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package network; # $Id$
use diagnostics;
use strict;
#-######################################################################################
#- misc imports
#-######################################################################################
use Socket;
use common qw(:common :file :system :functional);
use detect_devices;
use run_program;
use any;
use log;
#-######################################################################################
#- Functions
#-######################################################################################
sub read_conf {
my ($file) = @_;
my %netc = getVarsFromSh($file);
$netc{dnsServer} = delete $netc{NS0};
$netc{dnsServer2} = delete $netc{NS1};
$netc{dnsServer3} = delete $netc{NS2};
\%netc;
}
sub read_resolv_conf {
my ($file) = @_;
my @l = qw(dnsServer dnsServer2 dnsServer3);
my %netc;
local *F; open F, $file or die "cannot open $file: $!";
local $_;
while (<F>) {
/^\s*nameserver\s+(\S+)/ and $netc{shift @l} = $1;
}
\%netc;
}
sub read_interface_conf {
my ($file) = @_;
my %intf = getVarsFromSh($file) or die "cannot open file $file: $!";
$intf{BOOTPROTO} ||= 'static';
$intf{isPtp} = $intf{NETWORK} eq '255.255.255.255';
$intf{isUp} = 1;
\%intf;
}
sub up_it {
my ($prefix, $intfs) = @_;
$_->{isUp} and return foreach values %$intfs;
my $f = "/etc/resolv.conf"; symlink "$prefix/$f", $f;
run_program::rooted($prefix, "/etc/rc.d/init.d/network", "start");
$_->{isUp} = 1 foreach values %$intfs;
}
sub down_it {
my ($prefix, $intfs) = @_;
run_program::rooted($prefix, "/etc/rc.d/init.d/network", "stop");
$_->{isUp} = 1 foreach values %$intfs;
}
sub write_conf {
my ($file, $netc) = @_;
add2hash($netc, {
NETWORKING => "yes",
FORWARD_IPV4 => "false",
HOSTNAME => "localhost.localdomain",
});
($netc->{DOMAINNAME}) = ($netc->{HOSTNAME} =~ /\.(.*)/);
setVarsInSh($file, $netc, qw(NETWORKING FORWARD_IPV4 DHCP_HOSTNAME HOSTNAME DOMAINNAME GATEWAY GATEWAYDEV NISDOMAIN));
}
sub write_resolv_conf {
my ($file, $netc) = @_;
#- get the list of used dns.
my %used_dns; @used_dns{$netc->{dnsServer}, $netc->{dnsServer2}, $netc->{dnsServer3}} = (1, 2, 3);
unless ($netc->{DOMAINNAME} || $netc->{DOMAINNAME2} || keys %used_dns > 0) {
unlink($file);
log::l("neither domain name nor dns server are configured");
return 0;
}
my (%search, %dns, @unknown);
local *F; open F, $file;
local $_;
while (<F>) {
/^[#\s]*search\s+(.*?)\s*$/ and $search{$1} = $., next;
/^[#\s]*nameserver\s+(.*?)\s*$/ and $dns{$1} = $., next;
/^.*# ppp temp entry\s*$/ and next;
/^[#\s]*(\S.*?)\s*$/ and push @unknown, $1;
}
close F; open F, ">$file" or die "cannot write $file: $!";
print F "# search $_\n" foreach grep { $_ ne "$netc->{DOMAINNAME} $netc->{DOMAINNAME2}" } sort { $search{$a} <=> $search{$b} } keys %search;
print F "search $netc->{DOMAINNAME} $netc->{DOMAINNAME2}\n\n" if ($netc->{DOMAINNAME} || $netc->{DOMAINNAME2});
print F "# nameserver $_\n" foreach grep { ! exists $used_dns{$_} } sort { $dns{$a} <=> $dns{$b} } keys %dns;
print F "nameserver $_\n" foreach sort { $used_dns{$a} <=> $used_dns{$b} } grep { $_ } keys %used_dns;
print F "\n";
print F "# $_\n" foreach @unknown;
print F "\n";
print F "# ppp temp entry\n";
#-res_init(); # reinit the resolver so DNS changes take affect
1;
}
sub write_interface_conf {
my ($file, $intf) = @_;
my @ip = split '\.', $intf->{IPADDR};
my @mask = split '\.', $intf->{NETMASK};
add2hash($intf, {
BROADCAST => join('.', mapn { int $_[0] | ~int $_[1] & 255 } \@ip, \@mask),
NETWORK => join('.', mapn { int $_[0] & $_[1] } \@ip, \@mask),
ONBOOT => bool2yesno(!member($intf->{DEVICE}, map { $_->{device} } detect_devices::probeall())),
});
setVarsInSh($file, $intf, qw(DEVICE BOOTPROTO IPADDR NETMASK NETWORK BROADCAST ONBOOT), ($intf->{wireless_eth}) ? qw(WIRELESS_MODE WIRELESS_ESSID WIRELESS_NWID WIRELESS_FREQ WIRELESS_SENS WIRELESS_RATE WIRELESS_ENC_KEY WIRELESS_RTS WIRELESS_FRAG WIRELESS_IWCONFIG WIRELESS_IWSPY WIRELESS_IWPRIV) : ());
}
sub add2hosts {
my ($file, $hostname, @ips) = @_;
my %l;
$l{$_} = $hostname foreach @ips;
local *F;
if (-e $file) {
open F, $file or die "cannot open $file: $!";
/\s*(\S+)(.*)/ and $l{$1} ||= $2 foreach <F>;
}
log::l("writing host information to $file");
open F, ">$file" or die "cannot write $file: $!";
while (my ($ip, $v) = each %l) {
$ip or next;
print F "$ip";
if ($v =~ /^\s/) {
print F $v;
} else {
print F "\t\t$v";
print F " $1" if $v =~ /(.*?)\./;
}
print F "\n";
}
}
# The interface/gateway needs to be configured before this will work!
sub guessHostname {
my ($prefix, $netc, $intf) = @_;
$intf->{isUp} && dnsServers($netc) or return 0;
$netc->{HOSTNAME} && $netc->{DOMAINNAME} and return 1;
write_resolv_conf("$prefix/etc/resolv.conf", $netc);
my $name = gethostbyaddr(Socket::inet_aton($intf->{IPADDR}), AF_INET) or log::l("reverse name lookup failed"), return 0;
log::l("reverse name lookup worked");
add2hash($netc, { HOSTNAME => $name });
1;
}
sub addDefaultRoute {
my ($netc) = @_;
c::addDefaultRoute($netc->{GATEWAY}) if $netc->{GATEWAY};
}
sub sethostname {
my ($netc) = @_;
syscall_('sethostname', $netc->{HOSTNAME}, length $netc->{HOSTNAME}) or log::l("sethostname failed: $!");
}
sub resolv($) {
my ($name) = @_;
is_ip($name) and return $name;
my $a = join(".", unpack "C4", (gethostbyname $name)[4]);
#-log::l("resolved $name in $a");
$a;
}
sub dnsServers {
my ($netc) = @_;
my %used_dns; @used_dns{$netc->{dnsServer}, $netc->{dnsServer2}, $netc->{dnsServer3}} = (1, 2, 3);
sort { $used_dns{$a} <=> $used_dns{$b} } grep { $_ } keys %used_dns;
}
sub findIntf {
my ($intf, $device) = @_;
$intf->{$device} ||= { DEVICE => $device };
}
#PAD \s* a la fin
my $ip_regexp = qr/^(\d{1,3})\.(\d{1,3})\.(\d{1,3})\.(\d{1,3})$/;
sub is_ip {
my ($ip) = @_;
return 0 unless $ip =~ $ip_regexp;
my @fields = ($1, $2, $3, $4);
foreach (@fields) {
return 0 if $_ < 0 || $_ > 255;
}
return 1;
}
sub netmask {
my ($ip) = @_;
return "255.255.255.0" unless is_ip($ip);
$ip =~ $ip_regexp;
if ($1 >= 1 && $1 < 127) {
return "255.0.0.0"; #-1.0.0.0 to 127.0.0.0
} elsif ($1 >= 128 && $1 <= 191 ){
return "255.255.0.0"; #-128.0.0.0 to 191.255.0.0
} elsif ($1 >= 192 && $1 <= 223) {
return "255.255.255.0";
} else {
return "255.255.255.255"; #-experimental classes
}
}
sub masked_ip {
my ($ip) = @_;
return "" unless is_ip($ip);
my @mask = netmask($ip) =~ $ip_regexp;
my @ip = $ip =~ $ip_regexp;
for (my $i = 0; $i < @ip; $i++) {
$ip[$i] &= int $mask[$i];
}
join(".", @ip);
}
sub dns {
my ($ip) = @_;
my $mask = masked_ip($ip);
my @masked = masked_ip($ip) =~ $ip_regexp;
$masked[3] = 2;
join (".", @masked);
}
sub gateway {
my ($ip) = @_;
my @masked = masked_ip($ip) =~ $ip_regexp;
$masked[3] = 1;
join (".", @masked);
}
sub configureNetwork {
my ($prefix, $netc, $in, $intf, $first_time) = @_;
local $_;
any::setup_thiskind($in, 'net', !$::expert, 1);
my @l = detect_devices::getNet() or die _("no network card found");
my @all_cards = netconnect::conf_network_card_backend ($prefix, $netc, $intf, undef, undef, undef, undef);
my $n_card=0;
my $last; foreach ($::expert ? @l : $l[0]) {
my $intf2 = findIntf($intf ||= {}, $_);
add2hash($intf2, $last);
add2hash($intf2, { NETMASK => '255.255.255.0' });
configureNetworkIntf($netc, $in, $intf2, $netc->{NET_DEVICE}, 0, $all_cards[$n_card]->[1]) or last;
$netc ||= {};
$last = $intf2;
$n_card++;
}
#- {
#- my $wait = $o->wait_message(_("Hostname"), _("Determining host name and domain..."));
#- network::guessHostname($o->{prefix}, $o->{netc}, $o->{intf});
#- }
$last or return;
if ($last->{BOOTPROTO} =~ /^(dhcp|bootp)$/) {
$netc->{minus_one} = 1;
my $dhcp_hostname = $netc->{HOSTNAME};
$::isInstall and $in->set_help('configureNetworkHostDHCP');
$in->ask_from_entries_refH(_("Configuring network"),
_("Please enter your host name if you know it.
Some DHCP servers require the hostname to work.
Your host name should be a fully-qualified host name,
such as ``mybox.mylab.myco.com''."),
[ { label => _("Host name"), val => \$netc->{HOSTNAME} }]);
$netc->{HOSTNAME} ne $dhcp_hostname and $netc->{DHCP_HOSTNAME} = $netc->{HOSTNAME};
} else {
configureNetworkNet($in, $netc, $last ||= {}, @l);
if ( $netc->{GATEWAY} ) {
unlink "$prefix/etc/sysconfig/network-scripts/net_cnx_up";
unlink "$prefix/etc/sysconfig/network-scripts/net_cnx_down";
undef $netc->{NET_DEVICE};
}
}
miscellaneousNetwork($in);
}
sub configureNetworkIntf {
my ($netc, $in, $intf, $net_device, $skip, $module) = @_;
my $text;
my @wireless_modules = ("airo_cs", "netwave_cs", "ray_cs", "wavelan_cs", "wvlan_cs");
member($module, @wireless_modules) and $intf->{wireless_eth}=1 and $netc->{wireless_eth}=1;
if ($net_device eq $intf->{DEVICE}) {
$skip and return 1;
$text = _("WARNING: This device has been previously configured to connect to the Internet.
Simply press OK to keep this device configured.
Modifying the fields below will override this configuration.");
}
else {
$text = _("Please enter the IP configuration for this machine.
Each item should be entered as an IP address in dotted-decimal
notation (for example, 1.2.3.4).");
}
my $pump = $intf->{BOOTPROTO} =~ /^(dhcp|bootp)$/;
delete $intf->{NETWORK};
delete $intf->{BROADCAST};
my @fields = qw(IPADDR NETMASK);
$::isStandalone or $in->set_help('configureNetworkIP');
$in->ask_from_entries_refH(_("Configuring network device %s", $intf->{DEVICE}),
($::isStandalone ? '' : _("Configuring network device %s", $intf->{DEVICE}) . ( $module ? _(" (driver $module)") : '' ) ."\n\n") .
$text,
[ { label => _("IP address"), val => \$intf->{IPADDR} },
{ label => _("Netmask"), val => \$intf->{NETMASK} },
{ label => _("Automatic IP"), val => \$pump, type => "bool", text => _("(bootp/dhcp)") },
if_($intf->{wireless_eth},
{ label => "WIRELESS_MODE", val => \$intf->{WIRELESS_MODE}, list => [ "Ad-hoc", "Managed", "Master", "Repeater", "Secondary", "Auto"] },
{ label => "WIRELESS_ESSID", val => \$intf->{WIRELESS_ESSID} },
{ label => "WIRELESS_NWID", val => \$intf->{WIRELESS_NWID} },
{ label => "WIRELESS_FREQ", val => \$intf->{WIRELESS_FREQ} },
{ label => "WIRELESS_SENS", val => \$intf->{WIRELESS_SENS} },
{ label => "WIRELESS_RATE", val => \$intf->{WIRELESS_RATE} },
{ label => "WIRELESS_ENC_KEY", val => \$intf->{WIRELESS_ENC_KEY} },
{ label => "WIRELESS_RTS", val => \$intf->{WIRELESS_RTS} },
{ label => "WIRELESS_FRAG", val => \$intf->{WIRELESS_FRAG} },
{ label => "WIRELESS_IWCONFIG", val => \$intf->{WIRELESS_IWCONFIG} },
{ label => "WIRELESS_IWSPY", val => \$intf->{WIRELESS_IWSPY} },
{ label => "WIRELESS_IWPRIV", val => \$intf->{WIRELESS_IWPRIV} }
),
],
complete => sub {
$intf->{BOOTPROTO} = $pump ? "dhcp" : "static";
return 0 if $pump;
for (my $i = 0; $i < @fields; $i++) {
unless (is_ip($intf->{$fields[$i]})) {
$in->ask_warn('', _("IP address should be in format 1.2.3.4"));
return (1,$i);
}
return 0;
}
if ($intf->{WIRELESS_FREQ} !~ /[0-9.]*[kGM]/) {
$in->ask_warn('', _('Freq should have the suffix k, M or G (for example, "2.46G" for 2.46 GHz fre�
quency), or add enough \'0\'.'));
return (1,6);
}
if ($intf->{WIRELESS_RATE} !~ /[0-9.]*[kGM]/) {
$in->ask_warn('', _('Rate should have the suffix k, M or G (for example, "11M" for 11M), or add enough \'0\'.'));
return (1,8);
}
},
focus_out => sub {
$intf->{NETMASK} ||= netmask($intf->{IPADDR}) unless $_[0]
}
);
}
sub configureNetworkNet {
my ($in, $netc, $intf, @devices) = @_;
$netc->{dnsServer} ||= dns($intf->{IPADDR});
$netc->{GATEWAY} ||= gateway($intf->{IPADDR});
$::isInstall and $in->set_help('configureNetworkHost');
$in->ask_from_entries_refH(_("Configuring network"),
_("Please enter your host name.
Your host name should be a fully-qualified host name,
such as ``mybox.mylab.myco.com''.
You may also enter the IP address of the gateway if you have one"),
[ { label => _("Host name"), val => \$netc->{HOSTNAME} },
{ label => _("DNS server"), val => \$netc->{dnsServer} },
{ label => _("Gateway"), val => \$netc->{GATEWAY} },
if_($::expert,
{ label => _("Gateway device"), val => \$netc->{GATEWAYDEV}, list => \@devices },
),
],
) or return;
}
sub miscellaneousNetwork {
my ($in, $clicked) = @_;
my $u = $::o->{miscellaneous} ||= {};
$::isInstall and $in->set_help('configureNetworkProxy');
$::expert || $clicked and $in->ask_from_entries_refH('',
_("Proxies configuration"),
[ { label => _("HTTP proxy"), val => \$u->{http_proxy} },
{ label => _("FTP proxy"), val => \$u->{ftp_proxy} },
],
complete => sub {
$u->{http_proxy} =~ m,^($|http://), or $in->ask_warn('', _("Proxy should be http://...")), return 1,0;
$u->{ftp_proxy} =~ m,^($|ftp://), or $in->ask_warn('', _("Proxy should be ftp://...")), return 1,1;
0;
}
) || return;
}
sub read_all_conf {
my ($prefix, $netc, $intf) = @_;
$netc ||= {}; $intf ||= {};
add2hash($netc, read_conf("$prefix/etc/sysconfig/network")) if -r "$prefix/etc/sysconfig/network";
add2hash($netc, read_resolv_conf("$prefix/etc/resolv.conf")) if -r "$prefix/etc/resolv.conf";
foreach (all("$prefix/etc/sysconfig/network-scripts")) {
if (/ifcfg-(\w+)/ && $1 ne 'lo' && $1 !~ /ppp/) {
my $intf = findIntf($intf, $1);
add2hash($intf, { getVarsFromSh("$prefix/etc/sysconfig/network-scripts/$_") });
}
}
}
#- configureNetwork2 : configure the network interfaces.
#- input
#- $prefix
#- $netc
#- $intf
#- $install : a function that takes a list of package and install them : ex sub { system("urpmi --auto --best-output " . join(' ', @_)); }
#- $netc input
#- NETWORKING : networking flag : string : "yes" by default
#- FORWARD_IPV4 : forward IP flag : string : "false" by default
#- HOSTNAME : hostname : string : "localhost.localdomain" by default
#- DOMAINNAME : domainname : string : $netc->{HOSTNAME} =~ /\.(.*)/ by default
#- DOMAINNAME2 : well it's another domainname : have to look further why we used 2
#- The following are facultatives
#- DHCP_HOSTNAME : If you have a dhcp and want to set the hostname
#- GATEWAY : gateway
#- GATEWAYDEV : gateway interface
#- NISDOMAIN : nis domain
#- $netc->{dnsServer} : dns server 1
#- $netc->{dnsServer2} : dns server 2
#- $netc->{dnsServer3} : dns server 3 : note that we uses the dns1 for the LAN, and the 2 others for the internet conx
#- $intf input: for each $device (for example ethx)
#- $intf->{$device}{IPADDR} : IP address
#- $intf->{$device}{NETMASK} : netmask
#- $intf->{$device}{DEVICE} : DEVICE = $device
#- $intf->{$device}{BOOTPROTO} : boot prototype : "bootp" or "dhcp" or "pump" or ...
sub configureNetwork2 {
my ($prefix, $netc, $intf, $install) = @_;
my $etc = "$prefix/etc";
$netc->{wireless_eth} and $install->('wireless-tools');
write_conf("$etc/sysconfig/network", $netc);
write_resolv_conf("$etc/resolv.conf", $netc);
write_interface_conf("$etc/sysconfig/network-scripts/ifcfg-$_->{DEVICE}", $_) foreach values %$intf;
add2hosts("$etc/hosts", $netc->{HOSTNAME}, map { $_->{IPADDR} } values %$intf);
sethostname($netc) unless $::testing;
addDefaultRoute($netc) unless $::testing;
grep { $_->{BOOTPROTO} =~ /^(dhcp)$/ } values %$intf and $install && $install->('dhcpcd');
grep { $_->{BOOTPROTO} =~ /^(pump|bootp)$/ } values %$intf and $install && $install->('pump');
#-res_init(); #- reinit the resolver so DNS changes take affect
any::miscellaneousNetwork($prefix);
}
#-######################################################################################
#- Wonderful perl :(
#-######################################################################################
1;
|