[dragonfly.git] / sys / emulation / linux / linux_uid16.c

/*-
 * Copyright (c) 2001  The FreeBSD Project
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 *
 * $FreeBSD: src/sys/compat/linux/linux_uid16.c,v 1.4.2.1 2001/10/21 03:57:35 marcel Exp $
 * $DragonFly: src/sys/emulation/linux/linux_uid16.c,v 1.12 2006/12/23 00:27:02 swildner Exp $
 */

#include "opt_compat.h"

#include <sys/param.h>
#include <sys/systm.h>
#include <sys/kern_syscall.h>
#include <sys/nlookup.h>
#include <sys/proc.h>
#include <sys/priv.h>
#include <sys/sysproto.h>
#include <sys/thread.h>

#include <arch_linux/linux.h>
#include <arch_linux/linux_proto.h>
#include "linux_util.h"

DUMMY(setfsuid16);
DUMMY(setfsgid16);
DUMMY(getresuid16);
DUMMY(getresgid16);

#define	CAST_NOCHG(x)	((x == 0xFFFF) ? -1 : x)

/*
 * MPALMOSTSAFE
 */
int
sys_linux_chown16(struct linux_chown16_args *args)
{
	struct nlookupdata nd;
	char *path;
	int error;

	error = linux_copyin_path(args->path, &path, LINUX_PATH_EXISTS);
	if (error)
		return (error);
#ifdef DEBUG
	if (ldebug(chown16))
		kprintf(ARGS(chown16, "%s, %d, %d"), path, args->uid,
		    args->gid);
#endif
	get_mplock();
	error = nlookup_init(&nd, path, UIO_SYSSPACE, NLC_FOLLOW);
	if (error == 0) {
		error = kern_chown(&nd, CAST_NOCHG(args->uid),
				    CAST_NOCHG(args->gid));
	}
	nlookup_done(&nd);
	rel_mplock();
	linux_free_path(&path);
	return(error);
}

/*
 * MPALMOSTSAFE
 */
int
sys_linux_lchown16(struct linux_lchown16_args *args)
{
	struct nlookupdata nd;
	char *path;
	int error;

	error = linux_copyin_path(args->path, &path, LINUX_PATH_EXISTS);
	if (error)
		return (error);
#ifdef DEBUG
	if (ldebug(lchown16))
		kprintf(ARGS(lchown16, "%s, %d, %d"), path, args->uid,
		    args->gid);
#endif
	get_mplock();
	error = nlookup_init(&nd, path, UIO_SYSSPACE, 0);
	if (error == 0) {
		error = kern_chown(&nd, CAST_NOCHG(args->uid),
				    CAST_NOCHG(args->gid));
	}
	nlookup_done(&nd);
	rel_mplock();
	linux_free_path(&path);
	return(error);
}

/*
 * MPALMOSTSAFE
 */
int
sys_linux_setgroups16(struct linux_setgroups16_args *args)
{
	struct thread *td = curthread;
	struct proc *p = td->td_proc;
	struct ucred *newcred, *oldcred;
	l_gid16_t linux_gidset[NGROUPS];
	gid_t *bsd_gidset;
	int ngrp, error;

#ifdef DEBUG
	if (ldebug(setgroups16))
		kprintf(ARGS(setgroups16, "%d, *"), args->gidsetsize);
#endif

	ngrp = args->gidsetsize;
	oldcred = td->td_ucred;

	/*
	 * cr_groups[0] holds egid. Setting the whole set from
	 * the supplied set will cause egid to be changed too.
	 * Keep cr_groups[0] unchanged to prevent that.
	 */

	if ((error = priv_check_cred(oldcred, PRIV_CRED_SETGROUPS, 0)) != 0)
		return (error);

	if ((u_int)ngrp >= NGROUPS)
		return (EINVAL);

	get_mplock();
	newcred = crdup(oldcred);
	if (ngrp > 0) {
		error = copyin((caddr_t)args->gidset, linux_gidset,
			       ngrp * sizeof(l_gid16_t));
		if (error) {
			crfree(newcred);
			goto done;
		}

		newcred->cr_ngroups = ngrp + 1;

		bsd_gidset = newcred->cr_groups;
		ngrp--;
		while (ngrp >= 0) {
			bsd_gidset[ngrp + 1] = linux_gidset[ngrp];
			ngrp--;
		}
	} else {
		newcred->cr_ngroups = 1;
	}

	setsugid();
	oldcred = p->p_ucred;	/* deal with threads race */
	p->p_ucred = newcred;
	crfree(oldcred);
	error = 0;
done:
	rel_mplock();
	return (error);
}

/*
 * MPSAFE
 */
int
sys_linux_getgroups16(struct linux_getgroups16_args *args)
{
	struct proc *p = curproc;
	struct ucred *cred;
	l_gid16_t linux_gidset[NGROUPS];
	gid_t *bsd_gidset;
	int bsd_gidsetsz, ngrp, error;

#ifdef DEBUG
	if (ldebug(getgroups16))
		kprintf(ARGS(getgroups16, "%d, *"), args->gidsetsize);
#endif

	cred = p->p_ucred;
	bsd_gidset = cred->cr_groups;
	bsd_gidsetsz = cred->cr_ngroups - 1;

	/*
	 * cr_groups[0] holds egid. Returning the whole set
	 * here will cause a duplicate. Exclude cr_groups[0]
	 * to prevent that.
	 */

	if ((ngrp = args->gidsetsize) == 0) {
		args->sysmsg_result = bsd_gidsetsz;
		return (0);
	}

	if ((u_int)ngrp < (u_int)bsd_gidsetsz)
		return (EINVAL);

	ngrp = 0;
	while (ngrp < bsd_gidsetsz) {
		linux_gidset[ngrp] = bsd_gidset[ngrp + 1];
		ngrp++;
	}

	error = copyout(linux_gidset, (caddr_t)args->gidset,
			ngrp * sizeof(l_gid16_t));
	if (error)
		return (error);

	args->sysmsg_result = ngrp;
	return (0);
}

/*
 * The FreeBSD native getgid(2) and getuid(2) also modify p->p_retval[1]
 * when COMPAT_43 or COMPAT_SUNOS is defined. This globbers registers that
 * are assumed to be preserved. The following lightweight syscalls fixes
 * this. See also linux_getpid(2), linux_getgid(2) and linux_getuid(2) in
 * linux_misc.c
 *
 * linux_getgid16() - MP SAFE
 * linux_getuid16() - MP SAFE
 */

/*
 * MPSAFE
 */
int
sys_linux_getgid16(struct linux_getgid16_args *args)
{
	struct proc *p = curproc;

	args->sysmsg_result = p->p_ucred->cr_rgid;
	return (0);
}

/*
 * MPSAFE
 */
int
sys_linux_getuid16(struct linux_getuid16_args *args)
{
	struct proc *p = curproc;

	args->sysmsg_result = p->p_ucred->cr_ruid;
	return (0);
}

/*
 * MPSAFE
 */
int
sys_linux_getegid16(struct linux_getegid16_args *args)
{
	struct getegid_args bsd;
	int error;

	bsd.sysmsg_result = 0;

	error = sys_getegid(&bsd);
	args->sysmsg_result = bsd.sysmsg_result;
	return(error);
}

/*
 * MPSAFE
 */
int
sys_linux_geteuid16(struct linux_geteuid16_args *args)
{
	struct geteuid_args bsd;
	int error;

	bsd.sysmsg_result = 0;

	error = sys_geteuid(&bsd);
	args->sysmsg_result = bsd.sysmsg_result;
	return(error);
}

/*
 * MPSAFE
 */
int
sys_linux_setgid16(struct linux_setgid16_args *args)
{
	struct setgid_args bsd;
	int error;

	bsd.gid = args->gid;
	bsd.sysmsg_result = 0;

	error = sys_setgid(&bsd);
	args->sysmsg_result = bsd.sysmsg_result;
	return(error);
}

/*
 * MPSAFE
 */
int
sys_linux_setuid16(struct linux_setuid16_args *args)
{
	struct setuid_args bsd;
	int error;

	bsd.uid = args->uid;
	bsd.sysmsg_result = 0;

	error = sys_setuid(&bsd);
	args->sysmsg_result = bsd.sysmsg_result;
	return(error);
}

/*
 * MPSAFE
 */
int
sys_linux_setregid16(struct linux_setregid16_args *args)
{
	struct setregid_args bsd;
	int error;

	bsd.rgid = CAST_NOCHG(args->rgid);
	bsd.egid = CAST_NOCHG(args->egid);
	bsd.sysmsg_result = 0;

	error = sys_setregid(&bsd);
	args->sysmsg_result = bsd.sysmsg_result;
	return(error);
}

/*
 * MPSAFE
 */
int
sys_linux_setreuid16(struct linux_setreuid16_args *args)
{
	struct setreuid_args bsd;
	int error;

	bsd.ruid = CAST_NOCHG(args->ruid);
	bsd.euid = CAST_NOCHG(args->euid);
	bsd.sysmsg_result = 0;

	error = sys_setreuid(&bsd);
	args->sysmsg_result = bsd.sysmsg_result;
	return(error);
}

/*
 * MPSAFE
 */
int
sys_linux_setresgid16(struct linux_setresgid16_args *args)
{
	struct setresgid_args bsd;
	int error;

	bsd.rgid = CAST_NOCHG(args->rgid);
	bsd.egid = CAST_NOCHG(args->egid);
	bsd.sgid = CAST_NOCHG(args->sgid);
	bsd.sysmsg_result = 0;

	error = sys_setresgid(&bsd);
	args->sysmsg_result = bsd.sysmsg_result;
	return(error);
}

/*
 * MPSAFE
 */
int
sys_linux_setresuid16(struct linux_setresuid16_args *args)
{
	struct setresuid_args bsd;
	int error;

	bsd.ruid = CAST_NOCHG(args->ruid);
	bsd.euid = CAST_NOCHG(args->euid);
	bsd.suid = CAST_NOCHG(args->suid);
	bsd.sysmsg_result = 0;

	error = sys_setresuid(&bsd);
	args->sysmsg_result = bsd.sysmsg_result;
	return(error);
}
Commit	Line	Data
984263bc MD	1	/*-
	2	* Copyright (c) 2001 The FreeBSD Project
	3	* All rights reserved.
	4	*
	5	* Redistribution and use in source and binary forms, with or without
	6	* modification, are permitted provided that the following conditions
	7	* are met:
	8	* 1. Redistributions of source code must retain the above copyright
	9	* notice, this list of conditions and the following disclaimer.
	10	* 2. Redistributions in binary form must reproduce the above copyright
	11	* notice, this list of conditions and the following disclaimer in the
	12	* documentation and/or other materials provided with the distribution.
	13	*
	14	* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
	15	* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
	16	* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
	17	* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
	18	* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
	19	* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
	20	* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
	21	* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
	22	* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
	23	* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
	24	* SUCH DAMAGE.
	25	*
	26	* $FreeBSD: src/sys/compat/linux/linux_uid16.c,v 1.4.2.1 2001/10/21 03:57:35 marcel Exp $
26be20a0	27	* $DragonFly: src/sys/emulation/linux/linux_uid16.c,v 1.12 2006/12/23 00:27:02 swildner Exp $
984263bc MD	28	*/
	29
	30	#include "opt_compat.h"
	31
	32	#include <sys/param.h>
	33	#include <sys/systm.h>
136178b3	34	#include <sys/kern_syscall.h>
fad57d0e	35	#include <sys/nlookup.h>
984263bc	36	#include <sys/proc.h>
895c1f85	37	#include <sys/priv.h>
984263bc	38	#include <sys/sysproto.h>
136178b3	39	#include <sys/thread.h>
984263bc	40
932f49b9 MD	41	#include <arch_linux/linux.h>
932f49b9 MD	42	#include <arch_linux/linux_proto.h>
1f2de5d4	43	#include "linux_util.h"
984263bc MD	44
	45	DUMMY(setfsuid16);
	46	DUMMY(setfsgid16);
	47	DUMMY(getresuid16);
	48	DUMMY(getresgid16);
	49
136178b3	50	#define CAST_NOCHG(x) ((x == 0xFFFF) ? -1 : x)
984263bc	51
3919ced0 MD	52	/*
	53	* MPALMOSTSAFE
	54	*/
984263bc	55	int
753fd850	56	sys_linux_chown16(struct linux_chown16_args *args)
984263bc	57	{
fad57d0e	58	struct nlookupdata nd;
136178b3	59	char *path;
90b9818c	60	int error;
984263bc	61
136178b3 DRJ	62	error = linux_copyin_path(args->path, &path, LINUX_PATH_EXISTS);
	63	if (error)
	64	return (error);
984263bc MD	65	#ifdef DEBUG
984263bc MD	66	if (ldebug(chown16))
26be20a0	67	kprintf(ARGS(chown16, "%s, %d, %d"), path, args->uid,
984263bc MD	68	args->gid);
984263bc MD	69	#endif
3919ced0	70	get_mplock();
fad57d0e MD	71	error = nlookup_init(&nd, path, UIO_SYSSPACE, NLC_FOLLOW);
	72	if (error == 0) {
	73	error = kern_chown(&nd, CAST_NOCHG(args->uid),
	74	CAST_NOCHG(args->gid));
	75	}
	76	nlookup_done(&nd);
3919ced0	77	rel_mplock();
136178b3	78	linux_free_path(&path);
90b9818c	79	return(error);
984263bc MD	80	}
984263bc MD	81
3919ced0 MD	82	/*
	83	* MPALMOSTSAFE
	84	*/
984263bc	85	int
753fd850	86	sys_linux_lchown16(struct linux_lchown16_args *args)
984263bc	87	{
fad57d0e	88	struct nlookupdata nd;
136178b3	89	char *path;
90b9818c	90	int error;
984263bc	91
136178b3 DRJ	92	error = linux_copyin_path(args->path, &path, LINUX_PATH_EXISTS);
	93	if (error)
	94	return (error);
984263bc MD	95	#ifdef DEBUG
984263bc MD	96	if (ldebug(lchown16))
26be20a0	97	kprintf(ARGS(lchown16, "%s, %d, %d"), path, args->uid,
984263bc MD	98	args->gid);
984263bc MD	99	#endif
3919ced0	100	get_mplock();
fad57d0e MD	101	error = nlookup_init(&nd, path, UIO_SYSSPACE, 0);
	102	if (error == 0) {
	103	error = kern_chown(&nd, CAST_NOCHG(args->uid),
	104	CAST_NOCHG(args->gid));
	105	}
	106	nlookup_done(&nd);
3919ced0	107	rel_mplock();
136178b3	108	linux_free_path(&path);
90b9818c	109	return(error);
984263bc MD	110	}
984263bc MD	111
3919ced0 MD	112	/*
	113	* MPALMOSTSAFE
	114	*/
984263bc	115	int
753fd850	116	sys_linux_setgroups16(struct linux_setgroups16_args *args)
984263bc	117	{
9910d07b MD	118	struct thread *td = curthread;
9910d07b MD	119	struct proc *p = td->td_proc;
984263bc MD	120	struct ucred newcred, oldcred;
	121	l_gid16_t linux_gidset[NGROUPS];
	122	gid_t *bsd_gidset;
	123	int ngrp, error;
	124
	125	#ifdef DEBUG
	126	if (ldebug(setgroups16))
26be20a0	127	kprintf(ARGS(setgroups16, "%d, *"), args->gidsetsize);
984263bc MD	128	#endif
	129
	130	ngrp = args->gidsetsize;
9910d07b	131	oldcred = td->td_ucred;
984263bc MD	132
	133	/*
	134	* cr_groups[0] holds egid. Setting the whole set from
	135	* the supplied set will cause egid to be changed too.
	136	* Keep cr_groups[0] unchanged to prevent that.
	137	*/
	138
741fa32c	139	if ((error = priv_check_cred(oldcred, PRIV_CRED_SETGROUPS, 0)) != 0)
984263bc MD	140	return (error);
984263bc MD	141
3919ced0	142	if ((u_int)ngrp >= NGROUPS)
984263bc MD	143	return (EINVAL);
984263bc MD	144
3919ced0	145	get_mplock();
984263bc MD	146	newcred = crdup(oldcred);
	147	if (ngrp > 0) {
	148	error = copyin((caddr_t)args->gidset, linux_gidset,
da311c9d MD	149	ngrp * sizeof(l_gid16_t));
	150	if (error) {
	151	crfree(newcred);
3919ced0	152	goto done;
da311c9d	153	}
984263bc MD	154
	155	newcred->cr_ngroups = ngrp + 1;
	156
	157	bsd_gidset = newcred->cr_groups;
	158	ngrp--;
	159	while (ngrp >= 0) {
	160	bsd_gidset[ngrp + 1] = linux_gidset[ngrp];
	161	ngrp--;
	162	}
da311c9d	163	} else {
984263bc	164	newcred->cr_ngroups = 1;
da311c9d	165	}
984263bc	166
41c20dac	167	setsugid();
9910d07b	168	oldcred = p->p_ucred; /* deal with threads race */
984263bc MD	169	p->p_ucred = newcred;
984263bc MD	170	crfree(oldcred);
3919ced0 MD	171	error = 0;
	172	done:
	173	rel_mplock();
	174	return (error);
984263bc MD	175	}
984263bc MD	176
3919ced0 MD	177	/*
	178	* MPSAFE
	179	*/
984263bc	180	int
753fd850	181	sys_linux_getgroups16(struct linux_getgroups16_args *args)
984263bc	182	{
41c20dac	183	struct proc *p = curproc;
984263bc MD	184	struct ucred *cred;
	185	l_gid16_t linux_gidset[NGROUPS];
	186	gid_t *bsd_gidset;
	187	int bsd_gidsetsz, ngrp, error;
	188
	189	#ifdef DEBUG
	190	if (ldebug(getgroups16))
26be20a0	191	kprintf(ARGS(getgroups16, "%d, *"), args->gidsetsize);
984263bc MD	192	#endif
	193
	194	cred = p->p_ucred;
	195	bsd_gidset = cred->cr_groups;
	196	bsd_gidsetsz = cred->cr_ngroups - 1;
	197
	198	/*
	199	* cr_groups[0] holds egid. Returning the whole set
	200	* here will cause a duplicate. Exclude cr_groups[0]
	201	* to prevent that.
	202	*/
	203
	204	if ((ngrp = args->gidsetsize) == 0) {
c7114eea	205	args->sysmsg_result = bsd_gidsetsz;
984263bc MD	206	return (0);
	207	}
	208
3919ced0	209	if ((u_int)ngrp < (u_int)bsd_gidsetsz)
984263bc MD	210	return (EINVAL);
	211
	212	ngrp = 0;
	213	while (ngrp < bsd_gidsetsz) {
	214	linux_gidset[ngrp] = bsd_gidset[ngrp + 1];
	215	ngrp++;
	216	}
	217
	218	error = copyout(linux_gidset, (caddr_t)args->gidset,
3919ced0	219	ngrp * sizeof(l_gid16_t));
984263bc MD	220	if (error)
	221	return (error);
	222
c7114eea	223	args->sysmsg_result = ngrp;
984263bc MD	224	return (0);
	225	}
	226
	227	/*
	228	* The FreeBSD native getgid(2) and getuid(2) also modify p->p_retval[1]
	229	* when COMPAT_43 or COMPAT_SUNOS is defined. This globbers registers that
	230	* are assumed to be preserved. The following lightweight syscalls fixes
	231	* this. See also linux_getpid(2), linux_getgid(2) and linux_getuid(2) in
	232	* linux_misc.c
	233	*
	234	* linux_getgid16() - MP SAFE
	235	* linux_getuid16() - MP SAFE
	236	*/
	237
3919ced0 MD	238	/*
	239	* MPSAFE
	240	*/
984263bc	241	int
753fd850	242	sys_linux_getgid16(struct linux_getgid16_args *args)
984263bc	243	{
41c20dac	244	struct proc *p = curproc;
984263bc	245
c7114eea	246	args->sysmsg_result = p->p_ucred->cr_rgid;
984263bc MD	247	return (0);
	248	}
	249
3919ced0 MD	250	/*
	251	* MPSAFE
	252	*/
984263bc	253	int
753fd850	254	sys_linux_getuid16(struct linux_getuid16_args *args)
984263bc	255	{
41c20dac	256	struct proc *p = curproc;
984263bc	257
c7114eea	258	args->sysmsg_result = p->p_ucred->cr_ruid;
984263bc MD	259	return (0);
	260	}
	261
3919ced0 MD	262	/*
	263	* MPSAFE
	264	*/
984263bc	265	int
753fd850	266	sys_linux_getegid16(struct linux_getegid16_args *args)
984263bc MD	267	{
984263bc MD	268	struct getegid_args bsd;
90b9818c MD	269	int error;
90b9818c MD	270
c7114eea	271	bsd.sysmsg_result = 0;
984263bc	272
753fd850	273	error = sys_getegid(&bsd);
c7114eea	274	args->sysmsg_result = bsd.sysmsg_result;
90b9818c	275	return(error);
984263bc MD	276	}
984263bc MD	277
3919ced0 MD	278	/*
	279	* MPSAFE
	280	*/
984263bc	281	int
753fd850	282	sys_linux_geteuid16(struct linux_geteuid16_args *args)
984263bc MD	283	{
984263bc MD	284	struct geteuid_args bsd;
90b9818c MD	285	int error;
90b9818c MD	286
c7114eea	287	bsd.sysmsg_result = 0;
984263bc	288
753fd850	289	error = sys_geteuid(&bsd);
c7114eea	290	args->sysmsg_result = bsd.sysmsg_result;
90b9818c	291	return(error);
984263bc MD	292	}
984263bc MD	293
3919ced0 MD	294	/*
	295	* MPSAFE
	296	*/
984263bc	297	int
753fd850	298	sys_linux_setgid16(struct linux_setgid16_args *args)
984263bc MD	299	{
984263bc MD	300	struct setgid_args bsd;
90b9818c	301	int error;
984263bc MD	302
984263bc MD	303	bsd.gid = args->gid;
c7114eea	304	bsd.sysmsg_result = 0;
90b9818c	305
753fd850	306	error = sys_setgid(&bsd);
c7114eea	307	args->sysmsg_result = bsd.sysmsg_result;
90b9818c	308	return(error);
984263bc MD	309	}
984263bc MD	310
3919ced0 MD	311	/*
	312	* MPSAFE
	313	*/
984263bc	314	int
753fd850	315	sys_linux_setuid16(struct linux_setuid16_args *args)
984263bc MD	316	{
984263bc MD	317	struct setuid_args bsd;
90b9818c	318	int error;
984263bc MD	319
984263bc MD	320	bsd.uid = args->uid;
c7114eea	321	bsd.sysmsg_result = 0;
90b9818c	322
753fd850	323	error = sys_setuid(&bsd);
c7114eea	324	args->sysmsg_result = bsd.sysmsg_result;
90b9818c	325	return(error);
984263bc MD	326	}
984263bc MD	327
3919ced0 MD	328	/*
	329	* MPSAFE
	330	*/
984263bc	331	int
753fd850	332	sys_linux_setregid16(struct linux_setregid16_args *args)
984263bc MD	333	{
984263bc MD	334	struct setregid_args bsd;
90b9818c	335	int error;
984263bc MD	336
	337	bsd.rgid = CAST_NOCHG(args->rgid);
	338	bsd.egid = CAST_NOCHG(args->egid);
c7114eea	339	bsd.sysmsg_result = 0;
90b9818c	340
753fd850	341	error = sys_setregid(&bsd);
c7114eea	342	args->sysmsg_result = bsd.sysmsg_result;
90b9818c	343	return(error);
984263bc MD	344	}
984263bc MD	345
3919ced0 MD	346	/*
	347	* MPSAFE
	348	*/
984263bc	349	int
753fd850	350	sys_linux_setreuid16(struct linux_setreuid16_args *args)
984263bc MD	351	{
984263bc MD	352	struct setreuid_args bsd;
90b9818c	353	int error;
984263bc MD	354
	355	bsd.ruid = CAST_NOCHG(args->ruid);
	356	bsd.euid = CAST_NOCHG(args->euid);
c7114eea	357	bsd.sysmsg_result = 0;
90b9818c	358
753fd850	359	error = sys_setreuid(&bsd);
c7114eea	360	args->sysmsg_result = bsd.sysmsg_result;
90b9818c	361	return(error);
984263bc MD	362	}
984263bc MD	363
3919ced0 MD	364	/*
	365	* MPSAFE
	366	*/
984263bc	367	int
753fd850	368	sys_linux_setresgid16(struct linux_setresgid16_args *args)
984263bc MD	369	{
984263bc MD	370	struct setresgid_args bsd;
90b9818c	371	int error;
984263bc MD	372
	373	bsd.rgid = CAST_NOCHG(args->rgid);
	374	bsd.egid = CAST_NOCHG(args->egid);
	375	bsd.sgid = CAST_NOCHG(args->sgid);
c7114eea	376	bsd.sysmsg_result = 0;
90b9818c	377
753fd850	378	error = sys_setresgid(&bsd);
c7114eea	379	args->sysmsg_result = bsd.sysmsg_result;
90b9818c	380	return(error);
984263bc MD	381	}
984263bc MD	382
3919ced0 MD	383	/*
	384	* MPSAFE
	385	*/
984263bc	386	int
753fd850	387	sys_linux_setresuid16(struct linux_setresuid16_args *args)
984263bc MD	388	{
984263bc MD	389	struct setresuid_args bsd;
90b9818c	390	int error;
984263bc MD	391
	392	bsd.ruid = CAST_NOCHG(args->ruid);
	393	bsd.euid = CAST_NOCHG(args->euid);
	394	bsd.suid = CAST_NOCHG(args->suid);
c7114eea	395	bsd.sysmsg_result = 0;
90b9818c	396
753fd850	397	error = sys_setresuid(&bsd);
c7114eea	398	args->sysmsg_result = bsd.sysmsg_result;
90b9818c	399	return(error);
984263bc	400	}
90b9818c	401