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tsdns: implement reverse DNS lookups, canonicalize names everywhere. (#640)

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Signed-off-by: Dmytro Shynkevych <dmytro@tailscale.com>
This commit is contained in:
Dmytro Shynkevych
2020-08-06 14:25:28 -04:00
committed by GitHub
parent 41c4560592
commit 78c2e1ff83
5 changed files with 413 additions and 90 deletions
Download Patch File Download Diff File Expand all files Collapse all files
wgengine/tsdns/map_test.go
+37 -37
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@@ -20,17 +20,17 @@ func TestPretty(t *testing.T) {
{
"single",
NewMap(map[string]netaddr.IP{
"hello.ipn.dev": netaddr.IPv4(100, 101, 102, 103),
"hello.ipn.dev.": netaddr.IPv4(100, 101, 102, 103),
}),
"hello.ipn.dev\t100.101.102.103\n",
"hello.ipn.dev.\t100.101.102.103\n",
},
{
"multiple",
NewMap(map[string]netaddr.IP{
"test1.domain": netaddr.IPv4(100, 101, 102, 103),
"test2.sub.domain": netaddr.IPv4(100, 99, 9, 1),
"test1.domain.": netaddr.IPv4(100, 101, 102, 103),
"test2.sub.domain.": netaddr.IPv4(100, 99, 9, 1),
}),
"test1.domain\t100.101.102.103\ntest2.sub.domain\t100.99.9.1\n",
"test1.domain.\t100.101.102.103\ntest2.sub.domain.\t100.99.9.1\n",
},
}
@@ -55,75 +55,75 @@ func TestPrettyDiffFrom(t *testing.T) {
"from_empty",
nil,
NewMap(map[string]netaddr.IP{
"test1.ipn.dev": netaddr.IPv4(100, 101, 102, 103),
"test2.ipn.dev": netaddr.IPv4(100, 103, 102, 101),
"test1.ipn.dev.": netaddr.IPv4(100, 101, 102, 103),
"test2.ipn.dev.": netaddr.IPv4(100, 103, 102, 101),
}),
"+test1.ipn.dev\t100.101.102.103\n+test2.ipn.dev\t100.103.102.101\n",
"+test1.ipn.dev.\t100.101.102.103\n+test2.ipn.dev.\t100.103.102.101\n",
},
{
"equal",
NewMap(map[string]netaddr.IP{
"test1.ipn.dev": netaddr.IPv4(100, 101, 102, 103),
"test2.ipn.dev": netaddr.IPv4(100, 103, 102, 101),
"test1.ipn.dev.": netaddr.IPv4(100, 101, 102, 103),
"test2.ipn.dev.": netaddr.IPv4(100, 103, 102, 101),
}),
NewMap(map[string]netaddr.IP{
"test2.ipn.dev": netaddr.IPv4(100, 103, 102, 101),
"test1.ipn.dev": netaddr.IPv4(100, 101, 102, 103),
"test2.ipn.dev.": netaddr.IPv4(100, 103, 102, 101),
"test1.ipn.dev.": netaddr.IPv4(100, 101, 102, 103),
}),
"",
},
{
"changed_ip",
NewMap(map[string]netaddr.IP{
"test1.ipn.dev": netaddr.IPv4(100, 101, 102, 103),
"test2.ipn.dev": netaddr.IPv4(100, 103, 102, 101),
"test1.ipn.dev.": netaddr.IPv4(100, 101, 102, 103),
"test2.ipn.dev.": netaddr.IPv4(100, 103, 102, 101),
}),
NewMap(map[string]netaddr.IP{
"test2.ipn.dev": netaddr.IPv4(100, 104, 102, 101),
"test1.ipn.dev": netaddr.IPv4(100, 101, 102, 103),
"test2.ipn.dev.": netaddr.IPv4(100, 104, 102, 101),
"test1.ipn.dev.": netaddr.IPv4(100, 101, 102, 103),
}),
"-test2.ipn.dev\t100.103.102.101\n+test2.ipn.dev\t100.104.102.101\n",
"-test2.ipn.dev.\t100.103.102.101\n+test2.ipn.dev.\t100.104.102.101\n",
},
{
"new_domain",
NewMap(map[string]netaddr.IP{
"test1.ipn.dev": netaddr.IPv4(100, 101, 102, 103),
"test2.ipn.dev": netaddr.IPv4(100, 103, 102, 101),
"test1.ipn.dev.": netaddr.IPv4(100, 101, 102, 103),
"test2.ipn.dev.": netaddr.IPv4(100, 103, 102, 101),
}),
NewMap(map[string]netaddr.IP{
"test3.ipn.dev": netaddr.IPv4(100, 105, 106, 107),
"test2.ipn.dev": netaddr.IPv4(100, 103, 102, 101),
"test1.ipn.dev": netaddr.IPv4(100, 101, 102, 103),
"test3.ipn.dev.": netaddr.IPv4(100, 105, 106, 107),
"test2.ipn.dev.": netaddr.IPv4(100, 103, 102, 101),
"test1.ipn.dev.": netaddr.IPv4(100, 101, 102, 103),
}),
"+test3.ipn.dev\t100.105.106.107\n",
"+test3.ipn.dev.\t100.105.106.107\n",
},
{
"gone_domain",
NewMap(map[string]netaddr.IP{
"test1.ipn.dev": netaddr.IPv4(100, 101, 102, 103),
"test2.ipn.dev": netaddr.IPv4(100, 103, 102, 101),
"test1.ipn.dev.": netaddr.IPv4(100, 101, 102, 103),
"test2.ipn.dev.": netaddr.IPv4(100, 103, 102, 101),
}),
NewMap(map[string]netaddr.IP{
"test1.ipn.dev": netaddr.IPv4(100, 101, 102, 103),
"test1.ipn.dev.": netaddr.IPv4(100, 101, 102, 103),
}),
"-test2.ipn.dev\t100.103.102.101\n",
"-test2.ipn.dev.\t100.103.102.101\n",
},
{
"mixed",
NewMap(map[string]netaddr.IP{
"test1.ipn.dev": netaddr.IPv4(100, 101, 102, 103),
"test4.ipn.dev": netaddr.IPv4(100, 107, 106, 105),
"test5.ipn.dev": netaddr.IPv4(100, 64, 1, 1),
"test2.ipn.dev": netaddr.IPv4(100, 103, 102, 101),
"test1.ipn.dev.": netaddr.IPv4(100, 101, 102, 103),
"test4.ipn.dev.": netaddr.IPv4(100, 107, 106, 105),
"test5.ipn.dev.": netaddr.IPv4(100, 64, 1, 1),
"test2.ipn.dev.": netaddr.IPv4(100, 103, 102, 101),
}),
NewMap(map[string]netaddr.IP{
"test2.ipn.dev": netaddr.IPv4(100, 104, 102, 101),
"test1.ipn.dev": netaddr.IPv4(100, 100, 101, 102),
"test3.ipn.dev": netaddr.IPv4(100, 64, 1, 1),
"test2.ipn.dev.": netaddr.IPv4(100, 104, 102, 101),
"test1.ipn.dev.": netaddr.IPv4(100, 100, 101, 102),
"test3.ipn.dev.": netaddr.IPv4(100, 64, 1, 1),
}),
"-test1.ipn.dev\t100.101.102.103\n+test1.ipn.dev\t100.100.101.102\n" +
"-test2.ipn.dev\t100.103.102.101\n+test2.ipn.dev\t100.104.102.101\n" +
"+test3.ipn.dev\t100.64.1.1\n-test4.ipn.dev\t100.107.106.105\n-test5.ipn.dev\t100.64.1.1\n",
"-test1.ipn.dev.\t100.101.102.103\n+test1.ipn.dev.\t100.100.101.102\n" +
"-test2.ipn.dev.\t100.103.102.101\n+test2.ipn.dev.\t100.104.102.101\n" +
"+test3.ipn.dev.\t100.64.1.1\n-test4.ipn.dev.\t100.107.106.105\n-test5.ipn.dev.\t100.64.1.1\n",
},
}