crypto: caam - refactor skcipher/aead/gcm/chachapoly {en,de}crypt functions
Create a common crypt function for each skcipher/aead/gcm/chachapoly algorithms and call it for encrypt/decrypt with the specific boolean - true for encrypt and false for decrypt. Signed-off-by: Iuliana Prodan <iuliana.prodan@nxp.com> Reviewed-by: Horia Geanta <horia.geanta@nxp.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
Iuliana Prodan
Herbert Xu
Родитель
e68303c6fe
Коммит
b7f17fe281
|
|
@ -941,8 +941,8 @@ static void skcipher_unmap(struct device *dev, struct skcipher_edesc *edesc,
|
|||
edesc->sec4_sg_dma, edesc->sec4_sg_bytes);
|
||||
}
|
||||
|
||||
static void aead_encrypt_done(struct device *jrdev, u32 *desc, u32 err,
|
||||
void *context)
|
||||
static void aead_crypt_done(struct device *jrdev, u32 *desc, u32 err,
|
||||
void *context)
|
||||
{
|
||||
struct aead_request *req = context;
|
||||
struct aead_edesc *edesc;
|
||||
|
|
@ -962,69 +962,8 @@ static void aead_encrypt_done(struct device *jrdev, u32 *desc, u32 err,
|
|||
aead_request_complete(req, ecode);
|
||||
}
|
||||
|
||||
static void aead_decrypt_done(struct device *jrdev, u32 *desc, u32 err,
|
||||
void *context)
|
||||
{
|
||||
struct aead_request *req = context;
|
||||
struct aead_edesc *edesc;
|
||||
int ecode = 0;
|
||||
|
||||
dev_dbg(jrdev, "%s %d: err 0x%x\n", __func__, __LINE__, err);
|
||||
|
||||
edesc = container_of(desc, struct aead_edesc, hw_desc[0]);
|
||||
|
||||
if (err)
|
||||
ecode = caam_jr_strstatus(jrdev, err);
|
||||
|
||||
aead_unmap(jrdev, edesc, req);
|
||||
|
||||
kfree(edesc);
|
||||
|
||||
aead_request_complete(req, ecode);
|
||||
}
|
||||
|
||||
static void skcipher_encrypt_done(struct device *jrdev, u32 *desc, u32 err,
|
||||
void *context)
|
||||
{
|
||||
struct skcipher_request *req = context;
|
||||
struct skcipher_edesc *edesc;
|
||||
struct crypto_skcipher *skcipher = crypto_skcipher_reqtfm(req);
|
||||
int ivsize = crypto_skcipher_ivsize(skcipher);
|
||||
int ecode = 0;
|
||||
|
||||
dev_dbg(jrdev, "%s %d: err 0x%x\n", __func__, __LINE__, err);
|
||||
|
||||
edesc = container_of(desc, struct skcipher_edesc, hw_desc[0]);
|
||||
|
||||
if (err)
|
||||
ecode = caam_jr_strstatus(jrdev, err);
|
||||
|
||||
skcipher_unmap(jrdev, edesc, req);
|
||||
|
||||
/*
|
||||
* The crypto API expects us to set the IV (req->iv) to the last
|
||||
* ciphertext block (CBC mode) or last counter (CTR mode).
|
||||
* This is used e.g. by the CTS mode.
|
||||
*/
|
||||
if (ivsize && !ecode) {
|
||||
memcpy(req->iv, (u8 *)edesc->sec4_sg + edesc->sec4_sg_bytes,
|
||||
ivsize);
|
||||
print_hex_dump_debug("dstiv @"__stringify(__LINE__)": ",
|
||||
DUMP_PREFIX_ADDRESS, 16, 4, req->iv,
|
||||
edesc->src_nents > 1 ? 100 : ivsize, 1);
|
||||
}
|
||||
|
||||
caam_dump_sg("dst @" __stringify(__LINE__)": ",
|
||||
DUMP_PREFIX_ADDRESS, 16, 4, req->dst,
|
||||
edesc->dst_nents > 1 ? 100 : req->cryptlen, 1);
|
||||
|
||||
kfree(edesc);
|
||||
|
||||
skcipher_request_complete(req, ecode);
|
||||
}
|
||||
|
||||
static void skcipher_decrypt_done(struct device *jrdev, u32 *desc, u32 err,
|
||||
void *context)
|
||||
static void skcipher_crypt_done(struct device *jrdev, u32 *desc, u32 err,
|
||||
void *context)
|
||||
{
|
||||
struct skcipher_request *req = context;
|
||||
struct skcipher_edesc *edesc;
|
||||
|
|
@ -1436,7 +1375,7 @@ static struct aead_edesc *aead_edesc_alloc(struct aead_request *req,
|
|||
return edesc;
|
||||
}
|
||||
|
||||
static int gcm_encrypt(struct aead_request *req)
|
||||
static inline int chachapoly_crypt(struct aead_request *req, bool encrypt)
|
||||
{
|
||||
struct aead_edesc *edesc;
|
||||
struct crypto_aead *aead = crypto_aead_reqtfm(req);
|
||||
|
|
@ -1444,22 +1383,21 @@ static int gcm_encrypt(struct aead_request *req)
|
|||
struct device *jrdev = ctx->jrdev;
|
||||
bool all_contig;
|
||||
u32 *desc;
|
||||
int ret = 0;
|
||||
int ret;
|
||||
|
||||
/* allocate extended descriptor */
|
||||
edesc = aead_edesc_alloc(req, GCM_DESC_JOB_IO_LEN, &all_contig, true);
|
||||
edesc = aead_edesc_alloc(req, CHACHAPOLY_DESC_JOB_IO_LEN, &all_contig,
|
||||
encrypt);
|
||||
if (IS_ERR(edesc))
|
||||
return PTR_ERR(edesc);
|
||||
|
||||
/* Create and submit job descriptor */
|
||||
init_gcm_job(req, edesc, all_contig, true);
|
||||
|
||||
print_hex_dump_debug("aead jobdesc@"__stringify(__LINE__)": ",
|
||||
DUMP_PREFIX_ADDRESS, 16, 4, edesc->hw_desc,
|
||||
desc_bytes(edesc->hw_desc), 1);
|
||||
|
||||
desc = edesc->hw_desc;
|
||||
ret = caam_jr_enqueue(jrdev, desc, aead_encrypt_done, req);
|
||||
|
||||
init_chachapoly_job(req, edesc, all_contig, encrypt);
|
||||
print_hex_dump_debug("chachapoly jobdesc@" __stringify(__LINE__)": ",
|
||||
DUMP_PREFIX_ADDRESS, 16, 4, desc, desc_bytes(desc),
|
||||
1);
|
||||
|
||||
ret = caam_jr_enqueue(jrdev, desc, aead_crypt_done, req);
|
||||
if (!ret) {
|
||||
ret = -EINPROGRESS;
|
||||
} else {
|
||||
|
|
@ -1471,6 +1409,16 @@ static int gcm_encrypt(struct aead_request *req)
|
|||
}
|
||||
|
||||
static int chachapoly_encrypt(struct aead_request *req)
|
||||
{
|
||||
return chachapoly_crypt(req, true);
|
||||
}
|
||||
|
||||
static int chachapoly_decrypt(struct aead_request *req)
|
||||
{
|
||||
return chachapoly_crypt(req, false);
|
||||
}
|
||||
|
||||
static inline int aead_crypt(struct aead_request *req, bool encrypt)
|
||||
{
|
||||
struct aead_edesc *edesc;
|
||||
struct crypto_aead *aead = crypto_aead_reqtfm(req);
|
||||
|
|
@ -1478,21 +1426,23 @@ static int chachapoly_encrypt(struct aead_request *req)
|
|||
struct device *jrdev = ctx->jrdev;
|
||||
bool all_contig;
|
||||
u32 *desc;
|
||||
int ret;
|
||||
int ret = 0;
|
||||
|
||||
edesc = aead_edesc_alloc(req, CHACHAPOLY_DESC_JOB_IO_LEN, &all_contig,
|
||||
true);
|
||||
/* allocate extended descriptor */
|
||||
edesc = aead_edesc_alloc(req, AUTHENC_DESC_JOB_IO_LEN,
|
||||
&all_contig, encrypt);
|
||||
if (IS_ERR(edesc))
|
||||
return PTR_ERR(edesc);
|
||||
|
||||
/* Create and submit job descriptor */
|
||||
init_authenc_job(req, edesc, all_contig, encrypt);
|
||||
|
||||
print_hex_dump_debug("aead jobdesc@"__stringify(__LINE__)": ",
|
||||
DUMP_PREFIX_ADDRESS, 16, 4, edesc->hw_desc,
|
||||
desc_bytes(edesc->hw_desc), 1);
|
||||
|
||||
desc = edesc->hw_desc;
|
||||
|
||||
init_chachapoly_job(req, edesc, all_contig, true);
|
||||
print_hex_dump_debug("chachapoly jobdesc@" __stringify(__LINE__)": ",
|
||||
DUMP_PREFIX_ADDRESS, 16, 4, desc, desc_bytes(desc),
|
||||
1);
|
||||
|
||||
ret = caam_jr_enqueue(jrdev, desc, aead_encrypt_done, req);
|
||||
ret = caam_jr_enqueue(jrdev, desc, aead_crypt_done, req);
|
||||
if (!ret) {
|
||||
ret = -EINPROGRESS;
|
||||
} else {
|
||||
|
|
@ -1503,7 +1453,17 @@ static int chachapoly_encrypt(struct aead_request *req)
|
|||
return ret;
|
||||
}
|
||||
|
||||
static int chachapoly_decrypt(struct aead_request *req)
|
||||
static int aead_encrypt(struct aead_request *req)
|
||||
{
|
||||
return aead_crypt(req, true);
|
||||
}
|
||||
|
||||
static int aead_decrypt(struct aead_request *req)
|
||||
{
|
||||
return aead_crypt(req, false);
|
||||
}
|
||||
|
||||
static inline int gcm_crypt(struct aead_request *req, bool encrypt)
|
||||
{
|
||||
struct aead_edesc *edesc;
|
||||
struct crypto_aead *aead = crypto_aead_reqtfm(req);
|
||||
|
|
@ -1511,21 +1471,23 @@ static int chachapoly_decrypt(struct aead_request *req)
|
|||
struct device *jrdev = ctx->jrdev;
|
||||
bool all_contig;
|
||||
u32 *desc;
|
||||
int ret;
|
||||
int ret = 0;
|
||||
|
||||
edesc = aead_edesc_alloc(req, CHACHAPOLY_DESC_JOB_IO_LEN, &all_contig,
|
||||
false);
|
||||
/* allocate extended descriptor */
|
||||
edesc = aead_edesc_alloc(req, GCM_DESC_JOB_IO_LEN, &all_contig,
|
||||
encrypt);
|
||||
if (IS_ERR(edesc))
|
||||
return PTR_ERR(edesc);
|
||||
|
||||
/* Create and submit job descriptor */
|
||||
init_gcm_job(req, edesc, all_contig, encrypt);
|
||||
|
||||
print_hex_dump_debug("aead jobdesc@"__stringify(__LINE__)": ",
|
||||
DUMP_PREFIX_ADDRESS, 16, 4, edesc->hw_desc,
|
||||
desc_bytes(edesc->hw_desc), 1);
|
||||
|
||||
desc = edesc->hw_desc;
|
||||
|
||||
init_chachapoly_job(req, edesc, all_contig, false);
|
||||
print_hex_dump_debug("chachapoly jobdesc@" __stringify(__LINE__)": ",
|
||||
DUMP_PREFIX_ADDRESS, 16, 4, desc, desc_bytes(desc),
|
||||
1);
|
||||
|
||||
ret = caam_jr_enqueue(jrdev, desc, aead_decrypt_done, req);
|
||||
ret = caam_jr_enqueue(jrdev, desc, aead_crypt_done, req);
|
||||
if (!ret) {
|
||||
ret = -EINPROGRESS;
|
||||
} else {
|
||||
|
|
@ -1536,124 +1498,26 @@ static int chachapoly_decrypt(struct aead_request *req)
|
|||
return ret;
|
||||
}
|
||||
|
||||
static int gcm_encrypt(struct aead_request *req)
|
||||
{
|
||||
return gcm_crypt(req, true);
|
||||
}
|
||||
|
||||
static int gcm_decrypt(struct aead_request *req)
|
||||
{
|
||||
return gcm_crypt(req, false);
|
||||
}
|
||||
|
||||
static int ipsec_gcm_encrypt(struct aead_request *req)
|
||||
{
|
||||
return crypto_ipsec_check_assoclen(req->assoclen) ? : gcm_encrypt(req);
|
||||
}
|
||||
|
||||
static int aead_encrypt(struct aead_request *req)
|
||||
{
|
||||
struct aead_edesc *edesc;
|
||||
struct crypto_aead *aead = crypto_aead_reqtfm(req);
|
||||
struct caam_ctx *ctx = crypto_aead_ctx(aead);
|
||||
struct device *jrdev = ctx->jrdev;
|
||||
bool all_contig;
|
||||
u32 *desc;
|
||||
int ret = 0;
|
||||
|
||||
/* allocate extended descriptor */
|
||||
edesc = aead_edesc_alloc(req, AUTHENC_DESC_JOB_IO_LEN,
|
||||
&all_contig, true);
|
||||
if (IS_ERR(edesc))
|
||||
return PTR_ERR(edesc);
|
||||
|
||||
/* Create and submit job descriptor */
|
||||
init_authenc_job(req, edesc, all_contig, true);
|
||||
|
||||
print_hex_dump_debug("aead jobdesc@"__stringify(__LINE__)": ",
|
||||
DUMP_PREFIX_ADDRESS, 16, 4, edesc->hw_desc,
|
||||
desc_bytes(edesc->hw_desc), 1);
|
||||
|
||||
desc = edesc->hw_desc;
|
||||
ret = caam_jr_enqueue(jrdev, desc, aead_encrypt_done, req);
|
||||
if (!ret) {
|
||||
ret = -EINPROGRESS;
|
||||
} else {
|
||||
aead_unmap(jrdev, edesc, req);
|
||||
kfree(edesc);
|
||||
}
|
||||
|
||||
return ret;
|
||||
}
|
||||
|
||||
static int gcm_decrypt(struct aead_request *req)
|
||||
{
|
||||
struct aead_edesc *edesc;
|
||||
struct crypto_aead *aead = crypto_aead_reqtfm(req);
|
||||
struct caam_ctx *ctx = crypto_aead_ctx(aead);
|
||||
struct device *jrdev = ctx->jrdev;
|
||||
bool all_contig;
|
||||
u32 *desc;
|
||||
int ret = 0;
|
||||
|
||||
/* allocate extended descriptor */
|
||||
edesc = aead_edesc_alloc(req, GCM_DESC_JOB_IO_LEN, &all_contig, false);
|
||||
if (IS_ERR(edesc))
|
||||
return PTR_ERR(edesc);
|
||||
|
||||
/* Create and submit job descriptor*/
|
||||
init_gcm_job(req, edesc, all_contig, false);
|
||||
|
||||
print_hex_dump_debug("aead jobdesc@"__stringify(__LINE__)": ",
|
||||
DUMP_PREFIX_ADDRESS, 16, 4, edesc->hw_desc,
|
||||
desc_bytes(edesc->hw_desc), 1);
|
||||
|
||||
desc = edesc->hw_desc;
|
||||
ret = caam_jr_enqueue(jrdev, desc, aead_decrypt_done, req);
|
||||
if (!ret) {
|
||||
ret = -EINPROGRESS;
|
||||
} else {
|
||||
aead_unmap(jrdev, edesc, req);
|
||||
kfree(edesc);
|
||||
}
|
||||
|
||||
return ret;
|
||||
}
|
||||
|
||||
static int ipsec_gcm_decrypt(struct aead_request *req)
|
||||
{
|
||||
return crypto_ipsec_check_assoclen(req->assoclen) ? : gcm_decrypt(req);
|
||||
}
|
||||
|
||||
static int aead_decrypt(struct aead_request *req)
|
||||
{
|
||||
struct aead_edesc *edesc;
|
||||
struct crypto_aead *aead = crypto_aead_reqtfm(req);
|
||||
struct caam_ctx *ctx = crypto_aead_ctx(aead);
|
||||
struct device *jrdev = ctx->jrdev;
|
||||
bool all_contig;
|
||||
u32 *desc;
|
||||
int ret = 0;
|
||||
|
||||
caam_dump_sg("dec src@" __stringify(__LINE__)": ",
|
||||
DUMP_PREFIX_ADDRESS, 16, 4, req->src,
|
||||
req->assoclen + req->cryptlen, 1);
|
||||
|
||||
/* allocate extended descriptor */
|
||||
edesc = aead_edesc_alloc(req, AUTHENC_DESC_JOB_IO_LEN,
|
||||
&all_contig, false);
|
||||
if (IS_ERR(edesc))
|
||||
return PTR_ERR(edesc);
|
||||
|
||||
/* Create and submit job descriptor*/
|
||||
init_authenc_job(req, edesc, all_contig, false);
|
||||
|
||||
print_hex_dump_debug("aead jobdesc@"__stringify(__LINE__)": ",
|
||||
DUMP_PREFIX_ADDRESS, 16, 4, edesc->hw_desc,
|
||||
desc_bytes(edesc->hw_desc), 1);
|
||||
|
||||
desc = edesc->hw_desc;
|
||||
ret = caam_jr_enqueue(jrdev, desc, aead_decrypt_done, req);
|
||||
if (!ret) {
|
||||
ret = -EINPROGRESS;
|
||||
} else {
|
||||
aead_unmap(jrdev, edesc, req);
|
||||
kfree(edesc);
|
||||
}
|
||||
|
||||
return ret;
|
||||
}
|
||||
|
||||
/*
|
||||
* allocate and map the skcipher extended descriptor for skcipher
|
||||
*/
|
||||
|
|
@ -1815,7 +1679,7 @@ static struct skcipher_edesc *skcipher_edesc_alloc(struct skcipher_request *req,
|
|||
return edesc;
|
||||
}
|
||||
|
||||
static int skcipher_encrypt(struct skcipher_request *req)
|
||||
static inline int skcipher_crypt(struct skcipher_request *req, bool encrypt)
|
||||
{
|
||||
struct skcipher_edesc *edesc;
|
||||
struct crypto_skcipher *skcipher = crypto_skcipher_reqtfm(req);
|
||||
|
|
@ -1833,14 +1697,14 @@ static int skcipher_encrypt(struct skcipher_request *req)
|
|||
return PTR_ERR(edesc);
|
||||
|
||||
/* Create and submit job descriptor*/
|
||||
init_skcipher_job(req, edesc, true);
|
||||
init_skcipher_job(req, edesc, encrypt);
|
||||
|
||||
print_hex_dump_debug("skcipher jobdesc@" __stringify(__LINE__)": ",
|
||||
DUMP_PREFIX_ADDRESS, 16, 4, edesc->hw_desc,
|
||||
desc_bytes(edesc->hw_desc), 1);
|
||||
|
||||
desc = edesc->hw_desc;
|
||||
ret = caam_jr_enqueue(jrdev, desc, skcipher_encrypt_done, req);
|
||||
ret = caam_jr_enqueue(jrdev, desc, skcipher_crypt_done, req);
|
||||
|
||||
if (!ret) {
|
||||
ret = -EINPROGRESS;
|
||||
|
|
@ -1852,40 +1716,14 @@ static int skcipher_encrypt(struct skcipher_request *req)
|
|||
return ret;
|
||||
}
|
||||
|
||||
static int skcipher_encrypt(struct skcipher_request *req)
|
||||
{
|
||||
return skcipher_crypt(req, true);
|
||||
}
|
||||
|
||||
static int skcipher_decrypt(struct skcipher_request *req)
|
||||
{
|
||||
struct skcipher_edesc *edesc;
|
||||
struct crypto_skcipher *skcipher = crypto_skcipher_reqtfm(req);
|
||||
struct caam_ctx *ctx = crypto_skcipher_ctx(skcipher);
|
||||
struct device *jrdev = ctx->jrdev;
|
||||
u32 *desc;
|
||||
int ret = 0;
|
||||
|
||||
if (!req->cryptlen)
|
||||
return 0;
|
||||
|
||||
/* allocate extended descriptor */
|
||||
edesc = skcipher_edesc_alloc(req, DESC_JOB_IO_LEN * CAAM_CMD_SZ);
|
||||
if (IS_ERR(edesc))
|
||||
return PTR_ERR(edesc);
|
||||
|
||||
/* Create and submit job descriptor*/
|
||||
init_skcipher_job(req, edesc, false);
|
||||
desc = edesc->hw_desc;
|
||||
|
||||
print_hex_dump_debug("skcipher jobdesc@" __stringify(__LINE__)": ",
|
||||
DUMP_PREFIX_ADDRESS, 16, 4, edesc->hw_desc,
|
||||
desc_bytes(edesc->hw_desc), 1);
|
||||
|
||||
ret = caam_jr_enqueue(jrdev, desc, skcipher_decrypt_done, req);
|
||||
if (!ret) {
|
||||
ret = -EINPROGRESS;
|
||||
} else {
|
||||
skcipher_unmap(jrdev, edesc, req);
|
||||
kfree(edesc);
|
||||
}
|
||||
|
||||
return ret;
|
||||
return skcipher_crypt(req, false);
|
||||
}
|
||||
|
||||
static struct caam_skcipher_alg driver_algs[] = {
|
||||
|
|
|
|||
Загрузка…
Ссылка в новой задаче