![leroy christophe](/assets/img/avatar_default.png)
Make sure this fetches 16-bits port data from the register. Remove casting to make sparse happy, not needed anymore. Signed-off-by: leroy christophe <christophe.leroy@c-s.fr> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
78 lines
2.2 KiB
C
78 lines
2.2 KiB
C
/*
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* Copyright (c) 2014 Arturo Borrero Gonzalez <arturo.borrero.glez@gmail.com>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*/
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#include <linux/kernel.h>
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#include <linux/init.h>
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#include <linux/module.h>
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#include <linux/netlink.h>
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#include <linux/netfilter.h>
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#include <linux/netfilter/nf_tables.h>
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#include <net/netfilter/nf_tables.h>
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#include <net/netfilter/nf_nat.h>
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#include <net/netfilter/nft_redir.h>
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#include <net/netfilter/nf_nat_redirect.h>
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static void nft_redir_ipv6_eval(const struct nft_expr *expr,
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struct nft_data data[NFT_REG_MAX + 1],
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const struct nft_pktinfo *pkt)
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{
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struct nft_redir *priv = nft_expr_priv(expr);
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struct nf_nat_range range;
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unsigned int verdict;
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memset(&range, 0, sizeof(range));
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if (priv->sreg_proto_min) {
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range.min_proto.all =
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*(__be16 *)&data[priv->sreg_proto_min].data[0];
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range.max_proto.all =
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*(__be16 *)&data[priv->sreg_proto_max].data[0];
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range.flags |= NF_NAT_RANGE_PROTO_SPECIFIED;
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}
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range.flags |= priv->flags;
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verdict = nf_nat_redirect_ipv6(pkt->skb, &range, pkt->ops->hooknum);
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data[NFT_REG_VERDICT].verdict = verdict;
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}
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static struct nft_expr_type nft_redir_ipv6_type;
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static const struct nft_expr_ops nft_redir_ipv6_ops = {
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.type = &nft_redir_ipv6_type,
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.size = NFT_EXPR_SIZE(sizeof(struct nft_redir)),
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.eval = nft_redir_ipv6_eval,
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.init = nft_redir_init,
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.dump = nft_redir_dump,
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.validate = nft_redir_validate,
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};
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static struct nft_expr_type nft_redir_ipv6_type __read_mostly = {
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.family = NFPROTO_IPV6,
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.name = "redir",
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.ops = &nft_redir_ipv6_ops,
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.policy = nft_redir_policy,
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.maxattr = NFTA_REDIR_MAX,
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.owner = THIS_MODULE,
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};
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static int __init nft_redir_ipv6_module_init(void)
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{
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return nft_register_expr(&nft_redir_ipv6_type);
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}
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static void __exit nft_redir_ipv6_module_exit(void)
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{
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nft_unregister_expr(&nft_redir_ipv6_type);
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}
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module_init(nft_redir_ipv6_module_init);
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module_exit(nft_redir_ipv6_module_exit);
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MODULE_LICENSE("GPL");
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MODULE_AUTHOR("Arturo Borrero Gonzalez <arturo.borrero.glez@gmail.com>");
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MODULE_ALIAS_NFT_AF_EXPR(AF_INET6, "redir");
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