2012-08-02 16:54:43 +00:00
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/* packet-ax25.c
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*
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* Routines for Amateur Packet Radio protocol dissection
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2012-09-04 20:42:21 +00:00
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* AX.25 frames
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2012-08-02 16:54:43 +00:00
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* Copyright 2005,2006,2007,2008,2009,2010,2012 R.W. Stearn <richard@rns-stearn.demon.co.uk>
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*
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* $Id$
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*
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* Ethereal - Network traffic analyzer
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* By Gerald Combs <gerald@ethereal.com>
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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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2012-08-02 18:15:44 +00:00
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*
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2012-08-02 16:54:43 +00:00
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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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2012-08-02 18:15:44 +00:00
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*
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2012-08-02 16:54:43 +00:00
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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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/*
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* This dissector is for:
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* AX.25 Amateur Packet-Radio Link-Layer Protocol, Version 2.0, October 1984
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2012-08-02 18:15:44 +00:00
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*
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2012-08-02 16:54:43 +00:00
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* At the time of writing the specification could be found here:
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* http://www.tapr.org/pub_ax25.html
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*
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2012-08-03 02:05:33 +00:00
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* A newer version, Version 2.2, July 1998, can be found at
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* http://www.ax25.net/AX25.2.2-Jul%2098-2.pdf
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*
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2012-08-02 16:54:43 +00:00
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* Inspiration on how to build the dissector drawn from
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* packet-sdlc.c
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* packet-x25.c
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* packet-lapb.c
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* paket-gprs-llc.c
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* xdlc.c
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* with the base file built from README.developers.
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*/
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#ifdef HAVE_CONFIG_H
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# include "config.h"
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#endif
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <glib.h>
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#include <epan/strutil.h>
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#include <epan/packet.h>
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#include <epan/emem.h>
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#include <epan/xdlc.h>
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2012-08-03 01:58:12 +00:00
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#include <epan/ax25_pids.h>
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2012-08-02 16:54:43 +00:00
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#include <epan/ipproto.h>
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#include <packet-ip.h>
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#include "packet-ax25.h"
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2012-08-02 18:38:40 +00:00
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#include "packet-netrom.h"
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2012-08-02 16:54:43 +00:00
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#define STRLEN 80
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#define AX25_ADDR_LEN 7 /* length of an AX.25 address */
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#define AX25_HEADER_SIZE 15 /* length of src_addr + dst_addr + cntl */
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#define AX25_MAX_DIGIS 8
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/* Forward declaration we need below */
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void proto_reg_handoff_ax25(void);
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2012-08-03 01:58:12 +00:00
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/* Dissector table */
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static dissector_table_t ax25_dissector_table;
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static dissector_handle_t data_handle;
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2012-08-02 16:54:43 +00:00
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/* Initialize the protocol and registered fields */
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static int proto_ax25 = -1;
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static int hf_ax25_dst = -1;
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static int hf_ax25_src = -1;
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static int hf_ax25_via[ AX25_MAX_DIGIS ] = { -1,-1,-1,-1,-1,-1,-1,-1 };
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static int hf_ax25_ctl = -1;
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static int hf_ax25_n_r = -1;
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static int hf_ax25_n_s = -1;
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static int hf_ax25_p = -1;
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static int hf_ax25_f = -1;
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static int hf_ax25_ftype_s = -1;
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static int hf_ax25_ftype_i = -1;
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static int hf_ax25_ftype_su = -1;
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static int hf_ax25_u_cmd = -1;
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static int hf_ax25_u_resp = -1;
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static int hf_ax25_pid = -1;
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static const xdlc_cf_items ax25_cf_items = {
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&hf_ax25_n_r,
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&hf_ax25_n_s,
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&hf_ax25_p,
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&hf_ax25_f,
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&hf_ax25_ftype_s,
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&hf_ax25_u_cmd,
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&hf_ax25_u_resp,
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&hf_ax25_ftype_i,
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&hf_ax25_ftype_su
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};
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2012-08-03 01:02:27 +00:00
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static const value_string pid_vals[] = {
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{ AX25_P_ROSE, "Rose" },
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{ AX25_P_RFC1144C, "RFC1144 (compressed)" },
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{ AX25_P_RFC1144, "RFC1144 (uncompressed)" },
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{ AX25_P_SEGMENT, "Segment" },
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{ AX25_P_TEXNET, "Texnet" },
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{ AX25_P_LCP, "Link Quality protocol" },
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{ AX25_P_ATALK, "AppleTalk" },
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{ AX25_P_ATALKARP, "AppleTalk ARP" },
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{ AX25_P_IP, "IP" },
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{ AX25_P_ARP, "ARP" },
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{ AX25_P_FLEXNET, "FlexNet" },
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{ AX25_P_NETROM, "NetRom" },
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{ AX25_P_NO_L3, "No L3" },
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{ AX25_P_L3_ESC, "L3 esc" },
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{ 0, NULL }
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};
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2012-08-02 16:54:43 +00:00
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/* Initialize the subtree pointers */
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static gint ett_ax25 = -1;
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static gint ett_ax25_ctl = -1;
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/* Code to actually dissect the packets */
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static void
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dissect_ax25( tvbuff_t *tvb, packet_info *pinfo, proto_tree *parent_tree )
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{
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proto_item *ti;
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proto_tree *ax25_tree;
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int offset;
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int via_index;
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char *info_buffer;
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2012-08-02 18:15:44 +00:00
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/* char v2cmdresp; */
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2012-08-02 16:54:43 +00:00
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char *ax25_version;
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int is_response;
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const guint8 *src_addr;
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const guint8 *dst_addr;
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const guint8 *via_addr;
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guint8 control;
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guint8 pid = AX25_P_NO_L3;
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guint8 src_ssid;
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guint8 dst_ssid;
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void *saved_private_data;
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tvbuff_t *next_tvb = NULL;
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info_buffer = ep_alloc( STRLEN );
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info_buffer[0]='\0';
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col_set_str( pinfo->cinfo, COL_PROTOCOL, "AX.25" );
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2012-08-02 18:15:44 +00:00
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2012-08-02 16:54:43 +00:00
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col_clear( pinfo->cinfo, COL_INFO );
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/* start at the dst addr */
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offset = 0;
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2012-09-04 20:42:21 +00:00
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/* create display subtree for the protocol */
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ti = proto_tree_add_protocol_format( parent_tree, proto_ax25, tvb, offset, -1, "AX.25");
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ax25_tree = proto_item_add_subtree( ti, ett_ax25 );
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2012-08-02 16:54:43 +00:00
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dst_addr = tvb_get_ptr( tvb, offset, AX25_ADDR_LEN );
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2012-09-04 20:42:21 +00:00
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proto_tree_add_ax25( ax25_tree, hf_ax25_dst, tvb, offset, AX25_ADDR_LEN, dst_addr );
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2012-08-02 16:54:43 +00:00
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SET_ADDRESS( &pinfo->dl_dst, AT_AX25, AX25_ADDR_LEN, dst_addr );
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SET_ADDRESS( &pinfo->dst, AT_AX25, AX25_ADDR_LEN, dst_addr );
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dst_ssid = *(dst_addr + 6);
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2012-09-04 20:42:21 +00:00
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/* step over dst addr point at src addr */
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offset += AX25_ADDR_LEN;
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2012-08-02 16:54:43 +00:00
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src_addr = tvb_get_ptr( tvb, offset, AX25_ADDR_LEN );
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2012-09-04 20:42:21 +00:00
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proto_tree_add_ax25( ax25_tree, hf_ax25_src, tvb, offset, AX25_ADDR_LEN, src_addr );
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2012-08-02 16:54:43 +00:00
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SET_ADDRESS( &pinfo->dl_src, AT_AX25, AX25_ADDR_LEN, src_addr );
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SET_ADDRESS( &pinfo->src, AT_AX25, AX25_ADDR_LEN, src_addr );
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src_ssid = *(src_addr + 6);
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2012-09-04 20:42:21 +00:00
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/* step over src addr point at either 1st via addr or control byte */
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offset += AX25_ADDR_LEN;
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proto_item_append_text( ti, ", Src: %s (%s), Dst: %s (%s)",
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get_ax25_name( src_addr ),
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ax25_to_str( src_addr ),
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get_ax25_name( dst_addr ),
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ax25_to_str( dst_addr ) );
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2012-08-02 16:54:43 +00:00
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/* decode the cmd/resp field */
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2012-08-02 18:15:44 +00:00
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/* v2cmdresp = '.'; */
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2012-08-02 16:54:43 +00:00
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switch ( ( (dst_ssid >> 6) & 0x02) | ( (src_ssid >> 7) & 0x01 ) )
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{
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case 1 : /* V2.0 Response */
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ax25_version = "V2.0+";
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2012-08-02 18:15:44 +00:00
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/* v2cmdresp = 'R'; */
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2012-08-02 16:54:43 +00:00
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is_response = TRUE;
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break;
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case 2 : /* V2.0 Command */
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ax25_version = "V2.0+";
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2012-08-02 18:15:44 +00:00
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/* v2cmdresp = 'C'; */
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2012-08-02 16:54:43 +00:00
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is_response = FALSE;
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break;
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default :
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ax25_version = "V?.?";
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2012-08-02 18:15:44 +00:00
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/* v2cmdresp = '?'; */
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2012-08-02 16:54:43 +00:00
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is_response = FALSE;
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break;
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}
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2012-09-04 20:42:21 +00:00
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proto_item_append_text( ti, ", Ver: %s", ax25_version );
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2012-08-02 16:54:43 +00:00
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2012-08-03 01:02:27 +00:00
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/* handle the vias, if any */
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via_index = 0;
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while ( ( tvb_get_guint8( tvb, offset - 1 ) & 0x01 ) == 0 )
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{
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if ( via_index < AX25_MAX_DIGIS )
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2012-08-02 16:54:43 +00:00
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{
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2012-08-03 01:02:27 +00:00
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via_addr = tvb_get_ptr( tvb, offset, AX25_ADDR_LEN );
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proto_tree_add_ax25( ax25_tree, hf_ax25_via[ via_index ], tvb, offset, AX25_ADDR_LEN, via_addr );
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via_index++;
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2012-08-02 16:54:43 +00:00
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}
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2012-08-03 01:02:27 +00:00
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/* step over a via addr */
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offset += AX25_ADDR_LEN;
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2012-08-02 16:54:43 +00:00
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}
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2012-09-04 20:42:21 +00:00
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/* XXX - next-to-last argument should be TRUE if modulo 128 operation */
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control = dissect_xdlc_control( tvb,
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offset,
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pinfo,
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ax25_tree,
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hf_ax25_ctl,
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ett_ax25_ctl,
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&ax25_cf_items,
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NULL,
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NULL,
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NULL,
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is_response,
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FALSE,
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FALSE );
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/* XXX - second argument should be TRUE if modulo 128 operation */
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offset += XDLC_CONTROL_LEN(control, FALSE); /* step over control field */
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if ( XDLC_IS_INFORMATION( control ) )
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2012-08-02 16:54:43 +00:00
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{
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2012-08-03 01:02:27 +00:00
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pid = tvb_get_guint8( tvb, offset );
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col_append_fstr( pinfo->cinfo, COL_INFO, ", %s", val_to_str(pid, pid_vals, "Unknown (0x%02x)") );
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proto_tree_add_uint( ax25_tree, hf_ax25_pid, tvb, offset, 1, pid );
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/* Call sub-dissectors here */
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2012-08-02 16:54:43 +00:00
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offset += 1; /* step over pid to the 1st byte of the payload */
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2012-09-04 20:42:21 +00:00
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proto_item_set_end(ti, tvb, offset);
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2012-08-02 16:54:43 +00:00
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saved_private_data = pinfo->private_data;
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2012-09-04 20:42:21 +00:00
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next_tvb = tvb_new_subset_remaining(tvb, offset);
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2012-08-02 16:54:43 +00:00
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2012-08-03 01:58:12 +00:00
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if (!dissector_try_uint(ax25_dissector_table, pid, next_tvb, pinfo, parent_tree))
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2012-08-02 16:54:43 +00:00
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{
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2012-08-03 01:58:12 +00:00
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call_dissector(data_handle, next_tvb, pinfo, parent_tree);
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2012-08-02 16:54:43 +00:00
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}
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2012-08-03 01:58:12 +00:00
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2012-08-02 16:54:43 +00:00
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pinfo->private_data = saved_private_data;
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}
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2012-09-04 20:42:21 +00:00
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else
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proto_item_set_end(ti, tvb, offset);
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2012-08-02 16:54:43 +00:00
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}
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void
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proto_register_ax25(void)
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2012-08-02 18:15:44 +00:00
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{
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2012-08-02 16:54:43 +00:00
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static const true_false_string flags_set_truth =
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{
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"Set",
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"Not set"
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};
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/* Setup list of header fields */
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static hf_register_info hf[] = {
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{ &hf_ax25_dst,
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{ "Destination", "ax25.dst",
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2012-08-02 18:15:44 +00:00
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FT_AX25, BASE_NONE, NULL, 0x0,
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2012-08-02 16:54:43 +00:00
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"Destination callsign", HFILL }
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},
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{ &hf_ax25_src,
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{ "Source", "ax25.src",
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2012-08-02 18:15:44 +00:00
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FT_AX25, BASE_NONE, NULL, 0x0,
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2012-08-02 16:54:43 +00:00
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"Source callsign", HFILL }
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},
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{ &(hf_ax25_via[ 0 ]),
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{ "Via 1", "ax25.via1",
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2012-08-02 18:15:44 +00:00
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FT_AX25, BASE_NONE, NULL, 0x0,
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2012-08-02 16:54:43 +00:00
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|
|
"Via callsign 1", HFILL }
|
|
|
|
},
|
|
|
|
{ &(hf_ax25_via[ 1 ]),
|
|
|
|
{ "Via 2", "ax25.via2",
|
2012-08-02 18:15:44 +00:00
|
|
|
FT_AX25, BASE_NONE, NULL, 0x0,
|
2012-08-02 16:54:43 +00:00
|
|
|
"Via callsign 2", HFILL }
|
|
|
|
},
|
|
|
|
{ &(hf_ax25_via[ 2 ]),
|
|
|
|
{ "Via 3", "ax25.via3",
|
2012-08-02 18:15:44 +00:00
|
|
|
FT_AX25, BASE_NONE, NULL, 0x0,
|
2012-08-02 16:54:43 +00:00
|
|
|
"Via callsign 3", HFILL }
|
|
|
|
},
|
|
|
|
{ &(hf_ax25_via[ 3 ]),
|
|
|
|
{ "Via 4", "ax25.via4",
|
2012-08-02 18:15:44 +00:00
|
|
|
FT_AX25, BASE_NONE, NULL, 0x0,
|
2012-08-02 16:54:43 +00:00
|
|
|
"Via callsign 4", HFILL }
|
|
|
|
},
|
|
|
|
{ &(hf_ax25_via[ 4 ]),
|
|
|
|
{ "Via 5", "ax25.via5",
|
2012-08-02 18:15:44 +00:00
|
|
|
FT_AX25, BASE_NONE, NULL, 0x0,
|
2012-08-02 16:54:43 +00:00
|
|
|
"Via callsign 5", HFILL }
|
|
|
|
},
|
|
|
|
{ &(hf_ax25_via[ 5 ]),
|
|
|
|
{ "Via 6", "ax25.via6",
|
2012-08-02 18:15:44 +00:00
|
|
|
FT_AX25, BASE_NONE, NULL, 0x0,
|
2012-08-02 16:54:43 +00:00
|
|
|
"Via callsign 6", HFILL }
|
|
|
|
},
|
|
|
|
{ &(hf_ax25_via[ 6 ]),
|
|
|
|
{ "Via 7", "ax25.via7",
|
2012-08-02 18:15:44 +00:00
|
|
|
FT_AX25, BASE_NONE, NULL, 0x0,
|
2012-08-02 16:54:43 +00:00
|
|
|
"Via callsign 7", HFILL }
|
|
|
|
},
|
|
|
|
{ &(hf_ax25_via[ 7 ]),
|
|
|
|
{ "Via 8", "ax25.via8",
|
2012-08-02 18:15:44 +00:00
|
|
|
FT_AX25, BASE_NONE, NULL, 0x0,
|
2012-08-02 16:54:43 +00:00
|
|
|
"Via callsign 8", HFILL }
|
|
|
|
},
|
|
|
|
{ &hf_ax25_ctl,
|
|
|
|
{ "Control", "ax25.ctl",
|
2012-08-02 18:15:44 +00:00
|
|
|
FT_UINT8, BASE_HEX, NULL, 0x0,
|
2012-08-02 16:54:43 +00:00
|
|
|
"Control field", HFILL }
|
|
|
|
},
|
|
|
|
{ &hf_ax25_n_r,
|
|
|
|
{ "n(r)", "ax25.ctl.n_r",
|
2012-08-02 18:15:44 +00:00
|
|
|
FT_UINT8, BASE_DEC, NULL, XDLC_N_R_MASK,
|
2012-08-02 16:54:43 +00:00
|
|
|
"", HFILL }
|
|
|
|
},
|
|
|
|
{ &hf_ax25_n_s,
|
|
|
|
{ "n(s)", "ax25.ctl.n_s",
|
2012-08-02 18:15:44 +00:00
|
|
|
FT_UINT8, BASE_DEC, NULL, XDLC_N_S_MASK,
|
2012-08-02 16:54:43 +00:00
|
|
|
"", HFILL }
|
|
|
|
},
|
|
|
|
{ &hf_ax25_p,
|
|
|
|
{ "Poll", "ax25.ctl.p",
|
2012-08-02 18:15:44 +00:00
|
|
|
FT_BOOLEAN, 8, TFS(&flags_set_truth), XDLC_P_F,
|
2012-08-02 16:54:43 +00:00
|
|
|
"", HFILL }
|
|
|
|
},
|
|
|
|
{ &hf_ax25_f,
|
|
|
|
{ "Final", "ax25.ctl.f",
|
2012-08-02 18:15:44 +00:00
|
|
|
FT_BOOLEAN, 8, TFS(&flags_set_truth), XDLC_P_F,
|
2012-08-02 16:54:43 +00:00
|
|
|
"", HFILL }
|
|
|
|
},
|
|
|
|
{ &hf_ax25_ftype_s,
|
|
|
|
{ "Frame type", "ax25.ctl.ftype_s",
|
2012-08-02 18:15:44 +00:00
|
|
|
FT_UINT8, BASE_HEX, VALS(stype_vals), XDLC_S_FTYPE_MASK,
|
2012-08-02 16:54:43 +00:00
|
|
|
"", HFILL }
|
|
|
|
},
|
|
|
|
{ &hf_ax25_ftype_i,
|
|
|
|
{ "Frame type", "ax25.ctl.ftype_i",
|
2012-08-02 18:15:44 +00:00
|
|
|
FT_UINT8, BASE_HEX, VALS(ftype_vals), XDLC_I_MASK,
|
2012-08-02 16:54:43 +00:00
|
|
|
"", HFILL }
|
|
|
|
},
|
|
|
|
{ &hf_ax25_ftype_su,
|
|
|
|
{ "Frame type", "ax25.ctl.ftype_su",
|
2012-08-02 18:15:44 +00:00
|
|
|
FT_UINT8, BASE_HEX, VALS(ftype_vals), XDLC_S_U_MASK,
|
2012-08-02 16:54:43 +00:00
|
|
|
"", HFILL }
|
|
|
|
},
|
|
|
|
{ &hf_ax25_u_cmd,
|
|
|
|
{ "Frame type", "ax25.ctl.u_cmd",
|
2012-08-02 18:15:44 +00:00
|
|
|
FT_UINT8, BASE_HEX, VALS(modifier_vals_cmd), XDLC_U_MODIFIER_MASK,
|
2012-08-02 16:54:43 +00:00
|
|
|
"", HFILL }
|
|
|
|
},
|
|
|
|
{ &hf_ax25_u_resp,
|
|
|
|
{ "Frame type", "ax25.ctl.u_resp",
|
2012-08-02 18:15:44 +00:00
|
|
|
FT_UINT8, BASE_HEX, VALS(modifier_vals_resp), XDLC_U_MODIFIER_MASK,
|
2012-08-02 16:54:43 +00:00
|
|
|
"", HFILL }
|
|
|
|
},
|
|
|
|
{ &hf_ax25_pid,
|
2012-09-04 20:42:21 +00:00
|
|
|
{ "Protocol ID", "ax25.pid",
|
2012-08-03 01:02:27 +00:00
|
|
|
FT_UINT8, BASE_HEX, VALS(pid_vals), 0x0,
|
2012-09-04 20:42:21 +00:00
|
|
|
"Protocol identifier", HFILL }
|
2012-08-02 16:54:43 +00:00
|
|
|
},
|
|
|
|
};
|
|
|
|
|
|
|
|
/* Setup protocol subtree array */
|
|
|
|
static gint *ett[] = {
|
|
|
|
&ett_ax25,
|
|
|
|
&ett_ax25_ctl,
|
|
|
|
};
|
|
|
|
|
|
|
|
/* Register the protocol name and description */
|
2012-08-03 01:58:12 +00:00
|
|
|
proto_ax25 = proto_register_protocol("Amateur Radio AX.25", "AX.25", "ax25");
|
2012-08-02 16:54:43 +00:00
|
|
|
|
|
|
|
/* Register the dissector */
|
|
|
|
register_dissector( "ax25", dissect_ax25, proto_ax25 );
|
|
|
|
|
|
|
|
/* Required function calls to register the header fields and subtrees used */
|
|
|
|
proto_register_field_array( proto_ax25, hf, array_length(hf ) );
|
|
|
|
proto_register_subtree_array(ett, array_length(ett ) );
|
2012-08-03 01:58:12 +00:00
|
|
|
|
|
|
|
/* Register dissector table for protocol IDs */
|
|
|
|
ax25_dissector_table = register_dissector_table("ax25.pid", "AX.25 protocol ID", FT_UINT8, BASE_HEX);
|
2012-08-02 16:54:43 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
void
|
|
|
|
proto_reg_handoff_ax25(void)
|
|
|
|
{
|
|
|
|
static gboolean inited = FALSE;
|
2012-08-02 18:15:44 +00:00
|
|
|
|
2012-08-02 16:54:43 +00:00
|
|
|
if( !inited ) {
|
|
|
|
|
2012-08-03 01:58:12 +00:00
|
|
|
dissector_handle_t ax25_handle;
|
|
|
|
|
|
|
|
ax25_handle = create_dissector_handle( dissect_ax25, proto_ax25 );
|
|
|
|
dissector_add_uint("wtap_encap", WTAP_ENCAP_AX25, ax25_handle);
|
|
|
|
dissector_add_uint("ip.proto", IP_PROTO_AX25, ax25_handle);
|
|
|
|
|
|
|
|
data_handle = find_dissector( "data" );
|
|
|
|
|
|
|
|
inited = TRUE;
|
2012-08-02 16:54:43 +00:00
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
void
|
|
|
|
capture_ax25( const guchar *pd, int offset, int len, packet_counts *ld)
|
|
|
|
{
|
|
|
|
guint8 control;
|
|
|
|
guint8 pid;
|
|
|
|
int l_offset;
|
|
|
|
|
2012-08-02 19:42:59 +00:00
|
|
|
if ( ! BYTES_ARE_IN_FRAME( offset, len, AX25_HEADER_SIZE ) )
|
|
|
|
{
|
|
|
|
ld->other++;
|
|
|
|
return;
|
|
|
|
}
|
2012-08-02 16:54:43 +00:00
|
|
|
|
2012-08-02 19:42:59 +00:00
|
|
|
l_offset = offset;
|
|
|
|
l_offset += AX25_ADDR_LEN; /* step over dst addr point at src addr */
|
|
|
|
l_offset += AX25_ADDR_LEN; /* step over src addr point at either 1st via addr or control byte */
|
|
|
|
while ( ( pd[ l_offset - 1 ] & 0x01 ) == 0 )
|
|
|
|
l_offset += AX25_ADDR_LEN; /* step over a via addr */
|
2012-08-02 16:54:43 +00:00
|
|
|
|
2012-08-02 19:42:59 +00:00
|
|
|
control = pd[ l_offset ];
|
2012-08-02 16:54:43 +00:00
|
|
|
|
2012-08-02 19:42:59 +00:00
|
|
|
/* decode the pid field (if appropriate) */
|
2012-09-04 20:42:21 +00:00
|
|
|
if ( XDLC_IS_INFORMATION( control ) )
|
2012-08-02 16:54:43 +00:00
|
|
|
{
|
2012-08-02 19:42:59 +00:00
|
|
|
l_offset += 1; /* step over control byte point at pid */
|
|
|
|
pid = pd[ l_offset ];
|
|
|
|
|
|
|
|
l_offset += 1; /* step over the pid and point to the first byte of the payload */
|
|
|
|
switch ( pid & 0x0ff )
|
|
|
|
{
|
|
|
|
case AX25_P_NETROM : capture_netrom( pd, l_offset, len, ld ); break;
|
|
|
|
case AX25_P_IP : capture_ip( pd, l_offset, len, ld ); break;
|
|
|
|
case AX25_P_ARP : ld->arp++; break;
|
|
|
|
default : ld->other++; break;
|
|
|
|
}
|
2012-08-02 16:54:43 +00:00
|
|
|
}
|
|
|
|
}
|