| // Copyright 2014 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #include "net/socket/openssl_ssl_util.h" |
| |
| #include <openssl/err.h> |
| #include <openssl/ssl.h> |
| |
| #include "base/logging.h" |
| #include "crypto/openssl_util.h" |
| #include "net/base/net_errors.h" |
| |
| namespace net { |
| |
| SslSetClearMask::SslSetClearMask() |
| : set_mask(0), |
| clear_mask(0) { |
| } |
| |
| void SslSetClearMask::ConfigureFlag(long flag, bool state) { |
| (state ? set_mask : clear_mask) |= flag; |
| // Make sure we haven't got any intersection in the set & clear options. |
| DCHECK_EQ(0, set_mask & clear_mask) << flag << ":" << state; |
| } |
| |
| namespace { |
| |
| int MapOpenSSLErrorSSL() { |
| // Walk down the error stack to find the SSLerr generated reason. |
| unsigned long error_code; |
| do { |
| error_code = ERR_get_error(); |
| if (error_code == 0) |
| return ERR_SSL_PROTOCOL_ERROR; |
| } while (ERR_GET_LIB(error_code) != ERR_LIB_SSL); |
| |
| DVLOG(1) << "OpenSSL SSL error, reason: " << ERR_GET_REASON(error_code) |
| << ", name: " << ERR_error_string(error_code, NULL); |
| switch (ERR_GET_REASON(error_code)) { |
| case SSL_R_READ_TIMEOUT_EXPIRED: |
| return ERR_TIMED_OUT; |
| case SSL_R_BAD_RESPONSE_ARGUMENT: |
| return ERR_INVALID_ARGUMENT; |
| case SSL_R_UNKNOWN_CERTIFICATE_TYPE: |
| case SSL_R_UNKNOWN_CIPHER_TYPE: |
| case SSL_R_UNKNOWN_KEY_EXCHANGE_TYPE: |
| case SSL_R_UNKNOWN_PKEY_TYPE: |
| case SSL_R_UNKNOWN_REMOTE_ERROR_TYPE: |
| case SSL_R_UNKNOWN_SSL_VERSION: |
| return ERR_NOT_IMPLEMENTED; |
| case SSL_R_UNSUPPORTED_SSL_VERSION: |
| case SSL_R_NO_CIPHER_MATCH: |
| case SSL_R_NO_SHARED_CIPHER: |
| case SSL_R_TLSV1_ALERT_INSUFFICIENT_SECURITY: |
| case SSL_R_TLSV1_ALERT_PROTOCOL_VERSION: |
| case SSL_R_UNSUPPORTED_PROTOCOL: |
| return ERR_SSL_VERSION_OR_CIPHER_MISMATCH; |
| case SSL_R_SSLV3_ALERT_BAD_CERTIFICATE: |
| case SSL_R_SSLV3_ALERT_UNSUPPORTED_CERTIFICATE: |
| case SSL_R_SSLV3_ALERT_CERTIFICATE_REVOKED: |
| case SSL_R_SSLV3_ALERT_CERTIFICATE_EXPIRED: |
| case SSL_R_SSLV3_ALERT_CERTIFICATE_UNKNOWN: |
| case SSL_R_TLSV1_ALERT_ACCESS_DENIED: |
| case SSL_R_TLSV1_ALERT_UNKNOWN_CA: |
| return ERR_BAD_SSL_CLIENT_AUTH_CERT; |
| case SSL_R_BAD_DECOMPRESSION: |
| case SSL_R_SSLV3_ALERT_DECOMPRESSION_FAILURE: |
| return ERR_SSL_DECOMPRESSION_FAILURE_ALERT; |
| case SSL_R_SSLV3_ALERT_BAD_RECORD_MAC: |
| return ERR_SSL_BAD_RECORD_MAC_ALERT; |
| case SSL_R_TLSV1_ALERT_DECRYPT_ERROR: |
| return ERR_SSL_DECRYPT_ERROR_ALERT; |
| case SSL_R_TLSV1_UNRECOGNIZED_NAME: |
| return ERR_SSL_UNRECOGNIZED_NAME_ALERT; |
| case SSL_R_UNSAFE_LEGACY_RENEGOTIATION_DISABLED: |
| return ERR_SSL_UNSAFE_NEGOTIATION; |
| case SSL_R_WRONG_NUMBER_OF_KEY_BITS: |
| return ERR_SSL_WEAK_SERVER_EPHEMERAL_DH_KEY; |
| // SSL_R_UNKNOWN_PROTOCOL is reported if premature application data is |
| // received (see http://crbug.com/42538), and also if all the protocol |
| // versions supported by the server were disabled in this socket instance. |
| // Mapped to ERR_SSL_PROTOCOL_ERROR for compatibility with other SSL sockets |
| // in the former scenario. |
| case SSL_R_UNKNOWN_PROTOCOL: |
| case SSL_R_SSL_HANDSHAKE_FAILURE: |
| case SSL_R_DECRYPTION_FAILED: |
| case SSL_R_DECRYPTION_FAILED_OR_BAD_RECORD_MAC: |
| case SSL_R_DH_PUBLIC_VALUE_LENGTH_IS_WRONG: |
| case SSL_R_DIGEST_CHECK_FAILED: |
| case SSL_R_DUPLICATE_COMPRESSION_ID: |
| case SSL_R_ECGROUP_TOO_LARGE_FOR_CIPHER: |
| case SSL_R_ENCRYPTED_LENGTH_TOO_LONG: |
| case SSL_R_ERROR_IN_RECEIVED_CIPHER_LIST: |
| case SSL_R_EXCESSIVE_MESSAGE_SIZE: |
| case SSL_R_EXTRA_DATA_IN_MESSAGE: |
| case SSL_R_GOT_A_FIN_BEFORE_A_CCS: |
| case SSL_R_ILLEGAL_PADDING: |
| case SSL_R_INVALID_CHALLENGE_LENGTH: |
| case SSL_R_INVALID_COMMAND: |
| case SSL_R_INVALID_PURPOSE: |
| case SSL_R_INVALID_STATUS_RESPONSE: |
| case SSL_R_INVALID_TICKET_KEYS_LENGTH: |
| case SSL_R_KEY_ARG_TOO_LONG: |
| case SSL_R_READ_WRONG_PACKET_TYPE: |
| // SSL_do_handshake reports this error when the server responds to a |
| // ClientHello with a fatal close_notify alert. |
| case SSL_AD_REASON_OFFSET + SSL_AD_CLOSE_NOTIFY: |
| case SSL_R_SSLV3_ALERT_UNEXPECTED_MESSAGE: |
| // TODO(joth): SSL_R_SSLV3_ALERT_HANDSHAKE_FAILURE may be returned from the |
| // server after receiving ClientHello if there's no common supported cipher. |
| // Ideally we'd map that specific case to ERR_SSL_VERSION_OR_CIPHER_MISMATCH |
| // to match the NSS implementation. See also http://goo.gl/oMtZW |
| case SSL_R_SSLV3_ALERT_HANDSHAKE_FAILURE: |
| case SSL_R_SSLV3_ALERT_NO_CERTIFICATE: |
| case SSL_R_SSLV3_ALERT_ILLEGAL_PARAMETER: |
| case SSL_R_TLSV1_ALERT_DECODE_ERROR: |
| case SSL_R_TLSV1_ALERT_DECRYPTION_FAILED: |
| case SSL_R_TLSV1_ALERT_EXPORT_RESTRICTION: |
| case SSL_R_TLSV1_ALERT_INTERNAL_ERROR: |
| case SSL_R_TLSV1_ALERT_NO_RENEGOTIATION: |
| case SSL_R_TLSV1_ALERT_RECORD_OVERFLOW: |
| case SSL_R_TLSV1_ALERT_USER_CANCELLED: |
| return ERR_SSL_PROTOCOL_ERROR; |
| case SSL_R_CERTIFICATE_VERIFY_FAILED: |
| // The only way that the certificate verify callback can fail is if |
| // the leaf certificate changed during a renegotiation. |
| return ERR_SSL_SERVER_CERT_CHANGED; |
| default: |
| LOG(WARNING) << "Unmapped error reason: " << ERR_GET_REASON(error_code); |
| return ERR_FAILED; |
| } |
| } |
| |
| } // namespace |
| |
| int MapOpenSSLError(int err, const crypto::OpenSSLErrStackTracer& tracer) { |
| switch (err) { |
| case SSL_ERROR_WANT_READ: |
| case SSL_ERROR_WANT_WRITE: |
| return ERR_IO_PENDING; |
| case SSL_ERROR_SYSCALL: |
| LOG(ERROR) << "OpenSSL SYSCALL error, earliest error code in " |
| "error queue: " << ERR_peek_error() << ", errno: " |
| << errno; |
| return ERR_SSL_PROTOCOL_ERROR; |
| case SSL_ERROR_SSL: |
| return MapOpenSSLErrorSSL(); |
| default: |
| // TODO(joth): Implement full mapping. |
| LOG(WARNING) << "Unknown OpenSSL error " << err; |
| return ERR_SSL_PROTOCOL_ERROR; |
| } |
| } |
| |
| } // namespace net |