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aredn/files/usr/local/bin/node-setup

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Perl
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#!/usr/bin/perl -w -I/www/cgi-bin
use perlfunc;
$| = 1;
$auto = 0;
$do_basic = 1;
sub usage
{
die "
usage: node-setup [-a] [-p] <configname>
-a: automatic mode - don't ask any questions
-p: only process port forwarding and dhcp settings\n\n"
}
##########################
# main program starts here
# validate args
while(defined $ARGV[0] and $ARGV[0] =~ /^-/)
{
$arg = shift;
if ($arg eq "-a") { $auto = 1 }
elsif($arg eq "-p") { $do_basic = 0 }
else { usage() }
}
$config = shift;
usage() unless defined $config;
die "'$config' is not a valid configuration\n" unless -f "/etc/config.$config/_setup";
#chomp ($node = `nvram get node`);
#chomp ($mac2 = `nvram get mac2`);
#chomp ($tactical = `nvram get tactical`);
$node = nvram_get("node");
$tactical = nvram_get("tactical");
$mac2 = mac2ip(get_mac("wlan0"), 0);
$dtdmac = mac2ip(get_mac("eth0"), 0);
unless($auto)
{
print "\ncurrent node name is '$node'\n";
print "type a new name or just <enter> to keep the current name\n\n";
do
{
print "enter node name: ";
$node2 = <STDIN>;
die "node-setup aborted\n" if not defined $node2;
chomp $node2;
}
while($node2 =~ /[^\w\-]/ or $node2 =~ /_/);
print "\ncurrent tactical name is ";
if($tactical) { print "'$tactical'\n" }
else { print "not set\n" }
print "type a new name, <enter> to keep the current name,\n";
print "or @ to remove the tactical name\n\n";
do
{
print "enter tactical name: ";
$tac2 = <STDIN>;
die "node-setup aborted\n" if not defined $tac2;
chomp $tac2;
}
while($tac2 ne "@" and ($tac2 =~ /[^\w\-]/ or $tac2 =~ /_/));
$node = $node2 if $node2;
$tactical = $tac2 if $tac2;
$tactical = "" if $tac2 eq "@";
}
#
# load and verify the selected configuration
#
foreach $line (`cat /etc/config.$config/_setup`)
{
next if $line =~ /^\s*#/;
next if $line =~ /^\s*$/;
$line =~ s/<NODE>/$node/;
$line =~ s/<MAC2>/$mac2/;
$line =~ s/<DTDMAC>/$dtdmac/;
$line =~ /^(\w+)\s*=\s*(.*)$/;
$cfg{$1} = $2;
}
die "configuration load failed\n" unless keys %cfg;
# delete some config lines if necessary
if($cfg{wan_proto} eq "dhcp")
{
$deleteme{wan_ip} = 1;
$deleteme{wan_gw} = 1;
$deleteme{wan_mask} = 1;
}
$deleteme{lan_gw} = 1 if $cfg{dmz_mode} or $cfg{wan_proto} ne "disabled";
# lan_dhcp sense is inverted in the dhcp config file
# and it is a checkbox so it may not be defined - this fixes that
if($cfg{lan_dhcp}) { $cfg{lan_dhcp} = 0 }
else { $cfg{lan_dhcp} = 1 }
# verify that we have all the variables we need
chdir "/etc/config.$config" or die;
foreach(`grep "^[^#].*<" *`)
{
($file, $parm) = /^(\S+):.*<(\w+)>/;
if($parm eq uc $parm) # nvram variable
{
$lcparm = lc $parm;
die "parameter '$parm' in file '$file' does not exist\n" unless nvram_get($lcparm) ne "";
}
elsif(not $deleteme{$parm})
{
die "parameter '$parm' in file '$file' does not exist\n" unless exists $cfg{$parm};
}
}
# switch to dmz values if needed
if($cfg{dmz_mode})
{
foreach(qw(lan_ip lan_mask dhcp_start dhcp_end dhcp_limit))
{
$cfg{$_} = $cfg{"dmz_$_"};
}
}
# select ports and dhcp files based on mode
$portfile = "/etc/config.$config/_setup.ports";
$dhcpfile = "/etc/config.$config/_setup.dhcp";
$portfile .= ($cfg{dmz_mode} ? ".dmz" : ".nat") if $config eq "mesh";
$dhcpfile .= ($cfg{dmz_mode} ? ".dmz" : ".nat") if $config eq "mesh";
# basic configuration
if($do_basic)
{
# setup the staging area
system "rm -rf /tmp/new_config; mkdir /tmp/new_config";
# copy and process the new configuration
chdir "/etc/config.$config" or die;
foreach $file (glob "*")
{
chomp $file;
next if $file =~ /^_setup/;
next if $file =~ /^firewall.user/;
next if $file =~ /^olsrd/;
open(IN, $file) or die;
open(OUT, "> /tmp/new_config/$file") or die;
while(defined ($line = <IN>))
{
if($line =~ /^include\s+(\S+)/)
{
foreach $inc (`cat $1`)
{
print OUT $inc;
}
next;
}
$line =~ s/<NODE>/$node/;
$line =~ s/<MAC2>/$mac2/;
$line =~ s/<DTDMAC>/$dtdmac/;
$delparm = 0;
while(($parm) = $line =~ /^[^\#].*<(\S+)>/)
{
if($deleteme{$parm})
{
$delparm = 1;
last;
}
$line =~ s/<$parm>/$cfg{$parm}/;
}
print OUT $line unless $delparm;
}
close(OUT);
close(IN);
}
# make it official
system "rm -f /etc/config/*";
system "mv /tmp/new_config/* /etc/config";
unlink "/tmp/new_config";
system "cp -f /etc/config.$config/firewall.user /etc/";
#system "nvram set config=$config";
#system "nvram set node=$node";
#system "nvram set tactical=$tactical";
#system "nvram commit";
nvram_set("config", $config);
nvram_set("node", $node);
nvram_set("tactical", $tactical);
}
#
# generate the system files
#
open(HOSTS, ">/etc/hosts") or die;
print HOSTS "# automatically generated file - do not edit\n";
print HOSTS "# use /etc/hosts.user for custom entries\n";
print HOSTS "127.0.0.1\tlocalhost\n";
print HOSTS "$cfg{lan_ip}\tlocalnode ";
print HOSTS "\n$cfg{wifi_ip}\t" if $cfg{wifi_ip};
print HOSTS "$node $tactical\n";
print HOSTS add_ip_address($cfg{lan_ip}, 1), "\tlocalap\n" unless $cfg{dmz_mode};
open(ETHER, ">/etc/ethers") or die;
print ETHER "# automatically generated file - do not edit\n";
print ETHER "# use /etc/ethers.user for custom entries\n";
$netaddr = ip2decimal($cfg{lan_ip}) & ip2decimal($cfg{lan_mask});
foreach(`cat $dhcpfile`)
{
next if /^\s*#/;
next if /^\s*$/;
($mac, $ip, $host) = split /\s+/, $_;
$ip = decimal2ip($netaddr + $ip);
# filter out addresses that are illegal for the lan subnet
next unless validate_same_subnet($ip, $cfg{lan_ip}, $cfg{lan_mask});
next unless validate_ip_netmask($ip, $cfg{lan_mask});
printf ETHER "$mac\t$ip\n";
printf HOSTS "$ip\t$host\n";
}
print HOSTS "\n";
close(HOSTS);
close(ETHER);
system "cat /etc/hosts.user >> /etc/hosts" if -e "/etc/hosts.user";
system "cat /etc/ethers.user >> /etc/ethers" if -e "/etc/ethers.user";
unless($do_basic)
{
system "cp -f /etc/config.$config/firewall /etc/config";
system "cp -f /etc/config.$config/firewall.user /etc/";
}
open(FILE, ">>/etc/config/firewall") or die;
if($cfg{dmz_mode}) {
print FILE "\nconfig forwarding\n";
print FILE " option src wifi\n";
print FILE " option dest lan\n";
print FILE "\n";
print FILE "\nconfig forwarding\n";
print FILE " option src dtdlink\n";
print FILE " option dest lan\n";
system "uci set firewall.\@zone\[2\].masq=0";
system "uci commit";
} else {
print FILE "\n";
print FILE "config 'include'\n";
print FILE " option 'path' '/etc/firewall.dtdlink'\n";
print FILE " option 'reload' '1'\n";
}
if ($cfg{olsrd_gw}) {
print FILE "\nconfig forwarding\n";
print FILE " option src wifi\n";
print FILE " option dest wan\n";
print FILE "\n";
print FILE "\nconfig forwarding\n";
print FILE " option src dtdlink\n";
print FILE " option dest wan\n";
}
foreach(`cat $portfile`)
{
next if /^\s*#/;
next if /^\s*$/;
chomp;
# set dmz server
if(/dmz_ip = (\S+)/ and not $cfg{dmz_mode})
{
print FILE "\nconfig redirect\n\toption src wifi\n\toption proto tcp\n\toption src_dip $cfg{wifi_ip}\n\toption dest_ip $1\n\n";
print FILE "config redirect\n\toption src wifi\n\toption proto udp\n\toption src_dip $cfg{wifi_ip}\n\toption dest_ip $1\n\n";
next;
}
# set port forwarding rule
($intf, $type, $oport, $host, $iport, $enable) = split /[:]/, $_;
next unless $enable;
if($cfg{dmz_mode})
{
next if $intf eq "wifi";
$intf = "wan" if $intf eq "both";
}
$match = "option src_dport $oport\n";
if ($type eq "tcp") { $match .= "option proto tcp\n" }
elsif($type eq "udp") { $match .= "option proto udp\n" }
# uci the host and than
# set the inside port unless the rule uses an outside port range
$host = "option dest_ip $host\n";
$host .="\toption dest_port $iport\n" unless $oport =~ /-/;
if($intf eq "both")
{
print FILE "\nconfig redirect\n\toption src wifi\n\t$match\toption src_dip $cfg{wifi_ip}\n\t$host\n";
print FILE "config redirect\n\toption src wan\n\t$match\t$host\n";
}
elsif($intf eq "wifi")
{
print FILE "config redirect\n\toption src wifi\n\t$match\toption src_dip $cfg{wifi_ip}\n\t$host\n";
}
elsif($intf eq "wan")
{
print FILE "config redirect\n\toption src wan\n\t$match\t$host\n";
}
else
{
print STDERR "ERROR: unknown interface '$intf'\n";
close(FILE);
exit 1;
}
}
close(FILE);
# generate the services file
if($config eq "mesh")
{
$servfile = "/etc/config.$config/_setup.services." . ($cfg{dmz_mode} ? "dmz" : "nat");
open(SERV, ">/etc/config/services") or die;
foreach(`cat $servfile 2>/dev/null`)
{
next if /^\s*#/;
next if /^\s*$/;
chomp;
($name, $link, $proto, $host, $port, $suffix) = split /\|/, $_;
$proto = "http" unless $proto;
$port = 0 unless $link;
$suffix = "" unless $suffix;
next unless defined $name and $name ne "" and defined $host and $host ne "";
printf SERV "%s://%s:%s/%s|%s|%s\n", $proto, $host, $port, $suffix, "tcp", $name;
}
close(SERV);
}
# generate the local config script
open(FILE, ">/etc/local/services") or die;
print FILE "#!/bin/sh\n";
unless($cfg{wifi_proto} eq "disabled")
{
$cfg{wifi_txpower} = wifi_maxpower() if not defined $cfg{wifi_txpower} or $cfg{wifi_txpower} > wifi_maxpower();
$cfg{wifi_txpower} = 1 if $cfg{wifi_txpower} < 1;
if(wifi_useschains()){
print FILE "/usr/local/bin/wifi-onbootchains\n";
}
print FILE "/usr/sbin/iwconfig wlan0 txpower $cfg{wifi_txpower}\n";
if(defined $cfg{aprs_lat} and defined $cfg{aprs_lon})
{
printf FILE "echo %s,%s > /tmp/latlon.txt\n", $cfg{aprs_lat}, $cfg{aprs_lon};
}
if($config eq "mesh")
{
print FILE "/usr/local/bin/olsrd-watchdog &\n";
print FILE "/usr/local/bin/olsrd-namechange-loop &\n";
}
}
close(FILE);
system "chmod +x /etc/local/services";
# generate olsrd.conf
if(-f "/etc/config.$config/olsrd")
{
open(IN, "/etc/config.$config/olsrd") or die;
open(OUT, ">/etc/config/olsrd") or die;
while(defined ($line = <IN>))
{
if($line =~ /<olsrd_bridge>/)
{
if($cfg{olsrd_bridge}) { $line =~ s/<olsrd_bridge>/"wifi" "lan"/ }
else { $line =~ s/<olsrd_bridge>/"lan"/ }
}
elsif(($parm) = $line =~ /^[^\#].*<(\S+)>/)
{
$line =~ s/<$parm>/$cfg{$parm}/;
}
print OUT $line;
}
if($cfg{dmz_mode})
{
print OUT "\n";
print OUT "config Hna4\n";
@parts = split /[.]/, $cfg{dmz_lan_ip};
--$parts[3]; # assume network = lan_ip - 1
print OUT "\toption netaddr ", join(".", @parts),"\n";
print OUT "\toption netmask 255.255.255.", ((0xff << $cfg{dmz_mode}) & 0xff), "\n";
print OUT "\n\n";
}
if($cfg{olsrd_gw})
{
print OUT "config LoadPlugin\n";
print OUT " option library 'olsrd_dyn_gw.so.0.5'\n";
print OUT " option Interval '60'\n";
print OUT " list Ping '71.42.236.91'\n"; # hsmm-mesh.org\n";
print OUT " list Ping '71.42.236.90'\n"; # hsmm-mesh.org\n";
print OUT " list Ping '8.8.8.8'\n"; # google dns\n";
print OUT " list Ping '8.8.4.4'\n"; # google dns\n";
print OUT "\n\n";
}
close(OUT);
close(IN);
}
# indicate whether lan is running in dmz mode
system "echo $cfg{dmz_mode} > /etc/config/dmz-mode" if $cfg{dmz_mode};
# Set chains/antenna config elements as they are no longer in the template files
if(wifi_useschains()){
$cmd .= "uci set wireless.\@wifi-device[0].rxchain=$cfg{wifi_rxant} >/dev/null 2>&1;";
$cmd .= "uci set wireless.\@wifi-device[0].txchain=$cfg{wifi_txant} >/dev/null 2>&1;";
} else {
$cmd .= "uci set wireless.\@wifi-device[0].rxantenna=$cfg{wifi_rxant} >/dev/null 2>&1;";
$cmd .= "uci set wireless.\@wifi-device[0].txantenna=$cfg{wifi_txant} >/dev/null 2>&1;";
}
$cmd .= "uci -q commit;";
system $cmd;
# finish up
unless($auto)
{
print "configuration complete.\n";
print "you should now reboot the router.\n";
if($config eq "client")
{
print "\nCurrent ssid setting in /etc/config/wireless:\n";
system "grep ssid /etc/config/wireless";
print "\n";
}
}
exit 0;
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