mirror of
https://github.com/webmin/webmin.git
synced 2026-06-28 06:50:25 +01:00
7ebe3f7dfa
This PR adds dhcpcd backend support for Debian and Raspberry Pi OS network configuration. It detects dhcpcd only as a final fallback after Netplan, NetworkManager, and ifupdown, preventing Webmin from incorrectly falling back to `/etc/network/interfaces` on dhcpcd-managed systems. The new backend reads and writes `/etc/dhcpcd.conf`, including DHCP and static IPv4/IPv6 configuration, gateways, static routes, DNS servers, search domains, MTU, and virtual IPv4 aliases. It also supports implicit DHCP-managed interfaces for default dhcpcd setups with no explicit interface blocks, and handles `allowinterfaces` / `denyinterfaces` behavior. This PR also fixes apply/delete flows for dhcpcd-managed interfaces and virtual aliases, avoids rewriting generated `/etc/resolv.conf`, preserves spacing/comments in touched hosts and nsswitch files, and tightens Active Now handling so virtual aliases are treated as IP addresses rather than independent links. https://github.com/webmin/webmin/issues/1607
1034 lines
29 KiB
Perl
Executable File
1034 lines
29 KiB
Perl
Executable File
# linux-lib.pl
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# Active interface functions for all flavours of linux
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# active_interfaces([include-no-ipv4-address])
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# Returns a list of currently ifconfig'd interfaces
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sub active_interfaces
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{
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local ($empty) = @_;
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my @rv;
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my $ethtool = &has_command("ethtool");
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if (&has_command("ip")) {
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# Get status from new ip command
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&clean_language();
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&open_execute_command(IFC, "ip addr", 1, 1);
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my @lines;
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while(<IFC>) {
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s/\r|\n//g;
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if (/^\S+/) { push(@lines, $_); }
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else { $lines[$#lines] .= $_; }
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}
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close(IFC);
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&reset_environment();
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foreach my $l (@lines) {
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my %ifc;
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my $iface_name = $ifc{'name'};
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my $iface_auto_ip;
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if ($l =~ /^\d+:\s+([^ \t\r\n\@]+\d+\.(\d+))@([^ \t\r\n\@]+\d+):/) {
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# Line like :
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# 3: eth0.99@eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default qlen 1000
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$ifc{'fullname'} = $1;
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$ifc{'name'} = $ifc{'fullname'};
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$ifc{'vlanid'} = $2;
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$ifc{'virtual'} = $3;
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}
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elsif ($l =~ /^\d+:\s+([^ \t\r\n\@]+):/) {
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# Line like :
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# 2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP group default qlen 1000
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$ifc{'fullname'} = $1;
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$ifc{'name'} = $ifc{'fullname'}
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}
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elsif ($l =~ /^\d+:\s+([^ \t\r\n\@]+\d+)@([^ \t\r\n\@]+\d+):/) {
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# Line like :
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# 3: eth0@if0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default qlen 1000
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$ifc{'fullname'} = $1;
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$ifc{'name'} = $ifc{'fullname'};
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$ifc{'ifname'} = $2;
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}
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else {
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# Unknown line!
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next;
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}
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if ($l =~ /\sinet\s+([0-9\.]+)\s+peer\s+([0-9\.]+)\/(\d+)(\s+brd\s+([0-9\.]+))?\s+scope\s+global(\s+(noprefixroute|dynamic))*\s+(\Q$iface_name\E)/) {
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# Line like :
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# inet 193.9.101.120 peer 193.9.101.104/32 brd 193.9.101.120 scope global eth0
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$ifc{'address'} = $1;
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$ifc{'netmask'} = &prefix_to_mask("$3");
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}
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elsif ($l =~ /\sinet\s+([0-9\.]+)\/(\d+)\s+(?:metric\s+\d+\s+|)brd\s+(\S+)\s+scope\s+global(?:\s+secondary|)\s(dynamic)\s+.*?(\Q$iface_name\E)/) {
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# Line like :
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# inet 193.9.101.120/24 brd 193.9.101.255 scope global secondary dynamic br0
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# inet 10.211.55.81/24 metric 100 brd 10.211.55.255 scope global secondary dynamic enp0s5
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# inet 10.211.55.65/24 brd 10.211.55.255 scope global secondary dynamic noprefixroute enp0s5
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# inet 10.211.55.10/24 brd 10.211.55.255 scope global dynamic enp0s5
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$iface_auto_ip = $1;
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$ifc{'address'} = $1;
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$ifc{'netmask'} = &prefix_to_mask("$2");
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}
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elsif ($l =~ /\sinet\s+([0-9\.]+)\/(\d+)(\s+metric\s+\d+)?(\s+brd\s+(\S+))?\s+scope\s+global(\s+(noprefixroute|secondary))*\s+(\Q$iface_name\E)/) {
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# Line like :
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# inet 193.9.101.120/24 brd 193.9.101.255 scope global br0
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$ifc{'address'} = $1;
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$ifc{'netmask'} = &prefix_to_mask("$2");
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}
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elsif ($l =~ /\sinet\s+([0-9\.]+)\s+peer\s+([0-9\.]+)\/(\d+)/) {
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# Line like :
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# inet 46.4.13.87 peer 46.4.13.65/32
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$ifc{'address'} = $1;
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$ifc{'netmask'} = &prefix_to_mask("$3");
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}
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elsif ($l =~ /\sinet\s+([0-9\.]+)\/(\d+)(\s+brd\s+(\S+))?\s+scope\s+host\s+(\Q$iface_name\E)/) {
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# Line like :
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# inet 127.0.0.1/8 scope host lo
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$ifc{'address'} = $1;
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$ifc{'netmask'} = &prefix_to_mask("$2");
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}
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if ($l =~ /\sbrd\s+([0-9\.]+)/) {
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$ifc{'broadcast'} = $1;
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}
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if ($l =~ /\smtu\s+(\d+)/) {
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$ifc{'mtu'} = $1;
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}
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if ($l =~ /ether\s+([0-9a-f:]+)/i) {
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$ifc{'ether'} = $1;
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}
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my (@address6, @netmask6, @scope6);
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while($l =~ s/inet6\s+(\S+)\/(\d+)\s+scope\s+(\S+)//i) {
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local ($address6, $netmask6, $scope6) = ($1, $2, $3);
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push(@address6, $address6);
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push(@netmask6, $netmask6);
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push(@scope6, $scope6);
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}
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$ifc{'address6'} = \@address6;
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$ifc{'netmask6'} = \@netmask6;
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$ifc{'scope6'} = \@scope6;
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$ifc{'up'}++ if ($l =~ /\sUP\s|<\S*UP\S*>/);
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$ifc{'promisc'}++ if ($l =~ /\sPROMISC\s/);
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$ifc{'edit'} = ($ifc{'name'} !~ /^ppp/);
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$ifc{'index'} = scalar(@rv);
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push(@rv, \%ifc);
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# Strip off the line for the primary IP, but only if there is one
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if ($ifc{'address'}) {
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$l =~ s/\sinet\s+([0-9\.]+)\s+peer//;
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if ($l =~ /\sinet\s+([0-9\.]+)\/(\d+)/) {
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# If primary IP equals dynamic or no
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# dynamic IP is found stirp it off
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if (!$iface_auto_ip || $iface_auto_ip eq $1) {
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$l =~ s/\sinet\s+([0-9\.]+)\/(\d+)//;
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}
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# Just strip off dynamic from the list
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elsif ($iface_auto_ip) {
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$l =~ s/\sinet\s+(\Q$iface_auto_ip\E)\/(\d+)//;
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}
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}
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}
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# Add extra IPs as fake virtual interfaces, from lines like
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my $i = 0;
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my $bn = $ifc{'name'};
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while($l =~ s/\sinet\s+([0-9\.]+)\/(\d+).*?\s\Q$bn\E:(\d+)// ||
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$l =~ s/\sinet\s+([0-9\.]+)\/(\d+).*?(?:secondary|dynamic|global).*?\s\Q$bn\E//) {
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my %vifc;
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my $vn = defined($3) ? $3 : $i;
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$vifc{'name'} = $ifc{'name'};
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$vifc{'fullname'} = $ifc{'name'}.":".$vn;
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$vifc{'address'} = $1;
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$vifc{'netmask'} = &prefix_to_mask("$2");
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$vifc{'broadcast'} = &compute_broadcast(
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$vifc{'address'}, $vifc{'netmask'});
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$vifc{'mtu'} = $ifc{'mtu'};
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$vifc{'up'} = $ifc{'up'};
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$vifc{'virtual'} = $vn;
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$vifc{'edit'} = ($vifc{'name'} !~ /^ppp/);
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$vifc{'index'} = scalar(@rv);
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push(@rv, \%vifc);
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$i = $vn + 1;
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}
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}
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}
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elsif (&has_command("ifconfig")) {
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&clean_language();
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&open_execute_command(IFC, "ifconfig -a", 1, 1);
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my @lines;
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while(<IFC>) {
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s/\r|\n//g;
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if (/^\S+/) { push(@lines, $_); }
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else { $lines[$#lines] .= $_; }
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}
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close(IFC);
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&reset_environment();
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foreach my $l (@lines) {
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my %ifc;
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$l =~ /^([^:\s]+)/ || next;
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$ifc{'name'} = $1;
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$l =~ /^(\S+)/;
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$ifc{'fullname'} = $1;
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$ifc{'fullname'} =~ s/:$//;
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if ($l =~ /^(\S+):(\d+)/) { $ifc{'virtual'} = $2; }
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if ($l =~ /^(\S+)\.(\d+)/) { $ifc{'vlanid'} = $2; }
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if ($l =~ /inet addr:(\S+)/) { $ifc{'address'} = $1; }
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elsif ($l =~ /inet (\S+)/) { $ifc{'address'} = $1; }
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elsif (!$empty) { next; }
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if ($l =~ /Mask:(\S+)/) { $ifc{'netmask'} = $1; }
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elsif ($l =~ /netmask (\S+)/) { $ifc{'netmask'} = $1; }
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if ($l =~ /Bcast:(\S+)/) { $ifc{'broadcast'} = $1; }
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elsif ($l =~ /broadcast (\S+)/) { $ifc{'broadcast'} = $1; }
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if ($l =~ /HWaddr (\S+)/) { $ifc{'ether'} = $1; }
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elsif ($l =~ /ether (\S+)/) { $ifc{'ether'} = $1; }
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if ($l =~ /MTU:(\d+)/) { $ifc{'mtu'} = $1; }
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elsif ($l =~ /mtu (\d+)/) { $ifc{'mtu'} = $1; }
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if ($l =~ /P-t-P:(\S+)/) { $ifc{'ptp'} = $1; }
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elsif ($l =~ /ptp (\S+)/) { $ifc{'ptp'} = $1; }
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$ifc{'up'}++ if ($l =~ /\sUP\s|<\S*UP\S*>/);
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$ifc{'promisc'}++ if ($l =~ /\sPROMISC\s/);
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my (@address6, @netmask6, @scope6);
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while($l =~ s/inet6 addr:\s*(\S+)\/(\d+)\s+Scope:(Global)//i) {
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local ($address6, $netmask6, $scope6) = ($1, $2, $3);
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push(@address6, $address6);
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push(@netmask6, $netmask6);
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push(@scope6, $scope6);
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}
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while($l =~ s/inet6 (\S+)\s+prefixlen (\d+)\s+scopeid\s+(\S+)<global>//i) {
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local ($address6, $netmask6, $scope6) = ($1, $2, $3);
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push(@address6, $address6);
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push(@netmask6, $netmask6);
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push(@scope6, $scope6);
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}
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$ifc{'address6'} = \@address6;
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$ifc{'netmask6'} = \@netmask6;
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$ifc{'scope6'} = \@scope6;
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$ifc{'edit'} = ($ifc{'name'} !~ /^ppp/);
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$ifc{'index'} = scalar(@rv);
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push(@rv, \%ifc);
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}
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}
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else {
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&error("Both the ifconfig and ip commands are missing");
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}
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foreach my $ifc (@rv) {
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# For each ethernet interface, merge in data from ethtool
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if (&iface_type($ifc->{'fullname'}) eq 'Ethernet' &&
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$ifc->{'virtual'} eq '' && $ethtool) {
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my $out = &backquote_command(
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"$ethtool $ifc->{'fullname'} 2>/dev/null");
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if ($out =~ /Speed:\s+(\S+)/i && $1 ne "Unknown!") {
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$ifc->{'speed'} = $1;
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}
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if ($out =~ /Duplex:\s+(\S+)/i && $1 ne "Unknown!") {
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$ifc->{'duplex'} = $1;
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}
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if ($out =~ /Link\s+detected:\s+(\S+)/i) {
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$ifc->{'link'} = lc($1) eq 'yes' ? 1 : 0;
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}
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}
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}
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return @rv;
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}
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# activate_interface(&details)
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# Create or modify an interface
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sub activate_interface
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{
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my ($a) = @_;
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my ($old) = grep { $_->{'fullname'} eq $a->{'fullname'} } &active_interfaces();
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# For Debian 5.0+ the "vconfig add" command is deprecated, this is handled
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# by ifup.
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if(($a->{'vlan'} == 1) && !(($gconfig{'os_type'} eq 'debian-linux') && ($gconfig{'os_version'} >= 5))) {
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local $vconfigCMD = "vconfig add " .
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quotemeta($a->{'physical'})." ".
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quotemeta($a->{'vlanid'});
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local $vconfigout = &backquote_logged("$vconfigCMD 2>&1");
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if ($?) { &error($vonconfigout); }
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}
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if (&has_command("ip") && $a->{'virtual'} ne '' && !$a->{'up'}) {
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# Linux virtual aliases are addresses, not independent links.
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&deactivate_interface($old) if ($old && $old->{'address'});
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return;
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}
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if (!&has_command("ifconfig") && &has_command("ip")) {
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# For a real interface, activate or de-activate the link
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if ($a->{'virtual'} eq '' && $a->{'up'} && (!$old || !$old->{'up'})) {
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# Bring up
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my $cmd = "ip link set dev ".quotemeta($a->{'name'})." up";
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my $out = &backquote_logged("$cmd 2>&1");
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&error("Failed to bring up link : $out") if ($?);
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}
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elsif ($a->{'virtual'} eq '' && !$a->{'up'} && $old && $old->{'up'}) {
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# Take down
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my $cmd = "ip link set dev ".quotemeta($a->{'name'})." down";
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my $out = &backquote_logged("$cmd 2>&1");
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&error("Failed to bring down link : $out") if ($?);
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}
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}
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my $cmd;
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if (&has_command("ip")) {
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# If the IP is changing, first remove it then re-add
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my $readd = 0;
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if ($old && $old->{'address'}) {
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if ($old->{'address'} ne $a->{'address'} ||
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$old->{'netmask'} ne $a->{'netmask'}) {
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my $rcmd = "ip addr del ".quotemeta($old->{'address'}).
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"/".&mask_to_prefix($old->{'netmask'}).
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" dev ".quotemeta($a->{'name'});
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&system_logged("$rcmd >/dev/null 2>&1");
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$readd = 1;
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}
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}
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else {
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$readd = 1;
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}
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# Build ip command to add the new IP
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if ($readd && $a->{'address'}) {
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$cmd .= "ip addr add ".quotemeta($a->{'address'});
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if ($a->{'netmask'}) {
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$cmd .= "/".&mask_to_prefix($a->{'netmask'});
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}
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if ($a->{'broadcast'}) {
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$cmd .= " broadcast ".quotemeta($a->{'broadcast'});
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}
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if($a->{'vlan'} == 1) {
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$cmd .= " dev ".quotemeta($a->{'physical'}).".".
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quotemeta($a->{'vlanid'});
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}
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else {
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$cmd .= " dev ".quotemeta($a->{'name'});
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}
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}
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}
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elsif (&use_ifup_command($a)) {
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# Use Debian / Redhat ifup command
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if($a->{'vlan'} == 1) {
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# Name and fullname for VLAN tagged interfaces are "auto" so
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# we need to ifup using physical and vlanid.
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if ($a->{'up'}) {
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if(($a->{'mtu'}) && (($gconfig{'os_type'} eq 'redhat-linux') && ($gconfig{'os_version'} >= 13))) {
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my $cmd2 = "ifconfig ".quotemeta($a->{'physical'})." mtu ".quotemeta($a->{'mtu'});
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my $out = &backquote_logged("$cmd2 2>&1");
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if ($?) { &error($out); }
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}
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$cmd .= "ifup ".quotemeta($a->{'physical'}).".".
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quotemeta($a->{'vlanid'});
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}
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else {
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$cmd .= "ifdown ".quotemeta($a->{'physical'}).".".
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quotemeta($a->{'vlanid'});
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}
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}
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elsif ($a->{'up'}) {
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$cmd .= "ifdown ".quotemeta($a->{'fullname'}).
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"; ifup ".quotemeta($a->{'fullname'});
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}
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else {
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$cmd .= "ifdown ".quotemeta($a->{'fullname'});
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}
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}
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elsif (&has_command("ifconfig")) {
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# Build ifconfig command manually
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if($a->{'vlan'} == 1) {
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$cmd .= "ifconfig ".quotemeta($a->{'physical'}).".".
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quotemeta($a->{'vlanid'});
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}
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else {
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$cmd .= "ifconfig ".quotemeta($a->{'name'});
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if ($a->{'virtual'} ne "") {
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$cmd .= ":".quotemeta($a->{'virtual'});
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}
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}
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$cmd .= " ".quotemeta($a->{'address'});
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if ($a->{'netmask'}) {
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$cmd .= " netmask ".quotemeta($a->{'netmask'});
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}
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if ($a->{'broadcast'}) {
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$cmd .= " broadcast ".quotemeta($a->{'broadcast'});
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}
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if ($a->{'mtu'} && $a->{'virtual'} eq "") {
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$cmd .= " mtu ".quotemeta($a->{'mtu'});
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}
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if ($a->{'up'}) {
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$cmd .= " up";
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}
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else {
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$cmd .= " down";
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}
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}
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else {
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&error("Both the ifconfig and ip commands are missing");
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}
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my $out = &backquote_logged("cd / ; $cmd 2>&1");
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if ($?) { &error("$cmd failed : $out"); }
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# Apply ethernet address
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if ($a->{'ether'} && !&use_ifup_command($a) && &has_command("ifconfig")) {
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# With ifconfig command
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$out = &backquote_logged("ifconfig ".quotemeta($a->{'name'}).
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" hw ether ".quotemeta($a->{'ether'})." 2>&1");
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if ($?) { &error($out); }
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}
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elsif ($a->{'ether'} && !&use_ifup_command($a) && &has_command("ip")) {
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# With ip link command
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$out = &backquote_logged("ip link set dev ".quotemeta($a->{'name'}).
|
|
" address ".quotemeta($a->{'ether'})." 2>&1");
|
|
if ($?) { &error($out); }
|
|
}
|
|
|
|
# Apply MTU
|
|
if ($a->{'mtu'} && !&use_ifup_command($a) && &has_command("ip")) {
|
|
$out = &backquote_logged(
|
|
"ip link set dev ".quotemeta($a->{'name'})." mtu ".
|
|
quotemeta($a->{'mtu'})." 2>&1");
|
|
if ($?) { &error($out); }
|
|
}
|
|
|
|
if ($a->{'virtual'} eq '' && &has_command("ifconfig")) {
|
|
# Remove old IPv6 addresses
|
|
local $l = &backquote_command("ifconfig ".quotemeta($a->{'name'}));
|
|
while($l =~ s/inet6 addr:\s*(\S+)\/(\d+)\s+Scope:(\S+)// ||
|
|
$l =~ s/inet6\s+(\S+)\s+prefixlen\s+(\d+)\s+scopeid\s+\S+//) {
|
|
my $cmd = "ifconfig ".quotemeta($a->{'name'})." inet6 del ".
|
|
quotemeta("$1/$2")." 2>&1";
|
|
$out = &backquote_logged($cmd);
|
|
&error("Failed to remove old IPv6 address : $out") if ($?);
|
|
}
|
|
|
|
# Add IPv6 addresses
|
|
for(my $i=0; $i<@{$a->{'address6'}}; $i++) {
|
|
my $cmd = "ifconfig ".quotemeta($a->{'name'})." inet6 add ".
|
|
quotemeta($a->{'address6'}->[$i])."/".
|
|
quotemeta($a->{'netmask6'}->[$i])." 2>&1";
|
|
$out = &backquote_logged($cmd);
|
|
&error("Failed to add IPv6 address with $cmd : $out") if ($?);
|
|
}
|
|
}
|
|
elsif ($a->{'virtual'} eq '' && &has_command("ip")) {
|
|
# Remove old IPv6 addresses
|
|
if ($old) {
|
|
for(my $i=0; $i<@{$old->{'address6'}}; $i++) {
|
|
my $cmd = "ip -6 addr del ".
|
|
quotemeta($old->{'address6'}->[$i])."/".
|
|
quotemeta($old->{'netmask6'}->[$i])." dev ".
|
|
quotemeta($a->{'name'});
|
|
$out = &backquote_logged("$cmd 2>&1");
|
|
&error("Failed to remove old IPv6 address : $out") if ($?);
|
|
}
|
|
}
|
|
|
|
# Add IPv6 addresses
|
|
for(my $i=0; $i<@{$a->{'address6'}}; $i++) {
|
|
my $cmd = "ip -6 addr add ".
|
|
quotemeta($a->{'address6'}->[$i])."/".
|
|
quotemeta($a->{'netmask6'}->[$i])." dev ".
|
|
quotemeta($a->{'name'});
|
|
$out = &backquote_logged("$cmd 2>&1");
|
|
&error("Failed to add IPv6 address with $cmd : $out") if ($?);
|
|
}
|
|
}
|
|
|
|
}
|
|
|
|
# deactivate_interface(&details)
|
|
# Shutdown some active interface
|
|
sub deactivate_interface
|
|
{
|
|
my ($a) = @_;
|
|
if (&has_command("ip")) {
|
|
# Use new ip command to remove all IPs
|
|
my @del;
|
|
if ($a->{'address'}) {
|
|
push(@del, $a->{'address'}."/".
|
|
&mask_to_prefix($a->{'netmask'}));
|
|
}
|
|
for(my $i=0; $i<@{$a->{'address6'}}; $i++) {
|
|
push(@del, $a->{'address6'}->[$i]."/".
|
|
$a->{'netmask6'}->[$i]);
|
|
}
|
|
foreach my $d (@del) {
|
|
my $cmd = "ip addr del ".quotemeta($d)." dev ".
|
|
quotemeta($a->{'name'});
|
|
my $out = &backquote_logged("$cmd 2>&1");
|
|
&error("Failed to remove old address : $out") if ($?);
|
|
}
|
|
|
|
if ($a->{'virtual'} eq '') {
|
|
my $cmd = "ip link set dev ".quotemeta($a->{'name'})." down";
|
|
my $out = &backquote_logged("$cmd 2>&1");
|
|
&error("<pre>".&html_escape($out)."</pre>") if ($?);
|
|
}
|
|
}
|
|
elsif (&has_command("ifconfig")) {
|
|
# Use old ifconfig command
|
|
my $name = $a->{'name'}.
|
|
($a->{'virtual'} ne "" ? ":$a->{'virtual'}" : "");
|
|
my $address = $a->{'address'}.
|
|
($a->{'virtual'} ne "" ? ":$a->{'virtual'}" : "");
|
|
my $netmask = $a->{'netmask'};
|
|
|
|
if ($a->{'virtual'} ne "") {
|
|
# Shutdown virtual interface by setting address to 0
|
|
&system_logged("ifconfig $name 0 >/dev/null 2>&1");
|
|
}
|
|
# Delete all v6 addresses
|
|
for(my $i=0; $i<@{$a->{'address6'}}; $i++) {
|
|
my $cmd = "ifconfig ".quotemeta($a->{'name'})." inet6 del ".
|
|
quotemeta($a->{'address6'}->[$i])."/".
|
|
quotemeta($a->{'netmask6'}->[$i]);
|
|
&backquote_logged("$cmd 2>&1");
|
|
}
|
|
|
|
# Check if still up somehow
|
|
my ($still) = grep { $_->{'fullname'} eq $name } &active_interfaces();
|
|
if ($still) {
|
|
# Old version of ifconfig or non-virtual interface.. down it
|
|
my $out;
|
|
if (&use_ifup_command($a)) {
|
|
$out = &backquote_logged(
|
|
"ifdown ".quotemeta($name)." 2>&1");
|
|
}
|
|
else {
|
|
$out = &backquote_logged(
|
|
"ifconfig ".quotemeta($name)." down 2>&1");
|
|
}
|
|
my ($still) = grep { $_->{'fullname'} eq $name }
|
|
&active_interfaces();
|
|
if ($still && $still->{'up'}) {
|
|
&error($out ? "<pre>".&html_escape($out)."</pre>"
|
|
: "Interface is still active even after ".
|
|
"being shut down");
|
|
}
|
|
if (&iface_type($name) =~ /^(.*) (VLAN)$/) {
|
|
$out = &backquote_logged(
|
|
"vconfig rem ".quotemeta($name)." 2>&1");
|
|
}
|
|
}
|
|
}
|
|
else {
|
|
&error("Both the ifconfig and ip commands are missing");
|
|
}
|
|
}
|
|
|
|
# use_ifup_command(&iface)
|
|
# Returns 1 if the ifup command must be used to bring up some interface.
|
|
# True on Debian 5.0+ for non-ethernet, typically bonding and VLAN tagged interfaces.
|
|
sub use_ifup_command
|
|
{
|
|
local ($iface) = @_;
|
|
return &has_command("ifup") &&
|
|
($gconfig{'os_type'} eq 'debian-linux' &&
|
|
$gconfig{'os_version'} >= 5 ||
|
|
$gconfig{'os_type'} eq 'redhat-linux' &&
|
|
$gconfig{'os_version'} >= 13) &&
|
|
($iface->{'name'} !~ /^(eth|em|eno|ens|enp|enx|enX|lo|br)/ ||
|
|
$iface->{'name'} =~ /^(\S+)\.(\d+)/) &&
|
|
$iface->{'virtual'} eq '';
|
|
}
|
|
|
|
# iface_type(name)
|
|
# Returns a human-readable interface type name
|
|
sub iface_type
|
|
{
|
|
my ($name) = @_;
|
|
if ($name =~ /^(.*)\.(\d+)$/) {
|
|
return &iface_type("$1")." VLAN";
|
|
}
|
|
return "PPP" if ($name =~ /^ppp/);
|
|
return "SLIP" if ($name =~ /^sl/);
|
|
return "PLIP" if ($name =~ /^plip/);
|
|
return "Ethernet" if ($name =~ /^eth|em|eno|ens|enp|enx|enX|p\d+p\d+|vtnet/);
|
|
return "Wireless Ethernet" if ($name =~ /^(wlan|ath)/);
|
|
return "Arcnet" if ($name =~ /^arc/);
|
|
return "Token Ring" if ($name =~ /^tr/);
|
|
return "Pocket/ATP" if ($name =~ /^atp/);
|
|
return "Loopback" if ($name =~ /^lo/);
|
|
return "ISDN rawIP" if ($name =~ /^isdn/);
|
|
return "ISDN syncPPP" if ($name =~ /^ippp/);
|
|
return "CIPE" if ($name =~ /^cip/);
|
|
return "VmWare" if ($name =~ /^vmnet/);
|
|
return "Wireless" if ($name =~ /^wlan/);
|
|
return "Bonded" if ($name =~ /^bond/);
|
|
return "OpenVZ" if ($name =~ /^venet/);
|
|
return "Bridge" if ($name =~ /^(br|xenbr|virbr)/);
|
|
return $text{'ifcs_unknown'};
|
|
}
|
|
|
|
# list_routes()
|
|
# Returns a list of active routes
|
|
sub list_routes
|
|
{
|
|
local @rv;
|
|
if (&has_command("netstat")) {
|
|
# Use old netstat command if installed
|
|
&open_execute_command(ROUTES, "netstat -rn", 1, 1);
|
|
while(<ROUTES>) {
|
|
s/\s+$//;
|
|
if (/^([0-9\.]+)\s+([0-9\.]+)\s+([0-9\.]+)\s+\S+\s+\S+\s+\S+\s*\S+\s+(\S+)$/) {
|
|
push(@rv, { 'dest' => $1,
|
|
'gateway' => $2,
|
|
'netmask' => $3,
|
|
'iface' => $4 });
|
|
}
|
|
}
|
|
close(ROUTES);
|
|
&open_execute_command(ROUTES, "netstat -rn -A inet6", 1, 1);
|
|
while(<ROUTES>) {
|
|
s/\s+$//;
|
|
if (/^([0-9a-z:]+)\/([0-9]+)\s+([0-9a-z:]+)\s+\S+\s+\S+\s+\S+\s*\S+\s+(\S+)$/) {
|
|
push(@rv, { 'dest' => $1,
|
|
'gateway' => $3,
|
|
'netmask' => $2,
|
|
'iface' => $4 });
|
|
}
|
|
}
|
|
close(ROUTES);
|
|
}
|
|
elsif (&has_command("ip")) {
|
|
# Use new ip command
|
|
&open_execute_command(ROUTES, "ip route", 1, 1);
|
|
while(<ROUTES>) {
|
|
s/\r|\n//g;
|
|
if (/^(\S+)\s+/) {
|
|
my $r = { 'dest' => $1 };
|
|
if ($r->{'dest'} =~ /^(\S+)\/(\d+)/) {
|
|
$r->{'dest'} = $1;
|
|
$r->{'netmask'} = &prefix_to_mask("$2");
|
|
}
|
|
if (/\sdev\s+(\S+)/) {
|
|
$r->{'iface'} = $1;
|
|
}
|
|
if (/\svia\s+(\S+)/) {
|
|
$r->{'gateway'} = $1;
|
|
}
|
|
push(@rv, $r);
|
|
}
|
|
}
|
|
close(ROUTES);
|
|
}
|
|
else {
|
|
&error("Both the ip and netstat commands are missing!");
|
|
}
|
|
return @rv;
|
|
}
|
|
|
|
# load_module(&details)
|
|
# Load or modify a loaded module
|
|
sub load_module
|
|
{
|
|
local $a = $_[0];
|
|
local $cmd = "modprobe bonding";
|
|
|
|
if ($a->{'mode'}) {
|
|
$cmd .= " mode=".quotemeta($a->{'mode'});
|
|
}
|
|
if ($a->{'miimon'}) {
|
|
$cmd .= " miimon=".quotemeta($a->{'miimon'});
|
|
}
|
|
if ($a->{'downdelay'}) {
|
|
$cmd .= " downdelay=".quotemeta($a->{'downdelay'});
|
|
}
|
|
if ($a->{'updelay'}) {
|
|
$cmd .= " updelay=".quotemeta($a->{'updelay'});
|
|
}
|
|
|
|
local $out = &backquote_logged("$cmd 2>&1");
|
|
&error($out) if ($?);
|
|
}
|
|
|
|
# Tries to unload the module
|
|
# unload_module(name)
|
|
sub unload_module
|
|
{
|
|
my ($name) = @_;
|
|
my $cmd = "modprobe -r bonding";
|
|
local $out = &backquote_logged("$cmd 2>&1");
|
|
&error($out) if ($?);
|
|
}
|
|
|
|
# list_interfaces()
|
|
# Returns a list of active interface names
|
|
sub list_interfaces
|
|
{
|
|
my @ret;
|
|
$cmd = "ifconfig -a";
|
|
local $out = &backquote_logged("$cmd 2>&1");
|
|
&error($out) if ($?);
|
|
|
|
my @lines = split("\n", $out);
|
|
foreach my $line (@lines) {
|
|
$line =~ /^([\w|.]*)/m;
|
|
if ($1) {
|
|
push(@ret, $1);
|
|
}
|
|
}
|
|
return @ret;
|
|
}
|
|
|
|
# delete_route(&route)
|
|
# Delete one active route, as returned by list_routes. Returns an error message
|
|
# on failure, or undef on success
|
|
sub delete_route
|
|
{
|
|
my ($route) = @_;
|
|
my $cmd;
|
|
my $proto = &check_ip6address($route->{'dest'}) ||
|
|
$route->{'dest'} eq '::' ? 6 : 4;
|
|
if (&has_command("route")) {
|
|
# Use old route command
|
|
$cmd = "route ".
|
|
($proto == 6 ? "-A inet6" : "-A inet")." del ";
|
|
if (!$route->{'dest'} || $route->{'dest'} eq '0.0.0.0' ||
|
|
$route->{'dest'} eq '::') {
|
|
$cmd .= " default";
|
|
}
|
|
elsif ($route->{'netmask'} eq '255.255.255.255') {
|
|
$cmd .= " -host ".quotemeta($route->{'dest'});
|
|
}
|
|
elsif (!&check_ip6address($route->{'dest'})) {
|
|
$cmd .= " -net ".quotemeta($route->{'dest'});
|
|
if ($route->{'netmask'} && $route->{'netmask'} ne '0.0.0.0') {
|
|
$cmd .= " netmask ".quotemeta($route->{'netmask'});
|
|
}
|
|
}
|
|
else {
|
|
$cmd .= quotemeta("$route->{'dest'}/$route->{'netmask'}");
|
|
}
|
|
if ($route->{'gateway'}) {
|
|
$cmd .= " gw ".quotemeta($route->{'gateway'});
|
|
}
|
|
elsif ($route->{'iface'}) {
|
|
$cmd .= " dev ".quotemeta($route->{'iface'});
|
|
}
|
|
}
|
|
elsif (&has_command("ip")) {
|
|
# Use new ip command
|
|
$cmd = "ip -".$proto." route delete";
|
|
if (!$route->{'dest'} || $route->{'dest'} eq '0.0.0.0' ||
|
|
$route->{'dest'} eq '::') {
|
|
$cmd .= " default";
|
|
}
|
|
else {
|
|
$cmd .= " ".quotemeta($route->{'dest'});
|
|
if ($route->{'netmask'} && $route->{'netmask'} ne '0.0.0.0' &&
|
|
$route->{'netmask'} != 32) {
|
|
if ($route->{'netmask'} =~ /^\d+$/) {
|
|
$cmd .= "/".quotemeta($route->{'netmask'});
|
|
}
|
|
else {
|
|
$cmd .= "/".&mask_to_prefix($route->{'netmask'});
|
|
}
|
|
}
|
|
}
|
|
}
|
|
else {
|
|
return "Missing the route and ip commands";
|
|
}
|
|
my $out = &backquote_logged("$cmd 2>&1 </dev/null");
|
|
return $? ? $out : undef;
|
|
}
|
|
|
|
# create_route(&route)
|
|
# Adds a new active route
|
|
sub create_route
|
|
{
|
|
local ($route) = @_;
|
|
my $cmd;
|
|
my $proto = &check_ip6address($route->{'dest'}) ||
|
|
&check_ip6address($route->{'gateway'}) ? 6 : 4;
|
|
if (&has_command("route")) {
|
|
# Use old route command
|
|
$cmd = "route ".($proto == 6 ? "-A inet6" : "-A inet")." add";
|
|
if (!$route->{'dest'} || $route->{'dest'} eq '0.0.0.0' ||
|
|
$route->{'dest'} eq '::') {
|
|
$cmd .= " default";
|
|
}
|
|
elsif ($route->{'netmask'} eq '255.255.255.255') {
|
|
$cmd .= " -host ".quotemeta($route->{'dest'});
|
|
}
|
|
elsif (!&check_ip6address($route->{'dest'})) {
|
|
$cmd .= " -net ".quotemeta($route->{'dest'});
|
|
if ($route->{'netmask'} && $route->{'netmask'} ne '0.0.0.0') {
|
|
$cmd .= " netmask ".quotemeta($route->{'netmask'});
|
|
}
|
|
}
|
|
else {
|
|
$cmd .= quotemeta("$route->{'dest'}/$route->{'netmask'}");
|
|
}
|
|
if ($route->{'gateway'}) {
|
|
$cmd .= " gw ".quotemeta($route->{'gateway'});
|
|
}
|
|
elsif ($route->{'iface'}) {
|
|
$cmd .= " dev ".quotemeta($route->{'iface'});
|
|
}
|
|
}
|
|
elsif (&has_command("ip")) {
|
|
# Use new ip command
|
|
$cmd = "ip -".$proto." route add";
|
|
if (!$route->{'dest'} || $route->{'dest'} eq '0.0.0.0' ||
|
|
$route->{'dest'} eq '::') {
|
|
$cmd .= " default";
|
|
}
|
|
else {
|
|
$cmd .= " ".quotemeta($route->{'dest'});
|
|
if ($route->{'netmask'} && $route->{'netmask'} ne '0.0.0.0' &&
|
|
$route->{'netmask'} != 32) {
|
|
if ($route->{'netmask'} =~ /^\d+$/) {
|
|
$cmd .= "/".quotemeta($route->{'netmask'});
|
|
}
|
|
else {
|
|
$cmd .= "/".&mask_to_prefix($route->{'netmask'});
|
|
}
|
|
}
|
|
}
|
|
if ($route->{'gateway'}) {
|
|
$cmd .= " via ".quotemeta($route->{'gateway'});
|
|
}
|
|
if ($route->{'iface'}) {
|
|
$cmd .= " dev ".quotemeta($route->{'iface'});
|
|
}
|
|
}
|
|
else {
|
|
return "Missing the route and ip commands";
|
|
}
|
|
my $out = &backquote_logged("$cmd 2>&1 </dev/null");
|
|
return $? ? $out : undef;
|
|
}
|
|
|
|
# iface_hardware(name)
|
|
# Does some interface have an editable hardware address
|
|
sub iface_hardware
|
|
{
|
|
return $_[0] =~ /^(eth|em|eno|ens|enp|enx|enX)/;
|
|
}
|
|
|
|
# allow_interface_clash()
|
|
# Returns 0 to indicate that two virtual interfaces with the same IP
|
|
# are not allowed
|
|
sub allow_interface_clash
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
# get_dns_config()
|
|
# Returns a hashtable containing keys nameserver, domain, search & order
|
|
# XXX factor out to os_ functions
|
|
sub get_dns_config
|
|
{
|
|
local $dns = { };
|
|
local $rc;
|
|
local $dnsfile;
|
|
if ($use_suse_dns && ($rc = &parse_rc_config()) && $rc->{'NAMESERVER'}) {
|
|
# Special case - get DNS settings from SuSE config
|
|
local @ns = split(/\s+/, $rc->{'NAMESERVER'}->{'value'});
|
|
$dns->{'nameserver'} = [ grep { $_ ne "YAST_ASK" } @ns ];
|
|
local $src = $rc->{'SEARCHLIST'};
|
|
$dns->{'domain'} = [ split(/\s+/, $src->{'value'}) ] if ($src);
|
|
$dnsfile = $rc_config;
|
|
}
|
|
elsif ($gconfig{'os_type'} eq 'debian-linux' && -l "/etc/resolv.conf" &&
|
|
$netplan_dir) {
|
|
# On Ubuntu 18+, /etc/resolv.conf is auto-generated from netplan config
|
|
my @boot = &boot_interfaces();
|
|
foreach my $b (@boot) {
|
|
if ($b->{'nameserver'}) {
|
|
$dns->{'nameserver'} = $b->{'nameserver'};
|
|
$dns->{'domain'} = $b->{'search'};
|
|
$dnsfile = $b->{'file'};
|
|
last;
|
|
}
|
|
}
|
|
}
|
|
elsif ($gconfig{'os_type'} eq 'debian-linux' && -l "/etc/resolv.conf") {
|
|
# On Ubuntu 12+, /etc/resolv.conf is auto-generated from network
|
|
# interface config
|
|
my @ifaces = &get_interface_defs();
|
|
foreach my $i (@ifaces) {
|
|
local ($ns) = grep { $_->[0] eq 'dns-nameservers' } @{$i->[3]};
|
|
local @dom = grep { $_->[0] eq 'dns-domain' ||
|
|
$_->[0] eq 'dns-search' } @{$i->[3]};
|
|
if ($ns) {
|
|
$dns->{'nameserver'} = [ split(/\s+/, $ns->[1]) ];
|
|
if (@dom) {
|
|
$dns->{'domain'} =
|
|
[ map { split(/\s+/, $_->[1]) } @dom ];
|
|
}
|
|
$dnsfile = "/etc/network/interfaces";
|
|
last;
|
|
}
|
|
}
|
|
}
|
|
if (!$dnsfile) {
|
|
# Just read resolv.conf
|
|
&open_readfile(RESOLV, "/etc/resolv.conf");
|
|
while(<RESOLV>) {
|
|
s/\r|\n//g;
|
|
s/#.*$//;
|
|
s/;.*$//;
|
|
if (/nameserver\s+(.*)/) {
|
|
push(@{$dns->{'nameserver'}}, split(/\s+/, $1));
|
|
}
|
|
elsif (/domain\s+(\S+)/) {
|
|
$dns->{'domain'} = [ $1 ];
|
|
}
|
|
elsif (/search\s+(.*)/) {
|
|
$dns->{'domain'} = [ split(/\s+/, $1) ];
|
|
}
|
|
}
|
|
close(RESOLV);
|
|
$dnsfile = "/etc/resolv.conf";
|
|
}
|
|
&open_readfile(SWITCH, "/etc/nsswitch.conf");
|
|
while(<SWITCH>) {
|
|
s/\r|\n//g;
|
|
if (/^\s*hosts:\s+(.*)/) {
|
|
$dns->{'order'} = $1;
|
|
}
|
|
}
|
|
close(SWITCH);
|
|
$dns->{'files'} = [ $dnsfile, "/etc/nsswitch.conf" ];
|
|
return $dns;
|
|
}
|
|
|
|
# save_dns_config(&config)
|
|
# Writes out the resolv.conf and nsswitch.conf files
|
|
sub save_dns_config
|
|
{
|
|
local ($conf) = @_;
|
|
local ($need_apply, $generated_resolv) = (0, 0);
|
|
|
|
# Call OS-specific function to update resolvers elsewhere
|
|
if (defined(&os_save_dns_config)) {
|
|
($need_apply, $generated_resolv) = &os_save_dns_config($conf);
|
|
}
|
|
|
|
if (!$generated_resolv) {
|
|
# Update standard resolv.conf file
|
|
&lock_file("/etc/resolv.conf");
|
|
&open_readfile(RESOLV, "/etc/resolv.conf");
|
|
local @resolv = <RESOLV>;
|
|
close(RESOLV);
|
|
&open_tempfile(RESOLV, ">/etc/resolv.conf");
|
|
foreach (@{$conf->{'nameserver'}}) {
|
|
&print_tempfile(RESOLV, "nameserver $_\n");
|
|
}
|
|
if ($conf->{'domain'}) {
|
|
if ($conf->{'domain'}->[1]) {
|
|
&print_tempfile(RESOLV,
|
|
"search ",join(" ", @{$conf->{'domain'}}),"\n");
|
|
}
|
|
else {
|
|
&print_tempfile(RESOLV,
|
|
"domain $conf->{'domain'}->[0]\n");
|
|
}
|
|
}
|
|
foreach (@resolv) {
|
|
&print_tempfile(RESOLV, $_)
|
|
if (!/^\s*(nameserver|domain|search)\s+/);
|
|
}
|
|
&close_tempfile(RESOLV);
|
|
&unlock_file("/etc/resolv.conf");
|
|
}
|
|
|
|
# Update resolution order in nsswitch.conf
|
|
&lock_file("/etc/nsswitch.conf");
|
|
&open_readfile(SWITCH, "/etc/nsswitch.conf");
|
|
local @switch = <SWITCH>;
|
|
close(SWITCH);
|
|
&open_tempfile(SWITCH, ">/etc/nsswitch.conf");
|
|
foreach (@switch) {
|
|
if (/^\s*hosts:\s+/) {
|
|
&print_tempfile(SWITCH,
|
|
&linux_nsswitch_hosts_line($_, $conf->{'order'}));
|
|
}
|
|
else {
|
|
&print_tempfile(SWITCH, $_);
|
|
}
|
|
}
|
|
&close_tempfile(SWITCH);
|
|
&unlock_file("/etc/nsswitch.conf");
|
|
|
|
# Update SuSE config file for resolution order
|
|
if ($use_suse_dns) {
|
|
&lock_file($rc_config);
|
|
local $rc = &parse_rc_config();
|
|
if ($rc->{'USE_NIS_FOR_RESOLVING'}) {
|
|
if ($conf->{'order'} =~ /nis/) {
|
|
&save_rc_config($rc, "USE_NIS_FOR_RESOLVING", "yes");
|
|
}
|
|
else {
|
|
&save_rc_config($rc, "USE_NIS_FOR_RESOLVING", "no");
|
|
}
|
|
}
|
|
&unlock_file($rc_config);
|
|
}
|
|
|
|
# Update resolv.conf from network interfaces config
|
|
if ($need_apply) {
|
|
my $err = &apply_network();
|
|
&error("<pre>".&html_escape($err)."</pre>") if ($err);
|
|
}
|
|
}
|
|
|
|
$max_dns_servers = 3;
|
|
|
|
# order_input(&dns)
|
|
# Returns HTML for selecting the name resolution order
|
|
sub order_input
|
|
{
|
|
my @o = split(/\s+/, $_[0]->{'order'});
|
|
@o = map { s/nis\+/nisplus/; s/yp/nis/; $_; } @o;
|
|
my @opts = ( [ "files", "Hosts file" ], [ "dns", "DNS" ], [ "nis", "NIS" ],
|
|
[ "nisplus", "NIS+" ], [ "ldap", "LDAP" ], [ "db", "DB" ],
|
|
[ "mdns4", "Multicast DNS" ], [ "myhostname", "Local hostname" ] );
|
|
if (&indexof("mdns4_minimal", @o) >= 0) {
|
|
push(@opts, [ "mdns4_minimal", "Multicast DNS (minimal)" ]);
|
|
}
|
|
return &common_order_input("order", join(" ", @o), \@opts);
|
|
}
|
|
|
|
# parse_order(&dns)
|
|
# Parses the form created by order_input()
|
|
sub parse_order
|
|
{
|
|
if (defined($in{'order'})) {
|
|
$in{'order'} =~ /\S/ || &error($text{'dns_eorder'});
|
|
$_[0]->{'order'} = $in{'order'};
|
|
}
|
|
else {
|
|
local($i, @order);
|
|
for($i=0; defined($in{"order_$i"}); $i++) {
|
|
push(@order, $in{"order_$i"}) if ($in{"order_$i"});
|
|
}
|
|
$_[0]->{'order'} = join(" ", @order);
|
|
}
|
|
}
|
|
|
|
# linux_nsswitch_hosts_line(line, order)
|
|
# Returns an updated nsswitch hosts line preserving existing spacing
|
|
sub linux_nsswitch_hosts_line
|
|
{
|
|
my ($line, $order) = @_;
|
|
$line =~ s/\r?\n$//;
|
|
my $comment = "";
|
|
if ($line =~ s/(\s+#.*)$//) {
|
|
# Keep inline comments while replacing only the lookup order.
|
|
$comment = $1;
|
|
}
|
|
return $1.$2.$order.$comment."\n"
|
|
if ($line =~ /^(\s*hosts:)(\s+)\S/);
|
|
return "hosts:\t$order$comment\n";
|
|
}
|
|
|
|
1;
|