1 /* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License (the "License"). 6 * You may not use this file except in compliance with the License. 7 * 8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 9 * or http://www.opensolaris.org/os/licensing. 10 * See the License for the specific language governing permissions 11 * and limitations under the License. 12 * 13 * When distributing Covered Code, include this CDDL HEADER in each 14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 15 * If applicable, add the following below this CDDL HEADER, with the 16 * fields enclosed by brackets "[]" replaced with your own identifying 17 * information: Portions Copyright [yyyy] [name of copyright owner] 18 * 19 * CDDL HEADER END 20 */ 21 22 /* 23 * Copyright 2006 Sun Microsystems, Inc. All rights reserved. 24 * Use is subject to license terms. 25 */ 26 27 /* Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T */ 28 /* All Rights Reserved */ 29 30 #pragma ident "%Z%%M% %I% %E% SMI" 31 32 #include <sys/param.h> 33 #include <sys/types.h> 34 #include <sys/sysmacros.h> 35 #include <sys/systm.h> 36 #include <sys/tuneable.h> 37 #include <sys/errno.h> 38 #include <sys/var.h> 39 #include <sys/signal.h> 40 #include <sys/time.h> 41 #include <sys/sysconfig.h> 42 #include <sys/resource.h> 43 #include <sys/ulimit.h> 44 #include <sys/unistd.h> 45 #include <sys/debug.h> 46 #include <sys/cpuvar.h> 47 #include <sys/mman.h> 48 #include <sys/timer.h> 49 #include <sys/zone.h> 50 51 long 52 sysconfig(int which) 53 { 54 switch (which) { 55 56 /* 57 * if it is not handled in mach_sysconfig either 58 * it must be EINVAL. 59 */ 60 default: 61 return (mach_sysconfig(which)); /* `uname -i`/os */ 62 63 case _CONFIG_CLK_TCK: 64 return ((long)hz); /* clock frequency per second */ 65 66 case _CONFIG_PROF_TCK: 67 return ((long)hz); /* profiling clock freq per sec */ 68 69 case _CONFIG_NGROUPS: 70 /* 71 * Maximum number of supplementary groups. 72 */ 73 return (ngroups_max); 74 75 case _CONFIG_OPEN_FILES: 76 /* 77 * Maximum number of open files (soft limit). 78 */ 79 { 80 rlim64_t fd_ctl; 81 mutex_enter(&curproc->p_lock); 82 fd_ctl = rctl_enforced_value( 83 rctlproc_legacy[RLIMIT_NOFILE], curproc->p_rctls, 84 curproc); 85 mutex_exit(&curproc->p_lock); 86 return ((ulong_t)fd_ctl); 87 } 88 89 case _CONFIG_CHILD_MAX: 90 /* 91 * Maximum number of processes. 92 */ 93 return (v.v_maxup); 94 95 case _CONFIG_POSIX_VER: 96 return (_POSIX_VERSION); /* current POSIX version */ 97 98 case _CONFIG_PAGESIZE: 99 return (PAGESIZE); 100 101 case _CONFIG_XOPEN_VER: 102 return (_XOPEN_VERSION); /* current XOPEN version */ 103 104 case _CONFIG_NPROC_CONF: 105 return (zone_ncpus_get(curproc->p_zone)); 106 107 case _CONFIG_NPROC_ONLN: 108 return (zone_ncpus_online_get(curproc->p_zone)); 109 110 case _CONFIG_NPROC_MAX: 111 return (max_ncpus); 112 113 case _CONFIG_STACK_PROT: 114 return (curproc->p_stkprot & ~PROT_USER); 115 116 case _CONFIG_AIO_LISTIO_MAX: 117 return (_AIO_LISTIO_MAX); 118 119 case _CONFIG_AIO_MAX: 120 return (_AIO_MAX); 121 122 case _CONFIG_AIO_PRIO_DELTA_MAX: 123 return (0); 124 125 case _CONFIG_DELAYTIMER_MAX: 126 return (INT_MAX); 127 128 case _CONFIG_MQ_OPEN_MAX: 129 return (_MQ_OPEN_MAX); 130 131 case _CONFIG_MQ_PRIO_MAX: 132 return (_MQ_PRIO_MAX); 133 134 case _CONFIG_RTSIG_MAX: 135 return (_SIGRTMAX - _SIGRTMIN + 1); 136 137 case _CONFIG_SEM_NSEMS_MAX: 138 return (_SEM_NSEMS_MAX); 139 140 case _CONFIG_SEM_VALUE_MAX: 141 return (_SEM_VALUE_MAX); 142 143 case _CONFIG_SIGQUEUE_MAX: 144 return (_SIGQUEUE_MAX); 145 146 case _CONFIG_SIGRT_MIN: 147 return (_SIGRTMIN); 148 149 case _CONFIG_SIGRT_MAX: 150 return (_SIGRTMAX); 151 152 case _CONFIG_TIMER_MAX: 153 return (timer_max); 154 155 case _CONFIG_PHYS_PAGES: 156 return (physinstalled); 157 158 case _CONFIG_AVPHYS_PAGES: 159 return (freemem); 160 161 case _CONFIG_MAXPID: 162 return (maxpid); 163 164 case _CONFIG_CPUID_MAX: 165 return (max_cpuid); 166 167 case _CONFIG_SYMLOOP_MAX: 168 return (MAXSYMLINKS); 169 } 170 } 171