diff options
Diffstat (limited to 'crypto')
| -rw-r--r-- | crypto/async_tx/Kconfig | 5 | ||||
| -rw-r--r-- | crypto/async_tx/async_pq.c | 14 | ||||
| -rw-r--r-- | crypto/async_tx/async_xor.c | 15 | ||||
| -rw-r--r-- | crypto/gcm.c | 107 | ||||
| -rw-r--r-- | crypto/proc.c | 12 |
5 files changed, 104 insertions, 49 deletions
diff --git a/crypto/async_tx/Kconfig b/crypto/async_tx/Kconfig index e5aeb2b79e6..e28e276ac61 100644 --- a/crypto/async_tx/Kconfig +++ b/crypto/async_tx/Kconfig @@ -23,3 +23,8 @@ config ASYNC_RAID6_RECOV select ASYNC_CORE select ASYNC_PQ +config ASYNC_TX_DISABLE_PQ_VAL_DMA + bool + +config ASYNC_TX_DISABLE_XOR_VAL_DMA + bool diff --git a/crypto/async_tx/async_pq.c b/crypto/async_tx/async_pq.c index 6b5cc4fba59..ec87f53d505 100644 --- a/crypto/async_tx/async_pq.c +++ b/crypto/async_tx/async_pq.c @@ -240,6 +240,16 @@ async_gen_syndrome(struct page **blocks, unsigned int offset, int disks, } EXPORT_SYMBOL_GPL(async_gen_syndrome); +static inline struct dma_chan * +pq_val_chan(struct async_submit_ctl *submit, struct page **blocks, int disks, size_t len) +{ + #ifdef CONFIG_ASYNC_TX_DISABLE_PQ_VAL_DMA + return NULL; + #endif + return async_tx_find_channel(submit, DMA_PQ_VAL, NULL, 0, blocks, + disks, len); +} + /** * async_syndrome_val - asynchronously validate a raid6 syndrome * @blocks: source blocks from idx 0..disks-3, P @ disks-2 and Q @ disks-1 @@ -260,9 +270,7 @@ async_syndrome_val(struct page **blocks, unsigned int offset, int disks, size_t len, enum sum_check_flags *pqres, struct page *spare, struct async_submit_ctl *submit) { - struct dma_chan *chan = async_tx_find_channel(submit, DMA_PQ_VAL, - NULL, 0, blocks, disks, - len); + struct dma_chan *chan = pq_val_chan(submit, blocks, disks, len); struct dma_device *device = chan ? chan->device : NULL; struct dma_async_tx_descriptor *tx; unsigned char coefs[disks-2]; diff --git a/crypto/async_tx/async_xor.c b/crypto/async_tx/async_xor.c index 79182dcb91b..079ae8ca590 100644 --- a/crypto/async_tx/async_xor.c +++ b/crypto/async_tx/async_xor.c @@ -234,6 +234,17 @@ static int page_is_zero(struct page *p, unsigned int offset, size_t len) memcmp(a, a + 4, len - 4) == 0); } +static inline struct dma_chan * +xor_val_chan(struct async_submit_ctl *submit, struct page *dest, + struct page **src_list, int src_cnt, size_t len) +{ + #ifdef CONFIG_ASYNC_TX_DISABLE_XOR_VAL_DMA + return NULL; + #endif + return async_tx_find_channel(submit, DMA_XOR_VAL, &dest, 1, src_list, + src_cnt, len); +} + /** * async_xor_val - attempt a xor parity check with a dma engine. * @dest: destination page used if the xor is performed synchronously @@ -255,9 +266,7 @@ async_xor_val(struct page *dest, struct page **src_list, unsigned int offset, int src_cnt, size_t len, enum sum_check_flags *result, struct async_submit_ctl *submit) { - struct dma_chan *chan = async_tx_find_channel(submit, DMA_XOR_VAL, - &dest, 1, src_list, - src_cnt, len); + struct dma_chan *chan = xor_val_chan(submit, dest, src_list, src_cnt, len); struct dma_device *device = chan ? chan->device : NULL; struct dma_async_tx_descriptor *tx = NULL; dma_addr_t *dma_src = NULL; diff --git a/crypto/gcm.c b/crypto/gcm.c index 5fc3292483e..c6547130624 100644 --- a/crypto/gcm.c +++ b/crypto/gcm.c @@ -40,7 +40,7 @@ struct crypto_rfc4106_ctx { struct crypto_gcm_ghash_ctx { unsigned int cryptlen; struct scatterlist *src; - crypto_completion_t complete; + void (*complete)(struct aead_request *req, int err); }; struct crypto_gcm_req_priv_ctx { @@ -267,23 +267,26 @@ static int gcm_hash_final(struct aead_request *req, return crypto_ahash_final(ahreq); } -static void gcm_hash_final_done(struct crypto_async_request *areq, - int err) +static void __gcm_hash_final_done(struct aead_request *req, int err) { - struct aead_request *req = areq->data; struct crypto_gcm_req_priv_ctx *pctx = crypto_gcm_reqctx(req); struct crypto_gcm_ghash_ctx *gctx = &pctx->ghash_ctx; if (!err) crypto_xor(pctx->auth_tag, pctx->iauth_tag, 16); - gctx->complete(areq, err); + gctx->complete(req, err); } -static void gcm_hash_len_done(struct crypto_async_request *areq, - int err) +static void gcm_hash_final_done(struct crypto_async_request *areq, int err) { struct aead_request *req = areq->data; + + __gcm_hash_final_done(req, err); +} + +static void __gcm_hash_len_done(struct aead_request *req, int err) +{ struct crypto_gcm_req_priv_ctx *pctx = crypto_gcm_reqctx(req); if (!err) { @@ -292,13 +295,18 @@ static void gcm_hash_len_done(struct crypto_async_request *areq, return; } - gcm_hash_final_done(areq, err); + __gcm_hash_final_done(req, err); } -static void gcm_hash_crypt_remain_done(struct crypto_async_request *areq, - int err) +static void gcm_hash_len_done(struct crypto_async_request *areq, int err) { struct aead_request *req = areq->data; + + __gcm_hash_len_done(req, err); +} + +static void __gcm_hash_crypt_remain_done(struct aead_request *req, int err) +{ struct crypto_gcm_req_priv_ctx *pctx = crypto_gcm_reqctx(req); if (!err) { @@ -307,13 +315,19 @@ static void gcm_hash_crypt_remain_done(struct crypto_async_request *areq, return; } - gcm_hash_len_done(areq, err); + __gcm_hash_len_done(req, err); } -static void gcm_hash_crypt_done(struct crypto_async_request *areq, - int err) +static void gcm_hash_crypt_remain_done(struct crypto_async_request *areq, + int err) { struct aead_request *req = areq->data; + + __gcm_hash_crypt_remain_done(req, err); +} + +static void __gcm_hash_crypt_done(struct aead_request *req, int err) +{ struct crypto_gcm_req_priv_ctx *pctx = crypto_gcm_reqctx(req); struct crypto_gcm_ghash_ctx *gctx = &pctx->ghash_ctx; unsigned int remain; @@ -327,13 +341,18 @@ static void gcm_hash_crypt_done(struct crypto_async_request *areq, return; } - gcm_hash_crypt_remain_done(areq, err); + __gcm_hash_crypt_remain_done(req, err); } -static void gcm_hash_assoc_remain_done(struct crypto_async_request *areq, - int err) +static void gcm_hash_crypt_done(struct crypto_async_request *areq, int err) { struct aead_request *req = areq->data; + + __gcm_hash_crypt_done(req, err); +} + +static void __gcm_hash_assoc_remain_done(struct aead_request *req, int err) +{ struct crypto_gcm_req_priv_ctx *pctx = crypto_gcm_reqctx(req); struct crypto_gcm_ghash_ctx *gctx = &pctx->ghash_ctx; crypto_completion_t complete; @@ -350,15 +369,21 @@ static void gcm_hash_assoc_remain_done(struct crypto_async_request *areq, } if (remain) - gcm_hash_crypt_done(areq, err); + __gcm_hash_crypt_done(req, err); else - gcm_hash_crypt_remain_done(areq, err); + __gcm_hash_crypt_remain_done(req, err); } -static void gcm_hash_assoc_done(struct crypto_async_request *areq, - int err) +static void gcm_hash_assoc_remain_done(struct crypto_async_request *areq, + int err) { struct aead_request *req = areq->data; + + __gcm_hash_assoc_remain_done(req, err); +} + +static void __gcm_hash_assoc_done(struct aead_request *req, int err) +{ struct crypto_gcm_req_priv_ctx *pctx = crypto_gcm_reqctx(req); unsigned int remain; @@ -371,13 +396,18 @@ static void gcm_hash_assoc_done(struct crypto_async_request *areq, return; } - gcm_hash_assoc_remain_done(areq, err); + __gcm_hash_assoc_remain_done(req, err); } -static void gcm_hash_init_done(struct crypto_async_request *areq, - int err) +static void gcm_hash_assoc_done(struct crypto_async_request *areq, int err) { struct aead_request *req = areq->data; + + __gcm_hash_assoc_done(req, err); +} + +static void __gcm_hash_init_done(struct aead_request *req, int err) +{ struct crypto_gcm_req_priv_ctx *pctx = crypto_gcm_reqctx(req); crypto_completion_t complete; unsigned int remain = 0; @@ -393,9 +423,16 @@ static void gcm_hash_init_done(struct crypto_async_request *areq, } if (remain) - gcm_hash_assoc_done(areq, err); + __gcm_hash_assoc_done(req, err); else - gcm_hash_assoc_remain_done(areq, err); + __gcm_hash_assoc_remain_done(req, err); +} + +static void gcm_hash_init_done(struct crypto_async_request *areq, int err) +{ + struct aead_request *req = areq->data; + + __gcm_hash_init_done(req, err); } static int gcm_hash(struct aead_request *req, @@ -457,10 +494,8 @@ static void gcm_enc_copy_hash(struct aead_request *req, crypto_aead_authsize(aead), 1); } -static void gcm_enc_hash_done(struct crypto_async_request *areq, - int err) +static void gcm_enc_hash_done(struct aead_request *req, int err) { - struct aead_request *req = areq->data; struct crypto_gcm_req_priv_ctx *pctx = crypto_gcm_reqctx(req); if (!err) @@ -469,8 +504,7 @@ static void gcm_enc_hash_done(struct crypto_async_request *areq, aead_request_complete(req, err); } -static void gcm_encrypt_done(struct crypto_async_request *areq, - int err) +static void gcm_encrypt_done(struct crypto_async_request *areq, int err) { struct aead_request *req = areq->data; struct crypto_gcm_req_priv_ctx *pctx = crypto_gcm_reqctx(req); @@ -479,9 +513,13 @@ static void gcm_encrypt_done(struct crypto_async_request *areq, err = gcm_hash(req, pctx); if (err == -EINPROGRESS || err == -EBUSY) return; + else if (!err) { + crypto_xor(pctx->auth_tag, pctx->iauth_tag, 16); + gcm_enc_copy_hash(req, pctx); + } } - gcm_enc_hash_done(areq, err); + aead_request_complete(req, err); } static int crypto_gcm_encrypt(struct aead_request *req) @@ -538,9 +576,8 @@ static void gcm_decrypt_done(struct crypto_async_request *areq, int err) aead_request_complete(req, err); } -static void gcm_dec_hash_done(struct crypto_async_request *areq, int err) +static void gcm_dec_hash_done(struct aead_request *req, int err) { - struct aead_request *req = areq->data; struct crypto_gcm_req_priv_ctx *pctx = crypto_gcm_reqctx(req); struct ablkcipher_request *abreq = &pctx->u.abreq; struct crypto_gcm_ghash_ctx *gctx = &pctx->ghash_ctx; @@ -552,9 +589,11 @@ static void gcm_dec_hash_done(struct crypto_async_request *areq, int err) err = crypto_ablkcipher_decrypt(abreq); if (err == -EINPROGRESS || err == -EBUSY) return; + else if (!err) + err = crypto_gcm_verify(req, pctx); } - gcm_decrypt_done(areq, err); + aead_request_complete(req, err); } static int crypto_gcm_decrypt(struct aead_request *req) diff --git a/crypto/proc.c b/crypto/proc.c index 5dc07e442fc..1c38733c224 100644 --- a/crypto/proc.c +++ b/crypto/proc.c @@ -25,28 +25,22 @@ #ifdef CONFIG_CRYPTO_FIPS static struct ctl_table crypto_sysctl_table[] = { { - .ctl_name = CTL_UNNUMBERED, .procname = "fips_enabled", .data = &fips_enabled, .maxlen = sizeof(int), .mode = 0444, - .proc_handler = &proc_dointvec - }, - { - .ctl_name = 0, + .proc_handler = proc_dointvec }, + {} }; static struct ctl_table crypto_dir_table[] = { { - .ctl_name = CTL_UNNUMBERED, .procname = "crypto", .mode = 0555, .child = crypto_sysctl_table }, - { - .ctl_name = 0, - }, + {} }; static struct ctl_table_header *crypto_sysctls; |