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From: wenxu@ucloud.cn
To: pablo@netfilter.org
Cc: netfilter-devel@vger.kernel.org
Subject: [PATCH nf-next v6 4/8] netfilter: nft_tunnel: support NFT_TUNNEL_IP6_SRC/DST match
Date: Fri, 13 Sep 2019 23:03:06 +0800
Message-ID: <1568386990-29660-5-git-send-email-wenxu@ucloud.cn> (raw)
In-Reply-To: <1568386990-29660-1-git-send-email-wenxu@ucloud.cn>

From: wenxu <wenxu@ucloud.cn>

Add new two NFT_TUNNEL_IP6_SRC/DST match in nft_tunnel

Signed-off-by: wenxu <wenxu@ucloud.cn>
---
 include/uapi/linux/netfilter/nf_tables.h |  2 ++
 net/netfilter/nft_tunnel.c               | 28 ++++++++++++++++++++++++++++
 2 files changed, 30 insertions(+)

diff --git a/include/uapi/linux/netfilter/nf_tables.h b/include/uapi/linux/netfilter/nf_tables.h
index d459f49..da9b1d1 100644
--- a/include/uapi/linux/netfilter/nf_tables.h
+++ b/include/uapi/linux/netfilter/nf_tables.h
@@ -1775,6 +1775,8 @@ enum nft_tunnel_keys {
 	NFT_TUNNEL_ID,
 	NFT_TUNNEL_IP_SRC,
 	NFT_TUNNEL_IP_DST,
+	NFT_TUNNEL_IP6_SRC,
+	NFT_TUNNEL_IP6_DST,
 	__NFT_TUNNEL_MAX
 };
 #define NFT_TUNNEL_MAX	(__NFT_TUNNEL_MAX - 1)
diff --git a/net/netfilter/nft_tunnel.c b/net/netfilter/nft_tunnel.c
index 3ca7d80..f128b28 100644
--- a/net/netfilter/nft_tunnel.c
+++ b/net/netfilter/nft_tunnel.c
@@ -96,6 +96,30 @@ static void nft_tunnel_get_eval(const struct nft_expr *expr,
 		else
 			regs->verdict.code = NFT_BREAK;
 		break;
+	case NFT_TUNNEL_IP6_SRC:
+		if (!tun_info) {
+			regs->verdict.code = NFT_BREAK;
+			return;
+		}
+		if (nft_tunnel_mode_validate(priv->mode, tun_info->mode,
+					     NFT_INET_IP6_TYPE))
+			memcpy(dest, &tun_info->key.u.ipv6.src,
+			       sizeof(struct in6_addr));
+		else
+			regs->verdict.code = NFT_BREAK;
+		break;
+	case NFT_TUNNEL_IP6_DST:
+		if (!tun_info) {
+			regs->verdict.code = NFT_BREAK;
+			return;
+		}
+		if (nft_tunnel_mode_validate(priv->mode, tun_info->mode,
+					     NFT_INET_IP6_TYPE))
+			memcpy(dest, &tun_info->key.u.ipv6.dst,
+			       sizeof(struct in6_addr));
+		else
+			regs->verdict.code = NFT_BREAK;
+		break;
 	default:
 		WARN_ON(1);
 		regs->verdict.code = NFT_BREAK;
@@ -129,6 +153,10 @@ static int nft_tunnel_get_init(const struct nft_ctx *ctx,
 	case NFT_TUNNEL_IP_DST:
 		len = sizeof(u32);
 		break;
+	case NFT_TUNNEL_IP6_SRC:
+	case NFT_TUNNEL_IP6_DST:
+		len = sizeof(struct in6_addr);
+		break;
 	default:
 		return -EOPNOTSUPP;
 	}
-- 
1.8.3.1


  parent reply index

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-09-13 15:03 [PATCH nf-next v6 0/8] netfilter: nf_tables_offload: support tunnel offload wenxu
2019-09-13 15:03 ` [PATCH nf-next v6 1/8] netfilter: nft_tunnel: add nft_tunnel_mode_validate function wenxu
2019-09-13 15:03 ` [PATCH nf-next v6 2/8] netfilter: nft_tunnel: support NFT_TUNNEL_IP_SRC/DST match wenxu
2019-09-13 15:03 ` [PATCH nf-next v6 3/8] netfilter: nft_tunnel: add ipv6 check in nft_tunnel_mode_validate wenxu
2019-09-13 15:03 ` wenxu [this message]
2019-09-13 15:03 ` [PATCH nf-next v6 5/8] netfilter: nft_tunnel: support tunnel meta match offload wenxu
2019-09-13 15:03 ` [PATCH nf-next v6 6/8] netfilter: nft_tunnel: add NFTA_TUNNEL_KEY_RELEASE action wenxu
2019-09-13 15:03 ` [PATCH nf-next v6 7/8] netfilter: nft_objref: add nft_objref_type offload wenxu
2019-09-13 15:03 ` [PATCH nf-next v6 8/8] netfilter: nft_tunnel: support nft_tunnel_obj offload wenxu
2019-09-18  8:02 ` [PATCH nf-next v6 0/8] netfilter: nf_tables_offload: support tunnel offload wenxu
  -- strict thread matches above, loose matches on Subject: below --
2019-09-08 14:22 wenxu
2019-09-08 14:22 ` [PATCH nf-next v6 4/8] netfilter: nft_tunnel: support NFT_TUNNEL_IP6_SRC/DST match wenxu

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