prosody
353836684009
util/uuid.lua

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

Software / code / prosody

File

util/uuid.lua @ 12468:353836684009

net.connect: Fix accumulation of connection attempt references Connection attempts that failed the Happy Eyeballs race were not unreferenced and would accumulate. Tested by inspecting the 'pending_connections_map' after establishing s2s with a s2s target where the IPv6 port has a -j DROP rule causing it to time out and the IPv4 attempt wins the race. Expected is that the losing connection stays around until net.server timeouts kick in where it should be removed. The map table should tend towards being empty during idle times.
author Kim Alvefur <zash@zash.se>
date Wed, 20 Apr 2022 22:41:54 +0200
parent 12355:a0ff5c438e9d
child 12975:d10957394a3c
line wrap: on
line source

-- Prosody IM
-- Copyright (C) 2008-2010 Matthew Wild
-- Copyright (C) 2008-2010 Waqas Hussain
--
-- This project is MIT/X11 licensed. Please see the
-- COPYING file in the source package for more information.
--

local random = require "util.random";
local random_bytes = random.bytes;
local hex = require "util.hex".encode;
local m_ceil = math.ceil;

local function get_nibbles(n)
	return hex(random_bytes(m_ceil(n/2))):sub(1, n);
end

local function get_twobits()
	return ("%x"):format(random_bytes(1):byte() % 4 + 8);
end

local function generate()
	-- generate RFC 4122 complaint UUIDs (version 4 - random)
	return get_nibbles(8).."-"..get_nibbles(4).."-4"..get_nibbles(3).."-"..(get_twobits())..get_nibbles(3).."-"..get_nibbles(12);
end

return {
	get_nibbles=get_nibbles;
	generate = generate ;
	-- COMPAT
	seed = random.seed;
};