35 lines
1.4 KiB
Kotlin
35 lines
1.4 KiB
Kotlin
package be.mygod.vpnhotspot.net
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import android.os.Build
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import android.provider.Settings
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import be.mygod.vpnhotspot.App.Companion.app
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import be.mygod.vpnhotspot.root.SettingsGlobalPut
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import timber.log.Timber
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/**
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* It's hard to change tethering rules with Tethering hardware acceleration enabled for now.
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*
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* See also:
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* android.provider.Settings.Global.TETHER_OFFLOAD_DISABLED
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* https://android.googlesource.com/platform/frameworks/base/+/android-8.1.0_r1/services/core/java/com/android/server/connectivity/tethering/OffloadHardwareInterface.java#45
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* https://android.googlesource.com/platform/hardware/qcom/data/ipacfg-mgr/+/master/msm8998/ipacm/src/IPACM_OffloadManager.cpp
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*/
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object TetherOffloadManager {
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val supported by lazy {
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Build.VERSION.SDK_INT >= 27 || try {
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Settings.Global::class.java.getDeclaredField("TETHER_OFFLOAD_DISABLED").get(null).let {
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require(it == TETHER_OFFLOAD_DISABLED) { "Unknown field $it" }
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}
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true
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} catch (_: NoSuchFieldException) {
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false
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} catch (e: Exception) {
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Timber.w(e)
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false
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}
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}
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private const val TETHER_OFFLOAD_DISABLED = "tether_offload_disabled"
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val enabled get() = Settings.Global.getInt(app.contentResolver, TETHER_OFFLOAD_DISABLED, 0) == 0
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suspend fun setEnabled(value: Boolean) = SettingsGlobalPut.int(TETHER_OFFLOAD_DISABLED, if (value) 0 else 1)
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}
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