1 files changed, 88 insertions, 0 deletions
diff --git a/src/common/Network/Packet/CPktCmn.h b/src/common/Network/Packet/CPktCmn.h
new file mode 100755
index 00000000..a107c5a3
--- /dev/null
+++ b/src/common/Network/Packet/CPktCmn.h
@@ -0,0 +1,88 @@
+#ifndef PKT_CMN_H
+#define PKT_CMN_H
+/*
+Copyright (c) 2015-2015 Cisco Systems, Inc.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+
+                                
+#include <common/c_common.h>
+#include <common/bitMan.h>
+#include <stdio.h>
+#include <string.h>
+#include <stdlib.h>
+#include "pal_utl.h"
+
+
+#define PKT_HTONL(x) (PAL_NTOHL(x))
+#define PKT_HTONS(x) (PAL_NTOHS(x))
+
+#define PKT_NTOHL(x) (PAL_NTOHL(x))
+#define PKT_NTOHS(x) (PAL_NTOHS(x))
+
+
+// returns cs in NETWROK order
+uint16_t pkt_InetChecksum(uint8_t* data , uint16_t len);
+
+// len MUST be an even number !!!
+// len2 can be odd.
+// returns cs in NETWROK order
+uint16_t pkt_InetChecksum(uint8_t* data , uint16_t len, uint8_t* data2 , uint16_t len2);
+    
+// this functiion updates an inet-checksum.
+// It accepts the checksum field AS IS from the packet, the old byte's value
+// and the new byte's value.
+// the cs, old and new values must be entered in NETWORK byte order !!!
+// the return value is also in NETWORK byte order !!
+uint16_t pkt_UpdateInetChecksum(uint16_t csFieldFromPacket, uint16_t oldVal, uint16_t newVal);
+
+// checksum and csToSubtract are two uint16_t cs fields AS THEY APPEAR INSIDE A PACKET !
+uint16_t pkt_SubtractInetChecksum(uint16_t checksum, uint16_t csToSubtract);
+
+// checksum and csToAdd are two uint16_t cs fields AS THEY APPEAR INSIDE A PACKET !
+uint16_t pkt_AddInetChecksum(uint16_t checksum, uint16_t csToAdd);
+
+
+struct Tunnels
+{
+	enum Type 
+	{
+		// basic tunnels have a bit each. They can be bitwise OR ed.
+		// WARNING: We use this number as a Uint8 in some places - don't go over 1 byte !!!
+
+		//Another warning: DO NOT change the values of these symbols, unless you have permission from everyone who
+		//uses them. These values are externally exposed through CmdlTunnel interfaces, and therefore JRT relies on these 
+		//specific values. (Assi - Jan 2006)
+		Empty			= 0x00,
+		UNTUNNELED_Marker       = 0x01,
+		VLAN			= 0x01, 
+		MPLS			= 0x02, 
+		L2TP			= 0x04,
+		IPinIP			= 0x08,
+        GRE			    = 0x10,
+		Ethernet		= 0x20,//This is not tunneled. It's an exception, until all these values are changed.
+		AnyIP			= 0x40,
+        AnyTunneled     = 0x7f,
+		TUNNELED_Marker = AnyTunneled,//Any sum of the values written above mustn't reach this value		
+		Unrecognized	= 0x80,
+        GTP             = 0x81        
+	};
+};
+
+
+
+
+#endif 
+