mirror of
https://github.com/openwrt/openwrt.git
synced 2024-12-26 00:41:17 +00:00
55 lines
1.8 KiB
Diff
55 lines
1.8 KiB
Diff
|
From f2a33ce18232919d3831d1c61a06b6067209282d Mon Sep 17 00:00:00 2001
|
||
|
|
From: Eneas U de Queiroz <cotequeiroz@gmail.com>
|
||
|
|
Date: Fri, 22 Nov 2019 09:34:29 -0300
|
||
|
|
Subject: [PATCH] crypto: qce - initialize fallback only for AES
|
||
|
|
|
||
|
|
Adjust cra_flags to add CRYPTO_NEED_FALLBACK only for AES ciphers, where
|
||
|
|
AES-192 is not handled by the qce hardware, and don't allocate & free
|
||
|
|
the fallback skcipher for anything other than AES.
|
||
|
|
|
||
|
|
The rest of the code is unchanged, as the use of the fallback is already
|
||
|
|
restricted to AES.
|
||
|
|
|
||
|
|
Signed-off-by: Eneas U de Queiroz <cotequeiroz@gmail.com>
|
||
|
|
|
||
|
|
--- a/drivers/crypto/qce/skcipher.c
|
||
|
|
+++ b/drivers/crypto/qce/skcipher.c
|
||
|
|
@@ -246,7 +246,15 @@ static int qce_skcipher_init(struct cryp
|
||
|
|
|
||
|
|
memset(ctx, 0, sizeof(*ctx));
|
||
|
|
crypto_skcipher_set_reqsize(tfm, sizeof(struct qce_cipher_reqctx));
|
||
|
|
+ return 0;
|
||
|
|
+}
|
||
|
|
+
|
||
|
|
+static int qce_skcipher_init_fallback(struct crypto_skcipher *tfm)
|
||
|
|
+{
|
||
|
|
+ struct qce_cipher_ctx *ctx = crypto_skcipher_ctx(tfm);
|
||
|
|
+ int ret;
|
||
|
|
|
||
|
|
+ qce_skcipher_init(tfm);
|
||
|
|
ctx->fallback = crypto_alloc_skcipher(crypto_tfm_alg_name(&tfm->base),
|
||
|
|
0, CRYPTO_ALG_ASYNC |
|
||
|
|
CRYPTO_ALG_NEED_FALLBACK);
|
||
|
|
@@ -375,14 +383,18 @@ static int qce_skcipher_register_one(con
|
||
|
|
|
||
|
|
alg->base.cra_priority = 300;
|
||
|
|
alg->base.cra_flags = CRYPTO_ALG_ASYNC |
|
||
|
|
- CRYPTO_ALG_NEED_FALLBACK |
|
||
|
|
CRYPTO_ALG_KERN_DRIVER_ONLY;
|
||
|
|
alg->base.cra_ctxsize = sizeof(struct qce_cipher_ctx);
|
||
|
|
alg->base.cra_alignmask = 0;
|
||
|
|
alg->base.cra_module = THIS_MODULE;
|
||
|
|
|
||
|
|
- alg->init = qce_skcipher_init;
|
||
|
|
- alg->exit = qce_skcipher_exit;
|
||
|
|
+ if (IS_AES(def->flags)) {
|
||
|
|
+ alg->base.cra_flags |= CRYPTO_ALG_NEED_FALLBACK;
|
||
|
|
+ alg->init = qce_skcipher_init_fallback;
|
||
|
|
+ alg->exit = qce_skcipher_exit;
|
||
|
|
+ } else {
|
||
|
|
+ alg->init = qce_skcipher_init;
|
||
|
|
+ }
|
||
|
|
|
||
|
|
INIT_LIST_HEAD(&tmpl->entry);
|
||
|
|
tmpl->crypto_alg_type = CRYPTO_ALG_TYPE_SKCIPHER;
|