1132 lines
34 KiB
C
1132 lines
34 KiB
C
/*
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* GnuTLS-based implementation of the schannel (SSL/TLS) provider.
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*
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* Copyright 2005 Juan Lang
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* Copyright 2008 Henri Verbeet
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library 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 GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
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*/
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#if 0
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#pragma makedep unix
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#endif
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#include "config.h"
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#include <stdarg.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <errno.h>
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#include <sys/types.h>
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#include <dlfcn.h>
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#ifdef SONAME_LIBGNUTLS
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#include <gnutls/gnutls.h>
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#include <gnutls/crypto.h>
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#include <gnutls/abstract.h>
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#endif
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#include "ntstatus.h"
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#define WIN32_NO_STATUS
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#include "windef.h"
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#include "winbase.h"
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#include "winternl.h"
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#include "sspi.h"
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#include "secur32_priv.h"
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#include "wine/debug.h"
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#if defined(SONAME_LIBGNUTLS)
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WINE_DEFAULT_DEBUG_CHANNEL(secur32);
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WINE_DECLARE_DEBUG_CHANNEL(winediag);
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static const struct schan_callbacks *callbacks;
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/* Not present in gnutls version < 2.9.10. */
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static int (*pgnutls_cipher_get_block_size)(gnutls_cipher_algorithm_t);
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/* Not present in gnutls version < 3.0. */
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static void (*pgnutls_transport_set_pull_timeout_function)(gnutls_session_t,
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int (*)(gnutls_transport_ptr_t, unsigned int));
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static void (*pgnutls_dtls_set_mtu)(gnutls_session_t, unsigned int);
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/* Not present in gnutls version < 3.2.0. */
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static int (*pgnutls_alpn_get_selected_protocol)(gnutls_session_t, gnutls_datum_t *);
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static int (*pgnutls_alpn_set_protocols)(gnutls_session_t, const gnutls_datum_t *,
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unsigned, unsigned int);
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/* Not present in gnutls version < 3.3.0. */
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static int (*pgnutls_privkey_import_rsa_raw)(gnutls_privkey_t, const gnutls_datum_t *,
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const gnutls_datum_t *, const gnutls_datum_t *,
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const gnutls_datum_t *, const gnutls_datum_t *,
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const gnutls_datum_t *, const gnutls_datum_t *,
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const gnutls_datum_t *);
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/* Not present in gnutls version < 3.4.0. */
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static int (*pgnutls_privkey_export_x509)(gnutls_privkey_t, gnutls_x509_privkey_t *);
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static void *libgnutls_handle;
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#define MAKE_FUNCPTR(f) static typeof(f) * p##f
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MAKE_FUNCPTR(gnutls_alert_get);
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MAKE_FUNCPTR(gnutls_alert_get_name);
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MAKE_FUNCPTR(gnutls_certificate_allocate_credentials);
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MAKE_FUNCPTR(gnutls_certificate_free_credentials);
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MAKE_FUNCPTR(gnutls_certificate_get_peers);
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MAKE_FUNCPTR(gnutls_certificate_set_x509_key);
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MAKE_FUNCPTR(gnutls_cipher_get);
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MAKE_FUNCPTR(gnutls_cipher_get_key_size);
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MAKE_FUNCPTR(gnutls_credentials_set);
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MAKE_FUNCPTR(gnutls_deinit);
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MAKE_FUNCPTR(gnutls_global_deinit);
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MAKE_FUNCPTR(gnutls_global_init);
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MAKE_FUNCPTR(gnutls_global_set_log_function);
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MAKE_FUNCPTR(gnutls_global_set_log_level);
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MAKE_FUNCPTR(gnutls_handshake);
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MAKE_FUNCPTR(gnutls_init);
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MAKE_FUNCPTR(gnutls_kx_get);
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MAKE_FUNCPTR(gnutls_mac_get);
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MAKE_FUNCPTR(gnutls_mac_get_key_size);
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MAKE_FUNCPTR(gnutls_perror);
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MAKE_FUNCPTR(gnutls_protocol_get_version);
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MAKE_FUNCPTR(gnutls_priority_set_direct);
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MAKE_FUNCPTR(gnutls_privkey_deinit);
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MAKE_FUNCPTR(gnutls_privkey_init);
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MAKE_FUNCPTR(gnutls_record_get_max_size);
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MAKE_FUNCPTR(gnutls_record_recv);
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MAKE_FUNCPTR(gnutls_record_send);
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MAKE_FUNCPTR(gnutls_server_name_set);
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MAKE_FUNCPTR(gnutls_session_channel_binding);
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MAKE_FUNCPTR(gnutls_transport_get_ptr);
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MAKE_FUNCPTR(gnutls_transport_set_errno);
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MAKE_FUNCPTR(gnutls_transport_set_ptr);
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MAKE_FUNCPTR(gnutls_transport_set_pull_function);
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MAKE_FUNCPTR(gnutls_transport_set_push_function);
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MAKE_FUNCPTR(gnutls_x509_crt_deinit);
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MAKE_FUNCPTR(gnutls_x509_crt_import);
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MAKE_FUNCPTR(gnutls_x509_crt_init);
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MAKE_FUNCPTR(gnutls_x509_privkey_deinit);
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#undef MAKE_FUNCPTR
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#if GNUTLS_VERSION_MAJOR < 3
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#define GNUTLS_CIPHER_AES_192_CBC 92
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#define GNUTLS_CIPHER_AES_128_GCM 93
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#define GNUTLS_CIPHER_AES_256_GCM 94
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#define GNUTLS_MAC_AEAD 200
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#define GNUTLS_KX_ANON_ECDH 11
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#define GNUTLS_KX_ECDHE_RSA 12
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#define GNUTLS_KX_ECDHE_ECDSA 13
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#define GNUTLS_KX_ECDHE_PSK 14
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#endif
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#if GNUTLS_VERSION_MAJOR < 3 || (GNUTLS_VERSION_MAJOR == 3 && GNUTLS_VERSION_MINOR < 5)
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#define GNUTLS_ALPN_SERVER_PRECEDENCE (1<<1)
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#endif
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static int compat_cipher_get_block_size(gnutls_cipher_algorithm_t cipher)
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{
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switch(cipher) {
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case GNUTLS_CIPHER_3DES_CBC:
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return 8;
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case GNUTLS_CIPHER_AES_128_CBC:
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case GNUTLS_CIPHER_AES_256_CBC:
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return 16;
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case GNUTLS_CIPHER_ARCFOUR_128:
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case GNUTLS_CIPHER_ARCFOUR_40:
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return 1;
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case GNUTLS_CIPHER_DES_CBC:
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return 8;
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case GNUTLS_CIPHER_NULL:
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return 1;
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case GNUTLS_CIPHER_RC2_40_CBC:
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return 8;
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default:
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FIXME("Unknown cipher %#x, returning 1\n", cipher);
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return 1;
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}
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}
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static void compat_gnutls_transport_set_pull_timeout_function(gnutls_session_t session,
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int (*func)(gnutls_transport_ptr_t, unsigned int))
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{
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FIXME("\n");
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}
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static int compat_gnutls_privkey_export_x509(gnutls_privkey_t privkey, gnutls_x509_privkey_t *key)
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{
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FIXME("\n");
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return GNUTLS_E_UNKNOWN_PK_ALGORITHM;
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}
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static int compat_gnutls_privkey_import_rsa_raw(gnutls_privkey_t key, const gnutls_datum_t *p1,
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const gnutls_datum_t *p2, const gnutls_datum_t *p3,
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const gnutls_datum_t *p4, const gnutls_datum_t *p5,
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const gnutls_datum_t *p6, const gnutls_datum_t *p7,
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const gnutls_datum_t *p8)
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{
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FIXME("\n");
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return GNUTLS_E_UNKNOWN_PK_ALGORITHM;
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}
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static int compat_gnutls_alpn_get_selected_protocol(gnutls_session_t session, gnutls_datum_t *protocol)
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{
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FIXME("\n");
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return GNUTLS_E_INVALID_REQUEST;
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}
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static int compat_gnutls_alpn_set_protocols(gnutls_session_t session, const gnutls_datum_t *protocols,
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unsigned size, unsigned int flags)
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{
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FIXME("\n");
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return GNUTLS_E_INVALID_REQUEST;
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}
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static void compat_gnutls_dtls_set_mtu(gnutls_session_t session, unsigned int mtu)
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{
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FIXME("\n");
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}
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static ssize_t pull_adapter(gnutls_transport_ptr_t transport, void *buff, size_t buff_len)
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{
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struct schan_transport *t = (struct schan_transport*)transport;
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gnutls_session_t s = (gnutls_session_t)t->session;
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SIZE_T len = buff_len;
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char *b;
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TRACE("Push %lu bytes\n", len);
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b = callbacks->get_buffer(t, &t->in, &len);
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if (!b)
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{
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pgnutls_transport_set_errno(s, EAGAIN);
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return -1;
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}
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memcpy(buff, b, len);
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t->in.offset += len;
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TRACE("Wrote %lu bytes\n", len);
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return len;
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}
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static ssize_t push_adapter(gnutls_transport_ptr_t transport, const void *buff, size_t buff_len)
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{
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struct schan_transport *t = (struct schan_transport*)transport;
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gnutls_session_t s = (gnutls_session_t)t->session;
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SIZE_T len = buff_len;
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char *b;
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TRACE("Push %lu bytes\n", len);
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b = callbacks->get_buffer(t, &t->out, &len);
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if (!b)
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{
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pgnutls_transport_set_errno(s, EAGAIN);
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return -1;
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}
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memcpy(b, buff, len);
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t->out.offset += len;
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TRACE("Wrote %lu bytes\n", len);
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return len;
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}
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static const struct {
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DWORD enable_flag;
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const char *gnutls_flag;
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} protocol_priority_flags[] = {
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{SP_PROT_DTLS1_2_CLIENT, "VERS-DTLS1.2"},
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{SP_PROT_DTLS1_0_CLIENT, "VERS-DTLS1.0"},
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{SP_PROT_TLS1_3_CLIENT, "VERS-TLS1.3"},
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{SP_PROT_TLS1_2_CLIENT, "VERS-TLS1.2"},
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{SP_PROT_TLS1_1_CLIENT, "VERS-TLS1.1"},
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{SP_PROT_TLS1_0_CLIENT, "VERS-TLS1.0"},
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{SP_PROT_SSL3_CLIENT, "VERS-SSL3.0"}
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/* {SP_PROT_SSL2_CLIENT} is not supported by GnuTLS */
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};
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static DWORD supported_protocols;
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static void check_supported_protocols(void)
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{
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gnutls_session_t session;
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char priority[64];
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unsigned i;
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int err;
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err = pgnutls_init(&session, GNUTLS_CLIENT);
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if (err != GNUTLS_E_SUCCESS)
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{
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pgnutls_perror(err);
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return;
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}
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for(i = 0; i < ARRAY_SIZE(protocol_priority_flags); i++)
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{
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sprintf(priority, "NORMAL:-%s", protocol_priority_flags[i].gnutls_flag);
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err = pgnutls_priority_set_direct(session, priority, NULL);
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if (err == GNUTLS_E_SUCCESS)
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{
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TRACE("%s is supported\n", protocol_priority_flags[i].gnutls_flag);
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supported_protocols |= protocol_priority_flags[i].enable_flag;
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}
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else
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TRACE("%s is not supported\n", protocol_priority_flags[i].gnutls_flag);
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}
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pgnutls_deinit(session);
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}
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static DWORD CDECL schan_get_enabled_protocols(void)
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{
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return supported_protocols;
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}
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static int pull_timeout(gnutls_transport_ptr_t transport, unsigned int timeout)
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{
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struct schan_transport *t = (struct schan_transport*)transport;
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gnutls_session_t s = (gnutls_session_t)t->session;
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SIZE_T count = 0;
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TRACE("\n");
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if (callbacks->get_buffer(t, &t->in, &count)) return 1;
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pgnutls_transport_set_errno(s, EAGAIN);
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return -1;
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}
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static BOOL CDECL schan_create_session(schan_session *session, schan_credentials *cred)
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{
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gnutls_session_t *s = (gnutls_session_t*)session;
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char priority[128] = "NORMAL:%LATEST_RECORD_VERSION", *p;
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BOOL using_vers_all = FALSE, disabled;
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unsigned int i, flags = (cred->credential_use == SECPKG_CRED_INBOUND) ? GNUTLS_SERVER : GNUTLS_CLIENT;
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int err;
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if (cred->enabled_protocols & (SP_PROT_DTLS1_0_CLIENT | SP_PROT_DTLS1_2_CLIENT))
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{
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flags |= GNUTLS_DATAGRAM;
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}
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err = pgnutls_init(s, flags);
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if (err != GNUTLS_E_SUCCESS)
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{
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pgnutls_perror(err);
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return FALSE;
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}
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p = priority + strlen(priority);
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/* VERS-ALL is nice to use for forward compatibility. It was introduced before support for TLS1.3,
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* so if TLS1.3 is supported, we may safely use it. Otherwise explicitly disable all known
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* disabled protocols. */
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if (supported_protocols & SP_PROT_TLS1_3_CLIENT)
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{
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strcpy(p, ":-VERS-ALL");
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p += strlen(p);
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using_vers_all = TRUE;
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}
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for (i = 0; i < ARRAY_SIZE(protocol_priority_flags); i++)
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{
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if (!(supported_protocols & protocol_priority_flags[i].enable_flag)) continue;
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disabled = !(cred->enabled_protocols & protocol_priority_flags[i].enable_flag);
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if (using_vers_all && disabled) continue;
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*p++ = ':';
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*p++ = disabled ? '-' : '+';
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strcpy(p, protocol_priority_flags[i].gnutls_flag);
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p += strlen(p);
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}
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TRACE("Using %s priority\n", debugstr_a(priority));
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err = pgnutls_priority_set_direct(*s, priority, NULL);
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if (err != GNUTLS_E_SUCCESS)
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{
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pgnutls_perror(err);
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pgnutls_deinit(*s);
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return FALSE;
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}
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err = pgnutls_credentials_set(*s, GNUTLS_CRD_CERTIFICATE,
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(gnutls_certificate_credentials_t)cred->credentials);
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if (err != GNUTLS_E_SUCCESS)
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{
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pgnutls_perror(err);
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pgnutls_deinit(*s);
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return FALSE;
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}
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pgnutls_transport_set_pull_function(*s, pull_adapter);
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if (flags & GNUTLS_DATAGRAM) pgnutls_transport_set_pull_timeout_function(*s, pull_timeout);
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pgnutls_transport_set_push_function(*s, push_adapter);
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return TRUE;
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}
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static void CDECL schan_dispose_session(schan_session session)
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{
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gnutls_session_t s = (gnutls_session_t)session;
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pgnutls_deinit(s);
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}
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static void CDECL schan_set_session_transport(schan_session session, struct schan_transport *t)
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{
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gnutls_session_t s = (gnutls_session_t)session;
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pgnutls_transport_set_ptr(s, (gnutls_transport_ptr_t)t);
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}
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static void CDECL schan_set_session_target(schan_session session, const char *target)
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{
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gnutls_session_t s = (gnutls_session_t)session;
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pgnutls_server_name_set( s, GNUTLS_NAME_DNS, target, strlen(target) );
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}
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static SECURITY_STATUS CDECL schan_handshake(schan_session session)
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{
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gnutls_session_t s = (gnutls_session_t)session;
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int err;
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while(1) {
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err = pgnutls_handshake(s);
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switch(err) {
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case GNUTLS_E_SUCCESS:
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TRACE("Handshake completed\n");
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return SEC_E_OK;
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case GNUTLS_E_AGAIN:
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TRACE("Continue...\n");
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return SEC_I_CONTINUE_NEEDED;
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case GNUTLS_E_WARNING_ALERT_RECEIVED:
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{
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gnutls_alert_description_t alert = pgnutls_alert_get(s);
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WARN("WARNING ALERT: %d %s\n", alert, pgnutls_alert_get_name(alert));
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switch(alert) {
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case GNUTLS_A_UNRECOGNIZED_NAME:
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TRACE("Ignoring\n");
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continue;
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default:
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return SEC_E_INTERNAL_ERROR;
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}
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}
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case GNUTLS_E_FATAL_ALERT_RECEIVED:
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{
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gnutls_alert_description_t alert = pgnutls_alert_get(s);
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WARN("FATAL ALERT: %d %s\n", alert, pgnutls_alert_get_name(alert));
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return SEC_E_INTERNAL_ERROR;
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}
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default:
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pgnutls_perror(err);
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return SEC_E_INTERNAL_ERROR;
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}
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}
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/* Never reached */
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return SEC_E_OK;
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}
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|
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static DWORD get_protocol(gnutls_protocol_t proto)
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{
|
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/* FIXME: currently schannel only implements client connections, but
|
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* there's no reason it couldn't be used for servers as well. The
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* context doesn't tell us which it is, so assume client for now.
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*/
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switch (proto)
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{
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case GNUTLS_SSL3: return SP_PROT_SSL3_CLIENT;
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case GNUTLS_TLS1_0: return SP_PROT_TLS1_0_CLIENT;
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case GNUTLS_TLS1_1: return SP_PROT_TLS1_1_CLIENT;
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case GNUTLS_TLS1_2: return SP_PROT_TLS1_2_CLIENT;
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case GNUTLS_DTLS1_0: return SP_PROT_DTLS1_0_CLIENT;
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case GNUTLS_DTLS1_2: return SP_PROT_DTLS1_2_CLIENT;
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default:
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FIXME("unknown protocol %d\n", proto);
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
static ALG_ID get_cipher_algid(gnutls_cipher_algorithm_t cipher)
|
|
{
|
|
switch (cipher)
|
|
{
|
|
case GNUTLS_CIPHER_UNKNOWN:
|
|
case GNUTLS_CIPHER_NULL: return 0;
|
|
case GNUTLS_CIPHER_ARCFOUR_40:
|
|
case GNUTLS_CIPHER_ARCFOUR_128: return CALG_RC4;
|
|
case GNUTLS_CIPHER_DES_CBC: return CALG_DES;
|
|
case GNUTLS_CIPHER_3DES_CBC: return CALG_3DES;
|
|
case GNUTLS_CIPHER_AES_128_CBC:
|
|
case GNUTLS_CIPHER_AES_128_GCM: return CALG_AES_128;
|
|
case GNUTLS_CIPHER_AES_192_CBC: return CALG_AES_192;
|
|
case GNUTLS_CIPHER_AES_256_GCM:
|
|
case GNUTLS_CIPHER_AES_256_CBC: return CALG_AES_256;
|
|
case GNUTLS_CIPHER_RC2_40_CBC: return CALG_RC2;
|
|
default:
|
|
FIXME("unknown algorithm %d\n", cipher);
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
static ALG_ID get_mac_algid(gnutls_mac_algorithm_t mac, gnutls_cipher_algorithm_t cipher)
|
|
{
|
|
switch (mac)
|
|
{
|
|
case GNUTLS_MAC_UNKNOWN:
|
|
case GNUTLS_MAC_NULL: return 0;
|
|
case GNUTLS_MAC_MD2: return CALG_MD2;
|
|
case GNUTLS_MAC_MD5: return CALG_MD5;
|
|
case GNUTLS_MAC_SHA1: return CALG_SHA1;
|
|
case GNUTLS_MAC_SHA256: return CALG_SHA_256;
|
|
case GNUTLS_MAC_SHA384: return CALG_SHA_384;
|
|
case GNUTLS_MAC_SHA512: return CALG_SHA_512;
|
|
case GNUTLS_MAC_AEAD:
|
|
/* When using AEAD (such as GCM), we return PRF algorithm instead
|
|
which is defined in RFC 5289. */
|
|
switch (cipher)
|
|
{
|
|
case GNUTLS_CIPHER_AES_128_GCM: return CALG_SHA_256;
|
|
case GNUTLS_CIPHER_AES_256_GCM: return CALG_SHA_384;
|
|
default:
|
|
break;
|
|
}
|
|
/* fall through */
|
|
default:
|
|
FIXME("unknown algorithm %d, cipher %d\n", mac, cipher);
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
static ALG_ID get_kx_algid(int kx)
|
|
{
|
|
switch (kx)
|
|
{
|
|
case GNUTLS_KX_UNKNOWN: return 0;
|
|
case GNUTLS_KX_RSA:
|
|
case GNUTLS_KX_RSA_EXPORT: return CALG_RSA_KEYX;
|
|
case GNUTLS_KX_DHE_PSK:
|
|
case GNUTLS_KX_DHE_DSS:
|
|
case GNUTLS_KX_DHE_RSA: return CALG_DH_EPHEM;
|
|
case GNUTLS_KX_ANON_ECDH: return CALG_ECDH;
|
|
case GNUTLS_KX_ECDHE_RSA:
|
|
case GNUTLS_KX_ECDHE_PSK:
|
|
case GNUTLS_KX_ECDHE_ECDSA: return CALG_ECDH_EPHEM;
|
|
default:
|
|
FIXME("unknown algorithm %d\n", kx);
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
static unsigned int CDECL schan_get_session_cipher_block_size(schan_session session)
|
|
{
|
|
gnutls_session_t s = (gnutls_session_t)session;
|
|
return pgnutls_cipher_get_block_size(pgnutls_cipher_get(s));
|
|
}
|
|
|
|
static unsigned int CDECL schan_get_max_message_size(schan_session session)
|
|
{
|
|
return pgnutls_record_get_max_size((gnutls_session_t)session);
|
|
}
|
|
|
|
static SECURITY_STATUS CDECL schan_get_connection_info(schan_session session, SecPkgContext_ConnectionInfo *info)
|
|
{
|
|
gnutls_session_t s = (gnutls_session_t)session;
|
|
gnutls_protocol_t proto = pgnutls_protocol_get_version(s);
|
|
gnutls_cipher_algorithm_t alg = pgnutls_cipher_get(s);
|
|
gnutls_mac_algorithm_t mac = pgnutls_mac_get(s);
|
|
gnutls_kx_algorithm_t kx = pgnutls_kx_get(s);
|
|
|
|
info->dwProtocol = get_protocol(proto);
|
|
info->aiCipher = get_cipher_algid(alg);
|
|
info->dwCipherStrength = pgnutls_cipher_get_key_size(alg) * 8;
|
|
info->aiHash = get_mac_algid(mac, alg);
|
|
info->dwHashStrength = pgnutls_mac_get_key_size(mac) * 8;
|
|
info->aiExch = get_kx_algid(kx);
|
|
/* FIXME: info->dwExchStrength? */
|
|
info->dwExchStrength = 0;
|
|
return SEC_E_OK;
|
|
}
|
|
|
|
static SECURITY_STATUS CDECL schan_get_unique_channel_binding(schan_session session, SecPkgContext_Bindings *bindings)
|
|
{
|
|
static const char prefix[] = "tls-unique:";
|
|
gnutls_datum_t datum;
|
|
int rc;
|
|
SECURITY_STATUS ret;
|
|
char *p;
|
|
gnutls_session_t s = (gnutls_session_t)session;
|
|
|
|
rc = pgnutls_session_channel_binding(s, GNUTLS_CB_TLS_UNIQUE, &datum);
|
|
if (rc)
|
|
{
|
|
pgnutls_perror(rc);
|
|
return SEC_E_INTERNAL_ERROR;
|
|
}
|
|
|
|
bindings->BindingsLength = sizeof(SEC_CHANNEL_BINDINGS) + sizeof(prefix)-1 + datum.size;
|
|
bindings->Bindings = RtlAllocateHeap(GetProcessHeap(), HEAP_ZERO_MEMORY, bindings->BindingsLength);
|
|
if (!bindings->Bindings)
|
|
ret = SEC_E_INSUFFICIENT_MEMORY;
|
|
else
|
|
{
|
|
bindings->Bindings->cbApplicationDataLength = sizeof(prefix)-1 + datum.size;
|
|
bindings->Bindings->dwApplicationDataOffset = sizeof(SEC_CHANNEL_BINDINGS);
|
|
p = (char*)(bindings->Bindings+1);
|
|
memcpy(p, prefix, sizeof(prefix)-1);
|
|
p += sizeof(prefix)-1;
|
|
memcpy(p, datum.data, datum.size);
|
|
ret = SEC_E_OK;
|
|
}
|
|
free(datum.data);
|
|
return ret;
|
|
}
|
|
|
|
static ALG_ID CDECL schan_get_key_signature_algorithm(schan_session session)
|
|
{
|
|
gnutls_session_t s = (gnutls_session_t)session;
|
|
gnutls_kx_algorithm_t kx = pgnutls_kx_get(s);
|
|
|
|
TRACE("(%p)\n", session);
|
|
|
|
switch (kx)
|
|
{
|
|
case GNUTLS_KX_UNKNOWN: return 0;
|
|
case GNUTLS_KX_RSA:
|
|
case GNUTLS_KX_RSA_EXPORT:
|
|
case GNUTLS_KX_DHE_RSA:
|
|
case GNUTLS_KX_ECDHE_RSA: return CALG_RSA_SIGN;
|
|
case GNUTLS_KX_ECDHE_ECDSA: return CALG_ECDSA;
|
|
default:
|
|
FIXME("unknown algorithm %d\n", kx);
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
static SECURITY_STATUS CDECL schan_get_session_peer_certificate(schan_session session, struct schan_cert_list *list)
|
|
{
|
|
gnutls_session_t s = (gnutls_session_t)session;
|
|
const gnutls_datum_t *datum;
|
|
unsigned int i, size;
|
|
BYTE *ptr;
|
|
|
|
if (!(datum = pgnutls_certificate_get_peers(s, &list->count))) return SEC_E_INTERNAL_ERROR;
|
|
|
|
size = list->count * sizeof(list->certs[0]);
|
|
for (i = 0; i < list->count; i++) size += datum[i].size;
|
|
if (!(list->certs = RtlAllocateHeap(GetProcessHeap(), 0, size))) return SEC_E_INSUFFICIENT_MEMORY;
|
|
|
|
ptr = (BYTE *)&list->certs[list->count];
|
|
for (i = 0; i < list->count; i++)
|
|
{
|
|
list->certs[i].cbData = datum[i].size;
|
|
list->certs[i].pbData = ptr;
|
|
memcpy(list->certs[i].pbData, datum[i].data, datum[i].size);
|
|
ptr += datum[i].size;
|
|
}
|
|
|
|
return SEC_E_OK;
|
|
}
|
|
|
|
static SECURITY_STATUS CDECL schan_send(schan_session session, const void *buffer, SIZE_T *length)
|
|
{
|
|
gnutls_session_t s = (gnutls_session_t)session;
|
|
SSIZE_T ret, total = 0;
|
|
|
|
for (;;)
|
|
{
|
|
ret = pgnutls_record_send(s, (const char *)buffer + total, *length - total);
|
|
if (ret >= 0)
|
|
{
|
|
total += ret;
|
|
TRACE( "sent %ld now %ld/%ld\n", ret, total, *length );
|
|
if (total == *length) return SEC_E_OK;
|
|
}
|
|
else if (ret == GNUTLS_E_AGAIN)
|
|
{
|
|
struct schan_transport *t = (struct schan_transport *)pgnutls_transport_get_ptr(s);
|
|
SIZE_T count = 0;
|
|
|
|
if (callbacks->get_buffer(t, &t->out, &count)) continue;
|
|
return SEC_I_CONTINUE_NEEDED;
|
|
}
|
|
else
|
|
{
|
|
pgnutls_perror(ret);
|
|
return SEC_E_INTERNAL_ERROR;
|
|
}
|
|
}
|
|
}
|
|
|
|
static SECURITY_STATUS CDECL schan_recv(schan_session session, void *buffer, SIZE_T *length)
|
|
{
|
|
gnutls_session_t s = (gnutls_session_t)session;
|
|
ssize_t ret;
|
|
|
|
again:
|
|
ret = pgnutls_record_recv(s, buffer, *length);
|
|
|
|
if (ret >= 0)
|
|
*length = ret;
|
|
else if (ret == GNUTLS_E_AGAIN)
|
|
{
|
|
struct schan_transport *t = (struct schan_transport *)pgnutls_transport_get_ptr(s);
|
|
SIZE_T count = 0;
|
|
|
|
if (callbacks->get_buffer(t, &t->in, &count))
|
|
goto again;
|
|
|
|
return SEC_I_CONTINUE_NEEDED;
|
|
}
|
|
else if (ret == GNUTLS_E_REHANDSHAKE)
|
|
{
|
|
TRACE("Rehandshake requested\n");
|
|
return SEC_I_RENEGOTIATE;
|
|
}
|
|
else
|
|
{
|
|
pgnutls_perror(ret);
|
|
return SEC_E_INTERNAL_ERROR;
|
|
}
|
|
|
|
return SEC_E_OK;
|
|
}
|
|
|
|
static unsigned int parse_alpn_protocol_list(unsigned char *buffer, unsigned int buflen, gnutls_datum_t *list)
|
|
{
|
|
unsigned int len, offset = 0, count = 0;
|
|
|
|
while (buflen)
|
|
{
|
|
len = buffer[offset++];
|
|
buflen--;
|
|
if (!len || len > buflen) return 0;
|
|
if (list)
|
|
{
|
|
list[count].data = &buffer[offset];
|
|
list[count].size = len;
|
|
}
|
|
buflen -= len;
|
|
offset += len;
|
|
count++;
|
|
}
|
|
|
|
return count;
|
|
}
|
|
|
|
static void CDECL schan_set_application_protocols(schan_session session, unsigned char *buffer, unsigned int buflen)
|
|
{
|
|
gnutls_session_t s = (gnutls_session_t)session;
|
|
unsigned int extension_len, extension, count = 0, offset = 0;
|
|
unsigned short list_len;
|
|
gnutls_datum_t *protocols;
|
|
int ret;
|
|
|
|
if (sizeof(extension_len) > buflen) return;
|
|
extension_len = *(unsigned int *)&buffer[offset];
|
|
offset += sizeof(extension_len);
|
|
|
|
if (offset + sizeof(extension) > buflen) return;
|
|
extension = *(unsigned int *)&buffer[offset];
|
|
if (extension != SecApplicationProtocolNegotiationExt_ALPN)
|
|
{
|
|
FIXME("extension %u not supported\n", extension);
|
|
return;
|
|
}
|
|
offset += sizeof(extension);
|
|
|
|
if (offset + sizeof(list_len) > buflen) return;
|
|
list_len = *(unsigned short *)&buffer[offset];
|
|
offset += sizeof(list_len);
|
|
|
|
if (offset + list_len > buflen) return;
|
|
count = parse_alpn_protocol_list(&buffer[offset], list_len, NULL);
|
|
if (!count || !(protocols = RtlAllocateHeap(GetProcessHeap(), 0, count * sizeof(*protocols)))) return;
|
|
|
|
parse_alpn_protocol_list(&buffer[offset], list_len, protocols);
|
|
if ((ret = pgnutls_alpn_set_protocols(s, protocols, count, GNUTLS_ALPN_SERVER_PRECEDENCE) < 0))
|
|
{
|
|
pgnutls_perror(ret);
|
|
}
|
|
|
|
RtlFreeHeap(GetProcessHeap(), 0, protocols);
|
|
}
|
|
|
|
static SECURITY_STATUS CDECL schan_get_application_protocol(schan_session session,
|
|
SecPkgContext_ApplicationProtocol *protocol)
|
|
{
|
|
gnutls_session_t s = (gnutls_session_t)session;
|
|
gnutls_datum_t selected;
|
|
|
|
memset(protocol, 0, sizeof(*protocol));
|
|
if (pgnutls_alpn_get_selected_protocol(s, &selected) < 0) return SEC_E_OK;
|
|
|
|
if (selected.size <= sizeof(protocol->ProtocolId))
|
|
{
|
|
protocol->ProtoNegoStatus = SecApplicationProtocolNegotiationStatus_Success;
|
|
protocol->ProtoNegoExt = SecApplicationProtocolNegotiationExt_ALPN;
|
|
protocol->ProtocolIdSize = selected.size;
|
|
memcpy(protocol->ProtocolId, selected.data, selected.size);
|
|
TRACE("returning %s\n", wine_dbgstr_an((const char *)selected.data, selected.size));
|
|
}
|
|
return SEC_E_OK;
|
|
}
|
|
|
|
static SECURITY_STATUS CDECL schan_set_dtls_mtu(schan_session session, unsigned int mtu)
|
|
{
|
|
gnutls_session_t s = (gnutls_session_t)session;
|
|
|
|
pgnutls_dtls_set_mtu(s, mtu);
|
|
TRACE("MTU set to %u\n", mtu);
|
|
return SEC_E_OK;
|
|
}
|
|
|
|
static inline void reverse_bytes(BYTE *buf, ULONG len)
|
|
{
|
|
BYTE tmp;
|
|
ULONG i;
|
|
for (i = 0; i < len / 2; i++)
|
|
{
|
|
tmp = buf[i];
|
|
buf[i] = buf[len - i - 1];
|
|
buf[len - i - 1] = tmp;
|
|
}
|
|
}
|
|
|
|
static ULONG set_component(gnutls_datum_t *comp, BYTE *data, ULONG len, ULONG *buflen)
|
|
{
|
|
comp->data = data;
|
|
comp->size = len;
|
|
reverse_bytes(comp->data, comp->size);
|
|
if (comp->data[0] & 0x80) /* add leading 0 byte if most significant bit is set */
|
|
{
|
|
memmove(comp->data + 1, comp->data, *buflen);
|
|
comp->data[0] = 0;
|
|
comp->size++;
|
|
}
|
|
*buflen -= comp->size;
|
|
return comp->size;
|
|
}
|
|
|
|
static gnutls_x509_privkey_t get_x509_key(const DATA_BLOB *key_blob)
|
|
{
|
|
gnutls_privkey_t key = NULL;
|
|
gnutls_x509_privkey_t x509key = NULL;
|
|
gnutls_datum_t m, e, d, p, q, u, e1, e2;
|
|
BYTE *ptr;
|
|
RSAPUBKEY *rsakey;
|
|
DWORD size = key_blob->cbData;
|
|
int ret;
|
|
|
|
if (size < sizeof(BLOBHEADER)) return NULL;
|
|
|
|
rsakey = (RSAPUBKEY *)(key_blob->pbData + sizeof(BLOBHEADER));
|
|
TRACE("RSA key bitlen %u pubexp %u\n", rsakey->bitlen, rsakey->pubexp);
|
|
|
|
size -= sizeof(BLOBHEADER) + FIELD_OFFSET(RSAPUBKEY, pubexp);
|
|
set_component(&e, (BYTE *)&rsakey->pubexp, sizeof(rsakey->pubexp), &size);
|
|
|
|
ptr = (BYTE *)(rsakey + 1);
|
|
ptr += set_component(&m, ptr, rsakey->bitlen / 8, &size);
|
|
ptr += set_component(&p, ptr, rsakey->bitlen / 16, &size);
|
|
ptr += set_component(&q, ptr, rsakey->bitlen / 16, &size);
|
|
ptr += set_component(&e1, ptr, rsakey->bitlen / 16, &size);
|
|
ptr += set_component(&e2, ptr, rsakey->bitlen / 16, &size);
|
|
ptr += set_component(&u, ptr, rsakey->bitlen / 16, &size);
|
|
ptr += set_component(&d, ptr, rsakey->bitlen / 8, &size);
|
|
|
|
if ((ret = pgnutls_privkey_init(&key)) < 0)
|
|
{
|
|
pgnutls_perror(ret);
|
|
return NULL;
|
|
}
|
|
|
|
if (((ret = pgnutls_privkey_import_rsa_raw(key, &m, &e, &d, &p, &q, &u, &e1, &e2)) < 0) ||
|
|
(ret = pgnutls_privkey_export_x509(key, &x509key)) < 0)
|
|
{
|
|
pgnutls_perror(ret);
|
|
pgnutls_privkey_deinit(key);
|
|
return NULL;
|
|
}
|
|
|
|
return x509key;
|
|
}
|
|
|
|
static gnutls_x509_crt_t get_x509_crt(const CERT_CONTEXT *ctx)
|
|
{
|
|
gnutls_datum_t data;
|
|
gnutls_x509_crt_t crt;
|
|
int ret;
|
|
|
|
if (!ctx) return FALSE;
|
|
if (ctx->dwCertEncodingType != X509_ASN_ENCODING)
|
|
{
|
|
FIXME("encoding type %u not supported\n", ctx->dwCertEncodingType);
|
|
return NULL;
|
|
}
|
|
|
|
if ((ret = pgnutls_x509_crt_init(&crt)) < 0)
|
|
{
|
|
pgnutls_perror(ret);
|
|
return NULL;
|
|
}
|
|
|
|
data.data = ctx->pbCertEncoded;
|
|
data.size = ctx->cbCertEncoded;
|
|
if ((ret = pgnutls_x509_crt_import(crt, &data, GNUTLS_X509_FMT_DER)) < 0)
|
|
{
|
|
pgnutls_perror(ret);
|
|
pgnutls_x509_crt_deinit(crt);
|
|
return NULL;
|
|
}
|
|
|
|
return crt;
|
|
}
|
|
|
|
static BOOL CDECL schan_allocate_certificate_credentials(schan_credentials *c, const CERT_CONTEXT *ctx,
|
|
const DATA_BLOB *key_blob )
|
|
{
|
|
gnutls_certificate_credentials_t creds;
|
|
gnutls_x509_crt_t crt;
|
|
gnutls_x509_privkey_t key;
|
|
int ret;
|
|
|
|
ret = pgnutls_certificate_allocate_credentials(&creds);
|
|
if (ret != GNUTLS_E_SUCCESS)
|
|
{
|
|
pgnutls_perror(ret);
|
|
return FALSE;
|
|
}
|
|
|
|
if (!ctx)
|
|
{
|
|
c->credentials = creds;
|
|
return TRUE;
|
|
}
|
|
|
|
if (!(crt = get_x509_crt(ctx)))
|
|
{
|
|
pgnutls_certificate_free_credentials(creds);
|
|
return FALSE;
|
|
}
|
|
|
|
if (!(key = get_x509_key(key_blob)))
|
|
{
|
|
pgnutls_x509_crt_deinit(crt);
|
|
pgnutls_certificate_free_credentials(creds);
|
|
return FALSE;
|
|
}
|
|
|
|
ret = pgnutls_certificate_set_x509_key(creds, &crt, 1, key);
|
|
pgnutls_x509_privkey_deinit(key);
|
|
pgnutls_x509_crt_deinit(crt);
|
|
if (ret != GNUTLS_E_SUCCESS)
|
|
{
|
|
pgnutls_perror(ret);
|
|
pgnutls_certificate_free_credentials(creds);
|
|
return FALSE;
|
|
}
|
|
|
|
c->credentials = creds;
|
|
return TRUE;
|
|
}
|
|
|
|
static void CDECL schan_free_certificate_credentials(schan_credentials *c)
|
|
{
|
|
pgnutls_certificate_free_credentials(c->credentials);
|
|
}
|
|
|
|
static void gnutls_log(int level, const char *msg)
|
|
{
|
|
TRACE("<%d> %s", level, msg);
|
|
}
|
|
|
|
static BOOL gnutls_initialize(void)
|
|
{
|
|
const char *env_str;
|
|
int ret;
|
|
|
|
if ((env_str = getenv("GNUTLS_SYSTEM_PRIORITY_FILE")))
|
|
{
|
|
WARN("GNUTLS_SYSTEM_PRIORITY_FILE is %s.\n", debugstr_a(env_str));
|
|
}
|
|
else
|
|
{
|
|
WARN("Setting GNUTLS_SYSTEM_PRIORITY_FILE to \"/dev/null\".\n");
|
|
setenv("GNUTLS_SYSTEM_PRIORITY_FILE", "/dev/null", 0);
|
|
}
|
|
|
|
libgnutls_handle = dlopen(SONAME_LIBGNUTLS, RTLD_NOW);
|
|
if (!libgnutls_handle)
|
|
{
|
|
ERR_(winediag)("Failed to load libgnutls, secure connections will not be available.\n");
|
|
return FALSE;
|
|
}
|
|
|
|
#define LOAD_FUNCPTR(f) \
|
|
if (!(p##f = dlsym(libgnutls_handle, #f))) \
|
|
{ \
|
|
ERR("Failed to load %s\n", #f); \
|
|
goto fail; \
|
|
}
|
|
|
|
LOAD_FUNCPTR(gnutls_alert_get)
|
|
LOAD_FUNCPTR(gnutls_alert_get_name)
|
|
LOAD_FUNCPTR(gnutls_certificate_allocate_credentials)
|
|
LOAD_FUNCPTR(gnutls_certificate_free_credentials)
|
|
LOAD_FUNCPTR(gnutls_certificate_get_peers)
|
|
LOAD_FUNCPTR(gnutls_certificate_set_x509_key)
|
|
LOAD_FUNCPTR(gnutls_cipher_get)
|
|
LOAD_FUNCPTR(gnutls_cipher_get_key_size)
|
|
LOAD_FUNCPTR(gnutls_credentials_set)
|
|
LOAD_FUNCPTR(gnutls_deinit)
|
|
LOAD_FUNCPTR(gnutls_global_deinit)
|
|
LOAD_FUNCPTR(gnutls_global_init)
|
|
LOAD_FUNCPTR(gnutls_global_set_log_function)
|
|
LOAD_FUNCPTR(gnutls_global_set_log_level)
|
|
LOAD_FUNCPTR(gnutls_handshake)
|
|
LOAD_FUNCPTR(gnutls_init)
|
|
LOAD_FUNCPTR(gnutls_kx_get)
|
|
LOAD_FUNCPTR(gnutls_mac_get)
|
|
LOAD_FUNCPTR(gnutls_mac_get_key_size)
|
|
LOAD_FUNCPTR(gnutls_perror)
|
|
LOAD_FUNCPTR(gnutls_protocol_get_version)
|
|
LOAD_FUNCPTR(gnutls_priority_set_direct)
|
|
LOAD_FUNCPTR(gnutls_privkey_deinit)
|
|
LOAD_FUNCPTR(gnutls_privkey_init)
|
|
LOAD_FUNCPTR(gnutls_record_get_max_size);
|
|
LOAD_FUNCPTR(gnutls_record_recv);
|
|
LOAD_FUNCPTR(gnutls_record_send);
|
|
LOAD_FUNCPTR(gnutls_server_name_set)
|
|
LOAD_FUNCPTR(gnutls_session_channel_binding)
|
|
LOAD_FUNCPTR(gnutls_transport_get_ptr)
|
|
LOAD_FUNCPTR(gnutls_transport_set_errno)
|
|
LOAD_FUNCPTR(gnutls_transport_set_ptr)
|
|
LOAD_FUNCPTR(gnutls_transport_set_pull_function)
|
|
LOAD_FUNCPTR(gnutls_transport_set_push_function)
|
|
LOAD_FUNCPTR(gnutls_x509_crt_deinit)
|
|
LOAD_FUNCPTR(gnutls_x509_crt_import)
|
|
LOAD_FUNCPTR(gnutls_x509_crt_init)
|
|
LOAD_FUNCPTR(gnutls_x509_privkey_deinit)
|
|
#undef LOAD_FUNCPTR
|
|
|
|
if (!(pgnutls_cipher_get_block_size = dlsym(libgnutls_handle, "gnutls_cipher_get_block_size")))
|
|
{
|
|
WARN("gnutls_cipher_get_block_size not found\n");
|
|
pgnutls_cipher_get_block_size = compat_cipher_get_block_size;
|
|
}
|
|
if (!(pgnutls_transport_set_pull_timeout_function = dlsym(libgnutls_handle, "gnutls_transport_set_pull_timeout_function")))
|
|
{
|
|
WARN("gnutls_transport_set_pull_timeout_function not found\n");
|
|
pgnutls_transport_set_pull_timeout_function = compat_gnutls_transport_set_pull_timeout_function;
|
|
}
|
|
if (!(pgnutls_alpn_set_protocols = dlsym(libgnutls_handle, "gnutls_alpn_set_protocols")))
|
|
{
|
|
WARN("gnutls_alpn_set_protocols not found\n");
|
|
pgnutls_alpn_set_protocols = compat_gnutls_alpn_set_protocols;
|
|
}
|
|
if (!(pgnutls_alpn_get_selected_protocol = dlsym(libgnutls_handle, "gnutls_alpn_get_selected_protocol")))
|
|
{
|
|
WARN("gnutls_alpn_get_selected_protocol not found\n");
|
|
pgnutls_alpn_get_selected_protocol = compat_gnutls_alpn_get_selected_protocol;
|
|
}
|
|
if (!(pgnutls_dtls_set_mtu = dlsym(libgnutls_handle, "gnutls_dtls_set_mtu")))
|
|
{
|
|
WARN("gnutls_dtls_set_mtu not found\n");
|
|
pgnutls_dtls_set_mtu = compat_gnutls_dtls_set_mtu;
|
|
}
|
|
if (!(pgnutls_privkey_export_x509 = dlsym(libgnutls_handle, "gnutls_privkey_export_x509")))
|
|
{
|
|
WARN("gnutls_privkey_export_x509 not found\n");
|
|
pgnutls_privkey_export_x509 = compat_gnutls_privkey_export_x509;
|
|
}
|
|
if (!(pgnutls_privkey_import_rsa_raw = dlsym(libgnutls_handle, "gnutls_privkey_import_rsa_raw")))
|
|
{
|
|
WARN("gnutls_privkey_import_rsa_raw not found\n");
|
|
pgnutls_privkey_import_rsa_raw = compat_gnutls_privkey_import_rsa_raw;
|
|
}
|
|
|
|
ret = pgnutls_global_init();
|
|
if (ret != GNUTLS_E_SUCCESS)
|
|
{
|
|
pgnutls_perror(ret);
|
|
goto fail;
|
|
}
|
|
|
|
if (TRACE_ON(secur32))
|
|
{
|
|
pgnutls_global_set_log_level(4);
|
|
pgnutls_global_set_log_function(gnutls_log);
|
|
}
|
|
|
|
check_supported_protocols();
|
|
return TRUE;
|
|
|
|
fail:
|
|
dlclose(libgnutls_handle);
|
|
libgnutls_handle = NULL;
|
|
return FALSE;
|
|
}
|
|
|
|
static void gnutls_uninitialize(void)
|
|
{
|
|
pgnutls_global_deinit();
|
|
dlclose(libgnutls_handle);
|
|
libgnutls_handle = NULL;
|
|
}
|
|
|
|
static const struct schan_funcs funcs =
|
|
{
|
|
schan_allocate_certificate_credentials,
|
|
schan_create_session,
|
|
schan_dispose_session,
|
|
schan_free_certificate_credentials,
|
|
schan_get_application_protocol,
|
|
schan_get_connection_info,
|
|
schan_get_enabled_protocols,
|
|
schan_get_key_signature_algorithm,
|
|
schan_get_max_message_size,
|
|
schan_get_session_cipher_block_size,
|
|
schan_get_session_peer_certificate,
|
|
schan_get_unique_channel_binding,
|
|
schan_handshake,
|
|
schan_recv,
|
|
schan_send,
|
|
schan_set_application_protocols,
|
|
schan_set_dtls_mtu,
|
|
schan_set_session_target,
|
|
schan_set_session_transport,
|
|
};
|
|
|
|
NTSTATUS CDECL __wine_init_unix_lib( HMODULE module, DWORD reason, const void *ptr_in, void *ptr_out )
|
|
{
|
|
switch (reason)
|
|
{
|
|
case DLL_PROCESS_ATTACH:
|
|
if (!gnutls_initialize()) return STATUS_DLL_NOT_FOUND;
|
|
callbacks = ptr_in;
|
|
*(const struct schan_funcs **)ptr_out = &funcs;
|
|
break;
|
|
case DLL_PROCESS_DETACH:
|
|
if (libgnutls_handle) gnutls_uninitialize();
|
|
break;
|
|
}
|
|
return STATUS_SUCCESS;
|
|
}
|
|
|
|
#endif /* SONAME_LIBGNUTLS */
|