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# redhat-linux-lib.pl
# Networking functions for redhat linux
if ($gconfig{'os_type'} eq 'openmamba-linux') {
# OpenMamba Linux
$net_scripts_dir = "/etc/sysconfig/network-devices";
$devices_dir = "/etc/sysconfig/network-devices";
}
else {
# Redhat, Mandrake, etc..
$net_scripts_dir = "/etc/sysconfig/network-scripts";
$devices_dir = "/etc/sysconfig/networking/devices";
}
$network_config = "/etc/sysconfig/network";
$static_route_config = "/etc/sysconfig/static-routes";
$sysctl_config = "/etc/sysctl.conf";
# Redhat 7.2+ and Mandrake 9.1+ support separate gateways in each interface file
$supports_dev_gateway = ($gconfig{'os_type'} eq 'redhat-linux' &&
$gconfig{'os_version'} >= 7.2) ||
($gconfig{'os_type'} eq 'mandrake-linux' &&
$gconfig{'os_version'} >= 9.1) ||
($gconfig{'os_type'} eq 'coherant-linux' &&
$gconfig{'os_version'} >= 3.0) ||
($gconfig{'os_type'} eq 'trustix-linux');
# Redhat 8.0+ and Mandrake 9.1+ have a separate file for static routes for
# each interface
$supports_dev_routes = ($gconfig{'os_type'} eq 'redhat-linux' &&
$gconfig{'os_version'} >= 8.0) ||
($gconfig{'os_type'} eq 'mandrake-linux' &&
$gconfig{'os_version'} >= 9.1) ||
($gconfig{'os_type'} eq 'coherant-linux' &&
$gconfig{'os_version'} >= 3.0) ||
($gconfig{'os_type'} eq 'trustix-linux');
# Redhat 10 (ES/AS 3) uses route-$dev instead of $dev.route
$supports_route_dev = ($gconfig{'os_type'} eq 'redhat-linux' &&
$gconfig{'os_version'} >= 10.0) ||
($gconfig{'os_type'} eq 'coherant-linux' &&
$gconfig{'os_version'} >= 3.0);
# Redhat 9.0+ uses the ONPARENT variable for virtual interfaces
$uses_on_parent = ($gconfig{'os_type'} eq 'redhat-linux' &&
$gconfig{'os_version'} >= 9.0) ||
($gconfig{'os_type'} eq 'mandrake-linux' &&
$gconfig{'os_version'} >= 9.1) ||
($gconfig{'os_type'} eq 'coherant-linux' &&
$gconfig{'os_version'} >= 3.0);
# Redhat versions 7.2 and above allow the MTU to be set at boot time
$supports_mtu = ($gconfig{'os_type'} eq 'redhat-linux' &&
$gconfig{'os_version'} >= 7.2) ||
($gconfig{'os_type'} eq 'coherant-linux' &&
$gconfig{'os_version'} >= 3.0);
do 'linux-lib.pl';
# boot_interfaces()
# Returns a list of interfaces brought up at boot time
sub boot_interfaces
{
local (@rv, $f);
local %bridge_map;
opendir(CONF, &translate_filename($net_scripts_dir));
while($f = readdir(CONF)) {
local (%conf, $b);
if ($f =~ /^ifcfg-([a-z0-9:\.]+)\-range([a-z0-9\.\_]+)$/) {
# A range of addresses
&read_env_file("$net_scripts_dir/$f", \%conf);
$b->{'fullname'} = "$1-range$2";
$b->{'name'} = $1;
$b->{'range'} = $2;
$b->{'start'} = $conf{'IPADDR_START'};
$b->{'end'} = $conf{'IPADDR_END'};
$b->{'num'} = $conf{'CLONENUM_START'};
$b->{'up'} = 1;
$b->{'edit'} = 1;
$b->{'desc'} = $conf{'NAME'};
$b->{'index'} = scalar(@rv);
$b->{'file'} = "$net_scripts_dir/$f";
push(@rv, $b);
}
elsif ($f !~ /\.(bak|old)$/i && $f =~ /^ifcfg-([a-z0-9:\.]+)$/) {
# Normal interface
&read_env_file("$net_scripts_dir/$f", \%conf);
$b->{'fullname'} = $conf{'DEVICE'} || $1;
if ($b->{'fullname'} =~ /(\S+):(\d+)/) {
$b->{'name'} = $1;
$b->{'virtual'} = $2;
}
else { $b->{'name'} = $b->{'fullname'}; }
if ($b->{'fullname'} =~ /(\S+)\.(\d+)/) {
my ($k, $v) = split(/\./, $b->{'fullname'});
$b->{'physical'} = $k;
$b->{'vlanid'} = $v;
$b->{'vlan'} = 1;
}
$b->{'up'} = defined($conf{'ONPARENT'}) &&
$b->{'virtual'} ne '' ?
($conf{'ONPARENT'} eq 'yes') :
($conf{'ONBOOT'} eq 'yes');
$b->{'address'} = $conf{'IPADDR'};
$b->{'netmask'} = $conf{'NETMASK'};
if (!$conf{'NETMASK'} && $conf{'PREFIX'}) {
$b->{'netmask'} = &prefix_to_mask($conf{'PREFIX'});
}
$b->{'broadcast'} = $conf{'BROADCAST'};
if (!$b->{'broadcast'} && $b->{'address'} && $b->{'netmask'}) {
$b->{'broadcast'} = &compute_broadcast($b->{'address'},
$b->{'netmask'});
}
$b->{'gateway'} = $conf{'GATEWAY'};
$b->{'gateway6'} = $conf{'IPV6_DEFAULTGW'};
$b->{'mtu'} = $conf{'MTU'};
$b->{'partner'} = &get_teaming_partner($conf{'DEVICE'});
my @values = split(/\s+/, $conf{'BONDING_OPTS'});
foreach my $val (@values) {
my ($k, $v) = split(/=/, $val, 2);
if ($k eq "mode") {
$b->{'mode'} = $v;
}
elsif ($k eq "miimon") {
$b->{'miimon'} = $v;
}
elsif ($k eq "updelay") {
$b->{'updelay'} = $v;
}
elsif ($k eq "downdelay") {
$b->{'downdelay'} = $v;
}
}
$b->{'ether'} = $conf{'MACADDR'};
$b->{'dhcp'} = ($conf{'BOOTPROTO'} eq 'dhcp');
$b->{'bootp'} = ($conf{'BOOTPROTO'} eq 'bootp');
local @ip6s;
push(@ip6s, [ split(/\//, $conf{'IPV6ADDR'}) ])
if ($conf{'IPV6ADDR'});
push(@ip6s, map { [ split(/\//, $_) ] }
split(/\s+/, $conf{'IPV6ADDR_SECONDARIES'}));
if (@ip6s) {
# Static IPv6 addresses
$b->{'address6'} = [ map { $_->[0] } @ip6s ];
$b->{'netmask6'} = [ map { $_->[1] } @ip6s ];
}
elsif (lc($conf{'IPV6INIT'}) eq 'yes') {
$b->{'auto6'} = 1;
}
$b->{'edit'} = ($b->{'name'} !~ /^ppp|irlan/);
$b->{'desc'} = $conf{'NAME'};
$b->{'index'} = scalar(@rv);
$b->{'file'} = "$net_scripts_dir/$f";
if ($conf{'BRIDGE'}) {
$bridge_map{$conf{'BRIDGE'}} = $b->{'fullname'};
}
push(@rv, $b);
}
}
closedir(CONF);
foreach my $b (@rv) {
if ($b->{'fullname'} =~ /^br\d+$/) {
$b->{'bridge'} = 1;
$b->{'bridgeto'} = $bridge_map{$b->{'fullname'}};
}
}
return @rv;
}
# save_bond_interface(device, master)
# Create or update a boot-time bond slave interface
sub save_bond_interface
{
local(%conf);
&lock_file("$net_scripts_dir/ifcfg-$_[0]");
$conf{'DEVICE'} = $_[0];
$conf{'BOOTPROTO'} = none;
$conf{'ONBOOT'} = yes;
$conf{'MASTER'} = $_[1];
$conf{'SLAVE'} = "yes";
$conf{'USERCTL'} = "no";
&write_env_file("$net_scripts_dir/ifcfg-$_[0]", \%conf);
&unlock_file("$net_scripts_dir/ifcfg-$_[0]");
}
# save_interface(&details)
# Create or update a boot-time interface
sub save_interface
{
local(%conf);
local $name = $_[0]->{'range'} ne "" ? $_[0]->{'name'}."-range".$_[0]->{'range'} :
$_[0]->{'virtual'} ne "" ? $_[0]->{'name'}.":".$_[0]->{'virtual'} :
$_[0]->{'vlanid'} ne "" ? $_[0]->{'physical'}.".".$_[0]->{'vlanid'}
: $_[0]->{'name'};
&lock_file("$net_scripts_dir/ifcfg-$name");
&read_env_file("$net_scripts_dir/ifcfg-$name", \%conf);
if ($_[0]->{'range'} ne "") {
# Special case - saving a range
$conf{'IPADDR_START'} = $_[0]->{'start'};
$conf{'IPADDR_END'} = $_[0]->{'end'};
$conf{'CLONENUM_START'} = $_[0]->{'num'};
}
else {
# Saving a normal interface
$conf{'DEVICE'} = $name;
$conf{'IPADDR'} = $_[0]->{'address'};
$conf{'NETMASK'} = $_[0]->{'netmask'};
delete($conf{'PREFIX'});
if ($_[0]->{'address'} && $_[0]->{'netmask'}) {
$conf{'NETWORK'} = &compute_network($_[0]->{'address'},
$_[0]->{'netmask'});
}
else {
$conf{'NETWORK'} = '';
}
$conf{'BROADCAST'} = $_[0]->{'broadcast'};
if ($_[0]->{'gateway'}) {
$conf{'GATEWAY'} = $_[0]->{'gateway'};
}
else {
delete($conf{'GATEWAY'});
}
if ($_[0]->{'gateway6'}) {
$conf{'IPV6_DEFAULTGW'} = $_[0]->{'gateway6'};
}
else {
delete($conf{'IPV6_DEFAULTGW'});
}
$conf{'MTU'} = $_[0]->{'mtu'};
$conf{'MACADDR'} = $_[0]->{'ether'};
$conf{'ONBOOT'} = $_[0]->{'up'} ? "yes" : "no";
$conf{'ONPARENT'} = $_[0]->{'up'} ? "yes" : "no"
if ($_[0]->{'virtual'} ne '');
$conf{'BOOTPROTO'} = $_[0]->{'bootp'} ? "bootp" :
$_[0]->{'dhcp'} ? "dhcp" : "none";
delete($conf{'IPV6ADDR'});
delete($conf{'IPV6ADDR_SECONDARIES'});
local @ip6s;
for(my $i=0; $i<@{$b->{'address6'}}; $i++) {
push(@ip6s, $b->{'address6'}->[$i]."/".
$b->{'netmask6'}->[$i]);
}
if ((@ip6s || $b->{'auto6'}) && lc($conf{'IPV6INIT'}) ne 'yes') {
$conf{'IPV6INIT'} = 'yes';
}
elsif (!@ip6s && !$b->{'auto6'}) {
$conf{'IPV6INIT'} = 'no';
}
if (@ip6s) {
$conf{'IPV6ADDR'} = shift(@ip6s);
$conf{'IPV6ADDR_SECONDARIES'} = join(" ", @ip6s);
}
if ($_[0]->{'fullname'} =~ /^br(\d+)$/) {
&has_command("brctl") ||
&error("Bridges cannot be created unless the brctl ".
"command is installed");
$conf{'TYPE'} = 'Bridge';
}
if ($_[0]->{'fullname'} =~ /^bond(\d+)$/) {
$conf{'BONDING_OPTS'} = "mode=$_[0]->{'mode'}";
if ($_[0]->{'miimon'}) {
$conf{'BONDING_OPTS'} .= " miimon=$_[0]->{'miimon'}";
}
if ($_[0]->{'updelay'}) {
$conf{'BONDING_OPTS'} .= " updelay=$_[0]->{'updelay'}";
}
if ($_[0]->{'downdelay'}) {
$conf{'BONDING_OPTS'} .= " downdelay=$_[0]->{'downdelay'}";
}
my @values = split(/\s+/, $_[0]->{'partner'});
foreach my $val (@values) {
&save_bond_interface($val, $_[0]->{'fullname'});
}
}
if ($_[0]->{'vlan'} == 1) {
$conf{'VLAN'} = "yes";
}
}
$conf{'NAME'} = $_[0]->{'desc'};
&write_env_file("$net_scripts_dir/ifcfg-$name", \%conf);
# If this is a bridge, set BRIDGE in real interface
if ($_[0]->{'bridge'}) {
foreach my $efile (glob("$net_scripts_dir/ifcfg-eth*"),
glob("$net_scripts_dir/ifcfg-em*")) {
local %bconf;
&lock_file($efile);
&read_env_file($efile, \%bconf);
if ($bconf{'DEVICE'} eq $_[0]->{'bridgeto'} &&
$_[0]->{'bridgeto'}) {
# Correct device for bridge
$bconf{'BRIDGE'} = $_[0]->{'fullname'};
&write_env_file($efile, \%bconf);
}
elsif ($bconf{'BRIDGE'} eq $_[0]->{'fullname'} &&
$bconf{'BRIDGE'}) {
# Was using this bridge, shouldn't be
delete($bconf{'BRIDGE'});
&write_env_file($efile, \%bconf);
}
&unlock_file($efile);
}
}
# Link to devices directory
if (-d &translate_filename($devices_dir)) {
&link_file("$net_scripts_dir/ifcfg-$name",
"$devices_dir/ifcfg-$name");
}
&unlock_file("$net_scripts_dir/ifcfg-$name");
# Make sure IPv6 is enabled globally
if (@{$b->{'address6'}}) {
local %conf;
&lock_file($network_config);
&read_env_file($network_config, \%conf);
if (lc($conf{'NETWORKING_IPV6'}) ne 'yes') {
$conf{'NETWORKING_IPV6'} = 'yes';
&write_env_file($network_config, \%conf);
}
&unlock_file($network_config);
}
}
# delete_interface(&details)
# Delete a boot-time interface
sub delete_interface
{
local $name = $_[0]->{'range'} ne "" ? $_[0]->{'name'}."-range".
$_[0]->{'range'} :
$_[0]->{'virtual'} ne "" ? $_[0]->{'name'}.":".$_[0]->{'virtual'}
: $_[0]->{'name'};
&lock_file("$net_scripts_dir/ifcfg-$name");
&unlink_file("$net_scripts_dir/ifcfg-$name");
if (-d &translate_filename($devices_dir)) {
&unlink_file("$devices_dir/ifcfg-$name");
}
&unlock_file("$net_scripts_dir/ifcfg-$name");
}
# can_edit(what)
# Can some boot-time interface parameter be edited?
sub can_edit
{
if ($supports_mtu) {
return 1;
}
else {
return $_[0] ne "mtu";
}
}
# valid_boot_address(address)
# Is some address valid for a bootup interface
sub valid_boot_address
{
return &check_ipaddress($_[0]);
}
# get_hostname()
sub get_hostname
{
local %conf;
&read_env_file($network_config, \%conf);
if ($conf{'HOSTNAME'}) {
return $conf{'HOSTNAME'};
}
return &get_system_hostname(1);
}
# save_hostname(name)
sub save_hostname
{
local $old = &get_hostname();
local %conf;
&system_logged("hostname $_[0] >/dev/null 2>&1");
&open_lock_tempfile(HOST, ">/etc/HOSTNAME");
&print_tempfile(HOST, $_[0],"\n");
&close_tempfile(HOST);
&lock_file($network_config);
&read_env_file($network_config, \%conf);
$conf{'HOSTNAME'} = $_[0];
&write_env_file($network_config, \%conf);
&unlock_file($network_config);
# If any ifcfg-XXX files have the old hostname in DHCP_HOSTNAME, fix it
foreach my $b (&boot_interfaces()) {
local %ifc;
&read_env_file($b->{'file'}, \%ifc);
if ($ifc{'DHCP_HOSTNAME'} eq $old) {
$ifc{'DHCP_HOSTNAME'} = $_[0];
&lock_file($b->{'file'});
&write_env_file($b->{'file'}, \%ifc);
&unlock_file($b->{'file'});
}
}
undef(@main::get_system_hostname); # clear cache
}
# get_domainname()
sub get_domainname
{
local $d;
&execute_command("domainname", undef, \$d, undef);
chop($d);
return $d;
}
# save_domainname(domain)
sub save_domainname
{
local %conf;
&execute_command("domainname ".quotemeta($_[0]));
&read_env_file($network_config, \%conf);
if ($_[0]) {
$conf{'NISDOMAIN'} = $_[0];
}
else {
delete($conf{'NISDOMAIN'});
}
&write_env_file($network_config, \%conf);
}
sub routing_config_files
{
local @rv = ( $network_config, $sysctl_config );
if (!$supports_dev_routes) {
push(@rv, $static_route_config);
}
else {
foreach my $dir ($devices_dir, $net_scripts_dir) {
opendir(DIR, &translate_filename($dir));
while(my $f = readdir(DIR)) {
if ($f =~ /^([a-z]+\d*(\.\d+)?(:\d+)?)\.route$/ ||
$f =~ /^route\-([a-z]+\d*(\.\d+)?(:\d+)?)$/) {
push(@rv, "$dir/$f");
}
}
closedir(DIR);
}
}
return @rv;
}
sub network_config_files
{
return ( "/etc/HOSTNAME", $network_config );
}
sub routing_input
{
local (%conf, @st, @hr, %sysctl);
&read_env_file($network_config, \%conf);
if (!$supports_dev_gateway) {
# show default router and device
print &ui_table_row($text{'routes_default'},
&ui_opt_textbox("gateway", $conf{'GATEWAY'}, 15,
$text{'routes_none'}));
print &ui_table_row($text{'routes_device2'},
&ui_opt_textbox("gatewaydev", $conf{'GATEWAYDEV'}, 6,
$text{'routes_none'}));
}
else {
# multiple default routers can exist, one per interface
my @table;
local $r = 0;
if ($conf{'GATEWAY'} || $conf{'IPV6_DEFAULTGW'}) {
push(@table, [
&interface_sel("gatewaydev$r",
$conf{'GATEWAYDEV'} ||
$conf{'IPV6_DEFAULTDEV'} || "*"),
&ui_textbox("gateway$r", $conf{'GATEWAY'}, 15),
&ui_textbox("gateway6$r", $conf{'IPV6_DEFAULTGW'}, 30),
]);
$r++;
}
local @boot = &boot_interfaces();
foreach $b (grep { $_->{'gateway'} && $_->{'virtual'} eq '' } @boot) {
push(@table, [ &interface_sel("gatewaydev$r", $b->{'name'}),
&ui_textbox("gateway$r", $b->{'gateway'}, 15),
&ui_textbox("gateway6$r", $b->{'gateway6'}, 30),
]);
$r++;
}
push(@table, [ &interface_sel("gatewaydev$r"),
&ui_textbox("gateway$r", undef, 15),
&ui_textbox("gateway6$r", undef, 30), ]);
print &ui_table_row($text{'routes_default2'},
&ui_columns_table(
[ $text{'routes_ifc'}, $text{'routes_gateway'},
$text{'routes_gateway6'} ],
undef, \@table, undef, 1));
}
# show routing
if ($gconfig{'os_version'} < 7.0) {
print &ui_table_row($text{'routes_forward'},
&ui_yesno_radio("forward",
$conf{'FORWARD_IPV4'} eq "yes" ? 1 : 0));
}
else {
&read_env_file($sysctl_config, \%sysctl);
print &ui_table_row($text{'routes_forward'},
&ui_yesno_radio("forward",
$sysctl{'net.ipv4.ip_forward'} ? 1 : 0));
}
if (!$supports_dev_routes) {
# get static routes from single file
&open_readfile(STATIC, $static_route_config);
while(<STATIC>) {
if (/(\S+)\s+net\s+(\S+)\s+netmask\s+(\S+)\s+gw\s+(\S+)/) {
push(@st, [ $1, $2, $3, $4 ]);
}
elsif (/(\S+)\s+host\s+(\S+)\s+gw\s+(\S+)/) {
push(@st, [ $1, $2, '255.255.255.255', $3 ]);
}
elsif (/(\S+)\s+net\s+(\S+)\s+netmask\s+(\S+)/) {
push(@hr, [ $1, $2, $3 ]);
}
elsif (/(\S+)\s+host\s+(\S+)/) {
push(@hr, [ $1, $2, '255.255.255.255' ]);
}
}
close(STATIC);
}
else {
# get static routes from per-interface files
local $f;
opendir(DIR, &translate_filename($devices_dir));
while($f = readdir(DIR)) {
if ($f =~ /^([a-z]+\d*(\.\d+)?(:\d+)?)\.route$/ ||
$f =~ /^route\-([a-z]+\d*(\.\d+)?(:\d+)?)$/) {
local $dev = $1;
local (%rfile, $i);
&read_env_file("$devices_dir/$f", \%rfile);
for($i=0; defined($rfile{"ADDRESS$i"}); $i++) {
if ($rfile{"GATEWAY$i"}) {
push(@st, [ $dev, $rfile{"ADDRESS$i"},
$rfile{"NETMASK$i"},
$rfile{"GATEWAY$i"}]);
}
else {
push(@hr, [ $dev, $rfile{"ADDRESS$i"},
$rfile{"NETMASK$i"} ||
"255.255.255.255" ]);
}
}
}
}
closedir(DIR);
}
# Show static network routes
my @table;
for($i=0; $i<=@st; $i++) {
local $st = $st[$i];
push(@table, [ &ui_textbox("dev_$i", $st->[0], 6),
&ui_textbox("net_$i", $st->[1], 15),
&ui_textbox("netmask_$i", $st->[2], 15),
&ui_textbox("gw_$i", $st->[3], 15) ]);
}
print &ui_table_row($text{'routes_static'},
&ui_columns_table([ $text{'routes_ifc'}, $text{'routes_net'},
$text{'routes_mask'}, $text{'routes_gateway'} ],
undef, \@table, undef, 1));
# Show static host routes
my @table;
for($i=0; $i<=@hr; $i++) {
local $st = $hr[$i];
push(@table, [ &ui_textbox("ldev_$i", $st->[0], 6),
&ui_textbox("lnet_$i", $st->[1], 15),
&ui_textbox("lnetmask_$i", $st->[2], 15) ]);
}
print &ui_table_row($text{'routes_local'},
&ui_columns_table([ $text{'routes_ifc'}, $text{'routes_net'},
$text{'routes_mask'} ],
undef, \@table, undef, 1));
}
sub parse_routing
{
local (%conf, @st, %sysctl, %st, @boot);
&lock_file($network_config);
&read_env_file($network_config, \%conf);
if (!$supports_dev_gateway) {
# Just update a single file
if ($in{'gateway_def'}) { delete($conf{'GATEWAY'}); }
elsif (!&to_ipaddress($in{'gateway'})) {
&error(&text('routes_edefault', $in{'gateway'}));
}
else { $conf{'GATEWAY'} = $in{'gateway'}; }
if ($in{'gatewaydev_def'}) { delete($conf{'GATEWAYDEV'}); }
elsif ($in{'gatewaydev'} !~ /^\S+$/) {
&error(&text('routes_edevice', $in{'gatewaydev'}));
}
else { $conf{'GATEWAYDEV'} = $in{'gatewaydev'}; }
}
else {
# Multiple defaults can be specified!
local ($r, $b);
@boot = grep { $->{'virtual'} eq '' } &boot_interfaces();
foreach $b (@boot) {
delete($b->{'gateway'});
}
delete($conf{'GATEWAY'});
delete($conf{'GATEWAYDEV'});
delete($conf{'IPV6_DEFAULTDEV'});
delete($conf{'IPV6_DEFAULTGW'});
for($r=0; defined($in{"gatewaydev$r"}); $r++) {
next if (!$in{"gatewaydev$r"});
&check_ipaddress($in{"gateway$r"}) ||
&error(&text('routes_edefault2', $r+1));
if ($in{"gatewaydev$r"} eq "*") {
# For any interface
$conf{'GATEWAY'} && &error(&text('routes_eclash'));
$conf{'GATEWAY'} = $in{"gateway$r"};
$conf{'IPV6_DEFAULTGW'} &&
&error(&text('routes_eclash6'));
$conf{'IPV6_DEFAULTGW'} = $in{"gateway6$r"};
}
else {
# For a specific interface
local ($b) = grep { $_->{'fullname'} eq
$in{"gatewaydev$r"} } @boot;
$b->{'gateway'} && &error(&text('routes_eclash2',
$in{"gatewaydev$r"}));
$b->{'gateway'} = $in{"gateway$r"};
$b->{'gateway6'} = $in{"gateway6$r"};
}
}
}
if ($gconfig{'os_version'} < 7.0) {
if ($in{'forward'}) { $conf{'FORWARD_IPV4'} = 'yes'; }
else { $conf{'FORWARD_IPV4'} = 'no'; }
}
else {
&lock_file($sysctl_config);
&read_env_file($sysctl_config, \%sysctl);
$sysctl{'net.ipv4.ip_forward'} = $in{'forward'};
}
# Parse static and local routes
for($i=0; defined($dev = $in{"dev_$i"}); $i++) {
next if (!$dev);
$net = $in{"net_$i"}; $netmask = $in{"netmask_$i"}; $gw = $in{"gw_$i"};
$dev =~ /^\S+$/ || &error(&text('routes_edevice', $dev));
&to_ipaddress($net) || &error(&text('routes_enet', $net));
&check_ipaddress($netmask) || &error(&text('routes_emask', $netmask));
&to_ipaddress($gw) || &error(&text('routes_egateway', $gw));
if ($netmask eq "255.255.255.255") {
push(@st, "$dev host $net gw $gw\n");
}
else {
push(@st, "$dev net $net netmask $netmask gw $gw\n");
}
push(@{$st{$dev}}, [ $net, $netmask, $gw ]);
}
for($i=0; defined($dev = $in{"ldev_$i"}); $i++) {
$net = $in{"lnet_$i"}; $netmask = $in{"lnetmask_$i"};
next if (!$dev && !$net);
$dev =~ /^\S+$/ || &error(&text('routes_edevice', $dev));
&to_ipaddress($net) ||
$net =~ /^(\S+)\/(\d+)$/ && &to_ipaddress("$1") ||
&error(&text('routes_enet', $net));
&check_ipaddress($netmask) || &error(&text('routes_emask', $netmask));
if ($netmask eq "255.255.255.255") {
push(@st, "$dev host $net\n");
}
else {
push(@st, "$dev net $net netmask $netmask\n");
}
push(@{$st{$dev}}, [ $net, $netmask ]);
}
if (!$supports_dev_routes) {
# Write to a single file
&open_lock_tempfile(STATIC, ">$static_route_config");
&print_tempfile(STATIC, @st);
&close_tempfile(STATIC);
}
else {
# Write to one file per interface (delete old, then save new/updated)
local $f;
opendir(DIR, &translate_filename($devices_dir));
while($f = readdir(DIR)) {
if (($f =~ /^([a-z]+\d*(\.\d+)?(:\d+)?)\.route$/ ||
$f =~ /^route\-([a-z]+\d*(\.\d+)?(:\d+)?)$/) && !$st{$1}) {
&unlink_logged("$devices_dir/$f");
&unlink_logged("$net_scripts_dir/$f");
}
}
closedir(DIR);
foreach $dev (keys %st) {
$f = $supports_route_dev ? "route-$dev" : "$dev.route";
local (%rfile, $i);
for($i=0; $i<@{$st{$dev}}; $i++) {
$rfile{"ADDRESS$i"} = $st{$dev}->[$i]->[0];
$rfile{"NETMASK$i"} = $st{$dev}->[$i]->[1];
$rfile{"GATEWAY$i"} = $st{$dev}->[$i]->[2];
}
&lock_file("$devices_dir/$f");
&write_env_file("$devices_dir/$f", \%rfile);
&unlock_file("$devices_dir/$f");
&lock_file("$net_scripts_dir/$f");
&link_file("$devices_dir/$f", "$net_scripts_dir/$f");
&unlock_file("$net_scripts_dir/$f");
}
}
&write_env_file($network_config, \%conf);
&unlock_file($network_config);
if (%sysctl) {
&write_env_file($sysctl_config, \%sysctl);
&unlock_file($sysctl_config);
}
if (@boot) {
local $b;
foreach $b (@boot) {
&save_interface($b);
}
}
}
sub os_feedback_files
{
opendir(DIR, $net_scripts_dir);
local @f = readdir(DIR);
closedir(DIR);
return ( (map { "$net_scripts_dir/$_" } grep { /^ifcfg-/ } @f),
$network_config, $static_route_config, "/etc/resolv.conf",
"/etc/nsswitch.conf", "/etc/HOSTNAME" );
}
# interface_sel(name, value)
# Returns a menu for all boot-time interfaces
sub interface_sel
{
local $rv = "<select name=$_[0]>\n";
$rv .= sprintf "<option value='' %s> \n",
$_[1] eq "" ? "selected" : "";
$rv .= sprintf "<option value='*' %s>%s\n",
$_[1] eq "*" ? "selected" : "", $text{'routes_any'};
@boot_interfaces_cache = &boot_interfaces() if (!@boot_interfaces_cache);
foreach $b (@boot_interfaces_cache) {
next if ($b->{'virtual'} ne '');
$rv .= sprintf "<option value=%s %s>%s\n",
$b->{'name'}, $b->{'name'} eq $_[1] ? "selected" : "", $b->{'name'};
}
$rv .= "</select>\n";
return $rv;
}
# apply_network()
# Apply the interface and routing settings
sub apply_network
{
if ($gconfig{'os_type'} eq 'mandrake-linux') {
&system_logged("(cd / ; service network stop ; service network start) >/dev/null 2>&1");
}
else {
&system_logged("(cd / ; /etc/init.d/network stop ; /etc/init.d/network start) >/dev/null 2>&1");
}
}
# apply_interface(&iface)
# Calls an OS-specific function to make a boot-time interface active
sub apply_interface
{
local $out = &backquote_logged("cd / ; ifdown '$_[0]->{'fullname'}' >/dev/null 2>&1 </dev/null ; ifup '$_[0]->{'fullname'}' 2>&1 </dev/null");
return $? || $out =~ /error/i ? $out : undef;
}
# unapply_interface(&iface)
# Calls an OS-specific function to make a boot-time interface inactive
#sub unapply_interface
#{
#local $out = &backquote_logged("cd / ; ifdown '$_[0]->{'fullname'}' 2>&1 </dev/null");
#return $? ? $out : undef;
#}
# get_default_gateway()
# Returns the default gateway IP (if one is set) and device (if set) boot time
# settings.
sub get_default_gateway
{
local %conf;
&read_env_file($network_config, \%conf);
local @boot = &boot_interfaces();
local ($gifc) = grep { $_->{'gateway'} && $_->{'virtual'} eq '' } @boot;
return ( $gifc->{'gateway'}, $gifc->{'fullname'} ) if ($gifc);
return $conf{'GATEWAY'} ? ( $conf{'GATEWAY'}, $conf{'GATEWAYDEV'} ) : ( );
}
# set_default_gateway(gateway, device)
# Sets the default gateway to the given IP accessible via the given device,
# in the boot time settings.
sub set_default_gateway
{
&lock_file($network_config);
&read_env_file($network_config, \%conf);
if (!$supports_dev_gateway) {
# Just update the network config file
local %conf;
if ($_[0]) {
$conf{'GATEWAY'} = $_[0];
$conf{'GATEWAYDEV'} = $_[1];
}
else {
delete($conf{'GATEWAY'});
delete($conf{'GATEWAYDEV'});
}
}
else {
# Set the gateway in the specified interface file, and clear the rest
local @boot = grep { $->{'virtual'} eq '' } &boot_interfaces();
foreach $b (@boot) {
delete($b->{'gateway'});
if ($_[0] && $b->{'fullname'} eq $_[1]) {
$b->{'gateway'} = $_[0];
&save_interface($b);
}
}
delete($conf{'GATEWAY'});
delete($conf{'GATEWAYDEV'});
}
&write_env_file($network_config, \%conf);
&unlock_file($network_config);
}
# get_default_ipv6_gateway()
# Returns the default gateway IPv6 address (if one is set) and device (if set)
# boot time settings.
sub get_default_ipv6_gateway
{
local %conf;
&read_env_file($network_config, \%conf);
local @boot = &boot_interfaces();
local ($gifc) = grep { $_->{'gateway6'} && $_->{'virtual'} eq '' } @boot;
return ( $gifc->{'gateway6'}, $gifc->{'fullname'} ) if ($gifc);
return $conf{'IPV6_DEFAULTGW'} ? ( $conf{'IPV6_DEFAULTGW'},
$conf{'IPV6_DEFAULTDEV'} ) : ( );
}
# set_default_ipv6_gateway(gateway, device)
# Sets the default gateway to the given IPv6 address accessible via the given
# device, in the boot time settings.
sub set_default_ipv6_gateway
{
&lock_file($network_config);
&read_env_file($network_config, \%conf);
local @boot = grep { $->{'virtual'} eq '' } &boot_interfaces();
foreach $b (@boot) {
delete($b->{'gateway6'});
if ($_[0] && $b->{'fullname'} eq $_[1]) {
$b->{'gateway6'} = $_[0];
&save_interface($b);
}
}
delete($conf{'IPV6_DEFAULTGW'});
delete($conf{'IPV6_DEFAULTDEV'});
&write_env_file($network_config, \%conf);
&unlock_file($network_config);
}
# supports_ranges()
# Returns 1 for newer redhat versions
sub supports_ranges
{
return ($gconfig{'os_type'} eq 'redhat-linux' &&
$gconfig{'os_version'} >= 7.3) ||
($gconfig{'os_type'} eq 'mandrake-linux' &&
$gconfig{'os_version'} >= 8.0) ||
($gconfig{'os_type'} eq 'coherant-linux' &&
$gconfig{'os_version'} >= 3.0);
}
sub supports_bonding
{
return $gconfig{'os_type'} eq 'redhat-linux' &&
$gconfig{'os_version'} >= 13.0 &&
&has_command("ifenslave");
}
sub supports_vlans
{
return $gconfig{'os_type'} eq 'redhat-linux' &&
$gconfig{'os_version'} >= 13.0 &&
&has_command("vconfig");
}
# range_input([&interface])
# Print HTML for a IP range interface
sub range_input
{
local $new = !$_[0];
# Range description
print &ui_table_row($text{'ifcs_desc'},
&ui_textbox("desc", $_[0] ? $_[0]->{'desc'} : undef, 60));
# Base interface
my $ifaceinput;
if ($new) {
$ifaceinput = &ui_select("iface", $_[0]->{'name'},
[ map { $_->{'fullname'} } grep { $b->{'virtual'} eq '' }
&boot_interfaces() ]);
}
else {
$ifaceinput = "<tt>$_[0]->{'name'}</tt>";
}
print &ui_table_row($text{'range_iface'}, $ifaceinput);
# Name for this range
print &ui_table_row($text{'range_name'},
$new ? &ui_textbox("range", undef, 10)
: "<tt>$_[0]->{'range'}</tt>");
# Start
print &ui_table_row($text{'range_start'},
&ui_textbox("start", $_[0]->{'start'}, 15));
# Stop
print &ui_table_row($text{'range_end'},
&ui_textbox("end", $_[0]->{'end'}, 15));
# Base number
print &ui_table_row($text{'range_num'},
&ui_textbox("num", $_[0]->{'num'}, 5));
}
# parse_range(&range, &in)
sub parse_range
{
local %in = %{$_[1]};
if ($in{'new'}) {
$_[0]->{'name'} = $in{'iface'};
$in{'range'} =~ /^[a-z0-9\.\_]+$/ || &error($text{'range_ename'});
$_[0]->{'range'} = $in{'range'};
$_[0]->{'fullname'} = $in{'iface'}."-range".$in{'range'};
}
$_[0]->{'desc'} = $in{'desc'};
&check_ipaddress($in{'start'}) || &error($text{'range_estart'});
$_[0]->{'start'} = $in{'start'};
&check_ipaddress($in{'end'}) || &error($text{'range_eend'});
$_[0]->{'end'} = $in{'end'};
local @sip = split(/\./, $in{'start'});
local @eip = split(/\./, $in{'end'});
$sip[0] == $eip[0] && $sip[1] == $eip[1] && $sip[2] == $eip[2] ||
&error($text{'range_eclass'});
$sip[3] <= $eip[3] || &error($text{'range_ebefore'});
$in{'num'} =~ /^\d+$/ || &error($text{'range_enum'});
$_[0]->{'num'} = $in{'num'};
}
# get_dhcp_hostname()
# Returns 0 if the hostname is not set by DHCP, 1 if it is, or -1 if this
# feature is not supported on this OS.
sub get_dhcp_hostname
{
return -1 if ($gconfig{'os_type'} ne 'redhat-linux' ||
$gconfig{'os_version'} < 11);
local @boot = &boot_interfaces();
local ($eth) = grep { $_->{'fullname'} =~ /^(eth|em)\d+$/ } @boot;
return -1 if (!$eth);
local %eth;
&read_env_file($eth->{'file'}, \%eth);
return $eth{'DHCP_HOSTNAME'} ne &get_system_hostname();
}
# save_dhcp_hostname(set)
# If called with a parameter of 0, the hostname is fixed and not set by
# DHCP. If called with 1, the hostname is chosen by DHCP.
sub save_dhcp_hostname
{
}
# get_teaming_partner(devicename)
# Gets the teamingpartners of a configured bond interface
sub get_teaming_partner
{
local ($g, $return);
opendir(CONF2, &translate_filename($net_scripts_dir));
while($g = readdir(CONF2)) {
local %conf2;
if ($g !~ /\.(bak|old)$/i && $g =~ /^ifcfg-([a-z0-9:\.]+)$/) {
&read_env_file("$net_scripts_dir/$g", \%conf2);
if ($conf2{'MASTER'} eq "$_[0]") {
$return .= $conf2{'DEVICE'}." ";
}
}
}
return $return;
}
sub boot_iface_hardware
{
return $_[0] =~ /^(eth|em)/;
}
# supports_address6([&iface])
# Returns 1 if managing IPv6 interfaces is supported
sub supports_address6
{
local ($iface) = @_;
return !$iface || $iface->{'virtual'} eq '';
}
# Returns 1, as boot-time interfaces on Redhat can exist without an IP (such as
# for bridging)
sub supports_no_address
{
return 1;
}
# Bridge interfaces can be created on redhat
sub supports_bridges
{
return 1;
}
1;
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