linux-kernel - Re: [PATCH] smack: SMACK_MAGIC to include/uapi/linux/magic.h

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Date:	Thu, 08 Nov 2012 17:46:47 -0800
From:	Casey Schaufler <casey@...aufler-ca.com>
To:	Jarkko Sakkinen <jarkko.sakkinen@....fi>
CC:	james.l.morris@...cle.com, linux-kernel@...r.kernel.org,
	linux-security-module@...r.kernel.org,
	Casey Schaufler <casey@...aufler-ca.com>
Subject: Re: [PATCH] smack: SMACK_MAGIC to include/uapi/linux/magic.h

On 11/8/2012 10:08 AM, Jarkko Sakkinen wrote:
> SMACK_MAGIC moved to a proper place for easy user space access
> (i.e. libsmack).
>
> Signed-off-by: Jarkko Sakkinen <jarkko.sakkinen@....fi>

I will apply once James updates the next branch of his security tree.

> ---
>  include/uapi/linux/magic.h |    1 +
>  security/smack/smack.h     |    6 +-----
>  security/smack/smack_lsm.c |    1 -
>  3 files changed, 2 insertions(+), 6 deletions(-)
>
> diff --git a/include/uapi/linux/magic.h b/include/uapi/linux/magic.h
> index e15192c..12735ad 100644
> --- a/include/uapi/linux/magic.h
> +++ b/include/uapi/linux/magic.h
> @@ -11,6 +11,7 @@
>  #define DEBUGFS_MAGIC          0x64626720
>  #define SECURITYFS_MAGIC	0x73636673
>  #define SELINUX_MAGIC		0xf97cff8c
> +#define SMACK_MAGIC		0x43415d53	/* "SMAC" */
>  #define RAMFS_MAGIC		0x858458f6	/* some random number */
>  #define TMPFS_MAGIC		0x01021994
>  #define HUGETLBFS_MAGIC 	0x958458f6	/* some random number */
> diff --git a/security/smack/smack.h b/security/smack/smack.h
> index 99b3612..e3e7a4f 100644
> --- a/security/smack/smack.h
> +++ b/security/smack/smack.h
> @@ -21,6 +21,7 @@
>  #include <linux/list.h>
>  #include <linux/rculist.h>
>  #include <linux/lsm_audit.h>
> +#include <linux/magic.h>
>  
>  /*
>   * Smack labels were limited to 23 characters for a long time.
> @@ -149,11 +150,6 @@ struct smack_known {
>  #define SMACK_CIPSO_SOCKET	1
>  
>  /*
> - * smackfs magic number
> - */
> -#define SMACK_MAGIC	0x43415d53 /* "SMAC" */
> -
> -/*
>   * CIPSO defaults.
>   */
>  #define SMACK_CIPSO_DOI_DEFAULT		3	/* Historical */
> diff --git a/security/smack/smack_lsm.c b/security/smack/smack_lsm.c
> index 38be92c..6e8fa99 100644
> --- a/security/smack/smack_lsm.c
> +++ b/security/smack/smack_lsm.c
> @@ -32,7 +32,6 @@
>  #include <linux/pipe_fs_i.h>
>  #include <net/cipso_ipv4.h>
>  #include <linux/audit.h>
> -#include <linux/magic.h>
>  #include <linux/dcache.h>
>  #include <linux/personality.h>
>  #include <linux/msg.h>

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