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[image] Add image_asn1() to extract ASN.1 objects from image

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Signed-off-by: Michael Brown <mcb30@ipxe.org>
This commit is contained in:
Michael Brown
2016-07-28 16:16:55 +01:00
parent 296670a648
commit ef50608029
2 changed files with 51 additions and 0 deletions
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16
src/include/ipxe/image.h
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@@ -17,6 +17,7 @@ FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL );
struct uri;
struct pixel_buffer;
struct asn1_cursor;
struct image_type;
/** An executable image */
@@ -99,6 +100,19 @@ struct image_type {
* @ret rc Return status code
*/
int ( * pixbuf ) ( struct image *image, struct pixel_buffer **pixbuf );
/**
* 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 ( * asn1 ) ( struct image *image, size_t offset,
struct asn1_cursor **cursor );
};
/**
@@ -170,6 +184,8 @@ extern int image_select ( struct image *image );
extern struct image * image_find_selected ( void );
extern int image_set_trust ( int require_trusted, int permanent );
extern int image_pixbuf ( struct image *image, struct pixel_buffer **pixbuf );
extern int image_asn1 ( struct image *image, size_t offset,
struct asn1_cursor **cursor );
/**
* Increment reference count on an image