lkml.org 
[lkml]   [2020]   [Aug]   [7]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
    Patch in this message
    /
    From
    Subject[PATCH 13/22] crypto: cavium/cpt - add check for xts input length equal to zero
    Date
    From: Andrei Botila <andrei.botila@nxp.com>

    Standardize the way input lengths equal to 0 are handled in all skcipher
    algorithms. All the algorithms return 0 for input lengths equal to zero.

    Cc: George Cherian <gcherian@marvell.com>
    Signed-off-by: Andrei Botila <andrei.botila@nxp.com>
    ---
    drivers/crypto/cavium/cpt/cptvf_algs.c | 4 ++++
    1 file changed, 4 insertions(+)

    diff --git a/drivers/crypto/cavium/cpt/cptvf_algs.c b/drivers/crypto/cavium/cpt/cptvf_algs.c
    index 5af0dc2a8909..edc18c8dd571 100644
    --- a/drivers/crypto/cavium/cpt/cptvf_algs.c
    +++ b/drivers/crypto/cavium/cpt/cptvf_algs.c
    @@ -193,6 +193,7 @@ static inline void create_output_list(struct skcipher_request *req,
    static inline int cvm_enc_dec(struct skcipher_request *req, u32 enc)
    {
    struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
    + struct cvm_enc_ctx *ctx = crypto_skcipher_ctx(tfm);
    struct cvm_req_ctx *rctx = skcipher_request_ctx(req);
    u32 enc_iv_len = crypto_skcipher_ivsize(tfm);
    struct fc_context *fctx = &rctx->fctx;
    @@ -200,6 +201,9 @@ static inline int cvm_enc_dec(struct skcipher_request *req, u32 enc)
    void *cdev = NULL;
    int status;

    + if (!req->cryptlen && ctx->cipher_type == AES_XTS)
    + return 0;
    +
    memset(req_info, 0, sizeof(struct cpt_request_info));
    req_info->may_sleep = (req->base.flags & CRYPTO_TFM_REQ_MAY_SLEEP) != 0;
    memset(fctx, 0, sizeof(struct fc_context));
    --
    2.17.1
    \
     
     \ /
      Last update: 2020-08-07 18:23    [W:4.128 / U:0.036 seconds]
    ©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site