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Diffstat (limited to 'release/src/linux/linux/net/ipv4/netfilter/ipt_BCOUNT.c')
-rw-r--r--release/src/linux/linux/net/ipv4/netfilter/ipt_BCOUNT.c63
1 files changed, 63 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..b40e7e2e
--- /dev/null
+++ b/release/src/linux/linux/net/ipv4/netfilter/ipt_BCOUNT.c
@@ -0,0 +1,63 @@
+/*
+
+ BCOUNT target
+ Copyright (C) 2006 Jonathan Zarate
+
+ Licensed under GNU GPL v2 or later.
+
+*/
+#include <linux/module.h>
+#include <linux/skbuff.h>
+#include <linux/if_ether.h>
+
+#include <linux/netfilter_ipv4/ip_tables.h>
+#include <linux/netfilter_ipv4/ip_conntrack.h>
+#include <linux/netfilter_ipv4/ipt_BCOUNT.h>
+
+// #define DEBUG_BCOUNT
+
+static unsigned int target(struct sk_buff **pskb, unsigned int hooknum,
+ const struct net_device *in, const struct net_device *out,
+ const void *targinfo, void *userinfo)
+{
+ struct ip_conntrack *ct;
+ enum ip_conntrack_info ctinfo;
+
+ ct = ip_conntrack_get(*pskb, &ctinfo);
+ if (ct) {
+ ct->bcount += (*pskb)->len;
+ if (ct->bcount >= 0x0FFFFFFF) ct->bcount = 0x0FFFFFFF;
+#ifdef DEBUG_BCOUNT
+ if (net_ratelimit())
+ printf(KERN_DEBUG "BCOUNT %lx %lx\n", (*pskb)->len, ct->bcount);
+#endif
+ }
+ return IPT_CONTINUE;
+}
+
+static int checkentry(const char *tablename, const struct ipt_entry *e, void *targinfo,
+ unsigned int targinfosize, unsigned int hook_mask)
+{
+ return (targinfosize == IPT_ALIGN(sizeof(struct ipt_BCOUNT_target)));
+}
+
+static struct ipt_target BCOUNT_target
+= { { NULL, NULL }, "BCOUNT", target, checkentry, NULL, THIS_MODULE };
+
+static int __init init(void)
+{
+ return ipt_register_target(&BCOUNT_target);
+}
+
+static void __exit fini(void)
+{
+ ipt_unregister_target(&BCOUNT_target);
+}
+
+module_init(init);
+module_exit(fini);
+
+
+MODULE_AUTHOR("Jonathan Zarate");
+MODULE_DESCRIPTION("BCOUNT target");
+MODULE_LICENSE("GPL");