2005-01-07 01:45:51 +00:00
|
|
|
/*-
|
2023-05-10 15:40:58 +00:00
|
|
|
* SPDX-License-Identifier: BSD-2-Clause
|
2017-11-27 15:23:17 +00:00
|
|
|
*
|
2010-04-07 16:50:38 +00:00
|
|
|
* Copyright (c) 2000-2001 Boris Popov
|
2001-04-10 07:59:06 +00:00
|
|
|
* 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.
|
|
|
|
*
|
|
|
|
* 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.
|
|
|
|
*/
|
2003-06-11 05:37:42 +00:00
|
|
|
|
|
|
|
#include <sys/cdefs.h>
|
2001-04-10 07:59:06 +00:00
|
|
|
#include <sys/param.h>
|
|
|
|
#include <sys/systm.h>
|
2002-04-26 22:48:23 +00:00
|
|
|
#include <sys/endian.h>
|
2001-04-10 07:59:06 +00:00
|
|
|
#include <sys/kernel.h>
|
|
|
|
#include <sys/malloc.h>
|
2004-05-30 20:27:19 +00:00
|
|
|
#include <sys/module.h>
|
2001-04-10 07:59:06 +00:00
|
|
|
#include <sys/proc.h>
|
|
|
|
#include <sys/lock.h>
|
|
|
|
#include <sys/sysctl.h>
|
|
|
|
#include <sys/socket.h>
|
|
|
|
#include <sys/socketvar.h>
|
|
|
|
#include <sys/mbuf.h>
|
|
|
|
|
|
|
|
#include <netsmb/smb.h>
|
|
|
|
#include <netsmb/smb_conn.h>
|
|
|
|
#include <netsmb/smb_rq.h>
|
|
|
|
#include <netsmb/smb_subr.h>
|
|
|
|
#include <netsmb/smb_tran.h>
|
|
|
|
|
2011-11-07 06:44:47 +00:00
|
|
|
static MALLOC_DEFINE(M_SMBRQ, "SMBRQ", "SMB request");
|
2001-04-10 07:59:06 +00:00
|
|
|
|
|
|
|
MODULE_DEPEND(netsmb, libmchain, 1, 1, 1);
|
|
|
|
|
|
|
|
static int smb_rq_reply(struct smb_rq *rqp);
|
|
|
|
static int smb_rq_enqueue(struct smb_rq *rqp);
|
|
|
|
static int smb_rq_getenv(struct smb_connobj *layer,
|
|
|
|
struct smb_vc **vcpp, struct smb_share **sspp);
|
|
|
|
static int smb_rq_new(struct smb_rq *rqp, u_char cmd);
|
|
|
|
static int smb_t2_reply(struct smb_t2rq *t2p);
|
|
|
|
|
|
|
|
int
|
|
|
|
smb_rq_alloc(struct smb_connobj *layer, u_char cmd, struct smb_cred *scred,
|
|
|
|
struct smb_rq **rqpp)
|
|
|
|
{
|
|
|
|
struct smb_rq *rqp;
|
|
|
|
int error;
|
|
|
|
|
2008-10-23 15:53:51 +00:00
|
|
|
rqp = malloc(sizeof(*rqp), M_SMBRQ, M_WAITOK);
|
2001-04-10 07:59:06 +00:00
|
|
|
if (rqp == NULL)
|
|
|
|
return ENOMEM;
|
|
|
|
error = smb_rq_init(rqp, layer, cmd, scred);
|
|
|
|
rqp->sr_flags |= SMBR_ALLOCED;
|
|
|
|
if (error) {
|
|
|
|
smb_rq_done(rqp);
|
|
|
|
return error;
|
|
|
|
}
|
|
|
|
*rqpp = rqp;
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
static char tzero[12];
|
|
|
|
|
|
|
|
int
|
|
|
|
smb_rq_init(struct smb_rq *rqp, struct smb_connobj *layer, u_char cmd,
|
|
|
|
struct smb_cred *scred)
|
|
|
|
{
|
|
|
|
int error;
|
|
|
|
|
|
|
|
bzero(rqp, sizeof(*rqp));
|
|
|
|
smb_sl_init(&rqp->sr_slock, "srslock");
|
|
|
|
error = smb_rq_getenv(layer, &rqp->sr_vc, &rqp->sr_share);
|
|
|
|
if (error)
|
|
|
|
return error;
|
|
|
|
error = smb_vc_access(rqp->sr_vc, scred, SMBM_EXEC);
|
|
|
|
if (error)
|
|
|
|
return error;
|
|
|
|
if (rqp->sr_share) {
|
|
|
|
error = smb_share_access(rqp->sr_share, scred, SMBM_EXEC);
|
|
|
|
if (error)
|
|
|
|
return error;
|
|
|
|
}
|
|
|
|
rqp->sr_cred = scred;
|
|
|
|
rqp->sr_mid = smb_vc_nextmid(rqp->sr_vc);
|
|
|
|
return smb_rq_new(rqp, cmd);
|
|
|
|
}
|
|
|
|
|
|
|
|
static int
|
|
|
|
smb_rq_new(struct smb_rq *rqp, u_char cmd)
|
|
|
|
{
|
|
|
|
struct smb_vc *vcp = rqp->sr_vc;
|
|
|
|
struct mbchain *mbp = &rqp->sr_rq;
|
|
|
|
int error;
|
2004-01-02 22:38:42 +00:00
|
|
|
u_int16_t flags2;
|
2001-04-10 07:59:06 +00:00
|
|
|
|
|
|
|
rqp->sr_sendcnt = 0;
|
|
|
|
mb_done(mbp);
|
|
|
|
md_done(&rqp->sr_rp);
|
|
|
|
error = mb_init(mbp);
|
|
|
|
if (error)
|
|
|
|
return error;
|
|
|
|
mb_put_mem(mbp, SMB_SIGNATURE, SMB_SIGLEN, MB_MSYSTEM);
|
|
|
|
mb_put_uint8(mbp, cmd);
|
|
|
|
mb_put_uint32le(mbp, 0); /* DosError */
|
|
|
|
mb_put_uint8(mbp, vcp->vc_hflags);
|
2004-01-02 22:38:42 +00:00
|
|
|
flags2 = vcp->vc_hflags2;
|
2002-09-16 09:51:58 +00:00
|
|
|
if (cmd == SMB_COM_TRANSACTION || cmd == SMB_COM_TRANSACTION_SECONDARY)
|
2004-01-02 22:38:42 +00:00
|
|
|
flags2 &= ~SMB_FLAGS2_UNICODE;
|
|
|
|
if (cmd == SMB_COM_NEGOTIATE)
|
|
|
|
flags2 &= ~SMB_FLAGS2_SECURITY_SIGNATURE;
|
|
|
|
mb_put_uint16le(mbp, flags2);
|
|
|
|
if ((flags2 & SMB_FLAGS2_SECURITY_SIGNATURE) == 0) {
|
|
|
|
mb_put_mem(mbp, tzero, 12, MB_MSYSTEM);
|
|
|
|
rqp->sr_rqsig = NULL;
|
|
|
|
} else {
|
|
|
|
mb_put_uint16le(mbp, 0 /*scred->sc_p->p_pid >> 16*/);
|
|
|
|
rqp->sr_rqsig = (u_int8_t *)mb_reserve(mbp, 8);
|
|
|
|
mb_put_uint16le(mbp, 0);
|
|
|
|
}
|
2006-08-22 03:05:51 +00:00
|
|
|
rqp->sr_rqtid = mb_reserve(mbp, sizeof(u_int16_t));
|
2001-04-10 07:59:06 +00:00
|
|
|
mb_put_uint16le(mbp, 1 /*scred->sc_p->p_pid & 0xffff*/);
|
2006-08-22 03:05:51 +00:00
|
|
|
rqp->sr_rquid = mb_reserve(mbp, sizeof(u_int16_t));
|
2001-04-10 07:59:06 +00:00
|
|
|
mb_put_uint16le(mbp, rqp->sr_mid);
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
void
|
|
|
|
smb_rq_done(struct smb_rq *rqp)
|
|
|
|
{
|
|
|
|
mb_done(&rqp->sr_rq);
|
|
|
|
md_done(&rqp->sr_rp);
|
|
|
|
smb_sl_destroy(&rqp->sr_slock);
|
|
|
|
if (rqp->sr_flags & SMBR_ALLOCED)
|
|
|
|
free(rqp, M_SMBRQ);
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Simple request-reply exchange
|
|
|
|
*/
|
|
|
|
int
|
|
|
|
smb_rq_simple(struct smb_rq *rqp)
|
|
|
|
{
|
|
|
|
struct smb_vc *vcp = rqp->sr_vc;
|
|
|
|
int error = EINVAL, i;
|
|
|
|
|
|
|
|
for (i = 0; i < SMB_MAXRCN; i++) {
|
|
|
|
rqp->sr_flags &= ~SMBR_RESTART;
|
|
|
|
rqp->sr_timo = vcp->vc_timo;
|
|
|
|
rqp->sr_state = SMBRQ_NOTSENT;
|
|
|
|
error = smb_rq_enqueue(rqp);
|
|
|
|
if (error)
|
|
|
|
return error;
|
|
|
|
error = smb_rq_reply(rqp);
|
|
|
|
if (error == 0)
|
|
|
|
break;
|
|
|
|
if ((rqp->sr_flags & (SMBR_RESTART | SMBR_NORESTART)) != SMBR_RESTART)
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
return error;
|
|
|
|
}
|
|
|
|
|
|
|
|
static int
|
|
|
|
smb_rq_enqueue(struct smb_rq *rqp)
|
|
|
|
{
|
|
|
|
struct smb_share *ssp = rqp->sr_share;
|
|
|
|
int error;
|
|
|
|
|
|
|
|
if (ssp == NULL || rqp->sr_cred == &rqp->sr_vc->vc_iod->iod_scred) {
|
|
|
|
return smb_iod_addrq(rqp);
|
|
|
|
}
|
|
|
|
for (;;) {
|
|
|
|
SMBS_ST_LOCK(ssp);
|
|
|
|
if (ssp->ss_flags & SMBS_RECONNECTING) {
|
|
|
|
msleep(&ssp->ss_vcgenid, SMBS_ST_LOCKPTR(ssp),
|
|
|
|
PWAIT | PDROP, "90trcn", hz);
|
2003-03-31 22:49:17 +00:00
|
|
|
if (smb_td_intr(rqp->sr_cred->scr_td))
|
2001-04-10 07:59:06 +00:00
|
|
|
return EINTR;
|
|
|
|
continue;
|
|
|
|
}
|
|
|
|
if (smb_share_valid(ssp) || (ssp->ss_flags & SMBS_CONNECTED) == 0) {
|
|
|
|
SMBS_ST_UNLOCK(ssp);
|
|
|
|
} else {
|
|
|
|
SMBS_ST_UNLOCK(ssp);
|
|
|
|
error = smb_iod_request(rqp->sr_vc->vc_iod,
|
|
|
|
SMBIOD_EV_TREECONNECT | SMBIOD_EV_SYNC, ssp);
|
|
|
|
if (error)
|
|
|
|
return error;
|
|
|
|
}
|
|
|
|
error = smb_iod_addrq(rqp);
|
|
|
|
if (error != EXDEV)
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
return error;
|
|
|
|
}
|
|
|
|
|
|
|
|
void
|
|
|
|
smb_rq_wstart(struct smb_rq *rqp)
|
|
|
|
{
|
|
|
|
rqp->sr_wcount = mb_reserve(&rqp->sr_rq, sizeof(u_int8_t));
|
|
|
|
rqp->sr_rq.mb_count = 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
void
|
|
|
|
smb_rq_wend(struct smb_rq *rqp)
|
|
|
|
{
|
|
|
|
if (rqp->sr_wcount == NULL) {
|
|
|
|
SMBERROR("no wcount\n"); /* actually panic */
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
if (rqp->sr_rq.mb_count & 1)
|
|
|
|
SMBERROR("odd word count\n");
|
|
|
|
*rqp->sr_wcount = rqp->sr_rq.mb_count / 2;
|
|
|
|
}
|
|
|
|
|
|
|
|
void
|
|
|
|
smb_rq_bstart(struct smb_rq *rqp)
|
|
|
|
{
|
2006-08-22 03:05:51 +00:00
|
|
|
rqp->sr_bcount = mb_reserve(&rqp->sr_rq, sizeof(u_short));
|
2001-04-10 07:59:06 +00:00
|
|
|
rqp->sr_rq.mb_count = 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
void
|
|
|
|
smb_rq_bend(struct smb_rq *rqp)
|
|
|
|
{
|
|
|
|
int bcnt;
|
|
|
|
|
|
|
|
if (rqp->sr_bcount == NULL) {
|
|
|
|
SMBERROR("no bcount\n"); /* actually panic */
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
bcnt = rqp->sr_rq.mb_count;
|
|
|
|
if (bcnt > 0xffff)
|
|
|
|
SMBERROR("byte count too large (%d)\n", bcnt);
|
2006-08-22 03:05:51 +00:00
|
|
|
le16enc(rqp->sr_bcount, bcnt);
|
2001-04-10 07:59:06 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
int
|
|
|
|
smb_rq_intr(struct smb_rq *rqp)
|
|
|
|
{
|
|
|
|
if (rqp->sr_flags & SMBR_INTR)
|
|
|
|
return EINTR;
|
2003-03-31 22:49:17 +00:00
|
|
|
return smb_td_intr(rqp->sr_cred->scr_td);
|
2001-04-10 07:59:06 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
int
|
|
|
|
smb_rq_getrequest(struct smb_rq *rqp, struct mbchain **mbpp)
|
|
|
|
{
|
|
|
|
*mbpp = &rqp->sr_rq;
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
int
|
|
|
|
smb_rq_getreply(struct smb_rq *rqp, struct mdchain **mbpp)
|
|
|
|
{
|
|
|
|
*mbpp = &rqp->sr_rp;
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
static int
|
|
|
|
smb_rq_getenv(struct smb_connobj *layer,
|
|
|
|
struct smb_vc **vcpp, struct smb_share **sspp)
|
|
|
|
{
|
|
|
|
struct smb_vc *vcp = NULL;
|
|
|
|
struct smb_share *ssp = NULL;
|
|
|
|
struct smb_connobj *cp;
|
|
|
|
int error = 0;
|
|
|
|
|
|
|
|
switch (layer->co_level) {
|
|
|
|
case SMBL_VC:
|
|
|
|
vcp = CPTOVC(layer);
|
|
|
|
if (layer->co_parent == NULL) {
|
|
|
|
SMBERROR("zombie VC %s\n", vcp->vc_srvname);
|
|
|
|
error = EINVAL;
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
break;
|
|
|
|
case SMBL_SHARE:
|
|
|
|
ssp = CPTOSS(layer);
|
|
|
|
cp = layer->co_parent;
|
|
|
|
if (cp == NULL) {
|
|
|
|
SMBERROR("zombie share %s\n", ssp->ss_name);
|
|
|
|
error = EINVAL;
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
error = smb_rq_getenv(cp, &vcp, NULL);
|
|
|
|
if (error)
|
|
|
|
break;
|
|
|
|
break;
|
|
|
|
default:
|
|
|
|
SMBERROR("invalid layer %d passed\n", layer->co_level);
|
|
|
|
error = EINVAL;
|
|
|
|
}
|
|
|
|
if (vcpp)
|
|
|
|
*vcpp = vcp;
|
|
|
|
if (sspp)
|
|
|
|
*sspp = ssp;
|
|
|
|
return error;
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Wait for reply on the request
|
|
|
|
*/
|
|
|
|
static int
|
|
|
|
smb_rq_reply(struct smb_rq *rqp)
|
|
|
|
{
|
|
|
|
struct mdchain *mdp = &rqp->sr_rp;
|
|
|
|
u_int32_t tdw;
|
|
|
|
u_int8_t tb;
|
|
|
|
int error, rperror = 0;
|
|
|
|
|
|
|
|
error = smb_iod_waitrq(rqp);
|
|
|
|
if (error)
|
|
|
|
return error;
|
|
|
|
error = md_get_uint32(mdp, &tdw);
|
|
|
|
if (error)
|
|
|
|
return error;
|
|
|
|
error = md_get_uint8(mdp, &tb);
|
|
|
|
if (rqp->sr_vc->vc_hflags2 & SMB_FLAGS2_ERR_STATUS) {
|
|
|
|
error = md_get_uint32le(mdp, &rqp->sr_error);
|
|
|
|
} else {
|
|
|
|
error = md_get_uint8(mdp, &rqp->sr_errclass);
|
|
|
|
error = md_get_uint8(mdp, &tb);
|
|
|
|
error = md_get_uint16le(mdp, &rqp->sr_serror);
|
|
|
|
if (!error)
|
|
|
|
rperror = smb_maperror(rqp->sr_errclass, rqp->sr_serror);
|
|
|
|
}
|
|
|
|
error = md_get_uint8(mdp, &rqp->sr_rpflags);
|
|
|
|
error = md_get_uint16le(mdp, &rqp->sr_rpflags2);
|
|
|
|
|
|
|
|
error = md_get_uint32(mdp, &tdw);
|
|
|
|
error = md_get_uint32(mdp, &tdw);
|
|
|
|
error = md_get_uint32(mdp, &tdw);
|
|
|
|
|
|
|
|
error = md_get_uint16le(mdp, &rqp->sr_rptid);
|
|
|
|
error = md_get_uint16le(mdp, &rqp->sr_rppid);
|
|
|
|
error = md_get_uint16le(mdp, &rqp->sr_rpuid);
|
|
|
|
error = md_get_uint16le(mdp, &rqp->sr_rpmid);
|
|
|
|
|
2004-01-02 22:38:42 +00:00
|
|
|
if (error == 0 &&
|
|
|
|
(rqp->sr_vc->vc_hflags2 & SMB_FLAGS2_SECURITY_SIGNATURE))
|
|
|
|
error = smb_rq_verify(rqp);
|
|
|
|
|
2001-04-10 07:59:06 +00:00
|
|
|
SMBSDEBUG("M:%04x, P:%04x, U:%04x, T:%04x, E: %d:%d\n",
|
|
|
|
rqp->sr_rpmid, rqp->sr_rppid, rqp->sr_rpuid, rqp->sr_rptid,
|
|
|
|
rqp->sr_errclass, rqp->sr_serror);
|
|
|
|
return error ? error : rperror;
|
|
|
|
}
|
|
|
|
|
|
|
|
#define ALIGN4(a) (((a) + 3) & ~3)
|
|
|
|
|
|
|
|
/*
|
|
|
|
* TRANS2 request implementation
|
|
|
|
*/
|
|
|
|
int
|
|
|
|
smb_t2_alloc(struct smb_connobj *layer, u_short setup, struct smb_cred *scred,
|
|
|
|
struct smb_t2rq **t2pp)
|
|
|
|
{
|
|
|
|
struct smb_t2rq *t2p;
|
|
|
|
int error;
|
|
|
|
|
2008-10-23 15:53:51 +00:00
|
|
|
t2p = malloc(sizeof(*t2p), M_SMBRQ, M_WAITOK);
|
2001-04-10 07:59:06 +00:00
|
|
|
if (t2p == NULL)
|
|
|
|
return ENOMEM;
|
|
|
|
error = smb_t2_init(t2p, layer, setup, scred);
|
|
|
|
t2p->t2_flags |= SMBT2_ALLOCED;
|
|
|
|
if (error) {
|
|
|
|
smb_t2_done(t2p);
|
|
|
|
return error;
|
|
|
|
}
|
|
|
|
*t2pp = t2p;
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
int
|
|
|
|
smb_t2_init(struct smb_t2rq *t2p, struct smb_connobj *source, u_short setup,
|
|
|
|
struct smb_cred *scred)
|
|
|
|
{
|
|
|
|
int error;
|
|
|
|
|
|
|
|
bzero(t2p, sizeof(*t2p));
|
|
|
|
t2p->t2_source = source;
|
|
|
|
t2p->t2_setupcount = 1;
|
|
|
|
t2p->t2_setupdata = t2p->t2_setup;
|
|
|
|
t2p->t2_setup[0] = setup;
|
|
|
|
t2p->t2_fid = 0xffff;
|
|
|
|
t2p->t2_cred = scred;
|
|
|
|
error = smb_rq_getenv(source, &t2p->t2_vc, NULL);
|
|
|
|
if (error)
|
|
|
|
return error;
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
void
|
|
|
|
smb_t2_done(struct smb_t2rq *t2p)
|
|
|
|
{
|
|
|
|
mb_done(&t2p->t2_tparam);
|
|
|
|
mb_done(&t2p->t2_tdata);
|
|
|
|
md_done(&t2p->t2_rparam);
|
|
|
|
md_done(&t2p->t2_rdata);
|
|
|
|
if (t2p->t2_flags & SMBT2_ALLOCED)
|
|
|
|
free(t2p, M_SMBRQ);
|
|
|
|
}
|
|
|
|
|
|
|
|
static int
|
|
|
|
smb_t2_placedata(struct mbuf *mtop, u_int16_t offset, u_int16_t count,
|
|
|
|
struct mdchain *mdp)
|
|
|
|
{
|
2023-08-04 23:42:41 +00:00
|
|
|
struct mbuf *m0;
|
2001-04-10 07:59:06 +00:00
|
|
|
int len;
|
|
|
|
|
2023-08-04 23:42:41 +00:00
|
|
|
len = m_length(mtop, NULL);
|
|
|
|
if (offset + count > len)
|
|
|
|
return (EPROTO);
|
|
|
|
|
2012-12-05 08:04:20 +00:00
|
|
|
m0 = m_split(mtop, offset, M_WAITOK);
|
2023-08-04 23:42:41 +00:00
|
|
|
if (len != offset + count) {
|
|
|
|
len -= offset + count;
|
|
|
|
m_adj(m0, -len);
|
|
|
|
}
|
2001-04-10 07:59:06 +00:00
|
|
|
if (mdp->md_top == NULL) {
|
|
|
|
md_initm(mdp, m0);
|
|
|
|
} else
|
|
|
|
m_cat(mdp->md_top, m0);
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
static int
|
|
|
|
smb_t2_reply(struct smb_t2rq *t2p)
|
|
|
|
{
|
|
|
|
struct mdchain *mdp;
|
|
|
|
struct smb_rq *rqp = t2p->t2_rq;
|
|
|
|
int error, totpgot, totdgot;
|
|
|
|
u_int16_t totpcount, totdcount, pcount, poff, doff, pdisp, ddisp;
|
|
|
|
u_int16_t tmp, bc, dcount;
|
|
|
|
u_int8_t wc;
|
|
|
|
|
|
|
|
error = smb_rq_reply(rqp);
|
|
|
|
if (error)
|
|
|
|
return error;
|
|
|
|
if ((t2p->t2_flags & SMBT2_ALLSENT) == 0) {
|
|
|
|
/*
|
|
|
|
* this is an interim response, ignore it.
|
|
|
|
*/
|
|
|
|
SMBRQ_SLOCK(rqp);
|
|
|
|
md_next_record(&rqp->sr_rp);
|
|
|
|
SMBRQ_SUNLOCK(rqp);
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
/*
|
2001-12-31 19:29:43 +00:00
|
|
|
* Now we have to get all subsequent responses. The CIFS specification
|
|
|
|
* says that they can be disordered which is weird.
|
2001-04-10 07:59:06 +00:00
|
|
|
* TODO: timo
|
|
|
|
*/
|
|
|
|
totpgot = totdgot = 0;
|
|
|
|
totpcount = totdcount = 0xffff;
|
|
|
|
mdp = &rqp->sr_rp;
|
|
|
|
for (;;) {
|
|
|
|
m_dumpm(mdp->md_top);
|
|
|
|
if ((error = md_get_uint8(mdp, &wc)) != 0)
|
|
|
|
break;
|
|
|
|
if (wc < 10) {
|
|
|
|
error = ENOENT;
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
if ((error = md_get_uint16le(mdp, &tmp)) != 0)
|
|
|
|
break;
|
|
|
|
if (totpcount > tmp)
|
|
|
|
totpcount = tmp;
|
|
|
|
md_get_uint16le(mdp, &tmp);
|
|
|
|
if (totdcount > tmp)
|
|
|
|
totdcount = tmp;
|
|
|
|
if ((error = md_get_uint16le(mdp, &tmp)) != 0 || /* reserved */
|
|
|
|
(error = md_get_uint16le(mdp, &pcount)) != 0 ||
|
|
|
|
(error = md_get_uint16le(mdp, &poff)) != 0 ||
|
|
|
|
(error = md_get_uint16le(mdp, &pdisp)) != 0)
|
|
|
|
break;
|
|
|
|
if (pcount != 0 && pdisp != totpgot) {
|
2001-12-31 19:29:43 +00:00
|
|
|
SMBERROR("Can't handle disordered parameters %d:%d\n",
|
2001-04-10 07:59:06 +00:00
|
|
|
pdisp, totpgot);
|
|
|
|
error = EINVAL;
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
if ((error = md_get_uint16le(mdp, &dcount)) != 0 ||
|
|
|
|
(error = md_get_uint16le(mdp, &doff)) != 0 ||
|
|
|
|
(error = md_get_uint16le(mdp, &ddisp)) != 0)
|
|
|
|
break;
|
|
|
|
if (dcount != 0 && ddisp != totdgot) {
|
2001-12-31 19:29:43 +00:00
|
|
|
SMBERROR("Can't handle disordered data\n");
|
2001-04-10 07:59:06 +00:00
|
|
|
error = EINVAL;
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
md_get_uint8(mdp, &wc);
|
|
|
|
md_get_uint8(mdp, NULL);
|
|
|
|
tmp = wc;
|
|
|
|
while (tmp--)
|
|
|
|
md_get_uint16(mdp, NULL);
|
|
|
|
if ((error = md_get_uint16le(mdp, &bc)) != 0)
|
|
|
|
break;
|
|
|
|
/* tmp = SMB_HDRLEN + 1 + 10 * 2 + 2 * wc + 2;*/
|
|
|
|
if (dcount) {
|
|
|
|
error = smb_t2_placedata(mdp->md_top, doff, dcount,
|
|
|
|
&t2p->t2_rdata);
|
|
|
|
if (error)
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
if (pcount) {
|
|
|
|
error = smb_t2_placedata(mdp->md_top, poff, pcount,
|
|
|
|
&t2p->t2_rparam);
|
|
|
|
if (error)
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
totpgot += pcount;
|
|
|
|
totdgot += dcount;
|
|
|
|
if (totpgot >= totpcount && totdgot >= totdcount) {
|
|
|
|
error = 0;
|
|
|
|
t2p->t2_flags |= SMBT2_ALLRECV;
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
/*
|
|
|
|
* We're done with this reply, look for the next one.
|
|
|
|
*/
|
|
|
|
SMBRQ_SLOCK(rqp);
|
|
|
|
md_next_record(&rqp->sr_rp);
|
|
|
|
SMBRQ_SUNLOCK(rqp);
|
|
|
|
error = smb_rq_reply(rqp);
|
|
|
|
if (error)
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
return error;
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Perform a full round of TRANS2 request
|
|
|
|
*/
|
|
|
|
static int
|
|
|
|
smb_t2_request_int(struct smb_t2rq *t2p)
|
|
|
|
{
|
|
|
|
struct smb_vc *vcp = t2p->t2_vc;
|
|
|
|
struct smb_cred *scred = t2p->t2_cred;
|
|
|
|
struct mbchain *mbp;
|
|
|
|
struct mdchain *mdp, mbparam, mbdata;
|
|
|
|
struct mbuf *m;
|
|
|
|
struct smb_rq *rqp;
|
|
|
|
int totpcount, leftpcount, totdcount, leftdcount, len, txmax, i;
|
|
|
|
int error, doff, poff, txdcount, txpcount, nmlen;
|
|
|
|
|
|
|
|
m = t2p->t2_tparam.mb_top;
|
|
|
|
if (m) {
|
|
|
|
md_initm(&mbparam, m); /* do not free it! */
|
|
|
|
totpcount = m_fixhdr(m);
|
|
|
|
if (totpcount > 0xffff) /* maxvalue for u_short */
|
|
|
|
return EINVAL;
|
|
|
|
} else
|
|
|
|
totpcount = 0;
|
|
|
|
m = t2p->t2_tdata.mb_top;
|
|
|
|
if (m) {
|
|
|
|
md_initm(&mbdata, m); /* do not free it! */
|
|
|
|
totdcount = m_fixhdr(m);
|
|
|
|
if (totdcount > 0xffff)
|
|
|
|
return EINVAL;
|
|
|
|
} else
|
|
|
|
totdcount = 0;
|
|
|
|
leftdcount = totdcount;
|
|
|
|
leftpcount = totpcount;
|
|
|
|
txmax = vcp->vc_txmax;
|
|
|
|
error = smb_rq_alloc(t2p->t2_source, t2p->t_name ?
|
|
|
|
SMB_COM_TRANSACTION : SMB_COM_TRANSACTION2, scred, &rqp);
|
|
|
|
if (error)
|
|
|
|
return error;
|
|
|
|
rqp->sr_flags |= SMBR_MULTIPACKET;
|
|
|
|
t2p->t2_rq = rqp;
|
2004-01-02 22:38:42 +00:00
|
|
|
rqp->sr_t2 = t2p;
|
2001-04-10 07:59:06 +00:00
|
|
|
mbp = &rqp->sr_rq;
|
|
|
|
smb_rq_wstart(rqp);
|
|
|
|
mb_put_uint16le(mbp, totpcount);
|
|
|
|
mb_put_uint16le(mbp, totdcount);
|
|
|
|
mb_put_uint16le(mbp, t2p->t2_maxpcount);
|
|
|
|
mb_put_uint16le(mbp, t2p->t2_maxdcount);
|
|
|
|
mb_put_uint8(mbp, t2p->t2_maxscount);
|
|
|
|
mb_put_uint8(mbp, 0); /* reserved */
|
|
|
|
mb_put_uint16le(mbp, 0); /* flags */
|
|
|
|
mb_put_uint32le(mbp, 0); /* Timeout */
|
|
|
|
mb_put_uint16le(mbp, 0); /* reserved 2 */
|
|
|
|
len = mb_fixhdr(mbp);
|
|
|
|
/*
|
|
|
|
* now we have known packet size as
|
|
|
|
* ALIGN4(len + 5 * 2 + setupcount * 2 + 2 + strlen(name) + 1),
|
|
|
|
* and need to decide which parts should go into the first request
|
|
|
|
*/
|
|
|
|
nmlen = t2p->t_name ? strlen(t2p->t_name) : 0;
|
|
|
|
len = ALIGN4(len + 5 * 2 + t2p->t2_setupcount * 2 + 2 + nmlen + 1);
|
|
|
|
if (len + leftpcount > txmax) {
|
|
|
|
txpcount = min(leftpcount, txmax - len);
|
|
|
|
poff = len;
|
|
|
|
txdcount = 0;
|
|
|
|
doff = 0;
|
|
|
|
} else {
|
|
|
|
txpcount = leftpcount;
|
|
|
|
poff = txpcount ? len : 0;
|
|
|
|
len = ALIGN4(len + txpcount);
|
|
|
|
txdcount = min(leftdcount, txmax - len);
|
|
|
|
doff = txdcount ? len : 0;
|
|
|
|
}
|
|
|
|
leftpcount -= txpcount;
|
|
|
|
leftdcount -= txdcount;
|
|
|
|
mb_put_uint16le(mbp, txpcount);
|
|
|
|
mb_put_uint16le(mbp, poff);
|
|
|
|
mb_put_uint16le(mbp, txdcount);
|
|
|
|
mb_put_uint16le(mbp, doff);
|
|
|
|
mb_put_uint8(mbp, t2p->t2_setupcount);
|
|
|
|
mb_put_uint8(mbp, 0);
|
|
|
|
for (i = 0; i < t2p->t2_setupcount; i++)
|
|
|
|
mb_put_uint16le(mbp, t2p->t2_setupdata[i]);
|
|
|
|
smb_rq_wend(rqp);
|
|
|
|
smb_rq_bstart(rqp);
|
|
|
|
/* TDUNICODE */
|
|
|
|
if (t2p->t_name)
|
|
|
|
mb_put_mem(mbp, t2p->t_name, nmlen, MB_MSYSTEM);
|
|
|
|
mb_put_uint8(mbp, 0); /* terminating zero */
|
|
|
|
len = mb_fixhdr(mbp);
|
|
|
|
if (txpcount) {
|
|
|
|
mb_put_mem(mbp, NULL, ALIGN4(len) - len, MB_MZERO);
|
|
|
|
error = md_get_mbuf(&mbparam, txpcount, &m);
|
|
|
|
SMBSDEBUG("%d:%d:%d\n", error, txpcount, txmax);
|
|
|
|
if (error)
|
|
|
|
goto freerq;
|
|
|
|
mb_put_mbuf(mbp, m);
|
|
|
|
}
|
|
|
|
len = mb_fixhdr(mbp);
|
|
|
|
if (txdcount) {
|
|
|
|
mb_put_mem(mbp, NULL, ALIGN4(len) - len, MB_MZERO);
|
|
|
|
error = md_get_mbuf(&mbdata, txdcount, &m);
|
|
|
|
if (error)
|
|
|
|
goto freerq;
|
|
|
|
mb_put_mbuf(mbp, m);
|
|
|
|
}
|
|
|
|
smb_rq_bend(rqp); /* incredible, but thats it... */
|
|
|
|
error = smb_rq_enqueue(rqp);
|
|
|
|
if (error)
|
|
|
|
goto freerq;
|
|
|
|
if (leftpcount == 0 && leftdcount == 0)
|
|
|
|
t2p->t2_flags |= SMBT2_ALLSENT;
|
|
|
|
error = smb_t2_reply(t2p);
|
|
|
|
if (error)
|
|
|
|
goto bad;
|
|
|
|
while (leftpcount || leftdcount) {
|
2004-01-02 22:38:42 +00:00
|
|
|
t2p->t2_flags |= SMBT2_SECONDARY;
|
2001-04-10 07:59:06 +00:00
|
|
|
error = smb_rq_new(rqp, t2p->t_name ?
|
|
|
|
SMB_COM_TRANSACTION_SECONDARY : SMB_COM_TRANSACTION2_SECONDARY);
|
|
|
|
if (error)
|
|
|
|
goto bad;
|
|
|
|
mbp = &rqp->sr_rq;
|
|
|
|
smb_rq_wstart(rqp);
|
|
|
|
mb_put_uint16le(mbp, totpcount);
|
|
|
|
mb_put_uint16le(mbp, totdcount);
|
|
|
|
len = mb_fixhdr(mbp);
|
|
|
|
/*
|
|
|
|
* now we have known packet size as
|
|
|
|
* ALIGN4(len + 7 * 2 + 2) for T2 request, and -2 for T one,
|
|
|
|
* and need to decide which parts should go into request
|
|
|
|
*/
|
|
|
|
len = ALIGN4(len + 6 * 2 + 2);
|
|
|
|
if (t2p->t_name == NULL)
|
|
|
|
len += 2;
|
|
|
|
if (len + leftpcount > txmax) {
|
|
|
|
txpcount = min(leftpcount, txmax - len);
|
|
|
|
poff = len;
|
|
|
|
txdcount = 0;
|
|
|
|
doff = 0;
|
|
|
|
} else {
|
|
|
|
txpcount = leftpcount;
|
|
|
|
poff = txpcount ? len : 0;
|
|
|
|
len = ALIGN4(len + txpcount);
|
|
|
|
txdcount = min(leftdcount, txmax - len);
|
|
|
|
doff = txdcount ? len : 0;
|
|
|
|
}
|
|
|
|
mb_put_uint16le(mbp, txpcount);
|
|
|
|
mb_put_uint16le(mbp, poff);
|
|
|
|
mb_put_uint16le(mbp, totpcount - leftpcount);
|
|
|
|
mb_put_uint16le(mbp, txdcount);
|
|
|
|
mb_put_uint16le(mbp, doff);
|
|
|
|
mb_put_uint16le(mbp, totdcount - leftdcount);
|
|
|
|
leftpcount -= txpcount;
|
|
|
|
leftdcount -= txdcount;
|
|
|
|
if (t2p->t_name == NULL)
|
|
|
|
mb_put_uint16le(mbp, t2p->t2_fid);
|
|
|
|
smb_rq_wend(rqp);
|
|
|
|
smb_rq_bstart(rqp);
|
|
|
|
mb_put_uint8(mbp, 0); /* name */
|
|
|
|
len = mb_fixhdr(mbp);
|
|
|
|
if (txpcount) {
|
|
|
|
mb_put_mem(mbp, NULL, ALIGN4(len) - len, MB_MZERO);
|
|
|
|
error = md_get_mbuf(&mbparam, txpcount, &m);
|
|
|
|
if (error)
|
|
|
|
goto bad;
|
|
|
|
mb_put_mbuf(mbp, m);
|
|
|
|
}
|
|
|
|
len = mb_fixhdr(mbp);
|
|
|
|
if (txdcount) {
|
|
|
|
mb_put_mem(mbp, NULL, ALIGN4(len) - len, MB_MZERO);
|
|
|
|
error = md_get_mbuf(&mbdata, txdcount, &m);
|
|
|
|
if (error)
|
|
|
|
goto bad;
|
|
|
|
mb_put_mbuf(mbp, m);
|
|
|
|
}
|
|
|
|
smb_rq_bend(rqp);
|
|
|
|
rqp->sr_state = SMBRQ_NOTSENT;
|
|
|
|
error = smb_iod_request(vcp->vc_iod, SMBIOD_EV_NEWRQ, NULL);
|
|
|
|
if (error)
|
|
|
|
goto bad;
|
|
|
|
} /* while left params or data */
|
|
|
|
t2p->t2_flags |= SMBT2_ALLSENT;
|
|
|
|
mdp = &t2p->t2_rdata;
|
|
|
|
if (mdp->md_top) {
|
|
|
|
m_fixhdr(mdp->md_top);
|
|
|
|
md_initm(mdp, mdp->md_top);
|
|
|
|
}
|
|
|
|
mdp = &t2p->t2_rparam;
|
|
|
|
if (mdp->md_top) {
|
|
|
|
m_fixhdr(mdp->md_top);
|
|
|
|
md_initm(mdp, mdp->md_top);
|
|
|
|
}
|
|
|
|
bad:
|
|
|
|
smb_iod_removerq(rqp);
|
|
|
|
freerq:
|
|
|
|
if (error) {
|
|
|
|
if (rqp->sr_flags & SMBR_RESTART)
|
|
|
|
t2p->t2_flags |= SMBT2_RESTART;
|
|
|
|
md_done(&t2p->t2_rparam);
|
|
|
|
md_done(&t2p->t2_rdata);
|
|
|
|
}
|
2021-05-26 13:57:38 +00:00
|
|
|
smb_rq_done(rqp);
|
2001-04-10 07:59:06 +00:00
|
|
|
return error;
|
|
|
|
}
|
|
|
|
|
|
|
|
int
|
|
|
|
smb_t2_request(struct smb_t2rq *t2p)
|
|
|
|
{
|
|
|
|
int error = EINVAL, i;
|
|
|
|
|
|
|
|
for (i = 0; i < SMB_MAXRCN; i++) {
|
|
|
|
t2p->t2_flags &= ~SMBR_RESTART;
|
|
|
|
error = smb_t2_request_int(t2p);
|
|
|
|
if (error == 0)
|
|
|
|
break;
|
|
|
|
if ((t2p->t2_flags & (SMBT2_RESTART | SMBT2_NORESTART)) != SMBT2_RESTART)
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
return error;
|
|
|
|
}
|