+++ /dev/null
-/******************************************************************************
-**
-** FILE NAME : ifxmips_async_des.c
-** PROJECT : IFX UEIP
-** MODULES : DEU Module
-**
-** DATE : October 11, 2010
-** AUTHOR : Mohammad Firdaus
-** DESCRIPTION : Data Encryption Unit Driver for DES Algorithm
-** COPYRIGHT : Copyright (c) 2010
-** Infineon Technologies AG
-** Am Campeon 1-12, 85579 Neubiberg, Germany
-**
-** 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 of the License, or
-** (at your option) any later version.
-**
-** HISTORY
-** $Date $Author $Comment
-** 08,Sept 2009 Mohammad Firdaus Initial UEIP release
-** 11, Oct 2010 Mohammad Firdaus Kernel Port incl. Async. Ablkcipher mode
-** 21,March 2011 Mohammad Firdaus Changes for Kernel 2.6.32 and IPSec integration
-*******************************************************************************/
-/*!
- \defgroup IFX_DEU IFX_DEU_DRIVERS
- \ingroup API
- \brief ifx DEU driver module
-*/
-
-/*!
- \file ifxmips_async_des.c
- \ingroup IFX_DEU
- \brief DES Encryption Driver main file
-*/
-
-/*!
- \defgroup IFX_DES_FUNCTIONS IFX_DES_FUNCTIONS
- \ingroup IFX_DEU
- \brief IFX DES driver Functions
-*/
-
-#include <linux/wait.h>
-#include <linux/crypto.h>
-#include <linux/kernel.h>
-#include <linux/interrupt.h>
-#include <linux/spinlock.h>
-#include <linux/list.h>
-#include <crypto/ctr.h>
-#include <crypto/aes.h>
-#include <crypto/algapi.h>
-#include <crypto/scatterwalk.h>
-
-#include <asm/ifx/ifx_regs.h>
-#include <asm/ifx/ifx_types.h>
-#include <asm/ifx/common_routines.h>
-#include <asm/ifx/irq.h>
-#include <asm/ifx/ifx_pmu.h>
-#include <asm/ifx/ifx_gpio.h>
-#include <asm/kmap_types.h>
-
-#include "ifxmips_deu.h"
-
-#if defined(CONFIG_DANUBE)
-#include "ifxmips_deu_danube.h"
-extern int ifx_danube_pre_1_4;
-#elif defined(CONFIG_AR9)
-#include "ifxmips_deu_ar9.h"
-#elif defined(CONFIG_VR9) || defined(CONFIG_AR10)
-#include "ifxmips_deu_vr9.h"
-#else
-#error "Unkown platform"
-#endif
-
-/* DMA specific header and variables */
-
-spinlock_t des_lock;
-#define CRTCL_SECT_INIT spin_lock_init(&des_lock)
-#define CRTCL_SECT_START spin_lock_irqsave(&des_lock, flag)
-#define CRTCL_SECT_END spin_unlock_irqrestore(&des_lock, flag)
-
-/* Preprocessor declerations */
-#ifdef CRYPTO_DEBUG
-extern char debug_level;
-#define DPRINTF(level, format, args...) if (level < debug_level) printk(KERN_INFO "[%s %s %d]: " format, __FILE__, __func__, __LINE__, ##args);
-#else
-#define DPRINTF(level, format, args...)
-#endif
-//#define DES_3DES_START IFX_DES_CON
-#define DES_KEY_SIZE 8
-#define DES_EXPKEY_WORDS 32
-#define DES_BLOCK_SIZE 8
-#define DES3_EDE_KEY_SIZE (3 * DES_KEY_SIZE)
-#define DES3_EDE_EXPKEY_WORDS (3 * DES_EXPKEY_WORDS)
-#define DES3_EDE_BLOCK_SIZE DES_BLOCK_SIZE
-
-/* Function Declaration to prevent warning messages */
-void des_chip_init (void);
-u32 endian_swap(u32 input);
-u32 input_swap(u32 input);
-int aes_memory_allocate(int value);
-int des_memory_allocate(int value);
-void memory_release(u32 *buffer);
-u32* memory_alignment(const u8 *arg, u32 *buff_alloc, int in_out, int nbytes);
-void aes_dma_memory_copy(u32 *outcopy, u32 *out_dma, u8 *out_arg, int nbytes);
-void des_dma_memory_copy(u32 *outcopy, u32 *out_dma, u8 *out_arg, int nbytes);
-
-static int lq_deu_des_core (void *ctx_arg, u8 *out_arg, const u8 *in_arg,
- u8 *iv_arg, u32 nbytes, int encdec, int mode);
-
-struct des_ctx {
- int controlr_M;
- int key_length;
- u8 iv[DES_BLOCK_SIZE];
- u32 expkey[DES3_EDE_EXPKEY_WORDS];
-};
-
-
-static int disable_multiblock = 0;
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,4,0)
-module_param(disable_multiblock, int, 0);
-#else
-MODULE_PARM_DESC(disable_multiblock, "Disable encryption of whole multiblock buffers");
-#endif
-
-static int disable_deudma = 1;
-
-struct des_container {
- u8 *iv;
- u8 *dst_buf;
- u8 *src_buf;
- int mode;
- int encdec;
- int complete;
- int flag;
-
- u32 bytes_processed;
- u32 nbytes;
-
- struct ablkcipher_request arequest;
-};
-
-des_priv_t *des_queue;
-extern deu_drv_priv_t deu_dma_priv;
-
-void hexdump1(unsigned char *buf, unsigned int len)
-{
- print_hex_dump(KERN_CONT, "", DUMP_PREFIX_OFFSET,
- 16, 1,
- buf, len, false);
-}
-
-
-/*! \fn int lq_des_setkey(struct crypto_ablkcipher *tfm, const u8 *key, unsigned int keylen)
- * \ingroup IFX_DES_FUNCTIONS
- * \brief sets DES key
- * \param tfm linux crypto algo transform
- * \param key input key
- * \param keylen key length
-*/
-static int lq_des_setkey(struct crypto_ablkcipher *tfm, const u8 *key,
- unsigned int keylen)
-{
- struct des_ctx *dctx = crypto_ablkcipher_ctx(tfm);
-
- //printk("setkey in %s\n", __FILE__);
-
- dctx->controlr_M = 0; // des
- dctx->key_length = keylen;
-
- memcpy ((u8 *) (dctx->expkey), key, keylen);
-
- return 0;
-}
-
-/*! \fn int lq_des3_ede_setkey(struct crypto_ablkcipher *tfm, const u8 *key, unsigned int keylen)
- * \ingroup IFX_DES_FUNCTIONS
- * \brief sets DES key
- * \param tfm linux crypto algo transform
- * \param key input key
- * \param keylen key length
-*/
-
-static int lq_des3_ede_setkey(struct crypto_ablkcipher *tfm, const u8 *in_key,
- unsigned int keylen)
-{
- struct des_ctx *dctx = crypto_ablkcipher_ctx(tfm);
-
- //printk("setkey in %s\n", __FILE__);
-
- dctx->controlr_M = keylen/8 + 1; // des
- dctx->key_length = keylen;
-
- memcpy ((u8 *) (dctx->expkey), in_key, keylen);
-
- return 0;
-}
-
-/*! \fn void ifx_deu_des_core(void *ctx_arg, u8 *out_arg, const u8 *in_arg, u8 *iv_arg, u32 nbytes, int encdec, int mode)
- * \ingroup IFX_DES_FUNCTIONS
- * \brief main interface to DES hardware
- * \param ctx_arg crypto algo context
- * \param out_arg output bytestream
- * \param in_arg input bytestream
- * \param iv_arg initialization vector
- * \param nbytes length of bytestream
- * \param encdec 1 for encrypt; 0 for decrypt
- * \param mode operation mode such as ebc, cbc
-*/
-
-static int lq_deu_des_core (void *ctx_arg, u8 *out_arg, const u8 *in_arg,
- u8 *iv_arg, u32 nbytes, int encdec, int mode)
-{
- volatile struct des_t *des = (struct des_t *) DES_3DES_START;
- struct des_ctx *dctx = ctx_arg;
- u32 *key = dctx->expkey;
- unsigned long flag;
-
- int i = 0;
- int nblocks = 0;
-
- CRTCL_SECT_START;
-
- des->controlr.M = dctx->controlr_M;
- if (dctx->controlr_M == 0) // des
- {
- des->K1HR = DEU_ENDIAN_SWAP(*((u32 *) key + 0));
- des->K1LR = DEU_ENDIAN_SWAP(*((u32 *) key + 1));
-
- }
- else {
- /* Hardware Section */
- switch (dctx->key_length) {
- case 24:
- des->K3HR = DEU_ENDIAN_SWAP(*((u32 *) key + 4));
- des->K3LR = DEU_ENDIAN_SWAP(*((u32 *) key + 5));
- /* no break; */
-
- case 16:
- des->K2HR = DEU_ENDIAN_SWAP(*((u32 *) key + 2));
- des->K2LR = DEU_ENDIAN_SWAP(*((u32 *) key + 3));
-
- /* no break; */
- case 8:
- des->K1HR = DEU_ENDIAN_SWAP(*((u32 *) key + 0));
- des->K1LR = DEU_ENDIAN_SWAP(*((u32 *) key + 1));
- break;
-
- default:
- CRTCL_SECT_END;
- return -EINVAL;
- }
- }
-
- des->controlr.E_D = !encdec; //encryption
- des->controlr.O = mode; //0 ECB 1 CBC 2 OFB 3 CFB 4 CTR hexdump(prin,sizeof(*des));
-
- if (mode > 0) {
- des->IVHR = DEU_ENDIAN_SWAP(*(u32 *) iv_arg);
- des->IVLR = DEU_ENDIAN_SWAP(*((u32 *) iv_arg + 1));
- };
-
- /* memory alignment issue */
- dword_mem_aligned_in = (u32 *) DEU_DWORD_REORDERING(in_arg, des_buff_in, BUFFER_IN, nbytes);
-
- deu_priv->deu_rx_buf = (u32 *) out_arg;
- deu_priv->deu_rx_len = nbytes;
-
- dma->controlr.ALGO = 0; //DES
- des->controlr.DAU = 0;
- dma->controlr.BS = 0;
- dma->controlr.EN = 1;
-
- while (des->controlr.BUS) {
- };
-
- wlen = dma_device_write (dma_device, (u8 *) dword_mem_aligned_in, nbytes, NULL);
- if (wlen != nbytes) {
- dma->controlr.EN = 0;
- CRTCL_SECT_END;
- printk (KERN_ERR "[%s %s %d]: dma_device_write fail!\n", __FILE__, __func__, __LINE__);
- return -EINVAL;
- }
-
-
- /* Prepare Rx buf length used in dma psuedo interrupt */
- outcopy = (u32 *) DEU_DWORD_REORDERING(out_arg, des_buff_out, BUFFER_OUT, nbytes);
- deu_priv->outcopy = outcopy;
- deu_priv->event_src = DES_ASYNC_EVENT;
-
- if (mode > 0) {
- *(u32 *) iv_arg = DEU_ENDIAN_SWAP(des->IVHR);
- *((u32 *) iv_arg + 1) = DEU_ENDIAN_SWAP(des->IVLR);
- };
-
- CRTCL_SECT_END;
-
- return -EINPROGRESS;
-
-}
-
-static int count_sgs(struct scatterlist *sl, unsigned int total_bytes)
-{
- int i = 0;
-
- do {
- total_bytes -= sl[i].length;
- i++;
-
- } while (total_bytes > 0);
-
- return i;
-}
-
-/* \fn static inline struct des_container *des_container_cast (
- * struct scatterlist *dst)
- * \ingroup IFX_DES_FUNCTIONS
- * \brief Locate the structure des_container in memory.
- * \param *areq Pointer to memory location where ablkcipher_request is located
- * \return *des_cointainer The function pointer to des_container
-*/
-
-static inline struct des_container *des_container_cast(
- struct ablkcipher_request *areq)
-{
- return container_of(areq, struct des_container, arequest);
-}
-
-/* \fn static void lq_sg_complete(struct des_container *des_con)
- * \ingroup IFX_DES_FUNCTIONS
- * \brief Free the used up memory after encryt/decrypt.
-*/
-
-static void lq_sg_complete(struct des_container *des_con)
-{
- unsigned long queue_flag;
-
- spin_lock_irqsave(&des_queue->lock, queue_flag);
- kfree(des_con);
- spin_unlock_irqrestore(&des_queue->lock, queue_flag);
-}
-
-/* \fn void lq_sg_init(struct scatterlist *src,
- * struct scatterlist *dst)
- * \ingroup IFX_DES_FUNCTIONS
- * \brief Maps the scatterlists into a source/destination page.
- * \param *src Pointer to the source scatterlist
- * \param *dst Pointer to the destination scatterlist
-*/
-
-static void lq_sg_init(struct des_container *des_con, struct scatterlist *src,
- struct scatterlist *dst)
-{
- struct page *dst_page, *src_page;
-
- src_page = sg_virt(src);
- des_con->src_buf = (char *) src_page;
-
- dst_page = sg_virt(dst);
- des_con->dst_buf = (char *) dst_page;
-}
-
-/* \fn static int process_next_packet(struct des_container *des_con, struct ablkcipher_request *areq,
- * int state)
- * \ingroup IFX_DES_FUNCTIONS
- * \brief Process the next packet after dequeuing the packet from crypto queue
- * \param *des_con Pointer to DES container structure
- * \param *areq Pointer to ablkcipher_request container
- * \param state State of the packet (scattered packet or new packet to be processed)
- * \return -EINVAL: DEU failure, -EINPROGRESS: DEU encrypt/decrypt in progress, 1: no scatterlist left
-*/
-
-static int process_next_packet(struct des_container *des_con, struct ablkcipher_request *areq,
- int state)
-{
- u8 *iv;
- int mode, encdec, err = -EINVAL;
- u32 remain, inc, chunk_size, nbytes;
- struct scatterlist *src = NULL;
- struct scatterlist *dst = NULL;
- struct crypto_ablkcipher *cipher;
- struct des_ctx *ctx;
- unsigned long queue_flag;
-
- spin_lock_irqsave(&des_queue->lock, queue_flag);
-
- mode = des_con->mode;
- encdec = des_con->encdec;
- iv = des_con->iv;
-
- if (state & PROCESS_SCATTER) {
- src = scatterwalk_sg_next(areq->src);
- dst = scatterwalk_sg_next(areq->dst);
-
- if (!src || !dst) {
- spin_unlock_irqrestore(&des_queue->lock, queue_flag);
- return 1;
- }
- }
- else if (state & PROCESS_NEW_PACKET) {
- src = areq->src;
- dst = areq->dst;
- }
-
- remain = des_con->bytes_processed;
- chunk_size = src->length;
-
- //printk("debug ln: %d, func: %s, reqsize: %d, scattersize: %d\n",
-// __LINE__, __func__, areq->nbytes, chunk_size);
-
- if (remain > DEU_MAX_PACKET_SIZE)
- inc = DEU_MAX_PACKET_SIZE;
- else if(remain > chunk_size)
- inc = chunk_size;
- else
- inc = remain;
-
- remain -= inc;
- des_con->nbytes = inc;
-
- if (state & PROCESS_SCATTER) {
- des_con->src_buf += des_con->nbytes;
- des_con->dst_buf += des_con->nbytes;
- }
-
- lq_sg_init(des_con, src, dst);
-
- nbytes = des_con->nbytes;
-
- cipher = crypto_ablkcipher_reqtfm(areq);
- ctx = crypto_ablkcipher_ctx(cipher);
-
- if (des_queue->hw_status == DES_IDLE) {
- des_queue->hw_status = DES_STARTED;
- }
-
- des_con->bytes_processed -= des_con->nbytes;
- err = ablkcipher_enqueue_request(&des_queue->list, &des_con->arequest);
- if (err == -EBUSY) {
- printk("Failed to enqueue request, ln: %d, err: %d\n",
- __LINE__, err);
- spin_unlock_irqrestore(&des_queue->lock, queue_flag);
- return -EINVAL;
- }
-
- spin_unlock_irqrestore(&des_queue->lock, queue_flag);
- err = lq_deu_des_core(ctx, des_con->dst_buf, des_con->src_buf, iv, nbytes, encdec, mode);
-
- return err;
-}
-
-/* \fn static void process_queue(unsigned long data)
- * \ingroup IFX_DES_FUNCTIONS
- * \brief Process next packet in queue
- * \param data not used
- * \return
-*/
-
-static void process_queue(unsigned long data)
-{
- DEU_WAKEUP_EVENT(deu_dma_priv.deu_thread_wait, DES_ASYNC_EVENT,
- deu_dma_priv.des_event_flags);
-
-}
-
-/* \fn static int des_crypto_thread (void *data)
- * \ingroup IFX_DES_FUNCTIONS
- * \brief DES thread that handles crypto requests from upper layer & DMA
- * \param *data Not used
- * \return -EINVAL: DEU failure, -EBUSY: DEU HW busy, 0: exit thread
-*/
-
-static int des_crypto_thread(void *data)
-{
- struct des_container *des_con = NULL;
- struct ablkcipher_request *areq = NULL;
- int err;
- unsigned long queue_flag;
-
- daemonize("lq_des_thread");
-
- while (1)
- {
- DEU_WAIT_EVENT(deu_dma_priv.deu_thread_wait, DES_ASYNC_EVENT,
- deu_dma_priv.des_event_flags);
- spin_lock_irqsave(&des_queue->lock, queue_flag);
-
- /* wait to prevent starting a crypto session before
- * exiting the dma interrupt thread.
- */
-
- if (des_queue->hw_status == DES_STARTED) {
- areq = ablkcipher_dequeue_request(&des_queue->list);
- des_con = des_container_cast(areq);
- des_queue->hw_status = DES_BUSY;
- }
- else if (des_queue->hw_status == DES_IDLE) {
- areq = ablkcipher_dequeue_request(&des_queue->list);
- des_con = des_container_cast(areq);
- des_queue->hw_status = DES_STARTED;
- }
- else if (des_queue->hw_status == DES_BUSY) {
- areq = ablkcipher_dequeue_request(&des_queue->list);
- des_con = des_container_cast(areq);
- }
- else if (des_queue->hw_status == DES_COMPLETED) {
- areq->base.complete(&areq->base, 0);
- lq_sg_complete(des_con);
- des_queue->hw_status = DES_IDLE;
- spin_unlock_irqrestore(&des_queue->lock, queue_flag);
- return 0;
- }
- spin_unlock_irqrestore(&des_queue->lock, queue_flag);
-
- if ((des_con->bytes_processed == 0)) {
- goto des_done;
- }
-
- if (!des_con) {
- goto des_done;
- }
-
- if (des_con->flag & PROCESS_NEW_PACKET) {
- des_con->flag = PROCESS_SCATTER;
- err = process_next_packet(des_con, areq, PROCESS_NEW_PACKET);
- }
- else
- err = process_next_packet(des_con, areq, PROCESS_SCATTER);
-
- if (err == -EINVAL) {
- areq->base.complete(&areq->base, err);
- lq_sg_complete(des_con);
- printk("src/dst returned -EINVAL in func: %s\n", __func__);
- }
- else if (err > 0) {
- printk("src/dst returned zero in func: %s\n", __func__);
- goto des_done;
- }
-
- continue;
-
-des_done:
- //printk("debug line - %d, func: %s, qlen: %d\n", __LINE__, __func__, des_queue->list.qlen);
- areq->base.complete(&areq->base, 0);
- lq_sg_complete(des_con);
-
- spin_lock_irqsave(&des_queue->lock, queue_flag);
- if (des_queue->list.qlen > 0) {
- spin_unlock_irqrestore(&des_queue->lock, queue_flag);
- tasklet_schedule(&des_queue->des_task);
- }
- else {
- des_queue->hw_status = DES_IDLE;
- spin_unlock_irqrestore(&des_queue->lock, queue_flag);
- }
- } // while(1)
-
- return 0;
-
-}
-
-/* \fn static int lq_des_queue_mgr(struct des_ctx *ctx, struct ablkcipher_request *areq,
- u8 *iv, int encdec, int mode)
- * \ingroup IFX_DES_FUNCTIONS
- * \brief starts the process of queuing DEU requests
- * \param *ctx crypto algo contax
- * \param *areq Pointer to the balkcipher requests
- * \param *iv Pointer to intput vector location
- * \param dir Encrypt/Decrypt
- * \mode The mode DES algo is running
- * \return 0 if success
-*/
-
-static int lq_queue_mgr(struct des_ctx *ctx, struct ablkcipher_request *areq,
- u8 *iv, int encdec, int mode)
-{
- int err = -EINVAL;
- unsigned long queue_flag;
- struct scatterlist *src = areq->src;
- struct scatterlist *dst = areq->dst;
- struct des_container *des_con = NULL;
- u32 remain, inc, nbytes = areq->nbytes;
- u32 chunk_bytes = src->length;
-
- des_con = (struct des_container *)kmalloc(sizeof(struct des_container),
- GFP_KERNEL);
-
- if (!(des_con)) {
- printk("Cannot allocate memory for AES container, fn %s, ln %d\n",
- __func__, __LINE__);
- return -ENOMEM;
- }
-
- /* DES encrypt/decrypt mode */
- if (mode == 5) {
- nbytes = DES_BLOCK_SIZE;
- chunk_bytes = DES_BLOCK_SIZE;
- mode = 0;
- }
-
- des_con->bytes_processed = nbytes;
- des_con->arequest = (*areq);
- remain = nbytes;
-
- //printk("debug - Line: %d, func: %s, reqsize: %d, scattersize: %d\n",
- // __LINE__, __func__, nbytes, chunk_bytes);
-
- if (remain > DEU_MAX_PACKET_SIZE)
- inc = DEU_MAX_PACKET_SIZE;
- else if(remain > chunk_bytes)
- inc = chunk_bytes;
- else
- inc = remain;
-
- remain -= inc;
- lq_sg_init(des_con, src, dst);
-
- if (remain <= 0 ) {
- des_con->complete = 1;
- }
- else
- des_con->complete = 0;
-
- des_con->nbytes = inc;
- des_con->iv = iv;
- des_con->mode = mode;
- des_con->encdec = encdec;
-
- spin_lock_irqsave(&des_queue->lock, queue_flag);
-
- if (des_queue->hw_status == DES_STARTED || des_queue->hw_status == DES_BUSY ||
- des_queue->list.qlen > 0) {
-
- des_con->flag = PROCESS_NEW_PACKET;
- err = ablkcipher_enqueue_request(&des_queue->list, &des_con->arequest);
- if (err == -EBUSY) {
- spin_unlock_irqrestore(&des_queue->lock, queue_flag);
- printk("Fail to enqueue ablkcipher request ln: %d, err: %d\n",
- __LINE__, err);
- return err;
- }
-
- spin_unlock_irqrestore(&des_queue->lock, queue_flag);
- return -EINPROGRESS;
-
- }
- else if (des_queue->hw_status == DES_IDLE) {
- des_queue->hw_status = DES_STARTED;
- }
-
- des_con->flag = PROCESS_SCATTER;
- des_con->bytes_processed -= des_con->nbytes;
-
- err = ablkcipher_enqueue_request(&des_queue->list, &des_con->arequest);
- if (err == -EBUSY) {
- printk("Fail to enqueue ablkcipher request ln: %d, err: %d\n",
- __LINE__, err);
-
- spin_unlock_irqrestore(&des_queue->lock, queue_flag);
- return err;
- }
-
- spin_unlock_irqrestore(&des_queue->lock, queue_flag);
- return lq_deu_des_core(ctx, des_con->dst_buf, des_con->src_buf, iv, inc, encdec, mode);
-
-}
-
-/* \fn static int lq_des_encrypt(struct ablkcipher_request *areq)
- * \ingroup IFX_DES_FUNCTIONS
- * \brief Decrypt function for DES algo
- * \param *areq Pointer to ablkcipher request in memory
- * \return 0 is success, -EINPROGRESS if encryting, EINVAL if failure
-*/
-
-static int lq_des_encrypt(struct ablkcipher_request *areq)
-{
- struct crypto_ablkcipher *cipher = crypto_ablkcipher_reqtfm(areq);
- struct des_ctx *ctx = crypto_ablkcipher_ctx(cipher);
-
- return lq_queue_mgr(ctx, areq, NULL, CRYPTO_DIR_ENCRYPT, 5);
-
-}
-
-/* \fn static int lq_des_decrypt(struct ablkcipher_request *areq)
- * \ingroup IFX_DES_FUNCTIONS
- * \brief Decrypt function for DES algo
- * \param *areq Pointer to ablkcipher request in memory
- * \return 0 is success, -EINPROGRESS if encryting, EINVAL if failure
-*/
-
-static int lq_des_decrypt(struct ablkcipher_request *areq)
-{
- struct crypto_ablkcipher *cipher = crypto_ablkcipher_reqtfm(areq);
- struct des_ctx *ctx = crypto_ablkcipher_ctx(cipher);
-
- return lq_queue_mgr(ctx, areq, NULL, CRYPTO_DIR_DECRYPT, 5);
-}
-
-/* \fn static int lq_ecb_des_encrypt(struct ablkcipher_request *areq)
- * \ingroup IFX_DES_FUNCTIONS
- * \brief Decrypt function for DES algo
- * \param *areq Pointer to ablkcipher request in memory
- * \return 0 is success, -EINPROGRESS if encryting, EINVAL if failure
-*/
-
-static int lq_ecb_des_encrypt(struct ablkcipher_request *areq)
-{
- struct crypto_ablkcipher *cipher = crypto_ablkcipher_reqtfm(areq);
- struct des_ctx *ctx = crypto_ablkcipher_ctx(cipher);
-
- return lq_queue_mgr(ctx, areq, areq->info, CRYPTO_DIR_ENCRYPT, 0);
-}
-
-/* \fn static int lq_ecb_des_decrypt(struct ablkcipher_request *areq)
- * \ingroup IFX_DES_FUNCTIONS
- * \brief Decrypt function for DES algo
- * \param *areq Pointer to ablkcipher request in memory
- * \return 0 is success, -EINPROGRESS if encryting, EINVAL if failure
-*/
-static int lq_ecb_des_decrypt(struct ablkcipher_request *areq)
-{
- struct crypto_ablkcipher *cipher = crypto_ablkcipher_reqtfm(areq);
- struct des_ctx *ctx = crypto_ablkcipher_ctx(cipher);
-
- return lq_queue_mgr(ctx, areq, areq->info, CRYPTO_DIR_DECRYPT, 0);
-
-}
-
-/* \fn static int lq_cbc_ecb_des_encrypt(struct ablkcipher_request *areq)
- * \ingroup IFX_DES_FUNCTIONS
- * \brief Decrypt function for DES algo
- * \param *areq Pointer to ablkcipher request in memory
- * \return 0 is success, -EINPROGRESS if encryting, EINVAL if failure
-*/
-
-static int lq_cbc_des_encrypt(struct ablkcipher_request *areq)
-{
- struct crypto_ablkcipher *cipher = crypto_ablkcipher_reqtfm(areq);
- struct des_ctx *ctx = crypto_ablkcipher_ctx(cipher);
-
- return lq_queue_mgr(ctx, areq, areq->info, CRYPTO_DIR_ENCRYPT, 1);
-}
-/* \fn static int lq_cbc_des_decrypt(struct ablkcipher_request *areq)
- * \ingroup IFX_DES_FUNCTIONS
- * \brief Decrypt function for DES algo
- * \param *areq Pointer to ablkcipher request in memory
- * \return 0 is success, -EINPROGRESS if encryting, EINVAL if failure
-*/
-
-static int lq_cbc_des_decrypt(struct ablkcipher_request *areq)
-{
- struct crypto_ablkcipher *cipher = crypto_ablkcipher_reqtfm(areq);
- struct des_ctx *ctx = crypto_ablkcipher_ctx(cipher);
-
- return lq_queue_mgr(ctx, areq, areq->info, CRYPTO_DIR_DECRYPT, 1);
-}
-
-struct lq_des_alg {
- struct crypto_alg alg;
-};
-
-/* DES Supported algo array */
-static struct lq_des_alg des_drivers_alg [] = {
- {
- .alg = {
- .cra_name = "des",
- .cra_driver_name = "lqdeu-des",
- .cra_flags = CRYPTO_ALG_TYPE_ABLKCIPHER | CRYPTO_ALG_ASYNC,
- .cra_blocksize = DES_BLOCK_SIZE,
- .cra_ctxsize = sizeof(struct des_ctx),
- .cra_type = &crypto_ablkcipher_type,
- .cra_priority = 300,
- .cra_module = THIS_MODULE,
- .cra_ablkcipher = {
- .setkey = lq_des_setkey,
- .encrypt = lq_des_encrypt,
- .decrypt = lq_des_decrypt,
- .geniv = "eseqiv",
- .min_keysize = DES_KEY_SIZE,
- .max_keysize = DES_KEY_SIZE,
- .ivsize = DES_BLOCK_SIZE,
- }
- }
-
- },{
- .alg = {
- .cra_name = "ecb(des)",
- .cra_driver_name = "lqdeu-ecb(des)",
- .cra_flags = CRYPTO_ALG_TYPE_ABLKCIPHER | CRYPTO_ALG_ASYNC,
- .cra_blocksize = DES_BLOCK_SIZE,
- .cra_ctxsize = sizeof(struct des_ctx),
- .cra_type = &crypto_ablkcipher_type,
- .cra_priority = 300,
- .cra_module = THIS_MODULE,
- .cra_ablkcipher = {
- .setkey = lq_des_setkey,
- .encrypt = lq_ecb_des_encrypt,
- .decrypt = lq_ecb_des_decrypt,
- .geniv = "eseqiv",
- .min_keysize = DES_KEY_SIZE,
- .max_keysize = DES_KEY_SIZE,
- .ivsize = DES_BLOCK_SIZE,
- }
- }
- },{
- .alg = {
- .cra_name = "cbc(des)",
- .cra_driver_name = "lqdeu-cbc(des)",
- .cra_flags = CRYPTO_ALG_TYPE_ABLKCIPHER | CRYPTO_ALG_ASYNC,
- .cra_blocksize = DES_BLOCK_SIZE,
- .cra_ctxsize = sizeof(struct des_ctx),
- .cra_type = &crypto_ablkcipher_type,
- .cra_priority = 300,
- .cra_module = THIS_MODULE,
- .cra_ablkcipher = {
- .setkey = lq_des_setkey,
- .encrypt = lq_cbc_des_encrypt,
- .decrypt = lq_cbc_des_decrypt,
- .geniv = "eseqiv",
- .min_keysize = DES3_EDE_KEY_SIZE,
- .max_keysize = DES3_EDE_KEY_SIZE,
- .ivsize = DES3_EDE_BLOCK_SIZE,
- }
- }
- },{
- .alg = {
- .cra_name = "des3_ede",
- .cra_driver_name = "lqdeu-des3_ede",
- .cra_flags = CRYPTO_ALG_TYPE_ABLKCIPHER | CRYPTO_ALG_ASYNC,
- .cra_blocksize = DES_BLOCK_SIZE,
- .cra_ctxsize = sizeof(struct des_ctx),
- .cra_type = &crypto_ablkcipher_type,
- .cra_priority = 300,
- .cra_module = THIS_MODULE,
- .cra_ablkcipher = {
- .setkey = lq_des3_ede_setkey,
- .encrypt = lq_des_encrypt,
- .decrypt = lq_des_decrypt,
- .geniv = "eseqiv",
- .min_keysize = DES_KEY_SIZE,
- .max_keysize = DES_KEY_SIZE,
- .ivsize = DES_BLOCK_SIZE,
- }
- }
- },{
- .alg = {
- .cra_name = "ecb(des3_ede)",
- .cra_driver_name = "lqdeu-ecb(des3_ede)",
- .cra_flags = CRYPTO_ALG_TYPE_ABLKCIPHER | CRYPTO_ALG_ASYNC,
- .cra_blocksize = DES_BLOCK_SIZE,
- .cra_ctxsize = sizeof(struct des_ctx),
- .cra_type = &crypto_ablkcipher_type,
- .cra_priority = 300,
- .cra_module = THIS_MODULE,
- .cra_ablkcipher = {
- .setkey = lq_des3_ede_setkey,
- .encrypt = lq_ecb_des_encrypt,
- .decrypt = lq_ecb_des_decrypt,
- .geniv = "eseqiv",
- .min_keysize = DES3_EDE_KEY_SIZE,
- .max_keysize = DES3_EDE_KEY_SIZE,
- .ivsize = DES3_EDE_BLOCK_SIZE,
- }
- }
- },{
- .alg = {
- .cra_name = "cbc(des3_ede)",
- .cra_driver_name = "lqdeu-cbc(des3_ede)",
- .cra_flags = CRYPTO_ALG_TYPE_ABLKCIPHER | CRYPTO_ALG_ASYNC,
- .cra_blocksize = DES_BLOCK_SIZE,
- .cra_ctxsize = sizeof(struct des_ctx),
- .cra_type = &crypto_ablkcipher_type,
- .cra_priority = 300,
- .cra_module = THIS_MODULE,
- .cra_ablkcipher = {
- .setkey = lq_des3_ede_setkey,
- .encrypt = lq_cbc_des_encrypt,
- .decrypt = lq_cbc_des_decrypt,
- .geniv = "eseqiv",
- .min_keysize = DES3_EDE_KEY_SIZE,
- .max_keysize = DES3_EDE_KEY_SIZE,
- .ivsize = DES3_EDE_BLOCK_SIZE,
- }
- }
- }
-};
-
-/*! \fn int __init lqdeu_async_des_init (void)
- * \ingroup IFX_DES_FUNCTIONS
- * \brief initialize des driver
-*/
-int __init lqdeu_async_des_init (void)
-{
- int i, j, ret = -EINVAL;
-
-#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,20))
- if (!disable_multiblock) {
- ifxdeu_des_alg.cra_u.cipher.cia_max_nbytes = DES_BLOCK_SIZE; //(size_t)-1;
- ifxdeu_des_alg.cra_u.cipher.cia_req_align = 16;
- ifxdeu_des_alg.cra_u.cipher.cia_ecb = ifx_deu_des_ecb;
- ifxdeu_des_alg.cra_u.cipher.cia_cbc = ifx_deu_des_cbc;
- ifxdeu_des_alg.cra_u.cipher.cia_cfb = ifx_deu_des_cfb;
- ifxdeu_des_alg.cra_u.cipher.cia_ofb = ifx_deu_des_ofb;
- }
-#endif
- for (i = 0; i < ARRAY_SIZE(des_drivers_alg); i++) {
- ret = crypto_register_alg(&des_drivers_alg[i].alg);
- //printk("driver: %s\n", des_drivers_alg[i].alg.cra_name);
- if (ret)
- goto des_err;
- }
-
- des_chip_init();
- CRTCL_SECT_INIT;
-
-
- printk (KERN_NOTICE "IFX DEU DES initialized%s%s.\n", disable_multiblock ? "" : " (multiblock)", disable_deudma ? "" : " (DMA)");
- return ret;
-
-des_err:
- for (j = 0; j < i; j++)
- crypto_unregister_alg(&des_drivers_alg[i].alg);
-
- printk(KERN_ERR "Lantiq %s driver initialization failed!\n", (char *)&des_drivers_alg[i].alg.cra_driver_name);
- return ret;
-
-cbc_des3_ede_err:
- for (i = 0; i < ARRAY_SIZE(des_drivers_alg); i++) {
- if (!strcmp((char *)&des_drivers_alg[i].alg.cra_name, "cbc(des3_ede)"))
- crypto_unregister_alg(&des_drivers_alg[i].alg);
- }
-
- printk(KERN_ERR "Lantiq %s driver initialization failed!\n", (char *)&des_drivers_alg[i].alg.cra_driver_name);
- return ret;
-}
-
-/*! \fn void __exit lqdeu_fini_async_des (void)
- * \ingroup IFX_DES_FUNCTIONS
- * \brief unregister des driver
-*/
-void __exit lqdeu_fini_async_des (void)
-{
- int i;
-
- for (i = 0; i < ARRAY_SIZE(des_drivers_alg); i++)
- crypto_unregister_alg(&des_drivers_alg[i].alg);
-
- des_queue->hw_status = DES_COMPLETED;
- DEU_WAKEUP_EVENT(deu_dma_priv.deu_thread_wait, DES_ASYNC_EVENT,
- deu_dma_priv.des_event_flags);
-
- kfree(des_queue);
-}
-
projects / openwrt.git / blobdiff