+package PVE::Network;
+
+use strict;
+use PVE::Tools;
+use PVE::ProcFSTools;
+use PVE::INotify;
+use File::Basename;
+
+# host network related utility functions
+
+sub copy_bridge_config {
+ my ($br0, $br1) = @_;
+
+ return if $br0 eq $br1;
+
+ my $br_configs = [ 'ageing_time', 'stp_state', 'priority', 'forward_delay',
+ 'hello_time', 'max_age'];
+
+ foreach my $sysname (@$br_configs) {
+ eval {
+ my $v0 = PVE::Tools::file_read_firstline("/sys/class/net/$br0/bridge/$sysname");
+ my $v1 = PVE::Tools::file_read_firstline("/sys/class/net/$br1/bridge/$sysname");
+ if ($v0 ne $v1) {
+ system("echo \"$v0\" > /sys/class/net/$br1/bridge/$sysname") == 0 ||
+ warn "unable to set bridge config '$sysname'\n";
+ }
+ };
+ warn $@ if $@;
+ }
+}
+
+sub activate_bridge_vlan {
+ my ($bridge, $tag_param) = @_;
+
+ die "bridge '$bridge' is not active\n" if ! -d "/sys/class/net/$bridge";
+
+ return $bridge if !defined($tag_param); # no vlan, simply return
+
+ my $tag = int($tag_param);
+
+ die "got strange vlan tag '$tag_param'\n" if $tag < 1 || $tag > 4094;
+
+ my $bridgevlan = "${bridge}v$tag";
+
+ my $dir = "/sys/class/net/$bridge/brif";
+
+ #check if we have an only one ethX or bondX interface in the bridge
+
+ my $iface;
+ PVE::Tools::dir_glob_foreach($dir, '((eth|bond)\d+)', sub {
+ my ($slave) = @_;
+
+ die "more then one physical interfaces on bridge '$bridge'\n" if $iface;
+ $iface = $slave;
+
+ });
+
+ die "no physical interface on bridge '$bridge'\n" if !$iface;
+
+ my $ifacevlan = "${iface}.$tag";
+
+ # create vlan on $iface is not already exist
+ if (! -d "/sys/class/net/$ifacevlan") {
+ system("/sbin/vconfig add $iface $tag") == 0 ||
+ die "can't add vlan tag $tag to interface $iface\n";
+ }
+
+ # be sure to have the $ifacevlan up
+ system("/sbin/ip link set $ifacevlan up") == 0 ||
+ die "can't up interface $ifacevlan\n";
+
+ # test if $vlaniface is already enslaved in another bridge
+ my $path= "/sys/class/net/$ifacevlan/brport/bridge";
+ if (-l $path) {
+ my $tbridge = basename(readlink($path));
+ if ($tbridge eq $bridgevlan) {
+ # already member of bridge - assume setup is already done
+ return $bridgevlan;
+ } else {
+ die "interface $ifacevlan already exist in bridge $tbridge\n";
+ }
+ }
+
+ # add bridgevlan if it doesn't already exist
+ if (! -d "/sys/class/net/$bridgevlan") {
+ system("/usr/sbin/brctl addbr $bridgevlan") == 0 ||
+ die "can't add bridge $bridgevlan\n";
+ }
+
+ #fixme: set other bridge flags
+
+ # be sure to have the bridge up
+ system("/sbin/ip link set $bridgevlan up") == 0 ||
+ die "can't up bridge $bridgevlan\n";
+
+ # add $ifacevlan to the bridge
+ system("/usr/sbin/brctl addif $bridgevlan $ifacevlan") == 0 ||
+ die "can't add interface $ifacevlan to bridge $bridgevlan\n";
+
+ return $bridgevlan;
+}
+
+1;