/
filesystem.go
104 lines (94 loc) · 2.6 KB
/
filesystem.go
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
// Copyright 2016 CoreOS, Inc.
//
// 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 types
import (
"github.com/coreos/ignition/v2/config/shared/errors"
"github.com/coreos/ignition/v2/config/util"
"github.com/coreos/vcontext/path"
"github.com/coreos/vcontext/report"
)
func (f Filesystem) Key() string {
return f.Device
}
func (f Filesystem) IgnoreDuplicates() map[string]struct{} {
return map[string]struct{}{
"Options": {},
}
}
func (f Filesystem) Validate(c path.ContextPath) (r report.Report) {
r.AddOnError(c.Append("path"), f.validatePath())
r.AddOnError(c.Append("device"), validatePath(f.Device))
r.AddOnError(c.Append("format"), f.validateFormat())
r.AddOnError(c.Append("label"), f.validateLabel())
return
}
func (f Filesystem) validatePath() error {
return validatePathNilOK(f.Path)
}
func (f Filesystem) validateFormat() error {
if util.NilOrEmpty(f.Format) {
if util.NotEmpty(f.Path) ||
util.NotEmpty(f.Label) ||
util.NotEmpty(f.UUID) ||
util.IsTrue(f.WipeFilesystem) ||
len(f.Options) != 0 {
return errors.ErrFormatNilWithOthers
}
} else {
switch *f.Format {
case "ext4", "btrfs", "xfs", "swap", "vfat":
default:
return errors.ErrFilesystemInvalidFormat
}
}
return nil
}
func (f Filesystem) validateLabel() error {
if util.NilOrEmpty(f.Label) {
return nil
}
if util.NilOrEmpty(f.Format) {
return errors.ErrLabelNeedsFormat
}
switch *f.Format {
case "ext4":
if len(*f.Label) > 16 {
// source: man mkfs.ext4
return errors.ErrExt4LabelTooLong
}
case "btrfs":
if len(*f.Label) > 256 {
// source: man mkfs.btrfs
return errors.ErrBtrfsLabelTooLong
}
case "xfs":
if len(*f.Label) > 12 {
// source: man mkfs.xfs
return errors.ErrXfsLabelTooLong
}
case "swap":
// mkswap's man page does not state a limit on label size, but through
// experimentation it appears that mkswap will truncate long labels to
// 15 characters, so let's enforce that.
if len(*f.Label) > 15 {
return errors.ErrSwapLabelTooLong
}
case "vfat":
if len(*f.Label) > 11 {
// source: man mkfs.fat
return errors.ErrVfatLabelTooLong
}
}
return nil
}