LineageOS/android_packages_modules_Connectivity
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Merge "[TCPKeepalive] Fill correct TOS and TTL value"

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This commit is contained in:
Mark Chien
2019-03-25 13:10:17 +00:00
committed by Gerrit Code Review
parent 66bc22760a b5a2b8076a
commit 13cc9e442e
2 changed files with 28 additions and 4 deletions
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9
services/core/java/com/android/server/connectivity/TcpKeepaliveController.java
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@@ -23,7 +23,10 @@ import static android.os.MessageQueue.OnFileDescriptorEventListener.EVENT_ERROR;
import static android.os.MessageQueue.OnFileDescriptorEventListener.EVENT_INPUT;
import static android.system.OsConstants.ENOPROTOOPT;
import static android.system.OsConstants.FIONREAD;
import static android.system.OsConstants.IPPROTO_IP;
import static android.system.OsConstants.IPPROTO_TCP;
import static android.system.OsConstants.IP_TOS;
import static android.system.OsConstants.IP_TTL;
import static android.system.OsConstants.TIOCOUTQ;
import android.annotation.NonNull;
@@ -193,6 +196,12 @@ public class TcpKeepaliveController {
trw = NetworkUtils.getTcpRepairWindow(fd);
tcpDetails.rcvWnd = trw.rcvWnd;
tcpDetails.rcvWndScale = trw.rcvWndScale;
if (tcpDetails.srcAddress.length == 4 /* V4 address length */) {
// Query TOS.
tcpDetails.tos = Os.getsockoptInt(fd, IPPROTO_IP, IP_TOS);
// Query TTL.
tcpDetails.ttl = Os.getsockoptInt(fd, IPPROTO_IP, IP_TTL);
}
} catch (ErrnoException e) {
Log.e(TAG, "Exception reading TCP state from socket", e);
if (e.errno == ENOPROTOOPT) {