You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
134 lines
5.0 KiB
134 lines
5.0 KiB
#!/usr/bin/env python3
|
|
#
|
|
# This file is part of the MicroPython project, http://micropython.org/
|
|
#
|
|
# The MIT License (MIT)
|
|
#
|
|
# Copyright (c) 2023 Jim Mussared
|
|
#
|
|
# Permission is hereby granted, free of charge, to any person obtaining a copy
|
|
# of this software and associated documentation files (the "Software"), to deal
|
|
# in the Software without restriction, including without limitation the rights
|
|
# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
|
# copies of the Software, and to permit persons to whom the Software is
|
|
# furnished to do so, subject to the following conditions:
|
|
#
|
|
# The above copyright notice and this permission notice shall be included in
|
|
# all copies or substantial portions of the Software.
|
|
#
|
|
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
|
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
|
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
|
# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
|
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
|
# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
|
|
# THE SOFTWARE.
|
|
|
|
# Simple script to take the output printed when HCI_TRACE is enabled in
|
|
# unix/mpbthciport.c, extmod/btstack/btstack_hci_uart.c,
|
|
# extmod/nimble/hal/hal_uart.c and turn it into a .pcap file suitable for use
|
|
# with Wireshark.
|
|
|
|
import re
|
|
import sys
|
|
import struct
|
|
|
|
# pcap file header:
|
|
# typedef struct pcap_hdr_s {
|
|
# guint32 magic_number; /* magic number */
|
|
# guint16 version_major; /* major version number */
|
|
# guint16 version_minor; /* minor version number */
|
|
# gint32 thiszone; /* GMT to local correction */
|
|
# guint32 sigfigs; /* accuracy of timestamps */
|
|
# guint32 snaplen; /* max length of captured packets, in octets */
|
|
# guint32 network; /* data link type */
|
|
# } pcap_hdr_t;
|
|
|
|
# pcap record header
|
|
# typedef struct pcaprec_hdr_s {
|
|
# guint32 ts_sec; /* timestamp seconds */
|
|
# guint32 ts_usec; /* timestamp microseconds */
|
|
# guint32 incl_len; /* number of octets of packet saved in file */
|
|
# guint32 orig_len; /* actual length of packet */
|
|
# } pcaprec_hdr_t;
|
|
|
|
_LINKTYPE_BLUETOOTH_HCI_H4_WITH_PHDR = 201 # "!I" direction, followed by data
|
|
sys.stdout.buffer.write(
|
|
struct.pack("!IHHiIII", 0xA1B2C3D4, 2, 4, 0, 0, 65535, _LINKTYPE_BLUETOOTH_HCI_H4_WITH_PHDR)
|
|
)
|
|
|
|
_DIR_CONTROLLER_TO_HOST = 1
|
|
_DIR_HOST_TO_CONTROLLER = 0
|
|
|
|
reassemble_timestamp = 0
|
|
reassemble_packet = bytearray()
|
|
|
|
with open(sys.argv[1], "r") as f:
|
|
for line in f:
|
|
line = line.strip()
|
|
m = re.match("([<>]) \\[ *([0-9]+)\\] ([A-Fa-f0-9:]+)", line)
|
|
if not m:
|
|
continue
|
|
|
|
timestamp = int(m.group(2))
|
|
data = bytes.fromhex(m.group(3).replace(":", ""))
|
|
|
|
if m.group(1) == "<":
|
|
# Host to controller.
|
|
# These are always complete.
|
|
sys.stdout.buffer.write(
|
|
struct.pack(
|
|
"!IIIII",
|
|
timestamp // 1000,
|
|
timestamp % 1000 * 1000,
|
|
len(data) + 4,
|
|
len(data) + 4,
|
|
_DIR_HOST_TO_CONTROLLER,
|
|
)
|
|
)
|
|
sys.stdout.buffer.write(data)
|
|
if m.group(1) == ">":
|
|
# Controller to host.
|
|
# Several of the sources print byte-at-a-time so need to reconstruct packets.
|
|
|
|
if not reassemble_packet:
|
|
# Use the timestamp of the first fragment.
|
|
reassemble_timestamp = timestamp
|
|
|
|
reassemble_packet.extend(data)
|
|
|
|
if len(reassemble_packet) > 4:
|
|
plen = 0
|
|
if reassemble_packet[0] == 1:
|
|
# command
|
|
plen = 3 + reassemble_packet[3]
|
|
elif reassemble_packet[0] == 2:
|
|
# acl
|
|
plen = 5 + reassemble_packet[3] + (reassemble_packet[4] << 8)
|
|
elif reassemble_packet[0] == 4:
|
|
# event
|
|
plen = 3 + reassemble_packet[2]
|
|
|
|
if len(reassemble_packet) >= plen:
|
|
# Got a complete packet.
|
|
data = reassemble_packet[0:plen]
|
|
reassemble_packet = reassemble_packet[plen:]
|
|
reassemble_timestamp = timestamp
|
|
sys.stdout.buffer.write(
|
|
struct.pack(
|
|
"!IIIII",
|
|
reassemble_timestamp // 1000,
|
|
reassemble_timestamp % 1000 * 1000,
|
|
len(data) + 4,
|
|
len(data) + 4,
|
|
_DIR_CONTROLLER_TO_HOST,
|
|
)
|
|
)
|
|
sys.stdout.buffer.write(data)
|
|
|
|
if reassemble_packet:
|
|
print(
|
|
"Error: Unknown byte in HCI stream. Remainder:",
|
|
reassemble_packet.hex(":"),
|
|
file=sys.stderr,
|
|
)
|
|
|