feat(traffic): разделить плоскости IPFIX и показать путь JH→EN

Считать payload отдельно от overlay GRE/ESP и mesh; вкладка Пути и KPI Wire из счётчиков iface.

Co-authored-by: Cursor <[email protected]>

backend/src/services/traffic-flow-parse.test.ts

@@ -96,10 +96,92 @@ resetFlowTemplatesForTests()
   parseFlowPacket(tpl, "10.255.254.3")
   const named = parseFlowPacket(data, "10.255.254.3")
   assert.equal(named.length, 1)
-  assert.equal(named[0]?.inIface, "ether1")
+  assert.equal(named[0]?.inIface, "13")
   assert.equal(named[0]?.src, "10.1.1.8")
 }
 
+resetFlowTemplatesForTests()
+{
+  const tpl = Buffer.alloc(16 + 20)
+  tpl.writeUInt16BE(10, 0)
+  tpl.writeUInt16BE(tpl.length, 2)
+  tpl.writeUInt16BE(2, 16)
+  tpl.writeUInt16BE(20, 18)
+  tpl.writeUInt16BE(256, 20)
+  tpl.writeUInt16BE(3, 22)
+  tpl.writeUInt16BE(8, 24)
+  tpl.writeUInt16BE(4, 26)
+  tpl.writeUInt16BE(12, 28)
+  tpl.writeUInt16BE(4, 30)
+  tpl.writeUInt16BE(82, 32)
+  tpl.writeUInt16BE(6, 34)
+  const data = Buffer.alloc(16 + 18)
+  data.writeUInt16BE(10, 0)
+  data.writeUInt16BE(data.length, 2)
+  data.writeUInt16BE(256, 16)
+  data.writeUInt16BE(18, 18)
+  data[20] = 10; data[21] = 1; data[22] = 1; data[23] = 8
+  data[24] = 8; data[25] = 8; data[26] = 8; data[27] = 8
+  data.write("ether1", 28)
+  parseFlowPacket(tpl, "10.255.254.4")
+  const namedOnly = parseFlowPacket(data, "10.255.254.4")
+  assert.equal(namedOnly[0]?.inIface, "ether1")
+}
+
+resetFlowTemplatesForTests()
+{
+  const fieldSpecs: Array<[number, number]> = [
+    [8, 4],
+    [12, 4],
+    [10, 4],
+    [14, 4],
+    [15, 4],
+    [152, 8],
+    [153, 8],
+    [1, 4],
+  ]
+  const tplSetLen = 4 + 4 + fieldSpecs.length * 4
+  const tpl = Buffer.alloc(16 + tplSetLen)
+  tpl.writeUInt16BE(10, 0)
+  tpl.writeUInt16BE(tpl.length, 2)
+  tpl.writeUInt16BE(2, 16)
+  tpl.writeUInt16BE(tplSetLen, 18)
+  tpl.writeUInt16BE(256, 20)
+  tpl.writeUInt16BE(fieldSpecs.length, 22)
+  let off = 24
+  for (const [type, len] of fieldSpecs) {
+    tpl.writeUInt16BE(type, off)
+    tpl.writeUInt16BE(len, off + 2)
+    off += 4
+  }
+  const recLen = fieldSpecs.reduce((n, [, len]) => n + len, 0)
+  const data = Buffer.alloc(16 + 4 + recLen)
+  data.writeUInt16BE(10, 0)
+  data.writeUInt16BE(data.length, 2)
+  data.writeUInt16BE(256, 16)
+  data.writeUInt16BE(4 + recLen, 18)
+  let d = 20
+  data[d] = 10; data[d + 1] = 100; data[d + 2] = 1; data[d + 3] = 17; d += 4
+  data[d] = 173; data[d + 1] = 194; data[d + 2] = 160; data[d + 3] = 163; d += 4
+  data.writeUInt32BE(13, d); d += 4
+  data.writeUInt32BE(42, d); d += 4
+  data[d] = 198; data[d + 1] = 51; data[d + 2] = 100; data[d + 3] = 1; d += 4
+  data.writeBigUInt64BE(1_700_000_000_000n, d); d += 8
+  data.writeBigUInt64BE(1_700_000_060_000n, d); d += 8
+  data.writeUInt32BE(1500, d)
+  parseFlowPacket(tpl, "10.255.254.5")
+  const extra = parseFlowPacket(data, "10.255.254.5")
+  assert.equal(extra.length, 1)
+  assert.equal(extra[0]?.src, "10.100.1.17")
+  assert.equal(extra[0]?.dst, "173.194.160.163")
+  assert.equal(extra[0]?.inIface, "13")
+  assert.equal(extra[0]?.outIface, "42")
+  assert.equal(extra[0]?.nextHop, "198.51.100.1")
+  assert.equal(extra[0]?.flowStartMs, 1_700_000_000_000)
+  assert.equal(extra[0]?.flowEndMs, 1_700_000_060_000)
+  assert.equal(extra[0]?.bytes, 1500)
+}
+
 resetFlowTemplatesForTests()
 {
   const tpl = Buffer.alloc(16 + 16 + 20)