1 files changed, 36 insertions, 9 deletions

diff --git a/src/util/crypto_random.c b/src/util/crypto_random.c
index d5b5eb9ec..df6d3fb9b 100644
--- a/src/util/crypto_random.c
+++ b/src/util/crypto_random.c
@@ -2,20 +2,18 @@
      This file is part of GNUnet.  Copyright (C) 2001-2014 Christian Grothoff
      (and other contributing authors)
 
-     GNUnet is free software; you can redistribute it and/or modify
-     it under the terms of the GNU General Public License as published
-     by the Free Software Foundation; either version 3, or (at your
-     option) any later version.
+     GNUnet is free software: you can redistribute it and/or modify it
+     under the terms of the GNU Affero General Public License as published
+     by the Free Software Foundation, either version 3 of the License,
+     or (at your option) any later version.
 
      GNUnet is distributed in the hope that it will be useful, but
      WITHOUT ANY WARRANTY; without even the implied warranty of
      MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-     General Public License for more details.
+     Affero General Public License for more details.
 
-     You should have received a copy of the GNU General Public License
-     along with GNUnet; see the file COPYING.  If not, write to the
-     Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
-     Boston, MA 02110-1301, USA.
+     You should have received a copy of the GNU Affero General Public License
+     along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
 */
 
@@ -271,6 +269,28 @@ GNUNET_CRYPTO_random_u64 (enum GNUNET_CRYPTO_Quality mode, uint64_t max)
 
 
 /**
+ * Allocation wrapper for libgcrypt, used to avoid bad locking
+ * strategy of libgcrypt implementation.
+ */
+static void *
+w_malloc (size_t n)
+{
+  return calloc (n, 1);
+}
+
+
+/**
+ * Allocation wrapper for libgcrypt, used to avoid bad locking
+ * strategy of libgcrypt implementation.
+ */
+static int
+w_check (const void *p)
+{
+  return 0; /* not secure memory */
+}
+
+
+/**
  * Initialize libgcrypt.
  */
 void __attribute__ ((constructor))
@@ -285,6 +305,13 @@ GNUNET_CRYPTO_random_init ()
              NEED_LIBGCRYPT_VERSION);
     GNUNET_assert (0);
   }
+  /* set custom allocators */
+  gcry_set_allocation_handler (&w_malloc,
+                               &w_malloc,
+                               &w_check,
+                               &realloc,
+                               &free);
+  /* Disable use of secure memory */
   if ((rc = gcry_control (GCRYCTL_DISABLE_SECMEM, 0)))
     FPRINTF (stderr,
              "Failed to set libgcrypt option %s: %s\n",