defrun_pxe(test,params,env):""" PXE test: 1) Snoop the tftp packet in the tap device. 2) Wait for some seconds. 3) Check whether we could capture TFTP packets.
@param params: Dictionary with the test parameters. @param env: Dictionary with test environment. """vm=env.get_vm(params["main_vm"])vm.verify_alive()timeout=int(params.get("pxe_timeout",60))logging.info("Try to boot from PXE")output=aexpect.run_fg("tcpdump -nli %s"%vm.get_ifname(),logging.debug,"(pxe capture) ",timeout)[1]logging.info("Analyzing the tcpdump result...")ifnot"tftp"inoutput:raiseerror.TestFail("Couldn't find any TFTP packets after %s seconds"%timeout)logging.info("Found TFTP packet")