ext4: Initial work for fscrypt-ext4

1 files changed, 37 insertions, 0 deletions

diff --git a/ext4/ext4.go b/ext4/ext4.go
new file mode 100644
index 0000000..cbe87da
--- /dev/null
+++ b/ext4/ext4.go
@@ -0,0 +1,37 @@
+package main
+
+import (
+	"fmt"
+	"io"
+	"os"
+)
+
+func printUsage(w io.Writer, name string) {
+	fmt.Fprintf(w, "Usage: %s [enable|disable] <device> [--force]\n\n", name)
+	fmt.Fprintln(w, "Enable or disable encryption on an ext4 filesystem.")
+	fmt.Fprintln(w, "  <device> - Path to the filesystem device")
+	fmt.Fprintln(w, "  --force  - Automatically proceed with the operation")
+}
+
+func main() {
+	if len(os.Args) != 3 {
+		printUsage(os.Stderr, os.Args[0])
+		os.Exit(1)
+	}
+	switch os.Args[1] {
+	case "enable":
+		fmt.Println("Enabling encryption!!")
+	case "disable":
+		fmt.Println("Disabling encryption!!")
+	default:
+		fmt.Fprintf(os.Stderr, "%s: invalid command %q\n", os.Args[0], os.Args[1])
+		printUsage(os.Stderr, os.Args[0])
+		os.Exit(1)
+	}
+
+	if isExt4EncryptionEnabled(os.Args[2]) {
+		fmt.Printf("%q has encryption\n", os.Args[2])
+	} else {
+		fmt.Printf("%q doesn't have encryption\n", os.Args[2])
+	}
+}