source3/libsmb/clifsinfo.c

   1 /*
   2    Unix SMB/CIFS implementation.
   3    FS info functions
   4    Copyright (C) Stefan (metze) Metzmacher      2003
   5    Copyright (C) Jeremy Allison 2007
   6    Copyright (C) Andrew Bartlett 2011
   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 3 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, see <http://www.gnu.org/licenses/>.
  20 */
  21
  22 #include "includes.h"
  23 #include "libsmb/libsmb.h"
  24 #include "../lib/util/tevent_ntstatus.h"
  25 #include "async_smb.h"
  26 #include "trans2.h"
  27 #include "auth_generic.h"
  28 #include "auth/gensec/gensec.h"
  29 #include "../libcli/smb/smbXcli_base.h"
  30 #include "auth/credentials/credentials.h"
  31 #include "../librpc/gen_ndr/ndr_security.h"
  32
  33 /****************************************************************************
  34  Get UNIX extensions version info.
  35 ****************************************************************************/
  36
  37 struct cli_unix_extensions_version_state {
  38         struct cli_state *cli;
  39         uint16_t setup[1];
  40         uint8_t param[2];
  41         uint16_t major, minor;
  42         uint32_t caplow, caphigh;
  43 };
  44
  45 static void cli_unix_extensions_version_done(struct tevent_req *subreq);
  46
  47 struct tevent_req *cli_unix_extensions_version_send(TALLOC_CTX *mem_ctx,
  48                                                     struct tevent_context *ev,
  49                                                     struct cli_state *cli)
  50 {
  51         struct tevent_req *req, *subreq;
  52         struct cli_unix_extensions_version_state *state;
  53
  54         req = tevent_req_create(mem_ctx, &state,
  55                                 struct cli_unix_extensions_version_state);
  56         if (req == NULL) {
  57                 return NULL;
  58         }
  59         state->cli = cli;
  60         SSVAL(state->setup, 0, TRANSACT2_QFSINFO);
  61         SSVAL(state->param, 0, SMB_QUERY_CIFS_UNIX_INFO);
  62
  63         subreq = cli_trans_send(state, ev, cli, 0, SMBtrans2,
  64                                 NULL, 0, 0, 0,
  65                                 state->setup, 1, 0,
  66                                 state->param, 2, 0,
  67                                 NULL, 0, 560);
  68         if (tevent_req_nomem(subreq, req)) {
  69                 return tevent_req_post(req, ev);
  70         }
  71         tevent_req_set_callback(subreq, cli_unix_extensions_version_done, req);
  72         return req;
  73 }
  74
  75 static void cli_unix_extensions_version_done(struct tevent_req *subreq)
  76 {
  77         struct tevent_req *req = tevent_req_callback_data(
  78                 subreq, struct tevent_req);
  79         struct cli_unix_extensions_version_state *state = tevent_req_data(
  80                 req, struct cli_unix_extensions_version_state);
  81         uint8_t *data;
  82         uint32_t num_data;
  83         NTSTATUS status;
  84
  85         status = cli_trans_recv(subreq, state, NULL, NULL, 0, NULL,
  86                                 NULL, 0, NULL, &data, 12, &num_data);
  87         TALLOC_FREE(subreq);
  88         if (!NT_STATUS_IS_OK(status)) {
  89                 tevent_req_nterror(req, status);
  90                 return;
  91         }
  92
  93         state->major = SVAL(data, 0);
  94         state->minor = SVAL(data, 2);
  95         state->caplow = IVAL(data, 4);
  96         state->caphigh = IVAL(data, 8);
  97         TALLOC_FREE(data);
  98         tevent_req_done(req);
  99 }
 100
 101 NTSTATUS cli_unix_extensions_version_recv(struct tevent_req *req,
 102                                           uint16_t *pmajor, uint16_t *pminor,
 103                                           uint32_t *pcaplow,
 104                                           uint32_t *pcaphigh)
 105 {
 106         struct cli_unix_extensions_version_state *state = tevent_req_data(
 107                 req, struct cli_unix_extensions_version_state);
 108         NTSTATUS status;
 109
 110         if (tevent_req_is_nterror(req, &status)) {
 111                 return status;
 112         }
 113         *pmajor = state->major;
 114         *pminor = state->minor;
 115         *pcaplow = state->caplow;
 116         *pcaphigh = state->caphigh;
 117         state->cli->server_posix_capabilities = *pcaplow;
 118         return NT_STATUS_OK;
 119 }
 120
 121 NTSTATUS cli_unix_extensions_version(struct cli_state *cli, uint16_t *pmajor,
 122                                      uint16_t *pminor, uint32_t *pcaplow,
 123                                      uint32_t *pcaphigh)
 124 {
 125         TALLOC_CTX *frame = talloc_stackframe();
 126         struct tevent_context *ev;
 127         struct tevent_req *req;
 128         NTSTATUS status = NT_STATUS_OK;
 129
 130         if (smbXcli_conn_has_async_calls(cli->conn)) {
 131                 /*
 132                  * Can't use sync call while an async call is in flight
 133                  */
 134                 status = NT_STATUS_INVALID_PARAMETER;
 135                 goto fail;
 136         }
 137
 138         ev = samba_tevent_context_init(frame);
 139         if (ev == NULL) {
 140                 status = NT_STATUS_NO_MEMORY;
 141                 goto fail;
 142         }
 143
 144         req = cli_unix_extensions_version_send(frame, ev, cli);
 145         if (req == NULL) {
 146                 status = NT_STATUS_NO_MEMORY;
 147                 goto fail;
 148         }
 149
 150         if (!tevent_req_poll_ntstatus(req, ev, &status)) {
 151                 goto fail;
 152         }
 153
 154         status = cli_unix_extensions_version_recv(req, pmajor, pminor, pcaplow,
 155                                                   pcaphigh);
 156  fail:
 157         TALLOC_FREE(frame);
 158         return status;
 159 }
 160
 161 /****************************************************************************
 162  Set UNIX extensions capabilities.
 163 ****************************************************************************/
 164
 165 struct cli_set_unix_extensions_capabilities_state {
 166         struct cli_state *cli;
 167         uint16_t setup[1];
 168         uint8_t param[4];
 169         uint8_t data[12];
 170 };
 171
 172 static void cli_set_unix_extensions_capabilities_done(
 173         struct tevent_req *subreq);
 174
 175 struct tevent_req *cli_set_unix_extensions_capabilities_send(
 176         TALLOC_CTX *mem_ctx, struct tevent_context *ev, struct cli_state *cli,
 177         uint16_t major, uint16_t minor, uint32_t caplow, uint32_t caphigh)
 178 {
 179         struct tevent_req *req, *subreq;
 180         struct cli_set_unix_extensions_capabilities_state *state;
 181
 182         req = tevent_req_create(
 183                 mem_ctx, &state,
 184                 struct cli_set_unix_extensions_capabilities_state);
 185         if (req == NULL) {
 186                 return NULL;
 187         }
 188
 189         state->cli = cli;
 190         SSVAL(state->setup+0, 0, TRANSACT2_SETFSINFO);
 191
 192         SSVAL(state->param, 0, 0);
 193         SSVAL(state->param, 2, SMB_SET_CIFS_UNIX_INFO);
 194
 195         SSVAL(state->data, 0, major);
 196         SSVAL(state->data, 2, minor);
 197         SIVAL(state->data, 4, caplow);
 198         SIVAL(state->data, 8, caphigh);
 199
 200         subreq = cli_trans_send(state, ev, cli, 0, SMBtrans2,
 201                                 NULL, 0, 0, 0,
 202                                 state->setup, 1, 0,
 203                                 state->param, 4, 0,
 204                                 state->data, 12, 560);
 205         if (tevent_req_nomem(subreq, req)) {
 206                 return tevent_req_post(req, ev);
 207         }
 208         tevent_req_set_callback(
 209                 subreq, cli_set_unix_extensions_capabilities_done, req);
 210         return req;
 211 }
 212
 213 static void cli_set_unix_extensions_capabilities_done(
 214         struct tevent_req *subreq)
 215 {
 216         struct tevent_req *req = tevent_req_callback_data(
 217                 subreq, struct tevent_req);
 218         struct cli_set_unix_extensions_capabilities_state *state = tevent_req_data(
 219                 req, struct cli_set_unix_extensions_capabilities_state);
 220
 221         NTSTATUS status = cli_trans_recv(subreq, NULL, NULL, NULL, 0, NULL,
 222                                          NULL, 0, NULL, NULL, 0, NULL);
 223         if (NT_STATUS_IS_OK(status)) {
 224                 state->cli->requested_posix_capabilities = IVAL(state->data, 4);
 225         }
 226         tevent_req_simple_finish_ntstatus(subreq, status);
 227 }
 228
 229 NTSTATUS cli_set_unix_extensions_capabilities_recv(struct tevent_req *req)
 230 {
 231         return tevent_req_simple_recv_ntstatus(req);
 232 }
 233
 234 NTSTATUS cli_set_unix_extensions_capabilities(struct cli_state *cli,
 235                                               uint16_t major, uint16_t minor,
 236                                               uint32_t caplow, uint32_t caphigh)
 237 {
 238         struct tevent_context *ev;
 239         struct tevent_req *req;
 240         NTSTATUS status = NT_STATUS_NO_MEMORY;
 241
 242         if (smbXcli_conn_has_async_calls(cli->conn)) {
 243                 return NT_STATUS_INVALID_PARAMETER;
 244         }
 245         ev = samba_tevent_context_init(talloc_tos());
 246         if (ev == NULL) {
 247                 goto fail;
 248         }
 249         req = cli_set_unix_extensions_capabilities_send(
 250                 ev, ev, cli, major, minor, caplow, caphigh);
 251         if (req == NULL) {
 252                 goto fail;
 253         }
 254         if (!tevent_req_poll_ntstatus(req, ev, &status)) {
 255                 goto fail;
 256         }
 257         status = cli_set_unix_extensions_capabilities_recv(req);
 258 fail:
 259         TALLOC_FREE(ev);
 260         return status;
 261 }
 262
 263 struct cli_get_fs_attr_info_state {
 264         uint16_t setup[1];
 265         uint8_t param[2];
 266         uint32_t fs_attr;
 267 };
 268
 269 static void cli_get_fs_attr_info_done(struct tevent_req *subreq);
 270
 271 struct tevent_req *cli_get_fs_attr_info_send(TALLOC_CTX *mem_ctx,
 272                                              struct tevent_context *ev,
 273                                              struct cli_state *cli)
 274 {
 275         struct tevent_req *subreq, *req;
 276         struct cli_get_fs_attr_info_state *state;
 277
 278         req = tevent_req_create(mem_ctx, &state,
 279                                 struct cli_get_fs_attr_info_state);
 280         if (req == NULL) {
 281                 return NULL;
 282         }
 283         SSVAL(state->setup+0, 0, TRANSACT2_QFSINFO);
 284         SSVAL(state->param+0, 0, SMB_QUERY_FS_ATTRIBUTE_INFO);
 285
 286         subreq = cli_trans_send(state, ev, cli, 0, SMBtrans2,
 287                                 NULL, 0, 0, 0,
 288                                 state->setup, 1, 0,
 289                                 state->param, 2, 0,
 290                                 NULL, 0, 560);
 291         if (tevent_req_nomem(subreq, req)) {
 292                 return tevent_req_post(req, ev);
 293         }
 294         tevent_req_set_callback(subreq, cli_get_fs_attr_info_done, req);
 295         return req;
 296 }
 297
 298 static void cli_get_fs_attr_info_done(struct tevent_req *subreq)
 299 {
 300         struct tevent_req *req = tevent_req_callback_data(
 301                 subreq, struct tevent_req);
 302         struct cli_get_fs_attr_info_state *state = tevent_req_data(
 303                 req, struct cli_get_fs_attr_info_state);
 304         uint8_t *data;
 305         uint32_t num_data;
 306         NTSTATUS status;
 307
 308         status = cli_trans_recv(subreq, talloc_tos(), NULL, NULL, 0, NULL,
 309                                 NULL, 0, NULL, &data, 12, &num_data);
 310         TALLOC_FREE(subreq);
 311         if (!NT_STATUS_IS_OK(status)) {
 312                 tevent_req_nterror(req, status);
 313                 return;
 314         }
 315         state->fs_attr = IVAL(data, 0);
 316         TALLOC_FREE(data);
 317         tevent_req_done(req);
 318 }
 319
 320 NTSTATUS cli_get_fs_attr_info_recv(struct tevent_req *req, uint32_t *fs_attr)
 321 {
 322         struct cli_get_fs_attr_info_state *state = tevent_req_data(
 323                 req, struct cli_get_fs_attr_info_state);
 324         NTSTATUS status;
 325
 326         if (tevent_req_is_nterror(req, &status)) {
 327                 return status;
 328         }
 329         *fs_attr = state->fs_attr;
 330         return NT_STATUS_OK;
 331 }
 332
 333 NTSTATUS cli_get_fs_attr_info(struct cli_state *cli, uint32_t *fs_attr)
 334 {
 335         struct tevent_context *ev;
 336         struct tevent_req *req;
 337         NTSTATUS status = NT_STATUS_NO_MEMORY;
 338
 339         if (smbXcli_conn_protocol(cli->conn) >= PROTOCOL_SMB2_02) {
 340                 return cli_smb2_get_fs_attr_info(cli, fs_attr);
 341         }
 342
 343         if (smbXcli_conn_has_async_calls(cli->conn)) {
 344                 return NT_STATUS_INVALID_PARAMETER;
 345         }
 346         ev = samba_tevent_context_init(talloc_tos());
 347         if (ev == NULL) {
 348                 goto fail;
 349         }
 350         req = cli_get_fs_attr_info_send(ev, ev, cli);
 351         if (req == NULL) {
 352                 goto fail;
 353         }
 354         if (!tevent_req_poll_ntstatus(req, ev, &status)) {
 355                 goto fail;
 356         }
 357         status = cli_get_fs_attr_info_recv(req, fs_attr);
 358 fail:
 359         TALLOC_FREE(ev);
 360         return status;
 361 }
 362
 363 NTSTATUS cli_get_fs_volume_info(struct cli_state *cli,
 364                                 TALLOC_CTX *mem_ctx,
 365                                 char **_volume_name,
 366                                 uint32_t *pserial_number,
 367                                 time_t *pdate)
 368 {
 369         NTSTATUS status;
 370         uint16_t recv_flags2;
 371         uint16_t setup[1];
 372         uint8_t param[2];
 373         uint8_t *rdata;
 374         uint32_t rdata_count;
 375         unsigned int nlen;
 376         char *volume_name = NULL;
 377
 378         SSVAL(setup, 0, TRANSACT2_QFSINFO);
 379         SSVAL(param,0,SMB_QUERY_FS_VOLUME_INFO);
 380
 381         status = cli_trans(talloc_tos(), cli, SMBtrans2,
 382                            NULL, 0, 0, 0,
 383                            setup, 1, 0,
 384                            param, 2, 0,
 385                            NULL, 0, 560,
 386                            &recv_flags2,
 387                            NULL, 0, NULL,
 388                            NULL, 0, NULL,
 389                            &rdata, 18, &rdata_count);
 390         if (!NT_STATUS_IS_OK(status)) {
 391                 return status;
 392         }
 393
 394         if (pdate) {
 395                 struct timespec ts;
 396                 ts = interpret_long_date((char *)rdata);
 397                 *pdate = ts.tv_sec;
 398         }
 399         if (pserial_number) {
 400                 *pserial_number = IVAL(rdata,8);
 401         }
 402         nlen = IVAL(rdata,12);
 403         if (nlen > (rdata_count - 18)) {
 404                 TALLOC_FREE(rdata);
 405                 return NT_STATUS_INVALID_NETWORK_RESPONSE;
 406         }
 407
 408         clistr_pull_talloc(mem_ctx,
 409                            (const char *)rdata,
 410                            recv_flags2,
 411                            &volume_name,
 412                            rdata + 18,
 413                            nlen, STR_UNICODE);
 414         if (volume_name == NULL) {
 415                 status = map_nt_error_from_unix(errno);
 416                 TALLOC_FREE(rdata);
 417                 return status;
 418         }
 419
 420         /* todo: but not yet needed
 421          *       return the other stuff
 422          */
 423
 424         *_volume_name = volume_name;
 425         TALLOC_FREE(rdata);
 426         return NT_STATUS_OK;
 427 }
 428
 429 NTSTATUS cli_get_fs_full_size_info(struct cli_state *cli,
 430                                    uint64_t *total_allocation_units,
 431                                    uint64_t *caller_allocation_units,
 432                                    uint64_t *actual_allocation_units,
 433                                    uint64_t *sectors_per_allocation_unit,
 434                                    uint64_t *bytes_per_sector)
 435 {
 436         uint16_t setup[1];
 437         uint8_t param[2];
 438         uint8_t *rdata = NULL;
 439         uint32_t rdata_count;
 440         NTSTATUS status;
 441
 442         SSVAL(setup, 0, TRANSACT2_QFSINFO);
 443         SSVAL(param, 0, SMB_FS_FULL_SIZE_INFORMATION);
 444
 445         status = cli_trans(talloc_tos(), cli, SMBtrans2,
 446                            NULL, 0, 0, 0,
 447                            setup, 1, 0, /* setup */
 448                            param, 2, 0,  /* param */
 449                            NULL, 0, 560, /* data */
 450                            NULL,
 451                            NULL, 0, NULL, /* rsetup */
 452                            NULL, 0, NULL, /* rparam */
 453                            &rdata, 32, &rdata_count);  /* rdata */
 454         if (!NT_STATUS_IS_OK(status)) {
 455                 goto fail;
 456         }
 457
 458         if (total_allocation_units) {
 459                 *total_allocation_units = BIG_UINT(rdata, 0);
 460         }
 461         if (caller_allocation_units) {
 462                 *caller_allocation_units = BIG_UINT(rdata,8);
 463         }
 464         if (actual_allocation_units) {
 465                 *actual_allocation_units = BIG_UINT(rdata,16);
 466         }
 467         if (sectors_per_allocation_unit) {
 468                 *sectors_per_allocation_unit = IVAL(rdata,24);
 469         }
 470         if (bytes_per_sector) {
 471                 *bytes_per_sector = IVAL(rdata,28);
 472         }
 473
 474 fail:
 475         TALLOC_FREE(rdata);
 476         return status;
 477 }
 478
 479 NTSTATUS cli_get_posix_fs_info(struct cli_state *cli,
 480                                uint32_t *optimal_transfer_size,
 481                                uint32_t *block_size,
 482                                uint64_t *total_blocks,
 483                                uint64_t *blocks_available,
 484                                uint64_t *user_blocks_available,
 485                                uint64_t *total_file_nodes,
 486                                uint64_t *free_file_nodes,
 487                                uint64_t *fs_identifier)
 488 {
 489         uint16_t setup[1];
 490         uint8_t param[2];
 491         uint8_t *rdata = NULL;
 492         uint32_t rdata_count;
 493         NTSTATUS status;
 494
 495         SSVAL(setup, 0, TRANSACT2_QFSINFO);
 496         SSVAL(param,0,SMB_QUERY_POSIX_FS_INFO);
 497
 498         status = cli_trans(talloc_tos(), cli, SMBtrans2, NULL, 0, 0, 0,
 499                            setup, 1, 0,
 500                            param, 2, 0,
 501                            NULL, 0, 560,
 502                            NULL,
 503                            NULL, 0, NULL, /* rsetup */
 504                            NULL, 0, NULL, /* rparam */
 505                            &rdata, 56, &rdata_count);
 506         if (!NT_STATUS_IS_OK(status)) {
 507                 return status;
 508         }
 509
 510         if (optimal_transfer_size) {
 511                 *optimal_transfer_size = IVAL(rdata, 0);
 512         }
 513         if (block_size) {
 514                 *block_size = IVAL(rdata,4);
 515         }
 516         if (total_blocks) {
 517                 *total_blocks = BIG_UINT(rdata,8);
 518         }
 519         if (blocks_available) {
 520                 *blocks_available = BIG_UINT(rdata,16);
 521         }
 522         if (user_blocks_available) {
 523                 *user_blocks_available = BIG_UINT(rdata,24);
 524         }
 525         if (total_file_nodes) {
 526                 *total_file_nodes = BIG_UINT(rdata,32);
 527         }
 528         if (free_file_nodes) {
 529                 *free_file_nodes = BIG_UINT(rdata,40);
 530         }
 531         if (fs_identifier) {
 532                 *fs_identifier = BIG_UINT(rdata,48);
 533         }
 534         return NT_STATUS_OK;
 535 }
 536
 537 /****************************************************************************
 538  Do a UNIX extensions SMB_QUERY_POSIX_WHOAMI call.
 539 ****************************************************************************/
 540
 541 struct posix_whoami_state {
 542         uint16_t setup[1];
 543         uint8_t param[2];
 544         uint32_t max_rdata;
 545         bool guest;
 546         uint64_t uid;
 547         uint64_t gid;
 548         uint32_t num_gids;
 549         uint64_t *gids;
 550         uint32_t num_sids;
 551         struct dom_sid *sids;
 552 };
 553
 554 static void cli_posix_whoami_done(struct tevent_req *subreq);
 555
 556 struct tevent_req *cli_posix_whoami_send(TALLOC_CTX *mem_ctx,
 557                                         struct tevent_context *ev,
 558                                         struct cli_state *cli)
 559 {
 560         struct tevent_req *req = NULL, *subreq = NULL;
 561         struct posix_whoami_state *state = NULL;
 562
 563         req = tevent_req_create(mem_ctx, &state, struct posix_whoami_state);
 564         if (req == NULL) {
 565                 return NULL;
 566         }
 567
 568         /* Setup setup word. */
 569         SSVAL(state->setup, 0, TRANSACT2_QFSINFO);
 570         SSVAL(state->param, 0, SMB_QUERY_POSIX_WHOAMI);
 571
 572         state->max_rdata = 62*1024;
 573
 574         subreq = cli_trans_send(state,                  /* mem ctx. */
 575                                 ev,                     /* event ctx. */
 576                                 cli,                    /* cli_state. */
 577                                 0,                      /* additional_flags2 */
 578                                 SMBtrans2,              /* cmd. */
 579                                 NULL,                   /* pipe name. */
 580                                 -1,                     /* fid. */
 581                                 0,                      /* function. */
 582                                 0,                      /* flags. */
 583                                 state->setup,           /* setup. */
 584                                 1,                      /* num setup uint16_t words. */
 585                                 0,                      /* max returned setup. */
 586                                 state->param,           /* param. */
 587                                 2,                      /* num param. */
 588                                 0,                      /* max returned param. */
 589                                 NULL,                   /* data. */
 590                                 0,                      /* num data. */
 591                                 state->max_rdata);      /* max returned data. */
 592
 593         if (tevent_req_nomem(subreq, req)) {
 594                 return tevent_req_post(req, ev);
 595         }
 596         tevent_req_set_callback(subreq, cli_posix_whoami_done, req);
 597         return req;
 598 }
 599
 600 static void cli_posix_whoami_done(struct tevent_req *subreq)
 601 {
 602         struct tevent_req *req = tevent_req_callback_data(
 603                         subreq, struct tevent_req);
 604         struct posix_whoami_state *state = tevent_req_data(
 605                         req, struct posix_whoami_state);
 606         uint8_t *rdata = NULL;
 607         uint8_t *p = NULL;
 608         uint32_t num_rdata = 0;
 609         uint32_t i;
 610         NTSTATUS status;
 611
 612         status = cli_trans_recv(subreq,
 613                                 state,
 614                                 NULL,
 615                                 NULL,
 616                                 0,
 617                                 NULL,
 618                                 NULL,
 619                                 0,
 620                                 NULL,
 621                                 &rdata,
 622                                 40,
 623                                 &num_rdata);
 624         TALLOC_FREE(subreq);
 625         if (tevent_req_nterror(req, status)) {
 626                 return;
 627         }
 628
 629         /*
 630          * Not strictly needed - cli_trans_recv()
 631          * will ensure at least 40 bytes here. Added
 632          * as more of a reminder to be careful when
 633          * parsing network packets in C.
 634          */
 635
 636         if (num_rdata < 40 || rdata + num_rdata < rdata) {
 637                 tevent_req_nterror(req, NT_STATUS_INVALID_NETWORK_RESPONSE);
 638                 return;
 639         }
 640
 641         state->guest = (IVAL(rdata, 0) & SMB_WHOAMI_GUEST);
 642         state->uid = BVAL(rdata, 8);
 643         state->gid = BVAL(rdata, 16);
 644         state->num_gids = IVAL(rdata, 24);
 645         state->num_sids = IVAL(rdata, 28);
 646
 647         state->gids = talloc_array(state, uint64_t, state->num_gids);
 648         if (tevent_req_nomem(state->gids, req)) {
 649                 return;
 650         }
 651         state->sids = talloc_array(state, struct dom_sid, state->num_sids);
 652         if (tevent_req_nomem(state->sids, req)) {
 653                 return;
 654         }
 655
 656         p = rdata + 40;
 657
 658         for (i = 0; i < state->num_gids; i++) {
 659                 if (p + 8 > rdata + num_rdata) {
 660                         tevent_req_nterror(req,
 661                                 NT_STATUS_INVALID_NETWORK_RESPONSE);
 662                         return;
 663                 }
 664                 state->gids[i] = BVAL(p, 0);
 665                 p += 8;
 666         }
 667
 668         num_rdata -= (p - rdata);
 669
 670         for (i = 0; i < state->num_sids; i++) {
 671                 size_t sid_size;
 672                 DATA_BLOB in = data_blob_const(p, num_rdata);
 673                 enum ndr_err_code ndr_err;
 674
 675                 ndr_err = ndr_pull_struct_blob(&in,
 676                                 state,
 677                                 &state->sids[i],
 678                                 (ndr_pull_flags_fn_t)ndr_pull_dom_sid);
 679                 if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
 680                         tevent_req_nterror(req,
 681                                 NT_STATUS_INVALID_NETWORK_RESPONSE);
 682                         return;
 683                 }
 684
 685                 sid_size = ndr_size_dom_sid(&state->sids[i], 0);
 686
 687                 if (sid_size > num_rdata) {
 688                         tevent_req_nterror(req,
 689                                 NT_STATUS_INVALID_NETWORK_RESPONSE);
 690                         return;
 691                 }
 692
 693                 p += sid_size;
 694                 num_rdata -= sid_size;
 695         }
 696         tevent_req_done(req);
 697 }
 698
 699 NTSTATUS cli_posix_whoami_recv(struct tevent_req *req,
 700                         TALLOC_CTX *mem_ctx,
 701                         uint64_t *puid,
 702                         uint64_t *pgid,
 703                         uint32_t *pnum_gids,
 704                         uint64_t **pgids,
 705                         uint32_t *pnum_sids,
 706                         struct dom_sid **psids,
 707                         bool *pguest)
 708 {
 709         NTSTATUS status;
 710         struct posix_whoami_state *state = tevent_req_data(
 711                         req, struct posix_whoami_state);
 712
 713         if (tevent_req_is_nterror(req, &status)) {
 714                 return status;
 715         }
 716
 717         if (puid) {
 718                 *puid = state->uid;
 719         }
 720         if (pgid) {
 721                 *pgid = state->gid;
 722         }
 723         if (pnum_gids) {
 724                 *pnum_gids = state->num_gids;
 725         }
 726         if (pgids) {
 727                 *pgids = talloc_move(mem_ctx, &state->gids);
 728         }
 729         if (pnum_sids) {
 730                 *pnum_sids = state->num_sids;
 731         }
 732         if (psids) {
 733                 *psids = talloc_move(mem_ctx, &state->sids);
 734         }
 735         if (pguest) {
 736                 *pguest = state->guest;
 737         }
 738         return NT_STATUS_OK;
 739 }
 740
 741 NTSTATUS cli_posix_whoami(struct cli_state *cli,
 742                         TALLOC_CTX *mem_ctx,
 743                         uint64_t *puid,
 744                         uint64_t *pgid,
 745                         uint32_t *num_gids,
 746                         uint64_t **gids,
 747                         uint32_t *num_sids,
 748                         struct dom_sid **sids,
 749                         bool *pguest)
 750 {
 751         TALLOC_CTX *frame = talloc_stackframe();
 752         struct tevent_context *ev = NULL;
 753         struct tevent_req *req = NULL;
 754         NTSTATUS status = NT_STATUS_OK;
 755
 756         if (smbXcli_conn_has_async_calls(cli->conn)) {
 757                 /*
 758                  * Can't use sync call while an async call is in flight
 759                  */
 760                 status = NT_STATUS_INVALID_PARAMETER;
 761                 goto fail;
 762         }
 763
 764         ev = samba_tevent_context_init(frame);
 765         if (ev == NULL) {
 766                 status = NT_STATUS_NO_MEMORY;
 767                 goto fail;
 768         }
 769
 770         req = cli_posix_whoami_send(frame,
 771                                 ev,
 772                                 cli);
 773         if (req == NULL) {
 774                 status = NT_STATUS_NO_MEMORY;
 775                 goto fail;
 776         }
 777
 778         if (!tevent_req_poll_ntstatus(req, ev, &status)) {
 779                 goto fail;
 780         }
 781
 782         status = cli_posix_whoami_recv(req,
 783                         mem_ctx,
 784                         puid,
 785                         pgid,
 786                         num_gids,
 787                         gids,
 788                         num_sids,
 789                         sids,
 790                         pguest);
 791
 792  fail:
 793         TALLOC_FREE(frame);
 794         return status;
 795 }