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 #ifndef ANDROID_VINTF_RUNTIME_INFO_H
18 #define ANDROID_VINTF_RUNTIME_INFO_H
19 
20 #include "Version.h"
21 
22 #include <map>
23 #include <string>
24 #include <vector>
25 
26 #include <utils/Errors.h>
27 
28 namespace android {
29 namespace vintf {
30 
31 struct CompatibilityMatrix;
32 
33 // Runtime Info sent to OTA server
34 struct RuntimeInfo {
35 
RuntimeInfoRuntimeInfo36     RuntimeInfo() {}
37 
38     // /proc/version
39     // utsname.sysname
40     const std::string &osName() const;
41     // utsname.nodename
42     const std::string &nodeName() const;
43     // utsname.release
44     const std::string &osRelease() const;
45     // utsname.version
46     const std::string &osVersion() const;
47     // utsname.machine
48     const std::string &hardwareId() const;
49     // extract from utsname.release
50     const KernelVersion &kernelVersion() const;
51 
52     const std::map<std::string, std::string> &kernelConfigs() const;
53 
54     const Version &bootVbmetaAvbVersion() const;
55     const Version &bootAvbVersion() const;
56 
57     // /proc/cpuinfo
58     const std::string &cpuInfo() const;
59 
60     // /sys/fs/selinux/policyvers
61     size_t kernelSepolicyVersion() const;
62 
63     // Return whether this RuntimeInfo works with the given compatibility matrix. Return true if:
64     // - mat is a framework compat-mat
65     // - sepolicy.kernel-sepolicy-version == kernelSepolicyVersion()
66     // - /proc/config.gz matches the requirements. Note that /proc/config.gz is read when the
67     //   RuntimeInfo object is created (the first time VintfObject::GetRuntimeInfo is called),
68     //   not when RuntimeInfo::checkCompatibility is called.
69     // - avb-vbmetaversion matches related sysprops
70     bool checkCompatibility(const CompatibilityMatrix &mat,
71             std::string *error = nullptr) const;
72 
73 private:
74 
75     friend struct RuntimeInfoFetcher;
76     friend class VintfObject;
77     friend struct LibVintfTest;
78     friend std::string dump(const RuntimeInfo &ki);
79 
80     status_t fetchAllInformation();
81 
82     // /proc/config.gz
83     // Key: CONFIG_xxx; Value: the value after = sign.
84     std::map<std::string, std::string> mKernelConfigs;
85     std::string mOsName;
86     std::string mNodeName;
87     std::string mOsRelease;
88     std::string mOsVersion;
89     std::string mHardwareId;
90     KernelVersion mKernelVersion;
91 
92     std::vector<std::string> mSepolicyFilePaths;
93     std::string mCpuInfo;
94     Version mBootVbmetaAvbVersion;
95     Version mBootAvbVersion;
96 
97     size_t mKernelSepolicyVersion;
98 
99 };
100 
101 } // namespace vintf
102 } // namespace android
103 
104 #endif // ANDROID_VINTF_RUNTIME_INFO_H
105