From bdcceb25afd63435cd1f2ddda9bab20961fe4a67 Mon Sep 17 00:00:00 2001
From: danielml <daniel@danielml.dev>
Date: Thu, 12 May 2022 01:06:04 -0700
Subject: [PATCH] porsche: libinit: Set model based on ro.boot.prjname

Change-Id: I06f9acda3fe77f57a1bc24ee5a802db0ab3b8d60
---
 BoardConfig.mk           |  3 ++
 libinit/Android.bp       | 20 +++++++++++++
 libinit/init_porsche.cpp | 61 ++++++++++++++++++++++++++++++++++++++++
 3 files changed, 84 insertions(+)
 create mode 100644 libinit/Android.bp
 create mode 100644 libinit/init_porsche.cpp

diff --git a/BoardConfig.mk b/BoardConfig.mk
index a5ac078..92d166a 100644
--- a/BoardConfig.mk
+++ b/BoardConfig.mk
@@ -69,6 +69,9 @@ BOARD_INCLUDE_RECOVERY_DTBO := true
 # GPS
 LOC_HIDL_VERSION = 4.0
 
+# Init
+TARGET_INIT_VENDOR_LIB := //$(DEVICE_PATH):libinit_porsche
+
 # Kernel
 BOARD_KERNEL_BASE    := 0x00000000
 BOARD_KERNEL_CMDLINE := \
diff --git a/libinit/Android.bp b/libinit/Android.bp
new file mode 100644
index 0000000..1e085a3
--- /dev/null
+++ b/libinit/Android.bp
@@ -0,0 +1,20 @@
+// Copyright (C) 2023 Paranoid Android
+//
+// 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.
+
+cc_library_static {
+    name: "libinit_porsche",
+    recovery_available: true,
+    shared_libs: ["libbase"],
+    srcs: ["init_porsche.cpp"],
+}
diff --git a/libinit/init_porsche.cpp b/libinit/init_porsche.cpp
new file mode 100644
index 0000000..f76a314
--- /dev/null
+++ b/libinit/init_porsche.cpp
@@ -0,0 +1,61 @@
+/*
+ * Copyright (C) 2023 Paranoid Android
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+#include <android-base/logging.h>
+#include <android-base/properties.h>
+
+#define _REALLY_INCLUDE_SYS__SYSTEM_PROPERTIES_H_
+#include <sys/_system_properties.h>
+
+using android::base::GetProperty;
+
+/*
+ * SetProperty does not allow updating read only properties and as a result
+ * does not work for our use case. Write "OverrideProperty" to do practically
+ * the same thing as "SetProperty" without this restriction.
+ */
+void OverrideProperty(const char* name, const char* value) {
+    size_t valuelen = strlen(value);
+
+    prop_info* pi = (prop_info*)__system_property_find(name);
+    if (pi != nullptr) {
+        __system_property_update(pi, value, valuelen);
+    } else {
+        __system_property_add(name, strlen(name), value, valuelen);
+    }
+}
+
+/*
+ * Only for read-only properties. Properties that can be wrote to more
+ * than once should be set in a typical init script (e.g. init.oplus.hw.rc)
+ * after the original property has been set.
+ */
+void vendor_load_properties() {
+    auto prjname = std::stoi(GetProperty("ro.boot.prjname", "0"));
+    char* build_desc;
+    char* build_fingerprint;
+    char* product_model;
+    char* product_name;
+
+    switch (prjname) {
+        case 136882:
+            product_name = "RMX3312";
+            product_model = "RMX3312";
+            build_desc = "qssi-user 13 TP1A.220905.001 1673407054945 release-keys";
+            build_fingerprint = "realme/RMX3312/RE58B2L1:13/TP1A.220905.001/S.d7a144-1-3cc75:user/release-keys";
+            break;
+        default:
+            product_name = "RMX3311EEA";
+            product_model = "RMX3311";
+            build_desc = "qssi-user 13 TP1A.220905.001 1682070307948 release-keys";
+            build_fingerprint = "realme/RMX3311EEA/RE58B2L1:13/TP1A.220905.001/S.fe5caa-da01-3c05a:user/release-keys";
+            break;
+    }
+
+    OverrideProperty("ro.product.model", product_model);
+    OverrideProperty("ro.product.name", product_name);
+    OverrideProperty("ro.build.fingerprint", build_fingerprint);
+    OverrideProperty("ro.build.description", build_desc);
+}