/*
- * Copyright (c) 2000-2008 Apple Computer, Inc. All rights reserved.
+ * Copyright (c) 2000-2016 Apple Computer, Inc. All rights reserved.
*
* @APPLE_OSREFERENCE_LICENSE_HEADER_START@
*
#ifndef _IPC_IPC_PORT_H_
#define _IPC_IPC_PORT_H_
-#if MACH_KERNEL_PRIVATE
+#ifdef MACH_KERNEL_PRIVATE
#include <mach_rt.h>
#include <mach_assert.h>
#include <mach/kern_return.h>
#include <mach/port.h>
+#include <kern/assert.h>
#include <kern/kern_types.h>
#include <ipc/ipc_types.h>
union {
ipc_kobject_t kobject;
- task_t imp_task;
+ ipc_importance_task_t imp_task;
uintptr_t alias;
} kdata;
struct ipc_port_request *ip_requests;
struct ipc_kmsg *ip_premsg;
- mach_port_mscount_t ip_mscount;
- mach_port_rights_t ip_srights;
- mach_port_rights_t ip_sorights;
+ mach_vm_address_t ip_context;
natural_t ip_sprequests:1, /* send-possible requests outstanding */
ip_spimportant:1, /* ... at least one is importance donating */
ip_impdonation:1, /* port supports importance donation */
ip_tempowner:1, /* dont give donations to current receiver */
- ip_taskptr:1, /* ... instead give them to a specified task */
ip_guarded:1, /* port guarded (use context value as guard) */
ip_strict_guard:1, /* Strict guarding; Prevents user manipulation of context values directly */
- ip_reserved:1,
+ ip_reserved:2,
ip_impcount:24; /* number of importance donations in nested queue */
- mach_vm_address_t ip_context;
-
+ mach_port_mscount_t ip_mscount;
+ mach_port_rights_t ip_srights;
+ mach_port_rights_t ip_sorights;
#if MACH_ASSERT
#define IP_NSPARES 4
#define IP_CALLSTACK_MAX 16
- queue_chain_t ip_port_links; /* all allocated ports */
+/* queue_chain_t ip_port_links;*//* all allocated ports */
thread_t ip_thread; /* who made me? thread context */
unsigned long ip_timetrack; /* give an idea of "when" created */
uintptr_t ip_callstack[IP_CALLSTACK_MAX]; /* stack trace */
unsigned long ip_spares[IP_NSPARES]; /* for debugging */
#endif /* MACH_ASSERT */
-
-#if CONFIG_MACF_MACH
- struct label ip_label;
-#endif
-};
+} __attribute__((__packed__));
#define ip_references ip_object.io_references
#define ip_bits ip_object.io_bits
#define ip_receiver_name ip_messages.imq_receiver_name
-#define ip_pset_count ip_messages.imq_pset_count
+#define ip_in_pset ip_messages.imq_in_pset
#define ip_receiver data.receiver
#define ip_destination data.destination
#define ip_reference(port) io_reference(&(port)->ip_object)
#define ip_release(port) io_release(&(port)->ip_object)
+/* get an ipc_port pointer from an ipc_mqueue pointer */
+#define ip_from_mq(mq) ((struct ipc_port *)((void *)( \
+ (char *)(mq) - \
+ __offsetof(struct ipc_port, ip_messages)) \
+ ))
+
+#define ip_reference_mq(mq) ip_reference(ip_from_mq(mq))
+#define ip_release_mq(mq) ip_release(ip_from_mq(mq))
+
#define ip_kotype(port) io_kotype(&(port)->ip_object)
#define ip_full_kernel(port) imq_full_kernel(&(port)->ip_messages)
* when it is taken.
*/
-#if 1
-decl_lck_mtx_data(extern,ipc_port_multiple_lock_data)
-extern lck_mtx_ext_t ipc_port_multiple_lock_data_ext;
-
-#define ipc_port_multiple_lock_init() \
- lck_mtx_init_ext(&ipc_port_multiple_lock_data, &ipc_port_multiple_lock_data_ext, &ipc_lck_grp, &ipc_lck_attr)
-
-#define ipc_port_multiple_lock() \
- lck_mtx_lock(&ipc_port_multiple_lock_data)
-
-#define ipc_port_multiple_unlock() \
- lck_mtx_unlock(&ipc_port_multiple_lock_data)
-#else
-lck_spin_t ipc_port_multiple_lock_data;
+extern lck_spin_t ipc_port_multiple_lock_data;
#define ipc_port_multiple_lock_init() \
lck_spin_init(&ipc_port_multiple_lock_data, &ipc_lck_grp, &ipc_lck_attr)
#define ipc_port_multiple_unlock() \
lck_spin_unlock(&ipc_port_multiple_lock_data)
-#endif
/*
* The port timestamp facility provides timestamps
ipc_port_request_index_t index);
/* Arm any delayed send-possible notification */
-#if IMPORTANCE_INHERITANCE
extern boolean_t ipc_port_request_sparm(
- ipc_port_t port,
- mach_port_name_t name,
- ipc_port_request_index_t index,
- mach_msg_option_t option);
-#else
-extern boolean_t ipc_port_request_sparm(
- ipc_port_t port,
- mach_port_name_t name,
- ipc_port_request_index_t index);
-#endif /* IMPORTANCE_INHERITANCE */
+ ipc_port_t port,
+ mach_port_name_t name,
+ ipc_port_request_index_t index,
+ mach_msg_option_t option,
+ mach_msg_priority_t override);
/* Macros for manipulating a port's dead name notificaiton requests */
#define ipc_port_request_rename(port, index, oname, nname) \
MACRO_END
/* Prepare a receive right for transmission/destruction */
-extern void ipc_port_clear_receiver(
+extern boolean_t ipc_port_clear_receiver(
ipc_port_t port,
- queue_t links);
+ boolean_t should_destroy);
/* Initialize a newly-allocated port */
extern void ipc_port_init(
ipc_port_t dest);
#if IMPORTANCE_INHERITANCE
-/* Apply an importance delta to a port */
+
+enum {
+ IPID_OPTION_NORMAL = 0, /* normal boost */
+ IPID_OPTION_SENDPOSSIBLE = 1, /* send-possible induced boost */
+};
+
+/* apply importance delta to port only */
+extern mach_port_delta_t
+ipc_port_impcount_delta(
+ ipc_port_t port,
+ mach_port_delta_t delta,
+ ipc_port_t base);
+
+/* apply importance delta to port, and return task importance for update */
+extern boolean_t
+ipc_port_importance_delta_internal(
+ ipc_port_t port,
+ natural_t options,
+ mach_port_delta_t *deltap,
+ ipc_importance_task_t *imp_task);
+
+/* Apply an importance delta to a port and reflect change in receiver task */
extern boolean_t
ipc_port_importance_delta(
ipc_port_t port,
+ natural_t options,
mach_port_delta_t delta);
#endif /* IMPORTANCE_INHERITANCE */
#endif /* KERNEL_PRIVATE */
-#if MACH_KERNEL_PRIVATE
+#ifdef MACH_KERNEL_PRIVATE
/* Make a naked send-once right from a locked and active receive right */
extern ipc_port_t ipc_port_make_sonce_locked(
projects / apple / xnu.git / blobdiff