Unit IPv6

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Description


To be documented

Constants



IPv6 specific constants IP6_TRANSPORT_*
IP6_TRANSPORT_NAME = 'IPV6';  


IP6 constants IP6_HEADER_*
MIN_IP6_PACKET = 40; Not Counting Adapter Header
MAX_IP6_PACKET = 1500; Not Counting Adapter Header
 
MAX_FRAG_LIFE = 32000; Only wait 32 seconds for the rest of the packet
 
IP6_HEADER_SIZE = 40; SizeOf(TIP6Header); Does Not Allow for Extensions


IP6 extension header constants IP6_HEADER_*
See: https://en.wikipedia.org/wiki/List_of_IP_protocol_numbers
 
IP6_HEADER_HOP = 0; Hop-by-hop option header
IP6_HEADER_TCP = 6; Next header is a TCP segment (The payload)
IP6_HEADER_UDP = 17; Next header is a UDP message (The payload)
IP6_HEADER_IPV6 = 41; Next header is a IPv6 packet (IPv6 Encapsulation) (The payload)
IP6_HEADER_ROUTING = 43; Next header is a Routing header
IP6_HEADER_FRAGMENT = 44; Next header is a Fragmentation/reassembly header
IP6_HEADER_GRE = 47; Next header is a GRE header
IP6_HEADER_ESP = 50; Next header is a Encapsulating security payload
IP6_HEADER_AUTH = 51; Next header is a Authentication header
IP6_HEADER_ICMP = 58; Next header is a ICMP for IPv6 message
IP6_HEADER_NONE = 59; There is no next header (Do not process payload)
IP6_HEADER_DEST = 60; Next header is a Destination options header
IP6_HEADER_SCTP = 132; Next header is a SCTP message (The payload)
IP6_HEADER_MOBILITY = 135; Next header is a Mobility header
 
IP6_MTU = MAX_IP6_PACKET;  


Type definitions


To be documented

Public variables


To be documented

Function declarations



Initialization functions

procedure IP6Init;
Description: To be documented
Note None documented


IPv6 functions

function CheckIP6(ABuffer:Pointer):Boolean;
Description: Verify that the packet is a valid IP6 packet
Buffer Complete packet without Adapter header


function GetIP6Protocol(ABuffer:Pointer):Byte;
Description: To be documented
Buffer Complete packet including Transport header


function GetIP6HeaderOffset(ABuffer:Pointer):Word;
Description: Return Start of the IP6 Header (Start of Packet)
Buffer Complete packet including Transport header


function GetIP6HeaderLength(ABuffer:Pointer):Word;
Description: Return Size of IP6 Header (Including Options)
Buffer Complete packet including Transport header


function GetIP6DataOffset(ABuffer:Pointer):Word;
Description: Return Start of IP6 Packet Data (Length of IP6 Header)
Buffer Complete packet including Transport header


function GetIP6DataLength(ABuffer:Pointer):Word;
Description: Return Size of IP6 Packet Data (IP6 TotalLength - IP6 Header)
Buffer Complete packet including Transport header


function ChecksumIP6(ABuffer:Pointer; AOffset,ALength:Word):Word;
Description: Validate the IP6 Header and Options Checksum on Receive
Buffer Complete packet including Transport header


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