1 // Copyright 2015 The Go Authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style 3 // license that can be found in the LICENSE file. 4 5 package net 6 7 import ( 8 "bytes" 9 "internal/syscall/windows" 10 "sort" 11 "testing" 12 ) 13 14 func TestWindowsInterfaces(t *testing.T) { 15 aas, err := adapterAddresses() 16 if err != nil { 17 t.Fatal(err) 18 } 19 ift, err := Interfaces() 20 if err != nil { 21 t.Fatal(err) 22 } 23 for i, ifi := range ift { 24 aa := aas[i] 25 if len(ifi.HardwareAddr) != int(aa.PhysicalAddressLength) { 26 t.Errorf("got %d; want %d", len(ifi.HardwareAddr), aa.PhysicalAddressLength) 27 } 28 if ifi.MTU > 0x7fffffff { 29 t.Errorf("%s: got %d; want less than or equal to 1<<31 - 1", ifi.Name, ifi.MTU) 30 } 31 if ifi.Flags&FlagUp != 0 && aa.OperStatus != windows.IfOperStatusUp { 32 t.Errorf("%s: got %v; should not include FlagUp", ifi.Name, ifi.Flags) 33 } 34 if ifi.Flags&FlagLoopback != 0 && aa.IfType != windows.IF_TYPE_SOFTWARE_LOOPBACK { 35 t.Errorf("%s: got %v; should not include FlagLoopback", ifi.Name, ifi.Flags) 36 } 37 if _, _, err := addrPrefixTable(aa); err != nil { 38 t.Errorf("%s: %v", ifi.Name, err) 39 } 40 } 41 } 42 43 type byAddrLen []IPNet 44 45 func (ps byAddrLen) Len() int { return len(ps) } 46 47 func (ps byAddrLen) Less(i, j int) bool { 48 if n := bytes.Compare(ps[i].IP, ps[j].IP); n != 0 { 49 return n < 0 50 } 51 if n := bytes.Compare(ps[i].Mask, ps[j].Mask); n != 0 { 52 return n < 0 53 } 54 return false 55 } 56 57 func (ps byAddrLen) Swap(i, j int) { ps[i], ps[j] = ps[j], ps[i] } 58 59 var windowsAddrPrefixLenTests = []struct { 60 pfxs []IPNet 61 ip IP 62 out int 63 }{ 64 { 65 []IPNet{ 66 {IP: IPv4(172, 16, 0, 0), Mask: IPv4Mask(255, 255, 0, 0)}, 67 {IP: IPv4(192, 168, 0, 0), Mask: IPv4Mask(255, 255, 255, 0)}, 68 {IP: IPv4(192, 168, 0, 0), Mask: IPv4Mask(255, 255, 255, 128)}, 69 {IP: IPv4(192, 168, 0, 0), Mask: IPv4Mask(255, 255, 255, 192)}, 70 }, 71 IPv4(192, 168, 0, 1), 72 26, 73 }, 74 { 75 []IPNet{ 76 {IP: ParseIP("2001:db8::"), Mask: IPMask(ParseIP("ffff:ffff:ffff:ffff:ffff:ffff:ffff:fff0"))}, 77 {IP: ParseIP("2001:db8::"), Mask: IPMask(ParseIP("ffff:ffff:ffff:ffff:ffff:ffff:ffff:fff8"))}, 78 {IP: ParseIP("2001:db8::"), Mask: IPMask(ParseIP("ffff:ffff:ffff:ffff:ffff:ffff:ffff:fffc"))}, 79 }, 80 ParseIP("2001:db8::1"), 81 126, 82 }, 83 84 // Fallback cases. It may happen on Windows XP or 2003 server. 85 { 86 []IPNet{ 87 {IP: IPv4(127, 0, 0, 0).To4(), Mask: IPv4Mask(255, 0, 0, 0)}, 88 {IP: IPv4(10, 0, 0, 0).To4(), Mask: IPv4Mask(255, 0, 0, 0)}, 89 {IP: IPv4(172, 16, 0, 0).To4(), Mask: IPv4Mask(255, 255, 0, 0)}, 90 {IP: IPv4(192, 168, 255, 0), Mask: IPv4Mask(255, 255, 255, 0)}, 91 {IP: IPv4zero, Mask: IPv4Mask(0, 0, 0, 0)}, 92 }, 93 IPv4(192, 168, 0, 1), 94 8 * IPv4len, 95 }, 96 { 97 nil, 98 IPv4(192, 168, 0, 1), 99 8 * IPv4len, 100 }, 101 { 102 []IPNet{ 103 {IP: IPv6loopback, Mask: IPMask(ParseIP("ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff"))}, 104 {IP: ParseIP("2001:db8:1::"), Mask: IPMask(ParseIP("ffff:ffff:ffff:ffff:ffff:ffff:ffff:fff0"))}, 105 {IP: ParseIP("2001:db8:2::"), Mask: IPMask(ParseIP("ffff:ffff:ffff:ffff:ffff:ffff:ffff:fff8"))}, 106 {IP: ParseIP("2001:db8:3::"), Mask: IPMask(ParseIP("ffff:ffff:ffff:ffff:ffff:ffff:ffff:fffc"))}, 107 {IP: IPv6unspecified, Mask: IPMask(ParseIP("::"))}, 108 }, 109 ParseIP("2001:db8::1"), 110 8 * IPv6len, 111 }, 112 { 113 nil, 114 ParseIP("2001:db8::1"), 115 8 * IPv6len, 116 }, 117 } 118 119 func TestWindowsAddrPrefixLen(t *testing.T) { 120 for i, tt := range windowsAddrPrefixLenTests { 121 sort.Sort(byAddrLen(tt.pfxs)) 122 l := addrPrefixLen(tt.pfxs, tt.ip) 123 if l != tt.out { 124 t.Errorf("#%d: got %d; want %d", i, l, tt.out) 125 } 126 sort.Sort(sort.Reverse(byAddrLen(tt.pfxs))) 127 l = addrPrefixLen(tt.pfxs, tt.ip) 128 if l != tt.out { 129 t.Errorf("#%d: got %d; want %d", i, l, tt.out) 130 } 131 } 132 } 133
