Add the rt linux 4.1.3-rt3 as base

[kvmfornfv.git] / kernel / net / ipv6 / netfilter / nft_chain_nat_ipv6.c

diff --git a/kernel/net/ipv6/netfilter/nft_chain_nat_ipv6.c b/kernel/net/ipv6/netfilter/nft_chain_nat_ipv6.c
new file mode 100644 (file)
index 0000000..951bb45
--- /dev/null
+++ b/kernel/net/ipv6/netfilter/nft_chain_nat_ipv6.c
@@ -0,0 +1,105 @@
+/*
+ * Copyright (c) 2011 Patrick McHardy <kaber@trash.net>
+ * Copyright (c) 2012 Intel Corporation
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ */
+
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/list.h>
+#include <linux/skbuff.h>
+#include <linux/ip.h>
+#include <linux/netfilter.h>
+#include <linux/netfilter_ipv6.h>
+#include <linux/netfilter/nf_tables.h>
+#include <net/netfilter/nf_conntrack.h>
+#include <net/netfilter/nf_nat.h>
+#include <net/netfilter/nf_nat_core.h>
+#include <net/netfilter/nf_tables.h>
+#include <net/netfilter/nf_tables_ipv6.h>
+#include <net/netfilter/nf_nat_l3proto.h>
+#include <net/ipv6.h>
+
+static unsigned int nft_nat_do_chain(const struct nf_hook_ops *ops,
+                                    struct sk_buff *skb,
+                                    const struct nf_hook_state *state,
+                                    struct nf_conn *ct)
+{
+       struct nft_pktinfo pkt;
+
+       nft_set_pktinfo_ipv6(&pkt, ops, skb, state);
+
+       return nft_do_chain(&pkt, ops);
+}
+
+static unsigned int nft_nat_ipv6_fn(const struct nf_hook_ops *ops,
+                                   struct sk_buff *skb,
+                                   const struct nf_hook_state *state)
+{
+       return nf_nat_ipv6_fn(ops, skb, state, nft_nat_do_chain);
+}
+
+static unsigned int nft_nat_ipv6_in(const struct nf_hook_ops *ops,
+                                   struct sk_buff *skb,
+                                   const struct nf_hook_state *state)
+{
+       return nf_nat_ipv6_in(ops, skb, state, nft_nat_do_chain);
+}
+
+static unsigned int nft_nat_ipv6_out(const struct nf_hook_ops *ops,
+                                    struct sk_buff *skb,
+                                    const struct nf_hook_state *state)
+{
+       return nf_nat_ipv6_out(ops, skb, state, nft_nat_do_chain);
+}
+
+static unsigned int nft_nat_ipv6_local_fn(const struct nf_hook_ops *ops,
+                                         struct sk_buff *skb,
+                                         const struct nf_hook_state *state)
+{
+       return nf_nat_ipv6_local_fn(ops, skb, state, nft_nat_do_chain);
+}
+
+static const struct nf_chain_type nft_chain_nat_ipv6 = {
+       .name           = "nat",
+       .type           = NFT_CHAIN_T_NAT,
+       .family         = NFPROTO_IPV6,
+       .owner          = THIS_MODULE,
+       .hook_mask      = (1 << NF_INET_PRE_ROUTING) |
+                         (1 << NF_INET_POST_ROUTING) |
+                         (1 << NF_INET_LOCAL_OUT) |
+                         (1 << NF_INET_LOCAL_IN),
+       .hooks          = {
+               [NF_INET_PRE_ROUTING]   = nft_nat_ipv6_in,
+               [NF_INET_POST_ROUTING]  = nft_nat_ipv6_out,
+               [NF_INET_LOCAL_OUT]     = nft_nat_ipv6_local_fn,
+               [NF_INET_LOCAL_IN]      = nft_nat_ipv6_fn,
+       },
+};
+
+static int __init nft_chain_nat_ipv6_init(void)
+{
+       int err;
+
+       err = nft_register_chain_type(&nft_chain_nat_ipv6);
+       if (err < 0)
+               return err;
+
+       return 0;
+}
+
+static void __exit nft_chain_nat_ipv6_exit(void)
+{
+       nft_unregister_chain_type(&nft_chain_nat_ipv6);
+}
+
+module_init(nft_chain_nat_ipv6_init);
+module_exit(nft_chain_nat_ipv6_exit);
+
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Tomasz Bursztyka <tomasz.bursztyka@linux.intel.com>");
+MODULE_ALIAS_NFT_CHAIN(AF_INET6, "nat");