use PVE::ProcFSTools;
use PVE::INotify;
use File::Basename;
+use IO::Socket::IP;
+use POSIX qw(ECONNREFUSED);
+
+use Net::IP;
+
+use Socket qw(IPPROTO_IP);
+
+use constant IFF_UP => 1;
+use constant IFNAMSIZ => 16;
+use constant SIOCGIFFLAGS => 0x8913;
# host network related utility functions
+our $ipv4_reverse_mask = [
+ '0.0.0.0',
+ '128.0.0.0',
+ '192.0.0.0',
+ '224.0.0.0',
+ '240.0.0.0',
+ '248.0.0.0',
+ '252.0.0.0',
+ '254.0.0.0',
+ '255.0.0.0',
+ '255.128.0.0',
+ '255.192.0.0',
+ '255.224.0.0',
+ '255.240.0.0',
+ '255.248.0.0',
+ '255.252.0.0',
+ '255.254.0.0',
+ '255.255.0.0',
+ '255.255.128.0',
+ '255.255.192.0',
+ '255.255.224.0',
+ '255.255.240.0',
+ '255.255.248.0',
+ '255.255.252.0',
+ '255.255.254.0',
+ '255.255.255.0',
+ '255.255.255.128',
+ '255.255.255.192',
+ '255.255.255.224',
+ '255.255.255.240',
+ '255.255.255.248',
+ '255.255.255.252',
+ '255.255.255.254',
+ '255.255.255.255',
+];
+
+our $ipv4_mask_hash_localnet = {
+ '255.255.0.0' => 16,
+ '255.255.128.0' => 17,
+ '255.255.192.0' => 18,
+ '255.255.224.0' => 19,
+ '255.255.240.0' => 20,
+ '255.255.248.0' => 21,
+ '255.255.252.0' => 22,
+ '255.255.254.0' => 23,
+ '255.255.255.0' => 24,
+ '255.255.255.128' => 25,
+ '255.255.255.192' => 26,
+ '255.255.255.224' => 27,
+ '255.255.255.240' => 28,
+ '255.255.255.248' => 29,
+ '255.255.255.252' => 30,
+};
+
sub setup_tc_rate_limit {
my ($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");
+ # these are allowed / expected to fail, e.g. when there is no previous rate limit to remove
+ eval { run_command("/sbin/tc class del dev $iface parent 1: classid 1:1 >/dev/null 2>&1"); };
+ eval { run_command("/sbin/tc filter del dev $iface parent ffff: protocol all pref 50 u32 >/dev/null 2>&1"); };
+ eval { run_command("/sbin/tc qdisc del dev $iface ingress >/dev/null 2>&1"); };
+ eval { run_command("/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 class add dev $iface parent 1: classid 1:1 " .
"htb rate ${rate}bps burst ${burst}b");
+ run_command("/sbin/tc qdisc add dev $iface handle ffff: ingress");
+ run_command("/sbin/tc filter add dev $iface parent ffff: " .
+ "prio 50 basic " .
+ "police rate ${rate}bps burst ${burst}b mtu 64kb " .
+ "drop flowid :1");
+
if ($debug) {
print "DEBUG tc settings\n";
system("/sbin/tc qdisc ls dev $iface");
my ($iface, $rate) = @_;
my $debug = 0;
- $rate = int($rate*1024*1024);
+ $rate = int($rate*1024*1024) if $rate;
my $burst = 1024*1024;
setup_tc_rate_limit($iface, $rate, $burst, $debug);
return $mtu;
};
-my $parse_tap_devive_name = sub {
+my $parse_tap_device_name = sub {
my ($iface, $noerr) = @_;
my ($vmid, $devid);
if ($iface =~ m/^tap(\d+)i(\d+)$/) {
$vmid = $1;
$devid = $2;
- } elsif ($iface =~ m/^veth(\d+)\.(\d+)$/) {
+ } elsif ($iface =~ m/^veth(\d+)i(\d+)$/) {
$vmid = $1;
$devid = $2;
} else {
};
my $bridge_add_interface = sub {
- my ($bridge, $iface) = @_;
+ my ($bridge, $iface, $tag, $trunks) = @_;
system("/sbin/brctl addif $bridge $iface") == 0 ||
die "can't add interface 'iface' to bridge '$bridge'\n";
+
+ my $vlan_aware = PVE::Tools::file_read_firstline("/sys/class/net/$bridge/bridge/vlan_filtering");
+
+ if ($vlan_aware) {
+ if ($tag) {
+ system("/sbin/bridge vlan add dev $iface vid $tag pvid untagged") == 0 ||
+ die "unable to add vlan $tag to interface $iface\n";
+
+ warn "Caution: Setting VLAN ID 1 on a VLAN aware bridge may be dangerous\n" if $tag == 1;
+ } else {
+ system("/sbin/bridge vlan add dev $iface vid 2-4094") == 0 ||
+ die "unable to add default vlan tags to interface $iface\n" if !$trunks;
+ }
+
+ if ($trunks) {
+ my @trunks_array = split /;/, $trunks;
+ foreach my $trunk (@trunks_array) {
+ system("/sbin/bridge vlan add dev $iface vid $trunk") == 0 ||
+ die "unable to add vlan $trunk to interface $iface\n";
+ }
+ }
+ }
};
my $ovs_bridge_add_port = sub {
- my ($bridge, $iface, $tag, $internal) = @_;
+ my ($bridge, $iface, $tag, $internal, $trunks) = @_;
+
+ $trunks =~ s/;/,/g if $trunks;
my $cmd = "/usr/bin/ovs-vsctl add-port $bridge $iface";
$cmd .= " tag=$tag" if $tag;
+ $cmd .= " trunks=". join(',', $trunks) if $trunks;
+ $cmd .= " vlan_mode=native-untagged" if $tag && $trunks;
+
$cmd .= " -- set Interface $iface type=internal" if $internal;
system($cmd) == 0 ||
die "can't add ovs port '$iface'\n";
die "interface activation failed\n" if $@;
}
-my $create_firewall_bridge_linux = sub {
- my ($iface, $bridge) = @_;
+sub veth_create {
+ my ($veth, $vethpeer, $bridge, $mac) = @_;
- my ($vmid, $devid) = &$parse_tap_devive_name($iface);
- my ($fwbr, $vethfw, $vethfwpeer) = &$compute_fwbr_names($vmid, $devid);
+ die "unable to get bridge setting\n" if !$bridge;
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 $vethfw\n";
+ if (! -d "/sys/class/net/$veth") {
+ my $cmd = "/sbin/ip link add name $veth type veth peer name $vethpeer mtu $bridgemtu";
+ $cmd .= " addr $mac" if $mac;
+ system($cmd) == 0 || die "can't create interface $veth\n";
}
# up vethpair
- &$activate_interface($vethfw);
- &$activate_interface($vethfwpeer);
+ &$activate_interface($veth);
+ &$activate_interface($vethpeer);
+}
+
+sub veth_delete {
+ my ($veth) = @_;
+
+ if (-d "/sys/class/net/$veth") {
+ run_command("/sbin/ip link delete dev $veth", outfunc => sub {}, errfunc => sub {});
+ }
+
+}
+
+my $create_firewall_bridge_linux = sub {
+ my ($iface, $bridge, $tag, $trunks) = @_;
+
+ my ($vmid, $devid) = &$parse_tap_device_name($iface);
+ my ($fwbr, $vethfw, $vethfwpeer) = &$compute_fwbr_names($vmid, $devid);
+
+ &$cond_create_bridge($fwbr);
+ &$activate_interface($fwbr);
+
+ copy_bridge_config($bridge, $fwbr);
+ veth_create($vethfw, $vethfwpeer, $bridge);
&$bridge_add_interface($fwbr, $vethfw);
- &$bridge_add_interface($bridge, $vethfwpeer);
+ &$bridge_add_interface($bridge, $vethfwpeer, $tag, $trunks);
- return $fwbr;
+ &$bridge_add_interface($fwbr, $iface);
};
my $create_firewall_bridge_ovs = sub {
- my ($iface, $bridge, $tag) = @_;
+ my ($iface, $bridge, $tag, $trunks) = @_;
- my ($vmid, $devid) = &$parse_tap_devive_name($iface);
+ my ($vmid, $devid) = &$parse_tap_device_name($iface);
my ($fwbr, undef, undef, $ovsintport) = &$compute_fwbr_names($vmid, $devid);
my $bridgemtu = &$read_bridge_mtu($bridge);
&$bridge_add_interface($fwbr, $iface);
- &$ovs_bridge_add_port($bridge, $ovsintport, $tag, 1);
+ &$ovs_bridge_add_port($bridge, $ovsintport, $tag, 1, $trunks);
&$activate_interface($ovsintport);
# set the same mtu for ovs int port
my $cleanup_firewall_bridge = sub {
my ($iface) = @_;
- my ($vmid, $devid) = &$parse_tap_devive_name($iface, 1);
+ my ($vmid, $devid) = &$parse_tap_device_name($iface, 1);
return if !defined($vmid);
my ($fwbr, $vethfw, $vethfwpeer, $ovsintport) = &$compute_fwbr_names($vmid, $devid);
}
# delete old vethfw interface
- if (-d "/sys/class/net/$vethfw") {
- run_command("/sbin/ip link delete dev $vethfw", outfunc => sub {}, errfunc => sub {});
- }
+ veth_delete($vethfw);
# cleanup fwbr bridge
if (-d "/sys/class/net/$fwbr") {
};
sub tap_plug {
- my ($iface, $bridge, $tag, $firewall) = @_;
+ my ($iface, $bridge, $tag, $firewall, $trunks, $rate) = @_;
#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") {
&$cleanup_firewall_bridge($iface); # remove stale devices
- my $newbridge = activate_bridge_vlan($bridge, $tag);
- copy_bridge_config($bridge, $newbridge) if $bridge ne $newbridge;
+ my $vlan_aware = PVE::Tools::file_read_firstline("/sys/class/net/$bridge/bridge/vlan_filtering");
+
+ if (!$vlan_aware) {
+ die "vlan aware feature need to be enabled to use trunks" if $trunks;
+ my $newbridge = activate_bridge_vlan($bridge, $tag);
+ copy_bridge_config($bridge, $newbridge) if $bridge ne $newbridge;
+ $bridge = $newbridge;
+ $tag = undef;
+ }
- $newbridge = &$create_firewall_bridge_linux($iface, $newbridge) if $firewall;
+ if ($firewall) {
+ &$create_firewall_bridge_linux($iface, $bridge, $tag, $trunks);
+ } else {
+ &$bridge_add_interface($bridge, $iface, $tag, $trunks);
+ }
- &$bridge_add_interface($newbridge, $iface);
} else {
&$cleanup_firewall_bridge($iface); # remove stale devices
if ($firewall) {
- &$create_firewall_bridge_ovs($iface, $bridge, $tag);
+ &$create_firewall_bridge_ovs($iface, $bridge, $tag, $trunks);
} else {
- &$ovs_bridge_add_port($bridge, $iface, $tag);
+ &$ovs_bridge_add_port($bridge, $iface, $tag, undef, $trunks);
}
}
+
+ tap_rate_limit($iface, $rate);
}
sub tap_unplug {
}
&$cleanup_firewall_bridge($iface);
+ #cleanup old port config from any openvswitch bridge
+ eval {run_command("/usr/bin/ovs-vsctl del-port $iface", outfunc => sub {}, errfunc => sub {}) };
}
sub copy_bridge_config {
# create vlan on $iface is not already exist
if (! -d "/sys/class/net/$ifacevlan") {
- system("/sbin/vconfig add $iface $tag") == 0 ||
+ system("/sbin/ip link add link $iface name ${iface}.${tag} type vlan id $tag") == 0 ||
die "can't add vlan tag $tag to interface $iface\n";
}
my @ifaces = ();
my $dir = "/sys/class/net/$bridge/brif";
- PVE::Tools::dir_glob_foreach($dir, '((eth|bond)\d+)', sub {
+ PVE::Tools::dir_glob_foreach($dir, '(((eth|bond)\d+|en[^.]+)(\.\d+)?)', sub {
push @ifaces, $_[0];
});
return $bridgevlan;
}
+sub tcp_ping {
+ my ($host, $port, $timeout) = @_;
+
+ my $refused = 1;
+
+ $timeout = 3 if !$timeout; # sane default
+ if (!$port) {
+ # Net::Ping defaults to the echo port
+ $port = 7;
+ } else {
+ # Net::Ping's port_number() implies service_check(1)
+ $refused = 0;
+ }
+
+ my ($sock, $result);
+ eval {
+ $result = PVE::Tools::run_with_timeout($timeout, sub {
+ $sock = IO::Socket::IP->new(PeerHost => $host, PeerPort => $port, Type => SOCK_STREAM);
+ $result = $refused if $! == ECONNREFUSED;
+ });
+ };
+ if ($sock) {
+ $sock->close();
+ $result = 1;
+ }
+ return $result;
+}
+
+sub IP_from_cidr {
+ my ($cidr, $version) = @_;
+
+ return if $cidr !~ m!^(\S+?)/(\S+)$!;
+ my ($ip, $prefix) = ($1, $2);
+
+ my $ipobj = Net::IP->new($ip, $version);
+ return if !$ipobj;
+
+ $version = $ipobj->version();
+
+ my $binmask = Net::IP::ip_get_mask($prefix, $version);
+ return if !$binmask;
+
+ my $masked_binip = $ipobj->binip() & $binmask;
+ my $masked_ip = Net::IP::ip_bintoip($masked_binip, $version);
+ return Net::IP->new("$masked_ip/$prefix");
+}
+
+sub is_ip_in_cidr {
+ my ($ip, $cidr, $version) = @_;
+
+ my $cidr_obj = IP_from_cidr($cidr, $version);
+ return undef if !$cidr_obj;
+
+ my $ip_obj = Net::IP->new($ip, $version);
+ return undef if !$ip_obj;
+
+ return $cidr_obj->overlaps($ip_obj) == $Net::IP::IP_B_IN_A_OVERLAP;
+}
+
+# struct ifreq { // FOR SIOCGIFFLAGS:
+# char ifrn_name[IFNAMSIZ]
+# short ifru_flags
+# };
+my $STRUCT_IFREQ_SIOCGIFFLAGS = 'Z' . IFNAMSIZ . 's1';
+sub get_active_interfaces {
+ # Use the interface name list from /proc/net/dev
+ open my $fh, '<', '/proc/net/dev'
+ or die "failed to open /proc/net/dev: $!\n";
+ # And filter by IFF_UP flag fetched via a PF_INET6 socket ioctl:
+ my $sock;
+ socket($sock, PF_INET6, SOCK_DGRAM, &IPPROTO_IP)
+ or socket($sock, PF_INET, SOCK_DGRAM, &IPPROTO_IP)
+ or return [];
+
+ my $ifaces = [];
+ while(defined(my $line = <$fh>)) {
+ next if $line !~ /^\s*([^:\s]+):/;
+ my $ifname = $1;
+ my $ifreq = pack($STRUCT_IFREQ_SIOCGIFFLAGS, $ifname, 0);
+ if (!defined(ioctl($sock, SIOCGIFFLAGS, $ifreq))) {
+ warn "failed to get interface flags for: $ifname\n";
+ next;
+ }
+ my ($name, $flags) = unpack($STRUCT_IFREQ_SIOCGIFFLAGS, $ifreq);
+ push @$ifaces, $ifname if ($flags & IFF_UP);
+ }
+ close $fh;
+ close $sock;
+ return $ifaces;
+}
+
1;
projects / pve-common.git / blobdiff