TheArchive/headscale
1
0
Fork 0
mirror of https://github.com/juanfont/headscale.git synced 2024-11-23 18:15:26 +00:00
Code Issues Packages Projects Releases Wiki Activity

Make IP prefix configurable

Browse Source 
This commit makes the IP prefix used to generate addresses configurable
to users. This can be useful if you would like to use a smaller range or
if your current setup is overlapping with the current range.

The current range is left as a default
This commit is contained in:
Kristoffer Dalby 2021-08-02 20:06:26 +01:00
parent 6c903d4a2f
commit 309f868a21
4 changed files with 15 additions and 5 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
app.go
View File

@ -13,6 +13,7 @@ import (
"github.com/gin-gonic/gin"
"golang.org/x/crypto/acme/autocert"
"gorm.io/gorm"
"inet.af/netaddr"
"tailscale.com/tailcfg"
"tailscale.com/types/wgkey"
)
@ -24,6 +25,7 @@ type Config struct {
PrivateKeyPath string
DerpMap *tailcfg.DERPMap
EphemeralNodeInactivityTimeout time.Duration
IPPrefix netaddr.IPPrefix
DBtype string
DBpath string

5
app_test.go
View File

@ -6,6 +6,7 @@ import (
"testing"
"gopkg.in/check.v1"
"inet.af/netaddr"
)
func Test(t *testing.T) {
@ -36,7 +37,9 @@ func (s *Suite) ResetDB(c *check.C) {
if err != nil {
c.Fatal(err)
}
cfg := Config{}
cfg := Config{
IPPrefix: netaddr.MustParseIPPrefix("127.0.0.1/32"),
}
h = Headscale{
cfg: cfg,

4
cmd/headscale/cli/utils.go
View File

@ -14,6 +14,7 @@ import (
"github.com/juanfont/headscale"
"github.com/spf13/viper"
"gopkg.in/yaml.v2"
"inet.af/netaddr"
"tailscale.com/tailcfg"
)
@ -36,6 +37,8 @@ func LoadConfig(path string) error {
viper.SetDefault("tls_letsencrypt_cache_dir", "/var/www/.cache")
viper.SetDefault("tls_letsencrypt_challenge_type", "HTTP-01")
viper.SetDefault("ip_prefix", "100.64.0.0/10")
err := viper.ReadInConfig()
if err != nil {
return fmt.Errorf("Fatal error reading config file: %s \n", err)
@ -97,6 +100,7 @@ func getHeadscaleApp() (*headscale.Headscale, error) {
Addr: viper.GetString("listen_addr"),
PrivateKeyPath: absPath(viper.GetString("private_key_path")),
DerpMap: derpMap,
IPPrefix: netaddr.MustParseIPPrefix(viper.GetString("ip_prefix")),
EphemeralNodeInactivityTimeout: viper.GetDuration("ephemeral_node_inactivity_timeout"),

9
utils.go
View File

@ -19,6 +19,7 @@ import (
"golang.org/x/crypto/nacl/box"
"gorm.io/gorm"
"inet.af/netaddr"
"tailscale.com/types/wgkey"
)
@ -80,7 +81,7 @@ func encodeMsg(b []byte, pubKey *wgkey.Key, privKey *wgkey.Private) ([]byte, err
func (h *Headscale) getAvailableIP() (*net.IP, error) {
i := 0
for {
ip, err := getRandomIP()
ip, err := getRandomIP(h.cfg.IPPrefix)
if err != nil {
return nil, err
}
@ -93,12 +94,12 @@ func (h *Headscale) getAvailableIP() (*net.IP, error) {
break
}
}
return nil, errors.New("Could not find an available IP address in 100.64.0.0/10")
return nil, errors.New(fmt.Sprintf("Could not find an available IP address in %s", h.cfg.IPPrefix.String()))
}
func getRandomIP() (*net.IP, error) {
func getRandomIP(ipPrefix netaddr.IPPrefix) (*net.IP, error) {
mathrand.Seed(time.Now().Unix())
ipo, ipnet, err := net.ParseCIDR("100.64.0.0/10")
ipo, ipnet, err := net.ParseCIDR(ipPrefix.String())
if err == nil {
ip := ipo.To4()
// fmt.Println("In Randomize IPAddr: IP ", ip, " IPNET: ", ipnet)