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crypt32: Implement PKCS_ATTRIBUTES encoding/decoding.

This commit is contained in:
Juan Lang 2007-06-12 15:01:34 -07:00 committed by Alexandre Julliard
parent 74addd636e
commit e1f83a7abf
3 changed files with 249 additions and 2 deletions
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72
dlls/crypt32/decode.c
View File

@ -536,7 +536,7 @@ static BOOL CRYPT_AsnDecodeArray(const struct AsnArrayDescriptor *arrayDesc,
for (ptr = pbEncoded + 1 + lenBytes; ret &&
ptr - pbEncoded - 1 - lenBytes < dataLen; )
{
DWORD itemLenBytes, itemDataLen, size;
DWORD itemLenBytes, itemDataLen, size = 0;
itemLenBytes = GET_LEN_BYTES(ptr[1]);
/* Each item decoded may not tolerate extraneous bytes, so
@ -1829,16 +1829,81 @@ static BOOL WINAPI CRYPT_AsnDecodePKCSAttribute(DWORD dwCertEncodingType,
CRYPT_DecodeDERArray, sizeof(struct GenericArray), FALSE, TRUE,
offsetof(CRYPT_ATTRIBUTE, rgValue), 0 },
};
PCRYPT_ATTRIBUTE attr = (PCRYPT_ATTRIBUTE)pvStructInfo;
ret = CRYPT_AsnDecodeSequence(dwCertEncodingType, items,
sizeof(items) / sizeof(items[0]), pbEncoded, cbEncoded, dwFlags,
pDecodePara, pvStructInfo, pcbStructInfo, NULL);
pDecodePara, pvStructInfo, pcbStructInfo, attr ? attr->pszObjId :
NULL);
}
__EXCEPT_PAGE_FAULT
{
SetLastError(STATUS_ACCESS_VIOLATION);
}
__ENDTRY
TRACE("returning %d\n", ret);
return ret;
}
static BOOL WINAPI CRYPT_AsnDecodePKCSAttributesInternal(
DWORD dwCertEncodingType, LPCSTR lpszStructType, const BYTE *pbEncoded,
DWORD cbEncoded, DWORD dwFlags, PCRYPT_DECODE_PARA pDecodePara,
void *pvStructInfo, DWORD *pcbStructInfo)
{
struct AsnArrayDescriptor arrayDesc = { ASN_CONSTRUCTOR | ASN_SETOF,
CRYPT_AsnDecodePKCSAttribute, sizeof(CRYPT_ATTRIBUTE), TRUE,
offsetof(CRYPT_ATTRIBUTE, pszObjId) };
PCRYPT_ATTRIBUTES attrs = (PCRYPT_ATTRIBUTES)pvStructInfo;
BOOL ret;
ret = CRYPT_AsnDecodeArray(&arrayDesc, pbEncoded, cbEncoded, dwFlags,
pDecodePara, pvStructInfo, pcbStructInfo, attrs ? attrs->rgAttr :
NULL);
return ret;
}
static BOOL WINAPI CRYPT_AsnDecodePKCSAttributes(DWORD dwCertEncodingType,
LPCSTR lpszStructType, const BYTE *pbEncoded, DWORD cbEncoded, DWORD dwFlags,
PCRYPT_DECODE_PARA pDecodePara, void *pvStructInfo, DWORD *pcbStructInfo)
{
BOOL ret = FALSE;
TRACE("%p, %d, %08x, %p, %p, %d\n", pbEncoded, cbEncoded, dwFlags,
pDecodePara, pvStructInfo, *pcbStructInfo);
__TRY
{
DWORD bytesNeeded;
if ((ret = CRYPT_AsnDecodePKCSAttributesInternal(dwCertEncodingType,
lpszStructType, pbEncoded, cbEncoded,
dwFlags & ~CRYPT_DECODE_ALLOC_FLAG, NULL, NULL, &bytesNeeded)))
{
if (!pvStructInfo)
*pcbStructInfo = bytesNeeded;
else if ((ret = CRYPT_DecodeEnsureSpace(dwFlags, pDecodePara,
pvStructInfo, pcbStructInfo, bytesNeeded)))
{
PCRYPT_ATTRIBUTES attrs;
if (dwFlags & CRYPT_DECODE_ALLOC_FLAG)
pvStructInfo = *(BYTE **)pvStructInfo;
attrs = (PCRYPT_ATTRIBUTES)pvStructInfo;
attrs->rgAttr = (PCRYPT_ATTRIBUTE)((BYTE *)pvStructInfo +
sizeof(CRYPT_ATTRIBUTES));
ret = CRYPT_AsnDecodePKCSAttributesInternal(dwCertEncodingType,
lpszStructType, pbEncoded, cbEncoded,
dwFlags & ~CRYPT_DECODE_ALLOC_FLAG, NULL, pvStructInfo,
&bytesNeeded);
}
}
}
__EXCEPT_PAGE_FAULT
{
SetLastError(STATUS_ACCESS_VIOLATION);
}
__ENDTRY
TRACE("returning %d\n", ret);
return ret;
}
@ -3721,6 +3786,9 @@ BOOL WINAPI CryptDecodeObjectEx(DWORD dwCertEncodingType, LPCSTR lpszStructType,
case (WORD)X509_ENHANCED_KEY_USAGE:
decodeFunc = CRYPT_AsnDecodeEnhancedKeyUsage;
break;
case (WORD)PKCS_ATTRIBUTES:
decodeFunc = CRYPT_AsnDecodePKCSAttributes;
break;
case (WORD)X509_ISSUING_DIST_POINT:
decodeFunc = CRYPT_AsnDecodeIssuingDistPoint;
break;

60
dlls/crypt32/encode.c
View File

@ -1386,6 +1386,63 @@ static BOOL WINAPI CRYPT_AsnEncodePKCSAttribute(DWORD dwCertEncodingType,
return ret;
}
static BOOL WINAPI CRYPT_AsnEncodePKCSAttributes(DWORD dwCertEncodingType,
LPCSTR lpszStructType, const void *pvStructInfo, DWORD dwFlags,
PCRYPT_ENCODE_PARA pEncodePara, BYTE *pbEncoded, DWORD *pcbEncoded)
{
BOOL ret = FALSE;
CRYPT_SET_OF setOf = { 0, NULL };
__TRY
{
DWORD i;
const CRYPT_ATTRIBUTES *attributes =
(const CRYPT_ATTRIBUTES *)pvStructInfo;
ret = TRUE;
if (attributes->cAttr)
{
setOf.cValue = attributes->cAttr;
setOf.rgValue = CryptMemAlloc(attributes->cAttr *
sizeof(CRYPT_DER_BLOB));
if (!setOf.rgValue)
ret = FALSE;
else
memset(setOf.rgValue, 0, setOf.cValue * sizeof(CRYPT_DER_BLOB));
}
for (i = 0; ret && i < attributes->cAttr; i++)
{
ret = CRYPT_AsnEncodePKCSAttribute(dwCertEncodingType, NULL,
&attributes->rgAttr[i], 0, NULL, NULL, &setOf.rgValue[i].cbData);
if (ret)
{
setOf.rgValue[i].pbData =
CryptMemAlloc(setOf.rgValue[i].cbData);
if (!setOf.rgValue[i].pbData)
ret = FALSE;
else
{
ret = CRYPT_AsnEncodePKCSAttribute(dwCertEncodingType, NULL,
&attributes->rgAttr[i], 0, NULL, setOf.rgValue[i].pbData,
&setOf.rgValue[i].cbData);
}
}
}
if (ret)
ret = CRYPT_DEREncodeSet(X509_ASN_ENCODING, NULL, &setOf, dwFlags,
pEncodePara, pbEncoded, pcbEncoded);
for (i = 0; i < setOf.cValue; i++)
CryptMemFree(setOf.rgValue[i].pbData);
}
__EXCEPT_PAGE_FAULT
{
SetLastError(STATUS_ACCESS_VIOLATION);
}
__ENDTRY
CryptMemFree(setOf.rgValue);
return ret;
}
static BOOL WINAPI CRYPT_AsnEncodePKCSContentInfo(DWORD dwCertEncodingType,
LPCSTR lpszStructType, const void *pvStructInfo, DWORD dwFlags,
PCRYPT_ENCODE_PARA pEncodePara, BYTE *pbEncoded, DWORD *pcbEncoded)
@ -3138,6 +3195,9 @@ BOOL WINAPI CryptEncodeObjectEx(DWORD dwCertEncodingType, LPCSTR lpszStructType,
case (WORD)X509_ENHANCED_KEY_USAGE:
encodeFunc = CRYPT_AsnEncodeEnhancedKeyUsage;
break;
case (WORD)PKCS_ATTRIBUTES:
encodeFunc = CRYPT_AsnEncodePKCSAttributes;
break;
case (WORD)X509_ISSUING_DIST_POINT:
encodeFunc = CRYPT_AsnEncodeIssuingDistPoint;
break;

119
dlls/crypt32/tests/encode.c
View File

@ -4740,6 +4740,123 @@ static void test_decodePKCSAttribute(DWORD dwEncoding)
attr->rgValue[0].cbData), "Unexpected value\n");
}
}
static const BYTE emptyPKCSAttributes[] = { 0x31,0x00 };
static const BYTE singlePKCSAttributes[] = { 0x31,0x08,0x30,0x06,0x06,0x02,
0x2a,0x03,0x31,0x00 };
static const BYTE doublePKCSAttributes[] = { 0x31,0x13,0x30,0x06,0x06,0x02,
0x2a,0x03,0x31,0x00,0x30,0x09,0x06,0x02,0x2d,0x06,0x31,0x03,0x02,0x01,0x01 };
static void test_encodePKCSAttributes(DWORD dwEncoding)
{
CRYPT_ATTRIBUTES attributes = { 0 };
CRYPT_ATTRIBUTE attr[2] = { { 0 } };
CRYPT_ATTR_BLOB blob;
BOOL ret;
LPBYTE buf = NULL;
DWORD size = 0;
char oid1[] = "1.2.3", oid2[] = "1.5.6";
ret = CryptEncodeObjectEx(dwEncoding, PKCS_ATTRIBUTES, &attributes,
CRYPT_ENCODE_ALLOC_FLAG, NULL, (BYTE *)&buf, &size);
ok(ret, "CryptEncodeObjectEx failed: %x\n", GetLastError());
if (buf)
{
ok(size == sizeof(emptyPKCSAttributes), "Unexpected size %d\n", size);
ok(!memcmp(buf, emptyPKCSAttributes, size), "Unexpected value\n");
LocalFree(buf);
}
attributes.cAttr = 1;
attributes.rgAttr = attr;
SetLastError(0xdeadbeef);
ret = CryptEncodeObjectEx(dwEncoding, PKCS_ATTRIBUTES, &attributes,
CRYPT_ENCODE_ALLOC_FLAG, NULL, (BYTE *)&buf, &size);
ok(!ret && GetLastError() == E_INVALIDARG,
"Expected E_INVALIDARG, got %x\n", GetLastError());
attr[0].pszObjId = oid1;
ret = CryptEncodeObjectEx(dwEncoding, PKCS_ATTRIBUTES, &attributes,
CRYPT_ENCODE_ALLOC_FLAG, NULL, (BYTE *)&buf, &size);
if (buf)
{
ok(size == sizeof(singlePKCSAttributes), "Unexpected size %d\n", size);
ok(!memcmp(buf, singlePKCSAttributes, size), "Unexpected value\n");
LocalFree(buf);
}
attr[1].pszObjId = oid2;
attr[1].cValue = 1;
attr[1].rgValue = &blob;
blob.pbData = (BYTE *)ints[0].encoded;
blob.cbData = ints[0].encoded[1] + 2;
attributes.cAttr = 2;
ret = CryptEncodeObjectEx(dwEncoding, PKCS_ATTRIBUTES, &attributes,
CRYPT_ENCODE_ALLOC_FLAG, NULL, (BYTE *)&buf, &size);
ok(ret, "CryptEncodeObjectEx failed: %x\n", GetLastError());
if (buf)
{
ok(size == sizeof(doublePKCSAttributes), "Unexpected size %d\n", size);
ok(!memcmp(buf, doublePKCSAttributes, size), "Unexpected value\n");
LocalFree(buf);
}
}
static void test_decodePKCSAttributes(DWORD dwEncoding)
{
BOOL ret;
LPBYTE buf = NULL;
DWORD size = 0;
CRYPT_ATTRIBUTES *attributes;
ret = CryptDecodeObjectEx(dwEncoding, PKCS_ATTRIBUTES,
emptyPKCSAttributes, sizeof(emptyPKCSAttributes),
CRYPT_DECODE_ALLOC_FLAG, NULL, (BYTE *)&buf, &size);
ok(ret, "CryptDecodeObjectEx failed: %x\n", GetLastError());
if (buf)
{
attributes = (CRYPT_ATTRIBUTES *)buf;
ok(attributes->cAttr == 0, "Expected no attributes, got %d\n",
attributes->cAttr);
LocalFree(buf);
}
ret = CryptDecodeObjectEx(dwEncoding, PKCS_ATTRIBUTES,
singlePKCSAttributes, sizeof(singlePKCSAttributes),
CRYPT_DECODE_ALLOC_FLAG, NULL, (BYTE *)&buf, &size);
ok(ret, "CryptDecodeObjectEx failed: %x\n", GetLastError());
if (buf)
{
attributes = (CRYPT_ATTRIBUTES *)buf;
ok(attributes->cAttr == 1, "Expected 1 attribute, got %d\n",
attributes->cAttr);
ok(!strcmp(attributes->rgAttr[0].pszObjId, "1.2.3"),
"Expected 1.2.3, got %s\n", attributes->rgAttr[0].pszObjId);
ok(attributes->rgAttr[0].cValue == 0,
"Expected no attributes, got %d\n", attributes->rgAttr[0].cValue);
LocalFree(buf);
}
ret = CryptDecodeObjectEx(dwEncoding, PKCS_ATTRIBUTES,
doublePKCSAttributes, sizeof(doublePKCSAttributes),
CRYPT_DECODE_ALLOC_FLAG, NULL, (BYTE *)&buf, &size);
ok(ret, "CryptDecodeObjectEx failed: %x\n", GetLastError());
if (buf)
{
attributes = (CRYPT_ATTRIBUTES *)buf;
ok(attributes->cAttr == 2, "Expected 2 attributes, got %d\n",
attributes->cAttr);
ok(!strcmp(attributes->rgAttr[0].pszObjId, "1.2.3"),
"Expected 1.2.3, got %s\n", attributes->rgAttr[0].pszObjId);
ok(attributes->rgAttr[0].cValue == 0,
"Expected no attributes, got %d\n", attributes->rgAttr[0].cValue);
ok(!strcmp(attributes->rgAttr[1].pszObjId, "1.5.6"),
"Expected 1.5.6, got %s", attributes->rgAttr[1].pszObjId);
ok(attributes->rgAttr[1].cValue == 1,
"Expected 1 attribute, got %d\n", attributes->rgAttr[1].cValue);
ok(attributes->rgAttr[1].rgValue[0].cbData == ints[0].encoded[1] + 2,
"Unexpected size %d\n", attributes->rgAttr[1].rgValue[0].cbData);
ok(!memcmp(attributes->rgAttr[1].rgValue[0].pbData, ints[0].encoded,
attributes->rgAttr[1].rgValue[0].cbData), "Unexpected value\n");
LocalFree(buf);
}
}
/* Free *pInfo with HeapFree */
static void testExportPublicKey(HCRYPTPROV csp, PCERT_PUBLIC_KEY_INFO *pInfo)
{
@ -4951,6 +5068,8 @@ START_TEST(encode)
test_decodePKCSContentInfo(encodings[i]);
test_encodePKCSAttribute(encodings[i]);
test_decodePKCSAttribute(encodings[i]);
test_encodePKCSAttributes(encodings[i]);
test_decodePKCSAttributes(encodings[i]);
}
testPortPublicKeyInfo();
}