chore: 更新多个 ASN 的 IPv6 前缀

chore(deps): bump actions/setup-go from 6 to 7

.github/workflows/build.yml

@@ -25,7 +25,7 @@ jobs:
           token: ${{ secrets.GITHUB_TOKEN }}
 
       - name: 设置 Go
-        uses: actions/setup-go@v6
+        uses: actions/setup-go@v7
         with:
           go-version-file: go.mod
 

.github/workflows/ci.yaml

@@ -18,7 +18,7 @@ jobs:
         uses: actions/checkout@v7
 
       - name: Setup Go
-        uses: actions/setup-go@v6
+        uses: actions/setup-go@v7
         with:
           go-version-file: go.mod
           check-latest: true

.github/workflows/main.yaml

@@ -21,7 +21,7 @@ jobs:
       uses: actions/checkout@v7
       
     - name: Set up Go
-      uses: actions/setup-go@v6
+      uses: actions/setup-go@v7
       with:
         go-version-file: go.mod
         check-latest: true
@@ -51,7 +51,7 @@ jobs:
       uses: actions/checkout@v7
 
     - name: Set up Go
-      uses: actions/setup-go@v6
+      uses: actions/setup-go@v7
       with:
         go-version-file: go.mod
         check-latest: true

bgptools/privacy_test.go

@@ -54,13 +54,13 @@ func TestStructuredReportErrorsDoNotExposeRemoteURLs(t *testing.T) {
 	if err != nil {
 		t.Fatal(err)
 	}
-	for _, forbidden := range []string{"token=", "key=", "secret", "userinfo@"} {
+	for _, forbidden := range []string{"private.example", "token=", "key=", "secret", "userinfo@", `"geofeed_urls"`, `"port43"`, `"server"`, `"url"`} {
 		if strings.Contains(string(encoded), forbidden) {
 			t.Fatalf("structured report leaked %q: %s", forbidden, encoded)
 		}
 	}
-	if report.RDAP == nil || len(report.RDAP.GeofeedURLs) != 1 || report.RDAP.GeofeedURLs[0] != "https://private.example/geofeed" || report.Geofeeds[0].URL != "https://private.example/geofeed" {
-		t.Fatalf("geofeed URL was not sanitized consistently: %+v", report)
+	if report.RDAP == nil || len(report.RDAP.GeofeedURLs) != 1 || report.Geofeeds[0].Status != ReportError {
+		t.Fatalf("internal geofeed processing was not preserved: %+v", report)
 	}
 }
 
@@ -95,3 +95,38 @@ func TestRemoteFetchErrorsDoNotExposeSourceURL(t *testing.T) {
 		})
 	}
 }
+
+func TestStructuredReportOmitsServiceLocationsButKeepsProbeEvidence(t *testing.T) {
+	report := IPBGPReport{
+		Status: ReportPartial,
+		RDAP: &RDAPRecord{
+			Port43:      "whois.private.example:43",
+			GeofeedURLs: []string{"https://private.example/rdap-geofeed.csv"},
+		},
+		WHOIS: &WHOISRecord{
+			Server:      "whois.private.example:43",
+			Status:      ReportAvailable,
+			GeofeedURLs: []string{"https://private.example/whois-geofeed.csv"},
+		},
+		Geofeeds: []GeofeedResult{{
+			URL:        "https://private.example/geofeed.csv",
+			Status:     ReportAvailable,
+			HTTPStatus: http.StatusOK,
+			Bytes:      128,
+		}},
+	}
+	encoded, err := json.Marshal(report)
+	if err != nil {
+		t.Fatal(err)
+	}
+	for _, forbidden := range []string{"private.example", "whois.private", `"geofeed_urls"`, `"port43"`, `"server"`, `"url"`} {
+		if strings.Contains(string(encoded), forbidden) {
+			t.Fatalf("structured report leaked %q: %s", forbidden, encoded)
+		}
+	}
+	for _, expected := range []string{`"status":"available"`, `"http_status":200`, `"bytes":128`} {
+		if !strings.Contains(string(encoded), expected) {
+			t.Fatalf("structured report lost probe evidence %q: %s", expected, encoded)
+		}
+	}
+}

bgptools/rdap.go

@@ -36,9 +36,9 @@ type RDAPRecord struct {
 	Prefixes         []string     `json:"prefixes,omitempty"`
 	RegistrationDate *time.Time   `json:"registration_date,omitempty"`
 	LastChangedDate  *time.Time   `json:"last_changed_date,omitempty"`
-	GeofeedURLs      []string     `json:"geofeed_urls,omitempty"`
+	GeofeedURLs      []string     `json:"-"`
 	Entities         []RDAPEntity `json:"entities,omitempty"`
-	Port43           string       `json:"port43,omitempty"`
+	Port43           string       `json:"-"`
 	Status           []string     `json:"status,omitempty"`
 	Source           string       `json:"source"`
 }

bgptools/report.go

@@ -46,10 +46,10 @@ type RIRInfo struct {
 	Status ReportStatus `json:"status"`
 }
 
-// GeofeedResult contains an RDAP/WHOIS geofeed URL and, when requested, the
-// bounded fetch result.  The payload itself is not retained in the report.
+// GeofeedResult contains the bounded fetch result. URL remains internal so
+// reports expose the probe outcome without disclosing the service location.
 type GeofeedResult struct {
-	URL        string       `json:"url"`
+	URL        string       `json:"-"`
 	Status     ReportStatus `json:"status"`
 	HTTPStatus int          `json:"http_status,omitempty"`
 	Bytes      int64        `json:"bytes,omitempty"`
@@ -59,11 +59,11 @@ type GeofeedResult struct {
 // WHOISRecord is the small, structured subset used when RDAP is unavailable
 // or missing required fields.  Raw port-43 text is never returned.
 type WHOISRecord struct {
-	Server           string       `json:"server"`
+	Server           string       `json:"-"`
 	Status           ReportStatus `json:"status"`
 	Prefixes         []string     `json:"prefixes,omitempty"`
 	RegistrationDate *time.Time   `json:"registration_date,omitempty"`
-	GeofeedURLs      []string     `json:"geofeed_urls,omitempty"`
+	GeofeedURLs      []string     `json:"-"`
 	RIR              RIRInfo      `json:"rir"`
 }
 

bk/prefix/as4134.txt

@@ -53,9 +53,11 @@
 240e:14::/31
 240e:16:1001::/48
 240e:16:1008::/48
+240e:16:1009::/48
 240e:184:c000::/34
 240e:1:8000::/33
 240e:1::/33
+240e:1c7:c00::/40
 240e:1c:112::/48
 240e:1c::/31
 240e:204::/30
@@ -197,6 +199,7 @@
 240e:470::/30
 240e:474::/30
 240e:478::/30
+240e:47:4::/48
 240e:47::/32
 240e:47c::/30
 240e:48:8000::/33
@@ -207,6 +210,7 @@
 240e:4a:8000::/33
 240e:4a::/33
 240e:4b:1::/48
+240e:4b:2::/48
 240e:4b:8000::/33
 240e:4b::/33
 240e:4c:4006::/48
@@ -218,6 +222,7 @@
 240e:4d::/33
 240e:4e:4000::/48
 240e:4e:8000::/33
+240e:4e:800::/48
 240e:4e::/33
 240e:4f:8000::/33
 240e:4f::/33
@@ -365,6 +370,7 @@
 240e:750::/29
 240e:758::/29
 240e:760::/29
+240e:767:7180::/41
 240e:768::/29
 240e:770::/29
 240e:778::/29

bk/prefix/as4134.txt.manifest.json

@@ -1,7 +1,7 @@
 {
   "schema": "backtrace.asn-prefixes/v1",
   "file": "as4134.txt",
-  "count": 629,
-  "sha256": "00941f76c022566166b926670ee9358084c53465cbaaf75a3da7b73d997d1947",
-  "generated_at": "2026-07-30T15:51:08Z"
+  "count": 635,
+  "sha256": "7c3ac225b46f7aa34446402b50d2f1977e942c2968e8b3e9a31960b0ec2b6a4c",
+  "generated_at": "2026-08-06T02:45:13Z"
 }

bk/prefix/as4809.txt

@@ -74,6 +74,7 @@
 240e:62c:1f0::/44
 240e:62f::/48
 240e:638:c301::/48
+240e:638:c303::/48
 240e:638:f::/48
 240e:63c:3f00::/44
 240e:640:178::/48
@@ -113,10 +114,12 @@
 240e:669:b000::/40
 240e:670:d000::/36
 240e:679:1001::/48
+240e:67c:2a80::/48
 240e:688:ed00::/48
 240e:699:7a00::/48
 240e:699:7a01::/48
 240e:699:7b00::/48
+240e:699:7b03::/48
 240e:699:7b06::/48
 240e:699:7b07::/48
 240e:699:7b08::/48
@@ -136,11 +139,14 @@
 240e:713:f021::/48
 240e:733:4c0::/48
 240e:733:4c1::/48
+240e:737:2ee0::/48
 240e:767:f000::/48
 240e:787:7000::/48
 240e:787:7001::/48
 240e:790:fe10::/48
 240e:790:fe20::/48
+240e:790:fe30::/48
+240e:790:fe70::/48
 240e:790:ff00::/40
 240e:7b6::/31
 240e:965:822::/48
@@ -153,6 +159,8 @@
 240e:ff:c024::/48
 240e:ff:c027::/48
 240e:ff:c029::/48
+240e:ff:c032::/48
+240e:ff:c034::/48
 2605:9d80:9003::/48
 2605:9d80:9013::/48
 2605:9d80:9023::/48

bk/prefix/as4809.txt.manifest.json

@@ -1,7 +1,7 @@
 {
   "schema": "backtrace.asn-prefixes/v1",
   "file": "as4809.txt",
-  "count": 188,
-  "sha256": "a43638fa67e5057d237988233101ef0bfd4f5557001325289e0846af642670ae",
-  "generated_at": "2026-07-30T15:51:08Z"
+  "count": 196,
+  "sha256": "44427b38edfd4cbd6ebefedccc7af0bb2332f923472bc5e67764951fbe20441e",
+  "generated_at": "2026-08-12T02:06:59Z"
 }

bk/prefix/as4837.txt

@@ -13,22 +13,81 @@
 2408:8000:10fe::/48
 2408:8000:10ff::/48
 2408:8000:2000::/36
+2408:8000:2009::/48
+2408:8000:200e::/48
 2408:8000:2::/48
 2408:8000:3000::/36
+2408:8000:3100::/48
+2408:8000:3210::/48
+2408:8000:3211::/48
+2408:8000:3317::/48
+2408:8000:3410::/48
+2408:8000:3500::/48
+2408:8000:3610::/48
+2408:8000:3700::/48
+2408:8000:3810::/48
+2408:8000:3811::/48
+2408:8000:3910::/48
 2408:8000:3::/48
+2408:8000:3a13::/48
+2408:8000:3b00::/48
+2408:8000:3c10::/48
+2408:8000:3c11::/48
 2408:8000:4000::/36
+2408:8000:4000::/48
+2408:8000:4002::/48
+2408:8000:4003::/48
+2408:8000:4004::/48
+2408:8000:4005::/48
+2408:8000:4006::/48
+2408:8000:4007::/48
+2408:8000:4008::/48
+2408:8000:4009::/48
+2408:8000:400a::/48
+2408:8000:400b::/48
 2408:8000:5000::/36
 2408:8000:6000::/36
+2408:8000:6001::/48
+2408:8000:6002::/48
+2408:8000:6003::/48
+2408:8000:6004::/48
+2408:8000:6005::/48
+2408:8000:6006::/48
+2408:8000:6007::/48
+2408:8000:6008::/48
+2408:8000:6009::/48
+2408:8000:600a::/48
+2408:8000:600b::/48
+2408:8000:600c::/48
+2408:8000:600d::/48
+2408:8000:600e::/48
 2408:8000:7000::/36
 2408:8000:8000::/36
 2408:8000:8010::/47
+2408:8000:8010::/48
+2408:8000:8040::/48
+2408:8000:8090::/48
+2408:8000:80c0::/48
 2408:8000::/48
 2408:8000:a000::/36
+2408:8000:a002::/48
+2408:8000:a00d::/48
 2408:8000:b000::/36
 2408:8000:c000::/36
+2408:8000:c038::/48
+2408:8000:c03b::/48
+2408:8000:c03c::/48
 2408:8000:d000::/36
+2408:8000:d101::/48
+2408:8000:d201::/48
+2408:8000:d501::/48
+2408:8000:da01::/48
 2408:8000:e000::/36
+2408:8000:eeee::/48
 2408:8000:f000::/36
+2408:8000:f000::/48
+2408:8000:f100::/48
+2408:8000:f200::/48
 2408:8001:1000::/36
 2408:8001:2000::/36
 2408:8001:3002::/48
@@ -54,18 +113,34 @@
 2408:8001:3142::/48
 2408:8001:3152::/48
 2408:8001:4000::/36
+2408:8001:4000::/48
+2408:8001:4010::/48
+2408:8001:4020::/48
 2408:8001:5000::/36
+2408:8001:5000::/48
 2408:8001:6000::/36
 2408:8001:7000::/36
+2408:8001:7030::/48
 2408:8001:8000::/36
 2408:8001:9000::/36
 2408:8001::/36
 2408:8001:a000::/36
 2408:8001:b000::/36
+2408:8001:b013::/48
+2408:8001:b033::/48
+2408:8001:b043::/48
+2408:8001:b063::/48
+2408:8001:b083::/48
 2408:8001:c000::/36
+2408:8001:c000::/48
+2408:8001:c001::/48
 2408:8001:d000::/36
+2408:8001:d000::/48
 2408:8001:e000::/36
+2408:8001:e001::/48
+2408:8001:e003::/48
 2408:8001:f000::/36
+2408:8026:480::/48
 2408:802a:8000::/33
 2408:802c::/32
 2408:803e::/32
@@ -323,7 +398,23 @@
 2408:8637::/32
 2408:8638::/32
 2408:8639::/32
+2408:863c:2ef0::/48
+2408:863c:3cf1::/48
+2408:863c:40f1::/48
+2408:863c:4cf1::/48
+2408:863c:6ef1::/48
+2408:863c:7ee0::/48
+2408:863c:7ef0::/48
+2408:863c:88e0::/48
+2408:863c:9ce0::/48
+2408:863c:9cf0::/48
 2408:863c::/32
+2408:863c:a6e1::/48
+2408:863c:a6f1::/48
+2408:863c:b2f0::/48
+2408:863d:5ae1::/48
+2408:863d:6ef1::/48
+2408:863d:88f0::/48
 2408:863d::/32
 2408:8640::/32
 2408:8642::/32
@@ -342,7 +433,9 @@
 2408:865f::/32
 2408:8660::/32
 2408:8662::/32
+2408:8662::/48
 2408:8663::/32
+2408:8663::/48
 2408:8664::/32
 2408:8665::/32
 2408:8666::/32
@@ -386,7 +479,18 @@
 2408:8738::/32
 2408:873c::/32
 2408:873d::/32
+2408:8740:1fc0::/48
+2408:8740:2fc0::/48
+2408:8740:3fc0::/48
+2408:8740:4fc0::/48
+2408:8740:5fc0::/48
+2408:8740:6fc0::/48
+2408:8740:7fc0::/48
+2408:8740:8fc0::/48
+2408:8740:9fc0::/48
 2408:8740::/32
+2408:8740:afc0::/48
+2408:8740:bfc0::/48
 2408:8742::/32
 2408:8744::/30
 2408:8748::/32

bk/prefix/as4837.txt.manifest.json

@@ -1,7 +1,7 @@
 {
   "schema": "backtrace.asn-prefixes/v1",
   "file": "as4837.txt",
-  "count": 492,
-  "sha256": "40ece28148fc843764a9b1cec48d07013d6e6fdc8697b601af93a45093e1908c",
-  "generated_at": "2026-07-30T15:51:08Z"
+  "count": 596,
+  "sha256": "903d9b20db80f5696a3c124cda2c73072cd5d8acb992d9b55f369d8b435a65d0",
+  "generated_at": "2026-08-13T02:09:16Z"
 }

bk/prefix/as9808.txt

@@ -167,6 +167,7 @@
 2409:802e:2905::/48
 2409:802e:2906::/48
 2409:802e:2909::/48
+2409:802e:290b::/48
 2409:802e:290d::/48
 2409:802e:2a05::/48
 2409:802e:2a06::/48
@@ -203,6 +204,7 @@
 2409:802f:290e::/48
 2409:802f:290f::/48
 2409:802f:2913::/48
+2409:802f:2914::/48
 2409:802f:2915::/48
 2409:802f:2916::/48
 2409:802f:2a05::/48
@@ -329,6 +331,7 @@
 2409:804b:290c::/48
 2409:804b:2910::/48
 2409:804b:2911::/48
+2409:804b:2912::/48
 2409:804b:29ff::/48
 2409:804b:2b05::/48
 2409:804b:2b06::/48
@@ -337,6 +340,7 @@
 2409:804b:2b0b::/48
 2409:804b:2b10::/48
 2409:804b:2b11::/48
+2409:804b:2b12::/48
 2409:804b:2c06::/48
 2409:804b:2c0b::/48
 2409:804b:3f13::/48
@@ -547,7 +551,9 @@
 2409:805b:2b0d::/48
 2409:805b:2b0e::/48
 2409:805b:2b0f::/48
+2409:805b:2b10::/48
 2409:805b:2c04::/48
+2409:805b:2c11::/48
 2409:805b:3ff0::/48
 2409:805c:1000::/40
 2409:805c:11::/48
@@ -696,16 +702,21 @@
 2409:8069:290d::/48
 2409:8069:290e::/48
 2409:8069:290f::/48
+2409:8069:2910::/48
 2409:8069:2a00::/40
 2409:8069:2a05::/48
 2409:8069:2a07::/48
+2409:8069:2a0b::/48
 2409:8069:2a0e::/48
+2409:8069:2a10::/48
 2409:8069:2b00::/40
 2409:8069:2b05::/48
 2409:8069:2b07::/48
+2409:8069:2b0b::/48
 2409:8069:2b0c::/48
 2409:8069:2b0e::/48
 2409:8069:2b0f::/48
+2409:8069:2b10::/48
 2409:8069:2c00::/40
 2409:8069:2c05::/48
 2409:8069:2c06::/48
@@ -1028,7 +1039,6 @@
 2409:8087:7b00::/40
 2409:8087:7c00::/40
 2409:8087:7e00::/40
-2409:8087:8000::/48
 2409:8087:8001::/48
 2409:8087:8003::/48
 2409:8087:8004::/48
@@ -1054,7 +1064,6 @@
 2409:8087:801a::/48
 2409:8087:801b::/48
 2409:8087:8106::/48
-2409:8089:1020::/48
 2409:815c::/32
 2409:8234::/32
 2409:826c::/32
@@ -4137,45 +4146,8 @@
 2409:896a:fffd::/48
 2409:896a:fffe::/48
 2409:896b::/32
-2409:896c:100::/42
-2409:896c:1760::/43
-2409:896c:1860::/43
-2409:896c:1960::/43
-2409:896c:1a60::/43
-2409:896c:1b60::/43
-2409:896c:1c60::/43
-2409:896c:1d60::/43
-2409:896c:1e60::/43
-2409:896c:1f60::/43
-2409:896c:200::/42
-2409:896c:300::/42
-2409:896c:3560::/43
-2409:896c:3660::/43
-2409:896c:3760::/43
-2409:896c:3860::/43
-2409:896c:3960::/43
-2409:896c:3a60::/43
-2409:896c:3b60::/43
-2409:896c:3c60::/43
-2409:896c:3d60::/43
-2409:896c:3e60::/43
-2409:896c:3f60::/43
-2409:896c:400::/42
-2409:896c:4060::/43
-2409:896c:4160::/43
-2409:896c:500::/42
-2409:896c:600::/42
-2409:896c:700::/42
-2409:896c:800::/42
-2409:896c:900::/42
 2409:896c::/32
-2409:896c::/42
-2409:896c:a00::/42
-2409:896c:b00::/42
-2409:896c:c00::/42
-2409:896c:d00::/42
 2409:896d:1000::/40
-2409:896d:100::/40
 2409:896d:1100::/40
 2409:896d:1200::/40
 2409:896d:1300::/40
@@ -4192,7 +4164,6 @@
 2409:896d:1e00::/40
 2409:896d:1f00::/40
 2409:896d:2000::/40
-2409:896d:200::/40
 2409:896d:2100::/40
 2409:896d:2200::/40
 2409:896d:2300::/40
@@ -4209,7 +4180,6 @@
 2409:896d:2e00::/40
 2409:896d:2f00::/40
 2409:896d:3000::/40
-2409:896d:300::/40
 2409:896d:3100::/40
 2409:896d:3200::/40
 2409:896d:3300::/40
@@ -4226,7 +4196,6 @@
 2409:896d:3e00::/40
 2409:896d:3f00::/40
 2409:896d:4000::/40
-2409:896d:400::/40
 2409:896d:4100::/40
 2409:896d:4200::/40
 2409:896d:4300::/40
@@ -4243,7 +4212,6 @@
 2409:896d:4e00::/40
 2409:896d:4f00::/40
 2409:896d:5000::/40
-2409:896d:500::/40
 2409:896d:5100::/40
 2409:896d:5200::/40
 2409:896d:5300::/40
@@ -4260,7 +4228,6 @@
 2409:896d:5e00::/40
 2409:896d:5f00::/40
 2409:896d:6000::/40
-2409:896d:600::/40
 2409:896d:6100::/40
 2409:896d:6200::/40
 2409:896d:6300::/40
@@ -4277,7 +4244,6 @@
 2409:896d:6e00::/40
 2409:896d:6f00::/40
 2409:896d:7000::/40
-2409:896d:700::/40
 2409:896d:7100::/40
 2409:896d:7200::/46
 2409:896d:7204::/46
@@ -4302,14 +4268,7 @@
 2409:896d:7e00::/40
 2409:896d:7f00::/40
 2409:896d:8000::/40
-2409:896d:800::/40
-2409:896d:900::/40
 2409:896d::/32
-2409:896d::/40
-2409:896d:a00::/40
-2409:896d:b00::/40
-2409:896d:c00::/40
-2409:896d:d00::/40
 2409:896d:e00::/40
 2409:896d:f00::/40
 2409:896d:fff7::/48
@@ -6558,6 +6517,7 @@
 2409:8c5e:a0::/48
 2409:8c5f::/32
 2409:8c60:1200::/40
+2409:8c60:1e00::/40
 2409:8c60:2400::/40
 2409:8c60:2400::/48
 2409:8c60:2500::/40

bk/prefix/as9808.txt.manifest.json

@@ -1,7 +1,7 @@
 {
   "schema": "backtrace.asn-prefixes/v1",
   "file": "as9808.txt",
-  "count": 7171,
-  "sha256": "ba623bf5d30f2c69340ffdd2c4d50bfc79506b00ebdbc8a2f0448b7ce21148e1",
-  "generated_at": "2026-07-30T15:51:08Z"
+  "count": 7131,
+  "sha256": "9b66caccde8e09b1e167de1d0e7a05b29b203c0ed7032361002fec052fe9d096",
+  "generated_at": "2026-08-08T01:47:24Z"
 }

bk/prefix/as9929.txt

@@ -111,6 +111,7 @@
 2408:864c:10ff::/48
 2408:8651:ff00::/48
 2408:8652:ff00::/48
+2408:8656:22cf::/48
 2408:8656:a52::/48
 2408:865c:f0::/44
 2408:8660:100::/48

bk/prefix/as9929.txt.manifest.json

@@ -1,7 +1,7 @@
 {
   "schema": "backtrace.asn-prefixes/v1",
   "file": "as9929.txt",
-  "count": 144,
-  "sha256": "a5f65f08a447982cd2c8611005261deab3400f1232ae594fb98f6bfb3fe09084",
-  "generated_at": "2026-07-20T19:12:54Z"
+  "count": 145,
+  "sha256": "0764b222d3f24c65be191b0300eaf9942416dda766bb9b70ec21c5836f9bcac9",
+  "generated_at": "2026-08-08T01:47:24Z"
 }

bk/route_render.go

@@ -4,6 +4,7 @@ import (
 	"fmt"
 	"strings"
 
+	"github.com/oneclickvirt/backtrace/model"
 	. "github.com/oneclickvirt/defaultset"
 )
 
@@ -13,22 +14,12 @@ import (
 func RenderRouteReport(report RouteReport) string {
 	var builder strings.Builder
 	for _, target := range report.Targets {
-		label := target.Classification.Label
-		if label == "" {
-			label = "线路证据不足"
-		}
 		var rendered string
 		switch {
 		case target.Status != RouteProbeAvailable:
 			rendered = Red("检测不到回程路由节点的IP地址")
-		case target.Classification.Confidence == routeConfidenceInconclusive:
-			rendered = Red(label)
-		case target.Classification.Rank >= 4:
-			rendered = DarkGreen(label)
-		case target.Classification.Rank == 3:
-			rendered = Green(label)
 		default:
-			rendered = White(label)
+			rendered = renderLegacyRouteLabels(target)
 		}
 		addressWidth := 15
 		if target.Target.IPVersion == "v6" {
@@ -38,3 +29,89 @@ func RenderRouteReport(report RouteReport) string {
 	}
 	return strings.TrimSuffix(builder.String(), "\n")
 }
+
+// renderLegacyRouteLabels keeps the original terminal contract: every known
+// carrier ASN observed in the trace remains visible. The conservative
+// Classification is retained for JSON consumers, but its evidence-oriented
+// fallback labels must not replace the classic human-readable route result.
+func renderLegacyRouteLabels(target RouteTargetReport) string {
+	asns := uniqueStrings(target.ObservedASNs)
+	hasAS4134 := containsString(asns, "AS4134")
+	hasAS4809 := containsString(asns, "AS4809")
+
+	ordered := make([]string, 0, len(asns)+1)
+	if hasAS4809 {
+		if hasAS4134 {
+			ordered = append(ordered, "AS4809b")
+		} else {
+			ordered = append(ordered, "AS4809a")
+		}
+	}
+	ordered = append(ordered, asns...)
+
+	seenLabels := make(map[string]struct{})
+	labels := make([]string, 0, len(ordered))
+	for _, asn := range ordered {
+		if asn == "AS4809" {
+			continue
+		}
+		label := model.M[asn]
+		if label == "" {
+			continue
+		}
+		if _, exists := seenLabels[label]; exists {
+			continue
+		}
+		seenLabels[label] = struct{}{}
+		switch asn {
+		case "AS9929", "AS4809a", "AS23764":
+			labels = append(labels, DarkGreen(label))
+		case "AS4809b", "AS58807":
+			labels = append(labels, Green(label))
+		default:
+			labels = append(labels, White(label))
+		}
+	}
+	if len(labels) > 0 {
+		return strings.Join(labels, " ")
+	}
+
+	// Reports produced by older API clients may contain only Classification.
+	if target.Classification.Confidence != routeConfidenceInconclusive && target.Classification.Label != "" {
+		switch {
+		case target.Classification.Rank >= 4:
+			return DarkGreen(target.Classification.Label)
+		case target.Classification.Rank == 3:
+			return Green(target.Classification.Label)
+		default:
+			return White(target.Classification.Label)
+		}
+	}
+	return Red("检测不到已知线路的ASN")
+}
+
+func uniqueStrings(values []string) []string {
+	seen := make(map[string]struct{}, len(values))
+	result := make([]string, 0, len(values))
+	for _, value := range values {
+		value = strings.ToUpper(strings.TrimSpace(value))
+		if value == "" {
+			continue
+		}
+		if _, exists := seen[value]; exists {
+			continue
+		}
+		seen[value] = struct{}{}
+		result = append(result, value)
+	}
+	return result
+}
+
+func containsString(values []string, target string) bool {
+	for _, value := range values {
+		if value == target {
+			return true
+		}
+	}
+	return false
+}

bk/route_report_test.go

@@ -39,7 +39,8 @@ func TestRunRouteReportOfflineFixture(t *testing.T) {
 	if target.Classification.Code != "ct_cn2_gia" || target.Latency.Samples != 6 || target.Latency.P95MS != 30 {
 		t.Fatalf("unexpected route classification or latency: %+v", target)
 	}
-	if strings.Contains(RenderRouteReport(report), "P95") || !strings.Contains(RenderRouteReport(report), "电信CN2GIA") {
+	rendered := RenderRouteReport(report)
+	if strings.Contains(rendered, "P95") || !strings.Contains(rendered, "电信CN2GT") || !strings.Contains(rendered, "电信163") {
 		t.Fatalf("legacy rendering is not compact: %q", RenderRouteReport(report))
 	}
 }
@@ -88,6 +89,55 @@ func TestRenderRouteReportPreservesLegacyAddressWidths(t *testing.T) {
 	}
 }
 
+func TestRenderRouteReportUsesClassicASNLabels(t *testing.T) {
+	report := RouteReport{Targets: []RouteTargetReport{
+		{
+			Target:         RouteTarget{Name: "北京电信v4", Address: "219.141.140.10", IPVersion: "v4", Carrier: "CT"},
+			Status:         RouteProbeAvailable,
+			ObservedASNs:   []string{"AS6453", "AS4134"},
+			Classification: inconclusiveClassification("ct_destination_only", "仅见电信目的网", "only one AS4134 hop"),
+		},
+		{
+			Target:         RouteTarget{Name: "上海电信v4", Address: "202.96.209.133", IPVersion: "v4", Carrier: "CT"},
+			Status:         RouteProbeAvailable,
+			ObservedASNs:   []string{"AS4809", "AS4134"},
+			Classification: RouteClassification{Code: "ct_cn2_mixed", Label: "电信CN2混合 [优质线路]", Confidence: routeConfidenceMixed, Rank: 3},
+		},
+		{
+			Target:         RouteTarget{Name: "广州联通v4", Address: "210.21.196.6", IPVersion: "v4", Carrier: "CU"},
+			Status:         RouteProbeAvailable,
+			ObservedASNs:   []string{"AS4837"},
+			Classification: inconclusiveClassification("cu_destination_only", "仅见联通目的网", "only one AS4837 hop"),
+		},
+	}}
+	rendered := regexp.MustCompile(`\x1b\[[0-9;]*m`).ReplaceAllString(RenderRouteReport(report), "")
+	for _, want := range []string{
+		"北京电信v4 219.141.140.10  电信163    [普通线路]",
+		"上海电信v4 202.96.209.133  电信CN2GT  [优质线路] 电信163    [普通线路]",
+		"广州联通v4 210.21.196.6    联通4837   [普通线路]",
+	} {
+		if !strings.Contains(rendered, want) {
+			t.Fatalf("classic route label missing %q from %q", want, rendered)
+		}
+	}
+	if strings.Contains(rendered, "仅见") || strings.Contains(rendered, "未见") {
+		t.Fatalf("structured fallback label leaked into classic output: %q", rendered)
+	}
+}
+
+func TestRenderRouteReportUsesClassicUnknownMessage(t *testing.T) {
+	report := RouteReport{Targets: []RouteTargetReport{{
+		Target:         RouteTarget{Name: "北京电信v4", Address: "219.141.140.10", IPVersion: "v4", Carrier: "CT"},
+		Status:         RouteProbeAvailable,
+		ObservedASNs:   []string{"AS6453"},
+		Classification: inconclusiveClassification("ct_unknown", "未见电信骨干", "known carrier ASNs are absent"),
+	}}}
+	rendered := regexp.MustCompile(`\x1b\[[0-9;]*m`).ReplaceAllString(RenderRouteReport(report), "")
+	if !strings.Contains(rendered, "检测不到已知线路的ASN") || strings.Contains(rendered, "未见电信骨干") {
+		t.Fatalf("unexpected classic unknown route output: %q", rendered)
+	}
+}
+
 func TestRunRouteReportHonorsContext(t *testing.T) {
 	ctx, cancel := context.WithCancel(context.Background())
 	cancel()

model/model.go

@@ -2,7 +2,7 @@ package model
 
 import "time"
 
-const BackTraceVersion = "v0.0.18"
+const BackTraceVersion = "v0.0.20"
 
 var EnableLoger = false