diff options
Diffstat (limited to 'drivers/crypto/nx/nx-aes-gcm.c')
| -rw-r--r-- | drivers/crypto/nx/nx-aes-gcm.c | 29 |
1 files changed, 10 insertions, 19 deletions
diff --git a/drivers/crypto/nx/nx-aes-gcm.c b/drivers/crypto/nx/nx-aes-gcm.c index 7d3d67871270..19c6ed5baea4 100644 --- a/drivers/crypto/nx/nx-aes-gcm.c +++ b/drivers/crypto/nx/nx-aes-gcm.c @@ -166,8 +166,7 @@ static int nx_gca(struct nx_crypto_ctx *nx_ctx, return rc; } -static int gmac(struct aead_request *req, struct blkcipher_desc *desc, - unsigned int assoclen) +static int gmac(struct aead_request *req, const u8 *iv, unsigned int assoclen) { int rc; struct nx_crypto_ctx *nx_ctx = @@ -190,7 +189,7 @@ static int gmac(struct aead_request *req, struct blkcipher_desc *desc, nx_ctx->ap->databytelen/NX_PAGE_SIZE); /* Copy IV */ - memcpy(csbcpb->cpb.aes_gcm.iv_or_cnt, desc->info, AES_BLOCK_SIZE); + memcpy(csbcpb->cpb.aes_gcm.iv_or_cnt, iv, AES_BLOCK_SIZE); do { /* @@ -240,8 +239,7 @@ out: return rc; } -static int gcm_empty(struct aead_request *req, struct blkcipher_desc *desc, - int enc) +static int gcm_empty(struct aead_request *req, const u8 *iv, int enc) { int rc; struct nx_crypto_ctx *nx_ctx = @@ -268,7 +266,7 @@ static int gcm_empty(struct aead_request *req, struct blkcipher_desc *desc, len = AES_BLOCK_SIZE; /* Encrypt the counter/IV */ - in_sg = nx_build_sg_list(nx_ctx->in_sg, (u8 *) desc->info, + in_sg = nx_build_sg_list(nx_ctx->in_sg, (u8 *) iv, &len, nx_ctx->ap->sglen); if (len != AES_BLOCK_SIZE) @@ -285,7 +283,7 @@ static int gcm_empty(struct aead_request *req, struct blkcipher_desc *desc, nx_ctx->op.outlen = (nx_ctx->out_sg - out_sg) * sizeof(struct nx_sg); rc = nx_hcall_sync(nx_ctx, &nx_ctx->op, - desc->flags & CRYPTO_TFM_REQ_MAY_SLEEP); + req->base.flags & CRYPTO_TFM_REQ_MAY_SLEEP); if (rc) goto out; atomic_inc(&(nx_ctx->stats->aes_ops)); @@ -313,7 +311,6 @@ static int gcm_aes_nx_crypt(struct aead_request *req, int enc, crypto_aead_ctx(crypto_aead_reqtfm(req)); struct nx_gcm_rctx *rctx = aead_request_ctx(req); struct nx_csbcpb *csbcpb = nx_ctx->csbcpb; - struct blkcipher_desc desc; unsigned int nbytes = req->cryptlen; unsigned int processed = 0, to_process; unsigned long irq_flags; @@ -321,15 +318,14 @@ static int gcm_aes_nx_crypt(struct aead_request *req, int enc, spin_lock_irqsave(&nx_ctx->lock, irq_flags); - desc.info = rctx->iv; /* initialize the counter */ - *(u32 *)(desc.info + NX_GCM_CTR_OFFSET) = 1; + *(u32 *)&rctx->iv[NX_GCM_CTR_OFFSET] = 1; if (nbytes == 0) { if (assoclen == 0) - rc = gcm_empty(req, &desc, enc); + rc = gcm_empty(req, rctx->iv, enc); else - rc = gmac(req, &desc, assoclen); + rc = gmac(req, rctx->iv, assoclen); if (rc) goto out; else @@ -358,7 +354,7 @@ static int gcm_aes_nx_crypt(struct aead_request *req, int enc, to_process = nbytes - processed; csbcpb->cpb.aes_gcm.bit_length_data = nbytes * 8; - rc = nx_build_sg_lists(nx_ctx, &desc, req->dst, + rc = nx_build_sg_lists(nx_ctx, rctx->iv, req->dst, req->src, &to_process, processed + req->assoclen, csbcpb->cpb.aes_gcm.iv_or_cnt); @@ -377,7 +373,7 @@ static int gcm_aes_nx_crypt(struct aead_request *req, int enc, if (rc) goto out; - memcpy(desc.info, csbcpb->cpb.aes_gcm.out_cnt, AES_BLOCK_SIZE); + memcpy(rctx->iv, csbcpb->cpb.aes_gcm.out_cnt, AES_BLOCK_SIZE); memcpy(csbcpb->cpb.aes_gcm.in_pat_or_aad, csbcpb->cpb.aes_gcm.out_pat_or_mac, AES_BLOCK_SIZE); memcpy(csbcpb->cpb.aes_gcm.in_s0, @@ -471,11 +467,6 @@ static int gcm4106_aes_nx_decrypt(struct aead_request *req) return gcm_aes_nx_crypt(req, 0, req->assoclen - 8); } -/* tell the block cipher walk routines that this is a stream cipher by - * setting cra_blocksize to 1. Even using blkcipher_walk_virt_block - * during encrypt/decrypt doesn't solve this problem, because it calls - * blkcipher_walk_done under the covers, which doesn't use walk->blocksize, - * but instead uses this tfm->blocksize. */ struct aead_alg nx_gcm_aes_alg = { .base = { .cra_name = "gcm(aes)", |