Software `/` code `/` prosody

Annotate

net/dns.lua @ 12095:c1d2bc6603ae

moduleapi: Support stripping of multi-word from module names The goal is to allow module:provides("foo-bar") with a mod_foo_bar_ prefix being stripped. It will break any existing modules that use a prefix and have hyphens instead of underscores. No such modules are known.

author	Matthew Wild <mwild1@gmail.com>
date	Wed, 22 Dec 2021 14:40:42 +0000
parent	10976:540f1bc5f082
child	12387:05c250fa335a

rev	line source
1523 841d61be198f Remove version number from copyright headers Matthew Wild <mwild1@gmail.com> parents: 1202 diff changeset	1 -- Prosody IM
615 4ae3e81513f3 0.1 -> 0.2 Matthew Wild <mwild1@gmail.com> parents: 519 diff changeset	2 -- This file is included with Prosody IM. It has modifications,
4ae3e81513f3 0.1 -> 0.2 Matthew Wild <mwild1@gmail.com> parents: 519 diff changeset	3 -- which are hereby placed in the public domain.
337 4a1dd1c2c219 We have SRV resolving \o/ Matthew Wild <mwild1@gmail.com> parents: diff changeset	4
4a1dd1c2c219 We have SRV resolving \o/ Matthew Wild <mwild1@gmail.com> parents: diff changeset	5
4a1dd1c2c219 We have SRV resolving \o/ Matthew Wild <mwild1@gmail.com> parents: diff changeset	6 -- todo: quick (default) header generation
4a1dd1c2c219 We have SRV resolving \o/ Matthew Wild <mwild1@gmail.com> parents: diff changeset	7 -- todo: nxdomain, error handling
4a1dd1c2c219 We have SRV resolving \o/ Matthew Wild <mwild1@gmail.com> parents: diff changeset	8 -- todo: cache results of encodeName
4a1dd1c2c219 We have SRV resolving \o/ Matthew Wild <mwild1@gmail.com> parents: diff changeset	9
4a1dd1c2c219 We have SRV resolving \o/ Matthew Wild <mwild1@gmail.com> parents: diff changeset	10
4a1dd1c2c219 We have SRV resolving \o/ Matthew Wild <mwild1@gmail.com> parents: diff changeset	11 -- reference: http://tools.ietf.org/html/rfc1035
4a1dd1c2c219 We have SRV resolving \o/ Matthew Wild <mwild1@gmail.com> parents: diff changeset	12 -- reference: http://tools.ietf.org/html/rfc1876 (LOC)
4a1dd1c2c219 We have SRV resolving \o/ Matthew Wild <mwild1@gmail.com> parents: diff changeset	13
4a1dd1c2c219 We have SRV resolving \o/ Matthew Wild <mwild1@gmail.com> parents: diff changeset	14
2069 72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	15 local socket = require "socket";
10664 c2b79b44ded7 net.dns: Handle being loaded outside of Prosody Kim Alvefur <zash@zash.se> parents: 9952 diff changeset	16 local have_timer, timer = pcall(require, "util.timer");
7054 94d5e2f33a10 net.dns: Support IPv6 addresses in resolv.conf [Backported from 0.10] Florian Zeitz <florob@babelmonkeys.de> parents: 6863 diff changeset	17 local new_ip = require "util.ip".new_ip;
8427 1371518f70ff net.dns: Use inet_ntop from util.net if available Kim Alvefur <zash@zash.se> parents: 8263 diff changeset	18 local have_util_net, util_net = pcall(require, "util.net");
3324 070c8ba71b76 net.dns: Handle our own timeouts, including falling onto other servers in resolv.conf if necessary Matthew Wild <mwild1@gmail.com> parents: 3057 diff changeset	19
10955 7bcfac630b65 net.dns: Add some debug logging Matthew Wild <mwild1@gmail.com> parents: 10664 diff changeset	20 local log = require "util.logger".init("dns");
7bcfac630b65 net.dns: Add some debug logging Matthew Wild <mwild1@gmail.com> parents: 10664 diff changeset	21
2067 0ed6369605bf net.dns: Updated to use util.windows.get_nameservers for enumerating nameservers on Windows. Waqas Hussain <waqas20@gmail.com> parents: 2027 diff changeset	22 local _, windows = pcall(require, "util.windows");
0ed6369605bf net.dns: Updated to use util.windows.get_nameservers for enumerating nameservers on Windows. Waqas Hussain <waqas20@gmail.com> parents: 2027 diff changeset	23 local is_windows = (_ and windows) or os.getenv("WINDIR");
337 4a1dd1c2c219 We have SRV resolving \o/ Matthew Wild <mwild1@gmail.com> parents: diff changeset	24
2069 72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	25 local coroutine, io, math, string, table =
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	26 coroutine, io, math, string, table;
337 4a1dd1c2c219 We have SRV resolving \o/ Matthew Wild <mwild1@gmail.com> parents: diff changeset	27
7527 936b78e9f399 net.dns: remove unused variable unpack [luacheck] Anton Shestakov <av6@dwimlabs.net> parents: 7500 diff changeset	28 local ipairs, next, pairs, print, setmetatable, tostring, assert, error, select, type =
936b78e9f399 net.dns: remove unused variable unpack [luacheck] Anton Shestakov <av6@dwimlabs.net> parents: 7500 diff changeset	29 ipairs, next, pairs, print, setmetatable, tostring, assert, error, select, type;
3719 0f87632b87e9 net.dns: Removed dependency on util.ztact by moving ztact.get/set in. Waqas Hussain <waqas20@gmail.com> parents: 3544 diff changeset	30
0f87632b87e9 net.dns: Removed dependency on util.ztact by moving ztact.get/set in. Waqas Hussain <waqas20@gmail.com> parents: 3544 diff changeset	31 local ztact = { -- public domain 20080404 lua@ztact.com
0f87632b87e9 net.dns: Removed dependency on util.ztact by moving ztact.get/set in. Waqas Hussain <waqas20@gmail.com> parents: 3544 diff changeset	32 get = function(parent, ...)
0f87632b87e9 net.dns: Removed dependency on util.ztact by moving ztact.get/set in. Waqas Hussain <waqas20@gmail.com> parents: 3544 diff changeset	33 local len = select('#', ...);
0f87632b87e9 net.dns: Removed dependency on util.ztact by moving ztact.get/set in. Waqas Hussain <waqas20@gmail.com> parents: 3544 diff changeset	34 for i=1,len do
0f87632b87e9 net.dns: Removed dependency on util.ztact by moving ztact.get/set in. Waqas Hussain <waqas20@gmail.com> parents: 3544 diff changeset	35 parent = parent[select(i, ...)];
0f87632b87e9 net.dns: Removed dependency on util.ztact by moving ztact.get/set in. Waqas Hussain <waqas20@gmail.com> parents: 3544 diff changeset	36 if parent == nil then break; end
0f87632b87e9 net.dns: Removed dependency on util.ztact by moving ztact.get/set in. Waqas Hussain <waqas20@gmail.com> parents: 3544 diff changeset	37 end
0f87632b87e9 net.dns: Removed dependency on util.ztact by moving ztact.get/set in. Waqas Hussain <waqas20@gmail.com> parents: 3544 diff changeset	38 return parent;
0f87632b87e9 net.dns: Removed dependency on util.ztact by moving ztact.get/set in. Waqas Hussain <waqas20@gmail.com> parents: 3544 diff changeset	39 end;
0f87632b87e9 net.dns: Removed dependency on util.ztact by moving ztact.get/set in. Waqas Hussain <waqas20@gmail.com> parents: 3544 diff changeset	40 set = function(parent, ...)
0f87632b87e9 net.dns: Removed dependency on util.ztact by moving ztact.get/set in. Waqas Hussain <waqas20@gmail.com> parents: 3544 diff changeset	41 local len = select('#', ...);
0f87632b87e9 net.dns: Removed dependency on util.ztact by moving ztact.get/set in. Waqas Hussain <waqas20@gmail.com> parents: 3544 diff changeset	42 local key, value = select(len-1, ...);
0f87632b87e9 net.dns: Removed dependency on util.ztact by moving ztact.get/set in. Waqas Hussain <waqas20@gmail.com> parents: 3544 diff changeset	43 local cutpoint, cutkey;
0f87632b87e9 net.dns: Removed dependency on util.ztact by moving ztact.get/set in. Waqas Hussain <waqas20@gmail.com> parents: 3544 diff changeset	44
0f87632b87e9 net.dns: Removed dependency on util.ztact by moving ztact.get/set in. Waqas Hussain <waqas20@gmail.com> parents: 3544 diff changeset	45 for i=1,len-2 do
0f87632b87e9 net.dns: Removed dependency on util.ztact by moving ztact.get/set in. Waqas Hussain <waqas20@gmail.com> parents: 3544 diff changeset	46 local key = select (i, ...)
0f87632b87e9 net.dns: Removed dependency on util.ztact by moving ztact.get/set in. Waqas Hussain <waqas20@gmail.com> parents: 3544 diff changeset	47 local child = parent[key]
337 4a1dd1c2c219 We have SRV resolving \o/ Matthew Wild <mwild1@gmail.com> parents: diff changeset	48
3719 0f87632b87e9 net.dns: Removed dependency on util.ztact by moving ztact.get/set in. Waqas Hussain <waqas20@gmail.com> parents: 3544 diff changeset	49 if value == nil then
0f87632b87e9 net.dns: Removed dependency on util.ztact by moving ztact.get/set in. Waqas Hussain <waqas20@gmail.com> parents: 3544 diff changeset	50 if child == nil then
0f87632b87e9 net.dns: Removed dependency on util.ztact by moving ztact.get/set in. Waqas Hussain <waqas20@gmail.com> parents: 3544 diff changeset	51 return;
0f87632b87e9 net.dns: Removed dependency on util.ztact by moving ztact.get/set in. Waqas Hussain <waqas20@gmail.com> parents: 3544 diff changeset	52 elseif next(child, next(child)) then
0f87632b87e9 net.dns: Removed dependency on util.ztact by moving ztact.get/set in. Waqas Hussain <waqas20@gmail.com> parents: 3544 diff changeset	53 cutpoint = nil; cutkey = nil;
0f87632b87e9 net.dns: Removed dependency on util.ztact by moving ztact.get/set in. Waqas Hussain <waqas20@gmail.com> parents: 3544 diff changeset	54 elseif cutpoint == nil then
0f87632b87e9 net.dns: Removed dependency on util.ztact by moving ztact.get/set in. Waqas Hussain <waqas20@gmail.com> parents: 3544 diff changeset	55 cutpoint = parent; cutkey = key;
0f87632b87e9 net.dns: Removed dependency on util.ztact by moving ztact.get/set in. Waqas Hussain <waqas20@gmail.com> parents: 3544 diff changeset	56 end
0f87632b87e9 net.dns: Removed dependency on util.ztact by moving ztact.get/set in. Waqas Hussain <waqas20@gmail.com> parents: 3544 diff changeset	57 elseif child == nil then
0f87632b87e9 net.dns: Removed dependency on util.ztact by moving ztact.get/set in. Waqas Hussain <waqas20@gmail.com> parents: 3544 diff changeset	58 child = {};
0f87632b87e9 net.dns: Removed dependency on util.ztact by moving ztact.get/set in. Waqas Hussain <waqas20@gmail.com> parents: 3544 diff changeset	59 parent[key] = child;
0f87632b87e9 net.dns: Removed dependency on util.ztact by moving ztact.get/set in. Waqas Hussain <waqas20@gmail.com> parents: 3544 diff changeset	60 end
0f87632b87e9 net.dns: Removed dependency on util.ztact by moving ztact.get/set in. Waqas Hussain <waqas20@gmail.com> parents: 3544 diff changeset	61 parent = child
0f87632b87e9 net.dns: Removed dependency on util.ztact by moving ztact.get/set in. Waqas Hussain <waqas20@gmail.com> parents: 3544 diff changeset	62 end
0f87632b87e9 net.dns: Removed dependency on util.ztact by moving ztact.get/set in. Waqas Hussain <waqas20@gmail.com> parents: 3544 diff changeset	63
0f87632b87e9 net.dns: Removed dependency on util.ztact by moving ztact.get/set in. Waqas Hussain <waqas20@gmail.com> parents: 3544 diff changeset	64 if value == nil and cutpoint then
0f87632b87e9 net.dns: Removed dependency on util.ztact by moving ztact.get/set in. Waqas Hussain <waqas20@gmail.com> parents: 3544 diff changeset	65 cutpoint[cutkey] = nil;
0f87632b87e9 net.dns: Removed dependency on util.ztact by moving ztact.get/set in. Waqas Hussain <waqas20@gmail.com> parents: 3544 diff changeset	66 else
0f87632b87e9 net.dns: Removed dependency on util.ztact by moving ztact.get/set in. Waqas Hussain <waqas20@gmail.com> parents: 3544 diff changeset	67 parent[key] = value;
0f87632b87e9 net.dns: Removed dependency on util.ztact by moving ztact.get/set in. Waqas Hussain <waqas20@gmail.com> parents: 3544 diff changeset	68 return value;
0f87632b87e9 net.dns: Removed dependency on util.ztact by moving ztact.get/set in. Waqas Hussain <waqas20@gmail.com> parents: 3544 diff changeset	69 end
0f87632b87e9 net.dns: Removed dependency on util.ztact by moving ztact.get/set in. Waqas Hussain <waqas20@gmail.com> parents: 3544 diff changeset	70 end;
0f87632b87e9 net.dns: Removed dependency on util.ztact by moving ztact.get/set in. Waqas Hussain <waqas20@gmail.com> parents: 3544 diff changeset	71 };
2069 72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	72 local get, set = ztact.get, ztact.set;
337 4a1dd1c2c219 We have SRV resolving \o/ Matthew Wild <mwild1@gmail.com> parents: diff changeset	73
10959 877ceb4feb6d net.dns: Reduce default timeout to 5s Matthew Wild <mwild1@gmail.com> parents: 10958 diff changeset	74 local default_timeout = 5;
10957 8902cecbdd39 net.dns: Add jitter to spread queries and reduce failures due to congestion Matthew Wild <mwild1@gmail.com> parents: 10956 diff changeset	75 local default_jitter = 1;
8902cecbdd39 net.dns: Add jitter to spread queries and reduce failures due to congestion Matthew Wild <mwild1@gmail.com> parents: 10956 diff changeset	76 local default_retry_jitter = 2;
337 4a1dd1c2c219 We have SRV resolving \o/ Matthew Wild <mwild1@gmail.com> parents: diff changeset	77
4a1dd1c2c219 We have SRV resolving \o/ Matthew Wild <mwild1@gmail.com> parents: diff changeset	78 -------------------------------------------------- module dns
6780 647adfd8f738 net.: Remove use of module() function Kim Alvefur <zash@zash.se>* parents: 6753 diff changeset	79 local _ENV = nil;
8555 4f0f5b49bb03 vairious: Add annotation when an empty environment is set [luacheck] Kim Alvefur <zash@zash.se> parents: 8440 diff changeset	80 -- luacheck: std none
6780 647adfd8f738 net.: Remove use of module() function Kim Alvefur <zash@zash.se>* parents: 6753 diff changeset	81 local dns = {};
337 4a1dd1c2c219 We have SRV resolving \o/ Matthew Wild <mwild1@gmail.com> parents: diff changeset	82
4a1dd1c2c219 We have SRV resolving \o/ Matthew Wild <mwild1@gmail.com> parents: diff changeset	83
4a1dd1c2c219 We have SRV resolving \o/ Matthew Wild <mwild1@gmail.com> parents: diff changeset	84 -- dns type & class codes ------------------------------ dns type & class codes
4a1dd1c2c219 We have SRV resolving \o/ Matthew Wild <mwild1@gmail.com> parents: diff changeset	85
4a1dd1c2c219 We have SRV resolving \o/ Matthew Wild <mwild1@gmail.com> parents: diff changeset	86
4a1dd1c2c219 We have SRV resolving \o/ Matthew Wild <mwild1@gmail.com> parents: diff changeset	87 local append = table.insert
4a1dd1c2c219 We have SRV resolving \o/ Matthew Wild <mwild1@gmail.com> parents: diff changeset	88
4a1dd1c2c219 We have SRV resolving \o/ Matthew Wild <mwild1@gmail.com> parents: diff changeset	89
2069 72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	90 local function highbyte(i) -- - - - - - - - - - - - - - - - - - - highbyte
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	91 return (i-(i%0x100))/0x100;
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	92 end
337 4a1dd1c2c219 We have SRV resolving \o/ Matthew Wild <mwild1@gmail.com> parents: diff changeset	93
4a1dd1c2c219 We have SRV resolving \o/ Matthew Wild <mwild1@gmail.com> parents: diff changeset	94
8908 144666d0ad2f net.dns: Lazily generate unknown RR type names Kim Alvefur <zash@zash.se> parents: 8907 diff changeset	95 local function augment (t, prefix) -- - - - - - - - - - - - - - - - - augment
2069 72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	96 local a = {};
8907 b7b960d30eef Backed out changeset eae606b9266c: Used a lot of memory Kim Alvefur <zash@zash.se> parents: 8901 diff changeset	97 for i,s in pairs(t) do
2069 72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	98 a[i] = s;
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	99 a[s] = s;
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	100 a[string.lower(s)] = s;
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	101 end
8908 144666d0ad2f net.dns: Lazily generate unknown RR type names Kim Alvefur <zash@zash.se> parents: 8907 diff changeset	102 setmetatable(a, {
144666d0ad2f net.dns: Lazily generate unknown RR type names Kim Alvefur <zash@zash.se> parents: 8907 diff changeset	103 __index = function (_, i)
144666d0ad2f net.dns: Lazily generate unknown RR type names Kim Alvefur <zash@zash.se> parents: 8907 diff changeset	104 if type(i) == "number" then
144666d0ad2f net.dns: Lazily generate unknown RR type names Kim Alvefur <zash@zash.se> parents: 8907 diff changeset	105 return ("%s%d"):format(prefix, i);
144666d0ad2f net.dns: Lazily generate unknown RR type names Kim Alvefur <zash@zash.se> parents: 8907 diff changeset	106 elseif type(i) == "string" then
144666d0ad2f net.dns: Lazily generate unknown RR type names Kim Alvefur <zash@zash.se> parents: 8907 diff changeset	107 return i:upper();
144666d0ad2f net.dns: Lazily generate unknown RR type names Kim Alvefur <zash@zash.se> parents: 8907 diff changeset	108 end
144666d0ad2f net.dns: Lazily generate unknown RR type names Kim Alvefur <zash@zash.se> parents: 8907 diff changeset	109 end;
144666d0ad2f net.dns: Lazily generate unknown RR type names Kim Alvefur <zash@zash.se> parents: 8907 diff changeset	110 })
2069 72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	111 return a;
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	112 end
337 4a1dd1c2c219 We have SRV resolving \o/ Matthew Wild <mwild1@gmail.com> parents: diff changeset	113
4a1dd1c2c219 We have SRV resolving \o/ Matthew Wild <mwild1@gmail.com> parents: diff changeset	114
4a1dd1c2c219 We have SRV resolving \o/ Matthew Wild <mwild1@gmail.com> parents: diff changeset	115 local function encode (t) -- - - - - - - - - - - - - - - - - - - - - encode
2069 72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	116 local code = {};
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	117 for i,s in pairs(t) do
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	118 local word = string.char(highbyte(i), i%0x100);
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	119 code[i] = word;
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	120 code[s] = word;
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	121 code[string.lower(s)] = word;
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	122 end
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	123 return code;
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	124 end
337 4a1dd1c2c219 We have SRV resolving \o/ Matthew Wild <mwild1@gmail.com> parents: diff changeset	125
4a1dd1c2c219 We have SRV resolving \o/ Matthew Wild <mwild1@gmail.com> parents: diff changeset	126
4a1dd1c2c219 We have SRV resolving \o/ Matthew Wild <mwild1@gmail.com> parents: diff changeset	127 dns.types = {
8903 c5d5dfaa8d38 net.dns: Expand table of known RR types from IANA registry Kim Alvefur <zash@zash.se> parents: 8902 diff changeset	128 [1] = "A", -- a host address,[RFC1035],,
c5d5dfaa8d38 net.dns: Expand table of known RR types from IANA registry Kim Alvefur <zash@zash.se> parents: 8902 diff changeset	129 [2] = "NS", -- an authoritative name server,[RFC1035],,
c5d5dfaa8d38 net.dns: Expand table of known RR types from IANA registry Kim Alvefur <zash@zash.se> parents: 8902 diff changeset	130 [3] = "MD", -- a mail destination (OBSOLETE - use MX),[RFC1035],,
c5d5dfaa8d38 net.dns: Expand table of known RR types from IANA registry Kim Alvefur <zash@zash.se> parents: 8902 diff changeset	131 [4] = "MF", -- a mail forwarder (OBSOLETE - use MX),[RFC1035],,
c5d5dfaa8d38 net.dns: Expand table of known RR types from IANA registry Kim Alvefur <zash@zash.se> parents: 8902 diff changeset	132 [5] = "CNAME", -- the canonical name for an alias,[RFC1035],,
c5d5dfaa8d38 net.dns: Expand table of known RR types from IANA registry Kim Alvefur <zash@zash.se> parents: 8902 diff changeset	133 [6] = "SOA", -- marks the start of a zone of authority,[RFC1035],,
c5d5dfaa8d38 net.dns: Expand table of known RR types from IANA registry Kim Alvefur <zash@zash.se> parents: 8902 diff changeset	134 [7] = "MB", -- a mailbox domain name (EXPERIMENTAL),[RFC1035],,
c5d5dfaa8d38 net.dns: Expand table of known RR types from IANA registry Kim Alvefur <zash@zash.se> parents: 8902 diff changeset	135 [8] = "MG", -- a mail group member (EXPERIMENTAL),[RFC1035],,
c5d5dfaa8d38 net.dns: Expand table of known RR types from IANA registry Kim Alvefur <zash@zash.se> parents: 8902 diff changeset	136 [9] = "MR", -- a mail rename domain name (EXPERIMENTAL),[RFC1035],,
c5d5dfaa8d38 net.dns: Expand table of known RR types from IANA registry Kim Alvefur <zash@zash.se> parents: 8902 diff changeset	137 [10] = "NULL", -- a null RR (EXPERIMENTAL),[RFC1035],,
c5d5dfaa8d38 net.dns: Expand table of known RR types from IANA registry Kim Alvefur <zash@zash.se> parents: 8902 diff changeset	138 [11] = "WKS", -- a well known service description,[RFC1035],,
c5d5dfaa8d38 net.dns: Expand table of known RR types from IANA registry Kim Alvefur <zash@zash.se> parents: 8902 diff changeset	139 [12] = "PTR", -- a domain name pointer,[RFC1035],,
c5d5dfaa8d38 net.dns: Expand table of known RR types from IANA registry Kim Alvefur <zash@zash.se> parents: 8902 diff changeset	140 [13] = "HINFO", -- host information,[RFC1035],,
c5d5dfaa8d38 net.dns: Expand table of known RR types from IANA registry Kim Alvefur <zash@zash.se> parents: 8902 diff changeset	141 [14] = "MINFO", -- mailbox or mail list information,[RFC1035],,
c5d5dfaa8d38 net.dns: Expand table of known RR types from IANA registry Kim Alvefur <zash@zash.se> parents: 8902 diff changeset	142 [15] = "MX", -- mail exchange,[RFC1035],,
c5d5dfaa8d38 net.dns: Expand table of known RR types from IANA registry Kim Alvefur <zash@zash.se> parents: 8902 diff changeset	143 [16] = "TXT", -- text strings,[RFC1035],,
c5d5dfaa8d38 net.dns: Expand table of known RR types from IANA registry Kim Alvefur <zash@zash.se> parents: 8902 diff changeset	144 [17] = "RP", -- for Responsible Person,[RFC1183],,
c5d5dfaa8d38 net.dns: Expand table of known RR types from IANA registry Kim Alvefur <zash@zash.se> parents: 8902 diff changeset	145 [18] = "AFSDB", -- for AFS Data Base location,[RFC1183][RFC5864],,
c5d5dfaa8d38 net.dns: Expand table of known RR types from IANA registry Kim Alvefur <zash@zash.se> parents: 8902 diff changeset	146 [19] = "X25", -- for X.25 PSDN address,[RFC1183],,
c5d5dfaa8d38 net.dns: Expand table of known RR types from IANA registry Kim Alvefur <zash@zash.se> parents: 8902 diff changeset	147 [20] = "ISDN", -- for ISDN address,[RFC1183],,
c5d5dfaa8d38 net.dns: Expand table of known RR types from IANA registry Kim Alvefur <zash@zash.se> parents: 8902 diff changeset	148 [21] = "RT", -- for Route Through,[RFC1183],,
c5d5dfaa8d38 net.dns: Expand table of known RR types from IANA registry Kim Alvefur <zash@zash.se> parents: 8902 diff changeset	149 [22] = "NSAP", -- "for NSAP address, NSAP style A record",[RFC1706],,
c5d5dfaa8d38 net.dns: Expand table of known RR types from IANA registry Kim Alvefur <zash@zash.se> parents: 8902 diff changeset	150 [23] = "NSAP-PTR", -- "for domain name pointer, NSAP style",[RFC1348][RFC1637][RFC1706],,
c5d5dfaa8d38 net.dns: Expand table of known RR types from IANA registry Kim Alvefur <zash@zash.se> parents: 8902 diff changeset	151 [24] = "SIG", -- for security signature,[RFC4034][RFC3755][RFC2535][RFC2536][RFC2537][RFC2931][RFC3110][RFC3008],,
c5d5dfaa8d38 net.dns: Expand table of known RR types from IANA registry Kim Alvefur <zash@zash.se> parents: 8902 diff changeset	152 [25] = "KEY", -- for security key,[RFC4034][RFC3755][RFC2535][RFC2536][RFC2537][RFC2539][RFC3008][RFC3110],,
c5d5dfaa8d38 net.dns: Expand table of known RR types from IANA registry Kim Alvefur <zash@zash.se> parents: 8902 diff changeset	153 [26] = "PX", -- X.400 mail mapping information,[RFC2163],,
c5d5dfaa8d38 net.dns: Expand table of known RR types from IANA registry Kim Alvefur <zash@zash.se> parents: 8902 diff changeset	154 [27] = "GPOS", -- Geographical Position,[RFC1712],,
c5d5dfaa8d38 net.dns: Expand table of known RR types from IANA registry Kim Alvefur <zash@zash.se> parents: 8902 diff changeset	155 [28] = "AAAA", -- IP6 Address,[RFC3596],,
c5d5dfaa8d38 net.dns: Expand table of known RR types from IANA registry Kim Alvefur <zash@zash.se> parents: 8902 diff changeset	156 [29] = "LOC", -- Location Information,[RFC1876],,
c5d5dfaa8d38 net.dns: Expand table of known RR types from IANA registry Kim Alvefur <zash@zash.se> parents: 8902 diff changeset	157 [30] = "NXT", -- Next Domain (OBSOLETE),[RFC3755][RFC2535],,
c5d5dfaa8d38 net.dns: Expand table of known RR types from IANA registry Kim Alvefur <zash@zash.se> parents: 8902 diff changeset	158 [31] = "EID", -- Endpoint Identifier,[Michael_Patton][http://ana-3.lcs.mit.edu/~jnc/nimrod/dns.txt],,1995-06
c5d5dfaa8d38 net.dns: Expand table of known RR types from IANA registry Kim Alvefur <zash@zash.se> parents: 8902 diff changeset	159 [32] = "NIMLOC", -- Nimrod Locator,[1][Michael_Patton][http://ana-3.lcs.mit.edu/~jnc/nimrod/dns.txt],,1995-06
c5d5dfaa8d38 net.dns: Expand table of known RR types from IANA registry Kim Alvefur <zash@zash.se> parents: 8902 diff changeset	160 [33] = "SRV", -- Server Selection,[1][RFC2782],,
c5d5dfaa8d38 net.dns: Expand table of known RR types from IANA registry Kim Alvefur <zash@zash.se> parents: 8902 diff changeset	161 [34] = "ATMA", -- ATM Address,"[ ATM Forum Technical Committee, ""ATM Name System, V2.0"", Doc ID: AF-DANS-0152.000, July 2000. Available from and held in escrow by IANA.]",,
c5d5dfaa8d38 net.dns: Expand table of known RR types from IANA registry Kim Alvefur <zash@zash.se> parents: 8902 diff changeset	162 [35] = "NAPTR", -- Naming Authority Pointer,[RFC2915][RFC2168][RFC3403],,
c5d5dfaa8d38 net.dns: Expand table of known RR types from IANA registry Kim Alvefur <zash@zash.se> parents: 8902 diff changeset	163 [36] = "KX", -- Key Exchanger,[RFC2230],,
c5d5dfaa8d38 net.dns: Expand table of known RR types from IANA registry Kim Alvefur <zash@zash.se> parents: 8902 diff changeset	164 [37] = "CERT", -- CERT,[RFC4398],,
c5d5dfaa8d38 net.dns: Expand table of known RR types from IANA registry Kim Alvefur <zash@zash.se> parents: 8902 diff changeset	165 [38] = "A6", -- A6 (OBSOLETE - use AAAA),[RFC3226][RFC2874][RFC6563],,
c5d5dfaa8d38 net.dns: Expand table of known RR types from IANA registry Kim Alvefur <zash@zash.se> parents: 8902 diff changeset	166 [39] = "DNAME", -- DNAME,[RFC6672],,
c5d5dfaa8d38 net.dns: Expand table of known RR types from IANA registry Kim Alvefur <zash@zash.se> parents: 8902 diff changeset	167 [40] = "SINK", -- SINK,[Donald_E_Eastlake][http://tools.ietf.org/html/draft-eastlake-kitchen-sink],,1997-11
c5d5dfaa8d38 net.dns: Expand table of known RR types from IANA registry Kim Alvefur <zash@zash.se> parents: 8902 diff changeset	168 [41] = "OPT", -- OPT,[RFC6891][RFC3225],,
c5d5dfaa8d38 net.dns: Expand table of known RR types from IANA registry Kim Alvefur <zash@zash.se> parents: 8902 diff changeset	169 [42] = "APL", -- APL,[RFC3123],,
c5d5dfaa8d38 net.dns: Expand table of known RR types from IANA registry Kim Alvefur <zash@zash.se> parents: 8902 diff changeset	170 [43] = "DS", -- Delegation Signer,[RFC4034][RFC3658],,
c5d5dfaa8d38 net.dns: Expand table of known RR types from IANA registry Kim Alvefur <zash@zash.se> parents: 8902 diff changeset	171 [44] = "SSHFP", -- SSH Key Fingerprint,[RFC4255],,
c5d5dfaa8d38 net.dns: Expand table of known RR types from IANA registry Kim Alvefur <zash@zash.se> parents: 8902 diff changeset	172 [45] = "IPSECKEY", -- IPSECKEY,[RFC4025],,
c5d5dfaa8d38 net.dns: Expand table of known RR types from IANA registry Kim Alvefur <zash@zash.se> parents: 8902 diff changeset	173 [46] = "RRSIG", -- RRSIG,[RFC4034][RFC3755],,
c5d5dfaa8d38 net.dns: Expand table of known RR types from IANA registry Kim Alvefur <zash@zash.se> parents: 8902 diff changeset	174 [47] = "NSEC", -- NSEC,[RFC4034][RFC3755],,
c5d5dfaa8d38 net.dns: Expand table of known RR types from IANA registry Kim Alvefur <zash@zash.se> parents: 8902 diff changeset	175 [48] = "DNSKEY", -- DNSKEY,[RFC4034][RFC3755],,
c5d5dfaa8d38 net.dns: Expand table of known RR types from IANA registry Kim Alvefur <zash@zash.se> parents: 8902 diff changeset	176 [49] = "DHCID", -- DHCID,[RFC4701],,
c5d5dfaa8d38 net.dns: Expand table of known RR types from IANA registry Kim Alvefur <zash@zash.se> parents: 8902 diff changeset	177 [50] = "NSEC3", -- NSEC3,[RFC5155],,
c5d5dfaa8d38 net.dns: Expand table of known RR types from IANA registry Kim Alvefur <zash@zash.se> parents: 8902 diff changeset	178 [51] = "NSEC3PARAM", -- NSEC3PARAM,[RFC5155],,
c5d5dfaa8d38 net.dns: Expand table of known RR types from IANA registry Kim Alvefur <zash@zash.se> parents: 8902 diff changeset	179 [52] = "TLSA", -- TLSA,[RFC6698],,
c5d5dfaa8d38 net.dns: Expand table of known RR types from IANA registry Kim Alvefur <zash@zash.se> parents: 8902 diff changeset	180 [53] = "SMIMEA", -- S/MIME cert association,[RFC8162],SMIMEA/smimea-completed-template,2015-12-01
c5d5dfaa8d38 net.dns: Expand table of known RR types from IANA registry Kim Alvefur <zash@zash.se> parents: 8902 diff changeset	181 -- [54] = "Unassigned", -- ,,,
c5d5dfaa8d38 net.dns: Expand table of known RR types from IANA registry Kim Alvefur <zash@zash.se> parents: 8902 diff changeset	182 [55] = "HIP", -- Host Identity Protocol,[RFC8005],,
c5d5dfaa8d38 net.dns: Expand table of known RR types from IANA registry Kim Alvefur <zash@zash.se> parents: 8902 diff changeset	183 [56] = "NINFO", -- NINFO,[Jim_Reid],NINFO/ninfo-completed-template,2008-01-21
c5d5dfaa8d38 net.dns: Expand table of known RR types from IANA registry Kim Alvefur <zash@zash.se> parents: 8902 diff changeset	184 [57] = "RKEY", -- RKEY,[Jim_Reid],RKEY/rkey-completed-template,2008-01-21
c5d5dfaa8d38 net.dns: Expand table of known RR types from IANA registry Kim Alvefur <zash@zash.se> parents: 8902 diff changeset	185 [58] = "TALINK", -- Trust Anchor LINK,[Wouter_Wijngaards],TALINK/talink-completed-template,2010-02-17
c5d5dfaa8d38 net.dns: Expand table of known RR types from IANA registry Kim Alvefur <zash@zash.se> parents: 8902 diff changeset	186 [59] = "CDS", -- Child DS,[RFC7344],CDS/cds-completed-template,2011-06-06
c5d5dfaa8d38 net.dns: Expand table of known RR types from IANA registry Kim Alvefur <zash@zash.se> parents: 8902 diff changeset	187 [60] = "CDNSKEY", -- DNSKEY(s) the Child wants reflected in DS,[RFC7344],,2014-06-16
c5d5dfaa8d38 net.dns: Expand table of known RR types from IANA registry Kim Alvefur <zash@zash.se> parents: 8902 diff changeset	188 [61] = "OPENPGPKEY", -- OpenPGP Key,[RFC7929],OPENPGPKEY/openpgpkey-completed-template,2014-08-12
c5d5dfaa8d38 net.dns: Expand table of known RR types from IANA registry Kim Alvefur <zash@zash.se> parents: 8902 diff changeset	189 [62] = "CSYNC", -- Child-To-Parent Synchronization,[RFC7477],,2015-01-27
c5d5dfaa8d38 net.dns: Expand table of known RR types from IANA registry Kim Alvefur <zash@zash.se> parents: 8902 diff changeset	190 -- [63 .. 98] = "Unassigned", -- ,,,
c5d5dfaa8d38 net.dns: Expand table of known RR types from IANA registry Kim Alvefur <zash@zash.se> parents: 8902 diff changeset	191 [99] = "SPF", -- ,[RFC7208],,
c5d5dfaa8d38 net.dns: Expand table of known RR types from IANA registry Kim Alvefur <zash@zash.se> parents: 8902 diff changeset	192 [100] = "UINFO", -- ,[IANA-Reserved],,
c5d5dfaa8d38 net.dns: Expand table of known RR types from IANA registry Kim Alvefur <zash@zash.se> parents: 8902 diff changeset	193 [101] = "UID", -- ,[IANA-Reserved],,
c5d5dfaa8d38 net.dns: Expand table of known RR types from IANA registry Kim Alvefur <zash@zash.se> parents: 8902 diff changeset	194 [102] = "GID", -- ,[IANA-Reserved],,
c5d5dfaa8d38 net.dns: Expand table of known RR types from IANA registry Kim Alvefur <zash@zash.se> parents: 8902 diff changeset	195 [103] = "UNSPEC", -- ,[IANA-Reserved],,
c5d5dfaa8d38 net.dns: Expand table of known RR types from IANA registry Kim Alvefur <zash@zash.se> parents: 8902 diff changeset	196 [104] = "NID", -- ,[RFC6742],ILNP/nid-completed-template,
c5d5dfaa8d38 net.dns: Expand table of known RR types from IANA registry Kim Alvefur <zash@zash.se> parents: 8902 diff changeset	197 [105] = "L32", -- ,[RFC6742],ILNP/l32-completed-template,
c5d5dfaa8d38 net.dns: Expand table of known RR types from IANA registry Kim Alvefur <zash@zash.se> parents: 8902 diff changeset	198 [106] = "L64", -- ,[RFC6742],ILNP/l64-completed-template,
c5d5dfaa8d38 net.dns: Expand table of known RR types from IANA registry Kim Alvefur <zash@zash.se> parents: 8902 diff changeset	199 [107] = "LP", -- ,[RFC6742],ILNP/lp-completed-template,
c5d5dfaa8d38 net.dns: Expand table of known RR types from IANA registry Kim Alvefur <zash@zash.se> parents: 8902 diff changeset	200 [108] = "EUI48", -- an EUI-48 address,[RFC7043],EUI48/eui48-completed-template,2013-03-27
c5d5dfaa8d38 net.dns: Expand table of known RR types from IANA registry Kim Alvefur <zash@zash.se> parents: 8902 diff changeset	201 [109] = "EUI64", -- an EUI-64 address,[RFC7043],EUI64/eui64-completed-template,2013-03-27
c5d5dfaa8d38 net.dns: Expand table of known RR types from IANA registry Kim Alvefur <zash@zash.se> parents: 8902 diff changeset	202 -- [110 .. 248] = "Unassigned", -- ,,,
c5d5dfaa8d38 net.dns: Expand table of known RR types from IANA registry Kim Alvefur <zash@zash.se> parents: 8902 diff changeset	203 [249] = "TKEY", -- Transaction Key,[RFC2930],,
c5d5dfaa8d38 net.dns: Expand table of known RR types from IANA registry Kim Alvefur <zash@zash.se> parents: 8902 diff changeset	204 [250] = "TSIG", -- Transaction Signature,[RFC2845],,
c5d5dfaa8d38 net.dns: Expand table of known RR types from IANA registry Kim Alvefur <zash@zash.se> parents: 8902 diff changeset	205 [251] = "IXFR", -- incremental transfer,[RFC1995],,
c5d5dfaa8d38 net.dns: Expand table of known RR types from IANA registry Kim Alvefur <zash@zash.se> parents: 8902 diff changeset	206 [252] = "AXFR", -- transfer of an entire zone,[RFC1035][RFC5936],,
c5d5dfaa8d38 net.dns: Expand table of known RR types from IANA registry Kim Alvefur <zash@zash.se> parents: 8902 diff changeset	207 [253] = "MAILB", -- "mailbox-related RRs (MB, MG or MR)",[RFC1035],,
c5d5dfaa8d38 net.dns: Expand table of known RR types from IANA registry Kim Alvefur <zash@zash.se> parents: 8902 diff changeset	208 [254] = "MAILA", -- mail agent RRs (OBSOLETE - see MX),[RFC1035],,
c5d5dfaa8d38 net.dns: Expand table of known RR types from IANA registry Kim Alvefur <zash@zash.se> parents: 8902 diff changeset	209 [255] = "*", -- A request for all records the server/cache has available,[RFC1035][RFC6895],,
c5d5dfaa8d38 net.dns: Expand table of known RR types from IANA registry Kim Alvefur <zash@zash.se> parents: 8902 diff changeset	210 [256] = "URI", -- URI,[RFC7553],URI/uri-completed-template,2011-02-22
c5d5dfaa8d38 net.dns: Expand table of known RR types from IANA registry Kim Alvefur <zash@zash.se> parents: 8902 diff changeset	211 [257] = "CAA", -- Certification Authority Restriction,[RFC6844],CAA/caa-completed-template,2011-04-07
c5d5dfaa8d38 net.dns: Expand table of known RR types from IANA registry Kim Alvefur <zash@zash.se> parents: 8902 diff changeset	212 [258] = "AVC", -- Application Visibility and Control,[Wolfgang_Riedel],AVC/avc-completed-template,2016-02-26
c5d5dfaa8d38 net.dns: Expand table of known RR types from IANA registry Kim Alvefur <zash@zash.se> parents: 8902 diff changeset	213 [259] = "DOA", -- Digital Object Architecture,[draft-durand-doa-over-dns],DOA/doa-completed-template,2017-08-30
c5d5dfaa8d38 net.dns: Expand table of known RR types from IANA registry Kim Alvefur <zash@zash.se> parents: 8902 diff changeset	214 -- [260 .. 32767] = "Unassigned", -- ,,,
c5d5dfaa8d38 net.dns: Expand table of known RR types from IANA registry Kim Alvefur <zash@zash.se> parents: 8902 diff changeset	215 [32768] = "TA", -- DNSSEC Trust Authorities,"[Sam_Weiler][http://cameo.library.cmu.edu/][ Deploying DNSSEC Without a Signed Root. Technical Report 1999-19, Information Networking Institute, Carnegie Mellon University, April 2004.]",,2005-12-13
c5d5dfaa8d38 net.dns: Expand table of known RR types from IANA registry Kim Alvefur <zash@zash.se> parents: 8902 diff changeset	216 [32769] = "DLV", -- DNSSEC Lookaside Validation,[RFC4431],,
c5d5dfaa8d38 net.dns: Expand table of known RR types from IANA registry Kim Alvefur <zash@zash.se> parents: 8902 diff changeset	217 -- [32770 .. 65279] = "Unassigned", -- ,,,
c5d5dfaa8d38 net.dns: Expand table of known RR types from IANA registry Kim Alvefur <zash@zash.se> parents: 8902 diff changeset	218 -- [65280 .. 65534] = "Private use", -- ,,,
c5d5dfaa8d38 net.dns: Expand table of known RR types from IANA registry Kim Alvefur <zash@zash.se> parents: 8902 diff changeset	219 -- [65535] = "Reserved", -- ,,,
c5d5dfaa8d38 net.dns: Expand table of known RR types from IANA registry Kim Alvefur <zash@zash.se> parents: 8902 diff changeset	220 }
337 4a1dd1c2c219 We have SRV resolving \o/ Matthew Wild <mwild1@gmail.com> parents: diff changeset	221
2069 72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	222 dns.classes = { 'IN', 'CS', 'CH', 'HS', [255] = '*' };
337 4a1dd1c2c219 We have SRV resolving \o/ Matthew Wild <mwild1@gmail.com> parents: diff changeset	223
4a1dd1c2c219 We have SRV resolving \o/ Matthew Wild <mwild1@gmail.com> parents: diff changeset	224
8908 144666d0ad2f net.dns: Lazily generate unknown RR type names Kim Alvefur <zash@zash.se> parents: 8907 diff changeset	225 dns.type = augment (dns.types, "TYPE");
144666d0ad2f net.dns: Lazily generate unknown RR type names Kim Alvefur <zash@zash.se> parents: 8907 diff changeset	226 dns.class = augment (dns.classes, "CLASS");
2069 72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	227 dns.typecode = encode (dns.types);
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	228 dns.classcode = encode (dns.classes);
337 4a1dd1c2c219 We have SRV resolving \o/ Matthew Wild <mwild1@gmail.com> parents: diff changeset	229
4a1dd1c2c219 We have SRV resolving \o/ Matthew Wild <mwild1@gmail.com> parents: diff changeset	230
4a1dd1c2c219 We have SRV resolving \o/ Matthew Wild <mwild1@gmail.com> parents: diff changeset	231
2069 72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	232 local function standardize(qname, qtype, qclass) -- - - - - - - standardize
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	233 if string.byte(qname, -1) ~= 0x2E then qname = qname..'.'; end
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	234 qname = string.lower(qname);
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	235 return qname, dns.type[qtype or 'A'], dns.class[qclass or 'IN'];
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	236 end
337 4a1dd1c2c219 We have SRV resolving \o/ Matthew Wild <mwild1@gmail.com> parents: diff changeset	237
4a1dd1c2c219 We have SRV resolving \o/ Matthew Wild <mwild1@gmail.com> parents: diff changeset	238
2069 72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	239 local function prune(rrs, time, soft) -- - - - - - - - - - - - - - - prune
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	240 time = time or socket.gettime();
6463 460584257cc9 net.dns: Avoid duplicate cache entries Florian Zeitz <florob@babelmonkeys.de> parents: 6310 diff changeset	241 for i,rr in ipairs(rrs) do
2069 72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	242 if rr.tod then
8151 2c65f8be38aa net.dns: Simplify expiry calculation (fixes #919) Kim Alvefur <zash@zash.se> parents: 7093 diff changeset	243 if rr.tod < time then
6463 460584257cc9 net.dns: Avoid duplicate cache entries Florian Zeitz <florob@babelmonkeys.de> parents: 6310 diff changeset	244 rrs[rr[rr.type:lower()]] = nil;
2069 72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	245 table.remove(rrs, i);
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	246 return prune(rrs, time, soft); -- Re-iterate
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	247 end
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	248 elseif soft == 'soft' then -- What is this? I forget!
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	249 assert(rr.ttl == 0);
6463 460584257cc9 net.dns: Avoid duplicate cache entries Florian Zeitz <florob@babelmonkeys.de> parents: 6310 diff changeset	250 rrs[rr[rr.type:lower()]] = nil;
460584257cc9 net.dns: Avoid duplicate cache entries Florian Zeitz <florob@babelmonkeys.de> parents: 6310 diff changeset	251 table.remove(rrs, i);
2069 72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	252 end
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	253 end
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	254 end
337 4a1dd1c2c219 We have SRV resolving \o/ Matthew Wild <mwild1@gmail.com> parents: diff changeset	255
4a1dd1c2c219 We have SRV resolving \o/ Matthew Wild <mwild1@gmail.com> parents: diff changeset	256
4a1dd1c2c219 We have SRV resolving \o/ Matthew Wild <mwild1@gmail.com> parents: diff changeset	257 -- metatables & co. ------------------------------------------ metatables & co.
4a1dd1c2c219 We have SRV resolving \o/ Matthew Wild <mwild1@gmail.com> parents: diff changeset	258
4a1dd1c2c219 We have SRV resolving \o/ Matthew Wild <mwild1@gmail.com> parents: diff changeset	259
2069 72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	260 local resolver = {};
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	261 resolver.__index = resolver;
337 4a1dd1c2c219 We have SRV resolving \o/ Matthew Wild <mwild1@gmail.com> parents: diff changeset	262
3327 b447682f2a8d net.dns: Make timeout configurable (default 15s) Matthew Wild <mwild1@gmail.com> parents: 3326 diff changeset	263 resolver.timeout = default_timeout;
337 4a1dd1c2c219 We have SRV resolving \o/ Matthew Wild <mwild1@gmail.com> parents: diff changeset	264
3747 7d5b135bf268 net.dns: Clean up tostring() of returned records, as a result PTR records can now be tostring()'d Matthew Wild <mwild1@gmail.com> parents: 3746 diff changeset	265 local function default_rr_tostring(rr)
7d5b135bf268 net.dns: Clean up tostring() of returned records, as a result PTR records can now be tostring()'d Matthew Wild <mwild1@gmail.com> parents: 3746 diff changeset	266 local rr_val = rr.type and rr[rr.type:lower()];
7d5b135bf268 net.dns: Clean up tostring() of returned records, as a result PTR records can now be tostring()'d Matthew Wild <mwild1@gmail.com> parents: 3746 diff changeset	267 if type(rr_val) ~= "string" then
7d5b135bf268 net.dns: Clean up tostring() of returned records, as a result PTR records can now be tostring()'d Matthew Wild <mwild1@gmail.com> parents: 3746 diff changeset	268 return "<UNKNOWN RDATA TYPE>";
7d5b135bf268 net.dns: Clean up tostring() of returned records, as a result PTR records can now be tostring()'d Matthew Wild <mwild1@gmail.com> parents: 3746 diff changeset	269 end
7d5b135bf268 net.dns: Clean up tostring() of returned records, as a result PTR records can now be tostring()'d Matthew Wild <mwild1@gmail.com> parents: 3746 diff changeset	270 return rr_val;
7d5b135bf268 net.dns: Clean up tostring() of returned records, as a result PTR records can now be tostring()'d Matthew Wild <mwild1@gmail.com> parents: 3746 diff changeset	271 end
7d5b135bf268 net.dns: Clean up tostring() of returned records, as a result PTR records can now be tostring()'d Matthew Wild <mwild1@gmail.com> parents: 3746 diff changeset	272
7d5b135bf268 net.dns: Clean up tostring() of returned records, as a result PTR records can now be tostring()'d Matthew Wild <mwild1@gmail.com> parents: 3746 diff changeset	273 local special_tostrings = {
7d5b135bf268 net.dns: Clean up tostring() of returned records, as a result PTR records can now be tostring()'d Matthew Wild <mwild1@gmail.com> parents: 3746 diff changeset	274 LOC = resolver.LOC_tostring;
4125 5cf13260edec net.dns: Fix tostring() for SRV records Matthew Wild <mwild1@gmail.com> parents: 3955 diff changeset	275 MX = function (rr)
5cf13260edec net.dns: Fix tostring() for SRV records Matthew Wild <mwild1@gmail.com> parents: 3955 diff changeset	276 return string.format('%2i %s', rr.pref, rr.mx);
5cf13260edec net.dns: Fix tostring() for SRV records Matthew Wild <mwild1@gmail.com> parents: 3955 diff changeset	277 end;
5cf13260edec net.dns: Fix tostring() for SRV records Matthew Wild <mwild1@gmail.com> parents: 3955 diff changeset	278 SRV = function (rr)
5cf13260edec net.dns: Fix tostring() for SRV records Matthew Wild <mwild1@gmail.com> parents: 3955 diff changeset	279 local s = rr.srv;
5cf13260edec net.dns: Fix tostring() for SRV records Matthew Wild <mwild1@gmail.com> parents: 3955 diff changeset	280 return string.format('%5d %5d %5d %s', s.priority, s.weight, s.port, s.target);
5cf13260edec net.dns: Fix tostring() for SRV records Matthew Wild <mwild1@gmail.com> parents: 3955 diff changeset	281 end;
3747 7d5b135bf268 net.dns: Clean up tostring() of returned records, as a result PTR records can now be tostring()'d Matthew Wild <mwild1@gmail.com> parents: 3746 diff changeset	282 };
337 4a1dd1c2c219 We have SRV resolving \o/ Matthew Wild <mwild1@gmail.com> parents: diff changeset	283
2069 72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	284 local rr_metatable = {}; -- - - - - - - - - - - - - - - - - - - rr_metatable
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	285 function rr_metatable.__tostring(rr)
3747 7d5b135bf268 net.dns: Clean up tostring() of returned records, as a result PTR records can now be tostring()'d Matthew Wild <mwild1@gmail.com> parents: 3746 diff changeset	286 local rr_string = (special_tostrings[rr.type] or default_rr_tostring)(rr);
7d5b135bf268 net.dns: Clean up tostring() of returned records, as a result PTR records can now be tostring()'d Matthew Wild <mwild1@gmail.com> parents: 3746 diff changeset	287 return string.format('%2s %-5s %6i %-28s %s', rr.class, rr.type, rr.ttl, rr.name, rr_string);
2069 72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	288 end
337 4a1dd1c2c219 We have SRV resolving \o/ Matthew Wild <mwild1@gmail.com> parents: diff changeset	289
4a1dd1c2c219 We have SRV resolving \o/ Matthew Wild <mwild1@gmail.com> parents: diff changeset	290
2069 72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	291 local rrs_metatable = {}; -- - - - - - - - - - - - - - - - - - rrs_metatable
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	292 function rrs_metatable.__tostring(rrs)
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	293 local t = {};
7469 363e4a5e9b0a net.dns: remove unused one-letter loop variables [luacheck] Anton Shestakov <av6@dwimlabs.net> parents: 7322 diff changeset	294 for _, rr in ipairs(rrs) do
2069 72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	295 append(t, tostring(rr)..'\n');
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	296 end
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	297 return table.concat(t);
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	298 end
337 4a1dd1c2c219 We have SRV resolving \o/ Matthew Wild <mwild1@gmail.com> parents: diff changeset	299
4a1dd1c2c219 We have SRV resolving \o/ Matthew Wild <mwild1@gmail.com> parents: diff changeset	300
2069 72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	301 local cache_metatable = {}; -- - - - - - - - - - - - - - - - cache_metatable
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	302 function cache_metatable.__tostring(cache)
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	303 local time = socket.gettime();
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	304 local t = {};
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	305 for class,types in pairs(cache) do
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	306 for type,names in pairs(types) do
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	307 for name,rrs in pairs(names) do
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	308 prune(rrs, time);
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	309 append(t, tostring(rrs));
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	310 end
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	311 end
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	312 end
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	313 return table.concat(t);
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	314 end
337 4a1dd1c2c219 We have SRV resolving \o/ Matthew Wild <mwild1@gmail.com> parents: diff changeset	315
4a1dd1c2c219 We have SRV resolving \o/ Matthew Wild <mwild1@gmail.com> parents: diff changeset	316
4a1dd1c2c219 We have SRV resolving \o/ Matthew Wild <mwild1@gmail.com> parents: diff changeset	317 -- packet layer -------------------------------------------------- packet layer
4a1dd1c2c219 We have SRV resolving \o/ Matthew Wild <mwild1@gmail.com> parents: diff changeset	318
4a1dd1c2c219 We have SRV resolving \o/ Matthew Wild <mwild1@gmail.com> parents: diff changeset	319
2069 72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	320 function dns.random(...) -- - - - - - - - - - - - - - - - - - - dns.random
6645 4f934cf03bc9 net.dns: Make sure argument to math.randomseed does not overflow a 32 bit signed int (blame Lua). Closes #439 Kim Alvefur <zash@zash.se> parents: 6631 diff changeset	321 math.randomseed(math.floor(10000*socket.gettime()) % 0x80000000);
2069 72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	322 dns.random = math.random;
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	323 return dns.random(...);
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	324 end
337 4a1dd1c2c219 We have SRV resolving \o/ Matthew Wild <mwild1@gmail.com> parents: diff changeset	325
4a1dd1c2c219 We have SRV resolving \o/ Matthew Wild <mwild1@gmail.com> parents: diff changeset	326
2069 72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	327 local function encodeHeader(o) -- - - - - - - - - - - - - - - encodeHeader
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	328 o = o or {};
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	329 o.id = o.id or dns.random(0, 0xffff); -- 16b (random) id
337 4a1dd1c2c219 We have SRV resolving \o/ Matthew Wild <mwild1@gmail.com> parents: diff changeset	330
2069 72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	331 o.rd = o.rd or 1; -- 1b 1 recursion desired
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	332 o.tc = o.tc or 0; -- 1b 1 truncated response
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	333 o.aa = o.aa or 0; -- 1b 1 authoritative response
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	334 o.opcode = o.opcode or 0; -- 4b 0 query
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	335 -- 1 inverse query
337 4a1dd1c2c219 We have SRV resolving \o/ Matthew Wild <mwild1@gmail.com> parents: diff changeset	336 -- 2 server status request
4a1dd1c2c219 We have SRV resolving \o/ Matthew Wild <mwild1@gmail.com> parents: diff changeset	337 -- 3-15 reserved
2069 72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	338 o.qr = o.qr or 0; -- 1b 0 query, 1 response
337 4a1dd1c2c219 We have SRV resolving \o/ Matthew Wild <mwild1@gmail.com> parents: diff changeset	339
2069 72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	340 o.rcode = o.rcode or 0; -- 4b 0 no error
337 4a1dd1c2c219 We have SRV resolving \o/ Matthew Wild <mwild1@gmail.com> parents: diff changeset	341 -- 1 format error
4a1dd1c2c219 We have SRV resolving \o/ Matthew Wild <mwild1@gmail.com> parents: diff changeset	342 -- 2 server failure
4a1dd1c2c219 We have SRV resolving \o/ Matthew Wild <mwild1@gmail.com> parents: diff changeset	343 -- 3 name error
4a1dd1c2c219 We have SRV resolving \o/ Matthew Wild <mwild1@gmail.com> parents: diff changeset	344 -- 4 not implemented
4a1dd1c2c219 We have SRV resolving \o/ Matthew Wild <mwild1@gmail.com> parents: diff changeset	345 -- 5 refused
4a1dd1c2c219 We have SRV resolving \o/ Matthew Wild <mwild1@gmail.com> parents: diff changeset	346 -- 6-15 reserved
2069 72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	347 o.z = o.z or 0; -- 3b 0 resvered
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	348 o.ra = o.ra or 0; -- 1b 1 recursion available
337 4a1dd1c2c219 We have SRV resolving \o/ Matthew Wild <mwild1@gmail.com> parents: diff changeset	349
2069 72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	350 o.qdcount = o.qdcount or 1; -- 16b number of question RRs
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	351 o.ancount = o.ancount or 0; -- 16b number of answers RRs
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	352 o.nscount = o.nscount or 0; -- 16b number of nameservers RRs
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	353 o.arcount = o.arcount or 0; -- 16b number of additional RRs
337 4a1dd1c2c219 We have SRV resolving \o/ Matthew Wild <mwild1@gmail.com> parents: diff changeset	354
2069 72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	355 -- string.char() rounds, so prevent roundup with -0.4999
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	356 local header = string.char(
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	357 highbyte(o.id), o.id %0x100,
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	358 o.rd + 2o.tc + 4o.aa + 8o.opcode + 128o.qr,
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	359 o.rcode + 16o.z + 128o.ra,
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	360 highbyte(o.qdcount), o.qdcount %0x100,
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	361 highbyte(o.ancount), o.ancount %0x100,
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	362 highbyte(o.nscount), o.nscount %0x100,
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	363 highbyte(o.arcount), o.arcount %0x100
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	364 );
337 4a1dd1c2c219 We have SRV resolving \o/ Matthew Wild <mwild1@gmail.com> parents: diff changeset	365
2069 72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	366 return header, o.id;
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	367 end
337 4a1dd1c2c219 We have SRV resolving \o/ Matthew Wild <mwild1@gmail.com> parents: diff changeset	368
4a1dd1c2c219 We have SRV resolving \o/ Matthew Wild <mwild1@gmail.com> parents: diff changeset	369
2069 72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	370 local function encodeName(name) -- - - - - - - - - - - - - - - - encodeName
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	371 local t = {};
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	372 for part in string.gmatch(name, '[^.]+') do
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	373 append(t, string.char(string.len(part)));
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	374 append(t, part);
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	375 end
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	376 append(t, string.char(0));
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	377 return table.concat(t);
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	378 end
337 4a1dd1c2c219 We have SRV resolving \o/ Matthew Wild <mwild1@gmail.com> parents: diff changeset	379
4a1dd1c2c219 We have SRV resolving \o/ Matthew Wild <mwild1@gmail.com> parents: diff changeset	380
2069 72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	381 local function encodeQuestion(qname, qtype, qclass) -- - - - encodeQuestion
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	382 qname = encodeName(qname);
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	383 qtype = dns.typecode[qtype or 'a'];
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	384 qclass = dns.classcode[qclass or 'in'];
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	385 return qname..qtype..qclass;
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	386 end
337 4a1dd1c2c219 We have SRV resolving \o/ Matthew Wild <mwild1@gmail.com> parents: diff changeset	387
4a1dd1c2c219 We have SRV resolving \o/ Matthew Wild <mwild1@gmail.com> parents: diff changeset	388
2069 72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	389 function resolver:byte(len) -- - - - - - - - - - - - - - - - - - - - - byte
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	390 len = len or 1;
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	391 local offset = self.offset;
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	392 local last = offset + len - 1;
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	393 if last > #self.packet then
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	394 error(string.format('out of bounds: %i>%i', last, #self.packet));
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	395 end
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	396 self.offset = offset + len;
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	397 return string.byte(self.packet, offset, last);
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	398 end
337 4a1dd1c2c219 We have SRV resolving \o/ Matthew Wild <mwild1@gmail.com> parents: diff changeset	399
4a1dd1c2c219 We have SRV resolving \o/ Matthew Wild <mwild1@gmail.com> parents: diff changeset	400
2069 72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	401 function resolver:word() -- - - - - - - - - - - - - - - - - - - - - - word
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	402 local b1, b2 = self:byte(2);
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	403 return 0x100*b1 + b2;
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	404 end
337 4a1dd1c2c219 We have SRV resolving \o/ Matthew Wild <mwild1@gmail.com> parents: diff changeset	405
4a1dd1c2c219 We have SRV resolving \o/ Matthew Wild <mwild1@gmail.com> parents: diff changeset	406
4a1dd1c2c219 We have SRV resolving \o/ Matthew Wild <mwild1@gmail.com> parents: diff changeset	407 function resolver:dword () -- - - - - - - - - - - - - - - - - - - - - dword
2069 72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	408 local b1, b2, b3, b4 = self:byte(4);
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	409 --print('dword', b1, b2, b3, b4);
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	410 return 0x1000000b1 + 0x10000b2 + 0x100*b3 + b4;
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	411 end
337 4a1dd1c2c219 We have SRV resolving \o/ Matthew Wild <mwild1@gmail.com> parents: diff changeset	412
4a1dd1c2c219 We have SRV resolving \o/ Matthew Wild <mwild1@gmail.com> parents: diff changeset	413
2069 72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	414 function resolver:sub(len) -- - - - - - - - - - - - - - - - - - - - - - sub
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	415 len = len or 1;
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	416 local s = string.sub(self.packet, self.offset, self.offset + len - 1);
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	417 self.offset = self.offset + len;
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	418 return s;
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	419 end
337 4a1dd1c2c219 We have SRV resolving \o/ Matthew Wild <mwild1@gmail.com> parents: diff changeset	420
4a1dd1c2c219 We have SRV resolving \o/ Matthew Wild <mwild1@gmail.com> parents: diff changeset	421
2069 72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	422 function resolver:header(force) -- - - - - - - - - - - - - - - - - - header
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	423 local id = self:word();
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	424 --print(string.format(':header id %x', id));
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	425 if not self.active[id] and not force then return nil; end
337 4a1dd1c2c219 We have SRV resolving \o/ Matthew Wild <mwild1@gmail.com> parents: diff changeset	426
2069 72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	427 local h = { id = id };
337 4a1dd1c2c219 We have SRV resolving \o/ Matthew Wild <mwild1@gmail.com> parents: diff changeset	428
2069 72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	429 local b1, b2 = self:byte(2);
337 4a1dd1c2c219 We have SRV resolving \o/ Matthew Wild <mwild1@gmail.com> parents: diff changeset	430
2069 72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	431 h.rd = b1 %2;
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	432 h.tc = b1 /2%2;
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	433 h.aa = b1 /4%2;
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	434 h.opcode = b1 /8%16;
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	435 h.qr = b1 /128;
337 4a1dd1c2c219 We have SRV resolving \o/ Matthew Wild <mwild1@gmail.com> parents: diff changeset	436
2069 72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	437 h.rcode = b2 %16;
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	438 h.z = b2 /16%8;
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	439 h.ra = b2 /128;
337 4a1dd1c2c219 We have SRV resolving \o/ Matthew Wild <mwild1@gmail.com> parents: diff changeset	440
2069 72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	441 h.qdcount = self:word();
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	442 h.ancount = self:word();
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	443 h.nscount = self:word();
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	444 h.arcount = self:word();
337 4a1dd1c2c219 We have SRV resolving \o/ Matthew Wild <mwild1@gmail.com> parents: diff changeset	445
2069 72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	446 for k,v in pairs(h) do h[k] = v-v%1; end
337 4a1dd1c2c219 We have SRV resolving \o/ Matthew Wild <mwild1@gmail.com> parents: diff changeset	447
2069 72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	448 return h;
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	449 end
337 4a1dd1c2c219 We have SRV resolving \o/ Matthew Wild <mwild1@gmail.com> parents: diff changeset	450
4a1dd1c2c219 We have SRV resolving \o/ Matthew Wild <mwild1@gmail.com> parents: diff changeset	451
2069 72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	452 function resolver:name() -- - - - - - - - - - - - - - - - - - - - - - name
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	453 local remember, pointers = nil, 0;
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	454 local len = self:byte();
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	455 local n = {};
4422 c25dee24623f s2smanager, net.dns: Fix handling for NXNAME and SRV target of "." Florian Zeitz <florob@babelmonkeys.de> parents: 4400 diff changeset	456 if len == 0 then return "." end -- Root label
2069 72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	457 while len > 0 do
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	458 if len >= 0xc0 then -- name is "compressed"
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	459 pointers = pointers + 1;
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	460 if pointers >= 20 then error('dns error: 20 pointers'); end;
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	461 local offset = ((len-0xc0)*0x100) + self:byte();
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	462 remember = remember or self.offset;
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	463 self.offset = offset + 1; -- +1 for lua
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	464 else -- name is not compressed
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	465 append(n, self:sub(len)..'.');
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	466 end
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	467 len = self:byte();
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	468 end
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	469 self.offset = remember or self.offset;
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	470 return table.concat(n);
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	471 end
337 4a1dd1c2c219 We have SRV resolving \o/ Matthew Wild <mwild1@gmail.com> parents: diff changeset	472
4a1dd1c2c219 We have SRV resolving \o/ Matthew Wild <mwild1@gmail.com> parents: diff changeset	473
2069 72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	474 function resolver:question() -- - - - - - - - - - - - - - - - - - question
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	475 local q = {};
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	476 q.name = self:name();
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	477 q.type = dns.type[self:word()];
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	478 q.class = dns.class[self:word()];
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	479 return q;
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	480 end
337 4a1dd1c2c219 We have SRV resolving \o/ Matthew Wild <mwild1@gmail.com> parents: diff changeset	481
4a1dd1c2c219 We have SRV resolving \o/ Matthew Wild <mwild1@gmail.com> parents: diff changeset	482
2069 72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	483 function resolver:A(rr) -- - - - - - - - - - - - - - - - - - - - - - - - A
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	484 local b1, b2, b3, b4 = self:byte(4);
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	485 rr.a = string.format('%i.%i.%i.%i', b1, b2, b3, b4);
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	486 end
337 4a1dd1c2c219 We have SRV resolving \o/ Matthew Wild <mwild1@gmail.com> parents: diff changeset	487
8427 1371518f70ff net.dns: Use inet_ntop from util.net if available Kim Alvefur <zash@zash.se> parents: 8263 diff changeset	488 if have_util_net and util_net.ntop then
1371518f70ff net.dns: Use inet_ntop from util.net if available Kim Alvefur <zash@zash.se> parents: 8263 diff changeset	489 function resolver:A(rr)
1371518f70ff net.dns: Use inet_ntop from util.net if available Kim Alvefur <zash@zash.se> parents: 8263 diff changeset	490 rr.a = util_net.ntop(self:sub(4));
1371518f70ff net.dns: Use inet_ntop from util.net if available Kim Alvefur <zash@zash.se> parents: 8263 diff changeset	491 end
1371518f70ff net.dns: Use inet_ntop from util.net if available Kim Alvefur <zash@zash.se> parents: 8263 diff changeset	492 end
1371518f70ff net.dns: Use inet_ntop from util.net if available Kim Alvefur <zash@zash.se> parents: 8263 diff changeset	493
4267 29d7eb6ff62c net.dns: Support for resolving AAAA records Matthew Wild <mwild1@gmail.com> parents: 4251 diff changeset	494 function resolver:AAAA(rr)
29d7eb6ff62c net.dns: Support for resolving AAAA records Matthew Wild <mwild1@gmail.com> parents: 4251 diff changeset	495 local addr = {};
7500 4c519444d4a2 net.dns: remove unused one-letter loop variables [luacheck] Anton Shestakov <av6@dwimlabs.net> parents: 7480 diff changeset	496 for _ = 1, rr.rdlength, 2 do
4267 29d7eb6ff62c net.dns: Support for resolving AAAA records Matthew Wild <mwild1@gmail.com> parents: 4251 diff changeset	497 local b1, b2 = self:byte(2);
29d7eb6ff62c net.dns: Support for resolving AAAA records Matthew Wild <mwild1@gmail.com> parents: 4251 diff changeset	498 table.insert(addr, ("%02x%02x"):format(b1, b2));
29d7eb6ff62c net.dns: Support for resolving AAAA records Matthew Wild <mwild1@gmail.com> parents: 4251 diff changeset	499 end
4373 9a20acf315c9 net.dns: Shorten AAAA records Kim Alvefur <zash@zash.se> parents: 4267 diff changeset	500 addr = table.concat(addr, ":"):gsub("%f[%x]0+(%x)","%1");
9a20acf315c9 net.dns: Shorten AAAA records Kim Alvefur <zash@zash.se> parents: 4267 diff changeset	501 local zeros = {};
8421 3d21c63ec03f net.dns: Don't compress a single zero group in IPv6 addresses to match behaviour of inet_ntop Kim Alvefur <zash@zash.se> parents: 8263 diff changeset	502 for item in addr:gmatch(":[0:]+:[0:]+:") do
4373 9a20acf315c9 net.dns: Shorten AAAA records Kim Alvefur <zash@zash.se> parents: 4267 diff changeset	503 table.insert(zeros, item)
9a20acf315c9 net.dns: Shorten AAAA records Kim Alvefur <zash@zash.se> parents: 4267 diff changeset	504 end
9a20acf315c9 net.dns: Shorten AAAA records Kim Alvefur <zash@zash.se> parents: 4267 diff changeset	505 if #zeros == 0 then
9a20acf315c9 net.dns: Shorten AAAA records Kim Alvefur <zash@zash.se> parents: 4267 diff changeset	506 rr.aaaa = addr;
9a20acf315c9 net.dns: Shorten AAAA records Kim Alvefur <zash@zash.se> parents: 4267 diff changeset	507 return
9a20acf315c9 net.dns: Shorten AAAA records Kim Alvefur <zash@zash.se> parents: 4267 diff changeset	508 elseif #zeros > 1 then
9a20acf315c9 net.dns: Shorten AAAA records Kim Alvefur <zash@zash.se> parents: 4267 diff changeset	509 table.sort(zeros, function(a, b) return #a > #b end);
9a20acf315c9 net.dns: Shorten AAAA records Kim Alvefur <zash@zash.se> parents: 4267 diff changeset	510 end
9a20acf315c9 net.dns: Shorten AAAA records Kim Alvefur <zash@zash.se> parents: 4267 diff changeset	511 rr.aaaa = addr:gsub(zeros[1], "::", 1):gsub("^0::", "::"):gsub("::0$", "::");
4267 29d7eb6ff62c net.dns: Support for resolving AAAA records Matthew Wild <mwild1@gmail.com> parents: 4251 diff changeset	512 end
337 4a1dd1c2c219 We have SRV resolving \o/ Matthew Wild <mwild1@gmail.com> parents: diff changeset	513
8427 1371518f70ff net.dns: Use inet_ntop from util.net if available Kim Alvefur <zash@zash.se> parents: 8263 diff changeset	514 if have_util_net and util_net.ntop then
1371518f70ff net.dns: Use inet_ntop from util.net if available Kim Alvefur <zash@zash.se> parents: 8263 diff changeset	515 function resolver:AAAA(rr)
1371518f70ff net.dns: Use inet_ntop from util.net if available Kim Alvefur <zash@zash.se> parents: 8263 diff changeset	516 rr.aaaa = util_net.ntop(self:sub(16));
1371518f70ff net.dns: Use inet_ntop from util.net if available Kim Alvefur <zash@zash.se> parents: 8263 diff changeset	517 end
1371518f70ff net.dns: Use inet_ntop from util.net if available Kim Alvefur <zash@zash.se> parents: 8263 diff changeset	518 end
1371518f70ff net.dns: Use inet_ntop from util.net if available Kim Alvefur <zash@zash.se> parents: 8263 diff changeset	519
2069 72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	520 function resolver:CNAME(rr) -- - - - - - - - - - - - - - - - - - - - CNAME
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	521 rr.cname = self:name();
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	522 end
337 4a1dd1c2c219 We have SRV resolving \o/ Matthew Wild <mwild1@gmail.com> parents: diff changeset	523
4a1dd1c2c219 We have SRV resolving \o/ Matthew Wild <mwild1@gmail.com> parents: diff changeset	524
2069 72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	525 function resolver:MX(rr) -- - - - - - - - - - - - - - - - - - - - - - - MX
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	526 rr.pref = self:word();
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	527 rr.mx = self:name();
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	528 end
337 4a1dd1c2c219 We have SRV resolving \o/ Matthew Wild <mwild1@gmail.com> parents: diff changeset	529
4a1dd1c2c219 We have SRV resolving \o/ Matthew Wild <mwild1@gmail.com> parents: diff changeset	530
2069 72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	531 function resolver:LOC_nibble_power() -- - - - - - - - - - LOC_nibble_power
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	532 local b = self:byte();
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	533 --print('nibbles', ((b-(b%0x10))/0x10), (b%0x10));
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	534 return ((b-(b%0x10))/0x10) * (10^(b%0x10));
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	535 end
337 4a1dd1c2c219 We have SRV resolving \o/ Matthew Wild <mwild1@gmail.com> parents: diff changeset	536
4a1dd1c2c219 We have SRV resolving \o/ Matthew Wild <mwild1@gmail.com> parents: diff changeset	537
2069 72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	538 function resolver:LOC(rr) -- - - - - - - - - - - - - - - - - - - - - - LOC
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	539 rr.version = self:byte();
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	540 if rr.version == 0 then
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	541 rr.loc = rr.loc or {};
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	542 rr.loc.size = self:LOC_nibble_power();
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	543 rr.loc.horiz_pre = self:LOC_nibble_power();
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	544 rr.loc.vert_pre = self:LOC_nibble_power();
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	545 rr.loc.latitude = self:dword();
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	546 rr.loc.longitude = self:dword();
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	547 rr.loc.altitude = self:dword();
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	548 end
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	549 end
337 4a1dd1c2c219 We have SRV resolving \o/ Matthew Wild <mwild1@gmail.com> parents: diff changeset	550
4a1dd1c2c219 We have SRV resolving \o/ Matthew Wild <mwild1@gmail.com> parents: diff changeset	551
2069 72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	552 local function LOC_tostring_degrees(f, pos, neg) -- - - - - - - - - - - - -
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	553 f = f - 0x80000000;
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	554 if f < 0 then pos = neg; f = -f; end
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	555 local deg, min, msec;
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	556 msec = f%60000;
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	557 f = (f-msec)/60000;
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	558 min = f%60;
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	559 deg = (f-min)/60;
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	560 return string.format('%3d %2d %2.3f %s', deg, min, msec/1000, pos);
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	561 end
337 4a1dd1c2c219 We have SRV resolving \o/ Matthew Wild <mwild1@gmail.com> parents: diff changeset	562
4a1dd1c2c219 We have SRV resolving \o/ Matthew Wild <mwild1@gmail.com> parents: diff changeset	563
2069 72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	564 function resolver.LOC_tostring(rr) -- - - - - - - - - - - - - LOC_tostring
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	565 local t = {};
337 4a1dd1c2c219 We have SRV resolving \o/ Matthew Wild <mwild1@gmail.com> parents: diff changeset	566
2069 72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	567 --[[
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	568 for k,name in pairs { 'size', 'horiz_pre', 'vert_pre', 'latitude', 'longitude', 'altitude' } do
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	569 append(t, string.format('%4s%-10s: %12.0f\n', '', name, rr.loc[name]));
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	570 end
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	571 --]]
337 4a1dd1c2c219 We have SRV resolving \o/ Matthew Wild <mwild1@gmail.com> parents: diff changeset	572
2069 72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	573 append(t, string.format(
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	574 '%s %s %.2fm %.2fm %.2fm %.2fm',
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	575 LOC_tostring_degrees (rr.loc.latitude, 'N', 'S'),
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	576 LOC_tostring_degrees (rr.loc.longitude, 'E', 'W'),
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	577 (rr.loc.altitude - 10000000) / 100,
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	578 rr.loc.size / 100,
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	579 rr.loc.horiz_pre / 100,
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	580 rr.loc.vert_pre / 100
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	581 ));
337 4a1dd1c2c219 We have SRV resolving \o/ Matthew Wild <mwild1@gmail.com> parents: diff changeset	582
2069 72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	583 return table.concat(t);
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	584 end
337 4a1dd1c2c219 We have SRV resolving \o/ Matthew Wild <mwild1@gmail.com> parents: diff changeset	585
4a1dd1c2c219 We have SRV resolving \o/ Matthew Wild <mwild1@gmail.com> parents: diff changeset	586
2069 72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	587 function resolver:NS(rr) -- - - - - - - - - - - - - - - - - - - - - - - NS
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	588 rr.ns = self:name();
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	589 end
337 4a1dd1c2c219 We have SRV resolving \o/ Matthew Wild <mwild1@gmail.com> parents: diff changeset	590
4a1dd1c2c219 We have SRV resolving \o/ Matthew Wild <mwild1@gmail.com> parents: diff changeset	591
2069 72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	592 function resolver:SOA(rr) -- - - - - - - - - - - - - - - - - - - - - - SOA
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	593 end
337 4a1dd1c2c219 We have SRV resolving \o/ Matthew Wild <mwild1@gmail.com> parents: diff changeset	594
4a1dd1c2c219 We have SRV resolving \o/ Matthew Wild <mwild1@gmail.com> parents: diff changeset	595
2069 72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	596 function resolver:SRV(rr) -- - - - - - - - - - - - - - - - - - - - - - SRV
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	597 rr.srv = {};
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	598 rr.srv.priority = self:word();
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	599 rr.srv.weight = self:word();
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	600 rr.srv.port = self:word();
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	601 rr.srv.target = self:name();
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	602 end
337 4a1dd1c2c219 We have SRV resolving \o/ Matthew Wild <mwild1@gmail.com> parents: diff changeset	603
3513 4cf5962747fc net.dns: Support for parsing PTR records Matthew Wild <mwild1@gmail.com> parents: 3512 diff changeset	604 function resolver:PTR(rr)
4cf5962747fc net.dns: Support for parsing PTR records Matthew Wild <mwild1@gmail.com> parents: 3512 diff changeset	605 rr.ptr = self:name();
4cf5962747fc net.dns: Support for parsing PTR records Matthew Wild <mwild1@gmail.com> parents: 3512 diff changeset	606 end
337 4a1dd1c2c219 We have SRV resolving \o/ Matthew Wild <mwild1@gmail.com> parents: diff changeset	607
2069 72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	608 function resolver:TXT(rr) -- - - - - - - - - - - - - - - - - - - - - - TXT
4251 96e9d5f9ab3b net.dns: Fix TXT records Kim Alvefur <zash@zash.se> parents: 4125 diff changeset	609 rr.txt = self:sub (self:byte());
2069 72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	610 end
337 4a1dd1c2c219 We have SRV resolving \o/ Matthew Wild <mwild1@gmail.com> parents: diff changeset	611
4a1dd1c2c219 We have SRV resolving \o/ Matthew Wild <mwild1@gmail.com> parents: diff changeset	612
2069 72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	613 function resolver:rr() -- - - - - - - - - - - - - - - - - - - - - - - - rr
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	614 local rr = {};
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	615 setmetatable(rr, rr_metatable);
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	616 rr.name = self:name(self);
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	617 rr.type = dns.type[self:word()] or rr.type;
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	618 rr.class = dns.class[self:word()] or rr.class;
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	619 rr.ttl = 0x10000*self:word() + self:word();
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	620 rr.rdlength = self:word();
337 4a1dd1c2c219 We have SRV resolving \o/ Matthew Wild <mwild1@gmail.com> parents: diff changeset	621
8263 9b52b1f19b51 net.dns: Correctly apply lower bound of RTT (thanks Ge0rG) Kim Alvefur <zash@zash.se> parents: 8164 diff changeset	622 rr.tod = self.time + math.max(rr.ttl, 1);
337 4a1dd1c2c219 We have SRV resolving \o/ Matthew Wild <mwild1@gmail.com> parents: diff changeset	623
2069 72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	624 local remember = self.offset;
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	625 local rr_parser = self[dns.type[rr.type]];
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	626 if rr_parser then rr_parser(self, rr); end
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	627 self.offset = remember;
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	628 rr.rdata = self:sub(rr.rdlength);
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	629 return rr;
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	630 end
337 4a1dd1c2c219 We have SRV resolving \o/ Matthew Wild <mwild1@gmail.com> parents: diff changeset	631
4a1dd1c2c219 We have SRV resolving \o/ Matthew Wild <mwild1@gmail.com> parents: diff changeset	632
4a1dd1c2c219 We have SRV resolving \o/ Matthew Wild <mwild1@gmail.com> parents: diff changeset	633 function resolver:rrs (count) -- - - - - - - - - - - - - - - - - - - - - rrs
2069 72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	634 local rrs = {};
7500 4c519444d4a2 net.dns: remove unused one-letter loop variables [luacheck] Anton Shestakov <av6@dwimlabs.net> parents: 7480 diff changeset	635 for _ = 1, count do append(rrs, self:rr()); end
2069 72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	636 return rrs;
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	637 end
337 4a1dd1c2c219 We have SRV resolving \o/ Matthew Wild <mwild1@gmail.com> parents: diff changeset	638
4a1dd1c2c219 We have SRV resolving \o/ Matthew Wild <mwild1@gmail.com> parents: diff changeset	639
2069 72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	640 function resolver:decode(packet, force) -- - - - - - - - - - - - - - decode
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	641 self.packet, self.offset = packet, 1;
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	642 local header = self:header(force);
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	643 if not header then return nil; end
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	644 local response = { header = header };
337 4a1dd1c2c219 We have SRV resolving \o/ Matthew Wild <mwild1@gmail.com> parents: diff changeset	645
2069 72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	646 response.question = {};
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	647 local offset = self.offset;
7500 4c519444d4a2 net.dns: remove unused one-letter loop variables [luacheck] Anton Shestakov <av6@dwimlabs.net> parents: 7480 diff changeset	648 for _ = 1, response.header.qdcount do
2069 72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	649 append(response.question, self:question());
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	650 end
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	651 response.question.raw = string.sub(self.packet, offset, self.offset - 1);
337 4a1dd1c2c219 We have SRV resolving \o/ Matthew Wild <mwild1@gmail.com> parents: diff changeset	652
2069 72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	653 if not force then
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	654 if not self.active[response.header.id] or not self.active[response.header.id][response.question.raw] then
5266 5c3a3ef6b769 net.dns: Clean up query list when a server is marked down Matthew Wild <mwild1@gmail.com> parents: 4422 diff changeset	655 self.active[response.header.id] = nil;
2069 72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	656 return nil;
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	657 end
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	658 end
337 4a1dd1c2c219 We have SRV resolving \o/ Matthew Wild <mwild1@gmail.com> parents: diff changeset	659
2069 72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	660 response.answer = self:rrs(response.header.ancount);
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	661 response.authority = self:rrs(response.header.nscount);
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	662 response.additional = self:rrs(response.header.arcount);
337 4a1dd1c2c219 We have SRV resolving \o/ Matthew Wild <mwild1@gmail.com> parents: diff changeset	663
2069 72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	664 return response;
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	665 end
337 4a1dd1c2c219 We have SRV resolving \o/ Matthew Wild <mwild1@gmail.com> parents: diff changeset	666
4a1dd1c2c219 We have SRV resolving \o/ Matthew Wild <mwild1@gmail.com> parents: diff changeset	667
4a1dd1c2c219 We have SRV resolving \o/ Matthew Wild <mwild1@gmail.com> parents: diff changeset	668 -- socket layer -------------------------------------------------- socket layer
4a1dd1c2c219 We have SRV resolving \o/ Matthew Wild <mwild1@gmail.com> parents: diff changeset	669
4a1dd1c2c219 We have SRV resolving \o/ Matthew Wild <mwild1@gmail.com> parents: diff changeset	670
10958 25680ece29c2 net.dns: Increase backoff delays Matthew Wild <mwild1@gmail.com> parents: 10957 diff changeset	671 resolver.delays = { 1, 2, 3, 5 };
337 4a1dd1c2c219 We have SRV resolving \o/ Matthew Wild <mwild1@gmail.com> parents: diff changeset	672
10957 8902cecbdd39 net.dns: Add jitter to spread queries and reduce failures due to congestion Matthew Wild <mwild1@gmail.com> parents: 10956 diff changeset	673 resolver.jitter = have_timer and default_jitter or nil;
8902cecbdd39 net.dns: Add jitter to spread queries and reduce failures due to congestion Matthew Wild <mwild1@gmail.com> parents: 10956 diff changeset	674 resolver.retry_jitter = have_timer and default_retry_jitter or nil;
337 4a1dd1c2c219 We have SRV resolving \o/ Matthew Wild <mwild1@gmail.com> parents: diff changeset	675
2069 72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	676 function resolver:addnameserver(address) -- - - - - - - - - - addnameserver
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	677 self.server = self.server or {};
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	678 append(self.server, address);
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	679 end
337 4a1dd1c2c219 We have SRV resolving \o/ Matthew Wild <mwild1@gmail.com> parents: diff changeset	680
4a1dd1c2c219 We have SRV resolving \o/ Matthew Wild <mwild1@gmail.com> parents: diff changeset	681
2069 72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	682 function resolver:setnameserver(address) -- - - - - - - - - - setnameserver
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	683 self.server = {};
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	684 self:addnameserver(address);
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	685 end
337 4a1dd1c2c219 We have SRV resolving \o/ Matthew Wild <mwild1@gmail.com> parents: diff changeset	686
4a1dd1c2c219 We have SRV resolving \o/ Matthew Wild <mwild1@gmail.com> parents: diff changeset	687
2069 72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	688 function resolver:adddefaultnameservers() -- - - - - adddefaultnameservers
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	689 if is_windows then
3544 f2aca3e0fe3b net.dns: Fixed a traceback when util/windows.dll is unavailable on windows. Waqas Hussain <waqas20@gmail.com> parents: 3540 diff changeset	690 if windows and windows.get_nameservers then
2069 72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	691 for _, server in ipairs(windows.get_nameservers()) do
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	692 self:addnameserver(server);
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	693 end
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	694 end
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	695 if not self.server or #self.server == 0 then
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	696 -- TODO log warning about no nameservers, adding opendns servers as fallback
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	697 self:addnameserver("208.67.222.222");
2742 6c0a081cd766 net.dns: Trailing whitespace Matthew Wild <mwild1@gmail.com> parents: 2741 diff changeset	698 self:addnameserver("208.67.220.220");
2069 72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	699 end
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	700 else -- posix
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	701 local resolv_conf = io.open("/etc/resolv.conf");
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	702 if resolv_conf then
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	703 for line in resolv_conf:lines() do
2741 fcd30b72c50c net.dns: More reliable parsing of resolv.conf - allow multiple nameserver IPs on one line (thanks dersd) Matthew Wild <mwild1@gmail.com> parents: 2620 diff changeset	704 line = line:gsub("#.*$", "")
7056 7b0651e4534f net.dns: Allow a zone id in resolv.conf (eg like %eth0) Kim Alvefur <zash@zash.se> parents: 7054 diff changeset	705 :match('^%snameserver%s+([%x:%.]%%?%S)%s$');
2741 fcd30b72c50c net.dns: More reliable parsing of resolv.conf - allow multiple nameserver IPs on one line (thanks dersd) Matthew Wild <mwild1@gmail.com> parents: 2620 diff changeset	706 if line then
7054 94d5e2f33a10 net.dns: Support IPv6 addresses in resolv.conf [Backported from 0.10] Florian Zeitz <florob@babelmonkeys.de> parents: 6863 diff changeset	707 local ip = new_ip(line);
94d5e2f33a10 net.dns: Support IPv6 addresses in resolv.conf [Backported from 0.10] Florian Zeitz <florob@babelmonkeys.de> parents: 6863 diff changeset	708 if ip then
94d5e2f33a10 net.dns: Support IPv6 addresses in resolv.conf [Backported from 0.10] Florian Zeitz <florob@babelmonkeys.de> parents: 6863 diff changeset	709 self:addnameserver(ip.addr);
94d5e2f33a10 net.dns: Support IPv6 addresses in resolv.conf [Backported from 0.10] Florian Zeitz <florob@babelmonkeys.de> parents: 6863 diff changeset	710 end
2741 fcd30b72c50c net.dns: More reliable parsing of resolv.conf - allow multiple nameserver IPs on one line (thanks dersd) Matthew Wild <mwild1@gmail.com> parents: 2620 diff changeset	711 end
2069 72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	712 end
9952 6402bc76f51a net.dns: Close resolv.conf handle when done (fixes #1342) Kim Alvefur <zash@zash.se> parents: 8909 diff changeset	713 resolv_conf:close();
2069 72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	714 end
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	715 if not self.server or #self.server == 0 then
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	716 -- TODO log warning about no nameservers, adding localhost as the default nameserver
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	717 self:addnameserver("127.0.0.1");
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	718 end
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	719 end
399 93b6587d9afb Added temporary fix for srv on windows: using opendns nameservers Waqas Hussain <waqas20@gmail.com> parents: 379 diff changeset	720 end
337 4a1dd1c2c219 We have SRV resolving \o/ Matthew Wild <mwild1@gmail.com> parents: diff changeset	721
4a1dd1c2c219 We have SRV resolving \o/ Matthew Wild <mwild1@gmail.com> parents: diff changeset	722
2069 72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	723 function resolver:getsocket(servernum) -- - - - - - - - - - - - - getsocket
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	724 self.socket = self.socket or {};
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	725 self.socketset = self.socketset or {};
337 4a1dd1c2c219 We have SRV resolving \o/ Matthew Wild <mwild1@gmail.com> parents: diff changeset	726
2069 72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	727 local sock = self.socket[servernum];
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	728 if sock then return sock; end
337 4a1dd1c2c219 We have SRV resolving \o/ Matthew Wild <mwild1@gmail.com> parents: diff changeset	729
6509 7cb69eba3e95 net.dns: Try next server if peer name can not be set (thanks wirehack7) Kim Alvefur <zash@zash.se> parents: 6508 diff changeset	730 local ok, err;
7054 94d5e2f33a10 net.dns: Support IPv6 addresses in resolv.conf [Backported from 0.10] Florian Zeitz <florob@babelmonkeys.de> parents: 6863 diff changeset	731 local peer = self.server[servernum];
94d5e2f33a10 net.dns: Support IPv6 addresses in resolv.conf [Backported from 0.10] Florian Zeitz <florob@babelmonkeys.de> parents: 6863 diff changeset	732 if peer:find(":") then
94d5e2f33a10 net.dns: Support IPv6 addresses in resolv.conf [Backported from 0.10] Florian Zeitz <florob@babelmonkeys.de> parents: 6863 diff changeset	733 sock, err = socket.udp6();
94d5e2f33a10 net.dns: Support IPv6 addresses in resolv.conf [Backported from 0.10] Florian Zeitz <florob@babelmonkeys.de> parents: 6863 diff changeset	734 else
6857 86fcc3fa1a97 net.dns: Use new IPv4-specific socket factory if available (fixes dns on libevent with latest development version of luasocket) Kim Alvefur <zash@zash.se> parents: 6780 diff changeset	735 sock, err = (socket.udp4 or socket.udp)();
7054 94d5e2f33a10 net.dns: Support IPv6 addresses in resolv.conf [Backported from 0.10] Florian Zeitz <florob@babelmonkeys.de> parents: 6863 diff changeset	736 end
5730 411e9e7d8035 net.dns, net.adns: Make sure errors from net.server are propagated (thanks asterix) Kim Alvefur <zash@zash.se> parents: 5566 diff changeset	737 if sock and self.socket_wrapper then sock, err = self.socket_wrapper(sock, self); end
3954 6e22b0cf3d72 net.dns: resolver:getsocket(): Return nil, err on failure Matthew Wild <mwild1@gmail.com> parents: 3747 diff changeset	738 if not sock then
6e22b0cf3d72 net.dns: resolver:getsocket(): Return nil, err on failure Matthew Wild <mwild1@gmail.com> parents: 3747 diff changeset	739 return nil, err;
6e22b0cf3d72 net.dns: resolver:getsocket(): Return nil, err on failure Matthew Wild <mwild1@gmail.com> parents: 3747 diff changeset	740 end
2069 72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	741 sock:settimeout(0);
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	742 -- todo: attempt to use a random port, fallback to 0
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	743 self.socket[servernum] = sock;
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	744 self.socketset[sock] = servernum;
6509 7cb69eba3e95 net.dns: Try next server if peer name can not be set (thanks wirehack7) Kim Alvefur <zash@zash.se> parents: 6508 diff changeset	745 -- set{sock,peer}name can fail, eg because of local routing table
7cb69eba3e95 net.dns: Try next server if peer name can not be set (thanks wirehack7) Kim Alvefur <zash@zash.se> parents: 6508 diff changeset	746 -- if so, try the next server
7cb69eba3e95 net.dns: Try next server if peer name can not be set (thanks wirehack7) Kim Alvefur <zash@zash.se> parents: 6508 diff changeset	747 ok, err = sock:setsockname('*', 0);
7cb69eba3e95 net.dns: Try next server if peer name can not be set (thanks wirehack7) Kim Alvefur <zash@zash.se> parents: 6508 diff changeset	748 if not ok then return self:servfail(sock, err); end
7054 94d5e2f33a10 net.dns: Support IPv6 addresses in resolv.conf [Backported from 0.10] Florian Zeitz <florob@babelmonkeys.de> parents: 6863 diff changeset	749 ok, err = sock:setpeername(peer, 53);
6509 7cb69eba3e95 net.dns: Try next server if peer name can not be set (thanks wirehack7) Kim Alvefur <zash@zash.se> parents: 6508 diff changeset	750 if not ok then return self:servfail(sock, err); end
2069 72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	751 return sock;
1786 4016d8bc30b8 net.dns: Multiple internal changes and API extensions to allow for more reliable DNS lookups Matthew Wild <mwild1@gmail.com> parents: 1523 diff changeset	752 end
337 4a1dd1c2c219 We have SRV resolving \o/ Matthew Wild <mwild1@gmail.com> parents: diff changeset	753
2069 72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	754 function resolver:voidsocket(sock)
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	755 if self.socket[sock] then
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	756 self.socketset[self.socket[sock]] = nil;
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	757 self.socket[sock] = nil;
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	758 elseif self.socketset[sock] then
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	759 self.socket[self.socketset[sock]] = nil;
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	760 self.socketset[sock] = nil;
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	761 end
5267 a2080e5c4eda net.dns: Close voided sockets, so they don't stay in net.server Kim Alvefur <zash@zash.se> parents: 5266 diff changeset	762 sock:close();
2069 72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	763 end
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	764
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	765 function resolver:socket_wrapper_set(func) -- - - - - - - socket_wrapper_set
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	766 self.socket_wrapper = func;
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	767 end
337 4a1dd1c2c219 We have SRV resolving \o/ Matthew Wild <mwild1@gmail.com> parents: diff changeset	768
4a1dd1c2c219 We have SRV resolving \o/ Matthew Wild <mwild1@gmail.com> parents: diff changeset	769
4a1dd1c2c219 We have SRV resolving \o/ Matthew Wild <mwild1@gmail.com> parents: diff changeset	770 function resolver:closeall () -- - - - - - - - - - - - - - - - - - closeall
2069 72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	771 for i,sock in ipairs(self.socket) do
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	772 self.socket[i] = nil;
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	773 self.socketset[sock] = nil;
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	774 sock:close();
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	775 end
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	776 end
337 4a1dd1c2c219 We have SRV resolving \o/ Matthew Wild <mwild1@gmail.com> parents: diff changeset	777
4a1dd1c2c219 We have SRV resolving \o/ Matthew Wild <mwild1@gmail.com> parents: diff changeset	778
2069 72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	779 function resolver:remember(rr, type) -- - - - - - - - - - - - - - remember
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	780 --print ('remember', type, rr.class, rr.type, rr.name)
2620 481c6724818f net.dns: Normalize records before placing them in the cache, fixes issues with CNAME targets in CAPS (fixes #161) Matthew Wild <mwild1@gmail.com> parents: 2619 diff changeset	781 local qname, qtype, qclass = standardize(rr.name, rr.type, rr.class);
337 4a1dd1c2c219 We have SRV resolving \o/ Matthew Wild <mwild1@gmail.com> parents: diff changeset	782
2069 72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	783 if type ~= '*' then
2620 481c6724818f net.dns: Normalize records before placing them in the cache, fixes issues with CNAME targets in CAPS (fixes #161) Matthew Wild <mwild1@gmail.com> parents: 2619 diff changeset	784 type = qtype;
481c6724818f net.dns: Normalize records before placing them in the cache, fixes issues with CNAME targets in CAPS (fixes #161) Matthew Wild <mwild1@gmail.com> parents: 2619 diff changeset	785 local all = get(self.cache, qclass, '*', qname);
2069 72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	786 --print('remember all', all);
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	787 if all then append(all, rr); end
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	788 end
337 4a1dd1c2c219 We have SRV resolving \o/ Matthew Wild <mwild1@gmail.com> parents: diff changeset	789
2069 72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	790 self.cache = self.cache or setmetatable({}, cache_metatable);
2620 481c6724818f net.dns: Normalize records before placing them in the cache, fixes issues with CNAME targets in CAPS (fixes #161) Matthew Wild <mwild1@gmail.com> parents: 2619 diff changeset	791 local rrs = get(self.cache, qclass, type, qname) or
481c6724818f net.dns: Normalize records before placing them in the cache, fixes issues with CNAME targets in CAPS (fixes #161) Matthew Wild <mwild1@gmail.com> parents: 2619 diff changeset	792 set(self.cache, qclass, type, qname, setmetatable({}, rrs_metatable));
8900 fcf42bd7d067 net.dns: Don't attempt to cache unparsed data (fixes #1056) Kim Alvefur <zash@zash.se> parents: 8898 diff changeset	793 if rr[qtype:lower()] and not rrs[rr[qtype:lower()]] then
6463 460584257cc9 net.dns: Avoid duplicate cache entries Florian Zeitz <florob@babelmonkeys.de> parents: 6310 diff changeset	794 rrs[rr[qtype:lower()]] = true;
460584257cc9 net.dns: Avoid duplicate cache entries Florian Zeitz <florob@babelmonkeys.de> parents: 6310 diff changeset	795 append(rrs, rr);
460584257cc9 net.dns: Avoid duplicate cache entries Florian Zeitz <florob@babelmonkeys.de> parents: 6310 diff changeset	796 end
337 4a1dd1c2c219 We have SRV resolving \o/ Matthew Wild <mwild1@gmail.com> parents: diff changeset	797
2069 72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	798 if type == 'MX' then self.unsorted[rrs] = true; end
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	799 end
337 4a1dd1c2c219 We have SRV resolving \o/ Matthew Wild <mwild1@gmail.com> parents: diff changeset	800
4a1dd1c2c219 We have SRV resolving \o/ Matthew Wild <mwild1@gmail.com> parents: diff changeset	801
2069 72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	802 local function comp_mx(a, b) -- - - - - - - - - - - - - - - - - - - comp_mx
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	803 return (a.pref == b.pref) and (a.mx < b.mx) or (a.pref < b.pref);
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	804 end
337 4a1dd1c2c219 We have SRV resolving \o/ Matthew Wild <mwild1@gmail.com> parents: diff changeset	805
4a1dd1c2c219 We have SRV resolving \o/ Matthew Wild <mwild1@gmail.com> parents: diff changeset	806
6631 45222bfb206f net.dns, mod_s2s: Add chasing of CNAMEs to net.dns and remove it from mod_s2s Kim Alvefur <zash@zash.se> parents: 6509 diff changeset	807 function resolver:peek (qname, qtype, qclass, n) -- - - - - - - - - - - - peek
2069 72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	808 qname, qtype, qclass = standardize(qname, qtype, qclass);
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	809 local rrs = get(self.cache, qclass, qtype, qname);
6631 45222bfb206f net.dns, mod_s2s: Add chasing of CNAMEs to net.dns and remove it from mod_s2s Kim Alvefur <zash@zash.se> parents: 6509 diff changeset	810 if not rrs then
45222bfb206f net.dns, mod_s2s: Add chasing of CNAMEs to net.dns and remove it from mod_s2s Kim Alvefur <zash@zash.se> parents: 6509 diff changeset	811 if n then if n <= 0 then return end else n = 3 end
45222bfb206f net.dns, mod_s2s: Add chasing of CNAMEs to net.dns and remove it from mod_s2s Kim Alvefur <zash@zash.se> parents: 6509 diff changeset	812 rrs = get(self.cache, qclass, "CNAME", qname);
45222bfb206f net.dns, mod_s2s: Add chasing of CNAMEs to net.dns and remove it from mod_s2s Kim Alvefur <zash@zash.se> parents: 6509 diff changeset	813 if not (rrs and rrs[1]) then return end
45222bfb206f net.dns, mod_s2s: Add chasing of CNAMEs to net.dns and remove it from mod_s2s Kim Alvefur <zash@zash.se> parents: 6509 diff changeset	814 return self:peek(rrs[1].cname, qtype, qclass, n - 1);
45222bfb206f net.dns, mod_s2s: Add chasing of CNAMEs to net.dns and remove it from mod_s2s Kim Alvefur <zash@zash.se> parents: 6509 diff changeset	815 end
2069 72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	816 if prune(rrs, socket.gettime()) and qtype == '*' or not next(rrs) then
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	817 set(self.cache, qclass, qtype, qname, nil);
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	818 return nil;
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	819 end
6631 45222bfb206f net.dns, mod_s2s: Add chasing of CNAMEs to net.dns and remove it from mod_s2s Kim Alvefur <zash@zash.se> parents: 6509 diff changeset	820 if self.unsorted[rrs] then table.sort (rrs, comp_mx); self.unsorted[rrs] = nil; end
2069 72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	821 return rrs;
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	822 end
337 4a1dd1c2c219 We have SRV resolving \o/ Matthew Wild <mwild1@gmail.com> parents: diff changeset	823
4a1dd1c2c219 We have SRV resolving \o/ Matthew Wild <mwild1@gmail.com> parents: diff changeset	824
2069 72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	825 function resolver:purge(soft) -- - - - - - - - - - - - - - - - - - - purge
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	826 if soft == 'soft' then
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	827 self.time = socket.gettime();
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	828 for class,types in pairs(self.cache or {}) do
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	829 for type,names in pairs(types) do
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	830 for name,rrs in pairs(names) do
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	831 prune(rrs, self.time, 'soft')
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	832 end
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	833 end
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	834 end
4400 ac651265766c net.dns: Preserve metatable on manual cache purge Matthew Wild <mwild1@gmail.com> parents: 4373 diff changeset	835 else self.cache = setmetatable({}, cache_metatable); end
2069 72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	836 end
337 4a1dd1c2c219 We have SRV resolving \o/ Matthew Wild <mwild1@gmail.com> parents: diff changeset	837
4a1dd1c2c219 We have SRV resolving \o/ Matthew Wild <mwild1@gmail.com> parents: diff changeset	838
2069 72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	839 function resolver:query(qname, qtype, qclass) -- - - - - - - - - - -- query
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	840 qname, qtype, qclass = standardize(qname, qtype, qclass)
337 4a1dd1c2c219 We have SRV resolving \o/ Matthew Wild <mwild1@gmail.com> parents: diff changeset	841
6288 d122420542fb net.dns: Fix duplicated cache insertions by limiting outstanding queries per name to one Kim Alvefur <zash@zash.se> parents: 5730 diff changeset	842 local co = coroutine.running();
d122420542fb net.dns: Fix duplicated cache insertions by limiting outstanding queries per name to one Kim Alvefur <zash@zash.se> parents: 5730 diff changeset	843 local q = get(self.wanted, qclass, qtype, qname);
d122420542fb net.dns: Fix duplicated cache insertions by limiting outstanding queries per name to one Kim Alvefur <zash@zash.se> parents: 5730 diff changeset	844 if co and q then
d122420542fb net.dns: Fix duplicated cache insertions by limiting outstanding queries per name to one Kim Alvefur <zash@zash.se> parents: 5730 diff changeset	845 -- We are already waiting for a reply to an identical query.
d122420542fb net.dns: Fix duplicated cache insertions by limiting outstanding queries per name to one Kim Alvefur <zash@zash.se> parents: 5730 diff changeset	846 set(self.wanted, qclass, qtype, qname, co, true);
d122420542fb net.dns: Fix duplicated cache insertions by limiting outstanding queries per name to one Kim Alvefur <zash@zash.se> parents: 5730 diff changeset	847 return true;
d122420542fb net.dns: Fix duplicated cache insertions by limiting outstanding queries per name to one Kim Alvefur <zash@zash.se> parents: 5730 diff changeset	848 end
d122420542fb net.dns: Fix duplicated cache insertions by limiting outstanding queries per name to one Kim Alvefur <zash@zash.se> parents: 5730 diff changeset	849
2069 72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	850 if not self.server then self:adddefaultnameservers(); end
337 4a1dd1c2c219 We have SRV resolving \o/ Matthew Wild <mwild1@gmail.com> parents: diff changeset	851
2069 72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	852 local question = encodeQuestion(qname, qtype, qclass);
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	853 local peek = self:peek (qname, qtype, qclass);
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	854 if peek then return peek; end
337 4a1dd1c2c219 We have SRV resolving \o/ Matthew Wild <mwild1@gmail.com> parents: diff changeset	855
2069 72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	856 local header, id = encodeHeader();
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	857 --print ('query id', id, qclass, qtype, qname)
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	858 local o = {
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	859 packet = header..question,
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	860 server = self.best_server,
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	861 delay = 1,
10957 8902cecbdd39 net.dns: Add jitter to spread queries and reduce failures due to congestion Matthew Wild <mwild1@gmail.com> parents: 10956 diff changeset	862 retry = socket.gettime() + self.delays[1];
10956 03a09fa02e8e net.dns: Fix timeout retry logic Matthew Wild <mwild1@gmail.com> parents: 10955 diff changeset	863 qclass = qclass;
03a09fa02e8e net.dns: Fix timeout retry logic Matthew Wild <mwild1@gmail.com> parents: 10955 diff changeset	864 qtype = qtype;
03a09fa02e8e net.dns: Fix timeout retry logic Matthew Wild <mwild1@gmail.com> parents: 10955 diff changeset	865 qname = qname;
2069 72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	866 };
337 4a1dd1c2c219 We have SRV resolving \o/ Matthew Wild <mwild1@gmail.com> parents: diff changeset	867
3540 bc139431830b Monster whitespace commit (beware the whitespace monster). Waqas Hussain <waqas20@gmail.com> parents: 3513 diff changeset	868 -- remember the query
2069 72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	869 self.active[id] = self.active[id] or {};
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	870 self.active[id][question] = o;
337 4a1dd1c2c219 We have SRV resolving \o/ Matthew Wild <mwild1@gmail.com> parents: diff changeset	871
3955 a096700d23d9 net.dns: resolver:query(): Handle getsocket() failures, and return true on success Matthew Wild <mwild1@gmail.com> parents: 3954 diff changeset	872 local conn, err = self:getsocket(o.server)
a096700d23d9 net.dns: resolver:query(): Handle getsocket() failures, and return true on success Matthew Wild <mwild1@gmail.com> parents: 3954 diff changeset	873 if not conn then
a096700d23d9 net.dns: resolver:query(): Handle getsocket() failures, and return true on success Matthew Wild <mwild1@gmail.com> parents: 3954 diff changeset	874 return nil, err;
a096700d23d9 net.dns: resolver:query(): Handle getsocket() failures, and return true on success Matthew Wild <mwild1@gmail.com> parents: 3954 diff changeset	875 end
10957 8902cecbdd39 net.dns: Add jitter to spread queries and reduce failures due to congestion Matthew Wild <mwild1@gmail.com> parents: 10956 diff changeset	876 if self.jitter then
8902cecbdd39 net.dns: Add jitter to spread queries and reduce failures due to congestion Matthew Wild <mwild1@gmail.com> parents: 10956 diff changeset	877 timer.add_task(math.random()*self.jitter, function ()
8902cecbdd39 net.dns: Add jitter to spread queries and reduce failures due to congestion Matthew Wild <mwild1@gmail.com> parents: 10956 diff changeset	878 conn:send(o.packet);
8902cecbdd39 net.dns: Add jitter to spread queries and reduce failures due to congestion Matthew Wild <mwild1@gmail.com> parents: 10956 diff changeset	879 end);
8902cecbdd39 net.dns: Add jitter to spread queries and reduce failures due to congestion Matthew Wild <mwild1@gmail.com> parents: 10956 diff changeset	880 else
8902cecbdd39 net.dns: Add jitter to spread queries and reduce failures due to congestion Matthew Wild <mwild1@gmail.com> parents: 10956 diff changeset	881 conn:send(o.packet);
8902cecbdd39 net.dns: Add jitter to spread queries and reduce failures due to congestion Matthew Wild <mwild1@gmail.com> parents: 10956 diff changeset	882 end
7093 388281be2bc7 net.dns: Remember query only after it was sent, in case it was not (fixes #598) Kim Alvefur <zash@zash.se> parents: 7059 diff changeset	883
388281be2bc7 net.dns: Remember query only after it was sent, in case it was not (fixes #598) Kim Alvefur <zash@zash.se> parents: 7059 diff changeset	884 -- remember which coroutine wants the answer
388281be2bc7 net.dns: Remember query only after it was sent, in case it was not (fixes #598) Kim Alvefur <zash@zash.se> parents: 7059 diff changeset	885 if co then
388281be2bc7 net.dns: Remember query only after it was sent, in case it was not (fixes #598) Kim Alvefur <zash@zash.se> parents: 7059 diff changeset	886 set(self.wanted, qclass, qtype, qname, co, true);
388281be2bc7 net.dns: Remember query only after it was sent, in case it was not (fixes #598) Kim Alvefur <zash@zash.se> parents: 7059 diff changeset	887 end
3324 070c8ba71b76 net.dns: Handle our own timeouts, including falling onto other servers in resolv.conf if necessary Matthew Wild <mwild1@gmail.com> parents: 3057 diff changeset	888
10664 c2b79b44ded7 net.dns: Handle being loaded outside of Prosody Kim Alvefur <zash@zash.se> parents: 9952 diff changeset	889 if have_timer and self.timeout then
3324 070c8ba71b76 net.dns: Handle our own timeouts, including falling onto other servers in resolv.conf if necessary Matthew Wild <mwild1@gmail.com> parents: 3057 diff changeset	890 local num_servers = #self.server;
070c8ba71b76 net.dns: Handle our own timeouts, including falling onto other servers in resolv.conf if necessary Matthew Wild <mwild1@gmail.com> parents: 3057 diff changeset	891 local i = 1;
3327 b447682f2a8d net.dns: Make timeout configurable (default 15s) Matthew Wild <mwild1@gmail.com> parents: 3326 diff changeset	892 timer.add_task(self.timeout, function ()
3324 070c8ba71b76 net.dns: Handle our own timeouts, including falling onto other servers in resolv.conf if necessary Matthew Wild <mwild1@gmail.com> parents: 3057 diff changeset	893 if get(self.wanted, qclass, qtype, qname, co) then
10955 7bcfac630b65 net.dns: Add some debug logging Matthew Wild <mwild1@gmail.com> parents: 10664 diff changeset	894 log("debug", "DNS request timeout %d/%d", i, num_servers)
3324 070c8ba71b76 net.dns: Handle our own timeouts, including falling onto other servers in resolv.conf if necessary Matthew Wild <mwild1@gmail.com> parents: 3057 diff changeset	895 i = i + 1;
10956 03a09fa02e8e net.dns: Fix timeout retry logic Matthew Wild <mwild1@gmail.com> parents: 10955 diff changeset	896 self:servfail(self.socket[o.server]);
03a09fa02e8e net.dns: Fix timeout retry logic Matthew Wild <mwild1@gmail.com> parents: 10955 diff changeset	897 -- end
03a09fa02e8e net.dns: Fix timeout retry logic Matthew Wild <mwild1@gmail.com> parents: 10955 diff changeset	898 end
03a09fa02e8e net.dns: Fix timeout retry logic Matthew Wild <mwild1@gmail.com> parents: 10955 diff changeset	899 -- Still outstanding? (i.e. retried)
03a09fa02e8e net.dns: Fix timeout retry logic Matthew Wild <mwild1@gmail.com> parents: 10955 diff changeset	900 if get(self.wanted, qclass, qtype, qname, co) then
03a09fa02e8e net.dns: Fix timeout retry logic Matthew Wild <mwild1@gmail.com> parents: 10955 diff changeset	901 return self.timeout; -- Then wait
3324 070c8ba71b76 net.dns: Handle our own timeouts, including falling onto other servers in resolv.conf if necessary Matthew Wild <mwild1@gmail.com> parents: 3057 diff changeset	902 end
070c8ba71b76 net.dns: Handle our own timeouts, including falling onto other servers in resolv.conf if necessary Matthew Wild <mwild1@gmail.com> parents: 3057 diff changeset	903 end)
070c8ba71b76 net.dns: Handle our own timeouts, including falling onto other servers in resolv.conf if necessary Matthew Wild <mwild1@gmail.com> parents: 3057 diff changeset	904 end
3955 a096700d23d9 net.dns: resolver:query(): Handle getsocket() failures, and return true on success Matthew Wild <mwild1@gmail.com> parents: 3954 diff changeset	905 return true;
869 09019c452709 net.dns: Add methods necessary for allowing non-blocking DNS lookups Matthew Wild <mwild1@gmail.com> parents: 759 diff changeset	906 end
09019c452709 net.dns: Add methods necessary for allowing non-blocking DNS lookups Matthew Wild <mwild1@gmail.com> parents: 759 diff changeset	907
6509 7cb69eba3e95 net.dns: Try next server if peer name can not be set (thanks wirehack7) Kim Alvefur <zash@zash.se> parents: 6508 diff changeset	908 function resolver:servfail(sock, err)
2069 72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	909 -- Resend all queries for this server
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	910
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	911 local num = self.socketset[sock]
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	912
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	913 -- Socket is dead now
6508 4a28b8320d7f net.dns: Return new socket from servfail Kim Alvefur <zash@zash.se> parents: 6463 diff changeset	914 sock = self:voidsocket(sock);
2069 72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	915
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	916 -- Find all requests to the down server, and retry on the next server
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	917 self.time = socket.gettime();
10955 7bcfac630b65 net.dns: Add some debug logging Matthew Wild <mwild1@gmail.com> parents: 10664 diff changeset	918 log("debug", "servfail %d (of %d)", num, #self.server);
2069 72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	919 for id,queries in pairs(self.active) do
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	920 for question,o in pairs(queries) do
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	921 if o.server == num then -- This request was to the broken server
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	922 o.server = o.server + 1 -- Use next server
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	923 if o.server > #self.server then
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	924 o.server = 1;
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	925 end
337 4a1dd1c2c219 We have SRV resolving \o/ Matthew Wild <mwild1@gmail.com> parents: diff changeset	926
2069 72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	927 o.retries = (o.retries or 0) + 1;
10956 03a09fa02e8e net.dns: Fix timeout retry logic Matthew Wild <mwild1@gmail.com> parents: 10955 diff changeset	928 local retried;
03a09fa02e8e net.dns: Fix timeout retry logic Matthew Wild <mwild1@gmail.com> parents: 10955 diff changeset	929 if o.retries < #self.server then
03a09fa02e8e net.dns: Fix timeout retry logic Matthew Wild <mwild1@gmail.com> parents: 10955 diff changeset	930 sock, err = self:getsocket(o.server);
03a09fa02e8e net.dns: Fix timeout retry logic Matthew Wild <mwild1@gmail.com> parents: 10955 diff changeset	931 if sock then
03a09fa02e8e net.dns: Fix timeout retry logic Matthew Wild <mwild1@gmail.com> parents: 10955 diff changeset	932 retried = true;
10957 8902cecbdd39 net.dns: Add jitter to spread queries and reduce failures due to congestion Matthew Wild <mwild1@gmail.com> parents: 10956 diff changeset	933 if self.retry_jitter then
8902cecbdd39 net.dns: Add jitter to spread queries and reduce failures due to congestion Matthew Wild <mwild1@gmail.com> parents: 10956 diff changeset	934 local delay = self.delays[((o.retries-1)%#self.delays)+1] + (math.random()*self.retry_jitter);
8902cecbdd39 net.dns: Add jitter to spread queries and reduce failures due to congestion Matthew Wild <mwild1@gmail.com> parents: 10956 diff changeset	935 log("debug", "retry %d in %0.2fs", o.retries, delay);
8902cecbdd39 net.dns: Add jitter to spread queries and reduce failures due to congestion Matthew Wild <mwild1@gmail.com> parents: 10956 diff changeset	936 timer.add_task(delay, function ()
8902cecbdd39 net.dns: Add jitter to spread queries and reduce failures due to congestion Matthew Wild <mwild1@gmail.com> parents: 10956 diff changeset	937 sock:send(o.packet);
8902cecbdd39 net.dns: Add jitter to spread queries and reduce failures due to congestion Matthew Wild <mwild1@gmail.com> parents: 10956 diff changeset	938 end);
8902cecbdd39 net.dns: Add jitter to spread queries and reduce failures due to congestion Matthew Wild <mwild1@gmail.com> parents: 10956 diff changeset	939 else
10956 03a09fa02e8e net.dns: Fix timeout retry logic Matthew Wild <mwild1@gmail.com> parents: 10955 diff changeset	940 log("debug", "retry %d (immediate)", o.retries);
03a09fa02e8e net.dns: Fix timeout retry logic Matthew Wild <mwild1@gmail.com> parents: 10955 diff changeset	941 sock:send(o.packet);
10957 8902cecbdd39 net.dns: Add jitter to spread queries and reduce failures due to congestion Matthew Wild <mwild1@gmail.com> parents: 10956 diff changeset	942 end
10956 03a09fa02e8e net.dns: Fix timeout retry logic Matthew Wild <mwild1@gmail.com> parents: 10955 diff changeset	943 end
03a09fa02e8e net.dns: Fix timeout retry logic Matthew Wild <mwild1@gmail.com> parents: 10955 diff changeset	944 end
03a09fa02e8e net.dns: Fix timeout retry logic Matthew Wild <mwild1@gmail.com> parents: 10955 diff changeset	945 if not retried then
03a09fa02e8e net.dns: Fix timeout retry logic Matthew Wild <mwild1@gmail.com> parents: 10955 diff changeset	946 log("debug", 'tried all servers, giving up');
03a09fa02e8e net.dns: Fix timeout retry logic Matthew Wild <mwild1@gmail.com> parents: 10955 diff changeset	947 self:cancel(o.qclass, o.qtype, o.qname);
2069 72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	948 queries[question] = nil;
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	949 end
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	950 end
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	951 end
5266 5c3a3ef6b769 net.dns: Clean up query list when a server is marked down Matthew Wild <mwild1@gmail.com> parents: 4422 diff changeset	952 if next(queries) == nil then
5c3a3ef6b769 net.dns: Clean up query list when a server is marked down Matthew Wild <mwild1@gmail.com> parents: 4422 diff changeset	953 self.active[id] = nil;
5c3a3ef6b769 net.dns: Clean up query list when a server is marked down Matthew Wild <mwild1@gmail.com> parents: 4422 diff changeset	954 end
2069 72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	955 end
3540 bc139431830b Monster whitespace commit (beware the whitespace monster). Waqas Hussain <waqas20@gmail.com> parents: 3513 diff changeset	956
2069 72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	957 if num == self.best_server then
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	958 self.best_server = self.best_server + 1;
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	959 if self.best_server > #self.server then
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	960 -- Exhausted all servers, try first again
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	961 self.best_server = 1;
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	962 end
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	963 end
6509 7cb69eba3e95 net.dns: Try next server if peer name can not be set (thanks wirehack7) Kim Alvefur <zash@zash.se> parents: 6508 diff changeset	964 return sock, err;
1786 4016d8bc30b8 net.dns: Multiple internal changes and API extensions to allow for more reliable DNS lookups Matthew Wild <mwild1@gmail.com> parents: 1523 diff changeset	965 end
337 4a1dd1c2c219 We have SRV resolving \o/ Matthew Wild <mwild1@gmail.com> parents: diff changeset	966
3327 b447682f2a8d net.dns: Make timeout configurable (default 15s) Matthew Wild <mwild1@gmail.com> parents: 3326 diff changeset	967 function resolver:settimeout(seconds)
b447682f2a8d net.dns: Make timeout configurable (default 15s) Matthew Wild <mwild1@gmail.com> parents: 3326 diff changeset	968 self.timeout = seconds;
b447682f2a8d net.dns: Make timeout configurable (default 15s) Matthew Wild <mwild1@gmail.com> parents: 3326 diff changeset	969 end
b447682f2a8d net.dns: Make timeout configurable (default 15s) Matthew Wild <mwild1@gmail.com> parents: 3326 diff changeset	970
2069 72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	971 function resolver:receive(rset) -- - - - - - - - - - - - - - - - - receive
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	972 --print('receive'); print(self.socket);
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	973 self.time = socket.gettime();
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	974 rset = rset or self.socket;
337 4a1dd1c2c219 We have SRV resolving \o/ Matthew Wild <mwild1@gmail.com> parents: diff changeset	975
2069 72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	976 local response;
7469 363e4a5e9b0a net.dns: remove unused one-letter loop variables [luacheck] Anton Shestakov <av6@dwimlabs.net> parents: 7322 diff changeset	977 for _, sock in pairs(rset) do
337 4a1dd1c2c219 We have SRV resolving \o/ Matthew Wild <mwild1@gmail.com> parents: diff changeset	978
2069 72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	979 if self.socketset[sock] then
2619 04158baefa34 net.dns: Update for new socket API Matthew Wild <mwild1@gmail.com> parents: 2578 diff changeset	980 local packet = sock:receive();
2069 72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	981 if packet then
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	982 response = self:decode(packet);
2278 8c10f13c0c20 modulemanager, net.dns: Remove trailing whitespace Matthew Wild <mwild1@gmail.com> parents: 2082 diff changeset	983 if response and self.active[response.header.id]
2081 b9bbb709d62e net.dns: Be more strict about checking the DNS replies we receive Matthew Wild <mwild1@gmail.com> parents: 2069 diff changeset	984 and self.active[response.header.id][response.question.raw] then
2069 72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	985 --print('received response');
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	986 --self.print(response);
337 4a1dd1c2c219 We have SRV resolving \o/ Matthew Wild <mwild1@gmail.com> parents: diff changeset	987
7469 363e4a5e9b0a net.dns: remove unused one-letter loop variables [luacheck] Anton Shestakov <av6@dwimlabs.net> parents: 7322 diff changeset	988 for _, rr in pairs(response.answer) do
7059 7ec52755622f Backout 88d54bec26b7 prior to release, as it certainly requires more testing Matthew Wild <mwild1@gmail.com> parents: 7056 diff changeset	989 if rr.name:sub(-#response.question[1].name, -1) == response.question[1].name then
7ec52755622f Backout 88d54bec26b7 prior to release, as it certainly requires more testing Matthew Wild <mwild1@gmail.com> parents: 7056 diff changeset	990 self:remember(rr, response.question[1].type)
7ec52755622f Backout 88d54bec26b7 prior to release, as it certainly requires more testing Matthew Wild <mwild1@gmail.com> parents: 7056 diff changeset	991 end
2069 72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	992 end
337 4a1dd1c2c219 We have SRV resolving \o/ Matthew Wild <mwild1@gmail.com> parents: diff changeset	993
2069 72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	994 -- retire the query
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	995 local queries = self.active[response.header.id];
2082 1381b2071c2e net.dns: Be more strict about the records we cache Matthew Wild <mwild1@gmail.com> parents: 2081 diff changeset	996 queries[response.question.raw] = nil;
1381b2071c2e net.dns: Be more strict about the records we cache Matthew Wild <mwild1@gmail.com> parents: 2081 diff changeset	997
2069 72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	998 if not next(queries) then self.active[response.header.id] = nil; end
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	999 if not next(self.active) then self:closeall(); end
337 4a1dd1c2c219 We have SRV resolving \o/ Matthew Wild <mwild1@gmail.com> parents: diff changeset	1000
2069 72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	1001 -- was the query on the wanted list?
2301 8a01b0898679 net.dns: Fix for blocking dns lookups to find waiting coroutines correctly (not that we use this in Prosody...) Matthew Wild <mwild1@gmail.com> parents: 2300 diff changeset	1002 local q = response.question[1];
2069 72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	1003 local cos = get(self.wanted, q.class, q.type, q.name);
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	1004 if cos then
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	1005 for co in pairs(cos) do
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	1006 if coroutine.status(co) == "suspended" then coroutine.resume(co); end
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	1007 end
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	1008 set(self.wanted, q.class, q.type, q.name, nil);
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	1009 end
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	1010 end
5266 5c3a3ef6b769 net.dns: Clean up query list when a server is marked down Matthew Wild <mwild1@gmail.com> parents: 4422 diff changeset	1011
2069 72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	1012 end
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	1013 end
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	1014 end
337 4a1dd1c2c219 We have SRV resolving \o/ Matthew Wild <mwild1@gmail.com> parents: diff changeset	1015
2069 72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	1016 return response;
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	1017 end
337 4a1dd1c2c219 We have SRV resolving \o/ Matthew Wild <mwild1@gmail.com> parents: diff changeset	1018
4a1dd1c2c219 We have SRV resolving \o/ Matthew Wild <mwild1@gmail.com> parents: diff changeset	1019
3512 e344b00f2cc9 net.dns: Add 'force' parameter to resolver:feed() to force decoding a packet even if it doesn't match an outstanding request Matthew Wild <mwild1@gmail.com> parents: 3360 diff changeset	1020 function resolver:feed(sock, packet, force)
2069 72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	1021 --print('receive'); print(self.socket);
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	1022 self.time = socket.gettime();
869 09019c452709 net.dns: Add methods necessary for allowing non-blocking DNS lookups Matthew Wild <mwild1@gmail.com> parents: 759 diff changeset	1023
3512 e344b00f2cc9 net.dns: Add 'force' parameter to resolver:feed() to force decoding a packet even if it doesn't match an outstanding request Matthew Wild <mwild1@gmail.com> parents: 3360 diff changeset	1024 local response = self:decode(packet, force);
2300 e182b5029ef2 net.dns: Port some DNS fixes to the resolver:feed() function for net.adns to use Matthew Wild <mwild1@gmail.com> parents: 2278 diff changeset	1025 if response and self.active[response.header.id]
e182b5029ef2 net.dns: Port some DNS fixes to the resolver:feed() function for net.adns to use Matthew Wild <mwild1@gmail.com> parents: 2278 diff changeset	1026 and self.active[response.header.id][response.question.raw] then
2069 72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	1027 --print('received response');
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	1028 --self.print(response);
869 09019c452709 net.dns: Add methods necessary for allowing non-blocking DNS lookups Matthew Wild <mwild1@gmail.com> parents: 759 diff changeset	1029
7469 363e4a5e9b0a net.dns: remove unused one-letter loop variables [luacheck] Anton Shestakov <av6@dwimlabs.net> parents: 7322 diff changeset	1030 for _, rr in pairs(response.answer) do
8897 102242a7ee60 net.dns: Cache all records from the 'answer' section (fixes #487) Kim Alvefur <zash@zash.se> parents: 8421 diff changeset	1031 self:remember(rr, rr.type);
2069 72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	1032 end
869 09019c452709 net.dns: Add methods necessary for allowing non-blocking DNS lookups Matthew Wild <mwild1@gmail.com> parents: 759 diff changeset	1033
8898 e6ba0e5260b4 net.dns: Also cache records from the 'additional' section Kim Alvefur <zash@zash.se> parents: 8897 diff changeset	1034 for _, rr in pairs(response.additional) do
e6ba0e5260b4 net.dns: Also cache records from the 'additional' section Kim Alvefur <zash@zash.se> parents: 8897 diff changeset	1035 self:remember(rr, rr.type);
e6ba0e5260b4 net.dns: Also cache records from the 'additional' section Kim Alvefur <zash@zash.se> parents: 8897 diff changeset	1036 end
e6ba0e5260b4 net.dns: Also cache records from the 'additional' section Kim Alvefur <zash@zash.se> parents: 8897 diff changeset	1037
2069 72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	1038 -- retire the query
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	1039 local queries = self.active[response.header.id];
2300 e182b5029ef2 net.dns: Port some DNS fixes to the resolver:feed() function for net.adns to use Matthew Wild <mwild1@gmail.com> parents: 2278 diff changeset	1040 queries[response.question.raw] = nil;
2069 72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	1041 if not next(queries) then self.active[response.header.id] = nil; end
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	1042 if not next(self.active) then self:closeall(); end
869 09019c452709 net.dns: Add methods necessary for allowing non-blocking DNS lookups Matthew Wild <mwild1@gmail.com> parents: 759 diff changeset	1043
2069 72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	1044 -- was the query on the wanted list?
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	1045 local q = response.question[1];
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	1046 if q then
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	1047 local cos = get(self.wanted, q.class, q.type, q.name);
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	1048 if cos then
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	1049 for co in pairs(cos) do
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	1050 if coroutine.status(co) == "suspended" then coroutine.resume(co); end
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	1051 end
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	1052 set(self.wanted, q.class, q.type, q.name, nil);
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	1053 end
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	1054 end
2742 6c0a081cd766 net.dns: Trailing whitespace Matthew Wild <mwild1@gmail.com> parents: 2741 diff changeset	1055 end
869 09019c452709 net.dns: Add methods necessary for allowing non-blocking DNS lookups Matthew Wild <mwild1@gmail.com> parents: 759 diff changeset	1056
2069 72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	1057 return response;
869 09019c452709 net.dns: Add methods necessary for allowing non-blocking DNS lookups Matthew Wild <mwild1@gmail.com> parents: 759 diff changeset	1058 end
09019c452709 net.dns: Add methods necessary for allowing non-blocking DNS lookups Matthew Wild <mwild1@gmail.com> parents: 759 diff changeset	1059
6309 b6f76a52eb36 net.dns: Ensure all pending requests get notified of a timeout when looking up a record (fix for d122420542fb) Matthew Wild <mwild1@gmail.com> parents: 6288 diff changeset	1060 function resolver:cancel(qclass, qtype, qname)
3326 fb95015bc646 net.dns, net.adns: Update resolver:cancel() API so that a table doesn't need to be created for each cancellation internal to net.dns Matthew Wild <mwild1@gmail.com> parents: 3325 diff changeset	1061 local cos = get(self.wanted, qclass, qtype, qname);
1202 e69fafc14491 net.dns: Add support for cancelling a coroutine-based request Matthew Wild <mwild1@gmail.com> parents: 896 diff changeset	1062 if cos then
6309 b6f76a52eb36 net.dns: Ensure all pending requests get notified of a timeout when looking up a record (fix for d122420542fb) Matthew Wild <mwild1@gmail.com> parents: 6288 diff changeset	1063 for co in pairs(cos) do
b6f76a52eb36 net.dns: Ensure all pending requests get notified of a timeout when looking up a record (fix for d122420542fb) Matthew Wild <mwild1@gmail.com> parents: 6288 diff changeset	1064 if coroutine.status(co) == "suspended" then coroutine.resume(co); end
3325 b3117a1da834 net.dns, net.adns: Move coroutine-calling logic into resolver:cancel() Matthew Wild <mwild1@gmail.com> parents: 3324 diff changeset	1065 end
6309 b6f76a52eb36 net.dns: Ensure all pending requests get notified of a timeout when looking up a record (fix for d122420542fb) Matthew Wild <mwild1@gmail.com> parents: 6288 diff changeset	1066 set(self.wanted, qclass, qtype, qname, nil);
1202 e69fafc14491 net.dns: Add support for cancelling a coroutine-based request Matthew Wild <mwild1@gmail.com> parents: 896 diff changeset	1067 end
e69fafc14491 net.dns: Add support for cancelling a coroutine-based request Matthew Wild <mwild1@gmail.com> parents: 896 diff changeset	1068 end
869 09019c452709 net.dns: Add methods necessary for allowing non-blocking DNS lookups Matthew Wild <mwild1@gmail.com> parents: 759 diff changeset	1069
2069 72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	1070 function resolver:pulse() -- - - - - - - - - - - - - - - - - - - - - pulse
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	1071 --print(':pulse');
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	1072 while self:receive() do end
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	1073 if not next(self.active) then return nil; end
337 4a1dd1c2c219 We have SRV resolving \o/ Matthew Wild <mwild1@gmail.com> parents: diff changeset	1074
2069 72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	1075 self.time = socket.gettime();
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	1076 for id,queries in pairs(self.active) do
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	1077 for question,o in pairs(queries) do
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	1078 if self.time >= o.retry then
337 4a1dd1c2c219 We have SRV resolving \o/ Matthew Wild <mwild1@gmail.com> parents: diff changeset	1079
2069 72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	1080 o.server = o.server + 1;
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	1081 if o.server > #self.server then
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	1082 o.server = 1;
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	1083 o.delay = o.delay + 1;
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	1084 end
337 4a1dd1c2c219 We have SRV resolving \o/ Matthew Wild <mwild1@gmail.com> parents: diff changeset	1085
2069 72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	1086 if o.delay > #self.delays then
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	1087 --print('timeout');
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	1088 queries[question] = nil;
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	1089 if not next(queries) then self.active[id] = nil; end
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	1090 if not next(self.active) then return nil; end
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	1091 else
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	1092 --print('retry', o.server, o.delay);
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	1093 local _a = self.socket[o.server];
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	1094 if _a then _a:send(o.packet); end
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	1095 o.retry = self.time + self.delays[o.delay];
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	1096 end
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	1097 end
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	1098 end
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	1099 end
337 4a1dd1c2c219 We have SRV resolving \o/ Matthew Wild <mwild1@gmail.com> parents: diff changeset	1100
2069 72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	1101 if next(self.active) then return true; end
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	1102 return nil;
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	1103 end
337 4a1dd1c2c219 We have SRV resolving \o/ Matthew Wild <mwild1@gmail.com> parents: diff changeset	1104
4a1dd1c2c219 We have SRV resolving \o/ Matthew Wild <mwild1@gmail.com> parents: diff changeset	1105
2069 72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	1106 function resolver:lookup(qname, qtype, qclass) -- - - - - - - - - - lookup
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	1107 self:query (qname, qtype, qclass)
3049 e54774bd73a7 net/dns: Fix socket.select timeout. Brian Cully <bjc@junctionnetworks.com> parents: 2742 diff changeset	1108 while self:pulse() do
3540 bc139431830b Monster whitespace commit (beware the whitespace monster). Waqas Hussain <waqas20@gmail.com> parents: 3513 diff changeset	1109 local recvt = {}
bc139431830b Monster whitespace commit (beware the whitespace monster). Waqas Hussain <waqas20@gmail.com> parents: 3513 diff changeset	1110 for i, s in ipairs(self.socket) do
bc139431830b Monster whitespace commit (beware the whitespace monster). Waqas Hussain <waqas20@gmail.com> parents: 3513 diff changeset	1111 recvt[i] = s
bc139431830b Monster whitespace commit (beware the whitespace monster). Waqas Hussain <waqas20@gmail.com> parents: 3513 diff changeset	1112 end
bc139431830b Monster whitespace commit (beware the whitespace monster). Waqas Hussain <waqas20@gmail.com> parents: 3513 diff changeset	1113 socket.select(recvt, nil, 4)
bc139431830b Monster whitespace commit (beware the whitespace monster). Waqas Hussain <waqas20@gmail.com> parents: 3513 diff changeset	1114 end
2069 72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	1115 --print(self.cache);
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	1116 return self:peek(qname, qtype, qclass);
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	1117 end
337 4a1dd1c2c219 We have SRV resolving \o/ Matthew Wild <mwild1@gmail.com> parents: diff changeset	1118
2069 72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	1119 function resolver:lookupex(handler, qname, qtype, qclass) -- - - - - - - - - - lookup
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	1120 return self:peek(qname, qtype, qclass) or self:query(qname, qtype, qclass);
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	1121 end
337 4a1dd1c2c219 We have SRV resolving \o/ Matthew Wild <mwild1@gmail.com> parents: diff changeset	1122
3746 9719316c854e net.dns: Add resolver:tohostname() and dns.tohostname() Matthew Wild <mwild1@gmail.com> parents: 3719 diff changeset	1123 function resolver:tohostname(ip)
9719316c854e net.dns: Add resolver:tohostname() and dns.tohostname() Matthew Wild <mwild1@gmail.com> parents: 3719 diff changeset	1124 return dns.lookup(ip:gsub("(%d+)%.(%d+)%.(%d+)%.(%d+)", "%4.%3.%2.%1.in-addr.arpa."), "PTR");
9719316c854e net.dns: Add resolver:tohostname() and dns.tohostname() Matthew Wild <mwild1@gmail.com> parents: 3719 diff changeset	1125 end
869 09019c452709 net.dns: Add methods necessary for allowing non-blocking DNS lookups Matthew Wild <mwild1@gmail.com> parents: 759 diff changeset	1126
09019c452709 net.dns: Add methods necessary for allowing non-blocking DNS lookups Matthew Wild <mwild1@gmail.com> parents: 759 diff changeset	1127 --print ---------------------------------------------------------------- print
337 4a1dd1c2c219 We have SRV resolving \o/ Matthew Wild <mwild1@gmail.com> parents: diff changeset	1128
4a1dd1c2c219 We have SRV resolving \o/ Matthew Wild <mwild1@gmail.com> parents: diff changeset	1129
4a1dd1c2c219 We have SRV resolving \o/ Matthew Wild <mwild1@gmail.com> parents: diff changeset	1130 local hints = { -- - - - - - - - - - - - - - - - - - - - - - - - - - - hints
2069 72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	1131 qr = { [0]='query', 'response' },
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	1132 opcode = { [0]='query', 'inverse query', 'server status request' },
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	1133 aa = { [0]='non-authoritative', 'authoritative' },
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	1134 tc = { [0]='complete', 'truncated' },
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	1135 rd = { [0]='recursion not desired', 'recursion desired' },
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	1136 ra = { [0]='recursion not available', 'recursion available' },
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	1137 z = { [0]='(reserved)' },
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	1138 rcode = { [0]='no error', 'format error', 'server failure', 'name error', 'not implemented' },
337 4a1dd1c2c219 We have SRV resolving \o/ Matthew Wild <mwild1@gmail.com> parents: diff changeset	1139
2069 72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	1140 type = dns.type,
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	1141 class = dns.class
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	1142 };
337 4a1dd1c2c219 We have SRV resolving \o/ Matthew Wild <mwild1@gmail.com> parents: diff changeset	1143
4a1dd1c2c219 We have SRV resolving \o/ Matthew Wild <mwild1@gmail.com> parents: diff changeset	1144
2069 72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	1145 local function hint(p, s) -- - - - - - - - - - - - - - - - - - - - - - hint
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	1146 return (hints[s] and hints[s][p[s]]) or '';
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	1147 end
337 4a1dd1c2c219 We have SRV resolving \o/ Matthew Wild <mwild1@gmail.com> parents: diff changeset	1148
4a1dd1c2c219 We have SRV resolving \o/ Matthew Wild <mwild1@gmail.com> parents: diff changeset	1149
2069 72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	1150 function resolver.print(response) -- - - - - - - - - - - - - resolver.print
7480 3dc7de31d3d1 net.dns: don't use "for s,s in pairs..." (unused loop variable s) [luacheck] Anton Shestakov <av6@dwimlabs.net> parents: 7469 diff changeset	1151 for _, s in pairs { 'id', 'qr', 'opcode', 'aa', 'tc', 'rd', 'ra', 'z',
2069 72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	1152 'rcode', 'qdcount', 'ancount', 'nscount', 'arcount' } do
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	1153 print( string.format('%-30s', 'header.'..s), response.header[s], hint(response.header, s) );
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	1154 end
337 4a1dd1c2c219 We have SRV resolving \o/ Matthew Wild <mwild1@gmail.com> parents: diff changeset	1155
2069 72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	1156 for i,question in ipairs(response.question) do
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	1157 print(string.format ('question[%i].name ', i), question.name);
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	1158 print(string.format ('question[%i].type ', i), question.type);
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	1159 print(string.format ('question[%i].class ', i), question.class);
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	1160 end
337 4a1dd1c2c219 We have SRV resolving \o/ Matthew Wild <mwild1@gmail.com> parents: diff changeset	1161
2069 72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	1162 local common = { name=1, type=1, class=1, ttl=1, rdlength=1, rdata=1 };
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	1163 local tmp;
7480 3dc7de31d3d1 net.dns: don't use "for s,s in pairs..." (unused loop variable s) [luacheck] Anton Shestakov <av6@dwimlabs.net> parents: 7469 diff changeset	1164 for _, s in pairs({'answer', 'authority', 'additional'}) do
2069 72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	1165 for i,rr in pairs(response[s]) do
7500 4c519444d4a2 net.dns: remove unused one-letter loop variables [luacheck] Anton Shestakov <av6@dwimlabs.net> parents: 7480 diff changeset	1166 for _, t in pairs({ 'name', 'type', 'class', 'ttl', 'rdlength' }) do
2069 72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	1167 tmp = string.format('%s[%i].%s', s, i, t);
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	1168 print(string.format('%-30s', tmp), rr[t], hint(rr, t));
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	1169 end
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	1170 for j,t in pairs(rr) do
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	1171 if not common[j] then
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	1172 tmp = string.format('%s[%i].%s', s, i, j);
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	1173 print(string.format('%-30s %s', tostring(tmp), tostring(t)));
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	1174 end
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	1175 end
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	1176 end
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	1177 end
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	1178 end
337 4a1dd1c2c219 We have SRV resolving \o/ Matthew Wild <mwild1@gmail.com> parents: diff changeset	1179
4a1dd1c2c219 We have SRV resolving \o/ Matthew Wild <mwild1@gmail.com> parents: diff changeset	1180
4a1dd1c2c219 We have SRV resolving \o/ Matthew Wild <mwild1@gmail.com> parents: diff changeset	1181 -- module api ------------------------------------------------------ module api
4a1dd1c2c219 We have SRV resolving \o/ Matthew Wild <mwild1@gmail.com> parents: diff changeset	1182
4a1dd1c2c219 We have SRV resolving \o/ Matthew Wild <mwild1@gmail.com> parents: diff changeset	1183
4a1dd1c2c219 We have SRV resolving \o/ Matthew Wild <mwild1@gmail.com> parents: diff changeset	1184 function dns.resolver () -- - - - - - - - - - - - - - - - - - - - - resolver
6310 d232bb1bbe1e net.dns: Remove unused obsolete code Matthew Wild <mwild1@gmail.com> parents: 6309 diff changeset	1185 local r = { active = {}, cache = {}, unsorted = {}, wanted = {}, best_server = 1 };
2069 72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	1186 setmetatable (r, resolver);
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	1187 setmetatable (r.cache, cache_metatable);
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	1188 setmetatable (r.unsorted, { __mode = 'kv' });
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	1189 return r;
72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	1190 end
337 4a1dd1c2c219 We have SRV resolving \o/ Matthew Wild <mwild1@gmail.com> parents: diff changeset	1191
2573 60493186fef6 net.dns: Removed some useless indirection to improve readability. Waqas Hussain <waqas20@gmail.com> parents: 2425 diff changeset	1192 local _resolver = dns.resolver();
60493186fef6 net.dns: Removed some useless indirection to improve readability. Waqas Hussain <waqas20@gmail.com> parents: 2425 diff changeset	1193 dns._resolver = _resolver;
10976 540f1bc5f082 net.dns: Disable jitter for default resolver (used by blocking dns.lookup() calls) Matthew Wild <mwild1@gmail.com> parents: 10959 diff changeset	1194 _resolver.jitter, _resolver.retry_jitter = false, false;
337 4a1dd1c2c219 We have SRV resolving \o/ Matthew Wild <mwild1@gmail.com> parents: diff changeset	1195
2069 72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	1196 function dns.lookup(...) -- - - - - - - - - - - - - - - - - - - - - lookup
2573 60493186fef6 net.dns: Removed some useless indirection to improve readability. Waqas Hussain <waqas20@gmail.com> parents: 2425 diff changeset	1197 return _resolver:lookup(...);
2069 72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	1198 end
337 4a1dd1c2c219 We have SRV resolving \o/ Matthew Wild <mwild1@gmail.com> parents: diff changeset	1199
3746 9719316c854e net.dns: Add resolver:tohostname() and dns.tohostname() Matthew Wild <mwild1@gmail.com> parents: 3719 diff changeset	1200 function dns.tohostname(...)
9719316c854e net.dns: Add resolver:tohostname() and dns.tohostname() Matthew Wild <mwild1@gmail.com> parents: 3719 diff changeset	1201 return _resolver:tohostname(...);
9719316c854e net.dns: Add resolver:tohostname() and dns.tohostname() Matthew Wild <mwild1@gmail.com> parents: 3719 diff changeset	1202 end
9719316c854e net.dns: Add resolver:tohostname() and dns.tohostname() Matthew Wild <mwild1@gmail.com> parents: 3719 diff changeset	1203
2069 72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	1204 function dns.purge(...) -- - - - - - - - - - - - - - - - - - - - - - purge
2573 60493186fef6 net.dns: Removed some useless indirection to improve readability. Waqas Hussain <waqas20@gmail.com> parents: 2425 diff changeset	1205 return _resolver:purge(...);
2069 72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	1206 end
337 4a1dd1c2c219 We have SRV resolving \o/ Matthew Wild <mwild1@gmail.com> parents: diff changeset	1207
2069 72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	1208 function dns.peek(...) -- - - - - - - - - - - - - - - - - - - - - - - peek
2573 60493186fef6 net.dns: Removed some useless indirection to improve readability. Waqas Hussain <waqas20@gmail.com> parents: 2425 diff changeset	1209 return _resolver:peek(...);
2069 72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	1210 end
337 4a1dd1c2c219 We have SRV resolving \o/ Matthew Wild <mwild1@gmail.com> parents: diff changeset	1211
2069 72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	1212 function dns.query(...) -- - - - - - - - - - - - - - - - - - - - - - query
2573 60493186fef6 net.dns: Removed some useless indirection to improve readability. Waqas Hussain <waqas20@gmail.com> parents: 2425 diff changeset	1213 return _resolver:query(...);
2069 72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	1214 end
337 4a1dd1c2c219 We have SRV resolving \o/ Matthew Wild <mwild1@gmail.com> parents: diff changeset	1215
2575 8f4d69940132 net.dns: Fixed whitespace/indentation. Waqas Hussain <waqas20@gmail.com> parents: 2574 diff changeset	1216 function dns.feed(...) -- - - - - - - - - - - - - - - - - - - - - - - feed
2573 60493186fef6 net.dns: Removed some useless indirection to improve readability. Waqas Hussain <waqas20@gmail.com> parents: 2425 diff changeset	1217 return _resolver:feed(...);
2069 72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	1218 end
869 09019c452709 net.dns: Add methods necessary for allowing non-blocking DNS lookups Matthew Wild <mwild1@gmail.com> parents: 759 diff changeset	1219
2575 8f4d69940132 net.dns: Fixed whitespace/indentation. Waqas Hussain <waqas20@gmail.com> parents: 2574 diff changeset	1220 function dns.cancel(...) -- - - - - - - - - - - - - - - - - - - - - - cancel
2573 60493186fef6 net.dns: Removed some useless indirection to improve readability. Waqas Hussain <waqas20@gmail.com> parents: 2425 diff changeset	1221 return _resolver:cancel(...);
2069 72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	1222 end
337 4a1dd1c2c219 We have SRV resolving \o/ Matthew Wild <mwild1@gmail.com> parents: diff changeset	1223
3328 5ac4fbbfb74d net.dns: Add dns.settimeout() to set the timeout for the default resolver Matthew Wild <mwild1@gmail.com> parents: 3327 diff changeset	1224 function dns.settimeout(...)
5ac4fbbfb74d net.dns: Add dns.settimeout() to set the timeout for the default resolver Matthew Wild <mwild1@gmail.com> parents: 3327 diff changeset	1225 return _resolver:settimeout(...);
5ac4fbbfb74d net.dns: Add dns.settimeout() to set the timeout for the default resolver Matthew Wild <mwild1@gmail.com> parents: 3327 diff changeset	1226 end
5ac4fbbfb74d net.dns: Add dns.settimeout() to set the timeout for the default resolver Matthew Wild <mwild1@gmail.com> parents: 3327 diff changeset	1227
5566 74ae3e7e8779 net.dns: Add nicer API to cached records Kim Alvefur <zash@zash.se> parents: 5340 diff changeset	1228 function dns.cache()
74ae3e7e8779 net.dns: Add nicer API to cached records Kim Alvefur <zash@zash.se> parents: 5340 diff changeset	1229 return _resolver.cache;
74ae3e7e8779 net.dns: Add nicer API to cached records Kim Alvefur <zash@zash.se> parents: 5340 diff changeset	1230 end
74ae3e7e8779 net.dns: Add nicer API to cached records Kim Alvefur <zash@zash.se> parents: 5340 diff changeset	1231
2578 61e5eff54415 net.dns, net.adns: Changed dns:socket_wrapper_set to dns.socket_wrapper_set for consistency. Waqas Hussain <waqas20@gmail.com> parents: 2575 diff changeset	1232 function dns.socket_wrapper_set(...) -- - - - - - - - - socket_wrapper_set
2573 60493186fef6 net.dns: Removed some useless indirection to improve readability. Waqas Hussain <waqas20@gmail.com> parents: 2425 diff changeset	1233 return _resolver:socket_wrapper_set(...);
2069 72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	1234 end
337 4a1dd1c2c219 We have SRV resolving \o/ Matthew Wild <mwild1@gmail.com> parents: diff changeset	1235
2069 72357b1c6d88 net.dns: Fixed indentation and coding style. Waqas Hussain <waqas20@gmail.com> parents: 2068 diff changeset	1236 return dns;

prosody

c1d2bc6603ae

net/dns.lua

Software / code / prosody

Annotate

net/dns.lua @ 12095:c1d2bc6603ae

Software `/` code `/` prosody