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crypt32: Introduce a OID decoding function that ignores the tag and use it where the caller already checks the tag.

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This commit is contained in:
Juan Lang 2007-08-02 09:48:53 -07:00 committed by Alexandre Julliard
parent 676c6e5a36
commit 005b50e913
1 changed files with 94 additions and 77 deletions
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39
dlls/crypt32/decode.c
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@ -1107,19 +1107,16 @@ static BOOL WINAPI CRYPT_AsnDecodeCRL(DWORD dwCertEncodingType,
return ret;
}
static BOOL WINAPI CRYPT_AsnDecodeOidInternal(DWORD dwCertEncodingType,
static BOOL WINAPI CRYPT_AsnDecodeOidIgnoreTag(DWORD dwCertEncodingType,
LPCSTR lpszStructType, const BYTE *pbEncoded, DWORD cbEncoded, DWORD dwFlags,
PCRYPT_DECODE_PARA pDecodePara, void *pvStructInfo, DWORD *pcbStructInfo)
{
BOOL ret = TRUE;
DWORD dataLen;
TRACE("%p, %d, %08x, %p, %p, %d\n", pbEncoded, cbEncoded, dwFlags,
pDecodePara, pvStructInfo, *pcbStructInfo);
if (pbEncoded[0] == ASN_OBJECTIDENTIFIER)
{
DWORD dataLen;
if ((ret = CRYPT_GetLen(pbEncoded, cbEncoded, &dataLen)))
{
BYTE lenBytes = GET_LEN_BYTES(pbEncoded[1]);
@ -1210,6 +1207,26 @@ static BOOL WINAPI CRYPT_AsnDecodeOidInternal(DWORD dwCertEncodingType,
*pcbStructInfo = bytesNeeded;
}
}
return ret;
}
static BOOL WINAPI CRYPT_AsnDecodeOidInternal(DWORD dwCertEncodingType,
LPCSTR lpszStructType, const BYTE *pbEncoded, DWORD cbEncoded, DWORD dwFlags,
PCRYPT_DECODE_PARA pDecodePara, void *pvStructInfo, DWORD *pcbStructInfo)
{
BOOL ret;
TRACE("%p, %d, %08x, %p, %p, %d\n", pbEncoded, cbEncoded, dwFlags,
pDecodePara, pvStructInfo, *pcbStructInfo);
if (pbEncoded[0] == ASN_OBJECTIDENTIFIER)
ret = CRYPT_AsnDecodeOidIgnoreTag(dwCertEncodingType, lpszStructType,
pbEncoded, cbEncoded, dwFlags, pDecodePara, pvStructInfo,
pcbStructInfo);
else
{
SetLastError(CRYPT_E_ASN1_BADTAG);
ret = FALSE;
}
return ret;
}
@ -1223,7 +1240,7 @@ static BOOL WINAPI CRYPT_AsnDecodeExtension(DWORD dwCertEncodingType,
{
struct AsnDecodeSequenceItem items[] = {
{ ASN_OBJECTIDENTIFIER, offsetof(CERT_EXTENSION, pszObjId),
CRYPT_AsnDecodeOidInternal, sizeof(LPSTR), FALSE, TRUE,
CRYPT_AsnDecodeOidIgnoreTag, sizeof(LPSTR), FALSE, TRUE,
offsetof(CERT_EXTENSION, pszObjId), 0 },
{ ASN_BOOL, offsetof(CERT_EXTENSION, fCritical), CRYPT_AsnDecodeBool,
sizeof(BOOL), TRUE, FALSE, 0, 0 },
@ -1671,7 +1688,7 @@ static BOOL WINAPI CRYPT_AsnDecodeRdnAttr(DWORD dwCertEncodingType,
BOOL ret;
struct AsnDecodeSequenceItem items[] = {
{ ASN_OBJECTIDENTIFIER, offsetof(CERT_RDN_ATTR, pszObjId),
CRYPT_AsnDecodeOidInternal, sizeof(LPSTR), FALSE, TRUE,
CRYPT_AsnDecodeOidIgnoreTag, sizeof(LPSTR), FALSE, TRUE,
offsetof(CERT_RDN_ATTR, pszObjId), 0 },
{ 0, offsetof(CERT_RDN_ATTR, dwValueType),
CRYPT_AsnDecodeNameValueInternal, sizeof(CERT_NAME_VALUE),
@ -1743,7 +1760,7 @@ static BOOL WINAPI CRYPT_AsnDecodeUnicodeRdnAttr(DWORD dwCertEncodingType,
BOOL ret;
struct AsnDecodeSequenceItem items[] = {
{ ASN_OBJECTIDENTIFIER, offsetof(CERT_RDN_ATTR, pszObjId),
CRYPT_AsnDecodeOidInternal, sizeof(LPSTR), FALSE, TRUE,
CRYPT_AsnDecodeOidIgnoreTag, sizeof(LPSTR), FALSE, TRUE,
offsetof(CERT_RDN_ATTR, pszObjId), 0 },
{ 0, offsetof(CERT_RDN_ATTR, dwValueType),
CRYPT_AsnDecodeUnicodeNameValueInternal, sizeof(CERT_NAME_VALUE),
@ -1872,7 +1889,7 @@ static BOOL WINAPI CRYPT_AsnDecodePKCSAttribute(DWORD dwCertEncodingType,
{
struct AsnDecodeSequenceItem items[] = {
{ ASN_OBJECTIDENTIFIER, offsetof(CRYPT_ATTRIBUTE, pszObjId),
CRYPT_AsnDecodeOidInternal, sizeof(LPSTR), FALSE, TRUE,
CRYPT_AsnDecodeOidIgnoreTag, sizeof(LPSTR), FALSE, TRUE,
offsetof(CRYPT_ATTRIBUTE, pszObjId), 0 },
{ ASN_CONSTRUCTOR | ASN_SETOF, offsetof(CRYPT_ATTRIBUTE, cValue),
CRYPT_DecodeDERArray, sizeof(struct GenericArray), FALSE, TRUE,
@ -1968,7 +1985,7 @@ static BOOL WINAPI CRYPT_AsnDecodeAlgorithmId(DWORD dwCertEncodingType,
BOOL ret = TRUE;
struct AsnDecodeSequenceItem items[] = {
{ ASN_OBJECTIDENTIFIER, offsetof(CRYPT_ALGORITHM_IDENTIFIER, pszObjId),
CRYPT_AsnDecodeOidInternal, sizeof(LPSTR), FALSE, TRUE,
CRYPT_AsnDecodeOidIgnoreTag, sizeof(LPSTR), FALSE, TRUE,
offsetof(CRYPT_ALGORITHM_IDENTIFIER, pszObjId), 0 },
{ 0, offsetof(CRYPT_ALGORITHM_IDENTIFIER, Parameters),
CRYPT_AsnDecodeCopyBytes, sizeof(CRYPT_OBJID_BLOB), TRUE, TRUE,
@ -2325,7 +2342,7 @@ static BOOL WINAPI CRYPT_AsnDecodePKCSContentInfoInternal(
CRYPT_CONTENT_INFO *info = (CRYPT_CONTENT_INFO *)pvStructInfo;
struct AsnDecodeSequenceItem items[] = {
{ ASN_OBJECTIDENTIFIER, offsetof(CRYPT_CONTENT_INFO, pszObjId),
CRYPT_AsnDecodeOidInternal, sizeof(LPSTR), FALSE, TRUE,
CRYPT_AsnDecodeOidIgnoreTag, sizeof(LPSTR), FALSE, TRUE,
offsetof(CRYPT_CONTENT_INFO, pszObjId), 0 },
{ ASN_CONTEXT | ASN_CONSTRUCTOR | 0,
offsetof(CRYPT_CONTENT_INFO, Content), CRYPT_AsnDecodePKCSContent,