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wintrust: Implement WVTAsn1CatMemberInfoEncode.

This commit is contained in:
Juan Lang 2008-10-17 14:07:03 -07:00 committed by Alexandre Julliard
parent 52751981ad
commit d3d7dfa7ff
2 changed files with 162 additions and 5 deletions
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164
dlls/wintrust/asn.c
View File

@ -50,6 +50,7 @@ WINE_DEFAULT_DEBUG_CHANNEL(cryptasn);
#endif
#define ASN_BITSTRING (ASN_UNIVERSAL | ASN_PRIMITIVE | 0x03)
#define ASN_BMPSTRING (ASN_UNIVERSAL | ASN_PRIMITIVE | 0x1e)
static BOOL CRYPT_EncodeLen(DWORD len, BYTE *pbEncoded, DWORD *pcbEncoded)
{
@ -738,13 +739,172 @@ BOOL WINAPI WVTAsn1SpcIndirectDataContentEncode(DWORD dwCertEncodingType,
return ret;
}
static BOOL WINAPI CRYPT_AsnEncodeBMPString(DWORD dwCertEncodingType,
LPCSTR lpszStructType, const void *pvStructInfo, BYTE *pbEncoded,
DWORD *pcbEncoded)
{
BOOL ret = TRUE;
LPCWSTR str = (LPCWSTR)pvStructInfo;
DWORD bytesNeeded, lenBytes, strLen;
if (str)
strLen = lstrlenW(str);
else
strLen = 0;
CRYPT_EncodeLen(strLen * 2, NULL, &lenBytes);
bytesNeeded = 1 + lenBytes + strLen * 2;
if (!pbEncoded)
*pcbEncoded = bytesNeeded;
else if (*pcbEncoded < bytesNeeded)
{
*pcbEncoded = bytesNeeded;
SetLastError(ERROR_MORE_DATA);
ret = FALSE;
}
else
{
DWORD i;
*pcbEncoded = bytesNeeded;
*pbEncoded++ = ASN_BMPSTRING;
CRYPT_EncodeLen(strLen * 2, pbEncoded, &lenBytes);
pbEncoded += lenBytes;
for (i = 0; i < strLen; i++)
{
*pbEncoded++ = (str[i] & 0xff00) >> 8;
*pbEncoded++ = str[i] & 0x00ff;
}
}
return ret;
}
static BOOL WINAPI CRYPT_AsnEncodeInteger(DWORD dwCertEncodingType,
LPCSTR lpszStructType, const void *pvStructInfo, BYTE *pbEncoded,
DWORD *pcbEncoded)
{
BOOL ret;
__TRY
{
DWORD significantBytes, lenBytes, bytesNeeded;
BYTE padByte = 0;
BOOL pad = FALSE;
const CRYPT_INTEGER_BLOB *blob =
(const CRYPT_INTEGER_BLOB *)pvStructInfo;
significantBytes = blob->cbData;
if (significantBytes)
{
if (blob->pbData[significantBytes - 1] & 0x80)
{
/* negative, lop off leading (little-endian) 0xffs */
for (; significantBytes > 0 &&
blob->pbData[significantBytes - 1] == 0xff; significantBytes--)
;
if (blob->pbData[significantBytes - 1] < 0x80)
{
padByte = 0xff;
pad = TRUE;
}
}
else
{
/* positive, lop off leading (little-endian) zeroes */
for (; significantBytes > 0 &&
!blob->pbData[significantBytes - 1]; significantBytes--)
;
if (significantBytes == 0)
significantBytes = 1;
if (blob->pbData[significantBytes - 1] > 0x7f)
{
padByte = 0;
pad = TRUE;
}
}
}
if (pad)
CRYPT_EncodeLen(significantBytes + 1, NULL, &lenBytes);
else
CRYPT_EncodeLen(significantBytes, NULL, &lenBytes);
bytesNeeded = 1 + lenBytes + significantBytes;
if (pad)
bytesNeeded++;
if (!pbEncoded)
{
*pcbEncoded = bytesNeeded;
ret = TRUE;
}
else if (*pcbEncoded < bytesNeeded)
{
*pcbEncoded = bytesNeeded;
SetLastError(ERROR_MORE_DATA);
ret = FALSE;
}
else
{
*pcbEncoded = bytesNeeded;
*pbEncoded++ = ASN_INTEGER;
if (pad)
{
CRYPT_EncodeLen(significantBytes + 1, pbEncoded, &lenBytes);
pbEncoded += lenBytes;
*pbEncoded++ = padByte;
}
else
{
CRYPT_EncodeLen(significantBytes, pbEncoded, &lenBytes);
pbEncoded += lenBytes;
}
for (; significantBytes > 0; significantBytes--)
*(pbEncoded++) = blob->pbData[significantBytes - 1];
ret = TRUE;
}
}
__EXCEPT_PAGE_FAULT
{
SetLastError(STATUS_ACCESS_VIOLATION);
ret = FALSE;
}
__ENDTRY
return ret;
}
BOOL WINAPI CRYPT_AsnEncodeInt(DWORD dwCertEncodingType,
LPCSTR lpszStructType, const void *pvStructInfo, BYTE *pbEncoded,
DWORD *pcbEncoded)
{
CRYPT_INTEGER_BLOB blob = { sizeof(INT), (BYTE *)pvStructInfo };
return CRYPT_AsnEncodeInteger(dwCertEncodingType, X509_MULTI_BYTE_INTEGER,
&blob, pbEncoded, pcbEncoded);
}
BOOL WINAPI WVTAsn1CatMemberInfoEncode(DWORD dwCertEncodingType,
LPCSTR lpszStructType, const void *pvStructInfo, BYTE *pbEncoded,
DWORD *pcbEncoded)
{
FIXME("(0x%08x, %s, %p, %p, %p): stub\n", dwCertEncodingType,
BOOL ret = FALSE;
TRACE("(0x%08x, %s, %p, %p, %p)\n", dwCertEncodingType,
debugstr_a(lpszStructType), pvStructInfo, pbEncoded, pcbEncoded);
return FALSE;
__TRY
{
const CAT_MEMBERINFO *info = (const CAT_MEMBERINFO *)pvStructInfo;
struct AsnEncodeSequenceItem items[] = {
{ info->pwszSubjGuid, CRYPT_AsnEncodeBMPString, 0 },
{ &info->dwCertVersion, CRYPT_AsnEncodeInt, 0 },
};
ret = CRYPT_AsnEncodeSequence(X509_ASN_ENCODING,
items, sizeof(items) / sizeof(items[0]), pbEncoded, pcbEncoded);
}
__EXCEPT_PAGE_FAULT
{
SetLastError(STATUS_ACCESS_VIOLATION);
}
__ENDTRY
return ret;
}
/* Gets the number of length bytes from the given (leading) length byte */

3
dlls/wintrust/tests/asn.c
View File

@ -497,7 +497,6 @@ static void test_encodeCatMemberInfo(void)
ret = pCryptEncodeObjectEx(X509_ASN_ENCODING, CAT_MEMBERINFO_STRUCT,
&info, CRYPT_ENCODE_ALLOC_FLAG, NULL, &buf, &size);
todo_wine
ok(ret, "CryptEncodeObjectEx failed: %08x\n", GetLastError());
if (ret)
{
@ -509,7 +508,6 @@ static void test_encodeCatMemberInfo(void)
info.pwszSubjGuid = foo;
ret = pCryptEncodeObjectEx(X509_ASN_ENCODING, CAT_MEMBERINFO_STRUCT,
(LPBYTE)&info, CRYPT_ENCODE_ALLOC_FLAG, NULL, &buf, &size);
todo_wine
ok(ret, "CryptEncodeObjectEx failed: %08x\n", GetLastError());
if (ret)
{
@ -522,7 +520,6 @@ static void test_encodeCatMemberInfo(void)
info.pwszSubjGuid = guidStr;
ret = pCryptEncodeObjectEx(X509_ASN_ENCODING, CAT_MEMBERINFO_STRUCT,
(LPBYTE)&info, CRYPT_ENCODE_ALLOC_FLAG, NULL, &buf, &size);
todo_wine
ok(ret, "CryptEncodeObjectEx failed: %08x\n", GetLastError());
if (ret)
{