cbfstool: improve specification of struct cbfs_file
Lock down its size and document some of the fields
Change-Id: I09fd6c80185345da0ae17d0f4498b50995fd1ec5
Signed-off-by: Patrick Georgi <pgeorgi@chromium.org>
Reviewed-on: http://review.coreboot.org/10927
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Tested-by: build bot (Jenkins)
diff --git a/util/cbfstool/cbfs.h b/util/cbfstool/cbfs.h
index 14a7a37..6286eff 100644
--- a/util/cbfstool/cbfs.h
+++ b/util/cbfstool/cbfs.h
@@ -71,12 +71,16 @@
struct cbfs_file {
uint8_t magic[8];
+ /* length of file data */
uint32_t len;
uint32_t type;
uint32_t checksum;
+ /* length of header incl. variable data */
uint32_t offset;
} __PACKED;
+_Static_assert(sizeof(struct cbfs_file) == 24, "cbfs_file size mismatch");
+
struct cbfs_stage {
uint32_t compression;
uint64_t entry;