diff options
Diffstat (limited to 'plugins/mod_s2s/s2sout.lib.lua')
| -rw-r--r-- | plugins/mod_s2s/s2sout.lib.lua | 47 |
1 files changed, 24 insertions, 23 deletions
diff --git a/plugins/mod_s2s/s2sout.lib.lua b/plugins/mod_s2s/s2sout.lib.lua index 5214f4cf..7c6033a3 100644 --- a/plugins/mod_s2s/s2sout.lib.lua +++ b/plugins/mod_s2s/s2sout.lib.lua @@ -18,18 +18,35 @@ local socket = require "socket"; local adns = require "net.adns"; local dns = require "net.dns"; local t_insert, t_sort, ipairs = table.insert, table.sort, ipairs; -local local_addresses = require "util.net".local_addresses; local s2s_destroy_session = require "core.s2smanager".destroy_session; local log = module._log; -local sources = {}; +local anysource = { IPv4 = "0.0.0.0", IPv6 = "::" }; +local function get_sources(addrs) + local sources = {}; + for _, IP in ipairs(addrs) do + local sock; + if IP.proto == "IPv4" then + sock = socket.udp(); + elseif IP.proto == "IPv6" then + sock = socket.udp6(); + end + sock:setpeername(IP.addr, 9); + local localaddr = sock:getsockname() or anysource[IP.proto]; + sock:close(); + if not sources[localaddr] then + sources[localaddr] = true; + t_insert(sources, new_ip(localaddr, IP.proto)); + end + end + return sources; +end local has_ipv4, has_ipv6; local dns_timeout = module:get_option_number("dns_timeout", 15); dns.settimeout(dns_timeout); -local max_dns_depth = module:get_option_number("dns_max_depth", 3); local s2sout = {}; @@ -178,7 +195,7 @@ function s2sout.try_connect(host_session, connect_host, connect_port, err) if have_other_result then if #IPs > 0 then - rfc6724_dest(host_session.ip_hosts, sources); + rfc6724_dest(host_session.ip_hosts, get_sources(host_session.ip_hosts)); for i = 1, #IPs do IPs[i] = {ip = IPs[i], port = connect_port}; end @@ -214,7 +231,7 @@ function s2sout.try_connect(host_session, connect_host, connect_port, err) if have_other_result then if #IPs > 0 then - rfc6724_dest(host_session.ip_hosts, sources); + rfc6724_dest(host_session.ip_hosts, get_sources(host_session.ip_hosts)); for i = 1, #IPs do IPs[i] = {ip = IPs[i], port = connect_port}; end @@ -302,28 +319,12 @@ module:hook_global("service-added", function (event) return; end for source, _ in pairs(s2s_sources) do - if source == "*" or source == "0.0.0.0" then - for _, addr in ipairs(local_addresses("ipv4", true)) do - sources[#sources + 1] = new_ip(addr, "IPv4"); - end - elseif source == "::" then - for _, addr in ipairs(local_addresses("ipv6", true)) do - sources[#sources + 1] = new_ip(addr, "IPv6"); - end - else - sources[#sources + 1] = new_ip(source, (source:find(":") and "IPv6") or "IPv4"); - end - end - for i = 1,#sources do - if sources[i].proto == "IPv6" then + if source:find(":") then has_ipv6 = true; - elseif sources[i].proto == "IPv4" then + else has_ipv4 = true; end end - if not (has_ipv4 or has_ipv6) then - module:log("warn", "No local IPv4 or IPv6 addresses detected, outgoing connections may fail"); - end end); return s2sout; |