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