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all: sync with master; upd chlog

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This commit is contained in:
Ainar Garipov
2023-03-09 15:39:35 +03:00
parent 4f928be393
commit a21558f418
98 changed files with 2687 additions and 24734 deletions
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6
internal/dhcpd/config.go
View File

@@ -45,8 +45,10 @@ type DHCPServer interface {
AddStaticLease(l *Lease) (err error)
// RemoveStaticLease - remove a static lease
RemoveStaticLease(l *Lease) (err error)
// FindMACbyIP - find a MAC address by IP address in the currently active DHCP leases
FindMACbyIP(ip net.IP) net.HardwareAddr
// FindMACbyIP returns a MAC address by the IP address of its lease, if
// there is one.
FindMACbyIP(ip netip.Addr) (mac net.HardwareAddr)
// WriteDiskConfig4 - copy disk configuration
WriteDiskConfig4(c *V4ServerConf)

25
internal/dhcpd/dhcpd.go
View File

@@ -5,6 +5,7 @@ import (
"encoding/json"
"fmt"
"net"
"net/netip"
"path/filepath"
"time"
@@ -42,7 +43,11 @@ type Lease struct {
Hostname string `json:"hostname"`
HWAddr net.HardwareAddr `json:"mac"`
IP net.IP `json:"ip"`
// IP is the IP address leased to the client.
//
// TODO(a.garipov): Migrate leases.db and use netip.Addr.
IP net.IP `json:"ip"`
}
// Clone returns a deep copy of l.
@@ -160,7 +165,7 @@ type Interface interface {
Leases(flags GetLeasesFlags) (leases []*Lease)
SetOnLeaseChanged(onLeaseChanged OnLeaseChangedT)
FindMACbyIP(ip net.IP) (mac net.HardwareAddr)
FindMACbyIP(ip netip.Addr) (mac net.HardwareAddr)
WriteDiskConfig(c *ServerConfig)
}
@@ -174,7 +179,7 @@ type MockInterface struct {
OnEnabled func() (ok bool)
OnLeases func(flags GetLeasesFlags) (leases []*Lease)
OnSetOnLeaseChanged func(f OnLeaseChangedT)
OnFindMACbyIP func(ip net.IP) (mac net.HardwareAddr)
OnFindMACbyIP func(ip netip.Addr) (mac net.HardwareAddr)
OnWriteDiskConfig func(c *ServerConfig)
}
@@ -195,8 +200,10 @@ func (s *MockInterface) Leases(flags GetLeasesFlags) (ls []*Lease) { return s.On
// SetOnLeaseChanged implements the Interface for *MockInterface.
func (s *MockInterface) SetOnLeaseChanged(f OnLeaseChangedT) { s.OnSetOnLeaseChanged(f) }
// FindMACbyIP implements the Interface for *MockInterface.
func (s *MockInterface) FindMACbyIP(ip net.IP) (mac net.HardwareAddr) { return s.OnFindMACbyIP(ip) }
// FindMACbyIP implements the [Interface] for *MockInterface.
func (s *MockInterface) FindMACbyIP(ip netip.Addr) (mac net.HardwareAddr) {
return s.OnFindMACbyIP(ip)
}
// WriteDiskConfig implements the Interface for *MockInterface.
func (s *MockInterface) WriteDiskConfig(c *ServerConfig) { s.OnWriteDiskConfig(c) }
@@ -375,11 +382,13 @@ func (s *server) Leases(flags GetLeasesFlags) (leases []*Lease) {
return append(s.srv4.GetLeases(flags), s.srv6.GetLeases(flags)...)
}
// FindMACbyIP - find a MAC address by IP address in the currently active DHCP leases
func (s *server) FindMACbyIP(ip net.IP) net.HardwareAddr {
if ip.To4() != nil {
// FindMACbyIP returns a MAC address by the IP address of its lease, if there is
// one.
func (s *server) FindMACbyIP(ip netip.Addr) (mac net.HardwareAddr) {
if ip.Is4() {
return s.srv4.FindMACbyIP(ip)
}
return s.srv6.FindMACbyIP(ip)
}

13
internal/dhcpd/options_unix.go
View File

@@ -263,15 +263,12 @@ func (s *v4Server) prepareOptions() {
// IP-Layer Per Interface
// Since nearly all networks in the Internet currently support an MTU of
// 576 or greater, we strongly recommend the use of 576 for datagrams
// sent to non-local networks.
// Don't set the Interface MTU because client may choose the value on
// their own since it's listed in the [Host Requirements RFC]. It also
// seems the values listed there sometimes appear obsolete, see
// https://github.com/AdguardTeam/AdGuardHome/issues/5281.
//
// See https://datatracker.ietf.org/doc/html/rfc1122#section-3.3.3.
dhcpv4.Option{
Code: dhcpv4.OptionInterfaceMTU,
Value: dhcpv4.Uint16(576),
},
// [Host Requirements RFC]: https://datatracker.ietf.org/doc/html/rfc1122#section-3.3.3.
// Set the All Subnets Are Local Option to false since commonly the
// connected hosts aren't expected to be multihomed.

25
internal/dhcpd/v46_windows.go
View File

@@ -4,23 +4,26 @@ package dhcpd
// 'u-root/u-root' package, a dependency of 'insomniacslk/dhcp' package, doesn't build on Windows
import "net"
import (
"net"
"net/netip"
)
type winServer struct{}
// type check
var _ DHCPServer = winServer{}
func (winServer) ResetLeases(_ []*Lease) (err error) { return nil }
func (winServer) GetLeases(_ GetLeasesFlags) (leases []*Lease) { return nil }
func (winServer) getLeasesRef() []*Lease { return nil }
func (winServer) AddStaticLease(_ *Lease) (err error) { return nil }
func (winServer) RemoveStaticLease(_ *Lease) (err error) { return nil }
func (winServer) FindMACbyIP(_ net.IP) (mac net.HardwareAddr) { return nil }
func (winServer) WriteDiskConfig4(_ *V4ServerConf) {}
func (winServer) WriteDiskConfig6(_ *V6ServerConf) {}
func (winServer) Start() (err error) { return nil }
func (winServer) Stop() (err error) { return nil }
func (winServer) ResetLeases(_ []*Lease) (err error) { return nil }
func (winServer) GetLeases(_ GetLeasesFlags) (leases []*Lease) { return nil }
func (winServer) getLeasesRef() []*Lease { return nil }
func (winServer) AddStaticLease(_ *Lease) (err error) { return nil }
func (winServer) RemoveStaticLease(_ *Lease) (err error) { return nil }
func (winServer) FindMACbyIP(_ netip.Addr) (mac net.HardwareAddr) { return nil }
func (winServer) WriteDiskConfig4(_ *V4ServerConf) {}
func (winServer) WriteDiskConfig6(_ *V6ServerConf) {}
func (winServer) Start() (err error) { return nil }
func (winServer) Stop() (err error) { return nil }
func v4Create(_ *V4ServerConf) (s DHCPServer, err error) { return winServer{}, nil }
func v6Create(_ V6ServerConf) (s DHCPServer, err error) { return winServer{}, nil }

14
internal/dhcpd/v4_unix.go
View File

@@ -108,7 +108,7 @@ func (s *v4Server) validHostnameForClient(cliHostname string, ip net.IP) (hostna
hostname = aghnet.GenerateHostname(ip)
}
err = netutil.ValidateDomainName(hostname)
err = netutil.ValidateHostname(hostname)
if err != nil {
log.Info("dhcpv4: %s", err)
hostname = ""
@@ -200,20 +200,20 @@ func (s *v4Server) GetLeases(flags GetLeasesFlags) (leases []*Lease) {
return leases
}
// FindMACbyIP - find a MAC address by IP address in the currently active DHCP leases
func (s *v4Server) FindMACbyIP(ip net.IP) net.HardwareAddr {
// FindMACbyIP implements the [Interface] for *v4Server.
func (s *v4Server) FindMACbyIP(ip netip.Addr) (mac net.HardwareAddr) {
now := time.Now()
s.leasesLock.Lock()
defer s.leasesLock.Unlock()
ip4 := ip.To4()
if ip4 == nil {
if !ip.Is4() {
return nil
}
netIP := ip.AsSlice()
for _, l := range s.leases {
if l.IP.Equal(ip4) {
if l.IP.Equal(netIP) {
if l.Expiry.After(now) || l.IsStatic() {
return l.HWAddr
}
@@ -372,7 +372,7 @@ func (s *v4Server) AddStaticLease(l *Lease) (err error) {
return err
}
err = netutil.ValidateDomainName(hostname)
err = netutil.ValidateHostname(hostname)
if err != nil {
return fmt.Errorf("validating hostname: %w", err)
}

4
internal/dhcpd/v4_unix_test.go
View File

@@ -251,8 +251,8 @@ func TestV4Server_AddRemove_static(t *testing.T) {
},
name: "bad_hostname",
wantErrMsg: `dhcpv4: adding static lease: validating hostname: ` +
`bad domain name "bad-lbl-.local": ` +
`bad domain name label "bad-lbl-": bad domain name label rune '-'`,
`bad hostname "bad-lbl-.local": ` +
`bad hostname label "bad-lbl-": bad hostname label rune '-'`,
}}
for _, tc := range testCases {

18
internal/dhcpd/v6_unix.go
View File

@@ -6,6 +6,7 @@ import (
"bytes"
"fmt"
"net"
"net/netip"
"sync"
"time"
@@ -107,21 +108,26 @@ func (s *v6Server) getLeasesRef() []*Lease {
return s.leases
}
// FindMACbyIP - find a MAC address by IP address in the currently active DHCP leases
func (s *v6Server) FindMACbyIP(ip net.IP) net.HardwareAddr {
now := time.Now().Unix()
// FindMACbyIP implements the [Interface] for *v6Server.
func (s *v6Server) FindMACbyIP(ip netip.Addr) (mac net.HardwareAddr) {
now := time.Now()
s.leasesLock.Lock()
defer s.leasesLock.Unlock()
if !ip.Is6() {
return nil
}
netIP := ip.AsSlice()
for _, l := range s.leases {
if l.IP.Equal(ip) {
unix := l.Expiry.Unix()
if unix > now || unix == leaseExpireStatic {
if l.IP.Equal(netIP) {
if l.Expiry.After(now) || l.IsStatic() {
return l.HWAddr
}
}
}
return nil
}