Sweden-Number/dlls/crypt32/pfx.c

394 lines
11 KiB
C

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