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https://git.kernel.org/pub/scm/bluetooth/bluez.git
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6899322b68
Ellisys Bluetooth Analyzer Injection API Services.pdf HCI Packet Type Object Value HCI Packet Type 0x05 HCI ISO Data (host to controller) 0x85 HCI ISO Data (controller to host)
157 lines
3.2 KiB
C
157 lines
3.2 KiB
C
// SPDX-License-Identifier: LGPL-2.1-or-later
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/*
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*
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* BlueZ - Bluetooth protocol stack for Linux
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*
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* Copyright (C) 2011-2014 Intel Corporation
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* Copyright (C) 2002-2010 Marcel Holtmann <marcel@holtmann.org>
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*
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*
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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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#define _GNU_SOURCE
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#include <stdio.h>
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#include <unistd.h>
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#include <string.h>
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#include <time.h>
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#include <sys/time.h>
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#include <sys/socket.h>
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#include <sys/uio.h>
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#include <netdb.h>
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#include <arpa/inet.h>
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#include "src/shared/btsnoop.h"
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#include "ellisys.h"
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static int ellisys_fd = -1;
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static uint16_t ellisys_index = 0xffff;
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void ellisys_enable(const char *server, uint16_t port)
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{
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struct sockaddr_in addr;
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int fd;
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if (ellisys_fd >= 0) {
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fprintf(stderr, "Ellisys injection already enabled\n");
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return;
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}
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fd = socket(PF_INET, SOCK_DGRAM | SOCK_CLOEXEC, 0);
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if (fd < 0) {
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perror("Failed to open UDP injection socket");
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return;
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}
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memset(&addr, 0, sizeof(addr));
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addr.sin_family = AF_INET;
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addr.sin_addr.s_addr = inet_addr(server);
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addr.sin_port = htons(port);
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if (connect(fd, (struct sockaddr *) &addr, sizeof(addr)) < 0) {
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perror("Failed to connect UDP injection socket");
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close(fd);
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return;
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}
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ellisys_fd = fd;
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}
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void ellisys_inject_hci(struct timeval *tv, uint16_t index, uint16_t opcode,
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const void *data, uint16_t size)
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{
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uint8_t msg[] = {
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/* HCI Injection Service, Version 1 */
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0x02, 0x00, 0x01,
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/* DateTimeNs Object */
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0x02, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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/* Bitrate Object, 12000000 bps */
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0x80, 0x00, 0x1b, 0x37, 0x4b,
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/* HCI Packet Type Object */
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0x81, 0x00,
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/* HCI Packet Data Object */
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0x82
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};
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long nsec;
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time_t t;
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struct tm tm;
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struct iovec iov[2];
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int iovcnt;
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if (!tv)
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return;
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if (ellisys_fd < 0)
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return;
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if (ellisys_index == 0xffff)
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ellisys_index = index;
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if (index != ellisys_index)
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return;
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t = tv->tv_sec;
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localtime_r(&t, &tm);
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nsec = ((tm.tm_sec + (tm.tm_min * 60) +
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(tm.tm_hour * 3600)) * 1000000l + tv->tv_usec) * 1000l;
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msg[4] = (1900 + tm.tm_year) & 0xff;
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msg[5] = (1900 + tm.tm_year) >> 8;
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msg[6] = (tm.tm_mon + 1) & 0xff;
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msg[7] = tm.tm_mday & 0xff;
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msg[8] = (nsec & 0x0000000000ffl);
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msg[9] = (nsec & 0x00000000ff00l) >> 8;
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msg[10] = (nsec & 0x000000ff0000l) >> 16;
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msg[11] = (nsec & 0x0000ff000000l) >> 24;
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msg[12] = (nsec & 0x00ff00000000l) >> 32;
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msg[13] = (nsec & 0xff0000000000l) >> 40;
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switch (opcode) {
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case BTSNOOP_OPCODE_COMMAND_PKT:
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msg[20] = 0x01;
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break;
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case BTSNOOP_OPCODE_EVENT_PKT:
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msg[20] = 0x84;
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break;
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case BTSNOOP_OPCODE_ACL_TX_PKT:
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msg[20] = 0x02;
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break;
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case BTSNOOP_OPCODE_ACL_RX_PKT:
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msg[20] = 0x82;
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break;
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case BTSNOOP_OPCODE_SCO_TX_PKT:
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msg[20] = 0x03;
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break;
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case BTSNOOP_OPCODE_SCO_RX_PKT:
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msg[20] = 0x83;
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break;
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case BTSNOOP_OPCODE_ISO_TX_PKT:
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msg[20] = 0x05;
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break;
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case BTSNOOP_OPCODE_ISO_RX_PKT:
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msg[20] = 0x85;
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break;
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default:
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return;
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}
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iov[0].iov_base = msg;
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iov[0].iov_len = sizeof(msg);
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if (size > 0) {
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iov[1].iov_base = (void *) data;
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iov[1].iov_len = size;
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iovcnt = 2;
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} else
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iovcnt = 1;
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if (writev(ellisys_fd, iov, iovcnt) < 0)
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perror("Failed to send Ellisys injection packet");
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}
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