mirror of https://github.com/m-labs/artiq.git
57 lines
1.8 KiB
Python
57 lines
1.8 KiB
Python
#!/usr/bin/env python3
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# This script makes the following assumptions:
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# * tcpdump has CAP_NET_RAW capabilities set
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# use # setcap cap_net_raw+eip /usr/sbin/tcpdump
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import argparse
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import subprocess
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from artiq.tools import verbosity_args, init_logger, logger, SSHClient
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def get_argparser():
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parser = argparse.ArgumentParser(description="ARTIQ core device "
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"packet capture tool")
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verbosity_args(parser)
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parser.add_argument("--host", metavar="HOST",
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type=str, default="lab.m-labs.hk",
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help="SSH host where the development board is located")
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parser.add_argument("-i", "--ip", metavar="IP",
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type=str, default="kc705.lab.m-labs.hk",
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help="IP address corresponding to the development board")
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parser.add_argument("-f", "--file", metavar="PCAP_FILE",
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type=str, default="coredevice.pcap",
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help="Location to retrieve the pcap file into")
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parser.add_argument("command", metavar="COMMAND",
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type=str, default=[], nargs="+",
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help="command to execute while capturing")
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return parser
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def main():
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args = get_argparser().parse_args()
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init_logger(args)
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client = SSHClient(args.host)
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sftp = client.get_sftp()
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tcpdump = client.spawn_command(
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"/usr/sbin/tcpdump host {ip} -w {tmp}/trace.pcap", get_pty=True,
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ip=args.ip)
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try:
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subprocess.check_call(args.command)
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except subprocess.CalledProcessError:
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logger.error("Command failed")
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sys.exit(1)
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tcpdump.close()
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sftp.get("{tmp}/trace.pcap".format(tmp=client.tmp),
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args.file)
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logger.info("Pcap file {file} retrieved".format(file=args.file))
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