[crypto] Enable both DER and PEM formats by default

Enable both IMAGE_DER and IMAGE_PEM by default, and drag in the
relevant objects only when image_asn1() is present in the binary.

This allows "imgverify" to transparently use either DER or PEM
signature files.

Signed-off-by: Michael Brown <mcb30@ipxe.org>

1 files changed, 0 insertions, 35 deletions

diff --git a/src/core/image.c b/src/core/image.c
index b4785269..a185b82f 100644
--- a/src/core/image.c
+++ b/src/core/image.c
@@ -505,38 +505,3 @@ int image_pixbuf ( struct image *image, struct pixel_buffer **pixbuf ) {
 
 	return 0;
 }
-
-/**
- * Extract ASN.1 object from image
- *
- * @v image		Image
- * @v offset		Offset within image
- * @v cursor		ASN.1 cursor to fill in
- * @ret next		Offset to next image, or negative error
- *
- * The caller is responsible for eventually calling free() on the
- * allocated ASN.1 cursor.
- */
-int image_asn1 ( struct image *image, size_t offset,
-		 struct asn1_cursor **cursor ) {
-	int next;
-	int rc;
-
-	/* Sanity check */
-	assert ( offset <= image->len );
-
-	/* Check that this image can be used to extract an ASN.1 object */
-	if ( ! ( image->type && image->type->asn1 ) )
-		return -ENOTSUP;
-
-	/* Try creating ASN.1 cursor */
-	next = image->type->asn1 ( image, offset, cursor );
-	if ( next < 0 ) {
-		rc = next;
-		DBGC ( image, "IMAGE %s could not extract ASN.1 object: %s\n",
-		       image->name, strerror ( rc ) );
-		return rc;
-	}
-
-	return next;
-}