From mboxrd@z Thu Jan 1 00:00:00 1970 From: Joe Perches Subject: Re: [PATCH v8 1/8] sk_run_filter: add support for custom load_pointer Date: Thu, 16 Feb 2012 17:54:48 -0800 Message-ID: <1329443688.15226.16.camel@joe2Laptop> References: <1329422549-16407-1-git-send-email-wad@chromium.org> Mime-Version: 1.0 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: 7bit Cc: linux-kernel@vger.kernel.org, linux-arch@vger.kernel.org, linux-doc@vger.kernel.org, kernel-hardening@lists.openwall.org, netdev@vger.kernel.org, x86@kernel.org, arnd@arndb.de, davem@davemloft.net, hpa@zytor.com, mingo@redhat.com, oleg@redhat.com, peterz@infradead.org, rdunlap@xenotime.net, mcgrathr@chromium.org, tglx@linutronix.de, luto@mit.edu, eparis@redhat.com, serge.hallyn@canonical.com, djm@mindrot.org, scarybeasts@gmail.com, indan@nul.nu, pmoore@redhat.com, akpm@linux-foundation.org, corbet@lwn.net, eric.dumazet@gmail.com, markus@chromium.org, keescook@chromium.org To: Will Drewry Return-path: In-Reply-To: <1329422549-16407-1-git-send-email-wad@chromium.org> Sender: linux-arch-owner@vger.kernel.org List-Id: netdev.vger.kernel.org On Thu, 2012-02-16 at 14:02 -0600, Will Drewry wrote: > This change allows CONFIG_SECCOMP to make use of BPF programs for > user-controlled system call filtering (as shown in this patch series). [] > diff --git a/net/core/filter.c b/net/core/filter.c [] > @@ -542,9 +602,35 @@ int sk_chk_filter(struct sock_filter *filter, unsigned int flen) [] > case BPF_S_LD_W_ABS: > + MAYBE_USE_LOAD_FN(LD_W_ABS); > case BPF_S_LD_H_ABS: > + MAYBE_USE_LOAD_FN(LD_H_ABS); > case BPF_S_LD_B_ABS: > + MAYBE_USE_LOAD_FN(LD_B_ABS); Would be nice to note fallthrough or add break if necessary.