On Thu, Sep 27, 2018 at 5:11 PM Tycho Andersen <[email protected]> wrote:
> In the next commit we'll use this same mnemonic to get a listener for the
> nth filter, so we need it available outside of CHECKPOINT_RESTORE in the
> USER_NOTIFICATION case as well.
>
> v2: new in v2
> v3: no changes
> v4: no changes
> v5: switch to CHECKPOINT_RESTORE || USER_NOTIFICATION to avoid warning when
>     only CONFIG_SECCOMP_FILTER is enabled.
> v7: drop USER_NOTIFICATION bits
>
> Signed-off-by: Tycho Andersen <[email protected]>
> CC: Kees Cook <[email protected]>
> CC: Andy Lutomirski <[email protected]>
> CC: Oleg Nesterov <[email protected]>
> CC: Eric W. Biederman <[email protected]>
> CC: "Serge E. Hallyn" <[email protected]>
> CC: Christian Brauner <[email protected]>
> CC: Tyler Hicks <[email protected]>
> CC: Akihiro Suda <[email protected]>

Reviewed-by: Jann Horn <[email protected]>

> ---
>  kernel/seccomp.c | 6 ++++--
>  1 file changed, 4 insertions(+), 2 deletions(-)
>
> diff --git a/kernel/seccomp.c b/kernel/seccomp.c
> index fa6fe9756c80..44a31ac8373a 100644
> --- a/kernel/seccomp.c
> +++ b/kernel/seccomp.c
> @@ -1158,7 +1158,7 @@ long prctl_set_seccomp(unsigned long seccomp_mode, char 
> __user *filter)
>         return do_seccomp(op, 0, uargs);
>  }
>
> -#if defined(CONFIG_SECCOMP_FILTER) && defined(CONFIG_CHECKPOINT_RESTORE)
> +#if defined(CONFIG_SECCOMP_FILTER)
>  static struct seccomp_filter *get_nth_filter(struct task_struct *task,
>                                              unsigned long filter_off)
>  {
> @@ -1205,6 +1205,7 @@ static struct seccomp_filter *get_nth_filter(struct 
> task_struct *task,
>         return filter;
>  }
>
> +#if defined(CONFIG_CHECKPOINT_RESTORE)
>  long seccomp_get_filter(struct task_struct *task, unsigned long filter_off,
>                         void __user *data)
>  {
> @@ -1277,7 +1278,8 @@ long seccomp_get_metadata(struct task_struct *task,
>         __put_seccomp_filter(filter);
>         return ret;
>  }
> -#endif
> +#endif /* CONFIG_CHECKPOINT_RESTORE */
> +#endif /* CONFIG_SECCOMP_FILTER */
>
>  #ifdef CONFIG_SYSCTL
>
> --
> 2.17.1
>

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