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sysctl.c

6-freebsd-12

Last change on this file was a69293c, checked in by Jan Sommer <jan.sommer@…>, on 04/17/20 at 08:24:08

i386: Port to RTEMS

Update imported files to compile rtems-libbsd for i386 based BSPs
Mostly commenting out parts which create compile or link errors in

RTEMS, but aren't needed

Property mode set to 100644

File size: 28.2 KB

Line
1	#include <machine/rtems-bsd-user-space.h>
2
3	#ifdef __rtems__
4	#include "rtems-bsd-sysctl-namespace.h"
5	#endif /* __rtems__ */
6
7	/*-
8	* SPDX-License-Identifier: BSD-3-Clause
9	*
10	* Copyright (c) 1993
11	* The Regents of the University of California. All rights reserved.
12	*
13	* Redistribution and use in source and binary forms, with or without
14	* modification, are permitted provided that the following conditions
15	* are met:
16	* 1. Redistributions of source code must retain the above copyright
17	* notice, this list of conditions and the following disclaimer.
18	* 2. Redistributions in binary form must reproduce the above copyright
19	* notice, this list of conditions and the following disclaimer in the
20	* documentation and/or other materials provided with the distribution.
21	* 3. Neither the name of the University nor the names of its contributors
22	* may be used to endorse or promote products derived from this software
23	* without specific prior written permission.
24	*
25	* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
26	* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
27	* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
28	* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
29	* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
30	* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
31	* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
32	* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
33	* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
34	* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
35	* SUCH DAMAGE.
36	*/
37
38	#ifndef lint
39	static const char copyright[] =
40	"@(#) Copyright (c) 1993\n\
41	The Regents of the University of California. All rights reserved.\n";
42	#endif /* not lint */
43
44	#ifndef lint
45	#if 0
46	static char sccsid[] = "@(#)from: sysctl.c 8.1 (Berkeley) 6/6/93";
47	#endif
48	static const char rcsid[] =
49	"$FreeBSD$";
50	#endif /* not lint */
51
52	#ifdef __rtems__
53	#define __need_getopt_newlib
54	#include <getopt.h>
55	#include <machine/rtems-bsd-program.h>
56	#include <machine/rtems-bsd-commands.h>
57	#endif /* __rtems__ */
58	#include <sys/param.h>
59	#include <sys/time.h>
60	#include <rtems/bsd/sys/resource.h>
61	#include <sys/stat.h>
62	#include <sys/sysctl.h>
63	#include <sys/vmmeter.h>
64	#include <dev/evdev/input.h>
65
66	#ifdef __amd64__
67	#include <sys/efi.h>
68	#include <machine/metadata.h>
69	#endif
70
71	#if defined(__amd64__) \|\| defined(__i386__)
72	#ifndef __rtems__
73	#include <machine/pc/bios.h>
74	#endif /* __rtems__ */
75	#endif
76
77	#include <assert.h>
78	#include <ctype.h>
79	#include <err.h>
80	#include <errno.h>
81	#include <inttypes.h>
82	#include <locale.h>
83	#include <stdbool.h>
84	#include <stdio.h>
85	#include <stdlib.h>
86	#include <string.h>
87	#include <sysexits.h>
88	#include <unistd.h>
89	#ifdef __rtems__
90	#include "rtems-bsd-sysctl-sysctl-data.h"
91	#endif /* __rtems__ */
92
93	static const char *conffile;
94
95	static int aflag, bflag, Bflag, dflag, eflag, hflag, iflag;
96	static int Nflag, nflag, oflag, qflag, tflag, Tflag, Wflag, xflag;
97
98	static int oidfmt(int , int, char , u_int *);
99	static int parsefile(const char *);
100	static int parse(const char *, int);
101	static int show_var(int *, int);
102	static int sysctl_all(int *oid, int len);
103	static int name2oid(const char , int );
104
105	static int strIKtoi(const char , char , const char );
106
107	static int ctl_sign[CTLTYPE+1] = {
108	[CTLTYPE_INT] = 1,
109	[CTLTYPE_LONG] = 1,
110	[CTLTYPE_S8] = 1,
111	[CTLTYPE_S16] = 1,
112	[CTLTYPE_S32] = 1,
113	[CTLTYPE_S64] = 1,
114	};
115
116	static int ctl_size[CTLTYPE+1] = {
117	[CTLTYPE_INT] = sizeof(int),
118	[CTLTYPE_UINT] = sizeof(u_int),
119	[CTLTYPE_LONG] = sizeof(long),
120	[CTLTYPE_ULONG] = sizeof(u_long),
121	[CTLTYPE_S8] = sizeof(int8_t),
122	[CTLTYPE_S16] = sizeof(int16_t),
123	[CTLTYPE_S32] = sizeof(int32_t),
124	[CTLTYPE_S64] = sizeof(int64_t),
125	[CTLTYPE_U8] = sizeof(uint8_t),
126	[CTLTYPE_U16] = sizeof(uint16_t),
127	[CTLTYPE_U32] = sizeof(uint32_t),
128	[CTLTYPE_U64] = sizeof(uint64_t),
129	};
130
131	static const char *ctl_typename[CTLTYPE+1] = {
132	[CTLTYPE_INT] = "integer",
133	[CTLTYPE_UINT] = "unsigned integer",
134	[CTLTYPE_LONG] = "long integer",
135	[CTLTYPE_ULONG] = "unsigned long",
136	[CTLTYPE_U8] = "uint8_t",
137	[CTLTYPE_U16] = "uint16_t",
138	[CTLTYPE_U32] = "uint32_t",
139	[CTLTYPE_U64] = "uint64_t",
140	[CTLTYPE_S8] = "int8_t",
141	[CTLTYPE_S16] = "int16_t",
142	[CTLTYPE_S32] = "int32_t",
143	[CTLTYPE_S64] = "int64_t",
144	[CTLTYPE_NODE] = "node",
145	[CTLTYPE_STRING] = "string",
146	[CTLTYPE_OPAQUE] = "opaque",
147	};
148
149	static void
150	usage(void)
151	{
152
153	(void)fprintf(stderr, "%s\n%s\n",
154	"usage: sysctl [-bdehiNnoqTtWx] [ -B <bufsize> ] [-f filename] name[=value] ...",
155	" sysctl [-bdehNnoqTtWx] [ -B <bufsize> ] -a");
156	exit(1);
157	}
158
159	#ifdef __rtems__
160	static int main(int argc, char *argv[]);
161
162	RTEMS_LINKER_RWSET(bsd_prog_sysctl, char);
163
164	int
165	rtems_bsd_command_sysctl(int argc, char *argv[])
166	{
167	int exit_code;
168	void *data_begin;
169	size_t data_size;
170
171	data_begin = RTEMS_LINKER_SET_BEGIN(bsd_prog_sysctl);
172	data_size = RTEMS_LINKER_SET_SIZE(bsd_prog_sysctl);
173
174	rtems_bsd_program_lock();
175	exit_code = rtems_bsd_program_call_main_with_data_restore("sysctl",
176	main, argc, argv, data_begin, data_size);
177	rtems_bsd_program_unlock();
178
179	return exit_code;
180	}
181	#endif /* __rtems__ */
182	int
183	main(int argc, char **argv)
184	{
185	int ch;
186	int warncount = 0;
187	#ifdef __rtems__
188	struct getopt_data getopt_data;
189	memset(&getopt_data, 0, sizeof(getopt_data));
190	#define optind getopt_data.optind
191	#define optarg getopt_data.optarg
192	#define opterr getopt_data.opterr
193	#define optopt getopt_data.optopt
194	#define getopt(argc, argv, opt) getopt_r(argc, argv, "+" opt, &getopt_data)
195	#endif /* __rtems__ */
196
197	setlocale(LC_NUMERIC, "");
198	setbuf(stdout,0);
199	setbuf(stderr,0);
200
201	while ((ch = getopt(argc, argv, "AabB:def:hiNnoqtTwWxX")) != -1) {
202	switch (ch) {
203	case 'A':
204	/* compatibility */
205	aflag = oflag = 1;
206	break;
207	case 'a':
208	aflag = 1;
209	break;
210	case 'b':
211	bflag = 1;
212	break;
213	case 'B':
214	Bflag = strtol(optarg, NULL, 0);
215	break;
216	case 'd':
217	dflag = 1;
218	break;
219	case 'e':
220	eflag = 1;
221	break;
222	case 'f':
223	conffile = optarg;
224	break;
225	case 'h':
226	hflag = 1;
227	break;
228	case 'i':
229	iflag = 1;
230	break;
231	case 'N':
232	Nflag = 1;
233	break;
234	case 'n':
235	nflag = 1;
236	break;
237	case 'o':
238	oflag = 1;
239	break;
240	case 'q':
241	qflag = 1;
242	break;
243	case 't':
244	tflag = 1;
245	break;
246	case 'T':
247	Tflag = 1;
248	break;
249	case 'w':
250	/* compatibility */
251	/* ignored */
252	break;
253	case 'W':
254	Wflag = 1;
255	break;
256	case 'X':
257	/* compatibility */
258	aflag = xflag = 1;
259	break;
260	case 'x':
261	xflag = 1;
262	break;
263	default:
264	usage();
265	}
266	}
267	argc -= optind;
268	argv += optind;
269
270	if (Nflag && nflag)
271	usage();
272	if (aflag && argc == 0)
273	exit(sysctl_all(0, 0));
274	if (argc == 0 && conffile == NULL)
275	usage();
276
277	warncount = 0;
278	if (conffile != NULL)
279	warncount += parsefile(conffile);
280
281	while (argc-- > 0)
282	warncount += parse(*argv++, 0);
283
284	return (warncount);
285	}
286
287	/*
288	* Parse a single numeric value, append it to 'newbuf', and update
289	* 'newsize'. Returns true if the value was parsed and false if the
290	* value was invalid. Non-numeric types (strings) are handled
291	* directly in parse().
292	*/
293	static bool
294	parse_numeric(const char newvalstr, const char fmt, u_int kind,
295	void *newbufp, size_t newsizep)
296	{
297	void *newbuf;
298	const void *newval;
299	int8_t i8val;
300	uint8_t u8val;
301	int16_t i16val;
302	uint16_t u16val;
303	int32_t i32val;
304	uint32_t u32val;
305	int intval;
306	unsigned int uintval;
307	long longval;
308	unsigned long ulongval;
309	int64_t i64val;
310	uint64_t u64val;
311	size_t valsize;
312	char *endptr = NULL;
313
314	errno = 0;
315
316	switch (kind & CTLTYPE) {
317	case CTLTYPE_INT:
318	if (strncmp(fmt, "IK", 2) == 0)
319	intval = strIKtoi(newvalstr, &endptr, fmt);
320	else
321	intval = (int)strtol(newvalstr, &endptr, 0);
322	newval = &intval;
323	valsize = sizeof(intval);
324	break;
325	case CTLTYPE_UINT:
326	uintval = (int) strtoul(newvalstr, &endptr, 0);
327	newval = &uintval;
328	valsize = sizeof(uintval);
329	break;
330	case CTLTYPE_LONG:
331	longval = strtol(newvalstr, &endptr, 0);
332	newval = &longval;
333	valsize = sizeof(longval);
334	break;
335	case CTLTYPE_ULONG:
336	ulongval = strtoul(newvalstr, &endptr, 0);
337	newval = &ulongval;
338	valsize = sizeof(ulongval);
339	break;
340	case CTLTYPE_S8:
341	i8val = (int8_t)strtol(newvalstr, &endptr, 0);
342	newval = &i8val;
343	valsize = sizeof(i8val);
344	break;
345	case CTLTYPE_S16:
346	i16val = (int16_t)strtol(newvalstr, &endptr, 0);
347	newval = &i16val;
348	valsize = sizeof(i16val);
349	break;
350	case CTLTYPE_S32:
351	i32val = (int32_t)strtol(newvalstr, &endptr, 0);
352	newval = &i32val;
353	valsize = sizeof(i32val);
354	break;
355	case CTLTYPE_S64:
356	i64val = strtoimax(newvalstr, &endptr, 0);
357	newval = &i64val;
358	valsize = sizeof(i64val);
359	break;
360	case CTLTYPE_U8:
361	u8val = (uint8_t)strtoul(newvalstr, &endptr, 0);
362	newval = &u8val;
363	valsize = sizeof(u8val);
364	break;
365	case CTLTYPE_U16:
366	u16val = (uint16_t)strtoul(newvalstr, &endptr, 0);
367	newval = &u16val;
368	valsize = sizeof(u16val);
369	break;
370	case CTLTYPE_U32:
371	u32val = (uint32_t)strtoul(newvalstr, &endptr, 0);
372	newval = &u32val;
373	valsize = sizeof(u32val);
374	break;
375	case CTLTYPE_U64:
376	u64val = strtoumax(newvalstr, &endptr, 0);
377	newval = &u64val;
378	valsize = sizeof(u64val);
379	break;
380	default:
381	/* NOTREACHED */
382	abort();
383	}
384
385	if (errno != 0 \|\| endptr == newvalstr \|\|
386	(endptr != NULL && *endptr != '\0'))
387	return (false);
388
389	newbuf = realloc(newbufp, newsizep + valsize);
390	if (newbuf == NULL)
391	err(1, "out of memory");
392	memcpy((char )newbuf + newsizep, newval, valsize);
393	*newbufp = newbuf;
394	*newsizep += valsize;
395
396	return (true);
397	}
398
399	/*
400	* Parse a name into a MIB entry.
401	* Lookup and print out the MIB entry if it exists.
402	* Set a new value if requested.
403	*/
404	static int
405	parse(const char *string, int lineno)
406	{
407	int len, i, j;
408	const void *newval;
409	char *newvalstr = NULL;
410	void *newbuf;
411	size_t newsize = Bflag;
412	int mib[CTL_MAXNAME];
413	char cp, bufp, buf[BUFSIZ], fmt[BUFSIZ], line[BUFSIZ];
414	u_int kind;
415
416	if (lineno)
417	snprintf(line, sizeof(line), " at line %d", lineno);
418	else
419	line[0] = '\0';
420
421	cp = buf;
422	if (snprintf(buf, BUFSIZ, "%s", string) >= BUFSIZ) {
423	warnx("oid too long: '%s'%s", string, line);
424	return (1);
425	}
426	bufp = strsep(&cp, "=:");
427	if (cp != NULL) {
428	/* Tflag just lists tunables, do not allow assignment */
429	if (Tflag \|\| Wflag) {
430	warnx("Can't set variables when using -T or -W");
431	usage();
432	}
433	while (isspace(*cp))
434	cp++;
435	/* Strip a pair of " or ' if any. */
436	switch (*cp) {
437	case '\"':
438	case '\'':
439	if (cp[strlen(cp) - 1] == *cp)
440	cp[strlen(cp) - 1] = '\0';
441	cp++;
442	}
443	newvalstr = cp;
444	newsize = strlen(cp);
445	}
446	/* Trim spaces */
447	cp = bufp + strlen(bufp) - 1;
448	while (cp >= bufp && isspace((int)*cp)) {
449	*cp = '\0';
450	cp--;
451	}
452	len = name2oid(bufp, mib);
453
454	if (len < 0) {
455	if (iflag)
456	return (0);
457	if (qflag)
458	return (1);
459	else {
460	if (errno == ENOENT) {
461	warnx("unknown oid '%s'%s", bufp, line);
462	} else {
463	warn("unknown oid '%s'%s", bufp, line);
464	}
465	return (1);
466	}
467	}
468
469	if (oidfmt(mib, len, fmt, &kind)) {
470	warn("couldn't find format of oid '%s'%s", bufp, line);
471	if (iflag)
472	return (1);
473	else
474	exit(1);
475	}
476
477	if (newvalstr == NULL \|\| dflag) {
478	if ((kind & CTLTYPE) == CTLTYPE_NODE) {
479	if (dflag) {
480	i = show_var(mib, len);
481	if (!i && !bflag)
482	putchar('\n');
483	}
484	sysctl_all(mib, len);
485	} else {
486	i = show_var(mib, len);
487	if (!i && !bflag)
488	putchar('\n');
489	}
490	} else {
491	if ((kind & CTLTYPE) == CTLTYPE_NODE) {
492	warnx("oid '%s' isn't a leaf node%s", bufp, line);
493	return (1);
494	}
495
496	if (!(kind & CTLFLAG_WR)) {
497	if (kind & CTLFLAG_TUN) {
498	warnx("oid '%s' is a read only tunable%s", bufp, line);
499	warnx("Tunable values are set in /boot/loader.conf");
500	} else
501	warnx("oid '%s' is read only%s", bufp, line);
502	return (1);
503	}
504
505	switch (kind & CTLTYPE) {
506	case CTLTYPE_INT:
507	case CTLTYPE_UINT:
508	case CTLTYPE_LONG:
509	case CTLTYPE_ULONG:
510	case CTLTYPE_S8:
511	case CTLTYPE_S16:
512	case CTLTYPE_S32:
513	case CTLTYPE_S64:
514	case CTLTYPE_U8:
515	case CTLTYPE_U16:
516	case CTLTYPE_U32:
517	case CTLTYPE_U64:
518	if (strlen(newvalstr) == 0) {
519	warnx("empty numeric value");
520	return (1);
521	}
522	/* FALLTHROUGH */
523	case CTLTYPE_STRING:
524	break;
525	default:
526	warnx("oid '%s' is type %d,"
527	" cannot set that%s", bufp,
528	kind & CTLTYPE, line);
529	return (1);
530	}
531
532	newbuf = NULL;
533
534	switch (kind & CTLTYPE) {
535	case CTLTYPE_STRING:
536	newval = newvalstr;
537	break;
538	default:
539	newsize = 0;
540	while ((cp = strsep(&newvalstr, " ,")) != NULL) {
541	if (*cp == '\0')
542	continue;
543	if (!parse_numeric(cp, fmt, kind, &newbuf,
544	&newsize)) {
545	warnx("invalid %s '%s'%s",
546	ctl_typename[kind & CTLTYPE],
547	cp, line);
548	free(newbuf);
549	return (1);
550	}
551	}
552	newval = newbuf;
553	break;
554	}
555
556	i = show_var(mib, len);
557	if (sysctl(mib, len, 0, 0, newval, newsize) == -1) {
558	free(newbuf);
559	if (!i && !bflag)
560	putchar('\n');
561	switch (errno) {
562	case EOPNOTSUPP:
563	warnx("%s: value is not available%s",
564	string, line);
565	return (1);
566	case ENOTDIR:
567	warnx("%s: specification is incomplete%s",
568	string, line);
569	return (1);
570	case ENOMEM:
571	warnx("%s: type is unknown to this program%s",
572	string, line);
573	return (1);
574	default:
575	warn("%s%s", string, line);
576	return (1);
577	}
578	}
579	free(newbuf);
580	if (!bflag)
581	printf(" -> ");
582	i = nflag;
583	nflag = 1;
584	j = show_var(mib, len);
585	if (!j && !bflag)
586	putchar('\n');
587	nflag = i;
588	}
589
590	return (0);
591	}
592
593	static int
594	parsefile(const char *filename)
595	{
596	FILE *file;
597	char line[BUFSIZ], p, pq, *pdq;
598	int warncount = 0, lineno = 0;
599
600	file = fopen(filename, "r");
601	if (file == NULL)
602	err(EX_NOINPUT, "%s", filename);
603	while (fgets(line, sizeof(line), file) != NULL) {
604	lineno++;
605	p = line;
606	pq = strchr(line, '\'');
607	pdq = strchr(line, '\"');
608	/* Replace the first # with \0. */
609	while((p = strchr(p, '#')) != NULL) {
610	if (pq != NULL && p > pq) {
611	if ((p = strchr(pq+1, '\'')) != NULL)
612	*(++p) = '\0';
613	break;
614	} else if (pdq != NULL && p > pdq) {
615	if ((p = strchr(pdq+1, '\"')) != NULL)
616	*(++p) = '\0';
617	break;
618	} else if (p == line \|\| *(p-1) != '\\') {
619	*p = '\0';
620	break;
621	}
622	p++;
623	}
624	/* Trim spaces */
625	p = line + strlen(line) - 1;
626	while (p >= line && isspace((int)*p)) {
627	*p = '\0';
628	p--;
629	}
630	p = line;
631	while (isspace((int)*p))
632	p++;
633	if (*p == '\0')
634	continue;
635	else
636	warncount += parse(p, lineno);
637	}
638	fclose(file);
639
640	return (warncount);
641	}
642
643	/* These functions will dump out various interesting structures. */
644
645	#ifndef __rtems__
646	static int
647	S_clockinfo(size_t l2, void *p)
648	{
649	struct clockinfo ci = (struct clockinfo)p;
650
651	if (l2 != sizeof(*ci)) {
652	warnx("S_clockinfo %zu != %zu", l2, sizeof(*ci));
653	return (1);
654	}
655	printf(hflag ? "{ hz = %'d, tick = %'d, profhz = %'d, stathz = %'d }" :
656	"{ hz = %d, tick = %d, profhz = %d, stathz = %d }",
657	ci->hz, ci->tick, ci->profhz, ci->stathz);
658	return (0);
659	}
660	#endif /* __rtems__ */
661
662	static int
663	S_loadavg(size_t l2, void *p)
664	{
665	struct loadavg tv = (struct loadavg)p;
666
667	if (l2 != sizeof(*tv)) {
668	warnx("S_loadavg %zu != %zu", l2, sizeof(*tv));
669	return (1);
670	}
671	printf(hflag ? "{ %'.2f %'.2f %'.2f }" : "{ %.2f %.2f %.2f }",
672	(double)tv->ldavg[0]/(double)tv->fscale,
673	(double)tv->ldavg[1]/(double)tv->fscale,
674	(double)tv->ldavg[2]/(double)tv->fscale);
675	return (0);
676	}
677
678	static int
679	S_timeval(size_t l2, void *p)
680	{
681	struct timeval tv = (struct timeval)p;
682	time_t tv_sec;
683	char p1, p2;
684
685	if (l2 != sizeof(*tv)) {
686	warnx("S_timeval %zu != %zu", l2, sizeof(*tv));
687	return (1);
688	}
689	printf(hflag ? "{ sec = %'jd, usec = %'ld } " :
690	"{ sec = %jd, usec = %ld } ",
691	(intmax_t)tv->tv_sec, tv->tv_usec);
692	tv_sec = tv->tv_sec;
693	p1 = strdup(ctime(&tv_sec));
694	for (p2=p1; *p2 ; p2++)
695	if (*p2 == '\n')
696	*p2 = '\0';
697	fputs(p1, stdout);
698	free(p1);
699	return (0);
700	}
701
702	static int
703	S_vmtotal(size_t l2, void *p)
704	{
705	struct vmtotal *v;
706	int pageKilo;
707
708	if (l2 != sizeof(*v)) {
709	warnx("S_vmtotal %zu != %zu", l2, sizeof(*v));
710	return (1);
711	}
712
713	v = p;
714	pageKilo = getpagesize() / 1024;
715
716	#define pg2k(a) ((uintmax_t)(a) * pageKilo)
717	printf("\nSystem wide totals computed every five seconds:"
718	" (values in kilobytes)\n");
719	printf("===============================================\n");
720	printf("Processes:\t\t(RUNQ: %d Disk Wait: %d Page Wait: "
721	"%d Sleep: %d)\n",
722	v->t_rq, v->t_dw, v->t_pw, v->t_sl);
723	printf("Virtual Memory:\t\t(Total: %juK Active: %juK)\n",
724	pg2k(v->t_vm), pg2k(v->t_avm));
725	printf("Real Memory:\t\t(Total: %juK Active: %juK)\n",
726	pg2k(v->t_rm), pg2k(v->t_arm));
727	printf("Shared Virtual Memory:\t(Total: %juK Active: %juK)\n",
728	pg2k(v->t_vmshr), pg2k(v->t_avmshr));
729	printf("Shared Real Memory:\t(Total: %juK Active: %juK)\n",
730	pg2k(v->t_rmshr), pg2k(v->t_armshr));
731	printf("Free Memory:\t%juK", pg2k(v->t_free));
732	return (0);
733	}
734
735	static int
736	S_input_id(size_t l2, void *p)
737	{
738	struct input_id *id = p;
739
740	if (l2 != sizeof(*id)) {
741	warnx("S_input_id %zu != %zu", l2, sizeof(*id));
742	return (1);
743	}
744
745	printf("{ bustype = 0x%04x, vendor = 0x%04x, "
746	"product = 0x%04x, version = 0x%04x }",
747	id->bustype, id->vendor, id->product, id->version);
748	return (0);
749	}
750
751	#ifdef __amd64__
752	static int
753	S_efi_map(size_t l2, void *p)
754	{
755	struct efi_map_header *efihdr;
756	struct efi_md *map;
757	const char *type;
758	size_t efisz;
759	int ndesc, i;
760
761	static const char * const types[] = {
762	[EFI_MD_TYPE_NULL] = "Reserved",
763	[EFI_MD_TYPE_CODE] = "LoaderCode",
764	[EFI_MD_TYPE_DATA] = "LoaderData",
765	[EFI_MD_TYPE_BS_CODE] = "BootServicesCode",
766	[EFI_MD_TYPE_BS_DATA] = "BootServicesData",
767	[EFI_MD_TYPE_RT_CODE] = "RuntimeServicesCode",
768	[EFI_MD_TYPE_RT_DATA] = "RuntimeServicesData",
769	[EFI_MD_TYPE_FREE] = "ConventionalMemory",
770	[EFI_MD_TYPE_BAD] = "UnusableMemory",
771	[EFI_MD_TYPE_RECLAIM] = "ACPIReclaimMemory",
772	[EFI_MD_TYPE_FIRMWARE] = "ACPIMemoryNVS",
773	[EFI_MD_TYPE_IOMEM] = "MemoryMappedIO",
774	[EFI_MD_TYPE_IOPORT] = "MemoryMappedIOPortSpace",
775	[EFI_MD_TYPE_PALCODE] = "PalCode",
776	[EFI_MD_TYPE_PERSISTENT] = "PersistentMemory",
777	};
778
779	/*
780	* Memory map data provided by UEFI via the GetMemoryMap
781	* Boot Services API.
782	*/
783	if (l2 < sizeof(*efihdr)) {
784	warnx("S_efi_map length less than header");
785	return (1);
786	}
787	efihdr = p;
788	efisz = (sizeof(struct efi_map_header) + 0xf) & ~0xf;
789	map = (struct efi_md )((uint8_t )efihdr + efisz);
790
791	if (efihdr->descriptor_size == 0)
792	return (0);
793	if (l2 != efisz + efihdr->memory_size) {
794	warnx("S_efi_map length mismatch %zu vs %zu", l2, efisz +
795	efihdr->memory_size);
796	return (1);
797	}
798	ndesc = efihdr->memory_size / efihdr->descriptor_size;
799
800	printf("\n%23s %12s %12s %8s %4s",
801	"Type", "Physical", "Virtual", "#Pages", "Attr");
802
803	for (i = 0; i < ndesc; i++,
804	map = efi_next_descriptor(map, efihdr->descriptor_size)) {
805	type = NULL;
806	if (map->md_type < nitems(types))
807	type = types[map->md_type];
808	if (type == NULL)
809	type = "<INVALID>";
810	printf("\n%23s %012jx %12p %08jx ", type,
811	(uintmax_t)map->md_phys, map->md_virt,
812	(uintmax_t)map->md_pages);
813	if (map->md_attr & EFI_MD_ATTR_UC)
814	printf("UC ");
815	if (map->md_attr & EFI_MD_ATTR_WC)
816	printf("WC ");
817	if (map->md_attr & EFI_MD_ATTR_WT)
818	printf("WT ");
819	if (map->md_attr & EFI_MD_ATTR_WB)
820	printf("WB ");
821	if (map->md_attr & EFI_MD_ATTR_UCE)
822	printf("UCE ");
823	if (map->md_attr & EFI_MD_ATTR_WP)
824	printf("WP ");
825	if (map->md_attr & EFI_MD_ATTR_RP)
826	printf("RP ");
827	if (map->md_attr & EFI_MD_ATTR_XP)
828	printf("XP ");
829	if (map->md_attr & EFI_MD_ATTR_RT)
830	printf("RUNTIME");
831	}
832	return (0);
833	}
834	#endif
835
836	#if defined(__amd64__) \|\| defined(__i386__)
837	#ifndef __rtems__
838	static int
839	S_bios_smap_xattr(size_t l2, void *p)
840	{
841	struct bios_smap_xattr smap, end;
842
843	if (l2 % sizeof(*smap) != 0) {
844	warnx("S_bios_smap_xattr %zu is not a multiple of %zu", l2,
845	sizeof(*smap));
846	return (1);
847	}
848
849	end = (struct bios_smap_xattr )((char )p + l2);
850	for (smap = p; smap < end; smap++)
851	printf("\nSMAP type=%02x, xattr=%02x, base=%016jx, len=%016jx",
852	smap->type, smap->xattr, (uintmax_t)smap->base,
853	(uintmax_t)smap->length);
854	return (0);
855	}
856	#endif /* __rtems__ */
857	#endif
858
859	static int
860	strIKtoi(const char str, char endptrp, const char fmt)
861	{
862	int kelv;
863	float temp;
864	size_t len;
865	const char *p;
866	int prec, i;
867
868	assert(errno == 0);
869
870	len = strlen(str);
871	/* caller already checked this */
872	assert(len > 0);
873
874	/*
875	* A format of "IK" is in deciKelvin. A format of "IK3" is in
876	* milliKelvin. The single digit following IK is log10 of the
877	* multiplying factor to convert Kelvin into the untis of this sysctl,
878	* or the dividing factor to convert the sysctl value to Kelvin. Numbers
879	* larger than 6 will run into precision issues with 32-bit integers.
880	* Characters that aren't ASCII digits after the 'K' are ignored. No
881	* localization is present because this is an interface from the kernel
882	* to this program (eg not an end-user interface), so isdigit() isn't
883	* used here.
884	*/
885	if (fmt[2] != '\0' && fmt[2] >= '0' && fmt[2] <= '9')
886	prec = fmt[2] - '0';
887	else
888	prec = 1;
889	p = &str[len - 1];
890	if (p == 'C' \|\| p == 'F' \|\| *p == 'K') {
891	temp = strtof(str, endptrp);
892	if (endptrp != str && endptrp == p && errno == 0) {
893	if (*p == 'F')
894	temp = (temp - 32) * 5 / 9;
895	*endptrp = NULL;
896	if (*p != 'K')
897	temp += 273.15;
898	for (i = 0; i < prec; i++)
899	temp *= 10.0;
900	return ((int)(temp + 0.5));
901	}
902	} else {
903	/* No unit specified -> treat it as a raw number */
904	kelv = (int)strtol(str, endptrp, 10);
905	if (endptrp != str && endptrp == p && errno == 0) {
906	*endptrp = NULL;
907	return (kelv);
908	}
909	}
910
911	errno = ERANGE;
912	return (0);
913	}
914
915	/*
916	* These functions uses a presently undocumented interface to the kernel
917	* to walk the tree and get the type so it can print the value.
918	* This interface is under work and consideration, and should probably
919	* be killed with a big axe by the first person who can find the time.
920	* (be aware though, that the proper interface isn't as obvious as it
921	* may seem, there are various conflicting requirements.
922	*/
923
924	static int
925	name2oid(const char name, int oidp)
926	{
927	int oid[2];
928	int i;
929	size_t j;
930
931	oid[0] = 0;
932	oid[1] = 3;
933
934	j = CTL_MAXNAME * sizeof(int);
935	i = sysctl(oid, 2, oidp, &j, name, strlen(name));
936	if (i < 0)
937	return (i);
938	j /= sizeof(int);
939	return (j);
940	}
941
942	static int
943	oidfmt(int oid, int len, char fmt, u_int *kind)
944	{
945	int qoid[CTL_MAXNAME+2];
946	u_char buf[BUFSIZ];
947	int i;
948	size_t j;
949
950	qoid[0] = 0;
951	qoid[1] = 4;
952	memcpy(qoid + 2, oid, len * sizeof(int));
953
954	j = sizeof(buf);
955	i = sysctl(qoid, len + 2, buf, &j, 0, 0);
956	if (i)
957	err(1, "sysctl fmt %d %zu %d", i, j, errno);
958
959	if (kind)
960	kind = (u_int *)buf;
961
962	if (fmt)
963	strcpy(fmt, (char *)(buf + sizeof(u_int)));
964	return (0);
965	}
966
967	/*
968	* This formats and outputs the value of one variable
969	*
970	* Returns zero if anything was actually output.
971	* Returns one if didn't know what to do with this.
972	* Return minus one if we had errors.
973	*/
974	static int
975	show_var(int *oid, int nlen)
976	{
977	u_char buf[BUFSIZ], val, oval, *p;
978	char name[BUFSIZ], fmt[BUFSIZ];
979	const char sep, sep1, *prntype;
980	int qoid[CTL_MAXNAME+2];
981	uintmax_t umv;
982	intmax_t mv;
983	int i, hexlen, sign, ctltype;
984	size_t intlen;
985	size_t j, len;
986	u_int kind;
987	float base;
988	int (func)(size_t, void );
989	int prec;
990
991	/* Silence GCC. */
992	umv = mv = intlen = 0;
993
994	bzero(buf, BUFSIZ);
995	bzero(fmt, BUFSIZ);
996	bzero(name, BUFSIZ);
997	qoid[0] = 0;
998	memcpy(qoid + 2, oid, nlen * sizeof(int));
999
1000	qoid[1] = 1;
1001	j = sizeof(name);
1002	i = sysctl(qoid, nlen + 2, name, &j, 0, 0);
1003	if (i \|\| !j)
1004	err(1, "sysctl name %d %zu %d", i, j, errno);
1005
1006	oidfmt(oid, nlen, fmt, &kind);
1007	/* if Wflag then only list sysctls that are writeable and not stats. */
1008	if (Wflag && ((kind & CTLFLAG_WR) == 0 \|\| (kind & CTLFLAG_STATS) != 0))
1009	return 1;
1010
1011	/* if Tflag then only list sysctls that are tuneables. */
1012	if (Tflag && (kind & CTLFLAG_TUN) == 0)
1013	return 1;
1014
1015	if (Nflag) {
1016	printf("%s", name);
1017	return (0);
1018	}
1019
1020	if (eflag)
1021	sep = "=";
1022	else
1023	sep = ": ";
1024
1025	ctltype = (kind & CTLTYPE);
1026	if (tflag \|\| dflag) {
1027	if (!nflag)
1028	printf("%s%s", name, sep);
1029	if (ctl_typename[ctltype] != NULL)
1030	prntype = ctl_typename[ctltype];
1031	else
1032	prntype = "unknown";
1033	if (tflag && dflag)
1034	printf("%s%s", prntype, sep);
1035	else if (tflag) {
1036	printf("%s", prntype);
1037	return (0);
1038	}
1039	qoid[1] = 5;
1040	j = sizeof(buf);
1041	i = sysctl(qoid, nlen + 2, buf, &j, 0, 0);
1042	printf("%s", buf);
1043	return (0);
1044	}
1045
1046	/* don't fetch opaques that we don't know how to print */
1047	if (ctltype == CTLTYPE_OPAQUE) {
1048	if (strcmp(fmt, "S,clockinfo") == 0)
1049	#ifndef __rtems__
1050	func = S_clockinfo;
1051	#else /* __rtems__ */
1052	func = NULL;
1053	#endif /* __rtems__ */
1054	else if (strcmp(fmt, "S,timeval") == 0)
1055	func = S_timeval;
1056	else if (strcmp(fmt, "S,loadavg") == 0)
1057	func = S_loadavg;
1058	else if (strcmp(fmt, "S,vmtotal") == 0)
1059	func = S_vmtotal;
1060	else if (strcmp(fmt, "S,input_id") == 0)
1061	func = S_input_id;
1062	#ifdef __amd64__
1063	else if (strcmp(fmt, "S,efi_map_header") == 0)
1064	func = S_efi_map;
1065	#endif
1066	#if defined(__amd64__) \|\| defined(__i386__)
1067	else if (strcmp(fmt, "S,bios_smap_xattr") == 0)
1068	#ifndef __rtems__
1069	func = S_bios_smap_xattr;
1070	#else /* __rtems__ */
1071	func = NULL;
1072	#endif /* __rtems__ */
1073	#endif
1074	else {
1075	func = NULL;
1076	if (!bflag && !oflag && !xflag)
1077	return (1);
1078	}
1079	}
1080
1081	/* find an estimate of how much we need for this var */
1082	if (Bflag)
1083	j = Bflag;
1084	else {
1085	j = 0;
1086	i = sysctl(oid, nlen, 0, &j, 0, 0);
1087	j += j; /* we want to be sure :-) */
1088	}
1089
1090	val = oval = malloc(j + 1);
1091	if (val == NULL) {
1092	warnx("malloc failed");
1093	return (1);
1094	}
1095	len = j;
1096	i = sysctl(oid, nlen, val, &len, 0, 0);
1097	if (i != 0 \|\| (len == 0 && ctltype != CTLTYPE_STRING)) {
1098	free(oval);
1099	return (1);
1100	}
1101
1102	if (bflag) {
1103	fwrite(val, 1, len, stdout);
1104	free(oval);
1105	return (0);
1106	}
1107	val[len] = '\0';
1108	p = val;
1109	sign = ctl_sign[ctltype];
1110	intlen = ctl_size[ctltype];
1111
1112	switch (ctltype) {
1113	case CTLTYPE_STRING:
1114	if (!nflag)
1115	printf("%s%s", name, sep);
1116	printf("%.*s", (int)len, p);
1117	free(oval);
1118	return (0);
1119
1120	case CTLTYPE_INT:
1121	case CTLTYPE_UINT:
1122	case CTLTYPE_LONG:
1123	case CTLTYPE_ULONG:
1124	case CTLTYPE_S8:
1125	case CTLTYPE_S16:
1126	case CTLTYPE_S32:
1127	case CTLTYPE_S64:
1128	case CTLTYPE_U8:
1129	case CTLTYPE_U16:
1130	case CTLTYPE_U32:
1131	case CTLTYPE_U64:
1132	if (!nflag)
1133	printf("%s%s", name, sep);
1134	hexlen = 2 + (intlen * CHAR_BIT + 3) / 4;
1135	sep1 = "";
1136	while (len >= intlen) {
1137	switch (kind & CTLTYPE) {
1138	case CTLTYPE_INT:
1139	case CTLTYPE_UINT:
1140	umv = (u_int )p;
1141	mv = (int )p;
1142	break;
1143	case CTLTYPE_LONG:
1144	case CTLTYPE_ULONG:
1145	umv = (u_long )p;
1146	mv = (long )p;
1147	break;
1148	case CTLTYPE_S8:
1149	case CTLTYPE_U8:
1150	umv = (uint8_t )p;
1151	mv = (int8_t )p;
1152	break;
1153	case CTLTYPE_S16:
1154	case CTLTYPE_U16:
1155	umv = (uint16_t )p;
1156	mv = (int16_t )p;
1157	break;
1158	case CTLTYPE_S32:
1159	case CTLTYPE_U32:
1160	umv = (uint32_t )p;
1161	mv = (int32_t )p;
1162	break;
1163	case CTLTYPE_S64:
1164	case CTLTYPE_U64:
1165	umv = (uint64_t )p;
1166	mv = (int64_t )p;
1167	break;
1168	}
1169	fputs(sep1, stdout);
1170	if (xflag)
1171	printf("%#0*jx", hexlen, umv);
1172	else if (!sign)
1173	printf(hflag ? "%'ju" : "%ju", umv);
1174	else if (fmt[1] == 'K') {
1175	if (mv < 0)
1176	printf("%jd", mv);
1177	else {
1178	/*
1179	* See strIKtoi for details on fmt.
1180	*/
1181	prec = 1;
1182	if (fmt[2] != '\0')
1183	prec = fmt[2] - '0';
1184	base = 1.0;
1185	for (int i = 0; i < prec; i++)
1186	base *= 10.0;
1187	printf("%.*fC", prec,
1188	(float)mv / base - 273.15);
1189	}
1190	} else
1191	printf(hflag ? "%'jd" : "%jd", mv);
1192	sep1 = " ";
1193	len -= intlen;
1194	p += intlen;
1195	}
1196	free(oval);
1197	return (0);
1198
1199	case CTLTYPE_OPAQUE:
1200	i = 0;
1201	if (func) {
1202	if (!nflag)
1203	printf("%s%s", name, sep);
1204	i = (*func)(len, p);
1205	free(oval);
1206	return (i);
1207	}
1208	/* FALLTHROUGH */
1209	default:
1210	if (!oflag && !xflag) {
1211	free(oval);
1212	return (1);
1213	}
1214	if (!nflag)
1215	printf("%s%s", name, sep);
1216	printf("Format:%s Length:%zu Dump:0x", fmt, len);
1217	while (len-- && (xflag \|\| p < val + 16))
1218	printf("%02x", *p++);
1219	if (!xflag && len > 16)
1220	printf("...");
1221	free(oval);
1222	return (0);
1223	}
1224	free(oval);
1225	return (1);
1226	}
1227
1228	static int
1229	sysctl_all(int *oid, int len)
1230	{
1231	int name1[22], name2[22];
1232	int i, j;
1233	size_t l1, l2;
1234
1235	name1[0] = 0;
1236	name1[1] = 2;
1237	l1 = 2;
1238	if (len) {
1239	memcpy(name1+2, oid, len * sizeof(int));
1240	l1 += len;
1241	} else {
1242	name1[2] = 1;
1243	l1++;
1244	}
1245	for (;;) {
1246	l2 = sizeof(name2);
1247	j = sysctl(name1, l1, name2, &l2, 0, 0);
1248	if (j < 0) {
1249	if (errno == ENOENT)
1250	return (0);
1251	else
1252	err(1, "sysctl(getnext) %d %zu", j, l2);
1253	}
1254
1255	l2 /= sizeof(int);
1256
1257	if (len < 0 \|\| l2 < (unsigned int)len)
1258	return (0);
1259
1260	for (i = 0; i < len; i++)
1261	if (name2[i] != oid[i])
1262	return (0);
1263
1264	i = show_var(name2, l2);
1265	if (!i && !bflag)
1266	putchar('\n');
1267
1268	memcpy(name1+2, name2, l2 * sizeof(int));
1269	l1 = 2 + l2;
1270	}
1271	}

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source: rtems-libbsd/freebsd/sbin/sysctl/sysctl.c

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