henrike@webrtc.org | 0e118e7 | 2013-07-10 00:45:36 +0000 | [diff] [blame] | 1 | /* |
| 2 | * libjingle |
| 3 | * Copyright 2004--2008, Google Inc. |
| 4 | * Copyright 2004--2011, RTFM, Inc. |
| 5 | * |
| 6 | * Redistribution and use in source and binary forms, with or without |
| 7 | * modification, are permitted provided that the following conditions are met: |
| 8 | * |
| 9 | * 1. Redistributions of source code must retain the above copyright notice, |
| 10 | * this list of conditions and the following disclaimer. |
| 11 | * 2. Redistributions in binary form must reproduce the above copyright notice, |
| 12 | * this list of conditions and the following disclaimer in the documentation |
| 13 | * and/or other materials provided with the distribution. |
| 14 | * 3. The name of the author may not be used to endorse or promote products |
| 15 | * derived from this software without specific prior written permission. |
| 16 | * |
| 17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED |
| 18 | * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF |
| 19 | * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO |
| 20 | * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| 21 | * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
| 22 | * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; |
| 23 | * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, |
| 24 | * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR |
| 25 | * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF |
| 26 | * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| 27 | */ |
| 28 | |
| 29 | #include <vector> |
| 30 | |
| 31 | #if HAVE_CONFIG_H |
| 32 | #include "config.h" |
| 33 | #endif // HAVE_CONFIG_H |
| 34 | |
| 35 | #if HAVE_NSS_SSL_H |
| 36 | |
| 37 | #include "talk/base/nssstreamadapter.h" |
| 38 | |
| 39 | #include "keyhi.h" |
| 40 | #include "nspr.h" |
| 41 | #include "nss.h" |
| 42 | #include "pk11pub.h" |
| 43 | #include "secerr.h" |
| 44 | |
| 45 | #ifdef NSS_SSL_RELATIVE_PATH |
| 46 | #include "ssl.h" |
| 47 | #include "sslerr.h" |
| 48 | #include "sslproto.h" |
| 49 | #else |
| 50 | #include "net/third_party/nss/ssl/ssl.h" |
| 51 | #include "net/third_party/nss/ssl/sslerr.h" |
| 52 | #include "net/third_party/nss/ssl/sslproto.h" |
| 53 | #endif |
| 54 | |
| 55 | #include "talk/base/nssidentity.h" |
jiayl@webrtc.org | 13a42bc | 2014-01-29 17:45:53 +0000 | [diff] [blame] | 56 | #include "talk/base/safe_conversions.h" |
henrike@webrtc.org | 0e118e7 | 2013-07-10 00:45:36 +0000 | [diff] [blame] | 57 | #include "talk/base/thread.h" |
| 58 | |
| 59 | namespace talk_base { |
| 60 | |
| 61 | PRDescIdentity NSSStreamAdapter::nspr_layer_identity = PR_INVALID_IO_LAYER; |
| 62 | |
| 63 | #define UNIMPLEMENTED \ |
| 64 | PR_SetError(PR_NOT_IMPLEMENTED_ERROR, 0); \ |
| 65 | LOG(LS_ERROR) \ |
| 66 | << "Call to unimplemented function "<< __FUNCTION__; ASSERT(false) |
| 67 | |
| 68 | #ifdef SRTP_AES128_CM_HMAC_SHA1_80 |
| 69 | #define HAVE_DTLS_SRTP |
| 70 | #endif |
| 71 | |
| 72 | #ifdef HAVE_DTLS_SRTP |
| 73 | // SRTP cipher suite table |
| 74 | struct SrtpCipherMapEntry { |
| 75 | const char* external_name; |
| 76 | PRUint16 cipher_id; |
| 77 | }; |
| 78 | |
| 79 | // This isn't elegant, but it's better than an external reference |
| 80 | static const SrtpCipherMapEntry kSrtpCipherMap[] = { |
| 81 | {"AES_CM_128_HMAC_SHA1_80", SRTP_AES128_CM_HMAC_SHA1_80 }, |
| 82 | {"AES_CM_128_HMAC_SHA1_32", SRTP_AES128_CM_HMAC_SHA1_32 }, |
| 83 | {NULL, 0} |
| 84 | }; |
| 85 | #endif |
| 86 | |
| 87 | |
| 88 | // Implementation of NSPR methods |
| 89 | static PRStatus StreamClose(PRFileDesc *socket) { |
jiayl@webrtc.org | 13a42bc | 2014-01-29 17:45:53 +0000 | [diff] [blame] | 90 | ASSERT(!socket->lower); |
| 91 | socket->dtor(socket); |
henrike@webrtc.org | 0e118e7 | 2013-07-10 00:45:36 +0000 | [diff] [blame] | 92 | return PR_SUCCESS; |
| 93 | } |
| 94 | |
| 95 | static PRInt32 StreamRead(PRFileDesc *socket, void *buf, PRInt32 length) { |
| 96 | StreamInterface *stream = reinterpret_cast<StreamInterface *>(socket->secret); |
| 97 | size_t read; |
| 98 | int error; |
| 99 | StreamResult result = stream->Read(buf, length, &read, &error); |
| 100 | if (result == SR_SUCCESS) { |
jiayl@webrtc.org | 13a42bc | 2014-01-29 17:45:53 +0000 | [diff] [blame] | 101 | return checked_cast<PRInt32>(read); |
henrike@webrtc.org | 0e118e7 | 2013-07-10 00:45:36 +0000 | [diff] [blame] | 102 | } |
| 103 | |
| 104 | if (result == SR_EOS) { |
| 105 | return 0; |
| 106 | } |
| 107 | |
| 108 | if (result == SR_BLOCK) { |
| 109 | PR_SetError(PR_WOULD_BLOCK_ERROR, 0); |
| 110 | return -1; |
| 111 | } |
| 112 | |
| 113 | PR_SetError(PR_UNKNOWN_ERROR, error); |
| 114 | return -1; |
| 115 | } |
| 116 | |
| 117 | static PRInt32 StreamWrite(PRFileDesc *socket, const void *buf, |
| 118 | PRInt32 length) { |
| 119 | StreamInterface *stream = reinterpret_cast<StreamInterface *>(socket->secret); |
| 120 | size_t written; |
| 121 | int error; |
| 122 | StreamResult result = stream->Write(buf, length, &written, &error); |
| 123 | if (result == SR_SUCCESS) { |
jiayl@webrtc.org | 13a42bc | 2014-01-29 17:45:53 +0000 | [diff] [blame] | 124 | return checked_cast<PRInt32>(written); |
henrike@webrtc.org | 0e118e7 | 2013-07-10 00:45:36 +0000 | [diff] [blame] | 125 | } |
| 126 | |
| 127 | if (result == SR_BLOCK) { |
| 128 | LOG(LS_INFO) << |
| 129 | "NSSStreamAdapter: write to underlying transport would block"; |
| 130 | PR_SetError(PR_WOULD_BLOCK_ERROR, 0); |
| 131 | return -1; |
| 132 | } |
| 133 | |
| 134 | LOG(LS_ERROR) << "Write error"; |
| 135 | PR_SetError(PR_UNKNOWN_ERROR, error); |
| 136 | return -1; |
| 137 | } |
| 138 | |
| 139 | static PRInt32 StreamAvailable(PRFileDesc *socket) { |
| 140 | UNIMPLEMENTED; |
| 141 | return -1; |
| 142 | } |
| 143 | |
| 144 | PRInt64 StreamAvailable64(PRFileDesc *socket) { |
| 145 | UNIMPLEMENTED; |
| 146 | return -1; |
| 147 | } |
| 148 | |
| 149 | static PRStatus StreamSync(PRFileDesc *socket) { |
| 150 | UNIMPLEMENTED; |
| 151 | return PR_FAILURE; |
| 152 | } |
| 153 | |
| 154 | static PROffset32 StreamSeek(PRFileDesc *socket, PROffset32 offset, |
| 155 | PRSeekWhence how) { |
| 156 | UNIMPLEMENTED; |
| 157 | return -1; |
| 158 | } |
| 159 | |
| 160 | static PROffset64 StreamSeek64(PRFileDesc *socket, PROffset64 offset, |
| 161 | PRSeekWhence how) { |
| 162 | UNIMPLEMENTED; |
| 163 | return -1; |
| 164 | } |
| 165 | |
| 166 | static PRStatus StreamFileInfo(PRFileDesc *socket, PRFileInfo *info) { |
| 167 | UNIMPLEMENTED; |
| 168 | return PR_FAILURE; |
| 169 | } |
| 170 | |
| 171 | static PRStatus StreamFileInfo64(PRFileDesc *socket, PRFileInfo64 *info) { |
| 172 | UNIMPLEMENTED; |
| 173 | return PR_FAILURE; |
| 174 | } |
| 175 | |
| 176 | static PRInt32 StreamWritev(PRFileDesc *socket, const PRIOVec *iov, |
| 177 | PRInt32 iov_size, PRIntervalTime timeout) { |
| 178 | UNIMPLEMENTED; |
| 179 | return -1; |
| 180 | } |
| 181 | |
| 182 | static PRStatus StreamConnect(PRFileDesc *socket, const PRNetAddr *addr, |
| 183 | PRIntervalTime timeout) { |
| 184 | UNIMPLEMENTED; |
| 185 | return PR_FAILURE; |
| 186 | } |
| 187 | |
| 188 | static PRFileDesc *StreamAccept(PRFileDesc *sd, PRNetAddr *addr, |
| 189 | PRIntervalTime timeout) { |
| 190 | UNIMPLEMENTED; |
| 191 | return NULL; |
| 192 | } |
| 193 | |
| 194 | static PRStatus StreamBind(PRFileDesc *socket, const PRNetAddr *addr) { |
| 195 | UNIMPLEMENTED; |
| 196 | return PR_FAILURE; |
| 197 | } |
| 198 | |
| 199 | static PRStatus StreamListen(PRFileDesc *socket, PRIntn depth) { |
| 200 | UNIMPLEMENTED; |
| 201 | return PR_FAILURE; |
| 202 | } |
| 203 | |
| 204 | static PRStatus StreamShutdown(PRFileDesc *socket, PRIntn how) { |
| 205 | UNIMPLEMENTED; |
| 206 | return PR_FAILURE; |
| 207 | } |
| 208 | |
| 209 | // Note: this is always nonblocking and ignores the timeout. |
| 210 | // TODO(ekr@rtfm.com): In future verify that the socket is |
| 211 | // actually in non-blocking mode. |
| 212 | // This function does not support peek. |
| 213 | static PRInt32 StreamRecv(PRFileDesc *socket, void *buf, PRInt32 amount, |
| 214 | PRIntn flags, PRIntervalTime to) { |
| 215 | ASSERT(flags == 0); |
| 216 | |
| 217 | if (flags != 0) { |
| 218 | PR_SetError(PR_NOT_IMPLEMENTED_ERROR, 0); |
| 219 | return -1; |
| 220 | } |
| 221 | |
| 222 | return StreamRead(socket, buf, amount); |
| 223 | } |
| 224 | |
| 225 | // Note: this is always nonblocking and assumes a zero timeout. |
| 226 | // This function does not support peek. |
| 227 | static PRInt32 StreamSend(PRFileDesc *socket, const void *buf, |
| 228 | PRInt32 amount, PRIntn flags, |
| 229 | PRIntervalTime to) { |
| 230 | ASSERT(flags == 0); |
| 231 | |
| 232 | return StreamWrite(socket, buf, amount); |
| 233 | } |
| 234 | |
| 235 | static PRInt32 StreamRecvfrom(PRFileDesc *socket, void *buf, |
| 236 | PRInt32 amount, PRIntn flags, |
| 237 | PRNetAddr *addr, PRIntervalTime to) { |
| 238 | UNIMPLEMENTED; |
| 239 | return -1; |
| 240 | } |
| 241 | |
| 242 | static PRInt32 StreamSendto(PRFileDesc *socket, const void *buf, |
| 243 | PRInt32 amount, PRIntn flags, |
| 244 | const PRNetAddr *addr, PRIntervalTime to) { |
| 245 | UNIMPLEMENTED; |
| 246 | return -1; |
| 247 | } |
| 248 | |
| 249 | static PRInt16 StreamPoll(PRFileDesc *socket, PRInt16 in_flags, |
| 250 | PRInt16 *out_flags) { |
| 251 | UNIMPLEMENTED; |
| 252 | return -1; |
| 253 | } |
| 254 | |
| 255 | static PRInt32 StreamAcceptRead(PRFileDesc *sd, PRFileDesc **nd, |
| 256 | PRNetAddr **raddr, |
| 257 | void *buf, PRInt32 amount, PRIntervalTime t) { |
| 258 | UNIMPLEMENTED; |
| 259 | return -1; |
| 260 | } |
| 261 | |
| 262 | static PRInt32 StreamTransmitFile(PRFileDesc *sd, PRFileDesc *socket, |
| 263 | const void *headers, PRInt32 hlen, |
| 264 | PRTransmitFileFlags flags, PRIntervalTime t) { |
| 265 | UNIMPLEMENTED; |
| 266 | return -1; |
| 267 | } |
| 268 | |
| 269 | static PRStatus StreamGetPeerName(PRFileDesc *socket, PRNetAddr *addr) { |
| 270 | // TODO(ekr@rtfm.com): Modify to return unique names for each channel |
| 271 | // somehow, as opposed to always the same static address. The current |
| 272 | // implementation messes up the session cache, which is why it's off |
| 273 | // elsewhere |
| 274 | addr->inet.family = PR_AF_INET; |
| 275 | addr->inet.port = 0; |
| 276 | addr->inet.ip = 0; |
| 277 | |
| 278 | return PR_SUCCESS; |
| 279 | } |
| 280 | |
| 281 | static PRStatus StreamGetSockName(PRFileDesc *socket, PRNetAddr *addr) { |
| 282 | UNIMPLEMENTED; |
| 283 | return PR_FAILURE; |
| 284 | } |
| 285 | |
| 286 | static PRStatus StreamGetSockOption(PRFileDesc *socket, PRSocketOptionData *opt) { |
| 287 | switch (opt->option) { |
| 288 | case PR_SockOpt_Nonblocking: |
| 289 | opt->value.non_blocking = PR_TRUE; |
| 290 | return PR_SUCCESS; |
| 291 | default: |
| 292 | UNIMPLEMENTED; |
| 293 | break; |
| 294 | } |
| 295 | |
| 296 | return PR_FAILURE; |
| 297 | } |
| 298 | |
| 299 | // Imitate setting socket options. These are mostly noops. |
| 300 | static PRStatus StreamSetSockOption(PRFileDesc *socket, |
| 301 | const PRSocketOptionData *opt) { |
| 302 | switch (opt->option) { |
| 303 | case PR_SockOpt_Nonblocking: |
| 304 | return PR_SUCCESS; |
| 305 | case PR_SockOpt_NoDelay: |
| 306 | return PR_SUCCESS; |
| 307 | default: |
| 308 | UNIMPLEMENTED; |
| 309 | break; |
| 310 | } |
| 311 | |
| 312 | return PR_FAILURE; |
| 313 | } |
| 314 | |
| 315 | static PRInt32 StreamSendfile(PRFileDesc *out, PRSendFileData *in, |
| 316 | PRTransmitFileFlags flags, PRIntervalTime to) { |
| 317 | UNIMPLEMENTED; |
| 318 | return -1; |
| 319 | } |
| 320 | |
| 321 | static PRStatus StreamConnectContinue(PRFileDesc *socket, PRInt16 flags) { |
| 322 | UNIMPLEMENTED; |
| 323 | return PR_FAILURE; |
| 324 | } |
| 325 | |
| 326 | static PRIntn StreamReserved(PRFileDesc *socket) { |
| 327 | UNIMPLEMENTED; |
| 328 | return -1; |
| 329 | } |
| 330 | |
| 331 | static const struct PRIOMethods nss_methods = { |
| 332 | PR_DESC_LAYERED, |
| 333 | StreamClose, |
| 334 | StreamRead, |
| 335 | StreamWrite, |
| 336 | StreamAvailable, |
| 337 | StreamAvailable64, |
| 338 | StreamSync, |
| 339 | StreamSeek, |
| 340 | StreamSeek64, |
| 341 | StreamFileInfo, |
| 342 | StreamFileInfo64, |
| 343 | StreamWritev, |
| 344 | StreamConnect, |
| 345 | StreamAccept, |
| 346 | StreamBind, |
| 347 | StreamListen, |
| 348 | StreamShutdown, |
| 349 | StreamRecv, |
| 350 | StreamSend, |
| 351 | StreamRecvfrom, |
| 352 | StreamSendto, |
| 353 | StreamPoll, |
| 354 | StreamAcceptRead, |
| 355 | StreamTransmitFile, |
| 356 | StreamGetSockName, |
| 357 | StreamGetPeerName, |
| 358 | StreamReserved, |
| 359 | StreamReserved, |
| 360 | StreamGetSockOption, |
| 361 | StreamSetSockOption, |
| 362 | StreamSendfile, |
| 363 | StreamConnectContinue, |
| 364 | StreamReserved, |
| 365 | StreamReserved, |
| 366 | StreamReserved, |
| 367 | StreamReserved |
| 368 | }; |
| 369 | |
| 370 | NSSStreamAdapter::NSSStreamAdapter(StreamInterface *stream) |
| 371 | : SSLStreamAdapterHelper(stream), |
| 372 | ssl_fd_(NULL), |
| 373 | cert_ok_(false) { |
| 374 | } |
| 375 | |
| 376 | bool NSSStreamAdapter::Init() { |
| 377 | if (nspr_layer_identity == PR_INVALID_IO_LAYER) { |
| 378 | nspr_layer_identity = PR_GetUniqueIdentity("nssstreamadapter"); |
| 379 | } |
| 380 | PRFileDesc *pr_fd = PR_CreateIOLayerStub(nspr_layer_identity, &nss_methods); |
| 381 | if (!pr_fd) |
| 382 | return false; |
| 383 | pr_fd->secret = reinterpret_cast<PRFilePrivate *>(stream()); |
| 384 | |
| 385 | PRFileDesc *ssl_fd; |
| 386 | if (ssl_mode_ == SSL_MODE_DTLS) { |
| 387 | ssl_fd = DTLS_ImportFD(NULL, pr_fd); |
| 388 | } else { |
| 389 | ssl_fd = SSL_ImportFD(NULL, pr_fd); |
| 390 | } |
| 391 | ASSERT(ssl_fd != NULL); // This should never happen |
| 392 | if (!ssl_fd) { |
| 393 | PR_Close(pr_fd); |
| 394 | return false; |
| 395 | } |
| 396 | |
| 397 | SECStatus rv; |
| 398 | // Turn on security. |
| 399 | rv = SSL_OptionSet(ssl_fd, SSL_SECURITY, PR_TRUE); |
| 400 | if (rv != SECSuccess) { |
| 401 | LOG(LS_ERROR) << "Error enabling security on SSL Socket"; |
| 402 | return false; |
| 403 | } |
| 404 | |
| 405 | // Disable SSLv2. |
| 406 | rv = SSL_OptionSet(ssl_fd, SSL_ENABLE_SSL2, PR_FALSE); |
| 407 | if (rv != SECSuccess) { |
| 408 | LOG(LS_ERROR) << "Error disabling SSL2"; |
| 409 | return false; |
| 410 | } |
| 411 | |
| 412 | // Disable caching. |
| 413 | // TODO(ekr@rtfm.com): restore this when I have the caching |
| 414 | // identity set. |
| 415 | rv = SSL_OptionSet(ssl_fd, SSL_NO_CACHE, PR_TRUE); |
| 416 | if (rv != SECSuccess) { |
| 417 | LOG(LS_ERROR) << "Error disabling cache"; |
| 418 | return false; |
| 419 | } |
| 420 | |
| 421 | // Disable session tickets. |
| 422 | rv = SSL_OptionSet(ssl_fd, SSL_ENABLE_SESSION_TICKETS, PR_FALSE); |
| 423 | if (rv != SECSuccess) { |
| 424 | LOG(LS_ERROR) << "Error enabling tickets"; |
| 425 | return false; |
| 426 | } |
| 427 | |
| 428 | // Disable renegotiation. |
| 429 | rv = SSL_OptionSet(ssl_fd, SSL_ENABLE_RENEGOTIATION, |
| 430 | SSL_RENEGOTIATE_NEVER); |
| 431 | if (rv != SECSuccess) { |
| 432 | LOG(LS_ERROR) << "Error disabling renegotiation"; |
| 433 | return false; |
| 434 | } |
| 435 | |
| 436 | // Disable false start. |
| 437 | rv = SSL_OptionSet(ssl_fd, SSL_ENABLE_FALSE_START, PR_FALSE); |
| 438 | if (rv != SECSuccess) { |
| 439 | LOG(LS_ERROR) << "Error disabling false start"; |
| 440 | return false; |
| 441 | } |
jiayl@webrtc.org | 13a42bc | 2014-01-29 17:45:53 +0000 | [diff] [blame] | 442 | |
henrike@webrtc.org | 0e118e7 | 2013-07-10 00:45:36 +0000 | [diff] [blame] | 443 | ssl_fd_ = ssl_fd; |
| 444 | |
| 445 | return true; |
| 446 | } |
| 447 | |
| 448 | NSSStreamAdapter::~NSSStreamAdapter() { |
| 449 | if (ssl_fd_) |
| 450 | PR_Close(ssl_fd_); |
| 451 | }; |
| 452 | |
| 453 | |
| 454 | int NSSStreamAdapter::BeginSSL() { |
| 455 | SECStatus rv; |
| 456 | |
| 457 | if (!Init()) { |
| 458 | Error("Init", -1, false); |
| 459 | return -1; |
| 460 | } |
| 461 | |
| 462 | ASSERT(state_ == SSL_CONNECTING); |
| 463 | // The underlying stream has been opened. If we are in peer-to-peer mode |
| 464 | // then a peer certificate must have been specified by now. |
| 465 | ASSERT(!ssl_server_name_.empty() || |
| 466 | peer_certificate_.get() != NULL || |
| 467 | !peer_certificate_digest_algorithm_.empty()); |
| 468 | LOG(LS_INFO) << "BeginSSL: " |
| 469 | << (!ssl_server_name_.empty() ? ssl_server_name_ : |
| 470 | "with peer"); |
| 471 | |
| 472 | if (role_ == SSL_CLIENT) { |
| 473 | LOG(LS_INFO) << "BeginSSL: as client"; |
| 474 | |
| 475 | rv = SSL_GetClientAuthDataHook(ssl_fd_, GetClientAuthDataHook, |
| 476 | this); |
| 477 | if (rv != SECSuccess) { |
| 478 | Error("BeginSSL", -1, false); |
| 479 | return -1; |
| 480 | } |
| 481 | } else { |
| 482 | LOG(LS_INFO) << "BeginSSL: as server"; |
| 483 | NSSIdentity *identity; |
| 484 | |
| 485 | if (identity_.get()) { |
| 486 | identity = static_cast<NSSIdentity *>(identity_.get()); |
| 487 | } else { |
| 488 | LOG(LS_ERROR) << "Can't be an SSL server without an identity"; |
| 489 | Error("BeginSSL", -1, false); |
| 490 | return -1; |
| 491 | } |
| 492 | rv = SSL_ConfigSecureServer(ssl_fd_, identity->certificate().certificate(), |
| 493 | identity->keypair()->privkey(), |
| 494 | kt_rsa); |
| 495 | if (rv != SECSuccess) { |
| 496 | Error("BeginSSL", -1, false); |
| 497 | return -1; |
| 498 | } |
| 499 | |
| 500 | // Insist on a certificate from the client |
| 501 | rv = SSL_OptionSet(ssl_fd_, SSL_REQUEST_CERTIFICATE, PR_TRUE); |
| 502 | if (rv != SECSuccess) { |
| 503 | Error("BeginSSL", -1, false); |
| 504 | return -1; |
| 505 | } |
| 506 | |
| 507 | rv = SSL_OptionSet(ssl_fd_, SSL_REQUIRE_CERTIFICATE, PR_TRUE); |
| 508 | if (rv != SECSuccess) { |
| 509 | Error("BeginSSL", -1, false); |
| 510 | return -1; |
| 511 | } |
| 512 | } |
| 513 | |
| 514 | // Set the version range. |
| 515 | SSLVersionRange vrange; |
| 516 | vrange.min = (ssl_mode_ == SSL_MODE_DTLS) ? |
| 517 | SSL_LIBRARY_VERSION_TLS_1_1 : |
| 518 | SSL_LIBRARY_VERSION_TLS_1_0; |
| 519 | vrange.max = SSL_LIBRARY_VERSION_TLS_1_1; |
jiayl@webrtc.org | 13a42bc | 2014-01-29 17:45:53 +0000 | [diff] [blame] | 520 | |
henrike@webrtc.org | 0e118e7 | 2013-07-10 00:45:36 +0000 | [diff] [blame] | 521 | rv = SSL_VersionRangeSet(ssl_fd_, &vrange); |
| 522 | if (rv != SECSuccess) { |
| 523 | Error("BeginSSL", -1, false); |
| 524 | return -1; |
| 525 | } |
| 526 | |
| 527 | // SRTP |
| 528 | #ifdef HAVE_DTLS_SRTP |
| 529 | if (!srtp_ciphers_.empty()) { |
jiayl@webrtc.org | 13a42bc | 2014-01-29 17:45:53 +0000 | [diff] [blame] | 530 | rv = SSL_SetSRTPCiphers( |
| 531 | ssl_fd_, &srtp_ciphers_[0], |
| 532 | checked_cast<unsigned int>(srtp_ciphers_.size())); |
henrike@webrtc.org | 0e118e7 | 2013-07-10 00:45:36 +0000 | [diff] [blame] | 533 | if (rv != SECSuccess) { |
| 534 | Error("BeginSSL", -1, false); |
| 535 | return -1; |
| 536 | } |
| 537 | } |
| 538 | #endif |
| 539 | |
| 540 | // Certificate validation |
| 541 | rv = SSL_AuthCertificateHook(ssl_fd_, AuthCertificateHook, this); |
| 542 | if (rv != SECSuccess) { |
| 543 | Error("BeginSSL", -1, false); |
| 544 | return -1; |
| 545 | } |
| 546 | |
| 547 | // Now start the handshake |
| 548 | rv = SSL_ResetHandshake(ssl_fd_, role_ == SSL_SERVER ? PR_TRUE : PR_FALSE); |
| 549 | if (rv != SECSuccess) { |
| 550 | Error("BeginSSL", -1, false); |
| 551 | return -1; |
| 552 | } |
| 553 | |
| 554 | return ContinueSSL(); |
| 555 | } |
| 556 | |
| 557 | int NSSStreamAdapter::ContinueSSL() { |
| 558 | LOG(LS_INFO) << "ContinueSSL"; |
| 559 | ASSERT(state_ == SSL_CONNECTING); |
| 560 | |
| 561 | // Clear the DTLS timer |
| 562 | Thread::Current()->Clear(this, MSG_DTLS_TIMEOUT); |
| 563 | |
| 564 | SECStatus rv = SSL_ForceHandshake(ssl_fd_); |
| 565 | |
| 566 | if (rv == SECSuccess) { |
| 567 | LOG(LS_INFO) << "Handshake complete"; |
| 568 | |
| 569 | ASSERT(cert_ok_); |
| 570 | if (!cert_ok_) { |
| 571 | Error("ContinueSSL", -1, true); |
| 572 | return -1; |
| 573 | } |
| 574 | |
| 575 | state_ = SSL_CONNECTED; |
| 576 | StreamAdapterInterface::OnEvent(stream(), SE_OPEN|SE_READ|SE_WRITE, 0); |
| 577 | return 0; |
| 578 | } |
| 579 | |
| 580 | PRInt32 err = PR_GetError(); |
| 581 | switch (err) { |
| 582 | case SSL_ERROR_RX_MALFORMED_HANDSHAKE: |
| 583 | if (ssl_mode_ != SSL_MODE_DTLS) { |
| 584 | Error("ContinueSSL", -1, true); |
| 585 | return -1; |
| 586 | } else { |
| 587 | LOG(LS_INFO) << "Malformed DTLS message. Ignoring."; |
| 588 | // Fall through |
| 589 | } |
| 590 | case PR_WOULD_BLOCK_ERROR: |
| 591 | LOG(LS_INFO) << "Would have blocked"; |
| 592 | if (ssl_mode_ == SSL_MODE_DTLS) { |
| 593 | PRIntervalTime timeout; |
| 594 | |
| 595 | SECStatus rv = DTLS_GetHandshakeTimeout(ssl_fd_, &timeout); |
| 596 | if (rv == SECSuccess) { |
| 597 | LOG(LS_INFO) << "Timeout is " << timeout << " ms"; |
| 598 | Thread::Current()->PostDelayed(PR_IntervalToMilliseconds(timeout), |
| 599 | this, MSG_DTLS_TIMEOUT, 0); |
| 600 | } |
| 601 | } |
| 602 | |
| 603 | return 0; |
| 604 | default: |
| 605 | LOG(LS_INFO) << "Error " << err; |
| 606 | break; |
| 607 | } |
| 608 | |
| 609 | Error("ContinueSSL", -1, true); |
| 610 | return -1; |
| 611 | } |
| 612 | |
| 613 | void NSSStreamAdapter::Cleanup() { |
| 614 | if (state_ != SSL_ERROR) { |
| 615 | state_ = SSL_CLOSED; |
| 616 | } |
| 617 | |
| 618 | if (ssl_fd_) { |
| 619 | PR_Close(ssl_fd_); |
| 620 | ssl_fd_ = NULL; |
| 621 | } |
| 622 | |
| 623 | identity_.reset(); |
| 624 | peer_certificate_.reset(); |
| 625 | |
| 626 | Thread::Current()->Clear(this, MSG_DTLS_TIMEOUT); |
| 627 | } |
| 628 | |
| 629 | StreamResult NSSStreamAdapter::Read(void* data, size_t data_len, |
| 630 | size_t* read, int* error) { |
| 631 | // SSL_CONNECTED sanity check. |
| 632 | switch (state_) { |
| 633 | case SSL_NONE: |
| 634 | case SSL_WAIT: |
| 635 | case SSL_CONNECTING: |
| 636 | return SR_BLOCK; |
| 637 | |
| 638 | case SSL_CONNECTED: |
| 639 | break; |
| 640 | |
| 641 | case SSL_CLOSED: |
| 642 | return SR_EOS; |
| 643 | |
| 644 | case SSL_ERROR: |
| 645 | default: |
| 646 | if (error) |
| 647 | *error = ssl_error_code_; |
| 648 | return SR_ERROR; |
| 649 | } |
| 650 | |
jiayl@webrtc.org | 13a42bc | 2014-01-29 17:45:53 +0000 | [diff] [blame] | 651 | PRInt32 rv = PR_Read(ssl_fd_, data, checked_cast<PRInt32>(data_len)); |
henrike@webrtc.org | 0e118e7 | 2013-07-10 00:45:36 +0000 | [diff] [blame] | 652 | |
| 653 | if (rv == 0) { |
| 654 | return SR_EOS; |
| 655 | } |
| 656 | |
| 657 | // Error |
| 658 | if (rv < 0) { |
| 659 | PRInt32 err = PR_GetError(); |
| 660 | |
| 661 | switch (err) { |
| 662 | case PR_WOULD_BLOCK_ERROR: |
| 663 | return SR_BLOCK; |
| 664 | default: |
| 665 | Error("Read", -1, false); |
| 666 | *error = err; // libjingle semantics are that this is impl-specific |
| 667 | return SR_ERROR; |
| 668 | } |
| 669 | } |
| 670 | |
| 671 | // Success |
| 672 | *read = rv; |
| 673 | |
| 674 | return SR_SUCCESS; |
| 675 | } |
| 676 | |
| 677 | StreamResult NSSStreamAdapter::Write(const void* data, size_t data_len, |
| 678 | size_t* written, int* error) { |
| 679 | // SSL_CONNECTED sanity check. |
| 680 | switch (state_) { |
| 681 | case SSL_NONE: |
| 682 | case SSL_WAIT: |
| 683 | case SSL_CONNECTING: |
| 684 | return SR_BLOCK; |
| 685 | |
| 686 | case SSL_CONNECTED: |
| 687 | break; |
jiayl@webrtc.org | 13a42bc | 2014-01-29 17:45:53 +0000 | [diff] [blame] | 688 | |
henrike@webrtc.org | 0e118e7 | 2013-07-10 00:45:36 +0000 | [diff] [blame] | 689 | case SSL_ERROR: |
| 690 | case SSL_CLOSED: |
| 691 | default: |
| 692 | if (error) |
| 693 | *error = ssl_error_code_; |
| 694 | return SR_ERROR; |
| 695 | } |
| 696 | |
jiayl@webrtc.org | 13a42bc | 2014-01-29 17:45:53 +0000 | [diff] [blame] | 697 | PRInt32 rv = PR_Write(ssl_fd_, data, checked_cast<PRInt32>(data_len)); |
henrike@webrtc.org | 0e118e7 | 2013-07-10 00:45:36 +0000 | [diff] [blame] | 698 | |
| 699 | // Error |
| 700 | if (rv < 0) { |
| 701 | PRInt32 err = PR_GetError(); |
| 702 | |
| 703 | switch (err) { |
| 704 | case PR_WOULD_BLOCK_ERROR: |
| 705 | return SR_BLOCK; |
| 706 | default: |
| 707 | Error("Write", -1, false); |
| 708 | *error = err; // libjingle semantics are that this is impl-specific |
| 709 | return SR_ERROR; |
| 710 | } |
| 711 | } |
| 712 | |
| 713 | // Success |
| 714 | *written = rv; |
| 715 | |
| 716 | return SR_SUCCESS; |
| 717 | } |
| 718 | |
| 719 | void NSSStreamAdapter::OnEvent(StreamInterface* stream, int events, |
| 720 | int err) { |
| 721 | int events_to_signal = 0; |
| 722 | int signal_error = 0; |
| 723 | ASSERT(stream == this->stream()); |
| 724 | if ((events & SE_OPEN)) { |
| 725 | LOG(LS_INFO) << "NSSStreamAdapter::OnEvent SE_OPEN"; |
| 726 | if (state_ != SSL_WAIT) { |
| 727 | ASSERT(state_ == SSL_NONE); |
| 728 | events_to_signal |= SE_OPEN; |
| 729 | } else { |
| 730 | state_ = SSL_CONNECTING; |
| 731 | if (int err = BeginSSL()) { |
| 732 | Error("BeginSSL", err, true); |
| 733 | return; |
| 734 | } |
| 735 | } |
| 736 | } |
| 737 | if ((events & (SE_READ|SE_WRITE))) { |
| 738 | LOG(LS_INFO) << "NSSStreamAdapter::OnEvent" |
| 739 | << ((events & SE_READ) ? " SE_READ" : "") |
| 740 | << ((events & SE_WRITE) ? " SE_WRITE" : ""); |
| 741 | if (state_ == SSL_NONE) { |
| 742 | events_to_signal |= events & (SE_READ|SE_WRITE); |
| 743 | } else if (state_ == SSL_CONNECTING) { |
| 744 | if (int err = ContinueSSL()) { |
| 745 | Error("ContinueSSL", err, true); |
| 746 | return; |
| 747 | } |
| 748 | } else if (state_ == SSL_CONNECTED) { |
| 749 | if (events & SE_WRITE) { |
| 750 | LOG(LS_INFO) << " -- onStreamWriteable"; |
| 751 | events_to_signal |= SE_WRITE; |
| 752 | } |
| 753 | if (events & SE_READ) { |
| 754 | LOG(LS_INFO) << " -- onStreamReadable"; |
| 755 | events_to_signal |= SE_READ; |
| 756 | } |
| 757 | } |
| 758 | } |
| 759 | if ((events & SE_CLOSE)) { |
| 760 | LOG(LS_INFO) << "NSSStreamAdapter::OnEvent(SE_CLOSE, " << err << ")"; |
| 761 | Cleanup(); |
| 762 | events_to_signal |= SE_CLOSE; |
| 763 | // SE_CLOSE is the only event that uses the final parameter to OnEvent(). |
| 764 | ASSERT(signal_error == 0); |
| 765 | signal_error = err; |
| 766 | } |
| 767 | if (events_to_signal) |
| 768 | StreamAdapterInterface::OnEvent(stream, events_to_signal, signal_error); |
| 769 | } |
| 770 | |
| 771 | void NSSStreamAdapter::OnMessage(Message* msg) { |
| 772 | // Process our own messages and then pass others to the superclass |
| 773 | if (MSG_DTLS_TIMEOUT == msg->message_id) { |
| 774 | LOG(LS_INFO) << "DTLS timeout expired"; |
| 775 | ContinueSSL(); |
| 776 | } else { |
| 777 | StreamInterface::OnMessage(msg); |
| 778 | } |
| 779 | } |
| 780 | |
| 781 | // Certificate verification callback. Called to check any certificate |
| 782 | SECStatus NSSStreamAdapter::AuthCertificateHook(void *arg, |
| 783 | PRFileDesc *fd, |
| 784 | PRBool checksig, |
| 785 | PRBool isServer) { |
| 786 | LOG(LS_INFO) << "NSSStreamAdapter::AuthCertificateHook"; |
henrike@webrtc.org | 7587c5e | 2014-02-27 17:52:04 +0000 | [diff] [blame] | 787 | // SSL_PeerCertificate returns a pointer that is owned by the caller, and |
| 788 | // the NSSCertificate constructor copies its argument, so |raw_peer_cert| |
| 789 | // must be destroyed in this function. |
| 790 | CERTCertificate* raw_peer_cert = SSL_PeerCertificate(fd); |
| 791 | NSSCertificate peer_cert(raw_peer_cert); |
| 792 | CERT_DestroyCertificate(raw_peer_cert); |
| 793 | |
henrike@webrtc.org | 0e118e7 | 2013-07-10 00:45:36 +0000 | [diff] [blame] | 794 | NSSStreamAdapter *stream = reinterpret_cast<NSSStreamAdapter *>(arg); |
wu@webrtc.org | 2a81a38 | 2014-01-03 22:08:47 +0000 | [diff] [blame] | 795 | stream->cert_ok_ = false; |
| 796 | |
| 797 | // Read the peer's certificate chain. |
| 798 | CERTCertList* cert_list = SSL_PeerCertificateChain(fd); |
| 799 | ASSERT(cert_list != NULL); |
| 800 | |
| 801 | // If the peer provided multiple certificates, check that they form a valid |
| 802 | // chain as defined by RFC 5246 Section 7.4.2: "Each following certificate |
| 803 | // MUST directly certify the one preceding it.". This check does NOT |
| 804 | // verify other requirements, such as whether the chain reaches a trusted |
| 805 | // root, self-signed certificates have valid signatures, certificates are not |
| 806 | // expired, etc. |
| 807 | // Even if the chain is valid, the leaf certificate must still match a |
| 808 | // provided certificate or digest. |
| 809 | if (!NSSCertificate::IsValidChain(cert_list)) { |
| 810 | CERT_DestroyCertList(cert_list); |
| 811 | PORT_SetError(SEC_ERROR_BAD_SIGNATURE); |
| 812 | return SECFailure; |
| 813 | } |
henrike@webrtc.org | 0e118e7 | 2013-07-10 00:45:36 +0000 | [diff] [blame] | 814 | |
| 815 | if (stream->peer_certificate_.get()) { |
| 816 | LOG(LS_INFO) << "Checking against specified certificate"; |
| 817 | |
| 818 | // The peer certificate was specified |
| 819 | if (reinterpret_cast<NSSCertificate *>(stream->peer_certificate_.get())-> |
| 820 | Equals(&peer_cert)) { |
| 821 | LOG(LS_INFO) << "Accepted peer certificate"; |
wu@webrtc.org | 2a81a38 | 2014-01-03 22:08:47 +0000 | [diff] [blame] | 822 | stream->cert_ok_ = true; |
henrike@webrtc.org | 0e118e7 | 2013-07-10 00:45:36 +0000 | [diff] [blame] | 823 | } |
| 824 | } else if (!stream->peer_certificate_digest_algorithm_.empty()) { |
| 825 | LOG(LS_INFO) << "Checking against specified digest"; |
| 826 | // The peer certificate digest was specified |
| 827 | unsigned char digest[64]; // Maximum size |
pbos@webrtc.org | b951827 | 2014-03-07 15:22:04 +0000 | [diff] [blame] | 828 | size_t digest_length; |
henrike@webrtc.org | 0e118e7 | 2013-07-10 00:45:36 +0000 | [diff] [blame] | 829 | |
| 830 | if (!peer_cert.ComputeDigest( |
| 831 | stream->peer_certificate_digest_algorithm_, |
| 832 | digest, sizeof(digest), &digest_length)) { |
| 833 | LOG(LS_ERROR) << "Digest computation failed"; |
| 834 | } else { |
| 835 | Buffer computed_digest(digest, digest_length); |
| 836 | if (computed_digest == stream->peer_certificate_digest_value_) { |
| 837 | LOG(LS_INFO) << "Accepted peer certificate"; |
wu@webrtc.org | 2a81a38 | 2014-01-03 22:08:47 +0000 | [diff] [blame] | 838 | stream->cert_ok_ = true; |
henrike@webrtc.org | 0e118e7 | 2013-07-10 00:45:36 +0000 | [diff] [blame] | 839 | } |
| 840 | } |
| 841 | } else { |
| 842 | // Other modes, but we haven't implemented yet |
| 843 | // TODO(ekr@rtfm.com): Implement real certificate validation |
| 844 | UNIMPLEMENTED; |
| 845 | } |
| 846 | |
wu@webrtc.org | 2a81a38 | 2014-01-03 22:08:47 +0000 | [diff] [blame] | 847 | if (!stream->cert_ok_ && stream->ignore_bad_cert()) { |
henrike@webrtc.org | 0e118e7 | 2013-07-10 00:45:36 +0000 | [diff] [blame] | 848 | LOG(LS_WARNING) << "Ignoring cert error while verifying cert chain"; |
| 849 | stream->cert_ok_ = true; |
henrike@webrtc.org | 0e118e7 | 2013-07-10 00:45:36 +0000 | [diff] [blame] | 850 | } |
| 851 | |
wu@webrtc.org | 2a81a38 | 2014-01-03 22:08:47 +0000 | [diff] [blame] | 852 | if (stream->cert_ok_) |
| 853 | stream->peer_certificate_.reset(new NSSCertificate(cert_list)); |
| 854 | |
| 855 | CERT_DestroyCertList(cert_list); |
| 856 | |
| 857 | if (stream->cert_ok_) |
| 858 | return SECSuccess; |
| 859 | |
henrike@webrtc.org | 0e118e7 | 2013-07-10 00:45:36 +0000 | [diff] [blame] | 860 | PORT_SetError(SEC_ERROR_UNTRUSTED_CERT); |
| 861 | return SECFailure; |
| 862 | } |
| 863 | |
| 864 | |
| 865 | SECStatus NSSStreamAdapter::GetClientAuthDataHook(void *arg, PRFileDesc *fd, |
| 866 | CERTDistNames *caNames, |
| 867 | CERTCertificate **pRetCert, |
| 868 | SECKEYPrivateKey **pRetKey) { |
| 869 | LOG(LS_INFO) << "Client cert requested"; |
| 870 | NSSStreamAdapter *stream = reinterpret_cast<NSSStreamAdapter *>(arg); |
| 871 | |
| 872 | if (!stream->identity_.get()) { |
| 873 | LOG(LS_ERROR) << "No identity available"; |
| 874 | return SECFailure; |
| 875 | } |
| 876 | |
| 877 | NSSIdentity *identity = static_cast<NSSIdentity *>(stream->identity_.get()); |
| 878 | // Destroyed internally by NSS |
| 879 | *pRetCert = CERT_DupCertificate(identity->certificate().certificate()); |
| 880 | *pRetKey = SECKEY_CopyPrivateKey(identity->keypair()->privkey()); |
| 881 | |
| 882 | return SECSuccess; |
| 883 | } |
| 884 | |
| 885 | // RFC 5705 Key Exporter |
| 886 | bool NSSStreamAdapter::ExportKeyingMaterial(const std::string& label, |
| 887 | const uint8* context, |
| 888 | size_t context_len, |
| 889 | bool use_context, |
| 890 | uint8* result, |
| 891 | size_t result_len) { |
jiayl@webrtc.org | 13a42bc | 2014-01-29 17:45:53 +0000 | [diff] [blame] | 892 | SECStatus rv = SSL_ExportKeyingMaterial( |
| 893 | ssl_fd_, |
| 894 | label.c_str(), |
| 895 | checked_cast<unsigned int>(label.size()), |
| 896 | use_context, |
| 897 | context, |
| 898 | checked_cast<unsigned int>(context_len), |
| 899 | result, |
| 900 | checked_cast<unsigned int>(result_len)); |
henrike@webrtc.org | 0e118e7 | 2013-07-10 00:45:36 +0000 | [diff] [blame] | 901 | |
| 902 | return rv == SECSuccess; |
| 903 | } |
| 904 | |
| 905 | bool NSSStreamAdapter::SetDtlsSrtpCiphers( |
| 906 | const std::vector<std::string>& ciphers) { |
| 907 | #ifdef HAVE_DTLS_SRTP |
| 908 | std::vector<PRUint16> internal_ciphers; |
| 909 | if (state_ != SSL_NONE) |
| 910 | return false; |
| 911 | |
| 912 | for (std::vector<std::string>::const_iterator cipher = ciphers.begin(); |
| 913 | cipher != ciphers.end(); ++cipher) { |
| 914 | bool found = false; |
| 915 | for (const SrtpCipherMapEntry *entry = kSrtpCipherMap; entry->cipher_id; |
| 916 | ++entry) { |
| 917 | if (*cipher == entry->external_name) { |
| 918 | found = true; |
| 919 | internal_ciphers.push_back(entry->cipher_id); |
| 920 | break; |
| 921 | } |
| 922 | } |
| 923 | |
| 924 | if (!found) { |
| 925 | LOG(LS_ERROR) << "Could not find cipher: " << *cipher; |
| 926 | return false; |
| 927 | } |
| 928 | } |
| 929 | |
| 930 | if (internal_ciphers.empty()) |
| 931 | return false; |
| 932 | |
| 933 | srtp_ciphers_ = internal_ciphers; |
| 934 | |
| 935 | return true; |
| 936 | #else |
| 937 | return false; |
| 938 | #endif |
| 939 | } |
| 940 | |
| 941 | bool NSSStreamAdapter::GetDtlsSrtpCipher(std::string* cipher) { |
| 942 | #ifdef HAVE_DTLS_SRTP |
| 943 | ASSERT(state_ == SSL_CONNECTED); |
| 944 | if (state_ != SSL_CONNECTED) |
| 945 | return false; |
| 946 | |
| 947 | PRUint16 selected_cipher; |
| 948 | |
| 949 | SECStatus rv = SSL_GetSRTPCipher(ssl_fd_, &selected_cipher); |
| 950 | if (rv == SECFailure) |
| 951 | return false; |
| 952 | |
| 953 | for (const SrtpCipherMapEntry *entry = kSrtpCipherMap; |
| 954 | entry->cipher_id; ++entry) { |
| 955 | if (selected_cipher == entry->cipher_id) { |
| 956 | *cipher = entry->external_name; |
| 957 | return true; |
| 958 | } |
| 959 | } |
| 960 | |
| 961 | ASSERT(false); // This should never happen |
| 962 | #endif |
| 963 | return false; |
| 964 | } |
| 965 | |
| 966 | |
| 967 | bool NSSContext::initialized; |
| 968 | NSSContext *NSSContext::global_nss_context; |
| 969 | |
| 970 | // Static initialization and shutdown |
| 971 | NSSContext *NSSContext::Instance() { |
| 972 | if (!global_nss_context) { |
| 973 | NSSContext *new_ctx = new NSSContext(); |
| 974 | |
| 975 | if (!(new_ctx->slot_ = PK11_GetInternalSlot())) { |
| 976 | delete new_ctx; |
| 977 | goto fail; |
| 978 | } |
| 979 | |
| 980 | global_nss_context = new_ctx; |
| 981 | } |
| 982 | |
| 983 | fail: |
| 984 | return global_nss_context; |
| 985 | } |
| 986 | |
| 987 | |
| 988 | |
| 989 | bool NSSContext::InitializeSSL(VerificationCallback callback) { |
| 990 | ASSERT(!callback); |
| 991 | |
| 992 | if (!initialized) { |
| 993 | SECStatus rv; |
| 994 | |
| 995 | rv = NSS_NoDB_Init(NULL); |
| 996 | if (rv != SECSuccess) { |
| 997 | LOG(LS_ERROR) << "Couldn't initialize NSS error=" << |
| 998 | PORT_GetError(); |
| 999 | return false; |
| 1000 | } |
| 1001 | |
| 1002 | NSS_SetDomesticPolicy(); |
| 1003 | |
| 1004 | initialized = true; |
| 1005 | } |
| 1006 | |
| 1007 | return true; |
| 1008 | } |
| 1009 | |
| 1010 | bool NSSContext::InitializeSSLThread() { |
| 1011 | // Not needed |
| 1012 | return true; |
| 1013 | } |
| 1014 | |
| 1015 | bool NSSContext::CleanupSSL() { |
| 1016 | // Not needed |
| 1017 | return true; |
| 1018 | } |
| 1019 | |
| 1020 | bool NSSStreamAdapter::HaveDtls() { |
| 1021 | return true; |
| 1022 | } |
| 1023 | |
| 1024 | bool NSSStreamAdapter::HaveDtlsSrtp() { |
| 1025 | #ifdef HAVE_DTLS_SRTP |
| 1026 | return true; |
| 1027 | #else |
| 1028 | return false; |
| 1029 | #endif |
| 1030 | } |
| 1031 | |
| 1032 | bool NSSStreamAdapter::HaveExporter() { |
| 1033 | return true; |
| 1034 | } |
| 1035 | |
| 1036 | } // namespace talk_base |
| 1037 | |
| 1038 | #endif // HAVE_NSS_SSL_H |