe2(&vud_len, temp); + temp += (vud_len); + keyb_p = (struct T6_keyBlock_hdr *)temp; + temp += sizeof(struct T6_keyBlock_hdr); + memcpy(temp, &static_public_key, sizeof(static_public_key)); + key_p = (struct cca_public_key *)temp; + temp = key_p->pubSec.exponent; + memcpy(temp, exp_p, exp_len); + kfree(temp_exp); + temp += exp_len; + if (copy_from_user(temp, icaMsg_p->n_modulus, mod_len)) + return SEN_RELEASED; + if (is_empty(temp, mod_len)) + return SEN_USER_ERROR; + key_p->pubSec.modulus_bit_len = 8 * mod_len; + key_p->pubSec.modulus_byte_len = mod_len; + key_p->pubSec.exponent_len = exp_len; + key_p->pubSec.section_length = CALLER_HEADER + mod_len + exp_len; + key_len = key_p->pubSec.section_length + sizeof(struct cca_token_hdr); + key_p->pubHdr.token_length = key_len; + key_len += 4; + itoLe2(&key_len, keyb_p->ulen); + key_len += 2; + itoLe2(&key_len, keyb_p->blen); + parmBlock_l -= pad_len; + itoLe2(&parmBlock_l, cprb_p->req_parml); + *z90cMsg_l_p = tmp_size - CALLER_HEADER; + + return 0; +} + +static int +ICACRT_msg_to_type6CRT_msg(struct ica_rsa_modexpo_crt *icaMsg_p, int cdx, + int *z90cMsg_l_p, struct type6_msg *z90cMsg_p) +{ + int mod_len, vud_len, tmp_size, total_CPRB_len, parmBlock_l, short_len; + int long_len, pad_len, keyPartsLen, tmp_l; + unsigned char *tgt_p, *temp; + struct type6_hdr *tp6Hdr_p; + struct CPRB *cprb_p; + struct cca_token_hdr *keyHdr_p; + struct cca_pvt_ext_CRT_sec *pvtSec_p; + struct cca_public_sec *pubSec_p; + + mod_len = icaMsg_p->inputdatalength; + short_len = mod_len / 2; + long_len = 8 + short_len; + keyPartsLen = 3 * long_len + 2 * short_len; + pad_len = (8 - (keyPartsLen % 8)) % 8; + keyPartsLen += pad_len + mod_len; + tmp_size = FIXED_TYPE6_CR_LEN + keyPartsLen + mod_len; + total_CPRB_len = tmp_size - sizeof(struct type6_hdr); + parmBlock_l = total_CPRB_len - sizeof(struct CPRB); + vud_len = 2 + mod_len; + tmp_size = 4*((tmp_size + 3)/4) + CALLER_HEADER; + + memset(z90cMsg_p, 0, tmp_size); + tgt_p = (unsigned char *)z90cMsg_p + CALLER_HEADER; + memcpy(tgt_p, &static_type6_hdr, sizeof(struct type6_hdr)); + tp6Hdr_p = (struct type6_hdr *)tgt_p; + tp6Hdr_p->ToCardLen1 = 4*((total_CPRB_len+3)/4); + tp6Hdr_p->FromCardLen1 = RESPONSE_CPRB_SIZE; + tgt_p += sizeof(struct type6_hdr); + cprb_p = (struct CPRB *) tgt_p; + memcpy(tgt_p, &static_cprb, sizeof(struct CPRB)); + cprb_p->usage_domain[0]= *((unsigned char *)(&(cdx))+3); + itoLe2(&parmBlock_l, cprb_p->req_parml); + memcpy(cprb_p->rpl_parml, cprb_p->req_parml, + sizeof(cprb_p->req_parml)); + tgt_p += sizeof(struct CPRB); + memcpy(tgt_p, &static_pkd_function_and_rules, + sizeof(struct function_and_rules_block)); + tgt_p += sizeof(struct function_and_rules_block); + itoLe2(&vud_len, tgt_p); + tgt_p += 2; + if (copy_from_user(tgt_p, icaMsg_p->inputdata, mod_len)) + return SEN_RELEASED; + if (is_empty(tgt_p, mod_len)) + return SEN_USER_ERROR; + tgt_p += mod_len; + tmp_l = sizeof(struct T6_keyBlock_hdr) + sizeof(struct cca_token_hdr) + + sizeof(struct cca_pvt_ext_CRT_sec) + 0x0F + keyPartsLen; + itoLe2(&tmp_l, tgt_p); + temp = tgt_p + 2; + tmp_l -= 2; + itoLe2(&tmp_l, temp); + tgt_p += sizeof(struct T6_keyBlock_hdr); + keyHdr_p = (struct cca_token_hdr *)tgt_p; + keyHdr_p->token_identifier = CCA_TKN_HDR_ID_EXT; + tmp_l -= 4; + keyHdr_p->token_length = tmp_l; + tgt_p += sizeof(struct cca_token_hdr); + pvtSec_p = (struct cca_pvt_ext_CRT_sec *)tgt_p; + pvtSec_p->section_identifier = CCA_PVT_EXT_CRT_SEC_ID_PVT; + pvtSec_p->section_length = + sizeof(struct cca_pvt_ext_CRT_sec) + keyPartsLen; + pvtSec_p->key_format = CCA_PVT_EXT_CRT_SEC_FMT_CL; + pvtSec_p->key_use_flags[0] = CCA_PVT_USAGE_ALL; + pvtSec_p->p_len = long_len; + pvtSec_p->q_len = short_len; + pvtSec_p->dp_len = long_len; + pvtSec_p->dq_len = short_len; + pvtSec_p->u_len = long_len; + pvtSec_p->mod_len = mod_len; + pvtSec_p->pad_len = pad_len; + tgt_p += sizeof(struct cca_pvt_ext_CRT_sec); + if (copy_from_user(tgt_p, icaMsg_p->np_prime, long_len)) + return SEN_RELEASED; + if (is_empty(tgt_p, long_len)) + return SEN_USER_ERROR; + tgt_p += long_len; + if (copy_from_user(tgt_p, icaMsg_p->nq_prime, short_len)) + return SEN_RELEASED; + if (is_empty(tgt_p, short_len)) + return SEN_USER_ERROR; + tgt_p += short_len; + if (copy_from_user(tgt_p, icaMsg_p->bp_key, long_len)) + return SEN_RELEASED; + if (is_empty(tgt_p, long_len)) + return SEN_USER_ERROR; + tgt_p += long_len; + if (copy_from_user(tgt_p, icaMsg_p->bq_key, short_len)) + return SEN_RELEASED; + if (is_empty(tgt_p, short_len)) + return SEN_USER_ERROR; + tgt_p += short_len; + if (copy_from_user(tgt_p, icaMsg_p->u_mult_inv, long_len)) + return SEN_RELEASED; + if (is_empty(tgt_p, long_len)) + return SEN_USER_ERROR; + tgt_p += long_len; + tgt_p += pad_len; + memset(tgt_p, 0xFF, mod_len); + tgt_p += mod_len; + memcpy(tgt_p, &static_cca_pub_sec, sizeof(struct cca_public_sec)); + pubSec_p = (struct cca_public_sec *) tgt_p; + pubSec_p->modulus_bit_len = 8 * mod_len; + *z90cMsg_l_p = tmp_size - CALLER_HEADER; + + return 0; +} + +static int +ICAMEX_msg_to_type6MEX_msgX(struct ica_rsa_modexpo *icaMsg_p, int cdx, + int *z90cMsg_l_p, struct type6_msg *z90cMsg_p, + int dev_type) +{ + int mod_len, exp_len, vud_len, tmp_size, total_CPRB_len, parmBlock_l; + int key_len, i; + unsigned char *temp_exp, *tgt_p, *temp, *exp_p; + struct type6_hdr *tp6Hdr_p; + struct CPRBX *cprbx_p; + struct cca_public_key *key_p; + struct T6_keyBlock_hdrX *keyb_p; + + temp_exp = kmalloc(256, GFP_KERNEL); + if (!temp_exp) + return EGETBUFF; + mod_len = icaMsg_p->inputdatalength; + if (copy_from_user(temp_exp, icaMsg_p->b_key, mod_len)) { + kfree(temp_exp); + return SEN_RELEASED; + } + if (is_empty(temp_exp, mod_len)) { + kfree(temp_exp); + return SEN_USER_ERROR; + } + exp_p = temp_exp; + for (i = 0; i < mod_len; i++) + if (exp_p[i]) + break; + if (i >= mod_len) { + kfree(temp_exp); + return SEN_USER_ERROR; + } + exp_len = mod_len - i; + exp_p += i; + PDEBUG("exp_len after computation: %08x\n", exp_len); + tmp_size = FIXED_TYPE6_ME_EN_LENX + 2 * mod_len + exp_len; + total_CPRB_len = tmp_size - sizeof(struct type6_hdr); + parmBlock_l = total_CPRB_len - sizeof(struct CPRBX); + tmp_size = tmp_size + CALLER_HEADER; + vud_len = 2 + mod_len; + memset(z90cMsg_p, 0, tmp_size); + tgt_p = (unsigned char *)z90cMsg_p + CALLER_HEADER; + memcpy(tgt_p, &static_type6_hdrX, sizeof(struct type6_hdr)); + tp6Hdr_p = (struct type6_hdr *)tgt_p; + tp6Hdr_p->ToCardLen1 = total_CPRB_len; + tp6Hdr_p->FromCardLen1 = RESPONSE_CPRBX_SIZE; + memcpy(tp6Hdr_p->function_code, static_PKE_function_code, + sizeof(static_PKE_function_code)); + tgt_p += sizeof(struct type6_hdr); + memcpy(tgt_p, &static_cprbx, sizeof(struct CPRBX)); + cprbx_p = (struct CPRBX *) tgt_p; + cprbx_p->domain = (unsigned short)cdx; + cprbx_p->rpl_msgbl = RESPONSE_CPRBX_SIZE; + tgt_p += sizeof(struct CPRBX); + if (dev_type == PCIXCC_MCL2) + memcpy(tgt_p, &static_pke_function_and_rulesX_MCL2, + sizeof(struct function_and_rules_block)); + else + memcpy(tgt_p, &static_pke_function_and_rulesX, + sizeof(struct function_and_rules_block)); + tgt_p += sizeof(struct function_and_rules_block); + + tgt_p += 2; + if (copy_from_user(tgt_p, icaMsg_p->inputdata, mod_len)) { + kfree(temp_exp); + return SEN_RELEASED; + } + if (is_empty(tgt_p, mod_len)) { + kfree(temp_exp); + return SEN_USER_ERROR; + } + tgt_p -= 2; + *((short *)tgt_p) = (short) vud_len; + tgt_p += vud_len; + keyb_p = (struct T6_keyBlock_hdrX *)tgt_p; + tgt_p += sizeof(struct T6_keyBlock_hdrX); + memcpy(tgt_p, &static_public_key, sizeof(static_public_key)); + key_p = (struct cca_public_key *)tgt_p; + temp = key_p->pubSec.exponent; + memcpy(temp, exp_p, exp_len); + kfree(temp_exp); + temp += exp_len; + if (copy_from_user(temp, icaMsg_p->n_modulus, mod_len)) + return SEN_RELEASED; + if (is_empty(temp, mod_len)) + return SEN_USER_ERROR; + key_p->pubSec.modulus_bit_len = 8 * mod_len; + key_p->pubSec.modulus_byte_len = mod_len; + key_p->pubSec.exponent_len = exp_len; + key_p->pubSec.section_length = CALLER_HEADER + mod_len + exp_len; + key_len = key_p->pubSec.section_length + sizeof(struct cca_token_hdr); + key_p->pubHdr.token_length = key_len; + key_len += 4; + keyb_p->ulen = (unsigned short)key_len; + key_len += 2; + keyb_p->blen = (unsigned short)key_len; + cprbx_p->req_parml = parmBlock_l; + *z90cMsg_l_p = tmp_size - CALLER_HEADER; + + return 0; +} + +static int +ICACRT_msg_to_type6CRT_msgX(struct ica_rsa_modexpo_crt *icaMsg_p, int cdx, + int *z90cMsg_l_p, struct type6_msg *z90cMsg_p, + int dev_type) +{ + int mod_len, vud_len, tmp_size, total_CPRB_len, parmBlock_l, short_len; + int long_len, pad_len, keyPartsLen, tmp_l; + unsigned char *tgt_p, *temp; + struct type6_hdr *tp6Hdr_p; + struct CPRBX *cprbx_p; + struct cca_token_hdr *keyHdr_p; + struct cca_pvt_ext_CRT_sec *pvtSec_p; + struct cca_public_sec *pubSec_p; + + mod_len = icaMsg_p->inputdatalength; + short_len = mod_len / 2; + long_len = 8 + short_len; + keyPartsLen = 3 * long_len + 2 * short_len; + pad_len = (8 - (keyPartsLen % 8)) % 8; + keyPartsLen += pad_len + mod_len; + tmp_size = FIXED_TYPE6_CR_LENX + keyPartsLen + mod_len; + total_CPRB_len = tmp_size - sizeof(struct type6_hdr); + parmBlock_l = total_CPRB_len - sizeof(struct CPRBX); + vud_len = 2 + mod_len; + tmp_size = tmp_size + CALLER_HEADER; + memset(z90cMsg_p, 0, tmp_size); + tgt_p = (unsigned char *)z90cMsg_p + CALLER_HEADER; + memcpy(tgt_p, &static_type6_hdrX, sizeof(struct type6_hdr)); + tp6Hdr_p = (struct type6_hdr *)tgt_p; + tp6Hdr_p->ToCardLen1 = total_CPRB_len; + tp6Hdr_p->FromCardLen1 = RESPONSE_CPRBX_SIZE; + tgt_p += sizeof(struct type6_hdr); + cprbx_p = (struct CPRBX *) tgt_p; + memcpy(tgt_p, &static_cprbx, sizeof(struct CPRBX)); + cprbx_p->domain = (unsigned short)cdx; + cprbx_p->req_parml = parmBlock_l; + cprbx_p->rpl_msgbl = parmBlock_l; + tgt_p += sizeof(struct CPRBX); + if (dev_type == PCIXCC_MCL2) + memcpy(tgt_p, &static_pkd_function_and_rulesX_MCL2, + sizeof(struct function_and_rules_block)); + else + memcpy(tgt_p, &static_pkd_function_and_rulesX, + sizeof(struct function_and_rules_block)); + tgt_p += sizeof(struct function_and_rules_block); + *((short *)tgt_p) = (short) vud_len; + tgt_p += 2; + if (copy_from_user(tgt_p, icaMsg_p->inputdata, mod_len)) + return SEN_RELEASED; + if (is_empty(tgt_p, mod_len)) + return SEN_USER_ERROR; + tgt_p += mod_len; + tmp_l = sizeof(struct T6_keyBlock_hdr) + sizeof(struct cca_token_hdr) + + sizeof(struct cca_pvt_ext_CRT_sec) + 0x0F + keyPartsLen; + *((short *)tgt_p) = (short) tmp_l; + temp = tgt_p + 2; + tmp_l -= 2; + *((short *)temp) = (short) tmp_l; + tgt_p += sizeof(struct T6_keyBlock_hdr); + keyHdr_p = (struct cca_token_hdr *)tgt_p; + keyHdr_p->token_identifier = CCA_TKN_HDR_ID_EXT; + tmp_l -= 4; + keyHdr_p->token_length = tmp_l; + tgt_p += sizeof(struct cca_token_hdr); + pvtSec_p = (struct cca_pvt_ext_CRT_sec *)tgt_p; + pvtSec_p->section_identifier = CCA_PVT_EXT_CRT_SEC_ID_PVT; + pvtSec_p->section_length = + sizeof(struct cca_pvt_ext_CRT_sec) + keyPartsLen; + pvtSec_p->key_format = CCA_PVT_EXT_CRT_SEC_FMT_CL; + pvtSec_p->key_use_flags[0] = CCA_PVT_USAGE_ALL; + pvtSec_p->p_len = long_len; + pvtSec_p->q_len = short_len; + pvtSec_p->dp_len = long_len; + pvtSec_p->dq_len = short_len; + pvtSec_p->u_len = long_len; + pvtSec_p->mod_len = mod_len; + pvtSec_p->pad_len = pad_len; + tgt_p += sizeof(struct cca_pvt_ext_CRT_sec); + if (copy_from_user(tgt_p, icaMsg_p->np_prime, long_len)) + return SEN_RELEASED; + if (is_empty(tgt_p, long_len)) + return SEN_USER_ERROR; + tgt_p += long_len; + if (copy_from_user(tgt_p, icaMsg_p->nq_prime, short_len)) + return SEN_RELEASED; + if (is_empty(tgt_p, short_len)) + return SEN_USER_ERROR; + tgt_p += short_len; + if (copy_from_user(tgt_p, icaMsg_p->bp_key, long_len)) + return SEN_RELEASED; + if (is_empty(tgt_p, long_len)) + return SEN_USER_ERROR; + tgt_p += long_len; + if (copy_from_user(tgt_p, icaMsg_p->bq_key, short_len)) + return SEN_RELEASED; + if (is_empty(tgt_p, short_len)) + return SEN_USER_ERROR; + tgt_p += short_len; + if (copy_from_user(tgt_p, icaMsg_p->u_mult_inv, long_len)) + return SEN_RELEASED; + if (is_empty(tgt_p, long_len)) + return SEN_USER_ERROR; + tgt_p += long_len; + tgt_p += pad_len; + memset(tgt_p, 0xFF, mod_len); + tgt_p += mod_len; + memcpy(tgt_p, &static_cca_pub_sec, sizeof(struct cca_public_sec)); + pubSec_p = (struct cca_public_sec *) tgt_p; + pubSec_p->modulus_bit_len = 8 * mod_len; + *z90cMsg_l_p = tmp_size - CALLER_HEADER; + + return 0; +} + +int +convert_request(unsigned char *buffer, int func, unsigned short function, + int cdx, int dev_type, int *msg_l_p, unsigned char *msg_p) +{ + if (dev_type == PCICA) { + if (func == ICARSACRT) + return ICACRT_msg_to_type4CRT_msg( + (struct ica_rsa_modexpo_crt *) buffer, + msg_l_p, (union type4_msg *) msg_p); + else + return ICAMEX_msg_to_type4MEX_msg( + (struct ica_rsa_modexpo *) buffer, + msg_l_p, (union type4_msg *) msg_p); + } + if (dev_type == PCICC) { + if (func == ICARSACRT) + return ICACRT_msg_to_type6CRT_msg( + (struct ica_rsa_modexpo_crt *) buffer, + cdx, msg_l_p, (struct type6_msg *)msg_p); + if (function == PCI_FUNC_KEY_ENCRYPT) + return ICAMEX_msg_to_type6MEX_en_msg( + (struct ica_rsa_modexpo *) buffer, + cdx, msg_l_p, (struct type6_msg *) msg_p); + else + return ICAMEX_msg_to_type6MEX_de_msg( + (struct ica_rsa_modexpo *) buffer, + cdx, msg_l_p, (struct type6_msg *) msg_p); + } + if ((dev_type == PCIXCC_MCL2) || + (dev_type == PCIXCC_MCL3) || + (dev_type == CEX2C)) { + if (func == ICARSACRT) + return ICACRT_msg_to_type6CRT_msgX( + (struct ica_rsa_modexpo_crt *) buffer, + cdx, msg_l_p, (struct type6_msg *) msg_p, + dev_type); + else + return ICAMEX_msg_to_type6MEX_msgX( + (struct ica_rsa_modexpo *) buffer, + cdx, msg_l_p, (struct type6_msg *) msg_p, + dev_type); + } + + return 0; +} + +int ext_bitlens_msg_count = 0; +static inline void +unset_ext_bitlens(void) +{ + if (!ext_bitlens_msg_count) { + PRINTK("Unable to use coprocessors for extended bitlengths. " + "Using PCICAs (if present) for extended bitlengths. " + "This is not an error.\n"); + ext_bitlens_msg_count++; + } + ext_bitlens = 0; +} + +int +convert_response(unsigned char *response, unsigned char *buffer, + int *respbufflen_p, unsigned char *resp_buff) +{ + struct ica_rsa_modexpo *icaMsg_p = (struct ica_rsa_modexpo *) buffer; + struct type82_hdr *t82h_p = (struct type82_hdr *) response; + struct type84_hdr *t84h_p = (struct type84_hdr *) response; + struct type86_fmt2_msg *t86m_p = (struct type86_fmt2_msg *) response; + int reply_code, service_rc, service_rs, src_l; + unsigned char *src_p, *tgt_p; + struct CPRB *cprb_p; + struct CPRBX *cprbx_p; + + src_p = 0; + reply_code = 0; + service_rc = 0; + service_rs = 0; + src_l = 0; + switch (t82h_p->type) { + case TYPE82_RSP_CODE: + reply_code = t82h_p->reply_code; + src_p = (unsigned char *)t82h_p; + PRINTK("Hardware error: Type 82 Message Header: " + "%02x%02x%02x%02x%02x%02x%02x%02x\n", + src_p[0], src_p[1], src_p[2], src_p[3], + src_p[4], src_p[5], src_p[6], src_p[7]); + break; + case TYPE84_RSP_CODE: + src_l = icaMsg_p->outputdatalength; + src_p = response + (int)t84h_p->len - src_l; + break; + case TYPE86_RSP_CODE: + reply_code = t86m_p->hdr.reply_code; + if (reply_code != 0) + break; + cprb_p = (struct CPRB *) + (response + sizeof(struct type86_fmt2_msg)); + cprbx_p = (struct CPRBX *) cprb_p; + if (cprb_p->cprb_ver_id != 0x02) { + le2toI(cprb_p->ccp_rtcode, &service_rc); + if (service_rc != 0) { + le2toI(cprb_p->ccp_rscode, &service_rs); + if ((service_rc == 8) && (service_rs == 66)) + PDEBUG("Bad block format on PCICC\n"); + else if ((service_rc == 8) && (service_rs == 770)) { + PDEBUG("Invalid key length on PCICC\n"); + unset_ext_bitlens(); + return REC_USE_PCICA; + } + else if ((service_rc == 8) && (service_rs == 783)) { + PDEBUG("Extended bitlengths not enabled" + "on PCICC\n"); + unset_ext_bitlens(); + return REC_USE_PCICA; + } + else + PRINTK("service rc/rs: %d/%d\n", + service_rc, service_rs); + return REC_OPERAND_INV; + } + src_p = (unsigned char *)cprb_p + sizeof(struct CPRB); + src_p += 4; + le2toI(src_p, &src_l); + src_l -= 2; + src_p += 2; + } else { + service_rc = (int)cprbx_p->ccp_rtcode; + if (service_rc != 0) { + service_rs = (int) cprbx_p->ccp_rscode; + if ((service_rc == 8) && (service_rs == 66)) + PDEBUG("Bad block format on PCXICC\n"); + else if ((service_rc == 8) && (service_rs == 770)) { + PDEBUG("Invalid key length on PCIXCC\n"); + unset_ext_bitlens(); + return REC_USE_PCICA; + } + else if ((service_rc == 8) && (service_rs == 783)) { + PDEBUG("Extended bitlengths not enabled" + "on PCIXCC\n"); + unset_ext_bitlens(); + return REC_USE_PCICA; + } + else + PRINTK("service rc/rs: %d/%d\n", + service_rc, service_rs); + return REC_OPERAND_INV; + } + src_p = (unsigned char *) + cprbx_p + sizeof(struct CPRBX); + src_p += 4; + src_l = (int)(*((short *) src_p)); + src_l -= 2; + src_p += 2; + } + break; + default: + return REC_BAD_MESSAGE; + } + + if (reply_code) + switch (reply_code) { + case REPLY_ERROR_OPERAND_INVALID: + return REC_OPERAND_INV; + case REPLY_ERROR_OPERAND_SIZE: + return REC_OPERAND_SIZE; + case REPLY_ERROR_EVEN_MOD_IN_OPND: + return REC_EVEN_MOD; + case REPLY_ERROR_MESSAGE_TYPE: + return WRONG_DEVICE_TYPE; + case REPLY_ERROR_TRANSPORT_FAIL: + PRINTKW("Transport failed (APFS = %02X%02X%02X%02X)\n", + t86m_p->apfs[0], t86m_p->apfs[1], + t86m_p->apfs[2], t86m_p->apfs[3]); + return REC_HARDWAR_ERR; + default: + PRINTKW("reply code = %d\n", reply_code); + return REC_HARDWAR_ERR; + } + + if (service_rc != 0) + return REC_OPERAND_INV; + + if ((src_l > icaMsg_p->outputdatalength) || + (src_l > RESPBUFFSIZE) || + (src_l <= 0)) + return REC_OPERAND_SIZE; + + PDEBUG("Length returned = %d\n", src_l); + tgt_p = resp_buff + icaMsg_p->outputdatalength - src_l; + memcpy(tgt_p, src_p, src_l); + if ((t82h_p->type == TYPE86_RSP_CODE) && (resp_buff < tgt_p)) { + memset(resp_buff, 0, icaMsg_p->outputdatalength - src_l); + if (pad_msg(resp_buff, icaMsg_p->outputdatalength, src_l)) + return REC_INVALID_PAD; + } + *respbufflen_p = icaMsg_p->outputdatalength; + if (*respbufflen_p == 0) + PRINTK("Zero *respbufflen_p\n"); + + return 0; +} + diff --git a/drivers/s390/crypto/z90main.c b/drivers/s390/crypto/z90main.c new file mode 100644 index 000000000000..a98c00c02559 --- /dev/null +++ b/drivers/s390/crypto/z90main.c @@ -0,0 +1,3563 @@ +/* + * linux/drivers/s390/crypto/z90main.c + * + * z90crypt 1.3.2 + * + * Copyright (C) 2001, 2004 IBM Corporation + * Author(s): Robert Burroughs (burrough@us.ibm.com) + * Eric Rossman (edrossma@us.ibm.com) + * + * Hotplug & misc device support: Jochen Roehrig (roehrig@de.ibm.com) + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2, or (at your option) + * any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + */ + +#include // copy_(from|to)_user +#include +#include +#include // mdelay +#include +#include // for tasklets +#include +#include +#include +#include +#include +#include +#include +#include "z90crypt.h" +#include "z90common.h" +#ifndef Z90CRYPT_USE_HOTPLUG +#include +#endif + +#define VERSION_CODE(vers, rel, seq) (((vers)<<16) | ((rel)<<8) | (seq)) +#if LINUX_VERSION_CODE < VERSION_CODE(2,4,0) /* version < 2.4 */ +# error "This kernel is too old: not supported" +#endif +#if LINUX_VERSION_CODE > VERSION_CODE(2,7,0) /* version > 2.6 */ +# error "This kernel is too recent: not supported by this file" +#endif + +#define VERSION_Z90MAIN_C "$Revision: 1.57 $" + +static char z90main_version[] __initdata = + "z90main.o (" VERSION_Z90MAIN_C "/" + VERSION_Z90COMMON_H "/" VERSION_Z90CRYPT_H ")"; + +extern char z90hardware_version[]; + +/** + * Defaults that may be modified. + */ + +#ifndef Z90CRYPT_USE_HOTPLUG +/** + * You can specify a different minor at compile time. + */ +#ifndef Z90CRYPT_MINOR +#define Z90CRYPT_MINOR MISC_DYNAMIC_MINOR +#endif +#else +/** + * You can specify a different major at compile time. + */ +#ifndef Z90CRYPT_MAJOR +#define Z90CRYPT_MAJOR 0 +#endif +#endif + +/** + * You can specify a different domain at compile time or on the insmod + * command line. + */ +#ifndef DOMAIN_INDEX +#define DOMAIN_INDEX -1 +#endif + +/** + * This is the name under which the device is registered in /proc/modules. + */ +#define REG_NAME "z90crypt" + +/** + * Cleanup should run every CLEANUPTIME seconds and should clean up requests + * older than CLEANUPTIME seconds in the past. + */ +#ifndef CLEANUPTIME +#define CLEANUPTIME 20 +#endif + +/** + * Config should run every CONFIGTIME seconds + */ +#ifndef CONFIGTIME +#define CONFIGTIME 30 +#endif + +/** + * The first execution of the config task should take place + * immediately after initialization + */ +#ifndef INITIAL_CONFIGTIME +#define INITIAL_CONFIGTIME 1 +#endif + +/** + * Reader should run every READERTIME milliseconds + * With the 100Hz patch for s390, z90crypt can lock the system solid while + * under heavy load. We'll try to avoid that. + */ +#ifndef READERTIME +#if HZ > 1000 +#define READERTIME 2 +#else +#define READERTIME 10 +#endif +#endif + +/** + * turn long device array index into device pointer + */ +#define LONG2DEVPTR(ndx) (z90crypt.device_p[(ndx)]) + +/** + * turn short device array index into long device array index + */ +#define SHRT2LONG(ndx) (z90crypt.overall_device_x.device_index[(ndx)]) + +/** + * turn short device array index into device pointer + */ +#define SHRT2DEVPTR(ndx) LONG2DEVPTR(SHRT2LONG(ndx)) + +/** + * Status for a work-element + */ +#define STAT_DEFAULT 0x00 // request has not been processed + +#define STAT_ROUTED 0x80 // bit 7: requests get routed to specific device + // else, device is determined each write +#define STAT_FAILED 0x40 // bit 6: this bit is set if the request failed + // before being sent to the hardware. +#define STAT_WRITTEN 0x30 // bits 5-4: work to be done, not sent to device +// 0x20 // UNUSED state +#define STAT_READPEND 0x10 // bits 5-4: work done, we're returning data now +#define STAT_NOWORK 0x00 // bits off: no work on any queue +#define STAT_RDWRMASK 0x30 // mask for bits 5-4 + +/** + * Macros to check the status RDWRMASK + */ +#define CHK_RDWRMASK(statbyte) ((statbyte) & STAT_RDWRMASK) +#define SET_RDWRMASK(statbyte, newval) \ + {(statbyte) &= ~STAT_RDWRMASK; (statbyte) |= newval;} + +/** + * Audit Trail. Progress of a Work element + * audit[0]: Unless noted otherwise, these bits are all set by the process + */ +#define FP_COPYFROM 0x80 // Caller's buffer has been copied to work element +#define FP_BUFFREQ 0x40 // Low Level buffer requested +#define FP_BUFFGOT 0x20 // Low Level buffer obtained +#define FP_SENT 0x10 // Work element sent to a crypto device + // (may be set by process or by reader task) +#define FP_PENDING 0x08 // Work element placed on pending queue + // (may be set by process or by reader task) +#define FP_REQUEST 0x04 // Work element placed on request queue +#define FP_ASLEEP 0x02 // Work element about to sleep +#define FP_AWAKE 0x01 // Work element has been awakened + +/** + * audit[1]: These bits are set by the reader task and/or the cleanup task + */ +#define FP_NOTPENDING 0x80 // Work element removed from pending queue +#define FP_AWAKENING 0x40 // Caller about to be awakened +#define FP_TIMEDOUT 0x20 // Caller timed out +#define FP_RESPSIZESET 0x10 // Response size copied to work element +#define FP_RESPADDRCOPIED 0x08 // Response address copied to work element +#define FP_RESPBUFFCOPIED 0x04 // Response buffer copied to work element +#define FP_REMREQUEST 0x02 // Work element removed from request queue +#define FP_SIGNALED 0x01 // Work element was awakened by a signal + +/** + * audit[2]: unused + */ + +/** + * state of the file handle in private_data.status + */ +#define STAT_OPEN 0 +#define STAT_CLOSED 1 + +/** + * PID() expands to the process ID of the current process + */ +#define PID() (current->pid) + +/** + * Selected Constants. The number of APs and the number of devices + */ +#ifndef Z90CRYPT_NUM_APS +#define Z90CRYPT_NUM_APS 64 +#endif +#ifndef Z90CRYPT_NUM_DEVS +#define Z90CRYPT_NUM_DEVS Z90CRYPT_NUM_APS +#endif + +/** + * Buffer size for receiving responses. The maximum Response Size + * is actually the maximum request size, since in an error condition + * the request itself may be returned unchanged. + */ +#define MAX_RESPONSE_SIZE 0x0000077C + +/** + * A count and status-byte mask + */ +struct status { + int st_count; // # of enabled devices + int disabled_count; // # of disabled devices + int user_disabled_count; // # of devices disabled via proc fs + unsigned char st_mask[Z90CRYPT_NUM_APS]; // current status mask +}; + +/** + * The array of device indexes is a mechanism for fast indexing into + * a long (and sparse) array. For instance, if APs 3, 9 and 47 are + * installed, z90CDeviceIndex[0] is 3, z90CDeviceIndex[1] is 9, and + * z90CDeviceIndex[2] is 47. + */ +struct device_x { + int device_index[Z90CRYPT_NUM_DEVS]; +}; + +/** + * All devices are arranged in a single array: 64 APs + */ +struct device { + int dev_type; // PCICA, PCICC, PCIXCC_MCL2, + // PCIXCC_MCL3, CEX2C + enum devstat dev_stat; // current device status + int dev_self_x; // Index in array + int disabled; // Set when device is in error + int user_disabled; // Set when device is disabled by user + int dev_q_depth; // q depth + unsigned char * dev_resp_p; // Response buffer address + int dev_resp_l; // Response Buffer length + int dev_caller_count; // Number of callers + int dev_total_req_cnt; // # requests for device since load + struct list_head dev_caller_list; // List of callers +}; + +/** + * There's a struct status and a struct device_x for each device type. + */ +struct hdware_block { + struct status hdware_mask; + struct status type_mask[Z90CRYPT_NUM_TYPES]; + struct device_x type_x_addr[Z90CRYPT_NUM_TYPES]; + unsigned char device_type_array[Z90CRYPT_NUM_APS]; +}; + +/** + * z90crypt is the topmost data structure in the hierarchy. + */ +struct z90crypt { + int max_count; // Nr of possible crypto devices + struct status mask; + int q_depth_array[Z90CRYPT_NUM_DEVS]; + int dev_type_array[Z90CRYPT_NUM_DEVS]; + struct device_x overall_device_x; // array device indexes + struct device * device_p[Z90CRYPT_NUM_DEVS]; + int terminating; + int domain_established;// TRUE: domain has been found + int cdx; // Crypto Domain Index + int len; // Length of this data structure + struct hdware_block *hdware_info; +}; + +/** + * An array of these structures is pointed to from dev_caller + * The length of the array depends on the device type. For APs, + * there are 8. + * + * The caller buffer is allocated to the user at OPEN. At WRITE, + * it contains the request; at READ, the response. The function + * send_to_crypto_device converts the request to device-dependent + * form and use the caller's OPEN-allocated buffer for the response. + */ +struct caller { + int caller_buf_l; // length of original request + unsigned char * caller_buf_p; // Original request on WRITE + int caller_dev_dep_req_l; // len device dependent request + unsigned char * caller_dev_dep_req_p; // Device dependent form + unsigned char caller_id[8]; // caller-supplied message id + struct list_head caller_liste; + unsigned char caller_dev_dep_req[MAX_RESPONSE_SIZE]; +}; + +/** + * Function prototypes from z90hardware.c + */ +enum hdstat query_online(int, int, int, int *, int *); +enum devstat reset_device(int, int, int); +enum devstat send_to_AP(int, int, int, unsigned char *); +enum devstat receive_from_AP(int, int, int, unsigned char *, unsigned char *); +int convert_request(unsigned char *, int, short, int, int, int *, + unsigned char *); +int convert_response(unsigned char *, unsigned char *, int *, unsigned char *); + +/** + * Low level function prototypes + */ +static int create_z90crypt(int *); +static int refresh_z90crypt(int *); +static int find_crypto_devices(struct status *); +static int create_crypto_device(int); +static int destroy_crypto_device(int); +static void destroy_z90crypt(void); +static int refresh_index_array(struct status *, struct device_x *); +static int probe_device_type(struct device *); +static int probe_PCIXCC_type(struct device *); + +/** + * proc fs definitions + */ +static struct proc_dir_entry *z90crypt_entry; + +/** + * data structures + */ + +/** + * work_element.opener points back to this structure + */ +struct priv_data { + pid_t opener_pid; + unsigned char status; // 0: open 1: closed +}; + +/** + * A work element is allocated for each request + */ +struct work_element { + struct priv_data *priv_data; + pid_t pid; + int devindex; // index of device processing this w_e + // (If request did not specify device, + // -1 until placed onto a queue) + int devtype; + struct list_head liste; // used for requestq and pendingq + char buffer[128]; // local copy of user request + int buff_size; // size of the buffer for the request + char resp_buff[RESPBUFFSIZE]; + int resp_buff_size; + char __user * resp_addr; // address of response in user space + unsigned int funccode; // function code of request + wait_queue_head_t waitq; + unsigned long requestsent; // time at which the request was sent + atomic_t alarmrung; // wake-up signal + unsigned char caller_id[8]; // pid + counter, for this w_e + unsigned char status[1]; // bits to mark status of the request + unsigned char audit[3]; // record of work element's progress + unsigned char * requestptr; // address of request buffer + int retcode; // return code of request +}; + +/** + * High level function prototypes + */ +static int z90crypt_open(struct inode *, struct file *); +static int z90crypt_release(struct inode *, struct file *); +static ssize_t z90crypt_read(struct file *, char __user *, size_t, loff_t *); +static ssize_t z90crypt_write(struct file *, const char __user *, + size_t, loff_t *); +static int z90crypt_ioctl(struct inode *, struct file *, + unsigned int, unsigned long); + +static void z90crypt_reader_task(unsigned long); +static void z90crypt_schedule_reader_task(unsigned long); +static void z90crypt_config_task(unsigned long); +static void z90crypt_cleanup_task(unsigned long); + +static int z90crypt_status(char *, char **, off_t, int, int *, void *); +static int z90crypt_status_write(struct file *, const char __user *, + unsigned long, void *); + +/** + * Hotplug support + */ + +#ifdef Z90CRYPT_USE_HOTPLUG +#define Z90CRYPT_HOTPLUG_ADD 1 +#define Z90CRYPT_HOTPLUG_REMOVE 2 + +static void z90crypt_hotplug_event(int, int, int); +#endif + +/** + * Storage allocated at initialization and used throughout the life of + * this insmod + */ +#ifdef Z90CRYPT_USE_HOTPLUG +static int z90crypt_major = Z90CRYPT_MAJOR; +#endif + +static int domain = DOMAIN_INDEX; +static struct z90crypt z90crypt; +static int quiesce_z90crypt; +static spinlock_t queuespinlock; +static struct list_head request_list; +static int requestq_count; +static struct list_head pending_list; +static int pendingq_count; + +static struct tasklet_struct reader_tasklet; +static struct timer_list reader_timer; +static struct timer_list config_timer; +static struct timer_list cleanup_timer; +static atomic_t total_open; +static atomic_t z90crypt_step; + +static struct file_operations z90crypt_fops = { + .owner = THIS_MODULE, + .read = z90crypt_read, + .write = z90crypt_write, + .ioctl = z90crypt_ioctl, + .open = z90crypt_open, + .release = z90crypt_release +}; + +#ifndef Z90CRYPT_USE_HOTPLUG +static struct miscdevice z90crypt_misc_device = { + .minor = Z90CRYPT_MINOR, + .name = DEV_NAME, + .fops = &z90crypt_fops, + .devfs_name = DEV_NAME +}; +#endif + +/** + * Documentation values. + */ +MODULE_AUTHOR("zSeries Linux Crypto Team: Robert H. Burroughs, Eric D. Rossman" + "and Jochen Roehrig"); +MODULE_DESCRIPTION("zSeries Linux Cryptographic Coprocessor device driver, " + "Copyright 2001, 2004 IBM Corporation"); +MODULE_LICENSE("GPL"); +module_param(domain, int, 0); +MODULE_PARM_DESC(domain, "domain index for device"); + +#ifdef CONFIG_COMPAT +/** + * ioctl32 conversion routines + */ +struct ica_rsa_modexpo_32 { // For 32-bit callers + compat_uptr_t inputdata; + unsigned int inputdatalength; + compat_uptr_t outputdata; + unsigned int outputdatalength; + compat_uptr_t b_key; + compat_uptr_t n_modulus; +}; + +static int +trans_modexpo32(unsigned int fd, unsigned int cmd, unsigned long arg, + struct file *file) +{ + struct ica_rsa_modexpo_32 __user *mex32u = compat_ptr(arg); + struct ica_rsa_modexpo_32 mex32k; + struct ica_rsa_modexpo __user *mex64; + int ret = 0; + unsigned int i; + + if (!access_ok(VERIFY_WRITE, mex32u, sizeof(struct ica_rsa_modexpo_32))) + return -EFAULT; + mex64 = compat_alloc_user_space(sizeof(struct ica_rsa_modexpo)); + if (!access_ok(VERIFY_WRITE, mex64, sizeof(struct ica_rsa_modexpo))) + return -EFAULT; + if (copy_from_user(&mex32k, mex32u, sizeof(struct ica_rsa_modexpo_32))) + return -EFAULT; + if (__put_user(compat_ptr(mex32k.inputdata), &mex64->inputdata) || + __put_user(mex32k.inputdatalength, &mex64->inputdatalength) || + __put_user(compat_ptr(mex32k.outputdata), &mex64->outputdata) || + __put_user(mex32k.outputdatalength, &mex64->outputdatalength) || + __put_user(compat_ptr(mex32k.b_key), &mex64->b_key) || + __put_user(compat_ptr(mex32k.n_modulus), &mex64->n_modulus)) + return -EFAULT; + ret = sys_ioctl(fd, cmd, (unsigned long)mex64); + if (!ret) + if (__get_user(i, &mex64->outputdatalength) || + __put_user(i, &mex32u->outputdatalength)) + ret = -EFAULT; + return ret; +} + +struct ica_rsa_modexpo_crt_32 { // For 32-bit callers + compat_uptr_t inputdata; + unsigned int inputdatalength; + compat_uptr_t outputdata; + unsigned int outputdatalength; + compat_uptr_t bp_key; + compat_uptr_t bq_key; + compat_uptr_t np_prime; + compat_uptr_t nq_prime; + compat_uptr_t u_mult_inv; +}; + +static int +trans_modexpo_crt32(unsigned int fd, unsigned int cmd, unsigned long arg, + struct file *file) +{ + struct ica_rsa_modexpo_crt_32 __user *crt32u = compat_ptr(arg); + struct ica_rsa_modexpo_crt_32 crt32k; + struct ica_rsa_modexpo_crt __user *crt64; + int ret = 0; + unsigned int i; + + if (!access_ok(VERIFY_WRITE, crt32u, + sizeof(struct ica_rsa_modexpo_crt_32))) + return -EFAULT; + crt64 = compat_alloc_user_space(sizeof(struct ica_rsa_modexpo_crt)); + if (!access_ok(VERIFY_WRITE, crt64, sizeof(struct ica_rsa_modexpo_crt))) + return -EFAULT; + if (copy_from_user(&crt32k, crt32u, + sizeof(struct ica_rsa_modexpo_crt_32))) + return -EFAULT; + if (__put_user(compat_ptr(crt32k.inputdata), &crt64->inputdata) || + __put_user(crt32k.inputdatalength, &crt64->inputdatalength) || + __put_user(compat_ptr(crt32k.outputdata), &crt64->outputdata) || + __put_user(crt32k.outputdatalength, &crt64->outputdatalength) || + __put_user(compat_ptr(crt32k.bp_key), &crt64->bp_key) || + __put_user(compat_ptr(crt32k.bq_key), &crt64->bq_key) || + __put_user(compat_ptr(crt32k.np_prime), &crt64->np_prime) || + __put_user(compat_ptr(crt32k.nq_prime), &crt64->nq_prime) || + __put_user(compat_ptr(crt32k.u_mult_inv), &crt64->u_mult_inv)) + ret = -EFAULT; + if (!ret) + ret = sys_ioctl(fd, cmd, (unsigned long)crt64); + if (!ret) + if (__get_user(i, &crt64->outputdatalength) || + __put_user(i, &crt32u->outputdatalength)) + ret = -EFAULT; + return ret; +} + +static int compatible_ioctls[] = { + ICAZ90STATUS, Z90QUIESCE, Z90STAT_TOTALCOUNT, Z90STAT_PCICACOUNT, + Z90STAT_PCICCCOUNT, Z90STAT_PCIXCCCOUNT, Z90STAT_PCIXCCMCL2COUNT, + Z90STAT_PCIXCCMCL3COUNT, Z90STAT_CEX2CCOUNT, Z90STAT_REQUESTQ_COUNT, + Z90STAT_PENDINGQ_COUNT, Z90STAT_TOTALOPEN_COUNT, Z90STAT_DOMAIN_INDEX, + Z90STAT_STATUS_MASK, Z90STAT_QDEPTH_MASK, Z90STAT_PERDEV_REQCNT, +}; + +static void z90_unregister_ioctl32s(void) +{ + int i; + + unregister_ioctl32_conversion(ICARSAMODEXPO); + unregister_ioctl32_conversion(ICARSACRT); + + for(i = 0; i < ARRAY_SIZE(compatible_ioctls); i++) + unregister_ioctl32_conversion(compatible_ioctls[i]); +} + +static int z90_register_ioctl32s(void) +{ + int result, i; + + result = register_ioctl32_conversion(ICARSAMODEXPO, trans_modexpo32); + if (result == -EBUSY) { + unregister_ioctl32_conversion(ICARSAMODEXPO); + result = register_ioctl32_conversion(ICARSAMODEXPO, + trans_modexpo32); + } + if (result) + return result; + result = register_ioctl32_conversion(ICARSACRT, trans_modexpo_crt32); + if (result == -EBUSY) { + unregister_ioctl32_conversion(ICARSACRT); + result = register_ioctl32_conversion(ICARSACRT, + trans_modexpo_crt32); + } + if (result) + return result; + + for(i = 0; i < ARRAY_SIZE(compatible_ioctls); i++) { + result = register_ioctl32_conversion(compatible_ioctls[i], 0); + if (result == -EBUSY) { + unregister_ioctl32_conversion(compatible_ioctls[i]); + result = register_ioctl32_conversion( + compatible_ioctls[i], 0); + } + if (result) + return result; + } + return 0; +} +#else // !CONFIG_COMPAT +static inline void z90_unregister_ioctl32s(void) +{ +} + +static inline int z90_register_ioctl32s(void) +{ + return 0; +} +#endif + +/** + * The module initialization code. + */ +static int __init +z90crypt_init_module(void) +{ + int result, nresult; + struct proc_dir_entry *entry; + + PDEBUG("PID %d\n", PID()); + + if ((domain < -1) || (domain > 15)) { + PRINTKW("Invalid param: domain = %d. Not loading.\n", domain); + return -EINVAL; + } + +#ifndef Z90CRYPT_USE_HOTPLUG + /* Register as misc device with given minor (or get a dynamic one). */ + result = misc_register(&z90crypt_misc_device); + if (result < 0) { + PRINTKW(KERN_ERR "misc_register (minor %d) failed with %d\n", + z90crypt_misc_device.minor, result); + return result; + } +#else + /* Register the major (or get a dynamic one). */ + result = register_chrdev(z90crypt_major, REG_NAME, &z90crypt_fops); + if (result < 0) { + PRINTKW("register_chrdev (major %d) failed with %d.\n", + z90crypt_major, result); + return result; + } + + if (z90crypt_major == 0) + z90crypt_major = result; +#endif + + PDEBUG("Registered " DEV_NAME " with result %d\n", result); + + result = create_z90crypt(&domain); + if (result != 0) { + PRINTKW("create_z90crypt (domain index %d) failed with %d.\n", + domain, result); + result = -ENOMEM; + goto init_module_cleanup; + } + + if (result == 0) { + PRINTKN("Version %d.%d.%d loaded, built on %s %s\n", + z90crypt_VERSION, z90crypt_RELEASE, z90crypt_VARIANT, + __DATE__, __TIME__); + PRINTKN("%s\n", z90main_version); + PRINTKN("%s\n", z90hardware_version); + PDEBUG("create_z90crypt (domain index %d) successful.\n", + domain); + } else + PRINTK("No devices at startup\n"); + +#ifdef Z90CRYPT_USE_HOTPLUG + /* generate hotplug event for device node generation */ + z90crypt_hotplug_event(z90crypt_major, 0, Z90CRYPT_HOTPLUG_ADD); +#endif + + /* Initialize globals. */ + spin_lock_init(&queuespinlock); + + INIT_LIST_HEAD(&pending_list); + pendingq_count = 0; + + INIT_LIST_HEAD(&request_list); + requestq_count = 0; + + quiesce_z90crypt = 0; + + atomic_set(&total_open, 0); + atomic_set(&z90crypt_step, 0); + + /* Set up the cleanup task. */ + init_timer(&cleanup_timer); + cleanup_timer.function = z90crypt_cleanup_task; + cleanup_timer.data = 0; + cleanup_timer.expires = jiffies + (CLEANUPTIME * HZ); + add_timer(&cleanup_timer); + + /* Set up the proc file system */ + entry = create_proc_entry("driver/z90crypt", 0644, 0); + if (entry) { + entry->nlink = 1; + entry->data = 0; + entry->read_proc = z90crypt_status; + entry->write_proc = z90crypt_status_write; + } + else + PRINTK("Couldn't create z90crypt proc entry\n"); + z90crypt_entry = entry; + + /* Set up the configuration task. */ + init_timer(&config_timer); + config_timer.function = z90crypt_config_task; + config_timer.data = 0; + config_timer.expires = jiffies + (INITIAL_CONFIGTIME * HZ); + add_timer(&config_timer); + + /* Set up the reader task */ + tasklet_init(&reader_tasklet, z90crypt_reader_task, 0); + init_timer(&reader_timer); + reader_timer.function = z90crypt_schedule_reader_task; + reader_timer.data = 0; + reader_timer.expires = jiffies + (READERTIME * HZ / 1000); + add_timer(&reader_timer); + + if ((result = z90_register_ioctl32s())) + goto init_module_cleanup; + + return 0; // success + +init_module_cleanup: + z90_unregister_ioctl32s(); + +#ifndef Z90CRYPT_USE_HOTPLUG + if ((nresult = misc_deregister(&z90crypt_misc_device))) + PRINTK("misc_deregister failed with %d.\n", nresult); + else + PDEBUG("misc_deregister successful.\n"); +#else + if ((nresult = unregister_chrdev(z90crypt_major, REG_NAME))) + PRINTK("unregister_chrdev failed with %d.\n", nresult); + else + PDEBUG("unregister_chrdev successful.\n"); +#endif + + return result; // failure +} + +/** + * The module termination code + */ +static void __exit +z90crypt_cleanup_module(void) +{ + int nresult; + + PDEBUG("PID %d\n", PID()); + + z90_unregister_ioctl32s(); + + remove_proc_entry("driver/z90crypt", 0); + +#ifndef Z90CRYPT_USE_HOTPLUG + if ((nresult = misc_deregister(&z90crypt_misc_device))) + PRINTK("misc_deregister failed with %d.\n", nresult); + else + PDEBUG("misc_deregister successful.\n"); +#else + z90crypt_hotplug_event(z90crypt_major, 0, Z90CRYPT_HOTPLUG_REMOVE); + + if ((nresult = unregister_chrdev(z90crypt_major, REG_NAME))) + PRINTK("unregister_chrdev failed with %d.\n", nresult); + else + PDEBUG("unregister_chrdev successful.\n"); +#endif + + /* Remove the tasks */ + tasklet_kill(&reader_tasklet); + del_timer(&reader_timer); + del_timer(&config_timer); + del_timer(&cleanup_timer); + + destroy_z90crypt(); + + PRINTKN("Unloaded.\n"); +} + +/** + * Functions running under a process id + * + * The I/O functions: + * z90crypt_open + * z90crypt_release + * z90crypt_read + * z90crypt_write + * z90crypt_ioctl + * z90crypt_status + * z90crypt_status_write + * disable_card + * enable_card + * scan_char + * scan_string + * + * Helper functions: + * z90crypt_rsa + * z90crypt_prepare + * z90crypt_send + * z90crypt_process_results + * + */ +static int +z90crypt_open(struct inode *inode, struct file *filp) +{ + struct priv_data *private_data_p; + + if (quiesce_z90crypt) + return -EQUIESCE; + + private_data_p = kmalloc(sizeof(struct priv_data), GFP_KERNEL); + if (!private_data_p) { + PRINTK("Memory allocate failed\n"); + return -ENOMEM; + } + + memset((void *)private_data_p, 0, sizeof(struct priv_data)); + private_data_p->status = STAT_OPEN; + private_data_p->opener_pid = PID(); + filp->private_data = private_data_p; + atomic_inc(&total_open); + + return 0; +} + +static int +z90crypt_release(struct inode *inode, struct file *filp) +{ + struct priv_data *private_data_p = filp->private_data; + + PDEBUG("PID %d (filp %p)\n", PID(), filp); + + private_data_p->status = STAT_CLOSED; + memset(private_data_p, 0, sizeof(struct priv_data)); + kfree(private_data_p); + atomic_dec(&total_open); + + return 0; +} + +/* + * there are two read functions, of which compile options will choose one + * without USE_GET_RANDOM_BYTES + * => read() always returns -EPERM; + * otherwise + * => read() uses get_random_bytes() kernel function + */ +#ifndef USE_GET_RANDOM_BYTES +/** + * z90crypt_read will not be supported beyond z90crypt 1.3.1 + */ +static ssize_t +z90crypt_read(struct file *filp, char __user *buf, size_t count, loff_t *f_pos) +{ + PDEBUG("filp %p (PID %d)\n", filp, PID()); + return -EPERM; +} +#else // we want to use get_random_bytes +/** + * read() just returns a string of random bytes. Since we have no way + * to generate these cryptographically, we just execute get_random_bytes + * for the length specified. + */ +#include +static ssize_t +z90crypt_read(struct file *filp, char __user *buf, size_t count, loff_t *f_pos) +{ + unsigned char *temp_buff; + + PDEBUG("filp %p (PID %d)\n", filp, PID()); + + if (quiesce_z90crypt) + return -EQUIESCE; + if (count < 0) { + PRINTK("Requested random byte count negative: %ld\n", count); + return -EINVAL; + } + if (count > RESPBUFFSIZE) { + PDEBUG("count[%d] > RESPBUFFSIZE", count); + return -EINVAL; + } + if (count == 0) + return 0; + temp_buff = kmalloc(RESPBUFFSIZE, GFP_KERNEL); + if (!temp_buff) { + PRINTK("Memory allocate failed\n"); + return -ENOMEM; + } + get_random_bytes(temp_buff, count); + + if (copy_to_user(buf, temp_buff, count) != 0) { + kfree(temp_buff); + return -EFAULT; + } + kfree(temp_buff); + return count; +} +#endif + +/** + * Write is is not allowed + */ +static ssize_t +z90crypt_write(struct file *filp, const char __user *buf, size_t count, loff_t *f_pos) +{ + PDEBUG("filp %p (PID %d)\n", filp, PID()); + return -EPERM; +} + +/** + * New status functions + */ +static inline int +get_status_totalcount(void) +{ + return z90crypt.hdware_info->hdware_mask.st_count; +} + +static inline int +get_status_PCICAcount(void) +{ + return z90crypt.hdware_info->type_mask[PCICA].st_count; +} + +static inline int +get_status_PCICCcount(void) +{ + return z90crypt.hdware_info->type_mask[PCICC].st_count; +} + +static inline int +get_status_PCIXCCcount(void) +{ + return z90crypt.hdware_info->type_mask[PCIXCC_MCL2].st_count + + z90crypt.hdware_info->type_mask[PCIXCC_MCL3].st_count; +} + +static inline int +get_status_PCIXCCMCL2count(void) +{ + return z90crypt.hdware_info->type_mask[PCIXCC_MCL2].st_count; +} + +static inline int +get_status_PCIXCCMCL3count(void) +{ + return z90crypt.hdware_info->type_mask[PCIXCC_MCL3].st_count; +} + +static inline int +get_status_CEX2Ccount(void) +{ + return z90crypt.hdware_info->type_mask[CEX2C].st_count; +} + +static inline int +get_status_requestq_count(void) +{ + return requestq_count; +} + +static inline int +get_status_pendingq_count(void) +{ + return pendingq_count; +} + +static inline int +get_status_totalopen_count(void) +{ + return atomic_read(&total_open); +} + +static inline int +get_status_domain_index(void) +{ + return z90crypt.cdx; +} + +static inline unsigned char * +get_status_status_mask(unsigned char status[Z90CRYPT_NUM_APS]) +{ + int i, ix; + + memcpy(status, z90crypt.hdware_info->device_type_array, + Z90CRYPT_NUM_APS); + + for (i = 0; i < get_status_totalcount(); i++) { + ix = SHRT2LONG(i); + if (LONG2DEVPTR(ix)->user_disabled) + status[ix] = 0x0d; + } + + return status; +} + +static inline unsigned char * +get_status_qdepth_mask(unsigned char qdepth[Z90CRYPT_NUM_APS]) +{ + int i, ix; + + memset(qdepth, 0, Z90CRYPT_NUM_APS); + + for (i = 0; i < get_status_totalcount(); i++) { + ix = SHRT2LONG(i); + qdepth[ix] = LONG2DEVPTR(ix)->dev_caller_count; + } + + return qdepth; +} + +static inline unsigned int * +get_status_perdevice_reqcnt(unsigned int reqcnt[Z90CRYPT_NUM_APS]) +{ + int i, ix; + + memset(reqcnt, 0, Z90CRYPT_NUM_APS * sizeof(int)); + + for (i = 0; i < get_status_totalcount(); i++) { + ix = SHRT2LONG(i); + reqcnt[ix] = LONG2DEVPTR(ix)->dev_total_req_cnt; + } + + return reqcnt; +} + +static inline void +init_work_element(struct work_element *we_p, + struct priv_data *priv_data, pid_t pid) +{ + int step; + + we_p->requestptr = (unsigned char *)we_p + sizeof(struct work_element); + /* Come up with a unique id for this caller. */ + step = atomic_inc_return(&z90crypt_step); + memcpy(we_p->caller_id+0, (void *) &pid, sizeof(pid)); + memcpy(we_p->caller_id+4, (void *) &step, sizeof(step)); + we_p->pid = pid; + we_p->priv_data = priv_data; + we_p->status[0] = STAT_DEFAULT; + we_p->audit[0] = 0x00; + we_p->audit[1] = 0x00; + we_p->audit[2] = 0x00; + we_p->resp_buff_size = 0; + we_p->retcode = 0; + we_p->devindex = -1; + we_p->devtype = -1; + atomic_set(&we_p->alarmrung, 0); + init_waitqueue_head(&we_p->waitq); + INIT_LIST_HEAD(&(we_p->liste)); +} + +static inline int +allocate_work_element(struct work_element **we_pp, + struct priv_data *priv_data_p, pid_t pid) +{ + struct work_element *we_p; + + we_p = (struct work_element *) get_zeroed_page(GFP_KERNEL); + if (!we_p) + return -ENOMEM; + init_work_element(we_p, priv_data_p, pid); + *we_pp = we_p; + return 0; +} + +static inline void +remove_device(struct device *device_p) +{ + if (!device_p || (device_p->disabled != 0)) + return; + device_p->disabled = 1; + z90crypt.hdware_info->type_mask[device_p->dev_type].disabled_count++; + z90crypt.hdware_info->hdware_mask.disabled_count++; +} + +/** + * Bitlength limits for each card + * + * There are new MCLs which allow more bitlengths. See the table for details. + * The MCL must be applied and the newer bitlengths enabled for these to work. + * + * Card Type Old limit New limit + * PCICC 512-1024 512-2048 + * PCIXCC_MCL2 512-2048 no change (applying this MCL == card is MCL3+) + * PCIXCC_MCL3 512-2048 128-2048 + * CEX2C 512-2048 128-2048 + * + * ext_bitlens (extended bitlengths) is a global, since you should not apply an + * MCL to just one card in a machine. We assume, at first, that all cards have + * these capabilities. + */ +int ext_bitlens = 1; // This is global +#define PCIXCC_MIN_MOD_SIZE 16 // 128 bits +#define OLD_PCIXCC_MIN_MOD_SIZE 64 // 512 bits +#define PCICC_MIN_MOD_SIZE 64 // 512 bits +#define OLD_PCICC_MAX_MOD_SIZE 128 // 1024 bits +#define MAX_MOD_SIZE 256 // 2048 bits + +static inline int +select_device_type(int *dev_type_p, int bytelength) +{ + static int count = 0; + int PCICA_avail, PCIXCC_MCL3_avail, CEX2C_avail, index_to_use; + struct status *stat; + if ((*dev_type_p != PCICC) && (*dev_type_p != PCICA) && + (*dev_type_p != PCIXCC_MCL2) && (*dev_type_p != PCIXCC_MCL3) && + (*dev_type_p != CEX2C) && (*dev_type_p != ANYDEV)) + return -1; + if (*dev_type_p != ANYDEV) { + stat = &z90crypt.hdware_info->type_mask[*dev_type_p]; + if (stat->st_count > + (stat->disabled_count + stat->user_disabled_count)) + return 0; + return -1; + } + + /* Assumption: PCICA, PCIXCC_MCL3, and CEX2C are all similar in speed */ + stat = &z90crypt.hdware_info->type_mask[PCICA]; + PCICA_avail = stat->st_count - + (stat->disabled_count + stat->user_disabled_count); + stat = &z90crypt.hdware_info->type_mask[PCIXCC_MCL3]; + PCIXCC_MCL3_avail = stat->st_count - + (stat->disabled_count + stat->user_disabled_count); + stat = &z90crypt.hdware_info->type_mask[CEX2C]; + CEX2C_avail = stat->st_count - + (stat->disabled_count + stat->user_disabled_count); + if (PCICA_avail || PCIXCC_MCL3_avail || CEX2C_avail) { + /** + * bitlength is a factor, PCICA is the most capable, even with + * the new MCL. + */ + if ((bytelength < PCIXCC_MIN_MOD_SIZE) || + (!ext_bitlens && (bytelength < OLD_PCIXCC_MIN_MOD_SIZE))) { + if (!PCICA_avail) + return -1; + else { + *dev_type_p = PCICA; + return 0; + } + } + + index_to_use = count % (PCICA_avail + PCIXCC_MCL3_avail + + CEX2C_avail); + if (index_to_use < PCICA_avail) + *dev_type_p = PCICA; + else if (index_to_use < (PCICA_avail + PCIXCC_MCL3_avail)) + *dev_type_p = PCIXCC_MCL3; + else + *dev_type_p = CEX2C; + count++; + return 0; + } + + /* Less than OLD_PCIXCC_MIN_MOD_SIZE cannot go to a PCIXCC_MCL2 */ + if (bytelength < OLD_PCIXCC_MIN_MOD_SIZE) + return -1; + stat = &z90crypt.hdware_info->type_mask[PCIXCC_MCL2]; + if (stat->st_count > + (stat->disabled_count + stat->user_disabled_count)) { + *dev_type_p = PCIXCC_MCL2; + return 0; + } + + /** + * Less than PCICC_MIN_MOD_SIZE or more than OLD_PCICC_MAX_MOD_SIZE + * (if we don't have the MCL applied and the newer bitlengths enabled) + * cannot go to a PCICC + */ + if ((bytelength < PCICC_MIN_MOD_SIZE) || + (!ext_bitlens && (bytelength > OLD_PCICC_MAX_MOD_SIZE))) { + return -1; + } + stat = &z90crypt.hdware_info->type_mask[PCICC]; + if (stat->st_count > + (stat->disabled_count + stat->user_disabled_count)) { + *dev_type_p = PCICC; + return 0; + } + + return -1; +} + +/** + * Try the selected number, then the selected type (can be ANYDEV) + */ +static inline int +select_device(int *dev_type_p, int *device_nr_p, int bytelength) +{ + int i, indx, devTp, low_count, low_indx; + struct device_x *index_p; + struct device *dev_ptr; + + PDEBUG("device type = %d, index = %d\n", *dev_type_p, *device_nr_p); + if ((*device_nr_p >= 0) && (*device_nr_p < Z90CRYPT_NUM_DEVS)) { + PDEBUG("trying index = %d\n", *device_nr_p); + dev_ptr = z90crypt.device_p[*device_nr_p]; + + if (dev_ptr && + (dev_ptr->dev_stat != DEV_GONE) && + (dev_ptr->disabled == 0) && + (dev_ptr->user_disabled == 0)) { + PDEBUG("selected by number, index = %d\n", + *device_nr_p); + *dev_type_p = dev_ptr->dev_type; + return *device_nr_p; + } + } + *device_nr_p = -1; + PDEBUG("trying type = %d\n", *dev_type_p); + devTp = *dev_type_p; + if (select_device_type(&devTp, bytelength) == -1) { + PDEBUG("failed to select by type\n"); + return -1; + } + PDEBUG("selected type = %d\n", devTp); + index_p = &z90crypt.hdware_info->type_x_addr[devTp]; + low_count = 0x0000FFFF; + low_indx = -1; + for (i = 0; i < z90crypt.hdware_info->type_mask[devTp].st_count; i++) { + indx = index_p->device_index[i]; + dev_ptr = z90crypt.device_p[indx]; + if (dev_ptr && + (dev_ptr->dev_stat != DEV_GONE) && + (dev_ptr->disabled == 0) && + (dev_ptr->user_disabled == 0) && + (devTp == dev_ptr->dev_type) && + (low_count > dev_ptr->dev_caller_count)) { + low_count = dev_ptr->dev_caller_count; + low_indx = indx; + } + } + *device_nr_p = low_indx; + return low_indx; +} + +static inline int +send_to_crypto_device(struct work_element *we_p) +{ + struct caller *caller_p; + struct device *device_p; + int dev_nr; + int bytelen = ((struct ica_rsa_modexpo *)we_p->buffer)->inputdatalength; + + if (!we_p->requestptr) + return SEN_FATAL_ERROR; + caller_p = (struct caller *)we_p->requestptr; + dev_nr = we_p->devindex; + if (select_device(&we_p->devtype, &dev_nr, bytelen) == -1) { + if (z90crypt.hdware_info->hdware_mask.st_count != 0) + return SEN_RETRY; + else + return SEN_NOT_AVAIL; + } + we_p->devindex = dev_nr; + device_p = z90crypt.device_p[dev_nr]; + if (!device_p) + return SEN_NOT_AVAIL; + if (device_p->dev_type != we_p->devtype) + return SEN_RETRY; + if (device_p->dev_caller_count >= device_p->dev_q_depth) + return SEN_QUEUE_FULL; + PDEBUG("device number prior to send: %d\n", dev_nr); + switch (send_to_AP(dev_nr, z90crypt.cdx, + caller_p->caller_dev_dep_req_l, + caller_p->caller_dev_dep_req_p)) { + case DEV_SEN_EXCEPTION: + PRINTKC("Exception during send to device %d\n", dev_nr); + z90crypt.terminating = 1; + return SEN_FATAL_ERROR; + case DEV_GONE: + PRINTK("Device %d not available\n", dev_nr); + remove_device(device_p); + return SEN_NOT_AVAIL; + case DEV_EMPTY: + return SEN_NOT_AVAIL; + case DEV_NO_WORK: + return SEN_FATAL_ERROR; + case DEV_BAD_MESSAGE: + return SEN_USER_ERROR; + case DEV_QUEUE_FULL: + return SEN_QUEUE_FULL; + default: + case DEV_ONLINE: + break; + } + list_add_tail(&(caller_p->caller_liste), &(device_p->dev_caller_list)); + device_p->dev_caller_count++; + return 0; +} + +/** + * Send puts the user's work on one of two queues: + * the pending queue if the send was successful + * the request queue if the send failed because device full or busy + */ +static inline int +z90crypt_send(struct work_element *we_p, const char *buf) +{ + int rv; + + PDEBUG("PID %d\n", PID()); + + if (CHK_RDWRMASK(we_p->status[0]) != STAT_NOWORK) { + PDEBUG("PID %d tried to send more work but has outstanding " + "work.\n", PID()); + return -EWORKPEND; + } + we_p->devindex = -1; // Reset device number + spin_lock_irq(&queuespinlock); + rv = send_to_crypto_device(we_p); + switch (rv) { + case 0: + we_p->requestsent = jiffies; + we_p->audit[0] |= FP_SENT; + list_add_tail(&we_p->liste, &pending_list); + ++pendingq_count; + we_p->audit[0] |= FP_PENDING; + break; + case SEN_BUSY: + case SEN_QUEUE_FULL: + rv = 0; + we_p->devindex = -1; // any device will do + we_p->requestsent = jiffies; + list_add_tail(&we_p->liste, &request_list); + ++requestq_count; + we_p->audit[0] |= FP_REQUEST; + break; + case SEN_RETRY: + rv = -ERESTARTSYS; + break; + case SEN_NOT_AVAIL: + PRINTK("*** No devices available.\n"); + rv = we_p->retcode = -ENODEV; + we_p->status[0] |= STAT_FAILED; + break; + case REC_OPERAND_INV: + case REC_OPERAND_SIZE: + case REC_EVEN_MOD: + case REC_INVALID_PAD: + rv = we_p->retcode = -EINVAL; + we_p->status[0] |= STAT_FAILED; + break; + default: + we_p->retcode = rv; + we_p->status[0] |= STAT_FAILED; + break; + } + if (rv != -ERESTARTSYS) + SET_RDWRMASK(we_p->status[0], STAT_WRITTEN); + spin_unlock_irq(&queuespinlock); + if (rv == 0) + tasklet_schedule(&reader_tasklet); + return rv; +} + +/** + * process_results copies the user's work from kernel space. + */ +static inline int +z90crypt_process_results(struct work_element *we_p, char __user *buf) +{ + int rv; + + PDEBUG("we_p %p (PID %d)\n", we_p, PID()); + + LONG2DEVPTR(we_p->devindex)->dev_total_req_cnt++; + SET_RDWRMASK(we_p->status[0], STAT_READPEND); + + rv = 0; + if (!we_p->buffer) { + PRINTK("we_p %p PID %d in STAT_READPEND: buffer NULL.\n", + we_p, PID()); + rv = -ENOBUFF; + } + + if (!rv) + if ((rv = copy_to_user(buf, we_p->buffer, we_p->buff_size))) { + PDEBUG("copy_to_user failed: rv = %d\n", rv); + rv = -EFAULT; + } + + if (!rv) + rv = we_p->retcode; + if (!rv) + if (we_p->resp_buff_size + && copy_to_user(we_p->resp_addr, we_p->resp_buff, + we_p->resp_buff_size)) + rv = -EFAULT; + + SET_RDWRMASK(we_p->status[0], STAT_NOWORK); + return rv; +} + +static unsigned char NULL_psmid[8] = +{0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00}; + +/** + * Used in device configuration functions + */ +#define MAX_RESET 90 + +/** + * This is used only for PCICC support + */ +static inline int +is_PKCS11_padded(unsigned char *buffer, int length) +{ + int i; + if ((buffer[0] != 0x00) || (buffer[1] != 0x01)) + return 0; + for (i = 2; i < length; i++) + if (buffer[i] != 0xFF) + break; + if ((i < 10) || (i == length)) + return 0; + if (buffer[i] != 0x00) + return 0; + return 1; +} + +/** + * This is used only for PCICC support + */ +static inline int +is_PKCS12_padded(unsigned char *buffer, int length) +{ + int i; + if ((buffer[0] != 0x00) || (buffer[1] != 0x02)) + return 0; + for (i = 2; i < length; i++) + if (buffer[i] == 0x00) + break; + if ((i < 10) || (i == length)) + return 0; + if (buffer[i] != 0x00) + return 0; + return 1; +} + +/** + * builds struct caller and converts message from generic format to + * device-dependent format + * func is ICARSAMODEXPO or ICARSACRT + * function is PCI_FUNC_KEY_ENCRYPT or PCI_FUNC_KEY_DECRYPT + */ +static inline int +build_caller(struct work_element *we_p, short function) +{ + int rv; + struct caller *caller_p = (struct caller *)we_p->requestptr; + + if ((we_p->devtype != PCICC) && (we_p->devtype != PCICA) && + (we_p->devtype != PCIXCC_MCL2) && (we_p->devtype != PCIXCC_MCL3) && + (we_p->devtype != CEX2C)) + return SEN_NOT_AVAIL; + + memcpy(caller_p->caller_id, we_p->caller_id, + sizeof(caller_p->caller_id)); + caller_p->caller_dev_dep_req_p = caller_p->caller_dev_dep_req; + caller_p->caller_dev_dep_req_l = MAX_RESPONSE_SIZE; + caller_p->caller_buf_p = we_p->buffer; + INIT_LIST_HEAD(&(caller_p->caller_liste)); + + rv = convert_request(we_p->buffer, we_p->funccode, function, + z90crypt.cdx, we_p->devtype, + &caller_p->caller_dev_dep_req_l, + caller_p->caller_dev_dep_req_p); + if (rv) { + if (rv == SEN_NOT_AVAIL) + PDEBUG("request can't be processed on hdwr avail\n"); + else + PRINTK("Error from convert_request: %d\n", rv); + } + else + memcpy(&(caller_p->caller_dev_dep_req_p[4]), we_p->caller_id,8); + return rv; +} + +static inline void +unbuild_caller(struct device *device_p, struct caller *caller_p) +{ + if (!caller_p) + return; + if (caller_p->caller_liste.next && caller_p->caller_liste.prev) + if (!list_empty(&caller_p->caller_liste)) { + list_del_init(&caller_p->caller_liste); + device_p->dev_caller_count--; + } + memset(caller_p->caller_id, 0, sizeof(caller_p->caller_id)); +} + +static inline int +get_crypto_request_buffer(struct work_element *we_p) +{ + struct ica_rsa_modexpo *mex_p; + struct ica_rsa_modexpo_crt *crt_p; + unsigned char *temp_buffer; + short function; + int rv; + + mex_p = (struct ica_rsa_modexpo *) we_p->buffer; + crt_p = (struct ica_rsa_modexpo_crt *) we_p->buffer; + + PDEBUG("device type input = %d\n", we_p->devtype); + + if (z90crypt.terminating) + return REC_NO_RESPONSE; + if (memcmp(we_p->caller_id, NULL_psmid, 8) == 0) { + PRINTK("psmid zeroes\n"); + return SEN_FATAL_ERROR; + } + if (!we_p->buffer) { + PRINTK("buffer pointer NULL\n"); + return SEN_USER_ERROR; + } + if (!we_p->requestptr) { + PRINTK("caller pointer NULL\n"); + return SEN_USER_ERROR; + } + + if ((we_p->devtype != PCICA) && (we_p->devtype != PCICC) && + (we_p->devtype != PCIXCC_MCL2) && (we_p->devtype != PCIXCC_MCL3) && + (we_p->devtype != CEX2C) && (we_p->devtype != ANYDEV)) { + PRINTK("invalid device type\n"); + return SEN_USER_ERROR; + } + + if ((mex_p->inputdatalength < 1) || + (mex_p->inputdatalength > MAX_MOD_SIZE)) { + PRINTK("inputdatalength[%d] is not valid\n", + mex_p->inputdatalength); + return SEN_USER_ERROR; + } + + if (mex_p->outputdatalength < mex_p->inputdatalength) { + PRINTK("outputdatalength[%d] < inputdatalength[%d]\n", + mex_p->outputdatalength, mex_p->inputdatalength); + return SEN_USER_ERROR; + } + + if (!mex_p->inputdata || !mex_p->outputdata) { + PRINTK("inputdata[%p] or outputdata[%p] is NULL\n", + mex_p->outputdata, mex_p->inputdata); + return SEN_USER_ERROR; + } + + /** + * As long as outputdatalength is big enough, we can set the + * outputdatalength equal to the inputdatalength, since that is the + * number of bytes we will copy in any case + */ + mex_p->outputdatalength = mex_p->inputdatalength; + + rv = 0; + switch (we_p->funccode) { + case ICARSAMODEXPO: + if (!mex_p->b_key || !mex_p->n_modulus) + rv = SEN_USER_ERROR; + break; + case ICARSACRT: + if (!IS_EVEN(crt_p->inputdatalength)) { + PRINTK("inputdatalength[%d] is odd, CRT form\n", + crt_p->inputdatalength); + rv = SEN_USER_ERROR; + break; + } + if (!crt_p->bp_key || + !crt_p->bq_key || + !crt_p->np_prime || + !crt_p->nq_prime || + !crt_p->u_mult_inv) { + PRINTK("CRT form, bad data: %p/%p/%p/%p/%p\n", + crt_p->bp_key, crt_p->bq_key, + crt_p->np_prime, crt_p->nq_prime, + crt_p->u_mult_inv); + rv = SEN_USER_ERROR; + } + break; + default: + PRINTK("bad func = %d\n", we_p->funccode); + rv = SEN_USER_ERROR; + break; + } + if (rv != 0) + return rv; + + if (select_device_type(&we_p->devtype, mex_p->inputdatalength) < 0) + return SEN_NOT_AVAIL; + + temp_buffer = (unsigned char *)we_p + sizeof(struct work_element) + + sizeof(struct caller); + if (copy_from_user(temp_buffer, mex_p->inputdata, + mex_p->inputdatalength) != 0) + return SEN_RELEASED; + + function = PCI_FUNC_KEY_ENCRYPT; + switch (we_p->devtype) { + /* PCICA does everything with a simple RSA mod-expo operation */ + case PCICA: + function = PCI_FUNC_KEY_ENCRYPT; + break; + /** + * PCIXCC_MCL2 does all Mod-Expo form with a simple RSA mod-expo + * operation, and all CRT forms with a PKCS-1.2 format decrypt. + * PCIXCC_MCL3 and CEX2C do all Mod-Expo and CRT forms with a simple RSA + * mod-expo operation + */ + case PCIXCC_MCL2: + if (we_p->funccode == ICARSAMODEXPO) + function = PCI_FUNC_KEY_ENCRYPT; + else + function = PCI_FUNC_KEY_DECRYPT; + break; + case PCIXCC_MCL3: + case CEX2C: + if (we_p->funccode == ICARSAMODEXPO) + function = PCI_FUNC_KEY_ENCRYPT; + else + function = PCI_FUNC_KEY_DECRYPT; + break; + /** + * PCICC does everything as a PKCS-1.2 format request + */ + case PCICC: + /* PCICC cannot handle input that is is PKCS#1.1 padded */ + if (is_PKCS11_padded(temp_buffer, mex_p->inputdatalength)) { + return SEN_NOT_AVAIL; + } + if (we_p->funccode == ICARSAMODEXPO) { + if (is_PKCS12_padded(temp_buffer, + mex_p->inputdatalength)) + function = PCI_FUNC_KEY_ENCRYPT; + else + function = PCI_FUNC_KEY_DECRYPT; + } else + /* all CRT forms are decrypts */ + function = PCI_FUNC_KEY_DECRYPT; + break; + } + PDEBUG("function: %04x\n", function); + rv = build_caller(we_p, function); + PDEBUG("rv from build_caller = %d\n", rv); + return rv; +} + +static inline int +z90crypt_prepare(struct work_element *we_p, unsigned int funccode, + const char __user *buffer) +{ + int rv; + + we_p->devindex = -1; + if (funccode == ICARSAMODEXPO) + we_p->buff_size = sizeof(struct ica_rsa_modexpo); + else + we_p->buff_size = sizeof(struct ica_rsa_modexpo_crt); + + if (copy_from_user(we_p->buffer, buffer, we_p->buff_size)) + return -EFAULT; + + we_p->audit[0] |= FP_COPYFROM; + SET_RDWRMASK(we_p->status[0], STAT_WRITTEN); + we_p->funccode = funccode; + we_p->devtype = -1; + we_p->audit[0] |= FP_BUFFREQ; + rv = get_crypto_request_buffer(we_p); + switch (rv) { + case 0: + we_p->audit[0] |= FP_BUFFGOT; + break; + case SEN_USER_ERROR: + rv = -EINVAL; + break; + case SEN_QUEUE_FULL: + rv = 0; + break; + case SEN_RELEASED: + rv = -EFAULT; + break; + case REC_NO_RESPONSE: + rv = -ENODEV; + break; + case SEN_NOT_AVAIL: + case EGETBUFF: + rv = -EGETBUFF; + break; + default: + PRINTK("rv = %d\n", rv); + rv = -EGETBUFF; + break; + } + if (CHK_RDWRMASK(we_p->status[0]) == STAT_WRITTEN) + SET_RDWRMASK(we_p->status[0], STAT_DEFAULT); + return rv; +} + +static inline void +purge_work_element(struct work_element *we_p) +{ + struct list_head *lptr; + + spin_lock_irq(&queuespinlock); + list_for_each(lptr, &request_list) { + if (lptr == &we_p->liste) { + list_del_init(lptr); + requestq_count--; + break; + } + } + list_for_each(lptr, &pending_list) { + if (lptr == &we_p->liste) { + list_del_init(lptr); + pendingq_count--; + break; + } + } + spin_unlock_irq(&queuespinlock); +} + +/** + * Build the request and send it. + */ +static inline int +z90crypt_rsa(struct priv_data *private_data_p, pid_t pid, + unsigned int cmd, unsigned long arg) +{ + struct work_element *we_p; + int rv; + + if ((rv = allocate_work_element(&we_p, private_data_p, pid))) { + PDEBUG("PID %d: allocate_work_element returned ENOMEM\n", pid); + return rv; + } + if ((rv = z90crypt_prepare(we_p, cmd, (const char __user *)arg))) + PDEBUG("PID %d: rv = %d from z90crypt_prepare\n", pid, rv); + if (!rv) + if ((rv = z90crypt_send(we_p, (const char *)arg))) + PDEBUG("PID %d: rv %d from z90crypt_send.\n", pid, rv); + if (!rv) { + we_p->audit[0] |= FP_ASLEEP; + wait_event(we_p->waitq, atomic_read(&we_p->alarmrung)); + we_p->audit[0] |= FP_AWAKE; + rv = we_p->retcode; + } + if (!rv) + rv = z90crypt_process_results(we_p, (char __user *)arg); + + if ((we_p->status[0] & STAT_FAILED)) { + switch (rv) { + /** + * EINVAL *after* receive is almost always a padding error or + * length error issued by a coprocessor (not an accelerator). + * We convert this return value to -EGETBUFF which should + * trigger a fallback to software. + */ + case -EINVAL: + if (we_p->devtype != PCICA) + rv = -EGETBUFF; + break; + case -ETIMEOUT: + if (z90crypt.mask.st_count > 0) + rv = -ERESTARTSYS; // retry with another + else + rv = -ENODEV; // no cards left + /* fall through to clean up request queue */ + case -ERESTARTSYS: + case -ERELEASED: + switch (CHK_RDWRMASK(we_p->status[0])) { + case STAT_WRITTEN: + purge_work_element(we_p); + break; + case STAT_READPEND: + case STAT_NOWORK: + default: + break; + } + break; + default: + we_p->status[0] ^= STAT_FAILED; + break; + } + } + free_page((long)we_p); + return rv; +} + +/** + * This function is a little long, but it's really just one large switch + * statement. + */ +static int +z90crypt_ioctl(struct inode *inode, struct file *filp, + unsigned int cmd, unsigned long arg) +{ + struct priv_data *private_data_p = filp->private_data; + unsigned char *status; + unsigned char *qdepth; + unsigned int *reqcnt; + struct ica_z90_status *pstat; + int ret, i, loopLim, tempstat; + static int deprecated_msg_count1 = 0; + static int deprecated_msg_count2 = 0; + + PDEBUG("filp %p (PID %d), cmd 0x%08X\n", filp, PID(), cmd); + PDEBUG("cmd 0x%08X: dir %s, size 0x%04X, type 0x%02X, nr 0x%02X\n", + cmd, + !_IOC_DIR(cmd) ? "NO" + : ((_IOC_DIR(cmd) == (_IOC_READ|_IOC_WRITE)) ? "RW" + : ((_IOC_DIR(cmd) == _IOC_READ) ? "RD" + : "WR")), + _IOC_SIZE(cmd), _IOC_TYPE(cmd), _IOC_NR(cmd)); + + if (_IOC_TYPE(cmd) != Z90_IOCTL_MAGIC) { + PRINTK("cmd 0x%08X contains bad magic\n", cmd); + return -ENOTTY; + } + + ret = 0; + switch (cmd) { + case ICARSAMODEXPO: + case ICARSACRT: + if (quiesce_z90crypt) { + ret = -EQUIESCE; + break; + } + ret = -ENODEV; // Default if no devices + loopLim = z90crypt.hdware_info->hdware_mask.st_count - + (z90crypt.hdware_info->hdware_mask.disabled_count + + z90crypt.hdware_info->hdware_mask.user_disabled_count); + for (i = 0; i < loopLim; i++) { + ret = z90crypt_rsa(private_data_p, PID(), cmd, arg); + if (ret != -ERESTARTSYS) + break; + } + if (ret == -ERESTARTSYS) + ret = -ENODEV; + break; + + case Z90STAT_TOTALCOUNT: + tempstat = get_status_totalcount(); + if (copy_to_user((int __user *)arg, &tempstat,sizeof(int)) != 0) + ret = -EFAULT; + break; + + case Z90STAT_PCICACOUNT: + tempstat = get_status_PCICAcount(); + if (copy_to_user((int __user *)arg, &tempstat, sizeof(int)) != 0) + ret = -EFAULT; + break; + + case Z90STAT_PCICCCOUNT: + tempstat = get_status_PCICCcount(); + if (copy_to_user((int __user *)arg, &tempstat, sizeof(int)) != 0) + ret = -EFAULT; + break; + + case Z90STAT_PCIXCCMCL2COUNT: + tempstat = get_status_PCIXCCMCL2count(); + if (copy_to_user((int __user *)arg, &tempstat, sizeof(int)) != 0) + ret = -EFAULT; + break; + + case Z90STAT_PCIXCCMCL3COUNT: + tempstat = get_status_PCIXCCMCL3count(); + if (copy_to_user((int __user *)arg, &tempstat, sizeof(int)) != 0) + ret = -EFAULT; + break; + + case Z90STAT_CEX2CCOUNT: + tempstat = get_status_CEX2Ccount(); + if (copy_to_user((int __user *)arg, &tempstat, sizeof(int)) != 0) + ret = -EFAULT; + break; + + case Z90STAT_REQUESTQ_COUNT: + tempstat = get_status_requestq_count(); + if (copy_to_user((int __user *)arg, &tempstat, sizeof(int)) != 0) + ret = -EFAULT; + break; + + case Z90STAT_PENDINGQ_COUNT: + tempstat = get_status_pendingq_count(); + if (copy_to_user((int __user *)arg, &tempstat, sizeof(int)) != 0) + ret = -EFAULT; + break; + + case Z90STAT_TOTALOPEN_COUNT: + tempstat = get_status_totalopen_count(); + if (copy_to_user((int __user *)arg, &tempstat, sizeof(int)) != 0) + ret = -EFAULT; + break; + + case Z90STAT_DOMAIN_INDEX: + tempstat = get_status_domain_index(); + if (copy_to_user((int __user *)arg, &tempstat, sizeof(int)) != 0) + ret = -EFAULT; + break; + + case Z90STAT_STATUS_MASK: + status = kmalloc(Z90CRYPT_NUM_APS, GFP_KERNEL); + if (!status) { + PRINTK("kmalloc for status failed!\n"); + ret = -ENOMEM; + break; + } + get_status_status_mask(status); + if (copy_to_user((char __user *) arg, status, Z90CRYPT_NUM_APS) + != 0) + ret = -EFAULT; + kfree(status); + break; + + case Z90STAT_QDEPTH_MASK: + qdepth = kmalloc(Z90CRYPT_NUM_APS, GFP_KERNEL); + if (!qdepth) { + PRINTK("kmalloc for qdepth failed!\n"); + ret = -ENOMEM; + break; + } + get_status_qdepth_mask(qdepth); + if (copy_to_user((char __user *) arg, qdepth, Z90CRYPT_NUM_APS) != 0) + ret = -EFAULT; + kfree(qdepth); + break; + + case Z90STAT_PERDEV_REQCNT: + reqcnt = kmalloc(sizeof(int) * Z90CRYPT_NUM_APS, GFP_KERNEL); + if (!reqcnt) { + PRINTK("kmalloc for reqcnt failed!\n"); + ret = -ENOMEM; + break; + } + get_status_perdevice_reqcnt(reqcnt); + if (copy_to_user((char __user *) arg, reqcnt, + Z90CRYPT_NUM_APS * sizeof(int)) != 0) + ret = -EFAULT; + kfree(reqcnt); + break; + + /* THIS IS DEPRECATED. USE THE NEW STATUS CALLS */ + case ICAZ90STATUS: + if (deprecated_msg_count1 < 20) { + PRINTK("deprecated call to ioctl (ICAZ90STATUS)!\n"); + deprecated_msg_count1++; + if (deprecated_msg_count1 == 20) + PRINTK("No longer issuing messages related to " + "deprecated call to ICAZ90STATUS.\n"); + } + + pstat = kmalloc(sizeof(struct ica_z90_status), GFP_KERNEL); + if (!pstat) { + PRINTK("kmalloc for pstat failed!\n"); + ret = -ENOMEM; + break; + } + + pstat->totalcount = get_status_totalcount(); + pstat->leedslitecount = get_status_PCICAcount(); + pstat->leeds2count = get_status_PCICCcount(); + pstat->requestqWaitCount = get_status_requestq_count(); + pstat->pendingqWaitCount = get_status_pendingq_count(); + pstat->totalOpenCount = get_status_totalopen_count(); + pstat->cryptoDomain = get_status_domain_index(); + get_status_status_mask(pstat->status); + get_status_qdepth_mask(pstat->qdepth); + + if (copy_to_user((struct ica_z90_status __user *) arg, pstat, + sizeof(struct ica_z90_status)) != 0) + ret = -EFAULT; + kfree(pstat); + break; + + /* THIS IS DEPRECATED. USE THE NEW STATUS CALLS */ + case Z90STAT_PCIXCCCOUNT: + if (deprecated_msg_count2 < 20) { + PRINTK("deprecated ioctl (Z90STAT_PCIXCCCOUNT)!\n"); + deprecated_msg_count2++; + if (deprecated_msg_count2 == 20) + PRINTK("No longer issuing messages about depre" + "cated ioctl Z90STAT_PCIXCCCOUNT.\n"); + } + + tempstat = get_status_PCIXCCcount(); + if (copy_to_user((int *)arg, &tempstat, sizeof(int)) != 0) + ret = -EFAULT; + break; + + case Z90QUIESCE: + if (current->euid != 0) { + PRINTK("QUIESCE fails: euid %d\n", + current->euid); + ret = -EACCES; + } else { + PRINTK("QUIESCE device from PID %d\n", PID()); + quiesce_z90crypt = 1; + } + break; + + default: + /* user passed an invalid IOCTL number */ + PDEBUG("cmd 0x%08X contains invalid ioctl code\n", cmd); + ret = -ENOTTY; + break; + } + + return ret; +} + +static inline int +sprintcl(unsigned char *outaddr, unsigned char *addr, unsigned int len) +{ + int hl, i; + + hl = 0; + for (i = 0; i < len; i++) + hl += sprintf(outaddr+hl, "%01x", (unsigned int) addr[i]); + hl += sprintf(outaddr+hl, " "); + + return hl; +} + +static inline int +sprintrw(unsigned char *outaddr, unsigned char *addr, unsigned int len) +{ + int hl, inl, c, cx; + + hl = sprintf(outaddr, " "); + inl = 0; + for (c = 0; c < (len / 16); c++) { + hl += sprintcl(outaddr+hl, addr+inl, 16); + inl += 16; + } + + cx = len%16; + if (cx) { + hl += sprintcl(outaddr+hl, addr+inl, cx); + inl += cx; + } + + hl += sprintf(outaddr+hl, "\n"); + + return hl; +} + +static inline int +sprinthx(unsigned char *title, unsigned char *outaddr, + unsigned char *addr, unsigned int len) +{ + int hl, inl, r, rx; + + hl = sprintf(outaddr, "\n%s\n", title); + inl = 0; + for (r = 0; r < (len / 64); r++) { + hl += sprintrw(outaddr+hl, addr+inl, 64); + inl += 64; + } + rx = len % 64; + if (rx) { + hl += sprintrw(outaddr+hl, addr+inl, rx); + inl += rx; + } + + hl += sprintf(outaddr+hl, "\n"); + + return hl; +} + +static inline int +sprinthx4(unsigned char *title, unsigned char *outaddr, + unsigned int *array, unsigned int len) +{ + int hl, r; + + hl = sprintf(outaddr, "\n%s\n", title); + + for (r = 0; r < len; r++) { + if ((r % 8) == 0) + hl += sprintf(outaddr+hl, " "); + hl += sprintf(outaddr+hl, "%08X ", array[r]); + if ((r % 8) == 7) + hl += sprintf(outaddr+hl, "\n"); + } + + hl += sprintf(outaddr+hl, "\n"); + + return hl; +} + +static int +z90crypt_status(char *resp_buff, char **start, off_t offset, + int count, int *eof, void *data) +{ + unsigned char *workarea; + int len; + + /* resp_buff is a page. Use the right half for a work area */ + workarea = resp_buff+2000; + len = 0; + len += sprintf(resp_buff+len, "\nz90crypt version: %d.%d.%d\n", + z90crypt_VERSION, z90crypt_RELEASE, z90crypt_VARIANT); + len += sprintf(resp_buff+len, "Cryptographic domain: %d\n", + get_status_domain_index()); + len += sprintf(resp_buff+len, "Total device count: %d\n", + get_status_totalcount()); + len += sprintf(resp_buff+len, "PCICA count: %d\n", + get_status_PCICAcount()); + len += sprintf(resp_buff+len, "PCICC count: %d\n", + get_status_PCICCcount()); + len += sprintf(resp_buff+len, "PCIXCC MCL2 count: %d\n", + get_status_PCIXCCMCL2count()); + len += sprintf(resp_buff+len, "PCIXCC MCL3 count: %d\n", + get_status_PCIXCCMCL3count()); + len += sprintf(resp_buff+len, "CEX2C count: %d\n", + get_status_CEX2Ccount()); + len += sprintf(resp_buff+len, "requestq count: %d\n", + get_status_requestq_count()); + len += sprintf(resp_buff+len, "pendingq count: %d\n", + get_status_pendingq_count()); + len += sprintf(resp_buff+len, "Total open handles: %d\n\n", + get_status_totalopen_count()); + len += sprinthx( + "Online devices: 1: PCICA, 2: PCICC, 3: PCIXCC (MCL2), " + "4: PCIXCC (MCL3), 5: CEX2C", + resp_buff+len, + get_status_status_mask(workarea), + Z90CRYPT_NUM_APS); + len += sprinthx("Waiting work element counts", + resp_buff+len, + get_status_qdepth_mask(workarea), + Z90CRYPT_NUM_APS); + len += sprinthx4( + "Per-device successfully completed request counts", + resp_buff+len, + get_status_perdevice_reqcnt((unsigned int *)workarea), + Z90CRYPT_NUM_APS); + *eof = 1; + memset(workarea, 0, Z90CRYPT_NUM_APS * sizeof(unsigned int)); + return len; +} + +static inline void +disable_card(int card_index) +{ + struct device *devp; + + devp = LONG2DEVPTR(card_index); + if (!devp || devp->user_disabled) + return; + devp->user_disabled = 1; + z90crypt.hdware_info->hdware_mask.user_disabled_count++; + if (devp->dev_type == -1) + return; + z90crypt.hdware_info->type_mask[devp->dev_type].user_disabled_count++; +} + +static inline void +enable_card(int card_index) +{ + struct device *devp; + + devp = LONG2DEVPTR(card_index); + if (!devp || !devp->user_disabled) + return; + devp->user_disabled = 0; + z90crypt.hdware_info->hdware_mask.user_disabled_count--; + if (devp->dev_type == -1) + return; + z90crypt.hdware_info->type_mask[devp->dev_type].user_disabled_count--; +} + +static inline int +scan_char(unsigned char *bf, unsigned int len, + unsigned int *offs, unsigned int *p_eof, unsigned char c) +{ + unsigned int i, found; + + found = 0; + for (i = 0; i < len; i++) { + if (bf[i] == c) { + found = 1; + break; + } + if (bf[i] == '\0') { + *p_eof = 1; + break; + } + if (bf[i] == '\n') { + break; + } + } + *offs = i+1; + return found; +} + +static inline int +scan_string(unsigned char *bf, unsigned int len, + unsigned int *offs, unsigned int *p_eof, unsigned char *s) +{ + unsigned int temp_len, temp_offs, found, eof; + + temp_len = temp_offs = found = eof = 0; + while (!eof && !found) { + found = scan_char(bf+temp_len, len-temp_len, + &temp_offs, &eof, *s); + + temp_len += temp_offs; + if (eof) { + found = 0; + break; + } + + if (found) { + if (len >= temp_offs+strlen(s)) { + found = !strncmp(bf+temp_len-1, s, strlen(s)); + if (found) { + *offs = temp_len+strlen(s)-1; + break; + } + } else { + found = 0; + *p_eof = 1; + break; + } + } + } + return found; +} + +static int +z90crypt_status_write(struct file *file, const char __user *buffer, + unsigned long count, void *data) +{ + int i, j, len, offs, found, eof; + unsigned char *lbuf; + unsigned int local_count; + +#define LBUFSIZE 600 + lbuf = kmalloc(LBUFSIZE, GFP_KERNEL); + if (!lbuf) { + PRINTK("kmalloc failed!\n"); + return 0; + } + + if (count <= 0) + return 0; + + local_count = UMIN((unsigned int)count, LBUFSIZE-1); + + if (copy_from_user(lbuf, buffer, local_count) != 0) { + kfree(lbuf); + return -EFAULT; + } + + lbuf[local_count-1] = '\0'; + + len = 0; + eof = 0; + found = 0; + while (!eof) { + found = scan_string(lbuf+len, local_count-len, &offs, &eof, + "Online devices"); + len += offs; + if (found == 1) + break; + } + + if (eof) { + kfree(lbuf); + return count; + } + + if (found) + found = scan_char(lbuf+len, local_count-len, &offs, &eof, '\n'); + + if (!found || eof) { + kfree(lbuf); + return count; + } + + len += offs; + j = 0; + for (i = 0; i < 80; i++) { + switch (*(lbuf+len+i)) { + case '\t': + case ' ': + break; + case '\n': + default: + eof = 1; + break; + case '0': + case '1': + case '2': + case '3': + case '4': + case '5': + j++; + break; + case 'd': + case 'D': + disable_card(j); + j++; + break; + case 'e': + case 'E': + enable_card(j); + j++; + break; + } + if (eof) + break; + } + + kfree(lbuf); + return count; +} + +/** + * Functions that run under a timer, with no process id + * + * The task functions: + * z90crypt_reader_task + * helper_send_work + * helper_handle_work_element + * helper_receive_rc + * z90crypt_config_task + * z90crypt_cleanup_task + * + * Helper functions: + * z90crypt_schedule_reader_timer + * z90crypt_schedule_reader_task + * z90crypt_schedule_config_task + * z90crypt_schedule_cleanup_task + */ +static inline int +receive_from_crypto_device(int index, unsigned char *psmid, int *buff_len_p, + unsigned char *buff, unsigned char __user **dest_p_p) +{ + int dv, rv; + struct device *dev_ptr; + struct caller *caller_p; + struct ica_rsa_modexpo *icaMsg_p; + struct list_head *ptr, *tptr; + + memcpy(psmid, NULL_psmid, sizeof(NULL_psmid)); + + if (z90crypt.terminating) + return REC_FATAL_ERROR; + + caller_p = 0; + dev_ptr = z90crypt.device_p[index]; + rv = 0; + do { + if (!dev_ptr || dev_ptr->disabled) { + rv = REC_NO_WORK; // a disabled device can't return work + break; + } + if (dev_ptr->dev_self_x != index) { + PRINTKC("Corrupt dev ptr\n"); + z90crypt.terminating = 1; + rv = REC_FATAL_ERROR; + break; + } + if (!dev_ptr->dev_resp_l || !dev_ptr->dev_resp_p) { + dv = DEV_REC_EXCEPTION; + PRINTK("dev_resp_l = %d, dev_resp_p = %p\n", + dev_ptr->dev_resp_l, dev_ptr->dev_resp_p); + } else { + PDEBUG("Dequeue called for device %d\n", index); + dv = receive_from_AP(index, z90crypt.cdx, + dev_ptr->dev_resp_l, + dev_ptr->dev_resp_p, psmid); + } + switch (dv) { + case DEV_REC_EXCEPTION: + rv = REC_FATAL_ERROR; + z90crypt.terminating = 1; + PRINTKC("Exception in receive from device %d\n", + index); + break; + case DEV_ONLINE: + rv = 0; + break; + case DEV_EMPTY: + rv = REC_EMPTY; + break; + case DEV_NO_WORK: + rv = REC_NO_WORK; + break; + case DEV_BAD_MESSAGE: + case DEV_GONE: + case REC_HARDWAR_ERR: + default: + rv = REC_NO_RESPONSE; + break; + } + if (rv) + break; + if (dev_ptr->dev_caller_count <= 0) { + rv = REC_USER_GONE; + break; + } + + list_for_each_safe(ptr, tptr, &dev_ptr->dev_caller_list) { + caller_p = list_entry(ptr, struct caller, caller_liste); + if (!memcmp(caller_p->caller_id, psmid, + sizeof(caller_p->caller_id))) { + if (!list_empty(&caller_p->caller_liste)) { + list_del_init(ptr); + dev_ptr->dev_caller_count--; + break; + } + } + caller_p = 0; + } + if (!caller_p) { + PRINTKW("Unable to locate PSMID %02X%02X%02X%02X%02X" + "%02X%02X%02X in device list\n", + psmid[0], psmid[1], psmid[2], psmid[3], + psmid[4], psmid[5], psmid[6], psmid[7]); + rv = REC_USER_GONE; + break; + } + + PDEBUG("caller_p after successful receive: %p\n", caller_p); + rv = convert_response(dev_ptr->dev_resp_p, + caller_p->caller_buf_p, buff_len_p, buff); + switch (rv) { + case REC_USE_PCICA: + break; + case REC_OPERAND_INV: + case REC_OPERAND_SIZE: + case REC_EVEN_MOD: + case REC_INVALID_PAD: + PDEBUG("device %d: 'user error' %d\n", index, rv); + break; + case WRONG_DEVICE_TYPE: + case REC_HARDWAR_ERR: + case REC_BAD_MESSAGE: + PRINTKW("device %d: hardware error %d\n", index, rv); + rv = REC_NO_RESPONSE; + break; + default: + PDEBUG("device %d: rv = %d\n", index, rv); + break; + } + } while (0); + + switch (rv) { + case 0: + PDEBUG("Successful receive from device %d\n", index); + icaMsg_p = (struct ica_rsa_modexpo *)caller_p->caller_buf_p; + *dest_p_p = icaMsg_p->outputdata; + if (*buff_len_p == 0) + PRINTK("Zero *buff_len_p\n"); + break; + case REC_NO_RESPONSE: + PRINTKW("Removing device %d from availability\n", index); + remove_device(dev_ptr); + break; + } + + if (caller_p) + unbuild_caller(dev_ptr, caller_p); + + return rv; +} + +static inline void +helper_send_work(int index) +{ + struct work_element *rq_p; + int rv; + + if (list_empty(&request_list)) + return; + requestq_count--; + rq_p = list_entry(request_list.next, struct work_element, liste); + list_del_init(&rq_p->liste); + rq_p->audit[1] |= FP_REMREQUEST; + if (rq_p->devtype == SHRT2DEVPTR(index)->dev_type) { + rq_p->devindex = SHRT2LONG(index); + rv = send_to_crypto_device(rq_p); + if (rv == 0) { + rq_p->requestsent = jiffies; + rq_p->audit[0] |= FP_SENT; + list_add_tail(&rq_p->liste, &pending_list); + ++pendingq_count; + rq_p->audit[0] |= FP_PENDING; + } else { + switch (rv) { + case REC_OPERAND_INV: + case REC_OPERAND_SIZE: + case REC_EVEN_MOD: + case REC_INVALID_PAD: + rq_p->retcode = -EINVAL; + break; + case SEN_NOT_AVAIL: + case SEN_RETRY: + case REC_NO_RESPONSE: + default: + if (z90crypt.mask.st_count > 1) + rq_p->retcode = + -ERESTARTSYS; + else + rq_p->retcode = -ENODEV; + break; + } + rq_p->status[0] |= STAT_FAILED; + rq_p->audit[1] |= FP_AWAKENING; + atomic_set(&rq_p->alarmrung, 1); + wake_up(&rq_p->waitq); + } + } else { + if (z90crypt.mask.st_count > 1) + rq_p->retcode = -ERESTARTSYS; + else + rq_p->retcode = -ENODEV; + rq_p->status[0] |= STAT_FAILED; + rq_p->audit[1] |= FP_AWAKENING; + atomic_set(&rq_p->alarmrung, 1); + wake_up(&rq_p->waitq); + } +} + +static inline void +helper_handle_work_element(int index, unsigned char psmid[8], int rc, + int buff_len, unsigned char *buff, + unsigned char __user *resp_addr) +{ + struct work_element *pq_p; + struct list_head *lptr, *tptr; + + pq_p = 0; + list_for_each_safe(lptr, tptr, &pending_list) { + pq_p = list_entry(lptr, struct work_element, liste); + if (!memcmp(pq_p->caller_id, psmid, sizeof(pq_p->caller_id))) { + list_del_init(lptr); + pendingq_count--; + pq_p->audit[1] |= FP_NOTPENDING; + break; + } + pq_p = 0; + } + + if (!pq_p) { + PRINTK("device %d has work but no caller exists on pending Q\n", + SHRT2LONG(index)); + return; + } + + switch (rc) { + case 0: + pq_p->resp_buff_size = buff_len; + pq_p->audit[1] |= FP_RESPSIZESET; + if (buff_len) { + pq_p->resp_addr = resp_addr; + pq_p->audit[1] |= FP_RESPADDRCOPIED; + memcpy(pq_p->resp_buff, buff, buff_len); + pq_p->audit[1] |= FP_RESPBUFFCOPIED; + } + break; + case REC_OPERAND_INV: + case REC_OPERAND_SIZE: + case REC_EVEN_MOD: + case REC_INVALID_PAD: + PDEBUG("-EINVAL after application error %d\n", rc); + pq_p->retcode = -EINVAL; + pq_p->status[0] |= STAT_FAILED; + break; + case REC_USE_PCICA: + pq_p->retcode = -ERESTARTSYS; + pq_p->status[0] |= STAT_FAILED; + break; + case REC_NO_RESPONSE: + default: + if (z90crypt.mask.st_count > 1) + pq_p->retcode = -ERESTARTSYS; + else + pq_p->retcode = -ENODEV; + pq_p->status[0] |= STAT_FAILED; + break; + } + if ((pq_p->status[0] != STAT_FAILED) || (pq_p->retcode != -ERELEASED)) { + pq_p->audit[1] |= FP_AWAKENING; + atomic_set(&pq_p->alarmrung, 1); + wake_up(&pq_p->waitq); + } +} + +/** + * return TRUE if the work element should be removed from the queue + */ +static inline int +helper_receive_rc(int index, int *rc_p) +{ + switch (*rc_p) { + case 0: + case REC_OPERAND_INV: + case REC_OPERAND_SIZE: + case REC_EVEN_MOD: + case REC_INVALID_PAD: + case REC_USE_PCICA: + break; + + case REC_BUSY: + case REC_NO_WORK: + case REC_EMPTY: + case REC_RETRY_DEV: + case REC_FATAL_ERROR: + return 0; + + case REC_NO_RESPONSE: + break; + + default: + PRINTK("rc %d, device %d converted to REC_NO_RESPONSE\n", + *rc_p, SHRT2LONG(index)); + *rc_p = REC_NO_RESPONSE; + break; + } + return 1; +} + +static inline void +z90crypt_schedule_reader_timer(void) +{ + if (timer_pending(&reader_timer)) + return; + if (mod_timer(&reader_timer, jiffies+(READERTIME*HZ/1000)) != 0) + PRINTK("Timer pending while modifying reader timer\n"); +} + +static void +z90crypt_reader_task(unsigned long ptr) +{ + int workavail, index, rc, buff_len; + unsigned char psmid[8]; + unsigned char __user *resp_addr; + static unsigned char buff[1024]; + + /** + * we use workavail = 2 to ensure 2 passes with nothing dequeued before + * exiting the loop. If (pendingq_count+requestq_count) == 0 after the + * loop, there is no work remaining on the queues. + */ + resp_addr = 0; + workavail = 2; + buff_len = 0; + while (workavail) { + workavail--; + rc = 0; + spin_lock_irq(&queuespinlock); + memset(buff, 0x00, sizeof(buff)); + + /* Dequeue once from each device in round robin. */ + for (index = 0; index < z90crypt.mask.st_count; index++) { + PDEBUG("About to receive.\n"); + rc = receive_from_crypto_device(SHRT2LONG(index), + psmid, + &buff_len, + buff, + &resp_addr); + PDEBUG("Dequeued: rc = %d.\n", rc); + + if (helper_receive_rc(index, &rc)) { + if (rc != REC_NO_RESPONSE) { + helper_send_work(index); + workavail = 2; + } + + helper_handle_work_element(index, psmid, rc, + buff_len, buff, + resp_addr); + } + + if (rc == REC_FATAL_ERROR) + PRINTKW("REC_FATAL_ERROR from device %d!\n", + SHRT2LONG(index)); + } + spin_unlock_irq(&queuespinlock); + } + + if (pendingq_count + requestq_count) + z90crypt_schedule_reader_timer(); +} + +static inline void +z90crypt_schedule_config_task(unsigned int expiration) +{ + if (timer_pending(&config_timer)) + return; + if (mod_timer(&config_timer, jiffies+(expiration*HZ)) != 0) + PRINTK("Timer pending while modifying config timer\n"); +} + +static void +z90crypt_config_task(unsigned long ptr) +{ + int rc; + + PDEBUG("jiffies %ld\n", jiffies); + + if ((rc = refresh_z90crypt(&z90crypt.cdx))) + PRINTK("Error %d detected in refresh_z90crypt.\n", rc); + /* If return was fatal, don't bother reconfiguring */ + if ((rc != TSQ_FATAL_ERROR) && (rc != RSQ_FATAL_ERROR)) + z90crypt_schedule_config_task(CONFIGTIME); +} + +static inline void +z90crypt_schedule_cleanup_task(void) +{ + if (timer_pending(&cleanup_timer)) + return; + if (mod_timer(&cleanup_timer, jiffies+(CLEANUPTIME*HZ)) != 0) + PRINTK("Timer pending while modifying cleanup timer\n"); +} + +static inline void +helper_drain_queues(void) +{ + struct work_element *pq_p; + struct list_head *lptr, *tptr; + + list_for_each_safe(lptr, tptr, &pending_list) { + pq_p = list_entry(lptr, struct work_element, liste); + pq_p->retcode = -ENODEV; + pq_p->status[0] |= STAT_FAILED; + unbuild_caller(LONG2DEVPTR(pq_p->devindex), + (struct caller *)pq_p->requestptr); + list_del_init(lptr); + pendingq_count--; + pq_p->audit[1] |= FP_NOTPENDING; + pq_p->audit[1] |= FP_AWAKENING; + atomic_set(&pq_p->alarmrung, 1); + wake_up(&pq_p->waitq); + } + + list_for_each_safe(lptr, tptr, &request_list) { + pq_p = list_entry(lptr, struct work_element, liste); + pq_p->retcode = -ENODEV; + pq_p->status[0] |= STAT_FAILED; + list_del_init(lptr); + requestq_count--; + pq_p->audit[1] |= FP_REMREQUEST; + pq_p->audit[1] |= FP_AWAKENING; + atomic_set(&pq_p->alarmrung, 1); + wake_up(&pq_p->waitq); + } +} + +static inline void +helper_timeout_requests(void) +{ + struct work_element *pq_p; + struct list_head *lptr, *tptr; + long timelimit; + + timelimit = jiffies - (CLEANUPTIME * HZ); + /* The list is in strict chronological order */ + list_for_each_safe(lptr, tptr, &pending_list) { + pq_p = list_entry(lptr, struct work_element, liste); + if (pq_p->requestsent >= timelimit) + break; + PRINTKW("Purging(PQ) PSMID %02X%02X%02X%02X%02X%02X%02X%02X\n", + ((struct caller *)pq_p->requestptr)->caller_id[0], + ((struct caller *)pq_p->requestptr)->caller_id[1], + ((struct caller *)pq_p->requestptr)->caller_id[2], + ((struct caller *)pq_p->requestptr)->caller_id[3], + ((struct caller *)pq_p->requestptr)->caller_id[4], + ((struct caller *)pq_p->requestptr)->caller_id[5], + ((struct caller *)pq_p->requestptr)->caller_id[6], + ((struct caller *)pq_p->requestptr)->caller_id[7]); + pq_p->retcode = -ETIMEOUT; + pq_p->status[0] |= STAT_FAILED; + /* get this off any caller queue it may be on */ + unbuild_caller(LONG2DEVPTR(pq_p->devindex), + (struct caller *) pq_p->requestptr); + list_del_init(lptr); + pendingq_count--; + pq_p->audit[1] |= FP_TIMEDOUT; + pq_p->audit[1] |= FP_NOTPENDING; + pq_p->audit[1] |= FP_AWAKENING; + atomic_set(&pq_p->alarmrung, 1); + wake_up(&pq_p->waitq); + } + + /** + * If pending count is zero, items left on the request queue may + * never be processed. + */ + if (pendingq_count <= 0) { + list_for_each_safe(lptr, tptr, &request_list) { + pq_p = list_entry(lptr, struct work_element, liste); + if (pq_p->requestsent >= timelimit) + break; + PRINTKW("Purging(RQ) PSMID %02X%02X%02X%02X%02X%02X%02X%02X\n", + ((struct caller *)pq_p->requestptr)->caller_id[0], + ((struct caller *)pq_p->requestptr)->caller_id[1], + ((struct caller *)pq_p->requestptr)->caller_id[2], + ((struct caller *)pq_p->requestptr)->caller_id[3], + ((struct caller *)pq_p->requestptr)->caller_id[4], + ((struct caller *)pq_p->requestptr)->caller_id[5], + ((struct caller *)pq_p->requestptr)->caller_id[6], + ((struct caller *)pq_p->requestptr)->caller_id[7]); + pq_p->retcode = -ETIMEOUT; + pq_p->status[0] |= STAT_FAILED; + list_del_init(lptr); + requestq_count--; + pq_p->audit[1] |= FP_TIMEDOUT; + pq_p->audit[1] |= FP_REMREQUEST; + pq_p->audit[1] |= FP_AWAKENING; + atomic_set(&pq_p->alarmrung, 1); + wake_up(&pq_p->waitq); + } + } +} + +static void +z90crypt_cleanup_task(unsigned long ptr) +{ + PDEBUG("jiffies %ld\n", jiffies); + spin_lock_irq(&queuespinlock); + if (z90crypt.mask.st_count <= 0) // no devices! + helper_drain_queues(); + else + helper_timeout_requests(); + spin_unlock_irq(&queuespinlock); + z90crypt_schedule_cleanup_task(); +} + +static void +z90crypt_schedule_reader_task(unsigned long ptr) +{ + tasklet_schedule(&reader_tasklet); +} + +/** + * Lowlevel Functions: + * + * create_z90crypt: creates and initializes basic data structures + * refresh_z90crypt: re-initializes basic data structures + * find_crypto_devices: returns a count and mask of hardware status + * create_crypto_device: builds the descriptor for a device + * destroy_crypto_device: unallocates the descriptor for a device + * destroy_z90crypt: drains all work, unallocates structs + */ + +/** + * build the z90crypt root structure using the given domain index + */ +static int +create_z90crypt(int *cdx_p) +{ + struct hdware_block *hdware_blk_p; + + memset(&z90crypt, 0x00, sizeof(struct z90crypt)); + z90crypt.domain_established = 0; + z90crypt.len = sizeof(struct z90crypt); + z90crypt.max_count = Z90CRYPT_NUM_DEVS; + z90crypt.cdx = *cdx_p; + + hdware_blk_p = (struct hdware_block *) + kmalloc(sizeof(struct hdware_block), GFP_ATOMIC); + if (!hdware_blk_p) { + PDEBUG("kmalloc for hardware block failed\n"); + return ENOMEM; + } + memset(hdware_blk_p, 0x00, sizeof(struct hdware_block)); + z90crypt.hdware_info = hdware_blk_p; + + return 0; +} + +static inline int +helper_scan_devices(int cdx_array[16], int *cdx_p, int *correct_cdx_found) +{ + enum hdstat hd_stat; + int q_depth, dev_type; + int indx, chkdom, numdomains; + + q_depth = dev_type = numdomains = 0; + for (chkdom = 0; chkdom <= 15; cdx_array[chkdom++] = -1); + for (indx = 0; indx < z90crypt.max_count; indx++) { + hd_stat = HD_NOT_THERE; + numdomains = 0; + for (chkdom = 0; chkdom <= 15; chkdom++) { + hd_stat = query_online(indx, chkdom, MAX_RESET, + &q_depth, &dev_type); + if (hd_stat == HD_TSQ_EXCEPTION) { + z90crypt.terminating = 1; + PRINTKC("exception taken!\n"); + break; + } + if (hd_stat == HD_ONLINE) { + cdx_array[numdomains++] = chkdom; + if (*cdx_p == chkdom) { + *correct_cdx_found = 1; + break; + } + } + } + if ((*correct_cdx_found == 1) || (numdomains != 0)) + break; + if (z90crypt.terminating) + break; + } + return numdomains; +} + +static inline int +probe_crypto_domain(int *cdx_p) +{ + int cdx_array[16]; + char cdx_array_text[53], temp[5]; + int correct_cdx_found, numdomains; + + correct_cdx_found = 0; + numdomains = helper_scan_devices(cdx_array, cdx_p, &correct_cdx_found); + + if (z90crypt.terminating) + return TSQ_FATAL_ERROR; + + if (correct_cdx_found) + return 0; + + if (numdomains == 0) { + PRINTKW("Unable to find crypto domain: No devices found\n"); + return Z90C_NO_DEVICES; + } + + if (numdomains == 1) { + if (*cdx_p == -1) { + *cdx_p = cdx_array[0]; + return 0; + } + PRINTKW("incorrect domain: specified = %d, found = %d\n", + *cdx_p, cdx_array[0]); + return Z90C_INCORRECT_DOMAIN; + } + + numdomains--; + sprintf(cdx_array_text, "%d", cdx_array[numdomains]); + while (numdomains) { + numdomains--; + sprintf(temp, ", %d", cdx_array[numdomains]); + strcat(cdx_array_text, temp); + } + + PRINTKW("ambiguous domain detected: specified = %d, found array = %s\n", + *cdx_p, cdx_array_text); + return Z90C_AMBIGUOUS_DOMAIN; +} + +static int +refresh_z90crypt(int *cdx_p) +{ + int i, j, indx, rv; + static struct status local_mask; + struct device *devPtr; + unsigned char oldStat, newStat; + int return_unchanged; + + if (z90crypt.len != sizeof(z90crypt)) + return ENOTINIT; + if (z90crypt.terminating) + return TSQ_FATAL_ERROR; + rv = 0; + if (!z90crypt.hdware_info->hdware_mask.st_count && + !z90crypt.domain_established) { + rv = probe_crypto_domain(cdx_p); + if (z90crypt.terminating) + return TSQ_FATAL_ERROR; + if (rv == Z90C_NO_DEVICES) + return 0; // try later + if (rv) + return rv; + z90crypt.cdx = *cdx_p; + z90crypt.domain_established = 1; + } + rv = find_crypto_devices(&local_mask); + if (rv) { + PRINTK("find crypto devices returned %d\n", rv); + return rv; + } + if (!memcmp(&local_mask, &z90crypt.hdware_info->hdware_mask, + sizeof(struct status))) { + return_unchanged = 1; + for (i = 0; i < Z90CRYPT_NUM_TYPES; i++) { + /** + * Check for disabled cards. If any device is marked + * disabled, destroy it. + */ + for (j = 0; + j < z90crypt.hdware_info->type_mask[i].st_count; + j++) { + indx = z90crypt.hdware_info->type_x_addr[i]. + device_index[j]; + devPtr = z90crypt.device_p[indx]; + if (devPtr && devPtr->disabled) { + local_mask.st_mask[indx] = HD_NOT_THERE; + return_unchanged = 0; + } + } + } + if (return_unchanged == 1) + return 0; + } + + spin_lock_irq(&queuespinlock); + for (i = 0; i < z90crypt.max_count; i++) { + oldStat = z90crypt.hdware_info->hdware_mask.st_mask[i]; + newStat = local_mask.st_mask[i]; + if ((oldStat == HD_ONLINE) && (newStat != HD_ONLINE)) + destroy_crypto_device(i); + else if ((oldStat != HD_ONLINE) && (newStat == HD_ONLINE)) { + rv = create_crypto_device(i); + if (rv >= REC_FATAL_ERROR) + return rv; + if (rv != 0) { + local_mask.st_mask[i] = HD_NOT_THERE; + local_mask.st_count--; + } + } + } + memcpy(z90crypt.hdware_info->hdware_mask.st_mask, local_mask.st_mask, + sizeof(local_mask.st_mask)); + z90crypt.hdware_info->hdware_mask.st_count = local_mask.st_count; + z90crypt.hdware_info->hdware_mask.disabled_count = + local_mask.disabled_count; + refresh_index_array(&z90crypt.mask, &z90crypt.overall_device_x); + for (i = 0; i < Z90CRYPT_NUM_TYPES; i++) + refresh_index_array(&(z90crypt.hdware_info->type_mask[i]), + &(z90crypt.hdware_info->type_x_addr[i])); + spin_unlock_irq(&queuespinlock); + + return rv; +} + +static int +find_crypto_devices(struct status *deviceMask) +{ + int i, q_depth, dev_type; + enum hdstat hd_stat; + + deviceMask->st_count = 0; + deviceMask->disabled_count = 0; + deviceMask->user_disabled_count = 0; + + for (i = 0; i < z90crypt.max_count; i++) { + hd_stat = query_online(i, z90crypt.cdx, MAX_RESET, &q_depth, + &dev_type); + if (hd_stat == HD_TSQ_EXCEPTION) { + z90crypt.terminating = 1; + PRINTKC("Exception during probe for crypto devices\n"); + return TSQ_FATAL_ERROR; + } + deviceMask->st_mask[i] = hd_stat; + if (hd_stat == HD_ONLINE) { + PDEBUG("Got an online crypto!: %d\n", i); + PDEBUG("Got a queue depth of %d\n", q_depth); + PDEBUG("Got a device type of %d\n", dev_type); + if (q_depth <= 0) + return TSQ_FATAL_ERROR; + deviceMask->st_count++; + z90crypt.q_depth_array[i] = q_depth; + z90crypt.dev_type_array[i] = dev_type; + } + } + + return 0; +} + +static int +refresh_index_array(struct status *status_str, struct device_x *index_array) +{ + int i, count; + enum devstat stat; + + i = -1; + count = 0; + do { + stat = status_str->st_mask[++i]; + if (stat == DEV_ONLINE) + index_array->device_index[count++] = i; + } while ((i < Z90CRYPT_NUM_DEVS) && (count < status_str->st_count)); + + return count; +} + +static int +create_crypto_device(int index) +{ + int rv, devstat, total_size; + struct device *dev_ptr; + struct status *type_str_p; + int deviceType; + + dev_ptr = z90crypt.device_p[index]; + if (!dev_ptr) { + total_size = sizeof(struct device) + + z90crypt.q_depth_array[index] * sizeof(int); + + dev_ptr = (struct device *) kmalloc(total_size, GFP_ATOMIC); + if (!dev_ptr) { + PRINTK("kmalloc device %d failed\n", index); + return ENOMEM; + } + memset(dev_ptr, 0, total_size); + dev_ptr->dev_resp_p = kmalloc(MAX_RESPONSE_SIZE, GFP_ATOMIC); + if (!dev_ptr->dev_resp_p) { + kfree(dev_ptr); + PRINTK("kmalloc device %d rec buffer failed\n", index); + return ENOMEM; + } + dev_ptr->dev_resp_l = MAX_RESPONSE_SIZE; + INIT_LIST_HEAD(&(dev_ptr->dev_caller_list)); + } + + devstat = reset_device(index, z90crypt.cdx, MAX_RESET); + if (devstat == DEV_RSQ_EXCEPTION) { + PRINTK("exception during reset device %d\n", index); + kfree(dev_ptr->dev_resp_p); + kfree(dev_ptr); + return RSQ_FATAL_ERROR; + } + if (devstat == DEV_ONLINE) { + dev_ptr->dev_self_x = index; + dev_ptr->dev_type = z90crypt.dev_type_array[index]; + if (dev_ptr->dev_type == NILDEV) { + rv = probe_device_type(dev_ptr); + if (rv) { + PRINTK("rv = %d from probe_device_type %d\n", + rv, index); + kfree(dev_ptr->dev_resp_p); + kfree(dev_ptr); + return rv; + } + } + if (dev_ptr->dev_type == PCIXCC_UNK) { + rv = probe_PCIXCC_type(dev_ptr); + if (rv) { + PRINTK("rv = %d from probe_PCIXCC_type %d\n", + rv, index); + kfree(dev_ptr->dev_resp_p); + kfree(dev_ptr); + return rv; + } + } + deviceType = dev_ptr->dev_type; + z90crypt.dev_type_array[index] = deviceType; + if (deviceType == PCICA) + z90crypt.hdware_info->device_type_array[index] = 1; + else if (deviceType == PCICC) + z90crypt.hdware_info->device_type_array[index] = 2; + else if (deviceType == PCIXCC_MCL2) + z90crypt.hdware_info->device_type_array[index] = 3; + else if (deviceType == PCIXCC_MCL3) + z90crypt.hdware_info->device_type_array[index] = 4; + else if (deviceType == CEX2C) + z90crypt.hdware_info->device_type_array[index] = 5; + else + z90crypt.hdware_info->device_type_array[index] = -1; + } + + /** + * 'q_depth' returned by the hardware is one less than + * the actual depth + */ + dev_ptr->dev_q_depth = z90crypt.q_depth_array[index]; + dev_ptr->dev_type = z90crypt.dev_type_array[index]; + dev_ptr->dev_stat = devstat; + dev_ptr->disabled = 0; + z90crypt.device_p[index] = dev_ptr; + + if (devstat == DEV_ONLINE) { + if (z90crypt.mask.st_mask[index] != DEV_ONLINE) { + z90crypt.mask.st_mask[index] = DEV_ONLINE; + z90crypt.mask.st_count++; + } + deviceType = dev_ptr->dev_type; + type_str_p = &z90crypt.hdware_info->type_mask[deviceType]; + if (type_str_p->st_mask[index] != DEV_ONLINE) { + type_str_p->st_mask[index] = DEV_ONLINE; + type_str_p->st_count++; + } + } + + return 0; +} + +static int +destroy_crypto_device(int index) +{ + struct device *dev_ptr; + int t, disabledFlag; + + dev_ptr = z90crypt.device_p[index]; + + /* remember device type; get rid of device struct */ + if (dev_ptr) { + disabledFlag = dev_ptr->disabled; + t = dev_ptr->dev_type; + if (dev_ptr->dev_resp_p) + kfree(dev_ptr->dev_resp_p); + kfree(dev_ptr); + } else { + disabledFlag = 0; + t = -1; + } + z90crypt.device_p[index] = 0; + + /* if the type is valid, remove the device from the type_mask */ + if ((t != -1) && z90crypt.hdware_info->type_mask[t].st_mask[index]) { + z90crypt.hdware_info->type_mask[t].st_mask[index] = 0x00; + z90crypt.hdware_info->type_mask[t].st_count--; + if (disabledFlag == 1) + z90crypt.hdware_info->type_mask[t].disabled_count--; + } + if (z90crypt.mask.st_mask[index] != DEV_GONE) { + z90crypt.mask.st_mask[index] = DEV_GONE; + z90crypt.mask.st_count--; + } + z90crypt.hdware_info->device_type_array[index] = 0; + + return 0; +} + +static void +destroy_z90crypt(void) +{ + int i; + for (i = 0; i < z90crypt.max_count; i++) + if (z90crypt.device_p[i]) + destroy_crypto_device(i); + if (z90crypt.hdware_info) + kfree((void *)z90crypt.hdware_info); + memset((void *)&z90crypt, 0, sizeof(z90crypt)); +} + +static unsigned char static_testmsg[384] = { +0x00,0x00,0x00,0x00,0x01,0x02,0x03,0x04,0x05,0x06,0x07,0x08,0x00,0x06,0x00,0x00, +0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x58, +0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x01,0x00,0x43,0x43, +0x41,0x2d,0x41,0x50,0x50,0x4c,0x20,0x20,0x20,0x01,0x01,0x01,0x00,0x00,0x00,0x00, +0x50,0x4b,0x00,0x00,0x00,0x00,0x01,0x1c,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, +0x00,0x00,0x00,0x00,0x00,0x00,0x05,0xb8,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, +0x00,0x00,0x00,0x00,0x70,0x00,0x41,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x54,0x32, +0x01,0x00,0xa0,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, +0xb8,0x05,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, +0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, +0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, +0x00,0x00,0x00,0x00,0x00,0x00,0x0a,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, +0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x08,0x00,0x49,0x43,0x53,0x46, +0x20,0x20,0x20,0x20,0x50,0x4b,0x0a,0x00,0x50,0x4b,0x43,0x53,0x2d,0x31,0x2e,0x32, +0x37,0x00,0x11,0x22,0x33,0x44,0x55,0x66,0x77,0x88,0x99,0x00,0x11,0x22,0x33,0x44, +0x55,0x66,0x77,0x88,0x99,0x00,0x11,0x22,0x33,0x44,0x55,0x66,0x77,0x88,0x99,0x00, +0x11,0x22,0x33,0x44,0x55,0x66,0x77,0x88,0x99,0x00,0x11,0x22,0x33,0x44,0x55,0x66, +0x77,0x88,0x99,0x00,0x11,0x22,0x33,0x5d,0x00,0x5b,0x00,0x77,0x88,0x1e,0x00,0x00, +0x57,0x00,0x00,0x00,0x00,0x04,0x00,0x00,0x4f,0x00,0x00,0x00,0x03,0x02,0x00,0x00, +0x40,0x01,0x00,0x01,0xce,0x02,0x68,0x2d,0x5f,0xa9,0xde,0x0c,0xf6,0xd2,0x7b,0x58, +0x4b,0xf9,0x28,0x68,0x3d,0xb4,0xf4,0xef,0x78,0xd5,0xbe,0x66,0x63,0x42,0xef,0xf8, +0xfd,0xa4,0xf8,0xb0,0x8e,0x29,0xc2,0xc9,0x2e,0xd8,0x45,0xb8,0x53,0x8c,0x6f,0x4e, +0x72,0x8f,0x6c,0x04,0x9c,0x88,0xfc,0x1e,0xc5,0x83,0x55,0x57,0xf7,0xdd,0xfd,0x4f, +0x11,0x36,0x95,0x5d,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00 +}; + +static int +probe_device_type(struct device *devPtr) +{ + int rv, dv, i, index, length; + unsigned char psmid[8]; + static unsigned char loc_testmsg[sizeof(static_testmsg)]; + + index = devPtr->dev_self_x; + rv = 0; + do { + memcpy(loc_testmsg, static_testmsg, sizeof(static_testmsg)); + length = sizeof(static_testmsg) - 24; + /* the -24 allows for the header */ + dv = send_to_AP(index, z90crypt.cdx, length, loc_testmsg); + if (dv) { + PDEBUG("dv returned by send during probe: %d\n", dv); + if (dv == DEV_SEN_EXCEPTION) { + rv = SEN_FATAL_ERROR; + PRINTKC("exception in send to AP %d\n", index); + break; + } + PDEBUG("return value from send_to_AP: %d\n", rv); + switch (dv) { + case DEV_GONE: + PDEBUG("dev %d not available\n", index); + rv = SEN_NOT_AVAIL; + break; + case DEV_ONLINE: + rv = 0; + break; + case DEV_EMPTY: + rv = SEN_NOT_AVAIL; + break; + case DEV_NO_WORK: + rv = SEN_FATAL_ERROR; + break; + case DEV_BAD_MESSAGE: + rv = SEN_USER_ERROR; + break; + case DEV_QUEUE_FULL: + rv = SEN_QUEUE_FULL; + break; + default: + PRINTK("unknown dv=%d for dev %d\n", dv, index); + rv = SEN_NOT_AVAIL; + break; + } + } + + if (rv) + break; + + for (i = 0; i < 6; i++) { + mdelay(300); + dv = receive_from_AP(index, z90crypt.cdx, + devPtr->dev_resp_l, + devPtr->dev_resp_p, psmid); + PDEBUG("dv returned by DQ = %d\n", dv); + if (dv == DEV_REC_EXCEPTION) { + rv = REC_FATAL_ERROR; + PRINTKC("exception in dequeue %d\n", + index); + break; + } + switch (dv) { + case DEV_ONLINE: + rv = 0; + break; + case DEV_EMPTY: + rv = REC_EMPTY; + break; + case DEV_NO_WORK: + rv = REC_NO_WORK; + break; + case DEV_BAD_MESSAGE: + case DEV_GONE: + default: + rv = REC_NO_RESPONSE; + break; + } + if ((rv != 0) && (rv != REC_NO_WORK)) + break; + if (rv == 0) + break; + } + if (rv) + break; + rv = (devPtr->dev_resp_p[0] == 0x00) && + (devPtr->dev_resp_p[1] == 0x86); + if (rv) + devPtr->dev_type = PCICC; + else + devPtr->dev_type = PCICA; + rv = 0; + } while (0); + /* In a general error case, the card is not marked online */ + return rv; +} + +static unsigned char MCL3_testmsg[] = { +0x00,0x00,0x00,0x00,0xEE,0xEE,0xEE,0xEE,0xEE,0xEE,0xEE,0xEE, +0x00,0x06,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, +0x00,0x00,0x00,0x58,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, +0x43,0x41,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, +0x00,0x00,0x00,0x00,0x50,0x4B,0x00,0x00,0x00,0x00,0x01,0xC4,0x00,0x00,0x00,0x00, +0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x07,0x24,0x00,0x00,0x00,0x00, +0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xDC,0x02,0x00,0x00,0x00,0x54,0x32, +0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xE8,0x00,0x00,0x00,0x00,0x00,0x00,0x07,0x24, +0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, +0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, +0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, +0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, +0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, +0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, +0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, +0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, +0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, +0x00,0x00,0x00,0x04,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, +0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, +0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, +0x00,0x00,0x00,0x00,0x50,0x4B,0x00,0x0A,0x4D,0x52,0x50,0x20,0x20,0x20,0x20,0x20, +0x00,0x42,0x00,0x01,0x02,0x03,0x04,0x05,0x06,0x07,0x08,0x09,0x0A,0x0B,0x0C,0x0D, +0x0E,0x0F,0x00,0x11,0x22,0x33,0x44,0x55,0x66,0x77,0x88,0x99,0xAA,0xBB,0xCC,0xDD, +0xEE,0xFF,0xFF,0xEE,0xDD,0xCC,0xBB,0xAA,0x99,0x88,0x77,0x66,0x55,0x44,0x33,0x22, +0x11,0x00,0x01,0x23,0x45,0x67,0x89,0xAB,0xCD,0xEF,0xFE,0xDC,0xBA,0x98,0x76,0x54, +0x32,0x10,0x00,0x9A,0x00,0x98,0x00,0x00,0x1E,0x00,0x00,0x94,0x00,0x00,0x00,0x00, +0x04,0x00,0x00,0x8C,0x00,0x00,0x00,0x40,0x02,0x00,0x00,0x40,0xBA,0xE8,0x23,0x3C, +0x75,0xF3,0x91,0x61,0xD6,0x73,0x39,0xCF,0x7B,0x6D,0x8E,0x61,0x97,0x63,0x9E,0xD9, +0x60,0x55,0xD6,0xC7,0xEF,0xF8,0x1E,0x63,0x95,0x17,0xCC,0x28,0x45,0x60,0x11,0xC5, +0xC4,0x4E,0x66,0xC6,0xE6,0xC3,0xDE,0x8A,0x19,0x30,0xCF,0x0E,0xD7,0xAA,0xDB,0x01, +0xD8,0x00,0xBB,0x8F,0x39,0x9F,0x64,0x28,0xF5,0x7A,0x77,0x49,0xCC,0x6B,0xA3,0x91, +0x97,0x70,0xE7,0x60,0x1E,0x39,0xE1,0xE5,0x33,0xE1,0x15,0x63,0x69,0x08,0x80,0x4C, +0x67,0xC4,0x41,0x8F,0x48,0xDF,0x26,0x98,0xF1,0xD5,0x8D,0x88,0xD9,0x6A,0xA4,0x96, +0xC5,0x84,0xD9,0x30,0x49,0x67,0x7D,0x19,0xB1,0xB3,0x45,0x4D,0xB2,0x53,0x9A,0x47, +0x3C,0x7C,0x55,0xBF,0xCC,0x85,0x00,0x36,0xF1,0x3D,0x93,0x53 +}; + +static int +probe_PCIXCC_type(struct device *devPtr) +{ + int rv, dv, i, index, length; + unsigned char psmid[8]; + static unsigned char loc_testmsg[548]; + struct CPRBX *cprbx_p; + + index = devPtr->dev_self_x; + rv = 0; + do { + memcpy(loc_testmsg, MCL3_testmsg, sizeof(MCL3_testmsg)); + length = sizeof(MCL3_testmsg) - 0x0C; + dv = send_to_AP(index, z90crypt.cdx, length, loc_testmsg); + if (dv) { + PDEBUG("dv returned = %d\n", dv); + if (dv == DEV_SEN_EXCEPTION) { + rv = SEN_FATAL_ERROR; + PRINTKC("exception in send to AP %d\n", index); + break; + } + PDEBUG("return value from send_to_AP: %d\n", rv); + switch (dv) { + case DEV_GONE: + PDEBUG("dev %d not available\n", index); + rv = SEN_NOT_AVAIL; + break; + case DEV_ONLINE: + rv = 0; + break; + case DEV_EMPTY: + rv = SEN_NOT_AVAIL; + break; + case DEV_NO_WORK: + rv = SEN_FATAL_ERROR; + break; + case DEV_BAD_MESSAGE: + rv = SEN_USER_ERROR; + break; + case DEV_QUEUE_FULL: + rv = SEN_QUEUE_FULL; + break; + default: + PRINTK("unknown dv=%d for dev %d\n", dv, index); + rv = SEN_NOT_AVAIL; + break; + } + } + + if (rv) + break; + + for (i = 0; i < 6; i++) { + mdelay(300); + dv = receive_from_AP(index, z90crypt.cdx, + devPtr->dev_resp_l, + devPtr->dev_resp_p, psmid); + PDEBUG("dv returned by DQ = %d\n", dv); + if (dv == DEV_REC_EXCEPTION) { + rv = REC_FATAL_ERROR; + PRINTKC("exception in dequeue %d\n", + index); + break; + } + switch (dv) { + case DEV_ONLINE: + rv = 0; + break; + case DEV_EMPTY: + rv = REC_EMPTY; + break; + case DEV_NO_WORK: + rv = REC_NO_WORK; + break; + case DEV_BAD_MESSAGE: + case DEV_GONE: + default: + rv = REC_NO_RESPONSE; + break; + } + if ((rv != 0) && (rv != REC_NO_WORK)) + break; + if (rv == 0) + break; + } + if (rv) + break; + cprbx_p = (struct CPRBX *) (devPtr->dev_resp_p + 48); + if ((cprbx_p->ccp_rtcode == 8) && (cprbx_p->ccp_rscode == 33)) { + devPtr->dev_type = PCIXCC_MCL2; + PDEBUG("device %d is MCL2\n", index); + } else { + devPtr->dev_type = PCIXCC_MCL3; + PDEBUG("device %d is MCL3\n", index); + } + } while (0); + /* In a general error case, the card is not marked online */ + return rv; +} + +#ifdef Z90CRYPT_USE_HOTPLUG +static void +z90crypt_hotplug_event(int dev_major, int dev_minor, int action) +{ +#ifdef CONFIG_HOTPLUG + char *argv[3]; + char *envp[6]; + char major[20]; + char minor[20]; + + sprintf(major, "MAJOR=%d", dev_major); + sprintf(minor, "MINOR=%d", dev_minor); + + argv[0] = hotplug_path; + argv[1] = "z90crypt"; + argv[2] = 0; + + envp[0] = "HOME=/"; + envp[1] = "PATH=/sbin:/bin:/usr/sbin:/usr/bin"; + + switch (action) { + case Z90CRYPT_HOTPLUG_ADD: + envp[2] = "ACTION=add"; + break; + case Z90CRYPT_HOTPLUG_REMOVE: + envp[2] = "ACTION=remove"; + break; + default: + BUG(); + break; + } + envp[3] = major; + envp[4] = minor; + envp[5] = 0; + + call_usermodehelper(argv[0], argv, envp, 0); +#endif +} +#endif + +module_init(z90crypt_init_module); +module_exit(z90crypt_cleanup_module); -- cgit v1.2.3