/* $NetBSD: linux32_resource.c,v 1.13 2021/12/02 04:29:49 ryo Exp $ */

/* $NetBSD: linux32_resource.c,v 1.13 2021/12/02 04:29:49 ryo Exp $ */

/*-
* Copyright (c) 2006 Emmanuel Dreyfus, 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.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by Emmanuel Dreyfus
* 4. The name of the author may not be used to endorse or promote
* products derived from this software without specific prior written
* permission.
*
* THIS SOFTWARE IS PROVIDED BY THE 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.
*/

#include <sys/cdefs.h>

__KERNEL_RCSID(0, "$NetBSD: linux32_resource.c,v 1.13 2021/12/02 04:29:49 ryo Exp $");

#include <sys/types.h>
#include <sys/param.h>
#include <sys/fstypes.h>
#include <sys/signal.h>
#include <sys/dirent.h>
#include <sys/kernel.h>
#include <sys/fcntl.h>
#include <sys/select.h>
#include <sys/proc.h>
#include <sys/resourcevar.h>
#include <sys/ucred.h>
#include <sys/swap.h>

#include <machine/types.h>

#include <sys/syscallargs.h>

#include <compat/netbsd32/netbsd32.h>
#include <compat/netbsd32/netbsd32_conv.h>
#include <compat/netbsd32/netbsd32_syscallargs.h>

#include <compat/linux/common/linux_types.h>
#include <compat/linux/common/linux_signal.h>
#include <compat/linux/common/linux_machdep.h>
#include <compat/linux/common/linux_misc.h>
#include <compat/linux/common/linux_limit.h>
#include <compat/linux/common/linux_oldolduname.h>
#include <compat/linux/common/linux_ipc.h>
#include <compat/linux/common/linux_sem.h>
#include <compat/linux/linux_syscallargs.h>

#include <compat/linux32/common/linux32_types.h>
#include <compat/linux32/common/linux32_signal.h>
#include <compat/linux32/common/linux32_machdep.h>
#include <compat/linux32/common/linux32_sysctl.h>
#include <compat/linux32/common/linux32_socketcall.h>
#include <compat/linux32/linux32_syscallargs.h>

int
linux32_sys_getrlimit(struct lwp *l, const struct linux32_sys_getrlimit_args *uap, register_t *retval)
{
/* {
syscallarg(int) which;
syscallarg(netbsd32_orlimitp_t) rlp;
} */
struct orlimit orl;
int which;

which = linux_to_bsd_limit(SCARG(uap, which));
if (which < 0)
return -which;

memset(&orl, 0, sizeof(orl));
bsd_to_linux_rlimit(&orl, &l->l_proc->p_rlimit[which]);

return copyout(&orl, SCARG_P32(uap, rlp), sizeof(orl));
}

int
linux32_sys_setrlimit(struct lwp *l, const struct linux32_sys_setrlimit_args *uap, register_t *retval)
{
/* {
syscallarg(int) which;
syscallarg(netbsd32_orlimitp_t) rlp;
} */
struct rlimit rl;
struct orlimit orl;
int error;
int which;

if ((error = copyin(SCARG_P32(uap, rlp), &orl, sizeof(orl))) != 0)
return error;

which = linux_to_bsd_limit(SCARG(uap, which));
if (which < 0)
return -which;

linux32_to_bsd_rlimit(&rl, &orl);

return dosetrlimit(l, l->l_proc, which, &rl);
}

int
linux32_sys_ugetrlimit(struct lwp *l, const struct linux32_sys_ugetrlimit_args *uap, register_t *retval)
{
return linux32_sys_getrlimit(l, (const void *)uap, retval);
}

int
linux32_sys_prlimit64(struct lwp *l, const struct linux32_sys_prlimit64_args *uap, register_t *retval)
{
/* {
syscallarg(pid_t) pid;
syscallarg(int) which;
syscallarg(netbsd32_rlimitp_t) new_rlp;
syscallarg(netbsd32_rlimitp_t) old_rlp;
}; */
struct rlimit rl, nrl, orl;
struct rlimit *p;
int which;
int error;

/* XXX: Cannot operate any process other than its own */
if (SCARG(uap, pid) != 0)
return EPERM;

which = linux_to_bsd_limit(SCARG(uap, which));
if (which < 0)
return -which;

p = SCARG_P32(uap, old_rlp);
if (p != NULL) {
memset(&orl, 0, sizeof(orl));
bsd_to_linux_rlimit64(&orl, &l->l_proc->p_rlimit[which]);
if ((error = copyout(&orl, p, sizeof(orl))) != 0)
return error;
}

p = SCARG_P32(uap, new_rlp);
if (p != NULL) {
if ((error = copyin(p, &nrl, sizeof(nrl))) != 0)
return error;

linux_to_bsd_rlimit(&rl, &nrl);
return dosetrlimit(l, l->l_proc, which, &rl);
}

return 0;
}

int
linux32_sys_getpriority(struct lwp *l, const struct linux32_sys_getpriority_args *uap, register_t *retval)
{
/* {
syscallarg(int) which;
syscallarg(int) who;
} */
struct sys_getpriority_args bsa;
int error;

SCARG(&bsa, which) = SCARG(uap, which);
SCARG(&bsa, who) = SCARG(uap, who);

if ((error = sys_getpriority(l, &bsa, retval)))
return error;

*retval = NZERO - *retval;

return 0;
}