1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style license that can be 3 // found in the LICENSE file. 4 5 #ifndef NET_SSL_SSL_CONNECTION_STATUS_FLAGS_H_ 6 #define NET_SSL_SSL_CONNECTION_STATUS_FLAGS_H_ 7 8 namespace net { 9 10 // Status flags for SSLInfo::connection_status. 11 enum { 12 // The lower 16 bits are reserved for the TLS ciphersuite id. 13 SSL_CONNECTION_CIPHERSUITE_SHIFT = 0, 14 SSL_CONNECTION_CIPHERSUITE_MASK = 0xffff, 15 16 // The next two bits are reserved for the compression used. 17 SSL_CONNECTION_COMPRESSION_SHIFT = 16, 18 SSL_CONNECTION_COMPRESSION_MASK = 3, 19 20 // We fell back to an older protocol version for this connection. 21 SSL_CONNECTION_VERSION_FALLBACK = 1 << 18, 22 23 // The server doesn't support the renegotiation_info extension. If this bit 24 // is not set then either the extension isn't supported, or we don't have any 25 // knowledge either way. (The latter case will occur when we use an SSL 26 // library that doesn't report it, like SChannel.) 27 SSL_CONNECTION_NO_RENEGOTIATION_EXTENSION = 1 << 19, 28 29 // The next three bits are reserved for the SSL version. 30 SSL_CONNECTION_VERSION_SHIFT = 20, 31 SSL_CONNECTION_VERSION_MASK = 7, 32 33 // 1 << 31 (the sign bit) is reserved so that the SSL connection status will 34 // never be negative. 35 }; 36 37 // NOTE: the SSL version enum constants must be between 0 and 38 // SSL_CONNECTION_VERSION_MASK, inclusive. 39 enum { 40 SSL_CONNECTION_VERSION_UNKNOWN = 0, // Unknown SSL version. 41 SSL_CONNECTION_VERSION_SSL2 = 1, 42 SSL_CONNECTION_VERSION_SSL3 = 2, 43 SSL_CONNECTION_VERSION_TLS1 = 3, 44 SSL_CONNECTION_VERSION_TLS1_1 = 4, 45 SSL_CONNECTION_VERSION_TLS1_2 = 5, 46 SSL_CONNECTION_VERSION_MAX, 47 }; 48 COMPILE_ASSERT(SSL_CONNECTION_VERSION_MAX - 1 <= SSL_CONNECTION_VERSION_MASK, 49 SSL_CONNECTION_VERSION_MASK_too_small); 50 51 inline int SSLConnectionStatusToCipherSuite(int connection_status) { 52 return (connection_status >> SSL_CONNECTION_CIPHERSUITE_SHIFT) & 53 SSL_CONNECTION_CIPHERSUITE_MASK; 54 } 55 56 inline int SSLConnectionStatusToVersion(int connection_status) { 57 return (connection_status >> SSL_CONNECTION_VERSION_SHIFT) & 58 SSL_CONNECTION_VERSION_MASK; 59 } 60 61 } // namespace net 62 63 #endif // NET_SSL_SSL_CONNECTION_STATUS_FLAGS_H_ 64
