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