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dnsmasq: configure static range for each subnet

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we don't want dynamic lease, simply define each subnet as a static range.

dhcp-range defined on a subnet is only used by ipam plugin.

This will also allow to use dhcp subnet without need to define a range.
Can be usefull for external ipam like phpipam, where you can't define ranges.

Signed-off-by: Alexandre Derumier <aderumier@odiso.com>
This commit is contained in:
Alexandre Derumier 2023-11-18 15:13:11 +01:00 committed by Thomas Lamprecht
parent 77617306c3
commit 3f764f82d1
1 changed files with 10 additions and 3 deletions
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13
src/PVE/Network/SDN/Dhcp/Dnsmasq.pm
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@ -112,11 +112,18 @@ sub configure_subnet {
sub configure_range {
my ($class, $dhcpid, $subnet_config, $range_config) = @_;
my $range_file = "$DNSMASQ_CONFIG_ROOT/$dhcpid/10-$subnet_config->{id}.ranges.conf",
my $subnet_file = "$DNSMASQ_CONFIG_ROOT/$dhcpid/10-$subnet_config->{id}.conf";
my $tag = $subnet_config->{id};
open(my $fh, '>>', $range_file) or die "Could not open file '$range_file' $!\n";
print $fh "dhcp-range=set:$tag,$range_config->{'start-address'},$range_config->{'end-address'}\n";
my ($zone, $network, $mask) = split(/-/, $tag);
if (Net::IP::ip_is_ipv4($network)) {
$mask = (2 ** $mask - 1) << (32 - $mask);
$mask = join( '.', unpack( "C4", pack( "N", $mask ) ) );
}
open(my $fh, '>>', $subnet_file) or die "Could not open file '$subnet_file' $!\n";
print $fh "dhcp-range=set:$tag,$network,static,$mask,infinite\n";
close $fh;
}