net/base/connection_type_histograms.h

   1 // Copyright (c) 2009 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_BASE_CONNECTION_TYPE_HISTOGRAMS_H_
   6 #define NET_BASE_CONNECTION_TYPE_HISTOGRAMS_H_
   7
   8 // The UpdateConnectionTypeHistograms function collects statistics related
   9 // to the number of MD5 certificates that our users are encountering.  The
  10 // information will help us decide when it is fine for browsers to stop
  11 // supporting MD5 certificates, in light of the recent MD5 certificate
  12 // collision attack (see "MD5 considered harmful today: Creating a rogue CA
  13 // certificate" at http://www.win.tue.nl/hashclash/rogue-ca/).
  14
  15 namespace net {
  16
  17 enum ConnectionType {
  18   CONNECTION_ANY = 0,      // Any connection (SSL, HTTP, SPDY, etc)
  19   CONNECTION_SSL = 1,      // An SSL connection
  20   // 2 - Reserved - Was CONNECTION_SSL_MD5
  21   // 3 - Reserved - Was CONNECTION_SSL_MD2
  22   // 4 - Reserved - Was CONNECTION_SSL_MD4
  23   // 5 - Reserved - Was CONNECTION_SSL_MD5_CA
  24   // 6 - Reserved - Was CONNECTION_SSL_MD2_CA
  25   CONNECTION_HTTP = 7,     // An HTTP connection
  26   CONNECTION_SPDY = 8,     // A SPDY connection
  27   CONNECTION_SSL_SSL2 = 9,     // An SSL connection that uses SSL 2.0
  28   CONNECTION_SSL_SSL3 = 10,    // An SSL connection that uses SSL 3.0
  29   CONNECTION_SSL_TLS1 = 11,    // An SSL connection that uses TLS 1.0
  30   CONNECTION_SSL_TLS1_1 = 12,  // An SSL connection that uses TLS 1.1
  31   CONNECTION_SSL_TLS1_2 = 13,  // An SSL connection that uses TLS 1.2
  32   NUM_OF_CONNECTION_TYPES
  33 };
  34
  35 // Update the connection type histograms.  |type| is the connection type.
  36 void UpdateConnectionTypeHistograms(ConnectionType type);
  37
  38 }  // namespace net
  39
  40 #endif  // NET_BASE_CONNECTION_TYPE_HISTOGRAMS_H_