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: 2006-04-19 22:00:47 +0000 (Wed, 19 Apr 2006) $
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6 | # SVN revision $Rev: 337 $
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7 | # Last update by $Author: kdeugau $
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8 | ###
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9 | # Copyright (C) 2004-2006 - 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 POSIX;
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19 | use vars qw($VERSION @ISA @EXPORT @EXPORT_OK %EXPORT_TAGS);
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20 |
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21 | $VERSION = 2.0;
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22 | @ISA = qw(Exporter);
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23 | @EXPORT_OK = qw(
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24 | %disp_alloctypes %list_alloctypes %def_custids @citylist @poplist @masterblocks
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25 | %allocated %free %routed %bigfree %IPDBacl
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26 | &initIPDBGlobals &connectDB &finish &checkDBSanity &allocateBlock &deleteBlock
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27 | &mailNotify
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28 | );
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29 |
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30 | @EXPORT = (); # Export nothing by default.
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31 | %EXPORT_TAGS = ( ALL => [qw(
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32 | %disp_alloctypes %list_alloctypes %def_custids @citylist @poplist
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33 | @masterblocks %allocated %free %routed %bigfree %IPDBacl
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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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38 |
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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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44 | our %def_custids;
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45 | our @citylist;
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46 | our @poplist;
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47 | our @masterblocks;
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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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52 | our %IPDBacl;
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53 |
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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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61 | # Initialize alloctypes hashes
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62 | $sth = $dbh->prepare("select type,listname,dispname,listorder,def_custid from alloctypes order by listorder");
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63 | $sth->execute;
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64 | while (my @data = $sth->fetchrow_array) {
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65 | $disp_alloctypes{$data[0]} = $data[2];
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66 | $def_custids{$data[0]} = $data[4];
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67 | if ($data[3] < 900) {
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68 | $list_alloctypes{$data[0]} = $data[1];
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69 | }
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70 | }
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71 |
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72 | # City and POP listings
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73 | $sth = $dbh->prepare("select city,routing from cities order by city");
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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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77 | push @citylist, $data[0];
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78 | if ($data[1] eq 'y') {
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79 | push @poplist, $data[0];
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80 | }
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81 | }
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82 |
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83 | # Master block list
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84 | $sth = $dbh->prepare("select cidr from masterblocks order by cidr");
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85 | $sth->execute;
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86 | return (undef,$sth->errstr) if $sth->err;
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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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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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94 | }
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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 | $sth->execute;
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99 | return (undef,$sth->errstr) if $sth->err;
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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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103 |
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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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109 | # Creates connection to IPDB.
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110 | # Requires the database name, username, and password.
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111 | # Returns a handle to the db.
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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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116 | sub connectDB {
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117 | my ($dbname,$user,$pass) = @_;
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118 | my $dbh;
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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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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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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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130 |
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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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133 | my $sth = $dbh->prepare("select type from alloctypes");
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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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144 | } # end connectDB
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145 |
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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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156 | ## IPDB::checkDBSanity()
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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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160 | my ($dbh) = $_[0];
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161 |
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162 | if (!$dbh) {
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163 | print "No database handle, or connection has been closed.";
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164 | return -1;
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165 | } else {
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166 | # it connects, try a stmt.
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167 | my $sth = $dbh->prepare("select type from alloctypes");
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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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174 | print "Connected to the database, but could not execute test statement. ".$sth->errstr();
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175 | return -1;
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176 | }
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177 | }
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178 | # Clean up after ourselves.
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179 | # $dbh->disconnect;
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180 | } # end checkDBSanity
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181 |
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182 |
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183 | ## IPDB::allocateBlock()
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184 | # Does all of the magic of actually allocating a netblock
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185 | # Requires database handle, block to allocate, custid, type, city,
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186 | # description, notes, circuit ID, block to allocate from, private data
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187 | # Returns a success code and optional error message.
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188 | sub allocateBlock {
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189 | my ($dbh,undef,undef,$custid,$type,$city,$desc,$notes,$circid,$privdata) = @_;
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190 |
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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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194 |
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195 | # Snag the "type" of the freeblock (alloc_from) "just in case"
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196 | $sth = $dbh->prepare("select routed from freeblocks where cidr='$alloc_from'");
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197 | $sth->execute;
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198 | my ($alloc_from_type) = $sth->fetchrow_array;
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199 |
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200 | # To contain the error message, if any.
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201 | my $msg = "Unknown error allocating $cidr as '$type'";
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202 |
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203 | # Enable transactions and error handling
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204 | local $dbh->{AutoCommit} = 0; # These need to be local so we don't
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205 | local $dbh->{RaiseError} = 1; # step on our toes by accident.
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206 |
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207 | if ($type =~ /^.i$/) {
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208 | $msg = "Unable to assign static IP $cidr to $custid";
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209 | eval {
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210 | # We have to do this in two parts because otherwise we lose
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211 | # the ability to return the IP assigned. Should that change,
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212 | # the commented SQL statement below may become usable.
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213 | # update poolips set custid='$custid',city='$city',available='n',
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214 | # description='$desc',notes='$notes',circuitid='$circid'
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215 | # where ip=(select ip from poolips where pool='$alloc_from'
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216 | # and available='y' order by ip limit 1);
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217 |
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218 | $sth = $dbh->prepare("select ip from poolips where pool='$alloc_from'".
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219 | " and available='y' order by ip");
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220 | $sth->execute;
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221 |
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222 | my @data = $sth->fetchrow_array;
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223 | $cidr = $data[0]; # $cidr is already declared when we get here!
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224 |
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225 | $sth = $dbh->prepare("update poolips set custid='$custid',".
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226 | "city='$city',available='n',description='$desc',notes='$notes',".
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227 | "circuitid='$circid',privdata='$privdata'".
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228 | " where ip='$cidr'");
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229 | $sth->execute;
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230 | $dbh->commit;
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231 | };
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232 | if ($@) {
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233 | $msg .= ": '".$sth->errstr."'";
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234 | eval { $dbh->rollback; };
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235 | return ('FAIL',$msg);
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236 | } else {
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237 | return ('OK',"$cidr");
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238 | }
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239 |
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240 | } else { # end IP-from-pool allocation
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241 |
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242 | if ($cidr == $alloc_from) {
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243 | # Easiest case- insert in one table, delete in the other, and go home. More or less.
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244 | # insert into allocations values (cidr,custid,type,city,desc) and
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245 | # delete from freeblocks where cidr='cidr'
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246 | # For data safety on non-transaction DBs, we delete first.
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247 |
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248 | eval {
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249 | $msg = "Unable to allocate $cidr as '$disp_alloctypes{$type}'";
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250 | if ($type eq 'rm') {
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251 | $sth = $dbh->prepare("update freeblocks set routed='y',city='$city'".
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252 | " where cidr='$cidr'");
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253 | $sth->execute;
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254 | $sth = $dbh->prepare("insert into routed (cidr,maskbits,city)".
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255 | " values ('$cidr',".$cidr->masklen.",'$city')");
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256 | $sth->execute;
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257 | } else {
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258 | # common stuff for end-use, dialup, dynDSL, pools, etc, etc.
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259 |
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260 | # special case - block is a container/"reserve" block
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261 | if ($type =~ /^(.)c$/) {
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262 | $sth = $dbh->prepare("update freeblocks set routed='$1' where cidr='$cidr'");
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263 | $sth->execute;
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264 | } else {
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265 | # "normal" case
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266 | $sth = $dbh->prepare("delete from freeblocks where cidr='$cidr'");
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267 | $sth->execute;
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268 | }
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269 | $sth = $dbh->prepare("insert into allocations".
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270 | " (cidr,custid,type,city,description,notes,maskbits,circuitid,privdata)".
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271 | " values ('$cidr','$custid','$type','$city','$desc','$notes',".
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272 | $cidr->masklen.",'$circid','$privdata')");
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273 | $sth->execute;
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274 |
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275 | # And initialize the pool, if necessary
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276 | # PPPoE pools (currently dialup, DSL, and WiFi) get all IPs made available
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277 | # "DHCP" or "real-subnet" pools have the net, gw, and bcast IPs removed.
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278 | if ($type =~ /^.p$/) {
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279 | $msg = "Could not initialize IPs in new $disp_alloctypes{$type} $cidr";
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280 | my ($code,$rmsg) = initPool($dbh,$cidr,$type,$city,"all");
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281 | die $rmsg if $code eq 'FAIL';
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282 | } elsif ($type =~ /^.d$/) {
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283 | $msg = "Could not initialize IPs in new $disp_alloctypes{$type} $cidr";
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284 | my ($code,$rmsg) = initPool($dbh,$cidr,$type,$city,"normal");
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285 | die $rmsg if $code eq 'FAIL';
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286 | }
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287 |
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288 | } # routing vs non-routing netblock
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289 |
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290 | $dbh->commit;
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291 | }; # end of eval
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292 | if ($@) {
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293 | $msg .= ": ".$@;
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294 | eval { $dbh->rollback; };
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295 | return ('FAIL',$msg);
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296 | } else {
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297 | return ('OK',"OK");
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298 | }
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299 |
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300 | } else { # cidr != alloc_from
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301 |
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302 | # Hard case. Allocation is smaller than free block.
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303 | my $wantmaskbits = $cidr->masklen;
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304 | my $maskbits = $alloc_from->masklen;
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305 |
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306 | my @newfreeblocks; # Holds free blocks generated from splitting the source freeblock.
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307 |
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308 | # This determines which blocks will be left "free" after allocation. We take the
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309 | # block we're allocating from, and split it in half. We see which half the wanted
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310 | # block is in, and repeat until the wanted block is equal to one of the halves.
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311 | my $i=0;
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312 | my $tmp_from = $alloc_from; # So we don't munge $alloc_from
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313 | while ($maskbits++ < $wantmaskbits) {
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314 | my @subblocks = $tmp_from->split($maskbits);
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315 | $newfreeblocks[$i++] = (($cidr->within($subblocks[0])) ? $subblocks[1] : $subblocks[0]);
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316 | $tmp_from = ( ($cidr->within($subblocks[0])) ? $subblocks[0] : $subblocks[1] );
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317 | } # while
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318 |
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319 | # Begin SQL transaction block
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320 | eval {
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321 | $msg = "Unable to allocate $cidr as '$disp_alloctypes{$type}'";
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322 |
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323 | # Delete old freeblocks entry
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324 | $sth = $dbh->prepare("delete from freeblocks where cidr='$alloc_from'");
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325 | $sth->execute();
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326 |
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327 | # now we have to do some magic for routing blocks
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328 | if ($type eq 'rm') {
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329 |
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330 | # Insert the new freeblocks entries
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331 | # Note that non-routed blocks are assigned to <NULL>
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332 | # and use the default value for the routed column ('n')
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333 | $sth = $dbh->prepare("insert into freeblocks (cidr,maskbits,city)".
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334 | " values (?, ?, '<NULL>')");
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335 | foreach my $block (@newfreeblocks) {
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336 | $sth->execute("$block", $block->masklen);
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337 | }
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338 |
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339 | # Insert the entry in the routed table
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340 | $sth = $dbh->prepare("insert into routed (cidr,maskbits,city)".
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341 | " values ('$cidr',".$cidr->masklen.",'$city')");
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342 | $sth->execute;
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343 | # Insert the (almost) same entry in the freeblocks table
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344 | $sth = $dbh->prepare("insert into freeblocks (cidr,maskbits,city,routed)".
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345 | " values ('$cidr',".$cidr->masklen.",'$city','y')");
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346 | $sth->execute;
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347 |
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348 | } else { # done with alloctype == rm
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349 |
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350 | # Insert the new freeblocks entries
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351 | # Along with some more HairyPerl(TM):
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352 | # if $alloc_type_from is p
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353 | # OR
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354 | # $type matches /^(.)r$/
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355 | # inserted value for routed column should match.
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356 | # This solves the case of inserting an arbitrary block into a
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357 | # "Reserve-for-routed-DSL" block. Which you really shouldn't
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358 | # do in the first place, but anyway...
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359 | $sth = $dbh->prepare("insert into freeblocks (cidr,maskbits,city,routed)".
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360 | " values (?, ?, (select city from routed where cidr >>= '$cidr'),'".
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361 | ( ( ($alloc_from_type =~ /^(p)$/) || ($type =~ /^(.)r$/) ) ? "$1" : 'y')."')");
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362 | foreach my $block (@newfreeblocks) {
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363 | $sth->execute("$block", $block->masklen);
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364 | }
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365 | # Special-case for reserve/"container" blocks - generate
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366 | # the "extra" freeblocks entry for the container
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367 | if ($type =~ /^(.)c$/) {
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368 | $sth = $dbh->prepare("insert into freeblocks (cidr,maskbits,city,routed)".
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369 | " values ('$cidr',".$cidr->masklen.",'$city','$1')");
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370 | $sth->execute;
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371 | }
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372 | # Insert the allocations entry
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373 | $sth = $dbh->prepare("insert into allocations (cidr,custid,type,city,".
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374 | "description,notes,maskbits,circuitid,privdata)".
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375 | " values ('$cidr','$custid','$type','$city','$desc','$notes',".
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376 | $cidr->masklen.",'$circid','$privdata')");
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377 | $sth->execute;
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378 |
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379 | # And initialize the pool, if necessary
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380 | # PPPoE pools (currently dialup, DSL, and WiFi) get all IPs made available
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381 | # "DHCP" or "real-subnet" pools have the net, gw, and bcast IPs removed.
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382 | if ($type =~ /^.p$/) {
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383 | $msg = "Could not initialize IPs in new $disp_alloctypes{$type} $cidr";
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384 | my ($code,$rmsg) = initPool($dbh,$cidr,$type,$city,"all");
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385 | die $rmsg if $code eq 'FAIL';
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386 | } elsif ($type =~ /^.d$/) {
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387 | $msg = "Could not initialize IPs in new $disp_alloctypes{$type} $cidr";
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388 | my ($code,$rmsg) = initPool($dbh,$cidr,$type,$city,"normal");
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389 | die $rmsg if $code eq 'FAIL';
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390 | }
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391 |
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392 | } # done with netblock alloctype != rm
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393 |
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394 | $dbh->commit;
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395 | }; # end eval
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396 | if ($@) {
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397 | $msg .= ": ".$@;
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398 | eval { $dbh->rollback; };
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399 | return ('FAIL',$msg);
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400 | } else {
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401 | return ('OK',"OK");
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402 | }
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403 |
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404 | } # end fullcidr != alloc_from
|
---|
405 |
|
---|
406 | } # end static-IP vs netblock allocation
|
---|
407 |
|
---|
408 | } # end allocateBlock()
|
---|
409 |
|
---|
410 |
|
---|
411 | ## IPDB::initPool()
|
---|
412 | # Initializes a pool
|
---|
413 | # Requires a database handle, the pool CIDR, type, city, and a parameter
|
---|
414 | # indicating whether the pool should allow allocation of literally every
|
---|
415 | # IP, or if it should reserve network/gateway/broadcast IPs
|
---|
416 | # Note that this is NOT done in a transaction, that's why it's a private
|
---|
417 | # function and should ONLY EVER get called from allocateBlock()
|
---|
418 | sub initPool {
|
---|
419 | my ($dbh,undef,$type,$city,$class) = @_;
|
---|
420 | my $pool = new NetAddr::IP $_[1];
|
---|
421 |
|
---|
422 | ##fixme Need to just replace 2nd char of type with i rather than capturing 1st char of type
|
---|
423 | $type =~ s/[pd]$/i/;
|
---|
424 | my $sth;
|
---|
425 | my $msg;
|
---|
426 |
|
---|
427 | # Trap errors so we can pass them back to the caller. Even if the
|
---|
428 | # caller is only ever supposed to be local, and therefore already
|
---|
429 | # trapping errors. >:(
|
---|
430 | local $dbh->{AutoCommit} = 0; # These need to be local so we don't
|
---|
431 | local $dbh->{RaiseError} = 1; # step on our toes by accident.
|
---|
432 |
|
---|
433 | eval {
|
---|
434 | # have to insert all pool IPs into poolips table as "unallocated".
|
---|
435 | $sth = $dbh->prepare("insert into poolips (pool,ip,custid,city,type)".
|
---|
436 | " values ('$pool', ?, '6750400', '$city', '$type')");
|
---|
437 | my @poolip_list = $pool->hostenum;
|
---|
438 | if ($class eq 'all') { # (DSL-ish block - *all* IPs available
|
---|
439 | if ($pool->addr !~ /\.0$/) { # .0 causes weirdness.
|
---|
440 | $sth->execute($pool->addr);
|
---|
441 | }
|
---|
442 | for (my $i=0; $i<=$#poolip_list; $i++) {
|
---|
443 | $sth->execute($poolip_list[$i]->addr);
|
---|
444 | }
|
---|
445 | $pool--;
|
---|
446 | if ($pool->addr !~ /\.255$/) { # .255 can cause weirdness.
|
---|
447 | $sth->execute($pool->addr);
|
---|
448 | }
|
---|
449 | } else { # (real netblock)
|
---|
450 | for (my $i=1; $i<=$#poolip_list; $i++) {
|
---|
451 | $sth->execute($poolip_list[$i]->addr);
|
---|
452 | }
|
---|
453 | }
|
---|
454 | };
|
---|
455 | if ($@) {
|
---|
456 | $msg = "'".$sth->errstr."'";
|
---|
457 | eval { $dbh->rollback; };
|
---|
458 | return ('FAIL',$msg);
|
---|
459 | } else {
|
---|
460 | return ('OK',"OK");
|
---|
461 | }
|
---|
462 | } # end initPool()
|
---|
463 |
|
---|
464 |
|
---|
465 | ## IPDB::deleteBlock()
|
---|
466 | # Removes an allocation from the database, including deleting IPs
|
---|
467 | # from poolips and recombining entries in freeblocks if possible
|
---|
468 | # Also handles "deleting" a static IP allocation, and removal of a master
|
---|
469 | # Requires a database handle, the block to delete, and the type of block
|
---|
470 | sub deleteBlock {
|
---|
471 | my ($dbh,undef,$type) = @_;
|
---|
472 | my $cidr = new NetAddr::IP $_[1];
|
---|
473 |
|
---|
474 | my $sth;
|
---|
475 |
|
---|
476 | # Magic variables used for odd allocation cases.
|
---|
477 | my $container;
|
---|
478 | my $con_type;
|
---|
479 |
|
---|
480 | # To contain the error message, if any.
|
---|
481 | my $msg = "Unknown error deallocating $type $cidr";
|
---|
482 | # Enable transactions and exception-on-errors... but only for this sub
|
---|
483 | local $dbh->{AutoCommit} = 0;
|
---|
484 | local $dbh->{RaiseError} = 1;
|
---|
485 |
|
---|
486 | # First case. The "block" is a static IP
|
---|
487 | # Note that we still need some additional code in the odd case
|
---|
488 | # of a netblock-aligned contiguous group of static IPs
|
---|
489 | if ($type =~ /^.i$/) {
|
---|
490 |
|
---|
491 | eval {
|
---|
492 | $msg = "Unable to deallocate $disp_alloctypes{$type} $cidr";
|
---|
493 | $sth = $dbh->prepare("update poolips set custid='6750400',available='y',".
|
---|
494 | "city=(select city from allocations where cidr >>= '$cidr'),".
|
---|
495 | "description='',notes='',circuitid='' where ip='$cidr'");
|
---|
496 | $sth->execute;
|
---|
497 | $dbh->commit;
|
---|
498 | };
|
---|
499 | if ($@) {
|
---|
500 | eval { $dbh->rollback; };
|
---|
501 | return ('FAIL',$msg);
|
---|
502 | } else {
|
---|
503 | return ('OK',"OK");
|
---|
504 | }
|
---|
505 |
|
---|
506 | } elsif ($type eq 'mm') { # end alloctype =~ /.i/
|
---|
507 |
|
---|
508 | $msg = "Unable to delete master block $cidr";
|
---|
509 | eval {
|
---|
510 | $sth = $dbh->prepare("delete from masterblocks where cidr='$cidr'");
|
---|
511 | $sth->execute;
|
---|
512 | $sth = $dbh->prepare("delete from freeblocks where cidr='$cidr'");
|
---|
513 | $sth->execute;
|
---|
514 | $dbh->commit;
|
---|
515 | };
|
---|
516 | if ($@) {
|
---|
517 | eval { $dbh->rollback; };
|
---|
518 | return ('FAIL', $msg);
|
---|
519 | } else {
|
---|
520 | return ('OK',"OK");
|
---|
521 | }
|
---|
522 |
|
---|
523 | } else { # end alloctype master block case
|
---|
524 |
|
---|
525 | ## This is a big block; but it HAS to be done in a chunk. Any removal
|
---|
526 | ## of a netblock allocation may result in a larger chunk of free
|
---|
527 | ## contiguous IP space - which may in turn be combined into a single
|
---|
528 | ## netblock rather than a number of smaller netblocks.
|
---|
529 |
|
---|
530 | eval {
|
---|
531 |
|
---|
532 | if ($type eq 'rm') {
|
---|
533 | $msg = "Unable to remove routing allocation $cidr";
|
---|
534 | $sth = $dbh->prepare("delete from routed where cidr='$cidr'");
|
---|
535 | $sth->execute;
|
---|
536 | # Make sure block getting deleted is properly accounted for.
|
---|
537 | $sth = $dbh->prepare("update freeblocks set routed='n',city='<NULL>'".
|
---|
538 | " where cidr='$cidr'");
|
---|
539 | $sth->execute;
|
---|
540 | # Set up query to start compacting free blocks.
|
---|
541 | $sth = $dbh->prepare("select cidr from freeblocks where ".
|
---|
542 | "maskbits<=".$cidr->masklen." and routed='n' order by maskbits desc");
|
---|
543 |
|
---|
544 | } else { # end alloctype routing case
|
---|
545 |
|
---|
546 | # Magic. We need to get information about the containing block (if any)
|
---|
547 | # so as to make sure that the freeblocks we insert get the correct "type".
|
---|
548 | $sth = $dbh->prepare("select cidr,type from allocations where cidr >> '$cidr'");
|
---|
549 | $sth->execute;
|
---|
550 | ($container, $con_type) = $sth->fetchrow_array;
|
---|
551 |
|
---|
552 | # Delete all allocations within the block being deleted. This is
|
---|
553 | # deliberate and correct, and removes the need to special-case
|
---|
554 | # removal of "container" blocks.
|
---|
555 | $sth = $dbh->prepare("delete from allocations where cidr <<='$cidr'");
|
---|
556 | $sth->execute;
|
---|
557 |
|
---|
558 | # Special case - delete pool IPs
|
---|
559 | if ($type =~ /^.[pd]$/) {
|
---|
560 | # We have to delete the IPs from the pool listing.
|
---|
561 | $sth = $dbh->prepare("delete from poolips where pool='$cidr'");
|
---|
562 | $sth->execute;
|
---|
563 | }
|
---|
564 |
|
---|
565 | # Set up query for compacting free blocks.
|
---|
566 | if ($con_type && $con_type eq 'pc') {
|
---|
567 | # Clean up after "bad" allocations (blocks that are not formally
|
---|
568 | # contained which have nevertheless been allocated from a container block)
|
---|
569 | # We want to make certain that the freeblocks are properly "labelled"
|
---|
570 | $sth = $dbh->prepare("select cidr from freeblocks where cidr <<= '$container'");
|
---|
571 | } else {
|
---|
572 | # Standard deallocation.
|
---|
573 | $sth = $dbh->prepare("select cidr from freeblocks where cidr <<= ".
|
---|
574 | "(select cidr from routed where cidr >>= '$cidr') ".
|
---|
575 | " and maskbits<=".$cidr->masklen.
|
---|
576 | " and routed='".(($type =~ /^(.)r$/) ? "$1" : 'y').
|
---|
577 | "' order by maskbits desc");
|
---|
578 | }
|
---|
579 |
|
---|
580 | } # end alloctype general case
|
---|
581 |
|
---|
582 | ##TEMP
|
---|
583 | ## Temporary wrapper to "properly" deallocate sIP PPPoE/DSL "netblocks" in 209.91.185.0/24
|
---|
584 | ## Note that we should really general-case this.
|
---|
585 | my $staticpool = new NetAddr::IP "209.91.185.0/24";
|
---|
586 | ##TEMP
|
---|
587 | if ($cidr->within($staticpool)) {
|
---|
588 | ##TEMP
|
---|
589 | # We've already deleted the block, now we have to stuff its IPs into the pool.
|
---|
590 | my $sth2 = $dbh->prepare("insert into poolips values ('209.91.185.0/24',?,'6750400','Sudbury','di','y','','','')");
|
---|
591 | $sth2->execute($cidr->addr);
|
---|
592 | foreach my $ip ($cidr->hostenum) {
|
---|
593 | $sth2->execute("$ip");
|
---|
594 | }
|
---|
595 | $cidr--;
|
---|
596 | $sth2->execute($cidr->addr);
|
---|
597 |
|
---|
598 | ##TEMP
|
---|
599 | } else {
|
---|
600 | ##TEMP
|
---|
601 |
|
---|
602 | # Now we look for larger-or-equal-sized free blocks in the same master (routed)
|
---|
603 | # (super)block. If there aren't any, we can't combine blocks anyway. If there
|
---|
604 | # are, we check to see if we can combine blocks.
|
---|
605 | # Execute the statement prepared in the if-else above.
|
---|
606 |
|
---|
607 | $sth->execute;
|
---|
608 |
|
---|
609 | # NetAddr::IP->compact() attempts to produce the smallest inclusive block
|
---|
610 | # from the caller and the passed terms.
|
---|
611 | # EG: if you call $cidr->compact($ip1,$ip2,$ip3) when $cidr, $ip1, $ip2,
|
---|
612 | # and $ip3 are consecutive /27's starting on .0 (.0-.31, .32-.63,
|
---|
613 | # .64-.95, and .96-.128), you will get an array containing a single
|
---|
614 | # /25 as element 0 (.0-.127). Order is not important; you could have
|
---|
615 | # $cidr=.32/27, $ip1=.96/27, $ip2=.0/27, and $ip3=.64/27.
|
---|
616 |
|
---|
617 | my (@together, @combinelist);
|
---|
618 | my $i=0;
|
---|
619 | while (my @data = $sth->fetchrow_array) {
|
---|
620 | my $testIP = new NetAddr::IP $data[0];
|
---|
621 | @together = $testIP->compact($cidr);
|
---|
622 | my $num = @together;
|
---|
623 | if ($num == 1) {
|
---|
624 | $cidr = $together[0];
|
---|
625 | $combinelist[$i++] = $testIP;
|
---|
626 | }
|
---|
627 | }
|
---|
628 |
|
---|
629 | # Clear old freeblocks entries - if any. They should all be within
|
---|
630 | # the $cidr determined above.
|
---|
631 | $sth = $dbh->prepare("delete from freeblocks where cidr <<='$cidr'");
|
---|
632 | $sth->execute;
|
---|
633 |
|
---|
634 | # insert "new" freeblocks entry
|
---|
635 | if ($type eq 'rm') {
|
---|
636 | $sth = $dbh->prepare("insert into freeblocks (cidr,maskbits,city)".
|
---|
637 | " values ('$cidr',".$cidr->masklen.",'<NULL>')");
|
---|
638 | } else {
|
---|
639 | # Magic hackery to insert "correct" data for deallocation of
|
---|
640 | # non-contained blocks allocated from within a container.
|
---|
641 | $type = 'pr' if $con_type && $con_type eq 'pc';
|
---|
642 |
|
---|
643 | $sth = $dbh->prepare("insert into freeblocks (cidr,maskbits,city,routed)".
|
---|
644 | " values ('$cidr',".$cidr->masklen.
|
---|
645 | ",(select city from routed where cidr >>= '$cidr'),'".
|
---|
646 | (($type =~ /^(.)r$/) ? "$1" : 'y')."')");
|
---|
647 | }
|
---|
648 | $sth->execute;
|
---|
649 |
|
---|
650 | ##TEMP
|
---|
651 | }
|
---|
652 | ##TEMP
|
---|
653 |
|
---|
654 | # If we got here, we've succeeded. Whew!
|
---|
655 | $dbh->commit;
|
---|
656 | }; # end eval
|
---|
657 | if ($@) {
|
---|
658 | eval { $dbh->rollback; };
|
---|
659 | return ('FAIL', $msg);
|
---|
660 | } else {
|
---|
661 | return ('OK',"OK");
|
---|
662 | }
|
---|
663 |
|
---|
664 | } # end alloctype != netblock
|
---|
665 |
|
---|
666 | } # end deleteBlock()
|
---|
667 |
|
---|
668 |
|
---|
669 | ## IPDB::mailNotify()
|
---|
670 | # Sends notification mail to recipients regarding an IPDB operation
|
---|
671 | sub mailNotify ($$$) {
|
---|
672 | my ($recip,$subj,$message) = @_;
|
---|
673 | my $mailer = Net::SMTP->new("smtp.example.com", Hello => "ipdb.example.com");
|
---|
674 |
|
---|
675 | $mailer->mail('ipdb@example.com');
|
---|
676 | $mailer->to($recip);
|
---|
677 | $mailer->data("From: \"IP Database\" <ipdb\@example.com>\n",
|
---|
678 | "To: $recip\n",
|
---|
679 | "Date: ".strftime("%a, %d %b %Y %H:%M:%S %z",localtime)."\n",
|
---|
680 | "Subject: {IPDB} $subj\n",
|
---|
681 | "X-Mailer: IPDB Notify v".sprintf("%.1d",$IPDB::VERSION)."\n",
|
---|
682 | "Organization: Example Corp\n",
|
---|
683 | "\n$message\n");
|
---|
684 | $mailer->quit;
|
---|
685 | }
|
---|
686 |
|
---|
687 | # Indicates module loaded OK. Required by Perl.
|
---|
688 | 1;
|
---|