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/* packet-gift.c
* Routines for giFT Internet File Transfer dissection
* Copyright 2000, Jon Oberheide <jon@oberheide.org>
*
* See http://www.giftproject.org/
*
* $Id: packet-gift.c,v 1.2 2004/07/01 06:30:29 guy Exp $
*
* Ethereal - Network traffic analyzer
* By Gerald Combs <gerald@ethereal.com>
* Copyright 1998 Gerald Combs
*
* 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.
*/
#ifdef HAVE_CONFIG_H
# include "config.h"
#endif
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <glib.h>
#include <epan/packet.h>
#include <epan/strutil.h>
#define TCP_PORT_GIFT 1213
static int proto_gift = -1;
static int hf_gift_response = -1;
static int hf_gift_request = -1;
static gint ett_gift = -1;
static gint ett_gift_cmd = -1;
static void
dissect_gift(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree)
{
proto_item *ti;
proto_tree *gift_tree, *cmd_tree;
gboolean is_request;
gint offset = 0;
const guchar *line;
gint next_offset;
int linelen;
int tokenlen;
const guchar *next_token;
/* set "Protocol" column text */
if (check_col(pinfo->cinfo, COL_PROTOCOL))
col_set_str(pinfo->cinfo, COL_PROTOCOL, "giFT");
/* determine whether it is a request to or response from the server */
if (pinfo->match_port == pinfo->destport)
is_request = TRUE;
else
is_request = FALSE;
linelen = tvb_find_line_end(tvb, offset, -1, &next_offset, FALSE);
line = tvb_get_ptr(tvb, offset, linelen);
/* clear the "Info" column */
if (check_col(pinfo->cinfo, COL_INFO))
col_clear(pinfo->cinfo, COL_INFO);
/* set "Info" column text */
if (check_col(pinfo->cinfo, COL_INFO))
col_add_fstr(pinfo->cinfo, COL_INFO, "%s: %s",
is_request ? "Request" : "Response",
format_text(line, linelen));
/* if tree != NULL, build protocol tree */
if (tree) {
ti = proto_tree_add_item(tree, proto_gift, tvb, 0, -1, FALSE);
gift_tree = proto_item_add_subtree(ti, ett_gift);
if (is_request) {
proto_tree_add_boolean_hidden(gift_tree, hf_gift_request, tvb, 0, 0, TRUE);
} else {
proto_tree_add_boolean_hidden(gift_tree, hf_gift_response, tvb, 0, 0, TRUE);
}
ti = proto_tree_add_text(gift_tree, tvb, offset, next_offset - offset, "%s",
tvb_format_text(tvb, offset, next_offset - offset));
cmd_tree = proto_item_add_subtree(ti, ett_gift_cmd);
tokenlen = get_token_len(line, line + linelen, &next_token);
if (tokenlen != 0) {
if (is_request) {
proto_tree_add_text(cmd_tree, tvb, offset,
tokenlen, "Request Command: %s",
format_text(line, tokenlen));
} else {
proto_tree_add_text(cmd_tree, tvb, offset,
tokenlen, "Response Command: %s",
format_text(line, tokenlen));
}
offset += next_token - line;
linelen -= next_token - line;
line = next_token;
}
if (linelen != 0) {
if (is_request) {
proto_tree_add_text(cmd_tree, tvb, offset,
linelen, "Request Arg: %s",
format_text(line, linelen));
} else {
proto_tree_add_text(cmd_tree, tvb, offset,
linelen, "Response Arg: %s",
format_text(line, linelen));
}
}
}
}
void
proto_register_gift(void)
{
static hf_register_info hf[] = {
{ &hf_gift_response,
{ "Response", "gift.response", FT_BOOLEAN, BASE_NONE, NULL, 0x0, "TRUE if giFT response", HFILL }
},
{ &hf_gift_request,
{ "Request", "gift.request", FT_BOOLEAN, BASE_NONE, NULL, 0x0, "TRUE if giFT request", HFILL }
}
};
static gint *ett[] = {
&ett_gift,
&ett_gift_cmd,
};
proto_gift = proto_register_protocol("giFT Internet File Transfer",
"giFT", "gift");
proto_register_field_array(proto_gift, hf, array_length(hf));
proto_register_subtree_array(ett, array_length(ett));
}
void
proto_reg_handoff_gift(void)
{
dissector_handle_t gift_handle;
gift_handle = create_dissector_handle(dissect_gift, proto_gift);
dissector_add("tcp.port", TCP_PORT_GIFT, gift_handle);
}
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