From 3d8a26981901dae2ff58b9dc77015997ea39d641 Mon Sep 17 00:00:00 2001
From: Owen <owen@txv.io>
Date: Thu, 4 Jun 2026 11:42:06 -0700
Subject: [PATCH] Fix windows compatibility issues

Former-commit-id: 0e690a6a84ba4413f911e03f2a3edf14e9a5b81b
---
 browsergateway/ssh_native.go         |  2 +
 browsergateway/ssh_native_windows.go | 16 +++++++
 nativessh/pty.go                     |  2 +
 nativessh/server.go                  |  2 +
 nativessh/server_windows.go          | 64 ++++++++++++++++++++++++++++
 updates/advantech_windows.go         |  8 ++++
 6 files changed, 94 insertions(+)
 create mode 100644 browsergateway/ssh_native_windows.go
 create mode 100644 nativessh/server_windows.go
 create mode 100644 updates/advantech_windows.go

diff --git a/browsergateway/ssh_native.go b/browsergateway/ssh_native.go
index 992f875..87adf92 100644
--- a/browsergateway/ssh_native.go
+++ b/browsergateway/ssh_native.go
@@ -1,3 +1,5 @@
+//go:build !windows
+
 package browsergateway
 
 import (
diff --git a/browsergateway/ssh_native_windows.go b/browsergateway/ssh_native_windows.go
new file mode 100644
index 0000000..3caff0a
--- /dev/null
+++ b/browsergateway/ssh_native_windows.go
@@ -0,0 +1,16 @@
+//go:build windows
+
+package browsergateway
+
+import (
+	"context"
+	"errors"
+
+	"github.com/coder/websocket"
+	"github.com/fosrl/newt/nativessh"
+)
+
+// serveNativeSSHSession is not supported on Windows.
+func serveNativeSSHSession(_ context.Context, _ *websocket.Conn, _ string, _ *nativessh.CredentialStore) error {
+	return errors.New("native SSH is not supported on Windows")
+}
diff --git a/nativessh/pty.go b/nativessh/pty.go
index 3d20e35..42cdd05 100644
--- a/nativessh/pty.go
+++ b/nativessh/pty.go
@@ -1,3 +1,5 @@
+//go:build !windows
+
 package nativessh
 
 import (
diff --git a/nativessh/server.go b/nativessh/server.go
index 0ccd7c3..20a13d9 100644
--- a/nativessh/server.go
+++ b/nativessh/server.go
@@ -1,3 +1,5 @@
+//go:build !windows
+
 package nativessh
 
 import (
diff --git a/nativessh/server_windows.go b/nativessh/server_windows.go
new file mode 100644
index 0000000..3394e13
--- /dev/null
+++ b/nativessh/server_windows.go
@@ -0,0 +1,64 @@
+//go:build windows
+
+package nativessh
+
+import (
+	"errors"
+	"log"
+	"net"
+	"sync"
+
+	"golang.org/x/crypto/ssh"
+)
+
+// CredentialStore is a stub on Windows. Native SSH is not supported on Windows.
+type CredentialStore struct {
+	mu         sync.RWMutex
+	principals map[string]map[string]struct{}
+}
+
+// NewCredentialStore returns an empty CredentialStore stub.
+// Native SSH is not supported on Windows; a warning is logged.
+func NewCredentialStore() *CredentialStore {
+	log.Println("WARNING: native SSH is not supported on Windows and will be disabled")
+	return &CredentialStore{
+		principals: make(map[string]map[string]struct{}),
+	}
+}
+
+// SetCAKey is a no-op stub on Windows.
+func (s *CredentialStore) SetCAKey(_ string) error {
+	return errors.New("native SSH not supported on Windows")
+}
+
+// AddPrincipals is a no-op stub on Windows.
+func (s *CredentialStore) AddPrincipals(_, _ string) {}
+
+// get returns nil CA key and empty principals on Windows.
+func (s *CredentialStore) get(_ string) (ssh.PublicKey, map[string]struct{}) {
+	return nil, nil
+}
+
+// ServerConfig holds configuration for the native SSH server (stub on Windows).
+type ServerConfig struct {
+	ListenAddr  string
+	Credentials *CredentialStore
+}
+
+// Server is a stub on Windows.
+type Server struct{}
+
+// NewServer returns a stub Server and logs a warning.
+func NewServer(cfg ServerConfig) *Server {
+	return &Server{}
+}
+
+// ListenAndServe always returns an error on Windows.
+func (s *Server) ListenAndServe() error {
+	return errors.New("native SSH not supported on Windows")
+}
+
+// Serve always returns an error on Windows.
+func (s *Server) Serve(_ net.Listener) error {
+	return errors.New("native SSH not supported on Windows")
+}
diff --git a/updates/advantech_windows.go b/updates/advantech_windows.go
new file mode 100644
index 0000000..e6e302c
--- /dev/null
+++ b/updates/advantech_windows.go
@@ -0,0 +1,8 @@
+//go:build windows
+
+package updates
+
+// postUpdateAdvantech is not supported on Windows.
+func postUpdateAdvantech(newVersion, pidFile string) error {
+	return nil
+}