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Name: pyroute2
Version: 0.4.21
Summary: Python Netlink library
Home-page: https://github.com/svinota/pyroute2
Author: Peter V. Saveliev
Author-email: peter@svinota.eu
License: dual license GPLv2+ and Apache v2
Description: pyroute2
========
Pyroute2 is a pure Python **netlink** library. It requires only Python stdlib,
no 3rd party libraries. The library was started as an RTNL protocol
implementation, so the name is **pyroute2**, but now it supports many netlink
protocols. Some supported netlink families and protocols:
* **rtnl**, network settings --- addresses, routes, traffic controls
* **nfnetlink** --- netfilter API: **ipset**, **nftables**, ...
* **ipq** --- simplest userspace packet filtering, iptables QUEUE target
* **devlink** --- manage and monitor devlink-enabled hardware
* **generic** --- generic netlink families
* **nl80211** --- wireless functions API (basic support)
* **taskstats** --- extended process statistics
* **acpi_events** --- ACPI events monitoring
* **thermal_events** --- thermal events monitoring
* **VFS_DQUOT** --- disk quota events monitoring
the simplest usecase
--------------------
The socket objects, provided by the library, are actual socket objects with a
little bit extended API. The additional functionality aims to:
* Help to open/bind netlink sockets
* Discover generic netlink protocols and multicast groups
* Construct, encode and decode netlink messages
Maybe the simplest usecase is to monitor events. Disk quota events::
from pyroute2 import DQuotSocket
# DQuotSocket automatically performs discovery and binding,
# since it has no other functionality beside of the monitoring
with DQuotSocket() as ds:
for message in ds.get():
print(message)
Or IPRoute::
from pyroute2 import IPRoute
with IPRoute() as ipr:
# With IPRoute objects you have to call bind() manually
ipr.bind()
for message in ipr.get():
print(message)
rtnetlink sample
----------------
More samples you can read in the project documentation.
Low-level **IPRoute** utility --- Linux network configuration.
The **IPRoute** class is a 1-to-1 RTNL mapping. There are no implicit
interface lookups and so on.
Some examples::
from socket import AF_INET
from pyroute2 import IPRoute
# get access to the netlink socket
ip = IPRoute()
# no monitoring here -- thus no bind()
# print interfaces
print(ip.get_links())
# create VETH pair and move v0p1 to netns 'test'
ip.link_create(ifname='v0p0', peer='v0p1', kind='veth')
idx = ip.link_lookup(ifname='v0p1')[0]
ip.link('set',
index=idx,
net_ns_fd='test')
# bring v0p0 up and add an address
idx = ip.link_lookup(ifname='v0p0')[0]
ip.link('set',
index=idx,
state='up')
ip.addr('add',
index=idx,
address='10.0.0.1',
broadcast='10.0.0.255',
prefixlen=24)
# create a route with metrics
ip.route('add',
dst='172.16.0.0/24',
gateway='10.0.0.10',
metrics={'mtu': 1400,
'hoplimit': 16})
# create MPLS lwtunnel
# $ sudo modprobe mpls_iptunnel
ip.route('add',
dst='172.16.0.0/24',
oif=idx,
encap={'type': 'mpls',
'labels': '200/300'})
# create MPLS route: push label
# $ sudo modprobe mpls_router
# $ sudo sysctl net.mpls.platform_labels=1024
ip.route('add',
family=AF_MPLS,
oif=idx,
dst=0x200,
newdst=[0x200, 0x300])
# release Netlink socket
ip.close()
High-level transactional interface, **IPDB**, a network settings DB::
from pyroute2 import IPDB
#
# The `with` statement automatically calls `IPDB.release()`
# in the case of an exception.
with IPDB() as ip:
#
# Create bridge and add ports and addresses.
#
# Transaction will be started by `with` statement
# and will be committed at the end of the block
with ip.create(kind='bridge', ifname='rhev') as i:
i.add_port('em1')
i.add_port('em2')
i.add_ip('10.0.0.2/24')
# --> <-- Here the system state is as described in
# the transaction, if no error occurs. If
# there is an error, all the changes will be
# rolled back.
The IPDB arch allows to use it transparently with network
namespaces::
from pyroute2 import IPDB
from pyroute2 import NetNS
# Create IPDB to work with the 'test' ip netns.
#
# Pls notice, that IPDB itself will work in the
# main netns, only the netlink transport is
# working in the namespace `test`.
ip = IPDB(nl=NetNS('test'))
# Wait until someone will set up ipaddr 127.0.0.1
# in the netns on the loopback device
ip.interfaces.lo.wait_ip('127.0.0.1')
# The IPDB object must be released before exit to
# sync all the possible changes that are in progress.
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.
installation
------------
`make install` or `pip install pyroute2`
requires
--------
Python >= 2.7
The pyroute2 testing framework requires **flake8**, **coverage**,
**nosetests**.
links
-----
* home: https://github.com/svinota/pyroute2
* bugs: https://github.com/svinota/pyroute2/issues
* pypi: https://pypi.python.org/pypi/pyroute2
* docs: http://docs.pyroute2.org/
* list: https://groups.google.com/d/forum/pyroute2-dev
Platform: UNKNOWN
Classifier: License :: OSI Approved :: GNU General Public License v2 or later (GPLv2+)
Classifier: License :: OSI Approved :: Apache Software License
Classifier: Programming Language :: Python
Classifier: Topic :: Software Development :: Libraries :: Python Modules
Classifier: Topic :: System :: Networking
Classifier: Topic :: System :: Systems Administration
Classifier: Operating System :: POSIX :: Linux
Classifier: Intended Audience :: Developers
Classifier: Intended Audience :: System Administrators
Classifier: Intended Audience :: Telecommunications Industry
Classifier: Programming Language :: Python :: 2.6
Classifier: Programming Language :: Python :: 2.7
Classifier: Programming Language :: Python :: 3
Classifier: Development Status :: 4 - Beta
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