This is possible now that the xt_table structure is passed in via *priv.
Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
}
extern void *ipt_alloc_initial_table(const struct xt_table *);
-extern unsigned int ipt_do_table(struct sk_buff *skb,
- const struct nf_hook_state *state,
- struct xt_table *table);
+extern unsigned int ipt_do_table(void *priv,
+ struct sk_buff *skb,
+ const struct nf_hook_state *state);
#ifdef CONFIG_NETFILTER_XTABLES_COMPAT
#include <net/compat.h>
/* Returns one of the generic firewall policies, like NF_ACCEPT. */
unsigned int
-ipt_do_table(struct sk_buff *skb,
- const struct nf_hook_state *state,
- struct xt_table *table)
+ipt_do_table(void *priv,
+ struct sk_buff *skb,
+ const struct nf_hook_state *state)
{
+ const struct xt_table *table = priv;
unsigned int hook = state->hook;
static const char nulldevname[IFNAMSIZ] __attribute__((aligned(sizeof(long))));
const struct iphdr *ip;
.priority = NF_IP_PRI_FILTER,
};
-static unsigned int
-iptable_filter_hook(void *priv, struct sk_buff *skb,
- const struct nf_hook_state *state)
-{
- return ipt_do_table(skb, state, priv);
-}
-
static struct nf_hook_ops *filter_ops __read_mostly;
/* Default to forward because I got too much mail already. */
if (ret < 0)
return ret;
- filter_ops = xt_hook_ops_alloc(&packet_filter, iptable_filter_hook);
+ filter_ops = xt_hook_ops_alloc(&packet_filter, ipt_do_table);
if (IS_ERR(filter_ops)) {
xt_unregister_template(&packet_filter);
return PTR_ERR(filter_ops);
};
static unsigned int
-ipt_mangle_out(struct sk_buff *skb, const struct nf_hook_state *state, void *priv)
+ipt_mangle_out(void *priv, struct sk_buff *skb, const struct nf_hook_state *state)
{
unsigned int ret;
const struct iphdr *iph;
daddr = iph->daddr;
tos = iph->tos;
- ret = ipt_do_table(skb, state, priv);
+ ret = ipt_do_table(priv, skb, state);
/* Reroute for ANY change. */
if (ret != NF_DROP && ret != NF_STOLEN) {
iph = ip_hdr(skb);
const struct nf_hook_state *state)
{
if (state->hook == NF_INET_LOCAL_OUT)
- return ipt_mangle_out(skb, state, priv);
- return ipt_do_table(skb, state, priv);
+ return ipt_mangle_out(priv, skb, state);
+ return ipt_do_table(priv, skb, state);
}
static struct nf_hook_ops *mangle_ops __read_mostly;
.af = NFPROTO_IPV4,
};
-static unsigned int iptable_nat_do_chain(void *priv,
- struct sk_buff *skb,
- const struct nf_hook_state *state)
-{
- return ipt_do_table(skb, state, priv);
-}
-
static const struct nf_hook_ops nf_nat_ipv4_ops[] = {
{
- .hook = iptable_nat_do_chain,
+ .hook = ipt_do_table,
.pf = NFPROTO_IPV4,
.hooknum = NF_INET_PRE_ROUTING,
.priority = NF_IP_PRI_NAT_DST,
},
{
- .hook = iptable_nat_do_chain,
+ .hook = ipt_do_table,
.pf = NFPROTO_IPV4,
.hooknum = NF_INET_POST_ROUTING,
.priority = NF_IP_PRI_NAT_SRC,
},
{
- .hook = iptable_nat_do_chain,
+ .hook = ipt_do_table,
.pf = NFPROTO_IPV4,
.hooknum = NF_INET_LOCAL_OUT,
.priority = NF_IP_PRI_NAT_DST,
},
{
- .hook = iptable_nat_do_chain,
+ .hook = ipt_do_table,
.pf = NFPROTO_IPV4,
.hooknum = NF_INET_LOCAL_IN,
.priority = NF_IP_PRI_NAT_SRC,
.priority = NF_IP_PRI_RAW_BEFORE_DEFRAG,
};
-/* The work comes in here from netfilter.c. */
-static unsigned int
-iptable_raw_hook(void *priv, struct sk_buff *skb,
- const struct nf_hook_state *state)
-{
- return ipt_do_table(skb, state, priv);
-}
-
static struct nf_hook_ops *rawtable_ops __read_mostly;
static int iptable_raw_table_init(struct net *net)
if (ret < 0)
return ret;
- rawtable_ops = xt_hook_ops_alloc(table, iptable_raw_hook);
+ rawtable_ops = xt_hook_ops_alloc(table, ipt_do_table);
if (IS_ERR(rawtable_ops)) {
xt_unregister_template(table);
return PTR_ERR(rawtable_ops);
.priority = NF_IP_PRI_SECURITY,
};
-static unsigned int
-iptable_security_hook(void *priv, struct sk_buff *skb,
- const struct nf_hook_state *state)
-{
- return ipt_do_table(skb, state, priv);
-}
-
static struct nf_hook_ops *sectbl_ops __read_mostly;
static int iptable_security_table_init(struct net *net)
if (ret < 0)
return ret;
- sectbl_ops = xt_hook_ops_alloc(&security_table, iptable_security_hook);
+ sectbl_ops = xt_hook_ops_alloc(&security_table, ipt_do_table);
if (IS_ERR(sectbl_ops)) {
xt_unregister_template(&security_table);
return PTR_ERR(sectbl_ops);