From patchwork Mon Apr 23 13:30:14 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: David Herrmann X-Patchwork-Id: 902933 X-Patchwork-Delegate: davem@davemloft.net Return-Path: X-Original-To: patchwork-incoming-netdev@ozlabs.org Delivered-To: patchwork-incoming-netdev@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; dmarc=pass (p=none dis=none) header.from=gmail.com Authentication-Results: ozlabs.org; dkim=pass (2048-bit key; unprotected) header.d=gmail.com header.i=@gmail.com header.b="PE/Pmu4n"; dkim-atps=neutral Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id 40V6mZ3Wxyz9rxx for ; Mon, 23 Apr 2018 23:31:10 +1000 (AEST) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755329AbeDWNbG (ORCPT ); Mon, 23 Apr 2018 09:31:06 -0400 Received: from mail-wr0-f196.google.com ([209.85.128.196]:33911 "EHLO mail-wr0-f196.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755228AbeDWNa7 (ORCPT ); Mon, 23 Apr 2018 09:30:59 -0400 Received: by mail-wr0-f196.google.com with SMTP id p18-v6so22134016wrm.1; Mon, 23 Apr 2018 06:30:58 -0700 (PDT) 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; bh=ieEdAnuMLZ5lJ/1rGi7E9evpvBsQXDTsyLR6auhnP8M=; b=PE/Pmu4nwuhFa5LjTeJkfopVzkJBD9csQP+I3kXxlSG66WPc0ZZwNYME8tVSK4RUSc LWcDaQza6I4mmShXGqsxwaPDToq8hQXRl2uVt9KndS16JJ4oJX7Ia+oJIuaX1pfF49tL 7C/gRYEhO1uP/y5npA697XFlnpuZkTdDS2DFZH6c/pfisqOfXJ5uThQmF2VFTBheyOAj VoSulwParJXHjNiqS+ZlKlbZSkEqc4gax7TdhsvsR46jG0iiD0nu49Bu2Hr4H3ZqOnAU qX8DVVGZ8QAbEL5Rsg2zfNz/ElThFn6uSqPxTfjrqkEtCFmgKtxf6oH8JcfhoJqHHnw1 Z7NQ== 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; bh=ieEdAnuMLZ5lJ/1rGi7E9evpvBsQXDTsyLR6auhnP8M=; b=K+ls5A+HNfmjKNcX2RwiZvd2BN5nNCjOgycMSu+vONBPYRnyz9+7yncyzuzLUPDsp5 bl7+38P+kCCbyRLgCYQtdAxS+/WtnCblqgzkqjTDqZKoRR1jQGNkggjdSLMojO0rfd8i Zj/+89XWPVYZIwrAhvqDzAhxwsSqeHWBr7njyjyZRg4ZwEnocjflhh0jcrynHN+e4wtG 4ab0OjZJZUWYeWYKN4DPl43IDoJx5uLHVut0wHfn+/Z4mUVWOoYjhxmuFAScdB7JAdy8 LtpmqOLD+jT8b+QoJn6v4cPR2CuXsjWd03MiBr1+al1C4EB3Z1z/ckd6cI8sUViNDW0C jKhA== X-Gm-Message-State: ALQs6tAj2Gt2BRYvt9ci3AANgxY2rWWywb/nvYrBkmmxK+yZi3VtBEPk 9iiDnhHLk2BQSotx3MiT6aSWYw== X-Google-Smtp-Source: AIpwx49/8o0TaHHH0Wr5Hu6t6XvXke6CI7EdeRuEZXLS879plpk3URxF+i35uAneeIp2Uk+pZqjAIg== X-Received: by 2002:adf:9d15:: with SMTP id k21-v6mr15260133wre.213.1524490257408; Mon, 23 Apr 2018 06:30:57 -0700 (PDT) Received: from david-x1.fritz.box (p200300C2A3FE3000ECB787D771B96788.dip0.t-ipconnect.de. [2003:c2:a3fe:3000:ecb7:87d7:71b9:6788]) by smtp.gmail.com with ESMTPSA id 78sm10262548wmm.19.2018.04.23.06.30.56 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Mon, 23 Apr 2018 06:30:56 -0700 (PDT) From: David Herrmann To: linux-kernel@vger.kernel.org Cc: James Morris , Paul Moore , teg@jklm.no, Stephen Smalley , selinux@tycho.nsa.gov, linux-security-module@vger.kernel.org, Eric Paris , serge@hallyn.com, davem@davemloft.net, netdev@vger.kernel.org, David Herrmann Subject: [PATCH 2/3] net/unix: hook unix_socketpair() into LSM Date: Mon, 23 Apr 2018 15:30:14 +0200 Message-Id: <20180423133015.5455-3-dh.herrmann@gmail.com> X-Mailer: git-send-email 2.17.0 In-Reply-To: <20180423133015.5455-1-dh.herrmann@gmail.com> References: <20180423133015.5455-1-dh.herrmann@gmail.com> Sender: netdev-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org Use the newly created LSM-hook for unix_socketpair(). The default hook return-value is 0, so behavior stays the same unless LSMs start using this hook. Signed-off-by: David Herrmann --- net/unix/af_unix.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/net/unix/af_unix.c b/net/unix/af_unix.c index 68bb70a62afe..bc9705ace9b1 100644 --- a/net/unix/af_unix.c +++ b/net/unix/af_unix.c @@ -1371,6 +1371,11 @@ static int unix_stream_connect(struct socket *sock, struct sockaddr *uaddr, static int unix_socketpair(struct socket *socka, struct socket *sockb) { struct sock *ska = socka->sk, *skb = sockb->sk; + int err; + + err = security_unix_stream_socketpair(ska, skb); + if (err) + return err; /* Join our sockets back to back */ sock_hold(ska);