/*
- * Copyright (c) 2000-2007 Apple Inc. All rights reserved.
+ * Copyright (c) 2000-2019 Apple Inc. All rights reserved.
*
* @APPLE_OSREFERENCE_LICENSE_HEADER_START@
- *
+ *
* This file contains Original Code and/or Modifications of Original Code
* as defined in and that are subject to the Apple Public Source License
* Version 2.0 (the 'License'). You may not use this file except in
* unlawful or unlicensed copies of an Apple operating system, or to
* circumvent, violate, or enable the circumvention or violation of, any
* terms of an Apple operating system software license agreement.
- *
+ *
* Please obtain a copy of the License at
* http://www.opensource.apple.com/apsl/ and read it before using this file.
- *
+ *
* The Original Code and all software distributed under the License are
* distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
* EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
* FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
* Please see the License for the specific language governing rights and
* limitations under the License.
- *
+ *
* @APPLE_OSREFERENCE_LICENSE_HEADER_END@
*/
/* Copyright (c) 1995 NeXT Computer, Inc. All Rights Reserved */
*/
/*
-* DEPRECATED sysctl system call code
+ * DEPRECATED sysctl system call code
*
* Everything in this file is deprecated. Sysctls should be handled
* by the code in kern_newsysctl.c.
#include <sys/user.h>
#include <sys/aio_kern.h>
#include <sys/reboot.h>
+#include <sys/memory_maintenance.h>
+#include <sys/priv.h>
+#include <stdatomic.h>
-#include <bsm/audit_kernel.h>
+#include <security/audit/audit.h>
+#include <kern/kalloc.h>
+#include <machine/smp.h>
+#include <machine/atomic.h>
#include <mach/machine.h>
+#include <mach/mach_host.h>
#include <mach/mach_types.h>
+#include <mach/processor_info.h>
#include <mach/vm_param.h>
+#include <kern/debug.h>
+#include <kern/mach_param.h>
#include <kern/task.h>
-#include <kern/lock.h>
+#include <kern/thread.h>
+#include <kern/thread_group.h>
+#include <kern/processor.h>
+#include <kern/cpu_number.h>
+#include <kern/cpu_quiesce.h>
+#include <kern/sched_prim.h>
#include <vm/vm_kern.h>
#include <vm/vm_map.h>
#include <mach/host_info.h>
#include <sys/mount_internal.h>
#include <sys/kdebug.h>
-#include <sys/sysproto.h>
+#include <sys/kern_sysctl.h>
#include <IOKit/IOPlatformExpert.h>
#include <pexpert/pexpert.h>
#include <machine/machine_routines.h>
#include <machine/exec.h>
+#include <nfs/nfs_conf.h>
+
#include <vm/vm_protos.h>
+#include <vm/vm_pageout.h>
+#include <vm/vm_compressor_algorithms.h>
+#include <sys/imgsrc.h>
+#include <kern/timer_call.h>
-#ifdef __i386__
+#if defined(__i386__) || defined(__x86_64__)
#include <i386/cpuid.h>
#endif
-sysctlfn kern_sysctl;
-#ifdef DEBUG
-sysctlfn debug_sysctl;
+#if CONFIG_FREEZE
+#include <sys/kern_memorystatus.h>
#endif
-extern sysctlfn net_sysctl;
-extern sysctlfn cpu_sysctl;
-extern int aio_max_requests;
-extern int aio_max_requests_per_process;
-extern int aio_worker_threads;
-extern int lowpri_IO_window_msecs;
-extern int lowpri_IO_delay_msecs;
-extern int nx_enabled;
-extern int speculative_reads_disabled;
-static void
-fill_eproc(proc_t p, struct eproc *ep);
-static void
-fill_externproc(proc_t p, struct extern_proc *exp);
-static void
-fill_user_eproc(proc_t p, struct user_eproc *ep);
-static void
-fill_user_proc(proc_t p, struct user_kinfo_proc *kp);
-static void
-fill_user_externproc(proc_t p, struct user_extern_proc *exp);
-extern int
-kdbg_control(int *name, u_int namelen, user_addr_t where, size_t * sizep);
-int
-kdebug_ops(int *name, u_int namelen, user_addr_t where, size_t *sizep, proc_t p);
-#if NFSCLIENT
-extern int
-netboot_root(void);
+#if KPERF
+#include <kperf/kperf.h>
#endif
-int
-pcsamples_ops(int *name, u_int namelen, user_addr_t where, size_t *sizep,
- proc_t p);
-__private_extern__ kern_return_t
-reset_vmobjectcache(unsigned int val1, unsigned int val2);
-int
-sysctl_doproc(int *name, u_int namelen, user_addr_t where, size_t *sizep);
-int
-sysctl_doprof(int *name, u_int namelen, user_addr_t oldp, size_t *oldlenp,
- user_addr_t newp, size_t newlen);
-static void
-fill_proc(proc_t p, struct kinfo_proc *kp);
-int
-sysctl_procargs(int *name, u_int namelen, user_addr_t where,
- size_t *sizep, proc_t cur_proc);
-static int
-sysctl_procargs2(int *name, u_int namelen, user_addr_t where, size_t *sizep,
- proc_t cur_proc);
-static int
-sysctl_procargsx(int *name, u_int namelen, user_addr_t where, size_t *sizep,
- proc_t cur_proc, int argc_yes);
-int
-sysctl_struct(user_addr_t oldp, size_t *oldlenp, user_addr_t newp,
- size_t newlen, void *sp, int len);
-
-static int sysdoproc_filt_KERN_PROC_PID(proc_t p, void * arg);
-static int sysdoproc_filt_KERN_PROC_PGRP(proc_t p, void * arg);
-static int sysdoproc_filt_KERN_PROC_TTY(proc_t p, void * arg);
-static int sysdoproc_filt_KERN_PROC_UID(proc_t p, void * arg);
-static int sysdoproc_filt_KERN_PROC_RUID(proc_t p, void * arg);
-static int sysdoproc_filt_KERN_PROC_LCID(proc_t p, void * arg);
-int sysdoproc_callback(proc_t p, void *arg);
-
-static int __sysctl_funneled(proc_t p, struct __sysctl_args *uap, register_t *retval);
-extern void IORegistrySetOSBuildVersion(char * build_version);
-
-static void
-loadavg32to64(struct loadavg *la32, struct user_loadavg *la64)
-{
- la64->ldavg[0] = la32->ldavg[0];
- la64->ldavg[1] = la32->ldavg[1];
- la64->ldavg[2] = la32->ldavg[2];
- la64->fscale = (user_long_t)la32->fscale;
-}
+#if HYPERVISOR
+#include <kern/hv_support.h>
+#endif
/*
- * Locking and stats
+ * deliberately setting max requests to really high number
+ * so that runaway settings do not cause MALLOC overflows
*/
-static struct sysctl_lock memlock;
+#define AIO_MAX_REQUESTS (128 * CONFIG_AIO_MAX)
-/* sysctl() syscall */
-int
-__sysctl(proc_t p, struct __sysctl_args *uap, register_t *retval)
-{
- boolean_t funnel_state;
- int error;
+extern int aio_max_requests;
+extern int aio_max_requests_per_process;
+extern int aio_worker_threads;
+extern int lowpri_IO_window_msecs;
+extern int lowpri_IO_delay_msecs;
+#if DEVELOPMENT || DEBUG
+extern int nx_enabled;
+#endif
+extern int speculative_reads_disabled;
+extern unsigned int speculative_prefetch_max;
+extern unsigned int speculative_prefetch_max_iosize;
+extern unsigned int preheat_max_bytes;
+extern unsigned int preheat_min_bytes;
+extern long numvnodes;
+extern long num_recycledvnodes;
- funnel_state = thread_funnel_set(kernel_flock, TRUE);
- error = __sysctl_funneled(p, uap, retval);
- thread_funnel_set(kernel_flock, funnel_state);
- return(error);
-}
+extern uuid_string_t bootsessionuuid_string;
-static int
-__sysctl_funneled(proc_t p, struct __sysctl_args *uap, __unused register_t *retval)
-{
- int error, dolock = 1;
- size_t savelen = 0, oldlen = 0, newlen;
- sysctlfn *fnp = NULL;
- int name[CTL_MAXNAME];
- int error1;
- boolean_t memlock_taken = FALSE;
- boolean_t vslock_taken = FALSE;
-#if CONFIG_MACF
- kauth_cred_t my_cred;
-#endif
+extern unsigned int vm_max_delayed_work_limit;
+extern unsigned int vm_max_batch;
- /*
- * all top-level sysctl names are non-terminal
- */
- if (uap->namelen > CTL_MAXNAME || uap->namelen < 2)
- return (EINVAL);
- error = copyin(uap->name, &name[0], uap->namelen * sizeof(int));
- if (error)
- return (error);
-
- AUDIT_ARG(ctlname, name, uap->namelen);
+extern unsigned int vm_page_free_min;
+extern unsigned int vm_page_free_target;
+extern unsigned int vm_page_free_reserved;
- if (proc_is64bit(p)) {
- /* uap->newlen is a size_t value which grows to 64 bits
- * when coming from a 64-bit process. since it's doubtful we'll
- * have a sysctl newp buffer greater than 4GB we shrink it to size_t
- */
- newlen = CAST_DOWN(size_t, uap->newlen);
- }
- else {
- newlen = uap->newlen;
- }
+#if (DEVELOPMENT || DEBUG)
+extern uint32_t vm_page_creation_throttled_hard;
+extern uint32_t vm_page_creation_throttled_soft;
+#endif /* DEVELOPMENT || DEBUG */
- /* CTL_UNSPEC is used to get oid to AUTO_OID */
- if (uap->new != USER_ADDR_NULL
- && ((name[0] == CTL_KERN
- && !(name[1] == KERN_IPC || name[1] == KERN_PANICINFO || name[1] == KERN_PROCDELAYTERM ||
- name[1] == KERN_PROC_LOW_PRI_IO || name[1] == KERN_PROCNAME || name[1] == KERN_RAGEVNODE || name[1] == KERN_CHECKOPENEVT))
- || (name[0] == CTL_HW)
- || (name[0] == CTL_VM))
- && (error = suser(kauth_cred_get(), &p->p_acflag)))
- return (error);
+#if CONFIG_LOCKERBOOT
+extern const char kernel_protoboot_mount[];
+#endif
-/* XXX: KERN, VFS and DEBUG are handled by their respective functions,
- * but there is a fallback for all sysctls other than VFS to
- * userland_sysctl() - KILL THIS! */
- switch (name[0]) {
- case CTL_KERN:
- fnp = kern_sysctl;
- if ((name[1] != KERN_VNODE) && (name[1] != KERN_FILE)
- && (name[1] != KERN_PROC))
- dolock = 0;
- break;
- case CTL_VFS:
- fnp = vfs_sysctl;
- break;
-#ifdef DEBUG
- case CTL_DEBUG:
- fnp = debug_sysctl;
- break;
+/*
+ * Conditionally allow dtrace to see these functions for debugging purposes.
+ */
+#ifdef STATIC
+#undef STATIC
+#endif
+#if 0
+#define STATIC
+#else
+#define STATIC static
#endif
- default:
- fnp = NULL;
- }
- if (uap->oldlenp != USER_ADDR_NULL) {
- uint64_t oldlen64 = fuulong(uap->oldlenp);
+extern boolean_t mach_timer_coalescing_enabled;
- oldlen = CAST_DOWN(size_t, oldlen64);
- /*
- * If more than 4G, clamp to 4G - useracc() below will catch
- * with an EFAULT, if it's actually necessary.
- */
- if (oldlen64 > 0x00000000ffffffffULL)
- oldlen = 0xffffffffUL;
- }
+extern uint64_t timer_deadline_tracking_bin_1, timer_deadline_tracking_bin_2;
- if (uap->old != USER_ADDR_NULL) {
- if (!useracc(uap->old, (user_size_t)oldlen, B_WRITE))
- return (EFAULT);
- /*
- * The kernel debug mechanism does not need to take this lock, and
- * we don't grab the memlock around calls to KERN_PROC because it is reentrant.
- * Grabbing the lock for a KERN_PROC sysctl makes a deadlock possible 5024049.
- */
- if (!((name[1] == KERN_KDEBUG) && (name[2] == KERN_KDGETENTROPY)) &&
- !(name[1] == KERN_PROC)) {
- MEMLOCK_LOCK();
- memlock_taken = TRUE;
- }
-
- if (dolock && oldlen) {
- if ((error = vslock(uap->old, (user_size_t)oldlen))) {
- if (memlock_taken == TRUE)
- MEMLOCK_UNLOCK();
- return(error);
- }
- savelen = oldlen;
- vslock_taken = TRUE;
- }
- }
+STATIC void
+fill_user32_eproc(proc_t, struct user32_eproc *__restrict);
+STATIC void
+fill_user32_externproc(proc_t, struct user32_extern_proc *__restrict);
+STATIC void
+fill_user64_eproc(proc_t, struct user64_eproc *__restrict);
+STATIC void
+fill_user64_proc(proc_t, struct user64_kinfo_proc *__restrict);
+STATIC void
+fill_user64_externproc(proc_t, struct user64_extern_proc *__restrict);
+STATIC void
+fill_user32_proc(proc_t, struct user32_kinfo_proc *__restrict);
-#if CONFIG_MACF
- my_cred = kauth_cred_proc_ref(p);
- error = mac_system_check_sysctl(
- my_cred,
- (int *) name,
- uap->namelen,
- uap->old,
- uap->oldlenp,
- fnp == kern_sysctl ? 1 : 0,
- uap->new,
- newlen
- );
- kauth_cred_unref(&my_cred);
- if (!error) {
-#endif
- if (fnp) {
- error = (*fnp)(name + 1, uap->namelen - 1, uap->old,
- &oldlen, uap->new, newlen, p);
- }
- else
- error = ENOTSUP;
-#if CONFIG_MACF
- }
+extern int
+kdbg_control(int *name, u_int namelen, user_addr_t where, size_t * sizep);
+#if CONFIG_NFS_CLIENT
+extern int
+netboot_root(void);
#endif
+int
+sysctl_procargs(int *name, u_int namelen, user_addr_t where,
+ size_t *sizep, proc_t cur_proc);
+STATIC int
+sysctl_procargsx(int *name, u_int namelen, user_addr_t where, size_t *sizep,
+ proc_t cur_proc, int argc_yes);
+int
+sysctl_struct(user_addr_t oldp, size_t *oldlenp, user_addr_t newp,
+ size_t newlen, void *sp, int len);
+
+STATIC int sysdoproc_filt_KERN_PROC_PID(proc_t p, void * arg);
+STATIC int sysdoproc_filt_KERN_PROC_PGRP(proc_t p, void * arg);
+STATIC int sysdoproc_filt_KERN_PROC_TTY(proc_t p, void * arg);
+STATIC int sysdoproc_filt_KERN_PROC_UID(proc_t p, void * arg);
+STATIC int sysdoproc_filt_KERN_PROC_RUID(proc_t p, void * arg);
+int sysdoproc_callback(proc_t p, void *arg);
- if (vslock_taken == TRUE) {
- error1 = vsunlock(uap->old, (user_size_t)savelen, B_WRITE);
- if (!error)
- error = error1;
- }
- if (memlock_taken == TRUE)
- MEMLOCK_UNLOCK();
-
- if ( (name[0] != CTL_VFS) && (error == ENOTSUP)) {
- size_t tmp = oldlen;
- boolean_t funnel_state;
-
- /*
- * Drop the funnel when calling new sysctl code, which will conditionally
- * grab the funnel if it really needs to.
- */
- funnel_state = thread_funnel_set(kernel_flock, FALSE);
-
- error = userland_sysctl(p, name, uap->namelen, uap->old, &tmp,
- 1, uap->new, newlen, &oldlen);
- thread_funnel_set(kernel_flock, funnel_state);
- }
+/* forward declarations for non-static STATIC */
+STATIC void fill_loadavg64(struct loadavg *la, struct user64_loadavg *la64);
+STATIC void fill_loadavg32(struct loadavg *la, struct user32_loadavg *la32);
+STATIC int sysctl_handle_kern_threadname(struct sysctl_oid *oidp, void *arg1, int arg2, struct sysctl_req *req);
+STATIC int sysctl_sched_stats(struct sysctl_oid *oidp, void *arg1, int arg2, struct sysctl_req *req);
+STATIC int sysctl_sched_stats_enable(struct sysctl_oid *oidp, void *arg1, int arg2, struct sysctl_req *req);
+STATIC int sysctl_kdebug_ops SYSCTL_HANDLER_ARGS;
+#if COUNT_SYSCALLS
+STATIC int sysctl_docountsyscalls SYSCTL_HANDLER_ARGS;
+#endif /* COUNT_SYSCALLS */
+#if !CONFIG_EMBEDDED
+STATIC int sysctl_doprocargs SYSCTL_HANDLER_ARGS;
+#endif /* !CONFIG_EMBEDDED */
+STATIC int sysctl_doprocargs2 SYSCTL_HANDLER_ARGS;
+STATIC int sysctl_prochandle SYSCTL_HANDLER_ARGS;
+STATIC int sysctl_aiomax(struct sysctl_oid *oidp, void *arg1, int arg2, struct sysctl_req *req);
+STATIC int sysctl_aioprocmax(struct sysctl_oid *oidp, void *arg1, int arg2, struct sysctl_req *req);
+STATIC int sysctl_aiothreads(struct sysctl_oid *oidp, void *arg1, int arg2, struct sysctl_req *req);
+STATIC int sysctl_maxproc(struct sysctl_oid *oidp, void *arg1, int arg2, struct sysctl_req *req);
+STATIC int sysctl_osversion(struct sysctl_oid *oidp, void *arg1, int arg2, struct sysctl_req *req);
+STATIC int sysctl_sysctl_bootargs(struct sysctl_oid *oidp, void *arg1, int arg2, struct sysctl_req *req);
+STATIC int sysctl_maxvnodes(struct sysctl_oid *oidp, void *arg1, int arg2, struct sysctl_req *req);
+STATIC int sysctl_securelvl(struct sysctl_oid *oidp, void *arg1, int arg2, struct sysctl_req *req);
+STATIC int sysctl_domainname(struct sysctl_oid *oidp, void *arg1, int arg2, struct sysctl_req *req);
+STATIC int sysctl_hostname(struct sysctl_oid *oidp, void *arg1, int arg2, struct sysctl_req *req);
+STATIC int sysctl_procname(struct sysctl_oid *oidp, void *arg1, int arg2, struct sysctl_req *req);
+STATIC int sysctl_boottime(struct sysctl_oid *oidp, void *arg1, int arg2, struct sysctl_req *req);
+STATIC int sysctl_symfile(struct sysctl_oid *oidp, void *arg1, int arg2, struct sysctl_req *req);
+#if CONFIG_NFS_CLIENT
+STATIC int sysctl_netboot(struct sysctl_oid *oidp, void *arg1, int arg2, struct sysctl_req *req);
+#endif
+#ifdef CONFIG_IMGSRC_ACCESS
+STATIC int sysctl_imgsrcdev(struct sysctl_oid *oidp, void *arg1, int arg2, struct sysctl_req *req);
+#endif
+STATIC int sysctl_usrstack(struct sysctl_oid *oidp, void *arg1, int arg2, struct sysctl_req *req);
+STATIC int sysctl_usrstack64(struct sysctl_oid *oidp, void *arg1, int arg2, struct sysctl_req *req);
+#if CONFIG_COREDUMP
+STATIC int sysctl_coredump(struct sysctl_oid *oidp, void *arg1, int arg2, struct sysctl_req *req);
+STATIC int sysctl_suid_coredump(struct sysctl_oid *oidp, void *arg1, int arg2, struct sysctl_req *req);
+#endif
+STATIC int sysctl_delayterm(struct sysctl_oid *oidp, void *arg1, int arg2, struct sysctl_req *req);
+STATIC int sysctl_rage_vnode(struct sysctl_oid *oidp, void *arg1, int arg2, struct sysctl_req *req);
+STATIC int sysctl_kern_check_openevt(struct sysctl_oid *oidp, void *arg1, int arg2, struct sysctl_req *req);
+#if DEVELOPMENT || DEBUG
+STATIC int sysctl_nx(struct sysctl_oid *oidp, void *arg1, int arg2, struct sysctl_req *req);
+#endif
+STATIC int sysctl_loadavg(struct sysctl_oid *oidp, void *arg1, int arg2, struct sysctl_req *req);
+STATIC int sysctl_vm_toggle_address_reuse(struct sysctl_oid *oidp, void *arg1, int arg2, struct sysctl_req *req);
+STATIC int sysctl_swapusage(struct sysctl_oid *oidp, void *arg1, int arg2, struct sysctl_req *req);
+STATIC int fetch_process_cputype( proc_t cur_proc, int *name, u_int namelen, cpu_type_t *cputype);
+STATIC int sysctl_sysctl_native(struct sysctl_oid *oidp, void *arg1, int arg2, struct sysctl_req *req);
+STATIC int sysctl_sysctl_cputype(struct sysctl_oid *oidp, void *arg1, int arg2, struct sysctl_req *req);
+STATIC int sysctl_safeboot(struct sysctl_oid *oidp, void *arg1, int arg2, struct sysctl_req *req);
+STATIC int sysctl_singleuser(struct sysctl_oid *oidp, void *arg1, int arg2, struct sysctl_req *req);
+STATIC int sysctl_minimalboot(struct sysctl_oid *oidp, void *arg1, int arg2, struct sysctl_req *req);
+STATIC int sysctl_slide(struct sysctl_oid *oidp, void *arg1, int arg2, struct sysctl_req *req);
+
+#ifdef CONFIG_XNUPOST
+#include <tests/xnupost.h>
+
+STATIC int sysctl_debug_test_oslog_ctl(struct sysctl_oid *oidp, void *arg1, int arg2, struct sysctl_req *req);
+STATIC int sysctl_debug_test_stackshot_mutex_owner(struct sysctl_oid *oidp, void *arg1, int arg2, struct sysctl_req *req);
+STATIC int sysctl_debug_test_stackshot_rwlck_owner(struct sysctl_oid *oidp, void *arg1, int arg2, struct sysctl_req *req);
+#endif
- if ((error) && (error != ENOMEM))
- return (error);
+extern void IORegistrySetOSBuildVersion(char * build_version);
- if (uap->oldlenp != USER_ADDR_NULL)
- error = suulong(uap->oldlenp, oldlen);
+STATIC void
+fill_loadavg64(struct loadavg *la, struct user64_loadavg *la64)
+{
+ la64->ldavg[0] = la->ldavg[0];
+ la64->ldavg[1] = la->ldavg[1];
+ la64->ldavg[2] = la->ldavg[2];
+ la64->fscale = (user64_long_t)la->fscale;
+}
- return (error);
+STATIC void
+fill_loadavg32(struct loadavg *la, struct user32_loadavg *la32)
+{
+ la32->ldavg[0] = la->ldavg[0];
+ la32->ldavg[1] = la->ldavg[1];
+ la32->ldavg[2] = la->ldavg[2];
+ la32->fscale = (user32_long_t)la->fscale;
}
+#if CONFIG_COREDUMP
/*
* Attributes stored in the kernel.
*/
-__private_extern__ char corefilename[MAXPATHLEN+1];
-__private_extern__ int do_coredump;
-__private_extern__ int sugid_coredump;
+extern char corefilename[MAXPATHLEN + 1];
+extern int do_coredump;
+extern int sugid_coredump;
+#endif
#if COUNT_SYSCALLS
-__private_extern__ int do_count_syscalls;
+extern int do_count_syscalls;
#endif
#ifdef INSECURE
int securelevel;
#endif
-static int
-sysctl_affinity(
- int *name,
- u_int namelen,
- user_addr_t oldBuf,
- size_t *oldSize,
- user_addr_t newBuf,
- __unused size_t newSize,
- proc_t cur_proc)
-{
- if (namelen < 1)
- return (ENOTSUP);
-
- if (name[0] == 0 && 1 == namelen) {
- return sysctl_rdint(oldBuf, oldSize, newBuf,
- (cur_proc->p_flag & P_AFFINITY) ? 1 : 0);
- } else if (name[0] == 1 && 2 == namelen) {
- if (name[1] == 0) {
- OSBitAndAtomic(~((uint32_t)P_AFFINITY), (UInt32 *)&cur_proc->p_flag);
+STATIC int
+sysctl_handle_kern_threadname( __unused struct sysctl_oid *oidp, __unused void *arg1,
+ __unused int arg2, struct sysctl_req *req)
+{
+ int error;
+ struct uthread *ut = get_bsdthread_info(current_thread());
+ user_addr_t oldp = 0, newp = 0;
+ size_t *oldlenp = NULL;
+ size_t newlen = 0;
+
+ oldp = req->oldptr;
+ oldlenp = &(req->oldlen);
+ newp = req->newptr;
+ newlen = req->newlen;
+
+ /* We want the current length, and maybe the string itself */
+ if (oldlenp) {
+ /* if we have no thread name yet tell'em we want MAXTHREADNAMESIZE - 1 */
+ size_t currlen = MAXTHREADNAMESIZE - 1;
+
+ if (ut->pth_name) {
+ /* use length of current thread name */
+ currlen = strlen(ut->pth_name);
+ }
+ if (oldp) {
+ if (*oldlenp < currlen) {
+ return ENOMEM;
+ }
+ /* NOTE - we do not copy the NULL terminator */
+ if (ut->pth_name) {
+ error = copyout(ut->pth_name, oldp, currlen);
+ if (error) {
+ return error;
+ }
+ }
+ }
+ /* return length of thread name minus NULL terminator (just like strlen) */
+ req->oldidx = currlen;
+ }
+
+ /* We want to set the name to something */
+ if (newp) {
+ if (newlen > (MAXTHREADNAMESIZE - 1)) {
+ return ENAMETOOLONG;
+ }
+ if (!ut->pth_name) {
+ char *tmp_pth_name = (char *)kalloc(MAXTHREADNAMESIZE);
+ if (!tmp_pth_name) {
+ return ENOMEM;
+ }
+ bzero(tmp_pth_name, MAXTHREADNAMESIZE);
+ if (!OSCompareAndSwapPtr(NULL, tmp_pth_name, &ut->pth_name)) {
+ kfree(tmp_pth_name, MAXTHREADNAMESIZE);
+ return EBUSY;
+ }
} else {
- OSBitOrAtomic(P_AFFINITY, (UInt32 *)&cur_proc->p_flag);
+ kernel_debug_string_simple(TRACE_STRING_THREADNAME_PREV, ut->pth_name);
+ bzero(ut->pth_name, MAXTHREADNAMESIZE);
}
- return 0;
+ error = copyin(newp, ut->pth_name, newlen);
+ if (error) {
+ return error;
+ }
+
+ kernel_debug_string_simple(TRACE_STRING_THREADNAME, ut->pth_name);
}
- return (ENOTSUP);
+
+ return 0;
}
-static int
-sysctl_translate(
- int *name,
- u_int namelen,
- user_addr_t oldBuf,
- size_t *oldSize,
- user_addr_t newBuf,
- __unused size_t newSize,
- proc_t cur_proc)
+SYSCTL_PROC(_kern, KERN_THREADNAME, threadname, CTLFLAG_ANYBODY | CTLTYPE_STRING | CTLFLAG_RW | CTLFLAG_LOCKED, 0, 0, sysctl_handle_kern_threadname, "A", "");
+
+#define BSD_HOST 1
+STATIC int
+sysctl_sched_stats(__unused struct sysctl_oid *oidp, __unused void *arg1, __unused int arg2, struct sysctl_req *req)
{
- proc_t p;
- int istranslated = 0;
- kauth_cred_t my_cred;
- uid_t uid;
+ host_basic_info_data_t hinfo;
+ kern_return_t kret;
+ uint32_t size;
+ int changed;
+ mach_msg_type_number_t count = HOST_BASIC_INFO_COUNT;
+ struct _processor_statistics_np *buf;
+ int error;
- if (namelen != 1)
- return (ENOTSUP);
+ kret = host_info((host_t)BSD_HOST, HOST_BASIC_INFO, (host_info_t)&hinfo, &count);
+ if (kret != KERN_SUCCESS) {
+ return EINVAL;
+ }
- p = proc_find(name[0]);
- if (p == NULL)
- return (EINVAL);
+ size = sizeof(struct _processor_statistics_np) * (hinfo.logical_cpu_max + 2); /* One for RT Queue, One for Fair Share Queue */
- my_cred = kauth_cred_proc_ref(p);
- uid = kauth_cred_getuid(my_cred);
- kauth_cred_unref(&my_cred);
- if ((uid != kauth_cred_getuid(kauth_cred_get()))
- && suser(kauth_cred_get(), &cur_proc->p_acflag)) {
- proc_rele(p);
- return (EPERM);
+ if (req->oldlen < size) {
+ return EINVAL;
}
- istranslated = (p->p_flag & P_TRANSLATED);
- proc_rele(p);
- return sysctl_rdint(oldBuf, oldSize, newBuf,
- (istranslated != 0) ? 1 : 0);
-}
+ MALLOC(buf, struct _processor_statistics_np*, size, M_TEMP, M_ZERO | M_WAITOK);
-int
-set_archhandler(__unused proc_t p, int arch)
-{
- int error;
- struct nameidata nd;
- struct vnode_attr va;
- vfs_context_t ctx = vfs_context_current();
- struct exec_archhandler *archhandler;
+ kret = get_sched_statistics(buf, &size);
+ if (kret != KERN_SUCCESS) {
+ error = EINVAL;
+ goto out;
+ }
- switch(arch) {
- case CPU_TYPE_POWERPC:
- archhandler = &exec_archhandler_ppc;
- break;
- default:
- return (EBADARCH);
- }
-
- NDINIT(&nd, LOOKUP, FOLLOW | LOCKLEAF, UIO_SYSSPACE32,
- CAST_USER_ADDR_T(archhandler->path), ctx);
- error = namei(&nd);
- if (error)
- return (error);
- nameidone(&nd);
-
- /* Check mount point */
- if ((nd.ni_vp->v_mount->mnt_flag & MNT_NOEXEC) ||
- (nd.ni_vp->v_type != VREG)) {
- vnode_put(nd.ni_vp);
- return (EACCES);
- }
-
- VATTR_INIT(&va);
- VATTR_WANTED(&va, va_fsid);
- VATTR_WANTED(&va, va_fileid);
- error = vnode_getattr(nd.ni_vp, &va, ctx);
+ error = sysctl_io_opaque(req, buf, size, &changed);
if (error) {
- vnode_put(nd.ni_vp);
- return (error);
+ goto out;
}
- vnode_put(nd.ni_vp);
-
- archhandler->fsid = va.va_fsid;
- archhandler->fileid = (u_long)va.va_fileid;
- return 0;
+
+ if (changed) {
+ panic("Sched info changed?!");
+ }
+out:
+ FREE(buf, M_TEMP);
+ return error;
}
-/* XXX remove once Rosetta is rev'ed */
-/*****************************************************************************/
-static int
-sysctl_exec_archhandler_ppc(
- __unused int *name,
- __unused u_int namelen,
- user_addr_t oldBuf,
- size_t *oldSize,
- user_addr_t newBuf,
- size_t newSize,
- proc_t p)
+SYSCTL_PROC(_kern, OID_AUTO, sched_stats, CTLFLAG_LOCKED, 0, 0, sysctl_sched_stats, "-", "");
+
+STATIC int
+sysctl_sched_stats_enable(__unused struct sysctl_oid *oidp, __unused void *arg1, __unused int arg2, __unused struct sysctl_req *req)
{
- int error;
- size_t len;
- char handler[sizeof(exec_archhandler_ppc.path)];
- vfs_context_t ctx = vfs_context_current();
+ boolean_t active;
+ int res;
- if (oldSize) {
- len = strlen(exec_archhandler_ppc.path) + 1;
- if (oldBuf) {
- if (*oldSize < len)
- return (ENOMEM);
- error = copyout(exec_archhandler_ppc.path, oldBuf, len);
- if (error)
- return (error);
- }
- *oldSize = len - 1;
- }
- if (newBuf) {
- error = suser(vfs_context_ucred(ctx), &p->p_acflag);
- if (error)
- return (error);
- if (newSize >= sizeof(exec_archhandler_ppc.path))
- return (ENAMETOOLONG);
- error = copyin(newBuf, handler, newSize);
- if (error)
- return (error);
- handler[newSize] = 0;
- strlcpy(exec_archhandler_ppc.path, handler, MAXPATHLEN);
- error = set_archhandler(p, CPU_TYPE_POWERPC);
- if (error)
- return (error);
+ if (req->newlen != sizeof(active)) {
+ return EINVAL;
}
- return 0;
-}
-/*****************************************************************************/
-static int
-sysctl_handle_exec_archhandler_ppc(struct sysctl_oid *oidp, void *arg1,
- int arg2, struct sysctl_req *req)
-{
- int error = 0;
+ res = copyin(req->newptr, &active, sizeof(active));
+ if (res != 0) {
+ return res;
+ }
- error = sysctl_handle_string(oidp, arg1, arg2, req);
+ return set_sched_stats_active(active);
+}
- if (error)
- goto done;
+SYSCTL_PROC(_kern, OID_AUTO, sched_stats_enable, CTLFLAG_LOCKED | CTLFLAG_WR, 0, 0, sysctl_sched_stats_enable, "-", "");
- if (req->newptr)
- error = set_archhandler(req->p, CPU_TYPE_POWERPC);
+extern uint32_t sched_debug_flags;
+SYSCTL_INT(_debug, OID_AUTO, sched, CTLFLAG_RW | CTLFLAG_LOCKED, &sched_debug_flags, 0, "scheduler debug");
-done:
- return error;
+#if (DEBUG || DEVELOPMENT)
+extern boolean_t doprnt_hide_pointers;
+SYSCTL_INT(_debug, OID_AUTO, hide_kernel_pointers, CTLFLAG_RW | CTLFLAG_LOCKED, &doprnt_hide_pointers, 0, "hide kernel pointers from log");
+#endif
-}
+extern int get_kernel_symfile(proc_t, char **);
-SYSCTL_NODE(_kern, KERN_EXEC, exec, CTLFLAG_RD|CTLFLAG_LOCKED, 0, "");
+#if COUNT_SYSCALLS
+#define KERN_COUNT_SYSCALLS (KERN_OSTYPE + 1000)
-SYSCTL_NODE(_kern_exec, OID_AUTO, archhandler, CTLFLAG_RD|CTLFLAG_LOCKED, 0, "");
+extern const unsigned int nsysent;
+extern int syscalls_log[];
+extern const char *syscallnames[];
-SYSCTL_PROC(_kern_exec_archhandler, OID_AUTO, powerpc,
- CTLTYPE_STRING | CTLFLAG_RW, exec_archhandler_ppc.path, 0,
- sysctl_handle_exec_archhandler_ppc, "A", "");
+STATIC int
+sysctl_docountsyscalls SYSCTL_HANDLER_ARGS
+{
+ __unused int cmd = oidp->oid_arg2; /* subcommand*/
+ __unused int *name = arg1; /* oid element argument vector */
+ __unused int namelen = arg2; /* number of oid element arguments */
+ user_addr_t oldp = req->oldptr; /* user buffer copy out address */
+ size_t *oldlenp = &req->oldlen; /* user buffer copy out size */
+ user_addr_t newp = req->newptr; /* user buffer copy in address */
+ size_t newlen = req->newlen; /* user buffer copy in size */
+ int error;
-extern int get_kernel_symfile(proc_t, char **);
-__private_extern__ int
-sysctl_dopanicinfo(int *, u_int, user_addr_t, size_t *, user_addr_t,
- size_t, proc_t);
+ int tmp;
-/*
- * kernel related system variables.
- */
-int
-kern_sysctl(int *name, u_int namelen, user_addr_t oldp, size_t *oldlenp,
- user_addr_t newp, size_t newlen, proc_t p)
-{
- /* all sysctl names not listed below are terminal at this level */
- if (namelen != 1
- && !(name[0] == KERN_PROC
- || name[0] == KERN_PROF
- || name[0] == KERN_KDEBUG
-#if !CONFIG_EMBEDDED
- || name[0] == KERN_PROCARGS
-#endif
- || name[0] == KERN_PROCARGS2
- || name[0] == KERN_IPC
- || name[0] == KERN_SYSV
- || name[0] == KERN_AFFINITY
- || name[0] == KERN_TRANSLATE
- || name[0] == KERN_EXEC
- || name[0] == KERN_PANICINFO
- || name[0] == KERN_POSIX
- || name[0] == KERN_TFP
- || name[0] == KERN_TTY
-#if CONFIG_LCTX
- || name[0] == KERN_LCTX
-#endif
- )
- )
- return (ENOTDIR); /* overloaded */
+ /* valid values passed in:
+ * = 0 means don't keep called counts for each bsd syscall
+ * > 0 means keep called counts for each bsd syscall
+ * = 2 means dump current counts to the system log
+ * = 3 means reset all counts
+ * for example, to dump current counts:
+ * sysctl -w kern.count_calls=2
+ */
+ error = sysctl_int(oldp, oldlenp, newp, newlen, &tmp);
+ if (error != 0) {
+ return error;
+ }
- switch (name[0]) {
- case KERN_PROC:
- return (sysctl_doproc(name + 1, namelen - 1, oldp, oldlenp));
-#ifdef GPROF
- case KERN_PROF:
- return (sysctl_doprof(name + 1, namelen - 1, oldp, oldlenp,
- newp, newlen));
-#endif
- case KERN_KDEBUG:
- return (kdebug_ops(name + 1, namelen - 1, oldp, oldlenp, p));
-#if !CONFIG_EMBEDDED
- case KERN_PROCARGS:
- /* new one as it does not use kinfo_proc */
- return (sysctl_procargs(name + 1, namelen - 1, oldp, oldlenp, p));
-#endif
- case KERN_PROCARGS2:
- /* new one as it does not use kinfo_proc */
- return (sysctl_procargs2(name + 1, namelen - 1, oldp, oldlenp, p));
-#if PANIC_INFO
- case KERN_PANICINFO:
- return(sysctl_dopanicinfo(name + 1, namelen - 1, oldp, oldlenp,
- newp, newlen, p));
-#endif
- case KERN_AFFINITY:
- return sysctl_affinity(name+1, namelen-1, oldp, oldlenp,
- newp, newlen, p);
- case KERN_TRANSLATE:
- return sysctl_translate(name+1, namelen-1, oldp, oldlenp, newp,
- newlen, p);
-
- /* XXX remove once Rosetta has rev'ed */
- case KERN_EXEC:
- return sysctl_exec_archhandler_ppc(name+1, namelen-1, oldp,
- oldlenp, newp, newlen, p);
-#if COUNT_SYSCALLS
- case KERN_COUNT_SYSCALLS:
- {
- /* valid values passed in:
- * = 0 means don't keep called counts for each bsd syscall
- * > 0 means keep called counts for each bsd syscall
- * = 2 means dump current counts to the system log
- * = 3 means reset all counts
- * for example, to dump current counts:
- * sysctl -w kern.count_calls=2
- */
- error = sysctl_int(oldp, oldlenp, newp, newlen, &tmp);
- if ( error != 0 ) {
- return (error);
- }
-
- if ( tmp == 1 ) {
- do_count_syscalls = 1;
- }
- else if ( tmp == 0 || tmp == 2 || tmp == 3 ) {
- extern int nsysent;
- extern int syscalls_log[];
- extern const char * syscallnames[];
- int i;
- for ( i = 0; i < nsysent; i++ ) {
- if ( syscalls_log[i] != 0 ) {
- if ( tmp == 2 ) {
- printf("%d calls - name %s \n", syscalls_log[i], syscallnames[i]);
- }
- else {
- syscalls_log[i] = 0;
- }
+ if (tmp == 1) {
+ do_count_syscalls = 1;
+ } else if (tmp == 0 || tmp == 2 || tmp == 3) {
+ int i;
+ for (i = 0; i < nsysent; i++) {
+ if (syscalls_log[i] != 0) {
+ if (tmp == 2) {
+ printf("%d calls - name %s \n", syscalls_log[i], syscallnames[i]);
+ } else {
+ syscalls_log[i] = 0;
}
}
- if ( tmp != 0 ) {
- do_count_syscalls = 1;
- }
}
- return (0);
- }
-#endif
- default:
- return (ENOTSUP);
+ if (tmp != 0) {
+ do_count_syscalls = 1;
+ }
}
- /* NOTREACHED */
-}
-#ifdef DEBUG
-/*
- * Debugging related system variables.
- */
-#if DIAGNOSTIC
-extern
-#endif /* DIAGNOSTIC */
-struct ctldebug debug0, debug1;
-struct ctldebug debug2, debug3, debug4;
-struct ctldebug debug5, debug6, debug7, debug8, debug9;
-struct ctldebug debug10, debug11, debug12, debug13, debug14;
-struct ctldebug debug15, debug16, debug17, debug18, debug19;
-static struct ctldebug *debugvars[CTL_DEBUG_MAXID] = {
- &debug0, &debug1, &debug2, &debug3, &debug4,
- &debug5, &debug6, &debug7, &debug8, &debug9,
- &debug10, &debug11, &debug12, &debug13, &debug14,
- &debug15, &debug16, &debug17, &debug18, &debug19,
-};
-int
-debug_sysctl(int *name, u_int namelen, user_addr_t oldp, size_t *oldlenp,
- user_addr_t newp, size_t newlen, __unused proc_t p)
-{
- struct ctldebug *cdp;
-
- /* all sysctl names at this level are name and field */
- if (namelen != 2)
- return (ENOTDIR); /* overloaded */
- if (name[0] < 0 || name[0] >= CTL_DEBUG_MAXID)
- return (ENOTSUP);
- cdp = debugvars[name[0]];
- if (cdp->debugname == 0)
- return (ENOTSUP);
- switch (name[1]) {
- case CTL_DEBUG_NAME:
- return (sysctl_rdstring(oldp, oldlenp, newp, cdp->debugname));
- case CTL_DEBUG_VALUE:
- return (sysctl_int(oldp, oldlenp, newp, newlen, cdp->debugvar));
- default:
- return (ENOTSUP);
+ /* adjust index so we return the right required/consumed amount */
+ if (!error) {
+ req->oldidx += req->oldlen;
}
- /* NOTREACHED */
+
+ return error;
}
-#endif /* DEBUG */
+SYSCTL_PROC(_kern, KERN_COUNT_SYSCALLS, count_syscalls, CTLTYPE_NODE | CTLFLAG_RD | CTLFLAG_LOCKED,
+ 0, /* Pointer argument (arg1) */
+ 0, /* Integer argument (arg2) */
+ sysctl_docountsyscalls, /* Handler function */
+ NULL, /* Data pointer */
+ "");
+#endif /* COUNT_SYSCALLS */
/*
* The following sysctl_* functions should not be used
* for an integer-valued sysctl function.
*/
int
-sysctl_int(user_addr_t oldp, size_t *oldlenp,
- user_addr_t newp, size_t newlen, int *valp)
+sysctl_int(user_addr_t oldp, size_t *oldlenp,
+ user_addr_t newp, size_t newlen, int *valp)
{
int error = 0;
- if (oldp != USER_ADDR_NULL && oldlenp == NULL)
- return (EFAULT);
- if (oldp && *oldlenp < sizeof(int))
- return (ENOMEM);
- if (newp && newlen != sizeof(int))
- return (EINVAL);
+ if (oldp != USER_ADDR_NULL && oldlenp == NULL) {
+ return EFAULT;
+ }
+ if (oldp && *oldlenp < sizeof(int)) {
+ return ENOMEM;
+ }
+ if (newp && newlen != sizeof(int)) {
+ return EINVAL;
+ }
*oldlenp = sizeof(int);
- if (oldp)
+ if (oldp) {
error = copyout(valp, oldp, sizeof(int));
+ }
if (error == 0 && newp) {
error = copyin(newp, valp, sizeof(int));
- AUDIT_ARG(value, *valp);
+ AUDIT_ARG(value32, *valp);
}
- return (error);
-}
-
-/*
- * As above, but read-only.
- */
-int
-sysctl_rdint(user_addr_t oldp, size_t *oldlenp, user_addr_t newp, int val)
-{
- int error = 0;
-
- if (oldp != USER_ADDR_NULL && oldlenp == NULL)
- return (EFAULT);
- if (oldp && *oldlenp < sizeof(int))
- return (ENOMEM);
- if (newp)
- return (EPERM);
- *oldlenp = sizeof(int);
- if (oldp)
- error = copyout((caddr_t)&val, oldp, sizeof(int));
- return (error);
+ return error;
}
/*
* for an quad(64bit)-valued sysctl function.
*/
int
-sysctl_quad(user_addr_t oldp, size_t *oldlenp,
- user_addr_t newp, size_t newlen, quad_t *valp)
+sysctl_quad(user_addr_t oldp, size_t *oldlenp,
+ user_addr_t newp, size_t newlen, quad_t *valp)
{
int error = 0;
- if (oldp != USER_ADDR_NULL && oldlenp == NULL)
- return (EFAULT);
- if (oldp && *oldlenp < sizeof(quad_t))
- return (ENOMEM);
- if (newp && newlen != sizeof(quad_t))
- return (EINVAL);
+ if (oldp != USER_ADDR_NULL && oldlenp == NULL) {
+ return EFAULT;
+ }
+ if (oldp && *oldlenp < sizeof(quad_t)) {
+ return ENOMEM;
+ }
+ if (newp && newlen != sizeof(quad_t)) {
+ return EINVAL;
+ }
*oldlenp = sizeof(quad_t);
- if (oldp)
+ if (oldp) {
error = copyout(valp, oldp, sizeof(quad_t));
- if (error == 0 && newp)
+ }
+ if (error == 0 && newp) {
error = copyin(newp, valp, sizeof(quad_t));
- return (error);
+ }
+ return error;
}
-/*
- * As above, but read-only.
- */
-int
-sysctl_rdquad(user_addr_t oldp, size_t *oldlenp, user_addr_t newp, quad_t val)
+STATIC int
+sysdoproc_filt_KERN_PROC_PID(proc_t p, void * arg)
{
- int error = 0;
-
- if (oldp != USER_ADDR_NULL && oldlenp == NULL)
- return (EFAULT);
- if (oldp && *oldlenp < sizeof(quad_t))
- return (ENOMEM);
- if (newp)
- return (EPERM);
- *oldlenp = sizeof(quad_t);
- if (oldp)
- error = copyout((caddr_t)&val, oldp, sizeof(quad_t));
- return (error);
-}
-
-/*
- * Validate parameters and get old / set new parameters
- * for a string-valued sysctl function. Unlike sysctl_string, if you
- * give it a too small (but larger than 0 bytes) buffer, instead of
- * returning ENOMEM, it truncates the returned string to the buffer
- * size. This preserves the semantics of some library routines
- * implemented via sysctl, which truncate their returned data, rather
- * than simply returning an error. The returned string is always NUL
- * terminated.
- */
-int
-sysctl_trstring(user_addr_t oldp, size_t *oldlenp,
- user_addr_t newp, size_t newlen, char *str, int maxlen)
-{
- int len, copylen, error = 0;
-
- if (oldp != USER_ADDR_NULL && oldlenp == NULL)
- return (EFAULT);
- copylen = len = strlen(str) + 1;
- if (oldp && (len < 0 || *oldlenp < 1))
- return (ENOMEM);
- if (oldp && (*oldlenp < (size_t)len))
- copylen = *oldlenp + 1;
- if (newp && (maxlen < 0 || newlen >= (size_t)maxlen))
- return (EINVAL);
- *oldlenp = copylen - 1; /* deal with NULL strings correctly */
- if (oldp) {
- error = copyout(str, oldp, copylen);
- if (!error) {
- unsigned char c = 0;
- /* NUL terminate */
- oldp += *oldlenp;
- error = copyout((void *)&c, oldp, sizeof(char));
- }
- }
- if (error == 0 && newp) {
- error = copyin(newp, str, newlen);
- str[newlen] = 0;
- AUDIT_ARG(text, (char *)str);
+ if (p->p_pid != (pid_t)*(int*)arg) {
+ return 0;
+ } else {
+ return 1;
}
- return (error);
}
-/*
- * Validate parameters and get old / set new parameters
- * for a string-valued sysctl function.
- */
-int
-sysctl_string(user_addr_t oldp, size_t *oldlenp,
- user_addr_t newp, size_t newlen, char *str, int maxlen)
-{
- int len, error = 0;
-
- if (oldp != USER_ADDR_NULL && oldlenp == NULL)
- return (EFAULT);
- len = strlen(str) + 1;
- if (oldp && (len < 0 || *oldlenp < (size_t)len))
- return (ENOMEM);
- if (newp && (maxlen < 0 || newlen >= (size_t)maxlen))
- return (EINVAL);
- *oldlenp = len -1; /* deal with NULL strings correctly */
- if (oldp) {
- error = copyout(str, oldp, len);
- }
- if (error == 0 && newp) {
- error = copyin(newp, str, newlen);
- str[newlen] = 0;
- AUDIT_ARG(text, (char *)str);
+STATIC int
+sysdoproc_filt_KERN_PROC_PGRP(proc_t p, void * arg)
+{
+ if (p->p_pgrpid != (pid_t)*(int*)arg) {
+ return 0;
+ } else {
+ return 1;
}
- return (error);
}
-/*
- * As above, but read-only.
- */
-int
-sysctl_rdstring(user_addr_t oldp, size_t *oldlenp,
- user_addr_t newp, char *str)
-{
- int len, error = 0;
-
- if (oldp != USER_ADDR_NULL && oldlenp == NULL)
- return (EFAULT);
- len = strlen(str) + 1;
- if (oldp && *oldlenp < (size_t)len)
- return (ENOMEM);
- if (newp)
- return (EPERM);
- *oldlenp = len;
- if (oldp)
- error = copyout(str, oldp, len);
- return (error);
-}
-
-/*
- * Validate parameters and get old / set new parameters
- * for a structure oriented sysctl function.
- */
-int
-sysctl_struct(user_addr_t oldp, size_t *oldlenp,
- user_addr_t newp, size_t newlen, void *sp, int len)
-{
- int error = 0;
-
- if (oldp != USER_ADDR_NULL && oldlenp == NULL)
- return (EFAULT);
- if (oldp && (len < 0 || *oldlenp < (size_t)len))
- return (ENOMEM);
- if (newp && (len < 0 || newlen > (size_t)len))
- return (EINVAL);
- if (oldp) {
- *oldlenp = len;
- error = copyout(sp, oldp, len);
- }
- if (error == 0 && newp)
- error = copyin(newp, sp, len);
- return (error);
-}
-
-/*
- * Validate parameters and get old parameters
- * for a structure oriented sysctl function.
- */
-int
-sysctl_rdstruct(user_addr_t oldp, size_t *oldlenp,
- user_addr_t newp, void *sp, int len)
-{
- int error = 0;
-
- if (oldp != USER_ADDR_NULL && oldlenp == NULL)
- return (EFAULT);
- if (oldp && (len < 0 || *oldlenp < (size_t)len))
- return (ENOMEM);
- if (newp)
- return (EPERM);
- *oldlenp = len;
- if (oldp)
- error = copyout(sp, oldp, len);
- return (error);
-}
-
-/*
- * Get file structures.
- */
-static int
-sysctl_file
-(__unused struct sysctl_oid *oidp, __unused void *arg1, __unused int arg2, struct sysctl_req *req)
-{
- int error;
- struct fileglob *fg;
- struct extern_file nef;
-
- if (req->oldptr == USER_ADDR_NULL) {
- /*
- * overestimate by 10 files
- */
- req->oldidx = sizeof(filehead) + (nfiles + 10) * sizeof(struct extern_file);
- return (0);
- }
-
- /*
- * first copyout filehead
- */
- error = SYSCTL_OUT(req, &filehead, sizeof(filehead));
- if (error)
- return (error);
-
- /*
- * followed by an array of file structures
- */
- for (fg = filehead.lh_first; fg != 0; fg = fg->f_list.le_next) {
- nef.f_list.le_next = (struct extern_file *)fg->f_list.le_next;
- nef.f_list.le_prev = (struct extern_file **)fg->f_list.le_prev;
- nef.f_flag = (fg->fg_flag & FMASK);
- nef.f_type = fg->fg_type;
- nef.f_count = fg->fg_count;
- nef.f_msgcount = fg->fg_msgcount;
- nef.f_cred = fg->fg_cred;
- nef.f_ops = fg->fg_ops;
- nef.f_offset = fg->fg_offset;
- nef.f_data = fg->fg_data;
- error = SYSCTL_OUT(req, &nef, sizeof(nef));
- if (error)
- return (error);
- }
- return (0);
-}
-
-SYSCTL_PROC(_kern, KERN_FILE, file,
- CTLTYPE_STRUCT | CTLFLAG_RW,
- 0, 0, sysctl_file, "S,filehead", "");
-
-static int
-sysdoproc_filt_KERN_PROC_PID(proc_t p, void * arg)
-{
- if (p->p_pid != (pid_t)arg)
- return(0);
- else
- return(1);
-}
-
-static int
-sysdoproc_filt_KERN_PROC_PGRP(proc_t p, void * arg)
-{
- if (p->p_pgrpid != (pid_t)arg)
- return(0);
- else
- return(1);
-}
-
-static int
+STATIC int
sysdoproc_filt_KERN_PROC_TTY(proc_t p, void * arg)
{
- boolean_t funnel_state;
int retval;
+ struct tty *tp;
-
- funnel_state = thread_funnel_set(kernel_flock, TRUE);
/* This is very racy but list lock is held.. Hmmm. */
if ((p->p_flag & P_CONTROLT) == 0 ||
- (p->p_pgrp == NULL) || (p->p_pgrp->pg_session == NULL) ||
- p->p_pgrp->pg_session->s_ttyp == NULL ||
- p->p_pgrp->pg_session->s_ttyp->t_dev != (dev_t)arg)
- retval = 0;
- else
+ (p->p_pgrp == NULL) || (p->p_pgrp->pg_session == NULL) ||
+ (tp = SESSION_TP(p->p_pgrp->pg_session)) == TTY_NULL ||
+ tp->t_dev != (dev_t)*(int*)arg) {
+ retval = 0;
+ } else {
retval = 1;
+ }
- thread_funnel_set(kernel_flock, funnel_state);
-
- return(retval);
+ return retval;
}
-static int
+STATIC int
sysdoproc_filt_KERN_PROC_UID(proc_t p, void * arg)
{
kauth_cred_t my_cred;
uid_t uid;
- if (p->p_ucred == NULL)
- return(0);
+ if (p->p_ucred == NULL) {
+ return 0;
+ }
my_cred = kauth_cred_proc_ref(p);
uid = kauth_cred_getuid(my_cred);
kauth_cred_unref(&my_cred);
- if (uid != (uid_t)arg)
- return(0);
- else
- return(1);
+ if (uid != (uid_t)*(int*)arg) {
+ return 0;
+ } else {
+ return 1;
+ }
}
-static int
+STATIC int
sysdoproc_filt_KERN_PROC_RUID(proc_t p, void * arg)
{
kauth_cred_t my_cred;
uid_t ruid;
- if (p->p_ucred == NULL)
- return(0);
+ if (p->p_ucred == NULL) {
+ return 0;
+ }
my_cred = kauth_cred_proc_ref(p);
- ruid = my_cred->cr_ruid;
+ ruid = kauth_cred_getruid(my_cred);
kauth_cred_unref(&my_cred);
- if (ruid != (uid_t)arg)
- return(0);
- else
- return(1);
-}
-
-static int
-sysdoproc_filt_KERN_PROC_LCID(proc_t p, void * arg)
-{
- if ((p->p_lctx == NULL) ||
- (p->p_lctx->lc_id != (pid_t)arg))
- return(0);
- else
- return(1);
+ if (ruid != (uid_t)*(int*)arg) {
+ return 0;
+ } else {
+ return 1;
+ }
}
/*
* try over estimating by 5 procs
*/
-#define KERN_PROCSLOP (5 * sizeof (struct kinfo_proc))
+#define KERN_PROCSLOP (5 * sizeof (struct kinfo_proc))
struct sysdoproc_args {
- int buflen;
- caddr_t kprocp;
+ int buflen;
+ void *kprocp;
boolean_t is_64_bit;
- user_addr_t dp;
+ user_addr_t dp;
size_t needed;
int sizeof_kproc;
- int * errorp;
+ int *errorp;
int uidcheck;
int ruidcheck;
int ttycheck;
};
int
-sysdoproc_callback(proc_t p, void * arg)
+sysdoproc_callback(proc_t p, void *arg)
{
- struct sysdoproc_args * args = (struct sysdoproc_args *)arg;
- int error=0;
+ struct sysdoproc_args *args = arg;
if (args->buflen >= args->sizeof_kproc) {
- if ((args->ruidcheck != 0) && (sysdoproc_filt_KERN_PROC_RUID(p, (void *)args->uidval) == 0))
- return(PROC_RETURNED);
- if ((args->uidcheck != 0) && (sysdoproc_filt_KERN_PROC_UID(p, (void *)args->uidval) == 0))
- return(PROC_RETURNED);
- if ((args->ttycheck != 0) && (sysdoproc_filt_KERN_PROC_TTY(p, (void *)args->uidval) == 0))
- return(PROC_RETURNED);
+ if ((args->ruidcheck != 0) && (sysdoproc_filt_KERN_PROC_RUID(p, &args->uidval) == 0)) {
+ return PROC_RETURNED;
+ }
+ if ((args->uidcheck != 0) && (sysdoproc_filt_KERN_PROC_UID(p, &args->uidval) == 0)) {
+ return PROC_RETURNED;
+ }
+ if ((args->ttycheck != 0) && (sysdoproc_filt_KERN_PROC_TTY(p, &args->uidval) == 0)) {
+ return PROC_RETURNED;
+ }
bzero(args->kprocp, args->sizeof_kproc);
if (args->is_64_bit) {
- fill_user_proc(p, (struct user_kinfo_proc *) args->kprocp);
- }
- else {
- fill_proc(p, (struct kinfo_proc *) args->kprocp);
+ fill_user64_proc(p, args->kprocp);
+ } else {
+ fill_user32_proc(p, args->kprocp);
}
- error = copyout(args->kprocp, args->dp, args->sizeof_kproc);
+ int error = copyout(args->kprocp, args->dp, args->sizeof_kproc);
if (error) {
*args->errorp = error;
- return(PROC_RETURNED_DONE);
- return (error);
+ return PROC_RETURNED_DONE;
}
args->dp += args->sizeof_kproc;
args->buflen -= args->sizeof_kproc;
}
args->needed += args->sizeof_kproc;
- return(PROC_RETURNED);
+ return PROC_RETURNED;
}
-int
-sysctl_doproc(int *name, u_int namelen, user_addr_t where, size_t *sizep)
+SYSCTL_NODE(_kern, KERN_PROC, proc, CTLFLAG_RD | CTLFLAG_LOCKED, 0, "");
+STATIC int
+sysctl_prochandle SYSCTL_HANDLER_ARGS
{
+ int cmd = oidp->oid_arg2; /* subcommand for multiple nodes */
+ int *name = arg1; /* oid element argument vector */
+ int namelen = arg2; /* number of oid element arguments */
+ user_addr_t where = req->oldptr;/* user buffer copy out address */
+
user_addr_t dp = where;
size_t needed = 0;
- int buflen = where != USER_ADDR_NULL ? *sizep : 0;
+ int buflen = where != USER_ADDR_NULL ? req->oldlen : 0;
int error = 0;
- boolean_t is_64_bit = FALSE;
- struct kinfo_proc kproc;
- struct user_kinfo_proc user_kproc;
+ boolean_t is_64_bit = proc_is64bit(current_proc());
+ struct user32_kinfo_proc user32_kproc;
+ struct user64_kinfo_proc user_kproc;
int sizeof_kproc;
- caddr_t kprocp;
+ void *kprocp;
int (*filterfn)(proc_t, void *) = 0;
struct sysdoproc_args args;
int uidcheck = 0;
int ruidcheck = 0;
int ttycheck = 0;
- if (namelen != 2 && !(namelen == 1 && name[0] == KERN_PROC_ALL))
- return (EINVAL);
- is_64_bit = proc_is64bit(current_proc());
+ if (namelen != 1 && !(namelen == 0 && cmd == KERN_PROC_ALL)) {
+ return EINVAL;
+ }
+
if (is_64_bit) {
sizeof_kproc = sizeof(user_kproc);
- kprocp = (caddr_t) &user_kproc;
- }
- else {
- sizeof_kproc = sizeof(kproc);
- kprocp = (caddr_t) &kproc;
+ kprocp = &user_kproc;
+ } else {
+ sizeof_kproc = sizeof(user32_kproc);
+ kprocp = &user32_kproc;
}
+ switch (cmd) {
+ case KERN_PROC_PID:
+ filterfn = sysdoproc_filt_KERN_PROC_PID;
+ break;
- switch (name[0]) {
+ case KERN_PROC_PGRP:
+ filterfn = sysdoproc_filt_KERN_PROC_PGRP;
+ break;
- case KERN_PROC_PID:
- filterfn = sysdoproc_filt_KERN_PROC_PID;
- break;
+ case KERN_PROC_TTY:
+ ttycheck = 1;
+ break;
- case KERN_PROC_PGRP:
- filterfn = sysdoproc_filt_KERN_PROC_PGRP;
- break;
-
- case KERN_PROC_TTY:
- ttycheck = 1;
- break;
+ case KERN_PROC_UID:
+ uidcheck = 1;
+ break;
- case KERN_PROC_UID:
- uidcheck = 1;
- break;
+ case KERN_PROC_RUID:
+ ruidcheck = 1;
+ break;
- case KERN_PROC_RUID:
- ruidcheck = 1;
- break;
+ case KERN_PROC_ALL:
+ break;
-#if CONFIG_LCTX
- case KERN_PROC_LCID:
- filterfn = sysdoproc_filt_KERN_PROC_LCID;
- break;
-#endif
+ default:
+ /* must be kern.proc.<unknown> */
+ return ENOTSUP;
}
error = 0;
args.ruidcheck = ruidcheck;
args.ttycheck = ttycheck;
args.sizeof_kproc = sizeof_kproc;
- args.uidval = name[1];
+ if (namelen) {
+ args.uidval = name[0];
+ }
- proc_iterate((PROC_ALLPROCLIST | PROC_ZOMBPROCLIST), sysdoproc_callback, &args, filterfn, (void *)name[1]);
+ proc_iterate((PROC_ALLPROCLIST | PROC_ZOMBPROCLIST),
+ sysdoproc_callback, &args, filterfn, name);
- if (error)
- return(error);
+ if (error) {
+ return error;
+ }
dp = args.dp;
needed = args.needed;
-
+
if (where != USER_ADDR_NULL) {
- *sizep = dp - where;
- if (needed > *sizep)
- return (ENOMEM);
+ req->oldlen = dp - where;
+ if (needed > req->oldlen) {
+ return ENOMEM;
+ }
} else {
needed += KERN_PROCSLOP;
- *sizep = needed;
+ req->oldlen = needed;
}
- return (0);
+ /* adjust index so we return the right required/consumed amount */
+ req->oldidx += req->oldlen;
+ return 0;
}
/*
- * Fill in an eproc structure for the specified process.
+ * We specify the subcommand code for multiple nodes as the 'req->arg2' value
+ * in the sysctl declaration itself, which comes into the handler function
+ * as 'oidp->oid_arg2'.
+ *
+ * For these particular sysctls, since they have well known OIDs, we could
+ * have just obtained it from the '((int *)arg1)[0]' parameter, but that would
+ * not demonstrate how to handle multiple sysctls that used OID_AUTO instead
+ * of a well known value with a common handler function. This is desirable,
+ * because we want well known values to "go away" at some future date.
+ *
+ * It should be noted that the value of '((int *)arg1)[1]' is used for many
+ * an integer parameter to the subcommand for many of these sysctls; we'd
+ * rather have used '((int *)arg1)[0]' for that, or even better, an element
+ * in a structure passed in as the the 'newp' argument to sysctlbyname(3),
+ * and then use leaf-node permissions enforcement, but that would have
+ * necessitated modifying user space code to correspond to the interface
+ * change, and we are striving for binary backward compatibility here; even
+ * though these are SPI, and not intended for use by user space applications
+ * which are not themselves system tools or libraries, some applications
+ * have erroneously used them.
*/
-static void
-fill_eproc(proc_t p, struct eproc *ep)
+SYSCTL_PROC(_kern_proc, KERN_PROC_ALL, all, CTLTYPE_NODE | CTLFLAG_RD | CTLFLAG_LOCKED,
+ 0, /* Pointer argument (arg1) */
+ KERN_PROC_ALL, /* Integer argument (arg2) */
+ sysctl_prochandle, /* Handler function */
+ NULL, /* Data is size variant on ILP32/LP64 */
+ "");
+SYSCTL_PROC(_kern_proc, KERN_PROC_PID, pid, CTLTYPE_NODE | CTLFLAG_RD | CTLFLAG_LOCKED,
+ 0, /* Pointer argument (arg1) */
+ KERN_PROC_PID, /* Integer argument (arg2) */
+ sysctl_prochandle, /* Handler function */
+ NULL, /* Data is size variant on ILP32/LP64 */
+ "");
+SYSCTL_PROC(_kern_proc, KERN_PROC_TTY, tty, CTLTYPE_NODE | CTLFLAG_RD | CTLFLAG_LOCKED,
+ 0, /* Pointer argument (arg1) */
+ KERN_PROC_TTY, /* Integer argument (arg2) */
+ sysctl_prochandle, /* Handler function */
+ NULL, /* Data is size variant on ILP32/LP64 */
+ "");
+SYSCTL_PROC(_kern_proc, KERN_PROC_PGRP, pgrp, CTLTYPE_NODE | CTLFLAG_RD | CTLFLAG_LOCKED,
+ 0, /* Pointer argument (arg1) */
+ KERN_PROC_PGRP, /* Integer argument (arg2) */
+ sysctl_prochandle, /* Handler function */
+ NULL, /* Data is size variant on ILP32/LP64 */
+ "");
+SYSCTL_PROC(_kern_proc, KERN_PROC_UID, uid, CTLTYPE_NODE | CTLFLAG_RD | CTLFLAG_LOCKED,
+ 0, /* Pointer argument (arg1) */
+ KERN_PROC_UID, /* Integer argument (arg2) */
+ sysctl_prochandle, /* Handler function */
+ NULL, /* Data is size variant on ILP32/LP64 */
+ "");
+SYSCTL_PROC(_kern_proc, KERN_PROC_RUID, ruid, CTLTYPE_NODE | CTLFLAG_RD | CTLFLAG_LOCKED,
+ 0, /* Pointer argument (arg1) */
+ KERN_PROC_RUID, /* Integer argument (arg2) */
+ sysctl_prochandle, /* Handler function */
+ NULL, /* Data is size variant on ILP32/LP64 */
+ "");
+SYSCTL_PROC(_kern_proc, KERN_PROC_LCID, lcid, CTLTYPE_NODE | CTLFLAG_RD | CTLFLAG_LOCKED,
+ 0, /* Pointer argument (arg1) */
+ KERN_PROC_LCID, /* Integer argument (arg2) */
+ sysctl_prochandle, /* Handler function */
+ NULL, /* Data is size variant on ILP32/LP64 */
+ "");
+
+
+/*
+ * Fill in non-zero fields of an eproc structure for the specified process.
+ */
+STATIC void
+fill_user32_eproc(proc_t p, struct user32_eproc *__restrict ep)
{
struct tty *tp;
+ struct pgrp *pg;
+ struct session *sessp;
kauth_cred_t my_cred;
- struct pgrp * pg;
- struct session * sessp;
pg = proc_pgrp(p);
sessp = proc_session(p);
- ep->e_paddr = p;
-
if (pg != PGRP_NULL) {
- ep->e_sess = sessp;
ep->e_pgid = p->p_pgrpid;
ep->e_jobc = pg->pg_jobc;
- if ((sessp != SESSION_NULL) && sessp->s_ttyvp)
+ if (sessp != SESSION_NULL && sessp->s_ttyvp) {
ep->e_flag = EPROC_CTTY;
- } else {
- ep->e_sess = (struct session *)0;
- ep->e_pgid = 0;
- ep->e_jobc = 0;
- }
-#if CONFIG_LCTX
- if (p->p_lctx) {
- ep->e_lcid = p->p_lctx->lc_id;
- } else {
- ep->e_lcid = 0;
+ }
}
-#endif
ep->e_ppid = p->p_ppid;
- /* Pre-zero the fake historical pcred */
- bzero(&ep->e_pcred, sizeof(struct _pcred));
if (p->p_ucred) {
my_cred = kauth_cred_proc_ref(p);
/* A fake historical pcred */
- ep->e_pcred.p_ruid = my_cred->cr_ruid;
- ep->e_pcred.p_svuid = my_cred->cr_svuid;
- ep->e_pcred.p_rgid = my_cred->cr_rgid;
- ep->e_pcred.p_svgid = my_cred->cr_svgid;
+ ep->e_pcred.p_ruid = kauth_cred_getruid(my_cred);
+ ep->e_pcred.p_svuid = kauth_cred_getsvuid(my_cred);
+ ep->e_pcred.p_rgid = kauth_cred_getrgid(my_cred);
+ ep->e_pcred.p_svgid = kauth_cred_getsvgid(my_cred);
+
/* A fake historical *kauth_cred_t */
- ep->e_ucred.cr_ref = my_cred->cr_ref;
+ ep->e_ucred.cr_ref = os_atomic_load(&my_cred->cr_ref, relaxed);
ep->e_ucred.cr_uid = kauth_cred_getuid(my_cred);
- ep->e_ucred.cr_ngroups = my_cred->cr_ngroups;
- bcopy(my_cred->cr_groups, ep->e_ucred.cr_groups, NGROUPS*sizeof(gid_t));
+ ep->e_ucred.cr_ngroups = posix_cred_get(my_cred)->cr_ngroups;
+ bcopy(posix_cred_get(my_cred)->cr_groups,
+ ep->e_ucred.cr_groups, NGROUPS * sizeof(gid_t));
kauth_cred_unref(&my_cred);
}
- if (p->p_stat == SIDL || p->p_stat == SZOMB) {
- ep->e_vm.vm_tsize = 0;
- ep->e_vm.vm_dsize = 0;
- ep->e_vm.vm_ssize = 0;
- }
- ep->e_vm.vm_rssize = 0;
if ((p->p_flag & P_CONTROLT) && (sessp != SESSION_NULL) &&
- (tp = sessp->s_ttyp)) {
+ (tp = SESSION_TP(sessp))) {
ep->e_tdev = tp->t_dev;
ep->e_tpgid = sessp->s_ttypgrpid;
- ep->e_tsess = tp->t_session;
- } else
+ } else {
ep->e_tdev = NODEV;
+ }
- if (SESS_LEADER(p, sessp))
- ep->e_flag |= EPROC_SLEADER;
- bzero(&ep->e_wmesg[0], WMESGLEN+1);
- ep->e_xsize = ep->e_xrssize = 0;
- ep->e_xccount = ep->e_xswrss = 0;
- if (sessp != SESSION_NULL)
+ if (sessp != SESSION_NULL) {
+ if (SESS_LEADER(p, sessp)) {
+ ep->e_flag |= EPROC_SLEADER;
+ }
session_rele(sessp);
- if(pg != PGRP_NULL)
+ }
+ if (pg != PGRP_NULL) {
pg_rele(pg);
+ }
}
/*
- * Fill in an LP64 version of eproc structure for the specified process.
+ * Fill in non-zero fields of an LP64 eproc structure for the specified process.
*/
-static void
-fill_user_eproc(proc_t p, struct user_eproc *ep)
+STATIC void
+fill_user64_eproc(proc_t p, struct user64_eproc *__restrict ep)
{
struct tty *tp;
- struct session *sessp = NULL;
- struct pgrp * pg;
+ struct pgrp *pg;
+ struct session *sessp;
kauth_cred_t my_cred;
-
+
pg = proc_pgrp(p);
sessp = proc_session(p);
- ep->e_paddr = CAST_USER_ADDR_T(p);
if (pg != PGRP_NULL) {
- ep->e_sess = CAST_USER_ADDR_T(sessp);
ep->e_pgid = p->p_pgrpid;
ep->e_jobc = pg->pg_jobc;
- if (sessp != SESSION_NULL) {
- if (sessp->s_ttyvp)
- ep->e_flag = EPROC_CTTY;
+ if (sessp != SESSION_NULL && sessp->s_ttyvp) {
+ ep->e_flag = EPROC_CTTY;
}
- } else {
- ep->e_sess = USER_ADDR_NULL;
- ep->e_pgid = 0;
- ep->e_jobc = 0;
- }
-#if CONFIG_LCTX
- if (p->p_lctx) {
- ep->e_lcid = p->p_lctx->lc_id;
- } else {
- ep->e_lcid = 0;
}
-#endif
ep->e_ppid = p->p_ppid;
- /* Pre-zero the fake historical pcred */
- bzero(&ep->e_pcred, sizeof(ep->e_pcred));
if (p->p_ucred) {
my_cred = kauth_cred_proc_ref(p);
/* A fake historical pcred */
- ep->e_pcred.p_ruid = my_cred->cr_ruid;
- ep->e_pcred.p_svuid = my_cred->cr_svuid;
- ep->e_pcred.p_rgid = my_cred->cr_rgid;
- ep->e_pcred.p_svgid = my_cred->cr_svgid;
+ ep->e_pcred.p_ruid = kauth_cred_getruid(my_cred);
+ ep->e_pcred.p_svuid = kauth_cred_getsvuid(my_cred);
+ ep->e_pcred.p_rgid = kauth_cred_getrgid(my_cred);
+ ep->e_pcred.p_svgid = kauth_cred_getsvgid(my_cred);
/* A fake historical *kauth_cred_t */
- ep->e_ucred.cr_ref = my_cred->cr_ref;
+ ep->e_ucred.cr_ref = os_atomic_load(&my_cred->cr_ref, relaxed);
ep->e_ucred.cr_uid = kauth_cred_getuid(my_cred);
- ep->e_ucred.cr_ngroups = my_cred->cr_ngroups;
- bcopy(my_cred->cr_groups, ep->e_ucred.cr_groups, NGROUPS*sizeof(gid_t));
+ ep->e_ucred.cr_ngroups = posix_cred_get(my_cred)->cr_ngroups;
+ bcopy(posix_cred_get(my_cred)->cr_groups,
+ ep->e_ucred.cr_groups, NGROUPS * sizeof(gid_t));
kauth_cred_unref(&my_cred);
}
- if (p->p_stat == SIDL || p->p_stat == SZOMB) {
- ep->e_vm.vm_tsize = 0;
- ep->e_vm.vm_dsize = 0;
- ep->e_vm.vm_ssize = 0;
- }
- ep->e_vm.vm_rssize = 0;
if ((p->p_flag & P_CONTROLT) && (sessp != SESSION_NULL) &&
- (tp = sessp->s_ttyp)) {
+ (tp = SESSION_TP(sessp))) {
ep->e_tdev = tp->t_dev;
ep->e_tpgid = sessp->s_ttypgrpid;
- ep->e_tsess = CAST_USER_ADDR_T(tp->t_session);
- } else
+ } else {
ep->e_tdev = NODEV;
+ }
- if (SESS_LEADER(p, sessp))
- ep->e_flag |= EPROC_SLEADER;
- bzero(&ep->e_wmesg[0], WMESGLEN+1);
- ep->e_xsize = ep->e_xrssize = 0;
- ep->e_xccount = ep->e_xswrss = 0;
- if (sessp != SESSION_NULL)
+ if (sessp != SESSION_NULL) {
+ if (SESS_LEADER(p, sessp)) {
+ ep->e_flag |= EPROC_SLEADER;
+ }
session_rele(sessp);
- if (pg != PGRP_NULL)
+ }
+ if (pg != PGRP_NULL) {
pg_rele(pg);
+ }
}
/*
* Fill in an eproc structure for the specified process.
+ * bzeroed by our caller, so only set non-zero fields.
*/
-static void
-fill_externproc(proc_t p, struct extern_proc *exp)
-{
- exp->p_forw = exp->p_back = NULL;
- exp->p_starttime = p->p_start;
- exp->p_vmspace = NULL;
- exp->p_sigacts = p->p_sigacts;
- exp->p_flag = p->p_flag;
- if (p->p_lflag & P_LTRACED)
+STATIC void
+fill_user32_externproc(proc_t p, struct user32_extern_proc *__restrict exp)
+{
+ exp->p_starttime.tv_sec = p->p_start.tv_sec;
+ exp->p_starttime.tv_usec = p->p_start.tv_usec;
+ exp->p_flag = p->p_flag;
+ if (p->p_lflag & P_LTRACED) {
exp->p_flag |= P_TRACED;
- if (p->p_lflag & P_LPPWAIT)
+ }
+ if (p->p_lflag & P_LPPWAIT) {
exp->p_flag |= P_PPWAIT;
- if (p->p_lflag & P_LEXIT)
+ }
+ if (p->p_lflag & P_LEXIT) {
exp->p_flag |= P_WEXIT;
- exp->p_stat = p->p_stat ;
- exp->p_pid = p->p_pid ;
- exp->p_oppid = p->p_oppid ;
+ }
+ exp->p_stat = p->p_stat;
+ exp->p_pid = p->p_pid;
+ exp->p_oppid = p->p_oppid;
/* Mach related */
- exp->user_stack = CAST_DOWN(caddr_t, p->user_stack);
- exp->exit_thread = p->exit_thread ;
- exp->p_debugger = p->p_debugger ;
- exp->sigwait = p->sigwait ;
+ exp->p_debugger = p->p_debugger;
+ exp->sigwait = p->sigwait;
/* scheduling */
#ifdef _PROC_HAS_SCHEDINFO_
- exp->p_estcpu = p->p_estcpu ;
- exp->p_pctcpu = p->p_pctcpu ;
- exp->p_slptime = p->p_slptime ;
-#else
- exp->p_estcpu = 0 ;
- exp->p_pctcpu = 0 ;
- exp->p_slptime = 0 ;
+ exp->p_estcpu = p->p_estcpu;
+ exp->p_pctcpu = p->p_pctcpu;
+ exp->p_slptime = p->p_slptime;
#endif
- exp->p_cpticks = 0 ;
- exp->p_wchan = 0 ;
- exp->p_wmesg = 0 ;
- exp->p_swtime = 0 ;
- bcopy(&p->p_realtimer, &exp->p_realtimer,sizeof(struct itimerval));
- bcopy(&p->p_rtime, &exp->p_rtime,sizeof(struct timeval));
- exp->p_uticks = 0 ;
- exp->p_sticks = 0 ;
- exp->p_iticks = 0 ;
- exp->p_traceflag = 0;
- exp->p_tracep = 0 ;
- exp->p_siglist = 0 ; /* No longer relevant */
- exp->p_textvp = p->p_textvp ;
- exp->p_holdcnt = 0 ;
- exp->p_sigmask = 0 ; /* no longer avaialable */
- exp->p_sigignore = p->p_sigignore ;
- exp->p_sigcatch = p->p_sigcatch ;
- exp->p_priority = p->p_priority ;
- exp->p_usrpri = 0 ;
- exp->p_nice = p->p_nice ;
- bcopy(&p->p_comm, &exp->p_comm,MAXCOMLEN);
- exp->p_comm[MAXCOMLEN] = '\0';
- exp->p_pgrp = p->p_pgrp ;
- exp->p_addr = NULL;
- exp->p_xstat = p->p_xstat ;
- exp->p_acflag = p->p_acflag ;
- exp->p_ru = p->p_ru ; /* XXX may be NULL */
+ exp->p_realtimer.it_interval.tv_sec =
+ (user32_time_t)p->p_realtimer.it_interval.tv_sec;
+ exp->p_realtimer.it_interval.tv_usec =
+ (__int32_t)p->p_realtimer.it_interval.tv_usec;
+
+ exp->p_realtimer.it_value.tv_sec =
+ (user32_time_t)p->p_realtimer.it_value.tv_sec;
+ exp->p_realtimer.it_value.tv_usec =
+ (__int32_t)p->p_realtimer.it_value.tv_usec;
+
+ exp->p_rtime.tv_sec = (user32_time_t)p->p_rtime.tv_sec;
+ exp->p_rtime.tv_usec = (__int32_t)p->p_rtime.tv_usec;
+
+ exp->p_sigignore = p->p_sigignore;
+ exp->p_sigcatch = p->p_sigcatch;
+ exp->p_priority = p->p_priority;
+ exp->p_nice = p->p_nice;
+ bcopy(&p->p_comm, &exp->p_comm, MAXCOMLEN);
+ exp->p_xstat = p->p_xstat;
+ exp->p_acflag = p->p_acflag;
}
/*
* Fill in an LP64 version of extern_proc structure for the specified process.
*/
-static void
-fill_user_externproc(proc_t p, struct user_extern_proc *exp)
+STATIC void
+fill_user64_externproc(proc_t p, struct user64_extern_proc *__restrict exp)
{
- exp->p_forw = exp->p_back = USER_ADDR_NULL;
exp->p_starttime.tv_sec = p->p_start.tv_sec;
exp->p_starttime.tv_usec = p->p_start.tv_usec;
- exp->p_vmspace = USER_ADDR_NULL;
- exp->p_sigacts = CAST_USER_ADDR_T(p->p_sigacts);
- exp->p_flag = p->p_flag;
- if (p->p_lflag & P_LTRACED)
+ exp->p_flag = p->p_flag;
+ if (p->p_lflag & P_LTRACED) {
exp->p_flag |= P_TRACED;
- if (p->p_lflag & P_LPPWAIT)
+ }
+ if (p->p_lflag & P_LPPWAIT) {
exp->p_flag |= P_PPWAIT;
- if (p->p_lflag & P_LEXIT)
+ }
+ if (p->p_lflag & P_LEXIT) {
exp->p_flag |= P_WEXIT;
- exp->p_stat = p->p_stat ;
- exp->p_pid = p->p_pid ;
- exp->p_oppid = p->p_oppid ;
+ }
+ exp->p_stat = p->p_stat;
+ exp->p_pid = p->p_pid;
+ exp->p_oppid = p->p_oppid;
/* Mach related */
- exp->user_stack = p->user_stack;
- exp->exit_thread = CAST_USER_ADDR_T(p->exit_thread);
- exp->p_debugger = p->p_debugger ;
- exp->sigwait = p->sigwait ;
+ exp->p_debugger = p->p_debugger;
+ exp->sigwait = p->sigwait;
/* scheduling */
#ifdef _PROC_HAS_SCHEDINFO_
- exp->p_estcpu = p->p_estcpu ;
- exp->p_pctcpu = p->p_pctcpu ;
- exp->p_slptime = p->p_slptime ;
-#else
- exp->p_estcpu = 0 ;
- exp->p_pctcpu = 0 ;
- exp->p_slptime = 0 ;
+ exp->p_estcpu = p->p_estcpu;
+ exp->p_pctcpu = p->p_pctcpu;
+ exp->p_slptime = p->p_slptime;
#endif
- exp->p_cpticks = 0 ;
- exp->p_wchan = 0;
- exp->p_wmesg = 0;
- exp->p_swtime = 0 ;
exp->p_realtimer.it_interval.tv_sec = p->p_realtimer.it_interval.tv_sec;
exp->p_realtimer.it_interval.tv_usec = p->p_realtimer.it_interval.tv_usec;
+
exp->p_realtimer.it_value.tv_sec = p->p_realtimer.it_value.tv_sec;
exp->p_realtimer.it_value.tv_usec = p->p_realtimer.it_value.tv_usec;
+
exp->p_rtime.tv_sec = p->p_rtime.tv_sec;
exp->p_rtime.tv_usec = p->p_rtime.tv_usec;
- exp->p_uticks = 0 ;
- exp->p_sticks = 0 ;
- exp->p_iticks = 0 ;
- exp->p_traceflag = 0 ;
- exp->p_tracep = 0;
- exp->p_siglist = 0 ; /* No longer relevant */
- exp->p_textvp = CAST_USER_ADDR_T(p->p_textvp);
- exp->p_holdcnt = 0 ;
- exp->p_sigmask = 0 ; /* no longer avaialable */
- exp->p_sigignore = p->p_sigignore ;
- exp->p_sigcatch = p->p_sigcatch ;
- exp->p_priority = p->p_priority ;
- exp->p_usrpri = 0 ;
- exp->p_nice = p->p_nice ;
- bcopy(&p->p_comm, &exp->p_comm,MAXCOMLEN);
- exp->p_comm[MAXCOMLEN] = '\0';
- exp->p_pgrp = CAST_USER_ADDR_T(p->p_pgrp);
- exp->p_addr = USER_ADDR_NULL;
- exp->p_xstat = p->p_xstat ;
- exp->p_acflag = p->p_acflag ;
- exp->p_ru = CAST_USER_ADDR_T(p->p_ru); /* XXX may be NULL */
+
+ exp->p_sigignore = p->p_sigignore;
+ exp->p_sigcatch = p->p_sigcatch;
+ exp->p_priority = p->p_priority;
+ exp->p_nice = p->p_nice;
+ bcopy(&p->p_comm, &exp->p_comm, MAXCOMLEN);
+ exp->p_xstat = p->p_xstat;
+ exp->p_acflag = p->p_acflag;
}
-static void
-fill_proc(proc_t p, struct kinfo_proc *kp)
+STATIC void
+fill_user32_proc(proc_t p, struct user32_kinfo_proc *__restrict kp)
{
- fill_externproc(p, &kp->kp_proc);
- fill_eproc(p, &kp->kp_eproc);
+ /* on a 64 bit kernel, 32 bit users get some truncated information */
+ fill_user32_externproc(p, &kp->kp_proc);
+ fill_user32_eproc(p, &kp->kp_eproc);
}
-static void
-fill_user_proc(proc_t p, struct user_kinfo_proc *kp)
+STATIC void
+fill_user64_proc(proc_t p, struct user64_kinfo_proc *__restrict kp)
{
- fill_user_externproc(p, &kp->kp_proc);
- fill_user_eproc(p, &kp->kp_eproc);
+ fill_user64_externproc(p, &kp->kp_proc);
+ fill_user64_eproc(p, &kp->kp_eproc);
}
-int
-kdebug_ops(int *name, u_int namelen, user_addr_t where,
- size_t *sizep, proc_t p)
+STATIC int
+sysctl_kdebug_ops SYSCTL_HANDLER_ARGS
{
- int ret=0;
-
- ret = suser(kauth_cred_get(), &p->p_acflag);
- if (ret)
- return(ret);
+ __unused int cmd = oidp->oid_arg2; /* subcommand*/
+ int *name = arg1; /* oid element argument vector */
+ int namelen = arg2; /* number of oid element arguments */
+ user_addr_t oldp = req->oldptr; /* user buffer copy out address */
+ size_t *oldlenp = &req->oldlen; /* user buffer copy out size */
+// user_addr_t newp = req->newptr; /* user buffer copy in address */
+// size_t newlen = req->newlen; /* user buffer copy in size */
+
+ int ret = 0;
+
+ if (namelen == 0) {
+ return ENOTSUP;
+ }
- switch(name[0]) {
+ switch (name[0]) {
case KERN_KDEFLAGS:
case KERN_KDDFLAGS:
case KERN_KDENABLE:
case KERN_KDSETREG:
case KERN_KDGETREG:
case KERN_KDREADTR:
+ case KERN_KDWRITETR:
+ case KERN_KDWRITEMAP:
+ case KERN_KDTEST:
case KERN_KDPIDTR:
case KERN_KDTHRMAP:
case KERN_KDPIDEX:
- case KERN_KDSETRTCDEC:
case KERN_KDSETBUF:
- case KERN_KDGETENTROPY:
- ret = kdbg_control(name, namelen, where, sizep);
- break;
+ case KERN_KDREADCURTHRMAP:
+ case KERN_KDSET_TYPEFILTER:
+ case KERN_KDBUFWAIT:
+ case KERN_KDCPUMAP:
+ case KERN_KDWRITEMAP_V3:
+ case KERN_KDWRITETR_V3:
+ ret = kdbg_control(name, namelen, oldp, oldlenp);
+ break;
default:
- ret= ENOTSUP;
+ ret = ENOTSUP;
break;
}
- return(ret);
+
+ /* adjust index so we return the right required/consumed amount */
+ if (!ret) {
+ req->oldidx += req->oldlen;
+ }
+
+ return ret;
}
+SYSCTL_PROC(_kern, KERN_KDEBUG, kdebug, CTLTYPE_NODE | CTLFLAG_RD | CTLFLAG_LOCKED,
+ 0, /* Pointer argument (arg1) */
+ 0, /* Integer argument (arg2) */
+ sysctl_kdebug_ops, /* Handler function */
+ NULL, /* Data pointer */
+ "");
+#if !CONFIG_EMBEDDED
/*
* Return the top *sizep bytes of the user stack, or the entire area of the
* user stack down through the saved exec_path, whichever is smaller.
*/
-int
-sysctl_procargs(int *name, u_int namelen, user_addr_t where,
- size_t *sizep, proc_t cur_proc)
+STATIC int
+sysctl_doprocargs SYSCTL_HANDLER_ARGS
{
- return sysctl_procargsx( name, namelen, where, sizep, cur_proc, 0);
-}
+ __unused int cmd = oidp->oid_arg2; /* subcommand*/
+ int *name = arg1; /* oid element argument vector */
+ int namelen = arg2; /* number of oid element arguments */
+ user_addr_t oldp = req->oldptr; /* user buffer copy out address */
+ size_t *oldlenp = &req->oldlen; /* user buffer copy out size */
+// user_addr_t newp = req->newptr; /* user buffer copy in address */
+// size_t newlen = req->newlen; /* user buffer copy in size */
+ int error;
-static int
-sysctl_procargs2(int *name, u_int namelen, user_addr_t where,
- size_t *sizep, proc_t cur_proc)
-{
- return sysctl_procargsx( name, namelen, where, sizep, cur_proc, 1);
+ error = sysctl_procargsx( name, namelen, oldp, oldlenp, current_proc(), 0);
+
+ /* adjust index so we return the right required/consumed amount */
+ if (!error) {
+ req->oldidx += req->oldlen;
+ }
+
+ return error;
}
+SYSCTL_PROC(_kern, KERN_PROCARGS, procargs, CTLTYPE_NODE | CTLFLAG_RD | CTLFLAG_LOCKED,
+ 0, /* Pointer argument (arg1) */
+ 0, /* Integer argument (arg2) */
+ sysctl_doprocargs, /* Handler function */
+ NULL, /* Data pointer */
+ "");
+#endif /* !CONFIG_EMBEDDED */
+
+STATIC int
+sysctl_doprocargs2 SYSCTL_HANDLER_ARGS
+{
+ __unused int cmd = oidp->oid_arg2; /* subcommand*/
+ int *name = arg1; /* oid element argument vector */
+ int namelen = arg2; /* number of oid element arguments */
+ user_addr_t oldp = req->oldptr; /* user buffer copy out address */
+ size_t *oldlenp = &req->oldlen; /* user buffer copy out size */
+// user_addr_t newp = req->newptr; /* user buffer copy in address */
+// size_t newlen = req->newlen; /* user buffer copy in size */
+ int error;
-static int
-sysctl_procargsx(int *name, __unused u_int namelen, user_addr_t where,
- size_t *sizep, proc_t cur_proc, int argc_yes)
+ error = sysctl_procargsx( name, namelen, oldp, oldlenp, current_proc(), 1);
+
+ /* adjust index so we return the right required/consumed amount */
+ if (!error) {
+ req->oldidx += req->oldlen;
+ }
+
+ return error;
+}
+SYSCTL_PROC(_kern, KERN_PROCARGS2, procargs2, CTLTYPE_NODE | CTLFLAG_RD | CTLFLAG_LOCKED,
+ 0, /* Pointer argument (arg1) */
+ 0, /* Integer argument (arg2) */
+ sysctl_doprocargs2, /* Handler function */
+ NULL, /* Data pointer */
+ "");
+
+STATIC int
+sysctl_procargsx(int *name, u_int namelen, user_addr_t where,
+ size_t *sizep, proc_t cur_proc, int argc_yes)
{
proc_t p;
int buflen = where != USER_ADDR_NULL ? *sizep : 0;
int error = 0;
struct _vm_map *proc_map;
struct task * task;
- vm_map_copy_t tmp;
- user_addr_t arg_addr;
- size_t arg_size;
+ vm_map_copy_t tmp;
+ user_addr_t arg_addr;
+ size_t arg_size;
caddr_t data;
- size_t argslen=0;
+ size_t argslen = 0;
int size;
- vm_offset_t copy_start, copy_end;
+ vm_size_t alloc_size = 0;
+ vm_offset_t copy_start, copy_end;
kern_return_t ret;
int pid;
kauth_cred_t my_cred;
uid_t uid;
+ int argc = -1;
- if (argc_yes)
- buflen -= sizeof(int); /* reserve first word to return argc */
+ if (namelen < 1) {
+ return EINVAL;
+ }
+ if (argc_yes) {
+ buflen -= sizeof(int); /* reserve first word to return argc */
+ }
/* we only care about buflen when where (oldp from sysctl) is not NULL. */
/* when where (oldp from sysctl) is NULL and sizep (oldlenp from sysctl */
/* is not NULL then the caller wants us to return the length needed to */
- /* hold the data we would return */
+ /* hold the data we would return */
if (where != USER_ADDR_NULL && (buflen <= 0 || buflen > ARG_MAX)) {
- return(EINVAL);
+ return EINVAL;
}
arg_size = buflen;
pid = name[0];
p = proc_find(pid);
if (p == NULL) {
- return(EINVAL);
+ return EINVAL;
}
/*
if (!p->user_stack) {
proc_rele(p);
- return(EINVAL);
+ return EINVAL;
}
if (where == USER_ADDR_NULL) {
/* caller only wants to know length of proc args data */
if (sizep == NULL) {
proc_rele(p);
- return(EFAULT);
+ return EFAULT;
}
-
- size = p->p_argslen;
+
+ size = p->p_argslen;
proc_rele(p);
- if (argc_yes) {
- size += sizeof(int);
- }
- else {
+ if (argc_yes) {
+ size += sizeof(int);
+ } else {
/*
* old PROCARGS will return the executable's path and plus some
* extra space for work alignment and data tags
*/
- size += PATH_MAX + (6 * sizeof(int));
- }
+ size += PATH_MAX + (6 * sizeof(int));
+ }
size += (size & (sizeof(int) - 1)) ? (sizeof(int) - (size & (sizeof(int) - 1))) : 0;
*sizep = size;
- return (0);
+ return 0;
}
-
+
my_cred = kauth_cred_proc_ref(p);
uid = kauth_cred_getuid(my_cred);
kauth_cred_unref(&my_cred);
- if ((uid != kauth_cred_getuid(kauth_cred_get()))
- && suser(kauth_cred_get(), &cur_proc->p_acflag)) {
+ if ((uid != kauth_cred_getuid(kauth_cred_get()))
+ && suser(kauth_cred_get(), &cur_proc->p_acflag)) {
proc_rele(p);
- return (EINVAL);
+ return EINVAL;
}
- if ((u_int)arg_size > p->p_argslen)
- arg_size = round_page(p->p_argslen);
+ if ((u_int)arg_size > p->p_argslen) {
+ arg_size = round_page(p->p_argslen);
+ }
arg_addr = p->user_stack - arg_size;
-
/*
* Before we can block (any VM code), make another
* reference to the map to keep it alive. We do
task = p->task;
if (task == NULL) {
proc_rele(p);
- return(EINVAL);
+ return EINVAL;
}
-
+
+ /* save off argc before releasing the proc */
+ argc = p->p_argc;
+
argslen = p->p_argslen;
/*
* Once we have a task reference we can convert that into a
proc_rele(p);
proc_map = get_task_map_reference(task);
task_deallocate(task);
-
- if (proc_map == NULL)
- return(EINVAL);
+ if (proc_map == NULL) {
+ return EINVAL;
+ }
- ret = kmem_alloc(kernel_map, ©_start, round_page(arg_size));
+ alloc_size = round_page(arg_size);
+ ret = kmem_alloc(kernel_map, ©_start, alloc_size, VM_KERN_MEMORY_BSD);
if (ret != KERN_SUCCESS) {
vm_map_deallocate(proc_map);
- return(ENOMEM);
+ return ENOMEM;
}
+ bzero((void *)copy_start, alloc_size);
copy_end = round_page(copy_start + arg_size);
- if( vm_map_copyin(proc_map, (vm_map_address_t)arg_addr,
- (vm_map_size_t)arg_size, FALSE, &tmp) != KERN_SUCCESS) {
- vm_map_deallocate(proc_map);
- kmem_free(kernel_map, copy_start,
- round_page(arg_size));
- return (EIO);
+ if (vm_map_copyin(proc_map, (vm_map_address_t)arg_addr,
+ (vm_map_size_t)arg_size, FALSE, &tmp) != KERN_SUCCESS) {
+ vm_map_deallocate(proc_map);
+ kmem_free(kernel_map, copy_start,
+ round_page(arg_size));
+ return EIO;
}
/*
*/
vm_map_deallocate(proc_map);
- if( vm_map_copy_overwrite(kernel_map,
- (vm_map_address_t)copy_start,
- tmp, FALSE) != KERN_SUCCESS) {
- kmem_free(kernel_map, copy_start,
- round_page(arg_size));
- return (EIO);
+ if (vm_map_copy_overwrite(kernel_map,
+ (vm_map_address_t)copy_start,
+ tmp, (vm_map_size_t) arg_size, FALSE) != KERN_SUCCESS) {
+ kmem_free(kernel_map, copy_start,
+ round_page(arg_size));
+ vm_map_copy_discard(tmp);
+ return EIO;
}
if (arg_size > argslen) {
size = arg_size;
}
+ /*
+ * When these sysctls were introduced, the first string in the strings
+ * section was just the bare path of the executable. However, for security
+ * reasons we now prefix this string with executable_path= so it can be
+ * parsed getenv style. To avoid binary compatability issues with exising
+ * callers of this sysctl, we strip it off here if present.
+ * (rdar://problem/13746466)
+ */
+#define EXECUTABLE_KEY "executable_path="
+ if (strncmp(EXECUTABLE_KEY, data, strlen(EXECUTABLE_KEY)) == 0) {
+ data += strlen(EXECUTABLE_KEY);
+ size -= strlen(EXECUTABLE_KEY);
+ }
+
if (argc_yes) {
/* Put processes argc as the first word in the copyout buffer */
- suword(where, p->p_argc);
+ suword(where, argc);
error = copyout(data, (where + sizeof(int)), size);
size += sizeof(int);
} else {
* Make the old PROCARGS work to return the executable's path
* But, only if there is enough space in the provided buffer
*
- * on entry: data [possibily] points to the beginning of the path
- *
+ * on entry: data [possibily] points to the beginning of the path
+ *
* Note: we keep all pointers&sizes aligned to word boundries
*/
- if ( (! error) && (buflen > 0 && (u_int)buflen > argslen) )
- {
+ if ((!error) && (buflen > 0 && (u_int)buflen > argslen)) {
int binPath_sz, alignedBinPath_sz = 0;
int extraSpaceNeeded, addThis;
user_addr_t placeHere;
int max_len = size;
/* Some apps are really bad about messing up their stacks
- So, we have to be extra careful about getting the length
- of the executing binary. If we encounter an error, we bail.
- */
+ * So, we have to be extra careful about getting the length
+ * of the executing binary. If we encounter an error, we bail.
+ */
/* Limit ourselves to PATH_MAX paths */
- if ( max_len > PATH_MAX ) max_len = PATH_MAX;
+ if (max_len > PATH_MAX) {
+ max_len = PATH_MAX;
+ }
binPath_sz = 0;
- while ( (binPath_sz < max_len-1) && (*str++ != 0) )
+ while ((binPath_sz < max_len - 1) && (*str++ != 0)) {
binPath_sz++;
+ }
/* If we have a NUL terminator, copy it, too */
- if (binPath_sz < max_len-1) binPath_sz += 1;
+ if (binPath_sz < max_len - 1) {
+ binPath_sz += 1;
+ }
/* Pre-Flight the space requiremnts */
/* Account for the padding that fills out binPath to the next word */
- alignedBinPath_sz += (binPath_sz & (sizeof(int)-1)) ? (sizeof(int)-(binPath_sz & (sizeof(int)-1))) : 0;
+ alignedBinPath_sz += (binPath_sz & (sizeof(int) - 1)) ? (sizeof(int) - (binPath_sz & (sizeof(int) - 1))) : 0;
placeHere = where + size;
- /* Account for the bytes needed to keep placeHere word aligned */
- addThis = (placeHere & (sizeof(int)-1)) ? (sizeof(int)-(placeHere & (sizeof(int)-1))) : 0;
+ /* Account for the bytes needed to keep placeHere word aligned */
+ addThis = (placeHere & (sizeof(int) - 1)) ? (sizeof(int) - (placeHere & (sizeof(int) - 1))) : 0;
/* Add up all the space that is needed */
extraSpaceNeeded = alignedBinPath_sz + addThis + binPath_sz + (4 * sizeof(int));
/* is there is room to tack on argv[0]? */
- if ( (buflen & ~(sizeof(int)-1)) >= ( argslen + extraSpaceNeeded ))
- {
+ if ((buflen & ~(sizeof(int) - 1)) >= (argslen + extraSpaceNeeded)) {
placeHere += addThis;
suword(placeHere, 0);
placeHere += sizeof(int);
suword(placeHere, 0);
placeHere += sizeof(int);
error = copyout(data, placeHere, binPath_sz);
- if ( ! error )
- {
+ if (!error) {
placeHere += binPath_sz;
suword(placeHere, 0);
size += extraSpaceNeeded;
kmem_free(kernel_map, copy_start, copy_end - copy_start);
}
if (error) {
- return(error);
+ return error;
}
- if (where != USER_ADDR_NULL)
+ if (where != USER_ADDR_NULL) {
*sizep = size;
- return (0);
+ }
+ return 0;
}
/*
* Max number of concurrent aio requests
*/
-static int
+STATIC int
sysctl_aiomax
(__unused struct sysctl_oid *oidp, __unused void *arg1, __unused int arg2, struct sysctl_req *req)
{
int new_value, changed;
int error = sysctl_io_number(req, aio_max_requests, sizeof(int), &new_value, &changed);
if (changed) {
- /* make sure the system-wide limit is greater than the per process limit */
- if (new_value >= aio_max_requests_per_process)
+ /* make sure the system-wide limit is greater than the per process limit */
+ if (new_value >= aio_max_requests_per_process && new_value <= AIO_MAX_REQUESTS) {
aio_max_requests = new_value;
- else
+ } else {
error = EINVAL;
+ }
}
- return(error);
+ return error;
}
/*
* Max number of concurrent aio requests per process
*/
-static int
+STATIC int
sysctl_aioprocmax
(__unused struct sysctl_oid *oidp, __unused void *arg1, __unused int arg2, struct sysctl_req *req)
{
int error = sysctl_io_number(req, aio_max_requests_per_process, sizeof(int), &new_value, &changed);
if (changed) {
/* make sure per process limit is less than the system-wide limit */
- if (new_value <= aio_max_requests && new_value >= AIO_LISTIO_MAX)
+ if (new_value <= aio_max_requests && new_value >= AIO_LISTIO_MAX) {
aio_max_requests_per_process = new_value;
- else
+ } else {
error = EINVAL;
+ }
}
- return(error);
+ return error;
}
/*
* Max number of async IO worker threads
*/
-static int
+STATIC int
sysctl_aiothreads
(__unused struct sysctl_oid *oidp, __unused void *arg1, __unused int arg2, struct sysctl_req *req)
{
int error = sysctl_io_number(req, aio_worker_threads, sizeof(int), &new_value, &changed);
if (changed) {
/* we only allow an increase in the number of worker threads */
- if (new_value > aio_worker_threads ) {
- _aio_create_worker_threads((new_value - aio_worker_threads));
+ if (new_value > aio_worker_threads) {
+ _aio_create_worker_threads((new_value - aio_worker_threads));
aio_worker_threads = new_value;
+ } else {
+ error = EINVAL;
}
- else
- error = EINVAL;
}
- return(error);
+ return error;
}
/*
* System-wide limit on the max number of processes
*/
-static int
+STATIC int
sysctl_maxproc
(__unused struct sysctl_oid *oidp, __unused void *arg1, __unused int arg2, struct sysctl_req *req)
{
int new_value, changed;
int error = sysctl_io_number(req, maxproc, sizeof(int), &new_value, &changed);
if (changed) {
- AUDIT_ARG(value, new_value);
+ AUDIT_ARG(value32, new_value);
/* make sure the system-wide limit is less than the configured hard
- limit set at kernel compilation */
- if (new_value <= hard_maxproc && new_value > 0)
+ * limit set at kernel compilation */
+ if (new_value <= hard_maxproc && new_value > 0) {
maxproc = new_value;
- else
+ } else {
error = EINVAL;
+ }
}
- return(error);
+ return error;
}
-SYSCTL_STRING(_kern, KERN_OSTYPE, ostype,
- CTLFLAG_RD | CTLFLAG_KERN,
- ostype, 0, "");
-SYSCTL_STRING(_kern, KERN_OSRELEASE, osrelease,
- CTLFLAG_RD | CTLFLAG_KERN,
- osrelease, 0, "");
-SYSCTL_INT(_kern, KERN_OSREV, osrevision,
- CTLFLAG_RD | CTLFLAG_KERN,
- NULL, BSD, "");
-SYSCTL_STRING(_kern, KERN_VERSION, version,
- CTLFLAG_RD | CTLFLAG_KERN,
- version, 0, "");
+extern int sched_enable_smt;
+STATIC int
+sysctl_sched_enable_smt
+(__unused struct sysctl_oid *oidp, __unused void *arg1, __unused int arg2, struct sysctl_req *req)
+{
+ int new_value, changed;
+ int error = sysctl_io_number(req, sched_enable_smt, sizeof(int), &new_value, &changed);
+ if (error) {
+ return error;
+ }
+ kern_return_t kret = KERN_SUCCESS;
+ if (changed) {
+ AUDIT_ARG(value32, new_value);
+ if (new_value == 0) {
+ sched_enable_smt = 0;
+ kret = enable_smt_processors(false);
+ } else {
+ sched_enable_smt = 1;
+ kret = enable_smt_processors(true);
+ }
+ }
+ switch (kret) {
+ case KERN_SUCCESS:
+ error = 0;
+ break;
+ case KERN_INVALID_ARGUMENT:
+ error = EINVAL;
+ break;
+ case KERN_FAILURE:
+ error = EBUSY;
+ break;
+ default:
+ error = ENOENT;
+ break;
+ }
-/* PR-5293665: need to use a callback function for kern.osversion to set
- * osversion in IORegistry */
+ return error;
+}
-static int
-sysctl_osversion(__unused struct sysctl_oid *oidp, void *arg1, int arg2, struct sysctl_req *req)
+SYSCTL_STRING(_kern, KERN_OSTYPE, ostype,
+ CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED,
+ ostype, 0, "");
+SYSCTL_STRING(_kern, KERN_OSRELEASE, osrelease,
+ CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED,
+ osrelease, 0, "");
+SYSCTL_INT(_kern, KERN_OSREV, osrevision,
+ CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED,
+ (int *)NULL, BSD, "");
+SYSCTL_STRING(_kern, KERN_VERSION, version,
+ CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED,
+ version, 0, "");
+SYSCTL_STRING(_kern, OID_AUTO, uuid,
+ CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED,
+ &kernel_uuid_string[0], 0, "");
+
+SYSCTL_STRING(_kern, OID_AUTO, osbuildconfig,
+ CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED | CTLFLAG_MASKED,
+ &osbuild_config[0], 0, "");
+
+STATIC int
+sysctl_protoboot(__unused struct sysctl_oid *oidp,
+ __unused void *arg1, __unused int arg2, struct sysctl_req *req)
{
- int rval = 0;
+ int error = -1;
+#if CONFIG_LOCKERBOOT
+ char protoboot_buff[24];
+ size_t protoboot_len = sizeof(protoboot_buff);
+
+ if (vnode_tag(rootvnode) == VT_LOCKERFS) {
+ strlcpy(protoboot_buff, kernel_protoboot_mount, protoboot_len);
+ error = sysctl_io_string(req, protoboot_buff, protoboot_len, 0, NULL);
+ } else {
+ error = EFTYPE;
+ }
+
+#else
+#pragma unused(req)
+ error = ENOTSUP;
+#endif
+
+ return error;
+}
+
+SYSCTL_PROC(_kern, OID_AUTO, protoboot,
+ CTLTYPE_STRING | CTLFLAG_RD | CTLFLAG_LOCKED,
+ 0, 0, sysctl_protoboot, "A", "");
+
+#if DEBUG
+#ifndef DKPR
+#define DKPR 1
+#endif
+#endif
+
+#if DKPR
+int debug_kprint_syscall = 0;
+char debug_kprint_syscall_process[MAXCOMLEN + 1];
+
+/* Thread safe: bits and string value are not used to reclaim state */
+SYSCTL_INT(_debug, OID_AUTO, kprint_syscall,
+ CTLFLAG_RW | CTLFLAG_LOCKED, &debug_kprint_syscall, 0, "kprintf syscall tracing");
+SYSCTL_STRING(_debug, OID_AUTO, kprint_syscall_process,
+ CTLFLAG_RW | CTLFLAG_LOCKED, debug_kprint_syscall_process, sizeof(debug_kprint_syscall_process),
+ "name of process for kprintf syscall tracing");
+
+int
+debug_kprint_current_process(const char **namep)
+{
+ struct proc *p = current_proc();
+
+ if (p == NULL) {
+ return 0;
+ }
+
+ if (debug_kprint_syscall_process[0]) {
+ /* user asked to scope tracing to a particular process name */
+ if (0 == strncmp(debug_kprint_syscall_process,
+ p->p_comm, sizeof(debug_kprint_syscall_process))) {
+ /* no value in telling the user that we traced what they asked */
+ if (namep) {
+ *namep = NULL;
+ }
+
+ return 1;
+ } else {
+ return 0;
+ }
+ }
+
+ /* trace all processes. Tell user what we traced */
+ if (namep) {
+ *namep = p->p_comm;
+ }
+
+ return 1;
+}
+#endif
- rval = sysctl_handle_string(oidp, arg1, arg2, req);
+/* PR-5293665: need to use a callback function for kern.osversion to set
+ * osversion in IORegistry */
+
+STATIC int
+sysctl_osversion(__unused struct sysctl_oid *oidp, void *arg1, int arg2, struct sysctl_req *req)
+{
+ int rval = 0;
+
+ rval = sysctl_handle_string(oidp, arg1, arg2, req);
- if (req->newptr) {
- IORegistrySetOSBuildVersion((char *)arg1);
- }
+ if (req->newptr) {
+ IORegistrySetOSBuildVersion((char *)arg1);
+ }
- return rval;
+ return rval;
}
SYSCTL_PROC(_kern, KERN_OSVERSION, osversion,
- CTLFLAG_RW | CTLFLAG_KERN | CTLTYPE_STRING,
- osversion, 256 /* OSVERSIZE*/,
- sysctl_osversion, "A", "");
+ CTLFLAG_RW | CTLFLAG_KERN | CTLTYPE_STRING | CTLFLAG_LOCKED,
+ osversion, 256 /* OSVERSIZE*/,
+ sysctl_osversion, "A", "");
-static int
+char osproductversion[48] = { '\0' };
+
+STATIC int
+sysctl_osproductversion(__unused struct sysctl_oid *oidp, void *arg1, int arg2, struct sysctl_req *req)
+{
+ if (req->newptr != 0) {
+ /*
+ * Can only ever be set by launchd, and only once at boot.
+ */
+ if (req->p->p_pid != 1 || osproductversion[0] != '\0') {
+ return EPERM;
+ }
+ }
+
+ return sysctl_handle_string(oidp, arg1, arg2, req);
+}
+
+SYSCTL_PROC(_kern, OID_AUTO, osproductversion,
+ CTLFLAG_RW | CTLFLAG_KERN | CTLTYPE_STRING | CTLFLAG_LOCKED,
+ osproductversion, sizeof(osproductversion),
+ sysctl_osproductversion, "A", "The ProductVersion from SystemVersion.plist");
+
+static uint64_t iossupportversion_string[48];
+
+STATIC int
+sysctl_iossupportversion(__unused struct sysctl_oid *oidp, void *arg1, int arg2, struct sysctl_req *req)
+{
+ if (req->newptr != 0) {
+ /*
+ * Can only ever be set by launchd, and only once at boot.
+ */
+ if (req->p->p_pid != 1 || iossupportversion_string[0] != '\0') {
+ return EPERM;
+ }
+ }
+
+ return sysctl_handle_string(oidp, arg1, arg2, req);
+}
+
+SYSCTL_PROC(_kern, OID_AUTO, iossupportversion,
+ CTLFLAG_RW | CTLFLAG_KERN | CTLTYPE_STRING | CTLFLAG_LOCKED,
+ iossupportversion_string, sizeof(iossupportversion_string),
+ sysctl_iossupportversion, "A", "The iOSSupportVersion from SystemVersion.plist");
+
+static uint64_t osvariant_status = 0;
+
+STATIC int
+sysctl_osvariant_status(__unused struct sysctl_oid *oidp, void *arg1, int arg2, struct sysctl_req *req)
+{
+ if (req->newptr != 0) {
+ /*
+ * Can only ever be set by launchd, and only once at boot.
+ */
+ if (req->p->p_pid != 1 || osvariant_status != 0) {
+ return EPERM;
+ }
+ }
+
+ return sysctl_handle_quad(oidp, arg1, arg2, req);
+}
+
+SYSCTL_PROC(_kern, OID_AUTO, osvariant_status,
+ CTLFLAG_RW | CTLTYPE_QUAD | CTLFLAG_LOCKED | CTLFLAG_MASKED,
+ &osvariant_status, sizeof(osvariant_status),
+ sysctl_osvariant_status, "Q", "Opaque flags used to cache OS variant information");
+
+extern void commpage_update_dyld_flags(uint64_t);
+static uint64_t dyld_system_flags = 0;
+
+STATIC int
+sysctl_dyld_system_flags(__unused struct sysctl_oid *oidp, void *arg1, int arg2, struct sysctl_req *req)
+{
+ /*
+ * Can only ever be set by launchd, possibly several times
+ * as dyld may change its mind after a userspace reboot.
+ */
+ if (req->newptr != 0 && req->p->p_pid != 1) {
+ return EPERM;
+ }
+
+ int res = sysctl_handle_quad(oidp, arg1, arg2, req);
+ if (req->newptr && res == 0) {
+ commpage_update_dyld_flags(osvariant_status);
+ }
+ return res;
+}
+
+SYSCTL_PROC(_kern, OID_AUTO, dyld_system_flags,
+ CTLFLAG_RW | CTLTYPE_QUAD | CTLFLAG_LOCKED | CTLFLAG_MASKED,
+ &dyld_system_flags, sizeof(dyld_system_flags),
+ sysctl_dyld_system_flags, "Q", "Opaque flags used to cache dyld system-wide configuration");
+
+#if defined(XNU_TARGET_OS_BRIDGE)
+char macosproductversion[MACOS_VERS_LEN] = { '\0' };
+
+SYSCTL_STRING(_kern, OID_AUTO, macosproductversion,
+ CTLFLAG_RW | CTLFLAG_KERN | CTLFLAG_LOCKED,
+ &macosproductversion[0], MACOS_VERS_LEN, "The currently running macOS ProductVersion (from SystemVersion.plist on macOS)");
+
+char macosversion[MACOS_VERS_LEN] = { '\0' };
+
+SYSCTL_STRING(_kern, OID_AUTO, macosversion,
+ CTLFLAG_RW | CTLFLAG_KERN | CTLFLAG_LOCKED,
+ &macosversion[0], MACOS_VERS_LEN, "The currently running macOS build version");
+#endif
+
+STATIC int
sysctl_sysctl_bootargs
(__unused struct sysctl_oid *oidp, __unused void *arg1, __unused int arg2, struct sysctl_req *req)
{
int error;
- char buf[256];
+ char buf[BOOT_LINE_LENGTH];
- strlcpy(buf, PE_boot_args(), 256);
- error = sysctl_io_string(req, buf, 256, 0, NULL);
- return(error);
+ strlcpy(buf, PE_boot_args(), BOOT_LINE_LENGTH);
+ error = sysctl_io_string(req, buf, BOOT_LINE_LENGTH, 0, NULL);
+ return error;
}
SYSCTL_PROC(_kern, OID_AUTO, bootargs,
- CTLFLAG_LOCKED | CTLFLAG_RD | CTLFLAG_KERN | CTLTYPE_STRING,
- NULL, 0,
- sysctl_sysctl_bootargs, "A", "bootargs");
-
-SYSCTL_INT(_kern, KERN_MAXFILES, maxfiles,
- CTLFLAG_RW | CTLFLAG_KERN,
- &maxfiles, 0, "");
-SYSCTL_INT(_kern, KERN_ARGMAX, argmax,
- CTLFLAG_RD | CTLFLAG_KERN,
- NULL, ARG_MAX, "");
-SYSCTL_INT(_kern, KERN_POSIX1, posix1version,
- CTLFLAG_RD | CTLFLAG_KERN,
- NULL, _POSIX_VERSION, "");
-SYSCTL_INT(_kern, KERN_NGROUPS, ngroups,
- CTLFLAG_RD | CTLFLAG_KERN,
- NULL, NGROUPS_MAX, "");
-SYSCTL_INT(_kern, KERN_JOB_CONTROL, job_control,
- CTLFLAG_RD | CTLFLAG_KERN,
- NULL, 1, "");
-#if 1 /* _POSIX_SAVED_IDS from <unistd.h> */
-SYSCTL_INT(_kern, KERN_SAVED_IDS, saved_ids,
- CTLFLAG_RD | CTLFLAG_KERN,
- NULL, 1, "");
+ CTLFLAG_LOCKED | CTLFLAG_RD | CTLFLAG_KERN | CTLTYPE_STRING,
+ NULL, 0,
+ sysctl_sysctl_bootargs, "A", "bootargs");
+
+STATIC int
+sysctl_kernelcacheuuid(struct sysctl_oid *oidp, void *arg1, int arg2, struct sysctl_req *req)
+{
+ int rval = ENOENT;
+ if (kernelcache_uuid_valid) {
+ rval = sysctl_handle_string(oidp, arg1, arg2, req);
+ }
+ return rval;
+}
+
+SYSCTL_PROC(_kern, OID_AUTO, kernelcacheuuid,
+ CTLFLAG_RD | CTLFLAG_KERN | CTLTYPE_STRING | CTLFLAG_LOCKED,
+ kernelcache_uuid_string, sizeof(kernelcache_uuid_string),
+ sysctl_kernelcacheuuid, "A", "");
+
+SYSCTL_INT(_kern, KERN_MAXFILES, maxfiles,
+ CTLFLAG_RW | CTLFLAG_KERN | CTLFLAG_LOCKED,
+ &maxfiles, 0, "");
+SYSCTL_INT(_kern, KERN_ARGMAX, argmax,
+ CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED,
+ (int *)NULL, ARG_MAX, "");
+SYSCTL_INT(_kern, KERN_POSIX1, posix1version,
+ CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED,
+ (int *)NULL, _POSIX_VERSION, "");
+SYSCTL_INT(_kern, KERN_NGROUPS, ngroups,
+ CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED,
+ (int *)NULL, NGROUPS_MAX, "");
+SYSCTL_INT(_kern, KERN_JOB_CONTROL, job_control,
+ CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED,
+ (int *)NULL, 1, "");
+#if 1 /* _POSIX_SAVED_IDS from <unistd.h> */
+SYSCTL_INT(_kern, KERN_SAVED_IDS, saved_ids,
+ CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED,
+ (int *)NULL, 1, "");
#else
-SYSCTL_INT(_kern, KERN_SAVED_IDS, saved_ids,
- CTLFLAG_RD | CTLFLAG_KERN,
- NULL, 0, "");
+SYSCTL_INT(_kern, KERN_SAVED_IDS, saved_ids,
+ CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED,
+ NULL, 0, "");
#endif
-
-static int
-sysctl_maxvnodes (__unused struct sysctl_oid *oidp, __unused void *arg1, __unused int arg2, struct sysctl_req *req)
+SYSCTL_INT(_kern, OID_AUTO, num_files,
+ CTLFLAG_RD | CTLFLAG_LOCKED,
+ &nfiles, 0, "");
+SYSCTL_COMPAT_INT(_kern, OID_AUTO, num_vnodes,
+ CTLFLAG_RD | CTLFLAG_LOCKED,
+ &numvnodes, 0, "");
+SYSCTL_INT(_kern, OID_AUTO, num_tasks,
+ CTLFLAG_RD | CTLFLAG_LOCKED,
+ &task_max, 0, "");
+SYSCTL_INT(_kern, OID_AUTO, num_threads,
+ CTLFLAG_RD | CTLFLAG_LOCKED,
+ &thread_max, 0, "");
+SYSCTL_INT(_kern, OID_AUTO, num_taskthreads,
+ CTLFLAG_RD | CTLFLAG_LOCKED,
+ &task_threadmax, 0, "");
+SYSCTL_LONG(_kern, OID_AUTO, num_recycledvnodes,
+ CTLFLAG_RD | CTLFLAG_LOCKED,
+ &num_recycledvnodes, "");
+
+STATIC int
+sysctl_maxvnodes(__unused struct sysctl_oid *oidp, __unused void *arg1, __unused int arg2, struct sysctl_req *req)
{
- unsigned int oldval = desiredvnodes;
+ int oldval = desiredvnodes;
int error = sysctl_io_number(req, desiredvnodes, sizeof(int), &desiredvnodes, NULL);
- reset_vmobjectcache(oldval, desiredvnodes);
- resize_namecache(desiredvnodes);
- return(error);
+
+ if (oldval != desiredvnodes) {
+ resize_namecache(desiredvnodes);
+ }
+
+ return error;
}
+SYSCTL_INT(_kern, OID_AUTO, namecache_disabled,
+ CTLFLAG_RW | CTLFLAG_LOCKED,
+ &nc_disabled, 0, "");
+
SYSCTL_PROC(_kern, KERN_MAXVNODES, maxvnodes,
- CTLTYPE_INT | CTLFLAG_RW,
- 0, 0, sysctl_maxvnodes, "I", "");
+ CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_LOCKED,
+ 0, 0, sysctl_maxvnodes, "I", "");
SYSCTL_PROC(_kern, KERN_MAXPROC, maxproc,
- CTLTYPE_INT | CTLFLAG_RW,
- 0, 0, sysctl_maxproc, "I", "");
+ CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_LOCKED,
+ 0, 0, sysctl_maxproc, "I", "");
SYSCTL_PROC(_kern, KERN_AIOMAX, aiomax,
- CTLTYPE_INT | CTLFLAG_RW,
- 0, 0, sysctl_aiomax, "I", "");
+ CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_LOCKED,
+ 0, 0, sysctl_aiomax, "I", "");
SYSCTL_PROC(_kern, KERN_AIOPROCMAX, aioprocmax,
- CTLTYPE_INT | CTLFLAG_RW,
- 0, 0, sysctl_aioprocmax, "I", "");
+ CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_LOCKED,
+ 0, 0, sysctl_aioprocmax, "I", "");
SYSCTL_PROC(_kern, KERN_AIOTHREADS, aiothreads,
- CTLTYPE_INT | CTLFLAG_RW,
- 0, 0, sysctl_aiothreads, "I", "");
+ CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_LOCKED,
+ 0, 0, sysctl_aiothreads, "I", "");
+
+SYSCTL_PROC(_kern, OID_AUTO, sched_enable_smt,
+ CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_KERN,
+ 0, 0, sysctl_sched_enable_smt, "I", "");
+
+extern int sched_allow_NO_SMT_threads;
+SYSCTL_INT(_kern, OID_AUTO, sched_allow_NO_SMT_threads,
+ CTLFLAG_KERN | CTLFLAG_RW | CTLFLAG_LOCKED,
+ &sched_allow_NO_SMT_threads, 0, "");
+
+#if (DEVELOPMENT || DEBUG)
+extern int sched_smt_balance;
+SYSCTL_INT(_kern, OID_AUTO, sched_smt_balance,
+ CTLFLAG_KERN | CTLFLAG_RW | CTLFLAG_LOCKED,
+ &sched_smt_balance, 0, "");
+extern int sched_allow_rt_smt;
+SYSCTL_INT(_kern, OID_AUTO, sched_allow_rt_smt,
+ CTLFLAG_KERN | CTLFLAG_RW | CTLFLAG_LOCKED,
+ &sched_allow_rt_smt, 0, "");
+extern int sched_avoid_cpu0;
+SYSCTL_INT(_kern, OID_AUTO, sched_avoid_cpu0,
+ CTLFLAG_KERN | CTLFLAG_RW | CTLFLAG_LOCKED,
+ &sched_avoid_cpu0, 0, "");
+#if __arm__ || __arm64__
+extern uint32_t perfcontrol_requested_recommended_cores;
+SYSCTL_UINT(_kern, OID_AUTO, sched_recommended_cores,
+ CTLFLAG_KERN | CTLFLAG_RD | CTLFLAG_LOCKED,
+ &perfcontrol_requested_recommended_cores, 0, "");
+
+/* Scheduler perfcontrol callouts sysctls */
+SYSCTL_DECL(_kern_perfcontrol_callout);
+SYSCTL_NODE(_kern, OID_AUTO, perfcontrol_callout, CTLFLAG_RW | CTLFLAG_LOCKED, 0,
+ "scheduler perfcontrol callouts");
+
+extern int perfcontrol_callout_stats_enabled;
+SYSCTL_INT(_kern_perfcontrol_callout, OID_AUTO, stats_enabled,
+ CTLFLAG_KERN | CTLFLAG_RW | CTLFLAG_LOCKED,
+ &perfcontrol_callout_stats_enabled, 0, "");
+
+extern uint64_t perfcontrol_callout_stat_avg(perfcontrol_callout_type_t type,
+ perfcontrol_callout_stat_t stat);
+
+/* On-Core Callout */
+STATIC int
+sysctl_perfcontrol_callout_stat
+(__unused struct sysctl_oid *oidp, void *arg1, int arg2, struct sysctl_req *req)
+{
+ perfcontrol_callout_stat_t stat = (perfcontrol_callout_stat_t)arg1;
+ perfcontrol_callout_type_t type = (perfcontrol_callout_type_t)arg2;
+ return sysctl_io_number(req, (int)perfcontrol_callout_stat_avg(type, stat),
+ sizeof(int), NULL, NULL);
+}
-static int
+SYSCTL_PROC(_kern_perfcontrol_callout, OID_AUTO, oncore_instr,
+ CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_LOCKED,
+ (void *)PERFCONTROL_STAT_INSTRS, PERFCONTROL_CALLOUT_ON_CORE,
+ sysctl_perfcontrol_callout_stat, "I", "");
+SYSCTL_PROC(_kern_perfcontrol_callout, OID_AUTO, oncore_cycles,
+ CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_LOCKED,
+ (void *)PERFCONTROL_STAT_CYCLES, PERFCONTROL_CALLOUT_ON_CORE,
+ sysctl_perfcontrol_callout_stat, "I", "");
+SYSCTL_PROC(_kern_perfcontrol_callout, OID_AUTO, offcore_instr,
+ CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_LOCKED,
+ (void *)PERFCONTROL_STAT_INSTRS, PERFCONTROL_CALLOUT_OFF_CORE,
+ sysctl_perfcontrol_callout_stat, "I", "");
+SYSCTL_PROC(_kern_perfcontrol_callout, OID_AUTO, offcore_cycles,
+ CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_LOCKED,
+ (void *)PERFCONTROL_STAT_CYCLES, PERFCONTROL_CALLOUT_OFF_CORE,
+ sysctl_perfcontrol_callout_stat, "I", "");
+SYSCTL_PROC(_kern_perfcontrol_callout, OID_AUTO, context_instr,
+ CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_LOCKED,
+ (void *)PERFCONTROL_STAT_INSTRS, PERFCONTROL_CALLOUT_CONTEXT,
+ sysctl_perfcontrol_callout_stat, "I", "");
+SYSCTL_PROC(_kern_perfcontrol_callout, OID_AUTO, context_cycles,
+ CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_LOCKED,
+ (void *)PERFCONTROL_STAT_CYCLES, PERFCONTROL_CALLOUT_CONTEXT,
+ sysctl_perfcontrol_callout_stat, "I", "");
+SYSCTL_PROC(_kern_perfcontrol_callout, OID_AUTO, update_instr,
+ CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_LOCKED,
+ (void *)PERFCONTROL_STAT_INSTRS, PERFCONTROL_CALLOUT_STATE_UPDATE,
+ sysctl_perfcontrol_callout_stat, "I", "");
+SYSCTL_PROC(_kern_perfcontrol_callout, OID_AUTO, update_cycles,
+ CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_LOCKED,
+ (void *)PERFCONTROL_STAT_CYCLES, PERFCONTROL_CALLOUT_STATE_UPDATE,
+ sysctl_perfcontrol_callout_stat, "I", "");
+
+#if __AMP__
+extern int sched_amp_idle_steal;
+SYSCTL_INT(_kern, OID_AUTO, sched_amp_idle_steal,
+ CTLFLAG_KERN | CTLFLAG_RW | CTLFLAG_LOCKED,
+ &sched_amp_idle_steal, 0, "");
+extern int sched_amp_spill_steal;
+SYSCTL_INT(_kern, OID_AUTO, sched_amp_spill_steal,
+ CTLFLAG_KERN | CTLFLAG_RW | CTLFLAG_LOCKED,
+ &sched_amp_spill_steal, 0, "");
+extern int sched_amp_spill_count;
+SYSCTL_INT(_kern, OID_AUTO, sched_amp_spill_count,
+ CTLFLAG_KERN | CTLFLAG_RW | CTLFLAG_LOCKED,
+ &sched_amp_spill_count, 0, "");
+extern int sched_amp_spill_deferred_ipi;
+SYSCTL_INT(_kern, OID_AUTO, sched_amp_spill_deferred_ipi,
+ CTLFLAG_KERN | CTLFLAG_RW | CTLFLAG_LOCKED,
+ &sched_amp_spill_deferred_ipi, 0, "");
+extern int sched_amp_pcores_preempt_immediate_ipi;
+SYSCTL_INT(_kern, OID_AUTO, sched_amp_pcores_preempt_immediate_ipi,
+ CTLFLAG_KERN | CTLFLAG_RW | CTLFLAG_LOCKED,
+ &sched_amp_pcores_preempt_immediate_ipi, 0, "");
+#endif /* __AMP__ */
+#endif /* __arm__ || __arm64__ */
+
+#if __arm64__
+extern int legacy_footprint_entitlement_mode;
+SYSCTL_INT(_kern, OID_AUTO, legacy_footprint_entitlement_mode,
+ CTLFLAG_KERN | CTLFLAG_RD | CTLFLAG_LOCKED,
+ &legacy_footprint_entitlement_mode, 0, "");
+#endif /* __arm64__ */
+
+#endif /* (DEVELOPMENT || DEBUG) */
+
+STATIC int
sysctl_securelvl
(__unused struct sysctl_oid *oidp, __unused void *arg1, __unused int arg2, struct sysctl_req *req)
{
error = EPERM;
}
}
- return(error);
+ return error;
}
SYSCTL_PROC(_kern, KERN_SECURELVL, securelevel,
- CTLTYPE_INT | CTLFLAG_RW,
- 0, 0, sysctl_securelvl, "I", "");
+ CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_LOCKED,
+ 0, 0, sysctl_securelvl, "I", "");
-static int
+STATIC int
sysctl_domainname
(__unused struct sysctl_oid *oidp, __unused void *arg1, __unused int arg2, struct sysctl_req *req)
{
int error, changed;
- error = sysctl_io_string(req, domainname, sizeof(domainname), 0, &changed);
- if (changed) {
- domainnamelen = strlen(domainname);
+ char tmpname[MAXHOSTNAMELEN] = {};
+
+ lck_mtx_lock(&domainname_lock);
+ strlcpy(tmpname, domainname, sizeof(tmpname));
+ lck_mtx_unlock(&domainname_lock);
+
+ error = sysctl_io_string(req, tmpname, sizeof(tmpname), 0, &changed);
+ if (!error && changed) {
+ lck_mtx_lock(&hostname_lock);
+ strlcpy(domainname, tmpname, sizeof(domainname));
+ lck_mtx_unlock(&hostname_lock);
}
- return(error);
+ return error;
}
SYSCTL_PROC(_kern, KERN_DOMAINNAME, nisdomainname,
- CTLTYPE_STRING | CTLFLAG_RW,
- 0, 0, sysctl_domainname, "A", "");
+ CTLTYPE_STRING | CTLFLAG_RW | CTLFLAG_LOCKED,
+ 0, 0, sysctl_domainname, "A", "");
-SYSCTL_INT(_kern, KERN_HOSTID, hostid,
- CTLFLAG_RW | CTLFLAG_KERN,
- &hostid, 0, "");
+SYSCTL_COMPAT_INT(_kern, KERN_HOSTID, hostid,
+ CTLFLAG_RW | CTLFLAG_KERN | CTLFLAG_LOCKED,
+ &hostid, 0, "");
-static int
+STATIC int
sysctl_hostname
(__unused struct sysctl_oid *oidp, __unused void *arg1, __unused int arg2, struct sysctl_req *req)
{
int error, changed;
- error = sysctl_io_string(req, hostname, sizeof(hostname), 1, &changed);
- if (changed) {
- hostnamelen = req->newlen;
+ char tmpname[MAXHOSTNAMELEN] = {};
+
+ lck_mtx_lock(&hostname_lock);
+ strlcpy(tmpname, hostname, sizeof(tmpname));
+ lck_mtx_unlock(&hostname_lock);
+
+ error = sysctl_io_string(req, tmpname, sizeof(tmpname), 1, &changed);
+ if (!error && changed) {
+ lck_mtx_lock(&hostname_lock);
+ strlcpy(hostname, tmpname, sizeof(hostname));
+ lck_mtx_unlock(&hostname_lock);
}
- return(error);
+ return error;
}
-
SYSCTL_PROC(_kern, KERN_HOSTNAME, hostname,
- CTLTYPE_STRING | CTLFLAG_RW,
- 0, 0, sysctl_hostname, "A", "");
+ CTLTYPE_STRING | CTLFLAG_RW | CTLFLAG_LOCKED,
+ 0, 0, sysctl_hostname, "A", "");
-static int
+STATIC int
sysctl_procname
(__unused struct sysctl_oid *oidp, __unused void *arg1, __unused int arg2, struct sysctl_req *req)
{
/* Original code allowed writing, I'm copying this, although this all makes
- no sense to me. Besides, this sysctl is never used. */
- return sysctl_io_string(req, &req->p->p_name[0], (2*MAXCOMLEN+1), 1, NULL);
+ * no sense to me. Besides, this sysctl is never used. */
+ return sysctl_io_string(req, &req->p->p_name[0], (2 * MAXCOMLEN + 1), 1, NULL);
}
SYSCTL_PROC(_kern, KERN_PROCNAME, procname,
- CTLTYPE_STRING | CTLFLAG_RW | CTLFLAG_ANYBODY,
- 0, 0, sysctl_procname, "A", "");
+ CTLTYPE_STRING | CTLFLAG_RW | CTLFLAG_ANYBODY | CTLFLAG_LOCKED,
+ 0, 0, sysctl_procname, "A", "");
-SYSCTL_INT(_kern, KERN_SPECULATIVE_READS, speculative_reads_disabled,
- CTLFLAG_RW | CTLFLAG_KERN,
- &speculative_reads_disabled, 0, "");
+SYSCTL_INT(_kern, KERN_SPECULATIVE_READS, speculative_reads_disabled,
+ CTLFLAG_RW | CTLFLAG_KERN | CTLFLAG_LOCKED,
+ &speculative_reads_disabled, 0, "");
-static int
+SYSCTL_UINT(_kern, OID_AUTO, preheat_max_bytes,
+ CTLFLAG_RW | CTLFLAG_KERN | CTLFLAG_LOCKED,
+ &preheat_max_bytes, 0, "");
+
+SYSCTL_UINT(_kern, OID_AUTO, preheat_min_bytes,
+ CTLFLAG_RW | CTLFLAG_KERN | CTLFLAG_LOCKED,
+ &preheat_min_bytes, 0, "");
+
+SYSCTL_UINT(_kern, OID_AUTO, speculative_prefetch_max,
+ CTLFLAG_RW | CTLFLAG_KERN | CTLFLAG_LOCKED,
+ &speculative_prefetch_max, 0, "");
+
+SYSCTL_UINT(_kern, OID_AUTO, speculative_prefetch_max_iosize,
+ CTLFLAG_RW | CTLFLAG_KERN | CTLFLAG_LOCKED,
+ &speculative_prefetch_max_iosize, 0, "");
+
+SYSCTL_UINT(_kern, OID_AUTO, vm_page_free_target,
+ CTLFLAG_RW | CTLFLAG_KERN | CTLFLAG_LOCKED,
+ &vm_page_free_target, 0, "");
+
+SYSCTL_UINT(_kern, OID_AUTO, vm_page_free_min,
+ CTLFLAG_RW | CTLFLAG_KERN | CTLFLAG_LOCKED,
+ &vm_page_free_min, 0, "");
+
+SYSCTL_UINT(_kern, OID_AUTO, vm_page_free_reserved,
+ CTLFLAG_RW | CTLFLAG_KERN | CTLFLAG_LOCKED,
+ &vm_page_free_reserved, 0, "");
+
+SYSCTL_UINT(_kern, OID_AUTO, vm_page_speculative_percentage,
+ CTLFLAG_RW | CTLFLAG_KERN | CTLFLAG_LOCKED,
+ &vm_pageout_state.vm_page_speculative_percentage, 0, "");
+
+SYSCTL_UINT(_kern, OID_AUTO, vm_page_speculative_q_age_ms,
+ CTLFLAG_RW | CTLFLAG_KERN | CTLFLAG_LOCKED,
+ &vm_pageout_state.vm_page_speculative_q_age_ms, 0, "");
+
+SYSCTL_UINT(_kern, OID_AUTO, vm_max_delayed_work_limit,
+ CTLFLAG_RW | CTLFLAG_KERN | CTLFLAG_LOCKED,
+ &vm_max_delayed_work_limit, 0, "");
+
+SYSCTL_UINT(_kern, OID_AUTO, vm_max_batch,
+ CTLFLAG_RW | CTLFLAG_KERN | CTLFLAG_LOCKED,
+ &vm_max_batch, 0, "");
+
+SYSCTL_STRING(_kern, OID_AUTO, bootsessionuuid,
+ CTLFLAG_RD | CTLFLAG_LOCKED,
+ &bootsessionuuid_string, sizeof(bootsessionuuid_string), "");
+
+STATIC int
sysctl_boottime
(__unused struct sysctl_oid *oidp, __unused void *arg1, __unused int arg2, struct sysctl_req *req)
{
- struct timeval t;
-
- t.tv_sec = boottime_sec();
- t.tv_usec = 0;
+ struct timeval tv;
+ boottime_timeval(&tv);
+ struct proc *p = req->p;
- return sysctl_io_opaque(req, &t, sizeof(t), NULL);
+ if (proc_is64bit(p)) {
+ struct user64_timeval t = {};
+ t.tv_sec = tv.tv_sec;
+ t.tv_usec = tv.tv_usec;
+ return sysctl_io_opaque(req, &t, sizeof(t), NULL);
+ } else {
+ struct user32_timeval t = {};
+ t.tv_sec = tv.tv_sec;
+ t.tv_usec = tv.tv_usec;
+ return sysctl_io_opaque(req, &t, sizeof(t), NULL);
+ }
}
SYSCTL_PROC(_kern, KERN_BOOTTIME, boottime,
- CTLTYPE_STRUCT | CTLFLAG_RD,
- 0, 0, sysctl_boottime, "S,timeval", "");
+ CTLTYPE_STRUCT | CTLFLAG_KERN | CTLFLAG_RD | CTLFLAG_LOCKED,
+ 0, 0, sysctl_boottime, "S,timeval", "");
-static int
+STATIC int
sysctl_symfile
(__unused struct sysctl_oid *oidp, __unused void *arg1, __unused int arg2, struct sysctl_req *req)
{
char *str;
int error = get_kernel_symfile(req->p, &str);
- if (error)
- return (error);
+ if (error) {
+ return error;
+ }
return sysctl_io_string(req, str, 0, 0, NULL);
}
SYSCTL_PROC(_kern, KERN_SYMFILE, symfile,
- CTLTYPE_STRING | CTLFLAG_RD,
- 0, 0, sysctl_symfile, "A", "");
+ CTLTYPE_STRING | CTLFLAG_RD | CTLFLAG_LOCKED,
+ 0, 0, sysctl_symfile, "A", "");
-#if NFSCLIENT
-static int
+#if CONFIG_NFS_CLIENT
+STATIC int
sysctl_netboot
(__unused struct sysctl_oid *oidp, __unused void *arg1, __unused int arg2, struct sysctl_req *req)
{
}
SYSCTL_PROC(_kern, KERN_NETBOOT, netboot,
- CTLTYPE_INT | CTLFLAG_RD,
- 0, 0, sysctl_netboot, "I", "");
+ CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_LOCKED,
+ 0, 0, sysctl_netboot, "I", "");
#endif
-static int
+#ifdef CONFIG_IMGSRC_ACCESS
+/*
+ * Legacy--act as if only one layer of nesting is possible.
+ */
+STATIC int
+sysctl_imgsrcdev
+(__unused struct sysctl_oid *oidp, __unused void *arg1, __unused int arg2, struct sysctl_req *req)
+{
+ vfs_context_t ctx = vfs_context_current();
+ vnode_t devvp;
+ int result;
+
+ if (!vfs_context_issuser(ctx)) {
+ return EPERM;
+ }
+
+ if (imgsrc_rootvnodes[0] == NULL) {
+ return ENOENT;
+ }
+
+ result = vnode_getwithref(imgsrc_rootvnodes[0]);
+ if (result != 0) {
+ return result;
+ }
+
+ devvp = vnode_mount(imgsrc_rootvnodes[0])->mnt_devvp;
+ result = vnode_getwithref(devvp);
+ if (result != 0) {
+ goto out;
+ }
+
+ result = sysctl_io_number(req, vnode_specrdev(devvp), sizeof(dev_t), NULL, NULL);
+
+ vnode_put(devvp);
+out:
+ vnode_put(imgsrc_rootvnodes[0]);
+ return result;
+}
+
+SYSCTL_PROC(_kern, OID_AUTO, imgsrcdev,
+ CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_LOCKED,
+ 0, 0, sysctl_imgsrcdev, "I", "");
+
+STATIC int
+sysctl_imgsrcinfo
+(__unused struct sysctl_oid *oidp, __unused void *arg1, __unused int arg2, struct sysctl_req *req)
+{
+ int error;
+ struct imgsrc_info info[MAX_IMAGEBOOT_NESTING] = {}; /* 2 for now, no problem */
+ uint32_t i;
+ vnode_t rvp, devvp;
+
+ if (imgsrc_rootvnodes[0] == NULLVP) {
+ return ENXIO;
+ }
+
+ for (i = 0; i < MAX_IMAGEBOOT_NESTING; i++) {
+ /*
+ * Go get the root vnode.
+ */
+ rvp = imgsrc_rootvnodes[i];
+ if (rvp == NULLVP) {
+ break;
+ }
+
+ error = vnode_get(rvp);
+ if (error != 0) {
+ return error;
+ }
+
+ /*
+ * For now, no getting at a non-local volume.
+ */
+ devvp = vnode_mount(rvp)->mnt_devvp;
+ if (devvp == NULL) {
+ vnode_put(rvp);
+ return EINVAL;
+ }
+
+ error = vnode_getwithref(devvp);
+ if (error != 0) {
+ vnode_put(rvp);
+ return error;
+ }
+
+ /*
+ * Fill in info.
+ */
+ info[i].ii_dev = vnode_specrdev(devvp);
+ info[i].ii_flags = 0;
+ info[i].ii_height = i;
+ bzero(info[i].ii_reserved, sizeof(info[i].ii_reserved));
+
+ vnode_put(devvp);
+ vnode_put(rvp);
+ }
+
+ return sysctl_io_opaque(req, info, i * sizeof(info[0]), NULL);
+}
+
+SYSCTL_PROC(_kern, OID_AUTO, imgsrcinfo,
+ CTLTYPE_OPAQUE | CTLFLAG_RD | CTLFLAG_LOCKED,
+ 0, 0, sysctl_imgsrcinfo, "I", "");
+
+#endif /* CONFIG_IMGSRC_ACCESS */
+
+
+SYSCTL_DECL(_kern_timer);
+SYSCTL_NODE(_kern, OID_AUTO, timer, CTLFLAG_RW | CTLFLAG_LOCKED, 0, "timer");
+
+
+SYSCTL_INT(_kern_timer, OID_AUTO, coalescing_enabled,
+ CTLFLAG_KERN | CTLFLAG_RW | CTLFLAG_LOCKED,
+ &mach_timer_coalescing_enabled, 0, "");
+
+SYSCTL_QUAD(_kern_timer, OID_AUTO, deadline_tracking_bin_1,
+ CTLFLAG_RW | CTLFLAG_LOCKED,
+ &timer_deadline_tracking_bin_1, "");
+SYSCTL_QUAD(_kern_timer, OID_AUTO, deadline_tracking_bin_2,
+ CTLFLAG_RW | CTLFLAG_LOCKED,
+ &timer_deadline_tracking_bin_2, "");
+
+SYSCTL_DECL(_kern_timer_longterm);
+SYSCTL_NODE(_kern_timer, OID_AUTO, longterm, CTLFLAG_RW | CTLFLAG_LOCKED, 0, "longterm");
+
+
+/* Must match definition in osfmk/kern/timer_call.c */
+enum {
+ THRESHOLD, QCOUNT,
+ ENQUEUES, DEQUEUES, ESCALATES, SCANS, PREEMPTS,
+ LATENCY, LATENCY_MIN, LATENCY_MAX, SCAN_LIMIT, SCAN_INTERVAL, PAUSES
+};
+extern uint64_t timer_sysctl_get(int);
+extern int timer_sysctl_set(int, uint64_t);
+
+STATIC int
+sysctl_timer
+(__unused struct sysctl_oid *oidp, __unused void *arg1, __unused int arg2, struct sysctl_req *req)
+{
+ int oid = (int)arg1;
+ uint64_t value = timer_sysctl_get(oid);
+ uint64_t new_value;
+ int error;
+ int changed;
+
+ error = sysctl_io_number(req, value, sizeof(value), &new_value, &changed);
+ if (changed) {
+ error = timer_sysctl_set(oid, new_value);
+ }
+
+ return error;
+}
+
+SYSCTL_PROC(_kern_timer_longterm, OID_AUTO, threshold,
+ CTLTYPE_QUAD | CTLFLAG_RW | CTLFLAG_LOCKED,
+ (void *) THRESHOLD, 0, sysctl_timer, "Q", "");
+SYSCTL_PROC(_kern_timer_longterm, OID_AUTO, scan_limit,
+ CTLTYPE_QUAD | CTLFLAG_RW | CTLFLAG_LOCKED,
+ (void *) SCAN_LIMIT, 0, sysctl_timer, "Q", "");
+SYSCTL_PROC(_kern_timer_longterm, OID_AUTO, scan_interval,
+ CTLTYPE_QUAD | CTLFLAG_RW | CTLFLAG_LOCKED,
+ (void *) SCAN_INTERVAL, 0, sysctl_timer, "Q", "");
+
+SYSCTL_PROC(_kern_timer_longterm, OID_AUTO, qlen,
+ CTLTYPE_QUAD | CTLFLAG_RD | CTLFLAG_LOCKED,
+ (void *) QCOUNT, 0, sysctl_timer, "Q", "");
+SYSCTL_PROC(_kern_timer_longterm, OID_AUTO, scan_pauses,
+ CTLTYPE_QUAD | CTLFLAG_RD | CTLFLAG_LOCKED,
+ (void *) PAUSES, 0, sysctl_timer, "Q", "");
+
+#if DEBUG
+SYSCTL_PROC(_kern_timer_longterm, OID_AUTO, enqueues,
+ CTLTYPE_QUAD | CTLFLAG_RD | CTLFLAG_LOCKED,
+ (void *) ENQUEUES, 0, sysctl_timer, "Q", "");
+SYSCTL_PROC(_kern_timer_longterm, OID_AUTO, dequeues,
+ CTLTYPE_QUAD | CTLFLAG_RD | CTLFLAG_LOCKED,
+ (void *) DEQUEUES, 0, sysctl_timer, "Q", "");
+SYSCTL_PROC(_kern_timer_longterm, OID_AUTO, escalates,
+ CTLTYPE_QUAD | CTLFLAG_RD | CTLFLAG_LOCKED,
+ (void *) ESCALATES, 0, sysctl_timer, "Q", "");
+SYSCTL_PROC(_kern_timer_longterm, OID_AUTO, scans,
+ CTLTYPE_QUAD | CTLFLAG_RD | CTLFLAG_LOCKED,
+ (void *) SCANS, 0, sysctl_timer, "Q", "");
+SYSCTL_PROC(_kern_timer_longterm, OID_AUTO, preempts,
+ CTLTYPE_QUAD | CTLFLAG_RD | CTLFLAG_LOCKED,
+ (void *) PREEMPTS, 0, sysctl_timer, "Q", "");
+SYSCTL_PROC(_kern_timer_longterm, OID_AUTO, latency,
+ CTLTYPE_QUAD | CTLFLAG_RD | CTLFLAG_LOCKED,
+ (void *) LATENCY, 0, sysctl_timer, "Q", "");
+SYSCTL_PROC(_kern_timer_longterm, OID_AUTO, latency_min,
+ CTLTYPE_QUAD | CTLFLAG_RD | CTLFLAG_LOCKED,
+ (void *) LATENCY_MIN, 0, sysctl_timer, "Q", "");
+SYSCTL_PROC(_kern_timer_longterm, OID_AUTO, latency_max,
+ CTLTYPE_QUAD | CTLFLAG_RD | CTLFLAG_LOCKED,
+ (void *) LATENCY_MAX, 0, sysctl_timer, "Q", "");
+#endif /* DEBUG */
+
+STATIC int
sysctl_usrstack
(__unused struct sysctl_oid *oidp, __unused void *arg1, __unused int arg2, struct sysctl_req *req)
{
return sysctl_io_number(req, (int)req->p->user_stack, sizeof(int), NULL, NULL);
}
-SYSCTL_PROC(_kern, KERN_USRSTACK, usrstack,
- CTLTYPE_INT | CTLFLAG_RD,
- 0, 0, sysctl_usrstack, "I", "");
+SYSCTL_PROC(_kern, KERN_USRSTACK32, usrstack,
+ CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_LOCKED,
+ 0, 0, sysctl_usrstack, "I", "");
-static int
+STATIC int
sysctl_usrstack64
(__unused struct sysctl_oid *oidp, __unused void *arg1, __unused int arg2, struct sysctl_req *req)
{
}
SYSCTL_PROC(_kern, KERN_USRSTACK64, usrstack64,
- CTLTYPE_QUAD | CTLFLAG_RD,
- 0, 0, sysctl_usrstack64, "Q", "");
+ CTLTYPE_QUAD | CTLFLAG_RD | CTLFLAG_LOCKED,
+ 0, 0, sysctl_usrstack64, "Q", "");
-SYSCTL_STRING(_kern, KERN_COREFILE, corefile,
- CTLFLAG_RW | CTLFLAG_KERN,
- corefilename, sizeof(corefilename), "");
+#if CONFIG_COREDUMP
-static int
+SYSCTL_STRING(_kern, KERN_COREFILE, corefile,
+ CTLFLAG_RW | CTLFLAG_KERN | CTLFLAG_LOCKED,
+ corefilename, sizeof(corefilename), "");
+
+STATIC int
sysctl_coredump
(__unused struct sysctl_oid *oidp, __unused void *arg1, __unused int arg2, struct sysctl_req *req)
{
#ifdef SECURE_KERNEL
- return (ENOTSUP);
-#endif
+ (void)req;
+ return ENOTSUP;
+#else
int new_value, changed;
int error = sysctl_io_number(req, do_coredump, sizeof(int), &new_value, &changed);
if (changed) {
- if ((new_value == 0) || (new_value == 1))
+ if ((new_value == 0) || (new_value == 1)) {
do_coredump = new_value;
- else
+ } else {
error = EINVAL;
+ }
}
- return(error);
+ return error;
+#endif
}
SYSCTL_PROC(_kern, KERN_COREDUMP, coredump,
- CTLTYPE_INT | CTLFLAG_RW,
- 0, 0, sysctl_coredump, "I", "");
+ CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_LOCKED,
+ 0, 0, sysctl_coredump, "I", "");
-static int
+STATIC int
sysctl_suid_coredump
(__unused struct sysctl_oid *oidp, __unused void *arg1, __unused int arg2, struct sysctl_req *req)
{
#ifdef SECURE_KERNEL
- return (ENOTSUP);
-#endif
+ (void)req;
+ return ENOTSUP;
+#else
int new_value, changed;
int error = sysctl_io_number(req, sugid_coredump, sizeof(int), &new_value, &changed);
if (changed) {
- if ((new_value == 0) || (new_value == 1))
+ if ((new_value == 0) || (new_value == 1)) {
sugid_coredump = new_value;
- else
+ } else {
error = EINVAL;
+ }
}
- return(error);
+ return error;
+#endif
}
SYSCTL_PROC(_kern, KERN_SUGID_COREDUMP, sugid_coredump,
- CTLTYPE_INT | CTLFLAG_RW,
- 0, 0, sysctl_suid_coredump, "I", "");
+ CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_LOCKED,
+ 0, 0, sysctl_suid_coredump, "I", "");
-static int
+#endif /* CONFIG_COREDUMP */
+
+STATIC int
sysctl_delayterm
(__unused struct sysctl_oid *oidp, __unused void *arg1, __unused int arg2, struct sysctl_req *req)
{
int error = sysctl_io_number(req, (req->p->p_lflag & P_LDELAYTERM)? 1: 0, sizeof(int), &new_value, &changed);
if (changed) {
proc_lock(p);
- if (new_value)
+ if (new_value) {
req->p->p_lflag |= P_LDELAYTERM;
- else
+ } else {
req->p->p_lflag &= ~P_LDELAYTERM;
+ }
proc_unlock(p);
}
- return(error);
+ return error;
}
SYSCTL_PROC(_kern, KERN_PROCDELAYTERM, delayterm,
- CTLTYPE_INT | CTLFLAG_RW,
- 0, 0, sysctl_delayterm, "I", "");
-
-static int
-sysctl_proc_low_pri_io
-(__unused struct sysctl_oid *oidp, __unused void *arg1, __unused int arg2, struct sysctl_req *req)
-{
- struct proc *p = req->p;
- int new_value, old_value, changed;
- int error;
-
- proc_lock(p);
- switch (req->p->p_iopol_disk) {
- case IOPOL_DEFAULT:
- case IOPOL_NORMAL:
- old_value = 0;
- break;
- case IOPOL_THROTTLE:
- old_value = 1;
- break;
- case IOPOL_PASSIVE:
- old_value = 2;
- break;
- default:
- /*\ 5 this should never happen, but to be robust, return the default value */
- old_value = 0;
- break;
- }
- proc_unlock(p);
-
- error = sysctl_io_number(req, old_value, sizeof(int), &new_value, &changed);
- if (changed) {
- proc_lock(p);
- if (new_value & 0x01)
- req->p->p_iopol_disk = IOPOL_THROTTLE;
- else if (new_value & 0x02)
- req->p->p_iopol_disk = IOPOL_PASSIVE;
- else if (new_value == 0)
- req->p->p_iopol_disk = IOPOL_NORMAL;
- proc_unlock(p);
- }
- return(error);
-}
+ CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_LOCKED,
+ 0, 0, sysctl_delayterm, "I", "");
-SYSCTL_PROC(_kern, KERN_PROC_LOW_PRI_IO, proc_low_pri_io,
- CTLTYPE_INT | CTLFLAG_RW,
- 0, 0, sysctl_proc_low_pri_io, "I", "");
-static int
+STATIC int
sysctl_rage_vnode
(__unused struct sysctl_oid *oidp, __unused void *arg1, __unused int arg2, struct sysctl_req *req)
{
struct proc *p = req->p;
- struct uthread *ut;
+ struct uthread *ut;
int new_value, old_value, changed;
int error;
ut = get_bsdthread_info(current_thread());
- if (ut->uu_flag & UT_RAGE_VNODES)
- old_value = KERN_RAGE_THREAD;
- else if (p->p_lflag & P_LRAGE_VNODES)
- old_value = KERN_RAGE_PROC;
- else
- old_value = 0;
+ if (ut->uu_flag & UT_RAGE_VNODES) {
+ old_value = KERN_RAGE_THREAD;
+ } else if (p->p_lflag & P_LRAGE_VNODES) {
+ old_value = KERN_RAGE_PROC;
+ } else {
+ old_value = 0;
+ }
error = sysctl_io_number(req, old_value, sizeof(int), &new_value, &changed);
- if (error == 0) {
- switch (new_value) {
+ if ((error == 0) && (changed != 0)) {
+ switch (new_value) {
case KERN_RAGE_PROC:
- proc_lock(p);
+ proc_lock(p);
p->p_lflag |= P_LRAGE_VNODES;
proc_unlock(p);
break;
case KERN_UNRAGE_PROC:
- proc_lock(p);
+ proc_lock(p);
p->p_lflag &= ~P_LRAGE_VNODES;
proc_unlock(p);
break;
ut->uu_flag |= UT_RAGE_VNODES;
break;
case KERN_UNRAGE_THREAD:
- ut = get_bsdthread_info(current_thread());
+ ut = get_bsdthread_info(current_thread());
ut->uu_flag &= ~UT_RAGE_VNODES;
break;
}
}
- return(error);
+ return error;
}
SYSCTL_PROC(_kern, KERN_RAGEVNODE, rage_vnode,
- CTLTYPE_INT | CTLFLAG_RW,
- 0, 0, sysctl_rage_vnode, "I", "");
-
+ CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_ANYBODY | CTLFLAG_LOCKED,
+ 0, 0, sysctl_rage_vnode, "I", "");
-static int
-sysctl_kern_check_openevt
+/* XXX until filecoordinationd fixes a bit of inverted logic. */
+STATIC int
+sysctl_vfsnspace
(__unused struct sysctl_oid *oidp, __unused void *arg1, __unused int arg2, struct sysctl_req *req)
{
- struct proc *p = req->p;
- int new_value, old_value, changed;
- int error;
+ int old_value = 0, new_value, changed;
- if (p->p_flag & P_CHECKOPENEVT) {
+ return sysctl_io_number(req, old_value, sizeof(int), &new_value,
+ &changed);
+}
+
+SYSCTL_PROC(_kern, OID_AUTO, vfsnspace,
+ CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_ANYBODY | CTLFLAG_LOCKED,
+ 0, 0, sysctl_vfsnspace, "I", "");
+
+/* XXX move this interface into libproc and remove this sysctl */
+STATIC int
+sysctl_setthread_cpupercent
+(__unused struct sysctl_oid *oidp, __unused void *arg1, __unused int arg2, struct sysctl_req *req)
+{
+ int new_value, old_value;
+ int error = 0;
+ kern_return_t kret = KERN_SUCCESS;
+ uint8_t percent = 0;
+ int ms_refill = 0;
+
+ if (!req->newptr) {
+ return 0;
+ }
+
+ old_value = 0;
+
+ if ((error = sysctl_io_number(req, old_value, sizeof(old_value), &new_value, NULL)) != 0) {
+ return error;
+ }
+
+ percent = new_value & 0xff; /* low 8 bytes for perent */
+ ms_refill = (new_value >> 8) & 0xffffff; /* upper 24bytes represent ms refill value */
+ if (percent > 100) {
+ return EINVAL;
+ }
+
+ /*
+ * If the caller is specifying a percentage of 0, this will unset the CPU limit, if present.
+ */
+ if ((kret = thread_set_cpulimit(THREAD_CPULIMIT_BLOCK, percent, ms_refill * (int)NSEC_PER_MSEC)) != 0) {
+ return EIO;
+ }
+
+ return 0;
+}
+
+SYSCTL_PROC(_kern, OID_AUTO, setthread_cpupercent,
+ CTLTYPE_INT | CTLFLAG_WR | CTLFLAG_ANYBODY,
+ 0, 0, sysctl_setthread_cpupercent, "I", "set thread cpu percentage limit");
+
+
+STATIC int
+sysctl_kern_check_openevt
+(__unused struct sysctl_oid *oidp, __unused void *arg1, __unused int arg2, struct sysctl_req *req)
+{
+ struct proc *p = req->p;
+ int new_value, old_value, changed;
+ int error;
+
+ if (p->p_flag & P_CHECKOPENEVT) {
old_value = KERN_OPENEVT_PROC;
} else {
- old_value = 0;
+ old_value = 0;
}
error = sysctl_io_number(req, old_value, sizeof(int), &new_value, &changed);
- if (error == 0) {
- switch (new_value) {
+ if ((error == 0) && (changed != 0)) {
+ switch (new_value) {
case KERN_OPENEVT_PROC:
- OSBitOrAtomic(P_CHECKOPENEVT, (UInt32 *)&p->p_flag);
+ OSBitOrAtomic(P_CHECKOPENEVT, &p->p_flag);
break;
case KERN_UNOPENEVT_PROC:
- OSBitAndAtomic(~((uint32_t)P_CHECKOPENEVT), (UInt32 *)&p->p_flag);
+ OSBitAndAtomic(~((uint32_t)P_CHECKOPENEVT), &p->p_flag);
break;
default:
error = EINVAL;
}
}
- return(error);
+ return error;
}
-SYSCTL_PROC(_kern, KERN_CHECKOPENEVT, check_openevt, CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_ANYBODY,
- 0, 0, sysctl_kern_check_openevt, "I", "set the per-process check-open-evt flag");
+SYSCTL_PROC(_kern, KERN_CHECKOPENEVT, check_openevt, CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_ANYBODY | CTLFLAG_LOCKED,
+ 0, 0, sysctl_kern_check_openevt, "I", "set the per-process check-open-evt flag");
-
-static int
+#if DEVELOPMENT || DEBUG
+STATIC int
sysctl_nx
(__unused struct sysctl_oid *oidp, __unused void *arg1, __unused int arg2, struct sysctl_req *req)
{
#ifdef SECURE_KERNEL
+ (void)req;
return ENOTSUP;
-#endif
+#else
int new_value, changed;
int error;
error = sysctl_io_number(req, nx_enabled, sizeof(nx_enabled), &new_value, &changed);
- if (error)
+ if (error) {
return error;
+ }
if (changed) {
-#ifdef __i386__
+#if defined(__x86_64__)
/*
* Only allow setting if NX is supported on the chip
*/
- if (!(cpuid_extfeatures() & CPUID_EXTFEATURE_XD))
+ if (!(cpuid_extfeatures() & CPUID_EXTFEATURE_XD)) {
return ENOTSUP;
+ }
#endif
nx_enabled = new_value;
}
- return(error);
+ return error;
+#endif /* SECURE_KERNEL */
}
+#endif
+#if DEVELOPMENT || DEBUG
+SYSCTL_PROC(_kern, KERN_NX_PROTECTION, nx,
+ CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_KERN | CTLFLAG_LOCKED,
+ 0, 0, sysctl_nx, "I", "");
+#endif
-
-SYSCTL_PROC(_kern, KERN_NX_PROTECTION, nx,
- CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_KERN,
- 0, 0, sysctl_nx, "I", "");
-
-static int
+STATIC int
sysctl_loadavg
(__unused struct sysctl_oid *oidp, __unused void *arg1, __unused int arg2, struct sysctl_req *req)
{
- if (proc_is64bit(req->p)) {
- struct user_loadavg loadinfo64;
- loadavg32to64(&averunnable, &loadinfo64);
- return sysctl_io_opaque(req, &loadinfo64, sizeof(loadinfo64), NULL);
- } else {
- return sysctl_io_opaque(req, &averunnable, sizeof(averunnable), NULL);
- }
+ if (proc_is64bit(req->p)) {
+ struct user64_loadavg loadinfo64 = {};
+ fill_loadavg64(&averunnable, &loadinfo64);
+ return sysctl_io_opaque(req, &loadinfo64, sizeof(loadinfo64), NULL);
+ } else {
+ struct user32_loadavg loadinfo32 = {};
+ fill_loadavg32(&averunnable, &loadinfo32);
+ return sysctl_io_opaque(req, &loadinfo32, sizeof(loadinfo32), NULL);
+ }
}
SYSCTL_PROC(_vm, VM_LOADAVG, loadavg,
- CTLTYPE_STRUCT | CTLFLAG_RD,
- 0, 0, sysctl_loadavg, "S,loadavg", "");
+ CTLTYPE_STRUCT | CTLFLAG_RD | CTLFLAG_LOCKED,
+ 0, 0, sysctl_loadavg, "S,loadavg", "");
-static int
+/*
+ * Note: Thread safe; vm_map_lock protects in vm_toggle_entry_reuse()
+ */
+STATIC int
+sysctl_vm_toggle_address_reuse(__unused struct sysctl_oid *oidp, __unused void *arg1,
+ __unused int arg2, struct sysctl_req *req)
+{
+ int old_value = 0, new_value = 0, error = 0;
+
+ if (vm_toggle_entry_reuse( VM_TOGGLE_GETVALUE, &old_value )) {
+ return error;
+ }
+ error = sysctl_io_number(req, old_value, sizeof(int), &new_value, NULL);
+ if (!error) {
+ return vm_toggle_entry_reuse(new_value, NULL);
+ }
+ return error;
+}
+
+SYSCTL_PROC(_debug, OID_AUTO, toggle_address_reuse, CTLFLAG_ANYBODY | CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_LOCKED, 0, 0, sysctl_vm_toggle_address_reuse, "I", "");
+
+#ifdef CONFIG_XNUPOST
+
+extern int xnupost_export_testdata(void *outp, uint32_t size, uint32_t *lenp);
+extern uint32_t xnupost_get_estimated_testdata_size(void);
+
+extern int xnupost_reset_all_tests(void);
+
+STATIC int
+sysctl_handle_xnupost_get_tests SYSCTL_HANDLER_ARGS
+{
+ /* fixup unused arguments warnings */
+ __unused int _oa2 = arg2;
+ __unused void * _oa1 = arg1;
+ __unused struct sysctl_oid * _oidp = oidp;
+
+ int error = 0;
+ user_addr_t oldp = 0;
+ user_addr_t newp = 0;
+ uint32_t usedbytes = 0;
+
+ oldp = req->oldptr;
+ newp = req->newptr;
+
+ if (newp) {
+ return ENOTSUP;
+ }
+
+ if ((void *)oldp == NULL) {
+ /* return estimated size for second call where info can be placed */
+ req->oldidx = xnupost_get_estimated_testdata_size();
+ } else {
+ error = xnupost_export_testdata((void *)oldp, req->oldlen, &usedbytes);
+ req->oldidx = usedbytes;
+ }
+
+ return error;
+}
+
+SYSCTL_PROC(_debug,
+ OID_AUTO,
+ xnupost_get_tests,
+ CTLFLAG_MASKED | CTLFLAG_ANYBODY | CTLTYPE_OPAQUE | CTLFLAG_RD | CTLFLAG_LOCKED,
+ 0,
+ 0,
+ sysctl_handle_xnupost_get_tests,
+ "-",
+ "read xnupost test data in kernel");
+
+STATIC int
+sysctl_debug_xnupost_ctl SYSCTL_HANDLER_ARGS
+{
+ /* fixup unused arguments warnings */
+ __unused int _oa2 = arg2;
+ __unused void * _oa1 = arg1;
+ __unused struct sysctl_oid * _oidp = oidp;
+
+#define ARRCOUNT 4
+ /*
+ * INPUT: ACTION, PARAM1, PARAM2, PARAM3
+ * OUTPUT: RESULTCODE, ADDITIONAL DATA
+ */
+ int32_t outval[ARRCOUNT] = {0};
+ int32_t input[ARRCOUNT] = {0};
+ int32_t out_size = sizeof(outval);
+ int32_t in_size = sizeof(input);
+ int error = 0;
+
+ /* if this is NULL call to find out size, send out size info */
+ if (!req->newptr) {
+ goto out;
+ }
+
+ /* pull in provided value from userspace */
+ error = SYSCTL_IN(req, &input[0], in_size);
+ if (error) {
+ return error;
+ }
+
+ if (input[0] == XTCTL_RESET_TESTDATA) {
+ outval[0] = xnupost_reset_all_tests();
+ goto out;
+ }
+
+out:
+ error = SYSCTL_OUT(req, &outval[0], out_size);
+ return error;
+}
+
+SYSCTL_PROC(_debug,
+ OID_AUTO,
+ xnupost_testctl,
+ CTLFLAG_MASKED | CTLFLAG_ANYBODY | CTLTYPE_OPAQUE | CTLFLAG_RW | CTLFLAG_LOCKED,
+ 0,
+ 0,
+ sysctl_debug_xnupost_ctl,
+ "I",
+ "xnupost control for kernel testing");
+
+extern void test_oslog_handleOSLogCtl(int32_t * in, int32_t * out, int32_t arraycount);
+
+STATIC int
+sysctl_debug_test_oslog_ctl(__unused struct sysctl_oid * oidp, __unused void * arg1, __unused int arg2, struct sysctl_req * req)
+{
+#define ARRCOUNT 4
+ int32_t outval[ARRCOUNT] = {0};
+ int32_t input[ARRCOUNT] = {0};
+ int32_t size_outval = sizeof(outval);
+ int32_t size_inval = sizeof(input);
+ int32_t error;
+
+ /* if this is NULL call to find out size, send out size info */
+ if (!req->newptr) {
+ error = SYSCTL_OUT(req, &outval[0], size_outval);
+ return error;
+ }
+
+ /* pull in provided value from userspace */
+ error = SYSCTL_IN(req, &input[0], size_inval);
+ if (error) {
+ return error;
+ }
+
+ test_oslog_handleOSLogCtl(input, outval, ARRCOUNT);
+
+ error = SYSCTL_OUT(req, &outval[0], size_outval);
+
+ return error;
+}
+
+SYSCTL_PROC(_debug,
+ OID_AUTO,
+ test_OSLogCtl,
+ CTLFLAG_MASKED | CTLFLAG_ANYBODY | CTLTYPE_OPAQUE | CTLFLAG_RW | CTLFLAG_LOCKED,
+ 0,
+ 0,
+ sysctl_debug_test_oslog_ctl,
+ "I",
+ "testing oslog in kernel");
+
+#include <mach/task.h>
+#include <mach/semaphore.h>
+
+extern lck_grp_t * sysctl_debug_test_stackshot_owner_grp; /* used for both mutexes and rwlocks */
+extern lck_mtx_t * sysctl_debug_test_stackshot_owner_init_mtx; /* used to protect lck_*_init */
+
+/* This is a sysctl for testing collection of owner info on a lock in kernel space. A multi-threaded
+ * test from userland sets this sysctl in such a way that a thread blocks in kernel mode, and a
+ * stackshot is taken to see if the owner of the lock can be identified.
+ *
+ * We can't return to userland with a kernel lock held, so be sure to unlock before we leave.
+ * the semaphores allow us to artificially create cases where the lock is being held and the
+ * thread is hanging / taking a long time to do something. */
+
+volatile char sysctl_debug_test_stackshot_mtx_inited = 0;
+semaphore_t sysctl_debug_test_stackshot_mutex_sem;
+lck_mtx_t sysctl_debug_test_stackshot_owner_lck;
+
+#define SYSCTL_DEBUG_MTX_ACQUIRE_WAIT 1
+#define SYSCTL_DEBUG_MTX_ACQUIRE_NOWAIT 2
+#define SYSCTL_DEBUG_MTX_SIGNAL 3
+#define SYSCTL_DEBUG_MTX_TEARDOWN 4
+
+STATIC int
+sysctl_debug_test_stackshot_mutex_owner(__unused struct sysctl_oid *oidp, __unused void *arg1, __unused int arg2, struct sysctl_req *req)
+{
+ long long option = -1;
+ /* if the user tries to read the sysctl, we tell them what the address of the lock is (to test against stackshot's output) */
+ long long mtx_unslid_addr = (long long)VM_KERNEL_UNSLIDE_OR_PERM(&sysctl_debug_test_stackshot_owner_lck);
+ int error = sysctl_io_number(req, mtx_unslid_addr, sizeof(long long), (void*)&option, NULL);
+
+ lck_mtx_lock(sysctl_debug_test_stackshot_owner_init_mtx);
+ if (!sysctl_debug_test_stackshot_mtx_inited) {
+ lck_mtx_init(&sysctl_debug_test_stackshot_owner_lck,
+ sysctl_debug_test_stackshot_owner_grp,
+ LCK_ATTR_NULL);
+ semaphore_create(kernel_task,
+ &sysctl_debug_test_stackshot_mutex_sem,
+ SYNC_POLICY_FIFO, 0);
+ sysctl_debug_test_stackshot_mtx_inited = 1;
+ }
+ lck_mtx_unlock(sysctl_debug_test_stackshot_owner_init_mtx);
+
+ if (!error) {
+ switch (option) {
+ case SYSCTL_DEBUG_MTX_ACQUIRE_NOWAIT:
+ lck_mtx_lock(&sysctl_debug_test_stackshot_owner_lck);
+ lck_mtx_unlock(&sysctl_debug_test_stackshot_owner_lck);
+ break;
+ case SYSCTL_DEBUG_MTX_ACQUIRE_WAIT:
+ lck_mtx_lock(&sysctl_debug_test_stackshot_owner_lck);
+ semaphore_wait(sysctl_debug_test_stackshot_mutex_sem);
+ lck_mtx_unlock(&sysctl_debug_test_stackshot_owner_lck);
+ break;
+ case SYSCTL_DEBUG_MTX_SIGNAL:
+ semaphore_signal(sysctl_debug_test_stackshot_mutex_sem);
+ break;
+ case SYSCTL_DEBUG_MTX_TEARDOWN:
+ lck_mtx_lock(sysctl_debug_test_stackshot_owner_init_mtx);
+
+ lck_mtx_destroy(&sysctl_debug_test_stackshot_owner_lck,
+ sysctl_debug_test_stackshot_owner_grp);
+ semaphore_destroy(kernel_task,
+ sysctl_debug_test_stackshot_mutex_sem);
+ sysctl_debug_test_stackshot_mtx_inited = 0;
+
+ lck_mtx_unlock(sysctl_debug_test_stackshot_owner_init_mtx);
+ break;
+ case -1: /* user just wanted to read the value, so do nothing */
+ break;
+ default:
+ error = EINVAL;
+ break;
+ }
+ }
+ return error;
+}
+
+/* we can't return to userland with a kernel rwlock held, so be sure to unlock before we leave.
+ * the semaphores allow us to artificially create cases where the lock is being held and the
+ * thread is hanging / taking a long time to do something. */
+
+SYSCTL_PROC(_debug,
+ OID_AUTO,
+ test_MutexOwnerCtl,
+ CTLFLAG_MASKED | CTLFLAG_ANYBODY | CTLTYPE_QUAD | CTLFLAG_RW | CTLFLAG_LOCKED,
+ 0,
+ 0,
+ sysctl_debug_test_stackshot_mutex_owner,
+ "-",
+ "Testing mutex owner in kernel");
+
+volatile char sysctl_debug_test_stackshot_rwlck_inited = 0;
+lck_rw_t sysctl_debug_test_stackshot_owner_rwlck;
+semaphore_t sysctl_debug_test_stackshot_rwlck_sem;
+
+#define SYSCTL_DEBUG_KRWLCK_RACQUIRE_NOWAIT 1
+#define SYSCTL_DEBUG_KRWLCK_RACQUIRE_WAIT 2
+#define SYSCTL_DEBUG_KRWLCK_WACQUIRE_NOWAIT 3
+#define SYSCTL_DEBUG_KRWLCK_WACQUIRE_WAIT 4
+#define SYSCTL_DEBUG_KRWLCK_SIGNAL 5
+#define SYSCTL_DEBUG_KRWLCK_TEARDOWN 6
+
+STATIC int
+sysctl_debug_test_stackshot_rwlck_owner(__unused struct sysctl_oid *oidp, __unused void *arg1, __unused int arg2, struct sysctl_req *req)
+{
+ long long option = -1;
+ /* if the user tries to read the sysctl, we tell them what the address of the lock is
+ * (to test against stackshot's output) */
+ long long rwlck_unslid_addr = (long long)VM_KERNEL_UNSLIDE_OR_PERM(&sysctl_debug_test_stackshot_owner_rwlck);
+ int error = sysctl_io_number(req, rwlck_unslid_addr, sizeof(long long), (void*)&option, NULL);
+
+ lck_mtx_lock(sysctl_debug_test_stackshot_owner_init_mtx);
+ if (!sysctl_debug_test_stackshot_rwlck_inited) {
+ lck_rw_init(&sysctl_debug_test_stackshot_owner_rwlck,
+ sysctl_debug_test_stackshot_owner_grp,
+ LCK_ATTR_NULL);
+ semaphore_create(kernel_task,
+ &sysctl_debug_test_stackshot_rwlck_sem,
+ SYNC_POLICY_FIFO,
+ 0);
+ sysctl_debug_test_stackshot_rwlck_inited = 1;
+ }
+ lck_mtx_unlock(sysctl_debug_test_stackshot_owner_init_mtx);
+
+ if (!error) {
+ switch (option) {
+ case SYSCTL_DEBUG_KRWLCK_RACQUIRE_NOWAIT:
+ lck_rw_lock(&sysctl_debug_test_stackshot_owner_rwlck, LCK_RW_TYPE_SHARED);
+ lck_rw_unlock(&sysctl_debug_test_stackshot_owner_rwlck, LCK_RW_TYPE_SHARED);
+ break;
+ case SYSCTL_DEBUG_KRWLCK_RACQUIRE_WAIT:
+ lck_rw_lock(&sysctl_debug_test_stackshot_owner_rwlck, LCK_RW_TYPE_SHARED);
+ semaphore_wait(sysctl_debug_test_stackshot_rwlck_sem);
+ lck_rw_unlock(&sysctl_debug_test_stackshot_owner_rwlck, LCK_RW_TYPE_SHARED);
+ break;
+ case SYSCTL_DEBUG_KRWLCK_WACQUIRE_NOWAIT:
+ lck_rw_lock(&sysctl_debug_test_stackshot_owner_rwlck, LCK_RW_TYPE_EXCLUSIVE);
+ lck_rw_unlock(&sysctl_debug_test_stackshot_owner_rwlck, LCK_RW_TYPE_EXCLUSIVE);
+ break;
+ case SYSCTL_DEBUG_KRWLCK_WACQUIRE_WAIT:
+ lck_rw_lock(&sysctl_debug_test_stackshot_owner_rwlck, LCK_RW_TYPE_EXCLUSIVE);
+ semaphore_wait(sysctl_debug_test_stackshot_rwlck_sem);
+ lck_rw_unlock(&sysctl_debug_test_stackshot_owner_rwlck, LCK_RW_TYPE_EXCLUSIVE);
+ break;
+ case SYSCTL_DEBUG_KRWLCK_SIGNAL:
+ semaphore_signal(sysctl_debug_test_stackshot_rwlck_sem);
+ break;
+ case SYSCTL_DEBUG_KRWLCK_TEARDOWN:
+ lck_mtx_lock(sysctl_debug_test_stackshot_owner_init_mtx);
+
+ lck_rw_destroy(&sysctl_debug_test_stackshot_owner_rwlck,
+ sysctl_debug_test_stackshot_owner_grp);
+ semaphore_destroy(kernel_task,
+ sysctl_debug_test_stackshot_rwlck_sem);
+ sysctl_debug_test_stackshot_rwlck_inited = 0;
+
+ lck_mtx_unlock(sysctl_debug_test_stackshot_owner_init_mtx);
+ break;
+ case -1: /* user just wanted to read the value, so do nothing */
+ break;
+ default:
+ error = EINVAL;
+ break;
+ }
+ }
+ return error;
+}
+
+
+SYSCTL_PROC(_debug,
+ OID_AUTO,
+ test_RWLockOwnerCtl,
+ CTLFLAG_MASKED | CTLFLAG_ANYBODY | CTLTYPE_QUAD | CTLFLAG_RW | CTLFLAG_LOCKED,
+ 0,
+ 0,
+ sysctl_debug_test_stackshot_rwlck_owner,
+ "-",
+ "Testing rwlock owner in kernel");
+#endif /* !CONFIG_XNUPOST */
+
+STATIC int
sysctl_swapusage
(__unused struct sysctl_oid *oidp, __unused void *arg1, __unused int arg2, struct sysctl_req *req)
{
- int error;
- uint64_t swap_total;
- uint64_t swap_avail;
- uint32_t swap_pagesize;
- boolean_t swap_encrypted;
- struct xsw_usage xsu;
-
- error = macx_swapinfo(&swap_total,
- &swap_avail,
- &swap_pagesize,
- &swap_encrypted);
- if (error)
- return error;
+ int error;
+ uint64_t swap_total;
+ uint64_t swap_avail;
+ vm_size_t swap_pagesize;
+ boolean_t swap_encrypted;
+ struct xsw_usage xsu = {};
+
+ error = macx_swapinfo(&swap_total,
+ &swap_avail,
+ &swap_pagesize,
+ &swap_encrypted);
+ if (error) {
+ return error;
+ }
- xsu.xsu_total = swap_total;
- xsu.xsu_avail = swap_avail;
- xsu.xsu_used = swap_total - swap_avail;
- xsu.xsu_pagesize = swap_pagesize;
- xsu.xsu_encrypted = swap_encrypted;
- return sysctl_io_opaque(req, &xsu, sizeof(xsu), NULL);
+ xsu.xsu_total = swap_total;
+ xsu.xsu_avail = swap_avail;
+ xsu.xsu_used = swap_total - swap_avail;
+ xsu.xsu_pagesize = swap_pagesize;
+ xsu.xsu_encrypted = swap_encrypted;
+ return sysctl_io_opaque(req, &xsu, sizeof(xsu), NULL);
}
SYSCTL_PROC(_vm, VM_SWAPUSAGE, swapusage,
- CTLTYPE_STRUCT | CTLFLAG_RD,
- 0, 0, sysctl_swapusage, "S,xsw_usage", "");
+ CTLTYPE_STRUCT | CTLFLAG_RD | CTLFLAG_LOCKED,
+ 0, 0, sysctl_swapusage, "S,xsw_usage", "");
+#if CONFIG_FREEZE
+extern void vm_page_reactivate_all_throttled(void);
+extern void memorystatus_disable_freeze(void);
-/* this kernel does NOT implement shared_region_make_private_np() */
-SYSCTL_INT(_kern, KERN_SHREG_PRIVATIZABLE, shreg_private,
- CTLFLAG_RD,
- NULL, 0, "");
-
-#if __i386__
static int
-sysctl_sysctl_exec_affinity(__unused struct sysctl_oid *oidp,
- __unused void *arg1, __unused int arg2,
- struct sysctl_req *req)
+sysctl_freeze_enabled SYSCTL_HANDLER_ARGS
{
- proc_t cur_proc = req->p;
- int error;
-
- if (req->oldptr != USER_ADDR_NULL) {
- cpu_type_t oldcputype = (cur_proc->p_flag & P_AFFINITY) ? CPU_TYPE_POWERPC : CPU_TYPE_I386;
- if ((error = SYSCTL_OUT(req, &oldcputype, sizeof(oldcputype))))
- return error;
+#pragma unused(arg1, arg2)
+ int error, val = memorystatus_freeze_enabled ? 1 : 0;
+ boolean_t disabled;
+
+ error = sysctl_handle_int(oidp, &val, 0, req);
+ if (error || !req->newptr) {
+ return error;
+ }
+
+ if (!VM_CONFIG_FREEZER_SWAP_IS_ACTIVE) {
+ //assert(req->newptr);
+ printf("Failed attempt to set vm.freeze_enabled sysctl\n");
+ return EINVAL;
+ }
+
+ /*
+ * If freeze is being disabled, we need to move dirty pages out from the throttle to the active queue.
+ */
+ disabled = (!val && memorystatus_freeze_enabled);
+
+ memorystatus_freeze_enabled = val ? TRUE : FALSE;
+
+ if (disabled) {
+ vm_page_reactivate_all_throttled();
+ memorystatus_disable_freeze();
}
- if (req->newptr != USER_ADDR_NULL) {
- cpu_type_t newcputype;
- if ((error = SYSCTL_IN(req, &newcputype, sizeof(newcputype))))
- return error;
- if (newcputype == CPU_TYPE_I386)
- OSBitAndAtomic(~((uint32_t)P_AFFINITY), (UInt32 *)&cur_proc->p_flag);
- else if (newcputype == CPU_TYPE_POWERPC)
- OSBitOrAtomic(P_AFFINITY, (UInt32 *)&cur_proc->p_flag);
- else
- return (EINVAL);
- }
-
return 0;
}
-SYSCTL_PROC(_sysctl, OID_AUTO, proc_exec_affinity, CTLTYPE_INT|CTLFLAG_RW|CTLFLAG_ANYBODY, 0, 0, sysctl_sysctl_exec_affinity ,"I","proc_exec_affinity");
-#endif
+
+SYSCTL_PROC(_vm, OID_AUTO, freeze_enabled, CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_ANYBODY, &memorystatus_freeze_enabled, 0, sysctl_freeze_enabled, "I", "");
+#endif /* CONFIG_FREEZE */
+
+#if DEVELOPMENT || DEBUG
+extern int vm_num_swap_files_config;
+extern int vm_num_swap_files;
+extern lck_mtx_t vm_swap_data_lock;
+#define VM_MAX_SWAP_FILE_NUM 100
static int
+sysctl_vm_config_num_swap_files SYSCTL_HANDLER_ARGS
+{
+#pragma unused(arg1, arg2)
+ int error = 0, val = vm_num_swap_files_config;
+
+ error = sysctl_handle_int(oidp, &val, 0, req);
+ if (error || !req->newptr) {
+ goto out;
+ }
+
+ if (!VM_CONFIG_SWAP_IS_ACTIVE && !VM_CONFIG_FREEZER_SWAP_IS_ACTIVE) {
+ printf("Swap is disabled\n");
+ error = EINVAL;
+ goto out;
+ }
+
+ lck_mtx_lock(&vm_swap_data_lock);
+
+ if (val < vm_num_swap_files) {
+ printf("Cannot configure fewer swap files than already exist.\n");
+ error = EINVAL;
+ lck_mtx_unlock(&vm_swap_data_lock);
+ goto out;
+ }
+
+ if (val > VM_MAX_SWAP_FILE_NUM) {
+ printf("Capping number of swap files to upper bound.\n");
+ val = VM_MAX_SWAP_FILE_NUM;
+ }
+
+ vm_num_swap_files_config = val;
+ lck_mtx_unlock(&vm_swap_data_lock);
+out:
+
+ return 0;
+}
+
+SYSCTL_PROC(_debug, OID_AUTO, num_swap_files_configured, CTLFLAG_ANYBODY | CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_LOCKED, 0, 0, sysctl_vm_config_num_swap_files, "I", "");
+#endif /* DEVELOPMENT || DEBUG */
+
+/* this kernel does NOT implement shared_region_make_private_np() */
+SYSCTL_INT(_kern, KERN_SHREG_PRIVATIZABLE, shreg_private,
+ CTLFLAG_RD | CTLFLAG_LOCKED,
+ (int *)NULL, 0, "");
+
+STATIC int
fetch_process_cputype(
proc_t cur_proc,
int *name,
int refheld = 0;
cpu_type_t ret = 0;
int error = 0;
-
- if (namelen == 0)
+
+ if (namelen == 0) {
p = cur_proc;
- else if (namelen == 1) {
+ } else if (namelen == 1) {
p = proc_find(name[0]);
- if (p == NULL)
- return (EINVAL);
+ if (p == NULL) {
+ return EINVAL;
+ }
refheld = 1;
} else {
error = EINVAL;
goto out;
}
-#if __i386__
- if (p->p_flag & P_TRANSLATED) {
- ret = CPU_TYPE_POWERPC;
- }
- else
-#endif
- {
- ret = cpu_type();
- if (IS_64BIT_PROCESS(p))
- ret |= CPU_ARCH_ABI64;
+ ret = cpu_type() & ~CPU_ARCH_MASK;
+ if (IS_64BIT_PROCESS(p)) {
+ ret |= CPU_ARCH_ABI64;
}
+
*cputype = ret;
-
- if (refheld != 0)
+
+ if (refheld != 0) {
proc_rele(p);
+ }
out:
- return (error);
+ return error;
}
-static int
+STATIC int
sysctl_sysctl_native(__unused struct sysctl_oid *oidp, void *arg1, int arg2,
- struct sysctl_req *req)
+ struct sysctl_req *req)
{
int error;
cpu_type_t proc_cputype = 0;
- if ((error = fetch_process_cputype(req->p, (int *)arg1, arg2, &proc_cputype)) != 0)
+ if ((error = fetch_process_cputype(req->p, (int *)arg1, arg2, &proc_cputype)) != 0) {
return error;
+ }
int res = 1;
- if ((proc_cputype & ~CPU_ARCH_MASK) != (cpu_type() & ~CPU_ARCH_MASK))
+ if ((proc_cputype & ~CPU_ARCH_MASK) != (cpu_type() & ~CPU_ARCH_MASK)) {
res = 0;
+ }
return SYSCTL_OUT(req, &res, sizeof(res));
-}
-SYSCTL_PROC(_sysctl, OID_AUTO, proc_native, CTLTYPE_NODE|CTLFLAG_RD, 0, 0, sysctl_sysctl_native ,"I","proc_native");
+}
+SYSCTL_PROC(_sysctl, OID_AUTO, proc_native, CTLTYPE_NODE | CTLFLAG_RD | CTLFLAG_LOCKED, 0, 0, sysctl_sysctl_native, "I", "proc_native");
-static int
+STATIC int
sysctl_sysctl_cputype(__unused struct sysctl_oid *oidp, void *arg1, int arg2,
- struct sysctl_req *req)
+ struct sysctl_req *req)
{
int error;
cpu_type_t proc_cputype = 0;
- if ((error = fetch_process_cputype(req->p, (int *)arg1, arg2, &proc_cputype)) != 0)
+ if ((error = fetch_process_cputype(req->p, (int *)arg1, arg2, &proc_cputype)) != 0) {
return error;
+ }
return SYSCTL_OUT(req, &proc_cputype, sizeof(proc_cputype));
}
-SYSCTL_PROC(_sysctl, OID_AUTO, proc_cputype, CTLTYPE_NODE|CTLFLAG_RD, 0, 0, sysctl_sysctl_cputype ,"I","proc_cputype");
+SYSCTL_PROC(_sysctl, OID_AUTO, proc_cputype, CTLTYPE_NODE | CTLFLAG_RD | CTLFLAG_LOCKED, 0, 0, sysctl_sysctl_cputype, "I", "proc_cputype");
-static int
+STATIC int
sysctl_safeboot
(__unused struct sysctl_oid *oidp, __unused void *arg1, __unused int arg2, struct sysctl_req *req)
{
}
SYSCTL_PROC(_kern, KERN_SAFEBOOT, safeboot,
- CTLTYPE_INT | CTLFLAG_RD,
- 0, 0, sysctl_safeboot, "I", "");
+ CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_LOCKED,
+ 0, 0, sysctl_safeboot, "I", "");
-static int
+STATIC int
sysctl_singleuser
(__unused struct sysctl_oid *oidp, __unused void *arg1, __unused int arg2, struct sysctl_req *req)
{
}
SYSCTL_PROC(_kern, OID_AUTO, singleuser,
- CTLTYPE_INT | CTLFLAG_RD,
- 0, 0, sysctl_singleuser, "I", "");
+ CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_LOCKED,
+ 0, 0, sysctl_singleuser, "I", "");
+
+STATIC int
+sysctl_minimalboot
+(__unused struct sysctl_oid *oidp, __unused void *arg1, __unused int arg2, struct sysctl_req *req)
+{
+ return sysctl_io_number(req, minimalboot, sizeof(int), NULL, NULL);
+}
+
+SYSCTL_PROC(_kern, OID_AUTO, minimalboot,
+ CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_LOCKED,
+ 0, 0, sysctl_minimalboot, "I", "");
/*
* Controls for debugging affinity sets - see osfmk/kern/affinity.c
*/
-extern boolean_t affinity_sets_enabled;
-extern int affinity_sets_mapping;
+extern boolean_t affinity_sets_enabled;
+extern int affinity_sets_mapping;
+
+SYSCTL_INT(_kern, OID_AUTO, affinity_sets_enabled,
+ CTLFLAG_RW | CTLFLAG_LOCKED, (int *) &affinity_sets_enabled, 0, "hinting enabled");
+SYSCTL_INT(_kern, OID_AUTO, affinity_sets_mapping,
+ CTLFLAG_RW | CTLFLAG_LOCKED, &affinity_sets_mapping, 0, "mapping policy");
+
+/*
+ * Boolean indicating if KASLR is active.
+ */
+STATIC int
+sysctl_slide
+(__unused struct sysctl_oid *oidp, __unused void *arg1, __unused int arg2, struct sysctl_req *req)
+{
+ uint32_t slide;
+
+ slide = vm_kernel_slide ? 1 : 0;
-SYSCTL_INT (_kern, OID_AUTO, affinity_sets_enabled,
- CTLFLAG_RW, (int *) &affinity_sets_enabled, 0, "hinting enabled");
-SYSCTL_INT (_kern, OID_AUTO, affinity_sets_mapping,
- CTLFLAG_RW, &affinity_sets_mapping, 0, "mapping policy");
+ return sysctl_io_number( req, slide, sizeof(int), NULL, NULL);
+}
+
+SYSCTL_PROC(_kern, OID_AUTO, slide,
+ CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_LOCKED,
+ 0, 0, sysctl_slide, "I", "");
/*
* Limit on total memory users can wire.
*
- * vm_global_user_wire_limit - system wide limit on wired memory from all processes combined.
+ * vm_global_user_wire_limit - system wide limit on wired memory from all processes combined.
*
- * vm_user_wire_limit - per address space limit on wired memory. This puts a cap on the process's rlimit value.
+ * vm_per_task_user_wire_limit - per address space limit on wired memory. This puts a cap on the process's rlimit value.
*
* These values are initialized to reasonable defaults at boot time based on the available physical memory in
* kmem_init().
* All values are in bytes.
*/
-vm_map_size_t vm_global_user_wire_limit;
-vm_map_size_t vm_user_wire_limit;
+vm_map_size_t vm_global_user_wire_limit;
+vm_map_size_t vm_per_task_user_wire_limit;
+extern uint64_t max_mem;
+
+/*
+ * We used to have a global in the kernel called vm_global_no_user_wire_limit which was the inverse
+ * of vm_global_user_wire_limit. But maintaining both of those is silly, and vm_global_user_wire_limit is the
+ * real limit.
+ * This function is for backwards compatibility with userspace
+ * since we exposed the old global via a sysctl.
+ */
+STATIC int
+sysctl_global_no_user_wire_amount(__unused struct sysctl_oid *oidp, __unused void *arg1, __unused int arg2, struct sysctl_req *req)
+{
+ vm_map_size_t old_value;
+ vm_map_size_t new_value;
+ int changed;
+ int error;
+
+ old_value = max_mem - vm_global_user_wire_limit;
+ error = sysctl_io_number(req, old_value, sizeof(vm_map_size_t), &new_value, &changed);
+ if (changed) {
+ if ((uint64_t)new_value > max_mem) {
+ error = EINVAL;
+ } else {
+ vm_global_user_wire_limit = max_mem - new_value;
+ }
+ }
+ return error;
+}
+/*
+ * There needs to be a more automatic/elegant way to do this
+ */
+#if defined(__ARM__)
+SYSCTL_INT(_vm, OID_AUTO, global_user_wire_limit, CTLFLAG_RW | CTLFLAG_LOCKED, &vm_global_user_wire_limit, 0, "");
+SYSCTL_INT(_vm, OID_AUTO, user_wire_limit, CTLFLAG_RW | CTLFLAG_LOCKED, &vm_per_task_user_wire_limit, 0, "");
+SYSCTL_PROC(_vm, OID_AUTO, global_no_user_wire_amount, CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_LOCKED, 0, 0, &sysctl_global_no_user_wire_amount, "I", "");
+#else
+SYSCTL_QUAD(_vm, OID_AUTO, global_user_wire_limit, CTLFLAG_RW | CTLFLAG_LOCKED, &vm_global_user_wire_limit, "");
+SYSCTL_QUAD(_vm, OID_AUTO, user_wire_limit, CTLFLAG_RW | CTLFLAG_LOCKED, &vm_per_task_user_wire_limit, "");
+SYSCTL_PROC(_vm, OID_AUTO, global_no_user_wire_amount, CTLTYPE_QUAD | CTLFLAG_RW | CTLFLAG_LOCKED, 0, 0, &sysctl_global_no_user_wire_amount, "Q", "");
+#endif
+
+#if DEVELOPMENT || DEBUG
+/* These sysyctls are used to test the wired limit. */
+extern unsigned int vm_page_wire_count;
+extern uint32_t vm_lopage_free_count;
+SYSCTL_INT(_vm, OID_AUTO, page_wire_count, CTLFLAG_RD | CTLFLAG_LOCKED, &vm_page_wire_count, 0, "");
+SYSCTL_INT(_vm, OID_AUTO, lopage_free_count, CTLFLAG_RD | CTLFLAG_LOCKED, &vm_lopage_free_count, 0, "");
+#endif /* DEVELOPMENT */
+
+extern int vm_map_copy_overwrite_aligned_src_not_internal;
+extern int vm_map_copy_overwrite_aligned_src_not_symmetric;
+extern int vm_map_copy_overwrite_aligned_src_large;
+SYSCTL_INT(_vm, OID_AUTO, vm_copy_src_not_internal, CTLFLAG_RD | CTLFLAG_LOCKED, &vm_map_copy_overwrite_aligned_src_not_internal, 0, "");
+SYSCTL_INT(_vm, OID_AUTO, vm_copy_src_not_symmetric, CTLFLAG_RD | CTLFLAG_LOCKED, &vm_map_copy_overwrite_aligned_src_not_symmetric, 0, "");
+SYSCTL_INT(_vm, OID_AUTO, vm_copy_src_large, CTLFLAG_RD | CTLFLAG_LOCKED, &vm_map_copy_overwrite_aligned_src_large, 0, "");
+
+
+extern uint32_t vm_page_external_count;
+
+SYSCTL_INT(_vm, OID_AUTO, vm_page_external_count, CTLFLAG_RD | CTLFLAG_LOCKED, &vm_page_external_count, 0, "");
+
+SYSCTL_INT(_vm, OID_AUTO, vm_page_filecache_min, CTLFLAG_RD | CTLFLAG_LOCKED, &vm_pageout_state.vm_page_filecache_min, 0, "");
+SYSCTL_INT(_vm, OID_AUTO, vm_page_xpmapped_min, CTLFLAG_RD | CTLFLAG_LOCKED, &vm_pageout_state.vm_page_xpmapped_min, 0, "");
+
+#if DEVELOPMENT || DEBUG
+SYSCTL_INT(_vm, OID_AUTO, vm_page_filecache_min_divisor, CTLFLAG_RW | CTLFLAG_LOCKED, &vm_pageout_state.vm_page_filecache_min_divisor, 0, "");
+SYSCTL_INT(_vm, OID_AUTO, vm_page_xpmapped_min_divisor, CTLFLAG_RW | CTLFLAG_LOCKED, &vm_pageout_state.vm_page_xpmapped_min_divisor, 0, "");
+#endif
+
+extern int vm_compressor_mode;
+extern int vm_compressor_is_active;
+extern int vm_compressor_available;
+extern uint32_t vm_ripe_target_age;
+extern uint32_t swapout_target_age;
+extern int64_t compressor_bytes_used;
+extern int64_t c_segment_input_bytes;
+extern int64_t c_segment_compressed_bytes;
+extern uint32_t compressor_eval_period_in_msecs;
+extern uint32_t compressor_sample_min_in_msecs;
+extern uint32_t compressor_sample_max_in_msecs;
+extern uint32_t compressor_thrashing_threshold_per_10msecs;
+extern uint32_t compressor_thrashing_min_per_10msecs;
+extern uint32_t vm_compressor_time_thread;
+
+#if DEVELOPMENT || DEBUG
+extern uint32_t vm_compressor_minorcompact_threshold_divisor;
+extern uint32_t vm_compressor_majorcompact_threshold_divisor;
+extern uint32_t vm_compressor_unthrottle_threshold_divisor;
+extern uint32_t vm_compressor_catchup_threshold_divisor;
+
+extern uint32_t vm_compressor_minorcompact_threshold_divisor_overridden;
+extern uint32_t vm_compressor_majorcompact_threshold_divisor_overridden;
+extern uint32_t vm_compressor_unthrottle_threshold_divisor_overridden;
+extern uint32_t vm_compressor_catchup_threshold_divisor_overridden;
+
+extern vmct_stats_t vmct_stats;
+
+
+STATIC int
+sysctl_minorcompact_threshold_divisor(__unused struct sysctl_oid *oidp, __unused void *arg1, __unused int arg2, struct sysctl_req *req)
+{
+ int new_value, changed;
+ int error = sysctl_io_number(req, vm_compressor_minorcompact_threshold_divisor, sizeof(int), &new_value, &changed);
+
+ if (changed) {
+ vm_compressor_minorcompact_threshold_divisor = new_value;
+ vm_compressor_minorcompact_threshold_divisor_overridden = 1;
+ }
+ return error;
+}
+
+SYSCTL_PROC(_vm, OID_AUTO, compressor_minorcompact_threshold_divisor,
+ CTLTYPE_INT | CTLFLAG_LOCKED | CTLFLAG_RW,
+ 0, 0, sysctl_minorcompact_threshold_divisor, "I", "");
+
+
+STATIC int
+sysctl_majorcompact_threshold_divisor(__unused struct sysctl_oid *oidp, __unused void *arg1, __unused int arg2, struct sysctl_req *req)
+{
+ int new_value, changed;
+ int error = sysctl_io_number(req, vm_compressor_majorcompact_threshold_divisor, sizeof(int), &new_value, &changed);
+
+ if (changed) {
+ vm_compressor_majorcompact_threshold_divisor = new_value;
+ vm_compressor_majorcompact_threshold_divisor_overridden = 1;
+ }
+ return error;
+}
+
+SYSCTL_PROC(_vm, OID_AUTO, compressor_majorcompact_threshold_divisor,
+ CTLTYPE_INT | CTLFLAG_LOCKED | CTLFLAG_RW,
+ 0, 0, sysctl_majorcompact_threshold_divisor, "I", "");
+
+
+STATIC int
+sysctl_unthrottle_threshold_divisor(__unused struct sysctl_oid *oidp, __unused void *arg1, __unused int arg2, struct sysctl_req *req)
+{
+ int new_value, changed;
+ int error = sysctl_io_number(req, vm_compressor_unthrottle_threshold_divisor, sizeof(int), &new_value, &changed);
+
+ if (changed) {
+ vm_compressor_unthrottle_threshold_divisor = new_value;
+ vm_compressor_unthrottle_threshold_divisor_overridden = 1;
+ }
+ return error;
+}
+
+SYSCTL_PROC(_vm, OID_AUTO, compressor_unthrottle_threshold_divisor,
+ CTLTYPE_INT | CTLFLAG_LOCKED | CTLFLAG_RW,
+ 0, 0, sysctl_unthrottle_threshold_divisor, "I", "");
+
+
+STATIC int
+sysctl_catchup_threshold_divisor(__unused struct sysctl_oid *oidp, __unused void *arg1, __unused int arg2, struct sysctl_req *req)
+{
+ int new_value, changed;
+ int error = sysctl_io_number(req, vm_compressor_catchup_threshold_divisor, sizeof(int), &new_value, &changed);
+
+ if (changed) {
+ vm_compressor_catchup_threshold_divisor = new_value;
+ vm_compressor_catchup_threshold_divisor_overridden = 1;
+ }
+ return error;
+}
+
+SYSCTL_PROC(_vm, OID_AUTO, compressor_catchup_threshold_divisor,
+ CTLTYPE_INT | CTLFLAG_LOCKED | CTLFLAG_RW,
+ 0, 0, sysctl_catchup_threshold_divisor, "I", "");
+#endif
+
+
+SYSCTL_QUAD(_vm, OID_AUTO, compressor_input_bytes, CTLFLAG_RD | CTLFLAG_LOCKED, &c_segment_input_bytes, "");
+SYSCTL_QUAD(_vm, OID_AUTO, compressor_compressed_bytes, CTLFLAG_RD | CTLFLAG_LOCKED, &c_segment_compressed_bytes, "");
+SYSCTL_QUAD(_vm, OID_AUTO, compressor_bytes_used, CTLFLAG_RD | CTLFLAG_LOCKED, &compressor_bytes_used, "");
+
+SYSCTL_INT(_vm, OID_AUTO, compressor_mode, CTLFLAG_RD | CTLFLAG_LOCKED, &vm_compressor_mode, 0, "");
+SYSCTL_INT(_vm, OID_AUTO, compressor_is_active, CTLFLAG_RD | CTLFLAG_LOCKED, &vm_compressor_is_active, 0, "");
+SYSCTL_INT(_vm, OID_AUTO, compressor_swapout_target_age, CTLFLAG_RD | CTLFLAG_LOCKED, &swapout_target_age, 0, "");
+SYSCTL_INT(_vm, OID_AUTO, compressor_available, CTLFLAG_RD | CTLFLAG_LOCKED, &vm_compressor_available, 0, "");
+
+extern int min_csegs_per_major_compaction;
+SYSCTL_INT(_vm, OID_AUTO, compressor_min_csegs_per_major_compaction, CTLFLAG_RW | CTLFLAG_LOCKED, &min_csegs_per_major_compaction, 0, "");
+
+SYSCTL_INT(_vm, OID_AUTO, vm_ripe_target_age_in_secs, CTLFLAG_RW | CTLFLAG_LOCKED, &vm_ripe_target_age, 0, "");
+
+SYSCTL_INT(_vm, OID_AUTO, compressor_eval_period_in_msecs, CTLFLAG_RW | CTLFLAG_LOCKED, &compressor_eval_period_in_msecs, 0, "");
+SYSCTL_INT(_vm, OID_AUTO, compressor_sample_min_in_msecs, CTLFLAG_RW | CTLFLAG_LOCKED, &compressor_sample_min_in_msecs, 0, "");
+SYSCTL_INT(_vm, OID_AUTO, compressor_sample_max_in_msecs, CTLFLAG_RW | CTLFLAG_LOCKED, &compressor_sample_max_in_msecs, 0, "");
+SYSCTL_INT(_vm, OID_AUTO, compressor_thrashing_threshold_per_10msecs, CTLFLAG_RW | CTLFLAG_LOCKED, &compressor_thrashing_threshold_per_10msecs, 0, "");
+SYSCTL_INT(_vm, OID_AUTO, compressor_thrashing_min_per_10msecs, CTLFLAG_RW | CTLFLAG_LOCKED, &compressor_thrashing_min_per_10msecs, 0, "");
+
+SYSCTL_STRING(_vm, OID_AUTO, swapfileprefix, CTLFLAG_RW | CTLFLAG_KERN | CTLFLAG_LOCKED, swapfilename, sizeof(swapfilename) - SWAPFILENAME_INDEX_LEN, "");
+
+SYSCTL_INT(_vm, OID_AUTO, compressor_timing_enabled, CTLFLAG_RW | CTLFLAG_LOCKED, &vm_compressor_time_thread, 0, "");
+
+#if DEVELOPMENT || DEBUG
+SYSCTL_QUAD(_vm, OID_AUTO, compressor_thread_runtime0, CTLFLAG_RD | CTLFLAG_LOCKED, &vmct_stats.vmct_runtimes[0], "");
+SYSCTL_QUAD(_vm, OID_AUTO, compressor_thread_runtime1, CTLFLAG_RD | CTLFLAG_LOCKED, &vmct_stats.vmct_runtimes[1], "");
+
+SYSCTL_QUAD(_vm, OID_AUTO, compressor_threads_total, CTLFLAG_RD | CTLFLAG_LOCKED, &vmct_stats.vmct_cthreads_total, "");
+
+SYSCTL_QUAD(_vm, OID_AUTO, compressor_thread_pages0, CTLFLAG_RD | CTLFLAG_LOCKED, &vmct_stats.vmct_pages[0], "");
+SYSCTL_QUAD(_vm, OID_AUTO, compressor_thread_pages1, CTLFLAG_RD | CTLFLAG_LOCKED, &vmct_stats.vmct_pages[1], "");
+
+SYSCTL_QUAD(_vm, OID_AUTO, compressor_thread_iterations0, CTLFLAG_RD | CTLFLAG_LOCKED, &vmct_stats.vmct_iterations[0], "");
+SYSCTL_QUAD(_vm, OID_AUTO, compressor_thread_iterations1, CTLFLAG_RD | CTLFLAG_LOCKED, &vmct_stats.vmct_iterations[1], "");
+
+SYSCTL_INT(_vm, OID_AUTO, compressor_thread_minpages0, CTLFLAG_RD | CTLFLAG_LOCKED, &vmct_stats.vmct_minpages[0], 0, "");
+SYSCTL_INT(_vm, OID_AUTO, compressor_thread_minpages1, CTLFLAG_RD | CTLFLAG_LOCKED, &vmct_stats.vmct_minpages[1], 0, "");
+
+SYSCTL_INT(_vm, OID_AUTO, compressor_thread_maxpages0, CTLFLAG_RD | CTLFLAG_LOCKED, &vmct_stats.vmct_maxpages[0], 0, "");
+SYSCTL_INT(_vm, OID_AUTO, compressor_thread_maxpages1, CTLFLAG_RD | CTLFLAG_LOCKED, &vmct_stats.vmct_maxpages[1], 0, "");
+
+#endif
+
+SYSCTL_QUAD(_vm, OID_AUTO, lz4_compressions, CTLFLAG_RD | CTLFLAG_LOCKED, &compressor_stats.lz4_compressions, "");
+SYSCTL_QUAD(_vm, OID_AUTO, lz4_compression_failures, CTLFLAG_RD | CTLFLAG_LOCKED, &compressor_stats.lz4_compression_failures, "");
+SYSCTL_QUAD(_vm, OID_AUTO, lz4_compressed_bytes, CTLFLAG_RD | CTLFLAG_LOCKED, &compressor_stats.lz4_compressed_bytes, "");
+SYSCTL_QUAD(_vm, OID_AUTO, lz4_wk_compression_delta, CTLFLAG_RD | CTLFLAG_LOCKED, &compressor_stats.lz4_wk_compression_delta, "");
+SYSCTL_QUAD(_vm, OID_AUTO, lz4_wk_compression_negative_delta, CTLFLAG_RD | CTLFLAG_LOCKED, &compressor_stats.lz4_wk_compression_negative_delta, "");
+
+SYSCTL_QUAD(_vm, OID_AUTO, lz4_decompressions, CTLFLAG_RD | CTLFLAG_LOCKED, &compressor_stats.lz4_decompressions, "");
+SYSCTL_QUAD(_vm, OID_AUTO, lz4_decompressed_bytes, CTLFLAG_RD | CTLFLAG_LOCKED, &compressor_stats.lz4_decompressed_bytes, "");
+
+SYSCTL_QUAD(_vm, OID_AUTO, uc_decompressions, CTLFLAG_RD | CTLFLAG_LOCKED, &compressor_stats.uc_decompressions, "");
+
+SYSCTL_QUAD(_vm, OID_AUTO, wk_compressions, CTLFLAG_RD | CTLFLAG_LOCKED, &compressor_stats.wk_compressions, "");
+
+SYSCTL_QUAD(_vm, OID_AUTO, wk_catime, CTLFLAG_RD | CTLFLAG_LOCKED, &compressor_stats.wk_cabstime, "");
+
+SYSCTL_QUAD(_vm, OID_AUTO, wkh_catime, CTLFLAG_RD | CTLFLAG_LOCKED, &compressor_stats.wkh_cabstime, "");
+SYSCTL_QUAD(_vm, OID_AUTO, wkh_compressions, CTLFLAG_RD | CTLFLAG_LOCKED, &compressor_stats.wkh_compressions, "");
+
+SYSCTL_QUAD(_vm, OID_AUTO, wks_catime, CTLFLAG_RD | CTLFLAG_LOCKED, &compressor_stats.wks_cabstime, "");
+SYSCTL_QUAD(_vm, OID_AUTO, wks_compressions, CTLFLAG_RD | CTLFLAG_LOCKED, &compressor_stats.wks_compressions, "");
+
+SYSCTL_QUAD(_vm, OID_AUTO, wk_compressions_exclusive, CTLFLAG_RD | CTLFLAG_LOCKED, &compressor_stats.wk_compressions_exclusive, "");
+SYSCTL_QUAD(_vm, OID_AUTO, wk_sv_compressions, CTLFLAG_RD | CTLFLAG_LOCKED, &compressor_stats.wk_sv_compressions, "");
+SYSCTL_QUAD(_vm, OID_AUTO, wk_mzv_compressions, CTLFLAG_RD | CTLFLAG_LOCKED, &compressor_stats.wk_mzv_compressions, "");
+SYSCTL_QUAD(_vm, OID_AUTO, wk_compression_failures, CTLFLAG_RD | CTLFLAG_LOCKED, &compressor_stats.wk_compression_failures, "");
+SYSCTL_QUAD(_vm, OID_AUTO, wk_compressed_bytes_exclusive, CTLFLAG_RD | CTLFLAG_LOCKED, &compressor_stats.wk_compressed_bytes_exclusive, "");
+SYSCTL_QUAD(_vm, OID_AUTO, wk_compressed_bytes_total, CTLFLAG_RD | CTLFLAG_LOCKED, &compressor_stats.wk_compressed_bytes_total, "");
+
+SYSCTL_QUAD(_vm, OID_AUTO, wks_compressed_bytes, CTLFLAG_RD | CTLFLAG_LOCKED, &compressor_stats.wks_compressed_bytes, "");
+SYSCTL_QUAD(_vm, OID_AUTO, wks_compression_failures, CTLFLAG_RD | CTLFLAG_LOCKED, &compressor_stats.wks_compression_failures, "");
+SYSCTL_QUAD(_vm, OID_AUTO, wks_sv_compressions, CTLFLAG_RD | CTLFLAG_LOCKED, &compressor_stats.wks_sv_compressions, "");
+
+
+SYSCTL_QUAD(_vm, OID_AUTO, wk_decompressions, CTLFLAG_RD | CTLFLAG_LOCKED, &compressor_stats.wk_decompressions, "");
+
+SYSCTL_QUAD(_vm, OID_AUTO, wk_datime, CTLFLAG_RD | CTLFLAG_LOCKED, &compressor_stats.wk_dabstime, "");
+
+SYSCTL_QUAD(_vm, OID_AUTO, wkh_datime, CTLFLAG_RD | CTLFLAG_LOCKED, &compressor_stats.wkh_dabstime, "");
+SYSCTL_QUAD(_vm, OID_AUTO, wkh_decompressions, CTLFLAG_RD | CTLFLAG_LOCKED, &compressor_stats.wkh_decompressions, "");
+
+SYSCTL_QUAD(_vm, OID_AUTO, wks_datime, CTLFLAG_RD | CTLFLAG_LOCKED, &compressor_stats.wks_dabstime, "");
+SYSCTL_QUAD(_vm, OID_AUTO, wks_decompressions, CTLFLAG_RD | CTLFLAG_LOCKED, &compressor_stats.wks_decompressions, "");
+
+SYSCTL_QUAD(_vm, OID_AUTO, wk_decompressed_bytes, CTLFLAG_RD | CTLFLAG_LOCKED, &compressor_stats.wk_decompressed_bytes, "");
+SYSCTL_QUAD(_vm, OID_AUTO, wk_sv_decompressions, CTLFLAG_RD | CTLFLAG_LOCKED, &compressor_stats.wk_sv_decompressions, "");
+
+SYSCTL_INT(_vm, OID_AUTO, lz4_threshold, CTLFLAG_RW | CTLFLAG_LOCKED, &vmctune.lz4_threshold, 0, "");
+SYSCTL_INT(_vm, OID_AUTO, wkdm_reeval_threshold, CTLFLAG_RW | CTLFLAG_LOCKED, &vmctune.wkdm_reeval_threshold, 0, "");
+SYSCTL_INT(_vm, OID_AUTO, lz4_max_failure_skips, CTLFLAG_RW | CTLFLAG_LOCKED, &vmctune.lz4_max_failure_skips, 0, "");
+SYSCTL_INT(_vm, OID_AUTO, lz4_max_failure_run_length, CTLFLAG_RW | CTLFLAG_LOCKED, &vmctune.lz4_max_failure_run_length, 0, "");
+SYSCTL_INT(_vm, OID_AUTO, lz4_max_preselects, CTLFLAG_RW | CTLFLAG_LOCKED, &vmctune.lz4_max_preselects, 0, "");
+SYSCTL_INT(_vm, OID_AUTO, lz4_run_preselection_threshold, CTLFLAG_RW | CTLFLAG_LOCKED, &vmctune.lz4_run_preselection_threshold, 0, "");
+SYSCTL_INT(_vm, OID_AUTO, lz4_run_continue_bytes, CTLFLAG_RW | CTLFLAG_LOCKED, &vmctune.lz4_run_continue_bytes, 0, "");
+SYSCTL_INT(_vm, OID_AUTO, lz4_profitable_bytes, CTLFLAG_RW | CTLFLAG_LOCKED, &vmctune.lz4_profitable_bytes, 0, "");
+#if DEVELOPMENT || DEBUG
+extern int vm_compressor_current_codec;
+extern int vm_compressor_test_seg_wp;
+extern boolean_t vm_compressor_force_sw_wkdm;
+SYSCTL_INT(_vm, OID_AUTO, compressor_codec, CTLFLAG_RW | CTLFLAG_LOCKED, &vm_compressor_current_codec, 0, "");
+SYSCTL_INT(_vm, OID_AUTO, compressor_test_wp, CTLFLAG_RW | CTLFLAG_LOCKED, &vm_compressor_test_seg_wp, 0, "");
+
+SYSCTL_INT(_vm, OID_AUTO, wksw_force, CTLFLAG_RW | CTLFLAG_LOCKED, &vm_compressor_force_sw_wkdm, 0, "");
+extern int precompy, wkswhw;
+
+SYSCTL_INT(_vm, OID_AUTO, precompy, CTLFLAG_RW | CTLFLAG_LOCKED, &precompy, 0, "");
+SYSCTL_INT(_vm, OID_AUTO, wkswhw, CTLFLAG_RW | CTLFLAG_LOCKED, &wkswhw, 0, "");
+extern unsigned int vm_ktrace_enabled;
+SYSCTL_INT(_vm, OID_AUTO, vm_ktrace, CTLFLAG_RW | CTLFLAG_LOCKED, &vm_ktrace_enabled, 0, "");
+#endif
+
+#if CONFIG_PHANTOM_CACHE
+extern uint32_t phantom_cache_thrashing_threshold;
+extern uint32_t phantom_cache_eval_period_in_msecs;
+extern uint32_t phantom_cache_thrashing_threshold_ssd;
+
+
+SYSCTL_INT(_vm, OID_AUTO, phantom_cache_eval_period_in_msecs, CTLFLAG_RW | CTLFLAG_LOCKED, &phantom_cache_eval_period_in_msecs, 0, "");
+SYSCTL_INT(_vm, OID_AUTO, phantom_cache_thrashing_threshold, CTLFLAG_RW | CTLFLAG_LOCKED, &phantom_cache_thrashing_threshold, 0, "");
+SYSCTL_INT(_vm, OID_AUTO, phantom_cache_thrashing_threshold_ssd, CTLFLAG_RW | CTLFLAG_LOCKED, &phantom_cache_thrashing_threshold_ssd, 0, "");
+#endif
+
+#if CONFIG_BACKGROUND_QUEUE
+
+extern uint32_t vm_page_background_count;
+extern uint32_t vm_page_background_target;
+extern uint32_t vm_page_background_internal_count;
+extern uint32_t vm_page_background_external_count;
+extern uint32_t vm_page_background_mode;
+extern uint32_t vm_page_background_exclude_external;
+extern uint64_t vm_page_background_promoted_count;
+extern uint64_t vm_pageout_rejected_bq_internal;
+extern uint64_t vm_pageout_rejected_bq_external;
+
+SYSCTL_INT(_vm, OID_AUTO, vm_page_background_mode, CTLFLAG_RW | CTLFLAG_LOCKED, &vm_page_background_mode, 0, "");
+SYSCTL_INT(_vm, OID_AUTO, vm_page_background_exclude_external, CTLFLAG_RW | CTLFLAG_LOCKED, &vm_page_background_exclude_external, 0, "");
+SYSCTL_INT(_vm, OID_AUTO, vm_page_background_target, CTLFLAG_RW | CTLFLAG_LOCKED, &vm_page_background_target, 0, "");
+SYSCTL_INT(_vm, OID_AUTO, vm_page_background_count, CTLFLAG_RD | CTLFLAG_LOCKED, &vm_page_background_count, 0, "");
+SYSCTL_INT(_vm, OID_AUTO, vm_page_background_internal_count, CTLFLAG_RD | CTLFLAG_LOCKED, &vm_page_background_internal_count, 0, "");
+SYSCTL_INT(_vm, OID_AUTO, vm_page_background_external_count, CTLFLAG_RD | CTLFLAG_LOCKED, &vm_page_background_external_count, 0, "");
+
+SYSCTL_QUAD(_vm, OID_AUTO, vm_page_background_promoted_count, CTLFLAG_RD | CTLFLAG_LOCKED, &vm_page_background_promoted_count, "");
+SYSCTL_QUAD(_vm, OID_AUTO, vm_pageout_considered_bq_internal, CTLFLAG_RD | CTLFLAG_LOCKED, &vm_pageout_vminfo.vm_pageout_considered_bq_internal, "");
+SYSCTL_QUAD(_vm, OID_AUTO, vm_pageout_considered_bq_external, CTLFLAG_RD | CTLFLAG_LOCKED, &vm_pageout_vminfo.vm_pageout_considered_bq_external, "");
+SYSCTL_QUAD(_vm, OID_AUTO, vm_pageout_rejected_bq_internal, CTLFLAG_RD | CTLFLAG_LOCKED, &vm_pageout_rejected_bq_internal, "");
+SYSCTL_QUAD(_vm, OID_AUTO, vm_pageout_rejected_bq_external, CTLFLAG_RD | CTLFLAG_LOCKED, &vm_pageout_rejected_bq_external, "");
+
+#endif /* CONFIG_BACKGROUND_QUEUE */
+
+extern void vm_update_darkwake_mode(boolean_t);
+extern boolean_t vm_darkwake_mode;
+
+STATIC int
+sysctl_toggle_darkwake_mode(__unused struct sysctl_oid *oidp, __unused void *arg1, __unused int arg2, struct sysctl_req *req)
+{
+ int new_value, changed;
+ int error = sysctl_io_number(req, vm_darkwake_mode, sizeof(int), &new_value, &changed);
+
+ if (!error && changed) {
+ if (new_value != 0 && new_value != 1) {
+ printf("Error: Invalid value passed to darkwake sysctl. Acceptable: 0 or 1.\n");
+ error = EINVAL;
+ } else {
+ vm_update_darkwake_mode((boolean_t) new_value);
+ }
+ }
+
+ return error;
+}
+
+SYSCTL_PROC(_vm, OID_AUTO, darkwake_mode,
+ CTLTYPE_INT | CTLFLAG_LOCKED | CTLFLAG_RW,
+ 0, 0, sysctl_toggle_darkwake_mode, "I", "");
+
+#if (DEVELOPMENT || DEBUG)
+
+SYSCTL_UINT(_vm, OID_AUTO, vm_page_creation_throttled_hard,
+ CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED,
+ &vm_page_creation_throttled_hard, 0, "");
+
+SYSCTL_UINT(_vm, OID_AUTO, vm_page_creation_throttled_soft,
+ CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED,
+ &vm_page_creation_throttled_soft, 0, "");
+
+extern uint32_t vm_pageout_memorystatus_fb_factor_nr;
+extern uint32_t vm_pageout_memorystatus_fb_factor_dr;
+SYSCTL_INT(_vm, OID_AUTO, vm_pageout_memorystatus_fb_factor_nr, CTLFLAG_RW | CTLFLAG_LOCKED, &vm_pageout_memorystatus_fb_factor_nr, 0, "");
+SYSCTL_INT(_vm, OID_AUTO, vm_pageout_memorystatus_fb_factor_dr, CTLFLAG_RW | CTLFLAG_LOCKED, &vm_pageout_memorystatus_fb_factor_dr, 0, "");
+
+extern uint32_t vm_grab_anon_nops;
+
+SYSCTL_INT(_vm, OID_AUTO, vm_grab_anon_overrides, CTLFLAG_RW | CTLFLAG_LOCKED, &vm_pageout_debug.vm_grab_anon_overrides, 0, "");
+SYSCTL_INT(_vm, OID_AUTO, vm_grab_anon_nops, CTLFLAG_RW | CTLFLAG_LOCKED, &vm_pageout_debug.vm_grab_anon_nops, 0, "");
+
+/* log message counters for persistence mode */
+extern uint32_t oslog_p_total_msgcount;
+extern uint32_t oslog_p_metadata_saved_msgcount;
+extern uint32_t oslog_p_metadata_dropped_msgcount;
+extern uint32_t oslog_p_error_count;
+extern uint32_t oslog_p_saved_msgcount;
+extern uint32_t oslog_p_dropped_msgcount;
+extern uint32_t oslog_p_boot_dropped_msgcount;
+
+/* log message counters for streaming mode */
+extern uint32_t oslog_s_total_msgcount;
+extern uint32_t oslog_s_metadata_msgcount;
+extern uint32_t oslog_s_error_count;
+extern uint32_t oslog_s_streamed_msgcount;
+extern uint32_t oslog_s_dropped_msgcount;
+
+SYSCTL_UINT(_debug, OID_AUTO, oslog_p_total_msgcount, CTLFLAG_ANYBODY | CTLFLAG_RD | CTLFLAG_LOCKED, &oslog_p_total_msgcount, 0, "");
+SYSCTL_UINT(_debug, OID_AUTO, oslog_p_metadata_saved_msgcount, CTLFLAG_ANYBODY | CTLFLAG_RD | CTLFLAG_LOCKED, &oslog_p_metadata_saved_msgcount, 0, "");
+SYSCTL_UINT(_debug, OID_AUTO, oslog_p_metadata_dropped_msgcount, CTLFLAG_ANYBODY | CTLFLAG_RD | CTLFLAG_LOCKED, &oslog_p_metadata_dropped_msgcount, 0, "");
+SYSCTL_UINT(_debug, OID_AUTO, oslog_p_error_count, CTLFLAG_ANYBODY | CTLFLAG_RD | CTLFLAG_LOCKED, &oslog_p_error_count, 0, "");
+SYSCTL_UINT(_debug, OID_AUTO, oslog_p_saved_msgcount, CTLFLAG_ANYBODY | CTLFLAG_RD | CTLFLAG_LOCKED, &oslog_p_saved_msgcount, 0, "");
+SYSCTL_UINT(_debug, OID_AUTO, oslog_p_dropped_msgcount, CTLFLAG_ANYBODY | CTLFLAG_RD | CTLFLAG_LOCKED, &oslog_p_dropped_msgcount, 0, "");
+SYSCTL_UINT(_debug, OID_AUTO, oslog_p_boot_dropped_msgcount, CTLFLAG_ANYBODY | CTLFLAG_RD | CTLFLAG_LOCKED, &oslog_p_boot_dropped_msgcount, 0, "");
+
+SYSCTL_UINT(_debug, OID_AUTO, oslog_s_total_msgcount, CTLFLAG_ANYBODY | CTLFLAG_RD | CTLFLAG_LOCKED, &oslog_s_total_msgcount, 0, "");
+SYSCTL_UINT(_debug, OID_AUTO, oslog_s_metadata_msgcount, CTLFLAG_ANYBODY | CTLFLAG_RD | CTLFLAG_LOCKED, &oslog_s_metadata_msgcount, 0, "");
+SYSCTL_UINT(_debug, OID_AUTO, oslog_s_error_count, CTLFLAG_ANYBODY | CTLFLAG_RD | CTLFLAG_LOCKED, &oslog_s_error_count, 0, "");
+SYSCTL_UINT(_debug, OID_AUTO, oslog_s_streamed_msgcount, CTLFLAG_ANYBODY | CTLFLAG_RD | CTLFLAG_LOCKED, &oslog_s_streamed_msgcount, 0, "");
+SYSCTL_UINT(_debug, OID_AUTO, oslog_s_dropped_msgcount, CTLFLAG_ANYBODY | CTLFLAG_RD | CTLFLAG_LOCKED, &oslog_s_dropped_msgcount, 0, "");
+
+
+#endif /* DEVELOPMENT || DEBUG */
+
+/*
+ * Enable tracing of voucher contents
+ */
+extern uint32_t ipc_voucher_trace_contents;
+
+SYSCTL_INT(_kern, OID_AUTO, ipc_voucher_trace_contents,
+ CTLFLAG_RW | CTLFLAG_LOCKED, &ipc_voucher_trace_contents, 0, "Enable tracing voucher contents");
+
+/*
+ * Kernel stack size and depth
+ */
+SYSCTL_INT(_kern, OID_AUTO, stack_size,
+ CTLFLAG_RD | CTLFLAG_LOCKED, (int *) &kernel_stack_size, 0, "Kernel stack size");
+SYSCTL_INT(_kern, OID_AUTO, stack_depth_max,
+ CTLFLAG_RD | CTLFLAG_LOCKED, (int *) &kernel_stack_depth_max, 0, "Max kernel stack depth at interrupt or context switch");
+
+extern unsigned int kern_feature_overrides;
+SYSCTL_INT(_kern, OID_AUTO, kern_feature_overrides,
+ CTLFLAG_RD | CTLFLAG_LOCKED, &kern_feature_overrides, 0, "Kernel feature override mask");
+
+/*
+ * enable back trace for port allocations
+ */
+extern int ipc_portbt;
+
+SYSCTL_INT(_kern, OID_AUTO, ipc_portbt,
+ CTLFLAG_RW | CTLFLAG_KERN | CTLFLAG_LOCKED,
+ &ipc_portbt, 0, "");
+
+/*
+ * Scheduler sysctls
+ */
+
+SYSCTL_STRING(_kern, OID_AUTO, sched,
+ CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED,
+ sched_string, sizeof(sched_string),
+ "Timeshare scheduler implementation");
+
+#if CONFIG_QUIESCE_COUNTER
+static int
+sysctl_cpu_quiescent_counter_interval SYSCTL_HANDLER_ARGS
+{
+#pragma unused(arg1, arg2)
+
+ uint32_t local_min_interval_us = cpu_quiescent_counter_get_min_interval_us();
+
+ int error = sysctl_handle_int(oidp, &local_min_interval_us, 0, req);
+ if (error || !req->newptr) {
+ return error;
+ }
+
+ cpu_quiescent_counter_set_min_interval_us(local_min_interval_us);
+
+ return 0;
+}
+
+SYSCTL_PROC(_kern, OID_AUTO, cpu_checkin_interval,
+ CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_LOCKED,
+ 0, 0,
+ sysctl_cpu_quiescent_counter_interval, "I",
+ "Quiescent CPU checkin interval (microseconds)");
+#endif /* CONFIG_QUIESCE_COUNTER */
+
+
+/*
+ * Only support runtime modification on embedded platforms
+ * with development config enabled
+ */
+#if CONFIG_EMBEDDED
+#if !SECURE_KERNEL
+extern int precise_user_kernel_time;
+SYSCTL_INT(_kern, OID_AUTO, precise_user_kernel_time,
+ CTLFLAG_RW | CTLFLAG_LOCKED,
+ &precise_user_kernel_time, 0, "Precise accounting of kernel vs. user time");
+#endif
+#endif
+
+
+/* Parameters related to timer coalescing tuning, to be replaced
+ * with a dedicated systemcall in the future.
+ */
+/* Enable processing pending timers in the context of any other interrupt
+ * Coalescing tuning parameters for various thread/task attributes */
+STATIC int
+sysctl_timer_user_us_kernel_abstime SYSCTL_HANDLER_ARGS
+{
+#pragma unused(oidp)
+ int size = arg2; /* subcommand*/
+ int error;
+ int changed = 0;
+ uint64_t old_value_ns;
+ uint64_t new_value_ns;
+ uint64_t value_abstime;
+ if (size == sizeof(uint32_t)) {
+ value_abstime = *((uint32_t *)arg1);
+ } else if (size == sizeof(uint64_t)) {
+ value_abstime = *((uint64_t *)arg1);
+ } else {
+ return ENOTSUP;
+ }
+
+ absolutetime_to_nanoseconds(value_abstime, &old_value_ns);
+ error = sysctl_io_number(req, old_value_ns, sizeof(old_value_ns), &new_value_ns, &changed);
+ if ((error) || (!changed)) {
+ return error;
+ }
+
+ nanoseconds_to_absolutetime(new_value_ns, &value_abstime);
+ if (size == sizeof(uint32_t)) {
+ *((uint32_t *)arg1) = (uint32_t)value_abstime;
+ } else {
+ *((uint64_t *)arg1) = value_abstime;
+ }
+ return error;
+}
+
+SYSCTL_INT(_kern, OID_AUTO, timer_coalesce_bg_scale,
+ CTLFLAG_KERN | CTLFLAG_RW | CTLFLAG_LOCKED,
+ &tcoal_prio_params.timer_coalesce_bg_shift, 0, "");
+SYSCTL_PROC(_kern, OID_AUTO, timer_resort_threshold_ns,
+ CTLTYPE_QUAD | CTLFLAG_KERN | CTLFLAG_RW | CTLFLAG_LOCKED,
+ &tcoal_prio_params.timer_resort_threshold_abstime,
+ sizeof(tcoal_prio_params.timer_resort_threshold_abstime),
+ sysctl_timer_user_us_kernel_abstime,
+ "Q", "");
+SYSCTL_PROC(_kern, OID_AUTO, timer_coalesce_bg_ns_max,
+ CTLTYPE_QUAD | CTLFLAG_KERN | CTLFLAG_RW | CTLFLAG_LOCKED,
+ &tcoal_prio_params.timer_coalesce_bg_abstime_max,
+ sizeof(tcoal_prio_params.timer_coalesce_bg_abstime_max),
+ sysctl_timer_user_us_kernel_abstime,
+ "Q", "");
+
+SYSCTL_INT(_kern, OID_AUTO, timer_coalesce_kt_scale,
+ CTLFLAG_KERN | CTLFLAG_RW | CTLFLAG_LOCKED,
+ &tcoal_prio_params.timer_coalesce_kt_shift, 0, "");
+
+SYSCTL_PROC(_kern, OID_AUTO, timer_coalesce_kt_ns_max,
+ CTLTYPE_QUAD | CTLFLAG_KERN | CTLFLAG_RW | CTLFLAG_LOCKED,
+ &tcoal_prio_params.timer_coalesce_kt_abstime_max,
+ sizeof(tcoal_prio_params.timer_coalesce_kt_abstime_max),
+ sysctl_timer_user_us_kernel_abstime,
+ "Q", "");
+
+SYSCTL_INT(_kern, OID_AUTO, timer_coalesce_fp_scale,
+ CTLFLAG_KERN | CTLFLAG_RW | CTLFLAG_LOCKED,
+ &tcoal_prio_params.timer_coalesce_fp_shift, 0, "");
+
+SYSCTL_PROC(_kern, OID_AUTO, timer_coalesce_fp_ns_max,
+ CTLTYPE_QUAD | CTLFLAG_KERN | CTLFLAG_RW | CTLFLAG_LOCKED,
+ &tcoal_prio_params.timer_coalesce_fp_abstime_max,
+ sizeof(tcoal_prio_params.timer_coalesce_fp_abstime_max),
+ sysctl_timer_user_us_kernel_abstime,
+ "Q", "");
+
+SYSCTL_INT(_kern, OID_AUTO, timer_coalesce_ts_scale,
+ CTLFLAG_KERN | CTLFLAG_RW | CTLFLAG_LOCKED,
+ &tcoal_prio_params.timer_coalesce_ts_shift, 0, "");
+
+SYSCTL_PROC(_kern, OID_AUTO, timer_coalesce_ts_ns_max,
+ CTLTYPE_QUAD | CTLFLAG_KERN | CTLFLAG_RW | CTLFLAG_LOCKED,
+ &tcoal_prio_params.timer_coalesce_ts_abstime_max,
+ sizeof(tcoal_prio_params.timer_coalesce_ts_abstime_max),
+ sysctl_timer_user_us_kernel_abstime,
+ "Q", "");
+
+SYSCTL_INT(_kern, OID_AUTO, timer_coalesce_tier0_scale,
+ CTLFLAG_KERN | CTLFLAG_RW | CTLFLAG_LOCKED,
+ &tcoal_prio_params.latency_qos_scale[0], 0, "");
+
+SYSCTL_PROC(_kern, OID_AUTO, timer_coalesce_tier0_ns_max,
+ CTLTYPE_QUAD | CTLFLAG_KERN | CTLFLAG_RW | CTLFLAG_LOCKED,
+ &tcoal_prio_params.latency_qos_abstime_max[0],
+ sizeof(tcoal_prio_params.latency_qos_abstime_max[0]),
+ sysctl_timer_user_us_kernel_abstime,
+ "Q", "");
+
+SYSCTL_INT(_kern, OID_AUTO, timer_coalesce_tier1_scale,
+ CTLFLAG_KERN | CTLFLAG_RW | CTLFLAG_LOCKED,
+ &tcoal_prio_params.latency_qos_scale[1], 0, "");
+
+SYSCTL_PROC(_kern, OID_AUTO, timer_coalesce_tier1_ns_max,
+ CTLTYPE_QUAD | CTLFLAG_KERN | CTLFLAG_RW | CTLFLAG_LOCKED,
+ &tcoal_prio_params.latency_qos_abstime_max[1],
+ sizeof(tcoal_prio_params.latency_qos_abstime_max[1]),
+ sysctl_timer_user_us_kernel_abstime,
+ "Q", "");
+
+SYSCTL_INT(_kern, OID_AUTO, timer_coalesce_tier2_scale,
+ CTLFLAG_KERN | CTLFLAG_RW | CTLFLAG_LOCKED,
+ &tcoal_prio_params.latency_qos_scale[2], 0, "");
+
+SYSCTL_PROC(_kern, OID_AUTO, timer_coalesce_tier2_ns_max,
+ CTLTYPE_QUAD | CTLFLAG_KERN | CTLFLAG_RW | CTLFLAG_LOCKED,
+ &tcoal_prio_params.latency_qos_abstime_max[2],
+ sizeof(tcoal_prio_params.latency_qos_abstime_max[2]),
+ sysctl_timer_user_us_kernel_abstime,
+ "Q", "");
+
+SYSCTL_INT(_kern, OID_AUTO, timer_coalesce_tier3_scale,
+ CTLFLAG_KERN | CTLFLAG_RW | CTLFLAG_LOCKED,
+ &tcoal_prio_params.latency_qos_scale[3], 0, "");
+
+SYSCTL_PROC(_kern, OID_AUTO, timer_coalesce_tier3_ns_max,
+ CTLTYPE_QUAD | CTLFLAG_KERN | CTLFLAG_RW | CTLFLAG_LOCKED,
+ &tcoal_prio_params.latency_qos_abstime_max[3],
+ sizeof(tcoal_prio_params.latency_qos_abstime_max[3]),
+ sysctl_timer_user_us_kernel_abstime,
+ "Q", "");
+
+SYSCTL_INT(_kern, OID_AUTO, timer_coalesce_tier4_scale,
+ CTLFLAG_KERN | CTLFLAG_RW | CTLFLAG_LOCKED,
+ &tcoal_prio_params.latency_qos_scale[4], 0, "");
+
+SYSCTL_PROC(_kern, OID_AUTO, timer_coalesce_tier4_ns_max,
+ CTLTYPE_QUAD | CTLFLAG_KERN | CTLFLAG_RW | CTLFLAG_LOCKED,
+ &tcoal_prio_params.latency_qos_abstime_max[4],
+ sizeof(tcoal_prio_params.latency_qos_abstime_max[4]),
+ sysctl_timer_user_us_kernel_abstime,
+ "Q", "");
+
+SYSCTL_INT(_kern, OID_AUTO, timer_coalesce_tier5_scale,
+ CTLFLAG_KERN | CTLFLAG_RW | CTLFLAG_LOCKED,
+ &tcoal_prio_params.latency_qos_scale[5], 0, "");
+
+SYSCTL_PROC(_kern, OID_AUTO, timer_coalesce_tier5_ns_max,
+ CTLTYPE_QUAD | CTLFLAG_KERN | CTLFLAG_RW | CTLFLAG_LOCKED,
+ &tcoal_prio_params.latency_qos_abstime_max[5],
+ sizeof(tcoal_prio_params.latency_qos_abstime_max[5]),
+ sysctl_timer_user_us_kernel_abstime,
+ "Q", "");
+
+/* Communicate the "user idle level" heuristic to the timer layer, and
+ * potentially other layers in the future.
+ */
+
+static int
+timer_user_idle_level(__unused struct sysctl_oid *oidp, __unused void *arg1, __unused int arg2, struct sysctl_req *req)
+{
+ int new_value = 0, old_value = 0, changed = 0, error;
+
+ old_value = timer_get_user_idle_level();
+
+ error = sysctl_io_number(req, old_value, sizeof(int), &new_value, &changed);
+
+ if (error == 0 && changed) {
+ if (timer_set_user_idle_level(new_value) != KERN_SUCCESS) {
+ error = ERANGE;
+ }
+ }
+
+ return error;
+}
+
+SYSCTL_PROC(_machdep, OID_AUTO, user_idle_level,
+ CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_LOCKED,
+ 0, 0,
+ timer_user_idle_level, "I", "User idle level heuristic, 0-128");
+
+#if HYPERVISOR
+SYSCTL_INT(_kern, OID_AUTO, hv_support,
+ CTLFLAG_KERN | CTLFLAG_RD | CTLFLAG_LOCKED,
+ &hv_support_available, 0, "");
+#endif
+
+#if CONFIG_EMBEDDED
+STATIC int
+sysctl_darkboot SYSCTL_HANDLER_ARGS
+{
+ int err = 0, value = 0;
+#pragma unused(oidp, arg1, arg2, err, value, req)
+
+ /*
+ * Handle the sysctl request.
+ *
+ * If this is a read, the function will set the value to the current darkboot value. Otherwise,
+ * we'll get the request identifier into "value" and then we can honor it.
+ */
+ if ((err = sysctl_io_number(req, darkboot, sizeof(int), &value, NULL)) != 0) {
+ goto exit;
+ }
+
+ /* writing requested, let's process the request */
+ if (req->newptr) {
+ /* writing is protected by an entitlement */
+ if (priv_check_cred(kauth_cred_get(), PRIV_DARKBOOT, 0) != 0) {
+ err = EPERM;
+ goto exit;
+ }
+
+ switch (value) {
+ case MEMORY_MAINTENANCE_DARK_BOOT_UNSET:
+ /*
+ * If the darkboot sysctl is unset, the NVRAM variable
+ * must be unset too. If that's not the case, it means
+ * someone is doing something crazy and not supported.
+ */
+ if (darkboot != 0) {
+ int ret = PERemoveNVRAMProperty(MEMORY_MAINTENANCE_DARK_BOOT_NVRAM_NAME);
+ if (ret) {
+ darkboot = 0;
+ } else {
+ err = EINVAL;
+ }
+ }
+ break;
+ case MEMORY_MAINTENANCE_DARK_BOOT_SET:
+ darkboot = 1;
+ break;
+ case MEMORY_MAINTENANCE_DARK_BOOT_SET_PERSISTENT: {
+ /*
+ * Set the NVRAM and update 'darkboot' in case
+ * of success. Otherwise, do not update
+ * 'darkboot' and report the failure.
+ */
+ if (PEWriteNVRAMBooleanProperty(MEMORY_MAINTENANCE_DARK_BOOT_NVRAM_NAME, TRUE)) {
+ darkboot = 1;
+ } else {
+ err = EINVAL;
+ }
+
+ break;
+ }
+ default:
+ err = EINVAL;
+ }
+ }
+
+exit:
+ return err;
+}
+
+SYSCTL_PROC(_kern, OID_AUTO, darkboot,
+ CTLFLAG_KERN | CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_LOCKED | CTLFLAG_ANYBODY,
+ 0, 0, sysctl_darkboot, "I", "");
+#endif
+
+#if DEVELOPMENT || DEBUG
+#include <sys/sysent.h>
+/* This should result in a fatal exception, verifying that "sysent" is
+ * write-protected.
+ */
+static int
+kern_sysent_write(__unused struct sysctl_oid *oidp, __unused void *arg1, __unused int arg2, struct sysctl_req *req)
+{
+ uint64_t new_value = 0, old_value = 0;
+ int changed = 0, error;
+
+ error = sysctl_io_number(req, old_value, sizeof(uint64_t), &new_value, &changed);
+ if ((error == 0) && changed) {
+ volatile uint32_t *wraddr = (uint32_t *) &sysent[0];
+ *wraddr = 0;
+ printf("sysent[0] write succeeded\n");
+ }
+ return error;
+}
+
+SYSCTL_PROC(_kern, OID_AUTO, sysent_const_check,
+ CTLTYPE_QUAD | CTLFLAG_RW | CTLFLAG_LOCKED,
+ 0, 0,
+ kern_sysent_write, "I", "Attempt sysent[0] write");
+
+#endif
+
+#if DEVELOPMENT || DEBUG
+SYSCTL_COMPAT_INT(_kern, OID_AUTO, development, CTLFLAG_RD | CTLFLAG_MASKED, NULL, 1, "");
+#else
+SYSCTL_COMPAT_INT(_kern, OID_AUTO, development, CTLFLAG_RD | CTLFLAG_MASKED, NULL, 0, "");
+#endif
+
+
+#if DEVELOPMENT || DEBUG
+
+static int
+sysctl_panic_test SYSCTL_HANDLER_ARGS
+{
+#pragma unused(arg1, arg2)
+ int rval = 0;
+ char str[32] = "entry prelog postlog postcore";
+
+ rval = sysctl_handle_string(oidp, str, sizeof(str), req);
+
+ if (rval == 0 && req->newptr) {
+ if (strncmp("entry", str, strlen("entry")) == 0) {
+ panic_with_options(0, NULL, DEBUGGER_OPTION_RECURPANIC_ENTRY, "test recursive panic at entry");
+ } else if (strncmp("prelog", str, strlen("prelog")) == 0) {
+ panic_with_options(0, NULL, DEBUGGER_OPTION_RECURPANIC_PRELOG, "test recursive panic prior to writing a paniclog");
+ } else if (strncmp("postlog", str, strlen("postlog")) == 0) {
+ panic_with_options(0, NULL, DEBUGGER_OPTION_RECURPANIC_POSTLOG, "test recursive panic subsequent to paniclog");
+ } else if (strncmp("postcore", str, strlen("postcore")) == 0) {
+ panic_with_options(0, NULL, DEBUGGER_OPTION_RECURPANIC_POSTCORE, "test recursive panic subsequent to on-device core");
+ }
+ }
+
+ return rval;
+}
+
+static int
+sysctl_debugger_test SYSCTL_HANDLER_ARGS
+{
+#pragma unused(arg1, arg2)
+ int rval = 0;
+ char str[32] = "entry prelog postlog postcore";
+
+ rval = sysctl_handle_string(oidp, str, sizeof(str), req);
+
+ if (rval == 0 && req->newptr) {
+ if (strncmp("entry", str, strlen("entry")) == 0) {
+ DebuggerWithContext(0, NULL, "test recursive panic via debugger at entry", DEBUGGER_OPTION_RECURPANIC_ENTRY);
+ } else if (strncmp("prelog", str, strlen("prelog")) == 0) {
+ DebuggerWithContext(0, NULL, "test recursive panic via debugger prior to writing a paniclog", DEBUGGER_OPTION_RECURPANIC_PRELOG);
+ } else if (strncmp("postlog", str, strlen("postlog")) == 0) {
+ DebuggerWithContext(0, NULL, "test recursive panic via debugger subsequent to paniclog", DEBUGGER_OPTION_RECURPANIC_POSTLOG);
+ } else if (strncmp("postcore", str, strlen("postcore")) == 0) {
+ DebuggerWithContext(0, NULL, "test recursive panic via debugger subsequent to on-device core", DEBUGGER_OPTION_RECURPANIC_POSTCORE);
+ }
+ }
+
+ return rval;
+}
+
+decl_lck_spin_data(, spinlock_panic_test_lock);
+
+__attribute__((noreturn))
+static void
+spinlock_panic_test_acquire_spinlock(void * arg __unused, wait_result_t wres __unused)
+{
+ lck_spin_lock(&spinlock_panic_test_lock);
+ while (1) {
+ ;
+ }
+}
+
+static int
+sysctl_spinlock_panic_test SYSCTL_HANDLER_ARGS
+{
+#pragma unused(oidp, arg1, arg2)
+ if (req->newlen == 0) {
+ return EINVAL;
+ }
+
+ thread_t panic_spinlock_thread;
+ /* Initialize panic spinlock */
+ lck_grp_t * panic_spinlock_grp;
+ lck_grp_attr_t * panic_spinlock_grp_attr;
+ lck_attr_t * panic_spinlock_attr;
+
+ panic_spinlock_grp_attr = lck_grp_attr_alloc_init();
+ panic_spinlock_grp = lck_grp_alloc_init("panic_spinlock", panic_spinlock_grp_attr);
+ panic_spinlock_attr = lck_attr_alloc_init();
+
+ lck_spin_init(&spinlock_panic_test_lock, panic_spinlock_grp, panic_spinlock_attr);
+
+
+ /* Create thread to acquire spinlock */
+ if (kernel_thread_start(spinlock_panic_test_acquire_spinlock, NULL, &panic_spinlock_thread) != KERN_SUCCESS) {
+ return EBUSY;
+ }
+
+ /* Try to acquire spinlock -- should panic eventually */
+ lck_spin_lock(&spinlock_panic_test_lock);
+ while (1) {
+ ;
+ }
+}
+
+__attribute__((noreturn))
+static void
+simultaneous_panic_worker
+(void * arg, wait_result_t wres __unused)
+{
+ atomic_int *start_panic = (atomic_int *)arg;
+
+ while (!atomic_load(start_panic)) {
+ ;
+ }
+ panic("SIMULTANEOUS PANIC TEST: INITIATING PANIC FROM CPU %d", cpu_number());
+ __builtin_unreachable();
+}
+
+static int
+sysctl_simultaneous_panic_test SYSCTL_HANDLER_ARGS
+{
+#pragma unused(oidp, arg1, arg2)
+ if (req->newlen == 0) {
+ return EINVAL;
+ }
+
+ int i = 0, threads_to_create = 2 * processor_count;
+ atomic_int start_panic = 0;
+ unsigned int threads_created = 0;
+ thread_t new_panic_thread;
+
+ for (i = threads_to_create; i > 0; i--) {
+ if (kernel_thread_start(simultaneous_panic_worker, (void *) &start_panic, &new_panic_thread) == KERN_SUCCESS) {
+ threads_created++;
+ }
+ }
+
+ /* FAIL if we couldn't create at least processor_count threads */
+ if (threads_created < processor_count) {
+ panic("SIMULTANEOUS PANIC TEST: FAILED TO CREATE ENOUGH THREADS, ONLY CREATED %d (of %d)",
+ threads_created, threads_to_create);
+ }
+
+ atomic_exchange(&start_panic, 1);
+ while (1) {
+ ;
+ }
+}
+
+SYSCTL_PROC(_debug, OID_AUTO, panic_test, CTLTYPE_STRING | CTLFLAG_RW | CTLFLAG_KERN | CTLFLAG_MASKED, 0, 0, sysctl_panic_test, "A", "panic test");
+SYSCTL_PROC(_debug, OID_AUTO, debugger_test, CTLTYPE_STRING | CTLFLAG_RW | CTLFLAG_KERN | CTLFLAG_MASKED, 0, 0, sysctl_debugger_test, "A", "debugger test");
+SYSCTL_PROC(_debug, OID_AUTO, spinlock_panic_test, CTLTYPE_STRING | CTLFLAG_RW | CTLFLAG_KERN | CTLFLAG_MASKED, 0, 0, sysctl_spinlock_panic_test, "A", "spinlock panic test");
+SYSCTL_PROC(_debug, OID_AUTO, simultaneous_panic_test, CTLTYPE_STRING | CTLFLAG_RW | CTLFLAG_KERN | CTLFLAG_MASKED, 0, 0, sysctl_simultaneous_panic_test, "A", "simultaneous panic test");
+
+extern int exc_resource_threads_enabled;
+
+SYSCTL_INT(_kern, OID_AUTO, exc_resource_threads_enabled, CTLFLAG_RD | CTLFLAG_LOCKED, &exc_resource_threads_enabled, 0, "exc_resource thread limit enabled");
+
+
+#endif /* DEVELOPMENT || DEBUG */
+
+const uint32_t thread_groups_supported = 0;
+
+STATIC int
+sysctl_thread_groups_supported(__unused struct sysctl_oid *oidp, __unused void *arg1, __unused int arg2, struct sysctl_req *req)
+{
+ int value = thread_groups_supported;
+ return sysctl_io_number(req, value, sizeof(value), NULL, NULL);
+}
+
+SYSCTL_PROC(_kern, OID_AUTO, thread_groups_supported, CTLFLAG_RD | CTLFLAG_LOCKED | CTLFLAG_KERN,
+ 0, 0, &sysctl_thread_groups_supported, "I", "thread groups supported");
+
+static int
+sysctl_grade_cputype SYSCTL_HANDLER_ARGS
+{
+#pragma unused(arg1, arg2, oidp)
+ int error = 0;
+ int type_tuple[2] = {};
+ int return_value = 0;
+
+ error = SYSCTL_IN(req, &type_tuple, sizeof(type_tuple));
+
+ if (error) {
+ return error;
+ }
+
+ return_value = grade_binary(type_tuple[0], type_tuple[1], FALSE);
+
+ error = SYSCTL_OUT(req, &return_value, sizeof(return_value));
+
+ if (error) {
+ return error;
+ }
+
+ return error;
+}
+
+SYSCTL_PROC(_kern, OID_AUTO, grade_cputype,
+ CTLFLAG_RW | CTLFLAG_ANYBODY | CTLFLAG_MASKED | CTLFLAG_LOCKED | CTLTYPE_OPAQUE,
+ 0, 0, &sysctl_grade_cputype, "S",
+ "grade value of cpu_type_t+cpu_sub_type_t");
+
+
+#if DEVELOPMENT || DEBUG
+
+extern void do_cseg_wedge_thread(void);
+extern void do_cseg_unwedge_thread(void);
+
+static int
+cseg_wedge_thread SYSCTL_HANDLER_ARGS
+{
+#pragma unused(arg1, arg2)
+
+ int error, val = 0;
+ error = sysctl_handle_int(oidp, &val, 0, req);
+ if (error || val == 0) {
+ return error;
+ }
+
+ do_cseg_wedge_thread();
+ return 0;
+}
+SYSCTL_PROC(_kern, OID_AUTO, cseg_wedge_thread, CTLFLAG_RW | CTLFLAG_LOCKED | CTLFLAG_MASKED, 0, 0, cseg_wedge_thread, "I", "wedge c_seg thread");
+
+static int
+cseg_unwedge_thread SYSCTL_HANDLER_ARGS
+{
+#pragma unused(arg1, arg2)
+
+ int error, val = 0;
+ error = sysctl_handle_int(oidp, &val, 0, req);
+ if (error || val == 0) {
+ return error;
+ }
+
+ do_cseg_unwedge_thread();
+ return 0;
+}
+SYSCTL_PROC(_kern, OID_AUTO, cseg_unwedge_thread, CTLFLAG_RW | CTLFLAG_LOCKED | CTLFLAG_MASKED, 0, 0, cseg_unwedge_thread, "I", "unstuck c_seg thread");
+
+static atomic_int wedge_thread_should_wake = 0;
+
+static int
+unwedge_thread SYSCTL_HANDLER_ARGS
+{
+#pragma unused(arg1, arg2)
+ int error, val = 0;
+ error = sysctl_handle_int(oidp, &val, 0, req);
+ if (error || val == 0) {
+ return error;
+ }
+
+ atomic_store(&wedge_thread_should_wake, 1);
+ return 0;
+}
+
+SYSCTL_PROC(_kern, OID_AUTO, unwedge_thread, CTLFLAG_RW | CTLFLAG_ANYBODY | CTLFLAG_LOCKED, 0, 0, unwedge_thread, "I", "unwedge the thread wedged by kern.wedge_thread");
+
+SYSCTL_LONG(_kern, OID_AUTO, phys_carveout_pa, CTLFLAG_RD | CTLFLAG_LOCKED,
+ &phys_carveout_pa,
+ "base physical address of the phys_carveout_mb boot-arg region");
+SYSCTL_LONG(_kern, OID_AUTO, phys_carveout_size, CTLFLAG_RD | CTLFLAG_LOCKED,
+ &phys_carveout_size,
+ "size in bytes of the phys_carveout_mb boot-arg region");
+
+static int
+wedge_thread SYSCTL_HANDLER_ARGS
+{
+#pragma unused(arg1, arg2)
+
+ int error, val = 0;
+ error = sysctl_handle_int(oidp, &val, 0, req);
+ if (error || val == 0) {
+ return error;
+ }
+
+ uint64_t interval = 1;
+ nanoseconds_to_absolutetime(1000 * 1000 * 50, &interval);
+
+ atomic_store(&wedge_thread_should_wake, 0);
+ while (!atomic_load(&wedge_thread_should_wake)) {
+ tsleep1(NULL, 0, "wedge_thread", mach_absolute_time() + interval, NULL);
+ }
+
+ return 0;
+}
+
+SYSCTL_PROC(_kern, OID_AUTO, wedge_thread, CTLFLAG_RW | CTLFLAG_ANYBODY | CTLFLAG_LOCKED, 0, 0, wedge_thread, "I", "wedge this thread so it cannot be cleaned up");
+
+extern unsigned long
+total_corpses_count(void);
+
+static int
+sysctl_total_corpses_count SYSCTL_HANDLER_ARGS;
+
+static int
+sysctl_total_corpses_count SYSCTL_HANDLER_ARGS
+{
+#pragma unused(oidp, arg1, arg2)
+ int corpse_count = total_corpses_count();
+ return sysctl_io_opaque(req, &corpse_count, sizeof(int), NULL);
+}
+
+SYSCTL_PROC(_kern, OID_AUTO, total_corpses_count, CTLFLAG_RD | CTLFLAG_ANYBODY | CTLFLAG_LOCKED, 0, 0, sysctl_total_corpses_count, "I", "total corpses on the system");
+
+static int
+sysctl_turnstile_test_prim_lock SYSCTL_HANDLER_ARGS;
+static int
+sysctl_turnstile_test_prim_unlock SYSCTL_HANDLER_ARGS;
+int
+tstile_test_prim_lock(boolean_t use_hashtable);
+int
+tstile_test_prim_unlock(boolean_t use_hashtable);
+
+static int
+sysctl_turnstile_test_prim_lock SYSCTL_HANDLER_ARGS
+{
+#pragma unused(arg1, arg2)
+ int error, val = 0;
+ error = sysctl_handle_int(oidp, &val, 0, req);
+ if (error || val == 0) {
+ return error;
+ }
+ switch (val) {
+ case SYSCTL_TURNSTILE_TEST_USER_DEFAULT:
+ case SYSCTL_TURNSTILE_TEST_USER_HASHTABLE:
+ case SYSCTL_TURNSTILE_TEST_KERNEL_DEFAULT:
+ case SYSCTL_TURNSTILE_TEST_KERNEL_HASHTABLE:
+ return tstile_test_prim_lock(val);
+ default:
+ return error;
+ }
+}
+
+static int
+sysctl_turnstile_test_prim_unlock SYSCTL_HANDLER_ARGS
+{
+#pragma unused(arg1, arg2)
+ int error, val = 0;
+ error = sysctl_handle_int(oidp, &val, 0, req);
+ if (error || val == 0) {
+ return error;
+ }
+ switch (val) {
+ case SYSCTL_TURNSTILE_TEST_USER_DEFAULT:
+ case SYSCTL_TURNSTILE_TEST_USER_HASHTABLE:
+ case SYSCTL_TURNSTILE_TEST_KERNEL_DEFAULT:
+ case SYSCTL_TURNSTILE_TEST_KERNEL_HASHTABLE:
+ return tstile_test_prim_unlock(val);
+ default:
+ return error;
+ }
+}
+
+SYSCTL_PROC(_kern, OID_AUTO, turnstiles_test_lock, CTLFLAG_WR | CTLFLAG_ANYBODY | CTLFLAG_KERN | CTLFLAG_LOCKED,
+ 0, 0, sysctl_turnstile_test_prim_lock, "I", "turnstiles test lock");
+
+SYSCTL_PROC(_kern, OID_AUTO, turnstiles_test_unlock, CTLFLAG_WR | CTLFLAG_ANYBODY | CTLFLAG_KERN | CTLFLAG_LOCKED,
+ 0, 0, sysctl_turnstile_test_prim_unlock, "I", "turnstiles test unlock");
+
+int
+turnstile_get_boost_stats_sysctl(void *req);
+int
+turnstile_get_unboost_stats_sysctl(void *req);
+static int
+sysctl_turnstile_boost_stats SYSCTL_HANDLER_ARGS;
+static int
+sysctl_turnstile_unboost_stats SYSCTL_HANDLER_ARGS;
+extern uint64_t thread_block_on_turnstile_count;
+extern uint64_t thread_block_on_regular_waitq_count;
+
+static int
+sysctl_turnstile_boost_stats SYSCTL_HANDLER_ARGS
+{
+#pragma unused(arg1, arg2, oidp)
+ return turnstile_get_boost_stats_sysctl(req);
+}
+
+static int
+sysctl_turnstile_unboost_stats SYSCTL_HANDLER_ARGS
+{
+#pragma unused(arg1, arg2, oidp)
+ return turnstile_get_unboost_stats_sysctl(req);
+}
+
+SYSCTL_PROC(_kern, OID_AUTO, turnstile_boost_stats, CTLFLAG_RD | CTLFLAG_ANYBODY | CTLFLAG_KERN | CTLFLAG_LOCKED | CTLTYPE_STRUCT,
+ 0, 0, sysctl_turnstile_boost_stats, "S", "turnstiles boost stats");
+SYSCTL_PROC(_kern, OID_AUTO, turnstile_unboost_stats, CTLFLAG_RD | CTLFLAG_ANYBODY | CTLFLAG_KERN | CTLFLAG_LOCKED | CTLTYPE_STRUCT,
+ 0, 0, sysctl_turnstile_unboost_stats, "S", "turnstiles unboost stats");
+SYSCTL_QUAD(_kern, OID_AUTO, thread_block_count_on_turnstile,
+ CTLFLAG_RD | CTLFLAG_ANYBODY | CTLFLAG_KERN | CTLFLAG_LOCKED,
+ &thread_block_on_turnstile_count, "thread blocked on turnstile count");
+SYSCTL_QUAD(_kern, OID_AUTO, thread_block_count_on_reg_waitq,
+ CTLFLAG_RD | CTLFLAG_ANYBODY | CTLFLAG_KERN | CTLFLAG_LOCKED,
+ &thread_block_on_regular_waitq_count, "thread blocked on regular waitq count");
+
+static int
+sysctl_erase_all_test_mtx_stats SYSCTL_HANDLER_ARGS
+{
+#pragma unused(arg1, arg2)
+ int error, val = 0;
+ error = sysctl_handle_int(oidp, &val, 0, req);
+ if (error || val == 0) {
+ return error;
+ }
+
+ if (val == 1) {
+ lck_mtx_test_init();
+ erase_all_test_mtx_stats();
+ }
+
+ return 0;
+}
+
+static int
+sysctl_get_test_mtx_stats SYSCTL_HANDLER_ARGS
+{
+#pragma unused(oidp, arg1, arg2)
+ char* buffer;
+ int size, buffer_size, error;
+
+ buffer_size = 1000;
+ buffer = kalloc(buffer_size);
+ if (!buffer) {
+ panic("Impossible to allocate memory for %s\n", __func__);
+ }
+
+ lck_mtx_test_init();
+
+ size = get_test_mtx_stats_string(buffer, buffer_size);
+
+ error = sysctl_io_string(req, buffer, size, 0, NULL);
+
+ kfree(buffer, buffer_size);
+
+ return error;
+}
+
+static int
+sysctl_test_mtx_uncontended SYSCTL_HANDLER_ARGS
+{
+#pragma unused(oidp, arg1, arg2)
+ char* buffer;
+ int buffer_size, offset, error, iter;
+ char input_val[40];
+
+ if (!req->newptr) {
+ return 0;
+ }
+
+ if (!req->oldptr) {
+ return EINVAL;
+ }
+
+ if (req->newlen >= sizeof(input_val)) {
+ return EINVAL;
+ }
+
+ error = SYSCTL_IN(req, input_val, req->newlen);
+ if (error) {
+ return error;
+ }
+ input_val[req->newlen] = '\0';
+
+ iter = 0;
+ error = sscanf(input_val, "%d", &iter);
+ if (error != 1) {
+ printf("%s invalid input\n", __func__);
+ return EINVAL;
+ }
+
+ if (iter <= 0) {
+ printf("%s requested %d iterations, not starting the test\n", __func__, iter);
+ return EINVAL;
+ }
+
+ lck_mtx_test_init();
+
+ buffer_size = 2000;
+ offset = 0;
+ buffer = kalloc(buffer_size);
+ if (!buffer) {
+ panic("Impossible to allocate memory for %s\n", __func__);
+ }
+ memset(buffer, 0, buffer_size);
+
+ printf("%s starting uncontended mutex test with %d iterations\n", __func__, iter);
+
+ offset = scnprintf(buffer, buffer_size, "STATS INNER LOOP");
+ offset += lck_mtx_test_mtx_uncontended(iter, &buffer[offset], buffer_size - offset);
+
+ offset += scnprintf(&buffer[offset], buffer_size - offset, "\nSTATS OUTER LOOP");
+ offset += lck_mtx_test_mtx_uncontended_loop_time(iter, &buffer[offset], buffer_size - offset);
+
+ error = SYSCTL_OUT(req, buffer, offset);
+
+ kfree(buffer, buffer_size);
+ return error;
+}
+
+static int
+sysctl_test_mtx_contended SYSCTL_HANDLER_ARGS
+{
+#pragma unused(oidp, arg1, arg2)
+ char* buffer;
+ int buffer_size, offset, error, iter;
+ char input_val[40];
+
+ if (!req->newptr) {
+ return 0;
+ }
+
+ if (!req->oldptr) {
+ return EINVAL;
+ }
+
+ if (req->newlen >= sizeof(input_val)) {
+ return EINVAL;
+ }
+
+ error = SYSCTL_IN(req, input_val, req->newlen);
+ if (error) {
+ return error;
+ }
+ input_val[req->newlen] = '\0';
+
+ iter = 0;
+ error = sscanf(input_val, "%d", &iter);
+ if (error != 1) {
+ printf("%s invalid input\n", __func__);
+ return EINVAL;
+ }
+
+ if (iter <= 0) {
+ printf("%s requested %d iterations, not starting the test\n", __func__, iter);
+ return EINVAL;
+ }
+
+ lck_mtx_test_init();
+
+ erase_all_test_mtx_stats();
+
+ buffer_size = 2000;
+ offset = 0;
+ buffer = kalloc(buffer_size);
+ if (!buffer) {
+ panic("Impossible to allocate memory for %s\n", __func__);
+ }
+ memset(buffer, 0, buffer_size);
+
+ printf("%s starting contended mutex test with %d iterations FULL_CONTENDED\n", __func__, iter);
+
+ offset = scnprintf(buffer, buffer_size, "STATS INNER LOOP");
+ offset += lck_mtx_test_mtx_contended(iter, &buffer[offset], buffer_size - offset, FULL_CONTENDED);
+
+ printf("%s starting contended mutex loop test with %d iterations FULL_CONTENDED\n", __func__, iter);
+
+ offset += scnprintf(&buffer[offset], buffer_size - offset, "\nSTATS OUTER LOOP");
+ offset += lck_mtx_test_mtx_contended_loop_time(iter, &buffer[offset], buffer_size - offset, FULL_CONTENDED);
+
+ printf("%s starting contended mutex test with %d iterations HALF_CONTENDED\n", __func__, iter);
+
+ offset += scnprintf(&buffer[offset], buffer_size - offset, "STATS INNER LOOP");
+ offset += lck_mtx_test_mtx_contended(iter, &buffer[offset], buffer_size - offset, HALF_CONTENDED);
+
+ printf("%s starting contended mutex loop test with %d iterations HALF_CONTENDED\n", __func__, iter);
+
+ offset += scnprintf(&buffer[offset], buffer_size - offset, "\nSTATS OUTER LOOP");
+ offset += lck_mtx_test_mtx_contended_loop_time(iter, &buffer[offset], buffer_size - offset, HALF_CONTENDED);
+
+ error = SYSCTL_OUT(req, buffer, offset);
+
+ printf("\n%s\n", buffer);
+ kfree(buffer, buffer_size);
+
+ return error;
+}
+
+SYSCTL_PROC(_kern, OID_AUTO, erase_all_test_mtx_stats, CTLFLAG_WR | CTLFLAG_MASKED | CTLFLAG_ANYBODY | CTLFLAG_KERN | CTLFLAG_LOCKED,
+ 0, 0, sysctl_erase_all_test_mtx_stats, "I", "erase test_mtx statistics");
+
+SYSCTL_PROC(_kern, OID_AUTO, get_test_mtx_stats, CTLTYPE_STRING | CTLFLAG_RD | CTLFLAG_MASKED | CTLFLAG_KERN | CTLFLAG_LOCKED,
+ 0, 0, sysctl_get_test_mtx_stats, "A", "get test_mtx statistics");
+
+SYSCTL_PROC(_kern, OID_AUTO, test_mtx_contended, CTLTYPE_STRING | CTLFLAG_MASKED | CTLFLAG_RW | CTLFLAG_KERN | CTLFLAG_LOCKED,
+ 0, 0, sysctl_test_mtx_contended, "A", "get statistics for contended mtx test");
+
+SYSCTL_PROC(_kern, OID_AUTO, test_mtx_uncontended, CTLTYPE_STRING | CTLFLAG_MASKED | CTLFLAG_RW | CTLFLAG_KERN | CTLFLAG_LOCKED,
+ 0, 0, sysctl_test_mtx_uncontended, "A", "get statistics for uncontended mtx test");
+
+extern uint64_t MutexSpin;
+
+SYSCTL_QUAD(_kern, OID_AUTO, mutex_spin_abs, CTLFLAG_RW, &MutexSpin,
+ "Spin time in abs for acquiring a kernel mutex");
+
+extern uint64_t low_MutexSpin;
+extern int64_t high_MutexSpin;
+extern unsigned int real_ncpus;
+
+SYSCTL_QUAD(_kern, OID_AUTO, low_mutex_spin_abs, CTLFLAG_RW, &low_MutexSpin,
+ "Low spin threshold in abs for acquiring a kernel mutex");
+
+static int
+sysctl_high_mutex_spin_ns SYSCTL_HANDLER_ARGS
+{
+#pragma unused(oidp, arg1, arg2)
+ int error;
+ int64_t val = 0;
+ int64_t res;
+
+ /* Check if the user is writing to high_MutexSpin, or just reading it */
+ if (req->newptr) {
+ error = SYSCTL_IN(req, &val, sizeof(val));
+ if (error || (val < 0 && val != -1)) {
+ return error;
+ }
+ high_MutexSpin = val;
+ }
+
+ if (high_MutexSpin >= 0) {
+ res = high_MutexSpin;
+ } else {
+ res = low_MutexSpin * real_ncpus;
+ }
+ return SYSCTL_OUT(req, &res, sizeof(res));
+}
+SYSCTL_PROC(_kern, OID_AUTO, high_mutex_spin_abs, CTLFLAG_RW | CTLTYPE_QUAD, 0, 0, sysctl_high_mutex_spin_ns, "I",
+ "High spin threshold in abs for acquiring a kernel mutex");
+
+#if defined (__x86_64__)
+
+semaphore_t sysctl_test_panic_with_thread_sem;
+
+#pragma clang diagnostic push
+#pragma clang diagnostic ignored "-Winfinite-recursion" /* rdar://38801963 */
+__attribute__((noreturn))
+static void
+panic_thread_test_child_spin(void * arg, wait_result_t wres)
+{
+ static int panic_thread_recurse_count = 5;
+
+ if (panic_thread_recurse_count > 0) {
+ panic_thread_recurse_count--;
+ panic_thread_test_child_spin(arg, wres);
+ }
+
+ semaphore_signal(sysctl_test_panic_with_thread_sem);
+ while (1) {
+ ;
+ }
+}
+#pragma clang diagnostic pop
+
+static void
+panic_thread_test_child_park(void * arg __unused, wait_result_t wres __unused)
+{
+ int event;
+
+ assert_wait(&event, THREAD_UNINT);
+ semaphore_signal(sysctl_test_panic_with_thread_sem);
+ thread_block(panic_thread_test_child_park);
+}
+
+static int
+sysctl_test_panic_with_thread SYSCTL_HANDLER_ARGS
+{
+#pragma unused(arg1, arg2)
+ int rval = 0;
+ char str[16] = { '\0' };
+ thread_t child_thread = THREAD_NULL;
+
+ rval = sysctl_handle_string(oidp, str, sizeof(str), req);
+ if (rval != 0 || !req->newptr) {
+ return EINVAL;
+ }
+
+ semaphore_create(kernel_task, &sysctl_test_panic_with_thread_sem, SYNC_POLICY_FIFO, 0);
+
+ /* Create thread to spin or park in continuation */
+ if (strncmp("spin", str, strlen("spin")) == 0) {
+ if (kernel_thread_start(panic_thread_test_child_spin, NULL, &child_thread) != KERN_SUCCESS) {
+ semaphore_destroy(kernel_task, sysctl_test_panic_with_thread_sem);
+ return EBUSY;
+ }
+ } else if (strncmp("continuation", str, strlen("continuation")) == 0) {
+ if (kernel_thread_start(panic_thread_test_child_park, NULL, &child_thread) != KERN_SUCCESS) {
+ semaphore_destroy(kernel_task, sysctl_test_panic_with_thread_sem);
+ return EBUSY;
+ }
+ } else {
+ semaphore_destroy(kernel_task, sysctl_test_panic_with_thread_sem);
+ return EINVAL;
+ }
+
+ semaphore_wait(sysctl_test_panic_with_thread_sem);
+
+ panic_with_thread_context(0, NULL, 0, child_thread, "testing panic_with_thread_context for thread %p", child_thread);
+
+ /* Not reached */
+ return EINVAL;
+}
+
+SYSCTL_PROC(_kern, OID_AUTO, test_panic_with_thread, CTLFLAG_MASKED | CTLFLAG_KERN | CTLFLAG_LOCKED | CTLFLAG_WR | CTLTYPE_STRING,
+ 0, 0, sysctl_test_panic_with_thread, "A", "test panic flow for backtracing a different thread");
+#endif /* defined (__x86_64__) */
+
+#endif /* DEVELOPMENT || DEBUG */
+
+static int
+sysctl_get_owned_vmobjects SYSCTL_HANDLER_ARGS
+{
+#pragma unused(oidp, arg1, arg2)
+
+ /* validate */
+ if (req->newlen != sizeof(mach_port_name_t) || req->newptr == USER_ADDR_NULL ||
+ req->oldidx != 0 || req->newidx != 0 || req->p == NULL) {
+ return EINVAL;
+ }
+
+ int error;
+ mach_port_name_t task_port_name;
+ task_t task;
+ size_t buffer_size = (req->oldptr != USER_ADDR_NULL) ? req->oldlen : 0;
+ vmobject_list_output_t buffer;
+ size_t output_size;
+
+ if (buffer_size) {
+ const size_t min_size = sizeof(vm_object_query_data_t) + sizeof(int64_t);
+
+ if (buffer_size < min_size || buffer_size > INT_MAX) {
+ return EINVAL;
+ }
+
+ buffer = kalloc(buffer_size);
+
+ if (!buffer) {
+ error = ENOMEM;
+ goto sysctl_get_vmobject_list_exit;
+ }
+ } else {
+ buffer = NULL;
+ }
+
+ /* we have a "newptr" (for write) we get a task port name from the caller. */
+ error = SYSCTL_IN(req, &task_port_name, sizeof(mach_port_name_t));
+
+ if (error != 0) {
+ goto sysctl_get_vmobject_list_exit;
+ }
+
+ task = port_name_to_task(task_port_name);
+ if (task == TASK_NULL) {
+ error = ESRCH;
+ goto sysctl_get_vmobject_list_exit;
+ }
+
+ /* copy the vmobjects and vmobject data out of the task */
+ if (buffer_size == 0) {
+ int64_t __size;
+ task_copy_vmobjects(task, NULL, 0, &__size);
+ output_size = (__size > 0) ? __size * sizeof(vm_object_query_data_t) + sizeof(int64_t) : 0;
+ } else {
+ task_copy_vmobjects(task, &buffer->data[0], buffer_size - sizeof(int64_t), &buffer->entries);
+ output_size = buffer->entries * sizeof(vm_object_query_data_t) + sizeof(int64_t);
+ }
+
+ task_deallocate(task);
+
+ error = SYSCTL_OUT(req, (char*) buffer, output_size);
+
+sysctl_get_vmobject_list_exit:
+ if (buffer) {
+ kfree(buffer, buffer_size);
+ }
+
+ return error;
+}
-SYSCTL_QUAD(_vm, OID_AUTO, global_user_wire_limit, CTLFLAG_RW, &vm_global_user_wire_limit, "");
-SYSCTL_QUAD(_vm, OID_AUTO, user_wire_limit, CTLFLAG_RW, &vm_user_wire_limit, "");
+SYSCTL_PROC(_vm, OID_AUTO, get_owned_vmobjects, CTLTYPE_OPAQUE | CTLFLAG_RD | CTLFLAG_WR | CTLFLAG_MASKED | CTLFLAG_KERN | CTLFLAG_LOCKED | CTLFLAG_ANYBODY,
+ 0, 0, sysctl_get_owned_vmobjects, "A", "get owned vmobjects in task");
projects / apple / xnu.git / blobdiff