wintrust: Simplify error handling in SoftpubLoadSignature.
[wine] / dlls / wintrust / softpub.c
1 /*
2  * Copyright 2007 Juan Lang
3  *
4  * This library is free software; you can redistribute it and/or
5  * modify it under the terms of the GNU Lesser General Public
6  * License as published by the Free Software Foundation; either
7  * version 2.1 of the License, or (at your option) any later version.
8  *
9  * This library is distributed in the hope that it will be useful,
10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
12  * Lesser General Public License for more details.
13  *
14  * You should have received a copy of the GNU Lesser General Public
15  * License along with this library; if not, write to the Free Software
16  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
17  */
18 #include <stdarg.h>
19
20 #define NONAMELESSUNION
21
22 #include "windef.h"
23 #include "winbase.h"
24 #include "wintrust.h"
25 #include "mssip.h"
26 #include "softpub.h"
27 #include "wine/debug.h"
28
29 WINE_DEFAULT_DEBUG_CHANNEL(wintrust);
30
31 HRESULT WINAPI SoftpubDefCertInit(CRYPT_PROVIDER_DATA *data)
32 {
33     HRESULT ret = S_FALSE;
34
35     TRACE("(%p)\n", data);
36
37     if (data->padwTrustStepErrors &&
38      !data->padwTrustStepErrors[TRUSTERROR_STEP_FINAL_WVTINIT])
39         ret = S_OK;
40     TRACE("returning %08x\n", ret);
41     return ret;
42 }
43
44 HRESULT WINAPI SoftpubInitialize(CRYPT_PROVIDER_DATA *data)
45 {
46     HRESULT ret = S_FALSE;
47
48     TRACE("(%p)\n", data);
49
50     if (data->padwTrustStepErrors &&
51      !data->padwTrustStepErrors[TRUSTERROR_STEP_FINAL_WVTINIT])
52         ret = S_OK;
53     TRACE("returning %08x\n", ret);
54     return ret;
55 }
56
57 HRESULT WINAPI DriverInitializePolicy(CRYPT_PROVIDER_DATA *data)
58 {
59     FIXME("stub\n");
60     return S_OK;
61 }
62
63 HRESULT WINAPI DriverCleanupPolicy(CRYPT_PROVIDER_DATA *data)
64 {
65     FIXME("stub\n");
66     return S_OK;
67 }
68
69 HRESULT WINAPI DriverFinalPolicy(CRYPT_PROVIDER_DATA *data)
70 {
71     FIXME("stub\n");
72     return S_OK;
73 }
74
75 /* Assumes data->pWintrustData->u.pFile exists.  Makes sure a file handle is
76  * open for the file.
77  */
78 static DWORD SOFTPUB_OpenFile(CRYPT_PROVIDER_DATA *data)
79 {
80     DWORD err = ERROR_SUCCESS;
81
82     /* PSDK implies that all values should be initialized to NULL, so callers
83      * typically have hFile as NULL rather than INVALID_HANDLE_VALUE.  Check
84      * for both.
85      */
86     if (!data->pWintrustData->u.pFile->hFile ||
87      data->pWintrustData->u.pFile->hFile == INVALID_HANDLE_VALUE)
88     {
89         data->pWintrustData->u.pFile->hFile =
90             CreateFileW(data->pWintrustData->u.pFile->pcwszFilePath, GENERIC_READ,
91           FILE_SHARE_READ, NULL, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL);
92         if (data->pWintrustData->u.pFile->hFile != INVALID_HANDLE_VALUE)
93             data->fOpenedFile = TRUE;
94         else
95             err = GetLastError();
96     }
97     if (!err)
98         GetFileTime(data->pWintrustData->u.pFile->hFile, &data->sftSystemTime,
99          NULL, NULL);
100     TRACE("returning %d\n", err);
101     return err;
102 }
103
104 /* Assumes data->pWintrustData->u.pFile exists.  Sets data->pPDSip->gSubject to
105  * the file's subject GUID.
106  */
107 static DWORD SOFTPUB_GetFileSubject(CRYPT_PROVIDER_DATA *data)
108 {
109     DWORD err = ERROR_SUCCESS;
110
111     if (!WVT_ISINSTRUCT(WINTRUST_FILE_INFO,
112      data->pWintrustData->u.pFile->cbStruct, pgKnownSubject) ||
113      !data->pWintrustData->u.pFile->pgKnownSubject)
114     {
115         if (!CryptSIPRetrieveSubjectGuid(
116          data->pWintrustData->u.pFile->pcwszFilePath,
117          data->pWintrustData->u.pFile->hFile,
118          &data->u.pPDSip->gSubject))
119             err = GetLastError();
120     }
121     else
122         data->u.pPDSip->gSubject = *data->pWintrustData->u.pFile->pgKnownSubject;
123     TRACE("returning %d\n", err);
124     return err;
125 }
126
127 /* Assumes data->u.pPDSip exists, and its gSubject member set.
128  * Allocates data->u.pPDSip->pSip and loads it, if possible.
129  */
130 static DWORD SOFTPUB_GetSIP(CRYPT_PROVIDER_DATA *data)
131 {
132     DWORD err = ERROR_SUCCESS;
133
134     data->u.pPDSip->pSip = data->psPfns->pfnAlloc(sizeof(SIP_DISPATCH_INFO));
135     if (data->u.pPDSip->pSip)
136     {
137         if (!CryptSIPLoad(&data->u.pPDSip->gSubject, 0, data->u.pPDSip->pSip))
138             err = GetLastError();
139     }
140     else
141         err = ERROR_OUTOFMEMORY;
142     TRACE("returning %d\n", err);
143     return err;
144 }
145
146 /* Assumes data->u.pPDSip has been loaded, and data->u.pPDSip->pSip allocated.
147  * Calls data->u.pPDSip->pSip->pfGet to construct data->hMsg.
148  */
149 static DWORD SOFTPUB_GetMessageFromFile(CRYPT_PROVIDER_DATA *data, HANDLE file,
150  LPCWSTR filePath)
151 {
152     DWORD err = ERROR_SUCCESS;
153     BOOL ret;
154     LPBYTE buf = NULL;
155     DWORD size = 0;
156
157     data->u.pPDSip->psSipSubjectInfo =
158      data->psPfns->pfnAlloc(sizeof(SIP_SUBJECTINFO));
159     if (!data->u.pPDSip->psSipSubjectInfo)
160         return ERROR_OUTOFMEMORY;
161
162     data->u.pPDSip->psSipSubjectInfo->cbSize = sizeof(SIP_SUBJECTINFO);
163     data->u.pPDSip->psSipSubjectInfo->pgSubjectType = &data->u.pPDSip->gSubject;
164     data->u.pPDSip->psSipSubjectInfo->hFile = file;
165     data->u.pPDSip->psSipSubjectInfo->pwsFileName = filePath;
166     data->u.pPDSip->psSipSubjectInfo->hProv = data->hProv;
167     ret = data->u.pPDSip->pSip->pfGet(data->u.pPDSip->psSipSubjectInfo,
168      &data->dwEncoding, 0, &size, 0);
169     if (!ret)
170         return TRUST_E_NOSIGNATURE;
171
172     buf = data->psPfns->pfnAlloc(size);
173     if (!buf)
174         return ERROR_OUTOFMEMORY;
175
176     ret = data->u.pPDSip->pSip->pfGet(data->u.pPDSip->psSipSubjectInfo,
177      &data->dwEncoding, 0, &size, buf);
178     if (ret)
179     {
180         data->hMsg = CryptMsgOpenToDecode(data->dwEncoding, 0, 0, data->hProv,
181          NULL, NULL);
182         if (data->hMsg)
183         {
184             ret = CryptMsgUpdate(data->hMsg, buf, size, TRUE);
185             if (!ret)
186                 err = GetLastError();
187         }
188     }
189     else
190         err = GetLastError();
191
192     data->psPfns->pfnFree(buf);
193     TRACE("returning %d\n", err);
194     return err;
195 }
196
197 static DWORD SOFTPUB_CreateStoreFromMessage(CRYPT_PROVIDER_DATA *data)
198 {
199     DWORD err = ERROR_SUCCESS;
200     HCERTSTORE store;
201
202     store = CertOpenStore(CERT_STORE_PROV_MSG, data->dwEncoding,
203      data->hProv, CERT_STORE_NO_CRYPT_RELEASE_FLAG, data->hMsg);
204     if (store)
205     {
206         if (!data->psPfns->pfnAddStore2Chain(data, store))
207             err = GetLastError();
208         CertCloseStore(store, 0);
209     }
210     else
211         err = GetLastError();
212     TRACE("returning %d\n", err);
213     return err;
214 }
215
216 static DWORD SOFTPUB_DecodeInnerContent(CRYPT_PROVIDER_DATA *data)
217 {
218     BOOL ret;
219     DWORD size, err = ERROR_SUCCESS;
220     LPSTR oid = NULL;
221     LPBYTE buf = NULL;
222
223     ret = CryptMsgGetParam(data->hMsg, CMSG_INNER_CONTENT_TYPE_PARAM, 0, NULL,
224      &size);
225     if (!ret)
226     {
227         err = GetLastError();
228         goto error;
229     }
230     oid = data->psPfns->pfnAlloc(size);
231     if (!oid)
232     {
233         err = ERROR_OUTOFMEMORY;
234         goto error;
235     }
236     ret = CryptMsgGetParam(data->hMsg, CMSG_INNER_CONTENT_TYPE_PARAM, 0, oid,
237      &size);
238     if (!ret)
239     {
240         err = GetLastError();
241         goto error;
242     }
243     ret = CryptMsgGetParam(data->hMsg, CMSG_CONTENT_PARAM, 0, NULL, &size);
244     if (!ret)
245     {
246         err = GetLastError();
247         goto error;
248     }
249     buf = data->psPfns->pfnAlloc(size);
250     if (!buf)
251     {
252         err = ERROR_OUTOFMEMORY;
253         goto error;
254     }
255     ret = CryptMsgGetParam(data->hMsg, CMSG_CONTENT_PARAM, 0, buf, &size);
256     if (!ret)
257     {
258         err = GetLastError();
259         goto error;
260     }
261     ret = CryptDecodeObject(data->dwEncoding, oid, buf, size, 0, NULL, &size);
262     if (!ret)
263     {
264         err = GetLastError();
265         goto error;
266     }
267     data->u.pPDSip->psIndirectData = data->psPfns->pfnAlloc(size);
268     if (!data->u.pPDSip->psIndirectData)
269     {
270         err = ERROR_OUTOFMEMORY;
271         goto error;
272     }
273     ret = CryptDecodeObject(data->dwEncoding, oid, buf, size, 0,
274      data->u.pPDSip->psIndirectData, &size);
275     if (!ret)
276         err = GetLastError();
277
278 error:
279     TRACE("returning %d\n", err);
280     data->psPfns->pfnFree(oid);
281     data->psPfns->pfnFree(buf);
282     return err;
283 }
284
285 static DWORD SOFTPUB_LoadCertMessage(CRYPT_PROVIDER_DATA *data)
286 {
287     DWORD err;
288
289     if (data->pWintrustData->u.pCert &&
290      WVT_IS_CBSTRUCT_GT_MEMBEROFFSET(WINTRUST_CERT_INFO,
291      data->pWintrustData->u.pCert->cbStruct, psCertContext))
292     {
293         if (data->psPfns)
294         {
295             CRYPT_PROVIDER_SGNR signer = { sizeof(signer), { 0 } };
296             DWORD i;
297             BOOL ret;
298
299             /* Add a signer with nothing but the time to verify, so we can
300              * add a cert to it
301              */
302             if (WVT_ISINSTRUCT(WINTRUST_CERT_INFO,
303              data->pWintrustData->u.pCert->cbStruct, psftVerifyAsOf) &&
304              data->pWintrustData->u.pCert->psftVerifyAsOf)
305                 data->sftSystemTime = signer.sftVerifyAsOf;
306             else
307             {
308                 SYSTEMTIME sysTime;
309
310                 GetSystemTime(&sysTime);
311                 SystemTimeToFileTime(&sysTime, &signer.sftVerifyAsOf);
312             }
313             ret = data->psPfns->pfnAddSgnr2Chain(data, FALSE, 0, &signer);
314             if (ret)
315             {
316                 ret = data->psPfns->pfnAddCert2Chain(data, 0, FALSE, 0,
317                  data->pWintrustData->u.pCert->psCertContext);
318                 if (WVT_ISINSTRUCT(WINTRUST_CERT_INFO,
319                  data->pWintrustData->u.pCert->cbStruct, pahStores))
320                         for (i = 0;
321                          ret && i < data->pWintrustData->u.pCert->chStores; i++)
322                             ret = data->psPfns->pfnAddStore2Chain(data,
323                              data->pWintrustData->u.pCert->pahStores[i]);
324             }
325             if (!ret)
326                 err = GetLastError();
327         }
328         else
329         {
330             /* Do nothing!?  See the tests */
331             err = ERROR_SUCCESS;
332         }
333     }
334     else
335         err = ERROR_INVALID_PARAMETER;
336     return err;
337 }
338
339 static DWORD SOFTPUB_LoadFileMessage(CRYPT_PROVIDER_DATA *data)
340 {
341     DWORD err = ERROR_SUCCESS;
342
343     if (!data->pWintrustData->u.pFile)
344     {
345         err = ERROR_INVALID_PARAMETER;
346         goto error;
347     }
348     err = SOFTPUB_OpenFile(data);
349     if (err)
350         goto error;
351     err = SOFTPUB_GetFileSubject(data);
352     if (err)
353         goto error;
354     err = SOFTPUB_GetSIP(data);
355     if (err)
356         goto error;
357     err = SOFTPUB_GetMessageFromFile(data, data->pWintrustData->u.pFile->hFile,
358      data->pWintrustData->u.pFile->pcwszFilePath);
359     if (err)
360         goto error;
361     err = SOFTPUB_CreateStoreFromMessage(data);
362     if (err)
363         goto error;
364     err = SOFTPUB_DecodeInnerContent(data);
365
366 error:
367     if (err && data->fOpenedFile && data->pWintrustData->u.pFile)
368     {
369         /* The caller won't expect the file to be open on failure, so close it.
370          */
371         CloseHandle(data->pWintrustData->u.pFile->hFile);
372         data->pWintrustData->u.pFile->hFile = INVALID_HANDLE_VALUE;
373         data->fOpenedFile = FALSE;
374     }
375     return err;
376 }
377
378 static DWORD SOFTPUB_LoadCatalogMessage(CRYPT_PROVIDER_DATA *data)
379 {
380     DWORD err;
381     HANDLE catalog = INVALID_HANDLE_VALUE;
382
383     if (!data->pWintrustData->u.pCatalog)
384     {
385         SetLastError(ERROR_INVALID_PARAMETER);
386         return FALSE;
387     }
388     catalog = CreateFileW(data->pWintrustData->u.pCatalog->pcwszCatalogFilePath,
389      GENERIC_READ, FILE_SHARE_READ, NULL, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL,
390      NULL);
391     if (catalog == INVALID_HANDLE_VALUE)
392         return GetLastError();
393     if (!CryptSIPRetrieveSubjectGuid(
394      data->pWintrustData->u.pCatalog->pcwszCatalogFilePath, catalog,
395      &data->u.pPDSip->gSubject))
396     {
397         err = GetLastError();
398         goto error;
399     }
400     err = SOFTPUB_GetSIP(data);
401     if (err)
402         goto error;
403     err = SOFTPUB_GetMessageFromFile(data, data->pWintrustData->u.pFile->hFile,
404      data->pWintrustData->u.pFile->pcwszFilePath);
405     if (err)
406         goto error;
407     err = SOFTPUB_CreateStoreFromMessage(data);
408     if (err)
409         goto error;
410     err = SOFTPUB_DecodeInnerContent(data);
411     /* FIXME: this loads the catalog file, but doesn't validate the member. */
412 error:
413     CloseHandle(catalog);
414     return err;
415 }
416
417 HRESULT WINAPI SoftpubLoadMessage(CRYPT_PROVIDER_DATA *data)
418 {
419     DWORD err = ERROR_SUCCESS;
420
421     TRACE("(%p)\n", data);
422
423     if (!data->padwTrustStepErrors)
424         return S_FALSE;
425
426     switch (data->pWintrustData->dwUnionChoice)
427     {
428     case WTD_CHOICE_CERT:
429         err = SOFTPUB_LoadCertMessage(data);
430         break;
431     case WTD_CHOICE_FILE:
432         err = SOFTPUB_LoadFileMessage(data);
433         break;
434     case WTD_CHOICE_CATALOG:
435         err = SOFTPUB_LoadCatalogMessage(data);
436         break;
437     default:
438         FIXME("unimplemented for %d\n", data->pWintrustData->dwUnionChoice);
439         err = ERROR_INVALID_PARAMETER;
440     }
441
442     if (err)
443         data->padwTrustStepErrors[TRUSTERROR_STEP_FINAL_OBJPROV] = err;
444     TRACE("returning %d (%08x)\n", !err ? S_OK : S_FALSE,
445      data->padwTrustStepErrors[TRUSTERROR_STEP_FINAL_OBJPROV]);
446     return !err ? S_OK : S_FALSE;
447 }
448
449 static CMSG_SIGNER_INFO *WINTRUST_GetSigner(CRYPT_PROVIDER_DATA *data,
450  DWORD signerIdx)
451 {
452     BOOL ret;
453     CMSG_SIGNER_INFO *signerInfo = NULL;
454     DWORD size;
455
456     ret = CryptMsgGetParam(data->hMsg, CMSG_SIGNER_INFO_PARAM, signerIdx,
457      NULL, &size);
458     if (ret)
459     {
460         signerInfo = data->psPfns->pfnAlloc(size);
461         if (signerInfo)
462         {
463             ret = CryptMsgGetParam(data->hMsg, CMSG_SIGNER_INFO_PARAM,
464              signerIdx, signerInfo, &size);
465             if (!ret)
466             {
467                 data->psPfns->pfnFree(signerInfo);
468                 signerInfo = NULL;
469             }
470         }
471         else
472             SetLastError(ERROR_OUTOFMEMORY);
473     }
474     return signerInfo;
475 }
476
477 static DWORD WINTRUST_SaveSigner(CRYPT_PROVIDER_DATA *data, DWORD signerIdx)
478 {
479     DWORD err;
480     CMSG_SIGNER_INFO *signerInfo = WINTRUST_GetSigner(data, signerIdx);
481
482     if (signerInfo)
483     {
484         CRYPT_PROVIDER_SGNR sgnr = { sizeof(sgnr), { 0 } };
485
486         sgnr.psSigner = signerInfo;
487         sgnr.sftVerifyAsOf = data->sftSystemTime;
488         if (!data->psPfns->pfnAddSgnr2Chain(data, FALSE, signerIdx, &sgnr))
489             err = GetLastError();
490         else
491             err = ERROR_SUCCESS;
492     }
493     else
494         err = GetLastError();
495     return err;
496 }
497
498 static CERT_INFO *WINTRUST_GetSignerCertInfo(CRYPT_PROVIDER_DATA *data,
499  DWORD signerIdx)
500 {
501     BOOL ret;
502     CERT_INFO *certInfo = NULL;
503     DWORD size;
504
505     ret = CryptMsgGetParam(data->hMsg, CMSG_SIGNER_CERT_INFO_PARAM, signerIdx,
506      NULL, &size);
507     if (ret)
508     {
509         certInfo = data->psPfns->pfnAlloc(size);
510         if (certInfo)
511         {
512             ret = CryptMsgGetParam(data->hMsg, CMSG_SIGNER_CERT_INFO_PARAM,
513              signerIdx, certInfo, &size);
514             if (!ret)
515             {
516                 data->psPfns->pfnFree(certInfo);
517                 certInfo = NULL;
518             }
519         }
520         else
521             SetLastError(ERROR_OUTOFMEMORY);
522     }
523     return certInfo;
524 }
525
526 static DWORD WINTRUST_VerifySigner(CRYPT_PROVIDER_DATA *data, DWORD signerIdx)
527 {
528     DWORD err;
529     CERT_INFO *certInfo = WINTRUST_GetSignerCertInfo(data, signerIdx);
530
531     if (certInfo)
532     {
533         PCCERT_CONTEXT subject = CertGetSubjectCertificateFromStore(
534          data->pahStores[0], data->dwEncoding, certInfo);
535
536         if (subject)
537         {
538             CMSG_CTRL_VERIFY_SIGNATURE_EX_PARA para = { sizeof(para), 0,
539              signerIdx, CMSG_VERIFY_SIGNER_CERT, (LPVOID)subject };
540
541             if (!CryptMsgControl(data->hMsg, 0, CMSG_CTRL_VERIFY_SIGNATURE_EX,
542              &para))
543                 err = TRUST_E_CERT_SIGNATURE;
544             else
545             {
546                 data->psPfns->pfnAddCert2Chain(data, signerIdx, FALSE, 0,
547                  subject);
548                 err = ERROR_SUCCESS;
549             }
550             CertFreeCertificateContext(subject);
551         }
552         else
553             err = TRUST_E_NO_SIGNER_CERT;
554         data->psPfns->pfnFree(certInfo);
555     }
556     else
557         err = GetLastError();
558     return err;
559 }
560
561 HRESULT WINAPI SoftpubLoadSignature(CRYPT_PROVIDER_DATA *data)
562 {
563     DWORD err;
564
565     TRACE("(%p)\n", data);
566
567     if (!data->padwTrustStepErrors)
568         return S_FALSE;
569
570     if (data->hMsg)
571     {
572         DWORD signerCount, size;
573
574         size = sizeof(signerCount);
575         if (CryptMsgGetParam(data->hMsg, CMSG_SIGNER_COUNT_PARAM, 0,
576          &signerCount, &size))
577         {
578             DWORD i;
579
580             err = ERROR_SUCCESS;
581             for (i = 0; !err && i < signerCount; i++)
582             {
583                 if (!(err = WINTRUST_SaveSigner(data, i)))
584                     err = WINTRUST_VerifySigner(data, i);
585             }
586         }
587         else
588             err = TRUST_E_NOSIGNATURE;
589     }
590     else
591         err = ERROR_SUCCESS;
592     if (err)
593         data->padwTrustStepErrors[TRUSTERROR_STEP_FINAL_SIGPROV] = err;
594     return !err ? S_OK : S_FALSE;
595 }
596
597 static DWORD WINTRUST_TrustStatusToConfidence(DWORD errorStatus)
598 {
599     DWORD confidence = 0;
600
601     confidence = 0;
602     if (!(errorStatus & CERT_TRUST_IS_NOT_SIGNATURE_VALID))
603         confidence |= CERT_CONFIDENCE_SIG;
604     if (!(errorStatus & CERT_TRUST_IS_NOT_TIME_VALID))
605         confidence |= CERT_CONFIDENCE_TIME;
606     if (!(errorStatus & CERT_TRUST_IS_NOT_TIME_NESTED))
607         confidence |= CERT_CONFIDENCE_TIMENEST;
608     return confidence;
609 }
610
611 BOOL WINAPI SoftpubCheckCert(CRYPT_PROVIDER_DATA *data, DWORD idxSigner,
612  BOOL fCounterSignerChain, DWORD idxCounterSigner)
613 {
614     BOOL ret;
615
616     TRACE("(%p, %d, %d, %d)\n", data, idxSigner, fCounterSignerChain,
617      idxCounterSigner);
618
619     if (fCounterSignerChain)
620     {
621         FIXME("unimplemented for counter signers\n");
622         ret = FALSE;
623     }
624     else
625     {
626         PCERT_SIMPLE_CHAIN simpleChain =
627          data->pasSigners[idxSigner].pChainContext->rgpChain[0];
628         DWORD i;
629
630         ret = TRUE;
631         for (i = 0; i < simpleChain->cElement; i++)
632         {
633             /* Set confidence */
634             data->pasSigners[idxSigner].pasCertChain[i].dwConfidence =
635              WINTRUST_TrustStatusToConfidence(
636              simpleChain->rgpElement[i]->TrustStatus.dwErrorStatus);
637             /* Set additional flags */
638             if (!(simpleChain->rgpElement[i]->TrustStatus.dwErrorStatus &
639              CERT_TRUST_IS_UNTRUSTED_ROOT))
640                 data->pasSigners[idxSigner].pasCertChain[i].fTrustedRoot = TRUE;
641             if (simpleChain->rgpElement[i]->TrustStatus.dwInfoStatus &
642              CERT_TRUST_IS_SELF_SIGNED)
643                 data->pasSigners[idxSigner].pasCertChain[i].fSelfSigned = TRUE;
644             if (simpleChain->rgpElement[i]->TrustStatus.dwErrorStatus &
645              CERT_TRUST_IS_CYCLIC)
646                 data->pasSigners[idxSigner].pasCertChain[i].fIsCyclic = TRUE;
647         }
648     }
649     return ret;
650 }
651
652 static DWORD WINTRUST_TrustStatusToError(DWORD errorStatus)
653 {
654     DWORD error;
655
656     if (errorStatus & CERT_TRUST_IS_NOT_SIGNATURE_VALID)
657         error = TRUST_E_CERT_SIGNATURE;
658     else if (errorStatus & CERT_TRUST_IS_UNTRUSTED_ROOT)
659         error = CERT_E_UNTRUSTEDROOT;
660     else if (errorStatus & CERT_TRUST_IS_NOT_TIME_VALID)
661         error = CERT_E_EXPIRED;
662     else if (errorStatus & CERT_TRUST_IS_NOT_TIME_NESTED)
663         error = CERT_E_VALIDITYPERIODNESTING;
664     else if (errorStatus & CERT_TRUST_IS_REVOKED)
665         error = CERT_E_REVOKED;
666     else if (errorStatus & CERT_TRUST_IS_OFFLINE_REVOCATION ||
667      errorStatus & CERT_TRUST_REVOCATION_STATUS_UNKNOWN)
668         error = CERT_E_REVOCATION_FAILURE;
669     else if (errorStatus & CERT_TRUST_IS_NOT_VALID_FOR_USAGE)
670         error = CERT_E_WRONG_USAGE;
671     else if (errorStatus & CERT_TRUST_IS_CYCLIC)
672         error = CERT_E_CHAINING;
673     else if (errorStatus & CERT_TRUST_INVALID_EXTENSION)
674         error = CERT_E_CRITICAL;
675     else if (errorStatus & CERT_TRUST_INVALID_POLICY_CONSTRAINTS)
676         error = CERT_E_INVALID_POLICY;
677     else if (errorStatus & CERT_TRUST_INVALID_BASIC_CONSTRAINTS)
678         error = TRUST_E_BASIC_CONSTRAINTS;
679     else if (errorStatus & CERT_TRUST_INVALID_NAME_CONSTRAINTS ||
680      errorStatus & CERT_TRUST_HAS_NOT_SUPPORTED_NAME_CONSTRAINT ||
681      errorStatus & CERT_TRUST_HAS_NOT_DEFINED_NAME_CONSTRAINT ||
682      errorStatus & CERT_TRUST_HAS_NOT_PERMITTED_NAME_CONSTRAINT ||
683      errorStatus & CERT_TRUST_HAS_EXCLUDED_NAME_CONSTRAINT)
684         error = CERT_E_INVALID_NAME;
685     else if (errorStatus & CERT_TRUST_NO_ISSUANCE_CHAIN_POLICY)
686         error = CERT_E_INVALID_POLICY;
687     else if (errorStatus)
688     {
689         FIXME("unknown error status %08x\n", errorStatus);
690         error = TRUST_E_SYSTEM_ERROR;
691     }
692     else
693         error = S_OK;
694     return error;
695 }
696
697 static BOOL WINTRUST_CopyChain(CRYPT_PROVIDER_DATA *data, DWORD signerIdx)
698 {
699     BOOL ret;
700     PCERT_SIMPLE_CHAIN simpleChain =
701      data->pasSigners[signerIdx].pChainContext->rgpChain[0];
702     DWORD i;
703
704     data->pasSigners[signerIdx].pasCertChain[0].dwConfidence =
705      WINTRUST_TrustStatusToConfidence(
706      simpleChain->rgpElement[0]->TrustStatus.dwErrorStatus);
707     data->pasSigners[signerIdx].pasCertChain[0].pChainElement =
708      simpleChain->rgpElement[0];
709     ret = TRUE;
710     for (i = 1; ret && i < simpleChain->cElement; i++)
711     {
712         ret = data->psPfns->pfnAddCert2Chain(data, signerIdx, FALSE, 0,
713          simpleChain->rgpElement[i]->pCertContext);
714         if (ret)
715         {
716             data->pasSigners[signerIdx].pasCertChain[i].pChainElement =
717              simpleChain->rgpElement[i];
718             data->pasSigners[signerIdx].pasCertChain[i].dwConfidence =
719              WINTRUST_TrustStatusToConfidence(
720              simpleChain->rgpElement[i]->TrustStatus.dwErrorStatus);
721         }
722     }
723     data->pasSigners[signerIdx].pasCertChain[simpleChain->cElement - 1].dwError
724      = WINTRUST_TrustStatusToError(
725      simpleChain->rgpElement[simpleChain->cElement - 1]->
726      TrustStatus.dwErrorStatus);
727     return ret;
728 }
729
730 static void WINTRUST_CreateChainPolicyCreateInfo(
731  const CRYPT_PROVIDER_DATA *data, PWTD_GENERIC_CHAIN_POLICY_CREATE_INFO info,
732  PCERT_CHAIN_PARA chainPara)
733 {
734     chainPara->cbSize = sizeof(CERT_CHAIN_PARA);
735     if (data->pRequestUsage)
736         chainPara->RequestedUsage = *data->pRequestUsage;
737     else
738     {
739         chainPara->RequestedUsage.dwType = 0;
740         chainPara->RequestedUsage.Usage.cUsageIdentifier = 0;
741     }
742     info->u.cbSize = sizeof(WTD_GENERIC_CHAIN_POLICY_CREATE_INFO);
743     info->hChainEngine = NULL;
744     info->pChainPara = chainPara;
745     if (data->dwProvFlags & CPD_REVOCATION_CHECK_END_CERT)
746         info->dwFlags = CERT_CHAIN_REVOCATION_CHECK_END_CERT;
747     else if (data->dwProvFlags & CPD_REVOCATION_CHECK_CHAIN)
748         info->dwFlags = CERT_CHAIN_REVOCATION_CHECK_CHAIN;
749     else if (data->dwProvFlags & CPD_REVOCATION_CHECK_CHAIN_EXCLUDE_ROOT)
750         info->dwFlags = CERT_CHAIN_REVOCATION_CHECK_CHAIN_EXCLUDE_ROOT;
751     else
752         info->dwFlags = 0;
753     info->pvReserved = NULL;
754 }
755
756 static BOOL WINTRUST_CreateChainForSigner(CRYPT_PROVIDER_DATA *data,
757  DWORD signer, PWTD_GENERIC_CHAIN_POLICY_CREATE_INFO createInfo,
758  PCERT_CHAIN_PARA chainPara)
759 {
760     BOOL ret = TRUE;
761     HCERTSTORE store = NULL;
762
763     if (data->chStores)
764     {
765         store = CertOpenStore(CERT_STORE_PROV_COLLECTION, 0, 0,
766          CERT_STORE_CREATE_NEW_FLAG, NULL);
767         if (store)
768         {
769             DWORD i;
770
771             for (i = 0; i < data->chStores; i++)
772                 CertAddStoreToCollection(store, data->pahStores[i], 0, 0);
773         }
774     }
775     /* Expect the end certificate for each signer to be the only cert in the
776      * chain:
777      */
778     if (data->pasSigners[signer].csCertChain)
779     {
780         /* Create a certificate chain for each signer */
781         ret = CertGetCertificateChain(createInfo->hChainEngine,
782          data->pasSigners[signer].pasCertChain[0].pCert,
783          &data->pasSigners[signer].sftVerifyAsOf, store,
784          chainPara, createInfo->dwFlags, createInfo->pvReserved,
785          &data->pasSigners[signer].pChainContext);
786         if (ret)
787         {
788             if (data->pasSigners[signer].pChainContext->cChain != 1)
789             {
790                 FIXME("unimplemented for more than 1 simple chain\n");
791                 ret = FALSE;
792             }
793             else
794             {
795                 if ((ret = WINTRUST_CopyChain(data, signer)))
796                 {
797                     if (data->psPfns->pfnCertCheckPolicy)
798                         ret = data->psPfns->pfnCertCheckPolicy(data, signer,
799                          FALSE, 0);
800                     else
801                         TRACE("no cert check policy, skipping policy check\n");
802                 }
803             }
804         }
805     }
806     CertCloseStore(store, 0);
807     return ret;
808 }
809
810 HRESULT WINAPI WintrustCertificateTrust(CRYPT_PROVIDER_DATA *data)
811 {
812     BOOL ret;
813
814     TRACE("(%p)\n", data);
815
816     if (!data->csSigners)
817     {
818         ret = FALSE;
819         SetLastError(TRUST_E_NOSIGNATURE);
820     }
821     else
822     {
823         DWORD i;
824         WTD_GENERIC_CHAIN_POLICY_CREATE_INFO createInfo;
825         CERT_CHAIN_PARA chainPara;
826
827         WINTRUST_CreateChainPolicyCreateInfo(data, &createInfo, &chainPara);
828         ret = TRUE;
829         for (i = 0; i < data->csSigners; i++)
830             ret = WINTRUST_CreateChainForSigner(data, i, &createInfo,
831              &chainPara);
832     }
833     if (!ret)
834         data->padwTrustStepErrors[TRUSTERROR_STEP_FINAL_CERTPROV] =
835          GetLastError();
836     TRACE("returning %d (%08x)\n", ret ? S_OK : S_FALSE,
837      data->padwTrustStepErrors[TRUSTERROR_STEP_FINAL_CERTPROV]);
838     return ret ? S_OK : S_FALSE;
839 }
840
841 HRESULT WINAPI GenericChainCertificateTrust(CRYPT_PROVIDER_DATA *data)
842 {
843     BOOL ret;
844     WTD_GENERIC_CHAIN_POLICY_DATA *policyData =
845      data->pWintrustData->pPolicyCallbackData;
846
847     TRACE("(%p)\n", data);
848
849     if (policyData && policyData->u.cbSize !=
850      sizeof(WTD_GENERIC_CHAIN_POLICY_CREATE_INFO))
851     {
852         SetLastError(ERROR_INVALID_PARAMETER);
853         ret = FALSE;
854         goto end;
855     }
856     if (!data->csSigners)
857     {
858         ret = FALSE;
859         SetLastError(TRUST_E_NOSIGNATURE);
860     }
861     else
862     {
863         DWORD i;
864         WTD_GENERIC_CHAIN_POLICY_CREATE_INFO createInfo, *pCreateInfo;
865         CERT_CHAIN_PARA chainPara, *pChainPara;
866
867         if (policyData)
868         {
869             pCreateInfo = policyData->pSignerChainInfo;
870             pChainPara = pCreateInfo->pChainPara;
871         }
872         else
873         {
874             WINTRUST_CreateChainPolicyCreateInfo(data, &createInfo, &chainPara);
875             pChainPara = &chainPara;
876             pCreateInfo = &createInfo;
877         }
878         ret = TRUE;
879         for (i = 0; i < data->csSigners; i++)
880             ret = WINTRUST_CreateChainForSigner(data, i, pCreateInfo,
881              pChainPara);
882     }
883
884 end:
885     if (!ret)
886         data->padwTrustStepErrors[TRUSTERROR_STEP_FINAL_CERTPROV] =
887          GetLastError();
888     TRACE("returning %d (%08x)\n", ret ? S_OK : S_FALSE,
889      data->padwTrustStepErrors[TRUSTERROR_STEP_FINAL_CERTPROV]);
890     return ret ? S_OK : S_FALSE;
891 }
892
893 HRESULT WINAPI SoftpubAuthenticode(CRYPT_PROVIDER_DATA *data)
894 {
895     BOOL ret;
896     CERT_CHAIN_POLICY_STATUS policyStatus = { sizeof(policyStatus), 0 };
897
898     TRACE("(%p)\n", data);
899
900     if (data->pWintrustData->dwUIChoice != WTD_UI_NONE)
901         FIXME("unimplemented for UI choice %d\n",
902          data->pWintrustData->dwUIChoice);
903     if (!data->csSigners)
904     {
905         ret = FALSE;
906         policyStatus.dwError = TRUST_E_NOSIGNATURE;
907     }
908     else
909     {
910         DWORD i;
911
912         ret = TRUE;
913         for (i = 0; ret && i < data->csSigners; i++)
914         {
915             BYTE hash[20];
916             DWORD size = sizeof(hash);
917
918             /* First make sure cert isn't disallowed */
919             if ((ret = CertGetCertificateContextProperty(
920              data->pasSigners[i].pasCertChain[0].pCert,
921              CERT_SIGNATURE_HASH_PROP_ID, hash, &size)))
922             {
923                 static const WCHAR disallowedW[] =
924                  { 'D','i','s','a','l','l','o','w','e','d',0 };
925                 HCERTSTORE disallowed = CertOpenStore(CERT_STORE_PROV_SYSTEM_W,
926                  X509_ASN_ENCODING, 0, CERT_SYSTEM_STORE_CURRENT_USER,
927                  disallowedW);
928
929                 if (disallowed)
930                 {
931                     PCCERT_CONTEXT found = CertFindCertificateInStore(
932                      disallowed, X509_ASN_ENCODING, 0, CERT_FIND_SIGNATURE_HASH,
933                      hash, NULL);
934
935                     if (found)
936                     {
937                         /* Disallowed!  Can't verify it. */
938                         policyStatus.dwError = TRUST_E_SUBJECT_NOT_TRUSTED;
939                         ret = FALSE;
940                         CertFreeCertificateContext(found);
941                     }
942                     CertCloseStore(disallowed, 0);
943                 }
944             }
945             if (ret)
946             {
947                 CERT_CHAIN_POLICY_PARA policyPara = { sizeof(policyPara), 0 };
948
949                 if (data->dwRegPolicySettings & WTPF_TRUSTTEST)
950                     policyPara.dwFlags |= CERT_CHAIN_POLICY_TRUST_TESTROOT_FLAG;
951                 if (data->dwRegPolicySettings & WTPF_TESTCANBEVALID)
952                     policyPara.dwFlags |= CERT_CHAIN_POLICY_ALLOW_TESTROOT_FLAG;
953                 if (data->dwRegPolicySettings & WTPF_IGNOREEXPIRATION)
954                     policyPara.dwFlags |=
955                      CERT_CHAIN_POLICY_IGNORE_NOT_TIME_VALID_FLAG |
956                      CERT_CHAIN_POLICY_IGNORE_CTL_NOT_TIME_VALID_FLAG |
957                      CERT_CHAIN_POLICY_IGNORE_NOT_TIME_NESTED_FLAG;
958                 if (data->dwRegPolicySettings & WTPF_IGNOREREVOKATION)
959                     policyPara.dwFlags |=
960                      CERT_CHAIN_POLICY_IGNORE_END_REV_UNKNOWN_FLAG |
961                      CERT_CHAIN_POLICY_IGNORE_CTL_SIGNER_REV_UNKNOWN_FLAG |
962                      CERT_CHAIN_POLICY_IGNORE_CA_REV_UNKNOWN_FLAG |
963                      CERT_CHAIN_POLICY_IGNORE_ROOT_REV_UNKNOWN_FLAG;
964                 CertVerifyCertificateChainPolicy(CERT_CHAIN_POLICY_AUTHENTICODE,
965                  data->pasSigners[i].pChainContext, &policyPara, &policyStatus);
966                 if (policyStatus.dwError != NO_ERROR)
967                     ret = FALSE;
968             }
969         }
970     }
971     if (!ret)
972         data->padwTrustStepErrors[TRUSTERROR_STEP_FINAL_POLICYPROV] =
973          policyStatus.dwError;
974     TRACE("returning %d (%08x)\n", ret ? S_OK : S_FALSE,
975      data->padwTrustStepErrors[TRUSTERROR_STEP_FINAL_POLICYPROV]);
976     return ret ? S_OK : S_FALSE;
977 }
978
979 static HRESULT WINAPI WINTRUST_DefaultPolicy(CRYPT_PROVIDER_DATA *pProvData,
980  DWORD dwStepError, DWORD dwRegPolicySettings, DWORD cSigner,
981  PWTD_GENERIC_CHAIN_POLICY_SIGNER_INFO rgpSigner, void *pvPolicyArg)
982 {
983     DWORD i;
984     CERT_CHAIN_POLICY_STATUS policyStatus = { sizeof(policyStatus), 0 };
985
986     for (i = 0; !policyStatus.dwError && i < cSigner; i++)
987     {
988         CERT_CHAIN_POLICY_PARA policyPara = { sizeof(policyPara), 0 };
989
990         if (dwRegPolicySettings & WTPF_IGNOREEXPIRATION)
991             policyPara.dwFlags |=
992              CERT_CHAIN_POLICY_IGNORE_NOT_TIME_VALID_FLAG |
993              CERT_CHAIN_POLICY_IGNORE_CTL_NOT_TIME_VALID_FLAG |
994              CERT_CHAIN_POLICY_IGNORE_NOT_TIME_NESTED_FLAG;
995         if (dwRegPolicySettings & WTPF_IGNOREREVOKATION)
996             policyPara.dwFlags |=
997              CERT_CHAIN_POLICY_IGNORE_END_REV_UNKNOWN_FLAG |
998              CERT_CHAIN_POLICY_IGNORE_CTL_SIGNER_REV_UNKNOWN_FLAG |
999              CERT_CHAIN_POLICY_IGNORE_CA_REV_UNKNOWN_FLAG |
1000              CERT_CHAIN_POLICY_IGNORE_ROOT_REV_UNKNOWN_FLAG;
1001         CertVerifyCertificateChainPolicy(CERT_CHAIN_POLICY_BASE,
1002          rgpSigner[i].pChainContext, &policyPara, &policyStatus);
1003     }
1004     return policyStatus.dwError;
1005 }
1006
1007 HRESULT WINAPI GenericChainFinalProv(CRYPT_PROVIDER_DATA *data)
1008 {
1009     HRESULT err = NO_ERROR; /* not a typo, MS confused the types */
1010     WTD_GENERIC_CHAIN_POLICY_DATA *policyData =
1011      data->pWintrustData->pPolicyCallbackData;
1012
1013     TRACE("(%p)\n", data);
1014
1015     if (data->pWintrustData->dwUIChoice != WTD_UI_NONE)
1016         FIXME("unimplemented for UI choice %d\n",
1017          data->pWintrustData->dwUIChoice);
1018     if (!data->csSigners)
1019         err = TRUST_E_NOSIGNATURE;
1020     else
1021     {
1022         PFN_WTD_GENERIC_CHAIN_POLICY_CALLBACK policyCallback;
1023         void *policyArg;
1024         WTD_GENERIC_CHAIN_POLICY_SIGNER_INFO *signers = NULL;
1025
1026         if (policyData)
1027         {
1028             policyCallback = policyData->pfnPolicyCallback;
1029             policyArg = policyData->pvPolicyArg;
1030         }
1031         else
1032         {
1033             policyCallback = WINTRUST_DefaultPolicy;
1034             policyArg = NULL;
1035         }
1036         if (data->csSigners)
1037         {
1038             DWORD i;
1039
1040             signers = data->psPfns->pfnAlloc(
1041              data->csSigners * sizeof(WTD_GENERIC_CHAIN_POLICY_SIGNER_INFO));
1042             if (signers)
1043             {
1044                 for (i = 0; i < data->csSigners; i++)
1045                 {
1046                     signers[i].u.cbSize =
1047                      sizeof(WTD_GENERIC_CHAIN_POLICY_SIGNER_INFO);
1048                     signers[i].pChainContext =
1049                      data->pasSigners[i].pChainContext;
1050                     signers[i].dwSignerType = data->pasSigners[i].dwSignerType;
1051                     signers[i].pMsgSignerInfo = data->pasSigners[i].psSigner;
1052                     signers[i].dwError = data->pasSigners[i].dwError;
1053                     if (data->pasSigners[i].csCounterSigners)
1054                         FIXME("unimplemented for counter signers\n");
1055                     signers[i].cCounterSigner = 0;
1056                     signers[i].rgpCounterSigner = NULL;
1057                 }
1058             }
1059             else
1060                 err = ERROR_OUTOFMEMORY;
1061         }
1062         if (err == NO_ERROR)
1063             err = policyCallback(data, TRUSTERROR_STEP_FINAL_POLICYPROV,
1064              data->dwRegPolicySettings, data->csSigners, signers, policyArg);
1065         data->psPfns->pfnFree(signers);
1066     }
1067     if (err != NO_ERROR)
1068         data->padwTrustStepErrors[TRUSTERROR_STEP_FINAL_POLICYPROV] = err;
1069     TRACE("returning %d (%08x)\n", err == NO_ERROR ? S_OK : S_FALSE,
1070      data->padwTrustStepErrors[TRUSTERROR_STEP_FINAL_POLICYPROV]);
1071     return err == NO_ERROR ? S_OK : S_FALSE;
1072 }
1073
1074 HRESULT WINAPI SoftpubCleanup(CRYPT_PROVIDER_DATA *data)
1075 {
1076     DWORD i, j;
1077
1078     for (i = 0; i < data->csSigners; i++)
1079     {
1080         for (j = 0; j < data->pasSigners[i].csCertChain; j++)
1081             CertFreeCertificateContext(data->pasSigners[i].pasCertChain[j].pCert);
1082         data->psPfns->pfnFree(data->pasSigners[i].pasCertChain);
1083         data->psPfns->pfnFree(data->pasSigners[i].psSigner);
1084         CertFreeCertificateChain(data->pasSigners[i].pChainContext);
1085     }
1086     data->psPfns->pfnFree(data->pasSigners);
1087
1088     for (i = 0; i < data->chStores; i++)
1089         CertCloseStore(data->pahStores[i], 0);
1090     data->psPfns->pfnFree(data->pahStores);
1091
1092     if (data->u.pPDSip)
1093     {
1094         data->psPfns->pfnFree(data->u.pPDSip->pSip);
1095         data->psPfns->pfnFree(data->u.pPDSip->pCATSip);
1096         data->psPfns->pfnFree(data->u.pPDSip->psSipSubjectInfo);
1097         data->psPfns->pfnFree(data->u.pPDSip->psSipCATSubjectInfo);
1098         data->psPfns->pfnFree(data->u.pPDSip->psIndirectData);
1099     }
1100
1101     CryptMsgClose(data->hMsg);
1102
1103     if (data->fOpenedFile &&
1104      data->pWintrustData->dwUnionChoice == WTD_CHOICE_FILE)
1105         CloseHandle(data->pWintrustData->u.pFile->hFile);
1106
1107     return S_OK;
1108 }
1109
1110 HRESULT WINAPI HTTPSCertificateTrust(CRYPT_PROVIDER_DATA *data)
1111 {
1112     FIXME("(%p)\n", data);
1113     return S_OK;
1114 }
1115
1116 HRESULT WINAPI HTTPSFinalProv(CRYPT_PROVIDER_DATA *data)
1117 {
1118     FIXME("(%p)\n", data);
1119     return S_OK;
1120 }