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Unify the mismatch in the byte order of the address.

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Bluetooth address should check MSB for AddrType based on Spec.
(BT Core Spec v 5.2 | Vol 6, Part B, 1.3 DEVICE ADDRESS)
Bluetooth address meaning is not unified in the current Android framework layer.
Because of this, cannot register scanfilter with the intended address format.

Bug: 180466950
Test: manual
Tag: #compatibility
Change-Id: I59a1b5538e4f3fea77a98cba2aa46649fc32ac6b
This commit is contained in:
Yunsik Bae
2021-07-20 06:56:50 +00:00
parent 67e10842b2
commit 4d990467b2
1 changed files with 6 additions and 6 deletions
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12
core/java/android/bluetooth/BluetoothAdapter.java
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@@ -3289,22 +3289,22 @@ public final class BluetoothAdapter {
}
/**
* Determines whether a String Bluetooth address, such as "00:43:A8:23:10:F0"
* Determines whether a String Bluetooth address, such as "F0:43:A8:23:10:00"
* is a RANDOM STATIC address.
*
* RANDOM STATIC: (addr & 0b11) == 0b11
* RANDOM RESOLVABLE: (addr & 0b11) == 0b10
* RANDOM non-RESOLVABLE: (addr & 0b11) == 0b00
* RANDOM STATIC: (addr & 0xC0) == 0xC0
* RANDOM RESOLVABLE: (addr & 0xC0) == 0x40
* RANDOM non-RESOLVABLE: (addr & 0xC0) == 0x00
*
* @param address Bluetooth address as string
* @return true if the 2 Least Significant Bits of the address equals 0b11.
* @return true if the 2 Most Significant Bits of the address equals 0xC0.
*
* @hide
*/
public static boolean isAddressRandomStatic(@NonNull String address) {
requireNonNull(address);
return checkBluetoothAddress(address)
&& (Integer.parseInt(address.split(":")[5], 16) & 0b11) == 0b11;
&& (Integer.parseInt(address.split(":")[0], 16) & 0xC0) == 0xC0;
}
@UnsupportedAppUsage