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netfilter: nf_tables: use hook state from xt_action_param structure

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Don't copy relevant fields from hook state structure, instead use the
one that is already available in struct xt_action_param.

This patch also adds a set of new wrapper functions to fetch relevant
hook state structure fields.

Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
This commit is contained in:
Pablo Neira Ayuso
2016-11-03 10:56:26 +01:00
parent 613dbd9572
commit 0e5a1c7eb3
24 changed files with 105 additions and 83 deletions
Download Patch File Download Diff File Expand all files Collapse all files

2
net/ipv4/netfilter/nft_dup_ipv4.c
View File

@@ -30,7 +30,7 @@ static void nft_dup_ipv4_eval(const struct nft_expr *expr,
};
int oif = regs->data[priv->sreg_dev];
nf_dup_ipv4(pkt->net, pkt->skb, pkt->hook, &gw, oif);
nf_dup_ipv4(nft_net(pkt), pkt->skb, nft_hook(pkt), &gw, oif);
}
static int nft_dup_ipv4_init(const struct nft_ctx *ctx,

14
net/ipv4/netfilter/nft_fib_ipv4.c
View File

@@ -45,9 +45,9 @@ void nft_fib4_eval_type(const struct nft_expr *expr, struct nft_regs *regs,
__be32 addr;
if (priv->flags & NFTA_FIB_F_IIF)
dev = pkt->in;
dev = nft_in(pkt);
else if (priv->flags & NFTA_FIB_F_OIF)
dev = pkt->out;
dev = nft_out(pkt);
iph = ip_hdr(pkt->skb);
if (priv->flags & NFTA_FIB_F_DADDR)
@@ -55,7 +55,7 @@ void nft_fib4_eval_type(const struct nft_expr *expr, struct nft_regs *regs,
else
addr = iph->saddr;
*dst = inet_dev_addr_type(pkt->net, dev, addr);
*dst = inet_dev_addr_type(nft_net(pkt), dev, addr);
}
EXPORT_SYMBOL_GPL(nft_fib4_eval_type);
@@ -89,13 +89,13 @@ void nft_fib4_eval(const struct nft_expr *expr, struct nft_regs *regs,
* Search results for the desired outinterface instead.
*/
if (priv->flags & NFTA_FIB_F_OIF)
oif = pkt->out;
oif = nft_out(pkt);
else if (priv->flags & NFTA_FIB_F_IIF)
oif = pkt->in;
oif = nft_in(pkt);
else
oif = NULL;
if (pkt->hook == NF_INET_PRE_ROUTING && fib4_is_local(pkt->skb)) {
if (nft_hook(pkt) == NF_INET_PRE_ROUTING && fib4_is_local(pkt->skb)) {
nft_fib_store_result(dest, priv->result, pkt, LOOPBACK_IFINDEX);
return;
}
@@ -122,7 +122,7 @@ void nft_fib4_eval(const struct nft_expr *expr, struct nft_regs *regs,
fl4.saddr = get_saddr(iph->daddr);
}
if (fib_lookup(pkt->net, &fl4, &res, FIB_LOOKUP_IGNORE_LINKSTATE))
if (fib_lookup(nft_net(pkt), &fl4, &res, FIB_LOOKUP_IGNORE_LINKSTATE))
return;
switch (res.type) {

4
net/ipv4/netfilter/nft_masq_ipv4.c
View File

@@ -31,8 +31,8 @@ static void nft_masq_ipv4_eval(const struct nft_expr *expr,
range.max_proto.all =
*(__be16 *)&regs->data[priv->sreg_proto_max];
}
regs->verdict.code = nf_nat_masquerade_ipv4(pkt->skb, pkt->hook,
&range, pkt->out);
regs->verdict.code = nf_nat_masquerade_ipv4(pkt->skb, nft_hook(pkt),
&range, nft_out(pkt));
}
static struct nft_expr_type nft_masq_ipv4_type;

3
net/ipv4/netfilter/nft_redir_ipv4.c
View File

@@ -35,8 +35,7 @@ static void nft_redir_ipv4_eval(const struct nft_expr *expr,
mr.range[0].flags |= priv->flags;
regs->verdict.code = nf_nat_redirect_ipv4(pkt->skb, &mr,
pkt->hook);
regs->verdict.code = nf_nat_redirect_ipv4(pkt->skb, &mr, nft_hook(pkt));
}
static struct nft_expr_type nft_redir_ipv4_type;

4
net/ipv4/netfilter/nft_reject_ipv4.c
View File

@@ -27,10 +27,10 @@ static void nft_reject_ipv4_eval(const struct nft_expr *expr,
switch (priv->type) {
case NFT_REJECT_ICMP_UNREACH:
nf_send_unreach(pkt->skb, priv->icmp_code, pkt->hook);
nf_send_unreach(pkt->skb, priv->icmp_code, nft_hook(pkt));
break;
case NFT_REJECT_TCP_RST:
nf_send_reset(pkt->net, pkt->skb, pkt->hook);
nf_send_reset(nft_net(pkt), pkt->skb, nft_hook(pkt));
break;
default:
break;