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1c79356b 1/*
316670eb 2 * Copyright (c) 2000-2011 Apple Inc. All rights reserved.
5d5c5d0d 3 *
2d21ac55 4 * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
1c79356b 5 *
2d21ac55
A		 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.
8f6c56a5 14 *
2d21ac55
A		 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
8f6c56a5
A		 20 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
21 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
2d21ac55
A		 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.
8f6c56a5 25 *
2d21ac55 26 * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
1c79356b
A		 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 */
2d21ac55
A		 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 */
1c79356b
A		 72
73/*
2d21ac55
A		 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.
1c79356b
A		 84 */
85
86#include <sys/param.h>
87#include <sys/systm.h>
88#include <sys/kernel.h>
89#include <sys/malloc.h>
91447636
A		 90#include <sys/proc_internal.h>
91#include <sys/kauth.h>
92#include <sys/file_internal.h>
93#include <sys/vnode_internal.h>
1c79356b
A		 94#include <sys/unistd.h>
95#include <sys/buf.h>
96#include <sys/ioctl.h>
55e303ae 97#include <sys/namei.h>
1c79356b
A		 98#include <sys/tty.h>
99#include <sys/disklabel.h>
100#include <sys/vm.h>
101#include <sys/sysctl.h>
9bccf70c 102#include <sys/user.h>
55e303ae 103#include <sys/aio_kern.h>
2d21ac55 104#include <sys/reboot.h>
3e170ce0
A		 105#include <sys/memory_maintenance.h>
106#include <sys/priv.h>
5ba3f43e 107#include <stdatomic.h>
e5568f75 108
b0d623f7
A		 109#include <security/audit/audit.h>
110#include <kern/kalloc.h>
e5568f75 111
5ba3f43e 112#include <machine/smp.h>
1c79356b 113#include <mach/machine.h>
6d2010ae 114#include <mach/mach_host.h>
1c79356b 115#include <mach/mach_types.h>
5ba3f43e 116#include <mach/processor_info.h>
1c79356b 117#include <mach/vm_param.h>
5ba3f43e 118#include <kern/debug.h>
b0d623f7 119#include <kern/mach_param.h>
1c79356b 120#include <kern/task.h>
316670eb 121#include <kern/thread.h>
5ba3f43e 122#include <kern/thread_group.h>
6d2010ae 123#include <kern/processor.h>
5ba3f43e 124#include <kern/cpu_number.h>
b0d623f7 125#include <kern/debug.h>
3e170ce0 126#include <kern/sched_prim.h>
1c79356b 127#include <vm/vm_kern.h>
91447636 128#include <vm/vm_map.h>
1c79356b
A		 129#include <mach/host_info.h>
130
91447636 131#include <sys/mount_internal.h>
1c79356b
A		 132#include <sys/kdebug.h>
133
134#include <IOKit/IOPlatformExpert.h>
135#include <pexpert/pexpert.h>
136
55e303ae 137#include <machine/machine_routines.h>
0c530ab8 138#include <machine/exec.h>
1c79356b 139
91447636 140#include <vm/vm_protos.h>
39236c6e 141#include <vm/vm_pageout.h>
39037602 142#include <vm/vm_compressor_algorithms.h>
6d2010ae 143#include <sys/imgsrc.h>
fe8ab488 144#include <kern/timer_call.h>
91447636 145
b0d623f7 146#if defined(__i386__) || defined(__x86_64__)
0c530ab8
A		 147#include <i386/cpuid.h>
148#endif
149
316670eb
A		 150#if CONFIG_FREEZE
151#include <sys/kern_memorystatus.h>
152#endif
153
39236c6e
A		 154#if KPERF
155#include <kperf/kperf.h>
156#endif
157
fe8ab488
A		 158#if HYPERVISOR
159#include <kern/hv_support.h>
160#endif
161
316670eb
A		 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
55e303ae
A		 168extern int aio_max_requests;
169extern int aio_max_requests_per_process;
170extern int aio_worker_threads;
91447636
A		 171extern int lowpri_IO_window_msecs;
172extern int lowpri_IO_delay_msecs;
0c530ab8 173extern int nx_enabled;
2d21ac55 174extern int speculative_reads_disabled;
6d2010ae 175extern unsigned int speculative_prefetch_max;
316670eb 176extern unsigned int speculative_prefetch_max_iosize;
fe8ab488
A		 177extern unsigned int preheat_max_bytes;
178extern unsigned int preheat_min_bytes;
b0d623f7 179extern long numvnodes;
1c79356b 180
39236c6e
A		 181extern uuid_string_t bootsessionuuid_string;
182
6d2010ae
A		 183extern unsigned int vm_max_delayed_work_limit;
184extern unsigned int vm_max_batch;
185
186extern unsigned int vm_page_free_min;
187extern unsigned int vm_page_free_target;
188extern unsigned int vm_page_free_reserved;
189extern unsigned int vm_page_speculative_percentage;
190extern unsigned int vm_page_speculative_q_age_ms;
191
04b8595b
A		 192#if (DEVELOPMENT || DEBUG)
193extern uint32_t vm_page_creation_throttled_hard;
194extern uint32_t vm_page_creation_throttled_soft;
195#endif /* DEVELOPMENT || DEBUG */
196
6d2010ae
A		 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
209extern boolean_t mach_timer_coalescing_enabled;
210
39236c6e
A		 211extern uint64_t timer_deadline_tracking_bin_1, timer_deadline_tracking_bin_2;
212
6d2010ae 213STATIC void
316670eb
A		 214fill_user32_eproc(proc_t, struct user32_eproc *__restrict);
215STATIC void
216fill_user32_externproc(proc_t, struct user32_extern_proc *__restrict);
6d2010ae 217STATIC void
316670eb 218fill_user64_eproc(proc_t, struct user64_eproc *__restrict);
6d2010ae 219STATIC void
316670eb 220fill_user64_proc(proc_t, struct user64_kinfo_proc *__restrict);
6d2010ae 221STATIC void
316670eb 222fill_user64_externproc(proc_t, struct user64_extern_proc *__restrict);
6d2010ae 223STATIC void
316670eb
A		 224fill_user32_proc(proc_t, struct user32_kinfo_proc *__restrict);
225
91447636
A		 226extern int
227kdbg_control(int *name, u_int namelen, user_addr_t where, size_t * sizep);
91447636
A		 228#if NFSCLIENT
229extern int
230netboot_root(void);
231#endif
232int
233pcsamples_ops(int *name, u_int namelen, user_addr_t where, size_t *sizep,
2d21ac55 234 proc_t p);
91447636
A		 235int
236sysctl_procargs(int *name, u_int namelen, user_addr_t where,
2d21ac55 237 size_t *sizep, proc_t cur_proc);
6d2010ae 238STATIC int
91447636 239sysctl_procargsx(int *name, u_int namelen, user_addr_t where, size_t *sizep,
2d21ac55 240 proc_t cur_proc, int argc_yes);
91447636
A		 241int
242sysctl_struct(user_addr_t oldp, size_t *oldlenp, user_addr_t newp,
243 size_t newlen, void *sp, int len);
1c79356b 244
6d2010ae
A		 245STATIC int sysdoproc_filt_KERN_PROC_PID(proc_t p, void * arg);
246STATIC int sysdoproc_filt_KERN_PROC_PGRP(proc_t p, void * arg);
247STATIC int sysdoproc_filt_KERN_PROC_TTY(proc_t p, void * arg);
248STATIC int sysdoproc_filt_KERN_PROC_UID(proc_t p, void * arg);
249STATIC int sysdoproc_filt_KERN_PROC_RUID(proc_t p, void * arg);
2d21ac55 250int sysdoproc_callback(proc_t p, void *arg);
1c79356b 251
6d2010ae
A		 252
253/* forward declarations for non-static STATIC */
254STATIC void fill_loadavg64(struct loadavg *la, struct user64_loadavg *la64);
255STATIC void fill_loadavg32(struct loadavg *la, struct user32_loadavg *la32);
6d2010ae
A		 256STATIC int sysctl_handle_kern_threadname(struct sysctl_oid *oidp, void *arg1, int arg2, struct sysctl_req *req);
257STATIC int sysctl_sched_stats(struct sysctl_oid *oidp, void *arg1, int arg2, struct sysctl_req *req);
258STATIC int sysctl_sched_stats_enable(struct sysctl_oid *oidp, void *arg1, int arg2, struct sysctl_req *req);
6d2010ae 259STATIC int sysctl_kdebug_ops SYSCTL_HANDLER_ARGS;
6d2010ae
A		 260#if COUNT_SYSCALLS
261STATIC int sysctl_docountsyscalls SYSCTL_HANDLER_ARGS;
262#endif /* COUNT_SYSCALLS */
5ba3f43e 263#if !CONFIG_EMBEDDED
6d2010ae 264STATIC int sysctl_doprocargs SYSCTL_HANDLER_ARGS;
5ba3f43e 265#endif /* !CONFIG_EMBEDDED */
6d2010ae
A		 266STATIC int sysctl_doprocargs2 SYSCTL_HANDLER_ARGS;
267STATIC int sysctl_prochandle SYSCTL_HANDLER_ARGS;
6d2010ae
A		 268STATIC int sysctl_aiomax(struct sysctl_oid *oidp, void *arg1, int arg2, struct sysctl_req *req);
269STATIC int sysctl_aioprocmax(struct sysctl_oid *oidp, void *arg1, int arg2, struct sysctl_req *req);
270STATIC int sysctl_aiothreads(struct sysctl_oid *oidp, void *arg1, int arg2, struct sysctl_req *req);
271STATIC int sysctl_maxproc(struct sysctl_oid *oidp, void *arg1, int arg2, struct sysctl_req *req);
272STATIC int sysctl_osversion(struct sysctl_oid *oidp, void *arg1, int arg2, struct sysctl_req *req);
273STATIC int sysctl_sysctl_bootargs(struct sysctl_oid *oidp, void *arg1, int arg2, struct sysctl_req *req);
274STATIC int sysctl_maxvnodes(struct sysctl_oid *oidp, void *arg1, int arg2, struct sysctl_req *req);
275STATIC int sysctl_securelvl(struct sysctl_oid *oidp, void *arg1, int arg2, struct sysctl_req *req);
276STATIC int sysctl_domainname(struct sysctl_oid *oidp, void *arg1, int arg2, struct sysctl_req *req);
277STATIC int sysctl_hostname(struct sysctl_oid *oidp, void *arg1, int arg2, struct sysctl_req *req);
278STATIC int sysctl_procname(struct sysctl_oid *oidp, void *arg1, int arg2, struct sysctl_req *req);
279STATIC int sysctl_boottime(struct sysctl_oid *oidp, void *arg1, int arg2, struct sysctl_req *req);
280STATIC int sysctl_symfile(struct sysctl_oid *oidp, void *arg1, int arg2, struct sysctl_req *req);
281#if NFSCLIENT
282STATIC int sysctl_netboot(struct sysctl_oid *oidp, void *arg1, int arg2, struct sysctl_req *req);
283#endif
284#ifdef CONFIG_IMGSRC_ACCESS
285STATIC int sysctl_imgsrcdev(struct sysctl_oid *oidp, void *arg1, int arg2, struct sysctl_req *req);
286#endif
287STATIC int sysctl_usrstack(struct sysctl_oid *oidp, void *arg1, int arg2, struct sysctl_req *req);
288STATIC int sysctl_usrstack64(struct sysctl_oid *oidp, void *arg1, int arg2, struct sysctl_req *req);
39037602 289#if CONFIG_COREDUMP
6d2010ae
A		 290STATIC int sysctl_coredump(struct sysctl_oid *oidp, void *arg1, int arg2, struct sysctl_req *req);
291STATIC int sysctl_suid_coredump(struct sysctl_oid *oidp, void *arg1, int arg2, struct sysctl_req *req);
39037602 292#endif
6d2010ae
A		 293STATIC int sysctl_delayterm(struct sysctl_oid *oidp, void *arg1, int arg2, struct sysctl_req *req);
294STATIC int sysctl_rage_vnode(struct sysctl_oid *oidp, void *arg1, int arg2, struct sysctl_req *req);
295STATIC int sysctl_kern_check_openevt(struct sysctl_oid *oidp, void *arg1, int arg2, struct sysctl_req *req);
296STATIC int sysctl_nx(struct sysctl_oid *oidp, void *arg1, int arg2, struct sysctl_req *req);
297STATIC int sysctl_loadavg(struct sysctl_oid *oidp, void *arg1, int arg2, struct sysctl_req *req);
298STATIC int sysctl_vm_toggle_address_reuse(struct sysctl_oid *oidp, void *arg1, int arg2, struct sysctl_req *req);
299STATIC int sysctl_swapusage(struct sysctl_oid *oidp, void *arg1, int arg2, struct sysctl_req *req);
6d2010ae
A		 300STATIC int fetch_process_cputype( proc_t cur_proc, int *name, u_int namelen, cpu_type_t *cputype);
301STATIC int sysctl_sysctl_native(struct sysctl_oid *oidp, void *arg1, int arg2, struct sysctl_req *req);
302STATIC int sysctl_sysctl_cputype(struct sysctl_oid *oidp, void *arg1, int arg2, struct sysctl_req *req);
303STATIC int sysctl_safeboot(struct sysctl_oid *oidp, void *arg1, int arg2, struct sysctl_req *req);
304STATIC int sysctl_singleuser(struct sysctl_oid *oidp, void *arg1, int arg2, struct sysctl_req *req);
3e170ce0 305STATIC int sysctl_minimalboot(struct sysctl_oid *oidp, void *arg1, int arg2, struct sysctl_req *req);
316670eb 306STATIC int sysctl_slide(struct sysctl_oid *oidp, void *arg1, int arg2, struct sysctl_req *req);
6d2010ae 307
2d21ac55
A		 308
309extern void IORegistrySetOSBuildVersion(char * build_version);
91447636 310
6d2010ae 311STATIC void
b0d623f7 312fill_loadavg64(struct loadavg *la, struct user64_loadavg *la64)
91447636 313{
b0d623f7
A		 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
6d2010ae 320STATIC void
b0d623f7
A		 321fill_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;
91447636
A		 327}
328
39037602 329#if CONFIG_COREDUMP
1c79356b
A		 330/*
331 * Attributes stored in the kernel.
332 */
39236c6e
A		 333extern char corefilename[MAXPATHLEN+1];
334extern int do_coredump;
335extern int sugid_coredump;
39037602 336#endif
e5568f75 337
2d21ac55 338#if COUNT_SYSCALLS
39236c6e 339extern int do_count_syscalls;
2d21ac55 340#endif
55e303ae 341
1c79356b
A		 342#ifdef INSECURE
343int securelevel = -1;
344#else
345int securelevel;
346#endif
347
6d2010ae 348STATIC int
b0d623f7
A		 349sysctl_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;
39037602
A		 395 } else {
396 kernel_debug_string_simple(TRACE_STRING_THREADNAME_PREV, ut->pth_name);
b0d623f7
A		 397 }
398 bzero(ut->pth_name, MAXTHREADNAMESIZE);
399 error = copyin(newp, ut->pth_name, newlen);
39037602 400 if (error) {
b0d623f7 401 return error;
39037602
A		 402 }
403
404 kernel_debug_string_simple(TRACE_STRING_THREADNAME, ut->pth_name);
b0d623f7
A		 405 }
406
407 return 0;
408}
409
6d2010ae 410SYSCTL_PROC(_kern, KERN_THREADNAME, threadname, CTLFLAG_ANYBODY | CTLTYPE_STRING | CTLFLAG_RW | CTLFLAG_LOCKED, 0, 0, sysctl_handle_kern_threadname,"A","");
b0d623f7 411
6d2010ae
A		 412#define BSD_HOST 1
413STATIC int
414sysctl_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;
55e303ae 423
6d2010ae
A		 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 }
1c79356b 428
6d2010ae
A		 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 }
451out:
452 FREE(buf, M_TEMP);
453 return error;
454}
455
456SYSCTL_PROC(_kern, OID_AUTO, sched_stats, CTLFLAG_LOCKED, 0, 0, sysctl_sched_stats, "-", "");
457
458STATIC int
459sysctl_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
476SYSCTL_PROC(_kern, OID_AUTO, sched_stats_enable, CTLFLAG_LOCKED | CTLFLAG_WR, 0, 0, sysctl_sched_stats_enable, "-", "");
477
3e170ce0
A		 478extern uint32_t sched_debug_flags;
479SYSCTL_INT(_debug, OID_AUTO, sched, CTLFLAG_RW | CTLFLAG_LOCKED, &sched_debug_flags, 0, "scheduler debug");
480
481#if (DEBUG || DEVELOPMENT)
482extern boolean_t doprnt_hide_pointers;
483SYSCTL_INT(_debug, OID_AUTO, hide_kernel_pointers, CTLFLAG_RW | CTLFLAG_LOCKED, &doprnt_hide_pointers, 0, "hide kernel pointers from log");
484#endif
485
6d2010ae 486extern int get_kernel_symfile(proc_t, char **);
1c79356b 487
2d21ac55 488#if COUNT_SYSCALLS
6d2010ae
A		 489#define KERN_COUNT_SYSCALLS (KERN_OSTYPE + 1000)
490
39037602 491extern unsigned int nsysent;
6d2010ae
A		 492extern int syscalls_log[];
493extern const char *syscallnames[];
494
495STATIC int
496sysctl_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;
2d21ac55 534 }
2d21ac55
A		 535 }
536 }
6d2010ae
A		 537 if ( tmp != 0 ) {
538 do_count_syscalls = 1;
539 }
1c79356b 540 }
6d2010ae
A		 541
542 /* adjust index so we return the right required/consumed amount */
543 if (!error)
544 req->oldidx += req->oldlen;
545
546 return (error);
1c79356b 547}
6d2010ae
A		 548SYSCTL_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 */
1c79356b 555
2d21ac55
A		 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
1c79356b
A		 566/*
567 * Validate parameters and get old / set new parameters
568 * for an integer-valued sysctl function.
569 */
9bccf70c 570int
91447636
A		 571sysctl_int(user_addr_t oldp, size_t *oldlenp,
572 user_addr_t newp, size_t newlen, int *valp)
1c79356b
A		 573{
574 int error = 0;
575
91447636
A		 576 if (oldp != USER_ADDR_NULL && oldlenp == NULL)
577 return (EFAULT);
1c79356b
A		 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));
e5568f75 585 if (error == 0 && newp) {
1c79356b 586 error = copyin(newp, valp, sizeof(int));
b0d623f7 587 AUDIT_ARG(value32, *valp);
e5568f75 588 }
1c79356b
A		 589 return (error);
590}
591
9bccf70c
A		 592/*
593 * Validate parameters and get old / set new parameters
594 * for an quad(64bit)-valued sysctl function.
595 */
596int
91447636
A		 597sysctl_quad(user_addr_t oldp, size_t *oldlenp,
598 user_addr_t newp, size_t newlen, quad_t *valp)
9bccf70c
A		 599{
600 int error = 0;
601
91447636
A		 602 if (oldp != USER_ADDR_NULL && oldlenp == NULL)
603 return (EFAULT);
9bccf70c
A		 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
6d2010ae 616STATIC int
2d21ac55
A		 617sysdoproc_filt_KERN_PROC_PID(proc_t p, void * arg)
618{
b0d623f7 619 if (p->p_pid != (pid_t)*(int*)arg)
2d21ac55
A		 620 return(0);
621 else
622 return(1);
623}
624
6d2010ae 625STATIC int
2d21ac55
A		 626sysdoproc_filt_KERN_PROC_PGRP(proc_t p, void * arg)
627{
b0d623f7 628 if (p->p_pgrpid != (pid_t)*(int*)arg)
2d21ac55
A		 629 return(0);
630 else
631 return(1);
632}
633
6d2010ae 634STATIC int
2d21ac55
A		 635sysdoproc_filt_KERN_PROC_TTY(proc_t p, void * arg)
636{
2d21ac55 637 int retval;
b0d623f7 638 struct tty *tp;
2d21ac55 639
2d21ac55
A		 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) ||
b0d623f7
A		 643 (tp = SESSION_TP(p->p_pgrp->pg_session)) == TTY_NULL ||
644 tp->t_dev != (dev_t)*(int*)arg)
2d21ac55
A		 645 retval = 0;
646 else
647 retval = 1;
648
2d21ac55
A		 649 return(retval);
650}
651
6d2010ae 652STATIC int
2d21ac55
A		 653sysdoproc_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
b0d623f7 664 if (uid != (uid_t)*(int*)arg)
2d21ac55
A		 665 return(0);
666 else
667 return(1);
668}
669
670
6d2010ae 671STATIC int
2d21ac55
A		 672sysdoproc_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);
6d2010ae 680 ruid = kauth_cred_getruid(my_cred);
2d21ac55
A		 681 kauth_cred_unref(&my_cred);
682
b0d623f7 683 if (ruid != (uid_t)*(int*)arg)
2d21ac55
A		 684 return(0);
685 else
686 return(1);
687}
688
1c79356b
A		 689/*
690 * try over estimating by 5 procs
691 */
692#define KERN_PROCSLOP (5 * sizeof (struct kinfo_proc))
2d21ac55
A		 693struct sysdoproc_args {
694 int buflen;
316670eb 695 void *kprocp;
2d21ac55
A		 696 boolean_t is_64_bit;
697 user_addr_t dp;
698 size_t needed;
699 int sizeof_kproc;
316670eb 700 int *errorp;
2d21ac55
A		 701 int uidcheck;
702 int ruidcheck;
703 int ttycheck;
704 int uidval;
705};
706
707int
316670eb 708sysdoproc_callback(proc_t p, void *arg)
2d21ac55 709{
316670eb 710 struct sysdoproc_args *args = arg;
2d21ac55
A		 711
712 if (args->buflen >= args->sizeof_kproc) {
316670eb
A		 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);
2d21ac55
A		 719
720 bzero(args->kprocp, args->sizeof_kproc);
316670eb
A		 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);
2d21ac55
A		 726 if (error) {
727 *args->errorp = error;
316670eb 728 return (PROC_RETURNED_DONE);
2d21ac55
A		 729 }
730 args->dp += args->sizeof_kproc;
731 args->buflen -= args->sizeof_kproc;
732 }
733 args->needed += args->sizeof_kproc;
316670eb 734 return (PROC_RETURNED);
2d21ac55 735}
1c79356b 736
6d2010ae
A		 737SYSCTL_NODE(_kern, KERN_PROC, proc, CTLFLAG_RD | CTLFLAG_LOCKED, 0, "");
738STATIC int
739sysctl_prochandle SYSCTL_HANDLER_ARGS
1c79356b 740{
6d2010ae
A		 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
91447636
A		 746 user_addr_t dp = where;
747 size_t needed = 0;
6d2010ae 748 int buflen = where != USER_ADDR_NULL ? req->oldlen : 0;
1c79356b 749 int error = 0;
316670eb 750 boolean_t is_64_bit = proc_is64bit(current_proc());
b0d623f7
A		 751 struct user32_kinfo_proc user32_kproc;
752 struct user64_kinfo_proc user_kproc;
91447636 753 int sizeof_kproc;
316670eb 754 void *kprocp;
2d21ac55
A		 755 int (*filterfn)(proc_t, void *) = 0;
756 struct sysdoproc_args args;
757 int uidcheck = 0;
758 int ruidcheck = 0;
759 int ttycheck = 0;
5ba3f43e 760 int success = 0;
1c79356b 761
6d2010ae 762 if (namelen != 1 && !(namelen == 0 && cmd == KERN_PROC_ALL))
1c79356b 763 return (EINVAL);
6d2010ae 764
91447636
A		 765 if (is_64_bit) {
766 sizeof_kproc = sizeof(user_kproc);
316670eb
A		 767 kprocp = &user_kproc;
768 } else {
b0d623f7 769 sizeof_kproc = sizeof(user32_kproc);
316670eb 770 kprocp = &user32_kproc;
91447636 771 }
2d21ac55 772
6d2010ae 773 switch (cmd) {
1c79356b
A		 774
775 case KERN_PROC_PID:
2d21ac55 776 filterfn = sysdoproc_filt_KERN_PROC_PID;
1c79356b
A		 777 break;
778
779 case KERN_PROC_PGRP:
2d21ac55 780 filterfn = sysdoproc_filt_KERN_PROC_PGRP;
1c79356b 781 break;
2d21ac55 782
1c79356b 783 case KERN_PROC_TTY:
2d21ac55 784 ttycheck = 1;
1c79356b
A		 785 break;
786
787 case KERN_PROC_UID:
2d21ac55 788 uidcheck = 1;
1c79356b
A		 789 break;
790
791 case KERN_PROC_RUID:
2d21ac55 792 ruidcheck = 1;
1c79356b 793 break;
2d21ac55 794
6d2010ae
A		 795 case KERN_PROC_ALL:
796 break;
797
798 default:
799 /* must be kern.proc.<unknown> */
800 return (ENOTSUP);
1c79356b 801 }
2d21ac55
A		 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;
6d2010ae 814 if (namelen)
316670eb 815 args.uidval = name[0];
2d21ac55 816
5ba3f43e
A		 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);
2d21ac55
A		 827
828 if (error)
316670eb 829 return (error);
2d21ac55
A		 830
831 dp = args.dp;
832 needed = args.needed;
833
91447636 834 if (where != USER_ADDR_NULL) {
6d2010ae
A		 835 req->oldlen = dp - where;
836 if (needed > req->oldlen)
1c79356b
A		 837 return (ENOMEM);
838 } else {
839 needed += KERN_PROCSLOP;
6d2010ae 840 req->oldlen = needed;
1c79356b 841 }
6d2010ae
A		 842 /* adjust index so we return the right required/consumed amount */
843 req->oldidx += req->oldlen;
1c79356b
A		 844 return (0);
845}
316670eb 846
6d2010ae
A		 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 */
869SYSCTL_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 "");
875SYSCTL_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 "");
881SYSCTL_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 "");
887SYSCTL_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 "");
893SYSCTL_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 "");
899SYSCTL_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 "");
905SYSCTL_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
1c79356b 912
1c79356b 913/*
316670eb 914 * Fill in non-zero fields of an eproc structure for the specified process.
1c79356b 915 */
6d2010ae 916STATIC void
316670eb 917fill_user32_eproc(proc_t p, struct user32_eproc *__restrict ep)
1c79356b 918{
2d21ac55 919 struct tty *tp;
316670eb
A		 920 struct pgrp *pg;
921 struct session *sessp;
2d21ac55 922 kauth_cred_t my_cred;
2d21ac55
A		 923
924 pg = proc_pgrp(p);
925 sessp = proc_session(p);
1c79356b 926
2d21ac55 927 if (pg != PGRP_NULL) {
2d21ac55
A		 928 ep->e_pgid = p->p_pgrpid;
929 ep->e_jobc = pg->pg_jobc;
316670eb 930 if (sessp != SESSION_NULL && sessp->s_ttyvp)
55e303ae 931 ep->e_flag = EPROC_CTTY;
55e303ae 932 }
2d21ac55 933 ep->e_ppid = p->p_ppid;
91447636 934 if (p->p_ucred) {
2d21ac55 935 my_cred = kauth_cred_proc_ref(p);
91447636
A		 936
937 /* A fake historical pcred */
6d2010ae
A		 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);
316670eb 942
91447636 943 /* A fake historical *kauth_cred_t */
2d21ac55
A		 944 ep->e_ucred.cr_ref = my_cred->cr_ref;
945 ep->e_ucred.cr_uid = kauth_cred_getuid(my_cred);
6d2010ae 946 ep->e_ucred.cr_ngroups = posix_cred_get(my_cred)->cr_ngroups;
316670eb
A		 947 bcopy(posix_cred_get(my_cred)->cr_groups,
948 ep->e_ucred.cr_groups, NGROUPS * sizeof (gid_t));
91447636 949
2d21ac55 950 kauth_cred_unref(&my_cred);
55e303ae 951 }
55e303ae 952
2d21ac55 953 if ((p->p_flag & P_CONTROLT) && (sessp != SESSION_NULL) &&
b0d623f7 954 (tp = SESSION_TP(sessp))) {
1c79356b 955 ep->e_tdev = tp->t_dev;
2d21ac55 956 ep->e_tpgid = sessp->s_ttypgrpid;
1c79356b
A		 957 } else
958 ep->e_tdev = NODEV;
55e303ae 959
316670eb
A		 960 if (sessp != SESSION_NULL) {
961 if (SESS_LEADER(p, sessp))
962 ep->e_flag |= EPROC_SLEADER;
2d21ac55 963 session_rele(sessp);
316670eb
A		 964 }
965 if (pg != PGRP_NULL)
2d21ac55 966 pg_rele(pg);
1c79356b 967}
55e303ae 968
91447636 969/*
316670eb 970 * Fill in non-zero fields of an LP64 eproc structure for the specified process.
91447636 971 */
6d2010ae 972STATIC void
316670eb 973fill_user64_eproc(proc_t p, struct user64_eproc *__restrict ep)
91447636 974{
2d21ac55 975 struct tty *tp;
316670eb
A		 976 struct pgrp *pg;
977 struct session *sessp;
2d21ac55
A		 978 kauth_cred_t my_cred;
979
980 pg = proc_pgrp(p);
981 sessp = proc_session(p);
91447636 982
2d21ac55 983 if (pg != PGRP_NULL) {
2d21ac55
A		 984 ep->e_pgid = p->p_pgrpid;
985 ep->e_jobc = pg->pg_jobc;
316670eb
A		 986 if (sessp != SESSION_NULL && sessp->s_ttyvp)
987 ep->e_flag = EPROC_CTTY;
91447636 988 }
2d21ac55 989 ep->e_ppid = p->p_ppid;
91447636 990 if (p->p_ucred) {
2d21ac55 991 my_cred = kauth_cred_proc_ref(p);
91447636
A		 992
993 /* A fake historical pcred */
6d2010ae
A		 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);
91447636
A		 998
999 /* A fake historical *kauth_cred_t */
2d21ac55
A		 1000 ep->e_ucred.cr_ref = my_cred->cr_ref;
1001 ep->e_ucred.cr_uid = kauth_cred_getuid(my_cred);
6d2010ae 1002 ep->e_ucred.cr_ngroups = posix_cred_get(my_cred)->cr_ngroups;
316670eb
A		 1003 bcopy(posix_cred_get(my_cred)->cr_groups,
1004 ep->e_ucred.cr_groups, NGROUPS * sizeof (gid_t));
91447636 1005
2d21ac55 1006 kauth_cred_unref(&my_cred);
91447636 1007 }
91447636 1008
2d21ac55 1009 if ((p->p_flag & P_CONTROLT) && (sessp != SESSION_NULL) &&
b0d623f7 1010 (tp = SESSION_TP(sessp))) {
91447636 1011 ep->e_tdev = tp->t_dev;
2d21ac55 1012 ep->e_tpgid = sessp->s_ttypgrpid;
91447636
A		 1013 } else
1014 ep->e_tdev = NODEV;
1015
316670eb
A		 1016 if (sessp != SESSION_NULL) {
1017 if (SESS_LEADER(p, sessp))
1018 ep->e_flag |= EPROC_SLEADER;
2d21ac55 1019 session_rele(sessp);
316670eb 1020 }
2d21ac55
A		 1021 if (pg != PGRP_NULL)
1022 pg_rele(pg);
91447636
A		 1023}
1024
1c79356b
A		 1025/*
1026 * Fill in an eproc structure for the specified process.
316670eb 1027 * bzeroed by our caller, so only set non-zero fields.
1c79356b 1028 */
6d2010ae 1029STATIC void
316670eb 1030fill_user32_externproc(proc_t p, struct user32_extern_proc *__restrict exp)
1c79356b 1031{
b0d623f7
A		 1032 exp->p_starttime.tv_sec = p->p_start.tv_sec;
1033 exp->p_starttime.tv_usec = p->p_start.tv_usec;
316670eb 1034 exp->p_flag = p->p_flag;
2d21ac55
A		 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;
316670eb
A		 1041 exp->p_stat = p->p_stat;
1042 exp->p_pid = p->p_pid;
1043 exp->p_oppid = p->p_oppid;
1c79356b 1044 /* Mach related */
316670eb
A		 1045 exp->user_stack = p->user_stack;
1046 exp->p_debugger = p->p_debugger;
1047 exp->sigwait = p->sigwait;
1c79356b 1048 /* scheduling */
2d21ac55 1049#ifdef _PROC_HAS_SCHEDINFO_
316670eb
A		 1050 exp->p_estcpu = p->p_estcpu;
1051 exp->p_pctcpu = p->p_pctcpu;
1052 exp->p_slptime = p->p_slptime;
2d21ac55 1053#endif
316670eb
A		 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;
91447636
A		 1074}
1075
1076/*
1077 * Fill in an LP64 version of extern_proc structure for the specified process.
1078 */
6d2010ae 1079STATIC void
316670eb 1080fill_user64_externproc(proc_t p, struct user64_extern_proc *__restrict exp)
91447636 1081{
2d21ac55
A		 1082 exp->p_starttime.tv_sec = p->p_start.tv_sec;
1083 exp->p_starttime.tv_usec = p->p_start.tv_usec;
316670eb 1084 exp->p_flag = p->p_flag;
2d21ac55
A		 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;
316670eb
A		 1091 exp->p_stat = p->p_stat;
1092 exp->p_pid = p->p_pid;
1093 exp->p_oppid = p->p_oppid;
91447636 1094 /* Mach related */
316670eb
A		 1095 exp->user_stack = p->user_stack;
1096 exp->p_debugger = p->p_debugger;
1097 exp->sigwait = p->sigwait;
91447636 1098 /* scheduling */
2d21ac55 1099#ifdef _PROC_HAS_SCHEDINFO_
316670eb
A		 1100 exp->p_estcpu = p->p_estcpu;
1101 exp->p_pctcpu = p->p_pctcpu;
1102 exp->p_slptime = p->p_slptime;
2d21ac55 1103#endif
91447636
A		 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;
316670eb 1106
91447636
A		 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;
316670eb 1109
91447636
A		 1110 exp->p_rtime.tv_sec = p->p_rtime.tv_sec;
1111 exp->p_rtime.tv_usec = p->p_rtime.tv_usec;
316670eb
A		 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;
1c79356b
A		 1120}
1121
6d2010ae 1122STATIC void
316670eb 1123fill_user32_proc(proc_t p, struct user32_kinfo_proc *__restrict kp)
55e303ae 1124{
316670eb 1125 /* on a 64 bit kernel, 32 bit users get some truncated information */
b0d623f7
A		 1126 fill_user32_externproc(p, &kp->kp_proc);
1127 fill_user32_eproc(p, &kp->kp_eproc);
55e303ae
A		 1128}
1129
6d2010ae 1130STATIC void
316670eb 1131fill_user64_proc(proc_t p, struct user64_kinfo_proc *__restrict kp)
91447636 1132{
b0d623f7
A		 1133 fill_user64_externproc(p, &kp->kp_proc);
1134 fill_user64_eproc(p, &kp->kp_eproc);
91447636
A		 1135}
1136
6d2010ae
A		 1137STATIC int
1138sysctl_kdebug_ops SYSCTL_HANDLER_ARGS
1c79356b 1139{
6d2010ae
A		 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
9bccf70c 1148 int ret=0;
1c79356b 1149
c910b4d9
A		 1150 if (namelen == 0)
1151 return(ENOTSUP);
39037602 1152
1c79356b
A		 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:
3e170ce0
A		 1163 case KERN_KDWRITETR:
1164 case KERN_KDWRITEMAP:
39037602 1165 case KERN_KDTEST:
1c79356b
A		 1166 case KERN_KDPIDTR:
1167 case KERN_KDTHRMAP:
1168 case KERN_KDPIDEX:
1c79356b 1169 case KERN_KDSETBUF:
39236c6e 1170 case KERN_KDREADCURTHRMAP:
316670eb 1171 case KERN_KDSET_TYPEFILTER:
3e170ce0 1172 case KERN_KDBUFWAIT:
39236c6e 1173 case KERN_KDCPUMAP:
3e170ce0
A		 1174 case KERN_KDWRITEMAP_V3:
1175 case KERN_KDWRITETR_V3:
39037602
A		 1176 ret = kdbg_control(name, namelen, oldp, oldlenp);
1177 break;
1c79356b 1178 default:
91447636 1179 ret= ENOTSUP;
1c79356b
A		 1180 break;
1181 }
6d2010ae
A		 1182
1183 /* adjust index so we return the right required/consumed amount */
1184 if (!ret)
1185 req->oldidx += req->oldlen;
1186
1187 return (ret);
1c79356b 1188}
6d2010ae
A		 1189SYSCTL_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 "");
1c79356b 1195
1c79356b 1196
5ba3f43e 1197#if !CONFIG_EMBEDDED
1c79356b 1198/*
55e303ae
A		 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.
1c79356b 1201 */
6d2010ae
A		 1202STATIC int
1203sysctl_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);
55e303ae 1221}
6d2010ae
A		 1222SYSCTL_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 "");
5ba3f43e 1228#endif /* !CONFIG_EMBEDDED */
6d2010ae
A		 1229
1230STATIC int
1231sysctl_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;
55e303ae 1241
6d2010ae
A		 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);
55e303ae 1249}
6d2010ae
A		 1250SYSCTL_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 "");
55e303ae 1256
6d2010ae 1257STATIC int
c910b4d9 1258sysctl_procargsx(int *name, u_int namelen, user_addr_t where,
2d21ac55 1259 size_t *sizep, proc_t cur_proc, int argc_yes)
1c79356b 1260{
2d21ac55 1261 proc_t p;
91447636 1262 int buflen = where != USER_ADDR_NULL ? *sizep : 0;
1c79356b 1263 int error = 0;
2d21ac55 1264 struct _vm_map *proc_map;
1c79356b
A		 1265 struct task * task;
1266 vm_map_copy_t tmp;
91447636
A		 1267 user_addr_t arg_addr;
1268 size_t arg_size;
1c79356b 1269 caddr_t data;
2d21ac55 1270 size_t argslen=0;
91447636 1271 int size;
1c79356b 1272 vm_offset_t copy_start, copy_end;
1c79356b
A		 1273 kern_return_t ret;
1274 int pid;
2d21ac55
A		 1275 kauth_cred_t my_cred;
1276 uid_t uid;
5ba3f43e 1277 int argc = -1;
1c79356b 1278
c910b4d9
A		 1279 if ( namelen < 1 )
1280 return(EINVAL);
b0d623f7 1281
55e303ae 1282 if (argc_yes)
91447636 1283 buflen -= sizeof(int); /* reserve first word to return argc */
1c79356b 1284
91447636
A		 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)) {
1c79356b
A		 1290 return(EINVAL);
1291 }
1292 arg_size = buflen;
1293
1294 /*
1295 * Lookup process by pid
1296 */
1297 pid = name[0];
2d21ac55 1298 p = proc_find(pid);
1c79356b
A		 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
2d21ac55
A		 1313 if (!p->user_stack) {
1314 proc_rele(p);
1c79356b 1315 return(EINVAL);
2d21ac55 1316 }
1c79356b 1317
91447636
A		 1318 if (where == USER_ADDR_NULL) {
1319 /* caller only wants to know length of proc args data */
2d21ac55
A		 1320 if (sizep == NULL) {
1321 proc_rele(p);
91447636 1322 return(EFAULT);
2d21ac55 1323 }
5ba3f43e
A		 1324
1325 size = p->p_argslen;
2d21ac55 1326 proc_rele(p);
5ba3f43e
A		 1327 if (argc_yes) {
1328 size += sizeof(int);
1329 } else {
91447636
A		 1330 /*
1331 * old PROCARGS will return the executable's path and plus some
1332 * extra space for work alignment and data tags
1333 */
5ba3f43e
A		 1334 size += PATH_MAX + (6 * sizeof(int));
1335 }
91447636
A		 1336 size += (size & (sizeof(int) - 1)) ? (sizeof(int) - (size & (sizeof(int) - 1))) : 0;
1337 *sizep = size;
1338 return (0);
1339 }
5ba3f43e 1340
2d21ac55
A		 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);
9bccf70c 1348 return (EINVAL);
2d21ac55 1349 }
91447636
A		 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;
1c79356b 1355
1c79356b
A		 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;
2d21ac55
A		 1362 if (task == NULL) {
1363 proc_rele(p);
1c79356b 1364 return(EINVAL);
2d21ac55 1365 }
5ba3f43e
A		 1366
1367 /* save off argc before releasing the proc */
1368 argc = p->p_argc;
1369
2d21ac55 1370 argslen = p->p_argslen;
0b4e3aa0 1371 /*
91447636
A		 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).
0b4e3aa0 1377 */
91447636 1378 task_reference(task);
2d21ac55 1379 proc_rele(p);
91447636
A		 1380 proc_map = get_task_map_reference(task);
1381 task_deallocate(task);
2d21ac55 1382
91447636
A		 1383 if (proc_map == NULL)
1384 return(EINVAL);
1c79356b 1385
91447636 1386
3e170ce0 1387 ret = kmem_alloc(kernel_map, &copy_start, round_page(arg_size), VM_KERN_MEMORY_BSD);
1c79356b 1388 if (ret != KERN_SUCCESS) {
91447636 1389 vm_map_deallocate(proc_map);
1c79356b
A		 1390 return(ENOMEM);
1391 }
1392
91447636 1393 copy_end = round_page(copy_start + arg_size);
1c79356b 1394
91447636
A		 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);
1c79356b 1398 kmem_free(kernel_map, copy_start,
91447636 1399 round_page(arg_size));
1c79356b
A		 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 */
91447636 1407 vm_map_deallocate(proc_map);
1c79356b 1408
91447636
A		 1409 if( vm_map_copy_overwrite(kernel_map,
1410 (vm_map_address_t)copy_start,
1411 tmp, FALSE) != KERN_SUCCESS) {
1c79356b 1412 kmem_free(kernel_map, copy_start,
91447636 1413 round_page(arg_size));
2dced7af 1414 vm_map_copy_discard(tmp);
1c79356b
A		 1415 return (EIO);
1416 }
1417
2d21ac55
A		 1418 if (arg_size > argslen) {
1419 data = (caddr_t) (copy_end - argslen);
1420 size = argslen;
55e303ae 1421 } else {
91447636
A		 1422 data = (caddr_t) (copy_end - arg_size);
1423 size = arg_size;
55e303ae 1424 }
1c79356b 1425
3e170ce0
A		 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
55e303ae
A		 1440 if (argc_yes) {
1441 /* Put processes argc as the first word in the copyout buffer */
5ba3f43e 1442 suword(where, argc);
91447636
A		 1443 error = copyout(data, (where + sizeof(int)), size);
1444 size += sizeof(int);
55e303ae
A		 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 */
2d21ac55 1456 if ( (! error) && (buflen > 0 && (u_int)buflen > argslen) )
55e303ae 1457 {
91447636 1458 int binPath_sz, alignedBinPath_sz = 0;
55e303ae 1459 int extraSpaceNeeded, addThis;
91447636 1460 user_addr_t placeHere;
55e303ae 1461 char * str = (char *) data;
91447636 1462 int max_len = size;
55e303ae
A		 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
91447636 1477 /* If we have a NUL terminator, copy it, too */
55e303ae
A		 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 */
91447636 1483 alignedBinPath_sz += (binPath_sz & (sizeof(int)-1)) ? (sizeof(int)-(binPath_sz & (sizeof(int)-1))) : 0;
55e303ae
A		 1484
1485 placeHere = where + size;
1486
1487 /* Account for the bytes needed to keep placeHere word aligned */
91447636 1488 addThis = (placeHere & (sizeof(int)-1)) ? (sizeof(int)-(placeHere & (sizeof(int)-1))) : 0;
55e303ae
A		 1489
1490 /* Add up all the space that is needed */
91447636 1491 extraSpaceNeeded = alignedBinPath_sz + addThis + binPath_sz + (4 * sizeof(int));
55e303ae
A		 1492
1493 /* is there is room to tack on argv[0]? */
2d21ac55 1494 if ( (buflen & ~(sizeof(int)-1)) >= ( argslen + extraSpaceNeeded ))
55e303ae
A		 1495 {
1496 placeHere += addThis;
1497 suword(placeHere, 0);
91447636 1498 placeHere += sizeof(int);
55e303ae 1499 suword(placeHere, 0xBFFF0000);
91447636 1500 placeHere += sizeof(int);
55e303ae 1501 suword(placeHere, 0);
91447636 1502 placeHere += sizeof(int);
55e303ae
A		 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);
1c79356b
A		 1516 }
1517 if (error) {
1518 return(error);
1519 }
1520
91447636 1521 if (where != USER_ADDR_NULL)
1c79356b
A		 1522 *sizep = size;
1523 return (0);
1524}
55e303ae
A		 1525
1526
1527/*
2d21ac55 1528 * Max number of concurrent aio requests
55e303ae 1529 */
6d2010ae 1530STATIC int
2d21ac55
A		 1531sysctl_aiomax
1532(__unused struct sysctl_oid *oidp, __unused void *arg1, __unused int arg2, struct sysctl_req *req)
55e303ae 1533{
2d21ac55
A		 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 */
316670eb 1538 if (new_value >= aio_max_requests_per_process && new_value <= AIO_MAX_REQUESTS)
55e303ae
A		 1539 aio_max_requests = new_value;
1540 else
1541 error = EINVAL;
1542 }
2d21ac55
A		 1543 return(error);
1544}
55e303ae
A		 1545
1546
1547/*
2d21ac55 1548 * Max number of concurrent aio requests per process
55e303ae 1549 */
6d2010ae 1550STATIC int
2d21ac55
A		 1551sysctl_aioprocmax
1552(__unused struct sysctl_oid *oidp, __unused void *arg1, __unused int arg2, struct sysctl_req *req)
55e303ae 1553{
2d21ac55
A		 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)
55e303ae
A		 1559 aio_max_requests_per_process = new_value;
1560 else
1561 error = EINVAL;
1562 }
2d21ac55
A		 1563 return(error);
1564}
55e303ae
A		 1565
1566
1567/*
2d21ac55 1568 * Max number of async IO worker threads
55e303ae 1569 */
6d2010ae 1570STATIC int
2d21ac55
A		 1571sysctl_aiothreads
1572(__unused struct sysctl_oid *oidp, __unused void *arg1, __unused int arg2, struct sysctl_req *req)
55e303ae 1573{
2d21ac55
A		 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 */
55e303ae 1578 if (new_value > aio_worker_threads ) {
2d21ac55 1579 _aio_create_worker_threads((new_value - aio_worker_threads));
55e303ae
A		 1580 aio_worker_threads = new_value;
1581 }
1582 else
1583 error = EINVAL;
1584 }
2d21ac55
A		 1585 return(error);
1586}
55e303ae
A		 1587
1588
1589/*
2d21ac55 1590 * System-wide limit on the max number of processes
55e303ae 1591 */
6d2010ae 1592STATIC int
2d21ac55
A		 1593sysctl_maxproc
1594(__unused struct sysctl_oid *oidp, __unused void *arg1, __unused int arg2, struct sysctl_req *req)
55e303ae 1595{
2d21ac55
A		 1596 int new_value, changed;
1597 int error = sysctl_io_number(req, maxproc, sizeof(int), &new_value, &changed);
1598 if (changed) {
b0d623f7 1599 AUDIT_ARG(value32, new_value);
2d21ac55
A		 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
55e303ae
A		 1605 error = EINVAL;
1606 }
2d21ac55
A		 1607 return(error);
1608}
55e303ae 1609
2d21ac55 1610SYSCTL_STRING(_kern, KERN_OSTYPE, ostype,
6d2010ae 1611 CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED,
2d21ac55
A		 1612 ostype, 0, "");
1613SYSCTL_STRING(_kern, KERN_OSRELEASE, osrelease,
6d2010ae 1614 CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED,
2d21ac55
A		 1615 osrelease, 0, "");
1616SYSCTL_INT(_kern, KERN_OSREV, osrevision,
6d2010ae 1617 CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED,
b0d623f7 1618 (int *)NULL, BSD, "");
2d21ac55 1619SYSCTL_STRING(_kern, KERN_VERSION, version,
6d2010ae 1620 CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED,
2d21ac55 1621 version, 0, "");
6d2010ae
A		 1622SYSCTL_STRING(_kern, OID_AUTO, uuid,
1623 CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED,
39236c6e 1624 &kernel_uuid_string[0], 0, "");
b0d623f7 1625#if DEBUG
5c9f4661
A		 1626#ifndef DKPR
1627#define DKPR 1
1628#endif
1629#endif
1630
1631#if DKPR
b0d623f7
A		 1632int debug_kprint_syscall = 0;
1633char debug_kprint_syscall_process[MAXCOMLEN+1];
1634
6d2010ae 1635/* Thread safe: bits and string value are not used to reclaim state */
b0d623f7 1636SYSCTL_INT (_debug, OID_AUTO, kprint_syscall,
6d2010ae 1637 CTLFLAG_RW | CTLFLAG_LOCKED, &debug_kprint_syscall, 0, "kprintf syscall tracing");
b0d623f7 1638SYSCTL_STRING(_debug, OID_AUTO, kprint_syscall_process,
6d2010ae 1639 CTLFLAG_RW | CTLFLAG_LOCKED, debug_kprint_syscall_process, sizeof(debug_kprint_syscall_process),
b0d623f7
A		 1640 "name of process for kprintf syscall tracing");
1641
1642int debug_kprint_current_process(const char **namep)
1643{
1644 struct proc *p = current_proc();
1645
1646 if (p == NULL) {
1647 return 0;
1648 }
1649
1650 if (debug_kprint_syscall_process[0]) {
1651 /* user asked to scope tracing to a particular process name */
1652 if(0 == strncmp(debug_kprint_syscall_process,
1653 p->p_comm, sizeof(debug_kprint_syscall_process))) {
1654 /* no value in telling the user that we traced what they asked */
1655 if(namep) *namep = NULL;
1656
1657 return 1;
1658 } else {
1659 return 0;
1660 }
1661 }
1662
1663 /* trace all processes. Tell user what we traced */
1664 if (namep) {
1665 *namep = p->p_comm;
1666 }
1667
1668 return 1;
1669}
1670#endif
1671
2d21ac55
A		 1672/* PR-5293665: need to use a callback function for kern.osversion to set
1673 * osversion in IORegistry */
55e303ae 1674
6d2010ae 1675STATIC int
2d21ac55 1676sysctl_osversion(__unused struct sysctl_oid *oidp, void *arg1, int arg2, struct sysctl_req *req)
55e303ae 1677{
2d21ac55 1678 int rval = 0;
55e303ae 1679
2d21ac55
A		 1680 rval = sysctl_handle_string(oidp, arg1, arg2, req);
1681
1682 if (req->newptr) {
1683 IORegistrySetOSBuildVersion((char *)arg1);
1684 }
1685
1686 return rval;
1687}
1688
1689SYSCTL_PROC(_kern, KERN_OSVERSION, osversion,
6d2010ae 1690 CTLFLAG_RW | CTLFLAG_KERN | CTLTYPE_STRING | CTLFLAG_LOCKED,
2d21ac55
A		 1691 osversion, 256 /* OSVERSIZE*/,
1692 sysctl_osversion, "A", "");
1693
5ba3f43e
A		 1694static uint64_t osvariant_status = 0;
1695
1696STATIC int
1697sysctl_osvariant_status(__unused struct sysctl_oid *oidp, void *arg1, int arg2, struct sysctl_req *req)
1698{
1699 if (req->newptr != 0) {
1700 /*
1701 * Can only ever be set by launchd, and only once at boot.
1702 */
1703 if (req->p->p_pid != 1 || osvariant_status != 0) {
1704 return EPERM;
1705 }
1706 }
1707
1708 return sysctl_handle_quad(oidp, arg1, arg2, req);
1709}
1710
1711SYSCTL_PROC(_kern, OID_AUTO, osvariant_status,
1712 CTLFLAG_RW | CTLTYPE_QUAD | CTLFLAG_LOCKED | CTLFLAG_MASKED,
1713 &osvariant_status, sizeof(osvariant_status),
1714 sysctl_osvariant_status, "Q", "Opaque flags used to cache OS variant information");
1715
6d2010ae 1716STATIC int
2d21ac55
A		 1717sysctl_sysctl_bootargs
1718(__unused struct sysctl_oid *oidp, __unused void *arg1, __unused int arg2, struct sysctl_req *req)
1719{
1720 int error;
5ba3f43e
A		 1721 /* BOOT_LINE_LENGTH */
1722#if CONFIG_EMBEDDED
1723 size_t boot_args_len = 256;
1724#else
1725 size_t boot_args_len = 1024;
1726#endif
1727 char buf[boot_args_len];
2d21ac55 1728
5ba3f43e
A		 1729 strlcpy(buf, PE_boot_args(), boot_args_len);
1730 error = sysctl_io_string(req, buf, boot_args_len, 0, NULL);
2d21ac55
A		 1731 return(error);
1732}
1733
1734SYSCTL_PROC(_kern, OID_AUTO, bootargs,
1735 CTLFLAG_LOCKED | CTLFLAG_RD | CTLFLAG_KERN | CTLTYPE_STRING,
1736 NULL, 0,
1737 sysctl_sysctl_bootargs, "A", "bootargs");
1738
1739SYSCTL_INT(_kern, KERN_MAXFILES, maxfiles,
6d2010ae 1740 CTLFLAG_RW | CTLFLAG_KERN | CTLFLAG_LOCKED,
2d21ac55
A		 1741 &maxfiles, 0, "");
1742SYSCTL_INT(_kern, KERN_ARGMAX, argmax,
6d2010ae 1743 CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED,
b0d623f7 1744 (int *)NULL, ARG_MAX, "");
2d21ac55 1745SYSCTL_INT(_kern, KERN_POSIX1, posix1version,
6d2010ae 1746 CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED,
b0d623f7 1747 (int *)NULL, _POSIX_VERSION, "");
2d21ac55 1748SYSCTL_INT(_kern, KERN_NGROUPS, ngroups,
6d2010ae 1749 CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED,
b0d623f7 1750 (int *)NULL, NGROUPS_MAX, "");
2d21ac55 1751SYSCTL_INT(_kern, KERN_JOB_CONTROL, job_control,
6d2010ae 1752 CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED,
b0d623f7 1753 (int *)NULL, 1, "");
2d21ac55
A		 1754#if 1 /* _POSIX_SAVED_IDS from <unistd.h> */
1755SYSCTL_INT(_kern, KERN_SAVED_IDS, saved_ids,
6d2010ae 1756 CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED,
b0d623f7 1757 (int *)NULL, 1, "");
2d21ac55
A		 1758#else
1759SYSCTL_INT(_kern, KERN_SAVED_IDS, saved_ids,
6d2010ae 1760 CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED,
2d21ac55
A		 1761 NULL, 0, "");
1762#endif
b0d623f7 1763SYSCTL_INT(_kern, OID_AUTO, num_files,
6d2010ae 1764 CTLFLAG_RD | CTLFLAG_LOCKED,
b0d623f7
A		 1765 &nfiles, 0, "");
1766SYSCTL_COMPAT_INT(_kern, OID_AUTO, num_vnodes,
6d2010ae 1767 CTLFLAG_RD | CTLFLAG_LOCKED,
b0d623f7
A		 1768 &numvnodes, 0, "");
1769SYSCTL_INT(_kern, OID_AUTO, num_tasks,
6d2010ae 1770 CTLFLAG_RD | CTLFLAG_LOCKED,
b0d623f7
A		 1771 &task_max, 0, "");
1772SYSCTL_INT(_kern, OID_AUTO, num_threads,
6d2010ae 1773 CTLFLAG_RD | CTLFLAG_LOCKED,
b0d623f7
A		 1774 &thread_max, 0, "");
1775SYSCTL_INT(_kern, OID_AUTO, num_taskthreads,
6d2010ae 1776 CTLFLAG_RD | CTLFLAG_LOCKED,
b0d623f7 1777 &task_threadmax, 0, "");
2d21ac55 1778
6d2010ae 1779STATIC int
2d21ac55
A		 1780sysctl_maxvnodes (__unused struct sysctl_oid *oidp, __unused void *arg1, __unused int arg2, struct sysctl_req *req)
1781{
b0d623f7 1782 int oldval = desiredvnodes;
2d21ac55 1783 int error = sysctl_io_number(req, desiredvnodes, sizeof(int), &desiredvnodes, NULL);
b0d623f7
A		 1784
1785 if (oldval != desiredvnodes) {
b0d623f7
A		 1786 resize_namecache(desiredvnodes);
1787 }
1788
2d21ac55
A		 1789 return(error);
1790}
1791
6d2010ae
A		 1792SYSCTL_INT(_kern, OID_AUTO, namecache_disabled,
1793 CTLFLAG_RW | CTLFLAG_LOCKED,
1794 &nc_disabled, 0, "");
1795
2d21ac55 1796SYSCTL_PROC(_kern, KERN_MAXVNODES, maxvnodes,
6d2010ae 1797 CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_LOCKED,
2d21ac55
A		 1798 0, 0, sysctl_maxvnodes, "I", "");
1799
1800SYSCTL_PROC(_kern, KERN_MAXPROC, maxproc,
6d2010ae 1801 CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_LOCKED,
2d21ac55
A		 1802 0, 0, sysctl_maxproc, "I", "");
1803
1804SYSCTL_PROC(_kern, KERN_AIOMAX, aiomax,
6d2010ae 1805 CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_LOCKED,
2d21ac55
A		 1806 0, 0, sysctl_aiomax, "I", "");
1807
1808SYSCTL_PROC(_kern, KERN_AIOPROCMAX, aioprocmax,
6d2010ae 1809 CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_LOCKED,
2d21ac55
A		 1810 0, 0, sysctl_aioprocmax, "I", "");
1811
1812SYSCTL_PROC(_kern, KERN_AIOTHREADS, aiothreads,
6d2010ae 1813 CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_LOCKED,
2d21ac55
A		 1814 0, 0, sysctl_aiothreads, "I", "");
1815
fe8ab488
A		 1816#if (DEVELOPMENT || DEBUG)
1817extern int sched_smt_balance;
1818SYSCTL_INT(_kern, OID_AUTO, sched_smt_balance,
1819 CTLFLAG_KERN| CTLFLAG_RW| CTLFLAG_LOCKED,
1820 &sched_smt_balance, 0, "");
5ba3f43e
A		 1821#if __arm__ || __arm64__
1822extern uint32_t perfcontrol_requested_recommended_cores;
1823SYSCTL_UINT(_kern, OID_AUTO, sched_recommended_cores,
1824 CTLFLAG_KERN | CTLFLAG_RD | CTLFLAG_LOCKED,
1825 &perfcontrol_requested_recommended_cores, 0, "");
1826
1827/* Scheduler perfcontrol callouts sysctls */
1828SYSCTL_DECL(_kern_perfcontrol_callout);
1829SYSCTL_NODE(_kern, OID_AUTO, perfcontrol_callout, CTLFLAG_RW | CTLFLAG_LOCKED, 0,
1830 "scheduler perfcontrol callouts");
1831
1832extern int perfcontrol_callout_stats_enabled;
1833SYSCTL_INT(_kern_perfcontrol_callout, OID_AUTO, stats_enabled,
1834 CTLFLAG_KERN| CTLFLAG_RW| CTLFLAG_LOCKED,
1835 &perfcontrol_callout_stats_enabled, 0, "");
1836
1837extern uint64_t perfcontrol_callout_stat_avg(perfcontrol_callout_type_t type,
1838 perfcontrol_callout_stat_t stat);
1839
1840/* On-Core Callout */
1841STATIC int
1842sysctl_perfcontrol_callout_stat
1843(__unused struct sysctl_oid *oidp, void *arg1, int arg2, struct sysctl_req *req)
1844{
1845 perfcontrol_callout_stat_t stat = (perfcontrol_callout_stat_t)arg1;
1846 perfcontrol_callout_type_t type = (perfcontrol_callout_type_t)arg2;
1847 return sysctl_io_number(req, (int)perfcontrol_callout_stat_avg(type, stat),
1848 sizeof(int), NULL, NULL);
1849}
1850
1851SYSCTL_PROC(_kern_perfcontrol_callout, OID_AUTO, oncore_instr,
1852 CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_LOCKED,
1853 (void *)PERFCONTROL_STAT_INSTRS, PERFCONTROL_CALLOUT_ON_CORE,
1854 sysctl_perfcontrol_callout_stat, "I", "");
1855SYSCTL_PROC(_kern_perfcontrol_callout, OID_AUTO, oncore_cycles,
1856 CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_LOCKED,
1857 (void *)PERFCONTROL_STAT_CYCLES, PERFCONTROL_CALLOUT_ON_CORE,
1858 sysctl_perfcontrol_callout_stat, "I", "");
1859SYSCTL_PROC(_kern_perfcontrol_callout, OID_AUTO, offcore_instr,
1860 CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_LOCKED,
1861 (void *)PERFCONTROL_STAT_INSTRS, PERFCONTROL_CALLOUT_OFF_CORE,
1862 sysctl_perfcontrol_callout_stat, "I", "");
1863SYSCTL_PROC(_kern_perfcontrol_callout, OID_AUTO, offcore_cycles,
1864 CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_LOCKED,
1865 (void *)PERFCONTROL_STAT_CYCLES, PERFCONTROL_CALLOUT_OFF_CORE,
1866 sysctl_perfcontrol_callout_stat, "I", "");
1867SYSCTL_PROC(_kern_perfcontrol_callout, OID_AUTO, context_instr,
1868 CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_LOCKED,
1869 (void *)PERFCONTROL_STAT_INSTRS, PERFCONTROL_CALLOUT_CONTEXT,
1870 sysctl_perfcontrol_callout_stat, "I", "");
1871SYSCTL_PROC(_kern_perfcontrol_callout, OID_AUTO, context_cycles,
1872 CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_LOCKED,
1873 (void *)PERFCONTROL_STAT_CYCLES, PERFCONTROL_CALLOUT_CONTEXT,
1874 sysctl_perfcontrol_callout_stat, "I", "");
1875SYSCTL_PROC(_kern_perfcontrol_callout, OID_AUTO, update_instr,
1876 CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_LOCKED,
1877 (void *)PERFCONTROL_STAT_INSTRS, PERFCONTROL_CALLOUT_STATE_UPDATE,
1878 sysctl_perfcontrol_callout_stat, "I", "");
1879SYSCTL_PROC(_kern_perfcontrol_callout, OID_AUTO, update_cycles,
1880 CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_LOCKED,
1881 (void *)PERFCONTROL_STAT_CYCLES, PERFCONTROL_CALLOUT_STATE_UPDATE,
1882 sysctl_perfcontrol_callout_stat, "I", "");
1883
1884#endif /* __arm__ || __arm64__ */
1885#endif /* (DEVELOPMENT || DEBUG) */
fe8ab488 1886
6d2010ae 1887STATIC int
2d21ac55
A		 1888sysctl_securelvl
1889(__unused struct sysctl_oid *oidp, __unused void *arg1, __unused int arg2, struct sysctl_req *req)
1890{
1891 int new_value, changed;
1892 int error = sysctl_io_number(req, securelevel, sizeof(int), &new_value, &changed);
1893 if (changed) {
1894 if (!(new_value < securelevel && req->p->p_pid != 1)) {
1895 proc_list_lock();
1896 securelevel = new_value;
1897 proc_list_unlock();
1898 } else {
1899 error = EPERM;
e5568f75 1900 }
2d21ac55
A		 1901 }
1902 return(error);
1903}
1904
1905SYSCTL_PROC(_kern, KERN_SECURELVL, securelevel,
6d2010ae 1906 CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_LOCKED,
2d21ac55
A		 1907 0, 0, sysctl_securelvl, "I", "");
1908
1909
6d2010ae 1910STATIC int
2d21ac55
A		 1911sysctl_domainname
1912(__unused struct sysctl_oid *oidp, __unused void *arg1, __unused int arg2, struct sysctl_req *req)
1913{
1914 int error, changed;
1915 error = sysctl_io_string(req, domainname, sizeof(domainname), 0, &changed);
1916 if (changed) {
1917 domainnamelen = strlen(domainname);
1918 }
1919 return(error);
1920}
1921
1922SYSCTL_PROC(_kern, KERN_DOMAINNAME, nisdomainname,
6d2010ae 1923 CTLTYPE_STRING | CTLFLAG_RW | CTLFLAG_LOCKED,
2d21ac55
A		 1924 0, 0, sysctl_domainname, "A", "");
1925
b0d623f7 1926SYSCTL_COMPAT_INT(_kern, KERN_HOSTID, hostid,
6d2010ae 1927 CTLFLAG_RW | CTLFLAG_KERN | CTLFLAG_LOCKED,
2d21ac55
A		 1928 &hostid, 0, "");
1929
6d2010ae 1930STATIC int
2d21ac55
A		 1931sysctl_hostname
1932(__unused struct sysctl_oid *oidp, __unused void *arg1, __unused int arg2, struct sysctl_req *req)
1933{
1934 int error, changed;
1935 error = sysctl_io_string(req, hostname, sizeof(hostname), 1, &changed);
1936 if (changed) {
1937 hostnamelen = req->newlen;
1938 }
1939 return(error);
1940}
1941
1942
1943SYSCTL_PROC(_kern, KERN_HOSTNAME, hostname,
6d2010ae 1944 CTLTYPE_STRING | CTLFLAG_RW | CTLFLAG_LOCKED,
2d21ac55
A		 1945 0, 0, sysctl_hostname, "A", "");
1946
6d2010ae 1947STATIC int
2d21ac55
A		 1948sysctl_procname
1949(__unused struct sysctl_oid *oidp, __unused void *arg1, __unused int arg2, struct sysctl_req *req)
1950{
1951 /* Original code allowed writing, I'm copying this, although this all makes
1952 no sense to me. Besides, this sysctl is never used. */
1953 return sysctl_io_string(req, &req->p->p_name[0], (2*MAXCOMLEN+1), 1, NULL);
1954}
1955
1956SYSCTL_PROC(_kern, KERN_PROCNAME, procname,
6d2010ae 1957 CTLTYPE_STRING | CTLFLAG_RW | CTLFLAG_ANYBODY | CTLFLAG_LOCKED,
2d21ac55
A		 1958 0, 0, sysctl_procname, "A", "");
1959
1960SYSCTL_INT(_kern, KERN_SPECULATIVE_READS, speculative_reads_disabled,
6d2010ae 1961 CTLFLAG_RW | CTLFLAG_KERN | CTLFLAG_LOCKED,
2d21ac55
A		 1962 &speculative_reads_disabled, 0, "");
1963
fe8ab488 1964SYSCTL_UINT(_kern, OID_AUTO, preheat_max_bytes,
6d2010ae 1965 CTLFLAG_RW | CTLFLAG_KERN | CTLFLAG_LOCKED,
fe8ab488 1966 &preheat_max_bytes, 0, "");
b0d623f7 1967
fe8ab488 1968SYSCTL_UINT(_kern, OID_AUTO, preheat_min_bytes,
6d2010ae 1969 CTLFLAG_RW | CTLFLAG_KERN | CTLFLAG_LOCKED,
fe8ab488 1970 &preheat_min_bytes, 0, "");
b0d623f7 1971
6d2010ae
A		 1972SYSCTL_UINT(_kern, OID_AUTO, speculative_prefetch_max,
1973 CTLFLAG_RW | CTLFLAG_KERN | CTLFLAG_LOCKED,
1974 &speculative_prefetch_max, 0, "");
b0d623f7 1975
316670eb
A		 1976SYSCTL_UINT(_kern, OID_AUTO, speculative_prefetch_max_iosize,
1977 CTLFLAG_RW | CTLFLAG_KERN | CTLFLAG_LOCKED,
1978 &speculative_prefetch_max_iosize, 0, "");
1979
6d2010ae
A		 1980SYSCTL_UINT(_kern, OID_AUTO, vm_page_free_target,
1981 CTLFLAG_RW | CTLFLAG_KERN | CTLFLAG_LOCKED,
1982 &vm_page_free_target, 0, "");
1983
1984SYSCTL_UINT(_kern, OID_AUTO, vm_page_free_min,
1985 CTLFLAG_RW | CTLFLAG_KERN | CTLFLAG_LOCKED,
1986 &vm_page_free_min, 0, "");
1987
1988SYSCTL_UINT(_kern, OID_AUTO, vm_page_free_reserved,
1989 CTLFLAG_RW | CTLFLAG_KERN | CTLFLAG_LOCKED,
1990 &vm_page_free_reserved, 0, "");
1991
1992SYSCTL_UINT(_kern, OID_AUTO, vm_page_speculative_percentage,
1993 CTLFLAG_RW | CTLFLAG_KERN | CTLFLAG_LOCKED,
1994 &vm_page_speculative_percentage, 0, "");
1995
1996SYSCTL_UINT(_kern, OID_AUTO, vm_page_speculative_q_age_ms,
1997 CTLFLAG_RW | CTLFLAG_KERN | CTLFLAG_LOCKED,
1998 &vm_page_speculative_q_age_ms, 0, "");
1999
2000SYSCTL_UINT(_kern, OID_AUTO, vm_max_delayed_work_limit,
2001 CTLFLAG_RW | CTLFLAG_KERN | CTLFLAG_LOCKED,
2002 &vm_max_delayed_work_limit, 0, "");
2003
2004SYSCTL_UINT(_kern, OID_AUTO, vm_max_batch,
2005 CTLFLAG_RW | CTLFLAG_KERN | CTLFLAG_LOCKED,
2006 &vm_max_batch, 0, "");
2007
39236c6e
A		 2008SYSCTL_STRING(_kern, OID_AUTO, bootsessionuuid,
2009 CTLFLAG_RD | CTLFLAG_LOCKED,
2010 &bootsessionuuid_string, sizeof(bootsessionuuid_string) , "");
6d2010ae
A		 2011
2012STATIC int
2d21ac55
A		 2013sysctl_boottime
2014(__unused struct sysctl_oid *oidp, __unused void *arg1, __unused int arg2, struct sysctl_req *req)
2015{
39037602
A		 2016 struct timeval tv;
2017 boottime_timeval(&tv);
b0d623f7 2018 struct proc *p = req->p;
2d21ac55 2019
b0d623f7 2020 if (proc_is64bit(p)) {
5ba3f43e 2021 struct user64_timeval t = {};
39037602
A		 2022 t.tv_sec = tv.tv_sec;
2023 t.tv_usec = tv.tv_usec;
b0d623f7
A		 2024 return sysctl_io_opaque(req, &t, sizeof(t), NULL);
2025 } else {
5ba3f43e 2026 struct user32_timeval t = {};
39037602
A		 2027 t.tv_sec = tv.tv_sec;
2028 t.tv_usec = tv.tv_usec;
b0d623f7
A		 2029 return sysctl_io_opaque(req, &t, sizeof(t), NULL);
2030 }
2d21ac55
A		 2031}
2032
2033SYSCTL_PROC(_kern, KERN_BOOTTIME, boottime,
fe8ab488 2034 CTLTYPE_STRUCT | CTLFLAG_KERN | CTLFLAG_RD | CTLFLAG_LOCKED,
2d21ac55
A		 2035 0, 0, sysctl_boottime, "S,timeval", "");
2036
6d2010ae 2037STATIC int
2d21ac55
A		 2038sysctl_symfile
2039(__unused struct sysctl_oid *oidp, __unused void *arg1, __unused int arg2, struct sysctl_req *req)
2040{
2041 char *str;
2042 int error = get_kernel_symfile(req->p, &str);
2043 if (error)
2044 return (error);
2045 return sysctl_io_string(req, str, 0, 0, NULL);
2046}
2047
2048
2049SYSCTL_PROC(_kern, KERN_SYMFILE, symfile,
6d2010ae 2050 CTLTYPE_STRING | CTLFLAG_RD | CTLFLAG_LOCKED,
2d21ac55
A		 2051 0, 0, sysctl_symfile, "A", "");
2052
2053#if NFSCLIENT
6d2010ae 2054STATIC int
2d21ac55
A		 2055sysctl_netboot
2056(__unused struct sysctl_oid *oidp, __unused void *arg1, __unused int arg2, struct sysctl_req *req)
2057{
2058 return sysctl_io_number(req, netboot_root(), sizeof(int), NULL, NULL);
2059}
2060
2061SYSCTL_PROC(_kern, KERN_NETBOOT, netboot,
6d2010ae 2062 CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_LOCKED,
2d21ac55
A		 2063 0, 0, sysctl_netboot, "I", "");
2064#endif
2065
b7266188 2066#ifdef CONFIG_IMGSRC_ACCESS
6d2010ae
A		 2067/*
2068 * Legacy--act as if only one layer of nesting is possible.
2069 */
2070STATIC int
b7266188
A		 2071sysctl_imgsrcdev
2072(__unused struct sysctl_oid *oidp, __unused void *arg1, __unused int arg2, struct sysctl_req *req)
2073{
2074 vfs_context_t ctx = vfs_context_current();
2075 vnode_t devvp;
2076 int result;
2077
2078 if (!vfs_context_issuser(ctx)) {
2079 return EPERM;
2080 }
2081
6d2010ae 2082 if (imgsrc_rootvnodes[0] == NULL) {
b7266188
A		 2083 return ENOENT;
2084 }
2085
6d2010ae 2086 result = vnode_getwithref(imgsrc_rootvnodes[0]);
b7266188
A		 2087 if (result != 0) {
2088 return result;
2089 }
2090
6d2010ae 2091 devvp = vnode_mount(imgsrc_rootvnodes[0])->mnt_devvp;
b7266188
A		 2092 result = vnode_getwithref(devvp);
2093 if (result != 0) {
2094 goto out;
2095 }
2096
2097 result = sysctl_io_number(req, vnode_specrdev(devvp), sizeof(dev_t), NULL, NULL);
2098
2099 vnode_put(devvp);
2100out:
6d2010ae 2101 vnode_put(imgsrc_rootvnodes[0]);
b7266188
A		 2102 return result;
2103}
2104
2105SYSCTL_PROC(_kern, OID_AUTO, imgsrcdev,
6d2010ae 2106 CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_LOCKED,
b7266188 2107 0, 0, sysctl_imgsrcdev, "I", "");
6d2010ae
A		 2108
2109STATIC int
2110sysctl_imgsrcinfo
2111(__unused struct sysctl_oid *oidp, __unused void *arg1, __unused int arg2, struct sysctl_req *req)
2112{
2113 int error;
5ba3f43e 2114 struct imgsrc_info info[MAX_IMAGEBOOT_NESTING] = {}; /* 2 for now, no problem */
6d2010ae
A		 2115 uint32_t i;
2116 vnode_t rvp, devvp;
2117
2118 if (imgsrc_rootvnodes[0] == NULLVP) {
2119 return ENXIO;
2120 }
2121
2122 for (i = 0; i < MAX_IMAGEBOOT_NESTING; i++) {
2123 /*
2124 * Go get the root vnode.
2125 */
2126 rvp = imgsrc_rootvnodes[i];
2127 if (rvp == NULLVP) {
2128 break;
2129 }
2130
2131 error = vnode_get(rvp);
2132 if (error != 0) {
2133 return error;
2134 }
2135
2136 /*
2137 * For now, no getting at a non-local volume.
2138 */
2139 devvp = vnode_mount(rvp)->mnt_devvp;
2140 if (devvp == NULL) {
2141 vnode_put(rvp);
2142 return EINVAL;
2143 }
2144
2145 error = vnode_getwithref(devvp);
2146 if (error != 0) {
2147 vnode_put(rvp);
2148 return error;
2149 }
2150
2151 /*
2152 * Fill in info.
2153 */
2154 info[i].ii_dev = vnode_specrdev(devvp);
2155 info[i].ii_flags = 0;
2156 info[i].ii_height = i;
2157 bzero(info[i].ii_reserved, sizeof(info[i].ii_reserved));
2158
2159 vnode_put(devvp);
2160 vnode_put(rvp);
2161 }
2162
2163 return sysctl_io_opaque(req, info, i * sizeof(info[0]), NULL);
2164}
2165
2166SYSCTL_PROC(_kern, OID_AUTO, imgsrcinfo,
2167 CTLTYPE_OPAQUE | CTLFLAG_RD | CTLFLAG_LOCKED,
2168 0, 0, sysctl_imgsrcinfo, "I", "");
2169
b7266188
A		 2170#endif /* CONFIG_IMGSRC_ACCESS */
2171
39236c6e
A		 2172
2173SYSCTL_DECL(_kern_timer);
2174SYSCTL_NODE(_kern, OID_AUTO, timer, CTLFLAG_RW | CTLFLAG_LOCKED, 0, "timer");
2175
fe8ab488 2176
39236c6e
A		 2177SYSCTL_INT(_kern_timer, OID_AUTO, coalescing_enabled,
2178 CTLFLAG_KERN | CTLFLAG_RW | CTLFLAG_LOCKED,
6d2010ae
A		 2179 &mach_timer_coalescing_enabled, 0, "");
2180
39236c6e
A		 2181SYSCTL_QUAD(_kern_timer, OID_AUTO, deadline_tracking_bin_1,
2182 CTLFLAG_RW | CTLFLAG_LOCKED,
2183 &timer_deadline_tracking_bin_1, "");
2184SYSCTL_QUAD(_kern_timer, OID_AUTO, deadline_tracking_bin_2,
2185 CTLFLAG_RW | CTLFLAG_LOCKED,
2186 &timer_deadline_tracking_bin_2, "");
2187
2188SYSCTL_DECL(_kern_timer_longterm);
2189SYSCTL_NODE(_kern_timer, OID_AUTO, longterm, CTLFLAG_RW | CTLFLAG_LOCKED, 0, "longterm");
2190
fe8ab488 2191
39236c6e
A		 2192/* Must match definition in osfmk/kern/timer_call.c */
2193enum {
2194 THRESHOLD, QCOUNT,
2195 ENQUEUES, DEQUEUES, ESCALATES, SCANS, PREEMPTS,
5ba3f43e 2196 LATENCY, LATENCY_MIN, LATENCY_MAX, SCAN_LIMIT, PAUSES
39236c6e
A		 2197};
2198extern uint64_t timer_sysctl_get(int);
2199extern int timer_sysctl_set(int, uint64_t);
2200
2201STATIC int
2202sysctl_timer
2203(__unused struct sysctl_oid *oidp, __unused void *arg1, __unused int arg2, struct sysctl_req *req)
2204{
2205 int oid = (int)arg1;
2206 uint64_t value = timer_sysctl_get(oid);
2207 uint64_t new_value;
2208 int error;
2209 int changed;
2210
2211 error = sysctl_io_number(req, value, sizeof(value), &new_value, &changed);
2212 if (changed)
2213 error = timer_sysctl_set(oid, new_value);
2214
2215 return error;
2216}
2217
2218SYSCTL_PROC(_kern_timer_longterm, OID_AUTO, threshold,
2219 CTLTYPE_QUAD | CTLFLAG_RW | CTLFLAG_LOCKED,
2220 (void *) THRESHOLD, 0, sysctl_timer, "Q", "");
5ba3f43e
A		 2221SYSCTL_PROC(_kern_timer_longterm, OID_AUTO, scan_limit,
2222 CTLTYPE_QUAD | CTLFLAG_RW | CTLFLAG_LOCKED,
2223 (void *) SCAN_LIMIT, 0, sysctl_timer, "Q", "");
39236c6e
A		 2224SYSCTL_PROC(_kern_timer_longterm, OID_AUTO, qlen,
2225 CTLTYPE_QUAD | CTLFLAG_RD | CTLFLAG_LOCKED,
2226 (void *) QCOUNT, 0, sysctl_timer, "Q", "");
5ba3f43e 2227#if DEBUG
39236c6e
A		 2228SYSCTL_PROC(_kern_timer_longterm, OID_AUTO, enqueues,
2229 CTLTYPE_QUAD | CTLFLAG_RD | CTLFLAG_LOCKED,
2230 (void *) ENQUEUES, 0, sysctl_timer, "Q", "");
2231SYSCTL_PROC(_kern_timer_longterm, OID_AUTO, dequeues,
2232 CTLTYPE_QUAD | CTLFLAG_RD | CTLFLAG_LOCKED,
2233 (void *) DEQUEUES, 0, sysctl_timer, "Q", "");
2234SYSCTL_PROC(_kern_timer_longterm, OID_AUTO, escalates,
2235 CTLTYPE_QUAD | CTLFLAG_RD | CTLFLAG_LOCKED,
2236 (void *) ESCALATES, 0, sysctl_timer, "Q", "");
2237SYSCTL_PROC(_kern_timer_longterm, OID_AUTO, scans,
2238 CTLTYPE_QUAD | CTLFLAG_RD | CTLFLAG_LOCKED,
2239 (void *) SCANS, 0, sysctl_timer, "Q", "");
2240SYSCTL_PROC(_kern_timer_longterm, OID_AUTO, preempts,
2241 CTLTYPE_QUAD | CTLFLAG_RD | CTLFLAG_LOCKED,
2242 (void *) PREEMPTS, 0, sysctl_timer, "Q", "");
2243SYSCTL_PROC(_kern_timer_longterm, OID_AUTO, latency,
2244 CTLTYPE_QUAD | CTLFLAG_RD | CTLFLAG_LOCKED,
2245 (void *) LATENCY, 0, sysctl_timer, "Q", "");
2246SYSCTL_PROC(_kern_timer_longterm, OID_AUTO, latency_min,
2247 CTLTYPE_QUAD | CTLFLAG_RD | CTLFLAG_LOCKED,
2248 (void *) LATENCY_MIN, 0, sysctl_timer, "Q", "");
2249SYSCTL_PROC(_kern_timer_longterm, OID_AUTO, latency_max,
2250 CTLTYPE_QUAD | CTLFLAG_RD | CTLFLAG_LOCKED,
2251 (void *) LATENCY_MAX, 0, sysctl_timer, "Q", "");
5ba3f43e
A		 2252SYSCTL_PROC(_kern_timer_longterm, OID_AUTO, scan_pauses,
2253 CTLTYPE_QUAD | CTLFLAG_RD | CTLFLAG_LOCKED,
2254 (void *) PAUSES, 0, sysctl_timer, "Q", "");
39236c6e
A		 2255#endif /* DEBUG */
2256
6d2010ae 2257STATIC int
2d21ac55
A		 2258sysctl_usrstack
2259(__unused struct sysctl_oid *oidp, __unused void *arg1, __unused int arg2, struct sysctl_req *req)
2260{
2261 return sysctl_io_number(req, (int)req->p->user_stack, sizeof(int), NULL, NULL);
2262}
2263
b0d623f7 2264SYSCTL_PROC(_kern, KERN_USRSTACK32, usrstack,
6d2010ae 2265 CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_LOCKED,
2d21ac55
A		 2266 0, 0, sysctl_usrstack, "I", "");
2267
6d2010ae 2268STATIC int
2d21ac55
A		 2269sysctl_usrstack64
2270(__unused struct sysctl_oid *oidp, __unused void *arg1, __unused int arg2, struct sysctl_req *req)
2271{
2272 return sysctl_io_number(req, req->p->user_stack, sizeof(req->p->user_stack), NULL, NULL);
2273}
2274
2275SYSCTL_PROC(_kern, KERN_USRSTACK64, usrstack64,
6d2010ae 2276 CTLTYPE_QUAD | CTLFLAG_RD | CTLFLAG_LOCKED,
2d21ac55
A		 2277 0, 0, sysctl_usrstack64, "Q", "");
2278
39037602
A		 2279#if CONFIG_COREDUMP
2280
2d21ac55 2281SYSCTL_STRING(_kern, KERN_COREFILE, corefile,
6d2010ae 2282 CTLFLAG_RW | CTLFLAG_KERN | CTLFLAG_LOCKED,
2d21ac55
A		 2283 corefilename, sizeof(corefilename), "");
2284
6d2010ae 2285STATIC int
2d21ac55
A		 2286sysctl_coredump
2287(__unused struct sysctl_oid *oidp, __unused void *arg1, __unused int arg2, struct sysctl_req *req)
2288{
593a1d5f 2289#ifdef SECURE_KERNEL
fe8ab488 2290 (void)req;
593a1d5f 2291 return (ENOTSUP);
fe8ab488 2292#else
2d21ac55
A		 2293 int new_value, changed;
2294 int error = sysctl_io_number(req, do_coredump, sizeof(int), &new_value, &changed);
2295 if (changed) {
2296 if ((new_value == 0) || (new_value == 1))
2297 do_coredump = new_value;
2298 else
2299 error = EINVAL;
2300 }
2301 return(error);
fe8ab488 2302#endif
2d21ac55
A		 2303}
2304
2305SYSCTL_PROC(_kern, KERN_COREDUMP, coredump,
6d2010ae 2306 CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_LOCKED,
2d21ac55
A		 2307 0, 0, sysctl_coredump, "I", "");
2308
6d2010ae 2309STATIC int
2d21ac55
A		 2310sysctl_suid_coredump
2311(__unused struct sysctl_oid *oidp, __unused void *arg1, __unused int arg2, struct sysctl_req *req)
2312{
593a1d5f 2313#ifdef SECURE_KERNEL
fe8ab488 2314 (void)req;
593a1d5f 2315 return (ENOTSUP);
fe8ab488 2316#else
2d21ac55
A		 2317 int new_value, changed;
2318 int error = sysctl_io_number(req, sugid_coredump, sizeof(int), &new_value, &changed);
2319 if (changed) {
2320 if ((new_value == 0) || (new_value == 1))
2321 sugid_coredump = new_value;
55e303ae
A		 2322 else
2323 error = EINVAL;
2324 }
2d21ac55 2325 return(error);
fe8ab488 2326#endif
2d21ac55
A		 2327}
2328
2329SYSCTL_PROC(_kern, KERN_SUGID_COREDUMP, sugid_coredump,
6d2010ae 2330 CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_LOCKED,
2d21ac55
A		 2331 0, 0, sysctl_suid_coredump, "I", "");
2332
39037602
A		 2333#endif /* CONFIG_COREDUMP */
2334
6d2010ae 2335STATIC int
2d21ac55
A		 2336sysctl_delayterm
2337(__unused struct sysctl_oid *oidp, __unused void *arg1, __unused int arg2, struct sysctl_req *req)
2338{
2339 struct proc *p = req->p;
2340 int new_value, changed;
2341 int error = sysctl_io_number(req, (req->p->p_lflag & P_LDELAYTERM)? 1: 0, sizeof(int), &new_value, &changed);
2342 if (changed) {
2343 proc_lock(p);
2344 if (new_value)
2345 req->p->p_lflag |= P_LDELAYTERM;
2346 else
2347 req->p->p_lflag &= ~P_LDELAYTERM;
2348 proc_unlock(p);
2349 }
2350 return(error);
2351}
2352
2353SYSCTL_PROC(_kern, KERN_PROCDELAYTERM, delayterm,
6d2010ae 2354 CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_LOCKED,
2d21ac55
A		 2355 0, 0, sysctl_delayterm, "I", "");
2356
55e303ae 2357
6d2010ae 2358STATIC int
2d21ac55
A		 2359sysctl_rage_vnode
2360(__unused struct sysctl_oid *oidp, __unused void *arg1, __unused int arg2, struct sysctl_req *req)
55e303ae 2361{
2d21ac55
A		 2362 struct proc *p = req->p;
2363 struct uthread *ut;
2364 int new_value, old_value, changed;
2365 int error;
55e303ae 2366
2d21ac55
A		 2367 ut = get_bsdthread_info(current_thread());
2368
2369 if (ut->uu_flag & UT_RAGE_VNODES)
2370 old_value = KERN_RAGE_THREAD;
2371 else if (p->p_lflag & P_LRAGE_VNODES)
2372 old_value = KERN_RAGE_PROC;
2373 else
2374 old_value = 0;
2375
2376 error = sysctl_io_number(req, old_value, sizeof(int), &new_value, &changed);
2377
2378 if (error == 0) {
2379 switch (new_value) {
2380 case KERN_RAGE_PROC:
2381 proc_lock(p);
2382 p->p_lflag |= P_LRAGE_VNODES;
2383 proc_unlock(p);
2384 break;
2385 case KERN_UNRAGE_PROC:
2386 proc_lock(p);
2387 p->p_lflag &= ~P_LRAGE_VNODES;
2388 proc_unlock(p);
2389 break;
2390
2391 case KERN_RAGE_THREAD:
2392 ut->uu_flag |= UT_RAGE_VNODES;
2393 break;
2394 case KERN_UNRAGE_THREAD:
2395 ut = get_bsdthread_info(current_thread());
2396 ut->uu_flag &= ~UT_RAGE_VNODES;
2397 break;
e5568f75 2398 }
2d21ac55
A		 2399 }
2400 return(error);
2401}
2402
2403SYSCTL_PROC(_kern, KERN_RAGEVNODE, rage_vnode,
6d2010ae 2404 CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_ANYBODY | CTLFLAG_LOCKED,
2d21ac55
A		 2405 0, 0, sysctl_rage_vnode, "I", "");
2406
316670eb
A		 2407/* XXX move this interface into libproc and remove this sysctl */
2408STATIC int
2409sysctl_setthread_cpupercent
2410(__unused struct sysctl_oid *oidp, __unused void *arg1, __unused int arg2, struct sysctl_req *req)
2411{
2412 int new_value, old_value;
2413 int error = 0;
2414 kern_return_t kret = KERN_SUCCESS;
2415 uint8_t percent = 0;
2416 int ms_refill = 0;
2417
39236c6e
A		 2418 if (!req->newptr)
2419 return (0);
2420
316670eb
A		 2421 old_value = 0;
2422
2423 if ((error = sysctl_io_number(req, old_value, sizeof(old_value), &new_value, NULL)) != 0)
2424 return (error);
2425
2426 percent = new_value & 0xff; /* low 8 bytes for perent */
2427 ms_refill = (new_value >> 8) & 0xffffff; /* upper 24bytes represent ms refill value */
2428 if (percent > 100)
2429 return (EINVAL);
2430
2431 /*
2432 * If the caller is specifying a percentage of 0, this will unset the CPU limit, if present.
2433 */
39236c6e 2434 if ((kret = thread_set_cpulimit(THREAD_CPULIMIT_BLOCK, percent, ms_refill * (int)NSEC_PER_MSEC)) != 0)
316670eb
A		 2435 return (EIO);
2436
2437 return (0);
2438}
2439
2440SYSCTL_PROC(_kern, OID_AUTO, setthread_cpupercent,
39236c6e 2441 CTLTYPE_INT | CTLFLAG_WR | CTLFLAG_ANYBODY,
316670eb
A		 2442 0, 0, sysctl_setthread_cpupercent, "I", "set thread cpu percentage limit");
2443
2d21ac55 2444
6d2010ae 2445STATIC int
2d21ac55
A		 2446sysctl_kern_check_openevt
2447(__unused struct sysctl_oid *oidp, __unused void *arg1, __unused int arg2, struct sysctl_req *req)
2448{
2449 struct proc *p = req->p;
2450 int new_value, old_value, changed;
2451 int error;
2452
2453 if (p->p_flag & P_CHECKOPENEVT) {
2454 old_value = KERN_OPENEVT_PROC;
2455 } else {
2456 old_value = 0;
2457 }
2458
2459 error = sysctl_io_number(req, old_value, sizeof(int), &new_value, &changed);
2460
2461 if (error == 0) {
2462 switch (new_value) {
2463 case KERN_OPENEVT_PROC:
b0d623f7 2464 OSBitOrAtomic(P_CHECKOPENEVT, &p->p_flag);
2d21ac55
A		 2465 break;
2466
2467 case KERN_UNOPENEVT_PROC:
b0d623f7 2468 OSBitAndAtomic(~((uint32_t)P_CHECKOPENEVT), &p->p_flag);
2d21ac55
A		 2469 break;
2470
2471 default:
55e303ae 2472 error = EINVAL;
2d21ac55 2473 }
55e303ae 2474 }
2d21ac55
A		 2475 return(error);
2476}
2477
6d2010ae 2478SYSCTL_PROC(_kern, KERN_CHECKOPENEVT, check_openevt, CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_ANYBODY | CTLFLAG_LOCKED,
2d21ac55
A		 2479 0, 0, sysctl_kern_check_openevt, "I", "set the per-process check-open-evt flag");
2480
2481
2482
6d2010ae 2483STATIC int
2d21ac55
A		 2484sysctl_nx
2485(__unused struct sysctl_oid *oidp, __unused void *arg1, __unused int arg2, struct sysctl_req *req)
2486{
4a3eedf9 2487#ifdef SECURE_KERNEL
fe8ab488 2488 (void)req;
4a3eedf9 2489 return ENOTSUP;
fe8ab488 2490#else
2d21ac55
A		 2491 int new_value, changed;
2492 int error;
2493
2494 error = sysctl_io_number(req, nx_enabled, sizeof(nx_enabled), &new_value, &changed);
4a3eedf9
A		 2495 if (error)
2496 return error;
2d21ac55 2497
4a3eedf9 2498 if (changed) {
b0d623f7 2499#if defined(__i386__) || defined(__x86_64__)
2d21ac55
A		 2500 /*
2501 * Only allow setting if NX is supported on the chip
2502 */
2503 if (!(cpuid_extfeatures() & CPUID_EXTFEATURE_XD))
4a3eedf9 2504 return ENOTSUP;
2d21ac55 2505#endif
4a3eedf9
A		 2506 nx_enabled = new_value;
2507 }
2d21ac55 2508 return(error);
fe8ab488 2509#endif /* SECURE_KERNEL */
2d21ac55
A		 2510}
2511
2512
2513
2514SYSCTL_PROC(_kern, KERN_NX_PROTECTION, nx,
6d2010ae 2515 CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_KERN | CTLFLAG_LOCKED,
2d21ac55
A		 2516 0, 0, sysctl_nx, "I", "");
2517
6d2010ae 2518STATIC int
2d21ac55
A		 2519sysctl_loadavg
2520(__unused struct sysctl_oid *oidp, __unused void *arg1, __unused int arg2, struct sysctl_req *req)
2521{
2522 if (proc_is64bit(req->p)) {
5ba3f43e 2523 struct user64_loadavg loadinfo64 = {};
b0d623f7 2524 fill_loadavg64(&averunnable, &loadinfo64);
2d21ac55
A		 2525 return sysctl_io_opaque(req, &loadinfo64, sizeof(loadinfo64), NULL);
2526 } else {
5ba3f43e 2527 struct user32_loadavg loadinfo32 = {};
b0d623f7
A		 2528 fill_loadavg32(&averunnable, &loadinfo32);
2529 return sysctl_io_opaque(req, &loadinfo32, sizeof(loadinfo32), NULL);
2d21ac55
A		 2530 }
2531}
2532
2533SYSCTL_PROC(_vm, VM_LOADAVG, loadavg,
6d2010ae 2534 CTLTYPE_STRUCT | CTLFLAG_RD | CTLFLAG_LOCKED,
2d21ac55
A		 2535 0, 0, sysctl_loadavg, "S,loadavg", "");
2536
6d2010ae
A		 2537/*
2538 * Note: Thread safe; vm_map_lock protects in vm_toggle_entry_reuse()
2539 */
2540STATIC int
2541sysctl_vm_toggle_address_reuse(__unused struct sysctl_oid *oidp, __unused void *arg1,
2542 __unused int arg2, struct sysctl_req *req)
2543{
2544 int old_value=0, new_value=0, error=0;
2545
2546 if(vm_toggle_entry_reuse( VM_TOGGLE_GETVALUE, &old_value ))
2547 return(error);
2548 error = sysctl_io_number(req, old_value, sizeof(int), &new_value, NULL);
2549 if (!error) {
2550 return (vm_toggle_entry_reuse(new_value, NULL));
2551 }
2552 return(error);
2553}
2554
2555SYSCTL_PROC(_debug, OID_AUTO, toggle_address_reuse, CTLFLAG_ANYBODY | CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_LOCKED, 0, 0, sysctl_vm_toggle_address_reuse,"I","");
2556
39037602 2557
6d2010ae 2558STATIC int
2d21ac55
A		 2559sysctl_swapusage
2560(__unused struct sysctl_oid *oidp, __unused void *arg1, __unused int arg2, struct sysctl_req *req)
2561{
2562 int error;
2563 uint64_t swap_total;
2564 uint64_t swap_avail;
b0d623f7 2565 vm_size_t swap_pagesize;
2d21ac55 2566 boolean_t swap_encrypted;
5ba3f43e 2567 struct xsw_usage xsu = {};
2d21ac55
A		 2568
2569 error = macx_swapinfo(&swap_total,
2570 &swap_avail,
2571 &swap_pagesize,
2572 &swap_encrypted);
2573 if (error)
2574 return error;
2575
2576 xsu.xsu_total = swap_total;
2577 xsu.xsu_avail = swap_avail;
2578 xsu.xsu_used = swap_total - swap_avail;
2579 xsu.xsu_pagesize = swap_pagesize;
2580 xsu.xsu_encrypted = swap_encrypted;
2581 return sysctl_io_opaque(req, &xsu, sizeof(xsu), NULL);
2582}
2583
2584
2585
2586SYSCTL_PROC(_vm, VM_SWAPUSAGE, swapusage,
6d2010ae 2587 CTLTYPE_STRUCT | CTLFLAG_RD | CTLFLAG_LOCKED,
2d21ac55
A		 2588 0, 0, sysctl_swapusage, "S,xsw_usage", "");
2589
6d2010ae
A		 2590#if CONFIG_FREEZE
2591extern void vm_page_reactivate_all_throttled(void);
2592
2593static int
2594sysctl_freeze_enabled SYSCTL_HANDLER_ARGS
2595{
2596#pragma unused(arg1, arg2)
316670eb 2597 int error, val = memorystatus_freeze_enabled ? 1 : 0;
6d2010ae
A		 2598 boolean_t disabled;
2599
2600 error = sysctl_handle_int(oidp, &val, 0, req);
2601 if (error || !req->newptr)
2602 return (error);
39037602
A		 2603
2604 if (VM_CONFIG_COMPRESSOR_IS_ACTIVE) {
39236c6e 2605 //assert(req->newptr);
fe8ab488 2606 printf("Failed attempt to set vm.freeze_enabled sysctl\n");
39236c6e
A		 2607 return EINVAL;
2608 }
2609
6d2010ae
A		 2610 /*
2611 * If freeze is being disabled, we need to move dirty pages out from the throttle to the active queue.
2612 */
316670eb 2613 disabled = (!val && memorystatus_freeze_enabled);
6d2010ae 2614
316670eb 2615 memorystatus_freeze_enabled = val ? TRUE : FALSE;
6d2010ae
A		 2616
2617 if (disabled) {
2618 vm_page_reactivate_all_throttled();
2619 }
2620
2621 return (0);
2622}
2623
316670eb 2624SYSCTL_PROC(_vm, OID_AUTO, freeze_enabled, CTLTYPE_INT|CTLFLAG_RW, &memorystatus_freeze_enabled, 0, sysctl_freeze_enabled, "I", "");
6d2010ae 2625#endif /* CONFIG_FREEZE */
2d21ac55
A		 2626
2627/* this kernel does NOT implement shared_region_make_private_np() */
2628SYSCTL_INT(_kern, KERN_SHREG_PRIVATIZABLE, shreg_private,
6d2010ae 2629 CTLFLAG_RD | CTLFLAG_LOCKED,
b0d623f7 2630 (int *)NULL, 0, "");
0c530ab8 2631
6d2010ae 2632STATIC int
0c530ab8 2633fetch_process_cputype(
2d21ac55 2634 proc_t cur_proc,
0c530ab8
A		 2635 int *name,
2636 u_int namelen,
2637 cpu_type_t *cputype)
2638{
2d21ac55
A		 2639 proc_t p = PROC_NULL;
2640 int refheld = 0;
0c530ab8 2641 cpu_type_t ret = 0;
2d21ac55 2642 int error = 0;
0c530ab8
A		 2643
2644 if (namelen == 0)
2645 p = cur_proc;
2646 else if (namelen == 1) {
2d21ac55 2647 p = proc_find(name[0]);
0c530ab8
A		 2648 if (p == NULL)
2649 return (EINVAL);
2d21ac55 2650 refheld = 1;
0c530ab8 2651 } else {
2d21ac55
A		 2652 error = EINVAL;
2653 goto out;
0c530ab8
A		 2654 }
2655
fe8ab488
A		 2656 ret = cpu_type() & ~CPU_ARCH_MASK;
2657 if (IS_64BIT_PROCESS(p))
2658 ret |= CPU_ARCH_ABI64;
2659
0c530ab8
A		 2660 *cputype = ret;
2661
2d21ac55
A		 2662 if (refheld != 0)
2663 proc_rele(p);
2664out:
2665 return (error);
0c530ab8
A		 2666}
2667
6d2010ae 2668STATIC int
2d21ac55
A		 2669sysctl_sysctl_native(__unused struct sysctl_oid *oidp, void *arg1, int arg2,
2670 struct sysctl_req *req)
0c530ab8
A		 2671{
2672 int error;
2673 cpu_type_t proc_cputype = 0;
2674 if ((error = fetch_process_cputype(req->p, (int *)arg1, arg2, &proc_cputype)) != 0)
2675 return error;
2676 int res = 1;
2677 if ((proc_cputype & ~CPU_ARCH_MASK) != (cpu_type() & ~CPU_ARCH_MASK))
2678 res = 0;
2679 return SYSCTL_OUT(req, &res, sizeof(res));
2680}
6d2010ae 2681SYSCTL_PROC(_sysctl, OID_AUTO, proc_native, CTLTYPE_NODE|CTLFLAG_RD | CTLFLAG_LOCKED, 0, 0, sysctl_sysctl_native ,"I","proc_native");
0c530ab8 2682
6d2010ae 2683STATIC int
2d21ac55
A		 2684sysctl_sysctl_cputype(__unused struct sysctl_oid *oidp, void *arg1, int arg2,
2685 struct sysctl_req *req)
0c530ab8
A		 2686{
2687 int error;
2688 cpu_type_t proc_cputype = 0;
2689 if ((error = fetch_process_cputype(req->p, (int *)arg1, arg2, &proc_cputype)) != 0)
2690 return error;
2691 return SYSCTL_OUT(req, &proc_cputype, sizeof(proc_cputype));
2692}
6d2010ae 2693SYSCTL_PROC(_sysctl, OID_AUTO, proc_cputype, CTLTYPE_NODE|CTLFLAG_RD | CTLFLAG_LOCKED, 0, 0, sysctl_sysctl_cputype ,"I","proc_cputype");
0c530ab8 2694
6d2010ae 2695STATIC int
2d21ac55
A		 2696sysctl_safeboot
2697(__unused struct sysctl_oid *oidp, __unused void *arg1, __unused int arg2, struct sysctl_req *req)
2698{
2699 return sysctl_io_number(req, boothowto & RB_SAFEBOOT ? 1 : 0, sizeof(int), NULL, NULL);
2700}
2701
2702SYSCTL_PROC(_kern, KERN_SAFEBOOT, safeboot,
6d2010ae 2703 CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_LOCKED,
2d21ac55
A		 2704 0, 0, sysctl_safeboot, "I", "");
2705
6d2010ae 2706STATIC int
2d21ac55
A		 2707sysctl_singleuser
2708(__unused struct sysctl_oid *oidp, __unused void *arg1, __unused int arg2, struct sysctl_req *req)
2709{
2710 return sysctl_io_number(req, boothowto & RB_SINGLE ? 1 : 0, sizeof(int), NULL, NULL);
2711}
2712
2713SYSCTL_PROC(_kern, OID_AUTO, singleuser,
6d2010ae 2714 CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_LOCKED,
2d21ac55
A		 2715 0, 0, sysctl_singleuser, "I", "");
2716
3e170ce0
A		 2717STATIC int sysctl_minimalboot
2718(__unused struct sysctl_oid *oidp, __unused void *arg1, __unused int arg2, struct sysctl_req *req)
2719{
2720 return sysctl_io_number(req, minimalboot, sizeof(int), NULL, NULL);
2721}
2722
2723SYSCTL_PROC(_kern, OID_AUTO, minimalboot,
2724 CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_LOCKED,
2725 0, 0, sysctl_minimalboot, "I", "");
2726
2d21ac55
A		 2727/*
2728 * Controls for debugging affinity sets - see osfmk/kern/affinity.c
2729 */
2730extern boolean_t affinity_sets_enabled;
2731extern int affinity_sets_mapping;
2732
2733SYSCTL_INT (_kern, OID_AUTO, affinity_sets_enabled,
6d2010ae 2734 CTLFLAG_RW | CTLFLAG_LOCKED, (int *) &affinity_sets_enabled, 0, "hinting enabled");
2d21ac55 2735SYSCTL_INT (_kern, OID_AUTO, affinity_sets_mapping,
6d2010ae 2736 CTLFLAG_RW | CTLFLAG_LOCKED, &affinity_sets_mapping, 0, "mapping policy");
2d21ac55 2737
316670eb
A		 2738/*
2739 * Boolean indicating if KASLR is active.
2740 */
2741STATIC int
2742sysctl_slide
2743(__unused struct sysctl_oid *oidp, __unused void *arg1, __unused int arg2, struct sysctl_req *req)
2744{
2745 uint32_t slide;
2746
2747 slide = vm_kernel_slide ? 1 : 0;
2748
2749 return sysctl_io_number( req, slide, sizeof(int), NULL, NULL);
2750}
2751
2752SYSCTL_PROC(_kern, OID_AUTO, slide,
2753 CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_LOCKED,
2754 0, 0, sysctl_slide, "I", "");
2755
2d21ac55
A		 2756/*
2757 * Limit on total memory users can wire.
2758 *
2759 * vm_global_user_wire_limit - system wide limit on wired memory from all processes combined.
2760 *
2761 * vm_user_wire_limit - per address space limit on wired memory. This puts a cap on the process's rlimit value.
2762 *
2763 * These values are initialized to reasonable defaults at boot time based on the available physical memory in
2764 * kmem_init().
2765 *
2766 * All values are in bytes.
2767 */
2768
b0d623f7 2769vm_map_size_t vm_global_no_user_wire_amount;
2d21ac55
A		 2770vm_map_size_t vm_global_user_wire_limit;
2771vm_map_size_t vm_user_wire_limit;
2772
b0d623f7
A		 2773/*
2774 * There needs to be a more automatic/elegant way to do this
2775 */
5ba3f43e
A		 2776#if defined(__ARM__)
2777SYSCTL_INT(_vm, OID_AUTO, global_no_user_wire_amount, CTLFLAG_RW | CTLFLAG_LOCKED, &vm_global_no_user_wire_amount, 0, "");
2778SYSCTL_INT(_vm, OID_AUTO, global_user_wire_limit, CTLFLAG_RW | CTLFLAG_LOCKED, &vm_global_user_wire_limit, 0, "");
2779SYSCTL_INT(_vm, OID_AUTO, user_wire_limit, CTLFLAG_RW | CTLFLAG_LOCKED, &vm_user_wire_limit, 0, "");
2780#else
6d2010ae
A		 2781SYSCTL_QUAD(_vm, OID_AUTO, global_no_user_wire_amount, CTLFLAG_RW | CTLFLAG_LOCKED, &vm_global_no_user_wire_amount, "");
2782SYSCTL_QUAD(_vm, OID_AUTO, global_user_wire_limit, CTLFLAG_RW | CTLFLAG_LOCKED, &vm_global_user_wire_limit, "");
2783SYSCTL_QUAD(_vm, OID_AUTO, user_wire_limit, CTLFLAG_RW | CTLFLAG_LOCKED, &vm_user_wire_limit, "");
5ba3f43e 2784#endif
b0d623f7 2785
e2d2fc5c
A		 2786extern int vm_map_copy_overwrite_aligned_src_not_internal;
2787extern int vm_map_copy_overwrite_aligned_src_not_symmetric;
2788extern int vm_map_copy_overwrite_aligned_src_large;
2789SYSCTL_INT(_vm, OID_AUTO, vm_copy_src_not_internal, CTLFLAG_RD | CTLFLAG_LOCKED, &vm_map_copy_overwrite_aligned_src_not_internal, 0, "");
2790SYSCTL_INT(_vm, OID_AUTO, vm_copy_src_not_symmetric, CTLFLAG_RD | CTLFLAG_LOCKED, &vm_map_copy_overwrite_aligned_src_not_symmetric, 0, "");
2791SYSCTL_INT(_vm, OID_AUTO, vm_copy_src_large, CTLFLAG_RD | CTLFLAG_LOCKED, &vm_map_copy_overwrite_aligned_src_large, 0, "");
b0d623f7
A		 2792
2793
39236c6e
A		 2794extern uint32_t vm_page_external_count;
2795extern uint32_t vm_page_filecache_min;
2796
2797SYSCTL_INT(_vm, OID_AUTO, vm_page_external_count, CTLFLAG_RD | CTLFLAG_LOCKED, &vm_page_external_count, 0, "");
2798SYSCTL_INT(_vm, OID_AUTO, vm_page_filecache_min, CTLFLAG_RW | CTLFLAG_LOCKED, &vm_page_filecache_min, 0, "");
2799
2800extern int vm_compressor_mode;
04b8595b 2801extern int vm_compressor_is_active;
3e170ce0
A		 2802extern int vm_compressor_available;
2803extern uint32_t vm_ripe_target_age;
39236c6e
A		 2804extern uint32_t swapout_target_age;
2805extern int64_t compressor_bytes_used;
3e170ce0
A		 2806extern int64_t c_segment_input_bytes;
2807extern int64_t c_segment_compressed_bytes;
39236c6e
A		 2808extern uint32_t compressor_eval_period_in_msecs;
2809extern uint32_t compressor_sample_min_in_msecs;
2810extern uint32_t compressor_sample_max_in_msecs;
2811extern uint32_t compressor_thrashing_threshold_per_10msecs;
2812extern uint32_t compressor_thrashing_min_per_10msecs;
2813extern uint32_t vm_compressor_minorcompact_threshold_divisor;
2814extern uint32_t vm_compressor_majorcompact_threshold_divisor;
2815extern uint32_t vm_compressor_unthrottle_threshold_divisor;
2816extern uint32_t vm_compressor_catchup_threshold_divisor;
39037602 2817extern uint32_t vm_compressor_time_thread;
5ba3f43e
A		 2818#if DEVELOPMENT || DEBUG
2819extern vmct_stats_t vmct_stats;
2820#endif
39236c6e 2821
3e170ce0
A		 2822SYSCTL_QUAD(_vm, OID_AUTO, compressor_input_bytes, CTLFLAG_RD | CTLFLAG_LOCKED, &c_segment_input_bytes, "");
2823SYSCTL_QUAD(_vm, OID_AUTO, compressor_compressed_bytes, CTLFLAG_RD | CTLFLAG_LOCKED, &c_segment_compressed_bytes, "");
2824SYSCTL_QUAD(_vm, OID_AUTO, compressor_bytes_used, CTLFLAG_RD | CTLFLAG_LOCKED, &compressor_bytes_used, "");
2825
39236c6e 2826SYSCTL_INT(_vm, OID_AUTO, compressor_mode, CTLFLAG_RD | CTLFLAG_LOCKED, &vm_compressor_mode, 0, "");
04b8595b 2827SYSCTL_INT(_vm, OID_AUTO, compressor_is_active, CTLFLAG_RD | CTLFLAG_LOCKED, &vm_compressor_is_active, 0, "");
39236c6e 2828SYSCTL_INT(_vm, OID_AUTO, compressor_swapout_target_age, CTLFLAG_RD | CTLFLAG_LOCKED, &swapout_target_age, 0, "");
3e170ce0
A		 2829SYSCTL_INT(_vm, OID_AUTO, compressor_available, CTLFLAG_RD | CTLFLAG_LOCKED, &vm_compressor_available, 0, "");
2830
2831SYSCTL_INT(_vm, OID_AUTO, vm_ripe_target_age_in_secs, CTLFLAG_RW | CTLFLAG_LOCKED, &vm_ripe_target_age, 0, "");
39236c6e
A		 2832
2833SYSCTL_INT(_vm, OID_AUTO, compressor_eval_period_in_msecs, CTLFLAG_RW | CTLFLAG_LOCKED, &compressor_eval_period_in_msecs, 0, "");
2834SYSCTL_INT(_vm, OID_AUTO, compressor_sample_min_in_msecs, CTLFLAG_RW | CTLFLAG_LOCKED, &compressor_sample_min_in_msecs, 0, "");
2835SYSCTL_INT(_vm, OID_AUTO, compressor_sample_max_in_msecs, CTLFLAG_RW | CTLFLAG_LOCKED, &compressor_sample_max_in_msecs, 0, "");
2836SYSCTL_INT(_vm, OID_AUTO, compressor_thrashing_threshold_per_10msecs, CTLFLAG_RW | CTLFLAG_LOCKED, &compressor_thrashing_threshold_per_10msecs, 0, "");
2837SYSCTL_INT(_vm, OID_AUTO, compressor_thrashing_min_per_10msecs, CTLFLAG_RW | CTLFLAG_LOCKED, &compressor_thrashing_min_per_10msecs, 0, "");
2838SYSCTL_INT(_vm, OID_AUTO, compressor_minorcompact_threshold_divisor, CTLFLAG_RW | CTLFLAG_LOCKED, &vm_compressor_minorcompact_threshold_divisor, 0, "");
2839SYSCTL_INT(_vm, OID_AUTO, compressor_majorcompact_threshold_divisor, CTLFLAG_RW | CTLFLAG_LOCKED, &vm_compressor_majorcompact_threshold_divisor, 0, "");
2840SYSCTL_INT(_vm, OID_AUTO, compressor_unthrottle_threshold_divisor, CTLFLAG_RW | CTLFLAG_LOCKED, &vm_compressor_unthrottle_threshold_divisor, 0, "");
2841SYSCTL_INT(_vm, OID_AUTO, compressor_catchup_threshold_divisor, CTLFLAG_RW | CTLFLAG_LOCKED, &vm_compressor_catchup_threshold_divisor, 0, "");
2842
fe8ab488
A		 2843SYSCTL_STRING(_vm, OID_AUTO, swapfileprefix, CTLFLAG_RW | CTLFLAG_KERN | CTLFLAG_LOCKED, swapfilename, sizeof(swapfilename) - SWAPFILENAME_INDEX_LEN, "");
2844
39037602 2845SYSCTL_INT(_vm, OID_AUTO, compressor_timing_enabled, CTLFLAG_RW | CTLFLAG_LOCKED, &vm_compressor_time_thread, 0, "");
5ba3f43e
A		 2846
2847#if DEVELOPMENT || DEBUG
2848SYSCTL_QUAD(_vm, OID_AUTO, compressor_thread_runtime0, CTLFLAG_RD | CTLFLAG_LOCKED, &vmct_stats.vmct_runtimes[0], "");
2849SYSCTL_QUAD(_vm, OID_AUTO, compressor_thread_runtime1, CTLFLAG_RD | CTLFLAG_LOCKED, &vmct_stats.vmct_runtimes[1], "");
2850
2851SYSCTL_QUAD(_vm, OID_AUTO, compressor_threads_total, CTLFLAG_RD | CTLFLAG_LOCKED, &vmct_stats.vmct_cthreads_total, "");
2852
2853SYSCTL_QUAD(_vm, OID_AUTO, compressor_thread_pages0, CTLFLAG_RD | CTLFLAG_LOCKED, &vmct_stats.vmct_pages[0], "");
2854SYSCTL_QUAD(_vm, OID_AUTO, compressor_thread_pages1, CTLFLAG_RD | CTLFLAG_LOCKED, &vmct_stats.vmct_pages[1], "");
2855
2856SYSCTL_QUAD(_vm, OID_AUTO, compressor_thread_iterations0, CTLFLAG_RD | CTLFLAG_LOCKED, &vmct_stats.vmct_iterations[0], "");
2857SYSCTL_QUAD(_vm, OID_AUTO, compressor_thread_iterations1, CTLFLAG_RD | CTLFLAG_LOCKED, &vmct_stats.vmct_iterations[1], "");
2858
2859SYSCTL_INT(_vm, OID_AUTO, compressor_thread_minpages0, CTLFLAG_RD | CTLFLAG_LOCKED, &vmct_stats.vmct_minpages[0], 0, "");
2860SYSCTL_INT(_vm, OID_AUTO, compressor_thread_minpages1, CTLFLAG_RD | CTLFLAG_LOCKED, &vmct_stats.vmct_minpages[1], 0, "");
2861
2862SYSCTL_INT(_vm, OID_AUTO, compressor_thread_maxpages0, CTLFLAG_RD | CTLFLAG_LOCKED, &vmct_stats.vmct_maxpages[0], 0, "");
2863SYSCTL_INT(_vm, OID_AUTO, compressor_thread_maxpages1, CTLFLAG_RD | CTLFLAG_LOCKED, &vmct_stats.vmct_maxpages[1], 0, "");
2864
2865#endif
39037602
A		 2866
2867SYSCTL_QUAD(_vm, OID_AUTO, lz4_compressions, CTLFLAG_RD | CTLFLAG_LOCKED, &compressor_stats.lz4_compressions, "");
2868SYSCTL_QUAD(_vm, OID_AUTO, lz4_compression_failures, CTLFLAG_RD | CTLFLAG_LOCKED, &compressor_stats.lz4_compression_failures, "");
2869SYSCTL_QUAD(_vm, OID_AUTO, lz4_compressed_bytes, CTLFLAG_RD | CTLFLAG_LOCKED, &compressor_stats.lz4_compressed_bytes, "");
2870SYSCTL_QUAD(_vm, OID_AUTO, lz4_wk_compression_delta, CTLFLAG_RD | CTLFLAG_LOCKED, &compressor_stats.lz4_wk_compression_delta, "");
2871SYSCTL_QUAD(_vm, OID_AUTO, lz4_wk_compression_negative_delta, CTLFLAG_RD | CTLFLAG_LOCKED, &compressor_stats.lz4_wk_compression_negative_delta, "");
2872
2873SYSCTL_QUAD(_vm, OID_AUTO, lz4_decompressions, CTLFLAG_RD | CTLFLAG_LOCKED, &compressor_stats.lz4_decompressions, "");
2874SYSCTL_QUAD(_vm, OID_AUTO, lz4_decompressed_bytes, CTLFLAG_RD | CTLFLAG_LOCKED, &compressor_stats.lz4_decompressed_bytes, "");
2875
2876SYSCTL_QUAD(_vm, OID_AUTO, uc_decompressions, CTLFLAG_RD | CTLFLAG_LOCKED, &compressor_stats.uc_decompressions, "");
2877
2878SYSCTL_QUAD(_vm, OID_AUTO, wk_compressions, CTLFLAG_RD | CTLFLAG_LOCKED, &compressor_stats.wk_compressions, "");
5ba3f43e
A		 2879
2880SYSCTL_QUAD(_vm, OID_AUTO, wk_catime, CTLFLAG_RD | CTLFLAG_LOCKED, &compressor_stats.wk_cabstime, "");
2881
2882SYSCTL_QUAD(_vm, OID_AUTO, wkh_catime, CTLFLAG_RD | CTLFLAG_LOCKED, &compressor_stats.wkh_cabstime, "");
2883SYSCTL_QUAD(_vm, OID_AUTO, wkh_compressions, CTLFLAG_RD | CTLFLAG_LOCKED, &compressor_stats.wkh_compressions, "");
2884
2885SYSCTL_QUAD(_vm, OID_AUTO, wks_catime, CTLFLAG_RD | CTLFLAG_LOCKED, &compressor_stats.wks_cabstime, "");
2886SYSCTL_QUAD(_vm, OID_AUTO, wks_compressions, CTLFLAG_RD | CTLFLAG_LOCKED, &compressor_stats.wks_compressions, "");
2887
39037602
A		 2888SYSCTL_QUAD(_vm, OID_AUTO, wk_compressions_exclusive, CTLFLAG_RD | CTLFLAG_LOCKED, &compressor_stats.wk_compressions_exclusive, "");
2889SYSCTL_QUAD(_vm, OID_AUTO, wk_sv_compressions, CTLFLAG_RD | CTLFLAG_LOCKED, &compressor_stats.wk_sv_compressions, "");
2890SYSCTL_QUAD(_vm, OID_AUTO, wk_mzv_compressions, CTLFLAG_RD | CTLFLAG_LOCKED, &compressor_stats.wk_mzv_compressions, "");
2891SYSCTL_QUAD(_vm, OID_AUTO, wk_compression_failures, CTLFLAG_RD | CTLFLAG_LOCKED, &compressor_stats.wk_compression_failures, "");
2892SYSCTL_QUAD(_vm, OID_AUTO, wk_compressed_bytes_exclusive, CTLFLAG_RD | CTLFLAG_LOCKED, &compressor_stats.wk_compressed_bytes_exclusive, "");
2893SYSCTL_QUAD(_vm, OID_AUTO, wk_compressed_bytes_total, CTLFLAG_RD | CTLFLAG_LOCKED, &compressor_stats.wk_compressed_bytes_total, "");
2894
5ba3f43e
A		 2895SYSCTL_QUAD(_vm, OID_AUTO, wks_compressed_bytes, CTLFLAG_RD | CTLFLAG_LOCKED, &compressor_stats.wks_compressed_bytes, "");
2896SYSCTL_QUAD(_vm, OID_AUTO, wks_compression_failures, CTLFLAG_RD | CTLFLAG_LOCKED, &compressor_stats.wks_compression_failures, "");
2897SYSCTL_QUAD(_vm, OID_AUTO, wks_sv_compressions, CTLFLAG_RD | CTLFLAG_LOCKED, &compressor_stats.wks_sv_compressions, "");
2898
2899
39037602 2900SYSCTL_QUAD(_vm, OID_AUTO, wk_decompressions, CTLFLAG_RD | CTLFLAG_LOCKED, &compressor_stats.wk_decompressions, "");
5ba3f43e
A		 2901
2902SYSCTL_QUAD(_vm, OID_AUTO, wk_datime, CTLFLAG_RD | CTLFLAG_LOCKED, &compressor_stats.wk_dabstime, "");
2903
2904SYSCTL_QUAD(_vm, OID_AUTO, wkh_datime, CTLFLAG_RD | CTLFLAG_LOCKED, &compressor_stats.wkh_dabstime, "");
2905SYSCTL_QUAD(_vm, OID_AUTO, wkh_decompressions, CTLFLAG_RD | CTLFLAG_LOCKED, &compressor_stats.wkh_decompressions, "");
2906
2907SYSCTL_QUAD(_vm, OID_AUTO, wks_datime, CTLFLAG_RD | CTLFLAG_LOCKED, &compressor_stats.wks_dabstime, "");
2908SYSCTL_QUAD(_vm, OID_AUTO, wks_decompressions, CTLFLAG_RD | CTLFLAG_LOCKED, &compressor_stats.wks_decompressions, "");
2909
39037602
A		 2910SYSCTL_QUAD(_vm, OID_AUTO, wk_decompressed_bytes, CTLFLAG_RD | CTLFLAG_LOCKED, &compressor_stats.wk_decompressed_bytes, "");
2911SYSCTL_QUAD(_vm, OID_AUTO, wk_sv_decompressions, CTLFLAG_RD | CTLFLAG_LOCKED, &compressor_stats.wk_sv_decompressions, "");
2912
2913SYSCTL_INT(_vm, OID_AUTO, lz4_threshold, CTLFLAG_RW | CTLFLAG_LOCKED, &vmctune.lz4_threshold, 0, "");
2914SYSCTL_INT(_vm, OID_AUTO, wkdm_reeval_threshold, CTLFLAG_RW | CTLFLAG_LOCKED, &vmctune.wkdm_reeval_threshold, 0, "");
2915SYSCTL_INT(_vm, OID_AUTO, lz4_max_failure_skips, CTLFLAG_RW | CTLFLAG_LOCKED, &vmctune.lz4_max_failure_skips, 0, "");
2916SYSCTL_INT(_vm, OID_AUTO, lz4_max_failure_run_length, CTLFLAG_RW | CTLFLAG_LOCKED, &vmctune.lz4_max_failure_run_length, 0, "");
2917SYSCTL_INT(_vm, OID_AUTO, lz4_max_preselects, CTLFLAG_RW | CTLFLAG_LOCKED, &vmctune.lz4_max_preselects, 0, "");
2918SYSCTL_INT(_vm, OID_AUTO, lz4_run_preselection_threshold, CTLFLAG_RW | CTLFLAG_LOCKED, &vmctune.lz4_run_preselection_threshold, 0, "");
2919SYSCTL_INT(_vm, OID_AUTO, lz4_run_continue_bytes, CTLFLAG_RW | CTLFLAG_LOCKED, &vmctune.lz4_run_continue_bytes, 0, "");
2920SYSCTL_INT(_vm, OID_AUTO, lz4_profitable_bytes, CTLFLAG_RW | CTLFLAG_LOCKED, &vmctune.lz4_profitable_bytes, 0, "");
5ba3f43e
A		 2921#if DEVELOPMENT || DEBUG
2922extern int vm_compressor_current_codec;
2923extern int vm_compressor_test_seg_wp;
2924extern boolean_t vm_compressor_force_sw_wkdm;
2925SYSCTL_INT(_vm, OID_AUTO, compressor_codec, CTLFLAG_RW | CTLFLAG_LOCKED, &vm_compressor_current_codec, 0, "");
2926SYSCTL_INT(_vm, OID_AUTO, compressor_test_wp, CTLFLAG_RW | CTLFLAG_LOCKED, &vm_compressor_test_seg_wp, 0, "");
2927
2928SYSCTL_INT(_vm, OID_AUTO, wksw_force, CTLFLAG_RW | CTLFLAG_LOCKED, &vm_compressor_force_sw_wkdm, 0, "");
2929extern int precompy, wkswhw;
2930
2931SYSCTL_INT(_vm, OID_AUTO, precompy, CTLFLAG_RW | CTLFLAG_LOCKED, &precompy, 0, "");
2932SYSCTL_INT(_vm, OID_AUTO, wkswhw, CTLFLAG_RW | CTLFLAG_LOCKED, &wkswhw, 0, "");
2933extern unsigned int vm_ktrace_enabled;
2934SYSCTL_INT(_vm, OID_AUTO, vm_ktrace, CTLFLAG_RW | CTLFLAG_LOCKED, &vm_ktrace_enabled, 0, "");
2935#endif
39037602 2936
fe8ab488
A		 2937#if CONFIG_PHANTOM_CACHE
2938extern uint32_t phantom_cache_thrashing_threshold;
2939extern uint32_t phantom_cache_eval_period_in_msecs;
2940extern uint32_t phantom_cache_thrashing_threshold_ssd;
2941
2942
2943SYSCTL_INT(_vm, OID_AUTO, phantom_cache_eval_period_in_msecs, CTLFLAG_RW | CTLFLAG_LOCKED, &phantom_cache_eval_period_in_msecs, 0, "");
2944SYSCTL_INT(_vm, OID_AUTO, phantom_cache_thrashing_threshold, CTLFLAG_RW | CTLFLAG_LOCKED, &phantom_cache_thrashing_threshold, 0, "");
2945SYSCTL_INT(_vm, OID_AUTO, phantom_cache_thrashing_threshold_ssd, CTLFLAG_RW | CTLFLAG_LOCKED, &phantom_cache_thrashing_threshold_ssd, 0, "");
2946#endif
2947
39037602
A		 2948#if CONFIG_BACKGROUND_QUEUE
2949
2950extern uint32_t vm_page_background_count;
39037602
A		 2951extern uint32_t vm_page_background_target;
2952extern uint32_t vm_page_background_internal_count;
2953extern uint32_t vm_page_background_external_count;
2954extern uint32_t vm_page_background_mode;
2955extern uint32_t vm_page_background_exclude_external;
2956extern uint64_t vm_page_background_promoted_count;
2957extern uint64_t vm_pageout_considered_bq_internal;
2958extern uint64_t vm_pageout_considered_bq_external;
2959extern uint64_t vm_pageout_rejected_bq_internal;
2960extern uint64_t vm_pageout_rejected_bq_external;
2961
2962SYSCTL_INT(_vm, OID_AUTO, vm_page_background_mode, CTLFLAG_RW | CTLFLAG_LOCKED, &vm_page_background_mode, 0, "");
2963SYSCTL_INT(_vm, OID_AUTO, vm_page_background_exclude_external, CTLFLAG_RW | CTLFLAG_LOCKED, &vm_page_background_exclude_external, 0, "");
39037602
A		 2964SYSCTL_INT(_vm, OID_AUTO, vm_page_background_target, CTLFLAG_RW | CTLFLAG_LOCKED, &vm_page_background_target, 0, "");
2965SYSCTL_INT(_vm, OID_AUTO, vm_page_background_count, CTLFLAG_RD | CTLFLAG_LOCKED, &vm_page_background_count, 0, "");
2966SYSCTL_INT(_vm, OID_AUTO, vm_page_background_internal_count, CTLFLAG_RD | CTLFLAG_LOCKED, &vm_page_background_internal_count, 0, "");
2967SYSCTL_INT(_vm, OID_AUTO, vm_page_background_external_count, CTLFLAG_RD | CTLFLAG_LOCKED, &vm_page_background_external_count, 0, "");
2968
2969SYSCTL_QUAD(_vm, OID_AUTO, vm_page_background_promoted_count, CTLFLAG_RD | CTLFLAG_LOCKED, &vm_page_background_promoted_count, "");
2970SYSCTL_QUAD(_vm, OID_AUTO, vm_pageout_considered_bq_internal, CTLFLAG_RD | CTLFLAG_LOCKED, &vm_pageout_considered_bq_internal, "");
2971SYSCTL_QUAD(_vm, OID_AUTO, vm_pageout_considered_bq_external, CTLFLAG_RD | CTLFLAG_LOCKED, &vm_pageout_considered_bq_external, "");
2972SYSCTL_QUAD(_vm, OID_AUTO, vm_pageout_rejected_bq_internal, CTLFLAG_RD | CTLFLAG_LOCKED, &vm_pageout_rejected_bq_internal, "");
2973SYSCTL_QUAD(_vm, OID_AUTO, vm_pageout_rejected_bq_external, CTLFLAG_RD | CTLFLAG_LOCKED, &vm_pageout_rejected_bq_external, "");
2974
2975#endif
2976
04b8595b
A		 2977#if (DEVELOPMENT || DEBUG)
2978
2979SYSCTL_UINT(_vm, OID_AUTO, vm_page_creation_throttled_hard,
3e170ce0
A		 2980 CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED,
2981 &vm_page_creation_throttled_hard, 0, "");
04b8595b
A		 2982
2983SYSCTL_UINT(_vm, OID_AUTO, vm_page_creation_throttled_soft,
3e170ce0
A		 2984 CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED,
2985 &vm_page_creation_throttled_soft, 0, "");
04b8595b 2986
39037602
A		 2987extern uint32_t vm_pageout_memorystatus_fb_factor_nr;
2988extern uint32_t vm_pageout_memorystatus_fb_factor_dr;
2989SYSCTL_INT(_vm, OID_AUTO, vm_pageout_memorystatus_fb_factor_nr, CTLFLAG_RW | CTLFLAG_LOCKED, &vm_pageout_memorystatus_fb_factor_nr, 0, "");
2990SYSCTL_INT(_vm, OID_AUTO, vm_pageout_memorystatus_fb_factor_dr, CTLFLAG_RW | CTLFLAG_LOCKED, &vm_pageout_memorystatus_fb_factor_dr, 0, "");
2991
2992extern uint32_t vm_grab_anon_overrides;
2993extern uint32_t vm_grab_anon_nops;
2994
2995SYSCTL_INT(_vm, OID_AUTO, vm_grab_anon_overrides, CTLFLAG_RW | CTLFLAG_LOCKED, &vm_grab_anon_overrides, 0, "");
2996SYSCTL_INT(_vm, OID_AUTO, vm_grab_anon_nops, CTLFLAG_RW | CTLFLAG_LOCKED, &vm_grab_anon_nops, 0, "");
2997
2998/* log message counters for persistence mode */
2999extern uint32_t oslog_p_total_msgcount;
3000extern uint32_t oslog_p_metadata_saved_msgcount;
3001extern uint32_t oslog_p_metadata_dropped_msgcount;
3002extern uint32_t oslog_p_error_count;
3003extern uint32_t oslog_p_saved_msgcount;
3004extern uint32_t oslog_p_dropped_msgcount;
3005extern uint32_t oslog_p_boot_dropped_msgcount;
3006
3007/* log message counters for streaming mode */
3008extern uint32_t oslog_s_total_msgcount;
3009extern uint32_t oslog_s_metadata_msgcount;
3010extern uint32_t oslog_s_error_count;
3011extern uint32_t oslog_s_streamed_msgcount;
3012extern uint32_t oslog_s_dropped_msgcount;
3013
3014SYSCTL_UINT(_debug, OID_AUTO, oslog_p_total_msgcount, CTLFLAG_ANYBODY | CTLFLAG_RD | CTLFLAG_LOCKED, &oslog_p_total_msgcount, 0, "");
3015SYSCTL_UINT(_debug, OID_AUTO, oslog_p_metadata_saved_msgcount, CTLFLAG_ANYBODY | CTLFLAG_RD | CTLFLAG_LOCKED, &oslog_p_metadata_saved_msgcount, 0, "");
3016SYSCTL_UINT(_debug, OID_AUTO, oslog_p_metadata_dropped_msgcount, CTLFLAG_ANYBODY | CTLFLAG_RD | CTLFLAG_LOCKED, &oslog_p_metadata_dropped_msgcount, 0, "");
3017SYSCTL_UINT(_debug, OID_AUTO, oslog_p_error_count, CTLFLAG_ANYBODY | CTLFLAG_RD | CTLFLAG_LOCKED, &oslog_p_error_count, 0, "");
3018SYSCTL_UINT(_debug, OID_AUTO, oslog_p_saved_msgcount, CTLFLAG_ANYBODY | CTLFLAG_RD | CTLFLAG_LOCKED, &oslog_p_saved_msgcount, 0, "");
3019SYSCTL_UINT(_debug, OID_AUTO, oslog_p_dropped_msgcount, CTLFLAG_ANYBODY | CTLFLAG_RD | CTLFLAG_LOCKED, &oslog_p_dropped_msgcount, 0, "");
3020SYSCTL_UINT(_debug, OID_AUTO, oslog_p_boot_dropped_msgcount, CTLFLAG_ANYBODY | CTLFLAG_RD | CTLFLAG_LOCKED, &oslog_p_boot_dropped_msgcount, 0, "");
3021
3022SYSCTL_UINT(_debug, OID_AUTO, oslog_s_total_msgcount, CTLFLAG_ANYBODY | CTLFLAG_RD | CTLFLAG_LOCKED, &oslog_s_total_msgcount, 0, "");
3023SYSCTL_UINT(_debug, OID_AUTO, oslog_s_metadata_msgcount, CTLFLAG_ANYBODY | CTLFLAG_RD | CTLFLAG_LOCKED, &oslog_s_metadata_msgcount, 0, "");
3024SYSCTL_UINT(_debug, OID_AUTO, oslog_s_error_count, CTLFLAG_ANYBODY | CTLFLAG_RD | CTLFLAG_LOCKED, &oslog_s_error_count, 0, "");
3025SYSCTL_UINT(_debug, OID_AUTO, oslog_s_streamed_msgcount, CTLFLAG_ANYBODY | CTLFLAG_RD | CTLFLAG_LOCKED, &oslog_s_streamed_msgcount, 0, "");
3026SYSCTL_UINT(_debug, OID_AUTO, oslog_s_dropped_msgcount, CTLFLAG_ANYBODY | CTLFLAG_RD | CTLFLAG_LOCKED, &oslog_s_dropped_msgcount, 0, "");
3027
3028
04b8595b
A		 3029#endif /* DEVELOPMENT || DEBUG */
3030
b0d623f7 3031/*
fe8ab488 3032 * Enable tracing of voucher contents
b0d623f7 3033 */
fe8ab488 3034extern uint32_t ipc_voucher_trace_contents;
b0d623f7 3035
fe8ab488
A		 3036SYSCTL_INT (_kern, OID_AUTO, ipc_voucher_trace_contents,
3037 CTLFLAG_RW | CTLFLAG_LOCKED, &ipc_voucher_trace_contents, 0, "Enable tracing voucher contents");
b0d623f7
A		 3038
3039/*
3040 * Kernel stack size and depth
3041 */
3042SYSCTL_INT (_kern, OID_AUTO, stack_size,
6d2010ae 3043 CTLFLAG_RD | CTLFLAG_LOCKED, (int *) &kernel_stack_size, 0, "Kernel stack size");
b0d623f7 3044SYSCTL_INT (_kern, OID_AUTO, stack_depth_max,
6d2010ae 3045 CTLFLAG_RD | CTLFLAG_LOCKED, (int *) &kernel_stack_depth_max, 0, "Max kernel stack depth at interrupt or context switch");
b0d623f7 3046
5ba3f43e
A		 3047extern unsigned int kern_feature_overrides;
3048SYSCTL_INT (_kern, OID_AUTO, kern_feature_overrides,
3049 CTLFLAG_RD | CTLFLAG_LOCKED, &kern_feature_overrides, 0, "Kernel feature override mask");
3050
b7266188
A		 3051/*
3052 * enable back trace for port allocations
3053 */
3054extern int ipc_portbt;
3055
3056SYSCTL_INT(_kern, OID_AUTO, ipc_portbt,
6d2010ae 3057 CTLFLAG_RW | CTLFLAG_KERN | CTLFLAG_LOCKED,
b7266188
A		 3058 &ipc_portbt, 0, "");
3059
6d2010ae
A		 3060/*
3061 * Scheduler sysctls
3062 */
3063
6d2010ae
A		 3064SYSCTL_STRING(_kern, OID_AUTO, sched,
3065 CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED,
3066 sched_string, sizeof(sched_string),
3067 "Timeshare scheduler implementation");
316670eb
A		 3068
3069/*
3070 * Only support runtime modification on embedded platforms
3071 * with development config enabled
3072 */
5ba3f43e
A		 3073#if CONFIG_EMBEDDED
3074#if !SECURE_KERNEL
3075extern int precise_user_kernel_time;
3076SYSCTL_INT(_kern, OID_AUTO, precise_user_kernel_time,
3077 CTLFLAG_RW | CTLFLAG_LOCKED,
3078 &precise_user_kernel_time, 0, "Precise accounting of kernel vs. user time");
3079#endif
3080#endif
fe8ab488
A		 3081
3082
3083/* Parameters related to timer coalescing tuning, to be replaced
3084 * with a dedicated systemcall in the future.
3085 */
3086/* Enable processing pending timers in the context of any other interrupt
3087 * Coalescing tuning parameters for various thread/task attributes */
3088STATIC int
3089sysctl_timer_user_us_kernel_abstime SYSCTL_HANDLER_ARGS
3090{
3091#pragma unused(oidp)
3092 int size = arg2; /* subcommand*/
3093 int error;
3094 int changed = 0;
3095 uint64_t old_value_ns;
3096 uint64_t new_value_ns;
3097 uint64_t value_abstime;
3098 if (size == sizeof(uint32_t))
3099 value_abstime = *((uint32_t *)arg1);
3100 else if (size == sizeof(uint64_t))
3101 value_abstime = *((uint64_t *)arg1);
3102 else return ENOTSUP;
3103
3104 absolutetime_to_nanoseconds(value_abstime, &old_value_ns);
3105 error = sysctl_io_number(req, old_value_ns, sizeof(old_value_ns), &new_value_ns, &changed);
3106 if ((error) || (!changed))
3107 return error;
3108
3109 nanoseconds_to_absolutetime(new_value_ns, &value_abstime);
3110 if (size == sizeof(uint32_t))
3111 *((uint32_t *)arg1) = (uint32_t)value_abstime;
3112 else
3113 *((uint64_t *)arg1) = value_abstime;
3114 return error;
3115}
3116
3117SYSCTL_INT(_kern, OID_AUTO, timer_coalesce_bg_scale,
3118 CTLFLAG_KERN | CTLFLAG_RW | CTLFLAG_LOCKED,
3119 &tcoal_prio_params.timer_coalesce_bg_shift, 0, "");
3120SYSCTL_PROC(_kern, OID_AUTO, timer_resort_threshold_ns,
3121 CTLTYPE_QUAD | CTLFLAG_KERN | CTLFLAG_RW | CTLFLAG_LOCKED,
3122 &tcoal_prio_params.timer_resort_threshold_abstime,
3123 sizeof(tcoal_prio_params.timer_resort_threshold_abstime),
3124 sysctl_timer_user_us_kernel_abstime,
3125 "Q", "");
3126SYSCTL_PROC(_kern, OID_AUTO, timer_coalesce_bg_ns_max,
3127 CTLTYPE_QUAD | CTLFLAG_KERN | CTLFLAG_RW | CTLFLAG_LOCKED,
3128 &tcoal_prio_params.timer_coalesce_bg_abstime_max,
3129 sizeof(tcoal_prio_params.timer_coalesce_bg_abstime_max),
3130 sysctl_timer_user_us_kernel_abstime,
3131 "Q", "");
3132
3133SYSCTL_INT(_kern, OID_AUTO, timer_coalesce_kt_scale,
3134 CTLFLAG_KERN | CTLFLAG_RW | CTLFLAG_LOCKED,
3135 &tcoal_prio_params.timer_coalesce_kt_shift, 0, "");
3136
3137SYSCTL_PROC(_kern, OID_AUTO, timer_coalesce_kt_ns_max,
3138 CTLTYPE_QUAD | CTLFLAG_KERN | CTLFLAG_RW | CTLFLAG_LOCKED,
3139 &tcoal_prio_params.timer_coalesce_kt_abstime_max,
3140 sizeof(tcoal_prio_params.timer_coalesce_kt_abstime_max),
3141 sysctl_timer_user_us_kernel_abstime,
3142 "Q", "");
3143
3144SYSCTL_INT(_kern, OID_AUTO, timer_coalesce_fp_scale,
3145 CTLFLAG_KERN | CTLFLAG_RW | CTLFLAG_LOCKED,
3146 &tcoal_prio_params.timer_coalesce_fp_shift, 0, "");
3147
3148SYSCTL_PROC(_kern, OID_AUTO, timer_coalesce_fp_ns_max,
3149 CTLTYPE_QUAD | CTLFLAG_KERN | CTLFLAG_RW | CTLFLAG_LOCKED,
3150 &tcoal_prio_params.timer_coalesce_fp_abstime_max,
3151 sizeof(tcoal_prio_params.timer_coalesce_fp_abstime_max),
3152 sysctl_timer_user_us_kernel_abstime,
3153 "Q", "");
3154
3155SYSCTL_INT(_kern, OID_AUTO, timer_coalesce_ts_scale,
3156 CTLFLAG_KERN | CTLFLAG_RW | CTLFLAG_LOCKED,
3157 &tcoal_prio_params.timer_coalesce_ts_shift, 0, "");
3158
3159SYSCTL_PROC(_kern, OID_AUTO, timer_coalesce_ts_ns_max,
3160 CTLTYPE_QUAD | CTLFLAG_KERN | CTLFLAG_RW | CTLFLAG_LOCKED,
3161 &tcoal_prio_params.timer_coalesce_ts_abstime_max,
3162 sizeof(tcoal_prio_params.timer_coalesce_ts_abstime_max),
3163 sysctl_timer_user_us_kernel_abstime,
3164 "Q", "");
3165
3166SYSCTL_INT(_kern, OID_AUTO, timer_coalesce_tier0_scale,
3167 CTLFLAG_KERN | CTLFLAG_RW | CTLFLAG_LOCKED,
3168 &tcoal_prio_params.latency_qos_scale[0], 0, "");
3169
3170SYSCTL_PROC(_kern, OID_AUTO, timer_coalesce_tier0_ns_max,
3171 CTLTYPE_QUAD | CTLFLAG_KERN | CTLFLAG_RW | CTLFLAG_LOCKED,
3172 &tcoal_prio_params.latency_qos_abstime_max[0],
3173 sizeof(tcoal_prio_params.latency_qos_abstime_max[0]),
3174 sysctl_timer_user_us_kernel_abstime,
3175 "Q", "");
3176
3177SYSCTL_INT(_kern, OID_AUTO, timer_coalesce_tier1_scale,
3178 CTLFLAG_KERN | CTLFLAG_RW | CTLFLAG_LOCKED,
3179 &tcoal_prio_params.latency_qos_scale[1], 0, "");
3180
3181SYSCTL_PROC(_kern, OID_AUTO, timer_coalesce_tier1_ns_max,
3182 CTLTYPE_QUAD | CTLFLAG_KERN | CTLFLAG_RW | CTLFLAG_LOCKED,
3183 &tcoal_prio_params.latency_qos_abstime_max[1],
3184 sizeof(tcoal_prio_params.latency_qos_abstime_max[1]),
3185 sysctl_timer_user_us_kernel_abstime,
3186 "Q", "");
3187
3188SYSCTL_INT(_kern, OID_AUTO, timer_coalesce_tier2_scale,
3189 CTLFLAG_KERN | CTLFLAG_RW | CTLFLAG_LOCKED,
3190 &tcoal_prio_params.latency_qos_scale[2], 0, "");
3191
3192SYSCTL_PROC(_kern, OID_AUTO, timer_coalesce_tier2_ns_max,
3193 CTLTYPE_QUAD | CTLFLAG_KERN | CTLFLAG_RW | CTLFLAG_LOCKED,
3194 &tcoal_prio_params.latency_qos_abstime_max[2],
3195 sizeof(tcoal_prio_params.latency_qos_abstime_max[2]),
3196 sysctl_timer_user_us_kernel_abstime,
3197 "Q", "");
3198
3199SYSCTL_INT(_kern, OID_AUTO, timer_coalesce_tier3_scale,
3200 CTLFLAG_KERN | CTLFLAG_RW | CTLFLAG_LOCKED,
3201 &tcoal_prio_params.latency_qos_scale[3], 0, "");
3202
3203SYSCTL_PROC(_kern, OID_AUTO, timer_coalesce_tier3_ns_max,
3204 CTLTYPE_QUAD | CTLFLAG_KERN | CTLFLAG_RW | CTLFLAG_LOCKED,
3205 &tcoal_prio_params.latency_qos_abstime_max[3],
3206 sizeof(tcoal_prio_params.latency_qos_abstime_max[3]),
3207 sysctl_timer_user_us_kernel_abstime,
3208 "Q", "");
3209
3210SYSCTL_INT(_kern, OID_AUTO, timer_coalesce_tier4_scale,
3211 CTLFLAG_KERN | CTLFLAG_RW | CTLFLAG_LOCKED,
3212 &tcoal_prio_params.latency_qos_scale[4], 0, "");
3213
3214SYSCTL_PROC(_kern, OID_AUTO, timer_coalesce_tier4_ns_max,
3215 CTLTYPE_QUAD | CTLFLAG_KERN | CTLFLAG_RW | CTLFLAG_LOCKED,
3216 &tcoal_prio_params.latency_qos_abstime_max[4],
3217 sizeof(tcoal_prio_params.latency_qos_abstime_max[4]),
3218 sysctl_timer_user_us_kernel_abstime,
3219 "Q", "");
3220
3221SYSCTL_INT(_kern, OID_AUTO, timer_coalesce_tier5_scale,
3222 CTLFLAG_KERN | CTLFLAG_RW | CTLFLAG_LOCKED,
3223 &tcoal_prio_params.latency_qos_scale[5], 0, "");
3224
3225SYSCTL_PROC(_kern, OID_AUTO, timer_coalesce_tier5_ns_max,
3226 CTLTYPE_QUAD | CTLFLAG_KERN | CTLFLAG_RW | CTLFLAG_LOCKED,
3227 &tcoal_prio_params.latency_qos_abstime_max[5],
3228 sizeof(tcoal_prio_params.latency_qos_abstime_max[5]),
3229 sysctl_timer_user_us_kernel_abstime,
3230 "Q", "");
3231
3232/* Communicate the "user idle level" heuristic to the timer layer, and
3233 * potentially other layers in the future.
3234 */
3235
3236static int
3237timer_user_idle_level(__unused struct sysctl_oid *oidp, __unused void *arg1, __unused int arg2, struct sysctl_req *req) {
3238 int new_value = 0, old_value = 0, changed = 0, error;
3239
3240 old_value = timer_get_user_idle_level();
3241
3242 error = sysctl_io_number(req, old_value, sizeof(int), &new_value, &changed);
3243
3244 if (error == 0 && changed) {
3245 if (timer_set_user_idle_level(new_value) != KERN_SUCCESS)
3246 error = ERANGE;
3247 }
3248
3249 return error;
3250}
3251
3252SYSCTL_PROC(_machdep, OID_AUTO, user_idle_level,
3253 CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_LOCKED,
3254 0, 0,
3255 timer_user_idle_level, "I", "User idle level heuristic, 0-128");
3256
3257#if HYPERVISOR
3258SYSCTL_INT(_kern, OID_AUTO, hv_support,
3259 CTLFLAG_KERN | CTLFLAG_RD | CTLFLAG_LOCKED,
3260 &hv_support_available, 0, "");
3261#endif
3e170ce0 3262
5ba3f43e
A		 3263#if CONFIG_EMBEDDED
3264STATIC int
3265sysctl_darkboot SYSCTL_HANDLER_ARGS
3266{
3267 int err = 0, value = 0;
3268#pragma unused(oidp, arg1, arg2, err, value, req)
3269
3270 /*
3271 * Handle the sysctl request.
3272 *
3273 * If this is a read, the function will set the value to the current darkboot value. Otherwise,
3274 * we'll get the request identifier into "value" and then we can honor it.
3275 */
3276 if ((err = sysctl_io_number(req, darkboot, sizeof(int), &value, NULL)) != 0) {
3277 goto exit;
3278 }
3279
3280 /* writing requested, let's process the request */
3281 if (req->newptr) {
3282 /* writing is protected by an entitlement */
3283 if (priv_check_cred(kauth_cred_get(), PRIV_DARKBOOT, 0) != 0) {
3284 err = EPERM;
3285 goto exit;
3286 }
3287
3288 switch (value) {
3289 case MEMORY_MAINTENANCE_DARK_BOOT_UNSET:
3290 /*
3291 * If the darkboot sysctl is unset, the NVRAM variable
3292 * must be unset too. If that's not the case, it means
3293 * someone is doing something crazy and not supported.
3294 */
3295 if (darkboot != 0) {
3296 int ret = PERemoveNVRAMProperty(MEMORY_MAINTENANCE_DARK_BOOT_NVRAM_NAME);
3297 if (ret) {
3298 darkboot = 0;
3299 } else {
3300 err = EINVAL;
3301 }
3302 }
3303 break;
3304 case MEMORY_MAINTENANCE_DARK_BOOT_SET:
3305 darkboot = 1;
3306 break;
3307 case MEMORY_MAINTENANCE_DARK_BOOT_SET_PERSISTENT: {
3308 /*
3309 * Set the NVRAM and update 'darkboot' in case
3310 * of success. Otherwise, do not update
3311 * 'darkboot' and report the failure.
3312 */
3313 if (PEWriteNVRAMBooleanProperty(MEMORY_MAINTENANCE_DARK_BOOT_NVRAM_NAME, TRUE)) {
3314 darkboot = 1;
3315 } else {
3316 err = EINVAL;
3317 }
3318
3319 break;
3320 }
3321 default:
3322 err = EINVAL;
3323 }
3324 }
3325
3326exit:
3327 return err;
3328}
3329
3330SYSCTL_PROC(_kern, OID_AUTO, darkboot,
3331 CTLFLAG_KERN | CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_LOCKED | CTLFLAG_ANYBODY,
3332 0, 0, sysctl_darkboot, "I", "");
3333#endif
3e170ce0 3334
39037602
A		 3335/*
3336 * This is set by core audio to tell tailspin (ie background tracing) how long
3337 * its smallest buffer is. Background tracing can then try to make a reasonable
3338 * decisions to try to avoid introducing so much latency that the buffers will
3339 * underflow.
3340 */
3341
3342int min_audio_buffer_usec;
3343
3344STATIC int
3345sysctl_audio_buffer SYSCTL_HANDLER_ARGS
3346{
3347#pragma unused(oidp, arg1, arg2)
3348 int err = 0, value = 0, changed = 0;
3349 err = sysctl_io_number(req, min_audio_buffer_usec, sizeof(int), &value, &changed);
3350 if (err) goto exit;
3351
3352 if (changed) {
3353 /* writing is protected by an entitlement */
3354 if (priv_check_cred(kauth_cred_get(), PRIV_AUDIO_LATENCY, 0) != 0) {
3355 err = EPERM;
3356 goto exit;
3357 }
3358 min_audio_buffer_usec = value;
3359 }
3360exit:
3361 return err;
3362}
3363
3364SYSCTL_PROC(_kern, OID_AUTO, min_audio_buffer_usec, CTLFLAG_RW | CTLFLAG_ANYBODY, 0, 0, sysctl_audio_buffer, "I", "Minimum audio buffer size, in microseconds");
3365
3366#if DEVELOPMENT || DEBUG
3367#include <sys/sysent.h>
3368/* This should result in a fatal exception, verifying that "sysent" is
3369 * write-protected.
3370 */
3371static int
3372kern_sysent_write(__unused struct sysctl_oid *oidp, __unused void *arg1, __unused int arg2, struct sysctl_req *req) {
3373 uint64_t new_value = 0, old_value = 0;
3374 int changed = 0, error;
3375
3376 error = sysctl_io_number(req, old_value, sizeof(uint64_t), &new_value, &changed);
3377 if ((error == 0) && changed) {
3378 volatile uint32_t *wraddr = (uint32_t *) &sysent[0];
3379 *wraddr = 0;
3380 printf("sysent[0] write succeeded\n");
3381 }
3382 return error;
3383}
3384
3385SYSCTL_PROC(_kern, OID_AUTO, sysent_const_check,
3386 CTLTYPE_QUAD | CTLFLAG_RW | CTLFLAG_LOCKED,
3387 0, 0,
3388 kern_sysent_write, "I", "Attempt sysent[0] write");
3389
3390#endif
3391
3392#if DEVELOPMENT || DEBUG
3393SYSCTL_COMPAT_INT(_kern, OID_AUTO, development, CTLFLAG_RD | CTLFLAG_MASKED, NULL, 1, "");
3394#else
3395SYSCTL_COMPAT_INT(_kern, OID_AUTO, development, CTLFLAG_RD | CTLFLAG_MASKED, NULL, 0, "");
3396#endif
5ba3f43e
A		 3397
3398
3399#if DEVELOPMENT || DEBUG
3400
3401static int
3402sysctl_panic_test SYSCTL_HANDLER_ARGS
3403{
3404#pragma unused(arg1, arg2)
3405 int rval = 0;
3406 char str[32] = "entry prelog postlog postcore";
3407
3408 rval = sysctl_handle_string(oidp, str, sizeof(str), req);
3409
3410 if (rval == 0 && req->newptr) {
3411 if (strncmp("entry", str, strlen("entry")) == 0) {
3412 panic_with_options(0, NULL, DEBUGGER_OPTION_RECURPANIC_ENTRY, "test recursive panic at entry");
3413 } else if (strncmp("prelog", str, strlen("prelog")) == 0) {
3414 panic_with_options(0, NULL, DEBUGGER_OPTION_RECURPANIC_PRELOG, "test recursive panic prior to writing a paniclog");
3415 } else if (strncmp("postlog", str, strlen("postlog")) == 0) {
3416 panic_with_options(0, NULL, DEBUGGER_OPTION_RECURPANIC_POSTLOG, "test recursive panic subsequent to paniclog");
3417 } else if (strncmp("postcore", str, strlen("postcore")) == 0) {
3418 panic_with_options(0, NULL, DEBUGGER_OPTION_RECURPANIC_POSTCORE, "test recursive panic subsequent to on-device core");
3419 }
3420 }
3421
3422 return rval;
3423}
3424
3425static int
3426sysctl_debugger_test SYSCTL_HANDLER_ARGS
3427{
3428#pragma unused(arg1, arg2)
3429 int rval = 0;
3430 char str[32] = "entry prelog postlog postcore";
3431
3432 rval = sysctl_handle_string(oidp, str, sizeof(str), req);
3433
3434 if (rval == 0 && req->newptr) {
3435 if (strncmp("entry", str, strlen("entry")) == 0) {
3436 DebuggerWithContext(0, NULL, "test recursive panic via debugger at entry", DEBUGGER_OPTION_RECURPANIC_ENTRY);
3437 } else if (strncmp("prelog", str, strlen("prelog")) == 0) {
3438 DebuggerWithContext(0, NULL, "test recursive panic via debugger prior to writing a paniclog", DEBUGGER_OPTION_RECURPANIC_PRELOG);
3439 } else if (strncmp("postlog", str, strlen("postlog")) == 0) {
3440 DebuggerWithContext(0, NULL, "test recursive panic via debugger subsequent to paniclog", DEBUGGER_OPTION_RECURPANIC_POSTLOG);
3441 } else if (strncmp("postcore", str, strlen("postcore")) == 0) {
3442 DebuggerWithContext(0, NULL, "test recursive panic via debugger subsequent to on-device core", DEBUGGER_OPTION_RECURPANIC_POSTCORE);
3443 }
3444 }
3445
3446 return rval;
3447}
3448
3449decl_lck_spin_data(, spinlock_panic_test_lock)
3450
3451__attribute__((noreturn))
3452static void
3453spinlock_panic_test_acquire_spinlock(void * arg __unused, wait_result_t wres __unused)
3454{
3455 lck_spin_lock(&spinlock_panic_test_lock);
3456 while (1) { ; }
3457}
3458
3459static int
3460sysctl_spinlock_panic_test SYSCTL_HANDLER_ARGS
3461{
3462#pragma unused(oidp, arg1, arg2)
3463 if (req->newlen == 0)
3464 return EINVAL;
3465
3466 thread_t panic_spinlock_thread;
3467 /* Initialize panic spinlock */
3468 lck_grp_t * panic_spinlock_grp;
3469 lck_grp_attr_t * panic_spinlock_grp_attr;
3470 lck_attr_t * panic_spinlock_attr;
3471
3472 panic_spinlock_grp_attr = lck_grp_attr_alloc_init();
3473 panic_spinlock_grp = lck_grp_alloc_init("panic_spinlock", panic_spinlock_grp_attr);
3474 panic_spinlock_attr = lck_attr_alloc_init();
3475
3476 lck_spin_init(&spinlock_panic_test_lock, panic_spinlock_grp, panic_spinlock_attr);
3477
3478
3479 /* Create thread to acquire spinlock */
3480 if (kernel_thread_start(spinlock_panic_test_acquire_spinlock, NULL, &panic_spinlock_thread) != KERN_SUCCESS) {
3481 return EBUSY;
3482 }
3483
3484 /* Try to acquire spinlock -- should panic eventually */
3485 lck_spin_lock(&spinlock_panic_test_lock);
3486 while(1) { ; }
3487}
3488
3489__attribute__((noreturn))
3490static void
3491simultaneous_panic_worker
3492(void * arg, wait_result_t wres __unused)
3493{
3494 atomic_int *start_panic = (atomic_int *)arg;
3495
3496 while (!atomic_load(start_panic)) { ; }
3497 panic("SIMULTANEOUS PANIC TEST: INITIATING PANIC FROM CPU %d", cpu_number());
3498 __builtin_unreachable();
3499}
3500
3501static int
3502sysctl_simultaneous_panic_test SYSCTL_HANDLER_ARGS
3503{
3504#pragma unused(oidp, arg1, arg2)
3505 if (req->newlen == 0)
3506 return EINVAL;
3507
3508 int i = 0, threads_to_create = 2 * processor_count;
3509 atomic_int start_panic = 0;
3510 unsigned int threads_created = 0;
3511 thread_t new_panic_thread;
3512
3513 for (i = threads_to_create; i > 0; i--) {
3514 if (kernel_thread_start(simultaneous_panic_worker, (void *) &start_panic, &new_panic_thread) == KERN_SUCCESS) {
3515 threads_created++;
3516 }
3517 }
3518
3519 /* FAIL if we couldn't create at least processor_count threads */
3520 if (threads_created < processor_count) {
3521 panic("SIMULTANEOUS PANIC TEST: FAILED TO CREATE ENOUGH THREADS, ONLY CREATED %d (of %d)",
3522 threads_created, threads_to_create);
3523 }
3524
3525 atomic_exchange(&start_panic, 1);
3526 while (1) { ; }
3527}
3528
3529SYSCTL_PROC(_debug, OID_AUTO, panic_test, CTLTYPE_STRING | CTLFLAG_RW | CTLFLAG_KERN | CTLFLAG_MASKED, 0, 0, sysctl_panic_test, "A", "panic test");
3530SYSCTL_PROC(_debug, OID_AUTO, debugger_test, CTLTYPE_STRING | CTLFLAG_RW | CTLFLAG_KERN | CTLFLAG_MASKED, 0, 0, sysctl_debugger_test, "A", "debugger test");
3531SYSCTL_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");
3532SYSCTL_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");
3533
3534
3535#endif /* DEVELOPMENT || DEBUG */
3536
3537const uint32_t thread_groups_supported = 0;
3538
3539STATIC int
3540sysctl_thread_groups_supported (__unused struct sysctl_oid *oidp, __unused void *arg1, __unused int arg2, struct sysctl_req *req)
3541{
3542 int value = thread_groups_supported;
3543 return sysctl_io_number(req, value, sizeof(value), NULL, NULL);
3544}
3545
3546SYSCTL_PROC(_kern, OID_AUTO, thread_groups_supported, CTLFLAG_RD | CTLFLAG_LOCKED | CTLFLAG_KERN,
3547 0, 0, &sysctl_thread_groups_supported, "I", "thread groups supported");
3548
3549static int
3550sysctl_grade_cputype SYSCTL_HANDLER_ARGS
3551{
3552#pragma unused(arg1, arg2, oidp)
3553 int error = 0;
3554 int type_tuple[2] = {};
3555 int return_value = 0;
3556
3557 error = SYSCTL_IN(req, &type_tuple, sizeof(type_tuple));
3558
3559 if (error) {
3560 return error;
3561 }
3562
3563 return_value = grade_binary(type_tuple[0], type_tuple[1]);
3564
3565 error = SYSCTL_OUT(req, &return_value, sizeof(return_value));
3566
3567 if (error) {
3568 return error;
3569 }
3570
3571 return error;
3572}
3573
3574SYSCTL_PROC(_kern, OID_AUTO, grade_cputype,
3575 CTLFLAG_RW|CTLFLAG_ANYBODY|CTLFLAG_MASKED|CTLFLAG_LOCKED|CTLTYPE_OPAQUE,
3576 0, 0, &sysctl_grade_cputype, "S",
3577 "grade value of cpu_type_t+cpu_sub_type_t");
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