So I'm trying to get scapy to work on my windows computer. After a lot of work I finally was able to load the library without any errors. However when I call the function sniff(count=1) I get an error. It seems that a variable called "device" is getting the value None. Here is the error :
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "C:\Python34\lib\site-packages\scapy\arch\windows\__init__.py", line 445, in sniff
s = L2socket(type=ETH_P_ALL, *arg, **karg)
File "C:\Python34\lib\site-packages\scapy\arch\pcapdnet.py", line 266, in __init__
self.ins = open_pcap(iface, 1600, self.promisc, 100)
File "C:\Python34\lib\site-packages\scapy\arch\windows\__init__.py", line 223, in <lambda>
pcapdnet.open_pcap = lambda iface,*args,**kargs: _orig_open_pcap(pcap_name(iface),*args,**kargs)
File "C:\Python34\lib\site-packages\scapy\arch\pcapdnet.py", line 251, in <lambda>
open_pcap = lambda *args,**kargs: _PcapWrapper_pypcap(*args,**kargs)
File "C:\Python34\lib\site-packages\scapy\arch\pcapdnet.py", line 215, in __init__
self.iface = create_string_buffer(device.encode('ascii'))
AttributeError: 'NoneType' object has no attribute 'encode'
Thanks In Advance For Any Help :)
After downloading the new development version and tinkering around with the timeouts of some of the powershell commands I fixed it! Guess it was just a bug with the old version. Scapy doesn't have the best Windows support.
Related
I am trying to build a Networkscanner that scans my localnetwork.
Here is how I would do it:
Create an ARP Request.
Create an Ethernet Frame.
Place the ARP Request inside the Ethernet Frame.
Send the combined frame and receive responses.
Then parse the responses and print the results.
Here is my code so far:
#!/usr/bin/env python3
import scapy.all as scapy
IP = 'here i would enter my IP adress'
def scan(ip):
arp_packet = scapy.ARP(pdst=ip)
broadcast_packet = scapy.Ether(dst='ff:ff:ff:ff:ff:ff')
arp_broadcast_packet = broadcast_packet/arp_packet
scapy.srp(arp_broadcast_packet, timeout = 1, verbose = False)
scan(IP)
However I am getting the error message :
AttributeError: 'L2bpfSocket' object has no attribute 'ins'
Here is the complete message:
Traceback (most recent call last):
File "/Users/Uni/Dropbox/Mein Mac (Elias MacBook Pro)/Desktop/wifi2.py", line 12, in <module>
scan(IP)
File "/Users/Uni/Dropbox/Mein Mac (Elias MacBook Pro)/Desktop/wifi2.py", line 10, in scan
scapy.srp(arp_broadcast_packet, timeout = 1, verbose = False)
File "/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/site-packages/scapy/sendrecv.py", line 552, in srp
s = conf.L2socket(promisc=promisc, iface=iface,
File "/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/site-packages/scapy/arch/bpf/supersocket.py", line 242, in __init__
super(L2bpfListenSocket, self).__init__(*args, **kwargs)
File "/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/site-packages/scapy/arch/bpf/supersocket.py", line 62, in __init__
(self.ins, self.dev_bpf) = get_dev_bpf()
File "/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/site-packages/scapy/arch/bpf/core.py", line 114, in get_dev_bpf
raise Scapy_Exception("No /dev/bpf handle is available !")
scapy.error.Scapy_Exception: No /dev/bpf handle is available !
Exception ignored in: <function _L2bpfSocket.__del__ at 0x7fc3220493a0>
Traceback (most recent call last):
File "/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/site-packages/scapy/arch/bpf/supersocket.py", line 139, in __del__
self.close()
File "/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/site-packages/scapy/arch/bpf/supersocket.py", line 211, in close
if not self.closed and self.ins is not None:
AttributeError: 'L2bpfSocket' object has no attribute 'ins'
Elias-MBP:~ Uni$
I read that it could be do to the program trying to close a L2bpfSocket that couldn't be created, therefore not having a Attribute ins.
However I have no clue how to fix this, or why the L2bpfSocket couldn't be created in the first place.
Make sure you're running your script as root.
The second issue isn't important, the main one being that Scapy can't open a /dev/bpf handler.
I am having trouble with the pysmt solvers. I am getting the following error message:
AttributeError: 'module' object has no attribute 'Z3_mk_and'
whenever I try to both:
(1) Instantiate a solver via Solver() and
(2) Run pysmt-install --check
Here is the full stack trace, incited from method 1:
Traceback (most recent call last):
File "ex.py", line 15, in <module>
solver = s.Solver()
File "/Users/harper/anaconda2/lib/python2.7/site-packages/pysmt/shortcuts.py", line 910, in Solver
return get_env().factory.Solver(name=name,
File "/Users/harper/anaconda2/lib/python2.7/site-packages/pysmt/environment.py", line 158, in factory
self._factory = pysmt.factory.Factory(self)
File "/Users/harper/anaconda2/lib/python2.7/site-packages/pysmt/factory.py", line 86, in __init__
self._get_available_solvers()
File "/Users/harper/anaconda2/lib/python2.7/site-packages/pysmt/factory.py", line 222, in _get_available_solvers
from pysmt.solvers.z3 import Z3Solver
File "/Users/harper/anaconda2/lib/python2.7/site-packages/pysmt/solvers/z3.py", line 295, in <module>
class Z3Converter(Converter, DagWalker):
File "/Users/harper/anaconda2/lib/python2.7/site-packages/pysmt/solvers/z3.py", line 859, in Z3Converter
walk_and = make_walk_nary(z3.Z3_mk_and)
AttributeError: 'module' object has no attribute 'Z3_mk_and'
I've tried so much to fix this, like uninstalling and reinstalling z3 (supposedly successfully), and pip installing z3-solver (which fails), and I can't figure out what's wrong.
Please note that the proper way to install a solver for pysmt is through pysmt-install. This guarantees that the version of the solver has been tested.
This has nothing really to do with z3; but rather directly with pysmt itself. Most likely pysmt isn't keeping up-to-date with changes in z3. You should file a ticket directly at their site: https://github.com/pysmt/pysmt/issues
I am trying to do parallel ssh on servers. While doing this, i am getting "TypeError: 'NoneType' object is not iterable" this error. Kindly help.
My script is below
from pssh import ParallelSSHClient
from pssh.exceptions import AuthenticationException, UnknownHostException, ConnectionErrorException
def parallelsshjob():
client = ParallelSSHClient(['10.84.226.72','10.84.226.74'], user = 'root', password = 'XXX')
try:
output = client.run_command('racadm getsvctag', sudo=True)
print output
except (AuthenticationException, UnknownHostException, ConnectionErrorException):
pass
#print output
if __name__ == '__main__':
parallelsshjob()
And the Traceback is below
Traceback (most recent call last):
File "parallelssh.py", line 17, in <module>
parallelsshjob()
File "parallelssh.py", line 10, in parallelsshjob
output = client.run_command('racadm getsvctag', sudo=True)
File "/Library/Python/2.7/site-packages/pssh/pssh_client.py", line 520, in run_command
raise ex
TypeError: 'NoneType' object is not iterable
Help me with the solution and also suggest me to use ssh-agent in this same script. Thanks in advance.
From reading the code and debugging a bit on my laptop, I believe the issue is that you don't have a file called ~/.ssh/config. It seems that parallel-ssh has a dependency on OpenSSH configuration, and this is the error you get when that file is missing.
read_openssh_config returns None here: https://github.com/pkittenis/parallel-ssh/blob/master/pssh/utils.py#L79
In turn, SSHClient.__init__ blows up when trying to unpack the values it expects to receive: https://github.com/pkittenis/parallel-ssh/blob/master/pssh/ssh_client.py#L97.
The fix is presumably to get some sort of OpenSSH config file in place, but I'm sorry to say I know nothing about that.
EDIT
After cleaning up some of parallel-ssh's exception handling, here's a better stack trace for the error:
Traceback (most recent call last):
File "test.py", line 11, in <module>
parallelsshjob()
File "test.py", line 7, in parallelsshjob
output = client.run_command('racadm getsvctag', sudo=True)
File "/Users/smarx/test/pssh/venv/lib/python2.7/site-packages/pssh/pssh_client.py", line 517, in run_command
self.get_output(cmd, output)
File "/Users/smarx/test/pssh/venv/lib/python2.7/site-packages/pssh/pssh_client.py", line 601, in get_output
(channel, host, stdout, stderr, stdin) = cmd.get()
File "/Users/smarx/test/pssh/venv/lib/python2.7/site-packages/gevent/greenlet.py", line 480, in get
self._raise_exception()
File "/Users/smarx/test/pssh/venv/lib/python2.7/site-packages/gevent/greenlet.py", line 171, in _raise_exception
reraise(*self.exc_info)
File "/Users/smarx/test/pssh/venv/lib/python2.7/site-packages/gevent/greenlet.py", line 534, in run
result = self._run(*self.args, **self.kwargs)
File "/Users/smarx/test/pssh/venv/lib/python2.7/site-packages/pssh/pssh_client.py", line 559, in _exec_command
channel_timeout=self.channel_timeout)
File "/Users/smarx/test/pssh/venv/lib/python2.7/site-packages/pssh/ssh_client.py", line 98, in __init__
host, config_file=_openssh_config_file)
TypeError: 'NoneType' object is not iterable
This was seemingly a regression in the 0.92.0 version of the library which is now resolved in 0.92.1. Previous versions also work. OpenSSH config should not be a dependency.
To answer your SSH agent question, if there is one running and enabled in the user session it gets used automatically. If you would prefer to provide a private key programmatically can do the following
from pssh import ParallelSSHClient
from pssh.utils import load_private_key
pkey = load_private_key('my_private_key')
client = ParallelSSHClient(hosts, pkey=pkey)
Can also provide an agent with multiple keys programmatically, per below
from pssh import ParallelSSHClient
from pssh.utils import load_private_key
from pssh.agent import SSHAgent
pkey = load_private_key('my_private_key')
agent = SSHAgent()
agent.add_key(pkey)
client = ParallelSSHClient(hosts, agent=agent)
See documentation for more examples.
I am new to python. I am trying to use track_from_file method in pyechonest to create a track object. This is the code I wrote:
from pyechonest import config
from pyechonest.track import track_from_file
config.ECHO_NEST_API_KEY = "KRZG4XOVUQRKI45DP"
f = open("ShayneWard-NoPromises.mp3")
t = track_from_file(f, 'mp3')
But this is not working. I got an EchoNestIOError. This is the full error Traceback that i got.
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "build/bdist.linux-x86_64/egg/pyechonest/track.py", line 243, in track_from_file
File "build/bdist.linux-x86_64/egg/pyechonest/track.py", line 331, in track_from_md5
File "build/bdist.linux-x86_64/egg/pyechonest/track.py", line 209, in _profile
File "build/bdist.linux-x86_64/egg/pyechonest/util.py", line 257, in callm pyechonest.util.
EchoNestIOError: Echo Nest Unknown Error
Can anyone tell me what have I done wrong?
I finally figured it out. It seems that the upload does not take place through the proxy server of my university network which uses NAT.
I'm testing ebaysdk Python library that lets you connect to ebay. Now I'm trying examples from: https://github.com/timotheus/ebaysdk-python/
So far I got stuck at this example:
from ebaysdk.shopping import Connection as Shopping
shopping = Shopping(domain="svcs.sandbox.ebay.com", config_file="ebay.yaml")
response = shopping.execute('FindPopularItems',
{'QueryKeywords': 'Python'})
print response.disct()
When I run it. It gives me this error:
Traceback (most recent call last):
File "ebay-test.py", line 13, in <module>
{'QueryKeywords': 'Python'})
File "/usr/local/lib/python2.7/dist-packages/ebaysdk-2.1.0-py2.7.egg/ebaysdk/connection.py", line 123, in execute
self.error_check()
File "/usr/local/lib/python2.7/dist-packages/ebaysdk-2.1.0-py2.7.egg/ebaysdk/connection.py", line 193, in error_check
estr = self.error()
File "/usr/local/lib/python2.7/dist-packages/ebaysdk-2.1.0-py2.7.egg/ebaysdk/connection.py", line 305, in error
error_array.extend(self._get_resp_body_errors())
File "/usr/local/lib/python2.7/dist-packages/ebaysdk-2.1.0-py2.7.egg/ebaysdk/shopping/__init__.py", line 188, in _get_resp_body_errors
dom = self.response.dom()
File "/usr/local/lib/python2.7/dist-packages/ebaysdk-2.1.0-py2.7.egg/ebaysdk/response.py", line 229, in dom
return self._dom
File "/usr/local/lib/python2.7/dist-packages/ebaysdk-2.1.0-py2.7.egg/ebaysdk/response.py", line 216, in __getattr__
return getattr(self._obj, name)
AttributeError: 'Response' object has no attribute '_dom'
Am I missing something here or it could be some kind of bug in library?
Do you have a config file? I had a lot of problems getting started with this SDK. To get the yaml config file to work, I had to specify the directory that it was in. So in your example, it would be:
shopping = Shopping(domain="svcs.sandbox.ebay.com", config_file=os.path.join(os.path.dirname(os.path.realpath(__file__)), 'ebay.yaml'))
You should also be able to specify debug=true in your Shopping() declaration as in Shopping(debug=True).
Make sure if you have not, to specify your APP_ID and other necessary values in the config file.
You have the wrong domain, it should be open.api.sandbox.ebay.com. See this page on the ebaysdk github.