use File::Basename;
use IO::Socket::IP;
+use JSON;
use Net::IP;
+use NetAddr::IP qw(:lower);
use POSIX qw(ECONNREFUSED);
use Socket qw(NI_NUMERICHOST NI_NUMERICSERV);
# host network related utility functions
-our $PHYSICAL_NIC_RE = qr/(?:eth\d+|en[^:.]+|ib\d+)/;
+our $PHYSICAL_NIC_RE = qr/(?:eth\d+|en[^:.]+|ib[^:.]+)/;
our $ipv4_reverse_mask = [
'0.0.0.0',
};
sub setup_tc_rate_limit {
- my ($iface, $rate, $burst, $debug) = @_;
+ my ($iface, $rate, $burst) = @_;
# 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"); };
"prio 50 basic " .
"police rate ${rate}bps burst ${burst}b mtu 64kb " .
"drop");
-
- if ($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) if $rate;
my $burst = 1024*1024;
- setup_tc_rate_limit($iface, $rate, $burst, $debug);
+ setup_tc_rate_limit($iface, $rate, $burst);
}
-my $read_bridge_mtu = sub {
+sub read_bridge_mtu {
my ($bridge) = @_;
my $mtu = PVE::Tools::file_read_firstline("/sys/class/net/$bridge/mtu");
my $vlan_aware = PVE::Tools::file_read_firstline("/sys/class/net/$bridge/bridge/vlan_filtering");
if ($vlan_aware) {
- if ($tag) {
- system({'/sbin/bridge'} 'bridge', 'vlan', 'del', 'dev', $iface, 'vid', '1-4094') == 0
- or die "failed to remove default vlan tags of $iface\n";
- system({'/sbin/bridge'} 'bridge', 'vlan', 'add', 'dev', $iface, 'vid', $tag, 'pvid', 'untagged') == 0
- or 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";
- }
- }
+ eval { run_command(['/sbin/bridge', 'vlan', 'del', 'dev', $iface, 'vid', '1-4094']) };
+ die "failed to remove default vlan tags of $iface - $@\n" if $@;
+
+ if ($trunks) {
+ my @trunks_array = split /;/, $trunks;
+ foreach my $trunk (@trunks_array) {
+ eval { run_command(['/sbin/bridge', 'vlan', 'add', 'dev', $iface, 'vid', $trunk]) };
+ die "unable to add vlan $trunk to interface $iface - $@\n" if $@;
+ }
+ } elsif (!$tag) {
+ eval { run_command(['/sbin/bridge', 'vlan', 'add', 'dev', $iface, 'vid', '2-4094']) };
+ die "unable to add default vlan tags to interface $iface - $@\n" if $@;
+ }
+
+ $tag = 1 if !$tag;
+ eval { run_command(['/sbin/bridge', 'vlan', 'add', 'dev', $iface, 'vid', $tag, 'pvid', 'untagged']) };
+ die "unable to add vlan $tag to interface $iface - $@\n" if $@;
}
};
$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;
+ my $cmd = ['/usr/bin/ovs-vsctl'];
+ # first command
+ push @$cmd, '--', 'add-port', $bridge, $iface;
+ push @$cmd, "tag=$tag" if $tag;
+ push @$cmd, "trunks=". join(',', $trunks) if $trunks;
+ push @$cmd, "vlan_mode=native-untagged" if $tag && $trunks;
+
+ if ($internal) {
+ # second command
+ push @$cmd, '--', 'set', 'Interface', $iface, 'type=internal';
+ }
+
+ eval { run_command($cmd) };
+ die "can't add ovs port '$iface' - $@\n" if $@;
- $cmd .= " -- set Interface $iface type=internal" if $internal;
- system($cmd) == 0 ||
- die "can't add ovs port '$iface'\n";
disable_ipv6($iface);
};
my $activate_interface = sub {
my ($iface) = @_;
- system("/sbin/ip link set $iface up") == 0 ||
- die "can't activate interface '$iface'\n";
+ eval { run_command(['/sbin/ip', 'link', 'set', $iface, 'up']) };
+ die "can't activate interface '$iface' - $@\n" if $@;
};
sub tap_create {
die "unable to get bridge setting\n" if !$bridge;
- my $bridgemtu = &$read_bridge_mtu($bridge);
+ my $bridgemtu = read_bridge_mtu($bridge);
eval {
disable_ipv6($iface);
die "unable to get bridge setting\n" if !$bridge;
- my $bridgemtu = &$read_bridge_mtu($bridge);
+ my $bridgemtu = read_bridge_mtu($bridge);
# create veth pair
if (! -d "/sys/class/net/$veth") {
- my $cmd = "/sbin/ip link add name $veth mtu $bridgemtu type veth peer name $vethpeer mtu $bridgemtu";
- $cmd .= " addr $mac" if $mac;
- system($cmd) == 0 || die "can't create interface $veth\n";
+ my $cmd = ['/sbin/ip', 'link', 'add'];
+ # veth device + MTU
+ push @$cmd, 'name', $veth;
+ push @$cmd, 'mtu', $bridgemtu;
+ push @$cmd, 'type', 'veth';
+ # peer device + MTU
+ push @$cmd, 'peer', 'name', $vethpeer, 'mtu', $bridgemtu;
+
+ push @$cmd, 'addr', $mac if $mac;
+
+ eval { run_command($cmd) };
+ die "can't create interface $veth - $@\n" if $@;
}
# up vethpair
my ($vmid, $devid) = &$parse_tap_device_name($iface);
my ($fwbr, undef, undef, $ovsintport) = &$compute_fwbr_names($vmid, $devid);
- my $bridgemtu = &$read_bridge_mtu($bridge);
+ my $bridgemtu = read_bridge_mtu($bridge);
&$cond_create_bridge($fwbr);
&$activate_interface($fwbr);
# create vlan on $iface is not already exist
if (! -d "/sys/class/net/$ifacevlan") {
- system("/sbin/ip link add link $iface name $ifacevlan type vlan id $tag") == 0 ||
- die "can't add vlan tag $tag to interface $iface\n";
+ eval {
+ my $cmd = ['/sbin/ip', 'link', 'add'];
+ push @$cmd, 'link', $iface;
+ push @$cmd, 'name', $ifacevlan;
+ push @$cmd, 'type', 'vlan', 'id', $tag;
+ run_command($cmd);
+ };
+ die "can't add vlan tag $tag to interface $iface - $@\n" if $@;
# remove ipv6 link-local address before activation
disable_ipv6($ifacevlan);
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;
+ my $overlap = $cidr_obj->overlaps($ip_obj);
+
+ return if !defined($overlap);
+
+ return $overlap == $Net::IP::IP_B_IN_A_OVERLAP || $overlap == $Net::IP::IP_IDENTICAL;
}
+# get all currently configured addresses that have a global scope, i.e., are reachable from the
+# outside of the host and thus are neither loopback nor link-local ones
+# returns an array ref of: { addr => "IP", cidr => "IP/PREFIXLEN", family => "inet|inet6" }
+sub get_reachable_networks {
+ my $raw = '';
+ run_command([qw(ip -j addr show up scope global)], outfunc => sub { $raw .= shift });
+ my $decoded = decode_json($raw);
+
+ my $addrs = []; # filter/transform first so that we can sort correctly more easily below
+ for my $e ($decoded->@*) {
+ next if !$e->{addr_info} || grep { $_ eq 'LOOPBACK' } $e->{flags}->@*;
+ push $addrs->@*, grep { scalar(keys $_->%*) } $e->{addr_info}->@*
+ }
+ my $res = [];
+ for my $info (sort { $a->{family} cmp $b->{family} || $a->{local} cmp $b->{local} } $addrs->@*) {
+ push $res->@*, {
+ addr => $info->{local},
+ cidr => "$info->{local}/$info->{prefixlen}",
+ family => $info->{family},
+ };
+ }
+
+ return $res;
+}
+
+# get one or all local IPs that are not loopback ones, able to pick up the following ones (in order)
+# - the hostname primary resolves too, follows gai.conf (admin controlled) and will be prioritised
+# - all configured in the interfaces configuration
+# - all currently networks known to the kernel in the current (root) namespace
+# returns a single address if no parameter is passed, and all found, grouped by type, if `all => 1`
+# is passed.
+sub get_local_ip {
+ my (%param) = @_;
+
+ my $nodename = PVE::INotify::nodename();
+ my $resolved_host = eval { get_ip_from_hostname($nodename) };
+
+ return $resolved_host if defined($resolved_host) && !$param{all};
+
+ my $all = { v4 => {}, v6 => {} }; # hash to avoid duplicates and group by type
+
+ my $ifaces = PVE::INotify::read_file('interfaces', 1)->{data}->{ifaces};
+ for my $if (values $ifaces->%*) {
+ next if $if->{type} eq 'loopback' || (!defined($if->{address}) && !defined($if->{address6}));
+ my ($v4, $v6) = ($if->{address}, $if->{address6});
+
+ return ($v4 // $v6) if !$param{all}; # prefer v4, admin can override $resolved_host via hosts/gai.conf
+
+ $all->{v4}->{$v4} = 1 if defined($v4);
+ $all->{v6}->{$v6} = 1 if defined($v6);
+ }
+
+ my $live = eval { get_reachable_networks() } // [];
+ for my $info ($live->@*) {
+ my $addr = $info->{addr};
+
+ return $addr if !$param{all};
+
+ if ($info->{family} eq 'inet') {
+ $all->{v4}->{$addr} = 1;
+ } else {
+ $all->{v6}->{$addr} = 1;
+ }
+ }
+
+ return undef if !$param{all}; # getting here means no early return above triggered -> no IPs
+
+ my $res = []; # order gai.conf controlled first, then group v4 and v6, simply lexically sorted
+ if ($resolved_host) {
+ push $res->@*, $resolved_host;
+ delete $all->{v4}->{$resolved_host};
+ delete $all->{v6}->{$resolved_host};
+ }
+ push $res->@*, sort { $a cmp $b } keys $all->{v4}->%*;
+ push $res->@*, sort { $a cmp $b } keys $all->{v6}->%*;
+
+ return $res;
+}
sub get_local_ip_from_cidr {
my ($cidr) = @_;
- my $IPs = [];
+ my $IPs = {};
+ my $i = 1;
run_command(['/sbin/ip', 'address', 'show', 'to', $cidr, 'up'], outfunc => sub {
if ($_[0] =~ m!^\s*inet(?:6)?\s+($PVE::Tools::IPRE)(?:/\d+|\s+peer\s+)!) {
- push @$IPs, $1;
+ $IPs->{$1} = $i++ if !exists($IPs->{$1});
}
});
- return $IPs;
+ return [ sort { $IPs->{$a} <=> $IPs->{$b} } keys %{$IPs} ];
}
sub addr_to_ip {
return undef;
}
- my ($ip, $family);
for my $ai (@res) {
- $family = $ai->{family};
- my $tmpip = addr_to_ip($ai->{addr});
- if ($tmpip !~ m/^127\.|^::1$/) {
- $ip = $tmpip;
- last;
+ my $ip = addr_to_ip($ai->{addr});
+ if ($ip !~ m/^127\.|^::1$/) {
+ return wantarray ? ($ip, $ai->{family}) : $ip;
}
}
- if (!defined($ip) ) {
- die "hostname lookup '$hostname' failed - got local IP address '$ip'\n" if !$noerr;
- return undef;
- }
-
- return wantarray ? ($ip, $family) : $ip;
+ # NOTE: we only get here if no WAN/LAN IP was found, so this is now the error path!
+ die "address lookup for '$hostname' did not find any IP address\n" if !$noerr;
+ return undef;
}
sub lock_network {
return $res;
}
+# the canonical form of the given IP, i.e. dotted quad for IPv4 and RFC 5952 for IPv6
+sub canonical_ip {
+ my ($ip) = @_;
+
+ my $ip_obj = NetAddr::IP->new($ip) or die "invalid IP string '$ip'\n";
+
+ return $ip_obj->canon();
+}
+
+# List of unique, canonical IPs in the provided list.
+# Keeps the original order, filtering later duplicates.
+sub unique_ips {
+ my ($ips) = @_;
+
+ my $res = [];
+ my $seen = {};
+
+ for my $ip (@{$ips}) {
+ $ip = canonical_ip($ip);
+
+ next if $seen->{$ip};
+
+ $seen->{$ip} = 1;
+ push @{$res}, $ip;
+ }
+
+ return $res;
+}
+
1;
projects / pve-common.git / blobdiff