1/* $NetBSD: resourcevar.h,v 1.59 2024/05/12 10:34:56 rillig Exp $ */
2
3/*
4 * Copyright (c) 1991, 1993
5 * The Regents of the University of California. All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
15 * 3. Neither the name of the University nor the names of its contributors
16 * may be used to endorse or promote products derived from this software
17 * without specific prior written permission.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
22 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
29 * SUCH DAMAGE.
30 *
31 * @(#)resourcevar.h 8.4 (Berkeley) 1/9/95
32 */
33
34#ifndef _SYS_RESOURCEVAR_H_
35#define _SYS_RESOURCEVAR_H_
36
37#if !defined(_KERNEL) && !defined(_KMEMUSER)
38#error "not supposed to be exposed to userland"
39#endif
40
41#include <sys/mutex.h>
42#include <sys/resource.h>
43
44struct bintime;
45
46/*
47 * Kernel per-process accounting / statistics
48 */
49struct uprof { /* profile arguments */
50 char * pr_base; /* buffer base */
51 size_t pr_size; /* buffer size */
52 u_long pr_off; /* pc offset */
53 u_int pr_scale; /* pc scaling */
54 u_long pr_addr; /* temp storage for addr until AST */
55 u_long pr_ticks; /* temp storage for ticks until AST */
56};
57
58struct pstats {
59#define pstat_startzero p_ru
60 struct rusage p_ru; /* stats for this proc */
61 struct rusage p_cru; /* sum of stats for reaped children */
62#define pstat_endzero pstat_startcopy
63
64#define pstat_startcopy p_timer
65 struct itimerspec p_timer[3]; /* virtual-time timers */
66 struct uprof p_prof; /* profile arguments */
67#define pstat_endcopy p_start
68 struct timeval p_start; /* starting time */
69};
70
71#ifdef _KERNEL
72
73/*
74 * Process resource limits. Since this structure is moderately large,
75 * but changes infrequently, it is shared copy-on-write after forks.
76 *
77 * When a separate copy is created, then 'pl_writeable' is set to true,
78 * and 'pl_sv_limit' is pointed to the old proc_t::p_limit structure.
79 */
80struct plimit {
81 struct rlimit pl_rlimit[RLIM_NLIMITS];
82 char * pl_corename;
83 size_t pl_cnlen;
84 u_int pl_refcnt;
85 bool pl_writeable;
86 kmutex_t pl_lock;
87 struct plimit * pl_sv_limit;
88};
89
90/* add user profiling from AST XXXSMP */
91#define ADDUPROF(l) \
92 do { \
93 struct proc *_p = (l)->l_proc; \
94 addupc_task((l), \
95 _p->p_stats->p_prof.pr_addr, \
96 _p->p_stats->p_prof.pr_ticks); \
97 _p->p_stats->p_prof.pr_ticks = 0; \
98 } while (0)
99
100extern char defcorename[];
101
102extern int security_setidcore_dump;
103extern char security_setidcore_path[];
104extern uid_t security_setidcore_owner;
105extern gid_t security_setidcore_group;
106extern mode_t security_setidcore_mode;
107
108void addupc_intr(struct lwp *, u_long);
109void addupc_task(struct lwp *, u_long, u_int);
110void calcru(struct proc *, struct timeval *, struct timeval *,
111 struct timeval *, struct timeval *);
112void addrulwp(struct lwp *, struct bintime *);
113
114struct plimit *lim_copy(struct plimit *);
115void lim_addref(struct plimit *);
116void lim_privatise(struct proc *);
117void lim_setcorename(struct proc *, char *, size_t);
118void lim_free(struct plimit *);
119
120void resource_init(void);
121void ruspace(struct proc *);
122void ruadd(struct rusage *, struct rusage *);
123void rulwps(proc_t *, struct rusage *);
124struct pstats *pstatscopy(struct pstats *);
125void pstatsfree(struct pstats *);
126extern rlim_t maxdmap;
127extern rlim_t maxsmap;
128
129int getrusage1(struct proc *, int, struct rusage *);
130
131#endif
132
133#endif /* !_SYS_RESOURCEVAR_H_ */