commit 258508fce1fb83be41d73370298b98b3eeb64b91
author Steven Valdez <svaldez@google.com> Wed Jan 25 15:47:49 2017 -0500
committer CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org> Thu Jan 26 20:32:00 2017 +0000
tree 2565151103bd54abb01bda39c847cdb7145320c5
parent d103616db14ca9587f074efaf9f09a48b8ca80cb

Adding V2ClientHello counter.

Change-Id: I324743e7d1864fbbb9653209ff93e4da872c8d31
Reviewed-on: https://boringssl-review.googlesource.com/13340
Reviewed-by: David Benjamin <davidben@google.com>
Commit-Queue: David Benjamin <davidben@google.com>
CQ-Verified: CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org>

ssl/handshake_server.c

diff --git a/ssl/handshake_server.c b/ssl/handshake_server.c
index 33ffa7e..e3889bb 100644
--- a/ssl/handshake_server.c
+++ b/ssl/handshake_server.c
@@ -185,6 +185,17 @@
 static int ssl3_get_channel_id(SSL_HANDSHAKE *hs);
 static int ssl3_send_new_session_ticket(SSL_HANDSHAKE *hs);
 
+static struct CRYPTO_STATIC_MUTEX g_v2clienthello_lock =
+    CRYPTO_STATIC_MUTEX_INIT;
+static uint64_t g_v2clienthello_count = 0;
+
+uint64_t SSL_get_v2clienthello_count(void) {
+  CRYPTO_STATIC_MUTEX_lock_read(&g_v2clienthello_lock);
+  uint64_t ret = g_v2clienthello_count;
+  CRYPTO_STATIC_MUTEX_unlock_read(&g_v2clienthello_lock);
+  return ret;
+}
+
 int ssl3_accept(SSL_HANDSHAKE *hs) {
   SSL *const ssl = hs->ssl;
   uint32_t alg_a;
@@ -474,6 +485,12 @@
           ssl->s3->new_session = NULL;
         }
 
+        if (hs->v2_clienthello) {
+          CRYPTO_STATIC_MUTEX_lock_write(&g_v2clienthello_lock);
+          g_v2clienthello_count++;
+          CRYPTO_STATIC_MUTEX_unlock_write(&g_v2clienthello_lock);
+        }
+
         ssl->s3->initial_handshake_complete = 1;
         ssl_update_cache(hs, SSL_SESS_CACHE_SERVER);