reactos/dll/win32/schannel/schannel_mbedtls_lazyload.h

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6.8 KiB
C

/* Copyright 2015 Ismael Ferreras Morezuelas <swyterzone+ros@gmail.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
*
* --
*
* This file transparently wraps lazy-loading hooks in the schannel
* implementation on top of the PolarSSL/mbedTLS open source library.
*/
static void *libmbedtls_handle;
#define MAKE_FUNCPTR(f) static typeof(f) * p##f;
MAKE_FUNCPTR(mbedtls_ctr_drbg_free)
MAKE_FUNCPTR(mbedtls_ctr_drbg_init)
MAKE_FUNCPTR(mbedtls_ctr_drbg_random)
MAKE_FUNCPTR(mbedtls_entropy_free)
MAKE_FUNCPTR(mbedtls_entropy_func)
MAKE_FUNCPTR(mbedtls_entropy_init)
MAKE_FUNCPTR(mbedtls_ssl_ciphersuite_from_id)
MAKE_FUNCPTR(mbedtls_ssl_free)
MAKE_FUNCPTR(mbedtls_ssl_get_ciphersuite)
MAKE_FUNCPTR(mbedtls_ssl_get_ciphersuite_id)
MAKE_FUNCPTR(mbedtls_ssl_get_max_frag_len)
MAKE_FUNCPTR(mbedtls_ssl_get_version)
MAKE_FUNCPTR(mbedtls_ssl_handshake)
MAKE_FUNCPTR(mbedtls_ssl_init)
MAKE_FUNCPTR(mbedtls_ssl_read)
MAKE_FUNCPTR(mbedtls_ssl_conf_authmode)
MAKE_FUNCPTR(mbedtls_ssl_set_bio)
MAKE_FUNCPTR(mbedtls_ssl_conf_endpoint)
MAKE_FUNCPTR(mbedtls_ssl_set_hostname)
MAKE_FUNCPTR(mbedtls_ssl_conf_max_version)
MAKE_FUNCPTR(mbedtls_ssl_conf_min_version)
MAKE_FUNCPTR(mbedtls_ssl_conf_rng)
MAKE_FUNCPTR(mbedtls_ssl_write)
MAKE_FUNCPTR(mbedtls_ssl_get_peer_cert)
MAKE_FUNCPTR(mbedtls_ssl_config_init)
MAKE_FUNCPTR(mbedtls_ssl_config_free)
MAKE_FUNCPTR(mbedtls_ssl_config_defaults)
MAKE_FUNCPTR(mbedtls_ssl_conf_dbg)
MAKE_FUNCPTR(mbedtls_ssl_setup)
MAKE_FUNCPTR(mbedtls_cipher_info_from_type)
MAKE_FUNCPTR(mbedtls_md_info_from_type)
MAKE_FUNCPTR(mbedtls_pk_get_bitlen)
MAKE_FUNCPTR(mbedtls_ctr_drbg_seed)
#undef MAKE_FUNCPTR
/* replace the initialization functions by our own, specially tailored, ones */
BOOL schan_imp_init(void)
{
libmbedtls_handle = wine_dlopen(SONAME_LIBMBEDTLS, RTLD_NOW, NULL, 0);
if (!libmbedtls_handle)
{
WARN("Failed to load the mbedTLS dynamic library (" SONAME_LIBMBEDTLS ").\n");
return FALSE;
}
#define LOAD_FUNCPTR(f) \
if (!(p##f = wine_dlsym(libmbedtls_handle, #f, NULL, 0))) \
{ \
ERR("Failed to retrieve function %s from the mbedTLS dynamic library (" SONAME_LIBMBEDTLS ")\n", #f); \
goto fail; \
}
LOAD_FUNCPTR(mbedtls_ctr_drbg_free)
LOAD_FUNCPTR(mbedtls_ctr_drbg_init)
LOAD_FUNCPTR(mbedtls_ctr_drbg_random)
LOAD_FUNCPTR(mbedtls_entropy_free)
LOAD_FUNCPTR(mbedtls_entropy_func)
LOAD_FUNCPTR(mbedtls_entropy_init)
LOAD_FUNCPTR(mbedtls_ssl_ciphersuite_from_id)
LOAD_FUNCPTR(mbedtls_ssl_free)
LOAD_FUNCPTR(mbedtls_ssl_get_ciphersuite)
LOAD_FUNCPTR(mbedtls_ssl_get_ciphersuite_id)
LOAD_FUNCPTR(mbedtls_ssl_get_max_frag_len)
LOAD_FUNCPTR(mbedtls_ssl_get_version)
LOAD_FUNCPTR(mbedtls_ssl_handshake)
LOAD_FUNCPTR(mbedtls_ssl_init)
LOAD_FUNCPTR(mbedtls_ssl_read)
LOAD_FUNCPTR(mbedtls_ssl_conf_authmode)
LOAD_FUNCPTR(mbedtls_ssl_set_bio)
LOAD_FUNCPTR(mbedtls_ssl_conf_endpoint)
LOAD_FUNCPTR(mbedtls_ssl_set_hostname)
LOAD_FUNCPTR(mbedtls_ssl_conf_max_version)
LOAD_FUNCPTR(mbedtls_ssl_conf_min_version)
LOAD_FUNCPTR(mbedtls_ssl_conf_rng)
LOAD_FUNCPTR(mbedtls_ssl_write)
LOAD_FUNCPTR(mbedtls_ssl_get_peer_cert)
LOAD_FUNCPTR(mbedtls_ssl_config_init)
LOAD_FUNCPTR(mbedtls_ssl_config_free)
LOAD_FUNCPTR(mbedtls_ssl_config_defaults)
LOAD_FUNCPTR(mbedtls_ssl_conf_dbg)
LOAD_FUNCPTR(mbedtls_ssl_setup)
LOAD_FUNCPTR(mbedtls_cipher_info_from_type)
LOAD_FUNCPTR(mbedtls_md_info_from_type)
LOAD_FUNCPTR(mbedtls_pk_get_bitlen)
LOAD_FUNCPTR(mbedtls_ctr_drbg_seed)
#undef LOAD_FUNCPTR
return TRUE;
fail:
wine_dlclose(libmbedtls_handle, NULL, 0);
libmbedtls_handle = NULL;
return FALSE;
}
void schan_imp_deinit(void)
{
wine_dlclose(libmbedtls_handle, NULL, 0);
libmbedtls_handle = NULL;
}
/* now that we have overridden the initialization functions
cancel out the original stubs used when dynamically linking */
#define schan_imp_init schan_imp_init_unused
#define schan_imp_deinit schan_imp_deinit_unused
/* seamlessly redirect the function pointers with some preprocessor magic */
#define mbedtls_ctr_drbg_free pmbedtls_ctr_drbg_free
#define mbedtls_ctr_drbg_init pmbedtls_ctr_drbg_init
#define mbedtls_ctr_drbg_random pmbedtls_ctr_drbg_random
#define mbedtls_entropy_free pmbedtls_entropy_free
#define mbedtls_entropy_func pmbedtls_entropy_func
#define mbedtls_entropy_init pmbedtls_entropy_init
#define mbedtls_ssl_ciphersuite_from_id pmbedtls_ssl_ciphersuite_from_id
#define mbedtls_ssl_free pmbedtls_ssl_free
#define mbedtls_ssl_get_ciphersuite pmbedtls_ssl_get_ciphersuite
#define mbedtls_ssl_get_ciphersuite_id pmbedtls_ssl_get_ciphersuite_id
#define mbedtls_ssl_get_max_frag_len pmbedtls_ssl_get_max_frag_len
#define mbedtls_ssl_get_version pmbedtls_ssl_get_version
#define mbedtls_ssl_handshake pmbedtls_ssl_handshake
#define mbedtls_ssl_init pmbedtls_ssl_init
#define mbedtls_ssl_read pmbedtls_ssl_read
#define mbedtls_ssl_conf_authmode pmbedtls_ssl_conf_authmode
#define mbedtls_ssl_set_bio pmbedtls_ssl_set_bio
#define mbedtls_ssl_conf_endpoint pmbedtls_ssl_conf_endpoint
#define mbedtls_ssl_set_hostname pmbedtls_ssl_set_hostname
#define mbedtls_ssl_conf_max_version pmbedtls_ssl_conf_max_version
#define mbedtls_ssl_conf_min_version pmbedtls_ssl_conf_min_version
#define mbedtls_ssl_conf_rng pmbedtls_ssl_conf_rng
#define mbedtls_ssl_write pmbedtls_ssl_write
#define mbedtls_ssl_get_peer_cert pmbedtls_ssl_get_peer_cert
#define mbedtls_ssl_config_init pmbedtls_ssl_config_init
#define mbedtls_ssl_config_free pmbedtls_ssl_config_free
#define mbedtls_ssl_config_defaults pmbedtls_ssl_config_defaults
#define mbedtls_ssl_conf_dbg pmbedtls_ssl_conf_dbg
#define mbedtls_ssl_setup pmbedtls_ssl_setup
#define mbedtls_cipher_info_from_type pmbedtls_cipher_info_from_type
#define mbedtls_md_info_from_type pmbedtls_md_info_from_type
#define mbedtls_pk_get_bitlen pmbedtls_pk_get_bitlen
#define mbedtls_ctr_drbg_seed pmbedtls_ctr_drbg_seed