From 79e850e70785c3f35fb4fd7e697e633d4d3edd3e Mon Sep 17 00:00:00 2001
From: mroetsc <dev@mattes-roetschke.de>
Date: Wed, 3 Jun 2026 17:43:34 +0200
Subject: [PATCH] Telecom: allow Android Auto to resolve PhoneAccounts for SIM
 disambiguation

canGetPhoneAccount() blocks AA since it cannot hold
READ_PRIVILEGED_PHONE_STATE
as a sandboxed app. Mirrors the existing carve-out in
getUserSelectedOutgoingPhoneAccount.

Fixes: GrapheneOS/os-issue-tracker#3166
---
 src/com/android/server/telecom/TelecomServiceImpl.java | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/src/com/android/server/telecom/TelecomServiceImpl.java b/src/com/android/server/telecom/TelecomServiceImpl.java
index 46e4ff712..28a8e3a8f 100644
--- a/src/com/android/server/telecom/TelecomServiceImpl.java
+++ b/src/com/android/server/telecom/TelecomServiceImpl.java
@@ -3887,6 +3887,16 @@ private boolean canGetPhoneAccount(String callingPackage, PhoneAccountHandle acc
             // ignore
         }
 
+        // Needed for calls with multi sim phones, since AA cannot hold
+        // READ_PRIVILEGED_PHONE_STATE as a sandboxed app, causing getPhoneAccount()
+        // to fail and SIM selection to never appear. Mirrors getUserSelectedOutgoingPhoneAccount.
+        try {
+            mContext.enforceCallingOrSelfPermission(android.Manifest.permission.READ_PRIVILEGED_PHONE_STATE_ANDROID_AUTO, null);
+            return true;
+        } catch (SecurityException e) {
+            // ignore
+        }
+
         try {
             mContext.enforceCallingOrSelfPermission(READ_PRIVILEGED_PHONE_STATE, null);
             return true;