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uipc_usrreq_70.c revision 1.1.20.2 
      1 /*	$NetBSD: uipc_usrreq_70.c,v 1.1.20.2 2018/09/22 04:56:28 pgoyette Exp $	*/
      2 
      3 /*-
      4  * Copyright (c) 2016 The NetBSD Foundation, Inc.
      5  * All rights reserved.
      6  *
      7  * This code is derived from software contributed to The NetBSD Foundation
      8  * by Roy Marples.
      9  *
     10  * Redistribution and use in source and binary forms, with or without
     11  * modification, are permitted provided that the following conditions
     12  * are met:
     13  * 1. Redistributions of source code must retain the above copyright
     14  *    notice, this list of conditions and the following disclaimer.
     15  * 2. Redistributions in binary form must reproduce the above copyright
     16  *    notice, this list of conditions and the following disclaimer in the
     17  *    documentation and/or other materials provided with the distribution.
     18  *
     19  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     20  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     21  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     22  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     23  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     24  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     25  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     26  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     27  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     28  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     29  * POSSIBILITY OF SUCH DAMAGE.
     30  */
     31 
     32 #include <sys/cdefs.h>
     33 __KERNEL_RCSID(0, "$NetBSD: uipc_usrreq_70.c,v 1.1.20.2 2018/09/22 04:56:28 pgoyette Exp $");
     34 
     35 #if defined(_KERNEL_OPT)
     36 #include "opt_compat_netbsd.h"
     37 #endif
     38 
     39 #include <sys/param.h>
     40 #include <sys/lwp.h>
     41 #include <sys/socket.h>
     42 #include <sys/socketvar.h>
     43 #include <sys/unpcb.h>
     44 #include <sys/mbuf.h>
     45 #include <sys/kauth.h>
     46 
     47 #include <compat/sys/socket.h>
     48 
     49 struct mbuf *
     50 compat_70_unp_addsockcred(struct lwp *l, struct mbuf *control)
     51 {
     52 	struct sockcred70 *sc;
     53 	struct mbuf *m;
     54 	void *p;
     55 
     56 	m = sbcreatecontrol1(&p, SOCKCRED70SIZE(kauth_cred_ngroups(l->l_cred)),
     57 		SCM_OCREDS, SOL_SOCKET, M_WAITOK);
     58 	if (m == NULL)
     59 		return control;
     60 
     61 	sc = p;
     62 	sc->sc_uid = kauth_cred_getuid(l->l_cred);
     63 	sc->sc_euid = kauth_cred_geteuid(l->l_cred);
     64 	sc->sc_gid = kauth_cred_getgid(l->l_cred);
     65 	sc->sc_egid = kauth_cred_getegid(l->l_cred);
     66 	sc->sc_ngroups = kauth_cred_ngroups(l->l_cred);
     67 
     68 	for (int i = 0; i < sc->sc_ngroups; i++)
     69 		sc->sc_groups[i] = kauth_cred_group(l->l_cred, i);
     70 
     71 	return m_add(control, m);
     72 }
     73