Change WebRTC SslCipher to be exposed as number only.

talk/app/webrtc/webrtcsession.cc

 /*
  * libjingle
  * Copyright 2012 Google Inc.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are met:
  *
  *  1. Redistributions of source code must retain the above copyright notice,
  *     this list of conditions and the following disclaimer.
  *  2. Redistributions in binary form must reproduce the above copyright notice,
@@ skipping 30 matching lines @@
 #include "talk/app/webrtc/webrtcsessiondescriptionfactory.h"
 #include "talk/media/base/constants.h"
 #include "talk/media/base/videocapturer.h"
 #include "talk/session/media/channel.h"
 #include "talk/session/media/channelmanager.h"
 #include "talk/session/media/mediasession.h"
 #include "webrtc/base/basictypes.h"
 #include "webrtc/base/checks.h"
 #include "webrtc/base/helpers.h"
 #include "webrtc/base/logging.h"
+#include "webrtc/base/sslstrings.h"
 #include "webrtc/base/stringencode.h"
 #include "webrtc/base/stringutils.h"
 #include "webrtc/p2p/base/portallocator.h"
 
 using cricket::ContentInfo;
 using cricket::ContentInfos;
 using cricket::MediaContentDescription;
 using cricket::SessionDescription;
 using cricket::TransportInfo;
 
@@ skipping 22 matching lines @@
     "Called with SDP without ice-ufrag and ice-pwd.";
 const char kSessionError[] = "Session error code: ";
 const char kSessionErrorDesc[] = "Session error description: ";
 const char kDtlsSetupFailureRtp[] =
     "Couldn't set up DTLS-SRTP on RTP channel.";
 const char kDtlsSetupFailureRtcp[] =
     "Couldn't set up DTLS-SRTP on RTCP channel.";
 const char kEnableBundleFailed[] = "Failed to enable BUNDLE.";
 const int kMaxUnsignalledRecvStreams = 20;
 
+SrtpCipherType GetSrtpCipherType(const std::string& cipher) {
+  if (cipher == rtc::AES_CM_128_HMAC_SHA1_32_NAME)
+    return SrtpCipher_AES_CM_128_HMAC_SHA1_32;
+  if (cipher == rtc::AES_CM_128_HMAC_SHA1_80_NAME)
+    return SrtpCipher_AES_CM_128_HMAC_SHA1_80;
+  return SrtpCipher_Unknown;
+}
+
 IceCandidatePairType GetIceCandidatePairCounter(
     const cricket::Candidate& local,
     const cricket::Candidate& remote) {
   const auto& l = local.type();
   const auto& r = remote.type();
   const auto& host = LOCAL_PORT_TYPE;
   const auto& srflx = STUN_PORT_TYPE;
   const auto& relay = RELAY_PORT_TYPE;
   const auto& prflx = PRFLX_PORT_TYPE;
   if (l == host && r == host) {
@@ skipping 2031 matching lines @@
 }
 
 void WebRtcSession::ReportNegotiatedCiphers(
     const cricket::TransportStats& stats) {
   RTC_DCHECK(metrics_observer_ != NULL);
   if (!dtls_enabled_ || stats.channel_stats.empty()) {
     return;
   }
 
   const std::string& srtp_cipher = stats.channel_stats[0].srtp_cipher;
-  const std::string& ssl_cipher = stats.channel_stats[0].ssl_cipher;
-  if (srtp_cipher.empty() && ssl_cipher.empty()) {
+  const rtc::SslCipher& ssl_cipher = stats.channel_stats[0].ssl_cipher;
+  if (srtp_cipher.empty() && ssl_cipher.name.empty()) {
     return;
   }
 
-  PeerConnectionMetricsName srtp_name;
-  PeerConnectionMetricsName ssl_name;
+  PeerConnectionEnumCounterType srtp_counter_type;
+  PeerConnectionEnumCounterType ssl_counter_type;
   if (stats.transport_name == cricket::CN_AUDIO) {
-    srtp_name = kAudioSrtpCipher;
-    ssl_name = kAudioSslCipher;
+    srtp_counter_type = kEnumCounterAudioSrtpCipher;
+    ssl_counter_type = kEnumCounterAudioSslCipher;
   } else if (stats.transport_name == cricket::CN_VIDEO) {
-    srtp_name = kVideoSrtpCipher;
-    ssl_name = kVideoSslCipher;
+    srtp_counter_type = kEnumCounterVideoSrtpCipher;
+    ssl_counter_type = kEnumCounterVideoSslCipher;
   } else if (stats.transport_name == cricket::CN_DATA) {
-    srtp_name = kDataSrtpCipher;
-    ssl_name = kDataSslCipher;
+    srtp_counter_type = kEnumCounterDataSrtpCipher;
+    ssl_counter_type = kEnumCounterDataSslCipher;
   } else {
     RTC_NOTREACHED();
     return;
   }
 
   if (!srtp_cipher.empty()) {
-    metrics_observer_->AddHistogramSample(srtp_name, srtp_cipher);
+    metrics_observer_->IncrementEnumCounter(
+        srtp_counter_type, GetSrtpCipherType(srtp_cipher), SrtpCipher_Max);
   }
-  if (!ssl_cipher.empty()) {
-    metrics_observer_->AddHistogramSample(ssl_name, ssl_cipher);
+  if (!ssl_cipher.name.empty()) {
+    RTC_DCHECK(ssl_cipher.ssl_id);
+    metrics_observer_->IncrementSparseEnumCounter(ssl_counter_type,
+                                                  ssl_cipher.ssl_id);
   }
 }
 
 }  // namespace webrtc