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      1 /* 	$NetBSD: linux_limit.h,v 1.10 2024/10/01 16:41:29 riastradh Exp $ */
      2 
      3 /*-
      4  * Copyright (c) 1995, 1998, 1999 The NetBSD Foundation, Inc.
      5  * All rights reserved.
      6  *
      7  * This code is derived from software contributed to The NetBSD Foundation
      8  * by Frank van der Linden and Eric Haszlakiewicz; by Jason R. Thorpe
      9  * of the Numerical Aerospace Simulation Facility, NASA Ames Research Center.
     10  *
     11  * Redistribution and use in source and binary forms, with or without
     12  * modification, are permitted provided that the following conditions
     13  * are met:
     14  * 1. Redistributions of source code must retain the above copyright
     15  *    notice, this list of conditions and the following disclaimer.
     16  * 2. Redistributions in binary form must reproduce the above copyright
     17  *    notice, this list of conditions and the following disclaimer in the
     18  *    documentation and/or other materials provided with the distribution.
     19  *
     20  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     21  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     22  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     23  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     24  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     25  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     26  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     27  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     28  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     29  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     30  * POSSIBILITY OF SUCH DAMAGE.
     31  */
     32 
     33 #ifndef _LINUX_LIMIT_H_
     34 #define _LINUX_LIMIT_H_
     35 
     36 static int linux_to_bsd_limit(int);
     37 
     38 #define bsd_to_linux_rlimit64_1(l, b, f) \
     39     (l)->f = ((b)->f == RLIM_INFINITY || \
     40 	     ((b)->f & 0x8000000000000000UL) != 0) ? \
     41     LINUX_RLIM_INFINITY : (b)->f
     42 #define bsd_to_linux_rlimit32_1(l, b, f) \
     43     (l)->f = ((b)->f == RLIM_INFINITY || \
     44 	     ((b)->f & 0xffffffff00000000ULL) != 0) ? \
     45     LINUX_RLIM_INFINITY : (int32_t)(b)->f
     46 
     47 #define bsd_to_linux_rlimit64(l, b) \
     48     bsd_to_linux_rlimit64_1(l, b, rlim_cur); \
     49     bsd_to_linux_rlimit64_1(l, b, rlim_max)
     50 #define bsd_to_linux_rlimit32(l, b) \
     51     bsd_to_linux_rlimit32_1(l, b, rlim_cur); \
     52     bsd_to_linux_rlimit32_1(l, b, rlim_max)
     53 
     54 #ifdef LINUX_LARGEFILE64
     55 #define bsd_to_linux_rlimit(l, b)	bsd_to_linux_rlimit64(l, b)
     56 #else
     57 #define bsd_to_linux_rlimit(l, b)	bsd_to_linux_rlimit32(l, b)
     58 #endif
     59 
     60 #define linux_to_bsd_rlimit1(b, l, f) \
     61     (b)->f = (l)->f == LINUX_RLIM_INFINITY ? RLIM_INFINITY : (l)->f
     62 #define linux_to_bsd_rlimit(b, l) \
     63     linux_to_bsd_rlimit1(b, l, rlim_cur); \
     64     linux_to_bsd_rlimit1(b, l, rlim_max)
     65 
     66 #define linux32_to_bsd_rlimit1(b, l, f) \
     67     (b)->f = (l)->f == LINUX32_RLIM_INFINITY ? RLIM_INFINITY : (uint32_t)(l)->f
     68 #define linux32_to_bsd_rlimit(b, l) \
     69     linux32_to_bsd_rlimit1(b, l, rlim_cur); \
     70     linux32_to_bsd_rlimit1(b, l, rlim_max)
     71 
     72 static int
     73 linux_to_bsd_limit(int lim)
     74 {
     75 	switch (lim) {
     76 	case LINUX_RLIMIT_CPU:
     77 		return RLIMIT_CPU;
     78 	case LINUX_RLIMIT_FSIZE:
     79 		return RLIMIT_FSIZE;
     80 	case LINUX_RLIMIT_DATA:
     81 		return RLIMIT_DATA;
     82 	case LINUX_RLIMIT_STACK:
     83 		return RLIMIT_STACK;
     84 	case LINUX_RLIMIT_CORE:
     85 		return RLIMIT_CORE;
     86 	case LINUX_RLIMIT_RSS:
     87 		return RLIMIT_RSS;
     88 	case LINUX_RLIMIT_NPROC:
     89 		return RLIMIT_NPROC;
     90 	case LINUX_RLIMIT_NOFILE:
     91 		return RLIMIT_NOFILE;
     92 	case LINUX_RLIMIT_MEMLOCK:
     93 		return RLIMIT_MEMLOCK;
     94 	case LINUX_RLIMIT_AS:
     95 		return RLIMIT_AS;
     96 	case LINUX_RLIMIT_LOCKS:
     97 	case LINUX_RLIMIT_SIGPENDING:
     98 	case LINUX_RLIMIT_MSGQUEUE:
     99 	case LINUX_RLIMIT_NICE:
    100 	case LINUX_RLIMIT_RTPRIO:
    101 	case LINUX_RLIMIT_RTTIME:
    102 		return -EOPNOTSUPP;
    103 	default:
    104 		return -EINVAL;
    105 	}
    106 }
    107 
    108 
    109 #endif /* _LINUX_LIMIT_H_ */
    110