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- // 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.
- //go:build !js
- package net
- import (
- "bytes"
- "math/rand"
- "reflect"
- "runtime"
- "testing"
- )
- var parseIPTests = []struct {
- in string
- out IP
- }{
- {"127.0.1.2", IPv4(127, 0, 1, 2)},
- {"127.0.0.1", IPv4(127, 0, 0, 1)},
- {"::ffff:127.1.2.3", IPv4(127, 1, 2, 3)},
- {"::ffff:7f01:0203", IPv4(127, 1, 2, 3)},
- {"0:0:0:0:0000:ffff:127.1.2.3", IPv4(127, 1, 2, 3)},
- {"0:0:0:0:000000:ffff:127.1.2.3", IPv4(127, 1, 2, 3)},
- {"0:0:0:0::ffff:127.1.2.3", IPv4(127, 1, 2, 3)},
- {"2001:4860:0:2001::68", IP{0x20, 0x01, 0x48, 0x60, 0, 0, 0x20, 0x01, 0, 0, 0, 0, 0, 0, 0x00, 0x68}},
- {"2001:4860:0000:2001:0000:0000:0000:0068", IP{0x20, 0x01, 0x48, 0x60, 0, 0, 0x20, 0x01, 0, 0, 0, 0, 0, 0, 0x00, 0x68}},
- {"-0.0.0.0", nil},
- {"0.-1.0.0", nil},
- {"0.0.-2.0", nil},
- {"0.0.0.-3", nil},
- {"127.0.0.256", nil},
- {"abc", nil},
- {"123:", nil},
- {"fe80::1%lo0", nil},
- {"fe80::1%911", nil},
- {"", nil},
- {"a1:a2:a3:a4::b1:b2:b3:b4", nil}, // Issue 6628
- {"127.001.002.003", nil},
- {"::ffff:127.001.002.003", nil},
- {"123.000.000.000", nil},
- {"1.2..4", nil},
- {"0123.0.0.1", nil},
- }
- func TestParseIP(t *testing.T) {
- for _, tt := range parseIPTests {
- if out := ParseIP(tt.in); !reflect.DeepEqual(out, tt.out) {
- t.Errorf("ParseIP(%q) = %v, want %v", tt.in, out, tt.out)
- }
- if tt.in == "" {
- // Tested in TestMarshalEmptyIP below.
- continue
- }
- var out IP
- if err := out.UnmarshalText([]byte(tt.in)); !reflect.DeepEqual(out, tt.out) || (tt.out == nil) != (err != nil) {
- t.Errorf("IP.UnmarshalText(%q) = %v, %v, want %v", tt.in, out, err, tt.out)
- }
- }
- }
- func TestLookupWithIP(t *testing.T) {
- _, err := LookupIP("")
- if err == nil {
- t.Errorf(`LookupIP("") succeeded, should fail`)
- }
- _, err = LookupHost("")
- if err == nil {
- t.Errorf(`LookupIP("") succeeded, should fail`)
- }
- // Test that LookupHost and LookupIP, which normally
- // expect host names, work with IP addresses.
- for _, tt := range parseIPTests {
- if tt.out != nil {
- addrs, err := LookupHost(tt.in)
- if len(addrs) != 1 || addrs[0] != tt.in || err != nil {
- t.Errorf("LookupHost(%q) = %v, %v, want %v, nil", tt.in, addrs, err, []string{tt.in})
- }
- } else if !testing.Short() {
- // We can't control what the host resolver does; if it can resolve, say,
- // 127.0.0.256 or fe80::1%911 or a host named 'abc', who are we to judge?
- // Warn about these discrepancies but don't fail the test.
- addrs, err := LookupHost(tt.in)
- if err == nil {
- t.Logf("warning: LookupHost(%q) = %v, want error", tt.in, addrs)
- }
- }
- if tt.out != nil {
- ips, err := LookupIP(tt.in)
- if len(ips) != 1 || !reflect.DeepEqual(ips[0], tt.out) || err != nil {
- t.Errorf("LookupIP(%q) = %v, %v, want %v, nil", tt.in, ips, err, []IP{tt.out})
- }
- } else if !testing.Short() {
- ips, err := LookupIP(tt.in)
- // We can't control what the host resolver does. See above.
- if err == nil {
- t.Logf("warning: LookupIP(%q) = %v, want error", tt.in, ips)
- }
- }
- }
- }
- func BenchmarkParseIP(b *testing.B) {
- testHookUninstaller.Do(uninstallTestHooks)
- for i := 0; i < b.N; i++ {
- for _, tt := range parseIPTests {
- ParseIP(tt.in)
- }
- }
- }
- // Issue 6339
- func TestMarshalEmptyIP(t *testing.T) {
- for _, in := range [][]byte{nil, []byte("")} {
- var out = IP{1, 2, 3, 4}
- if err := out.UnmarshalText(in); err != nil || out != nil {
- t.Errorf("UnmarshalText(%v) = %v, %v; want nil, nil", in, out, err)
- }
- }
- var ip IP
- got, err := ip.MarshalText()
- if err != nil {
- t.Fatal(err)
- }
- if !reflect.DeepEqual(got, []byte("")) {
- t.Errorf(`got %#v, want []byte("")`, got)
- }
- }
- var ipStringTests = []*struct {
- in IP // see RFC 791 and RFC 4291
- str string // see RFC 791, RFC 4291 and RFC 5952
- byt []byte
- error
- }{
- // IPv4 address
- {
- IP{192, 0, 2, 1},
- "192.0.2.1",
- []byte("192.0.2.1"),
- nil,
- },
- {
- IP{0, 0, 0, 0},
- "0.0.0.0",
- []byte("0.0.0.0"),
- nil,
- },
- // IPv4-mapped IPv6 address
- {
- IP{0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0xff, 0xff, 192, 0, 2, 1},
- "192.0.2.1",
- []byte("192.0.2.1"),
- nil,
- },
- {
- IP{0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0xff, 0xff, 0, 0, 0, 0},
- "0.0.0.0",
- []byte("0.0.0.0"),
- nil,
- },
- // IPv6 address
- {
- IP{0x20, 0x1, 0xd, 0xb8, 0, 0, 0, 0, 0, 0, 0x1, 0x23, 0, 0x12, 0, 0x1},
- "2001:db8::123:12:1",
- []byte("2001:db8::123:12:1"),
- nil,
- },
- {
- IP{0x20, 0x1, 0xd, 0xb8, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0x1},
- "2001:db8::1",
- []byte("2001:db8::1"),
- nil,
- },
- {
- IP{0x20, 0x1, 0xd, 0xb8, 0, 0, 0, 0x1, 0, 0, 0, 0x1, 0, 0, 0, 0x1},
- "2001:db8:0:1:0:1:0:1",
- []byte("2001:db8:0:1:0:1:0:1"),
- nil,
- },
- {
- IP{0x20, 0x1, 0xd, 0xb8, 0, 0x1, 0, 0, 0, 0x1, 0, 0, 0, 0x1, 0, 0},
- "2001:db8:1:0:1:0:1:0",
- []byte("2001:db8:1:0:1:0:1:0"),
- nil,
- },
- {
- IP{0x20, 0x1, 0, 0, 0, 0, 0, 0, 0, 0x1, 0, 0, 0, 0, 0, 0x1},
- "2001::1:0:0:1",
- []byte("2001::1:0:0:1"),
- nil,
- },
- {
- IP{0x20, 0x1, 0xd, 0xb8, 0, 0, 0, 0, 0, 0x1, 0, 0, 0, 0, 0, 0},
- "2001:db8:0:0:1::",
- []byte("2001:db8:0:0:1::"),
- nil,
- },
- {
- IP{0x20, 0x1, 0xd, 0xb8, 0, 0, 0, 0, 0, 0x1, 0, 0, 0, 0, 0, 0x1},
- "2001:db8::1:0:0:1",
- []byte("2001:db8::1:0:0:1"),
- nil,
- },
- {
- IP{0x20, 0x1, 0xd, 0xb8, 0, 0, 0, 0, 0, 0xa, 0, 0xb, 0, 0xc, 0, 0xd},
- "2001:db8::a:b:c:d",
- []byte("2001:db8::a:b:c:d"),
- nil,
- },
- {
- IPv6unspecified,
- "::",
- []byte("::"),
- nil,
- },
- // IP wildcard equivalent address in Dial/Listen API
- {
- nil,
- "<nil>",
- nil,
- nil,
- },
- // Opaque byte sequence
- {
- IP{0x01, 0x23, 0x45, 0x67, 0x89, 0xab, 0xcd, 0xef},
- "?0123456789abcdef",
- nil,
- &AddrError{Err: "invalid IP address", Addr: "0123456789abcdef"},
- },
- }
- func TestIPString(t *testing.T) {
- for _, tt := range ipStringTests {
- if out := tt.in.String(); out != tt.str {
- t.Errorf("IP.String(%v) = %q, want %q", tt.in, out, tt.str)
- }
- if out, err := tt.in.MarshalText(); !bytes.Equal(out, tt.byt) || !reflect.DeepEqual(err, tt.error) {
- t.Errorf("IP.MarshalText(%v) = %v, %v, want %v, %v", tt.in, out, err, tt.byt, tt.error)
- }
- }
- }
- var sink string
- func BenchmarkIPString(b *testing.B) {
- testHookUninstaller.Do(uninstallTestHooks)
- b.Run("IPv4", func(b *testing.B) {
- benchmarkIPString(b, IPv4len)
- })
- b.Run("IPv6", func(b *testing.B) {
- benchmarkIPString(b, IPv6len)
- })
- }
- func benchmarkIPString(b *testing.B, size int) {
- b.ReportAllocs()
- b.ResetTimer()
- for i := 0; i < b.N; i++ {
- for _, tt := range ipStringTests {
- if tt.in != nil && len(tt.in) == size {
- sink = tt.in.String()
- }
- }
- }
- }
- var ipMaskTests = []struct {
- in IP
- mask IPMask
- out IP
- }{
- {IPv4(192, 168, 1, 127), IPv4Mask(255, 255, 255, 128), IPv4(192, 168, 1, 0)},
- {IPv4(192, 168, 1, 127), IPMask(ParseIP("255.255.255.192")), IPv4(192, 168, 1, 64)},
- {IPv4(192, 168, 1, 127), IPMask(ParseIP("ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffe0")), IPv4(192, 168, 1, 96)},
- {IPv4(192, 168, 1, 127), IPv4Mask(255, 0, 255, 0), IPv4(192, 0, 1, 0)},
- {ParseIP("2001:db8::1"), IPMask(ParseIP("ffff:ff80::")), ParseIP("2001:d80::")},
- {ParseIP("2001:db8::1"), IPMask(ParseIP("f0f0:0f0f::")), ParseIP("2000:d08::")},
- }
- func TestIPMask(t *testing.T) {
- for _, tt := range ipMaskTests {
- if out := tt.in.Mask(tt.mask); out == nil || !tt.out.Equal(out) {
- t.Errorf("IP(%v).Mask(%v) = %v, want %v", tt.in, tt.mask, out, tt.out)
- }
- }
- }
- var ipMaskStringTests = []struct {
- in IPMask
- out string
- }{
- {IPv4Mask(255, 255, 255, 240), "fffffff0"},
- {IPv4Mask(255, 0, 128, 0), "ff008000"},
- {IPMask(ParseIP("ffff:ff80::")), "ffffff80000000000000000000000000"},
- {IPMask(ParseIP("ef00:ff80::cafe:0")), "ef00ff800000000000000000cafe0000"},
- {nil, "<nil>"},
- }
- func TestIPMaskString(t *testing.T) {
- for _, tt := range ipMaskStringTests {
- if out := tt.in.String(); out != tt.out {
- t.Errorf("IPMask.String(%v) = %q, want %q", tt.in, out, tt.out)
- }
- }
- }
- func BenchmarkIPMaskString(b *testing.B) {
- testHookUninstaller.Do(uninstallTestHooks)
- for i := 0; i < b.N; i++ {
- for _, tt := range ipMaskStringTests {
- sink = tt.in.String()
- }
- }
- }
- var parseCIDRTests = []struct {
- in string
- ip IP
- net *IPNet
- err error
- }{
- {"135.104.0.0/32", IPv4(135, 104, 0, 0), &IPNet{IP: IPv4(135, 104, 0, 0), Mask: IPv4Mask(255, 255, 255, 255)}, nil},
- {"0.0.0.0/24", IPv4(0, 0, 0, 0), &IPNet{IP: IPv4(0, 0, 0, 0), Mask: IPv4Mask(255, 255, 255, 0)}, nil},
- {"135.104.0.0/24", IPv4(135, 104, 0, 0), &IPNet{IP: IPv4(135, 104, 0, 0), Mask: IPv4Mask(255, 255, 255, 0)}, nil},
- {"135.104.0.1/32", IPv4(135, 104, 0, 1), &IPNet{IP: IPv4(135, 104, 0, 1), Mask: IPv4Mask(255, 255, 255, 255)}, nil},
- {"135.104.0.1/24", IPv4(135, 104, 0, 1), &IPNet{IP: IPv4(135, 104, 0, 0), Mask: IPv4Mask(255, 255, 255, 0)}, nil},
- {"::1/128", ParseIP("::1"), &IPNet{IP: ParseIP("::1"), Mask: IPMask(ParseIP("ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff"))}, nil},
- {"abcd:2345::/127", ParseIP("abcd:2345::"), &IPNet{IP: ParseIP("abcd:2345::"), Mask: IPMask(ParseIP("ffff:ffff:ffff:ffff:ffff:ffff:ffff:fffe"))}, nil},
- {"abcd:2345::/65", ParseIP("abcd:2345::"), &IPNet{IP: ParseIP("abcd:2345::"), Mask: IPMask(ParseIP("ffff:ffff:ffff:ffff:8000::"))}, nil},
- {"abcd:2345::/64", ParseIP("abcd:2345::"), &IPNet{IP: ParseIP("abcd:2345::"), Mask: IPMask(ParseIP("ffff:ffff:ffff:ffff::"))}, nil},
- {"abcd:2345::/63", ParseIP("abcd:2345::"), &IPNet{IP: ParseIP("abcd:2345::"), Mask: IPMask(ParseIP("ffff:ffff:ffff:fffe::"))}, nil},
- {"abcd:2345::/33", ParseIP("abcd:2345::"), &IPNet{IP: ParseIP("abcd:2345::"), Mask: IPMask(ParseIP("ffff:ffff:8000::"))}, nil},
- {"abcd:2345::/32", ParseIP("abcd:2345::"), &IPNet{IP: ParseIP("abcd:2345::"), Mask: IPMask(ParseIP("ffff:ffff::"))}, nil},
- {"abcd:2344::/31", ParseIP("abcd:2344::"), &IPNet{IP: ParseIP("abcd:2344::"), Mask: IPMask(ParseIP("ffff:fffe::"))}, nil},
- {"abcd:2300::/24", ParseIP("abcd:2300::"), &IPNet{IP: ParseIP("abcd:2300::"), Mask: IPMask(ParseIP("ffff:ff00::"))}, nil},
- {"abcd:2345::/24", ParseIP("abcd:2345::"), &IPNet{IP: ParseIP("abcd:2300::"), Mask: IPMask(ParseIP("ffff:ff00::"))}, nil},
- {"2001:DB8::/48", ParseIP("2001:DB8::"), &IPNet{IP: ParseIP("2001:DB8::"), Mask: IPMask(ParseIP("ffff:ffff:ffff::"))}, nil},
- {"2001:DB8::1/48", ParseIP("2001:DB8::1"), &IPNet{IP: ParseIP("2001:DB8::"), Mask: IPMask(ParseIP("ffff:ffff:ffff::"))}, nil},
- {"192.168.1.1/255.255.255.0", nil, nil, &ParseError{Type: "CIDR address", Text: "192.168.1.1/255.255.255.0"}},
- {"192.168.1.1/35", nil, nil, &ParseError{Type: "CIDR address", Text: "192.168.1.1/35"}},
- {"2001:db8::1/-1", nil, nil, &ParseError{Type: "CIDR address", Text: "2001:db8::1/-1"}},
- {"2001:db8::1/-0", nil, nil, &ParseError{Type: "CIDR address", Text: "2001:db8::1/-0"}},
- {"-0.0.0.0/32", nil, nil, &ParseError{Type: "CIDR address", Text: "-0.0.0.0/32"}},
- {"0.-1.0.0/32", nil, nil, &ParseError{Type: "CIDR address", Text: "0.-1.0.0/32"}},
- {"0.0.-2.0/32", nil, nil, &ParseError{Type: "CIDR address", Text: "0.0.-2.0/32"}},
- {"0.0.0.-3/32", nil, nil, &ParseError{Type: "CIDR address", Text: "0.0.0.-3/32"}},
- {"0.0.0.0/-0", nil, nil, &ParseError{Type: "CIDR address", Text: "0.0.0.0/-0"}},
- {"127.000.000.001/32", nil, nil, &ParseError{Type: "CIDR address", Text: "127.000.000.001/32"}},
- {"", nil, nil, &ParseError{Type: "CIDR address", Text: ""}},
- }
- func TestParseCIDR(t *testing.T) {
- for _, tt := range parseCIDRTests {
- ip, net, err := ParseCIDR(tt.in)
- if !reflect.DeepEqual(err, tt.err) {
- t.Errorf("ParseCIDR(%q) = %v, %v; want %v, %v", tt.in, ip, net, tt.ip, tt.net)
- }
- if err == nil && (!tt.ip.Equal(ip) || !tt.net.IP.Equal(net.IP) || !reflect.DeepEqual(net.Mask, tt.net.Mask)) {
- t.Errorf("ParseCIDR(%q) = %v, {%v, %v}; want %v, {%v, %v}", tt.in, ip, net.IP, net.Mask, tt.ip, tt.net.IP, tt.net.Mask)
- }
- }
- }
- var ipNetContainsTests = []struct {
- ip IP
- net *IPNet
- ok bool
- }{
- {IPv4(172, 16, 1, 1), &IPNet{IP: IPv4(172, 16, 0, 0), Mask: CIDRMask(12, 32)}, true},
- {IPv4(172, 24, 0, 1), &IPNet{IP: IPv4(172, 16, 0, 0), Mask: CIDRMask(13, 32)}, false},
- {IPv4(192, 168, 0, 3), &IPNet{IP: IPv4(192, 168, 0, 0), Mask: IPv4Mask(0, 0, 255, 252)}, true},
- {IPv4(192, 168, 0, 4), &IPNet{IP: IPv4(192, 168, 0, 0), Mask: IPv4Mask(0, 255, 0, 252)}, false},
- {ParseIP("2001:db8:1:2::1"), &IPNet{IP: ParseIP("2001:db8:1::"), Mask: CIDRMask(47, 128)}, true},
- {ParseIP("2001:db8:1:2::1"), &IPNet{IP: ParseIP("2001:db8:2::"), Mask: CIDRMask(47, 128)}, false},
- {ParseIP("2001:db8:1:2::1"), &IPNet{IP: ParseIP("2001:db8:1::"), Mask: IPMask(ParseIP("ffff:0:ffff::"))}, true},
- {ParseIP("2001:db8:1:2::1"), &IPNet{IP: ParseIP("2001:db8:1::"), Mask: IPMask(ParseIP("0:0:0:ffff::"))}, false},
- }
- func TestIPNetContains(t *testing.T) {
- for _, tt := range ipNetContainsTests {
- if ok := tt.net.Contains(tt.ip); ok != tt.ok {
- t.Errorf("IPNet(%v).Contains(%v) = %v, want %v", tt.net, tt.ip, ok, tt.ok)
- }
- }
- }
- var ipNetStringTests = []struct {
- in *IPNet
- out string
- }{
- {&IPNet{IP: IPv4(192, 168, 1, 0), Mask: CIDRMask(26, 32)}, "192.168.1.0/26"},
- {&IPNet{IP: IPv4(192, 168, 1, 0), Mask: IPv4Mask(255, 0, 255, 0)}, "192.168.1.0/ff00ff00"},
- {&IPNet{IP: ParseIP("2001:db8::"), Mask: CIDRMask(55, 128)}, "2001:db8::/55"},
- {&IPNet{IP: ParseIP("2001:db8::"), Mask: IPMask(ParseIP("8000:f123:0:cafe::"))}, "2001:db8::/8000f1230000cafe0000000000000000"},
- {nil, "<nil>"},
- }
- func TestIPNetString(t *testing.T) {
- for _, tt := range ipNetStringTests {
- if out := tt.in.String(); out != tt.out {
- t.Errorf("IPNet.String(%v) = %q, want %q", tt.in, out, tt.out)
- }
- }
- }
- var cidrMaskTests = []struct {
- ones int
- bits int
- out IPMask
- }{
- {0, 32, IPv4Mask(0, 0, 0, 0)},
- {12, 32, IPv4Mask(255, 240, 0, 0)},
- {24, 32, IPv4Mask(255, 255, 255, 0)},
- {32, 32, IPv4Mask(255, 255, 255, 255)},
- {0, 128, IPMask{0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}},
- {4, 128, IPMask{0xf0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}},
- {48, 128, IPMask{0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}},
- {128, 128, IPMask{0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff}},
- {33, 32, nil},
- {32, 33, nil},
- {-1, 128, nil},
- {128, -1, nil},
- }
- func TestCIDRMask(t *testing.T) {
- for _, tt := range cidrMaskTests {
- if out := CIDRMask(tt.ones, tt.bits); !reflect.DeepEqual(out, tt.out) {
- t.Errorf("CIDRMask(%v, %v) = %v, want %v", tt.ones, tt.bits, out, tt.out)
- }
- }
- }
- var (
- v4addr = IP{192, 168, 0, 1}
- v4mappedv6addr = IP{0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0xff, 0xff, 192, 168, 0, 1}
- v6addr = IP{0x20, 0x1, 0xd, 0xb8, 0, 0, 0, 0, 0, 0, 0x1, 0x23, 0, 0x12, 0, 0x1}
- v4mask = IPMask{255, 255, 255, 0}
- v4mappedv6mask = IPMask{0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 255, 255, 255, 0}
- v6mask = IPMask{0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0, 0, 0, 0, 0, 0, 0, 0}
- badaddr = IP{192, 168, 0}
- badmask = IPMask{255, 255, 0}
- v4maskzero = IPMask{0, 0, 0, 0}
- )
- var networkNumberAndMaskTests = []struct {
- in IPNet
- out IPNet
- }{
- {IPNet{IP: v4addr, Mask: v4mask}, IPNet{IP: v4addr, Mask: v4mask}},
- {IPNet{IP: v4addr, Mask: v4mappedv6mask}, IPNet{IP: v4addr, Mask: v4mask}},
- {IPNet{IP: v4mappedv6addr, Mask: v4mappedv6mask}, IPNet{IP: v4addr, Mask: v4mask}},
- {IPNet{IP: v4mappedv6addr, Mask: v6mask}, IPNet{IP: v4addr, Mask: v4maskzero}},
- {IPNet{IP: v4addr, Mask: v6mask}, IPNet{IP: v4addr, Mask: v4maskzero}},
- {IPNet{IP: v6addr, Mask: v6mask}, IPNet{IP: v6addr, Mask: v6mask}},
- {IPNet{IP: v6addr, Mask: v4mappedv6mask}, IPNet{IP: v6addr, Mask: v4mappedv6mask}},
- {in: IPNet{IP: v6addr, Mask: v4mask}},
- {in: IPNet{IP: v4addr, Mask: badmask}},
- {in: IPNet{IP: v4mappedv6addr, Mask: badmask}},
- {in: IPNet{IP: v6addr, Mask: badmask}},
- {in: IPNet{IP: badaddr, Mask: v4mask}},
- {in: IPNet{IP: badaddr, Mask: v4mappedv6mask}},
- {in: IPNet{IP: badaddr, Mask: v6mask}},
- {in: IPNet{IP: badaddr, Mask: badmask}},
- }
- func TestNetworkNumberAndMask(t *testing.T) {
- for _, tt := range networkNumberAndMaskTests {
- ip, m := networkNumberAndMask(&tt.in)
- out := &IPNet{IP: ip, Mask: m}
- if !reflect.DeepEqual(&tt.out, out) {
- t.Errorf("networkNumberAndMask(%v) = %v, want %v", tt.in, out, &tt.out)
- }
- }
- }
- func TestSplitHostPort(t *testing.T) {
- for _, tt := range []struct {
- hostPort string
- host string
- port string
- }{
- // Host name
- {"localhost:http", "localhost", "http"},
- {"localhost:80", "localhost", "80"},
- // Go-specific host name with zone identifier
- {"localhost%lo0:http", "localhost%lo0", "http"},
- {"localhost%lo0:80", "localhost%lo0", "80"},
- {"[localhost%lo0]:http", "localhost%lo0", "http"}, // Go 1 behavior
- {"[localhost%lo0]:80", "localhost%lo0", "80"}, // Go 1 behavior
- // IP literal
- {"127.0.0.1:http", "127.0.0.1", "http"},
- {"127.0.0.1:80", "127.0.0.1", "80"},
- {"[::1]:http", "::1", "http"},
- {"[::1]:80", "::1", "80"},
- // IP literal with zone identifier
- {"[::1%lo0]:http", "::1%lo0", "http"},
- {"[::1%lo0]:80", "::1%lo0", "80"},
- // Go-specific wildcard for host name
- {":http", "", "http"}, // Go 1 behavior
- {":80", "", "80"}, // Go 1 behavior
- // Go-specific wildcard for service name or transport port number
- {"golang.org:", "golang.org", ""}, // Go 1 behavior
- {"127.0.0.1:", "127.0.0.1", ""}, // Go 1 behavior
- {"[::1]:", "::1", ""}, // Go 1 behavior
- // Opaque service name
- {"golang.org:https%foo", "golang.org", "https%foo"}, // Go 1 behavior
- } {
- if host, port, err := SplitHostPort(tt.hostPort); host != tt.host || port != tt.port || err != nil {
- t.Errorf("SplitHostPort(%q) = %q, %q, %v; want %q, %q, nil", tt.hostPort, host, port, err, tt.host, tt.port)
- }
- }
- for _, tt := range []struct {
- hostPort string
- err string
- }{
- {"golang.org", "missing port in address"},
- {"127.0.0.1", "missing port in address"},
- {"[::1]", "missing port in address"},
- {"[fe80::1%lo0]", "missing port in address"},
- {"[localhost%lo0]", "missing port in address"},
- {"localhost%lo0", "missing port in address"},
- {"::1", "too many colons in address"},
- {"fe80::1%lo0", "too many colons in address"},
- {"fe80::1%lo0:80", "too many colons in address"},
- // Test cases that didn't fail in Go 1
- {"[foo:bar]", "missing port in address"},
- {"[foo:bar]baz", "missing port in address"},
- {"[foo]bar:baz", "missing port in address"},
- {"[foo]:[bar]:baz", "too many colons in address"},
- {"[foo]:[bar]baz", "unexpected '[' in address"},
- {"foo[bar]:baz", "unexpected '[' in address"},
- {"foo]bar:baz", "unexpected ']' in address"},
- } {
- if host, port, err := SplitHostPort(tt.hostPort); err == nil {
- t.Errorf("SplitHostPort(%q) should have failed", tt.hostPort)
- } else {
- e := err.(*AddrError)
- if e.Err != tt.err {
- t.Errorf("SplitHostPort(%q) = _, _, %q; want %q", tt.hostPort, e.Err, tt.err)
- }
- if host != "" || port != "" {
- t.Errorf("SplitHostPort(%q) = %q, %q, err; want %q, %q, err on failure", tt.hostPort, host, port, "", "")
- }
- }
- }
- }
- func TestJoinHostPort(t *testing.T) {
- for _, tt := range []struct {
- host string
- port string
- hostPort string
- }{
- // Host name
- {"localhost", "http", "localhost:http"},
- {"localhost", "80", "localhost:80"},
- // Go-specific host name with zone identifier
- {"localhost%lo0", "http", "localhost%lo0:http"},
- {"localhost%lo0", "80", "localhost%lo0:80"},
- // IP literal
- {"127.0.0.1", "http", "127.0.0.1:http"},
- {"127.0.0.1", "80", "127.0.0.1:80"},
- {"::1", "http", "[::1]:http"},
- {"::1", "80", "[::1]:80"},
- // IP literal with zone identifier
- {"::1%lo0", "http", "[::1%lo0]:http"},
- {"::1%lo0", "80", "[::1%lo0]:80"},
- // Go-specific wildcard for host name
- {"", "http", ":http"}, // Go 1 behavior
- {"", "80", ":80"}, // Go 1 behavior
- // Go-specific wildcard for service name or transport port number
- {"golang.org", "", "golang.org:"}, // Go 1 behavior
- {"127.0.0.1", "", "127.0.0.1:"}, // Go 1 behavior
- {"::1", "", "[::1]:"}, // Go 1 behavior
- // Opaque service name
- {"golang.org", "https%foo", "golang.org:https%foo"}, // Go 1 behavior
- } {
- if hostPort := JoinHostPort(tt.host, tt.port); hostPort != tt.hostPort {
- t.Errorf("JoinHostPort(%q, %q) = %q; want %q", tt.host, tt.port, hostPort, tt.hostPort)
- }
- }
- }
- var ipAddrFamilyTests = []struct {
- in IP
- af4 bool
- af6 bool
- }{
- {IPv4bcast, true, false},
- {IPv4allsys, true, false},
- {IPv4allrouter, true, false},
- {IPv4zero, true, false},
- {IPv4(224, 0, 0, 1), true, false},
- {IPv4(127, 0, 0, 1), true, false},
- {IPv4(240, 0, 0, 1), true, false},
- {IPv6unspecified, false, true},
- {IPv6loopback, false, true},
- {IPv6interfacelocalallnodes, false, true},
- {IPv6linklocalallnodes, false, true},
- {IPv6linklocalallrouters, false, true},
- {ParseIP("ff05::a:b:c:d"), false, true},
- {ParseIP("fe80::1:2:3:4"), false, true},
- {ParseIP("2001:db8::123:12:1"), false, true},
- }
- func TestIPAddrFamily(t *testing.T) {
- for _, tt := range ipAddrFamilyTests {
- if af := tt.in.To4() != nil; af != tt.af4 {
- t.Errorf("verifying IPv4 address family for %q = %v, want %v", tt.in, af, tt.af4)
- }
- if af := len(tt.in) == IPv6len && tt.in.To4() == nil; af != tt.af6 {
- t.Errorf("verifying IPv6 address family for %q = %v, want %v", tt.in, af, tt.af6)
- }
- }
- }
- var ipAddrScopeTests = []struct {
- scope func(IP) bool
- in IP
- ok bool
- }{
- {IP.IsUnspecified, IPv4zero, true},
- {IP.IsUnspecified, IPv4(127, 0, 0, 1), false},
- {IP.IsUnspecified, IPv6unspecified, true},
- {IP.IsUnspecified, IPv6interfacelocalallnodes, false},
- {IP.IsUnspecified, nil, false},
- {IP.IsLoopback, IPv4(127, 0, 0, 1), true},
- {IP.IsLoopback, IPv4(127, 255, 255, 254), true},
- {IP.IsLoopback, IPv4(128, 1, 2, 3), false},
- {IP.IsLoopback, IPv6loopback, true},
- {IP.IsLoopback, IPv6linklocalallrouters, false},
- {IP.IsLoopback, nil, false},
- {IP.IsMulticast, IPv4(224, 0, 0, 0), true},
- {IP.IsMulticast, IPv4(239, 0, 0, 0), true},
- {IP.IsMulticast, IPv4(240, 0, 0, 0), false},
- {IP.IsMulticast, IPv6linklocalallnodes, true},
- {IP.IsMulticast, IP{0xff, 0x05, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}, true},
- {IP.IsMulticast, IP{0xfe, 0x80, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}, false},
- {IP.IsMulticast, nil, false},
- {IP.IsInterfaceLocalMulticast, IPv4(224, 0, 0, 0), false},
- {IP.IsInterfaceLocalMulticast, IPv4(0xff, 0x01, 0, 0), false},
- {IP.IsInterfaceLocalMulticast, IPv6interfacelocalallnodes, true},
- {IP.IsInterfaceLocalMulticast, nil, false},
- {IP.IsLinkLocalMulticast, IPv4(224, 0, 0, 0), true},
- {IP.IsLinkLocalMulticast, IPv4(239, 0, 0, 0), false},
- {IP.IsLinkLocalMulticast, IPv4(0xff, 0x02, 0, 0), false},
- {IP.IsLinkLocalMulticast, IPv6linklocalallrouters, true},
- {IP.IsLinkLocalMulticast, IP{0xff, 0x05, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}, false},
- {IP.IsLinkLocalMulticast, nil, false},
- {IP.IsLinkLocalUnicast, IPv4(169, 254, 0, 0), true},
- {IP.IsLinkLocalUnicast, IPv4(169, 255, 0, 0), false},
- {IP.IsLinkLocalUnicast, IPv4(0xfe, 0x80, 0, 0), false},
- {IP.IsLinkLocalUnicast, IP{0xfe, 0x80, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}, true},
- {IP.IsLinkLocalUnicast, IP{0xfe, 0xc0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}, false},
- {IP.IsLinkLocalUnicast, nil, false},
- {IP.IsGlobalUnicast, IPv4(240, 0, 0, 0), true},
- {IP.IsGlobalUnicast, IPv4(232, 0, 0, 0), false},
- {IP.IsGlobalUnicast, IPv4(169, 254, 0, 0), false},
- {IP.IsGlobalUnicast, IPv4bcast, false},
- {IP.IsGlobalUnicast, IP{0x20, 0x1, 0xd, 0xb8, 0, 0, 0, 0, 0, 0, 0x1, 0x23, 0, 0x12, 0, 0x1}, true},
- {IP.IsGlobalUnicast, IP{0xfe, 0x80, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}, false},
- {IP.IsGlobalUnicast, IP{0xff, 0x05, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}, false},
- {IP.IsGlobalUnicast, nil, false},
- {IP.IsPrivate, nil, false},
- {IP.IsPrivate, IPv4(1, 1, 1, 1), false},
- {IP.IsPrivate, IPv4(9, 255, 255, 255), false},
- {IP.IsPrivate, IPv4(10, 0, 0, 0), true},
- {IP.IsPrivate, IPv4(10, 255, 255, 255), true},
- {IP.IsPrivate, IPv4(11, 0, 0, 0), false},
- {IP.IsPrivate, IPv4(172, 15, 255, 255), false},
- {IP.IsPrivate, IPv4(172, 16, 0, 0), true},
- {IP.IsPrivate, IPv4(172, 16, 255, 255), true},
- {IP.IsPrivate, IPv4(172, 23, 18, 255), true},
- {IP.IsPrivate, IPv4(172, 31, 255, 255), true},
- {IP.IsPrivate, IPv4(172, 31, 0, 0), true},
- {IP.IsPrivate, IPv4(172, 32, 0, 0), false},
- {IP.IsPrivate, IPv4(192, 167, 255, 255), false},
- {IP.IsPrivate, IPv4(192, 168, 0, 0), true},
- {IP.IsPrivate, IPv4(192, 168, 255, 255), true},
- {IP.IsPrivate, IPv4(192, 169, 0, 0), false},
- {IP.IsPrivate, IP{0xfb, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff}, false},
- {IP.IsPrivate, IP{0xfc, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}, true},
- {IP.IsPrivate, IP{0xfc, 0xff, 0x12, 0, 0, 0, 0, 0x44, 0, 0, 0, 0, 0, 0, 0, 0}, true},
- {IP.IsPrivate, IP{0xfd, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff}, true},
- {IP.IsPrivate, IP{0xfe, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}, false},
- }
- func name(f any) string {
- return runtime.FuncForPC(reflect.ValueOf(f).Pointer()).Name()
- }
- func TestIPAddrScope(t *testing.T) {
- for _, tt := range ipAddrScopeTests {
- if ok := tt.scope(tt.in); ok != tt.ok {
- t.Errorf("%s(%q) = %v, want %v", name(tt.scope), tt.in, ok, tt.ok)
- }
- ip := tt.in.To4()
- if ip == nil {
- continue
- }
- if ok := tt.scope(ip); ok != tt.ok {
- t.Errorf("%s(%q) = %v, want %v", name(tt.scope), ip, ok, tt.ok)
- }
- }
- }
- func BenchmarkIPEqual(b *testing.B) {
- b.Run("IPv4", func(b *testing.B) {
- benchmarkIPEqual(b, IPv4len)
- })
- b.Run("IPv6", func(b *testing.B) {
- benchmarkIPEqual(b, IPv6len)
- })
- }
- func benchmarkIPEqual(b *testing.B, size int) {
- ips := make([]IP, 1000)
- for i := range ips {
- ips[i] = make(IP, size)
- rand.Read(ips[i])
- }
- // Half of the N are equal.
- for i := 0; i < b.N/2; i++ {
- x := ips[i%len(ips)]
- y := ips[i%len(ips)]
- x.Equal(y)
- }
- // The other half are not equal.
- for i := 0; i < b.N/2; i++ {
- x := ips[i%len(ips)]
- y := ips[(i+1)%len(ips)]
- x.Equal(y)
- }
- }
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