4 * Copyright (C) 2008 Stefan Walter
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU Lesser General Public License as
8 * published by the Free Software Foundation; either version 2.1 of
9 * the License, or (at your option) any later version.
11 * This program is distributed in the hope that it will be useful, but
12 * WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Lesser General Public License for more details.
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with this program; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
21 * Author: Stef Walter <stefw@thewalter.net>
26 #include "egg-libgcrypt.h"
27 #include "egg-secure-memory.h"
33 EGG_SECURE_DECLARE (libgcrypt);
36 log_handler (gpointer unused, int unknown, const gchar *msg, va_list va)
38 /* TODO: Figure out additional arguments */
39 g_logv ("gcrypt", G_LOG_LEVEL_MESSAGE, msg, va);
43 no_mem_handler (gpointer unused, size_t sz, unsigned int unknown)
45 /* TODO: Figure out additional arguments */
46 g_error ("couldn't allocate %lu bytes of memory",
47 (unsigned long int)sz);
52 fatal_handler (gpointer unused, int unknown, const gchar *msg)
54 /* TODO: Figure out additional arguments */
55 g_log ("gcrypt", G_LOG_LEVEL_ERROR, "%s", msg);
59 glib_thread_mutex_init (void **lock)
61 *lock = g_slice_new (GMutex);
67 glib_thread_mutex_destroy (void **lock)
69 g_mutex_clear (*lock);
70 g_slice_free (GMutex, *lock);
75 glib_thread_mutex_lock (void **lock)
82 glib_thread_mutex_unlock (void **lock)
84 g_mutex_unlock (*lock);
88 static struct gcry_thread_cbs glib_thread_cbs = {
89 GCRY_THREAD_OPTION_USER, NULL,
90 glib_thread_mutex_init, glib_thread_mutex_destroy,
91 glib_thread_mutex_lock, glib_thread_mutex_unlock,
92 NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL
96 egg_libgcrypt_initialize (void)
98 static volatile gsize gcrypt_initialized = 0;
101 if (g_once_init_enter (&gcrypt_initialized)) {
103 /* Only initialize libgcrypt if it hasn't already been initialized */
104 if (!gcry_control (GCRYCTL_INITIALIZATION_FINISHED_P)) {
105 gcry_control (GCRYCTL_SET_THREAD_CBS, &glib_thread_cbs);
106 gcry_check_version (LIBGCRYPT_VERSION);
107 gcry_set_log_handler (log_handler, NULL);
108 gcry_set_outofcore_handler (no_mem_handler, NULL);
109 gcry_set_fatalerror_handler (fatal_handler, NULL);
110 gcry_set_allocation_handler ((gcry_handler_alloc_t)g_malloc,
111 (gcry_handler_alloc_t)egg_secure_alloc,
113 (gcry_handler_realloc_t)egg_secure_realloc,
115 gcry_control (GCRYCTL_INITIALIZATION_FINISHED, 0);
118 gcry_create_nonce (&seed, sizeof (seed));
121 g_once_init_leave (&gcrypt_initialized, 1);