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proxy: autodetect traceroute args on startup (#69)

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This commit is contained in:
Yuhui Xu
2022-12-25 15:41:29 -06:00
committed by GitHub
parent 47c66b125c
commit 049775319b
4 changed files with 119 additions and 54 deletions
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README.md
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@@ -79,6 +79,8 @@ Configuration is handled by [viper](https://github.com/spf13/viper), any config
| name_filter | --name-filter | BIRDLG_NAME_FILTER | protocol names to hide in summary tables (RE2 syntax); defaults to none if not set |
| timeout | --time-out | BIRDLG_TIMEOUT | time before request timed out, in seconds; defaults to 120 if not set |
### Examples
Example: the following command starts the frontend with 2 BIRD nodes, with domain name "gigsgigscloud.dn42.lantian.pub" and "hostdare.dn42.lantian.pub", and proxies are running on port 8000 on both nodes.
```bash
@@ -122,16 +124,32 @@ Configuration can be set in:
Configuration is handled by [viper](https://github.com/spf13/viper), any config format supported by it can be used.
> Note: the config system is replaced with viper only recently (2022-07-08). If some config items do not work, please open an issue, and use commit [892a7bee22a1bb02d3b4da6d270c65b6e4e1321a](https://github.com/xddxdd/bird-lg-go/tree/892a7bee22a1bb02d3b4da6d270c65b6e4e1321a) (last version before config system replace) for the time being.
| Config Key | Parameter | Environment Variable | Description |
| ---------- | --------- | -------------------- | ----------- |
| allowed_ips | --allowed | ALLOWED_IPS | IPs allowed to access this proxy, separated by commas. Don't set to allow all IPs. (default "") |
| bird_socket | --bird | BIRD_SOCKET | socket file for bird, set either in parameter or environment variable BIRD_SOCKET (default "/var/run/bird/bird.ctl") |
| listen | --listen | BIRDLG_PROXY_PORT | listen address, set either in parameter or environment variable BIRDLG_PROXY_PORT(default "8000") |
| traceroute_bin | --traceroute_bin | BIRDLG_TRACEROUTE_BIN | traceroute binary file, set either in parameter or environment variable BIRDLG_TRACEROUTE_BIN(default "traceroute") |
| traceroute_bin | --traceroute_bin | BIRDLG_TRACEROUTE_BIN | traceroute binary file, set either in parameter or environment variable BIRDLG_TRACEROUTE_BIN |
| traceroute_flags | --traceroute_flags | BIRDLG_TRACEROUTE_FLAGS | traceroute flags, repeat for multiple flags. |
| traceroute_raw | --traceroute_raw | BIRDLG_TRACEROUTE_RAW | whether to display traceroute outputs raw (default false) |
### Traceroute Binary Autodetection
If `traceroute_bin` or `traceroute_flags` is not set, then on startup, the proxy will try to `traceroute 127.0.0.1` with different traceroute binaries and arguments, in order to use the most optimized setting available, while maintaining compatibility with multiple variants of traceroute binaries.
Traceroute binaries will be autodetected in the following order:
1. If `traceroute_bin` is set:
1. `[traceroute_bin] -q1 -N32 -w1 127.0.0.1` (Corresponds to Traceroute on Debian)
2. `[traceroute_bin] -q1 -w1 127.0.0.1` (Corresponds to Traceroute on FreeBSD)
3. `[traceroute_bin] 127.0.0.1` (Corresponds to Busybox Traceroute)
2. `mtr -w -c1 -Z1 -G1 -b 127.0.0.1` (MTR)
3. `traceroute -q1 -N32 -w1 127.0.0.1` (Corresponds to Traceroute on Debian)
4. `traceroute -q1 -w1 127.0.0.1` (Corresponds to Traceroute on FreeBSD)
5. `traceroute 127.0.0.1` (Corresponds to Busybox Traceroute)
### Examples
Example: start proxy with default configuration, should work "out of the box" on Debian 9 with BIRDv1:
```bash