source3/libsmb/cliquota.c

   1 /*
   2    Unix SMB/CIFS implementation.
   3    client quota functions
   4    Copyright (C) Stefan (metze) Metzmacher      2003
   5
   6    This program is free software; you can redistribute it and/or modify
   7    it under the terms of the GNU General Public License as published by
   8    the Free Software Foundation; either version 3 of the License, or
   9    (at your option) any later version.
  10
  11    This program is distributed in the hope that it will be useful,
  12    but WITHOUT ANY WARRANTY; without even the implied warranty of
  13    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14    GNU General Public License for more details.
  15
  16    You should have received a copy of the GNU General Public License
  17    along with this program.  If not, see <http://www.gnu.org/licenses/>.
  18 */
  19
  20 #include "includes.h"
  21 #include "libsmb/libsmb.h"
  22 #include "../librpc/gen_ndr/ndr_security.h"
  23 #include "fake_file.h"
  24 #include "../libcli/security/security.h"
  25 #include "trans2.h"
  26 #include "../libcli/smb/smbXcli_base.h"
  27
  28 NTSTATUS cli_get_quota_handle(struct cli_state *cli, uint16_t *quota_fnum)
  29 {
  30         return cli_ntcreate(cli, FAKE_FILE_NAME_QUOTA_WIN32,
  31                  0x00000016, DESIRED_ACCESS_PIPE,
  32                  0x00000000, FILE_SHARE_READ|FILE_SHARE_WRITE,
  33                  FILE_OPEN, 0x00000000, 0x03, quota_fnum, NULL);
  34 }
  35
  36 void free_ntquota_list(SMB_NTQUOTA_LIST **qt_list)
  37 {
  38         if (!qt_list || !*qt_list) {
  39                 return;
  40         }
  41
  42         if ((*qt_list)->mem_ctx)
  43                 talloc_destroy((*qt_list)->mem_ctx);
  44
  45         (*qt_list) = NULL;
  46
  47         return;
  48 }
  49
  50 bool parse_user_quota_record(const uint8_t *rdata,
  51                              unsigned int rdata_count,
  52                              unsigned int *offset,
  53                              SMB_NTQUOTA_STRUCT *pqt)
  54 {
  55         int sid_len;
  56         SMB_NTQUOTA_STRUCT qt;
  57
  58         ZERO_STRUCT(qt);
  59
  60         if (!rdata||!offset||!pqt) {
  61                 smb_panic("parse_quota_record: called with NULL POINTER!");
  62         }
  63
  64         if (rdata_count < 40) {
  65                 return False;
  66         }
  67
  68         /* offset to next quota record.
  69          * 4 bytes IVAL(rdata,0)
  70          * unused here...
  71          */
  72         *offset = IVAL(rdata,0);
  73
  74         /* sid len */
  75         sid_len = IVAL(rdata,4);
  76         if (40 + sid_len < 40) {
  77                 return false;
  78         }
  79
  80         if (rdata_count < 40+sid_len) {
  81                 return False;
  82         }
  83
  84         if (*offset != 0 && *offset < 40 + sid_len) {
  85                 return false;
  86         }
  87
  88         /* unknown 8 bytes in pdata
  89          * maybe its the change time in NTTIME
  90          */
  91
  92         /* the used space 8 bytes (uint64_t)*/
  93         qt.usedspace = BVAL(rdata,16);
  94
  95         /* the soft quotas 8 bytes (uint64_t)*/
  96         qt.softlim = BVAL(rdata,24);
  97
  98         /* the hard quotas 8 bytes (uint64_t)*/
  99         qt.hardlim = BVAL(rdata,32);
 100
 101         if (!sid_parse(rdata+40,sid_len,&qt.sid)) {
 102                 return false;
 103         }
 104
 105         qt.qtype = SMB_USER_QUOTA_TYPE;
 106
 107         *pqt = qt;
 108
 109         return True;
 110 }
 111
 112 NTSTATUS parse_user_quota_list(const uint8_t *curdata,
 113                                uint32_t curdata_count,
 114                                TALLOC_CTX *mem_ctx,
 115                                SMB_NTQUOTA_LIST **pqt_list)
 116 {
 117         NTSTATUS status = NT_STATUS_OK;
 118         unsigned offset;
 119         SMB_NTQUOTA_STRUCT qt;
 120         SMB_NTQUOTA_LIST *tmp_list_ent;
 121
 122         while (true) {
 123                 ZERO_STRUCT(qt);
 124                 if (!parse_user_quota_record(curdata, curdata_count, &offset,
 125                                              &qt)) {
 126                         DEBUG(1, ("Failed to parse the quota record\n"));
 127                         status = NT_STATUS_INVALID_NETWORK_RESPONSE;
 128                         break;
 129                 }
 130
 131                 if ((tmp_list_ent = talloc_zero(mem_ctx, SMB_NTQUOTA_LIST)) ==
 132                     NULL) {
 133                         status = NT_STATUS_NO_MEMORY;
 134                         break;
 135                 }
 136
 137                 if ((tmp_list_ent->quotas =
 138                          talloc_zero(mem_ctx, SMB_NTQUOTA_STRUCT)) == NULL) {
 139                         status = NT_STATUS_NO_MEMORY;
 140                         break;
 141                 }
 142
 143                 memcpy(tmp_list_ent->quotas, &qt, sizeof(qt));
 144                 tmp_list_ent->mem_ctx = mem_ctx;
 145
 146                 DLIST_ADD((*pqt_list), tmp_list_ent);
 147
 148                 if (offset > curdata_count) {
 149                         DEBUG(1, ("out of bounds offset in quota record\n"));
 150                         status = NT_STATUS_INVALID_NETWORK_RESPONSE;
 151                         break;
 152                 }
 153
 154                 if (curdata + offset < curdata) {
 155                         DEBUG(1, ("Pointer overflow in quota record\n"));
 156                         status = NT_STATUS_INVALID_NETWORK_RESPONSE;
 157                         break;
 158                 }
 159
 160                 curdata += offset;
 161                 curdata_count -= offset;
 162
 163                 if (offset == 0) {
 164                         break;
 165                 }
 166         }
 167
 168         return status;
 169 }
 170
 171 NTSTATUS cli_get_user_quota(struct cli_state *cli, int quota_fnum,
 172                             SMB_NTQUOTA_STRUCT *pqt)
 173 {
 174         uint16_t setup[1];
 175         uint8_t params[16];
 176         unsigned int data_len;
 177         uint8_t data[SID_MAX_SIZE+8];
 178         uint8_t *rparam, *rdata;
 179         uint32_t rparam_count, rdata_count;
 180         unsigned int sid_len;
 181         unsigned int offset;
 182         NTSTATUS status;
 183
 184         if (!cli||!pqt) {
 185                 smb_panic("cli_get_user_quota() called with NULL Pointer!");
 186         }
 187
 188         if (smbXcli_conn_protocol(cli->conn) >= PROTOCOL_SMB2_02) {
 189                 return cli_smb2_get_user_quota(cli, quota_fnum, pqt);
 190         }
 191
 192         SSVAL(setup + 0, 0, NT_TRANSACT_GET_USER_QUOTA);
 193
 194         SSVAL(params, 0,quota_fnum);
 195         SSVAL(params, 2,TRANSACT_GET_USER_QUOTA_FOR_SID);
 196         SIVAL(params, 4,0x00000024);
 197         SIVAL(params, 8,0x00000000);
 198         SIVAL(params,12,0x00000024);
 199
 200         sid_len = ndr_size_dom_sid(&pqt->sid, 0);
 201         data_len = sid_len+8;
 202         SIVAL(data, 0, 0x00000000);
 203         SIVAL(data, 4, sid_len);
 204         sid_linearize(data+8, sid_len, &pqt->sid);
 205
 206         status = cli_trans(talloc_tos(), cli, SMBnttrans,
 207                            NULL, -1, /* name, fid */
 208                            NT_TRANSACT_GET_USER_QUOTA, 0,
 209                            setup, 1, 0, /* setup */
 210                            params, 16, 4, /* params */
 211                            data, data_len, 112, /* data */
 212                            NULL,                /* recv_flags2 */
 213                            NULL, 0, NULL,       /* rsetup */
 214                            &rparam, 4, &rparam_count,
 215                            &rdata, 8, &rdata_count);
 216         if (!NT_STATUS_IS_OK(status)) {
 217                 DEBUG(1, ("NT_TRANSACT_GET_USER_QUOTA failed: %s\n",
 218                           nt_errstr(status)));
 219                 return status;
 220         }
 221
 222         if (!parse_user_quota_record(rdata, rdata_count, &offset, pqt)) {
 223                 status = NT_STATUS_INVALID_NETWORK_RESPONSE;
 224                 DEBUG(0,("Got INVALID NT_TRANSACT_GET_USER_QUOTA reply.\n"));
 225         }
 226
 227         TALLOC_FREE(rparam);
 228         TALLOC_FREE(rdata);
 229         return status;
 230 }
 231
 232 NTSTATUS cli_set_user_quota(struct cli_state *cli, int quota_fnum,
 233                             SMB_NTQUOTA_STRUCT *pqt)
 234 {
 235         uint16_t setup[1];
 236         uint8_t params[2];
 237         uint8_t data[112];
 238         unsigned int sid_len;
 239         NTSTATUS status;
 240
 241         memset(data,'\0',112);
 242
 243         if (!cli||!pqt) {
 244                 smb_panic("cli_set_user_quota() called with NULL Pointer!");
 245         }
 246
 247         SSVAL(setup + 0, 0, NT_TRANSACT_SET_USER_QUOTA);
 248
 249         SSVAL(params,0,quota_fnum);
 250
 251         sid_len = ndr_size_dom_sid(&pqt->sid, 0);
 252         SIVAL(data,0,0);
 253         SIVAL(data,4,sid_len);
 254         SBIG_UINT(data, 8,(uint64_t)0);
 255         SBIG_UINT(data,16,pqt->usedspace);
 256         SBIG_UINT(data,24,pqt->softlim);
 257         SBIG_UINT(data,32,pqt->hardlim);
 258         sid_linearize(data+40, sid_len, &pqt->sid);
 259
 260         status = cli_trans(talloc_tos(), cli, SMBnttrans,
 261                            NULL, -1, /* name, fid */
 262                            NT_TRANSACT_SET_USER_QUOTA, 0,
 263                            setup, 1, 0, /* setup */
 264                            params, 2, 0, /* params */
 265                            data, 112, 0, /* data */
 266                            NULL,                /* recv_flags2 */
 267                            NULL, 0, NULL,       /* rsetup */
 268                            NULL, 0, NULL,       /* rparams */
 269                            NULL, 0, NULL);      /* rdata */
 270
 271         if (!NT_STATUS_IS_OK(status)) {
 272                 DEBUG(1, ("NT_TRANSACT_SET_USER_QUOTA failed: %s\n",
 273                           nt_errstr(status)));
 274         }
 275
 276         return status;
 277 }
 278
 279 static NTSTATUS cli_list_user_quota_step(struct cli_state *cli,
 280                                          TALLOC_CTX *mem_ctx,
 281                                          int quota_fnum,
 282                                          SMB_NTQUOTA_LIST **pqt_list,
 283                                          bool first)
 284 {
 285         uint16_t setup[1];
 286         uint8_t params[16];
 287         uint8_t *rparam=NULL, *rdata=NULL;
 288         uint32_t rparam_count=0, rdata_count=0;
 289         NTSTATUS status;
 290         uint16_t op = first ? TRANSACT_GET_USER_QUOTA_LIST_START
 291                             : TRANSACT_GET_USER_QUOTA_LIST_CONTINUE;
 292
 293         if (smbXcli_conn_protocol(cli->conn) >= PROTOCOL_SMB2_02) {
 294                 return cli_smb2_list_user_quota_step(cli, mem_ctx, quota_fnum,
 295                                                      pqt_list, first);
 296         }
 297
 298         SSVAL(setup + 0, 0, NT_TRANSACT_GET_USER_QUOTA);
 299
 300         SSVAL(params, 0,quota_fnum);
 301         SSVAL(params, 2, op);
 302         SIVAL(params, 4,0x00000000);
 303         SIVAL(params, 8,0x00000000);
 304         SIVAL(params,12,0x00000000);
 305
 306         status = cli_trans(talloc_tos(), cli, SMBnttrans,
 307                            NULL, -1, /* name, fid */
 308                            NT_TRANSACT_GET_USER_QUOTA, 0,
 309                            setup, 1, 0, /* setup */
 310                            params, 16, 4, /* params */
 311                            NULL, 0, 2048, /* data */
 312                            NULL,                /* recv_flags2 */
 313                            NULL, 0, NULL,       /* rsetup */
 314                            &rparam, 0, &rparam_count,
 315                            &rdata, 0, &rdata_count);
 316
 317         /* compat. with smbd + safeguard against
 318          * endless loop
 319          */
 320         if (NT_STATUS_IS_OK(status) && rdata_count == 0) {
 321                 status = NT_STATUS_NO_MORE_ENTRIES;
 322         }
 323
 324         if (!NT_STATUS_IS_OK(status)) {
 325                 goto cleanup;
 326         }
 327
 328         status = parse_user_quota_list(rdata, rdata_count, mem_ctx, pqt_list);
 329
 330 cleanup:
 331         TALLOC_FREE(rparam);
 332         TALLOC_FREE(rdata);
 333
 334         return status;
 335 }
 336
 337 NTSTATUS cli_list_user_quota(struct cli_state *cli,
 338                              int quota_fnum,
 339                              SMB_NTQUOTA_LIST **pqt_list)
 340 {
 341         NTSTATUS status;
 342         TALLOC_CTX *mem_ctx = NULL;
 343         bool first = true;
 344
 345         if (!cli || !pqt_list) {
 346                 smb_panic("cli_list_user_quota() called with NULL Pointer!");
 347         }
 348
 349         *pqt_list = NULL;
 350
 351         if ((mem_ctx = talloc_init("SMB_USER_QUOTA_LIST")) == NULL) {
 352                 return NT_STATUS_NO_MEMORY;
 353         }
 354
 355         do {
 356                 status = cli_list_user_quota_step(cli, mem_ctx, quota_fnum,
 357                                                   pqt_list, first);
 358                 first = false;
 359         } while (NT_STATUS_IS_OK(status));
 360
 361         if (NT_STATUS_EQUAL(status, NT_STATUS_NO_MORE_ENTRIES)) {
 362                 status = NT_STATUS_OK;
 363         }
 364
 365         if (!NT_STATUS_IS_OK(status) || *pqt_list == NULL) {
 366                 TALLOC_FREE(mem_ctx);
 367         }
 368
 369         return status;
 370 }
 371
 372 NTSTATUS cli_get_fs_quota_info(struct cli_state *cli, int quota_fnum,
 373                                SMB_NTQUOTA_STRUCT *pqt)
 374 {
 375         uint16_t setup[1];
 376         uint8_t param[2];
 377         uint8_t *rdata=NULL;
 378         uint32_t rdata_count=0;
 379         SMB_NTQUOTA_STRUCT qt;
 380         NTSTATUS status;
 381
 382         ZERO_STRUCT(qt);
 383
 384         if (!cli||!pqt) {
 385                 smb_panic("cli_get_fs_quota_info() called with NULL Pointer!");
 386         }
 387
 388         SSVAL(setup + 0, 0, TRANSACT2_QFSINFO);
 389
 390         SSVAL(param,0,SMB_FS_QUOTA_INFORMATION);
 391
 392         status = cli_trans(talloc_tos(), cli, SMBtrans2,
 393                            NULL, -1, /* name, fid */
 394                            0, 0,     /* function, flags */
 395                            setup, 1, 0, /* setup */
 396                            param, 2, 0, /* param */
 397                            NULL, 0, 560, /* data */
 398                            NULL,         /* recv_flags2 */
 399                            NULL, 0, NULL, /* rsetup */
 400                            NULL, 0, NULL, /* rparam */
 401                            &rdata, 48, &rdata_count);
 402
 403         if (!NT_STATUS_IS_OK(status)) {
 404                 DEBUG(1, ("SMB_FS_QUOTA_INFORMATION failed: %s\n",
 405                           nt_errstr(status)));
 406                 return status;
 407         }
 408
 409         /* unknown_1 24 NULL bytes in pdata*/
 410
 411         /* the soft quotas 8 bytes (uint64_t)*/
 412         qt.softlim = BVAL(rdata,24);
 413
 414         /* the hard quotas 8 bytes (uint64_t)*/
 415         qt.hardlim = BVAL(rdata,32);
 416
 417         /* quota_flags 2 bytes **/
 418         qt.qflags = SVAL(rdata,40);
 419
 420         qt.qtype = SMB_USER_FS_QUOTA_TYPE;
 421
 422         *pqt = qt;
 423
 424         TALLOC_FREE(rdata);
 425         return status;
 426 }
 427
 428 NTSTATUS cli_set_fs_quota_info(struct cli_state *cli, int quota_fnum,
 429                                SMB_NTQUOTA_STRUCT *pqt)
 430 {
 431         uint16_t setup[1];
 432         uint8_t param[4];
 433         uint8_t data[48];
 434         SMB_NTQUOTA_STRUCT qt;
 435         NTSTATUS status;
 436         ZERO_STRUCT(qt);
 437         memset(data,'\0',48);
 438
 439         if (!cli||!pqt) {
 440                 smb_panic("cli_set_fs_quota_info() called with NULL Pointer!");
 441         }
 442
 443         SSVAL(setup + 0, 0,TRANSACT2_SETFSINFO);
 444
 445         SSVAL(param,0,quota_fnum);
 446         SSVAL(param,2,SMB_FS_QUOTA_INFORMATION);
 447
 448         /* Unknown1 24 NULL bytes*/
 449
 450         /* Default Soft Quota 8 bytes */
 451         SBIG_UINT(data,24,pqt->softlim);
 452
 453         /* Default Hard Quota 8 bytes */
 454         SBIG_UINT(data,32,pqt->hardlim);
 455
 456         /* Quota flag 2 bytes */
 457         SSVAL(data,40,pqt->qflags);
 458
 459         /* Unknown3 6 NULL bytes */
 460
 461         status = cli_trans(talloc_tos(), cli, SMBtrans2,
 462                            NULL, -1, /* name, fid */
 463                            0, 0,     /* function, flags */
 464                            setup, 1, 0, /* setup */
 465                            param, 4, 0, /* param */
 466                            data, 48, 0, /* data */
 467                            NULL,         /* recv_flags2 */
 468                            NULL, 0, NULL, /* rsetup */
 469                            NULL, 0, NULL, /* rparam */
 470                            NULL, 0, NULL); /* rdata */
 471
 472         if (!NT_STATUS_IS_OK(status)) {
 473                 DEBUG(1, ("SMB_FS_QUOTA_INFORMATION failed: %s\n",
 474                           nt_errstr(status)));
 475         }
 476
 477         return status;
 478 }