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         memcpy(req->out.data,
  76                parms->in.params.data,
  77                parms->in.params.length);
  78         memcpy(req->out.data + parms->in.params.length,
  79                parms->in.data.data,
  80                parms->in.data.length);
  81
  82         if (command == SMBtrans && parms->in.trans_name) {
  83                 pipe_name = parms->in.trans_name;
  84         }
  85
  86         req->subreqs[0] = smb1cli_trans_send(req,
  87                                              req->transport->ev,
  88                                              req->transport->conn,
  89                                              command,
  90                                              additional_flags,
  91                                              clear_flags,
  92                                              additional_flags2,
  93                                              clear_flags2,
  94                                              timeout_msec,
  95                                              pid,
  96                                              tcon,
  97                                              session,
  98                                              pipe_name,
  99                                              0xFFFF, /* fid */
 100                                              0, /* function */
 101                                              parms->in.flags,
 102                                              (uint16_t *)req->out.vwv,
 103                                              parms->in.setup_count,
 104                                              parms->in.max_setup,
 105                                              req->out.data,
 106                                              parms->in.params.length,
 107                                              parms->in.max_param,
 108                                              req->out.data+
 109                                              parms->in.params.length,
 110                                              parms->in.data.length,
 111                                              parms->in.max_data);
 112         if (req->subreqs[0] == NULL) {
 113                 talloc_free(req);
 114                 return NULL;
 115         }
 116         tevent_req_set_callback(req->subreqs[0],
 117                                 smb_raw_trans_backend_done,
 118                                 req);
 119
 120         return req;
 121 }
 122
 123 static void smb_raw_trans_backend_done(struct tevent_req *subreq)
 124 {
 125         struct smbcli_request *req =
 126                 tevent_req_callback_data(subreq,
 127                 struct smbcli_request);
 128         struct smbcli_transport *transport = req->transport;
 129         uint16_t *setup = NULL;
 130         uint8_t num_setup = 0;
 131         uint8_t s;
 132         uint8_t *param = NULL;
 133         uint32_t num_param = 0;
 134         uint8_t *data = NULL;
 135         uint32_t num_data = 0;
 136
 137         req->status = smb1cli_trans_recv(req->subreqs[0], req,
 138                                          &req->flags2,
 139                                          &setup,
 140                                          0, /* min_setup */
 141                                          &num_setup,
 142                                          &param,
 143                                          0, /* min_param */
 144                                          &num_param,
 145                                          &data,
 146                                          0, /* min_data */
 147                                          &num_data);
 148         TALLOC_FREE(req->subreqs[0]);
 149         if (NT_STATUS_IS_ERR(req->status)) {
 150                 req->state = SMBCLI_REQUEST_ERROR;
 151                 transport->error.e.nt_status = req->status;
 152                 transport->error.etype = ETYPE_SMB;
 153                 if (req->async.fn) {
 154                         req->async.fn(req);
 155                 }
 156                 return;
 157         }
 158
 159         req->trans2.out.setup_count = num_setup;
 160         req->trans2.out.setup = talloc_array(req, uint16_t, num_setup);
 161         if (req->trans2.out.setup == NULL) {
 162                 req->state = SMBCLI_REQUEST_ERROR;
 163                 req->status = NT_STATUS_NO_MEMORY;
 164                 transport->error.e.nt_status = req->status;
 165                 transport->error.etype = ETYPE_SMB;
 166                 if (req->async.fn) {
 167                         req->async.fn(req);
 168                 }
 169                 return;
 170         }
 171         for (s = 0; s < num_setup; s++) {
 172                 req->trans2.out.setup[s] = SVAL(setup, VWV(s));
 173         }
 174
 175         req->trans2.out.params.data = param;
 176         req->trans2.out.params.length = num_param;
 177
 178         req->trans2.out.data.data = data;
 179         req->trans2.out.data.length = num_data;
 180
 181         transport->error.e.nt_status = req->status;
 182         if (NT_STATUS_IS_OK(req->status)) {
 183                 transport->error.etype = ETYPE_NONE;
 184         } else {
 185                 transport->error.etype = ETYPE_SMB;
 186         }
 187
 188         req->state = SMBCLI_REQUEST_DONE;
 189         if (req->async.fn) {
 190                 req->async.fn(req);
 191         }
 192 }
 193
 194 static NTSTATUS smb_raw_trans_backend_recv(struct smbcli_request *req,
 195                                            TALLOC_CTX *mem_ctx,
 196                                            struct smb_trans2 *parms)
 197 {
 198         if (!smbcli_request_receive(req) ||
 199             smbcli_request_is_error(req)) {
 200                 goto failed;
 201         }
 202
 203         parms->out = req->trans2.out;
 204         talloc_steal(mem_ctx, parms->out.setup);
 205         talloc_steal(mem_ctx, parms->out.params.data);
 206         talloc_steal(mem_ctx, parms->out.data.data);
 207
 208 failed:
 209         return smbcli_request_destroy(req);
 210 }
 211
 212 _PUBLIC_ struct smbcli_request *smb_raw_trans_send(struct smbcli_tree *tree,
 213                                        struct smb_trans2 *parms)
 214 {
 215         return smb_raw_trans_backend_send(tree, parms, SMBtrans);
 216 }
 217
 218 _PUBLIC_ NTSTATUS smb_raw_trans_recv(struct smbcli_request *req,
 219                              TALLOC_CTX *mem_ctx,
 220                              struct smb_trans2 *parms)
 221 {
 222         return smb_raw_trans_backend_recv(req, mem_ctx, parms);
 223 }
 224
 225 _PUBLIC_ NTSTATUS smb_raw_trans(struct smbcli_tree *tree,
 226                        TALLOC_CTX *mem_ctx,
 227                        struct smb_trans2 *parms)
 228 {
 229         struct smbcli_request *req;
 230         req = smb_raw_trans_send(tree, parms);
 231         if (!req) return NT_STATUS_UNSUCCESSFUL;
 232         return smb_raw_trans_recv(req, mem_ctx, parms);
 233 }
 234
 235 struct smbcli_request *smb_raw_trans2_send(struct smbcli_tree *tree,
 236                                        struct smb_trans2 *parms)
 237 {
 238         return smb_raw_trans_backend_send(tree, parms, SMBtrans2);
 239 }
 240
 241 NTSTATUS smb_raw_trans2_recv(struct smbcli_request *req,
 242                              TALLOC_CTX *mem_ctx,
 243                              struct smb_trans2 *parms)
 244 {
 245         return smb_raw_trans_backend_recv(req, mem_ctx, parms);
 246 }
 247
 248 NTSTATUS smb_raw_trans2(struct smbcli_tree *tree,
 249                         TALLOC_CTX *mem_ctx,
 250                         struct smb_trans2 *parms)
 251 {
 252         struct smbcli_request *req;
 253         req = smb_raw_trans2_send(tree, parms);
 254         if (!req) return NT_STATUS_UNSUCCESSFUL;
 255         return smb_raw_trans2_recv(req, mem_ctx, parms);
 256 }
 257
 258 static void smb_raw_nttrans_done(struct tevent_req *subreq);
 259
 260 struct smbcli_request *smb_raw_nttrans_send(struct smbcli_tree *tree,
 261                                             struct smb_nttrans *parms)
 262 {
 263         struct smbcli_request *req;
 264         uint8_t additional_flags;
 265         uint8_t clear_flags;
 266         uint16_t additional_flags2;
 267         uint16_t clear_flags2;
 268         uint32_t pid;
 269         struct smbXcli_tcon *tcon = NULL;
 270         struct smbXcli_session *session = NULL;
 271         uint32_t timeout_msec;
 272         uint32_t tmp;
 273
 274         tmp = parms->in.params.length + parms->in.data.length;
 275
 276         req = smbcli_request_setup(tree, SMBnttrans, parms->in.setup_count, tmp);
 277         if (req == NULL) {
 278                 return NULL;
 279         }
 280
 281         additional_flags = CVAL(req->out.hdr, HDR_FLG);
 282         additional_flags2 = SVAL(req->out.hdr, HDR_FLG2);
 283         pid  = SVAL(req->out.hdr, HDR_PID);
 284         pid |= SVAL(req->out.hdr, HDR_PIDHIGH)<<16;
 285
 286         if (req->session) {
 287                 session = req->session->smbXcli;
 288         }
 289
 290         if (req->tree) {
 291                 tcon = req->tree->smbXcli;
 292         }
 293
 294         clear_flags = ~additional_flags;
 295         clear_flags2 = ~additional_flags2;
 296
 297         timeout_msec = req->transport->options.request_timeout * 1000;
 298
 299         memcpy(req->out.vwv,
 300                parms->in.setup,
 301                parms->in.setup_count * 2);
 302
 303         memcpy(req->out.data,
 304                parms->in.params.data,
 305                parms->in.params.length);
 306         memcpy(req->out.data + parms->in.params.length,
 307                parms->in.data.data,
 308                parms->in.data.length);
 309
 310         req->subreqs[0] = smb1cli_trans_send(req,
 311                                              req->transport->ev,
 312                                              req->transport->conn,
 313                                              SMBnttrans,
 314                                              additional_flags,
 315                                              clear_flags,
 316                                              additional_flags2,
 317                                              clear_flags2,
 318                                              timeout_msec,
 319                                              pid,
 320                                              tcon,
 321                                              session,
 322                                              NULL, /* pipe_name */
 323                                              0xFFFF, /* fid */
 324                                              parms->in.function,
 325                                              0, /* flags */
 326                                              (uint16_t *)req->out.vwv,
 327                                              parms->in.setup_count,
 328                                              parms->in.max_setup,
 329                                              req->out.data,
 330                                              parms->in.params.length,
 331                                              parms->in.max_param,
 332                                              req->out.data+
 333                                              parms->in.params.length,
 334                                              parms->in.data.length,
 335                                              parms->in.max_data);
 336         if (req->subreqs[0] == NULL) {
 337                 talloc_free(req);
 338                 return NULL;
 339         }
 340         tevent_req_set_callback(req->subreqs[0],
 341                                 smb_raw_nttrans_done,
 342                                 req);
 343
 344         return req;
 345 }
 346
 347 static void smb_raw_nttrans_done(struct tevent_req *subreq)
 348 {
 349         struct smbcli_request *req =
 350                 tevent_req_callback_data(subreq,
 351                 struct smbcli_request);
 352         struct smbcli_transport *transport = req->transport;
 353         uint16_t *setup = NULL;
 354         uint8_t num_setup = 0;
 355         uint8_t *param = NULL;
 356         uint32_t num_param = 0;
 357         uint8_t *data = NULL;
 358         uint32_t num_data = 0;
 359
 360         req->status = smb1cli_trans_recv(req->subreqs[0], req,
 361                                          &req->flags2,
 362                                          &setup,
 363                                          0, /* min_setup */
 364                                          &num_setup,
 365                                          &param,
 366                                          0, /* min_param */
 367                                          &num_param,
 368                                          &data,
 369                                          0, /* min_data */
 370                                          &num_data);
 371         TALLOC_FREE(req->subreqs[0]);
 372         if (NT_STATUS_IS_ERR(req->status)) {
 373                 req->state = SMBCLI_REQUEST_ERROR;
 374                 transport->error.e.nt_status = req->status;
 375                 transport->error.etype = ETYPE_SMB;
 376                 if (req->async.fn) {
 377                         req->async.fn(req);
 378                 }
 379                 return;
 380         }
 381
 382         req->nttrans.out.setup_count = num_setup;
 383         req->nttrans.out.setup = (uint8_t *)setup;
 384
 385         req->nttrans.out.params.data = param;
 386         req->nttrans.out.params.length = num_param;
 387
 388         req->nttrans.out.data.data = data;
 389         req->nttrans.out.data.length = num_data;
 390
 391         transport->error.e.nt_status = req->status;
 392         if (NT_STATUS_IS_OK(req->status)) {
 393                 transport->error.etype = ETYPE_NONE;
 394         } else {
 395                 transport->error.etype = ETYPE_SMB;
 396         }
 397
 398         req->state = SMBCLI_REQUEST_DONE;
 399         if (req->async.fn) {
 400                 req->async.fn(req);
 401         }
 402 }
 403
 404 NTSTATUS smb_raw_nttrans_recv(struct smbcli_request *req,
 405                               TALLOC_CTX *mem_ctx,
 406                               struct smb_nttrans *parms)
 407 {
 408         if (!smbcli_request_receive(req) ||
 409             smbcli_request_is_error(req)) {
 410                 goto failed;
 411         }
 412
 413         parms->out = req->nttrans.out;
 414         talloc_steal(mem_ctx, parms->out.setup);
 415         talloc_steal(mem_ctx, parms->out.params.data);
 416         talloc_steal(mem_ctx, parms->out.data.data);
 417
 418 failed:
 419         return smbcli_request_destroy(req);
 420 }
 421
 422 /****************************************************************************
 423   receive a SMB nttrans response allocating the necessary memory
 424   ****************************************************************************/
 425 NTSTATUS smb_raw_nttrans(struct smbcli_tree *tree,
 426                          TALLOC_CTX *mem_ctx,
 427                          struct smb_nttrans *parms)
 428 {
 429         struct smbcli_request *req;
 430
 431         req = smb_raw_nttrans_send(tree, parms);
 432         if (!req) {
 433                 return NT_STATUS_UNSUCCESSFUL;
 434         }
 435
 436         return smb_raw_nttrans_recv(req, mem_ctx, parms);
 437 }