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Subject[PATCH net-next 2/2] xfrm: Add support for SM4 symmetric cipher algorithm
Date
This patch adds SM4 encryption algorithm entry to ealg_list.

Signed-off-by: Xu Jia <xujia39@huawei.com>
---
include/uapi/linux/pfkeyv2.h | 1 +
net/xfrm/xfrm_algo.c | 21 +++++++++++++++++++++
2 files changed, 22 insertions(+)

diff --git a/include/uapi/linux/pfkeyv2.h b/include/uapi/linux/pfkeyv2.h
index 798ba9f..8abae1f 100644
--- a/include/uapi/linux/pfkeyv2.h
+++ b/include/uapi/linux/pfkeyv2.h
@@ -330,6 +330,7 @@ struct sadb_x_filter {
#define SADB_X_EALG_AES_GCM_ICV16 20
#define SADB_X_EALG_CAMELLIACBC 22
#define SADB_X_EALG_NULL_AES_GMAC 23
+#define SADB_X_EALG_SM4CBC 24
#define SADB_EALG_MAX 253 /* last EALG */
/* private allocations should use 249-255 (RFC2407) */
#define SADB_X_EALG_SERPENTCBC 252 /* draft-ietf-ipsec-ciph-aes-cbc-00 */
diff --git a/net/xfrm/xfrm_algo.c b/net/xfrm/xfrm_algo.c
index 00b5444..094734f 100644
--- a/net/xfrm/xfrm_algo.c
+++ b/net/xfrm/xfrm_algo.c
@@ -572,6 +572,27 @@
.sadb_alg_maxbits = 288
}
},
+{
+ .name = "cbc(sm4)",
+ .compat = "sm4",
+
+ .uinfo = {
+ .encr = {
+ .geniv = "echainiv",
+ .blockbits = 128,
+ .defkeybits = 128,
+ }
+ },
+
+ .pfkey_supported = 1,
+
+ .desc = {
+ .sadb_alg_id = SADB_X_EALG_SM4CBC,
+ .sadb_alg_ivlen = 16,
+ .sadb_alg_minbits = 128,
+ .sadb_alg_maxbits = 256
+ }
+},
};

static struct xfrm_algo_desc calg_list[] = {
--
1.8.3.1
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