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https://github.com/Divested-Mobile/DivestOS-Build.git
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104 lines
5.1 KiB
Diff
104 lines
5.1 KiB
Diff
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: renlord <me@renlord.com>
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Date: Fri, 15 Oct 2021 19:28:34 +0530
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Subject: [PATCH] add option of always randomizing MAC addresses
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---
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framework/api/system-current.txt | 1 +
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.../java/android/net/wifi/WifiConfiguration.java | 16 ++++++++++++----
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.../android/server/wifi/WifiConfigManager.java | 7 ++++++-
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.../server/wifi/WifiConfigurationUtil.java | 2 +-
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4 files changed, 20 insertions(+), 6 deletions(-)
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diff --git a/framework/api/system-current.txt b/framework/api/system-current.txt
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index dda74810f..855a5c53d 100644
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--- a/framework/api/system-current.txt
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+++ b/framework/api/system-current.txt
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@@ -380,6 +380,7 @@ package android.net.wifi {
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field @Deprecated public static final int METERED_OVERRIDE_METERED = 1; // 0x1
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field @Deprecated public static final int METERED_OVERRIDE_NONE = 0; // 0x0
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field @Deprecated public static final int METERED_OVERRIDE_NOT_METERED = 2; // 0x2
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+ field @Deprecated public static final int RANDOMIZATION_ALWAYS = 100; // 0x64
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field @Deprecated public static final int RANDOMIZATION_AUTO = 3; // 0x3
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field @Deprecated public static final int RANDOMIZATION_NONE = 0; // 0x0
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field @Deprecated public static final int RANDOMIZATION_NON_PERSISTENT = 2; // 0x2
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diff --git a/framework/java/android/net/wifi/WifiConfiguration.java b/framework/java/android/net/wifi/WifiConfiguration.java
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index 924cd3345..fa96b73c0 100644
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--- a/framework/java/android/net/wifi/WifiConfiguration.java
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+++ b/framework/java/android/net/wifi/WifiConfiguration.java
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@@ -1641,7 +1641,8 @@ public class WifiConfiguration implements Parcelable {
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RANDOMIZATION_NONE,
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RANDOMIZATION_PERSISTENT,
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RANDOMIZATION_NON_PERSISTENT,
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- RANDOMIZATION_AUTO})
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+ RANDOMIZATION_AUTO,
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+ RANDOMIZATION_ALWAYS})
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public @interface MacRandomizationSetting {}
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/**
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@@ -1672,16 +1673,23 @@ public class WifiConfiguration implements Parcelable {
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@SystemApi
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public static final int RANDOMIZATION_AUTO = 3;
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+ /**
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+ * @hide
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+ * Generate a randomize MAC always
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+ */
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+ @SystemApi
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+ public static final int RANDOMIZATION_ALWAYS = 100;
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+
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/**
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* Level of MAC randomization for this network.
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* One of {@link #RANDOMIZATION_NONE}, {@link #RANDOMIZATION_AUTO},
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- * {@link #RANDOMIZATION_PERSISTENT} or {@link #RANDOMIZATION_NON_PERSISTENT}.
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- * By default this field is set to {@link #RANDOMIZATION_AUTO}.
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+ * {@link #RANDOMIZATION_PERSISTENT} or {@link #RANDOMIZATION_NON_PERSISTENT} or RANDOMIZATION_ALWAYS.
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+ * By default this field is set to RANDOMIZATION_ALWAYS in GrapheneOS.
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* @hide
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*/
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@SystemApi
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@MacRandomizationSetting
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- public int macRandomizationSetting = RANDOMIZATION_AUTO;
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+ public int macRandomizationSetting = RANDOMIZATION_ALWAYS;
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/**
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* Randomized MAC address to use with this particular network
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diff --git a/service/java/com/android/server/wifi/WifiConfigManager.java b/service/java/com/android/server/wifi/WifiConfigManager.java
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index b0212133a..5f40104ce 100644
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--- a/service/java/com/android/server/wifi/WifiConfigManager.java
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+++ b/service/java/com/android/server/wifi/WifiConfigManager.java
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@@ -431,6 +431,10 @@ public class WifiConfigManager {
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return false;
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}
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+ if (config.macRandomizationSetting == WifiConfiguration.RANDOMIZATION_ALWAYS) {
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+ return true;
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+ }
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+
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// Use enhanced randomization if it's forced on by dev option
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if (mFrameworkFacade.getIntegerSetting(mContext,
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ENHANCED_MAC_RANDOMIZATION_FEATURE_FORCE_ENABLE_FLAG, 0) == 1) {
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@@ -580,7 +584,8 @@ public class WifiConfigManager {
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private MacAddress updateRandomizedMacIfNeeded(WifiConfiguration config) {
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boolean shouldUpdateMac = config.randomizedMacExpirationTimeMs
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< mClock.getWallClockMillis() || mClock.getWallClockMillis()
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- - config.randomizedMacLastModifiedTimeMs >= ENHANCED_MAC_REFRESH_MS_MAX;
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+ - config.randomizedMacLastModifiedTimeMs >= ENHANCED_MAC_REFRESH_MS_MAX ||
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+ config.macRandomizationSetting == WifiConfiguration.RANDOMIZATION_ALWAYS;
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if (!shouldUpdateMac) {
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return config.getRandomizedMacAddress();
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}
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diff --git a/service/java/com/android/server/wifi/WifiConfigurationUtil.java b/service/java/com/android/server/wifi/WifiConfigurationUtil.java
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index 3ab3ca3d0..883441cda 100644
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--- a/service/java/com/android/server/wifi/WifiConfigurationUtil.java
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+++ b/service/java/com/android/server/wifi/WifiConfigurationUtil.java
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@@ -225,7 +225,7 @@ public class WifiConfigurationUtil {
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public static boolean hasMacRandomizationSettingsChanged(WifiConfiguration existingConfig,
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WifiConfiguration newConfig) {
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if (existingConfig == null) {
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- return newConfig.macRandomizationSetting != WifiConfiguration.RANDOMIZATION_AUTO;
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+ return newConfig.macRandomizationSetting != WifiConfiguration.RANDOMIZATION_ALWAYS;
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}
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return newConfig.macRandomizationSetting != existingConfig.macRandomizationSetting;
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}
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