Re: [PATCH security-next v3 07/29] LSM: Convert security_initcall() into DEFINE_LSM()

[John Johansen]

On 09/24/2018 05:18 PM, Kees Cook wrote:
> Instead of using argument-based initializers, switch to defining the
> contents of struct lsm_info on a per-LSM basis. This also drops
> the final use of the now inaccurate "initcall" naming.
> 
> Cc: John Johansen <john.johansen@xxxxxxxxxxxxx>
> Cc: James Morris <jmorris@xxxxxxxxx>
> Cc: "Serge E. Hallyn" <serge@xxxxxxxxxx>
> Cc: Paul Moore <paul@xxxxxxxxxxxxxx>
> Cc: Stephen Smalley <sds@xxxxxxxxxxxxx>
> Cc: Casey Schaufler <casey@xxxxxxxxxxxxxxxx>
> Cc: Tetsuo Handa <penguin-kernel@xxxxxxxxxxxxxxxxxxx>
> Cc: Mimi Zohar <zohar@xxxxxxxxxxxxxxxxxx>
> Cc: linux-security-module@xxxxxxxxxxxxxxx
> Cc: selinux@xxxxxxxxxxxxx
> Signed-off-by: Kees Cook <keescook@xxxxxxxxxxxx>
> ---
>  include/linux/lsm_hooks.h  | 6 ++++--
>  security/apparmor/lsm.c    | 4 +++-
>  security/integrity/iint.c  | 4 +++-
>  security/selinux/hooks.c   | 4 +++-
>  security/smack/smack_lsm.c | 4 +++-
>  security/tomoyo/tomoyo.c   | 4 +++-
>  6 files changed, 19 insertions(+), 7 deletions(-)
> 
> diff --git a/include/linux/lsm_hooks.h b/include/linux/lsm_hooks.h
> index ad04761e5587..02ec717189f9 100644
> --- a/include/linux/lsm_hooks.h
> +++ b/include/linux/lsm_hooks.h
> @@ -2045,11 +2045,13 @@ struct lsm_info {
>  
>  extern struct lsm_info __start_lsm_info[], __end_lsm_info[];
>  
> -#define security_initcall(lsm)						\
> +#define DEFINE_LSM(lsm)							\
>  	static struct lsm_info __lsm_##lsm				\
>  		__used __section(.lsm_info.init)			\
>  		__aligned(sizeof(unsigned long))			\
> -		= { .init = lsm, }
> +		= {							\
> +
> +#define END_LSM	  }
>  

I am with Tetsuo on this one, I really don't like the END_LSM thing.