From patchwork Sun Jun 2 16:50:39 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Casey Schaufler X-Patchwork-Id: 10971943 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id E849C14DB for ; Sun, 2 Jun 2019 16:53:27 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id D8BA61FF40 for ; Sun, 2 Jun 2019 16:53:27 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id CC4A528A08; Sun, 2 Jun 2019 16:53:27 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-6.9 required=2.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,RCVD_IN_DNSWL_HI autolearn=unavailable version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 86692286E4 for ; Sun, 2 Jun 2019 16:53:27 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727035AbfFBQx1 (ORCPT ); Sun, 2 Jun 2019 12:53:27 -0400 Received: from sonic310-27.consmr.mail.gq1.yahoo.com ([98.137.69.153]:44840 "EHLO sonic310-27.consmr.mail.gq1.yahoo.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727003AbfFBQx0 (ORCPT ); Sun, 2 Jun 2019 12:53:26 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=yahoo.com; s=s2048; t=1559494405; bh=K172cq+NB5Z0YjmWFKPzhzudN0HRFKrT7HKe6u3/BmU=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From:Subject; b=LVo5p4TN1N2ORA84bDvRKV4uU7w90WE8lBTggB2/TnHkVuOt3PJKWGR19QMa6JPzTYv9uvQXA0blNCjy4EYp+fRCf20+JVUs4Hgx+UJAfP4R/2wKyuCpZICV3I2DqVpL1hFumeWctc+7gdI7mF+RiOnhrlMPLKa7De5QepEnSPnW2bWle/YI0H+S7aEIxNCgkoN48AKwxzm7hH3Eg4KNLHvBRE1pBbhEdYMqGppvACiZW4QRT8fvnDKCEntUZ0eWbuJJ0wgbvogcoRRSXIO6rvaSh5OTEscgPM5c9/2OlffsE8C0w2JrQ5KE3Y/CvjSOwmRxS7k1WQadPWk24pQaqA== X-YMail-OSG: y9JupqQVM1lcoiwfRXcZhtOXqOX0lYs_su_lc8vG9XsbUo.UDGLUo8ow0yWE4PI m65dwKAsO2kGLXZKY2Q4qXBG629zcljCjY26cSpOKRFU0IOx.ePBYlZBmdzE7cUTXvCN8VbY23xH GfxwKYJPqN.s5exHbwQqcRUK8gfl8wEpYMXHPwMCoETSv8yumq83b0whhoQRDFdkYnTdYykIZkIC GJ_m02QuehoMN5CBxcNVs2z8MrGDyJQ.e7LFIhcqwIvgvyTOkuFPfCMZztq7bNeYNG.pR3qfWvet fcl5.Sf0v_U7foBPh5SjwufqRPs6VI4aDhZlibxmLbTmgWlXxf2wis3EWVlZqoALvLv1bpSdSmWF QgwUE6dCAoaRhKPwIpDA1k2PfoE1A27goblVB04PHlqFoiIfcbXgTqpaVLvHA832Uw8QSk1vfZ.q NOjLsUg3lZmFuiM4BBUpY_hJ.iSBPAa3YebnWs8U44U0K26nqOmGFnTWdsQF7mBbWgDf5PC_5dKi .OPRqgTexgGO3l2fTbAaEpvsYpfsh18DbKt0fr7dkKiDGdru8DjlbI1Fp7w8qAj7efIPSytc.aLj OJ2J.n2SBex6CoTxIUr0HGMVeSWTJf9E_ugeRJ75uMpllqWHuRDT2rfBZtEwBL9ZIH89IjXCsWVf sxc9h6ofuM3K_psm6ZDER5LhmRBy1ji2aN6q8iwDtXkutF3OhmoksNniXY5pDvzdBqvVEQ7L0oIR qMN90oRlc2rCV.xhutppc3qPN_3n9jqsZNuQAtQ_gPpnktTUJa6IsLS2gTuaKUbT0hYmyA0Hx3E9 Ksb_B0WnNVzmvmV3eVRwEyKziHsZsrBsgM_XUjTanqTlDi7myOfKECnhAgi8G9HJlnD3e.W0JsW6 sX1jFF2ZfBigKaHGJFaG95T7Jo5Zua5sVPqwkQCFJBmqOlbvIe0iRbkUfgHjgZv8raG8g5VIacVU nmTcBAWlNUU00cvOGQvcljSvUaHaoOT4eBwPe5URpxeo98St2D8V63LJPA7udNANBsg11_VwPrcz 0n_RRMFYtT9WN4CgB889FkWovWLgCNBSAaSiRuarTTewudgicRcVvj9wrCHRJnZ5zOm39hJpsP4i zNIoHuHtWj1KNge6iP_7A2WBLLldEdBF1WBWrKOzZMBbHINwdPUsw.KBRFgcV8zsqAavGLPrZkxU U8wwWyzU.0xL.0l8flY5dsx8ERkf3HXfQgXEmji_misf7GzQY7FGy7bFnIqNwgn5VQ7kY4TXPYFu qVEtygVslk2dNWzakj1d6bDpbp9vOYq6B5pNx0bWBP8fvyV_jBMYA6g-- Received: from sonic.gate.mail.ne1.yahoo.com by sonic310.consmr.mail.gq1.yahoo.com with HTTP; Sun, 2 Jun 2019 16:53:25 +0000 Received: from c-73-223-4-185.hsd1.ca.comcast.net (EHLO localhost.net) ([73.223.4.185]) by smtp414.mail.gq1.yahoo.com (Oath Hermes SMTP Server) with ESMTPA ID 037f0ce5b74e0a8af50a9035f5845b74; Sun, 02 Jun 2019 16:53:23 +0000 (UTC) From: Casey Schaufler To: casey.schaufler@intel.com, jmorris@namei.org, linux-security-module@vger.kernel.org, selinux@vger.kernel.org Cc: casey@schaufler-ca.com, keescook@chromium.org, john.johansen@canonical.com, penguin-kernel@i-love.sakura.ne.jp, paul@paul-moore.com, sds@tycho.nsa.gov Subject: [PATCH 36/58] LSM: Create a data structure for a security context Date: Sun, 2 Jun 2019 09:50:39 -0700 Message-Id: <20190602165101.25079-37-casey@schaufler-ca.com> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20190602165101.25079-1-casey@schaufler-ca.com> References: <20190602165101.25079-1-casey@schaufler-ca.com> MIME-Version: 1.0 Sender: owner-linux-security-module@vger.kernel.org Precedence: bulk List-ID: X-Virus-Scanned: ClamAV using ClamSMTP A "security context" is the text representation of the information used by LSMs. This provides a structure so that the use can be made consistant. Signed-off-by: Casey Schaufler --- include/linux/security.h | 11 +++++++++++ 1 file changed, 11 insertions(+) diff --git a/include/linux/security.h b/include/linux/security.h index dde36e850cf0..e12b169deed6 100644 --- a/include/linux/security.h +++ b/include/linux/security.h @@ -116,6 +116,17 @@ static inline bool lsm_export_equal(struct lsm_export *l, struct lsm_export *m) return true; } +/* Text representation of LSM specific security information - a "context" */ +struct lsm_context { + char *context; + u32 len; +}; + +static inline void lsm_context_init(struct lsm_context *cp) +{ + memset(cp, 0, sizeof(*cp)); +} + /* These functions are in security/commoncap.c */ extern int cap_capable(const struct cred *cred, struct user_namespace *ns, int cap, unsigned int opts);