c5aaac7823
"ipproto.h" header file. svn path=/trunk/; revision=3313
522 lines
14 KiB
C
522 lines
14 KiB
C
/* packet-portmap.c
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* Routines for portmap dissection
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*
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* $Id: packet-portmap.c,v 1.29 2001/04/17 06:29:12 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-smb.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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#ifdef HAVE_SYS_TYPES_H
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#include <sys/types.h>
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#endif
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#include "packet-rpc.h"
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#include "packet-portmap.h"
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#include "ipproto.h"
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/*
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* See:
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*
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* RFC 1833, "Binding Protocols for ONC RPC Version 2".
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*/
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static int proto_portmap = -1;
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static int hf_portmap_proto = -1;
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static int hf_portmap_prog = -1;
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static int hf_portmap_proc = -1;
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static int hf_portmap_version = -1;
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static int hf_portmap_port = -1;
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static int hf_portmap_answer = -1;
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static int hf_portmap_args = -1;
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static int hf_portmap_result = -1;
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static int hf_portmap_rpcb = -1;
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static int hf_portmap_rpcb_prog = -1;
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static int hf_portmap_rpcb_version = -1;
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static int hf_portmap_rpcb_netid = -1;
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static int hf_portmap_rpcb_addr = -1;
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static int hf_portmap_rpcb_owner = -1;
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static int hf_portmap_uaddr = -1;
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static gint ett_portmap = -1;
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static gint ett_portmap_rpcb = -1;
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static gint ett_portmap_entry = -1;
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/* Dissect a getport call */
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int dissect_getport_call(tvbuff_t *tvb, int offset, packet_info *pinfo,
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proto_tree *tree)
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{
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guint32 proto;
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guint32 prog;
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if ( tree )
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{
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prog = tvb_get_ntohl(tvb, offset+0);
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proto_tree_add_uint_format(tree, hf_portmap_prog, tvb,
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offset, 4, prog, "Program: %s (%u)",
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rpc_prog_name(prog), prog);
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proto_tree_add_item(tree, hf_portmap_version, tvb,
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offset+4, 4, FALSE);
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proto = tvb_get_ntohl(tvb, offset+8);
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proto_tree_add_uint_format(tree, hf_portmap_proto, tvb,
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offset+8, 4, proto, "Proto: %s (%u)", ipprotostr(proto), proto);
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proto_tree_add_item(tree, hf_portmap_port, tvb,
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offset+12, 4, FALSE);
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}
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return offset+16;
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}
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int dissect_getport_reply(tvbuff_t *tvb, int offset, packet_info *pinfo,
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proto_tree *tree)
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{
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offset = dissect_rpc_uint32_tvb(tvb, pinfo, tree, hf_portmap_port,
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offset);
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return offset;
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}
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/* Dissect a 'set' call */
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int dissect_set_call(tvbuff_t *tvb, int offset, packet_info *pinfo,
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proto_tree *tree)
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{
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guint32 proto;
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guint32 prog;
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if ( tree )
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{
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prog = tvb_get_ntohl(tvb, offset+0);
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proto_tree_add_uint_format(tree, hf_portmap_prog, tvb,
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offset, 4, prog, "Program: %s (%d)",
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rpc_prog_name(prog), prog);
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proto_tree_add_item(tree, hf_portmap_version, tvb,
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offset+4, 4, FALSE);
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proto = tvb_get_ntohl(tvb, offset+8);
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proto_tree_add_uint_format(tree, hf_portmap_proto,tvb,
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offset+8, 4, proto, "Proto: %s (%d)", ipprotostr(proto), proto);
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proto_tree_add_item(tree, hf_portmap_port, tvb,
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offset+12, 4, FALSE);
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}
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return offset+16;
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}
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/* Dissect a 'unset' call */
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int dissect_unset_call(tvbuff_t *tvb, int offset, packet_info *pinfo,
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proto_tree *tree)
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{
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guint32 proto;
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guint32 prog;
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if ( tree )
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{
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prog = tvb_get_ntohl(tvb, offset+0);
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proto_tree_add_uint_format(tree, hf_portmap_prog, tvb,
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offset, 4, prog, "Program: %s (%d)",
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rpc_prog_name(prog), prog);
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proto_tree_add_item(tree, hf_portmap_version, tvb,
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offset+4, 4, FALSE);
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proto = tvb_get_ntohl(tvb, offset+8);
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proto_tree_add_uint(tree, hf_portmap_proto, tvb,
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offset+8, 4, proto);
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proto_tree_add_item(tree, hf_portmap_port, tvb,
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offset+12, 4, FALSE);
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}
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return offset+16;
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}
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int dissect_set_reply(tvbuff_t *tvb, int offset, packet_info *pinfo,
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proto_tree *tree)
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{
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offset = dissect_rpc_bool_tvb(tvb, pinfo, tree, hf_portmap_answer,
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offset);
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return offset;
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}
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static int
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dissect_dump_entry(tvbuff_t *tvb, int offset, packet_info *pinfo,
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proto_tree *tree)
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{
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int prog, version, proto, port;
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proto_item *ti, *subtree;
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prog = tvb_get_ntohl(tvb, offset+0);
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version = tvb_get_ntohl(tvb, offset+4);
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proto = tvb_get_ntohl(tvb, offset+8);
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port = tvb_get_ntohl(tvb, offset+12);
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if ( tree )
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{
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ti = proto_tree_add_text(tree, tvb, offset, 16,
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"Map Entry: %s (%u) V%d",
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rpc_prog_name(prog), prog, version);
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subtree = proto_item_add_subtree(ti, ett_portmap_entry);
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proto_tree_add_uint_format(subtree, hf_portmap_prog, tvb,
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offset+0, 4, prog,
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"Program: %s (%u)", rpc_prog_name(prog), prog);
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proto_tree_add_uint(subtree, hf_portmap_version, tvb,
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offset+4, 4, version);
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proto_tree_add_uint_format(subtree, hf_portmap_proto, tvb,
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offset+8, 4, proto,
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"Protocol: %s (0x%02x)", ipprotostr(proto), proto);
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proto_tree_add_uint(subtree, hf_portmap_port, tvb,
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offset+12, 4, port);
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}
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offset += 16;
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return offset;
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}
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int dissect_dump_reply(tvbuff_t *tvb, int offset, packet_info *pinfo,
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proto_tree *tree)
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{
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offset = dissect_rpc_list_tvb(tvb, pinfo, tree, offset,
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dissect_dump_entry);
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return offset;
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}
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/* Dissect a callit call */
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int dissect_callit_call(tvbuff_t *tvb, int offset, packet_info *pinfo,
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proto_tree *tree)
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{
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guint32 prog, vers, proc;
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prog = tvb_get_ntohl(tvb, offset+0);
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if ( tree )
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{
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proto_tree_add_uint_format(tree, hf_portmap_prog, tvb,
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offset, 4, prog, "Program: %s (%u)",
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rpc_prog_name(prog), prog);
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}
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vers = tvb_get_ntohl(tvb, offset+4);
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if ( tree )
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{
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proto_tree_add_uint(tree, hf_portmap_version, tvb,
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offset+4, 4, vers);
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}
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proc = tvb_get_ntohl(tvb, offset+8);
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if ( tree )
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{
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proto_tree_add_uint_format(tree, hf_portmap_proc, tvb,
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offset+8, 4, proc, "Procedure: %s (%u)",
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rpc_proc_name(prog, vers, proc), proc);
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}
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offset += 12;
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/* Dissect the arguments for this procedure.
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Make the columns non-writable, so the dissector won't change
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them out from under us. */
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col_set_writable(pinfo->fd, FALSE);
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offset = dissect_rpc_indir_call(tvb, pinfo, tree, offset,
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hf_portmap_args, prog, vers, proc);
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return offset;
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}
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/* Dissect a callit reply */
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int dissect_callit_reply(tvbuff_t *tvb, int offset, packet_info *pinfo,
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proto_tree *tree)
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{
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if ( tree )
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{
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proto_tree_add_item(tree, hf_portmap_port, tvb,
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offset, 4, FALSE);
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}
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offset += 4;
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/* Dissect the result of this procedure.
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Make the columns non-writable, so the dissector won't change
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them out from under us. */
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col_set_writable(pinfo->fd, FALSE);
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offset = dissect_rpc_indir_reply(tvb, pinfo, tree, offset,
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hf_portmap_result, hf_portmap_prog, hf_portmap_version,
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hf_portmap_proc);
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return offset;
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}
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/* proc number, "proc name", dissect_request, dissect_reply */
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/* NULL as function pointer means: type of arguments is "void". */
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static const vsff portmap1_proc[] = {
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{ PORTMAPPROC_NULL, "NULL", NULL, NULL },
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{ PORTMAPPROC_SET, "SET", NULL, NULL },
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{ PORTMAPPROC_UNSET, "UNSET", NULL, NULL },
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{ PORTMAPPROC_GETPORT, "GETPORT", NULL, NULL },
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{ PORTMAPPROC_DUMP, "DUMP", NULL, NULL },
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{ PORTMAPPROC_CALLIT, "CALLIT", NULL, NULL },
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{ 0, NULL, NULL, NULL }
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};
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/* end of Portmap version 1 */
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static const vsff portmap2_proc[] = {
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{ PORTMAPPROC_NULL, "NULL",
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NULL, NULL },
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{ PORTMAPPROC_SET, "SET",
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dissect_set_call, dissect_set_reply },
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{ PORTMAPPROC_UNSET, "UNSET",
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dissect_unset_call, dissect_set_reply },
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{ PORTMAPPROC_GETPORT, "GETPORT",
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dissect_getport_call, dissect_getport_reply },
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{ PORTMAPPROC_DUMP, "DUMP",
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NULL, dissect_dump_reply },
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{ PORTMAPPROC_CALLIT, "CALLIT",
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dissect_callit_call, dissect_callit_reply },
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{ 0, NULL, NULL, NULL }
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};
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/* end of Portmap version 2 */
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/* RFC 1833, Page 3 */
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static int
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dissect_rpcb(tvbuff_t *tvb, int offset, packet_info *pinfo, proto_tree *tree)
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{
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proto_item* rpcb_item = NULL;
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proto_tree* rpcb_tree = NULL;
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int old_offset = offset;
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guint32 prog;
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if (tree) {
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rpcb_item = proto_tree_add_item(tree, hf_portmap_rpcb, tvb,
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offset, tvb_length(tvb), FALSE);
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if (rpcb_item)
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rpcb_tree = proto_item_add_subtree(rpcb_item, ett_portmap_rpcb);
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}
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prog = tvb_get_ntohl(tvb, offset);
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if (rpcb_tree)
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proto_tree_add_uint_format(rpcb_tree, hf_portmap_rpcb_prog, tvb,
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offset, 4, prog,
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"Program: %s (%u)", rpc_prog_name(prog), prog);
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offset += 4;
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offset = dissect_rpc_uint32_tvb(tvb, pinfo, rpcb_tree,
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hf_portmap_rpcb_version, offset);
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offset = dissect_rpc_string_tvb(tvb, pinfo, rpcb_tree,
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hf_portmap_rpcb_netid, offset, NULL);
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offset = dissect_rpc_string_tvb(tvb, pinfo, rpcb_tree,
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hf_portmap_rpcb_addr, offset, NULL);
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offset = dissect_rpc_string_tvb(tvb, pinfo, rpcb_tree,
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hf_portmap_rpcb_owner, offset, NULL);
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/* now we know, that rpcb is shorter */
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if (rpcb_item) {
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proto_item_set_len(rpcb_item, offset - old_offset);
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}
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return offset;
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}
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/* RFC 1833, Page 7 */
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int dissect_rpcb3_getaddr_call(tvbuff_t *tvb, int offset, packet_info *pinfo,
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proto_tree *tree)
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{
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offset = dissect_rpcb(tvb, offset, pinfo, tree);
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return offset;
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}
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/* RFC 1833, Page 7 */
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int dissect_rpcb3_getaddr_reply(tvbuff_t *tvb, int offset, packet_info *pinfo,
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proto_tree *tree)
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{
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offset = dissect_rpc_string_tvb(tvb, pinfo, tree,
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hf_portmap_uaddr, offset, NULL);
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return offset;
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}
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/* RFC 1833, Page 7 */
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int dissect_rpcb3_dump_reply(tvbuff_t *tvb, int offset, packet_info *pinfo,
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proto_tree *tree)
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{
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offset = dissect_rpc_list_tvb(tvb, pinfo, tree, offset, dissect_rpcb);
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return offset;
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}
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/* RFC 1833, page 4 */
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int dissect_rpcb_rmtcallres(tvbuff_t *tvb, int offset, packet_info *pinfo,
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proto_tree *tree)
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{
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/* Dissect the remote universal address. */
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offset = dissect_rpc_string_tvb(tvb, pinfo, tree,
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hf_portmap_rpcb_addr, offset, NULL);
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/* Dissect the result of this procedure.
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Make the columns non-writable, so the dissector won't change
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them out from under us. */
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col_set_writable(pinfo->fd, FALSE);
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offset = dissect_rpc_indir_reply(tvb, pinfo, tree, offset,
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hf_portmap_result, hf_portmap_prog, hf_portmap_version,
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hf_portmap_proc);
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return offset;
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}
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/* Portmapper version 3, RFC 1833, Page 7 */
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static const vsff portmap3_proc[] = {
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{ RPCBPROC_NULL, "NULL",
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NULL, NULL },
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{ RPCBPROC_SET, "SET",
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NULL, NULL },
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{ RPCBPROC_UNSET, "UNSET",
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NULL, NULL },
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{ RPCBPROC_GETADDR, "GETADDR",
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dissect_rpcb3_getaddr_call, dissect_rpcb3_getaddr_reply},
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{ RPCBPROC_DUMP, "DUMP",
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NULL, dissect_rpcb3_dump_reply },
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{ RPCBPROC_CALLIT, "CALLIT",
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dissect_callit_call, dissect_rpcb_rmtcallres },
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{ RPCBPROC_GETTIME, "GETTIME",
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NULL, NULL },
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{ RPCBPROC_UADDR2TADDR, "UADDR2TADDR",
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NULL, NULL },
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{ RPCBPROC_TADDR2UADDR, "TADDR2UADDR",
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NULL, NULL },
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{ 0, NULL, NULL, NULL }
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};
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/* end of Portmap version 3 */
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/* Portmapper version 4, RFC 1833, Page 8 */
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static const vsff portmap4_proc[] = {
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{ RPCBPROC_NULL, "NULL",
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NULL, NULL },
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{ RPCBPROC_SET, "SET",
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NULL, NULL },
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{ RPCBPROC_UNSET, "UNSET",
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NULL, NULL },
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{ RPCBPROC_GETADDR, "GETADDR",
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dissect_rpcb3_getaddr_call, dissect_rpcb3_getaddr_reply},
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{ RPCBPROC_DUMP, "DUMP",
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NULL, dissect_rpcb3_dump_reply },
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{ RPCBPROC_BCAST, "BCAST",
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dissect_callit_call, dissect_rpcb_rmtcallres },
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{ RPCBPROC_GETTIME, "GETTIME",
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NULL, NULL },
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{ RPCBPROC_UADDR2TADDR, "UADDR2TADDR",
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NULL, NULL },
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{ RPCBPROC_TADDR2UADDR, "TADDR2UADDR",
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NULL, NULL },
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{ RPCBPROC_GETVERSADDR, "GETVERSADDR",
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NULL, NULL },
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{ RPCBPROC_INDIRECT, "INDIRECT",
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dissect_callit_call, dissect_rpcb_rmtcallres },
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{ RPCBPROC_GETADDRLIST, "GETADDRLIST",
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NULL, NULL },
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{ RPCBPROC_GETSTAT, "GETSTAT",
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NULL, NULL },
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{ 0, NULL, NULL, NULL }
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};
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/* end of Portmap version 4 */
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void
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proto_register_portmap(void)
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{
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static hf_register_info hf[] = {
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{ &hf_portmap_prog, {
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"Program", "portmap.prog", FT_UINT32, BASE_DEC,
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NULL, 0, "Program" }},
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{ &hf_portmap_port, {
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"Port", "portmap.port", FT_UINT32, BASE_DEC,
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NULL, 0, "Port" }},
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{ &hf_portmap_proc, {
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"Procedure", "portmap.proc", FT_UINT32, BASE_DEC,
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NULL, 0, "Procedure" }},
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{ &hf_portmap_proto, {
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"Protocol", "portmap.proto", FT_UINT32, BASE_DEC,
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NULL, 0, "Protocol" }},
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{ &hf_portmap_version, {
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"Version", "portmap.version", FT_UINT32, BASE_DEC,
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NULL, 0, "Version" }},
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{ &hf_portmap_answer, {
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"Answer", "portmap.answer", FT_BOOLEAN, BASE_DEC,
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NULL, 0, "Answer" }},
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{ &hf_portmap_args, {
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"Arguments", "portmap.args", FT_BYTES, BASE_HEX,
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NULL, 0, "Arguments" }},
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|
{ &hf_portmap_result, {
|
|
"Result", "portmap.result", FT_BYTES, BASE_HEX,
|
|
NULL, 0, "Result" }},
|
|
{ &hf_portmap_rpcb, {
|
|
"RPCB", "portmap.rpcb", FT_NONE, 0,
|
|
NULL, 0, "RPCB" }},
|
|
{ &hf_portmap_rpcb_prog, {
|
|
"Program", "portmap.rpcb.prog", FT_UINT32, BASE_DEC,
|
|
NULL, 0, "Program" }},
|
|
{ &hf_portmap_rpcb_version, {
|
|
"Version", "portmap.rpcb.version", FT_UINT32, BASE_DEC,
|
|
NULL, 0, "Version" }},
|
|
{ &hf_portmap_rpcb_netid, {
|
|
"Network Id", "portmap.rpcb.netid", FT_STRING, BASE_DEC,
|
|
NULL, 0, "Network Id" }},
|
|
{ &hf_portmap_rpcb_addr, { /* address in rpcb structure in request */
|
|
"Universal Address", "portmap.rpcb.addr", FT_STRING, BASE_DEC,
|
|
NULL, 0, "Universal Address" }},
|
|
{ &hf_portmap_rpcb_owner, {
|
|
"Owner of this Service", "portmap.rpcb.owner", FT_STRING, BASE_DEC,
|
|
NULL, 0, "Owner of this Service" }},
|
|
{ &hf_portmap_uaddr, { /* address in RPCBPROC_GETADDR reply */
|
|
"Universal Address", "portmap.uaddr", FT_STRING, BASE_DEC,
|
|
NULL, 0, "Universal Address" }},
|
|
};
|
|
static gint *ett[] = {
|
|
&ett_portmap,
|
|
&ett_portmap_rpcb,
|
|
&ett_portmap_entry
|
|
};
|
|
|
|
proto_portmap = proto_register_protocol("Portmap", "Portmap", "portmap");
|
|
proto_register_field_array(proto_portmap, hf, array_length(hf));
|
|
proto_register_subtree_array(ett, array_length(ett));
|
|
}
|
|
|
|
void
|
|
proto_reg_handoff_portmap(void)
|
|
{
|
|
/* Register the protocol as RPC */
|
|
rpc_init_prog(proto_portmap, PORTMAP_PROGRAM, ett_portmap);
|
|
/* Register the procedure tables */
|
|
rpc_init_proc_table(PORTMAP_PROGRAM, 1, portmap1_proc);
|
|
rpc_init_proc_table(PORTMAP_PROGRAM, 2, portmap2_proc);
|
|
rpc_init_proc_table(PORTMAP_PROGRAM, 3, portmap3_proc);
|
|
rpc_init_proc_table(PORTMAP_PROGRAM, 4, portmap4_proc);
|
|
}
|