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linux32_resource.c revision 1.8 
      1 /*	$NetBSD: linux32_resource.c,v 1.8 2007/12/20 23:02:58 dsl Exp $ */
      2 
      3 /*-
      4  * Copyright (c) 2006 Emmanuel Dreyfus, all rights reserved.
      5  *
      6  * Redistribution and use in source and binary forms, with or without
      7  * modification, are permitted provided that the following conditions
      8  * are met:
      9  * 1. Redistributions of source code must retain the above copyright
     10  *    notice, this list of conditions and the following disclaimer.
     11  * 2. Redistributions in binary form must reproduce the above copyright
     12  *    notice, this list of conditions and the following disclaimer in the
     13  *    documentation and/or other materials provided with the distribution.
     14  * 3. All advertising materials mentioning features or use of this software
     15  *    must display the following acknowledgement:
     16  *	This product includes software developed by Emmanuel Dreyfus
     17  * 4. The name of the author may not be used to endorse or promote
     18  *    products derived from this software without specific prior written
     19  *    permission.
     20  *
     21  * THIS SOFTWARE IS PROVIDED BY THE THE AUTHOR AND CONTRIBUTORS ``AS IS''
     22  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
     23  * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     24  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS
     25  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     26  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     27  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     28  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     29  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     30  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     31  * POSSIBILITY OF SUCH DAMAGE.
     32  */
     33 
     34 #include <sys/cdefs.h>
     35 
     36 __KERNEL_RCSID(0, "$NetBSD: linux32_resource.c,v 1.8 2007/12/20 23:02:58 dsl Exp $");
     37 
     38 #include <sys/types.h>
     39 #include <sys/param.h>
     40 #include <sys/fstypes.h>
     41 #include <sys/signal.h>
     42 #include <sys/dirent.h>
     43 #include <sys/kernel.h>
     44 #include <sys/fcntl.h>
     45 #include <sys/select.h>
     46 #include <sys/proc.h>
     47 #include <sys/resourcevar.h>
     48 #include <sys/ucred.h>
     49 #include <sys/swap.h>
     50 
     51 #include <machine/types.h>
     52 
     53 #include <sys/syscallargs.h>
     54 
     55 #include <compat/netbsd32/netbsd32.h>
     56 #include <compat/netbsd32/netbsd32_conv.h>
     57 #include <compat/netbsd32/netbsd32_syscallargs.h>
     58 
     59 #include <compat/linux/common/linux_types.h>
     60 #include <compat/linux/common/linux_signal.h>
     61 #include <compat/linux/common/linux_machdep.h>
     62 #include <compat/linux/common/linux_misc.h>
     63 #include <compat/linux/common/linux_limit.h>
     64 #include <compat/linux/common/linux_oldolduname.h>
     65 #include <compat/linux/linux_syscallargs.h>
     66 
     67 #include <compat/linux32/common/linux32_types.h>
     68 #include <compat/linux32/common/linux32_signal.h>
     69 #include <compat/linux32/common/linux32_machdep.h>
     70 #include <compat/linux32/common/linux32_sysctl.h>
     71 #include <compat/linux32/common/linux32_socketcall.h>
     72 #include <compat/linux32/linux32_syscallargs.h>
     73 
     74 int
     75 linux32_sys_getrlimit(struct lwp *l, const struct linux32_sys_getrlimit_args *uap, register_t *retval)
     76 {
     77 	/* {
     78 		syscallarg(int) which;
     79 		syscallarg(netbsd32_orlimitp_t) rlp;
     80 	} */
     81 	struct orlimit orl;
     82 	int which;
     83 
     84 	which = linux_to_bsd_limit(SCARG(uap, which));
     85 	if (which < 0)
     86 		return -which;
     87 
     88 	bsd_to_linux_rlimit(&orl, &l->l_proc->p_rlimit[which]);
     89 
     90 	return copyout(&orl, SCARG_P32(uap, rlp), sizeof(orl));
     91 }
     92 
     93 int
     94 linux32_sys_setrlimit(struct lwp *l, const struct linux32_sys_setrlimit_args *uap, register_t *retval)
     95 {
     96 	/* {
     97 		syscallarg(int) which;
     98 		syscallarg(netbsd32_orlimitp_t) rlp;
     99 	} */
    100 	struct rlimit rl;
    101 	struct orlimit orl;
    102 	int error;
    103 	int which;
    104 
    105 	if ((error = copyin(SCARG_P32(uap, rlp), &orl, sizeof(orl))) != 0)
    106 		return error;
    107 
    108 	which = linux_to_bsd_limit(SCARG(uap, which));
    109 	if (which < 0)
    110 		return -which;
    111 
    112 	linux_to_bsd_rlimit(&rl, &orl);
    113 
    114 	return dosetrlimit(l, l->l_proc, which, &rl);
    115 }
    116 
    117 int
    118 linux32_sys_ugetrlimit(struct lwp *l, const struct linux32_sys_ugetrlimit_args *uap, register_t *retval)
    119 {
    120 	return linux32_sys_getrlimit(l, (const void *)uap, retval);
    121 }
    122 
    123 int
    124 linux32_sys_getpriority(struct lwp *l, const struct linux32_sys_getpriority_args *uap, register_t *retval)
    125 {
    126 	/* {
    127 		syscallarg(int) which;
    128 		syscallarg(int) who;
    129 	} */
    130 	struct sys_getpriority_args bsa;
    131 	int error;
    132 
    133 	SCARG(&bsa, which) = SCARG(uap, which);
    134 	SCARG(&bsa, who) = SCARG(uap, who);
    135 
    136 	if ((error = sys_getpriority(l, &bsa, retval)))
    137 		return error;
    138 
    139 	*retval = NZERO - *retval;
    140 
    141 	return 0;
    142 }
    143 
    144 int
    145 linux32_sys_setpriority(struct lwp *l, const struct linux32_sys_setpriority_args *uap, register_t *retval)
    146 {
    147 	/* {
    148 		syscallarg(int) which;
    149 		syscallarg(int) who;
    150 		syscallarg(int) prio;
    151 	} */
    152 	struct sys_setpriority_args bsa;
    153 
    154 	SCARG(&bsa, which) = SCARG(uap, which);
    155 	SCARG(&bsa, who) = SCARG(uap, who);
    156 	SCARG(&bsa, prio) = SCARG(uap, prio);
    157 
    158 	return sys_setpriority(l, &bsa, retval);
    159 }
    160