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NetBSD/sys/netsmb/smb_smb.c
deberg f3b1291f2e resolve conflicts
2002-01-04 02:39:37 +00:00

663 lines
17 KiB
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/* $NetBSD: smb_smb.c,v 1.3 2002/01/04 02:39:44 deberg Exp $ */
/*
* Copyright (c) 2000-2001 Boris Popov
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by Boris Popov.
* 4. Neither the name of the author nor the names of any co-contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* FreeBSD: src/sys/netsmb/smb_smb.c,v 1.3 2001/12/10 08:09:48 obrien Exp
*/
/*
* various SMB requests. Most of the routines merely packs data into mbufs.
*/
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/kernel.h>
#include <sys/malloc.h>
#include <sys/proc.h>
#include <sys/lock.h>
#include <sys/sysctl.h>
#include <sys/socket.h>
#include <sys/uio.h>
#include <netsmb/iconv.h>
#include <netsmb/smb.h>
#include <netsmb/smb_subr.h>
#include <netsmb/smb_rq.h>
#include <netsmb/smb_conn.h>
#include <netsmb/smb_tran.h>
struct smb_dialect {
int d_id;
const char * d_name;
};
static struct smb_dialect smb_dialects[] = {
{SMB_DIALECT_CORE, "PC NETWORK PROGRAM 1.0"},
{SMB_DIALECT_COREPLUS, "MICROSOFT NETWORKS 1.03"},
{SMB_DIALECT_LANMAN1_0, "MICROSOFT NETWORKS 3.0"},
{SMB_DIALECT_LANMAN1_0, "LANMAN1.0"},
{SMB_DIALECT_LANMAN2_0, "LM1.2X002"},
{SMB_DIALECT_LANMAN2_0, "Samba"},
{SMB_DIALECT_NTLM0_12, "NT LANMAN 1.0"},
{SMB_DIALECT_NTLM0_12, "NT LM 0.12"},
{-1, NULL}
};
#define SMB_DIALECT_MAX (sizeof(smb_dialects) / sizeof(struct smb_dialect) - 2)
static int
smb_smb_nomux(struct smb_vc *vcp, struct smb_cred *scred, const char *name)
{
if (scred->scr_p == vcp->vc_iod->iod_p)
return 0;
SMBERROR("wrong function called(%s)\n", name);
return EINVAL;
}
int
smb_smb_negotiate(struct smb_vc *vcp, struct smb_cred *scred)
{
struct smb_dialect *dp;
struct smb_sopt *sp = NULL;
struct smb_rq *rqp;
struct mbchain *mbp;
struct mdchain *mdp;
u_int8_t wc, stime[8], sblen;
u_int16_t dindex, tw, tw1, swlen, bc;
int error, maxqsz;
if (smb_smb_nomux(vcp, scred, __func__) != 0)
return EINVAL;
vcp->vc_hflags = 0;
vcp->vc_hflags2 = 0;
vcp->obj.co_flags &= ~(SMBV_ENCRYPT);
sp = &vcp->vc_sopt;
bzero(sp, sizeof(struct smb_sopt));
error = smb_rq_alloc(VCTOCP(vcp), SMB_COM_NEGOTIATE, scred, &rqp);
if (error)
return error;
smb_rq_getrequest(rqp, &mbp);
smb_rq_wstart(rqp);
smb_rq_wend(rqp);
smb_rq_bstart(rqp);
for(dp = smb_dialects; dp->d_id != -1; dp++) {
mb_put_uint8(mbp, SMB_DT_DIALECT);
smb_put_dstring(mbp, vcp, dp->d_name, SMB_CS_NONE);
}
smb_rq_bend(rqp);
error = smb_rq_simple(rqp);
SMBSDEBUG("%d\n", error);
if (error)
goto bad;
smb_rq_getreply(rqp, &mdp);
do {
error = md_get_uint8(mdp, &wc);
if (error)
break;
error = md_get_uint16le(mdp, &dindex);
if (error)
break;
if (dindex > 7) {
SMBERROR("Don't know how to talk with server %s (%d)\n", "xxx", dindex);
error = EBADRPC;
break;
}
dp = smb_dialects + dindex;
sp->sv_proto = dp->d_id;
SMBSDEBUG("Dialect %s (%d, %d)\n", dp->d_name, dindex, wc);
error = EBADRPC;
if (dp->d_id >= SMB_DIALECT_NTLM0_12) {
if (wc != 17)
break;
md_get_uint8(mdp, &sp->sv_sm);
md_get_uint16le(mdp, &sp->sv_maxmux);
md_get_uint16le(mdp, &sp->sv_maxvcs);
md_get_uint32le(mdp, &sp->sv_maxtx);
md_get_uint32le(mdp, &sp->sv_maxraw);
md_get_uint32le(mdp, &sp->sv_skey);
md_get_uint32le(mdp, &sp->sv_caps);
md_get_mem(mdp, stime, 8, MB_MSYSTEM);
md_get_uint16le(mdp, (u_int16_t*)&sp->sv_tz);
md_get_uint8(mdp, &sblen);
if (sblen && (sp->sv_sm & SMB_SM_ENCRYPT)) {
if (sblen != SMB_MAXCHALLENGELEN) {
SMBERROR("Unexpected length of security blob (%d)\n", sblen);
break;
}
error = md_get_uint16(mdp, &bc);
if (error)
break;
if (sp->sv_caps & SMB_CAP_EXT_SECURITY)
md_get_mem(mdp, NULL, 16, MB_MSYSTEM);
error = md_get_mem(mdp, vcp->vc_ch, sblen, MB_MSYSTEM);
if (error)
break;
vcp->vc_chlen = sblen;
vcp->obj.co_flags |= SMBV_ENCRYPT;
}
vcp->vc_hflags2 |= SMB_FLAGS2_KNOWS_LONG_NAMES;
if (dp->d_id == SMB_DIALECT_NTLM0_12 &&
sp->sv_maxtx < 4096 &&
(sp->sv_caps & SMB_CAP_NT_SMBS) == 0) {
vcp->obj.co_flags |= SMBV_WIN95;
SMBSDEBUG("Win95 detected\n");
}
} else if (dp->d_id > SMB_DIALECT_CORE) {
md_get_uint16le(mdp, &tw);
sp->sv_sm = tw;
md_get_uint16le(mdp, &tw);
sp->sv_maxtx = tw;
md_get_uint16le(mdp, &sp->sv_maxmux);
md_get_uint16le(mdp, &sp->sv_maxvcs);
md_get_uint16le(mdp, &tw); /* rawmode */
md_get_uint32le(mdp, &sp->sv_skey);
if (wc == 13) { /* >= LANMAN1 */
md_get_uint16(mdp, &tw); /* time */
md_get_uint16(mdp, &tw1); /* date */
md_get_uint16le(mdp, (u_int16_t*)&sp->sv_tz);
md_get_uint16le(mdp, &swlen);
if (swlen > SMB_MAXCHALLENGELEN)
break;
md_get_uint16(mdp, NULL); /* mbz */
if (md_get_uint16(mdp, &bc) != 0)
break;
if (bc < swlen)
break;
if (swlen && (sp->sv_sm & SMB_SM_ENCRYPT)) {
error = md_get_mem(mdp, vcp->vc_ch, swlen, MB_MSYSTEM);
if (error)
break;
vcp->vc_chlen = swlen;
vcp->obj.co_flags |= SMBV_ENCRYPT;
}
}
vcp->vc_hflags2 |= SMB_FLAGS2_KNOWS_LONG_NAMES;
} else { /* an old CORE protocol */
sp->sv_maxmux = 1;
}
error = 0;
} while (0);
if (error == 0) {
vcp->vc_maxvcs = sp->sv_maxvcs;
if (vcp->vc_maxvcs <= 1) {
if (vcp->vc_maxvcs == 0)
vcp->vc_maxvcs = 1;
}
if (sp->sv_maxtx <= 0 || sp->sv_maxtx > 0xffff)
sp->sv_maxtx = 1024;
SMB_TRAN_GETPARAM(vcp, SMBTP_SNDSZ, &maxqsz);
vcp->vc_txmax = min(sp->sv_maxtx, maxqsz);
SMBSDEBUG("TZ = %d\n", sp->sv_tz);
SMBSDEBUG("CAPS = %x\n", sp->sv_caps);
SMBSDEBUG("MAXMUX = %d\n", sp->sv_maxmux);
SMBSDEBUG("MAXVCS = %d\n", sp->sv_maxvcs);
SMBSDEBUG("MAXRAW = %d\n", sp->sv_maxraw);
SMBSDEBUG("MAXTX = %d\n", sp->sv_maxtx);
}
bad:
smb_rq_done(rqp);
return error;
}
int
smb_smb_ssnsetup(struct smb_vc *vcp, struct smb_cred *scred)
{
struct smb_rq *rqp;
struct mbchain *mbp;
/* u_int8_t wc;
u_int16_t tw, tw1;*/
smb_uniptr unipp, ntencpass = NULL;
char *pp, *up, *pbuf, *encpass;
int error, plen, uniplen, ulen;
vcp->vc_smbuid = SMB_UID_UNKNOWN;
if (smb_smb_nomux(vcp, scred, __func__) != 0)
return EINVAL;
error = smb_rq_alloc(VCTOCP(vcp), SMB_COM_SESSION_SETUP_ANDX, scred, &rqp);
if (error)
return error;
pbuf = malloc(SMB_MAXPASSWORDLEN + 1, M_SMBTEMP, M_WAITOK);
encpass = malloc(24, M_SMBTEMP, M_WAITOK);
if (vcp->vc_sopt.sv_sm & SMB_SM_USER) {
iconv_convstr(vcp->vc_toupper, pbuf, smb_vc_getpass(vcp));
iconv_convstr(vcp->vc_toserver, pbuf, pbuf);
if (vcp->vc_sopt.sv_sm & SMB_SM_ENCRYPT) {
uniplen = plen = 24;
smb_encrypt(pbuf, vcp->vc_ch, encpass);
ntencpass = malloc(uniplen, M_SMBTEMP, M_WAITOK);
iconv_convstr(vcp->vc_toserver, pbuf, smb_vc_getpass(vcp));
smb_ntencrypt(pbuf, vcp->vc_ch, (u_char*)ntencpass);
pp = encpass;
unipp = ntencpass;
} else {
plen = strlen(pbuf) + 1;
pp = pbuf;
uniplen = plen * 2;
ntencpass = malloc(uniplen, M_SMBTEMP, M_WAITOK);
smb_strtouni(ntencpass, smb_vc_getpass(vcp));
plen--;
uniplen = 0/*-= 2*/;
unipp = ntencpass;
}
} else {
/*
* In the share security mode password will be used
* only in the tree authentication
*/
pp = "";
plen = 1;
unipp = &smb_unieol;
uniplen = sizeof(smb_unieol);
}
smb_rq_wstart(rqp);
mbp = &rqp->sr_rq;
up = vcp->vc_username;
ulen = strlen(up) + 1;
mb_put_uint8(mbp, 0xff);
mb_put_uint8(mbp, 0);
mb_put_uint16le(mbp, 0);
mb_put_uint16le(mbp, vcp->vc_sopt.sv_maxtx);
mb_put_uint16le(mbp, vcp->vc_sopt.sv_maxmux);
mb_put_uint16le(mbp, vcp->vc_number);
mb_put_uint32le(mbp, vcp->vc_sopt.sv_skey);
mb_put_uint16le(mbp, plen);
if (SMB_DIALECT(vcp) < SMB_DIALECT_NTLM0_12) {
mb_put_uint32le(mbp, 0);
smb_rq_wend(rqp);
smb_rq_bstart(rqp);
mb_put_mem(mbp, pp, plen, MB_MSYSTEM);
smb_put_dstring(mbp, vcp, up, SMB_CS_NONE);
} else {
mb_put_uint16le(mbp, uniplen);
mb_put_uint32le(mbp, 0); /* reserved */
mb_put_uint32le(mbp, 0); /* my caps */
smb_rq_wend(rqp);
smb_rq_bstart(rqp);
mb_put_mem(mbp, pp, plen, MB_MSYSTEM);
mb_put_mem(mbp, (caddr_t)unipp, uniplen, MB_MSYSTEM);
smb_put_dstring(mbp, vcp, up, SMB_CS_NONE); /* AccountName */
smb_put_dstring(mbp, vcp, vcp->vc_domain, SMB_CS_NONE); /* PrimaryDomain */
smb_put_dstring(mbp, vcp, "FreeBSD", SMB_CS_NONE); /* Client's OS */
smb_put_dstring(mbp, vcp, "NETSMB", SMB_CS_NONE); /* Client name */
}
smb_rq_bend(rqp);
if (ntencpass)
free(ntencpass, M_SMBTEMP);
error = smb_rq_simple(rqp);
SMBSDEBUG("%d\n", error);
if (error) {
if (rqp->sr_errclass == ERRDOS && rqp->sr_serror == ERRnoaccess)
error = EAUTH;
goto bad;
}
vcp->vc_smbuid = rqp->sr_rpuid;
bad:
free(encpass, M_SMBTEMP);
free(pbuf, M_SMBTEMP);
smb_rq_done(rqp);
return error;
}
int
smb_smb_ssnclose(struct smb_vc *vcp, struct smb_cred *scred)
{
struct smb_rq *rqp;
struct mbchain *mbp;
int error;
if (vcp->vc_smbuid == SMB_UID_UNKNOWN)
return 0;
if (smb_smb_nomux(vcp, scred, __func__) != 0)
return EINVAL;
error = smb_rq_alloc(VCTOCP(vcp), SMB_COM_LOGOFF_ANDX, scred, &rqp);
if (error)
return error;
mbp = &rqp->sr_rq;
smb_rq_wstart(rqp);
mb_put_uint8(mbp, 0xff);
mb_put_uint8(mbp, 0);
mb_put_uint16le(mbp, 0);
smb_rq_wend(rqp);
smb_rq_bstart(rqp);
smb_rq_bend(rqp);
error = smb_rq_simple(rqp);
SMBSDEBUG("%d\n", error);
smb_rq_done(rqp);
return error;
}
static char smb_any_share[] = "?????";
static char *
smb_share_typename(int stype)
{
char *pp;
switch (stype) {
case SMB_ST_DISK:
pp = "A:";
break;
case SMB_ST_PRINTER:
pp = smb_any_share; /* can't use LPT: here... */
break;
case SMB_ST_PIPE:
pp = "IPC";
break;
case SMB_ST_COMM:
pp = "COMM";
break;
case SMB_ST_ANY:
default:
pp = smb_any_share;
break;
}
return pp;
}
int
smb_smb_treeconnect(struct smb_share *ssp, struct smb_cred *scred)
{
struct smb_vc *vcp;
struct smb_rq rq, *rqp = &rq;
struct mbchain *mbp;
char *pp, *pbuf, *encpass;
int error, plen, caseopt;
ssp->ss_tid = SMB_TID_UNKNOWN;
error = smb_rq_alloc(SSTOCP(ssp), SMB_COM_TREE_CONNECT_ANDX, scred, &rqp);
if (error)
return error;
vcp = rqp->sr_vc;
caseopt = SMB_CS_NONE;
if (vcp->vc_sopt.sv_sm & SMB_SM_USER) {
plen = 1;
pp = "";
pbuf = NULL;
encpass = NULL;
} else {
pbuf = malloc(SMB_MAXPASSWORDLEN + 1, M_SMBTEMP, M_WAITOK);
encpass = malloc(24, M_SMBTEMP, M_WAITOK);
iconv_convstr(vcp->vc_toupper, pbuf, smb_share_getpass(ssp));
iconv_convstr(vcp->vc_toserver, pbuf, pbuf);
if (vcp->vc_sopt.sv_sm & SMB_SM_ENCRYPT) {
plen = 24;
smb_encrypt(pbuf, vcp->vc_ch, encpass);
pp = encpass;
} else {
plen = strlen(pbuf) + 1;
pp = pbuf;
}
}
mbp = &rqp->sr_rq;
smb_rq_wstart(rqp);
mb_put_uint8(mbp, 0xff);
mb_put_uint8(mbp, 0);
mb_put_uint16le(mbp, 0);
mb_put_uint16le(mbp, 0); /* Flags */
mb_put_uint16le(mbp, plen);
smb_rq_wend(rqp);
smb_rq_bstart(rqp);
mb_put_mem(mbp, pp, plen, MB_MSYSTEM);
smb_put_dmem(mbp, vcp, "\\\\", 2, caseopt);
pp = vcp->vc_srvname;
smb_put_dmem(mbp, vcp, pp, strlen(pp), caseopt);
smb_put_dmem(mbp, vcp, "\\", 1, caseopt);
pp = ssp->ss_name;
smb_put_dstring(mbp, vcp, pp, caseopt);
pp = smb_share_typename(ssp->ss_type);
smb_put_dstring(mbp, vcp, pp, caseopt);
smb_rq_bend(rqp);
error = smb_rq_simple(rqp);
SMBSDEBUG("%d\n", error);
if (error)
goto bad;
ssp->ss_tid = rqp->sr_rptid;
ssp->ss_vcgenid = vcp->vc_genid;
ssp->ss_flags |= SMBS_CONNECTED;
bad:
if (encpass)
free(encpass, M_SMBTEMP);
if (pbuf)
free(pbuf, M_SMBTEMP);
smb_rq_done(rqp);
return error;
}
int
smb_smb_treedisconnect(struct smb_share *ssp, struct smb_cred *scred)
{
struct smb_rq *rqp;
struct mbchain *mbp;
int error;
if (ssp->ss_tid == SMB_TID_UNKNOWN)
return 0;
error = smb_rq_alloc(SSTOCP(ssp), SMB_COM_TREE_DISCONNECT, scred, &rqp);
if (error)
return error;
mbp = &rqp->sr_rq;
smb_rq_wstart(rqp);
smb_rq_wend(rqp);
smb_rq_bstart(rqp);
smb_rq_bend(rqp);
error = smb_rq_simple(rqp);
SMBSDEBUG("%d\n", error);
smb_rq_done(rqp);
ssp->ss_tid = SMB_TID_UNKNOWN;
return error;
}
static __inline int
smb_smb_read(struct smb_share *ssp, u_int16_t fid,
int *len, int *rresid, struct uio *uio, struct smb_cred *scred)
{
struct smb_rq *rqp;
struct mbchain *mbp;
struct mdchain *mdp;
u_int16_t resid, bc;
u_int8_t wc;
int error, rlen, blksz;
error = smb_rq_alloc(SSTOCP(ssp), SMB_COM_READ, scred, &rqp);
if (error)
return error;
blksz = SSTOVC(ssp)->vc_txmax - SMB_HDRLEN - 16;
rlen = *len = min(blksz, *len);
smb_rq_getrequest(rqp, &mbp);
smb_rq_wstart(rqp);
mb_put_mem(mbp, (caddr_t)&fid, sizeof(fid), MB_MSYSTEM);
mb_put_uint16le(mbp, rlen);
mb_put_uint32le(mbp, uio->uio_offset);
mb_put_uint16le(mbp, min(uio->uio_resid, 0xffff));
smb_rq_wend(rqp);
smb_rq_bstart(rqp);
smb_rq_bend(rqp);
do {
error = smb_rq_simple(rqp);
if (error)
break;
smb_rq_getreply(rqp, &mdp);
md_get_uint8(mdp, &wc);
if (wc != 5) {
error = EBADRPC;
break;
}
md_get_uint16le(mdp, &resid);
md_get_mem(mdp, NULL, 4 * 2, MB_MSYSTEM);
md_get_uint16le(mdp, &bc);
md_get_uint8(mdp, NULL); /* ignore buffer type */
md_get_uint16le(mdp, &resid);
if (resid == 0) {
*rresid = resid;
break;
}
error = md_get_uio(mdp, uio, resid);
if (error)
break;
*rresid = resid;
} while(0);
smb_rq_done(rqp);
return error;
}
int
smb_read(struct smb_share *ssp, u_int16_t fid, struct uio *uio,
struct smb_cred *scred)
{
int tsize, len, resid;
int error = 0;
tsize = uio->uio_resid;
while (tsize > 0) {
len = tsize;
error = smb_smb_read(ssp, fid, &len, &resid, uio, scred);
if (error)
break;
tsize -= resid;
if (resid < len)
break;
}
return error;
}
static __inline int
smb_smb_write(struct smb_share *ssp, u_int16_t fid, int *len, int *rresid,
struct uio *uio, struct smb_cred *scred)
{
struct smb_rq *rqp;
struct mbchain *mbp;
struct mdchain *mdp;
u_int16_t resid;
u_int8_t wc;
int error, blksz;
blksz = SSTOVC(ssp)->vc_txmax - SMB_HDRLEN - 16;
if (blksz > 0xffff)
blksz = 0xffff;
resid = *len = min(blksz, *len);
error = smb_rq_alloc(SSTOCP(ssp), SMB_COM_WRITE, scred, &rqp);
if (error)
return error;
smb_rq_getrequest(rqp, &mbp);
smb_rq_wstart(rqp);
mb_put_mem(mbp, (caddr_t)&fid, sizeof(fid), MB_MSYSTEM);
mb_put_uint16le(mbp, resid);
mb_put_uint32le(mbp, uio->uio_offset);
mb_put_uint16le(mbp, min(uio->uio_resid, 0xffff));
smb_rq_wend(rqp);
smb_rq_bstart(rqp);
mb_put_uint8(mbp, SMB_DT_DATA);
mb_put_uint16le(mbp, resid);
do {
error = mb_put_uio(mbp, uio, resid);
if (error)
break;
smb_rq_bend(rqp);
error = smb_rq_simple(rqp);
if (error)
break;
smb_rq_getreply(rqp, &mdp);
md_get_uint8(mdp, &wc);
if (wc != 1) {
error = EBADRPC;
break;
}
md_get_uint16le(mdp, &resid);
*rresid = resid;
} while(0);
smb_rq_done(rqp);
return error;
}
int
smb_write(struct smb_share *ssp, u_int16_t fid, struct uio *uio,
struct smb_cred *scred)
{
int error = 0, len, tsize, resid;
struct uio olduio;
/*
* review: manage iov more precisely
*/
if (uio->uio_iovcnt != 1) {
SMBERROR("can't handle iovcnt > 1\n");
return EIO;
}
tsize = uio->uio_resid;
olduio = *uio;
while (tsize > 0) {
len = tsize;
error = smb_smb_write(ssp, fid, &len, &resid, uio, scred);
if (error)
break;
if (resid < len) {
error = EIO;
break;
}
tsize -= resid;
}
if (error) {
*uio = olduio;
}
return error;
}
int
smb_smb_echo(struct smb_vc *vcp, struct smb_cred *scred)
{
struct smb_rq *rqp;
struct mbchain *mbp;
int error;
error = smb_rq_alloc(VCTOCP(vcp), SMB_COM_ECHO, scred, &rqp);
if (error)
return error;
mbp = &rqp->sr_rq;
smb_rq_wstart(rqp);
mb_put_uint16le(mbp, 1);
smb_rq_wend(rqp);
smb_rq_bstart(rqp);
mb_put_uint32le(mbp, 0);
smb_rq_bend(rqp);
error = smb_rq_simple(rqp);
SMBSDEBUG("%d\n", error);
smb_rq_done(rqp);
return error;
}
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