[tproxy] TProxy v4: 2.6.23 addendum

[Jan Engelhardt]

Previous two were for 2.6.22, if using nf-dev, the following extra is 
needed.

---
 net/netfilter/xt_socket.c |    4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

Index: linux-2.6.22.1/net/netfilter/xt_socket.c
===================================================================
--- linux-2.6.22.1.orig/net/netfilter/xt_socket.c
+++ linux-2.6.22.1/net/netfilter/xt_socket.c
@@ -19,11 +19,11 @@
 #include <net/tcp.h>
 #include <net/udp.h>
 
-static int
+static bool
 socket_match(const struct sk_buff *skb, const struct net_device *in,
              const struct net_device *out, const struct xt_match *match,
              const void *matchinfo, int offset, unsigned int protoff,
-             int *hotdrop)
+             bool *hotdrop)
 {
 	const struct iphdr *iph = ip_hdr(skb);
 	struct udphdr _hdr, *hp;