/
metadata.go
104 lines (97 loc) · 3.75 KB
/
metadata.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 2023 Google LLC. All Rights Reserved.
//
// 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 build
import (
"fmt"
"os"
"path/filepath"
"golang.org/x/mod/sumdb/note"
)
func NewReleaseImplicitMetadata(logV, osV1, osV2, appV, bootV, recoveryV string) (*ReleaseImplicitMetadata, error) {
osReleaseVerifier1, err := note.NewVerifier(osV1)
if err != nil {
return nil, fmt.Errorf("failed to construct OS release verifier: %v", err)
}
osReleaseVerifier2, err := note.NewVerifier(osV2)
if err != nil {
return nil, fmt.Errorf("failed to construct OS release verifier: %v", err)
}
appletReleaseVerifier, err := note.NewVerifier(appV)
if err != nil {
return nil, fmt.Errorf("failed to construct applet release verifier: %v", err)
}
bootReleaseVerifier, err := note.NewVerifier(bootV)
if err != nil {
return nil, fmt.Errorf("failed to construct boot release verifier: %v", err)
}
recoveryReleaseVerifier, err := note.NewVerifier(recoveryV)
if err != nil {
return nil, fmt.Errorf("failed to construct recovery release verifier: %v", err)
}
allV := note.VerifierList(osReleaseVerifier1, osReleaseVerifier2, appletReleaseVerifier, bootReleaseVerifier, recoveryReleaseVerifier)
dir, err := os.MkdirTemp("", "armored-witness-build-keys")
if err != nil {
return nil, fmt.Errorf("failed to create temp directory: %v", err)
}
logFile := filepath.Join(dir, "pubkey_log.pub")
os1File := filepath.Join(dir, "pubkey_os1.pub")
os2File := filepath.Join(dir, "pubkey_os2.pub")
appletFile := filepath.Join(dir, "pubkey_applet.pub")
if err := os.WriteFile(logFile, []byte(logV), 0644); err != nil {
return nil, fmt.Errorf("failed to create public key file: %v", err)
}
if err := os.WriteFile(os1File, []byte(osV1), 0644); err != nil {
return nil, fmt.Errorf("failed to create public key file: %v", err)
}
if err := os.WriteFile(os2File, []byte(osV2), 0644); err != nil {
return nil, fmt.Errorf("failed to create public key file: %v", err)
}
if err := os.WriteFile(appletFile, []byte(appV), 0644); err != nil {
return nil, fmt.Errorf("failed to create public key file: %v", err)
}
return &ReleaseImplicitMetadata{
OSV1: osReleaseVerifier1,
OSV2: osReleaseVerifier2,
AppV: appletReleaseVerifier,
BootV: bootReleaseVerifier,
RecoveryV: recoveryReleaseVerifier,
AllV: allV,
Envs: []string{
fmt.Sprintf("LOG_PUBLIC_KEY=%s", logFile),
fmt.Sprintf("APPLET_PUBLIC_KEY=%s", appletFile),
fmt.Sprintf("OS_PUBLIC_KEY1=%s", os1File),
fmt.Sprintf("OS_PUBLIC_KEY2=%s", os2File),
},
Cleanup: func() {
os.RemoveAll(dir)
},
}, nil
}
// ReleaseImplicitMetadata stores all of the information needed to reproduce and
// verify releases. This is all of the data that is not passed in-band with the
// release (i.e. is not in the Makefile or code).
// In order to be maximally useful this exposes its state as env variables, which
// is how they are consumed. Some of these point at files, which need to be cleaned
// up after usage. This cleanup must be done by the owner of this object via the
// cleanup function.
type ReleaseImplicitMetadata struct {
OSV1 note.Verifier
OSV2 note.Verifier
AppV note.Verifier
BootV note.Verifier
RecoveryV note.Verifier
AllV note.Verifiers
Envs []string
Cleanup func()
}