468 lines
14 KiB
C
468 lines
14 KiB
C
/*
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* Copyright 2019 Hans Leidekker for CodeWeavers
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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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#include "config.h"
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#include "wine/port.h"
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#include <stdarg.h>
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#ifdef SONAME_LIBGNUTLS
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#include <gnutls/pkcs12.h>
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#endif
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#include "windef.h"
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#include "winbase.h"
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#include "wincrypt.h"
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#include "snmp.h"
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#include "wine/debug.h"
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#include "wine/heap.h"
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#include "wine/unicode.h"
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WINE_DEFAULT_DEBUG_CHANNEL(crypt);
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#ifdef SONAME_LIBGNUTLS
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WINE_DECLARE_DEBUG_CHANNEL(winediag);
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/* Not present in gnutls version < 3.0 */
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int gnutls_pkcs12_simple_parse(gnutls_pkcs12_t p12, const char *password,
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gnutls_x509_privkey_t *key, gnutls_x509_crt_t **chain, unsigned int *chain_len,
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gnutls_x509_crt_t **extra_certs, unsigned int *extra_certs_len,
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gnutls_x509_crl_t * crl, unsigned int flags);
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int gnutls_x509_privkey_get_pk_algorithm2(gnutls_x509_privkey_t, unsigned int*);
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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_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_perror);
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MAKE_FUNCPTR(gnutls_pkcs12_deinit);
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MAKE_FUNCPTR(gnutls_pkcs12_import);
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MAKE_FUNCPTR(gnutls_pkcs12_init);
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MAKE_FUNCPTR(gnutls_pkcs12_simple_parse);
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MAKE_FUNCPTR(gnutls_x509_crt_export);
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MAKE_FUNCPTR(gnutls_x509_privkey_export_rsa_raw2);
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MAKE_FUNCPTR(gnutls_x509_privkey_get_pk_algorithm2);
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#undef MAKE_FUNCPTR
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static void gnutls_log( int level, const char *msg )
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{
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TRACE( "<%d> %s", level, msg );
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}
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BOOL gnutls_initialize(void)
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{
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int ret;
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if (!(libgnutls_handle = dlopen( SONAME_LIBGNUTLS, RTLD_NOW )))
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{
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ERR_(winediag)( "failed to load libgnutls, no support for pfx import/export\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 = dlsym( libgnutls_handle, #f ))) \
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{ \
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ERR( "failed to load %s\n", #f ); \
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goto fail; \
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}
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LOAD_FUNCPTR(gnutls_global_deinit)
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LOAD_FUNCPTR(gnutls_global_init)
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LOAD_FUNCPTR(gnutls_global_set_log_function)
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LOAD_FUNCPTR(gnutls_global_set_log_level)
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LOAD_FUNCPTR(gnutls_perror)
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LOAD_FUNCPTR(gnutls_pkcs12_deinit)
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LOAD_FUNCPTR(gnutls_pkcs12_import)
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LOAD_FUNCPTR(gnutls_pkcs12_init)
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LOAD_FUNCPTR(gnutls_pkcs12_simple_parse)
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LOAD_FUNCPTR(gnutls_x509_crt_export)
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LOAD_FUNCPTR(gnutls_x509_privkey_export_rsa_raw2)
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LOAD_FUNCPTR(gnutls_x509_privkey_get_pk_algorithm2)
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#undef LOAD_FUNCPTR
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if ((ret = pgnutls_global_init()) != GNUTLS_E_SUCCESS)
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{
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pgnutls_perror( ret );
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goto fail;
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}
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if (TRACE_ON( crypt ))
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{
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pgnutls_global_set_log_level( 4 );
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pgnutls_global_set_log_function( gnutls_log );
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}
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return TRUE;
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fail:
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dlclose( libgnutls_handle );
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libgnutls_handle = NULL;
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return FALSE;
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}
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void gnutls_uninitialize(void)
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{
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pgnutls_global_deinit();
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dlclose( libgnutls_handle );
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libgnutls_handle = NULL;
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}
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#define RSA_MAGIC_KEY ('R' | ('S' << 8) | ('A' << 16) | ('2' << 24))
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#define RSA_PUBEXP 65537
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static HCRYPTPROV import_key( gnutls_x509_privkey_t key, DWORD flags )
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{
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int i, ret;
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unsigned int bitlen;
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gnutls_datum_t m, e, d, p, q, u, e1, e2;
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BLOBHEADER *hdr;
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RSAPUBKEY *rsakey;
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HCRYPTPROV prov = 0;
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HCRYPTKEY cryptkey;
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BYTE *buf, *src, *dst;
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DWORD size;
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if ((ret = pgnutls_x509_privkey_get_pk_algorithm2( key, &bitlen )) < 0)
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{
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pgnutls_perror( ret );
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return 0;
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}
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if (ret != GNUTLS_PK_RSA)
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{
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FIXME( "key algorithm %u not supported\n", ret );
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return 0;
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}
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if ((ret = pgnutls_x509_privkey_export_rsa_raw2( key, &m, &e, &d, &p, &q, &u, &e1, &e2 )) < 0)
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{
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pgnutls_perror( ret );
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return 0;
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}
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size = sizeof(*hdr) + sizeof(*rsakey) + (bitlen * 9 / 16);
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if (!(buf = heap_alloc( size ))) goto done;
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hdr = (BLOBHEADER *)buf;
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hdr->bType = PRIVATEKEYBLOB;
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hdr->bVersion = CUR_BLOB_VERSION;
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hdr->reserved = 0;
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hdr->aiKeyAlg = CALG_RSA_KEYX;
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rsakey = (RSAPUBKEY *)(hdr + 1);
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rsakey->magic = RSA_MAGIC_KEY;
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rsakey->bitlen = bitlen;
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rsakey->pubexp = RSA_PUBEXP;
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dst = (BYTE *)(rsakey + 1);
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if (m.size == bitlen / 8 + 1 && !m.data[0]) src = m.data + 1;
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else if (m.size != bitlen / 8) goto done;
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else src = m.data;
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for (i = bitlen / 8 - 1; i >= 0; i--) *dst++ = src[i];
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if (p.size == bitlen / 16 + 1 && !p.data[0]) src = p.data + 1;
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else if (p.size != bitlen / 16) goto done;
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else src = p.data;
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for (i = bitlen / 16 - 1; i >= 0; i--) *dst++ = src[i];
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if (q.size == bitlen / 16 + 1 && !q.data[0]) src = q.data + 1;
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else if (q.size != bitlen / 16) goto done;
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else src = q.data;
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for (i = bitlen / 16 - 1; i >= 0; i--) *dst++ = src[i];
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if (e1.size == bitlen / 16 + 1 && !e1.data[0]) src = e1.data + 1;
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else if (e1.size != bitlen / 16) goto done;
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else src = e1.data;
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for (i = bitlen / 16 - 1; i >= 0; i--) *dst++ = src[i];
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if (e2.size == bitlen / 16 + 1 && !e2.data[0]) src = e2.data + 1;
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else if (e2.size != bitlen / 16) goto done;
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else src = e2.data;
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for (i = bitlen / 16 - 1; i >= 0; i--) *dst++ = src[i];
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if (u.size == bitlen / 16 + 1 && !u.data[0]) src = u.data + 1;
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else if (u.size != bitlen / 16) goto done;
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else src = u.data;
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for (i = bitlen / 16 - 1; i >= 0; i--) *dst++ = src[i];
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if (d.size == bitlen / 8 + 1 && !d.data[0]) src = d.data + 1;
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else if (d.size != bitlen / 8) goto done;
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else src = d.data;
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for (i = bitlen / 8 - 1; i >= 0; i--) *dst++ = src[i];
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if (!CryptAcquireContextW( &prov, NULL, MS_ENHANCED_PROV_W, PROV_RSA_FULL, CRYPT_NEWKEYSET ))
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{
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if (GetLastError() != NTE_EXISTS) goto done;
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if (!CryptAcquireContextW( &prov, NULL, MS_ENHANCED_PROV_W, PROV_RSA_FULL, 0 ))
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{
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WARN( "CryptAcquireContextW failed %08x\n", GetLastError() );
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goto done;
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}
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}
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if (!CryptImportKey( prov, buf, size, 0, flags, &cryptkey ))
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{
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WARN( "CryptImportKey failed %08x\n", GetLastError() );
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CryptReleaseContext( prov, 0 );
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prov = 0;
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}
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else CryptDestroyKey( cryptkey );
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done:
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free( m.data );
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free( e.data );
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free( d.data );
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free( p.data );
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free( q.data );
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free( u.data );
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free( e1.data );
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free( e2.data );
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heap_free( buf );
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return prov;
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}
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static char *password_to_ascii( const WCHAR *str )
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{
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char *ret;
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unsigned int i = 0;
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if (!(ret = heap_alloc( (strlenW(str) + 1) * sizeof(*ret) ))) return NULL;
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while (*str)
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{
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if (*str > 0x7f) WARN( "password contains non-ascii characters\n" );
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ret[i++] = *str++;
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}
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ret[i] = 0;
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return ret;
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}
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#endif
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static BOOL set_key_context( const void *ctx, HCRYPTPROV prov )
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{
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CERT_KEY_CONTEXT key_ctx;
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key_ctx.cbSize = sizeof(key_ctx);
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key_ctx.hCryptProv = prov;
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key_ctx.dwKeySpec = AT_KEYEXCHANGE;
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return CertSetCertificateContextProperty( ctx, CERT_KEY_CONTEXT_PROP_ID, 0, &key_ctx );
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}
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static WCHAR *get_provider_property( HCRYPTPROV prov, DWORD prop_id, DWORD *len )
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{
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DWORD size = 0;
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WCHAR *ret;
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char *str;
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CryptGetProvParam( prov, prop_id, NULL, &size, 0 );
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if (!size) return NULL;
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if (!(str = CryptMemAlloc( size ))) return NULL;
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CryptGetProvParam( prov, prop_id, (BYTE *)str, &size, 0 );
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*len = MultiByteToWideChar( CP_ACP, 0, str, -1, NULL, 0 );
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if ((ret = CryptMemAlloc( *len * sizeof(WCHAR) ))) MultiByteToWideChar( CP_ACP, 0, str, -1, ret, *len );
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CryptMemFree( str );
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return ret;
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}
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static BOOL set_key_prov_info( const void *ctx, HCRYPTPROV prov )
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{
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CRYPT_KEY_PROV_INFO *prov_info;
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DWORD size, len_container, len_name;
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WCHAR *ptr, *container, *name;
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BOOL ret;
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if (!(container = get_provider_property( prov, PP_CONTAINER, &len_container ))) return FALSE;
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if (!(name = get_provider_property( prov, PP_NAME, &len_name )))
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{
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CryptMemFree( container );
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return FALSE;
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}
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if (!(prov_info = CryptMemAlloc( sizeof(*prov_info) + (len_container + len_name) * sizeof(WCHAR) )))
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{
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CryptMemFree( container );
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CryptMemFree( name );
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return FALSE;
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}
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ptr = (WCHAR *)(prov_info + 1);
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prov_info->pwszContainerName = ptr;
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strcpyW( prov_info->pwszContainerName, container );
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ptr += len_container;
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prov_info->pwszProvName = ptr;
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strcpyW( prov_info->pwszProvName, name );
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size = sizeof(prov_info->dwProvType);
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CryptGetProvParam( prov, PP_PROVTYPE, (BYTE *)&prov_info->dwProvType, &size, 0 );
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prov_info->dwFlags = 0;
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prov_info->cProvParam = 0;
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prov_info->rgProvParam = NULL;
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size = sizeof(prov_info->dwKeySpec);
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CryptGetProvParam( prov, PP_KEYSPEC, (BYTE *)&prov_info->dwKeySpec, &size, 0 );
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ret = CertSetCertificateContextProperty( ctx, CERT_KEY_PROV_INFO_PROP_ID, 0, prov_info );
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CryptMemFree( prov_info );
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CryptMemFree( name );
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CryptMemFree( container );
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return ret;
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}
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HCERTSTORE WINAPI PFXImportCertStore( CRYPT_DATA_BLOB *pfx, const WCHAR *password, DWORD flags )
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{
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#ifdef SONAME_LIBGNUTLS
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gnutls_pkcs12_t p12;
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gnutls_datum_t pfx_data;
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gnutls_x509_privkey_t key;
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gnutls_x509_crt_t *chain;
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unsigned int chain_len, i;
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HCERTSTORE store = NULL;
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HCRYPTPROV prov = 0;
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char *pwd = NULL;
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int ret;
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TRACE( "(%p, %p, %08x)\n", pfx, password, flags );
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if (!pfx)
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{
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SetLastError( ERROR_INVALID_PARAMETER );
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return NULL;
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}
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if (flags & ~(CRYPT_EXPORTABLE|CRYPT_USER_KEYSET|PKCS12_NO_PERSIST_KEY))
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{
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FIXME( "flags %08x not supported\n", flags );
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return NULL;
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}
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if (password && !(pwd = password_to_ascii( password ))) return NULL;
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if ((ret = pgnutls_pkcs12_init( &p12 )) < 0)
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{
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pgnutls_perror( ret );
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goto error;
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}
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pfx_data.data = pfx->pbData;
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pfx_data.size = pfx->cbData;
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if ((ret = pgnutls_pkcs12_import( p12, &pfx_data, GNUTLS_X509_FMT_DER, 0 )) < 0)
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{
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pgnutls_perror( ret );
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goto error;
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}
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if ((ret = pgnutls_pkcs12_simple_parse( p12, pwd ? pwd : "", &key, &chain, &chain_len, NULL, NULL, NULL, 0 )) < 0)
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{
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pgnutls_perror( ret );
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goto error;
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}
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if (!(prov = import_key( key, flags & CRYPT_EXPORTABLE ))) goto error;
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if (!(store = CertOpenStore( CERT_STORE_PROV_MEMORY, 0, 0, 0, NULL )))
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{
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WARN( "CertOpenStore failed %08x\n", GetLastError() );
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goto error;
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}
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if (chain_len > 1) FIXME( "handle certificate chain\n" );
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for (i = 0; i < chain_len; i++)
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{
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const void *ctx;
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BYTE *crt_data;
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size_t size = 0;
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if ((ret = pgnutls_x509_crt_export( chain[i], GNUTLS_X509_FMT_DER, NULL, &size )) != GNUTLS_E_SHORT_MEMORY_BUFFER)
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{
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pgnutls_perror( ret );
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goto error;
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}
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if (!(crt_data = heap_alloc( size ))) goto error;
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if ((ret = pgnutls_x509_crt_export( chain[i], GNUTLS_X509_FMT_DER, crt_data, &size )) < 0)
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{
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pgnutls_perror( ret );
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heap_free( crt_data );
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goto error;
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}
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if (!(ctx = CertCreateContext( CERT_STORE_CERTIFICATE_CONTEXT, X509_ASN_ENCODING, crt_data, size, 0, NULL )))
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{
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WARN( "CertCreateContext failed %08x\n", GetLastError() );
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heap_free( crt_data );
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goto error;
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}
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heap_free( crt_data );
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if (flags & PKCS12_NO_PERSIST_KEY)
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{
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if (!set_key_context( ctx, prov ))
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{
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WARN( "failed to set context property %08x\n", GetLastError() );
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CertFreeCertificateContext( ctx );
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goto error;
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}
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}
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else if (!set_key_prov_info( ctx, prov ))
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{
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WARN( "failed to set provider info property %08x\n", GetLastError() );
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CertFreeCertificateContext( ctx );
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goto error;
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}
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if (!CertAddCertificateContextToStore( store, ctx, CERT_STORE_ADD_ALWAYS, NULL ))
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{
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WARN( "CertAddCertificateContextToStore failed %08x\n", GetLastError() );
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CertFreeCertificateContext( ctx );
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goto error;
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}
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CertFreeCertificateContext( ctx );
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}
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pgnutls_pkcs12_deinit( p12 );
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return store;
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error:
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CryptReleaseContext( prov, 0 );
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CertCloseStore( store, 0 );
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pgnutls_pkcs12_deinit( p12 );
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heap_free( pwd );
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return NULL;
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#endif
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FIXME( "(%p, %p, %08x)\n", pfx, password, flags );
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return NULL;
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}
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BOOL WINAPI PFXVerifyPassword( CRYPT_DATA_BLOB *pfx, const WCHAR *password, DWORD flags )
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{
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FIXME( "(%p, %p, %08x): stub\n", pfx, password, flags );
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return FALSE;
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}
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BOOL WINAPI PFXExportCertStore( HCERTSTORE store, CRYPT_DATA_BLOB *pfx, const WCHAR *password, DWORD flags )
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{
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return PFXExportCertStoreEx( store, pfx, password, NULL, flags );
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}
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BOOL WINAPI PFXExportCertStoreEx( HCERTSTORE store, CRYPT_DATA_BLOB *pfx, const WCHAR *password, void *reserved,
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DWORD flags )
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{
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FIXME( "(%p, %p, %p, %p, %08x): stub\n", store, pfx, password, reserved, flags );
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return FALSE;
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}
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