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[Qemu-devel] [PATCH] cryptodev: setiv only when really need
From: |
Longpeng(Mike) |
Subject: |
[Qemu-devel] [PATCH] cryptodev: setiv only when really need |
Date: |
Sat, 14 Jan 2017 14:28:21 +0800 |
ECB mode cipher doesn't need IV, if we setiv for it then qemu
crypto API would report "Expected IV size 0 not **", so we should
setiv only when the cipher algos really need.
Signed-off-by: Longpeng(Mike) <address@hidden>
---
backends/cryptodev-builtin.c | 10 ++++++----
1 file changed, 6 insertions(+), 4 deletions(-)
diff --git a/backends/cryptodev-builtin.c b/backends/cryptodev-builtin.c
index 82a068e..b24a299 100644
--- a/backends/cryptodev-builtin.c
+++ b/backends/cryptodev-builtin.c
@@ -320,10 +320,12 @@ static int cryptodev_builtin_sym_operation(
sess = builtin->sessions[op_info->session_id];
- ret = qcrypto_cipher_setiv(sess->cipher, op_info->iv,
- op_info->iv_len, errp);
- if (ret < 0) {
- return -VIRTIO_CRYPTO_ERR;
+ if (op_info->iv_len > 0) {
+ ret = qcrypto_cipher_setiv(sess->cipher, op_info->iv,
+ op_info->iv_len, errp);
+ if (ret < 0) {
+ return -VIRTIO_CRYPTO_ERR;
+ }
}
if (sess->direction == VIRTIO_CRYPTO_OP_ENCRYPT) {
--
1.8.3.1
- [Qemu-devel] [PATCH] cryptodev: setiv only when really need,
Longpeng(Mike) <=