ff1458f670
A new module type 'apex_key' is defined to specify public and private key pair for APEXs. An APEX can refer to the module via the property 'key'. When building the APEX, the private key from the key module is used to sign it. In addition, the public key from the key module is automatically installed to /system/etc/security/apex. Bug: 115721587 Test: m apex.test; m /apex/com.android.example.apex@1 exists Change-Id: I82666db095bd7a09f6c1b9cbea2db57ebc076cbf
88 lines
2.7 KiB
Go
88 lines
2.7 KiB
Go
// Copyright (C) 2018 The Android Open Source Project
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package apex
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import (
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"fmt"
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"io"
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"android/soong/android"
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"github.com/google/blueprint/proptools"
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)
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var String = proptools.String
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func init() {
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android.RegisterModuleType("apex_key", apexKeyFactory)
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}
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type apexKey struct {
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android.ModuleBase
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properties apexKeyProperties
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public_key_file android.Path
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private_key_file android.Path
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keyName string
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}
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type apexKeyProperties struct {
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// Path to the public key file in avbpubkey format. Installed to the device.
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// Base name of the file is used as the ID for the key.
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Public_key *string
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// Path to the private key file in pem format. Used to sign APEXs.
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Private_key *string
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}
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func apexKeyFactory() android.Module {
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module := &apexKey{}
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module.AddProperties(&module.properties)
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android.InitAndroidModule(module)
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return module
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}
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func (m *apexKey) DepsMutator(ctx android.BottomUpMutatorContext) {
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}
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func (m *apexKey) GenerateAndroidBuildActions(ctx android.ModuleContext) {
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m.public_key_file = android.PathForModuleSrc(ctx, String(m.properties.Public_key))
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m.private_key_file = android.PathForModuleSrc(ctx, String(m.properties.Private_key))
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pubKeyName := m.public_key_file.Base()[0 : len(m.public_key_file.Base())-len(m.public_key_file.Ext())]
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privKeyName := m.private_key_file.Base()[0 : len(m.private_key_file.Base())-len(m.private_key_file.Ext())]
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if pubKeyName != privKeyName {
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ctx.ModuleErrorf("public_key %q (keyname:%q) and private_key %q (keyname:%q) do not have same keyname",
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m.public_key_file.String(), pubKeyName, m.private_key_file, privKeyName)
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return
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}
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m.keyName = pubKeyName
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ctx.InstallFile(android.PathForModuleInstall(ctx, "etc/security/apex"), m.keyName, m.public_key_file)
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}
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func (m *apexKey) AndroidMk() android.AndroidMkData {
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return android.AndroidMkData{
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Class: "ETC",
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OutputFile: android.OptionalPathForPath(m.public_key_file),
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Extra: []android.AndroidMkExtraFunc{
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func(w io.Writer, outputFile android.Path) {
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fmt.Fprintln(w, "LOCAL_MODULE_PATH :=", "$(TARGET_OUT)/etc/security/apex")
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fmt.Fprintln(w, "LOCAL_INSTALLED_MODULE_STEM :=", m.keyName)
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},
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},
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}
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}
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