source: heimdal/trunk/lib/kadm5/ad.c@ 4

Last change on this file since 4 was 1, checked in by Paul Smedley, 10 years ago

Initial commit of Heimdal 1.5.3
File size: 32.7 KB
Line 
1/*
2 * Copyright (c) 2004 Kungliga Tekniska Högskolan
3 * (Royal Institute of Technology, Stockholm, Sweden).
4 * All rights reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:
9 *
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 *
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
16 *
17 * 3. Neither the name of the Institute nor the names of its contributors
18 * may be used to endorse or promote products derived from this software
19 * without specific prior written permission.
20 *
21 * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24 * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31 * SUCH DAMAGE.
32 */
33
34#define HAVE_TSASL 1
35
36#include "kadm5_locl.h"
37#if 1
38#undef OPENLDAP
39#undef HAVE_TSASL
40#endif
41#ifdef OPENLDAP
42#include <ldap.h>
43#ifdef HAVE_TSASL
44#include <tsasl.h>
45#endif
46#include <resolve.h>
47#include <base64.h>
48#endif
49
50RCSID("$Id$");
51
52#ifdef OPENLDAP
53
54#define CTX2LP(context) ((LDAP *)((context)->ldap_conn))
55#define CTX2BASE(context) ((context)->base_dn)
56
57/*
58 * userAccountControl
59 */
60
61#define UF_SCRIPT 0x00000001
62#define UF_ACCOUNTDISABLE 0x00000002
63#define UF_UNUSED_0 0x00000004
64#define UF_HOMEDIR_REQUIRED 0x00000008
65#define UF_LOCKOUT 0x00000010
66#define UF_PASSWD_NOTREQD 0x00000020
67#define UF_PASSWD_CANT_CHANGE 0x00000040
68#define UF_ENCRYPTED_TEXT_PASSWORD_ALLOWED 0x00000080
69#define UF_TEMP_DUPLICATE_ACCOUNT 0x00000100
70#define UF_NORMAL_ACCOUNT 0x00000200
71#define UF_UNUSED_1 0x00000400
72#define UF_INTERDOMAIN_TRUST_ACCOUNT 0x00000800
73#define UF_WORKSTATION_TRUST_ACCOUNT 0x00001000
74#define UF_SERVER_TRUST_ACCOUNT 0x00002000
75#define UF_UNUSED_2 0x00004000
76#define UF_UNUSED_3 0x00008000
77#define UF_PASSWD_NOT_EXPIRE 0x00010000
78#define UF_MNS_LOGON_ACCOUNT 0x00020000
79#define UF_SMARTCARD_REQUIRED 0x00040000
80#define UF_TRUSTED_FOR_DELEGATION 0x00080000
81#define UF_NOT_DELEGATED 0x00100000
82#define UF_USE_DES_KEY_ONLY 0x00200000
83#define UF_DONT_REQUIRE_PREAUTH 0x00400000
84#define UF_UNUSED_4 0x00800000
85#define UF_UNUSED_5 0x01000000
86#define UF_UNUSED_6 0x02000000
87#define UF_UNUSED_7 0x04000000
88#define UF_UNUSED_8 0x08000000
89#define UF_UNUSED_9 0x10000000
90#define UF_UNUSED_10 0x20000000
91#define UF_UNUSED_11 0x40000000
92#define UF_UNUSED_12 0x80000000
93
94/*
95 *
96 */
97
98#ifndef HAVE_TSASL
99static int
100sasl_interact(LDAP *ld, unsigned flags, void *defaults, void *interact)
101{
102 return LDAP_SUCCESS;
103}
104#endif
105
106#if 0
107static Sockbuf_IO ldap_tsasl_io = {
108 NULL, /* sbi_setup */
109 NULL, /* sbi_remove */
110 NULL, /* sbi_ctrl */
111 NULL, /* sbi_read */
112 NULL, /* sbi_write */
113 NULL /* sbi_close */
114};
115#endif
116
117#ifdef HAVE_TSASL
118static int
119ldap_tsasl_bind_s(LDAP *ld,
120 LDAP_CONST char *dn,
121 LDAPControl **serverControls,
122 LDAPControl **clientControls,
123 const char *host)
124{
125 char *attrs[] = { "supportedSASLMechanisms", NULL };
126 struct tsasl_peer *peer = NULL;
127 struct tsasl_buffer in, out;
128 struct berval ccred, *scred;
129 LDAPMessage *m, *m0;
130 const char *mech;
131 char **vals;
132 int ret, rc;
133
134 ret = tsasl_peer_init(TSASL_FLAGS_INITIATOR | TSASL_FLAGS_CLEAR,
135 "ldap", host, &peer);
136 if (ret != TSASL_DONE) {
137 rc = LDAP_LOCAL_ERROR;
138 goto out;
139 }
140
141 rc = ldap_search_s(ld, "", LDAP_SCOPE_BASE, NULL, attrs, 0, &m0);
142 if (rc != LDAP_SUCCESS)
143 goto out;
144
145 m = ldap_first_entry(ld, m0);
146 if (m == NULL) {
147 ldap_msgfree(m0);
148 goto out;
149 }
150
151 vals = ldap_get_values(ld, m, "supportedSASLMechanisms");
152 if (vals == NULL) {
153 ldap_msgfree(m0);
154 goto out;
155 }
156
157 ret = tsasl_find_best_mech(peer, vals, &mech);
158 if (ret) {
159 ldap_msgfree(m0);
160 goto out;
161 }
162
163 ldap_msgfree(m0);
164
165 ret = tsasl_select_mech(peer, mech);
166 if (ret != TSASL_DONE) {
167 rc = LDAP_LOCAL_ERROR;
168 goto out;
169 }
170
171 in.tb_data = NULL;
172 in.tb_size = 0;
173
174 do {
175 ret = tsasl_request(peer, &in, &out);
176 if (in.tb_size != 0) {
177 free(in.tb_data);
178 in.tb_data = NULL;
179 in.tb_size = 0;
180 }
181 if (ret != TSASL_DONE && ret != TSASL_CONTINUE) {
182 rc = LDAP_AUTH_UNKNOWN;
183 goto out;
184 }
185
186 ccred.bv_val = out.tb_data;
187 ccred.bv_len = out.tb_size;
188
189 rc = ldap_sasl_bind_s(ld, dn, mech, &ccred,
190 serverControls, clientControls, &scred);
191 tsasl_buffer_free(&out);
192
193 if (rc != LDAP_SUCCESS && rc != LDAP_SASL_BIND_IN_PROGRESS) {
194 if(scred && scred->bv_len)
195 ber_bvfree(scred);
196 goto out;
197 }
198
199 in.tb_data = malloc(scred->bv_len);
200 if (in.tb_data == NULL) {
201 rc = LDAP_LOCAL_ERROR;
202 goto out;
203 }
204 memcpy(in.tb_data, scred->bv_val, scred->bv_len);
205 in.tb_size = scred->bv_len;
206 ber_bvfree(scred);
207
208 } while (rc == LDAP_SASL_BIND_IN_PROGRESS);
209
210 out:
211 if (rc == LDAP_SUCCESS) {
212#if 0
213 ber_sockbuf_add_io(ld->ld_conns->lconn_sb, &ldap_tsasl_io,
214 LBER_SBIOD_LEVEL_APPLICATION, peer);
215
216#endif
217 } else if (peer != NULL)
218 tsasl_peer_free(peer);
219
220 return rc;
221}
222#endif /* HAVE_TSASL */
223
224
225static int
226check_ldap(kadm5_ad_context *context, int ret)
227{
228 switch (ret) {
229 case LDAP_SUCCESS:
230 return 0;
231 case LDAP_SERVER_DOWN: {
232 LDAP *lp = CTX2LP(context);
233 ldap_unbind(lp);
234 context->ldap_conn = NULL;
235 free(context->base_dn);
236 context->base_dn = NULL;
237 return 1;
238 }
239 default:
240 return 1;
241 }
242}
243
244/*
245 *
246 */
247
248static void
249laddattr(char ***al, int *attrlen, char *attr)
250{
251 char **a;
252 a = realloc(*al, (*attrlen + 2) * sizeof(**al));
253 if (a == NULL)
254 return;
255 a[*attrlen] = attr;
256 a[*attrlen + 1] = NULL;
257 (*attrlen)++;
258 *al = a;
259}
260
261static kadm5_ret_t
262_kadm5_ad_connect(void *server_handle)
263{
264 kadm5_ad_context *context = server_handle;
265 struct {
266 char *server;
267 int port;
268 } *s, *servers = NULL;
269 int i, num_servers = 0;
270
271 if (context->ldap_conn)
272 return 0;
273
274 {
275 struct dns_reply *r;
276 struct resource_record *rr;
277 char *domain;
278
279 asprintf(&domain, "_ldap._tcp.%s", context->realm);
280 if (domain == NULL) {
281 krb5_set_error_message(context->context, KADM5_NO_SRV, "malloc");
282 return KADM5_NO_SRV;
283 }
284
285 r = dns_lookup(domain, "SRV");
286 free(domain);
287 if (r == NULL) {
288 krb5_set_error_message(context->context, KADM5_NO_SRV, "Didn't find ldap dns");
289 return KADM5_NO_SRV;
290 }
291
292 for (rr = r->head ; rr != NULL; rr = rr->next) {
293 if (rr->type != rk_ns_t_srv)
294 continue;
295 s = realloc(servers, sizeof(*servers) * (num_servers + 1));
296 if (s == NULL) {
297 krb5_set_error_message(context->context, KADM5_RPC_ERROR, "malloc");
298 dns_free_data(r);
299 goto fail;
300 }
301 servers = s;
302 num_servers++;
303 servers[num_servers - 1].port = rr->u.srv->port;
304 servers[num_servers - 1].server = strdup(rr->u.srv->target);
305 }
306 dns_free_data(r);
307 }
308
309 if (num_servers == 0) {
310 krb5_set_error_message(context->context, KADM5_NO_SRV, "No AD server found in DNS");
311 return KADM5_NO_SRV;
312 }
313
314 for (i = 0; i < num_servers; i++) {
315 int lret, version = LDAP_VERSION3;
316 LDAP *lp;
317
318 lp = ldap_init(servers[i].server, servers[i].port);
319 if (lp == NULL)
320 continue;
321
322 if (ldap_set_option(lp, LDAP_OPT_PROTOCOL_VERSION, &version)) {
323 ldap_unbind(lp);
324 continue;
325 }
326
327 if (ldap_set_option(lp, LDAP_OPT_REFERRALS, LDAP_OPT_OFF)) {
328 ldap_unbind(lp);
329 continue;
330 }
331
332#ifdef HAVE_TSASL
333 lret = ldap_tsasl_bind_s(lp, NULL, NULL, NULL, servers[i].server);
334
335#else
336 lret = ldap_sasl_interactive_bind_s(lp, NULL, NULL, NULL, NULL,
337 LDAP_SASL_QUIET,
338 sasl_interact, NULL);
339#endif
340 if (lret != LDAP_SUCCESS) {
341 krb5_set_error_message(context->context, 0,
342 "Couldn't contact any AD servers: %s",
343 ldap_err2string(lret));
344 ldap_unbind(lp);
345 continue;
346 }
347
348 context->ldap_conn = lp;
349 break;
350 }
351 if (i >= num_servers) {
352 goto fail;
353 }
354
355 {
356 LDAPMessage *m, *m0;
357 char **attr = NULL;
358 int attrlen = 0;
359 char **vals;
360 int ret;
361
362 laddattr(&attr, &attrlen, "defaultNamingContext");
363
364 ret = ldap_search_s(CTX2LP(context), "", LDAP_SCOPE_BASE,
365 "objectclass=*", attr, 0, &m);
366 free(attr);
367 if (check_ldap(context, ret))
368 goto fail;
369
370 if (ldap_count_entries(CTX2LP(context), m) > 0) {
371 m0 = ldap_first_entry(CTX2LP(context), m);
372 if (m0 == NULL) {
373 krb5_set_error_message(context->context, KADM5_RPC_ERROR,
374 "Error in AD ldap responce");
375 ldap_msgfree(m);
376 goto fail;
377 }
378 vals = ldap_get_values(CTX2LP(context),
379 m0, "defaultNamingContext");
380 if (vals == NULL) {
381 krb5_set_error_message(context->context, KADM5_RPC_ERROR,
382 "No naming context found");
383 goto fail;
384 }
385 context->base_dn = strdup(vals[0]);
386 } else
387 goto fail;
388 ldap_msgfree(m);
389 }
390
391 for (i = 0; i < num_servers; i++)
392 free(servers[i].server);
393 free(servers);
394
395 return 0;
396
397 fail:
398 for (i = 0; i < num_servers; i++)
399 free(servers[i].server);
400 free(servers);
401
402 if (context->ldap_conn) {
403 ldap_unbind(CTX2LP(context));
404 context->ldap_conn = NULL;
405 }
406 return KADM5_RPC_ERROR;
407}
408
409#define NTTIME_EPOCH 0x019DB1DED53E8000LL
410
411static time_t
412nt2unixtime(const char *str)
413{
414 unsigned long long t;
415 t = strtoll(str, NULL, 10);
416 t = ((t - NTTIME_EPOCH) / (long long)10000000);
417 if (t > (((time_t)(~(long long)0)) >> 1))
418 return 0;
419 return (time_t)t;
420}
421
422static long long
423unix2nttime(time_t unix_time)
424{
425 long long wt;
426 wt = unix_time * (long long)10000000 + (long long)NTTIME_EPOCH;
427 return wt;
428}
429
430/* XXX create filter in a better way */
431
432static int
433ad_find_entry(kadm5_ad_context *context,
434 const char *fqdn,
435 const char *pn,
436 char **name)
437{
438 LDAPMessage *m, *m0;
439 char *attr[] = { "distinguishedName", NULL };
440 char *filter;
441 int ret;
442
443 if (name)
444 *name = NULL;
445
446 if (fqdn)
447 asprintf(&filter,
448 "(&(objectClass=computer)(|(dNSHostName=%s)(servicePrincipalName=%s)))",
449 fqdn, pn);
450 else if(pn)
451 asprintf(&filter, "(&(objectClass=account)(userPrincipalName=%s))", pn);
452 else
453 return KADM5_RPC_ERROR;
454
455 ret = ldap_search_s(CTX2LP(context), CTX2BASE(context),
456 LDAP_SCOPE_SUBTREE,
457 filter, attr, 0, &m);
458 free(filter);
459 if (check_ldap(context, ret))
460 return KADM5_RPC_ERROR;
461
462 if (ldap_count_entries(CTX2LP(context), m) > 0) {
463 char **vals;
464 m0 = ldap_first_entry(CTX2LP(context), m);
465 vals = ldap_get_values(CTX2LP(context), m0, "distinguishedName");
466 if (vals == NULL || vals[0] == NULL) {
467 ldap_msgfree(m);
468 return KADM5_RPC_ERROR;
469 }
470 if (name)
471 *name = strdup(vals[0]);
472 ldap_msgfree(m);
473 } else
474 return KADM5_UNK_PRINC;
475
476 return 0;
477}
478
479#endif /* OPENLDAP */
480
481static kadm5_ret_t
482ad_get_cred(kadm5_ad_context *context, const char *password)
483{
484 kadm5_ret_t ret;
485 krb5_ccache cc;
486 char *service;
487
488 if (context->ccache)
489 return 0;
490
491 asprintf(&service, "%s/%s@%s", KRB5_TGS_NAME,
492 context->realm, context->realm);
493 if (service == NULL)
494 return ENOMEM;
495
496 ret = _kadm5_c_get_cred_cache(context->context,
497 context->client_name,
498 service,
499 password, krb5_prompter_posix,
500 NULL, NULL, &cc);
501 free(service);
502 if(ret)
503 return ret; /* XXX */
504 context->ccache = cc;
505 return 0;
506}
507
508static kadm5_ret_t
509kadm5_ad_chpass_principal(void *server_handle,
510 krb5_principal principal,
511 const char *password)
512{
513 kadm5_ad_context *context = server_handle;
514 krb5_data result_code_string, result_string;
515 int result_code;
516 kadm5_ret_t ret;
517
518 ret = ad_get_cred(context, NULL);
519 if (ret)
520 return ret;
521
522 krb5_data_zero (&result_code_string);
523 krb5_data_zero (&result_string);
524
525 ret = krb5_set_password_using_ccache (context->context,
526 context->ccache,
527 password,
528 principal,
529 &result_code,
530 &result_code_string,
531 &result_string);
532
533 krb5_data_free (&result_code_string);
534 krb5_data_free (&result_string);
535
536 /* XXX do mapping here on error codes */
537
538 return ret;
539}
540
541#ifdef OPENLDAP
542static const char *
543get_fqdn(krb5_context context, const krb5_principal p)
544{
545 const char *s, *hosttypes[] = { "host", "ldap", "gc", "cifs", "dns" };
546 int i;
547
548 s = krb5_principal_get_comp_string(context, p, 0);
549 if (p == NULL)
550 return NULL;
551
552 for (i = 0; i < sizeof(hosttypes)/sizeof(hosttypes[0]); i++) {
553 if (strcasecmp(s, hosttypes[i]) == 0)
554 return krb5_principal_get_comp_string(context, p, 1);
555 }
556 return 0;
557}
558#endif
559
560
561static kadm5_ret_t
562kadm5_ad_create_principal(void *server_handle,
563 kadm5_principal_ent_t entry,
564 uint32_t mask,
565 const char *password)
566{
567 kadm5_ad_context *context = server_handle;
568
569 /*
570 * KADM5_PRINC_EXPIRE_TIME
571 *
572 * return 0 || KADM5_DUP;
573 */
574
575#ifdef OPENLDAP
576 LDAPMod *attrs[8], rattrs[7], *a;
577 char *useraccvals[2] = { NULL, NULL },
578 *samvals[2], *dnsvals[2], *spnvals[5], *upnvals[2], *tv[2];
579 char *ocvals_spn[] = { "top", "person", "organizationalPerson",
580 "user", "computer", NULL};
581 char *p, *realmless_p, *p_msrealm = NULL, *dn = NULL;
582 const char *fqdn;
583 char *s, *samname = NULL, *short_spn = NULL;
584 int ret, i;
585 int32_t uf_flags = 0;
586
587 if ((mask & KADM5_PRINCIPAL) == 0)
588 return KADM5_BAD_MASK;
589
590 for (i = 0; i < sizeof(rattrs)/sizeof(rattrs[0]); i++)
591 attrs[i] = &rattrs[i];
592 attrs[i] = NULL;
593
594 ret = ad_get_cred(context, NULL);
595 if (ret)
596 return ret;
597
598 ret = _kadm5_ad_connect(server_handle);
599 if (ret)
600 return ret;
601
602 fqdn = get_fqdn(context->context, entry->principal);
603
604 ret = krb5_unparse_name(context->context, entry->principal, &p);
605 if (ret)
606 return ret;
607
608 if (ad_find_entry(context, fqdn, p, NULL) == 0) {
609 free(p);
610 return KADM5_DUP;
611 }
612
613 if (mask & KADM5_ATTRIBUTES) {
614 if (entry->attributes & KRB5_KDB_DISALLOW_ALL_TIX)
615 uf_flags |= UF_ACCOUNTDISABLE|UF_LOCKOUT;
616 if ((entry->attributes & KRB5_KDB_REQUIRES_PRE_AUTH) == 0)
617 uf_flags |= UF_DONT_REQUIRE_PREAUTH;
618 if (entry->attributes & KRB5_KDB_REQUIRES_HW_AUTH)
619 uf_flags |= UF_SMARTCARD_REQUIRED;
620 }
621
622 realmless_p = strdup(p);
623 if (realmless_p == NULL) {
624 ret = ENOMEM;
625 goto out;
626 }
627 s = strrchr(realmless_p, '@');
628 if (s)
629 *s = '\0';
630
631 if (fqdn) {
632 /* create computer account */
633 asprintf(&samname, "%s$", fqdn);
634 if (samname == NULL) {
635 ret = ENOMEM;
636 goto out;
637 }
638 s = strchr(samname, '.');
639 if (s) {
640 s[0] = '$';
641 s[1] = '\0';
642 }
643
644 short_spn = strdup(p);
645 if (short_spn == NULL) {
646 errno = ENOMEM;
647 goto out;
648 }
649 s = strchr(short_spn, '.');
650 if (s) {
651 *s = '\0';
652 } else {
653 free(short_spn);
654 short_spn = NULL;
655 }
656
657 p_msrealm = strdup(p);
658 if (p_msrealm == NULL) {
659 errno = ENOMEM;
660 goto out;
661 }
662 s = strrchr(p_msrealm, '@');
663 if (s) {
664 *s = '/';
665 } else {
666 free(p_msrealm);
667 p_msrealm = NULL;
668 }
669
670 asprintf(&dn, "cn=%s, cn=Computers, %s", fqdn, CTX2BASE(context));
671 if (dn == NULL) {
672 ret = ENOMEM;
673 goto out;
674 }
675
676 a = &rattrs[0];
677 a->mod_op = LDAP_MOD_ADD;
678 a->mod_type = "objectClass";
679 a->mod_values = ocvals_spn;
680 a++;
681
682 a->mod_op = LDAP_MOD_ADD;
683 a->mod_type = "userAccountControl";
684 a->mod_values = useraccvals;
685 asprintf(&useraccvals[0], "%d",
686 uf_flags |
687 UF_PASSWD_NOT_EXPIRE |
688 UF_WORKSTATION_TRUST_ACCOUNT);
689 useraccvals[1] = NULL;
690 a++;
691
692 a->mod_op = LDAP_MOD_ADD;
693 a->mod_type = "sAMAccountName";
694 a->mod_values = samvals;
695 samvals[0] = samname;
696 samvals[1] = NULL;
697 a++;
698
699 a->mod_op = LDAP_MOD_ADD;
700 a->mod_type = "dNSHostName";
701 a->mod_values = dnsvals;
702 dnsvals[0] = (char *)fqdn;
703 dnsvals[1] = NULL;
704 a++;
705
706 /* XXX add even more spn's */
707 a->mod_op = LDAP_MOD_ADD;
708 a->mod_type = "servicePrincipalName";
709 a->mod_values = spnvals;
710 i = 0;
711 spnvals[i++] = p;
712 spnvals[i++] = realmless_p;
713 if (short_spn)
714 spnvals[i++] = short_spn;
715 if (p_msrealm)
716 spnvals[i++] = p_msrealm;
717 spnvals[i++] = NULL;
718 a++;
719
720 a->mod_op = LDAP_MOD_ADD;
721 a->mod_type = "userPrincipalName";
722 a->mod_values = upnvals;
723 upnvals[0] = p;
724 upnvals[1] = NULL;
725 a++;
726
727 a->mod_op = LDAP_MOD_ADD;
728 a->mod_type = "accountExpires";
729 a->mod_values = tv;
730 tv[0] = "9223372036854775807"; /* "never" */
731 tv[1] = NULL;
732 a++;
733
734 } else {
735 /* create user account */
736
737 a = &rattrs[0];
738 a->mod_op = LDAP_MOD_ADD;
739 a->mod_type = "userAccountControl";
740 a->mod_values = useraccvals;
741 asprintf(&useraccvals[0], "%d",
742 uf_flags |
743 UF_PASSWD_NOT_EXPIRE);
744 useraccvals[1] = NULL;
745 a++;
746
747 a->mod_op = LDAP_MOD_ADD;
748 a->mod_type = "sAMAccountName";
749 a->mod_values = samvals;
750 samvals[0] = realmless_p;
751 samvals[1] = NULL;
752 a++;
753
754 a->mod_op = LDAP_MOD_ADD;
755 a->mod_type = "userPrincipalName";
756 a->mod_values = upnvals;
757 upnvals[0] = p;
758 upnvals[1] = NULL;
759 a++;
760
761 a->mod_op = LDAP_MOD_ADD;
762 a->mod_type = "accountExpires";
763 a->mod_values = tv;
764 tv[0] = "9223372036854775807"; /* "never" */
765 tv[1] = NULL;
766 a++;
767 }
768
769 attrs[a - &rattrs[0]] = NULL;
770
771 ret = ldap_add_s(CTX2LP(context), dn, attrs);
772
773 out:
774 if (useraccvals[0])
775 free(useraccvals[0]);
776 if (realmless_p)
777 free(realmless_p);
778 if (samname)
779 free(samname);
780 if (short_spn)
781 free(short_spn);
782 if (p_msrealm)
783 free(p_msrealm);
784 free(p);
785
786 if (check_ldap(context, ret))
787 return KADM5_RPC_ERROR;
788
789 return 0;
790#else
791 krb5_set_error_message(context->context, KADM5_RPC_ERROR, "Function not implemented");
792 return KADM5_RPC_ERROR;
793#endif
794}
795
796static kadm5_ret_t
797kadm5_ad_delete_principal(void *server_handle, krb5_principal principal)
798{
799 kadm5_ad_context *context = server_handle;
800#ifdef OPENLDAP
801 char *p, *dn = NULL;
802 const char *fqdn;
803 int ret;
804
805 ret = ad_get_cred(context, NULL);
806 if (ret)
807 return ret;
808
809 ret = _kadm5_ad_connect(server_handle);
810 if (ret)
811 return ret;
812
813 fqdn = get_fqdn(context->context, principal);
814
815 ret = krb5_unparse_name(context->context, principal, &p);
816 if (ret)
817 return ret;
818
819 if (ad_find_entry(context, fqdn, p, &dn) != 0) {
820 free(p);
821 return KADM5_UNK_PRINC;
822 }
823
824 ret = ldap_delete_s(CTX2LP(context), dn);
825
826 free(dn);
827 free(p);
828
829 if (check_ldap(context, ret))
830 return KADM5_RPC_ERROR;
831 return 0;
832#else
833 krb5_set_error_message(context->context, KADM5_RPC_ERROR, "Function not implemented");
834 return KADM5_RPC_ERROR;
835#endif
836}
837
838static kadm5_ret_t
839kadm5_ad_destroy(void *server_handle)
840{
841 kadm5_ad_context *context = server_handle;
842
843 if (context->ccache)
844 krb5_cc_destroy(context->context, context->ccache);
845
846#ifdef OPENLDAP
847 {
848 LDAP *lp = CTX2LP(context);
849 if (lp)
850 ldap_unbind(lp);
851 if (context->base_dn)
852 free(context->base_dn);
853 }
854#endif
855 free(context->realm);
856 free(context->client_name);
857 krb5_free_principal(context->context, context->caller);
858 if(context->my_context)
859 krb5_free_context(context->context);
860 return 0;
861}
862
863static kadm5_ret_t
864kadm5_ad_flush(void *server_handle)
865{
866 kadm5_ad_context *context = server_handle;
867 krb5_set_error_message(context->context, KADM5_RPC_ERROR, "Function not implemented");
868 return KADM5_RPC_ERROR;
869}
870
871static kadm5_ret_t
872kadm5_ad_get_principal(void *server_handle,
873 krb5_principal principal,
874 kadm5_principal_ent_t entry,
875 uint32_t mask)
876{
877 kadm5_ad_context *context = server_handle;
878#ifdef OPENLDAP
879 LDAPMessage *m, *m0;
880 char **attr = NULL;
881 int attrlen = 0;
882 char *filter, *p, *q, *u;
883 int ret;
884
885 /*
886 * principal
887 * KADM5_PRINCIPAL | KADM5_KVNO | KADM5_ATTRIBUTES
888 */
889
890 /*
891 * return 0 || KADM5_DUP;
892 */
893
894 memset(entry, 0, sizeof(*entry));
895
896 if (mask & KADM5_KVNO)
897 laddattr(&attr, &attrlen, "msDS-KeyVersionNumber");
898
899 if (mask & KADM5_PRINCIPAL) {
900 laddattr(&attr, &attrlen, "userPrincipalName");
901 laddattr(&attr, &attrlen, "servicePrincipalName");
902 }
903 laddattr(&attr, &attrlen, "objectClass");
904 laddattr(&attr, &attrlen, "lastLogon");
905 laddattr(&attr, &attrlen, "badPwdCount");
906 laddattr(&attr, &attrlen, "badPasswordTime");
907 laddattr(&attr, &attrlen, "pwdLastSet");
908 laddattr(&attr, &attrlen, "accountExpires");
909 laddattr(&attr, &attrlen, "userAccountControl");
910
911 krb5_unparse_name_short(context->context, principal, &p);
912 krb5_unparse_name(context->context, principal, &u);
913
914 /* replace @ in domain part with a / */
915 q = strrchr(p, '@');
916 if (q && (p != q && *(q - 1) != '\\'))
917 *q = '/';
918
919 asprintf(&filter,
920 "(|(userPrincipalName=%s)(servicePrincipalName=%s)(servicePrincipalName=%s))",
921 u, p, u);
922 free(p);
923 free(u);
924
925 ret = ldap_search_s(CTX2LP(context), CTX2BASE(context),
926 LDAP_SCOPE_SUBTREE,
927 filter, attr, 0, &m);
928 free(attr);
929 if (check_ldap(context, ret))
930 return KADM5_RPC_ERROR;
931
932 if (ldap_count_entries(CTX2LP(context), m) > 0) {
933 char **vals;
934 m0 = ldap_first_entry(CTX2LP(context), m);
935 if (m0 == NULL) {
936 ldap_msgfree(m);
937 goto fail;
938 }
939#if 0
940 vals = ldap_get_values(CTX2LP(context), m0, "servicePrincipalName");
941 if (vals)
942 printf("servicePrincipalName %s\n", vals[0]);
943 vals = ldap_get_values(CTX2LP(context), m0, "userPrincipalName");
944 if (vals)
945 printf("userPrincipalName %s\n", vals[0]);
946 vals = ldap_get_values(CTX2LP(context), m0, "userAccountControl");
947 if (vals)
948 printf("userAccountControl %s\n", vals[0]);
949#endif
950 entry->princ_expire_time = 0;
951 if (mask & KADM5_PRINC_EXPIRE_TIME) {
952 vals = ldap_get_values(CTX2LP(context), m0, "accountExpires");
953 if (vals)
954 entry->princ_expire_time = nt2unixtime(vals[0]);
955 }
956 entry->last_success = 0;
957 if (mask & KADM5_LAST_SUCCESS) {
958 vals = ldap_get_values(CTX2LP(context), m0, "lastLogon");
959 if (vals)
960 entry->last_success = nt2unixtime(vals[0]);
961 }
962 if (mask & KADM5_LAST_FAILED) {
963 vals = ldap_get_values(CTX2LP(context), m0, "badPasswordTime");
964 if (vals)
965 entry->last_failed = nt2unixtime(vals[0]);
966 }
967 if (mask & KADM5_LAST_PWD_CHANGE) {
968 vals = ldap_get_values(CTX2LP(context), m0, "pwdLastSet");
969 if (vals)
970 entry->last_pwd_change = nt2unixtime(vals[0]);
971 }
972 if (mask & KADM5_FAIL_AUTH_COUNT) {
973 vals = ldap_get_values(CTX2LP(context), m0, "badPwdCount");
974 if (vals)
975 entry->fail_auth_count = atoi(vals[0]);
976 }
977 if (mask & KADM5_ATTRIBUTES) {
978 vals = ldap_get_values(CTX2LP(context), m0, "userAccountControl");
979 if (vals) {
980 uint32_t i;
981 i = atoi(vals[0]);
982 if (i & (UF_ACCOUNTDISABLE|UF_LOCKOUT))
983 entry->attributes |= KRB5_KDB_DISALLOW_ALL_TIX;
984 if ((i & UF_DONT_REQUIRE_PREAUTH) == 0)
985 entry->attributes |= KRB5_KDB_REQUIRES_PRE_AUTH;
986 if (i & UF_SMARTCARD_REQUIRED)
987 entry->attributes |= KRB5_KDB_REQUIRES_HW_AUTH;
988 if ((i & UF_WORKSTATION_TRUST_ACCOUNT) == 0)
989 entry->attributes |= KRB5_KDB_DISALLOW_SVR;
990 }
991 }
992 if (mask & KADM5_KVNO) {
993 vals = ldap_get_values(CTX2LP(context), m0,
994 "msDS-KeyVersionNumber");
995 if (vals)
996 entry->kvno = atoi(vals[0]);
997 else
998 entry->kvno = 0;
999 }
1000 ldap_msgfree(m);
1001 } else {
1002 return KADM5_UNK_PRINC;
1003 }
1004
1005 if (mask & KADM5_PRINCIPAL)
1006 krb5_copy_principal(context->context, principal, &entry->principal);
1007
1008 return 0;
1009 fail:
1010 return KADM5_RPC_ERROR;
1011#else
1012 krb5_set_error_message(context->context, KADM5_RPC_ERROR, "Function not implemented");
1013 return KADM5_RPC_ERROR;
1014#endif
1015}
1016
1017static kadm5_ret_t
1018kadm5_ad_get_principals(void *server_handle,
1019 const char *expression,
1020 char ***principals,
1021 int *count)
1022{
1023 kadm5_ad_context *context = server_handle;
1024
1025 /*
1026 * KADM5_PRINCIPAL | KADM5_KVNO | KADM5_ATTRIBUTES
1027 */
1028
1029#ifdef OPENLDAP
1030 kadm5_ret_t ret;
1031
1032 ret = ad_get_cred(context, NULL);
1033 if (ret)
1034 return ret;
1035
1036 ret = _kadm5_ad_connect(server_handle);
1037 if (ret)
1038 return ret;
1039
1040 krb5_set_error_message(context->context, KADM5_RPC_ERROR, "Function not implemented");
1041 return KADM5_RPC_ERROR;
1042#else
1043 krb5_set_error_message(context->context, KADM5_RPC_ERROR, "Function not implemented");
1044 return KADM5_RPC_ERROR;
1045#endif
1046}
1047
1048static kadm5_ret_t
1049kadm5_ad_get_privs(void *server_handle, uint32_t*privs)
1050{
1051 kadm5_ad_context *context = server_handle;
1052 krb5_set_error_message(context->context, KADM5_RPC_ERROR, "Function not implemented");
1053 return KADM5_RPC_ERROR;
1054}
1055
1056static kadm5_ret_t
1057kadm5_ad_modify_principal(void *server_handle,
1058 kadm5_principal_ent_t entry,
1059 uint32_t mask)
1060{
1061 kadm5_ad_context *context = server_handle;
1062
1063 /*
1064 * KADM5_ATTRIBUTES
1065 * KRB5_KDB_DISALLOW_ALL_TIX (| KADM5_KVNO)
1066 */
1067
1068#ifdef OPENLDAP
1069 LDAPMessage *m = NULL, *m0;
1070 kadm5_ret_t ret;
1071 char **attr = NULL;
1072 int attrlen = 0;
1073 char *p = NULL, *s = NULL, *q;
1074 char **vals;
1075 LDAPMod *attrs[4], rattrs[3], *a;
1076 char *uaf[2] = { NULL, NULL };
1077 char *kvno[2] = { NULL, NULL };
1078 char *tv[2] = { NULL, NULL };
1079 char *filter, *dn;
1080 int i;
1081
1082 for (i = 0; i < sizeof(rattrs)/sizeof(rattrs[0]); i++)
1083 attrs[i] = &rattrs[i];
1084 attrs[i] = NULL;
1085 a = &rattrs[0];
1086
1087 ret = _kadm5_ad_connect(server_handle);
1088 if (ret)
1089 return ret;
1090
1091 if (mask & KADM5_KVNO)
1092 laddattr(&attr, &attrlen, "msDS-KeyVersionNumber");
1093 if (mask & KADM5_PRINC_EXPIRE_TIME)
1094 laddattr(&attr, &attrlen, "accountExpires");
1095 if (mask & KADM5_ATTRIBUTES)
1096 laddattr(&attr, &attrlen, "userAccountControl");
1097 laddattr(&attr, &attrlen, "distinguishedName");
1098
1099 krb5_unparse_name(context->context, entry->principal, &p);
1100
1101 s = strdup(p);
1102
1103 q = strrchr(s, '@');
1104 if (q && (p != q && *(q - 1) != '\\'))
1105 *q = '\0';
1106
1107 asprintf(&filter,
1108 "(|(userPrincipalName=%s)(servicePrincipalName=%s))",
1109 s, s);
1110 free(p);
1111 free(s);
1112
1113 ret = ldap_search_s(CTX2LP(context), CTX2BASE(context),
1114 LDAP_SCOPE_SUBTREE,
1115 filter, attr, 0, &m);
1116 free(attr);
1117 free(filter);
1118 if (check_ldap(context, ret))
1119 return KADM5_RPC_ERROR;
1120
1121 if (ldap_count_entries(CTX2LP(context), m) <= 0) {
1122 ret = KADM5_RPC_ERROR;
1123 goto out;
1124 }
1125
1126 m0 = ldap_first_entry(CTX2LP(context), m);
1127
1128 if (mask & KADM5_ATTRIBUTES) {
1129 int32_t i;
1130
1131 vals = ldap_get_values(CTX2LP(context), m0, "userAccountControl");
1132 if (vals == NULL) {
1133 ret = KADM5_RPC_ERROR;
1134 goto out;
1135 }
1136
1137 i = atoi(vals[0]);
1138 if (i == 0)
1139 return KADM5_RPC_ERROR;
1140
1141 if (entry->attributes & KRB5_KDB_DISALLOW_ALL_TIX)
1142 i |= (UF_ACCOUNTDISABLE|UF_LOCKOUT);
1143 else
1144 i &= ~(UF_ACCOUNTDISABLE|UF_LOCKOUT);
1145 if (entry->attributes & KRB5_KDB_REQUIRES_PRE_AUTH)
1146 i &= ~UF_DONT_REQUIRE_PREAUTH;
1147 else
1148 i |= UF_DONT_REQUIRE_PREAUTH;
1149 if (entry->attributes & KRB5_KDB_REQUIRES_HW_AUTH)
1150 i |= UF_SMARTCARD_REQUIRED;
1151 else
1152 i &= UF_SMARTCARD_REQUIRED;
1153 if (entry->attributes & KRB5_KDB_DISALLOW_SVR)
1154 i &= ~UF_WORKSTATION_TRUST_ACCOUNT;
1155 else
1156 i |= UF_WORKSTATION_TRUST_ACCOUNT;
1157
1158 asprintf(&uaf[0], "%d", i);
1159
1160 a->mod_op = LDAP_MOD_REPLACE;
1161 a->mod_type = "userAccountControl";
1162 a->mod_values = uaf;
1163 a++;
1164 }
1165
1166 if (mask & KADM5_KVNO) {
1167 vals = ldap_get_values(CTX2LP(context), m0, "msDS-KeyVersionNumber");
1168 if (vals == NULL) {
1169 entry->kvno = 0;
1170 } else {
1171 asprintf(&kvno[0], "%d", entry->kvno);
1172
1173 a->mod_op = LDAP_MOD_REPLACE;
1174 a->mod_type = "msDS-KeyVersionNumber";
1175 a->mod_values = kvno;
1176 a++;
1177 }
1178 }
1179
1180 if (mask & KADM5_PRINC_EXPIRE_TIME) {
1181 long long wt;
1182 vals = ldap_get_values(CTX2LP(context), m0, "accountExpires");
1183 if (vals == NULL) {
1184 ret = KADM5_RPC_ERROR;
1185 goto out;
1186 }
1187
1188 wt = unix2nttime(entry->princ_expire_time);
1189
1190 asprintf(&tv[0], "%llu", wt);
1191
1192 a->mod_op = LDAP_MOD_REPLACE;
1193 a->mod_type = "accountExpires";
1194 a->mod_values = tv;
1195 a++;
1196 }
1197
1198 vals = ldap_get_values(CTX2LP(context), m0, "distinguishedName");
1199 if (vals == NULL) {
1200 ret = KADM5_RPC_ERROR;
1201 goto out;
1202 }
1203 dn = vals[0];
1204
1205 attrs[a - &rattrs[0]] = NULL;
1206
1207 ret = ldap_modify_s(CTX2LP(context), dn, attrs);
1208 if (check_ldap(context, ret))
1209 return KADM5_RPC_ERROR;
1210
1211 out:
1212 if (m)
1213 ldap_msgfree(m);
1214 if (uaf[0])
1215 free(uaf[0]);
1216 if (kvno[0])
1217 free(kvno[0]);
1218 if (tv[0])
1219 free(tv[0]);
1220 return ret;
1221#else
1222 krb5_set_error_message(context->context, KADM5_RPC_ERROR, "Function not implemented");
1223 return KADM5_RPC_ERROR;
1224#endif
1225}
1226
1227static kadm5_ret_t
1228kadm5_ad_randkey_principal(void *server_handle,
1229 krb5_principal principal,
1230 krb5_keyblock **keys,
1231 int *n_keys)
1232{
1233 kadm5_ad_context *context = server_handle;
1234
1235 /*
1236 * random key
1237 */
1238
1239#ifdef OPENLDAP
1240 krb5_data result_code_string, result_string;
1241 int result_code, plen;
1242 kadm5_ret_t ret;
1243 char *password;
1244
1245 *keys = NULL;
1246 *n_keys = 0;
1247
1248 {
1249 char p[64];
1250 krb5_generate_random_block(p, sizeof(p));
1251 plen = base64_encode(p, sizeof(p), &password);
1252 if (plen < 0)
1253 return ENOMEM;
1254 }
1255
1256 ret = ad_get_cred(context, NULL);
1257 if (ret) {
1258 free(password);
1259 return ret;
1260 }
1261
1262 krb5_data_zero (&result_code_string);
1263 krb5_data_zero (&result_string);
1264
1265 ret = krb5_set_password_using_ccache (context->context,
1266 context->ccache,
1267 password,
1268 principal,
1269 &result_code,
1270 &result_code_string,
1271 &result_string);
1272
1273 krb5_data_free (&result_code_string);
1274 krb5_data_free (&result_string);
1275
1276 if (ret == 0) {
1277
1278 *keys = malloc(sizeof(**keys) * 1);
1279 if (*keys == NULL) {
1280 ret = ENOMEM;
1281 goto out;
1282 }
1283 *n_keys = 1;
1284
1285 ret = krb5_string_to_key(context->context,
1286 ENCTYPE_ARCFOUR_HMAC_MD5,
1287 password,
1288 principal,
1289 &(*keys)[0]);
1290 memset(password, 0, sizeof(password));
1291 if (ret) {
1292 free(*keys);
1293 *keys = NULL;
1294 *n_keys = 0;
1295 goto out;
1296 }
1297 }
1298 memset(password, 0, plen);
1299 free(password);
1300 out:
1301 return ret;
1302#else
1303 *keys = NULL;
1304 *n_keys = 0;
1305
1306 krb5_set_error_message(context->context, KADM5_RPC_ERROR, "Function not implemented");
1307 return KADM5_RPC_ERROR;
1308#endif
1309}
1310
1311static kadm5_ret_t
1312kadm5_ad_rename_principal(void *server_handle,
1313 krb5_principal from,
1314 krb5_principal to)
1315{
1316 kadm5_ad_context *context = server_handle;
1317 krb5_set_error_message(context->context, KADM5_RPC_ERROR, "Function not implemented");
1318 return KADM5_RPC_ERROR;
1319}
1320
1321static kadm5_ret_t
1322kadm5_ad_chpass_principal_with_key(void *server_handle,
1323 krb5_principal princ,
1324 int n_key_data,
1325 krb5_key_data *key_data)
1326{
1327 kadm5_ad_context *context = server_handle;
1328 krb5_set_error_message(context->context, KADM5_RPC_ERROR, "Function not implemented");
1329 return KADM5_RPC_ERROR;
1330}
1331
1332static void
1333set_funcs(kadm5_ad_context *c)
1334{
1335#define SET(C, F) (C)->funcs.F = kadm5_ad_ ## F
1336 SET(c, chpass_principal);
1337 SET(c, chpass_principal_with_key);
1338 SET(c, create_principal);
1339 SET(c, delete_principal);
1340 SET(c, destroy);
1341 SET(c, flush);
1342 SET(c, get_principal);
1343 SET(c, get_principals);
1344 SET(c, get_privs);
1345 SET(c, modify_principal);
1346 SET(c, randkey_principal);
1347 SET(c, rename_principal);
1348}
1349
1350kadm5_ret_t
1351kadm5_ad_init_with_password_ctx(krb5_context context,
1352 const char *client_name,
1353 const char *password,
1354 const char *service_name,
1355 kadm5_config_params *realm_params,
1356 unsigned long struct_version,
1357 unsigned long api_version,
1358 void **server_handle)
1359{
1360 kadm5_ret_t ret;
1361 kadm5_ad_context *ctx;
1362
1363 ctx = malloc(sizeof(*ctx));
1364 if(ctx == NULL)
1365 return ENOMEM;
1366 memset(ctx, 0, sizeof(*ctx));
1367 set_funcs(ctx);
1368
1369 ctx->context = context;
1370 krb5_add_et_list (context, initialize_kadm5_error_table_r);
1371
1372 ret = krb5_parse_name(ctx->context, client_name, &ctx->caller);
1373 if(ret) {
1374 free(ctx);
1375 return ret;
1376 }
1377
1378 if(realm_params->mask & KADM5_CONFIG_REALM) {
1379 ret = 0;
1380 ctx->realm = strdup(realm_params->realm);
1381 if (ctx->realm == NULL)
1382 ret = ENOMEM;
1383 } else
1384 ret = krb5_get_default_realm(ctx->context, &ctx->realm);
1385 if (ret) {
1386 free(ctx);
1387 return ret;
1388 }
1389
1390 ctx->client_name = strdup(client_name);
1391
1392 if(password != NULL && *password != '\0')
1393 ret = ad_get_cred(ctx, password);
1394 else
1395 ret = ad_get_cred(ctx, NULL);
1396 if(ret) {
1397 kadm5_ad_destroy(ctx);
1398 return ret;
1399 }
1400
1401#ifdef OPENLDAP
1402 ret = _kadm5_ad_connect(ctx);
1403 if (ret) {
1404 kadm5_ad_destroy(ctx);
1405 return ret;
1406 }
1407#endif
1408
1409 *server_handle = ctx;
1410 return 0;
1411}
1412
1413kadm5_ret_t
1414kadm5_ad_init_with_password(const char *client_name,
1415 const char *password,
1416 const char *service_name,
1417 kadm5_config_params *realm_params,
1418 unsigned long struct_version,
1419 unsigned long api_version,
1420 void **server_handle)
1421{
1422 krb5_context context;
1423 kadm5_ret_t ret;
1424 kadm5_ad_context *ctx;
1425
1426 ret = krb5_init_context(&context);
1427 if (ret)
1428 return ret;
1429 ret = kadm5_ad_init_with_password_ctx(context,
1430 client_name,
1431 password,
1432 service_name,
1433 realm_params,
1434 struct_version,
1435 api_version,
1436 server_handle);
1437 if(ret) {
1438 krb5_free_context(context);
1439 return ret;
1440 }
1441 ctx = *server_handle;
1442 ctx->my_context = 1;
1443 return 0;
1444}
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