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add support for writing the ECN control message (Linux, macOS)

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This commit is contained in:
Marten Seemann 2023-07-30 13:42:15 -04:00
parent a7f807856c
commit f919473598
8 changed files with 91 additions and 3 deletions
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36
sys_conn_oob_test.go
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@ -139,6 +139,42 @@ var _ = Describe("OOB Conn Test", func() {
Expect(utils.IsIPv4(p.remoteAddr.(*net.UDPAddr).IP)).To(BeFalse())
Expect(p.ecn).To(Equal(protocol.ECT1))
})
It("sends packets with ECN on IPv4", func() {
conn, packetChan := runServer("udp4", "localhost:0")
defer conn.Close()
c, err := net.ListenUDP("udp4", nil)
Expect(err).ToNot(HaveOccurred())
defer c.Close()
for _, val := range []protocol.ECN{protocol.ECNNon, protocol.ECT1, protocol.ECT0, protocol.ECNCE} {
_, _, err = c.WriteMsgUDP([]byte("foobar"), appendIPv4ECNMsg([]byte{}, val), conn.LocalAddr().(*net.UDPAddr))
Expect(err).ToNot(HaveOccurred())
var p receivedPacket
Eventually(packetChan).Should(Receive(&p))
Expect(p.data).To(Equal([]byte("foobar")))
Expect(p.ecn).To(Equal(val))
}
})
It("sends packets with ECN on IPv6", func() {
conn, packetChan := runServer("udp6", "[::1]:0")
defer conn.Close()
c, err := net.ListenUDP("udp6", nil)
Expect(err).ToNot(HaveOccurred())
defer c.Close()
for _, val := range []protocol.ECN{protocol.ECNNon, protocol.ECT1, protocol.ECT0, protocol.ECNCE} {
_, _, err = c.WriteMsgUDP([]byte("foobar"), appendIPv6ECNMsg([]byte{}, val), conn.LocalAddr().(*net.UDPAddr))
Expect(err).ToNot(HaveOccurred())
var p receivedPacket
Eventually(packetChan).Should(Receive(&p))
Expect(p.data).To(Equal([]byte("foobar")))
Expect(p.ecn).To(Equal(val))
}
})
})
Context("Packet Info conn", func() {