1 files changed, 59 insertions, 0 deletions
diff --git a/release/src/linux/linux/net/ipv4/netfilter/ipt_bcount.c b/release/src/linux/linux/net/ipv4/netfilter/ipt_bcount.c
new file mode 100644
index 00000000..63f93a14
--- /dev/null
+++ b/release/src/linux/linux/net/ipv4/netfilter/ipt_bcount.c
@@ -0,0 +1,59 @@
+/*
+
+	bcount match (experimental)
+	Copyright (C) 2006 Jonathan Zarate
+
+	Licensed under GNU GPL v2 or later.
+
+*/
+#include <linux/module.h>
+#include <linux/skbuff.h>
+#include <net/sock.h>
+#include <linux/netfilter_ipv4/ip_tables.h>
+#include <linux/netfilter_ipv4/ip_conntrack.h>
+#include <linux/netfilter_ipv4/ipt_bcount.h>
+
+//	#define LOG			printk
+#define LOG(...)	do { } while (0);
+
+
+static int match(const struct sk_buff *skb,	const struct net_device *in, const struct net_device *out,
+				 const void *matchinfo, int offset, const void *hdr, u_int16_t datalen, int *hotdrop)
+{
+	const struct ipt_bcount_match *info = matchinfo;
+	struct ip_conntrack *ct;
+	enum ip_conntrack_info ctinfo;
+
+	ct = ip_conntrack_get((struct sk_buff *)skb, &ctinfo);
+	if (!ct) return !info->invert;
+	return ((ct->bcount >= info->min) && (ct->bcount <= info->max)) ^ info->invert;
+}
+
+static int checkentry(const char *tablename, const struct ipt_ip *ip, void *matchinfo,
+					  unsigned int matchsize, unsigned int hook_mask)
+{
+	return (matchsize == IPT_ALIGN(sizeof(struct ipt_bcount_match)));
+}
+
+
+static struct ipt_match bcount_match
+= { { NULL, NULL }, "bcount", &match, &checkentry, NULL, THIS_MODULE };
+
+static int __init init(void)
+{
+	LOG(KERN_INFO "ipt_bcount <" __DATE__ " " __TIME__ "> loaded\n");
+	return ipt_register_match(&bcount_match);
+}
+
+static void __exit fini(void)
+{
+	ipt_unregister_match(&bcount_match);
+}
+
+module_init(init);
+module_exit(fini);
+
+
+MODULE_AUTHOR("Jonathan Zarate");
+MODULE_DESCRIPTION("bcount match");
+MODULE_LICENSE("GPL");