File size: 4,024 Bytes
13c2bf6 | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 | // Copyright 2024 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 windows_test
import (
"internal/syscall/windows"
"os"
"path/filepath"
"syscall"
"testing"
"unsafe"
)
func TestOpen(t *testing.T) {
t.Parallel()
dir := t.TempDir()
file := filepath.Join(dir, "a")
f, err := os.Create(file)
if err != nil {
t.Fatal(err)
}
f.Close()
tests := []struct {
path string
flag int
err error
}{
{dir, syscall.O_RDONLY, nil},
{dir, syscall.O_CREAT, nil},
{dir, syscall.O_RDONLY | syscall.O_CREAT, nil},
{file, syscall.O_APPEND | syscall.O_WRONLY | os.O_CREATE, nil},
{file, syscall.O_APPEND | syscall.O_WRONLY | os.O_CREATE | os.O_TRUNC, nil},
{dir, syscall.O_RDONLY | syscall.O_TRUNC, syscall.ERROR_ACCESS_DENIED},
{dir, syscall.O_WRONLY | syscall.O_RDWR, nil}, // TODO: syscall.Open returns EISDIR here, we should reconcile this
{dir, syscall.O_WRONLY, syscall.EISDIR},
{dir, syscall.O_RDWR, syscall.EISDIR},
}
for i, tt := range tests {
dir := filepath.Dir(tt.path)
dirfd, err := syscall.Open(dir, syscall.O_RDONLY, 0)
if err != nil {
t.Error(err)
continue
}
base := filepath.Base(tt.path)
h, err := windows.Openat(dirfd, base, uint64(tt.flag), 0o660)
syscall.CloseHandle(dirfd)
if err == nil {
syscall.CloseHandle(h)
}
if err != tt.err {
t.Errorf("%d: Open got %q, want %q", i, err, tt.err)
}
}
}
func TestDeleteAt(t *testing.T) {
testCases := []struct {
name string
modifier func(t *testing.T, path string)
}{
{"DeleteAt removes normal file", func(t *testing.T, name string) {}},
{"DeleteAt removes file with no read permission", makeFileNotReadable},
{"DeleteAt removes readonly file", makeFileReadonly},
}
for _, tc := range testCases {
t.Run(tc.name, func(t *testing.T) {
t.Parallel()
dir := t.TempDir()
file := filepath.Join(dir, "a")
f, err := os.Create(file)
if err != nil {
t.Fatal(err)
}
f.Close()
// Remove all permissions from the file.
// Do not use os.Chmod it sets only readonly attribute on Windows.
tc.modifier(t, file)
// delete file using DeleteAt
dirfd, err := syscall.Open(dir, syscall.O_RDONLY, 0)
if err != nil {
t.Fatal(err)
}
base := filepath.Base(file)
err = windows.Deleteat(dirfd, base, 0)
syscall.CloseHandle(dirfd)
if err != nil {
t.Fatalf("Deleteat failed: %v", err)
}
// Verify the file has been deleted.
if _, err := os.Stat(file); !os.IsNotExist(err) {
t.Fatalf("file still exists after DeleteAt")
}
})
}
}
func makeFileReadonly(t *testing.T, name string) {
if err := os.Chmod(name, 0); err != nil {
t.Fatal(err)
}
}
func makeFileNotReadable(t *testing.T, name string) {
creatorOwnerSID, err := syscall.StringToSid("S-1-3-0")
if err != nil {
t.Fatal(err)
}
creatorGroupSID, err := syscall.StringToSid("S-1-3-1")
if err != nil {
t.Fatal(err)
}
everyoneSID, err := syscall.StringToSid("S-1-1-0")
if err != nil {
t.Fatal(err)
}
entryForSid := func(sid *syscall.SID) windows.EXPLICIT_ACCESS {
return windows.EXPLICIT_ACCESS{
AccessPermissions: 0,
AccessMode: windows.GRANT_ACCESS,
Inheritance: windows.SUB_CONTAINERS_AND_OBJECTS_INHERIT,
Trustee: windows.TRUSTEE{
TrusteeForm: windows.TRUSTEE_IS_SID,
Name: (uintptr)(unsafe.Pointer(sid)),
},
}
}
entries := []windows.EXPLICIT_ACCESS{
entryForSid(creatorOwnerSID),
entryForSid(creatorGroupSID),
entryForSid(everyoneSID),
}
var oldAcl, newAcl *windows.ACL
if err := windows.SetEntriesInAcl(
uint32(len(entries)),
&entries[0],
oldAcl,
&newAcl,
); err != nil {
t.Fatal(err)
}
defer syscall.LocalFree((syscall.Handle)(unsafe.Pointer(newAcl)))
if err := windows.SetNamedSecurityInfo(
name,
windows.SE_FILE_OBJECT,
windows.DACL_SECURITY_INFORMATION|windows.PROTECTED_DACL_SECURITY_INFORMATION,
nil,
nil,
newAcl,
nil,
); err != nil {
t.Fatal(err)
}
}
|