release/src/router/samba3/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 exists = False;
  47
  48         pstring dfspath, servername, sharename;
  49         pstring altpath;
  50
  51         get_current_user(&user,p);
  52
  53         if (user.ut.uid != 0) {
  54                 DEBUG(10,("_dfs_add: uid != 0. Access denied.\n"));
  55                 return WERR_ACCESS_DENIED;
  56         }
  57
  58         unistr2_to_ascii(dfspath, &q_u->path, sizeof(dfspath)-1);
  59         unistr2_to_ascii(servername, &q_u->server, sizeof(servername)-1);
  60         unistr2_to_ascii(sharename, &q_u->share, sizeof(sharename)-1);
  61
  62         DEBUG(5,("init_reply_dfs_add: Request to add %s -> %s\\%s.\n",
  63                 dfspath, servername, sharename));
  64
  65         pstrcpy(altpath, servername);
  66         pstrcat(altpath, "\\");
  67         pstrcat(altpath, sharename);
  68
  69         /* The following call can change the cwd. */
  70         if(get_referred_path(p->mem_ctx, dfspath, &jn, NULL, NULL)) {
  71                 exists = True;
  72                 jn.referral_count += 1;
  73                 old_referral_list = jn.referral_list;
  74         } else {
  75                 jn.referral_count = 1;
  76         }
  77
  78         vfs_ChDir(p->conn,p->conn->connectpath);
  79
  80         jn.referral_list = TALLOC_ARRAY(p->mem_ctx, struct referral, jn.referral_count);
  81         if(jn.referral_list == NULL) {
  82                 DEBUG(0,("init_reply_dfs_add: talloc failed for referral list!\n"));
  83                 return WERR_DFS_INTERNAL_ERROR;
  84         }
  85
  86         if(old_referral_list) {
  87                 memcpy(jn.referral_list, old_referral_list, sizeof(struct referral)*jn.referral_count-1);
  88         }
  89
  90         jn.referral_list[jn.referral_count-1].proximity = 0;
  91         jn.referral_list[jn.referral_count-1].ttl = REFERRAL_TTL;
  92
  93         pstrcpy(jn.referral_list[jn.referral_count-1].alternate_path, altpath);
  94
  95         if(!create_msdfs_link(&jn, exists)) {
  96                 vfs_ChDir(p->conn,p->conn->connectpath);
  97                 return WERR_DFS_CANT_CREATE_JUNCT;
  98         }
  99         vfs_ChDir(p->conn,p->conn->connectpath);
 100
 101         return WERR_OK;
 102 }
 103
 104 WERROR _dfs_Remove(pipes_struct *p, NETDFS_Q_DFS_REMOVE *q_u,
 105                    NETDFS_R_DFS_REMOVE *r_u)
 106 {
 107         struct current_user user;
 108         struct junction_map jn;
 109         BOOL found = False;
 110
 111         pstring dfspath, servername, sharename;
 112         pstring altpath;
 113
 114         get_current_user(&user,p);
 115
 116         if (user.ut.uid != 0) {
 117                 DEBUG(10,("_dfs_remove: uid != 0. Access denied.\n"));
 118                 return WERR_ACCESS_DENIED;
 119         }
 120
 121         unistr2_to_ascii(dfspath, &q_u->path, sizeof(dfspath)-1);
 122         if(q_u->ptr0_server) {
 123                 unistr2_to_ascii(servername, &q_u->server, sizeof(servername)-1);
 124         }
 125
 126         if(q_u->ptr0_share) {
 127                 unistr2_to_ascii(sharename, &q_u->share, sizeof(sharename)-1);
 128         }
 129
 130         if(q_u->ptr0_server && q_u->ptr0_share) {
 131                 pstrcpy(altpath, servername);
 132                 pstrcat(altpath, "\\");
 133                 pstrcat(altpath, sharename);
 134                 strlower_m(altpath);
 135         }
 136
 137         DEBUG(5,("init_reply_dfs_remove: Request to remove %s -> %s\\%s.\n",
 138                 dfspath, servername, sharename));
 139
 140         if(!get_referred_path(p->mem_ctx, dfspath, &jn, NULL, NULL)) {
 141                 return WERR_DFS_NO_SUCH_VOL;
 142         }
 143
 144         /* if no server-share pair given, remove the msdfs link completely */
 145         if(!q_u->ptr0_server && !q_u->ptr0_share) {
 146                 if(!remove_msdfs_link(&jn)) {
 147                         vfs_ChDir(p->conn,p->conn->connectpath);
 148                         return WERR_DFS_NO_SUCH_VOL;
 149                 }
 150                 vfs_ChDir(p->conn,p->conn->connectpath);
 151         } else {
 152                 int i=0;
 153                 /* compare each referral in the list with the one to remove */
 154                 DEBUG(10,("altpath: .%s. refcnt: %d\n", altpath, jn.referral_count));
 155                 for(i=0;i<jn.referral_count;i++) {
 156                         pstring refpath;
 157                         pstrcpy(refpath,jn.referral_list[i].alternate_path);
 158                         trim_char(refpath, '\\', '\\');
 159                         DEBUG(10,("_dfs_remove:  refpath: .%s.\n", refpath));
 160                         if(strequal(refpath, altpath)) {
 161                                 *(jn.referral_list[i].alternate_path)='\0';
 162                                 DEBUG(10,("_dfs_remove: Removal request matches referral %s\n",
 163                                         refpath));
 164                                 found = True;
 165                         }
 166                 }
 167
 168                 if(!found) {
 169                         return WERR_DFS_NO_SUCH_SHARE;
 170                 }
 171
 172                 /* Only one referral, remove it */
 173                 if(jn.referral_count == 1) {
 174                         if(!remove_msdfs_link(&jn)) {
 175                                 vfs_ChDir(p->conn,p->conn->connectpath);
 176                                 return WERR_DFS_NO_SUCH_VOL;
 177                         }
 178                 } else {
 179                         if(!create_msdfs_link(&jn, True)) {
 180                                 vfs_ChDir(p->conn,p->conn->connectpath);
 181                                 return WERR_DFS_CANT_CREATE_JUNCT;
 182                         }
 183                 }
 184                 vfs_ChDir(p->conn,p->conn->connectpath);
 185         }
 186
 187         return WERR_OK;
 188 }
 189
 190 static BOOL init_reply_dfs_info_1(struct junction_map* j, NETDFS_DFS_INFO1* dfs1)
 191 {
 192         pstring str;
 193         dfs1->ptr0_path = 1;
 194         slprintf(str, sizeof(pstring)-1, "\\\\%s\\%s\\%s", global_myname(),
 195                 j->service_name, j->volume_name);
 196         DEBUG(5,("init_reply_dfs_info_1: initing entrypath: %s\n",str));
 197         init_unistr2(&dfs1->path,str,UNI_STR_TERMINATE);
 198         return True;
 199 }
 200
 201 static BOOL init_reply_dfs_info_2(struct junction_map* j, NETDFS_DFS_INFO2* dfs2)
 202 {
 203         pstring str;
 204         dfs2->ptr0_path = 1;
 205         slprintf(str, sizeof(pstring)-1, "\\\\%s\\%s\\%s", global_myname(),
 206                 j->service_name, j->volume_name);
 207         init_unistr2(&dfs2->path, str, UNI_STR_TERMINATE);
 208         dfs2->ptr0_comment = 0;
 209         init_unistr2(&dfs2->comment, j->comment, UNI_STR_TERMINATE);
 210         dfs2->state = 1; /* set up state of dfs junction as OK */
 211         dfs2->num_stores = j->referral_count;
 212         return True;
 213 }
 214
 215 static BOOL init_reply_dfs_info_3(TALLOC_CTX *ctx, struct junction_map* j, NETDFS_DFS_INFO3* dfs3)
 216 {
 217         int ii;
 218         pstring str;
 219         dfs3->ptr0_path = 1;
 220         if (j->volume_name[0] == '\0')
 221                 slprintf(str, sizeof(pstring)-1, "\\\\%s\\%s",
 222                         global_myname(), j->service_name);
 223         else
 224                 slprintf(str, sizeof(pstring)-1, "\\\\%s\\%s\\%s", global_myname(),
 225                         j->service_name, j->volume_name);
 226
 227         init_unistr2(&dfs3->path, str, UNI_STR_TERMINATE);
 228         dfs3->ptr0_comment = 1;
 229         init_unistr2(&dfs3->comment, j->comment, UNI_STR_TERMINATE);
 230         dfs3->state = 1;
 231         dfs3->num_stores = dfs3->size_stores = j->referral_count;
 232         dfs3->ptr0_stores = 1;
 233
 234         /* also enumerate the stores */
 235         dfs3->stores = TALLOC_ARRAY(ctx, NETDFS_DFS_STORAGEINFO, j->referral_count);
 236         if (!dfs3->stores)
 237                 return False;
 238
 239         memset(dfs3->stores, '\0', j->referral_count * sizeof(NETDFS_DFS_STORAGEINFO));
 240
 241         for(ii=0;ii<j->referral_count;ii++) {
 242                 char* p;
 243                 pstring path;
 244                 NETDFS_DFS_STORAGEINFO* stor = &(dfs3->stores[ii]);
 245                 struct referral* ref = &(j->referral_list[ii]);
 246
 247                 pstrcpy(path, ref->alternate_path);
 248                 trim_char(path,'\\','\0');
 249                 p = strrchr_m(path,'\\');
 250                 if(p==NULL) {
 251                         DEBUG(4,("init_reply_dfs_info_3: invalid path: no \\ found in %s\n",path));
 252                         continue;
 253                 }
 254                 *p = '\0';
 255                 DEBUG(5,("storage %d: %s.%s\n",ii,path,p+1));
 256                 stor->state = 2; /* set all stores as ONLINE */
 257                 init_unistr2(&stor->server, path, UNI_STR_TERMINATE);
 258                 init_unistr2(&stor->share,  p+1, UNI_STR_TERMINATE);
 259                 stor->ptr0_server = stor->ptr0_share = 1;
 260         }
 261         return True;
 262 }
 263
 264 static BOOL init_reply_dfs_info_100(struct junction_map* j, NETDFS_DFS_INFO100* dfs100)
 265 {
 266         dfs100->ptr0_comment = 1;
 267         init_unistr2(&dfs100->comment, j->comment, UNI_STR_TERMINATE);
 268         return True;
 269 }
 270
 271
 272 WERROR _dfs_Enum(pipes_struct *p, NETDFS_Q_DFS_ENUM *q_u, NETDFS_R_DFS_ENUM *r_u)
 273 {
 274         uint32 level = q_u->level;
 275         struct junction_map jn[MAX_MSDFS_JUNCTIONS];
 276         int num_jn = 0;
 277         int i;
 278
 279         num_jn = enum_msdfs_links(p->mem_ctx, jn, ARRAY_SIZE(jn));
 280         vfs_ChDir(p->conn,p->conn->connectpath);
 281
 282         DEBUG(5,("_dfs_Enum: %d junctions found in Dfs, doing level %d\n", num_jn, level));
 283
 284         r_u->ptr0_info = q_u->ptr0_info;
 285         r_u->ptr0_total = q_u->ptr0_total;
 286         r_u->total = num_jn;
 287
 288         r_u->info = q_u->info;
 289
 290         /* Create the return array */
 291         switch (level) {
 292         case 1:
 293                 if ((r_u->info.e.u.info1.s = TALLOC_ARRAY(p->mem_ctx, NETDFS_DFS_INFO1, num_jn)) == NULL) {
 294                         return WERR_NOMEM;
 295                 }
 296                 r_u->info.e.u.info1.count = num_jn;
 297                 r_u->info.e.u.info1.ptr0_s = 1;
 298                 r_u->info.e.u.info1.size_s = num_jn;
 299                 break;
 300         case 2:
 301                 if ((r_u->info.e.u.info2.s = TALLOC_ARRAY(p->mem_ctx, NETDFS_DFS_INFO2, num_jn)) == NULL) {
 302                         return WERR_NOMEM;
 303                 }
 304                 r_u->info.e.u.info2.count = num_jn;
 305                 r_u->info.e.u.info2.ptr0_s = 1;
 306                 r_u->info.e.u.info2.size_s = num_jn;
 307                 break;
 308         case 3:
 309                 if ((r_u->info.e.u.info3.s = TALLOC_ARRAY(p->mem_ctx, NETDFS_DFS_INFO3, num_jn)) == NULL) {
 310                         return WERR_NOMEM;
 311                 }
 312                 r_u->info.e.u.info3.count = num_jn;
 313                 r_u->info.e.u.info3.ptr0_s = 1;
 314                 r_u->info.e.u.info3.size_s = num_jn;
 315                 break;
 316         default:
 317                 return WERR_INVALID_PARAM;
 318         }
 319
 320         for (i = 0; i < num_jn; i++) {
 321                 switch (level) {
 322                 case 1:
 323                         init_reply_dfs_info_1(&jn[i], &r_u->info.e.u.info1.s[i]);
 324                         break;
 325                 case 2:
 326                         init_reply_dfs_info_2(&jn[i], &r_u->info.e.u.info2.s[i]);
 327                         break;
 328                 case 3:
 329                         init_reply_dfs_info_3(p->mem_ctx, &jn[i], &r_u->info.e.u.info3.s[i]);
 330                         break;
 331                 default:
 332                         return WERR_INVALID_PARAM;
 333                 }
 334         }
 335
 336         r_u->status = WERR_OK;
 337
 338         return r_u->status;
 339 }
 340
 341 WERROR _dfs_GetInfo(pipes_struct *p, NETDFS_Q_DFS_GETINFO *q_u,
 342                      NETDFS_R_DFS_GETINFO *r_u)
 343 {
 344         UNISTR2* uni_path = &q_u->path;
 345         uint32 level = q_u->level;
 346         int consumedcnt = sizeof(pstring);
 347         pstring path;
 348         BOOL ret = False;
 349         struct junction_map jn;
 350
 351         unistr2_to_ascii(path, uni_path, sizeof(path)-1);
 352         if(!create_junction(path, &jn))
 353                 return WERR_DFS_NO_SUCH_SERVER;
 354
 355         /* The following call can change the cwd. */
 356         if(!get_referred_path(p->mem_ctx, path, &jn, &consumedcnt, NULL) || consumedcnt < strlen(path)) {
 357                 vfs_ChDir(p->conn,p->conn->connectpath);
 358                 return WERR_DFS_NO_SUCH_VOL;
 359         }
 360
 361         vfs_ChDir(p->conn,p->conn->connectpath);
 362         r_u->info.switch_value = level;
 363         r_u->info.ptr0 = 1;
 364         r_u->status = WERR_OK;
 365
 366         switch (level) {
 367                 case 1: ret = init_reply_dfs_info_1(&jn, &r_u->info.u.info1); break;
 368                 case 2: ret = init_reply_dfs_info_2(&jn, &r_u->info.u.info2); break;
 369                 case 3: ret = init_reply_dfs_info_3(p->mem_ctx, &jn, &r_u->info.u.info3); break;
 370                 case 100: ret = init_reply_dfs_info_100(&jn, &r_u->info.u.info100); break;
 371                 default:
 372                         r_u->info.ptr0 = 1;
 373                         r_u->info.switch_value = 0;
 374                         r_u->status = WERR_OK;
 375                         ret = True;
 376                         break;
 377         }
 378
 379         if (!ret)
 380                 r_u->status = WERR_INVALID_PARAM;
 381
 382         return r_u->status;
 383 }
 384
 385 WERROR _dfs_SetInfo(pipes_struct *p, NETDFS_Q_DFS_SETINFO *q_u, NETDFS_R_DFS_SETINFO *r_u)
 386 {
 387         /* FIXME: Implement your code here */
 388         return WERR_NOT_SUPPORTED;
 389 }
 390
 391 WERROR _dfs_Rename(pipes_struct *p, NETDFS_Q_DFS_RENAME *q_u, NETDFS_R_DFS_RENAME *r_u)
 392 {
 393         /* FIXME: Implement your code here */
 394         return WERR_NOT_SUPPORTED;
 395 }
 396
 397 WERROR _dfs_Move(pipes_struct *p, NETDFS_Q_DFS_MOVE *q_u, NETDFS_R_DFS_MOVE *r_u)
 398 {
 399         /* FIXME: Implement your code here */
 400         return WERR_NOT_SUPPORTED;
 401 }
 402
 403 WERROR _dfs_ManagerGetConfigInfo(pipes_struct *p, NETDFS_Q_DFS_MANAGERGETCONFIGINFO *q_u, NETDFS_R_DFS_MANAGERGETCONFIGINFO *r_u)
 404 {
 405         /* FIXME: Implement your code here */
 406         return WERR_NOT_SUPPORTED;
 407 }
 408
 409 WERROR _dfs_ManagerSendSiteInfo(pipes_struct *p, NETDFS_Q_DFS_MANAGERSENDSITEINFO *q_u, NETDFS_R_DFS_MANAGERSENDSITEINFO *r_u)
 410 {
 411         /* FIXME: Implement your code here */
 412         return WERR_NOT_SUPPORTED;
 413 }
 414
 415 WERROR _dfs_AddFtRoot(pipes_struct *p, NETDFS_Q_DFS_ADDFTROOT *q_u, NETDFS_R_DFS_ADDFTROOT *r_u)
 416 {
 417         /* FIXME: Implement your code here */
 418         return WERR_NOT_SUPPORTED;
 419 }
 420
 421 WERROR _dfs_RemoveFtRoot(pipes_struct *p, NETDFS_Q_DFS_REMOVEFTROOT *q_u, NETDFS_R_DFS_REMOVEFTROOT *r_u)
 422 {
 423         /* FIXME: Implement your code here */
 424         return WERR_NOT_SUPPORTED;
 425 }
 426
 427 WERROR _dfs_AddStdRoot(pipes_struct *p, NETDFS_Q_DFS_ADDSTDROOT *q_u, NETDFS_R_DFS_ADDSTDROOT *r_u)
 428 {
 429         /* FIXME: Implement your code here */
 430         return WERR_NOT_SUPPORTED;
 431 }
 432
 433 WERROR _dfs_RemoveStdRoot(pipes_struct *p, NETDFS_Q_DFS_REMOVESTDROOT *q_u, NETDFS_R_DFS_REMOVESTDROOT *r_u)
 434 {
 435         /* FIXME: Implement your code here */
 436         return WERR_NOT_SUPPORTED;
 437 }
 438
 439 WERROR _dfs_ManagerInitialize(pipes_struct *p, NETDFS_Q_DFS_MANAGERINITIALIZE *q_u, NETDFS_R_DFS_MANAGERINITIALIZE *r_u)
 440 {
 441         /* FIXME: Implement your code here */
 442         return WERR_NOT_SUPPORTED;
 443 }
 444
 445 WERROR _dfs_AddStdRootForced(pipes_struct *p, NETDFS_Q_DFS_ADDSTDROOTFORCED *q_u, NETDFS_R_DFS_ADDSTDROOTFORCED *r_u)
 446 {
 447         /* FIXME: Implement your code here */
 448         return WERR_NOT_SUPPORTED;
 449 }
 450
 451 WERROR _dfs_GetDcAddress(pipes_struct *p, NETDFS_Q_DFS_GETDCADDRESS *q_u, NETDFS_R_DFS_GETDCADDRESS *r_u)
 452 {
 453         /* FIXME: Implement your code here */
 454         return WERR_NOT_SUPPORTED;
 455 }
 456
 457 WERROR _dfs_SetDcAddress(pipes_struct *p, NETDFS_Q_DFS_SETDCADDRESS *q_u, NETDFS_R_DFS_SETDCADDRESS *r_u)
 458 {
 459         /* FIXME: Implement your code here */
 460         return WERR_NOT_SUPPORTED;
 461 }
 462
 463 WERROR _dfs_FlushFtTable(pipes_struct *p, NETDFS_Q_DFS_FLUSHFTTABLE *q_u, NETDFS_R_DFS_FLUSHFTTABLE *r_u)
 464 {
 465         /* FIXME: Implement your code here */
 466         return WERR_NOT_SUPPORTED;
 467 }
 468
 469 WERROR _dfs_Add2(pipes_struct *p, NETDFS_Q_DFS_ADD2 *q_u, NETDFS_R_DFS_ADD2 *r_u)
 470 {
 471         /* FIXME: Implement your code here */
 472         return WERR_NOT_SUPPORTED;
 473 }
 474
 475 WERROR _dfs_Remove2(pipes_struct *p, NETDFS_Q_DFS_REMOVE2 *q_u, NETDFS_R_DFS_REMOVE2 *r_u)
 476 {
 477         /* FIXME: Implement your code here */
 478         return WERR_NOT_SUPPORTED;
 479 }
 480
 481 WERROR _dfs_EnumEx(pipes_struct *p, NETDFS_Q_DFS_ENUMEX *q_u, NETDFS_R_DFS_ENUMEX *r_u)
 482 {
 483         /* FIXME: Implement your code here */
 484         return WERR_NOT_SUPPORTED;
 485 }
 486
 487 WERROR _dfs_SetInfo2(pipes_struct *p, NETDFS_Q_DFS_SETINFO2 *q_u, NETDFS_R_DFS_SETINFO2 *r_u)
 488 {
 489         /* FIXME: Implement your code here */
 490         return WERR_NOT_SUPPORTED;
 491 }
 492