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Commit 6175faaf authored by Hansen Kurli's avatar Hansen Kurli Committed by Automerger Merge Worker
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Merge "Set TCP_MAXSEG to 1220 for better reliability." am: b7e8974c

parents 7e9fd669 b7e8974c
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+6 −0
Original line number Diff line number Diff line
@@ -94,6 +94,12 @@ Status DnsTlsSocket::tcpConnect() {
        return Status(err);
    }

    // Set TCP MSS to a suitably low value to be more reliable.
    const int v = 1220;
    if (setsockopt(mSslFd.get(), SOL_TCP, TCP_MAXSEG, &v, sizeof(v)) == -1) {
        LOG(WARNING) << "Failed to set TCP_MAXSEG: " << errno;
    }

    const Status tfo = enableSockopt(mSslFd.get(), SOL_TCP, TCP_FASTOPEN_CONNECT);
    if (!isOk(tfo) && tfo.code() != ENOPROTOOPT) {
        LOG(WARNING) << "Failed to enable TFO: " << tfo.msg();