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From: "Mickaël Salaün" <mic@digikod.net>
To: Mimi Zohar <zohar@linux.ibm.com>
Cc: Al Viro <viro@zeniv.linux.org.uk>,
	Andrew Morton <akpm@linux-foundation.org>,
	linux-integrity@vger.kernel.org, linux-kernel@vger.kernel.org,
	linux-security-module@vger.kernel.org
Subject: Re: [PATCH 2/2] fs: extend the trusted_for syscall to call IMA
Date: Wed, 13 Oct 2021 17:26:32 +0200	[thread overview]
Message-ID: <d4273866-607e-37be-076b-a920bbf08bf9@digikod.net> (raw)
In-Reply-To: <20211013110113.13239-2-zohar@linux.ibm.com>

Nice!

On 13/10/2021 13:01, Mimi Zohar wrote:
> Extend the trusted_for syscall to call the newly defined
> ima_trusted_for hook.
> 
> Signed-off-by: Mimi Zohar <zohar@linux.ibm.com>
> ---
>  fs/open.c           | 3 +++
>  include/linux/ima.h | 9 +++++++++
>  2 files changed, 12 insertions(+)
> 
> diff --git a/fs/open.c b/fs/open.c
> index c79c138a638c..4d54e2a727e1 100644
> --- a/fs/open.c
> +++ b/fs/open.c
> @@ -585,6 +585,9 @@ SYSCALL_DEFINE3(trusted_for, const int, fd, const enum trusted_for_usage, usage,
>  	err = inode_permission(file_mnt_user_ns(f.file), inode,
>  			mask | MAY_ACCESS);
>  
> +	if (!err)
> +		err = ima_trusted_for(f.file, usage);

Could you please implement a new LSM hook instead? Other LSMs may want
to use this information as well.

  reply	other threads:[~2021-10-13 15:25 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-10-13 11:01 [PATCH 1/2] ima: define ima_trusted_for hook Mimi Zohar
2021-10-13 11:01 ` [PATCH 2/2] fs: extend the trusted_for syscall to call IMA Mimi Zohar
2021-10-13 15:26   ` Mickaël Salaün [this message]
2021-10-13 15:45     ` Mimi Zohar
2021-10-13 17:24       ` Casey Schaufler
2021-10-13 14:34 ` [PATCH 1/2] ima: define ima_trusted_for hook Mimi Zohar

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