Packet7

This document describes packet headers and chunk headers in Teeworlds 0.7.0+.

All sizes in bits.

packet7_header:
    [ 2] reserved
    [ 1] flag_connless
    [ 1] flag_compression
    [ 1] flag_request_resend
    [ 1] flag_control
    [10] ack
    [ 8] num_chunks
    [32] token

    RRff ffAA  AAAA AAAA  nnnn nnnn
    TTTT TTTT  TTTT TTTT  TTTT TTTT  TTTT TTTT

packet7_header_connless:
    [ 2] reserved
    [ 1] flag_connless
    [ 1] flag_compression
    [ 1] flag_request_resend
    [ 1] flag_control
    [ 2] version
    [32] token
    [32] response_token

    RRff ffVV
    TTTT TTTT  TTTT TTTT  TTTT TTTT  TTTT TTTT
    rrrr rrrr  rrrr rrrr  rrrr rrrr  rrrr rrrr

NOTE: padding must be zeroed. If flag_connless is set, the other flags must not be set. flag_control implies !flag_compression.

NOTE: In packet7_header_connless, version must be set to 1.

chunk7_header_nonvital:
    [ 1] flag_resend
    [ 1] flag_vital
    [ 6] <----------
    [ 2] padding   |-- size
    [ 6] <----------

    FFss ssss  PPss ssss


chunk7_header_vital:
    [ 1] flag_resend
    [ 1] flag_vital
    [ 6] <----------
    [ 2] sequence  |-- size
    [ 6] <----------
    [ 8] sequence

    FFss ssss  SSss ssss  SSSS SSSS