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crypto: hisilicon/sec - fix the max length of AAD for the CCM mode

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Fix the maximum length of AAD for the CCM mode due to the hardware limited.

Signed-off-by: Kai Ye <yekai13@huawei.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
Kai Ye 2022-01-22 16:13:10 +08:00 committed by Herbert Xu
parent e764d81d58
commit 5e340558c5
1 changed files with 5 additions and 0 deletions
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5
drivers/crypto/hisilicon/sec2/sec_crypto.c
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@ -63,6 +63,7 @@
#define SEC_AUTH_CIPHER 0x1
#define SEC_MAX_MAC_LEN 64
#define SEC_MAX_AAD_LEN 65535
#define SEC_MAX_CCM_AAD_LEN 65279
#define SEC_TOTAL_MAC_SZ (SEC_MAX_MAC_LEN * QM_Q_DEPTH)
#define SEC_PBUF_SZ 512
@ -2220,6 +2221,10 @@ static int sec_aead_spec_check(struct sec_ctx *ctx, struct sec_req *sreq)
}
if (c_mode == SEC_CMODE_CCM) {
if (unlikely(req->assoclen > SEC_MAX_CCM_AAD_LEN)) {
dev_err_ratelimited(dev, "CCM input aad parameter is too long!\n");
return -EINVAL;
}
ret = aead_iv_demension_check(req);
if (ret) {
dev_err(dev, "aead input iv param error!\n");