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Initial cut at the code that will do NT SMB calls. Not linked in, not

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compiled yet, just checked in for safe keeping :-).
Jeremy.
(This used to be commit 74565f0039)
This commit is contained in:
Jeremy Allison 1998-05-08 01:22:16 +00:00
parent a4cc363d3a
commit 4cc7a1b0ef
1 changed files with 225 additions and 0 deletions
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source3/smbd/nttrans.c Normal file
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/*
Unix SMB/Netbios implementation.
Version 1.9.
SMB NT transaction handling
Copyright (C) Jeremy Allison 1994-1998
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 2 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, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include "includes.h"
extern int DEBUGLEVEL;
extern int Protocol;
extern connection_struct Connections[];
extern files_struct Files[];
extern int Client;
extern int oplock_sock;
extern int smb_read_error;
extern int global_oplock_break;
/****************************************************************************
reply to an unsolicited SMBNTtranss - just ignore it!
****************************************************************************/
int reply_nttranss(char *inbuf,char *outbuf,int length,int bufsize)
{
DEBUG(4,("Ignoring nttranss of length %d\n",length));
return(-1);
}
/****************************************************************************
reply to a SMBNTtrans
****************************************************************************/
int reply_nttrans(char *inbuf,char *outbuf,int length,int bufsize)
{
int outsize = 0;
int cnum = SVAL(inbuf,smb_tid);
#if 0
uint16 max_setup_count = CVAL(inbuf, smb_nt_MaxSetupCount);
uint32 max_parameter_count = IVAL(inbuf, smb_nt_MaxParameterCount);
uint32 max_data_count = IVAL(inbuf,smb_nt_MaxDataCount);
#endif
uint32 total_parameter_count = IVAL(inbuf, smb_nt_TotalParameterCount);
uint32 total_data_count = IVAL(inbuf, smb_nt_TotalDataCount);
uint32 parameter_count = IVAL(inbuf,smb_nt_ParameterCount);
uint32 parameter_offset = IVAL(inbuf,smb_nt_ParameterOffset);
uint32 data_count = IVAL(inbuf,smb_nt_DataCount);
uint32 data_offset = IVAL(inbuf,smb_nt_DataOffset);
uint16 setup_count = SVAL(inbuf,smb_nt_SetupCount);
uint16 function_code = SVAL( inbuf, smb_nt_Function);
char *params = NULL, *data = NULL, *setup = NULL;
uint32 num_params_sofar, num_data_sofar;
if(global_oplock_break && (function_code == NT_TRANSACT_CREATE)) {
/*
* Queue this open message as we are the process of an oplock break.
*/
DEBUG(2,("%s: reply_nttrans: queueing message NT_TRANSACT_CREATE \
due to being in oplock break state.\n", timestring() ));
push_smb_message( inbuf, length);
return -1;
}
outsize = set_message(outbuf,0,0,True);
/*
* All nttrans messages we handle have smb_wcnt == 19 + setup_count.
* Ensure this is so as a sanity check.
*/
if(CVAL(inbuf, smb_wcnt) != 19 + setup_count) {
DEBUG(2,("Invalid smb_wcnt in trans2 call\n"));
return(ERROR(ERRSRV,ERRerror));
}
/* Allocate the space for the setup, the maximum needed parameters and data */
if(setup_count > 0)
setup = (char *)malloc(setup_count);
if (total_parameter_count > 0)
params = (char *)malloc(total_parameter_count);
if (total_data_count > 0)
data = (char *)malloc(total_data_count);
if ((total_parameter_count && !params) || (total_data_count && !data) ||
(setup_count && !setup)) {
DEBUG(0,("reply_nttrans : Out of memory\n"));
return(ERROR(ERRDOS,ERRnomem));
}
/* Copy the param and data bytes sent with this request into
the params buffer */
num_params_sofar = parameter_count;
num_data_sofar = data_count;
if (parameter_count > total_parameter_count || data_count > total_data_count)
exit_server("reply_nttrans: invalid sizes in packet.\n");
if(setup)
memcpy( setup, &inbuf[smb_nt_SetupStart], setup_count);
if(params)
memcpy( params, smb_base(inbuf) + parameter_offset, parameter_count);
if(data)
memcpy( data, smb_base(inbuf) + data_offset, data_count);
if(num_data_sofar < total_data_count || num_params_sofar < total_parameter_count) {
/* We need to send an interim response then receive the rest
of the parameter/data bytes */
outsize = set_message(outbuf,0,0,True);
send_smb(Client,outbuf);
while( num_data_sofar < total_data_count || num_params_sofar < total_parameter_count) {
BOOL ret;
ret = receive_next_smb(Client,oplock_sock,inbuf,bufsize,
SMB_SECONDARY_WAIT);
if((ret && (CVAL(inbuf, smb_com) != SMBnttranss)) || !ret) {
outsize = set_message(outbuf,0,0,True);
if(ret)
DEBUG(0,("reply_nttrans: Invalid secondary nttrans packet\n"));
else
DEBUG(0,("reply_nttrans: %s in getting secondary nttrans response.\n",
(smb_read_error == READ_ERROR) ? "error" : "timeout" ));
if(params)
free(params);
if(data)
free(data);
if(setup)
free(setup);
return(ERROR(ERRSRV,ERRerror));
}
/* Revise total_params and total_data in case they have changed downwards */
total_parameter_count = SIVAL(inbuf, smb_nts_TotalParameterCount);
total_data_count = SIVAL(inbuf, smb_nts_TotalDataCount);
num_params_sofar += (parameter_count = SIVAL(inbuf,smb_nts_ParameterCount));
num_data_sofar += ( data_count = SIVAL(inbuf, smb_nts_DataCount));
if (num_params_sofar > total_parameter_count || num_data_sofar > total_data_count)
exit_server("reply_nttrans2: data overflow in secondary nttrans packet\n");
memcpy( &params[ SIVAL(inbuf, smb_nts_ParameterDisplacement)],
smb_base(inbuf) + SVAL(inbuf, smb_nts_ParameterOffset), parameter_count);
memcpy( &data[SVAL(inbuf, smb_nts_DataDisplacement)],
smb_base(inbuf)+ SVAL(inbuf, smb_nts_DataOffset), data_count);
}
}
if (Protocol >= PROTOCOL_NT1) {
uint16 flg2 = SVAL(outbuf,smb_flg2);
SSVAL(outbuf,smb_flg2,flg2 | 0x40); /* IS_LONG_NAME */
}
/* Now we must call the relevant TRANS2 function */
switch(function_code)
{
case NT_TRANSACT_CREATE:
outsize = call_nt_transact_create(inbuf, outbuf, bufsize, cnum,
&setup, &params, &data);
break;
case NT_TRANSACT_IOCTL:
outsize = call_nt_transact_ioctl(inbuf, outbuf, bufsize, cnum,
&setup, &params, &data);
break;
case NT_TRANSACT_SET_SECURITY_DESC:
outsize = call_nt_transact_set_security_desc(inbuf, outbuf, length, bufsize, cnum,
&setup, &params, &data);
break;
case NT_TRANSACT_NOTIFY_CHANGE:
outsize = call_nt_transact_notify_change(inbuf, outbuf, length, bufsize, cnum,
&setup, &params, &data);
break;
case NT_TRANSACT_RENAME:
outsize = call_nt_transact_rename(inbuf, outbuf, length, bufsize, cnum,
&setup, &params, &data);
break;
case NT_TRANSACT_QUERY_SECURITY_DESC:
outsize = call_nt_transact_query_security_desc(inbuf, outbuf, length, bufsize, cnum,
&setup, &params, &data, total_data);
break;
default:
/* Error in request */
DEBUG(0,("reply_nttrans: %s Unknown request %d in nttrans call\n",timestring(),
tran_call));
if(setup)
free(setup);
if(params)
free(params);
if(data)
free(data);
return (ERROR(ERRSRV,ERRerror));
}
/* As we do not know how many data packets will need to be
returned here the various call_nt_transact_xxxx calls
must send their own. Thus a call_nt_transact_xxxx routine only
returns a value other than -1 when it wants to send
an error packet.
*/
if(setup)
free(setup);
if(params)
free(params);
if(data)
free(data);
return outsize; /* If a correct response was needed the call_nt_transact_xxxx
calls have already sent it. If outsize != -1 then it is
returning an error packet. */
}