forked from osmocom/wireshark
468 lines
12 KiB
C
468 lines
12 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 1.10 1999/11/26 12:55:34 girlich Exp $
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*
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* Ethereal - Network traffic analyzer
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* By Gerald Combs <gerald@unicom.net>
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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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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_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 int hf_portmap_value_follows = -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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static struct true_false_string yesno = { "Yes", "No" };
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/* Dissect a getport call */
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int dissect_getport_call(const u_char *pd, int offset, frame_data *fd,
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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 ( !BYTES_ARE_IN_FRAME(offset, 16)) return offset;
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if ( tree )
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{
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prog = pntohl(&pd[offset+0]);
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proto_tree_add_item_format(tree, hf_portmap_prog,
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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,
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offset+4, 4, pntohl(&pd[offset+4]));
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proto = pntohl(&pd[offset+8]);
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proto_tree_add_item_format(tree, hf_portmap_proto,
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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,
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offset+12, 4, pntohl(&pd[offset+12]));
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}
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return offset+16;
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}
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int dissect_getport_reply(const u_char *pd, int offset, frame_data *fd,
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proto_tree *tree)
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{
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if ( !BYTES_ARE_IN_FRAME(offset, 4)) return offset;
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if ( tree )
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{
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proto_tree_add_item(tree, hf_portmap_port,
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offset, 4, pntohl(&pd[offset+0]));
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}
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return offset+=4;
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}
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/* Dissect a 'set' call */
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int dissect_set_call(const u_char *pd, int offset, frame_data *fd,
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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 ( !BYTES_ARE_IN_FRAME(offset, 16)) return offset;
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if ( tree )
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{
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prog = pntohl(&pd[offset+0]);
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proto_tree_add_item_format(tree, hf_portmap_prog,
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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,
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offset+4, 4, pntohl(&pd[offset+4]));
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proto = pntohl(&pd[offset+8]);
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proto_tree_add_item_format(tree, hf_portmap_proto,
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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,
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offset+12, 4, pntohl(&pd[offset+12]));
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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(const u_char *pd, int offset, frame_data *fd,
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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 ( !BYTES_ARE_IN_FRAME(offset, 16)) return offset;
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if ( tree )
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{
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prog = pntohl(&pd[offset+0]);
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proto_tree_add_item_format(tree, hf_portmap_prog,
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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,
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offset+4, 4, pntohl(&pd[offset+4]));
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proto = pntohl(&pd[offset+8]);
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proto_tree_add_item(tree, hf_portmap_proto,
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offset+8, 4, proto);
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proto_tree_add_item(tree, hf_portmap_port,
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offset+12, 4, pntohl(&pd[offset+12]));
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}
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return offset+16;
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}
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int dissect_set_reply(const u_char *pd, int offset, frame_data *fd,
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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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if ( !BYTES_ARE_IN_FRAME(offset, 4)) return offset;
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proto_tree_add_item(tree, hf_portmap_answer,
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offset, 4, pntohl(&pd[offset+0]));
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offset += 4;
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}
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return offset;
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}
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int dissect_dump_reply(const u_char *pd, int offset, frame_data *fd,
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proto_tree *tree)
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{
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int prog, version, proto, port, value_follows;
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proto_item *ti, *subtree;
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while ( BYTES_ARE_IN_FRAME(offset, 4) )
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{
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value_follows = pntohl(&pd[offset+0]);
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if ( tree )
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{
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proto_tree_add_item(tree, hf_portmap_value_follows,
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offset, 4, value_follows);
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}
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offset += 4;
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if ( value_follows )
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{
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if ( ! BYTES_ARE_IN_FRAME(offset, 16) )
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{
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break;
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}
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prog = pntohl(&pd[offset+0]);
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version = pntohl(&pd[offset+4]);
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proto = pntohl(&pd[offset+8]);
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port = pntohl(&pd[offset+12]);
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if ( tree )
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{
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ti = proto_tree_add_text(tree, offset, 16, "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_item_format(subtree, hf_portmap_prog,
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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_item(subtree, hf_portmap_version,
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offset+4, 4, version);
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proto_tree_add_item_format(subtree, hf_portmap_proto,
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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_item(subtree, hf_portmap_port,
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offset+12, 4, port);
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}
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offset += 16;
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}
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}
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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: take the generic one. */
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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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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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NULL, NULL },
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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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int dissect_rpcb(const u_char *pd, int offset, frame_data *fd, proto_tree *tree, int hfindex)
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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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guint32 version;
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if (tree) {
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rpcb_item = proto_tree_add_item(tree, hfindex,
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offset+0, END_OF_FRAME, NULL);
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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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if (!BYTES_ARE_IN_FRAME(offset, 4)) return offset;
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prog = EXTRACT_UINT(pd, offset + 0);
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if (rpcb_tree)
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proto_tree_add_item_format(rpcb_tree, hf_portmap_rpcb_prog,
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offset+0, 4, prog,
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"Program: %s (%u)", rpc_prog_name(prog), prog);
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offset += 4;
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if (!BYTES_ARE_IN_FRAME(offset, 4)) return offset;
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version = EXTRACT_UINT(pd, offset + 0);
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if (rpcb_tree)
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proto_tree_add_item(rpcb_tree, hf_portmap_rpcb_version,
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offset+0, 4, version);
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offset += 4;
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offset = dissect_rpc_string(pd, offset, fd, rpcb_tree, hf_portmap_rpcb_netid);
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offset = dissect_rpc_string(pd, offset, fd, rpcb_tree, hf_portmap_rpcb_addr);
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offset = dissect_rpc_string(pd, offset, fd, rpcb_tree, hf_portmap_rpcb_owner);
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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(const u_char *pd, int offset, frame_data *fd,
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proto_tree *tree)
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{
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offset = dissect_rpcb(pd, offset, fd, tree, hf_portmap_rpcb);
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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(const u_char *pd, int offset, frame_data *fd,
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proto_tree *tree)
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{
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offset = dissect_rpc_string(pd, offset, fd, tree, hf_portmap_uaddr);
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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(const u_char *pd, int offset, frame_data *fd,
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proto_tree *tree)
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{
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guint32 value_follows;
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while (1) {
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if (!BYTES_ARE_IN_FRAME(offset,4)) break;
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value_follows = EXTRACT_UINT(pd, offset+0);
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proto_tree_add_item(tree,hf_portmap_value_follows,
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offset+0, 4, value_follows);
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offset += 4;
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if (value_follows == 1) {
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offset = dissect_rpcb(pd, offset, fd, tree, hf_portmap_rpcb);
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}
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else {
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break;
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}
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}
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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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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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NULL, NULL },
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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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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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NULL, NULL },
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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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NULL, NULL },
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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_rpcb, {
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"RPCB", "portmap.rpcb", FT_NONE, 0,
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NULL, 0, "RPCB" }},
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{ &hf_portmap_rpcb_prog, {
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"Program", "portmap.rpcb.prog", FT_UINT32, BASE_DEC,
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NULL, 0, "Program" }},
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{ &hf_portmap_rpcb_version, {
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"Version", "portmap.rpcb.version", FT_UINT32, BASE_DEC,
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NULL, 0, "Version" }},
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{ &hf_portmap_rpcb_netid, {
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"Network Id", "portmap.rpcb.netid", FT_STRING, BASE_DEC,
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NULL, 0, "Network Id" }},
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{ &hf_portmap_rpcb_addr, {
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"Universal Address", "portmap.rpcb.addr", FT_STRING, BASE_DEC,
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NULL, 0, "Universal Address" }},
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{ &hf_portmap_rpcb_owner, {
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"Owner of this Service", "portmap.rpcb.owner", FT_STRING, BASE_DEC,
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NULL, 0, "Owner of this Service" }},
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{ &hf_portmap_uaddr, {
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"Universal Address", "portmap.uaddr", FT_STRING, BASE_DEC,
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NULL, 0, "Universal Address" }},
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{ &hf_portmap_value_follows, {
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"Value Follows", "portmap.value_follows", FT_BOOLEAN, BASE_NONE,
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&yesno, 0, "Value Follows" }},
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};
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static gint *ett[] = {
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&ett_portmap,
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&ett_portmap_rpcb,
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&ett_portmap_entry
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};
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proto_portmap = proto_register_protocol("Portmap", "portmap");
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proto_register_field_array(proto_portmap, hf, array_length(hf));
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proto_register_subtree_array(ett, array_length(ett));
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/* Register the protocol as RPC */
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rpc_init_prog(proto_portmap, PORTMAP_PROGRAM, ett_portmap);
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/* Register the procedure tables */
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rpc_init_proc_table(PORTMAP_PROGRAM, 1, portmap1_proc);
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rpc_init_proc_table(PORTMAP_PROGRAM, 2, portmap2_proc);
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rpc_init_proc_table(PORTMAP_PROGRAM, 3, portmap3_proc);
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rpc_init_proc_table(PORTMAP_PROGRAM, 4, portmap4_proc);
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}
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