f7f472ae07
The mapper package contains functions related to creating and marshalling reponses to machines. Signed-off-by: Kristoffer Dalby <kristoffer@tailscale.com>
109 lines
2.3 KiB
Go
109 lines
2.3 KiB
Go
package hscontrol
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import (
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"net/netip"
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"gopkg.in/check.v1"
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)
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func (s *Suite) TestMagicDNSRootDomains100(c *check.C) {
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prefixes := []netip.Prefix{
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netip.MustParsePrefix("100.64.0.0/10"),
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}
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domains := generateMagicDNSRootDomains(prefixes)
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found := false
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for _, domain := range domains {
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if domain == "64.100.in-addr.arpa." {
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found = true
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break
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}
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}
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c.Assert(found, check.Equals, true)
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found = false
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for _, domain := range domains {
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if domain == "100.100.in-addr.arpa." {
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found = true
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break
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}
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}
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c.Assert(found, check.Equals, true)
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found = false
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for _, domain := range domains {
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if domain == "127.100.in-addr.arpa." {
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found = true
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break
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}
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}
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c.Assert(found, check.Equals, true)
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}
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func (s *Suite) TestMagicDNSRootDomains172(c *check.C) {
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prefixes := []netip.Prefix{
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netip.MustParsePrefix("172.16.0.0/16"),
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}
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domains := generateMagicDNSRootDomains(prefixes)
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found := false
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for _, domain := range domains {
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if domain == "0.16.172.in-addr.arpa." {
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found = true
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break
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}
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}
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c.Assert(found, check.Equals, true)
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found = false
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for _, domain := range domains {
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if domain == "255.16.172.in-addr.arpa." {
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found = true
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break
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}
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}
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c.Assert(found, check.Equals, true)
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}
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// Happens when netmask is a multiple of 4 bits (sounds likely).
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func (s *Suite) TestMagicDNSRootDomainsIPv6Single(c *check.C) {
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prefixes := []netip.Prefix{
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netip.MustParsePrefix("fd7a:115c:a1e0::/48"),
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}
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domains := generateMagicDNSRootDomains(prefixes)
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c.Assert(len(domains), check.Equals, 1)
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c.Assert(
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domains[0].WithTrailingDot(),
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check.Equals,
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"0.e.1.a.c.5.1.1.a.7.d.f.ip6.arpa.",
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)
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}
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func (s *Suite) TestMagicDNSRootDomainsIPv6SingleMultiple(c *check.C) {
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prefixes := []netip.Prefix{
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netip.MustParsePrefix("fd7a:115c:a1e0::/50"),
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}
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domains := generateMagicDNSRootDomains(prefixes)
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yieldsRoot := func(dom string) bool {
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for _, candidate := range domains {
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if candidate.WithTrailingDot() == dom {
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return true
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}
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}
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return false
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}
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c.Assert(len(domains), check.Equals, 4)
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c.Assert(yieldsRoot("0.0.e.1.a.c.5.1.1.a.7.d.f.ip6.arpa."), check.Equals, true)
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c.Assert(yieldsRoot("1.0.e.1.a.c.5.1.1.a.7.d.f.ip6.arpa."), check.Equals, true)
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c.Assert(yieldsRoot("2.0.e.1.a.c.5.1.1.a.7.d.f.ip6.arpa."), check.Equals, true)
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c.Assert(yieldsRoot("3.0.e.1.a.c.5.1.1.a.7.d.f.ip6.arpa."), check.Equals, true)
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}
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