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
17package android.os;
18
19import java.util.Map;
20
21
22/**
23 * Java API for libvintf.
24 * @hide
25 */
26public class VintfObject {
27
28    /// ---------- OTA
29
30    /**
31     * Slurps all device information (both manifests and both matrices)
32     * and report them.
33     * If any error in getting one of the manifests, it is not included in
34     * the list.
35     */
36    public static native String[] report();
37
38    /**
39     * Verify that the given metadata for an OTA package is compatible with
40     * this device.
41     *
42     * @param packageInfo a list of serialized form of HalManifest's /
43     * CompatibilityMatri'ces (XML).
44     * @return = 0 if success (compatible)
45     *         > 0 if incompatible
46     *         < 0 if any error (mount partition fails, illformed XML, etc.)
47     */
48    public static native int verify(String[] packageInfo);
49
50    /**
51     * Verify Vintf compatibility on the device without checking AVB
52     * (Android Verified Boot). It is useful to verify a running system
53     * image where AVB check is irrelevant.
54     *
55     * @return = 0 if success (compatible)
56     *         > 0 if incompatible
57     *         < 0 if any error (mount partition fails, illformed XML, etc.)
58     */
59    public static native int verifyWithoutAvb();
60
61    /// ---------- CTS Device Info
62
63    /**
64     * @return a list of HAL names and versions that is supported by this
65     * device as stated in device and framework manifests. For example,
66     * ["android.hidl.manager@1.0", "android.hardware.camera.device@1.0",
67     *  "android.hardware.camera.device@3.2"]. There are no duplicates.
68     */
69    public static native String[] getHalNamesAndVersions();
70
71    /**
72     * @return the BOARD_SEPOLICY_VERS build flag available in device manifest.
73     */
74    public static native String getSepolicyVersion();
75
76    /**
77     * @return a list of VNDK snapshots supported by the framework, as
78     * specified in framework manifest. For example,
79     * [("27", ["libjpeg.so", "libbase.so"]),
80     *  ("28", ["libjpeg.so", "libbase.so"])]
81     */
82    public static native Map<String, String[]> getVndkSnapshots();
83
84    /**
85     * @return target FCM version, a number specified in the device manifest
86     * indicating the FCM version that the device manifest implements. Null if
87     * device manifest doesn't specify this number (for legacy devices).
88     */
89    public static native Long getTargetFrameworkCompatibilityMatrixVersion();
90}
91