34 lines
1.2 KiB
Markdown
34 lines
1.2 KiB
Markdown
Lab 6 Writeup
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=============
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My name: Catfood
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My SUNet ID: 998244353
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I collaborated with: An orange cat
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This lab took me about `1` hours to do.
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Program Structure and Design of the Router:
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这个就更没啥东西了，根本不需要理解什么东西，做一个 Longest-Preifx-Match 就结束了。
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两个接口：
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- `add_route`，就直接无脑塞进队列里面（如果不做什么 trie 优化的话）
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- 另一个 `route_one_datagram`，遍历前面生成的路由表，然后做匹配，也不用考虑什么默认路由之类的东西，找不到就扔掉。匹配完了减少 datagram 的 TTL，无论当前是0还是剪完了到0，都一起扔掉。最后记得判断 `next_hop` 是不是空的，如果是的，那么网卡发送的 `next_hop` 就换成当前数据报的目标 IP 地址就行了。
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Implementation Challenges:
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VSCode 的 IntelliSense 炸了两次，然后换了个 clangd。也就写了个巨复杂无比的 decltype 而已啊。
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Remaining Bugs:
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测试太简单了，我也不知道。
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- Optional: I had unexpected difficulty with: [describe]
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- Optional: I think you could make this lab better by: [describe]
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- Optional: I was surprised by: [describe]
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- Optional: I'm not sure about: [describe]
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