Remove unused params or returns

.golangci.yaml

@@ -29,21 +29,20 @@ linters:
     - testpackage
     - stylecheck
     - wrapcheck
-    - paralleltest
     - ifshort
     - gomnd
     - goerr113
     - errorlint
     - forcetypeassert
     - errname
-    - unparam
-    - makezero
     - gosec
     - gocritic
     - forbidigo
     - dupl
     - goconst
     - varnamelen
+    - makezero
+    - paralleltest
 
     # We might want to enable this, but it might be a lot of work
     - cyclop

api.go

@@ -319,20 +319,12 @@ func (h *Headscale) getMapResponse(
 		return nil, err
 	}
 
-	dnsConfig, err := getMapResponseDNSConfig(
+	dnsConfig := getMapResponseDNSConfig(
 		h.cfg.DNSConfig,
 		h.cfg.BaseDomain,
 		*m,
 		peers,
 	)
-	if err != nil {
-		log.Error().
-			Str("func", "getMapResponse").
-			Err(err).
-			Msg("Failed generate the DNSConfig")
-
-		return nil, err
-	}
 
 	resp := tailcfg.MapResponse{
 		KeepAlive:    false,
@@ -378,7 +370,6 @@ func (h *Headscale) getMapResponse(
 func (h *Headscale) getMapKeepAliveResponse(
 	mKey wgkey.Key,
 	req tailcfg.MapRequest,
-	m *Machine,
 ) ([]byte, error) {
 	resp := tailcfg.MapResponse{
 		KeepAlive: true,

app.go

@@ -187,13 +187,9 @@ func NewHeadscale(cfg Config) (*Headscale, error) {
 	}
 
 	if h.cfg.DNSConfig != nil && h.cfg.DNSConfig.Proxied { // if MagicDNS
-		magicDNSDomains, err := generateMagicDNSRootDomains(
+		magicDNSDomains := generateMagicDNSRootDomains(
 			h.cfg.IPPrefix,
-			h.cfg.BaseDomain,
 		)
-		if err != nil {
-			return nil, err
-		}
 		// we might have routes already from Split DNS
 		if h.cfg.DNSConfig.Routes == nil {
 			h.cfg.DNSConfig.Routes = make(map[string][]dnstype.Resolver)

cmd/headscale/cli/nodes.go

@@ -266,7 +266,6 @@ var deleteNodeCmd = &cobra.Command{
 
 func sharingWorker(
 	cmd *cobra.Command,
-	args []string,
 ) (string, *v1.Machine, *v1.Namespace, error) {
 	output, _ := cmd.Flags().GetString("output")
 	namespaceStr, err := cmd.Flags().GetString("namespace")
@@ -324,7 +323,7 @@ var shareMachineCmd = &cobra.Command{
 	Use:   "share",
 	Short: "Shares a node from the current namespace to the specified one",
 	Run: func(cmd *cobra.Command, args []string) {
-		output, machine, namespace, err := sharingWorker(cmd, args)
+		output, machine, namespace, err := sharingWorker(cmd)
 		if err != nil {
 			ErrorOutput(
 				err,
@@ -363,7 +362,7 @@ var unshareMachineCmd = &cobra.Command{
 	Use:   "unshare",
 	Short: "Unshares a node from the specified namespace",
 	Run: func(cmd *cobra.Command, args []string) {
-		output, machine, namespace, err := sharingWorker(cmd, args)
+		output, machine, namespace, err := sharingWorker(cmd)
 		if err != nil {
 			ErrorOutput(
 				err,

dns.go

@@ -32,8 +32,7 @@ import (
 // This allows us to then calculate the subnets included in the subsequent class block and generate the entries.
 func generateMagicDNSRootDomains(
 	ipPrefix netaddr.IPPrefix,
-	baseDomain string,
-) ([]dnsname.FQDN, error) {
+) []dnsname.FQDN {
 	// TODO(juanfont): we are not handing out IPv6 addresses yet
 	// and in fact this is Tailscale.com's range (note the fd7a:115c:a1e0: range in the fc00::/7 network)
 	ipv6base := dnsname.FQDN("0.e.1.a.c.5.1.1.a.7.d.f.ip6.arpa.")
@@ -70,7 +69,7 @@ func generateMagicDNSRootDomains(
 		fqdns = append(fqdns, fqdn)
 	}
 
-	return fqdns, nil
+	return fqdns
 }
 
 func getMapResponseDNSConfig(
@@ -78,7 +77,7 @@ func getMapResponseDNSConfig(
 	baseDomain string,
 	m Machine,
 	peers Machines,
-) (*tailcfg.DNSConfig, error) {
+) *tailcfg.DNSConfig {
 	var dnsConfig *tailcfg.DNSConfig
 	if dnsConfigOrig != nil && dnsConfigOrig.Proxied { // if MagicDNS is enabled
 		// Only inject the Search Domain of the current namespace - shared nodes should use their full FQDN
@@ -101,5 +100,5 @@ func getMapResponseDNSConfig(
 		dnsConfig = dnsConfigOrig
 	}
 
-	return dnsConfig, nil
+	return dnsConfig
 }

dns_test.go

@@ -11,8 +11,7 @@ import (
 
 func (s *Suite) TestMagicDNSRootDomains100(c *check.C) {
 	prefix := netaddr.MustParseIPPrefix("100.64.0.0/10")
-	domains, err := generateMagicDNSRootDomains(prefix, "foobar.headscale.net")
-	c.Assert(err, check.IsNil)
+	domains := generateMagicDNSRootDomains(prefix)
 
 	found := false
 	for _, domain := range domains {
@@ -47,8 +46,7 @@ func (s *Suite) TestMagicDNSRootDomains100(c *check.C) {
 
 func (s *Suite) TestMagicDNSRootDomains172(c *check.C) {
 	prefix := netaddr.MustParseIPPrefix("172.16.0.0/16")
-	domains, err := generateMagicDNSRootDomains(prefix, "headscale.net")
-	c.Assert(err, check.IsNil)
+	domains := generateMagicDNSRootDomains(prefix)
 
 	found := false
 	for _, domain := range domains {
@@ -178,8 +176,7 @@ func (s *Suite) TestDNSConfigMapResponseWithMagicDNS(c *check.C) {
 	m1peers, err := h.getPeers(m1)
 	c.Assert(err, check.IsNil)
 
-	dnsConfig, err := getMapResponseDNSConfig(&dnsConfigOrig, baseDomain, *m1, m1peers)
-	c.Assert(err, check.IsNil)
+	dnsConfig := getMapResponseDNSConfig(&dnsConfigOrig, baseDomain, *m1, m1peers)
 	c.Assert(dnsConfig, check.NotNil)
 	c.Assert(len(dnsConfig.Routes), check.Equals, 2)
 
@@ -303,8 +300,7 @@ func (s *Suite) TestDNSConfigMapResponseWithoutMagicDNS(c *check.C) {
 	m1peers, err := h.getPeers(m1)
 	c.Assert(err, check.IsNil)
 
-	dnsConfig, err := getMapResponseDNSConfig(&dnsConfigOrig, baseDomain, *m1, m1peers)
-	c.Assert(err, check.IsNil)
+	dnsConfig := getMapResponseDNSConfig(&dnsConfigOrig, baseDomain, *m1, m1peers)
 	c.Assert(dnsConfig, check.NotNil)
 	c.Assert(len(dnsConfig.Routes), check.Equals, 0)
 	c.Assert(len(dnsConfig.Domains), check.Equals, 1)

poll.go

@@ -492,7 +492,7 @@ func (h *Headscale) scheduledPollWorker(
 			return
 
 		case <-keepAliveTicker.C:
-			data, err := h.getMapKeepAliveResponse(mKey, req, m)
+			data, err := h.getMapKeepAliveResponse(mKey, req)
 			if err != nil {
 				log.Error().
 					Str("func", "keepAlive").