X-Git-Url: https://git.saurik.com/apple/xnu.git/blobdiff_plain/4452a7af2eac33dbad800bcc91f2399d62c18f53..316670eb35587141e969394ae8537d66b9211e80:/osfmk/kern/task.h diff --git a/osfmk/kern/task.h b/osfmk/kern/task.h index 5b986d897..7d2c981ce 100644 --- a/osfmk/kern/task.h +++ b/osfmk/kern/task.h @@ -1,5 +1,5 @@ /* - * Copyright (c) 2000-2005 Apple Computer, Inc. All rights reserved. + * Copyright (c) 2000-2010 Apple Inc. All rights reserved. * * @APPLE_OSREFERENCE_LICENSE_HEADER_START@ * @@ -80,6 +80,13 @@ * 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_ @@ -97,39 +104,154 @@ #include #include #include +#include #include #include #include #include #include +#include +#include +#endif /* MACH_KERNEL_PRIVATE */ + +#ifdef XNU_KERNEL_PRIVATE + +/* defns for task->rsu_controldata */ +#define TASK_POLICY_CPU_RESOURCE_USAGE 0 +#define TASK_POLICY_WIREDMEM_RESOURCE_USAGE 1 +#define TASK_POLICY_VIRTUALMEM_RESOURCE_USAGE 2 +#define TASK_POLICY_DISK_RESOURCE_USAGE 3 +#define TASK_POLICY_NETWORK_RESOURCE_USAGE 4 +#define TASK_POLICY_POWER_RESOURCE_USAGE 5 + +#define TASK_POLICY_RESOURCE_USAGE_COUNT 6 + +/* + * Process Action and Policy bit definitions + +The bit defns of the policy states +64 60 56 52 48 44 40 36 32 28 24 20 16 12 8 0 +|----|-----|----|----|----|----|----|----|----|----|----|----|----|----|--------| +|RFU | RFU | PWR| NET| DSK| CPU| VM | WM | LVM| RFU| CPU| NET| GPU| DSK| BGRND | +|----|-----|----|----|----|----|----|----|----|----|----|----|----|----|--------| +|<----------- RESOURCE USAGE -------->|< LOWSRC>|<-HARDWARE ACCESS->|BackGrnd| +|----|-----|----|----|----|----|----|----|----|----|----|----|----|----|--------| + +* +*/ + +#define TASK_POLICY_BACKGROUND_ATTRIBUTE_NONE 0x00 +#define TASK_POLICY_BACKGROUND_ATTRIBUTE_LOWPRI 0x01 +#define TASK_POLICY_BACKGROUND_ATTRIBUTE_DISKTHROTTLE 0x02 +#define TASK_POLICY_BACKGROUND_ATTRIBUTE_NETTHROTTLE 0x04 +#define TASK_POLICY_BACKGROUND_ATTRIBUTE_NOGPU 0x08 +#if CONFIG_EMBEDDED +#define TASK_POLICY_BACKGROUND_ATTRIBUTE_ALL 0x0F +#else /* CONFIG_EMBEDDED */ +#define TASK_POLICY_BACKGROUND_ATTRIBUTE_ALL 0x07 +#endif /* CONFIG_EMBEDDED */ +#define TASK_POLICY_BACKGROUND_ATTRIBUTE_DEFAULT TASK_POLICY_BACKGROUND_ATTRIBUTE_ALL + +/* Hardware disk access attributes, bit different as it should reflect IOPOL_XXX */ +#define TASK_POLICY_HWACCESS_DISK_ATTRIBUTE_NONE 0x00 +#define TASK_POLICY_HWACCESS_DISK_ATTRIBUTE_FULLACCESS 0x01 +#define TASK_POLICY_HWACCESS_DISK_ATTRIBUTE_NORMAL 0x01 +#define TASK_POLICY_HWACCESS_DISK_ATTRIBUTE_PASSIVE 0x02 +#define TASK_POLICY_HWACCESS_DISK_ATTRIBUTE_THROTTLE 0x03 +#define TASK_POLICY_HWACCESS_DISK_ATTRIBUTE_UTILITY 0x04 +#define TASK_POLICY_HWACCESS_DISK_ATTRIBUTE_DEFAULT TASK_POLICY_HWACCESS_DISK_ATTRIBUTE_FULLACCESS + +/* Hardware GPU access attributes */ +#define TASK_POLICY_HWACCESS_GPU_ATTRIBUTE_NONE 0x00 +#define TASK_POLICY_HWACCESS_GPU_ATTRIBUTE_FULLACCESS 0x00 +#define TASK_POLICY_HWACCESS_GPU_ATTRIBUTE_NOACCESS 0x01 +#define TASK_POLICY_HWACCESS_GPU_ATTRIBUTE_DEFAULT TASK_POLICY_HWACCESS_GPU_ATTRIBUTE_FULLACCESS + +/* Hardware Network access attributes */ +#define TASK_POLICY_HWACCESS_NET_ATTRIBUTE_NONE 0x00 +#define TASK_POLICY_HWACCESS_NET_ATTRIBUTE_FULLACCESS 0x00 +#define TASK_POLICY_HWACCESS_NET_ATTRIBUTE_THROTTLE 0x01 +#define TASK_POLICY_HWACCESS_NET_ATTRIBUTE_DEFAULT TASK_POLICY_HWACCESS_NET_ATTRIBUTE_FULLACCESS + +/* Hardware CPU access attributes */ +#define TASK_POLICY_HWACCESS_CPU_ATTRIBUTE_NONE 0x00 +#define TASK_POLICY_HWACCESS_CPU_ATTRIBUTE_FULLACCESS 0x00 +#define TASK_POLICY_HWACCESS_CPU_ATTRIBUTE_ONE 0x01 +#define TASK_POLICY_HWACCESS_CPU_ATTRIBUTE_LLCACHE 0x02 +#define TASK_POLICY_HWACCESS_CPU_ATTRIBUTE_DEFAULT TASK_POLICY_HWACCESS_CPU_ATTRIBUTE_FULLACCESS + +/* Resource usage/low resource attributes */ +#define TASK_POLICY_RESOURCE_ATTRIBUTE_NONE 0x00 +#define TASK_POLICY_RESOURCE_ATTRIBUTE_THROTTLE 0x01 +#define TASK_POLICY_RESOURCE_ATTRIBUTE_SUSPEND 0x02 +#define TASK_POLICY_RESOURCE_ATTRIBUTE_TERMINATE 0x03 +#define TASK_POLICY_RESOURCE_ATTRIBUTE_NOTIFY_KQ 0x04 +#define TASK_POLICY_RESOURCE_ATTRIBUTE_NOTIFY_EXC 0x05 +#define TASK_POLICY_RESOURCE_ATTRIBUTE_DEFAULT TASK_POLICY_RESOURCE_ATTRIBUTE_NONE + +#endif /* XNU_KERNEL_PRIVATE */ + +#ifdef MACH_KERNEL_PRIVATE + +typedef struct process_policy { + uint64_t apptype:4, + rfu1:4, + ru_power:4, /* Resource Usage Power */ + ru_net:4, /* Resource Usage Network */ + ru_disk:4, /* Resource Usage Disk */ + ru_cpu:4, /* Resource Usage CPU */ + ru_virtmem:4, /* Resource Usage VM */ + ru_wiredmem:4,/* Resource Usage Wired Memory */ + low_vm:4, /* Low Virtual Memory */ + rfu2:4, + hw_cpu:4, /* HW Access to CPU */ + hw_net:4, /* HW Access to Network */ + hw_gpu:4, /* HW Access to GPU */ + hw_disk:4, /* HW Access to Disk */ + hw_bg:8; /* Darwin Background Policy */ +} process_policy_t; + +#if CONFIG_EMBEDDED + +typedef struct task_watcher { + queue_chain_t tw_links; /* queueing of threads */ + task_t tw_task; /* task that is being watched */ + thread_t tw_thread; /* thread that is watching the watch_task */ + int tw_state; /* the current app state of the thread */ + int tw_importance; /* importance prior to backgrounding */ +} task_watch_t; + +extern lck_mtx_t task_watch_mtx; + +#endif /* CONFIG_EMBEDDED */ + #include -#include -#include +extern process_policy_t default_task_proc_policy; /* init value for the process policy attributes */ +extern process_policy_t default_task_null_policy; /* none as the value for the process policy attributes */ 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 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 */ /* Threads in this task */ - queue_head_t threads; - int thread_count; - int active_thread_count; + queue_head_t threads; + + processor_set_t pset_hint; + struct affinity_space *affinity_space; - 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 */ + 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 */ @@ -147,13 +269,11 @@ struct task { 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 */ @@ -161,6 +281,9 @@ struct task { /* 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 */ @@ -172,9 +295,8 @@ struct task { int semaphores_owned; /* number of semaphores owned */ int lock_sets_owned; /* number of lock sets owned */ - /* Ledgers */ - struct ipc_port *wired_ledger_port; - struct ipc_port *paged_ledger_port; + ledger_t ledger; + unsigned int priv_flags; /* privilege resource flags */ #define VM_BACKING_STORE_PRIV 0x1 @@ -187,12 +309,16 @@ struct task { 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 */ + + zinfo_usage_t tkm_zinfo; /* per-task, per-zone usage statistics */ + #ifdef MACH_BSD void *bsd_info; #endif - struct shared_region_mapping *system_shared_region; - struct tws_hash *dynamic_working_set; + 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 */ @@ -203,18 +329,62 @@ struct task { #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 + + boolean_t pidsuspended; /* pid_suspend called; no threads can execute */ + boolean_t frozen; /* frozen; private resident pages committed to swap */ + process_policy_t ext_appliedstate; /* externally applied actions */ + process_policy_t ext_policystate; /* externally defined process policy states*/ + process_policy_t appliedstate; /* self applied acions */ + process_policy_t policystate; /* process wide policy states */ + uint8_t rusage_cpu_flags; + uint8_t rusage_cpu_percentage; /* Task-wide CPU limit percentage */ + uint64_t rusage_cpu_interval; /* Task-wide CPU limit interval */ + uint8_t rusage_cpu_perthr_percentage; /* Per-thread CPU limit percentage */ + uint64_t rusage_cpu_perthr_interval; /* Per-thread CPU limit interval */ + uint64_t rusage_cpu_deadline; + thread_call_t rusage_cpu_callt; +#if CONFIG_EMBEDDED + uint32_t appstate; /* the current appstate */ + queue_head_t task_watchers; /* app state watcher threads */ + int num_taskwatchers; + int watchapplying; +#endif /* CONFIG_EMBEDDED */ + + vm_extmod_statistics_data_t extmod_statistics; + natural_t proc_terminate; /* the process is marked for proc_terminate */ }; -#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 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) -#define itk_lock_init(task) mutex_init(&(task)->itk_lock_data, 0) -#define itk_lock(task) mutex_lock(&(task)->itk_lock_data) -#define itk_unlock(task) mutex_unlock(&(task)->itk_lock_data) +#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) \ - hw_atomic_add(&(task)->ref_count, 1) + (void)hw_atomic_add(&(task)->ref_count, 1) #define task_deallocate_internal(task) \ hw_atomic_sub(&(task)->ref_count, 1) @@ -232,11 +402,14 @@ extern kern_return_t kernel_task_create( task_t *child); /* Initialize task module */ -extern void task_init(void); +extern void task_init(void) __attribute__((section("__TEXT, initcode"))); #define current_task_fast() (current_thread()->task) #define current_task() current_task_fast() +extern lck_attr_t task_lck_attr; +extern lck_grp_t task_lck_grp; + #else /* MACH_KERNEL_PRIVATE */ __BEGIN_DECLS @@ -257,12 +430,50 @@ __BEGIN_DECLS extern kern_return_t task_hold( task_t task); +/* Wait for task to stop running, either just to get off CPU or to cease being runnable */ +extern kern_return_t task_wait( + task_t task, + boolean_t until_not_runnable); + /* Release hold on all threads in a task */ extern kern_return_t task_release( task_t task); +/* Suspends a task by placing a hold on its threads */ +extern kern_return_t task_pidsuspend( + task_t task); +extern kern_return_t task_pidsuspend_locked( + task_t task); + +/* Resumes a previously paused task */ +extern kern_return_t task_pidresume( + task_t task); + +#if CONFIG_FREEZE + +/* Freeze a task's resident pages */ +extern kern_return_t task_freeze( + task_t task, + uint32_t *purgeable_count, + uint32_t *wired_count, + uint32_t *clean_count, + uint32_t *dirty_count, + uint32_t dirty_budget, + boolean_t *shared, + boolean_t walk_only); + +/* Thaw a currently frozen task */ +extern kern_return_t task_thaw( + task_t task); + +#endif /* CONFIG_FREEZE */ + /* Halt all other threads in the current task */ -extern kern_return_t task_halt( +extern kern_return_t task_start_halt( + task_t task); + +/* Wait for other threads to halt and free halting task resources */ +extern void task_complete_halt( task_t task); extern kern_return_t task_terminate_internal( @@ -278,6 +489,23 @@ 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); @@ -285,29 +513,164 @@ extern void task_set_64bit( extern void task_backing_store_privileged( task_t task); -extern void task_working_set_disable( - task_t task); - +extern void task_set_dyld_info( + task_t task, + mach_vm_address_t addr, + mach_vm_size_t size); /* 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 set_bsdtask_info(task_t,void *); extern vm_map_t get_task_map_reference(task_t); -extern vm_map_t swap_task_map(task_t, vm_map_t); +extern vm_map_t swap_task_map(task_t, thread_t, vm_map_t, boolean_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); + +extern void machine_task_terminate(task_t task); + +struct _task_ledger_indices { + int cpu_time; + int tkm_private; + int tkm_shared; + int phys_mem; + int wired_mem; +}; +extern struct _task_ledger_indices task_ledgers; + +int proc_get_task_bg_policy(task_t task); +int proc_get_thread_bg_policy(task_t task, uint64_t tid); +int proc_get_self_isbackground(void); +int proc_get_selfthread_isbackground(void); + +int proc_get_darwinbgstate(task_t, uint32_t *); +int proc_set_bgtaskpolicy(task_t task, int intval); +int proc_set_and_apply_bgtaskpolicy(task_t task, int intval); +int proc_set_bgthreadpolicy(task_t task, uint64_t tid, int val); +int proc_set_and_apply_bgthreadpolicy(task_t task, uint64_t tid, int val); + +int proc_add_bgtaskpolicy(task_t task, int val); +int proc_add_bgthreadpolicy(task_t task, uint64_t tid, int val); +int proc_remove_bgtaskpolicy(task_t task, int policy); +int proc_remove_bgthreadpolicy(task_t task, uint64_t tid, int val); + +int proc_apply_bgtaskpolicy(task_t task); +int proc_apply_bgtaskpolicy_external(task_t task); +int proc_apply_bgthreadpolicy(task_t task, uint64_t tid); +int proc_apply_bgtask_selfpolicy(void); +int proc_apply_bgthread_selfpolicy(void); +int proc_apply_workq_bgthreadpolicy(thread_t); + +int proc_restore_bgtaskpolicy(task_t task); +int proc_restore_bgthreadpolicy(task_t task, uint64_t tid); +int proc_restore_bgthread_selfpolicy(void); +int proc_restore_workq_bgthreadpolicy(thread_t); +void proc_task_remove_throttle(task_t task); + +/* hw access routines */ +int proc_apply_task_diskacc(task_t task, int policy); +int proc_apply_thread_diskacc(task_t task, uint64_t tid, int policy); +int proc_apply_thread_selfdiskacc(int policy); +int proc_get_task_disacc(task_t task); +int proc_get_task_selfdiskacc(void); +int proc_get_diskacc(thread_t thread); +int proc_get_thread_selfdiskacc(void); +int proc_denyinherit_policy(task_t task); +int proc_denyselfset_policy(task_t task); + +int proc_get_task_selfgpuacc_deny(void); +int proc_apply_task_gpuacc(task_t task, int prio); + +int proc_get_task_ruse_cpu(task_t task, uint32_t * policyp, uint32_t * percentagep, uint64_t * intervalp, uint64_t * deadlinep); +int proc_set_task_ruse_cpu(task_t task, uint32_t policy, uint32_t percentage, uint64_t interval, uint64_t deadline); +int proc_clear_task_ruse_cpu(task_t task); +thread_t task_findtid(task_t, uint64_t); + +#define TASK_RUSECPU_FLAGS_PROC_LIMIT 0x1 +#define TASK_RUSECPU_FLAGS_PERTHR_LIMIT 0x2 +#define TASK_RUSECPU_FLAGS_DEADLINE 0x4 + +#define PROC_POLICY_OSX_APPTYPE_NONE 0 +#if CONFIG_EMBEDDED +#define PROC_POLICY_IOS_RESV1_APPTYPE 1 +#define PROC_POLICY_IOS_APPLE_DAEMON 2 +#define PROC_POLICY_IOS_APPTYPE 3 +#define PROC_POLICY_IOS_NONUITYPE 4 +#else +#define PROC_POLICY_OSX_APPTYPE_TAL 1 +#define PROC_POLICY_OSX_APPTYPE_WIDGET 2 +#define PROC_POLICY_OSX_APPTYPE_DBCLIENT 2 /* Not a bug, just rename of widget */ +#endif + +void proc_set_task_apptype(task_t task, int type, thread_t thread); +int proc_disable_task_apptype(task_t task, int policy_subtype); +int proc_enable_task_apptype(task_t task, int policy_subtype); + +#if CONFIG_EMBEDDED +extern int proc_setthread_saved_importance(thread_t thread, int importance); +#endif + +/* BSD call back functions */ +extern int proc_apply_resource_actions(void * p, int type, int action); +extern int proc_restore_resource_actions(void * p, int type, int action); +extern int task_restore_resource_actions(task_t task, int type); + +extern void proc_apply_task_networkbg(void * bsd_info); +extern void proc_restore_task_networkbg(void * bsd_info); +extern void proc_set_task_networkbg(void * bsd_info, int setbg); +extern int task_clear_cpuusage(task_t task); + +#if CONFIG_EMBEDDED +#define TASK_APPSTATE_NONE 0 +#define TASK_APPSTATE_ACTIVE 1 +#define TASK_APPSTATE_BACKGROUND 2 +#define TASK_APPSTATE_NONUI 3 +#define TASK_APPSTATE_INACTIVE 4 + +extern int proc_lf_getappstate(task_t task); +extern int proc_lf_setappstate(task_t task, int state); +extern int proc_lf_pidbind(task_t curtask, uint64_t tid, task_t target_task, int bind); +extern void thead_remove_taskwatch(thread_t thread); +extern void task_removewatchers(task_t task); +#endif /* CONFIG_EMBEDDED */ + #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); +extern ledger_t get_task_ledger(task_t); + +extern boolean_t get_task_pidsuspended(task_t); +extern boolean_t get_task_frozen(task_t); + +/* Convert from a task to a port */ +extern ipc_port_t convert_task_to_port(task_t); + +/* Convert from a task name to a port */ +extern ipc_port_t convert_task_name_to_port(task_name_t); #endif /* KERNEL_PRIVATE */