157 lines
3.6 KiB
C
157 lines
3.6 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_SSL
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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 "ssl_certificate.h"
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static SSL_CTX *ssl_ctx_SSLv23;
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static SSL_CTX *ssl_ctx_TLSv1;
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void ssl_init(void)
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{
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SSL_library_init();
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SSL_load_error_strings();
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ssl_ctx_SSLv23 = SSL_CTX_new(SSLv23_client_method());
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if (ssl_ctx_SSLv23 == NULL) {
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debug_print("SSLv23 not available\n");
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} else {
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debug_print("SSLv23 available\n");
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}
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ssl_ctx_TLSv1 = SSL_CTX_new(TLSv1_client_method());
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if (ssl_ctx_TLSv1 == NULL) {
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debug_print("TLSv1 not available\n");
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} else {
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debug_print("TLSv1 available\n");
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}
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}
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void ssl_done(void)
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{
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if (ssl_ctx_SSLv23) {
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SSL_CTX_free(ssl_ctx_SSLv23);
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}
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if (ssl_ctx_TLSv1) {
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SSL_CTX_free(ssl_ctx_TLSv1);
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}
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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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gboolean ret;
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unsigned char md[EVP_MAX_MD_SIZE];
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char *issuer;
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char *subject;
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switch (method) {
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case SSL_METHOD_SSLv23:
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if (!ssl_ctx_SSLv23) {
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log_warning(_("SSL method not available\n"));
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return FALSE;
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}
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sockinfo->ssl = SSL_new(ssl_ctx_SSLv23);
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break;
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case SSL_METHOD_TLSv1:
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if (!ssl_ctx_TLSv1) {
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log_warning(_("SSL method not available\n"));
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return FALSE;
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}
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sockinfo->ssl = SSL_new(ssl_ctx_TLSv1);
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break;
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default:
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log_warning(_("Unknown SSL method *PROGRAM BUG*\n"));
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return FALSE;
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break;
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}
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if (sockinfo->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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SSL_set_fd(sockinfo->ssl, sockinfo->sock);
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if ((ret = SSL_connect(sockinfo->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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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(sockinfo->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(sockinfo->ssl)) != NULL) {
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int j;
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unsigned int n;
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EVP_MD *digest = EVP_md5();
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log_print(_("Server certificate:\n"));
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if ((subject = X509_NAME_oneline(X509_get_subject_name(server_cert), 0, 0)) != NULL) {
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log_print(_(" Subject: %s\n"), subject);
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}
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if ((issuer = X509_NAME_oneline(X509_get_issuer_name(server_cert), 0, 0)) != NULL) {
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log_print(_(" Issuer: %s\n"), issuer);
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}
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if (!X509_digest(server_cert, digest, md, &n))
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printf("Can't get fingerprint !\n");
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ret = ssl_certificate_check (server_cert, sockinfo->hostname, issuer, subject, md);
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X509_free(server_cert);
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}
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if (issuer)
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free(issuer);
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if (subject)
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free(subject);
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return ret;
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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_SSL */
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