Obtains network data from GNU/Linux Operating Systems.

osnetwork.py

""" Functions for obtaining network information from a system. """ 
                                                                                
import subprocess as sp
                                                                                
__version__ = "v1.0"
__author__ = "@ivanleoncz"


def get_nic_ipv4(nic):
    """                                                                         
        Get IP address from a NIC.
                                                                                
        Parameter
        ---------
        nic : str
            Network Interface Card used for the query.
            
        Returns
        -------                                                                 
        ipaddr : str
            Ipaddress from the NIC provided as parameter.                       
    """                                                                         
    result = None                                                               
    try:                                                                        
        result = sp.check_output(["ip", "-4", "addr", "show", nic],             
                                stderr=sp.STDOUT)                               
    except Exception:                                                           
        return "Unkown NIC: %s" % nic                                           
    result = result.decode().splitlines()                                       
    ipaddr = [l.split()[1].split('/')[0] for l in result if "inet" in l]        
    return ipaddr[0]                                                            
                                                                                
                                                                                
def get_nics():                                                                 
    """                                                                         
        Get all NICs from the Operating System.                                 
                                                                                
        Returns                                                                 
        -------                                                                 
        nics : list                                                             
            All Network Interface Cards.                                        
    """                                                                         
    result = sp.check_output(["ip", "addr", "show"])                            
    result = result.decode().splitlines()                                       
    nics = [l.split()[1].strip(':') for l in result if l[0].isdigit()]          
    return nics