/* Copyright 2017 The Android Open Source Project
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND ANY
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* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR ANY
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* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */
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#include "keystore_backend_hidl.h"
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#include <android/system/wifi/keystore/1.0/IKeystore.h>
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#include <log/log.h>
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using android::hardware::hidl_vec;
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using android::hardware::Return;
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using android::sp;
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using android::system::wifi::keystore::V1_0::IKeystore;
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int32_t KeystoreBackendHidl::sign(
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const char *key_id, const uint8_t* in, size_t len, uint8_t** reply,
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size_t* reply_len) {
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if (key_id == nullptr || in == nullptr || reply == nullptr || reply_len == nullptr) {
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ALOGE("Null pointer argument passed");
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return -1;
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}
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sp<IKeystore> service = IKeystore::tryGetService();
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if (service == nullptr) {
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ALOGE("could not contact keystore HAL");
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return -1;
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}
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bool success = false;
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auto cb = [&](IKeystore::KeystoreStatusCode status,
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hidl_vec<uint8_t> signedData) {
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if (status == IKeystore::KeystoreStatusCode::SUCCESS) {
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*reply_len = signedData.size();
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*reply = signedData.releaseData();
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success = true;
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}
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};
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Return<void> ret = service->sign(
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key_id, std::vector<uint8_t>(in, in + len), cb);
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if (!ret.isOk() || !success) {
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return 1;
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}
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return 0;
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}
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int32_t KeystoreBackendHidl::get_pubkey(
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const char *key_id, uint8_t** pubkey, size_t* pubkey_len) {
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if (key_id == nullptr || pubkey == nullptr || pubkey_len == nullptr) {
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ALOGE("Null pointer argument passed");
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return -1;
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}
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sp<IKeystore> service = IKeystore::tryGetService();
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if (service == nullptr) {
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ALOGE("could not contact keystore HAL");
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return -1;
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}
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bool success = false;
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auto cb = [&](IKeystore::KeystoreStatusCode status,
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hidl_vec<uint8_t> publicKey) {
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if (status == IKeystore::KeystoreStatusCode::SUCCESS) {
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*pubkey_len = publicKey.size();
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*pubkey = publicKey.releaseData();
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success = true;
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}
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};
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Return<void> ret = service->getPublicKey(key_id, cb);
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if (!ret.isOk() || !success) {
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return 1;
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}
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return 0;
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}
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