LineageOS/android_packages_modules_Connectivity
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Make a v4 nattKeepalivePacket helper method am: df347448a1 am: 8802197935

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Original change: https://android-review.googlesource.com/c/platform/packages/modules/Connectivity/+/2616794

Change-Id: If797d5ac4dfc926ca666636adf6ee9cdecd77985
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>
This commit is contained in:
chiachangwang
2023-06-07 03:32:42 +00:00
committed by Automerger Merge Worker
parent 9a0b1f2653 8802197935
commit 0c0b80c79f
1 changed files with 10 additions and 3 deletions
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13
framework/src/android/net/NattKeepalivePacketData.java
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@@ -55,15 +55,22 @@ public final class NattKeepalivePacketData extends KeepalivePacketData implement
public static NattKeepalivePacketData nattKeepalivePacket(
InetAddress srcAddress, int srcPort, InetAddress dstAddress, int dstPort)
throws InvalidPacketException {
if (dstPort != NattSocketKeepalive.NATT_PORT) {
throw new InvalidPacketException(ERROR_INVALID_PORT);
}
if (!(srcAddress instanceof Inet4Address) || !(dstAddress instanceof Inet4Address)) {
throw new InvalidPacketException(ERROR_INVALID_IP_ADDRESS);
}
if (dstPort != NattSocketKeepalive.NATT_PORT) {
throw new InvalidPacketException(ERROR_INVALID_PORT);
}
return nattKeepalivePacketv4(
(Inet4Address) srcAddress, srcPort,
(Inet4Address) dstAddress, dstPort);
}
private static NattKeepalivePacketData nattKeepalivePacketv4(
Inet4Address srcAddress, int srcPort, Inet4Address dstAddress, int dstPort)
throws InvalidPacketException {
int length = IPV4_HEADER_LENGTH + UDP_HEADER_LENGTH + 1;
ByteBuffer buf = ByteBuffer.allocate(length);
buf.order(ByteOrder.BIG_ENDIAN);