source/rpc_server/srv_dfs_nt.c

   1 /*
   2  *  Unix SMB/CIFS implementation.
   3  *  RPC Pipe client / server routines for Dfs
   4  *  Copyright (C) Shirish Kalele        2000.
   5  *  Copyright (C) Jeremy Allison        2001.
   6  *  Copyright (C) Jelmer Vernooij       2005.
   7  *
   8  *  This program is free software; you can redistribute it and/or modify
   9  *  it under the terms of the GNU General Public License as published by
  10  *  the Free Software Foundation; either version 2 of the License, or
  11  *  (at your option) any later version.
  12  *
  13  *  This program is distributed in the hope that it will be useful,
  14  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16  *  GNU General Public License for more details.
  17  *
  18  *  You should have received a copy of the GNU General Public License
  19  *  along with this program; if not, write to the Free Software
  20  *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  21  */
  22
  23 /* This is the implementation of the dfs pipe. */
  24
  25 #include "includes.h"
  26
  27 #undef DBGC_CLASS
  28 #define DBGC_CLASS DBGC_MSDFS
  29
  30 /* This function does not return a WERROR or NTSTATUS code but rather 1 if
  31    dfs exists, or 0 otherwise. */
  32
  33 uint32 _dfs_GetManagerVersion(pipes_struct *p, NETDFS_Q_DFS_GETMANAGERVERSION *q_u, NETDFS_R_DFS_GETMANAGERVERSION *r_u)
  34 {
  35         if(lp_host_msdfs())
  36                 return 1;
  37         else
  38                 return 0;
  39 }
  40
  41 WERROR _dfs_Add(pipes_struct *p, NETDFS_Q_DFS_ADD* q_u, NETDFS_R_DFS_ADD *r_u)
  42 {
  43         struct current_user user;
  44         struct junction_map jn;
  45         struct referral* old_referral_list = NULL;
  46         BOOL self_ref = False;
  47         int consumedcnt = 0;
  48         BOOL exists = False;
  49
  50         pstring dfspath, servername, sharename;
  51         pstring altpath;
  52
  53         get_current_user(&user,p);
  54
  55         if (user.ut.uid != 0) {
  56                 DEBUG(10,("_dfs_add: uid != 0. Access denied.\n"));
  57                 return WERR_ACCESS_DENIED;
  58         }
  59
  60         unistr2_to_ascii(dfspath, &q_u->path, sizeof(dfspath)-1);
  61         unistr2_to_ascii(servername, &q_u->server, sizeof(servername)-1);
  62         unistr2_to_ascii(sharename, &q_u->share, sizeof(sharename)-1);
  63
  64         DEBUG(5,("init_reply_dfs_add: Request to add %s -> %s\\%s.\n",
  65                 dfspath, servername, sharename));
  66
  67         pstrcpy(altpath, servername);
  68         pstrcat(altpath, "\\");
  69         pstrcat(altpath, sharename);
  70
  71         /* The following call can change the cwd. */
  72         if(NT_STATUS_IS_OK(get_referred_path(p->mem_ctx, dfspath, &jn, &consumedcnt, &self_ref))) {
  73                 exists = True;
  74                 jn.referral_count += 1;
  75                 old_referral_list = jn.referral_list;
  76         } else {
  77                 jn.referral_count = 1;
  78         }
  79
  80         vfs_ChDir(p->conn,p->conn->connectpath);
  81
  82         jn.referral_list = TALLOC_ARRAY(p->mem_ctx, struct referral, jn.referral_count);
  83         if(jn.referral_list == NULL) {
  84                 DEBUG(0,("init_reply_dfs_add: talloc failed for referral list!\n"));
  85                 return WERR_DFS_INTERNAL_ERROR;
  86         }
  87
  88         if(old_referral_list) {
  89                 memcpy(jn.referral_list, old_referral_list, sizeof(struct referral)*jn.referral_count-1);
  90         }
  91
  92         jn.referral_list[jn.referral_count-1].proximity = 0;
  93         jn.referral_list[jn.referral_count-1].ttl = REFERRAL_TTL;
  94
  95         pstrcpy(jn.referral_list[jn.referral_count-1].alternate_path, altpath);
  96
  97         if(!create_msdfs_link(&jn, exists)) {
  98                 vfs_ChDir(p->conn,p->conn->connectpath);
  99                 return WERR_DFS_CANT_CREATE_JUNCT;
 100         }
 101         vfs_ChDir(p->conn,p->conn->connectpath);
 102
 103         return WERR_OK;
 104 }
 105
 106 WERROR _dfs_Remove(pipes_struct *p, NETDFS_Q_DFS_REMOVE *q_u,
 107                    NETDFS_R_DFS_REMOVE *r_u)
 108 {
 109         struct current_user user;
 110         struct junction_map jn;
 111         BOOL self_ref = False;
 112         int consumedcnt = 0;
 113         BOOL found = False;
 114
 115         pstring dfspath, servername, sharename;
 116         pstring altpath;
 117
 118         get_current_user(&user,p);
 119
 120         if (user.ut.uid != 0) {
 121                 DEBUG(10,("_dfs_remove: uid != 0. Access denied.\n"));
 122                 return WERR_ACCESS_DENIED;
 123         }
 124
 125         unistr2_to_ascii(dfspath, &q_u->path, sizeof(dfspath)-1);
 126         if(q_u->ptr0_server) {
 127                 unistr2_to_ascii(servername, &q_u->server, sizeof(servername)-1);
 128         }
 129
 130         if(q_u->ptr0_share) {
 131                 unistr2_to_ascii(sharename, &q_u->share, sizeof(sharename)-1);
 132         }
 133
 134         if(q_u->ptr0_server && q_u->ptr0_share) {
 135                 pstrcpy(altpath, servername);
 136                 pstrcat(altpath, "\\");
 137                 pstrcat(altpath, sharename);
 138                 strlower_m(altpath);
 139         }
 140
 141         DEBUG(5,("init_reply_dfs_remove: Request to remove %s -> %s\\%s.\n",
 142                 dfspath, servername, sharename));
 143
 144         if(!NT_STATUS_IS_OK(get_referred_path(p->mem_ctx, dfspath, &jn, &consumedcnt, &self_ref))) {
 145                 return WERR_DFS_NO_SUCH_VOL;
 146         }
 147
 148         /* if no server-share pair given, remove the msdfs link completely */
 149         if(!q_u->ptr0_server && !q_u->ptr0_share) {
 150                 if(!remove_msdfs_link(&jn)) {
 151                         vfs_ChDir(p->conn,p->conn->connectpath);
 152                         return WERR_DFS_NO_SUCH_VOL;
 153                 }
 154                 vfs_ChDir(p->conn,p->conn->connectpath);
 155         } else {
 156                 int i=0;
 157                 /* compare each referral in the list with the one to remove */
 158                 DEBUG(10,("altpath: .%s. refcnt: %d\n", altpath, jn.referral_count));
 159                 for(i=0;i<jn.referral_count;i++) {
 160                         pstring refpath;
 161                         pstrcpy(refpath,jn.referral_list[i].alternate_path);
 162                         trim_char(refpath, '\\', '\\');
 163                         DEBUG(10,("_dfs_remove:  refpath: .%s.\n", refpath));
 164                         if(strequal(refpath, altpath)) {
 165                                 *(jn.referral_list[i].alternate_path)='\0';
 166                                 DEBUG(10,("_dfs_remove: Removal request matches referral %s\n",
 167                                         refpath));
 168                                 found = True;
 169                         }
 170                 }
 171
 172                 if(!found) {
 173                         return WERR_DFS_NO_SUCH_SHARE;
 174                 }
 175
 176                 /* Only one referral, remove it */
 177                 if(jn.referral_count == 1) {
 178                         if(!remove_msdfs_link(&jn)) {
 179                                 vfs_ChDir(p->conn,p->conn->connectpath);
 180                                 return WERR_DFS_NO_SUCH_VOL;
 181                         }
 182                 } else {
 183                         if(!create_msdfs_link(&jn, True)) {
 184                                 vfs_ChDir(p->conn,p->conn->connectpath);
 185                                 return WERR_DFS_CANT_CREATE_JUNCT;
 186                         }
 187                 }
 188                 vfs_ChDir(p->conn,p->conn->connectpath);
 189         }
 190
 191         return WERR_OK;
 192 }
 193
 194 static BOOL init_reply_dfs_info_1(struct junction_map* j, NETDFS_DFS_INFO1* dfs1)
 195 {
 196         pstring str;
 197         dfs1->ptr0_path = 1;
 198         slprintf(str, sizeof(pstring)-1, "\\\\%s\\%s\\%s", global_myname(),
 199                 j->service_name, j->volume_name);
 200         DEBUG(5,("init_reply_dfs_info_1: initing entrypath: %s\n",str));
 201         init_unistr2(&dfs1->path,str,UNI_STR_TERMINATE);
 202         return True;
 203 }
 204
 205 static BOOL init_reply_dfs_info_2(struct junction_map* j, NETDFS_DFS_INFO2* dfs2)
 206 {
 207         pstring str;
 208         dfs2->ptr0_path = 1;
 209         slprintf(str, sizeof(pstring)-1, "\\\\%s\\%s\\%s", global_myname(),
 210                 j->service_name, j->volume_name);
 211         init_unistr2(&dfs2->path, str, UNI_STR_TERMINATE);
 212         dfs2->ptr0_comment = 0;
 213         init_unistr2(&dfs2->comment, j->comment, UNI_STR_TERMINATE);
 214         dfs2->state = 1; /* set up state of dfs junction as OK */
 215         dfs2->num_stores = j->referral_count;
 216         return True;
 217 }
 218
 219 static BOOL init_reply_dfs_info_3(TALLOC_CTX *ctx, struct junction_map* j, NETDFS_DFS_INFO3* dfs3)
 220 {
 221         int ii;
 222         pstring str;
 223         dfs3->ptr0_path = 1;
 224         if (j->volume_name[0] == '\0')
 225                 slprintf(str, sizeof(pstring)-1, "\\\\%s\\%s",
 226                         global_myname(), j->service_name);
 227         else
 228                 slprintf(str, sizeof(pstring)-1, "\\\\%s\\%s\\%s", global_myname(),
 229                         j->service_name, j->volume_name);
 230
 231         init_unistr2(&dfs3->path, str, UNI_STR_TERMINATE);
 232         dfs3->ptr0_comment = 1;
 233         init_unistr2(&dfs3->comment, j->comment, UNI_STR_TERMINATE);
 234         dfs3->state = 1;
 235         dfs3->num_stores = dfs3->size_stores = j->referral_count;
 236
 237         /* also enumerate the stores */
 238         if (j->referral_count) {
 239                 dfs3->stores = TALLOC_ARRAY(ctx, NETDFS_DFS_STORAGEINFO, j->referral_count);
 240                 if (!dfs3->stores)
 241                         return False;
 242                 memset(dfs3->stores, '\0', j->referral_count * sizeof(NETDFS_DFS_STORAGEINFO));
 243                 dfs3->ptr0_stores = 1;
 244         } else {
 245                 dfs3->stores = NULL;
 246                 dfs3->ptr0_stores = 0;
 247         }
 248
 249         for(ii=0;ii<j->referral_count;ii++) {
 250                 char* p;
 251                 pstring path;
 252                 NETDFS_DFS_STORAGEINFO* stor = &(dfs3->stores[ii]);
 253                 struct referral* ref = &(j->referral_list[ii]);
 254
 255                 pstrcpy(path, ref->alternate_path);
 256                 trim_char(path,'\\','\0');
 257                 p = strrchr_m(path,'\\');
 258                 if(p==NULL) {
 259                         DEBUG(4,("init_reply_dfs_info_3: invalid path: no \\ found in %s\n",path));
 260                         continue;
 261                 }
 262                 *p = '\0';
 263                 DEBUG(5,("storage %d: %s.%s\n",ii,path,p+1));
 264                 stor->state = 2; /* set all stores as ONLINE */
 265                 init_unistr2(&stor->server, path, UNI_STR_TERMINATE);
 266                 init_unistr2(&stor->share,  p+1, UNI_STR_TERMINATE);
 267                 stor->ptr0_server = stor->ptr0_share = 1;
 268         }
 269         return True;
 270 }
 271
 272 static BOOL init_reply_dfs_info_100(struct junction_map* j, NETDFS_DFS_INFO100* dfs100)
 273 {
 274         dfs100->ptr0_comment = 1;
 275         init_unistr2(&dfs100->comment, j->comment, UNI_STR_TERMINATE);
 276         return True;
 277 }
 278
 279
 280 WERROR _dfs_Enum(pipes_struct *p, NETDFS_Q_DFS_ENUM *q_u, NETDFS_R_DFS_ENUM *r_u)
 281 {
 282         uint32 level = q_u->level;
 283         struct junction_map jn[MAX_MSDFS_JUNCTIONS];
 284         int num_jn = 0;
 285         int i;
 286
 287         num_jn = enum_msdfs_links(p->mem_ctx, jn, ARRAY_SIZE(jn));
 288         vfs_ChDir(p->conn,p->conn->connectpath);
 289
 290         DEBUG(5,("_dfs_Enum: %d junctions found in Dfs, doing level %d\n", num_jn, level));
 291
 292         r_u->ptr0_info = q_u->ptr0_info;
 293         r_u->ptr0_total = q_u->ptr0_total;
 294         r_u->total = num_jn;
 295
 296         r_u->info = q_u->info;
 297
 298         /* Create the return array */
 299         switch (level) {
 300         case 1:
 301                 r_u->info.e.u.info1.count = num_jn;
 302                 if (num_jn) {
 303                         if ((r_u->info.e.u.info1.s = TALLOC_ARRAY(p->mem_ctx, NETDFS_DFS_INFO1, num_jn)) == NULL) {
 304                                 return WERR_NOMEM;
 305                         }
 306                         r_u->info.e.u.info1.ptr0_s = 1;
 307                         r_u->info.e.u.info1.size_s = num_jn;
 308                 }
 309                 break;
 310         case 2:
 311                 r_u->info.e.u.info2.count = num_jn;
 312                 if (num_jn) {
 313                         if ((r_u->info.e.u.info2.s = TALLOC_ARRAY(p->mem_ctx, NETDFS_DFS_INFO2, num_jn)) == NULL) {
 314                                 return WERR_NOMEM;
 315                         }
 316                         r_u->info.e.u.info2.ptr0_s = 1;
 317                         r_u->info.e.u.info2.size_s = num_jn;
 318                 }
 319                 break;
 320         case 3:
 321                 r_u->info.e.u.info3.count = num_jn;
 322                 if (num_jn) {
 323                         if ((r_u->info.e.u.info3.s = TALLOC_ARRAY(p->mem_ctx, NETDFS_DFS_INFO3, num_jn)) == NULL) {
 324                                 return WERR_NOMEM;
 325                         }
 326                         r_u->info.e.u.info3.ptr0_s = 1;
 327                         r_u->info.e.u.info3.size_s = num_jn;
 328                 }
 329                 break;
 330         default:
 331                 return WERR_INVALID_PARAM;
 332         }
 333
 334         for (i = 0; i < num_jn; i++) {
 335                 switch (level) {
 336                 case 1:
 337                         init_reply_dfs_info_1(&jn[i], &r_u->info.e.u.info1.s[i]);
 338                         break;
 339                 case 2:
 340                         init_reply_dfs_info_2(&jn[i], &r_u->info.e.u.info2.s[i]);
 341                         break;
 342                 case 3:
 343                         init_reply_dfs_info_3(p->mem_ctx, &jn[i], &r_u->info.e.u.info3.s[i]);
 344                         break;
 345                 default:
 346                         return WERR_INVALID_PARAM;
 347                 }
 348         }
 349
 350         r_u->status = WERR_OK;
 351
 352         return r_u->status;
 353 }
 354
 355 WERROR _dfs_GetInfo(pipes_struct *p, NETDFS_Q_DFS_GETINFO *q_u,
 356                      NETDFS_R_DFS_GETINFO *r_u)
 357 {
 358         UNISTR2* uni_path = &q_u->path;
 359         uint32 level = q_u->level;
 360         int consumedcnt = sizeof(pstring);
 361         pstring path;
 362         BOOL ret = False;
 363         BOOL self_ref = False;
 364         struct junction_map jn;
 365
 366         unistr2_to_ascii(path, uni_path, sizeof(path)-1);
 367         if(!create_junction(path, &jn))
 368                 return WERR_DFS_NO_SUCH_SERVER;
 369
 370         /* The following call can change the cwd. */
 371         if(!NT_STATUS_IS_OK(get_referred_path(p->mem_ctx, path, &jn, &consumedcnt, &self_ref)) || consumedcnt < strlen(path)) {
 372                 vfs_ChDir(p->conn,p->conn->connectpath);
 373                 return WERR_DFS_NO_SUCH_VOL;
 374         }
 375
 376         vfs_ChDir(p->conn,p->conn->connectpath);
 377         r_u->info.switch_value = level;
 378         r_u->info.ptr0 = 1;
 379         r_u->status = WERR_OK;
 380
 381         switch (level) {
 382                 case 1: ret = init_reply_dfs_info_1(&jn, &r_u->info.u.info1); break;
 383                 case 2: ret = init_reply_dfs_info_2(&jn, &r_u->info.u.info2); break;
 384                 case 3: ret = init_reply_dfs_info_3(p->mem_ctx, &jn, &r_u->info.u.info3); break;
 385                 case 100: ret = init_reply_dfs_info_100(&jn, &r_u->info.u.info100); break;
 386                 default:
 387                         r_u->info.ptr0 = 1;
 388                         r_u->info.switch_value = 0;
 389                         r_u->status = WERR_OK;
 390                         ret = True;
 391                         break;
 392         }
 393
 394         if (!ret)
 395                 r_u->status = WERR_INVALID_PARAM;
 396
 397         return r_u->status;
 398 }
 399
 400 WERROR _dfs_SetInfo(pipes_struct *p, NETDFS_Q_DFS_SETINFO *q_u, NETDFS_R_DFS_SETINFO *r_u)
 401 {
 402         /* FIXME: Implement your code here */
 403         return WERR_NOT_SUPPORTED;
 404 }
 405
 406 WERROR _dfs_Rename(pipes_struct *p, NETDFS_Q_DFS_RENAME *q_u, NETDFS_R_DFS_RENAME *r_u)
 407 {
 408         /* FIXME: Implement your code here */
 409         return WERR_NOT_SUPPORTED;
 410 }
 411
 412 WERROR _dfs_Move(pipes_struct *p, NETDFS_Q_DFS_MOVE *q_u, NETDFS_R_DFS_MOVE *r_u)
 413 {
 414         /* FIXME: Implement your code here */
 415         return WERR_NOT_SUPPORTED;
 416 }
 417
 418 WERROR _dfs_ManagerGetConfigInfo(pipes_struct *p, NETDFS_Q_DFS_MANAGERGETCONFIGINFO *q_u, NETDFS_R_DFS_MANAGERGETCONFIGINFO *r_u)
 419 {
 420         /* FIXME: Implement your code here */
 421         return WERR_NOT_SUPPORTED;
 422 }
 423
 424 WERROR _dfs_ManagerSendSiteInfo(pipes_struct *p, NETDFS_Q_DFS_MANAGERSENDSITEINFO *q_u, NETDFS_R_DFS_MANAGERSENDSITEINFO *r_u)
 425 {
 426         /* FIXME: Implement your code here */
 427         return WERR_NOT_SUPPORTED;
 428 }
 429
 430 WERROR _dfs_AddFtRoot(pipes_struct *p, NETDFS_Q_DFS_ADDFTROOT *q_u, NETDFS_R_DFS_ADDFTROOT *r_u)
 431 {
 432         /* FIXME: Implement your code here */
 433         return WERR_NOT_SUPPORTED;
 434 }
 435
 436 WERROR _dfs_RemoveFtRoot(pipes_struct *p, NETDFS_Q_DFS_REMOVEFTROOT *q_u, NETDFS_R_DFS_REMOVEFTROOT *r_u)
 437 {
 438         /* FIXME: Implement your code here */
 439         return WERR_NOT_SUPPORTED;
 440 }
 441
 442 WERROR _dfs_AddStdRoot(pipes_struct *p, NETDFS_Q_DFS_ADDSTDROOT *q_u, NETDFS_R_DFS_ADDSTDROOT *r_u)
 443 {
 444         /* FIXME: Implement your code here */
 445         return WERR_NOT_SUPPORTED;
 446 }
 447
 448 WERROR _dfs_RemoveStdRoot(pipes_struct *p, NETDFS_Q_DFS_REMOVESTDROOT *q_u, NETDFS_R_DFS_REMOVESTDROOT *r_u)
 449 {
 450         /* FIXME: Implement your code here */
 451         return WERR_NOT_SUPPORTED;
 452 }
 453
 454 WERROR _dfs_ManagerInitialize(pipes_struct *p, NETDFS_Q_DFS_MANAGERINITIALIZE *q_u, NETDFS_R_DFS_MANAGERINITIALIZE *r_u)
 455 {
 456         /* FIXME: Implement your code here */
 457         return WERR_NOT_SUPPORTED;
 458 }
 459
 460 WERROR _dfs_AddStdRootForced(pipes_struct *p, NETDFS_Q_DFS_ADDSTDROOTFORCED *q_u, NETDFS_R_DFS_ADDSTDROOTFORCED *r_u)
 461 {
 462         /* FIXME: Implement your code here */
 463         return WERR_NOT_SUPPORTED;
 464 }
 465
 466 WERROR _dfs_GetDcAddress(pipes_struct *p, NETDFS_Q_DFS_GETDCADDRESS *q_u, NETDFS_R_DFS_GETDCADDRESS *r_u)
 467 {
 468         /* FIXME: Implement your code here */
 469         return WERR_NOT_SUPPORTED;
 470 }
 471
 472 WERROR _dfs_SetDcAddress(pipes_struct *p, NETDFS_Q_DFS_SETDCADDRESS *q_u, NETDFS_R_DFS_SETDCADDRESS *r_u)
 473 {
 474         /* FIXME: Implement your code here */
 475         return WERR_NOT_SUPPORTED;
 476 }
 477
 478 WERROR _dfs_FlushFtTable(pipes_struct *p, NETDFS_Q_DFS_FLUSHFTTABLE *q_u, NETDFS_R_DFS_FLUSHFTTABLE *r_u)
 479 {
 480         /* FIXME: Implement your code here */
 481         return WERR_NOT_SUPPORTED;
 482 }
 483
 484 WERROR _dfs_Add2(pipes_struct *p, NETDFS_Q_DFS_ADD2 *q_u, NETDFS_R_DFS_ADD2 *r_u)
 485 {
 486         /* FIXME: Implement your code here */
 487         return WERR_NOT_SUPPORTED;
 488 }
 489
 490 WERROR _dfs_Remove2(pipes_struct *p, NETDFS_Q_DFS_REMOVE2 *q_u, NETDFS_R_DFS_REMOVE2 *r_u)
 491 {
 492         /* FIXME: Implement your code here */
 493         return WERR_NOT_SUPPORTED;
 494 }
 495
 496 WERROR _dfs_EnumEx(pipes_struct *p, NETDFS_Q_DFS_ENUMEX *q_u, NETDFS_R_DFS_ENUMEX *r_u)
 497 {
 498         /* FIXME: Implement your code here */
 499         return WERR_NOT_SUPPORTED;
 500 }
 501
 502 WERROR _dfs_SetInfo2(pipes_struct *p, NETDFS_Q_DFS_SETINFO2 *q_u, NETDFS_R_DFS_SETINFO2 *r_u)
 503 {
 504         /* FIXME: Implement your code here */
 505         return WERR_NOT_SUPPORTED;
 506 }