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         SSVAL(setup + 0, 0, NT_TRANSACT_GET_USER_QUOTA);
 294
 295         SSVAL(params, 0,quota_fnum);
 296         SSVAL(params, 2, op);
 297         SIVAL(params, 4,0x00000000);
 298         SIVAL(params, 8,0x00000000);
 299         SIVAL(params,12,0x00000000);
 300
 301         status = cli_trans(talloc_tos(), cli, SMBnttrans,
 302                            NULL, -1, /* name, fid */
 303                            NT_TRANSACT_GET_USER_QUOTA, 0,
 304                            setup, 1, 0, /* setup */
 305                            params, 16, 4, /* params */
 306                            NULL, 0, 2048, /* data */
 307                            NULL,                /* recv_flags2 */
 308                            NULL, 0, NULL,       /* rsetup */
 309                            &rparam, 0, &rparam_count,
 310                            &rdata, 0, &rdata_count);
 311
 312         /* compat. with smbd + safeguard against
 313          * endless loop
 314          */
 315         if (NT_STATUS_IS_OK(status) && rdata_count == 0) {
 316                 status = NT_STATUS_NO_MORE_ENTRIES;
 317         }
 318
 319         if (!NT_STATUS_IS_OK(status)) {
 320                 goto cleanup;
 321         }
 322
 323         status = parse_user_quota_list(rdata, rdata_count, mem_ctx, pqt_list);
 324
 325 cleanup:
 326         TALLOC_FREE(rparam);
 327         TALLOC_FREE(rdata);
 328
 329         return status;
 330 }
 331
 332 NTSTATUS cli_list_user_quota(struct cli_state *cli,
 333                              int quota_fnum,
 334                              SMB_NTQUOTA_LIST **pqt_list)
 335 {
 336         NTSTATUS status;
 337         TALLOC_CTX *mem_ctx = NULL;
 338         bool first = true;
 339
 340         if (!cli || !pqt_list) {
 341                 smb_panic("cli_list_user_quota() called with NULL Pointer!");
 342         }
 343
 344         *pqt_list = NULL;
 345
 346         if ((mem_ctx = talloc_init("SMB_USER_QUOTA_LIST")) == NULL) {
 347                 return NT_STATUS_NO_MEMORY;
 348         }
 349
 350         do {
 351                 status = cli_list_user_quota_step(cli, mem_ctx, quota_fnum,
 352                                                   pqt_list, first);
 353                 first = false;
 354         } while (NT_STATUS_IS_OK(status));
 355
 356         if (NT_STATUS_EQUAL(status, NT_STATUS_NO_MORE_ENTRIES)) {
 357                 status = NT_STATUS_OK;
 358         }
 359
 360         if (!NT_STATUS_IS_OK(status) || *pqt_list == NULL) {
 361                 TALLOC_FREE(mem_ctx);
 362         }
 363
 364         return status;
 365 }
 366
 367 NTSTATUS cli_get_fs_quota_info(struct cli_state *cli, int quota_fnum,
 368                                SMB_NTQUOTA_STRUCT *pqt)
 369 {
 370         uint16_t setup[1];
 371         uint8_t param[2];
 372         uint8_t *rdata=NULL;
 373         uint32_t rdata_count=0;
 374         SMB_NTQUOTA_STRUCT qt;
 375         NTSTATUS status;
 376
 377         ZERO_STRUCT(qt);
 378
 379         if (!cli||!pqt) {
 380                 smb_panic("cli_get_fs_quota_info() called with NULL Pointer!");
 381         }
 382
 383         SSVAL(setup + 0, 0, TRANSACT2_QFSINFO);
 384
 385         SSVAL(param,0,SMB_FS_QUOTA_INFORMATION);
 386
 387         status = cli_trans(talloc_tos(), cli, SMBtrans2,
 388                            NULL, -1, /* name, fid */
 389                            0, 0,     /* function, flags */
 390                            setup, 1, 0, /* setup */
 391                            param, 2, 0, /* param */
 392                            NULL, 0, 560, /* data */
 393                            NULL,         /* recv_flags2 */
 394                            NULL, 0, NULL, /* rsetup */
 395                            NULL, 0, NULL, /* rparam */
 396                            &rdata, 48, &rdata_count);
 397
 398         if (!NT_STATUS_IS_OK(status)) {
 399                 DEBUG(1, ("SMB_FS_QUOTA_INFORMATION failed: %s\n",
 400                           nt_errstr(status)));
 401                 return status;
 402         }
 403
 404         /* unknown_1 24 NULL bytes in pdata*/
 405
 406         /* the soft quotas 8 bytes (uint64_t)*/
 407         qt.softlim = BVAL(rdata,24);
 408
 409         /* the hard quotas 8 bytes (uint64_t)*/
 410         qt.hardlim = BVAL(rdata,32);
 411
 412         /* quota_flags 2 bytes **/
 413         qt.qflags = SVAL(rdata,40);
 414
 415         qt.qtype = SMB_USER_FS_QUOTA_TYPE;
 416
 417         *pqt = qt;
 418
 419         TALLOC_FREE(rdata);
 420         return status;
 421 }
 422
 423 NTSTATUS cli_set_fs_quota_info(struct cli_state *cli, int quota_fnum,
 424                                SMB_NTQUOTA_STRUCT *pqt)
 425 {
 426         uint16_t setup[1];
 427         uint8_t param[4];
 428         uint8_t data[48];
 429         SMB_NTQUOTA_STRUCT qt;
 430         NTSTATUS status;
 431         ZERO_STRUCT(qt);
 432         memset(data,'\0',48);
 433
 434         if (!cli||!pqt) {
 435                 smb_panic("cli_set_fs_quota_info() called with NULL Pointer!");
 436         }
 437
 438         SSVAL(setup + 0, 0,TRANSACT2_SETFSINFO);
 439
 440         SSVAL(param,0,quota_fnum);
 441         SSVAL(param,2,SMB_FS_QUOTA_INFORMATION);
 442
 443         /* Unknown1 24 NULL bytes*/
 444
 445         /* Default Soft Quota 8 bytes */
 446         SBIG_UINT(data,24,pqt->softlim);
 447
 448         /* Default Hard Quota 8 bytes */
 449         SBIG_UINT(data,32,pqt->hardlim);
 450
 451         /* Quota flag 2 bytes */
 452         SSVAL(data,40,pqt->qflags);
 453
 454         /* Unknown3 6 NULL bytes */
 455
 456         status = cli_trans(talloc_tos(), cli, SMBtrans2,
 457                            NULL, -1, /* name, fid */
 458                            0, 0,     /* function, flags */
 459                            setup, 1, 0, /* setup */
 460                            param, 4, 0, /* param */
 461                            data, 48, 0, /* data */
 462                            NULL,         /* recv_flags2 */
 463                            NULL, 0, NULL, /* rsetup */
 464                            NULL, 0, NULL, /* rparam */
 465                            NULL, 0, NULL); /* rdata */
 466
 467         if (!NT_STATUS_IS_OK(status)) {
 468                 DEBUG(1, ("SMB_FS_QUOTA_INFORMATION failed: %s\n",
 469                           nt_errstr(status)));
 470         }
 471
 472         return status;
 473 }