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// SPDX-License-Identifier: GPL-2.0-or-later
/*
*
* BlueZ - Bluetooth protocol stack for Linux
*
* Copyright (C) 2002-2003 Takashi Sasai <sasai@sm.sony.co.jp>
* Copyright (C) 2003-2011 Marcel Holtmann <marcel@holtmann.org>
*
*
*/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#define _GNU_SOURCE
#include <stdio.h>
#include <errno.h>
#include <unistd.h>
#include <stdlib.h>
#include <string.h>
#include <net/ethernet.h>
#include "parser.h"
/* BNEP Type */
#define BNEP_GENERAL_ETHERNET 0x00
#define BNEP_CONTROL 0x01
#define BNEP_COMPRESSED_ETHERNET 0x02
#define BNEP_COMPRESSED_ETHERNET_SOURCE_ONLY 0x03
#define BNEP_COMPRESSED_ETHERNET_DEST_ONLY 0x04
/* BNEP Control Packet Type */
#define BNEP_CONTROL_COMMAND_NOT_UNDERSTOOD 0x00
#define BNEP_SETUP_CONNECTION_REQUEST_MSG 0x01
#define BNEP_SETUP_CONNECTION_RESPONSE_MSG 0x02
#define BNEP_FILTER_NET_TYPE_SET_MSG 0x03
#define BNEP_FILTER_NET_TYPE_RESPONSE_MSG 0x04
#define BNEP_FILTER_MULT_ADDR_SET_MSG 0x05
#define BNEP_FILTER_MULT_ADDR_RESPONSE_MSG 0x06
/* BNEP Extension Type */
#define BNEP_EXTENSION_CONTROL 0x00
#ifndef ETHERTYPE_IPV6
#define ETHERTYPE_IPV6 ETH_P_IPV6
#endif
static char *get_macaddr(struct frame *frm)
{
static char str[20];
unsigned char *buf = frm->ptr;
sprintf(str, "%02x:%02x:%02x:%02x:%02x:%02x",
buf[0], buf[1], buf[2], buf[3], buf[4], buf[5]);
frm->ptr += 6;
frm->len -= 6;
return str;
}
static void bnep_control(int level, struct frame *frm, int header_length)
{
uint8_t uuid_size;
int i, length;
char *s;
uint32_t uuid = 0;
uint8_t type = p_get_u8(frm);
p_indent(++level, frm);
switch (type) {
case BNEP_CONTROL_COMMAND_NOT_UNDERSTOOD:
printf("Not Understood(0x%02x) type 0x%02x\n", type, p_get_u8(frm));
break;
case BNEP_SETUP_CONNECTION_REQUEST_MSG:
uuid_size = p_get_u8(frm);
printf("Setup Req(0x%02x) size 0x%02x ", type, uuid_size);
switch (uuid_size) {
case 2:
uuid = p_get_u16(frm);
printf("dst 0x%x", uuid);
if ((s = get_uuid_name(uuid)) != 0)
printf("(%s)", s);
uuid = p_get_u16(frm);
printf(" src 0x%x", uuid);
if ((s = get_uuid_name(uuid)) != 0)
printf("(%s)", s);
printf("\n");
break;
case 4:
uuid = p_get_u32(frm);
printf("dst 0x%x", uuid);
if ((s = get_uuid_name(uuid)) != 0)
printf("(%s)", s);
uuid = p_get_u32(frm);
printf(" src 0x%x", uuid);
if ((s = get_uuid_name(uuid)) != 0)
printf("(%s)", s);
printf("\n");
break;
case 16:
uuid = p_get_u32(frm);
printf("dst 0x%x", uuid);
if ((s = get_uuid_name(uuid)) != 0)
printf("(%s)", s);
frm->ptr += 12;
frm->len -= 12;
uuid = p_get_u32(frm);
printf(" src 0x%x", uuid);
if ((s = get_uuid_name(uuid)) != 0)
printf("(%s)", s);
printf("\n");
frm->ptr += 12;
frm->len -= 12;
break;
default:
frm->ptr += (uuid_size * 2);
frm->len -= (uuid_size * 2);
break;
}
break;
case BNEP_SETUP_CONNECTION_RESPONSE_MSG:
printf("Setup Rsp(0x%02x) res 0x%04x\n",
type, p_get_u16(frm));
break;
case BNEP_FILTER_NET_TYPE_SET_MSG:
length = p_get_u16(frm);
printf("Filter NetType Set(0x%02x) len 0x%04x\n",
type, length);
for (i = 0; i < length / 4; i++) {
p_indent(level + 1, frm);
printf("0x%04x - ", p_get_u16(frm));
printf("0x%04x\n", p_get_u16(frm));
}
break;
case BNEP_FILTER_NET_TYPE_RESPONSE_MSG:
printf("Filter NetType Rsp(0x%02x) res 0x%04x\n",
type, p_get_u16(frm));
break;
case BNEP_FILTER_MULT_ADDR_SET_MSG:
length = p_get_u16(frm);
printf("Filter MultAddr Set(0x%02x) len 0x%04x\n",
type, length);
for (i = 0; i < length / 12; i++) {
p_indent(level + 1, frm);
printf("%s - ", get_macaddr(frm));
printf("%s\n", get_macaddr(frm));
}
break;
case BNEP_FILTER_MULT_ADDR_RESPONSE_MSG:
printf("Filter MultAddr Rsp(0x%02x) res 0x%04x\n",
type, p_get_u16(frm));
break;
default:
printf("Unknown control type(0x%02x)\n", type);
raw_ndump(level + 1, frm, header_length - 1);
frm->ptr += header_length - 1;
frm->len -= header_length - 1;
return;
}
}
static void bnep_eval_extension(int level, struct frame *frm)
{
uint8_t type = p_get_u8(frm);
uint8_t length = p_get_u8(frm);
int extension = type & 0x80;
p_indent(level, frm);
switch (type & 0x7f) {
case BNEP_EXTENSION_CONTROL:
printf("Ext Control(0x%02x|%s) len 0x%02x\n",
type & 0x7f, extension ? "1" : "0", length);
bnep_control(level, frm, length);
break;
default:
printf("Ext Unknown(0x%02x|%s) len 0x%02x\n",
type & 0x7f, extension ? "1" : "0", length);
raw_ndump(level + 1, frm, length);
frm->ptr += length;
frm->len -= length;
}
if (extension)
bnep_eval_extension(level, frm);
}
void bnep_dump(int level, struct frame *frm)
{
uint8_t type = p_get_u8(frm);
uint16_t proto = 0x0000;
int extension = type & 0x80;
p_indent(level, frm);
switch (type & 0x7f) {
case BNEP_CONTROL:
printf("BNEP: Control(0x%02x|%s)\n",
type & 0x7f, extension ? "1" : "0");
bnep_control(level, frm, -1);
break;
case BNEP_COMPRESSED_ETHERNET:
printf("BNEP: Compressed(0x%02x|%s)\n",
type & 0x7f, extension ? "1" : "0");
p_indent(++level, frm);
proto = p_get_u16(frm);
printf("[proto 0x%04x]\n", proto);
break;
case BNEP_GENERAL_ETHERNET:
printf("BNEP: General ethernet(0x%02x|%s)\n",
type & 0x7f, extension ? "1" : "0");
p_indent(++level, frm);
printf("dst %s ", get_macaddr(frm));
printf("src %s ", get_macaddr(frm));
proto = p_get_u16(frm);
printf("[proto 0x%04x]\n", proto);
break;
case BNEP_COMPRESSED_ETHERNET_DEST_ONLY:
printf("BNEP: Compressed DestOnly(0x%02x|%s)\n",
type & 0x7f, extension ? "1" : "0");
p_indent(++level, frm);
printf("dst %s ", get_macaddr(frm));
proto = p_get_u16(frm);
printf("[proto 0x%04x]\n", proto);
break;
case BNEP_COMPRESSED_ETHERNET_SOURCE_ONLY:
printf("BNEP: Compressed SrcOnly(0x%02x|%s)\n",
type & 0x7f, extension ? "1" : "0");
p_indent(++level, frm);
printf("src %s ", get_macaddr(frm));
proto = p_get_u16(frm);
printf("[proto 0x%04x]\n", proto);
break;
default:
printf("(Unknown packet type)\n");
return;
}
/* Extension info */
if (extension)
bnep_eval_extension(++level, frm);
/* Control packet => No payload info */
if ((type & 0x7f) == BNEP_CONTROL)
return;
/* 802.1p header */
if (proto == 0x8100) {
p_indent(level, frm);
printf("802.1p Header: 0x%04x ", p_get_u16(frm));
proto = p_get_u16(frm);
printf("[proto 0x%04x]\n", proto);
}
if (!(parser.flags & DUMP_VERBOSE)) {
raw_dump(level, frm);
return;
}
switch (proto) {
case ETHERTYPE_ARP:
p_indent(++level, frm);
printf("ARP: ");
arp_dump(level, frm);
break;
case ETHERTYPE_REVARP:
p_indent(++level, frm);
printf("RARP: ");
arp_dump(level, frm);
break;
case ETHERTYPE_IP:
p_indent(++level, frm);
printf("IP: ");
ip_dump(level, frm);
break;
case ETHERTYPE_IPV6:
p_indent(++level, frm);
printf("IPV6: ");
ip_dump(level, frm);
break;
default:
raw_dump(level, frm);
break;
}
}
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