If -K option is missing when you sign image nodes, it fails with an unclear error message:

tools/mkimage Can't add hashes to FIT blob: -1

It is hard to figure out the cause of the failure.

In contrast, when you sign configuration nodes, -K is optional because fit_config_process_sig() returns successfully if keydest is unset. Probably this is a preferred behavior when you want to update FIT with the same key; you do not have to update the public key in this case.

So, this commit changes fit_image_process_sig() to continue signing without keydest. If ->add_verify_data() fails, show a clearer error message, which has been borrowed from fit_config_process_sig().

Signed-off-by: Masahiro Yamada yamada.masahiro@socionext.com ---

tools/image-host.c | 15 ++++++++------- 1 file changed, 8 insertions(+), 7 deletions(-)

diff --git a/tools/image-host.c b/tools/image-host.c index ad9a73a..d42c1ca 100644 --- a/tools/image-host.c +++ b/tools/image-host.c @@ -242,18 +242,19 @@ static int fit_image_process_sig(const char *keydir, void *keydest, /* Get keyname again, as FDT has changed and invalidated our pointer */ info.keyname = fdt_getprop(fit, noffset, "key-name-hint", NULL);

- if (keydest) - ret = info.crypto->add_verify_data(&info, keydest); - else - return -1; - /* * Write the public key into the supplied FDT file; this might fail * several times, since we try signing with successively increasing * size values */ - if (keydest && ret) - return ret; + if (keydest) { + ret = info.crypto->add_verify_data(&info, keydest); + if (ret) { + printf("Failed to add verification data for '%s' signature node in '%s' image node\n", + node_name, image_name); + return ret; + } + }

return 0; }