protocol_constants.h

/* This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

#ifndef __PROTOCOL_CONSTANTS_H__
#define __PROTOCOL_CONSTANTS_H__

#include <stdint.h>
#include "endianness.h"

/*
 * This header file defines some network protocol header constants 
 */

/*
* Useful constants (endianness dependant)
*/
#if defined(BIG_ENDIAN_DETECTED)
        //Useful ETH_TYPE values
        #define ETH_TYPE_MPLS_UNICAST           0x8847
        #define ETH_TYPE_MPLS_MULTICAST         0x8848
        #define ETH_TYPE_8021Q                  0x8100 
        #define ETH_TYPE_IPV4                   0x0800
        #define ETH_TYPE_IPV6                   0x86DD
        #define ETH_TYPE_PPPOE_DISCOVERY        0x8863
        #define ETH_TYPE_PPPOE_SESSION          0x8864
        #define ETH_TYPE_ARP                    0x0806
        #define ETH_TYPE_PBB                    0x88E7
        
        //VLAN values
        #define VLAN_CTAG_ETHER_TYPE 0x8100
        #define VLAN_STAG_ETHER_TYPE 0x88a8
        #define VLAN_ITAG_ETHER_TYPE 0x88e7
        //MPLS values

        //PPP values
        #define PPP_PROT_PADDING        0x0001 // 0x00 0x01 in network byte order
        #define PPP_PROT_LCP            0xc021 // 0xc0 0x21 in network byte order
        #define PPP_PROT_PAP            0xc023 // 0xc0 0x23 in network byte order
        #define PPP_PROT_LQR            0xc025 // 0xc0 0x25 in network byte order
        #define PPP_PROT_CHAP           0xc223 // 0xc2 0x23 in network byte order
        #define PPP_PROT_EAP            0xc227 // 0xc2 0x27 in network byte order
        #define PPP_PROT_IPCP           0x8021 // 0x80 0x21 in network byte order
        #define PPP_PROT_IPV4           0x0021 // 0x00 0x21 in network byte order
        #define PPP_PROT_IPV6CP         0x8057 // 0x80 0x57 in network byte order
        #define PPP_PROT_IPV6           0x0057 // 0x00 0x57 in network byte order
        #define PPP_PROT_CCP            0x80fd // 0x80 0xfd in network byte order
        
        //Useful UDP destination port values
        #define UDP_DST_PORT_GTPC               0x084B //2123
        #define UDP_DST_PORT_GTPU               0x0868 //2152
        #define UDP_DST_PORT_CAPWAPC    0x147e //5246
        #define UDP_DST_PORT_CAPWAPU    0x147f //5247

#elif defined(LITTLE_ENDIAN_DETECTED)
        //Useful ETH_TYPE values
        #define ETH_TYPE_MPLS_UNICAST           0x4788
        #define ETH_TYPE_MPLS_MULTICAST         0x4888
        #define ETH_TYPE_8021Q                  0x0081 
        #define ETH_TYPE_IPV4                   0x0008
        #define ETH_TYPE_IPV6                   0xDD86
        #define ETH_TYPE_PPPOE_DISCOVERY        0x6388
        #define ETH_TYPE_PPPOE_SESSION          0x6488
        #define ETH_TYPE_ARP                    0x0608
        #define ETH_TYPE_PBB                    0xE788
        
        //VLAN values
        #define VLAN_CTAG_ETHER_TYPE 0x0081
        #define VLAN_STAG_ETHER_TYPE 0xa888
        #define VLAN_ITAG_ETHER_TYPE 0xe788
        //MPLS values
        
        //PPP values
        #define PPP_PROT_PADDING        0x0100 // 0x00 0x01 in network byte order
        #define PPP_PROT_LCP            0x21c0 // 0xc0 0x21 in network byte order
        #define PPP_PROT_PAP            0x23c0 // 0xc0 0x23 in network byte order
        #define PPP_PROT_LQR            0x25c0 // 0xc0 0x25 in network byte order
        #define PPP_PROT_CHAP           0x23c2 // 0xc2 0x23 in network byte order
        #define PPP_PROT_EAP            0x27c2 // 0xc2 0x27 in network byte order
        #define PPP_PROT_IPCP           0x2180 // 0x80 0x21 in network byte order
        #define PPP_PROT_IPV4           0x2100 // 0x00 0x21 in network byte order
        #define PPP_PROT_IPV6CP         0x5780 // 0x80 0x57 in network byte order
        #define PPP_PROT_IPV6           0x5700 // 0x00 0x57 in network byte order
        #define PPP_PROT_CCP            0xfd80 // 0x80 0xfd in network byte order

        //Useful UDP destination port values
        #define UDP_DST_PORT_GTPC               0x4B08 //2123
        #define UDP_DST_PORT_GTPU               0x6808 //2152
        #define UDP_DST_PORT_CAPWAPC    0x7e14 //5246
        #define UDP_DST_PORT_CAPWAPU    0x7f14 //5247

#else
        #error Unknwon endianness
#endif

/*
* Endianness agnostic (8bit or less)
*/
// we use this value to compare (grater or smaller)
// because of that we must do the comparison in HBO
// and therefore we don't need to define it twice
#define LLC_DELIMITER_HBO 0x0600

//Useful IP_PROTO values
#define IP_PROTO_TCP            6
#define IP_PROTO_UDP            17
#define IP_PROTO_SCTP           132
#define IP_PROTO_GRE            47
#define IP_PROTO_ICMPV4         1
#define IP_PROTO_ICMPV6         58

//PPP PROTO values
#define PPP_PROTO_IP4           0x21 
#define PPP_PROTO_IP6           0x57


#endif //__PROTOCOL_CONSTANTS_H__