[Buildroot] [PATCH] package/dropbear: restore full BR2_PACKAGE_DROPBEAR_LEGACY_CRYPTO behaviour

Yann E. MORIN yann.morin.1998 at free.fr
Thu Jun 25 21:13:24 UTC 2020


Francois, All,

On 2020-06-25 09:58 +0200, Francois Perrad spake thusly:
> now, BR2_PACKAGE_DROPBEAR_LEGACY_CRYPTO works like with version 2019.78
> and as described in Config.in
> 
> Signed-off-by: Francois Perrad <francois.perrad at gadz.org>

Applied to master, thanks.

But see a nit, below...

> ---
>  package/dropbear/dropbear.mk | 9 ++++++++-
>  1 file changed, 8 insertions(+), 1 deletion(-)
> 
> diff --git a/package/dropbear/dropbear.mk b/package/dropbear/dropbear.mk
> index b32f39d64..b7342cef5 100644
> --- a/package/dropbear/dropbear.mk
> +++ b/package/dropbear/dropbear.mk
> @@ -56,7 +56,14 @@ endef
>  DROPBEAR_POST_EXTRACT_HOOKS += DROPBEAR_SVR_PASSWORD_AUTH
>  endif
>  
> -ifneq ($(BR2_PACKAGE_DROPBEAR_LEGACY_CRYPTO),y)
> +ifeq ($(BR2_PACKAGE_DROPBEAR_LEGACY_CRYPTO),y)
> +define DROPBEAR_ENABLE_LEGACY_CRYPTO
> +	echo '#define DROPBEAR_3DES 1'                  >> $(@D)/localoptions.h
> +	echo '#define DROPBEAR_ENABLE_CBC_MODE 1'       >> $(@D)/localoptions.h
> +	echo '#define DROPBEAR_SHA1_96_HMAC 1'          >> $(@D)/localoptions.h
> +endef
> +DROPBEAR_POST_EXTRACT_HOOKS += DROPBEAR_ENABLE_LEGACY_CRYPTO

I know you followed the existing code, but semantically that is not
correct: it is not a post-=extract hook, but rather, it is a
pre=configure hook.

Indeed, post-extract hooks are there to "fixup" the extraction, while
pre-configure hooks are there to "prepare" the configure step.

Would you care to see if swithching all those to _PRE_CONFIGURE_HOOKS is
possible and has not side-effect, please?

Regards,
Yann E. MORIN.

> +else
>  define DROPBEAR_DISABLE_LEGACY_CRYPTO
>  	echo '#define DROPBEAR_DSS 0'                   >> $(@D)/localoptions.h
>  	echo '#define DROPBEAR_DH_GROUP1 0'             >> $(@D)/localoptions.h
> -- 
> 2.25.1
> 
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