sys/kern/posix4_mib.c

   1 /*-
   2  * Copyright (c) 1998
   3  *      HD Associates, Inc.  All rights reserved.
   4  *
   5  * Redistribution and use in source and binary forms, with or without
   6  * modification, are permitted provided that the following conditions
   7  * are met:
   8  * 1. Redistributions of source code must retain the above copyright
   9  *    notice, this list of conditions and the following disclaimer.
  10  * 2. Redistributions in binary form must reproduce the above copyright
  11  *    notice, this list of conditions and the following disclaimer in the
  12  *    documentation and/or other materials provided with the distribution.
  13  * 3. All advertising materials mentioning features or use of this software
  14  *    must display the following acknowledgement:
  15  *      This product includes software developed by HD Associates, Inc
  16  * 4. Neither the name of the author nor the names of any co-contributors
  17  *    may be used to endorse or promote products derived from this software
  18  *    without specific prior written permission.
  19  *
  20  * THIS SOFTWARE IS PROVIDED BY HD ASSOCIATES AND CONTRIBUTORS ``AS IS'' AND
  21  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  22  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  23  * ARE DISCLAIMED.  IN NO EVENT SHALL HD ASSOCIATES OR CONTRIBUTORS BE LIABLE
  24  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  25  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  26  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  27  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  28  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  29  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  30  * SUCH DAMAGE.
  31  */
  32
  33 #include <sys/cdefs.h>
  34 __FBSDID("$FreeBSD$");
  35
  36 #include <sys/param.h>
  37 #include <sys/systm.h>
  38 #include <sys/kernel.h>
  39 #include <sys/queue.h>
  40 #include <sys/sysctl.h>
  41 #include <sys/vnode.h>
  42 #include <sys/proc.h>
  43 #include <sys/posix4.h>
  44
  45 static int facility[CTL_P1003_1B_MAXID - 1];
  46 static int facility_initialized[CTL_P1003_1B_MAXID - 1];
  47
  48 /* OID_AUTO isn't working with sysconf(3).  I guess I'd have to
  49  * modify it to do a lookup by name from the index.
  50  * For now I've left it a top-level sysctl.
  51  */
  52
  53 #if 1
  54
  55 SYSCTL_DECL(_p1003_1b);
  56
  57 #define P1B_SYSCTL(num, name)  \
  58 SYSCTL_INT(_p1003_1b, num, \
  59         name, CTLFLAG_RD, facility + num - 1, 0, "");
  60
  61 #else
  62
  63 SYSCTL_DECL(_kern_p1003_1b);
  64
  65 #define P1B_SYSCTL(num, name)  \
  66 SYSCTL_INT(_kern_p1003_1b, OID_AUTO, \
  67         name, CTLFLAG_RD, facility + num - 1, 0, "");
  68 SYSCTL_NODE(_kern, OID_AUTO, p1003_1b, CTLFLAG_RW, 0, "P1003.1B");
  69
  70 #endif
  71
  72 SYSCTL_INT(_p1003_1b, CTL_P1003_1B_ASYNCHRONOUS_IO, \
  73         asynchronous_io, CTLFLAG_RD, &async_io_version, 0, "");
  74 P1B_SYSCTL(CTL_P1003_1B_MAPPED_FILES, mapped_files);
  75 P1B_SYSCTL(CTL_P1003_1B_MEMLOCK, memlock);
  76 P1B_SYSCTL(CTL_P1003_1B_MEMLOCK_RANGE, memlock_range);
  77 P1B_SYSCTL(CTL_P1003_1B_MEMORY_PROTECTION, memory_protection);
  78 P1B_SYSCTL(CTL_P1003_1B_MESSAGE_PASSING, message_passing);
  79 P1B_SYSCTL(CTL_P1003_1B_PRIORITIZED_IO, prioritized_io);
  80 P1B_SYSCTL(CTL_P1003_1B_PRIORITY_SCHEDULING, priority_scheduling);
  81 P1B_SYSCTL(CTL_P1003_1B_REALTIME_SIGNALS, realtime_signals);
  82 P1B_SYSCTL(CTL_P1003_1B_SEMAPHORES, semaphores);
  83 P1B_SYSCTL(CTL_P1003_1B_FSYNC, fsync);
  84 P1B_SYSCTL(CTL_P1003_1B_SHARED_MEMORY_OBJECTS, shared_memory_objects);
  85 P1B_SYSCTL(CTL_P1003_1B_SYNCHRONIZED_IO, synchronized_io);
  86 P1B_SYSCTL(CTL_P1003_1B_TIMERS, timers);
  87 P1B_SYSCTL(CTL_P1003_1B_AIO_LISTIO_MAX, aio_listio_max);
  88 P1B_SYSCTL(CTL_P1003_1B_AIO_MAX, aio_max);
  89 P1B_SYSCTL(CTL_P1003_1B_AIO_PRIO_DELTA_MAX, aio_prio_delta_max);
  90 P1B_SYSCTL(CTL_P1003_1B_DELAYTIMER_MAX, delaytimer_max);
  91 P1B_SYSCTL(CTL_P1003_1B_MQ_OPEN_MAX, mq_open_max);
  92 P1B_SYSCTL(CTL_P1003_1B_PAGESIZE, pagesize);
  93 P1B_SYSCTL(CTL_P1003_1B_RTSIG_MAX, rtsig_max);
  94 P1B_SYSCTL(CTL_P1003_1B_SEM_NSEMS_MAX, sem_nsems_max);
  95 P1B_SYSCTL(CTL_P1003_1B_SEM_VALUE_MAX, sem_value_max);
  96 P1B_SYSCTL(CTL_P1003_1B_SIGQUEUE_MAX, sigqueue_max);
  97 P1B_SYSCTL(CTL_P1003_1B_TIMER_MAX, timer_max);
  98
  99 #define P31B_VALID(num) ((num) >= 1 && (num) < CTL_P1003_1B_MAXID)
 100
 101 /* p31b_setcfg: Set the configuration
 102  */
 103 void
 104 p31b_setcfg(int num, int value)
 105 {
 106
 107         if (P31B_VALID(num)) {
 108                 facility[num - 1] = value;
 109                 facility_initialized[num - 1] = 1;
 110         }
 111 }
 112
 113 int
 114 p31b_getcfg(int num)
 115 {
 116
 117         if (P31B_VALID(num))
 118                 return (facility[num - 1]);
 119         return (0);
 120 }
 121
 122 int
 123 p31b_iscfg(int num)
 124 {
 125
 126         if (P31B_VALID(num))
 127                 return (facility_initialized[num - 1]);
 128         return (0);
 129 }
 130
 131 /*
 132  * Turn on indications for standard (non-configurable) kernel features.
 133  */
 134 static void
 135 p31b_set_standard(void *dummy)
 136 {
 137         /* ??? p31b_setcfg(CTL_P1003_1B_FSYNC, 1); */
 138         p31b_setcfg(CTL_P1003_1B_MAPPED_FILES, 1);
 139         p31b_setcfg(CTL_P1003_1B_SHARED_MEMORY_OBJECTS, 1);
 140         p31b_setcfg(CTL_P1003_1B_PAGESIZE, PAGE_SIZE);
 141         if (!p31b_iscfg(CTL_P1003_1B_AIO_LISTIO_MAX))
 142                 p31b_setcfg(CTL_P1003_1B_AIO_LISTIO_MAX, -1);
 143         if (!p31b_iscfg(CTL_P1003_1B_AIO_MAX))
 144                 p31b_setcfg(CTL_P1003_1B_AIO_MAX, -1);
 145         if (!p31b_iscfg(CTL_P1003_1B_AIO_PRIO_DELTA_MAX))
 146                 p31b_setcfg(CTL_P1003_1B_AIO_PRIO_DELTA_MAX, -1);
 147 }
 148
 149 SYSINIT(p31b_set_standard, SI_SUB_P1003_1B, SI_ORDER_ANY, p31b_set_standard,
 150         0);
 151