def getIpInfo(dev, ipaddrs=None, ipv4_gateway=None):
"""Report IP addresses of a device. if there are multiple primary IP
addresses, report in ipv4addr the one that is in the same subnet of
ipv4_gateway, if it is supplied."""
# TODO: support same logic for ipv6
if ipaddrs is None:
ipaddrs = getIpAddrs()
ipv4addr = ipv4netmask = ''
ipv4addrs = []
ipv6addrs = []
def addr_in_gw_net(address, prefix, ipv4_gw):
addr_net = IPNetwork('{}/{}'.format(address, prefix))
gw_net = IPNetwork('{}/{}'.format(ipv4_gw, prefix))
return addr_net in gw_net
for addr in ipaddrs[dev]:
if addr['scope'] == 'link':
continue
address_cidr = nl_addr.cidr_form(addr) # x.y.z.t/N
if addr['family'] == 'inet': # ipv4
ipv4addrs.append(address_cidr)
if nl_addr.is_primary(addr) and ipv4_gateway and ipv4addr == '':
address, prefix = nl_addr.split(addr)
if addr_in_gw_net(address, prefix, ipv4_gateway):
ipv4addr = address
ipv4netmask = str(IPNetwork(address_cidr).netmask)
else: # ipv6
ipv6addrs.append(address_cidr)
if ipv4addrs and ipv4addr == '':
# If we didn't find an address in the gateway subnet (which is
# legal if there is another route that takes us to the gateway) we
# choose to report the first address
ipv4addr = ipv4addrs[0].split('/')[0]
ipv4netmask = str(IPNetwork(ipv4addrs[0]).netmask)
return ipv4addr, ipv4netmask, ipv4addrs, ipv6addrs
def getIpInfo(dev, ipaddrs=None, ipv4_gateway=None):
"""Report IP addresses of a device. if there are multiple primary IP
addresses, report in ipv4addr the one that is in the same subnet of
ipv4_gateway, if it is supplied."""
# TODO: support same logic for ipv6
if ipaddrs is None:
ipaddrs = getIpAddrs()
ipv4addr = ipv4netmask = ''
ipv4addrs = []
ipv6addrs = []
def addr_in_gw_net(address, prefix, ipv4_gw):
addr_net = IPNetwork('{}/{}'.format(address, prefix))
gw_net = IPNetwork('{}/{}'.format(ipv4_gw, prefix))
return addr_net in gw_net
for addr in ipaddrs[dev]:
if addr['scope'] == 'link':
continue
address_cidr = nl_addr.cidr_form(addr) # x.y.z.t/N
if addr['family'] == 'inet': # ipv4
ipv4addrs.append(address_cidr)
if nl_addr.is_primary(addr) and ipv4_gateway and ipv4addr == '':
address, prefix = nl_addr.split(addr)
if addr_in_gw_net(address, prefix, ipv4_gateway):
ipv4addr = address
ipv4netmask = str(IPNetwork(address_cidr).netmask)
else: # ipv6
ipv6addrs.append(address_cidr)
if ipv4addrs and ipv4addr == '':
# If we didn't find an address in the gateway subnet (which is
# legal if there is another route that takes us to the gateway) we
# choose to report the first address
ipv4addr = ipv4addrs[0].split('/')[0]
ipv4netmask = str(IPNetwork(ipv4addrs[0]).netmask)
return ipv4addr, ipv4netmask, ipv4addrs, ipv6addrs