From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932095Ab2LRVy7 (ORCPT ); Tue, 18 Dec 2012 16:54:59 -0500 Received: from e33.co.us.ibm.com ([32.97.110.151]:33190 "EHLO e33.co.us.ibm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754569Ab2LRVyx (ORCPT ); Tue, 18 Dec 2012 16:54:53 -0500 From: Corey Bryant To: linux-kernel@vger.kernel.org Cc: linux-security-module@vger.kernel.org, jmorris@namei.org, wad@chromium.org, pmoore@redhat.com, otubo@linux.vnet.ibm.com Subject: [PATCH 2/3] Documentation: SECCOMP_RET_INFO return value Date: Tue, 18 Dec 2012 16:54:31 -0500 Message-Id: <1355867671-3269-1-git-send-email-coreyb@linux.vnet.ibm.com> X-Mailer: git-send-email 1.7.11.7 X-Content-Scanned: Fidelis XPS MAILER x-cbid: 12121821-2398-0000-0000-00000F298440 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Adds documentation describing the SECCOMP_RET_INFO return value. Signed-off-by: Corey Bryant --- Documentation/prctl/seccomp_filter.txt | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/Documentation/prctl/seccomp_filter.txt b/Documentation/prctl/seccomp_filter.txt index 1e469ef..ffddf9f 100644 --- a/Documentation/prctl/seccomp_filter.txt +++ b/Documentation/prctl/seccomp_filter.txt @@ -49,6 +49,7 @@ CONFIG_HAVE_ARCH_SECCOMP_FILTER, then filters may be added as below: PR_SET_SECCOMP: Now takes an additional argument which specifies a new filter using a BPF program. + The BPF program will be executed over struct seccomp_data reflecting the system call number, arguments, and other metadata. The BPF program must then return one of the @@ -138,6 +139,12 @@ SECCOMP_RET_TRACE: allow use of ptrace, even of other sandboxed processes, without extreme care; ptracers can use this mechanism to escape.) +SECCOMP_RET_INFO: + Results in a rate-limited informational kernel message that + includes the system call number, and the system call is + executed. The message format is: + "seccomp: syscall=x", where x is the system call number. + SECCOMP_RET_ALLOW: Results in the system call being executed. -- 1.7.11.7