5 use PVE
::Tools
qw(run_command);
10 # host network related utility functions
12 sub setup_tc_rate_limit
{
13 my ($iface, $rate, $burst, $debug) = @_;
15 system("/sbin/tc class del dev $iface parent 1: classid 1:1 >/dev/null 2>&1");
16 system("/sbin/tc filter del dev $iface parent ffff: protocol ip prio 50 estimator 1sec 8sec >/dev/null 2>&1");
17 system("/sbin/tc qdisc del dev $iface ingress >/dev/null 2>&1");
18 system("/sbin/tc qdisc del dev $iface root >/dev/null 2>&1");
22 run_command
("/sbin/tc qdisc add dev $iface handle ffff: ingress");
24 # this does not work wit virtio - don't know why (setting "mtu 64kb" does not help)
25 #run_command("/sbin/tc filter add dev $iface parent ffff: protocol ip prio 50 u32 match ip src 0.0.0.0/0 police rate ${rate}bps burst ${burst}b drop flowid :1");
26 # so we use avrate instead
27 run_command
("/sbin/tc filter add dev $iface parent ffff: " .
28 "protocol ip prio 50 estimator 1sec 8sec " .
29 "u32 match ip src 0.0.0.0/0 police avrate ${rate}bps drop flowid :1");
31 # tbf does not work for unknown reason
32 #$TC qdisc add dev $DEV root tbf rate $RATE latency 100ms burst $BURST
33 # so we use htb instead
34 run_command
("/sbin/tc qdisc add dev $iface root handle 1: htb default 1");
35 run_command
("/sbin/tc class add dev $iface parent 1: classid 1:1 " .
36 "htb rate ${rate}bps burst ${burst}b");
39 print "DEBUG tc settings\n";
40 system("/sbin/tc qdisc ls dev $iface");
41 system("/sbin/tc class ls dev $iface");
42 system("/sbin/tc filter ls dev $iface parent ffff:");
47 my ($iface, $rate) = @_;
50 $rate = int($rate*1024*1024);
51 my $burst = 1024*1024;
53 setup_tc_rate_limit
($iface, $rate, $burst, $debug);
57 my ($iface, $bridge) = @_;
59 die "unable to get bridge setting\n" if !$bridge;
61 my $bridgemtu = PVE
::Tools
::file_read_firstline
("/sys/class/net/$bridge/mtu");
62 die "bridge '$bridge' does not exist\n" if !$bridgemtu;
65 PVE
::Tools
::run_command
("/sbin/ifconfig $iface 0.0.0.0 promisc up mtu $bridgemtu");
67 die "interface activation failed\n" if $@;
71 my ($iface, $bridge, $tag) = @_;
73 #cleanup old port config from any openvswitch bridge
74 eval {run_command
("/usr/bin/ovs-vsctl del-port $iface", outfunc
=> sub {}, errfunc
=> sub {}) };
76 if (-d
"/sys/class/net/$bridge/bridge") {
77 my $newbridge = activate_bridge_vlan
($bridge, $tag);
78 copy_bridge_config
($bridge, $newbridge) if $bridge ne $newbridge;
80 system("/sbin/brctl addif $newbridge $iface") == 0 ||
81 die "can't add interface to bridge\n";
83 my $cmd = "/usr/bin/ovs-vsctl add-port $bridge $iface";
84 $cmd .= " tag=$tag" if $tag;
86 die "can't add interface to bridge\n";
91 my ($iface, $bridge, $tag) = @_;
93 if (-d
"/sys/class/net/$bridge/bridge") {
94 $bridge .= "v$tag" if $tag;
96 system("/sbin/brctl delif $bridge $iface") == 0 ||
97 die "can't del interface from bridge\n";
99 system ("/usr/bin/ovs-vsctl del-port $iface") == 0 ||
100 die "can't del interface from bridge\n";
104 sub copy_bridge_config
{
105 my ($br0, $br1) = @_;
107 return if $br0 eq $br1;
109 my $br_configs = [ 'ageing_time', 'stp_state', 'priority', 'forward_delay',
110 'hello_time', 'max_age', 'multicast_snooping', 'multicast_querier'];
112 foreach my $sysname (@$br_configs) {
114 my $v0 = PVE
::Tools
::file_read_firstline
("/sys/class/net/$br0/bridge/$sysname");
115 my $v1 = PVE
::Tools
::file_read_firstline
("/sys/class/net/$br1/bridge/$sysname");
117 PVE
::ProcFSTools
::write_proc_entry
("/sys/class/net/$br1/bridge/$sysname", $v0);
124 sub activate_bridge_vlan_slave
{
125 my ($bridgevlan, $iface, $tag) = @_;
126 my $ifacevlan = "${iface}.$tag";
128 # create vlan on $iface is not already exist
129 if (! -d
"/sys/class/net/$ifacevlan") {
130 system("/sbin/vconfig add $iface $tag") == 0 ||
131 die "can't add vlan tag $tag to interface $iface\n";
134 # be sure to have the $ifacevlan up
135 system("/sbin/ip link set $ifacevlan up") == 0 ||
136 die "can't up interface $ifacevlan\n";
138 # test if $vlaniface is already enslaved in another bridge
139 my $path= "/sys/class/net/$ifacevlan/brport/bridge";
141 my $tbridge = basename
(readlink($path));
142 if ($tbridge ne $bridgevlan) {
143 die "interface $ifacevlan already exist in bridge $tbridge\n";
145 # Port already attached to bridge: do nothing.
150 # add $ifacevlan to the bridge
151 system("/sbin/brctl addif $bridgevlan $ifacevlan") == 0 ||
152 die "can't add interface $ifacevlan to bridge $bridgevlan\n";
155 sub activate_bridge_vlan
{
156 my ($bridge, $tag_param) = @_;
158 die "bridge '$bridge' is not active\n" if ! -d
"/sys/class/net/$bridge";
160 return $bridge if !defined($tag_param); # no vlan, simply return
162 my $tag = int($tag_param);
164 die "got strange vlan tag '$tag_param'\n" if $tag < 1 || $tag > 4094;
166 my $bridgevlan = "${bridge}v$tag";
168 # add bridgevlan if it doesn't already exist
169 if (! -d
"/sys/class/net/$bridgevlan") {
170 system("/sbin/brctl addbr $bridgevlan") == 0 ||
171 die "can't add bridge $bridgevlan\n";
174 # for each physical interface (eth or bridge) bind them to bridge vlan
176 my $dir = "/sys/class/net/$bridge/brif";
177 PVE
::Tools
::dir_glob_foreach
($dir, '((eth|bond)\d+)', sub {
179 activate_bridge_vlan_slave
($bridgevlan, $slave, $tag);
183 die "no physical interface on bridge '$bridge'\n" if $ifcount == 0;
185 #fixme: set other bridge flags
187 # be sure to have the bridge up
188 system("/sbin/ip link set $bridgevlan up") == 0 ||
189 die "can't up bridge $bridgevlan\n";