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set IP_PMTUDISC_PROBE instead of dontFragment (i.e. PMTUDISC_DO)

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Summary:
mvfst will need to handle pmtu in an app specific way. So just set DF bits but
not pmtu.

Reviewed By: siyengar

Differential Revision: D17624134

fbshipit-source-id: 14f445bbb6a971efb8a3d550c84c3d4af53f8517
This commit is contained in:
Udip Pant
2019-09-27 13:12:56 -07:00
committed by Facebook Github Bot
parent 2bd01800f3
commit e3b792e7f1
4 changed files with 5 additions and 28 deletions
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4
quic/server/test/QuicServerTest.cpp
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@@ -67,7 +67,7 @@ class SimpleQuicServerWorkerTest : public Test {
folly::test::MockAsyncUDPSocket* rawSocket_{nullptr};
};
TEST_F(SimpleQuicServerWorkerTest, DontFragment) {
TEST_F(SimpleQuicServerWorkerTest, TurnOffPMTU) {
auto sock = std::make_unique<folly::test::MockAsyncUDPSocket>(&eventbase_);
rawSocket_ = sock.get();
DCHECK(sock->getEventBase());
@@ -79,7 +79,7 @@ TEST_F(SimpleQuicServerWorkerTest, DontFragment) {
folly::SocketAddress addr("::1", 0);
// We check versions in bind()
worker_->setSupportedVersions({QuicVersion::MVFST});
EXPECT_CALL(*rawSocket_, dontFragment(true)).Times(1);
EXPECT_CALL(*rawSocket_, setDFAndTurnOffPMTU()).Times(1);
worker_->bind(addr);
}