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/*
* gnome-keyring
*
* Copyright (C) 2008 Stefan Walter
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation; either version 2.1 of
* the License, or (at your option) any later version.
*
* This program 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
* 02111-1307, USA.
*/
#include "config.h"
#include "egg-libgcrypt.h"
#include "egg-secure-memory.h"
#include <glib.h>
#include <gcrypt.h>
EGG_SECURE_DECLARE (libgcrypt);
static void
log_handler (gpointer unused, int unknown, const gchar *msg, va_list va)
{
/* TODO: Figure out additional arguments */
g_logv ("gcrypt", G_LOG_LEVEL_MESSAGE, msg, va);
}
static int
no_mem_handler (gpointer unused, size_t sz, unsigned int unknown)
{
/* TODO: Figure out additional arguments */
g_error ("couldn't allocate %lu bytes of memory",
(unsigned long int)sz);
return 0;
}
static void
fatal_handler (gpointer unused, int unknown, const gchar *msg)
{
/* TODO: Figure out additional arguments */
g_log ("gcrypt", G_LOG_LEVEL_ERROR, "%s", msg);
}
static int
glib_thread_mutex_init (void **lock)
{
#if GLIB_CHECK_VERSION(2,31,3)
*lock = g_new0 (GMutex, 1);
g_mutex_init (*lock);
#else
*lock = g_mutex_new ();
#endif
return 0;
}
static int
glib_thread_mutex_destroy (void **lock)
{
#if GLIB_CHECK_VERSION(2,31,3)
g_mutex_clear (*lock);
g_free (*lock);
#else
g_mutex_free (*lock);
#endif
return 0;
}
static int
glib_thread_mutex_lock (void **lock)
{
g_mutex_lock (*lock);
return 0;
}
static int
glib_thread_mutex_unlock (void **lock)
{
g_mutex_unlock (*lock);
return 0;
}
static struct gcry_thread_cbs glib_thread_cbs = {
GCRY_THREAD_OPTION_USER, NULL,
glib_thread_mutex_init, glib_thread_mutex_destroy,
glib_thread_mutex_lock, glib_thread_mutex_unlock,
NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL
};
void
egg_libgcrypt_initialize (void)
{
static volatile gsize gcrypt_initialized = 0;
unsigned seed;
if (g_once_init_enter (&gcrypt_initialized)) {
/* Only initialize libgcrypt if it hasn't already been initialized */
if (!gcry_control (GCRYCTL_INITIALIZATION_FINISHED_P)) {
if (g_thread_supported())
gcry_control (GCRYCTL_SET_THREAD_CBS, &glib_thread_cbs);
gcry_check_version (LIBGCRYPT_VERSION);
gcry_set_log_handler (log_handler, NULL);
gcry_set_outofcore_handler (no_mem_handler, NULL);
gcry_set_fatalerror_handler (fatal_handler, NULL);
gcry_set_allocation_handler ((gcry_handler_alloc_t)g_malloc,
(gcry_handler_alloc_t)egg_secure_alloc,
egg_secure_check,
(gcry_handler_realloc_t)egg_secure_realloc,
egg_secure_free);
gcry_control (GCRYCTL_INITIALIZATION_FINISHED, 0);
}
gcry_create_nonce (&seed, sizeof (seed));
srand (seed);
g_once_init_leave (&gcrypt_initialized, 1);
}
}
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