/* * Copyright (C) 2006 Maarten Lankhorst * Copyright 2007 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 "config.h" #include "wine/port.h" #define NONAMELESSUNION #define NONAMELESSSTRUCT #define CERT_REVOCATION_PARA_HAS_EXTRA_FIELDS #include #include #include "windef.h" #include "winbase.h" #include "winnt.h" #include "winnls.h" #include "wininet.h" #include "objbase.h" #include "wincrypt.h" #include "wine/debug.h" WINE_DEFAULT_DEBUG_CHANNEL(cryptnet); #define IS_INTOID(x) (((ULONG_PTR)(x) >> 16) == 0) BOOL WINAPI DllMain(HINSTANCE hinstDLL, DWORD fdwReason, LPVOID lpvReserved) { TRACE("(0x%p, %d, %p)\n", hinstDLL, fdwReason, lpvReserved); switch (fdwReason) { case DLL_PROCESS_ATTACH: DisableThreadLibraryCalls(hinstDLL); break; case DLL_PROCESS_DETACH: /* Do uninitialisation here */ break; default: break; } return TRUE; } static const WCHAR cryptNet[] = { 'c','r','y','p','t','n','e','t','.', 'd','l','l',0 }; static const WCHAR ldapProvOpenStore[] = { 'L','d','a','p','P','r','o','v', 'O','p','e','S','t','o','r','e',0 }; /*********************************************************************** * DllRegisterServer (CRYPTNET.@) */ HRESULT WINAPI DllRegisterServer(void) { TRACE("\n"); CryptRegisterDefaultOIDFunction(X509_ASN_ENCODING, CRYPT_OID_VERIFY_REVOCATION_FUNC, 0, cryptNet); CryptRegisterOIDFunction(0, CRYPT_OID_OPEN_STORE_PROV_FUNC, "Ldap", cryptNet, "LdapProvOpenStore"); CryptRegisterOIDFunction(0, CRYPT_OID_OPEN_STORE_PROV_FUNC, CERT_STORE_PROV_LDAP_W, cryptNet, "LdapProvOpenStore"); return S_OK; } /*********************************************************************** * DllUnregisterServer (CRYPTNET.@) */ HRESULT WINAPI DllUnregisterServer(void) { TRACE("\n"); CryptUnregisterDefaultOIDFunction(X509_ASN_ENCODING, CRYPT_OID_VERIFY_REVOCATION_FUNC, cryptNet); CryptUnregisterOIDFunction(0, CRYPT_OID_OPEN_STORE_PROV_FUNC, "Ldap"); CryptUnregisterOIDFunction(0, CRYPT_OID_OPEN_STORE_PROV_FUNC, CERT_STORE_PROV_LDAP_W); return S_OK; } static const char *url_oid_to_str(LPCSTR oid) { if (IS_INTOID(oid)) { static char buf[10]; switch (LOWORD(oid)) { #define _x(oid) case LOWORD(oid): return #oid _x(URL_OID_CERTIFICATE_ISSUER); _x(URL_OID_CERTIFICATE_CRL_DIST_POINT); _x(URL_OID_CTL_ISSUER); _x(URL_OID_CTL_NEXT_UPDATE); _x(URL_OID_CRL_ISSUER); _x(URL_OID_CERTIFICATE_FRESHEST_CRL); _x(URL_OID_CRL_FRESHEST_CRL); _x(URL_OID_CROSS_CERT_DIST_POINT); #undef _x default: snprintf(buf, sizeof(buf), "%d", LOWORD(oid)); return buf; } } else return oid; } typedef BOOL (WINAPI *UrlDllGetObjectUrlFunc)(LPCSTR, LPVOID, DWORD, PCRYPT_URL_ARRAY, DWORD *, PCRYPT_URL_INFO, DWORD *, LPVOID); static BOOL WINAPI CRYPT_GetUrlFromCertificateIssuer(LPCSTR pszUrlOid, LPVOID pvPara, DWORD dwFlags, PCRYPT_URL_ARRAY pUrlArray, DWORD *pcbUrlArray, PCRYPT_URL_INFO pUrlInfo, DWORD *pcbUrlInfo, LPVOID pvReserved) { PCCERT_CONTEXT cert = pvPara; PCERT_EXTENSION ext; BOOL ret = FALSE; /* The only applicable flag is CRYPT_GET_URL_FROM_EXTENSION */ if (dwFlags && !(dwFlags & CRYPT_GET_URL_FROM_EXTENSION)) { SetLastError(CRYPT_E_NOT_FOUND); return FALSE; } if ((ext = CertFindExtension(szOID_AUTHORITY_INFO_ACCESS, cert->pCertInfo->cExtension, cert->pCertInfo->rgExtension))) { CERT_AUTHORITY_INFO_ACCESS *aia; DWORD size; ret = CryptDecodeObjectEx(X509_ASN_ENCODING, X509_AUTHORITY_INFO_ACCESS, ext->Value.pbData, ext->Value.cbData, CRYPT_DECODE_ALLOC_FLAG, NULL, &aia, &size); if (ret) { DWORD i, cUrl, bytesNeeded = sizeof(CRYPT_URL_ARRAY); for (i = 0, cUrl = 0; i < aia->cAccDescr; i++) if (!strcmp(aia->rgAccDescr[i].pszAccessMethod, szOID_PKIX_CA_ISSUERS)) { if (aia->rgAccDescr[i].AccessLocation.dwAltNameChoice == CERT_ALT_NAME_URL) { if (aia->rgAccDescr[i].AccessLocation.u.pwszURL) { cUrl++; bytesNeeded += sizeof(LPWSTR) + (lstrlenW(aia->rgAccDescr[i].AccessLocation.u. pwszURL) + 1) * sizeof(WCHAR); } } else FIXME("unsupported alt name type %d\n", aia->rgAccDescr[i].AccessLocation.dwAltNameChoice); } if (!pcbUrlArray) { SetLastError(E_INVALIDARG); ret = FALSE; } else if (!pUrlArray) *pcbUrlArray = bytesNeeded; else if (*pcbUrlArray < bytesNeeded) { SetLastError(ERROR_MORE_DATA); *pcbUrlArray = bytesNeeded; ret = FALSE; } else { LPWSTR nextUrl; *pcbUrlArray = bytesNeeded; pUrlArray->cUrl = 0; pUrlArray->rgwszUrl = (LPWSTR *)((BYTE *)pUrlArray + sizeof(CRYPT_URL_ARRAY)); nextUrl = (LPWSTR)((BYTE *)pUrlArray + sizeof(CRYPT_URL_ARRAY) + cUrl * sizeof(LPWSTR)); for (i = 0; i < aia->cAccDescr; i++) if (!strcmp(aia->rgAccDescr[i].pszAccessMethod, szOID_PKIX_CA_ISSUERS)) { if (aia->rgAccDescr[i].AccessLocation.dwAltNameChoice == CERT_ALT_NAME_URL) { if (aia->rgAccDescr[i].AccessLocation.u.pwszURL) { lstrcpyW(nextUrl, aia->rgAccDescr[i].AccessLocation.u.pwszURL); pUrlArray->rgwszUrl[pUrlArray->cUrl++] = nextUrl; nextUrl += (lstrlenW(nextUrl) + 1); } } } } if (ret) { if (pcbUrlInfo) { FIXME("url info: stub\n"); if (!pUrlInfo) *pcbUrlInfo = sizeof(CRYPT_URL_INFO); else if (*pcbUrlInfo < sizeof(CRYPT_URL_INFO)) { *pcbUrlInfo = sizeof(CRYPT_URL_INFO); SetLastError(ERROR_MORE_DATA); ret = FALSE; } else { *pcbUrlInfo = sizeof(CRYPT_URL_INFO); memset(pUrlInfo, 0, sizeof(CRYPT_URL_INFO)); } } } LocalFree(aia); } } else SetLastError(CRYPT_E_NOT_FOUND); return ret; } static BOOL CRYPT_GetUrlFromCRLDistPointsExt(const CRYPT_DATA_BLOB *value, PCRYPT_URL_ARRAY pUrlArray, DWORD *pcbUrlArray, PCRYPT_URL_INFO pUrlInfo, DWORD *pcbUrlInfo) { BOOL ret; CRL_DIST_POINTS_INFO *info; DWORD size; ret = CryptDecodeObjectEx(X509_ASN_ENCODING, X509_CRL_DIST_POINTS, value->pbData, value->cbData, CRYPT_DECODE_ALLOC_FLAG, NULL, &info, &size); if (ret) { DWORD i, cUrl, bytesNeeded = sizeof(CRYPT_URL_ARRAY); for (i = 0, cUrl = 0; i < info->cDistPoint; i++) if (info->rgDistPoint[i].DistPointName.dwDistPointNameChoice == CRL_DIST_POINT_FULL_NAME) { DWORD j; CERT_ALT_NAME_INFO *name = &info->rgDistPoint[i].DistPointName.u.FullName; for (j = 0; j < name->cAltEntry; j++) if (name->rgAltEntry[j].dwAltNameChoice == CERT_ALT_NAME_URL) { if (name->rgAltEntry[j].u.pwszURL) { cUrl++; bytesNeeded += sizeof(LPWSTR) + (lstrlenW(name->rgAltEntry[j].u.pwszURL) + 1) * sizeof(WCHAR); } } } if (!pcbUrlArray) { SetLastError(E_INVALIDARG); ret = FALSE; } else if (!pUrlArray) *pcbUrlArray = bytesNeeded; else if (*pcbUrlArray < bytesNeeded) { SetLastError(ERROR_MORE_DATA); *pcbUrlArray = bytesNeeded; ret = FALSE; } else { LPWSTR nextUrl; *pcbUrlArray = bytesNeeded; pUrlArray->cUrl = 0; pUrlArray->rgwszUrl = (LPWSTR *)((BYTE *)pUrlArray + sizeof(CRYPT_URL_ARRAY)); nextUrl = (LPWSTR)((BYTE *)pUrlArray + sizeof(CRYPT_URL_ARRAY) + cUrl * sizeof(LPWSTR)); for (i = 0; i < info->cDistPoint; i++) if (info->rgDistPoint[i].DistPointName.dwDistPointNameChoice == CRL_DIST_POINT_FULL_NAME) { DWORD j; CERT_ALT_NAME_INFO *name = &info->rgDistPoint[i].DistPointName.u.FullName; for (j = 0; j < name->cAltEntry; j++) if (name->rgAltEntry[j].dwAltNameChoice == CERT_ALT_NAME_URL) { if (name->rgAltEntry[j].u.pwszURL) { lstrcpyW(nextUrl, name->rgAltEntry[j].u.pwszURL); pUrlArray->rgwszUrl[pUrlArray->cUrl++] = nextUrl; nextUrl += (lstrlenW(name->rgAltEntry[j].u.pwszURL) + 1); } } } } if (ret) { if (pcbUrlInfo) { FIXME("url info: stub\n"); if (!pUrlInfo) *pcbUrlInfo = sizeof(CRYPT_URL_INFO); else if (*pcbUrlInfo < sizeof(CRYPT_URL_INFO)) { *pcbUrlInfo = sizeof(CRYPT_URL_INFO); SetLastError(ERROR_MORE_DATA); ret = FALSE; } else { *pcbUrlInfo = sizeof(CRYPT_URL_INFO); memset(pUrlInfo, 0, sizeof(CRYPT_URL_INFO)); } } } LocalFree(info); } return ret; } static BOOL WINAPI CRYPT_GetUrlFromCertificateCRLDistPoint(LPCSTR pszUrlOid, LPVOID pvPara, DWORD dwFlags, PCRYPT_URL_ARRAY pUrlArray, DWORD *pcbUrlArray, PCRYPT_URL_INFO pUrlInfo, DWORD *pcbUrlInfo, LPVOID pvReserved) { PCCERT_CONTEXT cert = pvPara; PCERT_EXTENSION ext; BOOL ret = FALSE; /* The only applicable flag is CRYPT_GET_URL_FROM_EXTENSION */ if (dwFlags && !(dwFlags & CRYPT_GET_URL_FROM_EXTENSION)) { SetLastError(CRYPT_E_NOT_FOUND); return FALSE; } if ((ext = CertFindExtension(szOID_CRL_DIST_POINTS, cert->pCertInfo->cExtension, cert->pCertInfo->rgExtension))) ret = CRYPT_GetUrlFromCRLDistPointsExt(&ext->Value, pUrlArray, pcbUrlArray, pUrlInfo, pcbUrlInfo); else SetLastError(CRYPT_E_NOT_FOUND); return ret; } /*********************************************************************** * CryptGetObjectUrl (CRYPTNET.@) */ BOOL WINAPI CryptGetObjectUrl(LPCSTR pszUrlOid, LPVOID pvPara, DWORD dwFlags, PCRYPT_URL_ARRAY pUrlArray, DWORD *pcbUrlArray, PCRYPT_URL_INFO pUrlInfo, DWORD *pcbUrlInfo, LPVOID pvReserved) { UrlDllGetObjectUrlFunc func = NULL; HCRYPTOIDFUNCADDR hFunc = NULL; BOOL ret = FALSE; TRACE("(%s, %p, %08x, %p, %p, %p, %p, %p)\n", debugstr_a(pszUrlOid), pvPara, dwFlags, pUrlArray, pcbUrlArray, pUrlInfo, pcbUrlInfo, pvReserved); if (IS_INTOID(pszUrlOid)) { switch (LOWORD(pszUrlOid)) { case LOWORD(URL_OID_CERTIFICATE_ISSUER): func = CRYPT_GetUrlFromCertificateIssuer; break; case LOWORD(URL_OID_CERTIFICATE_CRL_DIST_POINT): func = CRYPT_GetUrlFromCertificateCRLDistPoint; break; default: FIXME("unimplemented for %s\n", url_oid_to_str(pszUrlOid)); SetLastError(ERROR_FILE_NOT_FOUND); } } else { static HCRYPTOIDFUNCSET set = NULL; if (!set) set = CryptInitOIDFunctionSet(URL_OID_GET_OBJECT_URL_FUNC, 0); CryptGetOIDFunctionAddress(set, X509_ASN_ENCODING, pszUrlOid, 0, (void **)&func, &hFunc); } if (func) ret = func(pszUrlOid, pvPara, dwFlags, pUrlArray, pcbUrlArray, pUrlInfo, pcbUrlInfo, pvReserved); if (hFunc) CryptFreeOIDFunctionAddress(hFunc, 0); return ret; } /*********************************************************************** * CryptRetrieveObjectByUrlA (CRYPTNET.@) */ BOOL WINAPI CryptRetrieveObjectByUrlA(LPCSTR pszURL, LPCSTR pszObjectOid, DWORD dwRetrievalFlags, DWORD dwTimeout, LPVOID *ppvObject, HCRYPTASYNC hAsyncRetrieve, PCRYPT_CREDENTIALS pCredentials, LPVOID pvVerify, PCRYPT_RETRIEVE_AUX_INFO pAuxInfo) { BOOL ret = FALSE; int len; TRACE("(%s, %s, %08x, %d, %p, %p, %p, %p, %p)\n", debugstr_a(pszURL), debugstr_a(pszObjectOid), dwRetrievalFlags, dwTimeout, ppvObject, hAsyncRetrieve, pCredentials, pvVerify, pAuxInfo); if (!pszURL) { SetLastError(ERROR_INVALID_PARAMETER); return FALSE; } len = MultiByteToWideChar(CP_ACP, 0, pszURL, -1, NULL, 0); if (len) { LPWSTR url = CryptMemAlloc(len * sizeof(WCHAR)); if (url) { MultiByteToWideChar(CP_ACP, 0, pszURL, -1, url, len); ret = CryptRetrieveObjectByUrlW(url, pszObjectOid, dwRetrievalFlags, dwTimeout, ppvObject, hAsyncRetrieve, pCredentials, pvVerify, pAuxInfo); CryptMemFree(url); } else SetLastError(ERROR_OUTOFMEMORY); } return ret; } static void WINAPI CRYPT_FreeBlob(LPCSTR pszObjectOid, PCRYPT_BLOB_ARRAY pObject, void *pvFreeContext) { DWORD i; for (i = 0; i < pObject->cBlob; i++) CryptMemFree(pObject->rgBlob[i].pbData); CryptMemFree(pObject->rgBlob); } static BOOL CRYPT_GetObjectFromFile(HANDLE hFile, PCRYPT_BLOB_ARRAY pObject) { BOOL ret; LARGE_INTEGER size; if ((ret = GetFileSizeEx(hFile, &size))) { if (size.u.HighPart) { WARN("file too big\n"); SetLastError(ERROR_INVALID_DATA); ret = FALSE; } else { CRYPT_DATA_BLOB blob; blob.pbData = CryptMemAlloc(size.u.LowPart); if (blob.pbData) { blob.cbData = size.u.LowPart; ret = ReadFile(hFile, blob.pbData, size.u.LowPart, &blob.cbData, NULL); if (ret) { pObject->rgBlob = CryptMemAlloc(sizeof(CRYPT_DATA_BLOB)); if (pObject->rgBlob) { pObject->cBlob = 1; memcpy(pObject->rgBlob, &blob, sizeof(CRYPT_DATA_BLOB)); } else { SetLastError(ERROR_OUTOFMEMORY); ret = FALSE; } } if (!ret) CryptMemFree(blob.pbData); } else { SetLastError(ERROR_OUTOFMEMORY); ret = FALSE; } } } return ret; } static BOOL CRYPT_GetObjectFromCache(LPCWSTR pszURL, PCRYPT_BLOB_ARRAY pObject, PCRYPT_RETRIEVE_AUX_INFO pAuxInfo) { BOOL ret = FALSE; INTERNET_CACHE_ENTRY_INFOW *pCacheInfo = NULL; DWORD size = 0; TRACE("(%s, %p, %p)\n", debugstr_w(pszURL), pObject, pAuxInfo); ret = GetUrlCacheEntryInfoW(pszURL, NULL, &size); if (!ret && GetLastError() == ERROR_INSUFFICIENT_BUFFER) { pCacheInfo = CryptMemAlloc(size); if (pCacheInfo) ret = TRUE; else SetLastError(ERROR_OUTOFMEMORY); } if (ret && (ret = GetUrlCacheEntryInfoW(pszURL, pCacheInfo, &size))) { FILETIME ft; GetSystemTimeAsFileTime(&ft); if (CompareFileTime(&pCacheInfo->ExpireTime, &ft) >= 0) { HANDLE hFile = CreateFileW(pCacheInfo->lpszLocalFileName, GENERIC_READ, 0, NULL, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL); if (hFile != INVALID_HANDLE_VALUE) { if ((ret = CRYPT_GetObjectFromFile(hFile, pObject))) { if (pAuxInfo && pAuxInfo->cbSize >= offsetof(CRYPT_RETRIEVE_AUX_INFO, pLastSyncTime) + sizeof(PFILETIME) && pAuxInfo->pLastSyncTime) memcpy(pAuxInfo->pLastSyncTime, &pCacheInfo->LastSyncTime, sizeof(FILETIME)); } CloseHandle(hFile); } else { DeleteUrlCacheEntryW(pszURL); ret = FALSE; } } else { DeleteUrlCacheEntryW(pszURL); ret = FALSE; } } CryptMemFree(pCacheInfo); TRACE("returning %d\n", ret); return ret; } /* Parses the URL, and sets components' lpszHostName and lpszUrlPath members * to NULL-terminated copies of those portions of the URL (to be freed with * CryptMemFree.) */ static BOOL CRYPT_CrackUrl(LPCWSTR pszURL, URL_COMPONENTSW *components) { BOOL ret; TRACE("(%s, %p)\n", debugstr_w(pszURL), components); memset(components, 0, sizeof(*components)); components->dwStructSize = sizeof(*components); components->lpszHostName = CryptMemAlloc(MAX_PATH * sizeof(WCHAR)); components->dwHostNameLength = MAX_PATH; components->lpszUrlPath = CryptMemAlloc(MAX_PATH * 2 * sizeof(WCHAR)); components->dwUrlPathLength = 2 * MAX_PATH; ret = InternetCrackUrlW(pszURL, 0, ICU_DECODE, components); if (ret) { if ((components->dwUrlPathLength == 2 * MAX_PATH - 1) || (components->dwHostNameLength == MAX_PATH - 1)) FIXME("Buffers are too small\n"); switch (components->nScheme) { case INTERNET_SCHEME_FTP: if (!components->nPort) components->nPort = INTERNET_DEFAULT_FTP_PORT; break; case INTERNET_SCHEME_HTTP: if (!components->nPort) components->nPort = INTERNET_DEFAULT_HTTP_PORT; break; default: ; /* do nothing */ } } TRACE("returning %d\n", ret); return ret; } struct InetContext { HANDLE event; DWORD timeout; DWORD error; }; static struct InetContext *CRYPT_MakeInetContext(DWORD dwTimeout) { struct InetContext *context = CryptMemAlloc(sizeof(struct InetContext)); if (context) { context->event = CreateEventW(NULL, FALSE, FALSE, NULL); if (!context->event) { CryptMemFree(context); context = NULL; } else { context->timeout = dwTimeout; context->error = ERROR_SUCCESS; } } return context; } static BOOL CRYPT_DownloadObject(DWORD dwRetrievalFlags, HINTERNET hHttp, struct InetContext *context, PCRYPT_BLOB_ARRAY pObject, PCRYPT_RETRIEVE_AUX_INFO pAuxInfo) { CRYPT_DATA_BLOB object = { 0, NULL }; DWORD bytesAvailable; BOOL ret; do { if ((ret = InternetQueryDataAvailable(hHttp, &bytesAvailable, 0, 0))) { if (bytesAvailable) { if (object.pbData) object.pbData = CryptMemRealloc(object.pbData, object.cbData + bytesAvailable); else object.pbData = CryptMemAlloc(bytesAvailable); if (object.pbData) { INTERNET_BUFFERSA buffer = { sizeof(buffer), 0 }; buffer.dwBufferLength = bytesAvailable; buffer.lpvBuffer = object.pbData + object.cbData; if (!(ret = InternetReadFileExA(hHttp, &buffer, IRF_NO_WAIT, (DWORD_PTR)context))) { if (GetLastError() == ERROR_IO_PENDING) { if (WaitForSingleObject(context->event, context->timeout) == WAIT_TIMEOUT) SetLastError(ERROR_TIMEOUT); else if (context->error) SetLastError(context->error); else ret = TRUE; } } if (ret) object.cbData += buffer.dwBufferLength; } else { SetLastError(ERROR_OUTOFMEMORY); ret = FALSE; } } } else if (GetLastError() == ERROR_IO_PENDING) { if (WaitForSingleObject(context->event, context->timeout) == WAIT_TIMEOUT) SetLastError(ERROR_TIMEOUT); else ret = TRUE; } } while (ret && bytesAvailable); if (ret) { pObject->rgBlob = CryptMemAlloc(sizeof(CRYPT_DATA_BLOB)); if (!pObject->rgBlob) { CryptMemFree(object.pbData); SetLastError(ERROR_OUTOFMEMORY); ret = FALSE; } else { pObject->rgBlob[0].cbData = object.cbData; pObject->rgBlob[0].pbData = object.pbData; pObject->cBlob = 1; } } TRACE("returning %d\n", ret); return ret; } /* Finds the object specified by pszURL in the cache. If it's not found, * creates a new cache entry for the object and writes the object to it. * Sets the expiration time of the cache entry to expires. */ static void CRYPT_CacheURL(LPCWSTR pszURL, const CRYPT_BLOB_ARRAY *pObject, DWORD dwRetrievalFlags, FILETIME expires) { WCHAR cacheFileName[MAX_PATH]; DWORD size = 0; BOOL ret, create = FALSE; GetUrlCacheEntryInfoW(pszURL, NULL, &size); if (GetLastError() == ERROR_INSUFFICIENT_BUFFER) { INTERNET_CACHE_ENTRY_INFOW *info = CryptMemAlloc(size); if (info) { FILETIME ft; ret = GetUrlCacheEntryInfoW(pszURL, info, &size); if (ret) lstrcpyW(cacheFileName, info->lpszLocalFileName); /* Check if the existing cache entry is up to date. If it isn't, * remove the existing cache entry, and create a new one with the * new value. */ GetSystemTimeAsFileTime(&ft); if (CompareFileTime(&info->ExpireTime, &ft) < 0) { create = TRUE; DeleteUrlCacheEntryW(pszURL); } CryptMemFree(info); } else ret = FALSE; } else { ret = CreateUrlCacheEntryW(pszURL, pObject->rgBlob[0].cbData, NULL, cacheFileName, 0); create = TRUE; } if (ret) { DWORD entryType; FILETIME ft = { 0 }; if (create) { HANDLE hCacheFile = CreateFileW(cacheFileName, GENERIC_WRITE, 0, NULL, CREATE_ALWAYS, FILE_ATTRIBUTE_NORMAL, NULL); if (hCacheFile != INVALID_HANDLE_VALUE) { DWORD bytesWritten; WriteFile(hCacheFile, pObject->rgBlob[0].pbData, pObject->rgBlob[0].cbData, &bytesWritten, NULL); CloseHandle(hCacheFile); } else ret = FALSE; } if (ret) { if (!(dwRetrievalFlags & CRYPT_STICKY_CACHE_RETRIEVAL)) entryType = NORMAL_CACHE_ENTRY; else entryType = STICKY_CACHE_ENTRY; CommitUrlCacheEntryW(pszURL, cacheFileName, expires, ft, entryType, NULL, 0, NULL, NULL); } } } static void CALLBACK CRYPT_InetStatusCallback(HINTERNET hInt, DWORD_PTR dwContext, DWORD status, void *statusInfo, DWORD statusInfoLen) { struct InetContext *context = (struct InetContext *)dwContext; LPINTERNET_ASYNC_RESULT result; switch (status) { case INTERNET_STATUS_REQUEST_COMPLETE: result = statusInfo; context->error = result->dwError; SetEvent(context->event); } } static BOOL CRYPT_Connect(const URL_COMPONENTSW *components, struct InetContext *context, PCRYPT_CREDENTIALS pCredentials, HINTERNET *phInt, HINTERNET *phHost) { BOOL ret; TRACE("(%s:%d, %p, %p, %p, %p)\n", debugstr_w(components->lpszHostName), components->nPort, context, pCredentials, phInt, phInt); *phHost = NULL; *phInt = InternetOpenW(NULL, INTERNET_OPEN_TYPE_DIRECT, NULL, NULL, context ? INTERNET_FLAG_ASYNC : 0); if (*phInt) { DWORD service; if (context) InternetSetStatusCallbackW(*phInt, CRYPT_InetStatusCallback); switch (components->nScheme) { case INTERNET_SCHEME_FTP: service = INTERNET_SERVICE_FTP; break; case INTERNET_SCHEME_HTTP: service = INTERNET_SERVICE_HTTP; break; default: service = 0; } /* FIXME: use pCredentials for username/password */ *phHost = InternetConnectW(*phInt, components->lpszHostName, components->nPort, NULL, NULL, service, 0, (DWORD_PTR)context); if (!*phHost) { InternetCloseHandle(*phInt); *phInt = NULL; ret = FALSE; } else ret = TRUE; } else ret = FALSE; TRACE("returning %d\n", ret); return ret; } static BOOL WINAPI FTP_RetrieveEncodedObjectW(LPCWSTR pszURL, LPCSTR pszObjectOid, DWORD dwRetrievalFlags, DWORD dwTimeout, PCRYPT_BLOB_ARRAY pObject, PFN_FREE_ENCODED_OBJECT_FUNC *ppfnFreeObject, void **ppvFreeContext, HCRYPTASYNC hAsyncRetrieve, PCRYPT_CREDENTIALS pCredentials, PCRYPT_RETRIEVE_AUX_INFO pAuxInfo) { FIXME("(%s, %s, %08x, %d, %p, %p, %p, %p, %p, %p)\n", debugstr_w(pszURL), debugstr_a(pszObjectOid), dwRetrievalFlags, dwTimeout, pObject, ppfnFreeObject, ppvFreeContext, hAsyncRetrieve, pCredentials, pAuxInfo); pObject->cBlob = 0; pObject->rgBlob = NULL; *ppfnFreeObject = CRYPT_FreeBlob; *ppvFreeContext = NULL; return FALSE; } static const WCHAR x509cacert[] = { 'a','p','p','l','i','c','a','t','i','o','n', '/','x','-','x','5','0','9','-','c','a','-','c','e','r','t',0 }; static const WCHAR x509emailcert[] = { 'a','p','p','l','i','c','a','t','i','o', 'n','/','x','-','x','5','0','9','-','e','m','a','i','l','-','c','e','r','t', 0 }; static const WCHAR x509servercert[] = { 'a','p','p','l','i','c','a','t','i','o', 'n','/','x','-','x','5','0','9','-','s','e','r','v','e','r','-','c','e','r', 't',0 }; static const WCHAR x509usercert[] = { 'a','p','p','l','i','c','a','t','i','o', 'n','/','x','-','x','5','0','9','-','u','s','e','r','-','c','e','r','t',0 }; static const WCHAR pkcs7cert[] = { 'a','p','p','l','i','c','a','t','i','o','n', '/','x','-','p','k','c','s','7','-','c','e','r','t','i','f','c','a','t','e', 's',0 }; static const WCHAR pkixCRL[] = { 'a','p','p','l','i','c','a','t','i','o','n', '/','p','k','i','x','-','c','r','l',0 }; static const WCHAR pkcs7CRL[] = { 'a','p','p','l','i','c','a','t','i','o','n', '/','x','-','p','k','c','s','7','-','c','r','l',0 }; static const WCHAR pkcs7sig[] = { 'a','p','p','l','i','c','a','t','i','o','n', '/','x','-','p','k','c','s','7','-','s','i','g','n','a','t','u','r','e',0 }; static const WCHAR pkcs7mime[] = { 'a','p','p','l','i','c','a','t','i','o','n', '/','x','-','p','k','c','s','7','-','m','i','m','e',0 }; static BOOL WINAPI HTTP_RetrieveEncodedObjectW(LPCWSTR pszURL, LPCSTR pszObjectOid, DWORD dwRetrievalFlags, DWORD dwTimeout, PCRYPT_BLOB_ARRAY pObject, PFN_FREE_ENCODED_OBJECT_FUNC *ppfnFreeObject, void **ppvFreeContext, HCRYPTASYNC hAsyncRetrieve, PCRYPT_CREDENTIALS pCredentials, PCRYPT_RETRIEVE_AUX_INFO pAuxInfo) { BOOL ret = FALSE; TRACE("(%s, %s, %08x, %d, %p, %p, %p, %p, %p, %p)\n", debugstr_w(pszURL), debugstr_a(pszObjectOid), dwRetrievalFlags, dwTimeout, pObject, ppfnFreeObject, ppvFreeContext, hAsyncRetrieve, pCredentials, pAuxInfo); pObject->cBlob = 0; pObject->rgBlob = NULL; *ppfnFreeObject = CRYPT_FreeBlob; *ppvFreeContext = NULL; if (!(dwRetrievalFlags & CRYPT_WIRE_ONLY_RETRIEVAL)) ret = CRYPT_GetObjectFromCache(pszURL, pObject, pAuxInfo); if (!ret && (!(dwRetrievalFlags & CRYPT_CACHE_ONLY_RETRIEVAL) || (dwRetrievalFlags & CRYPT_WIRE_ONLY_RETRIEVAL))) { URL_COMPONENTSW components; if ((ret = CRYPT_CrackUrl(pszURL, &components))) { HINTERNET hInt, hHost; struct InetContext *context = NULL; if (dwTimeout) context = CRYPT_MakeInetContext(dwTimeout); ret = CRYPT_Connect(&components, context, pCredentials, &hInt, &hHost); if (ret) { static LPCWSTR types[] = { x509cacert, x509emailcert, x509servercert, x509usercert, pkcs7cert, pkixCRL, pkcs7CRL, pkcs7sig, pkcs7mime, NULL }; HINTERNET hHttp = HttpOpenRequestW(hHost, NULL, components.lpszUrlPath, NULL, NULL, types, INTERNET_FLAG_NO_COOKIES | INTERNET_FLAG_NO_UI, (DWORD_PTR)context); if (hHttp) { if (dwTimeout) { InternetSetOptionW(hHttp, INTERNET_OPTION_RECEIVE_TIMEOUT, &dwTimeout, sizeof(dwTimeout)); InternetSetOptionW(hHttp, INTERNET_OPTION_SEND_TIMEOUT, &dwTimeout, sizeof(dwTimeout)); } ret = HttpSendRequestExW(hHttp, NULL, NULL, 0, (DWORD_PTR)context); if (!ret && GetLastError() == ERROR_IO_PENDING) { if (WaitForSingleObject(context->event, context->timeout) == WAIT_TIMEOUT) SetLastError(ERROR_TIMEOUT); else ret = TRUE; } /* We don't set ret to TRUE in this block to avoid masking * an error from HttpSendRequestExW. */ if (!HttpEndRequestW(hHttp, NULL, 0, (DWORD_PTR)context) && GetLastError() == ERROR_IO_PENDING) { if (WaitForSingleObject(context->event, context->timeout) == WAIT_TIMEOUT) { SetLastError(ERROR_TIMEOUT); ret = FALSE; } } if (ret) ret = CRYPT_DownloadObject(dwRetrievalFlags, hHttp, context, pObject, pAuxInfo); if (ret && !(dwRetrievalFlags & CRYPT_DONT_CACHE_RESULT)) { SYSTEMTIME st; DWORD len = sizeof(st); if (HttpQueryInfoW(hHttp, HTTP_QUERY_EXPIRES | HTTP_QUERY_FLAG_SYSTEMTIME, &st, &len, NULL)) { FILETIME ft; SystemTimeToFileTime(&st, &ft); CRYPT_CacheURL(pszURL, pObject, dwRetrievalFlags, ft); } } InternetCloseHandle(hHttp); } InternetCloseHandle(hHost); InternetCloseHandle(hInt); } if (context) { CloseHandle(context->event); CryptMemFree(context); } CryptMemFree(components.lpszUrlPath); CryptMemFree(components.lpszHostName); } } TRACE("returning %d\n", ret); return ret; } static BOOL WINAPI File_RetrieveEncodedObjectW(LPCWSTR pszURL, LPCSTR pszObjectOid, DWORD dwRetrievalFlags, DWORD dwTimeout, PCRYPT_BLOB_ARRAY pObject, PFN_FREE_ENCODED_OBJECT_FUNC *ppfnFreeObject, void **ppvFreeContext, HCRYPTASYNC hAsyncRetrieve, PCRYPT_CREDENTIALS pCredentials, PCRYPT_RETRIEVE_AUX_INFO pAuxInfo) { URL_COMPONENTSW components = { sizeof(components), 0 }; BOOL ret; TRACE("(%s, %s, %08x, %d, %p, %p, %p, %p, %p, %p)\n", debugstr_w(pszURL), debugstr_a(pszObjectOid), dwRetrievalFlags, dwTimeout, pObject, ppfnFreeObject, ppvFreeContext, hAsyncRetrieve, pCredentials, pAuxInfo); pObject->cBlob = 0; pObject->rgBlob = NULL; *ppfnFreeObject = CRYPT_FreeBlob; *ppvFreeContext = NULL; components.lpszUrlPath = CryptMemAlloc(MAX_PATH * 2 * sizeof(WCHAR)); components.dwUrlPathLength = 2 * MAX_PATH; ret = InternetCrackUrlW(pszURL, 0, ICU_DECODE, &components); if (ret) { LPWSTR path; if (components.dwUrlPathLength == 2 * MAX_PATH - 1) FIXME("Buffers are too small\n"); /* 3 == lstrlenW(L"c:") + 1 */ path = CryptMemAlloc((components.dwUrlPathLength + 3) * sizeof(WCHAR)); if (path) { HANDLE hFile; /* Try to create the file directly - Wine handles / in pathnames */ lstrcpynW(path, components.lpszUrlPath, components.dwUrlPathLength + 1); hFile = CreateFileW(path, GENERIC_READ, 0, NULL, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL); if (hFile == INVALID_HANDLE_VALUE) { /* Try again on the current drive */ GetCurrentDirectoryW(components.dwUrlPathLength, path); if (path[1] == ':') { lstrcpynW(path + 2, components.lpszUrlPath, components.dwUrlPathLength + 1); hFile = CreateFileW(path, GENERIC_READ, 0, NULL, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL); } if (hFile == INVALID_HANDLE_VALUE) { /* Try again on the Windows drive */ GetWindowsDirectoryW(path, components.dwUrlPathLength); if (path[1] == ':') { lstrcpynW(path + 2, components.lpszUrlPath, components.dwUrlPathLength + 1); hFile = CreateFileW(path, GENERIC_READ, 0, NULL, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL); } } } if (hFile != INVALID_HANDLE_VALUE) { if ((ret = CRYPT_GetObjectFromFile(hFile, pObject))) { if (pAuxInfo && pAuxInfo->cbSize >= offsetof(CRYPT_RETRIEVE_AUX_INFO, pLastSyncTime) + sizeof(PFILETIME) && pAuxInfo->pLastSyncTime) GetFileTime(hFile, NULL, NULL, pAuxInfo->pLastSyncTime); } CloseHandle(hFile); } else ret = FALSE; CryptMemFree(path); } } CryptMemFree(components.lpszUrlPath); return ret; } typedef BOOL (WINAPI *SchemeDllRetrieveEncodedObjectW)(LPCWSTR pwszUrl, LPCSTR pszObjectOid, DWORD dwRetrievalFlags, DWORD dwTimeout, PCRYPT_BLOB_ARRAY pObject, PFN_FREE_ENCODED_OBJECT_FUNC *ppfnFreeObject, void **ppvFreeContext, HCRYPTASYNC hAsyncRetrieve, PCRYPT_CREDENTIALS pCredentials, PCRYPT_RETRIEVE_AUX_INFO pAuxInfo); static BOOL CRYPT_GetRetrieveFunction(LPCWSTR pszURL, SchemeDllRetrieveEncodedObjectW *pFunc, HCRYPTOIDFUNCADDR *phFunc) { URL_COMPONENTSW components = { sizeof(components), 0 }; BOOL ret; TRACE("(%s, %p, %p)\n", debugstr_w(pszURL), pFunc, phFunc); *pFunc = NULL; *phFunc = 0; components.dwSchemeLength = 1; ret = InternetCrackUrlW(pszURL, 0, 0, &components); if (ret) { /* Microsoft always uses CryptInitOIDFunctionSet/ * CryptGetOIDFunctionAddress, but there doesn't seem to be a pressing * reason to do so for builtin schemes. */ switch (components.nScheme) { case INTERNET_SCHEME_FTP: *pFunc = FTP_RetrieveEncodedObjectW; break; case INTERNET_SCHEME_HTTP: *pFunc = HTTP_RetrieveEncodedObjectW; break; case INTERNET_SCHEME_FILE: *pFunc = File_RetrieveEncodedObjectW; break; default: { int len = WideCharToMultiByte(CP_ACP, 0, components.lpszScheme, components.dwSchemeLength, NULL, 0, NULL, NULL); if (len) { LPSTR scheme = CryptMemAlloc(len); if (scheme) { static HCRYPTOIDFUNCSET set = NULL; if (!set) set = CryptInitOIDFunctionSet( SCHEME_OID_RETRIEVE_ENCODED_OBJECTW_FUNC, 0); WideCharToMultiByte(CP_ACP, 0, components.lpszScheme, components.dwSchemeLength, scheme, len, NULL, NULL); ret = CryptGetOIDFunctionAddress(set, X509_ASN_ENCODING, scheme, 0, (void **)pFunc, phFunc); CryptMemFree(scheme); } else { SetLastError(ERROR_OUTOFMEMORY); ret = FALSE; } } else ret = FALSE; } } } TRACE("returning %d\n", ret); return ret; } static BOOL WINAPI CRYPT_CreateBlob(LPCSTR pszObjectOid, DWORD dwRetrievalFlags, const CRYPT_BLOB_ARRAY *pObject, void **ppvContext) { DWORD size, i; CRYPT_BLOB_ARRAY *context; BOOL ret = FALSE; size = sizeof(CRYPT_BLOB_ARRAY) + pObject->cBlob * sizeof(CRYPT_DATA_BLOB); for (i = 0; i < pObject->cBlob; i++) size += pObject->rgBlob[i].cbData; context = CryptMemAlloc(size); if (context) { LPBYTE nextData; context->cBlob = 0; context->rgBlob = (CRYPT_DATA_BLOB *)((LPBYTE)context + sizeof(CRYPT_BLOB_ARRAY)); nextData = (LPBYTE)context->rgBlob + pObject->cBlob * sizeof(CRYPT_DATA_BLOB); for (i = 0; i < pObject->cBlob; i++) { memcpy(nextData, pObject->rgBlob[i].pbData, pObject->rgBlob[i].cbData); context->rgBlob[i].pbData = nextData; context->rgBlob[i].cbData = pObject->rgBlob[i].cbData; nextData += pObject->rgBlob[i].cbData; context->cBlob++; } *ppvContext = context; ret = TRUE; } return ret; } typedef BOOL (WINAPI *AddContextToStore)(HCERTSTORE hCertStore, const void *pContext, DWORD dwAddDisposition, const void **ppStoreContext); static BOOL CRYPT_CreateContext(const CRYPT_BLOB_ARRAY *pObject, DWORD dwExpectedContentTypeFlags, AddContextToStore addFunc, void **ppvContext) { BOOL ret = TRUE; if (!pObject->cBlob) { SetLastError(ERROR_INVALID_DATA); *ppvContext = NULL; ret = FALSE; } else if (pObject->cBlob == 1) { if (!CryptQueryObject(CERT_QUERY_OBJECT_BLOB, &pObject->rgBlob[0], dwExpectedContentTypeFlags, CERT_QUERY_FORMAT_FLAG_BINARY, 0, NULL, NULL, NULL, NULL, NULL, (const void **)ppvContext)) { SetLastError(CRYPT_E_NO_MATCH); ret = FALSE; } } else { HCERTSTORE store = CertOpenStore(CERT_STORE_PROV_MEMORY, 0, 0, CERT_STORE_CREATE_NEW_FLAG, NULL); if (store) { DWORD i; const void *context; for (i = 0; i < pObject->cBlob; i++) { if (CryptQueryObject(CERT_QUERY_OBJECT_BLOB, &pObject->rgBlob[i], dwExpectedContentTypeFlags, CERT_QUERY_FORMAT_FLAG_BINARY, 0, NULL, NULL, NULL, NULL, NULL, &context)) { if (!addFunc(store, context, CERT_STORE_ADD_ALWAYS, NULL)) ret = FALSE; } else { SetLastError(CRYPT_E_NO_MATCH); ret = FALSE; } } } else ret = FALSE; *ppvContext = store; } return ret; } static BOOL WINAPI CRYPT_CreateCert(LPCSTR pszObjectOid, DWORD dwRetrievalFlags, const CRYPT_BLOB_ARRAY *pObject, void **ppvContext) { return CRYPT_CreateContext(pObject, CERT_QUERY_CONTENT_FLAG_CERT, (AddContextToStore)CertAddCertificateContextToStore, ppvContext); } static BOOL WINAPI CRYPT_CreateCRL(LPCSTR pszObjectOid, DWORD dwRetrievalFlags, const CRYPT_BLOB_ARRAY *pObject, void **ppvContext) { return CRYPT_CreateContext(pObject, CERT_QUERY_CONTENT_FLAG_CRL, (AddContextToStore)CertAddCRLContextToStore, ppvContext); } static BOOL WINAPI CRYPT_CreateCTL(LPCSTR pszObjectOid, DWORD dwRetrievalFlags, const CRYPT_BLOB_ARRAY *pObject, void **ppvContext) { return CRYPT_CreateContext(pObject, CERT_QUERY_CONTENT_FLAG_CTL, (AddContextToStore)CertAddCTLContextToStore, ppvContext); } static BOOL WINAPI CRYPT_CreatePKCS7(LPCSTR pszObjectOid, DWORD dwRetrievalFlags, const CRYPT_BLOB_ARRAY *pObject, void **ppvContext) { BOOL ret; if (!pObject->cBlob) { SetLastError(ERROR_INVALID_DATA); *ppvContext = NULL; ret = FALSE; } else if (pObject->cBlob == 1) ret = CryptQueryObject(CERT_QUERY_OBJECT_BLOB, &pObject->rgBlob[0], CERT_QUERY_CONTENT_FLAG_PKCS7_SIGNED | CERT_QUERY_CONTENT_FLAG_PKCS7_UNSIGNED, CERT_QUERY_FORMAT_FLAG_BINARY, 0, NULL, NULL, NULL, ppvContext, NULL, NULL); else { FIXME("multiple messages unimplemented\n"); ret = FALSE; } return ret; } static BOOL WINAPI CRYPT_CreateAny(LPCSTR pszObjectOid, DWORD dwRetrievalFlags, const CRYPT_BLOB_ARRAY *pObject, void **ppvContext) { BOOL ret; if (!pObject->cBlob) { SetLastError(ERROR_INVALID_DATA); *ppvContext = NULL; ret = FALSE; } else { HCERTSTORE store = CertOpenStore(CERT_STORE_PROV_COLLECTION, 0, 0, CERT_STORE_CREATE_NEW_FLAG, NULL); if (store) { HCERTSTORE memStore = CertOpenStore(CERT_STORE_PROV_MEMORY, 0, 0, CERT_STORE_CREATE_NEW_FLAG, NULL); if (memStore) { CertAddStoreToCollection(store, memStore, CERT_PHYSICAL_STORE_ADD_ENABLE_FLAG, 0); CertCloseStore(memStore, 0); } else { CertCloseStore(store, 0); store = NULL; } } if (store) { DWORD i; ret = TRUE; for (i = 0; i < pObject->cBlob; i++) { DWORD contentType, expectedContentTypes = CERT_QUERY_CONTENT_FLAG_PKCS7_SIGNED | CERT_QUERY_CONTENT_FLAG_PKCS7_UNSIGNED | CERT_QUERY_CONTENT_FLAG_CERT | CERT_QUERY_CONTENT_FLAG_CRL | CERT_QUERY_CONTENT_FLAG_CTL; HCERTSTORE contextStore; const void *context; if (CryptQueryObject(CERT_QUERY_OBJECT_BLOB, &pObject->rgBlob[i], expectedContentTypes, CERT_QUERY_FORMAT_FLAG_BINARY, 0, NULL, &contentType, NULL, &contextStore, NULL, &context)) { switch (contentType) { case CERT_QUERY_CONTENT_CERT: if (!CertAddCertificateContextToStore(store, context, CERT_STORE_ADD_ALWAYS, NULL)) ret = FALSE; CertFreeCertificateContext(context); break; case CERT_QUERY_CONTENT_CRL: if (!CertAddCRLContextToStore(store, context, CERT_STORE_ADD_ALWAYS, NULL)) ret = FALSE; CertFreeCRLContext(context); break; case CERT_QUERY_CONTENT_CTL: if (!CertAddCTLContextToStore(store, context, CERT_STORE_ADD_ALWAYS, NULL)) ret = FALSE; CertFreeCTLContext(context); break; default: CertAddStoreToCollection(store, contextStore, 0, 0); } CertCloseStore(contextStore, 0); } else ret = FALSE; } } else ret = FALSE; *ppvContext = store; } return ret; } typedef BOOL (WINAPI *ContextDllCreateObjectContext)(LPCSTR pszObjectOid, DWORD dwRetrievalFlags, const CRYPT_BLOB_ARRAY *pObject, void **ppvContext); static BOOL CRYPT_GetCreateFunction(LPCSTR pszObjectOid, ContextDllCreateObjectContext *pFunc, HCRYPTOIDFUNCADDR *phFunc) { BOOL ret = TRUE; TRACE("(%s, %p, %p)\n", debugstr_a(pszObjectOid), pFunc, phFunc); *pFunc = NULL; *phFunc = 0; if (IS_INTOID(pszObjectOid)) { switch (LOWORD(pszObjectOid)) { case 0: *pFunc = CRYPT_CreateBlob; break; case LOWORD(CONTEXT_OID_CERTIFICATE): *pFunc = CRYPT_CreateCert; break; case LOWORD(CONTEXT_OID_CRL): *pFunc = CRYPT_CreateCRL; break; case LOWORD(CONTEXT_OID_CTL): *pFunc = CRYPT_CreateCTL; break; case LOWORD(CONTEXT_OID_PKCS7): *pFunc = CRYPT_CreatePKCS7; break; case LOWORD(CONTEXT_OID_CAPI2_ANY): *pFunc = CRYPT_CreateAny; break; } } if (!*pFunc) { static HCRYPTOIDFUNCSET set = NULL; if (!set) set = CryptInitOIDFunctionSet( CONTEXT_OID_CREATE_OBJECT_CONTEXT_FUNC, 0); ret = CryptGetOIDFunctionAddress(set, X509_ASN_ENCODING, pszObjectOid, 0, (void **)pFunc, phFunc); } TRACE("returning %d\n", ret); return ret; } typedef BOOL (*get_object_expiration_func)(const void *pvContext, FILETIME *expiration); static BOOL CRYPT_GetExpirationFromCert(const void *pvObject, FILETIME *expiration) { PCCERT_CONTEXT cert = pvObject; *expiration = cert->pCertInfo->NotAfter; return TRUE; } static BOOL CRYPT_GetExpirationFromCRL(const void *pvObject, FILETIME *expiration) { PCCRL_CONTEXT cert = pvObject; *expiration = cert->pCrlInfo->NextUpdate; return TRUE; } static BOOL CRYPT_GetExpirationFromCTL(const void *pvObject, FILETIME *expiration) { PCCTL_CONTEXT cert = pvObject; *expiration = cert->pCtlInfo->NextUpdate; return TRUE; } static BOOL CRYPT_GetExpirationFunction(LPCSTR pszObjectOid, get_object_expiration_func *getExpiration) { BOOL ret; if (IS_INTOID(pszObjectOid)) { switch (LOWORD(pszObjectOid)) { case LOWORD(CONTEXT_OID_CERTIFICATE): *getExpiration = CRYPT_GetExpirationFromCert; ret = TRUE; break; case LOWORD(CONTEXT_OID_CRL): *getExpiration = CRYPT_GetExpirationFromCRL; ret = TRUE; break; case LOWORD(CONTEXT_OID_CTL): *getExpiration = CRYPT_GetExpirationFromCTL; ret = TRUE; break; default: ret = FALSE; } } else ret = FALSE; return ret; } /*********************************************************************** * CryptRetrieveObjectByUrlW (CRYPTNET.@) */ BOOL WINAPI CryptRetrieveObjectByUrlW(LPCWSTR pszURL, LPCSTR pszObjectOid, DWORD dwRetrievalFlags, DWORD dwTimeout, LPVOID *ppvObject, HCRYPTASYNC hAsyncRetrieve, PCRYPT_CREDENTIALS pCredentials, LPVOID pvVerify, PCRYPT_RETRIEVE_AUX_INFO pAuxInfo) { BOOL ret; SchemeDllRetrieveEncodedObjectW retrieve; ContextDllCreateObjectContext create; HCRYPTOIDFUNCADDR hRetrieve = 0, hCreate = 0; TRACE("(%s, %s, %08x, %d, %p, %p, %p, %p, %p)\n", debugstr_w(pszURL), debugstr_a(pszObjectOid), dwRetrievalFlags, dwTimeout, ppvObject, hAsyncRetrieve, pCredentials, pvVerify, pAuxInfo); if (!pszURL) { SetLastError(ERROR_INVALID_PARAMETER); return FALSE; } ret = CRYPT_GetRetrieveFunction(pszURL, &retrieve, &hRetrieve); if (ret) ret = CRYPT_GetCreateFunction(pszObjectOid, &create, &hCreate); if (ret) { CRYPT_BLOB_ARRAY object = { 0, NULL }; PFN_FREE_ENCODED_OBJECT_FUNC freeObject; void *freeContext; ret = retrieve(pszURL, pszObjectOid, dwRetrievalFlags, dwTimeout, &object, &freeObject, &freeContext, hAsyncRetrieve, pCredentials, pAuxInfo); if (ret) { get_object_expiration_func getExpiration; ret = create(pszObjectOid, dwRetrievalFlags, &object, ppvObject); if (ret && !(dwRetrievalFlags & CRYPT_DONT_CACHE_RESULT) && CRYPT_GetExpirationFunction(pszObjectOid, &getExpiration)) { FILETIME expires; if (getExpiration(*ppvObject, &expires)) CRYPT_CacheURL(pszURL, &object, dwRetrievalFlags, expires); } freeObject(pszObjectOid, &object, freeContext); } } if (hCreate) CryptFreeOIDFunctionAddress(hCreate, 0); if (hRetrieve) CryptFreeOIDFunctionAddress(hRetrieve, 0); TRACE("returning %d\n", ret); return ret; } static DWORD verify_cert_revocation_with_crl_online(PCCERT_CONTEXT cert, PCCRL_CONTEXT crl, DWORD index, FILETIME *pTime, PCERT_REVOCATION_STATUS pRevStatus) { DWORD error; PCRL_ENTRY entry = NULL; CertFindCertificateInCRL(cert, crl, 0, NULL, &entry); if (entry) { error = CRYPT_E_REVOKED; pRevStatus->dwIndex = index; } else { /* Since the CRL was retrieved for the cert being checked, then it's * guaranteed to be fresh, and the cert is not revoked. */ error = ERROR_SUCCESS; } return error; } static DWORD verify_cert_revocation_from_dist_points_ext( const CRYPT_DATA_BLOB *value, PCCERT_CONTEXT cert, DWORD index, FILETIME *pTime, DWORD dwFlags, const CERT_REVOCATION_PARA *pRevPara, PCERT_REVOCATION_STATUS pRevStatus) { DWORD error = ERROR_SUCCESS, cbUrlArray; if (CRYPT_GetUrlFromCRLDistPointsExt(value, NULL, &cbUrlArray, NULL, NULL)) { CRYPT_URL_ARRAY *urlArray = CryptMemAlloc(cbUrlArray); if (urlArray) { DWORD j, retrievalFlags = 0, startTime, endTime, timeout; BOOL ret; ret = CRYPT_GetUrlFromCRLDistPointsExt(value, urlArray, &cbUrlArray, NULL, NULL); if (dwFlags & CERT_VERIFY_CACHE_ONLY_BASED_REVOCATION) retrievalFlags |= CRYPT_CACHE_ONLY_RETRIEVAL; if (dwFlags & CERT_VERIFY_REV_ACCUMULATIVE_TIMEOUT_FLAG && pRevPara && pRevPara->cbSize >= offsetof(CERT_REVOCATION_PARA, dwUrlRetrievalTimeout) + sizeof(DWORD)) { startTime = GetTickCount(); endTime = startTime + pRevPara->dwUrlRetrievalTimeout; timeout = pRevPara->dwUrlRetrievalTimeout; } else endTime = timeout = 0; if (!ret) error = GetLastError(); for (j = 0; !error && j < urlArray->cUrl; j++) { PCCRL_CONTEXT crl; ret = CryptRetrieveObjectByUrlW(urlArray->rgwszUrl[j], CONTEXT_OID_CRL, retrievalFlags, timeout, (void **)&crl, NULL, NULL, NULL, NULL); if (ret) { error = verify_cert_revocation_with_crl_online(cert, crl, index, pTime, pRevStatus); if (!error && timeout) { DWORD time = GetTickCount(); if ((int)(endTime - time) <= 0) { error = ERROR_TIMEOUT; pRevStatus->dwIndex = index; } else timeout = endTime - time; } CertFreeCRLContext(crl); } else error = CRYPT_E_REVOCATION_OFFLINE; } CryptMemFree(urlArray); } else { error = ERROR_OUTOFMEMORY; pRevStatus->dwIndex = index; } } else { error = GetLastError(); pRevStatus->dwIndex = index; } return error; } static DWORD verify_cert_revocation_from_aia_ext( const CRYPT_DATA_BLOB *value, PCCERT_CONTEXT cert, DWORD index, FILETIME *pTime, DWORD dwFlags, PCERT_REVOCATION_PARA pRevPara, PCERT_REVOCATION_STATUS pRevStatus) { BOOL ret; DWORD error, size; CERT_AUTHORITY_INFO_ACCESS *aia; ret = CryptDecodeObjectEx(X509_ASN_ENCODING, X509_AUTHORITY_INFO_ACCESS, value->pbData, value->cbData, CRYPT_DECODE_ALLOC_FLAG, NULL, &aia, &size); if (ret) { DWORD i; for (i = 0; i < aia->cAccDescr; i++) if (!strcmp(aia->rgAccDescr[i].pszAccessMethod, szOID_PKIX_OCSP)) { if (aia->rgAccDescr[i].AccessLocation.dwAltNameChoice == CERT_ALT_NAME_URL) FIXME("OCSP URL = %s\n", debugstr_w(aia->rgAccDescr[i].AccessLocation.u.pwszURL)); else FIXME("unsupported AccessLocation type %d\n", aia->rgAccDescr[i].AccessLocation.dwAltNameChoice); } LocalFree(aia); /* FIXME: lie and pretend OCSP validated the cert */ error = ERROR_SUCCESS; } else error = GetLastError(); return error; } static DWORD verify_cert_revocation_with_crl_offline(PCCERT_CONTEXT cert, PCCRL_CONTEXT crl, DWORD index, FILETIME *pTime, PCERT_REVOCATION_STATUS pRevStatus) { DWORD error; LONG valid; valid = CompareFileTime(pTime, &crl->pCrlInfo->ThisUpdate); if (valid <= 0) { /* If this CRL is not older than the time being verified, there's no * way to know whether the certificate was revoked. */ TRACE("CRL not old enough\n"); error = CRYPT_E_REVOCATION_OFFLINE; } else { PCRL_ENTRY entry = NULL; CertFindCertificateInCRL(cert, crl, 0, NULL, &entry); if (entry) { error = CRYPT_E_REVOKED; pRevStatus->dwIndex = index; } else { /* Since the CRL was not retrieved for the cert being checked, * there's no guarantee it's fresh, so the cert *might* be okay, * but it's safer not to guess. */ TRACE("certificate not found\n"); error = CRYPT_E_REVOCATION_OFFLINE; } } return error; } static DWORD verify_cert_revocation(PCCERT_CONTEXT cert, DWORD index, FILETIME *pTime, DWORD dwFlags, PCERT_REVOCATION_PARA pRevPara, PCERT_REVOCATION_STATUS pRevStatus) { DWORD error = ERROR_SUCCESS; PCERT_EXTENSION ext; if ((ext = CertFindExtension(szOID_CRL_DIST_POINTS, cert->pCertInfo->cExtension, cert->pCertInfo->rgExtension))) error = verify_cert_revocation_from_dist_points_ext(&ext->Value, cert, index, pTime, dwFlags, pRevPara, pRevStatus); else if ((ext = CertFindExtension(szOID_AUTHORITY_INFO_ACCESS, cert->pCertInfo->cExtension, cert->pCertInfo->rgExtension))) error = verify_cert_revocation_from_aia_ext(&ext->Value, cert, index, pTime, dwFlags, pRevPara, pRevStatus); else { if (pRevPara && pRevPara->hCrlStore && pRevPara->pIssuerCert) { PCCRL_CONTEXT crl = NULL; BOOL canSignCRLs; /* If the caller told us about the issuer, make sure the issuer * can sign CRLs before looking for one. */ if ((ext = CertFindExtension(szOID_KEY_USAGE, pRevPara->pIssuerCert->pCertInfo->cExtension, pRevPara->pIssuerCert->pCertInfo->rgExtension))) { CRYPT_BIT_BLOB usage; DWORD size = sizeof(usage); if (!CryptDecodeObjectEx(cert->dwCertEncodingType, X509_BITS, ext->Value.pbData, ext->Value.cbData, CRYPT_DECODE_NOCOPY_FLAG, NULL, &usage, &size)) canSignCRLs = FALSE; else if (usage.cbData > 2) { /* The key usage extension only defines 9 bits => no more * than 2 bytes are needed to encode all known usages. */ canSignCRLs = FALSE; } else { BYTE usageBits = usage.pbData[usage.cbData - 1]; canSignCRLs = usageBits & CERT_CRL_SIGN_KEY_USAGE; } } else canSignCRLs = TRUE; if (canSignCRLs) { /* If the caller was helpful enough to tell us where to find a * CRL for the cert, look for one and check it. */ crl = CertFindCRLInStore(pRevPara->hCrlStore, cert->dwCertEncodingType, CRL_FIND_ISSUED_BY_SIGNATURE_FLAG | CRL_FIND_ISSUED_BY_AKI_FLAG, CRL_FIND_ISSUED_BY, pRevPara->pIssuerCert, NULL); } if (crl) { error = verify_cert_revocation_with_crl_offline(cert, crl, index, pTime, pRevStatus); CertFreeCRLContext(crl); } else { TRACE("no CRL found\n"); error = CRYPT_E_NO_REVOCATION_CHECK; pRevStatus->dwIndex = index; } } else { if (!pRevPara) WARN("no CERT_REVOCATION_PARA\n"); else if (!pRevPara->hCrlStore) WARN("no dist points/aia extension and no CRL store\n"); else if (!pRevPara->pIssuerCert) WARN("no dist points/aia extension and no issuer\n"); error = CRYPT_E_NO_REVOCATION_CHECK; pRevStatus->dwIndex = index; } } return error; } typedef struct _CERT_REVOCATION_PARA_NO_EXTRA_FIELDS { DWORD cbSize; PCCERT_CONTEXT pIssuerCert; DWORD cCertStore; HCERTSTORE *rgCertStore; HCERTSTORE hCrlStore; LPFILETIME pftTimeToUse; } CERT_REVOCATION_PARA_NO_EXTRA_FIELDS, *PCERT_REVOCATION_PARA_NO_EXTRA_FIELDS; typedef struct _OLD_CERT_REVOCATION_STATUS { DWORD cbSize; DWORD dwIndex; DWORD dwError; DWORD dwReason; } OLD_CERT_REVOCATION_STATUS, *POLD_CERT_REVOCATION_STATUS; /*********************************************************************** * CertDllVerifyRevocation (CRYPTNET.@) */ BOOL WINAPI CertDllVerifyRevocation(DWORD dwEncodingType, DWORD dwRevType, DWORD cContext, PVOID rgpvContext[], DWORD dwFlags, PCERT_REVOCATION_PARA pRevPara, PCERT_REVOCATION_STATUS pRevStatus) { DWORD error = 0, i; FILETIME now; LPFILETIME pTime = NULL; TRACE("(%08x, %d, %d, %p, %08x, %p, %p)\n", dwEncodingType, dwRevType, cContext, rgpvContext, dwFlags, pRevPara, pRevStatus); if (pRevStatus->cbSize != sizeof(OLD_CERT_REVOCATION_STATUS) && pRevStatus->cbSize != sizeof(CERT_REVOCATION_STATUS)) { SetLastError(E_INVALIDARG); return FALSE; } if (!cContext) { SetLastError(E_INVALIDARG); return FALSE; } if (pRevPara && pRevPara->cbSize >= sizeof(CERT_REVOCATION_PARA_NO_EXTRA_FIELDS)) pTime = pRevPara->pftTimeToUse; if (!pTime) { GetSystemTimeAsFileTime(&now); pTime = &now; } memset(&pRevStatus->dwIndex, 0, pRevStatus->cbSize - sizeof(DWORD)); if (dwRevType != CERT_CONTEXT_REVOCATION_TYPE) error = CRYPT_E_NO_REVOCATION_CHECK; else { for (i = 0; !error && i < cContext; i++) error = verify_cert_revocation(rgpvContext[i], i, pTime, dwFlags, pRevPara, pRevStatus); } if (error) { SetLastError(error); pRevStatus->dwError = error; } TRACE("returning %d (%08x)\n", !error, error); return !error; }