Andrew Scull | e4e2ffc | 2017-08-10 10:03:20 +0100 | [diff] [blame] | 1 | /* |
| 2 | * Copyright 2017, 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 | #include "KeymasterDevice.h" |
nagendra modadugu | 9747140 | 2017-09-27 14:01:00 -0700 | [diff] [blame] | 18 | #include "import_key.h" |
nagendra modadugu | ec66730 | 2017-12-04 21:37:22 -0800 | [diff] [blame^] | 19 | #include "import_wrapped_key.h" |
nagendra modadugu | 284b939 | 2017-09-27 13:51:23 -0700 | [diff] [blame] | 20 | #include "proto_utils.h" |
| 21 | |
nagendra modadugu | 9e8c856 | 2017-09-18 18:58:54 -0700 | [diff] [blame] | 22 | #include <Keymaster.client.h> |
Andrew Scull | 8e96ff0 | 2017-10-09 11:09:09 +0100 | [diff] [blame] | 23 | #include <nos/debug.h> |
nagendra modadugu | 284b939 | 2017-09-27 13:51:23 -0700 | [diff] [blame] | 24 | #include <nos/NuggetClient.h> |
Andrew Scull | e4e2ffc | 2017-08-10 10:03:20 +0100 | [diff] [blame] | 25 | |
| 26 | #include <android-base/logging.h> |
| 27 | |
| 28 | namespace android { |
| 29 | namespace hardware { |
| 30 | namespace keymaster { |
| 31 | |
nagendra modadugu | 8a88337 | 2017-09-18 22:29:00 -0700 | [diff] [blame] | 32 | // std |
| 33 | using std::string; |
| 34 | |
Andrew Scull | e4e2ffc | 2017-08-10 10:03:20 +0100 | [diff] [blame] | 35 | // libhidl |
| 36 | using ::android::hardware::Void; |
| 37 | |
| 38 | // HAL |
nagendra modadugu | ec66730 | 2017-12-04 21:37:22 -0800 | [diff] [blame^] | 39 | using ::android::hardware::keymaster::V4_0::Algorithm; |
| 40 | using ::android::hardware::keymaster::V4_0::KeyCharacteristics; |
nagendra modadugu | 284b939 | 2017-09-27 13:51:23 -0700 | [diff] [blame] | 41 | using ::android::hardware::keymaster::V3_0::KeyFormat; |
nagendra modadugu | ec66730 | 2017-12-04 21:37:22 -0800 | [diff] [blame^] | 42 | using ::android::hardware::keymaster::V4_0::SecurityLevel; |
| 43 | using ::android::hardware::keymaster::V4_0::Tag; |
nagendra modadugu | 284b939 | 2017-09-27 13:51:23 -0700 | [diff] [blame] | 44 | |
| 45 | // nos |
| 46 | using nos::NuggetClient; |
| 47 | |
| 48 | // Keymaster app |
nagendra modadugu | ec66730 | 2017-12-04 21:37:22 -0800 | [diff] [blame^] | 49 | // KM 3.0 types |
nagendra modadugu | 284b939 | 2017-09-27 13:51:23 -0700 | [diff] [blame] | 50 | using ::nugget::app::keymaster::AddRngEntropyRequest; |
| 51 | using ::nugget::app::keymaster::AddRngEntropyResponse; |
| 52 | using ::nugget::app::keymaster::GenerateKeyRequest; |
| 53 | using ::nugget::app::keymaster::GenerateKeyResponse; |
| 54 | using ::nugget::app::keymaster::GetKeyCharacteristicsRequest; |
| 55 | using ::nugget::app::keymaster::GetKeyCharacteristicsResponse; |
| 56 | using ::nugget::app::keymaster::ImportKeyRequest; |
| 57 | using ::nugget::app::keymaster::ImportKeyResponse; |
| 58 | using ::nugget::app::keymaster::ExportKeyRequest; |
| 59 | using ::nugget::app::keymaster::ExportKeyResponse; |
| 60 | using ::nugget::app::keymaster::AttestKeyRequest; |
| 61 | using ::nugget::app::keymaster::AttestKeyResponse; |
| 62 | using ::nugget::app::keymaster::UpgradeKeyRequest; |
| 63 | using ::nugget::app::keymaster::UpgradeKeyResponse; |
| 64 | using ::nugget::app::keymaster::DeleteKeyRequest; |
| 65 | using ::nugget::app::keymaster::DeleteKeyResponse; |
| 66 | using ::nugget::app::keymaster::DeleteAllKeysRequest; |
| 67 | using ::nugget::app::keymaster::DeleteAllKeysResponse; |
| 68 | using ::nugget::app::keymaster::DestroyAttestationIdsRequest; |
| 69 | using ::nugget::app::keymaster::DestroyAttestationIdsResponse; |
| 70 | using ::nugget::app::keymaster::BeginOperationRequest; |
| 71 | using ::nugget::app::keymaster::BeginOperationResponse; |
| 72 | using ::nugget::app::keymaster::UpdateOperationRequest; |
| 73 | using ::nugget::app::keymaster::UpdateOperationResponse; |
| 74 | using ::nugget::app::keymaster::FinishOperationRequest; |
| 75 | using ::nugget::app::keymaster::FinishOperationResponse; |
| 76 | using ::nugget::app::keymaster::AbortOperationRequest; |
| 77 | using ::nugget::app::keymaster::AbortOperationResponse; |
| 78 | |
nagendra modadugu | ec66730 | 2017-12-04 21:37:22 -0800 | [diff] [blame^] | 79 | // KM 4.0 types |
| 80 | using ::nugget::app::keymaster::ImportWrappedKeyRequest; |
| 81 | |
nagendra modadugu | 284b939 | 2017-09-27 13:51:23 -0700 | [diff] [blame] | 82 | static ErrorCode status_to_error_code(uint32_t status) |
| 83 | { |
| 84 | switch (status) { |
| 85 | case APP_SUCCESS: |
| 86 | return ErrorCode::OK; |
| 87 | break; |
| 88 | case APP_ERROR_BOGUS_ARGS: |
| 89 | return ErrorCode::INVALID_ARGUMENT; |
| 90 | break; |
| 91 | case APP_ERROR_INTERNAL: |
| 92 | return ErrorCode::UNKNOWN_ERROR; |
| 93 | break; |
| 94 | case APP_ERROR_TOO_MUCH: |
| 95 | return ErrorCode::INSUFFICIENT_BUFFER_SPACE; |
| 96 | break; |
| 97 | case APP_ERROR_RPC: |
| 98 | return ErrorCode::SECURE_HW_COMMUNICATION_FAILED; |
| 99 | break; |
| 100 | // TODO: app specific error codes go here. |
| 101 | default: |
| 102 | return ErrorCode::UNKNOWN_ERROR; |
| 103 | break; |
| 104 | } |
| 105 | } |
| 106 | |
Andrew Scull | dc620df | 2017-09-29 14:07:56 +0100 | [diff] [blame] | 107 | #define KM_CALL(meth) { \ |
| 108 | const uint32_t status = _keymaster. meth (request, &response); \ |
| 109 | if (status != APP_SUCCESS) { \ |
| 110 | LOG(ERROR) << #meth << " : request failed with status: " \ |
Andrew Scull | 8e96ff0 | 2017-10-09 11:09:09 +0100 | [diff] [blame] | 111 | << nos::StatusCodeString(status); \ |
Andrew Scull | dc620df | 2017-09-29 14:07:56 +0100 | [diff] [blame] | 112 | return status_to_error_code(status); \ |
| 113 | } \ |
| 114 | if ((ErrorCode)response.error_code() != ErrorCode::OK) { \ |
| 115 | LOG(ERROR) << #meth << " : device response error code: " \ |
| 116 | << response.error_code(); \ |
nagendra modadugu | ec66730 | 2017-12-04 21:37:22 -0800 | [diff] [blame^] | 117 | /* TODO: translate error codes. */ \ |
Andrew Scull | dc620df | 2017-09-29 14:07:56 +0100 | [diff] [blame] | 118 | return (ErrorCode)response.error_code(); \ |
| 119 | } \ |
nagendra modadugu | 284b939 | 2017-09-27 13:51:23 -0700 | [diff] [blame] | 120 | } |
| 121 | |
Andrew Scull | dc620df | 2017-09-29 14:07:56 +0100 | [diff] [blame] | 122 | #define KM_CALLV(meth, ...) { \ |
| 123 | const uint32_t status = _keymaster. meth (request, &response); \ |
| 124 | if (status != APP_SUCCESS) { \ |
| 125 | LOG(ERROR) << #meth << " : request failed with status: " \ |
Andrew Scull | 8e96ff0 | 2017-10-09 11:09:09 +0100 | [diff] [blame] | 126 | << nos::StatusCodeString(status); \ |
Andrew Scull | dc620df | 2017-09-29 14:07:56 +0100 | [diff] [blame] | 127 | _hidl_cb(status_to_error_code(status), __VA_ARGS__); \ |
| 128 | return Void(); \ |
| 129 | } \ |
| 130 | if ((ErrorCode)response.error_code() != ErrorCode::OK) { \ |
| 131 | LOG(ERROR) << #meth << " : device response error code: " \ |
| 132 | << response.error_code(); \ |
nagendra modadugu | ec66730 | 2017-12-04 21:37:22 -0800 | [diff] [blame^] | 133 | /* TODO: translate error codes. */ \ |
Andrew Scull | dc620df | 2017-09-29 14:07:56 +0100 | [diff] [blame] | 134 | _hidl_cb((ErrorCode)response.error_code(), __VA_ARGS__); \ |
| 135 | return Void(); \ |
| 136 | } \ |
nagendra modadugu | 284b939 | 2017-09-27 13:51:23 -0700 | [diff] [blame] | 137 | } |
Andrew Scull | e4e2ffc | 2017-08-10 10:03:20 +0100 | [diff] [blame] | 138 | |
| 139 | // Methods from ::android::hardware::keymaster::V3_0::IKeymasterDevice follow. |
nagendra modadugu | 284b939 | 2017-09-27 13:51:23 -0700 | [diff] [blame] | 140 | |
nagendra modadugu | ec66730 | 2017-12-04 21:37:22 -0800 | [diff] [blame^] | 141 | Return<void> KeymasterDevice::getHardwareInfo( |
| 142 | getHardwareInfo_cb _hidl_cb) |
nagendra modadugu | 284b939 | 2017-09-27 13:51:23 -0700 | [diff] [blame] | 143 | { |
nagendra modadugu | ec66730 | 2017-12-04 21:37:22 -0800 | [diff] [blame^] | 144 | LOG(VERBOSE) << "Running KeymasterDevice::getHardwareInfo"; |
Andrew Scull | e4e2ffc | 2017-08-10 10:03:20 +0100 | [diff] [blame] | 145 | |
nagendra modadugu | 8a88337 | 2017-09-18 22:29:00 -0700 | [diff] [blame] | 146 | (void)_keymaster; |
nagendra modadugu | ec66730 | 2017-12-04 21:37:22 -0800 | [diff] [blame^] | 147 | _hidl_cb(SecurityLevel::STRONGBOX, |
| 148 | string("CitadelKeymaster"), string("Google")); |
| 149 | |
| 150 | return Void(); |
| 151 | } |
| 152 | |
| 153 | Return<void> KeymasterDevice::getHmacSharingParameters( |
| 154 | getHmacSharingParameters_cb _hidl_cb) |
| 155 | { |
| 156 | LOG(VERBOSE) << "Running KeymasterDevice::getHmacSharingParameters"; |
| 157 | |
| 158 | (void)_keymaster; |
| 159 | _hidl_cb(ErrorCode::UNIMPLEMENTED, HmacSharingParameters()); |
| 160 | |
| 161 | return Void(); |
| 162 | } |
| 163 | |
| 164 | Return<void> KeymasterDevice::computeSharedHmac( |
| 165 | const hidl_vec<HmacSharingParameters>& params, |
| 166 | computeSharedHmac_cb _hidl_cb) |
| 167 | { |
| 168 | LOG(VERBOSE) << "Running KeymasterDevice::computeSharedHmac"; |
| 169 | |
| 170 | (void)params; |
| 171 | |
| 172 | (void)_keymaster; |
| 173 | _hidl_cb(ErrorCode::UNIMPLEMENTED, hidl_vec<uint8_t>{}); |
| 174 | |
| 175 | return Void(); |
| 176 | } |
| 177 | |
| 178 | Return<void> KeymasterDevice::verifyAuthorization( |
| 179 | uint64_t challenge, const hidl_vec<KeyParameter>& parametersToVerify, |
| 180 | const HardwareAuthToken& authToken, verifyAuthorization_cb _hidl_cb) |
| 181 | { |
| 182 | LOG(VERBOSE) << "Running KeymasterDevice::verifyAuthorization"; |
| 183 | |
| 184 | (void)challenge; |
| 185 | (void)parametersToVerify; |
| 186 | (void)authToken; |
| 187 | |
| 188 | (void)_keymaster; |
| 189 | _hidl_cb(ErrorCode::UNIMPLEMENTED, VerificationToken()); |
| 190 | |
Andrew Scull | e4e2ffc | 2017-08-10 10:03:20 +0100 | [diff] [blame] | 191 | return Void(); |
| 192 | } |
| 193 | |
nagendra modadugu | 284b939 | 2017-09-27 13:51:23 -0700 | [diff] [blame] | 194 | Return<ErrorCode> KeymasterDevice::addRngEntropy(const hidl_vec<uint8_t>& data) |
| 195 | { |
Andrew Scull | e4e2ffc | 2017-08-10 10:03:20 +0100 | [diff] [blame] | 196 | LOG(VERBOSE) << "Running KeymasterDevice::addRngEntropy"; |
| 197 | |
nagendra modadugu | 284b939 | 2017-09-27 13:51:23 -0700 | [diff] [blame] | 198 | if (!data.size()) return ErrorCode::OK; |
Andrew Scull | e4e2ffc | 2017-08-10 10:03:20 +0100 | [diff] [blame] | 199 | |
nagendra modadugu | 284b939 | 2017-09-27 13:51:23 -0700 | [diff] [blame] | 200 | AddRngEntropyRequest request; |
| 201 | AddRngEntropyResponse response; |
| 202 | request.set_data(&data[0], data.size()); |
| 203 | |
| 204 | // Call device. |
| 205 | KM_CALL(AddRngEntropy); |
| 206 | |
| 207 | return (ErrorCode)response.error_code(); |
Andrew Scull | e4e2ffc | 2017-08-10 10:03:20 +0100 | [diff] [blame] | 208 | } |
| 209 | |
nagendra modadugu | 284b939 | 2017-09-27 13:51:23 -0700 | [diff] [blame] | 210 | Return<void> KeymasterDevice::generateKey( |
| 211 | const hidl_vec<KeyParameter>& keyParams, |
| 212 | generateKey_cb _hidl_cb) |
| 213 | { |
Andrew Scull | e4e2ffc | 2017-08-10 10:03:20 +0100 | [diff] [blame] | 214 | LOG(VERBOSE) << "Running KeymasterDevice::generateKey"; |
| 215 | |
nagendra modadugu | 284b939 | 2017-09-27 13:51:23 -0700 | [diff] [blame] | 216 | GenerateKeyRequest request; |
| 217 | GenerateKeyResponse response; |
Andrew Scull | e4e2ffc | 2017-08-10 10:03:20 +0100 | [diff] [blame] | 218 | |
nagendra modadugu | e3ef469 | 2017-10-25 23:58:07 -0700 | [diff] [blame] | 219 | hidl_vec<uint8_t> blob; |
| 220 | KeyCharacteristics characteristics; |
| 221 | if (hidl_params_to_pb( |
| 222 | keyParams, request.mutable_params()) != ErrorCode::OK) { |
| 223 | _hidl_cb(ErrorCode::INVALID_ARGUMENT, blob, characteristics); |
| 224 | return Void(); |
| 225 | } |
nagendra modadugu | 284b939 | 2017-09-27 13:51:23 -0700 | [diff] [blame] | 226 | |
| 227 | // Call device. |
| 228 | KM_CALLV(GenerateKey, hidl_vec<uint8_t>{}, KeyCharacteristics()); |
| 229 | |
nagendra modadugu | 284b939 | 2017-09-27 13:51:23 -0700 | [diff] [blame] | 230 | blob.setToExternal( |
| 231 | reinterpret_cast<uint8_t*>( |
| 232 | const_cast<char*>(response.blob().blob().data())), |
| 233 | response.blob().blob().size(), false); |
nagendra modadugu | e3ef469 | 2017-10-25 23:58:07 -0700 | [diff] [blame] | 234 | pb_to_hidl_params(response.characteristics().software_enforced(), |
| 235 | &characteristics.softwareEnforced); |
nagendra modadugu | 284b939 | 2017-09-27 13:51:23 -0700 | [diff] [blame] | 236 | pb_to_hidl_params(response.characteristics().tee_enforced(), |
nagendra modadugu | ec66730 | 2017-12-04 21:37:22 -0800 | [diff] [blame^] | 237 | &characteristics.hardwareEnforced); |
nagendra modadugu | 284b939 | 2017-09-27 13:51:23 -0700 | [diff] [blame] | 238 | |
| 239 | _hidl_cb((ErrorCode)response.error_code(), blob, characteristics); |
Andrew Scull | e4e2ffc | 2017-08-10 10:03:20 +0100 | [diff] [blame] | 240 | return Void(); |
| 241 | } |
| 242 | |
nagendra modadugu | 284b939 | 2017-09-27 13:51:23 -0700 | [diff] [blame] | 243 | Return<void> KeymasterDevice::getKeyCharacteristics( |
| 244 | const hidl_vec<uint8_t>& keyBlob, |
| 245 | const hidl_vec<uint8_t>& clientId, |
| 246 | const hidl_vec<uint8_t>& appData, |
| 247 | getKeyCharacteristics_cb _hidl_cb) |
| 248 | { |
Andrew Scull | e4e2ffc | 2017-08-10 10:03:20 +0100 | [diff] [blame] | 249 | LOG(VERBOSE) << "Running KeymasterDevice::getKeyCharacteristics"; |
| 250 | |
nagendra modadugu | 284b939 | 2017-09-27 13:51:23 -0700 | [diff] [blame] | 251 | GetKeyCharacteristicsRequest request; |
| 252 | GetKeyCharacteristicsResponse response; |
Andrew Scull | e4e2ffc | 2017-08-10 10:03:20 +0100 | [diff] [blame] | 253 | |
nagendra modadugu | 284b939 | 2017-09-27 13:51:23 -0700 | [diff] [blame] | 254 | request.mutable_blob()->set_blob(&keyBlob[0], keyBlob.size()); |
| 255 | request.set_client_id(&clientId[0], clientId.size()); |
| 256 | request.set_app_data(&appData[0], appData.size()); |
| 257 | |
| 258 | // Call device. |
| 259 | KM_CALLV(GetKeyCharacteristics, KeyCharacteristics()); |
| 260 | |
| 261 | KeyCharacteristics characteristics; |
nagendra modadugu | e3ef469 | 2017-10-25 23:58:07 -0700 | [diff] [blame] | 262 | pb_to_hidl_params(response.characteristics().software_enforced(), |
| 263 | &characteristics.softwareEnforced); |
nagendra modadugu | 284b939 | 2017-09-27 13:51:23 -0700 | [diff] [blame] | 264 | pb_to_hidl_params(response.characteristics().tee_enforced(), |
nagendra modadugu | ec66730 | 2017-12-04 21:37:22 -0800 | [diff] [blame^] | 265 | &characteristics.hardwareEnforced); |
nagendra modadugu | 284b939 | 2017-09-27 13:51:23 -0700 | [diff] [blame] | 266 | |
| 267 | _hidl_cb((ErrorCode)response.error_code(), characteristics); |
Andrew Scull | e4e2ffc | 2017-08-10 10:03:20 +0100 | [diff] [blame] | 268 | return Void(); |
| 269 | } |
| 270 | |
nagendra modadugu | 284b939 | 2017-09-27 13:51:23 -0700 | [diff] [blame] | 271 | Return<void> KeymasterDevice::importKey( |
| 272 | const hidl_vec<KeyParameter>& params, KeyFormat keyFormat, |
| 273 | const hidl_vec<uint8_t>& keyData, importKey_cb _hidl_cb) |
| 274 | { |
Andrew Scull | e4e2ffc | 2017-08-10 10:03:20 +0100 | [diff] [blame] | 275 | LOG(VERBOSE) << "Running KeymasterDevice::importKey"; |
| 276 | |
nagendra modadugu | 9747140 | 2017-09-27 14:01:00 -0700 | [diff] [blame] | 277 | ErrorCode error; |
nagendra modadugu | 284b939 | 2017-09-27 13:51:23 -0700 | [diff] [blame] | 278 | ImportKeyRequest request; |
| 279 | ImportKeyResponse response; |
Andrew Scull | e4e2ffc | 2017-08-10 10:03:20 +0100 | [diff] [blame] | 280 | |
nagendra modadugu | 9747140 | 2017-09-27 14:01:00 -0700 | [diff] [blame] | 281 | error = import_key_request(params, keyFormat, keyData, &request); |
| 282 | if (error != ErrorCode::OK) { |
| 283 | LOG(ERROR) << "ImportKey request parsing failed with error " |
| 284 | << (uint32_t)error; |
| 285 | _hidl_cb(error, hidl_vec<uint8_t>{}, KeyCharacteristics{}); |
| 286 | return Void(); |
| 287 | } |
nagendra modadugu | 284b939 | 2017-09-27 13:51:23 -0700 | [diff] [blame] | 288 | |
| 289 | KM_CALLV(ImportKey, hidl_vec<uint8_t>{}, KeyCharacteristics{}); |
| 290 | |
| 291 | hidl_vec<uint8_t> blob; |
| 292 | blob.setToExternal( |
| 293 | reinterpret_cast<uint8_t*>( |
| 294 | const_cast<char*>(response.blob().blob().data())), |
| 295 | response.blob().blob().size(), false); |
| 296 | |
| 297 | KeyCharacteristics characteristics; |
nagendra modadugu | e3ef469 | 2017-10-25 23:58:07 -0700 | [diff] [blame] | 298 | pb_to_hidl_params(response.characteristics().software_enforced(), |
| 299 | &characteristics.softwareEnforced); |
nagendra modadugu | 9747140 | 2017-09-27 14:01:00 -0700 | [diff] [blame] | 300 | error = pb_to_hidl_params(response.characteristics().tee_enforced(), |
nagendra modadugu | ec66730 | 2017-12-04 21:37:22 -0800 | [diff] [blame^] | 301 | &characteristics.hardwareEnforced); |
nagendra modadugu | 9747140 | 2017-09-27 14:01:00 -0700 | [diff] [blame] | 302 | if (error != ErrorCode::OK) { |
| 303 | LOG(ERROR) << "KeymasterDevice::importKey: response tee_enforced :" |
| 304 | << (uint32_t)error; |
nagendra modadugu | ec66730 | 2017-12-04 21:37:22 -0800 | [diff] [blame^] | 305 | _hidl_cb(error, hidl_vec<uint8_t>{}, KeyCharacteristics{}); |
| 306 | return Void(); |
nagendra modadugu | 9747140 | 2017-09-27 14:01:00 -0700 | [diff] [blame] | 307 | } |
nagendra modadugu | 284b939 | 2017-09-27 13:51:23 -0700 | [diff] [blame] | 308 | |
| 309 | _hidl_cb(ErrorCode::OK, blob, characteristics); |
Andrew Scull | e4e2ffc | 2017-08-10 10:03:20 +0100 | [diff] [blame] | 310 | return Void(); |
| 311 | } |
| 312 | |
nagendra modadugu | 284b939 | 2017-09-27 13:51:23 -0700 | [diff] [blame] | 313 | Return<void> KeymasterDevice::exportKey( |
| 314 | KeyFormat exportFormat, const hidl_vec<uint8_t>& keyBlob, |
| 315 | const hidl_vec<uint8_t>& clientId, |
| 316 | const hidl_vec<uint8_t>& appData, exportKey_cb _hidl_cb) |
| 317 | { |
Andrew Scull | e4e2ffc | 2017-08-10 10:03:20 +0100 | [diff] [blame] | 318 | LOG(VERBOSE) << "Running KeymasterDevice::exportKey"; |
| 319 | |
nagendra modadugu | 284b939 | 2017-09-27 13:51:23 -0700 | [diff] [blame] | 320 | ExportKeyRequest request; |
| 321 | ExportKeyResponse response; |
Andrew Scull | e4e2ffc | 2017-08-10 10:03:20 +0100 | [diff] [blame] | 322 | |
nagendra modadugu | 284b939 | 2017-09-27 13:51:23 -0700 | [diff] [blame] | 323 | request.set_format((::nugget::app::keymaster::KeyFormat)exportFormat); |
| 324 | request.mutable_blob()->set_blob(&keyBlob[0], keyBlob.size()); |
| 325 | request.set_client_id(&clientId[0], clientId.size()); |
| 326 | request.set_app_data(&appData[0], appData.size()); |
| 327 | |
| 328 | KM_CALLV(ExportKey, hidl_vec<uint8_t>{}); |
| 329 | |
| 330 | hidl_vec<uint8_t> blob; |
| 331 | blob.setToExternal( |
| 332 | reinterpret_cast<uint8_t*>( |
| 333 | const_cast<char*>(response.key_material().data())), |
| 334 | response.key_material().size(), false); |
| 335 | |
| 336 | _hidl_cb((ErrorCode)response.error_code(), blob); |
Andrew Scull | e4e2ffc | 2017-08-10 10:03:20 +0100 | [diff] [blame] | 337 | return Void(); |
| 338 | } |
| 339 | |
nagendra modadugu | 284b939 | 2017-09-27 13:51:23 -0700 | [diff] [blame] | 340 | Return<void> KeymasterDevice::attestKey( |
| 341 | const hidl_vec<uint8_t>& keyToAttest, |
| 342 | const hidl_vec<KeyParameter>& attestParams, |
| 343 | attestKey_cb _hidl_cb) |
| 344 | { |
Andrew Scull | e4e2ffc | 2017-08-10 10:03:20 +0100 | [diff] [blame] | 345 | LOG(VERBOSE) << "Running KeymasterDevice::attestKey"; |
| 346 | |
nagendra modadugu | 284b939 | 2017-09-27 13:51:23 -0700 | [diff] [blame] | 347 | AttestKeyRequest request; |
| 348 | AttestKeyResponse response; |
Andrew Scull | e4e2ffc | 2017-08-10 10:03:20 +0100 | [diff] [blame] | 349 | |
nagendra modadugu | 284b939 | 2017-09-27 13:51:23 -0700 | [diff] [blame] | 350 | request.mutable_blob()->set_blob(&keyToAttest[0], keyToAttest.size()); |
nagendra modadugu | e3ef469 | 2017-10-25 23:58:07 -0700 | [diff] [blame] | 351 | |
| 352 | vector<hidl_vec<uint8_t> > chain; |
| 353 | if (hidl_params_to_pb( |
| 354 | attestParams, request.mutable_params()) != ErrorCode::OK) { |
| 355 | _hidl_cb(ErrorCode::INVALID_ARGUMENT, chain); |
| 356 | return Void(); |
| 357 | } |
nagendra modadugu | 284b939 | 2017-09-27 13:51:23 -0700 | [diff] [blame] | 358 | |
| 359 | KM_CALLV(AttestKey, hidl_vec<hidl_vec<uint8_t> >{}); |
| 360 | |
nagendra modadugu | 284b939 | 2017-09-27 13:51:23 -0700 | [diff] [blame] | 361 | for (int i = 0; i < response.chain().certificates_size(); i++) { |
| 362 | hidl_vec<uint8_t> blob; |
| 363 | blob.setToExternal( |
| 364 | reinterpret_cast<uint8_t*>( |
| 365 | const_cast<char*>( |
| 366 | response.chain().certificates(i).data().data())), |
| 367 | response.chain().certificates(i).data().size(), false); |
| 368 | chain.push_back(blob); |
| 369 | } |
| 370 | |
| 371 | _hidl_cb((ErrorCode)response.error_code(), |
| 372 | hidl_vec<hidl_vec<uint8_t> >(chain)); |
Andrew Scull | e4e2ffc | 2017-08-10 10:03:20 +0100 | [diff] [blame] | 373 | return Void(); |
| 374 | } |
| 375 | |
nagendra modadugu | 284b939 | 2017-09-27 13:51:23 -0700 | [diff] [blame] | 376 | Return<void> KeymasterDevice::upgradeKey( |
| 377 | const hidl_vec<uint8_t>& keyBlobToUpgrade, |
| 378 | const hidl_vec<KeyParameter>& upgradeParams, |
| 379 | upgradeKey_cb _hidl_cb) |
| 380 | { |
Andrew Scull | e4e2ffc | 2017-08-10 10:03:20 +0100 | [diff] [blame] | 381 | LOG(VERBOSE) << "Running KeymasterDevice::upgradeKey"; |
| 382 | |
nagendra modadugu | 284b939 | 2017-09-27 13:51:23 -0700 | [diff] [blame] | 383 | UpgradeKeyRequest request; |
| 384 | UpgradeKeyResponse response; |
Andrew Scull | e4e2ffc | 2017-08-10 10:03:20 +0100 | [diff] [blame] | 385 | |
nagendra modadugu | 284b939 | 2017-09-27 13:51:23 -0700 | [diff] [blame] | 386 | request.mutable_blob()->set_blob(&keyBlobToUpgrade[0], |
| 387 | keyBlobToUpgrade.size()); |
nagendra modadugu | e3ef469 | 2017-10-25 23:58:07 -0700 | [diff] [blame] | 388 | |
| 389 | hidl_vec<uint8_t> blob; |
| 390 | if (hidl_params_to_pb( |
| 391 | upgradeParams, request.mutable_params()) != ErrorCode::OK) { |
| 392 | _hidl_cb(ErrorCode::INVALID_ARGUMENT, blob); |
| 393 | return Void(); |
| 394 | } |
nagendra modadugu | 284b939 | 2017-09-27 13:51:23 -0700 | [diff] [blame] | 395 | |
| 396 | KM_CALLV(UpgradeKey, hidl_vec<uint8_t>{}); |
| 397 | |
nagendra modadugu | 284b939 | 2017-09-27 13:51:23 -0700 | [diff] [blame] | 398 | blob.setToExternal( |
| 399 | reinterpret_cast<uint8_t*>( |
| 400 | const_cast<char*>(response.blob().blob().data())), |
| 401 | response.blob().blob().size(), false); |
| 402 | |
| 403 | _hidl_cb((ErrorCode)response.error_code(), blob); |
Andrew Scull | e4e2ffc | 2017-08-10 10:03:20 +0100 | [diff] [blame] | 404 | return Void(); |
| 405 | } |
| 406 | |
nagendra modadugu | 284b939 | 2017-09-27 13:51:23 -0700 | [diff] [blame] | 407 | Return<ErrorCode> KeymasterDevice::deleteKey(const hidl_vec<uint8_t>& keyBlob) |
| 408 | { |
Andrew Scull | e4e2ffc | 2017-08-10 10:03:20 +0100 | [diff] [blame] | 409 | LOG(VERBOSE) << "Running KeymasterDevice::deleteKey"; |
| 410 | |
nagendra modadugu | 284b939 | 2017-09-27 13:51:23 -0700 | [diff] [blame] | 411 | DeleteKeyRequest request; |
| 412 | DeleteKeyResponse response; |
Andrew Scull | e4e2ffc | 2017-08-10 10:03:20 +0100 | [diff] [blame] | 413 | |
nagendra modadugu | 284b939 | 2017-09-27 13:51:23 -0700 | [diff] [blame] | 414 | request.mutable_blob()->set_blob(&keyBlob[0], keyBlob.size()); |
| 415 | |
| 416 | KM_CALL(DeleteKey); |
| 417 | |
| 418 | return (ErrorCode)response.error_code(); |
Andrew Scull | e4e2ffc | 2017-08-10 10:03:20 +0100 | [diff] [blame] | 419 | } |
| 420 | |
nagendra modadugu | 284b939 | 2017-09-27 13:51:23 -0700 | [diff] [blame] | 421 | Return<ErrorCode> KeymasterDevice::deleteAllKeys() |
| 422 | { |
Andrew Scull | e4e2ffc | 2017-08-10 10:03:20 +0100 | [diff] [blame] | 423 | LOG(VERBOSE) << "Running KeymasterDevice::deleteAllKeys"; |
| 424 | |
nagendra modadugu | 284b939 | 2017-09-27 13:51:23 -0700 | [diff] [blame] | 425 | DeleteAllKeysRequest request; |
| 426 | DeleteAllKeysResponse response; |
Andrew Scull | e4e2ffc | 2017-08-10 10:03:20 +0100 | [diff] [blame] | 427 | |
nagendra modadugu | 284b939 | 2017-09-27 13:51:23 -0700 | [diff] [blame] | 428 | KM_CALL(DeleteAllKeys); |
| 429 | |
| 430 | return (ErrorCode)response.error_code(); |
Andrew Scull | e4e2ffc | 2017-08-10 10:03:20 +0100 | [diff] [blame] | 431 | } |
| 432 | |
nagendra modadugu | 284b939 | 2017-09-27 13:51:23 -0700 | [diff] [blame] | 433 | Return<ErrorCode> KeymasterDevice::destroyAttestationIds() |
| 434 | { |
Andrew Scull | e4e2ffc | 2017-08-10 10:03:20 +0100 | [diff] [blame] | 435 | LOG(VERBOSE) << "Running KeymasterDevice::destroyAttestationIds"; |
| 436 | |
nagendra modadugu | 284b939 | 2017-09-27 13:51:23 -0700 | [diff] [blame] | 437 | DestroyAttestationIdsRequest request; |
| 438 | DestroyAttestationIdsResponse response; |
Andrew Scull | e4e2ffc | 2017-08-10 10:03:20 +0100 | [diff] [blame] | 439 | |
nagendra modadugu | 284b939 | 2017-09-27 13:51:23 -0700 | [diff] [blame] | 440 | KM_CALL(DestroyAttestationIds); |
| 441 | |
| 442 | return (ErrorCode)response.error_code(); |
Andrew Scull | e4e2ffc | 2017-08-10 10:03:20 +0100 | [diff] [blame] | 443 | } |
| 444 | |
nagendra modadugu | 284b939 | 2017-09-27 13:51:23 -0700 | [diff] [blame] | 445 | Return<void> KeymasterDevice::begin( |
| 446 | KeyPurpose purpose, const hidl_vec<uint8_t>& key, |
nagendra modadugu | ec66730 | 2017-12-04 21:37:22 -0800 | [diff] [blame^] | 447 | const hidl_vec<KeyParameter>& inParams, |
| 448 | const HardwareAuthToken& authToken, |
| 449 | begin_cb _hidl_cb) |
nagendra modadugu | 284b939 | 2017-09-27 13:51:23 -0700 | [diff] [blame] | 450 | { |
Andrew Scull | e4e2ffc | 2017-08-10 10:03:20 +0100 | [diff] [blame] | 451 | LOG(VERBOSE) << "Running KeymasterDevice::begin"; |
| 452 | |
nagendra modadugu | 284b939 | 2017-09-27 13:51:23 -0700 | [diff] [blame] | 453 | BeginOperationRequest request; |
| 454 | BeginOperationResponse response; |
Andrew Scull | e4e2ffc | 2017-08-10 10:03:20 +0100 | [diff] [blame] | 455 | |
nagendra modadugu | 284b939 | 2017-09-27 13:51:23 -0700 | [diff] [blame] | 456 | request.set_purpose((::nugget::app::keymaster::KeyPurpose)purpose); |
| 457 | request.mutable_blob()->set_blob(&key[0], key.size()); |
nagendra modadugu | ec66730 | 2017-12-04 21:37:22 -0800 | [diff] [blame^] | 458 | // TODO: set request.auth_token(). |
| 459 | (void)authToken; |
nagendra modadugu | e3ef469 | 2017-10-25 23:58:07 -0700 | [diff] [blame] | 460 | |
| 461 | hidl_vec<KeyParameter> params; |
| 462 | if (hidl_params_to_pb( |
| 463 | inParams, request.mutable_params()) != ErrorCode::OK) { |
| 464 | _hidl_cb(ErrorCode::INVALID_ARGUMENT, params, |
| 465 | response.handle().handle()); |
| 466 | return Void(); |
| 467 | } |
nagendra modadugu | 284b939 | 2017-09-27 13:51:23 -0700 | [diff] [blame] | 468 | |
| 469 | KM_CALLV(BeginOperation, hidl_vec<KeyParameter>{}, 0); |
| 470 | |
nagendra modadugu | 284b939 | 2017-09-27 13:51:23 -0700 | [diff] [blame] | 471 | pb_to_hidl_params(response.params(), ¶ms); |
| 472 | |
| 473 | _hidl_cb((ErrorCode)response.error_code(), params, |
| 474 | response.handle().handle()); |
Andrew Scull | e4e2ffc | 2017-08-10 10:03:20 +0100 | [diff] [blame] | 475 | return Void(); |
| 476 | } |
| 477 | |
nagendra modadugu | 284b939 | 2017-09-27 13:51:23 -0700 | [diff] [blame] | 478 | Return<void> KeymasterDevice::update( |
| 479 | uint64_t operationHandle, |
| 480 | const hidl_vec<KeyParameter>& inParams, |
nagendra modadugu | ec66730 | 2017-12-04 21:37:22 -0800 | [diff] [blame^] | 481 | const hidl_vec<uint8_t>& input, |
| 482 | const HardwareAuthToken& authToken, |
| 483 | const VerificationToken& verificationToken, |
| 484 | update_cb _hidl_cb) |
nagendra modadugu | 284b939 | 2017-09-27 13:51:23 -0700 | [diff] [blame] | 485 | { |
Andrew Scull | e4e2ffc | 2017-08-10 10:03:20 +0100 | [diff] [blame] | 486 | LOG(VERBOSE) << "Running KeymasterDevice::update"; |
| 487 | |
nagendra modadugu | 284b939 | 2017-09-27 13:51:23 -0700 | [diff] [blame] | 488 | UpdateOperationRequest request; |
| 489 | UpdateOperationResponse response; |
Andrew Scull | e4e2ffc | 2017-08-10 10:03:20 +0100 | [diff] [blame] | 490 | |
nagendra modadugu | 284b939 | 2017-09-27 13:51:23 -0700 | [diff] [blame] | 491 | request.mutable_handle()->set_handle(operationHandle); |
nagendra modadugu | e3ef469 | 2017-10-25 23:58:07 -0700 | [diff] [blame] | 492 | |
| 493 | hidl_vec<KeyParameter> params; |
| 494 | hidl_vec<uint8_t> output; |
| 495 | if (hidl_params_to_pb( |
| 496 | inParams, request.mutable_params()) != ErrorCode::OK) { |
| 497 | _hidl_cb(ErrorCode::INVALID_ARGUMENT, 0, params, output); |
| 498 | return Void(); |
| 499 | } |
| 500 | |
nagendra modadugu | 284b939 | 2017-09-27 13:51:23 -0700 | [diff] [blame] | 501 | request.set_input(&input[0], input.size()); |
nagendra modadugu | ec66730 | 2017-12-04 21:37:22 -0800 | [diff] [blame^] | 502 | // TODO: add authToken and verificationToken. |
| 503 | (void)authToken; |
| 504 | (void)verificationToken; |
nagendra modadugu | 284b939 | 2017-09-27 13:51:23 -0700 | [diff] [blame] | 505 | |
| 506 | KM_CALLV(UpdateOperation, 0, hidl_vec<KeyParameter>{}, hidl_vec<uint8_t>{}); |
| 507 | |
nagendra modadugu | 284b939 | 2017-09-27 13:51:23 -0700 | [diff] [blame] | 508 | pb_to_hidl_params(response.params(), ¶ms); |
| 509 | output.setToExternal( |
| 510 | reinterpret_cast<uint8_t*>(const_cast<char*>(response.output().data())), |
| 511 | response.output().size(), false); |
| 512 | |
| 513 | _hidl_cb(ErrorCode::OK, response.consumed(), params, output); |
Andrew Scull | e4e2ffc | 2017-08-10 10:03:20 +0100 | [diff] [blame] | 514 | return Void(); |
| 515 | } |
| 516 | |
nagendra modadugu | 284b939 | 2017-09-27 13:51:23 -0700 | [diff] [blame] | 517 | Return<void> KeymasterDevice::finish( |
| 518 | uint64_t operationHandle, |
| 519 | const hidl_vec<KeyParameter>& inParams, |
| 520 | const hidl_vec<uint8_t>& input, |
nagendra modadugu | ec66730 | 2017-12-04 21:37:22 -0800 | [diff] [blame^] | 521 | const hidl_vec<uint8_t>& signature, |
| 522 | const HardwareAuthToken& authToken, |
| 523 | const VerificationToken& verificationToken, |
| 524 | finish_cb _hidl_cb) |
nagendra modadugu | 284b939 | 2017-09-27 13:51:23 -0700 | [diff] [blame] | 525 | { |
Andrew Scull | e4e2ffc | 2017-08-10 10:03:20 +0100 | [diff] [blame] | 526 | LOG(VERBOSE) << "Running KeymasterDevice::finish"; |
| 527 | |
nagendra modadugu | 284b939 | 2017-09-27 13:51:23 -0700 | [diff] [blame] | 528 | FinishOperationRequest request; |
| 529 | FinishOperationResponse response; |
Andrew Scull | e4e2ffc | 2017-08-10 10:03:20 +0100 | [diff] [blame] | 530 | |
nagendra modadugu | 284b939 | 2017-09-27 13:51:23 -0700 | [diff] [blame] | 531 | request.mutable_handle()->set_handle(operationHandle); |
nagendra modadugu | e3ef469 | 2017-10-25 23:58:07 -0700 | [diff] [blame] | 532 | |
| 533 | hidl_vec<KeyParameter> params; |
| 534 | hidl_vec<uint8_t> output; |
| 535 | if (hidl_params_to_pb( |
| 536 | inParams, request.mutable_params()) != ErrorCode::OK) { |
| 537 | _hidl_cb(ErrorCode::INVALID_ARGUMENT, params, output); |
| 538 | return Void(); |
| 539 | } |
| 540 | |
nagendra modadugu | 284b939 | 2017-09-27 13:51:23 -0700 | [diff] [blame] | 541 | request.set_input(&input[0], input.size()); |
| 542 | request.set_signature(&signature[0], signature.size()); |
| 543 | |
nagendra modadugu | ec66730 | 2017-12-04 21:37:22 -0800 | [diff] [blame^] | 544 | // TODO: add authToken and verificationToken. |
| 545 | (void)authToken; |
| 546 | (void)verificationToken; |
| 547 | |
nagendra modadugu | 284b939 | 2017-09-27 13:51:23 -0700 | [diff] [blame] | 548 | KM_CALLV(FinishOperation, hidl_vec<KeyParameter>{}, hidl_vec<uint8_t>{}); |
| 549 | |
nagendra modadugu | 284b939 | 2017-09-27 13:51:23 -0700 | [diff] [blame] | 550 | pb_to_hidl_params(response.params(), ¶ms); |
nagendra modadugu | 284b939 | 2017-09-27 13:51:23 -0700 | [diff] [blame] | 551 | output.setToExternal( |
| 552 | reinterpret_cast<uint8_t*>(const_cast<char*>(response.output().data())), |
| 553 | response.output().size(), false); |
| 554 | |
| 555 | _hidl_cb(ErrorCode::OK, params, output); |
Andrew Scull | e4e2ffc | 2017-08-10 10:03:20 +0100 | [diff] [blame] | 556 | return Void(); |
| 557 | } |
| 558 | |
nagendra modadugu | 284b939 | 2017-09-27 13:51:23 -0700 | [diff] [blame] | 559 | Return<ErrorCode> KeymasterDevice::abort(uint64_t operationHandle) |
| 560 | { |
Andrew Scull | e4e2ffc | 2017-08-10 10:03:20 +0100 | [diff] [blame] | 561 | LOG(VERBOSE) << "Running KeymasterDevice::abort"; |
| 562 | |
nagendra modadugu | 284b939 | 2017-09-27 13:51:23 -0700 | [diff] [blame] | 563 | AbortOperationRequest request; |
| 564 | AbortOperationResponse response; |
Andrew Scull | e4e2ffc | 2017-08-10 10:03:20 +0100 | [diff] [blame] | 565 | |
nagendra modadugu | 284b939 | 2017-09-27 13:51:23 -0700 | [diff] [blame] | 566 | request.mutable_handle()->set_handle(operationHandle); |
| 567 | |
| 568 | KM_CALL(AbortOperation); |
| 569 | |
| 570 | return ErrorCode::OK; |
Andrew Scull | e4e2ffc | 2017-08-10 10:03:20 +0100 | [diff] [blame] | 571 | } |
| 572 | |
nagendra modadugu | ec66730 | 2017-12-04 21:37:22 -0800 | [diff] [blame^] | 573 | // Methods from ::android::hardware::keymaster::V4_0::IKeymasterDevice follow. |
| 574 | Return<void> KeymasterDevice::importWrappedKey( |
| 575 | const hidl_vec<uint8_t>& wrappedKeyData, |
| 576 | const hidl_vec<uint8_t>& wrappingKeyBlob, |
| 577 | const hidl_vec<uint8_t>& maskingKey, |
| 578 | importWrappedKey_cb _hidl_cb) |
| 579 | { |
| 580 | LOG(VERBOSE) << "Running KeymasterDevice::importWrappedKey"; |
| 581 | |
| 582 | ErrorCode error; |
| 583 | ImportWrappedKeyRequest request; |
| 584 | ImportKeyResponse response; |
| 585 | |
| 586 | if (maskingKey.size() != KM_WRAPPER_MASKING_KEY_SIZE) { |
| 587 | _hidl_cb(ErrorCode::INVALID_ARGUMENT, hidl_vec<uint8_t>{}, |
| 588 | KeyCharacteristics{}); |
| 589 | return Void(); |
| 590 | } |
| 591 | |
| 592 | error = import_wrapped_key_request(wrappedKeyData, wrappingKeyBlob, |
| 593 | maskingKey, &request); |
| 594 | if (error != ErrorCode::OK) { |
| 595 | LOG(ERROR) << "ImportWrappedKey request parsing failed with error " |
| 596 | << (uint32_t)error; |
| 597 | _hidl_cb(error, hidl_vec<uint8_t>{}, KeyCharacteristics{}); |
| 598 | return Void(); |
| 599 | } |
| 600 | |
| 601 | KM_CALLV(ImportWrappedKey, hidl_vec<uint8_t>{}, KeyCharacteristics{}); |
| 602 | |
| 603 | hidl_vec<uint8_t> blob; |
| 604 | blob.setToExternal( |
| 605 | reinterpret_cast<uint8_t*>( |
| 606 | const_cast<char*>(response.blob().blob().data())), |
| 607 | response.blob().blob().size(), false); |
| 608 | |
| 609 | KeyCharacteristics characteristics; |
| 610 | // TODO: anything to do here with softwareEnforced? |
| 611 | pb_to_hidl_params(response.characteristics().software_enforced(), |
| 612 | &characteristics.softwareEnforced); |
| 613 | error = pb_to_hidl_params(response.characteristics().tee_enforced(), |
| 614 | &characteristics.hardwareEnforced); |
| 615 | if (error != ErrorCode::OK) { |
| 616 | LOG(ERROR) << |
| 617 | "KeymasterDevice::importWrappedKey: response tee_enforced :" |
| 618 | << (uint32_t)error; |
| 619 | _hidl_cb(error, hidl_vec<uint8_t>{}, KeyCharacteristics{}); |
| 620 | return Void(); |
| 621 | } |
| 622 | |
| 623 | _hidl_cb(ErrorCode::OK, blob, characteristics); |
| 624 | return Void(); |
| 625 | } |
| 626 | |
Andrew Scull | e4e2ffc | 2017-08-10 10:03:20 +0100 | [diff] [blame] | 627 | } // namespace keymaster |
| 628 | } // namespace hardware |
| 629 | } // namespace android |