#!/usr/bin/env python
#
# author: guangjun.lv
# V 1.0
#
# bonding interface, bridge interface management utility
# bonding create, destroy, port join bonding, leave bonding
# bridge create, destroy, port in bridge, leave bridge, bridge patch ports
# bonding, bridge interface, ip, gw configuration
import os
import commands
import logging
LINK_STATE_UP = 1
LINK_STATE_DOWN = 0
dns_file = '/etc/resolv.conf'
netdev_files = '/etc/sysconfig/network-scripts'
# logging for information, debug
logger = logging.getLogger("net_config")
formatter = logging.Formatter('%(asctime)s %(levelname)-8s %(message)s', '%a, %d %b %Y %H:%M:%S',)
file_handler = logging.FileHandler("/tmp/net_config.log")
file_handler.setFormatter(formatter)
logger.addHandler(file_handler)
logger.setLevel(logging.INFO)
# apply to restart network service
# after configure bonding,bridge,ip,gw,etc...
def restart_network_service():
os.system('systemctl restart network')
# bridge interface
def join_port_to_br(br_name, port):
if len(br_name) == 0 or not len(port):
logger.info('join_port_to_br: invalid brname or port name')
return False
port_file = netdev_files + '/ifcfg-' + port
if os.path.exists(port_file) == False:
logger.info('join_port_to_br: invalid port entry')
return False
if port_in_bonds(port):
logger.info('join_port_to_br: port is in bonding inf')
return False
if not br_exist(br_name):
logger.info('join_port_to_br: br isnot exist')
return False
if port_in_br(br_name, port):
logger.info('join_port_to_br: %s has been in %s' % (port, br_name))
return True
commands = 'ovs-vsctl add-port %s %s 2>/dev/null' % (br_name, port)
ret = not os.system(commands)
if not ret:
logger.info('join_port_to_br: add port %s to %s fail' % (port, br_name))
return ret
def leave_port_from_br(br_name, port):
if len(br_name) == 0 or not len(port):
logger.info('leave_port_from_br: invalid brname or port name')
return False
if not port_in_br(br_name, port):
logger.info('leave_port_from_br: %s not in %' % (port, br_name))
return False
commands = 'ovs-vsctl del-port %s %s 2>/dev/null' % (br_name, port)
ret = not os.system(commands)
if not ret:
logger.info('delete_port_from_br: delete port %s from %s fail' % (port, br_name))
return ret
def create_br(br_name):
if len(br_name) == 0:
logger.info('create_br: invalid brname')
return False
if br_exist(br_name):
logger.info('create_br: br has been created')
return True
br_file = netdev_files + '/ifcfg-' + br_name
commands = 'ovs-vsctl add-br %s 2>/dev/null' % (br_name)
ret = not os.system(commands)
if (False == ret):
logger.info('create_br: fail, commands: %s' % commands)
else:
if not os.path.exists(br_file):
fp = open(br_file, 'w')
fp.writelines('IPADDR=\nNETMASK=\nGATEWAY=\nONBOOT=yes\n')
fp.writelines('DEVICE=%s\nNAME=%s\nDEVICETYPE=ovs\n' % (br_name, br_name))
fp.writelines('OVSBOOTPROTO=none\nTYPE=OVSBridge')
fp.close()
logger.info('create_br: success, commands: %s' % commands)
return ret
def destroy_br(br_name):
if len(br_name) == 0:
logger.info('destroy_br: invalid brname')
return False
if not br_exist(br_name):
logger.info('destroy_br: br %s isnot exist' % br_name)
return False
commands = 'ovs-vsctl del-br %s 2>/dev/null' % (br_name)
ret = not os.system(commands)
if (False == ret):
logger.info('destroy_br: fail, commands: %s' % commands)
else:
br_file = netdev_files + '/ifcfg-' + br_name
commands = 'rm -f %s 2>/dev/null' % br_file
os.system(commands)
logger.info('destroy_br: success, commands: %s' % commands)
return ret
def br_exist(br_name):
commands = 'ovs-vsctl list-br | grep %s 2>/dev/null' % (br_name)
ret = not not len(os.popen(commands).readline())
return ret
def get_br_of_port(port):
commands = 'ovs-vsctl port-to-br %s 2>/dev/null' % (port)
br = os.popen(commands).readline()
if len(br):
return br.strip('\n')
else:
return br
def port_in_brs(port):
commands = 'ovs-vsctl port-to-br %s 2>/dev/null' % (port)
ret = not not len(os.popen(commands).readline())
return ret
def port_in_br(br_name, port):
if len(br_name) == 0:
logger.info('port_in_br: invalid brname')
return False
if not br_exist(br_name):
logger.info('port_in_br: br isnot exist')
return False
commands = 'ovs-vsctl list-ports %s | grep %s 2>/dev/null' % (br_name, port)
ret = not not len(os.popen(commands).readline())
return ret
def create_br_patch(br1_name, br2_name):
if len(br1_name) == 0 or not len(br2_name):
logger.info('create_br_patch: invalid brname')
return False
if not br_exist(br1_name) or not br_exist(br2_name):
logger.info('create_br_patch: br isnot exist')
return False
patch_inf_name = 'patch-to-%s' % (br2_name)
patch_peer_inf_name = 'patch-to-%s' % (br1_name)
commands = 'ovs-vsctl add-port %s %s \
-- set interface %s type=patch \
-- set interface %s options:peer=%s' \
% (br1_name, patch_inf_name, patch_inf_name, patch_inf_name, patch_peer_inf_name)
ret1 = not os.system(commands)
patch_inf_name = 'patch-to-%s' % (br1_name)
patch_peer_inf_name = 'patch-to-%s' % (br2_name)
commands = 'ovs-vsctl add-port %s %s \
-- set interface %s type=patch \
-- set interface %s options:peer=%s' \
% (br2_name, patch_inf_name, patch_inf_name, patch_inf_name, patch_peer_inf_name)
ret2 = not os.system(commands)
return ret1 & ret2
def delete_br_patch(br1_name, br2_name):
if len(br1_name) == 0 or not len(br2_name):
logger.info('create_br_patch: invalid brname')
return False
if not br_exist(br1_name) or not br_exist(br2_name):
logger.info('create_br_patch: br isnot exist')
return False
patch_inf_name = 'patch-to-%s' % (br2_name)
commands = 'ovs-vsctl del-port %s %s 2>/dev/null' % (br1_name, patch_inf_name)
ret1 = not os.system(commands)
patch_inf_name = 'patch-to-%s' % (br1_name)
commands = 'ovs-vsctl del-port %s %s 2>/dev/null' % (br2_name, patch_inf_name)
ret2 = not os.system(commands)
return ret1 & ret2
def get_bridge_info():
commands = 'ovs-vsctl list-br 2>/dev/null'
br_lists = os.popen(commands).read()
if not len(br_lists):
return None
print 'get bridge and port lists:\n'
brs = br_lists.split('\n')
for br in brs:
if len(br):
commands = 'ovs-vsctl list-ports %s' % br
print 'bridge: %s\nports: %s' % (br, os.popen(commands).read())
# bonding interface
def get_bonding_inf_info_list():
bond_info_list = {}
bond_ifs = get_bonding_inf_list()
for dev in bond_ifs:
ip = get_bonding_inf_ip(dev)
mask = get_bonding_inf_ipmask(dev)
gw = get_bonding_inf_gw(dev)
state = get_bonding_inf_state(dev)
slave_nics = get_bonding_inf_nics(dev)
bond_info_list[dev] = [ip,mask,gw,state,slave_nics]
return bond_info_list
def create_bonding_inf(inf_name, nics):
if len(inf_name) == 0 or len(nics) == 0:
logger.info('create_bonding_inf: invalid inf_name or nics')
return False
if bond_exist(inf_name):
logger.info('create_bonding_inf: %s has been exist' % inf_name)
return False
commands = 'nmcli connection add type bond con-name ' + inf_name + ' ifname ' + inf_name + \
' mode balance-rr 1>/dev/null 2>/dev/null'
ret = os.system(commands)
if ret:
logger.info('create_bonding_inf: %s fail' % commands)
return False
logger.info('create_bonding_inf: create bonding: %s success' % inf_name)
for nic in nics:
if port_in_brs(nic):
logger.info('create_bonding_inf: port %s is a ovs port' % nic)
continue
if port_in_bond(inf_name, nic):
logger.info('create_bonding_inf: port %s is a %s member' % (nic, inf_name))
continue
if port_in_bonds(nic):
logger.info('create_bonding_inf: port %s is a %s member' % (nic, inf_name))
continue
nic_dev_file = netdev_files + '/ifcfg-' + nic
fp = open(nic_dev_file, 'w')
fp.writelines('TYPE=Ethernet\nONBOOT=yes\nBOOTPROTO=none\n')
fp.writelines('DEVICE=%s\nMASTER=%s\nSLAVE=yes' % (nic, inf_name))
fp.close()
logger.info('create_bonding_inf: add port %s to bonding: %s member success' % (nic, inf_name))
def destroy_bonding(bond_name):
if len(bond_name) == 0:
logger.info('destroy_bonding: invalid inf_name %s' % bond_name)
return False
if not bond_exist(bond_name):
logger.info('destroy_bonding: %s is not exist' % bond_name)
return False
# bonding maybe join bridge, MUST leave bridge first
if port_in_brs(bond_name):
logger.info('destroy_bonding: %s has join in bridge, couldnot destroy' % bond_name)
return False
slave_nics = get_bonding_inf_nics(bond_name)
leave_devs_from_bonding(bond_name, slave_nics)
commands = 'nmcli c delete %s 1>/dev/null 2>/dev/null' % (bond_name)
os.system(commands)
bond_file = netdev_files + '/ifcfg-' + bond_name
commands = 'rm -f %s 2>/dev/null' % bond_name
os.system(commands)
logger.info('delete_bonding: delete bonding: %s success:' % bond_name)
return True
def join_devs2_bonding(inf_name, nics):
for nic in nics:
if port_in_bond(inf_name, nic):
logger.info('join_devs2_bonding: port %s is a %s member' % (nic, inf_name))
continue
nic_dev_file = netdev_files + '/ifcfg-' + nic
fp = open(nic_dev_file, 'w')
fp.writelines('TYPE=Ethernet\nONBOOT=yes\nBOOTPROTO=none\n')
fp.writelines('DEVICE=%s\nMASTER=%s\nSLAVE=yes' % (nic, inf_name))
fp.close()
logger.info('join_devs2_bonding: add port %s to bond: %s member success' % (nic, inf_name))
def leave_devs_from_bonding(inf_name, nics):
if not len(nics):
return
for nic in nics:
if not port_in_bond(inf_name, nic):
logger.info('leave_devs_from_bonding: port %s is not bond:%s member' % (nic, inf_name))
continue
nic_dev_file = netdev_files + '/ifcfg-' + nic
if os.path.exists(nic_dev_file):
fp = open(nic_dev_file, 'r')
txt = fp.read()
fp.close()
lines = txt.split('\n')
fp = open(nic_dev_file, 'w')
for line in lines:
if 'MASTER' in line or 'SLAVE' in line:
continue
fp.write(line)
fp.write('\n')
fp.close()
logger.info('leave_devs2_bonding: delete port %s from bond: %s member success' % (nic, inf_name))
def get_bonding_inf_ip(inf_name):
return get_ip_address(inf_name)
def set_bonding_inf_ip(ip, mask, inf_name):
ip_con_file = netdev_files + '/ifcfg-' + inf_name
if not bond_exist(inf_name):
logger.info('set_bonding_inf_ip: bonding inf %s is not exist' % bond_name)
return False
if valid_ip(ip) and valid_mask(mask):
fp = open(ip_con_file, 'w')
fp.writelines('TYPE=Bond\nONBOOT=yes\nBOOTPROTO=static\n')
fp.writelines('DEVICE=%s\nBONDING_MASTER=yes\n' % (inf_name))
fp.writelines('IPADDR=%s\nNETMASK=%s' % (ip, mask))
logger.info('set_bonding_inf_ip: set ip %s, mask %s success ' % (ip, mask))
fp.close()
return True
else:
logger.info('set_bonding_inf_ip: invalid ip %s, mask %s, gw %s ' % (ip, mask))
return False
def set_bonding_inf_ip_gw(ip, mask, gw, inf_name):
ip_con_file = netdev_files + '/ifcfg-' + inf_name
if not bond_exist(inf_name):
logger.info('set_bonding_inf_ip_gw: bonding inf %s is not exist' % bond_name)
return False
if valid_ip(ip) and valid_mask(mask) and valid_ip(gw):
fp = open(ip_con_file, 'w')
fp.writelines('TYPE=Bond\nONBOOT=yes\nBOOTPROTO=static\n')
fp.writelines('DEVICE=%s\nBONDING_MASTER=yes\n' % (inf_name))
fp.writelines('IPADDR=%s\nNETMASK=%sGATEWAY=%s' % (ip, mask, gw))
logger.info('set_bonding_inf_ip_gw: set ip %s, mask %s, gw %ss success ' % (ip, mask, gw))
fp.close()
return True
else:
logger.info('set_bonding_inf_ip_gw: invalid ip %s, mask %s, gw %s ' % (ip, mask, gw))
return False
def unset_bonding_inf_ip(ip, mask, inf_name):
unset_ip_config(ip, mask, inf_name)
def unset_bonding_inf_gw(gw, inf_name):
unset_gw_config(gw, inf_name)
def get_bonding_inf_ipmask(inf_name):
return get_net_mask(inf_name)
def get_bonding_inf_state(inf_name):
cmd = 'ethtool ' + inf_name
(status, output) = commands.getstatusoutput(cmd)
if status == 0:
return LINK_STATE_UP
else:
return LINK_STATE_DOWN
def get_bonding_inf_gw(inf_name):
return get_gateway(inf_name)
def get_bonding_inf_nics(inf_name):
slave_nics = []
eth_dev = get_phy_eth_dev_list()
for dev in eth_dev:
bond = get_phy_eth_dev_bond(dev)
if len(bond) and inf_name == bond:
slave_nics.append(dev)
return slave_nics
def port_in_bond(bond_name, port):
if not bond_exist(bond_name):
logger.info('port_in_bond: bond_name %s isnot exist' % bond_name)
nic_dev_file = netdev_files + '/ifcfg-' + port
if os.path.exists(nic_dev_file):
master_set = False
slave_set = False
fp = open(nic_dev_file, 'r')
txt = fp.read()
fp.close()
lines = txt.split('\n')
for line in lines:
if 'MASTER' in line and len(line) > len('MASTER=') and bond_name in line:
master_set = True
if 'SLAVE' in line and 'yes' in line:
slave_set = True
if master_set and slave_set:
return True
else:
return False
def get_bond_of_port(port):
bond_name = ''
nic_dev_file = netdev_files + '/ifcfg-' + port
if os.path.exists(nic_dev_file):
master_set = False
slave_set = False
fp = open(nic_dev_file, 'r')
txt = fp.read()
fp.close()
lines = txt.split('\n')
for line in lines:
if 'MASTER' in line and len(line) > len('MASTER=') and 'BONDING_MASTER' not in line:
master_set = True
bond_name = line.strip()
bond_name = bond_name[7:len(bond_name)]
if 'SLAVE' in line and 'yes' in line:
slave_set = True
if master_set and slave_set:
return bond_name
else:
return bond_name
def port_in_bonds(port):
nic_dev_file = netdev_files + '/ifcfg-' + port
if os.path.exists(nic_dev_file):
master_set = False
slave_set = False
fp = open(nic_dev_file, 'r')
txt = fp.read()
fp.close()
lines = txt.split('\n')
for line in lines:
if 'MASTER' in line and len(line) > len('MASTER=') and 'BONDING_MASTER' not in line:
master_set = True
if 'SLAVE' in line and 'yes' in line:
slave_set = True
if master_set and slave_set:
return True
else:
return False
def bond_exist(bond_name):
bond_inf_file = netdev_files + '/ifcfg-' + bond_name
if os.path.exists(bond_inf_file):
return True
else:
return False
# physical eth device
def get_phy_eth_dev_info_list():
dev_info_list = {}
eth_dev = get_phy_eth_dev_list()
for dev in eth_dev:
ip = get_phy_eth_dev_ip(dev)
mask = get_phy_eth_dev_ipmask(dev)
state = get_phy_eth_dev_state(dev)
bond = get_phy_eth_dev_bond(dev)
net = get_phy_eth_dev_network(dev)
dev_info_list[dev] = [ip,mask,state,bond,net]
return dev_info_list
def get_phy_eth_dev_ip(dev_name):
return get_ip_address(dev_name)
def get_phy_eth_dev_ipmask(dev_name):
return get_net_mask(dev_name)
def get_phy_eth_dev_state(dev_name):
cmd = 'ethtool ' + dev_name
(status, output) = commands.getstatusoutput(cmd)
if status == 0:
return LINK_STATE_UP
else:
return LINK_STATE_DOWN
def get_phy_eth_dev_bond(dev_name):
slave = False
bond_name = ''
dev_if_file = netdev_files+'/ifcfg-' + dev_name
if not os.path.exists(dev_if_file):
logger.info('get_phy_eth_dev_bond, invalid dev_name %s' % dev_name)
return bond_name
txt = open(dev_if_file, 'r').read()
lines = txt.split('\n')
for line in lines:
if 'SLAVE' in line:
if 'yes' in line.split('=')[1].strip():
slave = True
if slave:
for line in lines:
if 'MASTER' in line:
bond_name = line.split('=')[1].strip()
return bond_name
def get_phy_eth_dev_network(dev_name):
physnet = ''
bond_name = get_phy_eth_dev_bond(dev_name)
if not len(bond_name):
logger.info('get_phy_eth_dev_network, %s is not bond member' % dev_name)
return physnet
logger.info('get_phy_eth_dev_network, %s is the bond: %s member' % (dev_name, bond_name))
br_name = get_br_of_port(bond_name)
if not len(br_name):
logger.info('get_phy_eth_dev_network, %s is not bridge member' % br_name)
return physnet
logger.info('get_phy_eth_dev_network, %s is the bridge: %s member' % (bond_name, br_name))
bridge_mapping_file = '/etc/neutron/plugins/ml2/openvswitch_agent.ini'
if not os.path.exists(bridge_mapping_file):
logger.info('get_phy_eth_dev_network, %s is not exist' % bridge_mapping_file)
return physnet
commands = 'cat %s | grep bridge_mappings' % bridge_mapping_file
ret = os.popen(commands).readline()
if not len(ret):
logger.info('get_phy_eth_dev_network, no bridge_mapping information in %s ' % bridge_mapping_file)
return physnet
if not br_name in ret:
logger.info('get_phy_eth_dev_network, no bridge_mapping information in %s ' % bridge_mapping_file)
return physnet
mappings = ret.strip()
mappings = mappings[mappings.find('=')+1:len(mappings)]
mappings = mappings.strip()
if ',' in mappings:
mappings = mappings.split(',')
for mapping in mappings:
if br_name in mapping:
mapping = mapping.strip()
physnet = mapping[0:mapping.find(':')]
else:
physnet = mappings[0:mappings.find(':')]
logger.info('get_phy_eth_dev_network, bridge_mapping information: %s ' % physnet)
return physnet
def get_dns_address():
dns_list = []
with open(dns_file, 'r') as f0:
for i in f0:
if i.startswith('nameserver '):
tmp = i.split()
dns_list.append(tmp[1])
return dns_list
def set_dns_address(address):
os.remove(dns_file)
fp = open(dns_file, 'w')
for i in address:
if i != '':
fp.write('nameserver ')
fp.write(i)
fp.write('\n')
return os.system('resolvconf -u &')
def get_bri_list():
lt = []
path_list = os.listdir(netdev_files)
for filename in path_list:
if filename.startswith('ifcfg-'):
txt = open(netdev_files+'/'+filename, 'r').read()
txt = txt.upper()
if 'ONBOOT=NO' in txt or 'ONBOOT="NO"' in txt:
continue
if ('TYPE=BRIDGE' in txt or 'TYPE="BRIDGE"' in txt) \
and 'IPADDR=' in txt:
lt.append(filename[6:])
return lt
def get_bonding_inf_list():
lt = []
path_list = os.listdir(netdev_files)
for filename in path_list:
if filename.startswith('ifcfg-'):
txt = open(netdev_files+'/'+filename, 'r').read()
txt = txt.upper()
if 'BRIDGE' in txt:
continue
if 'TYPE=BOND' in txt or 'TYPE="BOND"' in txt:
lt.append(filename[6:])
return lt
def get_phy_eth_dev_list():
lt = []
path_list = os.listdir(netdev_files)
for filename in path_list:
if filename.startswith('ifcfg-'):
txt = open(netdev_files+'/'+filename, 'r').read()
txt = txt.upper()
if 'BRIDGE' in txt:
continue
if 'TYPE=ETHERNET' in txt or 'TYPE="ETHERNET"' in txt:
lt.append(filename[6:])
return lt
def get_net_list():
lt = []
path_list = os.listdir(netdev_files)
for filename in path_list:
if filename.startswith('ifcfg-'):
txt = open(netdev_files+'/'+filename, 'r').read()
txt = txt.upper()
if 'BRIDGE' in txt:
continue
if 'ONBOOT=NO' in txt or 'ONBOOT="NO"' in txt:
continue
if 'TYPE=ETHERNET' in txt or 'TYPE="ETHERNET"' in txt:
cmd = 'ethtool '+filename[6:]
(status, output) = commands.getstatusoutput(cmd)
if status == 0:
lt.append(filename[6:])
return lt
def get_ip_address(ifname):
ip = ''
ip_con_file = netdev_files + '/ifcfg-' + ifname
if not os.path.exists(ip_con_file):
logger('get_ip_address, invalid devname %s' % dev_name)
return ip
txt = open(netdev_files + '/ifcfg-' + ifname, 'r').read()
lines = txt.split('\n')
for line in lines:
if 'IPADDR' in line and '#' not in line:
ip = line.split('=')[1].strip()
return ip
# def get_ip_address(ifname, logger):
# logger.info('get_ip '+ifname)
# ip = ''
# cmd = "ifconfig " + ifname
# txt = os.popen(cmd).readlines()
# for line in txt:
# if 'inet' in line and 'inet6' not in line:
# ip = line.split()[1].strip()
# return ip
def valid_ip(address):
q = address.split('.')
return len(q) == 4 and len(filter(lambda x: x>=0 and x<=255,
map(int, filter(lambda x: x.isdigit(), q)))) == 4
def valid_mask(mask):
if mask == '0.0.0.0':
return False
mask_num = []
mask_bin = ''
if valid_ip(mask):
mask = mask.split(".")
mask_num = [int(num) for num in mask]
mask_bin = ''
for num in mask_num:
item = bin(num).split('0b')[1]
if len(item) != 8:
zero_num = '0'*(8-len(item))
item = zero_num + item
mask_bin += item
if '01' in mask_bin:
return False
else:
return True
def unset_ip_config(ip, mask, dev):
ip_con_file = netdev_files + '/ifcfg-' + dev
if not os.path.exists(ip_con_file):
logger('unset_ip_config: invalid devname %s' % dev)
return None
fp = open(ip_con_file, 'r')
txt = fp.read()
fp.close()
lines = txt.split('\n')
fp = open(ip_con_file, 'w')
for line in lines:
if 'IPADDR' in line or 'NETMASK' in line:
continue
if 'BOOTPROTO' in line:
line = 'BOOTPROTO=none'
fp.write(line)
fp.write('\n')
logger.info('unset_ip_config: unset inf %s: ip %s, mask %s success ' % (dev, ip, mask))
fp.close()
def unset_gw_config(gw, dev):
ip_con_file = netdev_files + '/ifcfg-' + dev
if not os.path.exists(ip_con_file):
logger('unset_gw_config: invalid devname %s' % dev)
return None
fp = open(ip_con_file, 'r')
txt = fp.read()
fp.close()
lines = txt.split('\n')
fp = open(ip_con_file, 'w')
for line in lines:
if 'GATEWAY' in line:
continue
fp.write(line)
fp.write('\n')
logger.info('unset_gw_config: unset inf %s: gw %s success ' % (dev, gw))
def save_ip_config(ip, mask, gw, dev):
ip_set = False
mask_set = False
gw_set = False
boot_set = False
ip_con_file = netdev_files + '/ifcfg-' + dev
if not os.path.exists(ip_con_file):
logger('save_ip_config: invalid devname', dev)
return None
filename = netdev_files + '/ifcfg-' + dev
fp = open(filename, 'r')
txt = fp.read()
fp.close()
fp = open(filename, 'w+')
lines = txt.split('\n')
for line in lines:
if 'IPADDR' in line:
new_line = 'IPADDR' + '=' + ip
txt = txt.replace(line, new_line)
ip_set = True
if 'GATEWAY' in line:
new_line = 'GATEWAY' + '=' + gw
txt = txt.replace(line, new_line)
gw_set = True
if 'NETMASK' in line:
new_line = 'NETMASK' + '=' + mask
txt = txt.replace(line, new_line)
mask_set = True
if 'BOOTPROTO' in line:
new_line = 'BOOTPROTO' + '=static'
txt = txt.replace(line, new_line)
boot_set = True
if ip_set or mask_set or gw_set or boot_set:
fp.write(txt)
fp.close()
fp = open(filename, 'a+')
if not ip_set:
fp.write('\nIPADDR=%s' % ip)
if not mask_set:
fp.write('\nNETMASK=%s' % mask)
if not gw_set:
fp.write('\nGATEWAY=%s' % gw)
if not boot_set:
fp.write('\nBOOTPROTO=static')
logger.info('save_ip_config: set inf %s: ip %s, mask %s, gw %s success ' % (dev, ip, mask, gw))
fp.close()
def get_net_mask(dev):
mask = ''
ip_con_file = netdev_files + '/ifcfg-' + dev
if not os.path.exists(ip_con_file):
logger('get_net_mask, invalid devname %s' % dev)
return mask
txt = open(netdev_files + '/ifcfg-' + dev, 'r').read()
lines = txt.split('\n')
for line in lines:
if 'NETMASK' in line and '#' not in line:
mask = line.split('=')[1].strip()
return mask
# def get_net_mask(dev):
# msk = ''
# cmd = "ifconfig " + dev
# txt = os.popen(cmd).readlines()
# for line in txt:
# if 'netmask' in line:
# msk = line.split()[3].strip()
# return msk
def get_gateway(dev):
gw = ''
gw_con_file = netdev_files + '/ifcfg-' + dev
if not os.path.exists(gw_con_file):
logger('get_gateway, invalid devname %s' % dev)
return gw
txt = open(netdev_files + '/ifcfg-' + dev, 'r').read()
lines = txt.split('\n')
for line in lines:
if 'GATEWAY' in line and '#' not in line:
gw = line.split('=')[1].strip()
return gw
def bonding_test():
bond_name = 'bond0'
nics=['enp2s0f1']
print 'list physical ethernet device:'
print get_phy_eth_dev_info_list()
print 'list bonding interface:'
print get_bonding_inf_info_list()
print 'create bonding interface:'
create_bonding_inf(bond_name, nics)
leave_devs_from_bonding(bond_name, nics)
join_devs2_bonding(bond_name, nics)
print 'set bonding interface ip mask, gw:'
set_bonding_inf_ip_gw('192.168.1.1', '255.255.255.0', '192.168.1.254', bond_name)
print 'list bonding interface:'
print get_bonding_inf_info_list()
print 'unset bonding interface ip mask, gw:'
unset_bonding_inf_ip('192.168.1.1', '255.255.255.0', bond_name)
unset_bonding_inf_gw('192.168.1.254', bond_name)
print 'list bonding interface:'
print get_bonding_inf_info_list()
print 'delete bonding interface:'
destroy_bonding(bond_name)
print 'list bonding interface:'
print get_bonding_inf_info_list()
def bridge_test():
br_name = 'br-jun'
port = 'enp2s0f1'
print 'create bridge:'
create_br('br-jun')
get_bridge_info()
join_port_to_br(br_name, port)
get_bridge_info()
leave_port_from_br(br_name, port)
get_bridge_info()
create_br_patch(br_name, 'br-int')
get_bridge_info()
delete_br_patch(br_name, 'br-int')
get_bridge_info()
destroy_br('br-jun')
def bonding_bridge_test():
bond_name = 'bond0'
nics=['enp2s0f1']
br_name = 'br-jun'
create_bonding_inf(bond_name, nics)
create_br('br-jun')
get_bridge_info()
join_port_to_br(br_name, bond_name)
get_bridge_info()
# main routinue
if __name__ == '__main__':
#bonding_test()
#bridge_test()
#bonding_bridge_test()
print get_phy_eth_dev_network('enp2s0f1')