Paul Stewart | bf7fc8d | 2017-03-10 16:22:03 -0800 | [diff] [blame] | 1 | /* Copyright 2017 The Android Open Source Project |
| 2 | * |
| 3 | * Redistribution and use in source and binary forms, with or without |
| 4 | * modification, are permitted provided that the following conditions |
| 5 | * are met: |
| 6 | * 1. Redistributions of source code must retain the above copyright |
| 7 | * notice, this list of conditions and the following disclaimer. |
| 8 | * 2. Redistributions in binary form must reproduce the above copyright |
| 9 | * notice, this list of conditions and the following disclaimer in the |
| 10 | * documentation and/or other materials provided with the distribution. |
| 11 | * |
| 12 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND ANY |
| 13 | * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED |
| 14 | * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
| 15 | * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR ANY |
| 16 | * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES |
| 17 | * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; |
| 18 | * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND |
| 19 | * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| 20 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
| 21 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ |
| 22 | |
Paul Stewart | bf7fc8d | 2017-03-10 16:22:03 -0800 | [diff] [blame] | 23 | #include <android/system/wifi/keystore/1.0/IKeystore.h> |
Steven Moreland | 4cb6f38 | 2017-04-06 11:48:19 -0700 | [diff] [blame] | 24 | #include <log/log.h> |
Paul Stewart | bf7fc8d | 2017-03-10 16:22:03 -0800 | [diff] [blame] | 25 | |
| 26 | #include <keystore/keystore_get.h> |
| 27 | |
| 28 | using namespace android; |
| 29 | |
| 30 | using android::hardware::hidl_string; |
| 31 | using android::hardware::hidl_vec; |
| 32 | using android::hardware::Return; |
| 33 | using android::sp; |
| 34 | using android::system::wifi::keystore::V1_0::IKeystore; |
| 35 | |
| 36 | ssize_t keystore_get(const char *key, size_t keyLength, uint8_t** value) { |
Yi Kong | e353f25 | 2018-07-30 01:38:39 -0700 | [diff] [blame] | 37 | if (key == nullptr || keyLength == 0 || value == nullptr) { |
Paul Stewart | bf7fc8d | 2017-03-10 16:22:03 -0800 | [diff] [blame] | 38 | ALOGE("Null pointer argument passed"); |
| 39 | return -1; |
| 40 | } |
| 41 | |
Roshan Pius | e653c93 | 2017-03-29 10:08:47 -0700 | [diff] [blame] | 42 | sp<IKeystore> service = IKeystore::tryGetService(); |
Yi Kong | e353f25 | 2018-07-30 01:38:39 -0700 | [diff] [blame] | 43 | if (service == nullptr) { |
Paul Stewart | bf7fc8d | 2017-03-10 16:22:03 -0800 | [diff] [blame] | 44 | ALOGE("could not contact keystore HAL"); |
| 45 | return -1; |
| 46 | } |
| 47 | |
| 48 | ssize_t return_size; |
| 49 | bool success = false; |
| 50 | auto cb = [&](IKeystore::KeystoreStatusCode status, hidl_vec<uint8_t> returnedValue) { |
| 51 | if (status == IKeystore::KeystoreStatusCode::SUCCESS) { |
| 52 | return_size = returnedValue.size(); |
| 53 | *value = returnedValue.releaseData(); |
| 54 | success = true; |
| 55 | } |
| 56 | }; |
| 57 | |
| 58 | Return<void> ret = service->getBlob(hidl_string(key, keyLength), cb); |
| 59 | return ret.isOk() && success ? return_size : -1; |
| 60 | } |