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
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@ -941,7 +941,7 @@ static void skcipher_unmap(struct device *dev, struct skcipher_edesc *edesc,
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edesc->sec4_sg_dma, edesc->sec4_sg_bytes);
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}
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static void aead_encrypt_done(struct device *jrdev, u32 *desc, u32 err,
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static void aead_crypt_done(struct device *jrdev, u32 *desc, u32 err,
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void *context)
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{
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struct aead_request *req = context;
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@ -962,68 +962,7 @@ static void aead_encrypt_done(struct device *jrdev, u32 *desc, u32 err,
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aead_request_complete(req, ecode);
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}
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static void aead_decrypt_done(struct device *jrdev, u32 *desc, u32 err,
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void *context)
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{
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struct aead_request *req = context;
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struct aead_edesc *edesc;
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int ecode = 0;
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dev_dbg(jrdev, "%s %d: err 0x%x\n", __func__, __LINE__, err);
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edesc = container_of(desc, struct aead_edesc, hw_desc[0]);
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if (err)
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ecode = caam_jr_strstatus(jrdev, err);
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aead_unmap(jrdev, edesc, req);
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kfree(edesc);
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aead_request_complete(req, ecode);
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}
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static void skcipher_encrypt_done(struct device *jrdev, u32 *desc, u32 err,
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void *context)
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{
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struct skcipher_request *req = context;
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struct skcipher_edesc *edesc;
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struct crypto_skcipher *skcipher = crypto_skcipher_reqtfm(req);
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int ivsize = crypto_skcipher_ivsize(skcipher);
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int ecode = 0;
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dev_dbg(jrdev, "%s %d: err 0x%x\n", __func__, __LINE__, err);
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edesc = container_of(desc, struct skcipher_edesc, hw_desc[0]);
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if (err)
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ecode = caam_jr_strstatus(jrdev, err);
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skcipher_unmap(jrdev, edesc, req);
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/*
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* The crypto API expects us to set the IV (req->iv) to the last
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* ciphertext block (CBC mode) or last counter (CTR mode).
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* This is used e.g. by the CTS mode.
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*/
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if (ivsize && !ecode) {
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memcpy(req->iv, (u8 *)edesc->sec4_sg + edesc->sec4_sg_bytes,
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ivsize);
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print_hex_dump_debug("dstiv @"__stringify(__LINE__)": ",
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DUMP_PREFIX_ADDRESS, 16, 4, req->iv,
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edesc->src_nents > 1 ? 100 : ivsize, 1);
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}
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caam_dump_sg("dst @" __stringify(__LINE__)": ",
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DUMP_PREFIX_ADDRESS, 16, 4, req->dst,
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edesc->dst_nents > 1 ? 100 : req->cryptlen, 1);
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kfree(edesc);
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skcipher_request_complete(req, ecode);
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}
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static void skcipher_decrypt_done(struct device *jrdev, u32 *desc, u32 err,
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static void skcipher_crypt_done(struct device *jrdev, u32 *desc, u32 err,
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void *context)
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{
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struct skcipher_request *req = context;
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@ -1436,7 +1375,7 @@ static struct aead_edesc *aead_edesc_alloc(struct aead_request *req,
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return edesc;
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}
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static int gcm_encrypt(struct aead_request *req)
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static inline int chachapoly_crypt(struct aead_request *req, bool encrypt)
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{
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struct aead_edesc *edesc;
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struct crypto_aead *aead = crypto_aead_reqtfm(req);
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@ -1444,22 +1383,21 @@ static int gcm_encrypt(struct aead_request *req)
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struct device *jrdev = ctx->jrdev;
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bool all_contig;
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u32 *desc;
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int ret = 0;
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int ret;
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/* allocate extended descriptor */
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edesc = aead_edesc_alloc(req, GCM_DESC_JOB_IO_LEN, &all_contig, true);
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edesc = aead_edesc_alloc(req, CHACHAPOLY_DESC_JOB_IO_LEN, &all_contig,
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encrypt);
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if (IS_ERR(edesc))
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return PTR_ERR(edesc);
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/* Create and submit job descriptor */
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init_gcm_job(req, edesc, all_contig, true);
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print_hex_dump_debug("aead jobdesc@"__stringify(__LINE__)": ",
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DUMP_PREFIX_ADDRESS, 16, 4, edesc->hw_desc,
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desc_bytes(edesc->hw_desc), 1);
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desc = edesc->hw_desc;
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ret = caam_jr_enqueue(jrdev, desc, aead_encrypt_done, req);
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init_chachapoly_job(req, edesc, all_contig, encrypt);
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print_hex_dump_debug("chachapoly jobdesc@" __stringify(__LINE__)": ",
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DUMP_PREFIX_ADDRESS, 16, 4, desc, desc_bytes(desc),
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1);
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ret = caam_jr_enqueue(jrdev, desc, aead_crypt_done, req);
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if (!ret) {
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ret = -EINPROGRESS;
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} else {
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@ -1471,6 +1409,16 @@ static int gcm_encrypt(struct aead_request *req)
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}
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static int chachapoly_encrypt(struct aead_request *req)
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{
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return chachapoly_crypt(req, true);
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}
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static int chachapoly_decrypt(struct aead_request *req)
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{
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return chachapoly_crypt(req, false);
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}
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static inline int aead_crypt(struct aead_request *req, bool encrypt)
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{
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struct aead_edesc *edesc;
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struct crypto_aead *aead = crypto_aead_reqtfm(req);
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@ -1478,21 +1426,23 @@ static int chachapoly_encrypt(struct aead_request *req)
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struct device *jrdev = ctx->jrdev;
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bool all_contig;
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u32 *desc;
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int ret;
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int ret = 0;
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edesc = aead_edesc_alloc(req, CHACHAPOLY_DESC_JOB_IO_LEN, &all_contig,
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true);
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/* allocate extended descriptor */
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edesc = aead_edesc_alloc(req, AUTHENC_DESC_JOB_IO_LEN,
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&all_contig, encrypt);
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if (IS_ERR(edesc))
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return PTR_ERR(edesc);
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/* Create and submit job descriptor */
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init_authenc_job(req, edesc, all_contig, encrypt);
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print_hex_dump_debug("aead jobdesc@"__stringify(__LINE__)": ",
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DUMP_PREFIX_ADDRESS, 16, 4, edesc->hw_desc,
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desc_bytes(edesc->hw_desc), 1);
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desc = edesc->hw_desc;
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init_chachapoly_job(req, edesc, all_contig, true);
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print_hex_dump_debug("chachapoly jobdesc@" __stringify(__LINE__)": ",
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DUMP_PREFIX_ADDRESS, 16, 4, desc, desc_bytes(desc),
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1);
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ret = caam_jr_enqueue(jrdev, desc, aead_encrypt_done, req);
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ret = caam_jr_enqueue(jrdev, desc, aead_crypt_done, req);
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if (!ret) {
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ret = -EINPROGRESS;
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} else {
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@ -1503,7 +1453,17 @@ static int chachapoly_encrypt(struct aead_request *req)
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return ret;
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}
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static int chachapoly_decrypt(struct aead_request *req)
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static int aead_encrypt(struct aead_request *req)
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{
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return aead_crypt(req, true);
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}
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static int aead_decrypt(struct aead_request *req)
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{
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return aead_crypt(req, false);
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}
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static inline int gcm_crypt(struct aead_request *req, bool encrypt)
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{
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struct aead_edesc *edesc;
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struct crypto_aead *aead = crypto_aead_reqtfm(req);
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@ -1511,21 +1471,23 @@ static int chachapoly_decrypt(struct aead_request *req)
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struct device *jrdev = ctx->jrdev;
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bool all_contig;
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u32 *desc;
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int ret;
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int ret = 0;
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edesc = aead_edesc_alloc(req, CHACHAPOLY_DESC_JOB_IO_LEN, &all_contig,
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false);
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/* allocate extended descriptor */
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edesc = aead_edesc_alloc(req, GCM_DESC_JOB_IO_LEN, &all_contig,
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encrypt);
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if (IS_ERR(edesc))
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return PTR_ERR(edesc);
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/* Create and submit job descriptor */
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init_gcm_job(req, edesc, all_contig, encrypt);
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print_hex_dump_debug("aead jobdesc@"__stringify(__LINE__)": ",
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DUMP_PREFIX_ADDRESS, 16, 4, edesc->hw_desc,
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desc_bytes(edesc->hw_desc), 1);
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desc = edesc->hw_desc;
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init_chachapoly_job(req, edesc, all_contig, false);
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print_hex_dump_debug("chachapoly jobdesc@" __stringify(__LINE__)": ",
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DUMP_PREFIX_ADDRESS, 16, 4, desc, desc_bytes(desc),
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1);
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ret = caam_jr_enqueue(jrdev, desc, aead_decrypt_done, req);
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ret = caam_jr_enqueue(jrdev, desc, aead_crypt_done, req);
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if (!ret) {
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ret = -EINPROGRESS;
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} else {
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@ -1536,124 +1498,26 @@ static int chachapoly_decrypt(struct aead_request *req)
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return ret;
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}
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static int gcm_encrypt(struct aead_request *req)
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{
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return gcm_crypt(req, true);
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}
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static int gcm_decrypt(struct aead_request *req)
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{
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return gcm_crypt(req, false);
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}
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static int ipsec_gcm_encrypt(struct aead_request *req)
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{
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return crypto_ipsec_check_assoclen(req->assoclen) ? : gcm_encrypt(req);
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}
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static int aead_encrypt(struct aead_request *req)
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{
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struct aead_edesc *edesc;
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struct crypto_aead *aead = crypto_aead_reqtfm(req);
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struct caam_ctx *ctx = crypto_aead_ctx(aead);
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struct device *jrdev = ctx->jrdev;
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bool all_contig;
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u32 *desc;
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int ret = 0;
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/* allocate extended descriptor */
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edesc = aead_edesc_alloc(req, AUTHENC_DESC_JOB_IO_LEN,
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&all_contig, true);
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if (IS_ERR(edesc))
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return PTR_ERR(edesc);
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/* Create and submit job descriptor */
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init_authenc_job(req, edesc, all_contig, true);
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print_hex_dump_debug("aead jobdesc@"__stringify(__LINE__)": ",
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DUMP_PREFIX_ADDRESS, 16, 4, edesc->hw_desc,
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desc_bytes(edesc->hw_desc), 1);
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desc = edesc->hw_desc;
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ret = caam_jr_enqueue(jrdev, desc, aead_encrypt_done, req);
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if (!ret) {
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ret = -EINPROGRESS;
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} else {
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aead_unmap(jrdev, edesc, req);
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kfree(edesc);
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}
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return ret;
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}
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static int gcm_decrypt(struct aead_request *req)
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{
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struct aead_edesc *edesc;
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struct crypto_aead *aead = crypto_aead_reqtfm(req);
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struct caam_ctx *ctx = crypto_aead_ctx(aead);
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struct device *jrdev = ctx->jrdev;
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bool all_contig;
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u32 *desc;
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int ret = 0;
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/* allocate extended descriptor */
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edesc = aead_edesc_alloc(req, GCM_DESC_JOB_IO_LEN, &all_contig, false);
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if (IS_ERR(edesc))
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return PTR_ERR(edesc);
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/* Create and submit job descriptor*/
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init_gcm_job(req, edesc, all_contig, false);
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print_hex_dump_debug("aead jobdesc@"__stringify(__LINE__)": ",
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DUMP_PREFIX_ADDRESS, 16, 4, edesc->hw_desc,
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desc_bytes(edesc->hw_desc), 1);
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desc = edesc->hw_desc;
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ret = caam_jr_enqueue(jrdev, desc, aead_decrypt_done, req);
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if (!ret) {
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ret = -EINPROGRESS;
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} else {
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aead_unmap(jrdev, edesc, req);
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kfree(edesc);
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}
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return ret;
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}
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static int ipsec_gcm_decrypt(struct aead_request *req)
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{
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return crypto_ipsec_check_assoclen(req->assoclen) ? : gcm_decrypt(req);
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}
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static int aead_decrypt(struct aead_request *req)
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{
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struct aead_edesc *edesc;
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struct crypto_aead *aead = crypto_aead_reqtfm(req);
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struct caam_ctx *ctx = crypto_aead_ctx(aead);
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struct device *jrdev = ctx->jrdev;
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bool all_contig;
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u32 *desc;
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int ret = 0;
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caam_dump_sg("dec src@" __stringify(__LINE__)": ",
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DUMP_PREFIX_ADDRESS, 16, 4, req->src,
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req->assoclen + req->cryptlen, 1);
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/* allocate extended descriptor */
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edesc = aead_edesc_alloc(req, AUTHENC_DESC_JOB_IO_LEN,
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&all_contig, false);
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if (IS_ERR(edesc))
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return PTR_ERR(edesc);
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/* Create and submit job descriptor*/
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init_authenc_job(req, edesc, all_contig, false);
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print_hex_dump_debug("aead jobdesc@"__stringify(__LINE__)": ",
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DUMP_PREFIX_ADDRESS, 16, 4, edesc->hw_desc,
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desc_bytes(edesc->hw_desc), 1);
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desc = edesc->hw_desc;
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ret = caam_jr_enqueue(jrdev, desc, aead_decrypt_done, req);
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if (!ret) {
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ret = -EINPROGRESS;
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} else {
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aead_unmap(jrdev, edesc, req);
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kfree(edesc);
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}
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return ret;
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}
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/*
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* allocate and map the skcipher extended descriptor for skcipher
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*/
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@ -1815,7 +1679,7 @@ static struct skcipher_edesc *skcipher_edesc_alloc(struct skcipher_request *req,
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return edesc;
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}
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static int skcipher_encrypt(struct skcipher_request *req)
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static inline int skcipher_crypt(struct skcipher_request *req, bool encrypt)
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{
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struct skcipher_edesc *edesc;
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struct crypto_skcipher *skcipher = crypto_skcipher_reqtfm(req);
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@ -1833,14 +1697,14 @@ static int skcipher_encrypt(struct skcipher_request *req)
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return PTR_ERR(edesc);
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/* Create and submit job descriptor*/
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init_skcipher_job(req, edesc, true);
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init_skcipher_job(req, edesc, encrypt);
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print_hex_dump_debug("skcipher jobdesc@" __stringify(__LINE__)": ",
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DUMP_PREFIX_ADDRESS, 16, 4, edesc->hw_desc,
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desc_bytes(edesc->hw_desc), 1);
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desc = edesc->hw_desc;
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ret = caam_jr_enqueue(jrdev, desc, skcipher_encrypt_done, req);
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ret = caam_jr_enqueue(jrdev, desc, skcipher_crypt_done, req);
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if (!ret) {
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ret = -EINPROGRESS;
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@ -1852,40 +1716,14 @@ static int skcipher_encrypt(struct skcipher_request *req)
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return ret;
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}
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static int skcipher_encrypt(struct skcipher_request *req)
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{
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return skcipher_crypt(req, true);
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}
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static int skcipher_decrypt(struct skcipher_request *req)
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{
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struct skcipher_edesc *edesc;
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struct crypto_skcipher *skcipher = crypto_skcipher_reqtfm(req);
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struct caam_ctx *ctx = crypto_skcipher_ctx(skcipher);
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struct device *jrdev = ctx->jrdev;
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u32 *desc;
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int ret = 0;
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if (!req->cryptlen)
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return 0;
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/* allocate extended descriptor */
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edesc = skcipher_edesc_alloc(req, DESC_JOB_IO_LEN * CAAM_CMD_SZ);
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if (IS_ERR(edesc))
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return PTR_ERR(edesc);
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/* Create and submit job descriptor*/
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init_skcipher_job(req, edesc, false);
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desc = edesc->hw_desc;
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print_hex_dump_debug("skcipher jobdesc@" __stringify(__LINE__)": ",
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DUMP_PREFIX_ADDRESS, 16, 4, edesc->hw_desc,
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desc_bytes(edesc->hw_desc), 1);
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ret = caam_jr_enqueue(jrdev, desc, skcipher_decrypt_done, req);
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if (!ret) {
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ret = -EINPROGRESS;
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} else {
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skcipher_unmap(jrdev, edesc, req);
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kfree(edesc);
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}
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return ret;
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return skcipher_crypt(req, false);
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}
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static struct caam_skcipher_alg driver_algs[] = {
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Загрузка…
Ссылка в новой задаче