ffmap-backend/batman.py

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#!/usr/bin/env python3
import subprocess
import json
import re
class batman:
""" Bindings for B.A.T.M.A.N. advanced batctl tool
"""
def __init__(self, mesh_interface = "bat0"):
self.mesh_interface = mesh_interface
def vis_data(self,batadv_vis=False):
vds = self.vis_data_batctl_legacy()
if batadv_vis:
vds += self.vis_data_batadv_vis()
return vds
def vis_data_helper(self,lines):
vd = []
for line in lines:
try:
utf8_line = line.decode("utf-8")
vd.append(json.loads(utf8_line))
except e:
pass
return vd
def vis_data_batctl_legacy(self):
""" Parse "batctl -m <mesh_interface> vd json -n" into an array of dictionaries.
"""
output = subprocess.check_output(["batctl","-m",self.mesh_interface,"vd","json","-n"])
lines = output.splitlines()
vds = self.vis_data_helper(lines)
return vds
def vis_data_batadv_vis(self):
""" Parse "batadv-vis -i <mesh_interface> -f json" into an array of dictionaries.
"""
output = subprocess.check_output(["batadv-vis","-i",self.mesh_interface,"-f","json"])
lines = output.splitlines()
return self.vis_data_helper(lines)
def gateway_list(self):
""" Parse "batctl -m <mesh_interface> gwl -n" into an array of dictionaries.
"""
output = subprocess.check_output(["batctl","-m",self.mesh_interface,"gwl","-n"])
output_utf8 = output.decode("utf-8")
lines = output_utf8.splitlines()
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own_mac = re.match(r"^.*MainIF/MAC: [^/]+/([0-9a-f:]+).*$", lines[0]).group(1)
gw = []
gw_mode = self.gateway_mode()
if gw_mode['mode'] == 'server':
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gw.append(own_mac)
for line in lines:
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gw_line = re.match(r"^(?:=>)? +([0-9a-f:]+) ", line)
if gw_line:
gw.append(gw_line.group(1))
return gw
def gateway_mode(self):
""" Parse "batctl -m <mesh_interface> gw"
"""
output = subprocess.check_output(["batctl","-m",self.mesh_interface,"gw"])
elements = output.decode("utf-8").split()
mode = elements[0]
if mode == "server":
return {'mode': 'server', 'bandwidth': elements[3]}
else:
return {'mode': mode}
if __name__ == "__main__":
bc = batman()
vd = bc.vis_data()
gw = bc.gateway_list()
for x in vd:
print(x)
print(gw)
print(bc.gateway_mode())