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/*
Unix SMB/CIFS implementation.
Core SMB2 server
Copyright (C) Stefan Metzmacher 2009
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "includes.h"
#include "smbd/smbd.h"
#include "smbd/globals.h"
#include "../libcli/smb/smb_common.h"
static NTSTATUS smbd_smb2_close(struct smbd_smb2_request *req,
uint16_t in_flags,
uint64_t in_file_id_volatile,
DATA_BLOB *outbody);
NTSTATUS smbd_smb2_request_process_close(struct smbd_smb2_request *req)
{
const uint8_t *inhdr;
const uint8_t *inbody;
int i = req->current_idx;
uint8_t *outhdr;
DATA_BLOB outbody;
size_t expected_body_size = 0x18;
size_t body_size;
uint16_t in_flags;
uint64_t in_file_id_persistent;
uint64_t in_file_id_volatile;
NTSTATUS status;
inhdr = (const uint8_t *)req->in.vector[i+0].iov_base;
if (req->in.vector[i+1].iov_len != (expected_body_size & 0xFFFFFFFE)) {
return smbd_smb2_request_error(req, NT_STATUS_INVALID_PARAMETER);
}
inbody = (const uint8_t *)req->in.vector[i+1].iov_base;
body_size = SVAL(inbody, 0x00);
if (body_size != expected_body_size) {
return smbd_smb2_request_error(req, NT_STATUS_INVALID_PARAMETER);
}
outbody = data_blob_talloc(req->out.vector, NULL, 0x3C);
if (outbody.data == NULL) {
return smbd_smb2_request_error(req, NT_STATUS_NO_MEMORY);
}
in_flags = SVAL(inbody, 0x02);
in_file_id_persistent = BVAL(inbody, 0x08);
in_file_id_volatile = BVAL(inbody, 0x10);
if (req->compat_chain_fsp) {
/* skip check */
} else if (in_file_id_persistent != in_file_id_volatile) {
return smbd_smb2_request_error(req, NT_STATUS_FILE_CLOSED);
}
status = smbd_smb2_close(req,
in_flags,
in_file_id_volatile,
&outbody);
if (!NT_STATUS_IS_OK(status)) {
return smbd_smb2_request_error(req, status);
}
outhdr = (uint8_t *)req->out.vector[i].iov_base;
return smbd_smb2_request_done(req, outbody, NULL);
}
static NTSTATUS smbd_smb2_close(struct smbd_smb2_request *req,
uint16_t in_flags,
uint64_t in_file_id_volatile,
DATA_BLOB *outbody)
{
NTSTATUS status;
struct smb_request *smbreq;
connection_struct *conn = req->tcon->compat_conn;
files_struct *fsp;
struct smb_filename *smb_fname = NULL;
struct timespec mdate_ts, adate_ts, cdate_ts, create_date_ts;
uint64_t allocation_size = 0;
uint64_t file_size = 0;
uint32_t dos_attrs = 0;
uint16_t out_flags = 0;
bool posix_open = false;
ZERO_STRUCT(create_date_ts);
ZERO_STRUCT(adate_ts);
ZERO_STRUCT(mdate_ts);
ZERO_STRUCT(cdate_ts);
DEBUG(10,("smbd_smb2_close: file_id[0x%016llX]\n",
(unsigned long long)in_file_id_volatile));
smbreq = smbd_smb2_fake_smb_request(req);
if (smbreq == NULL) {
return NT_STATUS_NO_MEMORY;
}
fsp = file_fsp(smbreq, (uint16_t)in_file_id_volatile);
if (fsp == NULL) {
return NT_STATUS_FILE_CLOSED;
}
if (conn != fsp->conn) {
return NT_STATUS_FILE_CLOSED;
}
if (req->session->vuid != fsp->vuid) {
return NT_STATUS_FILE_CLOSED;
}
posix_open = fsp->posix_open;
status = copy_smb_filename(talloc_tos(),
fsp->fsp_name,
&smb_fname);
if (!NT_STATUS_IS_OK(status)) {
return status;
}
status = close_file(smbreq, fsp, NORMAL_CLOSE);
if (!NT_STATUS_IS_OK(status)) {
DEBUG(5,("smbd_smb2_close: close_file[%s]: %s\n",
fsp_str_dbg(fsp), nt_errstr(status)));
return status;
}
if (in_flags & SMB2_CLOSE_FLAGS_FULL_INFORMATION) {
int ret;
if (posix_open) {
ret = SMB_VFS_LSTAT(conn, smb_fname);
} else {
ret = SMB_VFS_STAT(conn, smb_fname);
}
if (ret == 0) {
out_flags = SMB2_CLOSE_FLAGS_FULL_INFORMATION;
dos_attrs = dos_mode(conn, smb_fname);
mdate_ts = smb_fname->st.st_ex_mtime;
adate_ts = smb_fname->st.st_ex_atime;
create_date_ts = get_create_timespec(conn, NULL, smb_fname);
cdate_ts = get_change_timespec(conn, NULL, smb_fname);
if (lp_dos_filetime_resolution(SNUM(conn))) {
dos_filetime_timespec(&create_date_ts);
dos_filetime_timespec(&mdate_ts);
dos_filetime_timespec(&adate_ts);
dos_filetime_timespec(&cdate_ts);
}
if (!(dos_attrs & FILE_ATTRIBUTE_DIRECTORY)) {
file_size = get_file_size_stat(&smb_fname->st);
}
allocation_size = SMB_VFS_GET_ALLOC_SIZE(conn, NULL, &smb_fname->st);
}
}
SSVAL(outbody->data, 0x00, 0x3C); /* struct size */
SSVAL(outbody->data, 0x02, out_flags); /* flags */
SIVAL(outbody->data, 0x04, 0); /* reserved */
put_long_date_timespec(conn->ts_res,
(char *)&outbody->data[0x8],create_date_ts); /* creation time */
put_long_date_timespec(conn->ts_res,
(char *)&outbody->data[0x10],adate_ts); /* last access time */
put_long_date_timespec(conn->ts_res,
(char *)&outbody->data[0x18],mdate_ts); /* last write time */
put_long_date_timespec(conn->ts_res,
(char *)&outbody->data[0x20],cdate_ts); /* change time */
SBVAL(outbody->data, 0x28, allocation_size);/* allocation size */
SBVAL(outbody->data, 0x30, file_size); /* end of file */
SIVAL(outbody->data, 0x38, dos_attrs); /* file attributes */
return NT_STATUS_OK;
}
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