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