1 #define LDAP_AUTH_OTHERKIND 0x86L
2 #define LDAP_AUTH_NEGOTIATE (LDAP_AUTH_OTHERKIND | 0x0400)
5 THIS CODE AND INFORMATION IS PROVIDED "AS IS" WITHOUT WARRANTY OF
6 ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING BUT NOT LIMITED
7 TO THE IMPLIED WARRANTIES OF MERCHANTABILITY AND/OR FITNESS FOR A
10 Copyright (C) 1999 Microsoft Corporation. All rights reserved.
18 Set a user's password using the
19 Kerberos Change Password Protocol (I-D) variant for Windows 2000
23 * lib/krb5/os/changepw.c
25 * Copyright 1990 by the Massachusetts Institute of Technology.
26 * All Rights Reserved.
28 * Export of this software from the United States of America may
29 * require a specific license from the United States Government.
30 * It is the responsibility of any person or organization contemplating
31 * export to obtain such a license before exporting.
33 * WITHIN THAT CONSTRAINT, permission to use, copy, modify, and
34 * distribute this software and its documentation for any purpose and
35 * without fee is hereby granted, provided that the above copyright
36 * notice appear in all copies and that both that copyright notice and
37 * this permission notice appear in supporting documentation, and that
38 * the name of M.I.T. not be used in advertising or publicity pertaining
39 * to distribution of the software without specific, written prior
40 * permission. M.I.T. makes no representations about the suitability of
41 * this software for any purpose. It is provided "as is" without express
42 * or implied warranty.
49 #include "port-sockets.h"
60 #include <sys/socket.h>
62 #include <sys/select.h>
68 #include <sys/timeb.h>
76 #define ULONG unsigned long
78 #ifndef krb5_is_krb_error
79 #define krb5_is_krb_error(dat)\
80 ((dat) && (dat)->length && ((dat)->data[0] == 0x7e ||\
81 (dat)->data[0] == 0x5e))
85 extern krb5_error_code decode_krb5_error
86 (const krb5_data *output, krb5_error **rep);
87 #define sleep(Seconds) Sleep(Seconds * 1000)
88 #define gethostbyname(Server) rgethostbyname(Server)
92 #if defined(_WIN32) && !defined(__CYGWIN32__)
94 #define ECONNABORTED WSAECONNABORTED
97 #define ECONNREFUSED WSAECONNREFUSED
100 #define EHOSTUNREACH WSAEHOSTUNREACH
102 #endif /* _WIN32 && !__CYGWIN32__ */
104 static const char rcsid[] = "$Id$";
106 static int frequency[26][26] =
107 { {4, 20, 28, 52, 2, 11, 28, 4, 32, 4, 6, 62, 23, 167, 2, 14, 0, 83, 76,
108 127, 7, 25, 8, 1, 9, 1}, /* aa - az */
109 {13, 0, 0, 0, 55, 0, 0, 0, 8, 2, 0, 22, 0, 0, 11, 0, 0, 15, 4, 2, 13, 0,
110 0, 0, 15, 0}, /* ba - bz */
111 {32, 0, 7, 1, 69, 0, 0, 33, 17, 0, 10, 9, 1, 0, 50, 3, 0, 10, 0, 28, 11,
112 0, 0, 0, 3, 0}, /* ca - cz */
113 {40, 16, 9, 5, 65, 18, 3, 9, 56, 0, 1, 4, 15, 6, 16, 4, 0, 21, 18, 53,
114 19, 5, 15, 0, 3, 0}, /* da - dz */
115 {84, 20, 55, 125, 51, 40, 19, 16, 50, 1, 4, 55, 54, 146, 35, 37, 6, 191,
116 149, 65, 9, 26, 21, 12, 5, 0}, /* ea - ez */
117 {19, 3, 5, 1, 19, 21, 1, 3, 30, 2, 0, 11, 1, 0, 51, 0, 0, 26, 8, 47, 6,
118 3, 3, 0, 2, 0}, /* fa - fz */
119 {20, 4, 3, 2, 35, 1, 3, 15, 18, 0, 0, 5, 1, 4, 21, 1, 1, 20, 9, 21, 9,
120 0, 5, 0, 1, 0}, /* ga - gz */
121 {101, 1, 3, 0, 270, 5, 1, 6, 57, 0, 0, 0, 3, 2, 44, 1, 0, 3, 10, 18, 6,
122 0, 5, 0, 3, 0}, /* ha - hz */
123 {40, 7, 51, 23, 25, 9, 11, 3, 0, 0, 2, 38, 25, 202, 56, 12, 1, 46, 79,
124 117, 1, 22, 0, 4, 0, 3}, /* ia - iz */
125 {3, 0, 0, 0, 5, 0, 0, 0, 1, 0, 0, 0, 0, 0, 4, 0, 0, 0, 0, 0, 3, 0, 0, 0,
127 {1, 0, 0, 0, 11, 0, 0, 0, 13, 0, 0, 0, 0, 2, 0, 0, 0, 0, 6, 2, 1, 0, 2,
128 0, 1, 0}, /* ka - kz */
129 {44, 2, 5, 12, 62, 7, 5, 2, 42, 1, 1, 53, 2, 2, 25, 1, 1, 2, 16, 23, 9,
130 0, 1, 0, 33, 0}, /* la - lz */
131 {52, 14, 1, 0, 64, 0, 0, 3, 37, 0, 0, 0, 7, 1, 17, 18, 1, 2, 12, 3, 8,
132 0, 1, 0, 2, 0}, /* ma - mz */
133 {42, 10, 47, 122, 63, 19, 106, 12, 30, 1, 6, 6, 9, 7, 54, 7, 1, 7, 44,
134 124, 6, 1, 15, 0, 12, 0}, /* na - nz */
135 {7, 12, 14, 17, 5, 95, 3, 5, 14, 0, 0, 19, 41, 134, 13, 23, 0, 91, 23,
136 42, 55, 16, 28, 0, 4, 1}, /* oa - oz */
137 {19, 1, 0, 0, 37, 0, 0, 4, 8, 0, 0, 15, 1, 0, 27, 9, 0, 33, 14, 7, 6, 0,
138 0, 0, 0, 0}, /* pa - pz */
139 {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 17, 0, 0,
140 0, 0, 0}, /* qa - qz */
141 {83, 8, 16, 23, 169, 4, 8, 8, 77, 1, 10, 5, 26, 16, 60, 4, 0, 24, 37,
142 55, 6, 11, 4, 0, 28, 0}, /* ra - rz */
143 {65, 9, 17, 9, 73, 13, 1, 47, 75, 3, 0, 7, 11, 12, 56, 17, 6, 9, 48,
144 116, 35, 1, 28, 0, 4, 0}, /* sa - sz */
145 {57, 22, 3, 1, 76, 5, 2, 330, 126, 1, 0, 14, 10, 6, 79, 7, 0, 49, 50,
146 56, 21, 2, 27, 0, 24, 0}, /* ta - tz */
147 {11, 5, 9, 6, 9, 1, 6, 0, 9, 0, 1, 19, 5, 31, 1, 15, 0, 47, 39, 31, 0,
148 3, 0, 0, 0, 0}, /* ua - uz */
149 {7, 0, 0, 0, 72, 0, 0, 0, 28, 0, 0, 0, 0, 0, 5, 0, 0, 0, 0, 0, 0, 0, 0,
150 0, 3, 0}, /* va - vz */
151 {36, 1, 1, 0, 38, 0, 0, 33, 36, 0, 0, 4, 1, 8, 15, 0, 0, 0, 4, 2, 0, 0,
152 1, 0, 0, 0}, /* wa - wz */
153 {1, 0, 2, 0, 0, 1, 0, 0, 3, 0, 0, 0, 0, 0, 1, 5, 0, 0, 0, 3, 0, 0, 1, 0,
155 {14, 5, 4, 2, 7, 12, 12, 6, 10, 0, 0, 3, 7, 5, 17, 3, 0, 4, 16, 30, 0,
156 0, 5, 0, 0, 0}, /* ya - yz */
157 {1, 0, 0, 0, 4, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
158 0, 0}}; /* za - zz */
161 * This MUST be equal to the sum of the equivalent rows above.
164 static int row_sums[26] =
165 {796,160,284,401,1276,262,199,539,777,
166 16,39,351,243,751,662,181,17,683,
167 662,968,248,115,180,17,162,5};
170 * Frequencies of starting characters
173 static int start_freq [26] =
174 {1299,425,725,271,375,470,93,223,1009,
175 24,20,355,379,319,823,618,21,317,
176 962,1991,271,104,516,6,16,14};
179 * This MUST be equal to the sum of all elements in the above array.
182 struct sockaddr_in kdc_server;
184 krb5_context context;
186 krb5_auth_context auth_context = NULL;
188 krb5_creds *credsp = NULL;
190 char connected_server[128];
192 static int total_sum = 11646;
194 int get_krb5_error(krb5_error_code rc, char *in, char *out);
195 int ad_connect(LDAP **ldap_handle, char *ldap_domain, char *dn_path,
196 char *Win2kPassword, char *Win2kUser, char *default_server,
197 int connect_to_kdc, char **ServerList);
198 int ad_kdc_connect(char *connectedServer);
199 int ad_server_connect(char *connectedServer, char *domain);
200 void ad_kdc_disconnect();
201 int compare_elements(const void *arg1, const void *arg2);
202 int convert_domain_to_dn(char *domain, char *dnp);
203 int set_password(char *user, char *password, char *domain);
205 int locate_ldap_server(char *domain, char **server_name);
208 void generate_password(char *password);
211 krb5_error_code encode_krb5_setpw
212 PROTOTYPE((const krb5_setpw *rep, krb5_data ** code));
215 krb5_error_code make_setpw_req(krb5_context context, krb5_auth_context auth_context,
216 krb5_data *ap_req, krb5_principal targprinc,
217 char *passwd, krb5_data *packet)
222 krb5_data *encoded_setpw;
223 krb5_replay_data replay;
225 register int count = 2;
227 memset(&setpw, 0, sizeof(krb5_setpw));
228 if (ret = krb5_auth_con_setflags(context, auth_context,
229 KRB5_AUTH_CONTEXT_DO_SEQUENCE))
231 setpw.targprinc = targprinc;
232 setpw.newpasswd.length = strlen(passwd);
233 setpw.newpasswd.data = passwd;
234 if ((ret = encode_krb5_setpw(&setpw, &encoded_setpw)))
236 if (ret = krb5_mk_priv(context, auth_context,
237 encoded_setpw, &cipherpw, &replay))
239 packet->length = 6 + ap_req->length + cipherpw.length;
240 packet->data = (char *) malloc(packet->length);
243 *ptr++ = (packet->length>>8) & 0xff;
244 *ptr++ = packet->length & 0xff;
248 /* ap_req length, big-endian */
249 *ptr++ = (ap_req->length>>8) & 0xff;
250 *ptr++ = ap_req->length & 0xff;
252 memcpy(ptr, ap_req->data, ap_req->length);
253 ptr += ap_req->length;
254 /* krb-priv of password */
255 memcpy(ptr, cipherpw.data, cipherpw.length);
257 /* krb5_free_data_contents(context, &cipherpw);*/
258 krb5_free_data(context, encoded_setpw);
262 krb5_error_code get_setpw_rep(krb5_context context, krb5_auth_context auth_context,
263 krb5_data *packet, int *result_code,
264 krb5_data *result_data)
271 krb5_data cipherresult;
272 krb5_data clearresult;
273 krb5_error *krberror;
274 krb5_replay_data replay;
275 krb5_ap_rep_enc_part *ap_rep_enc;
277 if (packet->length < 4)
278 return(KRB5KRB_AP_ERR_MODIFIED);
280 if (krb5_is_krb_error(packet))
282 ret = decode_krb5_error(packet, &krberror);
285 ret = krberror->error;
286 krb5_free_error(context, krberror);
290 plen = (*ptr++ & 0xff);
291 plen = (plen<<8) | (*ptr++ & 0xff);
292 if (plen != (int)packet->length)
293 return(KRB5KRB_AP_ERR_MODIFIED);
294 vno = (*ptr++ & 0xff);
295 vno = (vno<<8) | (*ptr++ & 0xff);
296 if (vno != KRB5_KPASSWD_VERS_SETPW && vno != KRB5_KPASSWD_VERS_CHANGEPW)
297 return(KRB5KDC_ERR_BAD_PVNO);
298 /* read, check ap-rep length */
299 ap_rep.length = (*ptr++ & 0xff);
300 ap_rep.length = (ap_rep.length<<8) | (*ptr++ & 0xff);
301 if (ptr + ap_rep.length >= packet->data + packet->length)
302 return(KRB5KRB_AP_ERR_MODIFIED);
307 ptr += ap_rep.length;
308 if (ret = krb5_rd_rep(context, auth_context, &ap_rep, &ap_rep_enc))
310 krb5_free_ap_rep_enc_part(context, ap_rep_enc);
311 /* extract and decrypt the result */
312 cipherresult.data = ptr;
313 cipherresult.length = (packet->data + packet->length) - ptr;
314 /* XXX there's no api to do this right. The problem is that
315 if there's a remote subkey, it will be used. This is
316 not what the spec requires */
317 ret = krb5_rd_priv(context, auth_context, &cipherresult, &clearresult,
324 cipherresult.data = ptr;
325 cipherresult.length = (packet->data + packet->length) - ptr;
327 if (ret = krb5_rd_error(context, &cipherresult, &krberror))
330 clearresult = krberror->e_data;
332 if (clearresult.length < 2)
334 ret = KRB5KRB_AP_ERR_MODIFIED;
337 ptr = clearresult.data;
338 *result_code = (*ptr++ & 0xff);
339 *result_code = (*result_code<<8) | (*ptr++ & 0xff);
340 if ((*result_code < KRB5_KPASSWD_SUCCESS) ||
341 (*result_code > KRB5_KPASSWD_ACCESSDENIED))
343 ret = KRB5KRB_AP_ERR_MODIFIED;
346 /* all success replies should be authenticated/encrypted */
347 if ((ap_rep.length == 0) && (*result_code == KRB5_KPASSWD_SUCCESS))
349 ret = KRB5KRB_AP_ERR_MODIFIED;
352 result_data->length = (clearresult.data + clearresult.length) - ptr;
353 if (result_data->length)
355 result_data->data = (char *) malloc(result_data->length);
356 memcpy(result_data->data, ptr, result_data->length);
359 result_data->data = NULL;
363 free(clearresult.data);
365 krb5_free_error(context, krberror);
369 krb5_error_code kdc_set_password(krb5_context context, krb5_ccache ccache,
370 char *newpw, char *user, char *domain,
375 krb5_data result_string;
376 krb5_address local_kaddr;
377 krb5_address remote_kaddr;
380 krb5_error_code code;
381 struct sockaddr local_addr;
382 struct sockaddr remote_addr;
386 int local_result_code;
388 krb5_principal targprinc;
389 struct timeval TimeVal;
392 memset(&local_addr, 0, sizeof(local_addr));
393 memset(&local_kaddr, 0, sizeof(local_kaddr));
394 memset(&result_string, 0, sizeof(result_string));
395 memset(&remote_kaddr, 0, sizeof(remote_kaddr));
396 memset(&chpw_snd, 0, sizeof(krb5_data));
397 memset(&chpw_rcv, 0, sizeof(krb5_data));
398 memset(userrealm, '\0', sizeof(userrealm));
401 chpw_rcv.length = 1500;
402 chpw_rcv.data = (char *) calloc(1, chpw_rcv.length);
404 for (i = 0; i < (int)strlen(domain); i++)
405 userrealm[i] = toupper(domain[i]);
407 sprintf(temp, "%s@%s", user, userrealm);
408 krb5_parse_name(context, temp, &targprinc);
412 memset(&creds, 0, sizeof(creds));
413 memset(&ap_req, 0, sizeof(krb5_data));
414 sprintf(temp, "%s@%s", "kadmin/changepw", userrealm);
415 if (code = krb5_parse_name(context, temp, &creds.server))
417 if (code = krb5_cc_get_principal(context, ccache, &creds.client))
419 if (code = krb5_get_credentials(context, 0, ccache, &creds, &credsp))
421 if (code = krb5_mk_req_extended(context, &auth_context, AP_OPTS_USE_SUBKEY,
422 NULL, credsp, &ap_req))
426 addrlen = sizeof(local_addr);
427 if (getsockname(kdc_socket, &local_addr, &addrlen) < 0)
429 code = KDC_GETSOCKNAME_ERROR;
432 if (((struct sockaddr_in *)&local_addr)->sin_addr.s_addr != 0)
434 local_kaddr.addrtype = ADDRTYPE_INET;
436 sizeof(((struct sockaddr_in *) &local_addr)->sin_addr);
437 local_kaddr.contents =
438 (char *) &(((struct sockaddr_in *) &local_addr)->sin_addr);
442 krb5_address **addrs;
443 krb5_os_localaddr(context, &addrs);
444 local_kaddr.magic = addrs[0]->magic;
445 local_kaddr.addrtype = addrs[0]->addrtype;
446 local_kaddr.length = addrs[0]->length;
447 local_kaddr.contents = calloc(1, addrs[0]->length);
448 memcpy(local_kaddr.contents, addrs[0]->contents, addrs[0]->length);
449 krb5_free_addresses(context, addrs);
452 addrlen = sizeof(remote_addr);
453 if (getpeername(kdc_socket, &remote_addr, &addrlen) < 0)
455 code = KDC_GETPEERNAME_ERROR;
458 remote_kaddr.addrtype = ADDRTYPE_INET;
459 remote_kaddr.length = sizeof(((struct sockaddr_in *) &remote_addr)->sin_addr);
460 remote_kaddr.contents = (char *) &(((struct sockaddr_in *) &remote_addr)->sin_addr);
462 if (code = krb5_auth_con_setaddrs(context, auth_context, &local_kaddr, NULL))
464 if (code = make_setpw_req(context, auth_context, &ap_req,
465 targprinc, newpw, &chpw_snd))
468 for (i = 0; i < 3; i++)
470 if ((cc = sendto(kdc_socket, chpw_snd.data, chpw_snd.length, 0,
472 0)) != (int)chpw_snd.length)
474 code = KDC_SEND_ERROR;
482 FD_SET(kdc_socket, &readfds);
483 nfds = kdc_socket + 1;
484 code = select(nfds, &readfds, NULL, NULL, &TimeVal);
485 if ((code == 0) || (code == SOCKET_ERROR))
487 code = KDC_RECEIVE_TIMEOUT;
492 if ((cc = recvfrom(kdc_socket, chpw_rcv.data, chpw_rcv.length, 0,
495 code = KDC_RECEIVE_TIMEOUT;
499 chpw_rcv.length = cc;
500 if (code = krb5_auth_con_setaddrs(context, auth_context, NULL, &remote_kaddr))
505 local_result_code = 0;
506 code = get_setpw_rep(context, auth_context, &chpw_rcv,
507 &local_result_code, &result_string);
509 if (local_result_code)
511 if (local_result_code == KRB5_KPASSWD_SOFTERROR)
512 local_result_code = KRB5_KPASSWD_SUCCESS;
513 *result_code = local_result_code;
515 if ((code == 0) && (local_result_code == 0))
521 if (chpw_snd.data != NULL)
523 if (chpw_rcv.data != NULL)
525 if (targprinc != NULL)
526 krb5_free_principal(context, targprinc);
530 int set_password(char *user, char *password, char *domain)
533 krb5_error_code retval;
534 char pw[PW_LENGTH+1];
536 memset(pw, '\0', sizeof(pw));
537 if (strlen(password) != 0)
538 strcpy(pw, password);
540 generate_password(pw);
542 retval = kdc_set_password(context, ccache, pw, user, domain, &res_code);
549 void generate_password(char *password)
560 for (line = 22; line; --line)
562 for (word = 7; word; --word)
564 position = myrandom()%total_sum;
565 for(row_position = 0, j = 0; position >= row_position; row_position += start_freq[j], j++)
567 *(pwp = password) = j + 'a' - 1;
568 for (nchars = PW_LENGTH-1; nchars; --nchars)
572 position = myrandom()%row_sums[i];
573 for (row_position = 0, j = 0; position >= row_position; row_position += frequency[i][j], j++)
589 struct _timeb timebuffer;
600 srand(timebuffer.time ^ timebuffer.millitm ^ pid);
602 gettimeofday(&tv, (struct timezone *) NULL);
603 srandom(tv.tv_sec ^ tv.tv_usec ^ pid);
609 int get_krb5_error(krb5_error_code rc, char *in, char *out)
618 krb5Error = ((int)(rc & 255));
619 sprintf(out, "%s: %s(%ld)", in, error_message(rc), krb5Error);
625 case KDC_RECEIVE_TIMEOUT:
628 sprintf(out, "%s: %s(%d)", in, "Receive timeout", rc);
631 case KDC_RECEIVE_ERROR:
634 sprintf(out, "%s: %s(%d)", in, "Receive error", rc);
637 case KRB5_KPASSWD_MALFORMED:
639 sprintf(out, "%s: %s(%d)", in, "malformed password", rc);
642 case KRB5_KPASSWD_HARDERROR:
644 sprintf(out, "%s: %s(%d)", in, "hard error", rc);
647 case KRB5_KPASSWD_AUTHERROR:
650 sprintf(out, "%s: %s(%d)", in, "authentication error", rc);
653 case KRB5_KPASSWD_SOFTERROR:
656 sprintf(out, "%s: %s(%d)", in, "soft error", rc);
659 case KRB5_KPASSWD_ACCESSDENIED:
661 sprintf(out, "%s: %s(%d)", in, "Access denied", rc);
667 sprintf(out, "%s: %s(%d)", in, "Send error", rc);
670 case KDC_GETSOCKNAME_ERROR:
673 sprintf(out, "%s: %s(%d)", in, "Socket error - getsockname", rc);
676 case KDC_GETPEERNAME_ERROR:
679 sprintf(out, "%s: %s(%d)", in, "Socket error - getpeername", rc);
684 sprintf(out, "%s: %s(%d)", in, "unknown error", rc);
692 int ad_connect(LDAP **ldap_handle, char *ldap_domain, char *dn_path,
693 char *Win2kPassword, char *Win2kUser, char *default_server,
694 int connect_to_kdc, char **ServerList)
699 char *server_name[MAX_SERVER_NAMES];
700 static char temp[128];
701 ULONG version = LDAP_VERSION3;
703 int Max_wait_time = 1000;
704 int Max_size_limit = LDAP_NO_LIMIT;
706 if (strlen(ldap_domain) == 0)
709 convert_domain_to_dn(ldap_domain, dn_path);
710 if (strlen(dn_path) == 0)
714 while (ServerList[Count] != NULL)
717 if ((Count == 0) && (connect_to_kdc))
720 memset(server_name, 0, sizeof(server_name[0]) * MAX_SERVER_NAMES);
721 if (locate_ldap_server(ldap_domain, server_name) == -1)
724 for (i = 0; i < MAX_SERVER_NAMES; i++)
726 if (server_name[i] != NULL)
728 if (Count >= MAX_SERVER_NAMES)
730 free(server_name[i]);
731 server_name[i] = NULL;
734 for (k = 0; k < (int)strlen(server_name[i]); k++)
735 server_name[i][k] = toupper(server_name[i][k]);
736 for (k = 0; k < Count; k++)
738 if (!strcasecmp(server_name[i], ServerList[k]))
740 free(server_name[i]);
741 server_name[i] = NULL;
747 ServerList[Count] = calloc(1, 256);
748 strcpy(ServerList[Count], server_name[i]);
749 ServerList[Count] = (char *)strdup((char *)server_name[i]);
751 free(server_name[i]);
756 for (i = 0; i < Count; i++)
758 if (ServerList[i] == NULL)
761 if (((*ldap_handle) = ldap_open(ServerList[i], LDAP_PORT)) != NULL)
763 rc = ldap_set_option((*ldap_handle), LDAP_OPT_PROTOCOL_VERSION, &version);
764 rc = ldap_set_option((*ldap_handle), LDAP_OPT_TIMELIMIT,
765 (void *)&Max_wait_time);
766 rc = ldap_set_option((*ldap_handle), LDAP_OPT_SIZELIMIT,
767 (void *)&Max_size_limit);
768 rc = ldap_set_option((*ldap_handle), LDAP_OPT_REFERRALS, LDAP_OPT_OFF);
769 rc = ldap_adgssapi_bind((*ldap_handle), dn_path, 0);
770 if (rc == LDAP_SUCCESS)
774 if (!ad_server_connect(ServerList[i], ldap_domain))
776 ldap_unbind_s((*ldap_handle));
777 (*ldap_handle) = NULL;
781 if (strlen(default_server) == 0)
782 strcpy(default_server, ServerList[i]);
783 strcpy(connected_server, ServerList[i]);
788 (*ldap_handle) = NULL;
792 if ((*ldap_handle) == NULL)
797 int ad_server_connect(char *connectedServer, char *domain)
805 unsigned short port = KDC_PORT;
809 memset(&ccache, 0, sizeof(ccache));
810 memset(&creds, 0, sizeof(creds));
811 memset(userrealm, '\0', sizeof(userrealm));
814 if (krb5_init_context(&context))
816 if (krb5_cc_default(context, &ccache))
819 for (i = 0; i < (int)strlen(domain); i++)
820 userrealm[i] = toupper(domain[i]);
821 sprintf(temp, "%s@%s", "kadmin/changepw", userrealm);
822 if (krb5_parse_name(context, temp, &creds.server))
824 if (krb5_cc_get_principal(context, ccache, &creds.client))
826 if (krb5_get_credentials(context, 0, ccache, &creds, &credsp))
829 rc = ad_kdc_connect(connectedServer);
835 krb5_cc_close(context, ccache);
836 krb5_free_context(context);
838 krb5_free_cred_contents(context, &creds);
840 krb5_free_creds(context, credsp);
845 int ad_kdc_connect(char *connectedServer)
851 hp = gethostbyname(connectedServer);
854 memset(&kdc_server, 0, sizeof(kdc_server));
855 memcpy(&(kdc_server.sin_addr),hp->h_addr_list[0],hp->h_length);
856 kdc_server.sin_family = hp->h_addrtype;
857 kdc_server.sin_port = htons(KDC_PORT);
859 if ((kdc_socket = socket(AF_INET, SOCK_DGRAM, 0)) == INVALID_SOCKET)
861 if (connect(kdc_socket, (struct sockaddr*)&kdc_server, sizeof(kdc_server)) == SOCKET_ERROR)
869 void ad_kdc_disconnect()
872 if (auth_context != NULL)
874 krb5_auth_con_free(context, auth_context);
875 if (ap_req.data != NULL)
877 krb5_free_cred_contents(context, &creds);
879 krb5_free_creds(context, credsp);
885 krb5_cc_close(context, ccache);
886 krb5_free_context(context);
888 closesocket(kdc_socket);
892 int convert_domain_to_dn(char *domain, char *dnp)
898 memset(dn, '\0', sizeof(dn));
901 for (fp = domain; *fp; fp++)
916 int compare_elements(const void *arg1, const void *arg2)
920 rc = strcmp((char*)arg1, (char*)arg2);