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174 lines
6.8 KiB
C
174 lines
6.8 KiB
C
/* Copyright 2015 Ismael Ferreras Morezuelas <swyterzone+ros@gmail.com>
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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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* --
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*
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* This file transparently wraps lazy-loading hooks in the schannel
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* implementation on top of the PolarSSL/mbedTLS open source library.
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*/
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static void *libmbedtls_handle;
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#define MAKE_FUNCPTR(f) static typeof(f) * p##f;
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MAKE_FUNCPTR(mbedtls_ctr_drbg_free)
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MAKE_FUNCPTR(mbedtls_ctr_drbg_init)
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MAKE_FUNCPTR(mbedtls_ctr_drbg_random)
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MAKE_FUNCPTR(mbedtls_entropy_free)
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MAKE_FUNCPTR(mbedtls_entropy_func)
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MAKE_FUNCPTR(mbedtls_entropy_init)
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MAKE_FUNCPTR(mbedtls_ssl_ciphersuite_from_id)
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MAKE_FUNCPTR(mbedtls_ssl_free)
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MAKE_FUNCPTR(mbedtls_ssl_get_ciphersuite)
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MAKE_FUNCPTR(mbedtls_ssl_get_ciphersuite_id)
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MAKE_FUNCPTR(mbedtls_ssl_get_max_frag_len)
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MAKE_FUNCPTR(mbedtls_ssl_get_version)
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MAKE_FUNCPTR(mbedtls_ssl_handshake)
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MAKE_FUNCPTR(mbedtls_ssl_init)
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MAKE_FUNCPTR(mbedtls_ssl_read)
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MAKE_FUNCPTR(mbedtls_ssl_conf_authmode)
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MAKE_FUNCPTR(mbedtls_ssl_set_bio)
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MAKE_FUNCPTR(mbedtls_ssl_conf_endpoint)
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MAKE_FUNCPTR(mbedtls_ssl_set_hostname)
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MAKE_FUNCPTR(mbedtls_ssl_conf_max_version)
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MAKE_FUNCPTR(mbedtls_ssl_conf_min_version)
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MAKE_FUNCPTR(mbedtls_ssl_conf_rng)
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MAKE_FUNCPTR(mbedtls_ssl_write)
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MAKE_FUNCPTR(mbedtls_ssl_get_peer_cert)
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MAKE_FUNCPTR(mbedtls_ssl_config_init)
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MAKE_FUNCPTR(mbedtls_ssl_config_free)
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MAKE_FUNCPTR(mbedtls_ssl_config_defaults)
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MAKE_FUNCPTR(mbedtls_ssl_conf_dbg)
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MAKE_FUNCPTR(mbedtls_ssl_setup)
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MAKE_FUNCPTR(mbedtls_cipher_info_from_type)
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MAKE_FUNCPTR(mbedtls_md_info_from_type)
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MAKE_FUNCPTR(mbedtls_pk_get_bitlen)
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MAKE_FUNCPTR(mbedtls_ctr_drbg_seed)
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#undef MAKE_FUNCPTR
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/* replace the initialization functions by our own, specially tailored, ones */
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BOOL schan_imp_init(void)
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{
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libmbedtls_handle = wine_dlopen(SONAME_LIBMBEDTLS, RTLD_NOW, NULL, 0);
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if (!libmbedtls_handle)
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{
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WARN("Failed to load the mbedTLS dynamic library (" SONAME_LIBMBEDTLS ").\n");
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return FALSE;
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}
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#define LOAD_FUNCPTR(f) \
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if (!(p##f = wine_dlsym(libmbedtls_handle, #f, NULL, 0))) \
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{ \
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ERR("Failed to retrieve function %s from the mbedTLS dynamic library (" SONAME_LIBMBEDTLS ")\n", #f); \
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goto fail; \
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}
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LOAD_FUNCPTR(mbedtls_ctr_drbg_free)
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LOAD_FUNCPTR(mbedtls_ctr_drbg_init)
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LOAD_FUNCPTR(mbedtls_ctr_drbg_random)
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LOAD_FUNCPTR(mbedtls_entropy_free)
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LOAD_FUNCPTR(mbedtls_entropy_func)
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LOAD_FUNCPTR(mbedtls_entropy_init)
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LOAD_FUNCPTR(mbedtls_ssl_ciphersuite_from_id)
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LOAD_FUNCPTR(mbedtls_ssl_free)
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LOAD_FUNCPTR(mbedtls_ssl_get_ciphersuite)
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LOAD_FUNCPTR(mbedtls_ssl_get_ciphersuite_id)
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LOAD_FUNCPTR(mbedtls_ssl_get_max_frag_len)
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LOAD_FUNCPTR(mbedtls_ssl_get_version)
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LOAD_FUNCPTR(mbedtls_ssl_handshake)
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LOAD_FUNCPTR(mbedtls_ssl_init)
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LOAD_FUNCPTR(mbedtls_ssl_read)
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LOAD_FUNCPTR(mbedtls_ssl_conf_authmode)
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LOAD_FUNCPTR(mbedtls_ssl_set_bio)
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LOAD_FUNCPTR(mbedtls_ssl_conf_endpoint)
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LOAD_FUNCPTR(mbedtls_ssl_set_hostname)
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LOAD_FUNCPTR(mbedtls_ssl_conf_max_version)
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LOAD_FUNCPTR(mbedtls_ssl_conf_min_version)
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LOAD_FUNCPTR(mbedtls_ssl_conf_rng)
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LOAD_FUNCPTR(mbedtls_ssl_write)
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LOAD_FUNCPTR(mbedtls_ssl_get_peer_cert)
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LOAD_FUNCPTR(mbedtls_ssl_config_init)
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LOAD_FUNCPTR(mbedtls_ssl_config_free)
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LOAD_FUNCPTR(mbedtls_ssl_config_defaults)
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LOAD_FUNCPTR(mbedtls_ssl_conf_dbg)
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LOAD_FUNCPTR(mbedtls_ssl_setup)
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LOAD_FUNCPTR(mbedtls_cipher_info_from_type)
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LOAD_FUNCPTR(mbedtls_md_info_from_type)
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LOAD_FUNCPTR(mbedtls_pk_get_bitlen)
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LOAD_FUNCPTR(mbedtls_ctr_drbg_seed)
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#undef LOAD_FUNCPTR
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return TRUE;
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fail:
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wine_dlclose(libmbedtls_handle, NULL, 0);
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libmbedtls_handle = NULL;
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return FALSE;
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}
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void schan_imp_deinit(void)
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{
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wine_dlclose(libmbedtls_handle, NULL, 0);
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libmbedtls_handle = NULL;
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}
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/* now that we have overridden the initialization functions
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cancel out the original stubs used when dynamically linking */
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#define schan_imp_init schan_imp_init_unused
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#define schan_imp_deinit schan_imp_deinit_unused
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/* seamlessly redirect the function pointers with some preprocessor magic */
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#define mbedtls_ctr_drbg_free pmbedtls_ctr_drbg_free
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#define mbedtls_ctr_drbg_init pmbedtls_ctr_drbg_init
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#define mbedtls_ctr_drbg_random pmbedtls_ctr_drbg_random
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#define mbedtls_entropy_free pmbedtls_entropy_free
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#define mbedtls_entropy_func pmbedtls_entropy_func
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#define mbedtls_entropy_init pmbedtls_entropy_init
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#define mbedtls_ssl_ciphersuite_from_id pmbedtls_ssl_ciphersuite_from_id
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#define mbedtls_ssl_free pmbedtls_ssl_free
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#define mbedtls_ssl_get_ciphersuite pmbedtls_ssl_get_ciphersuite
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#define mbedtls_ssl_get_ciphersuite_id pmbedtls_ssl_get_ciphersuite_id
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#define mbedtls_ssl_get_max_frag_len pmbedtls_ssl_get_max_frag_len
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#define mbedtls_ssl_get_version pmbedtls_ssl_get_version
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#define mbedtls_ssl_handshake pmbedtls_ssl_handshake
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#define mbedtls_ssl_init pmbedtls_ssl_init
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#define mbedtls_ssl_read pmbedtls_ssl_read
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#define mbedtls_ssl_conf_authmode pmbedtls_ssl_conf_authmode
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#define mbedtls_ssl_set_bio pmbedtls_ssl_set_bio
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#define mbedtls_ssl_conf_endpoint pmbedtls_ssl_conf_endpoint
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#define mbedtls_ssl_set_hostname pmbedtls_ssl_set_hostname
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#define mbedtls_ssl_conf_max_version pmbedtls_ssl_conf_max_version
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#define mbedtls_ssl_conf_min_version pmbedtls_ssl_conf_min_version
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#define mbedtls_ssl_conf_rng pmbedtls_ssl_conf_rng
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#define mbedtls_ssl_write pmbedtls_ssl_write
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#define mbedtls_ssl_get_peer_cert pmbedtls_ssl_get_peer_cert
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#define mbedtls_ssl_config_init pmbedtls_ssl_config_init
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#define mbedtls_ssl_config_free pmbedtls_ssl_config_free
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#define mbedtls_ssl_config_defaults pmbedtls_ssl_config_defaults
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#define mbedtls_ssl_conf_dbg pmbedtls_ssl_conf_dbg
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#define mbedtls_ssl_setup pmbedtls_ssl_setup
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#define mbedtls_cipher_info_from_type pmbedtls_cipher_info_from_type
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#define mbedtls_md_info_from_type pmbedtls_md_info_from_type
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#define mbedtls_pk_get_bitlen pmbedtls_pk_get_bitlen
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#define mbedtls_ctr_drbg_seed pmbedtls_ctr_drbg_seed |