cregit-Linux how code gets into the kernel

Release 4.11 drivers/s390/crypto/zcrypt_msgtype6.c

/*
 *  zcrypt 2.1.0
 *
 *  Copyright IBM Corp. 2001, 2012
 *  Author(s): Robert Burroughs
 *             Eric Rossman (edrossma@us.ibm.com)
 *
 *  Hotplug & misc device support: Jochen Roehrig (roehrig@de.ibm.com)
 *  Major cleanup & driver split: Martin Schwidefsky <schwidefsky@de.ibm.com>
 *                                Ralph Wuerthner <rwuerthn@de.ibm.com>
 *  MSGTYPE restruct:             Holger Dengler <hd@linux.vnet.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.
 */


#define KMSG_COMPONENT "zcrypt"

#define pr_fmt(fmt) KMSG_COMPONENT ": " fmt

#include <linux/module.h>
#include <linux/init.h>
#include <linux/err.h>
#include <linux/delay.h>
#include <linux/slab.h>
#include <linux/atomic.h>
#include <linux/uaccess.h>

#include "ap_bus.h"
#include "zcrypt_api.h"
#include "zcrypt_error.h"
#include "zcrypt_msgtype6.h"
#include "zcrypt_cca_key.h"


#define PCIXCC_MIN_MOD_SIZE_OLD	 64	
/*  512 bits    */

#define PCIXCC_MAX_ICA_RESPONSE_SIZE 0x77c 
/* max size type86 v2 reply         */


#define CEIL4(x) ((((x)+3)/4)*4)


struct response_type {
	
struct completion work;
	
int type;
};

#define PCIXCC_RESPONSE_TYPE_ICA  0

#define PCIXCC_RESPONSE_TYPE_XCRB 1

#define PCIXCC_RESPONSE_TYPE_EP11 2

MODULE_AUTHOR("IBM Corporation");
MODULE_DESCRIPTION("Cryptographic Coprocessor (message type 6), " \
		   "Copyright IBM Corp. 2001, 2012");
MODULE_LICENSE("GPL");

/**
 * CPRB
 *        Note that all shorts, ints and longs are little-endian.
 *        All pointer fields are 32-bits long, and mean nothing
 *
 *        A request CPRB is followed by a request_parameter_block.
 *
 *        The request (or reply) parameter block is organized thus:
 *          function code
 *          VUD block
 *          key block
 */

struct CPRB {
	
unsigned short cprb_len;	/* CPRB length                   */
	
unsigned char cprb_ver_id;	/* CPRB version id.              */
	
unsigned char pad_000;		/* Alignment pad byte.           */
	
unsigned char srpi_rtcode[4];	/* SRPI return code LELONG       */
	
unsigned char srpi_verb;	/* SRPI verb type                */
	
unsigned char flags;		/* flags                         */
	
unsigned char func_id[2];	/* function id                   */
	
unsigned char checkpoint_flag;	/*                               */
	
unsigned char resv2;		/* reserved                      */
	
unsigned short req_parml;	/* request parameter buffer      */
					/* length 16-bit little endian   */
	
unsigned char req_parmp[4];	/* request parameter buffer      *
                                         * pointer (means nothing: the   *
                                         * parameter buffer follows      *
                                         * the CPRB).                    */
	
unsigned char req_datal[4];	/* request data buffer           */
					/* length         ULELONG        */
	
unsigned char req_datap[4];	/* request data buffer           */
					/* pointer                       */
	
unsigned short rpl_parml;	/* reply  parameter buffer       */
					/* length 16-bit little endian   */
	
unsigned char pad_001[2];	/* Alignment pad bytes. ULESHORT */
	
unsigned char rpl_parmp[4];	/* reply parameter buffer        *
                                         * pointer (means nothing: the   *
                                         * parameter buffer follows      *
                                         * the CPRB).                    */
	
unsigned char rpl_datal[4];	/* reply data buffer len ULELONG */
	
unsigned char rpl_datap[4];	/* reply data buffer             */
					/* pointer                       */
	
unsigned short ccp_rscode;	/* server reason code   ULESHORT */
	
unsigned short ccp_rtcode;	/* server return code   ULESHORT */
	
unsigned char repd_parml[2];	/* replied parameter len ULESHORT*/
	
unsigned char mac_data_len[2];	/* Mac Data Length      ULESHORT */
	
unsigned char repd_datal[4];	/* replied data length  ULELONG  */
	
unsigned char req_pc[2];	/* PC identifier                 */
	
unsigned char res_origin[8];	/* resource origin               */
	
unsigned char mac_value[8];	/* Mac Value                     */
	
unsigned char logon_id[8];	/* Logon Identifier              */
	
unsigned char usage_domain[2];	/* cdx                           */
	
unsigned char resv3[18];	/* reserved for requestor        */
	
unsigned short svr_namel;	/* server name length  ULESHORT  */
	
unsigned char svr_name[8];	/* server name                   */
} 
__packed;


struct function_and_rules_block {
	
unsigned char function_code[2];
	
unsigned short ulen;
	
unsigned char only_rule[8];
} 
__packed;

/**
 * The following is used to initialize the CPRBX passed to the PCIXCC/CEX2C
 * card in a type6 message. The 3 fields that must be filled in at execution
 * time are  req_parml, rpl_parml and usage_domain.
 * Everything about this interface is ascii/big-endian, since the
 * device does *not* have 'Intel inside'.
 *
 * The CPRBX is followed immediately by the parm block.
 * The parm block contains:
 * - function code ('PD' 0x5044 or 'PK' 0x504B)
 * - rule block (one of:)
 *   + 0x000A 'PKCS-1.2' (MCL2 'PD')
 *   + 0x000A 'ZERO-PAD' (MCL2 'PK')
 *   + 0x000A 'ZERO-PAD' (MCL3 'PD' or CEX2C 'PD')
 *   + 0x000A 'MRP     ' (MCL3 'PK' or CEX2C 'PK')
 * - VUD block
 */

static struct CPRBX static_cprbx = {
	.cprb_len	=  0x00DC,
	.cprb_ver_id	=  0x02,
	.func_id	= {0x54, 0x32},
};


int speed_idx_cca(int req_type) { switch (req_type) { case 0x4142: case 0x4149: case 0x414D: case 0x4341: case 0x4344: case 0x4354: case 0x4358: case 0x444B: case 0x4558: case 0x4643: case 0x4651: case 0x4C47: case 0x4C4B: case 0x4C51: case 0x4F48: case 0x504F: case 0x5053: case 0x5058: case 0x5343: case 0x5344: case 0x5345: case 0x5350: return LOW; case 0x414B: case 0x4345: case 0x4349: case 0x434D: case 0x4847: case 0x4849: case 0x484D: case 0x4850: case 0x4851: case 0x4954: case 0x4958: case 0x4B43: case 0x4B44: case 0x4B45: case 0x4B47: case 0x4B48: case 0x4B49: case 0x4B4E: case 0x4B50: case 0x4B52: case 0x4B54: case 0x4B58: case 0x4D50: case 0x4D53: case 0x4D56: case 0x4D58: case 0x5044: case 0x5045: case 0x5046: case 0x5047: case 0x5049: case 0x504B: case 0x504D: case 0x5254: case 0x5347: case 0x5349: case 0x534B: case 0x534D: case 0x5356: case 0x5358: case 0x5443: case 0x544B: case 0x5647: return HIGH; default: return MEDIUM; } }

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Ingo Tuchscherer219100.00%1100.00%
Total219100.00%1100.00%


int speed_idx_ep11(int req_type) { switch (req_type) { case 1: case 2: case 36: case 37: case 38: case 39: case 40: return LOW; case 17: case 18: case 19: case 20: case 21: case 22: case 26: case 30: case 31: case 32: case 33: case 34: case 35: return HIGH; default: return MEDIUM; } }

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Ingo Tuchscherer84100.00%1100.00%
Total84100.00%1100.00%

/** * Convert a ICAMEX message to a type6 MEX message. * * @zq: crypto device pointer * @ap_msg: pointer to AP message * @mex: pointer to user input data * * Returns 0 on success or -EFAULT. */
static int ICAMEX_msg_to_type6MEX_msgX(struct zcrypt_queue *zq, struct ap_message *ap_msg, struct ica_rsa_modexpo *mex) { static struct type6_hdr static_type6_hdrX = { .type = 0x06, .offset1 = 0x00000058, .agent_id = {'C', 'A',}, .function_code = {'P', 'K'}, }; static struct function_and_rules_block static_pke_fnr = { .function_code = {'P', 'K'}, .ulen = 10, .only_rule = {'M', 'R', 'P', ' ', ' ', ' ', ' ', ' '} }; struct { struct type6_hdr hdr; struct CPRBX cprbx; struct function_and_rules_block fr; unsigned short length; char text[0]; } __packed * msg = ap_msg->message; int size; /* VUD.ciphertext */ msg->length = mex->inputdatalength + 2; if (copy_from_user(msg->text, mex->inputdata, mex->inputdatalength)) return -EFAULT; /* Set up key which is located after the variable length text. */ size = zcrypt_type6_mex_key_en(mex, msg->text+mex->inputdatalength, 1); if (size < 0) return size; size += sizeof(*msg) + mex->inputdatalength; /* message header, cprbx and f&r */ msg->hdr = static_type6_hdrX; msg->hdr.ToCardLen1 = size - sizeof(msg->hdr); msg->hdr.FromCardLen1 = PCIXCC_MAX_ICA_RESPONSE_SIZE - sizeof(msg->hdr); msg->cprbx = static_cprbx; msg->cprbx.domain = AP_QID_QUEUE(zq->queue->qid); msg->cprbx.rpl_msgbl = msg->hdr.FromCardLen1; msg->fr = static_pke_fnr; msg->cprbx.req_parml = size - sizeof(msg->hdr) - sizeof(msg->cprbx); ap_msg->length = size; return 0; }

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Holger Dengler30898.72%150.00%
Ingo Tuchscherer41.28%150.00%
Total312100.00%2100.00%

/** * Convert a ICACRT message to a type6 CRT message. * * @zq: crypto device pointer * @ap_msg: pointer to AP message * @crt: pointer to user input data * * Returns 0 on success or -EFAULT. */
static int ICACRT_msg_to_type6CRT_msgX(struct zcrypt_queue *zq, struct ap_message *ap_msg, struct ica_rsa_modexpo_crt *crt) { static struct type6_hdr static_type6_hdrX = { .type = 0x06, .offset1 = 0x00000058, .agent_id = {'C', 'A',}, .function_code = {'P', 'D'}, }; static struct function_and_rules_block static_pkd_fnr = { .function_code = {'P', 'D'}, .ulen = 10, .only_rule = {'Z', 'E', 'R', 'O', '-', 'P', 'A', 'D'} }; struct { struct type6_hdr hdr; struct CPRBX cprbx; struct function_and_rules_block fr; unsigned short length; char text[0]; } __packed * msg = ap_msg->message; int size; /* VUD.ciphertext */ msg->length = crt->inputdatalength + 2; if (copy_from_user(msg->text, crt->inputdata, crt->inputdatalength)) return -EFAULT; /* Set up key which is located after the variable length text. */ size = zcrypt_type6_crt_key(crt, msg->text + crt->inputdatalength, 1); if (size < 0) return size; size += sizeof(*msg) + crt->inputdatalength; /* total size of msg */ /* message header, cprbx and f&r */ msg->hdr = static_type6_hdrX; msg->hdr.ToCardLen1 = size - sizeof(msg->hdr); msg->hdr.FromCardLen1 = PCIXCC_MAX_ICA_RESPONSE_SIZE - sizeof(msg->hdr); msg->cprbx = static_cprbx; msg->cprbx.domain = AP_QID_QUEUE(zq->queue->qid); msg->cprbx.req_parml = msg->cprbx.rpl_msgbl = size - sizeof(msg->hdr) - sizeof(msg->cprbx); msg->fr = static_pkd_fnr; ap_msg->length = size; return 0; }

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Holger Dengler30398.70%150.00%
Ingo Tuchscherer41.30%150.00%
Total307100.00%2100.00%

/** * Convert a XCRB message to a type6 CPRB message. * * @zq: crypto device pointer * @ap_msg: pointer to AP message * @xcRB: pointer to user input data * * Returns 0 on success or -EFAULT, -EINVAL. */ struct type86_fmt2_msg { struct type86_hdr hdr; struct type86_fmt2_ext fmt2; } __packed;
static int XCRB_msg_to_type6CPRB_msgX(struct ap_message *ap_msg, struct ica_xcRB *xcRB, unsigned int *fcode, unsigned short **dom) { static struct type6_hdr static_type6_hdrX = { .type = 0x06, .offset1 = 0x00000058, }; struct { struct type6_hdr hdr; struct CPRBX cprbx; } __packed * msg = ap_msg->message; int rcblen = CEIL4(xcRB->request_control_blk_length); int replylen, req_sumlen, resp_sumlen; char *req_data = ap_msg->message + sizeof(struct type6_hdr) + rcblen; char *function_code; if (CEIL4(xcRB->request_control_blk_length) < xcRB->request_control_blk_length) return -EINVAL; /* overflow after alignment*/ /* length checks */ ap_msg->length = sizeof(struct type6_hdr) + CEIL4(xcRB->request_control_blk_length) + xcRB->request_data_length; if (ap_msg->length > MSGTYPE06_MAX_MSG_SIZE) return -EINVAL; /* Overflow check sum must be greater (or equal) than the largest operand */ req_sumlen = CEIL4(xcRB->request_control_blk_length) + xcRB->request_data_length; if ((CEIL4(xcRB->request_control_blk_length) <= xcRB->request_data_length) ? (req_sumlen < xcRB->request_data_length) : (req_sumlen < CEIL4(xcRB->request_control_blk_length))) { return -EINVAL; } if (CEIL4(xcRB->reply_control_blk_length) < xcRB->reply_control_blk_length) return -EINVAL; /* overflow after alignment*/ replylen = sizeof(struct type86_fmt2_msg) + CEIL4(xcRB->reply_control_blk_length) + xcRB->reply_data_length; if (replylen > MSGTYPE06_MAX_MSG_SIZE) return -EINVAL; /* Overflow check sum must be greater (or equal) than the largest operand */ resp_sumlen = CEIL4(xcRB->reply_control_blk_length) + xcRB->reply_data_length; if ((CEIL4(xcRB->reply_control_blk_length) <= xcRB->reply_data_length) ? (resp_sumlen < xcRB->reply_data_length) : (resp_sumlen < CEIL4(xcRB->reply_control_blk_length))) { return -EINVAL; } /* prepare type6 header */ msg->hdr = static_type6_hdrX; memcpy(msg->hdr.agent_id , &(xcRB->agent_ID), sizeof(xcRB->agent_ID)); msg->hdr.ToCardLen1 = xcRB->request_control_blk_length; if (xcRB->request_data_length) { msg->hdr.offset2 = msg->hdr.offset1 + rcblen; msg->hdr.ToCardLen2 = xcRB->request_data_length; } msg->hdr.FromCardLen1 = xcRB->reply_control_blk_length; msg->hdr.FromCardLen2 = xcRB->reply_data_length; /* prepare CPRB */ if (copy_from_user(&(msg->cprbx), xcRB->request_control_blk_addr, xcRB->request_control_blk_length)) return -EFAULT; if (msg->cprbx.cprb_len + sizeof(msg->hdr.function_code) > xcRB->request_control_blk_length) return -EINVAL; function_code = ((unsigned char *)&msg->cprbx) + msg->cprbx.cprb_len; memcpy(msg->hdr.function_code, function_code, sizeof(msg->hdr.function_code)); *fcode = (msg->hdr.function_code[0] << 8) | msg->hdr.function_code[1]; *dom = (unsigned short *)&msg->cprbx.domain; if (memcmp(function_code, "US", 2) == 0) ap_msg->special = 1; else ap_msg->special = 0; /* copy data block */ if (xcRB->request_data_length && copy_from_user(req_data, xcRB->request_data_address, xcRB->request_data_length)) return -EFAULT; return 0; }

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Holger Dengler38365.81%120.00%
Ingo Tuchscherer19934.19%480.00%
Total582100.00%5100.00%


static int xcrb_msg_to_type6_ep11cprb_msgx(struct ap_message *ap_msg, struct ep11_urb *xcRB, unsigned int *fcode) { unsigned int lfmt; static struct type6_hdr static_type6_ep11_hdr = { .type = 0x06, .rqid = {0x00, 0x01}, .function_code = {0x00, 0x00}, .agent_id[0] = 0x58, /* {'X'} */ .agent_id[1] = 0x43, /* {'C'} */ .offset1 = 0x00000058, }; struct { struct type6_hdr hdr; struct ep11_cprb cprbx; unsigned char pld_tag; /* fixed value 0x30 */ unsigned char pld_lenfmt; /* payload length format */ } __packed * msg = ap_msg->message; struct pld_hdr { unsigned char func_tag; /* fixed value 0x4 */ unsigned char func_len; /* fixed value 0x4 */ unsigned int func_val; /* function ID */ unsigned char dom_tag; /* fixed value 0x4 */ unsigned char dom_len; /* fixed value 0x4 */ unsigned int dom_val; /* domain id */ } __packed * payload_hdr = NULL; if (CEIL4(xcRB->req_len) < xcRB->req_len) return -EINVAL; /* overflow after alignment*/ /* length checks */ ap_msg->length = sizeof(struct type6_hdr) + xcRB->req_len; if (CEIL4(xcRB->req_len) > MSGTYPE06_MAX_MSG_SIZE - (sizeof(struct type6_hdr))) return -EINVAL; if (CEIL4(xcRB->resp_len) < xcRB->resp_len) return -EINVAL; /* overflow after alignment*/ if (CEIL4(xcRB->resp_len) > MSGTYPE06_MAX_MSG_SIZE - (sizeof(struct type86_fmt2_msg))) return -EINVAL; /* prepare type6 header */ msg->hdr = static_type6_ep11_hdr; msg->hdr.ToCardLen1 = xcRB->req_len; msg->hdr.FromCardLen1 = xcRB->resp_len; /* Import CPRB data from the ioctl input parameter */ if (copy_from_user(&(msg->cprbx.cprb_len), (char __force __user *)xcRB->req, xcRB->req_len)) { return -EFAULT; } if ((msg->pld_lenfmt & 0x80) == 0x80) { /*ext.len.fmt 2 or 3*/ switch (msg->pld_lenfmt & 0x03) { case 1: lfmt = 2; break; case 2: lfmt = 3; break; default: return -EINVAL; } } else { lfmt = 1; /* length format #1 */ } payload_hdr = (struct pld_hdr *)((&(msg->pld_lenfmt))+lfmt); *fcode = payload_hdr->func_val & 0xFFFF; return 0; }

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Ingo Tuchscherer37495.41%480.00%
Holger Dengler184.59%120.00%
Total392100.00%5100.00%

/** * Copy results from a type 86 ICA reply message back to user space. * * @zq: crypto device pointer * @reply: reply AP message. * @data: pointer to user output data * @length: size of user output data * * Returns 0 on success or -EINVAL, -EFAULT, -EAGAIN in case of an error. */ struct type86x_reply { struct type86_hdr hdr; struct type86_fmt2_ext fmt2; struct CPRBX cprbx; unsigned char pad[4]; /* 4 byte function code/rules block ? */ unsigned short length; char text[0]; } __packed; struct type86_ep11_reply { struct type86_hdr hdr; struct type86_fmt2_ext fmt2; struct ep11_cprb cprbx; } __packed;
static int convert_type86_ica(struct zcrypt_queue *zq, struct ap_message *reply, char __user *outputdata, unsigned int outputdatalength) { static unsigned char static_pad[] = { 0x00, 0x02, 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 }; struct type86x_reply *msg = reply->message; unsigned short service_rc, service_rs; unsigned int reply_len, pad_len; char *data; service_rc = msg->cprbx.ccp_rtcode; if (unlikely(service_rc != 0)) { service_rs = msg->cprbx.ccp_rscode; if ((service_rc == 8 && service_rs == 66) || (service_rc == 8 && service_rs == 65) || (service_rc == 8 && service_rs == 72) || (service_rc == 8 && service_rs == 770) || (service_rc == 12 && service_rs == 769)) { ZCRYPT_DBF(DBF_DEBUG, "device=%02x.%04x rc/rs=%d/%d => rc=EINVAL\n", AP_QID_CARD(zq->queue->qid), AP_QID_QUEUE(zq->queue->qid), (int) service_rc, (int) service_rs); return -EINVAL; } if (service_rc == 8 && service_rs == 783) { zq->zcard->min_mod_size = PCIXCC_MIN_MOD_SIZE_OLD; ZCRYPT_DBF(DBF_DEBUG, "device=%02x.%04x rc/rs=%d/%d => rc=EAGAIN\n", AP_QID_CARD(zq->queue->qid), AP_QID_QUEUE(zq->queue->qid), (int) service_rc, (int) service_rs); return -EAGAIN; } zq->online = 0; pr_err("Cryptographic device %02x.%04x failed and was set offline\n", AP_QID_CARD(zq->queue->qid), AP_QID_QUEUE(zq->queue->qid)); ZCRYPT_DBF(DBF_ERR, "device=%02x.%04x rc/rs=%d/%d => online=0 rc=EAGAIN\n", AP_QID_CARD(zq->queue->qid), AP_QID_QUEUE(zq->queue->qid), (int) service_rc, (int) service_rs); return -EAGAIN; /* repeat the request on a different device. */ } data = msg->text; reply_len = msg->length - 2; if (reply_len > outputdatalength) return -EINVAL; /* * For all encipher requests, the length of the ciphertext (reply_len) * will always equal the modulus length. For MEX decipher requests * the output needs to get padded. Minimum pad size is 10. * * Currently, the cases where padding will be added is for: * - PCIXCC_MCL2 using a CRT form token (since PKD didn't support * ZERO-PAD and CRT is only supported for PKD requests) * - PCICC, always */ pad_len = outputdatalength - reply_len; if (pad_len > 0) { if (pad_len < 10) return -EINVAL; /* 'restore' padding left in the PCICC/PCIXCC card. */ if (copy_to_user(outputdata, static_pad, pad_len - 1)) return -EFAULT; if (put_user(0, outputdata + pad_len - 1)) return -EFAULT; } /* Copy the crypto response to user space. */ if (copy_to_user(outputdata + pad_len, data, reply_len)) return -EFAULT; return 0; }

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Holger Dengler56160.52%120.00%
Ingo Tuchscherer25627.62%360.00%
Harald Freudenberger11011.87%120.00%
Total927100.00%5100.00%

/** * Copy results from a type 86 XCRB reply message back to user space. * * @zq: crypto device pointer * @reply: reply AP message. * @xcRB: pointer to XCRB * * Returns 0 on success or -EINVAL, -EFAULT, -EAGAIN in case of an error. */
static int convert_type86_xcrb(struct zcrypt_queue *zq, struct ap_message *reply, struct ica_xcRB *xcRB) { struct type86_fmt2_msg *msg = reply->message; char *data = reply->message; /* Copy CPRB to user */ if (copy_to_user(xcRB->reply_control_blk_addr, data + msg->fmt2.offset1, msg->fmt2.count1)) return -EFAULT; xcRB->reply_control_blk_length = msg->fmt2.count1; /* Copy data buffer to user */ if (msg->fmt2.count2) if (copy_to_user(xcRB->reply_data_addr, data + msg->fmt2.offset2, msg->fmt2.count2)) return -EFAULT; xcRB->reply_data_length = msg->fmt2.count2; return 0; }

Contributors

PersonTokensPropCommitsCommitProp
Ingo Tuchscherer10886.40%266.67%
Holger Dengler1713.60%133.33%
Total125100.00%3100.00%

/** * Copy results from a type 86 EP11 XCRB reply message back to user space. * * @zq: crypto device pointer * @reply: reply AP message. * @xcRB: pointer to EP11 user request block * * Returns 0 on success or -EINVAL, -EFAULT, -EAGAIN in case of an error. */
static int convert_type86_ep11_xcrb(struct zcrypt_queue *zq, struct ap_message *reply, struct ep11_urb *xcRB) { struct type86_fmt2_msg *msg = reply->message; char *data = reply->message; if (xcRB->resp_len < msg->fmt2.count1) return -EINVAL; /* Copy response CPRB to user */ if (copy_to_user((char __force __user *)xcRB->resp, data + msg->fmt2.offset1, msg->fmt2.count1)) return -EFAULT; xcRB->resp_len = msg->fmt2.count1; return 0; }

Contributors

PersonTokensPropCommitsCommitProp
Holger Dengler8281.19%125.00%
Ingo Tuchscherer1918.81%375.00%
Total101100.00%4100.00%


static int convert_type86_rng(struct zcrypt_queue *zq, struct ap_message *reply, char *buffer) { struct { struct type86_hdr hdr; struct type86_fmt2_ext fmt2; struct CPRBX cprbx; } __packed * msg = reply->message; char *data = reply->message; if (msg->cprbx.ccp_rtcode != 0 || msg->cprbx.ccp_rscode != 0) return -EINVAL; memcpy(buffer, data + msg->fmt2.offset2, msg->fmt2.count2); return msg->fmt2.count2; }

Contributors

PersonTokensPropCommitsCommitProp
Holger Dengler9797.98%150.00%
Ingo Tuchscherer22.02%150.00%
Total99100.00%2100.00%


static int convert_response_ica(struct zcrypt_queue *zq, struct ap_message *reply, char __user *outputdata, unsigned int outputdatalength) { struct type86x_reply *msg = reply->message; switch (msg->hdr.type) { case TYPE82_RSP_CODE: case TYPE88_RSP_CODE: return convert_error(zq, reply); case TYPE86_RSP_CODE: if (msg->cprbx.ccp_rtcode && (msg->cprbx.ccp_rscode == 0x14f) && (outputdatalength > 256)) { if (zq->zcard->max_exp_bit_length <= 17) { zq->zcard->max_exp_bit_length = 17; return -EAGAIN; } else return -EINVAL; } if (msg->hdr.reply_code) return convert_error(zq, reply); if (msg->cprbx.cprb_ver_id == 0x02) return convert_type86_ica(zq, reply, outputdata, outputdatalength); /* Fall through, no break, incorrect cprb version is an unknown * response */ default: /* Unknown response type, this should NEVER EVER happen */ zq->online = 0; pr_err("Cryptographic device %02x.%04x failed and was set offline\n", AP_QID_CARD(zq->queue->qid), AP_QID_QUEUE(zq->queue->qid)); ZCRYPT_DBF(DBF_ERR, "device=%02x.%04x rtype=0x%02x => online=0 rc=EAGAIN\n", AP_QID_CARD(zq->queue->qid), AP_QID_QUEUE(zq->queue->qid), (int) msg->hdr.type); return -EAGAIN; /* repeat the request on a different device. */ } }

Contributors

PersonTokensPropCommitsCommitProp
Holger Dengler15267.56%120.00%
Ingo Tuchscherer6026.67%360.00%
Harald Freudenberger135.78%120.00%
Total225100.00%5100.00%


static int convert_response_xcrb(struct zcrypt_queue *zq, struct ap_message *reply, struct ica_xcRB *xcRB) { struct type86x_reply *msg = reply->message; switch (msg->hdr.type) { case TYPE82_RSP_CODE: case TYPE88_RSP_CODE: xcRB->status = 0x0008044DL; /* HDD_InvalidParm */ return convert_error(zq, reply); case TYPE86_RSP_CODE: if (msg->hdr.reply_code) { memcpy(&(xcRB->status), msg->fmt2.apfs, sizeof(u32)); return convert_error(zq, reply); } if (msg->cprbx.cprb_ver_id == 0x02) return convert_type86_xcrb(zq, reply, xcRB); /* Fall through, no break, incorrect cprb version is an unknown * response */ default: /* Unknown response type, this should NEVER EVER happen */ xcRB->status = 0x0008044DL; /* HDD_InvalidParm */ zq->online = 0; pr_err("Cryptographic device %02x.%04x failed and was set offline\n", AP_QID_CARD(zq->queue->qid), AP_QID_QUEUE(zq->queue->qid)); ZCRYPT_DBF(DBF_ERR, "device=%02x.%04x rtype=0x%02x => online=0 rc=EAGAIN\n", AP_QID_CARD(zq->queue->qid), AP_QID_QUEUE(zq->queue->qid), (int) msg->hdr.type); return -EAGAIN; /* repeat the request on a different device. */ } }

Contributors

PersonTokensPropCommitsCommitProp
Holger Dengler11255.72%120.00%
Ingo Tuchscherer7637.81%360.00%
Harald Freudenberger136.47%120.00%
Total201100.00%5100.00%


static int convert_response_ep11_xcrb(struct zcrypt_queue *zq, struct ap_message *reply, struct ep11_urb *xcRB) { struct type86_ep11_reply *msg = reply->message; switch (msg->hdr.type) { case TYPE82_RSP_CODE: case TYPE87_RSP_CODE: return convert_error(zq, reply); case TYPE86_RSP_CODE: if (msg->hdr.reply_code) return convert_error(zq, reply); if (msg->cprbx.cprb_ver_id == 0x04) return convert_type86_ep11_xcrb(zq, reply, xcRB); /* Fall through, no break, incorrect cprb version is an unknown resp.*/ default: /* Unknown response type, this should NEVER EVER happen */ zq->online = 0; pr_err("Cryptographic device %02x.%04x failed and was set offline\n", AP_QID_CARD(zq->queue->qid), AP_QID_QUEUE(zq->queue->qid)); ZCRYPT_DBF(DBF_ERR, "device=%02x.%04x rtype=0x%02x => online=0 rc=EAGAIN\n", AP_QID_CARD(zq->queue->qid), AP_QID_QUEUE(zq->queue->qid), (int) msg->hdr.type); return -EAGAIN; /* repeat the request on a different device. */ } }

Contributors

PersonTokensPropCommitsCommitProp
Ingo Tuchscherer13783.54%360.00%
Holger Dengler148.54%120.00%
Harald Freudenberger137.93%120.00%
Total164100.00%5100.00%


static int convert_response_rng(struct zcrypt_queue *zq, struct ap_message *reply, char *data) { struct type86x_reply *msg = reply->message; switch (msg->hdr.type) { case TYPE82_RSP_CODE: case TYPE88_RSP_CODE: return -EINVAL; case TYPE86_RSP_CODE: if (msg->hdr.reply_code) return -EINVAL; if (msg->cprbx.cprb_ver_id == 0x02) return convert_type86_rng(zq, reply, data); /* Fall through, no break, incorrect cprb version is an unknown * response */ default: /* Unknown response type, this should NEVER EVER happen */ zq->online = 0; pr_err("Cryptographic device %02x.%04x failed and was set offline\n", AP_QID_CARD(zq->queue->qid), AP_QID_QUEUE(zq->queue->qid)); ZCRYPT_DBF(DBF_ERR, "device=%02x.%04x rtype=0x%02x => online=0 rc=EAGAIN\n", AP_QID_CARD(zq->queue->qid), AP_QID_QUEUE(zq->queue->qid), (int) msg->hdr.type); return -EAGAIN; /* repeat the request on a different device. */ } }

Contributors

PersonTokensPropCommitsCommitProp
Holger Dengler9460.65%120.00%
Ingo Tuchscherer5233.55%360.00%
Harald Freudenberger95.81%120.00%
Total155100.00%5100.00%

/** * This function is called from the AP bus code after a crypto request * "msg" has finished with the reply message "reply". * It is called from tasklet context. * @aq: pointer to the AP queue * @msg: pointer to the AP message * @reply: pointer to the AP reply message */
static void zcrypt_msgtype6_receive(struct ap_queue *aq, struct ap_message *msg, struct ap_message *reply) { static struct error_hdr error_reply = { .type = TYPE82_RSP_CODE, .reply_code = REP82_ERROR_MACHINE_FAILURE, }; struct response_type *resp_type = (struct response_type *) msg->private; struct type86x_reply *t86r; int length; /* Copy the reply message to the request message buffer. */ if (!reply) goto out; /* ap_msg->rc indicates the error */ t86r = reply->message; if (t86r->hdr.type == TYPE86_RSP_CODE && t86r->cprbx.cprb_ver_id == 0x02) { switch (resp_type->type) { case PCIXCC_RESPONSE_TYPE_ICA: length = sizeof(struct type86x_reply) + t86r->length - 2; length = min(PCIXCC_MAX_ICA_RESPONSE_SIZE, length); memcpy(msg->message, reply->message, length); break; case PCIXCC_RESPONSE_TYPE_XCRB: length = t86r->fmt2.offset2 + t86r->fmt2.count2; length = min(MSGTYPE06_MAX_MSG_SIZE, length); memcpy(msg->message, reply->message, length); break; default: memcpy(msg->message, &error_reply, sizeof(error_reply)); } } else memcpy(msg->message, reply->message, sizeof(error_reply)); out: complete(&(resp_type->work)); }

Contributors

PersonTokensPropCommitsCommitProp
Holger Dengler12755.46%125.00%
Ingo Tuchscherer10043.67%250.00%
Martin Schwidefsky20.87%125.00%
Total229100.00%4100.00%

/** * This function is called from the AP bus code after a crypto request * "msg" has finished with the reply message "reply". * It is called from tasklet context. * @aq: pointer to the AP queue * @msg: pointer to the AP message * @reply: pointer to the AP reply message */
static void zcrypt_msgtype6_receive_ep11(struct ap_queue *aq, struct ap_message *msg, struct ap_message *reply) { static struct error_hdr error_reply = { .type = TYPE82_RSP_CODE, .reply_code = REP82_ERROR_MACHINE_FAILURE, }; struct response_type *resp_type = (struct response_type *)msg->private; struct type86_ep11_reply *t86r; int length; /* Copy the reply message to the request message buffer. */ if (!reply) goto out; /* ap_msg->rc indicates the error */ t86r = reply->message; if (t86r->hdr.type == TYPE86_RSP_CODE && t86r->cprbx.cprb_ver_id == 0x04) { switch (resp_type->type) { case PCIXCC_RESPONSE_TYPE_EP11: length = t86r->fmt2.offset1 + t86r->fmt2.count1; length = min(MSGTYPE06_MAX_MSG_SIZE, length); memcpy(msg->message, reply->message, length); break; default: memcpy(msg->message, &error_reply, sizeof(error_reply)); } } else { memcpy(msg->message, reply->message, sizeof(error_reply)); } out: complete(&(resp_type->work)); }

Contributors

PersonTokensPropCommitsCommitProp
Ingo Tuchscherer10353.93%250.00%
Holger Dengler8645.03%125.00%
Martin Schwidefsky21.05%125.00%
Total191100.00%4100.00%

static atomic_t zcrypt_step = ATOMIC_INIT(0); /** * The request distributor calls this function if it picked the PCIXCC/CEX2C * device to handle a modexpo request. * @zq: pointer to zcrypt_queue structure that identifies the * PCIXCC/CEX2C device to the request distributor * @mex: pointer to the modexpo request buffer */
static long zcrypt_msgtype6_modexpo(struct zcrypt_queue *zq, struct ica_rsa_modexpo *mex) { struct ap_message ap_msg; struct response_type resp_type = { .type = PCIXCC_RESPONSE_TYPE_ICA, }; int rc; ap_init_message(&ap_msg); ap_msg.message = (void *) get_zeroed_page(GFP_KERNEL); if (!ap_msg.message) return -ENOMEM; ap_msg.receive = zcrypt_msgtype6_receive; ap_msg.psmid = (((unsigned long long) current->pid) << 32) + atomic_inc_return(&zcrypt_step); ap_msg.private = &resp_type; rc = ICAMEX_msg_to_type6MEX_msgX(zq, &ap_msg, mex); if (rc) goto out_free; init_completion(&resp_type.work); ap_queue_message(zq->queue, &ap_msg); rc = wait_for_completion_interruptible(&resp_type.work); if (rc == 0) { rc = ap_msg.rc; if (rc == 0) rc = convert_response_ica(zq, &ap_msg, mex->outputdata, mex->outputdatalength); } else /* Signal pending. */ ap_cancel_message(zq->queue, &ap_msg); out_free: free_page((unsigned long) ap_msg.message); return rc; }

Contributors

PersonTokensPropCommitsCommitProp
Holger Dengler19389.77%133.33%
Martin Schwidefsky146.51%133.33%
Ingo Tuchscherer83.72%133.33%
Total215100.00%3100.00%

/** * The request distributor calls this function if it picked the PCIXCC/CEX2C * device to handle a modexpo_crt request. * @zq: pointer to zcrypt_queue structure that identifies the * PCIXCC/CEX2C device to the request distributor * @crt: pointer to the modexpoc_crt request buffer */
static long zcrypt_msgtype6_modexpo_crt(struct zcrypt_queue *zq, struct ica_rsa_modexpo_crt *crt) { struct ap_message ap_msg; struct response_type resp_type = { .type = PCIXCC_RESPONSE_TYPE_ICA, }; int rc; ap_init_message(&ap_msg); ap_msg.message = (void *) get_zeroed_page(GFP_KERNEL); if (!ap_msg.message) return -ENOMEM; ap_msg.receive = zcrypt_msgtype6_receive; ap_msg.psmid = (((unsigned long long) current->pid) << 32) + atomic_inc_return(&zcrypt_step); ap_msg.private = &resp_type; rc = ICACRT_msg_to_type6CRT_msgX(zq, &ap_msg, crt); if (rc) goto out_free; init_completion(&resp_type.work); ap_queue_message(zq->queue, &ap_msg); rc = wait_for_completion_interruptible(&resp_type.work); if (rc == 0) { rc = ap_msg.rc; if (rc == 0) rc = convert_response_ica(zq, &ap_msg, crt->outputdata, crt->outputdatalength); } else { /* Signal pending. */ ap_cancel_message(zq->queue, &ap_msg); } out_free: free_page((unsigned long) ap_msg.message); return rc; }

Contributors

PersonTokensPropCommitsCommitProp
Holger Dengler19388.94%133.33%
Martin Schwidefsky146.45%133.33%
Ingo Tuchscherer104.61%133.33%
Total217100.00%3100.00%


unsigned int get_cprb_fc(struct ica_xcRB *xcRB, struct ap_message *ap_msg, unsigned int *func_code, unsigned short **dom) { struct response_type resp_type = { .type = PCIXCC_RESPONSE_TYPE_XCRB, }; int rc; ap_init_message(ap_msg); ap_msg->message = kmalloc(MSGTYPE06_MAX_MSG_SIZE, GFP_KERNEL); if (!ap_msg->message) return -ENOMEM; ap_msg->receive = zcrypt_msgtype6_receive; ap_msg->psmid = (((unsigned long long) current->pid) << 32) + atomic_inc_return(&zcrypt_step); ap_msg->private = kmalloc(sizeof(resp_type), GFP_KERNEL); if (!ap_msg->private) { kzfree(ap_msg->message); return -ENOMEM; } memcpy(ap_msg->private, &resp_type, sizeof(resp_type)); rc = XCRB_msg_to_type6CPRB_msgX(ap_msg, xcRB, func_code, dom); if (rc) { kzfree(ap_msg->message); kzfree(ap_msg->private); } return rc; }

Contributors

PersonTokensPropCommitsCommitProp
Holger Dengler10154.89%125.00%
Ingo Tuchscherer7540.76%250.00%
Martin Schwidefsky84.35%125.00%
Total184100.00%4100.00%

/** * The request distributor calls this function if it picked the PCIXCC/CEX2C * device to handle a send_cprb request. * @zq: pointer to zcrypt_queue structure that identifies the * PCIXCC/CEX2C device to the request distributor * @xcRB: pointer to the send_cprb request buffer */
static long zcrypt_msgtype6_send_cprb(struct zcrypt_queue *zq, struct ica_xcRB *xcRB, struct ap_message *ap_msg) { int rc; struct response_type *rtype = (struct response_type *)(ap_msg->private); init_completion(&rtype->work); ap_queue_message(zq->queue, ap_msg); rc = wait_for_completion_interruptible(&rtype->work); if (rc == 0) { rc = ap_msg->rc; if (rc == 0) rc = convert_response_xcrb(zq, ap_msg, xcRB); } else /* Signal pending. */ ap_cancel_message(zq->queue, ap_msg); kzfree(ap_msg->message); kzfree(ap_msg->private); return rc; }

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PersonTokensPropCommitsCommitProp
Ingo Tuchscherer10885.71%266.67%
Holger Dengler1814.29%133.33%
Total126100.00%3100.00%


unsigned int get_ep11cprb_fc(struct ep11_urb *xcrb, struct ap_message *ap_msg, unsigned int *func_code) { struct response_type resp_type = { .type = PCIXCC_RESPONSE_TYPE_EP11, }; int rc; ap_init_message(ap_msg); ap_msg->message = kmalloc(MSGTYPE06_MAX_MSG_SIZE, GFP_KERNEL); if (!ap_msg->message) return -ENOMEM; ap_msg->receive = zcrypt_msgtype6_receive_ep11; ap_msg->psmid = (((unsigned long long) current->pid) << 32) + atomic_inc_return(&zcrypt_step); ap_msg->private = kmalloc(sizeof(resp_type), GFP_KERNEL); if (!ap_msg->private) { kzfree(ap_msg->message); return -ENOMEM; } memcpy(ap_msg->private, &resp_type, sizeof(resp_type)); rc = xcrb_msg_to_type6_ep11cprb_msgx(ap_msg, xcrb, func_code); if (rc) { kzfree(ap_msg->message); kzfree(ap_msg->private); } return rc; }

Contributors

PersonTokensPropCommitsCommitProp
Ingo Tuchscherer176100.00%3100.00%
Total176100.00%3100.00%

/** * The request distributor calls this function if it picked the CEX4P * device to handle a send_ep11_cprb request. * @zq: pointer to zcrypt_queue structure that identifies the * CEX4P device to the request distributor * @xcRB: pointer to the ep11 user request block */
static long zcrypt_msgtype6_send_ep11_cprb(struct zcrypt_queue *zq, struct ep11_urb *xcrb, struct ap_message *ap_msg) { int rc; unsigned int lfmt; struct response_type *rtype = (struct response_type *)(ap_msg->private); struct { struct type6_hdr hdr; struct ep11_cprb cprbx; unsigned char pld_tag; /* fixed value 0x30 */ unsigned char pld_lenfmt; /* payload length format */ } __packed * msg = ap_msg->message; struct pld_hdr { unsigned char func_tag; /* fixed value 0x4 */ unsigned char func_len; /* fixed value 0x4 */ unsigned int func_val; /* function ID */ unsigned char dom_tag; /* fixed value 0x4 */ unsigned char dom_len; /* fixed value 0x4 */ unsigned int dom_val; /* domain id */ } __packed * payload_hdr = NULL; /** * The target domain field within the cprb body/payload block will be * replaced by the usage domain for non-management commands only. * Therefore we check the first bit of the 'flags' parameter for * management command indication. * 0 - non management command * 1 - management command */ if (!((msg->cprbx.flags & 0x80) == 0x80)) { msg->cprbx.target_id = (unsigned int) AP_QID_QUEUE(zq->queue->qid); if ((msg->pld_lenfmt & 0x80) == 0x80) { /*ext.len.fmt 2 or 3*/ switch (msg->pld_lenfmt & 0x03) { case 1: lfmt = 2; break; case 2: lfmt = 3; break; default: return -EINVAL; } } else { lfmt = 1; /* length format #1 */ } payload_hdr = (struct pld_hdr *)((&(msg->pld_lenfmt))+lfmt); payload_hdr->dom_val = (unsigned int) AP_QID_QUEUE(zq->queue->qid); } init_completion(&rtype->work); ap_queue_message(zq->queue, ap_msg); rc = wait_for_completion_interruptible(&rtype->work); if (rc == 0) { rc = ap_msg->rc; if (rc == 0) rc = convert_response_ep11_xcrb(zq, ap_msg, xcrb); } else /* Signal pending. */ ap_cancel_message(zq->queue, ap_msg); kzfree(ap_msg->message); kzfree(ap_msg->private); return rc; }

Contributors

PersonTokensPropCommitsCommitProp
Ingo Tuchscherer31696.05%375.00%
Martin Schwidefsky133.95%125.00%
Total329100.00%4100.00%


unsigned int get_rng_fc(struct ap_message *ap_msg, int *func_code, unsigned int *domain) { struct response_type resp_type = { .type = PCIXCC_RESPONSE_TYPE_XCRB, }; ap_init_message(ap_msg); ap_msg->message = kmalloc(MSGTYPE06_MAX_MSG_SIZE, GFP_KERNEL); if (!ap_msg->message) return -ENOMEM; ap_msg->receive = zcrypt_msgtype6_receive; ap_msg->psmid = (((unsigned long long) current->pid) << 32) + atomic_inc_return(&zcrypt_step); ap_msg->private = kmalloc(sizeof(resp_type), GFP_KERNEL); if (!ap_msg->private) { kzfree(ap_msg->message); return -ENOMEM; } memcpy(ap_msg->private, &resp_type, sizeof(resp_type)); rng_type6CPRB_msgX(ap_msg, ZCRYPT_RNG_BUFFER_SIZE, domain); *func_code = HWRNG; return 0; }

Contributors

PersonTokensPropCommitsCommitProp
Holger Dengler8655.48%133.33%
Ingo Tuchscherer6944.52%266.67%
Total155100.00%3100.00%

/** * The request distributor calls this function if it picked the PCIXCC/CEX2C * device to generate random data. * @zq: pointer to zcrypt_queue structure that identifies the * PCIXCC/CEX2C device to the request distributor * @buffer: pointer to a memory page to return random data */
static long zcrypt_msgtype6_rng(struct zcrypt_queue *zq, char *buffer, struct ap_message *ap_msg) { struct { struct type6_hdr hdr; struct CPRBX cprbx; char function_code[2]; short int rule_length; char rule[8]; short int verb_length; short int key_length; } __packed * msg = ap_msg->message; struct response_type *rtype = (struct response_type *)(ap_msg->private); int rc; msg->cprbx.domain = AP_QID_QUEUE(zq->queue->qid); init_completion(&rtype->work); ap_queue_message(zq->queue, ap_msg); rc = wait_for_completion_interruptible(&rtype->work); if (rc == 0) { rc = ap_msg->rc; if (rc == 0) rc = convert_response_rng(zq, ap_msg, buffer); } else /* Signal pending. */ ap_cancel_message(zq->queue, ap_msg); kzfree(ap_msg->message); kzfree(ap_msg->private); return rc; }

Contributors

PersonTokensPropCommitsCommitProp
Ingo Tuchscherer11562.84%250.00%
Holger Dengler5530.05%125.00%
Martin Schwidefsky137.10%125.00%
Total183100.00%4100.00%

/** * The crypto operations for a PCIXCC/CEX2C card. */ static struct zcrypt_ops zcrypt_msgtype6_norng_ops = { .owner = THIS_MODULE, .name = MSGTYPE06_NAME, .variant = MSGTYPE06_VARIANT_NORNG, .rsa_modexpo = zcrypt_msgtype6_modexpo, .rsa_modexpo_crt = zcrypt_msgtype6_modexpo_crt, .send_cprb = zcrypt_msgtype6_send_cprb, }; static struct zcrypt_ops zcrypt_msgtype6_ops = { .owner = THIS_MODULE, .name = MSGTYPE06_NAME, .variant = MSGTYPE06_VARIANT_DEFAULT, .rsa_modexpo = zcrypt_msgtype6_modexpo, .rsa_modexpo_crt = zcrypt_msgtype6_modexpo_crt, .send_cprb = zcrypt_msgtype6_send_cprb, .rng = zcrypt_msgtype6_rng, }; static struct zcrypt_ops zcrypt_msgtype6_ep11_ops = { .owner = THIS_MODULE, .name = MSGTYPE06_NAME, .variant = MSGTYPE06_VARIANT_EP11, .rsa_modexpo = NULL, .rsa_modexpo_crt = NULL, .send_ep11_cprb = zcrypt_msgtype6_send_ep11_cprb, };
void __init zcrypt_msgtype6_init(void) { zcrypt_msgtype_register(&zcrypt_msgtype6_norng_ops); zcrypt_msgtype_register(&zcrypt_msgtype6_ops); zcrypt_msgtype_register(&zcrypt_msgtype6_ep11_ops); }

Contributors

PersonTokensPropCommitsCommitProp
Holger Dengler1973.08%133.33%
Ingo Tuchscherer726.92%266.67%
Total26100.00%3100.00%


void __exit zcrypt_msgtype6_exit(void) { zcrypt_msgtype_unregister(&zcrypt_msgtype6_norng_ops); zcrypt_msgtype_unregister(&zcrypt_msgtype6_ops); zcrypt_msgtype_unregister(&zcrypt_msgtype6_ep11_ops); }

Contributors

PersonTokensPropCommitsCommitProp
Holger Dengler2076.92%150.00%
Ingo Tuchscherer623.08%150.00%
Total26100.00%2100.00%


Overall Contributors

PersonTokensPropCommitsCommitProp
Holger Dengler349853.50%19.09%
Ingo Tuchscherer280142.84%763.64%
Harald Freudenberger1582.42%19.09%
Martin Schwidefsky661.01%19.09%
Sascha Silbe150.23%19.09%
Total6538100.00%11100.00%
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