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
|
// Copyright 2020 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 fuse
import (
"io"
"testing"
"gvisor.dev/gvisor/pkg/abi/linux"
"gvisor.dev/gvisor/pkg/marshal"
"gvisor.dev/gvisor/pkg/sentry/fsimpl/testutil"
"gvisor.dev/gvisor/pkg/sentry/kernel"
"gvisor.dev/gvisor/pkg/sentry/kernel/auth"
"gvisor.dev/gvisor/pkg/sentry/vfs"
"gvisor.dev/gvisor/pkg/usermem"
)
func setup(t *testing.T) *testutil.System {
k, err := testutil.Boot()
if err != nil {
t.Fatalf("Error creating kernel: %v", err)
}
ctx := k.SupervisorContext()
creds := auth.CredentialsFromContext(ctx)
k.VFS().MustRegisterFilesystemType(Name, &FilesystemType{}, &vfs.RegisterFilesystemTypeOptions{
AllowUserList: true,
AllowUserMount: true,
})
mntns, err := k.VFS().NewMountNamespace(ctx, creds, "", "tmpfs", &vfs.MountOptions{})
if err != nil {
t.Fatalf("NewMountNamespace(): %v", err)
}
return testutil.NewSystem(ctx, t, k.VFS(), mntns)
}
// newTestConnection creates a fuse connection that the sentry can communicate with
// and the FD for the server to communicate with.
func newTestConnection(system *testutil.System, k *kernel.Kernel, maxActiveRequests uint64) (*connection, *vfs.FileDescription, error) {
vfsObj := &vfs.VirtualFilesystem{}
fuseDev := &DeviceFD{}
if err := vfsObj.Init(system.Ctx); err != nil {
return nil, nil, err
}
vd := vfsObj.NewAnonVirtualDentry("genCountFD")
defer vd.DecRef(system.Ctx)
if err := fuseDev.vfsfd.Init(fuseDev, linux.O_RDWR|linux.O_CREAT, vd.Mount(), vd.Dentry(), &vfs.FileDescriptionOptions{}); err != nil {
return nil, nil, err
}
fsopts := filesystemOptions{
maxActiveRequests: maxActiveRequests,
}
fs, err := newFUSEFilesystem(system.Ctx, 0, &fsopts, &fuseDev.vfsfd)
if err != nil {
return nil, nil, err
}
return fs.conn, &fuseDev.vfsfd, nil
}
type testPayload struct {
marshal.StubMarshallable
data uint32
}
// SizeBytes implements marshal.Marshallable.SizeBytes.
func (t *testPayload) SizeBytes() int {
return 4
}
// MarshalBytes implements marshal.Marshallable.MarshalBytes.
func (t *testPayload) MarshalBytes(dst []byte) {
usermem.ByteOrder.PutUint32(dst[:4], t.data)
}
// UnmarshalBytes implements marshal.Marshallable.UnmarshalBytes.
func (t *testPayload) UnmarshalBytes(src []byte) {
*t = testPayload{data: usermem.ByteOrder.Uint32(src[:4])}
}
// Packed implements marshal.Marshallable.Packed.
func (t *testPayload) Packed() bool {
return true
}
// MarshalUnsafe implements marshal.Marshallable.MarshalUnsafe.
func (t *testPayload) MarshalUnsafe(dst []byte) {
t.MarshalBytes(dst)
}
// UnmarshalUnsafe implements marshal.Marshallable.UnmarshalUnsafe.
func (t *testPayload) UnmarshalUnsafe(src []byte) {
t.UnmarshalBytes(src)
}
// CopyOutN implements marshal.Marshallable.CopyOutN.
func (t *testPayload) CopyOutN(task marshal.CopyContext, addr usermem.Addr, limit int) (int, error) {
panic("not implemented")
}
// CopyOut implements marshal.Marshallable.CopyOut.
func (t *testPayload) CopyOut(task marshal.CopyContext, addr usermem.Addr) (int, error) {
panic("not implemented")
}
// CopyIn implements marshal.Marshallable.CopyIn.
func (t *testPayload) CopyIn(task marshal.CopyContext, addr usermem.Addr) (int, error) {
panic("not implemented")
}
// WriteTo implements io.WriterTo.WriteTo.
func (t *testPayload) WriteTo(w io.Writer) (int64, error) {
panic("not implemented")
}
|
