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util/dnsregistry.lua @ 13186:affaf6d08d26
util.datamanager: Pad list writes to avoid crossing block boundaries
By padding items so that they do not cross block boundaries, it becomes
eaiser to delete whole blocks with fallocate() without cutting items
in half, improving efficiency of such operations.
Since list stores are used for message archives, where the most common
deletion operation would be of the oldest entires, at the top of the
file. With this, all blocks that contain items to be removed could be
deleted without needing to read, delete and write out the whole file.
author | Kim Alvefur <zash@zash.se> |
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date | Wed, 07 Jun 2023 00:39:30 +0200 |
parent | 12856:89bc598c7051 |
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-- Source: https://www.iana.org/assignments/dns-parameters/dns-parameters.xml -- Generated on 2023-01-20 return { classes = { ["IN"] = 1; [1] = "IN"; ["CH"] = 3; [3] = "CH"; ["HS"] = 4; [4] = "HS"; ["ANY"] = 255; [255] = "ANY"; }; types = { ["A"] = 1; [1] = "A"; ["NS"] = 2; [2] = "NS"; ["MD"] = 3; [3] = "MD"; ["MF"] = 4; [4] = "MF"; ["CNAME"] = 5; [5] = "CNAME"; ["SOA"] = 6; [6] = "SOA"; ["MB"] = 7; [7] = "MB"; ["MG"] = 8; [8] = "MG"; ["MR"] = 9; [9] = "MR"; ["NULL"] = 10; [10] = "NULL"; ["WKS"] = 11; [11] = "WKS"; ["PTR"] = 12; [12] = "PTR"; ["HINFO"] = 13; [13] = "HINFO"; ["MINFO"] = 14; [14] = "MINFO"; ["MX"] = 15; [15] = "MX"; ["TXT"] = 16; [16] = "TXT"; ["RP"] = 17; [17] = "RP"; ["AFSDB"] = 18; [18] = "AFSDB"; ["X25"] = 19; [19] = "X25"; ["ISDN"] = 20; [20] = "ISDN"; ["RT"] = 21; [21] = "RT"; ["NSAP"] = 22; [22] = "NSAP"; ["NSAP-PTR"] = 23; [23] = "NSAP-PTR"; ["SIG"] = 24; [24] = "SIG"; ["KEY"] = 25; [25] = "KEY"; ["PX"] = 26; [26] = "PX"; ["GPOS"] = 27; [27] = "GPOS"; ["AAAA"] = 28; [28] = "AAAA"; ["LOC"] = 29; [29] = "LOC"; ["NXT"] = 30; [30] = "NXT"; ["EID"] = 31; [31] = "EID"; ["NIMLOC"] = 32; [32] = "NIMLOC"; ["SRV"] = 33; [33] = "SRV"; ["ATMA"] = 34; [34] = "ATMA"; ["NAPTR"] = 35; [35] = "NAPTR"; ["KX"] = 36; [36] = "KX"; ["CERT"] = 37; [37] = "CERT"; ["A6"] = 38; [38] = "A6"; ["DNAME"] = 39; [39] = "DNAME"; ["SINK"] = 40; [40] = "SINK"; ["OPT"] = 41; [41] = "OPT"; ["APL"] = 42; [42] = "APL"; ["DS"] = 43; [43] = "DS"; ["SSHFP"] = 44; [44] = "SSHFP"; ["IPSECKEY"] = 45; [45] = "IPSECKEY"; ["RRSIG"] = 46; [46] = "RRSIG"; ["NSEC"] = 47; [47] = "NSEC"; ["DNSKEY"] = 48; [48] = "DNSKEY"; ["DHCID"] = 49; [49] = "DHCID"; ["NSEC3"] = 50; [50] = "NSEC3"; ["NSEC3PARAM"] = 51; [51] = "NSEC3PARAM"; ["TLSA"] = 52; [52] = "TLSA"; ["SMIMEA"] = 53; [53] = "SMIMEA"; ["HIP"] = 55; [55] = "HIP"; ["NINFO"] = 56; [56] = "NINFO"; ["RKEY"] = 57; [57] = "RKEY"; ["TALINK"] = 58; [58] = "TALINK"; ["CDS"] = 59; [59] = "CDS"; ["CDNSKEY"] = 60; [60] = "CDNSKEY"; ["OPENPGPKEY"] = 61; [61] = "OPENPGPKEY"; ["CSYNC"] = 62; [62] = "CSYNC"; ["ZONEMD"] = 63; [63] = "ZONEMD"; ["SVCB"] = 64; [64] = "SVCB"; ["HTTPS"] = 65; [65] = "HTTPS"; ["SPF"] = 99; [99] = "SPF"; ["NID"] = 104; [104] = "NID"; ["L32"] = 105; [105] = "L32"; ["L64"] = 106; [106] = "L64"; ["LP"] = 107; [107] = "LP"; ["EUI48"] = 108; [108] = "EUI48"; ["EUI64"] = 109; [109] = "EUI64"; ["TKEY"] = 249; [249] = "TKEY"; ["TSIG"] = 250; [250] = "TSIG"; ["IXFR"] = 251; [251] = "IXFR"; ["AXFR"] = 252; [252] = "AXFR"; ["MAILB"] = 253; [253] = "MAILB"; ["MAILA"] = 254; [254] = "MAILA"; ["*"] = 255; [255] = "*"; ["URI"] = 256; [256] = "URI"; ["CAA"] = 257; [257] = "CAA"; ["AVC"] = 258; [258] = "AVC"; ["DOA"] = 259; [259] = "DOA"; ["AMTRELAY"] = 260; [260] = "AMTRELAY"; ["TA"] = 32768; [32768] = "TA"; ["DLV"] = 32769; [32769] = "DLV"; }; errors = { [0] = "NoError"; ["NoError"] = "No Error"; [1] = "FormErr"; ["FormErr"] = "Format Error"; [2] = "ServFail"; ["ServFail"] = "Server Failure"; [3] = "NXDomain"; ["NXDomain"] = "Non-Existent Domain"; [4] = "NotImp"; ["NotImp"] = "Not Implemented"; [5] = "Refused"; ["Refused"] = "Query Refused"; [6] = "YXDomain"; ["YXDomain"] = "Name Exists when it should not"; [7] = "YXRRSet"; ["YXRRSet"] = "RR Set Exists when it should not"; [8] = "NXRRSet"; ["NXRRSet"] = "RR Set that should exist does not"; [9] = "NotAuth"; ["NotAuth"] = "Server Not Authoritative for zone"; -- [9] = "NotAuth"; ["NotAuth"] = "Not Authorized"; [10] = "NotZone"; ["NotZone"] = "Name not contained in zone"; [11] = "DSOTYPENI"; ["DSOTYPENI"] = "DSO-TYPE Not Implemented"; [16] = "BADVERS"; ["BADVERS"] = "Bad OPT Version"; -- [16] = "BADSIG"; ["BADSIG"] = "TSIG Signature Failure"; [17] = "BADKEY"; ["BADKEY"] = "Key not recognized"; [18] = "BADTIME"; ["BADTIME"] = "Signature out of time window"; [19] = "BADMODE"; ["BADMODE"] = "Bad TKEY Mode"; [20] = "BADNAME"; ["BADNAME"] = "Duplicate key name"; [21] = "BADALG"; ["BADALG"] = "Algorithm not supported"; [22] = "BADTRUNC"; ["BADTRUNC"] = "Bad Truncation"; [23] = "BADCOOKIE"; ["BADCOOKIE"] = "Bad/missing Server Cookie"; }; };