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 /* Some flag values reverse engineered from NLTEST.EXE */
  60
  61 #define LOGON_CTRL_IN_SYNC          0x00
  62 #define LOGON_CTRL_REPL_NEEDED      0x01
  63 #define LOGON_CTRL_REPL_IN_PROGRESS 0x02
  64
  65 NTSTATUS _net_logon_ctrl(pipes_struct *p, NET_Q_LOGON_CTRL *q_u,
  66                        NET_R_LOGON_CTRL *r_u)
  67 {
  68         uint32 flags = 0x0;
  69         uint32 pdc_connection_status = 0x00; /* Maybe a win32 error code? */
  70
  71         /* Setup the Logon Control response */
  72
  73         init_net_r_logon_ctrl(r_u, q_u->query_level, flags,
  74                               pdc_connection_status);
  75
  76         return r_u->status;
  77 }
  78
  79 /****************************************************************************
  80 Send a message to smbd to do a sam synchronisation
  81 **************************************************************************/
  82 static void send_sync_message(void)
  83 {
  84         TDB_CONTEXT *tdb;
  85
  86         tdb = tdb_open_log(lock_path("connections.tdb"), 0,
  87                            TDB_DEFAULT, O_RDONLY, 0);
  88
  89         if (!tdb) {
  90                 DEBUG(3, ("send_sync_message(): failed to open connections "
  91                           "database\n"));
  92                 return;
  93         }
  94
  95         DEBUG(3, ("sending sam synchronisation message\n"));
  96
  97         message_send_all(tdb, MSG_SMB_SAM_SYNC, NULL, 0, False, NULL);
  98
  99         tdb_close(tdb);
 100 }
 101
 102 /*************************************************************************
 103  net_reply_logon_ctrl2:
 104  *************************************************************************/
 105
 106 NTSTATUS _net_logon_ctrl2(pipes_struct *p, NET_Q_LOGON_CTRL2 *q_u, NET_R_LOGON_CTRL2 *r_u)
 107 {
 108         uint32 flags = 0x0;
 109         uint32 pdc_connection_status = 0x0;
 110         uint32 logon_attempts = 0x0;
 111         uint32 tc_status;
 112         fstring servername, domain, dc_name, dc_name2;
 113         struct in_addr dc_ip;
 114
 115         /* this should be \\global_myname() */
 116         unistr2_to_ascii(servername, &q_u->uni_server_name, sizeof(servername));
 117
 118         r_u->status = NT_STATUS_OK;
 119
 120         tc_status = ERROR_NO_SUCH_DOMAIN;
 121         fstrcpy( dc_name, "" );
 122
 123         switch ( q_u->function_code ) {
 124                 case NETLOGON_CONTROL_TC_QUERY:
 125                         unistr2_to_ascii(domain, &q_u->info.info6.domain, sizeof(domain));
 126
 127                         if ( !is_trusted_domain( domain ) )
 128                                 break;
 129
 130                         if ( !get_dc_name( domain, NULL, dc_name2, &dc_ip ) ) {
 131                                 tc_status = ERROR_NO_LOGON_SERVERS;
 132                                 break;
 133                         }
 134
 135                         fstr_sprintf( dc_name, "\\\\%s", dc_name2 );
 136
 137                         tc_status = NO_ERROR;
 138
 139                         break;
 140
 141                 case NETLOGON_CONTROL_REDISCOVER:
 142                         unistr2_to_ascii(domain, &q_u->info.info6.domain, sizeof(domain));
 143
 144                         if ( !is_trusted_domain( domain ) )
 145                                 break;
 146
 147                         if ( !get_dc_name( domain, NULL, dc_name2, &dc_ip ) ) {
 148                                 tc_status = ERROR_NO_LOGON_SERVERS;
 149                                 break;
 150                         }
 151
 152                         fstr_sprintf( dc_name, "\\\\%s", dc_name2 );
 153
 154                         tc_status = NO_ERROR;
 155
 156                         break;
 157
 158                 default:
 159                         /* no idea what this should be */
 160                         DEBUG(0,("_net_logon_ctrl2: unimplemented function level [%d]\n",
 161                                 q_u->function_code));
 162         }
 163
 164         /* prepare the response */
 165
 166         init_net_r_logon_ctrl2( r_u, q_u->query_level, flags,
 167                 pdc_connection_status, logon_attempts, tc_status, dc_name );
 168
 169         if (lp_server_role() == ROLE_DOMAIN_BDC)
 170                 send_sync_message();
 171
 172         return r_u->status;
 173 }
 174
 175 /*************************************************************************
 176  net_reply_trust_dom_list:
 177  *************************************************************************/
 178
 179 NTSTATUS _net_trust_dom_list(pipes_struct *p, NET_Q_TRUST_DOM_LIST *q_u, NET_R_TRUST_DOM_LIST *r_u)
 180 {
 181         const char *trusted_domain = "test_domain";
 182         uint32 num_trust_domains = 1;
 183
 184         DEBUG(6,("_net_trust_dom_list: %d\n", __LINE__));
 185
 186         /* set up the Trusted Domain List response */
 187         init_r_trust_dom(r_u, num_trust_domains, trusted_domain);
 188
 189         DEBUG(6,("_net_trust_dom_list: %d\n", __LINE__));
 190
 191         return r_u->status;
 192 }
 193
 194 /***********************************************************************************
 195  init_net_r_srv_pwset:
 196  ***********************************************************************************/
 197
 198 static void init_net_r_srv_pwset(NET_R_SRV_PWSET *r_s,
 199                                  DOM_CRED *srv_cred, NTSTATUS status)
 200 {
 201         DEBUG(5,("init_net_r_srv_pwset: %d\n", __LINE__));
 202
 203         memcpy(&r_s->srv_cred, srv_cred, sizeof(r_s->srv_cred));
 204         r_s->status = status;
 205
 206         DEBUG(5,("init_net_r_srv_pwset: %d\n", __LINE__));
 207 }
 208
 209 /******************************************************************
 210  gets a machine password entry.  checks access rights of the host.
 211  ******************************************************************/
 212
 213 static BOOL get_md4pw(char *md4pw, char *mach_acct)
 214 {
 215         SAM_ACCOUNT *sampass = NULL;
 216         const uint8 *pass;
 217         BOOL ret;
 218         uint32 acct_ctrl;
 219
 220 #if 0
 221     /*
 222      * Currently this code is redundent as we already have a filter
 223      * by hostname list. What this code really needs to do is to
 224      * get a hosts allowed/hosts denied list from the SAM database
 225      * on a per user basis, and make the access decision there.
 226      * I will leave this code here for now as a reminder to implement
 227      * this at a later date. JRA.
 228      */
 229
 230         if (!allow_access(lp_domain_hostsdeny(), lp_domain_hostsallow(),
 231                           client_name(), client_addr()))
 232         {
 233                 DEBUG(0,("get_md4pw: Workstation %s denied access to domain\n", mach_acct));
 234                 return False;
 235         }
 236 #endif /* 0 */
 237
 238         if(!NT_STATUS_IS_OK(pdb_init_sam(&sampass)))
 239                 return False;
 240
 241         /* JRA. This is ok as it is only used for generating the challenge. */
 242         become_root();
 243         ret=pdb_getsampwnam(sampass, mach_acct);
 244         unbecome_root();
 245
 246         if (ret==False) {
 247                 DEBUG(0,("get_md4pw: Workstation %s: no account in domain\n", mach_acct));
 248                 pdb_free_sam(&sampass);
 249                 return False;
 250         }
 251
 252         acct_ctrl = pdb_get_acct_ctrl(sampass);
 253         if (!(acct_ctrl & ACB_DISABLED) &&
 254             ((acct_ctrl & ACB_DOMTRUST) ||
 255              (acct_ctrl & ACB_WSTRUST) ||
 256              (acct_ctrl & ACB_SVRTRUST)) &&
 257             ((pass=pdb_get_nt_passwd(sampass)) != NULL)) {
 258                 memcpy(md4pw, pass, 16);
 259                 dump_data(5, md4pw, 16);
 260                 pdb_free_sam(&sampass);
 261                 return True;
 262         }
 263
 264         DEBUG(0,("get_md4pw: Workstation %s: no account in domain\n", mach_acct));
 265         pdb_free_sam(&sampass);
 266         return False;
 267
 268 }
 269
 270 /*************************************************************************
 271  _net_req_chal
 272  *************************************************************************/
 273
 274 NTSTATUS _net_req_chal(pipes_struct *p, NET_Q_REQ_CHAL *q_u, NET_R_REQ_CHAL *r_u)
 275 {
 276         NTSTATUS status = NT_STATUS_OK;
 277
 278         rpcstr_pull(p->dc.remote_machine,q_u->uni_logon_clnt.buffer,sizeof(fstring),q_u->uni_logon_clnt.uni_str_len*2,0);
 279
 280         /* create a server challenge for the client */
 281         /* Set these to random values. */
 282         generate_random_buffer(p->dc.srv_chal.data, 8);
 283
 284         memcpy(p->dc.srv_cred.challenge.data, p->dc.srv_chal.data, 8);
 285
 286         memcpy(p->dc.clnt_chal.data          , q_u->clnt_chal.data, sizeof(q_u->clnt_chal.data));
 287         memcpy(p->dc.clnt_cred.challenge.data, q_u->clnt_chal.data, sizeof(q_u->clnt_chal.data));
 288
 289         memset((char *)p->dc.sess_key, '\0', sizeof(p->dc.sess_key));
 290
 291         p->dc.challenge_sent = True;
 292         /* set up the LSA REQUEST CHALLENGE response */
 293         init_net_r_req_chal(r_u, &p->dc.srv_chal, status);
 294
 295         return status;
 296 }
 297
 298 /*************************************************************************
 299  init_net_r_auth:
 300  *************************************************************************/
 301
 302 static void init_net_r_auth(NET_R_AUTH *r_a, DOM_CHAL *resp_cred, NTSTATUS status)
 303 {
 304         memcpy(r_a->srv_chal.data, resp_cred->data, sizeof(resp_cred->data));
 305         r_a->status = status;
 306 }
 307
 308 /*************************************************************************
 309  _net_auth
 310  *************************************************************************/
 311
 312 NTSTATUS _net_auth(pipes_struct *p, NET_Q_AUTH *q_u, NET_R_AUTH *r_u)
 313 {
 314         NTSTATUS status = NT_STATUS_OK;
 315         DOM_CHAL srv_cred;
 316         UTIME srv_time;
 317         fstring mach_acct;
 318
 319         srv_time.time = 0;
 320
 321         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);
 322
 323         if (p->dc.challenge_sent && get_md4pw((char *)p->dc.md4pw, mach_acct)) {
 324
 325                 /* from client / server challenges and md4 password, generate sess key */
 326                 cred_session_key(&p->dc.clnt_chal, &p->dc.srv_chal,
 327                                  p->dc.md4pw, p->dc.sess_key);
 328
 329                 /* check that the client credentials are valid */
 330                 if (cred_assert(&q_u->clnt_chal, p->dc.sess_key, &p->dc.clnt_cred.challenge, srv_time)) {
 331
 332                         /* create server challenge for inclusion in the reply */
 333                         cred_create(p->dc.sess_key, &p->dc.srv_cred.challenge, srv_time, &srv_cred);
 334
 335                         /* copy the received client credentials for use next time */
 336                         memcpy(p->dc.clnt_cred.challenge.data, q_u->clnt_chal.data, sizeof(q_u->clnt_chal.data));
 337                         memcpy(p->dc.srv_cred .challenge.data, q_u->clnt_chal.data, sizeof(q_u->clnt_chal.data));
 338
 339                         /* Save the machine account name. */
 340                         fstrcpy(p->dc.mach_acct, mach_acct);
 341
 342                         p->dc.authenticated = True;
 343
 344                 } else {
 345                         status = NT_STATUS_ACCESS_DENIED;
 346                 }
 347         } else {
 348                 status = NT_STATUS_ACCESS_DENIED;
 349         }
 350
 351         /* set up the LSA AUTH response */
 352         init_net_r_auth(r_u, &srv_cred, status);
 353
 354         return r_u->status;
 355 }
 356
 357 /*************************************************************************
 358  init_net_r_auth_2:
 359  *************************************************************************/
 360
 361 static void init_net_r_auth_2(NET_R_AUTH_2 *r_a,
 362                               DOM_CHAL *resp_cred, NEG_FLAGS *flgs, NTSTATUS status)
 363 {
 364         memcpy(r_a->srv_chal.data, resp_cred->data, sizeof(resp_cred->data));
 365         memcpy(&r_a->srv_flgs, flgs, sizeof(r_a->srv_flgs));
 366         r_a->status = status;
 367 }
 368
 369 /*************************************************************************
 370  _net_auth_2
 371  *************************************************************************/
 372
 373 NTSTATUS _net_auth_2(pipes_struct *p, NET_Q_AUTH_2 *q_u, NET_R_AUTH_2 *r_u)
 374 {
 375         NTSTATUS status = NT_STATUS_OK;
 376         DOM_CHAL srv_cred;
 377         UTIME srv_time;
 378         NEG_FLAGS srv_flgs;
 379         fstring mach_acct;
 380
 381         srv_time.time = 0;
 382
 383         if ( (lp_server_schannel() == True) &&
 384              ((q_u->clnt_flgs.neg_flags & NETLOGON_NEG_SCHANNEL) == 0) ) {
 385
 386                 /* schannel must be used, but client did not offer it. */
 387                 status = NT_STATUS_ACCESS_DENIED;
 388         }
 389
 390         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);
 391
 392         if (p->dc.challenge_sent && get_md4pw((char *)p->dc.md4pw, mach_acct)) {
 393
 394                 /* from client / server challenges and md4 password, generate sess key */
 395                 cred_session_key(&p->dc.clnt_chal, &p->dc.srv_chal,
 396                                  p->dc.md4pw, p->dc.sess_key);
 397
 398                 /* check that the client credentials are valid */
 399                 if (cred_assert(&q_u->clnt_chal, p->dc.sess_key, &p->dc.clnt_cred.challenge, srv_time)) {
 400
 401                         /* create server challenge for inclusion in the reply */
 402                         cred_create(p->dc.sess_key, &p->dc.srv_cred.challenge, srv_time, &srv_cred);
 403
 404                         /* copy the received client credentials for use next time */
 405                         memcpy(p->dc.clnt_cred.challenge.data, q_u->clnt_chal.data, sizeof(q_u->clnt_chal.data));
 406                         memcpy(p->dc.srv_cred .challenge.data, q_u->clnt_chal.data, sizeof(q_u->clnt_chal.data));
 407
 408                         /* Save the machine account name. */
 409                         fstrcpy(p->dc.mach_acct, mach_acct);
 410
 411                         p->dc.authenticated = True;
 412
 413                 } else {
 414                         status = NT_STATUS_ACCESS_DENIED;
 415                 }
 416         } else {
 417                 status = NT_STATUS_ACCESS_DENIED;
 418         }
 419
 420         srv_flgs.neg_flags = 0x000001ff;
 421
 422         if (lp_server_schannel() != False) {
 423                 srv_flgs.neg_flags |= NETLOGON_NEG_SCHANNEL;
 424         }
 425
 426         /* set up the LSA AUTH 2 response */
 427         init_net_r_auth_2(r_u, &srv_cred, &srv_flgs, status);
 428
 429         if (NT_STATUS_IS_OK(status)) {
 430                 last_dcinfo = p->dc;
 431         }
 432
 433         return r_u->status;
 434 }
 435
 436 /*************************************************************************
 437  _net_srv_pwset
 438  *************************************************************************/
 439
 440 NTSTATUS _net_srv_pwset(pipes_struct *p, NET_Q_SRV_PWSET *q_u, NET_R_SRV_PWSET *r_u)
 441 {
 442         NTSTATUS status = NT_STATUS_ACCESS_DENIED;
 443         DOM_CRED srv_cred;
 444         pstring workstation;
 445         SAM_ACCOUNT *sampass=NULL;
 446         BOOL ret = False;
 447         unsigned char pwd[16];
 448         int i;
 449         uint32 acct_ctrl;
 450         const uchar *old_pw;
 451
 452         /* checks and updates credentials.  creates reply credentials */
 453         if (!(p->dc.authenticated && deal_with_creds(p->dc.sess_key, &p->dc.clnt_cred, &q_u->clnt_id.cred, &srv_cred)))
 454                 return NT_STATUS_INVALID_HANDLE;
 455
 456         memcpy(&p->dc.srv_cred, &p->dc.clnt_cred, sizeof(p->dc.clnt_cred));
 457
 458         DEBUG(5,("_net_srv_pwset: %d\n", __LINE__));
 459
 460         rpcstr_pull(workstation,q_u->clnt_id.login.uni_comp_name.buffer,
 461                     sizeof(workstation),q_u->clnt_id.login.uni_comp_name.uni_str_len*2,0);
 462
 463         DEBUG(3,("Server Password Set by Wksta:[%s] on account [%s]\n", workstation, p->dc.mach_acct));
 464
 465         pdb_init_sam(&sampass);
 466
 467         become_root();
 468         ret=pdb_getsampwnam(sampass, p->dc.mach_acct);
 469         unbecome_root();
 470
 471         /* Ensure the account exists and is a machine account. */
 472
 473         acct_ctrl = pdb_get_acct_ctrl(sampass);
 474
 475         if (!(ret
 476               && (acct_ctrl & ACB_WSTRUST ||
 477                       acct_ctrl & ACB_SVRTRUST ||
 478                       acct_ctrl & ACB_DOMTRUST))) {
 479                 pdb_free_sam(&sampass);
 480                 return NT_STATUS_NO_SUCH_USER;
 481         }
 482
 483         if (pdb_get_acct_ctrl(sampass) & ACB_DISABLED) {
 484                 pdb_free_sam(&sampass);
 485                 return NT_STATUS_ACCOUNT_DISABLED;
 486         }
 487
 488         cred_hash3( pwd, q_u->pwd, p->dc.sess_key, 0);
 489
 490         DEBUG(100,("Server password set : new given value was :\n"));
 491         for(i = 0; i < sizeof(pwd); i++)
 492                 DEBUG(100,("%02X ", pwd[i]));
 493         DEBUG(100,("\n"));
 494
 495         old_pw = pdb_get_nt_passwd(sampass);
 496
 497         if (old_pw && memcmp(pwd, old_pw, 16) == 0) {
 498                 /* Avoid backend modificiations and other fun if the
 499                    client changed the password to the *same thing* */
 500
 501                 ret = True;
 502         } else {
 503
 504                 /* LM password should be NULL for machines */
 505                 if (!pdb_set_lanman_passwd (sampass, NULL, PDB_CHANGED)) {
 506                         pdb_free_sam(&sampass);
 507                         return NT_STATUS_NO_MEMORY;
 508                 }
 509
 510                 if (!pdb_set_nt_passwd     (sampass, pwd, PDB_CHANGED)) {
 511                         pdb_free_sam(&sampass);
 512                         return NT_STATUS_NO_MEMORY;
 513                 }
 514
 515                 if (!pdb_set_pass_changed_now     (sampass)) {
 516                         pdb_free_sam(&sampass);
 517                         /* Not quite sure what this one qualifies as, but this will do */
 518                         return NT_STATUS_UNSUCCESSFUL;
 519                 }
 520
 521                 become_root();
 522                 ret = pdb_update_sam_account (sampass);
 523                 unbecome_root();
 524         }
 525         if (ret)
 526                 status = NT_STATUS_OK;
 527
 528         /* set up the LSA Server Password Set response */
 529         init_net_r_srv_pwset(r_u, &srv_cred, status);
 530
 531         pdb_free_sam(&sampass);
 532         return r_u->status;
 533 }
 534
 535
 536 /*************************************************************************
 537  _net_sam_logoff:
 538  *************************************************************************/
 539
 540 NTSTATUS _net_sam_logoff(pipes_struct *p, NET_Q_SAM_LOGOFF *q_u, NET_R_SAM_LOGOFF *r_u)
 541 {
 542         DOM_CRED srv_cred;
 543
 544         if (!get_valid_user_struct(p->vuid))
 545                 return NT_STATUS_NO_SUCH_USER;
 546
 547         /* checks and updates credentials.  creates reply credentials */
 548         if (!(p->dc.authenticated && deal_with_creds(p->dc.sess_key, &p->dc.clnt_cred,
 549                                                      &q_u->sam_id.client.cred, &srv_cred)))
 550                 return NT_STATUS_INVALID_HANDLE;
 551
 552         memcpy(&p->dc.srv_cred, &p->dc.clnt_cred, sizeof(p->dc.clnt_cred));
 553
 554         /* XXXX maybe we want to say 'no', reject the client's credentials */
 555         r_u->buffer_creds = 1; /* yes, we have valid server credentials */
 556         memcpy(&r_u->srv_creds, &srv_cred, sizeof(r_u->srv_creds));
 557
 558         r_u->status = NT_STATUS_OK;
 559
 560         return r_u->status;
 561 }
 562
 563
 564 /*************************************************************************
 565  _net_sam_logon
 566  *************************************************************************/
 567
 568 NTSTATUS _net_sam_logon(pipes_struct *p, NET_Q_SAM_LOGON *q_u, NET_R_SAM_LOGON *r_u)
 569 {
 570         NTSTATUS status = NT_STATUS_OK;
 571         NET_USER_INFO_3 *usr_info = NULL;
 572         NET_ID_INFO_CTR *ctr = q_u->sam_id.ctr;
 573         DOM_CRED srv_cred;
 574         UNISTR2 *uni_samlogon_user = NULL;
 575         UNISTR2 *uni_samlogon_domain = NULL;
 576         UNISTR2 *uni_samlogon_workstation = NULL;
 577         fstring nt_username, nt_domain, nt_workstation;
 578         auth_usersupplied_info *user_info = NULL;
 579         auth_serversupplied_info *server_info = NULL;
 580         SAM_ACCOUNT *sampw;
 581         struct auth_context *auth_context = NULL;
 582
 583         usr_info = TALLOC_P(p->mem_ctx, NET_USER_INFO_3);
 584         if (!usr_info)
 585                 return NT_STATUS_NO_MEMORY;
 586
 587         ZERO_STRUCTP(usr_info);
 588
 589         /* store the user information, if there is any. */
 590         r_u->user = usr_info;
 591         r_u->switch_value = 0; /* indicates no info */
 592         r_u->auth_resp = 1; /* authoritative response */
 593         r_u->switch_value = 3; /* indicates type of validation user info */
 594
 595         if (!get_valid_user_struct(p->vuid))
 596                 return NT_STATUS_NO_SUCH_USER;
 597
 598
 599         if ( (lp_server_schannel() == True) && (!p->netsec_auth_validated) ) {
 600                 /* 'server schannel = yes' should enforce use of
 601                    schannel, the client did offer it in auth2, but
 602                    obviously did not use it. */
 603                 return NT_STATUS_ACCESS_DENIED;
 604         }
 605
 606         /* checks and updates credentials.  creates reply credentials */
 607         if (!(p->dc.authenticated && deal_with_creds(p->dc.sess_key, &p->dc.clnt_cred, &q_u->sam_id.client.cred, &srv_cred)))
 608                 return NT_STATUS_INVALID_HANDLE;
 609
 610         memcpy(&p->dc.srv_cred, &p->dc.clnt_cred, sizeof(p->dc.clnt_cred));
 611
 612         r_u->buffer_creds = 1; /* yes, we have valid server credentials */
 613         memcpy(&r_u->srv_creds, &srv_cred, sizeof(r_u->srv_creds));
 614
 615         /* find the username */
 616
 617         switch (q_u->sam_id.logon_level) {
 618         case INTERACTIVE_LOGON_TYPE:
 619                 uni_samlogon_user = &ctr->auth.id1.uni_user_name;
 620                 uni_samlogon_domain = &ctr->auth.id1.uni_domain_name;
 621
 622                 uni_samlogon_workstation = &ctr->auth.id1.uni_wksta_name;
 623
 624                 DEBUG(3,("SAM Logon (Interactive). Domain:[%s].  ", lp_workgroup()));
 625                 break;
 626         case NET_LOGON_TYPE:
 627                 uni_samlogon_user = &ctr->auth.id2.uni_user_name;
 628                 uni_samlogon_domain = &ctr->auth.id2.uni_domain_name;
 629                 uni_samlogon_workstation = &ctr->auth.id2.uni_wksta_name;
 630
 631                 DEBUG(3,("SAM Logon (Network). Domain:[%s].  ", lp_workgroup()));
 632                 break;
 633         default:
 634                 DEBUG(2,("SAM Logon: unsupported switch value\n"));
 635                 return NT_STATUS_INVALID_INFO_CLASS;
 636         } /* end switch */
 637
 638         rpcstr_pull(nt_username,uni_samlogon_user->buffer,sizeof(nt_username),uni_samlogon_user->uni_str_len*2,0);
 639         rpcstr_pull(nt_domain,uni_samlogon_domain->buffer,sizeof(nt_domain),uni_samlogon_domain->uni_str_len*2,0);
 640         rpcstr_pull(nt_workstation,uni_samlogon_workstation->buffer,sizeof(nt_workstation),uni_samlogon_workstation->uni_str_len*2,0);
 641
 642         DEBUG(3,("User:[%s@%s] Requested Domain:[%s]\n", nt_username,
 643                  nt_workstation, nt_domain));
 644
 645         fstrcpy(current_user_info.smb_name, nt_username);
 646         sub_set_smb_name(nt_username);
 647
 648         DEBUG(5,("Attempting validation level %d for unmapped username %s.\n", q_u->sam_id.ctr->switch_value, nt_username));
 649
 650         status = NT_STATUS_OK;
 651
 652         switch (ctr->switch_value) {
 653         case NET_LOGON_TYPE:
 654         {
 655                 const char *wksname = nt_workstation;
 656
 657                 if (!NT_STATUS_IS_OK(status = make_auth_context_fixed(&auth_context, ctr->auth.id2.lm_chal))) {
 658                         return status;
 659                 }
 660
 661                 /* For a network logon, the workstation name comes in with two
 662                  * backslashes in the front. Strip them if they are there. */
 663
 664                 if (*wksname == '\\') wksname++;
 665                 if (*wksname == '\\') wksname++;
 666
 667                 /* Standard challenge/response authenticaion */
 668                 if (!make_user_info_netlogon_network(&user_info,
 669                                                      nt_username, nt_domain,
 670                                                      wksname,
 671                                                      ctr->auth.id2.lm_chal_resp.buffer,
 672                                                      ctr->auth.id2.lm_chal_resp.str_str_len,
 673                                                      ctr->auth.id2.nt_chal_resp.buffer,
 674                                                      ctr->auth.id2.nt_chal_resp.str_str_len)) {
 675                         status = NT_STATUS_NO_MEMORY;
 676                 }
 677                 break;
 678         }
 679         case INTERACTIVE_LOGON_TYPE:
 680                 /* 'Interactive' autheticaion, supplies the password in its
 681                    MD4 form, encrypted with the session key.  We will
 682                    convert this to chellange/responce for the auth
 683                    subsystem to chew on */
 684         {
 685                 const uint8 *chal;
 686
 687                 if (!NT_STATUS_IS_OK(status = make_auth_context_subsystem(&auth_context))) {
 688                         return status;
 689                 }
 690
 691                 chal = auth_context->get_ntlm_challenge(auth_context);
 692
 693                 if (!make_user_info_netlogon_interactive(&user_info,
 694                                                          nt_username, nt_domain,
 695                                                          nt_workstation, chal,
 696                                                          ctr->auth.id1.lm_owf.data,
 697                                                          ctr->auth.id1.nt_owf.data,
 698                                                          p->dc.sess_key)) {
 699                         status = NT_STATUS_NO_MEMORY;
 700                 }
 701                 break;
 702         }
 703         default:
 704                 DEBUG(2,("SAM Logon: unsupported switch value\n"));
 705                 return NT_STATUS_INVALID_INFO_CLASS;
 706         } /* end switch */
 707
 708         if ( NT_STATUS_IS_OK(status) ) {
 709                 status = auth_context->check_ntlm_password(auth_context,
 710                         user_info, &server_info);
 711         }
 712
 713         (auth_context->free)(&auth_context);
 714         free_user_info(&user_info);
 715
 716         DEBUG(5, ("_net_sam_logon: check_password returned status %s\n",
 717                   nt_errstr(status)));
 718
 719         /* Check account and password */
 720
 721         if (!NT_STATUS_IS_OK(status)) {
 722                 free_server_info(&server_info);
 723                 return status;
 724         }
 725
 726         if (server_info->guest) {
 727                 /* We don't like guest domain logons... */
 728                 DEBUG(5,("_net_sam_logon: Attempted domain logon as GUEST denied.\n"));
 729                 free_server_info(&server_info);
 730                 return NT_STATUS_LOGON_FAILURE;
 731         }
 732
 733         /* This is the point at which, if the login was successful, that
 734            the SAM Local Security Authority should record that the user is
 735            logged in to the domain.  */
 736
 737         {
 738                 DOM_GID *gids = NULL;
 739                 const DOM_SID *user_sid = NULL;
 740                 const DOM_SID *group_sid = NULL;
 741                 DOM_SID domain_sid;
 742                 uint32 user_rid, group_rid;
 743
 744                 int num_gids = 0;
 745                 pstring my_name;
 746                 fstring user_sid_string;
 747                 fstring group_sid_string;
 748                 uchar user_session_key[16];
 749                 uchar lm_session_key[16];
 750                 uchar netlogon_sess_key[16];
 751
 752                 sampw = server_info->sam_account;
 753
 754                 /* set up pointer indicating user/password failed to be found */
 755                 usr_info->ptr_user_info = 0;
 756
 757                 user_sid = pdb_get_user_sid(sampw);
 758                 group_sid = pdb_get_group_sid(sampw);
 759
 760                 sid_copy(&domain_sid, user_sid);
 761                 sid_split_rid(&domain_sid, &user_rid);
 762
 763                 if (!sid_peek_check_rid(&domain_sid, group_sid, &group_rid)) {
 764                         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",
 765                                   pdb_get_domain(sampw), pdb_get_username(sampw),
 766                                   sid_to_string(user_sid_string, user_sid),
 767                                   sid_to_string(group_sid_string, group_sid)));
 768                         return NT_STATUS_UNSUCCESSFUL;
 769                 }
 770
 771                 pstrcpy(my_name, global_myname());
 772
 773                 if (!NT_STATUS_IS_OK(status
 774                                      = nt_token_to_group_list(p->mem_ctx,
 775                                                               &domain_sid,
 776                                                               server_info->ptok,
 777                                                               &num_gids,
 778                                                               &gids))) {
 779                         return status;
 780                 }
 781
 782                 ZERO_STRUCT(netlogon_sess_key);
 783                 memcpy(netlogon_sess_key, p->dc.sess_key, 8);
 784                 if (server_info->user_session_key.length) {
 785                         memcpy(user_session_key, server_info->user_session_key.data,
 786                                MIN(sizeof(user_session_key), server_info->user_session_key.length));
 787                         SamOEMhash(user_session_key, netlogon_sess_key, 16);
 788                 }
 789                 if (server_info->lm_session_key.length) {
 790                         memcpy(lm_session_key, server_info->lm_session_key.data,
 791                                MIN(sizeof(lm_session_key), server_info->lm_session_key.length));
 792                         SamOEMhash(lm_session_key, netlogon_sess_key, 16);
 793                 }
 794                 ZERO_STRUCT(netlogon_sess_key);
 795
 796                 init_net_user_info3(p->mem_ctx, usr_info,
 797                                     user_rid,
 798                                     group_rid,
 799                                     pdb_get_username(sampw),
 800                                     pdb_get_fullname(sampw),
 801                                     pdb_get_homedir(sampw),
 802                                     pdb_get_dir_drive(sampw),
 803                                     pdb_get_logon_script(sampw),
 804                                     pdb_get_profile_path(sampw),
 805                                     pdb_get_logon_time(sampw),
 806                                     get_time_t_max(),
 807                                     get_time_t_max(),
 808                                     pdb_get_pass_last_set_time(sampw),
 809                                     pdb_get_pass_can_change_time(sampw),
 810                                     pdb_get_pass_must_change_time(sampw),
 811
 812                                     0, /* logon_count */
 813                                     0, /* bad_pw_count */
 814                                     num_gids,    /* uint32 num_groups */
 815                                     gids    , /* DOM_GID *gids */
 816                                     0x20    , /* uint32 user_flgs (?) */
 817                                     server_info->user_session_key.length ? user_session_key : NULL,
 818                                     server_info->lm_session_key.length ? lm_session_key : NULL,
 819                                     my_name     , /* char *logon_srv */
 820                                     pdb_get_domain(sampw),
 821                                     &domain_sid,     /* DOM_SID *dom_sid */
 822                                     /* Should be users domain sid, not servers - for trusted domains */
 823
 824                                     NULL); /* char *other_sids */
 825                 ZERO_STRUCT(user_session_key);
 826                 ZERO_STRUCT(lm_session_key);
 827         }
 828         free_server_info(&server_info);
 829         return status;
 830 }
 831
 832 /*************************************************************************
 833  _ds_enum_dom_trusts
 834  *************************************************************************/
 835 #if 0   /* JERRY -- not correct */
 836 NTSTATUS _ds_enum_dom_trusts(pipes_struct *p, DS_Q_ENUM_DOM_TRUSTS *q_u,
 837                              DS_R_ENUM_DOM_TRUSTS *r_u)
 838 {
 839         NTSTATUS status = NT_STATUS_OK;
 840
 841         /* TODO: According to MSDN, the can only be executed against a
 842            DC or domain member running Windows 2000 or later.  Need
 843            to test against a standalone 2k server and see what it
 844            does.  A windows 2000 DC includes its own domain in the
 845            list.  --jerry */
 846
 847         return status;
 848 }
 849 #endif  /* JERRY */