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ac1cfefa MT |
1 | # SmoothWall CGIs |
2 | # | |
3 | # This code is distributed under the terms of the GPL | |
4 | # | |
5 | # (c) The SmoothWall Team | |
6 | # Copyright (C) 2002 Alex Hudson - getcgihash() rewrite | |
7 | # Copyright (C) 2002 Bob Grant <bob@cache.ucr.edu> - validmac() | |
8 | # Copyright (c) 2002/04/13 Steve Bootes - add alias section, helper functions | |
9 | # Copyright (c) 2002/08/23 Mark Wormgoor <mark@wormgoor.com> validfqdn() | |
10 | # Copyright (c) 2003/09/11 Darren Critchley <darrenc@telus.net> srtarray() | |
11 | # | |
12 | # $Id: general-functions.pl,v 1.1.2.26 2006/01/04 16:33:55 franck78 Exp $ | |
13 | # | |
14 | ||
15 | package General; | |
16 | ||
17 | use strict; | |
18 | use Socket; | |
19 | use IO::Socket; | |
c545beb1 | 20 | use Net::SSLeay; |
8c877a82 | 21 | use Net::IPv4Addr qw(:all); |
ac1cfefa MT |
22 | $|=1; # line buffering |
23 | ||
24 | $General::version = 'VERSION'; | |
25 | $General::swroot = 'CONFIG_ROOT'; | |
26 | $General::noipprefix = 'noipg-'; | |
c545beb1 | 27 | $General::adminmanualurl = 'http://wiki.ipfire.org'; |
ac1cfefa | 28 | |
c545beb1 MT |
29 | # |
30 | # log ("message") use default 'ipcop' tag | |
31 | # log ("tag","message") use your tag | |
32 | # | |
ac1cfefa MT |
33 | sub log |
34 | { | |
c545beb1 MT |
35 | my $tag='ipfire'; |
36 | $tag = shift if (@_>1); | |
ac1cfefa MT |
37 | my $logmessage = $_[0]; |
38 | $logmessage =~ /([\w\W]*)/; | |
39 | $logmessage = $1; | |
77007ce5 | 40 | system('logger', '-t', $tag, $logmessage); |
ac1cfefa MT |
41 | } |
42 | ||
43 | sub readhash | |
44 | { | |
45 | my $filename = $_[0]; | |
46 | my $hash = $_[1]; | |
47 | my ($var, $val); | |
48 | ||
49 | ||
50 | # Some ipcop code expects that readhash 'complete' the hash if new entries | |
51 | # are presents. Not clear it !!! | |
52 | #%$hash = (); | |
53 | ||
54 | open(FILE, $filename) or die "Unable to read file $filename"; | |
55 | ||
56 | while (<FILE>) | |
57 | { | |
58 | chop; | |
59 | ($var, $val) = split /=/, $_, 2; | |
60 | if ($var) | |
61 | { | |
62 | $val =~ s/^\'//g; | |
63 | $val =~ s/\'$//g; | |
64 | ||
65 | # Untaint variables read from hash | |
77007ce5 MT |
66 | # trim space from begin and end |
67 | $var =~ s/^\s+//; | |
68 | $var =~ s/\s+$//; | |
69 | $var =~ /([A-Za-z0-9_-]*)/; | |
70 | $var = $1; | |
71 | $val =~ /([\w\W]*)/; | |
72 | $val = $1; | |
ac1cfefa MT |
73 | $hash->{$var} = $val; |
74 | } | |
75 | } | |
76 | close FILE; | |
77 | } | |
78 | ||
79 | ||
80 | sub writehash | |
81 | { | |
82 | my $filename = $_[0]; | |
83 | my $hash = $_[1]; | |
84 | my ($var, $val); | |
85 | ||
86 | # write cgi vars to the file. | |
87 | open(FILE, ">${filename}") or die "Unable to write file $filename"; | |
88 | flock FILE, 2; | |
89 | foreach $var (keys %$hash) | |
90 | { | |
ad60e3ea | 91 | if ( $var eq "__CGI__"){next;} |
ac1cfefa MT |
92 | $val = $hash->{$var}; |
93 | # Darren Critchley Jan 17, 2003 added the following because when submitting with a graphic, the x and y | |
94 | # location of the mouse are submitted as well, this was being written to the settings file causing | |
95 | # some serious grief! This skips the variable.x and variable.y | |
96 | if (!($var =~ /(.x|.y)$/)) { | |
97 | if ($val =~ / /) { | |
98 | $val = "\'$val\'"; } | |
99 | if (!($var =~ /^ACTION/)) { | |
100 | print FILE "${var}=${val}\n"; } | |
101 | } | |
102 | } | |
103 | close FILE; | |
104 | } | |
105 | ||
90c2e164 CS |
106 | sub writehashpart |
107 | { | |
108 | # This function replaces the given hash in the original hash by keeping the old | |
109 | # content and just replacing the new content | |
110 | ||
111 | my $filename = $_[0]; | |
112 | my $newhash = $_[1]; | |
113 | my %oldhash; | |
114 | my ($var, $val); | |
115 | ||
116 | readhash("${filename}", \%oldhash); | |
117 | ||
118 | foreach $var (keys %$newhash){ | |
119 | $oldhash{$var}=$newhash->{$var}; | |
120 | } | |
121 | ||
122 | # write cgi vars to the file. | |
123 | open(FILE, ">${filename}") or die "Unable to write file $filename"; | |
124 | flock FILE, 2; | |
125 | foreach $var (keys %oldhash) | |
126 | { | |
127 | if ( $var eq "__CGI__"){next;} | |
128 | $val = $oldhash{$var}; | |
129 | # Darren Critchley Jan 17, 2003 added the following because when submitting with a graphic, the x and y | |
130 | # location of the mouse are submitted as well, this was being written to the settings file causing | |
131 | # some serious grief! This skips the variable.x and variable.y | |
132 | if (!($var =~ /(.x|.y)$/)) { | |
133 | if ($val =~ / /) { | |
134 | $val = "\'$val\'"; } | |
135 | if (!($var =~ /^ACTION/)) { | |
136 | print FILE "${var}=${val}\n"; } | |
137 | } | |
138 | } | |
139 | close FILE; | |
140 | } | |
ac1cfefa MT |
141 | |
142 | sub age | |
143 | { | |
144 | my ($dev, $ino, $mode, $nlink, $uid, $gid, $rdev, $size, | |
145 | $atime, $mtime, $ctime, $blksize, $blocks) = stat $_[0]; | |
146 | my $now = time; | |
3687a2e2 JIW |
147 | my $timestring = ''; |
148 | my $dset = 0; # Day is set, when > 0 | |
149 | my $hset = 0; # Hour is set, when > 0 | |
150 | my $mset = 0; # Minute is set, when > 0 | |
ac1cfefa MT |
151 | |
152 | my $totalsecs = $now - $mtime; | |
153 | my $days = int($totalsecs / 86400); | |
154 | my $totalhours = int($totalsecs / 3600); | |
155 | my $hours = $totalhours % 24; | |
156 | my $totalmins = int($totalsecs / 60); | |
157 | my $mins = $totalmins % 60; | |
158 | my $secs = $totalsecs % 60; | |
159 | ||
3687a2e2 JIW |
160 | if ($days > 1) { |
161 | ${timestring} .= ${days}.' '.$Lang::tr{'days'}.', '; | |
162 | $dset = 1; | |
163 | } | |
164 | elsif ($days == 1) { | |
165 | ${timestring} .= ${days}.' '.$Lang::tr{'day'}.', '; | |
166 | $dset = 1; | |
167 | } | |
168 | ||
169 | if (($hours > 1) && !($dset)) { | |
170 | ${timestring} .= ${hours}.' '.$Lang::tr{'hours'}.', '; | |
171 | $hset = 1; | |
172 | } | |
173 | elsif (($hours == 1) && !($dset)) { | |
174 | ${timestring} .= ${hours}.' '.$Lang::tr{'hour'}.', '; | |
175 | $hset = 1; | |
176 | } | |
177 | elsif ($dset) { | |
178 | ${timestring} .= ${hours}.' '.$Lang::tr{'age shour'}.', '; | |
179 | $hset = 1; | |
180 | } | |
181 | ||
182 | if ((($mins > 1) || ($mins == 0)) && !($dset || $hset)) { | |
183 | ${timestring} .= ${mins}.' '.$Lang::tr{'minutes'}.', '; | |
184 | $mset = 1; | |
185 | } | |
186 | elsif (($mins == 1) && !($dset || $hset)) { | |
187 | ${timestring} .= ${mins}.' '.$Lang::tr{'minute'}.', '; | |
188 | $mset = 1; | |
189 | } | |
190 | else { | |
191 | ${timestring} .= ${mins}.' '.$Lang::tr{'age sminute'}.', '; | |
192 | $mset = 1; | |
193 | } | |
194 | ||
195 | if ((($secs > 1) || ($secs == 0)) && !($dset || $hset || $mset)) { | |
196 | ${timestring} .= ${secs}.' '.$Lang::tr{'age seconds'}; | |
197 | } | |
198 | elsif (($secs == 1) && !($dset || $hset || $mset)) { | |
199 | ${timestring} .= $secs.' '.$Lang::tr{'age second'}; | |
200 | } | |
201 | else { ${timestring} .= $secs.' '.$Lang::tr{'age ssecond'}; } | |
202 | ||
203 | return ${timestring}; | |
ac1cfefa MT |
204 | } |
205 | ||
206 | sub validip | |
207 | { | |
208 | my $ip = $_[0]; | |
209 | ||
210 | if (!($ip =~ /^(\d+)\.(\d+)\.(\d+)\.(\d+)$/)) { | |
211 | return 0; } | |
212 | else | |
213 | { | |
214 | my @octets = ($1, $2, $3, $4); | |
215 | foreach $_ (@octets) | |
216 | { | |
217 | if (/^0./) { | |
218 | return 0; } | |
219 | if ($_ < 0 || $_ > 255) { | |
220 | return 0; } | |
221 | } | |
222 | return 1; | |
223 | } | |
224 | } | |
225 | ||
226 | sub validmask | |
227 | { | |
228 | my $mask = $_[0]; | |
229 | ||
230 | # secord part an ip? | |
231 | if (&validip($mask)) { | |
232 | return 1; } | |
233 | # second part a number? | |
234 | if (/^0/) { | |
235 | return 0; } | |
236 | if (!($mask =~ /^\d+$/)) { | |
237 | return 0; } | |
238 | if ($mask >= 0 && $mask <= 32) { | |
239 | return 1; } | |
240 | return 0; | |
241 | } | |
242 | ||
243 | sub validipormask | |
244 | { | |
245 | my $ipormask = $_[0]; | |
246 | ||
247 | # see if it is a IP only. | |
248 | if (&validip($ipormask)) { | |
249 | return 1; } | |
250 | # split it into number and mask. | |
251 | if (!($ipormask =~ /^(.*?)\/(.*?)$/)) { | |
252 | return 0; } | |
253 | my $ip = $1; | |
254 | my $mask = $2; | |
255 | # first part not a ip? | |
256 | if (!(&validip($ip))) { | |
257 | return 0; } | |
258 | return &validmask($mask); | |
259 | } | |
260 | ||
8c877a82 | 261 | sub subtocidr |
ac1cfefa | 262 | { |
8c877a82 AM |
263 | #gets: Subnet in decimal (255.255.255.0) |
264 | #Gives: 24 (The cidr of network) | |
265 | my ($byte1, $byte2, $byte3, $byte4) = split(/\./, $_[0].".0.0.0.0"); | |
266 | my $num = ($byte1 * 16777216) + ($byte2 * 65536) + ($byte3 * 256) + $byte4; | |
267 | my $bin = unpack("B*", pack("N", $num)); | |
268 | my $count = ($bin =~ tr/1/1/); | |
269 | return $count; | |
270 | } | |
ac1cfefa | 271 | |
8c877a82 AM |
272 | sub cidrtosub |
273 | { | |
274 | #gets: Cidr of network (20-30 for ccd) | |
275 | #Konverts 30 to 255.255.255.252 e.g | |
276 | my $cidr=$_[0]; | |
277 | my $netmask = &Net::IPv4Addr::ipv4_cidr2msk($cidr); | |
278 | return "$netmask"; | |
279 | } | |
280 | ||
281 | sub iporsubtodec | |
282 | { | |
283 | #Gets: Ip address or subnetmask in decimal oder CIDR | |
284 | #Gives: What it gets only in CIDR format | |
285 | my $subnet=$_[0]; | |
286 | my $net; | |
287 | my $mask; | |
288 | my $full=0; | |
289 | if ($subnet =~ /^(.*?)\/(.*?)$/) { | |
290 | ($net,$mask) = split (/\//,$subnet); | |
291 | $full=1; | |
292 | return "$subnet"; | |
293 | }else{ | |
294 | $mask=$subnet; | |
295 | } | |
296 | #Subnet already in decimal and valid? | |
297 | if ($mask=~/^(\d{1,3})\.(\d{1,3})\.(\d{1,3})\.(\d{1,3})$/ &&(($1<=255 && $2<=$1 && $3<=$2 && $4<=$3 ))) { | |
298 | for (my $i=8;$i<=32;$i++){ | |
299 | if (&General::cidrtosub($i) eq $mask){ | |
300 | if ($full == 0){return $mask;}else{ | |
301 | return $net."/".$mask; | |
302 | } | |
303 | } | |
304 | } | |
305 | } | |
306 | #Subnet in binary format? | |
307 | if ($mask=~/^(\d{1,2})$/ && (($1<=32 && $1>=8))){ | |
308 | if($full == 0){ return &General::cidrtosub($mask);}else{ | |
309 | return $net."/".&General::cidrtosub($mask); | |
310 | } | |
311 | }else{ | |
312 | return 3; | |
313 | } | |
314 | return 3; | |
315 | } | |
316 | ||
317 | ||
318 | sub iporsubtocidr | |
319 | { | |
320 | #gets: Ip Address or subnetmask in decimal oder CIDR | |
321 | #Gives: What it gets only in CIDR format | |
322 | my $subnet=$_[0]; | |
323 | my $net; | |
324 | my $mask; | |
325 | my $full=0; | |
326 | if ($subnet =~ /^(.*?)\/(.*?)$/) { | |
327 | ($net,$mask) = split (/\//,$subnet); | |
328 | $full=1; | |
329 | }else{ | |
330 | $mask=$subnet; | |
331 | } | |
332 | #Subnet in decimal and valid? | |
333 | if ($mask=~/^(\d{1,3})\.(\d{1,3})\.(\d{1,3})\.(\d{1,3})$/ &&(($1<=255 && $2<=$1 && $3<=$2 && $4<=$3 ))) { | |
334 | for (my $i=8;$i<=32;$i++){ | |
335 | if (&General::cidrtosub($i) eq $mask){ | |
336 | if ($full == 0){return &General::subtocidr($mask);}else{ | |
337 | return $net."/".&General::subtocidr($mask); | |
338 | } | |
339 | } | |
340 | } | |
341 | } | |
342 | #Subnet already in binary format? | |
343 | if ($mask=~/^(\d{1,2})$/ && (($1<=32 && $1>=8))){ | |
344 | if($full == 0){ return $mask;}else{ | |
345 | return $net."/".$mask; | |
346 | } | |
347 | }else{ | |
348 | return 3; | |
349 | } | |
350 | return 3; | |
351 | } | |
352 | ||
353 | sub getnetworkip | |
354 | { | |
355 | #Gets: IP, CIDR (10.10.10.0-255, 24) | |
356 | #Gives: 10.10.10.0 | |
357 | my ($ccdip,$ccdsubnet) = @_; | |
358 | my $ip_address_binary = inet_aton( $ccdip ); | |
359 | my $netmask_binary = ~pack("N", (2**(32-$ccdsubnet))-1); | |
360 | my $network_address = inet_ntoa( $ip_address_binary & $netmask_binary ); | |
361 | return $network_address; | |
362 | } | |
363 | ||
364 | sub getccdbc | |
365 | { | |
366 | #Gets: IP in Form ("192.168.0.0/24") | |
367 | #Gives: Broadcastaddress of network | |
368 | my $ccdnet=$_; | |
369 | my ($ccdip,$ccdsubnet) = split "/",$ccdnet; | |
370 | my $ip_address_binary = inet_aton( $ccdip ); | |
371 | my $netmask_binary = ~pack("N", (2**(32-$ccdsubnet))-1); | |
372 | my $broadcast_address = inet_ntoa( $ip_address_binary | ~$netmask_binary ); | |
373 | return $broadcast_address; | |
374 | } | |
e81be1e1 AM |
375 | |
376 | sub ip2dec | |
377 | { | |
378 | my $ip_num; | |
379 | my $ip=$_[0]; | |
380 | if ( $ip =~ /(\d{1,3})\.(\d{1,3})\.(\d{1,3})\.(\d{1,3})/ ) { | |
381 | $ip_num = (($1*256**3) + ($2*256**2) + ($3*256) + $4); | |
382 | } else { | |
383 | $ip_num = -1; | |
384 | } | |
385 | $ip_num = (($1*256**3) + ($2*256**2) + ($3*256) + $4); | |
386 | return($ip_num); | |
387 | } | |
388 | ||
389 | sub dec2ip | |
390 | { | |
391 | my $ip; | |
392 | my $ip_num=$_[0]; | |
393 | my $o1=$ip_num%256; | |
394 | $ip_num=int($ip_num/256); | |
395 | my $o2=$ip_num%256; | |
396 | $ip_num=int($ip_num/256); | |
397 | my $o3=$ip_num%256; | |
398 | $ip_num=int($ip_num/256); | |
399 | my $o4=$ip_num%256; | |
400 | $ip="$o4.$o3.$o2.$o1"; | |
401 | return ($ip); | |
402 | } | |
403 | ||
8c877a82 AM |
404 | sub getnextip |
405 | { | |
e81be1e1 AM |
406 | my $decip=&ip2dec($_[0]); |
407 | $decip=$decip+4; | |
408 | return &dec2ip($decip); | |
8c877a82 | 409 | } |
e81be1e1 | 410 | |
8c877a82 AM |
411 | sub getlastip |
412 | { | |
e81be1e1 AM |
413 | my $decip=&ip2dec($_[0]); |
414 | $decip--; | |
415 | return &dec2ip($decip); | |
8c877a82 AM |
416 | } |
417 | ||
418 | sub validipandmask | |
419 | { | |
420 | #Gets: Ip address in 192.168.0.0/24 or 192.168.0.0/255.255.255.0 and checks if subnet valid | |
421 | #Gives: True bzw 0 if success or false | |
422 | my $ccdnet=$_[0]; | |
423 | my $subcidr; | |
424 | ||
425 | if (!($ccdnet =~ /^(.*?)\/(.*?)$/)) { | |
426 | return 0; | |
427 | } | |
428 | my ($ccdip,$ccdsubnet)=split (/\//, $ccdnet); | |
429 | #IP valid? | |
430 | if ($ccdip=~/^(\d{1,3})\.(\d{1,3})\.(\d{1,3})\.(\d{1,3})$/ &&(($1>0 && $1<=255 && $2>=0 && $2<=255 && $3>=0 && $3<=255 && $4<=255 ))) { | |
431 | #Subnet in decimal and valid? | |
432 | if ($ccdsubnet=~/^(\d{1,3})\.(\d{1,3})\.(\d{1,3})\.(\d{1,3})$/ &&(($1<=255 && $2<=$1 && $3<=$2 && $4<=$3 ))) { | |
290007b3 | 433 | for (my $i=8;$i<=32;$i++){ |
8c877a82 AM |
434 | if (&General::cidrtosub($i) eq $ccdsubnet){ |
435 | return 1; | |
436 | } | |
437 | } | |
438 | #Subnet already in binary format? | |
290007b3 | 439 | }elsif ($ccdsubnet=~/^(\d{1,2})$/ && (($1<=32 && $1>=8))){ |
8c877a82 AM |
440 | return 1; |
441 | }else{ | |
442 | return 0; | |
443 | } | |
444 | ||
445 | } | |
446 | return 0; | |
ac1cfefa MT |
447 | } |
448 | ||
e2429e8d AM |
449 | sub checksubnets |
450 | { | |
e2429e8d AM |
451 | my %ccdconfhash=(); |
452 | my @ccdconf=(); | |
453 | my $ccdname=$_[0]; | |
454 | my $ccdnet=$_[1]; | |
455 | my $errormessage; | |
456 | my ($ip,$cidr)=split(/\//,$ccdnet); | |
457 | $cidr=&iporsubtocidr($cidr); | |
e2429e8d AM |
458 | #get OVPN-Subnet (dynamic range) |
459 | my %ovpnconf=(); | |
460 | &readhash("${General::swroot}/ovpn/settings", \%ovpnconf); | |
461 | my ($ovpnip,$ovpncidr)= split (/\//,$ovpnconf{'DOVPN_SUBNET'}); | |
462 | $ovpncidr=&iporsubtocidr($ovpncidr); | |
e2429e8d AM |
463 | #check if we try to use same network as ovpn server |
464 | if ("$ip/$cidr" eq "$ovpnip/$ovpncidr") { | |
465 | $errormessage=$errormessage.$Lang::tr{'ccd err isovpnnet'}."<br>"; | |
466 | return $errormessage; | |
467 | } | |
e2429e8d AM |
468 | #check if we use a network-name/subnet that already exists |
469 | &readhasharray("${General::swroot}/ovpn/ccd.conf", \%ccdconfhash); | |
470 | foreach my $key (keys %ccdconfhash) { | |
471 | @ccdconf=split(/\//,$ccdconfhash{$key}[1]); | |
472 | if ($ccdname eq $ccdconfhash{$key}[0]) | |
473 | { | |
474 | $errormessage=$errormessage.$Lang::tr{'ccd err nameexist'}."<br>"; | |
475 | return $errormessage; | |
476 | } | |
477 | my ($newip,$newsub) = split(/\//,$ccdnet); | |
478 | if (&IpInSubnet($newip,$ccdconf[0],&iporsubtodec($ccdconf[1]))) | |
479 | { | |
480 | $errormessage=$errormessage.$Lang::tr{'ccd err issubnet'}."<br>"; | |
481 | return $errormessage; | |
482 | } | |
e2429e8d | 483 | } |
e2429e8d AM |
484 | #check if we use a ipsec right network which is already defined |
485 | my %ipsecconf=(); | |
486 | &General::readhasharray("${General::swroot}/vpn/config", \%ipsecconf); | |
487 | foreach my $key (keys %ipsecconf){ | |
488 | if ($ipsecconf{$key}[11] ne ''){ | |
e2429e8d AM |
489 | my ($ipsecip,$ipsecsub) = split (/\//, $ipsecconf{$key}[11]); |
490 | $ipsecsub=&iporsubtodec($ipsecsub); | |
f7e3d208 AM |
491 | if($ipsecconf{$key}[1] ne $ccdname){ |
492 | if ( &IpInSubnet ($ip,$ipsecip,$ipsecsub) ){ | |
ac2f7107 | 493 | $errormessage=$Lang::tr{'ccd err isipsecnet'}." Name: $ipsecconf{$key}[1]"; |
f7e3d208 AM |
494 | return $errormessage; |
495 | } | |
e2429e8d AM |
496 | } |
497 | } | |
498 | } | |
e2429e8d AM |
499 | #check if we use one of ipfire's networks (green,orange,blue) |
500 | my %ownnet=(); | |
501 | &readhash("${General::swroot}/ethernet/settings", \%ownnet); | |
502 | if (($ownnet{'GREEN_NETADDRESS'} ne '' && $ownnet{'GREEN_NETADDRESS'} ne '0.0.0.0') && &IpInSubnet($ownnet{'GREEN_NETADDRESS'},$ip,&iporsubtodec($cidr))){ $errormessage=$Lang::tr{'ccd err green'};return $errormessage;} | |
503 | if (($ownnet{'ORANGE_NETADDRESS'} ne '' && $ownnet{'ORANGE_NETADDRESS'} ne '0.0.0.0') && &IpInSubnet($ownnet{'ORANGE_NETADDRESS'},$ip,&iporsubtodec($cidr))){ $errormessage=$Lang::tr{'ccd err orange'};return $errormessage;} | |
504 | if (($ownnet{'BLUE_NETADDRESS'} ne '' && $ownnet{'BLUE_NETADDRESS'} ne '0.0.0.0') && &IpInSubnet($ownnet{'BLUE_NETADDRESS'},$ip,&iporsubtodec($cidr))){ $errormessage=$Lang::tr{'ccd err blue'};return $errormessage;} | |
505 | if (($ownnet{'RED_NETADDRESS'} ne '' && $ownnet{'RED_NETADDRESS'} ne '0.0.0.0') && &IpInSubnet($ownnet{'RED_NETADDRESS'},$ip,&iporsubtodec($cidr))){ $errormessage=$Lang::tr{'ccd err red'};return $errormessage;} | |
e2429e8d AM |
506 | } |
507 | ||
508 | ||
ac1cfefa MT |
509 | sub validport |
510 | { | |
511 | $_ = $_[0]; | |
512 | ||
513 | if (!/^\d+$/) { | |
514 | return 0; } | |
515 | if (/^0./) { | |
516 | return 0; } | |
517 | if ($_ >= 1 && $_ <= 65535) { | |
518 | return 1; } | |
519 | return 0; | |
520 | } | |
521 | ||
d30ea451 CS |
522 | sub validproxyport |
523 | { | |
524 | $_ = $_[0]; | |
525 | ||
526 | if (!/^\d+$/) { | |
527 | return 0; } | |
528 | if (/^0./) { | |
529 | return 0; } | |
530 | if ($_ == 53 || $_ == 222 || $_ == 444 || $_ == 81 ) { | |
531 | return 0; } | |
532 | elsif ($_ >= 1 && $_ <= 65535) { | |
533 | return 1; } | |
534 | return 0; | |
535 | } | |
536 | ||
ac1cfefa MT |
537 | sub validmac |
538 | { | |
539 | my $checkmac = $_[0]; | |
540 | my $ot = '[0-9a-f]{2}'; # 2 Hex digits (one octet) | |
541 | if ($checkmac !~ /^$ot:$ot:$ot:$ot:$ot:$ot$/i) | |
542 | { | |
543 | return 0; | |
544 | } | |
545 | return 1; | |
546 | } | |
547 | ||
548 | sub validhostname | |
549 | { | |
550 | # Checks a hostname against RFC1035 | |
551 | my $hostname = $_[0]; | |
552 | ||
553 | # Each part should be at least two characters in length | |
554 | # but no more than 63 characters | |
555 | if (length ($hostname) < 1 || length ($hostname) > 63) { | |
556 | return 0;} | |
557 | # Only valid characters are a-z, A-Z, 0-9 and - | |
8c877a82 | 558 | if ($hostname !~ /^[a-zA-Z0-9-\s]*$/) { |
ac1cfefa MT |
559 | return 0;} |
560 | # First character can only be a letter or a digit | |
561 | if (substr ($hostname, 0, 1) !~ /^[a-zA-Z0-9]*$/) { | |
562 | return 0;} | |
563 | # Last character can only be a letter or a digit | |
564 | if (substr ($hostname, -1, 1) !~ /^[a-zA-Z0-9]*$/) { | |
565 | return 0;} | |
566 | return 1; | |
567 | } | |
568 | ||
569 | sub validdomainname | |
570 | { | |
571 | my $part; | |
572 | ||
573 | # Checks a domain name against RFC1035 | |
574 | my $domainname = $_[0]; | |
575 | my @parts = split (/\./, $domainname); # Split hostname at the '.' | |
576 | ||
577 | foreach $part (@parts) { | |
578 | # Each part should be at least two characters in length | |
579 | # but no more than 63 characters | |
580 | if (length ($part) < 2 || length ($part) > 63) { | |
581 | return 0;} | |
582 | # Only valid characters are a-z, A-Z, 0-9 and - | |
583 | if ($part !~ /^[a-zA-Z0-9-]*$/) { | |
584 | return 0;} | |
585 | # First character can only be a letter or a digit | |
586 | if (substr ($part, 0, 1) !~ /^[a-zA-Z0-9]*$/) { | |
587 | return 0;} | |
588 | # Last character can only be a letter or a digit | |
589 | if (substr ($part, -1, 1) !~ /^[a-zA-Z0-9]*$/) { | |
590 | return 0;} | |
591 | } | |
592 | return 1; | |
593 | } | |
594 | ||
595 | sub validfqdn | |
596 | { | |
597 | my $part; | |
598 | ||
599 | # Checks a fully qualified domain name against RFC1035 | |
600 | my $fqdn = $_[0]; | |
601 | my @parts = split (/\./, $fqdn); # Split hostname at the '.' | |
602 | if (scalar(@parts) < 2) { # At least two parts should | |
603 | return 0;} # exist in a FQDN | |
604 | # (i.e. hostname.domain) | |
605 | foreach $part (@parts) { | |
606 | # Each part should be at least one character in length | |
607 | # but no more than 63 characters | |
608 | if (length ($part) < 1 || length ($part) > 63) { | |
609 | return 0;} | |
610 | # Only valid characters are a-z, A-Z, 0-9 and - | |
611 | if ($part !~ /^[a-zA-Z0-9-]*$/) { | |
612 | return 0;} | |
613 | # First character can only be a letter or a digit | |
614 | if (substr ($part, 0, 1) !~ /^[a-zA-Z0-9]*$/) { | |
615 | return 0;} | |
616 | # Last character can only be a letter or a digit | |
617 | if (substr ($part, -1, 1) !~ /^[a-zA-Z0-9]*$/) { | |
618 | return 0;} | |
619 | } | |
620 | return 1; | |
621 | } | |
622 | ||
623 | sub validportrange # used to check a port range | |
624 | { | |
625 | my $port = $_[0]; # port values | |
626 | $port =~ tr/-/:/; # replace all - with colons just in case someone used - | |
627 | my $srcdst = $_[1]; # is it a source or destination port | |
628 | ||
629 | if (!($port =~ /^(\d+)\:(\d+)$/)) { | |
630 | ||
631 | if (!(&validport($port))) { | |
632 | if ($srcdst eq 'src'){ | |
633 | return $Lang::tr{'source port numbers'}; | |
634 | } else { | |
635 | return $Lang::tr{'destination port numbers'}; | |
636 | } | |
637 | } | |
638 | } | |
639 | else | |
640 | { | |
641 | my @ports = ($1, $2); | |
642 | if ($1 >= $2){ | |
643 | if ($srcdst eq 'src'){ | |
644 | return $Lang::tr{'bad source range'}; | |
645 | } else { | |
646 | return $Lang::tr{'bad destination range'}; | |
647 | } | |
648 | } | |
649 | foreach $_ (@ports) | |
650 | { | |
651 | if (!(&validport($_))) { | |
652 | if ($srcdst eq 'src'){ | |
653 | return $Lang::tr{'source port numbers'}; | |
654 | } else { | |
655 | return $Lang::tr{'destination port numbers'}; | |
656 | } | |
657 | } | |
658 | } | |
659 | return; | |
660 | } | |
661 | } | |
662 | ||
663 | # Test if IP is within a subnet | |
664 | # Call: IpInSubnet (Addr, Subnet, Subnet Mask) | |
665 | # Subnet can be an IP of the subnet: 10.0.0.0 or 10.0.0.1 | |
666 | # Everything in dottted notation | |
667 | # Return: TRUE/FALSE | |
668 | sub IpInSubnet | |
669 | { | |
670 | my $ip = unpack('N', &Socket::inet_aton(shift)); | |
671 | my $start = unpack('N', &Socket::inet_aton(shift)); | |
672 | my $mask = unpack('N', &Socket::inet_aton(shift)); | |
673 | $start &= $mask; # base of subnet... | |
674 | my $end = $start + ~$mask; | |
675 | return (($ip >= $start) && ($ip <= $end)); | |
676 | } | |
677 | ||
c545beb1 MT |
678 | # |
679 | # Return the following IP (IP+1) in dotted notation. | |
680 | # Call: NextIP ('1.1.1.1'); | |
681 | # Return: '1.1.1.2' | |
682 | # | |
683 | sub NextIP | |
684 | { | |
685 | return &Socket::inet_ntoa( pack("N", 1 + unpack('N', &Socket::inet_aton(shift)) | |
686 | ) | |
687 | ); | |
688 | } | |
8c877a82 AM |
689 | sub NextIP2 |
690 | { | |
691 | return &Socket::inet_ntoa( pack("N", 4 + unpack('N', &Socket::inet_aton(shift)) | |
692 | ) | |
693 | ); | |
694 | } | |
45762fc6 AF |
695 | sub ipcidr |
696 | { | |
697 | my ($ip,$cidr) = &Net::IPv4Addr::ipv4_parse(shift); | |
698 | return "$ip\/$cidr"; | |
699 | } | |
700 | ||
54fd0535 MT |
701 | sub ipcidr2msk |
702 | { | |
703 | my ($ip,$cidr) = &Net::IPv4Addr::ipv4_parse(shift); | |
704 | my $netmask = &Net::IPv4Addr::ipv4_cidr2msk($cidr); | |
705 | return "$ip\/$netmask"; | |
706 | } | |
707 | ||
708 | ||
ac1cfefa MT |
709 | sub validemail { |
710 | my $mail = shift; | |
711 | return 0 if ( $mail !~ /^[0-9a-zA-Z\.\-\_]+\@[0-9a-zA-Z\.\-]+$/ ); | |
712 | return 0 if ( $mail =~ /^[^0-9a-zA-Z]|[^0-9a-zA-Z]$/); | |
713 | return 0 if ( $mail !~ /([0-9a-zA-Z]{1})\@./ ); | |
714 | return 0 if ( $mail !~ /.\@([0-9a-zA-Z]{1})/ ); | |
715 | return 0 if ( $mail =~ /.\.\-.|.\-\..|.\.\..|.\-\-./g ); | |
716 | return 0 if ( $mail =~ /.\.\_.|.\-\_.|.\_\..|.\_\-.|.\_\_./g ); | |
717 | return 0 if ( $mail !~ /\.([a-zA-Z]{2,4})$/ ); | |
718 | return 1; | |
719 | } | |
720 | ||
c545beb1 MT |
721 | # |
722 | # Currently only vpnmain use this three procs (readhasharray, writehasharray, findhasharray) | |
723 | # The 'key' used is numeric but is perfectly unneeded! This will to be removed so don't use | |
724 | # this code. Vpnmain will be splitted in parts: x509/pki, connection ipsec, connection other,... . | |
725 | # | |
ac1cfefa MT |
726 | sub readhasharray { |
727 | my ($filename, $hash) = @_; | |
728 | %$hash = (); | |
729 | ||
730 | open(FILE, $filename) or die "Unable to read file $filename"; | |
731 | ||
732 | while (<FILE>) { | |
733 | my ($key, $rest, @temp); | |
734 | chomp; | |
735 | ($key, $rest) = split (/,/, $_, 2); | |
c545beb1 | 736 | if ($key =~ /^[0-9]+$/) { |
ac1cfefa MT |
737 | @temp = split (/,/, $rest); |
738 | $hash->{$key} = \@temp; | |
739 | } | |
740 | } | |
741 | close FILE; | |
742 | return; | |
743 | } | |
744 | ||
745 | sub writehasharray { | |
746 | my ($filename, $hash) = @_; | |
747 | my ($key, @temp, $i); | |
748 | ||
749 | open(FILE, ">$filename") or die "Unable to write to file $filename"; | |
750 | ||
751 | foreach $key (keys %$hash) { | |
8c877a82 AM |
752 | if ($key =~ /^[0-9]+$/) { |
753 | print FILE "$key"; | |
754 | foreach $i (0 .. $#{$hash->{$key}}) { | |
755 | print FILE ",$hash->{$key}[$i]"; | |
756 | } | |
757 | print FILE "\n"; | |
758 | } | |
ac1cfefa MT |
759 | } |
760 | close FILE; | |
761 | return; | |
762 | } | |
763 | ||
764 | sub findhasharraykey { | |
765 | foreach my $i (1 .. 1000000) { | |
766 | if ( ! exists $_[0]{$i}) { | |
767 | return $i; | |
768 | } | |
769 | } | |
770 | } | |
771 | ||
772 | sub srtarray | |
773 | # Darren Critchley - darrenc@telus.net - (c) 2003 | |
774 | # &srtarray(SortOrder, AlphaNumeric, SortDirection, ArrayToBeSorted) | |
775 | # This subroutine will take the following parameters: | |
776 | # ColumnNumber = the column which you want to sort on, starts at 1 | |
777 | # AlphaNumberic = a or n (lowercase) defines whether the sort should be alpha or numberic | |
778 | # SortDirection = asc or dsc (lowercase) Ascending or Descending sort | |
779 | # ArrayToBeSorted = the array that wants sorting | |
780 | # | |
781 | # Returns an array that is sorted to your specs | |
782 | # | |
783 | # If SortOrder is greater than the elements in array, then it defaults to the first element | |
784 | # | |
785 | { | |
786 | my ($colno, $alpnum, $srtdir, @tobesorted) = @_; | |
787 | my @tmparray; | |
788 | my @srtedarray; | |
789 | my $line; | |
790 | my $newline; | |
791 | my $ctr; | |
792 | my $ttlitems = scalar @tobesorted; # want to know the number of rows in the passed array | |
793 | if ($ttlitems < 1){ # if no items, don't waste our time lets leave | |
794 | return (@tobesorted); | |
795 | } | |
796 | my @tmp = split(/\,/,$tobesorted[0]); | |
797 | $ttlitems = scalar @tmp; # this should be the number of elements in each row of the passed in array | |
798 | ||
799 | # Darren Critchley - validate parameters | |
800 | if ($colno > $ttlitems){$colno = '1';} | |
801 | $colno--; # remove one from colno to deal with arrays starting at 0 | |
802 | if($colno < 0){$colno = '0';} | |
803 | if ($alpnum ne '') { $alpnum = lc($alpnum); } else { $alpnum = 'a'; } | |
804 | if ($srtdir ne '') { $srtdir = lc($srtdir); } else { $srtdir = 'src'; } | |
805 | ||
806 | foreach $line (@tobesorted) | |
807 | { | |
808 | chomp($line); | |
809 | if ($line ne '') { | |
810 | my @temp = split(/\,/,$line); | |
811 | # Darren Critchley - juggle the fields so that the one we want to sort on is first | |
812 | my $tmpholder = $temp[0]; | |
813 | $temp[0] = $temp[$colno]; | |
814 | $temp[$colno] = $tmpholder; | |
815 | $newline = ""; | |
816 | for ($ctr=0; $ctr < $ttlitems ; $ctr++) { | |
817 | $newline=$newline . $temp[$ctr] . ","; | |
818 | } | |
819 | chop($newline); | |
820 | push(@tmparray,$newline); | |
821 | } | |
822 | } | |
823 | if ($alpnum eq 'n') { | |
824 | @tmparray = sort {$a <=> $b} @tmparray; | |
825 | } else { | |
826 | @tmparray = (sort @tmparray); | |
827 | } | |
828 | foreach $line (@tmparray) | |
829 | { | |
830 | chomp($line); | |
831 | if ($line ne '') { | |
832 | my @temp = split(/\,/,$line); | |
833 | my $tmpholder = $temp[0]; | |
834 | $temp[0] = $temp[$colno]; | |
835 | $temp[$colno] = $tmpholder; | |
836 | $newline = ""; | |
837 | for ($ctr=0; $ctr < $ttlitems ; $ctr++){ | |
838 | $newline=$newline . $temp[$ctr] . ","; | |
839 | } | |
840 | chop($newline); | |
841 | push(@srtedarray,$newline); | |
842 | } | |
843 | } | |
844 | ||
845 | if ($srtdir eq 'dsc') { | |
846 | @tmparray = reverse(@srtedarray); | |
847 | return (@tmparray); | |
848 | } else { | |
849 | return (@srtedarray); | |
850 | } | |
851 | } | |
852 | ||
853 | sub FetchPublicIp { | |
854 | my %proxysettings; | |
855 | &General::readhash("${General::swroot}/proxy/settings", \%proxysettings); | |
856 | if ($_=$proxysettings{'UPSTREAM_PROXY'}) { | |
857 | my ($peer, $peerport) = (/^(?:[a-zA-Z ]+\:\/\/)?(?:[A-Za-z0-9\_\.\-]*?(?:\:[A-Za-z0-9\_\.\-]*?)?\@)?([a-zA-Z0-9\.\_\-]*?)(?:\:([0-9]{1,5}))?(?:\/.*?)?$/); | |
858 | Net::SSLeay::set_proxy($peer,$peerport,$proxysettings{'UPSTREAM_USER'},$proxysettings{'UPSTREAM_PASSWORD'} ); | |
859 | } | |
b2f8244a | 860 | my $user_agent = &MakeUserAgent(); |
5a2935b1 | 861 | my ($out, $response) = Net::SSLeay::get_http( 'checkip.dns.lightningwirelabs.com', |
ac1cfefa MT |
862 | 80, |
863 | "/", | |
b2f8244a | 864 | Net::SSLeay::make_headers('User-Agent' => $user_agent ) |
ac1cfefa MT |
865 | ); |
866 | if ($response =~ m%HTTP/1\.. 200 OK%) { | |
5a2935b1 | 867 | $out =~ /Your IP address is: (\d+.\d+.\d+.\d+)/; |
ac1cfefa MT |
868 | return $1; |
869 | } | |
870 | return ''; | |
871 | } | |
872 | ||
873 | # | |
874 | # Check if hostname.domain provided have IP provided | |
875 | # use gethostbyname to verify that | |
876 | # Params: | |
877 | # IP | |
878 | # hostname | |
879 | # domain | |
880 | # Output | |
881 | # 1 IP matches host.domain | |
882 | # 0 not in sync | |
883 | # | |
884 | sub DyndnsServiceSync ($;$;$) { | |
885 | ||
886 | my ($ip,$hostName,$domain) = @_; | |
887 | my @addresses; | |
888 | ||
889 | #fix me no ip GROUP, what is the name ? | |
890 | $hostName =~ s/$General::noipprefix//; | |
891 | if ($hostName) { #may be empty | |
892 | $hostName = "$hostName.$domain"; | |
893 | @addresses = gethostbyname($hostName); | |
894 | } | |
895 | ||
896 | if ($addresses[0] eq '') { # nothing returned ? | |
897 | $hostName = $domain; # try resolving with domain only | |
898 | @addresses = gethostbyname($hostName); | |
899 | } | |
900 | ||
901 | if ($addresses[0] ne '') { # got something ? | |
902 | #&General::log("name:$addresses[0], alias:$addresses[1]"); | |
903 | # Build clear text list of IP | |
904 | @addresses = map ( &Socket::inet_ntoa($_), @addresses[4..$#addresses]); | |
905 | if (grep (/$ip/, @addresses)) { | |
906 | return 1; | |
907 | } | |
908 | } | |
909 | return 0; | |
910 | } | |
911 | # | |
912 | # This sub returns the red IP used to compare in DyndnsServiceSync | |
913 | # | |
914 | sub GetDyndnsRedIP { | |
915 | my %settings; | |
916 | &General::readhash("${General::swroot}/ddns/settings", \%settings); | |
917 | ||
918 | open(IP, "${General::swroot}/red/local-ipaddress") or return 'unavailable'; | |
919 | my $ip = <IP>; | |
920 | close(IP); | |
921 | chomp $ip; | |
922 | ||
923 | if (&General::IpInSubnet ($ip,'10.0.0.0','255.0.0.0') || | |
924 | &General::IpInSubnet ($ip,'172.16.0.0.','255.240.0.0') || | |
925 | &General::IpInSubnet ($ip,'192.168.0.0','255.255.0.0')) | |
926 | { | |
927 | if ($settings{'BEHINDROUTER'} eq 'FETCH_IP') { | |
928 | my $RealIP = &General::FetchPublicIp; | |
929 | $ip = (&General::validip ($RealIP) ? $RealIP : 'unavailable'); | |
930 | } | |
931 | } | |
932 | return $ip; | |
933 | } | |
c545beb1 MT |
934 | |
935 | # Translate ICMP code to text | |
936 | # ref: http://www.iana.org/assignments/icmp-parameters | |
937 | sub GetIcmpDescription ($) { | |
938 | my $index = shift; | |
939 | my @icmp_description = ( | |
940 | 'Echo Reply', #0 | |
941 | 'Unassigned', | |
942 | 'Unassigned', | |
943 | 'Destination Unreachable', | |
944 | 'Source Quench', | |
945 | 'Redirect', | |
946 | 'Alternate Host Address', | |
947 | 'Unassigned', | |
948 | 'Echo', | |
949 | 'Router Advertisement', | |
950 | 'Router Solicitation', #10 | |
951 | 'Time Exceeded', | |
952 | 'Parameter Problem', | |
953 | 'Timestamp', | |
954 | 'Timestamp Reply', | |
955 | 'Information Request', | |
956 | 'Information Reply', | |
957 | 'Address Mask Request', | |
958 | 'Address Mask Reply', | |
959 | 'Reserved (for Security)', | |
960 | 'Reserved (for Robustness Experiment)', #20 | |
961 | 'Reserved', | |
962 | 'Reserved', | |
963 | 'Reserved', | |
964 | 'Reserved', | |
965 | 'Reserved', | |
966 | 'Reserved', | |
967 | 'Reserved', | |
968 | 'Reserved', | |
969 | 'Reserved', | |
970 | 'Traceroute', #30 | |
971 | 'Datagram Conversion Error', | |
972 | 'Mobile Host Redirect', | |
973 | 'IPv6 Where-Are-You', | |
974 | 'IPv6 I-Am-Here', | |
975 | 'Mobile Registration Request', | |
976 | 'Mobile Registration Reply', | |
977 | 'Domain Name Request', | |
978 | 'Domain Name Reply', | |
979 | 'SKIP', | |
980 | 'Photur', #40 | |
981 | 'Experimental'); | |
982 | if ($index>41) {return 'unknown'} else {return @icmp_description[$index]}; | |
983 | } | |
b2f8244a MT |
984 | |
985 | sub GetCoreUpdateVersion() { | |
986 | my $core_update; | |
987 | ||
988 | open(FILE, "/opt/pakfire/db/core/mine"); | |
989 | while (<FILE>) { | |
990 | $core_update = $_; | |
991 | last; | |
992 | } | |
993 | close(FILE); | |
994 | ||
995 | return $core_update; | |
996 | } | |
997 | ||
998 | sub MakeUserAgent() { | |
999 | my $user_agent = "IPFire/$General::version"; | |
1000 | ||
1001 | my $core_update = &GetCoreUpdateVersion(); | |
1002 | if ($core_update ne "") { | |
1003 | $user_agent .= "/$core_update"; | |
1004 | } | |
1005 | ||
1006 | return $user_agent; | |
1007 | } | |
1008 | ||
ac1cfefa | 1009 | 1; |