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- /*
- * Copyright (c) 2008-2009 Patrick McHardy <kaber@trash.net>
- * Copyright (c) 2013 Eric Leblond <eric@regit.org>
- *
- * 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.
- *
- * Development of this code funded by Astaro AG (http://www.astaro.com/)
- */
- #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.h>
- #include <net/netfilter/nft_reject.h>
- #include <net/netfilter/ipv6/nf_reject.h>
- static void nft_reject_ipv6_eval(const struct nft_expr *expr,
- struct nft_regs *regs,
- const struct nft_pktinfo *pkt)
- {
- struct nft_reject *priv = nft_expr_priv(expr);
- switch (priv->type) {
- case NFT_REJECT_ICMP_UNREACH:
- nf_send_unreach6(pkt->net, pkt->skb, priv->icmp_code,
- pkt->hook);
- break;
- case NFT_REJECT_TCP_RST:
- nf_send_reset6(pkt->net, pkt->skb, pkt->hook);
- break;
- default:
- break;
- }
- regs->verdict.code = NF_DROP;
- }
- static struct nft_expr_type nft_reject_ipv6_type;
- static const struct nft_expr_ops nft_reject_ipv6_ops = {
- .type = &nft_reject_ipv6_type,
- .size = NFT_EXPR_SIZE(sizeof(struct nft_reject)),
- .eval = nft_reject_ipv6_eval,
- .init = nft_reject_init,
- .dump = nft_reject_dump,
- };
- static struct nft_expr_type nft_reject_ipv6_type __read_mostly = {
- .family = NFPROTO_IPV6,
- .name = "reject",
- .ops = &nft_reject_ipv6_ops,
- .policy = nft_reject_policy,
- .maxattr = NFTA_REJECT_MAX,
- .owner = THIS_MODULE,
- };
- static int __init nft_reject_ipv6_module_init(void)
- {
- return nft_register_expr(&nft_reject_ipv6_type);
- }
- static void __exit nft_reject_ipv6_module_exit(void)
- {
- nft_unregister_expr(&nft_reject_ipv6_type);
- }
- module_init(nft_reject_ipv6_module_init);
- module_exit(nft_reject_ipv6_module_exit);
- MODULE_LICENSE("GPL");
- MODULE_AUTHOR("Patrick McHardy <kaber@trash.net>");
- MODULE_ALIAS_NFT_AF_EXPR(AF_INET6, "reject");
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