Module: IpAddr
- Included in:
- SecurityGroupEgressAllProtocolsRule, SecurityGroupEgressOpenToWorldRule, SecurityGroupIngressCidrNon32Rule, SecurityGroupIngressOpenToWorldRule
- Defined in:
- lib/cfn-nag/ip_addr.rb
Instance Method Summary collapse
- #ip4_cidr_range?(ingress) ⇒ Boolean
- #ip4_localhost?(egress) ⇒ Boolean
- #ip4_open?(ingress) ⇒ Boolean
- #ip6_cidr_range?(ingress) ⇒ Boolean
- #ip6_localhost?(egress) ⇒ Boolean
- #ip6_open?(ingress) ⇒ Boolean
-
#normalize_cidr_ip6(ingress) ⇒ Object
If it’s a string, just pass through If it’s a symbol - probably because the YAML.load call treats an unquoted ::/0 as a the symbol :‘:/0’ Otherwise it’s probably a Ref or whatever and we aren’t going to do anything with it.
Instance Method Details
#ip4_cidr_range?(ingress) ⇒ Boolean
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# File 'lib/cfn-nag/ip_addr.rb', line 29 def ip4_cidr_range?(ingress) ingress.cidrIp.is_a?(String) && !ingress.cidrIp.end_with?('/32') end |
#ip4_localhost?(egress) ⇒ Boolean
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# File 'lib/cfn-nag/ip_addr.rb', line 6 def ip4_localhost?(egress) egress.cidrIp.is_a?(String) && egress.cidrIp == '127.0.0.1/32' end |
#ip4_open?(ingress) ⇒ Boolean
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# File 'lib/cfn-nag/ip_addr.rb', line 14 def ip4_open?(ingress) # only care about literals. if a Hash/Ref not going to chase it down # given likely a Parameter with external val ingress.cidrIp.is_a?(String) && ingress.cidrIp == '0.0.0.0/0' end |
#ip6_cidr_range?(ingress) ⇒ Boolean
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# File 'lib/cfn-nag/ip_addr.rb', line 33 def ip6_cidr_range?(ingress) normalized_cidr_ip6 = normalize_cidr_ip6(ingress) return false if normalized_cidr_ip6.nil? # only care about literals. if a Hash/Ref not going to chase it down # given likely a Parameter with external val !NetAddr::IPv6Net.parse(normalized_cidr_ip6).to_s.end_with?('/128') end |
#ip6_localhost?(egress) ⇒ Boolean
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# File 'lib/cfn-nag/ip_addr.rb', line 10 def ip6_localhost?(egress) egress.cidrIpv6.to_s == '::1/128' || egress.cidrIpv6.to_s == ':1/128' end |
#ip6_open?(ingress) ⇒ Boolean
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# File 'lib/cfn-nag/ip_addr.rb', line 20 def ip6_open?(ingress) normalized_cidr_ip6 = normalize_cidr_ip6(ingress) return false if normalized_cidr_ip6.nil? # only care about literals. if a Hash/Ref not going to chase it down # given likely a Parameter with external val NetAddr::IPv6Net.parse(normalized_cidr_ip6).cmp(NetAddr::IPv6Net.parse('::/0')).zero? end |
#normalize_cidr_ip6(ingress) ⇒ Object
If it’s a string, just pass through If it’s a symbol - probably because the YAML.load call treats an unquoted ::/0 as a the symbol :‘:/0’ Otherwise it’s probably a Ref or whatever and we aren’t going to do anything with it
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# File 'lib/cfn-nag/ip_addr.rb', line 49 def normalize_cidr_ip6(ingress) if ingress.cidrIpv6.is_a?(Symbol) ":#{ingress.cidrIpv6}" elsif ingress.cidrIpv6.is_a?(String) ingress.cidrIpv6 end end |