From mboxrd@z Thu Jan 1 00:00:00 1970 From: Luigi 'Comio' Mantellini Date: Thu, 27 Mar 2008 23:26:26 +0100 Subject: [U-Boot-Users] New Image format: headers hashes. In-Reply-To: <1206634003.13666.14.camel@localhost> References: <1206616392.23794.33.camel@localhost> <1206634003.13666.14.camel@localhost> Message-ID: <1206656786.13734.5.camel@localhost> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: u-boot@lists.denx.de Continuing my monologue: An observation about the fit_image_check_hashes and fit_image_set_hashes functions: - The hashes protect only the data sections of the image nodes... ignoring the others fields (like "load", "entry", etc...). I don't like this :S I think that the hash values must protect all fields of a node (like the "old" image format). to be continue... ciao luigi On gio, 2008-03-27 at 17:06 +0100, Luigi 'Comio' Mantellini wrote: > On gio, 2008-03-27 at 12:13 +0100, Luigi 'Comio' Mantellini wrote: > > > > > > - The mkimage calculate hashes before that timestamp is added to > > image. > > is it better exchange the order of these operations (before add > > timestamp then calculate hashes)? > > - Does the new format assure that the complete image (_all_ > > sections, > > images, ramdisks, configurations, blobs) are covered by at least an > > hash > > value? should mkimage add at least a hash value for the root node? > > > > In addition to the previous question: > > - I'm interested to calculate and store from U-boot code but the > fit_image_set_hashes is compiled only when the USE_HOSTCC symbol is > defined. Why? Is there a particular reason? I think that a lot of > useful functions (ifdef-ed by USE_HOSTCC) should be available also in > u-boot code, anyway the linker will drop the unused functions. > > > Any comments? > > thanks > > luigi -- ______ Luigi Mantellini .'______'. R&D - Software (.' '.) Industrie Dial Face S.p.A. ( :=----=: ) Via Canzo, 4 ('.______.') 20068 Peschiera Borromeo (MI), Italy '.______.' Tel.: +39 02 5167 2813 Fax: +39 02 5167 2459 Ind. Dial Face Email: luigi.mantellini at idf-hit.com www.idf-hit.com GPG fingerprint: 3DD1 7B71 FBDF 6376 1B4A B003 175F E979 907E 1650