Software /
code /
prosody
File
util/rfc6724.lua @ 13028:b2e6a175537d
mod_debug_reset: Don't delay operations until next tick
For some unknown reason, this was required with the old mock util.time
functions prior to 012d6e7b723a.
After 012d6e7b723a, it breaks. So I'm happy to revert to not delaying
anything. This makes tests pass again.
author | Matthew Wild <mwild1@gmail.com> |
---|---|
date | Thu, 06 Apr 2023 14:17:50 +0100 |
parent | 12975:d10957394a3c |
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-- Prosody IM -- Copyright (C) 2011-2013 Florian Zeitz -- -- This project is MIT/X11 licensed. Please see the -- COPYING file in the source package for more information. -- -- This is used to sort destination addresses by preference -- during S2S connections. -- We can't hand this off to getaddrinfo, since it blocks local ip_commonPrefixLength = require"prosody.util.ip".commonPrefixLength local function commonPrefixLength(ipA, ipB) local len = ip_commonPrefixLength(ipA, ipB); return len < 64 and len or 64; end local function t_sort(t, comp) for i = 1, (#t - 1) do for j = (i + 1), #t do local a, b = t[i], t[j]; if not comp(a,b) then t[i], t[j] = b, a; end end end end local function source(dest, candidates) local function comp(ipA, ipB) -- Rule 1: Prefer same address if dest == ipA then return true; elseif dest == ipB then return false; end -- Rule 2: Prefer appropriate scope if ipA.scope < ipB.scope then if ipA.scope < dest.scope then return false; else return true; end elseif ipA.scope > ipB.scope then if ipB.scope < dest.scope then return true; else return false; end end -- Rule 3: Avoid deprecated addresses -- XXX: No way to determine this -- Rule 4: Prefer home addresses -- XXX: Mobility Address related, no way to determine this -- Rule 5: Prefer outgoing interface -- XXX: Interface to address relation. No way to determine this -- Rule 6: Prefer matching label if ipA.label == dest.label and ipB.label ~= dest.label then return true; elseif ipB.label == dest.label and ipA.label ~= dest.label then return false; end -- Rule 7: Prefer temporary addresses (over public ones) -- XXX: No way to determine this -- Rule 8: Use longest matching prefix if commonPrefixLength(ipA, dest) > commonPrefixLength(ipB, dest) then return true; else return false; end end t_sort(candidates, comp); return candidates[1]; end local function destination(candidates, sources) local sourceAddrs = {}; local function comp(ipA, ipB) local ipAsource = sourceAddrs[ipA]; local ipBsource = sourceAddrs[ipB]; -- Rule 1: Avoid unusable destinations -- XXX: No such information -- Rule 2: Prefer matching scope if ipA.scope == ipAsource.scope and ipB.scope ~= ipBsource.scope then return true; elseif ipA.scope ~= ipAsource.scope and ipB.scope == ipBsource.scope then return false; end -- Rule 3: Avoid deprecated addresses -- XXX: No way to determine this -- Rule 4: Prefer home addresses -- XXX: Mobility Address related, no way to determine this -- Rule 5: Prefer matching label if ipAsource.label == ipA.label and ipBsource.label ~= ipB.label then return true; elseif ipBsource.label == ipB.label and ipAsource.label ~= ipA.label then return false; end -- Rule 6: Prefer higher precedence if ipA.precedence > ipB.precedence then return true; elseif ipA.precedence < ipB.precedence then return false; end -- Rule 7: Prefer native transport -- XXX: No way to determine this -- Rule 8: Prefer smaller scope if ipA.scope < ipB.scope then return true; elseif ipA.scope > ipB.scope then return false; end -- Rule 9: Use longest matching prefix if commonPrefixLength(ipA, ipAsource) > commonPrefixLength(ipB, ipBsource) then return true; elseif commonPrefixLength(ipA, ipAsource) < commonPrefixLength(ipB, ipBsource) then return false; end -- Rule 10: Otherwise, leave order unchanged return true; end for _, ip in ipairs(candidates) do sourceAddrs[ip] = source(ip, sources); end t_sort(candidates, comp); return candidates; end return {source = source, destination = destination};