1 /*
2 * Copyright (C) 2021 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 "ArtifactsSignedTest"
18
19 #include "jni.h"
20 #include <nativehelper/JNIHelp.h>
21 #include <nativehelper/ScopedUtfChars.h>
22
23 #include <android/log.h>
24
25 #include <errno.h>
26 #include <fcntl.h>
27 #include <sys/stat.h>
28 #include <sys/types.h>
29 #include <unistd.h>
30
31 #define ALOGE(...) __android_log_print(ANDROID_LOG_ERROR, LOG_TAG, __VA_ARGS__)
32
33 extern "C" JNIEXPORT jboolean JNICALL
Java_com_android_tests_odsign_ArtifactsSignedTest_hasFsverityNative(JNIEnv * env,jobject,jstring filePath)34 Java_com_android_tests_odsign_ArtifactsSignedTest_hasFsverityNative(
35 JNIEnv *env, jobject /*thiz*/, jstring filePath) {
36 ScopedUtfChars path(env, filePath);
37
38 struct statx out = {};
39 if (statx(AT_FDCWD, path.c_str(), /*flags=*/ 0, STATX_ALL, &out) != 0) {
40 ALOGE("statx failed at %s", path.c_str());
41 return JNI_FALSE;
42 }
43
44 // Make sure we actually support ATTR_VERITY
45 if ((out.stx_attributes_mask & STATX_ATTR_VERITY) == 0) {
46 ALOGE("STATX_ATTR_VERITY not supported by kernel");
47 return JNI_FALSE;
48 }
49
50 return (out.stx_attributes & STATX_ATTR_VERITY) != 0 ? JNI_TRUE : JNI_FALSE;
51 }
52