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-rw-r--r--include/image.h23
1 files changed, 23 insertions, 0 deletions
diff --git a/include/image.h b/include/image.h
index 4149ebbcce9..6edcb1995bf 100644
--- a/include/image.h
+++ b/include/image.h
@@ -1897,6 +1897,29 @@ struct image_region *fit_region_make_list(const void *fit,
struct fdt_region *fdt_regions, int count,
struct image_region *region);
+/**
+ * fit_config_get_signed_nodes() - Build the list of nodes covered by a config
+ * signature
+ *
+ * Collects the paths of the nodes that the configuration signature is
+ * computed over: the root node, the configuration node, and for each image
+ * referenced by the configuration its node, its hash subnodes and its cipher
+ * and dm-verity subnodes. The result is the same node list used when creating
+ * and verifying the signature, and is suitable for passing to
+ * fdt_find_regions().
+ *
+ * @fit: FIT blob
+ * @conf_noffset: Configuration node offset
+ * @node_inc: Array to fill with pointers to packed path strings
+ * @max_nodes: Number of entries in @node_inc
+ * @buf: Buffer for the packed null-terminated path strings
+ * @buf_len: Size of @buf
+ * Return: number of entries written to @node_inc, or -ve on error
+ */
+int fit_config_get_signed_nodes(const void *fit, int conf_noffset,
+ char **node_inc, int max_nodes,
+ char *buf, int buf_len);
+
static inline int fit_image_check_target_arch(const void *fdt, int node)
{
#ifndef USE_HOSTCC