Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756806Ab3D0CSx (ORCPT ); Fri, 26 Apr 2013 22:18:53 -0400 Received: from mail-qe0-f46.google.com ([209.85.128.46]:51651 "EHLO mail-qe0-f46.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756484Ab3D0CSv (ORCPT ); Fri, 26 Apr 2013 22:18:51 -0400 From: Xi Wang To: netdev@vger.kernel.org, linux-kernel@vger.kernel.org Cc: Daniel Borkmann , Heiko Carstens , Will Drewry , Eric Dumazet , Russell King , David Laight , "David S. Miller" , Andrew Morton , Nicolas Schichan , Xi Wang Subject: [PATCH v2 net-next 3/3] ARM: net: bpf_jit_32: support BPF_S_ANC_SECCOMP_LD_W instruction Date: Fri, 26 Apr 2013 22:17:27 -0400 Message-Id: <1367029047-14830-4-git-send-email-xi.wang@gmail.com> X-Mailer: git-send-email 1.8.1.2 In-Reply-To: <1367029047-14830-1-git-send-email-xi.wang@gmail.com> References: <1367029047-14830-1-git-send-email-xi.wang@gmail.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1712 Lines: 57 This patch implements the seccomp BPF_S_ANC_SECCOMP_LD_W instruction in ARM JIT. Signed-off-by: Xi Wang Cc: Daniel Borkmann Cc: Heiko Carstens Cc: Will Drewry Cc: Eric Dumazet Cc: Russell King Cc: David Laight Cc: "David S. Miller" Cc: Andrew Morton Cc: Nicolas Schichan --- arch/arm/net/bpf_jit_32.c | 14 ++++++++++++++ 1 file changed, 14 insertions(+) diff --git a/arch/arm/net/bpf_jit_32.c b/arch/arm/net/bpf_jit_32.c index 073b085..9bfce464 100644 --- a/arch/arm/net/bpf_jit_32.c +++ b/arch/arm/net/bpf_jit_32.c @@ -19,6 +19,7 @@ #include #include #include +#include #include "bpf_jit_32.h" @@ -845,6 +846,19 @@ b_epilogue: off = offsetof(struct sk_buff, queue_mapping); emit(ARM_LDRH_I(r_A, r_skb, off), ctx); break; +#ifdef CONFIG_SECCOMP_FILTER + case BPF_S_ANC_SECCOMP_LD_W: + if (k == offsetof(struct seccomp_data, arch)) { + emit_mov_i(r_A, AUDIT_ARCH_ARM, ctx); + break; + } + ctx->seen |= SEEN_CALL; + emit_mov_i(ARM_R3, (u32)seccomp_bpf_load, ctx); + emit_mov_i(ARM_R0, k, ctx); + emit_blx_r(ARM_R3, ctx); + emit(ARM_MOV_R(r_A, ARM_R0), ctx); + break; +#endif default: return -1; } -- 1.8.1.2 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/