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/* packet-smb-common.c
* Common routines for smb packet dissection
* Copyright 2000, Jeffrey C. Foster <jfoste@woodward.com>
*
* $Id: packet-smb-common.c,v 1.3 2000/02/14 04:22:22 guy Exp $
*
* Ethereal - Network traffic analyzer
* By Gerald Combs <gerald@zing.org>
* Copyright 1998 Gerald Combs
*
* Copied from packet-pop.c
*
* 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#include "packet-smb-common.h"
int display_ms_value( char *Name, int len, const u_char *pd, int offset,
frame_data *fd, proto_tree *tree)
{/* display an entry from the tree and return the length */
guint32 Temp32;
if( len == 1)
Temp32 = GBYTE(pd, offset);
else if( len == 2)
Temp32 = GSHORT(pd, offset);
else if( len == 4)
Temp32 = GWORD(pd, offset);
/* this is an error if we didn't hit one of those three */
else
return 0;
proto_tree_add_text( tree, offset, len, "%s: %u", Name, Temp32);
return len;
}
int display_ms_string( char *Name, const u_char *pd, int offset,
frame_data *fd, proto_tree *tree)
{/* display a string from the tree and return the amount to move offset */
proto_tree_add_text( tree, offset, strlen( &pd[offset]) + 1, "%s: %s ",
Name, &pd[offset]);
return strlen( &pd[offset]) + 1;
}
int display_unicode_string( char *Name, const u_char *pd, int offset,
frame_data *fd, proto_tree *tree){
/* display a unicode string from the tree and return amount to move offset */
char Temp[100], *OutPtr;
const char *InPtr;
InPtr = &pd[ offset]; /* point to unicode string */
OutPtr = Temp; /* point to temp space */
while ( *InPtr){ /* copy every other byte */
*OutPtr++ = *InPtr;
InPtr += 2;
}
*OutPtr = 0; /* terminate out string */
proto_tree_add_text( tree, offset, strlen( Temp) * 2 + 2, "%s: %s ",
Name, Temp);
return strlen( Temp) * 2 + 2;
}
void
dissect_smb_unknown( const u_char *pd, int offset, frame_data *fd,
proto_tree *tree){
/* display data as unknown */
proto_tree_add_text(tree, offset, END_OF_FRAME, "Data (%u bytes)",
END_OF_FRAME);
}
void
display_flags( struct flag_array_type *flag_array, int length,
const u_char *pd, int offset, proto_tree *tree){
/* Display a bit fields using the flag_array information. */
/* See packet-smb-common.h for definition of the flag_array structure */
/*** NOTE: currently only handles values that are 1, 2, or 4 octets wide.*/
/*** This should be expanded to handle any bit width. */
/* NOTE: the last entry must have the mask value = 0, this is the end of */
/* array flag */
struct flag_array_type *array_ptr = flag_array;
guint32 flags;
switch (length) {
case 1:
flags = GBYTE( pd, offset);
break;
case 2:
flags = GSHORT( pd, offset);
break;
case 4:
flags = GWORD( pd, offset);
break;
default:
g_assert_not_reached();
return;
}
while( array_ptr->mask) {
proto_tree_add_text( tree, offset, 2, "%s%s%s%s",
decode_boolean_bitfield( flags, array_ptr->mask,
length * 8, "",""),
array_ptr->pre_string,
((flags & array_ptr->mask) ? array_ptr->true_string :
array_ptr->false_string),
array_ptr->post_string);
++array_ptr;
}
}
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