revive android build system (#1339)

* it lives?

* clean up

* add readme and add x86_64 to abi filters

* disable route poking on android

* make it compile on android

* it compiles!!111

* typofix

* re-enable ccache for android

CMakeLists.txt

@@ -275,7 +275,7 @@ pkg_check_modules(SD libsystemd)
 # Default WITH_SYSTEMD to true if we found it
 option(WITH_SYSTEMD "enable systemd integration for sd_notify" ${SD_FOUND})
 
-if(WITH_SYSTEMD)
+if(WITH_SYSTEMD AND (NOT ANDROID))
   if(NOT SD_FOUND)
     message(FATAL_ERROR "libsystemd not found")
   endif()

android/AndroidManifest.xml

@@ -3,11 +3,7 @@
     package="network.loki.lokinet"
     android:installLocation="auto"
     android:versionCode="1"
-    android:versionName="0.3.2">
-
-    <uses-sdk
-        android:minSdkVersion="14"
-        android:targetSdkVersion="28" />
+    android:versionName="0.8.0">
 
     <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
     <uses-permission android:name="android.permission.INTERNET" /> <!-- normal perm, per https://developer.android.com/guide/topics/permissions/normal-permissions.html -->

android/build.gradle

@@ -2,9 +2,10 @@ buildscript {
     repositories {
         mavenCentral()
         jcenter()
+        google()
     }
     dependencies {
-        classpath 'com.android.tools.build:gradle:2.3.3'
+        classpath 'com.android.tools.build:gradle:4.0.1'
     }
 }
 
@@ -16,31 +17,33 @@ repositories {
     maven {
         url 'https://maven.google.com'
     }
+    google()
 }
 
 android {
     compileSdkVersion 28
-    buildToolsVersion "28.0.1"
     defaultConfig {
         applicationId "network.loki.lokinet"
         targetSdkVersion 28
         minSdkVersion 23
         versionCode 1
-        versionName "0.4.0"
-        ndk {
-            abiFilters 'armeabi'             
-        }
+        versionName '0.8.0'
         externalNativeBuild {
             cmake {
-                targets "lokinetandroid"
-                arguments "-DANDROID=ON", "-DANDROID_STL=c++_static", "-DANDROID_ARM_NEON=TRUE", "-DLIBUV_ROOT="  + libuvsrc, "-DANDROID_TOOLCHAIN=clang", "-DANDROID_ARM_MODE=arm"
-                cppFlags "-fexceptions -std=c++14 -frtti"
+                // targets "lokinet-android"
+                arguments "-DWITH_LTO=OFF", "-DCXXOPTS_BUILD_TESTS=OFF","-DWITH_TESTS=OFF", "-DCMAKE_CROSSCOMPILING=ON", "-DNATIVE_BUILD=OFF", "-DANDROID=ON", "-DANDROID_STL=c++_static",  "-DBUILD_STATIC_DEPS=ON", "-DBUILD_SHARED_LIBS=OFF", "-DSTATIC_LINK=ON", "-DDOWNLOAD_UV=FORCE", "-DANDROID_ARM_MODE=arm"
+                cppFlags "-std=c++17"
+                abiFilters 'x86', 'x86_64', 'armeabi-v7a', 'arm64-v8a'
+                // abiFilters 'armeabi-v7a'
+                // abiFilters 'arm64-v8a', 'x86_64', 'armeabi-v7a'
             }
         }
-        packagingOptions{
-            doNotStrip "*/armeabi/*.so"
-            doNotStrip "*/armeabi-v7a/*.so"
-            doNotStrip "*/x86/*.so"
+
+
+    }
+    externalNativeBuild {
+        cmake {
+            path "../CMakeLists.txt"
         }
     }
     sourceSets {
@@ -63,13 +66,16 @@ android {
             minifyEnabled true
             //signingConfig signingConfigs.jeff
             proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-project.txt'
+            debuggable false
         }
-    }
-    externalNativeBuild {
-        cmake {
-            path lokinetCMake
+        debug {
+            // jniDebuggable true
         }
     }
+    compileOptions {
+        sourceCompatibility JavaVersion.VERSION_1_8
+        targetCompatibility JavaVersion.VERSION_1_8
+    }
 }
 
 

android/readme.md

@@ -0,0 +1,33 @@
+# lokinet android
+
+this directory contains basic stuff for lokinet on android.
+
+## Prerequsites
+
+To build you need the following:
+
+* Gradle (6.x)
+* Android SDK (latest version)
+* Android NDK (latest version)
+
+## Building
+
+Next set up the path to Android SDK and NDK in `local.properties`
+
+```
+sdk.dir=/path/to/android/sdk
+ndk.dir=/path/to/android/ndk
+```
+
+Then build:
+
+    $ gradle assemble
+
+This fetches a large amount (several dozen Gigabytes) of files from some 
+server somewhere dumping it on your filesystem to make the thing do the 
+building, then proceeds to peg all your cores for several dozen minutes
+while it does the required incantations to build 2 apks.
+
+The build outputs apks to to subdirectories in `build/outputs/apk/`
+one called `debug` for debug builds and one called `release` for release builds.
+

android/src/network/loki/lokinet/LokiNetActivity.java

@@ -42,7 +42,7 @@ public class LokiNetActivity extends Activity {
 		super.onCreate(savedInstanceState);
 		textView = new TextView(this);
 		setContentView(textView);
-		System.loadLibrary("lokinetandroid");
+		System.loadLibrary("lokinet-android");
 	}
 
 

cmake/StaticBuild.cmake

@@ -68,6 +68,7 @@ if(CMAKE_CXX_COMPILER_LAUNCHER)
   set(deps_cxx "${CMAKE_CXX_COMPILER_LAUNCHER} ${deps_cxx}")
 endif()
 
+
 function(expand_urls output source_file)
   set(expanded)
   foreach(mirror ${ARGN})
@@ -100,6 +101,46 @@ if(CMAKE_CROSSCOMPILING)
     set(cross_rc "WINDRES=${CMAKE_RC_COMPILER}")
   endif()
 endif()
+if(ANDROID)
+  set(android_toolchain_suffix linux-android)
+  set(android_compiler_suffix linux-android23)
+  if(CMAKE_ANDROID_ARCH_ABI MATCHES x86_64)
+    set(android_machine x86_64)
+    set(cross_host "--host=x86_64-linux-android")
+    set(android_compiler_prefix x86_64)
+    set(android_compiler_suffix linux-android23)
+    set(android_toolchain_prefix x86_64)
+    set(android_toolchain_suffix linux-android)
+  elseif(CMAKE_ANDROID_ARCH_ABI MATCHES x86)
+    set(android_machine i686)
+    set(cross_host "--host=i686-linux-android")
+    set(android_compiler_prefix i686)
+    set(android_compiler_suffix linux-android23)
+    set(android_toolchain_prefix i686)
+    set(android_toolchain_suffix linux-android)
+  elseif(CMAKE_ANDROID_ARCH_ABI MATCHES armeabi-v7a)
+    set(android_machine armv7)
+    set(cross_host "--host=armv7a-linux-androideabi")
+    set(android_compiler_prefix armv7a)
+    set(android_compiler_suffix linux-androideabi23)
+    set(android_toolchain_prefix arm)
+    set(android_toolchain_suffix linux-androideabi)
+  elseif(CMAKE_ANDROID_ARCH_ABI MATCHES arm64-v8a)
+    set(android_machine aarch64)
+    set(cross_host "--host=aarch64-linux-android")
+    set(android_compiler_prefix aarch64)
+    set(android_compiler_suffix linux-android23)
+    set(android_toolchain_prefix aarch64)
+    set(android_toolchain_suffix linux-android)
+  else()
+    message(FATAL_ERROR "unknown android arch: ${CMAKE_ANDROID_ARCH_ABI}")
+  endif()
+  set(deps_cc "${CMAKE_ANDROID_NDK}/toolchains/llvm/prebuilt/linux-x86_64/bin/${android_compiler_prefix}-${android_compiler_suffix}-clang")
+  set(deps_cxx "${CMAKE_ANDROID_NDK}/toolchains/llvm/prebuilt/linux-x86_64/bin/${android_compiler_prefix}-${android_compiler_suffix}-clang++")
+  set(deps_ld "${CMAKE_ANDROID_NDK}/toolchains/llvm/prebuilt/linux-x86_64/bin/${android_compiler_prefix}-${android_toolchain_suffix}-ld")
+  set(deps_ranlib "${CMAKE_ANDROID_NDK}/toolchains/llvm/prebuilt/linux-x86_64/bin/${android_toolchain_prefix}-${android_toolchain_suffix}-ranlib")
+  set(deps_ar "${CMAKE_ANDROID_NDK}/toolchains/llvm/prebuilt/linux-x86_64/bin/${android_toolchain_prefix}-${android_toolchain_suffix}-ar")
+endif()
 
 
 # Builds a target; takes the target name (e.g. "readline") and builds it in an external project with
@@ -149,11 +190,14 @@ if(CMAKE_CROSSCOMPILING)
     set(openssl_system_env SYSTEM=MINGW64 RC=${CMAKE_RC_COMPILER} AR=${ARCH_TRIPLET}-ar RANLIB=${ARCH_TRIPLET}-ranlib)
   elseif(ARCH_TRIPLET STREQUAL i686-w64-mingw32)
     set(openssl_system_env SYSTEM=MINGW32 RC=${CMAKE_RC_COMPILER} AR=${ARCH_TRIPLET}-ar RANLIB=${ARCH_TRIPLET}-ranlib)
+  elseif(ANDROID)
+    set(openssl_system_env SYSTEM=Linux MACHINE=${android_machine} LD=${deps_ld} RANLIB=${deps_ranlib} AR=${deps_ar})
+    set(openssl_extra_opts no-asm)
   endif()
 endif()
 build_external(openssl
   CONFIGURE_COMMAND ${CMAKE_COMMAND} -E env CC=${deps_cc} ${openssl_system_env} ./config
-    --prefix=${DEPS_DESTDIR} no-shared no-capieng no-dso no-dtls1 no-ec_nistp_64_gcc_128 no-gost
+    --prefix=${DEPS_DESTDIR} ${openssl_extra_opts} no-shared no-capieng no-dso no-dtls1 no-ec_nistp_64_gcc_128 no-gost
     no-heartbeats no-md2 no-rc5 no-rdrand no-rfc3779 no-sctp no-ssl-trace no-ssl2 no-ssl3
     no-static-engine no-tests no-weak-ssl-ciphers no-zlib no-zlib-dynamic "CFLAGS=-O2 ${flto}"
   INSTALL_COMMAND make install_sw
@@ -197,7 +241,8 @@ endif()
 
 
 
-build_external(sodium)
+build_external(sodium CONFIGURE_COMMAND ./configure ${cross_host} ${cross_rc} --prefix=${DEPS_DESTDIR} --disable-shared
+          --enable-static --with-pic "CC=${deps_cc}" "CFLAGS=-O2 ${flto}")
 add_static_target(sodium sodium_external libsodium.a)
 
 build_external(sqlite3)
@@ -208,6 +253,7 @@ if(ZMQ_VERSION VERSION_LESS 4.3.4 AND CMAKE_CROSSCOMPILING AND ARCH_TRIPLET MATC
   set(zmq_patch
     PATCH_COMMAND patch -p1 -i ${PROJECT_SOURCE_DIR}/contrib/cross/patches/libzmq-mingw-closesocket.patch)
 endif()
+
 build_external(zmq
   DEPENDS sodium_external
   ${zmq_patch}

cmake/unix.cmake

@@ -1,5 +1,7 @@
-if(NOT UNIX)
-  return()
+if(NOT ANDROID)
+  if(NOT UNIX)
+    return()
+  endif()
 endif()
 
 include(CheckCXXSourceCompiles)
@@ -35,8 +37,10 @@ elseif(DOWNLOAD_UV)
   add_subdirectory(${LIBUV_ROOT})
   set(LIBUV_INCLUDE_DIRS ${LIBUV_ROOT}/include)
   set(LIBUV_LIBRARY uv_a)
-  add_definitions(-D_LARGEFILE_SOURCE)
-  add_definitions(-D_FILE_OFFSET_BITS=64)
+  if(NOT ANDROID)
+    add_definitions(-D_LARGEFILE_SOURCE)
+    add_definitions(-D_FILE_OFFSET_BITS=64)
+  endif()
 endif()
 include_directories(${LIBUV_INCLUDE_DIRS})
 

crypto/CMakeLists.txt

@@ -46,7 +46,7 @@ set(NTRU_AVX_SRC
 include(CheckCXXCompilerFlag)
 check_cxx_compiler_flag(-mavx2 COMPILER_SUPPORTS_AVX2)
 check_cxx_compiler_flag(-mfma COMPILER_SUPPORTS_FMA)
-if(COMPILER_SUPPORTS_AVX2 AND COMPILER_SUPPORTS_FMA)
+if(COMPILER_SUPPORTS_AVX2 AND COMPILER_SUPPORTS_FMA AND (NOT ANDROID))
   target_sources(lokinet-cryptography PRIVATE ${NTRU_AVX_SRC})
   set_property(SOURCE ${NTRU_AVX_SRC} APPEND PROPERTY COMPILE_FLAGS "-mavx2 -mfma")
   message(STATUS "Building libntrup with runtime AVX2/FMA support")

include/llarp.h

@@ -85,14 +85,13 @@ extern "C"
   void
   llarp_vpn_io_close_async(struct llarp_vpn_io* io);
 
-  /*
   /// give main context a vpn io for mobile when it is reader to do io with
   /// associated info tries to give the vpn io to endpoint with name epName a
   /// deferred call to llarp_vpn_io.injected is queued unconditionally
   /// thread safe
   bool
   llarp_main_inject_vpn_by_name(
-      struct llarp_main* m,
+      struct llarp::Context* m,
       const char* epName,
       struct llarp_vpn_io* io,
       struct llarp_vpn_ifaddr_info info);
@@ -100,11 +99,10 @@ extern "C"
   /// give main context a vpn io on its default endpoint
   static bool
   llarp_main_inject_default_vpn(
-      struct llarp_main* m, struct llarp_vpn_io* io, struct llarp_vpn_ifaddr_info info)
+      struct llarp::Context* m, struct llarp_vpn_io* io, struct llarp_vpn_ifaddr_info info)
   {
-    return llarp_main_inject_vpn_by_name(m, llarp_main_get_default_endpoint_name(m), io, info);
+    return llarp_main_inject_vpn_by_name(m, "default", io, info);
   }
-  */
 
 #ifdef __cplusplus
 }

jni/CMakeLists.txt

@@ -1,4 +1,5 @@
 add_library(lokinet-android
+    SHARED
     lokinet_config.cpp
     lokinet_daemon.cpp
     lokinet_vpn.cpp)

jni/lokinet_config.cpp

@@ -7,30 +7,29 @@ extern "C"
   JNIEXPORT jobject JNICALL
   Java_network_loki_lokinet_LokinetConfig_Obtain(JNIEnv* env, jclass)
   {
-    llarp_config* conf = llarp_default_config();
+    auto conf = new llarp::Config();
     if (conf == nullptr)
       return nullptr;
-    return env->NewDirectByteBuffer(conf, llarp_config_size());
+    return env->NewDirectByteBuffer(conf, sizeof(llarp::Config));
   }
 
   JNIEXPORT void JNICALL
   Java_network_loki_lokinet_LokinetConfig_Free(JNIEnv* env, jclass, jobject buf)
   {
-    llarp_config_free(FromBuffer<llarp_config>(env, buf));
+    auto ptr = FromBuffer<llarp::Config>(env, buf);
+    delete ptr;
   }
 
   JNIEXPORT jboolean JNICALL
   Java_network_loki_lokinet_LokinetConfig_Load(JNIEnv* env, jobject self, jstring fname)
   {
-    llarp_config* conf = GetImpl<llarp_config>(env, self);
+    auto conf = GetImpl<llarp::Config>(env, self);
     if (conf == nullptr)
       return JNI_FALSE;
-    return VisitStringAsStringView<jboolean>(
-        env, fname, [conf](llarp::string_view val) -> jboolean {
-          const auto filename = llarp::string_view_string(val);
-          if (llarp_config_read_file(conf, filename.c_str()))
-            return JNI_TRUE;
-          return JNI_FALSE;
-        });
+    return VisitStringAsStringView<jboolean>(env, fname, [conf](std::string_view val) -> jboolean {
+      if (conf->Load(val, false, llarp::GetDefaultDataDir()))
+        return JNI_TRUE;
+      return JNI_FALSE;
+    });
   }
 }

jni/lokinet_daemon.cpp

@@ -1,72 +1,81 @@
 #include "network_loki_lokinet_LokinetDaemon.h"
 #include "lokinet_jni_common.hpp"
 #include "lokinet_jni_vpnio.hpp"
-#include <llarp.h>
+#include <llarp.hpp>
 
 extern "C"
 {
   JNIEXPORT jobject JNICALL
   Java_network_loki_lokinet_LokinetDaemon_Obtain(JNIEnv* env, jclass)
   {
-    llarp_main* ptr = llarp_main_default_init();
+    auto* ptr = new llarp::Context();
     if (ptr == nullptr)
       return nullptr;
-    return env->NewDirectByteBuffer(ptr, llarp_main_size());
+    return env->NewDirectByteBuffer(ptr, sizeof(llarp::Context));
   }
 
   JNIEXPORT void JNICALL
   Java_network_loki_lokinet_LokinetDaemon_Free(JNIEnv* env, jclass, jobject buf)
   {
-    llarp_main* ptr = FromBuffer<llarp_main>(env, buf);
-    llarp_main_free(ptr);
+    auto ptr = FromBuffer<llarp::Context>(env, buf);
+    delete ptr;
   }
 
   JNIEXPORT jboolean JNICALL
   Java_network_loki_lokinet_LokinetDaemon_Configure(JNIEnv* env, jobject self, jobject conf)
   {
-    llarp_main* ptr = GetImpl<llarp_main>(env, self);
-    llarp_config* config = GetImpl<llarp_config>(env, conf);
+    auto ptr = GetImpl<llarp::Context>(env, self);
+    auto config = GetImpl<llarp::Config>(env, conf);
     if (ptr == nullptr || config == nullptr)
       return JNI_FALSE;
-    if (llarp_main_configure(ptr, config))
-      return JNI_TRUE;
-    return llarp_main_setup(ptr) == 0 ? JNI_TRUE : JNI_FALSE;
+    try
+    {
+      llarp::RuntimeOptions opts{};
+      ptr->Configure(*config);
+      ptr->Setup(opts);
+    }
+    catch (...)
+    {
+      return JNI_FALSE;
+    }
+    return JNI_TRUE;
   }
 
   JNIEXPORT jint JNICALL
   Java_network_loki_lokinet_LokinetDaemon_Mainloop(JNIEnv* env, jobject self)
   {
-    static llarp_main_runtime_opts opts;
-    llarp_main* ptr = GetImpl<llarp_main>(env, self);
+    auto ptr = GetImpl<llarp::Context>(env, self);
     if (ptr == nullptr)
       return -1;
-    return llarp_main_run(ptr, opts);
+    llarp::RuntimeOptions opts{};
+    return ptr->Run(opts);
   }
 
   JNIEXPORT jboolean JNICALL
   Java_network_loki_lokinet_LokinetDaemon_IsRunning(JNIEnv* env, jobject self)
   {
-    llarp_main* ptr = GetImpl<llarp_main>(env, self);
-    return (ptr != nullptr && llarp_main_is_running(ptr)) ? JNI_TRUE : JNI_FALSE;
+    auto ptr = GetImpl<llarp::Context>(env, self);
+    return (ptr != nullptr && ptr->IsUp()) ? JNI_TRUE : JNI_FALSE;
   }
 
   JNIEXPORT jboolean JNICALL
   Java_network_loki_lokinet_LokinetDaemon_Stop(JNIEnv* env, jobject self)
   {
-    llarp_main* ptr = GetImpl<llarp_main>(env, self);
+    auto ptr = GetImpl<llarp::Context>(env, self);
     if (ptr == nullptr)
       return JNI_FALSE;
-    if (not llarp_main_is_running(ptr))
+    if (not ptr->IsUp())
       return JNI_FALSE;
-    llarp_main_stop(ptr);
-    return llarp_main_is_running(ptr) ? JNI_FALSE : JNI_TRUE;
+    ptr->CloseAsync();
+    ptr->Wait();
+    return ptr->IsUp() ? JNI_FALSE : JNI_TRUE;
   }
 
   JNIEXPORT jboolean JNICALL
   Java_network_loki_lokinet_LokinetDaemon_InjectVPN(JNIEnv* env, jobject self, jobject vpn)
   {
-    llarp_main* ptr = GetImpl<llarp_main>(env, self);
-    lokinet_jni_vpnio* impl = GetImpl<lokinet_jni_vpnio>(env, vpn);
+    auto ptr = GetImpl<llarp::Context>(env, self);
+    auto impl = GetImpl<lokinet_jni_vpnio>(env, vpn);
     if (ptr == nullptr || impl == nullptr)
       return JNI_FALSE;
     if (impl->info.netmask == 0)

jni/lokinet_jni_common.hpp

@@ -2,7 +2,7 @@
 #define LOKINET_JNI_COMMON_HPP
 
 #include <jni.h>
-#include <util/string_view.hpp>
+#include <string_view>
 #include <functional>
 
 /// visit string as native bytes
@@ -21,7 +21,7 @@ VisitStringAsStringView(JNIEnv* env, jobject str, V visit)
   const size_t length = env->GetArrayLength(stringJbytes);
   jbyte* pBytes = env->GetByteArrayElements(stringJbytes, NULL);
 
-  T result = visit(llarp::string_view((const char*)pBytes, length));
+  T result = visit(std::string_view((const char*)pBytes, length));
 
   env->ReleaseByteArrayElements(stringJbytes, pBytes, JNI_ABORT);
   env->DeleteLocalRef(stringJbytes);

jni/lokinet_jni_vpnio.hpp

@@ -4,7 +4,7 @@
 #include <llarp.h>
 #include <memory>
 #include <future>
-#include <util/string_view.hpp>
+#include <string_view>
 #include <algorithm>
 #include <jni.h>
 
@@ -56,7 +56,7 @@ namespace lokinet
     }
 
     bool
-    Init(llarp_main* ptr)
+    Init(llarp::Context* ptr)
     {
       if (Ready())
         return false;
@@ -114,14 +114,14 @@ namespace lokinet
     }
 
     void
-    SetIfName(llarp::string_view val)
+    SetIfName(std::string_view val)
     {
       const auto sz = std::min(val.size(), sizeof(info.ifname));
       std::copy_n(val.data(), sz, info.ifname);
     }
 
     void
-    SetIfAddr(llarp::string_view val)
+    SetIfAddr(std::string_view val)
     {
       const auto sz = std::min(val.size(), sizeof(info.ifaddr));
       std::copy_n(val.data(), sz, info.ifaddr);

jni/lokinet_vpn.cpp

@@ -2,6 +2,8 @@
 #include "lokinet_jni_vpnio.hpp"
 #include "lokinet_jni_common.hpp"
 #include <net/ip.hpp>
+#include <net/ip_packet.hpp>
+#include <string_view>
 
 extern "C"
 {
@@ -69,12 +71,12 @@ extern "C"
     if (vpn == nullptr)
       return;
     VisitObjectMemberStringAsStringView<bool>(
-        env, info, "ifaddr", [vpn](llarp::string_view val) -> bool {
+        env, info, "ifaddr", [vpn](std::string_view val) -> bool {
           vpn->SetIfAddr(val);
           return true;
         });
     VisitObjectMemberStringAsStringView<bool>(
-        env, info, "ifname", [vpn](llarp::string_view val) -> bool {
+        env, info, "ifname", [vpn](std::string_view val) -> bool {
           vpn->SetIfName(val);
           return true;
         });

llarp/net/route.cpp

@@ -6,8 +6,10 @@
 #include <unistd.h>
 #include <net/if.h>
 #include <arpa/inet.h>
+#ifndef ANDROID
 #include <sys/socket.h>
 #include <linux/rtnetlink.h>
+#endif
 #include <net/net.hpp>
 #include <exception>
 #include <charconv>
@@ -76,6 +78,7 @@ namespace llarp::net
 #endif
 
 #ifdef __linux__
+#ifndef ANDROID
   struct NLSocket
   {
     NLSocket() : fd(socket(AF_NETLINK, SOCK_DGRAM, NETLINK_ROUTE))
@@ -217,12 +220,13 @@ namespace llarp::net
   }
 
 #endif
-
+#endif
   void
   AddRoute(std::string ip, std::string gateway)
   {
     LogInfo("Add route: ", ip, " via ", gateway);
 #ifdef __linux__
+#ifndef ANDROID
     NLSocket sock;
     int default_gw = 0;
     int if_idx = 0;
@@ -233,6 +237,7 @@ namespace llarp::net
     read_addr(gateway.c_str(), &gw_addr);
     read_addr(ip.c_str(), &to_addr);
     do_route(sock.fd, nl_cmd, nl_flags, &to_addr, &gw_addr, default_gw, if_idx);
+#endif
 #else
     std::stringstream ss;
 #if _WIN32
@@ -251,6 +256,7 @@ namespace llarp::net
   {
     LogInfo("Delete route: ", ip, " via ", gateway);
 #ifdef __linux__
+#ifndef ANDROID
     NLSocket sock;
     int default_gw = 0;
     int if_idx = 0;
@@ -261,6 +267,7 @@ namespace llarp::net
     read_addr(gateway.c_str(), &gw_addr);
     read_addr(ip.c_str(), &to_addr);
     do_route(sock.fd, nl_cmd, nl_flags, &to_addr, &gw_addr, default_gw, if_idx);
+#endif
 #else
     std::stringstream ss;
 #if _WIN32
@@ -279,6 +286,7 @@ namespace llarp::net
   {
     LogInfo("Add default route via ", ifname);
 #ifdef __linux__
+#ifndef ANDROID
     NLSocket sock;
     int default_gw = 1;
     int if_idx = if_nametoindex(ifname.c_str());
@@ -292,6 +300,7 @@ namespace llarp::net
     int nl_flags = NLM_F_CREATE | NLM_F_EXCL;
     read_addr(maybe->toHost().c_str(), &gw_addr);
     do_route(sock.fd, nl_cmd, nl_flags, &to_addr, &gw_addr, default_gw, if_idx);
+#endif
 #elif _WIN32
     ifname.back()++;
     Execute("route ADD 0.0.0.0 MASK 128.0.0.0 " + ifname);
@@ -309,6 +318,7 @@ namespace llarp::net
   {
     LogInfo("Remove default route via ", ifname);
 #ifdef __linux__
+#ifndef ANDROID
     NLSocket sock;
     int default_gw = 1;
     int if_idx = if_nametoindex(ifname.c_str());
@@ -322,6 +332,7 @@ namespace llarp::net
     int nl_flags = 0;
     read_addr(maybe->toHost().c_str(), &gw_addr);
     do_route(sock.fd, nl_cmd, nl_flags, &to_addr, &gw_addr, default_gw, if_idx);
+#endif
 #elif _WIN32
     ifname.back()++;
     Execute("route DELETE 0.0.0.0 MASK 128.0.0.0 " + ifname);

llarp/util/logging/android_logger.cpp

@@ -16,7 +16,9 @@ namespace llarp
         return;
       case eLogTrace:
         ss << "[TRC] ";
-        break case eLogDebug : ss << "[DBG] ";
+        break;
+      case eLogDebug:
+        ss << "[DBG] ";
         break;
       case eLogInfo:
         ss << "[NFO] ";
@@ -50,8 +52,6 @@ namespace llarp
     switch (lvl)
     {
       case eLogTrace:
-        __android_log_write(ANDROID_LOG_TRACE, str.c_str(), msg.c_str());
-        return;
       case eLogDebug:
         __android_log_write(ANDROID_LOG_DEBUG, str.c_str(), msg.c_str());
         return;

llarp/util/logging/android_logger.hpp

@@ -24,6 +24,9 @@ namespace llarp
     PostLog(std::stringstream&) const override;
 
     void Tick(llarp_time_t) override;
+
+    void
+    ImmediateFlush() override{};
   };
 }  // namespace llarp