henrike@webrtc.org | f7795df | 2014-05-13 18:00:26 +0000 | [diff] [blame^] | 1 | /* |
| 2 | * Copyright 2004 The WebRTC Project Authors. All rights reserved. |
| 3 | * |
| 4 | * Use of this source code is governed by a BSD-style license |
| 5 | * that can be found in the LICENSE file in the root of the source |
| 6 | * tree. An additional intellectual property rights grant can be found |
| 7 | * in the file PATENTS. All contributing project authors may |
| 8 | * be found in the AUTHORS file in the root of the source tree. |
| 9 | */ |
| 10 | |
| 11 | |
| 12 | #include <vector> |
| 13 | |
| 14 | #if HAVE_CONFIG_H |
| 15 | #include "config.h" |
| 16 | #endif // HAVE_CONFIG_H |
| 17 | |
| 18 | #include "webrtc/base/sslstreamadapterhelper.h" |
| 19 | |
| 20 | #include "webrtc/base/common.h" |
| 21 | #include "webrtc/base/logging.h" |
| 22 | #include "webrtc/base/stream.h" |
| 23 | |
| 24 | namespace rtc { |
| 25 | |
| 26 | void SSLStreamAdapterHelper::SetIdentity(SSLIdentity* identity) { |
| 27 | ASSERT(identity_.get() == NULL); |
| 28 | identity_.reset(identity); |
| 29 | } |
| 30 | |
| 31 | void SSLStreamAdapterHelper::SetServerRole(SSLRole role) { |
| 32 | role_ = role; |
| 33 | } |
| 34 | |
| 35 | int SSLStreamAdapterHelper::StartSSLWithServer(const char* server_name) { |
| 36 | ASSERT(server_name != NULL && server_name[0] != '\0'); |
| 37 | ssl_server_name_ = server_name; |
| 38 | return StartSSL(); |
| 39 | } |
| 40 | |
| 41 | int SSLStreamAdapterHelper::StartSSLWithPeer() { |
| 42 | ASSERT(ssl_server_name_.empty()); |
| 43 | // It is permitted to specify peer_certificate_ only later. |
| 44 | return StartSSL(); |
| 45 | } |
| 46 | |
| 47 | void SSLStreamAdapterHelper::SetMode(SSLMode mode) { |
| 48 | ASSERT(state_ == SSL_NONE); |
| 49 | ssl_mode_ = mode; |
| 50 | } |
| 51 | |
| 52 | StreamState SSLStreamAdapterHelper::GetState() const { |
| 53 | switch (state_) { |
| 54 | case SSL_WAIT: |
| 55 | case SSL_CONNECTING: |
| 56 | return SS_OPENING; |
| 57 | case SSL_CONNECTED: |
| 58 | return SS_OPEN; |
| 59 | default: |
| 60 | return SS_CLOSED; |
| 61 | }; |
| 62 | // not reached |
| 63 | } |
| 64 | |
| 65 | bool SSLStreamAdapterHelper::GetPeerCertificate(SSLCertificate** cert) const { |
| 66 | if (!peer_certificate_) |
| 67 | return false; |
| 68 | |
| 69 | *cert = peer_certificate_->GetReference(); |
| 70 | return true; |
| 71 | } |
| 72 | |
| 73 | bool SSLStreamAdapterHelper::SetPeerCertificateDigest( |
| 74 | const std::string &digest_alg, |
| 75 | const unsigned char* digest_val, |
| 76 | size_t digest_len) { |
| 77 | ASSERT(peer_certificate_.get() == NULL); |
| 78 | ASSERT(peer_certificate_digest_algorithm_.empty()); |
| 79 | ASSERT(ssl_server_name_.empty()); |
| 80 | size_t expected_len; |
| 81 | |
| 82 | if (!GetDigestLength(digest_alg, &expected_len)) { |
| 83 | LOG(LS_WARNING) << "Unknown digest algorithm: " << digest_alg; |
| 84 | return false; |
| 85 | } |
| 86 | if (expected_len != digest_len) |
| 87 | return false; |
| 88 | |
| 89 | peer_certificate_digest_value_.SetData(digest_val, digest_len); |
| 90 | peer_certificate_digest_algorithm_ = digest_alg; |
| 91 | |
| 92 | return true; |
| 93 | } |
| 94 | |
| 95 | void SSLStreamAdapterHelper::Error(const char* context, int err, bool signal) { |
| 96 | LOG(LS_WARNING) << "SSLStreamAdapterHelper::Error(" |
| 97 | << context << ", " << err << "," << signal << ")"; |
| 98 | state_ = SSL_ERROR; |
| 99 | ssl_error_code_ = err; |
| 100 | Cleanup(); |
| 101 | if (signal) |
| 102 | StreamAdapterInterface::OnEvent(stream(), SE_CLOSE, err); |
| 103 | } |
| 104 | |
| 105 | void SSLStreamAdapterHelper::Close() { |
| 106 | Cleanup(); |
| 107 | ASSERT(state_ == SSL_CLOSED || state_ == SSL_ERROR); |
| 108 | StreamAdapterInterface::Close(); |
| 109 | } |
| 110 | |
| 111 | int SSLStreamAdapterHelper::StartSSL() { |
| 112 | ASSERT(state_ == SSL_NONE); |
| 113 | |
| 114 | if (StreamAdapterInterface::GetState() != SS_OPEN) { |
| 115 | state_ = SSL_WAIT; |
| 116 | return 0; |
| 117 | } |
| 118 | |
| 119 | state_ = SSL_CONNECTING; |
| 120 | int err = BeginSSL(); |
| 121 | if (err) { |
| 122 | Error("BeginSSL", err, false); |
| 123 | return err; |
| 124 | } |
| 125 | |
| 126 | return 0; |
| 127 | } |
| 128 | |
| 129 | } // namespace rtc |
| 130 | |