prosody
fb1535328ac7
util/ip.lua

Find changesets by keywords by author, files, the commit message, revision number or hash, or revset expression.

Software / code / prosody

Annotate

util/ip.lua @ 6356:fb1535328ac7

prosodyctl: Verify that 'pidfile' is a string, show friendly error otherwise
author Kim Alvefur <zash@zash.se>
date Tue, 26 Aug 2014 12:00:51 +0200
parent 5597:6fe09707c73b
child 5599:34e9f237b915
child 7052:306aabf2d57d
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
4419
b1e49cc314cb util.ip: New module containing IP related functions
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
1 -- Prosody IM
b1e49cc314cb util.ip: New module containing IP related functions
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
2 -- Copyright (C) 2008-2011 Florian Zeitz
b1e49cc314cb util.ip: New module containing IP related functions
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
3 --
b1e49cc314cb util.ip: New module containing IP related functions
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
4 -- This project is MIT/X11 licensed. Please see the
b1e49cc314cb util.ip: New module containing IP related functions
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
5 -- COPYING file in the source package for more information.
b1e49cc314cb util.ip: New module containing IP related functions
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
6 --
b1e49cc314cb util.ip: New module containing IP related functions
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
7
b1e49cc314cb util.ip: New module containing IP related functions
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
8 local ip_methods = {};
b1e49cc314cb util.ip: New module containing IP related functions
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
9 local ip_mt = { __index = function (ip, key) return (ip_methods[key])(ip); end,
b1e49cc314cb util.ip: New module containing IP related functions
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
10 __tostring = function (ip) return ip.addr; end,
b1e49cc314cb util.ip: New module containing IP related functions
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
11 __eq = function (ipA, ipB) return ipA.addr == ipB.addr; end};
b1e49cc314cb util.ip: New module containing IP related functions
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
12 local hex2bits = { ["0"] = "0000", ["1"] = "0001", ["2"] = "0010", ["3"] = "0011", ["4"] = "0100", ["5"] = "0101", ["6"] = "0110", ["7"] = "0111", ["8"] = "1000", ["9"] = "1001", ["A"] = "1010", ["B"] = "1011", ["C"] = "1100", ["D"] = "1101", ["E"] = "1110", ["F"] = "1111" };
b1e49cc314cb util.ip: New module containing IP related functions
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
13
b1e49cc314cb util.ip: New module containing IP related functions
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
14 local function new_ip(ipStr, proto)
b1e49cc314cb util.ip: New module containing IP related functions
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
15 if proto ~= "IPv4" and proto ~= "IPv6" then
b1e49cc314cb util.ip: New module containing IP related functions
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
16 return nil, "invalid protocol";
b1e49cc314cb util.ip: New module containing IP related functions
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
17 end
5597
6fe09707c73b util.ip: Convert IPv4 mapped addresses to hex.
Kim Alvefur <zash@zash.se>
parents: 5552
diff changeset
18 if proto == "IPv6" and ipStr:find('.', 1, true) then
6fe09707c73b util.ip: Convert IPv4 mapped addresses to hex.
Kim Alvefur <zash@zash.se>
parents: 5552
diff changeset
19 local changed;
6fe09707c73b util.ip: Convert IPv4 mapped addresses to hex.
Kim Alvefur <zash@zash.se>
parents: 5552
diff changeset
20 ipStr, changed = ipStr:gsub(":(%d+)%.(%d+)%.(%d+)%.(%d+)$", function(a,b,c,d)
6fe09707c73b util.ip: Convert IPv4 mapped addresses to hex.
Kim Alvefur <zash@zash.se>
parents: 5552
diff changeset
21 return (":%04X:%04X"):format(a*256+b,c*256+d);
6fe09707c73b util.ip: Convert IPv4 mapped addresses to hex.
Kim Alvefur <zash@zash.se>
parents: 5552
diff changeset
22 end);
6fe09707c73b util.ip: Convert IPv4 mapped addresses to hex.
Kim Alvefur <zash@zash.se>
parents: 5552
diff changeset
23 if changed ~= 1 then return nil, "invalid-address"; end
6fe09707c73b util.ip: Convert IPv4 mapped addresses to hex.
Kim Alvefur <zash@zash.se>
parents: 5552
diff changeset
24 end
4419
b1e49cc314cb util.ip: New module containing IP related functions
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
25
b1e49cc314cb util.ip: New module containing IP related functions
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
26 return setmetatable({ addr = ipStr, proto = proto }, ip_mt);
b1e49cc314cb util.ip: New module containing IP related functions
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
27 end
b1e49cc314cb util.ip: New module containing IP related functions
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
28
b1e49cc314cb util.ip: New module containing IP related functions
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
29 local function toBits(ip)
b1e49cc314cb util.ip: New module containing IP related functions
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
30 local result = "";
b1e49cc314cb util.ip: New module containing IP related functions
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
31 local fields = {};
b1e49cc314cb util.ip: New module containing IP related functions
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
32 if ip.proto == "IPv4" then
b1e49cc314cb util.ip: New module containing IP related functions
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
33 ip = ip.toV4mapped;
b1e49cc314cb util.ip: New module containing IP related functions
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
34 end
b1e49cc314cb util.ip: New module containing IP related functions
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
35 ip = (ip.addr):upper();
b1e49cc314cb util.ip: New module containing IP related functions
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
36 ip:gsub("([^:]*):?", function (c) fields[#fields + 1] = c end);
b1e49cc314cb util.ip: New module containing IP related functions
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
37 if not ip:match(":$") then fields[#fields] = nil; end
b1e49cc314cb util.ip: New module containing IP related functions
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
38 for i, field in ipairs(fields) do
b1e49cc314cb util.ip: New module containing IP related functions
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
39 if field:len() == 0 and i ~= 1 and i ~= #fields then
b1e49cc314cb util.ip: New module containing IP related functions
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
40 for i = 1, 16 * (9 - #fields) do
b1e49cc314cb util.ip: New module containing IP related functions
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
41 result = result .. "0";
b1e49cc314cb util.ip: New module containing IP related functions
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
42 end
b1e49cc314cb util.ip: New module containing IP related functions
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
43 else
b1e49cc314cb util.ip: New module containing IP related functions
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
44 for i = 1, 4 - field:len() do
b1e49cc314cb util.ip: New module containing IP related functions
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
45 result = result .. "0000";
b1e49cc314cb util.ip: New module containing IP related functions
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
46 end
b1e49cc314cb util.ip: New module containing IP related functions
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
47 for i = 1, field:len() do
b1e49cc314cb util.ip: New module containing IP related functions
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
48 result = result .. hex2bits[field:sub(i,i)];
b1e49cc314cb util.ip: New module containing IP related functions
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
49 end
b1e49cc314cb util.ip: New module containing IP related functions
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
50 end
b1e49cc314cb util.ip: New module containing IP related functions
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
51 end
b1e49cc314cb util.ip: New module containing IP related functions
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
52 return result;
b1e49cc314cb util.ip: New module containing IP related functions
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
53 end
b1e49cc314cb util.ip: New module containing IP related functions
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
54
b1e49cc314cb util.ip: New module containing IP related functions
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
55 local function commonPrefixLength(ipA, ipB)
b1e49cc314cb util.ip: New module containing IP related functions
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
56 ipA, ipB = toBits(ipA), toBits(ipB);
b1e49cc314cb util.ip: New module containing IP related functions
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
57 for i = 1, 128 do
b1e49cc314cb util.ip: New module containing IP related functions
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
58 if ipA:sub(i,i) ~= ipB:sub(i,i) then
b1e49cc314cb util.ip: New module containing IP related functions
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
59 return i-1;
b1e49cc314cb util.ip: New module containing IP related functions
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
60 end
b1e49cc314cb util.ip: New module containing IP related functions
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
61 end
b1e49cc314cb util.ip: New module containing IP related functions
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
62 return 128;
b1e49cc314cb util.ip: New module containing IP related functions
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
63 end
b1e49cc314cb util.ip: New module containing IP related functions
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
64
b1e49cc314cb util.ip: New module containing IP related functions
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
65 local function v4scope(ip)
b1e49cc314cb util.ip: New module containing IP related functions
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
66 local fields = {};
b1e49cc314cb util.ip: New module containing IP related functions
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
67 ip:gsub("([^.]*).?", function (c) fields[#fields + 1] = tonumber(c) end);
b1e49cc314cb util.ip: New module containing IP related functions
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
68 -- Loopback:
b1e49cc314cb util.ip: New module containing IP related functions
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
69 if fields[1] == 127 then
b1e49cc314cb util.ip: New module containing IP related functions
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
70 return 0x2;
b1e49cc314cb util.ip: New module containing IP related functions
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
71 -- Link-local unicast:
b1e49cc314cb util.ip: New module containing IP related functions
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
72 elseif fields[1] == 169 and fields[2] == 254 then
b1e49cc314cb util.ip: New module containing IP related functions
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
73 return 0x2;
b1e49cc314cb util.ip: New module containing IP related functions
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
74 -- Global unicast:
b1e49cc314cb util.ip: New module containing IP related functions
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
75 else
b1e49cc314cb util.ip: New module containing IP related functions
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
76 return 0xE;
b1e49cc314cb util.ip: New module containing IP related functions
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
77 end
b1e49cc314cb util.ip: New module containing IP related functions
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
78 end
b1e49cc314cb util.ip: New module containing IP related functions
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
79
b1e49cc314cb util.ip: New module containing IP related functions
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
80 local function v6scope(ip)
b1e49cc314cb util.ip: New module containing IP related functions
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
81 -- Loopback:
b1e49cc314cb util.ip: New module containing IP related functions
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
82 if ip:match("^[0:]*1$") then
b1e49cc314cb util.ip: New module containing IP related functions
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
83 return 0x2;
b1e49cc314cb util.ip: New module containing IP related functions
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
84 -- Link-local unicast:
b1e49cc314cb util.ip: New module containing IP related functions
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
85 elseif ip:match("^[Ff][Ee][89ABab]") then
b1e49cc314cb util.ip: New module containing IP related functions
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
86 return 0x2;
b1e49cc314cb util.ip: New module containing IP related functions
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
87 -- Site-local unicast:
b1e49cc314cb util.ip: New module containing IP related functions
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
88 elseif ip:match("^[Ff][Ee][CcDdEeFf]") then
b1e49cc314cb util.ip: New module containing IP related functions
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
89 return 0x5;
b1e49cc314cb util.ip: New module containing IP related functions
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
90 -- Multicast:
b1e49cc314cb util.ip: New module containing IP related functions
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
91 elseif ip:match("^[Ff][Ff]") then
b1e49cc314cb util.ip: New module containing IP related functions
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
92 return tonumber("0x"..ip:sub(4,4));
b1e49cc314cb util.ip: New module containing IP related functions
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
93 -- Global unicast:
b1e49cc314cb util.ip: New module containing IP related functions
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
94 else
b1e49cc314cb util.ip: New module containing IP related functions
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
95 return 0xE;
b1e49cc314cb util.ip: New module containing IP related functions
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
96 end
b1e49cc314cb util.ip: New module containing IP related functions
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
97 end
b1e49cc314cb util.ip: New module containing IP related functions
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
98
b1e49cc314cb util.ip: New module containing IP related functions
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
99 local function label(ip)
b1e49cc314cb util.ip: New module containing IP related functions
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
100 if commonPrefixLength(ip, new_ip("::1", "IPv6")) == 128 then
b1e49cc314cb util.ip: New module containing IP related functions
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
101 return 0;
b1e49cc314cb util.ip: New module containing IP related functions
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
102 elseif commonPrefixLength(ip, new_ip("2002::", "IPv6")) >= 16 then
b1e49cc314cb util.ip: New module containing IP related functions
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
103 return 2;
5552
40e7a6cf15ff util.rfc{3484,6724}: Update to RFC 6724
Florian Zeitz <florob@babelmonkeys.de>
parents: 4433
diff changeset
104 elseif commonPrefixLength(ip, new_ip("2001::", "IPv6")) >= 32 then
40e7a6cf15ff util.rfc{3484,6724}: Update to RFC 6724
Florian Zeitz <florob@babelmonkeys.de>
parents: 4433
diff changeset
105 return 5;
40e7a6cf15ff util.rfc{3484,6724}: Update to RFC 6724
Florian Zeitz <florob@babelmonkeys.de>
parents: 4433
diff changeset
106 elseif commonPrefixLength(ip, new_ip("fc00::", "IPv6")) >= 7 then
40e7a6cf15ff util.rfc{3484,6724}: Update to RFC 6724
Florian Zeitz <florob@babelmonkeys.de>
parents: 4433
diff changeset
107 return 13;
40e7a6cf15ff util.rfc{3484,6724}: Update to RFC 6724
Florian Zeitz <florob@babelmonkeys.de>
parents: 4433
diff changeset
108 elseif commonPrefixLength(ip, new_ip("fec0::", "IPv6")) >= 10 then
40e7a6cf15ff util.rfc{3484,6724}: Update to RFC 6724
Florian Zeitz <florob@babelmonkeys.de>
parents: 4433
diff changeset
109 return 11;
40e7a6cf15ff util.rfc{3484,6724}: Update to RFC 6724
Florian Zeitz <florob@babelmonkeys.de>
parents: 4433
diff changeset
110 elseif commonPrefixLength(ip, new_ip("3ffe::", "IPv6")) >= 16 then
40e7a6cf15ff util.rfc{3484,6724}: Update to RFC 6724
Florian Zeitz <florob@babelmonkeys.de>
parents: 4433
diff changeset
111 return 12;
4419
b1e49cc314cb util.ip: New module containing IP related functions
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
112 elseif commonPrefixLength(ip, new_ip("::", "IPv6")) >= 96 then
b1e49cc314cb util.ip: New module containing IP related functions
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
113 return 3;
b1e49cc314cb util.ip: New module containing IP related functions
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
114 elseif commonPrefixLength(ip, new_ip("::ffff:0:0", "IPv6")) >= 96 then
b1e49cc314cb util.ip: New module containing IP related functions
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
115 return 4;
b1e49cc314cb util.ip: New module containing IP related functions
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
116 else
b1e49cc314cb util.ip: New module containing IP related functions
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
117 return 1;
b1e49cc314cb util.ip: New module containing IP related functions
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
118 end
b1e49cc314cb util.ip: New module containing IP related functions
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
119 end
b1e49cc314cb util.ip: New module containing IP related functions
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
120
b1e49cc314cb util.ip: New module containing IP related functions
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
121 local function precedence(ip)
b1e49cc314cb util.ip: New module containing IP related functions
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
122 if commonPrefixLength(ip, new_ip("::1", "IPv6")) == 128 then
b1e49cc314cb util.ip: New module containing IP related functions
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
123 return 50;
b1e49cc314cb util.ip: New module containing IP related functions
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
124 elseif commonPrefixLength(ip, new_ip("2002::", "IPv6")) >= 16 then
b1e49cc314cb util.ip: New module containing IP related functions
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
125 return 30;
5552
40e7a6cf15ff util.rfc{3484,6724}: Update to RFC 6724
Florian Zeitz <florob@babelmonkeys.de>
parents: 4433
diff changeset
126 elseif commonPrefixLength(ip, new_ip("2001::", "IPv6")) >= 32 then
40e7a6cf15ff util.rfc{3484,6724}: Update to RFC 6724
Florian Zeitz <florob@babelmonkeys.de>
parents: 4433
diff changeset
127 return 5;
40e7a6cf15ff util.rfc{3484,6724}: Update to RFC 6724
Florian Zeitz <florob@babelmonkeys.de>
parents: 4433
diff changeset
128 elseif commonPrefixLength(ip, new_ip("fc00::", "IPv6")) >= 7 then
40e7a6cf15ff util.rfc{3484,6724}: Update to RFC 6724
Florian Zeitz <florob@babelmonkeys.de>
parents: 4433
diff changeset
129 return 3;
40e7a6cf15ff util.rfc{3484,6724}: Update to RFC 6724
Florian Zeitz <florob@babelmonkeys.de>
parents: 4433
diff changeset
130 elseif commonPrefixLength(ip, new_ip("fec0::", "IPv6")) >= 10 then
40e7a6cf15ff util.rfc{3484,6724}: Update to RFC 6724
Florian Zeitz <florob@babelmonkeys.de>
parents: 4433
diff changeset
131 return 1;
40e7a6cf15ff util.rfc{3484,6724}: Update to RFC 6724
Florian Zeitz <florob@babelmonkeys.de>
parents: 4433
diff changeset
132 elseif commonPrefixLength(ip, new_ip("3ffe::", "IPv6")) >= 16 then
40e7a6cf15ff util.rfc{3484,6724}: Update to RFC 6724
Florian Zeitz <florob@babelmonkeys.de>
parents: 4433
diff changeset
133 return 1;
4419
b1e49cc314cb util.ip: New module containing IP related functions
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
134 elseif commonPrefixLength(ip, new_ip("::", "IPv6")) >= 96 then
5552
40e7a6cf15ff util.rfc{3484,6724}: Update to RFC 6724
Florian Zeitz <florob@babelmonkeys.de>
parents: 4433
diff changeset
135 return 1;
4419
b1e49cc314cb util.ip: New module containing IP related functions
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
136 elseif commonPrefixLength(ip, new_ip("::ffff:0:0", "IPv6")) >= 96 then
5552
40e7a6cf15ff util.rfc{3484,6724}: Update to RFC 6724
Florian Zeitz <florob@babelmonkeys.de>
parents: 4433
diff changeset
137 return 35;
4419
b1e49cc314cb util.ip: New module containing IP related functions
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
138 else
b1e49cc314cb util.ip: New module containing IP related functions
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
139 return 40;
b1e49cc314cb util.ip: New module containing IP related functions
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
140 end
b1e49cc314cb util.ip: New module containing IP related functions
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
141 end
b1e49cc314cb util.ip: New module containing IP related functions
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
142
b1e49cc314cb util.ip: New module containing IP related functions
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
143 local function toV4mapped(ip)
b1e49cc314cb util.ip: New module containing IP related functions
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
144 local fields = {};
b1e49cc314cb util.ip: New module containing IP related functions
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
145 local ret = "::ffff:";
b1e49cc314cb util.ip: New module containing IP related functions
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
146 ip:gsub("([^.]*).?", function (c) fields[#fields + 1] = tonumber(c) end);
b1e49cc314cb util.ip: New module containing IP related functions
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
147 ret = ret .. ("%02x"):format(fields[1]);
b1e49cc314cb util.ip: New module containing IP related functions
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
148 ret = ret .. ("%02x"):format(fields[2]);
b1e49cc314cb util.ip: New module containing IP related functions
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
149 ret = ret .. ":"
b1e49cc314cb util.ip: New module containing IP related functions
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
150 ret = ret .. ("%02x"):format(fields[3]);
b1e49cc314cb util.ip: New module containing IP related functions
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
151 ret = ret .. ("%02x"):format(fields[4]);
b1e49cc314cb util.ip: New module containing IP related functions
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
152 return new_ip(ret, "IPv6");
b1e49cc314cb util.ip: New module containing IP related functions
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
153 end
b1e49cc314cb util.ip: New module containing IP related functions
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
154
b1e49cc314cb util.ip: New module containing IP related functions
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
155 function ip_methods:toV4mapped()
b1e49cc314cb util.ip: New module containing IP related functions
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
156 if self.proto ~= "IPv4" then return nil, "No IPv4 address" end
b1e49cc314cb util.ip: New module containing IP related functions
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
157 local value = toV4mapped(self.addr);
b1e49cc314cb util.ip: New module containing IP related functions
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
158 self.toV4mapped = value;
b1e49cc314cb util.ip: New module containing IP related functions
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
159 return value;
b1e49cc314cb util.ip: New module containing IP related functions
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
160 end
b1e49cc314cb util.ip: New module containing IP related functions
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
161
b1e49cc314cb util.ip: New module containing IP related functions
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
162 function ip_methods:label()
b1e49cc314cb util.ip: New module containing IP related functions
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
163 local value;
b1e49cc314cb util.ip: New module containing IP related functions
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
164 if self.proto == "IPv4" then
b1e49cc314cb util.ip: New module containing IP related functions
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
165 value = label(self.toV4mapped);
b1e49cc314cb util.ip: New module containing IP related functions
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
166 else
b1e49cc314cb util.ip: New module containing IP related functions
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
167 value = label(self);
b1e49cc314cb util.ip: New module containing IP related functions
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
168 end
b1e49cc314cb util.ip: New module containing IP related functions
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
169 self.label = value;
b1e49cc314cb util.ip: New module containing IP related functions
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
170 return value;
b1e49cc314cb util.ip: New module containing IP related functions
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
171 end
b1e49cc314cb util.ip: New module containing IP related functions
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
172
b1e49cc314cb util.ip: New module containing IP related functions
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
173 function ip_methods:precedence()
b1e49cc314cb util.ip: New module containing IP related functions
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
174 local value;
b1e49cc314cb util.ip: New module containing IP related functions
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
175 if self.proto == "IPv4" then
b1e49cc314cb util.ip: New module containing IP related functions
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
176 value = precedence(self.toV4mapped);
b1e49cc314cb util.ip: New module containing IP related functions
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
177 else
b1e49cc314cb util.ip: New module containing IP related functions
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
178 value = precedence(self);
b1e49cc314cb util.ip: New module containing IP related functions
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
179 end
b1e49cc314cb util.ip: New module containing IP related functions
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
180 self.precedence = value;
b1e49cc314cb util.ip: New module containing IP related functions
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
181 return value;
b1e49cc314cb util.ip: New module containing IP related functions
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
182 end
b1e49cc314cb util.ip: New module containing IP related functions
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
183
b1e49cc314cb util.ip: New module containing IP related functions
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
184 function ip_methods:scope()
b1e49cc314cb util.ip: New module containing IP related functions
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
185 local value;
b1e49cc314cb util.ip: New module containing IP related functions
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
186 if self.proto == "IPv4" then
b1e49cc314cb util.ip: New module containing IP related functions
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
187 value = v4scope(self.addr);
b1e49cc314cb util.ip: New module containing IP related functions
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
188 else
b1e49cc314cb util.ip: New module containing IP related functions
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
189 value = v6scope(self.addr);
b1e49cc314cb util.ip: New module containing IP related functions
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
190 end
b1e49cc314cb util.ip: New module containing IP related functions
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
191 self.scope = value;
b1e49cc314cb util.ip: New module containing IP related functions
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
192 return value;
b1e49cc314cb util.ip: New module containing IP related functions
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
193 end
b1e49cc314cb util.ip: New module containing IP related functions
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
194
b1e49cc314cb util.ip: New module containing IP related functions
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
195 return {new_ip = new_ip,
b1e49cc314cb util.ip: New module containing IP related functions
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
196 commonPrefixLength = commonPrefixLength};