all: implement split upstreams

This commit introduces split upstreams feature, allowing to configure
what ip stack that ctrld will use to connect to upstream.
This commit is contained in:
Cuong Manh Le
2023-04-28 01:12:59 +07:00
committed by Cuong Manh Le
parent 5cad0d6be1
commit b267572b38
10 changed files with 286 additions and 68 deletions

View File

@@ -227,9 +227,27 @@ Value `0` means no timeout.
The protocol that `ctrld` will use to send DNS requests to upstream.
- Type: string
- required: yes
- Required: yes
- Valid values: `doh`, `doh3`, `dot`, `doq`, `legacy`, `os`
### ip_stack
Specifying what kind of ip stack that `ctrld` will use to connect to upstream.
- Type: string
- Required: no
- Valid values:
- `both`: using either ipv4 or ipv6.
- `v4`: only dial upstream via IPv4, never dial IPv6.
- `v6`: only dial upstream via IPv6, never dial IPv4.
- `split`:
- If `A` record is requested -> dial via ipv4.
- If `AAAA` or any other record is requested -> dial ipv6 (if available, otherwise ipv4)
If `ip_stack` is empty, or undefined:
- Default value is `both` for non-Control D resolvers.
- Default value is `split` for Control D resolvers.
## Network
The `[network]` section defines networks from which DNS queries can originate from. These are used in policies. You can define multiple networks, and each one can have multiple cidrs.