Unit ICMPv6
From Ultibo.org
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Contents
Description
Ultibo ICMPv6 (Internet Control Message Protocol Version 6) unit
Constants
ICMPv6 protocol
ICMP6_PROTOCOL_* | Note: Some ICMPV6 definitions are in the Protocol or IPv6 modules | |
ICMP6_PROTOCOL_NAME = 'ICMPV6';
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ICMPv6 specific constants
ICMP6_* ICMP6_TIMEOUT = 0;
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Wait forever on a ICMP6 Read |
ICMP6_BUFFER_SIZE = 65536;
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ICMP6 Receive Buffer Size |
ICMP6_HEADER_SIZE = 5;
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SizeOf(TICMP6Header); |
ICMP6_PACKET_SIZE = 8;
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SizeOf(TICMP6Packet) |
Type definitions
ICMPv6 header
PICMP6Header = ^TICMP6Header;
TICMP6Header = packed record
| Note: Some ICMPv6 definitions are in the Protocol or IPv6 modules | |
ICMP6Type:Byte;
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ICMP_UNREACH etc |
Code:Byte;
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ICMP_UNREACH_NET,ICMP_UNREACH_PORT etc |
Checksum:Word;
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1s Compliment checksum of Structure |
CurrentHopLimit:Byte;
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ICMPv6 packet
PICMP6Packet = ^TICMP6Packet;
TICMP6Packet = record
| Note: 8 Bytes (Used by ICMP6Buffer) | |
Size:LongWord;
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LongWord to keep size even |
Next:PICMP6Packet;
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Followed by RemoteAddress (4 or 16 Bytes) |
Class definitions
ICMPv6 specific classes
TICMP6ProtocolTransport = class(TProtocolTransport)
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TICMP6Protocol = class(TNetworkProtocol)
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TICMP6Socket = class(TProtocolSocket)
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TICMP6Buffer = class(TSocketBuffer)
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Public variables
None defined
Function declarations
Initialization functions
procedure ICMP6Init;
Description: To be documented
| Note | None documented |
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ICMPv6 functions
function CheckICMP6(AFamily:Word; ABuffer:Pointer):Boolean;
Description: Verify that the packet is a valid ICMP6 packet
| Buffer | The complete packet including Transport header |
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function GetICMP6HeaderOffset(AFamily:Word; ABuffer:Pointer):Word;
Description: To be documented
| Buffer | The complete packet including Transport header |
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function GetICMP6HeaderLength(AFamily:Word; ABuffer:Pointer):Word;
Description: To be documented
| Buffer | The complete packet including Transport header |
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function GetICMP6DataOffset(AFamily:Word; ABuffer:Pointer):Word;
Description: To be documented
| Buffer | The complete packet including Transport header |
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function GetICMP6DataLength(AFamily:Word; ABuffer:Pointer):Word;
Description: To be documented
| Buffer | The complete packet including Transport header |
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function ChecksumICMP6(AFamily:Word; ABuffer:Pointer; AOffset,ALength:Word):Word;
Description: Checksum the ICMP6 Header on Send/Validate the Checksum on Receive
| Note | None documented |
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