Python Netlink library
Pyroute2 is a pure Python netlink and Linux network configuration library. It requires only Python stdlib, no 3rd party libraries. Later it can change, but the deps tree will remain as simple, as it is possible.
The library provides several modules:
- Netlink protocol implementations (RTNetlink, TaskStats, etc)
rtnl, network settings — addresses, routes, traffic controls
nl80211 — wireless functions API (work in progress)
nfnetlink — netfilter API: ipset (work in progress), …
ipq — simplest userspace packet filtering, iptables QUEUE target
taskstats — extended process statistics
Simple netlink socket object, that can be used in poll/select
Network configuration module IPRoute provides API that in some way resembles ip/tc functionality
IPDB is an async transactional database of Linux network settings
More samples you can read in the project documentation.
The lowest possible layer, simple socket interface. This socket supports normal socket API and can be used in poll/select:
from pyroute2 import IPRSocket # create the socket ip = IPRSocket() # bind ip.bind() # get and parse a broadcast message ip.get() # close ip.close()
Low-level IPRoute utility – Linux network configuration. IPRoute usually doesn’t rely on external utilities, but in some cases, when the kernel doesn’t provide the functionality via netlink (like on RHEL6.5), it transparently uses also brctl and sysfs to setup bridges and bonding interfaces:
from pyroute2 import IPRoute # get access to the netlink socket ip = IPRoute() # print interfaces print(ip.get_links()) # release Netlink socket ip.close()
High-level transactional interface, IPDB, a network settings DB:
from pyroute2 import IPDB # local network settings ip = IPDB() # create bridge and add ports and addresses # transaction will be started with `with` statement # and will be committed at the end of the block try: with ip.create(kind='bridge', ifname='rhev') as i: i.add_port(ip.interfaces.em1) i.add_port(ip.interfaces.em2) i.add_ip('10.0.0.2/24') except Exception as e: print(e) finally: ip.release()
The project contains several modules for different types of netlink messages, not only RTNL.
network namespace samples
Network namespace manipulation:
from pyroute2 import netns # create netns netns.create('test') # list print(netns.listnetns()) # remove netns netns.remove('test')
Create veth interfaces pair and move to netns:
from pyroute2 import IPDB ip = IPDB() # create interface pair ip.create(ifname='v0p0', kind='veth', peer='v0p1').commit() # move peer to netns with ip.interfaces.v0p1 as veth: veth.net_ns_fd = 'test' # don't forget to release before exit ip.release()
List interfaces in some netns:
from pyroute2 import NetNS from pprint import pprint ns = NetNS('test') pprint(ns.get_links()) ns.close()
More details and samples see in the documentation.
make install or pip install pyroute2
Python >= 2.6
The pyroute2 testing framework requires flake8, coverage, nosetests.
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