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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);
115 gssEapReleaseAttrContext(&tmpMinor, name);
117 GSSEAP_MUTEX_DESTROY(&name->mutex);
121 return GSS_S_COMPLETE;
125 krbPrincipalToName(OM_uint32 *minor,
126 krb5_principal *principal,
132 major = gssEapAllocName(minor, &name);
133 if (GSS_ERROR(major))
136 name->krbPrincipal = *principal;
139 if (KRB_PRINC_LENGTH(name->krbPrincipal) > 1) {
140 name->flags |= NAME_FLAG_SERVICE;
142 name->flags |= NAME_FLAG_NAI;
148 return GSS_S_COMPLETE;
152 importServiceName(OM_uint32 *minor,
153 const gss_buffer_t nameBuffer,
157 krb5_context krbContext;
158 krb5_principal krbPrinc;
159 char *service, *host;
161 GSSEAP_KRB_INIT(&krbContext);
163 major = bufferToString(minor, nameBuffer, &service);
164 if (GSS_ERROR(major))
167 host = strchr(service, '@');
173 /* XXX this is probably NOT what we want to be doing */
174 if (krb5_sname_to_principal(krbContext, host, service,
175 KRB5_NT_SRV_HST, &krbPrinc) != 0) {
176 GSSEAP_FREE(service);
177 *minor = GSSEAP_BAD_SERVICE_NAME;
178 return GSS_S_FAILURE;
181 major = krbPrincipalToName(minor, &krbPrinc, pName);
182 if (GSS_ERROR(major)) {
183 krb5_free_principal(krbContext, krbPrinc);
186 GSSEAP_FREE(service);
191 importUserName(OM_uint32 *minor,
192 const gss_buffer_t nameBuffer,
196 krb5_context krbContext;
197 krb5_principal krbPrinc;
200 GSSEAP_KRB_INIT(&krbContext);
202 if (nameBuffer == GSS_C_NO_BUFFER) {
203 *minor = krb5_copy_principal(krbContext,
204 krbAnonymousPrincipal(), &krbPrinc);
206 return GSS_S_FAILURE;
208 major = bufferToString(minor, nameBuffer, &nameString);
209 if (GSS_ERROR(major))
212 *minor = krb5_parse_name(krbContext, nameString, &krbPrinc);
214 GSSEAP_FREE(nameString);
215 return GSS_S_FAILURE;
219 major = krbPrincipalToName(minor, &krbPrinc, pName);
220 if (GSS_ERROR(major)) {
221 krb5_free_principal(krbContext, krbPrinc);
224 GSSEAP_FREE(nameString);
229 importAnonymousName(OM_uint32 *minor,
230 const gss_buffer_t nameBuffer,
234 krb5_context krbContext;
235 krb5_principal krbPrinc;
237 GSSEAP_KRB_INIT(&krbContext);
239 *minor = krb5_copy_principal(krbContext, krbAnonymousPrincipal(),
242 return GSS_S_FAILURE;
244 major = krbPrincipalToName(minor, &krbPrinc, pName);
245 if (GSS_ERROR(major)) {
246 krb5_free_principal(krbContext, krbPrinc);
252 #define UPDATE_REMAIN(n) do { \
257 #define CHECK_REMAIN(n) do { \
258 if (remain < (n)) { \
259 major = GSS_S_BAD_NAME; \
260 *minor = GSSEAP_TOK_TRUNC; \
266 gssEapImportNameInternal(OM_uint32 *minor,
267 const gss_buffer_t nameBuffer,
271 OM_uint32 major, tmpMinor;
272 krb5_context krbContext;
276 enum gss_eap_token_type tokType;
277 gss_name_t name = GSS_C_NO_NAME;
279 GSSEAP_KRB_INIT(&krbContext);
281 p = (unsigned char *)nameBuffer->value;
282 remain = nameBuffer->length;
284 if (flags & EXPORT_NAME_FLAG_OID) {
285 if (remain < 6 + GSS_EAP_MECHANISM->length + 4)
286 return GSS_S_BAD_NAME;
288 if (flags & EXPORT_NAME_FLAG_COMPOSITE)
289 tokType = TOK_TYPE_EXPORT_NAME_COMPOSITE;
291 tokType = TOK_TYPE_EXPORT_NAME;
294 if (load_uint16_be(p) != tokType)
295 return GSS_S_BAD_NAME;
299 len = load_uint16_be(p);
300 if (len != 2 + GSS_EAP_MECHANISM->length)
301 return GSS_S_BAD_NAME;
306 return GSS_S_BAD_NAME;
307 if (p[1] != GSS_EAP_MECHANISM->length)
308 return GSS_S_BAD_MECH;
309 if (memcmp(&p[2], GSS_EAP_MECHANISM->elements, GSS_EAP_MECHANISM->length))
310 return GSS_S_BAD_MECH;
311 UPDATE_REMAIN(2 + GSS_EAP_MECHANISM->length);
315 len = load_uint32_be(p);
324 major = importUserName(minor, &buf, &name);
325 if (GSS_ERROR(major))
328 if (flags & EXPORT_NAME_FLAG_COMPOSITE) {
334 major = gssEapImportAttrContext(minor, &buf, name);
335 if (GSS_ERROR(major))
339 major = GSS_S_COMPLETE;
343 if (GSS_ERROR(major))
344 gssEapReleaseName(&tmpMinor, &name);
352 importExportName(OM_uint32 *minor,
353 const gss_buffer_t nameBuffer,
356 return gssEapImportNameInternal(minor, nameBuffer, name,
357 EXPORT_NAME_FLAG_OID);
360 #ifdef HAVE_GSS_C_NT_COMPOSITE_EXPORT
362 importCompositeExportName(OM_uint32 *minor,
363 const gss_buffer_t nameBuffer,
366 return gssEapImportNameInternal(minor, nameBuffer, name,
367 EXPORT_NAME_FLAG_OID |
368 EXPORT_NAME_FLAG_COMPOSITE);
372 struct gss_eap_name_import_provider {
374 OM_uint32 (*import)(OM_uint32 *, const gss_buffer_t, gss_name_t *);
378 gssEapImportName(OM_uint32 *minor,
379 const gss_buffer_t nameBuffer,
383 struct gss_eap_name_import_provider nameTypes[] = {
384 { GSS_C_NT_USER_NAME, importUserName },
385 { GSS_EAP_NT_PRINCIPAL_NAME, importUserName },
386 { GSS_C_NT_HOSTBASED_SERVICE, importServiceName },
387 { GSS_C_NT_HOSTBASED_SERVICE_X, importServiceName },
388 { GSS_C_NT_ANONYMOUS, importAnonymousName },
389 { GSS_C_NT_EXPORT_NAME, importExportName },
390 #ifdef HAVE_GSS_C_NT_COMPOSITE_EXPORT
391 { GSS_C_NT_COMPOSITE_EXPORT, importCompositeExportName },
396 *name = GSS_C_NO_NAME;
398 if (nameType == GSS_C_NO_OID)
399 nameType = nameTypes[0].oid;
401 for (i = 0; i < sizeof(nameTypes) / sizeof(nameTypes[0]); i++) {
402 if (oidEqual(nameTypes[i].oid, nameType))
403 return nameTypes[i].import(minor, nameBuffer, name);
406 return GSS_S_BAD_NAMETYPE;
410 gssEapExportName(OM_uint32 *minor,
411 const gss_name_t name,
412 gss_buffer_t exportedName)
414 return gssEapExportNameInternal(minor, name, exportedName,
415 EXPORT_NAME_FLAG_OID);
419 gssEapExportNameInternal(OM_uint32 *minor,
420 const gss_name_t name,
421 gss_buffer_t exportedName,
424 OM_uint32 major = GSS_S_FAILURE, tmpMinor;
425 krb5_context krbContext;
426 char *krbName = NULL;
427 size_t krbNameLen, exportedNameLen;
429 gss_buffer_desc attrs = GSS_C_EMPTY_BUFFER;
431 exportedName->length = 0;
432 exportedName->value = NULL;
434 GSSEAP_KRB_INIT(&krbContext);
436 *minor = krb5_unparse_name(krbContext, name->krbPrincipal, &krbName);
438 major = GSS_S_FAILURE;
441 krbNameLen = strlen(krbName);
444 if (flags & EXPORT_NAME_FLAG_OID) {
445 exportedNameLen += 6 + GSS_EAP_MECHANISM->length;
447 exportedNameLen += 4 + krbNameLen;
448 if (flags & EXPORT_NAME_FLAG_COMPOSITE) {
449 major = gssEapExportAttrContext(minor, name, &attrs);
450 if (GSS_ERROR(major))
452 exportedNameLen += attrs.length;
455 exportedName->value = GSSEAP_MALLOC(exportedNameLen);
456 if (exportedName->value == NULL) {
457 major = GSS_S_FAILURE;
461 exportedName->length = exportedNameLen;
463 p = (unsigned char *)exportedName->value;
465 if (flags & EXPORT_NAME_FLAG_OID) {
466 /* TOK | MECH_OID_LEN */
467 store_uint16_be((flags & EXPORT_NAME_FLAG_COMPOSITE)
468 ? TOK_TYPE_EXPORT_NAME_COMPOSITE
469 : TOK_TYPE_EXPORT_NAME,
472 store_uint16_be(GSS_EAP_MECHANISM->length + 2, p);
477 *p++ = GSS_EAP_MECHANISM->length & 0xff;
478 memcpy(p, GSS_EAP_MECHANISM->elements, GSS_EAP_MECHANISM->length);
479 p += GSS_EAP_MECHANISM->length;
483 store_uint32_be(krbNameLen, p);
487 memcpy(p, krbName, krbNameLen);
490 if (flags & EXPORT_NAME_FLAG_COMPOSITE) {
491 memcpy(p, attrs.value, attrs.length);
495 assert(p == (unsigned char *)exportedName->value + exportedNameLen);
497 major = GSS_S_COMPLETE;
501 gss_release_buffer(&tmpMinor, &attrs);
502 if (GSS_ERROR(major))
503 gss_release_buffer(&tmpMinor, exportedName);
504 krb5_free_unparsed_name(krbContext, krbName);
510 gssEapDuplicateName(OM_uint32 *minor,
511 const gss_name_t input_name,
512 gss_name_t *dest_name)
514 OM_uint32 major, tmpMinor;
515 krb5_context krbContext;
518 if (input_name == GSS_C_NO_NAME) {
520 return GSS_S_CALL_INACCESSIBLE_READ | GSS_S_BAD_NAME;
523 GSSEAP_KRB_INIT(&krbContext);
525 major = gssEapAllocName(minor, &name);
526 if (GSS_ERROR(major)) {
530 name->flags = input_name->flags;
532 *minor = krb5_copy_principal(krbContext, input_name->krbPrincipal,
533 &name->krbPrincipal);
535 major = GSS_S_FAILURE;
539 if (input_name->attrCtx != NULL) {
540 major = gssEapDuplicateAttrContext(minor, input_name, name);
541 if (GSS_ERROR(major))
548 if (GSS_ERROR(major)) {
549 gssEapReleaseName(&tmpMinor, &name);
556 gssEapDisplayName(OM_uint32 *minor,
558 gss_buffer_t output_name_buffer,
559 gss_OID *output_name_type)
562 krb5_context krbContext;
566 GSSEAP_KRB_INIT(&krbContext);
568 output_name_buffer->length = 0;
569 output_name_buffer->value = NULL;
571 if (name == GSS_C_NO_NAME) {
573 return GSS_S_CALL_INACCESSIBLE_READ | GSS_S_BAD_NAME;
576 *minor = krb5_unparse_name(krbContext, name->krbPrincipal, &krbName);
578 return GSS_S_FAILURE;
581 major = makeStringBuffer(minor, krbName, output_name_buffer);
582 if (GSS_ERROR(major)) {
583 krb5_free_unparsed_name(krbContext, krbName);
587 krb5_free_unparsed_name(krbContext, krbName);
589 if (KRB_PRINC_TYPE(name->krbPrincipal) == KRB5_NT_WELLKNOWN &&
590 krb5_principal_compare(krbContext,
591 name->krbPrincipal, krbAnonymousPrincipal())) {
592 name_type = GSS_C_NT_ANONYMOUS;
594 name_type = GSS_EAP_NT_PRINCIPAL_NAME;
597 if (output_name_type != NULL)
598 *output_name_type = name_type;
600 return GSS_S_COMPLETE;