1 /* 2 ** 3 ** Copyright 2017, The Android Open Source Project 4 ** 5 ** Licensed under the Apache License, Version 2.0 (the "License"); 6 ** you may not use this file except in compliance with the License. 7 ** You may obtain a copy of the License at 8 ** 9 ** http://www.apache.org/licenses/LICENSE-2.0 10 ** 11 ** Unless required by applicable law or agreed to in writing, software 12 ** distributed under the License is distributed on an "AS IS" BASIS, 13 ** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 14 ** See the License for the specific language governing permissions and 15 ** limitations under the License. 16 */ 17 18 #include "include/keystore/KeystoreArguments.h" 19 #include "keystore_aidl_hidl_marshalling_utils.h" 20 21 #include <binder/Parcel.h> 22 23 namespace android { 24 namespace security { 25 26 using ::android::security::KeystoreArg; 27 using ::android::security::KeystoreArguments; 28 29 const ssize_t MAX_GENERATE_ARGS = 3; 30 status_t KeystoreArguments::readFromParcel(const android::Parcel* in) { 31 ssize_t numArgs = in->readInt32(); 32 if (numArgs > MAX_GENERATE_ARGS) { 33 return BAD_VALUE; 34 } 35 if (numArgs > 0) { 36 for (size_t i = 0; i < static_cast<size_t>(numArgs); i++) { 37 ssize_t inSize = in->readInt32(); 38 if (inSize >= 0 && static_cast<size_t>(inSize) <= in->dataAvail()) { 39 sp<KeystoreArg> arg = new KeystoreArg(in->readInplace(inSize), inSize); 40 args.push_back(arg); 41 } else { 42 args.push_back(NULL); 43 } 44 } 45 } 46 return OK; 47 }; 48 49 status_t KeystoreArguments::writeToParcel(android::Parcel* out) const { 50 out->writeInt32(args.size()); 51 for (sp<KeystoreArg> item : args) { 52 size_t keyLength = item->size(); 53 out->writeInt32(keyLength); 54 void* buf = out->writeInplace(keyLength); 55 memcpy(buf, item->data(), keyLength); 56 } 57 return OK; 58 } 59 60 } // namespace security 61 } // namespace android 62
