Conditionally include VCN in Tethering module

When the build system flag RELEASE_MOVE_VCN_TO_MAINLINE is true,
VCN framework lib will be included in the tethering boot classpath
fragment and the VCN service lib will be included in the
service-connectivity.jar

Bug: 375213246
Test: flag enabled: VCN libs are in the tethering module
      flag disabled: VCN libs are in the platform
Flag: RELEASE_MOVE_VCN_TO_MAINLINE
Change-Id: If0239eb1684b861b63794762915dab0d62379885

Tethering/apex/Android.bp

@@ -155,7 +155,10 @@ bootclasspath_fragment {
         "framework-connectivity",
         "framework-connectivity-t",
         "framework-tethering",
-    ],
+    ] + select(release_flag("RELEASE_MOVE_VCN_TO_MAINLINE"), {
+        true: ["framework-connectivity-b"],
+        default: [],
+    }),
     apex_available: ["com.android.tethering"],
 
     // The bootclasspath_fragments that provide APIs on which this depends.
@@ -195,6 +198,7 @@ bootclasspath_fragment {
             "android.net.http",
             "android.net.netstats",
             "android.net.util",
+            "android.net.vcn",
         ],
 
         // The following packages and all their subpackages currently only

framework-t/Android.bp

@@ -102,6 +102,7 @@ filegroup {
 java_library {
     name: "framework-connectivity-t-pre-jarjar",
     defaults: ["framework-connectivity-t-defaults"],
+    installable: false,
     libs: [
         "framework-bluetooth.stubs.module_lib",
         "framework-wifi.stubs.module_lib",

framework/Android.bp

@@ -143,6 +143,7 @@ java_library {
 java_library {
     name: "framework-connectivity-pre-jarjar",
     defaults: ["framework-module-defaults"],
+    installable: false,
     min_sdk_version: "30",
     static_libs: [
         "framework-connectivity-pre-jarjar-without-cronet",

service-b/Android.bp

@@ -0,0 +1,40 @@
+//
+// Copyright (C) 2024 The Android Open Source Project
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+
+package {
+    default_team: "trendy_team_enigma",
+    default_applicable_licenses: ["Android-Apache-2.0"],
+}
+
+// TODO: b/380331248 This lib is a non-jarjared version of "service-connectivity-b-platform"
+// It will only be included in the Tethering module when the build system flag
+// RELEASE_MOVE_VCN_TO_MAINLINE is enabled. Including "service-connectivity-b-platform"
+// in Tethering will break art branch check because that lib lives in framework/base.
+// Once VCN is moved to Connectivity/, "service-connectivity-b-platform" can be cleaned up.
+java_library {
+    name: "service-connectivity-b-pre-jarjar",
+    defaults: ["service-connectivity-b-pre-jarjar-defaults"],
+    libs: ["service-connectivity-pre-jarjar"],
+
+    sdk_version: "system_server_current",
+
+    // TODO(b/210962470): Bump this to B
+    min_sdk_version: "30",
+
+    apex_available: [
+        "com.android.tethering",
+    ],
+}

service/Android.bp

@@ -207,6 +207,7 @@ java_library {
     },
     visibility: [
         "//packages/modules/Connectivity/service-t",
+        "//packages/modules/Connectivity/service-b",
         "//packages/modules/Connectivity/networksecurity:__subpackages__",
         "//packages/modules/Connectivity/tests:__subpackages__",
         "//packages/modules/Connectivity/thread/service:__subpackages__",
@@ -252,7 +253,11 @@ java_defaults {
         "service-networksecurity-pre-jarjar",
         service_remoteauth_pre_jarjar_lib,
         "service-thread-pre-jarjar",
-    ],
+    ] + select(release_flag("RELEASE_MOVE_VCN_TO_MAINLINE"), {
+        true: ["service-connectivity-b-pre-jarjar"],
+        default: [],
+    }),
+
     // The below libraries are not actually needed to build since no source is compiled
     // (only combining prebuilt static_libs), but they are necessary so that R8 has the right
     // references to optimize the code. Without these, there will be missing class warnings and
@@ -338,6 +343,7 @@ java_genrule {
     name: "service-connectivity-jarjar-gen",
     tool_files: [
         ":service-connectivity-pre-jarjar{.jar}",
+        ":service-connectivity-b-pre-jarjar{.jar}",
         ":service-connectivity-tiramisu-pre-jarjar{.jar}",
         "jarjar-excludes.txt",
     ],
@@ -347,6 +353,7 @@ java_genrule {
     out: ["service_connectivity_jarjar_rules.txt"],
     cmd: "$(location jarjar-rules-generator) " +
         "$(location :service-connectivity-pre-jarjar{.jar}) " +
+        "$(location :service-connectivity-b-pre-jarjar{.jar}) " +
         "$(location :service-connectivity-tiramisu-pre-jarjar{.jar}) " +
         "--prefix android.net.connectivity " +
         "--excludes $(location jarjar-excludes.txt) " +

service/jarjar-excludes.txt

@@ -1,3 +1,4 @@
 # Classes loaded by SystemServer via their hardcoded name, so they can't be jarjared
 com\.android\.server\.ConnectivityServiceInitializer(\$.+)?
+com\.android\.server\.ConnectivityServiceInitializerB(\$.+)?
 com\.android\.server\.NetworkStatsServiceInitializer(\$.+)?