RMX3031: libinit: Fix adb in recovery mode

Signed-off-by: Nishant Kumar <www.rajsonu13@gmail.com>

BoardConfig.mk

@@ -165,6 +165,10 @@ TARGET_USERIMAGES_USE_F2FS := true
 # HWUI
 TARGET_USES_VULKAN := true
 
+# Init
+TARGET_INIT_VENDOR_LIB ?= //$(DEVICE_PATH):init_RMX3031
+TARGET_RECOVERY_DEVICE_MODULES ?= init_RMX3031
+
 # Ril
 ENABLE_VENDOR_RIL_SERVICE := true
 

libinit/Android.bp

@@ -0,0 +1,23 @@
+//
+// Copyright (C) 2021 The LineageOS Project
+//
+// SPDX-License-Identifier: Apache-2.0
+//
+
+cc_library_static {
+    name: "libinit_RMX3031",
+    srcs: [
+        "libinit_utils.cpp",
+    ],
+    whole_static_libs: ["libbase"],
+    export_include_dirs: ["include"],
+    recovery_available: true,
+}
+
+cc_library_static {
+    name: "init_RMX3031",
+    srcs: ["init_RMX3031.cpp"],
+    whole_static_libs: ["libinit_RMX3031"],
+    include_dirs: ["system/core/init"],
+    recovery_available: true,
+}

libinit/include/libinit_utils.h

@@ -0,0 +1,16 @@
+/*
+ * Copyright (C) 2021 The LineageOS Project
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+#ifndef LIBINIT_UTILS_H
+#define LIBINIT_UTILS_H
+
+#include <string>
+
+void property_override(std::string prop, std::string value, bool add = true);
+
+void set_ro_build_prop(const std::string &prop, const std::string &value, bool product = false);
+
+#endif // LIBINIT_UTILS_H

libinit/init_RMX3031.cpp

@@ -0,0 +1,18 @@
+/*
+ * Copyright (C) 2021 The LineageOS Project
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+#include <android-base/logging.h>
+#include <libinit_utils.h>
+#include "vendor_init.h"
+
+void vendor_load_properties() {
+    if (access("/system/bin/recovery", F_OK) == 0) {
+        property_override("ro.adb.secure", "0");
+        property_override("ro.debuggable", "1");
+        property_override("ro.adb.secure.recovery", "0");
+        property_override("persist.sys.usb.config", "adb");
+    }
+}

libinit/libinit_utils.cpp

@@ -0,0 +1,42 @@
+/*
+ * Copyright (C) 2021 The LineageOS Project
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+#define _REALLY_INCLUDE_SYS__SYSTEM_PROPERTIES_H_
+#include <sys/_system_properties.h>
+#include <vector>
+
+#include <libinit_utils.h>
+
+void property_override(std::string prop, std::string value, bool add) {
+    auto pi = (prop_info *) __system_property_find(prop.c_str());
+    if (pi != nullptr) {
+        __system_property_update(pi, value.c_str(), value.length());
+    } else if (add) {
+        __system_property_add(prop.c_str(), prop.length(), value.c_str(), value.length());
+    }
+}
+
+std::vector<std::string> ro_props_default_source_order = {
+    "odm.",
+    "product.",
+    "system.",
+    "system_ext.",
+    "vendor.",
+    "",
+};
+
+void set_ro_build_prop(const std::string &prop, const std::string &value, bool product) {
+    std::string prop_name;
+
+    for (const auto &source : ro_props_default_source_order) {
+        if (product)
+            prop_name = "ro.product." + source + prop;
+        else
+            prop_name = "ro." + source + "build." + prop;
+
+        property_override(prop_name, value, true);
+    }
+}