bluez5_utils-5.62/tools/parser/avctp.c

// SPDX-License-Identifier: GPL-2.0-or-later
/*
 *
 *  BlueZ - Bluetooth protocol stack for Linux
 *
 *  Copyright (C) 2004-2011  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 "parser.h"
#include "sdp.h"

static char *pt2str(uint8_t hdr)
{
	switch (hdr & 0x0c) {
	case 0x00:
		return "";
	case 0x04:
		return "Start";
	case 0x08:
		return "Cont";
	case 0x0c:
		return "End";
	default:
		return "Unk";
	}
}

void avctp_dump(int level, struct frame *frm, uint16_t psm)
{
	uint8_t hdr;
	uint16_t pid;

	p_indent(level, frm);

	hdr = p_get_u8(frm);
	pid = p_get_u16(frm);

	printf("AVCTP %s: %s %s: pt 0x%02x transaction %d pid 0x%04x\n",
				psm == 23 ? "Control" : "Browsing",
				hdr & 0x02 ? "Response" : "Command",
				pt2str(hdr), hdr & 0x0c, hdr >> 4, pid);

	if (pid == SDP_UUID_AV_REMOTE || pid == SDP_UUID_AV_REMOTE_TARGET)
		avrcp_dump(level + 1, frm, hdr, psm);
	else
		raw_dump(level + 1, frm);
}