Exemple #1
0
// New Index object.
func NewIndex() *Index {
	v6 := bitidx.NewNode(0)
	z := []byte(net.IPv4zero.To16())
	v6.Put(bitidx.NewBits(z, 12*8+1), 0, false)
	v4, _, _ := v6.Find(bitidx.NewBits(z, 12*8))

	return &Index{[]bitidx.Node{v6, v4}, map[string]int{"": 0}, []string{""}, 0}
}
Exemple #2
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func TestParseRIR(t *testing.T) {
	a, x := ParseRIR("apnic|CN|ipv4|153.36.0.0|131072|20110331|allocated")
	b, y := ParseRIR("apnic|CN|ipv6|240c:8000::|21|20140905|allocated")

	t.Log(a, x)
	t.Log(b, y)

	n := bitidx.NewNode(0)
	n.Put(a.Bits(), 100, false)
	t.Log(n.Find(bitidx.NewBits([]byte((net.IP{153, 37, 0, 1}).To16()), -1)))
	t.Log(n.Find(bitidx.NewBits([]byte(net.IPv4zero.To16()), 12*8)))
}
Exemple #3
0
// RIR: Regional Internet Registry
// https://ftp.apnic.net/stats/apnic/
// examples,
//   apnic|CN|ipv4|153.36.0.0|131072|20110331|allocated
//   apnic|CN|ipv6|240c:8000::|21|20140905|allocated
//   lacnic|VE|ipv4|190.168.0.0|32768|20070329|assigned
//   lacnic|VE|ipv4|190.168.128.0|16384|20070419|assigned
func ParseRIR(line string) (r *Block, name string) {
	if ss := reRIR.FindStringSubmatch(line); len(ss) == 6 {
		if ip := net.ParseIP(ss[3]); ip != nil {
			mc, _ := strconv.ParseUint(ss[4], 10, 64)
			switch ss[2] {
			case "4":
				if count, ok := bit2loc[uint32(mc)]; ok {
					r = &Block{bitidx.NewBits([]byte(ip.To4()), count), BlockIPv4}
					name = ss[1]
				}
			case "6":
				r = &Block{bitidx.NewBits([]byte(ip), int(mc)), BlockIPv6}
				name = ss[1]
			}
		}
	}

	return
}
Exemple #4
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// Restore structure from json previously exported.
func NewIndexFromJson(rd io.Reader) (index *Index, extra interface{}) {
	var v *jsonIndex
	dec := json.NewDecoder(rd)
	if dec.Decode(&v) == nil {
		v.Index.ConsolidateNum()
		s, _, _ := v.Index.Find(bitidx.NewBits([]byte(net.IPv4zero.To16()), 12*8))
		return &Index{[]bitidx.Node{v.Index, s}, v.Ids, v.Names, v.LastId}, v.Extra
	}
	return nil, nil
}
Exemple #5
0
func TestParseRIR1(t *testing.T) {
	a, x := ParseRIR("apnic|CN|ipv4|153.36.0.0|131072|20110331|allocated")
	b, y := ParseRIR("apnic|CN|ipv6|240c:8000::|21|20140905|allocated")

	t.Log(a, x)
	t.Log(b, y)

	r := bitidx.NewNode(0)
	r.Put(bitidx.NewBits([]byte(net.IPv4zero.To16()), 12*8+1), 0, false)
	s, _, _ := r.Find(bitidx.NewBits([]byte(net.IPv4zero.To16()), 12*8))

	rs := []bitidx.Node{r, s}

	rs[a.Kind()].Put(a.Bits(), 10, false)
	rs[b.Kind()].Put(b.Bits(), 100, false)

	t.Log(r)
	t.Log(s)

	t.Log(rs[BlockIPv4].Find(bitidx.NewBits([]byte((net.IP{153, 37, 0, 1}).To4()), -1)))
}
Exemple #6
0
// Find ip for name. When no ip is found empty string is returned.
func (index *Index) Find(ip string) (name string, length int) {
	if i := net.ParseIP(ip); i != nil {
		var n bitidx.Node
		if j := i.To4(); j != nil {
			n = index.index[BlockIPv4]
			i = j
		} else {
			n = index.index[BlockIPv6]
		}

		_, x, l := n.Find(bitidx.NewBits([]byte(i), -1))
		if id, ok := x.(int); ok {
			name = index.names[id]
			length = l
		}
	}

	return
}