Merge branch 'network-facts' of https://github.com/akhayyat/ansible into devel
This commit is contained in:
Michael DeHaan
commit
08ce3692b2
1 changed files with 77 additions and 81 deletions
152
library/setup
152
library/setup
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@ -426,6 +426,8 @@ class LinuxNetwork(Network):
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This is a Linux-specific subclass of Network. It defines
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- interfaces (a list of interface names)
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- interface_<name> dictionary of ipv4, ipv6, and mac address information.
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- all_ipv4_addresses and all_ipv6_addresses: lists of all configured addresses.
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- ipv4_address and ipv6_address: the first non-local address for each family.
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"""
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platform = 'Linux'
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@ -433,94 +435,88 @@ class LinuxNetwork(Network):
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Network.__init__(self)
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def populate(self):
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self.facts['interfaces'] = self.get_interfaces()
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self.get_interface_facts()
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self.get_ipv4_facts()
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self.get_ipv6_facts()
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interfaces, ips = self.parse_ip_addr()
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self.facts['interfaces'] = interfaces.keys()
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for iface in interfaces:
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self.facts[iface] = interfaces[iface]
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for key in ips:
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self.facts[key] = ips[key]
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return self.facts
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# get list of interfaces
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def get_interfaces(self):
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names = []
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data = get_file_content('/proc/net/dev')
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# Format of /proc/net/dev is:
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# Inter-| Receive ...
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# face |bytes ...
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# lo: 595059
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for line in data.split('\n'):
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if ':' in line:
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names.append(line.split(':')[0].strip())
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return names
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def parse_ip_addr(self):
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interfaces = {}
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ips = {'all_ipv4_addresses': [], 'all_ipv6_addresses': [],
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'ipv4_address': None, 'ipv6_address': None}
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def get_iface_hwaddr(self, iface):
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data = get_file_content('/sys/class/net/%s/address' % iface)
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if data is None:
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return 'unknown'
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output = subprocess.Popen(['ip','addr'], stdout=subprocess.PIPE).communicate()[0]
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for line in output.split('\n'):
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if line:
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words = line.split()
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if not line.startswith(' '):
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device = words[1][0:-1]
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mtu = words[4]
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elif words[0].startswith('link/'):
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iface_type = words[0].split('/')[1]
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if iface_type == 'void':
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macaddress = 'unknown'
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else:
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return data.strip()
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macaddress = words[1]
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elif words[0] == 'inet':
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address, netmask_length = words[1].split('/')
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address_bin = struct.unpack('!L', socket.inet_aton(address))[0]
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def get_interface_facts(self):
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for iface in self.facts['interfaces']:
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if iface not in self.facts:
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self.facts[iface] = {}
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self.facts[iface] = { 'macaddress': self.get_iface_hwaddr(iface) }
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if os.path.exists('/sys/class/net/%s/mtu' % iface):
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mtu = get_file_content('/sys/class/net/%s/mtu' % iface)
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self.facts[iface]['mtu'] = mtu.strip()
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netmask_bin = (1<<32) - (1<<32>>int(netmask_length))
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netmask = socket.inet_ntoa(struct.pack('!L', netmask_bin))
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def get_ipv4_facts(self):
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for iface in self.facts['interfaces']:
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# This is lame, but there doesn't appear to be a good way
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# to get all addresses for both IPv4 and IPv6.
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cmd = subprocess.Popen("env LANG=\"\" /sbin/ifconfig %s" % iface, shell=True,
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stdout=subprocess.PIPE, stderr=subprocess.PIPE)
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out, err = cmd.communicate()
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for line in out.split('\n'):
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is_ipv4 = False
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data = line.split()
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if 'inet addr' in line:
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if 'ipv4' not in self.facts[iface]:
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self.facts[iface]['ipv4'] = {}
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is_ipv4 = True
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self.facts[iface]['ipv4'] = { 'address': data[1].split(':')[1],
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'netmask': data[-1].split(':')[1] }
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# Slightly different output in net-tools-1.60-134.20120127git
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# Looks like
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# inet 192.168.1.2 netmask 255.255.255.0 broadcast 192.168.1.255
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elif 'inet ' in line:
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is_ipv4 = True
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if 'ipv4' not in self.facts[iface]:
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self.facts[iface]['ipv4'] = {}
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self.facts[iface]['ipv4'] = { 'address': data[1],
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'netmask': data[3] }
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if is_ipv4:
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ip = struct.unpack("!L", socket.inet_aton(self.facts[iface]['ipv4']['address']))[0]
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mask = struct.unpack("!L", socket.inet_aton(self.facts[iface]['ipv4']['netmask']))[0]
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self.facts[iface]['ipv4']['network'] = socket.inet_ntoa(struct.pack("!L", ip & mask))
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network = socket.inet_ntoa(struct.pack('!L', address_bin & netmask_bin))
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def get_ipv6_facts(self):
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if not socket.has_ipv6:
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return
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data = get_file_content('/proc/net/if_inet6')
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if data is None:
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return
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for line in data.split('\n'):
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l = line.split()
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iface = l[5]
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if 'ipv6' not in self.facts[iface]:
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self.facts[iface]['ipv6'] = []
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scope = l[3]
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if Network.IPV6_SCOPE.has_key(l[3]):
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scope = Network.IPV6_SCOPE[l[3]]
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prefix = int(l[2], 16)
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str_addr = ':'.join( [ l[0][i:i+4] for i in range(0, len(l[0]), 4) ] )
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# Normalize ipv6 address from format in /proc/net/if_inet6
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addr = socket.inet_ntop(socket.AF_INET6,
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socket.inet_pton(socket.AF_INET6, str_addr))
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self.facts[iface]['ipv6'].append( { 'address': addr,
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iface = words[-1]
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# If an interface has multiple IPv4 addresses, make up an
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# interface name for each address
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if iface in interfaces:
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i = 0
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while '{0}:{1}'.format(iface, i) in interfaces:
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i += 1
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iface = '{0}:{1}'.format(iface, i)
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interfaces[iface] = {}
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interfaces[iface]['macaddress'] = macaddress
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interfaces[iface]['mtu'] = mtu
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interfaces[iface]['device'] = device
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interfaces[iface]['ipv4'] = {'address': address,
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'netmask': netmask,
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'network': network}
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ips['all_ipv4_addresses'].append(address)
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if not ips['ipv4_address'] or ips['ipv4_address'].startswith('127'):
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ips['ipv4_address'] = address
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elif words[0] == 'inet6':
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address, prefix = words[1].split('/')
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scope = words[3]
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iface = device
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if iface not in interfaces:
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interfaces[iface] = {}
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interfaces[iface]['macaddress'] = macaddress
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interfaces[iface]['mtu'] = mtu
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interfaces[iface]['device'] = device
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if 'ipv6' not in interfaces[iface]:
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interfaces[iface]['ipv6'] = []
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interfaces[iface]['ipv6'].append( {
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'address': address,
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'prefix': prefix,
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'scope': scope} )
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ips['all_ipv6_addresses'].append(address)
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if not ips['ipv6_address'] or ips['ipv6_address'] == '::1':
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ips['ipv6_address'] = address
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return interfaces, ips
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class Virtual(Facts):
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"""
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This is a generic Virtual subclass of Facts. This should be further
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