package network::network; # $Id$ use diagnostics; use strict; #-###################################################################################### #- misc imports #-###################################################################################### use Socket; use common; use detect_devices; use run_program; use any; use log; use vars qw(@ISA @EXPORT); @ISA = qw(Exporter); @EXPORT = qw(resolv configureNetworkIntf netmask dns is_ip masked_ip findIntf addDefaultRoute all write_interface_conf read_all_conf dnsServers guessHostname configureNetworkNet read_resolv_conf getVarsFromSh read_interface_conf add2hosts gateway configureNetwork2 write_conf sethostname miscellaneousNetwork down_it read_conf write_resolv_conf up_it); #-###################################################################################### #- Functions #-###################################################################################### sub read_conf { my ($file) = @_; my %netc = getVarsFromSh($file); \%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 () { /^\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 $_; while () { /^[#\s]*search\s+(.*?)\s*$/ 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}; my $hwaddr = -e $prefix/sbin/ip ? `LC_ALL= LANG= $prefix/sbin/ip -o link show $intf` : undef; if ($hwaddr) { chomp $hwaddr; $hwaddr =~ s/.*link\/ether\s([0-9a-z:]+)\s.*/$1/; } add2hash($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())), HWADDR => $hwaddr }); setVarsInSh($file, $intf, qw(DEVICE BOOTPROTO IPADDR NETMASK NETWORK BROADCAST ONBOOT HWADDR), ($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 ; } 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; $intf->{$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; $masked[3] = 1; join (".", @masked); } sub configureNetworkIntf { my ($netc, $in, $intf, $net_device, $skip, $module) = @_; my $text; my @wireless_modules = ("airo_cs", "netwave_cs", "ray_cs", "wavelan_cs", "wvlan_cs"); if (member($module, @wireless_modules)) { $intf->{wireless_eth} = 1; $netc->{wireless_eth} = 1; $intf->{WIRELESS_MODE} = "Managed"; $intf->{WIRELESS_ESSID} = "any"; #- $intf->{WIRELESS_NWID} = ""; #- $intf->{WIRELESS_FREQ} = ""; #- $intf->{WIRELESS_SENS} = ""; #- $intf->{WIRELESS_RATE} = ""; #- $intf->{WIRELESS_ENC_KEY} = ""; #- $intf->{WIRELESS_RTS} = ""; #- $intf->{WIRELESS_FRAG} = ""; #- $intf->{WIRELESS_IWCONFIG} = ""; #- $intf->{WIRELESS_IWSPY} = ""; #- $intf->{WIRELESS_IWPRIV} = ""; } if ($net_device eq $intf->{DEVICE}) { $skip and return 1; $text = _("WARNING: This device has been previously configured to connect to the Internet. Simply accept 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(_("Configuring network device %s", $intf->{DEVICE}), (_("Configuring network device %s", $intf->{DEVICE}) . ( $module ? _(" (driver %s)", $module) : '' ) ."\n\n") . $text, [ { label => _("IP address"), val => \$intf->{IPADDR}, disabled => sub { $pump } }, { label => _("Netmask"), val => \$intf->{NETMASK}, disabled => sub { $pump } }, { label => _("Automatic IP"), val => \$pump, type => "bool", text => _("(bootp/dhcp)") }, if_($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]/) { $in->ask_warn('', _('Freq should have the suffix k, M or G (for example, "2.46G" for 2.46 GHz frequency), or add enough \'0\'.')); return (1,6); } if ($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'); $in->ask_from(_("Configuring network"), _("Please enter your host name. Your host name should be a fully-qualified host name, such as ``mybox.mylab.myco.com''. You may also enter the IP address of the gateway if you have one"), [ { label => _("Host name"), val => \$netc->{HOSTNAME} }, { label => _("DNS server"), val => \$netc->{dnsServer} }, { label => _("Gateway"), val => \$netc->{GATEWAY} }, if_($::expert, { label => _("Gateway device"), val => \$netc->{GATEWAYDEV}, list => \@devices }, ), ], ); } sub miscellaneousNetwork { my ($in, $clicked) = @_; my $u = $::o->{miscellaneous} ||= {}; $::isInstall and $in->set_help('configureNetworkProxy'); $::expert || $clicked and $in->ask_from('', _("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 #- $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 ($in, $prefix, $netc, $intf) = @_; my $etc = "$prefix/etc"; $netc->{wireless_eth} and $in->do_pkgs->install('wireless-tools'); write_conf("$etc/sysconfig/network", $netc); write_resolv_conf("$etc/resolv.conf", $netc); write_interface_conf("$etc/sysconfig/network-scripts/ifcfg-$_->{DEVICE}", $_) foreach grep { $_->{DEVICE} } values %$intf; add2hosts("$etc/hosts", $netc->{HOSTNAME}, map { $_->{IPADDR} } values %$intf); if (grep { $_->{BOOTPROTO} =~ /^(dhcp)$/ } values %$intf) { $in->do_pkgs->install('dhcpcd'); } if (grep { $_->{BOOTPROTO} =~ /^(pump|bootp)$/ } values %$intf) { $in->do_pkgs->install('pump'); } #-res_init(); #- reinit the resolver so DNS changes take affect any::miscellaneousNetwork($prefix); } #-###################################################################################### #- Wonderful perl :( #-###################################################################################### 1;