tcpdump.py 文件源码

def setUp(self):
        """
        Set up.
        """
        self.iface = self.params.get("interface", default="")
        self.count = self.params.get("count", default="500")
        self.peer_ip = self.params.get("peer_ip", default="")
        self.drop = self.params.get("drop_accepted", default="10")
        # Check if interface exists in the system
        interfaces = netifaces.interfaces()
        if self.iface not in interfaces:
            self.cancel("%s interface is not available" % self.iface)
        if not self.peer_ip:
            self.cancel("peer ip should specify in input")

        # Install needed packages
        smm = SoftwareManager()
        if not smm.check_installed("tcpdump") and not smm.install("tcpdump"):
            self.cancel("Can not install tcpdump")