diff options
Diffstat (limited to 'tap-win32/proto.h')
| -rwxr-xr-x | tap-win32/proto.h | 60 |
1 files changed, 60 insertions, 0 deletions
diff --git a/tap-win32/proto.h b/tap-win32/proto.h index 0390b08..894a37f 100755 --- a/tap-win32/proto.h +++ b/tap-win32/proto.h @@ -29,9 +29,11 @@ #pragma pack(1) #define IP_HEADER_SIZE 20 +#define IPV6_HEADER_SIZE 40 typedef unsigned char MACADDR [6]; typedef unsigned long IPADDR; +typedef unsigned char IPV6ADDR [16]; //----------------- // Ethernet address @@ -55,6 +57,7 @@ typedef struct MACADDR src; /* source ether addr */ # define ETH_P_IP 0x0800 /* IPv4 protocol */ +# define ETH_P_IPV6 0x86DD /* IPv6 protocol */ # define ETH_P_ARP 0x0806 /* ARP protocol */ USHORT proto; /* packet type ID field */ } ETH_HEADER, *PETH_HEADER; @@ -161,4 +164,61 @@ typedef struct { #define TCPOPT_MAXSEG 2 #define TCPOLEN_MAXSEG 4 +//------------ +// IPv6 Header +//------------ + +typedef struct { + UCHAR version_prio; + UCHAR flow_lbl[3]; + USHORT payload_len; +# define IPPROTO_ICMPV6 0x3a /* ICMP protocol v6 */ + UCHAR nexthdr; + UCHAR hop_limit; + IPV6ADDR saddr; + IPV6ADDR daddr; +} IPV6HDR; + +//-------------------------------------------- +// IPCMPv6 NS/NA Packets (RFC4443 and RFC4861) +//-------------------------------------------- + +// Neighbor Solictiation - RFC 4861, 4.3 +// (this is just the ICMPv6 part of the packet) +typedef struct { + UCHAR type; +# define ICMPV6_TYPE_NS 135 // neighbour solicitation + UCHAR code; +# define ICMPV6_CODE_0 0 // no specific sub-code for NS/NA + USHORT checksum; + ULONG reserved; + IPV6ADDR target_addr; +} ICMPV6_NS; + +// Neighbor Advertisement - RFC 4861, 4.4 + 4.6/4.6.1 +// (this is just the ICMPv6 payload) +typedef struct { + UCHAR type; +# define ICMPV6_TYPE_NA 136 // neighbour advertisement + UCHAR code; +# define ICMPV6_CODE_0 0 // no specific sub-code for NS/NA + USHORT checksum; + UCHAR rso_bits; // Router(0), Solicited(2), Ovrrd(4) + UCHAR reserved[3]; + IPV6ADDR target_addr; +// always include "Target Link-layer Address" option (RFC 4861 4.6.1) + UCHAR opt_type; +#define ICMPV6_OPTION_TLLA 2 + UCHAR opt_length; +#define ICMPV6_LENGTH_TLLA 1 // multiplied by 8 -> 1 = 8 bytes + MACADDR target_macaddr; +} ICMPV6_NA; + +// this is the complete packet with Ethernet and IPv6 headers +typedef struct { + ETH_HEADER eth; + IPV6HDR ipv6; + ICMPV6_NA icmpv6; +} ICMPV6_NA_PKT; + #pragma pack() |