https://github.com/chizhg/rawsockets

A simplified TCP/IP stack implemented with raw socket
https://github.com/chizhg/rawsockets

raw-sockets tcp-ip

Last synced: over 1 year ago
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A simplified TCP/IP stack implemented with raw socket

• Host: GitHub
• URL: https://github.com/chizhg/rawsockets
• Owner: chizhg
• Created: 2017-05-02T00:38:53.000Z (about 9 years ago)
• Default Branch: master
• Last Pushed: 2017-05-02T00:53:44.000Z (about 9 years ago)
• Last Synced: 2025-03-20T14:21:40.307Z (over 1 year ago)
• Topics: raw-sockets, tcp-ip
• Language: Python
• Homepage:
• Size: 17.6 KB
• Stars: 6
• Watchers: 2
• Forks: 2
• Open Issues: 0
• Metadata Files:
  • Readme: README.md

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README

          
### Summary

The goal of this project is to take a URL on the command line and downloads the associated file.

The implementation includes protocols from Data-link Layer to Application Layer with the basic raw socket.

The main work is about building the Ethernet, IP and TCP headers in each packet.

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### Implementation of Each Layer

|Ethernet Header | IP Header |     TCP Header     | HTTP Data | Padding |

|       ---------|------     |------              |------     |------   |

|    14 byte     |  20 byte  |   20 byte or more  |           |add to 64|