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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 #include "CheckFlags.h"
29 #include "KernelInfo.h"
30 #include "MatrixKernel.h"
31 #include "Version.h"
32 
33 namespace android {
34 namespace vintf {
35 
36 struct CompatibilityMatrix;
37 
38 // Runtime Info sent to OTA server
39 struct RuntimeInfo {
40 
RuntimeInfoRuntimeInfo41     RuntimeInfo() {}
42     virtual ~RuntimeInfo() = default;
43 
44     // /proc/version
45     // utsname.sysname
46     const std::string &osName() const;
47     // utsname.nodename
48     const std::string &nodeName() const;
49     // utsname.release
50     const std::string &osRelease() const;
51     // utsname.version
52     const std::string &osVersion() const;
53     // utsname.machine
54     const std::string &hardwareId() const;
55     // extract from utsname.release
56     const KernelVersion &kernelVersion() const;
57 
58     const std::map<std::string, std::string> &kernelConfigs() const;
59 
60     const Version &bootVbmetaAvbVersion() const;
61     const Version &bootAvbVersion() const;
62 
63     // /proc/cpuinfo
64     const std::string &cpuInfo() const;
65 
66     // /sys/fs/selinux/policyvers
67     size_t kernelSepolicyVersion() const;
68 
69     // Return whether this RuntimeInfo works with the given compatibility matrix. Return true if:
70     // - mat is a framework compat-mat
71     // - sepolicy.kernel-sepolicy-version == kernelSepolicyVersion()
72     // - /proc/config.gz matches the requirements. Note that /proc/config.gz is read when the
73     //   RuntimeInfo object is created (the first time VintfObject::GetRuntimeInfo is called),
74     //   not when RuntimeInfo::checkCompatibility is called.
75     // - avb-vbmetaversion matches related sysprops
76     bool checkCompatibility(const CompatibilityMatrix& mat, std::string* error = nullptr,
77                             CheckFlags::Type flags = CheckFlags::DEFAULT) const;
78 
79     using FetchFlags = uint32_t;
80     enum FetchFlag : FetchFlags {
81         CPU_VERSION     = 1 << 0,
82         CONFIG_GZ       = 1 << 1,
83         CPU_INFO        = 1 << 2,
84         POLICYVERS      = 1 << 3,
85         AVB             = 1 << 4,
86         LAST_PLUS_ONE,
87 
88         NONE = 0,
89         ALL = ((LAST_PLUS_ONE - 1) << 1) - 1,
90     };
91 
92    protected:
93     virtual status_t fetchAllInformation(FetchFlags flags);
94 
95     friend struct RuntimeInfoFetcher;
96     friend class VintfObject;
97     friend struct LibVintfTest;
98     friend std::string dump(const RuntimeInfo& ki, bool);
99 
100     // /proc/config.gz
101     // Key: CONFIG_xxx; Value: the value after = sign.
102     KernelInfo mKernel;
103     std::string mOsName;
104     std::string mNodeName;
105     std::string mOsRelease;
106     std::string mOsVersion;
107     std::string mHardwareId;
108 
109     std::vector<std::string> mSepolicyFilePaths;
110     std::string mCpuInfo;
111     Version mBootVbmetaAvbVersion;
112     Version mBootAvbVersion;
113 
114     size_t mKernelSepolicyVersion = 0u;
115 };
116 
117 } // namespace vintf
118 } // namespace android
119 
120 #endif // ANDROID_VINTF_RUNTIME_INFO_H
121