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fix DONT_FRAGMENT error when using a IPv6 connection on Windows

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The syscall setting the IP_DONTFRAGMENT socket option will fail if the
underlying connection is a IPv6 connection. Since Go doesn't allow us to
distinguish between IPv6 and dual-stack connections, we can only ignore the
error here.
This commit is contained in:
Marten Seemann
2021-05-11 12:33:40 -07:00
parent 50746dbea6
commit 22a703b669
2 changed files with 19 additions and 13 deletions
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14
conn_windows_test.go
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@@ -10,13 +10,23 @@ import (
)
var _ = Describe("Windows Conn Test", func() {
It("try newConn", func() {
It("works on IPv4", func() {
addr, err := net.ResolveUDPAddr("udp4", "localhost:0")
Expect(err).ToNot(HaveOccurred())
udpConn, err := net.ListenUDP("udp4", addr)
Expect(err).ToNot(HaveOccurred())
conn, err := newConn(udpConn)
Expect(err).ToNot(HaveOccurred())
_ = conn.Close()
Expect(conn.Close()).To(Succeed())
})
It("works on IPv6", func() {
addr, err := net.ResolveUDPAddr("udp6", "[::1]:0")
Expect(err).ToNot(HaveOccurred())
udpConn, err := net.ListenUDP("udp6", addr)
Expect(err).ToNot(HaveOccurred())
conn, err := newConn(udpConn)
Expect(err).ToNot(HaveOccurred())
Expect(conn.Close()).To(Succeed())
})
})