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ltq-deu: make deu hash lock global and remove md5_hmac_ exports

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All hash algorithms use the same base IFX_HASH_CON to access the hash unit.
Parallel threads should not be able to call different hash algorithms and
therefor a global lock is required.
Fixed linker warning, that md5_hmac_init, md5_hmac_update and
md5_hmac_final are static export symbols. The export symbols are not
required, because the functions are exposed using shash_alg structure.

Signed-off-by: Daniel Kestrel <kestrel1974@t-online.de>
This commit is contained in:
Daniel Kestrel 2021-06-05 21:37:53 +02:00 committed by Hauke Mehrtens
parent 536dc6f164
commit 87a19c9345
6 changed files with 23 additions and 48 deletions
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3
package/kernel/lantiq/ltq-deu/src/ifxmips_deu.c
View File

@ -69,6 +69,8 @@
#endif /* CONFIG_xxxx */
int disable_deudma = 1;
spinlock_t ltq_deu_hash_lock;
EXPORT_SYMBOL_GPL(ltq_deu_hash_lock);
void chip_version(void);
@ -84,6 +86,7 @@ static int ltq_deu_probe(struct platform_device *pdev)
START_DEU_POWER;
CRTCL_SECT_HASH_INIT;
#define IFX_DEU_DRV_VERSION "2.0.0"
printk(KERN_INFO "Infineon Technologies DEU driver version %s \n", IFX_DEU_DRV_VERSION);

4
package/kernel/lantiq/ltq-deu/src/ifxmips_deu.h
View File

@ -131,6 +131,10 @@ void __exit lqdeu_fini_async_des(void);
void __exit deu_fini (void);
int deu_dma_init (void);
extern spinlock_t ltq_deu_hash_lock;
#define CRTCL_SECT_HASH_INIT spin_lock_init(&ltq_deu_hash_lock)
#define CRTCL_SECT_HASH_START spin_lock_irqsave(&ltq_deu_hash_lock, flag)
#define CRTCL_SECT_HASH_END spin_unlock_irqrestore(&ltq_deu_hash_lock, flag)
#define DEU_WAKELIST_INIT(queue) \

15
package/kernel/lantiq/ltq-deu/src/ifxmips_md5.c
View File

@ -64,11 +64,6 @@
#define MD5_HASH_WORDS 4
#define HASH_START IFX_HASH_CON
static spinlock_t lock;
#define CRTCL_SECT_INIT spin_lock_init(&lock)
#define CRTCL_SECT_START spin_lock_irqsave(&lock, flag)
#define CRTCL_SECT_END spin_unlock_irqrestore(&lock, flag)
//#define CRYPTO_DEBUG
#ifdef CRYPTO_DEBUG
extern char debug_level;
@ -110,7 +105,7 @@ static void md5_transform(struct md5_ctx *mctx, u32 *hash, u32 const *in)
volatile struct deu_hash_t *hashs = (struct deu_hash_t *) HASH_START;
unsigned long flag;
CRTCL_SECT_START;
CRTCL_SECT_HASH_START;
if (mctx->started) {
hashs->D1R = endian_swap(*((u32 *) hash + 0));
@ -136,7 +131,7 @@ static void md5_transform(struct md5_ctx *mctx, u32 *hash, u32 const *in)
mctx->started = 1;
CRTCL_SECT_END;
CRTCL_SECT_HASH_END;
}
/*! \fn static inline void md5_transform_helper(struct md5_ctx *ctx)
@ -242,14 +237,14 @@ static int md5_final(struct shash_desc *desc, u8 *out)
md5_transform(mctx, mctx->hash, mctx->block);
CRTCL_SECT_START;
CRTCL_SECT_HASH_START;
*((u32 *) out + 0) = endian_swap (hashs->D1R);
*((u32 *) out + 1) = endian_swap (hashs->D2R);
*((u32 *) out + 2) = endian_swap (hashs->D3R);
*((u32 *) out + 3) = endian_swap (hashs->D4R);
CRTCL_SECT_END;
CRTCL_SECT_HASH_END;
// Wipe context
memset(mctx, 0, sizeof(*mctx));
@ -288,8 +283,6 @@ int ifxdeu_init_md5 (void)
if ((ret = crypto_register_shash(&ifxdeu_md5_alg)))
goto md5_err;
CRTCL_SECT_INIT;
printk (KERN_NOTICE "IFX DEU MD5 initialized%s.\n", disable_deudma ? "" : " (DMA)");
return ret;

19
package/kernel/lantiq/ltq-deu/src/ifxmips_md5_hmac.c
View File

@ -63,11 +63,6 @@
#define MD5_HMAC_DBN_TEMP_SIZE 1024 // size in dword, needed for dbn workaround
#define HASH_START IFX_HASH_CON
static spinlock_t lock;
#define CRTCL_SECT_INIT spin_lock_init(&lock)
#define CRTCL_SECT_START spin_lock_irqsave(&lock, flag)
#define CRTCL_SECT_END spin_unlock_irqrestore(&lock, flag)
//#define CRYPTO_DEBUG
#ifdef CRYPTO_DEBUG
extern char debug_level;
@ -167,7 +162,7 @@ static int md5_hmac_setkey_hw(const u8 *key, unsigned int keylen)
//printk("\nsetkey keylen: %d\n key: ", keylen);
CRTCL_SECT_START;
CRTCL_SECT_HASH_START;
j = 0;
for (i = 0; i < keylen; i+=4)
{
@ -177,7 +172,7 @@ static int md5_hmac_setkey_hw(const u8 *key, unsigned int keylen)
asm("sync");
j++;
}
CRTCL_SECT_END;
CRTCL_SECT_HASH_END;
return 0;
}
@ -198,7 +193,6 @@ static int md5_hmac_init(struct shash_desc *desc)
return 0;
}
EXPORT_SYMBOL(md5_hmac_init);
/*! \fn void md5_hmac_update(struct crypto_tfm *tfm, const u8 *data, unsigned int len)
* \ingroup IFX_MD5_HMAC_FUNCTIONS
@ -237,7 +231,6 @@ static int md5_hmac_update(struct shash_desc *desc, const u8 *data, unsigned int
memcpy(mctx->block, data, len);
return 0;
}
EXPORT_SYMBOL(md5_hmac_update);
/*! \fn void md5_hmac_final(struct crypto_tfm *tfm, u8 *out)
* \ingroup IFX_MD5_HMAC_FUNCTIONS
@ -272,7 +265,7 @@ static int md5_hmac_final(struct shash_desc *desc, u8 *out)
md5_hmac_transform(desc, mctx->block);
CRTCL_SECT_START;
CRTCL_SECT_HASH_START;
//printk("\ndbn = %d\n", mctx->dbn);
hashs->DBN = mctx->dbn;
@ -322,14 +315,12 @@ static int md5_hmac_final(struct shash_desc *desc, u8 *out)
memset(&mctx->block[0], 0, sizeof(MD5_BLOCK_WORDS));
memset(&temp[0], 0, MD5_HMAC_DBN_TEMP_SIZE);
CRTCL_SECT_END;
CRTCL_SECT_HASH_END;
return 0;
}
EXPORT_SYMBOL(md5_hmac_final);
/*
* \brief MD5_HMAC function mappings
*/
@ -365,8 +356,6 @@ int ifxdeu_init_md5_hmac (void)
if ((ret = crypto_register_shash(&ifxdeu_md5_hmac_alg)))
goto md5_hmac_err;
CRTCL_SECT_INIT;
printk (KERN_NOTICE "IFX DEU MD5_HMAC initialized%s.\n", disable_deudma ? "" : " (DMA)");
return ret;

15
package/kernel/lantiq/ltq-deu/src/ifxmips_sha1.c
View File

@ -65,11 +65,6 @@
#define SHA1_HMAC_BLOCK_SIZE 64
#define HASH_START IFX_HASH_CON
static spinlock_t lock;
#define CRTCL_SECT_INIT spin_lock_init(&lock)
#define CRTCL_SECT_START spin_lock_irqsave(&lock, flag)
#define CRTCL_SECT_END spin_unlock_irqrestore(&lock, flag)
//#define CRYPTO_DEBUG
#ifdef CRYPTO_DEBUG
extern char debug_level;
@ -104,7 +99,7 @@ static void sha1_transform1 (struct sha1_ctx *sctx, u32 *state, const u32 *in)
volatile struct deu_hash_t *hashs = (struct deu_hash_t *) HASH_START;
unsigned long flag;
CRTCL_SECT_START;
CRTCL_SECT_HASH_START;
/* For context switching purposes, the previous hash output
* is loaded back into the output register
@ -137,7 +132,7 @@ static void sha1_transform1 (struct sha1_ctx *sctx, u32 *state, const u32 *in)
sctx->started = 1;
CRTCL_SECT_END;
CRTCL_SECT_HASH_END;
}
/*! \fn static void sha1_init1(struct crypto_tfm *tfm)
@ -229,7 +224,7 @@ static int sha1_final(struct shash_desc *desc, u8 *out)
/* Append length */
sha1_update (desc, bits, sizeof bits);
CRTCL_SECT_START;
CRTCL_SECT_HASH_START;
*((u32 *) out + 0) = hashs->D1R;
*((u32 *) out + 1) = hashs->D2R;
@ -237,7 +232,7 @@ static int sha1_final(struct shash_desc *desc, u8 *out)
*((u32 *) out + 3) = hashs->D4R;
*((u32 *) out + 4) = hashs->D5R;
CRTCL_SECT_END;
CRTCL_SECT_HASH_END;
// Wipe context
memset (sctx, 0, sizeof *sctx);
@ -278,8 +273,6 @@ int ifxdeu_init_sha1 (void)
if ((ret = crypto_register_shash(&ifxdeu_sha1_alg)))
goto sha1_err;
CRTCL_SECT_INIT;
printk (KERN_NOTICE "IFX DEU SHA1 initialized%s.\n", disable_deudma ? "" : " (DMA)");
return ret;

15
package/kernel/lantiq/ltq-deu/src/ifxmips_sha1_hmac.c
View File

@ -66,11 +66,6 @@
#define SHA1_HMAC_MAX_KEYLEN 64
static spinlock_t lock;
#define CRTCL_SECT_INIT spin_lock_init(&lock)
#define CRTCL_SECT_START spin_lock_irqsave(&lock, flag)
#define CRTCL_SECT_END spin_unlock_irqrestore(&lock, flag)
#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);
@ -158,7 +153,7 @@ static int sha1_hmac_setkey_hw(const u8 *key, unsigned int keylen)
j = 0;
CRTCL_SECT_START;
CRTCL_SECT_HASH_START;
for (i = 0; i < keylen; i+=4)
{
hash->KIDX = j;
@ -167,7 +162,7 @@ static int sha1_hmac_setkey_hw(const u8 *key, unsigned int keylen)
j++;
}
CRTCL_SECT_END;
CRTCL_SECT_HASH_END;
return 0;
}
@ -265,7 +260,7 @@ static int sha1_hmac_final(struct shash_desc *desc, u8 *out)
/* Append length */
sha1_hmac_update (desc, bits, sizeof bits);
CRTCL_SECT_START;
CRTCL_SECT_HASH_START;
hashs->DBN = sctx->dbn;
@ -312,7 +307,7 @@ static int sha1_hmac_final(struct shash_desc *desc, u8 *out)
sctx->count = 0;
//printk("debug ln: %d, fn: %s\n", __LINE__, __func__);
CRTCL_SECT_END;
CRTCL_SECT_HASH_END;
return 0;
@ -355,8 +350,6 @@ int ifxdeu_init_sha1_hmac (void)
if ((ret = crypto_register_shash(&ifxdeu_sha1_hmac_alg)))
goto sha1_err;
CRTCL_SECT_INIT;
printk (KERN_NOTICE "IFX DEU SHA1_HMAC initialized%s.\n", disable_deudma ? "" : " (DMA)");
return ret;