From a37c4d2796779444a59f6cac8384b62e66e78f1e Mon Sep 17 00:00:00 2001
From: JW Wang <wangchun@google.com>
Date: Sat, 18 Feb 2023 15:16:17 +0800
Subject: [PATCH] Export active dsu slot to system prop

The prop can be consumed by init scripts to do customized setup:

on property:ro.gsid.dsu_slot=oemtest
    # Do setup for test
on property:ro.gsid.dsu_slot=oemdemo
    # Do setup for demo

Bug: 277691885
Test: m
Change-Id: I7bd78b9ba31021b27d57c6f092dad5d7ebf6e59b
---
 init/init.cpp | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/init/init.cpp b/init/init.cpp
index be1ebeed7..da63fdc3b 100644
--- a/init/init.cpp
+++ b/init/init.cpp
@@ -1043,6 +1043,12 @@ int SecondStageMain(int argc, char** argv) {
     SetProperty(gsi::kGsiBootedProp, is_running);
     auto is_installed = android::gsi::IsGsiInstalled() ? "1" : "0";
     SetProperty(gsi::kGsiInstalledProp, is_installed);
+    if (android::gsi::IsGsiRunning()) {
+        std::string dsu_slot;
+        if (android::gsi::GetActiveDsu(&dsu_slot)) {
+            SetProperty(gsi::kDsuSlotProp, dsu_slot);
+        }
+    }
 
     am.QueueBuiltinAction(SetupCgroupsAction, "SetupCgroups");
     am.QueueBuiltinAction(SetKptrRestrictAction, "SetKptrRestrict");