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class PingError(Exception):
pass
class TimeExceeded(PingError):
pass
class TimeToLiveExpired(TimeExceeded):
def __init__(self, message="Time exceeded: Time To Live expired.", ip_header=None, icmp_header=None):
self.ip_header = ip_header
self.icmp_header = icmp_header
self.message = message
super().__init__(self.message)
class DestinationUnreachable(PingError):
def __init__(self, message="Destination unreachable.", ip_header=None, icmp_header=None):
self.ip_header = ip_header
self.icmp_header = icmp_header
self.message = message if self.ip_header is None else message + " (Host='{}')".format(self.ip_header.get("src_addr"))
super().__init__(self.message)
class DestinationHostUnreachable(DestinationUnreachable):
def __init__(self, message="Destination unreachable: Host unreachable.", ip_header=None, icmp_header=None):
self.ip_header = ip_header
self.icmp_header = icmp_header
self.message = message if self.ip_header is None else message + " (Host='{}')".format(self.ip_header.get("src_addr"))
super().__init__(self.message)
class HostUnknown(PingError):
def __init__(self, message="Cannot resolve: Unknown host.", dest_addr=None):
self.dest_addr = dest_addr
self.message = message if self.dest_addr is None else message + " (Host='{}')".format(self.dest_addr)
super().__init__(self.message)
class Timeout(PingError):
def __init__(self, message="Request timeout for ICMP packet.", timeout=None):
self.timeout = timeout
self.message = message if self.timeout is None else message + " (Timeout={}s)".format(self.timeout)
super().__init__(self.message)
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