ActivityManager: add API for wifi bug report

Under certain (limited) conditions, we would like to
automatically trigger a bug report to help diagnose
Wifi problems.

The regular bugreport can't be used for this purpose,
as it takes a long time to generate. To support
lightweight auto-bug generation, add a Wifi-specific
bugreport.

Bug: 69934148
Test: manual

Manual test
-----------
- boot walleye
- enable wifi
- connect to googleguest
$ adb root
$ adb shell pkill -f 'wifi@'
- notice "Bug report #1 captured" notification
$ adb pull '/data/user_de/0/com.android.shell/files/bugreports
$ unzip bugreports/*.zip
$ grep "was the duration of 'DUMPSTATE'" bugreport*.txt
->  ------ 1.548s was the duration of 'DUMPSTATE' ------

Change-Id: If657eb8f61b16cefe717c977663438c28f515bd7

2 files changed, 22 insertions, 1 deletions

diff --git a/core/java/android/app/ActivityManager.java b/core/java/android/app/ActivityManager.java
index 455458436c2f..3e98de92c7d1 100644
--- a/core/java/android/app/ActivityManager.java
+++ b/core/java/android/app/ActivityManager.java
@@ -181,7 +181,8 @@ public class ActivityManager {
             BUGREPORT_OPTION_INTERACTIVE,
             BUGREPORT_OPTION_REMOTE,
             BUGREPORT_OPTION_WEAR,
-            BUGREPORT_OPTION_TELEPHONY
+            BUGREPORT_OPTION_TELEPHONY,
+            BUGREPORT_OPTION_WIFI
     })
     public @interface BugreportMode {}
     /**
@@ -216,6 +217,12 @@ public class ActivityManager {
     public static final int BUGREPORT_OPTION_TELEPHONY = 4;
 
     /**
+     * Takes a lightweight bugreport that only includes a few sections related to Wifi.
+     * @hide
+     */
+    public static final int BUGREPORT_OPTION_WIFI = 5;
+
+    /**
      * <a href="{@docRoot}guide/topics/manifest/meta-data-element.html">{@code
      * <meta-data>}</a> name for a 'home' Activity that declares a package that is to be
      * uninstalled in lieu of the declaring one.  The package named here must be
diff --git a/core/java/android/app/IActivityManager.aidl b/core/java/android/app/IActivityManager.aidl
index 04ee77d764aa..7043a7a89c12 100644
--- a/core/java/android/app/IActivityManager.aidl
+++ b/core/java/android/app/IActivityManager.aidl
@@ -357,6 +357,20 @@ interface IActivityManager {
      */
     void requestTelephonyBugReport(in String shareTitle, in String shareDescription);
 
+    /**
+     *  Deprecated - This method is only used by Wifi, and it will soon be replaced by a proper
+     *  bug report API.
+     *
+     *  Takes a minimal bugreport of Wifi-related state.
+     *
+     *  @param shareTitle should be a valid legible string less than 50 chars long
+     *  @param shareDescription should be less than 91 bytes when encoded into UTF-8 format
+     *
+     *  @throws IllegalArgumentException if shareTitle or shareDescription is too big or if the
+     *          parameters cannot be encoding to an UTF-8 charset.
+     */
+    void requestWifiBugReport(in String shareTitle, in String shareDescription);
+
     long inputDispatchingTimedOut(int pid, boolean aboveSystem, in String reason);
     void clearPendingBackup();
     Intent getIntentForIntentSender(in IIntentSender sender);