https://github.com/teru01/toytcp

Toy TCP implementation with Rust （技術書典10「Rustで始めるTCP自作入門」ソースコード）
https://github.com/teru01/toytcp

Last synced: 7 days ago
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Toy TCP implementation with Rust （技術書典10「Rustで始めるTCP自作入門」ソースコード）

• Host: GitHub
• URL: https://github.com/teru01/toytcp
• Owner: teru01
• License: mit
• Created: 2020-12-18T03:04:26.000Z (almost 4 years ago)
• Default Branch: master
• Last Pushed: 2020-12-27T14:27:14.000Z (almost 4 years ago)
• Last Synced: 2024-08-02T17:40:00.054Z (3 months ago)
• Language: Rust
• Homepage:
• Size: 7.03 MB
• Stars: 98
• Watchers: 4
• Forks: 7
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

        
# toytcp

toy tcp implementation

# setup

```

$ cd toytcp

$ chmod +x setup.sh

$ ./setup.sh

```

The following virtual network environment will be created. Only Linux is supported for now.

![](./network.png)

In order to avoid conflicts with the kernel's protocol stack, all packets with the RST flag are set to be discarded by iptables.

# build & run 

```

$ cargo build --examples

```

## echo-server & client

server

```

$ sudo ip netns exec host1 ./target/debug/examples/echoserver 10.0.0.1 30000

```

client

```

$ sudo ip netns exec host2 sudo ./target/debug/examples/echoclient 10.0.0.1 30000

```

## file upload

server

```

$ sudo ip netns exec host2 ./target/debug/examples/fileserver 10.0.1.1 40000 

```

client

```

$ sudo ip netns exec host1 ./target/debug/examples/fileclient 10.0.1.1 40000 sample.jpg

```

## simulate packet loss

### Discard 0.1% of packets

```

$ sudo ip netns exec router tc qdisc add dev router-veth2 root netem loss 0.1%

```

Remember to turn off the settings when you're done experimenting.

```

sudo ip netns exec host2 tc qdisc del dev host2-veth1 root

```