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PiperOrigin-RevId: 885840090

quiche/quic/core/io/socket.h

diff --git a/quiche/quic/core/io/socket.h b/quiche/quic/core/io/socket.h
index 8debff7..8191251 100644
--- a/quiche/quic/core/io/socket.h
+++ b/quiche/quic/core/io/socket.h
@@ -163,6 +163,8 @@
 
 // Same as Send() except a specific address (`peer_address`) is specified for
 // where to send the data to. Typically used for non-connected sockets.
+// When `fd` is a raw IP socket, it's caller's responsibility to set
+// `peer_address.port()` to 0, otherwise the send operation may fail.
 absl::StatusOr<absl::string_view> SendTo(SocketFd fd,
                                          const QuicSocketAddress& peer_address,
                                          absl::string_view buffer);

quiche/quic/core/io/socket_test.cc

diff --git a/quiche/quic/core/io/socket_test.cc b/quiche/quic/core/io/socket_test.cc
index 4b89940..e94d6d6 100644
--- a/quiche/quic/core/io/socket_test.cc
+++ b/quiche/quic/core/io/socket_test.cc
@@ -324,8 +324,7 @@
   QUICHE_EXPECT_OK(socket_api::Close(socket));
 }
 
-// TODO(b/485901584): Very flaky
-TEST(SocketTest, DISABLED_SendToForRaw) {
+TEST(SocketTest, SendToForRaw) {
   SocketFd socket = CreateTestRawSocket(/*blocking=*/true);
   if (socket == kInvalidSocketFd) {
     GTEST_SKIP();
@@ -341,7 +340,7 @@
   QuicSocketAddress server_address(localhost_address, /*port=*/56362);
   std::string packet = CreateUdpPacket(client_address, server_address, "foo");
   absl::StatusOr<absl::string_view> result = socket_api::SendTo(
-      socket, QuicSocketAddress(localhost_address, /*port=*/56362), packet);
+      socket, QuicSocketAddress(localhost_address, /*port=*/0), packet);
 
   // Expect at least some data to be sent successfully.
   QUICHE_ASSERT_OK(result.status());
@@ -350,8 +349,7 @@
   QUICHE_EXPECT_OK(socket_api::Close(socket));
 }
 
-// TODO(b/485901584): Very flaky
-TEST(SocketTest, DISABLED_SendToForRawWithIpHeader) {
+TEST(SocketTest, SendToForRawWithIpHeader) {
   SocketFd socket = CreateTestRawSocket(/*blocking=*/true);
   if (socket == kInvalidSocketFd) {
     GTEST_SKIP();
@@ -368,7 +366,7 @@
       CreateIpPacket(client_address.host(), server_address.host(),
                      CreateUdpPacket(client_address, server_address, "foo"));
   absl::StatusOr<absl::string_view> result = socket_api::SendTo(
-      socket, QuicSocketAddress(localhost_address, /*port=*/56362), packet);
+      socket, QuicSocketAddress(localhost_address, /*port=*/0), packet);
 
   // Expect at least some data to be sent successfully.
   QUICHE_ASSERT_OK(result.status());