/*
- * Copyright (c) 2000-2008 Apple Inc. All rights reserved.
+ * Copyright (c) 2000-2018 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, 1997 Apple Computer, Inc. All Rights Reserved */
#include <sys/malloc.h>
#include <sys/proc_internal.h>
#include <sys/kauth.h>
-#include <machine/spl.h>
-
#include <sys/mount_internal.h>
#include <sys/sysproto.h>
#include <mach/vm_map.h>
#include <mach/mach_vm.h>
#include <mach/thread_act.h> /* for thread_policy_set( ) */
-#include <kern/lock.h>
#include <kern/thread.h>
+#include <kern/policy_internal.h>
#include <kern/task.h>
-#include <kern/clock.h> /* for absolutetime_to_microtime() */
-#include <netinet/in.h> /* for TRAFFIC_MGT_SO_* */
-#include <sys/socketvar.h> /* for struct socket */
+#include <kern/clock.h> /* for absolutetime_to_microtime() */
+#include <netinet/in.h> /* for TRAFFIC_MGT_SO_* */
+#include <sys/socketvar.h> /* for struct socket */
+#if NECP
+#include <net/necp.h>
+#endif /* NECP */
#include <vm/vm_map.h>
#include <kern/assert.h>
#include <sys/resource.h>
+#include <sys/priv.h>
+#include <IOKit/IOBSD.h>
+
+#if CONFIG_MACF
+#include <security/mac_framework.h>
+#endif
-int donice(struct proc *curp, struct proc *chgp, int n);
-int dosetrlimit(struct proc *p, u_int which, struct rlimit *limp);
-int uthread_get_background_state(uthread_t);
-static void do_background_socket(struct proc *p, thread_t thread, int priority);
-static int do_background_thread(struct proc *curp, thread_t thread, int priority);
+int donice(struct proc *curp, struct proc *chgp, int n);
+int dosetrlimit(struct proc *p, u_int which, struct rlimit *limp);
+int uthread_get_background_state(uthread_t);
+static void do_background_socket(struct proc *p, thread_t thread);
+static int do_background_thread(thread_t thread, int priority);
static int do_background_proc(struct proc *curp, struct proc *targetp, int priority);
+static int set_gpudeny_proc(struct proc *curp, struct proc *targetp, int priority);
+static int proc_set_darwin_role(proc_t curp, proc_t targetp, int priority);
+static int proc_get_darwin_role(proc_t curp, proc_t targetp, int *priority);
static int get_background_proc(struct proc *curp, struct proc *targetp, int *priority);
-void proc_apply_task_networkbg_internal(proc_t, thread_t);
-void proc_restore_task_networkbg_internal(proc_t, thread_t);
int proc_pid_rusage(int pid, int flavor, user_addr_t buf, int32_t *retval);
-void gather_rusage_info_v2(proc_t p, struct rusage_info_v2 *ru, int flavor);
-int fill_task_rusage_v2(task_t task, struct rusage_info_v2 *ri);
-static void rusage_info_v2_to_v0(struct rusage_info_v0 *ri_v0, struct rusage_info_v2 *ri_v2);
-static void rusage_info_v2_to_v1(struct rusage_info_v1 *ri_v1, struct rusage_info_v2 *ri_v2);
+void gather_rusage_info(proc_t p, rusage_info_current *ru, int flavor);
+int fill_task_rusage(task_t task, rusage_info_current *ri);
+void fill_task_billed_usage(task_t task, rusage_info_current *ri);
+int fill_task_io_rusage(task_t task, rusage_info_current *ri);
+int fill_task_qos_rusage(task_t task, rusage_info_current *ri);
+uint64_t get_task_logical_writes(task_t task);
+void fill_task_monotonic_rusage(task_t task, rusage_info_current *ri);
int proc_get_rusage(proc_t p, int flavor, user_addr_t buffer, __unused int is_zombie);
-rlim_t maxdmap = MAXDSIZ; /* XXX */
-rlim_t maxsmap = MAXSSIZ - PAGE_SIZE; /* XXX */
+rlim_t maxdmap = MAXDSIZ; /* XXX */
+rlim_t maxsmap = MAXSSIZ - PAGE_MAX_SIZE; /* XXX */
/*
* Limits on the number of open files per process, and the number
*
* Note: would be in kern/subr_param.c in FreeBSD.
*/
-__private_extern__ int maxfilesperproc = OPEN_MAX; /* per-proc open files limit */
+__private_extern__ int maxfilesperproc = OPEN_MAX; /* per-proc open files limit */
SYSCTL_INT(_kern, KERN_MAXPROCPERUID, maxprocperuid, CTLFLAG_RW | CTLFLAG_LOCKED,
- &maxprocperuid, 0, "Maximum processes allowed per userid" );
+ &maxprocperuid, 0, "Maximum processes allowed per userid" );
SYSCTL_INT(_kern, KERN_MAXFILESPERPROC, maxfilesperproc, CTLFLAG_RW | CTLFLAG_LOCKED,
- &maxfilesperproc, 0, "Maximum files allowed open per process" );
+ &maxfilesperproc, 0, "Maximum files allowed open per process" );
/* Args and fn for proc_iteration callback used in setpriority */
struct puser_nice_args {
proc_t curp;
- int prio;
- id_t who;
- int * foundp;
- int * errorp;
+ int prio;
+ id_t who;
+ int * foundp;
+ int * errorp;
};
static int puser_donice_callback(proc_t p, void * arg);
/* Args and fn for proc_iteration callback used in setpriority */
struct ppgrp_nice_args {
proc_t curp;
- int prio;
- int * foundp;
- int * errorp;
+ int prio;
+ int * foundp;
+ int * errorp;
};
static int ppgrp_donice_callback(proc_t p, void * arg);
int error = 0;
/* would also test (uap->who < 0), but id_t is unsigned */
- if (uap->who > 0x7fffffff)
- return (EINVAL);
+ if (uap->who > 0x7fffffff) {
+ return EINVAL;
+ }
switch (uap->which) {
-
case PRIO_PROCESS:
if (uap->who == 0) {
p = curp;
low = p->p_nice;
} else {
p = proc_find(uap->who);
- if (p == 0)
+ if (p == 0) {
break;
+ }
low = p->p_nice;
proc_rele(p);
-
}
break;
if (uap->who == 0) {
/* returns the pgrp to ref */
pg = proc_pgrp(curp);
- } else if ((pg = pgfind(uap->who)) == PGRP_NULL) {
+ } else if ((pg = pgfind(uap->who)) == PGRP_NULL) {
break;
}
/* No need for iteration as it is a simple scan */
pgrp_lock(pg);
- for (p = pg->pg_members.lh_first; p != 0; p = p->p_pglist.le_next) {
- if (p->p_nice < low)
+ PGMEMBERS_FOREACH(pg, p) {
+ if (p->p_nice < low) {
low = p->p_nice;
+ }
}
pgrp_unlock(pg);
pg_rele(pg);
}
case PRIO_USER:
- if (uap->who == 0)
+ if (uap->who == 0) {
uap->who = kauth_cred_getuid(kauth_cred_get());
+ }
proc_list_lock();
for (p = allproc.lh_first; p != 0; p = p->p_list.le_next) {
my_cred = kauth_cred_proc_ref(p);
if (kauth_cred_getuid(my_cred) == uap->who &&
- p->p_nice < low)
+ p->p_nice < low) {
low = p->p_nice;
+ }
kauth_cred_unref(&my_cred);
}
case PRIO_DARWIN_THREAD:
/* we currently only support the current thread */
- if (uap->who != 0)
- return (EINVAL);
+ if (uap->who != 0) {
+ return EINVAL;
+ }
- low = proc_get_task_policy(current_task(), current_thread(), TASK_POLICY_INTERNAL, TASK_POLICY_DARWIN_BG);
+ low = proc_get_thread_policy(current_thread(), TASK_POLICY_INTERNAL, TASK_POLICY_DARWIN_BG);
break;
p = curp;
} else {
p = proc_find(uap->who);
- if (p == PROC_NULL)
+ if (p == PROC_NULL) {
break;
+ }
refheld = 1;
}
error = get_background_proc(curp, p, &low);
- if (refheld)
+ if (refheld) {
+ proc_rele(p);
+ }
+ if (error) {
+ return error;
+ }
+ break;
+
+ case PRIO_DARWIN_ROLE:
+ if (uap->who == 0) {
+ p = curp;
+ } else {
+ p = proc_find(uap->who);
+ if (p == PROC_NULL) {
+ break;
+ }
+ refheld = 1;
+ }
+
+ error = proc_get_darwin_role(curp, p, &low);
+
+ if (refheld) {
proc_rele(p);
- if (error)
- return (error);
+ }
+ if (error) {
+ return error;
+ }
break;
default:
- return (EINVAL);
+ return EINVAL;
+ }
+ if (low == PRIO_MAX + 1) {
+ return ESRCH;
}
- if (low == PRIO_MAX + 1)
- return (ESRCH);
*retval = low;
- return (0);
+ return 0;
}
/* call back function used for proc iteration in PRIO_USER */
my_cred = kauth_cred_proc_ref(p);
if (kauth_cred_getuid(my_cred) == pun->who) {
error = donice(pun->curp, p, pun->prio);
- if (pun->errorp != NULL)
+ if (pun->errorp != NULL) {
*pun->errorp = error;
+ }
if (pun->foundp != NULL) {
n = *pun->foundp;
- *pun->foundp = n+1;
+ *pun->foundp = n + 1;
}
}
kauth_cred_unref(&my_cred);
- return(PROC_RETURNED);
+ return PROC_RETURNED;
}
/* call back function used for proc iteration in PRIO_PGRP */
int n;
error = donice(pun->curp, p, pun->prio);
- if (pun->errorp != NULL)
+ if (pun->errorp != NULL) {
*pun->errorp = error;
- if (pun->foundp!= NULL) {
+ }
+ if (pun->foundp != NULL) {
n = *pun->foundp;
- *pun->foundp = n+1;
+ *pun->foundp = n + 1;
}
- return(PROC_RETURNED);
+ return PROC_RETURNED;
}
/*
*/
/* ARGSUSED */
int
-setpriority(struct proc *curp, struct setpriority_args *uap, __unused int32_t *retval)
+setpriority(struct proc *curp, struct setpriority_args *uap, int32_t *retval)
{
struct proc *p;
int found = 0, error = 0;
AUDIT_ARG(value32, uap->prio);
/* would also test (uap->who < 0), but id_t is unsigned */
- if (uap->who > 0x7fffffff)
- return (EINVAL);
+ if (uap->who > 0x7fffffff) {
+ return EINVAL;
+ }
switch (uap->which) {
-
case PRIO_PROCESS:
- if (uap->who == 0)
+ if (uap->who == 0) {
p = curp;
- else {
+ } else {
p = proc_find(uap->who);
- if (p == 0)
+ if (p == 0) {
break;
+ }
refheld = 1;
}
error = donice(curp, p, uap->prio);
found++;
- if (refheld != 0)
+ if (refheld != 0) {
proc_rele(p);
+ }
break;
case PRIO_PGRP: {
struct pgrp *pg = PGRP_NULL;
struct ppgrp_nice_args ppgrp;
-
+
if (uap->who == 0) {
pg = proc_pgrp(curp);
- } else if ((pg = pgfind(uap->who)) == PGRP_NULL)
+ } else if ((pg = pgfind(uap->who)) == PGRP_NULL) {
break;
+ }
ppgrp.curp = curp;
ppgrp.prio = uap->prio;
ppgrp.foundp = &found;
ppgrp.errorp = &error;
-
+
/* PGRP_DROPREF drops the reference on process group */
pgrp_iterate(pg, PGRP_DROPREF, ppgrp_donice_callback, (void *)&ppgrp, NULL, NULL);
case PRIO_USER: {
struct puser_nice_args punice;
- if (uap->who == 0)
+ if (uap->who == 0) {
uap->who = kauth_cred_getuid(kauth_cred_get());
+ }
punice.curp = curp;
punice.prio = uap->prio;
case PRIO_DARWIN_THREAD: {
/* we currently only support the current thread */
- if (uap->who != 0)
- return (EINVAL);
+ if (uap->who != 0) {
+ return EINVAL;
+ }
- error = do_background_thread(curp, current_thread(), uap->prio);
+ error = do_background_thread(current_thread(), uap->prio);
found++;
break;
}
case PRIO_DARWIN_PROCESS: {
- if (uap->who == 0)
+ if (uap->who == 0) {
p = curp;
- else {
+ } else {
p = proc_find(uap->who);
- if (p == 0)
+ if (p == 0) {
break;
+ }
refheld = 1;
}
error = do_background_proc(curp, p, uap->prio);
found++;
- if (refheld != 0)
+ if (refheld != 0) {
+ proc_rele(p);
+ }
+ break;
+ }
+
+ case PRIO_DARWIN_GPU: {
+ if (uap->who == 0) {
+ return EINVAL;
+ }
+
+ p = proc_find(uap->who);
+ if (p == PROC_NULL) {
+ break;
+ }
+
+ error = set_gpudeny_proc(curp, p, uap->prio);
+
+ found++;
+ proc_rele(p);
+ break;
+ }
+
+ case PRIO_DARWIN_ROLE: {
+ if (uap->who == 0) {
+ p = curp;
+ } else {
+ p = proc_find(uap->who);
+ if (p == PROC_NULL) {
+ break;
+ }
+ refheld = 1;
+ }
+
+ error = proc_set_darwin_role(curp, p, uap->prio);
+
+ found++;
+ if (refheld != 0) {
proc_rele(p);
+ }
break;
}
default:
- return (EINVAL);
+ return EINVAL;
+ }
+ if (found == 0) {
+ return ESRCH;
+ }
+ if (error == EIDRM) {
+ *retval = -2;
+ error = 0;
}
- if (found == 0)
- return (ESRCH);
- return (error);
+ return error;
}
error = EPERM;
goto out;
}
- if (n > PRIO_MAX)
+ if (n > PRIO_MAX) {
n = PRIO_MAX;
- if (n < PRIO_MIN)
+ }
+ if (n < PRIO_MIN) {
n = PRIO_MIN;
+ }
if (n < chgp->p_nice && suser(ucred, &curp->p_acflag)) {
error = EACCES;
goto out;
}
#if CONFIG_MACF
error = mac_proc_check_sched(curp, chgp);
- if (error)
+ if (error) {
goto out;
+ }
#endif
proc_lock(chgp);
chgp->p_nice = n;
out:
kauth_cred_unref(&ucred);
kauth_cred_unref(&my_cred);
- return (error);
+ return error;
+}
+
+static int
+set_gpudeny_proc(struct proc *curp, struct proc *targetp, int priority)
+{
+ int error = 0;
+ kauth_cred_t ucred;
+ kauth_cred_t target_cred;
+
+ ucred = kauth_cred_get();
+ target_cred = kauth_cred_proc_ref(targetp);
+
+ /* TODO: Entitlement instead of uid check */
+
+ if (!kauth_cred_issuser(ucred) && kauth_cred_getruid(ucred) &&
+ kauth_cred_getuid(ucred) != kauth_cred_getuid(target_cred) &&
+ kauth_cred_getruid(ucred) != kauth_cred_getuid(target_cred)) {
+ error = EPERM;
+ goto out;
+ }
+
+ if (curp == targetp) {
+ error = EPERM;
+ goto out;
+ }
+
+#if CONFIG_MACF
+ error = mac_proc_check_sched(curp, targetp);
+ if (error) {
+ goto out;
+ }
+#endif
+
+ switch (priority) {
+ case PRIO_DARWIN_GPU_DENY:
+ task_set_gpu_denied(proc_task(targetp), TRUE);
+ break;
+ case PRIO_DARWIN_GPU_ALLOW:
+ task_set_gpu_denied(proc_task(targetp), FALSE);
+ break;
+ default:
+ error = EINVAL;
+ goto out;
+ }
+
+out:
+ kauth_cred_unref(&target_cred);
+ return error;
+}
+
+static int
+proc_set_darwin_role(proc_t curp, proc_t targetp, int priority)
+{
+ int error = 0;
+ uint32_t flagsp = 0;
+
+ kauth_cred_t ucred, target_cred;
+
+ ucred = kauth_cred_get();
+ target_cred = kauth_cred_proc_ref(targetp);
+
+ if (!kauth_cred_issuser(ucred) && kauth_cred_getruid(ucred) &&
+ kauth_cred_getuid(ucred) != kauth_cred_getuid(target_cred) &&
+ kauth_cred_getruid(ucred) != kauth_cred_getuid(target_cred)) {
+ if (priv_check_cred(ucred, PRIV_SETPRIORITY_DARWIN_ROLE, 0) != 0) {
+ error = EPERM;
+ goto out;
+ }
+ }
+
+ if (curp != targetp) {
+#if CONFIG_MACF
+ if ((error = mac_proc_check_sched(curp, targetp))) {
+ goto out;
+ }
+#endif
+ }
+
+ proc_get_darwinbgstate(proc_task(targetp), &flagsp);
+ if ((flagsp & PROC_FLAG_APPLICATION) != PROC_FLAG_APPLICATION) {
+ error = ENOTSUP;
+ goto out;
+ }
+
+ integer_t role = 0;
+
+ if ((error = proc_darwin_role_to_task_role(priority, &role))) {
+ goto out;
+ }
+
+ proc_set_task_policy(proc_task(targetp), TASK_POLICY_ATTRIBUTE,
+ TASK_POLICY_ROLE, role);
+
+out:
+ kauth_cred_unref(&target_cred);
+ return error;
+}
+
+static int
+proc_get_darwin_role(proc_t curp, proc_t targetp, int *priority)
+{
+ int error = 0;
+ int role = 0;
+
+ kauth_cred_t ucred, target_cred;
+
+ ucred = kauth_cred_get();
+ target_cred = kauth_cred_proc_ref(targetp);
+
+ if (!kauth_cred_issuser(ucred) && kauth_cred_getruid(ucred) &&
+ kauth_cred_getuid(ucred) != kauth_cred_getuid(target_cred) &&
+ kauth_cred_getruid(ucred) != kauth_cred_getuid(target_cred)) {
+ error = EPERM;
+ goto out;
+ }
+
+ if (curp != targetp) {
+#if CONFIG_MACF
+ if ((error = mac_proc_check_sched(curp, targetp))) {
+ goto out;
+ }
+#endif
+ }
+
+ role = proc_get_task_policy(proc_task(targetp), TASK_POLICY_ATTRIBUTE, TASK_POLICY_ROLE);
+
+ *priority = proc_task_role_to_darwin_role(role);
+
+out:
+ kauth_cred_unref(&target_cred);
+ return error;
}
+
static int
get_background_proc(struct proc *curp, struct proc *targetp, int *priority)
{
external = (curp == targetp) ? TASK_POLICY_INTERNAL : TASK_POLICY_EXTERNAL;
- *priority = proc_get_task_policy(current_task(), THREAD_NULL, external, TASK_POLICY_DARWIN_BG);
+ *priority = proc_get_task_policy(current_task(), external, TASK_POLICY_DARWIN_BG);
out:
kauth_cred_unref(&target_cred);
- return (error);
+ return error;
}
static int
kauth_cred_t ucred;
kauth_cred_t target_cred;
int external;
- int flavor;
int enable;
ucred = kauth_cred_get();
target_cred = kauth_cred_proc_ref(targetp);
if (!kauth_cred_issuser(ucred) && kauth_cred_getruid(ucred) &&
- kauth_cred_getuid(ucred) != kauth_cred_getuid(target_cred) &&
- kauth_cred_getruid(ucred) != kauth_cred_getuid(target_cred))
- {
+ kauth_cred_getuid(ucred) != kauth_cred_getuid(target_cred) &&
+ kauth_cred_getruid(ucred) != kauth_cred_getuid(target_cred)) {
error = EPERM;
goto out;
}
#if CONFIG_MACF
error = mac_proc_check_sched(curp, targetp);
- if (error)
+ if (error) {
goto out;
+ }
#endif
external = (curp == targetp) ? TASK_POLICY_INTERNAL : TASK_POLICY_EXTERNAL;
switch (priority) {
- case PRIO_DARWIN_NONUI:
- flavor = TASK_POLICY_GPU_DENY;
- enable = TASK_POLICY_ENABLE;
- break;
- case PRIO_DARWIN_BG:
- flavor = TASK_POLICY_DARWIN_BG;
- enable = TASK_POLICY_ENABLE;
- break;
- default:
- /*
- * DARWIN_BG and GPU_DENY disable are overloaded,
- * so we need to turn them both off at the same time
- *
- * TODO: It would be nice to fail if priority != 0
- */
- flavor = TASK_POLICY_DARWIN_BG_AND_GPU;
- enable = TASK_POLICY_DISABLE;
- break;
+ case PRIO_DARWIN_BG:
+ enable = TASK_POLICY_ENABLE;
+ break;
+ case PRIO_DARWIN_NONUI:
+ /* ignored for compatibility */
+ goto out;
+ default:
+ /* TODO: EINVAL if priority != 0 */
+ enable = TASK_POLICY_DISABLE;
+ break;
}
- proc_set_task_policy(proc_task(targetp), THREAD_NULL, external, flavor, enable);
+ proc_set_task_policy(proc_task(targetp), external, TASK_POLICY_DARWIN_BG, enable);
out:
kauth_cred_unref(&target_cred);
- return (error);
+ return error;
}
-static void
-do_background_socket(struct proc *p, thread_t thread, int priority)
+static void
+do_background_socket(struct proc *p, thread_t thread)
{
#if SOCKETS
struct filedesc *fdp;
struct fileproc *fp;
- int i;
+ int i, background;
- if (priority == PRIO_DARWIN_BG) {
+ proc_fdlock(p);
+
+ if (thread != THREAD_NULL) {
+ background = proc_get_effective_thread_policy(thread, TASK_POLICY_ALL_SOCKETS_BG);
+ } else {
+ background = proc_get_effective_task_policy(proc_task(p), TASK_POLICY_ALL_SOCKETS_BG);
+ }
+
+ if (background) {
/*
* For PRIO_DARWIN_PROCESS (thread is NULL), simply mark
* the sockets with the background flag. There's nothing
* to do here for the PRIO_DARWIN_THREAD case.
*/
if (thread == THREAD_NULL) {
- proc_fdlock(p);
fdp = p->p_fd;
for (i = 0; i < fdp->fd_nfiles; i++) {
- struct socket *sockp;
-
fp = fdp->fd_ofiles[i];
- if (fp == NULL || (fdp->fd_ofileflags[i] & UF_RESERVED) != 0 ||
- FILEGLOB_DTYPE(fp->f_fglob) != DTYPE_SOCKET) {
+ if (fp == NULL || (fdp->fd_ofileflags[i] & UF_RESERVED) != 0) {
continue;
}
- sockp = (struct socket *)fp->f_fglob->fg_data;
- socket_set_traffic_mgt_flags(sockp, TRAFFIC_MGT_SO_BACKGROUND);
- sockp->so_background_thread = NULL;
+ if (FILEGLOB_DTYPE(fp->f_fglob) == DTYPE_SOCKET) {
+ struct socket *sockp = (struct socket *)fp->f_fglob->fg_data;
+ socket_set_traffic_mgt_flags(sockp, TRAFFIC_MGT_SO_BACKGROUND);
+ sockp->so_background_thread = NULL;
+ }
+#if NECP
+ else if (FILEGLOB_DTYPE(fp->f_fglob) == DTYPE_NETPOLICY) {
+ necp_set_client_as_background(p, fp, background);
+ }
+#endif /* NECP */
}
- proc_fdunlock(p);
}
-
} else {
-
/* disable networking IO throttle.
- * NOTE - It is a known limitation of the current design that we
- * could potentially clear TRAFFIC_MGT_SO_BACKGROUND bit for
- * sockets created by other threads within this process.
+ * NOTE - It is a known limitation of the current design that we
+ * could potentially clear TRAFFIC_MGT_SO_BACKGROUND bit for
+ * sockets created by other threads within this process.
*/
- proc_fdlock(p);
fdp = p->p_fd;
- for ( i = 0; i < fdp->fd_nfiles; i++ ) {
+ for (i = 0; i < fdp->fd_nfiles; i++) {
struct socket *sockp;
- fp = fdp->fd_ofiles[ i ];
- if ( fp == NULL || (fdp->fd_ofileflags[ i ] & UF_RESERVED) != 0 ||
- FILEGLOB_DTYPE(fp->f_fglob) != DTYPE_SOCKET ) {
+ fp = fdp->fd_ofiles[i];
+ if (fp == NULL || (fdp->fd_ofileflags[i] & UF_RESERVED) != 0) {
continue;
}
- sockp = (struct socket *)fp->f_fglob->fg_data;
- /* skip if only clearing this thread's sockets */
- if ((thread) && (sockp->so_background_thread != thread)) {
- continue;
+ if (FILEGLOB_DTYPE(fp->f_fglob) == DTYPE_SOCKET) {
+ sockp = (struct socket *)fp->f_fglob->fg_data;
+ /* skip if only clearing this thread's sockets */
+ if ((thread) && (sockp->so_background_thread != thread)) {
+ continue;
+ }
+ socket_clear_traffic_mgt_flags(sockp, TRAFFIC_MGT_SO_BACKGROUND);
+ sockp->so_background_thread = NULL;
}
- socket_clear_traffic_mgt_flags(sockp, TRAFFIC_MGT_SO_BACKGROUND);
- sockp->so_background_thread = NULL;
+#if NECP
+ else if (FILEGLOB_DTYPE(fp->f_fglob) == DTYPE_NETPOLICY) {
+ necp_set_client_as_background(p, fp, background);
+ }
+#endif /* NECP */
}
- proc_fdunlock(p);
}
+
+ proc_fdunlock(p);
#else
-#pragma unused(p, thread, priority)
+#pragma unused(p, thread)
#endif
}
/*
* do_background_thread
+ *
+ * Requires: thread reference
+ *
* Returns: 0 Success
* EPERM Tried to background while in vfork
* XXX - todo - does this need a MACF hook?
*/
static int
-do_background_thread(struct proc *curp, thread_t thread, int priority)
+do_background_thread(thread_t thread, int priority)
{
struct uthread *ut;
int enable, external;
+ int rv = 0;
ut = get_bsdthread_info(thread);
/* Backgrounding is unsupported for threads in vfork */
- if ((ut->uu_flag & UT_VFORK) != 0)
- return(EPERM);
+ if ((ut->uu_flag & UT_VFORK) != 0) {
+ return EPERM;
+ }
+
+ /* Backgrounding is unsupported for workq threads */
+ if (thread_is_static_param(thread)) {
+ return EPERM;
+ }
+
+ /* Not allowed to combine QoS and DARWIN_BG, doing so strips the QoS */
+ if (thread_has_qos_policy(thread)) {
+ thread_remove_qos_policy(thread);
+ rv = EIDRM;
+ }
/* TODO: Fail if someone passes something besides 0 or PRIO_DARWIN_BG */
enable = (priority == PRIO_DARWIN_BG) ? TASK_POLICY_ENABLE : TASK_POLICY_DISABLE;
external = (current_thread() == thread) ? TASK_POLICY_INTERNAL : TASK_POLICY_EXTERNAL;
- proc_set_task_policy_thread(curp->task, thread_tid(thread), external,
- TASK_POLICY_DARWIN_BG, enable);
+ proc_set_thread_policy(thread, external, TASK_POLICY_DARWIN_BG, enable);
- return(0);
+ return rv;
}
int error;
if ((error = copyin(uap->rlp, (caddr_t)&alim,
- sizeof (struct rlimit))))
- return (error);
+ sizeof(struct rlimit)))) {
+ return error;
+ }
- return (dosetrlimit(p, uap->which, &alim));
+ return dosetrlimit(p, uap->which, &alim);
}
/*
{
struct rlimit *alimp;
int error;
- kern_return_t kr;
+ kern_return_t kr;
int posix = (which & _RLIMIT_POSIX_FLAG) ? 1 : 0;
/* Mask out POSIX flag, saved above */
which &= ~_RLIMIT_POSIX_FLAG;
- if (which >= RLIM_NLIMITS)
- return (EINVAL);
+ if (which >= RLIM_NLIMITS) {
+ return EINVAL;
+ }
alimp = &p->p_rlimit[which];
- if (limp->rlim_cur > limp->rlim_max)
+ if (limp->rlim_cur > limp->rlim_max) {
return EINVAL;
+ }
- if (limp->rlim_cur > alimp->rlim_max ||
- limp->rlim_max > alimp->rlim_max)
+ if (limp->rlim_cur > alimp->rlim_max ||
+ limp->rlim_max > alimp->rlim_max) {
if ((error = suser(kauth_cred_get(), &p->p_acflag))) {
- return (error);
+ return error;
+ }
}
proc_limitblock(p);
if ((error = proc_limitreplace(p)) != 0) {
proc_limitunblock(p);
- return(error);
+ return error;
}
alimp = &p->p_rlimit[which];
-
- switch (which) {
+ switch (which) {
case RLIMIT_CPU:
if (limp->rlim_cur == RLIM_INFINITY) {
task_vtimer_clear(p->task, TASK_VTIMER_RLIM);
timerclear(&p->p_rlim_cpu);
- }
- else {
- task_absolutetime_info_data_t tinfo;
- mach_msg_type_number_t count;
- struct timeval ttv, tv;
- clock_sec_t tv_sec;
- clock_usec_t tv_usec;
+ } else {
+ task_absolutetime_info_data_t tinfo;
+ mach_msg_type_number_t count;
+ struct timeval ttv, tv;
+ clock_sec_t tv_sec;
+ clock_usec_t tv_usec;
count = TASK_ABSOLUTETIME_INFO_COUNT;
task_info(p->task, TASK_ABSOLUTETIME_INFO,
- (task_info_t)&tinfo, &count);
+ (task_info_t)&tinfo, &count);
absolutetime_to_microtime(tinfo.total_user + tinfo.total_system,
- &tv_sec, &tv_usec);
+ &tv_sec, &tv_usec);
ttv.tv_sec = tv_sec;
ttv.tv_usec = tv_usec;
timersub(&tv, &ttv, &p->p_rlim_cpu);
timerclear(&tv);
- if (timercmp(&p->p_rlim_cpu, &tv, >))
+ if (timercmp(&p->p_rlim_cpu, &tv, >)) {
task_vtimer_set(p->task, TASK_VTIMER_RLIM);
- else {
+ } else {
task_vtimer_clear(p->task, TASK_VTIMER_RLIM);
timerclear(&p->p_rlim_cpu);
break;
case RLIMIT_DATA:
- if (limp->rlim_cur > maxdmap)
+ if (limp->rlim_cur > maxdmap) {
limp->rlim_cur = maxdmap;
- if (limp->rlim_max > maxdmap)
+ }
+ if (limp->rlim_max > maxdmap) {
limp->rlim_max = maxdmap;
+ }
break;
case RLIMIT_STACK:
+ if (p->p_lflag & P_LCUSTOM_STACK) {
+ /* Process has a custom stack set - rlimit cannot be used to change it */
+ error = EINVAL;
+ goto out;
+ }
+
/* Disallow illegal stack size instead of clipping */
if (limp->rlim_cur > maxsmap ||
limp->rlim_max > maxsmap) {
if (posix) {
error = EINVAL;
goto out;
- }
- else {
- /*
- * 4797860 - workaround poorly written installers by
- * doing previous implementation (< 10.5) when caller
+ } else {
+ /*
+ * 4797860 - workaround poorly written installers by
+ * doing previous implementation (< 10.5) when caller
* is non-POSIX conforming.
*/
- if (limp->rlim_cur > maxsmap)
+ if (limp->rlim_cur > maxsmap) {
limp->rlim_cur = maxsmap;
- if (limp->rlim_max > maxsmap)
+ }
+ if (limp->rlim_max > maxsmap) {
limp->rlim_max = maxsmap;
+ }
}
}
if (limp->rlim_cur > alimp->rlim_cur) {
user_addr_t addr;
user_size_t size;
-
- /* grow stack */
- size = round_page_64(limp->rlim_cur);
- size -= round_page_64(alimp->rlim_cur);
+
+ /* grow stack */
+ size = round_page_64(limp->rlim_cur);
+ size -= round_page_64(alimp->rlim_cur);
addr = p->user_stack - round_page_64(limp->rlim_cur);
- kr = mach_vm_protect(current_map(),
- addr, size,
- FALSE, VM_PROT_DEFAULT);
+ kr = mach_vm_protect(current_map(),
+ addr, size,
+ FALSE, VM_PROT_DEFAULT);
if (kr != KERN_SUCCESS) {
error = EINVAL;
goto out;
user_size_t size;
user_addr_t cur_sp;
- /* shrink stack */
+ /* shrink stack */
/*
* First check if new stack limit would agree
* Get the current thread's stack pointer...
*/
cur_sp = thread_adjuserstack(current_thread(),
- 0);
+ 0);
if (cur_sp <= p->user_stack &&
cur_sp > (p->user_stack -
- round_page_64(alimp->rlim_cur))) {
+ round_page_64(alimp->rlim_cur))) {
/* stack pointer is in main stack */
if (cur_sp <= (p->user_stack -
- round_page_64(limp->rlim_cur))) {
+ round_page_64(limp->rlim_cur))) {
/*
* New limit would cause
* current usage to be invalid:
error = EINVAL;
goto out;
}
-
+
size = round_page_64(alimp->rlim_cur);
size -= round_page_64(limp->rlim_cur);
addr = p->user_stack - round_page_64(alimp->rlim_cur);
kr = mach_vm_protect(current_map(),
- addr, size,
- FALSE, VM_PROT_NONE);
+ addr, size,
+ FALSE, VM_PROT_NONE);
if (kr != KERN_SUCCESS) {
error = EINVAL;
goto out;
break;
case RLIMIT_NOFILE:
- /*
+ /*
* Only root can set the maxfiles limits, as it is
* systemwide resource. If we are expecting POSIX behavior,
* instead of clamping the value, return EINVAL. We do this
* because historically, people have been able to attempt to
* set RLIM_INFINITY to get "whatever the maximum is".
- */
- if ( kauth_cred_issuser(kauth_cred_get()) ) {
+ */
+ if (kauth_cred_issuser(kauth_cred_get())) {
if (limp->rlim_cur != alimp->rlim_cur &&
limp->rlim_cur > (rlim_t)maxfiles) {
- if (posix) {
+ if (posix) {
error = EINVAL;
goto out;
}
limp->rlim_cur = maxfiles;
}
if (limp->rlim_max != alimp->rlim_max &&
- limp->rlim_max > (rlim_t)maxfiles)
+ limp->rlim_max > (rlim_t)maxfiles) {
limp->rlim_max = maxfiles;
- }
- else {
+ }
+ } else {
if (limp->rlim_cur != alimp->rlim_cur &&
limp->rlim_cur > (rlim_t)maxfilesperproc) {
- if (posix) {
+ if (posix) {
error = EINVAL;
goto out;
}
limp->rlim_cur = maxfilesperproc;
}
if (limp->rlim_max != alimp->rlim_max &&
- limp->rlim_max > (rlim_t)maxfilesperproc)
+ limp->rlim_max > (rlim_t)maxfilesperproc) {
limp->rlim_max = maxfilesperproc;
+ }
}
break;
case RLIMIT_NPROC:
- /*
+ /*
* Only root can set to the maxproc limits, as it is
* systemwide resource; all others are limited to
* maxprocperuid (presumably less than maxproc).
*/
- if ( kauth_cred_issuser(kauth_cred_get()) ) {
- if (limp->rlim_cur > (rlim_t)maxproc)
+ if (kauth_cred_issuser(kauth_cred_get())) {
+ if (limp->rlim_cur > (rlim_t)maxproc) {
limp->rlim_cur = maxproc;
- if (limp->rlim_max > (rlim_t)maxproc)
+ }
+ if (limp->rlim_max > (rlim_t)maxproc) {
limp->rlim_max = maxproc;
- }
- else {
- if (limp->rlim_cur > (rlim_t)maxprocperuid)
+ }
+ } else {
+ if (limp->rlim_cur > (rlim_t)maxprocperuid) {
limp->rlim_cur = maxprocperuid;
- if (limp->rlim_max > (rlim_t)maxprocperuid)
+ }
+ if (limp->rlim_max > (rlim_t)maxprocperuid) {
limp->rlim_max = maxprocperuid;
+ }
}
break;
vm_map_set_user_wire_limit(current_map(), limp->rlim_cur);
break;
-
} /* switch... */
proc_lock(p);
*alimp = *limp;
error = 0;
out:
proc_limitunblock(p);
- return (error);
+ return error;
}
/* ARGSUSED */
int
getrlimit(struct proc *p, struct getrlimit_args *uap, __unused int32_t *retval)
{
- struct rlimit lim;
+ struct rlimit lim = {};
/*
* Take out flag now in case we need to use it to trigger variant
*/
uap->which &= ~_RLIMIT_POSIX_FLAG;
- if (uap->which >= RLIM_NLIMITS)
- return (EINVAL);
+ if (uap->which >= RLIM_NLIMITS) {
+ return EINVAL;
+ }
proc_limitget(p, uap->which, &lim);
- return (copyout((caddr_t)&lim,
- uap->rlp, sizeof (struct rlimit)));
+ return copyout((caddr_t)&lim,
+ uap->rlp, sizeof(struct rlimit));
}
/*
void
calcru(struct proc *p, struct timeval *up, struct timeval *sp, struct timeval *ip)
{
- task_t task;
+ task_t task;
timerclear(up);
timerclear(sp);
- if (ip != NULL)
+ if (ip != NULL) {
timerclear(ip);
+ }
task = p->task;
if (task) {
task_events_info_data_t teventsinfo;
mach_msg_type_number_t task_info_count, task_ttimes_count;
mach_msg_type_number_t task_events_count;
- struct timeval ut,st;
+ struct timeval ut, st;
- task_info_count = MACH_TASK_BASIC_INFO_COUNT;
+ task_info_count = MACH_TASK_BASIC_INFO_COUNT;
task_info(task, MACH_TASK_BASIC_INFO,
- (task_info_t)&tinfo, &task_info_count);
+ (task_info_t)&tinfo, &task_info_count);
ut.tv_sec = tinfo.user_time.seconds;
ut.tv_usec = tinfo.user_time.microseconds;
st.tv_sec = tinfo.system_time.seconds;
task_ttimes_count = TASK_THREAD_TIMES_INFO_COUNT;
task_info(task, TASK_THREAD_TIMES_INFO,
- (task_info_t)&ttimesinfo, &task_ttimes_count);
+ (task_info_t)&ttimesinfo, &task_ttimes_count);
ut.tv_sec = ttimesinfo.user_time.seconds;
ut.tv_usec = ttimesinfo.user_time.microseconds;
task_events_count = TASK_EVENTS_INFO_COUNT;
task_info(task, TASK_EVENTS_INFO,
- (task_info_t)&teventsinfo, &task_events_count);
+ (task_info_t)&teventsinfo, &task_events_count);
/*
* No need to lock "p": this does not need to be
* completely consistent, right ?
*/
p->p_stats->p_ru.ru_minflt = (teventsinfo.faults -
- teventsinfo.pageins);
+ teventsinfo.pageins);
p->p_stats->p_ru.ru_majflt = teventsinfo.pageins;
p->p_stats->p_ru.ru_nivcsw = (teventsinfo.csw -
- p->p_stats->p_ru.ru_nvcsw);
- if (p->p_stats->p_ru.ru_nivcsw < 0)
+ p->p_stats->p_ru.ru_nvcsw);
+ if (p->p_stats->p_ru.ru_nivcsw < 0) {
p->p_stats->p_ru.ru_nivcsw = 0;
+ }
p->p_stats->p_ru.ru_maxrss = tinfo.resident_size_max;
}
getrusage(struct proc *p, struct getrusage_args *uap, __unused int32_t *retval)
{
struct rusage *rup, rubuf;
- struct user64_rusage rubuf64;
- struct user32_rusage rubuf32;
- size_t retsize = sizeof(rubuf); /* default: 32 bits */
- caddr_t retbuf = (caddr_t)&rubuf; /* default: 32 bits */
+ struct user64_rusage rubuf64 = {};
+ struct user32_rusage rubuf32 = {};
+ size_t retsize = sizeof(rubuf); /* default: 32 bits */
+ caddr_t retbuf = (caddr_t)&rubuf; /* default: 32 bits */
struct timeval utime;
struct timeval stime;
break;
default:
- return (EINVAL);
+ return EINVAL;
}
if (IS_64BIT_PROCESS(p)) {
retsize = sizeof(rubuf64);
munge_user32_rusage(&rubuf, &rubuf32);
}
- return (copyout(retbuf, uap->rusage, retsize));
+ return copyout(retbuf, uap->rusage, retsize);
}
void
timeradd(&ru->ru_utime, &ru2->ru_utime, &ru->ru_utime);
timeradd(&ru->ru_stime, &ru2->ru_stime, &ru->ru_stime);
- if (ru->ru_maxrss < ru2->ru_maxrss)
+ if (ru->ru_maxrss < ru2->ru_maxrss) {
ru->ru_maxrss = ru2->ru_maxrss;
+ }
ip = &ru->ru_first; ip2 = &ru2->ru_first;
- for (i = &ru->ru_last - &ru->ru_first; i >= 0; i--)
+ for (i = &ru->ru_last - &ru->ru_first; i >= 0; i--) {
*ip++ += *ip2++;
+ }
}
/*
* Add the rusage stats of child in parent.
- *
+ *
* It adds rusage statistics of child process and statistics of all its
* children to its parent.
*
* Note: proc lock of parent should be held while calling this function.
*/
void
-update_rusage_info_child(struct rusage_info_child *ri, struct rusage_info_v2 *ri2)
+update_rusage_info_child(struct rusage_info_child *ri, rusage_info_current *ri_current)
{
- ri->ri_child_user_time += (ri2->ri_user_time +
- ri2->ri_child_user_time);
- ri->ri_child_system_time += (ri2->ri_system_time +
- ri2->ri_child_system_time);
- ri->ri_child_pkg_idle_wkups += (ri2->ri_pkg_idle_wkups +
- ri2->ri_child_pkg_idle_wkups);
- ri->ri_child_interrupt_wkups += (ri2->ri_interrupt_wkups +
- ri2->ri_child_interrupt_wkups);
- ri->ri_child_pageins += (ri2->ri_pageins +
- ri2->ri_child_pageins);
- ri->ri_child_elapsed_abstime += ((ri2->ri_proc_exit_abstime -
- ri2->ri_proc_start_abstime) + ri2->ri_child_elapsed_abstime);
+ ri->ri_child_user_time += (ri_current->ri_user_time +
+ ri_current->ri_child_user_time);
+ ri->ri_child_system_time += (ri_current->ri_system_time +
+ ri_current->ri_child_system_time);
+ ri->ri_child_pkg_idle_wkups += (ri_current->ri_pkg_idle_wkups +
+ ri_current->ri_child_pkg_idle_wkups);
+ ri->ri_child_interrupt_wkups += (ri_current->ri_interrupt_wkups +
+ ri_current->ri_child_interrupt_wkups);
+ ri->ri_child_pageins += (ri_current->ri_pageins +
+ ri_current->ri_child_pageins);
+ ri->ri_child_elapsed_abstime += ((ri_current->ri_proc_exit_abstime -
+ ri_current->ri_proc_start_abstime) + ri_current->ri_child_elapsed_abstime);
}
void
proc_list_lock();
- if (--p->p_limit->pl_refcnt == 0) {
+ if (--p->p_limit->pl_refcnt == 0) {
freelim = p->p_limit;
p->p_limit = NULL;
}
}
proc_list_unlock();
- if (freelim != NULL)
+ if (freelim != NULL) {
FREE_ZONE(freelim, sizeof *p->p_limit, M_PLIMIT);
- if (freeoldlim != NULL)
+ }
+ if (freeoldlim != NULL) {
FREE_ZONE(freeoldlim, sizeof *p->p_olimit, M_PLIMIT);
+ }
}
}
p->p_lflag |= P_LLIMCHANGE;
proc_unlock(p);
-
}
if (p->p_limit->pl_refcnt == 1) {
proc_list_unlock();
- return(0);
+ return 0;
}
-
+
proc_list_unlock();
MALLOC_ZONE(copy, struct plimit *,
- sizeof(struct plimit), M_PLIMIT, M_WAITOK);
+ sizeof(struct plimit), M_PLIMIT, M_WAITOK);
if (copy == NULL) {
- return(ENOMEM);
+ return ENOMEM;
}
proc_list_lock();
p->p_limit = copy;
proc_list_unlock();
- return(0);
+ return 0;
}
+static int
+iopolicysys_disk(struct proc *p, int cmd, int scope, int policy, struct _iopol_param_t *iop_param);
+static int
+iopolicysys_vfs_hfs_case_sensitivity(struct proc *p, int cmd, int scope, int policy, struct _iopol_param_t *iop_param);
+static int
+iopolicysys_vfs_atime_updates(struct proc *p, int cmd, int scope, int policy, struct _iopol_param_t *iop_param);
+
/*
* iopolicysys
*
* EINVAL Invalid command or invalid policy arguments
*
*/
-
-static int
-iopolicysys_disk(struct proc *p, int cmd, int scope, int policy, struct _iopol_param_t *iop_param);
-static int
-iopolicysys_vfs(struct proc *p, int cmd, int scope, int policy, struct _iopol_param_t *iop_param);
-
int
-iopolicysys(struct proc *p, struct iopolicysys_args *uap, __unused int32_t *retval)
+iopolicysys(struct proc *p, struct iopolicysys_args *uap, int32_t *retval)
{
int error = 0;
struct _iopol_param_t iop_param;
- if ((error = copyin(uap->arg, &iop_param, sizeof(iop_param))) != 0)
+ if ((error = copyin(uap->arg, &iop_param, sizeof(iop_param))) != 0) {
goto out;
+ }
switch (iop_param.iop_iotype) {
- case IOPOL_TYPE_DISK:
- error = iopolicysys_disk(p, uap->cmd, iop_param.iop_scope, iop_param.iop_policy, &iop_param);
- if (error)
- goto out;
- break;
- case IOPOL_TYPE_VFS_HFS_CASE_SENSITIVITY:
- error = iopolicysys_vfs(p, uap->cmd, iop_param.iop_scope, iop_param.iop_policy, &iop_param);
- if (error)
- goto out;
- break;
- default:
- error = EINVAL;
+ case IOPOL_TYPE_DISK:
+ error = iopolicysys_disk(p, uap->cmd, iop_param.iop_scope, iop_param.iop_policy, &iop_param);
+ if (error == EIDRM) {
+ *retval = -2;
+ error = 0;
+ }
+ if (error) {
+ goto out;
+ }
+ break;
+ case IOPOL_TYPE_VFS_HFS_CASE_SENSITIVITY:
+ error = iopolicysys_vfs_hfs_case_sensitivity(p, uap->cmd, iop_param.iop_scope, iop_param.iop_policy, &iop_param);
+ if (error) {
goto out;
+ }
+ break;
+ case IOPOL_TYPE_VFS_ATIME_UPDATES:
+ error = iopolicysys_vfs_atime_updates(p, uap->cmd, iop_param.iop_scope, iop_param.iop_policy, &iop_param);
+ if (error) {
+ goto out;
+ }
+ break;
+ default:
+ error = EINVAL;
+ goto out;
}
/* Individual iotype handlers are expected to update iop_param, if requested with a GET command */
if (uap->cmd == IOPOL_CMD_GET) {
error = copyout((caddr_t)&iop_param, uap->arg, sizeof(iop_param));
- if (error)
+ if (error) {
goto out;
+ }
}
out:
- return (error);
+ return error;
}
static int
iopolicysys_disk(struct proc *p __unused, int cmd, int scope, int policy, struct _iopol_param_t *iop_param)
{
- int error = 0;
- thread_t thread;
- int policy_flavor;
+ int error = 0;
+ thread_t thread;
+ int policy_flavor;
/* Validate scope */
switch (scope) {
- case IOPOL_SCOPE_PROCESS:
- thread = THREAD_NULL;
- policy_flavor = TASK_POLICY_IOPOL;
- break;
+ case IOPOL_SCOPE_PROCESS:
+ thread = THREAD_NULL;
+ policy_flavor = TASK_POLICY_IOPOL;
+ break;
- case IOPOL_SCOPE_THREAD:
- thread = current_thread();
- policy_flavor = TASK_POLICY_IOPOL;
- break;
+ case IOPOL_SCOPE_THREAD:
+ thread = current_thread();
+ policy_flavor = TASK_POLICY_IOPOL;
- case IOPOL_SCOPE_DARWIN_BG:
- thread = THREAD_NULL;
- policy_flavor = TASK_POLICY_DARWIN_BG_IOPOL;
- break;
-
- default:
- error = EINVAL;
- goto out;
- }
-
- /* Validate policy */
- if (cmd == IOPOL_CMD_SET) {
- switch (policy) {
+ /* Not allowed to combine QoS and (non-PASSIVE) IO policy, doing so strips the QoS */
+ if (cmd == IOPOL_CMD_SET && thread_has_qos_policy(thread)) {
+ switch (policy) {
case IOPOL_DEFAULT:
- if (scope == IOPOL_SCOPE_DARWIN_BG) {
- /* the current default BG throttle level is UTILITY */
- policy = IOPOL_UTILITY;
- } else {
- policy = IOPOL_IMPORTANT;
- }
+ case IOPOL_PASSIVE:
break;
case IOPOL_UTILITY:
- /* fall-through */
case IOPOL_THROTTLE:
- /* These levels are OK */
- break;
case IOPOL_IMPORTANT:
- /* fall-through */
case IOPOL_STANDARD:
- /* fall-through */
- case IOPOL_PASSIVE:
- if (scope == IOPOL_SCOPE_DARWIN_BG) {
- /* These levels are invalid for BG */
- error = EINVAL;
- goto out;
- } else {
- /* OK for other scopes */
+ if (!thread_is_static_param(thread)) {
+ thread_remove_qos_policy(thread);
+ /*
+ * This is not an error case, this is to return a marker to user-space that
+ * we stripped the thread of its QoS class.
+ */
+ error = EIDRM;
+ break;
}
- break;
+ /* otherwise, fall through to the error case. */
default:
error = EINVAL;
goto out;
+ }
}
+ break;
+
+ case IOPOL_SCOPE_DARWIN_BG:
+#if CONFIG_EMBEDDED
+ /* Embedded doesn't want this as BG is always IOPOL_THROTTLE */
+ error = ENOTSUP;
+ goto out;
+#else /* CONFIG_EMBEDDED */
+ thread = THREAD_NULL;
+ policy_flavor = TASK_POLICY_DARWIN_BG_IOPOL;
+ break;
+#endif /* CONFIG_EMBEDDED */
+
+ default:
+ error = EINVAL;
+ goto out;
}
- /* Perform command */
- switch(cmd) {
- case IOPOL_CMD_SET:
- proc_set_task_policy(current_task(), thread,
- TASK_POLICY_INTERNAL, policy_flavor,
- policy);
+ /* Validate policy */
+ if (cmd == IOPOL_CMD_SET) {
+ switch (policy) {
+ case IOPOL_DEFAULT:
+ if (scope == IOPOL_SCOPE_DARWIN_BG) {
+ /* the current default BG throttle level is UTILITY */
+ policy = IOPOL_UTILITY;
+ } else {
+ policy = IOPOL_IMPORTANT;
+ }
break;
- case IOPOL_CMD_GET:
- policy = proc_get_task_policy(current_task(), thread,
- TASK_POLICY_INTERNAL, policy_flavor);
-
- iop_param->iop_policy = policy;
+ case IOPOL_UTILITY:
+ /* fall-through */
+ case IOPOL_THROTTLE:
+ /* These levels are OK */
break;
- default:
- error = EINVAL; /* unknown command */
+ case IOPOL_IMPORTANT:
+ /* fall-through */
+ case IOPOL_STANDARD:
+ /* fall-through */
+ case IOPOL_PASSIVE:
+ if (scope == IOPOL_SCOPE_DARWIN_BG) {
+ /* These levels are invalid for BG */
+ error = EINVAL;
+ goto out;
+ } else {
+ /* OK for other scopes */
+ }
break;
+ default:
+ error = EINVAL;
+ goto out;
+ }
+ }
+
+ /* Perform command */
+ switch (cmd) {
+ case IOPOL_CMD_SET:
+ if (thread != THREAD_NULL) {
+ proc_set_thread_policy(thread, TASK_POLICY_INTERNAL, policy_flavor, policy);
+ } else {
+ proc_set_task_policy(current_task(), TASK_POLICY_INTERNAL, policy_flavor, policy);
+ }
+ break;
+ case IOPOL_CMD_GET:
+ if (thread != THREAD_NULL) {
+ policy = proc_get_thread_policy(thread, TASK_POLICY_INTERNAL, policy_flavor);
+ } else {
+ policy = proc_get_task_policy(current_task(), TASK_POLICY_INTERNAL, policy_flavor);
+ }
+ iop_param->iop_policy = policy;
+ break;
+ default:
+ error = EINVAL; /* unknown command */
+ break;
}
out:
- return (error);
+ return error;
}
static int
-iopolicysys_vfs(struct proc *p, int cmd, int scope, int policy, struct _iopol_param_t *iop_param)
+iopolicysys_vfs_hfs_case_sensitivity(struct proc *p, int cmd, int scope, int policy, struct _iopol_param_t *iop_param)
{
- int error = 0;
+ int error = 0;
/* Validate scope */
switch (scope) {
- case IOPOL_SCOPE_PROCESS:
- /* Only process OK */
- break;
- default:
- error = EINVAL;
- goto out;
+ case IOPOL_SCOPE_PROCESS:
+ /* Only process OK */
+ break;
+ default:
+ error = EINVAL;
+ goto out;
}
/* Validate policy */
if (cmd == IOPOL_CMD_SET) {
switch (policy) {
- case IOPOL_VFS_HFS_CASE_SENSITIVITY_DEFAULT:
- /* fall-through */
- case IOPOL_VFS_HFS_CASE_SENSITIVITY_FORCE_CASE_SENSITIVE:
- /* These policies are OK */
- break;
- default:
- error = EINVAL;
- goto out;
+ case IOPOL_VFS_HFS_CASE_SENSITIVITY_DEFAULT:
+ /* fall-through */
+ case IOPOL_VFS_HFS_CASE_SENSITIVITY_FORCE_CASE_SENSITIVE:
+ /* These policies are OK */
+ break;
+ default:
+ error = EINVAL;
+ goto out;
}
}
/* Perform command */
- switch(cmd) {
- case IOPOL_CMD_SET:
- if (0 == kauth_cred_issuser(kauth_cred_get())) {
+ switch (cmd) {
+ case IOPOL_CMD_SET:
+ if (0 == kauth_cred_issuser(kauth_cred_get())) {
+ /* If it's a non-root process, it needs to have the entitlement to set the policy */
+ boolean_t entitled = FALSE;
+ entitled = IOTaskHasEntitlement(current_task(), "com.apple.private.iopol.case_sensitivity");
+ if (!entitled) {
error = EPERM;
goto out;
}
+ }
- switch (policy) {
- case IOPOL_VFS_HFS_CASE_SENSITIVITY_DEFAULT:
- OSBitAndAtomic16(~((uint32_t)P_VFS_IOPOLICY_FORCE_HFS_CASE_SENSITIVITY), &p->p_vfs_iopolicy);
- break;
- case IOPOL_VFS_HFS_CASE_SENSITIVITY_FORCE_CASE_SENSITIVE:
- OSBitOrAtomic16((uint32_t)P_VFS_IOPOLICY_FORCE_HFS_CASE_SENSITIVITY, &p->p_vfs_iopolicy);
- break;
- default:
- error = EINVAL;
- goto out;
- }
-
+ switch (policy) {
+ case IOPOL_VFS_HFS_CASE_SENSITIVITY_DEFAULT:
+ OSBitAndAtomic16(~((uint32_t)P_VFS_IOPOLICY_FORCE_HFS_CASE_SENSITIVITY), &p->p_vfs_iopolicy);
break;
- case IOPOL_CMD_GET:
- iop_param->iop_policy = (p->p_vfs_iopolicy & P_VFS_IOPOLICY_FORCE_HFS_CASE_SENSITIVITY)
- ? IOPOL_VFS_HFS_CASE_SENSITIVITY_FORCE_CASE_SENSITIVE
- : IOPOL_VFS_HFS_CASE_SENSITIVITY_DEFAULT;
+ case IOPOL_VFS_HFS_CASE_SENSITIVITY_FORCE_CASE_SENSITIVE:
+ OSBitOrAtomic16((uint32_t)P_VFS_IOPOLICY_FORCE_HFS_CASE_SENSITIVITY, &p->p_vfs_iopolicy);
break;
default:
- error = EINVAL; /* unknown command */
- break;
+ error = EINVAL;
+ goto out;
+ }
+
+ break;
+ case IOPOL_CMD_GET:
+ iop_param->iop_policy = (p->p_vfs_iopolicy & P_VFS_IOPOLICY_FORCE_HFS_CASE_SENSITIVITY)
+ ? IOPOL_VFS_HFS_CASE_SENSITIVITY_FORCE_CASE_SENSITIVE
+ : IOPOL_VFS_HFS_CASE_SENSITIVITY_DEFAULT;
+ break;
+ default:
+ error = EINVAL; /* unknown command */
+ break;
}
out:
- return (error);
+ return error;
+}
+
+static inline int
+get_thread_atime_policy(struct uthread *ut)
+{
+ return (ut->uu_flag & UT_ATIME_UPDATE) ? IOPOL_ATIME_UPDATES_OFF : IOPOL_ATIME_UPDATES_DEFAULT;
+}
+
+static inline void
+set_thread_atime_policy(struct uthread *ut, int policy)
+{
+ if (policy == IOPOL_ATIME_UPDATES_OFF) {
+ ut->uu_flag |= UT_ATIME_UPDATE;
+ } else {
+ ut->uu_flag &= ~UT_ATIME_UPDATE;
+ }
+}
+
+static inline void
+set_task_atime_policy(struct proc *p, int policy)
+{
+ if (policy == IOPOL_ATIME_UPDATES_OFF) {
+ OSBitOrAtomic16((uint16_t)P_VFS_IOPOLICY_ATIME_UPDATES, &p->p_vfs_iopolicy);
+ } else {
+ OSBitAndAtomic16(~((uint16_t)P_VFS_IOPOLICY_ATIME_UPDATES), &p->p_vfs_iopolicy);
+ }
}
-/* BSD call back function for task_policy */
-void proc_apply_task_networkbg(void * bsd_info, thread_t thread, int bg);
+static inline int
+get_task_atime_policy(struct proc *p)
+{
+ return (p->p_vfs_iopolicy & P_VFS_IOPOLICY_ATIME_UPDATES) ? IOPOL_ATIME_UPDATES_OFF : IOPOL_ATIME_UPDATES_DEFAULT;
+}
+
+static int
+iopolicysys_vfs_atime_updates(struct proc *p __unused, int cmd, int scope, int policy, struct _iopol_param_t *iop_param)
+{
+ int error = 0;
+ thread_t thread;
+
+ /* Validate scope */
+ switch (scope) {
+ case IOPOL_SCOPE_THREAD:
+ thread = current_thread();
+ break;
+ case IOPOL_SCOPE_PROCESS:
+ thread = THREAD_NULL;
+ break;
+ default:
+ error = EINVAL;
+ goto out;
+ }
+
+ /* Validate policy */
+ if (cmd == IOPOL_CMD_SET) {
+ switch (policy) {
+ case IOPOL_ATIME_UPDATES_DEFAULT:
+ case IOPOL_ATIME_UPDATES_OFF:
+ break;
+ default:
+ error = EINVAL;
+ goto out;
+ }
+ }
+
+ /* Perform command */
+ switch (cmd) {
+ case IOPOL_CMD_SET:
+ if (thread != THREAD_NULL) {
+ set_thread_atime_policy(get_bsdthread_info(thread), policy);
+ } else {
+ set_task_atime_policy(p, policy);
+ }
+ break;
+ case IOPOL_CMD_GET:
+ if (thread != THREAD_NULL) {
+ policy = get_thread_atime_policy(get_bsdthread_info(thread));
+ } else {
+ policy = get_task_atime_policy(p);
+ }
+ iop_param->iop_policy = policy;
+ break;
+ default:
+ error = EINVAL; /* unknown command */
+ break;
+ }
+out:
+ return error;
+}
+
+/* BSD call back function for task_policy networking changes */
void
-proc_apply_task_networkbg(void * bsd_info, thread_t thread, int bg)
+proc_apply_task_networkbg(void * bsd_info, thread_t thread)
{
- proc_t p = PROC_NULL;
- proc_t curp = (proc_t)bsd_info;
- pid_t pid;
- int prio = (bg ? PRIO_DARWIN_BG : 0);
+ assert(bsd_info != PROC_NULL);
+
+ pid_t pid = proc_pid((proc_t)bsd_info);
+
+ proc_t p = proc_find(pid);
- pid = curp->p_pid;
- p = proc_find(pid);
if (p != PROC_NULL) {
- do_background_socket(p, thread, prio);
+ assert(p == (proc_t)bsd_info);
+
+ do_background_socket(p, thread);
proc_rele(p);
}
}
void
-gather_rusage_info_v2(proc_t p, struct rusage_info_v2 *ru, int flavor)
+gather_rusage_info(proc_t p, rusage_info_current *ru, int flavor)
{
struct rusage_info_child *ri_child;
assert(p->p_stats != NULL);
- switch(flavor) {
+ memset(ru, 0, sizeof(*ru));
+ switch (flavor) {
+ case RUSAGE_INFO_V4:
+ ru->ri_logical_writes = get_task_logical_writes(p->task);
+ ru->ri_lifetime_max_phys_footprint = get_task_phys_footprint_lifetime_max(p->task);
+#if CONFIG_LEDGER_INTERVAL_MAX
+ ru->ri_interval_max_phys_footprint = get_task_phys_footprint_interval_max(p->task, FALSE);
+#endif
+ fill_task_monotonic_rusage(p->task, ru);
+ /* fall through */
+
+ case RUSAGE_INFO_V3:
+ fill_task_qos_rusage(p->task, ru);
+ fill_task_billed_usage(p->task, ru);
+ /* fall through */
+
case RUSAGE_INFO_V2:
- ru->ri_diskio_bytesread = p->p_stats->ri_diskiobytes.ri_bytesread;
- ru->ri_diskio_byteswritten = p->p_stats->ri_diskiobytes.ri_byteswritten;
- /* fall through */
+ fill_task_io_rusage(p->task, ru);
+ /* fall through */
case RUSAGE_INFO_V1:
/*
* p->p_stats->ri_child statistics are protected under proc lock.
*/
proc_lock(p);
-
+
ri_child = &(p->p_stats->ri_child);
ru->ri_child_user_time = ri_child->ri_child_user_time;
ru->ri_child_system_time = ri_child->ri_child_system_time;
ru->ri_child_elapsed_abstime = ri_child->ri_child_elapsed_abstime;
proc_unlock(p);
- /* fall through */
+ /* fall through */
case RUSAGE_INFO_V0:
- proc_getexecutableuuid(p, (unsigned char *)&ru->ri_uuid, sizeof (ru->ri_uuid));
- fill_task_rusage_v2(p->task, ru);
+ proc_getexecutableuuid(p, (unsigned char *)&ru->ri_uuid, sizeof(ru->ri_uuid));
+ fill_task_rusage(p->task, ru);
ru->ri_proc_start_abstime = p->p_stats->ps_start;
}
}
-/*
- * Temporary function to copy value from rusage_info_v2 to rusage_info_v0.
- */
-static void
-rusage_info_v2_to_v0(struct rusage_info_v0 *ri_v0, struct rusage_info_v2 *ri_v2)
-{
- memcpy(&ri_v0->ri_uuid[0], &ri_v2->ri_uuid[0], sizeof(ri_v0->ri_uuid));
- ri_v0->ri_user_time = ri_v2->ri_user_time;
- ri_v0->ri_system_time = ri_v2->ri_system_time;
- ri_v0->ri_pkg_idle_wkups = ri_v2->ri_pkg_idle_wkups;
- ri_v0->ri_interrupt_wkups = ri_v2->ri_interrupt_wkups;
- ri_v0->ri_pageins = ri_v2->ri_pageins;
- ri_v0->ri_wired_size = ri_v2->ri_wired_size;
- ri_v0->ri_resident_size = ri_v2->ri_resident_size;
- ri_v0->ri_phys_footprint = ri_v2->ri_phys_footprint;
- ri_v0->ri_proc_start_abstime = ri_v2->ri_proc_start_abstime;
- ri_v0->ri_proc_exit_abstime = ri_v2->ri_proc_exit_abstime;
-}
-
-static void
-rusage_info_v2_to_v1(struct rusage_info_v1 *ri_v1, struct rusage_info_v2 *ri_v2)
-{
- memcpy(&ri_v1->ri_uuid[0], &ri_v2->ri_uuid[0], sizeof(ri_v1->ri_uuid));
- ri_v1->ri_user_time = ri_v2->ri_user_time;
- ri_v1->ri_system_time = ri_v2->ri_system_time;
- ri_v1->ri_pkg_idle_wkups = ri_v2->ri_pkg_idle_wkups;
- ri_v1->ri_interrupt_wkups = ri_v2->ri_interrupt_wkups;
- ri_v1->ri_pageins = ri_v2->ri_pageins;
- ri_v1->ri_wired_size = ri_v2->ri_wired_size;
- ri_v1->ri_resident_size = ri_v2->ri_resident_size;
- ri_v1->ri_phys_footprint = ri_v2->ri_phys_footprint;
- ri_v1->ri_proc_start_abstime = ri_v2->ri_proc_start_abstime;
- ri_v1->ri_proc_exit_abstime = ri_v2->ri_proc_exit_abstime;
- ri_v1->ri_child_user_time = ri_v2->ri_child_user_time;
- ri_v1->ri_child_system_time = ri_v2->ri_child_system_time;
- ri_v1->ri_child_pkg_idle_wkups = ri_v2->ri_child_pkg_idle_wkups;
- ri_v1->ri_child_interrupt_wkups = ri_v2->ri_child_interrupt_wkups;
- ri_v1->ri_child_pageins = ri_v2->ri_child_pageins;
- ri_v1->ri_child_elapsed_abstime = ri_v2->ri_child_elapsed_abstime;
-}
-
int
proc_get_rusage(proc_t p, int flavor, user_addr_t buffer, __unused int is_zombie)
{
- struct rusage_info_v0 ri_v0;
- struct rusage_info_v1 ri_v1;
- struct rusage_info_v2 ri_v2;
+ rusage_info_current ri_current = {};
int error = 0;
+ size_t size = 0;
switch (flavor) {
case RUSAGE_INFO_V0:
- /*
- * If task is still alive, collect info from the live task itself.
- * Otherwise, look to the cached info in the zombie proc.
- */
- if (p->p_ru == NULL) {
- gather_rusage_info_v2(p, &ri_v2, flavor);
- ri_v2.ri_proc_exit_abstime = 0;
- rusage_info_v2_to_v0(&ri_v0, &ri_v2);
- } else {
- rusage_info_v2_to_v0(&ri_v0, &p->p_ru->ri);
- }
- error = copyout(&ri_v0, buffer, sizeof (ri_v0));
+ size = sizeof(struct rusage_info_v0);
break;
case RUSAGE_INFO_V1:
- /*
- * If task is still alive, collect info from the live task itself.
- * Otherwise, look to the cached info in the zombie proc.
- */
- if (p->p_ru == NULL) {
- gather_rusage_info_v2(p, &ri_v2, flavor);
- ri_v2.ri_proc_exit_abstime = 0;
- rusage_info_v2_to_v1(&ri_v1, &ri_v2);
- } else {
- rusage_info_v2_to_v1(&ri_v1, &p->p_ru->ri);
- }
- error = copyout(&ri_v1, buffer, sizeof (ri_v1));
+ size = sizeof(struct rusage_info_v1);
break;
case RUSAGE_INFO_V2:
- /*
- * If task is still alive, collect info from the live task itself.
- * Otherwise, look to the cached info in the zombie proc.
- */
- if (p->p_ru == NULL) {
- gather_rusage_info_v2(p, &ri_v2, flavor);
- ri_v2.ri_proc_exit_abstime = 0;
- } else {
- ri_v2 = p->p_ru->ri;
- }
- error = copyout(&ri_v2, buffer, sizeof (ri_v2));
+ size = sizeof(struct rusage_info_v2);
break;
- default:
- error = EINVAL;
+ case RUSAGE_INFO_V3:
+ size = sizeof(struct rusage_info_v3);
break;
+
+ case RUSAGE_INFO_V4:
+ size = sizeof(struct rusage_info_v4);
+ break;
+
+ default:
+ return EINVAL;
}
- return (error);
+ if (size == 0) {
+ return EINVAL;
+ }
+
+ /*
+ * If task is still alive, collect info from the live task itself.
+ * Otherwise, look to the cached info in the zombie proc.
+ */
+ if (p->p_ru == NULL) {
+ gather_rusage_info(p, &ri_current, flavor);
+ ri_current.ri_proc_exit_abstime = 0;
+ error = copyout(&ri_current, buffer, size);
+ } else {
+ ri_current = p->p_ru->ri;
+ error = copyout(&p->p_ru->ri, buffer, size);
+ }
+
+ return error;
}
static int
* uap->flavor available flavors:
*
* RLIMIT_WAKEUPS_MONITOR
+ * RLIMIT_CPU_USAGE_MONITOR
+ * RLIMIT_THREAD_CPULIMITS
+ * RLIMIT_FOOTPRINT_INTERVAL
*/
int
-proc_rlimit_control(__unused struct proc *p, struct proc_rlimit_control_args *uap, int32_t *retval)
+proc_rlimit_control(__unused struct proc *p, struct proc_rlimit_control_args *uap, __unused int32_t *retval)
{
- proc_t targetp;
- int error = 0;
- struct proc_rlimit_control_wakeupmon wakeupmon_args;
+ proc_t targetp;
+ int error = 0;
+ struct proc_rlimit_control_wakeupmon wakeupmon_args;
uint32_t cpumon_flags;
+ uint32_t cpulimits_flags;
kauth_cred_t my_cred, target_cred;
+#if CONFIG_LEDGER_INTERVAL_MAX
+ uint32_t footprint_interval_flags;
+ uint64_t interval_max_footprint;
+#endif /* CONFIG_LEDGER_INTERVAL_MAX */
+
+ /* -1 implicitly means our own process (perhaps even the current thread for per-thread attributes) */
+ if (uap->pid == -1) {
+ targetp = proc_self();
+ } else {
+ targetp = proc_find(uap->pid);
+ }
- *retval = 0;
-
- if ((targetp = proc_find(uap->pid)) == PROC_NULL) {
- *retval = -1;
- return (ESRCH);
+ /* proc_self() can return NULL for an exiting process */
+ if (targetp == PROC_NULL) {
+ return ESRCH;
}
my_cred = kauth_cred_get();
kauth_cred_getruid(my_cred) != kauth_cred_getuid(target_cred)) {
proc_rele(targetp);
kauth_cred_unref(&target_cred);
- *retval = -1;
- error = EACCES;
- return (error);
+ return EACCES;
}
switch (uap->flavor) {
case RLIMIT_WAKEUPS_MONITOR:
- if ((error = copyin(uap->arg, &wakeupmon_args, sizeof (wakeupmon_args))) != 0) {
+ if ((error = copyin(uap->arg, &wakeupmon_args, sizeof(wakeupmon_args))) != 0) {
break;
}
if ((error = mach_to_bsd_rv(task_wakeups_monitor_ctl(targetp->task, &wakeupmon_args.wm_flags,
- &wakeupmon_args.wm_rate))) != 0) {
+ &wakeupmon_args.wm_rate))) != 0) {
break;
}
- error = copyout(&wakeupmon_args, uap->arg, sizeof (wakeupmon_args));
+ error = copyout(&wakeupmon_args, uap->arg, sizeof(wakeupmon_args));
break;
case RLIMIT_CPU_USAGE_MONITOR:
cpumon_flags = uap->arg; // XXX temporarily stashing flags in argp (12592127)
error = mach_to_bsd_rv(task_cpu_usage_monitor_ctl(targetp->task, &cpumon_flags));
break;
+ case RLIMIT_THREAD_CPULIMITS:
+ cpulimits_flags = (uint32_t)uap->arg; // only need a limited set of bits, pass in void * argument
+
+ if (uap->pid != -1) {
+ error = EINVAL;
+ break;
+ }
+
+ uint8_t percent = 0;
+ uint32_t ms_refill = 0;
+ uint64_t ns_refill;
+
+ percent = (uint8_t)(cpulimits_flags & 0xffU); /* low 8 bits for percent */
+ ms_refill = (cpulimits_flags >> 8) & 0xffffff; /* next 24 bits represent ms refill value */
+ if (percent >= 100) {
+ error = EINVAL;
+ break;
+ }
+
+ ns_refill = ((uint64_t)ms_refill) * NSEC_PER_MSEC;
+
+ error = mach_to_bsd_rv(thread_set_cpulimit(THREAD_CPULIMIT_BLOCK, percent, ns_refill));
+ break;
+
+#if CONFIG_LEDGER_INTERVAL_MAX
+ case RLIMIT_FOOTPRINT_INTERVAL:
+ footprint_interval_flags = uap->arg; // XXX temporarily stashing flags in argp (12592127)
+ /*
+ * There is currently only one option for this flavor.
+ */
+ if ((footprint_interval_flags & FOOTPRINT_INTERVAL_RESET) == 0) {
+ error = EINVAL;
+ break;
+ }
+ interval_max_footprint = get_task_phys_footprint_interval_max(targetp->task, TRUE);
+ break;
+#endif /* CONFIG_LEDGER_INTERVAL_MAX */
default:
error = EINVAL;
break;
proc_rele(targetp);
kauth_cred_unref(&target_cred);
- if (error != 0) {
- *retval = -1;
- }
-
/*
* Return value from this function becomes errno to userland caller.
- * *retval is what the system call invocation returns.
*/
- return (error);
+ return error;
+}
+
+/*
+ * Return the current amount of CPU consumed by this thread (in either user or kernel mode)
+ */
+int
+thread_selfusage(struct proc *p __unused, struct thread_selfusage_args *uap __unused, uint64_t *retval)
+{
+ uint64_t runtime;
+
+ runtime = thread_get_runtime_self();
+ *retval = runtime;
+
+ return 0;
+}
+
+#if !MONOTONIC
+int
+thread_selfcounts(__unused struct proc *p, __unused struct thread_selfcounts_args *uap, __unused int *ret_out)
+{
+ return ENOTSUP;
}
+#endif /* !MONOTONIC */
projects / apple / xnu.git / blobdiff