update writeup for lab6

writeups/lab6.md

@@ -1,24 +1,28 @@
 Lab 6 Writeup
 =============
 
-My name: [your name here]
+My name: Catfood
 
-My SUNet ID: [your sunetid here]
+My SUNet ID: 998244353
 
-I collaborated with: [list sunetids here]
+I collaborated with: An orange cat
 
-I would like to thank/reward these classmates for their help: [list sunetids here]
-
-This lab took me about [n] hours to do. I [did/did not] attend the lab session.
+This lab took me about `1` hours to do.
 
 Program Structure and Design of the Router:
-[]
+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。
+
+两个接口：
+-  `add_route`，就直接无脑塞进队列里面（如果不做什么 trie 优化的话）
+-  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。
 
 Implementation Challenges:
-[]
+
+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。
 
 Remaining Bugs:
-[]
+
+测试太简单了，我也不知道。
 
 - Optional: I had unexpected difficulty with: [describe]