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 $ipv4_reverse_mask = [
'0.0.0.0',
setup_tc_rate_limit($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) {
- eval { run_command(['/sbin/bridge', 'vlan', 'del', 'dev', $iface, 'vid', '1-4094']) };
- die "failed to remove default vlan tags of $iface - $@\n" if $@;
- eval { run_command(['/sbin/bridge', 'vlan', 'add', 'dev', $iface, 'vid', $tag, 'pvid', 'untagged']) };
- die "unable to add vlan $tag to interface $iface - $@\n" if $@;
-
- warn "Caution: Setting VLAN ID 1 on a VLAN aware bridge may be dangerous\n" if $tag == 1;
- } elsif (!$trunks) {
- eval { run_command(['/sbin/bridge', 'vlan', 'add', 'dev', $iface, 'vid', '2-4094']) };
- die "unable to add default vlan tags to interface $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 $@;
- }
- }
+ 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 $@;
}
};
die "unable to get bridge setting\n" if !$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/$veth") {
my ($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);
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 $addrs = decode_json($raw);
+
+ # sort by family (IPv4/IPv6) and then by addr, just for some stability
+ my $addrs_sorter = sub {
+ my ($a, $b) = @_;
+ my $family = $a->{family} cmp $b->{family};
+ return $family if $family != 0;
+ return $a->{local} cmp $b->{local};
+ };
+
+ my $res = [];
+ for my $addr ($addrs->@*) {
+ next if !exists $addr->{addr_info};
+ next if grep { $_ eq 'LOOPBACK' } $addr->{flags}->@*;
+ for my $info (sort $addrs_sorter grep { $_ && $_->{local}} $addr->{addr_info}->@*) {
+ push $res->@*, {
+ addr => $info->{local},
+ cidr => "$info->{local}/$info->{prefixlen}",
+ family => $info->{family},
+ };
+ }
+ }
+
+ 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