/*
* Sylpheed -- a GTK+ based, lightweight, and fast e-mail client
- * Copyright (C) 1999-2006 Hiroyuki Yamamoto and the Sylpheed-Claws team
+ * Copyright (C) 1999-2007 Hiroyuki Yamamoto and the Claws Mail team
*
* This program 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 2 of the License, or
+ * the Free Software Foundation; either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ *
*/
#ifdef HAVE_CONFIG_H
# include "config.h"
#endif
-#if USE_OPENSSL
-
+#if (defined(USE_OPENSSL) || defined (USE_GNUTLS))
#include "defs.h"
#include <glib.h>
#include <glib/gi18n.h>
-#include "sylpheed.h"
+#include "claws.h"
#include "utils.h"
#include "ssl.h"
#include "ssl_certificate.h"
+#include "hooks.h"
#ifdef HAVE_LIBETPAN
#include <libetpan/mailstream_ssl.h>
#ifdef USE_PTHREAD
typedef struct _thread_data {
+#ifdef USE_OPENSSL
SSL *ssl;
+#else
+ gnutls_session ssl;
+#endif
gboolean done;
} thread_data;
#endif
+#ifdef USE_OPENSSL
static SSL_CTX *ssl_ctx;
+#endif
+
+#ifdef USE_OPENSSL
+static int openssl_client_cert_cb(SSL *ssl, X509 **x509, EVP_PKEY **pkey)
+{
+ SSLClientCertHookData hookdata;
+ SockInfo *sockinfo = (SockInfo *)SSL_CTX_get_app_data(ssl->ctx);
+
+ if (x509 == NULL || pkey == NULL) {
+ return 0;
+ }
+
+ if (sockinfo == NULL)
+ return 0;
+
+ hookdata.account = sockinfo->account;
+ hookdata.cert_path = NULL;
+ hookdata.password = NULL;
+ hookdata.is_smtp = sockinfo->is_smtp;
+ hooks_invoke(SSLCERT_GET_CLIENT_CERT_HOOKLIST, &hookdata);
+
+ if (hookdata.cert_path == NULL)
+ return 0;
+
+ *x509 = ssl_certificate_get_x509_from_pem_file(hookdata.cert_path);
+ *pkey = ssl_certificate_get_pkey_from_pem_file(hookdata.cert_path);
+ if (!(*x509 && *pkey)) {
+ /* try pkcs12 format */
+ ssl_certificate_get_x509_and_pkey_from_p12_file(hookdata.cert_path, hookdata.password, x509, pkey);
+ }
+ if (*x509 && *pkey)
+ return 1;
+ else
+ return 0;
+}
+#endif
+#ifdef USE_GNUTLS
+static int gnutls_client_cert_cb(gnutls_session session,
+ const gnutls_datum *req_ca_rdn, int nreqs,
+ const gnutls_pk_algorithm *sign_algos,
+ int sign_algos_length, gnutls_retr_st *st)
+{
+ SSLClientCertHookData hookdata;
+ SockInfo *sockinfo = (SockInfo *)gnutls_session_get_ptr(session);
+ gnutls_certificate_type type = gnutls_certificate_type_get(session);
+ gnutls_x509_crt crt;
+ gnutls_x509_privkey key;
+
+ st->ncerts = 0;
+
+ hookdata.account = sockinfo->account;
+ hookdata.cert_path = NULL;
+ hookdata.password = NULL;
+ hookdata.is_smtp = sockinfo->is_smtp;
+ hooks_invoke(SSLCERT_GET_CLIENT_CERT_HOOKLIST, &hookdata);
+
+ if (hookdata.cert_path == NULL)
+ return 0;
+
+ sockinfo->client_crt = ssl_certificate_get_x509_from_pem_file(hookdata.cert_path);
+ sockinfo->client_key = ssl_certificate_get_pkey_from_pem_file(hookdata.cert_path);
+ if (!(sockinfo->client_crt && sockinfo->client_key)) {
+ /* try pkcs12 format */
+ ssl_certificate_get_x509_and_pkey_from_p12_file(hookdata.cert_path, hookdata.password,
+ &crt, &key);
+ sockinfo->client_crt = crt;
+ sockinfo->client_key = key;
+ }
+
+ if (type == GNUTLS_CRT_X509 && sockinfo->client_crt && sockinfo->client_key) {
+ st->ncerts = 1;
+ st->type = type;
+ st->cert.x509 = &(sockinfo->client_crt);
+ st->key.x509 = sockinfo->client_key;
+ st->deinit_all = 0;
+ return 0;
+ }
+ return 0;
+}
+#endif
+
+#ifdef USE_OPENSSL
+SSL_CTX *ssl_get_ctx(void)
+{
+ return ssl_ctx;
+}
+#endif
+
+const gchar *claws_ssl_get_cert_file(void)
+{
+ const char *cert_files[]={
+ "/etc/pki/tls/certs/ca-bundle.crt",
+ "/etc/certs/ca-bundle.crt",
+ "/usr/share/ssl/certs/ca-bundle.crt",
+ "/etc/ssl/certs/ca-certificates.crt",
+ "/usr/local/ssl/certs/ca-bundle.crt",
+ "/etc/apache/ssl.crt/ca-bundle.crt",
+ "/usr/share/curl/curl-ca-bundle.crt",
+ "/usr/share/curl/curl-ca-bundle.crt",
+ "/usr/lib/ssl/cert.pem",
+ NULL};
+ int i;
+
+ if (g_getenv("SSL_CERT_FILE"))
+ return g_getenv("SSL_CERT_FILE");
+#ifndef G_OS_WIN32
+ for (i = 0; cert_files[i]; i++) {
+ if (is_file_exist(cert_files[i]))
+ return cert_files[i];
+ }
+ return NULL;
+#else
+ return "put_what_s_needed_here";
+#endif
+}
+
+const gchar *claws_ssl_get_cert_dir(void)
+{
+ const char *cert_dirs[]={
+ "/etc/pki/tls/certs",
+ "/etc/certs",
+ "/usr/share/ssl/certs",
+ "/etc/ssl/certs",
+ "/usr/local/ssl/certs",
+ "/etc/apache/ssl.crt",
+ "/usr/share/curl",
+ "/usr/lib/ssl/certs",
+ NULL};
+ int i;
+
+ if (g_getenv("SSL_CERT_DIR"))
+ return g_getenv("SSL_CERT_DIR");
+#ifndef G_OS_WIN32
+ for (i = 0; cert_dirs[i]; i++) {
+ if (is_dir_exist(cert_dirs[i]))
+ return cert_dirs[i];
+ }
+ return NULL;
+#else
+ return "put_what_s_needed_here";
+#endif
+}
void ssl_init(void)
{
+#ifdef USE_OPENSSL
SSL_METHOD *meth;
/* Global system initialization*/
SSL_library_init();
SSL_load_error_strings();
+ OpenSSL_add_all_algorithms();
+ OpenSSL_add_all_ciphers();
+ OpenSSL_add_all_digests();
#ifdef HAVE_LIBETPAN
mailstream_openssl_init_not_required();
meth = SSLv23_client_method();
ssl_ctx = SSL_CTX_new(meth);
- /* Set default certificate paths */
- SSL_CTX_set_default_verify_paths(ssl_ctx);
+ SSL_CTX_set_client_cert_cb(ssl_ctx, openssl_client_cert_cb);
+
+ /* Set default certificate paths */
+ if (claws_ssl_get_cert_file() || claws_ssl_get_cert_dir()) {
+ int r = SSL_CTX_load_verify_locations(ssl_ctx, claws_ssl_get_cert_file(), claws_ssl_get_cert_dir());
+ if (r != 1) {
+ g_warning("can't set cert file %s dir %s: %s\n",
+ claws_ssl_get_cert_file(), claws_ssl_get_cert_dir(), ERR_error_string(ERR_get_error(), NULL));
+ SSL_CTX_set_default_verify_paths(ssl_ctx);
+ }
+ } else {
+ g_warning("cant");
+ SSL_CTX_set_default_verify_paths(ssl_ctx);
+ }
#if (OPENSSL_VERSION_NUMBER < 0x0090600fL)
SSL_CTX_set_verify_depth(ssl_ctx,1);
#endif
+#else
+ gnutls_global_init();
+#endif
}
void ssl_done(void)
{
+#if USE_OPENSSL
if (!ssl_ctx)
return;
SSL_CTX_free(ssl_ctx);
+#else
+ gnutls_global_deinit();
+#endif
}
#ifdef USE_PTHREAD
-void *SSL_connect_thread(void *data)
+static void *SSL_connect_thread(void *data)
{
thread_data *td = (thread_data *)data;
- int result = SSL_connect(td->ssl);
+ int result = -1;
+
+ pthread_setcancelstate(PTHREAD_CANCEL_ENABLE, NULL);
+ pthread_setcanceltype(PTHREAD_CANCEL_ASYNCHRONOUS, NULL);
+
+#ifdef USE_OPENSSL
+ result = SSL_connect(td->ssl);
+#else
+ do {
+ result = gnutls_handshake(td->ssl);
+ } while (result == GNUTLS_E_AGAIN || result == GNUTLS_E_INTERRUPTED);
+#endif
td->done = TRUE; /* let the caller thread join() */
return GINT_TO_POINTER(result);
}
#endif
-gint SSL_connect_nb(SSL *ssl)
+#ifdef USE_OPENSSL
+static gint SSL_connect_nb(SSL *ssl)
+#else
+static gint SSL_connect_nb(gnutls_session ssl)
+#endif
{
-#if (defined USE_PTHREAD && defined __GLIBC__ && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 3)))
+#ifdef USE_GNUTLS
+ int result;
+#endif
+#ifdef USE_PTHREAD
thread_data *td = g_new0(thread_data, 1);
pthread_t pt;
+ pthread_attr_t pta;
void *res = NULL;
+ time_t start_time = time(NULL);
+ gboolean killed = FALSE;
td->ssl = ssl;
td->done = FALSE;
/* try to create a thread to initialize the SSL connection,
* fallback to blocking method in case of problem
*/
- if (pthread_create(&pt, PTHREAD_CREATE_JOINABLE,
- SSL_connect_thread, td) != 0)
+ if (pthread_attr_init(&pta) != 0 ||
+ pthread_attr_setdetachstate(&pta, PTHREAD_CREATE_JOINABLE) != 0 ||
+ pthread_create(&pt, &pta, SSL_connect_thread, td) != 0) {
+#ifdef USE_OPENSSL
return SSL_connect(ssl);
-
+#else
+ do {
+ result = gnutls_handshake(td->ssl);
+ } while (result == GNUTLS_E_AGAIN || result == GNUTLS_E_INTERRUPTED);
+ return result;
+#endif
+ }
debug_print("waiting for SSL_connect thread...\n");
while(!td->done) {
/* don't let the interface freeze while waiting */
- sylpheed_do_idle();
+ claws_do_idle();
+ if (time(NULL) - start_time > 30) {
+ pthread_cancel(pt);
+ td->done = TRUE;
+ killed = TRUE;
+ }
}
/* get the thread's return value and clean its resources */
pthread_join(pt, &res);
g_free(td);
-
+
+ if (killed) {
+ res = GINT_TO_POINTER(-1);
+ }
debug_print("SSL_connect thread returned %d\n",
GPOINTER_TO_INT(res));
return GPOINTER_TO_INT(res);
-#else
+#else /* USE_PTHREAD */
+#ifdef USE_OPENSSL
return SSL_connect(ssl);
+#else
+ do {
+ result = gnutls_handshake(ssl);
+ } while (result == GNUTLS_E_AGAIN || result == GNUTLS_E_INTERRUPTED);
+#endif
#endif
}
gboolean ssl_init_socket_with_method(SockInfo *sockinfo, SSLMethod method)
{
+#ifdef USE_OPENSSL
X509 *server_cert;
SSL *ssl;
break;
}
+ SSL_CTX_set_app_data(ssl_ctx, sockinfo);
SSL_set_fd(ssl, sockinfo->sock);
if (SSL_connect_nb(ssl) == -1) {
g_warning(_("SSL connect failed (%s)\n"),
}
- if (!ssl_certificate_check(server_cert, sockinfo->hostname, sockinfo->port)) {
+ if (!ssl_certificate_check(server_cert, sockinfo->canonical_name, sockinfo->hostname, sockinfo->port)) {
X509_free(server_cert);
SSL_free(ssl);
return FALSE;
X509_free(server_cert);
sockinfo->ssl = ssl;
+
+#else
+ gnutls_session session;
+ int r;
+ const int cipher_prio[] = { GNUTLS_CIPHER_AES_128_CBC,
+ GNUTLS_CIPHER_3DES_CBC,
+ GNUTLS_CIPHER_AES_256_CBC,
+ GNUTLS_CIPHER_ARCFOUR_128, 0 };
+ const int kx_prio[] = { GNUTLS_KX_DHE_RSA,
+ GNUTLS_KX_RSA,
+ GNUTLS_KX_DHE_DSS, 0 };
+ const int mac_prio[] = { GNUTLS_MAC_SHA1,
+ GNUTLS_MAC_MD5, 0 };
+ const int proto_prio[] = { GNUTLS_TLS1,
+ GNUTLS_SSL3, 0 };
+ const gnutls_datum *raw_cert_list;
+ unsigned int raw_cert_list_length;
+ gnutls_x509_crt cert = NULL;
+ guint status;
+ gnutls_certificate_credentials_t xcred;
+
+ if (gnutls_certificate_allocate_credentials (&xcred) != 0)
+ return FALSE;
+
+ r = gnutls_init(&session, GNUTLS_CLIENT);
+ if (session == NULL || r != 0)
+ return FALSE;
+
+ gnutls_set_default_priority(session);
+ gnutls_protocol_set_priority (session, proto_prio);
+ gnutls_cipher_set_priority (session, cipher_prio);
+ gnutls_kx_set_priority (session, kx_prio);
+ gnutls_mac_set_priority (session, mac_prio);
+
+ gnutls_credentials_set(session, GNUTLS_CRD_CERTIFICATE, xcred);
+
+ if (claws_ssl_get_cert_file()) {
+ r = gnutls_certificate_set_x509_trust_file(xcred, claws_ssl_get_cert_file(), GNUTLS_X509_FMT_PEM);
+ if (r < 0)
+ g_warning("Can't read SSL_CERT_FILE %s: %s\n",
+ claws_ssl_get_cert_file(),
+ gnutls_strerror(r));
+ } else {
+ debug_print("Can't find SSL ca-certificates file\n");
+ }
+ gnutls_certificate_set_verify_flags (xcred, GNUTLS_VERIFY_ALLOW_X509_V1_CA_CRT);
+
+ gnutls_transport_set_ptr(session, (gnutls_transport_ptr) sockinfo->sock);
+ gnutls_session_set_ptr(session, sockinfo);
+ gnutls_certificate_client_set_retrieve_function(xcred, gnutls_client_cert_cb);
+
+ gnutls_dh_set_prime_bits(session, 512);
+
+ if ((r = SSL_connect_nb(session)) < 0) {
+ g_warning("SSL connection failed (%s)", gnutls_strerror(r));
+ gnutls_certificate_free_credentials(xcred);
+ gnutls_deinit(session);
+ return FALSE;
+ }
+
+ /* Get server's certificate (note: beware of dynamic allocation) */
+ raw_cert_list = gnutls_certificate_get_peers(session, &raw_cert_list_length);
+
+ if (!raw_cert_list
+ || gnutls_certificate_type_get(session) != GNUTLS_CRT_X509
+ || (r = gnutls_x509_crt_init(&cert)) < 0
+ || (r = gnutls_x509_crt_import(cert, &raw_cert_list[0], GNUTLS_X509_FMT_DER)) < 0) {
+ g_warning("cert get failure: %d %s\n", r, gnutls_strerror(r));
+ gnutls_certificate_free_credentials(xcred);
+ gnutls_deinit(session);
+ return FALSE;
+ }
+ r = gnutls_certificate_verify_peers2(session, &status);
+
+ if (!ssl_certificate_check(cert, status, sockinfo->canonical_name, sockinfo->hostname, sockinfo->port)) {
+ gnutls_x509_crt_deinit(cert);
+ gnutls_certificate_free_credentials(xcred);
+ gnutls_deinit(session);
+ return FALSE;
+ }
+
+ gnutls_x509_crt_deinit(cert);
+
+ sockinfo->ssl = session;
+ sockinfo->xcred = xcred;
+#endif
return TRUE;
}
void ssl_done_socket(SockInfo *sockinfo)
{
- if (sockinfo->ssl) {
+ if (sockinfo && sockinfo->ssl) {
+#ifdef USE_OPENSSL
SSL_free(sockinfo->ssl);
+#else
+ gnutls_certificate_free_credentials(sockinfo->xcred);
+ gnutls_deinit(sockinfo->ssl);
+ if (sockinfo->client_crt)
+ gnutls_x509_crt_deinit(sockinfo->client_crt);
+ if (sockinfo->client_key)
+ gnutls_x509_privkey_deinit(sockinfo->client_key);
+ sockinfo->client_key = NULL;
+ sockinfo->client_crt = NULL;
+#endif
+ sockinfo->ssl = NULL;
}
}
projects / claws.git / blobdiff