Sweden-Number/dlls/crypt32/object.c

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/*
* crypt32 Crypt*Object functions
*
* Copyright 2007 Juan Lang
*
* 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 <stdarg.h>
#include "windef.h"
#include "winbase.h"
#include "wincrypt.h"
#include "imagehlp.h"
#include "crypt32_private.h"
#include "wine/debug.h"
WINE_DEFAULT_DEBUG_CHANNEL(crypt);
static BOOL CRYPT_ReadBlobFromFile(LPCWSTR fileName, PCERT_BLOB blob)
{
BOOL ret = FALSE;
HANDLE file;
TRACE("%s\n", debugstr_w(fileName));
file = CreateFileW(fileName, GENERIC_READ, FILE_SHARE_READ, NULL,
OPEN_EXISTING, 0, NULL);
if (file != INVALID_HANDLE_VALUE)
{
ret = TRUE;
blob->cbData = GetFileSize(file, NULL);
if (blob->cbData)
{
blob->pbData = CryptMemAlloc(blob->cbData);
if (blob->pbData)
{
DWORD read;
ret = ReadFile(file, blob->pbData, blob->cbData, &read, NULL);
}
}
CloseHandle(file);
}
TRACE("returning %d\n", ret);
return ret;
}
static BOOL CRYPT_QueryContextObject(DWORD dwObjectType, const void *pvObject,
DWORD dwExpectedContentTypeFlags, DWORD *pdwMsgAndCertEncodingType,
DWORD *pdwContentType, HCERTSTORE *phCertStore, const void **ppvContext)
{
CERT_BLOB fileBlob;
const CERT_BLOB *blob;
HCERTSTORE store;
DWORD contentType;
BOOL ret;
switch (dwObjectType)
{
case CERT_QUERY_OBJECT_FILE:
/* Cert, CRL, and CTL contexts can't be "embedded" in a file, so
* just read the file directly
*/
ret = CRYPT_ReadBlobFromFile((LPCWSTR)pvObject, &fileBlob);
blob = &fileBlob;
break;
case CERT_QUERY_OBJECT_BLOB:
blob = (const CERT_BLOB *)pvObject;
ret = TRUE;
break;
default:
SetLastError(E_INVALIDARG); /* FIXME: is this the correct error? */
ret = FALSE;
}
if (!ret)
return FALSE;
store = CertOpenStore(CERT_STORE_PROV_MEMORY, 0, 0,
CERT_STORE_CREATE_NEW_FLAG, NULL);
ret = FALSE;
if (dwExpectedContentTypeFlags & CERT_QUERY_CONTENT_FLAG_CERT)
{
ret = pCertInterface->addEncodedToStore(store, X509_ASN_ENCODING,
blob->pbData, blob->cbData, CERT_STORE_ADD_ALWAYS, ppvContext);
if (ret)
contentType = CERT_QUERY_CONTENT_CERT;
}
if (!ret && (dwExpectedContentTypeFlags & CERT_QUERY_CONTENT_FLAG_CRL))
{
ret = pCRLInterface->addEncodedToStore(store, X509_ASN_ENCODING,
blob->pbData, blob->cbData, CERT_STORE_ADD_ALWAYS, ppvContext);
if (ret)
contentType = CERT_QUERY_CONTENT_CRL;
}
if (!ret && (dwExpectedContentTypeFlags & CERT_QUERY_CONTENT_FLAG_CTL))
{
ret = pCTLInterface->addEncodedToStore(store, X509_ASN_ENCODING,
blob->pbData, blob->cbData, CERT_STORE_ADD_ALWAYS, ppvContext);
if (ret)
contentType = CERT_QUERY_CONTENT_CTL;
}
if (ret)
{
if (pdwMsgAndCertEncodingType)
*pdwMsgAndCertEncodingType = X509_ASN_ENCODING;
if (pdwContentType)
*pdwContentType = contentType;
if (phCertStore)
*phCertStore = CertDuplicateStore(store);
}
CertCloseStore(store, 0);
if (blob == &fileBlob)
CryptMemFree(blob->pbData);
TRACE("returning %d\n", ret);
return ret;
}
static BOOL CRYPT_QuerySerializedContextObject(DWORD dwObjectType,
const void *pvObject, DWORD dwExpectedContentTypeFlags,
DWORD *pdwMsgAndCertEncodingType, DWORD *pdwContentType,
HCERTSTORE *phCertStore, const void **ppvContext)
{
CERT_BLOB fileBlob;
const CERT_BLOB *blob;
const WINE_CONTEXT_INTERFACE *contextInterface = NULL;
const void *context;
DWORD contextType;
BOOL ret;
switch (dwObjectType)
{
case CERT_QUERY_OBJECT_FILE:
/* Cert, CRL, and CTL contexts can't be "embedded" in a file, so
* just read the file directly
*/
ret = CRYPT_ReadBlobFromFile((LPCWSTR)pvObject, &fileBlob);
blob = &fileBlob;
break;
case CERT_QUERY_OBJECT_BLOB:
blob = (const CERT_BLOB *)pvObject;
ret = TRUE;
break;
default:
SetLastError(E_INVALIDARG); /* FIXME: is this the correct error? */
ret = FALSE;
}
if (!ret)
return FALSE;
context = CRYPT_ReadSerializedElement(blob->pbData, blob->cbData,
CERT_STORE_ALL_CONTEXT_FLAG, &contextType);
if (context)
{
DWORD contentType, certStoreOffset;
ret = TRUE;
switch (contextType)
{
case CERT_STORE_CERTIFICATE_CONTEXT:
contextInterface = pCertInterface;
contentType = CERT_QUERY_CONTENT_SERIALIZED_CERT;
certStoreOffset = offsetof(CERT_CONTEXT, hCertStore);
if (!(dwExpectedContentTypeFlags &
CERT_QUERY_CONTENT_FLAG_SERIALIZED_CERT))
{
SetLastError(ERROR_INVALID_DATA);
ret = FALSE;
goto end;
}
break;
case CERT_STORE_CRL_CONTEXT:
contextInterface = pCRLInterface;
contentType = CERT_QUERY_CONTENT_SERIALIZED_CRL;
certStoreOffset = offsetof(CRL_CONTEXT, hCertStore);
if (!(dwExpectedContentTypeFlags &
CERT_QUERY_CONTENT_FLAG_SERIALIZED_CRL))
{
SetLastError(ERROR_INVALID_DATA);
ret = FALSE;
goto end;
}
break;
case CERT_STORE_CTL_CONTEXT:
contextInterface = pCTLInterface;
contentType = CERT_QUERY_CONTENT_SERIALIZED_CTL;
certStoreOffset = offsetof(CTL_CONTEXT, hCertStore);
if (!(dwExpectedContentTypeFlags &
CERT_QUERY_CONTENT_FLAG_SERIALIZED_CTL))
{
SetLastError(ERROR_INVALID_DATA);
ret = FALSE;
goto end;
}
break;
default:
SetLastError(ERROR_INVALID_DATA);
ret = FALSE;
goto end;
}
if (pdwMsgAndCertEncodingType)
*pdwMsgAndCertEncodingType = X509_ASN_ENCODING;
if (pdwContentType)
*pdwContentType = contentType;
if (phCertStore)
*phCertStore = CertDuplicateStore(
*(HCERTSTORE *)((const BYTE *)context + certStoreOffset));
if (ppvContext)
*ppvContext = contextInterface->duplicate(context);
}
end:
if (contextInterface && context)
contextInterface->free(context);
if (blob == &fileBlob)
CryptMemFree(blob->pbData);
TRACE("returning %d\n", ret);
return ret;
}
static BOOL CRYPT_QuerySerializedStoreObject(DWORD dwObjectType,
const void *pvObject, DWORD *pdwMsgAndCertEncodingType, DWORD *pdwContentType,
HCERTSTORE *phCertStore, HCRYPTMSG *phMsg)
{
LPCWSTR fileName = (LPCWSTR)pvObject;
HANDLE file;
BOOL ret = FALSE;
if (dwObjectType != CERT_QUERY_OBJECT_FILE)
{
FIXME("unimplemented for non-file type %d\n", dwObjectType);
SetLastError(E_INVALIDARG); /* FIXME: is this the correct error? */
return FALSE;
}
TRACE("%s\n", debugstr_w(fileName));
file = CreateFileW(fileName, GENERIC_READ, FILE_SHARE_READ, NULL,
OPEN_EXISTING, 0, NULL);
if (file != INVALID_HANDLE_VALUE)
{
HCERTSTORE store = CertOpenStore(CERT_STORE_PROV_MEMORY, 0, 0,
CERT_STORE_CREATE_NEW_FLAG, NULL);
2007-09-27 20:54:24 +02:00
ret = CRYPT_ReadSerializedStoreFromFile(file, store);
if (ret)
{
if (pdwMsgAndCertEncodingType)
*pdwMsgAndCertEncodingType = X509_ASN_ENCODING;
if (pdwContentType)
*pdwContentType = CERT_QUERY_CONTENT_SERIALIZED_STORE;
if (phCertStore)
*phCertStore = CertDuplicateStore(store);
}
CertCloseStore(store, 0);
CloseHandle(file);
}
TRACE("returning %d\n", ret);
return ret;
}
/* Used to decode non-embedded messages */
static BOOL CRYPT_QueryMessageObject(DWORD dwObjectType, const void *pvObject,
DWORD dwExpectedContentTypeFlags, DWORD *pdwMsgAndCertEncodingType,
DWORD *pdwContentType, HCERTSTORE *phCertStore, HCRYPTMSG *phMsg)
{
CERT_BLOB fileBlob;
const CERT_BLOB *blob;
BOOL ret;
HCRYPTMSG msg = NULL;
DWORD encodingType = X509_ASN_ENCODING | PKCS_7_ASN_ENCODING;
switch (dwObjectType)
{
case CERT_QUERY_OBJECT_FILE:
/* This isn't an embedded PKCS7 message, so just read the file
* directly
*/
ret = CRYPT_ReadBlobFromFile((LPCWSTR)pvObject, &fileBlob);
blob = &fileBlob;
break;
case CERT_QUERY_OBJECT_BLOB:
blob = (const CERT_BLOB *)pvObject;
ret = TRUE;
break;
default:
SetLastError(E_INVALIDARG); /* FIXME: is this the correct error? */
ret = FALSE;
}
if (!ret)
return FALSE;
ret = FALSE;
/* Try it first as a PKCS content info */
if ((dwExpectedContentTypeFlags & CERT_QUERY_CONTENT_FLAG_PKCS7_SIGNED) ||
(dwExpectedContentTypeFlags & CERT_QUERY_CONTENT_FLAG_PKCS7_UNSIGNED))
{
msg = CryptMsgOpenToDecode(encodingType, 0, 0, 0, NULL, NULL);
if (msg)
{
ret = CryptMsgUpdate(msg, blob->pbData, blob->cbData, TRUE);
if (ret)
{
DWORD type, len = sizeof(type);
ret = CryptMsgGetParam(msg, CMSG_TYPE_PARAM, 0, &type, &len);
if (ret)
{
if ((dwExpectedContentTypeFlags &
CERT_QUERY_CONTENT_FLAG_PKCS7_SIGNED))
{
if (type != CMSG_SIGNED)
{
SetLastError(ERROR_INVALID_DATA);
ret = FALSE;
}
else if (pdwContentType)
*pdwContentType = CERT_QUERY_CONTENT_PKCS7_SIGNED;
}
else if ((dwExpectedContentTypeFlags &
CERT_QUERY_CONTENT_FLAG_PKCS7_UNSIGNED))
{
if (type != CMSG_DATA)
{
SetLastError(ERROR_INVALID_DATA);
ret = FALSE;
}
else if (pdwContentType)
*pdwContentType = CERT_QUERY_CONTENT_PKCS7_UNSIGNED;
}
}
}
if (!ret)
{
CryptMsgClose(msg);
msg = NULL;
}
}
}
/* Failing that, try explicitly typed messages */
if (!ret &&
(dwExpectedContentTypeFlags & CERT_QUERY_CONTENT_FLAG_PKCS7_SIGNED))
{
msg = CryptMsgOpenToDecode(encodingType, 0, CMSG_SIGNED, 0, NULL, NULL);
if (msg)
{
ret = CryptMsgUpdate(msg, blob->pbData, blob->cbData, TRUE);
if (!ret)
{
CryptMsgClose(msg);
msg = NULL;
}
}
if (msg && pdwContentType)
*pdwContentType = CERT_QUERY_CONTENT_PKCS7_SIGNED;
}
if (!ret &&
(dwExpectedContentTypeFlags & CERT_QUERY_CONTENT_FLAG_PKCS7_UNSIGNED))
{
msg = CryptMsgOpenToDecode(encodingType, 0, CMSG_DATA, 0, NULL, NULL);
if (msg)
{
ret = CryptMsgUpdate(msg, blob->pbData, blob->cbData, TRUE);
if (!ret)
{
CryptMsgClose(msg);
msg = NULL;
}
}
if (msg && pdwContentType)
*pdwContentType = CERT_QUERY_CONTENT_PKCS7_UNSIGNED;
}
if (pdwMsgAndCertEncodingType)
*pdwMsgAndCertEncodingType = encodingType;
if (msg)
{
if (phMsg)
*phMsg = msg;
if (phCertStore)
*phCertStore = CertOpenStore(CERT_STORE_PROV_MSG, encodingType, 0,
0, msg);
}
if (blob == &fileBlob)
CryptMemFree(blob->pbData);
TRACE("returning %d\n", ret);
return ret;
}
static BOOL CRYPT_QueryEmbeddedMessageObject(DWORD dwObjectType,
const void *pvObject, DWORD dwExpectedContentTypeFlags,
DWORD *pdwMsgAndCertEncodingType, DWORD *pdwContentType,
HCERTSTORE *phCertStore, HCRYPTMSG *phMsg)
{
HANDLE file;
BOOL ret = FALSE;
if (dwObjectType != CERT_QUERY_OBJECT_FILE)
{
FIXME("don't know what to do for type %d embedded signed messages\n",
dwObjectType);
SetLastError(E_INVALIDARG);
return FALSE;
}
file = CreateFileW((LPCWSTR)pvObject, GENERIC_READ, FILE_SHARE_READ,
NULL, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL);
if (file != INVALID_HANDLE_VALUE)
{
DWORD len = 0;
ret = ImageGetCertificateData(file, 0, NULL, &len);
if (GetLastError() == ERROR_INSUFFICIENT_BUFFER)
{
WIN_CERTIFICATE *winCert = HeapAlloc(GetProcessHeap(), 0, len);
if (winCert)
{
ret = ImageGetCertificateData(file, 0, winCert, &len);
if (ret)
{
CERT_BLOB blob = { winCert->dwLength,
winCert->bCertificate };
ret = CRYPT_QueryMessageObject(CERT_QUERY_OBJECT_BLOB,
&blob, CERT_QUERY_CONTENT_FLAG_PKCS7_SIGNED,
pdwMsgAndCertEncodingType, NULL, phCertStore, phMsg);
if (ret && pdwContentType)
*pdwContentType = CERT_QUERY_CONTENT_FLAG_PKCS7_SIGNED;
}
HeapFree(GetProcessHeap(), 0, winCert);
}
}
CloseHandle(file);
}
TRACE("returning %d\n", ret);
return ret;
}
BOOL WINAPI CryptQueryObject(DWORD dwObjectType, const void *pvObject,
DWORD dwExpectedContentTypeFlags, DWORD dwExpectedFormatTypeFlags,
DWORD dwFlags, DWORD *pdwMsgAndCertEncodingType, DWORD *pdwContentType,
DWORD *pdwFormatType, HCERTSTORE *phCertStore, HCRYPTMSG *phMsg,
const void **ppvContext)
{
static const DWORD unimplementedTypes =
CERT_QUERY_CONTENT_FLAG_PKCS10 | CERT_QUERY_CONTENT_FLAG_PFX |
CERT_QUERY_CONTENT_FLAG_CERT_PAIR;
BOOL ret = TRUE;
TRACE("(%08x, %p, %08x, %08x, %08x, %p, %p, %p, %p, %p, %p)\n",
dwObjectType, pvObject, dwExpectedContentTypeFlags,
dwExpectedFormatTypeFlags, dwFlags, pdwMsgAndCertEncodingType,
pdwContentType, pdwFormatType, phCertStore, phMsg, ppvContext);
if (dwExpectedContentTypeFlags & unimplementedTypes)
WARN("unimplemented for types %08x\n",
dwExpectedContentTypeFlags & unimplementedTypes);
if (!(dwExpectedFormatTypeFlags & CERT_QUERY_FORMAT_FLAG_BINARY))
{
FIXME("unimplemented for anything but binary\n");
SetLastError(ERROR_CALL_NOT_IMPLEMENTED);
return FALSE;
}
if (pdwFormatType)
*pdwFormatType = CERT_QUERY_FORMAT_BINARY;
if (phCertStore)
*phCertStore = NULL;
if (phMsg)
*phMsg = NULL;
if (ppvContext)
*ppvContext = NULL;
ret = FALSE;
if ((dwExpectedContentTypeFlags & CERT_QUERY_CONTENT_FLAG_CERT) ||
(dwExpectedContentTypeFlags & CERT_QUERY_CONTENT_FLAG_CRL) ||
(dwExpectedContentTypeFlags & CERT_QUERY_CONTENT_FLAG_CTL))
{
ret = CRYPT_QueryContextObject(dwObjectType, pvObject,
dwExpectedContentTypeFlags, pdwMsgAndCertEncodingType, pdwContentType,
phCertStore, ppvContext);
}
if (!ret &&
(dwExpectedContentTypeFlags & CERT_QUERY_CONTENT_FLAG_SERIALIZED_STORE))
{
ret = CRYPT_QuerySerializedStoreObject(dwObjectType, pvObject,
pdwMsgAndCertEncodingType, pdwContentType, phCertStore, phMsg);
}
if (!ret &&
((dwExpectedContentTypeFlags & CERT_QUERY_CONTENT_FLAG_SERIALIZED_CERT) ||
(dwExpectedContentTypeFlags & CERT_QUERY_CONTENT_FLAG_SERIALIZED_CRL) ||
(dwExpectedContentTypeFlags & CERT_QUERY_CONTENT_FLAG_SERIALIZED_CTL)))
{
ret = CRYPT_QuerySerializedContextObject(dwObjectType, pvObject,
dwExpectedContentTypeFlags, pdwMsgAndCertEncodingType, pdwContentType,
phCertStore, ppvContext);
}
if (!ret &&
((dwExpectedContentTypeFlags & CERT_QUERY_CONTENT_FLAG_PKCS7_SIGNED) ||
(dwExpectedContentTypeFlags & CERT_QUERY_CONTENT_FLAG_PKCS7_UNSIGNED)))
{
ret = CRYPT_QueryMessageObject(dwObjectType, pvObject,
dwExpectedContentTypeFlags, pdwMsgAndCertEncodingType, pdwContentType,
phCertStore, phMsg);
}
if (!ret &&
(dwExpectedContentTypeFlags & CERT_QUERY_CONTENT_FLAG_PKCS7_SIGNED_EMBED))
{
ret = CRYPT_QueryEmbeddedMessageObject(dwObjectType, pvObject,
dwExpectedContentTypeFlags, pdwMsgAndCertEncodingType, pdwContentType,
phCertStore, phMsg);
}
TRACE("returning %d\n", ret);
return ret;
}