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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 GSSEAP_UNUSED,
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)
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);
316 len = load_uint32_be(p);
325 major = importUserName(minor, &buf, &name);
326 if (GSS_ERROR(major))
329 if (flags & EXPORT_NAME_FLAG_COMPOSITE) {
335 major = gssEapImportAttrContext(minor, &buf, name);
336 if (GSS_ERROR(major))
340 major = GSS_S_COMPLETE;
344 if (GSS_ERROR(major))
345 gssEapReleaseName(&tmpMinor, &name);
353 importExportName(OM_uint32 *minor,
354 const gss_buffer_t nameBuffer,
357 return gssEapImportNameInternal(minor, nameBuffer, name,
358 EXPORT_NAME_FLAG_OID);
361 #ifdef HAVE_GSS_C_NT_COMPOSITE_EXPORT
363 importCompositeExportName(OM_uint32 *minor,
364 const gss_buffer_t nameBuffer,
367 return gssEapImportNameInternal(minor, nameBuffer, name,
368 EXPORT_NAME_FLAG_OID |
369 EXPORT_NAME_FLAG_COMPOSITE);
373 struct gss_eap_name_import_provider {
375 OM_uint32 (*import)(OM_uint32 *, const gss_buffer_t, gss_name_t *);
379 gssEapImportName(OM_uint32 *minor,
380 const gss_buffer_t nameBuffer,
384 struct gss_eap_name_import_provider nameTypes[] = {
385 { GSS_C_NT_USER_NAME, importUserName },
386 { GSS_EAP_NT_PRINCIPAL_NAME, importUserName },
387 { GSS_C_NT_HOSTBASED_SERVICE, importServiceName },
388 { GSS_C_NT_HOSTBASED_SERVICE_X, importServiceName },
389 { GSS_C_NT_ANONYMOUS, importAnonymousName },
390 { GSS_C_NT_EXPORT_NAME, importExportName },
391 #ifdef HAVE_GSS_C_NT_COMPOSITE_EXPORT
392 { GSS_C_NT_COMPOSITE_EXPORT, importCompositeExportName },
397 *name = GSS_C_NO_NAME;
399 if (nameType == GSS_C_NO_OID)
400 nameType = nameTypes[0].oid;
402 for (i = 0; i < sizeof(nameTypes) / sizeof(nameTypes[0]); i++) {
403 if (oidEqual(nameTypes[i].oid, nameType))
404 return nameTypes[i].import(minor, nameBuffer, name);
407 return GSS_S_BAD_NAMETYPE;
411 gssEapExportName(OM_uint32 *minor,
412 const gss_name_t name,
413 gss_buffer_t exportedName)
415 return gssEapExportNameInternal(minor, name, exportedName,
416 EXPORT_NAME_FLAG_OID);
420 gssEapExportNameInternal(OM_uint32 *minor,
421 const gss_name_t name,
422 gss_buffer_t exportedName,
425 OM_uint32 major = GSS_S_FAILURE, tmpMinor;
426 krb5_context krbContext;
427 char *krbName = NULL;
428 size_t krbNameLen, exportedNameLen;
430 gss_buffer_desc attrs = GSS_C_EMPTY_BUFFER;
432 exportedName->length = 0;
433 exportedName->value = NULL;
435 GSSEAP_KRB_INIT(&krbContext);
437 *minor = krb5_unparse_name(krbContext, name->krbPrincipal, &krbName);
439 major = GSS_S_FAILURE;
442 krbNameLen = strlen(krbName);
445 if (flags & EXPORT_NAME_FLAG_OID) {
446 exportedNameLen += 6 + GSS_EAP_MECHANISM->length;
448 exportedNameLen += 4 + krbNameLen;
449 if (flags & EXPORT_NAME_FLAG_COMPOSITE) {
450 major = gssEapExportAttrContext(minor, name, &attrs);
451 if (GSS_ERROR(major))
453 exportedNameLen += attrs.length;
456 exportedName->value = GSSEAP_MALLOC(exportedNameLen);
457 if (exportedName->value == NULL) {
458 major = GSS_S_FAILURE;
462 exportedName->length = exportedNameLen;
464 p = (unsigned char *)exportedName->value;
466 if (flags & EXPORT_NAME_FLAG_OID) {
467 /* TOK | MECH_OID_LEN */
468 store_uint16_be((flags & EXPORT_NAME_FLAG_COMPOSITE)
469 ? TOK_TYPE_EXPORT_NAME_COMPOSITE
470 : TOK_TYPE_EXPORT_NAME,
473 store_uint16_be(GSS_EAP_MECHANISM->length + 2, p);
478 *p++ = GSS_EAP_MECHANISM->length & 0xff;
479 memcpy(p, GSS_EAP_MECHANISM->elements, GSS_EAP_MECHANISM->length);
480 p += GSS_EAP_MECHANISM->length;
484 store_uint32_be(krbNameLen, p);
488 memcpy(p, krbName, krbNameLen);
491 if (flags & EXPORT_NAME_FLAG_COMPOSITE) {
492 memcpy(p, attrs.value, attrs.length);
496 assert(p == (unsigned char *)exportedName->value + exportedNameLen);
498 major = GSS_S_COMPLETE;
502 gss_release_buffer(&tmpMinor, &attrs);
503 if (GSS_ERROR(major))
504 gss_release_buffer(&tmpMinor, exportedName);
505 krb5_free_unparsed_name(krbContext, krbName);
511 gssEapDuplicateName(OM_uint32 *minor,
512 const gss_name_t input_name,
513 gss_name_t *dest_name)
515 OM_uint32 major, tmpMinor;
516 krb5_context krbContext;
519 if (input_name == GSS_C_NO_NAME) {
521 return GSS_S_CALL_INACCESSIBLE_READ | GSS_S_BAD_NAME;
524 GSSEAP_KRB_INIT(&krbContext);
526 major = gssEapAllocName(minor, &name);
527 if (GSS_ERROR(major)) {
531 name->flags = input_name->flags;
533 *minor = krb5_copy_principal(krbContext, input_name->krbPrincipal,
534 &name->krbPrincipal);
536 major = GSS_S_FAILURE;
540 if (input_name->attrCtx != NULL) {
541 major = gssEapDuplicateAttrContext(minor, input_name, name);
542 if (GSS_ERROR(major))
549 if (GSS_ERROR(major)) {
550 gssEapReleaseName(&tmpMinor, &name);
557 gssEapDisplayName(OM_uint32 *minor,
559 gss_buffer_t output_name_buffer,
560 gss_OID *output_name_type)
563 krb5_context krbContext;
567 GSSEAP_KRB_INIT(&krbContext);
569 output_name_buffer->length = 0;
570 output_name_buffer->value = NULL;
572 if (name == GSS_C_NO_NAME) {
574 return GSS_S_CALL_INACCESSIBLE_READ | GSS_S_BAD_NAME;
577 *minor = krb5_unparse_name(krbContext, name->krbPrincipal, &krbName);
579 return GSS_S_FAILURE;
582 major = makeStringBuffer(minor, krbName, output_name_buffer);
583 if (GSS_ERROR(major)) {
584 krb5_free_unparsed_name(krbContext, krbName);
588 krb5_free_unparsed_name(krbContext, krbName);
590 if (KRB_PRINC_TYPE(name->krbPrincipal) == KRB5_NT_WELLKNOWN &&
591 krb5_principal_compare(krbContext,
592 name->krbPrincipal, krbAnonymousPrincipal())) {
593 name_type = GSS_C_NT_ANONYMOUS;
595 name_type = GSS_EAP_NT_PRINCIPAL_NAME;
598 if (output_name_type != NULL)
599 *output_name_type = name_type;
601 return GSS_S_COMPLETE;