Software `/` code `/` prosody

Annotate

net/dns.lua @ 11749:83d6d6a70edf

net.http: fail open if surrounding code does not configure TLS Previously, if surrounding code was not configuring the TLS context used default in net.http, it would not validate certificates at all. This is not a security issue with prosody, because prosody updates the context with `verify = "peer"` as well as paths to CA certificates in util.startup.init_http_client. Nevertheless... Let's not leave this pitfall out there in the open.

author	Jonas Schäfer <jonas@wielicki.name>
date	Sun, 29 Aug 2021 15:04:47 +0200
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

83d6d6a70edf

net/dns.lua

Software / code / prosody

Annotate

net/dns.lua @ 11749:83d6d6a70edf

Software `/` code `/` prosody