source3/rpc_server/srv_netlog_nt.c

   1 /*
   2  *  Unix SMB/CIFS implementation.
   3  *  RPC Pipe client / server routines
   4  *  Copyright (C) Andrew Tridgell              1992-1997,
   5  *  Copyright (C) Luke Kenneth Casson Leighton 1996-1997,
   6  *  Copyright (C) Paul Ashton                       1997.
   7  *  Copyright (C) Jeremy Allison               1998-2001.
   8  *  Copyright (C) Andrew Bartlett                   2001.
   9  *
  10  *  This program is free software; you can redistribute it and/or modify
  11  *  it under the terms of the GNU General Public License as published by
  12  *  the Free Software Foundation; either version 2 of the License, or
  13  *  (at your option) any later version.
  14  *
  15  *  This program is distributed in the hope that it will be useful,
  16  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  17  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  18  *  GNU General Public License for more details.
  19  *
  20  *  You should have received a copy of the GNU General Public License
  21  *  along with this program; if not, write to the Free Software
  22  *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  23  */
  24
  25 /* This is the implementation of the netlogon pipe. */
  26
  27 #include "includes.h"
  28
  29 extern struct dcinfo last_dcinfo;
  30 extern BOOL server_auth2_negotiated;
  31 extern userdom_struct current_user_info;
  32
  33 #undef DBGC_CLASS
  34 #define DBGC_CLASS DBGC_RPC_SRV
  35
  36 /*************************************************************************
  37  init_net_r_req_chal:
  38  *************************************************************************/
  39
  40 static void init_net_r_req_chal(NET_R_REQ_CHAL *r_c,
  41                                 DOM_CHAL *srv_chal, NTSTATUS status)
  42 {
  43         DEBUG(6,("init_net_r_req_chal: %d\n", __LINE__));
  44         memcpy(r_c->srv_chal.data, srv_chal->data, sizeof(srv_chal->data));
  45         r_c->status = status;
  46 }
  47
  48 /*************************************************************************
  49  error messages cropping up when using nltest.exe...
  50  *************************************************************************/
  51
  52 #define ERROR_NO_SUCH_DOMAIN   0x54b
  53 #define ERROR_NO_LOGON_SERVERS 0x51f
  54 #define NO_ERROR               0x0
  55
  56 /*************************************************************************
  57  net_reply_logon_ctrl:
  58  *************************************************************************/
  59
  60 NTSTATUS _net_logon_ctrl(pipes_struct *p, NET_Q_LOGON_CTRL *q_u,
  61                        NET_R_LOGON_CTRL *r_u)
  62 {
  63         uint32 flags = 0x0;
  64         uint32 pdc_connection_status = 0x00; /* Maybe a win32 error code? */
  65
  66         /* Setup the Logon Control response */
  67
  68         init_net_r_logon_ctrl(r_u, q_u->query_level, flags,
  69                               pdc_connection_status);
  70
  71         return r_u->status;
  72 }
  73
  74 /****************************************************************************
  75 Send a message to smbd to do a sam synchronisation
  76 **************************************************************************/
  77 static void send_sync_message(void)
  78 {
  79         TDB_CONTEXT *tdb;
  80
  81         tdb = tdb_open_log(lock_path("connections.tdb"), 0,
  82                            TDB_DEFAULT, O_RDONLY, 0);
  83
  84         if (!tdb) {
  85                 DEBUG(3, ("send_sync_message(): failed to open connections "
  86                           "database\n"));
  87                 return;
  88         }
  89
  90         DEBUG(3, ("sending sam synchronisation message\n"));
  91
  92         message_send_all(tdb, MSG_SMB_SAM_SYNC, NULL, 0, False, NULL);
  93
  94         tdb_close(tdb);
  95 }
  96
  97 /*************************************************************************
  98  net_reply_logon_ctrl2:
  99  *************************************************************************/
 100
 101 NTSTATUS _net_logon_ctrl2(pipes_struct *p, NET_Q_LOGON_CTRL2 *q_u, NET_R_LOGON_CTRL2 *r_u)
 102 {
 103         uint32 flags = 0x0;
 104         uint32 pdc_connection_status = 0x0;
 105         uint32 logon_attempts = 0x0;
 106         uint32 tc_status;
 107         fstring servername, domain, dc_name, dc_name2;
 108         struct in_addr dc_ip;
 109
 110         /* this should be \\global_myname() */
 111         unistr2_to_ascii(servername, &q_u->uni_server_name, sizeof(servername));
 112
 113         r_u->status = NT_STATUS_OK;
 114
 115         tc_status = ERROR_NO_SUCH_DOMAIN;
 116         fstrcpy( dc_name, "" );
 117
 118         switch ( q_u->function_code ) {
 119                 case NETLOGON_CONTROL_TC_QUERY:
 120                         unistr2_to_ascii(domain, &q_u->info.info6.domain, sizeof(domain));
 121
 122                         if ( !is_trusted_domain( domain ) )
 123                                 break;
 124
 125                         if ( !get_dc_name( domain, NULL, dc_name2, &dc_ip ) ) {
 126                                 tc_status = ERROR_NO_LOGON_SERVERS;
 127                                 break;
 128                         }
 129
 130                         fstr_sprintf( dc_name, "\\\\%s", dc_name2 );
 131
 132                         tc_status = NO_ERROR;
 133
 134                         break;
 135
 136                 case NETLOGON_CONTROL_REDISCOVER:
 137                         unistr2_to_ascii(domain, &q_u->info.info6.domain, sizeof(domain));
 138
 139                         if ( !is_trusted_domain( domain ) )
 140                                 break;
 141
 142                         if ( !get_dc_name( domain, NULL, dc_name2, &dc_ip ) ) {
 143                                 tc_status = ERROR_NO_LOGON_SERVERS;
 144                                 break;
 145                         }
 146
 147                         fstr_sprintf( dc_name, "\\\\%s", dc_name2 );
 148
 149                         tc_status = NO_ERROR;
 150
 151                         break;
 152
 153                 default:
 154                         /* no idea what this should be */
 155                         DEBUG(0,("_net_logon_ctrl2: unimplemented function level [%d]\n",
 156                                 q_u->function_code));
 157         }
 158
 159         /* prepare the response */
 160
 161         init_net_r_logon_ctrl2( r_u, q_u->query_level, flags,
 162                 pdc_connection_status, logon_attempts, tc_status, dc_name );
 163
 164         if (lp_server_role() == ROLE_DOMAIN_BDC)
 165                 send_sync_message();
 166
 167         return r_u->status;
 168 }
 169
 170 /*************************************************************************
 171  net_reply_trust_dom_list:
 172  *************************************************************************/
 173
 174 NTSTATUS _net_trust_dom_list(pipes_struct *p, NET_Q_TRUST_DOM_LIST *q_u, NET_R_TRUST_DOM_LIST *r_u)
 175 {
 176         const char *trusted_domain = "test_domain";
 177         uint32 num_trust_domains = 1;
 178
 179         DEBUG(6,("_net_trust_dom_list: %d\n", __LINE__));
 180
 181         /* set up the Trusted Domain List response */
 182         init_r_trust_dom(r_u, num_trust_domains, trusted_domain);
 183
 184         DEBUG(6,("_net_trust_dom_list: %d\n", __LINE__));
 185
 186         return r_u->status;
 187 }
 188
 189 /***********************************************************************************
 190  init_net_r_srv_pwset:
 191  ***********************************************************************************/
 192
 193 static void init_net_r_srv_pwset(NET_R_SRV_PWSET *r_s,
 194                                  DOM_CRED *srv_cred, NTSTATUS status)
 195 {
 196         DEBUG(5,("init_net_r_srv_pwset: %d\n", __LINE__));
 197
 198         memcpy(&r_s->srv_cred, srv_cred, sizeof(r_s->srv_cred));
 199         r_s->status = status;
 200
 201         DEBUG(5,("init_net_r_srv_pwset: %d\n", __LINE__));
 202 }
 203
 204 /******************************************************************
 205  gets a machine password entry.  checks access rights of the host.
 206  ******************************************************************/
 207
 208 static BOOL get_md4pw(char *md4pw, char *mach_acct)
 209 {
 210         SAM_ACCOUNT *sampass = NULL;
 211         const uint8 *pass;
 212         BOOL ret;
 213         uint32 acct_ctrl;
 214
 215 #if 0
 216     /*
 217      * Currently this code is redundent as we already have a filter
 218      * by hostname list. What this code really needs to do is to
 219      * get a hosts allowed/hosts denied list from the SAM database
 220      * on a per user basis, and make the access decision there.
 221      * I will leave this code here for now as a reminder to implement
 222      * this at a later date. JRA.
 223      */
 224
 225         if (!allow_access(lp_domain_hostsdeny(), lp_domain_hostsallow(),
 226                           client_name(), client_addr()))
 227         {
 228                 DEBUG(0,("get_md4pw: Workstation %s denied access to domain\n", mach_acct));
 229                 return False;
 230         }
 231 #endif /* 0 */
 232
 233         if(!NT_STATUS_IS_OK(pdb_init_sam(&sampass)))
 234                 return False;
 235
 236         /* JRA. This is ok as it is only used for generating the challenge. */
 237         become_root();
 238         ret=pdb_getsampwnam(sampass, mach_acct);
 239         unbecome_root();
 240
 241         if (ret==False) {
 242                 DEBUG(0,("get_md4pw: Workstation %s: no account in domain\n", mach_acct));
 243                 pdb_free_sam(&sampass);
 244                 return False;
 245         }
 246
 247         acct_ctrl = pdb_get_acct_ctrl(sampass);
 248         if (!(acct_ctrl & ACB_DISABLED) &&
 249             ((acct_ctrl & ACB_DOMTRUST) ||
 250              (acct_ctrl & ACB_WSTRUST) ||
 251              (acct_ctrl & ACB_SVRTRUST)) &&
 252             ((pass=pdb_get_nt_passwd(sampass)) != NULL)) {
 253                 memcpy(md4pw, pass, 16);
 254                 dump_data(5, md4pw, 16);
 255                 pdb_free_sam(&sampass);
 256                 return True;
 257         }
 258
 259         DEBUG(0,("get_md4pw: Workstation %s: no account in domain\n", mach_acct));
 260         pdb_free_sam(&sampass);
 261         return False;
 262
 263 }
 264
 265 /*************************************************************************
 266  _net_req_chal
 267  *************************************************************************/
 268
 269 NTSTATUS _net_req_chal(pipes_struct *p, NET_Q_REQ_CHAL *q_u, NET_R_REQ_CHAL *r_u)
 270 {
 271         NTSTATUS status = NT_STATUS_OK;
 272
 273         rpcstr_pull(p->dc.remote_machine,q_u->uni_logon_clnt.buffer,sizeof(fstring),q_u->uni_logon_clnt.uni_str_len*2,0);
 274
 275         /* create a server challenge for the client */
 276         /* Set these to random values. */
 277         generate_random_buffer(p->dc.srv_chal.data, 8);
 278
 279         memcpy(p->dc.srv_cred.challenge.data, p->dc.srv_chal.data, 8);
 280
 281         memcpy(p->dc.clnt_chal.data          , q_u->clnt_chal.data, sizeof(q_u->clnt_chal.data));
 282         memcpy(p->dc.clnt_cred.challenge.data, q_u->clnt_chal.data, sizeof(q_u->clnt_chal.data));
 283
 284         memset((char *)p->dc.sess_key, '\0', sizeof(p->dc.sess_key));
 285
 286         p->dc.challenge_sent = True;
 287         /* set up the LSA REQUEST CHALLENGE response */
 288         init_net_r_req_chal(r_u, &p->dc.srv_chal, status);
 289
 290         return status;
 291 }
 292
 293 /*************************************************************************
 294  init_net_r_auth:
 295  *************************************************************************/
 296
 297 static void init_net_r_auth(NET_R_AUTH *r_a, DOM_CHAL *resp_cred, NTSTATUS status)
 298 {
 299         memcpy(r_a->srv_chal.data, resp_cred->data, sizeof(resp_cred->data));
 300         r_a->status = status;
 301 }
 302
 303 /*************************************************************************
 304  _net_auth
 305  *************************************************************************/
 306
 307 NTSTATUS _net_auth(pipes_struct *p, NET_Q_AUTH *q_u, NET_R_AUTH *r_u)
 308 {
 309         NTSTATUS status = NT_STATUS_OK;
 310         DOM_CHAL srv_cred;
 311         UTIME srv_time;
 312         fstring mach_acct;
 313
 314         srv_time.time = 0;
 315
 316         rpcstr_pull(mach_acct, q_u->clnt_id.uni_acct_name.buffer,sizeof(fstring),q_u->clnt_id.uni_acct_name.uni_str_len*2,0);
 317
 318         if (p->dc.challenge_sent && get_md4pw((char *)p->dc.md4pw, mach_acct)) {
 319
 320                 /* from client / server challenges and md4 password, generate sess key */
 321                 cred_session_key(&p->dc.clnt_chal, &p->dc.srv_chal,
 322                                  p->dc.md4pw, p->dc.sess_key);
 323
 324                 /* check that the client credentials are valid */
 325                 if (cred_assert(&q_u->clnt_chal, p->dc.sess_key, &p->dc.clnt_cred.challenge, srv_time)) {
 326
 327                         /* create server challenge for inclusion in the reply */
 328                         cred_create(p->dc.sess_key, &p->dc.srv_cred.challenge, srv_time, &srv_cred);
 329
 330                         /* copy the received client credentials for use next time */
 331                         memcpy(p->dc.clnt_cred.challenge.data, q_u->clnt_chal.data, sizeof(q_u->clnt_chal.data));
 332                         memcpy(p->dc.srv_cred .challenge.data, q_u->clnt_chal.data, sizeof(q_u->clnt_chal.data));
 333
 334                         /* Save the machine account name. */
 335                         fstrcpy(p->dc.mach_acct, mach_acct);
 336
 337                         p->dc.authenticated = True;
 338
 339                 } else {
 340                         status = NT_STATUS_ACCESS_DENIED;
 341                 }
 342         } else {
 343                 status = NT_STATUS_ACCESS_DENIED;
 344         }
 345
 346         /* set up the LSA AUTH response */
 347         init_net_r_auth(r_u, &srv_cred, status);
 348
 349         return r_u->status;
 350 }
 351
 352 /*************************************************************************
 353  init_net_r_auth_2:
 354  *************************************************************************/
 355
 356 static void init_net_r_auth_2(NET_R_AUTH_2 *r_a,
 357                               DOM_CHAL *resp_cred, NEG_FLAGS *flgs, NTSTATUS status)
 358 {
 359         memcpy(r_a->srv_chal.data, resp_cred->data, sizeof(resp_cred->data));
 360         memcpy(&r_a->srv_flgs, flgs, sizeof(r_a->srv_flgs));
 361         r_a->status = status;
 362 }
 363
 364 /*************************************************************************
 365  _net_auth_2
 366  *************************************************************************/
 367
 368 NTSTATUS _net_auth_2(pipes_struct *p, NET_Q_AUTH_2 *q_u, NET_R_AUTH_2 *r_u)
 369 {
 370         NTSTATUS status = NT_STATUS_OK;
 371         DOM_CHAL srv_cred;
 372         UTIME srv_time;
 373         NEG_FLAGS srv_flgs;
 374         fstring mach_acct;
 375
 376         srv_time.time = 0;
 377
 378         if ( (lp_server_schannel() == True) &&
 379              ((q_u->clnt_flgs.neg_flags & NETLOGON_NEG_SCHANNEL) == 0) ) {
 380
 381                 /* schannel must be used, but client did not offer it. */
 382                 status = NT_STATUS_ACCESS_DENIED;
 383         }
 384
 385         rpcstr_pull(mach_acct, q_u->clnt_id.uni_acct_name.buffer,sizeof(fstring),q_u->clnt_id.uni_acct_name.uni_str_len*2,0);
 386
 387         if (p->dc.challenge_sent && get_md4pw((char *)p->dc.md4pw, mach_acct)) {
 388
 389                 /* from client / server challenges and md4 password, generate sess key */
 390                 cred_session_key(&p->dc.clnt_chal, &p->dc.srv_chal,
 391                                  p->dc.md4pw, p->dc.sess_key);
 392
 393                 /* check that the client credentials are valid */
 394                 if (cred_assert(&q_u->clnt_chal, p->dc.sess_key, &p->dc.clnt_cred.challenge, srv_time)) {
 395
 396                         /* create server challenge for inclusion in the reply */
 397                         cred_create(p->dc.sess_key, &p->dc.srv_cred.challenge, srv_time, &srv_cred);
 398
 399                         /* copy the received client credentials for use next time */
 400                         memcpy(p->dc.clnt_cred.challenge.data, q_u->clnt_chal.data, sizeof(q_u->clnt_chal.data));
 401                         memcpy(p->dc.srv_cred .challenge.data, q_u->clnt_chal.data, sizeof(q_u->clnt_chal.data));
 402
 403                         /* Save the machine account name. */
 404                         fstrcpy(p->dc.mach_acct, mach_acct);
 405
 406                         p->dc.authenticated = True;
 407
 408                 } else {
 409                         status = NT_STATUS_ACCESS_DENIED;
 410                 }
 411         } else {
 412                 status = NT_STATUS_ACCESS_DENIED;
 413         }
 414
 415         srv_flgs.neg_flags = 0x000001ff;
 416
 417         if (lp_server_schannel() != False) {
 418                 srv_flgs.neg_flags |= NETLOGON_NEG_SCHANNEL;
 419         }
 420
 421         /* set up the LSA AUTH 2 response */
 422         init_net_r_auth_2(r_u, &srv_cred, &srv_flgs, status);
 423
 424         if (NT_STATUS_IS_OK(status)) {
 425                 server_auth2_negotiated = True;
 426                 last_dcinfo = p->dc;
 427         }
 428
 429         return r_u->status;
 430 }
 431
 432 /*************************************************************************
 433  _net_srv_pwset
 434  *************************************************************************/
 435
 436 NTSTATUS _net_srv_pwset(pipes_struct *p, NET_Q_SRV_PWSET *q_u, NET_R_SRV_PWSET *r_u)
 437 {
 438         NTSTATUS status = NT_STATUS_ACCESS_DENIED;
 439         DOM_CRED srv_cred;
 440         pstring workstation;
 441         SAM_ACCOUNT *sampass=NULL;
 442         BOOL ret = False;
 443         unsigned char pwd[16];
 444         int i;
 445         uint32 acct_ctrl;
 446         const uchar *old_pw;
 447
 448         /* checks and updates credentials.  creates reply credentials */
 449         if (!(p->dc.authenticated && deal_with_creds(p->dc.sess_key, &p->dc.clnt_cred, &q_u->clnt_id.cred, &srv_cred)))
 450                 return NT_STATUS_INVALID_HANDLE;
 451
 452         reseed_client_creds(&p->dc.clnt_cred, &q_u->clnt_id.cred);
 453         memcpy(&p->dc.srv_cred, &p->dc.clnt_cred, sizeof(p->dc.clnt_cred));
 454
 455         DEBUG(5,("_net_srv_pwset: %d\n", __LINE__));
 456
 457         rpcstr_pull(workstation,q_u->clnt_id.login.uni_comp_name.buffer,
 458                     sizeof(workstation),q_u->clnt_id.login.uni_comp_name.uni_str_len*2,0);
 459
 460         DEBUG(3,("Server Password Set by Wksta:[%s] on account [%s]\n", workstation, p->dc.mach_acct));
 461
 462         pdb_init_sam(&sampass);
 463
 464         become_root();
 465         ret=pdb_getsampwnam(sampass, p->dc.mach_acct);
 466         unbecome_root();
 467
 468         /* Ensure the account exists and is a machine account. */
 469
 470         acct_ctrl = pdb_get_acct_ctrl(sampass);
 471
 472         if (!(ret
 473               && (acct_ctrl & ACB_WSTRUST ||
 474                       acct_ctrl & ACB_SVRTRUST ||
 475                       acct_ctrl & ACB_DOMTRUST))) {
 476                 pdb_free_sam(&sampass);
 477                 return NT_STATUS_NO_SUCH_USER;
 478         }
 479
 480         if (pdb_get_acct_ctrl(sampass) & ACB_DISABLED) {
 481                 pdb_free_sam(&sampass);
 482                 return NT_STATUS_ACCOUNT_DISABLED;
 483         }
 484
 485         cred_hash3( pwd, q_u->pwd, p->dc.sess_key, 0);
 486
 487         DEBUG(100,("Server password set : new given value was :\n"));
 488         for(i = 0; i < sizeof(pwd); i++)
 489                 DEBUG(100,("%02X ", pwd[i]));
 490         DEBUG(100,("\n"));
 491
 492         old_pw = pdb_get_nt_passwd(sampass);
 493
 494         if (old_pw && memcmp(pwd, old_pw, 16) == 0) {
 495                 /* Avoid backend modificiations and other fun if the
 496                    client changed the password to the *same thing* */
 497
 498                 ret = True;
 499         } else {
 500
 501                 /* LM password should be NULL for machines */
 502                 if (!pdb_set_lanman_passwd (sampass, NULL, PDB_CHANGED)) {
 503                         pdb_free_sam(&sampass);
 504                         return NT_STATUS_NO_MEMORY;
 505                 }
 506
 507                 if (!pdb_set_nt_passwd     (sampass, pwd, PDB_CHANGED)) {
 508                         pdb_free_sam(&sampass);
 509                         return NT_STATUS_NO_MEMORY;
 510                 }
 511
 512                 if (!pdb_set_pass_changed_now     (sampass)) {
 513                         pdb_free_sam(&sampass);
 514                         /* Not quite sure what this one qualifies as, but this will do */
 515                         return NT_STATUS_UNSUCCESSFUL;
 516                 }
 517
 518                 become_root();
 519                 ret = pdb_update_sam_account (sampass);
 520                 unbecome_root();
 521         }
 522         if (ret)
 523                 status = NT_STATUS_OK;
 524
 525         /* set up the LSA Server Password Set response */
 526         init_net_r_srv_pwset(r_u, &srv_cred, status);
 527
 528         pdb_free_sam(&sampass);
 529         return r_u->status;
 530 }
 531
 532
 533 /*************************************************************************
 534  _net_sam_logoff:
 535  *************************************************************************/
 536
 537 NTSTATUS _net_sam_logoff(pipes_struct *p, NET_Q_SAM_LOGOFF *q_u, NET_R_SAM_LOGOFF *r_u)
 538 {
 539         DOM_CRED srv_cred;
 540
 541         if (!get_valid_user_struct(p->vuid))
 542                 return NT_STATUS_NO_SUCH_USER;
 543
 544         /* checks and updates credentials.  creates reply credentials */
 545         if (!(p->dc.authenticated && deal_with_creds(p->dc.sess_key, &p->dc.clnt_cred,
 546                                                      &q_u->sam_id.client.cred, &srv_cred)))
 547                 return NT_STATUS_INVALID_HANDLE;
 548
 549         /* what happens if we get a logoff for an unknown user? */
 550         reseed_client_creds(&p->dc.clnt_cred, &q_u->sam_id.client.cred);
 551         memcpy(&p->dc.srv_cred, &p->dc.clnt_cred, sizeof(p->dc.clnt_cred));
 552
 553         /* XXXX maybe we want to say 'no', reject the client's credentials */
 554         r_u->buffer_creds = 1; /* yes, we have valid server credentials */
 555         memcpy(&r_u->srv_creds, &srv_cred, sizeof(r_u->srv_creds));
 556
 557         r_u->status = NT_STATUS_OK;
 558
 559         return r_u->status;
 560 }
 561
 562
 563 /*************************************************************************
 564  _net_sam_logon
 565  *************************************************************************/
 566
 567 NTSTATUS _net_sam_logon(pipes_struct *p, NET_Q_SAM_LOGON *q_u, NET_R_SAM_LOGON *r_u)
 568 {
 569         NTSTATUS status = NT_STATUS_OK;
 570         NET_USER_INFO_3 *usr_info = NULL;
 571         NET_ID_INFO_CTR *ctr = q_u->sam_id.ctr;
 572         DOM_CRED srv_cred;
 573         UNISTR2 *uni_samlogon_user = NULL;
 574         UNISTR2 *uni_samlogon_domain = NULL;
 575         UNISTR2 *uni_samlogon_workstation = NULL;
 576         fstring nt_username, nt_domain, nt_workstation;
 577         auth_usersupplied_info *user_info = NULL;
 578         auth_serversupplied_info *server_info = NULL;
 579         SAM_ACCOUNT *sampw;
 580         struct auth_context *auth_context = NULL;
 581
 582         usr_info = TALLOC_P(p->mem_ctx, NET_USER_INFO_3);
 583         if (!usr_info)
 584                 return NT_STATUS_NO_MEMORY;
 585
 586         ZERO_STRUCTP(usr_info);
 587
 588         /* store the user information, if there is any. */
 589         r_u->user = usr_info;
 590         r_u->switch_value = 0; /* indicates no info */
 591         r_u->auth_resp = 1; /* authoritative response */
 592         r_u->switch_value = 3; /* indicates type of validation user info */
 593
 594         if (!get_valid_user_struct(p->vuid))
 595                 return NT_STATUS_NO_SUCH_USER;
 596
 597
 598         if ( (lp_server_schannel() == True) && (!p->netsec_auth_validated) ) {
 599                 /* 'server schannel = yes' should enforce use of
 600                    schannel, the client did offer it in auth2, but
 601                    obviously did not use it. */
 602                 return NT_STATUS_ACCESS_DENIED;
 603         }
 604
 605         /* checks and updates credentials.  creates reply credentials */
 606         if (!(p->dc.authenticated && deal_with_creds(p->dc.sess_key, &p->dc.clnt_cred, &q_u->sam_id.client.cred, &srv_cred)))
 607                 return NT_STATUS_INVALID_HANDLE;
 608
 609         r_u->buffer_creds = 1; /* yes, we have valid server credentials */
 610         memcpy(&r_u->srv_creds, &srv_cred, sizeof(r_u->srv_creds));
 611
 612         /* find the username */
 613
 614         switch (q_u->sam_id.logon_level) {
 615         case INTERACTIVE_LOGON_TYPE:
 616                 uni_samlogon_user = &ctr->auth.id1.uni_user_name;
 617                 uni_samlogon_domain = &ctr->auth.id1.uni_domain_name;
 618
 619                 uni_samlogon_workstation = &ctr->auth.id1.uni_wksta_name;
 620
 621                 DEBUG(3,("SAM Logon (Interactive). Domain:[%s].  ", lp_workgroup()));
 622                 break;
 623         case NET_LOGON_TYPE:
 624                 uni_samlogon_user = &ctr->auth.id2.uni_user_name;
 625                 uni_samlogon_domain = &ctr->auth.id2.uni_domain_name;
 626                 uni_samlogon_workstation = &ctr->auth.id2.uni_wksta_name;
 627
 628                 DEBUG(3,("SAM Logon (Network). Domain:[%s].  ", lp_workgroup()));
 629                 break;
 630         default:
 631                 DEBUG(2,("SAM Logon: unsupported switch value\n"));
 632                 return NT_STATUS_INVALID_INFO_CLASS;
 633         } /* end switch */
 634
 635         rpcstr_pull(nt_username,uni_samlogon_user->buffer,sizeof(nt_username),uni_samlogon_user->uni_str_len*2,0);
 636         rpcstr_pull(nt_domain,uni_samlogon_domain->buffer,sizeof(nt_domain),uni_samlogon_domain->uni_str_len*2,0);
 637         rpcstr_pull(nt_workstation,uni_samlogon_workstation->buffer,sizeof(nt_workstation),uni_samlogon_workstation->uni_str_len*2,0);
 638
 639         DEBUG(3,("User:[%s@%s] Requested Domain:[%s]\n", nt_username,
 640                  nt_workstation, nt_domain));
 641
 642         fstrcpy(current_user_info.smb_name, nt_username);
 643         sub_set_smb_name(nt_username);
 644
 645         DEBUG(5,("Attempting validation level %d for unmapped username %s.\n", q_u->sam_id.ctr->switch_value, nt_username));
 646
 647         status = NT_STATUS_OK;
 648
 649         switch (ctr->switch_value) {
 650         case NET_LOGON_TYPE:
 651         {
 652                 const char *wksname = nt_workstation;
 653
 654                 if (!NT_STATUS_IS_OK(status = make_auth_context_fixed(&auth_context, ctr->auth.id2.lm_chal))) {
 655                         return status;
 656                 }
 657
 658                 /* For a network logon, the workstation name comes in with two
 659                  * backslashes in the front. Strip them if they are there. */
 660
 661                 if (*wksname == '\\') wksname++;
 662                 if (*wksname == '\\') wksname++;
 663
 664                 /* Standard challenge/response authenticaion */
 665                 if (!make_user_info_netlogon_network(&user_info,
 666                                                      nt_username, nt_domain,
 667                                                      wksname,
 668                                                      ctr->auth.id2.lm_chal_resp.buffer,
 669                                                      ctr->auth.id2.lm_chal_resp.str_str_len,
 670                                                      ctr->auth.id2.nt_chal_resp.buffer,
 671                                                      ctr->auth.id2.nt_chal_resp.str_str_len)) {
 672                         status = NT_STATUS_NO_MEMORY;
 673                 }
 674                 break;
 675         }
 676         case INTERACTIVE_LOGON_TYPE:
 677                 /* 'Interactive' autheticaion, supplies the password in its
 678                    MD4 form, encrypted with the session key.  We will
 679                    convert this to chellange/responce for the auth
 680                    subsystem to chew on */
 681         {
 682                 const uint8 *chal;
 683
 684                 if (!NT_STATUS_IS_OK(status = make_auth_context_subsystem(&auth_context))) {
 685                         return status;
 686                 }
 687
 688                 chal = auth_context->get_ntlm_challenge(auth_context);
 689
 690                 if (!make_user_info_netlogon_interactive(&user_info,
 691                                                          nt_username, nt_domain,
 692                                                          nt_workstation, chal,
 693                                                          ctr->auth.id1.lm_owf.data,
 694                                                          ctr->auth.id1.nt_owf.data,
 695                                                          p->dc.sess_key)) {
 696                         status = NT_STATUS_NO_MEMORY;
 697                 }
 698                 break;
 699         }
 700         default:
 701                 DEBUG(2,("SAM Logon: unsupported switch value\n"));
 702                 return NT_STATUS_INVALID_INFO_CLASS;
 703         } /* end switch */
 704
 705         if ( NT_STATUS_IS_OK(status) ) {
 706                 status = auth_context->check_ntlm_password(auth_context,
 707                         user_info, &server_info);
 708         }
 709
 710         (auth_context->free)(&auth_context);
 711         free_user_info(&user_info);
 712
 713         DEBUG(5, ("_net_sam_logon: check_password returned status %s\n",
 714                   nt_errstr(status)));
 715
 716         /* Check account and password */
 717
 718         if (!NT_STATUS_IS_OK(status)) {
 719                 free_server_info(&server_info);
 720                 return status;
 721         }
 722
 723         /* moved from right after deal_with_creds above, since we weren't
 724            supposed to update unless logon was successful */
 725
 726         reseed_client_creds(&p->dc.clnt_cred, &q_u->sam_id.client.cred);
 727         memcpy(&p->dc.srv_cred, &p->dc.clnt_cred, sizeof(p->dc.clnt_cred));
 728
 729         if (server_info->guest) {
 730                 /* We don't like guest domain logons... */
 731                 DEBUG(5,("_net_sam_logon: Attempted domain logon as GUEST denied.\n"));
 732                 free_server_info(&server_info);
 733                 return NT_STATUS_LOGON_FAILURE;
 734         }
 735
 736         /* This is the point at which, if the login was successful, that
 737            the SAM Local Security Authority should record that the user is
 738            logged in to the domain.  */
 739
 740         {
 741                 DOM_GID *gids = NULL;
 742                 const DOM_SID *user_sid = NULL;
 743                 const DOM_SID *group_sid = NULL;
 744                 DOM_SID domain_sid;
 745                 uint32 user_rid, group_rid;
 746
 747                 int num_gids = 0;
 748                 pstring my_name;
 749                 fstring user_sid_string;
 750                 fstring group_sid_string;
 751                 uchar user_session_key[16];
 752                 uchar lm_session_key[16];
 753                 uchar netlogon_sess_key[16];
 754
 755                 sampw = server_info->sam_account;
 756
 757                 /* set up pointer indicating user/password failed to be found */
 758                 usr_info->ptr_user_info = 0;
 759
 760                 user_sid = pdb_get_user_sid(sampw);
 761                 group_sid = pdb_get_group_sid(sampw);
 762
 763                 sid_copy(&domain_sid, user_sid);
 764                 sid_split_rid(&domain_sid, &user_rid);
 765
 766                 if (!sid_peek_check_rid(&domain_sid, group_sid, &group_rid)) {
 767                         DEBUG(1, ("_net_sam_logon: user %s\\%s has user sid %s\n but group sid %s.\nThe conflicting domain portions are not supported for NETLOGON calls\n",
 768                                   pdb_get_domain(sampw), pdb_get_username(sampw),
 769                                   sid_to_string(user_sid_string, user_sid),
 770                                   sid_to_string(group_sid_string, group_sid)));
 771                         return NT_STATUS_UNSUCCESSFUL;
 772                 }
 773
 774
 775                 if(server_info->login_server) {
 776                         pstrcpy(my_name, server_info->login_server);
 777                 } else {
 778                         pstrcpy(my_name, global_myname());
 779                 }
 780
 781                 if (!NT_STATUS_IS_OK(status
 782                                      = nt_token_to_group_list(p->mem_ctx,
 783                                                               &domain_sid,
 784                                                               server_info->ptok,
 785                                                               &num_gids,
 786                                                               &gids))) {
 787                         return status;
 788                 }
 789
 790                 ZERO_STRUCT(netlogon_sess_key);
 791                 memcpy(netlogon_sess_key, p->dc.sess_key, 8);
 792                 if (server_info->user_session_key.length) {
 793                         memcpy(user_session_key, server_info->user_session_key.data,
 794                                MIN(sizeof(user_session_key), server_info->user_session_key.length));
 795                         SamOEMhash(user_session_key, netlogon_sess_key, 16);
 796                 }
 797                 if (server_info->lm_session_key.length) {
 798                         memcpy(lm_session_key, server_info->lm_session_key.data,
 799                                MIN(sizeof(lm_session_key), server_info->lm_session_key.length));
 800                         SamOEMhash(lm_session_key, netlogon_sess_key, 16);
 801                 }
 802                 ZERO_STRUCT(netlogon_sess_key);
 803
 804                 init_net_user_info3(p->mem_ctx, usr_info,
 805                                     user_rid,
 806                                     group_rid,
 807                                     pdb_get_username(sampw),
 808                                     pdb_get_fullname(sampw),
 809                                     pdb_get_homedir(sampw),
 810                                     pdb_get_dir_drive(sampw),
 811                                     pdb_get_logon_script(sampw),
 812                                     pdb_get_profile_path(sampw),
 813                                     pdb_get_logon_time(sampw),
 814                                     get_time_t_max(),
 815                                     get_time_t_max(),
 816                                     pdb_get_pass_last_set_time(sampw),
 817                                     pdb_get_pass_can_change_time(sampw),
 818                                     pdb_get_pass_must_change_time(sampw),
 819
 820                                     0, /* logon_count */
 821                                     0, /* bad_pw_count */
 822                                     num_gids,    /* uint32 num_groups */
 823                                     gids    , /* DOM_GID *gids */
 824                                     0x20    , /* uint32 user_flgs (?) */
 825                                     server_info->user_session_key.length ? user_session_key : NULL,
 826                                     server_info->lm_session_key.length ? lm_session_key : NULL,
 827                                     my_name     , /* char *logon_srv */
 828                                     pdb_get_domain(sampw),
 829                                     &domain_sid,     /* DOM_SID *dom_sid */
 830                                     /* Should be users domain sid, not servers - for trusted domains */
 831
 832                                     NULL); /* char *other_sids */
 833                 ZERO_STRUCT(user_session_key);
 834                 ZERO_STRUCT(lm_session_key);
 835         }
 836         free_server_info(&server_info);
 837         return status;
 838 }
 839
 840 /*************************************************************************
 841  _ds_enum_dom_trusts
 842  *************************************************************************/
 843 #if 0   /* JERRY -- not correct */
 844 NTSTATUS _ds_enum_dom_trusts(pipes_struct *p, DS_Q_ENUM_DOM_TRUSTS *q_u,
 845                              DS_R_ENUM_DOM_TRUSTS *r_u)
 846 {
 847         NTSTATUS status = NT_STATUS_OK;
 848
 849         /* TODO: According to MSDN, the can only be executed against a
 850            DC or domain member running Windows 2000 or later.  Need
 851            to test against a standalone 2k server and see what it
 852            does.  A windows 2000 DC includes its own domain in the
 853            list.  --jerry */
 854
 855         return status;
 856 }
 857 #endif  /* JERRY */