1 | # ipdb/cgi-bin/IPDB.pm
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2 | # Contains functions for IPDB - database access, subnet mangling, block allocation, etc
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3 | ###
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4 | # SVN revision info
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5 | # $Date: 2012-10-19 20:15:59 +0000 (Fri, 19 Oct 2012) $
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6 | # SVN revision $Rev: 519 $
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7 | # Last update by $Author: kdeugau $
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8 | ###
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9 | # Copyright (C) 2004-2010 - Kris Deugau
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10 |
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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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16 | use DBI;
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17 | use Net::SMTP;
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18 | use NetAddr::IP qw( Compact );
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19 | use POSIX;
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20 | use vars qw($VERSION @ISA @EXPORT @EXPORT_OK %EXPORT_TAGS);
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21 |
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22 | $VERSION = 2; ##VERSION##
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23 | @ISA = qw(Exporter);
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24 | @EXPORT_OK = qw(
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25 | %disp_alloctypes %list_alloctypes %def_custids @citylist @poplist @masterblocks
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26 | %allocated %free %routed %bigfree %IPDBacl %aclmsg
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27 | &initIPDBGlobals &connectDB &finish &checkDBSanity &allocateBlock &addMaster
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28 | &deleteBlock &getBlockData
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29 | &getNodeList
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30 | &mailNotify
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31 | );
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32 |
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33 | @EXPORT = (); # Export nothing by default.
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34 | %EXPORT_TAGS = ( ALL => [qw(
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35 | %disp_alloctypes %list_alloctypes %def_custids @citylist @poplist
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36 | @masterblocks %allocated %free %routed %bigfree %IPDBacl %aclmsg
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37 | &initIPDBGlobals &connectDB &finish &checkDBSanity &allocateBlock
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38 | &addMaster &deleteBlock &getBlockData
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39 | &getNodeList
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40 | &mailNotify
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41 | )]
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42 | );
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43 |
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44 | ##
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45 | ## Global variables
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46 | ##
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47 | our %disp_alloctypes;
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48 | our %list_alloctypes;
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49 | our %def_custids;
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50 | our @citylist;
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51 | our @poplist;
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52 | our @masterblocks;
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53 | our %allocated;
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54 | our %free;
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55 | our %routed;
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56 | our %bigfree;
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57 | our %IPDBacl;
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58 |
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59 | # mapping table for functional-area => error message
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60 | our %aclmsg = (
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61 | addmaster => 'add a master block',
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62 | addblock => 'add an allocation',
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63 | updateblock => 'update a block',
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64 | delblock => 'delete an allocation',
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65 | );
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66 |
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67 | our $org_name = 'Example Corp';
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68 | our $smtphost = 'smtp.example.com';
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69 | our $domain = 'example.com';
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70 | our $defcustid = '5554242';
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71 | # mostly for rwhois
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72 | ##fixme: leave these blank by default?
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73 | our $rwhoisDataPath = '/usr/local/rwhoisd/etc/rwhoisd'; # to match ./configure defaults from rwhoisd-1.5.9.6
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74 | our $org_street = '123 4th Street';
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75 | our $org_city = 'Anytown';
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76 | our $org_prov_state = 'ON';
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77 | our $org_pocode = 'H0H 0H0';
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78 | our $org_country = 'CA';
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79 | our $org_phone = '000-555-1234';
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80 | our $org_techhandle = 'ISP-ARIN-HANDLE';
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81 | our $org_email = 'noc@example.com';
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82 | our $hostmaster = 'dns@example.com';
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83 |
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84 | our $syslog_facility = 'local2';
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85 |
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86 | # Let's initialize the globals.
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87 | ## IPDB::initIPDBGlobals()
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88 | # Initialize all globals. Takes a database handle, returns a success or error code
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89 | sub initIPDBGlobals {
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90 | my $dbh = $_[0];
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91 | my $sth;
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92 |
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93 | # Initialize alloctypes hashes
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94 | $sth = $dbh->prepare("select type,listname,dispname,listorder,def_custid from alloctypes order by listorder");
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95 | $sth->execute;
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96 | while (my @data = $sth->fetchrow_array) {
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97 | $disp_alloctypes{$data[0]} = $data[2];
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98 | $def_custids{$data[0]} = $data[4];
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99 | if ($data[3] < 900) {
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100 | $list_alloctypes{$data[0]} = $data[1];
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101 | }
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102 | }
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103 |
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104 | # City and POP listings
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105 | $sth = $dbh->prepare("select city,routing from cities order by city");
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106 | $sth->execute;
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107 | return (undef,$sth->errstr) if $sth->err;
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108 | while (my @data = $sth->fetchrow_array) {
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109 | push @citylist, $data[0];
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110 | if ($data[1] eq 'y') {
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111 | push @poplist, $data[0];
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112 | }
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113 | }
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114 |
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115 | # Master block list
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116 | $sth = $dbh->prepare("select cidr from masterblocks order by cidr");
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117 | $sth->execute;
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118 | return (undef,$sth->errstr) if $sth->err;
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119 | for (my $i=0; my @data = $sth->fetchrow_array(); $i++) {
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120 | $masterblocks[$i] = new NetAddr::IP $data[0];
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121 | $allocated{"$masterblocks[$i]"} = 0;
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122 | $free{"$masterblocks[$i]"} = 0;
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123 | $bigfree{"$masterblocks[$i]"} = 128; # Larger number means smaller block.
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124 | # Set to 128 to prepare for IPv6
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125 | $routed{"$masterblocks[$i]"} = 0;
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126 | }
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127 |
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128 | # Load ACL data. Specific username checks are done at a different level.
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129 | $sth = $dbh->prepare("select username,acl from users");
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130 | $sth->execute;
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131 | return (undef,$sth->errstr) if $sth->err;
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132 | while (my @data = $sth->fetchrow_array) {
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133 | $IPDBacl{$data[0]} = $data[1];
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134 | }
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135 |
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136 | ##fixme: initialize HTML::Template env var for template path
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137 | # something like $self->path().'/templates' ?
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138 | # $ENV{HTML_TEMPLATE_ROOT} = 'foo/bar';
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139 |
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140 | return (1,"OK");
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141 | } # end initIPDBGlobals
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142 |
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143 |
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144 | ## IPDB::connectDB()
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145 | # Creates connection to IPDB.
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146 | # Requires the database name, username, and password.
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147 | # Returns a handle to the db.
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148 | # Set up for a PostgreSQL db; could be any transactional DBMS with the
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149 | # right changes.
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150 | sub connectDB {
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151 | my $dbname = shift;
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152 | my $user = shift;
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153 | my $pass = shift;
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154 | my $dbhost = shift;
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155 |
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156 | my $dbh;
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157 | my $DSN = "DBI:Pg:".($dbhost ? "host=$dbhost;" : '')."dbname=$dbname";
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158 |
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159 | # Note that we want to autocommit by default, and we will turn it off locally as necessary.
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160 | # We may not want to print gobbledygook errors; YMMV. Have to ponder that further.
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161 | $dbh = DBI->connect($DSN, $user, $pass, {
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162 | AutoCommit => 1,
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163 | PrintError => 0
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164 | })
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165 | or return (undef, $DBI::errstr) if(!$dbh);
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166 |
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167 | # Return here if we can't select. Note that this indicates a
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168 | # problem executing the select.
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169 | my $sth = $dbh->prepare("select type from alloctypes");
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170 | $sth->execute();
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171 | return (undef,$DBI::errstr) if ($sth->err);
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172 |
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173 | # See if the select returned anything (or null data). This should
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174 | # succeed if the select executed, but...
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175 | $sth->fetchrow();
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176 | return (undef,$DBI::errstr) if ($sth->err);
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177 |
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178 | # If we get here, we should be OK.
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179 | return ($dbh,"DB connection OK");
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180 | } # end connectDB
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181 |
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182 |
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183 | ## IPDB::finish()
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184 | # Cleans up after database handles and so on.
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185 | # Requires a database handle
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186 | sub finish {
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187 | my $dbh = $_[0];
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188 | $dbh->disconnect if $dbh;
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189 | } # end finish
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190 |
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191 |
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192 | ## IPDB::checkDBSanity()
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193 | # Quick check to see if the db is responding. A full integrity
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194 | # check will have to be a separate tool to walk the IP allocation trees.
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195 | sub checkDBSanity {
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196 | my ($dbh) = $_[0];
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197 |
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198 | if (!$dbh) {
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199 | print "No database handle, or connection has been closed.";
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200 | return -1;
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201 | } else {
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202 | # it connects, try a stmt.
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203 | my $sth = $dbh->prepare("select type from alloctypes");
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204 | my $err = $sth->execute();
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205 |
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206 | if ($sth->fetchrow()) {
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207 | # all is well.
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208 | return 1;
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209 | } else {
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210 | print "Connected to the database, but could not execute test statement. ".$sth->errstr();
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211 | return -1;
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212 | }
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213 | }
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214 | # Clean up after ourselves.
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215 | # $dbh->disconnect;
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216 | } # end checkDBSanity
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217 |
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218 |
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219 | ## IPDB::addMaster()
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220 | # Does all the magic necessary to sucessfully add a master block
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221 | # Requires database handle, block to add
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222 | # Returns failure code and error message or success code and "message"
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223 | sub addMaster {
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224 | my $dbh = shift;
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225 | my $cidr = new NetAddr::IP shift;
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226 |
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227 | # Allow transactions, and raise an exception on errors so we can catch it later.
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228 | # Use local to make sure these get "reset" properly on exiting this block
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229 | local $dbh->{AutoCommit} = 0;
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230 | local $dbh->{RaiseError} = 1;
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231 |
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232 | # Wrap all the SQL in a transaction
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233 | eval {
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234 | my ($mexist) = $dbh->selectrow_array("SELECT cidr FROM masterblocks WHERE cidr <<= ?", undef, ($cidr) );
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235 |
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236 | if (!$mexist) {
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237 | # First case - master is brand-spanking-new.
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238 | ##fixme: rwhois should be globally-flagable somewhere, much like a number of other things
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239 | ## maybe a db table called "config"?
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240 | $dbh->do("INSERT INTO masterblocks (cidr,rwhois) VALUES (?,?)", undef, ($cidr,'y') );
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241 |
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242 | # Unrouted blocks aren't associated with a city (yet). We don't rely on this
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243 | # elsewhere though; legacy data may have traps and pitfalls in it to break this.
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244 | # Thus the "routed" flag.
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245 | $dbh->do("INSERT INTO freeblocks (cidr,maskbits,city,routed) VALUES (?,?,?,?)", undef,
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246 | ($cidr, $cidr->masklen, '<NULL>', 'n') );
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247 |
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248 | # If we get here, everything is happy. Commit changes.
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249 | $dbh->commit;
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250 |
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251 | } # done new master does not contain existing master(s)
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252 | else {
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253 |
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254 | # collect the master(s) we're going to absorb, and snag the longest netmask while we're at it.
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255 | my $smallmask = $cidr->masklen;
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256 | my $sth = $dbh->prepare("SELECT cidr FROM masterblocks WHERE cidr <<= ?");
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257 | $sth->execute($cidr);
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258 | my @cmasters;
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259 | while (my @data = $sth->fetchrow_array) {
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260 | my $master = new NetAddr::IP $data[0];
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261 | push @cmasters, $master;
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262 | $smallmask = $master->masklen if $master->masklen > $smallmask;
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263 | }
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264 |
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265 | # split the new master, and keep only those blocks not part of an existing master
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266 | my @blocklist;
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267 | foreach my $seg ($cidr->split($smallmask)) {
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268 | my $contained = 0;
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269 | foreach my $master (@cmasters) {
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270 | $contained = 1 if $master->contains($seg);
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271 | }
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272 | push @blocklist, $seg if !$contained;
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273 | }
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274 |
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275 | # collect the unrouted free blocks within the new master
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276 | $sth = $dbh->prepare("SELECT cidr FROM freeblocks WHERE maskbits <= ? AND cidr <<= ? AND routed = 'n'");
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277 | $sth->execute($smallmask, $cidr);
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278 | while (my @data = $sth->fetchrow_array) {
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279 | my $freeblock = new NetAddr::IP $data[0];
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280 | push @blocklist, $freeblock;
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281 | }
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282 |
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283 | # combine the set of free blocks we should have now.
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284 | @blocklist = Compact(@blocklist);
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285 |
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286 | # and now insert the new data. Make sure to delete old masters too.
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287 |
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288 | # freeblocks
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289 | $sth = $dbh->prepare("DELETE FROM freeblocks WHERE cidr <<= ?");
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290 | my $sth2 = $dbh->prepare("INSERT INTO freeblocks (cidr,maskbits,city,routed) VALUES (?,?,'<NULL>','n')");
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291 | foreach my $newblock (@blocklist) {
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292 | $sth->execute($newblock);
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293 | $sth2->execute($newblock, $newblock->masklen);
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294 | }
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295 |
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296 | # master
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297 | $dbh->do("DELETE FROM masterblocks WHERE cidr <<= ?", undef, ($cidr) );
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298 | $dbh->do("INSERT INTO masterblocks (cidr,rwhois) VALUES (?,?)", undef, ($cidr, 'y') );
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299 |
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300 | # *whew* If we got here, we likely suceeded.
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301 | $dbh->commit;
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302 | } # new master contained existing master(s)
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303 | }; # end eval
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304 |
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305 | if ($@) {
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306 | my $msg = $@;
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307 | eval { $dbh->rollback; };
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308 | return ('FAIL',$msg);
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309 | } else {
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310 | return ('OK','OK');
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311 | }
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312 | } # end addMaster
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313 |
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314 |
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315 | ## IPDB::allocateBlock()
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316 | # Does all of the magic of actually allocating a netblock
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317 | # Requires database handle, block to allocate, custid, type, city,
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318 | # description, notes, circuit ID, block to allocate from, private data
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319 | # Returns a success code and optional error message.
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320 | sub allocateBlock {
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321 | my ($dbh,undef,undef,$custid,$type,$city,$desc,$notes,$circid,$privdata,$nodeid) = @_;
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322 |
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323 | my $cidr = new NetAddr::IP $_[1];
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324 | my $alloc_from = new NetAddr::IP $_[2];
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325 | my $sth;
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326 |
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327 | $desc = '' if !$desc;
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328 | $notes = '' if !$notes;
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329 | $circid = '' if !$circid;
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330 | $privdata = '' if !$privdata;
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331 |
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332 | # Snag the "type" of the freeblock (alloc_from) "just in case"
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333 | $sth = $dbh->prepare("select routed from freeblocks where cidr='$alloc_from'");
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334 | $sth->execute;
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335 | my ($alloc_from_type) = $sth->fetchrow_array;
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336 |
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337 | # To contain the error message, if any.
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338 | my $msg = "Unknown error allocating $cidr as '$type'";
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339 |
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340 | # Enable transactions and error handling
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341 | local $dbh->{AutoCommit} = 0; # These need to be local so we don't
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342 | local $dbh->{RaiseError} = 1; # step on our toes by accident.
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343 |
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344 | if ($type =~ /^.i$/) {
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345 | $msg = "Unable to assign static IP $cidr to $custid";
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346 | eval {
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347 | # We have to do this in two parts because otherwise we lose
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348 | # the ability to return the IP assigned. Should that change,
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349 | # the commented SQL statement below may become usable.
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350 | # update poolips set custid='$custid',city='$city',available='n',
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351 | # description='$desc',notes='$notes',circuitid='$circid'
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352 | # where ip=(select ip from poolips where pool='$alloc_from'
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353 | # and available='y' order by ip limit 1);
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354 |
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355 | $sth = $dbh->prepare("select ip from poolips where pool='$alloc_from'".
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356 | " and available='y' order by ip");
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357 | $sth->execute;
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358 |
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359 | my @data = $sth->fetchrow_array;
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360 | $cidr = $data[0]; # $cidr is already declared when we get here!
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361 |
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362 | $sth = $dbh->prepare("update poolips set custid=?,city=?,".
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363 | "available='n',description=?,notes=?,circuitid=?,privdata=?".
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364 | " where ip=?");
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365 | $sth->execute($custid, $city, $desc, $notes, $circid, $privdata, "$cidr");
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366 | # node hack
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367 | if ($nodeid && $nodeid ne '') {
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368 | $sth = $dbh->prepare("INSERT INTO noderef (block,node_id) VALUES (?,?)");
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369 | $sth->execute("$cidr",$nodeid);
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370 | }
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371 | # end node hack
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372 | $dbh->commit;
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373 | };
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374 | if ($@) {
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375 | $msg .= ": '".$sth->errstr."'";
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376 | eval { $dbh->rollback; };
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377 | return ('FAIL',$msg);
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378 | } else {
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379 | return ('OK',"$cidr");
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380 | }
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381 |
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382 | } else { # end IP-from-pool allocation
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383 |
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384 | if ($cidr == $alloc_from) {
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385 | # Easiest case- insert in one table, delete in the other, and go home. More or less.
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386 | # insert into allocations values (cidr,custid,type,city,desc) and
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387 | # delete from freeblocks where cidr='cidr'
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388 | # For data safety on non-transaction DBs, we delete first.
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389 |
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390 | eval {
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391 | $msg = "Unable to allocate $cidr as '$disp_alloctypes{$type}'";
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392 | if ($type eq 'rm') {
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393 | $sth = $dbh->prepare("update freeblocks set routed='y',city='$city'".
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394 | " where cidr='$cidr'");
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395 | $sth->execute;
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396 | $sth = $dbh->prepare("insert into routed (cidr,maskbits,city)".
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397 | " values ('$cidr',".$cidr->masklen.",'$city')");
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398 | $sth->execute;
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399 | } else {
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400 | # common stuff for end-use, dialup, dynDSL, pools, etc, etc.
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401 |
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402 | # special case - block is a container/"reserve" block
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403 | if ($type =~ /^(.)c$/) {
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404 | $sth = $dbh->prepare("update freeblocks set routed='$1' where cidr='$cidr'");
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405 | $sth->execute;
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406 | } else {
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407 | # "normal" case
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408 | $sth = $dbh->prepare("delete from freeblocks where cidr='$cidr'");
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409 | $sth->execute;
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410 | }
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411 | $sth = $dbh->prepare("insert into allocations".
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412 | " (cidr,custid,type,city,description,notes,maskbits,circuitid,privdata)".
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413 | " values (?,?,?,?,?,?,?,?,?)");
|
---|
414 | $sth->execute("$cidr", $custid, $type, $city, $desc, $notes, $cidr->masklen, $circid, $privdata);
|
---|
415 |
|
---|
416 | # And initialize the pool, if necessary
|
---|
417 | # PPPoE pools (currently dialup, DSL, and WiFi) get all IPs made available
|
---|
418 | # "DHCP" or "real-subnet" pools have the net, gw, and bcast IPs removed.
|
---|
419 | if ($type =~ /^.p$/) {
|
---|
420 | $msg = "Could not initialize IPs in new $disp_alloctypes{$type} $cidr";
|
---|
421 | my ($code,$rmsg) = initPool($dbh,$cidr,$type,$city,"all");
|
---|
422 | die $rmsg if $code eq 'FAIL';
|
---|
423 | } elsif ($type =~ /^.d$/) {
|
---|
424 | $msg = "Could not initialize IPs in new $disp_alloctypes{$type} $cidr";
|
---|
425 | my ($code,$rmsg) = initPool($dbh,$cidr,$type,$city,"normal");
|
---|
426 | die $rmsg if $code eq 'FAIL';
|
---|
427 | }
|
---|
428 |
|
---|
429 | } # routing vs non-routing netblock
|
---|
430 |
|
---|
431 | # node hack
|
---|
432 | if ($nodeid && $nodeid ne '') {
|
---|
433 | $sth = $dbh->prepare("INSERT INTO noderef (block,node_id) VALUES (?,?)");
|
---|
434 | $sth->execute("$cidr",$nodeid);
|
---|
435 | }
|
---|
436 | # end node hack
|
---|
437 | $dbh->commit;
|
---|
438 | }; # end of eval
|
---|
439 | if ($@) {
|
---|
440 | $msg .= ": ".$@;
|
---|
441 | eval { $dbh->rollback; };
|
---|
442 | return ('FAIL',$msg);
|
---|
443 | } else {
|
---|
444 | return ('OK',"OK");
|
---|
445 | }
|
---|
446 |
|
---|
447 | } else { # cidr != alloc_from
|
---|
448 |
|
---|
449 | # Hard case. Allocation is smaller than free block.
|
---|
450 | my $wantmaskbits = $cidr->masklen;
|
---|
451 | my $maskbits = $alloc_from->masklen;
|
---|
452 |
|
---|
453 | my @newfreeblocks; # Holds free blocks generated from splitting the source freeblock.
|
---|
454 |
|
---|
455 | # This determines which blocks will be left "free" after allocation. We take the
|
---|
456 | # block we're allocating from, and split it in half. We see which half the wanted
|
---|
457 | # block is in, and repeat until the wanted block is equal to one of the halves.
|
---|
458 | my $i=0;
|
---|
459 | my $tmp_from = $alloc_from; # So we don't munge $alloc_from
|
---|
460 | while ($maskbits++ < $wantmaskbits) {
|
---|
461 | my @subblocks = $tmp_from->split($maskbits);
|
---|
462 | $newfreeblocks[$i++] = (($cidr->within($subblocks[0])) ? $subblocks[1] : $subblocks[0]);
|
---|
463 | $tmp_from = ( ($cidr->within($subblocks[0])) ? $subblocks[0] : $subblocks[1] );
|
---|
464 | } # while
|
---|
465 |
|
---|
466 | # Begin SQL transaction block
|
---|
467 | eval {
|
---|
468 | $msg = "Unable to allocate $cidr as '$disp_alloctypes{$type}'";
|
---|
469 |
|
---|
470 | # Delete old freeblocks entry
|
---|
471 | $sth = $dbh->prepare("delete from freeblocks where cidr='$alloc_from'");
|
---|
472 | $sth->execute();
|
---|
473 |
|
---|
474 | # now we have to do some magic for routing blocks
|
---|
475 | if ($type eq 'rm') {
|
---|
476 |
|
---|
477 | # Insert the new freeblocks entries
|
---|
478 | # Note that non-routed blocks are assigned to <NULL>
|
---|
479 | # and use the default value for the routed column ('n')
|
---|
480 | $sth = $dbh->prepare("insert into freeblocks (cidr,maskbits,city)".
|
---|
481 | " values (?, ?, '<NULL>')");
|
---|
482 | foreach my $block (@newfreeblocks) {
|
---|
483 | $sth->execute("$block", $block->masklen);
|
---|
484 | }
|
---|
485 |
|
---|
486 | # Insert the entry in the routed table
|
---|
487 | $sth = $dbh->prepare("insert into routed (cidr,maskbits,city)".
|
---|
488 | " values ('$cidr',".$cidr->masklen.",'$city')");
|
---|
489 | $sth->execute;
|
---|
490 | # Insert the (almost) same entry in the freeblocks table
|
---|
491 | $sth = $dbh->prepare("insert into freeblocks (cidr,maskbits,city,routed)".
|
---|
492 | " values ('$cidr',".$cidr->masklen.",'$city','y')");
|
---|
493 | $sth->execute;
|
---|
494 |
|
---|
495 | } else { # done with alloctype == rm
|
---|
496 |
|
---|
497 | # Insert the new freeblocks entries
|
---|
498 | # Along with some more HairyPerl(TM):
|
---|
499 | # if $alloc_type_from is p
|
---|
500 | # OR
|
---|
501 | # $type matches /^(.)r$/
|
---|
502 | # inserted value for routed column should match.
|
---|
503 | # This solves the case of inserting an arbitrary block into a
|
---|
504 | # "Reserve-for-routed-DSL" block. Which you really shouldn't
|
---|
505 | # do in the first place, but anyway...
|
---|
506 | $sth = $dbh->prepare("insert into freeblocks (cidr,maskbits,city,routed)".
|
---|
507 | " values (?, ?, (select city from routed where cidr >>= '$cidr'),'".
|
---|
508 | ( ( ($alloc_from_type =~ /^(p)$/) || ($type =~ /^(.)r$/) ) ? "$1" : 'y')."')");
|
---|
509 | foreach my $block (@newfreeblocks) {
|
---|
510 | $sth->execute("$block", $block->masklen);
|
---|
511 | }
|
---|
512 | # Special-case for reserve/"container" blocks - generate
|
---|
513 | # the "extra" freeblocks entry for the container
|
---|
514 | if ($type =~ /^(.)c$/) {
|
---|
515 | $sth = $dbh->prepare("insert into freeblocks (cidr,maskbits,city,routed)".
|
---|
516 | " values ('$cidr',".$cidr->masklen.",'$city','$1')");
|
---|
517 | $sth->execute;
|
---|
518 | }
|
---|
519 | # Insert the allocations entry
|
---|
520 | $sth = $dbh->prepare("insert into allocations (cidr,custid,type,city,".
|
---|
521 | "description,notes,maskbits,circuitid,privdata)".
|
---|
522 | " values (?,?,?,?,?,?,?,?,?)");
|
---|
523 | $sth->execute("$cidr", $custid, $type, $city, $desc, $notes, $cidr->masklen, $circid, $privdata);
|
---|
524 |
|
---|
525 | # And initialize the pool, if necessary
|
---|
526 | # PPPoE pools (currently dialup, DSL, and WiFi) get all IPs made available
|
---|
527 | # "DHCP" or "real-subnet" pools have the net, gw, and bcast IPs removed.
|
---|
528 | if ($type =~ /^.p$/) {
|
---|
529 | $msg = "Could not initialize IPs in new $disp_alloctypes{$type} $cidr";
|
---|
530 | my ($code,$rmsg) = initPool($dbh,$cidr,$type,$city,"all");
|
---|
531 | die $rmsg if $code eq 'FAIL';
|
---|
532 | } elsif ($type =~ /^.d$/) {
|
---|
533 | $msg = "Could not initialize IPs in new $disp_alloctypes{$type} $cidr";
|
---|
534 | my ($code,$rmsg) = initPool($dbh,$cidr,$type,$city,"normal");
|
---|
535 | die $rmsg if $code eq 'FAIL';
|
---|
536 | }
|
---|
537 |
|
---|
538 | } # done with netblock alloctype != rm
|
---|
539 |
|
---|
540 | # node hack
|
---|
541 | if ($nodeid && $nodeid ne '') {
|
---|
542 | $sth = $dbh->prepare("INSERT INTO noderef (block,node_id) VALUES (?,?)");
|
---|
543 | $sth->execute("$cidr",$nodeid);
|
---|
544 | }
|
---|
545 | # end node hack
|
---|
546 | $dbh->commit;
|
---|
547 | }; # end eval
|
---|
548 | if ($@) {
|
---|
549 | $msg .= ": ".$@;
|
---|
550 | eval { $dbh->rollback; };
|
---|
551 | return ('FAIL',$msg);
|
---|
552 | } else {
|
---|
553 | return ('OK',"OK");
|
---|
554 | }
|
---|
555 |
|
---|
556 | } # end fullcidr != alloc_from
|
---|
557 |
|
---|
558 | } # end static-IP vs netblock allocation
|
---|
559 |
|
---|
560 | } # end allocateBlock()
|
---|
561 |
|
---|
562 |
|
---|
563 | ## IPDB::initPool()
|
---|
564 | # Initializes a pool
|
---|
565 | # Requires a database handle, the pool CIDR, type, city, and a parameter
|
---|
566 | # indicating whether the pool should allow allocation of literally every
|
---|
567 | # IP, or if it should reserve network/gateway/broadcast IPs
|
---|
568 | # Note that this is NOT done in a transaction, that's why it's a private
|
---|
569 | # function and should ONLY EVER get called from allocateBlock()
|
---|
570 | sub initPool {
|
---|
571 | my ($dbh,undef,$type,$city,$class) = @_;
|
---|
572 | my $pool = new NetAddr::IP $_[1];
|
---|
573 |
|
---|
574 | ##fixme Need to just replace 2nd char of type with i rather than capturing 1st char of type
|
---|
575 | $type =~ s/[pd]$/i/;
|
---|
576 | my $sth;
|
---|
577 | my $msg;
|
---|
578 |
|
---|
579 | # Trap errors so we can pass them back to the caller. Even if the
|
---|
580 | # caller is only ever supposed to be local, and therefore already
|
---|
581 | # trapping errors. >:(
|
---|
582 | local $dbh->{AutoCommit} = 0; # These need to be local so we don't
|
---|
583 | local $dbh->{RaiseError} = 1; # step on our toes by accident.
|
---|
584 |
|
---|
585 | eval {
|
---|
586 | # have to insert all pool IPs into poolips table as "unallocated".
|
---|
587 | $sth = $dbh->prepare("insert into poolips (pool,ip,custid,city,type)".
|
---|
588 | " values ('$pool', ?, '$defcustid', ?, '$type')");
|
---|
589 | my @poolip_list = $pool->hostenum;
|
---|
590 | if ($class eq 'all') { # (DSL-ish block - *all* IPs available
|
---|
591 | if ($pool->addr !~ /\.0$/) { # .0 causes weirdness.
|
---|
592 | $sth->execute($pool->addr, $city);
|
---|
593 | }
|
---|
594 | for (my $i=0; $i<=$#poolip_list; $i++) {
|
---|
595 | $sth->execute($poolip_list[$i]->addr, $city);
|
---|
596 | }
|
---|
597 | $pool--;
|
---|
598 | if ($pool->addr !~ /\.255$/) { # .255 can cause weirdness.
|
---|
599 | $sth->execute($pool->addr, $city);
|
---|
600 | }
|
---|
601 | } else { # (real netblock)
|
---|
602 | for (my $i=1; $i<=$#poolip_list; $i++) {
|
---|
603 | $sth->execute($poolip_list[$i]->addr, $city);
|
---|
604 | }
|
---|
605 | }
|
---|
606 | };
|
---|
607 | if ($@) {
|
---|
608 | $msg = $@." '".$sth->errstr."'";
|
---|
609 | eval { $dbh->rollback; };
|
---|
610 | return ('FAIL',$msg);
|
---|
611 | } else {
|
---|
612 | return ('OK',"OK");
|
---|
613 | }
|
---|
614 | } # end initPool()
|
---|
615 |
|
---|
616 |
|
---|
617 | ## IPDB::deleteBlock()
|
---|
618 | # Removes an allocation from the database, including deleting IPs
|
---|
619 | # from poolips and recombining entries in freeblocks if possible
|
---|
620 | # Also handles "deleting" a static IP allocation, and removal of a master
|
---|
621 | # Requires a database handle, the block to delete, and the type of block
|
---|
622 | sub deleteBlock {
|
---|
623 | my ($dbh,undef,$type) = @_;
|
---|
624 | my $cidr = new NetAddr::IP $_[1];
|
---|
625 |
|
---|
626 | my $sth;
|
---|
627 |
|
---|
628 | # Magic variables used for odd allocation cases.
|
---|
629 | my $container;
|
---|
630 | my $con_type;
|
---|
631 |
|
---|
632 | # To contain the error message, if any.
|
---|
633 | my $msg = "Unknown error deallocating $type $cidr";
|
---|
634 | # Enable transactions and exception-on-errors... but only for this sub
|
---|
635 | local $dbh->{AutoCommit} = 0;
|
---|
636 | local $dbh->{RaiseError} = 1;
|
---|
637 |
|
---|
638 | # First case. The "block" is a static IP
|
---|
639 | # Note that we still need some additional code in the odd case
|
---|
640 | # of a netblock-aligned contiguous group of static IPs
|
---|
641 | if ($type =~ /^.i$/) {
|
---|
642 |
|
---|
643 | eval {
|
---|
644 | $msg = "Unable to deallocate $disp_alloctypes{$type} $cidr";
|
---|
645 | $sth = $dbh->prepare("update poolips set custid=?,available='y',".
|
---|
646 | "city=(select city from allocations where cidr >>= ?".
|
---|
647 | " order by masklen(cidr) desc limit 1),".
|
---|
648 | "description='',notes='',circuitid='' where ip=?");
|
---|
649 | $sth->execute($defcustid, "$cidr", "$cidr");
|
---|
650 | $dbh->commit;
|
---|
651 | };
|
---|
652 | if ($@) {
|
---|
653 | eval { $dbh->rollback; };
|
---|
654 | return ('FAIL',$msg);
|
---|
655 | } else {
|
---|
656 | return ('OK',"OK");
|
---|
657 | }
|
---|
658 |
|
---|
659 | } elsif ($type eq 'mm') { # end alloctype =~ /.i/
|
---|
660 |
|
---|
661 | $msg = "Unable to delete master block $cidr";
|
---|
662 | eval {
|
---|
663 | $sth = $dbh->prepare("delete from masterblocks where cidr='$cidr'");
|
---|
664 | $sth->execute;
|
---|
665 | $sth = $dbh->prepare("delete from freeblocks where cidr <<= '$cidr'");
|
---|
666 | $sth->execute;
|
---|
667 | $dbh->commit;
|
---|
668 | };
|
---|
669 | if ($@) {
|
---|
670 | eval { $dbh->rollback; };
|
---|
671 | return ('FAIL', $msg);
|
---|
672 | } else {
|
---|
673 | return ('OK',"OK");
|
---|
674 | }
|
---|
675 |
|
---|
676 | } else { # end alloctype master block case
|
---|
677 |
|
---|
678 | ## This is a big block; but it HAS to be done in a chunk. Any removal
|
---|
679 | ## of a netblock allocation may result in a larger chunk of free
|
---|
680 | ## contiguous IP space - which may in turn be combined into a single
|
---|
681 | ## netblock rather than a number of smaller netblocks.
|
---|
682 |
|
---|
683 | eval {
|
---|
684 |
|
---|
685 | if ($type eq 'rm') {
|
---|
686 | $msg = "Unable to remove routing allocation $cidr";
|
---|
687 | $sth = $dbh->prepare("delete from routed where cidr='$cidr'");
|
---|
688 | $sth->execute;
|
---|
689 | # Make sure block getting deleted is properly accounted for.
|
---|
690 | $sth = $dbh->prepare("update freeblocks set routed='n',city='<NULL>'".
|
---|
691 | " where cidr='$cidr'");
|
---|
692 | $sth->execute;
|
---|
693 | # Set up query to start compacting free blocks.
|
---|
694 | $sth = $dbh->prepare("select cidr from freeblocks where ".
|
---|
695 | "maskbits<=".$cidr->masklen." and routed='n' order by maskbits desc");
|
---|
696 |
|
---|
697 | } else { # end alloctype routing case
|
---|
698 |
|
---|
699 | # Magic. We need to get information about the containing block (if any)
|
---|
700 | # so as to make sure that the freeblocks we insert get the correct "type".
|
---|
701 | $sth = $dbh->prepare("select cidr,type from allocations where cidr >> '$cidr'");
|
---|
702 | $sth->execute;
|
---|
703 | ($container, $con_type) = $sth->fetchrow_array;
|
---|
704 |
|
---|
705 | # Delete all allocations within the block being deleted. This is
|
---|
706 | # deliberate and correct, and removes the need to special-case
|
---|
707 | # removal of "container" blocks.
|
---|
708 | $sth = $dbh->prepare("delete from allocations where cidr <<='$cidr'");
|
---|
709 | $sth->execute;
|
---|
710 |
|
---|
711 | # Special case - delete pool IPs
|
---|
712 | if ($type =~ /^.[pd]$/) {
|
---|
713 | # We have to delete the IPs from the pool listing.
|
---|
714 | $sth = $dbh->prepare("delete from poolips where pool='$cidr'");
|
---|
715 | $sth->execute;
|
---|
716 | }
|
---|
717 |
|
---|
718 | # Set up query for compacting free blocks.
|
---|
719 | if ($con_type && $con_type eq 'pc') {
|
---|
720 | # Clean up after "bad" allocations (blocks that are not formally
|
---|
721 | # contained which have nevertheless been allocated from a container block)
|
---|
722 | # We want to make certain that the freeblocks are properly "labelled"
|
---|
723 | $sth = $dbh->prepare("select cidr from freeblocks where cidr <<= '$container' order by maskbits desc");
|
---|
724 | } else {
|
---|
725 | # Standard deallocation.
|
---|
726 | $sth = $dbh->prepare("select cidr from freeblocks where cidr <<= ".
|
---|
727 | "(select cidr from routed where cidr >>= '$cidr') ".
|
---|
728 | " and maskbits<=".$cidr->masklen.
|
---|
729 | " and routed='".(($type =~ /^(.)r$/) ? "$1" : 'y').
|
---|
730 | "' order by maskbits desc");
|
---|
731 | }
|
---|
732 |
|
---|
733 | } # end alloctype general case
|
---|
734 |
|
---|
735 | ## Deallocate legacy blocks stashed in the middle of a static IP pool
|
---|
736 | ## This may be expandable to an even more general case of contained netblock, or other pool types.
|
---|
737 |
|
---|
738 | # Find out if the block we're deallocating is within a DSL pool
|
---|
739 | my $sth2 = $dbh->prepare("SELECT cidr,city,type FROM allocations WHERE type LIKE '_p' AND cidr >>= ?");
|
---|
740 | $sth2->execute("$cidr");
|
---|
741 | my ($pool,$poolcity,$pooltype) = $sth2->fetchrow_array;
|
---|
742 |
|
---|
743 | if ($pool || $sth2->rows) {
|
---|
744 | # We've already deleted the block, now we have to stuff its IPs into the pool.
|
---|
745 | $pooltype =~ s/p$/i/; # change type to static IP
|
---|
746 | $sth2 = $dbh->prepare("INSERT INTO poolips (pool,ip,city,type,custid) values ".
|
---|
747 | "('$pool',?,'$poolcity','$pooltype','$defcustid')");
|
---|
748 | ##fixme: need to not insert net, gateway, and bcast on "real netblock" pools (DHCPish)
|
---|
749 | # don't insert .0
|
---|
750 | $sth2->execute($cidr->addr) unless $cidr->addr =~ m|\.0$|;
|
---|
751 | foreach my $ip ($cidr->hostenum) {
|
---|
752 | $sth2->execute("$ip");
|
---|
753 | }
|
---|
754 | $cidr--;
|
---|
755 | # don't insert .255
|
---|
756 | $sth2->execute($cidr->addr) unless $cidr->addr =~ m|\.255$|;
|
---|
757 | } else { # done returning IPs from a block to a static DSL pool
|
---|
758 |
|
---|
759 | # Now we look for larger-or-equal-sized free blocks in the same master (routed)
|
---|
760 | # (super)block. If there aren't any, we can't combine blocks anyway. If there
|
---|
761 | # are, we check to see if we can combine blocks.
|
---|
762 | # Execute the statement prepared in the if-else above.
|
---|
763 |
|
---|
764 | $sth->execute;
|
---|
765 |
|
---|
766 | # NetAddr::IP->compact() attempts to produce the smallest inclusive block
|
---|
767 | # from the caller and the passed terms.
|
---|
768 | # EG: if you call $cidr->compact($ip1,$ip2,$ip3) when $cidr, $ip1, $ip2,
|
---|
769 | # and $ip3 are consecutive /27's starting on .0 (.0-.31, .32-.63,
|
---|
770 | # .64-.95, and .96-.128), you will get an array containing a single
|
---|
771 | # /25 as element 0 (.0-.127). Order is not important; you could have
|
---|
772 | # $cidr=.32/27, $ip1=.96/27, $ip2=.0/27, and $ip3=.64/27.
|
---|
773 |
|
---|
774 | my (@together, @combinelist);
|
---|
775 | my $i=0;
|
---|
776 | while (my @data = $sth->fetchrow_array) {
|
---|
777 | my $testIP = new NetAddr::IP $data[0];
|
---|
778 | @together = $testIP->compact($cidr);
|
---|
779 | my $num = @together;
|
---|
780 | if ($num == 1) {
|
---|
781 | $cidr = $together[0];
|
---|
782 | $combinelist[$i++] = $testIP;
|
---|
783 | }
|
---|
784 | }
|
---|
785 |
|
---|
786 | # Clear old freeblocks entries - if any. They should all be within
|
---|
787 | # the $cidr determined above.
|
---|
788 | $sth = $dbh->prepare("delete from freeblocks where cidr <<='$cidr'");
|
---|
789 | $sth->execute;
|
---|
790 |
|
---|
791 | # insert "new" freeblocks entry
|
---|
792 | if ($type eq 'rm') {
|
---|
793 | $sth = $dbh->prepare("insert into freeblocks (cidr,maskbits,city)".
|
---|
794 | " values ('$cidr',".$cidr->masklen.",'<NULL>')");
|
---|
795 | } else {
|
---|
796 | # Magic hackery to insert "correct" data for deallocation of
|
---|
797 | # non-contained blocks allocated from within a container.
|
---|
798 | $type = 'pr' if $con_type && $con_type eq 'pc';
|
---|
799 |
|
---|
800 | $sth = $dbh->prepare("insert into freeblocks (cidr,maskbits,city,routed)".
|
---|
801 | " values ('$cidr',".$cidr->masklen.
|
---|
802 | ",(select city from routed where cidr >>= '$cidr'),'".
|
---|
803 | (($type =~ /^(.)r$/) ? "$1" : 'y')."')");
|
---|
804 | }
|
---|
805 | $sth->execute;
|
---|
806 |
|
---|
807 | } # done returning IPs to the appropriate place
|
---|
808 |
|
---|
809 | # If we got here, we've succeeded. Whew!
|
---|
810 | $dbh->commit;
|
---|
811 | }; # end eval
|
---|
812 | if ($@) {
|
---|
813 | $msg = $@;
|
---|
814 | eval { $dbh->rollback; };
|
---|
815 | return ('FAIL', $msg);
|
---|
816 | } else {
|
---|
817 | return ('OK',"OK");
|
---|
818 | }
|
---|
819 |
|
---|
820 | } # end alloctype != netblock
|
---|
821 |
|
---|
822 | } # end deleteBlock()
|
---|
823 |
|
---|
824 |
|
---|
825 | ## IPDB::getBlockData()
|
---|
826 | # Return custid, type, city, and description for a block
|
---|
827 | sub getBlockData {
|
---|
828 | my $dbh = shift;
|
---|
829 | my $block = shift;
|
---|
830 |
|
---|
831 | my $sth = $dbh->prepare("select cidr,custid,type,city,description from searchme".
|
---|
832 | " where cidr='$block'");
|
---|
833 | $sth->execute();
|
---|
834 | return $sth->fetchrow_array();
|
---|
835 | } # end getBlockData()
|
---|
836 |
|
---|
837 |
|
---|
838 | ## IPDB::getNodeList()
|
---|
839 | # Gets a list of node ID+name pairs as an arrayref to a list of hashrefs
|
---|
840 | sub getNodeList {
|
---|
841 | my $dbh = shift;
|
---|
842 |
|
---|
843 | my $ret = $dbh->selectall_arrayref("SELECT node_id, node_name FROM nodes ORDER BY node_type,node_id",
|
---|
844 | { Slice => {} });
|
---|
845 | return $ret;
|
---|
846 | } # end getNodeList()
|
---|
847 |
|
---|
848 |
|
---|
849 | ## IPDB::mailNotify()
|
---|
850 | # Sends notification mail to recipients regarding an IPDB operation
|
---|
851 | sub mailNotify {
|
---|
852 | my $dbh = shift;
|
---|
853 | my ($action,$subj,$message) = @_;
|
---|
854 |
|
---|
855 | return if $smtphost eq 'smtp.example.com'; # do nothing if still using default SMTP host.
|
---|
856 |
|
---|
857 | ##fixme: need to redesign the breakdown/processing for $action for proper handling of all cases
|
---|
858 |
|
---|
859 | # split action into parts for fiddlement. nb: there are almost certainly better ways to do this.
|
---|
860 | my @actionbits = split //, $action;
|
---|
861 |
|
---|
862 | # want to notify anyone who has specifically requested notify on *this* type ($action as passed),
|
---|
863 | # on "all static IP types" or "all pool types" (and other last-char-in-type groupings), on eg "all DSL types",
|
---|
864 | # and "all events with this action"
|
---|
865 | my @actionsets = ($action);
|
---|
866 | ##fixme: ick, eww. really gotta find a better way to handle this...
|
---|
867 | push @actionsets, ($actionbits[0].'.'.$actionbits[2],
|
---|
868 | $actionbits[0].$actionbits[1].'.', $actionbits[0].'a') if $action =~ /^.{3}$/;
|
---|
869 |
|
---|
870 | my $mailer = Net::SMTP->new($smtphost, Hello => "ipdb.$domain");
|
---|
871 |
|
---|
872 | # get recip list from db
|
---|
873 | my $sth = $dbh->prepare("SELECT reciplist FROM notify WHERE action=?");
|
---|
874 |
|
---|
875 | my %reciplist;
|
---|
876 | foreach (@actionsets) {
|
---|
877 | $sth->execute($_);
|
---|
878 | ##fixme - need to handle db errors
|
---|
879 | my ($recipsub) = $sth->fetchrow_array;
|
---|
880 | next if !$recipsub;
|
---|
881 | foreach (split(/,/, $recipsub)) {
|
---|
882 | $reciplist{$_}++;
|
---|
883 | }
|
---|
884 | }
|
---|
885 |
|
---|
886 | return if !%reciplist;
|
---|
887 |
|
---|
888 | foreach my $recip (keys %reciplist) {
|
---|
889 | $mailer->mail("ipdb\@$domain");
|
---|
890 | $mailer->to($recip);
|
---|
891 | $mailer->data("From: \"$org_name IP Database\" <ipdb\@$domain>\n",
|
---|
892 | "To: $recip\n",
|
---|
893 | "Date: ".strftime("%a, %d %b %Y %H:%M:%S %z",localtime)."\n",
|
---|
894 | "Subject: {IPDB} $subj\n",
|
---|
895 | "X-Mailer: IPDB Notify v".sprintf("%.1d",$IPDB::VERSION)."\n",
|
---|
896 | "Organization: $org_name\n",
|
---|
897 | "\n$message\n");
|
---|
898 | }
|
---|
899 | $mailer->quit;
|
---|
900 | }
|
---|
901 |
|
---|
902 | # Indicates module loaded OK. Required by Perl.
|
---|
903 | 1;
|
---|