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

compiled yet, just checked in for safe keeping :-).
Jeremy.
(This used to be commit 74565f0039be8ab02a501accad5e671e80733314)

1 files changed, 225 insertions, 0 deletions

diff --git a/source3/smbd/nttrans.c b/source3/smbd/nttrans.c
new file mode 100644
index 0000000000..0a861bf9c6
--- /dev/null
+++ b/source3/smbd/nttrans.c
@@ -0,0 +1,225 @@
+/*
+   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. */
+}