Difference between revisions of "Unit ICMPv6"

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''To be documented''
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'''ICMPv6 header'''
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<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial;">
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<code>PICMP6Header = ^TICMP6Header;</code>
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<code>TICMP6Header = packed record</code>
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<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
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{| class="wikitable" style="font-size: 14px; background: white;"
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|-
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|colspan="2"|Note: Some ICMPv6 definitions are in the Protocol or IPv6 modules
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|-
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| <code>ICMP6Type:Byte;</code>
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| ICMP_UNREACH etc
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|-
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| <code>Code:Byte;</code>
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| ICMP_UNREACH_NET,ICMP_UNREACH_PORT etc
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|-
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| <code>Checksum:Word;</code>
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| 1s Compliment checksum of Structure
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|-
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| <code>CurrentHopLimit:Byte;</code>
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| &nbsp;
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|-
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|}
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</div></div>
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'''ICMPv6 packet'''
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<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial;">
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<code>PICMP6Packet = ^TICMP6Packet;</code>
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<code>TICMP6Packet = record</code>
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<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
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{| class="wikitable" style="font-size: 14px; background: white;"
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|-
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|colspan="2"|Note: 8 Bytes (Used by ICMP6Buffer)
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|-
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| <code>Size:LongWord;</code>
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| LongWord to keep size even
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|-
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| <code>Next:PICMP6Packet;</code>
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| Followed by RemoteAddress (4 or 16 Bytes)
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|-
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|}
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</div></div>
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<br />
  
 
=== Class definitions ===
 
=== Class definitions ===

Revision as of 00:28, 20 January 2017

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Description


Ultibo ICMPv6 (Internet Control Message Protocol version 6) unit

To be documented

Constants



ICMPv6 specific constants ICMP6_PROTOCOL_*
Note: Some ICMPV6 definitions are in the Protocol or IPv6 modules
 
ICMP6_PROTOCOL_NAME = 'ICMPV6';  


ICMPv6 constants ICMP6_*
ICMP6_TIMEOUT = 0; Wait forever on a ICMP6 Read
ICMP6_BUFFER_SIZE = 65536; ICMP6 Receive Buffer Size
 
ICMP6_HEADER_SIZE = 5; SizeOf(TICMP6Header);
 
ICMP6_PACKET_SIZE = 8; SizeOf(TICMP6Packet)


Type definitions



ICMPv6 header

PICMP6Header = ^TICMP6Header;

TICMP6Header = packed record

Note: Some ICMPv6 definitions are in the Protocol or IPv6 modules
ICMP6Type:Byte; ICMP_UNREACH etc
Code:Byte; ICMP_UNREACH_NET,ICMP_UNREACH_PORT etc
Checksum:Word; 1s Compliment checksum of Structure
CurrentHopLimit:Byte;  

ICMPv6 packet

PICMP6Packet = ^TICMP6Packet;

TICMP6Packet = record

Note: 8 Bytes (Used by ICMP6Buffer)
Size:LongWord; LongWord to keep size even
Next:PICMP6Packet; Followed by RemoteAddress (4 or 16 Bytes)


Class definitions


To be documented

Public variables


None defined

Function declarations



Initialization functions

procedure ICMP6Init;
Description: To be documented
Note None documented


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


function GetICMP6HeaderOffset(AFamily:Word; ABuffer:Pointer):Word;
Description: To be documented
Buffer The complete packet including Transport header


function GetICMP6HeaderLength(AFamily:Word; ABuffer:Pointer):Word;
Description: To be documented
Buffer The complete packet including Transport header


function GetICMP6DataOffset(AFamily:Word; ABuffer:Pointer):Word;
Description: To be documented
Buffer The complete packet including Transport header


function GetICMP6DataLength(AFamily:Word; ABuffer:Pointer):Word;
Description: To be documented
Buffer The complete packet including Transport header


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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