1 /*-
2 * SPDX-License-Identifier: BSD-4-Clause
3 *
4 * Copyright (c) 1998
5 * HD Associates, Inc. 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. All advertising materials mentioning features or use of this software
16 * must display the following acknowledgement:
17 * This product includes software developed by HD Associates, Inc
18 * 4. Neither the name of the author nor the names of any co-contributors
19 * may be used to endorse or promote products derived from this software
20 * without specific prior written permission.
21 *
22 * THIS SOFTWARE IS PROVIDED BY HD ASSOCIATES AND CONTRIBUTORS ``AS IS'' AND
23 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
24 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
25 * ARE DISCLAIMED. IN NO EVENT SHALL HD ASSOCIATES OR CONTRIBUTORS BE LIABLE
26 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
27 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
28 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
29 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
30 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
31 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
32 * SUCH DAMAGE.
33 */
34
35 #include <sys/param.h>
36 #include <sys/systm.h>
37 #include <sys/kernel.h>
38 #include <sys/queue.h>
39 #include <sys/sysctl.h>
40 #include <sys/vnode.h>
41 #include <sys/proc.h>
42 #include <sys/posix4.h>
43
44 static int facility[CTL_P1003_1B_MAXID - 1];
45 static int facility_initialized[CTL_P1003_1B_MAXID - 1];
46
47 static int p31b_sysctl_proc(SYSCTL_HANDLER_ARGS);
48
49 /* OID_AUTO isn't working with sysconf(3). I guess I'd have to
50 * modify it to do a lookup by name from the index.
51 * For now I've left it a top-level sysctl.
52 */
53
54 #if 1
55
56 SYSCTL_DECL(_p1003_1b);
57
58 #define P1B_SYSCTL(num, name) \
59 SYSCTL_INT(_p1003_1b, num, name, CTLFLAG_RD | CTLFLAG_CAPRD, \
60 facility + num - 1, 0, "");
61 #define P1B_SYSCTL_RW(num, name) \
62 SYSCTL_PROC(_p1003_1b, num, name, \
63 CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_NEEDGIANT, NULL, num, \
64 p31b_sysctl_proc, "I", "");
65
66 #else
67
68 SYSCTL_DECL(_kern_p1003_1b);
69
70 #define P1B_SYSCTL(num, name) \
71 SYSCTL_INT(_kern_p1003_1b, OID_AUTO, name, CTLFLAG_RD | CTLFLAG_CAPRD, \
72 facility + num - 1, 0, "");
73 #define P1B_SYSCTL_RW(num, name) \
74 SYSCTL_PROC(_p1003_1b, OID_AUTO, name, CTLTYPE_INT | CTLFLAG_RW, NULL, \
75 num, p31b_sysctl_proc, "I", "");
76 SYSCTL_NODE(_kern, OID_AUTO, p1003_1b, CTLFLAG_RW | CTLFLAG_MPSAFE, 0,
77 "P1003.1B");
78
79 #endif
80
81 P1B_SYSCTL(CTL_P1003_1B_ASYNCHRONOUS_IO, asynchronous_io);
82 P1B_SYSCTL(CTL_P1003_1B_MAPPED_FILES, mapped_files);
83 P1B_SYSCTL(CTL_P1003_1B_MEMLOCK, memlock);
84 P1B_SYSCTL(CTL_P1003_1B_MEMLOCK_RANGE, memlock_range);
85 P1B_SYSCTL(CTL_P1003_1B_MEMORY_PROTECTION, memory_protection);
86 P1B_SYSCTL(CTL_P1003_1B_MESSAGE_PASSING, message_passing);
87 P1B_SYSCTL(CTL_P1003_1B_PRIORITIZED_IO, prioritized_io);
88 P1B_SYSCTL(CTL_P1003_1B_PRIORITY_SCHEDULING, priority_scheduling);
89 P1B_SYSCTL(CTL_P1003_1B_REALTIME_SIGNALS, realtime_signals);
90 P1B_SYSCTL(CTL_P1003_1B_SEMAPHORES, semaphores);
91 P1B_SYSCTL(CTL_P1003_1B_FSYNC, fsync);
92 P1B_SYSCTL(CTL_P1003_1B_SHARED_MEMORY_OBJECTS, shared_memory_objects);
93 P1B_SYSCTL(CTL_P1003_1B_SYNCHRONIZED_IO, synchronized_io);
94 P1B_SYSCTL(CTL_P1003_1B_TIMERS, timers);
95 P1B_SYSCTL(CTL_P1003_1B_AIO_MAX, aio_max);
96 P1B_SYSCTL(CTL_P1003_1B_AIO_PRIO_DELTA_MAX, aio_prio_delta_max);
97 P1B_SYSCTL(CTL_P1003_1B_DELAYTIMER_MAX, delaytimer_max);
98 P1B_SYSCTL(CTL_P1003_1B_MQ_OPEN_MAX, mq_open_max);
99 P1B_SYSCTL(CTL_P1003_1B_PAGESIZE, pagesize);
100 P1B_SYSCTL(CTL_P1003_1B_RTSIG_MAX, rtsig_max);
101 P1B_SYSCTL_RW(CTL_P1003_1B_SEM_NSEMS_MAX, sem_nsems_max);
102 P1B_SYSCTL(CTL_P1003_1B_SEM_VALUE_MAX, sem_value_max);
103 P1B_SYSCTL(CTL_P1003_1B_SIGQUEUE_MAX, sigqueue_max);
104 P1B_SYSCTL(CTL_P1003_1B_TIMER_MAX, timer_max);
105
106 #define P31B_VALID(num) ((num) >= 1 && (num) < CTL_P1003_1B_MAXID)
107
108 static int
p31b_sysctl_proc(SYSCTL_HANDLER_ARGS)109 p31b_sysctl_proc(SYSCTL_HANDLER_ARGS)
110 {
111 int error, num, val;
112
113 num = arg2;
114 if (!P31B_VALID(num))
115 return (EINVAL);
116 val = facility_initialized[num - 1] ? facility[num - 1] : 0;
117 error = sysctl_handle_int(oidp, &val, 0, req);
118 if (error == 0 && req->newptr != NULL && facility_initialized[num - 1])
119 facility[num - 1] = val;
120 return (error);
121 }
122
123 /* p31b_setcfg: Set the configuration
124 */
125 void
p31b_setcfg(int num,int value)126 p31b_setcfg(int num, int value)
127 {
128
129 if (P31B_VALID(num)) {
130 facility[num - 1] = value;
131 facility_initialized[num - 1] = 1;
132 }
133 }
134
135 void
p31b_unsetcfg(int num)136 p31b_unsetcfg(int num)
137 {
138
139 facility[num - 1] = 0;
140 facility_initialized[num - 1] = 0;
141 }
142
143 int
p31b_getcfg(int num)144 p31b_getcfg(int num)
145 {
146
147 if (P31B_VALID(num))
148 return (facility[num - 1]);
149 return (0);
150 }
151
152 int
p31b_iscfg(int num)153 p31b_iscfg(int num)
154 {
155
156 if (P31B_VALID(num))
157 return (facility_initialized[num - 1]);
158 return (0);
159 }
160
161 /*
162 * Turn on indications for standard (non-configurable) kernel features.
163 */
164 static void
p31b_set_standard(void * dummy)165 p31b_set_standard(void *dummy)
166 {
167
168 p31b_setcfg(CTL_P1003_1B_FSYNC, 200112L);
169 p31b_setcfg(CTL_P1003_1B_MAPPED_FILES, 200112L);
170 p31b_setcfg(CTL_P1003_1B_SHARED_MEMORY_OBJECTS, 200112L);
171 p31b_setcfg(CTL_P1003_1B_PAGESIZE, PAGE_SIZE);
172 }
173
174 SYSINIT(p31b_set_standard, SI_SUB_P1003_1B, SI_ORDER_ANY, p31b_set_standard,
175 NULL);
176