From owner-svn-src-all@freebsd.org  Sat Aug  1 07:51:49 2015
Return-Path: <owner-svn-src-all@freebsd.org>
Delivered-To: svn-src-all@mailman.ysv.freebsd.org
Received: from mx1.freebsd.org (mx1.freebsd.org
 [IPv6:2001:1900:2254:206a::19:1])
 by mailman.ysv.freebsd.org (Postfix) with ESMTP id 35DAC9B028A;
 Sat,  1 Aug 2015 07:51:49 +0000 (UTC) (envelope-from ed@FreeBSD.org)
Received: from repo.freebsd.org (repo.freebsd.org
 [IPv6:2001:1900:2254:2068::e6a:0])
 (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits))
 (Client did not present a certificate)
 by mx1.freebsd.org (Postfix) with ESMTPS id 23375198A;
 Sat,  1 Aug 2015 07:51:49 +0000 (UTC) (envelope-from ed@FreeBSD.org)
Received: from repo.freebsd.org ([127.0.1.70])
 by repo.freebsd.org (8.14.9/8.14.9) with ESMTP id t717pnhA019786;
 Sat, 1 Aug 2015 07:51:49 GMT (envelope-from ed@FreeBSD.org)
Received: (from ed@localhost)
 by repo.freebsd.org (8.14.9/8.14.9/Submit) id t717pmVi019785;
 Sat, 1 Aug 2015 07:51:48 GMT (envelope-from ed@FreeBSD.org)
Message-Id: <201508010751.t717pmVi019785@repo.freebsd.org>
X-Authentication-Warning: repo.freebsd.org: ed set sender to ed@FreeBSD.org
 using -f
From: Ed Schouten <ed@FreeBSD.org>
Date: Sat, 1 Aug 2015 07:51:48 +0000 (UTC)
To: src-committers@freebsd.org, svn-src-all@freebsd.org,
 svn-src-head@freebsd.org
Subject: svn commit: r286147 - head/sys/compat/cloudabi
X-SVN-Group: head
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
X-BeenThere: svn-src-all@freebsd.org
X-Mailman-Version: 2.1.20
Precedence: list
List-Id: "SVN commit messages for the entire src tree \(except for &quot;
 user&quot; and &quot; projects&quot; \)" <svn-src-all.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/options/svn-src-all>,
 <mailto:svn-src-all-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/svn-src-all/>
List-Post: <mailto:svn-src-all@freebsd.org>
List-Help: <mailto:svn-src-all-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/svn-src-all>,
 <mailto:svn-src-all-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Sat, 01 Aug 2015 07:51:49 -0000

Author: ed
Date: Sat Aug  1 07:51:48 2015
New Revision: 286147
URL: https://svnweb.freebsd.org/changeset/base/286147

Log:
  Allow CloudABI processes to create shared memory objects.
  
  Summary:
  Use the newly created `kern_shm_open()` function to create objects with
  just the rights that are actually needed.
  
  Reviewers: jhb, kib
  
  Subscribers: imp
  
  Differential Revision: https://reviews.freebsd.org/D3260

Modified:
  head/sys/compat/cloudabi/cloudabi_fd.c

Modified: head/sys/compat/cloudabi/cloudabi_fd.c
==============================================================================
--- head/sys/compat/cloudabi/cloudabi_fd.c	Sat Aug  1 07:21:14 2015	(r286146)
+++ head/sys/compat/cloudabi/cloudabi_fd.c	Sat Aug  1 07:51:48 2015	(r286147)
@@ -30,6 +30,7 @@ __FBSDID("$FreeBSD$");
 #include <sys/capsicum.h>
 #include <sys/filedesc.h>
 #include <sys/proc.h>
+#include <sys/mman.h>
 #include <sys/socketvar.h>
 #include <sys/syscallsubr.h>
 #include <sys/sysproto.h>
@@ -97,11 +98,16 @@ int
 cloudabi_sys_fd_create1(struct thread *td,
     struct cloudabi_sys_fd_create1_args *uap)
 {
+	struct filecaps fcaps = {};
 	struct socket_args socket_args = {
 		.domain = AF_UNIX,
 	};
 
 	switch (uap->type) {
+	case CLOUDABI_FILETYPE_SHARED_MEMORY:
+		cap_rights_init(&fcaps.fc_rights, CAP_FSTAT, CAP_FTRUNCATE,
+		    CAP_MMAP_RWX);
+		return (kern_shm_open(td, SHM_ANON, O_RDWR, 0, &fcaps));
 	case CLOUDABI_FILETYPE_SOCKET_DGRAM:
 		socket_args.type = SOCK_DGRAM;
 		return (sys_socket(td, &socket_args));