Add VLESS route routing rules

[kavore]

Add support for routing based on VLESS route value extracted from UUID bytes 6-7 (requires corresponding sing-vmess change).

Changes

• Add VLESSRoute field to InboundContext
• Extract route from context in VLESS inbound handlers (TCP and UDP)
• Add vless_route (exact match) and vless_route_range (range match) rule options
• Add VLESSRouteItem and VLESSRouteRangeItem rule items

Example config

{
  "route": {
    "rules": [
      {
        "vless_route": [53, 443],
        "outbound": "proxy"
      },
      {
        "vless_route_range": ["1000:2000"],
        "outbound": "special"
      }
    ]
  }
}

Depends on: SagerNet/sing-vmess#11

[charliez0]

interesting but why need this lol

sing supports filter via username I remembered

[kavore]

interesting but why need this lol

sing supports filter via username I remembered

That can be useful when you have a subscription and want to apply different routing for a single user. For example, one link with route ID 0001 can send Gemini traffic through WARP, while another link with route ID 0002 sends Gemini traffic directly - all for the same user