mirror of
https://git.proxmox.com/git/pve-common
synced 2025-05-28 13:34:12 +00:00
fa49ab1a08
- use ip command instead of old vconfig - activate gvrp by default (it doesn't harm if the switch does not support it or it is disabled) - use bridge instead of raw ethernet device as vlan bridge Signed-off-by: Stefan Priebe <s.priebe@profihost.ag>
121 lines
3.7 KiB
Perl
121 lines
3.7 KiB
Perl
package PVE::Network;
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use strict;
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use PVE::Tools qw(run_command);
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use PVE::ProcFSTools;
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use PVE::INotify;
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use File::Basename;
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# host network related utility functions
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sub setup_tc_rate_limit {
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my ($iface, $rate, $burst, $debug) = @_;
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system("/sbin/tc qdisc del dev $iface ingres >/dev/null 2>&1");
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system("/sbin/tc qdisc del dev $iface root >/dev/null 2>&1");
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run_command("/sbin/tc qdisc add dev $iface handle ffff: ingress");
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# virtio uses large packets 64K, so we need to set mtu to that
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# value - else filter drops those packets and rate limit does not work.
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run_command("/sbin/tc filter add dev $iface parent ffff: " .
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"protocol ip prio 50 u32 match ip src 0.0.0.0/0 " .
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"police rate ${rate}bps burst ${burst}b " .
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"mtu 64kb drop flowid :1");
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# tbf does not work for unknown reason
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#$TC qdisc add dev $DEV root tbf rate $RATE latency 100ms burst $BURST
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# so we use htb instead
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run_command("/sbin/tc qdisc add dev $iface root handle 1: htb default 1");
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run_command("/sbin/tc class add dev $iface parent 1: classid 1:1 " .
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"htb rate ${rate}bps burst ${burst}b");
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if ($debug) {
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print "DEBUG tc settings\n";
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system("/sbin/tc qdisc ls dev $iface");
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system("/sbin/tc class ls dev $iface");
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system("/sbin/tc filter ls dev $iface parent ffff:");
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}
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}
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sub copy_bridge_config {
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my ($br0, $br1) = @_;
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return if $br0 eq $br1;
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my $br_configs = [ 'ageing_time', 'stp_state', 'priority', 'forward_delay',
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'hello_time', 'max_age'];
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foreach my $sysname (@$br_configs) {
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eval {
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my $v0 = PVE::Tools::file_read_firstline("/sys/class/net/$br0/bridge/$sysname");
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my $v1 = PVE::Tools::file_read_firstline("/sys/class/net/$br1/bridge/$sysname");
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if ($v0 ne $v1) {
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system("echo \"$v0\" > /sys/class/net/$br1/bridge/$sysname") == 0 ||
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warn "unable to set bridge config '$sysname'\n";
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}
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};
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warn $@ if $@;
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}
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}
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sub activate_bridge_vlan {
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my ($bridge, $tag_param) = @_;
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die "bridge '$bridge' is not active\n" if ! -d "/sys/class/net/$bridge";
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return $bridge if !defined($tag_param); # no vlan, simply return
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my $tag = int($tag_param);
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die "got strange vlan tag '$tag_param'\n" if $tag < 1 || $tag > 4094;
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my $bridgevlan = "${bridge}v$tag";
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my $iface = $bridge;
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my $ifacevlan = "${iface}.$tag";
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my $vlanflags = "reorder_hdr on gvrp on";
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# create vlan on $iface is not already exist
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if (! -d "/sys/class/net/$ifacevlan") {
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system("/sbin/ip link add link $iface name $ifacevlan type vlan id $tag $vlanflags") == 0 ||
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die "can't add vlan tag $tag to interface $iface\n";
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}
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# be sure to have the $ifacevlan up
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system("/sbin/ip link set $ifacevlan up") == 0 ||
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die "can't up interface $ifacevlan\n";
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# test if $vlaniface is already enslaved in another bridge
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my $path= "/sys/class/net/$ifacevlan/brport/bridge";
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if (-l $path) {
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my $tbridge = basename(readlink($path));
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if ($tbridge eq $bridgevlan) {
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# already member of bridge - assume setup is already done
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return $bridgevlan;
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} else {
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die "interface $ifacevlan already exist in bridge $tbridge\n";
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}
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}
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# add bridgevlan if it doesn't already exist
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if (! -d "/sys/class/net/$bridgevlan") {
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system("/usr/sbin/brctl addbr $bridgevlan") == 0 ||
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die "can't add bridge $bridgevlan\n";
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}
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#fixme: set other bridge flags
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# be sure to have the bridge up
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system("/sbin/ip link set $bridgevlan up") == 0 ||
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die "can't up bridge $bridgevlan\n";
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# add $ifacevlan to the bridge
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system("/usr/sbin/brctl addif $bridgevlan $ifacevlan") == 0 ||
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die "can't add interface $ifacevlan to bridge $bridgevlan\n";
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return $bridgevlan;
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}
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1;
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