clone/kvm
1
0
Fork 0
mirror of https://github.com/luckfox-eng29/kvm.git synced 2026-01-18 11:38:32 +01:00
Code Issues Packages Projects Releases Wiki Activity

feat(ntp): enhances time sync with DHCP NTP and custom servers (#625)

Browse Source 
* Ensure the mDNS mode is set every time network state changes

Eliminates (mostly) duplicate code

* Add custom NTP and HTTP time sync servers

Since the ordering may have been previously defaulted and saved as "ntp,http", but that was being ignored and fallback-defaults were being used, in Ordering, `ntp` means use the fallback NTP servers, and `http` means use the fallback HTTP URLs. Thus `ntp_user_provided` and `http_user_provided` are the user specified static lists.

* Add support for using DHCP-provided NTP server
This commit is contained in:
Marc Brooks
2025-07-11 01:04:19 -05:00
committed by GitHub
parent 584768bacf
commit 11a095c0f6
8 changed files with 166 additions and 42 deletions
Download Patch File Download Diff File Expand all files Collapse all files

44
internal/network/netif.go
View File

@@ -21,6 +21,7 @@ type NetworkInterfaceState struct {
ipv6Addr *net.IP
ipv6Addresses []IPv6Address
ipv6LinkLocal *net.IP
ntpAddresses []*net.IP
macAddr *net.HardwareAddr
l *zerolog.Logger
@@ -76,6 +77,7 @@ func NewNetworkInterfaceState(opts *NetworkInterfaceOptions) (*NetworkInterfaceS
onInitialCheck: opts.OnInitialCheck,
cbConfigChange: opts.OnConfigChange,
config: opts.NetworkConfig,
ntpAddresses: make([]*net.IP, 0),
}
// create the dhcp client
@@ -89,7 +91,7 @@ func NewNetworkInterfaceState(opts *NetworkInterfaceOptions) (*NetworkInterfaceS
opts.Logger.Error().Err(err).Msg("failed to update network state")
return
}
_ = s.updateNtpServersFromLease(lease)
_ = s.setHostnameIfNotSame()
opts.OnDhcpLeaseChange(lease)
@@ -135,6 +137,27 @@ func (s *NetworkInterfaceState) IPv6String() string {
return s.ipv6Addr.String()
}
func (s *NetworkInterfaceState) NtpAddresses() []*net.IP {
return s.ntpAddresses
}
func (s *NetworkInterfaceState) NtpAddressesString() []string {
ntpServers := []string{}
if s != nil {
s.l.Debug().Any("s", s).Msg("getting NTP address strings")
if len(s.ntpAddresses) > 0 {
for _, server := range s.ntpAddresses {
s.l.Debug().IPAddr("server", *server).Msg("converting NTP address")
ntpServers = append(ntpServers, server.String())
}
}
}
return ntpServers
}
func (s *NetworkInterfaceState) MAC() *net.HardwareAddr {
return s.macAddr
}
@@ -318,6 +341,25 @@ func (s *NetworkInterfaceState) update() (DhcpTargetState, error) {
return dhcpTargetState, nil
}
func (s *NetworkInterfaceState) updateNtpServersFromLease(lease *udhcpc.Lease) error {
if lease != nil && len(lease.NTPServers) > 0 {
s.l.Info().Msg("lease found, updating DHCP NTP addresses")
s.ntpAddresses = make([]*net.IP, 0, len(lease.NTPServers))
for _, ntpServer := range lease.NTPServers {
if ntpServer != nil {
s.l.Info().IPAddr("ntp_server", ntpServer).Msg("NTP server found in lease")
s.ntpAddresses = append(s.ntpAddresses, &ntpServer)
}
}
} else {
s.l.Info().Msg("no NTP servers found in lease")
s.ntpAddresses = make([]*net.IP, 0, len(s.config.TimeSyncNTPServers))
}
return nil
}
func (s *NetworkInterfaceState) CheckAndUpdateDhcp() error {
dhcpTargetState, err := s.update()
if err != nil {