Connecting to a teamspeak server

Client : requesting a connection (0xf4be0300)

NB : When a client requests a connection to a server, he has not been given a public or private ID by the server, so those fields are nulled in the header.

Size	Format	Description
4 bytes	32 bit integer (hexa)	Checksum
1 byte	unsigned 8 bit integer	Size of the client field
29 bytes	29 characters string	Name of the client (ex : Freespeak)
1 byte	unsigned 8 bit integer	Size of the machine field
29 bytes	29 characters string	Description of the machine (ex : same as uname on linux)
4 bytes	32 bit integer	Empty (0×00000000)
4 bytes	32 bit integer	Checksum
1 byte	8 bit boolean integer (0/1)	Assign nick ???
1 byte	8 bit boolean integer (0/1)	Always ??? (edit by : Spac3 : Packet sniff proves this field wrong, not a bool. Packet hex val “02”)
1 byte	unsigned 8 bit integer	Size of the login field
29 bytes	29 characters string	Login of the client
1 byte	unsigned 8 bit integer	Size of the password field
29 bytes	29 characters string	Password of the client
1 byte	unsigned 8 bit integer	Size of the nickname field
29 bytes	29 characters string	Nickname of the client

Server : accepting the connection and sending server information (0xf4be0400)

Size	Format	Description
4 bytes	32 bit integer	Checksum
1 byte	8 bit integer	Size of the server name
29 bytes	29 characters string	Name of the server
1 byte	8 bit integer	Size of the server machine information
29 bytes	29 characters string	Machine information of the server
8 bytes	4x 16 bit unsigned integers	Server version, as 4 16 bit integers (ex 2.0.20.1)
4 bytes	32 bit integer	Error code (1 = OK, 2 = Server offline)
2 bytes	16 bit bitfield	Available codecs ( 1 << codec1 OR 1 << codec2 OR … )
7 bytes	???	???
9 bytes	bit field	Server privileges (Server Admin group)
9 bytes	bit field	Server privileges (Channel Admin group)
9 bytes	bit field	Server privileges (Operator group)
9 bytes	bit field	Server privileges (Voice group)
9 bytes	bit field	Server privileges (Registered group)
9 bytes	bit field	Server privileges (Anonymous group)
17 bytes	???	???
4 bytes	32 bit integer (hexa)	Private ID assigned to the client
4 bytes	32 bit integer (hexa)	Public ID assigned to the client
1 byte	8 bit integer	Size of the welcome message
255 bytes	255 characters string	Welcome message

Client : acknowledging the connection acceptance (0xf0be0500)

Size	Format	Description
4 bytes	32 bit integer	Empty (0×00000000)
4 bytes	32 bit integer	Checksum
96 bytes	Data	Unknown (can be left blank)

Server : Rejecting a connection