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315 lines
11 KiB
Python
315 lines
11 KiB
Python
#!/usr/bin/python
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# Copyright(C) 2012 Open Information Security Foundation
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, version 2 of the License.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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try:
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import simplejson as json
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except:
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import json
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import re
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import readline
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from socket import socket, AF_UNIX, error
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from time import sleep
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import select
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import sys
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SURICATASC_VERSION = "0.9"
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VERSION = "0.1"
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SIZE = 4096
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class SuricataException(Exception):
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"""
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Generic class for suricatasc exception
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"""
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def __init__(self, value):
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self.value = value
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def __str__(self):
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return str(self.value)
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class SuricataNetException(SuricataException):
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"""
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Exception raised when network error occur.
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"""
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pass
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class SuricataCommandException(SuricataException):
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"""
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Exception raised when command is not correct.
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"""
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pass
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class SuricataReturnException(SuricataException):
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"""
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Exception raised when return message is not correct.
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"""
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pass
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class SuricataCompleter:
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def __init__(self, words):
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self.words = words
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self.generator = None
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def complete(self, text):
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for word in self.words:
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if word.startswith(text):
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yield word
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def __call__(self, text, state):
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if state == 0:
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self.generator = self.complete(text)
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try:
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return next(self.generator)
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except StopIteration:
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return None
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return None
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class SuricataSC:
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def __init__(self, sck_path, verbose=False):
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self.cmd_list=['shutdown','quit','pcap-file','pcap-file-number','pcap-file-list','iface-list','iface-stat','register-tenant','unregister-tenant','register-tenant-handler','unregister-tenant-handler']
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self.sck_path = sck_path
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self.verbose = verbose
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def json_recv(self):
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cmdret = None
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i = 0
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data = ""
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while i < 5:
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i += 1
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if sys.version < '3':
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data += self.socket.recv(SIZE)
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else:
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data += self.socket.recv(SIZE).decode('iso-8859-1')
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try:
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cmdret = json.loads(data)
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break
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except:
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sleep(0.3)
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return cmdret
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def send_command(self, command, arguments = None):
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if command not in self.cmd_list and command != 'command-list':
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raise SuricataCommandException("No such command: %s", command)
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cmdmsg = {}
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cmdmsg['command'] = command
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if (arguments != None):
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cmdmsg['arguments'] = arguments
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if self.verbose:
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print("SND: " + json.dumps(cmdmsg))
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if sys.version < '3':
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self.socket.send(json.dumps(cmdmsg))
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else:
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self.socket.send(bytes(json.dumps(cmdmsg), 'iso-8859-1'))
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ready = select.select([self.socket], [], [], 600)
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if ready[0]:
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cmdret = self.json_recv()
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else:
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cmdret = None
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if cmdret == None:
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raise SuricataReturnException("Unable to get message from server")
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if self.verbose:
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print("RCV: "+ json.dumps(cmdret))
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return cmdret
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def connect(self):
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try:
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self.socket = socket(AF_UNIX)
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self.socket.connect(self.sck_path)
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except error as err:
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raise SuricataNetException(err)
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self.socket.settimeout(10)
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#send version
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if self.verbose:
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print("SND: " + json.dumps({"version": VERSION}))
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if sys.version < '3':
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self.socket.send(json.dumps({"version": VERSION}))
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else:
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self.socket.send(bytes(json.dumps({"version": VERSION}), 'iso-8859-1'))
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ready = select.select([self.socket], [], [], 600)
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if ready[0]:
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cmdret = self.json_recv()
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else:
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cmdret = None
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if cmdret == None:
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raise SuricataReturnException("Unable to get message from server")
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if self.verbose:
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print("RCV: "+ json.dumps(cmdret))
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if cmdret["return"] == "NOK":
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raise SuricataReturnException("Error: %s" % (cmdret["message"]))
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cmdret = self.send_command("command-list")
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# we silently ignore NOK as this means server is old
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if cmdret["return"] == "OK":
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self.cmd_list = cmdret["message"]["commands"]
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self.cmd_list.append("quit")
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def close(self):
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self.socket.close()
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def parse_command(self, command):
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arguments = None
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if command.split(' ', 2)[0] in self.cmd_list:
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if "pcap-file " in command:
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try:
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parts = command.split(' ');
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except:
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raise SuricataCommandException("Arguments to command '%s' is missing" % (command))
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cmd, filename, output = parts[0], parts[1], parts[2]
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tenant = None
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if len(parts) > 3:
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tenant = parts[3]
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if cmd != "pcap-file":
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raise SuricataCommandException("Invalid command '%s'" % (command))
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else:
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arguments = {}
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arguments["filename"] = filename
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arguments["output-dir"] = output
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if tenant != None:
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arguments["tenant"] = int(tenant)
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elif "iface-stat" in command:
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try:
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[cmd, iface] = command.split(' ', 1)
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except:
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raise SuricataCommandException("Unable to split command '%s'" % (command))
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if cmd != "iface-stat":
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raise SuricataCommandException("Invalid command '%s'" % (command))
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else:
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arguments = {}
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arguments["iface"] = iface
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elif "conf-get" in command:
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try:
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[cmd, variable] = command.split(' ', 1)
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except:
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raise SuricataCommandException("Unable to split command '%s'" % (command))
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if cmd != "conf-get":
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raise SuricataCommandException("Invalid command '%s'" % (command))
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else:
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arguments = {}
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arguments["variable"] = variable
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elif "unregister-tenant-handler" in command:
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try:
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parts = command.split(' ')
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except:
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raise SuricataCommandException("Arguments to command '%s' is missing" % (command))
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cmd, tenantid, htype = parts[0], parts[1], parts[2]
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hargs = None
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if len(parts) > 3:
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hargs = parts[3]
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if cmd != "unregister-tenant-handler":
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raise SuricataCommandException("Invalid command '%s'" % (command))
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else:
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arguments = {}
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arguments["id"] = int(tenantid)
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arguments["htype"] = htype
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if hargs != None:
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arguments["hargs"] = int(hargs)
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elif "register-tenant-handler" in command:
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try:
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parts = command.split(' ')
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except:
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raise SuricataCommandException("Arguments to command '%s' is missing" % (command))
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cmd, tenantid, htype = parts[0], parts[1], parts[2]
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hargs = None
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if len(parts) > 3:
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hargs = parts[3]
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if cmd != "register-tenant-handler":
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raise SuricataCommandException("Invalid command '%s'" % (command))
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else:
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arguments = {}
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arguments["id"] = int(tenantid)
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arguments["htype"] = htype
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if hargs != None:
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arguments["hargs"] = int(hargs)
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elif "unregister-tenant" in command:
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try:
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[cmd, tenantid] = command.split(' ', 1)
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except:
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raise SuricataCommandException("Unable to split command '%s'" % (command))
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if cmd != "unregister-tenant":
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raise SuricataCommandException("Invalid command '%s'" % (command))
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else:
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arguments = {}
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arguments["id"] = int(tenantid)
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elif "register-tenant" in command:
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try:
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[cmd, tenantid, filename] = command.split(' ', 2)
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except:
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raise SuricataCommandException("Arguments to command '%s' is missing" % (command))
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if cmd != "register-tenant":
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raise SuricataCommandException("Invalid command '%s'" % (command))
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else:
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arguments = {}
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arguments["id"] = int(tenantid)
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arguments["filename"] = filename
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elif "reload-tenant" in command:
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try:
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[cmd, tenantid, filename] = command.split(' ', 2)
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except:
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raise SuricataCommandException("Arguments to command '%s' is missing" % (command))
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if cmd != "reload-tenant":
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raise SuricataCommandException("Invalid command '%s'" % (command))
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else:
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arguments = {}
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arguments["id"] = int(tenantid)
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arguments["filename"] = filename
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else:
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cmd = command
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else:
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raise SuricataCommandException("Unknown command '%s'" % (command))
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return (cmd, arguments)
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def interactive(self):
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print("Command list: " + ", ".join(self.cmd_list))
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try:
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readline.set_completer(SuricataCompleter(self.cmd_list))
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readline.set_completer_delims(";")
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readline.parse_and_bind('tab: complete')
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while True:
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if sys.version < '3':
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command = raw_input(">>> ").strip()
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else:
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command = input(">>> ").strip()
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if command == "quit":
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break;
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try:
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(cmd, arguments) = self.parse_command(command)
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except SuricataCommandException as err:
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print(err)
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continue
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cmdret = self.send_command(cmd, arguments)
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#decode json message
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if cmdret["return"] == "NOK":
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print("Error:")
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print(json.dumps(cmdret["message"], sort_keys=True, indent=4, separators=(',', ': ')))
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else:
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print("Success:")
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print(json.dumps(cmdret["message"], sort_keys=True, indent=4, separators=(',', ': ')))
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except KeyboardInterrupt:
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print("[!] Interrupted")
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