142 lines
3.4 KiB
C
142 lines
3.4 KiB
C
/*
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* Sylpheed -- a GTK+ based, lightweight, and fast e-mail client
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* Copyright (C) 1999-2002 Hiroyuki Yamamoto
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*/
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#ifdef HAVE_CONFIG_H
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# include "config.h"
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#endif
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#if USE_OPENSSL
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#include "defs.h"
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#include <glib.h>
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#include "intl.h"
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#include "utils.h"
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#include "ssl.h"
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#include "log.h"
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#include "ssl_certificate.h"
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static SSL_CTX *ssl_ctx;
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void ssl_init(void)
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{
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SSL_METHOD *meth;
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FILE *cert_test;
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/* Global system initialization*/
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SSL_library_init();
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SSL_load_error_strings();
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/* Create our context*/
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meth = SSLv23_client_method();
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ssl_ctx = SSL_CTX_new(meth);
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/* Set default certificate paths */
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SSL_CTX_set_default_verify_paths(ssl_ctx);
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/* this problem seems quite common */
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cert_test = fopen (X509_get_default_cert_file(), "r");
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if (cert_test != NULL)
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fclose(cert_test);
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else {
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printf("ssl_init: warning, can't open %s\n", X509_get_default_cert_file());
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printf("ssl_init: it means that certificates' signatures won't appear as Correct,\n");
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printf("ssl_init: even if they should. Check your openssl install.\n");
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}
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#if (OPENSSL_VERSION_NUMBER < 0x0090600fL)
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SSL_CTX_set_verify_depth(ctx,1);
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#endif
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}
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void ssl_done(void)
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{
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if (!ssl_ctx)
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return;
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SSL_CTX_free(ssl_ctx);
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}
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gboolean ssl_init_socket(SockInfo *sockinfo)
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{
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return ssl_init_socket_with_method(sockinfo, SSL_METHOD_SSLv23);
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}
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gboolean ssl_init_socket_with_method(SockInfo *sockinfo, SSLMethod method)
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{
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X509 *server_cert;
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SSL *ssl;
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ssl = SSL_new(ssl_ctx);
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if (ssl == NULL) {
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log_warning(_("Error creating ssl context\n"));
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return FALSE;
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}
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switch (method) {
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case SSL_METHOD_SSLv23:
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debug_print("Setting SSLv23 client method\n");
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SSL_set_ssl_method(ssl, SSLv23_client_method());
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break;
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case SSL_METHOD_TLSv1:
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debug_print("Setting TLSv1 client method\n");
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SSL_set_ssl_method(ssl, TLSv1_client_method());
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break;
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default:
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break;
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}
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SSL_set_fd(ssl, sockinfo->sock);
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if (SSL_connect(ssl) == -1) {
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log_warning(_("SSL connect failed (%s)\n"),
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ERR_error_string(ERR_get_error(), NULL));
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SSL_free(ssl);
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return FALSE;
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}
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/* Get the cipher */
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log_print(_("SSL connection using %s\n"), SSL_get_cipher(ssl));
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/* Get server's certificate (note: beware of dynamic allocation) */
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if ((server_cert = SSL_get_peer_certificate(ssl)) == NULL) {
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debug_print("server_cert is NULL ! this _should_not_ happen !\n");
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SSL_free(ssl);
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return FALSE;
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}
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if (!ssl_certificate_check(server_cert, sockinfo->hostname, sockinfo->port)) {
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X509_free(server_cert);
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SSL_free(ssl);
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return FALSE;
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}
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X509_free(server_cert);
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sockinfo->ssl = ssl;
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return TRUE;
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}
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void ssl_done_socket(SockInfo *sockinfo)
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{
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if (sockinfo->ssl) {
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SSL_free(sockinfo->ssl);
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}
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}
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#endif /* USE_OPENSSL */
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