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// SPDX-License-Identifier: LGPL-2.1-or-later
/*
*
* BlueZ - Bluetooth protocol stack for Linux
*
* Copyright (C) 2011-2014 Intel Corporation
* Copyright (C) 2002-2010 Marcel Holtmann <marcel@holtmann.org>
*
*
*/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#define _GNU_SOURCE
#include <stdio.h>
#include <unistd.h>
#include <string.h>
#include <time.h>
#include <sys/time.h>
#include <sys/socket.h>
#include <sys/uio.h>
#include <netdb.h>
#include <arpa/inet.h>
#include "src/shared/btsnoop.h"
#include "ellisys.h"
static int ellisys_fd = -1;
static uint16_t ellisys_index = 0xffff;
void ellisys_enable(const char *server, uint16_t port)
{
struct sockaddr_in addr;
int fd;
if (ellisys_fd >= 0) {
fprintf(stderr, "Ellisys injection already enabled\n");
return;
}
fd = socket(PF_INET, SOCK_DGRAM | SOCK_CLOEXEC, 0);
if (fd < 0) {
perror("Failed to open UDP injection socket");
return;
}
memset(&addr, 0, sizeof(addr));
addr.sin_family = AF_INET;
addr.sin_addr.s_addr = inet_addr(server);
addr.sin_port = htons(port);
if (connect(fd, (struct sockaddr *) &addr, sizeof(addr)) < 0) {
perror("Failed to connect UDP injection socket");
close(fd);
return;
}
ellisys_fd = fd;
}
void ellisys_inject_hci(struct timeval *tv, uint16_t index, uint16_t opcode,
const void *data, uint16_t size)
{
uint8_t msg[] = {
/* HCI Injection Service, Version 1 */
0x02, 0x00, 0x01,
/* DateTimeNs Object */
0x02, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
/* Bitrate Object, 12000000 bps */
0x80, 0x00, 0x1b, 0x37, 0x4b,
/* HCI Packet Type Object */
0x81, 0x00,
/* HCI Packet Data Object */
0x82
};
long nsec;
time_t t;
struct tm tm;
struct iovec iov[2];
int iovcnt;
if (!tv)
return;
if (ellisys_fd < 0)
return;
if (ellisys_index == 0xffff)
ellisys_index = index;
if (index != ellisys_index)
return;
t = tv->tv_sec;
localtime_r(&t, &tm);
nsec = ((tm.tm_sec + (tm.tm_min * 60) +
(tm.tm_hour * 3600)) * 1000000l + tv->tv_usec) * 1000l;
msg[4] = (1900 + tm.tm_year) & 0xff;
msg[5] = (1900 + tm.tm_year) >> 8;
msg[6] = (tm.tm_mon + 1) & 0xff;
msg[7] = tm.tm_mday & 0xff;
msg[8] = (nsec & 0x0000000000ffl);
msg[9] = (nsec & 0x00000000ff00l) >> 8;
msg[10] = (nsec & 0x000000ff0000l) >> 16;
msg[11] = (nsec & 0x0000ff000000l) >> 24;
msg[12] = (nsec & 0x00ff00000000l) >> 32;
msg[13] = (nsec & 0xff0000000000l) >> 40;
switch (opcode) {
case BTSNOOP_OPCODE_COMMAND_PKT:
msg[20] = 0x01;
break;
case BTSNOOP_OPCODE_EVENT_PKT:
msg[20] = 0x84;
break;
case BTSNOOP_OPCODE_ACL_TX_PKT:
msg[20] = 0x02;
break;
case BTSNOOP_OPCODE_ACL_RX_PKT:
msg[20] = 0x82;
break;
case BTSNOOP_OPCODE_SCO_TX_PKT:
msg[20] = 0x03;
break;
case BTSNOOP_OPCODE_SCO_RX_PKT:
msg[20] = 0x83;
break;
case BTSNOOP_OPCODE_ISO_TX_PKT:
msg[20] = 0x05;
break;
case BTSNOOP_OPCODE_ISO_RX_PKT:
msg[20] = 0x85;
break;
default:
return;
}
iov[0].iov_base = msg;
iov[0].iov_len = sizeof(msg);
if (size > 0) {
iov[1].iov_base = (void *) data;
iov[1].iov_len = size;
iovcnt = 2;
} else
iovcnt = 1;
if (writev(ellisys_fd, iov, iovcnt) < 0)
perror("Failed to send Ellisys injection packet");
}
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