178 lines
5.1 KiB
C
178 lines
5.1 KiB
C
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/*
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* Copyright 2008 Juan Lang
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
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*
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*/
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#include <assert.h>
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#include <stdarg.h>
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#define NONAMELESSUNION
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#include "windef.h"
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#include "winbase.h"
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#include "wincrypt.h"
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#include "wine/debug.h"
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#include "crypt32_private.h"
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WINE_DEFAULT_DEBUG_CHANNEL(crypt);
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PCCTL_CONTEXT WINAPI CertCreateCTLContext(DWORD dwMsgAndCertEncodingType,
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const BYTE *pbCtlEncoded, DWORD cbCtlEncoded)
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{
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PCTL_CONTEXT ctl = NULL;
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HCRYPTMSG msg;
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BOOL ret;
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BYTE *content = NULL;
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DWORD contentSize = 0, size;
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PCTL_INFO ctlInfo = NULL;
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TRACE("(%08x, %p, %d)\n", dwMsgAndCertEncodingType, pbCtlEncoded,
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cbCtlEncoded);
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if (GET_CERT_ENCODING_TYPE(dwMsgAndCertEncodingType) != X509_ASN_ENCODING)
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{
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SetLastError(E_INVALIDARG);
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return NULL;
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}
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if (!pbCtlEncoded || !cbCtlEncoded)
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{
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SetLastError(ERROR_INVALID_DATA);
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return NULL;
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}
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msg = CryptMsgOpenToDecode(PKCS_7_ASN_ENCODING | X509_ASN_ENCODING, 0, 0,
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0, NULL, NULL);
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if (!msg)
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return NULL;
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ret = CryptMsgUpdate(msg, pbCtlEncoded, cbCtlEncoded, TRUE);
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if (!ret)
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{
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SetLastError(ERROR_INVALID_DATA);
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goto end;
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}
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/* Check that it's really a CTL */
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ret = CryptMsgGetParam(msg, CMSG_INNER_CONTENT_TYPE_PARAM, 0, NULL, &size);
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if (ret)
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{
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char *innerContent = CryptMemAlloc(size);
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if (innerContent)
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{
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ret = CryptMsgGetParam(msg, CMSG_INNER_CONTENT_TYPE_PARAM, 0,
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innerContent, &size);
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if (ret)
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{
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if (strcmp(innerContent, szOID_CTL))
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{
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SetLastError(ERROR_INVALID_DATA);
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ret = FALSE;
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}
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}
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CryptMemFree(innerContent);
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}
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else
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{
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SetLastError(ERROR_OUTOFMEMORY);
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ret = FALSE;
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}
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}
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if (!ret)
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goto end;
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ret = CryptMsgGetParam(msg, CMSG_CONTENT_PARAM, 0, NULL, &contentSize);
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if (!ret)
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goto end;
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content = CryptMemAlloc(contentSize);
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if (content)
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{
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ret = CryptMsgGetParam(msg, CMSG_CONTENT_PARAM, 0, content,
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&contentSize);
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if (ret)
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{
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ret = CryptDecodeObjectEx(dwMsgAndCertEncodingType, PKCS_CTL,
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content, contentSize, CRYPT_DECODE_ALLOC_FLAG, NULL,
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(BYTE *)&ctlInfo, &size);
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if (ret)
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{
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ctl = (PCTL_CONTEXT)Context_CreateDataContext(
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sizeof(CTL_CONTEXT));
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if (ctl)
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{
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BYTE *data = CryptMemAlloc(cbCtlEncoded);
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if (data)
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{
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memcpy(data, pbCtlEncoded, cbCtlEncoded);
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ctl->dwMsgAndCertEncodingType =
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X509_ASN_ENCODING | PKCS_7_ASN_ENCODING;
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ctl->pbCtlEncoded = data;
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ctl->cbCtlEncoded = cbCtlEncoded;
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ctl->pCtlInfo = ctlInfo;
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ctl->hCertStore = NULL;
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ctl->hCryptMsg = msg;
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ctl->pbCtlContext = content;
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ctl->cbCtlContext = contentSize;
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}
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else
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{
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SetLastError(ERROR_OUTOFMEMORY);
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ret = FALSE;
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}
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}
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else
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{
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SetLastError(ERROR_OUTOFMEMORY);
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ret = FALSE;
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}
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}
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}
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}
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else
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{
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SetLastError(ERROR_OUTOFMEMORY);
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ret = FALSE;
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}
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end:
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if (!ret)
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{
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CryptMemFree(ctl);
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ctl = NULL;
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LocalFree(ctlInfo);
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CryptMemFree(content);
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CryptMsgClose(msg);
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}
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return (PCCTL_CONTEXT)ctl;
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}
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static void CTLDataContext_Free(void *context)
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{
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PCTL_CONTEXT ctlContext = (PCTL_CONTEXT)context;
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CryptMsgClose(ctlContext->hCryptMsg);
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CryptMemFree(ctlContext->pbCtlEncoded);
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CryptMemFree(ctlContext->pbCtlContext);
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LocalFree(ctlContext->pCtlInfo);
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}
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BOOL WINAPI CertFreeCTLContext(PCCTL_CONTEXT pCTLContext)
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{
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TRACE("(%p)\n", pCTLContext);
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if (pCTLContext)
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Context_Release((void *)pCTLContext, sizeof(CTL_CONTEXT),
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CTLDataContext_Free);
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return TRUE;
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}
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