mirror of
https://git.proxmox.com/git/qemu-server
synced 2025-10-31 17:17:49 +00:00
69 lines
2.0 KiB
Perl
Executable File
69 lines
2.0 KiB
Perl
Executable File
#!/usr/bin/perl -w
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use strict;
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use PVE::QemuServer;
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use PVE::Tools qw(run_command);
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my $iface = shift;
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die "no interface specified\n" if !$iface;
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die "got strange interface name '$iface'\n"
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if $iface !~ m/^tap(\d+)i(\d+)$/;
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my $vmid = $1;
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my $netid = "net$2";
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my $conf = PVE::QemuServer::load_config ($vmid);
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die "unable to get network config '$netid'\n"
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if !$conf->{$netid};
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my $net = PVE::QemuServer::parse_net($conf->{$netid});
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die "unable to parse network config '$netid'\n" if !$net;
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my $bridge = $net->{bridge};
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die "unable to get bridge setting\n" if !$bridge;
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system ("/sbin/ifconfig $iface 0.0.0.0 promisc up") == 0 ||
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die "interface activation failed\n";
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if ($net->{rate}) {
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my $rate = int($net->{rate}*1024*1024);
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my $burst = 1024*1024;
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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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# this does not work wit virtio - don't know why
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#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");
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# so we use avrate instead
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run_command("/sbin/tc filter add dev $iface parent ffff: " .
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"protocol ip prio 50 estimator 1sec 8sec " .
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"u32 match ip src 0.0.0.0/0 police avrate ${rate}bps drop flowid :1");
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# tbf does not work for unknown reason
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#$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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# enable this to debug tc
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if (0) {
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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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system ("/usr/sbin/brctl addif $bridge $iface") == 0 ||
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die "can't add interface to bridge\n";
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exit 0;
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