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 <hidl-util/FQName.h>
24 #include <vintf/VintfObject.h>
25 #include <vintf/parse_string.h>
26
27 namespace android {
28 namespace hardware {
29
getTransportFromManifest(const FQName & fqName,const std::string & instanceName,const std::shared_ptr<const vintf::HalManifest> & vm)30 vintf::Transport getTransportFromManifest(
31 const FQName &fqName, const std::string &instanceName,
32 const std::shared_ptr<const vintf::HalManifest>& vm) {
33 if (vm == nullptr) {
34 return vintf::Transport::EMPTY;
35 }
36 return vm->getHidlTransport(fqName.package(), fqName.getVersion(),
37 fqName.name(), instanceName);
38 }
39
getTransport(const std::string & interfaceName,const std::string & instanceName)40 vintf::Transport getTransport(const std::string &interfaceName, const std::string &instanceName) {
41 FQName fqName;
42
43 if (!FQName::parse(interfaceName, &fqName)) {
44 LOG(ERROR) << __FUNCTION__ << ": " << interfaceName
45 << " is not a valid fully-qualified name.";
46 return vintf::Transport::EMPTY;
47 }
48 if (!fqName.hasVersion()) {
49 LOG(ERROR) << __FUNCTION__ << ": " << fqName.string()
50 << " does not specify a version.";
51 return vintf::Transport::EMPTY;
52 }
53 if (fqName.name().empty()) {
54 LOG(ERROR) << __FUNCTION__ << ": " << fqName.string()
55 << " does not specify an interface name.";
56 return vintf::Transport::EMPTY;
57 }
58
59 vintf::Transport tr = getTransportFromManifest(fqName, instanceName,
60 vintf::VintfObject::GetFrameworkHalManifest());
61 if (tr != vintf::Transport::EMPTY) {
62 return tr;
63 }
64 tr = getTransportFromManifest(fqName, instanceName,
65 vintf::VintfObject::GetDeviceHalManifest());
66 if (tr != vintf::Transport::EMPTY) {
67 return tr;
68 }
69
70 LOG(INFO) << __FUNCTION__ << ": Cannot find entry " << fqName.string() << "/" << instanceName
71 << " in either framework or device VINTF manifest.";
72 return vintf::Transport::EMPTY;
73 }
74
insertManifestInstances(const FQName & fqName,const std::shared_ptr<const vintf::HalManifest> & manifest,const std::string & manifestType,std::set<std::string> * toSet)75 static void insertManifestInstances(const FQName& fqName,
76 const std::shared_ptr<const vintf::HalManifest>& manifest,
77 const std::string& manifestType,
78 std::set<std::string>* toSet) {
79 if (manifest == nullptr) {
80 LOG(ERROR) << "Device is missing " << manifestType << " manifest.";
81 return;
82 }
83
84 std::set<std::string> manifestSet = manifest->getHidlInstances(
85 fqName.package(), fqName.getVersion(), fqName.name());
86
87 toSet->insert(manifestSet.begin(), manifestSet.end());
88 }
89
getInstances(const std::string & interfaceName)90 std::set<std::string> getInstances(const std::string& interfaceName) {
91 FQName fqName;
92 if (!FQName::parse(interfaceName, &fqName) || !fqName.isFullyQualified() ||
93 fqName.isValidValueName() || !fqName.isInterfaceName()) {
94 LOG(ERROR) << __FUNCTION__ << ": " << interfaceName
95 << " is not a valid fully-qualified name.";
96 return {};
97 }
98
99 std::set<std::string> ret;
100
101 insertManifestInstances(
102 fqName, vintf::VintfObject::GetDeviceHalManifest(), "device", &ret);
103 insertManifestInstances(
104 fqName, vintf::VintfObject::GetFrameworkHalManifest(), "framework", &ret);
105
106 return ret;
107 }
108
109
110 } // hardware
111 } // android
112