mirror of https://github.com/m-labs/artiq.git
58 lines
1.9 KiB
Python
58 lines
1.9 KiB
Python
#!/usr/bin/env python3
|
|
|
|
# This script makes the following assumptions:
|
|
# * tcpdump has CAP_NET_RAW capabilities set
|
|
# use # setcap cap_net_raw+eip /usr/sbin/tcpdump
|
|
|
|
import os
|
|
import argparse
|
|
import subprocess
|
|
|
|
from artiq.tools import verbosity_args, init_logger, logger, SSHClient
|
|
|
|
|
|
def get_argparser():
|
|
parser = argparse.ArgumentParser(description="ARTIQ core device "
|
|
"packet capture tool")
|
|
|
|
verbosity_args(parser)
|
|
|
|
parser.add_argument("-H", "--host", metavar="HOST",
|
|
type=str, default="lab.m-labs.hk",
|
|
help="SSH host where the development board is located")
|
|
parser.add_argument("-D", "--device", metavar="DEVICE",
|
|
type=str, default="kc705.lab.m-labs.hk",
|
|
help="address or domain corresponding to the development board")
|
|
parser.add_argument("-f", "--file", metavar="PCAP_FILE",
|
|
type=str, default="coredevice.pcap",
|
|
help="Location to retrieve the pcap file into")
|
|
|
|
parser.add_argument("command", metavar="COMMAND",
|
|
type=str, default=[], nargs=argparse.REMAINDER,
|
|
help="command to execute while capturing")
|
|
|
|
return parser
|
|
|
|
|
|
def main():
|
|
args = get_argparser().parse_args()
|
|
init_logger(args)
|
|
|
|
client = SSHClient(args.host)
|
|
|
|
sftp = client.get_sftp()
|
|
tcpdump = client.spawn_command(
|
|
"/usr/sbin/tcpdump host {device} -w {tmp}/trace.pcap", get_pty=True,
|
|
device=args.device)
|
|
|
|
try:
|
|
subprocess.check_call(args.command)
|
|
except subprocess.CalledProcessError:
|
|
logger.error("Command failed")
|
|
|
|
tcpdump.close()
|
|
sftp.get("{tmp}/trace.pcap".format(tmp=client.tmp),
|
|
args.file + ".new")
|
|
os.rename(args.file + ".new", args.file)
|
|
logger.info("Pcap file {file} retrieved".format(file=args.file))
|