fix: networking/interfaces

fix: networking / services / and testing
2026-06-23 17:40:44 +02:00 · 2026-06-23 17:40:17 +02:00 · 2026-06-23 17:16:01 +02:00 · 2026-06-23 14:27:06 +02:00 · 2026-06-23 13:15:39 +02:00 · 2026-06-23 11:50:55 +02:00
10 changed files with 469 additions and 21 deletions
@@ -278,11 +278,11 @@ func runServer() {
 		// is the follow-up (M5 partial).
 		w.Header().Set("Content-Security-Policy",
 			"default-src 'self'; "+
-				"script-src 'self' 'unsafe-inline' https://cdn.jsdelivr.net; "+
+				"script-src 'self' 'unsafe-inline' 'unsafe-eval' https://cdn.jsdelivr.net; "+
 				"style-src 'self' 'unsafe-inline' https://cdn.jsdelivr.net; "+
 				"img-src 'self' data: https:; "+
 				"connect-src 'self'; "+
-				"font-src 'self' data: https://cdn.jsdelivr.net")
+				"font-src 'self' data: https://cdn.jsdelivr.net https://fonts.scalar.com")
 		w.Header().Set("Content-Type", "text/html")
 		w.Write([]byte(`<!doctype html><html><head><title>API</title>
 <meta charset="utf-8"><meta name="viewport" content="width=device-width,initial-scale=1">
@@ -0,0 +1,72 @@
 package main
 import (
 	"strings"
 	"testing"
 )
 // TestReleaseAPIURL pins the contract that downstream code (the updater and
 // /install.sh) relies on: only https://host/owner/repo produces an API URL,
 // everything else errors. Plain HTTP must be rejected — M7 makes auto-update
 // only trust TLS-protected release feeds, since the binary it downloads is
 // exec'd as root.
 func TestReleaseAPIURL(t *testing.T) {
 	tests := []struct {
 		name    string
 		in      string
 		want    string
 		wantErr string // substring expected in the error message; "" means success
 	}{
 		{
 			name: "valid https repo",
 			in:   "https://tea.example.com/owner/repo",
 			want: "https://tea.example.com/api/v1/repos/owner/repo/releases/latest",
 		},
 		{
 			name:    "http rejected",
 			in:      "http://tea.example.com/owner/repo",
 			wantErr: "https",
 		},
 		{
 			name:    "ssh scheme rejected",
 			in:      "ssh://tea.example.com/owner/repo",
 			wantErr: "https",
 		},
 		{
 			name:    "missing repo segment",
 			in:      "https://tea.example.com/owner",
 			wantErr: "owner/repo",
 		},
 		{
 			name:    "extra path segments",
 			in:      "https://tea.example.com/owner/repo/extra",
 			wantErr: "owner/repo",
 		},
 		{
 			name:    "empty",
 			in:      "",
 			wantErr: "https",
 		},
 	}
 	for _, tt := range tests {
 		t.Run(tt.name, func(t *testing.T) {
 			got, err := releaseAPIURL(tt.in)
 			if tt.wantErr == "" {
 				if err != nil {
 					t.Fatalf("unexpected error: %v", err)
 				}
 				if got != tt.want {
 					t.Errorf("got %q, want %q", got, tt.want)
 				}
 				return
 			}
 			if err == nil {
 				t.Fatalf("expected error containing %q, got nil (result %q)", tt.wantErr, got)
 			}
 			if !strings.Contains(err.Error(), tt.wantErr) {
 				t.Errorf("error %q does not contain %q", err.Error(), tt.wantErr)
 			}
 		})
 	}
 }
@@ -32,7 +32,7 @@ func (m *Module) Permissions() []rbac.Permission {
 }
 func (m *Module) Register(api huma.API) {
-	registerReads(api)
+	registerReads(api, m)
 	registerWrites(api, m)
 	registerHosts(api)
 }
@@ -87,6 +87,30 @@ func TestNetworkingHandlers(t *testing.T) {
 		t.Errorf("list interfaces: got %d, want %d", resp.Code, http.StatusOK)
 	}
 	// 1b. Test GET /api/networking/interfaces/{name} (used by edit-form prefill).
 	// Asserts the backend's Snapshot output is returned verbatim as the body, so
 	// the same shape can feed straight into PUT.
 	resp = api.Get("/api/networking/interfaces/eth0")
 	if resp.Code != http.StatusOK {
 		t.Errorf("get interface: got %d, want %d", resp.Code, http.StatusOK)
 	}
 	var ifaceRes GetInterfaceConfigOutput
 	if err := json.Unmarshal(resp.Body.Bytes(), &ifaceRes.Body); err != nil {
 		t.Fatal(err)
 	}
 	if ifaceRes.Body.Method != "dhcp" || ifaceRes.Body.Address != "192.168.1.10/24" {
 		t.Errorf("get interface: got %+v, want snapshot result", ifaceRes.Body)
 	}
 	// Same endpoint with no backend should return 501.
 	noBackend := &Module{}
 	noBackendMux := http.NewServeMux()
 	noBackendAPI := humatest.Wrap(t, humago.New(noBackendMux, huma.DefaultConfig("Test", "1.0.0")))
 	noBackend.Register(noBackendAPI)
 	if got := noBackendAPI.Get("/api/networking/interfaces/eth0").Code; got != http.StatusNotImplemented {
 		t.Errorf("get interface without backend: got %d, want 501", got)
 	}
 	// 2. Test GET /api/networking/routes
 	resp = api.Get("/api/networking/routes")
 	if resp.Code != http.StatusOK {
@@ -388,3 +412,69 @@ func TestBackendImplementations(t *testing.T) {
 		t.Fatal(err)
 	}
 }
 func TestGetInterfaceConfigAugment(t *testing.T) {
 	mux := http.NewServeMux()
 	api := humatest.Wrap(t, humago.New(mux, huma.DefaultConfig("Test", "1.0.0")))
 	be := &mockBackend{
 		name: "mockbe",
 		snapshotResult: IfaceConfig{
 			Method: "dhcp",
 		},
 	}
 	m := &Module{be: be}
 	m.Register(api)
 	tempResolv := filepath.Join(t.TempDir(), "resolv.conf")
 	if err := os.WriteFile(tempResolv, []byte("nameserver 1.1.1.1\nnameserver 8.8.8.8\n"), 0644); err != nil {
 		t.Fatal(err)
 	}
 	oldResolv := resolvConf
 	resolvConf = tempResolv
 	defer func() { resolvConf = oldResolv }()
 	oscmd.SetMock("ip", func(args []string) oscmd.MockCommand {
 		argStr := strings.Join(args, " ")
 		if strings.Contains(argStr, "addr show") {
 			out := `[{"ifname": "eth0", "operstate": "UP", "address": "aa:bb:cc:dd:ee:ff", "mtu": 1500, "addr_info": [{"family": "inet", "local": "192.168.1.10", "prefixlen": 24}, {"family": "inet6", "local": "2001:db8::10", "prefixlen": 64}]}]`
 			return oscmd.MockCommand{Stdout: out, ExitCode: 0}
 		}
 		if strings.Contains(argStr, "route show") && !strings.Contains(argStr, "-6") {
 			out := `[{"dst": "default", "gateway": "192.168.1.1", "dev": "eth0"}]`
 			return oscmd.MockCommand{Stdout: out, ExitCode: 0}
 		}
 		if strings.Contains(argStr, "-6") && strings.Contains(argStr, "route show") {
 			out := `[{"dst": "default", "gateway": "2001:db8::1", "dev": "eth0"}]`
 			return oscmd.MockCommand{Stdout: out, ExitCode: 0}
 		}
 		return oscmd.MockCommand{ExitCode: 1}
 	})
 	defer oscmd.ClearMocks()
 	resp := api.Get("/api/networking/interfaces/eth0")
 	if resp.Code != http.StatusOK {
 		t.Errorf("get interface: got %d, want %d", resp.Code, http.StatusOK)
 	}
 	var ifaceRes GetInterfaceConfigOutput
 	if err := json.Unmarshal(resp.Body.Bytes(), &ifaceRes.Body); err != nil {
 		t.Fatal(err)
 	}
 	if ifaceRes.Body.Method != "dhcp" {
 		t.Errorf("expected Method to be dhcp, got %s", ifaceRes.Body.Method)
 	}
 	if ifaceRes.Body.Address != "192.168.1.10" || ifaceRes.Body.Prefix != 24 {
 		t.Errorf("expected augmented Address 192.168.1.10/24, got %s/%d", ifaceRes.Body.Address, ifaceRes.Body.Prefix)
 	}
 	if ifaceRes.Body.Gateway != "192.168.1.1" {
 		t.Errorf("expected augmented Gateway 192.168.1.1, got %s", ifaceRes.Body.Gateway)
 	}
 	if len(ifaceRes.Body.DNS) != 2 || ifaceRes.Body.DNS[0] != "1.1.1.1" || ifaceRes.Body.DNS[1] != "8.8.8.8" {
 		t.Errorf("expected augmented DNS [1.1.1.1, 8.8.8.8], got %v", ifaceRes.Body.DNS)
 	}
 	if ifaceRes.Body.IPv6 == nil || ifaceRes.Body.IPv6.Method != "auto" || ifaceRes.Body.IPv6.Address != "2001:db8::10" || ifaceRes.Body.IPv6.Prefix != 64 || ifaceRes.Body.IPv6.Gateway != "2001:db8::1" {
 		t.Errorf("expected augmented IPv6, got %+v", ifaceRes.Body.IPv6)
 	}
 }
@@ -46,11 +46,19 @@ func (b *nmcliBackend) Snapshot(ctx context.Context, iface string) (IfaceConfig,
 		return IfaceConfig{Method: "dhcp"}, nil
 	}
 	// nmcli's `con show <NAME>` parser does NOT honor `--` as an end-of-options
 	// separator; passing it makes nmcli look for a connection literally named
 	// "--" and fail. `conn` comes from nmcli's own active-connections list (see
 	// connForIface), so it's already validated — no shell-metacharacter risk.
 	// Same applies to con up / con down / con modify below.
 	out, err := oscmd.RunContext(ctx, "nmcli", "-t", "-f",
 		"ipv4.method,ipv4.addresses,ipv4.gateway,ipv4.dns,ipv4.routes,ipv6.method,ipv6.addresses,ipv6.gateway",
-		"con", "show", "--", conn)
+		"con", "show", conn)
 	if err != nil {
-		return IfaceConfig{}, fmt.Errorf("nmcli con show %s: %w", conn, err)
+		// nmcli can refuse the read (connection state odd, permission, terse-mode
 		// quirks). Fall back to DHCP defaults so the prefill endpoint still
 		// returns a usable form, mirroring the networkd / ifupdown fallback.
 		return IfaceConfig{Method: "dhcp"}, nil
 	}
 	return parseNmcliSnapshot(out), nil
@@ -159,9 +167,9 @@ func (b *nmcliBackend) Apply(ctx context.Context, iface string, cfg IfaceConfig)
 		return fmt.Errorf("cannot apply: %w", err)
 	}
-	// Build the nmcli con modify arguments. Note: conn is safe to place after
+	// conn comes from nmcli's own active list (connForIface), not user input.
-	// -- since it comes from nmcli output, not directly from the user.
+	// nmcli's con subcommands don't honor "--" as an end-of-options separator.
-	args := []string{"con", "modify", "--", conn}
+	args := []string{"con", "modify", conn}
 	switch cfg.Method {
 	case "static":
@@ -222,7 +230,7 @@ func (b *nmcliBackend) Apply(ctx context.Context, iface string, cfg IfaceConfig)
 	}
 	// Bring the connection up to apply changes.
-	if _, err := oscmd.RunContext(ctx, "nmcli", "con", "up", "--", conn); err != nil {
+	if _, err := oscmd.RunContext(ctx, "nmcli", "con", "up", conn); err != nil {
 		return fmt.Errorf("nmcli con up: %w", err)
 	}
 	return nil
@@ -235,7 +243,7 @@ func (b *nmcliBackend) SetLinkUp(ctx context.Context, iface string) error {
 		_, err = oscmd.RunContext(ctx, "ip", "link", "set", "--", iface, "up")
 		return err
 	}
-	_, err = oscmd.RunContext(ctx, "nmcli", "con", "up", "--", conn)
+	_, err = oscmd.RunContext(ctx, "nmcli", "con", "up", conn)
 	return err
 }
@@ -245,7 +253,7 @@ func (b *nmcliBackend) SetLinkDown(ctx context.Context, iface string) error {
 		_, err = oscmd.RunContext(ctx, "ip", "link", "set", "--", iface, "down")
 		return err
 	}
-	_, err = oscmd.RunContext(ctx, "nmcli", "con", "down", "--", conn)
+	_, err = oscmd.RunContext(ctx, "nmcli", "con", "down", conn)
 	return err
 }
@@ -3,6 +3,8 @@ package networking
 import (
 	"context"
 	"encoding/json"
 	"fmt"
 	"net/netip"
 	"os"
 	"strconv"
 	"strings"
@@ -53,7 +55,48 @@ type DNSOutput struct {
 	}
 }
-func registerReads(api huma.API) {
+// GetInterfaceConfigInput carries the path param; matches the PUT endpoint's
 // IfacePathInput so the frontend can use the same path for both verbs.
 type GetInterfaceConfigInput struct {
 	Name string `path:"name" example:"eth0" doc:"Interface name"`
 }
 // GetInterfaceConfigOutput returns the same IfaceConfig shape that PUT
 // accepts, so the form can be pre-filled directly from this response.
 type GetInterfaceConfigOutput struct {
 	Body IfaceConfig
 }
 func registerReads(api huma.API, m *Module) {
 	huma.Register(api, huma.Operation{
 		OperationID: "networking-get-interface",
 		Method:      "GET",
 		Path:        "/api/networking/interfaces/{name}",
 		Summary:     "Get an interface's current configuration",
 		Description: "Returns the IfaceConfig the backend currently has for this " +
 			"interface (method, address/prefix, gateway, DNS, IPv6). Same schema as " +
 			"PUT /api/networking/interfaces/{name}, so the frontend can prefill an " +
 			"edit form from this response directly. Returns 501 when no backend was " +
 			"detected (nmcli / networkd / ifupdown).",
 		Tags:     []string{tagNetworking},
 		Metadata: op("read"),
 		Errors:   readErrors,
 	}, func(ctx context.Context, in *GetInterfaceConfigInput) (*GetInterfaceConfigOutput, error) {
 		if m.be == nil {
 			return nil, huma.Error501NotImplemented("", errNoBackend)
 		}
 		if err := validateIface(in.Name); err != nil {
 			return nil, err
 		}
 		cfg, err := m.be.Snapshot(ctx, in.Name)
 		if err != nil {
 			return nil, huma.Error500InternalServerError("snapshot failed", err)
 		}
 		augmentWithLiveState(ctx, in.Name, &cfg)
 		return &GetInterfaceConfigOutput{Body: cfg}, nil
 	})
 	huma.Register(api, huma.Operation{
 		OperationID: "networking-list-interfaces",
 		Method:      "GET",
@@ -209,3 +252,113 @@ func parseResolv(text string) []string {
 	}
 	return servers
 }
 func getLiveInterface(ctx context.Context, iface string) (*Interface, error) {
 	out, err := oscmd.RunContext(ctx, "ip", "-j", "addr", "show", "--", iface)
 	if err != nil {
 		out, err = oscmd.RunContext(ctx, "ip", "-j", "addr")
 		if err != nil {
 			return nil, err
 		}
 	}
 	ifaces, err := parseInterfaces(out)
 	if err != nil {
 		return nil, err
 	}
 	for i := range ifaces {
 		if ifaces[i].Name == iface {
 			return &ifaces[i], nil
 		}
 	}
 	return nil, fmt.Errorf("interface %s not found in ip addr output", iface)
 }
 func getLiveGateway(ctx context.Context, iface string) string {
 	routeOut, err := oscmd.RunContext(ctx, "ip", "-j", "route", "show", "dev", "--", iface)
 	if err != nil {
 		routeOut, err = oscmd.RunContext(ctx, "ip", "-j", "route")
 		if err != nil {
 			return ""
 		}
 	}
 	routes, err := parseRoutes(routeOut)
 	if err != nil {
 		return ""
 	}
 	for _, r := range routes {
 		if r.Destination == "default" && (r.Interface == iface || r.Interface == "") && r.Gateway != "" {
 			return r.Gateway
 		}
 	}
 	return ""
 }
 func getLiveIPv6Gateway(ctx context.Context, iface string) string {
 	routeOut, err := oscmd.RunContext(ctx, "ip", "-6", "-j", "route", "show", "dev", "--", iface)
 	if err != nil {
 		routeOut, err = oscmd.RunContext(ctx, "ip", "-6", "-j", "route")
 		if err != nil {
 			return ""
 		}
 	}
 	routes, err := parseRoutes(routeOut)
 	if err != nil {
 		return ""
 	}
 	for _, r := range routes {
 		if r.Destination == "default" && (r.Interface == iface || r.Interface == "") && r.Gateway != "" {
 			return r.Gateway
 		}
 	}
 	return ""
 }
 func augmentWithLiveState(ctx context.Context, iface string, cfg *IfaceConfig) {
 	liveIface, err := getLiveInterface(ctx, iface)
 	if err != nil {
 		return
 	}
 	// Prefill IPv4 address and prefix if empty
 	if cfg.Address == "" && len(liveIface.IPv4) > 0 {
 		addr, prefix := splitCIDR(liveIface.IPv4[0])
 		if addr != "" {
 			cfg.Address = addr
 			cfg.Prefix = prefix
 		}
 	}
 	// Prefill Gateway if empty
 	if cfg.Gateway == "" {
 		cfg.Gateway = getLiveGateway(ctx, iface)
 	}
 	// Prefill DNS if empty
 	if len(cfg.DNS) == 0 {
 		if data, err := os.ReadFile(resolvConf); err == nil {
 			cfg.DNS = parseResolv(string(data))
 		}
 	}
 	// Prefill IPv6 if present and method is not ignore
 	if cfg.IPv6 == nil {
 		cfg.IPv6 = &IPv6Config{Method: "auto"}
 	}
 	if cfg.IPv6.Method != "ignore" {
 		// Capture first global IPv6 if address is empty
 		if cfg.IPv6.Address == "" {
 			for _, c := range liveIface.IPv6 {
 				addr, prefix := splitCIDR(c)
 				if ip, err := netip.ParseAddr(addr); err == nil && !ip.IsLinkLocalUnicast() {
 					cfg.IPv6.Address = addr
 					cfg.IPv6.Prefix = prefix
 					break
 				}
 			}
 		}
 		// Capture IPv6 default gateway if empty
 		if cfg.IPv6.Gateway == "" {
 			cfg.IPv6.Gateway = getLiveIPv6Gateway(ctx, iface)
 		}
 	}
 }
@@ -65,6 +65,10 @@ type RemoveInput struct {
 	Name string `path:"name" example:"htop" doc:"Package to remove"`
 }
 type UpgradeOneInput struct {
 	Name string `path:"name" example:"htop" doc:"Package to upgrade"`
 }
 // SSE event types for streaming package operations.
 type PkgOutputEvent struct {
 	Line string `json:"line" doc:"One line of the package manager's terminal output"`
@@ -162,6 +166,25 @@ func registerPackages(api huma.API, pm manager) {
 		bin, args := pm.upgradeArgs()
 		streamOp(ctx, send, bin, args)
 	})
 	sse.Register(api, huma.Operation{
 		OperationID: "packages-upgrade-one",
 		Method:      "POST",
 		Path:        "/api/packages/upgrade/{name}",
 		Summary:     "Upgrade a single package (streamed)",
 		Description: "Upgrades the named package to its latest version, streaming the " +
 			"package manager's output live. apt uses `install --only-upgrade` so the " +
 			"package must already be installed; dnf/pacman handle this natively.",
 		Tags:     []string{tagPackages},
 		Metadata: op("write"),
 	}, pkgEvents, func(ctx context.Context, in *UpgradeOneInput, send sse.Sender) {
 		if validateName(in.Name) != nil {
 			send.Data(PkgErrorEvent{Message: "invalid package name: " + in.Name})
 			return
 		}
 		bin, args := pm.upgradeOneArgs(in.Name)
 		streamOp(ctx, send, bin, args)
 	})
 }
 // streamOp runs a package write and streams its combined output to the client.
@@ -260,11 +283,11 @@ func result(pm manager, pkgs []Package) *ListOutput {
 func (m manager) installArgs(name string) (string, []string) {
 	switch m.name {
 	case "dnf":
-		return "dnf", []string{"install", "-y", "--", name}
+		return "dnf", []string{"install", "-y", name}
 	case "apt":
-		return "apt-get", []string{"install", "-y", "--", name}
+		return "apt-get", []string{"install", "-y", name}
 	case "pacman":
-		return "pacman", []string{"-S", "--noconfirm", "--", name}
+		return "pacman", []string{"-S", "--noconfirm", name}
 	}
 	return "", nil
 }
@@ -272,11 +295,11 @@ func (m manager) installArgs(name string) (string, []string) {
 func (m manager) removeArgs(name string) (string, []string) {
 	switch m.name {
 	case "dnf":
-		return "dnf", []string{"remove", "-y", "--", name}
+		return "dnf", []string{"remove", "-y", name}
 	case "apt":
-		return "apt-get", []string{"remove", "-y", "--", name}
+		return "apt-get", []string{"remove", "-y", name}
 	case "pacman":
-		return "pacman", []string{"-R", "--noconfirm", "--", name}
+		return "pacman", []string{"-R", "--noconfirm", name}
 	}
 	return "", nil
 }
@@ -293,6 +316,21 @@ func (m manager) upgradeArgs() (string, []string) {
 	return "", nil
 }
 // upgradeOneArgs upgrades a single package to its latest version. apt's
 // `install --only-upgrade` is the safe variant (won't install if absent);
 // pacman -S re-syncs to latest; dnf upgrade is naturally scoped by name.
 func (m manager) upgradeOneArgs(name string) (string, []string) {
 	switch m.name {
 	case "dnf":
 		return "dnf", []string{"upgrade", "-y", name}
 	case "apt":
 		return "apt-get", []string{"install", "--only-upgrade", "-y", name}
 	case "pacman":
 		return "pacman", []string{"-S", "--noconfirm", name}
 	}
 	return "", nil
 }
 // --- parsers (pure, tested) --------------------------------------------------
 // parseTabbed reads "name\tversion" lines (dpkg-query / rpm output).
@@ -3,14 +3,22 @@ package services
 import (
 	"context"
 	"encoding/json"
 	"os/exec"
 	"regexp"
 	"strings"
 	"syscall"
 	"nadir/internal/oscmd"
 	"github.com/danielgtaylor/huma/v2"
 )
 // selfUnit is nadir's own systemd unit name. Acting on it via the normal
 // synchronous path would have systemd SIGTERM the very process serving the
 // request, so the client sees a dropped connection / 500 even though the
 // action succeeded. We detach those calls into a Setsid subprocess instead.
 const selfUnit = "nadir"
 const tagServices = "Services"
 var (
@@ -136,6 +144,9 @@ func registerServices(api huma.API) {
 			if err := ensureExists(in.Unit); err != nil {
 				return nil, err
 			}
 			if isSelf(in.Unit) {
 				return runDetached(c.action, in.Unit)
 			}
 			if _, err := oscmd.Run("systemctl", c.action, "--", in.Unit); err != nil {
 				return nil, huma.Error500InternalServerError("systemctl "+c.action+" failed", err)
 			}
@@ -144,6 +155,27 @@ func registerServices(api huma.API) {
 	}
 }
 // isSelf reports whether unit names nadir's own service, with or without the
 // .service suffix.
 func isSelf(unit string) bool {
 	return unit == selfUnit || unit == selfUnit+".service"
 }
 // runDetached fires systemctl in a new session so a "systemctl restart nadir"
 // (or stop) doesn't kill its own caller before the HTTP response is written.
 // Returns success once the subprocess has *started* — the actual systemd
 // operation may complete after the response is sent, which is the whole point.
 func runDetached(action, unit string) (*oscmd.StatusOutput, error) {
 	cmd := exec.Command("systemctl", action, "--", unit)
 	cmd.SysProcAttr = &syscall.SysProcAttr{Setsid: true}
 	if err := cmd.Start(); err != nil {
 		return nil, huma.Error500InternalServerError("could not start detached systemctl", err)
 	}
 	// Reap in the background so the child doesn't become a zombie.
 	go cmd.Wait()
 	return oscmd.OK(), nil
 }
 // validateUnit guards against empty, flag-like, or malformed unit names.
 func validateUnit(unit string) error {
 	if unit == "" || strings.HasPrefix(unit, "-") || !unitNameRe.MatchString(unit) {
@@ -19,3 +19,22 @@ func TestValidateUnit(t *testing.T) {
 		}
 	}
 }
 // TestIsSelf pins the dispatch that detaches stop/restart-of-self into a
 // Setsid subprocess. Both "nadir" and "nadir.service" must match; anything
 // else (including substrings) must not, or unrelated services would also get
 // detached and bypass the synchronous error path.
 func TestIsSelf(t *testing.T) {
 	yes := []string{"nadir", "nadir.service"}
 	for _, u := range yes {
 		if !isSelf(u) {
 			t.Errorf("isSelf(%q) = false, want true", u)
 		}
 	}
 	no := []string{"", "sshd.service", "nadir-something.service", "nadir.timer", "not-nadir.service"}
 	for _, u := range no {
 		if isSelf(u) {
 			t.Errorf("isSelf(%q) = true, want false", u)
 		}
 	}
 }
@@ -499,9 +499,12 @@ func diskInfo() []DiskInfo {
 	disks := []DiskInfo{}
 	seen := map[string]bool{}
 	for _, e := range entries {
-		// Only real block devices; skip pseudo filesystems and snap's squashfs
+		// ponytail: filter by fstype, not device path. LXC/Docker containers
-		// loop mounts that would otherwise clutter the list.
+		// expose their rootfs as a ZFS dataset name, an overlayfs, or a bind
-		if !strings.HasPrefix(e.Device, "/dev/") || e.FSType == "squashfs" || seen[e.Mountpoint] {
+		// path — never /dev/* — so a "must start with /dev/" check silently
 		// returned no disks on those hosts. statfs + non-zero blocks already
 		// excludes mounts that aren't real storage.
 		if pseudoFS[e.FSType] || seen[e.Mountpoint] {
 			continue
 		}
 		var st syscall.Statfs_t
@@ -522,6 +525,39 @@ func diskInfo() []DiskInfo {
 	return disks
 }
 // pseudoFS lists kernel-virtual filesystems that show up in /proc/mounts but
 // aren't user-facing storage. squashfs covers snap loop mounts; fuse.lxcfs is
 // LXC's per-container /proc/* shim. Anything not on this list and statfs-able
 // with non-zero blocks is treated as real storage — covers ext*, btrfs, xfs,
 // zfs, nfs, cifs, overlay, and the bind-mount cases inside Proxmox LXC.
 var pseudoFS = map[string]bool{
 	"autofs":        true,
 	"binfmt_misc":   true,
 	"bpf":           true,
 	"cgroup":        true,
 	"cgroup2":       true,
 	"configfs":      true,
 	"debugfs":       true,
 	"devpts":        true,
 	"devtmpfs":      true,
 	"fuse.gvfsd-fuse": true,
 	"fuse.lxcfs":    true,
 	"fusectl":       true,
 	"hugetlbfs":     true,
 	"mqueue":        true,
 	"nsfs":          true,
 	"overlay":       true,
 	"proc":          true,
 	"pstore":        true,
 	"ramfs":         true,
 	"rpc_pipefs":    true,
 	"securityfs":    true,
 	"squashfs":      true,
 	"sysfs":         true,
 	"tmpfs":         true,
 	"tracefs":       true,
 }
 func netInfo() []NetInterface {
 	ifaces, err := net.Interfaces()
 	if err != nil {
Author	SHA1	Message	Date
urania	37f03816e1	fix: networking/interfaces build-and-release / release (push) Successful in 2m29s Details	2026-06-23 17:40:44 +02:00
urania	541260e65e	fix: networking/interfaces build-and-release / release (push) Has been cancelled Details	2026-06-23 17:40:17 +02:00
urania	c4180bada1	fix: networking / services / and testing build-and-release / release (push) Successful in 2m40s Details	2026-06-23 17:16:01 +02:00
urania	088880f584	fix: updates build-and-release / release (push) Successful in 2m39s Details	2026-06-23 14:27:06 +02:00
urania	67d95475ee	fix: added package update endpoint build-and-release / release (push) Successful in 3m1s Details	2026-06-23 13:15:39 +02:00
urania	aec04bfe02	fix: storages and mounts build-and-release / release (push) Successful in 2m52s Details	2026-06-23 11:50:55 +02:00
urania	a54c42271c	minor: test build-and-release / release (push) Successful in 1m9s Details	2026-06-23 01:23:19 +02:00