brent saner
cbfaaddf34
ADDED: * netx: ** docs updated ** added NOTES.adoc for more extensive info that doesn't need to be in the library docs ** Addr4in6Compat() ** Addr4in6Mapped() ** Addr4in6Mapped() ** HasSubnet() ** IP4MapPfx4to6() ** IP4MapPfx6to4() ** IPSetCombined() ** IPSetFrom() ** IPSetFromNative() ** IsAddr4Compat() ** IsPublic() ** MustIPSetCombined() ** MustIPSetFrom() ** MustIPSetFromNative() ** Pfx4in6Compat() (untested) ** Pfx4in6Mapped() (untested) ** UnmapAddr() ** UnmapPfx() ** Better support in other functions for IPv4-Compatible/IPv4-Mapped addressing
53 lines
1.2 KiB
Go
53 lines
1.2 KiB
Go
package netx
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import (
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"net/netip"
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"go4.org/netipx"
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)
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const (
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ip4in6Legacy96 string = "::"
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ip4in6Modern96 string = "::ffff:"
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)
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var (
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// IPv4 documentation prefixes (RFC 5737)
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ipDoc4pfxs []netip.Prefix = []netip.Prefix{
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netip.MustParsePrefix("192.0.2.0/24"),
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netip.MustParsePrefix("198.51.100.0/24"),
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netip.MustParsePrefix("203.0.113.0/24"),
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}
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ipDoc4 *netipx.IPSet = MustIPSetFromNative(nil, ipDoc4pfxs, nil)
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// IPv6 documentation prefixes (RFC 3849, RFC 9637)
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ipDoc6pfxs []netip.Prefix = []netip.Prefix{
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netip.MustParsePrefix("2001:db8::/32"),
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netip.MustParsePrefix("3fff::/20"),
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}
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ipDoc6 *netipx.IPSet = MustIPSetFromNative(nil, ipDoc6pfxs, nil)
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// combined documentation prefixes
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ipDoc *netipx.IPSet = MustIPSetCombined(
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[]*netipx.IPSet{
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ipDoc4,
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ipDoc6,
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},
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)
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// CGNAT/LSN (RFC 6598)
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cgnat4 netip.Prefix = netip.MustParsePrefix("100.64.0.0/10")
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// IPv4-Compatible IPv6 Address, RFC 4291 § 2.5.5.1
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ip4in6Legacy netip.Prefix = netip.MustParsePrefix(ip4in6Legacy96 + "/96")
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// IPv4-Mapped IPv6 Address, RFC 4291 § 2.5.5.2
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ip4in6Modern netip.Prefix = netip.MustParsePrefix(ip4in6Modern96 + "0:0/96")
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// both
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ip4in6 *netipx.IPSet = MustIPSetFromNative(
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nil,
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[]netip.Prefix{
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ip4in6Legacy,
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ip4in6Modern,
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},
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nil,
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)
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)
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