| // Copyright 2009 The Go Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style |
| // license that can be found in the LICENSE file. |
| |
| package net |
| |
| import ( |
| "flag" |
| "io" |
| "os" |
| "runtime" |
| "testing" |
| "time" |
| ) |
| |
| func skipServerTest(net, unixsotype, addr string, ipv6, ipv4map, linuxOnly bool) bool { |
| switch runtime.GOOS { |
| case "linux": |
| case "nacl", "plan9", "windows": |
| // "unix" sockets are not supported on Windows and Plan 9. |
| if net == unixsotype { |
| return true |
| } |
| default: |
| if net == unixsotype && linuxOnly { |
| return true |
| } |
| } |
| switch addr { |
| case "", "0.0.0.0", "[::ffff:0.0.0.0]", "[::]": |
| if testing.Short() || !*testExternal { |
| return true |
| } |
| } |
| if ipv6 && !supportsIPv6 { |
| return true |
| } |
| if ipv4map && !supportsIPv4map { |
| return true |
| } |
| return false |
| } |
| |
| var streamConnServerTests = []struct { |
| snet string // server side |
| saddr string |
| cnet string // client side |
| caddr string |
| ipv6 bool // test with underlying AF_INET6 socket |
| ipv4map bool // test with IPv6 IPv4-mapping functionality |
| empty bool // test with empty data |
| linuxOnly bool // test with abstract unix domain socket, a Linux-ism |
| }{ |
| {snet: "tcp", saddr: "", cnet: "tcp", caddr: "127.0.0.1"}, |
| {snet: "tcp", saddr: "0.0.0.0", cnet: "tcp", caddr: "127.0.0.1"}, |
| {snet: "tcp", saddr: "[::ffff:0.0.0.0]", cnet: "tcp", caddr: "127.0.0.1"}, |
| {snet: "tcp", saddr: "[::]", cnet: "tcp", caddr: "[::1]", ipv6: true}, |
| |
| {snet: "tcp", saddr: "", cnet: "tcp", caddr: "[::1]", ipv4map: true}, |
| {snet: "tcp", saddr: "0.0.0.0", cnet: "tcp", caddr: "[::1]", ipv4map: true}, |
| {snet: "tcp", saddr: "[::ffff:0.0.0.0]", cnet: "tcp", caddr: "[::1]", ipv4map: true}, |
| {snet: "tcp", saddr: "[::]", cnet: "tcp", caddr: "127.0.0.1", ipv4map: true}, |
| |
| {snet: "tcp", saddr: "", cnet: "tcp4", caddr: "127.0.0.1"}, |
| {snet: "tcp", saddr: "0.0.0.0", cnet: "tcp4", caddr: "127.0.0.1"}, |
| {snet: "tcp", saddr: "[::ffff:0.0.0.0]", cnet: "tcp4", caddr: "127.0.0.1"}, |
| {snet: "tcp", saddr: "[::]", cnet: "tcp6", caddr: "[::1]", ipv6: true}, |
| |
| {snet: "tcp", saddr: "", cnet: "tcp6", caddr: "[::1]", ipv4map: true}, |
| {snet: "tcp", saddr: "0.0.0.0", cnet: "tcp6", caddr: "[::1]", ipv4map: true}, |
| {snet: "tcp", saddr: "[::ffff:0.0.0.0]", cnet: "tcp6", caddr: "[::1]", ipv4map: true}, |
| {snet: "tcp", saddr: "[::]", cnet: "tcp4", caddr: "127.0.0.1", ipv4map: true}, |
| |
| {snet: "tcp", saddr: "127.0.0.1", cnet: "tcp", caddr: "127.0.0.1"}, |
| {snet: "tcp", saddr: "[::ffff:127.0.0.1]", cnet: "tcp", caddr: "127.0.0.1"}, |
| {snet: "tcp", saddr: "[::1]", cnet: "tcp", caddr: "[::1]", ipv6: true}, |
| |
| {snet: "tcp4", saddr: "", cnet: "tcp4", caddr: "127.0.0.1"}, |
| {snet: "tcp4", saddr: "0.0.0.0", cnet: "tcp4", caddr: "127.0.0.1"}, |
| {snet: "tcp4", saddr: "[::ffff:0.0.0.0]", cnet: "tcp4", caddr: "127.0.0.1"}, |
| |
| {snet: "tcp4", saddr: "127.0.0.1", cnet: "tcp4", caddr: "127.0.0.1"}, |
| |
| {snet: "tcp6", saddr: "", cnet: "tcp6", caddr: "[::1]", ipv6: true}, |
| {snet: "tcp6", saddr: "[::]", cnet: "tcp6", caddr: "[::1]", ipv6: true}, |
| |
| {snet: "tcp6", saddr: "[::1]", cnet: "tcp6", caddr: "[::1]", ipv6: true}, |
| |
| {snet: "unix", saddr: testUnixAddr(), cnet: "unix", caddr: testUnixAddr()}, |
| {snet: "unix", saddr: "@gotest2/net", cnet: "unix", caddr: "@gotest2/net.local", linuxOnly: true}, |
| } |
| |
| func TestStreamConnServer(t *testing.T) { |
| for _, tt := range streamConnServerTests { |
| if skipServerTest(tt.snet, "unix", tt.saddr, tt.ipv6, tt.ipv4map, tt.linuxOnly) { |
| continue |
| } |
| |
| listening := make(chan string) |
| done := make(chan int) |
| switch tt.snet { |
| case "tcp", "tcp4", "tcp6": |
| tt.saddr += ":0" |
| case "unix": |
| os.Remove(tt.saddr) |
| os.Remove(tt.caddr) |
| } |
| |
| go runStreamConnServer(t, tt.snet, tt.saddr, listening, done) |
| taddr := <-listening // wait for server to start |
| |
| switch tt.cnet { |
| case "tcp", "tcp4", "tcp6": |
| _, port, err := SplitHostPort(taddr) |
| if err != nil { |
| t.Fatalf("SplitHostPort(%q) failed: %v", taddr, err) |
| } |
| taddr = tt.caddr + ":" + port |
| } |
| |
| runStreamConnClient(t, tt.cnet, taddr, tt.empty) |
| <-done // make sure server stopped |
| |
| switch tt.snet { |
| case "unix": |
| os.Remove(tt.saddr) |
| os.Remove(tt.caddr) |
| } |
| } |
| } |
| |
| var seqpacketConnServerTests = []struct { |
| net string |
| saddr string // server address |
| caddr string // client address |
| empty bool // test with empty data |
| linuxOnly bool // test with abstract unix domain socket, a Linux-ism |
| }{ |
| {net: "unixpacket", saddr: testUnixAddr(), caddr: testUnixAddr()}, |
| {net: "unixpacket", saddr: "@gotest4/net", caddr: "@gotest4/net.local", linuxOnly: true}, |
| } |
| |
| func TestSeqpacketConnServer(t *testing.T) { |
| switch runtime.GOOS { |
| case "darwin", "nacl", "openbsd", "plan9", "windows": |
| fallthrough |
| case "freebsd": // FreeBSD 8 doesn't support unixpacket |
| t.Skipf("skipping test on %q", runtime.GOOS) |
| } |
| |
| for _, tt := range seqpacketConnServerTests { |
| if runtime.GOOS != "linux" && tt.linuxOnly { |
| continue |
| } |
| listening := make(chan string) |
| done := make(chan int) |
| switch tt.net { |
| case "unixpacket": |
| os.Remove(tt.saddr) |
| os.Remove(tt.caddr) |
| } |
| |
| go runStreamConnServer(t, tt.net, tt.saddr, listening, done) |
| taddr := <-listening // wait for server to start |
| |
| runStreamConnClient(t, tt.net, taddr, tt.empty) |
| <-done // make sure server stopped |
| |
| switch tt.net { |
| case "unixpacket": |
| os.Remove(tt.saddr) |
| os.Remove(tt.caddr) |
| } |
| } |
| } |
| |
| func runStreamConnServer(t *testing.T, net, laddr string, listening chan<- string, done chan<- int) { |
| defer close(done) |
| l, err := Listen(net, laddr) |
| if err != nil { |
| t.Errorf("Listen(%q, %q) failed: %v", net, laddr, err) |
| listening <- "<nil>" |
| return |
| } |
| defer l.Close() |
| listening <- l.Addr().String() |
| |
| echo := func(rw io.ReadWriter, done chan<- int) { |
| buf := make([]byte, 1024) |
| for { |
| n, err := rw.Read(buf[0:]) |
| if err != nil || n == 0 || string(buf[:n]) == "END" { |
| break |
| } |
| rw.Write(buf[0:n]) |
| } |
| close(done) |
| } |
| |
| run: |
| for { |
| c, err := l.Accept() |
| if err != nil { |
| t.Logf("Accept failed: %v", err) |
| continue run |
| } |
| echodone := make(chan int) |
| go echo(c, echodone) |
| <-echodone // make sure echo stopped |
| c.Close() |
| break run |
| } |
| } |
| |
| func runStreamConnClient(t *testing.T, net, taddr string, isEmpty bool) { |
| c, err := Dial(net, taddr) |
| if err != nil { |
| t.Fatalf("Dial(%q, %q) failed: %v", net, taddr, err) |
| } |
| defer c.Close() |
| c.SetReadDeadline(time.Now().Add(1 * time.Second)) |
| |
| var wb []byte |
| if !isEmpty { |
| wb = []byte("StreamConnClient by Dial\n") |
| } |
| if n, err := c.Write(wb); err != nil || n != len(wb) { |
| t.Fatalf("Write failed: %v, %v; want %v, <nil>", n, err, len(wb)) |
| } |
| |
| rb := make([]byte, 1024) |
| if n, err := c.Read(rb[0:]); err != nil || n != len(wb) { |
| t.Fatalf("Read failed: %v, %v; want %v, <nil>", n, err, len(wb)) |
| } |
| |
| // Send explicit ending for unixpacket. |
| // Older Linux kernels do not stop reads on close. |
| switch net { |
| case "unixpacket": |
| c.Write([]byte("END")) |
| } |
| } |
| |
| // Do not test empty datagrams by default. |
| // It causes unexplained timeouts on some systems, |
| // including Snow Leopard. I think that the kernel |
| // doesn't quite expect them. |
| var testDatagram = flag.Bool("datagram", false, "whether to test udp and unixgram") |
| |
| var datagramPacketConnServerTests = []struct { |
| snet string // server side |
| saddr string |
| cnet string // client side |
| caddr string |
| ipv6 bool // test with underlying AF_INET6 socket |
| ipv4map bool // test with IPv6 IPv4-mapping functionality |
| dial bool // test with Dial or DialUnix |
| empty bool // test with empty data |
| linuxOnly bool // test with abstract unix domain socket, a Linux-ism |
| }{ |
| {snet: "udp", saddr: "", cnet: "udp", caddr: "127.0.0.1"}, |
| {snet: "udp", saddr: "0.0.0.0", cnet: "udp", caddr: "127.0.0.1"}, |
| {snet: "udp", saddr: "[::ffff:0.0.0.0]", cnet: "udp", caddr: "127.0.0.1"}, |
| {snet: "udp", saddr: "[::]", cnet: "udp", caddr: "[::1]", ipv6: true}, |
| |
| {snet: "udp", saddr: "", cnet: "udp", caddr: "[::1]", ipv4map: true}, |
| {snet: "udp", saddr: "0.0.0.0", cnet: "udp", caddr: "[::1]", ipv4map: true}, |
| {snet: "udp", saddr: "[::ffff:0.0.0.0]", cnet: "udp", caddr: "[::1]", ipv4map: true}, |
| {snet: "udp", saddr: "[::]", cnet: "udp", caddr: "127.0.0.1", ipv4map: true}, |
| |
| {snet: "udp", saddr: "", cnet: "udp4", caddr: "127.0.0.1"}, |
| {snet: "udp", saddr: "0.0.0.0", cnet: "udp4", caddr: "127.0.0.1"}, |
| {snet: "udp", saddr: "[::ffff:0.0.0.0]", cnet: "udp4", caddr: "127.0.0.1"}, |
| {snet: "udp", saddr: "[::]", cnet: "udp6", caddr: "[::1]", ipv6: true}, |
| |
| {snet: "udp", saddr: "", cnet: "udp6", caddr: "[::1]", ipv4map: true}, |
| {snet: "udp", saddr: "0.0.0.0", cnet: "udp6", caddr: "[::1]", ipv4map: true}, |
| {snet: "udp", saddr: "[::ffff:0.0.0.0]", cnet: "udp6", caddr: "[::1]", ipv4map: true}, |
| {snet: "udp", saddr: "[::]", cnet: "udp4", caddr: "127.0.0.1", ipv4map: true}, |
| |
| {snet: "udp", saddr: "127.0.0.1", cnet: "udp", caddr: "127.0.0.1"}, |
| {snet: "udp", saddr: "[::ffff:127.0.0.1]", cnet: "udp", caddr: "127.0.0.1"}, |
| {snet: "udp", saddr: "[::1]", cnet: "udp", caddr: "[::1]", ipv6: true}, |
| |
| {snet: "udp4", saddr: "", cnet: "udp4", caddr: "127.0.0.1"}, |
| {snet: "udp4", saddr: "0.0.0.0", cnet: "udp4", caddr: "127.0.0.1"}, |
| {snet: "udp4", saddr: "[::ffff:0.0.0.0]", cnet: "udp4", caddr: "127.0.0.1"}, |
| |
| {snet: "udp4", saddr: "127.0.0.1", cnet: "udp4", caddr: "127.0.0.1"}, |
| |
| {snet: "udp6", saddr: "", cnet: "udp6", caddr: "[::1]", ipv6: true}, |
| {snet: "udp6", saddr: "[::]", cnet: "udp6", caddr: "[::1]", ipv6: true}, |
| |
| {snet: "udp6", saddr: "[::1]", cnet: "udp6", caddr: "[::1]", ipv6: true}, |
| |
| {snet: "udp", saddr: "127.0.0.1", cnet: "udp", caddr: "127.0.0.1", dial: true}, |
| {snet: "udp", saddr: "127.0.0.1", cnet: "udp", caddr: "127.0.0.1", empty: true}, |
| {snet: "udp", saddr: "127.0.0.1", cnet: "udp", caddr: "127.0.0.1", dial: true, empty: true}, |
| |
| {snet: "udp", saddr: "[::1]", cnet: "udp", caddr: "[::1]", ipv6: true, dial: true}, |
| {snet: "udp", saddr: "[::1]", cnet: "udp", caddr: "[::1]", ipv6: true, empty: true}, |
| {snet: "udp", saddr: "[::1]", cnet: "udp", caddr: "[::1]", ipv6: true, dial: true, empty: true}, |
| |
| {snet: "unixgram", saddr: testUnixAddr(), cnet: "unixgram", caddr: testUnixAddr()}, |
| {snet: "unixgram", saddr: testUnixAddr(), cnet: "unixgram", caddr: testUnixAddr(), dial: true}, |
| {snet: "unixgram", saddr: testUnixAddr(), cnet: "unixgram", caddr: testUnixAddr(), empty: true}, |
| {snet: "unixgram", saddr: testUnixAddr(), cnet: "unixgram", caddr: testUnixAddr(), dial: true, empty: true}, |
| |
| {snet: "unixgram", saddr: "@gotest6/net", cnet: "unixgram", caddr: "@gotest6/net.local", linuxOnly: true}, |
| } |
| |
| func TestDatagramPacketConnServer(t *testing.T) { |
| if !*testDatagram { |
| return |
| } |
| |
| for _, tt := range datagramPacketConnServerTests { |
| if skipServerTest(tt.snet, "unixgram", tt.saddr, tt.ipv6, tt.ipv4map, tt.linuxOnly) { |
| continue |
| } |
| |
| listening := make(chan string) |
| done := make(chan int) |
| switch tt.snet { |
| case "udp", "udp4", "udp6": |
| tt.saddr += ":0" |
| case "unixgram": |
| os.Remove(tt.saddr) |
| os.Remove(tt.caddr) |
| } |
| |
| go runDatagramPacketConnServer(t, tt.snet, tt.saddr, listening, done) |
| taddr := <-listening // wait for server to start |
| |
| switch tt.cnet { |
| case "udp", "udp4", "udp6": |
| _, port, err := SplitHostPort(taddr) |
| if err != nil { |
| t.Fatalf("SplitHostPort(%q) failed: %v", taddr, err) |
| } |
| taddr = tt.caddr + ":" + port |
| tt.caddr += ":0" |
| } |
| if tt.dial { |
| runDatagramConnClient(t, tt.cnet, tt.caddr, taddr, tt.empty) |
| } else { |
| runDatagramPacketConnClient(t, tt.cnet, tt.caddr, taddr, tt.empty) |
| } |
| <-done // tell server to stop |
| <-done // make sure server stopped |
| |
| switch tt.snet { |
| case "unixgram": |
| os.Remove(tt.saddr) |
| os.Remove(tt.caddr) |
| } |
| } |
| } |
| |
| func runDatagramPacketConnServer(t *testing.T, net, laddr string, listening chan<- string, done chan<- int) { |
| c, err := ListenPacket(net, laddr) |
| if err != nil { |
| t.Errorf("ListenPacket(%q, %q) failed: %v", net, laddr, err) |
| listening <- "<nil>" |
| done <- 1 |
| return |
| } |
| defer c.Close() |
| listening <- c.LocalAddr().String() |
| |
| buf := make([]byte, 1024) |
| run: |
| for { |
| c.SetReadDeadline(time.Now().Add(10 * time.Millisecond)) |
| n, ra, err := c.ReadFrom(buf[0:]) |
| if nerr, ok := err.(Error); ok && nerr.Timeout() { |
| select { |
| case done <- 1: |
| break run |
| default: |
| continue run |
| } |
| } |
| if err != nil { |
| break run |
| } |
| if _, err = c.WriteTo(buf[0:n], ra); err != nil { |
| t.Errorf("WriteTo(%v) failed: %v", ra, err) |
| break run |
| } |
| } |
| done <- 1 |
| } |
| |
| func runDatagramConnClient(t *testing.T, net, laddr, taddr string, isEmpty bool) { |
| var c Conn |
| var err error |
| switch net { |
| case "udp", "udp4", "udp6": |
| c, err = Dial(net, taddr) |
| if err != nil { |
| t.Fatalf("Dial(%q, %q) failed: %v", net, taddr, err) |
| } |
| case "unixgram": |
| c, err = DialUnix(net, &UnixAddr{Name: laddr, Net: net}, &UnixAddr{Name: taddr, Net: net}) |
| if err != nil { |
| t.Fatalf("DialUnix(%q, {%q, %q}) failed: %v", net, laddr, taddr, err) |
| } |
| } |
| defer c.Close() |
| c.SetReadDeadline(time.Now().Add(1 * time.Second)) |
| |
| var wb []byte |
| if !isEmpty { |
| wb = []byte("DatagramConnClient by Dial\n") |
| } |
| if n, err := c.Write(wb[0:]); err != nil || n != len(wb) { |
| t.Fatalf("Write failed: %v, %v; want %v, <nil>", n, err, len(wb)) |
| } |
| |
| rb := make([]byte, 1024) |
| if n, err := c.Read(rb[0:]); err != nil || n != len(wb) { |
| t.Fatalf("Read failed: %v, %v; want %v, <nil>", n, err, len(wb)) |
| } |
| } |
| |
| func runDatagramPacketConnClient(t *testing.T, net, laddr, taddr string, isEmpty bool) { |
| var ra Addr |
| var err error |
| switch net { |
| case "udp", "udp4", "udp6": |
| ra, err = ResolveUDPAddr(net, taddr) |
| if err != nil { |
| t.Fatalf("ResolveUDPAddr(%q, %q) failed: %v", net, taddr, err) |
| } |
| case "unixgram": |
| ra, err = ResolveUnixAddr(net, taddr) |
| if err != nil { |
| t.Fatalf("ResolveUxixAddr(%q, %q) failed: %v", net, taddr, err) |
| } |
| } |
| c, err := ListenPacket(net, laddr) |
| if err != nil { |
| t.Fatalf("ListenPacket(%q, %q) faild: %v", net, laddr, err) |
| } |
| defer c.Close() |
| c.SetReadDeadline(time.Now().Add(1 * time.Second)) |
| |
| var wb []byte |
| if !isEmpty { |
| wb = []byte("DatagramPacketConnClient by ListenPacket\n") |
| } |
| if n, err := c.WriteTo(wb[0:], ra); err != nil || n != len(wb) { |
| t.Fatalf("WriteTo(%v) failed: %v, %v; want %v, <nil>", ra, n, err, len(wb)) |
| } |
| |
| rb := make([]byte, 1024) |
| if n, _, err := c.ReadFrom(rb[0:]); err != nil || n != len(wb) { |
| t.Fatalf("ReadFrom failed: %v, %v; want %v, <nil>", n, err, len(wb)) |
| } |
| } |
