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kerberos: Silence a FIXME for the GSS_S_FAILURE case.
[wine.git] / dlls / kerberos / krb5_ap.c
blob0ff6ae2738a335d5fc79d9c09926f2707c039a99
1 /*
2 * Copyright 2017 Dmitry Timoshkov
3 * Copyright 2017 George Popoff
4 * Copyright 2008 Robert Shearman for CodeWeavers
5 * Copyright 2017 Hans Leidekker for CodeWeavers
6 *
7 * Kerberos5 Authentication Package
8 *
9 * This library is free software; you can redistribute it and/or
10 * modify it under the terms of the GNU Lesser General Public
11 * License as published by the Free Software Foundation; either
12 * version 2.1 of the License, or (at your option) any later version.
13 *
14 * This library is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
17 * Lesser General Public License for more details.
18 *
19 * You should have received a copy of the GNU Lesser General Public
20 * License along with this library; if not, write to the Free Software
21 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
22 */
23
24 #include "config.h"
25 #include "wine/port.h"
26
27 #include <stdarg.h>
28 #ifdef HAVE_KRB5_KRB5_H
29 #include <krb5/krb5.h>
30 #endif
31 #ifdef SONAME_LIBGSSAPI_KRB5
32 # include <gssapi/gssapi.h>
33 # include <gssapi/gssapi_ext.h>
34 #endif
35
36 #include "ntstatus.h"
37 #define WIN32_NO_STATUS
38 #include "windef.h"
39 #include "winbase.h"
40 #include "winnls.h"
41 #include "rpc.h"
42 #include "sspi.h"
43 #include "ntsecapi.h"
44 #include "ntsecpkg.h"
45 #include "winternl.h"
46 #include "wine/heap.h"
47 #include "wine/library.h"
48 #include "wine/debug.h"
49 #include "wine/unicode.h"
50
51 WINE_DEFAULT_DEBUG_CHANNEL(kerberos);
52
53 #define KERBEROS_MAX_BUF 12000
54
55 #define KERBEROS_CAPS \
56 ( SECPKG_FLAG_INTEGRITY \
57 | SECPKG_FLAG_PRIVACY \
58 | SECPKG_FLAG_TOKEN_ONLY \
59 | SECPKG_FLAG_DATAGRAM \
60 | SECPKG_FLAG_CONNECTION \
61 | SECPKG_FLAG_MULTI_REQUIRED \
62 | SECPKG_FLAG_EXTENDED_ERROR \
63 | SECPKG_FLAG_IMPERSONATION \
64 | SECPKG_FLAG_ACCEPT_WIN32_NAME \
65 | SECPKG_FLAG_NEGOTIABLE \
66 | SECPKG_FLAG_GSS_COMPATIBLE \
67 | SECPKG_FLAG_LOGON \
68 | SECPKG_FLAG_MUTUAL_AUTH \
69 | SECPKG_FLAG_DELEGATION \
70 | SECPKG_FLAG_READONLY_WITH_CHECKSUM \
71 | SECPKG_FLAG_RESTRICTED_TOKENS \
72 | SECPKG_FLAG_APPCONTAINER_CHECKS)
73
74 static WCHAR kerberos_name_W[] = {'K','e','r','b','e','r','o','s',0};
75 static WCHAR kerberos_comment_W[] = {'M','i','c','r','o','s','o','f','t',' ','K','e','r','b','e','r','o','s',' ','V','1','.','0',0};
76 static const SecPkgInfoW infoW =
77 {
78 KERBEROS_CAPS,
79 1,
80 RPC_C_AUTHN_GSS_KERBEROS,
81 KERBEROS_MAX_BUF,
82 kerberos_name_W,
83 kerberos_comment_W
84 };
85
86 static ULONG kerberos_package_id;
87 static LSA_DISPATCH_TABLE lsa_dispatch;
88
89 #ifdef SONAME_LIBKRB5
90
91 static void *libkrb5_handle;
92
93 #define MAKE_FUNCPTR(f) static typeof(f) * p_##f
94 MAKE_FUNCPTR(krb5_cc_close);
95 MAKE_FUNCPTR(krb5_cc_default);
96 MAKE_FUNCPTR(krb5_cc_end_seq_get);
97 MAKE_FUNCPTR(krb5_cc_initialize);
98 MAKE_FUNCPTR(krb5_cc_next_cred);
99 MAKE_FUNCPTR(krb5_cc_start_seq_get);
100 MAKE_FUNCPTR(krb5_cc_store_cred);
101 MAKE_FUNCPTR(krb5_cccol_cursor_free);
102 MAKE_FUNCPTR(krb5_cccol_cursor_new);
103 MAKE_FUNCPTR(krb5_cccol_cursor_next);
104 MAKE_FUNCPTR(krb5_decode_ticket);
105 MAKE_FUNCPTR(krb5_free_context);
106 MAKE_FUNCPTR(krb5_free_cred_contents);
107 MAKE_FUNCPTR(krb5_free_principal);
108 MAKE_FUNCPTR(krb5_free_ticket);
109 MAKE_FUNCPTR(krb5_free_unparsed_name);
110 MAKE_FUNCPTR(krb5_get_init_creds_opt_alloc);
111 MAKE_FUNCPTR(krb5_get_init_creds_opt_free);
112 MAKE_FUNCPTR(krb5_get_init_creds_opt_set_out_ccache);
113 MAKE_FUNCPTR(krb5_get_init_creds_password);
114 MAKE_FUNCPTR(krb5_init_context);
115 MAKE_FUNCPTR(krb5_is_config_principal);
116 MAKE_FUNCPTR(krb5_parse_name_flags);
117 MAKE_FUNCPTR(krb5_unparse_name_flags);
118 #undef MAKE_FUNCPTR
119
120 static void load_krb5(void)
121 {
122 if (!(libkrb5_handle = wine_dlopen(SONAME_LIBKRB5, RTLD_NOW, NULL, 0)))
123 {
124 WARN("Failed to load %s, Kerberos support will be disabled\n", SONAME_LIBKRB5);
125 return;
126 }
127
128 #define LOAD_FUNCPTR(f) \
129 if (!(p_##f = wine_dlsym(libkrb5_handle, #f, NULL, 0))) \
130 { \
131 ERR("Failed to load %s\n", #f); \
132 goto fail; \
133 }
134
135 LOAD_FUNCPTR(krb5_cc_close)
136 LOAD_FUNCPTR(krb5_cc_default)
137 LOAD_FUNCPTR(krb5_cc_end_seq_get)
138 LOAD_FUNCPTR(krb5_cc_initialize)
139 LOAD_FUNCPTR(krb5_cc_next_cred)
140 LOAD_FUNCPTR(krb5_cc_start_seq_get)
141 LOAD_FUNCPTR(krb5_cc_store_cred)
142 LOAD_FUNCPTR(krb5_cccol_cursor_free)
143 LOAD_FUNCPTR(krb5_cccol_cursor_new)
144 LOAD_FUNCPTR(krb5_cccol_cursor_next)
145 LOAD_FUNCPTR(krb5_decode_ticket)
146 LOAD_FUNCPTR(krb5_free_context)
147 LOAD_FUNCPTR(krb5_free_cred_contents)
148 LOAD_FUNCPTR(krb5_free_principal)
149 LOAD_FUNCPTR(krb5_free_ticket)
150 LOAD_FUNCPTR(krb5_free_unparsed_name)
151 LOAD_FUNCPTR(krb5_get_init_creds_opt_alloc)
152 LOAD_FUNCPTR(krb5_get_init_creds_opt_free)
153 LOAD_FUNCPTR(krb5_get_init_creds_opt_set_out_ccache)
154 LOAD_FUNCPTR(krb5_get_init_creds_password)
155 LOAD_FUNCPTR(krb5_init_context)
156 LOAD_FUNCPTR(krb5_is_config_principal)
157 LOAD_FUNCPTR(krb5_parse_name_flags)
158 LOAD_FUNCPTR(krb5_unparse_name_flags)
159 #undef LOAD_FUNCPTR
160
161 return;
162
163 fail:
164 wine_dlclose(libkrb5_handle, NULL, 0);
165 libkrb5_handle = NULL;
166 }
167
168 #else /* SONAME_LIBKRB5 */
169
170 static void load_krb5(void)
171 {
172 WARN("Kerberos support was not provided at compile time\n");
173 }
174
175 #endif /* SONAME_LIBKRB5 */
176
177 static const char *debugstr_us( const UNICODE_STRING *us )
178 {
179 if (!us) return "<null>";
180 return debugstr_wn( us->Buffer, us->Length / sizeof(WCHAR) );
181 }
182
183 static NTSTATUS NTAPI kerberos_LsaApInitializePackage(ULONG package_id, PLSA_DISPATCH_TABLE dispatch,
184 PLSA_STRING database, PLSA_STRING confidentiality, PLSA_STRING *package_name)
185 {
186 char *kerberos_name;
187
188 load_krb5();
189
190 kerberos_package_id = package_id;
191 lsa_dispatch = *dispatch;
192
193 kerberos_name = lsa_dispatch.AllocateLsaHeap(sizeof(MICROSOFT_KERBEROS_NAME_A));
194 if (!kerberos_name) return STATUS_NO_MEMORY;
195
196 memcpy(kerberos_name, MICROSOFT_KERBEROS_NAME_A, sizeof(MICROSOFT_KERBEROS_NAME_A));
197
198 *package_name = lsa_dispatch.AllocateLsaHeap(sizeof(**package_name));
199 if (!*package_name)
200 {
201 lsa_dispatch.FreeLsaHeap(kerberos_name);
202 return STATUS_NO_MEMORY;
203 }
204
205 RtlInitString(*package_name, kerberos_name);
206
207 return STATUS_SUCCESS;
208 }
209
210 #ifdef SONAME_LIBKRB5
211
212 struct ticket_info
213 {
214 ULONG count, allocated;
215 KERB_TICKET_CACHE_INFO *info;
216 };
217
218 static NTSTATUS krb5_error_to_status(krb5_error_code error)
219 {
220 switch (error)
221 {
222 case 0: return STATUS_SUCCESS;
223 default:
224 /* FIXME */
225 return STATUS_UNSUCCESSFUL;
226 }
227 }
228
229 static void free_ticket_info(struct ticket_info *info)
230 {
231 ULONG i;
232
233 for (i = 0; i < info->count; i++)
234 {
235 heap_free(info->info[i].RealmName.Buffer);
236 heap_free(info->info[i].ServerName.Buffer);
237 }
238
239 heap_free(info->info);
240 }
241
242 static WCHAR *utf8_to_wstr(const char *utf8)
243 {
244 int len;
245 WCHAR *wstr;
246
247 len = MultiByteToWideChar(CP_UTF8, 0, utf8, -1, NULL, 0);
248 wstr = heap_alloc(len * sizeof(WCHAR));
249 if (wstr)
250 MultiByteToWideChar(CP_UTF8, 0, utf8, -1, wstr, len);
251
252 return wstr;
253 }
254
255 static NTSTATUS copy_tickets_from_cache(krb5_context context, krb5_ccache cache, struct ticket_info *info)
256 {
257 NTSTATUS status;
258 krb5_cc_cursor cursor;
259 krb5_error_code error;
260 krb5_creds credentials;
261 krb5_ticket *ticket;
262 char *name_with_realm, *name_without_realm, *realm_name;
263 WCHAR *realm_nameW, *name_without_realmW;
264
265 error = p_krb5_cc_start_seq_get(context, cache, &cursor);
266 if (error) return krb5_error_to_status(error);
267
268 for (;;)
269 {
270 error = p_krb5_cc_next_cred(context, cache, &cursor, &credentials);
271 if (error)
272 {
273 if (error == KRB5_CC_END)
274 status = STATUS_SUCCESS;
275 else
276 status = krb5_error_to_status(error);
277 break;
278 }
279
280 if (p_krb5_is_config_principal(context, credentials.server))
281 {
282 p_krb5_free_cred_contents(context, &credentials);
283 continue;
284 }
285
286 if (info->count == info->allocated)
287 {
288 KERB_TICKET_CACHE_INFO *new_info;
289 ULONG new_allocated;
290
291 if (info->allocated)
292 {
293 new_allocated = info->allocated * 2;
294 new_info = heap_realloc(info->info, sizeof(*new_info) * new_allocated);
295 }
296 else
297 {
298 new_allocated = 16;
299 new_info = heap_alloc(sizeof(*new_info) * new_allocated);
300 }
301 if (!new_info)
302 {
303 p_krb5_free_cred_contents(context, &credentials);
304 status = STATUS_NO_MEMORY;
305 break;
306 }
307
308 info->info = new_info;
309 info->allocated = new_allocated;
310 }
311
312 error = p_krb5_unparse_name_flags(context, credentials.server, 0, &name_with_realm);
313 if (error)
314 {
315 p_krb5_free_cred_contents(context, &credentials);
316 status = krb5_error_to_status(error);
317 break;
318 }
319
320 TRACE("name_with_realm: %s\n", debugstr_a(name_with_realm));
321
322 error = p_krb5_unparse_name_flags(context, credentials.server,
323 KRB5_PRINCIPAL_UNPARSE_NO_REALM, &name_without_realm);
324 if (error)
325 {
326 p_krb5_free_unparsed_name(context, name_with_realm);
327 p_krb5_free_cred_contents(context, &credentials);
328 status = krb5_error_to_status(error);
329 break;
330 }
331
332 TRACE("name_without_realm: %s\n", debugstr_a(name_without_realm));
333
334 name_without_realmW = utf8_to_wstr(name_without_realm);
335 RtlInitUnicodeString(&info->info[info->count].ServerName, name_without_realmW);
336
337 realm_name = strchr(name_with_realm, '@');
338 if (!realm_name)
339 {
340 ERR("wrong name with realm %s\n", debugstr_a(name_with_realm));
341 realm_name = name_with_realm;
342 }
343 else
344 realm_name++;
345
346 /* realm_name - now contains only realm! */
347
348 realm_nameW = utf8_to_wstr(realm_name);
349 RtlInitUnicodeString(&info->info[info->count].RealmName, realm_nameW);
350
351 if (!credentials.times.starttime)
352 credentials.times.starttime = credentials.times.authtime;
353
354 /* TODO: if krb5_is_config_principal = true */
355 RtlSecondsSince1970ToTime(credentials.times.starttime, &info->info[info->count].StartTime);
356 RtlSecondsSince1970ToTime(credentials.times.endtime, &info->info[info->count].EndTime);
357 RtlSecondsSince1970ToTime(credentials.times.renew_till, &info->info[info->count].RenewTime);
358
359 info->info[info->count].TicketFlags = credentials.ticket_flags;
360
361 error = p_krb5_decode_ticket(&credentials.ticket, &ticket);
362
363 p_krb5_free_unparsed_name(context, name_with_realm);
364 p_krb5_free_unparsed_name(context, name_without_realm);
365 p_krb5_free_cred_contents(context, &credentials);
366
367 if (error)
368 {
369 status = krb5_error_to_status(error);
370 break;
371 }
372
373 info->info[info->count].EncryptionType = ticket->enc_part.enctype;
374
375 p_krb5_free_ticket(context, ticket);
376
377 info->count++;
378 }
379
380 p_krb5_cc_end_seq_get(context, cache, &cursor);
381
382 return status;
383 }
384
385 static inline void init_client_us(UNICODE_STRING *dst, void *client_ws, const UNICODE_STRING *src)
386 {
387 dst->Buffer = client_ws;
388 dst->Length = src->Length;
389 dst->MaximumLength = src->MaximumLength;
390 }
391
392 static NTSTATUS copy_to_client(PLSA_CLIENT_REQUEST lsa_req, struct ticket_info *info, void **out, ULONG *out_size)
393 {
394 NTSTATUS status;
395 ULONG i;
396 SIZE_T size, client_str_off;
397 char *client_resp, *client_ticket, *client_str;
398 KERB_QUERY_TKT_CACHE_RESPONSE resp;
399
400 size = sizeof(KERB_QUERY_TKT_CACHE_RESPONSE);
401 if (info->count != 0)
402 size += (info->count - 1) * sizeof(KERB_TICKET_CACHE_INFO);
403
404 client_str_off = size;
405
406 for (i = 0; i < info->count; i++)
407 {
408 size += info->info[i].RealmName.MaximumLength;
409 size += info->info[i].ServerName.MaximumLength;
410 }
411
412 status = lsa_dispatch.AllocateClientBuffer(lsa_req, size, (void **)&client_resp);
413 if (status != STATUS_SUCCESS) return status;
414
415 resp.MessageType = KerbQueryTicketCacheMessage;
416 resp.CountOfTickets = info->count;
417 size = FIELD_OFFSET(KERB_QUERY_TKT_CACHE_RESPONSE, Tickets);
418 status = lsa_dispatch.CopyToClientBuffer(lsa_req, size, client_resp, &resp);
419 if (status != STATUS_SUCCESS) goto fail;
420
421 if (!info->count)
422 {
423 *out = client_resp;
424 *out_size = sizeof(resp);
425 return STATUS_SUCCESS;
426 }
427
428 *out_size = size;
429
430 client_ticket = client_resp + size;
431 client_str = client_resp + client_str_off;
432
433 for (i = 0; i < info->count; i++)
434 {
435 KERB_TICKET_CACHE_INFO ticket;
436
437 ticket = info->info[i];
438
439 init_client_us(&ticket.RealmName, client_str, &info->info[i].RealmName);
440
441 size = info->info[i].RealmName.MaximumLength;
442 status = lsa_dispatch.CopyToClientBuffer(lsa_req, size, client_str, info->info[i].RealmName.Buffer);
443 if (status != STATUS_SUCCESS) goto fail;
444 client_str += size;
445 *out_size += size;
446
447 init_client_us(&ticket.ServerName, client_str, &info->info[i].ServerName);
448
449 size = info->info[i].ServerName.MaximumLength;
450 status = lsa_dispatch.CopyToClientBuffer(lsa_req, size, client_str, info->info[i].ServerName.Buffer);
451 if (status != STATUS_SUCCESS) goto fail;
452 client_str += size;
453 *out_size += size;
454
455 status = lsa_dispatch.CopyToClientBuffer(lsa_req, sizeof(ticket), client_ticket, &ticket);
456 if (status != STATUS_SUCCESS) goto fail;
457
458 client_ticket += sizeof(ticket);
459 *out_size += sizeof(ticket);
460 }
461
462 *out = client_resp;
463 return STATUS_SUCCESS;
464
465 fail:
466 lsa_dispatch.FreeClientBuffer(lsa_req, client_resp);
467 return status;
468 }
469
470 static NTSTATUS query_ticket_cache(PLSA_CLIENT_REQUEST lsa_req, void *in, ULONG in_len, void **out, ULONG *out_len)
471 {
472 NTSTATUS status;
473 KERB_QUERY_TKT_CACHE_REQUEST *query;
474 struct ticket_info info;
475 krb5_error_code error;
476 krb5_context context = NULL;
477 krb5_cccol_cursor cursor = NULL;
478 krb5_ccache cache;
479
480 if (!in || in_len != sizeof(KERB_QUERY_TKT_CACHE_REQUEST) || !out || !out_len)
481 return STATUS_INVALID_PARAMETER;
482
483 query = (KERB_QUERY_TKT_CACHE_REQUEST *)in;
484
485 if (query->LogonId.HighPart != 0 || query->LogonId.LowPart != 0)
486 return STATUS_ACCESS_DENIED;
487
488 info.count = 0;
489 info.allocated = 0;
490 info.info = NULL;
491
492 error = p_krb5_init_context(&context);
493 if (error)
494 {
495 status = krb5_error_to_status(error);
496 goto done;
497 }
498
499 error = p_krb5_cccol_cursor_new(context, &cursor);
500 if (error)
501 {
502 status = krb5_error_to_status(error);
503 goto done;
504 }
505
506 for (;;)
507 {
508 error = p_krb5_cccol_cursor_next(context, cursor, &cache);
509 if (error)
510 {
511 status = krb5_error_to_status(error);
512 goto done;
513 }
514 if (!cache) break;
515
516 status = copy_tickets_from_cache(context, cache, &info);
517
518 p_krb5_cc_close(context, cache);
519
520 if (status != STATUS_SUCCESS)
521 goto done;
522 }
523
524 status = copy_to_client(lsa_req, &info, out, out_len);
525
526 done:
527 if (cursor)
528 p_krb5_cccol_cursor_free(context, &cursor);
529
530 if (context)
531 p_krb5_free_context(context);
532
533 free_ticket_info(&info);
534
535 return status;
536 }
537
538 #else /* SONAME_LIBKRB5 */
539
540 static NTSTATUS query_ticket_cache(PLSA_CLIENT_REQUEST lsa_req, void *in, ULONG in_len, void **out, ULONG *out_len)
541 {
542 FIXME("%p,%p,%u,%p,%p: stub\n", lsa_req, in, in_len, out, out_len);
543 return STATUS_NOT_IMPLEMENTED;
544 }
545
546 #endif /* SONAME_LIBKRB5 */
547
548 static NTSTATUS NTAPI kerberos_LsaApCallPackageUntrusted(PLSA_CLIENT_REQUEST request,
549 PVOID in_buffer, PVOID client_buffer_base, ULONG in_buffer_length,
550 PVOID *out_buffer, PULONG out_buffer_length, PNTSTATUS status)
551 {
552 KERB_PROTOCOL_MESSAGE_TYPE msg;
553
554 TRACE("%p,%p,%p,%u,%p,%p,%p\n", request, in_buffer, client_buffer_base,
555 in_buffer_length, out_buffer, out_buffer_length, status);
556
557 if (!in_buffer || in_buffer_length < sizeof(msg))
558 return STATUS_INVALID_PARAMETER;
559
560 msg = *(KERB_PROTOCOL_MESSAGE_TYPE *)in_buffer;
561
562 switch (msg)
563 {
564 case KerbQueryTicketCacheMessage:
565 *status = query_ticket_cache(request, in_buffer, in_buffer_length, out_buffer, out_buffer_length);
566 break;
567
568 case KerbRetrieveTicketMessage:
569 FIXME("KerbRetrieveTicketMessage stub\n");
570 *status = STATUS_NOT_IMPLEMENTED;
571 break;
572
573 case KerbPurgeTicketCacheMessage:
574 FIXME("KerbPurgeTicketCacheMessage stub\n");
575 *status = STATUS_NOT_IMPLEMENTED;
576 break;
577
578 default: /* All other requests should call LsaApCallPackage */
579 WARN("%u => access denied\n", msg);
580 *status = STATUS_ACCESS_DENIED;
581 break;
582 }
583
584 return *status;
585 }
586
587 static NTSTATUS NTAPI kerberos_SpGetInfo(SecPkgInfoW *info)
588 {
589 TRACE("%p\n", info);
590
591 /* LSA will make a copy before forwarding the structure, so
592 * it's safe to put pointers to dynamic or constant data there.
593 */
594 *info = infoW;
595
596 return STATUS_SUCCESS;
597 }
598
599 #ifdef SONAME_LIBGSSAPI_KRB5
600
601 WINE_DECLARE_DEBUG_CHANNEL(winediag);
602 static void *libgssapi_krb5_handle;
603
604 #define MAKE_FUNCPTR(f) static typeof(f) * p##f
605 MAKE_FUNCPTR(gss_accept_sec_context);
606 MAKE_FUNCPTR(gss_acquire_cred);
607 MAKE_FUNCPTR(gss_delete_sec_context);
608 MAKE_FUNCPTR(gss_display_status);
609 MAKE_FUNCPTR(gss_get_mic);
610 MAKE_FUNCPTR(gss_import_name);
611 MAKE_FUNCPTR(gss_init_sec_context);
612 MAKE_FUNCPTR(gss_inquire_context);
613 MAKE_FUNCPTR(gss_release_buffer);
614 MAKE_FUNCPTR(gss_release_cred);
615 MAKE_FUNCPTR(gss_release_iov_buffer);
616 MAKE_FUNCPTR(gss_release_name);
617 MAKE_FUNCPTR(gss_unwrap);
618 MAKE_FUNCPTR(gss_unwrap_iov);
619 MAKE_FUNCPTR(gss_verify_mic);
620 MAKE_FUNCPTR(gss_wrap);
621 MAKE_FUNCPTR(gss_wrap_iov);
622 #undef MAKE_FUNCPTR
623
624 static BOOL load_gssapi_krb5(void)
625 {
626 if (!(libgssapi_krb5_handle = wine_dlopen( SONAME_LIBGSSAPI_KRB5, RTLD_NOW, NULL, 0 )))
627 {
628 ERR_(winediag)( "Failed to load libgssapi_krb5, Kerberos SSP support will not be available.\n" );
629 return FALSE;
630 }
631
632 #define LOAD_FUNCPTR(f) \
633 if (!(p##f = wine_dlsym( libgssapi_krb5_handle, #f, NULL, 0 ))) \
634 { \
635 ERR( "Failed to load %s\n", #f ); \
636 goto fail; \
637 }
638
639 LOAD_FUNCPTR(gss_accept_sec_context)
640 LOAD_FUNCPTR(gss_acquire_cred)
641 LOAD_FUNCPTR(gss_delete_sec_context)
642 LOAD_FUNCPTR(gss_display_status)
643 LOAD_FUNCPTR(gss_get_mic)
644 LOAD_FUNCPTR(gss_import_name)
645 LOAD_FUNCPTR(gss_init_sec_context)
646 LOAD_FUNCPTR(gss_inquire_context)
647 LOAD_FUNCPTR(gss_release_buffer)
648 LOAD_FUNCPTR(gss_release_cred)
649 LOAD_FUNCPTR(gss_release_iov_buffer)
650 LOAD_FUNCPTR(gss_release_name)
651 LOAD_FUNCPTR(gss_unwrap)
652 LOAD_FUNCPTR(gss_unwrap_iov)
653 LOAD_FUNCPTR(gss_verify_mic)
654 LOAD_FUNCPTR(gss_wrap)
655 LOAD_FUNCPTR(gss_wrap_iov)
656 #undef LOAD_FUNCPTR
657
658 return TRUE;
659
660 fail:
661 wine_dlclose( libgssapi_krb5_handle, NULL, 0 );
662 libgssapi_krb5_handle = NULL;
663 return FALSE;
664 }
665
666 static void unload_gssapi_krb5(void)
667 {
668 wine_dlclose( libgssapi_krb5_handle, NULL, 0 );
669 libgssapi_krb5_handle = NULL;
670 }
671
672 static inline gss_cred_id_t credhandle_sspi_to_gss( LSA_SEC_HANDLE cred )
673 {
674 if (!cred) return GSS_C_NO_CREDENTIAL;
675 return (gss_cred_id_t)cred;
676 }
677
678 static inline void credhandle_gss_to_sspi( gss_cred_id_t handle, LSA_SEC_HANDLE *cred )
679 {
680 *cred = (LSA_SEC_HANDLE)handle;
681 }
682
683 static inline gss_ctx_id_t ctxthandle_sspi_to_gss( LSA_SEC_HANDLE ctxt )
684 {
685 if (!ctxt) return GSS_C_NO_CONTEXT;
686 return (gss_ctx_id_t)ctxt;
687 }
688
689 static inline void ctxthandle_gss_to_sspi( gss_ctx_id_t handle, LSA_SEC_HANDLE *ctxt )
690 {
691 *ctxt = (LSA_SEC_HANDLE)handle;
692 }
693
694 static NTSTATUS status_gss_to_sspi( OM_uint32 status )
695 {
696 switch (status)
697 {
698 case GSS_S_COMPLETE: return SEC_E_OK;
699 case GSS_S_BAD_MECH: return SEC_E_SECPKG_NOT_FOUND;
700 case GSS_S_BAD_SIG: return SEC_E_MESSAGE_ALTERED;
701 case GSS_S_NO_CRED: return SEC_E_NO_CREDENTIALS;
702 case GSS_S_NO_CONTEXT: return SEC_E_INVALID_HANDLE;
703 case GSS_S_DEFECTIVE_TOKEN: return SEC_E_INVALID_TOKEN;
704 case GSS_S_DEFECTIVE_CREDENTIAL: return SEC_E_NO_CREDENTIALS;
705 case GSS_S_CREDENTIALS_EXPIRED: return SEC_E_CONTEXT_EXPIRED;
706 case GSS_S_CONTEXT_EXPIRED: return SEC_E_CONTEXT_EXPIRED;
707 case GSS_S_BAD_QOP: return SEC_E_QOP_NOT_SUPPORTED;
708 case GSS_S_CONTINUE_NEEDED: return SEC_I_CONTINUE_NEEDED;
709 case GSS_S_DUPLICATE_TOKEN: return SEC_E_INVALID_TOKEN;
710 case GSS_S_OLD_TOKEN: return SEC_E_INVALID_TOKEN;
711 case GSS_S_UNSEQ_TOKEN: return SEC_E_OUT_OF_SEQUENCE;
712 case GSS_S_GAP_TOKEN: return SEC_E_OUT_OF_SEQUENCE;
713 case GSS_S_FAILURE: return SEC_E_INTERNAL_ERROR;
714
715 default:
716 FIXME( "couldn't convert status 0x%08x to NTSTATUS\n", status );
717 return SEC_E_INTERNAL_ERROR;
718 }
719 }
720
721 static void trace_gss_status_ex( OM_uint32 code, int type )
722 {
723 OM_uint32 ret, minor_status;
724 gss_buffer_desc buf;
725 OM_uint32 message_context = 0;
726
727 for (;;)
728 {
729 ret = pgss_display_status( &minor_status, code, type, GSS_C_NULL_OID, &message_context, &buf );
730 if (GSS_ERROR(ret))
731 {
732 TRACE( "gss_display_status(0x%08x,%d) returned %08x minor status %08x\n",
733 code, type, ret, minor_status );
734 return;
735 }
736 TRACE( "GSS-API error: 0x%08x: %s\n", code, debugstr_an(buf.value, buf.length) );
737 pgss_release_buffer( &minor_status, &buf );
738
739 if (!message_context) return;
740 }
741 }
742
743 static void trace_gss_status( OM_uint32 major_status, OM_uint32 minor_status )
744 {
745 if (TRACE_ON(kerberos))
746 {
747 trace_gss_status_ex( major_status, GSS_C_GSS_CODE );
748 trace_gss_status_ex( minor_status, GSS_C_MECH_CODE );
749 }
750 }
751
752 static void expirytime_gss_to_sspi( OM_uint32 expirytime, TimeStamp *timestamp )
753 {
754 SYSTEMTIME time;
755 FILETIME filetime;
756 ULARGE_INTEGER tmp;
757
758 GetLocalTime( &time );
759 SystemTimeToFileTime( &time, &filetime );
760 tmp.QuadPart = ((ULONGLONG)filetime.dwLowDateTime | (ULONGLONG)filetime.dwHighDateTime << 32) + expirytime;
761 timestamp->LowPart = tmp.QuadPart;
762 timestamp->HighPart = tmp.QuadPart >> 32;
763 }
764
765 static NTSTATUS name_sspi_to_gss( const UNICODE_STRING *name_str, gss_name_t *name )
766 {
767 OM_uint32 ret, minor_status;
768 gss_OID type = GSS_C_NO_OID; /* FIXME: detect the appropriate value for this ourselves? */
769 gss_buffer_desc buf;
770
771 buf.length = WideCharToMultiByte( CP_UNIXCP, 0, name_str->Buffer, name_str->Length / sizeof(WCHAR), NULL, 0, NULL, NULL );
772 if (!(buf.value = heap_alloc( buf.length ))) return SEC_E_INSUFFICIENT_MEMORY;
773 WideCharToMultiByte( CP_UNIXCP, 0, name_str->Buffer, name_str->Length / sizeof(WCHAR), buf.value, buf.length, NULL, NULL );
774
775 ret = pgss_import_name( &minor_status, &buf, type, name );
776 TRACE( "gss_import_name returned %08x minor status %08x\n", ret, minor_status );
777 if (GSS_ERROR(ret)) trace_gss_status( ret, minor_status );
778
779 heap_free( buf.value );
780 return status_gss_to_sspi( ret );
781 }
782
783 static ULONG flags_isc_req_to_gss( ULONG flags )
784 {
785 ULONG ret = 0;
786 if (flags & ISC_REQ_DELEGATE) ret |= GSS_C_DELEG_FLAG;
787 if (flags & ISC_REQ_MUTUAL_AUTH) ret |= GSS_C_MUTUAL_FLAG;
788 if (flags & ISC_REQ_REPLAY_DETECT) ret |= GSS_C_REPLAY_FLAG;
789 if (flags & ISC_REQ_SEQUENCE_DETECT) ret |= GSS_C_SEQUENCE_FLAG;
790 if (flags & ISC_REQ_CONFIDENTIALITY) ret |= GSS_C_CONF_FLAG;
791 if (flags & ISC_REQ_INTEGRITY) ret |= GSS_C_INTEG_FLAG;
792 if (flags & ISC_REQ_NULL_SESSION) ret |= GSS_C_ANON_FLAG;
793 if (flags & ISC_REQ_USE_DCE_STYLE) ret |= GSS_C_DCE_STYLE;
794 return ret;
795 }
796
797 static ULONG flags_gss_to_isc_ret( ULONG flags )
798 {
799 ULONG ret = 0;
800 if (flags & GSS_C_DELEG_FLAG) ret |= ISC_RET_DELEGATE;
801 if (flags & GSS_C_MUTUAL_FLAG) ret |= ISC_RET_MUTUAL_AUTH;
802 if (flags & GSS_C_REPLAY_FLAG) ret |= ISC_RET_REPLAY_DETECT;
803 if (flags & GSS_C_SEQUENCE_FLAG) ret |= ISC_RET_SEQUENCE_DETECT;
804 if (flags & GSS_C_CONF_FLAG) ret |= ISC_RET_CONFIDENTIALITY;
805 if (flags & GSS_C_INTEG_FLAG) ret |= ISC_RET_INTEGRITY;
806 if (flags & GSS_C_ANON_FLAG) ret |= ISC_RET_NULL_SESSION;
807 return ret;
808 }
809
810 static ULONG flags_gss_to_asc_ret( ULONG flags )
811 {
812 ULONG ret = 0;
813 if (flags & GSS_C_DELEG_FLAG) ret |= ASC_RET_DELEGATE;
814 if (flags & GSS_C_MUTUAL_FLAG) ret |= ASC_RET_MUTUAL_AUTH;
815 if (flags & GSS_C_REPLAY_FLAG) ret |= ASC_RET_REPLAY_DETECT;
816 if (flags & GSS_C_SEQUENCE_FLAG) ret |= ASC_RET_SEQUENCE_DETECT;
817 if (flags & GSS_C_CONF_FLAG) ret |= ASC_RET_CONFIDENTIALITY;
818 if (flags & GSS_C_INTEG_FLAG) ret |= ASC_RET_INTEGRITY;
819 if (flags & GSS_C_ANON_FLAG) ret |= ASC_RET_NULL_SESSION;
820 return ret;
821 }
822
823 static BOOL is_dce_style_context( gss_ctx_id_t ctxt_handle )
824 {
825 OM_uint32 ret, minor_status, flags;
826 ret = pgss_inquire_context( &minor_status, ctxt_handle, NULL, NULL, NULL, NULL, &flags, NULL, NULL );
827 return (ret == GSS_S_COMPLETE && (flags & GSS_C_DCE_STYLE));
828 }
829
830 static int get_buffer_index( SecBufferDesc *desc, DWORD type )
831 {
832 UINT i;
833 if (!desc) return -1;
834 for (i = 0; i < desc->cBuffers; i++)
835 {
836 if (desc->pBuffers[i].BufferType == type) return i;
837 }
838 return -1;
839 }
840
841 static char *get_user_at_domain( const WCHAR *user, ULONG user_len, const WCHAR *domain, ULONG domain_len )
842 {
843 int len_user, len_domain;
844 char *ret;
845
846 len_user = WideCharToMultiByte( CP_UNIXCP, 0, user, user_len, NULL, 0, NULL, NULL );
847 len_domain = WideCharToMultiByte( CP_UNIXCP, 0, domain, domain_len, NULL, 0, NULL, NULL );
848 if (!(ret = heap_alloc( len_user + len_domain + 2 ))) return NULL;
849
850 WideCharToMultiByte( CP_UNIXCP, 0, user, user_len, ret, len_user, NULL, NULL );
851 ret[len_user] = '@';
852 WideCharToMultiByte( CP_UNIXCP, 0, domain, domain_len, ret + len_user + 1, len_domain, NULL, NULL );
853 ret[len_user + len_domain + 1] = 0;
854 return ret;
855 }
856
857 static char *get_password( const WCHAR *passwd, ULONG passwd_len )
858 {
859 int len;
860 char *ret;
861
862 len = WideCharToMultiByte( CP_UNIXCP, WC_NO_BEST_FIT_CHARS, passwd, passwd_len, NULL, 0, NULL, NULL );
863 if (!(ret = heap_alloc( len + 1 ))) return NULL;
864 WideCharToMultiByte( CP_UNIXCP, 0, passwd, passwd_len, ret, len, NULL, NULL );
865 ret[len] = 0;
866 return ret;
867 }
868
869 static NTSTATUS init_creds( const SEC_WINNT_AUTH_IDENTITY_W *id )
870 {
871 char *user_at_domain, *password;
872 krb5_context ctx;
873 krb5_principal principal = NULL;
874 krb5_get_init_creds_opt *options = NULL;
875 krb5_ccache cache = NULL;
876 krb5_creds creds;
877 krb5_error_code err;
878
879 if (!id) return STATUS_SUCCESS;
880 if (id->Flags & SEC_WINNT_AUTH_IDENTITY_ANSI)
881 {
882 FIXME( "ANSI identity not supported\n" );
883 return SEC_E_UNSUPPORTED_FUNCTION;
884 }
885 if (!(user_at_domain = get_user_at_domain( id->User, id->UserLength, id->Domain, id->DomainLength )))
886 {
887 return SEC_E_INSUFFICIENT_MEMORY;
888 }
889 if (!(password = get_password( id->Password, id->PasswordLength )))
890 {
891 heap_free( user_at_domain );
892 return SEC_E_INSUFFICIENT_MEMORY;
893 }
894
895 if ((err = p_krb5_init_context( &ctx )))
896 {
897 heap_free( password );
898 heap_free( user_at_domain );
899 return krb5_error_to_status( err );
900 }
901 if ((err = p_krb5_parse_name_flags( ctx, user_at_domain, 0, &principal ))) goto done;
902 if ((err = p_krb5_cc_default( ctx, &cache ))) goto done;
903 if ((err = p_krb5_get_init_creds_opt_alloc( ctx, &options ))) goto done;
904 if ((err = p_krb5_get_init_creds_opt_set_out_ccache( ctx, options, cache ))) goto done;
905 if ((err = p_krb5_get_init_creds_password( ctx, &creds, principal, password, 0, NULL, 0, NULL, 0 ))) goto done;
906 if ((err = p_krb5_cc_initialize( ctx, cache, principal ))) goto done;
907 if ((err = p_krb5_cc_store_cred( ctx, cache, &creds ))) goto done;
908
909 TRACE( "success\n" );
910 p_krb5_free_cred_contents( ctx, &creds );
911
912 done:
913 if (cache) p_krb5_cc_close( ctx, cache );
914 if (principal) p_krb5_free_principal( ctx, principal );
915 if (options) p_krb5_get_init_creds_opt_free( ctx, options );
916 p_krb5_free_context( ctx );
917 heap_free( user_at_domain );
918 heap_free( password );
919
920 return krb5_error_to_status( err );
921 }
922
923 static NTSTATUS acquire_credentials_handle( UNICODE_STRING *principal_us, gss_cred_usage_t cred_usage,
924 LSA_SEC_HANDLE *credential, TimeStamp *ts_expiry )
925 {
926 OM_uint32 ret, minor_status, expiry_time;
927 gss_name_t principal = GSS_C_NO_NAME;
928 gss_cred_id_t cred_handle;
929 NTSTATUS status;
930
931 if (principal_us && ((status = name_sspi_to_gss( principal_us, &principal )) != SEC_E_OK)) return status;
932
933 ret = pgss_acquire_cred( &minor_status, principal, GSS_C_INDEFINITE, GSS_C_NULL_OID_SET, cred_usage,
934 &cred_handle, NULL, &expiry_time );
935 TRACE( "gss_acquire_cred returned %08x minor status %08x\n", ret, minor_status );
936 if (GSS_ERROR(ret)) trace_gss_status( ret, minor_status );
937 if (ret == GSS_S_COMPLETE)
938 {
939 credhandle_gss_to_sspi( cred_handle, credential );
940 expirytime_gss_to_sspi( expiry_time, ts_expiry );
941 }
942
943 if (principal != GSS_C_NO_NAME) pgss_release_name( &minor_status, &principal );
944
945 return status_gss_to_sspi( ret );
946 }
947 #endif /* SONAME_LIBGSSAPI_KRB5 */
948
949 static NTSTATUS NTAPI kerberos_SpAcquireCredentialsHandle(
950 UNICODE_STRING *principal_us, ULONG credential_use, LUID *logon_id, void *auth_data,
951 void *get_key_fn, void *get_key_arg, LSA_SEC_HANDLE *credential, TimeStamp *ts_expiry )
952 {
953 #ifdef SONAME_LIBGSSAPI_KRB5
954 gss_cred_usage_t cred_usage;
955 NTSTATUS status;
956
957 TRACE( "(%s 0x%08x %p %p %p %p %p %p)\n", debugstr_us(principal_us), credential_use,
958 logon_id, auth_data, get_key_fn, get_key_arg, credential, ts_expiry );
959
960 switch (credential_use)
961 {
962 case SECPKG_CRED_INBOUND:
963 cred_usage = GSS_C_ACCEPT;
964 break;
965
966 case SECPKG_CRED_OUTBOUND:
967 if ((status = init_creds( auth_data )) != STATUS_SUCCESS) return status;
968 cred_usage = GSS_C_INITIATE;
969 break;
970
971 case SECPKG_CRED_BOTH:
972 cred_usage = GSS_C_BOTH;
973 break;
974
975 default:
976 return SEC_E_UNKNOWN_CREDENTIALS;
977 }
978
979 return acquire_credentials_handle( principal_us, cred_usage, credential, ts_expiry );
980 #else
981 FIXME( "(%s 0x%08x %p %p %p %p %p %p)\n", debugstr_us(principal_us), credential_use,
982 logon_id, auth_data, get_key_fn, get_key_arg, credential, ts_expiry );
983 FIXME( "Wine was built without Kerberos support.\n" );
984 return SEC_E_UNSUPPORTED_FUNCTION;
985 #endif
986 }
987
988 static NTSTATUS NTAPI kerberos_SpFreeCredentialsHandle( LSA_SEC_HANDLE credential )
989 {
990 #ifdef SONAME_LIBGSSAPI_KRB5
991 OM_uint32 ret, minor_status;
992 gss_cred_id_t cred_handle;
993
994 TRACE( "(%lx)\n", credential );
995
996 if (!credential) return SEC_E_INVALID_HANDLE;
997 if (!(cred_handle = credhandle_sspi_to_gss( credential ))) return SEC_E_OK;
998
999 ret = pgss_release_cred( &minor_status, &cred_handle );
1000 TRACE( "gss_release_cred returned %08x minor status %08x\n", ret, minor_status );
1001 if (GSS_ERROR(ret)) trace_gss_status( ret, minor_status );
1002
1003 return status_gss_to_sspi( ret );
1004 #else
1005 FIXME( "(%lx)\n", credential );
1006 return SEC_E_UNSUPPORTED_FUNCTION;
1007 #endif
1008 }
1009
1010 static NTSTATUS NTAPI kerberos_SpInitLsaModeContext( LSA_SEC_HANDLE credential, LSA_SEC_HANDLE context,
1011 UNICODE_STRING *target_name, ULONG context_req, ULONG target_data_rep, SecBufferDesc *input,
1012 LSA_SEC_HANDLE *new_context, SecBufferDesc *output, ULONG *context_attr, TimeStamp *ts_expiry,
1013 BOOLEAN *mapped_context, SecBuffer *context_data )
1014 {
1015 #ifdef SONAME_LIBGSSAPI_KRB5
1016 static const ULONG supported = ISC_REQ_CONFIDENTIALITY | ISC_REQ_INTEGRITY | ISC_REQ_SEQUENCE_DETECT |
1017 ISC_REQ_REPLAY_DETECT | ISC_REQ_MUTUAL_AUTH | ISC_REQ_USE_DCE_STYLE;
1018 OM_uint32 ret, minor_status, ret_flags = 0, expiry_time, req_flags = flags_isc_req_to_gss( context_req );
1019 gss_cred_id_t cred_handle;
1020 gss_ctx_id_t ctxt_handle;
1021 gss_buffer_desc input_token, output_token;
1022 gss_name_t target = GSS_C_NO_NAME;
1023 NTSTATUS status;
1024 int idx;
1025
1026 TRACE( "(%lx %lx %s 0x%08x %u %p %p %p %p %p %p %p)\n", credential, context, debugstr_us(target_name),
1027 context_req, target_data_rep, input, new_context, output, context_attr, ts_expiry,
1028 mapped_context, context_data );
1029 if (context_req & ~supported)
1030 FIXME( "flags 0x%08x not supported\n", context_req & ~supported );
1031
1032 if (!context && !input && !credential) return SEC_E_INVALID_HANDLE;
1033 cred_handle = credhandle_sspi_to_gss( credential );
1034 ctxt_handle = ctxthandle_sspi_to_gss( context );
1035
1036 if ((idx = get_buffer_index( input, SECBUFFER_TOKEN )) == -1) input_token.length = 0;
1037 else
1038 {
1039 input_token.length = input->pBuffers[idx].cbBuffer;
1040 input_token.value = input->pBuffers[idx].pvBuffer;
1041 }
1042
1043 if ((idx = get_buffer_index( output, SECBUFFER_TOKEN )) == -1) return SEC_E_INVALID_TOKEN;
1044 output_token.length = 0;
1045 output_token.value = NULL;
1046
1047 if (target_name && ((status = name_sspi_to_gss( target_name, &target )) != SEC_E_OK)) return status;
1048
1049 ret = pgss_init_sec_context( &minor_status, cred_handle, &ctxt_handle, target, GSS_C_NO_OID, req_flags, 0,
1050 GSS_C_NO_CHANNEL_BINDINGS, &input_token, NULL, &output_token, &ret_flags,
1051 &expiry_time );
1052 TRACE( "gss_init_sec_context returned %08x minor status %08x ret_flags %08x\n", ret, minor_status, ret_flags );
1053 if (GSS_ERROR(ret)) trace_gss_status( ret, minor_status );
1054 if (ret == GSS_S_COMPLETE || ret == GSS_S_CONTINUE_NEEDED)
1055 {
1056 if (output_token.length > output->pBuffers[idx].cbBuffer) /* FIXME: check if larger buffer exists */
1057 {
1058 TRACE( "buffer too small %lu > %u\n", (SIZE_T)output_token.length, output->pBuffers[idx].cbBuffer );
1059 pgss_release_buffer( &minor_status, &output_token );
1060 pgss_delete_sec_context( &minor_status, &ctxt_handle, GSS_C_NO_BUFFER );
1061 return SEC_E_INCOMPLETE_MESSAGE;
1062 }
1063 output->pBuffers[idx].cbBuffer = output_token.length;
1064 memcpy( output->pBuffers[idx].pvBuffer, output_token.value, output_token.length );
1065 pgss_release_buffer( &minor_status, &output_token );
1066
1067 ctxthandle_gss_to_sspi( ctxt_handle, new_context );
1068 if (context_attr) *context_attr = flags_gss_to_isc_ret( ret_flags );
1069 expirytime_gss_to_sspi( expiry_time, ts_expiry );
1070 }
1071
1072 if (target != GSS_C_NO_NAME) pgss_release_name( &minor_status, &target );
1073
1074 /* we do support user mode SSP/AP functions */
1075 *mapped_context = TRUE;
1076 /* FIXME: initialize context_data */
1077
1078 return status_gss_to_sspi( ret );
1079 #else
1080 FIXME( "(%lx %lx %s 0x%08x %u %p %p %p %p %p %p %p)\n", credential, context, debugstr_us(target_name),
1081 context_req, target_data_rep, input, new_context, output, context_attr, ts_expiry,
1082 mapped_context, context_data );
1083 return SEC_E_UNSUPPORTED_FUNCTION;
1084 #endif
1085 }
1086
1087 static NTSTATUS NTAPI kerberos_SpAcceptLsaModeContext( LSA_SEC_HANDLE credential, LSA_SEC_HANDLE context,
1088 SecBufferDesc *input, ULONG context_req, ULONG target_data_rep, LSA_SEC_HANDLE *new_context,
1089 SecBufferDesc *output, ULONG *context_attr, TimeStamp *ts_expiry, BOOLEAN *mapped_context, SecBuffer *context_data )
1090 {
1091 #ifdef SONAME_LIBGSSAPI_KRB5
1092 OM_uint32 ret, minor_status, ret_flags = 0, expiry_time;
1093 gss_cred_id_t cred_handle;
1094 gss_ctx_id_t ctxt_handle;
1095 gss_buffer_desc input_token, output_token;
1096 gss_name_t target = GSS_C_NO_NAME;
1097 int idx;
1098
1099 TRACE( "(%lx %lx 0x%08x %u %p %p %p %p %p %p %p)\n", credential, context, context_req,
1100 target_data_rep, input, new_context, output, context_attr, ts_expiry,
1101 mapped_context, context_data );
1102 if (context_req) FIXME( "ignoring flags 0x%08x\n", context_req );
1103
1104 if (!context && !input && !credential) return SEC_E_INVALID_HANDLE;
1105 cred_handle = credhandle_sspi_to_gss( credential );
1106 ctxt_handle = ctxthandle_sspi_to_gss( context );
1107
1108 if (!input) input_token.length = 0;
1109 else
1110 {
1111 if ((idx = get_buffer_index( input, SECBUFFER_TOKEN )) == -1) return SEC_E_INVALID_TOKEN;
1112 input_token.length = input->pBuffers[idx].cbBuffer;
1113 input_token.value = input->pBuffers[idx].pvBuffer;
1114 }
1115
1116 if ((idx = get_buffer_index( output, SECBUFFER_TOKEN )) == -1) return SEC_E_INVALID_TOKEN;
1117 output_token.length = 0;
1118 output_token.value = NULL;
1119
1120 ret = pgss_accept_sec_context( &minor_status, &ctxt_handle, cred_handle, &input_token, GSS_C_NO_CHANNEL_BINDINGS,
1121 &target, NULL, &output_token, &ret_flags, &expiry_time, NULL );
1122 TRACE( "gss_accept_sec_context returned %08x minor status %08x ret_flags %08x\n", ret, minor_status, ret_flags );
1123 if (GSS_ERROR(ret)) trace_gss_status( ret, minor_status );
1124 if (ret == GSS_S_COMPLETE || ret == GSS_S_CONTINUE_NEEDED)
1125 {
1126 if (output_token.length > output->pBuffers[idx].cbBuffer) /* FIXME: check if larger buffer exists */
1127 {
1128 TRACE( "buffer too small %lu > %u\n", (SIZE_T)output_token.length, output->pBuffers[idx].cbBuffer );
1129 pgss_release_buffer( &minor_status, &output_token );
1130 pgss_delete_sec_context( &minor_status, &ctxt_handle, GSS_C_NO_BUFFER );
1131 return SEC_E_BUFFER_TOO_SMALL;
1132 }
1133 output->pBuffers[idx].cbBuffer = output_token.length;
1134 memcpy( output->pBuffers[idx].pvBuffer, output_token.value, output_token.length );
1135 pgss_release_buffer( &minor_status, &output_token );
1136
1137 ctxthandle_gss_to_sspi( ctxt_handle, new_context );
1138 if (context_attr) *context_attr = flags_gss_to_asc_ret( ret_flags );
1139 expirytime_gss_to_sspi( expiry_time, ts_expiry );
1140 }
1141
1142 /* we do support user mode SSP/AP functions */
1143 *mapped_context = TRUE;
1144 /* FIXME: initialize context_data */
1145
1146 return status_gss_to_sspi( ret );
1147 #else
1148 FIXME( "(%lx %lx 0x%08x %u %p %p %p %p %p %p %p)\n", credential, context, context_req,
1149 target_data_rep, input, new_context, output, context_attr, ts_expiry,
1150 mapped_context, context_data );
1151 return SEC_E_UNSUPPORTED_FUNCTION;
1152 #endif
1153 }
1154
1155 static NTSTATUS NTAPI kerberos_SpDeleteContext( LSA_SEC_HANDLE context )
1156 {
1157 #ifdef SONAME_LIBGSSAPI_KRB5
1158 OM_uint32 ret, minor_status;
1159 gss_ctx_id_t ctxt_handle;
1160
1161 TRACE( "(%lx)\n", context );
1162 if (!context) return SEC_E_INVALID_HANDLE;
1163 if (!(ctxt_handle = ctxthandle_sspi_to_gss( context ))) return SEC_E_OK;
1164
1165 ret = pgss_delete_sec_context( &minor_status, &ctxt_handle, GSS_C_NO_BUFFER );
1166 TRACE( "gss_delete_sec_context returned %08x minor status %08x\n", ret, minor_status );
1167 if (GSS_ERROR(ret)) trace_gss_status( ret, minor_status );
1168
1169 return status_gss_to_sspi( ret );
1170 #else
1171 FIXME( "(%lx)\n", context );
1172 return SEC_E_UNSUPPORTED_FUNCTION;
1173 #endif
1174 }
1175
1176 static SecPkgInfoW *build_package_info( const SecPkgInfoW *info )
1177 {
1178 SecPkgInfoW *ret;
1179 DWORD size_name = (strlenW(info->Name) + 1) * sizeof(WCHAR);
1180 DWORD size_comment = (strlenW(info->Comment) + 1) * sizeof(WCHAR);
1181
1182 if (!(ret = heap_alloc( sizeof(*ret) + size_name + size_comment ))) return NULL;
1183 ret->fCapabilities = info->fCapabilities;
1184 ret->wVersion = info->wVersion;
1185 ret->wRPCID = info->wRPCID;
1186 ret->cbMaxToken = info->cbMaxToken;
1187 ret->Name = (SEC_WCHAR *)(ret + 1);
1188 memcpy( ret->Name, info->Name, size_name );
1189 ret->Comment = (SEC_WCHAR *)((char *)ret->Name + size_name);
1190 memcpy( ret->Comment, info->Comment, size_comment );
1191 return ret;
1192 }
1193
1194 static NTSTATUS NTAPI kerberos_SpQueryContextAttributes( LSA_SEC_HANDLE context, ULONG attribute, void *buffer )
1195 {
1196 TRACE( "(%lx %u %p)\n", context, attribute, buffer );
1197
1198 if (!context) return SEC_E_INVALID_HANDLE;
1199
1200 switch (attribute)
1201 {
1202 #define X(x) case (x) : FIXME(#x" stub\n"); break
1203 X(SECPKG_ATTR_ACCESS_TOKEN);
1204 X(SECPKG_ATTR_AUTHORITY);
1205 X(SECPKG_ATTR_DCE_INFO);
1206 X(SECPKG_ATTR_KEY_INFO);
1207 X(SECPKG_ATTR_LIFESPAN);
1208 X(SECPKG_ATTR_NAMES);
1209 X(SECPKG_ATTR_NATIVE_NAMES);
1210 X(SECPKG_ATTR_PACKAGE_INFO);
1211 X(SECPKG_ATTR_PASSWORD_EXPIRY);
1212 X(SECPKG_ATTR_SESSION_KEY);
1213 X(SECPKG_ATTR_STREAM_SIZES);
1214 X(SECPKG_ATTR_TARGET_INFORMATION);
1215 case SECPKG_ATTR_SIZES:
1216 {
1217 SecPkgContext_Sizes *sizes = (SecPkgContext_Sizes *)buffer;
1218 ULONG size_max_signature = 37, size_security_trailer = 49;
1219 #ifdef SONAME_LIBGSSAPI_KRB5
1220 gss_ctx_id_t ctxt_handle;
1221
1222 if (!(ctxt_handle = ctxthandle_sspi_to_gss( context ))) return SEC_E_INVALID_HANDLE;
1223 if (is_dce_style_context( ctxt_handle ))
1224 {
1225 size_max_signature = 28;
1226 size_security_trailer = 76;
1227 }
1228 #endif
1229 sizes->cbMaxToken = KERBEROS_MAX_BUF;
1230 sizes->cbMaxSignature = size_max_signature;
1231 sizes->cbBlockSize = 1;
1232 sizes->cbSecurityTrailer = size_security_trailer;
1233 return SEC_E_OK;
1234 }
1235 case SECPKG_ATTR_NEGOTIATION_INFO:
1236 {
1237 SecPkgContext_NegotiationInfoW *info = (SecPkgContext_NegotiationInfoW *)buffer;
1238 if (!(info->PackageInfo = build_package_info( &infoW ))) return SEC_E_INSUFFICIENT_MEMORY;
1239 info->NegotiationState = SECPKG_NEGOTIATION_COMPLETE;
1240 return SEC_E_OK;
1241 }
1242 #undef X
1243 default:
1244 FIXME( "unknown attribute %u\n", attribute );
1245 break;
1246 }
1247
1248 return SEC_E_UNSUPPORTED_FUNCTION;
1249 }
1250
1251 static NTSTATUS NTAPI kerberos_SpInitialize(ULONG_PTR package_id, SECPKG_PARAMETERS *params,
1252 LSA_SECPKG_FUNCTION_TABLE *lsa_function_table)
1253 {
1254 TRACE("%lu,%p,%p\n", package_id, params, lsa_function_table);
1255
1256 #ifdef SONAME_LIBGSSAPI_KRB5
1257 if (load_gssapi_krb5()) return STATUS_SUCCESS;
1258 #endif
1259
1260 return STATUS_UNSUCCESSFUL;
1261 }
1262
1263 static NTSTATUS NTAPI kerberos_SpShutdown(void)
1264 {
1265 TRACE("\n");
1266
1267 #ifdef SONAME_LIBGSSAPI_KRB5
1268 unload_gssapi_krb5();
1269 #endif
1270
1271 return STATUS_SUCCESS;
1272 }
1273
1274 static SECPKG_FUNCTION_TABLE kerberos_table =
1275 {
1276 kerberos_LsaApInitializePackage, /* InitializePackage */
1277 NULL, /* LsaLogonUser */
1278 NULL, /* CallPackage */
1279 NULL, /* LogonTerminated */
1280 kerberos_LsaApCallPackageUntrusted, /* CallPackageUntrusted */
1281 NULL, /* CallPackagePassthrough */
1282 NULL, /* LogonUserEx */
1283 NULL, /* LogonUserEx2 */
1284 kerberos_SpInitialize,
1285 kerberos_SpShutdown,
1286 kerberos_SpGetInfo,
1287 NULL, /* AcceptCredentials */
1288 kerberos_SpAcquireCredentialsHandle,
1289 NULL, /* SpQueryCredentialsAttributes */
1290 kerberos_SpFreeCredentialsHandle,
1291 NULL, /* SaveCredentials */
1292 NULL, /* GetCredentials */
1293 NULL, /* DeleteCredentials */
1294 kerberos_SpInitLsaModeContext,
1295 kerberos_SpAcceptLsaModeContext,
1296 kerberos_SpDeleteContext,
1297 NULL, /* ApplyControlToken */
1298 NULL, /* GetUserInfo */
1299 NULL, /* GetExtendedInformation */
1300 kerberos_SpQueryContextAttributes,
1301 NULL, /* SpAddCredentials */
1302 NULL, /* SetExtendedInformation */
1303 NULL, /* SetContextAttributes */
1304 NULL, /* SetCredentialsAttributes */
1305 NULL, /* ChangeAccountPassword */
1306 NULL, /* QueryMetaData */
1307 NULL, /* ExchangeMetaData */
1308 NULL, /* GetCredUIContext */
1309 NULL, /* UpdateCredentials */
1310 NULL, /* ValidateTargetInfo */
1311 NULL, /* PostLogonUser */
1312 };
1313
1314 NTSTATUS NTAPI SpLsaModeInitialize(ULONG lsa_version, PULONG package_version,
1315 PSECPKG_FUNCTION_TABLE *table, PULONG table_count)
1316 {
1317 TRACE("%#x,%p,%p,%p\n", lsa_version, package_version, table, table_count);
1318
1319 *package_version = SECPKG_INTERFACE_VERSION;
1320 *table = &kerberos_table;
1321 *table_count = 1;
1322
1323 return STATUS_SUCCESS;
1324 }
1325
1326 static NTSTATUS NTAPI kerberos_SpInstanceInit(ULONG version, SECPKG_DLL_FUNCTIONS *dll_function_table, void **user_functions)
1327 {
1328 FIXME("%u,%p,%p: stub\n", version, dll_function_table, user_functions);
1329
1330 return STATUS_SUCCESS;
1331 }
1332
1333 static NTSTATUS SEC_ENTRY kerberos_SpMakeSignature( LSA_SEC_HANDLE context, ULONG quality_of_protection,
1334 SecBufferDesc *message, ULONG message_seq_no )
1335 {
1336 #ifdef SONAME_LIBGSSAPI_KRB5
1337 OM_uint32 ret, minor_status;
1338 gss_buffer_desc data_buffer, token_buffer;
1339 gss_ctx_id_t ctxt_handle;
1340 int data_idx, token_idx;
1341
1342 TRACE( "(%lx 0x%08x %p %u)\n", context, quality_of_protection, message, message_seq_no );
1343 if (quality_of_protection) FIXME( "ignoring quality_of_protection 0x%08x\n", quality_of_protection );
1344 if (message_seq_no) FIXME( "ignoring message_seq_no %u\n", message_seq_no );
1345
1346 if (!context) return SEC_E_INVALID_HANDLE;
1347 ctxt_handle = ctxthandle_sspi_to_gss( context );
1348
1349 /* FIXME: multiple data buffers, read-only buffers */
1350 if ((data_idx = get_buffer_index( message, SECBUFFER_DATA )) == -1) return SEC_E_INVALID_TOKEN;
1351 data_buffer.length = message->pBuffers[data_idx].cbBuffer;
1352 data_buffer.value = message->pBuffers[data_idx].pvBuffer;
1353
1354 if ((token_idx = get_buffer_index( message, SECBUFFER_TOKEN )) == -1) return SEC_E_INVALID_TOKEN;
1355 token_buffer.length = 0;
1356 token_buffer.value = NULL;
1357
1358 ret = pgss_get_mic( &minor_status, ctxt_handle, GSS_C_QOP_DEFAULT, &data_buffer, &token_buffer );
1359 TRACE( "gss_get_mic returned %08x minor status %08x\n", ret, minor_status );
1360 if (GSS_ERROR(ret)) trace_gss_status( ret, minor_status );
1361 if (ret == GSS_S_COMPLETE)
1362 {
1363 memcpy( message->pBuffers[token_idx].pvBuffer, token_buffer.value, token_buffer.length );
1364 message->pBuffers[token_idx].cbBuffer = token_buffer.length;
1365 pgss_release_buffer( &minor_status, &token_buffer );
1366 }
1367
1368 return status_gss_to_sspi( ret );
1369 #else
1370 FIXME( "(%lx 0x%08x %p %u)\n", context, quality_of_protection, message, message_seq_no );
1371 return SEC_E_UNSUPPORTED_FUNCTION;
1372 #endif
1373 }
1374
1375 static NTSTATUS NTAPI kerberos_SpVerifySignature( LSA_SEC_HANDLE context, SecBufferDesc *message,
1376 ULONG message_seq_no, ULONG *quality_of_protection )
1377 {
1378 #ifdef SONAME_LIBGSSAPI_KRB5
1379 OM_uint32 ret, minor_status;
1380 gss_buffer_desc data_buffer, token_buffer;
1381 gss_ctx_id_t ctxt_handle;
1382 int data_idx, token_idx;
1383
1384 TRACE( "(%lx %p %u %p)\n", context, message, message_seq_no, quality_of_protection );
1385 if (message_seq_no) FIXME( "ignoring message_seq_no %u\n", message_seq_no );
1386
1387 if (!context) return SEC_E_INVALID_HANDLE;
1388 ctxt_handle = ctxthandle_sspi_to_gss( context );
1389
1390 if ((data_idx = get_buffer_index( message, SECBUFFER_DATA )) == -1) return SEC_E_INVALID_TOKEN;
1391 data_buffer.length = message->pBuffers[data_idx].cbBuffer;
1392 data_buffer.value = message->pBuffers[data_idx].pvBuffer;
1393
1394 if ((token_idx = get_buffer_index( message, SECBUFFER_TOKEN )) == -1) return SEC_E_INVALID_TOKEN;
1395 token_buffer.length = message->pBuffers[token_idx].cbBuffer;
1396 token_buffer.value = message->pBuffers[token_idx].pvBuffer;
1397
1398 ret = pgss_verify_mic( &minor_status, ctxt_handle, &data_buffer, &token_buffer, NULL );
1399 TRACE( "gss_verify_mic returned %08x minor status %08x\n", ret, minor_status );
1400 if (GSS_ERROR(ret)) trace_gss_status( ret, minor_status );
1401 if (ret == GSS_S_COMPLETE && quality_of_protection) *quality_of_protection = 0;
1402
1403 return status_gss_to_sspi( ret );
1404 #else
1405 FIXME( "(%lx %p %u %p)\n", context, message, message_seq_no, quality_of_protection );
1406 return SEC_E_UNSUPPORTED_FUNCTION;
1407 #endif
1408 }
1409
1410 #ifdef SONAME_LIBGSSAPI_KRB5
1411 static NTSTATUS seal_message_iov( gss_ctx_id_t ctxt_handle, SecBufferDesc *message )
1412 {
1413 gss_iov_buffer_desc iov[4];
1414 OM_uint32 ret, minor_status;
1415 int token_idx, data_idx, conf_state;
1416
1417 /* FIXME: multiple data buffers, read-only buffers */
1418 if ((data_idx = get_buffer_index( message, SECBUFFER_DATA )) == -1) return SEC_E_INVALID_TOKEN;
1419 if ((token_idx = get_buffer_index( message, SECBUFFER_TOKEN )) == -1) return SEC_E_INVALID_TOKEN;
1420
1421 iov[0].type = GSS_IOV_BUFFER_TYPE_SIGN_ONLY | GSS_IOV_BUFFER_FLAG_ALLOCATE;
1422 iov[0].buffer.length = 0;
1423 iov[0].buffer.value = NULL;
1424
1425 iov[1].type = GSS_IOV_BUFFER_TYPE_DATA;
1426 iov[1].buffer.length = message->pBuffers[data_idx].cbBuffer;
1427 iov[1].buffer.value = message->pBuffers[data_idx].pvBuffer;
1428
1429 iov[2].type = GSS_IOV_BUFFER_TYPE_SIGN_ONLY | GSS_IOV_BUFFER_FLAG_ALLOCATE;
1430 iov[2].buffer.length = 0;
1431 iov[2].buffer.value = NULL;
1432
1433 iov[3].type = GSS_IOV_BUFFER_TYPE_HEADER | GSS_IOV_BUFFER_FLAG_ALLOCATE;
1434 iov[3].buffer.length = 0;
1435 iov[3].buffer.value = NULL;
1436
1437 ret = pgss_wrap_iov( &minor_status, ctxt_handle, 1, GSS_C_QOP_DEFAULT, &conf_state, iov, 4 );
1438 TRACE( "gss_wrap_iov returned %08x minor status %08x\n", ret, minor_status );
1439 if (GSS_ERROR(ret)) trace_gss_status( ret, minor_status );
1440 if (ret == GSS_S_COMPLETE)
1441 {
1442 memcpy( message->pBuffers[token_idx].pvBuffer, iov[3].buffer.value, iov[3].buffer.length );
1443 message->pBuffers[token_idx].cbBuffer = iov[3].buffer.length;
1444 pgss_release_iov_buffer( &minor_status, iov, 4 );
1445 }
1446
1447 return status_gss_to_sspi( ret );
1448 }
1449
1450 static NTSTATUS seal_message( gss_ctx_id_t ctxt_handle, SecBufferDesc *message )
1451 {
1452 gss_buffer_desc input, output;
1453 OM_uint32 ret, minor_status;
1454 int token_idx, data_idx, conf_state;
1455
1456 /* FIXME: multiple data buffers, read-only buffers */
1457 if ((data_idx = get_buffer_index( message, SECBUFFER_DATA )) == -1) return SEC_E_INVALID_TOKEN;
1458 if ((token_idx = get_buffer_index( message, SECBUFFER_TOKEN )) == -1) return SEC_E_INVALID_TOKEN;
1459
1460 input.length = message->pBuffers[data_idx].cbBuffer;
1461 input.value = message->pBuffers[data_idx].pvBuffer;
1462
1463 ret = pgss_wrap( &minor_status, ctxt_handle, 1, GSS_C_QOP_DEFAULT, &input, &conf_state, &output );
1464 TRACE( "gss_wrap returned %08x minor status %08x\n", ret, minor_status );
1465 if (GSS_ERROR(ret)) trace_gss_status( ret, minor_status );
1466 if (ret == GSS_S_COMPLETE)
1467 {
1468 DWORD len_data = message->pBuffers[data_idx].cbBuffer, len_token = message->pBuffers[token_idx].cbBuffer;
1469 if (len_token < output.length - len_data)
1470 {
1471 TRACE( "buffer too small %lu > %u\n", (SIZE_T)output.length - len_data, len_token );
1472 pgss_release_buffer( &minor_status, &output );
1473 return SEC_E_BUFFER_TOO_SMALL;
1474 }
1475 memcpy( message->pBuffers[data_idx].pvBuffer, output.value, len_data );
1476 memcpy( message->pBuffers[token_idx].pvBuffer, (char *)output.value + len_data, output.length - len_data );
1477 message->pBuffers[token_idx].cbBuffer = output.length - len_data;
1478 pgss_release_buffer( &minor_status, &output );
1479 }
1480
1481 return status_gss_to_sspi( ret );
1482 }
1483 #endif
1484
1485 static NTSTATUS NTAPI kerberos_SpSealMessage( LSA_SEC_HANDLE context, ULONG quality_of_protection,
1486 SecBufferDesc *message, ULONG message_seq_no )
1487 {
1488 #ifdef SONAME_LIBGSSAPI_KRB5
1489 gss_ctx_id_t ctxt_handle;
1490
1491 TRACE( "(%lx 0x%08x %p %u)\n", context, quality_of_protection, message, message_seq_no );
1492 if (quality_of_protection)
1493 {
1494 FIXME( "flags %08x not supported\n", quality_of_protection );
1495 return SEC_E_UNSUPPORTED_FUNCTION;
1496 }
1497 if (message_seq_no) FIXME( "ignoring message_seq_no %u\n", message_seq_no );
1498
1499 if (!context) return SEC_E_INVALID_HANDLE;
1500 ctxt_handle = ctxthandle_sspi_to_gss( context );
1501
1502 if (is_dce_style_context( ctxt_handle )) return seal_message_iov( ctxt_handle, message );
1503 return seal_message( ctxt_handle, message );
1504 #else
1505 FIXME( "(%lx 0x%08x %p %u)\n", context, quality_of_protection, message, message_seq_no );
1506 return SEC_E_UNSUPPORTED_FUNCTION;
1507 #endif
1508 }
1509
1510 #ifdef SONAME_LIBGSSAPI_KRB5
1511 static NTSTATUS unseal_message_iov( gss_ctx_id_t ctxt_handle, SecBufferDesc *message, ULONG *quality_of_protection )
1512 {
1513 gss_iov_buffer_desc iov[4];
1514 OM_uint32 ret, minor_status;
1515 int token_idx, data_idx, conf_state;
1516
1517 if ((data_idx = get_buffer_index( message, SECBUFFER_DATA )) == -1) return SEC_E_INVALID_TOKEN;
1518 if ((token_idx = get_buffer_index( message, SECBUFFER_TOKEN )) == -1) return SEC_E_INVALID_TOKEN;
1519
1520 iov[0].type = GSS_IOV_BUFFER_TYPE_SIGN_ONLY;
1521 iov[0].buffer.length = 0;
1522 iov[0].buffer.value = NULL;
1523
1524 iov[1].type = GSS_IOV_BUFFER_TYPE_DATA;
1525 iov[1].buffer.length = message->pBuffers[data_idx].cbBuffer;
1526 iov[1].buffer.value = message->pBuffers[data_idx].pvBuffer;
1527
1528 iov[2].type = GSS_IOV_BUFFER_TYPE_SIGN_ONLY;
1529 iov[2].buffer.length = 0;
1530 iov[2].buffer.value = NULL;
1531
1532 iov[3].type = GSS_IOV_BUFFER_TYPE_HEADER;
1533 iov[3].buffer.length = message->pBuffers[token_idx].cbBuffer;
1534 iov[3].buffer.value = message->pBuffers[token_idx].pvBuffer;
1535
1536 ret = pgss_unwrap_iov( &minor_status, ctxt_handle, &conf_state, NULL, iov, 4 );
1537 TRACE( "gss_unwrap_iov returned %08x minor status %08x\n", ret, minor_status );
1538 if (GSS_ERROR(ret)) trace_gss_status( ret, minor_status );
1539 if (ret == GSS_S_COMPLETE && quality_of_protection)
1540 {
1541 *quality_of_protection = (conf_state ? 0 : SECQOP_WRAP_NO_ENCRYPT);
1542 }
1543 return status_gss_to_sspi( ret );
1544 }
1545
1546 static NTSTATUS unseal_message( gss_ctx_id_t ctxt_handle, SecBufferDesc *message, ULONG *quality_of_protection )
1547 {
1548 gss_buffer_desc input, output;
1549 OM_uint32 ret, minor_status;
1550 int token_idx, data_idx, conf_state;
1551 DWORD len_data, len_token;
1552
1553 if ((data_idx = get_buffer_index( message, SECBUFFER_DATA )) == -1) return SEC_E_INVALID_TOKEN;
1554 if ((token_idx = get_buffer_index( message, SECBUFFER_TOKEN )) == -1) return SEC_E_INVALID_TOKEN;
1555
1556 len_data = message->pBuffers[data_idx].cbBuffer;
1557 len_token = message->pBuffers[token_idx].cbBuffer;
1558
1559 input.length = len_data + len_token;
1560 if (!(input.value = heap_alloc( input.length ))) return SEC_E_INSUFFICIENT_MEMORY;
1561 memcpy( input.value, message->pBuffers[data_idx].pvBuffer, len_data );
1562 memcpy( (char *)input.value + len_data, message->pBuffers[token_idx].pvBuffer, len_token );
1563
1564 ret = pgss_unwrap( &minor_status, ctxt_handle, &input, &output, &conf_state, NULL );
1565 heap_free( input.value );
1566 TRACE( "gss_unwrap returned %08x minor status %08x\n", ret, minor_status );
1567 if (GSS_ERROR(ret)) trace_gss_status( ret, minor_status );
1568 if (ret == GSS_S_COMPLETE)
1569 {
1570 if (quality_of_protection) *quality_of_protection = (conf_state ? 0 : SECQOP_WRAP_NO_ENCRYPT);
1571 memcpy( message->pBuffers[data_idx].pvBuffer, output.value, len_data );
1572 pgss_release_buffer( &minor_status, &output );
1573 }
1574
1575 return status_gss_to_sspi( ret );
1576 }
1577 #endif
1578
1579 static NTSTATUS NTAPI kerberos_SpUnsealMessage( LSA_SEC_HANDLE context, SecBufferDesc *message,
1580 ULONG message_seq_no, ULONG *quality_of_protection )
1581 {
1582 #ifdef SONAME_LIBGSSAPI_KRB5
1583 gss_ctx_id_t ctxt_handle;
1584
1585 TRACE( "(%lx %p %u %p)\n", context, message, message_seq_no, quality_of_protection );
1586 if (message_seq_no) FIXME( "ignoring message_seq_no %u\n", message_seq_no );
1587
1588 if (!context) return SEC_E_INVALID_HANDLE;
1589 ctxt_handle = ctxthandle_sspi_to_gss( context );
1590
1591 if (is_dce_style_context( ctxt_handle )) return unseal_message_iov( ctxt_handle, message, quality_of_protection );
1592 return unseal_message( ctxt_handle, message, quality_of_protection );
1593 #else
1594 FIXME( "(%lx %p %u %p)\n", context, message, message_seq_no, quality_of_protection );
1595 return SEC_E_UNSUPPORTED_FUNCTION;
1596 #endif
1597 }
1598
1599 static SECPKG_USER_FUNCTION_TABLE kerberos_user_table =
1600 {
1601 kerberos_SpInstanceInit,
1602 NULL, /* SpInitUserModeContext */
1603 kerberos_SpMakeSignature,
1604 kerberos_SpVerifySignature,
1605 kerberos_SpSealMessage,
1606 kerberos_SpUnsealMessage,
1607 NULL, /* SpGetContextToken */
1608 NULL, /* SpQueryContextAttributes */
1609 NULL, /* SpCompleteAuthToken */
1610 NULL, /* SpDeleteContext */
1611 NULL, /* SpFormatCredentialsFn */
1612 NULL, /* SpMarshallSupplementalCreds */
1613 NULL, /* SpExportSecurityContext */
1614 NULL /* SpImportSecurityContext */
1615 };
1616
1617 NTSTATUS NTAPI SpUserModeInitialize(ULONG lsa_version, PULONG package_version,
1618 PSECPKG_USER_FUNCTION_TABLE *table, PULONG table_count)
1619 {
1620 TRACE("%#x,%p,%p,%p\n", lsa_version, package_version, table, table_count);
1621
1622 *package_version = SECPKG_INTERFACE_VERSION;
1623 *table = &kerberos_user_table;
1624 *table_count = 1;
1625
1626 return STATUS_SUCCESS;
1627 }
Windows API implementation