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docs: add sock4/4a doc

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KujouRinka 2024-01-27 14:09:21 +08:00
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docs/Analyzers.md
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@ -269,6 +269,57 @@ Example for blocking Trojan connections:
expr: trojan != nil && trojan.yes
```
## SOCKS4/SOCKS4A
SOCKS4:
```json5
{
"socks4": {
"req": {
"cmd": 1, // 0x01: connect, 0x02: bind
"ip": "1.1.1.1",
"port": 443,
"user_id": "user_id"
},
"resp": {
"rep": 90, // 0x5A(90): granted
"ip": "1.1.1.1",
"port": 443
}
}
}
```
SOCKS4A:
```json5
{
"socks4": {
"req": {
"cmd": 1, // 0x01: connect, 0x02: bind
"ip": "0.0.0.1",
"port": 443,
"user_id": "user_id",
"hostname": "google.com"
},
"resp": {
"rep": 90, // 0x5A(90): granted
"ip": "0.0.0.1",
"port": 443
}
}
}
```
Example for blocking connections to `google.com:80`:
```yaml
- name: block baidu socks
action: block
expr: string(socks4?.req?.hostname) endsWith "bilibili.com" && socks4?.req?.port == 80
```
## SOCKS5
SOCKS5 without auth: