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57 * Name utility routines.
60 #include "gssapiP_eap.h"
62 static gss_OID_desc gssEapNtPrincipalName = {
63 /* 1.3.6.1.4.1.5322.22.2.1 */
64 10, "\x2B\x06\x01\x04\x01\xA9\x4A\x16\x02\x01"
67 gss_OID GSS_EAP_NT_PRINCIPAL_NAME = &gssEapNtPrincipalName;
70 gssEapAllocName(OM_uint32 *minor, gss_name_t *pName)
75 *pName = GSS_C_NO_NAME;
77 name = (gss_name_t)GSSEAP_CALLOC(1, sizeof(*name));
83 if (GSSEAP_MUTEX_INIT(&name->mutex) != 0) {
85 gssEapReleaseName(&tmpMinor, &name);
91 return GSS_S_COMPLETE;
95 gssEapReleaseName(OM_uint32 *minor, gss_name_t *pName)
98 krb5_context krbContext = NULL;
104 return GSS_S_COMPLETE;
108 if (name == GSS_C_NO_NAME) {
109 return GSS_S_COMPLETE;
112 GSSEAP_KRB_INIT(&krbContext);
113 krb5_free_principal(krbContext, name->krbPrincipal);
114 gssEapReleaseOid(&tmpMinor, &name->mechanismUsed);
116 gssEapReleaseAttrContext(&tmpMinor, name);
118 GSSEAP_MUTEX_DESTROY(&name->mutex);
122 return GSS_S_COMPLETE;
126 krbPrincipalToName(OM_uint32 *minor,
127 krb5_principal *principal,
133 major = gssEapAllocName(minor, &name);
134 if (GSS_ERROR(major))
137 name->krbPrincipal = *principal;
140 if (KRB_PRINC_LENGTH(name->krbPrincipal) > 1) {
141 name->flags |= NAME_FLAG_SERVICE;
143 name->flags |= NAME_FLAG_NAI;
149 return GSS_S_COMPLETE;
153 importServiceName(OM_uint32 *minor,
154 const gss_buffer_t nameBuffer,
158 krb5_context krbContext;
159 krb5_principal krbPrinc;
160 char *service, *host;
162 GSSEAP_KRB_INIT(&krbContext);
164 major = bufferToString(minor, nameBuffer, &service);
165 if (GSS_ERROR(major))
168 host = strchr(service, '@');
174 /* XXX this is probably NOT what we want to be doing */
175 if (krb5_sname_to_principal(krbContext, host, service,
176 KRB5_NT_SRV_HST, &krbPrinc) != 0) {
177 GSSEAP_FREE(service);
178 *minor = GSSEAP_BAD_SERVICE_NAME;
179 return GSS_S_FAILURE;
182 major = krbPrincipalToName(minor, &krbPrinc, pName);
183 if (GSS_ERROR(major)) {
184 krb5_free_principal(krbContext, krbPrinc);
187 GSSEAP_FREE(service);
192 importUserName(OM_uint32 *minor,
193 const gss_buffer_t nameBuffer,
197 krb5_context krbContext;
198 krb5_principal krbPrinc;
201 GSSEAP_KRB_INIT(&krbContext);
203 if (nameBuffer == GSS_C_NO_BUFFER) {
204 *minor = krb5_copy_principal(krbContext,
205 krbAnonymousPrincipal(), &krbPrinc);
207 return GSS_S_FAILURE;
209 major = bufferToString(minor, nameBuffer, &nameString);
210 if (GSS_ERROR(major))
213 *minor = krb5_parse_name(krbContext, nameString, &krbPrinc);
215 GSSEAP_FREE(nameString);
216 return GSS_S_FAILURE;
220 major = krbPrincipalToName(minor, &krbPrinc, pName);
221 if (GSS_ERROR(major)) {
222 krb5_free_principal(krbContext, krbPrinc);
225 GSSEAP_FREE(nameString);
230 importAnonymousName(OM_uint32 *minor,
231 const gss_buffer_t nameBuffer GSSEAP_UNUSED,
235 krb5_context krbContext;
236 krb5_principal krbPrinc;
238 GSSEAP_KRB_INIT(&krbContext);
240 *minor = krb5_copy_principal(krbContext, krbAnonymousPrincipal(),
243 return GSS_S_FAILURE;
245 major = krbPrincipalToName(minor, &krbPrinc, pName);
246 if (GSS_ERROR(major)) {
247 krb5_free_principal(krbContext, krbPrinc);
253 #define UPDATE_REMAIN(n) do { \
258 #define CHECK_REMAIN(n) do { \
259 if (remain < (n)) { \
260 major = GSS_S_BAD_NAME; \
261 *minor = GSSEAP_TOK_TRUNC; \
267 gssEapImportNameInternal(OM_uint32 *minor,
268 const gss_buffer_t nameBuffer,
272 OM_uint32 major, tmpMinor;
273 krb5_context krbContext;
277 enum gss_eap_token_type tokType;
278 gss_name_t name = GSS_C_NO_NAME;
279 gss_OID mechanismUsed = GSS_C_NO_OID;
281 GSSEAP_KRB_INIT(&krbContext);
283 p = (unsigned char *)nameBuffer->value;
284 remain = nameBuffer->length;
286 if (flags & EXPORT_NAME_FLAG_OID) {
289 /* TOK_ID || MECH_OID_LEN || MECH_OID */
291 return GSS_S_BAD_NAME;
293 if (flags & EXPORT_NAME_FLAG_COMPOSITE)
294 tokType = TOK_TYPE_EXPORT_NAME_COMPOSITE;
296 tokType = TOK_TYPE_EXPORT_NAME;
299 if (load_uint16_be(p) != tokType)
300 return GSS_S_BAD_NAME;
304 len = load_uint16_be(p);
306 return GSS_S_BAD_NAME;
311 return GSS_S_BAD_NAME;
314 mech.elements = &p[2];
316 CHECK_REMAIN(mech.length);
318 major = gssEapCanonicalizeOid(minor,
320 OID_FLAG_FAMILY_MECH_VALID |
321 OID_FLAG_MAP_FAMILY_MECH_TO_NULL,
323 if (GSS_ERROR(major))
326 UPDATE_REMAIN(2 + mech.length);
331 len = load_uint32_be(p);
340 major = importUserName(minor, &buf, &name);
341 if (GSS_ERROR(major))
344 name->mechanismUsed = mechanismUsed;
345 mechanismUsed = GSS_C_NO_OID;
347 if (flags & EXPORT_NAME_FLAG_COMPOSITE) {
353 major = gssEapImportAttrContext(minor, &buf, name);
354 if (GSS_ERROR(major))
358 major = GSS_S_COMPLETE;
362 if (GSS_ERROR(major)) {
363 gssEapReleaseOid(&tmpMinor, &mechanismUsed);
364 gssEapReleaseName(&tmpMinor, &name);
373 importExportName(OM_uint32 *minor,
374 const gss_buffer_t nameBuffer,
377 return gssEapImportNameInternal(minor, nameBuffer, name,
378 EXPORT_NAME_FLAG_OID);
381 #ifdef HAVE_GSS_C_NT_COMPOSITE_EXPORT
383 importCompositeExportName(OM_uint32 *minor,
384 const gss_buffer_t nameBuffer,
387 return gssEapImportNameInternal(minor, nameBuffer, name,
388 EXPORT_NAME_FLAG_OID |
389 EXPORT_NAME_FLAG_COMPOSITE);
393 struct gss_eap_name_import_provider {
395 OM_uint32 (*import)(OM_uint32 *, const gss_buffer_t, gss_name_t *);
399 gssEapImportName(OM_uint32 *minor,
400 const gss_buffer_t nameBuffer,
405 struct gss_eap_name_import_provider nameTypes[] = {
406 { GSS_C_NT_USER_NAME, importUserName },
407 { GSS_EAP_NT_PRINCIPAL_NAME, importUserName },
408 { GSS_C_NT_HOSTBASED_SERVICE, importServiceName },
409 { GSS_C_NT_HOSTBASED_SERVICE_X, importServiceName },
410 { GSS_C_NT_ANONYMOUS, importAnonymousName },
411 { GSS_C_NT_EXPORT_NAME, importExportName },
412 #ifdef HAVE_GSS_C_NT_COMPOSITE_EXPORT
413 { GSS_C_NT_COMPOSITE_EXPORT, importCompositeExportName },
417 OM_uint32 major = GSS_S_BAD_NAMETYPE;
419 gss_name_t name = GSS_C_NO_NAME;
421 if (nameType == GSS_C_NO_OID)
422 nameType = nameTypes[0].oid;
424 for (i = 0; i < sizeof(nameTypes) / sizeof(nameTypes[0]); i++) {
425 if (oidEqual(nameTypes[i].oid, nameType)) {
426 major = nameTypes[i].import(minor, nameBuffer, &name);
431 if (major == GSS_S_COMPLETE &&
432 mechType != GSS_C_NO_OID) {
433 assert(gssEapIsConcreteMechanismOid(mechType));
434 assert(name->mechanismUsed == GSS_C_NO_OID);
436 major = gssEapCanonicalizeOid(minor, mechType, 0, &name->mechanismUsed);
439 if (GSS_ERROR(major))
440 gssEapReleaseName(&tmpMinor, &name);
448 gssEapExportName(OM_uint32 *minor,
449 const gss_name_t name,
450 gss_buffer_t exportedName)
452 return gssEapExportNameInternal(minor, name, exportedName,
453 EXPORT_NAME_FLAG_OID);
457 gssEapExportNameInternal(OM_uint32 *minor,
458 const gss_name_t name,
459 gss_buffer_t exportedName,
462 OM_uint32 major = GSS_S_FAILURE, tmpMinor;
463 krb5_context krbContext;
464 char *krbName = NULL;
465 size_t krbNameLen, exportedNameLen;
467 gss_buffer_desc attrs = GSS_C_EMPTY_BUFFER;
470 exportedName->length = 0;
471 exportedName->value = NULL;
473 if (name->mechanismUsed != GSS_C_NO_OID)
474 mech = name->mechanismUsed;
476 mech = GSS_EAP_MECHANISM;
478 GSSEAP_KRB_INIT(&krbContext);
480 *minor = krb5_unparse_name(krbContext, name->krbPrincipal, &krbName);
482 major = GSS_S_FAILURE;
485 krbNameLen = strlen(krbName);
488 if (flags & EXPORT_NAME_FLAG_OID) {
489 exportedNameLen += 6 + mech->length;
491 exportedNameLen += 4 + krbNameLen;
492 if (flags & EXPORT_NAME_FLAG_COMPOSITE) {
493 major = gssEapExportAttrContext(minor, name, &attrs);
494 if (GSS_ERROR(major))
496 exportedNameLen += attrs.length;
499 exportedName->value = GSSEAP_MALLOC(exportedNameLen);
500 if (exportedName->value == NULL) {
501 major = GSS_S_FAILURE;
505 exportedName->length = exportedNameLen;
507 p = (unsigned char *)exportedName->value;
509 if (flags & EXPORT_NAME_FLAG_OID) {
510 /* TOK | MECH_OID_LEN */
511 store_uint16_be((flags & EXPORT_NAME_FLAG_COMPOSITE)
512 ? TOK_TYPE_EXPORT_NAME_COMPOSITE
513 : TOK_TYPE_EXPORT_NAME,
516 store_uint16_be(mech->length + 2, p);
521 *p++ = mech->length & 0xff;
522 memcpy(p, mech->elements, mech->length);
527 store_uint32_be(krbNameLen, p);
531 memcpy(p, krbName, krbNameLen);
534 if (flags & EXPORT_NAME_FLAG_COMPOSITE) {
535 memcpy(p, attrs.value, attrs.length);
539 assert(p == (unsigned char *)exportedName->value + exportedNameLen);
541 major = GSS_S_COMPLETE;
545 gss_release_buffer(&tmpMinor, &attrs);
546 if (GSS_ERROR(major))
547 gss_release_buffer(&tmpMinor, exportedName);
548 krb5_free_unparsed_name(krbContext, krbName);
554 gssEapCanonicalizeName(OM_uint32 *minor,
555 const gss_name_t input_name,
556 const gss_OID mech_type,
557 gss_name_t *dest_name)
559 OM_uint32 major, tmpMinor;
560 krb5_context krbContext;
564 if (input_name == GSS_C_NO_NAME) {
566 return GSS_S_CALL_INACCESSIBLE_READ | GSS_S_BAD_NAME;
569 GSSEAP_KRB_INIT(&krbContext);
571 major = gssEapAllocName(minor, &name);
572 if (GSS_ERROR(major)) {
576 if (mech_type != GSS_C_NO_OID)
577 mech_used = mech_type;
579 mech_used = input_name->mechanismUsed;
581 major = gssEapCanonicalizeOid(minor,
584 &name->mechanismUsed);
585 if (GSS_ERROR(major))
588 name->flags = input_name->flags;
590 *minor = krb5_copy_principal(krbContext, input_name->krbPrincipal,
591 &name->krbPrincipal);
593 major = GSS_S_FAILURE;
597 if (input_name->attrCtx != NULL) {
598 major = gssEapDuplicateAttrContext(minor, input_name, name);
599 if (GSS_ERROR(major))
606 if (GSS_ERROR(major)) {
607 gssEapReleaseName(&tmpMinor, &name);
614 gssEapDuplicateName(OM_uint32 *minor,
615 const gss_name_t input_name,
616 gss_name_t *dest_name)
618 return gssEapCanonicalizeName(minor, input_name,
619 GSS_C_NO_OID, dest_name);
623 gssEapDisplayName(OM_uint32 *minor,
625 gss_buffer_t output_name_buffer,
626 gss_OID *output_name_type)
629 krb5_context krbContext;
633 GSSEAP_KRB_INIT(&krbContext);
635 output_name_buffer->length = 0;
636 output_name_buffer->value = NULL;
638 if (name == GSS_C_NO_NAME) {
640 return GSS_S_CALL_INACCESSIBLE_READ | GSS_S_BAD_NAME;
643 *minor = krb5_unparse_name(krbContext, name->krbPrincipal, &krbName);
645 return GSS_S_FAILURE;
648 major = makeStringBuffer(minor, krbName, output_name_buffer);
649 if (GSS_ERROR(major)) {
650 krb5_free_unparsed_name(krbContext, krbName);
654 krb5_free_unparsed_name(krbContext, krbName);
656 if (KRB_PRINC_TYPE(name->krbPrincipal) == KRB5_NT_WELLKNOWN &&
657 krb5_principal_compare(krbContext,
658 name->krbPrincipal, krbAnonymousPrincipal())) {
659 name_type = GSS_C_NT_ANONYMOUS;
661 name_type = GSS_EAP_NT_PRINCIPAL_NAME;
664 if (output_name_type != NULL)
665 *output_name_type = name_type;
667 return GSS_S_COMPLETE;