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From: wenxu@ucloud.cn
To: pablo@netfilter.org, fw@strlen.de
Cc: netfilter-devel@vger.kernel.org
Subject: [PATCH nf-next v3 6/9] netfilter: nft_tunnel: support tunnel meta match offload
Date: Thu,  1 Aug 2019 22:01:23 +0800
Message-ID: <1564668086-16260-7-git-send-email-wenxu@ucloud.cn> (raw)
In-Reply-To: <1564668086-16260-1-git-send-email-wenxu@ucloud.cn>

From: wenxu <wenxu@ucloud.cn>

Add tunnel meta match offload. Currently support for NFT_TUNNEL_ID
NFT_TUNNEL_SRC_IP and NFT_TUNNEL_DST_IP

Signed-off-by: wenxu <wenxu@ucloud.cn>
---
v3: set data on dest

 include/net/netfilter/nf_tables_offload.h |  2 ++
 net/netfilter/nft_tunnel.c                | 33 +++++++++++++++++++++++++++++++
 2 files changed, 35 insertions(+)

diff --git a/include/net/netfilter/nf_tables_offload.h b/include/net/netfilter/nf_tables_offload.h
index 275d014..df76981 100644
--- a/include/net/netfilter/nf_tables_offload.h
+++ b/include/net/netfilter/nf_tables_offload.h
@@ -44,6 +44,8 @@ struct nft_flow_key {
 	struct flow_dissector_key_ip			ip;
 	struct flow_dissector_key_vlan			vlan;
 	struct flow_dissector_key_eth_addrs		eth_addrs;
+	struct flow_dissector_key_keyid         enc_key_id;
+	struct flow_dissector_key_ipv4_addrs	enc_ipv4;
 } __aligned(BITS_PER_LONG / 8); /* Ensure that we can do comparisons as longs. */
 
 struct nft_flow_match {
diff --git a/net/netfilter/nft_tunnel.c b/net/netfilter/nft_tunnel.c
index e218163..f0190bc 100644
--- a/net/netfilter/nft_tunnel.c
+++ b/net/netfilter/nft_tunnel.c
@@ -11,6 +11,7 @@
 #include <net/ip_tunnels.h>
 #include <net/vxlan.h>
 #include <net/erspan.h>
+#include <net/netfilter/nf_tables_offload.h>
 
 struct nft_tunnel {
 	enum nft_tunnel_keys	key:8;
@@ -149,6 +150,37 @@ static int nft_tunnel_get_dump(struct sk_buff *skb,
 	return -1;
 }
 
+static int nft_tunnel_get_offload(struct nft_offload_ctx *ctx,
+				  struct nft_flow_rule *flow,
+				  const struct nft_expr *expr)
+{
+	const struct nft_tunnel *priv = nft_expr_priv(expr);
+	struct nft_offload_reg *reg = &ctx->regs[priv->dreg];
+
+	if (priv->mode == NFT_TUNNEL_MODE_TX)
+		return -EOPNOTSUPP;
+
+	switch (priv->key) {
+	case NFT_TUNNEL_ID:
+		NFT_OFFLOAD_MATCH(FLOW_DISSECTOR_KEY_ENC_KEYID, enc_key_id, keyid,
+				  sizeof(__u32), reg);
+		break;
+	case NFT_TUNNEL_SRC_IP:
+		NFT_OFFLOAD_MATCH(FLOW_DISSECTOR_KEY_ENC_IPV4_ADDRS, enc_ipv4, src,
+				  sizeof(__u32), reg);
+		break;
+	case NFT_TUNNEL_DST_IP:
+		NFT_OFFLOAD_MATCH(FLOW_DISSECTOR_KEY_ENC_IPV4_ADDRS, enc_ipv4, dst,
+				  sizeof(__u32), reg);
+		break;
+	case NFT_TUNNEL_PATH:
+	default:
+		return -EOPNOTSUPP;
+	}
+
+	return 0;
+}
+
 static struct nft_expr_type nft_tunnel_type;
 static const struct nft_expr_ops nft_tunnel_get_ops = {
 	.type		= &nft_tunnel_type,
@@ -156,6 +188,7 @@ static int nft_tunnel_get_dump(struct sk_buff *skb,
 	.eval		= nft_tunnel_get_eval,
 	.init		= nft_tunnel_get_init,
 	.dump		= nft_tunnel_get_dump,
+	.offload	= nft_tunnel_get_offload,
 };
 
 static struct nft_expr_type nft_tunnel_type __read_mostly = {
-- 
1.8.3.1


  parent reply index

Thread overview: 22+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-08-01 14:01 [PATCH nf-next v3 0/9] netfilter: nf_tables_offload: support more expr and obj offload wenxu
2019-08-01 14:01 ` [PATCH nf-next v3 1/9] netfilter: nf_flow_offload: add net in offload_ctx wenxu
2019-08-01 14:01 ` [PATCH nf-next v3 2/9] netfilter: nf_tables_offload: add offload_actions callback wenxu
2019-08-01 14:01 ` [PATCH nf-next v3 3/9] netfilter: nft_fwd_netdev: add fw_netdev action support wenxu
2019-08-07 12:15   ` kbuild test robot
2019-08-08  6:06     ` wenxu
2019-08-01 14:01 ` [PATCH nf-next v3 4/9] netfilter: nft_payload: add nft_set_payload offload support wenxu
2019-08-07 12:18   ` kbuild test robot
2019-08-08  6:07     ` wenxu
2019-08-01 14:01 ` [PATCH nf-next v3 5/9] netfilter: nft_tunnel: support NFT_TUNNEL_SRC/DST_IP match wenxu
2019-08-13 18:19   ` Pablo Neira Ayuso
2019-08-14  7:54     ` wenxu
2019-08-14  8:00       ` Pablo Neira Ayuso
2019-08-14  8:19         ` Pablo Neira Ayuso
2019-08-14  8:28           ` wenxu
2019-08-14  9:17             ` Pablo Neira Ayuso
2019-08-14  8:22         ` wenxu
2019-08-01 14:01 ` wenxu [this message]
2019-08-01 14:01 ` [PATCH nf-next v3 7/9] netfilter: nft_tunnel: add NFTA_TUNNEL_KEY_RELEASE action wenxu
2019-08-01 14:01 ` [PATCH nf-next v3 8/9] netfilter: nft_objref: add nft_objref_type offload wenxu
2019-08-01 14:01 ` [PATCH nf-next v3 9/9] netfilter: nft_tunnel: support nft_tunnel_obj offload wenxu
2019-08-13 10:58 ` [PATCH nf-next v3 0/9] netfilter: nf_tables_offload: support more expr and obj offload wenxu

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