| Message ID | 20190218160046.6387-1-k.konieczny@partner.samsung.com (mailing list archive) |
|---|---|
| State | Not Applicable |
| Headers | show |
| Series | crypto: s5p: update iv after AES op end | expand |
On Mon, 18 Feb 2019 at 17:01, Kamil Konieczny <k.konieczny@partner.samsung.com> wrote: > > Fix bug "s5p-sss crypto driver doesn't set next AES-CBC IV". This should > also fix AES-CTR mode. Tested on Odroid U3 with Eric Biggers branch > "iv-out-testing". > > Signed-off-by: Kamil Konieczny <k.konieczny@partner.samsung.com> > --- > drivers/crypto/s5p-sss.c | 8 ++++++++ > 1 file changed, 8 insertions(+) > > diff --git a/drivers/crypto/s5p-sss.c b/drivers/crypto/s5p-sss.c > index 0064be0e3941..3ea058addad3 100644 > --- a/drivers/crypto/s5p-sss.c > +++ b/drivers/crypto/s5p-sss.c > @@ -463,6 +463,9 @@ static void s5p_sg_copy_buf(void *buf, struct scatterlist *sg, > > static void s5p_sg_done(struct s5p_aes_dev *dev) > { > + struct ablkcipher_request *req = dev->req; > + struct s5p_aes_reqctx *reqctx = ablkcipher_request_ctx(req); > + > if (dev->sg_dst_cpy) { > dev_dbg(dev->dev, > "Copying %d bytes of output data back to original place\n", > @@ -472,6 +475,11 @@ static void s5p_sg_done(struct s5p_aes_dev *dev) > } > s5p_free_sg_cpy(dev, &dev->sg_src_cpy); > s5p_free_sg_cpy(dev, &dev->sg_dst_cpy); > + if (reqctx->mode & FLAGS_AES_CBC) > + memcpy_fromio(req->info, dev->aes_ioaddr + SSS_REG_AES_IV_DATA(0), 0x10); > + 0x10 -> AES_BLOCK_SIZE > + if (reqctx->mode & FLAGS_AES_CTR) if -> else if Beside that looks good. Best regards, Krzysztof
diff --git a/drivers/crypto/s5p-sss.c b/drivers/crypto/s5p-sss.c index 0064be0e3941..3ea058addad3 100644 --- a/drivers/crypto/s5p-sss.c +++ b/drivers/crypto/s5p-sss.c @@ -463,6 +463,9 @@ static void s5p_sg_copy_buf(void *buf, struct scatterlist *sg, static void s5p_sg_done(struct s5p_aes_dev *dev) { + struct ablkcipher_request *req = dev->req; + struct s5p_aes_reqctx *reqctx = ablkcipher_request_ctx(req); + if (dev->sg_dst_cpy) { dev_dbg(dev->dev, "Copying %d bytes of output data back to original place\n", @@ -472,6 +475,11 @@ static void s5p_sg_done(struct s5p_aes_dev *dev) } s5p_free_sg_cpy(dev, &dev->sg_src_cpy); s5p_free_sg_cpy(dev, &dev->sg_dst_cpy); + if (reqctx->mode & FLAGS_AES_CBC) + memcpy_fromio(req->info, dev->aes_ioaddr + SSS_REG_AES_IV_DATA(0), 0x10); + + if (reqctx->mode & FLAGS_AES_CTR) + memcpy_fromio(req->info, dev->aes_ioaddr + SSS_REG_AES_CNT_DATA(0), 0x10); } /* Calls the completion. Cannot be called with dev->lock hold. */
Fix bug "s5p-sss crypto driver doesn't set next AES-CBC IV". This should also fix AES-CTR mode. Tested on Odroid U3 with Eric Biggers branch "iv-out-testing". Signed-off-by: Kamil Konieczny <k.konieczny@partner.samsung.com> --- drivers/crypto/s5p-sss.c | 8 ++++++++ 1 file changed, 8 insertions(+)