檢查Scapy's traceroute
function's code表明,這是非常簡單的,而它的大部分強大的功能在於與TracerouteResult
類是從一個簡單的sr
調用接收的結果實例,因爲可以通過當前執行中可以看出:
@conf.commands.register
def traceroute(target, dport=80, minttl=1, maxttl=30, sport=RandShort(), l4 = None, filter=None, timeout=2, verbose=None, **kargs):
"""Instant TCP traceroute
traceroute(target, [maxttl=30,] [dport=80,] [sport=80,] [verbose=conf.verb]) -> None
"""
if verbose is None:
verbose = conf.verb
if filter is None:
# we only consider ICMP error packets and TCP packets with at
# least the ACK flag set *and* either the SYN or the RST flag
# set
filter="(icmp and (icmp[0]=3 or icmp[0]=4 or icmp[0]=5 or icmp[0]=11 or icmp[0]=12)) or (tcp and (tcp[13] & 0x16 > 0x10))"
if l4 is None:
a,b = sr(IP(dst=target, id=RandShort(), ttl=(minttl,maxttl))/TCP(seq=RandInt(),sport=sport, dport=dport),
timeout=timeout, filter=filter, verbose=verbose, **kargs)
else:
# this should always work
filter="ip"
a,b = sr(IP(dst=target, id=RandShort(), ttl=(minttl,maxttl))/l4,
timeout=timeout, filter=filter, verbose=verbose, **kargs)
a = TracerouteResult(a.res)
if verbose:
a.show()
return a,b
因此,您可以以類似於此處執行的方式調用sr
,但也要使用源地址,並將結果傳遞給TracerouteResult
類,以便利用其強大的功能。
注意:等效方法可應用於Scapy's traceroute6
function's code for IPv6。
@Yeol謝謝,我不知道爲什麼它沒有發生,我可以查找代碼。 – indichimp