source3/smbd/smb2_close.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 static NTSTATUS smbd_smb2_close(struct smbd_smb2_request *req,
  27                                 uint16_t in_flags,
  28                                 uint64_t in_file_id_volatile,
  29                                 DATA_BLOB *outbody);
  30
  31 NTSTATUS smbd_smb2_request_process_close(struct smbd_smb2_request *req)
  32 {
  33         const uint8_t *inbody;
  34         int i = req->current_idx;
  35         uint8_t *outhdr;
  36         DATA_BLOB outbody;
  37         uint16_t in_flags;
  38         uint64_t in_file_id_persistent;
  39         uint64_t in_file_id_volatile;
  40         NTSTATUS status;
  41
  42         status = smbd_smb2_request_verify_sizes(req, 0x18);
  43         if (!NT_STATUS_IS_OK(status)) {
  44                 return smbd_smb2_request_error(req, status);
  45         }
  46         inbody = (const uint8_t *)req->in.vector[i+1].iov_base;
  47
  48         outbody = data_blob_talloc(req->out.vector, NULL, 0x3C);
  49         if (outbody.data == NULL) {
  50                 return smbd_smb2_request_error(req, NT_STATUS_NO_MEMORY);
  51         }
  52
  53         in_flags                = SVAL(inbody, 0x02);
  54         in_file_id_persistent   = BVAL(inbody, 0x08);
  55         in_file_id_volatile     = BVAL(inbody, 0x10);
  56
  57         if (req->compat_chain_fsp) {
  58                 /* skip check */
  59         } else if (in_file_id_persistent != in_file_id_volatile) {
  60                 return smbd_smb2_request_error(req, NT_STATUS_FILE_CLOSED);
  61         }
  62
  63         status = smbd_smb2_close(req,
  64                                 in_flags,
  65                                 in_file_id_volatile,
  66                                 &outbody);
  67         if (!NT_STATUS_IS_OK(status)) {
  68                 return smbd_smb2_request_error(req, status);
  69         }
  70
  71         outhdr = (uint8_t *)req->out.vector[i].iov_base;
  72         return smbd_smb2_request_done(req, outbody, NULL);
  73 }
  74
  75 static NTSTATUS smbd_smb2_close(struct smbd_smb2_request *req,
  76                                 uint16_t in_flags,
  77                                 uint64_t in_file_id_volatile,
  78                                 DATA_BLOB *outbody)
  79 {
  80         NTSTATUS status;
  81         struct smb_request *smbreq;
  82         connection_struct *conn = req->tcon->compat_conn;
  83         files_struct *fsp;
  84         struct smb_filename *smb_fname = NULL;
  85         struct timespec mdate_ts, adate_ts, cdate_ts, create_date_ts;
  86         uint64_t allocation_size = 0;
  87         uint64_t file_size = 0;
  88         uint32_t dos_attrs = 0;
  89         uint16_t out_flags = 0;
  90         bool posix_open = false;
  91
  92         ZERO_STRUCT(create_date_ts);
  93         ZERO_STRUCT(adate_ts);
  94         ZERO_STRUCT(mdate_ts);
  95         ZERO_STRUCT(cdate_ts);
  96
  97         DEBUG(10,("smbd_smb2_close: file_id[0x%016llX]\n",
  98                   (unsigned long long)in_file_id_volatile));
  99
 100         smbreq = smbd_smb2_fake_smb_request(req);
 101         if (smbreq == NULL) {
 102                 return NT_STATUS_NO_MEMORY;
 103         }
 104
 105         fsp = file_fsp(smbreq, (uint16_t)in_file_id_volatile);
 106         if (fsp == NULL) {
 107                 return NT_STATUS_FILE_CLOSED;
 108         }
 109         if (conn != fsp->conn) {
 110                 return NT_STATUS_FILE_CLOSED;
 111         }
 112         if (req->session->vuid != fsp->vuid) {
 113                 return NT_STATUS_FILE_CLOSED;
 114         }
 115
 116         posix_open = fsp->posix_open;
 117         status = copy_smb_filename(talloc_tos(),
 118                                 fsp->fsp_name,
 119                                 &smb_fname);
 120         if (!NT_STATUS_IS_OK(status)) {
 121                 return status;
 122         }
 123
 124         status = close_file(smbreq, fsp, NORMAL_CLOSE);
 125         if (!NT_STATUS_IS_OK(status)) {
 126                 DEBUG(5,("smbd_smb2_close: close_file[%s]: %s\n",
 127                          fsp_str_dbg(fsp), nt_errstr(status)));
 128                 return status;
 129         }
 130
 131         if (in_flags & SMB2_CLOSE_FLAGS_FULL_INFORMATION) {
 132                 int ret;
 133                 if (posix_open) {
 134                         ret = SMB_VFS_LSTAT(conn, smb_fname);
 135                 } else {
 136                         ret = SMB_VFS_STAT(conn, smb_fname);
 137                 }
 138                 if (ret == 0) {
 139                         out_flags = SMB2_CLOSE_FLAGS_FULL_INFORMATION;
 140                         dos_attrs = dos_mode(conn, smb_fname);
 141                         mdate_ts = smb_fname->st.st_ex_mtime;
 142                         adate_ts = smb_fname->st.st_ex_atime;
 143                         create_date_ts = get_create_timespec(conn, NULL, smb_fname);
 144                         cdate_ts = get_change_timespec(conn, NULL, smb_fname);
 145
 146                         if (lp_dos_filetime_resolution(SNUM(conn))) {
 147                                 dos_filetime_timespec(&create_date_ts);
 148                                 dos_filetime_timespec(&mdate_ts);
 149                                 dos_filetime_timespec(&adate_ts);
 150                                 dos_filetime_timespec(&cdate_ts);
 151                         }
 152                         if (!(dos_attrs & FILE_ATTRIBUTE_DIRECTORY)) {
 153                                 file_size = get_file_size_stat(&smb_fname->st);
 154                         }
 155
 156                         allocation_size = SMB_VFS_GET_ALLOC_SIZE(conn, NULL, &smb_fname->st);
 157                 }
 158         }
 159
 160         SSVAL(outbody->data, 0x00, 0x3C);       /* struct size */
 161         SSVAL(outbody->data, 0x02, out_flags);  /* flags */
 162         SIVAL(outbody->data, 0x04, 0);          /* reserved */
 163         put_long_date_timespec(conn->ts_res,
 164                 (char *)&outbody->data[0x8],create_date_ts); /* creation time */
 165         put_long_date_timespec(conn->ts_res,
 166                 (char *)&outbody->data[0x10],adate_ts); /* last access time */
 167         put_long_date_timespec(conn->ts_res,
 168                 (char *)&outbody->data[0x18],mdate_ts); /* last write time */
 169         put_long_date_timespec(conn->ts_res,
 170                 (char *)&outbody->data[0x20],cdate_ts); /* change time */
 171         SBVAL(outbody->data, 0x28, allocation_size);/* allocation size */
 172         SBVAL(outbody->data, 0x30, file_size);  /* end of file */
 173         SIVAL(outbody->data, 0x38, dos_attrs);  /* file attributes */
 174
 175         return NT_STATUS_OK;
 176 }