From patchwork Tue Feb 13 20:52:52 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Richard Haines X-Patchwork-Id: 873170 Return-Path: X-Original-To: patchwork-incoming@ozlabs.org Delivered-To: patchwork-incoming@ozlabs.org Authentication-Results: ozlabs.org; spf=none (mailfrom) smtp.mailfrom=vger.kernel.org (client-ip=209.132.180.67; helo=vger.kernel.org; envelope-from=netdev-owner@vger.kernel.org; receiver=) Authentication-Results: ozlabs.org; dkim=pass (1024-bit key; unprotected) header.d=btinternet.com header.i=@btinternet.com header.b="XM4IA/zS"; dkim-atps=neutral Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id 3zgvrT1Fkqz9t1t for ; Wed, 14 Feb 2018 07:53:13 +1100 (AEDT) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S965816AbeBMUxL (ORCPT ); Tue, 13 Feb 2018 15:53:11 -0500 Received: from rgout0102.bt.lon5.cpcloud.co.uk ([65.20.0.122]:3198 "EHLO rgout01.bt.lon5.cpcloud.co.uk" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S965676AbeBMUxJ (ORCPT ); Tue, 13 Feb 2018 15:53:09 -0500 X-OWM-Source-IP: 86.134.52.62 (GB) X-OWM-Env-Sender: richard_c_haines@btinternet.com Received: from localhost.localdomain (86.134.52.62) by rgout01.bt.lon5.cpcloud.co.uk (9.0.019.21-1) (authenticated as richard_c_haines@btinternet.com) id 5A5E18940B85394B; Tue, 13 Feb 2018 20:53:00 +0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=btinternet.com; s=btcpcloud; t=1518555189; bh=eT8UK7F12lm+SdO6ELCKo2Oh0EtPP5iPJxIfPTsAdK4=; h=From:To:Cc:Subject:Date:Message-Id:X-Mailer; b=XM4IA/zSZSxEgkweShXliULOZpeVGRe7yPVeqEF0Fyvws59pm8+kKbmTKS/FKl5Lki7CEWxxYrJJkz+4B2WwGaYR5BWCgrBjeG1/uQf/GC94gzGMVoJWJFzghGl+yNwWfOjsfv4wOS7i3HYtcSdit1bTyYon8JZ6hjaw0mwxhho= From: Richard Haines To: selinux@tycho.nsa.gov, netdev@vger.kernel.org, linux-sctp@vger.kernel.org, linux-security-module@vger.kernel.org Cc: paul@paul-moore.com, vyasevich@gmail.com, nhorman@tuxdriver.com, sds@tycho.nsa.gov, eparis@parisplace.org, marcelo.leitner@gmail.com, casey@schaufler-ca.com, james.l.morris@oracle.com, Richard Haines Subject: [PATCH V6 0/4] Add SELinux SCTP protocol support Date: Tue, 13 Feb 2018 20:52:52 +0000 Message-Id: <20180213205252.4447-1-richard_c_haines@btinternet.com> X-Mailer: git-send-email 2.14.3 Sender: netdev-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org These patches have been built on Fedora 27 with kernel-4.16.0-0.rc1 plus the following userspace patches to enable testing: 1) Updates to libsepol 2.7 to support the sctp portcon statement. The patch is available from: http://arctic.selinuxproject.org/~rhaines/selinux-sctp/ selinux-Add-support-for-the-SCTP-portcon-keyword.patch 2) Updates to the SELinux Test Suite adding SCTP tests. Please read the selinux-testsuite/README.sctp for details. The patch is available from: http://arctic.selinuxproject.org/~rhaines/selinux-sctp/ selinux-testsuite-Add-SCTP-test-support.patch 3) Updates to lksctp-tools that show SELinux info in sctp_darn and sctp_test. It also contains a minor patch for test_1_to_1_connect.c as when CIPSO/CALIPSO configured, NetLabel returns a different error code for illegal addresses in test 5. The patch is available from: http://arctic.selinuxproject.org/~rhaines/selinux-sctp/ lksctp-tools-Add-SELinux-support-to-sctp_test-and-sc.patch All SCTP lksctp-tools/src/func_tests run correctly in enforcing mode. All SCTP regression tests "./sctp-tests run" run correctly in enforcing mode. These tests are obtained from: https://github.com/sctp/sctp-tests The selinux-testsuite patch also adds remote tests (that need some manual configuration). These are useful for testing CIPSO/CALIPSO over a network with a number of categories to produce large ip option fields with various message sizes forcing fragmentation etc.. Changes since RFC Patch: Removed the NetLabel patch (was [RFC PATCH 4/5] netlabel: Add SCTP support) as re-engineered. However this patchset will require the NetLabel patch at [1] to fully run the SCTP selinux-testsuite. V1 Changes: PATCH 1/4 Remove unused parameter from security_sctp_assoc_request(). Reformat and update LSM-sctp.rst documentation. PATCH 2/4 Add variables and RCU locks as requested in [2] to support IP options. PATCH 3/4 Added security_sctp_assoc_request() hook to sctp_sf_do_unexpected_init() and sctp_sf_do_5_2_4_dupcook(). Removed security_sctp_assoc_request() hook from sctp_sf_do_5_1C_ack() as no longer required. PATCH 4/4 Reformat and update SELinux-sctp.rst documentation. Remove bindx and connectx permissions. Rework selinux_socket_connect() and selinux_netlbl_socket_connect() to utilise helpers for code reuse. Add spinlock to selinux_sctp_assoc_request(). Remove unused parameter from security_sctp_assoc_request(). Use address->sa_family == AF_INET in *_bind and *_connect to ensure correct address type. Minor cleanups. V2 Changes: PATCH 4/4 - Remove spin lock from selinux_sctp_assoc_request() PATCH 4/4 - Fix selinux_sctp_sk_clone() kbuild test robot catch [3] V3 Changes: PATCH 2/4 - Account for IP options length in sctp.h sctp_frag_point() by Marcelo V4 Changes: PATCH 1/4 - Move specific SELinux descriptions from LSM-sctp.rst and lsm_hooks.h to SELinux-sctp.rst in PATCH 4/4 PATCH 4/4 - Rename selinux_netlbl_sctp_socket_connect() to selinux_netlbl_socket_connect_locked() and move description comments to selinux_sctp_bind_connect() V5 Change: Rework selinux_netlbl_socket_connect() and selinux_netlbl_socket_connect_locked as requested by Paul. V6 Changes: Rework SCTP patches 2/4 and 3/4 as there have been major SCTP updates since kernel 4.14. [1] https://marc.info/?l=selinux&m=151061619115945&w=2 [2] https://marc.info/?l=selinux&m=150962470215797&w=2 [3] https://marc.info/?l=selinux&m=151198281817779&w=2 Richard Haines (4): security: Add support for SCTP security hooks sctp: Add ip option support sctp: Add LSM hooks selinux: Add SCTP support Documentation/security/LSM-sctp.rst | 175 ++++++++++++++++++++ Documentation/security/SELinux-sctp.rst | 157 ++++++++++++++++++ include/linux/lsm_hooks.h | 36 ++++ include/linux/security.h | 25 +++ include/net/sctp/sctp.h | 4 +- include/net/sctp/structs.h | 12 ++ include/uapi/linux/sctp.h | 1 + net/sctp/chunk.c | 12 +- net/sctp/ipv6.c | 42 ++++- net/sctp/output.c | 5 +- net/sctp/protocol.c | 36 ++++ net/sctp/sm_make_chunk.c | 12 ++ net/sctp/sm_statefuns.c | 18 ++ net/sctp/socket.c | 76 ++++++++- security/security.c | 22 +++ security/selinux/hooks.c | 280 +++++++++++++++++++++++++++++--- security/selinux/include/classmap.h | 2 +- security/selinux/include/netlabel.h | 21 ++- security/selinux/include/objsec.h | 4 + security/selinux/netlabel.c | 133 +++++++++++++-- 20 files changed, 1022 insertions(+), 51 deletions(-) create mode 100644 Documentation/security/LSM-sctp.rst create mode 100644 Documentation/security/SELinux-sctp.rst