mirror of
https://github.com/refraction-networking/uquic.git
synced 2025-04-04 20:57:36 +03:00
a302d7ba4d
* enable DPLPMTUD on macOS dual-stack sockets https://datatracker.ietf.org/doc/draft-seemann-tsvwg-udp-fragmentation/ contains details on how IP fragmentation is handled on different platforms. * only enable DF on macOS Sequoia (and newer) dual-stack sockets * fix macOS version numbers * fix comment in MTU integration test * skip dual-stack test on old macOS versions
99 lines
2.5 KiB
Go
99 lines
2.5 KiB
Go
package quic
|
|
|
|
import (
|
|
"net"
|
|
"testing"
|
|
|
|
"github.com/stretchr/testify/require"
|
|
)
|
|
|
|
func TestIPFragmentation(t *testing.T) {
|
|
sink, err := net.ListenUDP("udp", &net.UDPAddr{Port: 0})
|
|
require.NoError(t, err)
|
|
t.Cleanup(func() { sink.Close() })
|
|
sinkPort := sink.LocalAddr().(*net.UDPAddr).Port
|
|
|
|
canSendIPv4 := func(conn *net.UDPConn) bool {
|
|
_, err := conn.WriteTo([]byte("hello"), &net.UDPAddr{IP: net.IPv4(127, 0, 0, 1), Port: sinkPort})
|
|
return err == nil
|
|
}
|
|
|
|
canSendIPv6 := func(conn *net.UDPConn) bool {
|
|
_, err := conn.WriteTo([]byte("hello"), &net.UDPAddr{IP: net.IPv6loopback, Port: sinkPort})
|
|
return err == nil
|
|
}
|
|
|
|
t.Run("udp4", func(t *testing.T) {
|
|
conn, err := net.ListenUDP("udp4", &net.UDPAddr{IP: net.IPv4(127, 0, 0, 1), Port: 0})
|
|
require.NoError(t, err)
|
|
defer conn.Close()
|
|
|
|
require.True(t, canSendIPv4(conn))
|
|
require.False(t, canSendIPv6(conn))
|
|
|
|
raw, err := conn.SyscallConn()
|
|
require.NoError(t, err)
|
|
canDF, _ := setDF(raw)
|
|
require.True(t, canDF)
|
|
})
|
|
|
|
t.Run("udp6", func(t *testing.T) {
|
|
conn, err := net.ListenUDP("udp6", &net.UDPAddr{IP: net.IPv6loopback, Port: 0})
|
|
require.NoError(t, err)
|
|
defer conn.Close()
|
|
|
|
require.False(t, canSendIPv4(conn))
|
|
require.True(t, canSendIPv6(conn))
|
|
|
|
raw, err := conn.SyscallConn()
|
|
require.NoError(t, err)
|
|
canDF, _ := setDF(raw)
|
|
require.True(t, canDF)
|
|
})
|
|
|
|
t.Run("udp, dual-stack", func(t *testing.T) {
|
|
if version, err := getMacOSVersion(); err != nil || version < macOSVersion15 {
|
|
t.Skipf("skipping on darwin %d", version-9)
|
|
}
|
|
|
|
conn, err := net.ListenUDP("udp", &net.UDPAddr{Port: 0})
|
|
require.NoError(t, err)
|
|
defer conn.Close()
|
|
|
|
require.True(t, canSendIPv4(conn))
|
|
require.True(t, canSendIPv6(conn))
|
|
|
|
raw, err := conn.SyscallConn()
|
|
require.NoError(t, err)
|
|
canDF, _ := setDF(raw)
|
|
require.True(t, canDF)
|
|
})
|
|
|
|
t.Run("udp, listening on IPv4", func(t *testing.T) {
|
|
conn, err := net.ListenUDP("udp", &net.UDPAddr{IP: net.IPv4(127, 0, 0, 1), Port: 0})
|
|
require.NoError(t, err)
|
|
defer conn.Close()
|
|
|
|
require.True(t, canSendIPv4(conn))
|
|
require.False(t, canSendIPv6(conn))
|
|
|
|
raw, err := conn.SyscallConn()
|
|
require.NoError(t, err)
|
|
canDF, _ := setDF(raw)
|
|
require.True(t, canDF)
|
|
})
|
|
|
|
t.Run("udp, listening on IPv6", func(t *testing.T) {
|
|
conn, err := net.ListenUDP("udp6", &net.UDPAddr{IP: net.IPv6loopback, Port: 0})
|
|
require.NoError(t, err)
|
|
defer conn.Close()
|
|
|
|
require.False(t, canSendIPv4(conn))
|
|
require.True(t, canSendIPv6(conn))
|
|
|
|
raw, err := conn.SyscallConn()
|
|
require.NoError(t, err)
|
|
canDF, _ := setDF(raw)
|
|
require.True(t, canDF)
|
|
})
|
|
}
|