X-Git-Url: https://git.proxmox.com/?p=pve-common.git;a=blobdiff_plain;f=data%2FPVE%2FNetwork.pm;h=fece787e13ba929015c953ef82387fe196a54985;hp=4181450baba9522f5fa498134272b35c9e8b51db;hb=605bb891dd6ca48430d5e05cb8eb392f6f928a42;hpb=b9436cda61380b2e37370065cd6b3e790225b132

diff --git a/data/PVE/Network.pm b/data/PVE/Network.pm
index 4181450..fece787 100644
--- a/data/PVE/Network.pm
+++ b/data/PVE/Network.pm
@@ -1,34 +1,278 @@
 package PVE::Network;
 
 use strict;
-use PVE::Tools;
+use warnings;
+use PVE::Tools qw(run_command);
 use PVE::ProcFSTools;
 use PVE::INotify;
 use File::Basename;
 
 # host network related utility functions
 
+sub setup_tc_rate_limit {
+    my ($iface, $rate, $burst, $debug) = @_;
+
+    system("/sbin/tc class del dev $iface parent 1: classid 1:1 >/dev/null 2>&1");
+    system("/sbin/tc filter del dev $iface parent ffff: protocol ip prio 50 estimator 1sec 8sec >/dev/null 2>&1");
+    system("/sbin/tc qdisc del dev $iface ingress >/dev/null 2>&1");
+    system("/sbin/tc qdisc del dev $iface root >/dev/null 2>&1");
+
+    return if !$rate;
+
+    run_command("/sbin/tc qdisc add dev $iface handle ffff: ingress");
+
+    # this does not work wit virtio - don't know why (setting "mtu 64kb" does not help)
+    #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");
+    # so we use avrate instead
+    run_command("/sbin/tc filter add dev $iface parent ffff: " .
+		"protocol ip prio 50 estimator 1sec 8sec " .
+		"u32 match ip src 0.0.0.0/0 police avrate ${rate}bps drop flowid :1");
+
+    # tbf does not work for unknown reason
+    #$TC qdisc add dev $DEV root tbf rate $RATE latency 100ms burst $BURST
+    # so we use htb instead
+    run_command("/sbin/tc qdisc add dev $iface root handle 1: htb default 1");
+    run_command("/sbin/tc class add dev $iface parent 1: classid 1:1 " .
+		"htb rate ${rate}bps burst ${burst}b");
+
+    if ($debug) {
+	print "DEBUG tc settings\n";
+	system("/sbin/tc qdisc ls dev $iface");
+	system("/sbin/tc class ls dev $iface");
+	system("/sbin/tc filter ls dev $iface parent ffff:");
+    }
+}
+
+sub tap_rate_limit {
+    my ($iface, $rate) = @_;
+
+    my $debug = 0;
+    $rate = int($rate*1024*1024);
+    my $burst = 1024*1024;
+
+    setup_tc_rate_limit($iface, $rate, $burst, $debug);
+}
+
+my $read_bridge_mtu = sub {
+    my ($bridge) = @_;
+
+    my $mtu = PVE::Tools::file_read_firstline("/sys/class/net/$bridge/mtu");
+    die "bridge '$bridge' does not exist\n" if !$mtu;
+    # avoid insecure dependency;
+    die "unable to parse mtu value" if $mtu !~ /^(\d+)$/;
+    $mtu = int($1);
+
+    return $mtu;
+};
+
+my $parse_tap_devive_name = sub {
+    my ($iface) = @_;
+
+    my ($vmid, $devid);
+
+    if ($iface =~ m/^tap(\d+)i(\d+)$/) {
+	$vmid = $1;
+	$devid = $2;
+    } elsif ($iface =~ m/^veth(\d+)\.(\d+)$/) {
+	$vmid = $1;
+	$devid = $2;
+    } else {
+	die "wrong interface name $iface";
+    }
+
+    return ($vmid, $devid);
+};
+
+my $compute_fwbr_names_linux = sub {
+    my ($vmid, $devid) = @_;
+
+    my $fwbr = "fwbr${vmid}i${devid}";
+    my $vethfw = "link${vmid}i${devid}";
+    my $vethfwpeer = "link${vmid}p${devid}";
+
+    return ($fwbr, $vethfw, $vethfwpeer);
+};
+
+my $compute_ovs_firewall_port_name = sub {
+    my ($vmid, $devid) = @_;
+
+    return "fwint${vmid}i${devid}";
+};
+
+my $cond_create_bridge = sub {
+    my ($bridge) = @_;
+
+    if (! -d "/sys/class/net/$bridge") {
+        system("/sbin/brctl addbr $bridge") == 0 ||
+            die "can't add bridge '$bridge'\n";
+    }
+};
+
+my $bridge_add_interface = sub {
+    my ($bridge, $iface) = @_;
+
+    system("/sbin/brctl addif $bridge $iface") == 0 ||
+	die "can't add interface 'iface' to bridge '$bridge'\n";
+};
+
+my $activate_interface = sub {
+    my ($iface) = @_;
+
+    system("/sbin/ip link set $iface up") == 0 ||
+	die "can't activate interface '$iface'\n";
+};
+
+sub tap_create {
+    my ($iface, $bridge) = @_;
+
+    die "unable to get bridge setting\n" if !$bridge;
+
+    my $bridgemtu = &$read_bridge_mtu($bridge);
+
+    eval { 
+	PVE::Tools::run_command("/sbin/ifconfig $iface 0.0.0.0 promisc up mtu $bridgemtu");
+    };
+    die "interface activation failed\n" if $@;
+}
+
+
+my $create_firewall_bridge_linux = sub {
+    my ($iface, $bridge) = @_;
+
+    my ($vmid, $devid) = &$parse_tap_devive_name($iface);
+    my ($fwbr, $vethfw, $vethfwpeer) = &$compute_fwbr_names_linux($vmid, $devid);
+
+    my $bridgemtu = &$read_bridge_mtu($bridge);
+
+    &$cond_create_bridge($fwbr);
+    &$activate_interface($fwbr);
+
+    copy_bridge_config($bridge, $fwbr);
+    # create veth pair
+    if (! -d "/sys/class/net/$vethfw") {
+	system("/sbin/ip link add name $vethfw type veth peer name $vethfwpeer mtu $bridgemtu") == 0 ||
+	    die "can't create interface $vethfw\n";
+    }
+
+    # up vethpair
+    &$activate_interface($vethfw);
+    &$activate_interface($vethfwpeer);
+
+    &$bridge_add_interface($bridge, $vethfw);
+    &$bridge_add_interface($fwbr, $vethfwpeer);
+
+    return $fwbr;
+};
+
+my $cleanup_firewall_bridge_linux  = sub {
+    my ($iface) = @_;
+
+    my ($vmid, $devid) = &$parse_tap_devive_name($iface);
+    my ($fwbr, $vethfw, $vethfwpeer) = &$compute_fwbr_names_linux($vmid, $devid);
+
+    # delete old vethfw interface
+    if (-d "/sys/class/net/$vethfw") {
+	run_command("/sbin/ip link delete dev $vethfw", outfunc => sub {}, errfunc => sub {});
+    }
+
+    # cleanup fwbr bridge
+    if (-d "/sys/class/net/$fwbr") {
+	run_command("/sbin/ip link set dev $fwbr down", outfunc => sub {}, errfunc => sub {});
+	run_command("/sbin/brctl delbr $fwbr", outfunc => sub {}, errfunc => sub {});
+    }
+};
+
+sub tap_plug {
+    my ($iface, $bridge, $tag, $firewall) = @_;
+
+    #cleanup old port config from any openvswitch bridge
+    eval {run_command("/usr/bin/ovs-vsctl del-port $iface", outfunc => sub {}, errfunc => sub {}) };
+
+    if (-d "/sys/class/net/$bridge/bridge") {
+	&$cleanup_firewall_bridge_linux($iface); # remove stale devices
+
+	my $newbridge = activate_bridge_vlan($bridge, $tag);
+	copy_bridge_config($bridge, $newbridge) if $bridge ne $newbridge;
+
+	$newbridge = &$create_firewall_bridge_linux($iface, $newbridge) if $firewall;
+
+	&$bridge_add_interface($newbridge, $iface);
+    } else {
+	my $cmd = "/usr/bin/ovs-vsctl add-port $bridge $iface";
+	$cmd .= " tag=$tag" if $tag;
+	system($cmd) == 0 ||
+	    die "can't add interface to bridge\n";
+    }
+}
+
+sub tap_unplug {
+    my ($iface) = @_;
+
+    my $path= "/sys/class/net/$iface/brport/bridge";
+    if (-l $path) {
+	my $bridge = basename(readlink($path));
+	#avoid insecure dependency;
+	($bridge) = $bridge =~ /(\S+)/;
+
+	system("/sbin/brctl delif $bridge $iface") == 0 ||
+	    die "can't del interface '$iface' from bridge '$bridge'\n";
+
+	&$cleanup_firewall_bridge_linux($iface);
+    } else {
+	system ("/usr/bin/ovs-vsctl del-port $iface") == 0 ||
+	    die "can't del ovs port '$iface'\n";
+    }
+}
+
 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'];
+		       'hello_time', 'max_age', 'multicast_snooping', 'multicast_querier'];
 
     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 '$sysname'\n";
+		 PVE::ProcFSTools::write_proc_entry("/sys/class/net/$br1/bridge/$sysname", $v0);
 	    }
 	};
 	warn $@ if $@;
     }
 }
 
+sub activate_bridge_vlan_slave {
+    my ($bridgevlan, $iface, $tag) = @_;
+    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 $ifacevlan up
+    &$activate_interface($ifacevlan);
+
+    # 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 ne $bridgevlan) {
+	    die "interface $ifacevlan already exist in bridge $tbridge\n";
+	} else {
+            # Port already attached to bridge: do nothing.
+            return;
+	}
+    }
+
+    # add $ifacevlan to the bridge
+    &$bridge_add_interface($bridgevlan, $ifacevlan);
+}
+
 sub activate_bridge_vlan {
     my ($bridge, $tag_param) = @_;
 
@@ -42,61 +286,31 @@ sub activate_bridge_vlan {
 
     my $bridgevlan = "${bridge}v$tag";
 
+    my @ifaces = ();
     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;
-
+        push @ifaces, $_[0];
     });
 
-    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 $tbridge\n";
-	}
-    }
+    die "no physical interface on bridge '$bridge'\n" if scalar(@ifaces) == 0;
 
     # add bridgevlan if it doesn't already exist
     if (! -d "/sys/class/net/$bridgevlan") {
-        system("/usr/sbin/brctl addbr $bridgevlan") == 0 ||
+        system("/sbin/brctl addbr $bridgevlan") == 0 ||
             die "can't add bridge $bridgevlan\n";
     }
 
+    # for each physical interface (eth or bridge) bind them to bridge vlan
+    foreach my $iface (@ifaces) {
+        activate_bridge_vlan_slave($bridgevlan, $iface, $tag);
+    }
+
     #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;
 }