5596676e6c
Note ALL MODULES MUST BE RECOMPILED make the kernel aware that there are smaller units of scheduling than the process. (but only allow one thread per process at this time). This is functionally equivalent to teh previousl -current except that there is a thread associated with each process. Sorry john! (your next MFC will be a doosie!) Reviewed by: peter@freebsd.org, dillon@freebsd.org X-MFC after: ha ha ha ha
288 lines
6.4 KiB
C
288 lines
6.4 KiB
C
/*-
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* Copyright (c) 2001 The FreeBSD Project
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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#include "opt_compat.h"
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/proc.h>
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#include <sys/sysproto.h>
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#include <machine/../linux/linux.h>
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#include <machine/../linux/linux_proto.h>
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#include <compat/linux/linux_util.h>
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DUMMY(setfsuid16);
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DUMMY(setfsgid16);
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DUMMY(getresuid16);
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DUMMY(getresgid16);
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int
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linux_chown16(struct thread *td, struct linux_chown16_args *args)
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{
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struct chown_args bsd;
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caddr_t sg;
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sg = stackgap_init();
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CHECKALTEXIST(td, &sg, args->path);
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#ifdef DEBUG
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if (ldebug(chown16))
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printf(ARGS(chown16, "%s, %d, %d"), args->path, args->uid,
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args->gid);
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#endif
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bsd.path = args->path;
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bsd.uid = args->uid;
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bsd.gid = args->gid;
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return (chown(td, &bsd));
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}
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int
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linux_lchown16(struct thread *td, struct linux_lchown16_args *args)
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{
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struct lchown_args bsd;
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caddr_t sg;
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sg = stackgap_init();
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CHECKALTEXIST(td, &sg, args->path);
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#ifdef DEBUG
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if (ldebug(lchown16))
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printf(ARGS(lchown16, "%s, %d, %d"), args->path, args->uid,
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args->gid);
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#endif
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bsd.path = args->path;
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bsd.uid = args->uid;
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bsd.gid = args->gid;
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return (lchown(td, &bsd));
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}
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int
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linux_setgroups16(struct thread *td, struct linux_setgroups16_args *args)
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{
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struct ucred *newcred, *oldcred;
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l_gid16_t linux_gidset[NGROUPS];
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gid_t *bsd_gidset;
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int ngrp, error;
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#ifdef DEBUG
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if (ldebug(setgroups16))
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printf(ARGS(setgroups16, "%d, *"), args->gidsetsize);
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#endif
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ngrp = args->gidsetsize;
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oldcred = td->td_proc->p_ucred;
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/*
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* cr_groups[0] holds egid. Setting the whole set from
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* the supplied set will cause egid to be changed too.
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* Keep cr_groups[0] unchanged to prevent that.
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*/
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if ((error = suser_xxx(oldcred, NULL, PRISON_ROOT)) != 0)
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return (error);
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if (ngrp >= NGROUPS)
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return (EINVAL);
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newcred = crdup(oldcred);
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if (ngrp > 0) {
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error = copyin((caddr_t)args->gidset, linux_gidset,
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ngrp * sizeof(l_gid16_t));
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if (error)
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return (error);
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newcred->cr_ngroups = ngrp + 1;
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bsd_gidset = newcred->cr_groups;
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ngrp--;
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while (ngrp >= 0) {
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bsd_gidset[ngrp + 1] = linux_gidset[ngrp];
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ngrp--;
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}
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}
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else
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newcred->cr_ngroups = 1;
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setsugid(td->td_proc);
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td->td_proc->p_ucred = newcred;
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crfree(oldcred);
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return (0);
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}
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int
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linux_getgroups16(struct thread *td, struct linux_getgroups16_args *args)
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{
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struct ucred *cred;
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l_gid16_t linux_gidset[NGROUPS];
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gid_t *bsd_gidset;
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int bsd_gidsetsz, ngrp, error;
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#ifdef DEBUG
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if (ldebug(getgroups16))
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printf(ARGS(getgroups16, "%d, *"), args->gidsetsize);
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#endif
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cred = td->td_proc->p_ucred;
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bsd_gidset = cred->cr_groups;
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bsd_gidsetsz = cred->cr_ngroups - 1;
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/*
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* cr_groups[0] holds egid. Returning the whole set
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* here will cause a duplicate. Exclude cr_groups[0]
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* to prevent that.
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*/
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if ((ngrp = args->gidsetsize) == 0) {
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td->td_retval[0] = bsd_gidsetsz;
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return (0);
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}
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if (ngrp < bsd_gidsetsz)
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return (EINVAL);
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ngrp = 0;
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while (ngrp < bsd_gidsetsz) {
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linux_gidset[ngrp] = bsd_gidset[ngrp + 1];
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ngrp++;
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}
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error = copyout(linux_gidset, (caddr_t)args->gidset,
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ngrp * sizeof(l_gid16_t));
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if (error)
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return (error);
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td->td_retval[0] = ngrp;
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return (0);
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}
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/*
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* The FreeBSD native getgid(2) and getuid(2) also modify td->td_retval[1]
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* when COMPAT_43 or COMPAT_SUNOS is defined. This globbers registers that
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* are assumed to be preserved. The following lightweight syscalls fixes
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* this. See also linux_getpid(2), linux_getgid(2) and linux_getuid(2) in
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* linux_misc.c
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*
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* linux_getgid16() - MP SAFE
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* linux_getuid16() - MP SAFE
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*/
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int
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linux_getgid16(struct thread *td, struct linux_getgid16_args *args)
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{
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td->td_retval[0] = td->td_proc->p_ucred->cr_rgid;
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return (0);
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}
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int
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linux_getuid16(struct thread *td, struct linux_getuid16_args *args)
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{
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td->td_retval[0] = td->td_proc->p_ucred->cr_ruid;
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return (0);
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}
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int
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linux_getegid16(struct thread *td, struct linux_getegid16_args *args)
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{
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struct getegid_args bsd;
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return (getegid(td, &bsd));
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}
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int
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linux_geteuid16(struct thread *td, struct linux_geteuid16_args *args)
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{
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struct geteuid_args bsd;
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return (geteuid(td, &bsd));
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}
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int
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linux_setgid16(struct thread *td, struct linux_setgid16_args *args)
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{
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struct setgid_args bsd;
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bsd.gid = args->gid;
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return (setgid(td, &bsd));
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}
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int
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linux_setuid16(struct thread *td, struct linux_setuid16_args *args)
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{
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struct setuid_args bsd;
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bsd.uid = args->uid;
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return (setuid(td, &bsd));
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}
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int
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linux_setregid16(struct thread *td, struct linux_setregid16_args *args)
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{
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struct setregid_args bsd;
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bsd.rgid = args->rgid;
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bsd.egid = args->egid;
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return (setregid(td, &bsd));
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}
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int
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linux_setreuid16(struct thread *td, struct linux_setreuid16_args *args)
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{
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struct setreuid_args bsd;
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bsd.ruid = args->ruid;
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bsd.euid = args->euid;
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return (setreuid(td, &bsd));
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}
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int
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linux_setresgid16(struct thread *td, struct linux_setresgid16_args *args)
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{
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struct setresgid_args bsd;
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bsd.rgid = args->rgid;
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bsd.egid = args->egid;
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bsd.sgid = args->sgid;
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return (setresgid(td, &bsd));
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}
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int
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linux_setresuid16(struct thread *td, struct linux_setresuid16_args *args)
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{
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struct setresuid_args bsd;
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bsd.ruid = args->ruid;
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bsd.euid = args->euid;
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bsd.suid = args->suid;
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return (setresuid(td, &bsd));
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}
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