#!/usr/bin/perl =for comment Part of AREDN -- Used for creating Amateur Radio Emergency Data Networks Copyright (c) 2015 Darryl Quinn See Contributors file for additional contributors This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation version 3 of the License. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program. If not, see . Additional Terms: Additional use restrictions exist on the AREDN(TM) trademark and logo. See AREDNLicense.txt for more info. Attributions to the AREDN Project must be retained in the source code. If importing this code into a new or existing project attribution to the AREDN project must be added to the source code. You must not misrepresent the origin of the material contained within. Modified versions must be modified to attribute to the original source and be marked in reasonable ways as differentiate it from the original version. =cut $debug = 0; BEGIN {push @INC, '/www/cgi-bin'}; use perlfunc; use ucifunc; use tunfunc; $VPNVER="1.0"; $config = nvram_get("config"); $node = nvram_get("node"); $node = "NOCALL" if $node eq ""; #truncate node name down to 23 chars (max) to avoid vtun issues #this becomes the vtun "username" $node = substr($node,0,23); read_postdata(); ################################# # save server connections from form to UCI ################################# sub save_connections() { my $enabled_count=0; for ($i=0; $i < $parms{"conn_num"}; $i++) { my $net = $parms{"conn${i}_netip"}; $rc=&uci_add_named_section("vtun","server_$i","server"); # generate the clientip and serverip my ($clientip, $serverip) = &generate_ips($net); # generate the VTUN NODE name based on the node name and netip $net=~ s/\./\-/g; my $vtun_node_name=uc "$node-$net"; $rc=&uci_set_named_option("vtun","server_$i","clientip",$clientip); push(@conn_err,"Problem saving UCI vtun connection client IP (#$i)") if $rc; $rc=&uci_set_named_option("vtun","server_$i","serverip",$serverip); push(@conn_err,"Problem saving UCI vtun connection server IP (#$i)") if $rc; $rc=&uci_set_named_option("vtun","server_$i","node",$vtun_node_name); push(@conn_err,"Problem saving UCI vtun connection name (#$i)") if $rc; $rc=&uci_set_named_option("vtun","server_$i","contact",$contact); push(@conn_err,"Problem saving UCI vtun contact info (#$i)") if $rc; foreach $var (qw(enabled host passwd netip contact)) { $rc=&uci_set_named_option("vtun","server_$i",$var,$parms{"conn${i}_$var"}); push(@conn_err,"Problem saving UCI vtun connection (#$i)") if $rc; } $enabled_count++ if $parms{"conn${i}_enabled"}; } my $maxservers = &get_tunnel_maxservers(); push(@conn_err,"Number of servers enabled ($enabled_count) exceeds maxservers ($maxservers); only the first $maxservers will activate.") if $enabled_count > $maxservers; } ################# # page checks ################# if($parms{button_reboot}) { system "/sbin/reboot"; } if($parms{button_install}) { install_vtun(); } reboot_required() if($config eq "" or -e "/tmp/reboot-required"); &vpn_setup_required("vpnc") unless(-e "/usr/sbin/vtund" ); ################# # If RESET, revert the UCI file ################# if($parms{button_reset}) { ($rc,$res)=&uci_revert("vtun"); $rc=&uci_commit("vtun"); } ################# # HANDLE connection deletes ################# for($i = 0; $i < 10; $i++) { $varname="conn${i}_del"; if($parms{$varname}) { &uci_delete_named_section("vtun","server_${i}"); for($x = $i+1; $x < 10; $x++) { $y=$x-1; &uci_rename_named_section("vtun","server_$x","server_${y}"); } } } ################# # If RESET or FIRST TIME, load servers into parms ################# if($parms{button_reset} or not $parms{reload}) { # revert to previous state on initial load ($rc,$res)=&uci_revert("vtun"); # load servers from UCI &get_connection_info(); # initialize the "add" entries to clear them foreach $var (qw(enabled host passwd netip contact)) { $varname = "conn${val}_$var"; $parms{$varname} = ""; $parms{$varname} = "" if($var eq 'enabled'); } } ################# # load connections from FORM and validate ################# for($i =0 , @list = (); $i < $parms{conn_num}; $i++) { push @list, $i } push @list, "_add"; $conn_num = 0; foreach $val (@list) { foreach $var (qw(enabled host passwd netip contact)) { $varname = "conn${val}_$var"; $parms{$varname} = "0" if($val eq "enabled" and $parms{$varname} eq ""); $parms{$varname} = "" unless $parms{$varname}; $parms{$varname} =~ s/^\s+//; $parms{$varname} =~ s/\s+$//; if($val ne "_add") { if($parms{$varname} eq "" and ($var eq "enabled")) { $parms{$varname} = "0"; } } eval sprintf("\$%s = \$parms{%s}", $var, $varname); } # Validate ADDed values if($val eq "_add") { next unless ($enabled or $host or $passwd or $netip or $contact) and ($parms{conn_add} or $parms{button_save}) } else { next if $parms{"conn${val}_del"} } # Validate password is vtun compliant # TODO if($val eq "_add" and $parms{button_save}) { push @conn_err, "$val this connection must be added or cleared out before saving changes"; next; } # password MUST be alphanumeric (no special chars) push @conn_err, "The password cannot contain non-alphanumeric characters (#$conn_num)" if ($passwd =~ m/[^a-zA-Z0-9@\-]/); push @conn_err, "A connection server is required" if($host eq ""); push @conn_err, "A connection password is required" if($passwd eq ""); push @conn_err, "A connection network IP is required" if($netip eq ""); next if $val eq "_add" and @conn_err and $conn_err[-1] =~ /^$val /; $parms{"conn${conn_num}_enabled"} = $enabled; $parms{"conn${conn_num}_host"} = $host; $parms{"conn${conn_num}_passwd"} = $passwd; $parms{"conn${conn_num}_netip"} = $netip; $parms{"conn${conn_num}_contact"} = $contact; # Commit the data for this connection $conn_num++; # Clear out the ADD values if($val eq "_add") { foreach $var (qw(enabled host passwd netip contact)) { $parms{"conn_add_${var}"} = ""; } } } $parms{conn_num} = $conn_num; ################# # SAVE the connections ################# $rc=save_connections(); ################# # SAVE the connections the UCI vtun file ################# if($parms{button_save} and not @conn_err) { if (&uci_commit("vtun")) { push(@errors,"Problem committing UCI vtun"); } &uci_clone("vtun"); unless($debug == 3) { # Regenerate olsrd files and restart olsrd push(@errors,"Problem restarting olsrd") if system "/etc/init.d/olsrd restart > /dev/null 2>&1"; push(@errors,"Problem restaring vtund") if system "/etc/init.d/vtund restart > /dev/null 2>&1"; sleep 5; } } @active_tun=&get_active_tun(); ###################################################################################### # generate the page ###################################################################################### http_header() unless $debug == 2; html_header("$node setup", 1); print "
\n"; alert_banner(); print "
\n" unless $debug == 2; print "\n" if $debug == 2; print "\n"; ################# # Navigation bar ################# print "\n"; ################# # control buttons ################# print "\n"; push @hidden, ""; ################# # messages ################# if(@conn_err) { print "\n"; } if($parms{button_save}) { if(@conn_err) { print "\n"; } elsif(@errors) { print "\n"; } else { print "\n"; } print "\n"; } ################# # everything else ################# if($config eq "mesh") { print "\n"; print "\n"; } print "
\n"; navbar("vpnc"); print "
"; print "Help"; print "   \n"; print " \n"; print " \n"; print " \n"; print "
 
ERROR:
"; foreach(@conn_err) { print "$_
" } print "
Configuration NOT saved!
Configuration saved, however:
"; foreach(@errors) { print "$_
" } print "
Configuration saved and is now active.
 
\n"; &print_vpn_connections(); print "

\n"; print "

VPN v${VPNVER}

"; push @hidden, ""; ################# # add hidden form fields ################# foreach(@hidden) { print "$_\n" } ################# # close the form ################# print "
\n"; show_debug_info(); ################# # close the html ################# page_footer(); print "\n"; exit; ################## # page subsections ################## ###################################################### # List the connections to be made from this client ###################################################### sub print_vpn_connections() { print ""; print ""; print "\n"; print "\n"; for($i = 0, @list = (); $i < $parms{conn_num}; $i++) { push @list, $i }; push @list, "_add" unless($parms{conn_num} >= &get_tunnel_maxservers()); $cnum=0; foreach $val (@list) { foreach $var (qw(enabled host passwd netip contact)) { eval sprintf("\$%s = \$parms{conn%s_%s}", $var, $val, $var); } print "\n" if $val eq "_add" and scalar(@list) > 1; print ""; print ""; print ""; print ""; print ""; print ""; print ""; print ""; #contact info for this tunnel print "\n"; print ""; print "\n"; # display any errors while(@conn_err and $conn_err[0] =~ /^$val /) { $err = shift @conn_err; $err =~ s/^\S+ //; print "\n"; } #push @hidden, "" unless($val eq "_add"); print "\n"; $cnum++; } print "
Connect this node to the following servers:

Enabled?ServerPwdNetworkActive Action
"; # Required to be first, so, if the checkbox is cleared, a value will still POST print "" unless($val eq "_add"); print " "; if (&is_tunnel_active($netip,@active_tun) && ($val ne "_add")) { print ""; } else { print "" if ($val ne "_add"); } print " "; print "
Contact Info/Comment (Optional):
$err
\n"; } ################################# # load server connection info from UCI ################################# sub get_connection_info() { my @connections=&uci_get_names_by_sectiontype("vtun","server"); my $c=0; foreach (@connections) { my $myconn={}; $myconn=&uci_get_named_section("vtun",$_); foreach $var (qw(enabled host passwd netip contact)) { $parms{"conn${c}_$var"} = $myconn->{$var}; $parms{"conn${c}_$var"} = "0" if($parms{"conn${c}_$var"} eq ""); $myconn->{$var} = ""; } $c++; } $parms{conn_num} = scalar(@connections); } sub DEBUGEXIT() { my ($text) = @_; http_header(); html_header("$node setup", 1); print "DEBUG["; print $text; print "]"; exit; }