1 /* 2 ** 3 ** Copyright 2008, 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 <stdint.h> 19 #include <sys/types.h> 20 21 #define LOG_TAG "KeystoreService" 22 #include <utils/Log.h> 23 24 #include <binder/Parcel.h> 25 #include <binder/IPCThreadState.h> 26 #include <binder/IServiceManager.h> 27 28 #include <keystore/IKeystoreService.h> 29 30 namespace android { 31 32 KeystoreArg::KeystoreArg(const void* data, size_t len) 33 : mData(data), mSize(len) { 34 } 35 36 KeystoreArg::~KeystoreArg() { 37 } 38 39 const void *KeystoreArg::data() const { 40 return mData; 41 } 42 43 size_t KeystoreArg::size() const { 44 return mSize; 45 } 46 47 class BpKeystoreService: public BpInterface<IKeystoreService> 48 { 49 public: 50 BpKeystoreService(const sp<IBinder>& impl) 51 : BpInterface<IKeystoreService>(impl) 52 { 53 } 54 55 // test ping 56 virtual int32_t test() 57 { 58 Parcel data, reply; 59 data.writeInterfaceToken(IKeystoreService::getInterfaceDescriptor()); 60 status_t status = remote()->transact(BnKeystoreService::TEST, data, &reply); 61 if (status != NO_ERROR) { 62 ALOGD("test() could not contact remote: %d\n", status); 63 return -1; 64 } 65 int32_t err = reply.readExceptionCode(); 66 int32_t ret = reply.readInt32(); 67 if (err < 0) { 68 ALOGD("test() caught exception %d\n", err); 69 return -1; 70 } 71 return ret; 72 } 73 74 virtual int32_t get(const String16& name, uint8_t** item, size_t* itemLength) 75 { 76 Parcel data, reply; 77 data.writeInterfaceToken(IKeystoreService::getInterfaceDescriptor()); 78 data.writeString16(name); 79 status_t status = remote()->transact(BnKeystoreService::GET, data, &reply); 80 if (status != NO_ERROR) { 81 ALOGD("get() could not contact remote: %d\n", status); 82 return -1; 83 } 84 int32_t err = reply.readExceptionCode(); 85 ssize_t len = reply.readInt32(); 86 if (len >= 0 && (size_t) len <= reply.dataAvail()) { 87 size_t ulen = (size_t) len; 88 const void* buf = reply.readInplace(ulen); 89 *item = (uint8_t*) malloc(ulen); 90 if (*item != NULL) { 91 memcpy(*item, buf, ulen); 92 *itemLength = ulen; 93 } else { 94 ALOGE("out of memory allocating output array in get"); 95 *itemLength = 0; 96 } 97 } else { 98 *itemLength = 0; 99 } 100 if (err < 0) { 101 ALOGD("get() caught exception %d\n", err); 102 return -1; 103 } 104 return 0; 105 } 106 107 virtual int32_t insert(const String16& name, const uint8_t* item, size_t itemLength, int uid, 108 int32_t flags) 109 { 110 Parcel data, reply; 111 data.writeInterfaceToken(IKeystoreService::getInterfaceDescriptor()); 112 data.writeString16(name); 113 data.writeInt32(itemLength); 114 void* buf = data.writeInplace(itemLength); 115 memcpy(buf, item, itemLength); 116 data.writeInt32(uid); 117 data.writeInt32(flags); 118 status_t status = remote()->transact(BnKeystoreService::INSERT, data, &reply); 119 if (status != NO_ERROR) { 120 ALOGD("import() could not contact remote: %d\n", status); 121 return -1; 122 } 123 int32_t err = reply.readExceptionCode(); 124 int32_t ret = reply.readInt32(); 125 if (err < 0) { 126 ALOGD("import() caught exception %d\n", err); 127 return -1; 128 } 129 return ret; 130 } 131 132 virtual int32_t del(const String16& name, int uid) 133 { 134 Parcel data, reply; 135 data.writeInterfaceToken(IKeystoreService::getInterfaceDescriptor()); 136 data.writeString16(name); 137 data.writeInt32(uid); 138 status_t status = remote()->transact(BnKeystoreService::DEL, data, &reply); 139 if (status != NO_ERROR) { 140 ALOGD("del() could not contact remote: %d\n", status); 141 return -1; 142 } 143 int32_t err = reply.readExceptionCode(); 144 int32_t ret = reply.readInt32(); 145 if (err < 0) { 146 ALOGD("del() caught exception %d\n", err); 147 return -1; 148 } 149 return ret; 150 } 151 152 virtual int32_t exist(const String16& name, int uid) 153 { 154 Parcel data, reply; 155 data.writeInterfaceToken(IKeystoreService::getInterfaceDescriptor()); 156 data.writeString16(name); 157 data.writeInt32(uid); 158 status_t status = remote()->transact(BnKeystoreService::EXIST, data, &reply); 159 if (status != NO_ERROR) { 160 ALOGD("exist() could not contact remote: %d\n", status); 161 return -1; 162 } 163 int32_t err = reply.readExceptionCode(); 164 int32_t ret = reply.readInt32(); 165 if (err < 0) { 166 ALOGD("exist() caught exception %d\n", err); 167 return -1; 168 } 169 return ret; 170 } 171 172 virtual int32_t saw(const String16& name, int uid, Vector<String16>* matches) 173 { 174 Parcel data, reply; 175 data.writeInterfaceToken(IKeystoreService::getInterfaceDescriptor()); 176 data.writeString16(name); 177 data.writeInt32(uid); 178 status_t status = remote()->transact(BnKeystoreService::SAW, data, &reply); 179 if (status != NO_ERROR) { 180 ALOGD("saw() could not contact remote: %d\n", status); 181 return -1; 182 } 183 int32_t err = reply.readExceptionCode(); 184 int32_t numMatches = reply.readInt32(); 185 for (int32_t i = 0; i < numMatches; i++) { 186 matches->push(reply.readString16()); 187 } 188 int32_t ret = reply.readInt32(); 189 if (err < 0) { 190 ALOGD("saw() caught exception %d\n", err); 191 return -1; 192 } 193 return ret; 194 } 195 196 virtual int32_t reset() 197 { 198 Parcel data, reply; 199 data.writeInterfaceToken(IKeystoreService::getInterfaceDescriptor()); 200 status_t status = remote()->transact(BnKeystoreService::RESET, data, &reply); 201 if (status != NO_ERROR) { 202 ALOGD("reset() could not contact remote: %d\n", status); 203 return -1; 204 } 205 int32_t err = reply.readExceptionCode(); 206 int32_t ret = reply.readInt32(); 207 if (err < 0) { 208 ALOGD("reset() caught exception %d\n", err); 209 return -1; 210 } 211 return ret; 212 } 213 214 virtual int32_t password(const String16& password) 215 { 216 Parcel data, reply; 217 data.writeInterfaceToken(IKeystoreService::getInterfaceDescriptor()); 218 data.writeString16(password); 219 status_t status = remote()->transact(BnKeystoreService::PASSWORD, data, &reply); 220 if (status != NO_ERROR) { 221 ALOGD("password() could not contact remote: %d\n", status); 222 return -1; 223 } 224 int32_t err = reply.readExceptionCode(); 225 int32_t ret = reply.readInt32(); 226 if (err < 0) { 227 ALOGD("password() caught exception %d\n", err); 228 return -1; 229 } 230 return ret; 231 } 232 233 virtual int32_t lock() 234 { 235 Parcel data, reply; 236 data.writeInterfaceToken(IKeystoreService::getInterfaceDescriptor()); 237 status_t status = remote()->transact(BnKeystoreService::LOCK, data, &reply); 238 if (status != NO_ERROR) { 239 ALOGD("lock() could not contact remote: %d\n", status); 240 return -1; 241 } 242 int32_t err = reply.readExceptionCode(); 243 int32_t ret = reply.readInt32(); 244 if (err < 0) { 245 ALOGD("lock() caught exception %d\n", err); 246 return -1; 247 } 248 return ret; 249 } 250 251 virtual int32_t unlock(const String16& password) 252 { 253 Parcel data, reply; 254 data.writeInterfaceToken(IKeystoreService::getInterfaceDescriptor()); 255 data.writeString16(password); 256 status_t status = remote()->transact(BnKeystoreService::UNLOCK, data, &reply); 257 if (status != NO_ERROR) { 258 ALOGD("unlock() could not contact remote: %d\n", status); 259 return -1; 260 } 261 int32_t err = reply.readExceptionCode(); 262 int32_t ret = reply.readInt32(); 263 if (err < 0) { 264 ALOGD("unlock() caught exception %d\n", err); 265 return -1; 266 } 267 return ret; 268 } 269 270 virtual int32_t zero() 271 { 272 Parcel data, reply; 273 data.writeInterfaceToken(IKeystoreService::getInterfaceDescriptor()); 274 status_t status = remote()->transact(BnKeystoreService::ZERO, data, &reply); 275 if (status != NO_ERROR) { 276 ALOGD("zero() could not contact remote: %d\n", status); 277 return -1; 278 } 279 int32_t err = reply.readExceptionCode(); 280 int32_t ret = reply.readInt32(); 281 if (err < 0) { 282 ALOGD("zero() caught exception %d\n", err); 283 return -1; 284 } 285 return ret; 286 } 287 288 virtual int32_t generate(const String16& name, int32_t uid, int32_t keyType, int32_t keySize, 289 int32_t flags, Vector<sp<KeystoreArg> >* args) 290 { 291 Parcel data, reply; 292 data.writeInterfaceToken(IKeystoreService::getInterfaceDescriptor()); 293 data.writeString16(name); 294 data.writeInt32(uid); 295 data.writeInt32(keyType); 296 data.writeInt32(keySize); 297 data.writeInt32(flags); 298 data.writeInt32(args->size()); 299 for (Vector<sp<KeystoreArg> >::iterator it = args->begin(); it != args->end(); ++it) { 300 sp<KeystoreArg> item = *it; 301 size_t keyLength = item->size(); 302 data.writeInt32(keyLength); 303 void* buf = data.writeInplace(keyLength); 304 memcpy(buf, item->data(), keyLength); 305 } 306 status_t status = remote()->transact(BnKeystoreService::GENERATE, data, &reply); 307 if (status != NO_ERROR) { 308 ALOGD("generate() could not contact remote: %d\n", status); 309 return -1; 310 } 311 int32_t err = reply.readExceptionCode(); 312 int32_t ret = reply.readInt32(); 313 if (err < 0) { 314 ALOGD("generate() caught exception %d\n", err); 315 return -1; 316 } 317 return ret; 318 } 319 320 virtual int32_t import(const String16& name, const uint8_t* key, size_t keyLength, int uid, 321 int flags) 322 { 323 Parcel data, reply; 324 data.writeInterfaceToken(IKeystoreService::getInterfaceDescriptor()); 325 data.writeString16(name); 326 data.writeInt32(keyLength); 327 void* buf = data.writeInplace(keyLength); 328 memcpy(buf, key, keyLength); 329 data.writeInt32(uid); 330 data.writeInt32(flags); 331 status_t status = remote()->transact(BnKeystoreService::IMPORT, data, &reply); 332 if (status != NO_ERROR) { 333 ALOGD("import() could not contact remote: %d\n", status); 334 return -1; 335 } 336 int32_t err = reply.readExceptionCode(); 337 int32_t ret = reply.readInt32(); 338 if (err < 0) { 339 ALOGD("import() caught exception %d\n", err); 340 return -1; 341 } 342 return ret; 343 } 344 345 virtual int32_t sign(const String16& name, const uint8_t* in, size_t inLength, uint8_t** out, 346 size_t* outLength) 347 { 348 Parcel data, reply; 349 data.writeInterfaceToken(IKeystoreService::getInterfaceDescriptor()); 350 data.writeString16(name); 351 data.writeInt32(inLength); 352 void* buf = data.writeInplace(inLength); 353 memcpy(buf, in, inLength); 354 status_t status = remote()->transact(BnKeystoreService::SIGN, data, &reply); 355 if (status != NO_ERROR) { 356 ALOGD("import() could not contact remote: %d\n", status); 357 return -1; 358 } 359 int32_t err = reply.readExceptionCode(); 360 ssize_t len = reply.readInt32(); 361 if (len >= 0 && (size_t) len <= reply.dataAvail()) { 362 size_t ulen = (size_t) len; 363 const void* outBuf = reply.readInplace(ulen); 364 *out = (uint8_t*) malloc(ulen); 365 if (*out != NULL) { 366 memcpy((void*) *out, outBuf, ulen); 367 *outLength = ulen; 368 } else { 369 ALOGE("out of memory allocating output array in sign"); 370 *outLength = 0; 371 } 372 } else { 373 *outLength = 0; 374 } 375 if (err < 0) { 376 ALOGD("import() caught exception %d\n", err); 377 return -1; 378 } 379 return 0; 380 } 381 382 virtual int32_t verify(const String16& name, const uint8_t* in, size_t inLength, 383 const uint8_t* signature, size_t signatureLength) 384 { 385 Parcel data, reply; 386 void* buf; 387 388 data.writeInterfaceToken(IKeystoreService::getInterfaceDescriptor()); 389 data.writeString16(name); 390 data.writeInt32(inLength); 391 buf = data.writeInplace(inLength); 392 memcpy(buf, in, inLength); 393 data.writeInt32(signatureLength); 394 buf = data.writeInplace(signatureLength); 395 memcpy(buf, signature, signatureLength); 396 status_t status = remote()->transact(BnKeystoreService::VERIFY, data, &reply); 397 if (status != NO_ERROR) { 398 ALOGD("verify() could not contact remote: %d\n", status); 399 return -1; 400 } 401 int32_t err = reply.readExceptionCode(); 402 int32_t ret = reply.readInt32(); 403 if (err < 0) { 404 ALOGD("verify() caught exception %d\n", err); 405 return -1; 406 } 407 return ret; 408 } 409 410 virtual int32_t get_pubkey(const String16& name, uint8_t** pubkey, size_t* pubkeyLength) 411 { 412 Parcel data, reply; 413 data.writeInterfaceToken(IKeystoreService::getInterfaceDescriptor()); 414 data.writeString16(name); 415 status_t status = remote()->transact(BnKeystoreService::GET_PUBKEY, data, &reply); 416 if (status != NO_ERROR) { 417 ALOGD("get_pubkey() could not contact remote: %d\n", status); 418 return -1; 419 } 420 int32_t err = reply.readExceptionCode(); 421 ssize_t len = reply.readInt32(); 422 if (len >= 0 && (size_t) len <= reply.dataAvail()) { 423 size_t ulen = (size_t) len; 424 const void* buf = reply.readInplace(ulen); 425 *pubkey = (uint8_t*) malloc(ulen); 426 if (*pubkey != NULL) { 427 memcpy(*pubkey, buf, ulen); 428 *pubkeyLength = ulen; 429 } else { 430 ALOGE("out of memory allocating output array in get_pubkey"); 431 *pubkeyLength = 0; 432 } 433 } else { 434 *pubkeyLength = 0; 435 } 436 if (err < 0) { 437 ALOGD("get_pubkey() caught exception %d\n", err); 438 return -1; 439 } 440 return 0; 441 } 442 443 virtual int32_t del_key(const String16& name, int uid) 444 { 445 Parcel data, reply; 446 data.writeInterfaceToken(IKeystoreService::getInterfaceDescriptor()); 447 data.writeString16(name); 448 data.writeInt32(uid); 449 status_t status = remote()->transact(BnKeystoreService::DEL_KEY, data, &reply); 450 if (status != NO_ERROR) { 451 ALOGD("del_key() could not contact remote: %d\n", status); 452 return -1; 453 } 454 int32_t err = reply.readExceptionCode(); 455 int32_t ret = reply.readInt32(); 456 if (err < 0) { 457 ALOGD("del_key() caught exception %d\n", err); 458 return -1; 459 } 460 return ret; 461 } 462 463 virtual int32_t grant(const String16& name, int32_t granteeUid) 464 { 465 Parcel data, reply; 466 data.writeInterfaceToken(IKeystoreService::getInterfaceDescriptor()); 467 data.writeString16(name); 468 data.writeInt32(granteeUid); 469 status_t status = remote()->transact(BnKeystoreService::GRANT, data, &reply); 470 if (status != NO_ERROR) { 471 ALOGD("grant() could not contact remote: %d\n", status); 472 return -1; 473 } 474 int32_t err = reply.readExceptionCode(); 475 int32_t ret = reply.readInt32(); 476 if (err < 0) { 477 ALOGD("grant() caught exception %d\n", err); 478 return -1; 479 } 480 return ret; 481 } 482 483 virtual int32_t ungrant(const String16& name, int32_t granteeUid) 484 { 485 Parcel data, reply; 486 data.writeInterfaceToken(IKeystoreService::getInterfaceDescriptor()); 487 data.writeString16(name); 488 data.writeInt32(granteeUid); 489 status_t status = remote()->transact(BnKeystoreService::UNGRANT, data, &reply); 490 if (status != NO_ERROR) { 491 ALOGD("ungrant() could not contact remote: %d\n", status); 492 return -1; 493 } 494 int32_t err = reply.readExceptionCode(); 495 int32_t ret = reply.readInt32(); 496 if (err < 0) { 497 ALOGD("ungrant() caught exception %d\n", err); 498 return -1; 499 } 500 return ret; 501 } 502 503 int64_t getmtime(const String16& name) 504 { 505 Parcel data, reply; 506 data.writeInterfaceToken(IKeystoreService::getInterfaceDescriptor()); 507 data.writeString16(name); 508 status_t status = remote()->transact(BnKeystoreService::GETMTIME, data, &reply); 509 if (status != NO_ERROR) { 510 ALOGD("getmtime() could not contact remote: %d\n", status); 511 return -1; 512 } 513 int32_t err = reply.readExceptionCode(); 514 int64_t ret = reply.readInt64(); 515 if (err < 0) { 516 ALOGD("getmtime() caught exception %d\n", err); 517 return -1; 518 } 519 return ret; 520 } 521 522 virtual int32_t duplicate(const String16& srcKey, int32_t srcUid, const String16& destKey, 523 int32_t destUid) 524 { 525 Parcel data, reply; 526 data.writeInterfaceToken(IKeystoreService::getInterfaceDescriptor()); 527 data.writeString16(srcKey); 528 data.writeInt32(srcUid); 529 data.writeString16(destKey); 530 data.writeInt32(destUid); 531 status_t status = remote()->transact(BnKeystoreService::DUPLICATE, data, &reply); 532 if (status != NO_ERROR) { 533 ALOGD("duplicate() could not contact remote: %d\n", status); 534 return -1; 535 } 536 int32_t err = reply.readExceptionCode(); 537 int32_t ret = reply.readInt32(); 538 if (err < 0) { 539 ALOGD("duplicate() caught exception %d\n", err); 540 return -1; 541 } 542 return ret; 543 } 544 545 virtual int32_t is_hardware_backed(const String16& keyType) 546 { 547 Parcel data, reply; 548 data.writeInterfaceToken(IKeystoreService::getInterfaceDescriptor()); 549 data.writeString16(keyType); 550 status_t status = remote()->transact(BnKeystoreService::IS_HARDWARE_BACKED, data, &reply); 551 if (status != NO_ERROR) { 552 ALOGD("is_hardware_backed() could not contact remote: %d\n", status); 553 return -1; 554 } 555 int32_t err = reply.readExceptionCode(); 556 int32_t ret = reply.readInt32(); 557 if (err < 0) { 558 ALOGD("is_hardware_backed() caught exception %d\n", err); 559 return -1; 560 } 561 return ret; 562 } 563 564 virtual int32_t clear_uid(int64_t uid) 565 { 566 Parcel data, reply; 567 data.writeInterfaceToken(IKeystoreService::getInterfaceDescriptor()); 568 data.writeInt64(uid); 569 status_t status = remote()->transact(BnKeystoreService::CLEAR_UID, data, &reply); 570 if (status != NO_ERROR) { 571 ALOGD("clear_uid() could not contact remote: %d\n", status); 572 return -1; 573 } 574 int32_t err = reply.readExceptionCode(); 575 int32_t ret = reply.readInt32(); 576 if (err < 0) { 577 ALOGD("clear_uid() caught exception %d\n", err); 578 return -1; 579 } 580 return ret; 581 } 582 }; 583 584 IMPLEMENT_META_INTERFACE(KeystoreService, "android.security.keystore"); 585 586 // ---------------------------------------------------------------------- 587 588 status_t BnKeystoreService::onTransact( 589 uint32_t code, const Parcel& data, Parcel* reply, uint32_t flags) 590 { 591 switch(code) { 592 case TEST: { 593 CHECK_INTERFACE(IKeystoreService, data, reply); 594 int32_t ret = test(); 595 reply->writeNoException(); 596 reply->writeInt32(ret); 597 return NO_ERROR; 598 } break; 599 case GET: { 600 CHECK_INTERFACE(IKeystoreService, data, reply); 601 String16 name = data.readString16(); 602 void* out = NULL; 603 size_t outSize = 0; 604 int32_t ret = get(name, (uint8_t**) &out, &outSize); 605 reply->writeNoException(); 606 if (ret == 1) { 607 reply->writeInt32(outSize); 608 void* buf = reply->writeInplace(outSize); 609 memcpy(buf, out, outSize); 610 free(out); 611 } else { 612 reply->writeInt32(-1); 613 } 614 return NO_ERROR; 615 } break; 616 case INSERT: { 617 CHECK_INTERFACE(IKeystoreService, data, reply); 618 String16 name = data.readString16(); 619 ssize_t inSize = data.readInt32(); 620 const void* in; 621 if (inSize >= 0 && (size_t) inSize <= data.dataAvail()) { 622 in = data.readInplace(inSize); 623 } else { 624 in = NULL; 625 inSize = 0; 626 } 627 int uid = data.readInt32(); 628 int32_t flags = data.readInt32(); 629 int32_t ret = insert(name, (const uint8_t*) in, (size_t) inSize, uid, flags); 630 reply->writeNoException(); 631 reply->writeInt32(ret); 632 return NO_ERROR; 633 } break; 634 case DEL: { 635 CHECK_INTERFACE(IKeystoreService, data, reply); 636 String16 name = data.readString16(); 637 int uid = data.readInt32(); 638 int32_t ret = del(name, uid); 639 reply->writeNoException(); 640 reply->writeInt32(ret); 641 return NO_ERROR; 642 } break; 643 case EXIST: { 644 CHECK_INTERFACE(IKeystoreService, data, reply); 645 String16 name = data.readString16(); 646 int uid = data.readInt32(); 647 int32_t ret = exist(name, uid); 648 reply->writeNoException(); 649 reply->writeInt32(ret); 650 return NO_ERROR; 651 } break; 652 case SAW: { 653 CHECK_INTERFACE(IKeystoreService, data, reply); 654 String16 name = data.readString16(); 655 int uid = data.readInt32(); 656 Vector<String16> matches; 657 int32_t ret = saw(name, uid, &matches); 658 reply->writeNoException(); 659 reply->writeInt32(matches.size()); 660 Vector<String16>::const_iterator it = matches.begin(); 661 for (; it != matches.end(); ++it) { 662 reply->writeString16(*it); 663 } 664 reply->writeInt32(ret); 665 return NO_ERROR; 666 } break; 667 case RESET: { 668 CHECK_INTERFACE(IKeystoreService, data, reply); 669 int32_t ret = reset(); 670 reply->writeNoException(); 671 reply->writeInt32(ret); 672 return NO_ERROR; 673 } break; 674 case PASSWORD: { 675 CHECK_INTERFACE(IKeystoreService, data, reply); 676 String16 pass = data.readString16(); 677 int32_t ret = password(pass); 678 reply->writeNoException(); 679 reply->writeInt32(ret); 680 return NO_ERROR; 681 } break; 682 case LOCK: { 683 CHECK_INTERFACE(IKeystoreService, data, reply); 684 int32_t ret = lock(); 685 reply->writeNoException(); 686 reply->writeInt32(ret); 687 return NO_ERROR; 688 } break; 689 case UNLOCK: { 690 CHECK_INTERFACE(IKeystoreService, data, reply); 691 String16 pass = data.readString16(); 692 int32_t ret = unlock(pass); 693 reply->writeNoException(); 694 reply->writeInt32(ret); 695 return NO_ERROR; 696 } break; 697 case ZERO: { 698 CHECK_INTERFACE(IKeystoreService, data, reply); 699 int32_t ret = zero(); 700 reply->writeNoException(); 701 reply->writeInt32(ret); 702 return NO_ERROR; 703 } break; 704 case GENERATE: { 705 CHECK_INTERFACE(IKeystoreService, data, reply); 706 String16 name = data.readString16(); 707 int32_t uid = data.readInt32(); 708 int32_t keyType = data.readInt32(); 709 int32_t keySize = data.readInt32(); 710 int32_t flags = data.readInt32(); 711 Vector<sp<KeystoreArg> > args; 712 ssize_t numArgs = data.readInt32(); 713 if (numArgs > 0) { 714 for (size_t i = 0; i < (size_t) numArgs; i++) { 715 ssize_t inSize = data.readInt32(); 716 if (inSize >= 0 && (size_t) inSize <= data.dataAvail()) { 717 sp<KeystoreArg> arg = new KeystoreArg(data.readInplace(inSize), inSize); 718 args.push_back(arg); 719 } else { 720 args.push_back(NULL); 721 } 722 } 723 } 724 int32_t ret = generate(name, uid, keyType, keySize, flags, &args); 725 reply->writeNoException(); 726 reply->writeInt32(ret); 727 return NO_ERROR; 728 } break; 729 case IMPORT: { 730 CHECK_INTERFACE(IKeystoreService, data, reply); 731 String16 name = data.readString16(); 732 ssize_t inSize = data.readInt32(); 733 const void* in; 734 if (inSize >= 0 && (size_t) inSize <= data.dataAvail()) { 735 in = data.readInplace(inSize); 736 } else { 737 in = NULL; 738 inSize = 0; 739 } 740 int uid = data.readInt32(); 741 int32_t flags = data.readInt32(); 742 int32_t ret = import(name, (const uint8_t*) in, (size_t) inSize, uid, flags); 743 reply->writeNoException(); 744 reply->writeInt32(ret); 745 return NO_ERROR; 746 } break; 747 case SIGN: { 748 CHECK_INTERFACE(IKeystoreService, data, reply); 749 String16 name = data.readString16(); 750 ssize_t inSize = data.readInt32(); 751 const void* in; 752 if (inSize >= 0 && (size_t) inSize <= data.dataAvail()) { 753 in = data.readInplace(inSize); 754 } else { 755 in = NULL; 756 inSize = 0; 757 } 758 void* out = NULL; 759 size_t outSize = 0; 760 int32_t ret = sign(name, (const uint8_t*) in, (size_t) inSize, (uint8_t**) &out, &outSize); 761 reply->writeNoException(); 762 if (outSize > 0 && out != NULL) { 763 reply->writeInt32(outSize); 764 void* buf = reply->writeInplace(outSize); 765 memcpy(buf, out, outSize); 766 free(out); 767 } else { 768 reply->writeInt32(-1); 769 } 770 reply->writeInt32(ret); 771 return NO_ERROR; 772 } break; 773 case VERIFY: { 774 CHECK_INTERFACE(IKeystoreService, data, reply); 775 String16 name = data.readString16(); 776 ssize_t inSize = data.readInt32(); 777 const void* in; 778 if (inSize >= 0 && (size_t) inSize <= data.dataAvail()) { 779 in = data.readInplace(inSize); 780 } else { 781 in = NULL; 782 inSize = 0; 783 } 784 ssize_t sigSize = data.readInt32(); 785 const void* sig; 786 if (sigSize >= 0 && (size_t) sigSize <= data.dataAvail()) { 787 sig = data.readInplace(sigSize); 788 } else { 789 sig = NULL; 790 sigSize = 0; 791 } 792 bool ret = verify(name, (const uint8_t*) in, (size_t) inSize, (const uint8_t*) sig, 793 (size_t) sigSize); 794 reply->writeNoException(); 795 reply->writeInt32(ret ? 1 : 0); 796 return NO_ERROR; 797 } break; 798 case GET_PUBKEY: { 799 CHECK_INTERFACE(IKeystoreService, data, reply); 800 String16 name = data.readString16(); 801 void* out = NULL; 802 size_t outSize = 0; 803 int32_t ret = get_pubkey(name, (unsigned char**) &out, &outSize); 804 reply->writeNoException(); 805 if (outSize > 0 && out != NULL) { 806 reply->writeInt32(outSize); 807 void* buf = reply->writeInplace(outSize); 808 memcpy(buf, out, outSize); 809 free(out); 810 } else { 811 reply->writeInt32(-1); 812 } 813 reply->writeInt32(ret); 814 return NO_ERROR; 815 } break; 816 case DEL_KEY: { 817 CHECK_INTERFACE(IKeystoreService, data, reply); 818 String16 name = data.readString16(); 819 int uid = data.readInt32(); 820 int32_t ret = del_key(name, uid); 821 reply->writeNoException(); 822 reply->writeInt32(ret); 823 return NO_ERROR; 824 } break; 825 case GRANT: { 826 CHECK_INTERFACE(IKeystoreService, data, reply); 827 String16 name = data.readString16(); 828 int32_t granteeUid = data.readInt32(); 829 int32_t ret = grant(name, granteeUid); 830 reply->writeNoException(); 831 reply->writeInt32(ret); 832 return NO_ERROR; 833 } break; 834 case UNGRANT: { 835 CHECK_INTERFACE(IKeystoreService, data, reply); 836 String16 name = data.readString16(); 837 int32_t granteeUid = data.readInt32(); 838 int32_t ret = ungrant(name, granteeUid); 839 reply->writeNoException(); 840 reply->writeInt32(ret); 841 return NO_ERROR; 842 } break; 843 case GETMTIME: { 844 CHECK_INTERFACE(IKeystoreService, data, reply); 845 String16 name = data.readString16(); 846 int64_t ret = getmtime(name); 847 reply->writeNoException(); 848 reply->writeInt64(ret); 849 return NO_ERROR; 850 } break; 851 case DUPLICATE: { 852 CHECK_INTERFACE(IKeystoreService, data, reply); 853 String16 srcKey = data.readString16(); 854 int32_t srcUid = data.readInt32(); 855 String16 destKey = data.readString16(); 856 int32_t destUid = data.readInt32(); 857 int32_t ret = duplicate(srcKey, srcUid, destKey, destUid); 858 reply->writeNoException(); 859 reply->writeInt32(ret); 860 return NO_ERROR; 861 } break; 862 case IS_HARDWARE_BACKED: { 863 CHECK_INTERFACE(IKeystoreService, data, reply); 864 String16 keyType = data.readString16(); 865 int32_t ret = is_hardware_backed(keyType); 866 reply->writeNoException(); 867 reply->writeInt32(ret); 868 return NO_ERROR; 869 } 870 case CLEAR_UID: { 871 CHECK_INTERFACE(IKeystoreService, data, reply); 872 int64_t uid = data.readInt64(); 873 int32_t ret = clear_uid(uid); 874 reply->writeNoException(); 875 reply->writeInt32(ret); 876 return NO_ERROR; 877 } 878 default: 879 return BBinder::onTransact(code, data, reply, flags); 880 } 881 } 882 883 // ---------------------------------------------------------------------------- 884 885 }; // namespace android 886
