/*
- * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
+ * Copyright (c) 2000-2009 Apple Inc. All rights reserved.
*
- * @APPLE_LICENSE_HEADER_START@
+ * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
*
- * The contents of this file constitute Original Code as defined in and
- * are subject to the Apple Public Source License Version 1.1 (the
- * "License"). You may not use this file except in compliance with the
- * License. Please obtain a copy of the License at
- * http://www.apple.com/publicsource and read it before using this file.
+ * 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
+ * compliance with the License. The rights granted to you under the License
+ * may not be used to create, or enable the creation or redistribution of,
+ * 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.
*
- * This Original Code and all software distributed under the License are
- * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
+ * 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,
* INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT. Please see the
- * License for the specific language governing rights and limitations
- * under the License.
+ * 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_LICENSE_HEADER_END@
+ * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
*/
/*
* @OSF_FREE_COPYRIGHT@
* improvements that they make and grant CSL redistribution rights.
*
*/
+/*
+ * NOTICE: This file was modified by McAfee Research in 2004 to introduce
+ * support for mandatory and extensible security protections. This notice
+ * is included in support of clause 2.2 (b) of the Apple Public License,
+ * Version 2.0.
+ * Copyright (c) 2005 SPARTA, Inc.
+ */
#ifndef _KERN_TASK_H_
#define _KERN_TASK_H_
#include <kern/kern_types.h>
#include <mach/mach_types.h>
-#include <vm/pmap.h>
+#include <sys/cdefs.h>
+
+#ifdef MACH_KERNEL_PRIVATE
-#ifdef MACH_KERNEL_PRIVATE
#include <mach/boolean.h>
#include <mach/port.h>
#include <mach/time_value.h>
#include <mach/mach_param.h>
#include <mach/task_info.h>
#include <mach/exception_types.h>
-#include <mach_prof.h>
#include <machine/task.h>
+
+#include <kern/cpu_data.h>
#include <kern/queue.h>
#include <kern/exception.h>
#include <kern/lock.h>
-#include <kern/syscall_emulation.h>
-#include <norma_task.h>
-#include <mach_host.h>
-#include <fast_tas.h>
-#include <task_swapper.h>
-#include <kern/thread_act.h>
-
-typedef struct task {
+#include <kern/thread.h>
+#include <security/_label.h>
+#include <ipc/ipc_labelh.h>
+
+struct task {
/* Synchronization/destruction information */
- decl_mutex_data(,lock) /* Task's lock */
- int ref_count; /* Number of references to me */
+ decl_lck_mtx_data(,lock) /* Task's lock */
+ uint32_t ref_count; /* Number of references to me */
boolean_t active; /* Task has not been terminated */
- boolean_t kernel_loaded; /* Created with kernel_task_create() */
+ boolean_t halting; /* Task is being halted */
/* Miscellaneous */
vm_map_t map; /* Address space description */
- queue_chain_t pset_tasks; /* list of tasks assigned to pset */
+ queue_chain_t tasks; /* global list of tasks */
void *user_data; /* Arbitrary data settable via IPC */
- int suspend_count; /* Internal scheduling only */
-
-#if TASK_SWAPPER
- /* Task swapper data */
- unsigned short swap_state; /* swap state (e.g. IN/OUT) */
- unsigned short swap_flags; /* swap flags (e.g. MAKE_UNSWAPP) */
- unsigned int swap_stamp; /* when last swapped */
- unsigned long swap_rss; /* size (pages) when last swapped */
- int swap_ast_waiting; /* number of threads that have not */
- /* reached a clean point and halted */
- int swap_nswap; /* number of times this task swapped */
- queue_chain_t swapped_tasks; /* list of non-resident tasks */
-#endif /* TASK_SWAPPER */
-
- /* Activations in this task */
- queue_head_t thr_acts; /* list of thread_activations */
- int thr_act_count;
- int res_act_count;
- int active_act_count; /* have not terminate_self yet */
-
- processor_set_t processor_set; /* processor set for new threads */
-#if MACH_HOST
- boolean_t may_assign; /* can assigned pset be changed? */
- boolean_t assign_active; /* waiting for may_assign */
-#endif /* MACH_HOST */
+
+ /* Threads in this task */
+ queue_head_t threads;
+
+ processor_set_t pset_hint;
+ struct affinity_space *affinity_space;
+
+ int thread_count;
+ uint32_t active_thread_count;
+ int suspend_count; /* Internal scheduling only */
/* User-visible scheduling information */
integer_t user_stop_count; /* outstanding stops */
- integer_t importance; /* system-wide importance */
-
- integer_t priority; /* base priority */
- integer_t max_priority; /* maximum priority */
+ task_role_t role;
- integer_t policy; /* obsolete */
+ integer_t priority; /* base priority for threads */
+ integer_t max_priority; /* maximum priority for threads */
- /* Task security token */
+ /* Task security and audit tokens */
security_token_t sec_token;
+ audit_token_t audit_token;
/* Statistics */
- time_value_t total_user_time; /* user time for dead threads */
- time_value_t total_system_time; /* system time for dead threads */
+ uint64_t total_user_time; /* terminated threads only */
+ uint64_t total_system_time;
-#if MACH_PROF
- boolean_t task_profiled; /* is task being profiled ? */
- struct prof_data *profil_buffer;/* profile struct if so */
-#endif /* MACH_PROF */
+ /* Virtual timers */
+ uint32_t vtimers;
/* IPC structures */
- decl_mutex_data(,itk_lock_data)
+ decl_lck_mtx_data(,itk_lock_data)
struct ipc_port *itk_self; /* not a right, doesn't hold ref */
+ struct ipc_port *itk_nself; /* not a right, doesn't hold ref */
struct ipc_port *itk_sself; /* a send right */
struct exception_action exc_actions[EXC_TYPES_COUNT];
/* a send right each valid element */
struct ipc_port *itk_host; /* a send right */
struct ipc_port *itk_bootstrap; /* a send right */
+ struct ipc_port *itk_seatbelt; /* a send right */
+ struct ipc_port *itk_gssd; /* yet another send right */
+ struct ipc_port *itk_task_access; /* and another send right */
struct ipc_port *itk_registered[TASK_PORT_REGISTER_MAX];
/* all send rights */
struct ipc_space *itk_space;
- /* RPC subsystem information */
- queue_head_t subsystem_list; /* list of subsystems */
- int subsystem_count;/* number of subsystems */
-
/* Synchronizer ownership information */
queue_head_t semaphore_list; /* list of owned semaphores */
queue_head_t lock_set_list; /* list of owned lock sets */
int semaphores_owned; /* number of semaphores owned */
int lock_sets_owned; /* number of lock sets owned */
- /* User space system call emulation support */
- struct eml_dispatch *eml_dispatch;
-
- /* Ledgers */
+ /* Ledgers */
struct ipc_port *wired_ledger_port;
struct ipc_port *paged_ledger_port;
-
-#if NORMA_TASK
- long child_node; /* if != -1, node for new children */
-#endif /* NORMA_TASK */
-#if FAST_TAS
- vm_offset_t fast_tas_base;
- vm_offset_t fast_tas_end;
-#endif /* FAST_TAS */
+ unsigned int priv_flags; /* privilege resource flags */
+#define VM_BACKING_STORE_PRIV 0x1
+
MACHINE_TASK
+
integer_t faults; /* faults counter */
integer_t pageins; /* pageins counter */
integer_t cow_faults; /* copy on write fault counter */
integer_t messages_received; /* messages received counter */
integer_t syscalls_mach; /* mach system call counter */
integer_t syscalls_unix; /* unix system call counter */
- integer_t csw; /* context switch counter */
+ uint32_t c_switch; /* total context switches */
+ uint32_t p_switch; /* total processor switches */
+ uint32_t ps_switch; /* total pset switches */
#ifdef MACH_BSD
void *bsd_info;
#endif
- vm_offset_t system_shared_region;
-} Task;
+ struct vm_shared_region *shared_region;
+ uint32_t taskFeatures[2]; /* Special feature for this task */
+#define tf64BitAddr 0x80000000 /* Task has 64-bit addressing */
+#define tf64BitData 0x40000000 /* Task has 64-bit data registers */
+#define task_has_64BitAddr(task) \
+ (((task)->taskFeatures[0] & tf64BitAddr) != 0)
+#define task_set_64BitAddr(task) \
+ ((task)->taskFeatures[0] |= tf64BitAddr)
+#define task_clear_64BitAddr(task) \
+ ((task)->taskFeatures[0] &= ~tf64BitAddr)
+
+ mach_vm_address_t all_image_info_addr; /* dyld __all_image_info */
+ mach_vm_size_t all_image_info_size; /* section location and size */
+#if CONFIG_MACF_MACH
+ ipc_labelh_t label;
+#endif
+
+#if CONFIG_COUNTERS
+#define TASK_PMC_FLAG 0x1 /* Bit in "t_chud" signifying PMC interest */
+ uint32_t t_chud; /* CHUD flags, used for Shark */
+#endif
+
+};
+
+#define task_lock(task) lck_mtx_lock(&(task)->lock)
+#define task_lock_try(task) lck_mtx_try_lock(&(task)->lock)
+#define task_unlock(task) lck_mtx_unlock(&(task)->lock)
+
+#if CONFIG_MACF_MACH
+#define maclabel label->lh_label
+
+#define tasklabel_lock(task) lh_lock((task)->label)
+#define tasklabel_unlock(task) lh_unlock((task)->label)
+
+extern void tasklabel_lock2(task_t a, task_t b);
+extern void tasklabel_unlock2(task_t a, task_t b);
+#endif /* MAC_MACH */
+
+#define itk_lock_init(task) lck_mtx_init(&(task)->itk_lock_data, &ipc_lck_grp, &ipc_lck_attr)
+#define itk_lock_destroy(task) lck_mtx_destroy(&(task)->itk_lock_data, &ipc_lck_grp)
+#define itk_lock(task) lck_mtx_lock(&(task)->itk_lock_data)
+#define itk_unlock(task) lck_mtx_unlock(&(task)->itk_lock_data)
+
+#define task_reference_internal(task) \
+ (void)hw_atomic_add(&(task)->ref_count, 1)
+
+#define task_deallocate_internal(task) \
+ hw_atomic_sub(&(task)->ref_count, 1)
+
+#define task_reference(task) \
+MACRO_BEGIN \
+ if ((task) != TASK_NULL) \
+ task_reference_internal(task); \
+MACRO_END
+
+extern kern_return_t kernel_task_create(
+ task_t task,
+ vm_offset_t map_base,
+ vm_size_t map_size,
+ task_t *child);
+/* Initialize task module */
+extern void task_init(void) __attribute__((section("__TEXT, initcode")));
-#define task_lock(task) mutex_lock(&(task)->lock)
-#define task_lock_try(task) mutex_try(&(task)->lock)
-#define task_unlock(task) mutex_unlock(&(task)->lock)
+#define current_task_fast() (current_thread()->task)
+#define current_task() current_task_fast()
-#define itk_lock_init(task) mutex_init(&(task)->itk_lock_data, \
- ETAP_THREAD_TASK_ITK)
-#define itk_lock(task) mutex_lock(&(task)->itk_lock_data)
-#define itk_unlock(task) mutex_unlock(&(task)->itk_lock_data)
+extern lck_attr_t task_lck_attr;
+extern lck_grp_t task_lck_grp;
-/*
- * Internal only routines
- */
+#else /* MACH_KERNEL_PRIVATE */
-/* Initialize task module */
-extern void task_init(void);
+__BEGIN_DECLS
-/* task create */
-extern kern_return_t task_create_local(
- task_t parent_task,
- boolean_t inherit_memory,
- boolean_t kernel_loaded,
- task_t *child_task); /* OUT */
+extern task_t current_task(void);
-#if MACH_HOST
-/* Freeze and unfreeze task from being reassigned processor sets */
-extern void task_freeze(
- task_t task);
+extern void task_reference(task_t task);
-extern void task_unfreeze(
- task_t task);
-#endif /* MACH_HOST */
+__END_DECLS
-extern void consider_task_collect(void);
+#endif /* MACH_KERNEL_PRIVATE */
-#define current_task_fast() (current_act_fast()->task)
-#define current_task() current_task_fast()
+__BEGIN_DECLS
-#else /* !MACH_KERNEL_PRIVATE */
+#ifdef XNU_KERNEL_PRIVATE
-extern task_t current_task(void);
+/* Hold all threads in a task */
+extern kern_return_t task_hold(
+ task_t task);
-#endif /* !MACH_KERNEL_PRIVATE */
+/* Release hold on all threads in a task */
+extern kern_return_t task_release(
+ task_t task);
-extern task_t kernel_task;
-extern boolean_t is_kerneltask(task_t);
+/* Halt all other threads in the current task */
+extern kern_return_t task_start_halt(
+ task_t task);
-/* Temporarily hold all threads in a task */
-extern kern_return_t task_hold(
- task_t task);
+/* Wait for other threads to halt and free halting task resources */
+extern void task_complete_halt(
+ task_t task);
-/* Release temporary hold on all threads in a task */
-extern kern_return_t task_release(
- task_t task);
+extern kern_return_t task_terminate_internal(
+ task_t task);
-/* Get a task prepared for major changes */
-extern kern_return_t task_halt(
- task_t task);
+extern kern_return_t task_create_internal(
+ task_t parent_task,
+ boolean_t inherit_memory,
+ boolean_t is_64bit,
+ task_t *child_task); /* OUT */
-/* Take reference on task (make sure it doesn't go away) */
-extern void task_reference(task_t task);
+extern kern_return_t task_importance(
+ task_t task,
+ integer_t importance);
+
+extern void task_vtimer_set(
+ task_t task,
+ integer_t which);
+
+extern void task_vtimer_clear(
+ task_t task,
+ integer_t which);
+
+extern void task_vtimer_update(
+ task_t task,
+ integer_t which,
+ uint32_t *microsecs);
+
+#define TASK_VTIMER_USER 0x01
+#define TASK_VTIMER_PROF 0x02
+#define TASK_VTIMER_RLIM 0x04
+
+extern void task_set_64bit(
+ task_t task,
+ boolean_t is64bit);
+
+extern void task_backing_store_privileged(
+ task_t task);
-/* Try to take a reference on task, return false if it would block */
-extern boolean_t task_reference_try(task_t task);
+extern void task_set_dyld_info(
+ task_t task,
+ mach_vm_address_t addr,
+ mach_vm_size_t size);
-/* Remove reference to task */
-extern void task_deallocate(task_t task);
+/* Get number of activations in a task */
+extern int get_task_numacts(
+ task_t task);
+
+extern int get_task_numactivethreads(task_t task);
/* JMM - should just be temporary (implementation in bsd_kern still) */
-extern void *get_bsdtask_info(task_t);
extern void set_bsdtask_info(task_t,void *);
-extern vm_map_t get_task_map(task_t);
-extern vm_map_t swap_task_map(task_t, vm_map_t);
+extern vm_map_t get_task_map_reference(task_t);
+extern vm_map_t swap_task_map(task_t, thread_t, vm_map_t);
extern pmap_t get_task_pmap(task_t);
+extern uint64_t get_task_resident_size(task_t);
+
+extern boolean_t is_kerneltask(task_t task);
+
+extern kern_return_t check_actforsig(task_t task, thread_t thread, int setast);
+
+extern kern_return_t machine_task_get_state(
+ task_t task,
+ int flavor,
+ thread_state_t state,
+ mach_msg_type_number_t *state_count);
+
+extern kern_return_t machine_task_set_state(
+ task_t task,
+ int flavor,
+ thread_state_t state,
+ mach_msg_type_number_t state_count);
+
+
+#endif /* XNU_KERNEL_PRIVATE */
+
+#ifdef KERNEL_PRIVATE
+
+extern void *get_bsdtask_info(task_t);
+extern void *get_bsdthreadtask_info(thread_t);
+extern vm_map_t get_task_map(task_t);
+
+#endif /* KERNEL_PRIVATE */
+
+extern task_t kernel_task;
+
+extern void task_deallocate(
+ task_t task);
+
+extern void task_name_deallocate(
+ task_name_t task_name);
+__END_DECLS
+
#endif /* _KERN_TASK_H_ */
projects / apple / xnu.git / blobdiff