prosody
97c1399720c2
util/rfc6724.lua

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

Software / code / prosody

Annotate

util/rfc6724.lua @ 11845:97c1399720c2

util.argparse: Add test for #1691
author Kim Alvefur <zash@zash.se>
date Tue, 12 Oct 2021 14:54:04 +0200
parent 7259:d8300985f2bb
child 12975:d10957394a3c
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
4420
4314eeeed394 util.rfc3484: New util implementing RFC3484 sorting
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
1 -- Prosody IM
5552
40e7a6cf15ff util.rfc{3484,6724}: Update to RFC 6724
Florian Zeitz <florob@babelmonkeys.de>
parents: 4830
diff changeset
2 -- Copyright (C) 2011-2013 Florian Zeitz
4420
4314eeeed394 util.rfc3484: New util implementing RFC3484 sorting
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
3 --
4314eeeed394 util.rfc3484: New util implementing RFC3484 sorting
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
4 -- This project is MIT/X11 licensed. Please see the
4314eeeed394 util.rfc3484: New util implementing RFC3484 sorting
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
5 -- COPYING file in the source package for more information.
4314eeeed394 util.rfc3484: New util implementing RFC3484 sorting
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
6 --
4314eeeed394 util.rfc3484: New util implementing RFC3484 sorting
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
7
5552
40e7a6cf15ff util.rfc{3484,6724}: Update to RFC 6724
Florian Zeitz <florob@babelmonkeys.de>
parents: 4830
diff changeset
8 -- This is used to sort destination addresses by preference
40e7a6cf15ff util.rfc{3484,6724}: Update to RFC 6724
Florian Zeitz <florob@babelmonkeys.de>
parents: 4830
diff changeset
9 -- during S2S connections.
40e7a6cf15ff util.rfc{3484,6724}: Update to RFC 6724
Florian Zeitz <florob@babelmonkeys.de>
parents: 4830
diff changeset
10 -- We can't hand this off to getaddrinfo, since it blocks
40e7a6cf15ff util.rfc{3484,6724}: Update to RFC 6724
Florian Zeitz <florob@babelmonkeys.de>
parents: 4830
diff changeset
11
40e7a6cf15ff util.rfc{3484,6724}: Update to RFC 6724
Florian Zeitz <florob@babelmonkeys.de>
parents: 4830
diff changeset
12 local ip_commonPrefixLength = require"util.ip".commonPrefixLength
4420
4314eeeed394 util.rfc3484: New util implementing RFC3484 sorting
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
13
5552
40e7a6cf15ff util.rfc{3484,6724}: Update to RFC 6724
Florian Zeitz <florob@babelmonkeys.de>
parents: 4830
diff changeset
14 local function commonPrefixLength(ipA, ipB)
40e7a6cf15ff util.rfc{3484,6724}: Update to RFC 6724
Florian Zeitz <florob@babelmonkeys.de>
parents: 4830
diff changeset
15 local len = ip_commonPrefixLength(ipA, ipB);
40e7a6cf15ff util.rfc{3484,6724}: Update to RFC 6724
Florian Zeitz <florob@babelmonkeys.de>
parents: 4830
diff changeset
16 return len < 64 and len or 64;
40e7a6cf15ff util.rfc{3484,6724}: Update to RFC 6724
Florian Zeitz <florob@babelmonkeys.de>
parents: 4830
diff changeset
17 end
40e7a6cf15ff util.rfc{3484,6724}: Update to RFC 6724
Florian Zeitz <florob@babelmonkeys.de>
parents: 4830
diff changeset
18
4423
ded726418b16 util.rfc3484: Use a stable sorting algorithm
Florian Zeitz <florob@babelmonkeys.de>
parents: 4420
diff changeset
19 local function t_sort(t, comp)
ded726418b16 util.rfc3484: Use a stable sorting algorithm
Florian Zeitz <florob@babelmonkeys.de>
parents: 4420
diff changeset
20 for i = 1, (#t - 1) do
ded726418b16 util.rfc3484: Use a stable sorting algorithm
Florian Zeitz <florob@babelmonkeys.de>
parents: 4420
diff changeset
21 for j = (i + 1), #t do
ded726418b16 util.rfc3484: Use a stable sorting algorithm
Florian Zeitz <florob@babelmonkeys.de>
parents: 4420
diff changeset
22 local a, b = t[i], t[j];
ded726418b16 util.rfc3484: Use a stable sorting algorithm
Florian Zeitz <florob@babelmonkeys.de>
parents: 4420
diff changeset
23 if not comp(a,b) then
ded726418b16 util.rfc3484: Use a stable sorting algorithm
Florian Zeitz <florob@babelmonkeys.de>
parents: 4420
diff changeset
24 t[i], t[j] = b, a;
ded726418b16 util.rfc3484: Use a stable sorting algorithm
Florian Zeitz <florob@babelmonkeys.de>
parents: 4420
diff changeset
25 end
ded726418b16 util.rfc3484: Use a stable sorting algorithm
Florian Zeitz <florob@babelmonkeys.de>
parents: 4420
diff changeset
26 end
ded726418b16 util.rfc3484: Use a stable sorting algorithm
Florian Zeitz <florob@babelmonkeys.de>
parents: 4420
diff changeset
27 end
ded726418b16 util.rfc3484: Use a stable sorting algorithm
Florian Zeitz <florob@babelmonkeys.de>
parents: 4420
diff changeset
28 end
ded726418b16 util.rfc3484: Use a stable sorting algorithm
Florian Zeitz <florob@babelmonkeys.de>
parents: 4420
diff changeset
29
4830
ea907059a90e util.rfc3484: Don't pollute the global scope.
Kim Alvefur <zash@zash.se>
parents: 4423
diff changeset
30 local function source(dest, candidates)
4420
4314eeeed394 util.rfc3484: New util implementing RFC3484 sorting
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
31 local function comp(ipA, ipB)
4314eeeed394 util.rfc3484: New util implementing RFC3484 sorting
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
32 -- Rule 1: Prefer same address
4314eeeed394 util.rfc3484: New util implementing RFC3484 sorting
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
33 if dest == ipA then
4314eeeed394 util.rfc3484: New util implementing RFC3484 sorting
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
34 return true;
4314eeeed394 util.rfc3484: New util implementing RFC3484 sorting
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
35 elseif dest == ipB then
4314eeeed394 util.rfc3484: New util implementing RFC3484 sorting
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
36 return false;
4314eeeed394 util.rfc3484: New util implementing RFC3484 sorting
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
37 end
4314eeeed394 util.rfc3484: New util implementing RFC3484 sorting
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
38
4314eeeed394 util.rfc3484: New util implementing RFC3484 sorting
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
39 -- Rule 2: Prefer appropriate scope
4314eeeed394 util.rfc3484: New util implementing RFC3484 sorting
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
40 if ipA.scope < ipB.scope then
4314eeeed394 util.rfc3484: New util implementing RFC3484 sorting
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
41 if ipA.scope < dest.scope then
4314eeeed394 util.rfc3484: New util implementing RFC3484 sorting
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
42 return false;
4314eeeed394 util.rfc3484: New util implementing RFC3484 sorting
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
43 else
4314eeeed394 util.rfc3484: New util implementing RFC3484 sorting
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
44 return true;
4314eeeed394 util.rfc3484: New util implementing RFC3484 sorting
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
45 end
4314eeeed394 util.rfc3484: New util implementing RFC3484 sorting
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
46 elseif ipA.scope > ipB.scope then
4314eeeed394 util.rfc3484: New util implementing RFC3484 sorting
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
47 if ipB.scope < dest.scope then
4314eeeed394 util.rfc3484: New util implementing RFC3484 sorting
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
48 return true;
4314eeeed394 util.rfc3484: New util implementing RFC3484 sorting
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
49 else
4314eeeed394 util.rfc3484: New util implementing RFC3484 sorting
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
50 return false;
4314eeeed394 util.rfc3484: New util implementing RFC3484 sorting
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
51 end
4314eeeed394 util.rfc3484: New util implementing RFC3484 sorting
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
52 end
4314eeeed394 util.rfc3484: New util implementing RFC3484 sorting
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
53
4314eeeed394 util.rfc3484: New util implementing RFC3484 sorting
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
54 -- Rule 3: Avoid deprecated addresses
4314eeeed394 util.rfc3484: New util implementing RFC3484 sorting
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
55 -- XXX: No way to determine this
4314eeeed394 util.rfc3484: New util implementing RFC3484 sorting
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
56 -- Rule 4: Prefer home addresses
4314eeeed394 util.rfc3484: New util implementing RFC3484 sorting
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
57 -- XXX: Mobility Address related, no way to determine this
4314eeeed394 util.rfc3484: New util implementing RFC3484 sorting
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
58 -- Rule 5: Prefer outgoing interface
4314eeeed394 util.rfc3484: New util implementing RFC3484 sorting
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
59 -- XXX: Interface to address relation. No way to determine this
4314eeeed394 util.rfc3484: New util implementing RFC3484 sorting
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
60 -- Rule 6: Prefer matching label
4314eeeed394 util.rfc3484: New util implementing RFC3484 sorting
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
61 if ipA.label == dest.label and ipB.label ~= dest.label then
4314eeeed394 util.rfc3484: New util implementing RFC3484 sorting
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
62 return true;
4314eeeed394 util.rfc3484: New util implementing RFC3484 sorting
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
63 elseif ipB.label == dest.label and ipA.label ~= dest.label then
4314eeeed394 util.rfc3484: New util implementing RFC3484 sorting
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
64 return false;
4314eeeed394 util.rfc3484: New util implementing RFC3484 sorting
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
65 end
4314eeeed394 util.rfc3484: New util implementing RFC3484 sorting
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
66
5552
40e7a6cf15ff util.rfc{3484,6724}: Update to RFC 6724
Florian Zeitz <florob@babelmonkeys.de>
parents: 4830
diff changeset
67 -- Rule 7: Prefer temporary addresses (over public ones)
4420
4314eeeed394 util.rfc3484: New util implementing RFC3484 sorting
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
68 -- XXX: No way to determine this
4314eeeed394 util.rfc3484: New util implementing RFC3484 sorting
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
69 -- Rule 8: Use longest matching prefix
4314eeeed394 util.rfc3484: New util implementing RFC3484 sorting
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
70 if commonPrefixLength(ipA, dest) > commonPrefixLength(ipB, dest) then
4314eeeed394 util.rfc3484: New util implementing RFC3484 sorting
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
71 return true;
4314eeeed394 util.rfc3484: New util implementing RFC3484 sorting
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
72 else
4314eeeed394 util.rfc3484: New util implementing RFC3484 sorting
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
73 return false;
4314eeeed394 util.rfc3484: New util implementing RFC3484 sorting
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
74 end
4314eeeed394 util.rfc3484: New util implementing RFC3484 sorting
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
75 end
4314eeeed394 util.rfc3484: New util implementing RFC3484 sorting
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
76
4314eeeed394 util.rfc3484: New util implementing RFC3484 sorting
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
77 t_sort(candidates, comp);
4314eeeed394 util.rfc3484: New util implementing RFC3484 sorting
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
78 return candidates[1];
4314eeeed394 util.rfc3484: New util implementing RFC3484 sorting
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
79 end
4314eeeed394 util.rfc3484: New util implementing RFC3484 sorting
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
80
4830
ea907059a90e util.rfc3484: Don't pollute the global scope.
Kim Alvefur <zash@zash.se>
parents: 4423
diff changeset
81 local function destination(candidates, sources)
4420
4314eeeed394 util.rfc3484: New util implementing RFC3484 sorting
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
82 local sourceAddrs = {};
4314eeeed394 util.rfc3484: New util implementing RFC3484 sorting
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
83 local function comp(ipA, ipB)
4314eeeed394 util.rfc3484: New util implementing RFC3484 sorting
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
84 local ipAsource = sourceAddrs[ipA];
4314eeeed394 util.rfc3484: New util implementing RFC3484 sorting
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
85 local ipBsource = sourceAddrs[ipB];
4314eeeed394 util.rfc3484: New util implementing RFC3484 sorting
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
86 -- Rule 1: Avoid unusable destinations
4314eeeed394 util.rfc3484: New util implementing RFC3484 sorting
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
87 -- XXX: No such information
4314eeeed394 util.rfc3484: New util implementing RFC3484 sorting
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
88 -- Rule 2: Prefer matching scope
4314eeeed394 util.rfc3484: New util implementing RFC3484 sorting
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
89 if ipA.scope == ipAsource.scope and ipB.scope ~= ipBsource.scope then
4314eeeed394 util.rfc3484: New util implementing RFC3484 sorting
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
90 return true;
4314eeeed394 util.rfc3484: New util implementing RFC3484 sorting
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
91 elseif ipA.scope ~= ipAsource.scope and ipB.scope == ipBsource.scope then
4314eeeed394 util.rfc3484: New util implementing RFC3484 sorting
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
92 return false;
4314eeeed394 util.rfc3484: New util implementing RFC3484 sorting
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
93 end
4314eeeed394 util.rfc3484: New util implementing RFC3484 sorting
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
94
4314eeeed394 util.rfc3484: New util implementing RFC3484 sorting
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
95 -- Rule 3: Avoid deprecated addresses
4314eeeed394 util.rfc3484: New util implementing RFC3484 sorting
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
96 -- XXX: No way to determine this
4314eeeed394 util.rfc3484: New util implementing RFC3484 sorting
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
97 -- Rule 4: Prefer home addresses
4314eeeed394 util.rfc3484: New util implementing RFC3484 sorting
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
98 -- XXX: Mobility Address related, no way to determine this
4314eeeed394 util.rfc3484: New util implementing RFC3484 sorting
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
99 -- Rule 5: Prefer matching label
4314eeeed394 util.rfc3484: New util implementing RFC3484 sorting
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
100 if ipAsource.label == ipA.label and ipBsource.label ~= ipB.label then
4314eeeed394 util.rfc3484: New util implementing RFC3484 sorting
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
101 return true;
4314eeeed394 util.rfc3484: New util implementing RFC3484 sorting
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
102 elseif ipBsource.label == ipB.label and ipAsource.label ~= ipA.label then
4314eeeed394 util.rfc3484: New util implementing RFC3484 sorting
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
103 return false;
4314eeeed394 util.rfc3484: New util implementing RFC3484 sorting
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
104 end
4314eeeed394 util.rfc3484: New util implementing RFC3484 sorting
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
105
4314eeeed394 util.rfc3484: New util implementing RFC3484 sorting
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
106 -- Rule 6: Prefer higher precedence
4314eeeed394 util.rfc3484: New util implementing RFC3484 sorting
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
107 if ipA.precedence > ipB.precedence then
4314eeeed394 util.rfc3484: New util implementing RFC3484 sorting
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
108 return true;
4314eeeed394 util.rfc3484: New util implementing RFC3484 sorting
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
109 elseif ipA.precedence < ipB.precedence then
4314eeeed394 util.rfc3484: New util implementing RFC3484 sorting
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
110 return false;
4314eeeed394 util.rfc3484: New util implementing RFC3484 sorting
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
111 end
4314eeeed394 util.rfc3484: New util implementing RFC3484 sorting
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
112
4314eeeed394 util.rfc3484: New util implementing RFC3484 sorting
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
113 -- Rule 7: Prefer native transport
4314eeeed394 util.rfc3484: New util implementing RFC3484 sorting
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
114 -- XXX: No way to determine this
4314eeeed394 util.rfc3484: New util implementing RFC3484 sorting
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
115 -- Rule 8: Prefer smaller scope
4314eeeed394 util.rfc3484: New util implementing RFC3484 sorting
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
116 if ipA.scope < ipB.scope then
4314eeeed394 util.rfc3484: New util implementing RFC3484 sorting
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
117 return true;
4314eeeed394 util.rfc3484: New util implementing RFC3484 sorting
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
118 elseif ipA.scope > ipB.scope then
4314eeeed394 util.rfc3484: New util implementing RFC3484 sorting
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
119 return false;
4314eeeed394 util.rfc3484: New util implementing RFC3484 sorting
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
120 end
4314eeeed394 util.rfc3484: New util implementing RFC3484 sorting
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
121
4314eeeed394 util.rfc3484: New util implementing RFC3484 sorting
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
122 -- Rule 9: Use longest matching prefix
4314eeeed394 util.rfc3484: New util implementing RFC3484 sorting
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
123 if commonPrefixLength(ipA, ipAsource) > commonPrefixLength(ipB, ipBsource) then
4314eeeed394 util.rfc3484: New util implementing RFC3484 sorting
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
124 return true;
4314eeeed394 util.rfc3484: New util implementing RFC3484 sorting
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
125 elseif commonPrefixLength(ipA, ipAsource) < commonPrefixLength(ipB, ipBsource) then
4314eeeed394 util.rfc3484: New util implementing RFC3484 sorting
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
126 return false;
4314eeeed394 util.rfc3484: New util implementing RFC3484 sorting
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
127 end
4314eeeed394 util.rfc3484: New util implementing RFC3484 sorting
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
128
4314eeeed394 util.rfc3484: New util implementing RFC3484 sorting
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
129 -- Rule 10: Otherwise, leave order unchanged
4314eeeed394 util.rfc3484: New util implementing RFC3484 sorting
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
130 return true;
4314eeeed394 util.rfc3484: New util implementing RFC3484 sorting
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
131 end
4314eeeed394 util.rfc3484: New util implementing RFC3484 sorting
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
132 for _, ip in ipairs(candidates) do
4314eeeed394 util.rfc3484: New util implementing RFC3484 sorting
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
133 sourceAddrs[ip] = source(ip, sources);
4314eeeed394 util.rfc3484: New util implementing RFC3484 sorting
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
134 end
4314eeeed394 util.rfc3484: New util implementing RFC3484 sorting
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
135
4314eeeed394 util.rfc3484: New util implementing RFC3484 sorting
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
136 t_sort(candidates, comp);
4314eeeed394 util.rfc3484: New util implementing RFC3484 sorting
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
137 return candidates;
4314eeeed394 util.rfc3484: New util implementing RFC3484 sorting
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
138 end
4314eeeed394 util.rfc3484: New util implementing RFC3484 sorting
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
139
4314eeeed394 util.rfc3484: New util implementing RFC3484 sorting
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
140 return {source = source,
4314eeeed394 util.rfc3484: New util implementing RFC3484 sorting
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
141 destination = destination};