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/*
* Copyright 2008 Juan Lang
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
*
*/
#include <assert.h>
#include <stdarg.h>
#include "windef.h"
#include "winbase.h"
#include "wincrypt.h"
#include "wine/debug.h"
#include "crypt32_private.h"
WINE_DEFAULT_DEBUG_CHANNEL(crypt);
static void CTL_free(context_t *context)
{
ctl_t *ctl = (ctl_t*)context;
CryptMsgClose(ctl->ctx.hCryptMsg);
CryptMemFree(ctl->ctx.pbCtlEncoded);
CryptMemFree(ctl->ctx.pbCtlContext);
LocalFree(ctl->ctx.pCtlInfo);
}
static context_t *CTL_clone(context_t *context, WINECRYPT_CERTSTORE *store, BOOL use_link)
{
ctl_t *ctl;
if(!use_link) {
FIXME("Only links supported\n");
return NULL;
}
ctl = (ctl_t*)Context_CreateLinkContext(sizeof(CTL_CONTEXT), context, store);
if(!ctl)
return NULL;
ctl->ctx.hCertStore = store;
return &ctl->base;
}
static const context_vtbl_t ctl_vtbl = {
CTL_free,
CTL_clone
};
BOOL WINAPI CertAddCTLContextToStore(HCERTSTORE hCertStore,
PCCTL_CONTEXT pCtlContext, DWORD dwAddDisposition,
PCCTL_CONTEXT* ppStoreContext)
{
WINECRYPT_CERTSTORE *store = hCertStore;
BOOL ret = TRUE;
PCCTL_CONTEXT toAdd = NULL, existing = NULL;
TRACE("(%p, %p, %08x, %p)\n", hCertStore, pCtlContext, dwAddDisposition,
ppStoreContext);
if (dwAddDisposition != CERT_STORE_ADD_ALWAYS)
{
existing = CertFindCTLInStore(hCertStore, 0, 0, CTL_FIND_EXISTING,
pCtlContext, NULL);
}
switch (dwAddDisposition)
{
case CERT_STORE_ADD_ALWAYS:
toAdd = CertDuplicateCTLContext(pCtlContext);
break;
case CERT_STORE_ADD_NEW:
if (existing)
{
TRACE("found matching CTL, not adding\n");
SetLastError(CRYPT_E_EXISTS);
ret = FALSE;
}
else
toAdd = CertDuplicateCTLContext(pCtlContext);
break;
case CERT_STORE_ADD_NEWER:
if (existing)
{
LONG newer = CompareFileTime(&existing->pCtlInfo->ThisUpdate,
&pCtlContext->pCtlInfo->ThisUpdate);
if (newer < 0)
toAdd = CertDuplicateCTLContext(pCtlContext);
else
{
TRACE("existing CTL is newer, not adding\n");
SetLastError(CRYPT_E_EXISTS);
ret = FALSE;
}
}
else
toAdd = CertDuplicateCTLContext(pCtlContext);
break;
case CERT_STORE_ADD_NEWER_INHERIT_PROPERTIES:
if (existing)
{
LONG newer = CompareFileTime(&existing->pCtlInfo->ThisUpdate,
&pCtlContext->pCtlInfo->ThisUpdate);
if (newer < 0)
{
toAdd = CertDuplicateCTLContext(pCtlContext);
Context_CopyProperties(existing, pCtlContext);
}
else
{
TRACE("existing CTL is newer, not adding\n");
SetLastError(CRYPT_E_EXISTS);
ret = FALSE;
}
}
else
toAdd = CertDuplicateCTLContext(pCtlContext);
break;
case CERT_STORE_ADD_REPLACE_EXISTING:
toAdd = CertDuplicateCTLContext(pCtlContext);
break;
case CERT_STORE_ADD_REPLACE_EXISTING_INHERIT_PROPERTIES:
toAdd = CertDuplicateCTLContext(pCtlContext);
if (existing)
Context_CopyProperties(toAdd, existing);
break;
case CERT_STORE_ADD_USE_EXISTING:
if (existing)
{
Context_CopyProperties(existing, pCtlContext);
if (ppStoreContext)
*ppStoreContext = CertDuplicateCTLContext(existing);
}
else
toAdd = CertDuplicateCTLContext(pCtlContext);
break;
default:
FIXME("Unimplemented add disposition %d\n", dwAddDisposition);
ret = FALSE;
}
if (toAdd)
{
if (store) {
context_t *ret_ctx;
ret = store->vtbl->ctls.addContext(store, context_from_ptr(toAdd),
existing ? context_from_ptr(existing) : NULL, ppStoreContext ? &ret_ctx : NULL, TRUE);
if(ret && ppStoreContext)
*ppStoreContext = context_ptr(ret_ctx);
}else if (ppStoreContext) {
*ppStoreContext = CertDuplicateCTLContext(toAdd);
}
CertFreeCTLContext(toAdd);
}
CertFreeCTLContext(existing);
TRACE("returning %d\n", ret);
return ret;
}
BOOL WINAPI CertAddEncodedCTLToStore(HCERTSTORE hCertStore,
DWORD dwMsgAndCertEncodingType, const BYTE *pbCtlEncoded, DWORD cbCtlEncoded,
DWORD dwAddDisposition, PCCTL_CONTEXT *ppCtlContext)
{
PCCTL_CONTEXT ctl = CertCreateCTLContext(dwMsgAndCertEncodingType,
pbCtlEncoded, cbCtlEncoded);
BOOL ret;
TRACE("(%p, %08x, %p, %d, %08x, %p)\n", hCertStore,
dwMsgAndCertEncodingType, pbCtlEncoded, cbCtlEncoded, dwAddDisposition,
ppCtlContext);
if (ctl)
{
ret = CertAddCTLContextToStore(hCertStore, ctl, dwAddDisposition,
ppCtlContext);
CertFreeCTLContext(ctl);
}
else
ret = FALSE;
return ret;
}
PCCTL_CONTEXT WINAPI CertEnumCTLsInStore(HCERTSTORE hCertStore, PCCTL_CONTEXT pPrev)
{
ctl_t *prev = pPrev ? ctl_from_ptr(pPrev) : NULL, *ret;
WINECRYPT_CERTSTORE *hcs = hCertStore;
TRACE("(%p, %p)\n", hCertStore, pPrev);
if (!hCertStore)
ret = NULL;
else if (hcs->dwMagic != WINE_CRYPTCERTSTORE_MAGIC)
ret = NULL;
else
ret = (ctl_t*)hcs->vtbl->ctls.enumContext(hcs, prev ? &prev->base : NULL);
return ret ? &ret->ctx : NULL;
}
typedef BOOL (*CtlCompareFunc)(PCCTL_CONTEXT pCtlContext, DWORD dwType,
DWORD dwFlags, const void *pvPara);
static BOOL compare_ctl_any(PCCTL_CONTEXT pCtlContext, DWORD dwType,
DWORD dwFlags, const void *pvPara)
{
return TRUE;
}
static BOOL compare_ctl_by_md5_hash(PCCTL_CONTEXT pCtlContext, DWORD dwType,
DWORD dwFlags, const void *pvPara)
{
BOOL ret;
BYTE hash[16];
DWORD size = sizeof(hash);
ret = CertGetCTLContextProperty(pCtlContext, CERT_MD5_HASH_PROP_ID, hash,
&size);
if (ret)
{
const CRYPT_HASH_BLOB *pHash = pvPara;
if (size == pHash->cbData)
ret = !memcmp(pHash->pbData, hash, size);
else
ret = FALSE;
}
return ret;
}
static BOOL compare_ctl_by_sha1_hash(PCCTL_CONTEXT pCtlContext, DWORD dwType,
DWORD dwFlags, const void *pvPara)
{
BOOL ret;
BYTE hash[20];
DWORD size = sizeof(hash);
ret = CertGetCTLContextProperty(pCtlContext, CERT_SHA1_HASH_PROP_ID, hash,
&size);
if (ret)
{
const CRYPT_HASH_BLOB *pHash = pvPara;
if (size == pHash->cbData)
ret = !memcmp(pHash->pbData, hash, size);
else
ret = FALSE;
}
return ret;
}
static BOOL compare_ctl_existing(PCCTL_CONTEXT pCtlContext, DWORD dwType,
DWORD dwFlags, const void *pvPara)
{
BOOL ret;
if (pvPara)
{
PCCTL_CONTEXT ctl = pvPara;
if (pCtlContext->cbCtlContext == ctl->cbCtlContext)
{
if (ctl->cbCtlContext)
ret = !memcmp(pCtlContext->pbCtlContext, ctl->pbCtlContext,
ctl->cbCtlContext);
else
ret = TRUE;
}
else
ret = FALSE;
}
else
ret = FALSE;
return ret;
}
PCCTL_CONTEXT WINAPI CertFindCTLInStore(HCERTSTORE hCertStore,
DWORD dwCertEncodingType, DWORD dwFindFlags, DWORD dwFindType,
const void *pvFindPara, PCCTL_CONTEXT pPrevCtlContext)
{
PCCTL_CONTEXT ret;
CtlCompareFunc compare;
TRACE("(%p, %d, %d, %d, %p, %p)\n", hCertStore, dwCertEncodingType,
dwFindFlags, dwFindType, pvFindPara, pPrevCtlContext);
switch (dwFindType)
{
case CTL_FIND_ANY:
compare = compare_ctl_any;
break;
case CTL_FIND_SHA1_HASH:
compare = compare_ctl_by_sha1_hash;
break;
case CTL_FIND_MD5_HASH:
compare = compare_ctl_by_md5_hash;
break;
case CTL_FIND_EXISTING:
compare = compare_ctl_existing;
break;
default:
FIXME("find type %08x unimplemented\n", dwFindType);
compare = NULL;
}
if (compare)
{
BOOL matches = FALSE;
ret = pPrevCtlContext;
do {
ret = CertEnumCTLsInStore(hCertStore, ret);
if (ret)
matches = compare(ret, dwFindType, dwFindFlags, pvFindPara);
} while (ret != NULL && !matches);
if (!ret)
SetLastError(CRYPT_E_NOT_FOUND);
}
else
{
SetLastError(CRYPT_E_NOT_FOUND);
ret = NULL;
}
return ret;
}
BOOL WINAPI CertDeleteCTLFromStore(PCCTL_CONTEXT pCtlContext)
{
WINECRYPT_CERTSTORE *hcs;
ctl_t *ctl = ctl_from_ptr(pCtlContext);
BOOL ret;
TRACE("(%p)\n", pCtlContext);
if (!pCtlContext)
return TRUE;
hcs = pCtlContext->hCertStore;
if (hcs->dwMagic != WINE_CRYPTCERTSTORE_MAGIC)
return FALSE;
ret = hcs->vtbl->ctls.delete(hcs, &ctl->base);
if (ret)
ret = CertFreeCTLContext(pCtlContext);
return ret;
}
PCCTL_CONTEXT WINAPI CertCreateCTLContext(DWORD dwMsgAndCertEncodingType,
const BYTE *pbCtlEncoded, DWORD cbCtlEncoded)
{
ctl_t *ctl = NULL;
HCRYPTMSG msg;
BOOL ret;
BYTE *content = NULL;
DWORD contentSize = 0, size;
PCTL_INFO ctlInfo = NULL;
TRACE("(%08x, %p, %d)\n", dwMsgAndCertEncodingType, pbCtlEncoded,
cbCtlEncoded);
if (GET_CERT_ENCODING_TYPE(dwMsgAndCertEncodingType) != X509_ASN_ENCODING)
{
SetLastError(E_INVALIDARG);
return NULL;
}
if (!pbCtlEncoded || !cbCtlEncoded)
{
SetLastError(ERROR_INVALID_DATA);
return NULL;
}
msg = CryptMsgOpenToDecode(PKCS_7_ASN_ENCODING | X509_ASN_ENCODING, 0, 0,
0, NULL, NULL);
if (!msg)
return NULL;
ret = CryptMsgUpdate(msg, pbCtlEncoded, cbCtlEncoded, TRUE);
if (!ret)
{
SetLastError(ERROR_INVALID_DATA);
goto end;
}
/* Check that it's really a CTL */
ret = CryptMsgGetParam(msg, CMSG_INNER_CONTENT_TYPE_PARAM, 0, NULL, &size);
if (ret)
{
char *innerContent = CryptMemAlloc(size);
if (innerContent)
{
ret = CryptMsgGetParam(msg, CMSG_INNER_CONTENT_TYPE_PARAM, 0,
innerContent, &size);
if (ret)
{
if (strcmp(innerContent, szOID_CTL))
{
SetLastError(ERROR_INVALID_DATA);
ret = FALSE;
}
}
CryptMemFree(innerContent);
}
else
{
SetLastError(ERROR_OUTOFMEMORY);
ret = FALSE;
}
}
if (!ret)
goto end;
ret = CryptMsgGetParam(msg, CMSG_CONTENT_PARAM, 0, NULL, &contentSize);
if (!ret)
goto end;
content = CryptMemAlloc(contentSize);
if (content)
{
ret = CryptMsgGetParam(msg, CMSG_CONTENT_PARAM, 0, content,
&contentSize);
if (ret)
{
ret = CryptDecodeObjectEx(dwMsgAndCertEncodingType, PKCS_CTL,
content, contentSize, CRYPT_DECODE_ALLOC_FLAG, NULL,
&ctlInfo, &size);
if (ret)
{
ctl = (ctl_t*)Context_CreateDataContext(sizeof(CTL_CONTEXT), &ctl_vtbl, &empty_store);
if (ctl)
{
BYTE *data = CryptMemAlloc(cbCtlEncoded);
if (data)
{
memcpy(data, pbCtlEncoded, cbCtlEncoded);
ctl->ctx.dwMsgAndCertEncodingType =
X509_ASN_ENCODING | PKCS_7_ASN_ENCODING;
ctl->ctx.pbCtlEncoded = data;
ctl->ctx.cbCtlEncoded = cbCtlEncoded;
ctl->ctx.pCtlInfo = ctlInfo;
ctl->ctx.hCertStore = &empty_store;
ctl->ctx.hCryptMsg = msg;
ctl->ctx.pbCtlContext = content;
ctl->ctx.cbCtlContext = contentSize;
}
else
{
SetLastError(ERROR_OUTOFMEMORY);
ret = FALSE;
}
}
else
{
SetLastError(ERROR_OUTOFMEMORY);
ret = FALSE;
}
}
}
}
else
{
SetLastError(ERROR_OUTOFMEMORY);
ret = FALSE;
}
end:
if (!ret)
{
if(ctl)
Context_Release(&ctl->base);
ctl = NULL;
LocalFree(ctlInfo);
CryptMemFree(content);
CryptMsgClose(msg);
return NULL;
}
return &ctl->ctx;
}
PCCTL_CONTEXT WINAPI CertDuplicateCTLContext(PCCTL_CONTEXT pCtlContext)
{
TRACE("(%p)\n", pCtlContext);
if (pCtlContext)
Context_AddRef(&ctl_from_ptr(pCtlContext)->base);
return pCtlContext;
}
BOOL WINAPI CertFreeCTLContext(PCCTL_CONTEXT pCTLContext)
{
TRACE("(%p)\n", pCTLContext);
if (pCTLContext)
Context_Release(&ctl_from_ptr(pCTLContext)->base);
return TRUE;
}
DWORD WINAPI CertEnumCTLContextProperties(PCCTL_CONTEXT pCTLContext,
DWORD dwPropId)
{
ctl_t *ctl = ctl_from_ptr(pCTLContext);
DWORD ret;
TRACE("(%p, %d)\n", pCTLContext, dwPropId);
if (ctl->base.properties)
ret = ContextPropertyList_EnumPropIDs(ctl->base.properties, dwPropId);
else
ret = 0;
return ret;
}
static BOOL CTLContext_SetProperty(ctl_t *ctl, DWORD dwPropId,
DWORD dwFlags, const void *pvData);
static BOOL CTLContext_GetHashProp(ctl_t *ctl, DWORD dwPropId,
ALG_ID algID, const BYTE *toHash, DWORD toHashLen, void *pvData,
DWORD *pcbData)
{
BOOL ret = CryptHashCertificate(0, algID, 0, toHash, toHashLen, pvData,
pcbData);
if (ret && pvData)
{
CRYPT_DATA_BLOB blob = { *pcbData, pvData };
ret = CTLContext_SetProperty(ctl, dwPropId, 0, &blob);
}
return ret;
}
static BOOL CTLContext_GetProperty(ctl_t *ctl, DWORD dwPropId,
void *pvData, DWORD *pcbData)
{
BOOL ret;
CRYPT_DATA_BLOB blob;
TRACE("(%p, %d, %p, %p)\n", ctl, dwPropId, pvData, pcbData);
if (ctl->base.properties)
ret = ContextPropertyList_FindProperty(ctl->base.properties, dwPropId, &blob);
else
ret = FALSE;
if (ret)
{
if (!pvData)
*pcbData = blob.cbData;
else if (*pcbData < blob.cbData)
{
SetLastError(ERROR_MORE_DATA);
*pcbData = blob.cbData;
ret = FALSE;
}
else
{
memcpy(pvData, blob.pbData, blob.cbData);
*pcbData = blob.cbData;
}
}
else
{
/* Implicit properties */
switch (dwPropId)
{
case CERT_SHA1_HASH_PROP_ID:
ret = CTLContext_GetHashProp(ctl, dwPropId, CALG_SHA1,
ctl->ctx.pbCtlEncoded, ctl->ctx.cbCtlEncoded, pvData, pcbData);
break;
case CERT_MD5_HASH_PROP_ID:
ret = CTLContext_GetHashProp(ctl, dwPropId, CALG_MD5,
ctl->ctx.pbCtlEncoded, ctl->ctx.cbCtlEncoded, pvData, pcbData);
break;
default:
SetLastError(CRYPT_E_NOT_FOUND);
}
}
TRACE("returning %d\n", ret);
return ret;
}
BOOL WINAPI CertGetCTLContextProperty(PCCTL_CONTEXT pCTLContext,
DWORD dwPropId, void *pvData, DWORD *pcbData)
{
BOOL ret;
TRACE("(%p, %d, %p, %p)\n", pCTLContext, dwPropId, pvData, pcbData);
switch (dwPropId)
{
case 0:
case CERT_CERT_PROP_ID:
case CERT_CRL_PROP_ID:
case CERT_CTL_PROP_ID:
SetLastError(E_INVALIDARG);
ret = FALSE;
break;
case CERT_ACCESS_STATE_PROP_ID:
if (!pvData)
{
*pcbData = sizeof(DWORD);
ret = TRUE;
}
else if (*pcbData < sizeof(DWORD))
{
SetLastError(ERROR_MORE_DATA);
*pcbData = sizeof(DWORD);
ret = FALSE;
}
else
{
ret = CertGetStoreProperty(pCTLContext->hCertStore, dwPropId, pvData, pcbData);
}
break;
default:
ret = CTLContext_GetProperty(ctl_from_ptr(pCTLContext), dwPropId, pvData,
pcbData);
}
return ret;
}
static BOOL CTLContext_SetProperty(ctl_t *ctl, DWORD dwPropId,
DWORD dwFlags, const void *pvData)
{
BOOL ret;
TRACE("(%p, %d, %08x, %p)\n", ctl, dwPropId, dwFlags, pvData);
if (!ctl->base.properties)
ret = FALSE;
else if (!pvData)
{
ContextPropertyList_RemoveProperty(ctl->base.properties, dwPropId);
ret = TRUE;
}
else
{
switch (dwPropId)
{
case CERT_AUTO_ENROLL_PROP_ID:
case CERT_CTL_USAGE_PROP_ID: /* same as CERT_ENHKEY_USAGE_PROP_ID */
case CERT_DESCRIPTION_PROP_ID:
case CERT_FRIENDLY_NAME_PROP_ID:
case CERT_HASH_PROP_ID:
case CERT_KEY_IDENTIFIER_PROP_ID:
case CERT_MD5_HASH_PROP_ID:
case CERT_NEXT_UPDATE_LOCATION_PROP_ID:
case CERT_PUBKEY_ALG_PARA_PROP_ID:
case CERT_PVK_FILE_PROP_ID:
case CERT_SIGNATURE_HASH_PROP_ID:
case CERT_ISSUER_PUBLIC_KEY_MD5_HASH_PROP_ID:
case CERT_SUBJECT_NAME_MD5_HASH_PROP_ID:
case CERT_SUBJECT_PUBLIC_KEY_MD5_HASH_PROP_ID:
case CERT_ENROLLMENT_PROP_ID:
case CERT_CROSS_CERT_DIST_POINTS_PROP_ID:
case CERT_RENEWAL_PROP_ID:
{
PCRYPT_DATA_BLOB blob = (PCRYPT_DATA_BLOB)pvData;
ret = ContextPropertyList_SetProperty(ctl->base.properties, dwPropId,
blob->pbData, blob->cbData);
break;
}
case CERT_DATE_STAMP_PROP_ID:
ret = ContextPropertyList_SetProperty(ctl->base.properties, dwPropId,
pvData, sizeof(FILETIME));
break;
default:
FIXME("%d: stub\n", dwPropId);
ret = FALSE;
}
}
TRACE("returning %d\n", ret);
return ret;
}
BOOL WINAPI CertSetCTLContextProperty(PCCTL_CONTEXT pCTLContext,
DWORD dwPropId, DWORD dwFlags, const void *pvData)
{
BOOL ret;
TRACE("(%p, %d, %08x, %p)\n", pCTLContext, dwPropId, dwFlags, pvData);
/* Handle special cases for "read-only"/invalid prop IDs. Windows just
* crashes on most of these, I'll be safer.
*/
switch (dwPropId)
{
case 0:
case CERT_ACCESS_STATE_PROP_ID:
case CERT_CERT_PROP_ID:
case CERT_CRL_PROP_ID:
case CERT_CTL_PROP_ID:
SetLastError(E_INVALIDARG);
return FALSE;
}
ret = CTLContext_SetProperty(ctl_from_ptr(pCTLContext), dwPropId, dwFlags, pvData);
TRACE("returning %d\n", ret);
return ret;
}