source/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 #undef DBGC_CLASS
  30 #define DBGC_CLASS DBGC_RPC_SRV
  31
  32 /*************************************************************************
  33  init_net_r_req_chal:
  34  *************************************************************************/
  35
  36 static void init_net_r_req_chal(NET_R_REQ_CHAL *r_c,
  37                                 DOM_CHAL *srv_chal, NTSTATUS status)
  38 {
  39         DEBUG(6,("init_net_r_req_chal: %d\n", __LINE__));
  40         memcpy(r_c->srv_chal.data, srv_chal->data, sizeof(srv_chal->data));
  41         r_c->status = status;
  42 }
  43
  44 /*************************************************************************
  45  error messages cropping up when using nltest.exe...
  46  *************************************************************************/
  47
  48 #define ERROR_NO_SUCH_DOMAIN   0x54b
  49 #define ERROR_NO_LOGON_SERVERS 0x51f
  50 #define NO_ERROR               0x0
  51
  52 /*************************************************************************
  53  net_reply_logon_ctrl:
  54  *************************************************************************/
  55
  56 /* Some flag values reverse engineered from NLTEST.EXE */
  57
  58 #define LOGON_CTRL_IN_SYNC          0x00
  59 #define LOGON_CTRL_REPL_NEEDED      0x01
  60 #define LOGON_CTRL_REPL_IN_PROGRESS 0x02
  61
  62 NTSTATUS _net_logon_ctrl(pipes_struct *p, NET_Q_LOGON_CTRL *q_u,
  63                        NET_R_LOGON_CTRL *r_u)
  64 {
  65         uint32 flags = 0x0;
  66         uint32 pdc_connection_status = 0x00; /* Maybe a win32 error code? */
  67
  68         /* Setup the Logon Control response */
  69
  70         init_net_r_logon_ctrl(r_u, q_u->query_level, flags,
  71                               pdc_connection_status);
  72
  73         return r_u->status;
  74 }
  75
  76 /****************************************************************************
  77 Send a message to smbd to do a sam synchronisation
  78 **************************************************************************/
  79 static void send_sync_message(void)
  80 {
  81         TDB_CONTEXT *tdb;
  82
  83         tdb = tdb_open_log(lock_path("connections.tdb"), 0,
  84                            TDB_DEFAULT, O_RDONLY, 0);
  85
  86         if (!tdb) {
  87                 DEBUG(3, ("send_sync_message(): failed to open connections "
  88                           "database\n"));
  89                 return;
  90         }
  91
  92         DEBUG(3, ("sending sam synchronisation message\n"));
  93
  94         message_send_all(tdb, MSG_SMB_SAM_SYNC, NULL, 0, False, NULL);
  95
  96         tdb_close(tdb);
  97 }
  98
  99 /*************************************************************************
 100  net_reply_logon_ctrl2:
 101  *************************************************************************/
 102
 103 NTSTATUS _net_logon_ctrl2(pipes_struct *p, NET_Q_LOGON_CTRL2 *q_u, NET_R_LOGON_CTRL2 *r_u)
 104 {
 105         uint32 flags = 0x0;
 106         uint32 pdc_connection_status = 0x0;
 107         uint32 logon_attempts = 0x0;
 108         uint32 tc_status;
 109         fstring servername, domain, dc_name, dc_name2;
 110         struct in_addr dc_ip;
 111
 112         /* this should be \\global_myname() */
 113         unistr2_to_ascii(servername, &q_u->uni_server_name, sizeof(servername));
 114
 115         r_u->status = NT_STATUS_OK;
 116
 117         tc_status = ERROR_NO_SUCH_DOMAIN;
 118         fstrcpy( dc_name, "" );
 119
 120         switch ( q_u->function_code ) {
 121                 case NETLOGON_CONTROL_TC_QUERY:
 122                         unistr2_to_ascii(domain, &q_u->info.info6.domain, sizeof(domain));
 123
 124                         if ( !is_trusted_domain( domain ) )
 125                                 break;
 126
 127                         if ( !get_dc_name( domain, NULL, dc_name2, &dc_ip ) ) {
 128                                 tc_status = ERROR_NO_LOGON_SERVERS;
 129                                 break;
 130                         }
 131
 132                         fstr_sprintf( dc_name, "\\\\%s", dc_name2 );
 133
 134                         tc_status = NO_ERROR;
 135
 136                         break;
 137
 138                 case NETLOGON_CONTROL_REDISCOVER:
 139                         unistr2_to_ascii(domain, &q_u->info.info6.domain, sizeof(domain));
 140
 141                         if ( !is_trusted_domain( domain ) )
 142                                 break;
 143
 144                         if ( !get_dc_name( domain, NULL, dc_name2, &dc_ip ) ) {
 145                                 tc_status = ERROR_NO_LOGON_SERVERS;
 146                                 break;
 147                         }
 148
 149                         fstr_sprintf( dc_name, "\\\\%s", dc_name2 );
 150
 151                         tc_status = NO_ERROR;
 152
 153                         break;
 154
 155                 default:
 156                         /* no idea what this should be */
 157                         DEBUG(0,("_net_logon_ctrl2: unimplemented function level [%d]\n",
 158                                 q_u->function_code));
 159         }
 160
 161         /* prepare the response */
 162
 163         init_net_r_logon_ctrl2( r_u, q_u->query_level, flags,
 164                 pdc_connection_status, logon_attempts, tc_status, dc_name );
 165
 166         if (lp_server_role() == ROLE_DOMAIN_BDC)
 167                 send_sync_message();
 168
 169         return r_u->status;
 170 }
 171
 172 /*************************************************************************
 173  net_reply_trust_dom_list:
 174  *************************************************************************/
 175
 176 NTSTATUS _net_trust_dom_list(pipes_struct *p, NET_Q_TRUST_DOM_LIST *q_u, NET_R_TRUST_DOM_LIST *r_u)
 177 {
 178         const char *trusted_domain = "test_domain";
 179         uint32 num_trust_domains = 1;
 180
 181         DEBUG(6,("_net_trust_dom_list: %d\n", __LINE__));
 182
 183         /* set up the Trusted Domain List response */
 184         init_r_trust_dom(r_u, num_trust_domains, trusted_domain);
 185
 186         DEBUG(6,("_net_trust_dom_list: %d\n", __LINE__));
 187
 188         return r_u->status;
 189 }
 190
 191 /***********************************************************************************
 192  init_net_r_srv_pwset:
 193  ***********************************************************************************/
 194
 195 static void init_net_r_srv_pwset(NET_R_SRV_PWSET *r_s,
 196                                  DOM_CRED *srv_cred, NTSTATUS status)
 197 {
 198         DEBUG(5,("init_net_r_srv_pwset: %d\n", __LINE__));
 199
 200         memcpy(&r_s->srv_cred, srv_cred, sizeof(r_s->srv_cred));
 201         r_s->status = status;
 202
 203         DEBUG(5,("init_net_r_srv_pwset: %d\n", __LINE__));
 204 }
 205
 206 /******************************************************************
 207  gets a machine password entry.  checks access rights of the host.
 208  ******************************************************************/
 209
 210 static BOOL get_md4pw(char *md4pw, char *mach_acct)
 211 {
 212         SAM_ACCOUNT *sampass = NULL;
 213         const uint8 *pass;
 214         BOOL ret;
 215         uint32 acct_ctrl;
 216
 217 #if 0
 218     /*
 219      * Currently this code is redundent as we already have a filter
 220      * by hostname list. What this code really needs to do is to
 221      * get a hosts allowed/hosts denied list from the SAM database
 222      * on a per user basis, and make the access decision there.
 223      * I will leave this code here for now as a reminder to implement
 224      * this at a later date. JRA.
 225      */
 226
 227         if (!allow_access(lp_domain_hostsdeny(), lp_domain_hostsallow(),
 228                           client_name(), client_addr()))
 229         {
 230                 DEBUG(0,("get_md4pw: Workstation %s denied access to domain\n", mach_acct));
 231                 return False;
 232         }
 233 #endif /* 0 */
 234
 235         if(!NT_STATUS_IS_OK(pdb_init_sam(&sampass)))
 236                 return False;
 237
 238         /* JRA. This is ok as it is only used for generating the challenge. */
 239         become_root();
 240         ret=pdb_getsampwnam(sampass, mach_acct);
 241         unbecome_root();
 242
 243         if (ret==False) {
 244                 DEBUG(0,("get_md4pw: Workstation %s: no account in domain\n", mach_acct));
 245                 pdb_free_sam(&sampass);
 246                 return False;
 247         }
 248
 249         acct_ctrl = pdb_get_acct_ctrl(sampass);
 250         if (!(acct_ctrl & ACB_DISABLED) &&
 251             ((acct_ctrl & ACB_DOMTRUST) ||
 252              (acct_ctrl & ACB_WSTRUST) ||
 253              (acct_ctrl & ACB_SVRTRUST)) &&
 254             ((pass=pdb_get_nt_passwd(sampass)) != NULL)) {
 255                 memcpy(md4pw, pass, 16);
 256                 dump_data(5, md4pw, 16);
 257                 pdb_free_sam(&sampass);
 258                 return True;
 259         }
 260
 261         DEBUG(0,("get_md4pw: Workstation %s: no account in domain\n", mach_acct));
 262         pdb_free_sam(&sampass);
 263         return False;
 264
 265 }
 266
 267 /*************************************************************************
 268  _net_req_chal
 269  *************************************************************************/
 270
 271 NTSTATUS _net_req_chal(pipes_struct *p, NET_Q_REQ_CHAL *q_u, NET_R_REQ_CHAL *r_u)
 272 {
 273         NTSTATUS status = NT_STATUS_OK;
 274
 275         rpcstr_pull(p->dc.remote_machine,q_u->uni_logon_clnt.buffer,sizeof(fstring),q_u->uni_logon_clnt.uni_str_len*2,0);
 276
 277         /* create a server challenge for the client */
 278         /* Set these to random values. */
 279         generate_random_buffer(p->dc.srv_chal.data, 8, False);
 280
 281         memcpy(p->dc.srv_cred.challenge.data, p->dc.srv_chal.data, 8);
 282
 283         memcpy(p->dc.clnt_chal.data          , q_u->clnt_chal.data, sizeof(q_u->clnt_chal.data));
 284         memcpy(p->dc.clnt_cred.challenge.data, q_u->clnt_chal.data, sizeof(q_u->clnt_chal.data));
 285
 286         memset((char *)p->dc.sess_key, '\0', sizeof(p->dc.sess_key));
 287
 288         p->dc.challenge_sent = True;
 289         /* set up the LSA REQUEST CHALLENGE response */
 290         init_net_r_req_chal(r_u, &p->dc.srv_chal, status);
 291
 292         return status;
 293 }
 294
 295 /*************************************************************************
 296  init_net_r_auth:
 297  *************************************************************************/
 298
 299 static void init_net_r_auth(NET_R_AUTH *r_a, DOM_CHAL *resp_cred, NTSTATUS status)
 300 {
 301         memcpy(r_a->srv_chal.data, resp_cred->data, sizeof(resp_cred->data));
 302         r_a->status = status;
 303 }
 304
 305 /*************************************************************************
 306  _net_auth
 307  *************************************************************************/
 308
 309 NTSTATUS _net_auth(pipes_struct *p, NET_Q_AUTH *q_u, NET_R_AUTH *r_u)
 310 {
 311         NTSTATUS status = NT_STATUS_OK;
 312         DOM_CHAL srv_cred;
 313         UTIME srv_time;
 314         fstring mach_acct;
 315
 316         srv_time.time = 0;
 317
 318         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);
 319
 320         if (p->dc.challenge_sent && get_md4pw((char *)p->dc.md4pw, mach_acct)) {
 321
 322                 /* from client / server challenges and md4 password, generate sess key */
 323                 cred_session_key(&p->dc.clnt_chal, &p->dc.srv_chal,
 324                                  p->dc.md4pw, p->dc.sess_key);
 325
 326                 /* check that the client credentials are valid */
 327                 if (cred_assert(&q_u->clnt_chal, p->dc.sess_key, &p->dc.clnt_cred.challenge, srv_time)) {
 328
 329                         /* create server challenge for inclusion in the reply */
 330                         cred_create(p->dc.sess_key, &p->dc.srv_cred.challenge, srv_time, &srv_cred);
 331
 332                         /* copy the received client credentials for use next time */
 333                         memcpy(p->dc.clnt_cred.challenge.data, q_u->clnt_chal.data, sizeof(q_u->clnt_chal.data));
 334                         memcpy(p->dc.srv_cred .challenge.data, q_u->clnt_chal.data, sizeof(q_u->clnt_chal.data));
 335
 336                         /* Save the machine account name. */
 337                         fstrcpy(p->dc.mach_acct, mach_acct);
 338
 339                         p->dc.authenticated = True;
 340
 341                 } else {
 342                         status = NT_STATUS_ACCESS_DENIED;
 343                 }
 344         } else {
 345                 status = NT_STATUS_ACCESS_DENIED;
 346         }
 347
 348         /* set up the LSA AUTH response */
 349         init_net_r_auth(r_u, &srv_cred, status);
 350
 351         return r_u->status;
 352 }
 353
 354 /*************************************************************************
 355  init_net_r_auth_2:
 356  *************************************************************************/
 357
 358 static void init_net_r_auth_2(NET_R_AUTH_2 *r_a,
 359                               DOM_CHAL *resp_cred, NEG_FLAGS *flgs, NTSTATUS status)
 360 {
 361         memcpy(r_a->srv_chal.data, resp_cred->data, sizeof(resp_cred->data));
 362         memcpy(&r_a->srv_flgs, flgs, sizeof(r_a->srv_flgs));
 363         r_a->status = status;
 364 }
 365
 366 /*************************************************************************
 367  _net_auth_2
 368  *************************************************************************/
 369
 370 NTSTATUS _net_auth_2(pipes_struct *p, NET_Q_AUTH_2 *q_u, NET_R_AUTH_2 *r_u)
 371 {
 372         NTSTATUS status = NT_STATUS_OK;
 373         DOM_CHAL srv_cred;
 374         UTIME srv_time;
 375         NEG_FLAGS srv_flgs;
 376         fstring mach_acct;
 377
 378         srv_time.time = 0;
 379
 380         if ( (lp_server_schannel() == True) &&
 381              ((q_u->clnt_flgs.neg_flags & NETLOGON_NEG_SCHANNEL) == 0) ) {
 382
 383                 /* schannel must be used, but client did not offer it. */
 384                 status = NT_STATUS_ACCESS_DENIED;
 385         }
 386
 387         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);
 388
 389         if (p->dc.challenge_sent && get_md4pw((char *)p->dc.md4pw, mach_acct)) {
 390
 391                 /* from client / server challenges and md4 password, generate sess key */
 392                 cred_session_key(&p->dc.clnt_chal, &p->dc.srv_chal,
 393                                  p->dc.md4pw, p->dc.sess_key);
 394
 395                 /* check that the client credentials are valid */
 396                 if (cred_assert(&q_u->clnt_chal, p->dc.sess_key, &p->dc.clnt_cred.challenge, srv_time)) {
 397
 398                         /* create server challenge for inclusion in the reply */
 399                         cred_create(p->dc.sess_key, &p->dc.srv_cred.challenge, srv_time, &srv_cred);
 400
 401                         /* copy the received client credentials for use next time */
 402                         memcpy(p->dc.clnt_cred.challenge.data, q_u->clnt_chal.data, sizeof(q_u->clnt_chal.data));
 403                         memcpy(p->dc.srv_cred .challenge.data, q_u->clnt_chal.data, sizeof(q_u->clnt_chal.data));
 404
 405                         /* Save the machine account name. */
 406                         fstrcpy(p->dc.mach_acct, mach_acct);
 407
 408                         p->dc.authenticated = True;
 409
 410                 } else {
 411                         status = NT_STATUS_ACCESS_DENIED;
 412                 }
 413         } else {
 414                 status = NT_STATUS_ACCESS_DENIED;
 415         }
 416
 417         srv_flgs.neg_flags = 0x000001ff;
 418
 419         if (lp_server_schannel() != False) {
 420                 srv_flgs.neg_flags |= NETLOGON_NEG_SCHANNEL;
 421         }
 422
 423         /* set up the LSA AUTH 2 response */
 424         init_net_r_auth_2(r_u, &srv_cred, &srv_flgs, status);
 425
 426         if (NT_STATUS_IS_OK(status)) {
 427                 extern struct dcinfo last_dcinfo;
 428                 last_dcinfo = p->dc;
 429         }
 430
 431         return r_u->status;
 432 }
 433
 434 /*************************************************************************
 435  _net_srv_pwset
 436  *************************************************************************/
 437
 438 NTSTATUS _net_srv_pwset(pipes_struct *p, NET_Q_SRV_PWSET *q_u, NET_R_SRV_PWSET *r_u)
 439 {
 440         NTSTATUS status = NT_STATUS_ACCESS_DENIED;
 441         DOM_CRED srv_cred;
 442         pstring workstation;
 443         SAM_ACCOUNT *sampass=NULL;
 444         BOOL ret = False;
 445         unsigned char pwd[16];
 446         int i;
 447         uint32 acct_ctrl;
 448
 449         /* checks and updates credentials.  creates reply credentials */
 450         if (!(p->dc.authenticated && deal_with_creds(p->dc.sess_key, &p->dc.clnt_cred, &q_u->clnt_id.cred, &srv_cred)))
 451                 return NT_STATUS_INVALID_HANDLE;
 452
 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         DEBUG(100,("Server password set : new given value was :\n"));
 486         for(i = 0; i < 16; i++)
 487                 DEBUG(100,("%02X ", q_u->pwd[i]));
 488         DEBUG(100,("\n"));
 489
 490         cred_hash3( pwd, q_u->pwd, p->dc.sess_key, 0);
 491
 492         /* lies!  nt and lm passwords are _not_ the same: don't care */
 493         if (!pdb_set_lanman_passwd (sampass, pwd, PDB_CHANGED)) {
 494                 pdb_free_sam(&sampass);
 495                 return NT_STATUS_NO_MEMORY;
 496         }
 497
 498         if (!pdb_set_nt_passwd     (sampass, pwd, PDB_CHANGED)) {
 499                 pdb_free_sam(&sampass);
 500                 return NT_STATUS_NO_MEMORY;
 501         }
 502
 503         if (!pdb_set_pass_changed_now     (sampass)) {
 504                 pdb_free_sam(&sampass);
 505                 /* Not quite sure what this one qualifies as, but this will do */
 506                 return NT_STATUS_UNSUCCESSFUL;
 507         }
 508
 509         become_root();
 510         ret = pdb_update_sam_account (sampass);
 511         unbecome_root();
 512
 513         if (ret)
 514                 status = NT_STATUS_OK;
 515
 516         /* set up the LSA Server Password Set response */
 517         init_net_r_srv_pwset(r_u, &srv_cred, status);
 518
 519         pdb_free_sam(&sampass);
 520         return r_u->status;
 521 }
 522
 523
 524 /*************************************************************************
 525  _net_sam_logoff:
 526  *************************************************************************/
 527
 528 NTSTATUS _net_sam_logoff(pipes_struct *p, NET_Q_SAM_LOGOFF *q_u, NET_R_SAM_LOGOFF *r_u)
 529 {
 530         DOM_CRED srv_cred;
 531
 532         if (!get_valid_user_struct(p->vuid))
 533                 return NT_STATUS_NO_SUCH_USER;
 534
 535         /* checks and updates credentials.  creates reply credentials */
 536         if (!(p->dc.authenticated && deal_with_creds(p->dc.sess_key, &p->dc.clnt_cred,
 537                                                      &q_u->sam_id.client.cred, &srv_cred)))
 538                 return NT_STATUS_INVALID_HANDLE;
 539
 540         memcpy(&p->dc.srv_cred, &p->dc.clnt_cred, sizeof(p->dc.clnt_cred));
 541
 542         /* XXXX maybe we want to say 'no', reject the client's credentials */
 543         r_u->buffer_creds = 1; /* yes, we have valid server credentials */
 544         memcpy(&r_u->srv_creds, &srv_cred, sizeof(r_u->srv_creds));
 545
 546         r_u->status = NT_STATUS_OK;
 547
 548         return r_u->status;
 549 }
 550
 551
 552 /*************************************************************************
 553  _net_sam_logon
 554  *************************************************************************/
 555
 556 NTSTATUS _net_sam_logon(pipes_struct *p, NET_Q_SAM_LOGON *q_u, NET_R_SAM_LOGON *r_u)
 557 {
 558         NTSTATUS status = NT_STATUS_OK;
 559         NET_USER_INFO_3 *usr_info = NULL;
 560         NET_ID_INFO_CTR *ctr = q_u->sam_id.ctr;
 561         DOM_CRED srv_cred;
 562         UNISTR2 *uni_samlogon_user = NULL;
 563         UNISTR2 *uni_samlogon_domain = NULL;
 564         UNISTR2 *uni_samlogon_workstation = NULL;
 565         fstring nt_username, nt_domain, nt_workstation;
 566         auth_usersupplied_info *user_info = NULL;
 567         auth_serversupplied_info *server_info = NULL;
 568         extern userdom_struct current_user_info;
 569         SAM_ACCOUNT *sampw;
 570         struct auth_context *auth_context = NULL;
 571
 572         usr_info = (NET_USER_INFO_3 *)talloc(p->mem_ctx, sizeof(NET_USER_INFO_3));
 573         if (!usr_info)
 574                 return NT_STATUS_NO_MEMORY;
 575
 576         ZERO_STRUCTP(usr_info);
 577
 578         /* store the user information, if there is any. */
 579         r_u->user = usr_info;
 580         r_u->switch_value = 0; /* indicates no info */
 581         r_u->auth_resp = 1; /* authoritative response */
 582         r_u->switch_value = 3; /* indicates type of validation user info */
 583
 584         if (!get_valid_user_struct(p->vuid))
 585                 return NT_STATUS_NO_SUCH_USER;
 586
 587
 588         if ( (lp_server_schannel() == True) && (!p->netsec_auth_validated) ) {
 589                 /* 'server schannel = yes' should enforce use of
 590                    schannel, the client did offer it in auth2, but
 591                    obviously did not use it. */
 592                 return NT_STATUS_ACCESS_DENIED;
 593         }
 594
 595         /* checks and updates credentials.  creates reply credentials */
 596         if (!(p->dc.authenticated && deal_with_creds(p->dc.sess_key, &p->dc.clnt_cred, &q_u->sam_id.client.cred, &srv_cred)))
 597                 return NT_STATUS_INVALID_HANDLE;
 598
 599         memcpy(&p->dc.srv_cred, &p->dc.clnt_cred, sizeof(p->dc.clnt_cred));
 600
 601         r_u->buffer_creds = 1; /* yes, we have valid server credentials */
 602         memcpy(&r_u->srv_creds, &srv_cred, sizeof(r_u->srv_creds));
 603
 604         /* find the username */
 605
 606         switch (q_u->sam_id.logon_level) {
 607         case INTERACTIVE_LOGON_TYPE:
 608                 uni_samlogon_user = &ctr->auth.id1.uni_user_name;
 609                 uni_samlogon_domain = &ctr->auth.id1.uni_domain_name;
 610
 611                 uni_samlogon_workstation = &ctr->auth.id1.uni_wksta_name;
 612
 613                 DEBUG(3,("SAM Logon (Interactive). Domain:[%s].  ", lp_workgroup()));
 614                 break;
 615         case NET_LOGON_TYPE:
 616                 uni_samlogon_user = &ctr->auth.id2.uni_user_name;
 617                 uni_samlogon_domain = &ctr->auth.id2.uni_domain_name;
 618                 uni_samlogon_workstation = &ctr->auth.id2.uni_wksta_name;
 619
 620                 DEBUG(3,("SAM Logon (Network). Domain:[%s].  ", lp_workgroup()));
 621                 break;
 622         default:
 623                 DEBUG(2,("SAM Logon: unsupported switch value\n"));
 624                 return NT_STATUS_INVALID_INFO_CLASS;
 625         } /* end switch */
 626
 627         rpcstr_pull(nt_username,uni_samlogon_user->buffer,sizeof(nt_username),uni_samlogon_user->uni_str_len*2,0);
 628         rpcstr_pull(nt_domain,uni_samlogon_domain->buffer,sizeof(nt_domain),uni_samlogon_domain->uni_str_len*2,0);
 629         rpcstr_pull(nt_workstation,uni_samlogon_workstation->buffer,sizeof(nt_workstation),uni_samlogon_workstation->uni_str_len*2,0);
 630
 631         DEBUG(3,("User:[%s@%s] Requested Domain:[%s]\n", nt_username,
 632                  nt_workstation, nt_domain));
 633
 634         fstrcpy(current_user_info.smb_name, nt_username);
 635         sub_set_smb_name(nt_username);
 636
 637         DEBUG(5,("Attempting validation level %d for unmapped username %s.\n", q_u->sam_id.ctr->switch_value, nt_username));
 638
 639         status = NT_STATUS_OK;
 640
 641         switch (ctr->switch_value) {
 642         case NET_LOGON_TYPE:
 643         {
 644                 const char *wksname = nt_workstation;
 645
 646                 if (!NT_STATUS_IS_OK(status = make_auth_context_fixed(&auth_context, ctr->auth.id2.lm_chal))) {
 647                         return status;
 648                 }
 649
 650                 /* For a network logon, the workstation name comes in with two
 651                  * backslashes in the front. Strip them if they are there. */
 652
 653                 if (*wksname == '\\') wksname++;
 654                 if (*wksname == '\\') wksname++;
 655
 656                 /* Standard challenge/response authenticaion */
 657                 if (!make_user_info_netlogon_network(&user_info,
 658                                                      nt_username, nt_domain,
 659                                                      wksname,
 660                                                      ctr->auth.id2.lm_chal_resp.buffer,
 661                                                      ctr->auth.id2.lm_chal_resp.str_str_len,
 662                                                      ctr->auth.id2.nt_chal_resp.buffer,
 663                                                      ctr->auth.id2.nt_chal_resp.str_str_len)) {
 664                         status = NT_STATUS_NO_MEMORY;
 665                 }
 666                 break;
 667         }
 668         case INTERACTIVE_LOGON_TYPE:
 669                 /* 'Interactive' autheticaion, supplies the password in its
 670                    MD4 form, encrypted with the session key.  We will
 671                    convert this to chellange/responce for the auth
 672                    subsystem to chew on */
 673         {
 674                 const uint8 *chal;
 675
 676                 if (!NT_STATUS_IS_OK(status = make_auth_context_subsystem(&auth_context))) {
 677                         return status;
 678                 }
 679
 680                 chal = auth_context->get_ntlm_challenge(auth_context);
 681
 682                 if (!make_user_info_netlogon_interactive(&user_info,
 683                                                          nt_username, nt_domain,
 684                                                          nt_workstation, chal,
 685                                                          ctr->auth.id1.lm_owf.data,
 686                                                          ctr->auth.id1.nt_owf.data,
 687                                                          p->dc.sess_key)) {
 688                         status = NT_STATUS_NO_MEMORY;
 689                 }
 690                 break;
 691         }
 692         default:
 693                 DEBUG(2,("SAM Logon: unsupported switch value\n"));
 694                 return NT_STATUS_INVALID_INFO_CLASS;
 695         } /* end switch */
 696
 697         if ( NT_STATUS_IS_OK(status) ) {
 698                 status = auth_context->check_ntlm_password(auth_context,
 699                         user_info, &server_info);
 700         }
 701
 702         (auth_context->free)(&auth_context);
 703         free_user_info(&user_info);
 704
 705         DEBUG(5, ("_net_sam_logon: check_password returned status %s\n",
 706                   nt_errstr(status)));
 707
 708         /* Check account and password */
 709
 710         if (!NT_STATUS_IS_OK(status)) {
 711                 free_server_info(&server_info);
 712                 return status;
 713         }
 714
 715         if (server_info->guest) {
 716                 /* We don't like guest domain logons... */
 717                 DEBUG(5,("_net_sam_logon: Attempted domain logon as GUEST denied.\n"));
 718                 free_server_info(&server_info);
 719                 return NT_STATUS_LOGON_FAILURE;
 720         }
 721
 722         /* This is the point at which, if the login was successful, that
 723            the SAM Local Security Authority should record that the user is
 724            logged in to the domain.  */
 725
 726         {
 727                 DOM_GID *gids = NULL;
 728                 const DOM_SID *user_sid = NULL;
 729                 const DOM_SID *group_sid = NULL;
 730                 DOM_SID domain_sid;
 731                 uint32 user_rid, group_rid;
 732
 733                 int num_gids = 0;
 734                 pstring my_name;
 735                 fstring user_sid_string;
 736                 fstring group_sid_string;
 737                 uchar user_session_key[16];
 738                 uchar lm_session_key[16];
 739                 uchar netlogon_sess_key[16];
 740
 741                 sampw = server_info->sam_account;
 742
 743                 /* set up pointer indicating user/password failed to be found */
 744                 usr_info->ptr_user_info = 0;
 745
 746                 user_sid = pdb_get_user_sid(sampw);
 747                 group_sid = pdb_get_group_sid(sampw);
 748
 749                 sid_copy(&domain_sid, user_sid);
 750                 sid_split_rid(&domain_sid, &user_rid);
 751
 752                 if (!sid_peek_check_rid(&domain_sid, group_sid, &group_rid)) {
 753                         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",
 754                                   pdb_get_domain(sampw), pdb_get_username(sampw),
 755                                   sid_to_string(user_sid_string, user_sid),
 756                                   sid_to_string(group_sid_string, group_sid)));
 757                         return NT_STATUS_UNSUCCESSFUL;
 758                 }
 759
 760                 pstrcpy(my_name, global_myname());
 761
 762                 if (!NT_STATUS_IS_OK(status
 763                                      = nt_token_to_group_list(p->mem_ctx,
 764                                                               &domain_sid,
 765                                                               server_info->ptok,
 766                                                               &num_gids,
 767                                                               &gids))) {
 768                         return status;
 769                 }
 770
 771                 ZERO_STRUCT(netlogon_sess_key);
 772                 memcpy(netlogon_sess_key, p->dc.sess_key, 8);
 773                 if (server_info->user_session_key.length) {
 774                         memcpy(user_session_key, server_info->user_session_key.data,
 775                                MIN(sizeof(user_session_key), server_info->user_session_key.length));
 776                         SamOEMhash(user_session_key, netlogon_sess_key, 16);
 777                 }
 778                 if (server_info->lm_session_key.length) {
 779                         memcpy(lm_session_key, server_info->lm_session_key.data,
 780                                MIN(sizeof(lm_session_key), server_info->lm_session_key.length));
 781                         SamOEMhash(lm_session_key, netlogon_sess_key, 16);
 782                 }
 783                 ZERO_STRUCT(netlogon_sess_key);
 784
 785                 init_net_user_info3(p->mem_ctx, usr_info,
 786                                     user_rid,
 787                                     group_rid,
 788                                     pdb_get_username(sampw),
 789                                     pdb_get_fullname(sampw),
 790                                     pdb_get_homedir(sampw),
 791                                     pdb_get_dir_drive(sampw),
 792                                     pdb_get_logon_script(sampw),
 793                                     pdb_get_profile_path(sampw),
 794                                     pdb_get_logon_time(sampw),
 795                                     get_time_t_max(),
 796                                     get_time_t_max(),
 797                                     pdb_get_pass_last_set_time(sampw),
 798                                     pdb_get_pass_can_change_time(sampw),
 799                                     pdb_get_pass_must_change_time(sampw),
 800
 801                                     0, /* logon_count */
 802                                     0, /* bad_pw_count */
 803                                     num_gids,    /* uint32 num_groups */
 804                                     gids    , /* DOM_GID *gids */
 805                                     0x20    , /* uint32 user_flgs (?) */
 806                                     server_info->user_session_key.length ? user_session_key : NULL,
 807                                     server_info->lm_session_key.length ? lm_session_key : NULL,
 808                                     my_name     , /* char *logon_srv */
 809                                     pdb_get_domain(sampw),
 810                                     &domain_sid,     /* DOM_SID *dom_sid */
 811                                     /* Should be users domain sid, not servers - for trusted domains */
 812
 813                                     NULL); /* char *other_sids */
 814                 ZERO_STRUCT(user_session_key);
 815                 ZERO_STRUCT(lm_session_key);
 816         }
 817         free_server_info(&server_info);
 818         return status;
 819 }
 820
 821 /*************************************************************************
 822  _ds_enum_dom_trusts
 823  *************************************************************************/
 824 #if 0   /* JERRY -- not correct */
 825 NTSTATUS _ds_enum_dom_trusts(pipes_struct *p, DS_Q_ENUM_DOM_TRUSTS *q_u,
 826                              DS_R_ENUM_DOM_TRUSTS *r_u)
 827 {
 828         NTSTATUS status = NT_STATUS_OK;
 829
 830         /* TODO: According to MSDN, the can only be executed against a
 831            DC or domain member running Windows 2000 or later.  Need
 832            to test against a standalone 2k server and see what it
 833            does.  A windows 2000 DC includes its own domain in the
 834            list.  --jerry */
 835
 836         return status;
 837 }
 838 #endif  /* JERRY */