diff options
Diffstat (limited to 'arch/x86/crypto/aesni-intel_glue.c')
| -rw-r--r-- | arch/x86/crypto/aesni-intel_glue.c | 14 |
1 files changed, 12 insertions, 2 deletions
diff --git a/arch/x86/crypto/aesni-intel_glue.c b/arch/x86/crypto/aesni-intel_glue.c index e0e6340c8dad..2577613fb32b 100644 --- a/arch/x86/crypto/aesni-intel_glue.c +++ b/arch/x86/crypto/aesni-intel_glue.c @@ -828,9 +828,15 @@ static int rfc4106_init(struct crypto_tfm *tfm) struct cryptd_aead *cryptd_tfm; struct aesni_rfc4106_gcm_ctx *ctx = (struct aesni_rfc4106_gcm_ctx *) PTR_ALIGN((u8 *)crypto_tfm_ctx(tfm), AESNI_ALIGN); + struct crypto_aead *cryptd_child; + struct aesni_rfc4106_gcm_ctx *child_ctx; cryptd_tfm = cryptd_alloc_aead("__driver-gcm-aes-aesni", 0, 0); if (IS_ERR(cryptd_tfm)) return PTR_ERR(cryptd_tfm); + + cryptd_child = cryptd_aead_child(cryptd_tfm); + child_ctx = aesni_rfc4106_gcm_ctx_get(cryptd_child); + memcpy(child_ctx, ctx, sizeof(*ctx)); ctx->cryptd_tfm = cryptd_tfm; tfm->crt_aead.reqsize = sizeof(struct aead_request) + crypto_aead_reqsize(&cryptd_tfm->base); @@ -923,6 +929,9 @@ static int rfc4106_set_key(struct crypto_aead *parent, const u8 *key, int ret = 0; struct crypto_tfm *tfm = crypto_aead_tfm(parent); struct aesni_rfc4106_gcm_ctx *ctx = aesni_rfc4106_gcm_ctx_get(parent); + struct crypto_aead *cryptd_child = cryptd_aead_child(ctx->cryptd_tfm); + struct aesni_rfc4106_gcm_ctx *child_ctx = + aesni_rfc4106_gcm_ctx_get(cryptd_child); u8 *new_key_mem = NULL; if (key_len < 4) { @@ -966,6 +975,7 @@ static int rfc4106_set_key(struct crypto_aead *parent, const u8 *key, goto exit; } ret = rfc4106_set_hash_subkey(ctx->hash_subkey, key, key_len); + memcpy(child_ctx, ctx, sizeof(*ctx)); exit: kfree(new_key_mem); return ret; @@ -997,7 +1007,6 @@ static int rfc4106_encrypt(struct aead_request *req) int ret; struct crypto_aead *tfm = crypto_aead_reqtfm(req); struct aesni_rfc4106_gcm_ctx *ctx = aesni_rfc4106_gcm_ctx_get(tfm); - struct crypto_aead *cryptd_child = cryptd_aead_child(ctx->cryptd_tfm); if (!irq_fpu_usable()) { struct aead_request *cryptd_req = @@ -1006,6 +1015,7 @@ static int rfc4106_encrypt(struct aead_request *req) aead_request_set_tfm(cryptd_req, &ctx->cryptd_tfm->base); return crypto_aead_encrypt(cryptd_req); } else { + struct crypto_aead *cryptd_child = cryptd_aead_child(ctx->cryptd_tfm); kernel_fpu_begin(); ret = cryptd_child->base.crt_aead.encrypt(req); kernel_fpu_end(); @@ -1018,7 +1028,6 @@ static int rfc4106_decrypt(struct aead_request *req) int ret; struct crypto_aead *tfm = crypto_aead_reqtfm(req); struct aesni_rfc4106_gcm_ctx *ctx = aesni_rfc4106_gcm_ctx_get(tfm); - struct crypto_aead *cryptd_child = cryptd_aead_child(ctx->cryptd_tfm); if (!irq_fpu_usable()) { struct aead_request *cryptd_req = @@ -1027,6 +1036,7 @@ static int rfc4106_decrypt(struct aead_request *req) aead_request_set_tfm(cryptd_req, &ctx->cryptd_tfm->base); return crypto_aead_decrypt(cryptd_req); } else { + struct crypto_aead *cryptd_child = cryptd_aead_child(ctx->cryptd_tfm); kernel_fpu_begin(); ret = cryptd_child->base.crt_aead.decrypt(req); kernel_fpu_end(); |