source3/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 junction_map jn;
  44         struct referral* old_referral_list = NULL;
  45         BOOL exists = False;
  46
  47         pstring dfspath, servername, sharename;
  48         pstring altpath;
  49
  50         if (p->pipe_user.ut.uid != 0) {
  51                 DEBUG(10,("_dfs_add: uid != 0. Access denied.\n"));
  52                 return WERR_ACCESS_DENIED;
  53         }
  54
  55         unistr2_to_ascii(dfspath, &q_u->path, sizeof(dfspath)-1);
  56         unistr2_to_ascii(servername, &q_u->server, sizeof(servername)-1);
  57         unistr2_to_ascii(sharename, &q_u->share, sizeof(sharename)-1);
  58
  59         DEBUG(5,("init_reply_dfs_add: Request to add %s -> %s\\%s.\n",
  60                 dfspath, servername, sharename));
  61
  62         pstrcpy(altpath, servername);
  63         pstrcat(altpath, "\\");
  64         pstrcat(altpath, sharename);
  65
  66         /* The following call can change the cwd. */
  67         if(get_referred_path(p->mem_ctx, dfspath, &jn, NULL, NULL)) {
  68                 exists = True;
  69                 jn.referral_count += 1;
  70                 old_referral_list = jn.referral_list;
  71         } else {
  72                 jn.referral_count = 1;
  73         }
  74
  75         vfs_ChDir(p->conn,p->conn->connectpath);
  76
  77         jn.referral_list = TALLOC_ARRAY(p->mem_ctx, struct referral, jn.referral_count);
  78         if(jn.referral_list == NULL) {
  79                 DEBUG(0,("init_reply_dfs_add: talloc failed for referral list!\n"));
  80                 return WERR_DFS_INTERNAL_ERROR;
  81         }
  82
  83         if(old_referral_list) {
  84                 memcpy(jn.referral_list, old_referral_list, sizeof(struct referral)*jn.referral_count-1);
  85         }
  86
  87         jn.referral_list[jn.referral_count-1].proximity = 0;
  88         jn.referral_list[jn.referral_count-1].ttl = REFERRAL_TTL;
  89
  90         pstrcpy(jn.referral_list[jn.referral_count-1].alternate_path, altpath);
  91
  92         if(!create_msdfs_link(&jn, exists)) {
  93                 vfs_ChDir(p->conn,p->conn->connectpath);
  94                 return WERR_DFS_CANT_CREATE_JUNCT;
  95         }
  96         vfs_ChDir(p->conn,p->conn->connectpath);
  97
  98         return WERR_OK;
  99 }
 100
 101 WERROR _dfs_Remove(pipes_struct *p, NETDFS_Q_DFS_REMOVE *q_u,
 102                    NETDFS_R_DFS_REMOVE *r_u)
 103 {
 104         struct junction_map jn;
 105         BOOL found = False;
 106
 107         pstring dfspath, servername, sharename;
 108         pstring altpath;
 109
 110         if (p->pipe_user.ut.uid != 0) {
 111                 DEBUG(10,("_dfs_remove: uid != 0. Access denied.\n"));
 112                 return WERR_ACCESS_DENIED;
 113         }
 114
 115         unistr2_to_ascii(dfspath, &q_u->path, sizeof(dfspath)-1);
 116         if(q_u->ptr0_server) {
 117                 unistr2_to_ascii(servername, &q_u->server, sizeof(servername)-1);
 118         }
 119
 120         if(q_u->ptr0_share) {
 121                 unistr2_to_ascii(sharename, &q_u->share, sizeof(sharename)-1);
 122         }
 123
 124         if(q_u->ptr0_server && q_u->ptr0_share) {
 125                 pstrcpy(altpath, servername);
 126                 pstrcat(altpath, "\\");
 127                 pstrcat(altpath, sharename);
 128                 strlower_m(altpath);
 129         }
 130
 131         DEBUG(5,("init_reply_dfs_remove: Request to remove %s -> %s\\%s.\n",
 132                 dfspath, servername, sharename));
 133
 134         if(!get_referred_path(p->mem_ctx, dfspath, &jn, NULL, NULL)) {
 135                 return WERR_DFS_NO_SUCH_VOL;
 136         }
 137
 138         /* if no server-share pair given, remove the msdfs link completely */
 139         if(!q_u->ptr0_server && !q_u->ptr0_share) {
 140                 if(!remove_msdfs_link(&jn)) {
 141                         vfs_ChDir(p->conn,p->conn->connectpath);
 142                         return WERR_DFS_NO_SUCH_VOL;
 143                 }
 144                 vfs_ChDir(p->conn,p->conn->connectpath);
 145         } else {
 146                 int i=0;
 147                 /* compare each referral in the list with the one to remove */
 148                 DEBUG(10,("altpath: .%s. refcnt: %d\n", altpath, jn.referral_count));
 149                 for(i=0;i<jn.referral_count;i++) {
 150                         pstring refpath;
 151                         pstrcpy(refpath,jn.referral_list[i].alternate_path);
 152                         trim_char(refpath, '\\', '\\');
 153                         DEBUG(10,("_dfs_remove:  refpath: .%s.\n", refpath));
 154                         if(strequal(refpath, altpath)) {
 155                                 *(jn.referral_list[i].alternate_path)='\0';
 156                                 DEBUG(10,("_dfs_remove: Removal request matches referral %s\n",
 157                                         refpath));
 158                                 found = True;
 159                         }
 160                 }
 161
 162                 if(!found) {
 163                         return WERR_DFS_NO_SUCH_SHARE;
 164                 }
 165
 166                 /* Only one referral, remove it */
 167                 if(jn.referral_count == 1) {
 168                         if(!remove_msdfs_link(&jn)) {
 169                                 vfs_ChDir(p->conn,p->conn->connectpath);
 170                                 return WERR_DFS_NO_SUCH_VOL;
 171                         }
 172                 } else {
 173                         if(!create_msdfs_link(&jn, True)) {
 174                                 vfs_ChDir(p->conn,p->conn->connectpath);
 175                                 return WERR_DFS_CANT_CREATE_JUNCT;
 176                         }
 177                 }
 178                 vfs_ChDir(p->conn,p->conn->connectpath);
 179         }
 180
 181         return WERR_OK;
 182 }
 183
 184 static BOOL init_reply_dfs_info_1(struct junction_map* j, NETDFS_DFS_INFO1* dfs1)
 185 {
 186         pstring str;
 187         dfs1->ptr0_path = 1;
 188         slprintf(str, sizeof(pstring)-1, "\\\\%s\\%s\\%s", global_myname(),
 189                 j->service_name, j->volume_name);
 190         DEBUG(5,("init_reply_dfs_info_1: initing entrypath: %s\n",str));
 191         init_unistr2(&dfs1->path,str,UNI_STR_TERMINATE);
 192         return True;
 193 }
 194
 195 static BOOL init_reply_dfs_info_2(struct junction_map* j, NETDFS_DFS_INFO2* dfs2)
 196 {
 197         pstring str;
 198         dfs2->ptr0_path = 1;
 199         slprintf(str, sizeof(pstring)-1, "\\\\%s\\%s\\%s", global_myname(),
 200                 j->service_name, j->volume_name);
 201         init_unistr2(&dfs2->path, str, UNI_STR_TERMINATE);
 202         dfs2->ptr0_comment = 0;
 203         dfs2->state = 1; /* set up state of dfs junction as OK */
 204         dfs2->num_stores = j->referral_count;
 205         return True;
 206 }
 207
 208 static BOOL init_reply_dfs_info_3(TALLOC_CTX *ctx, struct junction_map* j, NETDFS_DFS_INFO3* dfs3)
 209 {
 210         int ii;
 211         pstring str;
 212         dfs3->ptr0_path = 1;
 213         if (j->volume_name[0] == '\0')
 214                 slprintf(str, sizeof(pstring)-1, "\\\\%s\\%s",
 215                         global_myname(), j->service_name);
 216         else
 217                 slprintf(str, sizeof(pstring)-1, "\\\\%s\\%s\\%s", global_myname(),
 218                         j->service_name, j->volume_name);
 219
 220         init_unistr2(&dfs3->path, str, UNI_STR_TERMINATE);
 221         dfs3->ptr0_comment = 1;
 222         init_unistr2(&dfs3->comment, "", UNI_STR_TERMINATE);
 223         dfs3->state = 1;
 224         dfs3->num_stores = dfs3->size_stores = j->referral_count;
 225         dfs3->ptr0_stores = 1;
 226
 227         /* also enumerate the stores */
 228         dfs3->stores = TALLOC_ARRAY(ctx, NETDFS_DFS_STORAGEINFO, j->referral_count);
 229         if (!dfs3->stores)
 230                 return False;
 231
 232         memset(dfs3->stores, '\0', j->referral_count * sizeof(NETDFS_DFS_STORAGEINFO));
 233
 234         for(ii=0;ii<j->referral_count;ii++) {
 235                 char* p;
 236                 pstring path;
 237                 NETDFS_DFS_STORAGEINFO* stor = &(dfs3->stores[ii]);
 238                 struct referral* ref = &(j->referral_list[ii]);
 239
 240                 pstrcpy(path, ref->alternate_path);
 241                 trim_char(path,'\\','\0');
 242                 p = strrchr_m(path,'\\');
 243                 if(p==NULL) {
 244                         DEBUG(4,("init_reply_dfs_info_3: invalid path: no \\ found in %s\n",path));
 245                         continue;
 246                 }
 247                 *p = '\0';
 248                 DEBUG(5,("storage %d: %s.%s\n",ii,path,p+1));
 249                 stor->state = 2; /* set all stores as ONLINE */
 250                 init_unistr2(&stor->server, path, UNI_STR_TERMINATE);
 251                 init_unistr2(&stor->share,  p+1, UNI_STR_TERMINATE);
 252                 stor->ptr0_server = stor->ptr0_share = 1;
 253         }
 254         return True;
 255 }
 256
 257 WERROR _dfs_Enum(pipes_struct *p, NETDFS_Q_DFS_ENUM *q_u, NETDFS_R_DFS_ENUM *r_u)
 258 {
 259         uint32 level = q_u->level;
 260         struct junction_map jn[MAX_MSDFS_JUNCTIONS];
 261         int num_jn = 0;
 262         int i;
 263
 264         num_jn = enum_msdfs_links(p->mem_ctx, jn, ARRAY_SIZE(jn));
 265         vfs_ChDir(p->conn,p->conn->connectpath);
 266
 267         DEBUG(5,("make_reply_dfs_enum: %d junctions found in Dfs, doing level %d\n", num_jn, level));
 268
 269         r_u->ptr0_info = q_u->ptr0_info;
 270         r_u->ptr0_total = q_u->ptr0_total;
 271         r_u->total = num_jn;
 272
 273         r_u->info = q_u->info;
 274
 275         /* Create the return array */
 276         switch (level) {
 277         case 1:
 278                 if ((r_u->info.e.u.info1.s = TALLOC_ARRAY(p->mem_ctx, NETDFS_DFS_INFO1, num_jn)) == NULL) {
 279                         return WERR_NOMEM;
 280                 }
 281                 r_u->info.e.u.info1.count = num_jn;
 282                 r_u->info.e.u.info1.ptr0_s = 1;
 283                 r_u->info.e.u.info1.size_s = num_jn;
 284                 break;
 285         case 2:
 286                 if ((r_u->info.e.u.info2.s = TALLOC_ARRAY(p->mem_ctx, NETDFS_DFS_INFO2, num_jn)) == NULL) {
 287                         return WERR_NOMEM;
 288                 }
 289                 r_u->info.e.u.info2.count = num_jn;
 290                 r_u->info.e.u.info2.ptr0_s = 1;
 291                 r_u->info.e.u.info2.size_s = num_jn;
 292                 break;
 293         case 3:
 294                 if ((r_u->info.e.u.info3.s = TALLOC_ARRAY(p->mem_ctx, NETDFS_DFS_INFO3, num_jn)) == NULL) {
 295                         return WERR_NOMEM;
 296                 }
 297                 r_u->info.e.u.info3.count = num_jn;
 298                 r_u->info.e.u.info3.ptr0_s = 1;
 299                 r_u->info.e.u.info3.size_s = num_jn;
 300                 break;
 301         default:
 302                 return WERR_INVALID_PARAM;
 303         }
 304
 305         for (i = 0; i < num_jn; i++) {
 306                 switch (level) {
 307                 case 1:
 308                         init_reply_dfs_info_1(&jn[i], &r_u->info.e.u.info1.s[i]);
 309                         break;
 310                 case 2:
 311                         init_reply_dfs_info_2(&jn[i], &r_u->info.e.u.info2.s[i]);
 312                         break;
 313                 case 3:
 314                         init_reply_dfs_info_3(p->mem_ctx, &jn[i], &r_u->info.e.u.info3.s[i]);
 315                         break;
 316                 default:
 317                         return WERR_INVALID_PARAM;
 318                 }
 319         }
 320
 321         r_u->status = WERR_OK;
 322
 323         return r_u->status;
 324 }
 325
 326 WERROR _dfs_GetInfo(pipes_struct *p, NETDFS_Q_DFS_GETINFO *q_u,
 327                      NETDFS_R_DFS_GETINFO *r_u)
 328 {
 329         UNISTR2* uni_path = &q_u->path;
 330         uint32 level = q_u->level;
 331         int consumedcnt = sizeof(pstring);
 332         pstring path;
 333         BOOL ret;
 334         struct junction_map jn;
 335
 336         unistr2_to_ascii(path, uni_path, sizeof(path)-1);
 337         if(!create_junction(path, &jn))
 338                 return WERR_DFS_NO_SUCH_SERVER;
 339
 340         /* The following call can change the cwd. */
 341         if(!get_referred_path(p->mem_ctx, path, &jn, &consumedcnt, NULL) || consumedcnt < strlen(path)) {
 342                 vfs_ChDir(p->conn,p->conn->connectpath);
 343                 return WERR_DFS_NO_SUCH_VOL;
 344         }
 345
 346         vfs_ChDir(p->conn,p->conn->connectpath);
 347         r_u->info.switch_value = level;
 348         r_u->info.ptr0 = 1;
 349         r_u->status = WERR_OK;
 350
 351         switch (level) {
 352                 case 1: ret = init_reply_dfs_info_1(&jn, &r_u->info.u.info1); break;
 353                 case 2: ret = init_reply_dfs_info_2(&jn, &r_u->info.u.info2); break;
 354                 case 3: ret = init_reply_dfs_info_3(p->mem_ctx, &jn, &r_u->info.u.info3); break;
 355                 default:
 356                         ret = False;
 357                         break;
 358         }
 359
 360         if (!ret)
 361                 r_u->status = WERR_INVALID_PARAM;
 362
 363         return r_u->status;
 364 }
 365
 366 WERROR _dfs_SetInfo(pipes_struct *p, NETDFS_Q_DFS_SETINFO *q_u, NETDFS_R_DFS_SETINFO *r_u)
 367 {
 368         /* FIXME: Implement your code here */
 369         return WERR_NOT_SUPPORTED;
 370 }
 371
 372 WERROR _dfs_Rename(pipes_struct *p, NETDFS_Q_DFS_RENAME *q_u, NETDFS_R_DFS_RENAME *r_u)
 373 {
 374         /* FIXME: Implement your code here */
 375         return WERR_NOT_SUPPORTED;
 376 }
 377
 378 WERROR _dfs_Move(pipes_struct *p, NETDFS_Q_DFS_MOVE *q_u, NETDFS_R_DFS_MOVE *r_u)
 379 {
 380         /* FIXME: Implement your code here */
 381         return WERR_NOT_SUPPORTED;
 382 }
 383
 384 WERROR _dfs_ManagerGetConfigInfo(pipes_struct *p, NETDFS_Q_DFS_MANAGERGETCONFIGINFO *q_u, NETDFS_R_DFS_MANAGERGETCONFIGINFO *r_u)
 385 {
 386         /* FIXME: Implement your code here */
 387         return WERR_NOT_SUPPORTED;
 388 }
 389
 390 WERROR _dfs_ManagerSendSiteInfo(pipes_struct *p, NETDFS_Q_DFS_MANAGERSENDSITEINFO *q_u, NETDFS_R_DFS_MANAGERSENDSITEINFO *r_u)
 391 {
 392         /* FIXME: Implement your code here */
 393         return WERR_NOT_SUPPORTED;
 394 }
 395
 396 WERROR _dfs_AddFtRoot(pipes_struct *p, NETDFS_Q_DFS_ADDFTROOT *q_u, NETDFS_R_DFS_ADDFTROOT *r_u)
 397 {
 398         /* FIXME: Implement your code here */
 399         return WERR_NOT_SUPPORTED;
 400 }
 401
 402 WERROR _dfs_RemoveFtRoot(pipes_struct *p, NETDFS_Q_DFS_REMOVEFTROOT *q_u, NETDFS_R_DFS_REMOVEFTROOT *r_u)
 403 {
 404         /* FIXME: Implement your code here */
 405         return WERR_NOT_SUPPORTED;
 406 }
 407
 408 WERROR _dfs_AddStdRoot(pipes_struct *p, NETDFS_Q_DFS_ADDSTDROOT *q_u, NETDFS_R_DFS_ADDSTDROOT *r_u)
 409 {
 410         /* FIXME: Implement your code here */
 411         return WERR_NOT_SUPPORTED;
 412 }
 413
 414 WERROR _dfs_RemoveStdRoot(pipes_struct *p, NETDFS_Q_DFS_REMOVESTDROOT *q_u, NETDFS_R_DFS_REMOVESTDROOT *r_u)
 415 {
 416         /* FIXME: Implement your code here */
 417         return WERR_NOT_SUPPORTED;
 418 }
 419
 420 WERROR _dfs_ManagerInitialize(pipes_struct *p, NETDFS_Q_DFS_MANAGERINITIALIZE *q_u, NETDFS_R_DFS_MANAGERINITIALIZE *r_u)
 421 {
 422         /* FIXME: Implement your code here */
 423         return WERR_NOT_SUPPORTED;
 424 }
 425
 426 WERROR _dfs_AddStdRootForced(pipes_struct *p, NETDFS_Q_DFS_ADDSTDROOTFORCED *q_u, NETDFS_R_DFS_ADDSTDROOTFORCED *r_u)
 427 {
 428         /* FIXME: Implement your code here */
 429         return WERR_NOT_SUPPORTED;
 430 }
 431
 432 WERROR _dfs_GetDcAddress(pipes_struct *p, NETDFS_Q_DFS_GETDCADDRESS *q_u, NETDFS_R_DFS_GETDCADDRESS *r_u)
 433 {
 434         /* FIXME: Implement your code here */
 435         return WERR_NOT_SUPPORTED;
 436 }
 437
 438 WERROR _dfs_SetDcAddress(pipes_struct *p, NETDFS_Q_DFS_SETDCADDRESS *q_u, NETDFS_R_DFS_SETDCADDRESS *r_u)
 439 {
 440         /* FIXME: Implement your code here */
 441         return WERR_NOT_SUPPORTED;
 442 }
 443
 444 WERROR _dfs_FlushFtTable(pipes_struct *p, NETDFS_Q_DFS_FLUSHFTTABLE *q_u, NETDFS_R_DFS_FLUSHFTTABLE *r_u)
 445 {
 446         /* FIXME: Implement your code here */
 447         return WERR_NOT_SUPPORTED;
 448 }
 449
 450 WERROR _dfs_Add2(pipes_struct *p, NETDFS_Q_DFS_ADD2 *q_u, NETDFS_R_DFS_ADD2 *r_u)
 451 {
 452         /* FIXME: Implement your code here */
 453         return WERR_NOT_SUPPORTED;
 454 }
 455
 456 WERROR _dfs_Remove2(pipes_struct *p, NETDFS_Q_DFS_REMOVE2 *q_u, NETDFS_R_DFS_REMOVE2 *r_u)
 457 {
 458         /* FIXME: Implement your code here */
 459         return WERR_NOT_SUPPORTED;
 460 }
 461
 462 WERROR _dfs_EnumEx(pipes_struct *p, NETDFS_Q_DFS_ENUMEX *q_u, NETDFS_R_DFS_ENUMEX *r_u)
 463 {
 464         /* FIXME: Implement your code here */
 465         return WERR_NOT_SUPPORTED;
 466 }
 467
 468 WERROR _dfs_SetInfo2(pipes_struct *p, NETDFS_Q_DFS_SETINFO2 *q_u, NETDFS_R_DFS_SETINFO2 *r_u)
 469 {
 470         /* FIXME: Implement your code here */
 471         return WERR_NOT_SUPPORTED;
 472 }
 473