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Switch most everything to netip in prep for ipv6 in the overlay (#1173)

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This commit is contained in:
Nate Brown
2024-07-31 10:18:56 -05:00
committed by GitHub
parent 00458302ca
commit e264a0ff88
79 changed files with 1900 additions and 2682 deletions
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23
overlay/tun_freebsd.go
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@@ -9,7 +9,7 @@ import (
"fmt"
"io"
"io/fs"
"net"
"net/netip"
"os"
"os/exec"
"strconv"
@@ -17,10 +17,9 @@ import (
"syscall"
"unsafe"
"github.com/gaissmai/bart"
"github.com/sirupsen/logrus"
"github.com/slackhq/nebula/cidr"
"github.com/slackhq/nebula/config"
"github.com/slackhq/nebula/iputil"
"github.com/slackhq/nebula/util"
)
@@ -48,10 +47,10 @@ type ifreqDestroy struct {
type tun struct {
Device string
cidr *net.IPNet
cidr netip.Prefix
MTU int
Routes atomic.Pointer[[]Route]
routeTree atomic.Pointer[cidr.Tree4[iputil.VpnIp]]
routeTree atomic.Pointer[bart.Table[netip.Addr]]
l *logrus.Logger
io.ReadWriteCloser
@@ -79,11 +78,11 @@ func (t *tun) Close() error {
return nil
}
func newTunFromFd(_ *config.C, _ *logrus.Logger, _ int, _ *net.IPNet) (*tun, error) {
func newTunFromFd(_ *config.C, _ *logrus.Logger, _ int, _ netip.Prefix) (*tun, error) {
return nil, fmt.Errorf("newTunFromFd not supported in FreeBSD")
}
func newTun(c *config.C, l *logrus.Logger, cidr *net.IPNet, _ bool) (*tun, error) {
func newTun(c *config.C, l *logrus.Logger, cidr netip.Prefix, _ bool) (*tun, error) {
// Try to open existing tun device
var file *os.File
var err error
@@ -174,7 +173,7 @@ func newTun(c *config.C, l *logrus.Logger, cidr *net.IPNet, _ bool) (*tun, error
func (t *tun) Activate() error {
var err error
// TODO use syscalls instead of exec.Command
cmd := exec.Command("/sbin/ifconfig", t.Device, t.cidr.String(), t.cidr.IP.String())
cmd := exec.Command("/sbin/ifconfig", t.Device, t.cidr.String(), t.cidr.Addr().String())
t.l.Debug("command: ", cmd.String())
if err = cmd.Run(); err != nil {
return fmt.Errorf("failed to run 'ifconfig': %s", err)
@@ -233,12 +232,12 @@ func (t *tun) reload(c *config.C, initial bool) error {
return nil
}
func (t *tun) RouteFor(ip iputil.VpnIp) iputil.VpnIp {
_, r := t.routeTree.Load().MostSpecificContains(ip)
func (t *tun) RouteFor(ip netip.Addr) netip.Addr {
r, _ := t.routeTree.Load().Lookup(ip)
return r
}
func (t *tun) Cidr() *net.IPNet {
func (t *tun) Cidr() netip.Prefix {
return t.cidr
}
@@ -253,7 +252,7 @@ func (t *tun) NewMultiQueueReader() (io.ReadWriteCloser, error) {
func (t *tun) addRoutes(logErrors bool) error {
routes := *t.Routes.Load()
for _, r := range routes {
if r.Via == nil || !r.Install {
if !r.Via.IsValid() || !r.Install {
// We don't allow route MTUs so only install routes with a via
continue
}