return -EINVAL;
}
- crypto_aead_crt(tfm)->authsize = authsize;
-
return 0;
}
return -EINVAL;
}
- crypto_aead_crt(tfm)->authsize = authsize;
-
return 0;
}
struct nx_crypto_ctx *nx_ctx,
unsigned int authsize,
unsigned int nbytes,
+ unsigned int assoclen,
u8 *out)
{
struct nx_sg *nx_insg = nx_ctx->in_sg;
* greater than 2^32.
*/
- if (!req->assoclen) {
+ if (!assoclen) {
b0 = nx_ctx->csbcpb->cpb.aes_ccm.in_pat_or_b0;
- } else if (req->assoclen <= 14) {
+ } else if (assoclen <= 14) {
/* if associated data is 14 bytes or less, we do 1 GCM
* operation on 2 AES blocks, B0 (stored in the csbcpb) and B1,
* which is fed in through the source buffers here */
b0 = nx_ctx->csbcpb->cpb.aes_ccm.in_pat_or_b0;
b1 = nx_ctx->priv.ccm.iauth_tag;
- iauth_len = req->assoclen;
- } else if (req->assoclen <= 65280) {
+ iauth_len = assoclen;
+ } else if (assoclen <= 65280) {
/* if associated data is less than (2^16 - 2^8), we construct
* B1 differently and feed in the associated data to a CCA
* operation */
}
/* generate B0 */
- rc = generate_b0(iv, req->assoclen, authsize, nbytes, b0);
+ rc = generate_b0(iv, assoclen, authsize, nbytes, b0);
if (rc)
return rc;
*/
if (b1) {
memset(b1, 0, 16);
- if (req->assoclen <= 65280) {
- *(u16 *)b1 = (u16)req->assoclen;
- scatterwalk_map_and_copy(b1 + 2, req->assoc, 0,
+ if (assoclen <= 65280) {
+ *(u16 *)b1 = assoclen;
+ scatterwalk_map_and_copy(b1 + 2, req->src, 0,
iauth_len, SCATTERWALK_FROM_SG);
} else {
*(u16 *)b1 = (u16)(0xfffe);
- *(u32 *)&b1[2] = (u32)req->assoclen;
- scatterwalk_map_and_copy(b1 + 6, req->assoc, 0,
+ *(u32 *)&b1[2] = assoclen;
+ scatterwalk_map_and_copy(b1 + 6, req->src, 0,
iauth_len, SCATTERWALK_FROM_SG);
}
}
/* now copy any remaining AAD to scatterlist and call nx... */
- if (!req->assoclen) {
+ if (!assoclen) {
return rc;
- } else if (req->assoclen <= 14) {
+ } else if (assoclen <= 14) {
unsigned int len = 16;
nx_insg = nx_build_sg_list(nx_insg, b1, &len, nx_ctx->ap->sglen);
return rc;
atomic_inc(&(nx_ctx->stats->aes_ops));
- atomic64_add(req->assoclen, &(nx_ctx->stats->aes_bytes));
+ atomic64_add(assoclen, &nx_ctx->stats->aes_bytes);
} else {
unsigned int processed = 0, to_process;
nx_ctx->ap->databytelen/NX_PAGE_SIZE);
do {
- to_process = min_t(u32, req->assoclen - processed,
+ to_process = min_t(u32, assoclen - processed,
nx_ctx->ap->databytelen);
nx_insg = nx_walk_and_build(nx_ctx->in_sg,
nx_ctx->ap->sglen,
- req->assoc, processed,
+ req->src, processed,
&to_process);
- if ((to_process + processed) < req->assoclen) {
+ if ((to_process + processed) < assoclen) {
NX_CPB_FDM(nx_ctx->csbcpb_aead) |=
NX_FDM_INTERMEDIATE;
} else {
NX_CPB_FDM(nx_ctx->csbcpb_aead) |= NX_FDM_CONTINUATION;
atomic_inc(&(nx_ctx->stats->aes_ops));
- atomic64_add(req->assoclen,
- &(nx_ctx->stats->aes_bytes));
+ atomic64_add(assoclen, &nx_ctx->stats->aes_bytes);
processed += to_process;
- } while (processed < req->assoclen);
+ } while (processed < assoclen);
result = nx_ctx->csbcpb_aead->cpb.aes_cca.out_pat_or_b0;
}
}
static int ccm_nx_decrypt(struct aead_request *req,
- struct blkcipher_desc *desc)
+ struct blkcipher_desc *desc,
+ unsigned int assoclen)
{
struct nx_crypto_ctx *nx_ctx = crypto_tfm_ctx(req->base.tfm);
struct nx_csbcpb *csbcpb = nx_ctx->csbcpb;
/* copy out the auth tag to compare with later */
scatterwalk_map_and_copy(priv->oauth_tag,
- req->src, nbytes, authsize,
+ req->src, nbytes + req->assoclen, authsize,
SCATTERWALK_FROM_SG);
- rc = generate_pat(desc->info, req, nx_ctx, authsize, nbytes,
+ rc = generate_pat(desc->info, req, nx_ctx, authsize, nbytes, assoclen,
csbcpb->cpb.aes_ccm.in_pat_or_b0);
if (rc)
goto out;
NX_CPB_FDM(nx_ctx->csbcpb) &= ~NX_FDM_ENDE_ENCRYPT;
rc = nx_build_sg_lists(nx_ctx, desc, req->dst, req->src,
- &to_process, processed,
- csbcpb->cpb.aes_ccm.iv_or_ctr);
+ &to_process, processed + req->assoclen,
+ csbcpb->cpb.aes_ccm.iv_or_ctr);
if (rc)
goto out;
processed += to_process;
} while (processed < nbytes);
- rc = memcmp(csbcpb->cpb.aes_ccm.out_pat_or_mac, priv->oauth_tag,
+ rc = crypto_memneq(csbcpb->cpb.aes_ccm.out_pat_or_mac, priv->oauth_tag,
authsize) ? -EBADMSG : 0;
out:
spin_unlock_irqrestore(&nx_ctx->lock, irq_flags);
}
static int ccm_nx_encrypt(struct aead_request *req,
- struct blkcipher_desc *desc)
+ struct blkcipher_desc *desc,
+ unsigned int assoclen)
{
struct nx_crypto_ctx *nx_ctx = crypto_tfm_ctx(req->base.tfm);
struct nx_csbcpb *csbcpb = nx_ctx->csbcpb;
spin_lock_irqsave(&nx_ctx->lock, irq_flags);
- rc = generate_pat(desc->info, req, nx_ctx, authsize, nbytes,
+ rc = generate_pat(desc->info, req, nx_ctx, authsize, nbytes, assoclen,
csbcpb->cpb.aes_ccm.in_pat_or_b0);
if (rc)
goto out;
NX_CPB_FDM(csbcpb) |= NX_FDM_ENDE_ENCRYPT;
rc = nx_build_sg_lists(nx_ctx, desc, req->dst, req->src,
- &to_process, processed,
+ &to_process, processed + req->assoclen,
csbcpb->cpb.aes_ccm.iv_or_ctr);
if (rc)
goto out;
/* copy out the auth tag */
scatterwalk_map_and_copy(csbcpb->cpb.aes_ccm.out_pat_or_mac,
- req->dst, nbytes, authsize,
+ req->dst, nbytes + req->assoclen, authsize,
SCATTERWALK_TO_SG);
out:
memcpy(iv + 4, req->iv, 8);
desc.info = iv;
- desc.tfm = (struct crypto_blkcipher *)req->base.tfm;
- return ccm_nx_encrypt(req, &desc);
+ return ccm_nx_encrypt(req, &desc, req->assoclen - 8);
}
static int ccm_aes_nx_encrypt(struct aead_request *req)
int rc;
desc.info = req->iv;
- desc.tfm = (struct crypto_blkcipher *)req->base.tfm;
rc = crypto_ccm_check_iv(desc.info);
if (rc)
return rc;
- return ccm_nx_encrypt(req, &desc);
+ return ccm_nx_encrypt(req, &desc, req->assoclen);
}
static int ccm4309_aes_nx_decrypt(struct aead_request *req)
memcpy(iv + 4, req->iv, 8);
desc.info = iv;
- desc.tfm = (struct crypto_blkcipher *)req->base.tfm;
- return ccm_nx_decrypt(req, &desc);
+ return ccm_nx_decrypt(req, &desc, req->assoclen - 8);
}
static int ccm_aes_nx_decrypt(struct aead_request *req)
int rc;
desc.info = req->iv;
- desc.tfm = (struct crypto_blkcipher *)req->base.tfm;
rc = crypto_ccm_check_iv(desc.info);
if (rc)
return rc;
- return ccm_nx_decrypt(req, &desc);
+ return ccm_nx_decrypt(req, &desc, req->assoclen);
}
/* tell the block cipher walk routines that this is a stream cipher by
* 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 crypto_alg nx_ccm_aes_alg = {
- .cra_name = "ccm(aes)",
- .cra_driver_name = "ccm-aes-nx",
- .cra_priority = 300,
- .cra_flags = CRYPTO_ALG_TYPE_AEAD |
- CRYPTO_ALG_NEED_FALLBACK,
- .cra_blocksize = 1,
- .cra_ctxsize = sizeof(struct nx_crypto_ctx),
- .cra_type = &crypto_aead_type,
- .cra_module = THIS_MODULE,
- .cra_init = nx_crypto_ctx_aes_ccm_init,
- .cra_exit = nx_crypto_ctx_exit,
- .cra_aead = {
- .ivsize = AES_BLOCK_SIZE,
- .maxauthsize = AES_BLOCK_SIZE,
- .setkey = ccm_aes_nx_set_key,
- .setauthsize = ccm_aes_nx_setauthsize,
- .encrypt = ccm_aes_nx_encrypt,
- .decrypt = ccm_aes_nx_decrypt,
- }
+struct aead_alg nx_ccm_aes_alg = {
+ .base = {
+ .cra_name = "ccm(aes)",
+ .cra_driver_name = "ccm-aes-nx",
+ .cra_priority = 300,
+ .cra_flags = CRYPTO_ALG_NEED_FALLBACK,
+ .cra_blocksize = 1,
+ .cra_ctxsize = sizeof(struct nx_crypto_ctx),
+ .cra_module = THIS_MODULE,
+ },
+ .init = nx_crypto_ctx_aes_ccm_init,
+ .exit = nx_crypto_ctx_aead_exit,
+ .ivsize = AES_BLOCK_SIZE,
+ .maxauthsize = AES_BLOCK_SIZE,
+ .setkey = ccm_aes_nx_set_key,
+ .setauthsize = ccm_aes_nx_setauthsize,
+ .encrypt = ccm_aes_nx_encrypt,
+ .decrypt = ccm_aes_nx_decrypt,
};
-struct crypto_alg nx_ccm4309_aes_alg = {
- .cra_name = "rfc4309(ccm(aes))",
- .cra_driver_name = "rfc4309-ccm-aes-nx",
- .cra_priority = 300,
- .cra_flags = CRYPTO_ALG_TYPE_AEAD |
- CRYPTO_ALG_NEED_FALLBACK,
- .cra_blocksize = 1,
- .cra_ctxsize = sizeof(struct nx_crypto_ctx),
- .cra_type = &crypto_nivaead_type,
- .cra_module = THIS_MODULE,
- .cra_init = nx_crypto_ctx_aes_ccm_init,
- .cra_exit = nx_crypto_ctx_exit,
- .cra_aead = {
- .ivsize = 8,
- .maxauthsize = AES_BLOCK_SIZE,
- .setkey = ccm4309_aes_nx_set_key,
- .setauthsize = ccm4309_aes_nx_setauthsize,
- .encrypt = ccm4309_aes_nx_encrypt,
- .decrypt = ccm4309_aes_nx_decrypt,
- .geniv = "seqiv",
- }
+struct aead_alg nx_ccm4309_aes_alg = {
+ .base = {
+ .cra_name = "rfc4309(ccm(aes))",
+ .cra_driver_name = "rfc4309-ccm-aes-nx",
+ .cra_priority = 300,
+ .cra_flags = CRYPTO_ALG_NEED_FALLBACK,
+ .cra_blocksize = 1,
+ .cra_ctxsize = sizeof(struct nx_crypto_ctx),
+ .cra_module = THIS_MODULE,
+ },
+ .init = nx_crypto_ctx_aes_ccm_init,
+ .exit = nx_crypto_ctx_aead_exit,
+ .ivsize = 8,
+ .maxauthsize = AES_BLOCK_SIZE,
+ .setkey = ccm4309_aes_nx_set_key,
+ .setauthsize = ccm4309_aes_nx_setauthsize,
+ .encrypt = ccm4309_aes_nx_encrypt,
+ .decrypt = ccm4309_aes_nx_decrypt,
};
Code Review / kvmfornfv.git / blobdiff