1/* 	$NetBSD: linux_limit.h,v 1.9 2024/05/12 17:23:10 christos 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
36static 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
72static int
73linux_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