netfilter: Change return types of targets/watchers for Ebtables extensions

Signed-off-by: Jan Engelhardt <jengelh@medozas.de>
Signed-off-by: Patrick McHardy <kaber@trash.net>

include/linux/netfilter_bridge/ebtables.h

@@ -221,7 +221,7 @@ struct ebt_watcher
 {
 	struct list_head list;
 	const char name[EBT_FUNCTION_MAXNAMELEN];
-	void (*watcher)(const struct sk_buff *skb, unsigned int hooknr,
+	unsigned int (*watcher)(const struct sk_buff *skb, unsigned int hooknr,
 	   const struct net_device *in, const struct net_device *out,
 	   const void *watcherdata, unsigned int datalen);
 	bool (*check)(const char *tablename, unsigned int hookmask,
@@ -235,8 +235,8 @@ struct ebt_target
 {
 	struct list_head list;
 	const char name[EBT_FUNCTION_MAXNAMELEN];
-	/* returns one of the standard verdicts */
-	int (*target)(struct sk_buff *skb, unsigned int hooknr,
+	/* returns one of the standard EBT_* verdicts */
+	unsigned int (*target)(struct sk_buff *skb, unsigned int hooknr,
 	   const struct net_device *in, const struct net_device *out,
 	   const void *targetdata, unsigned int datalen);
 	bool (*check)(const char *tablename, unsigned int hookmask,

net/bridge/netfilter/ebt_arpreply.c

@@ -15,7 +15,7 @@
 #include <linux/netfilter_bridge/ebtables.h>
 #include <linux/netfilter_bridge/ebt_arpreply.h>
 
-static int ebt_target_reply(struct sk_buff *skb, unsigned int hooknr,
+static unsigned int ebt_target_reply(struct sk_buff *skb, unsigned int hooknr,
    const struct net_device *in, const struct net_device *out,
    const void *data, unsigned int datalen)
 {

net/bridge/netfilter/ebt_dnat.c

@@ -14,7 +14,7 @@
 #include <linux/netfilter_bridge/ebtables.h>
 #include <linux/netfilter_bridge/ebt_nat.h>
 
-static int ebt_target_dnat(struct sk_buff *skb, unsigned int hooknr,
+static unsigned int ebt_target_dnat(struct sk_buff *skb, unsigned int hooknr,
    const struct net_device *in, const struct net_device *out,
    const void *data, unsigned int datalen)
 {

net/bridge/netfilter/ebt_log.c

@@ -192,7 +192,7 @@ ebt_log_packet(u_int8_t pf, unsigned int hooknum,
 
 }
 
-static void ebt_log(const struct sk_buff *skb, unsigned int hooknr,
+static unsigned int ebt_log(const struct sk_buff *skb, unsigned int hooknr,
    const struct net_device *in, const struct net_device *out,
    const void *data, unsigned int datalen)
 {
@@ -209,6 +209,7 @@ static void ebt_log(const struct sk_buff *skb, unsigned int hooknr,
 	else
 		ebt_log_packet(NFPROTO_BRIDGE, hooknr, skb, in, out, &li,
 			       info->prefix);
+	return EBT_CONTINUE;
 }
 
 static struct ebt_watcher log =

net/bridge/netfilter/ebt_mark.c

@@ -18,7 +18,7 @@
 #include <linux/netfilter_bridge/ebtables.h>
 #include <linux/netfilter_bridge/ebt_mark_t.h>
 
-static int ebt_target_mark(struct sk_buff *skb, unsigned int hooknr,
+static unsigned int ebt_target_mark(struct sk_buff *skb, unsigned int hooknr,
    const struct net_device *in, const struct net_device *out,
    const void *data, unsigned int datalen)
 {

net/bridge/netfilter/ebt_nflog.c

@@ -19,11 +19,11 @@
 #include <linux/netfilter_bridge/ebt_nflog.h>
 #include <net/netfilter/nf_log.h>
 
-static void ebt_nflog(const struct sk_buff *skb,
-		      unsigned int hooknr,
-		      const struct net_device *in,
-		      const struct net_device *out,
-		      const void *data, unsigned int datalen)
+static unsigned int ebt_nflog(const struct sk_buff *skb,
+			      unsigned int hooknr,
+			      const struct net_device *in,
+			      const struct net_device *out,
+			      const void *data, unsigned int datalen)
 {
 	struct ebt_nflog_info *info = (struct ebt_nflog_info *)data;
 	struct nf_loginfo li;
@@ -34,6 +34,7 @@ static void ebt_nflog(const struct sk_buff *skb,
 	li.u.ulog.qthreshold = info->threshold;
 
 	nf_log_packet(PF_BRIDGE, hooknr, skb, in, out, &li, "%s", info->prefix);
+	return EBT_CONTINUE;
 }
 
 static bool ebt_nflog_check(const char *tablename,

net/bridge/netfilter/ebt_redirect.c

@@ -15,7 +15,8 @@
 #include <linux/netfilter_bridge/ebtables.h>
 #include <linux/netfilter_bridge/ebt_redirect.h>
 
-static int ebt_target_redirect(struct sk_buff *skb, unsigned int hooknr,
+static unsigned int ebt_target_redirect(struct sk_buff *skb,
+   unsigned int hooknr,
    const struct net_device *in, const struct net_device *out,
    const void *data, unsigned int datalen)
 {

net/bridge/netfilter/ebt_snat.c

@@ -16,7 +16,7 @@
 #include <linux/netfilter_bridge/ebtables.h>
 #include <linux/netfilter_bridge/ebt_nat.h>
 
-static int ebt_target_snat(struct sk_buff *skb, unsigned int hooknr,
+static unsigned int ebt_target_snat(struct sk_buff *skb, unsigned int hooknr,
    const struct net_device *in, const struct net_device *out,
    const void *data, unsigned int datalen)
 {

net/bridge/netfilter/ebt_ulog.c

@@ -246,13 +246,14 @@ static void ebt_log_packet(u_int8_t pf, unsigned int hooknum,
 	ebt_ulog_packet(hooknum, skb, in, out, &loginfo, prefix);
 }
 
-static void ebt_ulog(const struct sk_buff *skb, unsigned int hooknr,
+static unsigned int ebt_ulog(const struct sk_buff *skb, unsigned int hooknr,
    const struct net_device *in, const struct net_device *out,
    const void *data, unsigned int datalen)
 {
 	const struct ebt_ulog_info *uloginfo = data;
 
 	ebt_ulog_packet(hooknr, skb, in, out, uloginfo, NULL);
+	return EBT_CONTINUE;
 }
 
 static bool ebt_ulog_check(const char *tablename, unsigned int hookmask,