1 /*
2 * Copyright (C) 2017 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 * http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17 #define LOG_TAG "hwservicemanager"
18 //#define LOG_NDEBUG 0
19
20 #include "Vintf.h"
21
22 #include <android-base/logging.h>
23 #include <vintf/parse_string.h>
24 #include <vintf/VintfObject.h>
25
26 namespace android {
27 namespace hardware {
28
getTransportFromManifest(const FQName & fqName,const std::string & instanceName,const std::shared_ptr<const vintf::HalManifest> & vm)29 vintf::Transport getTransportFromManifest(
30 const FQName &fqName, const std::string &instanceName,
31 const std::shared_ptr<const vintf::HalManifest>& vm) {
32 if (vm == nullptr) {
33 return vintf::Transport::EMPTY;
34 }
35 return vm->getHidlTransport(fqName.package(), fqName.getVersion(),
36 fqName.name(), instanceName);
37 }
38
getTransport(const std::string & interfaceName,const std::string & instanceName)39 vintf::Transport getTransport(const std::string &interfaceName, const std::string &instanceName) {
40 FQName fqName;
41
42 if (!FQName::parse(interfaceName, &fqName)) {
43 LOG(ERROR) << __FUNCTION__ << ": " << interfaceName
44 << " is not a valid fully-qualified name.";
45 return vintf::Transport::EMPTY;
46 }
47 if (!fqName.hasVersion()) {
48 LOG(ERROR) << __FUNCTION__ << ": " << fqName.string()
49 << " does not specify a version.";
50 return vintf::Transport::EMPTY;
51 }
52 if (fqName.name().empty()) {
53 LOG(ERROR) << __FUNCTION__ << ": " << fqName.string()
54 << " does not specify an interface name.";
55 return vintf::Transport::EMPTY;
56 }
57
58 vintf::Transport tr = getTransportFromManifest(fqName, instanceName,
59 vintf::VintfObject::GetFrameworkHalManifest());
60 if (tr != vintf::Transport::EMPTY) {
61 return tr;
62 }
63 tr = getTransportFromManifest(fqName, instanceName,
64 vintf::VintfObject::GetDeviceHalManifest());
65 if (tr != vintf::Transport::EMPTY) {
66 return tr;
67 }
68
69 LOG(INFO) << __FUNCTION__ << ": Cannot find entry " << fqName.string() << "/" << instanceName
70 << " in either framework or device VINTF manifest.";
71 return vintf::Transport::EMPTY;
72 }
73
insertManifestInstances(const FQName & fqName,const std::shared_ptr<const vintf::HalManifest> & manifest,const std::string & manifestType,std::set<std::string> * toSet)74 static void insertManifestInstances(const FQName& fqName,
75 const std::shared_ptr<const vintf::HalManifest>& manifest,
76 const std::string& manifestType,
77 std::set<std::string>* toSet) {
78 if (manifest == nullptr) {
79 LOG(ERROR) << "Device is missing " << manifestType << " manifest.";
80 return;
81 }
82
83 std::set<std::string> manifestSet = manifest->getHidlInstances(
84 fqName.package(), fqName.getVersion(), fqName.name());
85
86 toSet->insert(manifestSet.begin(), manifestSet.end());
87 }
88
getInstances(const std::string & interfaceName)89 std::set<std::string> getInstances(const std::string& interfaceName) {
90 FQName fqName;
91 if (!FQName::parse(interfaceName, &fqName) || !fqName.isFullyQualified() ||
92 fqName.isValidValueName() || !fqName.isInterfaceName()) {
93 LOG(ERROR) << __FUNCTION__ << ": " << interfaceName
94 << " is not a valid fully-qualified name.";
95 return {};
96 }
97
98 std::set<std::string> ret;
99
100 insertManifestInstances(
101 fqName, vintf::VintfObject::GetDeviceHalManifest(), "device", &ret);
102 insertManifestInstances(
103 fqName, vintf::VintfObject::GetFrameworkHalManifest(), "framework", &ret);
104
105 return ret;
106 }
107
108
109 } // hardware
110 } // android
111