Include calling uid proc state in CameraService reject log.

Bug: 123762288
Test: builds.
Change-Id: Ibaf080a7c60e52af014664f882cc37e0920353fe

services/camera/libcameraservice/CameraService.cpp

@@ -968,11 +968,14 @@ Status CameraService::validateClientPermissionsLocked(const String8& cameraId,
 
     // Make sure the UID is in an active state to use the camera
     if (!mUidPolicy->isUidActive(callingUid, String16(clientName8))) {
+        int32_t procState = mUidPolicy->getProcState(callingUid);
         ALOGE("Access Denial: can't use the camera from an idle UID pid=%d, uid=%d",
             clientPid, clientUid);
         return STATUS_ERROR_FMT(ERROR_DISABLED,
-                "Caller \"%s\" (PID %d, UID %d) cannot open camera \"%s\" from background",
-                clientName8.string(), clientUid, clientPid, cameraId.string());
+                "Caller \"%s\" (PID %d, UID %d) cannot open camera \"%s\" from background ("
+                "calling UID %d proc state %" PRId32 ")",
+                clientName8.string(), clientUid, clientPid, cameraId.string(),
+                callingUid, procState);
     }
 
     // If sensor privacy is enabled then prevent access to the camera
@@ -2731,6 +2734,19 @@ bool CameraService::UidPolicy::isUidActiveLocked(uid_t uid, String16 callingPack
     return active;
 }
 
+int32_t CameraService::UidPolicy::getProcState(uid_t uid) {
+    Mutex::Autolock _l(mUidLock);
+    return getProcStateLocked(uid);
+}
+
+int32_t CameraService::UidPolicy::getProcStateLocked(uid_t uid) {
+    int32_t procState = ActivityManager::PROCESS_STATE_UNKNOWN;
+    if (mMonitoredUids.find(uid) != mMonitoredUids.end()) {
+        procState = mMonitoredUids[uid].first;
+    }
+    return procState;
+}
+
 void CameraService::UidPolicy::UidPolicy::addOverrideUid(uid_t uid,
         String16 callingPackage, bool active) {
     updateOverrideUid(uid, callingPackage, active, true);

services/camera/libcameraservice/CameraService.h

@@ -542,6 +542,7 @@ private:
         void unregisterSelf();
 
         bool isUidActive(uid_t uid, String16 callingPackage);
+        int32_t getProcState(uid_t uid);
 
         void onUidGone(uid_t uid, bool disabled);
         void onUidActive(uid_t uid);
@@ -558,6 +559,7 @@ private:
         virtual void binderDied(const wp<IBinder> &who);
     private:
         bool isUidActiveLocked(uid_t uid, String16 callingPackage);
+        int32_t getProcStateLocked(uid_t uid);
         void updateOverrideUid(uid_t uid, String16 callingPackage, bool active, bool insert);
 
         Mutex mUidLock;