Packets: Difference between revisions

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(Logon packets for build 4125)
(Realmlist for Vanilla builds)
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====Server====
====Server====


==Builds 8606, 10505, 11159, 11403, 11723, 12340 (3.x)==
==Builds 8606, 10505, 11159, 11403, 11723, 12340 (2.4.3 to 3.x)==
==Unknown build==
==Unknown build==
===AuthLogonChallenge_Client===
===AuthLogonChallenge_Client===
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=Realm List=
=Realm List=
==SRealmHeader==
 
==Vanilla (4125 to 5875)==
 
===RealmList_C===
 
{|style="background:#FCFCFC; color:black"
|
! width="70" | Offset
! width="70" | Type
! width="100" | Name
! width="200"| Description
|-
|||0x0||uint8||cmd||OP code = CMD_REALM_LIST
|-
|||0x1||uint32||unknown||0x00 00 00 00
|-
|}
 
===RealmHeader_S===
 
The server answers with a packet composed of this header, as many RealmInfo_S,
and a RealmFooter_S.
 
{|style="background:#FCFCFC; color:black"
|
! width="70" | Offset
! width="70" | Type
! width="100" | Name
! width="200"| Description
|-
|||0x0||uint8||cmd||OP code = CMD_REALM_LIST
|-
|||0x1||uint16||size||size of the rest of packet, without these 3 first bytes
|-
|||0x3||uint32||unknown||0x00 00 00 00
|-
|||0x7||uint8||nRealm||Number of realms
|-
|}
 
The size value can be computed with the part of the header taken into account
plus the footer (5+2 bytes) and the size of every RealmInfo_S which is variable.
 
===RealmInfo_S===
 
{|style="background:#FCFCFC; color:black"
|
! width="110" | Offset
! width="60" | Type
! width="100" | Name
! width="200"| Description
|-
|||0x0||uint32||icon||icon near realm
|-
|||0x4||uint8||flags||
|-
|||0x5||string||name||Zero terminated string; name of the Realm
|-
|||0x5+name.length()||string||addr_port||Zero terminated string; address of the Realm ("ip:port")
|-
|||0x5+name.length()+addr_port.length()||float||population||1.6 -> population value. lower == lower population and vice versa
|-
|||0x9+name.length()+addr_port.length()||uint8||nCharacters||the Number of Chars you have on that server
|-
|||0xA+name.length()+addr_port.length()||uint8||TimeZone||
|-
|||0xB+name.length()+addr_port.length()||uint8||unknown
|-
|}
 
===RealmFooter_S ===
 
{|style="background:#FCFCFC; color:black"
|
! width="70" | Offset
! width="70" | Type
! width="100" | Name
! width="200"| Description
|-
|||0x0||uint16||unk||
|-
|}
 
==Unknown build==
 
===SRealmHeader===
 
{|style="background:#FCFCFC; color:black"
{|style="background:#FCFCFC; color:black"
|
|
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|}
|}


==SRealmInfo==
===SRealmInfo===
 
{|style="background:#FCFCFC; color:black"
{|style="background:#FCFCFC; color:black"
|
|

Revision as of 12:51, 9 December 2015

How the thing works(WIP!): At the beginning, the WoW Client sends an Authentication Packet to the Server. Then the Server checks if the Account is banned etc. and ,if not, sends an Packet containing information for the SRP-6 algorithm.

Logon

The authentication server (and the WoW client) utilizes the SRP-protocol for secure authentication.


Build 4125 (1.1.2)

AuthLogonChallenge_Client

Offset Type Name Description
0x0 uint8 Command
0x1 uint8 Error
0x2 uint16 Size
0x4 char[4] GameName 'WoW'
0x8 uint8[3] Version 0x00 0x08 0x00
0xB uint16 Build aka Revision
0xD char[4] Platform eg 'x86'
0x11 char[4] OS eg 'Win'
0x15 char[4] Country eg 'enUS'
0x19 uint32 WorldRegion_bias ?
0x1D uint32 IP Client-IP
0x21 uint8 AccountName_Length The length of the account name
0x22 char[] AccountName

AuthLogonChallenge_Server

Offset Type Name Description
0x1 uint8 cmd
0x2 uint8 error
0x3 uint8 unk
0x4 char[32] B SRP public server ephemeral
0x24 uint8 g_len 0x1
0x25 uint8 g SRP generator
0x26 uint8 N_len 0x20
0x27 char[32] N SRP modulus
0x47 char[32] s User's salt
0x47 char[16] s Some hash (not verified by client)

AuthLogonProof_Client

Offset Type Name Description
0x0 uint8 Command
0x01 uint8[32] A
0x21 uint8[20] M1
0x35 uint8[20] CRC_Hash
0x49 uint8 nKeys

AuthLogonProof_Server

Offset Type Name Description
0x0 uint8 Command
0x1 uint8 Error
0x2 uint8[20] M2
0x16 uint32 unk

Builds 5875, 6005, 6141 (1.12.x)

Constants

AuthLogonChallenge

Client

Server

AuthLogonProof

Client

Server

RealmList

Client

Server

Builds 8606, 10505, 11159, 11403, 11723, 12340 (2.4.3 to 3.x)

Unknown build

AuthLogonChallenge_Client

Offset Type Name Description
0x0 uint8 Command
0x1 uint8 Error
0x2 uint16 Size
0x4 char[4] GameName 'WoW'
0x8 uint8[3] Version 0x00 0x08 0x00
0xB uint16 Build aka Revision
0xD char[4] Platform eg 'x86'
0x11 char[4] OS eg 'Win'
0x15 char[4] Country eg 'enUS'
0x19 uint32 WorldRegion_bias ?
0x1D uint32 IP Client-IP
0x21 uint8 AccountName_Length The Lenght of the Account-Name
0x22 char[] AccountName

AuthLogonChallenge_Server

Offset Type Name Description
0x1 uint8 cmd
0x2 uint8 error
0x3 uint8 unk
0x4 char[32] B Public ephemeral value(SRP)
0x24 uint8 g_len 0x1
0x25 uint8 g A generator modulo N(SRP)
0x26 uint8 N_len 0x20
0x27 char[32] N A large safe prime (N = 2q+1, where q is prime). All arithmetic is done modulo N.(SRP)
0x47 char[32] s User's salt
0x67 char[16] unk2

AuthLogonProof_Client

Offset Type Name Description
0x0 uint8 Command
0x01 uint8[32] A
0x21 uint8[20] M1
0x35 uint8[20] CRC_Hash
0x49 uint8 nKeys
0x4A uint8 unk Added in 1.12.x client branch

AuthLogonProof_Server

Offset Type Name Description
0x0 uint8 Command
0x1 uint8 Error
0x2 uint8[20] M2
0x16 uint32 unk1
0x1A uint32 unk2
0x1E uint16 unk3

Logon Errors

Name Value
LOGIN_OK 0x00
LOGIN_FAILED 0x01
LOGIN_FAILED2 0x02
LOGIN_BANNED 0x03
LOGIN_UNKNOWN_ACCOUNT 0x04
LOGIN_UNKNOWN_ACCOUNT3 0x05
LOGIN_ALREADYONLINE 0x06
LOGIN_NOTIME 0x07
LOGIN_DBBUSY 0x08
LOGIN_BADVERSION 0x09
LOGIN_DOWNLOAD_FILE 0x0A
LOGIN_FAILED3 0x0B
LOGIN_SUSPENDED 0x0C
LOGIN_FAILED4 0x0D
LOGIN_CONNECTED 0x0E
LOGIN_PARENTALCONTROL 0x0F
LOGIN_LOCKED_ENFORCED 0x10

Realm List

Vanilla (4125 to 5875)

RealmList_C

Offset Type Name Description
0x0 uint8 cmd OP code = CMD_REALM_LIST
0x1 uint32 unknown 0x00 00 00 00

RealmHeader_S

The server answers with a packet composed of this header, as many RealmInfo_S, and a RealmFooter_S.

Offset Type Name Description
0x0 uint8 cmd OP code = CMD_REALM_LIST
0x1 uint16 size size of the rest of packet, without these 3 first bytes
0x3 uint32 unknown 0x00 00 00 00
0x7 uint8 nRealm Number of realms

The size value can be computed with the part of the header taken into account plus the footer (5+2 bytes) and the size of every RealmInfo_S which is variable.

RealmInfo_S

Offset Type Name Description
0x0 uint32 icon icon near realm
0x4 uint8 flags
0x5 string name Zero terminated string; name of the Realm
0x5+name.length() string addr_port Zero terminated string; address of the Realm ("ip:port")
0x5+name.length()+addr_port.length() float population 1.6 -> population value. lower == lower population and vice versa
0x9+name.length()+addr_port.length() uint8 nCharacters the Number of Chars you have on that server
0xA+name.length()+addr_port.length() uint8 TimeZone
0xB+name.length()+addr_port.length() uint8 unknown

RealmFooter_S

Offset Type Name Description
0x0 uint16 unk

Unknown build

SRealmHeader

Offset Type Name Description
0x0 uint8 cmd OP code = CMD_REALM_LIST
0x1 uint16 size size of the rest of packet, without this part
0x3 uint32 unknown 0x00 00 00 00
0x7 uint8 nRealm Number of realms

SRealmInfo

Offset Type Name Description
0x0 uint8 icon icon near realm
0x1 uint8 locked added in 2.0.x
0x2 uint8 color color of record
0x3 string name Zero terminated string; name of the Realm
0x3+name.length() string addr_port Zero terminated string;address of the Realm ("ip:port")
0x3+name.length()+addr_port.length() float population 1.6 -> population value. lower == lower population and vice versa
0x7+name.length()+addr_port.length() uint8 nCharacters the Number of Chars you have on that server
0x8+name.length()+addr_port.length() uint8 TimeZone
0x9+name.length()+addr_port.length() uint8 unknown

Char Creation

CMSG_CHAR_CREATE

Upon creating a character, the client sends CMSG_CHAR_CREATE to the server with all the details that makeup the newly created character.

Name Type Value
Name String Name of the Character
Race uint8
Class uint8
Gender uint8 0 - Male; 1 - Female
Skin uint8 I think it's CharSections.dbc
Face uint8 but I'm not sure about this
HairStyle uint8
HairColor uint8
FacialHair uint8
OutfitID uint8
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