[Devel] Re: [PATCH 1/1] capabilities: introduce per-process capability bounding set (v8)

[Andrew Morgan]

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Serge,

  16d76d11d27f32487366a7cec6a52f6ec4fb1cbb
+ 470a68120cda83875a281354b897f3bda04b58fc

Could you also modify the old comment above

 #define CAP_SETPCAP          8

"add any capability to the current process' inheritable set"

to read

"add any capability, from cap_bset, to the current process' inheritable set"

Otherwise, this all looks good.

Thanks

Andrew

Serge E. Hallyn wrote:
> Quoting Serge E. Hallyn (serue at us.ibm.com):
>> How about the following?
> 
> Argh, with the following on top of it...
> 
> -serge
> 
> 
>>From 470a68120cda83875a281354b897f3bda04b58fc Mon Sep 17 00:00:00 2001
> From: Serge E. Hallyn <serue at us.ibm.com>
> Date: Tue, 20 Nov 2007 15:12:54 -0500
> Subject: [PATCH 1/1] capbset: fix compilation when CONFIG_SECURITY=n
> 
> without this patch, kernel/sys.c has undefined reference
> to cap_prctl_drop().
> 
> Signed-off-by: Serge E. Hallyn <serue at us.ibm.com>
> ---
>  kernel/sys.c         |    4 ++++
>  security/commoncap.c |    4 ----
>  2 files changed, 4 insertions(+), 4 deletions(-)
> 
> diff --git a/kernel/sys.c b/kernel/sys.c
> index b528e75..efc495e 100644
> --- a/kernel/sys.c
> +++ b/kernel/sys.c
> @@ -1747,7 +1747,11 @@ asmlinkage long sys_prctl(int option, unsigned long arg2, unsigned long arg3,
>  				return -EINVAL;
>  			return !!cap_raised(current->cap_bset, arg2);
>  		case PR_CAPBSET_DROP:
> +#ifdef CONFIG_SECURITY_FILE_CAPABILITIES
>  			return cap_prctl_drop(arg2);
> +#else
> +			return -EINVAL;
> +#endif
>  
>  		default:
>  			error = -EINVAL;
> diff --git a/security/commoncap.c b/security/commoncap.c
> index b72825e..e909f4f 100644
> --- a/security/commoncap.c
> +++ b/security/commoncap.c
> @@ -594,10 +594,6 @@ int cap_task_kill(struct task_struct *p, struct siginfo *info,
>  {
>  	return 0;
>  }
> -long cap_prctl_drop(unsigned long cap)
> -{
> -	return -EINVAL;
> -}
>  #endif
>  
>  void cap_task_reparent_to_init (struct task_struct *p)
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