forked from osmocom/wireshark
43ccfd8054
"{old_}heur_dissector_add()", "{old_}conv_dissector_add()", and
"register_dissector()", so that an entry in those tables has associated
with it the protocol index of the protocol the dissector handles (or -1,
if there is no protocol index for it).
This is for future use in a number of places.
(Arguably, "proto_register_protocol()" should take a dissector pointer
as an argument, but
1) it'd have to handle both regular and heuristic dissectors;
2) making it take either a "dissector_t" or a union of that and
a "heur_dissector_t" introduces some painful header-file
interdependencies
so I'm punting on that for now. As with other Ethereal internal APIs,
these APIs are subject to change in the future, at least until Ethereal
1.0 comes out....)
svn path=/trunk/; revision=2849
167 lines
4.6 KiB
C
167 lines
4.6 KiB
C
/* packet-tacacs.c
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* Routines for cisco tacacs/tacplus/AAA packet dissection
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*
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* $Id: packet-tacacs.c,v 1.10 2001/01/09 06:31:44 guy Exp $
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*
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* Ethereal - Network traffic analyzer
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* By Gerald Combs <gerald@zing.org>
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* Copyright 1998 Gerald Combs
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*
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* Copied from packet-tftp.c
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*/
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#ifdef HAVE_CONFIG_H
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# include "config.h"
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#endif
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#include <stdio.h>
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#ifdef HAVE_SYS_TYPES_H
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# include <sys/types.h>
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#endif
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#ifdef HAVE_NETINET_IN_H
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# include <netinet/in.h>
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#endif
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#include <string.h>
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#include <glib.h>
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#include "packet.h"
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static int proto_tacacs = -1;
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static int hf_tacacs_request = -1;
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static int hf_tacacs_response = -1;
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static int hf_tacacs_version = -1;
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static gint ett_tacacs = -1;
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#define UDP_PORT_TACACS 49
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#define TCP_PORT_TACACS 49
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static void
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dissect_tacacs(const u_char *pd, int offset, frame_data *fd, proto_tree *tree)
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{
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proto_tree *tacacs_tree, *ti;
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OLD_CHECK_DISPLAY_AS_DATA(proto_tacacs, pd, offset, fd, tree);
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if (check_col(fd, COL_PROTOCOL))
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col_set_str(fd, COL_PROTOCOL, "TACACS");
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if (check_col(fd, COL_INFO))
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{
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col_add_fstr(fd, COL_INFO, "%s",
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(pi.match_port == pi.destport) ? "Request" : "Response");
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}
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if (tree)
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{
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ti = proto_tree_add_item(tree, proto_tacacs, NullTVB, offset, END_OF_FRAME, FALSE);
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tacacs_tree = proto_item_add_subtree(ti, ett_tacacs);
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proto_tree_add_string(tacacs_tree, hf_tacacs_version, NullTVB, 0, 0, "XTacacs");
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if (pi.match_port == pi.destport)
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{
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proto_tree_add_boolean_hidden(tacacs_tree, hf_tacacs_request, NullTVB,
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offset, END_OF_FRAME, TRUE);
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proto_tree_add_text(tacacs_tree, NullTVB, offset,
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END_OF_FRAME, "Request: <opaque data>" );
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}
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else
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{
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proto_tree_add_boolean_hidden(tacacs_tree, hf_tacacs_response, NullTVB,
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offset, END_OF_FRAME, TRUE);
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proto_tree_add_text(tacacs_tree, NullTVB, offset,
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END_OF_FRAME, "Response: <opaque data>");
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}
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}
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}
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static void
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dissect_tacplus(const u_char *pd, int offset, frame_data *fd, proto_tree *tree)
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{
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proto_tree *tacacs_tree, *ti;
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if (check_col(fd, COL_PROTOCOL))
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col_set_str(fd, COL_PROTOCOL, "TACACS");
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if (check_col(fd, COL_INFO))
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{
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col_add_fstr(fd, COL_INFO, "%s",
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(pi.match_port == pi.destport) ? "Request" : "Response");
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}
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if (tree)
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{
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ti = proto_tree_add_item(tree, proto_tacacs, NullTVB, offset, END_OF_FRAME, FALSE);
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tacacs_tree = proto_item_add_subtree(ti, ett_tacacs);
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proto_tree_add_string(tacacs_tree, hf_tacacs_version, NullTVB, 0, 0, "Tacacs+");
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if (pi.match_port == pi.destport)
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{
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proto_tree_add_boolean_hidden(tacacs_tree, hf_tacacs_request, NullTVB,
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offset, END_OF_FRAME, TRUE);
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proto_tree_add_text(tacacs_tree, NullTVB, offset,
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END_OF_FRAME, "Request: <opaque data>" );
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}
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else
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{
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proto_tree_add_boolean_hidden(tacacs_tree, hf_tacacs_response, NullTVB,
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offset, END_OF_FRAME, TRUE);
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proto_tree_add_text(tacacs_tree, NullTVB, offset,
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END_OF_FRAME, "Response: <opaque data>");
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}
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}
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}
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void
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proto_register_tacacs(void)
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{
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static hf_register_info hf[] = {
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{ &hf_tacacs_version,
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{ "Tacacs Version", "tacacs.version",
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FT_STRING, BASE_NONE, NULL, 0x0,
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"xtacacs or tacplus" }},
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{ &hf_tacacs_response,
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{ "Response", "tacacs.response",
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FT_BOOLEAN, BASE_NONE, NULL, 0x0,
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"TRUE if TACACS response" }},
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{ &hf_tacacs_request,
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{ "Request", "tacacs.request",
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FT_BOOLEAN, BASE_NONE, NULL, 0x0,
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"TRUE if TACACS request" }}
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};
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static gint *ett[] = {
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&ett_tacacs,
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};
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proto_tacacs = proto_register_protocol("TACACS", "TACACS", "tacacs");
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proto_register_field_array(proto_tacacs, hf, array_length(hf));
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proto_register_subtree_array(ett, array_length(ett));
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}
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void
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proto_reg_handoff_tacacs(void)
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{
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old_dissector_add("udp.port", UDP_PORT_TACACS, dissect_tacacs,
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proto_tacacs);
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old_dissector_add("tcp.port", TCP_PORT_TACACS, dissect_tacplus,
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proto_tacacs);
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}
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