From patchwork Tue Nov 3 13:42:57 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: YiFei Zhu X-Patchwork-Id: 11877879 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 7EC9F6A2 for ; Tue, 3 Nov 2020 14:58:27 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 586E920757 for ; Tue, 3 Nov 2020 14:58:27 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="HUmeo8PK" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729658AbgKCOUt (ORCPT ); Tue, 3 Nov 2020 09:20:49 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:40264 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726312AbgKCNpI (ORCPT ); Tue, 3 Nov 2020 08:45:08 -0500 Received: from mail-qk1-x741.google.com (mail-qk1-x741.google.com [IPv6:2607:f8b0:4864:20::741]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id AB9D9C0613D1; Tue, 3 Nov 2020 05:45:08 -0800 (PST) Received: by mail-qk1-x741.google.com with SMTP id 140so14628191qko.2; Tue, 03 Nov 2020 05:45:08 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=/wWgXpwOKfWu89zfH4z55YdVS4FoKgsyU3KjhUPw2Xk=; b=HUmeo8PKFkCINZljvfRc+P6j2X0+0GOhvVUFZGwDVi5RBcL6yCRRP7JuB0zv9c9+Po E3+9kj9NX57UzwwDZNGdD8iaYBGU9wXX967tHeoCgvkJm1CovDmhTO1emhffrLi5usDF 0oEzRtLhoIuA39ggcO6eQcTv/OGvRmPgCQX4sTZrzio50ODOqs0YICXq0MgBjQAfHPdz xl7tXTacq4qNhz9LC51MS1M++unu3TcfcbkGRzSQxWGdRezIwQbhQELfkQD+RH+S21A/ sax7yhctLMgZTMGgygja3clLmsRRE7W8PkbbGI7EUIeZ8EaqV18ap7HIw7j/Z7WF3HJx 8pfg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=/wWgXpwOKfWu89zfH4z55YdVS4FoKgsyU3KjhUPw2Xk=; b=L0THD44tUiobW8XHwy4mwOF08UXf/8Z/E7FezRNEKdPPigyZrw5AOfr+T56qEuZiBV ZYhQeSevN+7xVzRVmi3C7WZpPa2Rc6rROTXe85qARb3s8rXKqbngzJA/CDYJZXy9/JRz CayUhwy96wmaoiDAkjoIvPwo5wgHgU3UEsBYvD86ZMw3GozNBV1QRpEixmAyir3ksbRm khhIWBNpBXd04GyBYYT4jHTVzE2fwoLuC2wpNb5T4At1pwkOUqLezuSoJSgRneayGTua RjfnjDi3wfPkYH3DJm3btIQ3LezYW7wO+oy1QxQ5KjEWWTx5ztxbWx6V2eTgmw532B8c XrYQ== X-Gm-Message-State: AOAM531xUy51m/4w23nI6W2NheIaKK9B1OLwMK3p7yLWnBgJpumd7VNM LDCVod/dMGDJbWJyJpWaKQc= X-Google-Smtp-Source: ABdhPJyHAHCGbEEm09WION+/UIzzZ/lrqbH487CGEGOVROPc59579zIEupD9GaMmhFNRyF9+2N11RQ== X-Received: by 2002:ae9:dec5:: with SMTP id s188mr20227157qkf.250.1604411107951; Tue, 03 Nov 2020 05:45:07 -0800 (PST) Received: from zhuyifei1999-ThinkPad-T480.gw.illinois.edu ([2620:0:e00:400f::31]) by smtp.gmail.com with ESMTPSA id a206sm7356568qkb.64.2020.11.03.05.45.06 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 03 Nov 2020 05:45:07 -0800 (PST) From: YiFei Zhu To: containers@lists.linux-foundation.org Cc: YiFei Zhu , linux-csky@vger.kernel.org, linux-parisc@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, linux-riscv@lists.infradead.org, linux-s390@vger.kernel.org, linux-sh@vger.kernel.org, linux-xtensa@linux-xtensa.org, linux-kernel@vger.kernel.org, Aleksa Sarai , Andrea Arcangeli , Andy Lutomirski , David Laight , Dimitrios Skarlatos , Giuseppe Scrivano , Hubertus Franke , Jack Chen , Jann Horn , Josep Torrellas , Kees Cook , Tianyin Xu , Tobin Feldman-Fitzthum , Tycho Andersen , Valentin Rothberg , Will Drewry Subject: [PATCH seccomp 1/8] csky: Enable seccomp architecture tracking Date: Tue, 3 Nov 2020 07:42:57 -0600 Message-Id: X-Mailer: git-send-email 2.29.2 In-Reply-To: References: MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-parisc@vger.kernel.org From: YiFei Zhu To enable seccomp constant action bitmaps, we need to have a static mapping to the audit architecture and system call table size. Add these for csky. Signed-off-by: YiFei Zhu --- arch/csky/include/asm/Kbuild | 1 - arch/csky/include/asm/seccomp.h | 11 +++++++++++ 2 files changed, 11 insertions(+), 1 deletion(-) create mode 100644 arch/csky/include/asm/seccomp.h diff --git a/arch/csky/include/asm/Kbuild b/arch/csky/include/asm/Kbuild index 64876e59e2ef..93372255984d 100644 --- a/arch/csky/include/asm/Kbuild +++ b/arch/csky/include/asm/Kbuild @@ -4,6 +4,5 @@ generic-y += gpio.h generic-y += kvm_para.h generic-y += local64.h generic-y += qrwlock.h -generic-y += seccomp.h generic-y += user.h generic-y += vmlinux.lds.h diff --git a/arch/csky/include/asm/seccomp.h b/arch/csky/include/asm/seccomp.h new file mode 100644 index 000000000000..d33e758126fb --- /dev/null +++ b/arch/csky/include/asm/seccomp.h @@ -0,0 +1,11 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +#ifndef _ASM_SECCOMP_H +#define _ASM_SECCOMP_H + +#include + +#define SECCOMP_ARCH_NATIVE AUDIT_ARCH_CSKY +#define SECCOMP_ARCH_NATIVE_NR NR_syscalls +#define SECCOMP_ARCH_NATIVE_NAME "csky" + +#endif /* _ASM_SECCOMP_H */ From patchwork Tue Nov 3 13:42:58 2020 Content-Type: text/plain; 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Tue, 03 Nov 2020 05:45:10 -0800 (PST) Received: from zhuyifei1999-ThinkPad-T480.gw.illinois.edu ([2620:0:e00:400f::31]) by smtp.gmail.com with ESMTPSA id a206sm7356568qkb.64.2020.11.03.05.45.08 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 03 Nov 2020 05:45:08 -0800 (PST) From: YiFei Zhu To: containers@lists.linux-foundation.org Cc: YiFei Zhu , linux-csky@vger.kernel.org, linux-parisc@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, linux-riscv@lists.infradead.org, linux-s390@vger.kernel.org, linux-sh@vger.kernel.org, linux-xtensa@linux-xtensa.org, linux-kernel@vger.kernel.org, Aleksa Sarai , Andrea Arcangeli , Andy Lutomirski , David Laight , Dimitrios Skarlatos , Giuseppe Scrivano , Hubertus Franke , Jack Chen , Jann Horn , Josep Torrellas , Kees Cook , Tianyin Xu , Tobin Feldman-Fitzthum , Tycho Andersen , Valentin Rothberg , Will Drewry Subject: [PATCH seccomp 2/8] parisc: Enable seccomp architecture tracking Date: Tue, 3 Nov 2020 07:42:58 -0600 Message-Id: <9bb86c546eda753adf5270425e7353202dbce87c.1604410035.git.yifeifz2@illinois.edu> X-Mailer: git-send-email 2.29.2 In-Reply-To: References: MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-parisc@vger.kernel.org From: YiFei Zhu To enable seccomp constant action bitmaps, we need to have a static mapping to the audit architecture and system call table size. Add these for parisc. Signed-off-by: YiFei Zhu Acked-by: Helge Deller --- arch/parisc/include/asm/Kbuild | 1 - arch/parisc/include/asm/seccomp.h | 22 ++++++++++++++++++++++ 2 files changed, 22 insertions(+), 1 deletion(-) create mode 100644 arch/parisc/include/asm/seccomp.h diff --git a/arch/parisc/include/asm/Kbuild b/arch/parisc/include/asm/Kbuild index e3ee5c0bfe80..f16c4db80116 100644 --- a/arch/parisc/include/asm/Kbuild +++ b/arch/parisc/include/asm/Kbuild @@ -5,5 +5,4 @@ generated-y += syscall_table_c32.h generic-y += kvm_para.h generic-y += local64.h generic-y += mcs_spinlock.h -generic-y += seccomp.h generic-y += user.h diff --git a/arch/parisc/include/asm/seccomp.h b/arch/parisc/include/asm/seccomp.h new file mode 100644 index 000000000000..b058b2220322 --- /dev/null +++ b/arch/parisc/include/asm/seccomp.h @@ -0,0 +1,22 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +#ifndef _ASM_SECCOMP_H +#define _ASM_SECCOMP_H + +#include + +#ifdef CONFIG_64BIT +# define SECCOMP_ARCH_NATIVE AUDIT_ARCH_PARISC64 +# define SECCOMP_ARCH_NATIVE_NR NR_syscalls +# define SECCOMP_ARCH_NATIVE_NAME "parisc64" +# ifdef CONFIG_COMPAT +# define SECCOMP_ARCH_COMPAT AUDIT_ARCH_PARISC +# define SECCOMP_ARCH_COMPAT_NR NR_syscalls +# define SECCOMP_ARCH_COMPAT_NAME "parisc" +# endif +#else /* !CONFIG_64BIT */ +# define SECCOMP_ARCH_NATIVE AUDIT_ARCH_PARISC +# define SECCOMP_ARCH_NATIVE_NR NR_syscalls +# define SECCOMP_ARCH_NATIVE_NAME "parisc" +#endif + +#endif /* _ASM_SECCOMP_H */ From patchwork Tue Nov 3 13:42:59 2020 Content-Type: text/plain; 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Tue, 03 Nov 2020 05:45:12 -0800 (PST) Received: from zhuyifei1999-ThinkPad-T480.gw.illinois.edu ([2620:0:e00:400f::31]) by smtp.gmail.com with ESMTPSA id a206sm7356568qkb.64.2020.11.03.05.45.10 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 03 Nov 2020 05:45:11 -0800 (PST) From: YiFei Zhu To: containers@lists.linux-foundation.org Cc: YiFei Zhu , linux-csky@vger.kernel.org, linux-parisc@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, linux-riscv@lists.infradead.org, linux-s390@vger.kernel.org, linux-sh@vger.kernel.org, linux-xtensa@linux-xtensa.org, linux-kernel@vger.kernel.org, Aleksa Sarai , Andrea Arcangeli , Andy Lutomirski , David Laight , Dimitrios Skarlatos , Giuseppe Scrivano , Hubertus Franke , Jack Chen , Jann Horn , Josep Torrellas , Kees Cook , Tianyin Xu , Tobin Feldman-Fitzthum , Tycho Andersen , Valentin Rothberg , Will Drewry Subject: [PATCH seccomp 3/8] powerpc: Enable seccomp architecture tracking Date: Tue, 3 Nov 2020 07:42:59 -0600 Message-Id: <4ec2970fcc819eb4d5dac2bd35233ccdadfda845.1604410035.git.yifeifz2@illinois.edu> X-Mailer: git-send-email 2.29.2 In-Reply-To: References: MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-parisc@vger.kernel.org From: YiFei Zhu To enable seccomp constant action bitmaps, we need to have a static mapping to the audit architecture and system call table size. Add these for powerpc. Signed-off-by: YiFei Zhu --- arch/powerpc/include/asm/seccomp.h | 21 +++++++++++++++++++++ 1 file changed, 21 insertions(+) diff --git a/arch/powerpc/include/asm/seccomp.h b/arch/powerpc/include/asm/seccomp.h index 51209f6071c5..3efcc83e9cc6 100644 --- a/arch/powerpc/include/asm/seccomp.h +++ b/arch/powerpc/include/asm/seccomp.h @@ -8,4 +8,25 @@ #include +#ifdef __LITTLE_ENDIAN__ +#define __SECCOMP_ARCH_LE_BIT __AUDIT_ARCH_LE +#else +#define __SECCOMP_ARCH_LE_BIT 0 +#endif + +#ifdef CONFIG_PPC64 +# define SECCOMP_ARCH_NATIVE (AUDIT_ARCH_PPC64 | __SECCOMP_ARCH_LE) +# define SECCOMP_ARCH_NATIVE_NR NR_syscalls +# define SECCOMP_ARCH_NATIVE_NAME "ppc64" +# ifdef CONFIG_COMPAT +# define SECCOMP_ARCH_COMPAT (AUDIT_ARCH_PPC | __SECCOMP_ARCH_LE) +# define SECCOMP_ARCH_COMPAT_NR NR_syscalls +# define SECCOMP_ARCH_COMPAT_NAME "powerpc" +# endif +#else /* !CONFIG_PPC64 */ +# define SECCOMP_ARCH_NATIVE (AUDIT_ARCH_PPC | __SECCOMP_ARCH_LE) +# define SECCOMP_ARCH_NATIVE_NR NR_syscalls +# define SECCOMP_ARCH_NATIVE_NAME "powerpc" +#endif + #endif /* _ASM_POWERPC_SECCOMP_H */ From patchwork Tue Nov 3 13:43:00 2020 Content-Type: text/plain; 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Tue, 03 Nov 2020 05:45:13 -0800 (PST) Received: from zhuyifei1999-ThinkPad-T480.gw.illinois.edu ([2620:0:e00:400f::31]) by smtp.gmail.com with ESMTPSA id a206sm7356568qkb.64.2020.11.03.05.45.12 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 03 Nov 2020 05:45:13 -0800 (PST) From: YiFei Zhu To: containers@lists.linux-foundation.org Cc: YiFei Zhu , linux-csky@vger.kernel.org, linux-parisc@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, linux-riscv@lists.infradead.org, linux-s390@vger.kernel.org, linux-sh@vger.kernel.org, linux-xtensa@linux-xtensa.org, linux-kernel@vger.kernel.org, Aleksa Sarai , Andrea Arcangeli , Andy Lutomirski , David Laight , Dimitrios Skarlatos , Giuseppe Scrivano , Hubertus Franke , Jack Chen , Jann Horn , Josep Torrellas , Kees Cook , Tianyin Xu , Tobin Feldman-Fitzthum , Tycho Andersen , Valentin Rothberg , Will Drewry Subject: [PATCH seccomp 4/8] riscv: Enable seccomp architecture tracking Date: Tue, 3 Nov 2020 07:43:00 -0600 Message-Id: X-Mailer: git-send-email 2.29.2 In-Reply-To: References: MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-parisc@vger.kernel.org From: YiFei Zhu To enable seccomp constant action bitmaps, we need to have a static mapping to the audit architecture and system call table size. Add these for riscv. Signed-off-by: YiFei Zhu --- arch/riscv/include/asm/seccomp.h | 10 ++++++++++ 1 file changed, 10 insertions(+) diff --git a/arch/riscv/include/asm/seccomp.h b/arch/riscv/include/asm/seccomp.h index bf7744ee3b3d..c7ee6a3507be 100644 --- a/arch/riscv/include/asm/seccomp.h +++ b/arch/riscv/include/asm/seccomp.h @@ -7,4 +7,14 @@ #include +#ifdef CONFIG_64BIT +# define SECCOMP_ARCH_NATIVE AUDIT_ARCH_RISCV64 +# define SECCOMP_ARCH_NATIVE_NR NR_syscalls +# define SECCOMP_ARCH_NATIVE_NAME "riscv64" +#else /* !CONFIG_64BIT */ +# define SECCOMP_ARCH_NATIVE AUDIT_ARCH_RISCV32 +# define SECCOMP_ARCH_NATIVE_NR NR_syscalls +# define SECCOMP_ARCH_NATIVE_NAME "riscv32" +#endif + #endif /* _ASM_SECCOMP_H */ From patchwork Tue Nov 3 13:43:01 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: YiFei Zhu X-Patchwork-Id: 11877753 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id EFB466A2 for ; Tue, 3 Nov 2020 14:22:29 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id CBB4622264 for ; Tue, 3 Nov 2020 14:22:29 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="WQlGQ9Jd" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729534AbgKCOUr (ORCPT ); Tue, 3 Nov 2020 09:20:47 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:40292 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1729240AbgKCNpQ (ORCPT ); Tue, 3 Nov 2020 08:45:16 -0500 Received: from mail-qk1-x741.google.com (mail-qk1-x741.google.com [IPv6:2607:f8b0:4864:20::741]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 4C86AC0613D1; Tue, 3 Nov 2020 05:45:16 -0800 (PST) Received: by mail-qk1-x741.google.com with SMTP id k9so14611729qki.6; Tue, 03 Nov 2020 05:45:16 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=+eMXBOnvKPM7N/Eu0cs4UA1I6FeurfdgB6uFLVTMPX8=; b=WQlGQ9Jd6IJQey7nb9UMUDYsL+DEjmMTVkMHPOOrYSdV926tvA93ywvzKvPW9EdJzQ xWYruju83XXsh1i6XxcvxRg6hDqU6tq8BaNfGIDHsg2pgJYtsAkvynEeGwGPRGe+ZPsx biGcniO7POm0x08s1Iwq88HHNGiqadVQYcORh5b/WkN2ytRV8n2H7zXHbG9CyN36/TNs CvFVpr4PvgANBbzTT2RtpSiuCEWpI/CT6RmO+Fk+zaNRO64hUzWUoNMlpPKDi4ZwlNos 6rRlllg7BYoJdX53s9pkkLBvkmTEqozVXkK0+PARPMrbpsjLaiSLI/uef0UWqLlg9En5 LfmQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=+eMXBOnvKPM7N/Eu0cs4UA1I6FeurfdgB6uFLVTMPX8=; b=HaayDovTTYcLgBXGwRpwF834DWJCnWt26Nyrkv9jU0mFLzanG2jws27siHN0vFu1kL VF7IUlyXKExnFbU23Seq5Ym8g3b5R5a0cqH7hTVCOiYhK8IM7h0nH/r+h6U6fhtGCUYF TnhvbOEfI+CQR1R72okp0nMIiDiMOv0U1ljFYam0QfbnAEqWBX3Ib/Y2f7vmOFFejeCJ sAG/NsGhV5QLm8ASVCFb6Onx6pOkFUQY/5pwzl76uXfx4ztyGxY+c06YEim8zJbZ00xH B4aF6DWckYlYinuJK8g+pNVqTKusGApegVWZUgvMHgJaMFv4GG/V+sb0X679CPFof7Rp Jfbw== X-Gm-Message-State: AOAM532hEiDGtxucYTQXXbbmODfRf6sBpMLd462RD8tJ91Hnls+OYOFH 96ykj+alVkdTvHkz+tJyCmE= X-Google-Smtp-Source: ABdhPJwPGCoGB0mzNqbRbE7eqaQrs2dVEZ+ysMN9iFWpphI5Jv582QKy4aIVAjZqImUIW48ZcJyckw== X-Received: by 2002:a37:6187:: with SMTP id v129mr8374191qkb.31.1604411115473; Tue, 03 Nov 2020 05:45:15 -0800 (PST) Received: from zhuyifei1999-ThinkPad-T480.gw.illinois.edu ([2620:0:e00:400f::31]) by smtp.gmail.com with ESMTPSA id a206sm7356568qkb.64.2020.11.03.05.45.14 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 03 Nov 2020 05:45:14 -0800 (PST) From: YiFei Zhu To: containers@lists.linux-foundation.org Cc: YiFei Zhu , linux-csky@vger.kernel.org, linux-parisc@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, linux-riscv@lists.infradead.org, linux-s390@vger.kernel.org, linux-sh@vger.kernel.org, linux-xtensa@linux-xtensa.org, linux-kernel@vger.kernel.org, Aleksa Sarai , Andrea Arcangeli , Andy Lutomirski , David Laight , Dimitrios Skarlatos , Giuseppe Scrivano , Hubertus Franke , Jack Chen , Jann Horn , Josep Torrellas , Kees Cook , Tianyin Xu , Tobin Feldman-Fitzthum , Tycho Andersen , Valentin Rothberg , Will Drewry Subject: [PATCH seccomp 5/8] s390: Enable seccomp architecture tracking Date: Tue, 3 Nov 2020 07:43:01 -0600 Message-Id: <0fbe0c14d598e18effad3b648ab4808f9cd95eba.1604410035.git.yifeifz2@illinois.edu> X-Mailer: git-send-email 2.29.2 In-Reply-To: References: MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-parisc@vger.kernel.org From: YiFei Zhu To enable seccomp constant action bitmaps, we need to have a static mapping to the audit architecture and system call table size. Add these for s390. Signed-off-by: YiFei Zhu Acked-by: Heiko Carstens --- arch/s390/include/asm/seccomp.h | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/arch/s390/include/asm/seccomp.h b/arch/s390/include/asm/seccomp.h index 795bbe0d7ca6..71d46f0ba97b 100644 --- a/arch/s390/include/asm/seccomp.h +++ b/arch/s390/include/asm/seccomp.h @@ -16,4 +16,13 @@ #include +#define SECCOMP_ARCH_NATIVE AUDIT_ARCH_S390X +#define SECCOMP_ARCH_NATIVE_NR NR_syscalls +#define SECCOMP_ARCH_NATIVE_NAME "s390x" +#ifdef CONFIG_COMPAT +# define SECCOMP_ARCH_COMPAT AUDIT_ARCH_S390 +# define SECCOMP_ARCH_COMPAT_NR NR_syscalls +# define SECCOMP_ARCH_COMPAT_NAME "s390" +#endif + #endif /* _ASM_S390_SECCOMP_H */ From patchwork Tue Nov 3 13:43:02 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: YiFei Zhu X-Patchwork-Id: 11877675 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 5C378921 for ; Tue, 3 Nov 2020 14:12:51 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 339A32236F for ; Tue, 3 Nov 2020 14:12:51 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="PMy31dQJ" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729328AbgKCNqw (ORCPT ); Tue, 3 Nov 2020 08:46:52 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:40294 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1729241AbgKCNpS (ORCPT ); Tue, 3 Nov 2020 08:45:18 -0500 Received: from mail-qt1-x844.google.com (mail-qt1-x844.google.com [IPv6:2607:f8b0:4864:20::844]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 1A38EC0613D1; Tue, 3 Nov 2020 05:45:18 -0800 (PST) Received: by mail-qt1-x844.google.com with SMTP id f93so11553474qtb.10; Tue, 03 Nov 2020 05:45:18 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=9/hEAP0td3DKDEonOQx/BrDGR67nDcwn+HdeFH8wdFU=; b=PMy31dQJueagbOReuh4TyHKDHnWAkQvYrpAxEIErX4xPuMN4MlNB2tU7IkrAnlx5qR uhiVg0r41UxTv/gr4jsg2Wl8FCoeHTXIjjT8/6kSbvOBLPV4TYfJCrk8J0g2rFJRrlKD 1hx2REJtkovGnmyDSF4OhzIchxZlhVI33gOeYruCrarfFMdqwMbuze+ne7D3usBg1+Vq DnVMU0VjWHDphquu2ZmwzzqKtLL7eO8+3YSpHLjN+/oLDv2OFzem5txt9rfYq8LN1OI+ 2+w6DzMI4hNFhProTsfpRsIxSVaEXoTrzgUyJ2J91ehNlbAFEuRmMAY+8h22ZlecP47B /smQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=9/hEAP0td3DKDEonOQx/BrDGR67nDcwn+HdeFH8wdFU=; b=FAOUUw8qgEFsLyntO8HMv17VykQMUfNp0Lo06RXXleJk80dVCX0wyKHf4l2Y/q6nb8 AeaqzWnhimpH3y6g8lMqFWh+UwmM6V+WXstJlv1DDIeZvSnNAgSCwryqhP8Ntr6knMHV OuKB1v5mz0DiAoa8eytYEinPfSjZr/GqwpnXq19VRIvZF7XSRNPyMs+bubf+lS7o1u9z VygetQe6GuvoyZ/MJUkPu/R0eKKxJc8Vbv0Eu76m9NGz1SC7WuARpMJi8ZaQ7XJkrVDv XzboR4LkhS3ZYockGV8p+B55E0LZe2hVO6P1lt81b66Q1yHh3C0iwpWnz7I2bv9aOare 1TVQ== X-Gm-Message-State: AOAM530PXGjSHEPMfnR9aUytKqM6P2ZEGRz/yEUsltJuQyQsrKabs+lT xSUzzLl6k8zpOhd0vhsjhio= X-Google-Smtp-Source: ABdhPJxZpuM+FL2rdeo54BZFwmZgnUAh5zGzhGJrI7NUoaE9OPGoZYZ+/yTeLM9bmqKuOcXR8gpKgw== X-Received: by 2002:aed:2064:: with SMTP id 91mr19450606qta.383.1604411117345; Tue, 03 Nov 2020 05:45:17 -0800 (PST) Received: from zhuyifei1999-ThinkPad-T480.gw.illinois.edu ([2620:0:e00:400f::31]) by smtp.gmail.com with ESMTPSA id a206sm7356568qkb.64.2020.11.03.05.45.15 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 03 Nov 2020 05:45:16 -0800 (PST) From: YiFei Zhu To: containers@lists.linux-foundation.org Cc: YiFei Zhu , linux-csky@vger.kernel.org, linux-parisc@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, linux-riscv@lists.infradead.org, linux-s390@vger.kernel.org, linux-sh@vger.kernel.org, linux-xtensa@linux-xtensa.org, linux-kernel@vger.kernel.org, Aleksa Sarai , Andrea Arcangeli , Andy Lutomirski , David Laight , Dimitrios Skarlatos , Giuseppe Scrivano , Hubertus Franke , Jack Chen , Jann Horn , Josep Torrellas , Kees Cook , Tianyin Xu , Tobin Feldman-Fitzthum , Tycho Andersen , Valentin Rothberg , Will Drewry Subject: [PATCH seccomp 6/8] sh: Enable seccomp architecture tracking Date: Tue, 3 Nov 2020 07:43:02 -0600 Message-Id: <46d7f8d02bdaadf364a59db2d60f43466227b3af.1604410035.git.yifeifz2@illinois.edu> X-Mailer: git-send-email 2.29.2 In-Reply-To: References: MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-parisc@vger.kernel.org From: YiFei Zhu To enable seccomp constant action bitmaps, we need to have a static mapping to the audit architecture and system call table size. Add these for sh. Signed-off-by: YiFei Zhu --- arch/sh/include/asm/seccomp.h | 10 ++++++++++ 1 file changed, 10 insertions(+) diff --git a/arch/sh/include/asm/seccomp.h b/arch/sh/include/asm/seccomp.h index 54111e4d32b8..b8d169292a34 100644 --- a/arch/sh/include/asm/seccomp.h +++ b/arch/sh/include/asm/seccomp.h @@ -8,4 +8,14 @@ #define __NR_seccomp_exit __NR_exit #define __NR_seccomp_sigreturn __NR_rt_sigreturn +#ifdef CONFIG_CPU_LITTLE_ENDIAN +#define __SECCOMP_ARCH_LE_BIT __AUDIT_ARCH_LE +#else +#define __SECCOMP_ARCH_LE_BIT 0 +#endif + +#define SECCOMP_ARCH_NATIVE (AUDIT_ARCH_SH | __SECCOMP_ARCH_LE) +#define SECCOMP_ARCH_NATIVE_NR NR_syscalls +#define SECCOMP_ARCH_NATIVE_NAME "sh" + #endif /* __ASM_SECCOMP_H */ From patchwork Tue Nov 3 13:43:03 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: YiFei Zhu X-Patchwork-Id: 11877749 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 17650921 for ; Tue, 3 Nov 2020 14:18:45 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id DF41522280 for ; Tue, 3 Nov 2020 14:18:44 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="b4PJS/xa" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729250AbgKCNqu (ORCPT ); Tue, 3 Nov 2020 08:46:50 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:40302 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1729242AbgKCNpT (ORCPT ); Tue, 3 Nov 2020 08:45:19 -0500 Received: from mail-qk1-x744.google.com (mail-qk1-x744.google.com [IPv6:2607:f8b0:4864:20::744]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id A3422C0613D1; Tue, 3 Nov 2020 05:45:19 -0800 (PST) Received: by mail-qk1-x744.google.com with SMTP id x20so14628239qkn.1; Tue, 03 Nov 2020 05:45:19 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=KyUFBIsp7WG/ZlJY7JJxE8NR9eUIpLAxO9Zr6R0PBAI=; b=b4PJS/xarNSgluAWCDQQJdu5ZZO0VU1I/CVu92i5vqJojdmesNzdpHU7yArgmVQ/E0 ssbV0IRGKePz0hLGbtulnwYnTx5COwyQyc9m5w6wHYmkYcfAi0KMHRRx7s4bial5QlHm FvgIq+A4dw+gBa8aET875i6MrhNYYoEziVxW0mYaQlwHJjIC17MKQQffriRcRcrqbvIZ E0DUUKInWpAcW0rkp9bF5XrHmo61/Wt1H/vsEPSTiCc6yDtBv1y+2E2shnOXWuZJykAv qixeNSrBN1O663ndDaowUg7ftIsFgDEFacIeZyHTHWsjCEpnDR4tkoP+lBgPM5gFOtbX RUdA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=KyUFBIsp7WG/ZlJY7JJxE8NR9eUIpLAxO9Zr6R0PBAI=; b=KYzWSDYo5+d4+t2Ti1LTXBmCC8pJohP47Izm1wxrpb1nge9/+xt8vNhwNqw3deeCrG GhoMThMmiyzKg14mqgc9Z2/yst54Gm83xdWX4x4D7BRMEIl7JiRoi/QacFS5eHTbA9M1 ANWOhSXx484Y8HPHsANZics2wNQVdcKg8m6d4ylaxx4RNGflkr0aezSoULlFTdSdvI+z zIMoYERP3kzWHjYybwtvFfD0LcxSIawWYUSUWD+8ECYWbljofgVwstelJIVVUbe32pkw B/o9zA4DxGEUENFCH4EpouVZHqkYLZNUZdC/bKS9mMkC+Tp3OhQcBFPTNGI/jxIrA48A Zxmg== X-Gm-Message-State: AOAM531Ymm2npH7/k1RYsZfJ1kkeT/tqYuMsHo78b6lQ2SDoXSC0dF2B SZ/WoeW248P7F/Uq942dRA8= X-Google-Smtp-Source: ABdhPJxjlZ3tKnk2e7vxZIf8aOb5eHzCPcpqw48aBWIjBaLIjY56iC7mD5NkhJDWu4rwTzCntUVI8A== X-Received: by 2002:a05:620a:62b:: with SMTP id 11mr20584746qkv.229.1604411118944; Tue, 03 Nov 2020 05:45:18 -0800 (PST) Received: from zhuyifei1999-ThinkPad-T480.gw.illinois.edu ([2620:0:e00:400f::31]) by smtp.gmail.com with ESMTPSA id a206sm7356568qkb.64.2020.11.03.05.45.17 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 03 Nov 2020 05:45:18 -0800 (PST) From: YiFei Zhu To: containers@lists.linux-foundation.org Cc: YiFei Zhu , linux-csky@vger.kernel.org, linux-parisc@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, linux-riscv@lists.infradead.org, linux-s390@vger.kernel.org, linux-sh@vger.kernel.org, linux-xtensa@linux-xtensa.org, linux-kernel@vger.kernel.org, Aleksa Sarai , Andrea Arcangeli , Andy Lutomirski , David Laight , Dimitrios Skarlatos , Giuseppe Scrivano , Hubertus Franke , Jack Chen , Jann Horn , Josep Torrellas , Kees Cook , Tianyin Xu , Tobin Feldman-Fitzthum , Tycho Andersen , Valentin Rothberg , Will Drewry Subject: [PATCH seccomp 7/8] xtensa: Enable seccomp architecture tracking Date: Tue, 3 Nov 2020 07:43:03 -0600 Message-Id: X-Mailer: git-send-email 2.29.2 In-Reply-To: References: MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-parisc@vger.kernel.org From: YiFei Zhu To enable seccomp constant action bitmaps, we need to have a static mapping to the audit architecture and system call table size. Add these for xtensa. Signed-off-by: YiFei Zhu --- arch/xtensa/include/asm/Kbuild | 1 - arch/xtensa/include/asm/seccomp.h | 11 +++++++++++ 2 files changed, 11 insertions(+), 1 deletion(-) create mode 100644 arch/xtensa/include/asm/seccomp.h diff --git a/arch/xtensa/include/asm/Kbuild b/arch/xtensa/include/asm/Kbuild index c59c42a1221a..9718e9593564 100644 --- a/arch/xtensa/include/asm/Kbuild +++ b/arch/xtensa/include/asm/Kbuild @@ -7,5 +7,4 @@ generic-y += mcs_spinlock.h generic-y += param.h generic-y += qrwlock.h generic-y += qspinlock.h -generic-y += seccomp.h generic-y += user.h diff --git a/arch/xtensa/include/asm/seccomp.h b/arch/xtensa/include/asm/seccomp.h new file mode 100644 index 000000000000..f1cb6b0a9e1f --- /dev/null +++ b/arch/xtensa/include/asm/seccomp.h @@ -0,0 +1,11 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +#ifndef _ASM_SECCOMP_H +#define _ASM_SECCOMP_H + +#include + +#define SECCOMP_ARCH_NATIVE AUDIT_ARCH_XTENSA +#define SECCOMP_ARCH_NATIVE_NR NR_syscalls +#define SECCOMP_ARCH_NATIVE_NAME "xtensa" + +#endif /* _ASM_SECCOMP_H */ From patchwork Tue Nov 3 13:43:04 2020 Content-Type: text/plain; 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Tue, 03 Nov 2020 05:45:20 -0800 (PST) Received: from zhuyifei1999-ThinkPad-T480.gw.illinois.edu ([2620:0:e00:400f::31]) by smtp.gmail.com with ESMTPSA id a206sm7356568qkb.64.2020.11.03.05.45.19 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 03 Nov 2020 05:45:19 -0800 (PST) From: YiFei Zhu To: containers@lists.linux-foundation.org Cc: YiFei Zhu , linux-csky@vger.kernel.org, linux-parisc@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, linux-riscv@lists.infradead.org, linux-s390@vger.kernel.org, linux-sh@vger.kernel.org, linux-xtensa@linux-xtensa.org, linux-kernel@vger.kernel.org, Aleksa Sarai , Andrea Arcangeli , Andy Lutomirski , David Laight , Dimitrios Skarlatos , Giuseppe Scrivano , Hubertus Franke , Jack Chen , Jann Horn , Josep Torrellas , Kees Cook , Tianyin Xu , Tobin Feldman-Fitzthum , Tycho Andersen , Valentin Rothberg , Will Drewry Subject: [PATCH seccomp 8/8] seccomp/cache: Report cache data through /proc/pid/seccomp_cache Date: Tue, 3 Nov 2020 07:43:04 -0600 Message-Id: <6bf174724c135a880fb8cbe602b665f613bab58e.1604410035.git.yifeifz2@illinois.edu> X-Mailer: git-send-email 2.29.2 In-Reply-To: References: MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-parisc@vger.kernel.org From: YiFei Zhu Currently the kernel does not provide an infrastructure to translate architecture numbers to a human-readable name. Translating syscall numbers to syscall names is possible through FTRACE_SYSCALL infrastructure but it does not provide support for compat syscalls. This will create a file for each PID as /proc/pid/seccomp_cache. The file will be empty when no seccomp filters are loaded, or be in the format of: where ALLOW means the cache is guaranteed to allow the syscall, and filter means the cache will pass the syscall to the BPF filter. For the docker default profile on x86_64 it looks like: x86_64 0 ALLOW x86_64 1 ALLOW x86_64 2 ALLOW x86_64 3 ALLOW [...] x86_64 132 ALLOW x86_64 133 ALLOW x86_64 134 FILTER x86_64 135 FILTER x86_64 136 FILTER x86_64 137 ALLOW x86_64 138 ALLOW x86_64 139 FILTER x86_64 140 ALLOW x86_64 141 ALLOW [...] This file is guarded by CONFIG_SECCOMP_CACHE_DEBUG with a default of N because I think certain users of seccomp might not want the application to know which syscalls are definitely usable. For the same reason, it is also guarded by CAP_SYS_ADMIN. Suggested-by: Jann Horn Link: https://lore.kernel.org/lkml/CAG48ez3Ofqp4crXGksLmZY6=fGrF_tWyUCg7PBkAetvbbOPeOA@mail.gmail.com/ Signed-off-by: YiFei Zhu --- arch/Kconfig | 15 +++++++++++ fs/proc/base.c | 6 +++++ include/linux/seccomp.h | 7 +++++ kernel/seccomp.c | 59 +++++++++++++++++++++++++++++++++++++++++ 4 files changed, 87 insertions(+) diff --git a/arch/Kconfig b/arch/Kconfig index 56b6ccc0e32d..6e2eb7171da0 100644 --- a/arch/Kconfig +++ b/arch/Kconfig @@ -514,6 +514,21 @@ config SECCOMP_FILTER See Documentation/userspace-api/seccomp_filter.rst for details. +config SECCOMP_CACHE_DEBUG + bool "Show seccomp filter cache status in /proc/pid/seccomp_cache" + depends on SECCOMP + depends on SECCOMP_FILTER && !HAVE_SPARSE_SYSCALL_NR + depends on PROC_FS + help + This enables the /proc/pid/seccomp_cache interface to monitor + seccomp cache data. The file format is subject to change. Reading + the file requires CAP_SYS_ADMIN. + + This option is for debugging only. Enabling presents the risk that + an adversary may be able to infer the seccomp filter logic. + + If unsure, say N. + config HAVE_ARCH_STACKLEAK bool help diff --git a/fs/proc/base.c b/fs/proc/base.c index 0f707003dda5..d652f9dbaecc 100644 --- a/fs/proc/base.c +++ b/fs/proc/base.c @@ -3261,6 +3261,9 @@ static const struct pid_entry tgid_base_stuff[] = { #ifdef CONFIG_PROC_PID_ARCH_STATUS ONE("arch_status", S_IRUGO, proc_pid_arch_status), #endif +#ifdef CONFIG_SECCOMP_CACHE_DEBUG + ONE("seccomp_cache", S_IRUSR, proc_pid_seccomp_cache), +#endif }; static int proc_tgid_base_readdir(struct file *file, struct dir_context *ctx) @@ -3590,6 +3593,9 @@ static const struct pid_entry tid_base_stuff[] = { #ifdef CONFIG_PROC_PID_ARCH_STATUS ONE("arch_status", S_IRUGO, proc_pid_arch_status), #endif +#ifdef CONFIG_SECCOMP_CACHE_DEBUG + ONE("seccomp_cache", S_IRUSR, proc_pid_seccomp_cache), +#endif }; static int proc_tid_base_readdir(struct file *file, struct dir_context *ctx) diff --git a/include/linux/seccomp.h b/include/linux/seccomp.h index 02aef2844c38..76963ec4641a 100644 --- a/include/linux/seccomp.h +++ b/include/linux/seccomp.h @@ -121,4 +121,11 @@ static inline long seccomp_get_metadata(struct task_struct *task, return -EINVAL; } #endif /* CONFIG_SECCOMP_FILTER && CONFIG_CHECKPOINT_RESTORE */ + +#ifdef CONFIG_SECCOMP_CACHE_DEBUG +struct seq_file; + +int proc_pid_seccomp_cache(struct seq_file *m, struct pid_namespace *ns, + struct pid *pid, struct task_struct *task); +#endif #endif /* _LINUX_SECCOMP_H */ diff --git a/kernel/seccomp.c b/kernel/seccomp.c index d8cf468dbe1e..76f524e320b1 100644 --- a/kernel/seccomp.c +++ b/kernel/seccomp.c @@ -553,6 +553,9 @@ void seccomp_filter_release(struct task_struct *tsk) { struct seccomp_filter *orig = tsk->seccomp.filter; + /* We are effectively holding the siglock by not having any sighand. */ + WARN_ON(tsk->sighand != NULL); + /* Detach task from its filter tree. */ tsk->seccomp.filter = NULL; __seccomp_filter_release(orig); @@ -2335,3 +2338,59 @@ static int __init seccomp_sysctl_init(void) device_initcall(seccomp_sysctl_init) #endif /* CONFIG_SYSCTL */ + +#ifdef CONFIG_SECCOMP_CACHE_DEBUG +/* Currently CONFIG_SECCOMP_CACHE_DEBUG implies SECCOMP_ARCH_NATIVE */ +static void proc_pid_seccomp_cache_arch(struct seq_file *m, const char *name, + const void *bitmap, size_t bitmap_size) +{ + int nr; + + for (nr = 0; nr < bitmap_size; nr++) { + bool cached = test_bit(nr, bitmap); + char *status = cached ? "ALLOW" : "FILTER"; + + seq_printf(m, "%s %d %s\n", name, nr, status); + } +} + +int proc_pid_seccomp_cache(struct seq_file *m, struct pid_namespace *ns, + struct pid *pid, struct task_struct *task) +{ + struct seccomp_filter *f; + unsigned long flags; + + /* + * We don't want some sandboxed process to know what their seccomp + * filters consist of. + */ + if (!file_ns_capable(m->file, &init_user_ns, CAP_SYS_ADMIN)) + return -EACCES; + + if (!lock_task_sighand(task, &flags)) + return -ESRCH; + + f = READ_ONCE(task->seccomp.filter); + if (!f) { + unlock_task_sighand(task, &flags); + return 0; + } + + /* prevent filter from being freed while we are printing it */ + __get_seccomp_filter(f); + unlock_task_sighand(task, &flags); + + proc_pid_seccomp_cache_arch(m, SECCOMP_ARCH_NATIVE_NAME, + f->cache.allow_native, + SECCOMP_ARCH_NATIVE_NR); + +#ifdef SECCOMP_ARCH_COMPAT + proc_pid_seccomp_cache_arch(m, SECCOMP_ARCH_COMPAT_NAME, + f->cache.allow_compat, + SECCOMP_ARCH_COMPAT_NR); +#endif /* SECCOMP_ARCH_COMPAT */ + + __put_seccomp_filter(f); + return 0; +} +#endif /* CONFIG_SECCOMP_CACHE_DEBUG */