golang.org/x/net@v0.25.1-0.20240516223405-c87a5b62e243/route/address_test.go (about)

     1  // Copyright 2016 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  //go:build darwin || dragonfly || freebsd || netbsd || openbsd
     6  
     7  package route
     8  
     9  import (
    10  	"reflect"
    11  	"syscall"
    12  	"testing"
    13  )
    14  
    15  type parseAddrsTest struct {
    16  	attrs uint
    17  	fn    func(int, []byte) (int, Addr, error)
    18  	b     []byte
    19  	as    []Addr
    20  }
    21  
    22  var parseAddrsLittleEndianTests = []parseAddrsTest{
    23  	{
    24  		syscall.RTA_DST | syscall.RTA_GATEWAY | syscall.RTA_NETMASK | syscall.RTA_BRD,
    25  		parseKernelInetAddr,
    26  		[]byte{
    27  			0x38, 0x12, 0x0, 0x0, 0xff, 0xff, 0xff, 0x0,
    28  			0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
    29  			0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
    30  			0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
    31  			0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
    32  			0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
    33  			0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
    34  
    35  			0x38, 0x12, 0x2, 0x0, 0x6, 0x3, 0x6, 0x0,
    36  			0x65, 0x6d, 0x31, 0x0, 0xc, 0x29, 0x66, 0x2c,
    37  			0xdc, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
    38  			0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
    39  			0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
    40  			0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
    41  			0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
    42  
    43  			0x10, 0x2, 0x0, 0x0, 0xac, 0x10, 0xdc, 0xb4,
    44  			0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
    45  
    46  			0x10, 0x2, 0x0, 0x0, 0xac, 0x10, 0xdc, 0xff,
    47  			0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
    48  		},
    49  		[]Addr{
    50  			&LinkAddr{Index: 0},
    51  			&LinkAddr{Index: 2, Name: "em1", Addr: []byte{0x00, 0x0c, 0x29, 0x66, 0x2c, 0xdc}},
    52  			&Inet4Addr{IP: [4]byte{172, 16, 220, 180}},
    53  			nil,
    54  			nil,
    55  			nil,
    56  			nil,
    57  			&Inet4Addr{IP: [4]byte{172, 16, 220, 255}},
    58  		},
    59  	},
    60  	{
    61  		syscall.RTA_NETMASK | syscall.RTA_IFP | syscall.RTA_IFA,
    62  		parseKernelInetAddr,
    63  		[]byte{
    64  			0x7, 0x0, 0x0, 0x0, 0xff, 0xff, 0xff, 0x0,
    65  
    66  			0x18, 0x12, 0xa, 0x0, 0x87, 0x8, 0x0, 0x0,
    67  			0x76, 0x6c, 0x61, 0x6e, 0x35, 0x36, 0x38, 0x32,
    68  			0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
    69  
    70  			0x10, 0x2, 0x0, 0x0, 0xa9, 0xfe, 0x0, 0x1,
    71  			0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
    72  		},
    73  		[]Addr{
    74  			nil,
    75  			nil,
    76  			&Inet4Addr{IP: [4]byte{255, 255, 255, 0}},
    77  			nil,
    78  			&LinkAddr{Index: 10, Name: "vlan5682"},
    79  			&Inet4Addr{IP: [4]byte{169, 254, 0, 1}},
    80  			nil,
    81  			nil,
    82  		},
    83  	},
    84  }
    85  
    86  func TestParseAddrs(t *testing.T) {
    87  	tests := parseAddrsLittleEndianTests
    88  	if nativeEndian != littleEndian {
    89  		t.Skip("no test for non-little endian machine yet")
    90  	}
    91  
    92  	for i, tt := range tests {
    93  		as, err := parseAddrs(tt.attrs, tt.fn, tt.b)
    94  		if err != nil {
    95  			t.Error(i, err)
    96  			continue
    97  		}
    98  		as = as[:8] // the list varies between operating systems
    99  		if !reflect.DeepEqual(as, tt.as) {
   100  			t.Errorf("#%d: got %+v; want %+v", i, as, tt.as)
   101  			continue
   102  		}
   103  	}
   104  }