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34 * Utility routines for credential handles.
37 #include "gssapiP_eap.h"
40 # include <shlobj.h> /* may need to use ShFolder.h instead */
47 gssEapAllocCred(OM_uint32 *minor, gss_cred_id_t *pCred)
52 *pCred = GSS_C_NO_CREDENTIAL;
54 cred = (gss_cred_id_t)GSSEAP_CALLOC(1, sizeof(*cred));
60 if (GSSEAP_MUTEX_INIT(&cred->mutex) != 0) {
61 *minor = GSSEAP_GET_LAST_ERROR();
62 gssEapReleaseCred(&tmpMinor, &cred);
69 return GSS_S_COMPLETE;
73 zeroAndReleasePassword(gss_buffer_t password)
75 if (password->value != NULL) {
76 memset(password->value, 0, password->length);
77 GSSEAP_FREE(password->value);
80 password->value = NULL;
85 gssEapReleaseCred(OM_uint32 *minor, gss_cred_id_t *pCred)
88 gss_cred_id_t cred = *pCred;
89 krb5_context krbContext = NULL;
91 if (cred == GSS_C_NO_CREDENTIAL) {
92 return GSS_S_COMPLETE;
95 GSSEAP_KRB_INIT(&krbContext);
97 gssEapReleaseName(&tmpMinor, &cred->name);
98 gssEapReleaseName(&tmpMinor, &cred->target);
100 zeroAndReleasePassword(&cred->password);
102 gss_release_buffer(&tmpMinor, &cred->radiusConfigFile);
103 gss_release_buffer(&tmpMinor, &cred->radiusConfigStanza);
104 gss_release_buffer(&tmpMinor, &cred->caCertificate);
105 gss_release_buffer(&tmpMinor, &cred->subjectNameConstraint);
106 gss_release_buffer(&tmpMinor, &cred->subjectAltNameConstraint);
108 #ifdef GSSEAP_ENABLE_REAUTH
109 if (cred->krbCredCache != NULL) {
110 if (cred->flags & CRED_FLAG_DEFAULT_CCACHE)
111 krb5_cc_close(krbContext, cred->krbCredCache);
113 krb5_cc_destroy(krbContext, cred->krbCredCache);
115 if (cred->reauthCred != GSS_C_NO_CREDENTIAL)
116 gssReleaseCred(&tmpMinor, &cred->reauthCred);
119 GSSEAP_MUTEX_DESTROY(&cred->mutex);
120 memset(cred, 0, sizeof(*cred));
125 return GSS_S_COMPLETE;
129 readStaticIdentityFile(OM_uint32 *minor,
130 gss_buffer_t defaultIdentity,
131 gss_buffer_t defaultPassword)
133 OM_uint32 major, tmpMinor;
139 struct passwd *pw = NULL, pwd;
143 defaultIdentity->length = 0;
144 defaultIdentity->value = NULL;
146 if (defaultPassword != GSS_C_NO_BUFFER) {
147 defaultPassword->length = 0;
148 defaultPassword->value = NULL;
151 ccacheName = getenv("GSSEAP_IDENTITY");
152 if (ccacheName == NULL) {
154 TCHAR szPath[MAX_PATH];
156 if (!SUCCEEDED(SHGetFolderPath(NULL,
157 CSIDL_APPDATA, /* |CSIDL_FLAG_CREATE */
158 NULL, /* User access token */
159 0, /* SHGFP_TYPE_CURRENT */
161 major = GSS_S_CRED_UNAVAIL;
162 *minor = GSSEAP_GET_LAST_ERROR(); /* XXX */
166 snprintf(buf, sizeof(buf), "%s/.gss_eap_id", szPath);
168 if (getpwuid_r(getuid(), &pwd, pwbuf, sizeof(pwbuf), &pw) != 0 ||
169 pw == NULL || pw->pw_dir == NULL) {
170 major = GSS_S_CRED_UNAVAIL;
171 *minor = GSSEAP_GET_LAST_ERROR();
175 snprintf(buf, sizeof(buf), "%s/.gss_eap_id", pw->pw_dir);
180 fp = fopen(ccacheName, "r");
182 major = GSS_S_CRED_UNAVAIL;
183 *minor = GSSEAP_NO_DEFAULT_CRED;
187 while (fgets(buf, sizeof(buf), fp) != NULL) {
188 gss_buffer_desc src, *dst;
190 src.length = strlen(buf);
196 if (buf[src.length - 1] == '\n') {
197 buf[src.length - 1] = '\0';
198 if (--src.length == 0)
203 dst = defaultIdentity;
205 dst = defaultPassword;
209 if (dst != GSS_C_NO_BUFFER) {
210 major = duplicateBuffer(minor, &src, dst);
211 if (GSS_ERROR(major))
218 if (defaultIdentity->length == 0) {
219 major = GSS_S_CRED_UNAVAIL;
220 *minor = GSSEAP_NO_DEFAULT_CRED;
224 major = GSS_S_COMPLETE;
231 if (GSS_ERROR(major)) {
232 gss_release_buffer(&tmpMinor, defaultIdentity);
233 zeroAndReleasePassword(defaultPassword);
236 memset(buf, 0, sizeof(buf));
242 gssEapPrimaryMechForCred(gss_cred_id_t cred)
244 gss_OID nameMech = GSS_C_NO_OID;
246 if (cred->mechanisms != GSS_C_NO_OID_SET &&
247 cred->mechanisms->count == 1)
248 nameMech = &cred->mechanisms->elements[0];
254 gssEapAcquireCred(OM_uint32 *minor,
255 const gss_name_t desiredName,
256 OM_uint32 timeReq GSSEAP_UNUSED,
257 const gss_OID_set desiredMechs,
259 gss_cred_id_t *pCred,
260 gss_OID_set *pActualMechs,
263 OM_uint32 major, tmpMinor;
266 /* XXX TODO validate with changed set_cred_option API */
267 *pCred = GSS_C_NO_CREDENTIAL;
269 major = gssEapAllocCred(minor, &cred);
270 if (GSS_ERROR(major))
275 cred->flags |= CRED_FLAG_INITIATE | CRED_FLAG_ACCEPT;
278 cred->flags |= CRED_FLAG_INITIATE;
281 cred->flags |= CRED_FLAG_ACCEPT;
284 major = GSS_S_FAILURE;
285 *minor = GSSEAP_BAD_USAGE;
290 major = gssEapValidateMechs(minor, desiredMechs);
291 if (GSS_ERROR(major))
294 major = duplicateOidSet(minor, desiredMechs, &cred->mechanisms);
295 if (GSS_ERROR(major))
298 if (desiredName != GSS_C_NO_NAME) {
299 GSSEAP_MUTEX_LOCK(&desiredName->mutex);
301 major = gssEapDuplicateName(minor, desiredName, &cred->name);
302 if (GSS_ERROR(major)) {
303 GSSEAP_MUTEX_UNLOCK(&desiredName->mutex);
307 GSSEAP_MUTEX_UNLOCK(&desiredName->mutex);
310 if (pActualMechs != NULL) {
311 major = duplicateOidSet(minor, cred->mechanisms, pActualMechs);
312 if (GSS_ERROR(major))
317 *timeRec = GSS_C_INDEFINITE;
321 major = GSS_S_COMPLETE;
325 if (GSS_ERROR(major))
326 gssEapReleaseCred(&tmpMinor, &cred);
332 * Return TRUE if cred available for mechanism. Caller need no acquire
333 * lock because mechanisms list is immutable.
336 gssEapCredAvailable(gss_cred_id_t cred, gss_OID mech)
341 assert(mech != GSS_C_NO_OID);
343 if (cred == GSS_C_NO_CREDENTIAL || cred->mechanisms == GSS_C_NO_OID_SET)
346 gss_test_oid_set_member(&minor, mech, cred->mechanisms, &present);
352 staticIdentityFileResolveDefaultIdentity(OM_uint32 *minor,
353 const gss_cred_id_t cred,
356 OM_uint32 major, tmpMinor;
357 gss_OID nameMech = gssEapPrimaryMechForCred(cred);
358 gss_buffer_desc defaultIdentity = GSS_C_EMPTY_BUFFER;
360 *pName = GSS_C_NO_NAME;
362 major = readStaticIdentityFile(minor, &defaultIdentity, GSS_C_NO_BUFFER);
363 if (major == GSS_S_COMPLETE) {
364 major = gssEapImportName(minor, &defaultIdentity, GSS_C_NT_USER_NAME,
368 gss_release_buffer(&tmpMinor, &defaultIdentity);
374 gssEapResolveCredIdentity(OM_uint32 *minor,
378 gss_OID nameMech = gssEapPrimaryMechForCred(cred);
380 if (cred->name != GSS_C_NO_NAME) {
382 return GSS_S_COMPLETE;
385 if (cred->flags & CRED_FLAG_ACCEPT) {
386 gss_buffer_desc nameBuf = GSS_C_EMPTY_BUFFER;
387 char serviceName[5 + MAXHOSTNAMELEN];
389 /* default host-based service is host@localhost */
390 memcpy(serviceName, "host@", 5);
391 if (gethostname(&serviceName[5], MAXHOSTNAMELEN) != 0) {
392 *minor = GSSEAP_NO_HOSTNAME;
393 return GSS_S_FAILURE;
396 nameBuf.value = serviceName;
397 nameBuf.length = strlen((char *)nameBuf.value);
399 major = gssEapImportName(minor, &nameBuf, GSS_C_NT_HOSTBASED_SERVICE,
400 nameMech, &cred->name);
401 if (GSS_ERROR(major))
403 } else if (cred->flags & CRED_FLAG_INITIATE) {
404 #ifdef HAVE_MOONSHOT_GET_IDENTITY
405 major = libMoonshotResolveDefaultIdentity(minor, cred, &cred->name);
406 if (major == GSS_S_CRED_UNAVAIL)
408 major = staticIdentityFileResolveDefaultIdentity(minor, cred, &cred->name);
409 if (major != GSS_S_CRED_UNAVAIL)
414 return GSS_S_COMPLETE;
418 gssEapInquireCred(OM_uint32 *minor,
421 OM_uint32 *pLifetime,
422 gss_cred_usage_t *cred_usage,
423 gss_OID_set *mechanisms)
426 time_t now, lifetime;
429 major = gssEapResolveCredIdentity(minor, cred);
430 if (GSS_ERROR(major))
433 if (cred->name != GSS_C_NO_NAME) {
434 major = gssEapDuplicateName(minor, cred->name, name);
435 if (GSS_ERROR(major))
438 *name = GSS_C_NO_NAME;
441 if (cred_usage != NULL) {
442 OM_uint32 flags = (cred->flags & (CRED_FLAG_INITIATE | CRED_FLAG_ACCEPT));
445 case CRED_FLAG_INITIATE:
446 *cred_usage = GSS_C_INITIATE;
448 case CRED_FLAG_ACCEPT:
449 *cred_usage = GSS_C_ACCEPT;
452 *cred_usage = GSS_C_BOTH;
457 if (mechanisms != NULL) {
458 if (cred->mechanisms != GSS_C_NO_OID_SET)
459 major = duplicateOidSet(minor, cred->mechanisms, mechanisms);
461 major = gssEapIndicateMechs(minor, mechanisms);
462 if (GSS_ERROR(major))
466 if (cred->expiryTime == 0) {
467 lifetime = GSS_C_INDEFINITE;
470 lifetime = now - cred->expiryTime;
475 if (pLifetime != NULL) {
476 *pLifetime = lifetime;
480 major = GSS_S_CREDENTIALS_EXPIRED;
481 *minor = GSSEAP_CRED_EXPIRED;
485 major = GSS_S_COMPLETE;
493 gssEapSetCredPassword(OM_uint32 *minor,
495 const gss_buffer_t password)
497 OM_uint32 major, tmpMinor;
498 gss_buffer_desc newPassword = GSS_C_EMPTY_BUFFER;
500 if (cred->flags & CRED_FLAG_RESOLVED) {
501 major = GSS_S_FAILURE;
502 *minor = GSSEAP_CRED_RESOLVED;
506 if (password != GSS_C_NO_BUFFER) {
507 major = duplicateBuffer(minor, password, &newPassword);
508 if (GSS_ERROR(major))
511 cred->flags |= CRED_FLAG_PASSWORD;
513 cred->flags &= ~(CRED_FLAG_PASSWORD);
516 gss_release_buffer(&tmpMinor, &cred->password);
517 cred->password = newPassword;
519 major = GSS_S_COMPLETE;
527 gssEapSetCredService(OM_uint32 *minor,
529 const gss_name_t target)
531 OM_uint32 major, tmpMinor;
532 gss_name_t newTarget = GSS_C_NO_NAME;
534 if (cred->flags & CRED_FLAG_RESOLVED) {
535 major = GSS_S_FAILURE;
536 *minor = GSSEAP_CRED_RESOLVED;
540 if (target != GSS_C_NO_NAME) {
541 major = gssEapDuplicateName(minor, target, &newTarget);
542 if (GSS_ERROR(major))
546 gssEapReleaseName(&tmpMinor, &cred->target);
547 cred->target = newTarget;
549 major = GSS_S_COMPLETE;
557 gssEapDuplicateCred(OM_uint32 *minor,
558 const gss_cred_id_t src,
561 OM_uint32 major, tmpMinor;
562 gss_cred_id_t dst = GSS_C_NO_CREDENTIAL;
564 *pDst = GSS_C_NO_CREDENTIAL;
566 major = gssEapAllocCred(minor, &dst);
567 if (GSS_ERROR(major))
570 dst->flags = src->flags;
572 if (src->name != GSS_C_NO_NAME) {
573 major = gssEapDuplicateName(minor, src->name, &dst->name);
574 if (GSS_ERROR(major))
578 if (src->target != GSS_C_NO_NAME) {
579 major = gssEapDuplicateName(minor, src->target, &dst->target);
580 if (GSS_ERROR(major))
584 if (src->password.value != NULL) {
585 major = duplicateBuffer(minor, &src->password, &dst->password);
586 if (GSS_ERROR(major))
590 major = duplicateOidSet(minor, src->mechanisms, &dst->mechanisms);
591 if (GSS_ERROR(major))
594 dst->expiryTime = src->expiryTime;
596 if (src->radiusConfigFile.value != NULL)
597 duplicateBufferOrCleanup(&src->radiusConfigFile, &dst->radiusConfigFile);
598 if (src->radiusConfigStanza.value != NULL)
599 duplicateBufferOrCleanup(&src->radiusConfigStanza, &dst->radiusConfigStanza);
600 if (src->caCertificate.value != NULL)
601 duplicateBufferOrCleanup(&src->caCertificate, &dst->caCertificate);
602 if (src->subjectNameConstraint.value != NULL)
603 duplicateBufferOrCleanup(&src->subjectNameConstraint, &dst->subjectNameConstraint);
604 if (src->subjectAltNameConstraint.value != NULL)
605 duplicateBufferOrCleanup(&src->subjectAltNameConstraint, &dst->subjectAltNameConstraint);
607 #ifdef GSSEAP_ENABLE_REAUTH
608 /* XXX krbCredCache, reauthCred */
612 dst = GSS_C_NO_CREDENTIAL;
614 major = GSS_S_COMPLETE;
618 gssEapReleaseCred(&tmpMinor, &dst);
624 staticIdentityFileResolveInitiatorCred(OM_uint32 *minor, gss_cred_id_t cred)
626 OM_uint32 major, tmpMinor;
627 gss_buffer_desc defaultIdentity = GSS_C_EMPTY_BUFFER;
628 gss_name_t defaultIdentityName = GSS_C_NO_NAME;
629 gss_buffer_desc defaultPassword = GSS_C_EMPTY_BUFFER;
630 int isDefaultIdentity = FALSE;
632 major = readStaticIdentityFile(minor, &defaultIdentity, &defaultPassword);
633 if (GSS_ERROR(major))
636 major = gssEapImportName(minor, &defaultIdentity, GSS_C_NT_USER_NAME,
637 gssEapPrimaryMechForCred(cred), &defaultIdentityName);
638 if (GSS_ERROR(major))
641 if (defaultIdentityName == GSS_C_NO_NAME) {
642 if (cred->name == GSS_C_NO_NAME) {
643 major = GSS_S_CRED_UNAVAIL;
644 *minor = GSSEAP_NO_DEFAULT_IDENTITY;
648 if (cred->name == GSS_C_NO_NAME) {
649 cred->name = defaultIdentityName;
650 defaultIdentityName = GSS_C_NO_NAME;
651 isDefaultIdentity = TRUE;
653 major = gssEapCompareName(minor, cred->name,
654 defaultIdentityName, &isDefaultIdentity);
655 if (GSS_ERROR(major))
660 if (isDefaultIdentity &&
661 (cred->flags & CRED_FLAG_PASSWORD) == 0) {
662 major = gssEapSetCredPassword(minor, cred, &defaultPassword);
663 if (GSS_ERROR(major))
668 gssEapReleaseName(&tmpMinor, &defaultIdentityName);
669 zeroAndReleasePassword(&defaultPassword);
670 gss_release_buffer(&tmpMinor, &defaultIdentity);
676 gssEapResolveInitiatorCred(OM_uint32 *minor,
677 const gss_cred_id_t cred,
678 const gss_name_t targetName
679 #ifndef HAVE_MOONSHOT_GET_IDENTITY
683 gss_cred_id_t *pResolvedCred)
685 OM_uint32 major, tmpMinor;
686 gss_cred_id_t resolvedCred = GSS_C_NO_CREDENTIAL;
688 if (cred == GSS_C_NO_CREDENTIAL) {
689 major = gssEapAcquireCred(minor,
697 if (GSS_ERROR(major))
700 if ((cred->flags & CRED_FLAG_INITIATE) == 0) {
701 major = GSS_S_NO_CRED;
702 *minor = GSSEAP_CRED_USAGE_MISMATCH;
706 major = gssEapDuplicateCred(minor, cred, &resolvedCred);
707 if (GSS_ERROR(major))
711 if ((resolvedCred->flags & CRED_FLAG_RESOLVED) == 0) {
712 #ifdef HAVE_MOONSHOT_GET_IDENTITY
713 major = libMoonshotResolveInitiatorCred(minor, resolvedCred, targetName);
714 if (major == GSS_S_CRED_UNAVAIL)
716 major = staticIdentityFileResolveInitiatorCred(minor, resolvedCred);
717 if (GSS_ERROR(major))
720 if ((resolvedCred->flags & CRED_FLAG_PASSWORD) == 0) {
721 major = GSS_S_CRED_UNAVAIL;
722 *minor = GSSEAP_NO_DEFAULT_CRED;
726 resolvedCred->flags |= CRED_FLAG_RESOLVED;
729 *pResolvedCred = resolvedCred;
730 resolvedCred = GSS_C_NO_CREDENTIAL;
732 major = GSS_S_COMPLETE;
736 gssEapReleaseCred(&tmpMinor, &resolvedCred);