1 files changed, 87 insertions, 0 deletions
diff --git a/net/netfilter/nft_fib_netdev.c b/net/netfilter/nft_fib_netdev.c
new file mode 100644
index 000000000000..3997ee36cfbd
--- /dev/null
+++ b/net/netfilter/nft_fib_netdev.c
@@ -0,0 +1,87 @@
+/*
+ * Copyright (c) 2017 Pablo M. Bermudo Garay <pablombg@gmail.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * This code is based on net/netfilter/nft_fib_inet.c, written by
+ * Florian Westphal <fw@strlen.de>.
+ */
+
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/module.h>
+#include <linux/netlink.h>
+#include <linux/netfilter.h>
+#include <linux/netfilter/nf_tables.h>
+#include <net/netfilter/nf_tables_core.h>
+#include <net/netfilter/nf_tables.h>
+
+#include <net/netfilter/nft_fib.h>
+
+static void nft_fib_netdev_eval(const struct nft_expr *expr,
+				struct nft_regs *regs,
+				const struct nft_pktinfo *pkt)
+{
+	const struct nft_fib *priv = nft_expr_priv(expr);
+
+	switch (ntohs(pkt->skb->protocol)) {
+	case ETH_P_IP:
+		switch (priv->result) {
+		case NFT_FIB_RESULT_OIF:
+		case NFT_FIB_RESULT_OIFNAME:
+			return nft_fib4_eval(expr, regs, pkt);
+		case NFT_FIB_RESULT_ADDRTYPE:
+			return nft_fib4_eval_type(expr, regs, pkt);
+		}
+		break;
+	case ETH_P_IPV6:
+		switch (priv->result) {
+		case NFT_FIB_RESULT_OIF:
+		case NFT_FIB_RESULT_OIFNAME:
+			return nft_fib6_eval(expr, regs, pkt);
+		case NFT_FIB_RESULT_ADDRTYPE:
+			return nft_fib6_eval_type(expr, regs, pkt);
+		}
+		break;
+	}
+
+	regs->verdict.code = NFT_BREAK;
+}
+
+static struct nft_expr_type nft_fib_netdev_type;
+static const struct nft_expr_ops nft_fib_netdev_ops = {
+	.type		= &nft_fib_netdev_type,
+	.size		= NFT_EXPR_SIZE(sizeof(struct nft_fib)),
+	.eval		= nft_fib_netdev_eval,
+	.init		= nft_fib_init,
+	.dump		= nft_fib_dump,
+	.validate	= nft_fib_validate,
+};
+
+static struct nft_expr_type nft_fib_netdev_type __read_mostly = {
+	.family		= NFPROTO_NETDEV,
+	.name		= "fib",
+	.ops		= &nft_fib_netdev_ops,
+	.policy		= nft_fib_policy,
+	.maxattr	= NFTA_FIB_MAX,
+	.owner		= THIS_MODULE,
+};
+
+static int __init nft_fib_netdev_module_init(void)
+{
+	return nft_register_expr(&nft_fib_netdev_type);
+}
+
+static void __exit nft_fib_netdev_module_exit(void)
+{
+	nft_unregister_expr(&nft_fib_netdev_type);
+}
+
+module_init(nft_fib_netdev_module_init);
+module_exit(nft_fib_netdev_module_exit);
+
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Pablo M. Bermudo Garay <pablombg@gmail.com>");
+MODULE_ALIAS_NFT_AF_EXPR(5, "fib");