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
169
170
171
172
173
174
175
176
|
// Copyright 2018 The gVisor Authors.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package fs
import (
"gvisor.dev/gvisor/pkg/context"
"gvisor.dev/gvisor/pkg/errors/linuxerr"
)
// MockInodeOperations implements InodeOperations for testing Inodes.
type MockInodeOperations struct {
InodeOperations
UAttr UnstableAttr
createCalled bool
createDirectoryCalled bool
createLinkCalled bool
renameCalled bool
walkCalled bool
}
// NewMockInode returns a mock *Inode using MockInodeOperations.
func NewMockInode(ctx context.Context, msrc *MountSource, sattr StableAttr) *Inode {
return NewInode(ctx, NewMockInodeOperations(ctx), msrc, sattr)
}
// NewMockInodeOperations returns a *MockInodeOperations.
func NewMockInodeOperations(ctx context.Context) *MockInodeOperations {
return &MockInodeOperations{
UAttr: WithCurrentTime(ctx, UnstableAttr{
Perms: FilePermsFromMode(0777),
}),
}
}
// MockMountSourceOps implements fs.MountSourceOperations.
type MockMountSourceOps struct {
MountSourceOperations
keep bool
revalidate bool
}
// NewMockMountSource returns a new *MountSource using MockMountSourceOps.
func NewMockMountSource(cache *DirentCache) *MountSource {
var keep bool
if cache != nil {
keep = cache.maxSize > 0
}
return &MountSource{
MountSourceOperations: &MockMountSourceOps{keep: keep},
fscache: cache,
}
}
// Revalidate implements fs.MountSourceOperations.Revalidate.
func (n *MockMountSourceOps) Revalidate(context.Context, string, *Inode, *Inode) bool {
return n.revalidate
}
// Keep implements fs.MountSourceOperations.Keep.
func (n *MockMountSourceOps) Keep(dirent *Dirent) bool {
return n.keep
}
// CacheReaddir implements fs.MountSourceOperations.CacheReaddir.
func (n *MockMountSourceOps) CacheReaddir() bool {
// Common case: cache readdir results if there is a dirent cache.
return n.keep
}
// WriteOut implements fs.InodeOperations.WriteOut.
func (n *MockInodeOperations) WriteOut(context.Context, *Inode) error {
return nil
}
// UnstableAttr implements fs.InodeOperations.UnstableAttr.
func (n *MockInodeOperations) UnstableAttr(context.Context, *Inode) (UnstableAttr, error) {
return n.UAttr, nil
}
// IsVirtual implements fs.InodeOperations.IsVirtual.
func (n *MockInodeOperations) IsVirtual() bool {
return false
}
// Lookup implements fs.InodeOperations.Lookup.
func (n *MockInodeOperations) Lookup(ctx context.Context, dir *Inode, p string) (*Dirent, error) {
n.walkCalled = true
return NewDirent(ctx, NewInode(ctx, &MockInodeOperations{}, dir.MountSource, StableAttr{}), p), nil
}
// SetPermissions implements fs.InodeOperations.SetPermissions.
func (n *MockInodeOperations) SetPermissions(context.Context, *Inode, FilePermissions) bool {
return false
}
// SetOwner implements fs.InodeOperations.SetOwner.
func (*MockInodeOperations) SetOwner(context.Context, *Inode, FileOwner) error {
return linuxerr.EINVAL
}
// SetTimestamps implements fs.InodeOperations.SetTimestamps.
func (n *MockInodeOperations) SetTimestamps(context.Context, *Inode, TimeSpec) error {
return nil
}
// Create implements fs.InodeOperations.Create.
func (n *MockInodeOperations) Create(ctx context.Context, dir *Inode, p string, flags FileFlags, perms FilePermissions) (*File, error) {
n.createCalled = true
d := NewDirent(ctx, NewInode(ctx, &MockInodeOperations{}, dir.MountSource, StableAttr{}), p)
return &File{Dirent: d}, nil
}
// CreateLink implements fs.InodeOperations.CreateLink.
func (n *MockInodeOperations) CreateLink(_ context.Context, dir *Inode, oldname string, newname string) error {
n.createLinkCalled = true
return nil
}
// CreateDirectory implements fs.InodeOperations.CreateDirectory.
func (n *MockInodeOperations) CreateDirectory(context.Context, *Inode, string, FilePermissions) error {
n.createDirectoryCalled = true
return nil
}
// Rename implements fs.InodeOperations.Rename.
func (n *MockInodeOperations) Rename(ctx context.Context, inode *Inode, oldParent *Inode, oldName string, newParent *Inode, newName string, replacement bool) error {
n.renameCalled = true
return nil
}
// Check implements fs.InodeOperations.Check.
func (n *MockInodeOperations) Check(ctx context.Context, inode *Inode, p PermMask) bool {
return ContextCanAccessFile(ctx, inode, p)
}
// Release implements fs.InodeOperations.Release.
func (n *MockInodeOperations) Release(context.Context) {}
// Truncate implements fs.InodeOperations.Truncate.
func (n *MockInodeOperations) Truncate(ctx context.Context, inode *Inode, size int64) error {
return nil
}
// Allocate implements fs.InodeOperations.Allocate.
func (n *MockInodeOperations) Allocate(ctx context.Context, inode *Inode, offset, length int64) error {
return nil
}
// Remove implements fs.InodeOperations.Remove.
func (n *MockInodeOperations) Remove(context.Context, *Inode, string) error {
return nil
}
// RemoveDirectory implements fs.InodeOperations.RemoveDirectory.
func (n *MockInodeOperations) RemoveDirectory(context.Context, *Inode, string) error {
return nil
}
// Getlink implements fs.InodeOperations.Getlink.
func (n *MockInodeOperations) Getlink(context.Context, *Inode) (*Dirent, error) {
return nil, linuxerr.ENOLINK
}
|
