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dhcp: do not advertise link-local VIPs

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Since 2b7beb78b3804f6 it's possible to operate link-local addresses
in virtual IPs, but now these get picked up by radvd and that should
not be the case.

Reported by: @bimbar
This commit is contained in:
Franco Fichtner 2021-10-20 18:51:13 +02:00
parent f1a7b93209
commit 6970f4c4af
1 changed files with 6 additions and 4 deletions
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10
src/etc/inc/plugins.inc.d/dhcpd.inc
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@ -316,10 +316,12 @@ function dhcpd_radvd_configure($verbose = false, $blacklist = array())
}
foreach (config_read_array('virtualip', 'vip') as $vip) {
if ($vip['interface'] == $dhcpv6if && is_ipaddrv6($vip['subnet'])) {
$subnetv6 = gen_subnetv6($vip['subnet'], $vip['subnet_bits']);
$stanzas[] = "{$subnetv6}/{$vip['subnet_bits']}";
if ($vip['interface'] != $dhcpv6if || !is_ipaddrv6($vip['subnet']) || is_linklocal($vip['subnet'])) {
continue;
}
$subnetv6 = gen_subnetv6($vip['subnet'], $vip['subnet_bits']);
$stanzas[] = "{$subnetv6}/{$vip['subnet_bits']}";
}
/* VIPs may duplicate readings from system */
@ -505,7 +507,7 @@ function dhcpd_radvd_configure($verbose = false, $blacklist = array())
}
foreach (config_read_array('virtualip', 'vip') as $vip) {
if ($vip['interface'] != $if || !is_ipaddrv6($vip['subnet'])) {
if ($vip['interface'] != $if || !is_ipaddrv6($vip['subnet']) || is_linklocal($vip['subnet'])) {
continue;
}