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source: branches/stable/cgi-bin/IPDB.pm@ 308

Last change on this file since 308 was 304, checked in by Kris Deugau, 19 years ago

/branches/stable

Bugfix for mangled deallocation of contained blocks - block would
just be changed to a freeblock, rather than (possibly) getting
compacted with other freeblocks from the same container.
Ah, quoting bugs.

Property svn:keywords set to Date Rev Author

File size: 21.0 KB

Rev	Line
[8]	1	# ipdb/cgi-bin/IPDB.pm
[71]	2	# Contains functions for IPDB - database access, subnet mangling, block allocation, etc
[8]	3	###
	4	# SVN revision info
	5	# $Date: 2006-01-19 16:57:37 +0000 (Thu, 19 Jan 2006) $
	6	# SVN revision $Rev: 304 $
	7	# Last update by $Author: kdeugau $
	8	###
[158]	9	# Copyright (C) 2004,2005 - Kris Deugau
[8]	10
[4]	11	package IPDB;
	12
	13	use strict;
	14	use warnings;
	15	use Exporter;
[125]	16	use DBI;
[71]	17	use Net::SMTP;
	18	use POSIX;
[4]	19	use vars qw($VERSION @ISA @EXPORT @EXPORT_OK %EXPORT_TAGS);
	20
[125]	21	$VERSION = 2.0;
[4]	22	@ISA = qw(Exporter);
[125]	23	@EXPORT_OK = qw(
[168]	24	%disp_alloctypes %list_alloctypes %def_custids @citylist @poplist @masterblocks
[242]	25	%allocated %free %routed %bigfree %IPDBacl
[125]	26	&initIPDBGlobals &connectDB &finish &checkDBSanity &allocateBlock &deleteBlock
	27	&mailNotify
	28	);
[4]	29
	30	@EXPORT = (); # Export nothing by default.
[125]	31	%EXPORT_TAGS = ( ALL => [qw(
[168]	32	%disp_alloctypes %list_alloctypes %def_custids @citylist @poplist
[242]	33	@masterblocks %allocated %free %routed %bigfree %IPDBacl
[125]	34	&initIPDBGlobals &connectDB &finish &checkDBSanity &allocateBlock
	35	&deleteBlock &mailNotify
	36	)]
	37	);
[4]	38
[125]	39	##
	40	## Global variables
	41	##
	42	our %disp_alloctypes;
	43	our %list_alloctypes;
[168]	44	our %def_custids;
[125]	45	our @citylist;
	46	our @poplist;
	47	our @masterblocks;
	48	our %allocated;
	49	our %free;
	50	our %routed;
	51	our %bigfree;
[242]	52	our %IPDBacl;
[71]	53
[125]	54	# Let's initialize the globals.
	55	## IPDB::initIPDBGlobals()
	56	# Initialize all globals. Takes a database handle, returns a success or error code
	57	sub initIPDBGlobals {
	58	my $dbh = $_[0];
	59	my $sth;
	60
	61	# Initialize alloctypes hashes
[168]	62	$sth = $dbh->prepare("select type,listname,dispname,listorder,def_custid from alloctypes order by listorder");
[125]	63	$sth->execute;
	64	while (my @data = $sth->fetchrow_array) {
	65	$disp_alloctypes{$data[0]} = $data[2];
[168]	66	$def_custids{$data[0]} = $data[4];
[125]	67	if ($data[3] < 900) {
	68	$list_alloctypes{$data[0]} = $data[1];
	69	}
	70	}
	71
	72	# City and POP listings
[159]	73	$sth = $dbh->prepare("select city,routing from cities order by city");
[125]	74	$sth->execute;
	75	return (undef,$sth->errstr) if $sth->err;
	76	while (my @data = $sth->fetchrow_array) {
	77	push @citylist, $data[0];
	78	if ($data[1] eq 'y') {
	79	push @poplist, $data[0];
	80	}
	81	}
	82
	83	# Master block list
[159]	84	$sth = $dbh->prepare("select cidr from masterblocks order by cidr");
[125]	85	$sth->execute;
[242]	86	return (undef,$sth->errstr) if $sth->err;
[125]	87	for (my $i=0; my @data = $sth->fetchrow_array(); $i++) {
	88	$masterblocks[$i] = new NetAddr::IP $data[0];
	89	$allocated{"$masterblocks[$i]"} = 0;
	90	$free{"$masterblocks[$i]"} = 0;
	91	$bigfree{"$masterblocks[$i]"} = 128; # Larger number means smaller block.
	92	# Set to 128 to prepare for IPv6
	93	$routed{"$masterblocks[$i]"} = 0;
	94	}
[242]	95
	96	# Load ACL data. Specific username checks are done at a different level.
	97	$sth = $dbh->prepare("select username,acl from users");
	98	$sth->execute;
[125]	99	return (undef,$sth->errstr) if $sth->err;
[242]	100	while (my @data = $sth->fetchrow_array) {
	101	$IPDBacl{$data[0]} = $data[1];
	102	}
[125]	103
	104	return (1,"OK");
	105	} # end initIPDBGlobals
	106
	107
	108	## IPDB::connectDB()
[4]	109	# Creates connection to IPDB.
[125]	110	# Requires the database name, username, and password.
[4]	111	# Returns a handle to the db.
[125]	112	# Set up for a PostgreSQL db; could be any transactional DBMS with the
	113	# right changes.
	114	# This definition should be sub connectDB($$$) to be technically correct,
	115	# but this breaks. GRR.
[4]	116	sub connectDB {
[125]	117	my ($dbname,$user,$pass) = @_;
[4]	118	my $dbh;
[125]	119	my $DSN = "DBI:Pg:dbname=$dbname";
	120	# my $user = 'ipdb';
	121	# my $pw = 'ipdbpwd';
[4]	122
	123	# Note that we want to autocommit by default, and we will turn it off locally as necessary.
[125]	124	# We may not want to print gobbledygook errors; YMMV. Have to ponder that further.
	125	$dbh = DBI->connect($DSN, $user, $pass, {
	126	AutoCommit => 1,
	127	PrintError => 0
	128	})
	129	or return (undef, $DBI::errstr) if(!$dbh);
[4]	130
[125]	131	# Return here if we can't select. Note that this indicates a
	132	# problem executing the select.
[185]	133	my $sth = $dbh->prepare("select type from alloctypes");
[125]	134	$sth->execute();
	135	return (undef,$DBI::errstr) if ($sth->err);
	136
	137	# See if the select returned anything (or null data). This should
	138	# succeed if the select executed, but...
	139	$sth->fetchrow();
	140	return (undef,$DBI::errstr) if ($sth->err);
	141
	142	# If we get here, we should be OK.
	143	return ($dbh,"DB connection OK");
[4]	144	} # end connectDB
	145
[125]	146
	147	## IPDB::finish()
	148	# Cleans up after database handles and so on.
	149	# Requires a database handle
	150	sub finish {
	151	my $dbh = $_[0];
	152	$dbh->disconnect;
	153	} # end finish
	154
	155
	156	## IPDB::checkDBSanity()
[4]	157	# Quick check to see if the db is responding. A full integrity
	158	# check will have to be a separate tool to walk the IP allocation trees.
	159	sub checkDBSanity {
[125]	160	my ($dbh) = $_[0];
[4]	161
	162	if (!$dbh) {
[125]	163	print "No database handle, or connection has been closed.";
	164	return -1;
[4]	165	} else {
	166	# it connects, try a stmt.
[185]	167	my $sth = $dbh->prepare("select type from alloctypes");
[4]	168	my $err = $sth->execute();
	169
	170	if ($sth->fetchrow()) {
	171	# all is well.
	172	return 1;
	173	} else {
[16]	174	print "Connected to the database, but could not execute test statement. ".$sth->errstr();
[125]	175	return -1;
[4]	176	}
	177	}
	178	# Clean up after ourselves.
[125]	179	# $dbh->disconnect;
[4]	180	} # end checkDBSanity
	181
[71]	182
[125]	183	## IPDB::allocateBlock()
[71]	184	# Does all of the magic of actually allocating a netblock
[125]	185	# Requires database handle, block to allocate, custid, type, city,
[286]	186	# description, notes, circuit ID, block to allocate from, private data
[125]	187	# Returns a success code and optional error message.
	188	sub allocateBlock {
[286]	189	my ($dbh,undef,undef,$custid,$type,$city,$desc,$notes,$circid,$privdata) = @_;
	190
[125]	191	my $cidr = new NetAddr::IP $_[1];
	192	my $alloc_from = new NetAddr::IP $_[2];
	193	my $sth;
[71]	194
[125]	195	# To contain the error message, if any.
	196	my $msg = "Unknown error allocating $cidr as '$type'";
[71]	197
[125]	198	# Enable transactions and error handling
	199	local $dbh->{AutoCommit} = 0; # These need to be local so we don't
	200	local $dbh->{RaiseError} = 1; # step on our toes by accident.
	201
[159]	202	if ($type =~ /^.i$/) {
[125]	203	$msg = "Unable to assign static IP $cidr to $custid";
	204	eval {
[159]	205	# We have to do this in two parts because otherwise we lose
	206	# the ability to return the IP assigned. Should that change,
	207	# the commented SQL statement below may become usable.
[125]	208	# update poolips set custid='$custid',city='$city',available='n',
	209	# description='$desc',notes='$notes',circuitid='$circid'
	210	# where ip=(select ip from poolips where pool='$alloc_from'
	211	# and available='y' order by ip limit 1);
[159]	212
	213	$sth = $dbh->prepare("select ip from poolips where pool='$alloc_from'".
	214	" and available='y' order by ip");
	215	$sth->execute;
	216
[125]	217	my @data = $sth->fetchrow_array;
[159]	218	$cidr = $data[0]; # $cidr is already declared when we get here!
[125]	219
	220	$sth = $dbh->prepare("update poolips set custid='$custid',".
	221	"city='$city',available='n',description='$desc',notes='$notes',".
[286]	222	"circuitid='$circid',privdata='$privdata'".
[125]	223	" where ip='$cidr'");
	224	$sth->execute;
	225	$dbh->commit;
	226	};
	227	if ($@) {
	228	$msg .= ": '".$sth->errstr."'";
	229	eval { $dbh->rollback; };
	230	return ('FAIL',$msg);
	231	} else {
	232	return ('OK',"$cidr");
	233	}
	234
	235	} else { # end IP-from-pool allocation
	236
	237	if ($cidr == $alloc_from) {
	238	# Easiest case- insert in one table, delete in the other, and go home. More or less.
	239	# insert into allocations values (cidr,custid,type,city,desc) and
	240	# delete from freeblocks where cidr='cidr'
	241	# For data safety on non-transaction DBs, we delete first.
	242
	243	eval {
	244	$msg = "Unable to allocate $cidr as '$disp_alloctypes{$type}'";
[192]	245	if ($type eq 'rm') {
[125]	246	$sth = $dbh->prepare("update freeblocks set routed='y',city='$city'".
	247	" where cidr='$cidr'");
	248	$sth->execute;
[159]	249	$sth = $dbh->prepare("insert into routed (cidr,maskbits,city)".
	250	" values ('$cidr',".$cidr->masklen.",'$city')");
[125]	251	$sth->execute;
	252	} else {
	253	# common stuff for end-use, dialup, dynDSL, pools, etc, etc.
	254
[192]	255	# special case - block is a container/"reserve" block
	256	if ($type =~ /^(.)c$/) {
	257	$sth = $dbh->prepare("update freeblocks set routed='$1' where cidr='$cidr'");
	258	$sth->execute;
	259	} else {
	260	# "normal" case
	261	$sth = $dbh->prepare("delete from freeblocks where cidr='$cidr'");
	262	$sth->execute;
	263	}
[159]	264	$sth = $dbh->prepare("insert into allocations".
[286]	265	" (cidr,custid,type,city,description,notes,maskbits,circuitid,privdata)".
[159]	266	" values ('$cidr','$custid','$type','$city','$desc','$notes',".
[286]	267	$cidr->masklen.",'$circid','$privdata')");
[125]	268	$sth->execute;
	269
	270	# And initialize the pool, if necessary
[159]	271	# PPPoE pools (currently dialup, DSL, and WiFi) get all IPs made available
	272	# "DHCP" or "real-subnet" pools have the net, gw, and bcast IPs removed.
[125]	273	if ($type =~ /^.p$/) {
[159]	274	$msg = "Could not initialize IPs in new $disp_alloctypes{$type} $cidr";
	275	my ($code,$rmsg) = initPool($dbh,$cidr,$type,$city,"all");
	276	die $rmsg if $code eq 'FAIL';
	277	} elsif ($type =~ /^.d$/) {
	278	$msg = "Could not initialize IPs in new $disp_alloctypes{$type} $cidr";
	279	my ($code,$rmsg) = initPool($dbh,$cidr,$type,$city,"normal");
	280	die $rmsg if $code eq 'FAIL';
[125]	281	}
	282
	283	} # routing vs non-routing netblock
	284
	285	$dbh->commit;
	286	}; # end of eval
	287	if ($@) {
[159]	288	$msg .= ": ".$@;
[125]	289	eval { $dbh->rollback; };
[159]	290	return ('FAIL',$msg);
[125]	291	} else {
	292	return ('OK',"OK");
	293	}
	294
	295	} else { # cidr != alloc_from
	296
	297	# Hard case. Allocation is smaller than free block.
	298	my $wantmaskbits = $cidr->masklen;
	299	my $maskbits = $alloc_from->masklen;
	300
	301	my @newfreeblocks; # Holds free blocks generated from splitting the source freeblock.
	302
	303	# This determines which blocks will be left "free" after allocation. We take the
	304	# block we're allocating from, and split it in half. We see which half the wanted
	305	# block is in, and repeat until the wanted block is equal to one of the halves.
	306	my $i=0;
	307	my $tmp_from = $alloc_from; # So we don't munge $alloc_from
	308	while ($maskbits++ < $wantmaskbits) {
	309	my @subblocks = $tmp_from->split($maskbits);
	310	$newfreeblocks[$i++] = (($cidr->within($subblocks[0])) ? $subblocks[1] : $subblocks[0]);
	311	$tmp_from = ( ($cidr->within($subblocks[0])) ? $subblocks[0] : $subblocks[1] );
	312	} # while
	313
	314	# Begin SQL transaction block
	315	eval {
	316	$msg = "Unable to allocate $cidr as '$disp_alloctypes{$type}'";
	317
	318	# Delete old freeblocks entry
	319	$sth = $dbh->prepare("delete from freeblocks where cidr='$alloc_from'");
	320	$sth->execute();
	321
	322	# now we have to do some magic for routing blocks
[192]	323	if ($type eq 'rm') {
[125]	324
	325	# Insert the new freeblocks entries
	326	# Note that non-routed blocks are assigned to <NULL>
[159]	327	# and use the default value for the routed column ('n')
	328	$sth = $dbh->prepare("insert into freeblocks (cidr,maskbits,city)".
	329	" values (?, ?, '<NULL>')");
[125]	330	foreach my $block (@newfreeblocks) {
	331	$sth->execute("$block", $block->masklen);
	332	}
	333
	334	# Insert the entry in the routed table
[159]	335	$sth = $dbh->prepare("insert into routed (cidr,maskbits,city)".
	336	" values ('$cidr',".$cidr->masklen.",'$city')");
[125]	337	$sth->execute;
	338	# Insert the (almost) same entry in the freeblocks table
[159]	339	$sth = $dbh->prepare("insert into freeblocks (cidr,maskbits,city,routed)".
	340	" values ('$cidr',".$cidr->masklen.",'$city','y')");
[125]	341	$sth->execute;
	342
[192]	343	} else { # done with alloctype == rm
[125]	344
	345	# Insert the new freeblocks entries
[192]	346	# Along with some more HairyPerl(TM) in case we're inserting a
	347	# subblock (.r) allocation
[159]	348	$sth = $dbh->prepare("insert into freeblocks (cidr,maskbits,city,routed)".
[192]	349	" values (?, ?, (select city from routed where cidr >>= '$cidr'),'".
	350	(($type =~ /^(.)r$/) ? "$1" : 'y')."')");
[125]	351	foreach my $block (@newfreeblocks) {
	352	$sth->execute("$block", $block->masklen);
	353	}
[192]	354	# Special-case for reserve/"container" blocks - generate
	355	# the "extra" freeblocks entry for the container
	356	if ($type =~ /^(.)c$/) {
	357	$sth = $dbh->prepare("insert into freeblocks (cidr,maskbits,city,routed)".
	358	" values ('$cidr',".$cidr->masklen.",'$city','$1')");
	359	$sth->execute;
	360	}
[125]	361	# Insert the allocations entry
[159]	362	$sth = $dbh->prepare("insert into allocations (cidr,custid,type,city,".
[286]	363	"description,notes,maskbits,circuitid,privdata)".
[159]	364	" values ('$cidr','$custid','$type','$city','$desc','$notes',".
[286]	365	$cidr->masklen.",'$circid','$privdata')");
[125]	366	$sth->execute;
	367
	368	# And initialize the pool, if necessary
[159]	369	# PPPoE pools (currently dialup, DSL, and WiFi) get all IPs made available
	370	# "DHCP" or "real-subnet" pools have the net, gw, and bcast IPs removed.
[125]	371	if ($type =~ /^.p$/) {
	372	$msg = "Could not initialize IPs in new $disp_alloctypes{$type} $cidr";
[159]	373	my ($code,$rmsg) = initPool($dbh,$cidr,$type,$city,"all");
	374	die $rmsg if $code eq 'FAIL';
	375	} elsif ($type =~ /^.d$/) {
	376	$msg = "Could not initialize IPs in new $disp_alloctypes{$type} $cidr";
	377	my ($code,$rmsg) = initPool($dbh,$cidr,$type,$city,"normal");
	378	die $rmsg if $code eq 'FAIL';
[125]	379	}
	380
[192]	381	} # done with netblock alloctype != rm
[125]	382
	383	$dbh->commit;
	384	}; # end eval
	385	if ($@) {
[250]	386	$msg .= ": ".$@;
[125]	387	eval { $dbh->rollback; };
	388	return ('FAIL',$msg);
	389	} else {
	390	return ('OK',"OK");
	391	}
	392
	393	} # end fullcidr != alloc_from
	394
	395	} # end static-IP vs netblock allocation
	396
	397	} # end allocateBlock()
	398
	399
	400	## IPDB::initPool()
	401	# Initializes a pool
	402	# Requires a database handle, the pool CIDR, type, city, and a parameter
	403	# indicating whether the pool should allow allocation of literally every
	404	# IP, or if it should reserve network/gateway/broadcast IPs
	405	# Note that this is NOT done in a transaction, that's why it's a private
	406	# function and should ONLY EVER get called from allocateBlock()
	407	sub initPool {
	408	my ($dbh,undef,$type,$city,$class) = @_;
	409	my $pool = new NetAddr::IP $_[1];
	410
[159]	411	##fixme Need to just replace 2nd char of type with i rather than capturing 1st char of type
	412	$type =~ s/[pd]$/i/;
[125]	413	my $sth;
[159]	414	my $msg;
[125]	415
[159]	416	# Trap errors so we can pass them back to the caller. Even if the
	417	# caller is only ever supposed to be local, and therefore already
	418	# trapping errors. >:(
	419	local $dbh->{AutoCommit} = 0; # These need to be local so we don't
	420	local $dbh->{RaiseError} = 1; # step on our toes by accident.
	421
	422	eval {
	423	# have to insert all pool IPs into poolips table as "unallocated".
	424	$sth = $dbh->prepare("insert into poolips (pool,ip,custid,city,type)".
	425	" values ('$pool', ?, '6750400', '$city', '$type')");
	426	my @poolip_list = $pool->hostenum;
	427	if ($class eq 'all') { # (DSL-ish block - all IPs available
[248]	428	if ($pool->addr !~ /\.0$/) { # .0 causes weirdness.
	429	$sth->execute($pool->addr);
	430	}
[159]	431	for (my $i=0; $i<=$#poolip_list; $i++) {
	432	$sth->execute($poolip_list[$i]->addr);
	433	}
	434	$pool--;
[248]	435	if ($pool->addr !~ /\.255$/) { # .255 can cause weirdness.
	436	$sth->execute($pool->addr);
	437	}
[159]	438	} else { # (real netblock)
	439	for (my $i=1; $i<=$#poolip_list; $i++) {
	440	$sth->execute($poolip_list[$i]->addr);
	441	}
[125]	442	}
[159]	443	};
	444	if ($@) {
	445	$msg = "'".$sth->errstr."'";
	446	eval { $dbh->rollback; };
	447	return ('FAIL',$msg);
	448	} else {
	449	return ('OK',"OK");
[125]	450	}
	451	} # end initPool()
	452
	453
	454	## IPDB::deleteBlock()
	455	# Removes an allocation from the database, including deleting IPs
	456	# from poolips and recombining entries in freeblocks if possible
	457	# Also handles "deleting" a static IP allocation, and removal of a master
	458	# Requires a database handle, the block to delete, and the type of block
	459	sub deleteBlock {
	460	my ($dbh,undef,$type) = @_;
	461	my $cidr = new NetAddr::IP $_[1];
	462
	463	my $sth;
	464
	465	# To contain the error message, if any.
	466	my $msg = "Unknown error deallocating $type $cidr";
	467	# Enable transactions and exception-on-errors... but only for this sub
	468	local $dbh->{AutoCommit} = 0;
	469	local $dbh->{RaiseError} = 1;
	470
	471	# First case. The "block" is a static IP
	472	# Note that we still need some additional code in the odd case
	473	# of a netblock-aligned contiguous group of static IPs
	474	if ($type =~ /^.i$/) {
	475
	476	eval {
[159]	477	$msg = "Unable to deallocate $disp_alloctypes{$type} $cidr";
[125]	478	$sth = $dbh->prepare("update poolips set custid='6750400',available='y',".
	479	"city=(select city from allocations where cidr >>= '$cidr'),".
	480	"description='',notes='',circuitid='' where ip='$cidr'");
	481	$sth->execute;
	482	$dbh->commit;
	483	};
	484	if ($@) {
	485	eval { $dbh->rollback; };
	486	return ('FAIL',$msg);
	487	} else {
	488	return ('OK',"OK");
	489	}
	490
	491	} elsif ($type eq 'mm') { # end alloctype =~ /.i/
	492
	493	$msg = "Unable to delete master block $cidr";
	494	eval {
	495	$sth = $dbh->prepare("delete from masterblocks where cidr='$cidr'");
	496	$sth->execute;
	497	$sth = $dbh->prepare("delete from freeblocks where cidr='$cidr'");
	498	$sth->execute;
	499	$dbh->commit;
	500	};
	501	if ($@) {
	502	eval { $dbh->rollback; };
	503	return ('FAIL', $msg);
	504	} else {
	505	return ('OK',"OK");
	506	}
	507
	508	} else { # end alloctype master block case
	509
	510	## This is a big block; but it HAS to be done in a chunk. Any removal
	511	## of a netblock allocation may result in a larger chunk of free
	512	## contiguous IP space - which may in turn be combined into a single
	513	## netblock rather than a number of smaller netblocks.
	514
	515	eval {
	516
[192]	517	if ($type eq 'rm') {
[125]	518	$msg = "Unable to remove routing allocation $cidr";
	519	$sth = $dbh->prepare("delete from routed where cidr='$cidr'");
	520	$sth->execute;
	521	# Make sure block getting deleted is properly accounted for.
	522	$sth = $dbh->prepare("update freeblocks set routed='n',city='<NULL>'".
	523	" where cidr='$cidr'");
	524	$sth->execute;
	525	# Set up query to start compacting free blocks.
[159]	526	$sth = $dbh->prepare("select cidr from freeblocks where ".
[125]	527	"maskbits<=".$cidr->masklen." and routed='n' order by maskbits desc");
	528
	529	} else { # end alloctype routing case
	530
[192]	531	# Delete all allocations within the block being deleted. This is
	532	# deliberate and correct, and removes the need to special-case
	533	# removal of "container" blocks.
	534	$sth = $dbh->prepare("delete from allocations where cidr <<='$cidr'");
[125]	535	$sth->execute;
[192]	536
[125]	537	# Special case - delete pool IPs
[159]	538	if ($type =~ /^.[pd]$/) {
[125]	539	# We have to delete the IPs from the pool listing.
	540	$sth = $dbh->prepare("delete from poolips where pool='$cidr'");
	541	$sth->execute;
	542	}
	543
	544	# Set up query for compacting free blocks.
[159]	545	$sth = $dbh->prepare("select cidr from freeblocks where cidr <<= ".
[125]	546	"(select cidr from routed where cidr >>= '$cidr') ".
[192]	547	" and maskbits<=".$cidr->masklen.
[304]	548	" and routed='".(($type =~ /^(.)r$/) ? "$1" : 'y').
[192]	549	"' order by maskbits desc");
[125]	550
	551	} # end alloctype general case
	552
[126]	553	##TEMP
	554	## Temporary wrapper to "properly" deallocate sIP PPPoE/DSL "netblocks" in 209.91.185.0/24
	555	## Note that we should really general-case this.
	556	my $staticpool = new NetAddr::IP "209.91.185.0/24";
	557	##TEMP
	558	if ($cidr->within($staticpool)) {
	559	##TEMP
	560	# We've already deleted the block, now we have to stuff its IPs into the pool.
[287]	561	$sth = $dbh->prepare("insert into poolips values ('209.91.185.0/24',?,'6750400','Sudbury','di','y','','','')");
[126]	562	$sth->execute($cidr->addr);
	563	foreach my $ip ($cidr->hostenum) {
	564	$sth->execute("$ip");
	565	}
	566	$cidr--;
	567	$sth->execute($cidr->addr);
	568
	569	##TEMP
	570	} else {
	571	##TEMP
	572
[125]	573	# Now we look for larger-or-equal-sized free blocks in the same master (routed)
	574	# (super)block. If there aren't any, we can't combine blocks anyway. If there
	575	# are, we check to see if we can combine blocks.
	576	# Execute the statement prepared in the if-else above.
	577
	578	$sth->execute;
	579
	580	# NetAddr::IP->compact() attempts to produce the smallest inclusive block
	581	# from the caller and the passed terms.
	582	# EG: if you call $cidr->compact($ip1,$ip2,$ip3) when $cidr, $ip1, $ip2,
	583	# and $ip3 are consecutive /27's starting on .0 (.0-.31, .32-.63,
	584	# .64-.95, and .96-.128), you will get an array containing a single
	585	# /25 as element 0 (.0-.127). Order is not important; you could have
	586	# $cidr=.32/27, $ip1=.96/27, $ip2=.0/27, and $ip3=.64/27.
	587
	588	my (@together, @combinelist);
	589	my $i=0;
	590	while (my @data = $sth->fetchrow_array) {
	591	my $testIP = new NetAddr::IP $data[0];
	592	@together = $testIP->compact($cidr);
	593	my $num = @together;
	594	if ($num == 1) {
	595	$cidr = $together[0];
	596	$combinelist[$i++] = $testIP;
	597	}
	598	}
	599
[192]	600	# Clear old freeblocks entries - if any. They should all be within
	601	# the $cidr determined above.
	602	$sth = $dbh->prepare("delete from freeblocks where cidr <<='$cidr'");
	603	$sth->execute;
[125]	604
	605	# insert "new" freeblocks entry
[192]	606	if ($type eq 'rm') {
[159]	607	$sth = $dbh->prepare("insert into freeblocks (cidr,maskbits,city)".
	608	" values ('$cidr',".$cidr->masklen.",'<NULL>')");
[125]	609	} else {
[159]	610	$sth = $dbh->prepare("insert into freeblocks (cidr,maskbits,city,routed)".
	611	" values ('$cidr',".$cidr->masklen.
[192]	612	",(select city from routed where cidr >>= '$cidr'),'".
	613	(($type =~ /^(.)r$/) ? "$1" : 'y')."')");
[125]	614	}
	615	$sth->execute;
	616
[126]	617	##TEMP
	618	}
	619	##TEMP
	620
[125]	621	# If we got here, we've succeeded. Whew!
	622	$dbh->commit;
	623	}; # end eval
	624	if ($@) {
	625	eval { $dbh->rollback; };
	626	return ('FAIL', $msg);
	627	} else {
	628	return ('OK',"OK");
	629	}
	630
	631	} # end alloctype != netblock
	632
	633	} # end deleteBlock()
	634
	635
	636	## IPDB::mailNotify()
[71]	637	# Sends notification mail to recipients regarding an IPDB operation
	638	sub mailNotify ($$$) {
	639	my ($recip,$subj,$message) = @_;
	640	my $mailer = Net::SMTP->new("smtp.example.com", Hello => "ipdb.example.com");
	641
	642	$mailer->mail('ipdb@example.com');
	643	$mailer->to($recip);
	644	$mailer->data("From: \"IP Database\" <ipdb\@example.com>\n",
[131]	645	"To: $recip\n",
[71]	646	"Date: ".strftime("%a, %d %b %Y %H:%M:%S %z",localtime)."\n",
	647	"Subject: {IPDB} $subj\n",
	648	"X-Mailer: IPDB Notify v".sprintf("%.1d",$IPDB::VERSION)."\n",
	649	"Organization: Example Corp\n",
	650	"\n$message\n");
	651	$mailer->quit;
	652	}
	653
[4]	654	# Indicates module loaded OK. Required by Perl.
	655	1;

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