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all: add config to enable/disable answering WAN clients

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This commit is contained in:
Cuong Manh Le
2023-12-12 18:34:41 +07:00
committed by Cuong Manh Le
parent dfbcb1489d
commit 41846b6d4c
4 changed files with 63 additions and 8 deletions
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cmd/cli/dns_proxy_test.go
+26
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@@ -405,3 +405,29 @@ func Test_isPrivatePtrLookup(t *testing.T) {
})
}
}
func Test_isWanClient(t *testing.T) {
tests := []struct {
name string
addr net.Addr
isWanClient bool
}{
// RFC 1918 allocates 10.0.0.0/8, 172.16.0.0/12, and 192.168.0.0/16 as
{"10.0.0.0/8", &net.UDPAddr{IP: net.ParseIP("10.0.0.123")}, false},
{"172.16.0.0/12", &net.UDPAddr{IP: net.ParseIP("172.16.0.123")}, false},
{"192.168.0.0/16", &net.UDPAddr{IP: net.ParseIP("192.168.1.123")}, false},
{"CGNAT", &net.UDPAddr{IP: net.ParseIP("100.66.27.28")}, false},
{"Loopback", &net.UDPAddr{IP: net.ParseIP("127.0.0.1")}, false},
{"Link Local Unicast", &net.UDPAddr{IP: net.ParseIP("fe80::69f6:e16e:8bdb:433f")}, false},
{"Public", &net.UDPAddr{IP: net.ParseIP("8.8.8.8")}, true},
}
for _, tc := range tests {
tc := tc
t.Run(tc.name, func(t *testing.T) {
t.Parallel()
if got := isWanClient(tc.addr); tc.isWanClient != got {
t.Errorf("unexpected result, want: %v, got: %v", tc.isWanClient, got)
}
})
}
}