From patchwork Thu Jun 23 19:52:50 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Daniel Jurgens X-Patchwork-Id: 9195883 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id DE63E6075A for ; Thu, 23 Jun 2016 19:54:26 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id CE6F12846E for ; Thu, 23 Jun 2016 19:54:26 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id C388B28470; Thu, 23 Jun 2016 19:54:26 +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, RCVD_IN_DNSWL_HI, UNPARSEABLE_RELAY 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 642EA2846E for ; Thu, 23 Jun 2016 19:54:26 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751719AbcFWTyZ (ORCPT ); Thu, 23 Jun 2016 15:54:25 -0400 Received: from [193.47.165.129] ([193.47.165.129]:41239 "EHLO mellanox.co.il" rhost-flags-FAIL-FAIL-OK-FAIL) by vger.kernel.org with ESMTP id S1751533AbcFWTyZ (ORCPT ); Thu, 23 Jun 2016 15:54:25 -0400 Received: from Internal Mail-Server by MTLPINE1 (envelope-from danielj@mellanox.com) with ESMTPS (AES256-SHA encrypted); 23 Jun 2016 22:53:25 +0300 Received: from x-vnc01.mtx.labs.mlnx (x-vnc01.mtx.labs.mlnx [10.12.150.16]) by labmailer.mlnx (8.13.8/8.13.8) with ESMTP id u5NJr2DD029223; Thu, 23 Jun 2016 22:53:23 +0300 From: Dan Jurgens To: chrisw@sous-sol.org, paul@paul-moore.com, sds@tycho.nsa.gov, eparis@parisplace.org, dledford@redhat.com, sean.hefty@intel.com, hal.rosenstock@gmail.com Cc: selinux@tycho.nsa.gov, linux-security-module@vger.kernel.org, linux-rdma@vger.kernel.org, yevgenyp@mellanox.com, Daniel Jurgens Subject: [PATCH 04/12] selinux: Allocate and free infiniband security hooks Date: Thu, 23 Jun 2016 22:52:50 +0300 Message-Id: <1466711578-64398-5-git-send-email-danielj@mellanox.com> X-Mailer: git-send-email 1.7.1 In-Reply-To: <1466711578-64398-1-git-send-email-danielj@mellanox.com> References: <1466711578-64398-1-git-send-email-danielj@mellanox.com> Sender: owner-linux-security-module@vger.kernel.org Precedence: bulk List-ID: X-Virus-Scanned: ClamAV using ClamSMTP From: Daniel Jurgens Implement and attach hooks to allocate and free Infiniband QP and MAD agent security structures. Signed-off-by: Daniel Jurgens Reviewed-by: Eli Cohen --- include/rdma/ib_mad.h | 1 + include/rdma/ib_verbs.h | 1 + security/selinux/hooks.c | 53 +++++++++++++++++++++++++++++++++++++++ security/selinux/include/objsec.h | 5 ++++ 4 files changed, 60 insertions(+) diff --git a/include/rdma/ib_mad.h b/include/rdma/ib_mad.h index c8a773f..a1ed025 100644 --- a/include/rdma/ib_mad.h +++ b/include/rdma/ib_mad.h @@ -537,6 +537,7 @@ struct ib_mad_agent { u32 flags; u8 port_num; u8 rmpp_version; + void *m_security; }; /** diff --git a/include/rdma/ib_verbs.h b/include/rdma/ib_verbs.h index 3f6780b..e522acb 100644 --- a/include/rdma/ib_verbs.h +++ b/include/rdma/ib_verbs.h @@ -1454,6 +1454,7 @@ struct ib_qp { void *qp_context; u32 qp_num; enum ib_qp_type qp_type; + struct ib_qp_security *qp_sec; }; struct ib_mr { diff --git a/security/selinux/hooks.c b/security/selinux/hooks.c index 6a8841d..4f13ea4 100644 --- a/security/selinux/hooks.c +++ b/security/selinux/hooks.c @@ -17,6 +17,7 @@ * Paul Moore * Copyright (C) 2007 Hitachi Software Engineering Co., Ltd. * Yuichi Nakamura + * Copyright (C) 2016 Mellanox Technologies * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2, @@ -83,6 +84,8 @@ #include #include #include +#include +#include #include "avc.h" #include "objsec.h" @@ -6015,6 +6018,47 @@ static void selinux_unregister_ib_flush_callback(void) mutex_unlock(&ib_flush_mutex); } +static int selinux_ib_qp_alloc_security(struct ib_qp_security *qp_sec) +{ + struct ib_security_struct *sec; + + sec = kzalloc(sizeof(*sec), GFP_ATOMIC); + if (!sec) + return -ENOMEM; + sec->sid = current_sid(); + + qp_sec->q_security = sec; + return 0; +} + +static void selinux_ib_qp_free_security(struct ib_qp_security *qp_sec) +{ + struct ib_security_struct *sec = qp_sec->q_security; + + qp_sec->q_security = NULL; + kfree(sec); +} + +static int selinux_ib_mad_agent_alloc_security(struct ib_mad_agent *mad_agent) +{ + struct ib_security_struct *sec; + + sec = kzalloc(sizeof(*sec), GFP_ATOMIC); + if (!sec) + return -ENOMEM; + sec->sid = current_sid(); + + mad_agent->m_security = sec; + return 0; +} + +static void selinux_ib_mad_agent_free_security(struct ib_mad_agent *mad_agent) +{ + struct ib_security_struct *sec = mad_agent->m_security; + + mad_agent->m_security = NULL; + kfree(sec); +} #endif static struct security_hook_list selinux_hooks[] = { @@ -6198,11 +6242,20 @@ static struct security_hook_list selinux_hooks[] = { LSM_HOOK_INIT(tun_dev_attach_queue, selinux_tun_dev_attach_queue), LSM_HOOK_INIT(tun_dev_attach, selinux_tun_dev_attach), LSM_HOOK_INIT(tun_dev_open, selinux_tun_dev_open), + #ifdef CONFIG_SECURITY_INFINIBAND LSM_HOOK_INIT(register_ib_flush_callback, selinux_register_ib_flush_callback), LSM_HOOK_INIT(unregister_ib_flush_callback, selinux_unregister_ib_flush_callback), + LSM_HOOK_INIT(ib_qp_alloc_security, + selinux_ib_qp_alloc_security), + LSM_HOOK_INIT(ib_qp_free_security, + selinux_ib_qp_free_security), + LSM_HOOK_INIT(ib_mad_agent_alloc_security, + selinux_ib_mad_agent_alloc_security), + LSM_HOOK_INIT(ib_mad_agent_free_security, + selinux_ib_mad_agent_free_security), #endif #ifdef CONFIG_SECURITY_NETWORK_XFRM diff --git a/security/selinux/include/objsec.h b/security/selinux/include/objsec.h index c21e135..8e7db43 100644 --- a/security/selinux/include/objsec.h +++ b/security/selinux/include/objsec.h @@ -10,6 +10,7 @@ * * Copyright (C) 2001,2002 Networks Associates Technology, Inc. * Copyright (C) 2003 Red Hat, Inc., James Morris + * Copyright (C) 2016 Mellanox Technologies * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2, @@ -128,6 +129,10 @@ struct key_security_struct { u32 sid; /* SID of key */ }; +struct ib_security_struct { + u32 sid; /* SID of the queue pair or MAD agent */ +}; + extern unsigned int selinux_checkreqprot; #endif /* _SELINUX_OBJSEC_H_ */