wintrust: Return error directly from WINTRUST_VerifySigner.
[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 BOOL WINTRUST_SaveSigner(CRYPT_PROVIDER_DATA *data, DWORD signerIdx)
478 {
479     BOOL ret;
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         ret = data->psPfns->pfnAddSgnr2Chain(data, FALSE, signerIdx, &sgnr);
489     }
490     else
491         ret = FALSE;
492     return ret;
493 }
494
495 static CERT_INFO *WINTRUST_GetSignerCertInfo(CRYPT_PROVIDER_DATA *data,
496  DWORD signerIdx)
497 {
498     BOOL ret;
499     CERT_INFO *certInfo = NULL;
500     DWORD size;
501
502     ret = CryptMsgGetParam(data->hMsg, CMSG_SIGNER_CERT_INFO_PARAM, signerIdx,
503      NULL, &size);
504     if (ret)
505     {
506         certInfo = data->psPfns->pfnAlloc(size);
507         if (certInfo)
508         {
509             ret = CryptMsgGetParam(data->hMsg, CMSG_SIGNER_CERT_INFO_PARAM,
510              signerIdx, certInfo, &size);
511             if (!ret)
512             {
513                 data->psPfns->pfnFree(certInfo);
514                 certInfo = NULL;
515             }
516         }
517         else
518             SetLastError(ERROR_OUTOFMEMORY);
519     }
520     return certInfo;
521 }
522
523 static DWORD WINTRUST_VerifySigner(CRYPT_PROVIDER_DATA *data, DWORD signerIdx)
524 {
525     DWORD err;
526     CERT_INFO *certInfo = WINTRUST_GetSignerCertInfo(data, signerIdx);
527
528     if (certInfo)
529     {
530         PCCERT_CONTEXT subject = CertGetSubjectCertificateFromStore(
531          data->pahStores[0], data->dwEncoding, certInfo);
532
533         if (subject)
534         {
535             CMSG_CTRL_VERIFY_SIGNATURE_EX_PARA para = { sizeof(para), 0,
536              signerIdx, CMSG_VERIFY_SIGNER_CERT, (LPVOID)subject };
537
538             if (!CryptMsgControl(data->hMsg, 0, CMSG_CTRL_VERIFY_SIGNATURE_EX,
539              &para))
540                 err = TRUST_E_CERT_SIGNATURE;
541             else
542             {
543                 data->psPfns->pfnAddCert2Chain(data, signerIdx, FALSE, 0,
544                  subject);
545                 err = ERROR_SUCCESS;
546             }
547             CertFreeCertificateContext(subject);
548         }
549         else
550             err = TRUST_E_NO_SIGNER_CERT;
551         data->psPfns->pfnFree(certInfo);
552     }
553     else
554         err = GetLastError();
555     return err;
556 }
557
558 HRESULT WINAPI SoftpubLoadSignature(CRYPT_PROVIDER_DATA *data)
559 {
560     BOOL ret;
561
562     TRACE("(%p)\n", data);
563
564     if (!data->padwTrustStepErrors)
565         return S_FALSE;
566
567     if (data->hMsg)
568     {
569         DWORD signerCount, size;
570
571         size = sizeof(signerCount);
572         ret = CryptMsgGetParam(data->hMsg, CMSG_SIGNER_COUNT_PARAM, 0,
573          &signerCount, &size);
574         if (ret)
575         {
576             DWORD i;
577
578             for (i = 0; ret && i < signerCount; i++)
579             {
580                 if ((ret = WINTRUST_SaveSigner(data, i)))
581                 {
582                     DWORD err;
583
584                     err = WINTRUST_VerifySigner(data, i);
585                     if (err)
586                     {
587                         SetLastError(err);
588                         ret = FALSE;
589                     }
590                 }
591             }
592         }
593         else
594             SetLastError(TRUST_E_NOSIGNATURE);
595     }
596     else
597         ret = TRUE;
598     if (!ret)
599         data->padwTrustStepErrors[TRUSTERROR_STEP_FINAL_SIGPROV] =
600          GetLastError();
601     return ret ? S_OK : S_FALSE;
602 }
603
604 static DWORD WINTRUST_TrustStatusToConfidence(DWORD errorStatus)
605 {
606     DWORD confidence = 0;
607
608     confidence = 0;
609     if (!(errorStatus & CERT_TRUST_IS_NOT_SIGNATURE_VALID))
610         confidence |= CERT_CONFIDENCE_SIG;
611     if (!(errorStatus & CERT_TRUST_IS_NOT_TIME_VALID))
612         confidence |= CERT_CONFIDENCE_TIME;
613     if (!(errorStatus & CERT_TRUST_IS_NOT_TIME_NESTED))
614         confidence |= CERT_CONFIDENCE_TIMENEST;
615     return confidence;
616 }
617
618 BOOL WINAPI SoftpubCheckCert(CRYPT_PROVIDER_DATA *data, DWORD idxSigner,
619  BOOL fCounterSignerChain, DWORD idxCounterSigner)
620 {
621     BOOL ret;
622
623     TRACE("(%p, %d, %d, %d)\n", data, idxSigner, fCounterSignerChain,
624      idxCounterSigner);
625
626     if (fCounterSignerChain)
627     {
628         FIXME("unimplemented for counter signers\n");
629         ret = FALSE;
630     }
631     else
632     {
633         PCERT_SIMPLE_CHAIN simpleChain =
634          data->pasSigners[idxSigner].pChainContext->rgpChain[0];
635         DWORD i;
636
637         ret = TRUE;
638         for (i = 0; i < simpleChain->cElement; i++)
639         {
640             /* Set confidence */
641             data->pasSigners[idxSigner].pasCertChain[i].dwConfidence =
642              WINTRUST_TrustStatusToConfidence(
643              simpleChain->rgpElement[i]->TrustStatus.dwErrorStatus);
644             /* Set additional flags */
645             if (!(simpleChain->rgpElement[i]->TrustStatus.dwErrorStatus &
646              CERT_TRUST_IS_UNTRUSTED_ROOT))
647                 data->pasSigners[idxSigner].pasCertChain[i].fTrustedRoot = TRUE;
648             if (simpleChain->rgpElement[i]->TrustStatus.dwInfoStatus &
649              CERT_TRUST_IS_SELF_SIGNED)
650                 data->pasSigners[idxSigner].pasCertChain[i].fSelfSigned = TRUE;
651             if (simpleChain->rgpElement[i]->TrustStatus.dwErrorStatus &
652              CERT_TRUST_IS_CYCLIC)
653                 data->pasSigners[idxSigner].pasCertChain[i].fIsCyclic = TRUE;
654         }
655     }
656     return ret;
657 }
658
659 static DWORD WINTRUST_TrustStatusToError(DWORD errorStatus)
660 {
661     DWORD error;
662
663     if (errorStatus & CERT_TRUST_IS_NOT_SIGNATURE_VALID)
664         error = TRUST_E_CERT_SIGNATURE;
665     else if (errorStatus & CERT_TRUST_IS_UNTRUSTED_ROOT)
666         error = CERT_E_UNTRUSTEDROOT;
667     else if (errorStatus & CERT_TRUST_IS_NOT_TIME_VALID)
668         error = CERT_E_EXPIRED;
669     else if (errorStatus & CERT_TRUST_IS_NOT_TIME_NESTED)
670         error = CERT_E_VALIDITYPERIODNESTING;
671     else if (errorStatus & CERT_TRUST_IS_REVOKED)
672         error = CERT_E_REVOKED;
673     else if (errorStatus & CERT_TRUST_IS_OFFLINE_REVOCATION ||
674      errorStatus & CERT_TRUST_REVOCATION_STATUS_UNKNOWN)
675         error = CERT_E_REVOCATION_FAILURE;
676     else if (errorStatus & CERT_TRUST_IS_NOT_VALID_FOR_USAGE)
677         error = CERT_E_WRONG_USAGE;
678     else if (errorStatus & CERT_TRUST_IS_CYCLIC)
679         error = CERT_E_CHAINING;
680     else if (errorStatus & CERT_TRUST_INVALID_EXTENSION)
681         error = CERT_E_CRITICAL;
682     else if (errorStatus & CERT_TRUST_INVALID_POLICY_CONSTRAINTS)
683         error = CERT_E_INVALID_POLICY;
684     else if (errorStatus & CERT_TRUST_INVALID_BASIC_CONSTRAINTS)
685         error = TRUST_E_BASIC_CONSTRAINTS;
686     else if (errorStatus & CERT_TRUST_INVALID_NAME_CONSTRAINTS ||
687      errorStatus & CERT_TRUST_HAS_NOT_SUPPORTED_NAME_CONSTRAINT ||
688      errorStatus & CERT_TRUST_HAS_NOT_DEFINED_NAME_CONSTRAINT ||
689      errorStatus & CERT_TRUST_HAS_NOT_PERMITTED_NAME_CONSTRAINT ||
690      errorStatus & CERT_TRUST_HAS_EXCLUDED_NAME_CONSTRAINT)
691         error = CERT_E_INVALID_NAME;
692     else if (errorStatus & CERT_TRUST_NO_ISSUANCE_CHAIN_POLICY)
693         error = CERT_E_INVALID_POLICY;
694     else if (errorStatus)
695     {
696         FIXME("unknown error status %08x\n", errorStatus);
697         error = TRUST_E_SYSTEM_ERROR;
698     }
699     else
700         error = S_OK;
701     return error;
702 }
703
704 static BOOL WINTRUST_CopyChain(CRYPT_PROVIDER_DATA *data, DWORD signerIdx)
705 {
706     BOOL ret;
707     PCERT_SIMPLE_CHAIN simpleChain =
708      data->pasSigners[signerIdx].pChainContext->rgpChain[0];
709     DWORD i;
710
711     data->pasSigners[signerIdx].pasCertChain[0].dwConfidence =
712      WINTRUST_TrustStatusToConfidence(
713      simpleChain->rgpElement[0]->TrustStatus.dwErrorStatus);
714     data->pasSigners[signerIdx].pasCertChain[0].pChainElement =
715      simpleChain->rgpElement[0];
716     ret = TRUE;
717     for (i = 1; ret && i < simpleChain->cElement; i++)
718     {
719         ret = data->psPfns->pfnAddCert2Chain(data, signerIdx, FALSE, 0,
720          simpleChain->rgpElement[i]->pCertContext);
721         if (ret)
722         {
723             data->pasSigners[signerIdx].pasCertChain[i].pChainElement =
724              simpleChain->rgpElement[i];
725             data->pasSigners[signerIdx].pasCertChain[i].dwConfidence =
726              WINTRUST_TrustStatusToConfidence(
727              simpleChain->rgpElement[i]->TrustStatus.dwErrorStatus);
728         }
729     }
730     data->pasSigners[signerIdx].pasCertChain[simpleChain->cElement - 1].dwError
731      = WINTRUST_TrustStatusToError(
732      simpleChain->rgpElement[simpleChain->cElement - 1]->
733      TrustStatus.dwErrorStatus);
734     return ret;
735 }
736
737 static void WINTRUST_CreateChainPolicyCreateInfo(
738  const CRYPT_PROVIDER_DATA *data, PWTD_GENERIC_CHAIN_POLICY_CREATE_INFO info,
739  PCERT_CHAIN_PARA chainPara)
740 {
741     chainPara->cbSize = sizeof(CERT_CHAIN_PARA);
742     if (data->pRequestUsage)
743         chainPara->RequestedUsage = *data->pRequestUsage;
744     else
745     {
746         chainPara->RequestedUsage.dwType = 0;
747         chainPara->RequestedUsage.Usage.cUsageIdentifier = 0;
748     }
749     info->u.cbSize = sizeof(WTD_GENERIC_CHAIN_POLICY_CREATE_INFO);
750     info->hChainEngine = NULL;
751     info->pChainPara = chainPara;
752     if (data->dwProvFlags & CPD_REVOCATION_CHECK_END_CERT)
753         info->dwFlags = CERT_CHAIN_REVOCATION_CHECK_END_CERT;
754     else if (data->dwProvFlags & CPD_REVOCATION_CHECK_CHAIN)
755         info->dwFlags = CERT_CHAIN_REVOCATION_CHECK_CHAIN;
756     else if (data->dwProvFlags & CPD_REVOCATION_CHECK_CHAIN_EXCLUDE_ROOT)
757         info->dwFlags = CERT_CHAIN_REVOCATION_CHECK_CHAIN_EXCLUDE_ROOT;
758     else
759         info->dwFlags = 0;
760     info->pvReserved = NULL;
761 }
762
763 static BOOL WINTRUST_CreateChainForSigner(CRYPT_PROVIDER_DATA *data,
764  DWORD signer, PWTD_GENERIC_CHAIN_POLICY_CREATE_INFO createInfo,
765  PCERT_CHAIN_PARA chainPara)
766 {
767     BOOL ret = TRUE;
768     HCERTSTORE store = NULL;
769
770     if (data->chStores)
771     {
772         store = CertOpenStore(CERT_STORE_PROV_COLLECTION, 0, 0,
773          CERT_STORE_CREATE_NEW_FLAG, NULL);
774         if (store)
775         {
776             DWORD i;
777
778             for (i = 0; i < data->chStores; i++)
779                 CertAddStoreToCollection(store, data->pahStores[i], 0, 0);
780         }
781     }
782     /* Expect the end certificate for each signer to be the only cert in the
783      * chain:
784      */
785     if (data->pasSigners[signer].csCertChain)
786     {
787         /* Create a certificate chain for each signer */
788         ret = CertGetCertificateChain(createInfo->hChainEngine,
789          data->pasSigners[signer].pasCertChain[0].pCert,
790          &data->pasSigners[signer].sftVerifyAsOf, store,
791          chainPara, createInfo->dwFlags, createInfo->pvReserved,
792          &data->pasSigners[signer].pChainContext);
793         if (ret)
794         {
795             if (data->pasSigners[signer].pChainContext->cChain != 1)
796             {
797                 FIXME("unimplemented for more than 1 simple chain\n");
798                 ret = FALSE;
799             }
800             else
801             {
802                 if ((ret = WINTRUST_CopyChain(data, signer)))
803                 {
804                     if (data->psPfns->pfnCertCheckPolicy)
805                         ret = data->psPfns->pfnCertCheckPolicy(data, signer,
806                          FALSE, 0);
807                     else
808                         TRACE("no cert check policy, skipping policy check\n");
809                 }
810             }
811         }
812     }
813     CertCloseStore(store, 0);
814     return ret;
815 }
816
817 HRESULT WINAPI WintrustCertificateTrust(CRYPT_PROVIDER_DATA *data)
818 {
819     BOOL ret;
820
821     TRACE("(%p)\n", data);
822
823     if (!data->csSigners)
824     {
825         ret = FALSE;
826         SetLastError(TRUST_E_NOSIGNATURE);
827     }
828     else
829     {
830         DWORD i;
831         WTD_GENERIC_CHAIN_POLICY_CREATE_INFO createInfo;
832         CERT_CHAIN_PARA chainPara;
833
834         WINTRUST_CreateChainPolicyCreateInfo(data, &createInfo, &chainPara);
835         ret = TRUE;
836         for (i = 0; i < data->csSigners; i++)
837             ret = WINTRUST_CreateChainForSigner(data, i, &createInfo,
838              &chainPara);
839     }
840     if (!ret)
841         data->padwTrustStepErrors[TRUSTERROR_STEP_FINAL_CERTPROV] =
842          GetLastError();
843     TRACE("returning %d (%08x)\n", ret ? S_OK : S_FALSE,
844      data->padwTrustStepErrors[TRUSTERROR_STEP_FINAL_CERTPROV]);
845     return ret ? S_OK : S_FALSE;
846 }
847
848 HRESULT WINAPI GenericChainCertificateTrust(CRYPT_PROVIDER_DATA *data)
849 {
850     BOOL ret;
851     WTD_GENERIC_CHAIN_POLICY_DATA *policyData =
852      data->pWintrustData->pPolicyCallbackData;
853
854     TRACE("(%p)\n", data);
855
856     if (policyData && policyData->u.cbSize !=
857      sizeof(WTD_GENERIC_CHAIN_POLICY_CREATE_INFO))
858     {
859         SetLastError(ERROR_INVALID_PARAMETER);
860         ret = FALSE;
861         goto end;
862     }
863     if (!data->csSigners)
864     {
865         ret = FALSE;
866         SetLastError(TRUST_E_NOSIGNATURE);
867     }
868     else
869     {
870         DWORD i;
871         WTD_GENERIC_CHAIN_POLICY_CREATE_INFO createInfo, *pCreateInfo;
872         CERT_CHAIN_PARA chainPara, *pChainPara;
873
874         if (policyData)
875         {
876             pCreateInfo = policyData->pSignerChainInfo;
877             pChainPara = pCreateInfo->pChainPara;
878         }
879         else
880         {
881             WINTRUST_CreateChainPolicyCreateInfo(data, &createInfo, &chainPara);
882             pChainPara = &chainPara;
883             pCreateInfo = &createInfo;
884         }
885         ret = TRUE;
886         for (i = 0; i < data->csSigners; i++)
887             ret = WINTRUST_CreateChainForSigner(data, i, pCreateInfo,
888              pChainPara);
889     }
890
891 end:
892     if (!ret)
893         data->padwTrustStepErrors[TRUSTERROR_STEP_FINAL_CERTPROV] =
894          GetLastError();
895     TRACE("returning %d (%08x)\n", ret ? S_OK : S_FALSE,
896      data->padwTrustStepErrors[TRUSTERROR_STEP_FINAL_CERTPROV]);
897     return ret ? S_OK : S_FALSE;
898 }
899
900 HRESULT WINAPI SoftpubAuthenticode(CRYPT_PROVIDER_DATA *data)
901 {
902     BOOL ret;
903     CERT_CHAIN_POLICY_STATUS policyStatus = { sizeof(policyStatus), 0 };
904
905     TRACE("(%p)\n", data);
906
907     if (data->pWintrustData->dwUIChoice != WTD_UI_NONE)
908         FIXME("unimplemented for UI choice %d\n",
909          data->pWintrustData->dwUIChoice);
910     if (!data->csSigners)
911     {
912         ret = FALSE;
913         policyStatus.dwError = TRUST_E_NOSIGNATURE;
914     }
915     else
916     {
917         DWORD i;
918
919         ret = TRUE;
920         for (i = 0; ret && i < data->csSigners; i++)
921         {
922             BYTE hash[20];
923             DWORD size = sizeof(hash);
924
925             /* First make sure cert isn't disallowed */
926             if ((ret = CertGetCertificateContextProperty(
927              data->pasSigners[i].pasCertChain[0].pCert,
928              CERT_SIGNATURE_HASH_PROP_ID, hash, &size)))
929             {
930                 static const WCHAR disallowedW[] =
931                  { 'D','i','s','a','l','l','o','w','e','d',0 };
932                 HCERTSTORE disallowed = CertOpenStore(CERT_STORE_PROV_SYSTEM_W,
933                  X509_ASN_ENCODING, 0, CERT_SYSTEM_STORE_CURRENT_USER,
934                  disallowedW);
935
936                 if (disallowed)
937                 {
938                     PCCERT_CONTEXT found = CertFindCertificateInStore(
939                      disallowed, X509_ASN_ENCODING, 0, CERT_FIND_SIGNATURE_HASH,
940                      hash, NULL);
941
942                     if (found)
943                     {
944                         /* Disallowed!  Can't verify it. */
945                         policyStatus.dwError = TRUST_E_SUBJECT_NOT_TRUSTED;
946                         ret = FALSE;
947                         CertFreeCertificateContext(found);
948                     }
949                     CertCloseStore(disallowed, 0);
950                 }
951             }
952             if (ret)
953             {
954                 CERT_CHAIN_POLICY_PARA policyPara = { sizeof(policyPara), 0 };
955
956                 if (data->dwRegPolicySettings & WTPF_TRUSTTEST)
957                     policyPara.dwFlags |= CERT_CHAIN_POLICY_TRUST_TESTROOT_FLAG;
958                 if (data->dwRegPolicySettings & WTPF_TESTCANBEVALID)
959                     policyPara.dwFlags |= CERT_CHAIN_POLICY_ALLOW_TESTROOT_FLAG;
960                 if (data->dwRegPolicySettings & WTPF_IGNOREEXPIRATION)
961                     policyPara.dwFlags |=
962                      CERT_CHAIN_POLICY_IGNORE_NOT_TIME_VALID_FLAG |
963                      CERT_CHAIN_POLICY_IGNORE_CTL_NOT_TIME_VALID_FLAG |
964                      CERT_CHAIN_POLICY_IGNORE_NOT_TIME_NESTED_FLAG;
965                 if (data->dwRegPolicySettings & WTPF_IGNOREREVOKATION)
966                     policyPara.dwFlags |=
967                      CERT_CHAIN_POLICY_IGNORE_END_REV_UNKNOWN_FLAG |
968                      CERT_CHAIN_POLICY_IGNORE_CTL_SIGNER_REV_UNKNOWN_FLAG |
969                      CERT_CHAIN_POLICY_IGNORE_CA_REV_UNKNOWN_FLAG |
970                      CERT_CHAIN_POLICY_IGNORE_ROOT_REV_UNKNOWN_FLAG;
971                 CertVerifyCertificateChainPolicy(CERT_CHAIN_POLICY_AUTHENTICODE,
972                  data->pasSigners[i].pChainContext, &policyPara, &policyStatus);
973                 if (policyStatus.dwError != NO_ERROR)
974                     ret = FALSE;
975             }
976         }
977     }
978     if (!ret)
979         data->padwTrustStepErrors[TRUSTERROR_STEP_FINAL_POLICYPROV] =
980          policyStatus.dwError;
981     TRACE("returning %d (%08x)\n", ret ? S_OK : S_FALSE,
982      data->padwTrustStepErrors[TRUSTERROR_STEP_FINAL_POLICYPROV]);
983     return ret ? S_OK : S_FALSE;
984 }
985
986 static HRESULT WINAPI WINTRUST_DefaultPolicy(CRYPT_PROVIDER_DATA *pProvData,
987  DWORD dwStepError, DWORD dwRegPolicySettings, DWORD cSigner,
988  PWTD_GENERIC_CHAIN_POLICY_SIGNER_INFO rgpSigner, void *pvPolicyArg)
989 {
990     DWORD i;
991     CERT_CHAIN_POLICY_STATUS policyStatus = { sizeof(policyStatus), 0 };
992
993     for (i = 0; !policyStatus.dwError && i < cSigner; i++)
994     {
995         CERT_CHAIN_POLICY_PARA policyPara = { sizeof(policyPara), 0 };
996
997         if (dwRegPolicySettings & WTPF_IGNOREEXPIRATION)
998             policyPara.dwFlags |=
999              CERT_CHAIN_POLICY_IGNORE_NOT_TIME_VALID_FLAG |
1000              CERT_CHAIN_POLICY_IGNORE_CTL_NOT_TIME_VALID_FLAG |
1001              CERT_CHAIN_POLICY_IGNORE_NOT_TIME_NESTED_FLAG;
1002         if (dwRegPolicySettings & WTPF_IGNOREREVOKATION)
1003             policyPara.dwFlags |=
1004              CERT_CHAIN_POLICY_IGNORE_END_REV_UNKNOWN_FLAG |
1005              CERT_CHAIN_POLICY_IGNORE_CTL_SIGNER_REV_UNKNOWN_FLAG |
1006              CERT_CHAIN_POLICY_IGNORE_CA_REV_UNKNOWN_FLAG |
1007              CERT_CHAIN_POLICY_IGNORE_ROOT_REV_UNKNOWN_FLAG;
1008         CertVerifyCertificateChainPolicy(CERT_CHAIN_POLICY_BASE,
1009          rgpSigner[i].pChainContext, &policyPara, &policyStatus);
1010     }
1011     return policyStatus.dwError;
1012 }
1013
1014 HRESULT WINAPI GenericChainFinalProv(CRYPT_PROVIDER_DATA *data)
1015 {
1016     HRESULT err = NO_ERROR; /* not a typo, MS confused the types */
1017     WTD_GENERIC_CHAIN_POLICY_DATA *policyData =
1018      data->pWintrustData->pPolicyCallbackData;
1019
1020     TRACE("(%p)\n", data);
1021
1022     if (data->pWintrustData->dwUIChoice != WTD_UI_NONE)
1023         FIXME("unimplemented for UI choice %d\n",
1024          data->pWintrustData->dwUIChoice);
1025     if (!data->csSigners)
1026         err = TRUST_E_NOSIGNATURE;
1027     else
1028     {
1029         PFN_WTD_GENERIC_CHAIN_POLICY_CALLBACK policyCallback;
1030         void *policyArg;
1031         WTD_GENERIC_CHAIN_POLICY_SIGNER_INFO *signers = NULL;
1032
1033         if (policyData)
1034         {
1035             policyCallback = policyData->pfnPolicyCallback;
1036             policyArg = policyData->pvPolicyArg;
1037         }
1038         else
1039         {
1040             policyCallback = WINTRUST_DefaultPolicy;
1041             policyArg = NULL;
1042         }
1043         if (data->csSigners)
1044         {
1045             DWORD i;
1046
1047             signers = data->psPfns->pfnAlloc(
1048              data->csSigners * sizeof(WTD_GENERIC_CHAIN_POLICY_SIGNER_INFO));
1049             if (signers)
1050             {
1051                 for (i = 0; i < data->csSigners; i++)
1052                 {
1053                     signers[i].u.cbSize =
1054                      sizeof(WTD_GENERIC_CHAIN_POLICY_SIGNER_INFO);
1055                     signers[i].pChainContext =
1056                      data->pasSigners[i].pChainContext;
1057                     signers[i].dwSignerType = data->pasSigners[i].dwSignerType;
1058                     signers[i].pMsgSignerInfo = data->pasSigners[i].psSigner;
1059                     signers[i].dwError = data->pasSigners[i].dwError;
1060                     if (data->pasSigners[i].csCounterSigners)
1061                         FIXME("unimplemented for counter signers\n");
1062                     signers[i].cCounterSigner = 0;
1063                     signers[i].rgpCounterSigner = NULL;
1064                 }
1065             }
1066             else
1067                 err = ERROR_OUTOFMEMORY;
1068         }
1069         if (err == NO_ERROR)
1070             err = policyCallback(data, TRUSTERROR_STEP_FINAL_POLICYPROV,
1071              data->dwRegPolicySettings, data->csSigners, signers, policyArg);
1072         data->psPfns->pfnFree(signers);
1073     }
1074     if (err != NO_ERROR)
1075         data->padwTrustStepErrors[TRUSTERROR_STEP_FINAL_POLICYPROV] = err;
1076     TRACE("returning %d (%08x)\n", err == NO_ERROR ? S_OK : S_FALSE,
1077      data->padwTrustStepErrors[TRUSTERROR_STEP_FINAL_POLICYPROV]);
1078     return err == NO_ERROR ? S_OK : S_FALSE;
1079 }
1080
1081 HRESULT WINAPI SoftpubCleanup(CRYPT_PROVIDER_DATA *data)
1082 {
1083     DWORD i, j;
1084
1085     for (i = 0; i < data->csSigners; i++)
1086     {
1087         for (j = 0; j < data->pasSigners[i].csCertChain; j++)
1088             CertFreeCertificateContext(data->pasSigners[i].pasCertChain[j].pCert);
1089         data->psPfns->pfnFree(data->pasSigners[i].pasCertChain);
1090         data->psPfns->pfnFree(data->pasSigners[i].psSigner);
1091         CertFreeCertificateChain(data->pasSigners[i].pChainContext);
1092     }
1093     data->psPfns->pfnFree(data->pasSigners);
1094
1095     for (i = 0; i < data->chStores; i++)
1096         CertCloseStore(data->pahStores[i], 0);
1097     data->psPfns->pfnFree(data->pahStores);
1098
1099     if (data->u.pPDSip)
1100     {
1101         data->psPfns->pfnFree(data->u.pPDSip->pSip);
1102         data->psPfns->pfnFree(data->u.pPDSip->pCATSip);
1103         data->psPfns->pfnFree(data->u.pPDSip->psSipSubjectInfo);
1104         data->psPfns->pfnFree(data->u.pPDSip->psSipCATSubjectInfo);
1105         data->psPfns->pfnFree(data->u.pPDSip->psIndirectData);
1106     }
1107
1108     CryptMsgClose(data->hMsg);
1109
1110     if (data->fOpenedFile &&
1111      data->pWintrustData->dwUnionChoice == WTD_CHOICE_FILE)
1112         CloseHandle(data->pWintrustData->u.pFile->hFile);
1113
1114     return S_OK;
1115 }
1116
1117 HRESULT WINAPI HTTPSCertificateTrust(CRYPT_PROVIDER_DATA *data)
1118 {
1119     FIXME("(%p)\n", data);
1120     return S_OK;
1121 }
1122
1123 HRESULT WINAPI HTTPSFinalProv(CRYPT_PROVIDER_DATA *data)
1124 {
1125     FIXME("(%p)\n", data);
1126     return S_OK;
1127 }