/*
*************************************************************************
* Ralink Tech Inc.
* 5F., No.36, Taiyuan St., Jhubei City,
* Hsinchu County 302,
* Taiwan, R.O.C.
*
* (c) Copyright 2002-2007, Ralink Technology, Inc.
*
* This program is free software; you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
* the Free Software Foundation; either version 2 of the License, or *
* (at your option) any later version. *
* *
* This program is distributed in the hope that it will be useful, *
* but WITHOUT ANY WARRANTY; without even the implied warranty of *
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
* GNU General Public License for more details. *
* *
* You should have received a copy of the GNU General Public License *
* along with this program; if not, write to the *
* Free Software Foundation, Inc., *
* 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
* *
*************************************************************************
Module Name:
ipv6.h
Abstract:
Miniport generic portion header file
Revision History:
Who When What
-------- ---------- ----------------------------------------------
*/
#ifndef __IPV6_HDR_H_
#define __IPV6_HDR_H_
#define IPV6_ADDR_LEN 16
#define IPV6_HDR_LEN 40
// IPv6 address definition
#define IPV6_LINK_LOCAL_ADDR_PREFIX 0xFE8
#define IPV6_SITE_LOCAL_ADDR_PREFIX 0xFEC
#define IPV6_LOCAL_ADDR_PREFIX 0xFE8
#define IPV6_MULTICAST_ADDR_PREFIX 0xFF
#define IPV6_LOOPBACK_ADDR 0x1
#define IPV6_UNSPECIFIED_ADDR 0x0
// defined as sequence in IPv6 header
#define IPV6_NEXT_HEADER_HOP_BY_HOP 0x00 // 0
#define IPV6_NEXT_HEADER_DESTINATION 0x3c // 60
#define IPV6_NEXT_HEADER_ROUTING 0x2b // 43
#define IPV6_NEXT_HEADER_FRAGMENT 0x2c // 44
#define IPV6_NEXT_HEADER_AUTHENTICATION 0x33 // 51
#define IPV6_NEXT_HEADER_ENCAPSULATION 0x32 // 50, RFC-2406
#define IPV6_NEXT_HEADER_NONE 0x3b // 59
#define IPV6_NEXT_HEADER_TCP 0x06
#define IPV6_NEXT_HEADER_UDP 0x11
#define IPV6_NEXT_HEADER_ICMPV6 0x3a
// ICMPv6 msg type definition
#define ICMPV6_MSG_TYPE_ROUTER_SOLICITATION 0x85 // 133
#define ROUTER_SOLICITATION_FIXED_LEN 8
#define ICMPV6_MSG_TYPE_ROUTER_ADVERTISEMENT 0x86 // 134
#define ROUTER_ADVERTISEMENT_FIXED_LEN 16
#define ICMPV6_MSG_TYPE_NEIGHBOR_SOLICITATION 0x87 // 135
#define NEIGHBOR_SOLICITATION_FIXED_LEN 24
#define ICMPV6_MSG_TYPE_NEIGHBOR_ADVERTISEMENT 0x88 // 136
#define NEIGHBOR_ADVERTISEMENT_FIXED_LEN 24
#define ICMPV6_MSG_TYPE_REDIRECT 0x89 // 137
#define REDIRECT_FIXED_LEN 40
/* IPv6 Address related structures */
typedef struct rt_ipv6_addr_
{
union
{
UCHAR ipv6Addr8[16];
USHORT ipv6Addr16[8];
UINT32 ipv6Addr32[4];
}addr;
#define ipv6_addr addr.ipv6Addr8
#define ipv6_addr16 addr.ipv6Addr16
#define ipv6_addr32 addr.ipv6Addr32
}RT_IPV6_ADDR, *PRT_IPV6_ADDR;
#define PRINT_IPV6_ADDR(ipv6Addr) \
OS_NTOHS((ipv6Addr).ipv6_addr16[0]), \
OS_NTOHS((ipv6Addr).ipv6_addr16[1]), \
OS_NTOHS((ipv6Addr).ipv6_addr16[2]), \
OS_NTOHS((ipv6Addr).ipv6_addr16[3]), \
OS_NTOHS((ipv6Addr).ipv6_addr16[4]), \
OS_NTOHS((ipv6Addr).ipv6_addr16[5]), \
OS_NTOHS((ipv6Addr).ipv6_addr16[6]), \
OS_NTOHS((ipv6Addr).ipv6_addr16[7])
/*IPv6 Header related structures */
typedef struct PACKED _rt_ipv6_hdr_
{
UINT32 ver:4,
trafficClass:8,
flowLabel:20;
USHORT payload_len;
UCHAR nextHdr;
UCHAR hopLimit;
RT_IPV6_ADDR srcAddr;
RT_IPV6_ADDR dstAddr;
}RT_IPV6_HDR, *PRT_IPV6_HDR;
typedef struct PACKED _rt_ipv6_ext_hdr_
{
UCHAR nextProto; // Indicate the protocol type of next extension header.
UCHAR extHdrLen; // optional field for msg length of this extension header which didn't include the first "nextProto" field.
UCHAR octets[1]; // hook to extend header message body.
}RT_IPV6_EXT_HDR, *PRT_IPV6_EXT_HDR;
/* ICMPv6 related structures */
typedef struct PACKED _rt_ipv6_icmpv6_hdr_
{
UCHAR type;
UCHAR code;
USHORT chksum;
UCHAR octets[1]; //hook to extend header message body.
}RT_ICMPV6_HDR, *PRT_ICMPV6_HDR;
typedef struct PACKED _rt_icmp6_option_hdr_
{
UCHAR type;
UCHAR len;
UCHAR octet[1];
}RT_ICMPV6_OPTION_HDR, *PRT_ICMPV6_OPTION_HDR;
typedef enum{
// Defined ICMPv6 Option Types.
TYPE_SRC_LL_ADDR = 1,
TYPE_TGT_LL_ADDR = 2,
TYPE_PREFIX_INFO = 3,
TYPE_REDIRECTED_HDR = 4,
TYPE_MTU = 5,
}ICMPV6_OPTIONS_TYPE_DEF;
static inline BOOLEAN IPv6ExtHdrHandle(
RT_IPV6_EXT_HDR *pExtHdr,
UCHAR *pProto,
UINT32 *pOffset)
{
UCHAR nextProto = 0xff;
UINT32 extLen = 0;
BOOLEAN status = TRUE;
//printk("%s(): parsing the Extension Header with Protocol(0x%x):\n", __FUNCTION__, *pProto);
switch (*pProto)
{
case IPV6_NEXT_HEADER_HOP_BY_HOP:
// IPv6ExtHopByHopHandle();
nextProto = pExtHdr->nextProto;
extLen = (pExtHdr->extHdrLen + 1) * 8;
break;
case IPV6_NEXT_HEADER_DESTINATION:
// IPv6ExtDestHandle();
nextProto = pExtHdr->nextProto;
extLen = (pExtHdr->extHdrLen + 1) * 8;
break;
case IPV6_NEXT_HEADER_ROUTING:
// IPv6ExtRoutingHandle();
nextProto = pExtHdr->nextProto;
extLen = (pExtHdr->extHdrLen + 1) * 8;
break;
case IPV6_NEXT_HEADER_FRAGMENT:
// IPv6ExtFragmentHandle();
nextProto = pExtHdr->nextProto;
extLen = 8; // The Fragment header length is fixed to 8 bytes.
break;
case IPV6_NEXT_HEADER_AUTHENTICATION:
// IPV6_NEXT_HEADER_ENCAPSULATION:
/*
TODO: Not support. For encryption issue.
*/
nextProto = 0xFF;
status = FALSE;
break;
default:
nextProto = 0xFF;
status = FALSE;
break;
}
*pProto = nextProto;
*pOffset += extLen;
//printk("%s(): nextProto = 0x%x!, offset=0x%x!\n", __FUNCTION__, nextProto, offset);
return status;
}
#endif // __IPV6_HDR_H_ //