diff options
Diffstat (limited to 'drivers/crypto/amcc/crypto4xx_core.c')
| -rw-r--r-- | drivers/crypto/amcc/crypto4xx_core.c | 54 |
1 files changed, 27 insertions, 27 deletions
diff --git a/drivers/crypto/amcc/crypto4xx_core.c b/drivers/crypto/amcc/crypto4xx_core.c index c44954e274bc..33256b4a302e 100644 --- a/drivers/crypto/amcc/crypto4xx_core.c +++ b/drivers/crypto/amcc/crypto4xx_core.c @@ -570,15 +570,14 @@ static void crypto4xx_aead_done(struct crypto4xx_device *dev, struct pd_uinfo *pd_uinfo, struct ce_pd *pd) { - struct aead_request *aead_req; - struct crypto4xx_ctx *ctx; + struct aead_request *aead_req = container_of(pd_uinfo->async_req, + struct aead_request, base); struct scatterlist *dst = pd_uinfo->dest_va; + size_t cp_len = crypto_aead_authsize( + crypto_aead_reqtfm(aead_req)); + u32 icv[cp_len]; int err = 0; - aead_req = container_of(pd_uinfo->async_req, struct aead_request, - base); - ctx = crypto_tfm_ctx(aead_req->base.tfm); - if (pd_uinfo->using_sd) { crypto4xx_copy_pkt_to_dst(dev, pd, pd_uinfo, pd->pd_ctl_len.bf.pkt_len, @@ -590,38 +589,39 @@ static void crypto4xx_aead_done(struct crypto4xx_device *dev, if (pd_uinfo->sa_va->sa_command_0.bf.dir == DIR_OUTBOUND) { /* append icv at the end */ - size_t cp_len = crypto_aead_authsize( - crypto_aead_reqtfm(aead_req)); - u32 icv[cp_len]; - crypto4xx_memcpy_from_le32(icv, pd_uinfo->sr_va->save_digest, cp_len); scatterwalk_map_and_copy(icv, dst, aead_req->cryptlen, cp_len, 1); + } else { + /* check icv at the end */ + scatterwalk_map_and_copy(icv, aead_req->src, + aead_req->assoclen + aead_req->cryptlen - + cp_len, cp_len, 0); + + crypto4xx_memcpy_from_le32(icv, icv, cp_len); + + if (crypto_memneq(icv, pd_uinfo->sr_va->save_digest, cp_len)) + err = -EBADMSG; } crypto4xx_ret_sg_desc(dev, pd_uinfo); if (pd->pd_ctl.bf.status & 0xff) { - if (pd->pd_ctl.bf.status & 0x1) { - /* authentication error */ - err = -EBADMSG; - } else { - if (!__ratelimit(&dev->aead_ratelimit)) { - if (pd->pd_ctl.bf.status & 2) - pr_err("pad fail error\n"); - if (pd->pd_ctl.bf.status & 4) - pr_err("seqnum fail\n"); - if (pd->pd_ctl.bf.status & 8) - pr_err("error _notify\n"); - pr_err("aead return err status = 0x%02x\n", - pd->pd_ctl.bf.status & 0xff); - pr_err("pd pad_ctl = 0x%08x\n", - pd->pd_ctl.bf.pd_pad_ctl); - } - err = -EINVAL; + if (!__ratelimit(&dev->aead_ratelimit)) { + if (pd->pd_ctl.bf.status & 2) + pr_err("pad fail error\n"); + if (pd->pd_ctl.bf.status & 4) + pr_err("seqnum fail\n"); + if (pd->pd_ctl.bf.status & 8) + pr_err("error _notify\n"); + pr_err("aead return err status = 0x%02x\n", + pd->pd_ctl.bf.status & 0xff); + pr_err("pd pad_ctl = 0x%08x\n", + pd->pd_ctl.bf.pd_pad_ctl); } + err = -EINVAL; } if (pd_uinfo->state & PD_ENTRY_BUSY) |