diff options
| author | Horia Geantă <horia.geanta@nxp.com> | 2017-07-10 08:40:30 +0300 |
|---|---|---|
| committer | Herbert Xu <herbert@gondor.apana.org.au> | 2017-07-18 18:16:02 +0800 |
| commit | a68a193805224d90bedd94e9e8ac287600f07b78 (patch) | |
| tree | a9f871dd57ae87ea7583bcd2f012829315d3b1fd /drivers/crypto/caam | |
| parent | 1ed289f7b78c34565a33dbe6f8c482e71f493934 (diff) | |
crypto: caam/qi - properly set IV after {en,de}crypt
caam/qi needs a fix similar to what was done for caam/jr in
commit "crypto: caam/qi - properly set IV after {en,de}crypt",
to allow for ablkcipher/skcipher chunking/streaming.
Cc: <stable@vger.kernel.org>
Fixes: b189817cf789 ("crypto: caam/qi - add ablkcipher and authenc algorithms")
Suggested-by: David Gstir <david@sigma-star.at>
Signed-off-by: Horia Geantă <horia.geanta@nxp.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'drivers/crypto/caam')
| -rw-r--r-- | drivers/crypto/caam/caamalg_qi.c | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/drivers/crypto/caam/caamalg_qi.c b/drivers/crypto/caam/caamalg_qi.c index 058be8f094ee..fe0185ceac16 100644 --- a/drivers/crypto/caam/caamalg_qi.c +++ b/drivers/crypto/caam/caamalg_qi.c @@ -776,9 +776,9 @@ static void ablkcipher_done(struct caam_drv_req *drv_req, u32 status) struct crypto_ablkcipher *ablkcipher = crypto_ablkcipher_reqtfm(req); struct caam_ctx *caam_ctx = crypto_ablkcipher_ctx(ablkcipher); struct device *qidev = caam_ctx->qidev; -#ifdef DEBUG int ivsize = crypto_ablkcipher_ivsize(ablkcipher); +#ifdef DEBUG dev_err(qidev, "%s %d: status 0x%x\n", __func__, __LINE__, status); #endif @@ -799,6 +799,13 @@ static void ablkcipher_done(struct caam_drv_req *drv_req, u32 status) ablkcipher_unmap(qidev, edesc, req); qi_cache_free(edesc); + /* + * The crypto API expects us to set the IV (req->info) to the last + * ciphertext block. This is used e.g. by the CTS mode. + */ + scatterwalk_map_and_copy(req->info, req->dst, req->nbytes - ivsize, + ivsize, 0); + ablkcipher_request_complete(req, status); } |