34 lines
1.1 KiB
Markdown
34 lines
1.1 KiB
Markdown
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<h1>Packet</h1>
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<h2>Table of Contents</h2>
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- [Introduction](#introduction)
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- [Packet Header](#packet-header)
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***
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## Introduction
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A `Packet` is the largest communication object between established `peers`. All communication is done
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via these `packets`. The `packet` itself consists of a fixed size header, and a variable size body.
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The body contains a more specific type of data.
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## Packet Header
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The packet header has a fixed size of 4 bytes, with the following layout:
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```
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0 1 2 3
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0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
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+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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| Version | Type | Reserved |
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+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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```
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The first byte is used to indicate the version of the protocol. Currently, only version 1 is supported
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(0x01). The next byte is used to indicate the type of the body. `0x00` indicates a data packet, while
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`0x01` indicates a control packet. The remaining 16 bits are currently reserved, and should be set to
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all 0.
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