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nic online bridge/vlan change: link disconnect/reconnect

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We want to notify guest of the change, so it can resubmit dhcp request,
or send gratuitous arp,...

Signed-off-by: Alexandre Derumier <aderumier@odiso.com>
This commit is contained in:
Alexandre Derumier 2023-11-17 12:40:04 +01:00 committed by Wolfgang Bumiller
parent e6e6c2934d
commit 3f14f206a0
1 changed files with 13 additions and 0 deletions
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13
PVE/QemuServer.pm
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@ -5339,6 +5339,12 @@ sub vmconfig_update_net {
safe_num_ne($oldnet->{firewall}, $newnet->{firewall})) {
PVE::Network::tap_unplug($iface);
#set link_down in guest if bridge or vlan change to notify guest (dhcp renew for example)
if (safe_string_ne($oldnet->{bridge}, $newnet->{bridge}) ||
safe_num_ne($oldnet->{tag}, $newnet->{tag})) {
qemu_set_link_status($vmid, $opt, 0);
}
if (safe_string_ne($oldnet->{bridge}, $newnet->{bridge})) {
if ($have_sdn) {
PVE::Network::SDN::Vnets::del_ips_from_mac($oldnet->{bridge}, $oldnet->{macaddr}, $conf->{name});
@ -5351,6 +5357,13 @@ sub vmconfig_update_net {
} else {
PVE::Network::tap_plug($iface, $newnet->{bridge}, $newnet->{tag}, $newnet->{firewall}, $newnet->{trunks}, $newnet->{rate});
}
#set link_up in guest if bridge or vlan change to notify guest (dhcp renew for example)
if (safe_string_ne($oldnet->{bridge}, $newnet->{bridge}) ||
safe_num_ne($oldnet->{tag}, $newnet->{tag})) {
qemu_set_link_status($vmid, $opt, 1);
}
} elsif (safe_num_ne($oldnet->{rate}, $newnet->{rate})) {
# Rate can be applied on its own but any change above needs to
# include the rate in tap_plug since OVS resets everything.