framework/base: Handle ASSOC-REJECT events

Disable current network and enable other saved networks(if any)
once number of ASSOC-REJECTs on an attempt to connect to a corresponding
network exceeds the threshold.

Change-Id: Iac3c1596aa800d93c55b0ac5d8070a058c3842bd

4 files changed, 45 insertions, 5 deletions

diff --git a/wifi/java/android/net/wifi/SupplicantStateTracker.java b/wifi/java/android/net/wifi/SupplicantStateTracker.java
index d1e9b67..055bfb4 100644
--- a/wifi/java/android/net/wifi/SupplicantStateTracker.java
+++ b/wifi/java/android/net/wifi/SupplicantStateTracker.java
@@ -42,6 +42,7 @@ class SupplicantStateTracker extends StateMachine {
     private WifiStateMachine mWifiStateMachine;
     private WifiConfigStore mWifiConfigStore;
     private int mAuthenticationFailuresCount = 0;
+    private int mAssociationRejectCount = 0;
     /* Indicates authentication failure in supplicant broadcast.
      * TODO: enhance auth failure reporting to include notification
      * for all type of failures: EAP, WPS & WPA networks */
@@ -50,6 +51,9 @@ class SupplicantStateTracker extends StateMachine {
     /* Maximum retries on a authentication failure notification */
     private static final int MAX_RETRIES_ON_AUTHENTICATION_FAILURE = 2;
 
+    /* Maximum retries on assoc rejection events */
+    private static final int MAX_RETRIES_ON_ASSOCIATION_REJECT = 4;
+
     /* Tracks if networks have been disabled during a connection */
     private boolean mNetworksDisabledDuringConnect = false;
 
@@ -85,14 +89,14 @@ class SupplicantStateTracker extends StateMachine {
         start();
     }
 
-    private void handleNetworkConnectionFailure(int netId) {
+    private void handleNetworkConnectionFailure(int netId, int disableReason) {
         /* If other networks disabled during connection, enable them */
         if (mNetworksDisabledDuringConnect) {
             mWifiConfigStore.enableAllNetworks();
             mNetworksDisabledDuringConnect = false;
         }
         /* Disable failed network */
-        mWifiConfigStore.disableNetwork(netId, WifiConfiguration.DISABLED_AUTH_FAILURE);
+        mWifiConfigStore.disableNetwork(netId, disableReason);
     }
 
     private void transitionOnSupplicantStateChange(StateChangeResult stateChangeResult) {
@@ -178,6 +182,10 @@ class SupplicantStateTracker extends StateMachine {
                     break;
                 case WifiManager.CONNECT_NETWORK:
                     mNetworksDisabledDuringConnect = true;
+                    mAssociationRejectCount = 0;
+                    break;
+                case WifiMonitor.ASSOCIATION_REJECTION_EVENT:
+                    mAssociationRejectCount++;
                     break;
                 default:
                     Log.e(TAG, "Ignoring " + message);
@@ -222,9 +230,17 @@ class SupplicantStateTracker extends StateMachine {
              if (mAuthenticationFailuresCount >= MAX_RETRIES_ON_AUTHENTICATION_FAILURE) {
                  Log.d(TAG, "Failed to authenticate, disabling network " +
                          stateChangeResult.networkId);
-                 handleNetworkConnectionFailure(stateChangeResult.networkId);
+                 handleNetworkConnectionFailure(stateChangeResult.networkId,
+                         WifiConfiguration.DISABLED_AUTH_FAILURE);
                  mAuthenticationFailuresCount = 0;
              }
+             else if (mAssociationRejectCount >= MAX_RETRIES_ON_ASSOCIATION_REJECT) {
+                 Log.d(TAG, "Association getting rejected, disabling network " +
+                         stateChangeResult.networkId);
+                 handleNetworkConnectionFailure(stateChangeResult.networkId,
+                         WifiConfiguration.DISABLED_ASSOCIATION_REJECT);
+                 mAssociationRejectCount = 0;
+            }
          }
     }
 
@@ -264,7 +280,8 @@ class SupplicantStateTracker extends StateMachine {
                         if (mLoopDetectCount > MAX_SUPPLICANT_LOOP_ITERATIONS) {
                             Log.d(TAG, "Supplicant loop detected, disabling network " +
                                     stateChangeResult.networkId);
-                            handleNetworkConnectionFailure(stateChangeResult.networkId);
+                            handleNetworkConnectionFailure(stateChangeResult.networkId,
+                                    WifiConfiguration.DISABLED_AUTH_FAILURE);
                         }
                         mLoopDetectIndex = state.ordinal();
                         sendSupplicantStateChangedBroadcast(state,
@@ -287,6 +304,7 @@ class SupplicantStateTracker extends StateMachine {
              if (DBG) Log.d(TAG, getName() + "\n");
              /* Reset authentication failure count */
              mAuthenticationFailuresCount = 0;
+             mAssociationRejectCount = 0;
              if (mNetworksDisabledDuringConnect) {
                  mWifiConfigStore.enableAllNetworks();
                  mNetworksDisabledDuringConnect = false;
diff --git a/wifi/java/android/net/wifi/WifiConfiguration.java b/wifi/java/android/net/wifi/WifiConfiguration.java
index bf82792..f1542e9 100644
--- a/wifi/java/android/net/wifi/WifiConfiguration.java
+++ b/wifi/java/android/net/wifi/WifiConfiguration.java
@@ -173,6 +173,8 @@ public class WifiConfiguration implements Parcelable {
     public static final int DISABLED_DHCP_FAILURE                           = 2;
     /** @hide */
     public static final int DISABLED_AUTH_FAILURE                           = 3;
+    /** @hide */
+    public static final int DISABLED_ASSOCIATION_REJECT                     = 4;
 
     /**
      * The ID number that the supplicant uses to identify this
diff --git a/wifi/java/android/net/wifi/WifiMonitor.java b/wifi/java/android/net/wifi/WifiMonitor.java
index 0b0d738..fe3c709 100644
--- a/wifi/java/android/net/wifi/WifiMonitor.java
+++ b/wifi/java/android/net/wifi/WifiMonitor.java
@@ -56,7 +56,8 @@ public class WifiMonitor {
     private static final int TERMINATING  = 6;
     private static final int DRIVER_STATE = 7;
     private static final int EAP_FAILURE  = 8;
-    private static final int UNKNOWN      = 9;
+    private static final int ASSOC_REJECT = 9;
+    private static final int UNKNOWN      = 10;
 
     /** All events coming from the supplicant start with this prefix */
     private static final String EVENT_PREFIX_STR = "CTRL-EVENT-";
@@ -153,6 +154,11 @@ public class WifiMonitor {
     private static final String EAP_AUTH_FAILURE_STR = "EAP authentication failed";
 
     /**
+     * This indicates an assoc reject event
+     */
+    private static final String ASSOC_REJECT_STR = "ASSOC-REJECT";
+
+    /**
      * Regex pattern for extracting an Ethernet-style MAC address from a string.
      * Matches a strings like the following:<pre>
      * CTRL-EVENT-CONNECTED - Connection to 00:1e:58:ec:d5:6d completed (reauth) [id=1 id_str=]</pre>
@@ -328,6 +334,8 @@ public class WifiMonitor {
     public static final int AP_STA_DISCONNECTED_EVENT            = BASE + 41;
     public static final int AP_STA_CONNECTED_EVENT               = BASE + 42;
 
+    /* Indicates assoc reject event */
+    public static final int ASSOCIATION_REJECTION_EVENT          = BASE + 43;
     /**
      * This indicates the supplicant connection for the monitor is closed
      */
@@ -429,6 +437,8 @@ public class WifiMonitor {
                     event = DRIVER_STATE;
                 else if (eventName.equals(EAP_FAILURE_STR))
                     event = EAP_FAILURE;
+                else if (eventName.equals(ASSOC_REJECT_STR))
+                    event = ASSOC_REJECT;
                 else
                     event = UNKNOWN;
 
@@ -473,6 +483,8 @@ public class WifiMonitor {
                     if (eventData.startsWith(EAP_AUTH_FAILURE_STR)) {
                         mStateMachine.sendMessage(AUTHENTICATION_FAILURE_EVENT);
                     }
+                } else if (event == ASSOC_REJECT) {
+                        mStateMachine.sendMessage(ASSOCIATION_REJECTION_EVENT);
                 } else {
                     handleEvent(event, eventData);
                 }
diff --git a/wifi/java/android/net/wifi/WifiStateMachine.java b/wifi/java/android/net/wifi/WifiStateMachine.java
index 2d9cc29..1f58cab 100644
--- a/wifi/java/android/net/wifi/WifiStateMachine.java
+++ b/wifi/java/android/net/wifi/WifiStateMachine.java
@@ -1962,6 +1962,7 @@ public class WifiStateMachine extends StateMachine {
                 case WifiMonitor.SCAN_RESULTS_EVENT:
                 case WifiMonitor.SUPPLICANT_STATE_CHANGE_EVENT:
                 case WifiMonitor.AUTHENTICATION_FAILURE_EVENT:
+                case WifiMonitor.ASSOCIATION_REJECTION_EVENT:
                 case WifiMonitor.WPS_OVERLAP_EVENT:
                 case CMD_BLACKLIST_NETWORK:
                 case CMD_CLEAR_BLACKLIST:
@@ -2698,6 +2699,7 @@ public class WifiStateMachine extends StateMachine {
                 case WifiMonitor.NETWORK_CONNECTION_EVENT:
                 case WifiMonitor.NETWORK_DISCONNECTION_EVENT:
                 case WifiMonitor.AUTHENTICATION_FAILURE_EVENT:
+                case WifiMonitor.ASSOCIATION_REJECTION_EVENT:
                 case WifiMonitor.WPS_OVERLAP_EVENT:
                 case CMD_SET_SCAN_TYPE:
                 case CMD_SET_COUNTRY_CODE:
@@ -3092,6 +3094,9 @@ public class WifiStateMachine extends StateMachine {
             if (DBG) log(getName() + message.toString() + "\n");
             StateChangeResult stateChangeResult;
             switch(message.what) {
+                case WifiMonitor.ASSOCIATION_REJECTION_EVENT:
+                    mSupplicantStateTracker.sendMessage(WifiMonitor.ASSOCIATION_REJECTION_EVENT);
+                    break;
                 case WifiMonitor.AUTHENTICATION_FAILURE_EVENT:
                     mSupplicantStateTracker.sendMessage(WifiMonitor.AUTHENTICATION_FAILURE_EVENT);
                     break;
@@ -3786,6 +3791,9 @@ public class WifiStateMachine extends StateMachine {
                     if (DBG) log("Network connection lost");
                     handleNetworkDisconnect();
                     break;
+                case WifiMonitor.ASSOCIATION_REJECTION_EVENT:
+                    if (DBG) log("Ignore Assoc reject event during WPS Connection");
+                    break;
                 case WifiMonitor.AUTHENTICATION_FAILURE_EVENT:
                     // Disregard auth failure events during WPS connection. The
                     // EAP sequence is retried several times, and there might be