Warn when `hashable` is used on an encrypted image
An image's hash is calculated from the following two inputs:
1. Image header.
2. Unencrypted image body.
The `image hashable` command extracts the header and body from a
complete image. If the image body is encrypted, then the result of this
command will not generate the correct hash.
This commit adds a warning in case `image hashable` is used on an
encrypyted image.
diff --git a/cli/image_cmds.go b/cli/image_cmds.go
index 83b4e8f..4a926a4 100644
--- a/cli/image_cmds.go
+++ b/cli/image_cmds.go
@@ -310,6 +310,11 @@
ImgmodUsage(cmd, err)
}
+ if (img.Header.Flags & image.IMAGE_F_ENCRYPTED) != 0 {
+ util.StatusMessage(util.VERBOSITY_QUIET,
+ "* Warning: extracting hashable content from an encrypted image\n")
+ }
+
f, err := os.Create(outFilename)
if err != nil {
ImgmodUsage(nil, util.ChildNewtError(err))
