| [8] | 1 | # ipdb/cgi-bin/IPDB.pm
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| [66] | 2 | # Contains functions for IPDB - database access, subnet mangling, block allocation, etc
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| [8] | 3 | ###
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| 4 | # SVN revision info
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| 5 | # $Date: 2005-09-21 18:09:35 +0000 (Wed, 21 Sep 2005) $
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| 6 | # SVN revision $Rev: 282 $
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| 7 | # Last update by $Author: kdeugau $
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| 8 | ###
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| [146] | 9 | # Copyright (C) 2004,2005 - Kris Deugau
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| [8] | 10 |
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| [4] | 11 | package IPDB;
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| 12 |
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| 13 | use strict;
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| 14 | use warnings;
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| 15 | use Exporter;
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| [77] | 16 | use DBI;
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| [66] | 17 | use Net::SMTP;
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| [68] | 18 | use POSIX;
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| [4] | 19 | use vars qw($VERSION @ISA @EXPORT @EXPORT_OK %EXPORT_TAGS);
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| 20 |
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| [77] | 21 | $VERSION = 2.0;
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| [4] | 22 | @ISA = qw(Exporter);
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| [106] | 23 | @EXPORT_OK = qw(
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| [167] | 24 | %disp_alloctypes %list_alloctypes %def_custids @citylist @poplist @masterblocks
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| [233] | 25 | %allocated %free %routed %bigfree %IPDBacl
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| [106] | 26 | &initIPDBGlobals &connectDB &finish &checkDBSanity &allocateBlock &deleteBlock
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| 27 | &mailNotify
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| 28 | );
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| [4] | 29 |
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| 30 | @EXPORT = (); # Export nothing by default.
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| [106] | 31 | %EXPORT_TAGS = ( ALL => [qw(
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| [167] | 32 | %disp_alloctypes %list_alloctypes %def_custids @citylist @poplist
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| [233] | 33 | @masterblocks %allocated %free %routed %bigfree %IPDBacl
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| [106] | 34 | &initIPDBGlobals &connectDB &finish &checkDBSanity &allocateBlock
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| 35 | &deleteBlock &mailNotify
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| 36 | )]
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| 37 | );
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| [4] | 38 |
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| [77] | 39 | ##
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| 40 | ## Global variables
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| 41 | ##
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| 42 | our %disp_alloctypes;
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| 43 | our %list_alloctypes;
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| [167] | 44 | our %def_custids;
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| [96] | 45 | our @citylist;
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| 46 | our @poplist;
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| [106] | 47 | our @masterblocks;
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| [118] | 48 | our %allocated;
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| 49 | our %free;
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| 50 | our %routed;
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| 51 | our %bigfree;
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| [233] | 52 | our %IPDBacl;
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| [66] | 53 |
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| [77] | 54 | # Let's initialize the globals.
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| 55 | ## IPDB::initIPDBGlobals()
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| 56 | # Initialize all globals. Takes a database handle, returns a success or error code
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| 57 | sub initIPDBGlobals {
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| 58 | my $dbh = $_[0];
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| 59 | my $sth;
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| 60 |
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| [106] | 61 | # Initialize alloctypes hashes
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| [167] | 62 | $sth = $dbh->prepare("select type,listname,dispname,listorder,def_custid from alloctypes order by listorder");
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| [77] | 63 | $sth->execute;
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| 64 | while (my @data = $sth->fetchrow_array) {
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| [106] | 65 | $disp_alloctypes{$data[0]} = $data[2];
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| [167] | 66 | $def_custids{$data[0]} = $data[4];
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| [106] | 67 | if ($data[3] < 900) {
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| 68 | $list_alloctypes{$data[0]} = $data[1];
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| 69 | }
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| [77] | 70 | }
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| [96] | 71 |
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| 72 | # City and POP listings
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| [157] | 73 | $sth = $dbh->prepare("select city,routing from cities order by city");
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| [96] | 74 | $sth->execute;
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| 75 | return (undef,$sth->errstr) if $sth->err;
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| 76 | while (my @data = $sth->fetchrow_array) {
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| [106] | 77 | push @citylist, $data[0];
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| [96] | 78 | if ($data[1] eq 'y') {
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| [106] | 79 | push @poplist, $data[0];
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| [96] | 80 | }
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| 81 | }
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| 82 |
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| [106] | 83 | # Master block list
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| [157] | 84 | $sth = $dbh->prepare("select cidr from masterblocks order by cidr");
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| [106] | 85 | $sth->execute;
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| [233] | 86 | return (undef,$sth->errstr) if $sth->err;
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| [106] | 87 | for (my $i=0; my @data = $sth->fetchrow_array(); $i++) {
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| 88 | $masterblocks[$i] = new NetAddr::IP $data[0];
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| [118] | 89 | $allocated{"$masterblocks[$i]"} = 0;
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| 90 | $free{"$masterblocks[$i]"} = 0;
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| 91 | $bigfree{"$masterblocks[$i]"} = 128; # Larger number means smaller block.
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| 92 | # Set to 128 to prepare for IPv6
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| 93 | $routed{"$masterblocks[$i]"} = 0;
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| [106] | 94 | }
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| [233] | 95 |
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| 96 | # Load ACL data. Specific username checks are done at a different level.
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| 97 | $sth = $dbh->prepare("select username,acl from users");
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| 98 | $sth->execute;
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| [106] | 99 | return (undef,$sth->errstr) if $sth->err;
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| [233] | 100 | while (my @data = $sth->fetchrow_array) {
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| 101 | $IPDBacl{$data[0]} = $data[1];
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| 102 | }
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| [106] | 103 |
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| [77] | 104 | return (1,"OK");
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| 105 | } # end initIPDBGlobals
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| 106 |
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| 107 |
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| 108 | ## IPDB::connectDB()
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| [4] | 109 | # Creates connection to IPDB.
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| [77] | 110 | # Requires the database name, username, and password.
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| [4] | 111 | # Returns a handle to the db.
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| [77] | 112 | # Set up for a PostgreSQL db; could be any transactional DBMS with the
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| 113 | # right changes.
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| 114 | # This definition should be sub connectDB($$$) to be technically correct,
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| 115 | # but this breaks. GRR.
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| [4] | 116 | sub connectDB {
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| [77] | 117 | my ($dbname,$user,$pass) = @_;
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| [4] | 118 | my $dbh;
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| [77] | 119 | my $DSN = "DBI:Pg:dbname=$dbname";
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| 120 | # my $user = 'ipdb';
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| 121 | # my $pw = 'ipdbpwd';
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| [4] | 122 |
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| 123 | # Note that we want to autocommit by default, and we will turn it off locally as necessary.
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| [77] | 124 | # We may not want to print gobbledygook errors; YMMV. Have to ponder that further.
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| 125 | $dbh = DBI->connect($DSN, $user, $pass, {
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| 126 | AutoCommit => 1,
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| 127 | PrintError => 0
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| 128 | })
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| 129 | or return (undef, $DBI::errstr) if(!$dbh);
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| [4] | 130 |
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| [77] | 131 | # Return here if we can't select. Note that this indicates a
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| 132 | # problem executing the select.
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| [183] | 133 | my $sth = $dbh->prepare("select type from alloctypes");
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| [77] | 134 | $sth->execute();
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| 135 | return (undef,$DBI::errstr) if ($sth->err);
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| 136 |
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| 137 | # See if the select returned anything (or null data). This should
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| 138 | # succeed if the select executed, but...
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| 139 | $sth->fetchrow();
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| 140 | return (undef,$DBI::errstr) if ($sth->err);
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| 141 |
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| 142 | # If we get here, we should be OK.
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| 143 | return ($dbh,"DB connection OK");
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| [4] | 144 | } # end connectDB
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| 145 |
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| [77] | 146 |
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| 147 | ## IPDB::finish()
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| 148 | # Cleans up after database handles and so on.
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| 149 | # Requires a database handle
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| 150 | sub finish {
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| 151 | my $dbh = $_[0];
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| 152 | $dbh->disconnect;
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| 153 | } # end finish
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| 154 |
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| 155 |
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| [106] | 156 | ## IPDB::checkDBSanity()
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| [4] | 157 | # Quick check to see if the db is responding. A full integrity
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| 158 | # check will have to be a separate tool to walk the IP allocation trees.
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| 159 | sub checkDBSanity {
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| [106] | 160 | my ($dbh) = $_[0];
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| [4] | 161 |
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| 162 | if (!$dbh) {
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| [106] | 163 | print "No database handle, or connection has been closed.";
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| 164 | return -1;
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| [4] | 165 | } else {
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| 166 | # it connects, try a stmt.
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| [184] | 167 | my $sth = $dbh->prepare("select type from alloctypes");
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| [4] | 168 | my $err = $sth->execute();
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| 169 |
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| 170 | if ($sth->fetchrow()) {
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| 171 | # all is well.
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| 172 | return 1;
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| 173 | } else {
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| [16] | 174 | print "Connected to the database, but could not execute test statement. ".$sth->errstr();
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| [106] | 175 | return -1;
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| [4] | 176 | }
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| 177 | }
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| 178 | # Clean up after ourselves.
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| [106] | 179 | # $dbh->disconnect;
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| [4] | 180 | } # end checkDBSanity
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| 181 |
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| [66] | 182 |
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| [77] | 183 | ## IPDB::allocateBlock()
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| [66] | 184 | # Does all of the magic of actually allocating a netblock
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| [77] | 185 | # Requires database handle, block to allocate, custid, type, city,
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| [282] | 186 | # description, notes, circuit ID, block to allocate from, private data
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| [77] | 187 | # Returns a success code and optional error message.
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| 188 | sub allocateBlock {
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| [282] | 189 | my ($dbh,undef,undef,$custid,$type,$city,$desc,$notes,$circid,$privdata) = @_;
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| 190 |
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| [77] | 191 | my $cidr = new NetAddr::IP $_[1];
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| 192 | my $alloc_from = new NetAddr::IP $_[2];
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| 193 | my $sth;
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| [66] | 194 |
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| [79] | 195 | # To contain the error message, if any.
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| 196 | my $msg = "Unknown error allocating $cidr as '$type'";
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| 197 |
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| [77] | 198 | # Enable transactions and error handling
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| 199 | local $dbh->{AutoCommit} = 0; # These need to be local so we don't
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| 200 | local $dbh->{RaiseError} = 1; # step on our toes by accident.
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| [66] | 201 |
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| [157] | 202 | if ($type =~ /^.i$/) {
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| [79] | 203 | $msg = "Unable to assign static IP $cidr to $custid";
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| [77] | 204 | eval {
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| [157] | 205 | # We have to do this in two parts because otherwise we lose
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| 206 | # the ability to return the IP assigned. Should that change,
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| 207 | # the commented SQL statement below may become usable.
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| [77] | 208 | # update poolips set custid='$custid',city='$city',available='n',
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| 209 | # description='$desc',notes='$notes',circuitid='$circid'
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| 210 | # where ip=(select ip from poolips where pool='$alloc_from'
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| 211 | # and available='y' order by ip limit 1);
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| [157] | 212 |
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| 213 | $sth = $dbh->prepare("select ip from poolips where pool='$alloc_from'".
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| 214 | " and available='y' order by ip");
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| 215 | $sth->execute;
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| 216 |
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| [77] | 217 | my @data = $sth->fetchrow_array;
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| [157] | 218 | $cidr = $data[0]; # $cidr is already declared when we get here!
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| [77] | 219 |
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| 220 | $sth = $dbh->prepare("update poolips set custid='$custid',".
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| [108] | 221 | "city='$city',available='n',description='$desc',notes='$notes',".
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| [282] | 222 | "circuitid='$circid',privdata='$privdata'".
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| [77] | 223 | " where ip='$cidr'");
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| 224 | $sth->execute;
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| [79] | 225 | $dbh->commit;
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| [77] | 226 | };
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| 227 | if ($@) {
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| [107] | 228 | $msg .= ": '".$sth->errstr."'";
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| [78] | 229 | eval { $dbh->rollback; };
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| 230 | return ('FAIL',$msg);
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| [77] | 231 | } else {
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| [106] | 232 | return ('OK',"$cidr");
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| [77] | 233 | }
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| 234 |
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| 235 | } else { # end IP-from-pool allocation
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| 236 |
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| 237 | if ($cidr == $alloc_from) {
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| 238 | # Easiest case- insert in one table, delete in the other, and go home. More or less.
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| 239 | # insert into allocations values (cidr,custid,type,city,desc) and
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| 240 | # delete from freeblocks where cidr='cidr'
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| 241 | # For data safety on non-transaction DBs, we delete first.
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| 242 |
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| 243 | eval {
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| [79] | 244 | $msg = "Unable to allocate $cidr as '$disp_alloctypes{$type}'";
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| [187] | 245 | if ($type eq 'rm') {
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| [77] | 246 | $sth = $dbh->prepare("update freeblocks set routed='y',city='$city'".
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| 247 | " where cidr='$cidr'");
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| 248 | $sth->execute;
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| [157] | 249 | $sth = $dbh->prepare("insert into routed (cidr,maskbits,city)".
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| 250 | " values ('$cidr',".$cidr->masklen.",'$city')");
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| [77] | 251 | $sth->execute;
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| 252 | } else {
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| 253 | # common stuff for end-use, dialup, dynDSL, pools, etc, etc.
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| 254 |
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| [187] | 255 | # special case - block is a container/"reserve" block
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| 256 | if ($type =~ /^(.)c$/) {
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| 257 | $sth = $dbh->prepare("update freeblocks set routed='$1' where cidr='$cidr'");
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| [186] | 258 | $sth->execute;
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| 259 | } else {
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| 260 | # "normal" case
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| 261 | $sth = $dbh->prepare("delete from freeblocks where cidr='$cidr'");
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| 262 | $sth->execute;
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| 263 | }
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| [157] | 264 | $sth = $dbh->prepare("insert into allocations".
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| [282] | 265 | " (cidr,custid,type,city,description,notes,maskbits,circuitid,privdata)".
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| [157] | 266 | " values ('$cidr','$custid','$type','$city','$desc','$notes',".
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| [282] | 267 | $cidr->masklen.",'$circid','$privdata')");
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| [77] | 268 | $sth->execute;
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| [78] | 269 |
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| 270 | # And initialize the pool, if necessary
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| [157] | 271 | # PPPoE pools (currently dialup, DSL, and WiFi) get all IPs made available
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| 272 | # "DHCP" or "real-subnet" pools have the net, gw, and bcast IPs removed.
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| [78] | 273 | if ($type =~ /^.p$/) {
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| [157] | 274 | $msg = "Could not initialize IPs in new $disp_alloctypes{$type} $cidr";
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| 275 | my ($code,$rmsg) = initPool($dbh,$cidr,$type,$city,"all");
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| 276 | die $rmsg if $code eq 'FAIL';
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| 277 | } elsif ($type =~ /^.d$/) {
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| 278 | $msg = "Could not initialize IPs in new $disp_alloctypes{$type} $cidr";
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| 279 | my ($code,$rmsg) = initPool($dbh,$cidr,$type,$city,"normal");
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| 280 | die $rmsg if $code eq 'FAIL';
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| [79] | 281 | }
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| 282 |
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| [77] | 283 | } # routing vs non-routing netblock
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| [79] | 284 |
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| [77] | 285 | $dbh->commit;
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| [78] | 286 | }; # end of eval
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| [77] | 287 | if ($@) {
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| [157] | 288 | $msg .= ": ".$@;
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| [77] | 289 | eval { $dbh->rollback; };
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| [157] | 290 | return ('FAIL',$msg);
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| [77] | 291 | } else {
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| [78] | 292 | return ('OK',"OK");
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| 293 | }
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| [77] | 294 |
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| 295 | } else { # cidr != alloc_from
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| 296 |
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| 297 | # Hard case. Allocation is smaller than free block.
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| 298 | my $wantmaskbits = $cidr->masklen;
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| 299 | my $maskbits = $alloc_from->masklen;
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| 300 |
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| 301 | my @newfreeblocks; # Holds free blocks generated from splitting the source freeblock.
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| 302 |
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| 303 | # This determines which blocks will be left "free" after allocation. We take the
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| 304 | # block we're allocating from, and split it in half. We see which half the wanted
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| 305 | # block is in, and repeat until the wanted block is equal to one of the halves.
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| 306 | my $i=0;
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| 307 | my $tmp_from = $alloc_from; # So we don't munge $alloc_from
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| 308 | while ($maskbits++ < $wantmaskbits) {
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| 309 | my @subblocks = $tmp_from->split($maskbits);
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| 310 | $newfreeblocks[$i++] = (($cidr->within($subblocks[0])) ? $subblocks[1] : $subblocks[0]);
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| 311 | $tmp_from = ( ($cidr->within($subblocks[0])) ? $subblocks[0] : $subblocks[1] );
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| 312 | } # while
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| 313 |
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| 314 | # Begin SQL transaction block
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| 315 | eval {
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| [79] | 316 | $msg = "Unable to allocate $cidr as '$disp_alloctypes{$type}'";
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| 317 |
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| [77] | 318 | # Delete old freeblocks entry
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| 319 | $sth = $dbh->prepare("delete from freeblocks where cidr='$alloc_from'");
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| 320 | $sth->execute();
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| 321 |
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| 322 | # now we have to do some magic for routing blocks
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| [187] | 323 | if ($type eq 'rm') {
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| [79] | 324 |
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| [77] | 325 | # Insert the new freeblocks entries
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| 326 | # Note that non-routed blocks are assigned to <NULL>
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| [157] | 327 | # and use the default value for the routed column ('n')
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| 328 | $sth = $dbh->prepare("insert into freeblocks (cidr,maskbits,city)".
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| 329 | " values (?, ?, '<NULL>')");
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| [77] | 330 | foreach my $block (@newfreeblocks) {
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| 331 | $sth->execute("$block", $block->masklen);
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| 332 | }
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| [79] | 333 |
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| [77] | 334 | # Insert the entry in the routed table
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| [157] | 335 | $sth = $dbh->prepare("insert into routed (cidr,maskbits,city)".
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| 336 | " values ('$cidr',".$cidr->masklen.",'$city')");
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| [77] | 337 | $sth->execute;
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| 338 | # Insert the (almost) same entry in the freeblocks table
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| [157] | 339 | $sth = $dbh->prepare("insert into freeblocks (cidr,maskbits,city,routed)".
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| 340 | " values ('$cidr',".$cidr->masklen.",'$city','y')");
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| [77] | 341 | $sth->execute;
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| 342 |
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| [189] | 343 | } else { # done with alloctype == rm
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| [77] | 344 |
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| 345 | # Insert the new freeblocks entries
|
|---|
| [186] | 346 | # Along with some more HairyPerl(TM) in case we're inserting a
|
|---|
| [187] | 347 | # subblock (.r) allocation
|
|---|
| [157] | 348 | $sth = $dbh->prepare("insert into freeblocks (cidr,maskbits,city,routed)".
|
|---|
| [186] | 349 | " values (?, ?, (select city from routed where cidr >>= '$cidr'),'".
|
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| [189] | 350 | (($type =~ /^(.)r$/) ? "$1" : 'y')."')");
|
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| [77] | 351 | foreach my $block (@newfreeblocks) {
|
|---|
| 352 | $sth->execute("$block", $block->masklen);
|
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| 353 | }
|
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| [187] | 354 | # Special-case for reserve/"container" blocks - generate
|
|---|
| 355 | # the "extra" freeblocks entry for the container
|
|---|
| 356 | if ($type =~ /^(.)c$/) {
|
|---|
| [186] | 357 | $sth = $dbh->prepare("insert into freeblocks (cidr,maskbits,city,routed)".
|
|---|
| [187] | 358 | " values ('$cidr',".$cidr->masklen.",'$city','$1')");
|
|---|
| [186] | 359 | $sth->execute;
|
|---|
| 360 | }
|
|---|
| [77] | 361 | # Insert the allocations entry
|
|---|
| [157] | 362 | $sth = $dbh->prepare("insert into allocations (cidr,custid,type,city,".
|
|---|
| [282] | 363 | "description,notes,maskbits,circuitid,privdata)".
|
|---|
| [157] | 364 | " values ('$cidr','$custid','$type','$city','$desc','$notes',".
|
|---|
| [282] | 365 | $cidr->masklen.",'$circid','$privdata')");
|
|---|
| [77] | 366 | $sth->execute;
|
|---|
| [78] | 367 |
|
|---|
| 368 | # And initialize the pool, if necessary
|
|---|
| [157] | 369 | # PPPoE pools (currently dialup, DSL, and WiFi) get all IPs made available
|
|---|
| 370 | # "DHCP" or "real-subnet" pools have the net, gw, and bcast IPs removed.
|
|---|
| [78] | 371 | if ($type =~ /^.p$/) {
|
|---|
| [79] | 372 | $msg = "Could not initialize IPs in new $disp_alloctypes{$type} $cidr";
|
|---|
| [157] | 373 | my ($code,$rmsg) = initPool($dbh,$cidr,$type,$city,"all");
|
|---|
| 374 | die $rmsg if $code eq 'FAIL';
|
|---|
| 375 | } elsif ($type =~ /^.d$/) {
|
|---|
| 376 | $msg = "Could not initialize IPs in new $disp_alloctypes{$type} $cidr";
|
|---|
| 377 | my ($code,$rmsg) = initPool($dbh,$cidr,$type,$city,"normal");
|
|---|
| 378 | die $rmsg if $code eq 'FAIL';
|
|---|
| [79] | 379 | }
|
|---|
| 380 |
|
|---|
| [189] | 381 | } # done with netblock alloctype != rm
|
|---|
| [79] | 382 |
|
|---|
| [77] | 383 | $dbh->commit;
|
|---|
| 384 | }; # end eval
|
|---|
| 385 | if ($@) {
|
|---|
| [256] | 386 | $msg .= ": ".$@;
|
|---|
| [77] | 387 | eval { $dbh->rollback; };
|
|---|
| [78] | 388 | return ('FAIL',$msg);
|
|---|
| [77] | 389 | } else {
|
|---|
| [78] | 390 | return ('OK',"OK");
|
|---|
| [77] | 391 | }
|
|---|
| 392 |
|
|---|
| 393 | } # end fullcidr != alloc_from
|
|---|
| 394 |
|
|---|
| 395 | } # end static-IP vs netblock allocation
|
|---|
| 396 |
|
|---|
| 397 | } # end allocateBlock()
|
|---|
| 398 |
|
|---|
| 399 |
|
|---|
| 400 | ## IPDB::initPool()
|
|---|
| 401 | # Initializes a pool
|
|---|
| 402 | # Requires a database handle, the pool CIDR, type, city, and a parameter
|
|---|
| 403 | # indicating whether the pool should allow allocation of literally every
|
|---|
| 404 | # IP, or if it should reserve network/gateway/broadcast IPs
|
|---|
| [78] | 405 | # Note that this is NOT done in a transaction, that's why it's a private
|
|---|
| 406 | # function and should ONLY EVER get called from allocateBlock()
|
|---|
| [77] | 407 | sub initPool {
|
|---|
| 408 | my ($dbh,undef,$type,$city,$class) = @_;
|
|---|
| 409 | my $pool = new NetAddr::IP $_[1];
|
|---|
| 410 |
|
|---|
| [157] | 411 | ##fixme Need to just replace 2nd char of type with i rather than capturing 1st char of type
|
|---|
| 412 | $type =~ s/[pd]$/i/;
|
|---|
| [77] | 413 | my $sth;
|
|---|
| [157] | 414 | my $msg;
|
|---|
| [77] | 415 |
|
|---|
| [157] | 416 | # Trap errors so we can pass them back to the caller. Even if the
|
|---|
| 417 | # caller is only ever supposed to be local, and therefore already
|
|---|
| 418 | # trapping errors. >:(
|
|---|
| 419 | local $dbh->{AutoCommit} = 0; # These need to be local so we don't
|
|---|
| 420 | local $dbh->{RaiseError} = 1; # step on our toes by accident.
|
|---|
| 421 |
|
|---|
| 422 | eval {
|
|---|
| 423 | # have to insert all pool IPs into poolips table as "unallocated".
|
|---|
| 424 | $sth = $dbh->prepare("insert into poolips (pool,ip,custid,city,type)".
|
|---|
| 425 | " values ('$pool', ?, '6750400', '$city', '$type')");
|
|---|
| 426 | my @poolip_list = $pool->hostenum;
|
|---|
| 427 | if ($class eq 'all') { # (DSL-ish block - *all* IPs available
|
|---|
| [246] | 428 | if ($pool->addr !~ /\.0$/) { # .0 causes weirdness.
|
|---|
| 429 | $sth->execute($pool->addr);
|
|---|
| 430 | }
|
|---|
| [157] | 431 | for (my $i=0; $i<=$#poolip_list; $i++) {
|
|---|
| 432 | $sth->execute($poolip_list[$i]->addr);
|
|---|
| 433 | }
|
|---|
| 434 | $pool--;
|
|---|
| [246] | 435 | if ($pool->addr !~ /\.255$/) { # .255 can cause weirdness.
|
|---|
| 436 | $sth->execute($pool->addr);
|
|---|
| 437 | }
|
|---|
| [157] | 438 | } else { # (real netblock)
|
|---|
| 439 | for (my $i=1; $i<=$#poolip_list; $i++) {
|
|---|
| 440 | $sth->execute($poolip_list[$i]->addr);
|
|---|
| 441 | }
|
|---|
| [77] | 442 | }
|
|---|
| [157] | 443 | };
|
|---|
| 444 | if ($@) {
|
|---|
| 445 | $msg = "'".$sth->errstr."'";
|
|---|
| 446 | eval { $dbh->rollback; };
|
|---|
| 447 | return ('FAIL',$msg);
|
|---|
| 448 | } else {
|
|---|
| 449 | return ('OK',"OK");
|
|---|
| [77] | 450 | }
|
|---|
| 451 | } # end initPool()
|
|---|
| 452 |
|
|---|
| 453 |
|
|---|
| [93] | 454 | ## IPDB::deleteBlock()
|
|---|
| 455 | # Removes an allocation from the database, including deleting IPs
|
|---|
| 456 | # from poolips and recombining entries in freeblocks if possible
|
|---|
| 457 | # Also handles "deleting" a static IP allocation, and removal of a master
|
|---|
| 458 | # Requires a database handle, the block to delete, and the type of block
|
|---|
| 459 | sub deleteBlock {
|
|---|
| 460 | my ($dbh,undef,$type) = @_;
|
|---|
| 461 | my $cidr = new NetAddr::IP $_[1];
|
|---|
| 462 |
|
|---|
| 463 | my $sth;
|
|---|
| 464 |
|
|---|
| 465 | # To contain the error message, if any.
|
|---|
| 466 | my $msg = "Unknown error deallocating $type $cidr";
|
|---|
| 467 | # Enable transactions and exception-on-errors... but only for this sub
|
|---|
| 468 | local $dbh->{AutoCommit} = 0;
|
|---|
| 469 | local $dbh->{RaiseError} = 1;
|
|---|
| 470 |
|
|---|
| 471 | # First case. The "block" is a static IP
|
|---|
| 472 | # Note that we still need some additional code in the odd case
|
|---|
| 473 | # of a netblock-aligned contiguous group of static IPs
|
|---|
| 474 | if ($type =~ /^.i$/) {
|
|---|
| 475 |
|
|---|
| 476 | eval {
|
|---|
| [157] | 477 | $msg = "Unable to deallocate $disp_alloctypes{$type} $cidr";
|
|---|
| [93] | 478 | $sth = $dbh->prepare("update poolips set custid='6750400',available='y',".
|
|---|
| [120] | 479 | "city=(select city from allocations where cidr >>= '$cidr'),".
|
|---|
| [93] | 480 | "description='',notes='',circuitid='' where ip='$cidr'");
|
|---|
| 481 | $sth->execute;
|
|---|
| 482 | $dbh->commit;
|
|---|
| 483 | };
|
|---|
| 484 | if ($@) {
|
|---|
| 485 | eval { $dbh->rollback; };
|
|---|
| 486 | return ('FAIL',$msg);
|
|---|
| 487 | } else {
|
|---|
| 488 | return ('OK',"OK");
|
|---|
| 489 | }
|
|---|
| 490 |
|
|---|
| 491 | } elsif ($type eq 'mm') { # end alloctype =~ /.i/
|
|---|
| 492 |
|
|---|
| 493 | $msg = "Unable to delete master block $cidr";
|
|---|
| 494 | eval {
|
|---|
| 495 | $sth = $dbh->prepare("delete from masterblocks where cidr='$cidr'");
|
|---|
| 496 | $sth->execute;
|
|---|
| 497 | $sth = $dbh->prepare("delete from freeblocks where cidr='$cidr'");
|
|---|
| 498 | $sth->execute;
|
|---|
| 499 | $dbh->commit;
|
|---|
| 500 | };
|
|---|
| 501 | if ($@) {
|
|---|
| 502 | eval { $dbh->rollback; };
|
|---|
| 503 | return ('FAIL', $msg);
|
|---|
| 504 | } else {
|
|---|
| 505 | return ('OK',"OK");
|
|---|
| 506 | }
|
|---|
| 507 |
|
|---|
| 508 | } else { # end alloctype master block case
|
|---|
| 509 |
|
|---|
| 510 | ## This is a big block; but it HAS to be done in a chunk. Any removal
|
|---|
| 511 | ## of a netblock allocation may result in a larger chunk of free
|
|---|
| 512 | ## contiguous IP space - which may in turn be combined into a single
|
|---|
| 513 | ## netblock rather than a number of smaller netblocks.
|
|---|
| 514 |
|
|---|
| 515 | eval {
|
|---|
| 516 |
|
|---|
| [187] | 517 | if ($type eq 'rm') {
|
|---|
| [93] | 518 | $msg = "Unable to remove routing allocation $cidr";
|
|---|
| 519 | $sth = $dbh->prepare("delete from routed where cidr='$cidr'");
|
|---|
| 520 | $sth->execute;
|
|---|
| 521 | # Make sure block getting deleted is properly accounted for.
|
|---|
| 522 | $sth = $dbh->prepare("update freeblocks set routed='n',city='<NULL>'".
|
|---|
| 523 | " where cidr='$cidr'");
|
|---|
| 524 | $sth->execute;
|
|---|
| 525 | # Set up query to start compacting free blocks.
|
|---|
| [157] | 526 | $sth = $dbh->prepare("select cidr from freeblocks where ".
|
|---|
| [93] | 527 | "maskbits<=".$cidr->masklen." and routed='n' order by maskbits desc");
|
|---|
| 528 |
|
|---|
| 529 | } else { # end alloctype routing case
|
|---|
| 530 |
|
|---|
| [186] | 531 | # Delete all allocations within the block being deleted. This is
|
|---|
| 532 | # deliberate and correct, and removes the need to special-case
|
|---|
| 533 | # removal of "container" blocks.
|
|---|
| 534 | $sth = $dbh->prepare("delete from allocations where cidr <<='$cidr'");
|
|---|
| [93] | 535 | $sth->execute;
|
|---|
| [186] | 536 |
|
|---|
| [93] | 537 | # Special case - delete pool IPs
|
|---|
| [157] | 538 | if ($type =~ /^.[pd]$/) {
|
|---|
| [93] | 539 | # We have to delete the IPs from the pool listing.
|
|---|
| 540 | $sth = $dbh->prepare("delete from poolips where pool='$cidr'");
|
|---|
| 541 | $sth->execute;
|
|---|
| 542 | }
|
|---|
| 543 |
|
|---|
| 544 | # Set up query for compacting free blocks.
|
|---|
| [157] | 545 | $sth = $dbh->prepare("select cidr from freeblocks where cidr <<= ".
|
|---|
| [120] | 546 | "(select cidr from routed where cidr >>= '$cidr') ".
|
|---|
| [186] | 547 | " and maskbits<=".$cidr->masklen.
|
|---|
| [187] | 548 | " and routed='".(($type =~ /^(.)r$/) ? '$1' : 'y').
|
|---|
| [186] | 549 | "' order by maskbits desc");
|
|---|
| [93] | 550 |
|
|---|
| 551 | } # end alloctype general case
|
|---|
| 552 |
|
|---|
| 553 | # Now we look for larger-or-equal-sized free blocks in the same master (routed)
|
|---|
| 554 | # (super)block. If there aren't any, we can't combine blocks anyway. If there
|
|---|
| 555 | # are, we check to see if we can combine blocks.
|
|---|
| 556 | # Execute the statement prepared in the if-else above.
|
|---|
| 557 |
|
|---|
| 558 | $sth->execute;
|
|---|
| 559 |
|
|---|
| 560 | # NetAddr::IP->compact() attempts to produce the smallest inclusive block
|
|---|
| 561 | # from the caller and the passed terms.
|
|---|
| 562 | # EG: if you call $cidr->compact($ip1,$ip2,$ip3) when $cidr, $ip1, $ip2,
|
|---|
| 563 | # and $ip3 are consecutive /27's starting on .0 (.0-.31, .32-.63,
|
|---|
| 564 | # .64-.95, and .96-.128), you will get an array containing a single
|
|---|
| 565 | # /25 as element 0 (.0-.127). Order is not important; you could have
|
|---|
| 566 | # $cidr=.32/27, $ip1=.96/27, $ip2=.0/27, and $ip3=.64/27.
|
|---|
| 567 |
|
|---|
| 568 | my (@together, @combinelist);
|
|---|
| 569 | my $i=0;
|
|---|
| 570 | while (my @data = $sth->fetchrow_array) {
|
|---|
| 571 | my $testIP = new NetAddr::IP $data[0];
|
|---|
| 572 | @together = $testIP->compact($cidr);
|
|---|
| 573 | my $num = @together;
|
|---|
| 574 | if ($num == 1) {
|
|---|
| 575 | $cidr = $together[0];
|
|---|
| 576 | $combinelist[$i++] = $testIP;
|
|---|
| 577 | }
|
|---|
| 578 | }
|
|---|
| 579 |
|
|---|
| [186] | 580 | # Clear old freeblocks entries - if any. They should all be within
|
|---|
| 581 | # the $cidr determined above.
|
|---|
| 582 | $sth = $dbh->prepare("delete from freeblocks where cidr <<='$cidr'");
|
|---|
| 583 | $sth->execute;
|
|---|
| [93] | 584 |
|
|---|
| 585 | # insert "new" freeblocks entry
|
|---|
| [187] | 586 | if ($type eq 'rm') {
|
|---|
| [157] | 587 | $sth = $dbh->prepare("insert into freeblocks (cidr,maskbits,city)".
|
|---|
| 588 | " values ('$cidr',".$cidr->masklen.",'<NULL>')");
|
|---|
| [93] | 589 | } else {
|
|---|
| [157] | 590 | $sth = $dbh->prepare("insert into freeblocks (cidr,maskbits,city,routed)".
|
|---|
| 591 | " values ('$cidr',".$cidr->masklen.
|
|---|
| [186] | 592 | ",(select city from routed where cidr >>= '$cidr'),'".
|
|---|
| [189] | 593 | (($type =~ /^(.)r$/) ? "$1" : 'y')."')");
|
|---|
| [93] | 594 | }
|
|---|
| 595 | $sth->execute;
|
|---|
| 596 |
|
|---|
| 597 | # If we got here, we've succeeded. Whew!
|
|---|
| 598 | $dbh->commit;
|
|---|
| 599 | }; # end eval
|
|---|
| 600 | if ($@) {
|
|---|
| 601 | eval { $dbh->rollback; };
|
|---|
| 602 | return ('FAIL', $msg);
|
|---|
| 603 | } else {
|
|---|
| 604 | return ('OK',"OK");
|
|---|
| 605 | }
|
|---|
| 606 |
|
|---|
| 607 | } # end alloctype != netblock
|
|---|
| 608 |
|
|---|
| 609 | } # end deleteBlock()
|
|---|
| 610 |
|
|---|
| 611 |
|
|---|
| [77] | 612 | ## IPDB::mailNotify()
|
|---|
| [66] | 613 | # Sends notification mail to recipients regarding an IPDB operation
|
|---|
| 614 | sub mailNotify ($$$) {
|
|---|
| 615 | my ($recip,$subj,$message) = @_;
|
|---|
| [69] | 616 | my $mailer = Net::SMTP->new("smtp.example.com", Hello => "ipdb.example.com");
|
|---|
| [66] | 617 |
|
|---|
| 618 | $mailer->mail('ipdb@example.com');
|
|---|
| 619 | $mailer->to($recip);
|
|---|
| [69] | 620 | $mailer->data("From: \"IP Database\" <ipdb\@example.com>\n",
|
|---|
| [135] | 621 | "To: $recip\n",
|
|---|
| [69] | 622 | "Date: ".strftime("%a, %d %b %Y %H:%M:%S %z",localtime)."\n",
|
|---|
| 623 | "Subject: {IPDB} $subj\n",
|
|---|
| 624 | "X-Mailer: IPDB Notify v".sprintf("%.1d",$IPDB::VERSION)."\n",
|
|---|
| 625 | "Organization: Example Corp\n",
|
|---|
| 626 | "\n$message\n");
|
|---|
| [66] | 627 | $mailer->quit;
|
|---|
| 628 | }
|
|---|
| 629 |
|
|---|
| [4] | 630 | # Indicates module loaded OK. Required by Perl.
|
|---|
| 631 | 1;
|
|---|
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