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path: root/drivers/crypto/nx/nx-aes-gcm.c
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Diffstat (limited to 'drivers/crypto/nx/nx-aes-gcm.c')
-rw-r--r--drivers/crypto/nx/nx-aes-gcm.c110
1 files changed, 47 insertions, 63 deletions
diff --git a/drivers/crypto/nx/nx-aes-gcm.c b/drivers/crypto/nx/nx-aes-gcm.c
index c6ebeb644..92c993f08 100644
--- a/drivers/crypto/nx/nx-aes-gcm.c
+++ b/drivers/crypto/nx/nx-aes-gcm.c
@@ -93,17 +93,6 @@ out:
return rc;
}
-static int gcm_aes_nx_setauthsize(struct crypto_aead *tfm,
- unsigned int authsize)
-{
- if (authsize > crypto_aead_alg(tfm)->maxauthsize)
- return -EINVAL;
-
- crypto_aead_crt(tfm)->authsize = authsize;
-
- return 0;
-}
-
static int gcm4106_aes_nx_setauthsize(struct crypto_aead *tfm,
unsigned int authsize)
{
@@ -116,8 +105,6 @@ static int gcm4106_aes_nx_setauthsize(struct crypto_aead *tfm,
return -EINVAL;
}
- crypto_aead_crt(tfm)->authsize = authsize;
-
return 0;
}
@@ -134,7 +121,7 @@ static int nx_gca(struct nx_crypto_ctx *nx_ctx,
unsigned int max_sg_len;
if (nbytes <= AES_BLOCK_SIZE) {
- scatterwalk_start(&walk, req->assoc);
+ scatterwalk_start(&walk, req->src);
scatterwalk_copychunks(out, &walk, nbytes, SCATTERWALK_FROM_SG);
scatterwalk_done(&walk, SCATTERWALK_FROM_SG, 0);
return 0;
@@ -159,7 +146,7 @@ static int nx_gca(struct nx_crypto_ctx *nx_ctx,
NX_PAGE_SIZE * (max_sg_len - 1));
nx_sg = nx_walk_and_build(nx_ctx->in_sg, max_sg_len,
- req->assoc, processed, &to_process);
+ req->src, processed, &to_process);
if ((to_process + processed) < nbytes)
NX_CPB_FDM(csbcpb_aead) |= NX_FDM_INTERMEDIATE;
@@ -225,7 +212,7 @@ static int gmac(struct aead_request *req, struct blkcipher_desc *desc)
NX_PAGE_SIZE * (max_sg_len - 1));
nx_sg = nx_walk_and_build(nx_ctx->in_sg, max_sg_len,
- req->assoc, processed, &to_process);
+ req->src, processed, &to_process);
if ((to_process + processed) < nbytes)
NX_CPB_FDM(csbcpb) |= NX_FDM_INTERMEDIATE;
@@ -378,7 +365,8 @@ static int gcm_aes_nx_crypt(struct aead_request *req, int enc)
csbcpb->cpb.aes_gcm.bit_length_data = nbytes * 8;
desc.tfm = (struct crypto_blkcipher *) req->base.tfm;
rc = nx_build_sg_lists(nx_ctx, &desc, req->dst,
- req->src, &to_process, processed,
+ req->src, &to_process,
+ processed + req->assoclen,
csbcpb->cpb.aes_gcm.iv_or_cnt);
if (rc)
@@ -413,17 +401,19 @@ static int gcm_aes_nx_crypt(struct aead_request *req, int enc)
mac:
if (enc) {
/* copy out the auth tag */
- scatterwalk_map_and_copy(csbcpb->cpb.aes_gcm.out_pat_or_mac,
- req->dst, nbytes,
- crypto_aead_authsize(crypto_aead_reqtfm(req)),
- SCATTERWALK_TO_SG);
+ scatterwalk_map_and_copy(
+ csbcpb->cpb.aes_gcm.out_pat_or_mac,
+ req->dst, req->assoclen + nbytes,
+ crypto_aead_authsize(crypto_aead_reqtfm(req)),
+ SCATTERWALK_TO_SG);
} else {
u8 *itag = nx_ctx->priv.gcm.iauth_tag;
u8 *otag = csbcpb->cpb.aes_gcm.out_pat_or_mac;
- scatterwalk_map_and_copy(itag, req->src, nbytes,
- crypto_aead_authsize(crypto_aead_reqtfm(req)),
- SCATTERWALK_FROM_SG);
+ scatterwalk_map_and_copy(
+ itag, req->src, req->assoclen + nbytes,
+ crypto_aead_authsize(crypto_aead_reqtfm(req)),
+ SCATTERWALK_FROM_SG);
rc = memcmp(itag, otag,
crypto_aead_authsize(crypto_aead_reqtfm(req))) ?
-EBADMSG : 0;
@@ -484,45 +474,39 @@ static int gcm4106_aes_nx_decrypt(struct aead_request *req)
* 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_gcm_aes_alg = {
- .cra_name = "gcm(aes)",
- .cra_driver_name = "gcm-aes-nx",
- .cra_priority = 300,
- .cra_flags = CRYPTO_ALG_TYPE_AEAD,
- .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_gcm_init,
- .cra_exit = nx_crypto_ctx_exit,
- .cra_aead = {
- .ivsize = AES_BLOCK_SIZE,
- .maxauthsize = AES_BLOCK_SIZE,
- .setkey = gcm_aes_nx_set_key,
- .setauthsize = gcm_aes_nx_setauthsize,
- .encrypt = gcm_aes_nx_encrypt,
- .decrypt = gcm_aes_nx_decrypt,
- }
+struct aead_alg nx_gcm_aes_alg = {
+ .base = {
+ .cra_name = "gcm(aes)",
+ .cra_driver_name = "gcm-aes-nx",
+ .cra_priority = 300,
+ .cra_blocksize = 1,
+ .cra_ctxsize = sizeof(struct nx_crypto_ctx),
+ .cra_module = THIS_MODULE,
+ },
+ .init = nx_crypto_ctx_aes_gcm_init,
+ .exit = nx_crypto_ctx_aead_exit,
+ .ivsize = 12,
+ .maxauthsize = AES_BLOCK_SIZE,
+ .setkey = gcm_aes_nx_set_key,
+ .encrypt = gcm_aes_nx_encrypt,
+ .decrypt = gcm_aes_nx_decrypt,
};
-struct crypto_alg nx_gcm4106_aes_alg = {
- .cra_name = "rfc4106(gcm(aes))",
- .cra_driver_name = "rfc4106-gcm-aes-nx",
- .cra_priority = 300,
- .cra_flags = CRYPTO_ALG_TYPE_AEAD,
- .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_gcm_init,
- .cra_exit = nx_crypto_ctx_exit,
- .cra_aead = {
- .ivsize = 8,
- .maxauthsize = AES_BLOCK_SIZE,
- .geniv = "seqiv",
- .setkey = gcm4106_aes_nx_set_key,
- .setauthsize = gcm4106_aes_nx_setauthsize,
- .encrypt = gcm4106_aes_nx_encrypt,
- .decrypt = gcm4106_aes_nx_decrypt,
- }
+struct aead_alg nx_gcm4106_aes_alg = {
+ .base = {
+ .cra_name = "rfc4106(gcm(aes))",
+ .cra_driver_name = "rfc4106-gcm-aes-nx",
+ .cra_priority = 300,
+ .cra_blocksize = 1,
+ .cra_ctxsize = sizeof(struct nx_crypto_ctx),
+ .cra_module = THIS_MODULE,
+ },
+ .init = nx_crypto_ctx_aes_gcm_init,
+ .exit = nx_crypto_ctx_aead_exit,
+ .ivsize = 8,
+ .maxauthsize = AES_BLOCK_SIZE,
+ .setkey = gcm4106_aes_nx_set_key,
+ .setauthsize = gcm4106_aes_nx_setauthsize,
+ .encrypt = gcm4106_aes_nx_encrypt,
+ .decrypt = gcm4106_aes_nx_decrypt,
};
generated by cgit v1.2.3-54-g00ecf (git 2.45.2) at 2024-11-17 06:48:40 +0000