diff --git a/Makefile b/Makefile
index 7fa80d5..fbb428f 100644
--- a/Makefile
+++ b/Makefile
@@ -2,7 +2,7 @@ include $(TOPDIR)/rules.mk
 include $(INCLUDE_DIR)/kernel.mk
  
 PKG_NAME:=xmurp-ua
-PKG_RELEASE:=17
+PKG_RELEASE:=22
  
 include $(INCLUDE_DIR)/package.mk
 
diff --git a/src/xmurp-ua.c b/src/xmurp-ua.c
index b16c574..632a312 100644
--- a/src/xmurp-ua.c
+++ b/src/xmurp-ua.c
@@ -154,39 +154,47 @@ unsigned int hook_funcion(void *priv, struct sk_buff *skb, const struct nf_hook_
 	register u_int8_t jump_to_next_function = 0, ret;
 
 	// 过滤发往外网的HTTP请求的包，且要求包的应用层内容不短于3字节
-	debug_n++;
 	if(skb == 0)
 	{
-		if(debug_n < 10)
-			printk("xmurp-ua warning, something maybe wrong.\n");
+//		if(debug_n < 10)
+//			printk("xmurp-ua warning, something maybe wrong.\n");
 		return NF_ACCEPT;
 	}
 	iph = ip_hdr(skb);
 	if((ntohl(iph->daddr) & 0xffff0000) == 0xc0a80000)
 	{
-		if(debug_n < 10)
-			printk("xmurp-ua bypass as dst in local net.\n");
+//		if(debug_n < 10)
+//			printk("xmurp-ua bypass as dst in local net.\n");
 		return NF_ACCEPT;
 	}
 	if(iph->protocol != IPPROTO_TCP)
 	{
-		if(debug_n < 10)
-			printk("xmurp-ua bypass as protocol not tcp.\n");
+//		if(debug_n < 10)
+//			printk("xmurp-ua bypass as protocol not tcp.\n");
 		return NF_ACCEPT;
 	}
 	tcph = tcp_hdr(skb);
 	if(ntohs(tcph->dest) != 80)
 	{
-		if(debug_n < 10)
-			printk("xmurp-ua bypass as port %u not 80.\n", ntohs(tcph->dest));
+//		if(debug_n < 10)
+//			printk("xmurp-ua bypass as port %u not 80.\n", ntohs(tcph->dest));
 		return NF_ACCEPT;
 	}
 	data_start = (char *)tcph + tcph->doff * 4;
 	data_end = (char *)tcph + ntohs(iph->tot_len) - iph->ihl * 4;
+	debug_n++;
 	if(data_end - data_start < 4)
 	{
 		if(debug_n < 10)
-			printk("xmurp-ua bypass as data too short.\n");
+			printk("xmurp-ua bypass as data too short.");
+		if(debug_n < 10)
+			printk("xmurp-ua tcph -> doff = %x, iph -> tot_len = %x, iph -> ihl = %x.\n", tcph -> doff, iph -> tot_len, iph -> ihl);
+		if(debug_n < 10)
+			printk("xmurp-ua iph -> tot_len - iph, %x.\n", (char*)&(iph -> tot_len) - (char*)iph);
+		if(debug_n < 10)
+			printk("xmurp-ua iph -> tot_len %x.\n", *((u_int16_t*)&(iph -> tot_len)));
+		if(debug_n < 10)
+			printk("xmurp-ua iph message %x %x %x %x %x %x %x %x %x %x %x.\n", iph -> version, iph -> ihl, iph -> tos, iph -> tot_len, iph -> id, iph -> frag_off, iph -> ttl, iph -> protocol, iph -> check, iph -> saddr, iph -> daddr);
 		return NF_ACCEPT;
 	}
 	if(skb->mark & 0x00000001)