From 88df88a19674ccc0017836941b8ee32eaadf19fb Mon Sep 17 00:00:00 2001 From: Stuart Mackie Date: Thu, 23 Mar 2017 06:19:54 -0700 Subject: Deleted charms with wrong license. Will source them differently in future. Change-Id: I0fc99ea03c6b6ca4701e63793cb2be60e56c7588 Signed-off-by: Stuart Mackie --- .../hooks/charmhelpers/contrib/network/ip.py | 456 --------------------- 1 file changed, 456 deletions(-) delete mode 100644 charms/trusty/contrail-control/hooks/charmhelpers/contrib/network/ip.py (limited to 'charms/trusty/contrail-control/hooks/charmhelpers/contrib/network/ip.py') diff --git a/charms/trusty/contrail-control/hooks/charmhelpers/contrib/network/ip.py b/charms/trusty/contrail-control/hooks/charmhelpers/contrib/network/ip.py deleted file mode 100644 index 7f3b66b..0000000 --- a/charms/trusty/contrail-control/hooks/charmhelpers/contrib/network/ip.py +++ /dev/null @@ -1,456 +0,0 @@ -# Copyright 2014-2015 Canonical Limited. -# -# This file is part of charm-helpers. -# -# charm-helpers is free software: you can redistribute it and/or modify -# it under the terms of the GNU Lesser General Public License version 3 as -# published by the Free Software Foundation. -# -# charm-helpers is distributed in the hope that it will be useful, -# but WITHOUT ANY WARRANTY; without even the implied warranty of -# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -# GNU Lesser General Public License for more details. -# -# You should have received a copy of the GNU Lesser General Public License -# along with charm-helpers. If not, see . - -import glob -import re -import subprocess -import six -import socket - -from functools import partial - -from charmhelpers.core.hookenv import unit_get -from charmhelpers.fetch import apt_install, apt_update -from charmhelpers.core.hookenv import ( - log, - WARNING, -) - -try: - import netifaces -except ImportError: - apt_update(fatal=True) - apt_install('python-netifaces', fatal=True) - import netifaces - -try: - import netaddr -except ImportError: - apt_update(fatal=True) - apt_install('python-netaddr', fatal=True) - import netaddr - - -def _validate_cidr(network): - try: - netaddr.IPNetwork(network) - except (netaddr.core.AddrFormatError, ValueError): - raise ValueError("Network (%s) is not in CIDR presentation format" % - network) - - -def no_ip_found_error_out(network): - errmsg = ("No IP address found in network: %s" % network) - raise ValueError(errmsg) - - -def get_address_in_network(network, fallback=None, fatal=False): - """Get an IPv4 or IPv6 address within the network from the host. - - :param network (str): CIDR presentation format. For example, - '192.168.1.0/24'. - :param fallback (str): If no address is found, return fallback. - :param fatal (boolean): If no address is found, fallback is not - set and fatal is True then exit(1). - """ - if network is None: - if fallback is not None: - return fallback - - if fatal: - no_ip_found_error_out(network) - else: - return None - - _validate_cidr(network) - network = netaddr.IPNetwork(network) - for iface in netifaces.interfaces(): - addresses = netifaces.ifaddresses(iface) - if network.version == 4 and netifaces.AF_INET in addresses: - addr = addresses[netifaces.AF_INET][0]['addr'] - netmask = addresses[netifaces.AF_INET][0]['netmask'] - cidr = netaddr.IPNetwork("%s/%s" % (addr, netmask)) - if cidr in network: - return str(cidr.ip) - - if network.version == 6 and netifaces.AF_INET6 in addresses: - for addr in addresses[netifaces.AF_INET6]: - if not addr['addr'].startswith('fe80'): - cidr = netaddr.IPNetwork("%s/%s" % (addr['addr'], - addr['netmask'])) - if cidr in network: - return str(cidr.ip) - - if fallback is not None: - return fallback - - if fatal: - no_ip_found_error_out(network) - - return None - - -def is_ipv6(address): - """Determine whether provided address is IPv6 or not.""" - try: - address = netaddr.IPAddress(address) - except netaddr.AddrFormatError: - # probably a hostname - so not an address at all! - return False - - return address.version == 6 - - -def is_address_in_network(network, address): - """ - Determine whether the provided address is within a network range. - - :param network (str): CIDR presentation format. For example, - '192.168.1.0/24'. - :param address: An individual IPv4 or IPv6 address without a net - mask or subnet prefix. For example, '192.168.1.1'. - :returns boolean: Flag indicating whether address is in network. - """ - try: - network = netaddr.IPNetwork(network) - except (netaddr.core.AddrFormatError, ValueError): - raise ValueError("Network (%s) is not in CIDR presentation format" % - network) - - try: - address = netaddr.IPAddress(address) - except (netaddr.core.AddrFormatError, ValueError): - raise ValueError("Address (%s) is not in correct presentation format" % - address) - - if address in network: - return True - else: - return False - - -def _get_for_address(address, key): - """Retrieve an attribute of or the physical interface that - the IP address provided could be bound to. - - :param address (str): An individual IPv4 or IPv6 address without a net - mask or subnet prefix. For example, '192.168.1.1'. - :param key: 'iface' for the physical interface name or an attribute - of the configured interface, for example 'netmask'. - :returns str: Requested attribute or None if address is not bindable. - """ - address = netaddr.IPAddress(address) - for iface in netifaces.interfaces(): - addresses = netifaces.ifaddresses(iface) - if address.version == 4 and netifaces.AF_INET in addresses: - addr = addresses[netifaces.AF_INET][0]['addr'] - netmask = addresses[netifaces.AF_INET][0]['netmask'] - network = netaddr.IPNetwork("%s/%s" % (addr, netmask)) - cidr = network.cidr - if address in cidr: - if key == 'iface': - return iface - else: - return addresses[netifaces.AF_INET][0][key] - - if address.version == 6 and netifaces.AF_INET6 in addresses: - for addr in addresses[netifaces.AF_INET6]: - if not addr['addr'].startswith('fe80'): - network = netaddr.IPNetwork("%s/%s" % (addr['addr'], - addr['netmask'])) - cidr = network.cidr - if address in cidr: - if key == 'iface': - return iface - elif key == 'netmask' and cidr: - return str(cidr).split('/')[1] - else: - return addr[key] - - return None - - -get_iface_for_address = partial(_get_for_address, key='iface') - - -get_netmask_for_address = partial(_get_for_address, key='netmask') - - -def format_ipv6_addr(address): - """If address is IPv6, wrap it in '[]' otherwise return None. - - This is required by most configuration files when specifying IPv6 - addresses. - """ - if is_ipv6(address): - return "[%s]" % address - - return None - - -def get_iface_addr(iface='eth0', inet_type='AF_INET', inc_aliases=False, - fatal=True, exc_list=None): - """Return the assigned IP address for a given interface, if any.""" - # Extract nic if passed /dev/ethX - if '/' in iface: - iface = iface.split('/')[-1] - - if not exc_list: - exc_list = [] - - try: - inet_num = getattr(netifaces, inet_type) - except AttributeError: - raise Exception("Unknown inet type '%s'" % str(inet_type)) - - interfaces = netifaces.interfaces() - if inc_aliases: - ifaces = [] - for _iface in interfaces: - if iface == _iface or _iface.split(':')[0] == iface: - ifaces.append(_iface) - - if fatal and not ifaces: - raise Exception("Invalid interface '%s'" % iface) - - ifaces.sort() - else: - if iface not in interfaces: - if fatal: - raise Exception("Interface '%s' not found " % (iface)) - else: - return [] - - else: - ifaces = [iface] - - addresses = [] - for netiface in ifaces: - net_info = netifaces.ifaddresses(netiface) - if inet_num in net_info: - for entry in net_info[inet_num]: - if 'addr' in entry and entry['addr'] not in exc_list: - addresses.append(entry['addr']) - - if fatal and not addresses: - raise Exception("Interface '%s' doesn't have any %s addresses." % - (iface, inet_type)) - - return sorted(addresses) - - -get_ipv4_addr = partial(get_iface_addr, inet_type='AF_INET') - - -def get_iface_from_addr(addr): - """Work out on which interface the provided address is configured.""" - for iface in netifaces.interfaces(): - addresses = netifaces.ifaddresses(iface) - for inet_type in addresses: - for _addr in addresses[inet_type]: - _addr = _addr['addr'] - # link local - ll_key = re.compile("(.+)%.*") - raw = re.match(ll_key, _addr) - if raw: - _addr = raw.group(1) - - if _addr == addr: - log("Address '%s' is configured on iface '%s'" % - (addr, iface)) - return iface - - msg = "Unable to infer net iface on which '%s' is configured" % (addr) - raise Exception(msg) - - -def sniff_iface(f): - """Ensure decorated function is called with a value for iface. - - If no iface provided, inject net iface inferred from unit private address. - """ - def iface_sniffer(*args, **kwargs): - if not kwargs.get('iface', None): - kwargs['iface'] = get_iface_from_addr(unit_get('private-address')) - - return f(*args, **kwargs) - - return iface_sniffer - - -@sniff_iface -def get_ipv6_addr(iface=None, inc_aliases=False, fatal=True, exc_list=None, - dynamic_only=True): - """Get assigned IPv6 address for a given interface. - - Returns list of addresses found. If no address found, returns empty list. - - If iface is None, we infer the current primary interface by doing a reverse - lookup on the unit private-address. - - We currently only support scope global IPv6 addresses i.e. non-temporary - addresses. If no global IPv6 address is found, return the first one found - in the ipv6 address list. - """ - addresses = get_iface_addr(iface=iface, inet_type='AF_INET6', - inc_aliases=inc_aliases, fatal=fatal, - exc_list=exc_list) - - if addresses: - global_addrs = [] - for addr in addresses: - key_scope_link_local = re.compile("^fe80::..(.+)%(.+)") - m = re.match(key_scope_link_local, addr) - if m: - eui_64_mac = m.group(1) - iface = m.group(2) - else: - global_addrs.append(addr) - - if global_addrs: - # Make sure any found global addresses are not temporary - cmd = ['ip', 'addr', 'show', iface] - out = subprocess.check_output(cmd).decode('UTF-8') - if dynamic_only: - key = re.compile("inet6 (.+)/[0-9]+ scope global dynamic.*") - else: - key = re.compile("inet6 (.+)/[0-9]+ scope global.*") - - addrs = [] - for line in out.split('\n'): - line = line.strip() - m = re.match(key, line) - if m and 'temporary' not in line: - # Return the first valid address we find - for addr in global_addrs: - if m.group(1) == addr: - if not dynamic_only or \ - m.group(1).endswith(eui_64_mac): - addrs.append(addr) - - if addrs: - return addrs - - if fatal: - raise Exception("Interface '%s' does not have a scope global " - "non-temporary ipv6 address." % iface) - - return [] - - -def get_bridges(vnic_dir='/sys/devices/virtual/net'): - """Return a list of bridges on the system.""" - b_regex = "%s/*/bridge" % vnic_dir - return [x.replace(vnic_dir, '').split('/')[1] for x in glob.glob(b_regex)] - - -def get_bridge_nics(bridge, vnic_dir='/sys/devices/virtual/net'): - """Return a list of nics comprising a given bridge on the system.""" - brif_regex = "%s/%s/brif/*" % (vnic_dir, bridge) - return [x.split('/')[-1] for x in glob.glob(brif_regex)] - - -def is_bridge_member(nic): - """Check if a given nic is a member of a bridge.""" - for bridge in get_bridges(): - if nic in get_bridge_nics(bridge): - return True - - return False - - -def is_ip(address): - """ - Returns True if address is a valid IP address. - """ - try: - # Test to see if already an IPv4 address - socket.inet_aton(address) - return True - except socket.error: - return False - - -def ns_query(address): - try: - import dns.resolver - except ImportError: - apt_install('python-dnspython') - import dns.resolver - - if isinstance(address, dns.name.Name): - rtype = 'PTR' - elif isinstance(address, six.string_types): - rtype = 'A' - else: - return None - - answers = dns.resolver.query(address, rtype) - if answers: - return str(answers[0]) - return None - - -def get_host_ip(hostname, fallback=None): - """ - Resolves the IP for a given hostname, or returns - the input if it is already an IP. - """ - if is_ip(hostname): - return hostname - - ip_addr = ns_query(hostname) - if not ip_addr: - try: - ip_addr = socket.gethostbyname(hostname) - except: - log("Failed to resolve hostname '%s'" % (hostname), - level=WARNING) - return fallback - return ip_addr - - -def get_hostname(address, fqdn=True): - """ - Resolves hostname for given IP, or returns the input - if it is already a hostname. - """ - if is_ip(address): - try: - import dns.reversename - except ImportError: - apt_install("python-dnspython") - import dns.reversename - - rev = dns.reversename.from_address(address) - result = ns_query(rev) - - if not result: - try: - result = socket.gethostbyaddr(address)[0] - except: - return None - else: - result = address - - if fqdn: - # strip trailing . - if result.endswith('.'): - return result[:-1] - else: - return result - else: - return result.split('.')[0] -- cgit 1.2.3-korg