feature: Add customize spoof build vars support

Signed-off-by: GarfieldHan <2652609017@qq.com>

.gitmodules

@@ -4,3 +4,6 @@
 [submodule "module/src/main/cpp/external/LSPlt"]
 	path = module/src/main/cpp/external/LSPlt
 	url = https://github.com/LSPosed/LSPlt
+[submodule "module/src/main/cpp/external/glaze"]
+	path = module/src/main/cpp/external/glaze
+	url = https://github.com/stephenberry/glaze

module/src/main/cpp/CMakeLists.txt

@@ -40,5 +40,5 @@ target_link_libraries(${MODULE_NAME} log binder utils elf_util my_logging)
 target_compile_options(${MODULE_NAME} PRIVATE -fvisibility=hidden -fvisibility-inlines-hidden)
 
 add_library(tszygisk SHARED zygisk/main.cpp)
-target_link_libraries(tszygisk log my_logging)
+target_link_libraries(tszygisk log my_logging glaze::glaze)
 target_compile_options(tszygisk PRIVATE -fvisibility=hidden -fvisibility-inlines-hidden)

module/src/main/cpp/external/CMakeLists.txt

@@ -10,6 +10,8 @@ target_include_directories(lsplt PRIVATE LSPlt/lsplt/src/main/jni)
 target_link_libraries(lsplt PUBLIC my_logging cxx)
 # end lsplt
 
+add_subdirectory(glaze)
+
 # cxx
 set(LIBCXX_SOURCES
         algorithm.cpp
@@ -23,16 +25,16 @@ set(LIBCXX_SOURCES
         condition_variable_destructor.cpp
         #        debug.cpp
         exception.cpp
-        #        filesystem/directory_iterator.cpp
+        filesystem/directory_iterator.cpp
-        #        filesystem/int128_builtins.cpp
+        filesystem/int128_builtins.cpp
-        #        filesystem/operations.cpp
+        filesystem/operations.cpp
         functional.cpp
         future.cpp
         hash.cpp
-        #        ios.cpp
+        ios.cpp
-        #        ios.instantiations.cpp
+        ios.instantiations.cpp
-        #        iostream.cpp
+        iostream.cpp
-        #        locale.cpp
+        locale.cpp
         memory.cpp
         mutex.cpp
         mutex_destructor.cpp
@@ -65,7 +67,6 @@ set(LIBCXX_EXPORT_FLAGS
         -D_LIBCPP_BUILDING_LIBRARY
         -D_LIBCPP_DISABLE_VISIBILITY_ANNOTATIONS
         -D_LIBCXXABI_NO_EXCEPTIONS
-        -D_LIBCPP_HAS_NO_LOCALIZATION
 )
 set(LIBCXX_FLAGS
         -fvisibility-global-new-delete-hidden

module/src/main/cpp/zygisk/main.cpp

@@ -3,7 +3,9 @@
 #include <fcntl.h>
 #include <android/log.h>
 #include <string_view>
+#include <utility>
 
+#include "glaze/glaze.hpp"
 #include "logging.hpp"
 #include "zygisk.hpp"
 
@@ -12,6 +14,21 @@ using zygisk::AppSpecializeArgs;
 using zygisk::ServerSpecializeArgs;
 using namespace std::string_view_literals;
 
+struct spoof_config {
+    std::string manufacturer{"Google"};
+    std::string model{"Pixel"};
+    std::string fingerprint{"google/sailfish/sailfish:8.1.0/OPM1.171019.011/4448085:user/release-keys"};
+    std::string brand{"google"};
+    std::string product{"sailfish"};
+    std::string device{"sailfish"};
+    std::string release{"8.1.0"};
+    std::string id{"OPM1.171019.011"};
+    std::string incremental{"4448085"};
+    std::string security_patch{"2017-12-05"};
+    std::string type{"user"};
+    std::string tags{"release-keys"};
+};
+
 class TrickyStore : public zygisk::ModuleBase {
 public:
     void onLoad(Api *api, JNIEnv *env) override {
@@ -21,15 +38,30 @@ public:
 
     void preAppSpecialize(AppSpecializeArgs *args) override {
         api_->setOption(zygisk::DLCLOSE_MODULE_LIBRARY);
-
         int enabled = 0;
+        spoof_config spoofConfig{};
         {
             auto fd = api_->connectCompanion();
-            if (fd >= 0) {
+            if (fd >= 0) [[likely]] {
+                // read enabled
                 read(fd, &enabled, sizeof(enabled));
+                if (enabled) {
+                    size_t bufferSize = 0;
+                    std::string buffer;
+                    // read size first
+                    read(fd, &bufferSize, sizeof(bufferSize));
+                    // resize and receive
+                    buffer.resize(bufferSize);
+                    read(fd, buffer.data(), bufferSize);
+                    // parse
+                    if (glz::read_json(spoofConfig, buffer)) [[unlikely]] {
+                        LOGE("[preAppSpecialize] spoofConfig parse error");
+                    }
+                }
                 close(fd);
             }
         }
+
         if (!enabled) return;
         if (args->app_data_dir == nullptr) {
             return;
@@ -47,23 +79,18 @@ public:
             auto buildClass = env_->FindClass("android/os/Build");
             auto buildVersionClass = env_->FindClass("android/os/Build$VERSION");
 
-#define SET_FIELD(CLAZZ, FIELD, VALUE) ({ \
+            setField(buildClass, "MANUFACTURER", std::move(spoofConfig.manufacturer));
-            auto id = env_->GetStaticFieldID(CLAZZ, FIELD, "Ljava/lang/String;"); \
+            setField(buildClass, "MODEL", std::move(spoofConfig.model));
-            env_->SetStaticObjectField(buildClass, id, env_->NewStringUTF(VALUE)); })
+            setField(buildClass, "FINGERPRINT", std::move(spoofConfig.fingerprint));
-
+            setField(buildClass, "BRAND", std::move(spoofConfig.brand));
-            SET_FIELD(buildClass, "MANUFACTURER", "Google");
+            setField(buildClass, "PRODUCT", std::move(spoofConfig.product));
-            SET_FIELD(buildClass, "MODEL", "Pixel");
+            setField(buildClass, "DEVICE", std::move(spoofConfig.device));
-            SET_FIELD(buildClass, "FINGERPRINT",
+            setField(buildVersionClass, "RELEASE", std::move(spoofConfig.release));
-                      "google/sailfish/sailfish:8.1.0/OPM1.171019.011/4448085:user/release-keys");
+            setField(buildClass, "ID", std::move(spoofConfig.id));
-            SET_FIELD(buildClass, "BRAND", "google");
+            setField(buildVersionClass, "INCREMENTAL", std::move(spoofConfig.incremental));
-            SET_FIELD(buildClass, "PRODUCT", "sailfish");
+            setField(buildVersionClass, "SECURITY_PATCH", std::move(spoofConfig.security_patch));
-            SET_FIELD(buildClass, "DEVICE", "sailfish");
+            setField(buildClass, "TYPE", std::move(spoofConfig.type));
-            SET_FIELD(buildVersionClass, "RELEASE", "8.1.0");
+            setField(buildClass, "TAGS", std::move(spoofConfig.tags));
-            SET_FIELD(buildClass, "ID", "OPM1.171019.011");
-            SET_FIELD(buildVersionClass, "INCREMENTAL", "4448085");
-            SET_FIELD(buildVersionClass, "SECURITY_PATCH", "2017-12-05");
-            SET_FIELD(buildClass, "TYPE", "user");
-            SET_FIELD(buildClass, "TAGS", "release-keys");
         }
 
         env_->ReleaseStringUTFChars(args->nice_name, nice_name);
@@ -77,14 +104,41 @@ public:
 private:
     Api *api_;
     JNIEnv *env_;
+
+    inline void setField(jclass clazz, const char* field, std::string&& value) {
+        auto id = env_->GetStaticFieldID(clazz, field, "Ljava/lang/String;");
+        env_->SetStaticObjectField(clazz, id, env_->NewStringUTF(value.c_str()));
+    }
 };
 
 static void companion_handler(int fd) {
     int enabled = access("/data/adb/tricky_store/spoof_build_vars", F_OK) == 0;
     write(fd, &enabled, sizeof(enabled));
+
+    if (!enabled) {
+        return;
+    }
+
+    spoof_config spoofConfig{};
+    auto ec = glz::read_file_json(spoofConfig, "/data/adb/tricky_store/spoof_build_vars"sv, std::string{});
+    if (ec) [[unlikely]] {
+        LOGW("[companion_handler] Failed to parse spoof_build_vars, writing and using default spoof config...");
+        ec = glz::write_file_json<glz::opts{.prettify = true}>(spoofConfig, "/data/adb/tricky_store/spoof_build_vars"sv, std::string{});
+        if (ec) [[unlikely]] {
+            LOGW("[companion_handler] Failed to write spoof_build_vars");
+        }
+        LOGI("[write_spoof_configs@companion_handler] write done!");
+    }
+
+    std::string buffer = glz::write_json(spoofConfig).value_or("");
+    size_t bufferSize = buffer.size();
+    // Send buffer size first
+    write(fd, &bufferSize, sizeof(bufferSize));
+    // client resize string stl and receive buffer
+    write(fd, buffer.data(), bufferSize);
 }
 
 // Register our module class and the companion handler function
 REGISTER_ZYGISK_MODULE(TrickyStore)
 
-REGISTER_ZYGISK_COMPANION(companion_handler)
+REGISTER_ZYGISK_COMPANION(companion_handler)