source4/libcli/raw/rawtrans.c

   1 /*
   2    Unix SMB/CIFS implementation.
   3    raw trans/trans2/nttrans operations
   4
   5    Copyright (C) James Myers 2003 <myersjj@samba.org>
   6
   7    This program is free software; you can redistribute it and/or modify
   8    it under the terms of the GNU General Public License as published by
   9    the Free Software Foundation; either version 3 of the License, or
  10    (at your option) any later version.
  11
  12    This program is distributed in the hope that it will be useful,
  13    but WITHOUT ANY WARRANTY; without even the implied warranty of
  14    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15    GNU General Public License for more details.
  16
  17    You should have received a copy of the GNU General Public License
  18    along with this program.  If not, see <http://www.gnu.org/licenses/>.
  19 */
  20
  21 #include "includes.h"
  22 #include <tevent.h>
  23 #include "libcli/raw/libcliraw.h"
  24 #include "libcli/raw/raw_proto.h"
  25 #include "../libcli/smb/smbXcli_base.h"
  26
  27 static void smb_raw_trans_backend_done(struct tevent_req *subreq);
  28
  29 static struct smbcli_request *smb_raw_trans_backend_send(struct smbcli_tree *tree,
  30                                                          struct smb_trans2 *parms,
  31                                                          uint8_t command)
  32 {
  33         struct smbcli_request *req;
  34         uint8_t additional_flags;
  35         uint8_t clear_flags;
  36         uint16_t additional_flags2;
  37         uint16_t clear_flags2;
  38         uint32_t pid;
  39         struct smbXcli_tcon *tcon = NULL;
  40         struct smbXcli_session *session = NULL;
  41         const char *pipe_name = NULL;
  42         uint8_t s;
  43         uint32_t timeout_msec;
  44         uint32_t tmp;
  45
  46         tmp = parms->in.params.length + parms->in.data.length;
  47
  48         req = smbcli_request_setup(tree, command, parms->in.setup_count, tmp);
  49         if (req == NULL) {
  50                 return NULL;
  51         }
  52
  53         additional_flags = CVAL(req->out.hdr, HDR_FLG);
  54         additional_flags2 = SVAL(req->out.hdr, HDR_FLG2);
  55         pid  = SVAL(req->out.hdr, HDR_PID);
  56         pid |= SVAL(req->out.hdr, HDR_PIDHIGH)<<16;
  57
  58         if (req->session) {
  59                 session = req->session->smbXcli;
  60         }
  61
  62         if (req->tree) {
  63                 tcon = req->tree->smbXcli;
  64         }
  65
  66         clear_flags = ~additional_flags;
  67         clear_flags2 = ~additional_flags2;
  68
  69         timeout_msec = req->transport->options.request_timeout * 1000;
  70
  71         for (s=0; s < parms->in.setup_count; s++) {
  72                 SSVAL(req->out.vwv, VWV(s), parms->in.setup[s]);
  73         }
  74
  75         if (parms->in.params.length > 0) {
  76                 memcpy(req->out.data,
  77                        parms->in.params.data,
  78                        parms->in.params.length);
  79         }
  80         if (parms->in.data.length > 0) {
  81                 memcpy(req->out.data + parms->in.params.length,
  82                        parms->in.data.data,
  83                        parms->in.data.length);
  84         }
  85
  86         if (command == SMBtrans && parms->in.trans_name) {
  87                 pipe_name = parms->in.trans_name;
  88         }
  89
  90         req->subreqs[0] = smb1cli_trans_send(req,
  91                                              req->transport->ev,
  92                                              req->transport->conn,
  93                                              command,
  94                                              additional_flags,
  95                                              clear_flags,
  96                                              additional_flags2,
  97                                              clear_flags2,
  98                                              timeout_msec,
  99                                              pid,
 100                                              tcon,
 101                                              session,
 102                                              pipe_name,
 103                                              0xFFFF, /* fid */
 104                                              0, /* function */
 105                                              parms->in.flags,
 106                                              (uint16_t *)req->out.vwv,
 107                                              parms->in.setup_count,
 108                                              parms->in.max_setup,
 109                                              req->out.data,
 110                                              parms->in.params.length,
 111                                              parms->in.max_param,
 112                                              req->out.data+
 113                                              parms->in.params.length,
 114                                              parms->in.data.length,
 115                                              parms->in.max_data);
 116         if (req->subreqs[0] == NULL) {
 117                 talloc_free(req);
 118                 return NULL;
 119         }
 120         tevent_req_set_callback(req->subreqs[0],
 121                                 smb_raw_trans_backend_done,
 122                                 req);
 123
 124         return req;
 125 }
 126
 127 static void smb_raw_trans_backend_done(struct tevent_req *subreq)
 128 {
 129         struct smbcli_request *req =
 130                 tevent_req_callback_data(subreq,
 131                 struct smbcli_request);
 132         struct smbcli_transport *transport = req->transport;
 133         uint16_t *setup = NULL;
 134         uint8_t num_setup = 0;
 135         uint8_t s;
 136         uint8_t *param = NULL;
 137         uint32_t num_param = 0;
 138         uint8_t *data = NULL;
 139         uint32_t num_data = 0;
 140
 141         req->status = smb1cli_trans_recv(req->subreqs[0], req,
 142                                          &req->flags2,
 143                                          &setup,
 144                                          0, /* min_setup */
 145                                          &num_setup,
 146                                          &param,
 147                                          0, /* min_param */
 148                                          &num_param,
 149                                          &data,
 150                                          0, /* min_data */
 151                                          &num_data);
 152         TALLOC_FREE(req->subreqs[0]);
 153         if (NT_STATUS_IS_ERR(req->status)) {
 154                 req->state = SMBCLI_REQUEST_ERROR;
 155                 transport->error.e.nt_status = req->status;
 156                 transport->error.etype = ETYPE_SMB;
 157                 if (req->async.fn) {
 158                         req->async.fn(req);
 159                 }
 160                 return;
 161         }
 162
 163         req->trans2.out.setup_count = num_setup;
 164         req->trans2.out.setup = talloc_array(req, uint16_t, num_setup);
 165         if (req->trans2.out.setup == NULL) {
 166                 req->state = SMBCLI_REQUEST_ERROR;
 167                 req->status = NT_STATUS_NO_MEMORY;
 168                 transport->error.e.nt_status = req->status;
 169                 transport->error.etype = ETYPE_SMB;
 170                 if (req->async.fn) {
 171                         req->async.fn(req);
 172                 }
 173                 return;
 174         }
 175         for (s = 0; s < num_setup; s++) {
 176                 req->trans2.out.setup[s] = SVAL(setup, VWV(s));
 177         }
 178
 179         req->trans2.out.params.data = param;
 180         req->trans2.out.params.length = num_param;
 181
 182         req->trans2.out.data.data = data;
 183         req->trans2.out.data.length = num_data;
 184
 185         transport->error.e.nt_status = req->status;
 186         if (NT_STATUS_IS_OK(req->status)) {
 187                 transport->error.etype = ETYPE_NONE;
 188         } else {
 189                 transport->error.etype = ETYPE_SMB;
 190         }
 191
 192         req->state = SMBCLI_REQUEST_DONE;
 193         if (req->async.fn) {
 194                 req->async.fn(req);
 195         }
 196 }
 197
 198 static NTSTATUS smb_raw_trans_backend_recv(struct smbcli_request *req,
 199                                            TALLOC_CTX *mem_ctx,
 200                                            struct smb_trans2 *parms)
 201 {
 202         if (!smbcli_request_receive(req) ||
 203             smbcli_request_is_error(req)) {
 204                 goto failed;
 205         }
 206
 207         parms->out = req->trans2.out;
 208         talloc_steal(mem_ctx, parms->out.setup);
 209         talloc_steal(mem_ctx, parms->out.params.data);
 210         talloc_steal(mem_ctx, parms->out.data.data);
 211
 212 failed:
 213         return smbcli_request_destroy(req);
 214 }
 215
 216 _PUBLIC_ struct smbcli_request *smb_raw_trans_send(struct smbcli_tree *tree,
 217                                        struct smb_trans2 *parms)
 218 {
 219         return smb_raw_trans_backend_send(tree, parms, SMBtrans);
 220 }
 221
 222 _PUBLIC_ NTSTATUS smb_raw_trans_recv(struct smbcli_request *req,
 223                              TALLOC_CTX *mem_ctx,
 224                              struct smb_trans2 *parms)
 225 {
 226         return smb_raw_trans_backend_recv(req, mem_ctx, parms);
 227 }
 228
 229 _PUBLIC_ NTSTATUS smb_raw_trans(struct smbcli_tree *tree,
 230                        TALLOC_CTX *mem_ctx,
 231                        struct smb_trans2 *parms)
 232 {
 233         struct smbcli_request *req;
 234         req = smb_raw_trans_send(tree, parms);
 235         if (!req) return NT_STATUS_UNSUCCESSFUL;
 236         return smb_raw_trans_recv(req, mem_ctx, parms);
 237 }
 238
 239 struct smbcli_request *smb_raw_trans2_send(struct smbcli_tree *tree,
 240                                        struct smb_trans2 *parms)
 241 {
 242         return smb_raw_trans_backend_send(tree, parms, SMBtrans2);
 243 }
 244
 245 NTSTATUS smb_raw_trans2_recv(struct smbcli_request *req,
 246                              TALLOC_CTX *mem_ctx,
 247                              struct smb_trans2 *parms)
 248 {
 249         return smb_raw_trans_backend_recv(req, mem_ctx, parms);
 250 }
 251
 252 NTSTATUS smb_raw_trans2(struct smbcli_tree *tree,
 253                         TALLOC_CTX *mem_ctx,
 254                         struct smb_trans2 *parms)
 255 {
 256         struct smbcli_request *req;
 257         req = smb_raw_trans2_send(tree, parms);
 258         if (!req) return NT_STATUS_UNSUCCESSFUL;
 259         return smb_raw_trans2_recv(req, mem_ctx, parms);
 260 }
 261
 262 static void smb_raw_nttrans_done(struct tevent_req *subreq);
 263
 264 struct smbcli_request *smb_raw_nttrans_send(struct smbcli_tree *tree,
 265                                             struct smb_nttrans *parms)
 266 {
 267         struct smbcli_request *req;
 268         uint8_t additional_flags;
 269         uint8_t clear_flags;
 270         uint16_t additional_flags2;
 271         uint16_t clear_flags2;
 272         uint32_t pid;
 273         struct smbXcli_tcon *tcon = NULL;
 274         struct smbXcli_session *session = NULL;
 275         uint32_t timeout_msec;
 276         uint32_t tmp;
 277
 278         tmp = parms->in.params.length + parms->in.data.length;
 279
 280         req = smbcli_request_setup(tree, SMBnttrans, parms->in.setup_count, tmp);
 281         if (req == NULL) {
 282                 return NULL;
 283         }
 284
 285         additional_flags = CVAL(req->out.hdr, HDR_FLG);
 286         additional_flags2 = SVAL(req->out.hdr, HDR_FLG2);
 287         pid  = SVAL(req->out.hdr, HDR_PID);
 288         pid |= SVAL(req->out.hdr, HDR_PIDHIGH)<<16;
 289
 290         if (req->session) {
 291                 session = req->session->smbXcli;
 292         }
 293
 294         if (req->tree) {
 295                 tcon = req->tree->smbXcli;
 296         }
 297
 298         clear_flags = ~additional_flags;
 299         clear_flags2 = ~additional_flags2;
 300
 301         timeout_msec = req->transport->options.request_timeout * 1000;
 302
 303         if (parms->in.setup_count > 0) {
 304                 memcpy(
 305                     req->out.vwv, parms->in.setup, parms->in.setup_count * 2);
 306         }
 307
 308         if (parms->in.params.length > 0) {
 309                 memcpy(req->out.data,
 310                        parms->in.params.data,
 311                        parms->in.params.length);
 312         }
 313         if (parms->in.data.length > 0) {
 314                 memcpy(req->out.data + parms->in.params.length,
 315                        parms->in.data.data,
 316                        parms->in.data.length);
 317         }
 318
 319         req->subreqs[0] = smb1cli_trans_send(req,
 320                                              req->transport->ev,
 321                                              req->transport->conn,
 322                                              SMBnttrans,
 323                                              additional_flags,
 324                                              clear_flags,
 325                                              additional_flags2,
 326                                              clear_flags2,
 327                                              timeout_msec,
 328                                              pid,
 329                                              tcon,
 330                                              session,
 331                                              NULL, /* pipe_name */
 332                                              0xFFFF, /* fid */
 333                                              parms->in.function,
 334                                              0, /* flags */
 335                                              (uint16_t *)req->out.vwv,
 336                                              parms->in.setup_count,
 337                                              parms->in.max_setup,
 338                                              req->out.data,
 339                                              parms->in.params.length,
 340                                              parms->in.max_param,
 341                                              req->out.data+
 342                                              parms->in.params.length,
 343                                              parms->in.data.length,
 344                                              parms->in.max_data);
 345         if (req->subreqs[0] == NULL) {
 346                 talloc_free(req);
 347                 return NULL;
 348         }
 349         tevent_req_set_callback(req->subreqs[0],
 350                                 smb_raw_nttrans_done,
 351                                 req);
 352
 353         return req;
 354 }
 355
 356 static void smb_raw_nttrans_done(struct tevent_req *subreq)
 357 {
 358         struct smbcli_request *req =
 359                 tevent_req_callback_data(subreq,
 360                 struct smbcli_request);
 361         struct smbcli_transport *transport = req->transport;
 362         uint16_t *setup = NULL;
 363         uint8_t num_setup = 0;
 364         uint8_t *param = NULL;
 365         uint32_t num_param = 0;
 366         uint8_t *data = NULL;
 367         uint32_t num_data = 0;
 368
 369         req->status = smb1cli_trans_recv(req->subreqs[0], req,
 370                                          &req->flags2,
 371                                          &setup,
 372                                          0, /* min_setup */
 373                                          &num_setup,
 374                                          &param,
 375                                          0, /* min_param */
 376                                          &num_param,
 377                                          &data,
 378                                          0, /* min_data */
 379                                          &num_data);
 380         TALLOC_FREE(req->subreqs[0]);
 381         if (NT_STATUS_IS_ERR(req->status)) {
 382                 req->state = SMBCLI_REQUEST_ERROR;
 383                 transport->error.e.nt_status = req->status;
 384                 transport->error.etype = ETYPE_SMB;
 385                 if (req->async.fn) {
 386                         req->async.fn(req);
 387                 }
 388                 return;
 389         }
 390
 391         req->nttrans.out.setup_count = num_setup;
 392         req->nttrans.out.setup = (uint8_t *)setup;
 393
 394         req->nttrans.out.params.data = param;
 395         req->nttrans.out.params.length = num_param;
 396
 397         req->nttrans.out.data.data = data;
 398         req->nttrans.out.data.length = num_data;
 399
 400         transport->error.e.nt_status = req->status;
 401         if (NT_STATUS_IS_OK(req->status)) {
 402                 transport->error.etype = ETYPE_NONE;
 403         } else {
 404                 transport->error.etype = ETYPE_SMB;
 405         }
 406
 407         req->state = SMBCLI_REQUEST_DONE;
 408         if (req->async.fn) {
 409                 req->async.fn(req);
 410         }
 411 }
 412
 413 NTSTATUS smb_raw_nttrans_recv(struct smbcli_request *req,
 414                               TALLOC_CTX *mem_ctx,
 415                               struct smb_nttrans *parms)
 416 {
 417         if (!smbcli_request_receive(req) ||
 418             smbcli_request_is_error(req)) {
 419                 goto failed;
 420         }
 421
 422         parms->out = req->nttrans.out;
 423         talloc_steal(mem_ctx, parms->out.setup);
 424         talloc_steal(mem_ctx, parms->out.params.data);
 425         talloc_steal(mem_ctx, parms->out.data.data);
 426
 427 failed:
 428         return smbcli_request_destroy(req);
 429 }
 430
 431 /****************************************************************************
 432   receive a SMB nttrans response allocating the necessary memory
 433   ****************************************************************************/
 434 NTSTATUS smb_raw_nttrans(struct smbcli_tree *tree,
 435                          TALLOC_CTX *mem_ctx,
 436                          struct smb_nttrans *parms)
 437 {
 438         struct smbcli_request *req;
 439
 440         req = smb_raw_nttrans_send(tree, parms);
 441         if (!req) {
 442                 return NT_STATUS_UNSUCCESSFUL;
 443         }
 444
 445         return smb_raw_nttrans_recv(req, mem_ctx, parms);
 446 }