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Message-Id: <20211017221522.853838-11-pablo@netfilter.org>
Date: Mon, 18 Oct 2021 00:15:17 +0200
From: Pablo Neira Ayuso <pablo@...filter.org>
To: netfilter-devel@...r.kernel.org
Cc: davem@...emloft.net, netdev@...r.kernel.org, kuba@...nel.org
Subject: [PATCH nf-next 10/15] netfilter: ebtables: allow use of ebt_do_table as hookfn
From: Florian Westphal <fw@...len.de>
This is possible now that the xt_table structure is passed via *priv.
Signed-off-by: Florian Westphal <fw@...len.de>
Signed-off-by: Pablo Neira Ayuso <pablo@...filter.org>
---
include/linux/netfilter_bridge/ebtables.h | 5 ++---
net/bridge/netfilter/ebtable_broute.c | 2 +-
net/bridge/netfilter/ebtable_filter.c | 13 +++----------
net/bridge/netfilter/ebtable_nat.c | 12 +++---------
net/bridge/netfilter/ebtables.c | 6 +++---
5 files changed, 12 insertions(+), 26 deletions(-)
diff --git a/include/linux/netfilter_bridge/ebtables.h b/include/linux/netfilter_bridge/ebtables.h
index 10a01978bc0d..a13296d6c7ce 100644
--- a/include/linux/netfilter_bridge/ebtables.h
+++ b/include/linux/netfilter_bridge/ebtables.h
@@ -112,9 +112,8 @@ extern int ebt_register_table(struct net *net,
const struct nf_hook_ops *ops);
extern void ebt_unregister_table(struct net *net, const char *tablename);
void ebt_unregister_table_pre_exit(struct net *net, const char *tablename);
-extern unsigned int ebt_do_table(struct sk_buff *skb,
- const struct nf_hook_state *state,
- struct ebt_table *table);
+extern unsigned int ebt_do_table(void *priv, struct sk_buff *skb,
+ const struct nf_hook_state *state);
/* True if the hook mask denotes that the rule is in a base chain,
* used in the check() functions */
diff --git a/net/bridge/netfilter/ebtable_broute.c b/net/bridge/netfilter/ebtable_broute.c
index a7af4eaff17d..1a11064f9990 100644
--- a/net/bridge/netfilter/ebtable_broute.c
+++ b/net/bridge/netfilter/ebtable_broute.c
@@ -66,7 +66,7 @@ static unsigned int ebt_broute(void *priv, struct sk_buff *skb,
NFPROTO_BRIDGE, s->in, NULL, NULL,
s->net, NULL);
- ret = ebt_do_table(skb, &state, priv);
+ ret = ebt_do_table(priv, skb, &state);
if (ret != NF_DROP)
return ret;
diff --git a/net/bridge/netfilter/ebtable_filter.c b/net/bridge/netfilter/ebtable_filter.c
index c0b121df4a9a..cb949436bc0e 100644
--- a/net/bridge/netfilter/ebtable_filter.c
+++ b/net/bridge/netfilter/ebtable_filter.c
@@ -58,28 +58,21 @@ static const struct ebt_table frame_filter = {
.me = THIS_MODULE,
};
-static unsigned int
-ebt_filter_hook(void *priv, struct sk_buff *skb,
- const struct nf_hook_state *state)
-{
- return ebt_do_table(skb, state, priv);
-}
-
static const struct nf_hook_ops ebt_ops_filter[] = {
{
- .hook = ebt_filter_hook,
+ .hook = ebt_do_table,
.pf = NFPROTO_BRIDGE,
.hooknum = NF_BR_LOCAL_IN,
.priority = NF_BR_PRI_FILTER_BRIDGED,
},
{
- .hook = ebt_filter_hook,
+ .hook = ebt_do_table,
.pf = NFPROTO_BRIDGE,
.hooknum = NF_BR_FORWARD,
.priority = NF_BR_PRI_FILTER_BRIDGED,
},
{
- .hook = ebt_filter_hook,
+ .hook = ebt_do_table,
.pf = NFPROTO_BRIDGE,
.hooknum = NF_BR_LOCAL_OUT,
.priority = NF_BR_PRI_FILTER_OTHER,
diff --git a/net/bridge/netfilter/ebtable_nat.c b/net/bridge/netfilter/ebtable_nat.c
index 4078151c224f..5ee0531ae506 100644
--- a/net/bridge/netfilter/ebtable_nat.c
+++ b/net/bridge/netfilter/ebtable_nat.c
@@ -58,27 +58,21 @@ static const struct ebt_table frame_nat = {
.me = THIS_MODULE,
};
-static unsigned int ebt_nat_hook(void *priv, struct sk_buff *skb,
- const struct nf_hook_state *state)
-{
- return ebt_do_table(skb, state, priv);
-}
-
static const struct nf_hook_ops ebt_ops_nat[] = {
{
- .hook = ebt_nat_hook,
+ .hook = ebt_do_table,
.pf = NFPROTO_BRIDGE,
.hooknum = NF_BR_LOCAL_OUT,
.priority = NF_BR_PRI_NAT_DST_OTHER,
},
{
- .hook = ebt_nat_hook,
+ .hook = ebt_do_table,
.pf = NFPROTO_BRIDGE,
.hooknum = NF_BR_POST_ROUTING,
.priority = NF_BR_PRI_NAT_SRC,
},
{
- .hook = ebt_nat_hook,
+ .hook = ebt_do_table,
.pf = NFPROTO_BRIDGE,
.hooknum = NF_BR_PRE_ROUTING,
.priority = NF_BR_PRI_NAT_DST_BRIDGED,
diff --git a/net/bridge/netfilter/ebtables.c b/net/bridge/netfilter/ebtables.c
index 83d1798dfbb4..4a1508a1c566 100644
--- a/net/bridge/netfilter/ebtables.c
+++ b/net/bridge/netfilter/ebtables.c
@@ -189,10 +189,10 @@ ebt_get_target_c(const struct ebt_entry *e)
}
/* Do some firewalling */
-unsigned int ebt_do_table(struct sk_buff *skb,
- const struct nf_hook_state *state,
- struct ebt_table *table)
+unsigned int ebt_do_table(void *priv, struct sk_buff *skb,
+ const struct nf_hook_state *state)
{
+ struct ebt_table *table = priv;
unsigned int hook = state->hook;
int i, nentries;
struct ebt_entry *point;
--
2.30.2
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