test

.gitignore

-/.idea/
\ No newline at end of file
+/.idea/
+/node_modules/

config.json → config/config.json

 {
   "server_address": "127.0.0.1",
-  "server_port": 9999,
-  "port": 9998,
+  "server_port": 500,
+  "port": 495,
   "timeout": 10,
-  "interval": 1000
+  "interval": 1000,
+  "table": 1,
+  "proto": 250
 }

config/routers.json

+[
+  {
+    "id": 1,
+    "address": "10.198.0.1",
+    "interface": "mc-yangtze",
+    "subnets": [
+      "192.168.1.0/24",
+      "10.198.1.0/24",
+      "10.198.2.0/24"
+    ]
+  },
+  {
+    "id": 3,
+    "address": "10.198.0.3",
+    "interface": "mc-south",
+    "subnets": [
+      "10.198.3.0/24"
+    ]
+  },
+  {
+    "id": 7,
+    "address": "10.198.0.7",
+    "interface": "mc-fractal",
+    "subnets": [
+      "10.198.7.0/24"
+    ]
+  },
+  {
+    "id": 9,
+    "address": "10.198.0.9",
+    "interface": "mc-marcia",
+    "subnets": [
+      "10.198.9.0/24"
+    ]
+  }
+]

package-lock.json

 {
-  "name": "railgun-network-client",
-  "version": "1.0.0",
+  "name": "railgun-routing-client",
+  "version": "0.0.1",
   "lockfileVersion": 2,
   "requires": true,
   "packages": {
     "": {
-      "name": "railgun-network-client",
-      "version": "1.0.0",
+      "version": "0.0.1",
       "devDependencies": {
-        "@types/node": "^14.14.14",
-        "ts-node": "^9.1.1"
+        "@types/node": "^16.6.1",
+        "ts-node": "^10.2.0",
+        "typescript": "^4.3.5"
       }
     },
+    "node_modules/@cspotcode/source-map-consumer": {
+      "version": "0.8.0",
+      "resolved": "https://registry.npmjs.org/@cspotcode/source-map-consumer/-/source-map-consumer-0.8.0.tgz",
+      "integrity": "sha512-41qniHzTU8yAGbCp04ohlmSrZf8bkf/iJsl3V0dRGsQN/5GFfx+LbCSsCpp2gqrqjTVg/K6O8ycoV35JIwAzAg==",
+      "dev": true,
+      "engines": {
+        "node": ">= 12"
+      }
+    },
+    "node_modules/@cspotcode/source-map-support": {
+      "version": "0.6.1",
+      "resolved": "https://registry.npmjs.org/@cspotcode/source-map-support/-/source-map-support-0.6.1.tgz",
+      "integrity": "sha512-DX3Z+T5dt1ockmPdobJS/FAsQPW4V4SrWEhD2iYQT2Cb2tQsiMnYxrcUH9By/Z3B+v0S5LMBkQtV/XOBbpLEOg==",
+      "dev": true,
+      "dependencies": {
+        "@cspotcode/source-map-consumer": "0.8.0"
+      },
+      "engines": {
+        "node": ">=12"
+      }
+    },
+    "node_modules/@tsconfig/node10": {
+      "version": "1.0.8",
+      "resolved": "https://registry.npmjs.org/@tsconfig/node10/-/node10-1.0.8.tgz",
+      "integrity": "sha512-6XFfSQmMgq0CFLY1MslA/CPUfhIL919M1rMsa5lP2P097N2Wd1sSX0tx1u4olM16fLNhtHZpRhedZJphNJqmZg==",
+      "dev": true
+    },
+    "node_modules/@tsconfig/node12": {
+      "version": "1.0.9",
+      "resolved": "https://registry.npmjs.org/@tsconfig/node12/-/node12-1.0.9.tgz",
+      "integrity": "sha512-/yBMcem+fbvhSREH+s14YJi18sp7J9jpuhYByADT2rypfajMZZN4WQ6zBGgBKp53NKmqI36wFYDb3yaMPurITw==",
+      "dev": true
+    },
+    "node_modules/@tsconfig/node14": {
+      "version": "1.0.1",
+      "resolved": "https://registry.npmjs.org/@tsconfig/node14/-/node14-1.0.1.tgz",
+      "integrity": "sha512-509r2+yARFfHHE7T6Puu2jjkoycftovhXRqW328PDXTVGKihlb1P8Z9mMZH04ebyajfRY7dedfGynlrFHJUQCg==",
+      "dev": true
+    },
+    "node_modules/@tsconfig/node16": {
+      "version": "1.0.2",
+      "resolved": "https://registry.npmjs.org/@tsconfig/node16/-/node16-1.0.2.tgz",
+      "integrity": "sha512-eZxlbI8GZscaGS7kkc/trHTT5xgrjH3/1n2JDwusC9iahPKWMRvRjJSAN5mCXviuTGQ/lHnhvv8Q1YTpnfz9gA==",
+      "dev": true
+    },
     "node_modules/@types/node": {
-      "version": "14.14.14",
-      "resolved": "https://registry.npmjs.org/@types/node/-/node-14.14.14.tgz",
-      "integrity": "sha512-UHnOPWVWV1z+VV8k6L1HhG7UbGBgIdghqF3l9Ny9ApPghbjICXkUJSd/b9gOgQfjM1r+37cipdw/HJ3F6ICEnQ==",
+      "version": "16.6.1",
+      "resolved": "https://registry.npmjs.org/@types/node/-/node-16.6.1.tgz",
+      "integrity": "sha512-Sr7BhXEAer9xyGuCN3Ek9eg9xPviCF2gfu9kTfuU2HkTVAMYSDeX40fvpmo72n5nansg3nsBjuQBrsS28r+NUw==",
       "dev": true
     },
+    "node_modules/acorn": {
+      "version": "8.4.1",
+      "resolved": "https://registry.npmjs.org/acorn/-/acorn-8.4.1.tgz",
+      "integrity": "sha512-asabaBSkEKosYKMITunzX177CXxQ4Q8BSSzMTKD+FefUhipQC70gfW5SiUDhYQ3vk8G+81HqQk7Fv9OXwwn9KA==",
+      "dev": true,
+      "bin": {
+        "acorn": "bin/acorn"
+      },
+      "engines": {
+        "node": ">=0.4.0"
+      }
+    },
+    "node_modules/acorn-walk": {
+      "version": "8.1.1",
+      "resolved": "https://registry.npmjs.org/acorn-walk/-/acorn-walk-8.1.1.tgz",
+      "integrity": "sha512-FbJdceMlPHEAWJOILDk1fXD8lnTlEIWFkqtfk+MvmL5q/qlHfN7GEHcsFZWt/Tea9jRNPWUZG4G976nqAAmU9w==",
+      "dev": true,
+      "engines": {
+        "node": ">=0.4.0"
+      }
+    },
     "node_modules/arg": {
       "version": "4.1.3",
       "resolved": "https://registry.npmjs.org/arg/-/arg-4.1.3.tgz",
       "integrity": "sha512-58S9QDqG0Xx27YwPSt9fJxivjYl432YCwfDMfZ+71RAqUrZef7LrKQZ3LHLOwCS4FLNBplP533Zx895SeOCHvA==",
       "dev": true
     },
-    "node_modules/buffer-from": {
-      "version": "1.1.1",
-      "resolved": "https://registry.npmjs.org/buffer-from/-/buffer-from-1.1.1.tgz",
-      "integrity": "sha512-MQcXEUbCKtEo7bhqEs6560Hyd4XaovZlO/k9V3hjVUF/zwW7KBVdSK4gIt/bzwS9MbR5qob+F5jusZsb0YQK2A==",
-      "dev": true
-    },
     "node_modules/create-require": {
       "version": "1.1.1",
       "resolved": "https://registry.npmjs.org/create-require/-/create-require-1.1.1.tgz",
@@ -51,57 +111,55 @@
       "integrity": "sha512-s8UhlNe7vPKomQhC1qFelMokr/Sc3AgNbso3n74mVPA5LTZwkB9NlXf4XPamLxJE8h0gh73rM94xvwRT2CVInw==",
       "dev": true
     },
-    "node_modules/source-map": {
-      "version": "0.6.1",
-      "resolved": "https://registry.npmjs.org/source-map/-/source-map-0.6.1.tgz",
-      "integrity": "sha512-UjgapumWlbMhkBgzT7Ykc5YXUT46F0iKu8SGXq0bcwP5dz/h0Plj6enJqjz1Zbq2l5WaqYnrVbwWOWMyF3F47g==",
-      "dev": true,
-      "engines": {
-        "node": ">=0.10.0"
-      }
-    },
-    "node_modules/source-map-support": {
-      "version": "0.5.19",
-      "resolved": "https://registry.npmjs.org/source-map-support/-/source-map-support-0.5.19.tgz",
-      "integrity": "sha512-Wonm7zOCIJzBGQdB+thsPar0kYuCIzYvxZwlBa87yi/Mdjv7Tip2cyVbLj5o0cFPN4EVkuTwb3GDDyUx2DGnGw==",
-      "dev": true,
-      "dependencies": {
-        "buffer-from": "^1.0.0",
-        "source-map": "^0.6.0"
-      }
-    },
     "node_modules/ts-node": {
-      "version": "9.1.1",
-      "resolved": "https://registry.npmjs.org/ts-node/-/ts-node-9.1.1.tgz",
-      "integrity": "sha512-hPlt7ZACERQGf03M253ytLY3dHbGNGrAq9qIHWUY9XHYl1z7wYngSr3OQ5xmui8o2AaxsONxIzjafLUiWBo1Fg==",
+      "version": "10.2.0",
+      "resolved": "https://registry.npmjs.org/ts-node/-/ts-node-10.2.0.tgz",
+      "integrity": "sha512-FstYHtQz6isj8rBtYMN4bZdnXN1vq4HCbqn9vdNQcInRqtB86PePJQIxE6es0PhxKWhj2PHuwbG40H+bxkZPmg==",
       "dev": true,
       "dependencies": {
+        "@cspotcode/source-map-support": "0.6.1",
+        "@tsconfig/node10": "^1.0.7",
+        "@tsconfig/node12": "^1.0.7",
+        "@tsconfig/node14": "^1.0.0",
+        "@tsconfig/node16": "^1.0.2",
+        "acorn": "^8.4.1",
+        "acorn-walk": "^8.1.1",
         "arg": "^4.1.0",
         "create-require": "^1.1.0",
         "diff": "^4.0.1",
         "make-error": "^1.1.1",
-        "source-map-support": "^0.5.17",
         "yn": "3.1.1"
       },
       "bin": {
         "ts-node": "dist/bin.js",
+        "ts-node-cwd": "dist/bin-cwd.js",
         "ts-node-script": "dist/bin-script.js",
         "ts-node-transpile-only": "dist/bin-transpile.js",
         "ts-script": "dist/bin-script-deprecated.js"
       },
       "engines": {
-        "node": ">=10.0.0"
+        "node": ">=12.0.0"
       },
       "peerDependencies": {
+        "@swc/core": ">=1.2.50",
+        "@swc/wasm": ">=1.2.50",
+        "@types/node": "*",
         "typescript": ">=2.7"
+      },
+      "peerDependenciesMeta": {
+        "@swc/core": {
+          "optional": true
+        },
+        "@swc/wasm": {
+          "optional": true
+        }
       }
     },
     "node_modules/typescript": {
-      "version": "4.1.3",
-      "resolved": "https://registry.npmjs.org/typescript/-/typescript-4.1.3.tgz",
-      "integrity": "sha512-B3ZIOf1IKeH2ixgHhj6la6xdwR9QrLC5d1VKeCSY4tvkqhF2eqd9O7txNlS0PO3GrBAFIdr3L1ndNwteUbZLYg==",
+      "version": "4.3.5",
+      "resolved": "https://registry.npmjs.org/typescript/-/typescript-4.3.5.tgz",
+      "integrity": "sha512-DqQgihaQ9cUrskJo9kIyW/+g0Vxsk8cDtZ52a3NGh0YNTfpUSArXSohyUGnvbPazEPLu398C0UxmKSOrPumUzA==",
       "dev": true,
-      "peer": true,
       "bin": {
         "tsc": "bin/tsc",
         "tsserver": "bin/tsserver"
@@ -121,10 +179,61 @@
     }
   },
   "dependencies": {
+    "@cspotcode/source-map-consumer": {
+      "version": "0.8.0",
+      "resolved": "https://registry.npmjs.org/@cspotcode/source-map-consumer/-/source-map-consumer-0.8.0.tgz",
+      "integrity": "sha512-41qniHzTU8yAGbCp04ohlmSrZf8bkf/iJsl3V0dRGsQN/5GFfx+LbCSsCpp2gqrqjTVg/K6O8ycoV35JIwAzAg==",
+      "dev": true
+    },
+    "@cspotcode/source-map-support": {
+      "version": "0.6.1",
+      "resolved": "https://registry.npmjs.org/@cspotcode/source-map-support/-/source-map-support-0.6.1.tgz",
+      "integrity": "sha512-DX3Z+T5dt1ockmPdobJS/FAsQPW4V4SrWEhD2iYQT2Cb2tQsiMnYxrcUH9By/Z3B+v0S5LMBkQtV/XOBbpLEOg==",
+      "dev": true,
+      "requires": {
+        "@cspotcode/source-map-consumer": "0.8.0"
+      }
+    },
+    "@tsconfig/node10": {
+      "version": "1.0.8",
+      "resolved": "https://registry.npmjs.org/@tsconfig/node10/-/node10-1.0.8.tgz",
+      "integrity": "sha512-6XFfSQmMgq0CFLY1MslA/CPUfhIL919M1rMsa5lP2P097N2Wd1sSX0tx1u4olM16fLNhtHZpRhedZJphNJqmZg==",
+      "dev": true
+    },
+    "@tsconfig/node12": {
+      "version": "1.0.9",
+      "resolved": "https://registry.npmjs.org/@tsconfig/node12/-/node12-1.0.9.tgz",
+      "integrity": "sha512-/yBMcem+fbvhSREH+s14YJi18sp7J9jpuhYByADT2rypfajMZZN4WQ6zBGgBKp53NKmqI36wFYDb3yaMPurITw==",
+      "dev": true
+    },
+    "@tsconfig/node14": {
+      "version": "1.0.1",
+      "resolved": "https://registry.npmjs.org/@tsconfig/node14/-/node14-1.0.1.tgz",
+      "integrity": "sha512-509r2+yARFfHHE7T6Puu2jjkoycftovhXRqW328PDXTVGKihlb1P8Z9mMZH04ebyajfRY7dedfGynlrFHJUQCg==",
+      "dev": true
+    },
+    "@tsconfig/node16": {
+      "version": "1.0.2",
+      "resolved": "https://registry.npmjs.org/@tsconfig/node16/-/node16-1.0.2.tgz",
+      "integrity": "sha512-eZxlbI8GZscaGS7kkc/trHTT5xgrjH3/1n2JDwusC9iahPKWMRvRjJSAN5mCXviuTGQ/lHnhvv8Q1YTpnfz9gA==",
+      "dev": true
+    },
     "@types/node": {
-      "version": "14.14.14",
-      "resolved": "https://registry.npmjs.org/@types/node/-/node-14.14.14.tgz",
-      "integrity": "sha512-UHnOPWVWV1z+VV8k6L1HhG7UbGBgIdghqF3l9Ny9ApPghbjICXkUJSd/b9gOgQfjM1r+37cipdw/HJ3F6ICEnQ==",
+      "version": "16.6.1",
+      "resolved": "https://registry.npmjs.org/@types/node/-/node-16.6.1.tgz",
+      "integrity": "sha512-Sr7BhXEAer9xyGuCN3Ek9eg9xPviCF2gfu9kTfuU2HkTVAMYSDeX40fvpmo72n5nansg3nsBjuQBrsS28r+NUw==",
+      "dev": true
+    },
+    "acorn": {
+      "version": "8.4.1",
+      "resolved": "https://registry.npmjs.org/acorn/-/acorn-8.4.1.tgz",
+      "integrity": "sha512-asabaBSkEKosYKMITunzX177CXxQ4Q8BSSzMTKD+FefUhipQC70gfW5SiUDhYQ3vk8G+81HqQk7Fv9OXwwn9KA==",
+      "dev": true
+    },
+    "acorn-walk": {
+      "version": "8.1.1",
+      "resolved": "https://registry.npmjs.org/acorn-walk/-/acorn-walk-8.1.1.tgz",
+      "integrity": "sha512-FbJdceMlPHEAWJOILDk1fXD8lnTlEIWFkqtfk+MvmL5q/qlHfN7GEHcsFZWt/Tea9jRNPWUZG4G976nqAAmU9w==",
       "dev": true
     },
     "arg": {
@@ -133,12 +242,6 @@
       "integrity": "sha512-58S9QDqG0Xx27YwPSt9fJxivjYl432YCwfDMfZ+71RAqUrZef7LrKQZ3LHLOwCS4FLNBplP533Zx895SeOCHvA==",
       "dev": true
     },
-    "buffer-from": {
-      "version": "1.1.1",
-      "resolved": "https://registry.npmjs.org/buffer-from/-/buffer-from-1.1.1.tgz",
-      "integrity": "sha512-MQcXEUbCKtEo7bhqEs6560Hyd4XaovZlO/k9V3hjVUF/zwW7KBVdSK4gIt/bzwS9MbR5qob+F5jusZsb0YQK2A==",
-      "dev": true
-    },
     "create-require": {
       "version": "1.1.1",
       "resolved": "https://registry.npmjs.org/create-require/-/create-require-1.1.1.tgz",
@@ -157,42 +260,31 @@
       "integrity": "sha512-s8UhlNe7vPKomQhC1qFelMokr/Sc3AgNbso3n74mVPA5LTZwkB9NlXf4XPamLxJE8h0gh73rM94xvwRT2CVInw==",
       "dev": true
     },
-    "source-map": {
-      "version": "0.6.1",
-      "resolved": "https://registry.npmjs.org/source-map/-/source-map-0.6.1.tgz",
-      "integrity": "sha512-UjgapumWlbMhkBgzT7Ykc5YXUT46F0iKu8SGXq0bcwP5dz/h0Plj6enJqjz1Zbq2l5WaqYnrVbwWOWMyF3F47g==",
-      "dev": true
-    },
-    "source-map-support": {
-      "version": "0.5.19",
-      "resolved": "https://registry.npmjs.org/source-map-support/-/source-map-support-0.5.19.tgz",
-      "integrity": "sha512-Wonm7zOCIJzBGQdB+thsPar0kYuCIzYvxZwlBa87yi/Mdjv7Tip2cyVbLj5o0cFPN4EVkuTwb3GDDyUx2DGnGw==",
-      "dev": true,
-      "requires": {
-        "buffer-from": "^1.0.0",
-        "source-map": "^0.6.0"
-      }
-    },
     "ts-node": {
-      "version": "9.1.1",
-      "resolved": "https://registry.npmjs.org/ts-node/-/ts-node-9.1.1.tgz",
-      "integrity": "sha512-hPlt7ZACERQGf03M253ytLY3dHbGNGrAq9qIHWUY9XHYl1z7wYngSr3OQ5xmui8o2AaxsONxIzjafLUiWBo1Fg==",
+      "version": "10.2.0",
+      "resolved": "https://registry.npmjs.org/ts-node/-/ts-node-10.2.0.tgz",
+      "integrity": "sha512-FstYHtQz6isj8rBtYMN4bZdnXN1vq4HCbqn9vdNQcInRqtB86PePJQIxE6es0PhxKWhj2PHuwbG40H+bxkZPmg==",
       "dev": true,
       "requires": {
+        "@cspotcode/source-map-support": "0.6.1",
+        "@tsconfig/node10": "^1.0.7",
+        "@tsconfig/node12": "^1.0.7",
+        "@tsconfig/node14": "^1.0.0",
+        "@tsconfig/node16": "^1.0.2",
+        "acorn": "^8.4.1",
+        "acorn-walk": "^8.1.1",
         "arg": "^4.1.0",
         "create-require": "^1.1.0",
         "diff": "^4.0.1",
         "make-error": "^1.1.1",
-        "source-map-support": "^0.5.17",
         "yn": "3.1.1"
       }
     },
     "typescript": {
-      "version": "4.1.3",
-      "resolved": "https://registry.npmjs.org/typescript/-/typescript-4.1.3.tgz",
-      "integrity": "sha512-B3ZIOf1IKeH2ixgHhj6la6xdwR9QrLC5d1VKeCSY4tvkqhF2eqd9O7txNlS0PO3GrBAFIdr3L1ndNwteUbZLYg==",
-      "dev": true,
-      "peer": true
+      "version": "4.3.5",
+      "resolved": "https://registry.npmjs.org/typescript/-/typescript-4.3.5.tgz",
+      "integrity": "sha512-DqQgihaQ9cUrskJo9kIyW/+g0Vxsk8cDtZ52a3NGh0YNTfpUSArXSohyUGnvbPazEPLu398C0UxmKSOrPumUzA==",
+      "dev": true
     },
     "yn": {
       "version": "3.1.1",

package.json

 {
-  "name": "railgun-network-client",
-  "version": "1.0.0",
-  "description": "",
+  "name": "railgun-routing-client",
+  "version": "0.0.1",
+  "author": "zh99998 <zh99998@gmail.com>",
   "scripts": {
     "start": "ts-node src/main.ts"
   },
   "main": "index.js",
   "devDependencies": {
-    "@types/node": "^14.14.14",
-    "ts-node": "^9.1.1"
+    "@types/node": "^16.6.1",
+    "ts-node": "^10.2.0",
+    "typescript": "^4.3.5"
   }
 }

peers.json

-{
-  "id": 3,
-  "peers": [
-    {
-      "id": 23,
-      "address": "10.200.23.3",
-      "subnets": ["10.198.0.25"],
-      "mark": 18003
-    }
-  ]
-}

protocol.ts

+// 这个文件两端共用
+
+export interface PeerQuality {
+  delay: number;
+  jitter: number;
+  reliability: number;
+}
+
+// 路由器向中心服务器发送的消息
+export interface UploadMessage {
+  id: number; // router id
+  ack: number;
+  peers?: Record<number, PeerQuality>;
+}
+
+// 中心服务器向路由器发送的消息
+export interface DownloadMessage {
+  seq: number,
+  to: number,
+  nextHop: number;
+}
+
+// 路由器向路由器发送的消息
+export interface PeerMessage {
+  id: number;
+  seq: number;
+  time: number;
+}

src/Peer.ts

 import config from '../config.json';
-import { Socket } from 'dgram';
-import { PeerMeasure } from './protocol';
+import { PeerMessage, PeerQuality } from '../protocol';
 
-export interface PeerHello {
-  id: number;
-  seq: number;
-  time: number;
-}
-
-
-
-export interface PeerConfig {
+export interface RouterConfig {
   id: number;
   address: string;
   subnets: string[];
 }
 
-export class Peer implements PeerHello, PeerMeasure, PeerConfig {
+export class Peer implements PeerMessage, PeerQuality, RouterConfig {
   id: number;
   address: string;
   subnets: string[];
 
   delay: number = 0;
+  jitter: number = 0;
   reliability: number = 0;
   seq: number = 0;
   time: number = 0;
 
-  constructor(config: PeerConfig) {
+  constructor(config: RouterConfig) {
     Object.assign(this, config);
   }
 
@@ -37,7 +29,7 @@ export class Peer implements PeerHello, PeerMeasure, PeerConfig {
     this.time = 0;
   }
 
-  onMessage(data: PeerHello) {
+  onMessage(data: PeerMessage) {
     if (data.seq == 0 || data.seq < this.seq - config.timeout || data.seq > this.seq + config.timeout) {
       // 收到 seq = 0 或 seq 与之前差距较大，就 reset
       this.reset();
@@ -57,23 +49,14 @@ export class Peer implements PeerHello, PeerMeasure, PeerConfig {
     this.time = data.time;
   }
 
-  update(socket: Socket, self: PeerHello) {
+  update(time: number) {
     if (this.reliability == 0) {
       return;
     }
     // 有几个包没到
-    const step = Math.floor((self.time - this.time + this.delay - config.interval) / config.interval);
+    const step = Math.floor((time - this.time + this.delay - config.interval) / config.interval);
     if (step > config.timeout) {
       this.reset();
-      return;
     }
-
-    // if(self.time - this.time )
-    socket.send(JSON.stringify(self), config.port, this.address, (error, bytes) => error && console.warn(error));
   }
-
-  // pickServer(): PeerMeasure {
-  //   const { id, delay, reliability } = this;
-  //   return { id, delay, reliability };
-  // }
 }

src/RouteWriter.ts

-import { Peer } from './Peer';
-
-const tableOffset = 10000;
-const groupTableOffset = 11000;
+import config from '../config.json';
+import routers from '../routers.json';
 
 export class RouteWriter {
-  routes: Route[];
-
-  constructor() {}
-
-  reset() {
-    // TODO: 所有 neighbor 重设为直连，不是 neighbor 的设为 unreachable
-    //  只是记下来，commit的时候再写入
-  }
 
-  add(to: Peer, via: Peer) {
-    for (const subnet of to.subnets) {
-      this.routes.push({ to: subnet, via: via.address, table: 'main' });
+  static reset() {
+    console.log(`route flush table ${config.table} proto ${config.proto}`);
+    for (const peer of routers.filter(r => r.interface)) {
+      this.set(peer.id, peer.id);
     }
-    this.routes.push({ to: 'default', via: via.address, table: tableOffset + to.id });
   }
 
-  // groupAdd(to: Peer, via: Peer) {
-  //   this.routes.push({ to: 'default', via: via.address, table: groupTableOffset + to.id });
-  // }
-
-  commit() {
-    // TODO: 写进系统，用 ip -batch
+  static set(toId: number, viaId: number) {
+    const to = routers.find(r => r.id == toId);
+    const via = routers.find(r => r.id == viaId);
+    for (const address of [to.address, ...to.subnets]) {
+      console.log(`route replace ${address} dev ${via.interface}`);
+    }
   }
 }
-
-export interface Route {
-  to: string;
-  via: string;
-  table: number | string;
-}

src/Server.ts

-import { RouteWriter } from './RouteWriter';
-import { Peer, PeerHello, PeerMeasure } from './Peer';
 import { Socket } from 'dgram';
+
 import config from '../config.json';
 
+import { RouteWriter } from './RouteWriter';
+import { Peer } from './Peer';
+import { DownloadMessage, PeerMessage, PeerQuality, UploadMessage } from '../protocol';
+
 export class Server {
   ack = 0;
 
-  onMessage(data: ServerMessage, socket: Socket, self: PeerHello, peers: Map<number, Peer>) {
-    if (data.seq && this.ack != data.seq) {
+  onMessage(socket: Socket, message: DownloadMessage, self: PeerMessage) {
+    if (message.seq && this.ack != message.seq) {
       return;
     }
 
-    const routeWriter = new RouteWriter();
-
-    if (data.seq === 0) {
-      routeWriter.reset();
+    if (message.seq === 0) {
+      RouteWriter.reset();
     }
-    for (const [to, via] of Object.entries(data.routes).map(([to, via]) => [peers.get(parseInt(to)), peers.get(via)])) {
-      routeWriter.add(to, via);
-    }
-    // for (const [to, via] of Object.entries(data.groups).map(([to, via]) => [peers.get(parseInt(to)), peers.get(via)])) {
-    //   routeWriter.groupAdd(to, via);
-    // }
 
-    this.ack = data.seq + 1;
+    RouteWriter.set(message.to, message.nextHop);
+    this.ack = message.seq + 1;
+
+    const response: UploadMessage = {
+      id: self.id,
+      ack: this.ack
+    };
 
-    socket.send(
-      JSON.stringify({
-        id: self.id,
-        ack: this.ack,
-      }),
-      config.server_port,
-      config.server_address
-    );
+    socket.send(JSON.stringify(response), config.server_port, config.server_address);
   }
 
-  update(socket: Socket, self: PeerHello, peers: Map<number, Peer>) {
-    const p: PeerMeasure[] = [];
+  update(socket: Socket, self: PeerMessage, peers: Peer[]) {
+    const p: Record<number, PeerQuality> = {};
 
-    for (const peer of peers.values()) {
+    for (const peer of peers) {
       if (peer.reliability === 0) {
         continue;
       }
@@ -52,15 +46,12 @@ export class Server {
       const reliability = (peer.reliability * (config.timeout - step)) / config.timeout;
 
       const { id, delay } = peer;
-      p.push({ id, delay, reliability });
+
+      // jitter 还没算
+      p[id] = { delay, jitter: 0, reliability };
     }
 
-    socket.send(JSON.stringify({ id: self.id, ack: this.ack, peers: p }), config.server_port, config.server_address);
+    const message: UploadMessage = { id: self.id, ack: this.ack, peers: p };
+    socket.send(JSON.stringify(message), config.server_port, config.server_address);
   }
 }
-
-export interface ServerMessage {
-  seq: number;
-  routes: { [to: number]: number };
-  groups: { [to: number]: number };
-}

src/main.ts

 import dgram from 'dgram';
 import assert from 'assert';
-import { Peer, PeerHello } from './Peer';
-
 import config from '../config.json';
-import { Server, ServerMessage } from './Server';
-import { id, peers as peersConfig } from '../peers.json';
+import routers from '../routers.json';
+import { Server } from './Server';
+import { Peer } from './Peer';
+import { DownloadMessage, PeerMessage } from '../protocol';
 
-const self: PeerHello = { id, seq: 0, time: 0 };
+const self: PeerMessage = { id: parseInt(process.env.RAILGUN_ID), seq: 0, time: 0 };
 const server = new Server();
-const peers = new Map<number, Peer>();
-for (const peer of peersConfig) {
-  peers.set(peer.id, new Peer(peer));
-}
+const peers = routers.filter(r => r.id !== self.id && r.interface).map(r => new Peer(r));
 
-const socket = dgram.createSocket('udp4');
-socket.on('message', (msg, rinfo) => {
-  try {
-    if (rinfo.address == config.server_address && rinfo.port == config.server_port) {
-      // from server
-      const hello: ServerMessage = JSON.parse(msg.toString());
-      server.onMessage(hello, socket, self, peers);
-    } else {
-      // from client
-      const hello: PeerHello = JSON.parse(msg.toString());
-      assert.ok(hello.id);
-      const peer = peers.get(hello.id);
-      assert.ok(peer && rinfo.address == peer.address && rinfo.port == config.port);
-      peer.onMessage(hello);
+const socket = dgram
+  .createSocket('udp4')
+  .on('listening', () => {
+    const address = socket.address();
+    console.log(`listening ${address.address}:${address.port}`);
+  })
+  .on('message', (msg, rinfo) => {
+    try {
+      if (rinfo.address == config.server_address && rinfo.port == config.server_port) {
+        // from server
+        const message: DownloadMessage = JSON.parse(msg.toString());
+        server.onMessage(socket, message, self);
+      } else {
+        // from client
+        const message: PeerMessage = JSON.parse(msg.toString());
+        assert(message.id);
+        const peer = peers.find(p => p.id === message.id);
+        assert(peer && rinfo.address == peer.address && rinfo.port == config.port);
+        peer.onMessage(message);
+      }
+    } catch (e) {
+      console.warn(e);
     }
-  } catch (e) {
-    console.warn(e);
-  }
-});
+  });
 
-socket.on('listening', () => {
-  const address = socket.address();
-  console.log(`listening ${address.address}:${address.port}`);
-});
-socket.bind(config.port);
+socket.bind(config.port, routers.find(r => r.id == self.id).address);
 
 setInterval(() => {
   self.time = Date.now();
-  for (const peer of peers.values()) {
-    peer.update(socket, self);
+  const message = JSON.stringify(self);
+  for (const peer of peers) {
+    peer.update(self.time);
+    socket.send(message, config.port, peer.address);
   }
   server.update(socket, self, peers);
   self.seq++;

src/protocol.ts

-export interface PeerMeasure {
-  id: number;
-  delay: number;
-  reliability: number;
-}
-
-export interface ServerMessage {
-  id: number;
-  ack: number;
-  peers: PeerMeasure[];
-}

tsconfig.json

 {
   "compilerOptions": {
     "module": "commonjs",
-    "target": "es2020",
+    "target": "esnext",
     "sourceMap": true,
     "esModuleInterop": true,
     "resolveJsonModule": true,
     "lib": []
-  },
-  "exclude": [
-    "node_modules"
-  ]
+  }
 }