forked from osmocom/wireshark
2083 lines
65 KiB
C
2083 lines
65 KiB
C
/* packet-batadv.c
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* Routines for B.A.T.M.A.N. Advanced dissection
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* Copyright 2008-2010 Sven Eckelmann <sven.eckelmann@gmx.de>
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*
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* $Id$
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*
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* Wireshark - Network traffic analyzer
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* By Gerald Combs <gerald@wireshark.org>
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* Copyright 1998 Gerald Combs
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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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, 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 <epan/packet.h>
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#include <epan/prefs.h>
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#include <epan/tap.h>
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#include <epan/addr_resolv.h>
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/* Start content from packet-batadv.h */
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#define ETH_P_BATMAN 0x4305
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#define BATADV_PACKET 0x01
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#define BATADV_ICMP 0x02
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#define BATADV_UNICAST 0x03
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#define BATADV_BCAST 0x04
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#define BATADV_VIS 0x05
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#define ECHO_REPLY 0
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#define DESTINATION_UNREACHABLE 3
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#define ECHO_REQUEST 8
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#define TTL_EXCEEDED 11
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#define BAT_RR_LEN 16
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struct batman_packet_v5 {
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guint8 packet_type;
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guint8 version; /* batman version field */
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guint8 flags; /* 0x40: DIRECTLINK flag, 0x20 VIS_SERVER flag... */
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guint8 ttl;
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guint8 gwflags; /* flags related to gateway functions: gateway class */
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guint8 tq;
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guint16 seqno;
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address orig;
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address prev_sender;
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guint8 num_hna;
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guint8 pad;
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};
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#define BATMAN_PACKET_V5_SIZE 22
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struct batman_packet_v7 {
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guint8 packet_type;
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guint8 version; /* batman version field */
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guint8 flags; /* 0x40: DIRECTLINK flag, 0x20 VIS_SERVER flag... */
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guint8 tq;
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guint16 seqno;
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address orig;
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address prev_sender;
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guint8 ttl;
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guint8 num_hna;
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};
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#define BATMAN_PACKET_V7_SIZE 20
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struct batman_packet_v9 {
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guint8 packet_type;
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guint8 version; /* batman version field */
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guint8 flags; /* 0x40: DIRECTLINK flag, 0x20 VIS_SERVER flag... */
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guint8 tq;
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guint16 seqno;
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address orig;
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address prev_sender;
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guint8 ttl;
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guint8 num_hna;
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guint8 gwflags;
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guint8 pad;
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};
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#define BATMAN_PACKET_V9_SIZE 22
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struct batman_packet_v10 {
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guint8 packet_type;
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guint8 version; /* batman version field */
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guint8 flags; /* 0x40: DIRECTLINK flag, 0x20 VIS_SERVER flag... */
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guint8 tq;
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guint32 seqno;
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address orig;
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address prev_sender;
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guint8 ttl;
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guint8 num_hna;
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guint8 gwflags;
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guint8 pad;
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};
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#define BATMAN_PACKET_V10_SIZE 24
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struct batman_packet_v11 {
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guint8 packet_type;
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guint8 version; /* batman version field */
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guint8 flags; /* 0x40: DIRECTLINK flag, 0x20 VIS_SERVER flag... */
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guint8 tq;
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guint32 seqno;
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address orig;
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address prev_sender;
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guint8 ttl;
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guint8 num_hna;
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};
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#define BATMAN_PACKET_V11_SIZE 22
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struct icmp_packet_v6 {
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guint8 packet_type;
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guint8 version; /* batman version field */
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guint8 msg_type; /* 0 = ECHO REPLY, 3 = DESTINATION_UNREACHABLE, 8 = ECHO_REQUEST, 11 = TTL exceeded */
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address dst;
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address orig;
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guint8 ttl;
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guint8 uid;
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guint16 seqno;
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};
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#define ICMP_PACKET_V6_SIZE 19
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struct icmp_packet_v7 {
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guint8 packet_type;
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guint8 version; /* batman version field */
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guint8 msg_type; /* 0 = ECHO REPLY, 3 = DESTINATION_UNREACHABLE, 8 = ECHO_REQUEST, 11 = TTL exceeded */
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guint8 ttl;
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address dst;
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address orig;
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guint16 seqno;
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guint8 uid;
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};
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#define ICMP_PACKET_V7_SIZE 19
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struct unicast_packet_v6 {
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guint8 packet_type;
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guint8 version;
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address dest;
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guint8 ttl;
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};
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#define UNICAST_PACKET_V6_SIZE 9
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struct bcast_packet_v6 {
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guint8 packet_type;
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guint8 version; /* batman version field */
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address orig;
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guint16 seqno;
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};
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#define BCAST_PACKET_V6_SIZE 10
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struct bcast_packet_v10 {
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guint8 packet_type;
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guint8 version; /* batman version field */
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address orig;
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guint8 ttl;
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guint32 seqno;
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};
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#define BCAST_PACKET_V10_SIZE 13
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struct vis_packet_v6 {
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guint8 packet_type;
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guint8 version; /* batman version field */
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guint8 vis_type; /* which type of vis-participant sent this? */
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guint8 seqno; /* sequence number */
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guint8 entries; /* number of entries behind this struct */
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guint8 ttl; /* TTL */
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address vis_orig; /* originator that informs about its neighbours */
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address target_orig; /* who should receive this packet */
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address sender_orig; /* who sent or rebroadcasted this packet */
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};
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#define VIS_PACKET_V6_SIZE 24
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struct vis_packet_v10 {
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guint8 packet_type;
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guint8 version; /* batman version field */
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guint8 vis_type; /* which type of vis-participant sent this? */
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guint8 entries; /* number of entries behind this struct */
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guint32 seqno; /* sequence number */
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guint8 ttl; /* TTL */
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address vis_orig; /* originator that informs about its neighbours */
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address target_orig; /* who should receive this packet */
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address sender_orig; /* who sent or rebroadcasted this packet */
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};
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#define VIS_PACKET_V10_SIZE 27
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#define VIS_ENTRY_V6_SIZE 7
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#define VIS_ENTRY_V8_SIZE 13
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#define VIS_TYPE_SERVER_SYNC 0
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#define VIS_TYPE_CLIENT_UPDATE 1
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/* End content from packet-batadv.h */
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/* trees */
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static gint ett_batadv_batman = -1;
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static gint ett_batadv_batman_flags = -1;
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static gint ett_batadv_batman_gwflags = -1;
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static gint ett_batadv_batman_hna = -1;
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static gint ett_batadv_bcast = -1;
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static gint ett_batadv_icmp = -1;
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static gint ett_batadv_icmp_rr = -1;
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static gint ett_batadv_unicast = -1;
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static gint ett_batadv_vis = -1;
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static gint ett_batadv_vis_entry = -1;
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/* hfs */
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static int hf_batadv_packet_type = -1;
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static int hf_batadv_batman_version = -1;
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static int hf_batadv_batman_flags = -1;
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static int hf_batadv_batman_ttl = -1;
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static int hf_batadv_batman_gwflags = -1;
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static int hf_batadv_batman_tq = -1;
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static int hf_batadv_batman_seqno = -1;
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static int hf_batadv_batman_seqno32 = -1;
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static int hf_batadv_batman_orig = -1;
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static int hf_batadv_batman_prev_sender = -1;
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static int hf_batadv_batman_num_hna = -1;
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static int hf_batadv_batman_pad = -1;
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static int hf_batadv_batman_hna = -1;
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static int hf_batadv_bcast_version = -1;
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static int hf_batadv_bcast_pad = -1;
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static int hf_batadv_bcast_orig = -1;
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static int hf_batadv_bcast_seqno = -1;
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static int hf_batadv_bcast_seqno32 = -1;
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static int hf_batadv_bcast_ttl = -1;
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static int hf_batadv_icmp_version = -1;
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static int hf_batadv_icmp_msg_type = -1;
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static int hf_batadv_icmp_dst = -1;
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static int hf_batadv_icmp_orig = -1;
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static int hf_batadv_icmp_ttl = -1;
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static int hf_batadv_icmp_uid = -1;
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static int hf_batadv_icmp_seqno = -1;
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static int hf_batadv_unicast_version = -1;
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static int hf_batadv_unicast_dst = -1;
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static int hf_batadv_unicast_ttl = -1;
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static int hf_batadv_vis_version = -1;
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static int hf_batadv_vis_type = -1;
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static int hf_batadv_vis_seqno = -1;
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static int hf_batadv_vis_seqno32 = -1;
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static int hf_batadv_vis_entries = -1;
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static int hf_batadv_vis_ttl = -1;
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static int hf_batadv_vis_vis_orig = -1;
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static int hf_batadv_vis_target_orig = -1;
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static int hf_batadv_vis_sender_orig = -1;
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static int hf_batadv_vis_entry_src = -1;
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static int hf_batadv_vis_entry_dst = -1;
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static int hf_batadv_vis_entry_quality = -1;
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/* flags */
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static int hf_batadv_batman_flags_directlink = -1;
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static int hf_batadv_batman_flags_vis_server = -1;
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static int hf_batadv_batman_flags_primaries_first_hop = -1;
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static const value_string icmp_packettypenames[] = {
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{ ECHO_REPLY, "ECHO_REPLY" },
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{ DESTINATION_UNREACHABLE, "DESTINATION UNREACHABLE" },
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{ ECHO_REQUEST, "ECHO_REQUEST" },
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{ TTL_EXCEEDED, "TTL exceeded" },
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{ 0, NULL }
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};
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static const value_string vis_packettypenames[] = {
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{ VIS_TYPE_SERVER_SYNC, "SERVER_SYNC" },
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{ VIS_TYPE_CLIENT_UPDATE, "CLIENT_UPDATE" },
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{ 0, NULL }
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};
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/* forward declaration */
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void proto_reg_handoff_batadv(void);
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static dissector_handle_t batman_handle;
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/* supported packet dissectors */
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static void dissect_batadv_batman(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree);
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static int dissect_batadv_batman_v5(tvbuff_t *tvb, int offset, packet_info *pinfo, proto_tree *tree);
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static int dissect_batadv_batman_v7(tvbuff_t *tvb, int offset, packet_info *pinfo, proto_tree *tree);
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static int dissect_batadv_batman_v9(tvbuff_t *tvb, int offset, packet_info *pinfo, proto_tree *tree);
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static int dissect_batadv_batman_v10(tvbuff_t *tvb, int offset, packet_info *pinfo, proto_tree *tree);
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static int dissect_batadv_batman_v11(tvbuff_t *tvb, int offset, packet_info *pinfo, proto_tree *tree);
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static void dissect_batadv_bcast(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree);
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static void dissect_batadv_bcast_v6(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree);
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static void dissect_batadv_bcast_v10(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree);
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static void dissect_batadv_icmp(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree);
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static void dissect_batadv_icmp_v6(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree);
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static void dissect_batadv_icmp_v7(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree);
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static void dissect_batadv_unicast(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree);
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static void dissect_batadv_unicast_v6(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree);
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static void dissect_batadv_vis(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree);
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static void dissect_batadv_vis_v6(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree);
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static void dissect_batadv_vis_v10(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree);
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static void dissect_batadv_hna(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree);
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static void dissect_vis_entry_v6(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree);
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static void dissect_vis_entry_v8(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree);
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/* other dissectors */
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static dissector_handle_t data_handle;
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static dissector_handle_t eth_handle;
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static int proto_batadv_plugin = -1;
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/* tap */
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static int batadv_tap = -1;
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static int batadv_follow_tap = -1;
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static unsigned int batadv_ethertype = ETH_P_BATMAN;
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static void dissect_batman_plugin(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree)
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{
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guint8 type;
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col_clear(pinfo->cinfo, COL_INFO);
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type = tvb_get_guint8(tvb, 0);
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switch (type) {
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case BATADV_PACKET:
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dissect_batadv_batman(tvb, pinfo, tree);
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break;
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case BATADV_ICMP:
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dissect_batadv_icmp(tvb, pinfo, tree);
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break;
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case BATADV_UNICAST:
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dissect_batadv_unicast(tvb, pinfo, tree);
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break;
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case BATADV_BCAST:
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dissect_batadv_bcast(tvb, pinfo, tree);
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break;
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case BATADV_VIS:
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dissect_batadv_vis(tvb, pinfo, tree);
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break;
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default:
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/* dunno */
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{
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tvbuff_t *next_tvb;
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guint length_remaining;
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col_set_str(pinfo->cinfo, COL_PROTOCOL, "BATADV_???");
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length_remaining = tvb_length_remaining(tvb, 1);
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next_tvb = tvb_new_subset(tvb, 0, length_remaining, -1);
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call_dissector(data_handle, next_tvb, pinfo, tree);
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break;
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}
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}
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}
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static void dissect_batadv_batman(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree)
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{
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guint8 version;
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int offset = 0;
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/* set protocol name */
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col_set_str(pinfo->cinfo, COL_PROTOCOL, "BATADV_BATMAN");
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version = tvb_get_guint8(tvb, 1);
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switch (version) {
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case 5:
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case 6:
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while (offset != -1 && tvb_length_remaining(tvb, offset) >= BATMAN_PACKET_V5_SIZE) {
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offset = dissect_batadv_batman_v5(tvb, offset, pinfo, tree);
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}
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break;
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case 7:
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case 8:
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while (offset != -1 && tvb_length_remaining(tvb, offset) >= BATMAN_PACKET_V7_SIZE) {
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offset = dissect_batadv_batman_v7(tvb, offset, pinfo, tree);
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}
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break;
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case 9:
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while (offset != -1 && tvb_length_remaining(tvb, offset) >= BATMAN_PACKET_V9_SIZE) {
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offset = dissect_batadv_batman_v9(tvb, offset, pinfo, tree);
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}
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break;
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case 10:
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while (offset != -1 && tvb_length_remaining(tvb, offset) >= BATMAN_PACKET_V10_SIZE) {
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offset = dissect_batadv_batman_v10(tvb, offset, pinfo, tree);
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}
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break;
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case 11:
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while (offset != -1 && tvb_length_remaining(tvb, offset) >= BATMAN_PACKET_V11_SIZE) {
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offset = dissect_batadv_batman_v11(tvb, offset, pinfo, tree);
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}
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break;
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default:
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col_add_fstr(pinfo->cinfo, COL_INFO, "Unsupported Version %d", version);
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call_dissector(data_handle, tvb, pinfo, tree);
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break;
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}
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}
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static void dissect_batadv_gwflags(tvbuff_t *tvb, guint8 gwflags, int offset, proto_item *tgw)
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{
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proto_tree *gwflags_tree;
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guint8 s = (gwflags & 0x80) >> 7;
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guint8 downbits = (gwflags & 0x78) >> 3;
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guint8 upbits = (gwflags & 0x07);
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guint down, up;
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if (gwflags == 0) {
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down = 0;
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up = 0;
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} else {
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down = 32 * (s + 2) * (1 << downbits);
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up = ((upbits + 1) * down) / 8;
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}
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gwflags_tree = proto_item_add_subtree(tgw, ett_batadv_batman_gwflags);
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proto_tree_add_text(gwflags_tree, tvb, offset, 1, "Download Speed: %dkbit", down);
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proto_tree_add_text(gwflags_tree, tvb, offset, 1, "Upload Speed: %dkbit", up);
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}
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static int dissect_batadv_batman_v5(tvbuff_t *tvb, int offset, packet_info *pinfo, proto_tree *tree)
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{
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proto_item *tf, *tgw;
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proto_tree *batadv_batman_tree = NULL, *flag_tree;
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guint8 type;
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struct batman_packet_v5 *batman_packeth;
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const guint8 *prev_sender_addr, *orig_addr;
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gint i;
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tvbuff_t *next_tvb;
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batman_packeth = ep_alloc(sizeof(struct batman_packet_v5));
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|
|
type = tvb_get_guint8(tvb, offset+0);
|
|
batman_packeth->version = tvb_get_guint8(tvb, offset+1);
|
|
|
|
/* don't interpret padding as B.A.T.M.A.N. advanced packet */
|
|
if (batman_packeth->version == 0 || type != BATADV_PACKET) {
|
|
return -1;
|
|
}
|
|
|
|
batman_packeth->flags = tvb_get_guint8(tvb, offset+2);
|
|
batman_packeth->ttl = tvb_get_guint8(tvb, offset+3);
|
|
batman_packeth->gwflags = tvb_get_guint8(tvb, offset+4);
|
|
batman_packeth->tq = tvb_get_guint8(tvb, offset+5);
|
|
batman_packeth->seqno = tvb_get_ntohs(tvb, offset+6);
|
|
orig_addr = tvb_get_ptr(tvb, offset+8, 6);
|
|
SET_ADDRESS(&batman_packeth->orig, AT_ETHER, 6, orig_addr);
|
|
prev_sender_addr = tvb_get_ptr(tvb, offset+14, 6);
|
|
SET_ADDRESS(&batman_packeth->prev_sender, AT_ETHER, 6, prev_sender_addr);
|
|
batman_packeth->num_hna = tvb_get_guint8(tvb, offset+20);
|
|
batman_packeth->pad = tvb_get_guint8(tvb, offset+21);
|
|
|
|
/* Set info column */
|
|
col_add_fstr(pinfo->cinfo, COL_INFO, "Seq=%u", batman_packeth->seqno);
|
|
|
|
/* Set tree info */
|
|
if (tree) {
|
|
proto_item *ti;
|
|
|
|
if (PTREE_DATA(tree)->visible) {
|
|
ti = proto_tree_add_protocol_format(tree, proto_batadv_plugin, tvb, offset, BATMAN_PACKET_V5_SIZE,
|
|
"B.A.T.M.A.N., Orig: %s (%s)",
|
|
get_ether_name(orig_addr), ether_to_str(orig_addr));
|
|
} else {
|
|
ti = proto_tree_add_item(tree, proto_batadv_plugin, tvb, offset, BATMAN_PACKET_V5_SIZE, FALSE);
|
|
}
|
|
batadv_batman_tree = proto_item_add_subtree(ti, ett_batadv_batman);
|
|
}
|
|
|
|
/* items */
|
|
proto_tree_add_uint_format(batadv_batman_tree, hf_batadv_packet_type, tvb, offset, 1, BATADV_PACKET,
|
|
"Packet Type: %s (%u)", "BATADV_PACKET", BATADV_PACKET);
|
|
offset += 1;
|
|
|
|
proto_tree_add_item(batadv_batman_tree, hf_batadv_batman_version, tvb, offset, 1, FALSE);
|
|
offset += 1;
|
|
|
|
tf = proto_tree_add_item(batadv_batman_tree, hf_batadv_batman_flags, tvb, offset, 1, FALSE);
|
|
/* <flags> */
|
|
flag_tree = proto_item_add_subtree(tf, ett_batadv_batman_flags);
|
|
proto_tree_add_boolean(flag_tree, hf_batadv_batman_flags_directlink, tvb, offset, 1, batman_packeth->flags);
|
|
proto_tree_add_boolean(flag_tree, hf_batadv_batman_flags_vis_server, tvb, offset, 1, batman_packeth->flags);
|
|
/* </flags> */
|
|
offset += 1;
|
|
|
|
proto_tree_add_item(batadv_batman_tree, hf_batadv_batman_ttl, tvb, offset, 1, FALSE);
|
|
offset += 1;
|
|
|
|
tgw = proto_tree_add_item(batadv_batman_tree, hf_batadv_batman_gwflags, tvb, offset, 1, FALSE);
|
|
dissect_batadv_gwflags(tvb, batman_packeth->gwflags, offset, tgw);
|
|
offset += 1;
|
|
|
|
proto_tree_add_item(batadv_batman_tree, hf_batadv_batman_tq, tvb, offset, 1, FALSE);
|
|
offset += 1;
|
|
|
|
proto_tree_add_item(batadv_batman_tree, hf_batadv_batman_seqno, tvb, offset, 2, FALSE);
|
|
offset += 2;
|
|
|
|
proto_tree_add_ether(batadv_batman_tree, hf_batadv_batman_orig, tvb, offset, 6, orig_addr);
|
|
offset += 6;
|
|
|
|
proto_tree_add_ether(batadv_batman_tree, hf_batadv_batman_prev_sender, tvb, offset, 6, prev_sender_addr);
|
|
offset += 6;
|
|
|
|
proto_tree_add_item(batadv_batman_tree, hf_batadv_batman_num_hna, tvb, offset, 1, FALSE);
|
|
offset += 1;
|
|
|
|
/* Hidden: proto_tree_add_item(batadv_batman_tree, hf_batadv_batman_pad, tvb, offset, 1, FALSE); */
|
|
offset += 1;
|
|
|
|
SET_ADDRESS(&pinfo->dl_src, AT_ETHER, 6, orig_addr);
|
|
SET_ADDRESS(&pinfo->src, AT_ETHER, 6, orig_addr);
|
|
|
|
tap_queue_packet(batadv_tap, pinfo, batman_packeth);
|
|
|
|
for (i = 0; i < batman_packeth->num_hna; i++) {
|
|
next_tvb = tvb_new_subset(tvb, offset, 6, 6);
|
|
|
|
if (have_tap_listener(batadv_follow_tap)) {
|
|
tap_queue_packet(batadv_follow_tap, pinfo, next_tvb);
|
|
}
|
|
|
|
dissect_batadv_hna(next_tvb, pinfo, batadv_batman_tree);
|
|
offset += 6;
|
|
}
|
|
|
|
return offset;
|
|
}
|
|
|
|
static int dissect_batadv_batman_v7(tvbuff_t *tvb, int offset, packet_info *pinfo, proto_tree *tree)
|
|
{
|
|
proto_item *tf;
|
|
proto_tree *batadv_batman_tree = NULL, *flag_tree;
|
|
guint8 type;
|
|
struct batman_packet_v7 *batman_packeth;
|
|
const guint8 *prev_sender_addr, *orig_addr;
|
|
gint i;
|
|
|
|
tvbuff_t *next_tvb;
|
|
|
|
batman_packeth = ep_alloc(sizeof(struct batman_packet_v7));
|
|
|
|
type = tvb_get_guint8(tvb, offset+0);
|
|
batman_packeth->version = tvb_get_guint8(tvb, offset+1);
|
|
|
|
/* don't interpret padding as B.A.T.M.A.N. advanced packet */
|
|
if (batman_packeth->version == 0 || type != BATADV_PACKET) {
|
|
return -1;
|
|
}
|
|
|
|
batman_packeth->flags = tvb_get_guint8(tvb, offset+2);
|
|
batman_packeth->tq = tvb_get_guint8(tvb, offset+3);
|
|
batman_packeth->seqno = tvb_get_ntohs(tvb, offset+4);
|
|
orig_addr = tvb_get_ptr(tvb, offset+6, 6);
|
|
SET_ADDRESS(&batman_packeth->orig, AT_ETHER, 6, orig_addr);
|
|
prev_sender_addr = tvb_get_ptr(tvb, offset+12, 6);
|
|
SET_ADDRESS(&batman_packeth->prev_sender, AT_ETHER, 6, prev_sender_addr);
|
|
batman_packeth->ttl = tvb_get_guint8(tvb, offset+18);
|
|
batman_packeth->num_hna = tvb_get_guint8(tvb, offset+19);
|
|
|
|
/* Set info column */
|
|
col_add_fstr(pinfo->cinfo, COL_INFO, "Seq=%u", batman_packeth->seqno);
|
|
|
|
/* Set tree info */
|
|
if (tree) {
|
|
proto_item *ti;
|
|
|
|
if (PTREE_DATA(tree)->visible) {
|
|
ti = proto_tree_add_protocol_format(tree, proto_batadv_plugin, tvb, offset, BATMAN_PACKET_V7_SIZE,
|
|
"B.A.T.M.A.N., Orig: %s (%s)",
|
|
get_ether_name(orig_addr), ether_to_str(orig_addr));
|
|
} else {
|
|
ti = proto_tree_add_item(tree, proto_batadv_plugin, tvb, offset, BATMAN_PACKET_V7_SIZE, FALSE);
|
|
}
|
|
batadv_batman_tree = proto_item_add_subtree(ti, ett_batadv_batman);
|
|
}
|
|
|
|
/* items */
|
|
proto_tree_add_uint_format(batadv_batman_tree, hf_batadv_packet_type, tvb, offset, 1, BATADV_PACKET,
|
|
"Packet Type: %s (%u)", "BATADV_PACKET", BATADV_PACKET);
|
|
offset += 1;
|
|
|
|
proto_tree_add_item(batadv_batman_tree, hf_batadv_batman_version, tvb, offset, 1, FALSE);
|
|
offset += 1;
|
|
|
|
tf = proto_tree_add_item(batadv_batman_tree, hf_batadv_batman_flags, tvb, offset, 1, FALSE);
|
|
/* <flags> */
|
|
flag_tree = proto_item_add_subtree(tf, ett_batadv_batman_flags);
|
|
proto_tree_add_boolean(flag_tree, hf_batadv_batman_flags_directlink, tvb, offset, 1, batman_packeth->flags);
|
|
proto_tree_add_boolean(flag_tree, hf_batadv_batman_flags_vis_server, tvb, offset, 1, batman_packeth->flags);
|
|
/* </flags> */
|
|
offset += 1;
|
|
|
|
proto_tree_add_item(batadv_batman_tree, hf_batadv_batman_tq, tvb, offset, 1, FALSE);
|
|
offset += 1;
|
|
|
|
proto_tree_add_item(batadv_batman_tree, hf_batadv_batman_seqno, tvb, offset, 2, FALSE);
|
|
offset += 2;
|
|
|
|
proto_tree_add_ether(batadv_batman_tree, hf_batadv_batman_orig, tvb, offset, 6, orig_addr);
|
|
offset += 6;
|
|
|
|
proto_tree_add_ether(batadv_batman_tree, hf_batadv_batman_prev_sender, tvb, offset, 6, prev_sender_addr);
|
|
offset += 6;
|
|
|
|
proto_tree_add_item(batadv_batman_tree, hf_batadv_batman_ttl, tvb, offset, 1, FALSE);
|
|
offset += 1;
|
|
|
|
proto_tree_add_item(batadv_batman_tree, hf_batadv_batman_num_hna, tvb, offset, 1, FALSE);
|
|
offset += 1;
|
|
|
|
SET_ADDRESS(&pinfo->dl_src, AT_ETHER, 6, orig_addr);
|
|
SET_ADDRESS(&pinfo->src, AT_ETHER, 6, orig_addr);
|
|
|
|
tap_queue_packet(batadv_tap, pinfo, batman_packeth);
|
|
|
|
for (i = 0; i < batman_packeth->num_hna; i++) {
|
|
next_tvb = tvb_new_subset(tvb, offset, 6, 6);
|
|
|
|
if (have_tap_listener(batadv_follow_tap)) {
|
|
tap_queue_packet(batadv_follow_tap, pinfo, next_tvb);
|
|
}
|
|
|
|
dissect_batadv_hna(next_tvb, pinfo, batadv_batman_tree);
|
|
offset += 6;
|
|
}
|
|
|
|
return offset;
|
|
}
|
|
|
|
static int dissect_batadv_batman_v9(tvbuff_t *tvb, int offset, packet_info *pinfo, proto_tree *tree)
|
|
{
|
|
proto_item *tf, *tgw;
|
|
proto_tree *batadv_batman_tree = NULL, *flag_tree;
|
|
guint8 type;
|
|
struct batman_packet_v9 *batman_packeth;
|
|
const guint8 *prev_sender_addr, *orig_addr;
|
|
gint i;
|
|
|
|
tvbuff_t *next_tvb;
|
|
|
|
batman_packeth = ep_alloc(sizeof(struct batman_packet_v9));
|
|
|
|
type = tvb_get_guint8(tvb, offset+0);
|
|
batman_packeth->version = tvb_get_guint8(tvb, offset+1);
|
|
|
|
/* don't interpret padding as B.A.T.M.A.N. advanced packet */
|
|
if (batman_packeth->version == 0 || type != BATADV_PACKET) {
|
|
return -1;
|
|
}
|
|
|
|
batman_packeth->flags = tvb_get_guint8(tvb, offset+2);
|
|
batman_packeth->tq = tvb_get_guint8(tvb, offset+3);
|
|
batman_packeth->seqno = tvb_get_ntohs(tvb, offset+4);
|
|
orig_addr = tvb_get_ptr(tvb, offset+6, 6);
|
|
SET_ADDRESS(&batman_packeth->orig, AT_ETHER, 6, orig_addr);
|
|
prev_sender_addr = tvb_get_ptr(tvb, offset+12, 6);
|
|
SET_ADDRESS(&batman_packeth->prev_sender, AT_ETHER, 6, prev_sender_addr);
|
|
batman_packeth->ttl = tvb_get_guint8(tvb, offset+18);
|
|
batman_packeth->num_hna = tvb_get_guint8(tvb, offset+19);
|
|
batman_packeth->gwflags = tvb_get_guint8(tvb, offset+20);
|
|
|
|
/* Set info column */
|
|
col_add_fstr(pinfo->cinfo, COL_INFO, "Seq=%u", batman_packeth->seqno);
|
|
|
|
/* Set tree info */
|
|
if (tree) {
|
|
proto_item *ti;
|
|
|
|
if (PTREE_DATA(tree)->visible) {
|
|
ti = proto_tree_add_protocol_format(tree, proto_batadv_plugin, tvb, offset, BATMAN_PACKET_V9_SIZE,
|
|
"B.A.T.M.A.N., Orig: %s (%s)",
|
|
get_ether_name(orig_addr), ether_to_str(orig_addr));
|
|
} else {
|
|
ti = proto_tree_add_item(tree, proto_batadv_plugin, tvb, offset, BATMAN_PACKET_V9_SIZE, FALSE);
|
|
}
|
|
batadv_batman_tree = proto_item_add_subtree(ti, ett_batadv_batman);
|
|
}
|
|
|
|
/* items */
|
|
proto_tree_add_uint_format(batadv_batman_tree, hf_batadv_packet_type, tvb, offset, 1, BATADV_PACKET,
|
|
"Packet Type: %s (%u)", "BATADV_PACKET", BATADV_PACKET);
|
|
offset += 1;
|
|
|
|
proto_tree_add_item(batadv_batman_tree, hf_batadv_batman_version, tvb, offset, 1, FALSE);
|
|
offset += 1;
|
|
|
|
tf = proto_tree_add_item(batadv_batman_tree, hf_batadv_batman_flags, tvb, offset, 1, FALSE);
|
|
/* <flags> */
|
|
flag_tree = proto_item_add_subtree(tf, ett_batadv_batman_flags);
|
|
proto_tree_add_boolean(flag_tree, hf_batadv_batman_flags_directlink, tvb, offset, 1, batman_packeth->flags);
|
|
proto_tree_add_boolean(flag_tree, hf_batadv_batman_flags_vis_server, tvb, offset, 1, batman_packeth->flags);
|
|
proto_tree_add_boolean(flag_tree, hf_batadv_batman_flags_primaries_first_hop, tvb, offset, 1, batman_packeth->flags);
|
|
/* </flags> */
|
|
offset += 1;
|
|
|
|
proto_tree_add_item(batadv_batman_tree, hf_batadv_batman_tq, tvb, offset, 1, FALSE);
|
|
offset += 1;
|
|
|
|
proto_tree_add_item(batadv_batman_tree, hf_batadv_batman_seqno, tvb, offset, 2, FALSE);
|
|
offset += 2;
|
|
|
|
proto_tree_add_ether(batadv_batman_tree, hf_batadv_batman_orig, tvb, offset, 6, orig_addr);
|
|
offset += 6;
|
|
|
|
proto_tree_add_ether(batadv_batman_tree, hf_batadv_batman_prev_sender, tvb, offset, 6, prev_sender_addr);
|
|
offset += 6;
|
|
|
|
proto_tree_add_item(batadv_batman_tree, hf_batadv_batman_ttl, tvb, offset, 1, FALSE);
|
|
offset += 1;
|
|
|
|
proto_tree_add_item(batadv_batman_tree, hf_batadv_batman_num_hna, tvb, offset, 1, FALSE);
|
|
offset += 1;
|
|
|
|
tgw = proto_tree_add_item(batadv_batman_tree, hf_batadv_batman_gwflags, tvb, offset, 1, FALSE);
|
|
dissect_batadv_gwflags(tvb, batman_packeth->gwflags, offset, tgw);
|
|
offset += 1;
|
|
|
|
/* Hidden: proto_tree_add_item(batadv_batman_tree, hf_batadv_batman_pad, tvb, offset, 1, FALSE); */
|
|
offset += 1;
|
|
|
|
SET_ADDRESS(&pinfo->dl_src, AT_ETHER, 6, orig_addr);
|
|
SET_ADDRESS(&pinfo->src, AT_ETHER, 6, orig_addr);
|
|
|
|
tap_queue_packet(batadv_tap, pinfo, batman_packeth);
|
|
|
|
for (i = 0; i < batman_packeth->num_hna; i++) {
|
|
next_tvb = tvb_new_subset(tvb, offset, 6, 6);
|
|
|
|
if (have_tap_listener(batadv_follow_tap)) {
|
|
tap_queue_packet(batadv_follow_tap, pinfo, next_tvb);
|
|
}
|
|
|
|
dissect_batadv_hna(next_tvb, pinfo, batadv_batman_tree);
|
|
offset += 6;
|
|
}
|
|
|
|
return offset;
|
|
}
|
|
|
|
static int dissect_batadv_batman_v10(tvbuff_t *tvb, int offset, packet_info *pinfo, proto_tree *tree)
|
|
{
|
|
proto_item *tf, *tgw;
|
|
proto_tree *batadv_batman_tree = NULL, *flag_tree;
|
|
guint8 type;
|
|
struct batman_packet_v10 *batman_packeth;
|
|
const guint8 *prev_sender_addr, *orig_addr;
|
|
gint i;
|
|
|
|
tvbuff_t *next_tvb;
|
|
|
|
batman_packeth = ep_alloc(sizeof(struct batman_packet_v10));
|
|
|
|
type = tvb_get_guint8(tvb, offset+0);
|
|
batman_packeth->version = tvb_get_guint8(tvb, offset+1);
|
|
|
|
/* don't interpret padding as B.A.T.M.A.N. advanced packet */
|
|
if (batman_packeth->version == 0 || type != BATADV_PACKET) {
|
|
return -1;
|
|
}
|
|
|
|
batman_packeth->flags = tvb_get_guint8(tvb, offset+2);
|
|
batman_packeth->tq = tvb_get_guint8(tvb, offset+3);
|
|
batman_packeth->seqno = tvb_get_ntohl(tvb, offset+4);
|
|
orig_addr = tvb_get_ptr(tvb, offset+8, 6);
|
|
SET_ADDRESS(&batman_packeth->orig, AT_ETHER, 6, orig_addr);
|
|
prev_sender_addr = tvb_get_ptr(tvb, offset+14, 6);
|
|
SET_ADDRESS(&batman_packeth->prev_sender, AT_ETHER, 6, prev_sender_addr);
|
|
batman_packeth->ttl = tvb_get_guint8(tvb, offset+20);
|
|
batman_packeth->num_hna = tvb_get_guint8(tvb, offset+21);
|
|
batman_packeth->gwflags = tvb_get_guint8(tvb, offset+22);
|
|
|
|
/* Set info column */
|
|
col_add_fstr(pinfo->cinfo, COL_INFO, "Seq=%u", batman_packeth->seqno);
|
|
|
|
/* Set tree info */
|
|
if (tree) {
|
|
proto_item *ti;
|
|
|
|
if (PTREE_DATA(tree)->visible) {
|
|
ti = proto_tree_add_protocol_format(tree, proto_batadv_plugin, tvb, offset, BATMAN_PACKET_V10_SIZE,
|
|
"B.A.T.M.A.N., Orig: %s (%s)",
|
|
get_ether_name(orig_addr), ether_to_str(orig_addr));
|
|
} else {
|
|
ti = proto_tree_add_item(tree, proto_batadv_plugin, tvb, offset, BATMAN_PACKET_V10_SIZE, FALSE);
|
|
}
|
|
batadv_batman_tree = proto_item_add_subtree(ti, ett_batadv_batman);
|
|
}
|
|
|
|
/* items */
|
|
proto_tree_add_uint_format(batadv_batman_tree, hf_batadv_packet_type, tvb, offset, 1, BATADV_PACKET,
|
|
"Packet Type: %s (%u)", "BATADV_PACKET", BATADV_PACKET);
|
|
offset += 1;
|
|
|
|
proto_tree_add_item(batadv_batman_tree, hf_batadv_batman_version, tvb, offset, 1, FALSE);
|
|
offset += 1;
|
|
|
|
tf = proto_tree_add_item(batadv_batman_tree, hf_batadv_batman_flags, tvb, offset, 1, FALSE);
|
|
/* <flags> */
|
|
flag_tree = proto_item_add_subtree(tf, ett_batadv_batman_flags);
|
|
proto_tree_add_boolean(flag_tree, hf_batadv_batman_flags_directlink, tvb, offset, 1, batman_packeth->flags);
|
|
proto_tree_add_boolean(flag_tree, hf_batadv_batman_flags_vis_server, tvb, offset, 1, batman_packeth->flags);
|
|
proto_tree_add_boolean(flag_tree, hf_batadv_batman_flags_primaries_first_hop, tvb, offset, 1, batman_packeth->flags);
|
|
/* </flags> */
|
|
offset += 1;
|
|
|
|
proto_tree_add_item(batadv_batman_tree, hf_batadv_batman_tq, tvb, offset, 1, FALSE);
|
|
offset += 1;
|
|
|
|
proto_tree_add_item(batadv_batman_tree, hf_batadv_batman_seqno32, tvb, offset, 4, FALSE);
|
|
offset += 4;
|
|
|
|
proto_tree_add_ether(batadv_batman_tree, hf_batadv_batman_orig, tvb, offset, 6, orig_addr);
|
|
offset += 6;
|
|
|
|
proto_tree_add_ether(batadv_batman_tree, hf_batadv_batman_prev_sender, tvb, offset, 6, prev_sender_addr);
|
|
offset += 6;
|
|
|
|
proto_tree_add_item(batadv_batman_tree, hf_batadv_batman_ttl, tvb, offset, 1, FALSE);
|
|
offset += 1;
|
|
|
|
proto_tree_add_item(batadv_batman_tree, hf_batadv_batman_num_hna, tvb, offset, 1, FALSE);
|
|
offset += 1;
|
|
|
|
tgw = proto_tree_add_item(batadv_batman_tree, hf_batadv_batman_gwflags, tvb, offset, 1, FALSE);
|
|
dissect_batadv_gwflags(tvb, batman_packeth->gwflags, offset, tgw);
|
|
offset += 1;
|
|
|
|
/* Hidden: proto_tree_add_item(batadv_batman_tree, hf_batadv_batman_pad, tvb, offset, 1, FALSE); */
|
|
offset += 1;
|
|
|
|
SET_ADDRESS(&pinfo->dl_src, AT_ETHER, 6, orig_addr);
|
|
SET_ADDRESS(&pinfo->src, AT_ETHER, 6, orig_addr);
|
|
|
|
tap_queue_packet(batadv_tap, pinfo, batman_packeth);
|
|
|
|
for (i = 0; i < batman_packeth->num_hna; i++) {
|
|
next_tvb = tvb_new_subset(tvb, offset, 6, 6);
|
|
|
|
if (have_tap_listener(batadv_follow_tap)) {
|
|
tap_queue_packet(batadv_follow_tap, pinfo, next_tvb);
|
|
}
|
|
|
|
dissect_batadv_hna(next_tvb, pinfo, batadv_batman_tree);
|
|
offset += 6;
|
|
}
|
|
|
|
return offset;
|
|
}
|
|
|
|
static int dissect_batadv_batman_v11(tvbuff_t *tvb, int offset, packet_info *pinfo, proto_tree *tree)
|
|
{
|
|
proto_item *tf;
|
|
proto_tree *batadv_batman_tree = NULL, *flag_tree;
|
|
guint8 type;
|
|
struct batman_packet_v11 *batman_packeth;
|
|
const guint8 *prev_sender_addr, *orig_addr;
|
|
gint i;
|
|
|
|
tvbuff_t *next_tvb;
|
|
|
|
batman_packeth = ep_alloc(sizeof(struct batman_packet_v11));
|
|
|
|
type = tvb_get_guint8(tvb, offset+0);
|
|
batman_packeth->version = tvb_get_guint8(tvb, offset+1);
|
|
|
|
/* don't interpret padding as B.A.T.M.A.N. advanced packet */
|
|
if (batman_packeth->version == 0 || type != BATADV_PACKET) {
|
|
return -1;
|
|
}
|
|
|
|
batman_packeth->flags = tvb_get_guint8(tvb, offset+2);
|
|
batman_packeth->tq = tvb_get_guint8(tvb, offset+3);
|
|
batman_packeth->seqno = tvb_get_ntohl(tvb, offset+4);
|
|
orig_addr = tvb_get_ptr(tvb, offset+8, 6);
|
|
SET_ADDRESS(&batman_packeth->orig, AT_ETHER, 6, orig_addr);
|
|
prev_sender_addr = tvb_get_ptr(tvb, offset+14, 6);
|
|
SET_ADDRESS(&batman_packeth->prev_sender, AT_ETHER, 6, prev_sender_addr);
|
|
batman_packeth->ttl = tvb_get_guint8(tvb, offset+20);
|
|
batman_packeth->num_hna = tvb_get_guint8(tvb, offset+21);
|
|
|
|
/* Set info column */
|
|
col_add_fstr(pinfo->cinfo, COL_INFO, "Seq=%u", batman_packeth->seqno);
|
|
|
|
/* Set tree info */
|
|
if (tree) {
|
|
proto_item *ti;
|
|
|
|
if (PTREE_DATA(tree)->visible) {
|
|
ti = proto_tree_add_protocol_format(tree, proto_batadv_plugin, tvb, offset, BATMAN_PACKET_V11_SIZE,
|
|
"B.A.T.M.A.N., Orig: %s (%s)",
|
|
get_ether_name(orig_addr), ether_to_str(orig_addr));
|
|
} else {
|
|
ti = proto_tree_add_item(tree, proto_batadv_plugin, tvb, offset, BATMAN_PACKET_V11_SIZE, FALSE);
|
|
}
|
|
batadv_batman_tree = proto_item_add_subtree(ti, ett_batadv_batman);
|
|
}
|
|
|
|
/* items */
|
|
proto_tree_add_uint_format(batadv_batman_tree, hf_batadv_packet_type, tvb, offset, 1, BATADV_PACKET,
|
|
"Packet Type: %s (%u)", "BATADV_PACKET", BATADV_PACKET);
|
|
offset += 1;
|
|
|
|
proto_tree_add_item(batadv_batman_tree, hf_batadv_batman_version, tvb, offset, 1, FALSE);
|
|
offset += 1;
|
|
|
|
tf = proto_tree_add_item(batadv_batman_tree, hf_batadv_batman_flags, tvb, offset, 1, FALSE);
|
|
/* <flags> */
|
|
flag_tree = proto_item_add_subtree(tf, ett_batadv_batman_flags);
|
|
proto_tree_add_boolean(flag_tree, hf_batadv_batman_flags_directlink, tvb, offset, 1, batman_packeth->flags);
|
|
proto_tree_add_boolean(flag_tree, hf_batadv_batman_flags_vis_server, tvb, offset, 1, batman_packeth->flags);
|
|
proto_tree_add_boolean(flag_tree, hf_batadv_batman_flags_primaries_first_hop, tvb, offset, 1, batman_packeth->flags);
|
|
/* </flags> */
|
|
offset += 1;
|
|
|
|
proto_tree_add_item(batadv_batman_tree, hf_batadv_batman_tq, tvb, offset, 1, FALSE);
|
|
offset += 1;
|
|
|
|
proto_tree_add_item(batadv_batman_tree, hf_batadv_batman_seqno32, tvb, offset, 4, FALSE);
|
|
offset += 4;
|
|
|
|
proto_tree_add_ether(batadv_batman_tree, hf_batadv_batman_orig, tvb, offset, 6, orig_addr);
|
|
offset += 6;
|
|
|
|
proto_tree_add_ether(batadv_batman_tree, hf_batadv_batman_prev_sender, tvb, offset, 6, prev_sender_addr);
|
|
offset += 6;
|
|
|
|
proto_tree_add_item(batadv_batman_tree, hf_batadv_batman_ttl, tvb, offset, 1, FALSE);
|
|
offset += 1;
|
|
|
|
proto_tree_add_item(batadv_batman_tree, hf_batadv_batman_num_hna, tvb, offset, 1, FALSE);
|
|
offset += 1;
|
|
|
|
SET_ADDRESS(&pinfo->dl_src, AT_ETHER, 6, orig_addr);
|
|
SET_ADDRESS(&pinfo->src, AT_ETHER, 6, orig_addr);
|
|
|
|
tap_queue_packet(batadv_tap, pinfo, batman_packeth);
|
|
|
|
for (i = 0; i < batman_packeth->num_hna; i++) {
|
|
next_tvb = tvb_new_subset(tvb, offset, 6, 6);
|
|
|
|
if (have_tap_listener(batadv_follow_tap)) {
|
|
tap_queue_packet(batadv_follow_tap, pinfo, next_tvb);
|
|
}
|
|
|
|
dissect_batadv_hna(next_tvb, pinfo, batadv_batman_tree);
|
|
offset += 6;
|
|
}
|
|
|
|
return offset;
|
|
}
|
|
|
|
static void dissect_batadv_hna(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree)
|
|
{
|
|
const guint8 *hna;
|
|
|
|
hna = tvb_get_ptr(tvb, 0, 6);
|
|
|
|
/* Set tree info */
|
|
if (tree) {
|
|
proto_item *ti;
|
|
proto_tree *batadv_batman_hna_tree;
|
|
|
|
if (PTREE_DATA(tree)->visible) {
|
|
ti = proto_tree_add_protocol_format(tree, proto_batadv_plugin, tvb, 0, 6,
|
|
"B.A.T.M.A.N. HNA: %s (%s)",
|
|
get_ether_name(hna), ether_to_str(hna));
|
|
} else {
|
|
ti = proto_tree_add_item(tree, proto_batadv_plugin, tvb, 0, 6, FALSE);
|
|
}
|
|
batadv_batman_hna_tree = proto_item_add_subtree(ti, ett_batadv_batman_hna);
|
|
|
|
proto_tree_add_ether(batadv_batman_hna_tree, hf_batadv_batman_hna, tvb, 0, 6, hna);
|
|
}
|
|
}
|
|
|
|
static void dissect_batadv_bcast(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree)
|
|
{
|
|
guint8 version;
|
|
|
|
/* set protocol name */
|
|
col_set_str(pinfo->cinfo, COL_PROTOCOL, "BATADV_BCAST");
|
|
|
|
version = tvb_get_guint8(tvb, 1);
|
|
switch (version) {
|
|
case 6:
|
|
case 7:
|
|
case 8:
|
|
case 9:
|
|
dissect_batadv_bcast_v6(tvb, pinfo, tree);
|
|
break;
|
|
case 10:
|
|
case 11:
|
|
dissect_batadv_bcast_v10(tvb, pinfo, tree);
|
|
break;
|
|
default:
|
|
col_add_fstr(pinfo->cinfo, COL_INFO, "Unsupported Version %d", version);
|
|
call_dissector(data_handle, tvb, pinfo, tree);
|
|
break;
|
|
}
|
|
}
|
|
|
|
static void dissect_batadv_bcast_v6(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree)
|
|
{
|
|
struct bcast_packet_v6 *bcast_packeth;
|
|
const guint8 *orig_addr;
|
|
|
|
tvbuff_t *next_tvb;
|
|
guint length_remaining;
|
|
int offset = 0;
|
|
|
|
bcast_packeth = ep_alloc(sizeof(struct bcast_packet_v6));
|
|
|
|
bcast_packeth->version = tvb_get_guint8(tvb, 1);
|
|
orig_addr = tvb_get_ptr(tvb, 2, 6);
|
|
SET_ADDRESS(&bcast_packeth->orig, AT_ETHER, 6, orig_addr);
|
|
bcast_packeth->seqno = tvb_get_ntohs(tvb, 8);
|
|
|
|
/* Set info column */
|
|
col_add_fstr(pinfo->cinfo, COL_INFO, "Seq=%u", bcast_packeth->seqno);
|
|
|
|
/* Set tree info */
|
|
if (tree) {
|
|
proto_item *ti;
|
|
proto_tree *batadv_bcast_tree;
|
|
|
|
if (PTREE_DATA(tree)->visible) {
|
|
ti = proto_tree_add_protocol_format(tree, proto_batadv_plugin, tvb, 0, BCAST_PACKET_V6_SIZE,
|
|
"B.A.T.M.A.N. Bcast, Orig: %s (%s)",
|
|
get_ether_name(orig_addr), ether_to_str(orig_addr));
|
|
} else {
|
|
ti = proto_tree_add_item(tree, proto_batadv_plugin, tvb, 0, BCAST_PACKET_V6_SIZE, FALSE);
|
|
}
|
|
batadv_bcast_tree = proto_item_add_subtree(ti, ett_batadv_bcast);
|
|
|
|
/* items */
|
|
proto_tree_add_uint_format(batadv_bcast_tree, hf_batadv_packet_type, tvb, offset, 1, BATADV_BCAST,
|
|
"Packet Type: %s (%u)", "BATADV_BCAST", BATADV_BCAST);
|
|
offset += 1;
|
|
|
|
proto_tree_add_item(batadv_bcast_tree, hf_batadv_bcast_version, tvb, offset, 1, FALSE);
|
|
offset += 1;
|
|
|
|
proto_tree_add_ether(batadv_bcast_tree, hf_batadv_bcast_orig, tvb, offset, 6, orig_addr);
|
|
offset += 6;
|
|
|
|
proto_tree_add_item(batadv_bcast_tree, hf_batadv_bcast_seqno, tvb, offset, 2, FALSE);
|
|
offset += 2;
|
|
}
|
|
|
|
/* Calculate offset even when we got no tree */
|
|
offset = BCAST_PACKET_V6_SIZE;
|
|
|
|
SET_ADDRESS(&pinfo->dl_src, AT_ETHER, 6, orig_addr);
|
|
SET_ADDRESS(&pinfo->src, AT_ETHER, 6, orig_addr);
|
|
|
|
tap_queue_packet(batadv_tap, pinfo, bcast_packeth);
|
|
|
|
length_remaining = tvb_length_remaining(tvb, offset);
|
|
|
|
if (length_remaining != 0) {
|
|
next_tvb = tvb_new_subset(tvb, offset, length_remaining, -1);
|
|
|
|
if (have_tap_listener(batadv_follow_tap)) {
|
|
tap_queue_packet(batadv_follow_tap, pinfo, next_tvb);
|
|
}
|
|
|
|
call_dissector(eth_handle, next_tvb, pinfo, tree);
|
|
}
|
|
}
|
|
|
|
static void dissect_batadv_bcast_v10(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree)
|
|
{
|
|
struct bcast_packet_v10 *bcast_packeth;
|
|
const guint8 *orig_addr;
|
|
|
|
tvbuff_t *next_tvb;
|
|
guint length_remaining;
|
|
int offset = 0;
|
|
|
|
bcast_packeth = ep_alloc(sizeof(struct bcast_packet_v10));
|
|
|
|
bcast_packeth->version = tvb_get_guint8(tvb, 1);
|
|
orig_addr = tvb_get_ptr(tvb, 2, 6);
|
|
SET_ADDRESS(&bcast_packeth->orig, AT_ETHER, 6, orig_addr);
|
|
bcast_packeth->ttl = tvb_get_guint8(tvb, 8);
|
|
bcast_packeth->seqno = tvb_get_ntohl(tvb, 9);
|
|
|
|
/* Set info column */
|
|
col_add_fstr(pinfo->cinfo, COL_INFO, "Seq=%u", bcast_packeth->seqno);
|
|
|
|
/* Set tree info */
|
|
if (tree) {
|
|
proto_item *ti;
|
|
proto_tree *batadv_bcast_tree;
|
|
|
|
if (PTREE_DATA(tree)->visible) {
|
|
ti = proto_tree_add_protocol_format(tree, proto_batadv_plugin, tvb, 0, BCAST_PACKET_V10_SIZE,
|
|
"B.A.T.M.A.N. Bcast, Orig: %s (%s)",
|
|
get_ether_name(orig_addr), ether_to_str(orig_addr));
|
|
} else {
|
|
ti = proto_tree_add_item(tree, proto_batadv_plugin, tvb, 0, BCAST_PACKET_V10_SIZE, FALSE);
|
|
}
|
|
batadv_bcast_tree = proto_item_add_subtree(ti, ett_batadv_bcast);
|
|
|
|
/* items */
|
|
proto_tree_add_uint_format(batadv_bcast_tree, hf_batadv_packet_type, tvb, offset, 1, BATADV_BCAST,
|
|
"Packet Type: %s (%u)", "BATADV_BCAST", BATADV_BCAST);
|
|
offset += 1;
|
|
|
|
proto_tree_add_item(batadv_bcast_tree, hf_batadv_bcast_version, tvb, offset, 1, FALSE);
|
|
offset += 1;
|
|
|
|
proto_tree_add_ether(batadv_bcast_tree, hf_batadv_bcast_orig, tvb, offset, 6, orig_addr);
|
|
offset += 6;
|
|
|
|
proto_tree_add_item(batadv_bcast_tree, hf_batadv_bcast_ttl, tvb, offset, 1, FALSE);
|
|
offset += 1;
|
|
|
|
proto_tree_add_item(batadv_bcast_tree, hf_batadv_bcast_seqno32, tvb, offset, 4, FALSE);
|
|
offset += 4;
|
|
}
|
|
|
|
/* Calculate offset even when we got no tree */
|
|
offset = BCAST_PACKET_V10_SIZE;
|
|
|
|
SET_ADDRESS(&pinfo->dl_src, AT_ETHER, 6, orig_addr);
|
|
SET_ADDRESS(&pinfo->src, AT_ETHER, 6, orig_addr);
|
|
|
|
tap_queue_packet(batadv_tap, pinfo, bcast_packeth);
|
|
|
|
length_remaining = tvb_length_remaining(tvb, offset);
|
|
|
|
if (length_remaining != 0) {
|
|
next_tvb = tvb_new_subset(tvb, offset, length_remaining, -1);
|
|
|
|
if (have_tap_listener(batadv_follow_tap)) {
|
|
tap_queue_packet(batadv_follow_tap, pinfo, next_tvb);
|
|
}
|
|
|
|
call_dissector(eth_handle, next_tvb, pinfo, tree);
|
|
}
|
|
}
|
|
|
|
static void dissect_batadv_icmp(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree)
|
|
{
|
|
guint8 version;
|
|
|
|
/* set protocol name */
|
|
col_set_str(pinfo->cinfo, COL_PROTOCOL, "BATADV_ICMP");
|
|
|
|
version = tvb_get_guint8(tvb, 1);
|
|
switch (version) {
|
|
case 6:
|
|
dissect_batadv_icmp_v6(tvb, pinfo, tree);
|
|
break;
|
|
case 7:
|
|
case 8:
|
|
case 9:
|
|
case 10:
|
|
case 11:
|
|
dissect_batadv_icmp_v7(tvb, pinfo, tree);
|
|
break;
|
|
default:
|
|
col_add_fstr(pinfo->cinfo, COL_INFO, "Unsupported Version %d", version);
|
|
call_dissector(data_handle, tvb, pinfo, tree);
|
|
break;
|
|
}
|
|
}
|
|
|
|
static void dissect_batadv_icmp_v6(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree)
|
|
{
|
|
struct icmp_packet_v6 *icmp_packeth;
|
|
const guint8 *dst_addr, *orig_addr;
|
|
|
|
tvbuff_t *next_tvb;
|
|
guint length_remaining;
|
|
int offset = 0;
|
|
|
|
icmp_packeth = ep_alloc(sizeof(struct icmp_packet_v6));
|
|
|
|
icmp_packeth->version = tvb_get_guint8(tvb, 1);
|
|
icmp_packeth->msg_type = tvb_get_guint8(tvb, 2);
|
|
dst_addr = tvb_get_ptr(tvb, 3, 6);
|
|
SET_ADDRESS(&icmp_packeth->dst, AT_ETHER, 6, dst_addr);
|
|
orig_addr = tvb_get_ptr(tvb, 9, 6);
|
|
SET_ADDRESS(&icmp_packeth->orig, AT_ETHER, 6, orig_addr);
|
|
icmp_packeth->ttl = tvb_get_guint8(tvb, 15);
|
|
icmp_packeth->uid = tvb_get_guint8(tvb, 16);
|
|
icmp_packeth->seqno = tvb_get_ntohs(tvb, 17);
|
|
|
|
/* Set info column */
|
|
if (check_col(pinfo->cinfo, COL_INFO)) {
|
|
col_add_fstr(pinfo->cinfo, COL_INFO, "[%s] Seq=%u",
|
|
val_to_str(icmp_packeth->msg_type, icmp_packettypenames, "Unknown (0x%02x)"),
|
|
icmp_packeth->seqno);
|
|
}
|
|
/* Set tree info */
|
|
if (tree) {
|
|
proto_item *ti;
|
|
proto_tree *batadv_icmp_tree;
|
|
|
|
if (PTREE_DATA(tree)->visible) {
|
|
ti = proto_tree_add_protocol_format(tree, proto_batadv_plugin, tvb, 0, ICMP_PACKET_V6_SIZE,
|
|
"B.A.T.M.A.N. ICMP, Orig: %s (%s), Dst: %s (%s)",
|
|
get_ether_name(orig_addr), ether_to_str(orig_addr), get_ether_name(dst_addr), ether_to_str(dst_addr));
|
|
} else {
|
|
ti = proto_tree_add_item(tree, proto_batadv_plugin, tvb, 0, ICMP_PACKET_V6_SIZE, FALSE);
|
|
}
|
|
batadv_icmp_tree = proto_item_add_subtree(ti, ett_batadv_icmp);
|
|
|
|
/* items */
|
|
proto_tree_add_uint_format(batadv_icmp_tree, hf_batadv_packet_type, tvb, offset, 1, BATADV_ICMP,
|
|
"Packet Type: %s (%u)", "BATADV_ICMP", BATADV_ICMP);
|
|
offset += 1;
|
|
|
|
proto_tree_add_item(batadv_icmp_tree, hf_batadv_icmp_version, tvb, offset, 1, FALSE);
|
|
offset += 1;
|
|
|
|
proto_tree_add_item(batadv_icmp_tree, hf_batadv_icmp_msg_type, tvb, offset, 1, FALSE);
|
|
offset += 1;
|
|
|
|
proto_tree_add_ether(batadv_icmp_tree, hf_batadv_icmp_dst, tvb, offset, 6, dst_addr);
|
|
offset += 6;
|
|
|
|
proto_tree_add_ether(batadv_icmp_tree, hf_batadv_icmp_orig, tvb, offset, 6, orig_addr);
|
|
offset += 6;
|
|
|
|
proto_tree_add_item(batadv_icmp_tree, hf_batadv_icmp_ttl, tvb, offset, 1, FALSE);
|
|
offset += 1;
|
|
|
|
proto_tree_add_item(batadv_icmp_tree, hf_batadv_icmp_uid, tvb, offset, 1, FALSE);
|
|
offset += 1;
|
|
|
|
proto_tree_add_item(batadv_icmp_tree, hf_batadv_icmp_seqno, tvb, offset, 2, FALSE);
|
|
offset += 2;
|
|
}
|
|
|
|
/* Calculate offset even when we got no tree */
|
|
offset = ICMP_PACKET_V6_SIZE;
|
|
|
|
SET_ADDRESS(&pinfo->dl_src, AT_ETHER, 6, orig_addr);
|
|
SET_ADDRESS(&pinfo->src, AT_ETHER, 6, orig_addr);
|
|
|
|
SET_ADDRESS(&pinfo->dl_dst, AT_ETHER, 6, orig_addr);
|
|
SET_ADDRESS(&pinfo->dst, AT_ETHER, 6, orig_addr);
|
|
|
|
tap_queue_packet(batadv_tap, pinfo, icmp_packeth);
|
|
|
|
length_remaining = tvb_length_remaining(tvb, offset);
|
|
|
|
if (length_remaining != 0) {
|
|
next_tvb = tvb_new_subset(tvb, offset, length_remaining, -1);
|
|
|
|
call_dissector(data_handle, next_tvb, pinfo, tree);
|
|
}
|
|
}
|
|
|
|
static void
|
|
dissect_batadv_icmp_rr(proto_tree *batadv_icmp_tree, tvbuff_t *tvb, int offset)
|
|
{
|
|
proto_tree *field_tree = NULL;
|
|
proto_item *tf;
|
|
int ptr, i;
|
|
const guint8 *addr;
|
|
|
|
ptr = tvb_get_guint8(tvb, offset);
|
|
if (ptr < 1 || ptr > BAT_RR_LEN)
|
|
return;
|
|
|
|
tf = proto_tree_add_text(batadv_icmp_tree, tvb, offset, 1+ 6 * BAT_RR_LEN, "ICMP RR");
|
|
field_tree = proto_item_add_subtree(tf, ett_batadv_icmp_rr);
|
|
proto_tree_add_text(field_tree, tvb, offset, 1, "Pointer: %d", ptr);
|
|
|
|
ptr--;
|
|
offset++;
|
|
for (i = 0; i < BAT_RR_LEN; i++) {
|
|
addr = tvb_get_ptr(tvb, offset, 6);
|
|
proto_tree_add_text(field_tree, tvb, offset, 6, "%s%s",
|
|
(i > ptr) ? "-" : ether_to_str(addr),
|
|
(i == ptr) ? " <- (current)" : "");
|
|
|
|
offset += 6;
|
|
}
|
|
}
|
|
|
|
static void dissect_batadv_icmp_v7(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree)
|
|
{
|
|
struct icmp_packet_v7 *icmp_packeth;
|
|
const guint8 *dst_addr, *orig_addr;
|
|
proto_item *ti;
|
|
proto_tree *batadv_icmp_tree = NULL;
|
|
|
|
tvbuff_t *next_tvb;
|
|
guint length_remaining;
|
|
int offset = 0;
|
|
|
|
icmp_packeth = ep_alloc(sizeof(struct icmp_packet_v7));
|
|
|
|
icmp_packeth->version = tvb_get_guint8(tvb, 1);
|
|
icmp_packeth->msg_type = tvb_get_guint8(tvb, 2);
|
|
icmp_packeth->ttl = tvb_get_guint8(tvb, 3);
|
|
dst_addr = tvb_get_ptr(tvb, 4, 6);
|
|
SET_ADDRESS(&icmp_packeth->dst, AT_ETHER, 6, dst_addr);
|
|
orig_addr = tvb_get_ptr(tvb, 10, 6);
|
|
SET_ADDRESS(&icmp_packeth->orig, AT_ETHER, 6, orig_addr);
|
|
icmp_packeth->seqno = tvb_get_ntohs(tvb, 16);
|
|
icmp_packeth->uid = tvb_get_guint8(tvb, 17);
|
|
|
|
/* Set info column */
|
|
if (check_col(pinfo->cinfo, COL_INFO)) {
|
|
col_add_fstr(pinfo->cinfo, COL_INFO, "[%s] Seq=%u",
|
|
val_to_str(icmp_packeth->msg_type, icmp_packettypenames, "Unknown (0x%02x)"),
|
|
icmp_packeth->seqno);
|
|
}
|
|
|
|
/* Set tree info */
|
|
if (tree) {
|
|
if (PTREE_DATA(tree)->visible) {
|
|
ti = proto_tree_add_protocol_format(tree, proto_batadv_plugin, tvb, 0, ICMP_PACKET_V7_SIZE,
|
|
"B.A.T.M.A.N. ICMP, Orig: %s (%s), Dst: %s (%s)",
|
|
get_ether_name(orig_addr), ether_to_str(orig_addr), get_ether_name(dst_addr), ether_to_str(dst_addr));
|
|
} else {
|
|
ti = proto_tree_add_item(tree, proto_batadv_plugin, tvb, 0, ICMP_PACKET_V7_SIZE, FALSE);
|
|
}
|
|
batadv_icmp_tree = proto_item_add_subtree(ti, ett_batadv_icmp);
|
|
}
|
|
|
|
/* items */
|
|
proto_tree_add_uint_format(batadv_icmp_tree, hf_batadv_packet_type, tvb, offset, 1, BATADV_ICMP,
|
|
"Packet Type: %s (%u)", "BATADV_ICMP", BATADV_ICMP);
|
|
offset += 1;
|
|
|
|
proto_tree_add_item(batadv_icmp_tree, hf_batadv_icmp_version, tvb, offset, 1, FALSE);
|
|
offset += 1;
|
|
|
|
proto_tree_add_item(batadv_icmp_tree, hf_batadv_icmp_msg_type, tvb, offset, 1, FALSE);
|
|
offset += 1;
|
|
|
|
proto_tree_add_item(batadv_icmp_tree, hf_batadv_icmp_ttl, tvb, offset, 1, FALSE);
|
|
offset += 1;
|
|
|
|
proto_tree_add_ether(batadv_icmp_tree, hf_batadv_icmp_dst, tvb, offset, 6, dst_addr);
|
|
offset += 6;
|
|
|
|
proto_tree_add_ether(batadv_icmp_tree, hf_batadv_icmp_orig, tvb, offset, 6, orig_addr);
|
|
offset += 6;
|
|
|
|
proto_tree_add_item(batadv_icmp_tree, hf_batadv_icmp_seqno, tvb, offset, 2, FALSE);
|
|
offset += 2;
|
|
|
|
proto_tree_add_item(batadv_icmp_tree, hf_batadv_icmp_uid, tvb, offset, 1, FALSE);
|
|
offset += 1;
|
|
|
|
/* rr data available? */
|
|
length_remaining = tvb_length_remaining(tvb, offset);
|
|
if (length_remaining >= 1 + BAT_RR_LEN * 6) {
|
|
dissect_batadv_icmp_rr(batadv_icmp_tree, tvb, offset);
|
|
offset += 1 + BAT_RR_LEN * 6;
|
|
}
|
|
|
|
SET_ADDRESS(&pinfo->dl_src, AT_ETHER, 6, orig_addr);
|
|
SET_ADDRESS(&pinfo->src, AT_ETHER, 6, orig_addr);
|
|
|
|
SET_ADDRESS(&pinfo->dl_dst, AT_ETHER, 6, orig_addr);
|
|
SET_ADDRESS(&pinfo->dst, AT_ETHER, 6, orig_addr);
|
|
|
|
tap_queue_packet(batadv_tap, pinfo, icmp_packeth);
|
|
|
|
length_remaining = tvb_length_remaining(tvb, offset);
|
|
|
|
if (length_remaining != 0) {
|
|
next_tvb = tvb_new_subset(tvb, offset, length_remaining, -1);
|
|
|
|
call_dissector(data_handle, next_tvb, pinfo, tree);
|
|
}
|
|
}
|
|
|
|
static void dissect_batadv_unicast(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree)
|
|
{
|
|
guint8 version;
|
|
|
|
/* set protocol name */
|
|
col_set_str(pinfo->cinfo, COL_PROTOCOL, "BATADV_UNICAST");
|
|
|
|
version = tvb_get_guint8(tvb, 1);
|
|
switch (version) {
|
|
case 6:
|
|
case 7:
|
|
case 8:
|
|
case 9:
|
|
case 10:
|
|
case 11:
|
|
dissect_batadv_unicast_v6(tvb, pinfo, tree);
|
|
break;
|
|
default:
|
|
col_add_fstr(pinfo->cinfo, COL_INFO, "Unsupported Version %d", version);
|
|
call_dissector(data_handle, tvb, pinfo, tree);
|
|
break;
|
|
}
|
|
}
|
|
|
|
static void dissect_batadv_unicast_v6(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree)
|
|
{
|
|
struct unicast_packet_v6 *unicast_packeth;
|
|
const guint8 *dest_addr;
|
|
|
|
tvbuff_t *next_tvb;
|
|
guint length_remaining;
|
|
int offset = 0;
|
|
|
|
unicast_packeth = ep_alloc(sizeof(struct unicast_packet_v6));
|
|
|
|
unicast_packeth->version = tvb_get_guint8(tvb, 1);
|
|
dest_addr = tvb_get_ptr(tvb, 2, 6);
|
|
SET_ADDRESS(&unicast_packeth->dest, AT_ETHER, 6, dest_addr);
|
|
unicast_packeth->ttl = tvb_get_guint8(tvb, 8);
|
|
|
|
/* Set info column */
|
|
col_clear(pinfo->cinfo, COL_INFO);
|
|
|
|
/* Set tree info */
|
|
if (tree) {
|
|
proto_item *ti;
|
|
proto_tree *batadv_unicast_tree;
|
|
|
|
if (PTREE_DATA(tree)->visible) {
|
|
ti = proto_tree_add_protocol_format(tree, proto_batadv_plugin, tvb, 0, UNICAST_PACKET_V6_SIZE,
|
|
"B.A.T.M.A.N. Unicast, Dst: %s (%s)",
|
|
get_ether_name(dest_addr), ether_to_str(dest_addr));
|
|
} else {
|
|
ti = proto_tree_add_item(tree, proto_batadv_plugin, tvb, 0, UNICAST_PACKET_V6_SIZE, FALSE);
|
|
}
|
|
batadv_unicast_tree = proto_item_add_subtree(ti, ett_batadv_unicast);
|
|
|
|
/* items */
|
|
proto_tree_add_uint_format(batadv_unicast_tree, hf_batadv_packet_type, tvb, offset, 1, BATADV_UNICAST,
|
|
"Packet Type: %s (%u)", "BATADV_UNICAST", BATADV_UNICAST);
|
|
offset += 1;
|
|
|
|
proto_tree_add_item(batadv_unicast_tree, hf_batadv_unicast_version, tvb, offset, 1, FALSE);
|
|
offset += 1;
|
|
|
|
proto_tree_add_ether(batadv_unicast_tree, hf_batadv_unicast_dst, tvb, offset, 6, dest_addr);
|
|
offset += 6;
|
|
|
|
proto_tree_add_item(batadv_unicast_tree, hf_batadv_unicast_ttl, tvb, offset, 1, FALSE);
|
|
offset += 1;
|
|
}
|
|
|
|
/* Calculate offset even when we got no tree */
|
|
offset = UNICAST_PACKET_V6_SIZE;
|
|
|
|
SET_ADDRESS(&pinfo->dl_dst, AT_ETHER, 6, dest_addr);
|
|
SET_ADDRESS(&pinfo->dst, AT_ETHER, 6, dest_addr);
|
|
|
|
tap_queue_packet(batadv_tap, pinfo, unicast_packeth);
|
|
|
|
length_remaining = tvb_length_remaining(tvb, offset);
|
|
|
|
if (length_remaining != 0) {
|
|
next_tvb = tvb_new_subset(tvb, offset, length_remaining, -1);
|
|
|
|
if (have_tap_listener(batadv_follow_tap)) {
|
|
tap_queue_packet(batadv_follow_tap, pinfo, next_tvb);
|
|
}
|
|
|
|
call_dissector(eth_handle, next_tvb, pinfo, tree);
|
|
}
|
|
}
|
|
|
|
static void dissect_batadv_vis(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree)
|
|
{
|
|
guint8 version;
|
|
|
|
/* set protocol name */
|
|
col_set_str(pinfo->cinfo, COL_PROTOCOL, "BATADV_VIS");
|
|
|
|
version = tvb_get_guint8(tvb, 1);
|
|
switch (version) {
|
|
case 6:
|
|
case 7:
|
|
case 8:
|
|
case 9:
|
|
dissect_batadv_vis_v6(tvb, pinfo, tree);
|
|
break;
|
|
case 10:
|
|
case 11:
|
|
dissect_batadv_vis_v10(tvb, pinfo, tree);
|
|
break;
|
|
default:
|
|
col_add_fstr(pinfo->cinfo, COL_INFO, "Unsupported Version %d", version);
|
|
call_dissector(data_handle, tvb, pinfo, tree);
|
|
break;
|
|
}
|
|
}
|
|
|
|
static void dissect_batadv_vis_v6(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree)
|
|
{
|
|
struct vis_packet_v6 *vis_packeth;
|
|
const guint8 *vis_orig_addr, *target_orig_addr, *sender_orig_addr;
|
|
proto_tree *batadv_vis_tree = NULL;
|
|
|
|
tvbuff_t *next_tvb;
|
|
guint length_remaining, entry_size;
|
|
int offset = 0, i;
|
|
|
|
vis_packeth = ep_alloc(sizeof(struct vis_packet_v6));
|
|
|
|
vis_packeth->version = tvb_get_guint8(tvb, 1);
|
|
vis_packeth->vis_type = tvb_get_guint8(tvb, 2);
|
|
vis_packeth->seqno = tvb_get_guint8(tvb, 3);
|
|
vis_packeth->entries = tvb_get_guint8(tvb, 4);
|
|
vis_packeth->ttl = tvb_get_guint8(tvb, 5);
|
|
|
|
vis_orig_addr = tvb_get_ptr(tvb, 6, 6);
|
|
SET_ADDRESS(&vis_packeth->vis_orig, AT_ETHER, 6, vis_orig_addr);
|
|
target_orig_addr = tvb_get_ptr(tvb, 12, 6);
|
|
SET_ADDRESS(&vis_packeth->target_orig, AT_ETHER, 6, target_orig_addr);
|
|
sender_orig_addr = tvb_get_ptr(tvb, 18, 6);
|
|
SET_ADDRESS(&vis_packeth->sender_orig, AT_ETHER, 6, sender_orig_addr);
|
|
|
|
/* Set info column */
|
|
if (check_col(pinfo->cinfo, COL_INFO)) {
|
|
col_add_fstr(pinfo->cinfo, COL_INFO, "[%s] Seq=%u",
|
|
val_to_str(vis_packeth->vis_type, vis_packettypenames, "Unknown (0x%02x)"),
|
|
vis_packeth->seqno);
|
|
}
|
|
/* Set tree info */
|
|
if (tree) {
|
|
proto_item *ti;
|
|
|
|
if (PTREE_DATA(tree)->visible) {
|
|
ti = proto_tree_add_protocol_format(tree, proto_batadv_plugin, tvb, 0, VIS_PACKET_V6_SIZE,
|
|
"B.A.T.M.A.N. Vis, Orig: %s (%s)",
|
|
get_ether_name(vis_orig_addr), ether_to_str(vis_orig_addr));
|
|
} else {
|
|
ti = proto_tree_add_item(tree, proto_batadv_plugin, tvb, 0, VIS_PACKET_V6_SIZE, FALSE);
|
|
}
|
|
batadv_vis_tree = proto_item_add_subtree(ti, ett_batadv_vis);
|
|
|
|
/* items */
|
|
proto_tree_add_uint_format(batadv_vis_tree, hf_batadv_packet_type, tvb, offset, 1, BATADV_VIS,
|
|
"Packet Type: %s (%u)", "BATADV_VIS", BATADV_VIS);
|
|
offset += 1;
|
|
|
|
proto_tree_add_item(batadv_vis_tree, hf_batadv_vis_version, tvb, offset, 1, FALSE);
|
|
offset += 1;
|
|
|
|
proto_tree_add_item(batadv_vis_tree, hf_batadv_vis_type, tvb, offset, 1, FALSE);
|
|
offset += 1;
|
|
|
|
proto_tree_add_item(batadv_vis_tree, hf_batadv_vis_seqno, tvb, offset, 1, FALSE);
|
|
offset += 1;
|
|
|
|
proto_tree_add_item(batadv_vis_tree, hf_batadv_vis_entries, tvb, offset, 1, FALSE);
|
|
offset += 1;
|
|
|
|
proto_tree_add_item(batadv_vis_tree, hf_batadv_vis_ttl, tvb, offset, 1, FALSE);
|
|
offset += 1;
|
|
|
|
proto_tree_add_ether(batadv_vis_tree, hf_batadv_vis_vis_orig, tvb, offset, 6, vis_orig_addr);
|
|
offset += 6;
|
|
|
|
proto_tree_add_ether(batadv_vis_tree, hf_batadv_vis_target_orig, tvb, offset, 6, target_orig_addr);
|
|
offset += 6;
|
|
|
|
proto_tree_add_ether(batadv_vis_tree, hf_batadv_vis_sender_orig, tvb, offset, 6, sender_orig_addr);
|
|
offset += 6;
|
|
}
|
|
|
|
/* Calculate offset even when we got no tree */
|
|
offset = VIS_PACKET_V6_SIZE;
|
|
|
|
SET_ADDRESS(&pinfo->dl_src, AT_ETHER, 6, sender_orig_addr);
|
|
SET_ADDRESS(&pinfo->src, AT_ETHER, 6, vis_orig_addr);
|
|
|
|
SET_ADDRESS(&pinfo->dl_dst, AT_ETHER, 6, target_orig_addr);
|
|
SET_ADDRESS(&pinfo->dst, AT_ETHER, 6, target_orig_addr);
|
|
|
|
tap_queue_packet(batadv_tap, pinfo, vis_packeth);
|
|
|
|
switch (vis_packeth->version) {
|
|
case 6:
|
|
case 7:
|
|
entry_size = VIS_ENTRY_V6_SIZE;
|
|
break;
|
|
default:
|
|
case 8:
|
|
case 9:
|
|
entry_size = VIS_ENTRY_V8_SIZE;
|
|
break;
|
|
}
|
|
|
|
for (i = 0; i < vis_packeth->entries; i++) {
|
|
next_tvb = tvb_new_subset(tvb, offset, entry_size, entry_size);
|
|
|
|
if (have_tap_listener(batadv_follow_tap)) {
|
|
tap_queue_packet(batadv_follow_tap, pinfo, next_tvb);
|
|
}
|
|
|
|
if (batadv_vis_tree != NULL) {
|
|
switch (vis_packeth->version) {
|
|
case 6:
|
|
case 7:
|
|
dissect_vis_entry_v6(next_tvb, pinfo, batadv_vis_tree);
|
|
break;
|
|
default:
|
|
case 8:
|
|
case 9:
|
|
dissect_vis_entry_v8(next_tvb, pinfo, batadv_vis_tree);
|
|
break;
|
|
}
|
|
}
|
|
|
|
offset += entry_size;
|
|
}
|
|
|
|
length_remaining = tvb_length_remaining(tvb, offset);
|
|
if (length_remaining != 0) {
|
|
next_tvb = tvb_new_subset(tvb, offset, length_remaining, -1);
|
|
|
|
if (have_tap_listener(batadv_follow_tap)) {
|
|
tap_queue_packet(batadv_follow_tap, pinfo, next_tvb);
|
|
}
|
|
|
|
call_dissector(data_handle, next_tvb, pinfo, tree);
|
|
}
|
|
}
|
|
|
|
static void dissect_batadv_vis_v10(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree)
|
|
{
|
|
struct vis_packet_v10 *vis_packeth;
|
|
const guint8 *vis_orig_addr, *target_orig_addr, *sender_orig_addr;
|
|
proto_tree *batadv_vis_tree = NULL;
|
|
|
|
tvbuff_t *next_tvb;
|
|
guint length_remaining;
|
|
int offset = 0, i;
|
|
|
|
vis_packeth = ep_alloc(sizeof(struct vis_packet_v10));
|
|
|
|
vis_packeth->version = tvb_get_guint8(tvb, 1);
|
|
vis_packeth->vis_type = tvb_get_guint8(tvb, 2);
|
|
vis_packeth->entries = tvb_get_guint8(tvb, 3);
|
|
vis_packeth->seqno = tvb_get_ntohl(tvb, 4);
|
|
vis_packeth->ttl = tvb_get_guint8(tvb, 8);
|
|
|
|
vis_orig_addr = tvb_get_ptr(tvb, 9, 6);
|
|
SET_ADDRESS(&vis_packeth->vis_orig, AT_ETHER, 6, vis_orig_addr);
|
|
target_orig_addr = tvb_get_ptr(tvb, 15, 6);
|
|
SET_ADDRESS(&vis_packeth->target_orig, AT_ETHER, 6, target_orig_addr);
|
|
sender_orig_addr = tvb_get_ptr(tvb, 21, 6);
|
|
SET_ADDRESS(&vis_packeth->sender_orig, AT_ETHER, 6, sender_orig_addr);
|
|
|
|
/* Set info column */
|
|
col_add_fstr(pinfo->cinfo, COL_INFO, "[%s] Seq=%u",
|
|
val_to_str(vis_packeth->vis_type, vis_packettypenames, "Unknown (0x%02x)"),
|
|
vis_packeth->seqno);
|
|
|
|
/* Set tree info */
|
|
if (tree) {
|
|
proto_item *ti;
|
|
|
|
if (PTREE_DATA(tree)->visible) {
|
|
ti = proto_tree_add_protocol_format(tree, proto_batadv_plugin, tvb, 0, VIS_PACKET_V10_SIZE,
|
|
"B.A.T.M.A.N. Vis, Orig: %s (%s)",
|
|
get_ether_name(vis_orig_addr), ether_to_str(vis_orig_addr));
|
|
} else {
|
|
ti = proto_tree_add_item(tree, proto_batadv_plugin, tvb, 0, VIS_PACKET_V10_SIZE, FALSE);
|
|
}
|
|
batadv_vis_tree = proto_item_add_subtree(ti, ett_batadv_vis);
|
|
|
|
/* items */
|
|
proto_tree_add_uint_format(batadv_vis_tree, hf_batadv_packet_type, tvb, offset, 1, BATADV_VIS,
|
|
"Packet Type: %s (%u)", "BATADV_VIS", BATADV_VIS);
|
|
offset += 1;
|
|
|
|
proto_tree_add_item(batadv_vis_tree, hf_batadv_vis_version, tvb, offset, 1, FALSE);
|
|
offset += 1;
|
|
|
|
proto_tree_add_item(batadv_vis_tree, hf_batadv_vis_type, tvb, offset, 1, FALSE);
|
|
offset += 1;
|
|
|
|
proto_tree_add_item(batadv_vis_tree, hf_batadv_vis_entries, tvb, offset, 1, FALSE);
|
|
offset += 1;
|
|
|
|
proto_tree_add_item(batadv_vis_tree, hf_batadv_vis_seqno32, tvb, offset, 4, FALSE);
|
|
offset += 4;
|
|
|
|
proto_tree_add_item(batadv_vis_tree, hf_batadv_vis_ttl, tvb, offset, 1, FALSE);
|
|
offset += 1;
|
|
|
|
proto_tree_add_ether(batadv_vis_tree, hf_batadv_vis_vis_orig, tvb, offset, 6, vis_orig_addr);
|
|
offset += 6;
|
|
|
|
proto_tree_add_ether(batadv_vis_tree, hf_batadv_vis_target_orig, tvb, offset, 6, target_orig_addr);
|
|
offset += 6;
|
|
|
|
proto_tree_add_ether(batadv_vis_tree, hf_batadv_vis_sender_orig, tvb, offset, 6, sender_orig_addr);
|
|
offset += 6;
|
|
}
|
|
|
|
/* Calculate offset even when we got no tree */
|
|
offset = VIS_PACKET_V10_SIZE;
|
|
|
|
SET_ADDRESS(&pinfo->dl_src, AT_ETHER, 6, sender_orig_addr);
|
|
SET_ADDRESS(&pinfo->src, AT_ETHER, 6, vis_orig_addr);
|
|
|
|
SET_ADDRESS(&pinfo->dl_dst, AT_ETHER, 6, target_orig_addr);
|
|
SET_ADDRESS(&pinfo->dst, AT_ETHER, 6, target_orig_addr);
|
|
|
|
tap_queue_packet(batadv_tap, pinfo, vis_packeth);
|
|
|
|
for (i = 0; i < vis_packeth->entries; i++) {
|
|
next_tvb = tvb_new_subset(tvb, offset, VIS_ENTRY_V8_SIZE, VIS_ENTRY_V8_SIZE);
|
|
|
|
if (have_tap_listener(batadv_follow_tap)) {
|
|
tap_queue_packet(batadv_follow_tap, pinfo, next_tvb);
|
|
}
|
|
|
|
dissect_vis_entry_v8(next_tvb, pinfo, batadv_vis_tree);
|
|
offset += VIS_ENTRY_V8_SIZE;
|
|
}
|
|
|
|
length_remaining = tvb_length_remaining(tvb, offset);
|
|
if (length_remaining != 0) {
|
|
next_tvb = tvb_new_subset(tvb, offset, length_remaining, -1);
|
|
|
|
if (have_tap_listener(batadv_follow_tap)) {
|
|
tap_queue_packet(batadv_follow_tap, pinfo, next_tvb);
|
|
}
|
|
|
|
call_dissector(data_handle, next_tvb, pinfo, tree);
|
|
}
|
|
}
|
|
|
|
static void dissect_vis_entry_v6(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree)
|
|
{
|
|
/* Set tree info */
|
|
if (tree) {
|
|
const guint8 *dst;
|
|
proto_item *ti;
|
|
proto_tree *batadv_vis_entry_tree;
|
|
|
|
dst = tvb_get_ptr(tvb, 0, 6);
|
|
|
|
if (PTREE_DATA(tree)->visible) {
|
|
ti = proto_tree_add_protocol_format(tree, proto_batadv_plugin, tvb, 0, VIS_ENTRY_V6_SIZE,
|
|
"VIS Entry: %s (%s)",
|
|
get_ether_name(dst), ether_to_str(dst));
|
|
} else {
|
|
ti = proto_tree_add_item(tree, proto_batadv_plugin, tvb, 0, VIS_ENTRY_V6_SIZE, FALSE);
|
|
}
|
|
batadv_vis_entry_tree = proto_item_add_subtree(ti, ett_batadv_vis_entry);
|
|
|
|
proto_tree_add_ether(batadv_vis_entry_tree, hf_batadv_vis_entry_dst, tvb, 0, 6, dst);
|
|
proto_tree_add_item(batadv_vis_entry_tree, hf_batadv_vis_entry_quality, tvb, 6, 1, FALSE);
|
|
}
|
|
}
|
|
|
|
static void dissect_vis_entry_v8(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree)
|
|
{
|
|
/* Set tree info */
|
|
if (tree) {
|
|
const guint8 *dst, *src;
|
|
proto_item *ti;
|
|
proto_tree *batadv_vis_entry_tree;
|
|
|
|
src = tvb_get_ptr(tvb, 0, 6);
|
|
dst = tvb_get_ptr(tvb, 6, 6);
|
|
|
|
if (PTREE_DATA(tree)->visible) {
|
|
ti = proto_tree_add_protocol_format(tree, proto_batadv_plugin, tvb, 0, VIS_ENTRY_V8_SIZE,
|
|
"VIS Entry: %s (%s)",
|
|
get_ether_name(dst), ether_to_str(dst));
|
|
} else {
|
|
ti = proto_tree_add_item(tree, proto_batadv_plugin, tvb, 0, VIS_ENTRY_V8_SIZE, FALSE);
|
|
}
|
|
batadv_vis_entry_tree = proto_item_add_subtree(ti, ett_batadv_vis_entry);
|
|
|
|
proto_tree_add_ether(batadv_vis_entry_tree, hf_batadv_vis_entry_src, tvb, 0, 6, src);
|
|
proto_tree_add_ether(batadv_vis_entry_tree, hf_batadv_vis_entry_dst, tvb, 6, 6, dst);
|
|
proto_tree_add_item(batadv_vis_entry_tree, hf_batadv_vis_entry_quality, tvb, 12, 1, FALSE);
|
|
}
|
|
}
|
|
|
|
void proto_register_batadv(void)
|
|
{
|
|
module_t *batadv_module;
|
|
|
|
static hf_register_info hf[] = {
|
|
{ &hf_batadv_packet_type,
|
|
{ "Packet Type", "batadv.batman.packet_type",
|
|
FT_UINT8, BASE_DEC, NULL, 0x0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_batadv_batman_version,
|
|
{ "Version", "batadv.batman.version",
|
|
FT_UINT8, BASE_DEC, NULL, 0x0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_batadv_batman_flags,
|
|
{ "Flags", "batadv.batman.flags",
|
|
FT_UINT8, BASE_HEX, NULL, 0x0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_batadv_batman_ttl,
|
|
{ "Time to Live", "batadv.batman.ttl",
|
|
FT_UINT8, BASE_DEC, NULL, 0x0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_batadv_batman_gwflags,
|
|
{ "Gateway Flags", "batadv.batman.gwflags",
|
|
FT_UINT8, BASE_HEX, NULL, 0x0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_batadv_batman_tq,
|
|
{ "Transmission Quality", "batadv.batman.tq",
|
|
FT_UINT8, BASE_DEC, NULL, 0x0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_batadv_batman_seqno,
|
|
{ "Sequence number", "batadv.batman.seq",
|
|
FT_UINT16, BASE_DEC, NULL, 0x0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_batadv_batman_seqno32,
|
|
{ "Sequence number", "batadv.batman.seq",
|
|
FT_UINT32, BASE_DEC, NULL, 0x0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_batadv_batman_orig,
|
|
{ "Originator", "batadv.batman.orig",
|
|
FT_ETHER, BASE_NONE, NULL, 0x0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_batadv_batman_prev_sender,
|
|
{ "Received from", "batadv.batman.prev_sender",
|
|
FT_ETHER, BASE_NONE, NULL, 0x0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_batadv_batman_num_hna,
|
|
{ "Number of HNAs", "batadv.batman.num_hna",
|
|
FT_UINT8, BASE_DEC, NULL, 0x0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_batadv_batman_pad,
|
|
{ "Padding", "batadv.batman.pad",
|
|
FT_UINT8, BASE_DEC, NULL, 0x0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_batadv_batman_flags_directlink,
|
|
{ "DirectLink", "batadv.batman.flags.directlink",
|
|
FT_BOOLEAN, 8, TFS(&tfs_set_notset), 0x40,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_batadv_batman_flags_vis_server,
|
|
{ "VIS_SERVER", "batadv.batman.flags.vis_server",
|
|
FT_BOOLEAN, 8, TFS(&tfs_set_notset), 0x20,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_batadv_batman_flags_primaries_first_hop,
|
|
{ "PRIMARIES_FIRST_HOP", "batadv.batman.flags.primaries_first_hop",
|
|
FT_BOOLEAN, 8, TFS(&tfs_set_notset), 0x10,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_batadv_batman_hna,
|
|
{ "Host Network Announcement", "batadv.batman.hna",
|
|
FT_ETHER, BASE_NONE, NULL, 0x0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_batadv_bcast_version,
|
|
{ "Version", "batadv.bcast.version",
|
|
FT_UINT8, BASE_DEC, NULL, 0x0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_batadv_bcast_pad,
|
|
{ "Padding", "batadv.bcast.pad",
|
|
FT_UINT8, BASE_DEC, NULL, 0x0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_batadv_bcast_orig,
|
|
{ "Originator", "batadv.bcast.orig",
|
|
FT_ETHER, BASE_NONE, NULL, 0x0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_batadv_bcast_seqno,
|
|
{ "Sequence number", "batadv.bcast.seq",
|
|
FT_UINT16, BASE_DEC, NULL, 0x0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_batadv_bcast_seqno32,
|
|
{ "Sequence number", "batadv.bcast.seq",
|
|
FT_UINT32, BASE_DEC, NULL, 0x0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_batadv_bcast_ttl,
|
|
{ "Time to Live", "batadv.bcast.ttl",
|
|
FT_UINT8, BASE_DEC, NULL, 0x0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_batadv_icmp_version,
|
|
{ "Version", "batadv.icmp.version",
|
|
FT_UINT8, BASE_DEC, NULL, 0x0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_batadv_icmp_msg_type,
|
|
{ "Message Type", "batadv.icmp.msg_type",
|
|
FT_UINT8, BASE_DEC, VALS(icmp_packettypenames), 0x0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_batadv_icmp_dst,
|
|
{ "Destination", "batadv.icmp.dst",
|
|
FT_ETHER, BASE_NONE, NULL, 0x0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_batadv_icmp_orig,
|
|
{ "Originator", "batadv.icmp.orig",
|
|
FT_ETHER, BASE_NONE, NULL, 0x0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_batadv_icmp_ttl,
|
|
{ "Time to Live", "batadv.icmp.ttl",
|
|
FT_UINT8, BASE_DEC, NULL, 0x0,
|
|
NULL, HFILL}
|
|
},
|
|
{ &hf_batadv_icmp_uid,
|
|
{ "UID", "batadv.icmp.uid",
|
|
FT_UINT8, BASE_DEC, NULL, 0x0,
|
|
NULL, HFILL}
|
|
},
|
|
{ &hf_batadv_icmp_seqno,
|
|
{ "Sequence number", "batadv.icmp.seq",
|
|
FT_UINT16, BASE_DEC, NULL, 0x0,
|
|
NULL, HFILL}
|
|
},
|
|
{ &hf_batadv_unicast_version,
|
|
{ "Version", "batadv.unicast.version",
|
|
FT_UINT8, BASE_DEC, NULL, 0x0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_batadv_unicast_dst,
|
|
{ "Destination", "batadv.unicast.dst",
|
|
FT_ETHER, BASE_NONE, NULL, 0x0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_batadv_unicast_ttl,
|
|
{ "Time to Live", "batadv.unicast.ttl",
|
|
FT_UINT8, BASE_DEC, NULL, 0x0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_batadv_vis_version,
|
|
{ "Version", "batadv.vis.version",
|
|
FT_UINT8, BASE_DEC, NULL, 0x0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_batadv_vis_type,
|
|
{ "Type", "batadv.vis.type",
|
|
FT_UINT8, BASE_DEC, VALS(vis_packettypenames), 0x0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_batadv_vis_seqno,
|
|
{ "Sequence number", "batadv.vis.seq",
|
|
FT_UINT8, BASE_DEC, NULL, 0x0,
|
|
NULL, HFILL}
|
|
},
|
|
{ &hf_batadv_vis_seqno32,
|
|
{ "Sequence number", "batadv.vis.seq",
|
|
FT_UINT32, BASE_DEC, NULL, 0x0,
|
|
NULL, HFILL}
|
|
},
|
|
{ &hf_batadv_vis_entries,
|
|
{ "Entries", "batadv.vis.entries",
|
|
FT_UINT8, BASE_DEC, NULL, 0x0,
|
|
"Number of entries", HFILL}
|
|
},
|
|
{ &hf_batadv_vis_ttl,
|
|
{ "Time to Live", "batadv.vis.ttl",
|
|
FT_UINT8, BASE_DEC, NULL, 0x0,
|
|
NULL, HFILL}
|
|
},
|
|
{ &hf_batadv_vis_vis_orig,
|
|
{ "Originator", "batadv.vis.vis_orig",
|
|
FT_ETHER, BASE_NONE, NULL, 0x0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_batadv_vis_target_orig,
|
|
{ "Target Originator", "batadv.vis.target_orig",
|
|
FT_ETHER, BASE_NONE, NULL, 0x0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_batadv_vis_sender_orig,
|
|
{ "Forwarding Originator", "batadv.vis.sender_orig",
|
|
FT_ETHER, BASE_NONE, NULL, 0x0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_batadv_vis_entry_src,
|
|
{ "Source", "batadv.vis.src",
|
|
FT_ETHER, BASE_NONE, NULL, 0x0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_batadv_vis_entry_dst,
|
|
{ "Destination", "batadv.vis.dst",
|
|
FT_ETHER, BASE_NONE, NULL, 0x0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_batadv_vis_entry_quality,
|
|
{ "Quality", "batadv.vis.quality",
|
|
FT_UINT8, BASE_DEC, NULL, 0x0,
|
|
NULL, HFILL }
|
|
}
|
|
};
|
|
|
|
/* Setup protocol subtree array */
|
|
static gint *ett[] = {
|
|
&ett_batadv_batman,
|
|
&ett_batadv_batman_flags,
|
|
&ett_batadv_batman_hna,
|
|
&ett_batadv_batman_gwflags,
|
|
&ett_batadv_bcast,
|
|
&ett_batadv_icmp,
|
|
&ett_batadv_icmp_rr,
|
|
&ett_batadv_unicast,
|
|
&ett_batadv_vis,
|
|
&ett_batadv_vis_entry
|
|
};
|
|
|
|
proto_batadv_plugin = proto_register_protocol(
|
|
"B.A.T.M.A.N. Advanced Protocol",
|
|
"BATADV", /* short name */
|
|
"batadv" /* abbrev */
|
|
);
|
|
|
|
batadv_module = prefs_register_protocol(proto_batadv_plugin,
|
|
proto_reg_handoff_batadv);
|
|
|
|
prefs_register_uint_preference(batadv_module, "batmanadv.ethertype",
|
|
"Ethertype",
|
|
"Ethertype used to indicate B.A.T.M.A.N. packet.",
|
|
16, &batadv_ethertype);
|
|
|
|
proto_register_subtree_array(ett, array_length(ett));
|
|
proto_register_field_array(proto_batadv_plugin, hf, array_length(hf));
|
|
}
|
|
|
|
void proto_reg_handoff_batadv(void)
|
|
{
|
|
static gboolean inited = FALSE;
|
|
static unsigned int old_batadv_ethertype;
|
|
|
|
if (!inited) {
|
|
batman_handle = create_dissector_handle(dissect_batman_plugin, proto_batadv_plugin);
|
|
|
|
data_handle = find_dissector("data");
|
|
eth_handle = find_dissector("eth");
|
|
|
|
batadv_tap = register_tap("batman");
|
|
batadv_follow_tap = register_tap("batman_follow");
|
|
|
|
inited = TRUE;
|
|
} else {
|
|
dissector_delete_uint("ethertype", old_batadv_ethertype, batman_handle);
|
|
}
|
|
|
|
old_batadv_ethertype = batadv_ethertype;
|
|
dissector_add_uint("ethertype", batadv_ethertype, batman_handle);
|
|
}
|