source3/smbd/smb2_glue.c

   1 /*
   2    Unix SMB/CIFS implementation.
   3    Core SMB2 server
   4
   5    Copyright (C) Stefan Metzmacher 2009
   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 "smbd/smbd.h"
  23 #include "smbd/globals.h"
  24 #include "../libcli/smb/smb_common.h"
  25
  26 struct smb_request *smbd_smb2_fake_smb_request(struct smbd_smb2_request *req)
  27 {
  28         struct smb_request *smbreq;
  29         const uint8_t *inhdr;
  30         int i = req->current_idx;
  31
  32         inhdr = (const uint8_t *)req->in.vector[i+0].iov_base;
  33
  34         smbreq = talloc_zero(req, struct smb_request);
  35         if (smbreq == NULL) {
  36                 return NULL;
  37         }
  38
  39         smbreq->vuid = req->session->compat_vuser->vuid;
  40         smbreq->tid = req->tcon->compat_conn->cnum;
  41         smbreq->conn = req->tcon->compat_conn;
  42         smbreq->sconn = req->sconn;
  43         smbreq->smbpid = (uint16_t)IVAL(inhdr, SMB2_HDR_PID);
  44         smbreq->flags2 = FLAGS2_UNICODE_STRINGS |
  45                          FLAGS2_32_BIT_ERROR_CODES |
  46                          FLAGS2_LONG_PATH_COMPONENTS |
  47                          FLAGS2_IS_LONG_NAME;
  48         if (IVAL(inhdr, SMB2_HDR_FLAGS) & SMB2_HDR_FLAG_DFS) {
  49                 smbreq->flags2 |= FLAGS2_DFS_PATHNAMES;
  50         }
  51         smbreq->mid = BVAL(inhdr, SMB2_HDR_MESSAGE_ID);
  52         smbreq->chain_fsp = req->compat_chain_fsp;
  53         smbreq->smb2req = req;
  54         req->smb1req = smbreq;
  55
  56         return smbreq;
  57 }
  58
  59 /*********************************************************
  60  Called from file_free() to remove any chained fsp pointers.
  61 *********************************************************/
  62
  63 void remove_smb2_chained_fsp(files_struct *fsp)
  64 {
  65         struct smbd_server_connection *sconn = fsp->conn->sconn;
  66         struct smbd_smb2_request *smb2req;
  67
  68         for (smb2req = sconn->smb2.requests; smb2req; smb2req = smb2req->next) {
  69                 if (smb2req->compat_chain_fsp == fsp) {
  70                         smb2req->compat_chain_fsp = NULL;
  71                 }
  72                 if (smb2req->smb1req && smb2req->smb1req->chain_fsp == fsp) {
  73                         smb2req->smb1req->chain_fsp = NULL;
  74                 }
  75         }
  76 }