/src/samba/source4/libcli/raw/rawreadwrite.c

Source
/*
   Unix SMB/CIFS implementation.
   client file read/write routines
   Copyright (C) Andrew Tridgell 1994-1998
   Copyright (C) James Myers 2003

   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 "libcli/raw/libcliraw.h"
#include "libcli/raw/raw_proto.h"

#define SETUP_REQUEST(cmd, wct, buflen) do { \
  req = smbcli_request_setup(tree, cmd, wct, buflen); \
  if (!req) return NULL; \
} while (0)

/****************************************************************************
 low level read operation (async send)
****************************************************************************/
_PUBLIC_ struct smbcli_request *smb_raw_read_send(struct smbcli_tree *tree, union smb_read *parms)
{
  bool bigoffset = false;
  struct smbcli_request *req = NULL;

  switch (parms->generic.level) {
  case RAW_READ_READBRAW:
    if (tree->session->transport->negotiate.capabilities & CAP_LARGE_FILES) {
      bigoffset = true;
    }
    SETUP_REQUEST(SMBreadbraw, bigoffset? 10:8, 0);
    SSVAL(req->out.vwv, VWV(0), parms->readbraw.in.file.fnum);
    SIVAL(req->out.vwv, VWV(1), parms->readbraw.in.offset);
    SSVAL(req->out.vwv, VWV(3), parms->readbraw.in.maxcnt);
    SSVAL(req->out.vwv, VWV(4), parms->readbraw.in.mincnt);
    SIVAL(req->out.vwv, VWV(5), parms->readbraw.in.timeout);
    SSVAL(req->out.vwv, VWV(7), 0); /* reserved */
    if (bigoffset) {
      SIVAL(req->out.vwv, VWV(8),parms->readbraw.in.offset>>32);
    }
    break;

  case RAW_READ_LOCKREAD:
    SETUP_REQUEST(SMBlockread, 5, 0);
    SSVAL(req->out.vwv, VWV(0), parms->lockread.in.file.fnum);
    SSVAL(req->out.vwv, VWV(1), parms->lockread.in.count);
    SIVAL(req->out.vwv, VWV(2), parms->lockread.in.offset);
    SSVAL(req->out.vwv, VWV(4), parms->lockread.in.remaining);
    break;

  case RAW_READ_READ:
    SETUP_REQUEST(SMBread, 5, 0);
    SSVAL(req->out.vwv, VWV(0), parms->read.in.file.fnum);
    SSVAL(req->out.vwv, VWV(1), parms->read.in.count);
    SIVAL(req->out.vwv, VWV(2), parms->read.in.offset);
    SSVAL(req->out.vwv, VWV(4), parms->read.in.remaining);
    break;

  case RAW_READ_READX:
    if (tree->session->transport->negotiate.capabilities & CAP_LARGE_FILES) {
      bigoffset = true;
    }
    SETUP_REQUEST(SMBreadX, bigoffset ? 12 : 10, 0);
    SSVAL(req->out.vwv, VWV(0), SMB_CHAIN_NONE);
    SSVAL(req->out.vwv, VWV(1), 0);
    SSVAL(req->out.vwv, VWV(2), parms->readx.in.file.fnum);
    SIVAL(req->out.vwv, VWV(3), parms->readx.in.offset);
    SSVAL(req->out.vwv, VWV(5), parms->readx.in.maxcnt & 0xFFFF);
    SSVAL(req->out.vwv, VWV(6), parms->readx.in.mincnt);
    SIVAL(req->out.vwv, VWV(7), parms->readx.in.maxcnt >> 16);
    SSVAL(req->out.vwv, VWV(9), parms->readx.in.remaining);
    /*
     * TODO: give an error when the offset is 64 bit
     *       and the server doesn't support it
     */
    if (bigoffset) {
      SIVAL(req->out.vwv, VWV(10),parms->readx.in.offset>>32);
    }
    if (parms->readx.in.read_for_execute) {
      uint16_t flags2 = SVAL(req->out.hdr, HDR_FLG2);
      flags2 |= FLAGS2_READ_PERMIT_EXECUTE;
      SSVAL(req->out.hdr, HDR_FLG2, flags2);
    }
    break;

  case RAW_READ_SMB2:
    return NULL;
  }

  if (!smbcli_request_send(req)) {
    smbcli_request_destroy(req);
    return NULL;
  }

  return req;
}

/****************************************************************************
 low level read operation (async recv)
****************************************************************************/
_PUBLIC_ NTSTATUS smb_raw_read_recv(struct smbcli_request *req, union smb_read *parms)
{
  if (!smbcli_request_receive(req) ||
      smbcli_request_is_error(req)) {
    goto failed;
  }

  switch (parms->generic.level) {
  case RAW_READ_READBRAW:
    parms->readbraw.out.nread = req->in.size - NBT_HDR_SIZE;
    if (parms->readbraw.out.nread >
        MAX(parms->readx.in.mincnt, parms->readx.in.maxcnt)) {
      req->status = NT_STATUS_BUFFER_TOO_SMALL;
      goto failed;
    }
    memcpy(parms->readbraw.out.data, req->in.buffer + NBT_HDR_SIZE, parms->readbraw.out.nread);
    break;

  case RAW_READ_LOCKREAD:
    SMBCLI_CHECK_WCT(req, 5);
    parms->lockread.out.nread = SVAL(req->in.vwv, VWV(0));
    if (parms->lockread.out.nread > parms->lockread.in.count ||
        !smbcli_raw_pull_data(&req->in.bufinfo, req->in.data+3,
               parms->lockread.out.nread, parms->lockread.out.data)) {
      req->status = NT_STATUS_BUFFER_TOO_SMALL;
    }
    break;

  case RAW_READ_READ:
    /* there are 4 reserved words in the reply */
    SMBCLI_CHECK_WCT(req, 5);
    parms->read.out.nread = SVAL(req->in.vwv, VWV(0));
    if (parms->read.out.nread > parms->read.in.count ||
        !smbcli_raw_pull_data(&req->in.bufinfo, req->in.data+3,
               parms->read.out.nread, parms->read.out.data)) {
      req->status = NT_STATUS_BUFFER_TOO_SMALL;
    }
    break;

  case RAW_READ_READX:
    /* there are 5 reserved words in the reply */
    SMBCLI_CHECK_WCT(req, 12);
    parms->readx.out.remaining       = SVAL(req->in.vwv, VWV(2));
    parms->readx.out.compaction_mode = SVAL(req->in.vwv, VWV(3));
    parms->readx.out.nread = SVAL(req->in.vwv, VWV(5));
    parms->readx.out.flags2 = req->flags2;
    parms->readx.out.data_offset = SVAL(req->in.vwv, VWV(6));

    /* handle oversize replies for non-chained readx replies with
       CAP_LARGE_READX. The snia spec has must to answer for. */
    if ((req->tree->session->transport->negotiate.capabilities & CAP_LARGE_READX)
        && CVAL(req->in.vwv, VWV(0)) == SMB_CHAIN_NONE &&
        req->in.size >= 0x10000) {
      parms->readx.out.nread += (SVAL(req->in.vwv, VWV(7)) << 16);
      if (req->in.hdr + SVAL(req->in.vwv, VWV(6)) +
          parms->readx.out.nread <=
          req->in.buffer + req->in.size) {
        req->in.data_size += (SVAL(req->in.vwv, VWV(7)) << 16);

        /* update the bufinfo with the new size */
        smb_setup_bufinfo(req);
      }
    }

    if (parms->readx.out.nread > MAX(parms->readx.in.mincnt, parms->readx.in.maxcnt) ||
        !smbcli_raw_pull_data(&req->in.bufinfo, req->in.hdr + SVAL(req->in.vwv, VWV(6)),
               parms->readx.out.nread,
               parms->readx.out.data)) {
      req->status = NT_STATUS_BUFFER_TOO_SMALL;
    }
    break;

  case RAW_READ_SMB2:
    req->status = NT_STATUS_INTERNAL_ERROR;
    break;
  }

failed:
  return smbcli_request_destroy(req);
}

/****************************************************************************
 low level read operation (sync interface)
****************************************************************************/
_PUBLIC_ NTSTATUS smb_raw_read(struct smbcli_tree *tree, union smb_read *parms)
{
  struct smbcli_request *req = smb_raw_read_send(tree, parms);
  return smb_raw_read_recv(req, parms);
}


/****************************************************************************
 raw write interface (async send)
****************************************************************************/
_PUBLIC_ struct smbcli_request *smb_raw_write_send(struct smbcli_tree *tree, union smb_write *parms)
{
  bool bigoffset = false;
  struct smbcli_request *req = NULL;

  switch (parms->generic.level) {
  case RAW_WRITE_WRITEUNLOCK:
    SETUP_REQUEST(SMBwriteunlock, 5, 3 + parms->writeunlock.in.count);
    SSVAL(req->out.vwv, VWV(0), parms->writeunlock.in.file.fnum);
    SSVAL(req->out.vwv, VWV(1), parms->writeunlock.in.count);
    SIVAL(req->out.vwv, VWV(2), parms->writeunlock.in.offset);
    SSVAL(req->out.vwv, VWV(4), parms->writeunlock.in.remaining);
    SCVAL(req->out.data, 0, SMB_DATA_BLOCK);
    SSVAL(req->out.data, 1, parms->writeunlock.in.count);
    if (parms->writeunlock.in.count > 0) {
      memcpy(req->out.data+3, parms->writeunlock.in.data,
             parms->writeunlock.in.count);
    }
    break;

  case RAW_WRITE_WRITE:
    SETUP_REQUEST(SMBwrite, 5,  3 + parms->write.in.count);
    SSVAL(req->out.vwv, VWV(0), parms->write.in.file.fnum);
    SSVAL(req->out.vwv, VWV(1), parms->write.in.count);
    SIVAL(req->out.vwv, VWV(2), parms->write.in.offset);
    SSVAL(req->out.vwv, VWV(4), parms->write.in.remaining);
    SCVAL(req->out.data, 0, SMB_DATA_BLOCK);
    SSVAL(req->out.data, 1, parms->write.in.count);
    if (parms->write.in.count > 0) {
      memcpy(req->out.data+3, parms->write.in.data, parms->write.in.count);
    }
    break;

  case RAW_WRITE_WRITECLOSE:
    SETUP_REQUEST(SMBwriteclose, 6, 1 + parms->writeclose.in.count);
    SSVAL(req->out.vwv, VWV(0), parms->writeclose.in.file.fnum);
    SSVAL(req->out.vwv, VWV(1), parms->writeclose.in.count);
    SIVAL(req->out.vwv, VWV(2), parms->writeclose.in.offset);
    raw_push_dos_date3(tree->session->transport,
          req->out.vwv, VWV(4), parms->writeclose.in.mtime);
    SCVAL(req->out.data, 0, 0);
    if (parms->writeclose.in.count > 0) {
      memcpy(req->out.data+1, parms->writeclose.in.data,
             parms->writeclose.in.count);
    }
    break;

  case RAW_WRITE_WRITEX:
    if (tree->session->transport->negotiate.capabilities & CAP_LARGE_FILES) {
      bigoffset = true;
    }
    SETUP_REQUEST(SMBwriteX, bigoffset ? 14 : 12, parms->writex.in.count);
    SSVAL(req->out.vwv, VWV(0), SMB_CHAIN_NONE);
    SSVAL(req->out.vwv, VWV(1), 0);
    SSVAL(req->out.vwv, VWV(2), parms->writex.in.file.fnum);
    SIVAL(req->out.vwv, VWV(3), parms->writex.in.offset);
    SIVAL(req->out.vwv, VWV(5), 0); /* reserved */
    SSVAL(req->out.vwv, VWV(7), parms->writex.in.wmode);
    SSVAL(req->out.vwv, VWV(8), parms->writex.in.remaining);
    SSVAL(req->out.vwv, VWV(9), parms->writex.in.count>>16);
    SSVAL(req->out.vwv, VWV(10), parms->writex.in.count);
    SSVAL(req->out.vwv, VWV(11), PTR_DIFF(req->out.data, req->out.hdr));
    if (bigoffset) {
            SIVAL(req->out.vwv,VWV(12),parms->writex.in.offset>>32);
    }
          if (parms->writex.in.count > 0) {
      memcpy(req->out.data, parms->writex.in.data, parms->writex.in.count);
    }
    break;

  case RAW_WRITE_SPLWRITE:
    SETUP_REQUEST(SMBsplwr, 1, parms->splwrite.in.count);
    SSVAL(req->out.vwv, VWV(0), parms->splwrite.in.file.fnum);
    if (parms->splwrite.in.count > 0) {
      memcpy(req->out.data, parms->splwrite.in.data, parms->splwrite.in.count);
    }
    break;

  case RAW_WRITE_SMB2:
    return NULL;
  }

  if (!smbcli_request_send(req)) {
    smbcli_request_destroy(req);
    return NULL;
  }

  return req;
}


/****************************************************************************
 raw write interface (async recv)
****************************************************************************/
_PUBLIC_ NTSTATUS smb_raw_write_recv(struct smbcli_request *req, union smb_write *parms)
{
  if (!smbcli_request_receive(req) ||
      !NT_STATUS_IS_OK(req->status)) {
    goto failed;
  }

  switch (parms->generic.level) {
  case RAW_WRITE_WRITEUNLOCK:
    SMBCLI_CHECK_WCT(req, 1);
    parms->writeunlock.out.nwritten = SVAL(req->in.vwv, VWV(0));
    break;
  case RAW_WRITE_WRITE:
    SMBCLI_CHECK_WCT(req, 1);
    parms->write.out.nwritten = SVAL(req->in.vwv, VWV(0));
    break;
  case RAW_WRITE_WRITECLOSE:
    SMBCLI_CHECK_WCT(req, 1);
    parms->writeclose.out.nwritten = SVAL(req->in.vwv, VWV(0));
    break;
  case RAW_WRITE_WRITEX:
    SMBCLI_CHECK_WCT(req, 6);
    parms->writex.out.nwritten  = SVAL(req->in.vwv, VWV(2));
    parms->writex.out.nwritten += (CVAL(req->in.vwv, VWV(4)) << 16);
    parms->writex.out.remaining = SVAL(req->in.vwv, VWV(3));
    break;
  case RAW_WRITE_SPLWRITE:
    break;
  case RAW_WRITE_SMB2:
    req->status = NT_STATUS_INTERNAL_ERROR;
    break;
  }

failed:
  return smbcli_request_destroy(req);
}

/****************************************************************************
 raw write interface (sync interface)
****************************************************************************/
_PUBLIC_ NTSTATUS smb_raw_write(struct smbcli_tree *tree, union smb_write *parms)
{
  struct smbcli_request *req = smb_raw_write_send(tree, parms);
  return smb_raw_write_recv(req, parms);
}

Coverage Report

Created: 2026-09-03 07:24

Line	Count	Source
1		/*
2		Unix SMB/CIFS implementation.
3		client file read/write routines
4		Copyright (C) Andrew Tridgell 1994-1998
5		Copyright (C) James Myers 2003
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 "libcli/raw/libcliraw.h"
23		#include "libcli/raw/raw_proto.h"
24
25	0	#define SETUP_REQUEST(cmd, wct, buflen) do { \
26	0	req = smbcli_request_setup(tree, cmd, wct, buflen); \
27	0	if (!req) return NULL; \
28	0	} while (0)
29
30		/****************************************************************************
31		low level read operation (async send)
32		****************************************************************************/
33		_PUBLIC_ struct smbcli_request smb_raw_read_send(struct smbcli_tree tree, union smb_read *parms)
34	0	{
35	0	bool bigoffset = false;
36	0	struct smbcli_request *req = NULL;
37
38	0	switch (parms->generic.level) {
39	0	case RAW_READ_READBRAW:
40	0	if (tree->session->transport->negotiate.capabilities & CAP_LARGE_FILES) {
41	0	bigoffset = true;
42	0	}
43	0	SETUP_REQUEST(SMBreadbraw, bigoffset? 10:8, 0);
44	0	SSVAL(req->out.vwv, VWV(0), parms->readbraw.in.file.fnum);
45	0	SIVAL(req->out.vwv, VWV(1), parms->readbraw.in.offset);
46	0	SSVAL(req->out.vwv, VWV(3), parms->readbraw.in.maxcnt);
47	0	SSVAL(req->out.vwv, VWV(4), parms->readbraw.in.mincnt);
48	0	SIVAL(req->out.vwv, VWV(5), parms->readbraw.in.timeout);
49	0	SSVAL(req->out.vwv, VWV(7), 0); /* reserved */
50	0	if (bigoffset) {
51	0	SIVAL(req->out.vwv, VWV(8),parms->readbraw.in.offset>>32);
52	0	}
53	0	break;
54
55	0	case RAW_READ_LOCKREAD:
56	0	SETUP_REQUEST(SMBlockread, 5, 0);
57	0	SSVAL(req->out.vwv, VWV(0), parms->lockread.in.file.fnum);
58	0	SSVAL(req->out.vwv, VWV(1), parms->lockread.in.count);
59	0	SIVAL(req->out.vwv, VWV(2), parms->lockread.in.offset);
60	0	SSVAL(req->out.vwv, VWV(4), parms->lockread.in.remaining);
61	0	break;
62
63	0	case RAW_READ_READ:
64	0	SETUP_REQUEST(SMBread, 5, 0);
65	0	SSVAL(req->out.vwv, VWV(0), parms->read.in.file.fnum);
66	0	SSVAL(req->out.vwv, VWV(1), parms->read.in.count);
67	0	SIVAL(req->out.vwv, VWV(2), parms->read.in.offset);
68	0	SSVAL(req->out.vwv, VWV(4), parms->read.in.remaining);
69	0	break;
70
71	0	case RAW_READ_READX:
72	0	if (tree->session->transport->negotiate.capabilities & CAP_LARGE_FILES) {
73	0	bigoffset = true;
74	0	}
75	0	SETUP_REQUEST(SMBreadX, bigoffset ? 12 : 10, 0);
76	0	SSVAL(req->out.vwv, VWV(0), SMB_CHAIN_NONE);
77	0	SSVAL(req->out.vwv, VWV(1), 0);
78	0	SSVAL(req->out.vwv, VWV(2), parms->readx.in.file.fnum);
79	0	SIVAL(req->out.vwv, VWV(3), parms->readx.in.offset);
80	0	SSVAL(req->out.vwv, VWV(5), parms->readx.in.maxcnt & 0xFFFF);
81	0	SSVAL(req->out.vwv, VWV(6), parms->readx.in.mincnt);
82	0	SIVAL(req->out.vwv, VWV(7), parms->readx.in.maxcnt >> 16);
83	0	SSVAL(req->out.vwv, VWV(9), parms->readx.in.remaining);
84		/*
85		* TODO: give an error when the offset is 64 bit
86		* and the server doesn't support it
87		*/
88	0	if (bigoffset) {
89	0	SIVAL(req->out.vwv, VWV(10),parms->readx.in.offset>>32);
90	0	}
91	0	if (parms->readx.in.read_for_execute) {
92	0	uint16_t flags2 = SVAL(req->out.hdr, HDR_FLG2);
93	0	flags2 \|= FLAGS2_READ_PERMIT_EXECUTE;
94	0	SSVAL(req->out.hdr, HDR_FLG2, flags2);
95	0	}
96	0	break;
97
98	0	case RAW_READ_SMB2:
99	0	return NULL;
100	0	}
101
102	0	if (!smbcli_request_send(req)) {
103	0	smbcli_request_destroy(req);
104	0	return NULL;
105	0	}
106
107	0	return req;
108	0	}
109
110		/****************************************************************************
111		low level read operation (async recv)
112		****************************************************************************/
113		_PUBLIC_ NTSTATUS smb_raw_read_recv(struct smbcli_request req, union smb_read parms)
114	0	{
115	0	if (!smbcli_request_receive(req) \|\|
116	0	smbcli_request_is_error(req)) {
117	0	goto failed;
118	0	}
119
120	0	switch (parms->generic.level) {
121	0	case RAW_READ_READBRAW:
122	0	parms->readbraw.out.nread = req->in.size - NBT_HDR_SIZE;
123	0	if (parms->readbraw.out.nread >
124	0	MAX(parms->readx.in.mincnt, parms->readx.in.maxcnt)) {
125	0	req->status = NT_STATUS_BUFFER_TOO_SMALL;
126	0	goto failed;
127	0	}
128	0	memcpy(parms->readbraw.out.data, req->in.buffer + NBT_HDR_SIZE, parms->readbraw.out.nread);
129	0	break;
130
131	0	case RAW_READ_LOCKREAD:
132	0	SMBCLI_CHECK_WCT(req, 5);
133	0	parms->lockread.out.nread = SVAL(req->in.vwv, VWV(0));
134	0	if (parms->lockread.out.nread > parms->lockread.in.count \|\|
135	0	!smbcli_raw_pull_data(&req->in.bufinfo, req->in.data+3,
136	0	parms->lockread.out.nread, parms->lockread.out.data)) {
137	0	req->status = NT_STATUS_BUFFER_TOO_SMALL;
138	0	}
139	0	break;
140
141	0	case RAW_READ_READ:
142		/* there are 4 reserved words in the reply */
143	0	SMBCLI_CHECK_WCT(req, 5);
144	0	parms->read.out.nread = SVAL(req->in.vwv, VWV(0));
145	0	if (parms->read.out.nread > parms->read.in.count \|\|
146	0	!smbcli_raw_pull_data(&req->in.bufinfo, req->in.data+3,
147	0	parms->read.out.nread, parms->read.out.data)) {
148	0	req->status = NT_STATUS_BUFFER_TOO_SMALL;
149	0	}
150	0	break;
151
152	0	case RAW_READ_READX:
153		/* there are 5 reserved words in the reply */
154	0	SMBCLI_CHECK_WCT(req, 12);
155	0	parms->readx.out.remaining = SVAL(req->in.vwv, VWV(2));
156	0	parms->readx.out.compaction_mode = SVAL(req->in.vwv, VWV(3));
157	0	parms->readx.out.nread = SVAL(req->in.vwv, VWV(5));
158	0	parms->readx.out.flags2 = req->flags2;
159	0	parms->readx.out.data_offset = SVAL(req->in.vwv, VWV(6));
160
161		/* handle oversize replies for non-chained readx replies with
162		CAP_LARGE_READX. The snia spec has must to answer for. */
163	0	if ((req->tree->session->transport->negotiate.capabilities & CAP_LARGE_READX)
164	0	&& CVAL(req->in.vwv, VWV(0)) == SMB_CHAIN_NONE &&
165	0	req->in.size >= 0x10000) {
166	0	parms->readx.out.nread += (SVAL(req->in.vwv, VWV(7)) << 16);
167	0	if (req->in.hdr + SVAL(req->in.vwv, VWV(6)) +
168	0	parms->readx.out.nread <=
169	0	req->in.buffer + req->in.size) {
170	0	req->in.data_size += (SVAL(req->in.vwv, VWV(7)) << 16);
171
172		/* update the bufinfo with the new size */
173	0	smb_setup_bufinfo(req);
174	0	}
175	0	}
176
177	0	if (parms->readx.out.nread > MAX(parms->readx.in.mincnt, parms->readx.in.maxcnt) \|\|
178	0	!smbcli_raw_pull_data(&req->in.bufinfo, req->in.hdr + SVAL(req->in.vwv, VWV(6)),
179	0	parms->readx.out.nread,
180	0	parms->readx.out.data)) {
181	0	req->status = NT_STATUS_BUFFER_TOO_SMALL;
182	0	}
183	0	break;
184
185	0	case RAW_READ_SMB2:
186	0	req->status = NT_STATUS_INTERNAL_ERROR;
187	0	break;
188	0	}
189
190	0	failed:
191	0	return smbcli_request_destroy(req);
192	0	}
193
194		/****************************************************************************
195		low level read operation (sync interface)
196		****************************************************************************/
197		_PUBLIC_ NTSTATUS smb_raw_read(struct smbcli_tree tree, union smb_read parms)
198	0	{
199	0	struct smbcli_request *req = smb_raw_read_send(tree, parms);
200	0	return smb_raw_read_recv(req, parms);
201	0	}
202
203
204		/****************************************************************************
205		raw write interface (async send)
206		****************************************************************************/
207		_PUBLIC_ struct smbcli_request smb_raw_write_send(struct smbcli_tree tree, union smb_write *parms)
208	0	{
209	0	bool bigoffset = false;
210	0	struct smbcli_request *req = NULL;
211
212	0	switch (parms->generic.level) {
213	0	case RAW_WRITE_WRITEUNLOCK:
214	0	SETUP_REQUEST(SMBwriteunlock, 5, 3 + parms->writeunlock.in.count);
215	0	SSVAL(req->out.vwv, VWV(0), parms->writeunlock.in.file.fnum);
216	0	SSVAL(req->out.vwv, VWV(1), parms->writeunlock.in.count);
217	0	SIVAL(req->out.vwv, VWV(2), parms->writeunlock.in.offset);
218	0	SSVAL(req->out.vwv, VWV(4), parms->writeunlock.in.remaining);
219	0	SCVAL(req->out.data, 0, SMB_DATA_BLOCK);
220	0	SSVAL(req->out.data, 1, parms->writeunlock.in.count);
221	0	if (parms->writeunlock.in.count > 0) {
222	0	memcpy(req->out.data+3, parms->writeunlock.in.data,
223	0	parms->writeunlock.in.count);
224	0	}
225	0	break;
226
227	0	case RAW_WRITE_WRITE:
228	0	SETUP_REQUEST(SMBwrite, 5, 3 + parms->write.in.count);
229	0	SSVAL(req->out.vwv, VWV(0), parms->write.in.file.fnum);
230	0	SSVAL(req->out.vwv, VWV(1), parms->write.in.count);
231	0	SIVAL(req->out.vwv, VWV(2), parms->write.in.offset);
232	0	SSVAL(req->out.vwv, VWV(4), parms->write.in.remaining);
233	0	SCVAL(req->out.data, 0, SMB_DATA_BLOCK);
234	0	SSVAL(req->out.data, 1, parms->write.in.count);
235	0	if (parms->write.in.count > 0) {
236	0	memcpy(req->out.data+3, parms->write.in.data, parms->write.in.count);
237	0	}
238	0	break;
239
240	0	case RAW_WRITE_WRITECLOSE:
241	0	SETUP_REQUEST(SMBwriteclose, 6, 1 + parms->writeclose.in.count);
242	0	SSVAL(req->out.vwv, VWV(0), parms->writeclose.in.file.fnum);
243	0	SSVAL(req->out.vwv, VWV(1), parms->writeclose.in.count);
244	0	SIVAL(req->out.vwv, VWV(2), parms->writeclose.in.offset);
245	0	raw_push_dos_date3(tree->session->transport,
246	0	req->out.vwv, VWV(4), parms->writeclose.in.mtime);
247	0	SCVAL(req->out.data, 0, 0);
248	0	if (parms->writeclose.in.count > 0) {
249	0	memcpy(req->out.data+1, parms->writeclose.in.data,
250	0	parms->writeclose.in.count);
251	0	}
252	0	break;
253
254	0	case RAW_WRITE_WRITEX:
255	0	if (tree->session->transport->negotiate.capabilities & CAP_LARGE_FILES) {
256	0	bigoffset = true;
257	0	}
258	0	SETUP_REQUEST(SMBwriteX, bigoffset ? 14 : 12, parms->writex.in.count);
259	0	SSVAL(req->out.vwv, VWV(0), SMB_CHAIN_NONE);
260	0	SSVAL(req->out.vwv, VWV(1), 0);
261	0	SSVAL(req->out.vwv, VWV(2), parms->writex.in.file.fnum);
262	0	SIVAL(req->out.vwv, VWV(3), parms->writex.in.offset);
263	0	SIVAL(req->out.vwv, VWV(5), 0); /* reserved */
264	0	SSVAL(req->out.vwv, VWV(7), parms->writex.in.wmode);
265	0	SSVAL(req->out.vwv, VWV(8), parms->writex.in.remaining);
266	0	SSVAL(req->out.vwv, VWV(9), parms->writex.in.count>>16);
267	0	SSVAL(req->out.vwv, VWV(10), parms->writex.in.count);
268	0	SSVAL(req->out.vwv, VWV(11), PTR_DIFF(req->out.data, req->out.hdr));
269	0	if (bigoffset) {
270	0	SIVAL(req->out.vwv,VWV(12),parms->writex.in.offset>>32);
271	0	}
272	0	if (parms->writex.in.count > 0) {
273	0	memcpy(req->out.data, parms->writex.in.data, parms->writex.in.count);
274	0	}
275	0	break;
276
277	0	case RAW_WRITE_SPLWRITE:
278	0	SETUP_REQUEST(SMBsplwr, 1, parms->splwrite.in.count);
279	0	SSVAL(req->out.vwv, VWV(0), parms->splwrite.in.file.fnum);
280	0	if (parms->splwrite.in.count > 0) {
281	0	memcpy(req->out.data, parms->splwrite.in.data, parms->splwrite.in.count);
282	0	}
283	0	break;
284
285	0	case RAW_WRITE_SMB2:
286	0	return NULL;
287	0	}
288
289	0	if (!smbcli_request_send(req)) {
290	0	smbcli_request_destroy(req);
291	0	return NULL;
292	0	}
293
294	0	return req;
295	0	}
296
297
298		/****************************************************************************
299		raw write interface (async recv)
300		****************************************************************************/
301		_PUBLIC_ NTSTATUS smb_raw_write_recv(struct smbcli_request req, union smb_write parms)
302	0	{
303	0	if (!smbcli_request_receive(req) \|\|
304	0	!NT_STATUS_IS_OK(req->status)) {
305	0	goto failed;
306	0	}
307
308	0	switch (parms->generic.level) {
309	0	case RAW_WRITE_WRITEUNLOCK:
310	0	SMBCLI_CHECK_WCT(req, 1);
311	0	parms->writeunlock.out.nwritten = SVAL(req->in.vwv, VWV(0));
312	0	break;
313	0	case RAW_WRITE_WRITE:
314	0	SMBCLI_CHECK_WCT(req, 1);
315	0	parms->write.out.nwritten = SVAL(req->in.vwv, VWV(0));
316	0	break;
317	0	case RAW_WRITE_WRITECLOSE:
318	0	SMBCLI_CHECK_WCT(req, 1);
319	0	parms->writeclose.out.nwritten = SVAL(req->in.vwv, VWV(0));
320	0	break;
321	0	case RAW_WRITE_WRITEX:
322	0	SMBCLI_CHECK_WCT(req, 6);
323	0	parms->writex.out.nwritten = SVAL(req->in.vwv, VWV(2));
324	0	parms->writex.out.nwritten += (CVAL(req->in.vwv, VWV(4)) << 16);
325	0	parms->writex.out.remaining = SVAL(req->in.vwv, VWV(3));
326	0	break;
327	0	case RAW_WRITE_SPLWRITE:
328	0	break;
329	0	case RAW_WRITE_SMB2:
330	0	req->status = NT_STATUS_INTERNAL_ERROR;
331	0	break;
332	0	}
333
334	0	failed:
335	0	return smbcli_request_destroy(req);
336	0	}
337
338		/****************************************************************************
339		raw write interface (sync interface)
340		****************************************************************************/
341		_PUBLIC_ NTSTATUS smb_raw_write(struct smbcli_tree tree, union smb_write parms)
342	0	{
343	0	struct smbcli_request *req = smb_raw_write_send(tree, parms);
344	0	return smb_raw_write_recv(req, parms);
345	0	}