1 /*
2 * Copyright (C) 2016 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 "dumpstate"
18
19 #include "DumpstateDevice.h"
20
21 #include <log/log.h>
22
23 #include "DumpstateUtil.h"
24
25 using android::os::dumpstate::DumpFileToFd;
26 using android::os::dumpstate::RunCommandToFd;
27
28 namespace android {
29 namespace hardware {
30 namespace dumpstate {
31 namespace V1_0 {
32 namespace implementation {
33
34 // Methods from ::android::hardware::dumpstate::V1_0::IDumpstateDevice follow.
dumpstateBoard(const hidl_handle & handle)35 Return<void> DumpstateDevice::dumpstateBoard(const hidl_handle& handle) {
36 // NOTE: this is just an example on how to use the DumpstateUtil.h functions to implement
37 // this interface - since HIDL_FETCH_IDumpstateDevice() is not defined, this function will never
38 // be called by dumpstate.
39
40 if (handle->numFds < 1) {
41 ALOGE("no FDs\n");
42 return Void();
43 }
44
45 int fd = handle->data[0];
46 if (fd < 0) {
47 ALOGE("invalid FD: %d\n", handle->data[0]);
48 return Void();
49 }
50 ALOGD("DumpstateDevice::dumpstateBoard() FD: %d\n", fd);
51 ALOGI("Dumpstate HIDL not provided by device\n");
52 dprintf(fd, "Dumpstate HIDL not provided by device; providing bogus data.\n");
53
54 // Shows some examples on how to use the libdumpstateutil API.
55 RunCommandToFd(fd, "DATE", {"/vendor/bin/date"});
56 DumpFileToFd(fd, "HOSTS", "/system/etc/hosts");
57
58 return Void();
59 }
60
61 } // namespace implementation
62 } // namespace V1_0
63 } // namespace dumpstate
64 } // namespace hardware
65 } // namespace android
66