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Puppet::Functions.create_function(:ipv6_normalize_dnsmasq_ip_subnets) do
def ipv6_normalize_dnsmasq_ip_subnets(args)
require 'ipaddr'
result = []
args.each do |ip_subnet|
ip_subnet_dup = ip_subnet.dup
begin
if ip_subnet["netmask"]
if IPAddr.new(ip_subnet["netmask"]).ipv6?
prefix = IPAddr.new(ip_subnet["netmask"]).to_i.to_s(2).count("1")
Puppet.debug("Netmask #{ip_subnet["netmask"]} changed to prefix #{prefix}")
ip_subnet_dup["netmask"] = prefix
end
end
rescue IPAddr::AddressFamilyError, IPAddr::Error, IPAddr::InvalidAddressError, IPAddr::InvalidPrefixError => e
# Ignore it
end
begin
if ip_subnet["gateway"]
if IPAddr.new(ip_subnet["gateway"]).ipv6?
# draft-ietf-mif-dhcpv6-route-option-05 was never completed.
# https://datatracker.ietf.org/doc/draft-ietf-mif-dhcpv6-route-option/
# Remove the gateway key:value so that the option:router entry is
# not created in dnsmasq.conf.
ip_subnet_dup.delete("gateway")
end
end
rescue IPAddr::AddressFamilyError, IPAddr::Error, IPAddr::InvalidAddressError, IPAddr::InvalidPrefixError => e
# Ignore it
end
result << ip_subnet_dup
end
return result
end
end
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