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crypt32: A decoded message's parameters are dependent on its type.

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This commit is contained in:
Juan Lang 2007-07-27 10:55:15 -07:00 committed by Alexandre Julliard
parent b893575cb9
commit fd1e88ae61
1 changed files with 52 additions and 9 deletions
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61
dlls/crypt32/msg.c
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@ -1239,7 +1239,9 @@ typedef struct _CDecodeMsg
CryptMsgBase base;
DWORD type;
HCRYPTPROV crypt_prov;
HCRYPTHASH hash;
union {
HCRYPTHASH hash;
} u;
CRYPT_DATA_BLOB msg_data;
PCONTEXT_PROPERTY_LIST properties;
} CDecodeMsg;
@ -1250,7 +1252,12 @@ static void CDecodeMsg_Close(HCRYPTMSG hCryptMsg)
if (msg->base.open_flags & CMSG_CRYPT_RELEASE_CONTEXT_FLAG)
CryptReleaseContext(msg->crypt_prov, 0);
CryptDestroyHash(msg->hash);
switch (msg->type)
{
case CMSG_HASHED:
CryptDestroyHash(msg->u.hash);
break;
}
CryptMemFree(msg->msg_data.pbData);
ContextPropertyList_Free(msg->properties);
}
@ -1479,10 +1486,9 @@ static BOOL CDecodeMsg_Update(HCRYPTMSG hCryptMsg, const BYTE *pbData,
return ret;
}
static BOOL CDecodeMsg_GetParam(HCRYPTMSG hCryptMsg, DWORD dwParamType,
static BOOL CDecodeHashMsg_GetParam(CDecodeMsg *msg, DWORD dwParamType,
DWORD dwIndex, void *pvData, DWORD *pcbData)
{
CDecodeMsg *msg = (CDecodeMsg *)hCryptMsg;
BOOL ret = FALSE;
switch (dwParamType)
@ -1508,7 +1514,7 @@ static BOOL CDecodeMsg_GetParam(HCRYPTMSG hCryptMsg, DWORD dwParamType,
break;
}
case CMSG_COMPUTED_HASH_PARAM:
if (!msg->hash)
if (!msg->u.hash)
{
CRYPT_ALGORITHM_IDENTIFIER *hashAlgoID = NULL;
DWORD size = 0;
@ -1520,7 +1526,7 @@ static BOOL CDecodeMsg_GetParam(HCRYPTMSG hCryptMsg, DWORD dwParamType,
hashAlgoID, &size);
if (ret)
algID = CertOIDToAlgId(hashAlgoID->pszObjId);
ret = CryptCreateHash(msg->crypt_prov, algID, 0, 0, &msg->hash);
ret = CryptCreateHash(msg->crypt_prov, algID, 0, 0, &msg->u.hash);
if (ret)
{
CRYPT_DATA_BLOB content;
@ -1528,7 +1534,7 @@ static BOOL CDecodeMsg_GetParam(HCRYPTMSG hCryptMsg, DWORD dwParamType,
ret = ContextPropertyList_FindProperty(msg->properties,
CMSG_CONTENT_PARAM, &content);
if (ret)
ret = CryptHashData(msg->hash, content.pbData,
ret = CryptHashData(msg->u.hash, content.pbData,
content.cbData, 0);
}
CryptMemFree(hashAlgoID);
@ -1536,7 +1542,8 @@ static BOOL CDecodeMsg_GetParam(HCRYPTMSG hCryptMsg, DWORD dwParamType,
else
ret = TRUE;
if (ret)
ret = CryptGetHashParam(msg->hash, HP_HASHVAL, pvData, pcbData, 0);
ret = CryptGetHashParam(msg->u.hash, HP_HASHVAL, pvData, pcbData,
0);
break;
default:
{
@ -1553,6 +1560,42 @@ static BOOL CDecodeMsg_GetParam(HCRYPTMSG hCryptMsg, DWORD dwParamType,
return ret;
}
static BOOL CDecodeMsg_GetParam(HCRYPTMSG hCryptMsg, DWORD dwParamType,
DWORD dwIndex, void *pvData, DWORD *pcbData)
{
CDecodeMsg *msg = (CDecodeMsg *)hCryptMsg;
BOOL ret = FALSE;
switch (msg->type)
{
case CMSG_HASHED:
ret = CDecodeHashMsg_GetParam(msg, dwParamType, dwIndex, pvData,
pcbData);
break;
default:
switch (dwParamType)
{
case CMSG_TYPE_PARAM:
ret = CRYPT_CopyParam(pvData, pcbData, (const BYTE *)&msg->type,
sizeof(msg->type));
break;
default:
{
CRYPT_DATA_BLOB blob;
ret = ContextPropertyList_FindProperty(msg->properties, dwParamType,
&blob);
if (ret)
ret = CRYPT_CopyParam(pvData, pcbData, blob.pbData,
blob.cbData);
else
SetLastError(CRYPT_E_INVALID_MSG_TYPE);
}
}
}
return ret;
}
HCRYPTMSG WINAPI CryptMsgOpenToDecode(DWORD dwMsgEncodingType, DWORD dwFlags,
DWORD dwMsgType, HCRYPTPROV hCryptProv, PCERT_INFO pRecipientInfo,
PCMSG_STREAM_INFO pStreamInfo)
@ -1580,7 +1623,7 @@ HCRYPTMSG WINAPI CryptMsgOpenToDecode(DWORD dwMsgEncodingType, DWORD dwFlags,
msg->crypt_prov = CRYPT_GetDefaultProvider();
msg->base.open_flags &= ~CMSG_CRYPT_RELEASE_CONTEXT_FLAG;
}
msg->hash = 0;
memset(&msg->u, 0, sizeof(msg->u));
msg->msg_data.cbData = 0;
msg->msg_data.pbData = NULL;
msg->properties = ContextPropertyList_Create();