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crypt32: Support reading a serialized store object from memory in CryptQueryObject.

This commit is contained in:
Juan Lang 2009-10-29 16:48:52 -07:00 committed by Alexandre Julliard
parent 51a1f5a642
commit 9928e2e1c5
3 changed files with 83 additions and 9 deletions
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6
dlls/crypt32/crypt32_private.h
View File

@ -282,6 +282,12 @@ const void *CRYPT_ReadSerializedElement(const BYTE *pbElement,
*/
BOOL CRYPT_ReadSerializedStoreFromFile(HANDLE file, HCERTSTORE store);
/* Reads contexts serialized in the blob into the memory store. Returns FALSE
* if the file is not of the expected format.
*/
BOOL CRYPT_ReadSerializedStoreFromBlob(const CRYPT_DATA_BLOB *blob,
HCERTSTORE store);
/* Fixes up the pointers in info, where info is assumed to be a
* CRYPT_KEY_PROV_INFO, followed by its container name, provider name, and any
* provider parameters, in a contiguous buffer, but where info's pointers are

55
dlls/crypt32/object.c
View File

@ -283,20 +283,13 @@ end:
return ret;
}
static BOOL CRYPT_QuerySerializedStoreObject(DWORD dwObjectType,
const void *pvObject, DWORD *pdwMsgAndCertEncodingType, DWORD *pdwContentType,
static BOOL CRYPT_QuerySerializedStoreFromFile(LPCWSTR fileName,
DWORD *pdwMsgAndCertEncodingType, DWORD *pdwContentType,
HCERTSTORE *phCertStore, HCRYPTMSG *phMsg)
{
LPCWSTR fileName = 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);
@ -322,6 +315,50 @@ static BOOL CRYPT_QuerySerializedStoreObject(DWORD dwObjectType,
return ret;
}
static BOOL CRYPT_QuerySerializedStoreFromBlob(const CRYPT_DATA_BLOB *blob,
DWORD *pdwMsgAndCertEncodingType, DWORD *pdwContentType,
HCERTSTORE *phCertStore, HCRYPTMSG *phMsg)
{
HCERTSTORE store = CertOpenStore(CERT_STORE_PROV_MEMORY, 0, 0,
CERT_STORE_CREATE_NEW_FLAG, NULL);
BOOL ret;
TRACE("(%d, %p)\n", blob->cbData, blob->pbData);
ret = CRYPT_ReadSerializedStoreFromBlob(blob, 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);
TRACE("returning %d\n", ret);
return ret;
}
static BOOL CRYPT_QuerySerializedStoreObject(DWORD dwObjectType,
const void *pvObject, DWORD *pdwMsgAndCertEncodingType, DWORD *pdwContentType,
HCERTSTORE *phCertStore, HCRYPTMSG *phMsg)
{
switch (dwObjectType)
{
case CERT_QUERY_OBJECT_FILE:
return CRYPT_QuerySerializedStoreFromFile(pvObject,
pdwMsgAndCertEncodingType, pdwContentType, phCertStore, phMsg);
case CERT_QUERY_OBJECT_BLOB:
return CRYPT_QuerySerializedStoreFromBlob(pvObject,
pdwMsgAndCertEncodingType, pdwContentType, phCertStore, phMsg);
default:
FIXME("unimplemented for type %d\n", dwObjectType);
SetLastError(E_INVALIDARG); /* FIXME: is this the correct error? */
return FALSE;
}
}
static BOOL CRYPT_QuerySignedMessage(const CRYPT_DATA_BLOB *blob,
DWORD *pdwMsgAndCertEncodingType, DWORD *pdwContentType, HCRYPTMSG *phMsg)
{

31
dlls/crypt32/serialize.c
View File

@ -534,6 +534,37 @@ BOOL CRYPT_ReadSerializedStoreFromFile(HANDLE file, HCERTSTORE store)
return CRYPT_ReadSerializedStore(file, read_file_wrapper, store);
}
struct BlobReader
{
const CRYPT_DATA_BLOB *blob;
DWORD current;
};
static BOOL read_blob_wrapper(void *handle, void *buffer, DWORD bytesToRead,
DWORD *bytesRead)
{
struct BlobReader *reader = handle;
BOOL ret;
if (reader->current < reader->blob->cbData)
{
*bytesRead = min(bytesToRead, reader->blob->cbData - reader->current);
memcpy(buffer, reader->blob->pbData + reader->current, *bytesRead);
ret = TRUE;
}
else
ret = FALSE;
return ret;
}
BOOL CRYPT_ReadSerializedStoreFromBlob(const CRYPT_DATA_BLOB *blob,
HCERTSTORE store)
{
struct BlobReader reader = { blob, 0 };
return CRYPT_ReadSerializedStore(&reader, read_blob_wrapper, store);
}
static BOOL WINAPI CRYPT_SerializeCertNoHash(PCCERT_CONTEXT pCertContext,
DWORD dwFlags, BYTE *pbElement, DWORD *pcbElement)
{