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 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
  78 static void send_sync_message(void)
  79 {
  80         TDB_CONTEXT *tdb;
  81
  82         tdb = tdb_open_log(lock_path("connections.tdb"), 0,
  83                            TDB_DEFAULT, O_RDONLY, 0);
  84
  85         if (!tdb) {
  86                 DEBUG(3, ("send_sync_message(): failed to open connections "
  87                           "database\n"));
  88                 return;
  89         }
  90
  91         DEBUG(3, ("sending sam synchronisation message\n"));
  92
  93         message_send_all(tdb, MSG_SMB_SAM_SYNC, NULL, 0, False, NULL);
  94
  95         tdb_close(tdb);
  96 }
  97
  98 /*************************************************************************
  99  net_reply_logon_ctrl2:
 100  *************************************************************************/
 101
 102 NTSTATUS _net_logon_ctrl2(pipes_struct *p, NET_Q_LOGON_CTRL2 *q_u, NET_R_LOGON_CTRL2 *r_u)
 103 {
 104         uint32 flags = 0x0;
 105         uint32 pdc_connection_status = 0x0;
 106         uint32 logon_attempts = 0x0;
 107         uint32 tc_status;
 108         fstring servername, domain, dc_name, dc_name2;
 109         struct in_addr dc_ip;
 110
 111         /* this should be \\global_myname() */
 112         unistr2_to_ascii(servername, &q_u->uni_server_name, sizeof(servername));
 113
 114         r_u->status = NT_STATUS_OK;
 115
 116         tc_status = ERROR_NO_SUCH_DOMAIN;
 117         fstrcpy( dc_name, "" );
 118
 119         switch ( q_u->function_code ) {
 120                 case NETLOGON_CONTROL_TC_QUERY:
 121                         unistr2_to_ascii(domain, &q_u->info.info6.domain, sizeof(domain));
 122
 123                         if ( !is_trusted_domain( domain ) )
 124                                 break;
 125
 126                         if ( !get_dc_name( domain, NULL, dc_name2, &dc_ip ) ) {
 127                                 tc_status = ERROR_NO_LOGON_SERVERS;
 128                                 break;
 129                         }
 130
 131                         fstr_sprintf( dc_name, "\\\\%s", dc_name2 );
 132
 133                         tc_status = NO_ERROR;
 134
 135                         break;
 136
 137                 case NETLOGON_CONTROL_REDISCOVER:
 138                         unistr2_to_ascii(domain, &q_u->info.info6.domain, sizeof(domain));
 139
 140                         if ( !is_trusted_domain( domain ) )
 141                                 break;
 142
 143                         if ( !get_dc_name( domain, NULL, dc_name2, &dc_ip ) ) {
 144                                 tc_status = ERROR_NO_LOGON_SERVERS;
 145                                 break;
 146                         }
 147
 148                         fstr_sprintf( dc_name, "\\\\%s", dc_name2 );
 149
 150                         tc_status = NO_ERROR;
 151
 152                         break;
 153
 154                 default:
 155                         /* no idea what this should be */
 156                         DEBUG(0,("_net_logon_ctrl2: unimplemented function level [%d]\n",
 157                                 q_u->function_code));
 158         }
 159
 160         /* prepare the response */
 161
 162         init_net_r_logon_ctrl2( r_u, q_u->query_level, flags,
 163                 pdc_connection_status, logon_attempts, tc_status, dc_name );
 164
 165         if (lp_server_role() == ROLE_DOMAIN_BDC)
 166                 send_sync_message();
 167
 168         return r_u->status;
 169 }
 170
 171 /*************************************************************************
 172  net_reply_trust_dom_list:
 173  *************************************************************************/
 174
 175 NTSTATUS _net_trust_dom_list(pipes_struct *p, NET_Q_TRUST_DOM_LIST *q_u, NET_R_TRUST_DOM_LIST *r_u)
 176 {
 177         const char *trusted_domain = "test_domain";
 178         uint32 num_trust_domains = 1;
 179
 180         DEBUG(6,("_net_trust_dom_list: %d\n", __LINE__));
 181
 182         /* set up the Trusted Domain List response */
 183         init_r_trust_dom(r_u, num_trust_domains, trusted_domain);
 184
 185         DEBUG(6,("_net_trust_dom_list: %d\n", __LINE__));
 186
 187         return r_u->status;
 188 }
 189
 190 /***********************************************************************************
 191  init_net_r_srv_pwset:
 192  ***********************************************************************************/
 193
 194 static void init_net_r_srv_pwset(NET_R_SRV_PWSET *r_s,
 195                                  DOM_CRED *srv_cred, NTSTATUS status)
 196 {
 197         DEBUG(5,("init_net_r_srv_pwset: %d\n", __LINE__));
 198
 199         memcpy(&r_s->srv_cred, srv_cred, sizeof(r_s->srv_cred));
 200         r_s->status = status;
 201
 202         DEBUG(5,("init_net_r_srv_pwset: %d\n", __LINE__));
 203 }
 204
 205 /******************************************************************
 206  gets a machine password entry.  checks access rights of the host.
 207  ******************************************************************/
 208
 209 static BOOL get_md4pw(char *md4pw, char *mach_acct)
 210 {
 211         SAM_ACCOUNT *sampass = NULL;
 212         const uint8 *pass;
 213         BOOL ret;
 214         uint32 acct_ctrl;
 215
 216 #if 0
 217     /*
 218      * Currently this code is redundent as we already have a filter
 219      * by hostname list. What this code really needs to do is to
 220      * get a hosts allowed/hosts denied list from the SAM database
 221      * on a per user basis, and make the access decision there.
 222      * I will leave this code here for now as a reminder to implement
 223      * this at a later date. JRA.
 224      */
 225
 226         if (!allow_access(lp_domain_hostsdeny(), lp_domain_hostsallow(),
 227                           client_name(), client_addr()))
 228         {
 229                 DEBUG(0,("get_md4pw: Workstation %s denied access to domain\n", mach_acct));
 230                 return False;
 231         }
 232 #endif /* 0 */
 233
 234         if(!NT_STATUS_IS_OK(pdb_init_sam(&sampass)))
 235                 return False;
 236
 237         /* JRA. This is ok as it is only used for generating the challenge. */
 238         become_root();
 239         ret=pdb_getsampwnam(sampass, mach_acct);
 240         unbecome_root();
 241
 242         if (ret==False) {
 243                 DEBUG(0,("get_md4pw: Workstation %s: no account in domain\n", mach_acct));
 244                 pdb_free_sam(&sampass);
 245                 return False;
 246         }
 247
 248         acct_ctrl = pdb_get_acct_ctrl(sampass);
 249         if (!(acct_ctrl & ACB_DISABLED) &&
 250             ((acct_ctrl & ACB_DOMTRUST) ||
 251              (acct_ctrl & ACB_WSTRUST) ||
 252              (acct_ctrl & ACB_SVRTRUST)) &&
 253             ((pass=pdb_get_nt_passwd(sampass)) != NULL)) {
 254                 memcpy(md4pw, pass, 16);
 255                 dump_data(5, md4pw, 16);
 256                 pdb_free_sam(&sampass);
 257                 return True;
 258         }
 259
 260         DEBUG(0,("get_md4pw: Workstation %s: no account in domain\n", mach_acct));
 261         pdb_free_sam(&sampass);
 262         return False;
 263
 264 }
 265
 266 /*************************************************************************
 267  _net_req_chal
 268  *************************************************************************/
 269
 270 NTSTATUS _net_req_chal(pipes_struct *p, NET_Q_REQ_CHAL *q_u, NET_R_REQ_CHAL *r_u)
 271 {
 272         if (!p->dc) {
 273                 p->dc = TALLOC_ZERO_P(p->pipe_state_mem_ctx, struct dcinfo);
 274                 if (!p->dc) {
 275                         return NT_STATUS_NO_MEMORY;
 276                 }
 277         } else {
 278                 DEBUG(10,("_net_req_chal: new challenge requested. Clearing old state.\n"));
 279                 ZERO_STRUCTP(p->dc);
 280         }
 281
 282         rpcstr_pull(p->dc->remote_machine,
 283                         q_u->uni_logon_clnt.buffer,
 284                         sizeof(fstring),q_u->uni_logon_clnt.uni_str_len*2,0);
 285
 286         /* Save the client challenge to the server. */
 287         memcpy(p->dc->clnt_chal.data, q_u->clnt_chal.data, sizeof(q_u->clnt_chal.data));
 288
 289         /* Create a server challenge for the client */
 290         /* Set this to a random value. */
 291         generate_random_buffer(p->dc->srv_chal.data, 8);
 292
 293         /* set up the LSA REQUEST CHALLENGE response */
 294         init_net_r_req_chal(r_u, &p->dc->srv_chal, NT_STATUS_OK);
 295
 296         p->dc->challenge_sent = True;
 297
 298         return NT_STATUS_OK;
 299 }
 300
 301 /*************************************************************************
 302  init_net_r_auth:
 303  *************************************************************************/
 304
 305 static void init_net_r_auth(NET_R_AUTH *r_a, DOM_CHAL *resp_cred, NTSTATUS status)
 306 {
 307         memcpy(r_a->srv_chal.data, resp_cred->data, sizeof(resp_cred->data));
 308         r_a->status = status;
 309 }
 310
 311 /*************************************************************************
 312  _net_auth. Create the initial credentials.
 313  *************************************************************************/
 314
 315 NTSTATUS _net_auth(pipes_struct *p, NET_Q_AUTH *q_u, NET_R_AUTH *r_u)
 316 {
 317         fstring mach_acct;
 318         fstring remote_machine;
 319         DOM_CHAL srv_chal_out;
 320
 321         if (!p->dc || !p->dc->challenge_sent) {
 322                 return NT_STATUS_ACCESS_DENIED;
 323         }
 324
 325         rpcstr_pull(mach_acct, q_u->clnt_id.uni_acct_name.buffer,sizeof(fstring),
 326                                 q_u->clnt_id.uni_acct_name.uni_str_len*2,0);
 327         rpcstr_pull(remote_machine, q_u->clnt_id.uni_comp_name.buffer,sizeof(fstring),
 328                                 q_u->clnt_id.uni_comp_name.uni_str_len*2,0);
 329
 330         if (!get_md4pw((char *)p->dc->mach_pw, mach_acct)) {
 331                 DEBUG(0,("_net_auth: creds_server_check failed. Failed to "
 332                         "get pasword for machine account %s "
 333                         "from client %s\n",
 334                         mach_acct, remote_machine ));
 335                 return NT_STATUS_ACCESS_DENIED;
 336         }
 337
 338         /* From the client / server challenges and md4 password, generate sess key */
 339         creds_server_init(p->dc,
 340                         &p->dc->clnt_chal,      /* Stored client chal. */
 341                         &p->dc->srv_chal,       /* Stored server chal. */
 342                         p->dc->mach_pw,
 343                         &srv_chal_out);
 344
 345         /* Check client credentials are valid. */
 346         if (!creds_server_check(p->dc, &q_u->clnt_chal)) {
 347                 DEBUG(0,("_net_auth: creds_server_check failed. Rejecting auth "
 348                         "request from client %s machine account %s\n",
 349                         remote_machine, mach_acct ));
 350                 return NT_STATUS_ACCESS_DENIED;
 351         }
 352
 353         fstrcpy(p->dc->mach_acct, mach_acct);
 354         fstrcpy(p->dc->remote_machine, remote_machine);
 355         p->dc->authenticated = True;
 356
 357         /* set up the LSA AUTH response */
 358         /* Return the server credentials. */
 359         init_net_r_auth(r_u, &srv_chal_out, NT_STATUS_OK);
 360
 361         return r_u->status;
 362 }
 363
 364 /*************************************************************************
 365  init_net_r_auth_2:
 366  *************************************************************************/
 367
 368 static void init_net_r_auth_2(NET_R_AUTH_2 *r_a,
 369                               DOM_CHAL *resp_cred, NEG_FLAGS *flgs, NTSTATUS status)
 370 {
 371         memcpy(r_a->srv_chal.data, resp_cred->data, sizeof(resp_cred->data));
 372         memcpy(&r_a->srv_flgs, flgs, sizeof(r_a->srv_flgs));
 373         r_a->status = status;
 374 }
 375
 376 /*************************************************************************
 377  _net_auth_2
 378  *************************************************************************/
 379
 380 NTSTATUS _net_auth_2(pipes_struct *p, NET_Q_AUTH_2 *q_u, NET_R_AUTH_2 *r_u)
 381 {
 382         NEG_FLAGS srv_flgs;
 383         fstring mach_acct;
 384         fstring remote_machine;
 385         DOM_CHAL srv_chal_out;
 386
 387         rpcstr_pull(mach_acct, q_u->clnt_id.uni_acct_name.buffer,sizeof(fstring),
 388                                 q_u->clnt_id.uni_acct_name.uni_str_len*2,0);
 389         rpcstr_pull(remote_machine, q_u->clnt_id.uni_comp_name.buffer,sizeof(fstring),
 390                                 q_u->clnt_id.uni_comp_name.uni_str_len*2,0);
 391
 392         if (!p->dc || !p->dc->challenge_sent) {
 393                 DEBUG(0,("_net_auth2: no challenge sent to client %s\n",
 394                         remote_machine ));
 395                 return NT_STATUS_ACCESS_DENIED;
 396         }
 397
 398         if ( (lp_server_schannel() == True) &&
 399              ((q_u->clnt_flgs.neg_flags & NETLOGON_NEG_SCHANNEL) == 0) ) {
 400
 401                 /* schannel must be used, but client did not offer it. */
 402                 DEBUG(0,("_net_auth2: schannel required but client failed "
 403                         "to offer it. Client was %s\n",
 404                         mach_acct ));
 405                 return NT_STATUS_ACCESS_DENIED;
 406         }
 407
 408         if (!get_md4pw((char *)p->dc->mach_pw, mach_acct)) {
 409                 DEBUG(0,("_net_auth2: failed to get machine password for "
 410                         "account %s\n",
 411                         mach_acct ));
 412                 return NT_STATUS_ACCESS_DENIED;
 413         }
 414
 415         /* From the client / server challenges and md4 password, generate sess key */
 416         creds_server_init(p->dc,
 417                         &p->dc->clnt_chal,      /* Stored client chal. */
 418                         &p->dc->srv_chal,       /* Stored server chal. */
 419                         p->dc->mach_pw,
 420                         &srv_chal_out);
 421
 422         /* Check client credentials are valid. */
 423         if (!creds_server_check(p->dc, &q_u->clnt_chal)) {
 424                 DEBUG(0,("_net_auth2: creds_server_check failed. Rejecting auth "
 425                         "request from client %s machine account %s\n",
 426                         remote_machine, mach_acct ));
 427                 return NT_STATUS_ACCESS_DENIED;
 428         }
 429
 430         srv_flgs.neg_flags = 0x000001ff;
 431
 432         if (lp_server_schannel() != False) {
 433                 srv_flgs.neg_flags |= NETLOGON_NEG_SCHANNEL;
 434         }
 435
 436         /* set up the LSA AUTH 2 response */
 437         init_net_r_auth_2(r_u, &srv_chal_out, &srv_flgs, NT_STATUS_OK);
 438
 439         fstrcpy(p->dc->mach_acct, mach_acct);
 440         fstrcpy(p->dc->remote_machine, remote_machine);
 441
 442         server_auth2_negotiated = True;
 443         p->dc->authenticated = True;
 444         last_dcinfo = *p->dc;
 445
 446         //secrets_store_schannel_session_info(p->dc);
 447         return r_u->status;
 448 }
 449
 450 /*************************************************************************
 451  _net_srv_pwset
 452  *************************************************************************/
 453
 454 NTSTATUS _net_srv_pwset(pipes_struct *p, NET_Q_SRV_PWSET *q_u, NET_R_SRV_PWSET *r_u)
 455 {
 456         NTSTATUS status = NT_STATUS_ACCESS_DENIED;
 457         fstring workstation;
 458         SAM_ACCOUNT *sampass=NULL;
 459         BOOL ret = False;
 460         unsigned char pwd[16];
 461         int i;
 462         uint32 acct_ctrl;
 463         DOM_CRED cred_out;
 464         const uchar *old_pw;
 465
 466         if (!p->dc || !p->dc->authenticated) {
 467                 return NT_STATUS_INVALID_HANDLE;
 468         }
 469
 470         /* Step the creds chain forward. */
 471         if (!creds_server_step(p->dc, &q_u->clnt_id.cred, &cred_out)) {
 472                 DEBUG(0,("_net_srv_pwset: creds_server_step failed. Rejecting auth "
 473                         "request from client %s machine account %s\n",
 474                         p->dc->remote_machine, p->dc->mach_acct ));
 475                 return NT_STATUS_ACCESS_DENIED;
 476         }
 477
 478         DEBUG(5,("_net_srv_pwset: %d\n", __LINE__));
 479
 480         rpcstr_pull(workstation,q_u->clnt_id.login.uni_comp_name.buffer,
 481                     sizeof(workstation),q_u->clnt_id.login.uni_comp_name.uni_str_len*2,0);
 482
 483         DEBUG(3,("_net_srv_pwset: Server Password Set by Wksta:[%s] on account [%s]\n",
 484                         workstation, p->dc->mach_acct));
 485
 486         pdb_init_sam(&sampass);
 487
 488         become_root();
 489         ret=pdb_getsampwnam(sampass, p->dc->mach_acct);
 490         unbecome_root();
 491
 492         /* Ensure the account exists and is a machine account. */
 493
 494         acct_ctrl = pdb_get_acct_ctrl(sampass);
 495
 496         if (!(ret
 497               && (acct_ctrl & ACB_WSTRUST ||
 498                       acct_ctrl & ACB_SVRTRUST ||
 499                       acct_ctrl & ACB_DOMTRUST))) {
 500                 pdb_free_sam(&sampass);
 501                 return NT_STATUS_NO_SUCH_USER;
 502         }
 503
 504         if (pdb_get_acct_ctrl(sampass) & ACB_DISABLED) {
 505                 pdb_free_sam(&sampass);
 506                 return NT_STATUS_ACCOUNT_DISABLED;
 507         }
 508
 509         /* Woah - what does this to to the credential chain ? JRA */
 510         cred_hash3( pwd, q_u->pwd, p->dc->sess_key, 0);
 511
 512         DEBUG(100,("Server password set : new given value was :\n"));
 513         for(i = 0; i < sizeof(pwd); i++)
 514                 DEBUG(100,("%02X ", pwd[i]));
 515         DEBUG(100,("\n"));
 516
 517         old_pw = pdb_get_nt_passwd(sampass);
 518
 519         if (old_pw && memcmp(pwd, old_pw, 16) == 0) {
 520                 /* Avoid backend modificiations and other fun if the
 521                    client changed the password to the *same thing* */
 522
 523                 ret = True;
 524         } else {
 525
 526                 /* LM password should be NULL for machines */
 527                 if (!pdb_set_lanman_passwd(sampass, NULL, PDB_CHANGED)) {
 528                         pdb_free_sam(&sampass);
 529                         return NT_STATUS_NO_MEMORY;
 530                 }
 531
 532                 if (!pdb_set_nt_passwd(sampass, pwd, PDB_CHANGED)) {
 533                         pdb_free_sam(&sampass);
 534                         return NT_STATUS_NO_MEMORY;
 535                 }
 536
 537                 if (!pdb_set_pass_changed_now(sampass)) {
 538                         pdb_free_sam(&sampass);
 539                         /* Not quite sure what this one qualifies as, but this will do */
 540                         return NT_STATUS_UNSUCCESSFUL;
 541                 }
 542
 543                 become_root();
 544                 ret = pdb_update_sam_account (sampass);
 545                 unbecome_root();
 546         }
 547         if (ret) {
 548                 status = NT_STATUS_OK;
 549         }
 550
 551         /* set up the LSA Server Password Set response */
 552         init_net_r_srv_pwset(r_u, &cred_out, status);
 553
 554         pdb_free_sam(&sampass);
 555         return r_u->status;
 556 }
 557
 558 /*************************************************************************
 559  _net_sam_logoff:
 560  *************************************************************************/
 561
 562 NTSTATUS _net_sam_logoff(pipes_struct *p, NET_Q_SAM_LOGOFF *q_u, NET_R_SAM_LOGOFF *r_u)
 563 {
 564         if (!get_valid_user_struct(p->vuid))
 565                 return NT_STATUS_NO_SUCH_USER;
 566
 567         if (!p->dc || !p->dc->authenticated) {
 568                 return NT_STATUS_INVALID_HANDLE;
 569         }
 570
 571         r_u->buffer_creds = 1; /* yes, we have valid server credentials */
 572
 573         /* checks and updates credentials.  creates reply credentials */
 574         if (!creds_server_step(p->dc, &q_u->sam_id.client.cred, &r_u->srv_creds)) {
 575                 DEBUG(0,("_net_sam_logoff: creds_server_step failed. Rejecting auth "
 576                         "request from client %s machine account %s\n",
 577                         p->dc->remote_machine, p->dc->mach_acct ));
 578                 return NT_STATUS_ACCESS_DENIED;
 579         }
 580
 581         r_u->status = NT_STATUS_OK;
 582         return r_u->status;
 583 }
 584
 585
 586 /*************************************************************************
 587  _net_sam_logon
 588  *************************************************************************/
 589
 590 NTSTATUS _net_sam_logon(pipes_struct *p, NET_Q_SAM_LOGON *q_u, NET_R_SAM_LOGON *r_u)
 591 {
 592         NTSTATUS status = NT_STATUS_OK;
 593         NET_USER_INFO_3 *usr_info = NULL;
 594         NET_ID_INFO_CTR *ctr = q_u->sam_id.ctr;
 595         UNISTR2 *uni_samlogon_user = NULL;
 596         UNISTR2 *uni_samlogon_domain = NULL;
 597         UNISTR2 *uni_samlogon_workstation = NULL;
 598         fstring nt_username, nt_domain, nt_workstation;
 599         auth_usersupplied_info *user_info = NULL;
 600         auth_serversupplied_info *server_info = NULL;
 601         SAM_ACCOUNT *sampw;
 602         struct auth_context *auth_context = NULL;
 603
 604         usr_info = TALLOC_P(p->mem_ctx, NET_USER_INFO_3);
 605         if (!usr_info)
 606                 return NT_STATUS_NO_MEMORY;
 607
 608         ZERO_STRUCTP(usr_info);
 609
 610         /* store the user information, if there is any. */
 611         r_u->user = usr_info;
 612         r_u->switch_value = 0; /* indicates no info */
 613         r_u->auth_resp = 1; /* authoritative response */
 614         r_u->switch_value = 3; /* indicates type of validation user info */
 615         r_u->buffer_creds = 1; /* Ensure we always return server creds. */
 616
 617         if (!get_valid_user_struct(p->vuid))
 618                 return NT_STATUS_NO_SUCH_USER;
 619
 620         if (!p->dc || !p->dc->authenticated) {
 621                 return NT_STATUS_INVALID_HANDLE;
 622         }
 623
 624         if ( (lp_server_schannel() == True) && (p->auth.auth_type != PIPE_AUTH_TYPE_SCHANNEL) ) {
 625                 /* 'server schannel = yes' should enforce use of
 626                    schannel, the client did offer it in auth2, but
 627                    obviously did not use it. */
 628                 DEBUG(0,("_net_sam_logoff: client %s not using schannel for netlogon\n",
 629                         p->dc->remote_machine ));
 630                 return NT_STATUS_ACCESS_DENIED;
 631         }
 632
 633         /* checks and updates credentials.  creates reply credentials */
 634         if (!creds_server_step(p->dc, &q_u->sam_id.client.cred,  &r_u->srv_creds)) {
 635                 DEBUG(0,("_net_sam_logoff: creds_server_step failed. Rejecting auth "
 636                         "request from client %s machine account %s\n",
 637                         p->dc->remote_machine, p->dc->mach_acct ));
 638                 return NT_STATUS_ACCESS_DENIED;
 639         }
 640
 641         /* find the username */
 642
 643         switch (q_u->sam_id.logon_level) {
 644         case INTERACTIVE_LOGON_TYPE:
 645                 uni_samlogon_user = &ctr->auth.id1.uni_user_name;
 646                 uni_samlogon_domain = &ctr->auth.id1.uni_domain_name;
 647
 648                 uni_samlogon_workstation = &ctr->auth.id1.uni_wksta_name;
 649
 650                 DEBUG(3,("SAM Logon (Interactive). Domain:[%s].  ", lp_workgroup()));
 651                 break;
 652         case NET_LOGON_TYPE:
 653                 uni_samlogon_user = &ctr->auth.id2.uni_user_name;
 654                 uni_samlogon_domain = &ctr->auth.id2.uni_domain_name;
 655                 uni_samlogon_workstation = &ctr->auth.id2.uni_wksta_name;
 656
 657                 DEBUG(3,("SAM Logon (Network). Domain:[%s].  ", lp_workgroup()));
 658                 break;
 659         default:
 660                 DEBUG(2,("SAM Logon: unsupported switch value\n"));
 661                 return NT_STATUS_INVALID_INFO_CLASS;
 662         } /* end switch */
 663
 664         rpcstr_pull(nt_username,uni_samlogon_user->buffer,sizeof(nt_username),uni_samlogon_user->uni_str_len*2,0);
 665         rpcstr_pull(nt_domain,uni_samlogon_domain->buffer,sizeof(nt_domain),uni_samlogon_domain->uni_str_len*2,0);
 666         rpcstr_pull(nt_workstation,uni_samlogon_workstation->buffer,sizeof(nt_workstation),uni_samlogon_workstation->uni_str_len*2,0);
 667
 668         DEBUG(3,("User:[%s@%s] Requested Domain:[%s]\n", nt_username,
 669                  nt_workstation, nt_domain));
 670
 671         fstrcpy(current_user_info.smb_name, nt_username);
 672         sub_set_smb_name(nt_username);
 673
 674         DEBUG(5,("Attempting validation level %d for unmapped username %s.\n", q_u->sam_id.ctr->switch_value, nt_username));
 675
 676         status = NT_STATUS_OK;
 677
 678         switch (ctr->switch_value) {
 679         case NET_LOGON_TYPE:
 680         {
 681                 const char *wksname = nt_workstation;
 682
 683                 if (!NT_STATUS_IS_OK(status = make_auth_context_fixed(&auth_context, ctr->auth.id2.lm_chal))) {
 684                         return status;
 685                 }
 686
 687                 /* For a network logon, the workstation name comes in with two
 688                  * backslashes in the front. Strip them if they are there. */
 689
 690                 if (*wksname == '\\') wksname++;
 691                 if (*wksname == '\\') wksname++;
 692
 693                 /* Standard challenge/response authenticaion */
 694                 if (!make_user_info_netlogon_network(&user_info,
 695                                                      nt_username, nt_domain,
 696                                                      wksname,
 697                                                      ctr->auth.id2.lm_chal_resp.buffer,
 698                                                      ctr->auth.id2.lm_chal_resp.str_str_len,
 699                                                      ctr->auth.id2.nt_chal_resp.buffer,
 700                                                      ctr->auth.id2.nt_chal_resp.str_str_len)) {
 701                         status = NT_STATUS_NO_MEMORY;
 702                 }
 703                 break;
 704         }
 705         case INTERACTIVE_LOGON_TYPE:
 706                 /* 'Interactive' autheticaion, supplies the password in its
 707                    MD4 form, encrypted with the session key.  We will
 708                    convert this to chellange/responce for the auth
 709                    subsystem to chew on */
 710         {
 711                 const uint8 *chal;
 712
 713                 if (!NT_STATUS_IS_OK(status = make_auth_context_subsystem(&auth_context))) {
 714                         return status;
 715                 }
 716
 717                 chal = auth_context->get_ntlm_challenge(auth_context);
 718
 719                 if (!make_user_info_netlogon_interactive(&user_info,
 720                                                          nt_username, nt_domain,
 721                                                          nt_workstation, chal,
 722                                                          ctr->auth.id1.lm_owf.data,
 723                                                          ctr->auth.id1.nt_owf.data,
 724                                                          p->dc->sess_key)) {
 725                         status = NT_STATUS_NO_MEMORY;
 726                 }
 727                 break;
 728         }
 729         default:
 730                 DEBUG(2,("SAM Logon: unsupported switch value\n"));
 731                 return NT_STATUS_INVALID_INFO_CLASS;
 732         } /* end switch */
 733
 734         if ( NT_STATUS_IS_OK(status) ) {
 735                 status = auth_context->check_ntlm_password(auth_context,
 736                         user_info, &server_info);
 737         }
 738
 739         (auth_context->free)(&auth_context);
 740         free_user_info(&user_info);
 741
 742         DEBUG(5, ("_net_sam_logon: check_password returned status %s\n",
 743                   nt_errstr(status)));
 744
 745         /* Check account and password */
 746
 747         if (!NT_STATUS_IS_OK(status)) {
 748                 /* If we don't know what this domain is, we need to
 749                    indicate that we are not authoritative.  This
 750                    allows the client to decide if it needs to try
 751                    a local user.  Fix by jpjanosi@us.ibm.com, #2976 */
 752                 if ( NT_STATUS_EQUAL(status, NT_STATUS_NO_SUCH_USER)
 753                      && !strequal(nt_domain, get_global_sam_name())
 754                      && !is_trusted_domain(nt_domain) )
 755                         r_u->auth_resp = 0; /* We are not authoritative */
 756
 757                 free_server_info(&server_info);
 758                 return status;
 759         }
 760
 761         if (server_info->guest) {
 762                 /* We don't like guest domain logons... */
 763                 DEBUG(5,("_net_sam_logon: Attempted domain logon as GUEST denied.\n"));
 764                 free_server_info(&server_info);
 765                 return NT_STATUS_LOGON_FAILURE;
 766         }
 767
 768         /* This is the point at which, if the login was successful, that
 769            the SAM Local Security Authority should record that the user is
 770            logged in to the domain.  */
 771
 772         {
 773                 DOM_GID *gids = NULL;
 774                 const DOM_SID *user_sid = NULL;
 775                 const DOM_SID *group_sid = NULL;
 776                 DOM_SID domain_sid;
 777                 uint32 user_rid, group_rid;
 778
 779                 int num_gids = 0;
 780                 pstring my_name;
 781                 fstring user_sid_string;
 782                 fstring group_sid_string;
 783                 uchar user_session_key[16];
 784                 uchar lm_session_key[16];
 785                 uchar netlogon_sess_key[16];
 786
 787                 sampw = server_info->sam_account;
 788
 789                 /* set up pointer indicating user/password failed to be found */
 790                 usr_info->ptr_user_info = 0;
 791
 792                 user_sid = pdb_get_user_sid(sampw);
 793                 group_sid = pdb_get_group_sid(sampw);
 794
 795                 sid_copy(&domain_sid, user_sid);
 796                 sid_split_rid(&domain_sid, &user_rid);
 797
 798                 if (!sid_peek_check_rid(&domain_sid, group_sid, &group_rid)) {
 799                         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",
 800                                   pdb_get_domain(sampw), pdb_get_username(sampw),
 801                                   sid_to_string(user_sid_string, user_sid),
 802                                   sid_to_string(group_sid_string, group_sid)));
 803                         return NT_STATUS_UNSUCCESSFUL;
 804                 }
 805
 806
 807                 if(server_info->login_server) {
 808                         pstrcpy(my_name, server_info->login_server);
 809                 } else {
 810                         pstrcpy(my_name, global_myname());
 811                 }
 812
 813                 if (!NT_STATUS_IS_OK(status
 814                                      = nt_token_to_group_list(p->mem_ctx,
 815                                                               &domain_sid,
 816                                                               server_info->ptok,
 817                                                               &num_gids,
 818                                                               &gids))) {
 819                         return status;
 820                 }
 821
 822                 ZERO_STRUCT(netlogon_sess_key);
 823                 memcpy(netlogon_sess_key, p->dc->sess_key, 8);
 824                 if (server_info->user_session_key.length) {
 825                         memcpy(user_session_key, server_info->user_session_key.data,
 826                                MIN(sizeof(user_session_key), server_info->user_session_key.length));
 827                         SamOEMhash(user_session_key, netlogon_sess_key, 16);
 828                 }
 829                 if (server_info->lm_session_key.length) {
 830                         memcpy(lm_session_key, server_info->lm_session_key.data,
 831                                MIN(sizeof(lm_session_key), server_info->lm_session_key.length));
 832                         SamOEMhash(lm_session_key, netlogon_sess_key, 16);
 833                 }
 834                 ZERO_STRUCT(netlogon_sess_key);
 835
 836                 init_net_user_info3(p->mem_ctx, usr_info,
 837                                     user_rid,
 838                                     group_rid,
 839                                     pdb_get_username(sampw),
 840                                     pdb_get_fullname(sampw),
 841                                     pdb_get_homedir(sampw),
 842                                     pdb_get_dir_drive(sampw),
 843                                     pdb_get_logon_script(sampw),
 844                                     pdb_get_profile_path(sampw),
 845                                     pdb_get_logon_time(sampw),
 846                                     get_time_t_max(),
 847                                     get_time_t_max(),
 848                                     pdb_get_pass_last_set_time(sampw),
 849                                     pdb_get_pass_can_change_time(sampw),
 850                                     pdb_get_pass_must_change_time(sampw),
 851
 852                                     0, /* logon_count */
 853                                     0, /* bad_pw_count */
 854                                     num_gids,    /* uint32 num_groups */
 855                                     gids    , /* DOM_GID *gids */
 856                                     0x20    , /* uint32 user_flgs (?) */
 857                                     server_info->user_session_key.length ? user_session_key : NULL,
 858                                     server_info->lm_session_key.length ? lm_session_key : NULL,
 859                                     my_name     , /* char *logon_srv */
 860                                     pdb_get_domain(sampw),
 861                                     &domain_sid,     /* DOM_SID *dom_sid */
 862                                     /* Should be users domain sid, not servers - for trusted domains */
 863
 864                                     NULL); /* char *other_sids */
 865                 ZERO_STRUCT(user_session_key);
 866                 ZERO_STRUCT(lm_session_key);
 867         }
 868         free_server_info(&server_info);
 869         return status;
 870 }
 871
 872 /*************************************************************************
 873  _ds_enum_dom_trusts
 874  *************************************************************************/
 875 #if 0   /* JERRY -- not correct */
 876 NTSTATUS _ds_enum_dom_trusts(pipes_struct *p, DS_Q_ENUM_DOM_TRUSTS *q_u,
 877                              DS_R_ENUM_DOM_TRUSTS *r_u)
 878 {
 879         NTSTATUS status = NT_STATUS_OK;
 880
 881         /* TODO: According to MSDN, the can only be executed against a
 882            DC or domain member running Windows 2000 or later.  Need
 883            to test against a standalone 2k server and see what it
 884            does.  A windows 2000 DC includes its own domain in the
 885            list.  --jerry */
 886
 887         return status;
 888 }
 889 #endif  /* JERRY */