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/*
Unix SMB / Netbios implementation .
Version 1.9 .
error packet handling
Copyright ( C ) Andrew Tridgell 1992 - 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 0213 9 , USA .
*/
# include "includes.h"
extern int DEBUGLEVEL ;
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/* these can be set by some functions to override the error codes */
int unix_ERR_class = SMB_SUCCESS ;
int unix_ERR_code = 0 ;
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/****************************************************************************
create an error packet from a cached error .
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
int cached_error_packet ( char * inbuf , char * outbuf , files_struct * fsp , int line )
{
write_bmpx_struct * wbmpx = fsp - > wbmpx_ptr ;
int32 eclass = wbmpx - > wr_errclass ;
int32 err = wbmpx - > wr_error ;
/* We can now delete the auxiliary struct */
free ( ( char * ) wbmpx ) ;
fsp - > wbmpx_ptr = NULL ;
return error_packet ( inbuf , outbuf , eclass , err , line ) ;
}
struct
{
int unixerror ;
int smbclass ;
int smbcode ;
} unix_smb_errmap [ ] =
{
{ EPERM , ERRDOS , ERRnoaccess } ,
{ EACCES , ERRDOS , ERRnoaccess } ,
{ ENOENT , ERRDOS , ERRbadfile } ,
{ ENOTDIR , ERRDOS , ERRbadpath } ,
{ EIO , ERRHRD , ERRgeneral } ,
{ EBADF , ERRSRV , ERRsrverror } ,
{ EINVAL , ERRSRV , ERRsrverror } ,
{ EEXIST , ERRDOS , ERRfilexists } ,
{ ENFILE , ERRDOS , ERRnofids } ,
{ EMFILE , ERRDOS , ERRnofids } ,
{ ENOSPC , ERRHRD , ERRdiskfull } ,
# ifdef EDQUOT
{ EDQUOT , ERRHRD , ERRdiskfull } ,
# endif
# ifdef ENOTEMPTY
{ ENOTEMPTY , ERRDOS , ERRnoaccess } ,
# endif
# ifdef EXDEV
{ EXDEV , ERRDOS , ERRdiffdevice } ,
# endif
{ EROFS , ERRHRD , ERRnowrite } ,
{ 0 , 0 , 0 }
} ;
/****************************************************************************
create an error packet from errno
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
int unix_error_packet ( char * inbuf , char * outbuf , int def_class , uint32 def_code , int line )
{
int eclass = def_class ;
int ecode = def_code ;
int i = 0 ;
if ( unix_ERR_class ! = SMB_SUCCESS )
{
eclass = unix_ERR_class ;
ecode = unix_ERR_code ;
unix_ERR_class = SMB_SUCCESS ;
unix_ERR_code = 0 ;
}
else
{
while ( unix_smb_errmap [ i ] . smbclass ! = 0 )
{
if ( unix_smb_errmap [ i ] . unixerror = = errno )
{
eclass = unix_smb_errmap [ i ] . smbclass ;
ecode = unix_smb_errmap [ i ] . smbcode ;
break ;
}
i + + ;
}
}
return ( error_packet ( inbuf , outbuf , eclass , ecode , line ) ) ;
}
/****************************************************************************
create an error packet . Normally called using the ERROR ( ) macro
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
int error_packet ( char * inbuf , char * outbuf , int error_class , uint32 error_code , int line )
{
int outsize = set_message ( outbuf , 0 , 0 , True ) ;
int cmd = CVAL ( inbuf , smb_com ) ;
int flgs2 = SVAL ( outbuf , smb_flg2 ) ;
if ( ( flgs2 & FLAGS2_32_BIT_ERROR_CODES ) = = FLAGS2_32_BIT_ERROR_CODES )
{
SIVAL ( outbuf , smb_rcls , error_code ) ;
DEBUG ( 3 , ( " 32 bit error packet at line %d cmd=%d (%s) eclass=%08x [%s] \n " ,
line , cmd , smb_fn_name ( cmd ) , error_code , smb_errstr ( outbuf ) ) ) ;
}
else
{
CVAL ( outbuf , smb_rcls ) = error_class ;
SSVAL ( outbuf , smb_err , error_code ) ;
DEBUG ( 3 , ( " error packet at line %d cmd=%d (%s) eclass=%d ecode=%d \n " ,
line ,
( int ) CVAL ( inbuf , smb_com ) ,
smb_fn_name ( CVAL ( inbuf , smb_com ) ) ,
error_class ,
error_code ) ) ;
}
if ( errno ! = 0 )
DEBUG ( 3 , ( " error string = %s \n " , strerror ( errno ) ) ) ;
return ( outsize ) ;
}
