Skip to content

A
ansible
Commit 7950dd01 by Ahmad Khayyat
Options

Recognize interface aliases in network facts, and add IP facts

parent 05a128c2
Showing with 80 additions and 85 deletions
library/setup
...@@ -433,93 +433,88 @@ class LinuxNetwork(Network): ...@@ -433,93 +433,88 @@ class LinuxNetwork(Network):
Network.__init__(self) Network.__init__(self)
def populate(self): def populate(self):
self.facts['interfaces'] = self.get_interfaces() interfaces, ips = self.parse_ip_addr()
self.get_interface_facts()
self.get_ipv4_facts() self.facts['interfaces'] = interfaces.keys()
self.get_ipv6_facts() for iface in interfaces:
self.facts[iface] = interfaces[iface]
self.facts['all_ipv4_addresses'] = ips['all_ipv4']
self.facts['all_ipv6_addresses'] = ips['all_ipv6']
self.facts['ipv4_address'] = ips['ipv4']
self.facts['ipv6_address'] = ips['ipv6']
return self.facts return self.facts
# get list of interfaces
def get_interfaces(self): def parse_ip_addr(self):
names = [] interfaces = {}
data = get_file_content('/proc/net/dev') ips = {'all_ipv4': [], 'all_ipv6': [], 'ipv4': None, 'ipv6': None}
# Format of /proc/net/dev is:
# Inter-| Receive ... output = subprocess.Popen(['ip','addr'], stdout=subprocess.PIPE).communicate()[0]
# face |bytes ... for line in output.split('\n'):
# lo: 595059 if line:
for line in data.split('\n'): words = line.split()
if ':' in line: if not line.startswith(' '):
names.append(line.split(':')[0].strip()) device = words[1][0:-1]
return names mtu = words[4]
elif words[0].startswith('link/'):
def get_iface_hwaddr(self, iface): iface_type = words[0].split('/')[1]
data = get_file_content('/sys/class/net/%s/address' % iface) if iface_type == 'void':
if data is None: macaddress = 'unknown'
return 'unknown' else:
else: macaddress = words[1]
return data.strip() elif words[0] == 'inet':
address, netmask_length = words[1].split('/')
def get_interface_facts(self): address_bin = struct.unpack('!L', socket.inet_aton(address))[0]
for iface in self.facts['interfaces']:
if iface not in self.facts: netmask_bin = (1<<32) - (1<<32>>int(netmask_length))
self.facts[iface] = {} netmask = socket.inet_ntoa(struct.pack('!L', netmask_bin))
self.facts[iface] = { 'macaddress': self.get_iface_hwaddr(iface) }
if os.path.exists('/sys/class/net/%s/mtu' % iface): network = socket.inet_ntoa(struct.pack('!L', address_bin & netmask_bin))
mtu = get_file_content('/sys/class/net/%s/mtu' % iface)
self.facts[iface]['mtu'] = mtu.strip() iface = words[-1]
# If an interface has multiple IPv4 addresses, make up an
def get_ipv4_facts(self): # interface name for each address
for iface in self.facts['interfaces']: if iface in interfaces:
# This is lame, but there doesn't appear to be a good way i = 0
# to get all addresses for both IPv4 and IPv6. while '{0}:{1}'.format(iface, i) in interfaces:
cmd = subprocess.Popen("env LANG=\"\" /sbin/ifconfig %s" % iface, shell=True, i += 1
stdout=subprocess.PIPE, stderr=subprocess.PIPE) iface = '{0}:{1}'.format(iface, i)
out, err = cmd.communicate()
for line in out.split('\n'): interfaces[iface] = {}
is_ipv4 = False interfaces[iface]['macaddress'] = macaddress
data = line.split() interfaces[iface]['mtu'] = mtu
if 'inet addr' in line: interfaces[iface]['device'] = device
if 'ipv4' not in self.facts[iface]: interfaces[iface]['ipv4'] = {'address': address,
self.facts[iface]['ipv4'] = {} 'netmask': netmask,
is_ipv4 = True 'network': network}
self.facts[iface]['ipv4'] = { 'address': data[1].split(':')[1],
'netmask': data[-1].split(':')[1] } ips['all_ipv4'].append(address)
# Slightly different output in net-tools-1.60-134.20120127git if not ips['ipv4'] or ips['ipv4'].startswith('127'):
# Looks like ips['ipv4'] = address
# inet 192.168.1.2 netmask 255.255.255.0 broadcast 192.168.1.255
elif 'inet ' in line: elif words[0] == 'inet6':
is_ipv4 = True address, prefix = words[1].split('/')
if 'ipv4' not in self.facts[iface]: scope = words[3]
self.facts[iface]['ipv4'] = {}
self.facts[iface]['ipv4'] = { 'address': data[1], iface = device
'netmask': data[3] } if iface not in interfaces:
if is_ipv4: interfaces[iface] = {}
ip = struct.unpack("!L", socket.inet_aton(self.facts[iface]['ipv4']['address']))[0] interfaces[iface]['macaddress'] = macaddress
mask = struct.unpack("!L", socket.inet_aton(self.facts[iface]['ipv4']['netmask']))[0] interfaces[iface]['mtu'] = mtu
self.facts[iface]['ipv4']['network'] = socket.inet_ntoa(struct.pack("!L", ip & mask)) interfaces[iface]['device'] = device
if 'ipv6' not in interfaces[iface]:
def get_ipv6_facts(self): interfaces[iface]['ipv6'] = []
if not socket.has_ipv6: interfaces[iface]['ipv6'].append( {
return 'address': address,
data = get_file_content('/proc/net/if_inet6') 'prefix': prefix,
if data is None: 'scope': scope} )
return
for line in data.split('\n'): ips['all_ipv6'].append(address)
l = line.split() if not ips['ipv6'] or ips['ipv6'] == '::1':
iface = l[5] ips['ipv6'] = address
if 'ipv6' not in self.facts[iface]:
self.facts[iface]['ipv6'] = [] return interfaces, ips
scope = l[3]
if Network.IPV6_SCOPE.has_key(l[3]):
scope = Network.IPV6_SCOPE[l[3]]
prefix = int(l[2], 16)
str_addr = ':'.join( [ l[0][i:i+4] for i in range(0, len(l[0]), 4) ] )
# Normalize ipv6 address from format in /proc/net/if_inet6
addr = socket.inet_ntop(socket.AF_INET6,
socket.inet_pton(socket.AF_INET6, str_addr))
self.facts[iface]['ipv6'].append( { 'address': addr,
'prefix': prefix,
'scope': scope } )
class Virtual(Facts): class Virtual(Facts):
""" """
......
Markdown is supported
0% or
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment