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         uint16_t tid;
  40         uint16_t uid;
  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         tid = SVAL(req->out.hdr, HDR_TID);
  58         uid = SVAL(req->out.hdr, HDR_UID);
  59
  60         clear_flags = ~additional_flags;
  61         clear_flags2 = ~additional_flags2;
  62
  63         timeout_msec = req->transport->options.request_timeout * 1000;
  64
  65         for (s=0; s < parms->in.setup_count; s++) {
  66                 SSVAL(req->out.vwv, VWV(s), parms->in.setup[s]);
  67         }
  68
  69         memcpy(req->out.data,
  70                parms->in.params.data,
  71                parms->in.params.length);
  72         memcpy(req->out.data + parms->in.params.length,
  73                parms->in.data.data,
  74                parms->in.data.length);
  75
  76         if (command == SMBtrans && parms->in.trans_name) {
  77                 pipe_name = parms->in.trans_name;
  78         }
  79
  80         req->subreqs[0] = smb1cli_trans_send(req,
  81                                              req->transport->ev,
  82                                              req->transport->conn,
  83                                              command,
  84                                              additional_flags,
  85                                              clear_flags,
  86                                              additional_flags2,
  87                                              clear_flags2,
  88                                              timeout_msec,
  89                                              pid, tid, uid,
  90                                              pipe_name,
  91                                              0xFFFF, /* fid */
  92                                              0, /* function */
  93                                              parms->in.flags,
  94                                              (uint16_t *)req->out.vwv,
  95                                              parms->in.setup_count,
  96                                              parms->in.max_setup,
  97                                              req->out.data,
  98                                              parms->in.params.length,
  99                                              parms->in.max_param,
 100                                              req->out.data+
 101                                              parms->in.params.length,
 102                                              parms->in.data.length,
 103                                              parms->in.max_data);
 104         if (req->subreqs[0] == NULL) {
 105                 talloc_free(req);
 106                 return NULL;
 107         }
 108         tevent_req_set_callback(req->subreqs[0],
 109                                 smb_raw_trans_backend_done,
 110                                 req);
 111
 112         return req;
 113 }
 114
 115 static void smb_raw_trans_backend_done(struct tevent_req *subreq)
 116 {
 117         struct smbcli_request *req =
 118                 tevent_req_callback_data(subreq,
 119                 struct smbcli_request);
 120         struct smbcli_transport *transport = req->transport;
 121         uint16_t *setup = NULL;
 122         uint8_t num_setup = 0;
 123         uint8_t s;
 124         uint8_t *param = NULL;
 125         uint32_t num_param = 0;
 126         uint8_t *data = NULL;
 127         uint32_t num_data = 0;
 128
 129         req->status = smb1cli_trans_recv(req->subreqs[0], req,
 130                                          &req->flags2,
 131                                          &setup,
 132                                          0, /* min_setup */
 133                                          &num_setup,
 134                                          &param,
 135                                          0, /* min_param */
 136                                          &num_param,
 137                                          &data,
 138                                          0, /* min_data */
 139                                          &num_data);
 140         TALLOC_FREE(req->subreqs[0]);
 141         if (NT_STATUS_IS_ERR(req->status)) {
 142                 req->state = SMBCLI_REQUEST_ERROR;
 143                 transport->error.e.nt_status = req->status;
 144                 transport->error.etype = ETYPE_SMB;
 145                 if (req->async.fn) {
 146                         req->async.fn(req);
 147                 }
 148                 return;
 149         }
 150
 151         req->trans2.out.setup_count = num_setup;
 152         req->trans2.out.setup = talloc_array(req, uint16_t, num_setup);
 153         if (req->trans2.out.setup == NULL) {
 154                 req->state = SMBCLI_REQUEST_ERROR;
 155                 req->status = NT_STATUS_NO_MEMORY;
 156                 transport->error.e.nt_status = req->status;
 157                 transport->error.etype = ETYPE_SMB;
 158                 if (req->async.fn) {
 159                         req->async.fn(req);
 160                 }
 161                 return;
 162         }
 163         for (s = 0; s < num_setup; s++) {
 164                 req->trans2.out.setup[s] = SVAL(setup, VWV(s));
 165         }
 166
 167         req->trans2.out.params.data = param;
 168         req->trans2.out.params.length = num_param;
 169
 170         req->trans2.out.data.data = data;
 171         req->trans2.out.data.length = num_data;
 172
 173         transport->error.e.nt_status = req->status;
 174         if (NT_STATUS_IS_OK(req->status)) {
 175                 transport->error.etype = ETYPE_NONE;
 176         } else {
 177                 transport->error.etype = ETYPE_SMB;
 178         }
 179
 180         req->state = SMBCLI_REQUEST_DONE;
 181         if (req->async.fn) {
 182                 req->async.fn(req);
 183         }
 184 }
 185
 186 static NTSTATUS smb_raw_trans_backend_recv(struct smbcli_request *req,
 187                                            TALLOC_CTX *mem_ctx,
 188                                            struct smb_trans2 *parms)
 189 {
 190         if (!smbcli_request_receive(req) ||
 191             smbcli_request_is_error(req)) {
 192                 goto failed;
 193         }
 194
 195         parms->out = req->trans2.out;
 196         talloc_steal(mem_ctx, parms->out.setup);
 197         talloc_steal(mem_ctx, parms->out.params.data);
 198         talloc_steal(mem_ctx, parms->out.data.data);
 199
 200 failed:
 201         return smbcli_request_destroy(req);
 202 }
 203
 204 _PUBLIC_ struct smbcli_request *smb_raw_trans_send(struct smbcli_tree *tree,
 205                                        struct smb_trans2 *parms)
 206 {
 207         return smb_raw_trans_backend_send(tree, parms, SMBtrans);
 208 }
 209
 210 _PUBLIC_ NTSTATUS smb_raw_trans_recv(struct smbcli_request *req,
 211                              TALLOC_CTX *mem_ctx,
 212                              struct smb_trans2 *parms)
 213 {
 214         return smb_raw_trans_backend_recv(req, mem_ctx, parms);
 215 }
 216
 217 _PUBLIC_ NTSTATUS smb_raw_trans(struct smbcli_tree *tree,
 218                        TALLOC_CTX *mem_ctx,
 219                        struct smb_trans2 *parms)
 220 {
 221         struct smbcli_request *req;
 222         req = smb_raw_trans_send(tree, parms);
 223         if (!req) return NT_STATUS_UNSUCCESSFUL;
 224         return smb_raw_trans_recv(req, mem_ctx, parms);
 225 }
 226
 227 struct smbcli_request *smb_raw_trans2_send(struct smbcli_tree *tree,
 228                                        struct smb_trans2 *parms)
 229 {
 230         return smb_raw_trans_backend_send(tree, parms, SMBtrans2);
 231 }
 232
 233 NTSTATUS smb_raw_trans2_recv(struct smbcli_request *req,
 234                              TALLOC_CTX *mem_ctx,
 235                              struct smb_trans2 *parms)
 236 {
 237         return smb_raw_trans_backend_recv(req, mem_ctx, parms);
 238 }
 239
 240 NTSTATUS smb_raw_trans2(struct smbcli_tree *tree,
 241                         TALLOC_CTX *mem_ctx,
 242                         struct smb_trans2 *parms)
 243 {
 244         struct smbcli_request *req;
 245         req = smb_raw_trans2_send(tree, parms);
 246         if (!req) return NT_STATUS_UNSUCCESSFUL;
 247         return smb_raw_trans2_recv(req, mem_ctx, parms);
 248 }
 249
 250 static void smb_raw_nttrans_done(struct tevent_req *subreq);
 251
 252 struct smbcli_request *smb_raw_nttrans_send(struct smbcli_tree *tree,
 253                                             struct smb_nttrans *parms)
 254 {
 255         struct smbcli_request *req;
 256         uint8_t additional_flags;
 257         uint8_t clear_flags;
 258         uint16_t additional_flags2;
 259         uint16_t clear_flags2;
 260         uint32_t pid;
 261         uint16_t tid;
 262         uint16_t uid;
 263         uint32_t timeout_msec;
 264         uint32_t tmp;
 265
 266         tmp = parms->in.params.length + parms->in.data.length;
 267
 268         req = smbcli_request_setup(tree, SMBnttrans, parms->in.setup_count, tmp);
 269         if (req == NULL) {
 270                 return NULL;
 271         }
 272
 273         additional_flags = CVAL(req->out.hdr, HDR_FLG);
 274         additional_flags2 = SVAL(req->out.hdr, HDR_FLG2);
 275         pid  = SVAL(req->out.hdr, HDR_PID);
 276         pid |= SVAL(req->out.hdr, HDR_PIDHIGH)<<16;
 277         tid = SVAL(req->out.hdr, HDR_TID);
 278         uid = SVAL(req->out.hdr, HDR_UID);
 279
 280         clear_flags = ~additional_flags;
 281         clear_flags2 = ~additional_flags2;
 282
 283         timeout_msec = req->transport->options.request_timeout * 1000;
 284
 285         memcpy(req->out.vwv,
 286                parms->in.setup,
 287                parms->in.setup_count * 2);
 288
 289         memcpy(req->out.data,
 290                parms->in.params.data,
 291                parms->in.params.length);
 292         memcpy(req->out.data + parms->in.params.length,
 293                parms->in.data.data,
 294                parms->in.data.length);
 295
 296         req->subreqs[0] = smb1cli_trans_send(req,
 297                                              req->transport->ev,
 298                                              req->transport->conn,
 299                                              SMBnttrans,
 300                                              additional_flags,
 301                                              clear_flags,
 302                                              additional_flags2,
 303                                              clear_flags2,
 304                                              timeout_msec,
 305                                              pid, tid, uid,
 306                                              NULL, /* pipe_name */
 307                                              0xFFFF, /* fid */
 308                                              parms->in.function,
 309                                              0, /* flags */
 310                                              (uint16_t *)req->out.vwv,
 311                                              parms->in.setup_count,
 312                                              parms->in.max_setup,
 313                                              req->out.data,
 314                                              parms->in.params.length,
 315                                              parms->in.max_param,
 316                                              req->out.data+
 317                                              parms->in.params.length,
 318                                              parms->in.data.length,
 319                                              parms->in.max_data);
 320         if (req->subreqs[0] == NULL) {
 321                 talloc_free(req);
 322                 return NULL;
 323         }
 324         tevent_req_set_callback(req->subreqs[0],
 325                                 smb_raw_nttrans_done,
 326                                 req);
 327
 328         return req;
 329 }
 330
 331 static void smb_raw_nttrans_done(struct tevent_req *subreq)
 332 {
 333         struct smbcli_request *req =
 334                 tevent_req_callback_data(subreq,
 335                 struct smbcli_request);
 336         struct smbcli_transport *transport = req->transport;
 337         uint16_t *setup = NULL;
 338         uint8_t num_setup = 0;
 339         uint8_t *param = NULL;
 340         uint32_t num_param = 0;
 341         uint8_t *data = NULL;
 342         uint32_t num_data = 0;
 343
 344         req->status = smb1cli_trans_recv(req->subreqs[0], req,
 345                                          &req->flags2,
 346                                          &setup,
 347                                          0, /* min_setup */
 348                                          &num_setup,
 349                                          &param,
 350                                          0, /* min_param */
 351                                          &num_param,
 352                                          &data,
 353                                          0, /* min_data */
 354                                          &num_data);
 355         TALLOC_FREE(req->subreqs[0]);
 356         if (NT_STATUS_IS_ERR(req->status)) {
 357                 req->state = SMBCLI_REQUEST_ERROR;
 358                 transport->error.e.nt_status = req->status;
 359                 transport->error.etype = ETYPE_SMB;
 360                 if (req->async.fn) {
 361                         req->async.fn(req);
 362                 }
 363                 return;
 364         }
 365
 366         req->nttrans.out.setup_count = num_setup;
 367         req->nttrans.out.setup = (uint8_t *)setup;
 368
 369         req->nttrans.out.params.data = param;
 370         req->nttrans.out.params.length = num_param;
 371
 372         req->nttrans.out.data.data = data;
 373         req->nttrans.out.data.length = num_data;
 374
 375         transport->error.e.nt_status = req->status;
 376         if (NT_STATUS_IS_OK(req->status)) {
 377                 transport->error.etype = ETYPE_NONE;
 378         } else {
 379                 transport->error.etype = ETYPE_SMB;
 380         }
 381
 382         req->state = SMBCLI_REQUEST_DONE;
 383         if (req->async.fn) {
 384                 req->async.fn(req);
 385         }
 386 }
 387
 388 NTSTATUS smb_raw_nttrans_recv(struct smbcli_request *req,
 389                               TALLOC_CTX *mem_ctx,
 390                               struct smb_nttrans *parms)
 391 {
 392         if (!smbcli_request_receive(req) ||
 393             smbcli_request_is_error(req)) {
 394                 goto failed;
 395         }
 396
 397         parms->out = req->nttrans.out;
 398         talloc_steal(mem_ctx, parms->out.setup);
 399         talloc_steal(mem_ctx, parms->out.params.data);
 400         talloc_steal(mem_ctx, parms->out.data.data);
 401
 402 failed:
 403         return smbcli_request_destroy(req);
 404 }
 405
 406 /****************************************************************************
 407   receive a SMB nttrans response allocating the necessary memory
 408   ****************************************************************************/
 409 NTSTATUS smb_raw_nttrans(struct smbcli_tree *tree,
 410                          TALLOC_CTX *mem_ctx,
 411                          struct smb_nttrans *parms)
 412 {
 413         struct smbcli_request *req;
 414
 415         req = smb_raw_nttrans_send(tree, parms);
 416         if (!req) {
 417                 return NT_STATUS_UNSUCCESSFUL;
 418         }
 419
 420         return smb_raw_nttrans_recv(req, mem_ctx, parms);
 421 }