[Feature Request] Add XDNS support (mtu and fm parameters)

[hippo2025]

Please add support for mtu and fm (finalmask) in the subscription link, so that it's possible to use the new XDNS finalmask

[2dust]

请给出文档，和配置的格式

[hippo2025]

Finalmask object documentation can be found here. As far as I understand, the plan is to pass finalmask's raw encoded JSON as fm parameter in the subscription link (see here). Also, there are two important parameters for XDNS, mtu and tti, the docs are here. Here you can find the newly added entries for mtu, tti and fm

[hippo2025]

So, this I believe is the correct XDNS client config:

{
      "protocol": "vless",
      "settings": {
        "address": "8.8.8.8",
        "port": 53,
        "id": "{{client_uuid}}",
        "encryption": "{{vlessenc_encryption_key}}",
        "flow": "xtls-rprx-vision"
      },
      "streamSettings": {
        "network": "kcp",
        "kcpSettings": {
          "mtu": 100,
          "tti": 50
        },
        "finalmask": {"udp": [
            {
                "type": "xdns",
                "settings": {
                  "domain": "{{your_domain}}"
                }
            }
        ]
      }
      }
    }

[Q7DF1]

ok I ‘ll handle it