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1 /*
2 * Copyright (c) 2000-2011 Apple Inc. All rights reserved.
3 *
4 * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
5 *
6 * This file contains Original Code and/or Modifications of Original Code
7 * as defined in and that are subject to the Apple Public Source License
8 * Version 2.0 (the 'License'). You may not use this file except in
9 * compliance with the License. The rights granted to you under the License
10 * may not be used to create, or enable the creation or redistribution of,
11 * unlawful or unlicensed copies of an Apple operating system, or to
12 * circumvent, violate, or enable the circumvention or violation of, any
13 * terms of an Apple operating system software license agreement.
14 *
15 * Please obtain a copy of the License at
16 * http://www.opensource.apple.com/apsl/ and read it before using this file.
17 *
18 * The Original Code and all software distributed under the License are
19 * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
20 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
21 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
22 * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
23 * Please see the License for the specific language governing rights and
24 * limitations under the License.
25 *
26 * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
27 */
28 /* Copyright (c) 1995 NeXT Computer, Inc. All Rights Reserved */
29 /*-
30 * Copyright (c) 1982, 1986, 1989, 1993
31 * The Regents of the University of California. All rights reserved.
32 *
33 * This code is derived from software contributed to Berkeley by
34 * Mike Karels at Berkeley Software Design, Inc.
35 *
36 * Redistribution and use in source and binary forms, with or without
37 * modification, are permitted provided that the following conditions
38 * are met:
39 * 1. Redistributions of source code must retain the above copyright
40 * notice, this list of conditions and the following disclaimer.
41 * 2. Redistributions in binary form must reproduce the above copyright
42 * notice, this list of conditions and the following disclaimer in the
43 * documentation and/or other materials provided with the distribution.
44 * 3. All advertising materials mentioning features or use of this software
45 * must display the following acknowledgement:
46 * This product includes software developed by the University of
47 * California, Berkeley and its contributors.
48 * 4. Neither the name of the University nor the names of its contributors
49 * may be used to endorse or promote products derived from this software
50 * without specific prior written permission.
51 *
52 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
53 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
54 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
55 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
56 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
57 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
58 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
59 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
60 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
61 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
62 * SUCH DAMAGE.
63 *
64 * @(#)kern_sysctl.c 8.4 (Berkeley) 4/14/94
65 */
66 /*
67 * NOTICE: This file was modified by SPARTA, Inc. in 2005 to introduce
68 * support for mandatory and extensible security protections. This notice
69 * is included in support of clause 2.2 (b) of the Apple Public License,
70 * Version 2.0.
71 */
72
73 /*
74 * DEPRECATED sysctl system call code
75 *
76 * Everything in this file is deprecated. Sysctls should be handled
77 * by the code in kern_newsysctl.c.
78 * The remaining "case" sections are supposed to be converted into
79 * SYSCTL_*-style definitions, and as soon as all of them are gone,
80 * this source file is supposed to die.
81 *
82 * DO NOT ADD ANY MORE "case" SECTIONS TO THIS FILE, instead define
83 * your sysctl with SYSCTL_INT, SYSCTL_PROC etc. in your source file.
84 */
85
86 #include <sys/param.h>
87 #include <sys/systm.h>
88 #include <sys/kernel.h>
89 #include <sys/malloc.h>
90 #include <sys/proc_internal.h>
91 #include <sys/kauth.h>
92 #include <sys/file_internal.h>
93 #include <sys/vnode_internal.h>
94 #include <sys/unistd.h>
95 #include <sys/buf.h>
96 #include <sys/ioctl.h>
97 #include <sys/namei.h>
98 #include <sys/tty.h>
99 #include <sys/disklabel.h>
100 #include <sys/vm.h>
101 #include <sys/sysctl.h>
102 #include <sys/user.h>
103 #include <sys/aio_kern.h>
104 #include <sys/reboot.h>
105 #include <sys/memory_maintenance.h>
106 #include <sys/priv.h>
107 #include <stdatomic.h>
108
109 #include <security/audit/audit.h>
110 #include <kern/kalloc.h>
111
112 #include <machine/smp.h>
113 #include <mach/machine.h>
114 #include <mach/mach_host.h>
115 #include <mach/mach_types.h>
116 #include <mach/processor_info.h>
117 #include <mach/vm_param.h>
118 #include <kern/debug.h>
119 #include <kern/mach_param.h>
120 #include <kern/task.h>
121 #include <kern/thread.h>
122 #include <kern/thread_group.h>
123 #include <kern/processor.h>
124 #include <kern/cpu_number.h>
125 #include <kern/debug.h>
126 #include <kern/sched_prim.h>
127 #include <vm/vm_kern.h>
128 #include <vm/vm_map.h>
129 #include <mach/host_info.h>
130
131 #include <sys/mount_internal.h>
132 #include <sys/kdebug.h>
133
134 #include <IOKit/IOPlatformExpert.h>
135 #include <pexpert/pexpert.h>
136
137 #include <machine/machine_routines.h>
138 #include <machine/exec.h>
139
140 #include <vm/vm_protos.h>
141 #include <vm/vm_pageout.h>
142 #include <vm/vm_compressor_algorithms.h>
143 #include <sys/imgsrc.h>
144 #include <kern/timer_call.h>
145
146 #if defined(__i386__) || defined(__x86_64__)
147 #include <i386/cpuid.h>
148 #endif
149
150 #if CONFIG_FREEZE
151 #include <sys/kern_memorystatus.h>
152 #endif
153
154 #if KPERF
155 #include <kperf/kperf.h>
156 #endif
157
158 #if HYPERVISOR
159 #include <kern/hv_support.h>
160 #endif
161
162 /*
163 * deliberately setting max requests to really high number
164 * so that runaway settings do not cause MALLOC overflows
165 */
166 #define AIO_MAX_REQUESTS (128 * CONFIG_AIO_MAX)
167
168 extern int aio_max_requests;
169 extern int aio_max_requests_per_process;
170 extern int aio_worker_threads;
171 extern int lowpri_IO_window_msecs;
172 extern int lowpri_IO_delay_msecs;
173 extern int nx_enabled;
174 extern int speculative_reads_disabled;
175 extern unsigned int speculative_prefetch_max;
176 extern unsigned int speculative_prefetch_max_iosize;
177 extern unsigned int preheat_max_bytes;
178 extern unsigned int preheat_min_bytes;
179 extern long numvnodes;
180
181 extern uuid_string_t bootsessionuuid_string;
182
183 extern unsigned int vm_max_delayed_work_limit;
184 extern unsigned int vm_max_batch;
185
186 extern unsigned int vm_page_free_min;
187 extern unsigned int vm_page_free_target;
188 extern unsigned int vm_page_free_reserved;
189 extern unsigned int vm_page_speculative_percentage;
190 extern unsigned int vm_page_speculative_q_age_ms;
191
192 #if (DEVELOPMENT || DEBUG)
193 extern uint32_t vm_page_creation_throttled_hard;
194 extern uint32_t vm_page_creation_throttled_soft;
195 #endif /* DEVELOPMENT || DEBUG */
196
197 /*
198 * Conditionally allow dtrace to see these functions for debugging purposes.
199 */
200 #ifdef STATIC
201 #undef STATIC
202 #endif
203 #if 0
204 #define STATIC
205 #else
206 #define STATIC static
207 #endif
208
209 extern boolean_t mach_timer_coalescing_enabled;
210
211 extern uint64_t timer_deadline_tracking_bin_1, timer_deadline_tracking_bin_2;
212
213 STATIC void
214 fill_user32_eproc(proc_t, struct user32_eproc *__restrict);
215 STATIC void
216 fill_user32_externproc(proc_t, struct user32_extern_proc *__restrict);
217 STATIC void
218 fill_user64_eproc(proc_t, struct user64_eproc *__restrict);
219 STATIC void
220 fill_user64_proc(proc_t, struct user64_kinfo_proc *__restrict);
221 STATIC void
222 fill_user64_externproc(proc_t, struct user64_extern_proc *__restrict);
223 STATIC void
224 fill_user32_proc(proc_t, struct user32_kinfo_proc *__restrict);
225
226 extern int
227 kdbg_control(int *name, u_int namelen, user_addr_t where, size_t * sizep);
228 #if NFSCLIENT
229 extern int
230 netboot_root(void);
231 #endif
232 int
233 pcsamples_ops(int *name, u_int namelen, user_addr_t where, size_t *sizep,
234 proc_t p);
235 int
236 sysctl_procargs(int *name, u_int namelen, user_addr_t where,
237 size_t *sizep, proc_t cur_proc);
238 STATIC int
239 sysctl_procargsx(int *name, u_int namelen, user_addr_t where, size_t *sizep,
240 proc_t cur_proc, int argc_yes);
241 int
242 sysctl_struct(user_addr_t oldp, size_t *oldlenp, user_addr_t newp,
243 size_t newlen, void *sp, int len);
244
245 STATIC int sysdoproc_filt_KERN_PROC_PID(proc_t p, void * arg);
246 STATIC int sysdoproc_filt_KERN_PROC_PGRP(proc_t p, void * arg);
247 STATIC int sysdoproc_filt_KERN_PROC_TTY(proc_t p, void * arg);
248 STATIC int sysdoproc_filt_KERN_PROC_UID(proc_t p, void * arg);
249 STATIC int sysdoproc_filt_KERN_PROC_RUID(proc_t p, void * arg);
250 int sysdoproc_callback(proc_t p, void *arg);
251
252
253 /* forward declarations for non-static STATIC */
254 STATIC void fill_loadavg64(struct loadavg *la, struct user64_loadavg *la64);
255 STATIC void fill_loadavg32(struct loadavg *la, struct user32_loadavg *la32);
256 STATIC int sysctl_handle_kern_threadname(struct sysctl_oid *oidp, void *arg1, int arg2, struct sysctl_req *req);
257 STATIC int sysctl_sched_stats(struct sysctl_oid *oidp, void *arg1, int arg2, struct sysctl_req *req);
258 STATIC int sysctl_sched_stats_enable(struct sysctl_oid *oidp, void *arg1, int arg2, struct sysctl_req *req);
259 STATIC int sysctl_kdebug_ops SYSCTL_HANDLER_ARGS;
260 #if COUNT_SYSCALLS
261 STATIC int sysctl_docountsyscalls SYSCTL_HANDLER_ARGS;
262 #endif /* COUNT_SYSCALLS */
263 #if !CONFIG_EMBEDDED
264 STATIC int sysctl_doprocargs SYSCTL_HANDLER_ARGS;
265 #endif /* !CONFIG_EMBEDDED */
266 STATIC int sysctl_doprocargs2 SYSCTL_HANDLER_ARGS;
267 STATIC int sysctl_prochandle SYSCTL_HANDLER_ARGS;
268 STATIC int sysctl_aiomax(struct sysctl_oid *oidp, void *arg1, int arg2, struct sysctl_req *req);
269 STATIC int sysctl_aioprocmax(struct sysctl_oid *oidp, void *arg1, int arg2, struct sysctl_req *req);
270 STATIC int sysctl_aiothreads(struct sysctl_oid *oidp, void *arg1, int arg2, struct sysctl_req *req);
271 STATIC int sysctl_maxproc(struct sysctl_oid *oidp, void *arg1, int arg2, struct sysctl_req *req);
272 STATIC int sysctl_osversion(struct sysctl_oid *oidp, void *arg1, int arg2, struct sysctl_req *req);
273 STATIC int sysctl_sysctl_bootargs(struct sysctl_oid *oidp, void *arg1, int arg2, struct sysctl_req *req);
274 STATIC int sysctl_maxvnodes(struct sysctl_oid *oidp, void *arg1, int arg2, struct sysctl_req *req);
275 STATIC int sysctl_securelvl(struct sysctl_oid *oidp, void *arg1, int arg2, struct sysctl_req *req);
276 STATIC int sysctl_domainname(struct sysctl_oid *oidp, void *arg1, int arg2, struct sysctl_req *req);
277 STATIC int sysctl_hostname(struct sysctl_oid *oidp, void *arg1, int arg2, struct sysctl_req *req);
278 STATIC int sysctl_procname(struct sysctl_oid *oidp, void *arg1, int arg2, struct sysctl_req *req);
279 STATIC int sysctl_boottime(struct sysctl_oid *oidp, void *arg1, int arg2, struct sysctl_req *req);
280 STATIC int sysctl_symfile(struct sysctl_oid *oidp, void *arg1, int arg2, struct sysctl_req *req);
281 #if NFSCLIENT
282 STATIC int sysctl_netboot(struct sysctl_oid *oidp, void *arg1, int arg2, struct sysctl_req *req);
283 #endif
284 #ifdef CONFIG_IMGSRC_ACCESS
285 STATIC int sysctl_imgsrcdev(struct sysctl_oid *oidp, void *arg1, int arg2, struct sysctl_req *req);
286 #endif
287 STATIC int sysctl_usrstack(struct sysctl_oid *oidp, void *arg1, int arg2, struct sysctl_req *req);
288 STATIC int sysctl_usrstack64(struct sysctl_oid *oidp, void *arg1, int arg2, struct sysctl_req *req);
289 #if CONFIG_COREDUMP
290 STATIC int sysctl_coredump(struct sysctl_oid *oidp, void *arg1, int arg2, struct sysctl_req *req);
291 STATIC int sysctl_suid_coredump(struct sysctl_oid *oidp, void *arg1, int arg2, struct sysctl_req *req);
292 #endif
293 STATIC int sysctl_delayterm(struct sysctl_oid *oidp, void *arg1, int arg2, struct sysctl_req *req);
294 STATIC int sysctl_rage_vnode(struct sysctl_oid *oidp, void *arg1, int arg2, struct sysctl_req *req);
295 STATIC int sysctl_kern_check_openevt(struct sysctl_oid *oidp, void *arg1, int arg2, struct sysctl_req *req);
296 STATIC int sysctl_nx(struct sysctl_oid *oidp, void *arg1, int arg2, struct sysctl_req *req);
297 STATIC int sysctl_loadavg(struct sysctl_oid *oidp, void *arg1, int arg2, struct sysctl_req *req);
298 STATIC int sysctl_vm_toggle_address_reuse(struct sysctl_oid *oidp, void *arg1, int arg2, struct sysctl_req *req);
299 STATIC int sysctl_swapusage(struct sysctl_oid *oidp, void *arg1, int arg2, struct sysctl_req *req);
300 STATIC int fetch_process_cputype( proc_t cur_proc, int *name, u_int namelen, cpu_type_t *cputype);
301 STATIC int sysctl_sysctl_native(struct sysctl_oid *oidp, void *arg1, int arg2, struct sysctl_req *req);
302 STATIC int sysctl_sysctl_cputype(struct sysctl_oid *oidp, void *arg1, int arg2, struct sysctl_req *req);
303 STATIC int sysctl_safeboot(struct sysctl_oid *oidp, void *arg1, int arg2, struct sysctl_req *req);
304 STATIC int sysctl_singleuser(struct sysctl_oid *oidp, void *arg1, int arg2, struct sysctl_req *req);
305 STATIC int sysctl_minimalboot(struct sysctl_oid *oidp, void *arg1, int arg2, struct sysctl_req *req);
306 STATIC int sysctl_slide(struct sysctl_oid *oidp, void *arg1, int arg2, struct sysctl_req *req);
307
308
309 extern void IORegistrySetOSBuildVersion(char * build_version);
310
311 STATIC void
312 fill_loadavg64(struct loadavg *la, struct user64_loadavg *la64)
313 {
314 la64->ldavg[0] = la->ldavg[0];
315 la64->ldavg[1] = la->ldavg[1];
316 la64->ldavg[2] = la->ldavg[2];
317 la64->fscale = (user64_long_t)la->fscale;
318 }
319
320 STATIC void
321 fill_loadavg32(struct loadavg *la, struct user32_loadavg *la32)
322 {
323 la32->ldavg[0] = la->ldavg[0];
324 la32->ldavg[1] = la->ldavg[1];
325 la32->ldavg[2] = la->ldavg[2];
326 la32->fscale = (user32_long_t)la->fscale;
327 }
328
329 #if CONFIG_COREDUMP
330 /*
331 * Attributes stored in the kernel.
332 */
333 extern char corefilename[MAXPATHLEN+1];
334 extern int do_coredump;
335 extern int sugid_coredump;
336 #endif
337
338 #if COUNT_SYSCALLS
339 extern int do_count_syscalls;
340 #endif
341
342 #ifdef INSECURE
343 int securelevel = -1;
344 #else
345 int securelevel;
346 #endif
347
348 STATIC int
349 sysctl_handle_kern_threadname( __unused struct sysctl_oid *oidp, __unused void *arg1,
350 __unused int arg2, struct sysctl_req *req)
351 {
352 int error;
353 struct uthread *ut = get_bsdthread_info(current_thread());
354 user_addr_t oldp=0, newp=0;
355 size_t *oldlenp=NULL;
356 size_t newlen=0;
357
358 oldp = req->oldptr;
359 oldlenp = &(req->oldlen);
360 newp = req->newptr;
361 newlen = req->newlen;
362
363 /* We want the current length, and maybe the string itself */
364 if(oldlenp) {
365 /* if we have no thread name yet tell'em we want MAXTHREADNAMESIZE - 1 */
366 size_t currlen = MAXTHREADNAMESIZE - 1;
367
368 if(ut->pth_name)
369 /* use length of current thread name */
370 currlen = strlen(ut->pth_name);
371 if(oldp) {
372 if(*oldlenp < currlen)
373 return ENOMEM;
374 /* NOTE - we do not copy the NULL terminator */
375 if(ut->pth_name) {
376 error = copyout(ut->pth_name,oldp,currlen);
377 if(error)
378 return error;
379 }
380 }
381 /* return length of thread name minus NULL terminator (just like strlen) */
382 req->oldidx = currlen;
383 }
384
385 /* We want to set the name to something */
386 if(newp)
387 {
388 if(newlen > (MAXTHREADNAMESIZE - 1))
389 return ENAMETOOLONG;
390 if(!ut->pth_name)
391 {
392 ut->pth_name = (char*)kalloc( MAXTHREADNAMESIZE );
393 if(!ut->pth_name)
394 return ENOMEM;
395 } else {
396 kernel_debug_string_simple(TRACE_STRING_THREADNAME_PREV, ut->pth_name);
397 }
398 bzero(ut->pth_name, MAXTHREADNAMESIZE);
399 error = copyin(newp, ut->pth_name, newlen);
400 if (error) {
401 return error;
402 }
403
404 kernel_debug_string_simple(TRACE_STRING_THREADNAME, ut->pth_name);
405 }
406
407 return 0;
408 }
409
410 SYSCTL_PROC(_kern, KERN_THREADNAME, threadname, CTLFLAG_ANYBODY | CTLTYPE_STRING | CTLFLAG_RW | CTLFLAG_LOCKED, 0, 0, sysctl_handle_kern_threadname,"A","");
411
412 #define BSD_HOST 1
413 STATIC int
414 sysctl_sched_stats(__unused struct sysctl_oid *oidp, __unused void *arg1, __unused int arg2, struct sysctl_req *req)
415 {
416 host_basic_info_data_t hinfo;
417 kern_return_t kret;
418 uint32_t size;
419 int changed;
420 mach_msg_type_number_t count = HOST_BASIC_INFO_COUNT;
421 struct _processor_statistics_np *buf;
422 int error;
423
424 kret = host_info((host_t)BSD_HOST, HOST_BASIC_INFO, (host_info_t)&hinfo, &count);
425 if (kret != KERN_SUCCESS) {
426 return EINVAL;
427 }
428
429 size = sizeof(struct _processor_statistics_np) * (hinfo.logical_cpu_max + 2); /* One for RT Queue, One for Fair Share Queue */
430
431 if (req->oldlen < size) {
432 return EINVAL;
433 }
434
435 MALLOC(buf, struct _processor_statistics_np*, size, M_TEMP, M_ZERO | M_WAITOK);
436
437 kret = get_sched_statistics(buf, &size);
438 if (kret != KERN_SUCCESS) {
439 error = EINVAL;
440 goto out;
441 }
442
443 error = sysctl_io_opaque(req, buf, size, &changed);
444 if (error) {
445 goto out;
446 }
447
448 if (changed) {
449 panic("Sched info changed?!");
450 }
451 out:
452 FREE(buf, M_TEMP);
453 return error;
454 }
455
456 SYSCTL_PROC(_kern, OID_AUTO, sched_stats, CTLFLAG_LOCKED, 0, 0, sysctl_sched_stats, "-", "");
457
458 STATIC int
459 sysctl_sched_stats_enable(__unused struct sysctl_oid *oidp, __unused void *arg1, __unused int arg2, __unused struct sysctl_req *req)
460 {
461 boolean_t active;
462 int res;
463
464 if (req->newlen != sizeof(active)) {
465 return EINVAL;
466 }
467
468 res = copyin(req->newptr, &active, sizeof(active));
469 if (res != 0) {
470 return res;
471 }
472
473 return set_sched_stats_active(active);
474 }
475
476 SYSCTL_PROC(_kern, OID_AUTO, sched_stats_enable, CTLFLAG_LOCKED | CTLFLAG_WR, 0, 0, sysctl_sched_stats_enable, "-", "");
477
478 extern uint32_t sched_debug_flags;
479 SYSCTL_INT(_debug, OID_AUTO, sched, CTLFLAG_RW | CTLFLAG_LOCKED, &sched_debug_flags, 0, "scheduler debug");
480
481 #if (DEBUG || DEVELOPMENT)
482 extern boolean_t doprnt_hide_pointers;
483 SYSCTL_INT(_debug, OID_AUTO, hide_kernel_pointers, CTLFLAG_RW | CTLFLAG_LOCKED, &doprnt_hide_pointers, 0, "hide kernel pointers from log");
484 #endif
485
486 extern int get_kernel_symfile(proc_t, char **);
487
488 #if COUNT_SYSCALLS
489 #define KERN_COUNT_SYSCALLS (KERN_OSTYPE + 1000)
490
491 extern unsigned int nsysent;
492 extern int syscalls_log[];
493 extern const char *syscallnames[];
494
495 STATIC int
496 sysctl_docountsyscalls SYSCTL_HANDLER_ARGS
497 {
498 __unused int cmd = oidp->oid_arg2; /* subcommand*/
499 __unused int *name = arg1; /* oid element argument vector */
500 __unused int namelen = arg2; /* number of oid element arguments */
501 user_addr_t oldp = req->oldptr; /* user buffer copy out address */
502 size_t *oldlenp = &req->oldlen; /* user buffer copy out size */
503 user_addr_t newp = req->newptr; /* user buffer copy in address */
504 size_t newlen = req->newlen; /* user buffer copy in size */
505 int error;
506
507 int tmp;
508
509 /* valid values passed in:
510 * = 0 means don't keep called counts for each bsd syscall
511 * > 0 means keep called counts for each bsd syscall
512 * = 2 means dump current counts to the system log
513 * = 3 means reset all counts
514 * for example, to dump current counts:
515 * sysctl -w kern.count_calls=2
516 */
517 error = sysctl_int(oldp, oldlenp, newp, newlen, &tmp);
518 if ( error != 0 ) {
519 return (error);
520 }
521
522 if ( tmp == 1 ) {
523 do_count_syscalls = 1;
524 }
525 else if ( tmp == 0 || tmp == 2 || tmp == 3 ) {
526 int i;
527 for ( i = 0; i < nsysent; i++ ) {
528 if ( syscalls_log[i] != 0 ) {
529 if ( tmp == 2 ) {
530 printf("%d calls - name %s \n", syscalls_log[i], syscallnames[i]);
531 }
532 else {
533 syscalls_log[i] = 0;
534 }
535 }
536 }
537 if ( tmp != 0 ) {
538 do_count_syscalls = 1;
539 }
540 }
541
542 /* adjust index so we return the right required/consumed amount */
543 if (!error)
544 req->oldidx += req->oldlen;
545
546 return (error);
547 }
548 SYSCTL_PROC(_kern, KERN_COUNT_SYSCALLS, count_syscalls, CTLTYPE_NODE|CTLFLAG_RD | CTLFLAG_LOCKED,
549 0, /* Pointer argument (arg1) */
550 0, /* Integer argument (arg2) */
551 sysctl_docountsyscalls, /* Handler function */
552 NULL, /* Data pointer */
553 "");
554 #endif /* COUNT_SYSCALLS */
555
556 /*
557 * The following sysctl_* functions should not be used
558 * any more, as they can only cope with callers in
559 * user mode: Use new-style
560 * sysctl_io_number()
561 * sysctl_io_string()
562 * sysctl_io_opaque()
563 * instead.
564 */
565
566 /*
567 * Validate parameters and get old / set new parameters
568 * for an integer-valued sysctl function.
569 */
570 int
571 sysctl_int(user_addr_t oldp, size_t *oldlenp,
572 user_addr_t newp, size_t newlen, int *valp)
573 {
574 int error = 0;
575
576 if (oldp != USER_ADDR_NULL && oldlenp == NULL)
577 return (EFAULT);
578 if (oldp && *oldlenp < sizeof(int))
579 return (ENOMEM);
580 if (newp && newlen != sizeof(int))
581 return (EINVAL);
582 *oldlenp = sizeof(int);
583 if (oldp)
584 error = copyout(valp, oldp, sizeof(int));
585 if (error == 0 && newp) {
586 error = copyin(newp, valp, sizeof(int));
587 AUDIT_ARG(value32, *valp);
588 }
589 return (error);
590 }
591
592 /*
593 * Validate parameters and get old / set new parameters
594 * for an quad(64bit)-valued sysctl function.
595 */
596 int
597 sysctl_quad(user_addr_t oldp, size_t *oldlenp,
598 user_addr_t newp, size_t newlen, quad_t *valp)
599 {
600 int error = 0;
601
602 if (oldp != USER_ADDR_NULL && oldlenp == NULL)
603 return (EFAULT);
604 if (oldp && *oldlenp < sizeof(quad_t))
605 return (ENOMEM);
606 if (newp && newlen != sizeof(quad_t))
607 return (EINVAL);
608 *oldlenp = sizeof(quad_t);
609 if (oldp)
610 error = copyout(valp, oldp, sizeof(quad_t));
611 if (error == 0 && newp)
612 error = copyin(newp, valp, sizeof(quad_t));
613 return (error);
614 }
615
616 STATIC int
617 sysdoproc_filt_KERN_PROC_PID(proc_t p, void * arg)
618 {
619 if (p->p_pid != (pid_t)*(int*)arg)
620 return(0);
621 else
622 return(1);
623 }
624
625 STATIC int
626 sysdoproc_filt_KERN_PROC_PGRP(proc_t p, void * arg)
627 {
628 if (p->p_pgrpid != (pid_t)*(int*)arg)
629 return(0);
630 else
631 return(1);
632 }
633
634 STATIC int
635 sysdoproc_filt_KERN_PROC_TTY(proc_t p, void * arg)
636 {
637 int retval;
638 struct tty *tp;
639
640 /* This is very racy but list lock is held.. Hmmm. */
641 if ((p->p_flag & P_CONTROLT) == 0 ||
642 (p->p_pgrp == NULL) || (p->p_pgrp->pg_session == NULL) ||
643 (tp = SESSION_TP(p->p_pgrp->pg_session)) == TTY_NULL ||
644 tp->t_dev != (dev_t)*(int*)arg)
645 retval = 0;
646 else
647 retval = 1;
648
649 return(retval);
650 }
651
652 STATIC int
653 sysdoproc_filt_KERN_PROC_UID(proc_t p, void * arg)
654 {
655 kauth_cred_t my_cred;
656 uid_t uid;
657
658 if (p->p_ucred == NULL)
659 return(0);
660 my_cred = kauth_cred_proc_ref(p);
661 uid = kauth_cred_getuid(my_cred);
662 kauth_cred_unref(&my_cred);
663
664 if (uid != (uid_t)*(int*)arg)
665 return(0);
666 else
667 return(1);
668 }
669
670
671 STATIC int
672 sysdoproc_filt_KERN_PROC_RUID(proc_t p, void * arg)
673 {
674 kauth_cred_t my_cred;
675 uid_t ruid;
676
677 if (p->p_ucred == NULL)
678 return(0);
679 my_cred = kauth_cred_proc_ref(p);
680 ruid = kauth_cred_getruid(my_cred);
681 kauth_cred_unref(&my_cred);
682
683 if (ruid != (uid_t)*(int*)arg)
684 return(0);
685 else
686 return(1);
687 }
688
689 /*
690 * try over estimating by 5 procs
691 */
692 #define KERN_PROCSLOP (5 * sizeof (struct kinfo_proc))
693 struct sysdoproc_args {
694 int buflen;
695 void *kprocp;
696 boolean_t is_64_bit;
697 user_addr_t dp;
698 size_t needed;
699 int sizeof_kproc;
700 int *errorp;
701 int uidcheck;
702 int ruidcheck;
703 int ttycheck;
704 int uidval;
705 };
706
707 int
708 sysdoproc_callback(proc_t p, void *arg)
709 {
710 struct sysdoproc_args *args = arg;
711
712 if (args->buflen >= args->sizeof_kproc) {
713 if ((args->ruidcheck != 0) && (sysdoproc_filt_KERN_PROC_RUID(p, &args->uidval) == 0))
714 return (PROC_RETURNED);
715 if ((args->uidcheck != 0) && (sysdoproc_filt_KERN_PROC_UID(p, &args->uidval) == 0))
716 return (PROC_RETURNED);
717 if ((args->ttycheck != 0) && (sysdoproc_filt_KERN_PROC_TTY(p, &args->uidval) == 0))
718 return (PROC_RETURNED);
719
720 bzero(args->kprocp, args->sizeof_kproc);
721 if (args->is_64_bit)
722 fill_user64_proc(p, args->kprocp);
723 else
724 fill_user32_proc(p, args->kprocp);
725 int error = copyout(args->kprocp, args->dp, args->sizeof_kproc);
726 if (error) {
727 *args->errorp = error;
728 return (PROC_RETURNED_DONE);
729 }
730 args->dp += args->sizeof_kproc;
731 args->buflen -= args->sizeof_kproc;
732 }
733 args->needed += args->sizeof_kproc;
734 return (PROC_RETURNED);
735 }
736
737 SYSCTL_NODE(_kern, KERN_PROC, proc, CTLFLAG_RD | CTLFLAG_LOCKED, 0, "");
738 STATIC int
739 sysctl_prochandle SYSCTL_HANDLER_ARGS
740 {
741 int cmd = oidp->oid_arg2; /* subcommand for multiple nodes */
742 int *name = arg1; /* oid element argument vector */
743 int namelen = arg2; /* number of oid element arguments */
744 user_addr_t where = req->oldptr;/* user buffer copy out address */
745
746 user_addr_t dp = where;
747 size_t needed = 0;
748 int buflen = where != USER_ADDR_NULL ? req->oldlen : 0;
749 int error = 0;
750 boolean_t is_64_bit = proc_is64bit(current_proc());
751 struct user32_kinfo_proc user32_kproc;
752 struct user64_kinfo_proc user_kproc;
753 int sizeof_kproc;
754 void *kprocp;
755 int (*filterfn)(proc_t, void *) = 0;
756 struct sysdoproc_args args;
757 int uidcheck = 0;
758 int ruidcheck = 0;
759 int ttycheck = 0;
760 int success = 0;
761
762 if (namelen != 1 && !(namelen == 0 && cmd == KERN_PROC_ALL))
763 return (EINVAL);
764
765 if (is_64_bit) {
766 sizeof_kproc = sizeof(user_kproc);
767 kprocp = &user_kproc;
768 } else {
769 sizeof_kproc = sizeof(user32_kproc);
770 kprocp = &user32_kproc;
771 }
772
773 switch (cmd) {
774
775 case KERN_PROC_PID:
776 filterfn = sysdoproc_filt_KERN_PROC_PID;
777 break;
778
779 case KERN_PROC_PGRP:
780 filterfn = sysdoproc_filt_KERN_PROC_PGRP;
781 break;
782
783 case KERN_PROC_TTY:
784 ttycheck = 1;
785 break;
786
787 case KERN_PROC_UID:
788 uidcheck = 1;
789 break;
790
791 case KERN_PROC_RUID:
792 ruidcheck = 1;
793 break;
794
795 case KERN_PROC_ALL:
796 break;
797
798 default:
799 /* must be kern.proc.<unknown> */
800 return (ENOTSUP);
801 }
802
803 error = 0;
804 args.buflen = buflen;
805 args.kprocp = kprocp;
806 args.is_64_bit = is_64_bit;
807 args.dp = dp;
808 args.needed = needed;
809 args.errorp = &error;
810 args.uidcheck = uidcheck;
811 args.ruidcheck = ruidcheck;
812 args.ttycheck = ttycheck;
813 args.sizeof_kproc = sizeof_kproc;
814 if (namelen)
815 args.uidval = name[0];
816
817 success = proc_iterate((PROC_ALLPROCLIST | PROC_ZOMBPROCLIST),
818 sysdoproc_callback, &args, filterfn, name);
819
820 /*
821 * rdar://problem/28433391: if we can't iterate over the processes,
822 * make sure to return an error.
823 */
824
825 if (success != 0)
826 return (ENOMEM);
827
828 if (error)
829 return (error);
830
831 dp = args.dp;
832 needed = args.needed;
833
834 if (where != USER_ADDR_NULL) {
835 req->oldlen = dp - where;
836 if (needed > req->oldlen)
837 return (ENOMEM);
838 } else {
839 needed += KERN_PROCSLOP;
840 req->oldlen = needed;
841 }
842 /* adjust index so we return the right required/consumed amount */
843 req->oldidx += req->oldlen;
844 return (0);
845 }
846
847 /*
848 * We specify the subcommand code for multiple nodes as the 'req->arg2' value
849 * in the sysctl declaration itself, which comes into the handler function
850 * as 'oidp->oid_arg2'.
851 *
852 * For these particular sysctls, since they have well known OIDs, we could
853 * have just obtained it from the '((int *)arg1)[0]' parameter, but that would
854 * not demonstrate how to handle multiple sysctls that used OID_AUTO instead
855 * of a well known value with a common handler function. This is desirable,
856 * because we want well known values to "go away" at some future date.
857 *
858 * It should be noted that the value of '((int *)arg1)[1]' is used for many
859 * an integer parameter to the subcommand for many of these sysctls; we'd
860 * rather have used '((int *)arg1)[0]' for that, or even better, an element
861 * in a structure passed in as the the 'newp' argument to sysctlbyname(3),
862 * and then use leaf-node permissions enforcement, but that would have
863 * necessitated modifying user space code to correspond to the interface
864 * change, and we are striving for binary backward compatibility here; even
865 * though these are SPI, and not intended for use by user space applications
866 * which are not themselves system tools or libraries, some applications
867 * have erroneously used them.
868 */
869 SYSCTL_PROC(_kern_proc, KERN_PROC_ALL, all, CTLTYPE_NODE|CTLFLAG_RD | CTLFLAG_LOCKED,
870 0, /* Pointer argument (arg1) */
871 KERN_PROC_ALL, /* Integer argument (arg2) */
872 sysctl_prochandle, /* Handler function */
873 NULL, /* Data is size variant on ILP32/LP64 */
874 "");
875 SYSCTL_PROC(_kern_proc, KERN_PROC_PID, pid, CTLTYPE_NODE|CTLFLAG_RD | CTLFLAG_LOCKED,
876 0, /* Pointer argument (arg1) */
877 KERN_PROC_PID, /* Integer argument (arg2) */
878 sysctl_prochandle, /* Handler function */
879 NULL, /* Data is size variant on ILP32/LP64 */
880 "");
881 SYSCTL_PROC(_kern_proc, KERN_PROC_TTY, tty, CTLTYPE_NODE|CTLFLAG_RD | CTLFLAG_LOCKED,
882 0, /* Pointer argument (arg1) */
883 KERN_PROC_TTY, /* Integer argument (arg2) */
884 sysctl_prochandle, /* Handler function */
885 NULL, /* Data is size variant on ILP32/LP64 */
886 "");
887 SYSCTL_PROC(_kern_proc, KERN_PROC_PGRP, pgrp, CTLTYPE_NODE|CTLFLAG_RD | CTLFLAG_LOCKED,
888 0, /* Pointer argument (arg1) */
889 KERN_PROC_PGRP, /* Integer argument (arg2) */
890 sysctl_prochandle, /* Handler function */
891 NULL, /* Data is size variant on ILP32/LP64 */
892 "");
893 SYSCTL_PROC(_kern_proc, KERN_PROC_UID, uid, CTLTYPE_NODE|CTLFLAG_RD | CTLFLAG_LOCKED,
894 0, /* Pointer argument (arg1) */
895 KERN_PROC_UID, /* Integer argument (arg2) */
896 sysctl_prochandle, /* Handler function */
897 NULL, /* Data is size variant on ILP32/LP64 */
898 "");
899 SYSCTL_PROC(_kern_proc, KERN_PROC_RUID, ruid, CTLTYPE_NODE|CTLFLAG_RD | CTLFLAG_LOCKED,
900 0, /* Pointer argument (arg1) */
901 KERN_PROC_RUID, /* Integer argument (arg2) */
902 sysctl_prochandle, /* Handler function */
903 NULL, /* Data is size variant on ILP32/LP64 */
904 "");
905 SYSCTL_PROC(_kern_proc, KERN_PROC_LCID, lcid, CTLTYPE_NODE|CTLFLAG_RD | CTLFLAG_LOCKED,
906 0, /* Pointer argument (arg1) */
907 KERN_PROC_LCID, /* Integer argument (arg2) */
908 sysctl_prochandle, /* Handler function */
909 NULL, /* Data is size variant on ILP32/LP64 */
910 "");
911
912
913 /*
914 * Fill in non-zero fields of an eproc structure for the specified process.
915 */
916 STATIC void
917 fill_user32_eproc(proc_t p, struct user32_eproc *__restrict ep)
918 {
919 struct tty *tp;
920 struct pgrp *pg;
921 struct session *sessp;
922 kauth_cred_t my_cred;
923
924 pg = proc_pgrp(p);
925 sessp = proc_session(p);
926
927 if (pg != PGRP_NULL) {
928 ep->e_pgid = p->p_pgrpid;
929 ep->e_jobc = pg->pg_jobc;
930 if (sessp != SESSION_NULL && sessp->s_ttyvp)
931 ep->e_flag = EPROC_CTTY;
932 }
933 ep->e_ppid = p->p_ppid;
934 if (p->p_ucred) {
935 my_cred = kauth_cred_proc_ref(p);
936
937 /* A fake historical pcred */
938 ep->e_pcred.p_ruid = kauth_cred_getruid(my_cred);
939 ep->e_pcred.p_svuid = kauth_cred_getsvuid(my_cred);
940 ep->e_pcred.p_rgid = kauth_cred_getrgid(my_cred);
941 ep->e_pcred.p_svgid = kauth_cred_getsvgid(my_cred);
942
943 /* A fake historical *kauth_cred_t */
944 ep->e_ucred.cr_ref = my_cred->cr_ref;
945 ep->e_ucred.cr_uid = kauth_cred_getuid(my_cred);
946 ep->e_ucred.cr_ngroups = posix_cred_get(my_cred)->cr_ngroups;
947 bcopy(posix_cred_get(my_cred)->cr_groups,
948 ep->e_ucred.cr_groups, NGROUPS * sizeof (gid_t));
949
950 kauth_cred_unref(&my_cred);
951 }
952
953 if ((p->p_flag & P_CONTROLT) && (sessp != SESSION_NULL) &&
954 (tp = SESSION_TP(sessp))) {
955 ep->e_tdev = tp->t_dev;
956 ep->e_tpgid = sessp->s_ttypgrpid;
957 } else
958 ep->e_tdev = NODEV;
959
960 if (sessp != SESSION_NULL) {
961 if (SESS_LEADER(p, sessp))
962 ep->e_flag |= EPROC_SLEADER;
963 session_rele(sessp);
964 }
965 if (pg != PGRP_NULL)
966 pg_rele(pg);
967 }
968
969 /*
970 * Fill in non-zero fields of an LP64 eproc structure for the specified process.
971 */
972 STATIC void
973 fill_user64_eproc(proc_t p, struct user64_eproc *__restrict ep)
974 {
975 struct tty *tp;
976 struct pgrp *pg;
977 struct session *sessp;
978 kauth_cred_t my_cred;
979
980 pg = proc_pgrp(p);
981 sessp = proc_session(p);
982
983 if (pg != PGRP_NULL) {
984 ep->e_pgid = p->p_pgrpid;
985 ep->e_jobc = pg->pg_jobc;
986 if (sessp != SESSION_NULL && sessp->s_ttyvp)
987 ep->e_flag = EPROC_CTTY;
988 }
989 ep->e_ppid = p->p_ppid;
990 if (p->p_ucred) {
991 my_cred = kauth_cred_proc_ref(p);
992
993 /* A fake historical pcred */
994 ep->e_pcred.p_ruid = kauth_cred_getruid(my_cred);
995 ep->e_pcred.p_svuid = kauth_cred_getsvuid(my_cred);
996 ep->e_pcred.p_rgid = kauth_cred_getrgid(my_cred);
997 ep->e_pcred.p_svgid = kauth_cred_getsvgid(my_cred);
998
999 /* A fake historical *kauth_cred_t */
1000 ep->e_ucred.cr_ref = my_cred->cr_ref;
1001 ep->e_ucred.cr_uid = kauth_cred_getuid(my_cred);
1002 ep->e_ucred.cr_ngroups = posix_cred_get(my_cred)->cr_ngroups;
1003 bcopy(posix_cred_get(my_cred)->cr_groups,
1004 ep->e_ucred.cr_groups, NGROUPS * sizeof (gid_t));
1005
1006 kauth_cred_unref(&my_cred);
1007 }
1008
1009 if ((p->p_flag & P_CONTROLT) && (sessp != SESSION_NULL) &&
1010 (tp = SESSION_TP(sessp))) {
1011 ep->e_tdev = tp->t_dev;
1012 ep->e_tpgid = sessp->s_ttypgrpid;
1013 } else
1014 ep->e_tdev = NODEV;
1015
1016 if (sessp != SESSION_NULL) {
1017 if (SESS_LEADER(p, sessp))
1018 ep->e_flag |= EPROC_SLEADER;
1019 session_rele(sessp);
1020 }
1021 if (pg != PGRP_NULL)
1022 pg_rele(pg);
1023 }
1024
1025 /*
1026 * Fill in an eproc structure for the specified process.
1027 * bzeroed by our caller, so only set non-zero fields.
1028 */
1029 STATIC void
1030 fill_user32_externproc(proc_t p, struct user32_extern_proc *__restrict exp)
1031 {
1032 exp->p_starttime.tv_sec = p->p_start.tv_sec;
1033 exp->p_starttime.tv_usec = p->p_start.tv_usec;
1034 exp->p_flag = p->p_flag;
1035 if (p->p_lflag & P_LTRACED)
1036 exp->p_flag |= P_TRACED;
1037 if (p->p_lflag & P_LPPWAIT)
1038 exp->p_flag |= P_PPWAIT;
1039 if (p->p_lflag & P_LEXIT)
1040 exp->p_flag |= P_WEXIT;
1041 exp->p_stat = p->p_stat;
1042 exp->p_pid = p->p_pid;
1043 exp->p_oppid = p->p_oppid;
1044 /* Mach related */
1045 exp->user_stack = p->user_stack;
1046 exp->p_debugger = p->p_debugger;
1047 exp->sigwait = p->sigwait;
1048 /* scheduling */
1049 #ifdef _PROC_HAS_SCHEDINFO_
1050 exp->p_estcpu = p->p_estcpu;
1051 exp->p_pctcpu = p->p_pctcpu;
1052 exp->p_slptime = p->p_slptime;
1053 #endif
1054 exp->p_realtimer.it_interval.tv_sec =
1055 (user32_time_t)p->p_realtimer.it_interval.tv_sec;
1056 exp->p_realtimer.it_interval.tv_usec =
1057 (__int32_t)p->p_realtimer.it_interval.tv_usec;
1058
1059 exp->p_realtimer.it_value.tv_sec =
1060 (user32_time_t)p->p_realtimer.it_value.tv_sec;
1061 exp->p_realtimer.it_value.tv_usec =
1062 (__int32_t)p->p_realtimer.it_value.tv_usec;
1063
1064 exp->p_rtime.tv_sec = (user32_time_t)p->p_rtime.tv_sec;
1065 exp->p_rtime.tv_usec = (__int32_t)p->p_rtime.tv_usec;
1066
1067 exp->p_sigignore = p->p_sigignore;
1068 exp->p_sigcatch = p->p_sigcatch;
1069 exp->p_priority = p->p_priority;
1070 exp->p_nice = p->p_nice;
1071 bcopy(&p->p_comm, &exp->p_comm, MAXCOMLEN);
1072 exp->p_xstat = p->p_xstat;
1073 exp->p_acflag = p->p_acflag;
1074 }
1075
1076 /*
1077 * Fill in an LP64 version of extern_proc structure for the specified process.
1078 */
1079 STATIC void
1080 fill_user64_externproc(proc_t p, struct user64_extern_proc *__restrict exp)
1081 {
1082 exp->p_starttime.tv_sec = p->p_start.tv_sec;
1083 exp->p_starttime.tv_usec = p->p_start.tv_usec;
1084 exp->p_flag = p->p_flag;
1085 if (p->p_lflag & P_LTRACED)
1086 exp->p_flag |= P_TRACED;
1087 if (p->p_lflag & P_LPPWAIT)
1088 exp->p_flag |= P_PPWAIT;
1089 if (p->p_lflag & P_LEXIT)
1090 exp->p_flag |= P_WEXIT;
1091 exp->p_stat = p->p_stat;
1092 exp->p_pid = p->p_pid;
1093 exp->p_oppid = p->p_oppid;
1094 /* Mach related */
1095 exp->user_stack = p->user_stack;
1096 exp->p_debugger = p->p_debugger;
1097 exp->sigwait = p->sigwait;
1098 /* scheduling */
1099 #ifdef _PROC_HAS_SCHEDINFO_
1100 exp->p_estcpu = p->p_estcpu;
1101 exp->p_pctcpu = p->p_pctcpu;
1102 exp->p_slptime = p->p_slptime;
1103 #endif
1104 exp->p_realtimer.it_interval.tv_sec = p->p_realtimer.it_interval.tv_sec;
1105 exp->p_realtimer.it_interval.tv_usec = p->p_realtimer.it_interval.tv_usec;
1106
1107 exp->p_realtimer.it_value.tv_sec = p->p_realtimer.it_value.tv_sec;
1108 exp->p_realtimer.it_value.tv_usec = p->p_realtimer.it_value.tv_usec;
1109
1110 exp->p_rtime.tv_sec = p->p_rtime.tv_sec;
1111 exp->p_rtime.tv_usec = p->p_rtime.tv_usec;
1112
1113 exp->p_sigignore = p->p_sigignore;
1114 exp->p_sigcatch = p->p_sigcatch;
1115 exp->p_priority = p->p_priority;
1116 exp->p_nice = p->p_nice;
1117 bcopy(&p->p_comm, &exp->p_comm, MAXCOMLEN);
1118 exp->p_xstat = p->p_xstat;
1119 exp->p_acflag = p->p_acflag;
1120 }
1121
1122 STATIC void
1123 fill_user32_proc(proc_t p, struct user32_kinfo_proc *__restrict kp)
1124 {
1125 /* on a 64 bit kernel, 32 bit users get some truncated information */
1126 fill_user32_externproc(p, &kp->kp_proc);
1127 fill_user32_eproc(p, &kp->kp_eproc);
1128 }
1129
1130 STATIC void
1131 fill_user64_proc(proc_t p, struct user64_kinfo_proc *__restrict kp)
1132 {
1133 fill_user64_externproc(p, &kp->kp_proc);
1134 fill_user64_eproc(p, &kp->kp_eproc);
1135 }
1136
1137 STATIC int
1138 sysctl_kdebug_ops SYSCTL_HANDLER_ARGS
1139 {
1140 __unused int cmd = oidp->oid_arg2; /* subcommand*/
1141 int *name = arg1; /* oid element argument vector */
1142 int namelen = arg2; /* number of oid element arguments */
1143 user_addr_t oldp = req->oldptr; /* user buffer copy out address */
1144 size_t *oldlenp = &req->oldlen; /* user buffer copy out size */
1145 // user_addr_t newp = req->newptr; /* user buffer copy in address */
1146 // size_t newlen = req->newlen; /* user buffer copy in size */
1147
1148 int ret=0;
1149
1150 if (namelen == 0)
1151 return(ENOTSUP);
1152
1153 switch(name[0]) {
1154 case KERN_KDEFLAGS:
1155 case KERN_KDDFLAGS:
1156 case KERN_KDENABLE:
1157 case KERN_KDGETBUF:
1158 case KERN_KDSETUP:
1159 case KERN_KDREMOVE:
1160 case KERN_KDSETREG:
1161 case KERN_KDGETREG:
1162 case KERN_KDREADTR:
1163 case KERN_KDWRITETR:
1164 case KERN_KDWRITEMAP:
1165 case KERN_KDTEST:
1166 case KERN_KDPIDTR:
1167 case KERN_KDTHRMAP:
1168 case KERN_KDPIDEX:
1169 case KERN_KDSETBUF:
1170 case KERN_KDREADCURTHRMAP:
1171 case KERN_KDSET_TYPEFILTER:
1172 case KERN_KDBUFWAIT:
1173 case KERN_KDCPUMAP:
1174 case KERN_KDWRITEMAP_V3:
1175 case KERN_KDWRITETR_V3:
1176 ret = kdbg_control(name, namelen, oldp, oldlenp);
1177 break;
1178 default:
1179 ret= ENOTSUP;
1180 break;
1181 }
1182
1183 /* adjust index so we return the right required/consumed amount */
1184 if (!ret)
1185 req->oldidx += req->oldlen;
1186
1187 return (ret);
1188 }
1189 SYSCTL_PROC(_kern, KERN_KDEBUG, kdebug, CTLTYPE_NODE|CTLFLAG_RD | CTLFLAG_LOCKED,
1190 0, /* Pointer argument (arg1) */
1191 0, /* Integer argument (arg2) */
1192 sysctl_kdebug_ops, /* Handler function */
1193 NULL, /* Data pointer */
1194 "");
1195
1196
1197 #if !CONFIG_EMBEDDED
1198 /*
1199 * Return the top *sizep bytes of the user stack, or the entire area of the
1200 * user stack down through the saved exec_path, whichever is smaller.
1201 */
1202 STATIC int
1203 sysctl_doprocargs SYSCTL_HANDLER_ARGS
1204 {
1205 __unused int cmd = oidp->oid_arg2; /* subcommand*/
1206 int *name = arg1; /* oid element argument vector */
1207 int namelen = arg2; /* number of oid element arguments */
1208 user_addr_t oldp = req->oldptr; /* user buffer copy out address */
1209 size_t *oldlenp = &req->oldlen; /* user buffer copy out size */
1210 // user_addr_t newp = req->newptr; /* user buffer copy in address */
1211 // size_t newlen = req->newlen; /* user buffer copy in size */
1212 int error;
1213
1214 error = sysctl_procargsx( name, namelen, oldp, oldlenp, current_proc(), 0);
1215
1216 /* adjust index so we return the right required/consumed amount */
1217 if (!error)
1218 req->oldidx += req->oldlen;
1219
1220 return (error);
1221 }
1222 SYSCTL_PROC(_kern, KERN_PROCARGS, procargs, CTLTYPE_NODE|CTLFLAG_RD | CTLFLAG_LOCKED,
1223 0, /* Pointer argument (arg1) */
1224 0, /* Integer argument (arg2) */
1225 sysctl_doprocargs, /* Handler function */
1226 NULL, /* Data pointer */
1227 "");
1228 #endif /* !CONFIG_EMBEDDED */
1229
1230 STATIC int
1231 sysctl_doprocargs2 SYSCTL_HANDLER_ARGS
1232 {
1233 __unused int cmd = oidp->oid_arg2; /* subcommand*/
1234 int *name = arg1; /* oid element argument vector */
1235 int namelen = arg2; /* number of oid element arguments */
1236 user_addr_t oldp = req->oldptr; /* user buffer copy out address */
1237 size_t *oldlenp = &req->oldlen; /* user buffer copy out size */
1238 // user_addr_t newp = req->newptr; /* user buffer copy in address */
1239 // size_t newlen = req->newlen; /* user buffer copy in size */
1240 int error;
1241
1242 error = sysctl_procargsx( name, namelen, oldp, oldlenp, current_proc(), 1);
1243
1244 /* adjust index so we return the right required/consumed amount */
1245 if (!error)
1246 req->oldidx += req->oldlen;
1247
1248 return (error);
1249 }
1250 SYSCTL_PROC(_kern, KERN_PROCARGS2, procargs2, CTLTYPE_NODE|CTLFLAG_RD | CTLFLAG_LOCKED,
1251 0, /* Pointer argument (arg1) */
1252 0, /* Integer argument (arg2) */
1253 sysctl_doprocargs2, /* Handler function */
1254 NULL, /* Data pointer */
1255 "");
1256
1257 STATIC int
1258 sysctl_procargsx(int *name, u_int namelen, user_addr_t where,
1259 size_t *sizep, proc_t cur_proc, int argc_yes)
1260 {
1261 proc_t p;
1262 int buflen = where != USER_ADDR_NULL ? *sizep : 0;
1263 int error = 0;
1264 struct _vm_map *proc_map;
1265 struct task * task;
1266 vm_map_copy_t tmp;
1267 user_addr_t arg_addr;
1268 size_t arg_size;
1269 caddr_t data;
1270 size_t argslen=0;
1271 int size;
1272 vm_offset_t copy_start, copy_end;
1273 kern_return_t ret;
1274 int pid;
1275 kauth_cred_t my_cred;
1276 uid_t uid;
1277 int argc = -1;
1278
1279 if ( namelen < 1 )
1280 return(EINVAL);
1281
1282 if (argc_yes)
1283 buflen -= sizeof(int); /* reserve first word to return argc */
1284
1285 /* we only care about buflen when where (oldp from sysctl) is not NULL. */
1286 /* when where (oldp from sysctl) is NULL and sizep (oldlenp from sysctl */
1287 /* is not NULL then the caller wants us to return the length needed to */
1288 /* hold the data we would return */
1289 if (where != USER_ADDR_NULL && (buflen <= 0 || buflen > ARG_MAX)) {
1290 return(EINVAL);
1291 }
1292 arg_size = buflen;
1293
1294 /*
1295 * Lookup process by pid
1296 */
1297 pid = name[0];
1298 p = proc_find(pid);
1299 if (p == NULL) {
1300 return(EINVAL);
1301 }
1302
1303 /*
1304 * Copy the top N bytes of the stack.
1305 * On all machines we have so far, the stack grows
1306 * downwards.
1307 *
1308 * If the user expects no more than N bytes of
1309 * argument list, use that as a guess for the
1310 * size.
1311 */
1312
1313 if (!p->user_stack) {
1314 proc_rele(p);
1315 return(EINVAL);
1316 }
1317
1318 if (where == USER_ADDR_NULL) {
1319 /* caller only wants to know length of proc args data */
1320 if (sizep == NULL) {
1321 proc_rele(p);
1322 return(EFAULT);
1323 }
1324
1325 size = p->p_argslen;
1326 proc_rele(p);
1327 if (argc_yes) {
1328 size += sizeof(int);
1329 } else {
1330 /*
1331 * old PROCARGS will return the executable's path and plus some
1332 * extra space for work alignment and data tags
1333 */
1334 size += PATH_MAX + (6 * sizeof(int));
1335 }
1336 size += (size & (sizeof(int) - 1)) ? (sizeof(int) - (size & (sizeof(int) - 1))) : 0;
1337 *sizep = size;
1338 return (0);
1339 }
1340
1341 my_cred = kauth_cred_proc_ref(p);
1342 uid = kauth_cred_getuid(my_cred);
1343 kauth_cred_unref(&my_cred);
1344
1345 if ((uid != kauth_cred_getuid(kauth_cred_get()))
1346 && suser(kauth_cred_get(), &cur_proc->p_acflag)) {
1347 proc_rele(p);
1348 return (EINVAL);
1349 }
1350
1351 if ((u_int)arg_size > p->p_argslen)
1352 arg_size = round_page(p->p_argslen);
1353
1354 arg_addr = p->user_stack - arg_size;
1355
1356 /*
1357 * Before we can block (any VM code), make another
1358 * reference to the map to keep it alive. We do
1359 * that by getting a reference on the task itself.
1360 */
1361 task = p->task;
1362 if (task == NULL) {
1363 proc_rele(p);
1364 return(EINVAL);
1365 }
1366
1367 /* save off argc before releasing the proc */
1368 argc = p->p_argc;
1369
1370 argslen = p->p_argslen;
1371 /*
1372 * Once we have a task reference we can convert that into a
1373 * map reference, which we will use in the calls below. The
1374 * task/process may change its map after we take this reference
1375 * (see execve), but the worst that will happen then is a return
1376 * of stale info (which is always a possibility).
1377 */
1378 task_reference(task);
1379 proc_rele(p);
1380 proc_map = get_task_map_reference(task);
1381 task_deallocate(task);
1382
1383 if (proc_map == NULL)
1384 return(EINVAL);
1385
1386
1387 ret = kmem_alloc(kernel_map, &copy_start, round_page(arg_size), VM_KERN_MEMORY_BSD);
1388 if (ret != KERN_SUCCESS) {
1389 vm_map_deallocate(proc_map);
1390 return(ENOMEM);
1391 }
1392
1393 copy_end = round_page(copy_start + arg_size);
1394
1395 if( vm_map_copyin(proc_map, (vm_map_address_t)arg_addr,
1396 (vm_map_size_t)arg_size, FALSE, &tmp) != KERN_SUCCESS) {
1397 vm_map_deallocate(proc_map);
1398 kmem_free(kernel_map, copy_start,
1399 round_page(arg_size));
1400 return (EIO);
1401 }
1402
1403 /*
1404 * Now that we've done the copyin from the process'
1405 * map, we can release the reference to it.
1406 */
1407 vm_map_deallocate(proc_map);
1408
1409 if( vm_map_copy_overwrite(kernel_map,
1410 (vm_map_address_t)copy_start,
1411 tmp, FALSE) != KERN_SUCCESS) {
1412 kmem_free(kernel_map, copy_start,
1413 round_page(arg_size));
1414 vm_map_copy_discard(tmp);
1415 return (EIO);
1416 }
1417
1418 if (arg_size > argslen) {
1419 data = (caddr_t) (copy_end - argslen);
1420 size = argslen;
1421 } else {
1422 data = (caddr_t) (copy_end - arg_size);
1423 size = arg_size;
1424 }
1425
1426 /*
1427 * When these sysctls were introduced, the first string in the strings
1428 * section was just the bare path of the executable. However, for security
1429 * reasons we now prefix this string with executable_path= so it can be
1430 * parsed getenv style. To avoid binary compatability issues with exising
1431 * callers of this sysctl, we strip it off here if present.
1432 * (rdar://problem/13746466)
1433 */
1434 #define EXECUTABLE_KEY "executable_path="
1435 if (strncmp(EXECUTABLE_KEY, data, strlen(EXECUTABLE_KEY)) == 0){
1436 data += strlen(EXECUTABLE_KEY);
1437 size -= strlen(EXECUTABLE_KEY);
1438 }
1439
1440 if (argc_yes) {
1441 /* Put processes argc as the first word in the copyout buffer */
1442 suword(where, argc);
1443 error = copyout(data, (where + sizeof(int)), size);
1444 size += sizeof(int);
1445 } else {
1446 error = copyout(data, where, size);
1447
1448 /*
1449 * Make the old PROCARGS work to return the executable's path
1450 * But, only if there is enough space in the provided buffer
1451 *
1452 * on entry: data [possibily] points to the beginning of the path
1453 *
1454 * Note: we keep all pointers&sizes aligned to word boundries
1455 */
1456 if ( (! error) && (buflen > 0 && (u_int)buflen > argslen) )
1457 {
1458 int binPath_sz, alignedBinPath_sz = 0;
1459 int extraSpaceNeeded, addThis;
1460 user_addr_t placeHere;
1461 char * str = (char *) data;
1462 int max_len = size;
1463
1464 /* Some apps are really bad about messing up their stacks
1465 So, we have to be extra careful about getting the length
1466 of the executing binary. If we encounter an error, we bail.
1467 */
1468
1469 /* Limit ourselves to PATH_MAX paths */
1470 if ( max_len > PATH_MAX ) max_len = PATH_MAX;
1471
1472 binPath_sz = 0;
1473
1474 while ( (binPath_sz < max_len-1) && (*str++ != 0) )
1475 binPath_sz++;
1476
1477 /* If we have a NUL terminator, copy it, too */
1478 if (binPath_sz < max_len-1) binPath_sz += 1;
1479
1480 /* Pre-Flight the space requiremnts */
1481
1482 /* Account for the padding that fills out binPath to the next word */
1483 alignedBinPath_sz += (binPath_sz & (sizeof(int)-1)) ? (sizeof(int)-(binPath_sz & (sizeof(int)-1))) : 0;
1484
1485 placeHere = where + size;
1486
1487 /* Account for the bytes needed to keep placeHere word aligned */
1488 addThis = (placeHere & (sizeof(int)-1)) ? (sizeof(int)-(placeHere & (sizeof(int)-1))) : 0;
1489
1490 /* Add up all the space that is needed */
1491 extraSpaceNeeded = alignedBinPath_sz + addThis + binPath_sz + (4 * sizeof(int));
1492
1493 /* is there is room to tack on argv[0]? */
1494 if ( (buflen & ~(sizeof(int)-1)) >= ( argslen + extraSpaceNeeded ))
1495 {
1496 placeHere += addThis;
1497 suword(placeHere, 0);
1498 placeHere += sizeof(int);
1499 suword(placeHere, 0xBFFF0000);
1500 placeHere += sizeof(int);
1501 suword(placeHere, 0);
1502 placeHere += sizeof(int);
1503 error = copyout(data, placeHere, binPath_sz);
1504 if ( ! error )
1505 {
1506 placeHere += binPath_sz;
1507 suword(placeHere, 0);
1508 size += extraSpaceNeeded;
1509 }
1510 }
1511 }
1512 }
1513
1514 if (copy_start != (vm_offset_t) 0) {
1515 kmem_free(kernel_map, copy_start, copy_end - copy_start);
1516 }
1517 if (error) {
1518 return(error);
1519 }
1520
1521 if (where != USER_ADDR_NULL)
1522 *sizep = size;
1523 return (0);
1524 }
1525
1526
1527 /*
1528 * Max number of concurrent aio requests
1529 */
1530 STATIC int
1531 sysctl_aiomax
1532 (__unused struct sysctl_oid *oidp, __unused void *arg1, __unused int arg2, struct sysctl_req *req)
1533 {
1534 int new_value, changed;
1535 int error = sysctl_io_number(req, aio_max_requests, sizeof(int), &new_value, &changed);
1536 if (changed) {
1537 /* make sure the system-wide limit is greater than the per process limit */
1538 if (new_value >= aio_max_requests_per_process && new_value <= AIO_MAX_REQUESTS)
1539 aio_max_requests = new_value;
1540 else
1541 error = EINVAL;
1542 }
1543 return(error);
1544 }
1545
1546
1547 /*
1548 * Max number of concurrent aio requests per process
1549 */
1550 STATIC int
1551 sysctl_aioprocmax
1552 (__unused struct sysctl_oid *oidp, __unused void *arg1, __unused int arg2, struct sysctl_req *req)
1553 {
1554 int new_value, changed;
1555 int error = sysctl_io_number(req, aio_max_requests_per_process, sizeof(int), &new_value, &changed);
1556 if (changed) {
1557 /* make sure per process limit is less than the system-wide limit */
1558 if (new_value <= aio_max_requests && new_value >= AIO_LISTIO_MAX)
1559 aio_max_requests_per_process = new_value;
1560 else
1561 error = EINVAL;
1562 }
1563 return(error);
1564 }
1565
1566
1567 /*
1568 * Max number of async IO worker threads
1569 */
1570 STATIC int
1571 sysctl_aiothreads
1572 (__unused struct sysctl_oid *oidp, __unused void *arg1, __unused int arg2, struct sysctl_req *req)
1573 {
1574 int new_value, changed;
1575 int error = sysctl_io_number(req, aio_worker_threads, sizeof(int), &new_value, &changed);
1576 if (changed) {
1577 /* we only allow an increase in the number of worker threads */
1578 if (new_value > aio_worker_threads ) {
1579 _aio_create_worker_threads((new_value - aio_worker_threads));
1580 aio_worker_threads = new_value;
1581 }
1582 else
1583 error = EINVAL;
1584 }
1585 return(error);
1586 }
1587
1588
1589 /*
1590 * System-wide limit on the max number of processes
1591 */
1592 STATIC int
1593 sysctl_maxproc
1594 (__unused struct sysctl_oid *oidp, __unused void *arg1, __unused int arg2, struct sysctl_req *req)
1595 {
1596 int new_value, changed;
1597 int error = sysctl_io_number(req, maxproc, sizeof(int), &new_value, &changed);
1598 if (changed) {
1599 AUDIT_ARG(value32, new_value);
1600 /* make sure the system-wide limit is less than the configured hard
1601 limit set at kernel compilation */
1602 if (new_value <= hard_maxproc && new_value > 0)
1603 maxproc = new_value;
1604 else
1605 error = EINVAL;
1606 }
1607 return(error);
1608 }
1609
1610 SYSCTL_STRING(_kern, KERN_OSTYPE, ostype,
1611 CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED,
1612 ostype, 0, "");
1613 SYSCTL_STRING(_kern, KERN_OSRELEASE, osrelease,
1614 CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED,
1615 osrelease, 0, "");
1616 SYSCTL_INT(_kern, KERN_OSREV, osrevision,
1617 CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED,
1618 (int *)NULL, BSD, "");
1619 SYSCTL_STRING(_kern, KERN_VERSION, version,
1620 CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED,
1621 version, 0, "");
1622 SYSCTL_STRING(_kern, OID_AUTO, uuid,
1623 CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED,
1624 &kernel_uuid_string[0], 0, "");
1625
1626 #if DEBUG
1627 int debug_kprint_syscall = 0;
1628 char debug_kprint_syscall_process[MAXCOMLEN+1];
1629
1630 /* Thread safe: bits and string value are not used to reclaim state */
1631 SYSCTL_INT (_debug, OID_AUTO, kprint_syscall,
1632 CTLFLAG_RW | CTLFLAG_LOCKED, &debug_kprint_syscall, 0, "kprintf syscall tracing");
1633 SYSCTL_STRING(_debug, OID_AUTO, kprint_syscall_process,
1634 CTLFLAG_RW | CTLFLAG_LOCKED, debug_kprint_syscall_process, sizeof(debug_kprint_syscall_process),
1635 "name of process for kprintf syscall tracing");
1636
1637 int debug_kprint_current_process(const char **namep)
1638 {
1639 struct proc *p = current_proc();
1640
1641 if (p == NULL) {
1642 return 0;
1643 }
1644
1645 if (debug_kprint_syscall_process[0]) {
1646 /* user asked to scope tracing to a particular process name */
1647 if(0 == strncmp(debug_kprint_syscall_process,
1648 p->p_comm, sizeof(debug_kprint_syscall_process))) {
1649 /* no value in telling the user that we traced what they asked */
1650 if(namep) *namep = NULL;
1651
1652 return 1;
1653 } else {
1654 return 0;
1655 }
1656 }
1657
1658 /* trace all processes. Tell user what we traced */
1659 if (namep) {
1660 *namep = p->p_comm;
1661 }
1662
1663 return 1;
1664 }
1665 #endif
1666
1667 /* PR-5293665: need to use a callback function for kern.osversion to set
1668 * osversion in IORegistry */
1669
1670 STATIC int
1671 sysctl_osversion(__unused struct sysctl_oid *oidp, void *arg1, int arg2, struct sysctl_req *req)
1672 {
1673 int rval = 0;
1674
1675 rval = sysctl_handle_string(oidp, arg1, arg2, req);
1676
1677 if (req->newptr) {
1678 IORegistrySetOSBuildVersion((char *)arg1);
1679 }
1680
1681 return rval;
1682 }
1683
1684 SYSCTL_PROC(_kern, KERN_OSVERSION, osversion,
1685 CTLFLAG_RW | CTLFLAG_KERN | CTLTYPE_STRING | CTLFLAG_LOCKED,
1686 osversion, 256 /* OSVERSIZE*/,
1687 sysctl_osversion, "A", "");
1688
1689 static uint64_t osvariant_status = 0;
1690
1691 STATIC int
1692 sysctl_osvariant_status(__unused struct sysctl_oid *oidp, void *arg1, int arg2, struct sysctl_req *req)
1693 {
1694 if (req->newptr != 0) {
1695 /*
1696 * Can only ever be set by launchd, and only once at boot.
1697 */
1698 if (req->p->p_pid != 1 || osvariant_status != 0) {
1699 return EPERM;
1700 }
1701 }
1702
1703 return sysctl_handle_quad(oidp, arg1, arg2, req);
1704 }
1705
1706 SYSCTL_PROC(_kern, OID_AUTO, osvariant_status,
1707 CTLFLAG_RW | CTLTYPE_QUAD | CTLFLAG_LOCKED | CTLFLAG_MASKED,
1708 &osvariant_status, sizeof(osvariant_status),
1709 sysctl_osvariant_status, "Q", "Opaque flags used to cache OS variant information");
1710
1711 STATIC int
1712 sysctl_sysctl_bootargs
1713 (__unused struct sysctl_oid *oidp, __unused void *arg1, __unused int arg2, struct sysctl_req *req)
1714 {
1715 int error;
1716 /* BOOT_LINE_LENGTH */
1717 #if CONFIG_EMBEDDED
1718 size_t boot_args_len = 256;
1719 #else
1720 size_t boot_args_len = 1024;
1721 #endif
1722 char buf[boot_args_len];
1723
1724 strlcpy(buf, PE_boot_args(), boot_args_len);
1725 error = sysctl_io_string(req, buf, boot_args_len, 0, NULL);
1726 return(error);
1727 }
1728
1729 SYSCTL_PROC(_kern, OID_AUTO, bootargs,
1730 CTLFLAG_LOCKED | CTLFLAG_RD | CTLFLAG_KERN | CTLTYPE_STRING,
1731 NULL, 0,
1732 sysctl_sysctl_bootargs, "A", "bootargs");
1733
1734 SYSCTL_INT(_kern, KERN_MAXFILES, maxfiles,
1735 CTLFLAG_RW | CTLFLAG_KERN | CTLFLAG_LOCKED,
1736 &maxfiles, 0, "");
1737 SYSCTL_INT(_kern, KERN_ARGMAX, argmax,
1738 CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED,
1739 (int *)NULL, ARG_MAX, "");
1740 SYSCTL_INT(_kern, KERN_POSIX1, posix1version,
1741 CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED,
1742 (int *)NULL, _POSIX_VERSION, "");
1743 SYSCTL_INT(_kern, KERN_NGROUPS, ngroups,
1744 CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED,
1745 (int *)NULL, NGROUPS_MAX, "");
1746 SYSCTL_INT(_kern, KERN_JOB_CONTROL, job_control,
1747 CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED,
1748 (int *)NULL, 1, "");
1749 #if 1 /* _POSIX_SAVED_IDS from <unistd.h> */
1750 SYSCTL_INT(_kern, KERN_SAVED_IDS, saved_ids,
1751 CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED,
1752 (int *)NULL, 1, "");
1753 #else
1754 SYSCTL_INT(_kern, KERN_SAVED_IDS, saved_ids,
1755 CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED,
1756 NULL, 0, "");
1757 #endif
1758 SYSCTL_INT(_kern, OID_AUTO, num_files,
1759 CTLFLAG_RD | CTLFLAG_LOCKED,
1760 &nfiles, 0, "");
1761 SYSCTL_COMPAT_INT(_kern, OID_AUTO, num_vnodes,
1762 CTLFLAG_RD | CTLFLAG_LOCKED,
1763 &numvnodes, 0, "");
1764 SYSCTL_INT(_kern, OID_AUTO, num_tasks,
1765 CTLFLAG_RD | CTLFLAG_LOCKED,
1766 &task_max, 0, "");
1767 SYSCTL_INT(_kern, OID_AUTO, num_threads,
1768 CTLFLAG_RD | CTLFLAG_LOCKED,
1769 &thread_max, 0, "");
1770 SYSCTL_INT(_kern, OID_AUTO, num_taskthreads,
1771 CTLFLAG_RD | CTLFLAG_LOCKED,
1772 &task_threadmax, 0, "");
1773
1774 STATIC int
1775 sysctl_maxvnodes (__unused struct sysctl_oid *oidp, __unused void *arg1, __unused int arg2, struct sysctl_req *req)
1776 {
1777 int oldval = desiredvnodes;
1778 int error = sysctl_io_number(req, desiredvnodes, sizeof(int), &desiredvnodes, NULL);
1779
1780 if (oldval != desiredvnodes) {
1781 resize_namecache(desiredvnodes);
1782 }
1783
1784 return(error);
1785 }
1786
1787 SYSCTL_INT(_kern, OID_AUTO, namecache_disabled,
1788 CTLFLAG_RW | CTLFLAG_LOCKED,
1789 &nc_disabled, 0, "");
1790
1791 SYSCTL_PROC(_kern, KERN_MAXVNODES, maxvnodes,
1792 CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_LOCKED,
1793 0, 0, sysctl_maxvnodes, "I", "");
1794
1795 SYSCTL_PROC(_kern, KERN_MAXPROC, maxproc,
1796 CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_LOCKED,
1797 0, 0, sysctl_maxproc, "I", "");
1798
1799 SYSCTL_PROC(_kern, KERN_AIOMAX, aiomax,
1800 CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_LOCKED,
1801 0, 0, sysctl_aiomax, "I", "");
1802
1803 SYSCTL_PROC(_kern, KERN_AIOPROCMAX, aioprocmax,
1804 CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_LOCKED,
1805 0, 0, sysctl_aioprocmax, "I", "");
1806
1807 SYSCTL_PROC(_kern, KERN_AIOTHREADS, aiothreads,
1808 CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_LOCKED,
1809 0, 0, sysctl_aiothreads, "I", "");
1810
1811 #if (DEVELOPMENT || DEBUG)
1812 extern int sched_smt_balance;
1813 SYSCTL_INT(_kern, OID_AUTO, sched_smt_balance,
1814 CTLFLAG_KERN| CTLFLAG_RW| CTLFLAG_LOCKED,
1815 &sched_smt_balance, 0, "");
1816 #if __arm__ || __arm64__
1817 extern uint32_t perfcontrol_requested_recommended_cores;
1818 SYSCTL_UINT(_kern, OID_AUTO, sched_recommended_cores,
1819 CTLFLAG_KERN | CTLFLAG_RD | CTLFLAG_LOCKED,
1820 &perfcontrol_requested_recommended_cores, 0, "");
1821
1822 /* Scheduler perfcontrol callouts sysctls */
1823 SYSCTL_DECL(_kern_perfcontrol_callout);
1824 SYSCTL_NODE(_kern, OID_AUTO, perfcontrol_callout, CTLFLAG_RW | CTLFLAG_LOCKED, 0,
1825 "scheduler perfcontrol callouts");
1826
1827 extern int perfcontrol_callout_stats_enabled;
1828 SYSCTL_INT(_kern_perfcontrol_callout, OID_AUTO, stats_enabled,
1829 CTLFLAG_KERN| CTLFLAG_RW| CTLFLAG_LOCKED,
1830 &perfcontrol_callout_stats_enabled, 0, "");
1831
1832 extern uint64_t perfcontrol_callout_stat_avg(perfcontrol_callout_type_t type,
1833 perfcontrol_callout_stat_t stat);
1834
1835 /* On-Core Callout */
1836 STATIC int
1837 sysctl_perfcontrol_callout_stat
1838 (__unused struct sysctl_oid *oidp, void *arg1, int arg2, struct sysctl_req *req)
1839 {
1840 perfcontrol_callout_stat_t stat = (perfcontrol_callout_stat_t)arg1;
1841 perfcontrol_callout_type_t type = (perfcontrol_callout_type_t)arg2;
1842 return sysctl_io_number(req, (int)perfcontrol_callout_stat_avg(type, stat),
1843 sizeof(int), NULL, NULL);
1844 }
1845
1846 SYSCTL_PROC(_kern_perfcontrol_callout, OID_AUTO, oncore_instr,
1847 CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_LOCKED,
1848 (void *)PERFCONTROL_STAT_INSTRS, PERFCONTROL_CALLOUT_ON_CORE,
1849 sysctl_perfcontrol_callout_stat, "I", "");
1850 SYSCTL_PROC(_kern_perfcontrol_callout, OID_AUTO, oncore_cycles,
1851 CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_LOCKED,
1852 (void *)PERFCONTROL_STAT_CYCLES, PERFCONTROL_CALLOUT_ON_CORE,
1853 sysctl_perfcontrol_callout_stat, "I", "");
1854 SYSCTL_PROC(_kern_perfcontrol_callout, OID_AUTO, offcore_instr,
1855 CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_LOCKED,
1856 (void *)PERFCONTROL_STAT_INSTRS, PERFCONTROL_CALLOUT_OFF_CORE,
1857 sysctl_perfcontrol_callout_stat, "I", "");
1858 SYSCTL_PROC(_kern_perfcontrol_callout, OID_AUTO, offcore_cycles,
1859 CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_LOCKED,
1860 (void *)PERFCONTROL_STAT_CYCLES, PERFCONTROL_CALLOUT_OFF_CORE,
1861 sysctl_perfcontrol_callout_stat, "I", "");
1862 SYSCTL_PROC(_kern_perfcontrol_callout, OID_AUTO, context_instr,
1863 CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_LOCKED,
1864 (void *)PERFCONTROL_STAT_INSTRS, PERFCONTROL_CALLOUT_CONTEXT,
1865 sysctl_perfcontrol_callout_stat, "I", "");
1866 SYSCTL_PROC(_kern_perfcontrol_callout, OID_AUTO, context_cycles,
1867 CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_LOCKED,
1868 (void *)PERFCONTROL_STAT_CYCLES, PERFCONTROL_CALLOUT_CONTEXT,
1869 sysctl_perfcontrol_callout_stat, "I", "");
1870 SYSCTL_PROC(_kern_perfcontrol_callout, OID_AUTO, update_instr,
1871 CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_LOCKED,
1872 (void *)PERFCONTROL_STAT_INSTRS, PERFCONTROL_CALLOUT_STATE_UPDATE,
1873 sysctl_perfcontrol_callout_stat, "I", "");
1874 SYSCTL_PROC(_kern_perfcontrol_callout, OID_AUTO, update_cycles,
1875 CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_LOCKED,
1876 (void *)PERFCONTROL_STAT_CYCLES, PERFCONTROL_CALLOUT_STATE_UPDATE,
1877 sysctl_perfcontrol_callout_stat, "I", "");
1878
1879 #endif /* __arm__ || __arm64__ */
1880 #endif /* (DEVELOPMENT || DEBUG) */
1881
1882 STATIC int
1883 sysctl_securelvl
1884 (__unused struct sysctl_oid *oidp, __unused void *arg1, __unused int arg2, struct sysctl_req *req)
1885 {
1886 int new_value, changed;
1887 int error = sysctl_io_number(req, securelevel, sizeof(int), &new_value, &changed);
1888 if (changed) {
1889 if (!(new_value < securelevel && req->p->p_pid != 1)) {
1890 proc_list_lock();
1891 securelevel = new_value;
1892 proc_list_unlock();
1893 } else {
1894 error = EPERM;
1895 }
1896 }
1897 return(error);
1898 }
1899
1900 SYSCTL_PROC(_kern, KERN_SECURELVL, securelevel,
1901 CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_LOCKED,
1902 0, 0, sysctl_securelvl, "I", "");
1903
1904
1905 STATIC int
1906 sysctl_domainname
1907 (__unused struct sysctl_oid *oidp, __unused void *arg1, __unused int arg2, struct sysctl_req *req)
1908 {
1909 int error, changed;
1910 error = sysctl_io_string(req, domainname, sizeof(domainname), 0, &changed);
1911 if (changed) {
1912 domainnamelen = strlen(domainname);
1913 }
1914 return(error);
1915 }
1916
1917 SYSCTL_PROC(_kern, KERN_DOMAINNAME, nisdomainname,
1918 CTLTYPE_STRING | CTLFLAG_RW | CTLFLAG_LOCKED,
1919 0, 0, sysctl_domainname, "A", "");
1920
1921 SYSCTL_COMPAT_INT(_kern, KERN_HOSTID, hostid,
1922 CTLFLAG_RW | CTLFLAG_KERN | CTLFLAG_LOCKED,
1923 &hostid, 0, "");
1924
1925 STATIC int
1926 sysctl_hostname
1927 (__unused struct sysctl_oid *oidp, __unused void *arg1, __unused int arg2, struct sysctl_req *req)
1928 {
1929 int error, changed;
1930 error = sysctl_io_string(req, hostname, sizeof(hostname), 1, &changed);
1931 if (changed) {
1932 hostnamelen = req->newlen;
1933 }
1934 return(error);
1935 }
1936
1937
1938 SYSCTL_PROC(_kern, KERN_HOSTNAME, hostname,
1939 CTLTYPE_STRING | CTLFLAG_RW | CTLFLAG_LOCKED,
1940 0, 0, sysctl_hostname, "A", "");
1941
1942 STATIC int
1943 sysctl_procname
1944 (__unused struct sysctl_oid *oidp, __unused void *arg1, __unused int arg2, struct sysctl_req *req)
1945 {
1946 /* Original code allowed writing, I'm copying this, although this all makes
1947 no sense to me. Besides, this sysctl is never used. */
1948 return sysctl_io_string(req, &req->p->p_name[0], (2*MAXCOMLEN+1), 1, NULL);
1949 }
1950
1951 SYSCTL_PROC(_kern, KERN_PROCNAME, procname,
1952 CTLTYPE_STRING | CTLFLAG_RW | CTLFLAG_ANYBODY | CTLFLAG_LOCKED,
1953 0, 0, sysctl_procname, "A", "");
1954
1955 SYSCTL_INT(_kern, KERN_SPECULATIVE_READS, speculative_reads_disabled,
1956 CTLFLAG_RW | CTLFLAG_KERN | CTLFLAG_LOCKED,
1957 &speculative_reads_disabled, 0, "");
1958
1959 SYSCTL_UINT(_kern, OID_AUTO, preheat_max_bytes,
1960 CTLFLAG_RW | CTLFLAG_KERN | CTLFLAG_LOCKED,
1961 &preheat_max_bytes, 0, "");
1962
1963 SYSCTL_UINT(_kern, OID_AUTO, preheat_min_bytes,
1964 CTLFLAG_RW | CTLFLAG_KERN | CTLFLAG_LOCKED,
1965 &preheat_min_bytes, 0, "");
1966
1967 SYSCTL_UINT(_kern, OID_AUTO, speculative_prefetch_max,
1968 CTLFLAG_RW | CTLFLAG_KERN | CTLFLAG_LOCKED,
1969 &speculative_prefetch_max, 0, "");
1970
1971 SYSCTL_UINT(_kern, OID_AUTO, speculative_prefetch_max_iosize,
1972 CTLFLAG_RW | CTLFLAG_KERN | CTLFLAG_LOCKED,
1973 &speculative_prefetch_max_iosize, 0, "");
1974
1975 SYSCTL_UINT(_kern, OID_AUTO, vm_page_free_target,
1976 CTLFLAG_RW | CTLFLAG_KERN | CTLFLAG_LOCKED,
1977 &vm_page_free_target, 0, "");
1978
1979 SYSCTL_UINT(_kern, OID_AUTO, vm_page_free_min,
1980 CTLFLAG_RW | CTLFLAG_KERN | CTLFLAG_LOCKED,
1981 &vm_page_free_min, 0, "");
1982
1983 SYSCTL_UINT(_kern, OID_AUTO, vm_page_free_reserved,
1984 CTLFLAG_RW | CTLFLAG_KERN | CTLFLAG_LOCKED,
1985 &vm_page_free_reserved, 0, "");
1986
1987 SYSCTL_UINT(_kern, OID_AUTO, vm_page_speculative_percentage,
1988 CTLFLAG_RW | CTLFLAG_KERN | CTLFLAG_LOCKED,
1989 &vm_page_speculative_percentage, 0, "");
1990
1991 SYSCTL_UINT(_kern, OID_AUTO, vm_page_speculative_q_age_ms,
1992 CTLFLAG_RW | CTLFLAG_KERN | CTLFLAG_LOCKED,
1993 &vm_page_speculative_q_age_ms, 0, "");
1994
1995 SYSCTL_UINT(_kern, OID_AUTO, vm_max_delayed_work_limit,
1996 CTLFLAG_RW | CTLFLAG_KERN | CTLFLAG_LOCKED,
1997 &vm_max_delayed_work_limit, 0, "");
1998
1999 SYSCTL_UINT(_kern, OID_AUTO, vm_max_batch,
2000 CTLFLAG_RW | CTLFLAG_KERN | CTLFLAG_LOCKED,
2001 &vm_max_batch, 0, "");
2002
2003 SYSCTL_STRING(_kern, OID_AUTO, bootsessionuuid,
2004 CTLFLAG_RD | CTLFLAG_LOCKED,
2005 &bootsessionuuid_string, sizeof(bootsessionuuid_string) , "");
2006
2007 STATIC int
2008 sysctl_boottime
2009 (__unused struct sysctl_oid *oidp, __unused void *arg1, __unused int arg2, struct sysctl_req *req)
2010 {
2011 struct timeval tv;
2012 boottime_timeval(&tv);
2013 struct proc *p = req->p;
2014
2015 if (proc_is64bit(p)) {
2016 struct user64_timeval t = {};
2017 t.tv_sec = tv.tv_sec;
2018 t.tv_usec = tv.tv_usec;
2019 return sysctl_io_opaque(req, &t, sizeof(t), NULL);
2020 } else {
2021 struct user32_timeval t = {};
2022 t.tv_sec = tv.tv_sec;
2023 t.tv_usec = tv.tv_usec;
2024 return sysctl_io_opaque(req, &t, sizeof(t), NULL);
2025 }
2026 }
2027
2028 SYSCTL_PROC(_kern, KERN_BOOTTIME, boottime,
2029 CTLTYPE_STRUCT | CTLFLAG_KERN | CTLFLAG_RD | CTLFLAG_LOCKED,
2030 0, 0, sysctl_boottime, "S,timeval", "");
2031
2032 STATIC int
2033 sysctl_symfile
2034 (__unused struct sysctl_oid *oidp, __unused void *arg1, __unused int arg2, struct sysctl_req *req)
2035 {
2036 char *str;
2037 int error = get_kernel_symfile(req->p, &str);
2038 if (error)
2039 return (error);
2040 return sysctl_io_string(req, str, 0, 0, NULL);
2041 }
2042
2043
2044 SYSCTL_PROC(_kern, KERN_SYMFILE, symfile,
2045 CTLTYPE_STRING | CTLFLAG_RD | CTLFLAG_LOCKED,
2046 0, 0, sysctl_symfile, "A", "");
2047
2048 #if NFSCLIENT
2049 STATIC int
2050 sysctl_netboot
2051 (__unused struct sysctl_oid *oidp, __unused void *arg1, __unused int arg2, struct sysctl_req *req)
2052 {
2053 return sysctl_io_number(req, netboot_root(), sizeof(int), NULL, NULL);
2054 }
2055
2056 SYSCTL_PROC(_kern, KERN_NETBOOT, netboot,
2057 CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_LOCKED,
2058 0, 0, sysctl_netboot, "I", "");
2059 #endif
2060
2061 #ifdef CONFIG_IMGSRC_ACCESS
2062 /*
2063 * Legacy--act as if only one layer of nesting is possible.
2064 */
2065 STATIC int
2066 sysctl_imgsrcdev
2067 (__unused struct sysctl_oid *oidp, __unused void *arg1, __unused int arg2, struct sysctl_req *req)
2068 {
2069 vfs_context_t ctx = vfs_context_current();
2070 vnode_t devvp;
2071 int result;
2072
2073 if (!vfs_context_issuser(ctx)) {
2074 return EPERM;
2075 }
2076
2077 if (imgsrc_rootvnodes[0] == NULL) {
2078 return ENOENT;
2079 }
2080
2081 result = vnode_getwithref(imgsrc_rootvnodes[0]);
2082 if (result != 0) {
2083 return result;
2084 }
2085
2086 devvp = vnode_mount(imgsrc_rootvnodes[0])->mnt_devvp;
2087 result = vnode_getwithref(devvp);
2088 if (result != 0) {
2089 goto out;
2090 }
2091
2092 result = sysctl_io_number(req, vnode_specrdev(devvp), sizeof(dev_t), NULL, NULL);
2093
2094 vnode_put(devvp);
2095 out:
2096 vnode_put(imgsrc_rootvnodes[0]);
2097 return result;
2098 }
2099
2100 SYSCTL_PROC(_kern, OID_AUTO, imgsrcdev,
2101 CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_LOCKED,
2102 0, 0, sysctl_imgsrcdev, "I", "");
2103
2104 STATIC int
2105 sysctl_imgsrcinfo
2106 (__unused struct sysctl_oid *oidp, __unused void *arg1, __unused int arg2, struct sysctl_req *req)
2107 {
2108 int error;
2109 struct imgsrc_info info[MAX_IMAGEBOOT_NESTING] = {}; /* 2 for now, no problem */
2110 uint32_t i;
2111 vnode_t rvp, devvp;
2112
2113 if (imgsrc_rootvnodes[0] == NULLVP) {
2114 return ENXIO;
2115 }
2116
2117 for (i = 0; i < MAX_IMAGEBOOT_NESTING; i++) {
2118 /*
2119 * Go get the root vnode.
2120 */
2121 rvp = imgsrc_rootvnodes[i];
2122 if (rvp == NULLVP) {
2123 break;
2124 }
2125
2126 error = vnode_get(rvp);
2127 if (error != 0) {
2128 return error;
2129 }
2130
2131 /*
2132 * For now, no getting at a non-local volume.
2133 */
2134 devvp = vnode_mount(rvp)->mnt_devvp;
2135 if (devvp == NULL) {
2136 vnode_put(rvp);
2137 return EINVAL;
2138 }
2139
2140 error = vnode_getwithref(devvp);
2141 if (error != 0) {
2142 vnode_put(rvp);
2143 return error;
2144 }
2145
2146 /*
2147 * Fill in info.
2148 */
2149 info[i].ii_dev = vnode_specrdev(devvp);
2150 info[i].ii_flags = 0;
2151 info[i].ii_height = i;
2152 bzero(info[i].ii_reserved, sizeof(info[i].ii_reserved));
2153
2154 vnode_put(devvp);
2155 vnode_put(rvp);
2156 }
2157
2158 return sysctl_io_opaque(req, info, i * sizeof(info[0]), NULL);
2159 }
2160
2161 SYSCTL_PROC(_kern, OID_AUTO, imgsrcinfo,
2162 CTLTYPE_OPAQUE | CTLFLAG_RD | CTLFLAG_LOCKED,
2163 0, 0, sysctl_imgsrcinfo, "I", "");
2164
2165 #endif /* CONFIG_IMGSRC_ACCESS */
2166
2167
2168 SYSCTL_DECL(_kern_timer);
2169 SYSCTL_NODE(_kern, OID_AUTO, timer, CTLFLAG_RW | CTLFLAG_LOCKED, 0, "timer");
2170
2171
2172 SYSCTL_INT(_kern_timer, OID_AUTO, coalescing_enabled,
2173 CTLFLAG_KERN | CTLFLAG_RW | CTLFLAG_LOCKED,
2174 &mach_timer_coalescing_enabled, 0, "");
2175
2176 SYSCTL_QUAD(_kern_timer, OID_AUTO, deadline_tracking_bin_1,
2177 CTLFLAG_RW | CTLFLAG_LOCKED,
2178 &timer_deadline_tracking_bin_1, "");
2179 SYSCTL_QUAD(_kern_timer, OID_AUTO, deadline_tracking_bin_2,
2180 CTLFLAG_RW | CTLFLAG_LOCKED,
2181 &timer_deadline_tracking_bin_2, "");
2182
2183 SYSCTL_DECL(_kern_timer_longterm);
2184 SYSCTL_NODE(_kern_timer, OID_AUTO, longterm, CTLFLAG_RW | CTLFLAG_LOCKED, 0, "longterm");
2185
2186
2187 /* Must match definition in osfmk/kern/timer_call.c */
2188 enum {
2189 THRESHOLD, QCOUNT,
2190 ENQUEUES, DEQUEUES, ESCALATES, SCANS, PREEMPTS,
2191 LATENCY, LATENCY_MIN, LATENCY_MAX, SCAN_LIMIT, PAUSES
2192 };
2193 extern uint64_t timer_sysctl_get(int);
2194 extern int timer_sysctl_set(int, uint64_t);
2195
2196 STATIC int
2197 sysctl_timer
2198 (__unused struct sysctl_oid *oidp, __unused void *arg1, __unused int arg2, struct sysctl_req *req)
2199 {
2200 int oid = (int)arg1;
2201 uint64_t value = timer_sysctl_get(oid);
2202 uint64_t new_value;
2203 int error;
2204 int changed;
2205
2206 error = sysctl_io_number(req, value, sizeof(value), &new_value, &changed);
2207 if (changed)
2208 error = timer_sysctl_set(oid, new_value);
2209
2210 return error;
2211 }
2212
2213 SYSCTL_PROC(_kern_timer_longterm, OID_AUTO, threshold,
2214 CTLTYPE_QUAD | CTLFLAG_RW | CTLFLAG_LOCKED,
2215 (void *) THRESHOLD, 0, sysctl_timer, "Q", "");
2216 SYSCTL_PROC(_kern_timer_longterm, OID_AUTO, scan_limit,
2217 CTLTYPE_QUAD | CTLFLAG_RW | CTLFLAG_LOCKED,
2218 (void *) SCAN_LIMIT, 0, sysctl_timer, "Q", "");
2219 SYSCTL_PROC(_kern_timer_longterm, OID_AUTO, qlen,
2220 CTLTYPE_QUAD | CTLFLAG_RD | CTLFLAG_LOCKED,
2221 (void *) QCOUNT, 0, sysctl_timer, "Q", "");
2222 #if DEBUG
2223 SYSCTL_PROC(_kern_timer_longterm, OID_AUTO, enqueues,
2224 CTLTYPE_QUAD | CTLFLAG_RD | CTLFLAG_LOCKED,
2225 (void *) ENQUEUES, 0, sysctl_timer, "Q", "");
2226 SYSCTL_PROC(_kern_timer_longterm, OID_AUTO, dequeues,
2227 CTLTYPE_QUAD | CTLFLAG_RD | CTLFLAG_LOCKED,
2228 (void *) DEQUEUES, 0, sysctl_timer, "Q", "");
2229 SYSCTL_PROC(_kern_timer_longterm, OID_AUTO, escalates,
2230 CTLTYPE_QUAD | CTLFLAG_RD | CTLFLAG_LOCKED,
2231 (void *) ESCALATES, 0, sysctl_timer, "Q", "");
2232 SYSCTL_PROC(_kern_timer_longterm, OID_AUTO, scans,
2233 CTLTYPE_QUAD | CTLFLAG_RD | CTLFLAG_LOCKED,
2234 (void *) SCANS, 0, sysctl_timer, "Q", "");
2235 SYSCTL_PROC(_kern_timer_longterm, OID_AUTO, preempts,
2236 CTLTYPE_QUAD | CTLFLAG_RD | CTLFLAG_LOCKED,
2237 (void *) PREEMPTS, 0, sysctl_timer, "Q", "");
2238 SYSCTL_PROC(_kern_timer_longterm, OID_AUTO, latency,
2239 CTLTYPE_QUAD | CTLFLAG_RD | CTLFLAG_LOCKED,
2240 (void *) LATENCY, 0, sysctl_timer, "Q", "");
2241 SYSCTL_PROC(_kern_timer_longterm, OID_AUTO, latency_min,
2242 CTLTYPE_QUAD | CTLFLAG_RD | CTLFLAG_LOCKED,
2243 (void *) LATENCY_MIN, 0, sysctl_timer, "Q", "");
2244 SYSCTL_PROC(_kern_timer_longterm, OID_AUTO, latency_max,
2245 CTLTYPE_QUAD | CTLFLAG_RD | CTLFLAG_LOCKED,
2246 (void *) LATENCY_MAX, 0, sysctl_timer, "Q", "");
2247 SYSCTL_PROC(_kern_timer_longterm, OID_AUTO, scan_pauses,
2248 CTLTYPE_QUAD | CTLFLAG_RD | CTLFLAG_LOCKED,
2249 (void *) PAUSES, 0, sysctl_timer, "Q", "");
2250 #endif /* DEBUG */
2251
2252 STATIC int
2253 sysctl_usrstack
2254 (__unused struct sysctl_oid *oidp, __unused void *arg1, __unused int arg2, struct sysctl_req *req)
2255 {
2256 return sysctl_io_number(req, (int)req->p->user_stack, sizeof(int), NULL, NULL);
2257 }
2258
2259 SYSCTL_PROC(_kern, KERN_USRSTACK32, usrstack,
2260 CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_LOCKED,
2261 0, 0, sysctl_usrstack, "I", "");
2262
2263 STATIC int
2264 sysctl_usrstack64
2265 (__unused struct sysctl_oid *oidp, __unused void *arg1, __unused int arg2, struct sysctl_req *req)
2266 {
2267 return sysctl_io_number(req, req->p->user_stack, sizeof(req->p->user_stack), NULL, NULL);
2268 }
2269
2270 SYSCTL_PROC(_kern, KERN_USRSTACK64, usrstack64,
2271 CTLTYPE_QUAD | CTLFLAG_RD | CTLFLAG_LOCKED,
2272 0, 0, sysctl_usrstack64, "Q", "");
2273
2274 #if CONFIG_COREDUMP
2275
2276 SYSCTL_STRING(_kern, KERN_COREFILE, corefile,
2277 CTLFLAG_RW | CTLFLAG_KERN | CTLFLAG_LOCKED,
2278 corefilename, sizeof(corefilename), "");
2279
2280 STATIC int
2281 sysctl_coredump
2282 (__unused struct sysctl_oid *oidp, __unused void *arg1, __unused int arg2, struct sysctl_req *req)
2283 {
2284 #ifdef SECURE_KERNEL
2285 (void)req;
2286 return (ENOTSUP);
2287 #else
2288 int new_value, changed;
2289 int error = sysctl_io_number(req, do_coredump, sizeof(int), &new_value, &changed);
2290 if (changed) {
2291 if ((new_value == 0) || (new_value == 1))
2292 do_coredump = new_value;
2293 else
2294 error = EINVAL;
2295 }
2296 return(error);
2297 #endif
2298 }
2299
2300 SYSCTL_PROC(_kern, KERN_COREDUMP, coredump,
2301 CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_LOCKED,
2302 0, 0, sysctl_coredump, "I", "");
2303
2304 STATIC int
2305 sysctl_suid_coredump
2306 (__unused struct sysctl_oid *oidp, __unused void *arg1, __unused int arg2, struct sysctl_req *req)
2307 {
2308 #ifdef SECURE_KERNEL
2309 (void)req;
2310 return (ENOTSUP);
2311 #else
2312 int new_value, changed;
2313 int error = sysctl_io_number(req, sugid_coredump, sizeof(int), &new_value, &changed);
2314 if (changed) {
2315 if ((new_value == 0) || (new_value == 1))
2316 sugid_coredump = new_value;
2317 else
2318 error = EINVAL;
2319 }
2320 return(error);
2321 #endif
2322 }
2323
2324 SYSCTL_PROC(_kern, KERN_SUGID_COREDUMP, sugid_coredump,
2325 CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_LOCKED,
2326 0, 0, sysctl_suid_coredump, "I", "");
2327
2328 #endif /* CONFIG_COREDUMP */
2329
2330 STATIC int
2331 sysctl_delayterm
2332 (__unused struct sysctl_oid *oidp, __unused void *arg1, __unused int arg2, struct sysctl_req *req)
2333 {
2334 struct proc *p = req->p;
2335 int new_value, changed;
2336 int error = sysctl_io_number(req, (req->p->p_lflag & P_LDELAYTERM)? 1: 0, sizeof(int), &new_value, &changed);
2337 if (changed) {
2338 proc_lock(p);
2339 if (new_value)
2340 req->p->p_lflag |= P_LDELAYTERM;
2341 else
2342 req->p->p_lflag &= ~P_LDELAYTERM;
2343 proc_unlock(p);
2344 }
2345 return(error);
2346 }
2347
2348 SYSCTL_PROC(_kern, KERN_PROCDELAYTERM, delayterm,
2349 CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_LOCKED,
2350 0, 0, sysctl_delayterm, "I", "");
2351
2352
2353 STATIC int
2354 sysctl_rage_vnode
2355 (__unused struct sysctl_oid *oidp, __unused void *arg1, __unused int arg2, struct sysctl_req *req)
2356 {
2357 struct proc *p = req->p;
2358 struct uthread *ut;
2359 int new_value, old_value, changed;
2360 int error;
2361
2362 ut = get_bsdthread_info(current_thread());
2363
2364 if (ut->uu_flag & UT_RAGE_VNODES)
2365 old_value = KERN_RAGE_THREAD;
2366 else if (p->p_lflag & P_LRAGE_VNODES)
2367 old_value = KERN_RAGE_PROC;
2368 else
2369 old_value = 0;
2370
2371 error = sysctl_io_number(req, old_value, sizeof(int), &new_value, &changed);
2372
2373 if (error == 0) {
2374 switch (new_value) {
2375 case KERN_RAGE_PROC:
2376 proc_lock(p);
2377 p->p_lflag |= P_LRAGE_VNODES;
2378 proc_unlock(p);
2379 break;
2380 case KERN_UNRAGE_PROC:
2381 proc_lock(p);
2382 p->p_lflag &= ~P_LRAGE_VNODES;
2383 proc_unlock(p);
2384 break;
2385
2386 case KERN_RAGE_THREAD:
2387 ut->uu_flag |= UT_RAGE_VNODES;
2388 break;
2389 case KERN_UNRAGE_THREAD:
2390 ut = get_bsdthread_info(current_thread());
2391 ut->uu_flag &= ~UT_RAGE_VNODES;
2392 break;
2393 }
2394 }
2395 return(error);
2396 }
2397
2398 SYSCTL_PROC(_kern, KERN_RAGEVNODE, rage_vnode,
2399 CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_ANYBODY | CTLFLAG_LOCKED,
2400 0, 0, sysctl_rage_vnode, "I", "");
2401
2402 /* XXX move this interface into libproc and remove this sysctl */
2403 STATIC int
2404 sysctl_setthread_cpupercent
2405 (__unused struct sysctl_oid *oidp, __unused void *arg1, __unused int arg2, struct sysctl_req *req)
2406 {
2407 int new_value, old_value;
2408 int error = 0;
2409 kern_return_t kret = KERN_SUCCESS;
2410 uint8_t percent = 0;
2411 int ms_refill = 0;
2412
2413 if (!req->newptr)
2414 return (0);
2415
2416 old_value = 0;
2417
2418 if ((error = sysctl_io_number(req, old_value, sizeof(old_value), &new_value, NULL)) != 0)
2419 return (error);
2420
2421 percent = new_value & 0xff; /* low 8 bytes for perent */
2422 ms_refill = (new_value >> 8) & 0xffffff; /* upper 24bytes represent ms refill value */
2423 if (percent > 100)
2424 return (EINVAL);
2425
2426 /*
2427 * If the caller is specifying a percentage of 0, this will unset the CPU limit, if present.
2428 */
2429 if ((kret = thread_set_cpulimit(THREAD_CPULIMIT_BLOCK, percent, ms_refill * (int)NSEC_PER_MSEC)) != 0)
2430 return (EIO);
2431
2432 return (0);
2433 }
2434
2435 SYSCTL_PROC(_kern, OID_AUTO, setthread_cpupercent,
2436 CTLTYPE_INT | CTLFLAG_WR | CTLFLAG_ANYBODY,
2437 0, 0, sysctl_setthread_cpupercent, "I", "set thread cpu percentage limit");
2438
2439
2440 STATIC int
2441 sysctl_kern_check_openevt
2442 (__unused struct sysctl_oid *oidp, __unused void *arg1, __unused int arg2, struct sysctl_req *req)
2443 {
2444 struct proc *p = req->p;
2445 int new_value, old_value, changed;
2446 int error;
2447
2448 if (p->p_flag & P_CHECKOPENEVT) {
2449 old_value = KERN_OPENEVT_PROC;
2450 } else {
2451 old_value = 0;
2452 }
2453
2454 error = sysctl_io_number(req, old_value, sizeof(int), &new_value, &changed);
2455
2456 if (error == 0) {
2457 switch (new_value) {
2458 case KERN_OPENEVT_PROC:
2459 OSBitOrAtomic(P_CHECKOPENEVT, &p->p_flag);
2460 break;
2461
2462 case KERN_UNOPENEVT_PROC:
2463 OSBitAndAtomic(~((uint32_t)P_CHECKOPENEVT), &p->p_flag);
2464 break;
2465
2466 default:
2467 error = EINVAL;
2468 }
2469 }
2470 return(error);
2471 }
2472
2473 SYSCTL_PROC(_kern, KERN_CHECKOPENEVT, check_openevt, CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_ANYBODY | CTLFLAG_LOCKED,
2474 0, 0, sysctl_kern_check_openevt, "I", "set the per-process check-open-evt flag");
2475
2476
2477
2478 STATIC int
2479 sysctl_nx
2480 (__unused struct sysctl_oid *oidp, __unused void *arg1, __unused int arg2, struct sysctl_req *req)
2481 {
2482 #ifdef SECURE_KERNEL
2483 (void)req;
2484 return ENOTSUP;
2485 #else
2486 int new_value, changed;
2487 int error;
2488
2489 error = sysctl_io_number(req, nx_enabled, sizeof(nx_enabled), &new_value, &changed);
2490 if (error)
2491 return error;
2492
2493 if (changed) {
2494 #if defined(__i386__) || defined(__x86_64__)
2495 /*
2496 * Only allow setting if NX is supported on the chip
2497 */
2498 if (!(cpuid_extfeatures() & CPUID_EXTFEATURE_XD))
2499 return ENOTSUP;
2500 #endif
2501 nx_enabled = new_value;
2502 }
2503 return(error);
2504 #endif /* SECURE_KERNEL */
2505 }
2506
2507
2508
2509 SYSCTL_PROC(_kern, KERN_NX_PROTECTION, nx,
2510 CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_KERN | CTLFLAG_LOCKED,
2511 0, 0, sysctl_nx, "I", "");
2512
2513 STATIC int
2514 sysctl_loadavg
2515 (__unused struct sysctl_oid *oidp, __unused void *arg1, __unused int arg2, struct sysctl_req *req)
2516 {
2517 if (proc_is64bit(req->p)) {
2518 struct user64_loadavg loadinfo64 = {};
2519 fill_loadavg64(&averunnable, &loadinfo64);
2520 return sysctl_io_opaque(req, &loadinfo64, sizeof(loadinfo64), NULL);
2521 } else {
2522 struct user32_loadavg loadinfo32 = {};
2523 fill_loadavg32(&averunnable, &loadinfo32);
2524 return sysctl_io_opaque(req, &loadinfo32, sizeof(loadinfo32), NULL);
2525 }
2526 }
2527
2528 SYSCTL_PROC(_vm, VM_LOADAVG, loadavg,
2529 CTLTYPE_STRUCT | CTLFLAG_RD | CTLFLAG_LOCKED,
2530 0, 0, sysctl_loadavg, "S,loadavg", "");
2531
2532 /*
2533 * Note: Thread safe; vm_map_lock protects in vm_toggle_entry_reuse()
2534 */
2535 STATIC int
2536 sysctl_vm_toggle_address_reuse(__unused struct sysctl_oid *oidp, __unused void *arg1,
2537 __unused int arg2, struct sysctl_req *req)
2538 {
2539 int old_value=0, new_value=0, error=0;
2540
2541 if(vm_toggle_entry_reuse( VM_TOGGLE_GETVALUE, &old_value ))
2542 return(error);
2543 error = sysctl_io_number(req, old_value, sizeof(int), &new_value, NULL);
2544 if (!error) {
2545 return (vm_toggle_entry_reuse(new_value, NULL));
2546 }
2547 return(error);
2548 }
2549
2550 SYSCTL_PROC(_debug, OID_AUTO, toggle_address_reuse, CTLFLAG_ANYBODY | CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_LOCKED, 0, 0, sysctl_vm_toggle_address_reuse,"I","");
2551
2552
2553 STATIC int
2554 sysctl_swapusage
2555 (__unused struct sysctl_oid *oidp, __unused void *arg1, __unused int arg2, struct sysctl_req *req)
2556 {
2557 int error;
2558 uint64_t swap_total;
2559 uint64_t swap_avail;
2560 vm_size_t swap_pagesize;
2561 boolean_t swap_encrypted;
2562 struct xsw_usage xsu = {};
2563
2564 error = macx_swapinfo(&swap_total,
2565 &swap_avail,
2566 &swap_pagesize,
2567 &swap_encrypted);
2568 if (error)
2569 return error;
2570
2571 xsu.xsu_total = swap_total;
2572 xsu.xsu_avail = swap_avail;
2573 xsu.xsu_used = swap_total - swap_avail;
2574 xsu.xsu_pagesize = swap_pagesize;
2575 xsu.xsu_encrypted = swap_encrypted;
2576 return sysctl_io_opaque(req, &xsu, sizeof(xsu), NULL);
2577 }
2578
2579
2580
2581 SYSCTL_PROC(_vm, VM_SWAPUSAGE, swapusage,
2582 CTLTYPE_STRUCT | CTLFLAG_RD | CTLFLAG_LOCKED,
2583 0, 0, sysctl_swapusage, "S,xsw_usage", "");
2584
2585 #if CONFIG_FREEZE
2586 extern void vm_page_reactivate_all_throttled(void);
2587
2588 static int
2589 sysctl_freeze_enabled SYSCTL_HANDLER_ARGS
2590 {
2591 #pragma unused(arg1, arg2)
2592 int error, val = memorystatus_freeze_enabled ? 1 : 0;
2593 boolean_t disabled;
2594
2595 error = sysctl_handle_int(oidp, &val, 0, req);
2596 if (error || !req->newptr)
2597 return (error);
2598
2599 if (VM_CONFIG_COMPRESSOR_IS_ACTIVE) {
2600 //assert(req->newptr);
2601 printf("Failed attempt to set vm.freeze_enabled sysctl\n");
2602 return EINVAL;
2603 }
2604
2605 /*
2606 * If freeze is being disabled, we need to move dirty pages out from the throttle to the active queue.
2607 */
2608 disabled = (!val && memorystatus_freeze_enabled);
2609
2610 memorystatus_freeze_enabled = val ? TRUE : FALSE;
2611
2612 if (disabled) {
2613 vm_page_reactivate_all_throttled();
2614 }
2615
2616 return (0);
2617 }
2618
2619 SYSCTL_PROC(_vm, OID_AUTO, freeze_enabled, CTLTYPE_INT|CTLFLAG_RW, &memorystatus_freeze_enabled, 0, sysctl_freeze_enabled, "I", "");
2620 #endif /* CONFIG_FREEZE */
2621
2622 /* this kernel does NOT implement shared_region_make_private_np() */
2623 SYSCTL_INT(_kern, KERN_SHREG_PRIVATIZABLE, shreg_private,
2624 CTLFLAG_RD | CTLFLAG_LOCKED,
2625 (int *)NULL, 0, "");
2626
2627 STATIC int
2628 fetch_process_cputype(
2629 proc_t cur_proc,
2630 int *name,
2631 u_int namelen,
2632 cpu_type_t *cputype)
2633 {
2634 proc_t p = PROC_NULL;
2635 int refheld = 0;
2636 cpu_type_t ret = 0;
2637 int error = 0;
2638
2639 if (namelen == 0)
2640 p = cur_proc;
2641 else if (namelen == 1) {
2642 p = proc_find(name[0]);
2643 if (p == NULL)
2644 return (EINVAL);
2645 refheld = 1;
2646 } else {
2647 error = EINVAL;
2648 goto out;
2649 }
2650
2651 ret = cpu_type() & ~CPU_ARCH_MASK;
2652 if (IS_64BIT_PROCESS(p))
2653 ret |= CPU_ARCH_ABI64;
2654
2655 *cputype = ret;
2656
2657 if (refheld != 0)
2658 proc_rele(p);
2659 out:
2660 return (error);
2661 }
2662
2663 STATIC int
2664 sysctl_sysctl_native(__unused struct sysctl_oid *oidp, void *arg1, int arg2,
2665 struct sysctl_req *req)
2666 {
2667 int error;
2668 cpu_type_t proc_cputype = 0;
2669 if ((error = fetch_process_cputype(req->p, (int *)arg1, arg2, &proc_cputype)) != 0)
2670 return error;
2671 int res = 1;
2672 if ((proc_cputype & ~CPU_ARCH_MASK) != (cpu_type() & ~CPU_ARCH_MASK))
2673 res = 0;
2674 return SYSCTL_OUT(req, &res, sizeof(res));
2675 }
2676 SYSCTL_PROC(_sysctl, OID_AUTO, proc_native, CTLTYPE_NODE|CTLFLAG_RD | CTLFLAG_LOCKED, 0, 0, sysctl_sysctl_native ,"I","proc_native");
2677
2678 STATIC int
2679 sysctl_sysctl_cputype(__unused struct sysctl_oid *oidp, void *arg1, int arg2,
2680 struct sysctl_req *req)
2681 {
2682 int error;
2683 cpu_type_t proc_cputype = 0;
2684 if ((error = fetch_process_cputype(req->p, (int *)arg1, arg2, &proc_cputype)) != 0)
2685 return error;
2686 return SYSCTL_OUT(req, &proc_cputype, sizeof(proc_cputype));
2687 }
2688 SYSCTL_PROC(_sysctl, OID_AUTO, proc_cputype, CTLTYPE_NODE|CTLFLAG_RD | CTLFLAG_LOCKED, 0, 0, sysctl_sysctl_cputype ,"I","proc_cputype");
2689
2690 STATIC int
2691 sysctl_safeboot
2692 (__unused struct sysctl_oid *oidp, __unused void *arg1, __unused int arg2, struct sysctl_req *req)
2693 {
2694 return sysctl_io_number(req, boothowto & RB_SAFEBOOT ? 1 : 0, sizeof(int), NULL, NULL);
2695 }
2696
2697 SYSCTL_PROC(_kern, KERN_SAFEBOOT, safeboot,
2698 CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_LOCKED,
2699 0, 0, sysctl_safeboot, "I", "");
2700
2701 STATIC int
2702 sysctl_singleuser
2703 (__unused struct sysctl_oid *oidp, __unused void *arg1, __unused int arg2, struct sysctl_req *req)
2704 {
2705 return sysctl_io_number(req, boothowto & RB_SINGLE ? 1 : 0, sizeof(int), NULL, NULL);
2706 }
2707
2708 SYSCTL_PROC(_kern, OID_AUTO, singleuser,
2709 CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_LOCKED,
2710 0, 0, sysctl_singleuser, "I", "");
2711
2712 STATIC int sysctl_minimalboot
2713 (__unused struct sysctl_oid *oidp, __unused void *arg1, __unused int arg2, struct sysctl_req *req)
2714 {
2715 return sysctl_io_number(req, minimalboot, sizeof(int), NULL, NULL);
2716 }
2717
2718 SYSCTL_PROC(_kern, OID_AUTO, minimalboot,
2719 CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_LOCKED,
2720 0, 0, sysctl_minimalboot, "I", "");
2721
2722 /*
2723 * Controls for debugging affinity sets - see osfmk/kern/affinity.c
2724 */
2725 extern boolean_t affinity_sets_enabled;
2726 extern int affinity_sets_mapping;
2727
2728 SYSCTL_INT (_kern, OID_AUTO, affinity_sets_enabled,
2729 CTLFLAG_RW | CTLFLAG_LOCKED, (int *) &affinity_sets_enabled, 0, "hinting enabled");
2730 SYSCTL_INT (_kern, OID_AUTO, affinity_sets_mapping,
2731 CTLFLAG_RW | CTLFLAG_LOCKED, &affinity_sets_mapping, 0, "mapping policy");
2732
2733 /*
2734 * Boolean indicating if KASLR is active.
2735 */
2736 STATIC int
2737 sysctl_slide
2738 (__unused struct sysctl_oid *oidp, __unused void *arg1, __unused int arg2, struct sysctl_req *req)
2739 {
2740 uint32_t slide;
2741
2742 slide = vm_kernel_slide ? 1 : 0;
2743
2744 return sysctl_io_number( req, slide, sizeof(int), NULL, NULL);
2745 }
2746
2747 SYSCTL_PROC(_kern, OID_AUTO, slide,
2748 CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_LOCKED,
2749 0, 0, sysctl_slide, "I", "");
2750
2751 /*
2752 * Limit on total memory users can wire.
2753 *
2754 * vm_global_user_wire_limit - system wide limit on wired memory from all processes combined.
2755 *
2756 * vm_user_wire_limit - per address space limit on wired memory. This puts a cap on the process's rlimit value.
2757 *
2758 * These values are initialized to reasonable defaults at boot time based on the available physical memory in
2759 * kmem_init().
2760 *
2761 * All values are in bytes.
2762 */
2763
2764 vm_map_size_t vm_global_no_user_wire_amount;
2765 vm_map_size_t vm_global_user_wire_limit;
2766 vm_map_size_t vm_user_wire_limit;
2767
2768 /*
2769 * There needs to be a more automatic/elegant way to do this
2770 */
2771 #if defined(__ARM__)
2772 SYSCTL_INT(_vm, OID_AUTO, global_no_user_wire_amount, CTLFLAG_RW | CTLFLAG_LOCKED, &vm_global_no_user_wire_amount, 0, "");
2773 SYSCTL_INT(_vm, OID_AUTO, global_user_wire_limit, CTLFLAG_RW | CTLFLAG_LOCKED, &vm_global_user_wire_limit, 0, "");
2774 SYSCTL_INT(_vm, OID_AUTO, user_wire_limit, CTLFLAG_RW | CTLFLAG_LOCKED, &vm_user_wire_limit, 0, "");
2775 #else
2776 SYSCTL_QUAD(_vm, OID_AUTO, global_no_user_wire_amount, CTLFLAG_RW | CTLFLAG_LOCKED, &vm_global_no_user_wire_amount, "");
2777 SYSCTL_QUAD(_vm, OID_AUTO, global_user_wire_limit, CTLFLAG_RW | CTLFLAG_LOCKED, &vm_global_user_wire_limit, "");
2778 SYSCTL_QUAD(_vm, OID_AUTO, user_wire_limit, CTLFLAG_RW | CTLFLAG_LOCKED, &vm_user_wire_limit, "");
2779 #endif
2780
2781 extern int vm_map_copy_overwrite_aligned_src_not_internal;
2782 extern int vm_map_copy_overwrite_aligned_src_not_symmetric;
2783 extern int vm_map_copy_overwrite_aligned_src_large;
2784 SYSCTL_INT(_vm, OID_AUTO, vm_copy_src_not_internal, CTLFLAG_RD | CTLFLAG_LOCKED, &vm_map_copy_overwrite_aligned_src_not_internal, 0, "");
2785 SYSCTL_INT(_vm, OID_AUTO, vm_copy_src_not_symmetric, CTLFLAG_RD | CTLFLAG_LOCKED, &vm_map_copy_overwrite_aligned_src_not_symmetric, 0, "");
2786 SYSCTL_INT(_vm, OID_AUTO, vm_copy_src_large, CTLFLAG_RD | CTLFLAG_LOCKED, &vm_map_copy_overwrite_aligned_src_large, 0, "");
2787
2788
2789 extern uint32_t vm_page_external_count;
2790 extern uint32_t vm_page_filecache_min;
2791
2792 SYSCTL_INT(_vm, OID_AUTO, vm_page_external_count, CTLFLAG_RD | CTLFLAG_LOCKED, &vm_page_external_count, 0, "");
2793 SYSCTL_INT(_vm, OID_AUTO, vm_page_filecache_min, CTLFLAG_RW | CTLFLAG_LOCKED, &vm_page_filecache_min, 0, "");
2794
2795 extern int vm_compressor_mode;
2796 extern int vm_compressor_is_active;
2797 extern int vm_compressor_available;
2798 extern uint32_t vm_ripe_target_age;
2799 extern uint32_t swapout_target_age;
2800 extern int64_t compressor_bytes_used;
2801 extern int64_t c_segment_input_bytes;
2802 extern int64_t c_segment_compressed_bytes;
2803 extern uint32_t compressor_eval_period_in_msecs;
2804 extern uint32_t compressor_sample_min_in_msecs;
2805 extern uint32_t compressor_sample_max_in_msecs;
2806 extern uint32_t compressor_thrashing_threshold_per_10msecs;
2807 extern uint32_t compressor_thrashing_min_per_10msecs;
2808 extern uint32_t vm_compressor_minorcompact_threshold_divisor;
2809 extern uint32_t vm_compressor_majorcompact_threshold_divisor;
2810 extern uint32_t vm_compressor_unthrottle_threshold_divisor;
2811 extern uint32_t vm_compressor_catchup_threshold_divisor;
2812 extern uint32_t vm_compressor_time_thread;
2813 #if DEVELOPMENT || DEBUG
2814 extern vmct_stats_t vmct_stats;
2815 #endif
2816
2817 SYSCTL_QUAD(_vm, OID_AUTO, compressor_input_bytes, CTLFLAG_RD | CTLFLAG_LOCKED, &c_segment_input_bytes, "");
2818 SYSCTL_QUAD(_vm, OID_AUTO, compressor_compressed_bytes, CTLFLAG_RD | CTLFLAG_LOCKED, &c_segment_compressed_bytes, "");
2819 SYSCTL_QUAD(_vm, OID_AUTO, compressor_bytes_used, CTLFLAG_RD | CTLFLAG_LOCKED, &compressor_bytes_used, "");
2820
2821 SYSCTL_INT(_vm, OID_AUTO, compressor_mode, CTLFLAG_RD | CTLFLAG_LOCKED, &vm_compressor_mode, 0, "");
2822 SYSCTL_INT(_vm, OID_AUTO, compressor_is_active, CTLFLAG_RD | CTLFLAG_LOCKED, &vm_compressor_is_active, 0, "");
2823 SYSCTL_INT(_vm, OID_AUTO, compressor_swapout_target_age, CTLFLAG_RD | CTLFLAG_LOCKED, &swapout_target_age, 0, "");
2824 SYSCTL_INT(_vm, OID_AUTO, compressor_available, CTLFLAG_RD | CTLFLAG_LOCKED, &vm_compressor_available, 0, "");
2825
2826 SYSCTL_INT(_vm, OID_AUTO, vm_ripe_target_age_in_secs, CTLFLAG_RW | CTLFLAG_LOCKED, &vm_ripe_target_age, 0, "");
2827
2828 SYSCTL_INT(_vm, OID_AUTO, compressor_eval_period_in_msecs, CTLFLAG_RW | CTLFLAG_LOCKED, &compressor_eval_period_in_msecs, 0, "");
2829 SYSCTL_INT(_vm, OID_AUTO, compressor_sample_min_in_msecs, CTLFLAG_RW | CTLFLAG_LOCKED, &compressor_sample_min_in_msecs, 0, "");
2830 SYSCTL_INT(_vm, OID_AUTO, compressor_sample_max_in_msecs, CTLFLAG_RW | CTLFLAG_LOCKED, &compressor_sample_max_in_msecs, 0, "");
2831 SYSCTL_INT(_vm, OID_AUTO, compressor_thrashing_threshold_per_10msecs, CTLFLAG_RW | CTLFLAG_LOCKED, &compressor_thrashing_threshold_per_10msecs, 0, "");
2832 SYSCTL_INT(_vm, OID_AUTO, compressor_thrashing_min_per_10msecs, CTLFLAG_RW | CTLFLAG_LOCKED, &compressor_thrashing_min_per_10msecs, 0, "");
2833 SYSCTL_INT(_vm, OID_AUTO, compressor_minorcompact_threshold_divisor, CTLFLAG_RW | CTLFLAG_LOCKED, &vm_compressor_minorcompact_threshold_divisor, 0, "");
2834 SYSCTL_INT(_vm, OID_AUTO, compressor_majorcompact_threshold_divisor, CTLFLAG_RW | CTLFLAG_LOCKED, &vm_compressor_majorcompact_threshold_divisor, 0, "");
2835 SYSCTL_INT(_vm, OID_AUTO, compressor_unthrottle_threshold_divisor, CTLFLAG_RW | CTLFLAG_LOCKED, &vm_compressor_unthrottle_threshold_divisor, 0, "");
2836 SYSCTL_INT(_vm, OID_AUTO, compressor_catchup_threshold_divisor, CTLFLAG_RW | CTLFLAG_LOCKED, &vm_compressor_catchup_threshold_divisor, 0, "");
2837
2838 SYSCTL_STRING(_vm, OID_AUTO, swapfileprefix, CTLFLAG_RW | CTLFLAG_KERN | CTLFLAG_LOCKED, swapfilename, sizeof(swapfilename) - SWAPFILENAME_INDEX_LEN, "");
2839
2840 SYSCTL_INT(_vm, OID_AUTO, compressor_timing_enabled, CTLFLAG_RW | CTLFLAG_LOCKED, &vm_compressor_time_thread, 0, "");
2841
2842 #if DEVELOPMENT || DEBUG
2843 SYSCTL_QUAD(_vm, OID_AUTO, compressor_thread_runtime0, CTLFLAG_RD | CTLFLAG_LOCKED, &vmct_stats.vmct_runtimes[0], "");
2844 SYSCTL_QUAD(_vm, OID_AUTO, compressor_thread_runtime1, CTLFLAG_RD | CTLFLAG_LOCKED, &vmct_stats.vmct_runtimes[1], "");
2845
2846 SYSCTL_QUAD(_vm, OID_AUTO, compressor_threads_total, CTLFLAG_RD | CTLFLAG_LOCKED, &vmct_stats.vmct_cthreads_total, "");
2847
2848 SYSCTL_QUAD(_vm, OID_AUTO, compressor_thread_pages0, CTLFLAG_RD | CTLFLAG_LOCKED, &vmct_stats.vmct_pages[0], "");
2849 SYSCTL_QUAD(_vm, OID_AUTO, compressor_thread_pages1, CTLFLAG_RD | CTLFLAG_LOCKED, &vmct_stats.vmct_pages[1], "");
2850
2851 SYSCTL_QUAD(_vm, OID_AUTO, compressor_thread_iterations0, CTLFLAG_RD | CTLFLAG_LOCKED, &vmct_stats.vmct_iterations[0], "");
2852 SYSCTL_QUAD(_vm, OID_AUTO, compressor_thread_iterations1, CTLFLAG_RD | CTLFLAG_LOCKED, &vmct_stats.vmct_iterations[1], "");
2853
2854 SYSCTL_INT(_vm, OID_AUTO, compressor_thread_minpages0, CTLFLAG_RD | CTLFLAG_LOCKED, &vmct_stats.vmct_minpages[0], 0, "");
2855 SYSCTL_INT(_vm, OID_AUTO, compressor_thread_minpages1, CTLFLAG_RD | CTLFLAG_LOCKED, &vmct_stats.vmct_minpages[1], 0, "");
2856
2857 SYSCTL_INT(_vm, OID_AUTO, compressor_thread_maxpages0, CTLFLAG_RD | CTLFLAG_LOCKED, &vmct_stats.vmct_maxpages[0], 0, "");
2858 SYSCTL_INT(_vm, OID_AUTO, compressor_thread_maxpages1, CTLFLAG_RD | CTLFLAG_LOCKED, &vmct_stats.vmct_maxpages[1], 0, "");
2859
2860 #endif
2861
2862 SYSCTL_QUAD(_vm, OID_AUTO, lz4_compressions, CTLFLAG_RD | CTLFLAG_LOCKED, &compressor_stats.lz4_compressions, "");
2863 SYSCTL_QUAD(_vm, OID_AUTO, lz4_compression_failures, CTLFLAG_RD | CTLFLAG_LOCKED, &compressor_stats.lz4_compression_failures, "");
2864 SYSCTL_QUAD(_vm, OID_AUTO, lz4_compressed_bytes, CTLFLAG_RD | CTLFLAG_LOCKED, &compressor_stats.lz4_compressed_bytes, "");
2865 SYSCTL_QUAD(_vm, OID_AUTO, lz4_wk_compression_delta, CTLFLAG_RD | CTLFLAG_LOCKED, &compressor_stats.lz4_wk_compression_delta, "");
2866 SYSCTL_QUAD(_vm, OID_AUTO, lz4_wk_compression_negative_delta, CTLFLAG_RD | CTLFLAG_LOCKED, &compressor_stats.lz4_wk_compression_negative_delta, "");
2867
2868 SYSCTL_QUAD(_vm, OID_AUTO, lz4_decompressions, CTLFLAG_RD | CTLFLAG_LOCKED, &compressor_stats.lz4_decompressions, "");
2869 SYSCTL_QUAD(_vm, OID_AUTO, lz4_decompressed_bytes, CTLFLAG_RD | CTLFLAG_LOCKED, &compressor_stats.lz4_decompressed_bytes, "");
2870
2871 SYSCTL_QUAD(_vm, OID_AUTO, uc_decompressions, CTLFLAG_RD | CTLFLAG_LOCKED, &compressor_stats.uc_decompressions, "");
2872
2873 SYSCTL_QUAD(_vm, OID_AUTO, wk_compressions, CTLFLAG_RD | CTLFLAG_LOCKED, &compressor_stats.wk_compressions, "");
2874
2875 SYSCTL_QUAD(_vm, OID_AUTO, wk_catime, CTLFLAG_RD | CTLFLAG_LOCKED, &compressor_stats.wk_cabstime, "");
2876
2877 SYSCTL_QUAD(_vm, OID_AUTO, wkh_catime, CTLFLAG_RD | CTLFLAG_LOCKED, &compressor_stats.wkh_cabstime, "");
2878 SYSCTL_QUAD(_vm, OID_AUTO, wkh_compressions, CTLFLAG_RD | CTLFLAG_LOCKED, &compressor_stats.wkh_compressions, "");
2879
2880 SYSCTL_QUAD(_vm, OID_AUTO, wks_catime, CTLFLAG_RD | CTLFLAG_LOCKED, &compressor_stats.wks_cabstime, "");
2881 SYSCTL_QUAD(_vm, OID_AUTO, wks_compressions, CTLFLAG_RD | CTLFLAG_LOCKED, &compressor_stats.wks_compressions, "");
2882
2883 SYSCTL_QUAD(_vm, OID_AUTO, wk_compressions_exclusive, CTLFLAG_RD | CTLFLAG_LOCKED, &compressor_stats.wk_compressions_exclusive, "");
2884 SYSCTL_QUAD(_vm, OID_AUTO, wk_sv_compressions, CTLFLAG_RD | CTLFLAG_LOCKED, &compressor_stats.wk_sv_compressions, "");
2885 SYSCTL_QUAD(_vm, OID_AUTO, wk_mzv_compressions, CTLFLAG_RD | CTLFLAG_LOCKED, &compressor_stats.wk_mzv_compressions, "");
2886 SYSCTL_QUAD(_vm, OID_AUTO, wk_compression_failures, CTLFLAG_RD | CTLFLAG_LOCKED, &compressor_stats.wk_compression_failures, "");
2887 SYSCTL_QUAD(_vm, OID_AUTO, wk_compressed_bytes_exclusive, CTLFLAG_RD | CTLFLAG_LOCKED, &compressor_stats.wk_compressed_bytes_exclusive, "");
2888 SYSCTL_QUAD(_vm, OID_AUTO, wk_compressed_bytes_total, CTLFLAG_RD | CTLFLAG_LOCKED, &compressor_stats.wk_compressed_bytes_total, "");
2889
2890 SYSCTL_QUAD(_vm, OID_AUTO, wks_compressed_bytes, CTLFLAG_RD | CTLFLAG_LOCKED, &compressor_stats.wks_compressed_bytes, "");
2891 SYSCTL_QUAD(_vm, OID_AUTO, wks_compression_failures, CTLFLAG_RD | CTLFLAG_LOCKED, &compressor_stats.wks_compression_failures, "");
2892 SYSCTL_QUAD(_vm, OID_AUTO, wks_sv_compressions, CTLFLAG_RD | CTLFLAG_LOCKED, &compressor_stats.wks_sv_compressions, "");
2893
2894
2895 SYSCTL_QUAD(_vm, OID_AUTO, wk_decompressions, CTLFLAG_RD | CTLFLAG_LOCKED, &compressor_stats.wk_decompressions, "");
2896
2897 SYSCTL_QUAD(_vm, OID_AUTO, wk_datime, CTLFLAG_RD | CTLFLAG_LOCKED, &compressor_stats.wk_dabstime, "");
2898
2899 SYSCTL_QUAD(_vm, OID_AUTO, wkh_datime, CTLFLAG_RD | CTLFLAG_LOCKED, &compressor_stats.wkh_dabstime, "");
2900 SYSCTL_QUAD(_vm, OID_AUTO, wkh_decompressions, CTLFLAG_RD | CTLFLAG_LOCKED, &compressor_stats.wkh_decompressions, "");
2901
2902 SYSCTL_QUAD(_vm, OID_AUTO, wks_datime, CTLFLAG_RD | CTLFLAG_LOCKED, &compressor_stats.wks_dabstime, "");
2903 SYSCTL_QUAD(_vm, OID_AUTO, wks_decompressions, CTLFLAG_RD | CTLFLAG_LOCKED, &compressor_stats.wks_decompressions, "");
2904
2905 SYSCTL_QUAD(_vm, OID_AUTO, wk_decompressed_bytes, CTLFLAG_RD | CTLFLAG_LOCKED, &compressor_stats.wk_decompressed_bytes, "");
2906 SYSCTL_QUAD(_vm, OID_AUTO, wk_sv_decompressions, CTLFLAG_RD | CTLFLAG_LOCKED, &compressor_stats.wk_sv_decompressions, "");
2907
2908 SYSCTL_INT(_vm, OID_AUTO, lz4_threshold, CTLFLAG_RW | CTLFLAG_LOCKED, &vmctune.lz4_threshold, 0, "");
2909 SYSCTL_INT(_vm, OID_AUTO, wkdm_reeval_threshold, CTLFLAG_RW | CTLFLAG_LOCKED, &vmctune.wkdm_reeval_threshold, 0, "");
2910 SYSCTL_INT(_vm, OID_AUTO, lz4_max_failure_skips, CTLFLAG_RW | CTLFLAG_LOCKED, &vmctune.lz4_max_failure_skips, 0, "");
2911 SYSCTL_INT(_vm, OID_AUTO, lz4_max_failure_run_length, CTLFLAG_RW | CTLFLAG_LOCKED, &vmctune.lz4_max_failure_run_length, 0, "");
2912 SYSCTL_INT(_vm, OID_AUTO, lz4_max_preselects, CTLFLAG_RW | CTLFLAG_LOCKED, &vmctune.lz4_max_preselects, 0, "");
2913 SYSCTL_INT(_vm, OID_AUTO, lz4_run_preselection_threshold, CTLFLAG_RW | CTLFLAG_LOCKED, &vmctune.lz4_run_preselection_threshold, 0, "");
2914 SYSCTL_INT(_vm, OID_AUTO, lz4_run_continue_bytes, CTLFLAG_RW | CTLFLAG_LOCKED, &vmctune.lz4_run_continue_bytes, 0, "");
2915 SYSCTL_INT(_vm, OID_AUTO, lz4_profitable_bytes, CTLFLAG_RW | CTLFLAG_LOCKED, &vmctune.lz4_profitable_bytes, 0, "");
2916 #if DEVELOPMENT || DEBUG
2917 extern int vm_compressor_current_codec;
2918 extern int vm_compressor_test_seg_wp;
2919 extern boolean_t vm_compressor_force_sw_wkdm;
2920 SYSCTL_INT(_vm, OID_AUTO, compressor_codec, CTLFLAG_RW | CTLFLAG_LOCKED, &vm_compressor_current_codec, 0, "");
2921 SYSCTL_INT(_vm, OID_AUTO, compressor_test_wp, CTLFLAG_RW | CTLFLAG_LOCKED, &vm_compressor_test_seg_wp, 0, "");
2922
2923 SYSCTL_INT(_vm, OID_AUTO, wksw_force, CTLFLAG_RW | CTLFLAG_LOCKED, &vm_compressor_force_sw_wkdm, 0, "");
2924 extern int precompy, wkswhw;
2925
2926 SYSCTL_INT(_vm, OID_AUTO, precompy, CTLFLAG_RW | CTLFLAG_LOCKED, &precompy, 0, "");
2927 SYSCTL_INT(_vm, OID_AUTO, wkswhw, CTLFLAG_RW | CTLFLAG_LOCKED, &wkswhw, 0, "");
2928 extern unsigned int vm_ktrace_enabled;
2929 SYSCTL_INT(_vm, OID_AUTO, vm_ktrace, CTLFLAG_RW | CTLFLAG_LOCKED, &vm_ktrace_enabled, 0, "");
2930 #endif
2931
2932 #if CONFIG_PHANTOM_CACHE
2933 extern uint32_t phantom_cache_thrashing_threshold;
2934 extern uint32_t phantom_cache_eval_period_in_msecs;
2935 extern uint32_t phantom_cache_thrashing_threshold_ssd;
2936
2937
2938 SYSCTL_INT(_vm, OID_AUTO, phantom_cache_eval_period_in_msecs, CTLFLAG_RW | CTLFLAG_LOCKED, &phantom_cache_eval_period_in_msecs, 0, "");
2939 SYSCTL_INT(_vm, OID_AUTO, phantom_cache_thrashing_threshold, CTLFLAG_RW | CTLFLAG_LOCKED, &phantom_cache_thrashing_threshold, 0, "");
2940 SYSCTL_INT(_vm, OID_AUTO, phantom_cache_thrashing_threshold_ssd, CTLFLAG_RW | CTLFLAG_LOCKED, &phantom_cache_thrashing_threshold_ssd, 0, "");
2941 #endif
2942
2943 #if CONFIG_BACKGROUND_QUEUE
2944
2945 extern uint32_t vm_page_background_count;
2946 extern uint32_t vm_page_background_target;
2947 extern uint32_t vm_page_background_internal_count;
2948 extern uint32_t vm_page_background_external_count;
2949 extern uint32_t vm_page_background_mode;
2950 extern uint32_t vm_page_background_exclude_external;
2951 extern uint64_t vm_page_background_promoted_count;
2952 extern uint64_t vm_pageout_considered_bq_internal;
2953 extern uint64_t vm_pageout_considered_bq_external;
2954 extern uint64_t vm_pageout_rejected_bq_internal;
2955 extern uint64_t vm_pageout_rejected_bq_external;
2956
2957 SYSCTL_INT(_vm, OID_AUTO, vm_page_background_mode, CTLFLAG_RW | CTLFLAG_LOCKED, &vm_page_background_mode, 0, "");
2958 SYSCTL_INT(_vm, OID_AUTO, vm_page_background_exclude_external, CTLFLAG_RW | CTLFLAG_LOCKED, &vm_page_background_exclude_external, 0, "");
2959 SYSCTL_INT(_vm, OID_AUTO, vm_page_background_target, CTLFLAG_RW | CTLFLAG_LOCKED, &vm_page_background_target, 0, "");
2960 SYSCTL_INT(_vm, OID_AUTO, vm_page_background_count, CTLFLAG_RD | CTLFLAG_LOCKED, &vm_page_background_count, 0, "");
2961 SYSCTL_INT(_vm, OID_AUTO, vm_page_background_internal_count, CTLFLAG_RD | CTLFLAG_LOCKED, &vm_page_background_internal_count, 0, "");
2962 SYSCTL_INT(_vm, OID_AUTO, vm_page_background_external_count, CTLFLAG_RD | CTLFLAG_LOCKED, &vm_page_background_external_count, 0, "");
2963
2964 SYSCTL_QUAD(_vm, OID_AUTO, vm_page_background_promoted_count, CTLFLAG_RD | CTLFLAG_LOCKED, &vm_page_background_promoted_count, "");
2965 SYSCTL_QUAD(_vm, OID_AUTO, vm_pageout_considered_bq_internal, CTLFLAG_RD | CTLFLAG_LOCKED, &vm_pageout_considered_bq_internal, "");
2966 SYSCTL_QUAD(_vm, OID_AUTO, vm_pageout_considered_bq_external, CTLFLAG_RD | CTLFLAG_LOCKED, &vm_pageout_considered_bq_external, "");
2967 SYSCTL_QUAD(_vm, OID_AUTO, vm_pageout_rejected_bq_internal, CTLFLAG_RD | CTLFLAG_LOCKED, &vm_pageout_rejected_bq_internal, "");
2968 SYSCTL_QUAD(_vm, OID_AUTO, vm_pageout_rejected_bq_external, CTLFLAG_RD | CTLFLAG_LOCKED, &vm_pageout_rejected_bq_external, "");
2969
2970 #endif
2971
2972 #if (DEVELOPMENT || DEBUG)
2973
2974 SYSCTL_UINT(_vm, OID_AUTO, vm_page_creation_throttled_hard,
2975 CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED,
2976 &vm_page_creation_throttled_hard, 0, "");
2977
2978 SYSCTL_UINT(_vm, OID_AUTO, vm_page_creation_throttled_soft,
2979 CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED,
2980 &vm_page_creation_throttled_soft, 0, "");
2981
2982 extern uint32_t vm_pageout_memorystatus_fb_factor_nr;
2983 extern uint32_t vm_pageout_memorystatus_fb_factor_dr;
2984 SYSCTL_INT(_vm, OID_AUTO, vm_pageout_memorystatus_fb_factor_nr, CTLFLAG_RW | CTLFLAG_LOCKED, &vm_pageout_memorystatus_fb_factor_nr, 0, "");
2985 SYSCTL_INT(_vm, OID_AUTO, vm_pageout_memorystatus_fb_factor_dr, CTLFLAG_RW | CTLFLAG_LOCKED, &vm_pageout_memorystatus_fb_factor_dr, 0, "");
2986
2987 extern uint32_t vm_grab_anon_overrides;
2988 extern uint32_t vm_grab_anon_nops;
2989
2990 SYSCTL_INT(_vm, OID_AUTO, vm_grab_anon_overrides, CTLFLAG_RW | CTLFLAG_LOCKED, &vm_grab_anon_overrides, 0, "");
2991 SYSCTL_INT(_vm, OID_AUTO, vm_grab_anon_nops, CTLFLAG_RW | CTLFLAG_LOCKED, &vm_grab_anon_nops, 0, "");
2992
2993 /* log message counters for persistence mode */
2994 extern uint32_t oslog_p_total_msgcount;
2995 extern uint32_t oslog_p_metadata_saved_msgcount;
2996 extern uint32_t oslog_p_metadata_dropped_msgcount;
2997 extern uint32_t oslog_p_error_count;
2998 extern uint32_t oslog_p_saved_msgcount;
2999 extern uint32_t oslog_p_dropped_msgcount;
3000 extern uint32_t oslog_p_boot_dropped_msgcount;
3001
3002 /* log message counters for streaming mode */
3003 extern uint32_t oslog_s_total_msgcount;
3004 extern uint32_t oslog_s_metadata_msgcount;
3005 extern uint32_t oslog_s_error_count;
3006 extern uint32_t oslog_s_streamed_msgcount;
3007 extern uint32_t oslog_s_dropped_msgcount;
3008
3009 SYSCTL_UINT(_debug, OID_AUTO, oslog_p_total_msgcount, CTLFLAG_ANYBODY | CTLFLAG_RD | CTLFLAG_LOCKED, &oslog_p_total_msgcount, 0, "");
3010 SYSCTL_UINT(_debug, OID_AUTO, oslog_p_metadata_saved_msgcount, CTLFLAG_ANYBODY | CTLFLAG_RD | CTLFLAG_LOCKED, &oslog_p_metadata_saved_msgcount, 0, "");
3011 SYSCTL_UINT(_debug, OID_AUTO, oslog_p_metadata_dropped_msgcount, CTLFLAG_ANYBODY | CTLFLAG_RD | CTLFLAG_LOCKED, &oslog_p_metadata_dropped_msgcount, 0, "");
3012 SYSCTL_UINT(_debug, OID_AUTO, oslog_p_error_count, CTLFLAG_ANYBODY | CTLFLAG_RD | CTLFLAG_LOCKED, &oslog_p_error_count, 0, "");
3013 SYSCTL_UINT(_debug, OID_AUTO, oslog_p_saved_msgcount, CTLFLAG_ANYBODY | CTLFLAG_RD | CTLFLAG_LOCKED, &oslog_p_saved_msgcount, 0, "");
3014 SYSCTL_UINT(_debug, OID_AUTO, oslog_p_dropped_msgcount, CTLFLAG_ANYBODY | CTLFLAG_RD | CTLFLAG_LOCKED, &oslog_p_dropped_msgcount, 0, "");
3015 SYSCTL_UINT(_debug, OID_AUTO, oslog_p_boot_dropped_msgcount, CTLFLAG_ANYBODY | CTLFLAG_RD | CTLFLAG_LOCKED, &oslog_p_boot_dropped_msgcount, 0, "");
3016
3017 SYSCTL_UINT(_debug, OID_AUTO, oslog_s_total_msgcount, CTLFLAG_ANYBODY | CTLFLAG_RD | CTLFLAG_LOCKED, &oslog_s_total_msgcount, 0, "");
3018 SYSCTL_UINT(_debug, OID_AUTO, oslog_s_metadata_msgcount, CTLFLAG_ANYBODY | CTLFLAG_RD | CTLFLAG_LOCKED, &oslog_s_metadata_msgcount, 0, "");
3019 SYSCTL_UINT(_debug, OID_AUTO, oslog_s_error_count, CTLFLAG_ANYBODY | CTLFLAG_RD | CTLFLAG_LOCKED, &oslog_s_error_count, 0, "");
3020 SYSCTL_UINT(_debug, OID_AUTO, oslog_s_streamed_msgcount, CTLFLAG_ANYBODY | CTLFLAG_RD | CTLFLAG_LOCKED, &oslog_s_streamed_msgcount, 0, "");
3021 SYSCTL_UINT(_debug, OID_AUTO, oslog_s_dropped_msgcount, CTLFLAG_ANYBODY | CTLFLAG_RD | CTLFLAG_LOCKED, &oslog_s_dropped_msgcount, 0, "");
3022
3023
3024 #endif /* DEVELOPMENT || DEBUG */
3025
3026 /*
3027 * Enable tracing of voucher contents
3028 */
3029 extern uint32_t ipc_voucher_trace_contents;
3030
3031 SYSCTL_INT (_kern, OID_AUTO, ipc_voucher_trace_contents,
3032 CTLFLAG_RW | CTLFLAG_LOCKED, &ipc_voucher_trace_contents, 0, "Enable tracing voucher contents");
3033
3034 /*
3035 * Kernel stack size and depth
3036 */
3037 SYSCTL_INT (_kern, OID_AUTO, stack_size,
3038 CTLFLAG_RD | CTLFLAG_LOCKED, (int *) &kernel_stack_size, 0, "Kernel stack size");
3039 SYSCTL_INT (_kern, OID_AUTO, stack_depth_max,
3040 CTLFLAG_RD | CTLFLAG_LOCKED, (int *) &kernel_stack_depth_max, 0, "Max kernel stack depth at interrupt or context switch");
3041
3042 extern unsigned int kern_feature_overrides;
3043 SYSCTL_INT (_kern, OID_AUTO, kern_feature_overrides,
3044 CTLFLAG_RD | CTLFLAG_LOCKED, &kern_feature_overrides, 0, "Kernel feature override mask");
3045
3046 /*
3047 * enable back trace for port allocations
3048 */
3049 extern int ipc_portbt;
3050
3051 SYSCTL_INT(_kern, OID_AUTO, ipc_portbt,
3052 CTLFLAG_RW | CTLFLAG_KERN | CTLFLAG_LOCKED,
3053 &ipc_portbt, 0, "");
3054
3055 /*
3056 * Scheduler sysctls
3057 */
3058
3059 SYSCTL_STRING(_kern, OID_AUTO, sched,
3060 CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED,
3061 sched_string, sizeof(sched_string),
3062 "Timeshare scheduler implementation");
3063
3064 /*
3065 * Only support runtime modification on embedded platforms
3066 * with development config enabled
3067 */
3068 #if CONFIG_EMBEDDED
3069 #if !SECURE_KERNEL
3070 extern int precise_user_kernel_time;
3071 SYSCTL_INT(_kern, OID_AUTO, precise_user_kernel_time,
3072 CTLFLAG_RW | CTLFLAG_LOCKED,
3073 &precise_user_kernel_time, 0, "Precise accounting of kernel vs. user time");
3074 #endif
3075 #endif
3076
3077
3078 /* Parameters related to timer coalescing tuning, to be replaced
3079 * with a dedicated systemcall in the future.
3080 */
3081 /* Enable processing pending timers in the context of any other interrupt
3082 * Coalescing tuning parameters for various thread/task attributes */
3083 STATIC int
3084 sysctl_timer_user_us_kernel_abstime SYSCTL_HANDLER_ARGS
3085 {
3086 #pragma unused(oidp)
3087 int size = arg2; /* subcommand*/
3088 int error;
3089 int changed = 0;
3090 uint64_t old_value_ns;
3091 uint64_t new_value_ns;
3092 uint64_t value_abstime;
3093 if (size == sizeof(uint32_t))
3094 value_abstime = *((uint32_t *)arg1);
3095 else if (size == sizeof(uint64_t))
3096 value_abstime = *((uint64_t *)arg1);
3097 else return ENOTSUP;
3098
3099 absolutetime_to_nanoseconds(value_abstime, &old_value_ns);
3100 error = sysctl_io_number(req, old_value_ns, sizeof(old_value_ns), &new_value_ns, &changed);
3101 if ((error) || (!changed))
3102 return error;
3103
3104 nanoseconds_to_absolutetime(new_value_ns, &value_abstime);
3105 if (size == sizeof(uint32_t))
3106 *((uint32_t *)arg1) = (uint32_t)value_abstime;
3107 else
3108 *((uint64_t *)arg1) = value_abstime;
3109 return error;
3110 }
3111
3112 SYSCTL_INT(_kern, OID_AUTO, timer_coalesce_bg_scale,
3113 CTLFLAG_KERN | CTLFLAG_RW | CTLFLAG_LOCKED,
3114 &tcoal_prio_params.timer_coalesce_bg_shift, 0, "");
3115 SYSCTL_PROC(_kern, OID_AUTO, timer_resort_threshold_ns,
3116 CTLTYPE_QUAD | CTLFLAG_KERN | CTLFLAG_RW | CTLFLAG_LOCKED,
3117 &tcoal_prio_params.timer_resort_threshold_abstime,
3118 sizeof(tcoal_prio_params.timer_resort_threshold_abstime),
3119 sysctl_timer_user_us_kernel_abstime,
3120 "Q", "");
3121 SYSCTL_PROC(_kern, OID_AUTO, timer_coalesce_bg_ns_max,
3122 CTLTYPE_QUAD | CTLFLAG_KERN | CTLFLAG_RW | CTLFLAG_LOCKED,
3123 &tcoal_prio_params.timer_coalesce_bg_abstime_max,
3124 sizeof(tcoal_prio_params.timer_coalesce_bg_abstime_max),
3125 sysctl_timer_user_us_kernel_abstime,
3126 "Q", "");
3127
3128 SYSCTL_INT(_kern, OID_AUTO, timer_coalesce_kt_scale,
3129 CTLFLAG_KERN | CTLFLAG_RW | CTLFLAG_LOCKED,
3130 &tcoal_prio_params.timer_coalesce_kt_shift, 0, "");
3131
3132 SYSCTL_PROC(_kern, OID_AUTO, timer_coalesce_kt_ns_max,
3133 CTLTYPE_QUAD | CTLFLAG_KERN | CTLFLAG_RW | CTLFLAG_LOCKED,
3134 &tcoal_prio_params.timer_coalesce_kt_abstime_max,
3135 sizeof(tcoal_prio_params.timer_coalesce_kt_abstime_max),
3136 sysctl_timer_user_us_kernel_abstime,
3137 "Q", "");
3138
3139 SYSCTL_INT(_kern, OID_AUTO, timer_coalesce_fp_scale,
3140 CTLFLAG_KERN | CTLFLAG_RW | CTLFLAG_LOCKED,
3141 &tcoal_prio_params.timer_coalesce_fp_shift, 0, "");
3142
3143 SYSCTL_PROC(_kern, OID_AUTO, timer_coalesce_fp_ns_max,
3144 CTLTYPE_QUAD | CTLFLAG_KERN | CTLFLAG_RW | CTLFLAG_LOCKED,
3145 &tcoal_prio_params.timer_coalesce_fp_abstime_max,
3146 sizeof(tcoal_prio_params.timer_coalesce_fp_abstime_max),
3147 sysctl_timer_user_us_kernel_abstime,
3148 "Q", "");
3149
3150 SYSCTL_INT(_kern, OID_AUTO, timer_coalesce_ts_scale,
3151 CTLFLAG_KERN | CTLFLAG_RW | CTLFLAG_LOCKED,
3152 &tcoal_prio_params.timer_coalesce_ts_shift, 0, "");
3153
3154 SYSCTL_PROC(_kern, OID_AUTO, timer_coalesce_ts_ns_max,
3155 CTLTYPE_QUAD | CTLFLAG_KERN | CTLFLAG_RW | CTLFLAG_LOCKED,
3156 &tcoal_prio_params.timer_coalesce_ts_abstime_max,
3157 sizeof(tcoal_prio_params.timer_coalesce_ts_abstime_max),
3158 sysctl_timer_user_us_kernel_abstime,
3159 "Q", "");
3160
3161 SYSCTL_INT(_kern, OID_AUTO, timer_coalesce_tier0_scale,
3162 CTLFLAG_KERN | CTLFLAG_RW | CTLFLAG_LOCKED,
3163 &tcoal_prio_params.latency_qos_scale[0], 0, "");
3164
3165 SYSCTL_PROC(_kern, OID_AUTO, timer_coalesce_tier0_ns_max,
3166 CTLTYPE_QUAD | CTLFLAG_KERN | CTLFLAG_RW | CTLFLAG_LOCKED,
3167 &tcoal_prio_params.latency_qos_abstime_max[0],
3168 sizeof(tcoal_prio_params.latency_qos_abstime_max[0]),
3169 sysctl_timer_user_us_kernel_abstime,
3170 "Q", "");
3171
3172 SYSCTL_INT(_kern, OID_AUTO, timer_coalesce_tier1_scale,
3173 CTLFLAG_KERN | CTLFLAG_RW | CTLFLAG_LOCKED,
3174 &tcoal_prio_params.latency_qos_scale[1], 0, "");
3175
3176 SYSCTL_PROC(_kern, OID_AUTO, timer_coalesce_tier1_ns_max,
3177 CTLTYPE_QUAD | CTLFLAG_KERN | CTLFLAG_RW | CTLFLAG_LOCKED,
3178 &tcoal_prio_params.latency_qos_abstime_max[1],
3179 sizeof(tcoal_prio_params.latency_qos_abstime_max[1]),
3180 sysctl_timer_user_us_kernel_abstime,
3181 "Q", "");
3182
3183 SYSCTL_INT(_kern, OID_AUTO, timer_coalesce_tier2_scale,
3184 CTLFLAG_KERN | CTLFLAG_RW | CTLFLAG_LOCKED,
3185 &tcoal_prio_params.latency_qos_scale[2], 0, "");
3186
3187 SYSCTL_PROC(_kern, OID_AUTO, timer_coalesce_tier2_ns_max,
3188 CTLTYPE_QUAD | CTLFLAG_KERN | CTLFLAG_RW | CTLFLAG_LOCKED,
3189 &tcoal_prio_params.latency_qos_abstime_max[2],
3190 sizeof(tcoal_prio_params.latency_qos_abstime_max[2]),
3191 sysctl_timer_user_us_kernel_abstime,
3192 "Q", "");
3193
3194 SYSCTL_INT(_kern, OID_AUTO, timer_coalesce_tier3_scale,
3195 CTLFLAG_KERN | CTLFLAG_RW | CTLFLAG_LOCKED,
3196 &tcoal_prio_params.latency_qos_scale[3], 0, "");
3197
3198 SYSCTL_PROC(_kern, OID_AUTO, timer_coalesce_tier3_ns_max,
3199 CTLTYPE_QUAD | CTLFLAG_KERN | CTLFLAG_RW | CTLFLAG_LOCKED,
3200 &tcoal_prio_params.latency_qos_abstime_max[3],
3201 sizeof(tcoal_prio_params.latency_qos_abstime_max[3]),
3202 sysctl_timer_user_us_kernel_abstime,
3203 "Q", "");
3204
3205 SYSCTL_INT(_kern, OID_AUTO, timer_coalesce_tier4_scale,
3206 CTLFLAG_KERN | CTLFLAG_RW | CTLFLAG_LOCKED,
3207 &tcoal_prio_params.latency_qos_scale[4], 0, "");
3208
3209 SYSCTL_PROC(_kern, OID_AUTO, timer_coalesce_tier4_ns_max,
3210 CTLTYPE_QUAD | CTLFLAG_KERN | CTLFLAG_RW | CTLFLAG_LOCKED,
3211 &tcoal_prio_params.latency_qos_abstime_max[4],
3212 sizeof(tcoal_prio_params.latency_qos_abstime_max[4]),
3213 sysctl_timer_user_us_kernel_abstime,
3214 "Q", "");
3215
3216 SYSCTL_INT(_kern, OID_AUTO, timer_coalesce_tier5_scale,
3217 CTLFLAG_KERN | CTLFLAG_RW | CTLFLAG_LOCKED,
3218 &tcoal_prio_params.latency_qos_scale[5], 0, "");
3219
3220 SYSCTL_PROC(_kern, OID_AUTO, timer_coalesce_tier5_ns_max,
3221 CTLTYPE_QUAD | CTLFLAG_KERN | CTLFLAG_RW | CTLFLAG_LOCKED,
3222 &tcoal_prio_params.latency_qos_abstime_max[5],
3223 sizeof(tcoal_prio_params.latency_qos_abstime_max[5]),
3224 sysctl_timer_user_us_kernel_abstime,
3225 "Q", "");
3226
3227 /* Communicate the "user idle level" heuristic to the timer layer, and
3228 * potentially other layers in the future.
3229 */
3230
3231 static int
3232 timer_user_idle_level(__unused struct sysctl_oid *oidp, __unused void *arg1, __unused int arg2, struct sysctl_req *req) {
3233 int new_value = 0, old_value = 0, changed = 0, error;
3234
3235 old_value = timer_get_user_idle_level();
3236
3237 error = sysctl_io_number(req, old_value, sizeof(int), &new_value, &changed);
3238
3239 if (error == 0 && changed) {
3240 if (timer_set_user_idle_level(new_value) != KERN_SUCCESS)
3241 error = ERANGE;
3242 }
3243
3244 return error;
3245 }
3246
3247 SYSCTL_PROC(_machdep, OID_AUTO, user_idle_level,
3248 CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_LOCKED,
3249 0, 0,
3250 timer_user_idle_level, "I", "User idle level heuristic, 0-128");
3251
3252 #if HYPERVISOR
3253 SYSCTL_INT(_kern, OID_AUTO, hv_support,
3254 CTLFLAG_KERN | CTLFLAG_RD | CTLFLAG_LOCKED,
3255 &hv_support_available, 0, "");
3256 #endif
3257
3258 #if CONFIG_EMBEDDED
3259 STATIC int
3260 sysctl_darkboot SYSCTL_HANDLER_ARGS
3261 {
3262 int err = 0, value = 0;
3263 #pragma unused(oidp, arg1, arg2, err, value, req)
3264
3265 /*
3266 * Handle the sysctl request.
3267 *
3268 * If this is a read, the function will set the value to the current darkboot value. Otherwise,
3269 * we'll get the request identifier into "value" and then we can honor it.
3270 */
3271 if ((err = sysctl_io_number(req, darkboot, sizeof(int), &value, NULL)) != 0) {
3272 goto exit;
3273 }
3274
3275 /* writing requested, let's process the request */
3276 if (req->newptr) {
3277 /* writing is protected by an entitlement */
3278 if (priv_check_cred(kauth_cred_get(), PRIV_DARKBOOT, 0) != 0) {
3279 err = EPERM;
3280 goto exit;
3281 }
3282
3283 switch (value) {
3284 case MEMORY_MAINTENANCE_DARK_BOOT_UNSET:
3285 /*
3286 * If the darkboot sysctl is unset, the NVRAM variable
3287 * must be unset too. If that's not the case, it means
3288 * someone is doing something crazy and not supported.
3289 */
3290 if (darkboot != 0) {
3291 int ret = PERemoveNVRAMProperty(MEMORY_MAINTENANCE_DARK_BOOT_NVRAM_NAME);
3292 if (ret) {
3293 darkboot = 0;
3294 } else {
3295 err = EINVAL;
3296 }
3297 }
3298 break;
3299 case MEMORY_MAINTENANCE_DARK_BOOT_SET:
3300 darkboot = 1;
3301 break;
3302 case MEMORY_MAINTENANCE_DARK_BOOT_SET_PERSISTENT: {
3303 /*
3304 * Set the NVRAM and update 'darkboot' in case
3305 * of success. Otherwise, do not update
3306 * 'darkboot' and report the failure.
3307 */
3308 if (PEWriteNVRAMBooleanProperty(MEMORY_MAINTENANCE_DARK_BOOT_NVRAM_NAME, TRUE)) {
3309 darkboot = 1;
3310 } else {
3311 err = EINVAL;
3312 }
3313
3314 break;
3315 }
3316 default:
3317 err = EINVAL;
3318 }
3319 }
3320
3321 exit:
3322 return err;
3323 }
3324
3325 SYSCTL_PROC(_kern, OID_AUTO, darkboot,
3326 CTLFLAG_KERN | CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_LOCKED | CTLFLAG_ANYBODY,
3327 0, 0, sysctl_darkboot, "I", "");
3328 #endif
3329
3330 /*
3331 * This is set by core audio to tell tailspin (ie background tracing) how long
3332 * its smallest buffer is. Background tracing can then try to make a reasonable
3333 * decisions to try to avoid introducing so much latency that the buffers will
3334 * underflow.
3335 */
3336
3337 int min_audio_buffer_usec;
3338
3339 STATIC int
3340 sysctl_audio_buffer SYSCTL_HANDLER_ARGS
3341 {
3342 #pragma unused(oidp, arg1, arg2)
3343 int err = 0, value = 0, changed = 0;
3344 err = sysctl_io_number(req, min_audio_buffer_usec, sizeof(int), &value, &changed);
3345 if (err) goto exit;
3346
3347 if (changed) {
3348 /* writing is protected by an entitlement */
3349 if (priv_check_cred(kauth_cred_get(), PRIV_AUDIO_LATENCY, 0) != 0) {
3350 err = EPERM;
3351 goto exit;
3352 }
3353 min_audio_buffer_usec = value;
3354 }
3355 exit:
3356 return err;
3357 }
3358
3359 SYSCTL_PROC(_kern, OID_AUTO, min_audio_buffer_usec, CTLFLAG_RW | CTLFLAG_ANYBODY, 0, 0, sysctl_audio_buffer, "I", "Minimum audio buffer size, in microseconds");
3360
3361 #if DEVELOPMENT || DEBUG
3362 #include <sys/sysent.h>
3363 /* This should result in a fatal exception, verifying that "sysent" is
3364 * write-protected.
3365 */
3366 static int
3367 kern_sysent_write(__unused struct sysctl_oid *oidp, __unused void *arg1, __unused int arg2, struct sysctl_req *req) {
3368 uint64_t new_value = 0, old_value = 0;
3369 int changed = 0, error;
3370
3371 error = sysctl_io_number(req, old_value, sizeof(uint64_t), &new_value, &changed);
3372 if ((error == 0) && changed) {
3373 volatile uint32_t *wraddr = (uint32_t *) &sysent[0];
3374 *wraddr = 0;
3375 printf("sysent[0] write succeeded\n");
3376 }
3377 return error;
3378 }
3379
3380 SYSCTL_PROC(_kern, OID_AUTO, sysent_const_check,
3381 CTLTYPE_QUAD | CTLFLAG_RW | CTLFLAG_LOCKED,
3382 0, 0,
3383 kern_sysent_write, "I", "Attempt sysent[0] write");
3384
3385 #endif
3386
3387 #if DEVELOPMENT || DEBUG
3388 SYSCTL_COMPAT_INT(_kern, OID_AUTO, development, CTLFLAG_RD | CTLFLAG_MASKED, NULL, 1, "");
3389 #else
3390 SYSCTL_COMPAT_INT(_kern, OID_AUTO, development, CTLFLAG_RD | CTLFLAG_MASKED, NULL, 0, "");
3391 #endif
3392
3393
3394 #if DEVELOPMENT || DEBUG
3395
3396 static int
3397 sysctl_panic_test SYSCTL_HANDLER_ARGS
3398 {
3399 #pragma unused(arg1, arg2)
3400 int rval = 0;
3401 char str[32] = "entry prelog postlog postcore";
3402
3403 rval = sysctl_handle_string(oidp, str, sizeof(str), req);
3404
3405 if (rval == 0 && req->newptr) {
3406 if (strncmp("entry", str, strlen("entry")) == 0) {
3407 panic_with_options(0, NULL, DEBUGGER_OPTION_RECURPANIC_ENTRY, "test recursive panic at entry");
3408 } else if (strncmp("prelog", str, strlen("prelog")) == 0) {
3409 panic_with_options(0, NULL, DEBUGGER_OPTION_RECURPANIC_PRELOG, "test recursive panic prior to writing a paniclog");
3410 } else if (strncmp("postlog", str, strlen("postlog")) == 0) {
3411 panic_with_options(0, NULL, DEBUGGER_OPTION_RECURPANIC_POSTLOG, "test recursive panic subsequent to paniclog");
3412 } else if (strncmp("postcore", str, strlen("postcore")) == 0) {
3413 panic_with_options(0, NULL, DEBUGGER_OPTION_RECURPANIC_POSTCORE, "test recursive panic subsequent to on-device core");
3414 }
3415 }
3416
3417 return rval;
3418 }
3419
3420 static int
3421 sysctl_debugger_test SYSCTL_HANDLER_ARGS
3422 {
3423 #pragma unused(arg1, arg2)
3424 int rval = 0;
3425 char str[32] = "entry prelog postlog postcore";
3426
3427 rval = sysctl_handle_string(oidp, str, sizeof(str), req);
3428
3429 if (rval == 0 && req->newptr) {
3430 if (strncmp("entry", str, strlen("entry")) == 0) {
3431 DebuggerWithContext(0, NULL, "test recursive panic via debugger at entry", DEBUGGER_OPTION_RECURPANIC_ENTRY);
3432 } else if (strncmp("prelog", str, strlen("prelog")) == 0) {
3433 DebuggerWithContext(0, NULL, "test recursive panic via debugger prior to writing a paniclog", DEBUGGER_OPTION_RECURPANIC_PRELOG);
3434 } else if (strncmp("postlog", str, strlen("postlog")) == 0) {
3435 DebuggerWithContext(0, NULL, "test recursive panic via debugger subsequent to paniclog", DEBUGGER_OPTION_RECURPANIC_POSTLOG);
3436 } else if (strncmp("postcore", str, strlen("postcore")) == 0) {
3437 DebuggerWithContext(0, NULL, "test recursive panic via debugger subsequent to on-device core", DEBUGGER_OPTION_RECURPANIC_POSTCORE);
3438 }
3439 }
3440
3441 return rval;
3442 }
3443
3444 decl_lck_spin_data(, spinlock_panic_test_lock)
3445
3446 __attribute__((noreturn))
3447 static void
3448 spinlock_panic_test_acquire_spinlock(void * arg __unused, wait_result_t wres __unused)
3449 {
3450 lck_spin_lock(&spinlock_panic_test_lock);
3451 while (1) { ; }
3452 }
3453
3454 static int
3455 sysctl_spinlock_panic_test SYSCTL_HANDLER_ARGS
3456 {
3457 #pragma unused(oidp, arg1, arg2)
3458 if (req->newlen == 0)
3459 return EINVAL;
3460
3461 thread_t panic_spinlock_thread;
3462 /* Initialize panic spinlock */
3463 lck_grp_t * panic_spinlock_grp;
3464 lck_grp_attr_t * panic_spinlock_grp_attr;
3465 lck_attr_t * panic_spinlock_attr;
3466
3467 panic_spinlock_grp_attr = lck_grp_attr_alloc_init();
3468 panic_spinlock_grp = lck_grp_alloc_init("panic_spinlock", panic_spinlock_grp_attr);
3469 panic_spinlock_attr = lck_attr_alloc_init();
3470
3471 lck_spin_init(&spinlock_panic_test_lock, panic_spinlock_grp, panic_spinlock_attr);
3472
3473
3474 /* Create thread to acquire spinlock */
3475 if (kernel_thread_start(spinlock_panic_test_acquire_spinlock, NULL, &panic_spinlock_thread) != KERN_SUCCESS) {
3476 return EBUSY;
3477 }
3478
3479 /* Try to acquire spinlock -- should panic eventually */
3480 lck_spin_lock(&spinlock_panic_test_lock);
3481 while(1) { ; }
3482 }
3483
3484 __attribute__((noreturn))
3485 static void
3486 simultaneous_panic_worker
3487 (void * arg, wait_result_t wres __unused)
3488 {
3489 atomic_int *start_panic = (atomic_int *)arg;
3490
3491 while (!atomic_load(start_panic)) { ; }
3492 panic("SIMULTANEOUS PANIC TEST: INITIATING PANIC FROM CPU %d", cpu_number());
3493 __builtin_unreachable();
3494 }
3495
3496 static int
3497 sysctl_simultaneous_panic_test SYSCTL_HANDLER_ARGS
3498 {
3499 #pragma unused(oidp, arg1, arg2)
3500 if (req->newlen == 0)
3501 return EINVAL;
3502
3503 int i = 0, threads_to_create = 2 * processor_count;
3504 atomic_int start_panic = 0;
3505 unsigned int threads_created = 0;
3506 thread_t new_panic_thread;
3507
3508 for (i = threads_to_create; i > 0; i--) {
3509 if (kernel_thread_start(simultaneous_panic_worker, (void *) &start_panic, &new_panic_thread) == KERN_SUCCESS) {
3510 threads_created++;
3511 }
3512 }
3513
3514 /* FAIL if we couldn't create at least processor_count threads */
3515 if (threads_created < processor_count) {
3516 panic("SIMULTANEOUS PANIC TEST: FAILED TO CREATE ENOUGH THREADS, ONLY CREATED %d (of %d)",
3517 threads_created, threads_to_create);
3518 }
3519
3520 atomic_exchange(&start_panic, 1);
3521 while (1) { ; }
3522 }
3523
3524 SYSCTL_PROC(_debug, OID_AUTO, panic_test, CTLTYPE_STRING | CTLFLAG_RW | CTLFLAG_KERN | CTLFLAG_MASKED, 0, 0, sysctl_panic_test, "A", "panic test");
3525 SYSCTL_PROC(_debug, OID_AUTO, debugger_test, CTLTYPE_STRING | CTLFLAG_RW | CTLFLAG_KERN | CTLFLAG_MASKED, 0, 0, sysctl_debugger_test, "A", "debugger test");
3526 SYSCTL_PROC(_debug, OID_AUTO, spinlock_panic_test, CTLTYPE_STRING | CTLFLAG_RW | CTLFLAG_KERN | CTLFLAG_MASKED, 0, 0, sysctl_spinlock_panic_test, "A", "spinlock panic test");
3527 SYSCTL_PROC(_debug, OID_AUTO, simultaneous_panic_test, CTLTYPE_STRING | CTLFLAG_RW | CTLFLAG_KERN | CTLFLAG_MASKED, 0, 0, sysctl_simultaneous_panic_test, "A", "simultaneous panic test");
3528
3529
3530 #endif /* DEVELOPMENT || DEBUG */
3531
3532 const uint32_t thread_groups_supported = 0;
3533
3534 STATIC int
3535 sysctl_thread_groups_supported (__unused struct sysctl_oid *oidp, __unused void *arg1, __unused int arg2, struct sysctl_req *req)
3536 {
3537 int value = thread_groups_supported;
3538 return sysctl_io_number(req, value, sizeof(value), NULL, NULL);
3539 }
3540
3541 SYSCTL_PROC(_kern, OID_AUTO, thread_groups_supported, CTLFLAG_RD | CTLFLAG_LOCKED | CTLFLAG_KERN,
3542 0, 0, &sysctl_thread_groups_supported, "I", "thread groups supported");
3543
3544 static int
3545 sysctl_grade_cputype SYSCTL_HANDLER_ARGS
3546 {
3547 #pragma unused(arg1, arg2, oidp)
3548 int error = 0;
3549 int type_tuple[2] = {};
3550 int return_value = 0;
3551
3552 error = SYSCTL_IN(req, &type_tuple, sizeof(type_tuple));
3553
3554 if (error) {
3555 return error;
3556 }
3557
3558 return_value = grade_binary(type_tuple[0], type_tuple[1]);
3559
3560 error = SYSCTL_OUT(req, &return_value, sizeof(return_value));
3561
3562 if (error) {
3563 return error;
3564 }
3565
3566 return error;
3567 }
3568
3569 SYSCTL_PROC(_kern, OID_AUTO, grade_cputype,
3570 CTLFLAG_RW|CTLFLAG_ANYBODY|CTLFLAG_MASKED|CTLFLAG_LOCKED|CTLTYPE_OPAQUE,
3571 0, 0, &sysctl_grade_cputype, "S",
3572 "grade value of cpu_type_t+cpu_sub_type_t");
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