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 44 struct bintime; 45 46 /* 47 * Kernel per-process accounting / statistics 48 */ 49 struct 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 58 struct 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 */ 80 struct 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) 99 100 extern char defcorename[]; 101 102 extern int security_setidcore_dump; 103 extern char security_setidcore_path[]; 104 extern uid_t security_setidcore_owner; 105 extern gid_t security_setidcore_group; 106 extern mode_t security_setidcore_mode; 107 108 void addupc_intr(struct lwp *, u_long); 109 void addupc_task(struct lwp *, u_long, u_int); 110 void calcru(struct proc *, struct timeval *, struct timeval *, 111 struct timeval *, struct timeval *); 112 void addrulwp(struct lwp *, struct bintime *); 113 114 struct plimit *lim_copy(struct plimit *); 115 void lim_addref(struct plimit *); 116 void lim_privatise(struct proc *); 117 void lim_setcorename(struct proc *, char *, size_t); 118 void lim_free(struct plimit *); 119 120 void resource_init(void); 121 void ruspace(struct proc *); 122 void ruadd(struct rusage *, struct rusage *); 123 void rulwps(proc_t *, struct rusage *); 124 struct pstats *pstatscopy(struct pstats *); 125 void pstatsfree(struct pstats *); 126 extern rlim_t maxdmap; 127 extern rlim_t maxsmap; 128 129 int getrusage1(struct proc *, int, struct rusage *); 130 131 #endif 132 133 #endif /* !_SYS_RESOURCEVAR_H_ */ 134