* taken when the port was destroyed.
*/
+struct task_watchport_elem;
+
typedef unsigned int ipc_port_timestamp_t;
struct ipc_port {
union {
ipc_kobject_t kobject;
+ ipc_kobject_label_t kolabel;
ipc_importance_task_t imp_task;
ipc_port_t sync_inheritor_port;
struct knote *sync_inheritor_knote;
union {
struct ipc_kmsg *premsg;
struct turnstile *send_turnstile;
- SLIST_ENTRY(ipc_port) dealloc_elm;
} kdata2;
mach_vm_address_t ip_context;
ip_guarded:1, /* port guarded (use context value as guard) */
ip_strict_guard:1, /* Strict guarding; Prevents user manipulation of context values directly */
ip_specialreply:1, /* port is a special reply port */
- ip_sync_link_state:3, /* link the special reply port to destination port/ Workloop */
- ip_impcount:22; /* number of importance donations in nested queue */
+ ip_sync_link_state:3, /* link the port to destination port/ Workloop */
+ ip_sync_bootstrap_checkin:1,/* port part of sync bootstrap checkin, push on thread doing the checkin */
+ ip_immovable_receive:1, /* the receive right cannot be moved out of a space, until it is destroyed */
+ ip_no_grant:1, /* Port wont accept complex messages containing (ool) port descriptors */
+ ip_immovable_send:1, /* No send(once) rights to this port can be moved out of a space */
+ ip_impcount:18; /* number of importance donations in nested queue */
mach_port_mscount_t ip_mscount;
mach_port_rights_t ip_srights;
#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_in_pset ip_messages.imq_in_pset
+#define ip_reply_context ip_messages.imq_context
#define ip_receiver data.receiver
#define ip_destination data.destination
#define ip_timestamp data.timestamp
#define ip_kobject kdata.kobject
+#define ip_kolabel kdata.kolabel
#define ip_imp_task kdata.imp_task
#define ip_sync_inheritor_port kdata.sync_inheritor_port
#define ip_sync_inheritor_knote kdata.sync_inheritor_knote
#define ip_premsg kdata2.premsg
#define ip_send_turnstile kdata2.send_turnstile
-#define ip_dealloc_elm kdata2.dealloc_elm
#define port_send_turnstile(port) (IP_PREALLOC(port) ? (port)->ip_premsg->ikm_turnstile : (port)->ip_send_turnstile)
#define port_send_turnstile_address(port) \
(IP_PREALLOC(port) ? &((port)->ip_premsg->ikm_turnstile) : &((port)->ip_send_turnstile))
-#define port_rcv_turnstile_address(port) (NULL)
+#define port_rcv_turnstile_address(port) \
+ &(port)->ip_messages.imq_wait_queue.waitq_ts
/*
- * SYNC IPC state flags for special reply port.
+ * SYNC IPC state flags for special reply port/ rcv right.
*
* PORT_SYNC_LINK_ANY
* Special reply port is not linked to any other port
* Message sent to special reply port, do
* not allow any linkages till receive is
* complete.
+ *
+ * PORT_SYNC_LINK_RCV_THREAD
+ * Receive right copied out as a part of bootstrap check in,
+ * push on the thread which copied out the port.
*/
#define PORT_SYNC_LINK_ANY (0)
#define PORT_SYNC_LINK_PORT (0x1)
#define PORT_SYNC_LINK_WORKLOOP_KNOTE (0x2)
#define PORT_SYNC_LINK_WORKLOOP_STASH (0x3)
#define PORT_SYNC_LINK_NO_LINKAGE (0x4)
+#define PORT_SYNC_LINK_RCV_THREAD (0x5)
#define IP_NULL IPC_PORT_NULL
#define IP_DEAD IPC_PORT_DEAD
#define IP_VALID(port) IPC_PORT_VALID(port)
-#define ip_active(port) io_active(&(port)->ip_object)
-#define ip_lock_init(port) io_lock_init(&(port)->ip_object)
-#define ip_lock(port) io_lock(&(port)->ip_object)
-#define ip_lock_try(port) io_lock_try(&(port)->ip_object)
-#define ip_lock_held_kdp(port) io_lock_held_kdp(&(port)->ip_object)
-#define ip_unlock(port) io_unlock(&(port)->ip_object)
+#define ip_object_to_port(io) __container_of(io, struct ipc_port, ip_object)
+#define ip_to_object(port) (&(port)->ip_object)
+#define ip_active(port) io_active(ip_to_object(port))
+#define ip_lock_init(port) io_lock_init(ip_to_object(port))
+#define ip_lock_held(port) io_lock_held(ip_to_object(port))
+#define ip_lock(port) io_lock(ip_to_object(port))
+#define ip_lock_try(port) io_lock_try(ip_to_object(port))
+#define ip_lock_held_kdp(port) io_lock_held_kdp(ip_to_object(port))
+#define ip_unlock(port) io_unlock(ip_to_object(port))
-#define ip_reference(port) io_reference(&(port)->ip_object)
-#define ip_release(port) io_release(&(port)->ip_object)
+#define ip_reference(port) io_reference(ip_to_object(port))
+#define ip_release(port) io_release(ip_to_object(port))
/* get an ipc_port pointer from an ipc_mqueue pointer */
#define ip_from_mq(mq) \
#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_kotype(port) io_kotype(ip_to_object(port))
+#define ip_is_kobject(port) io_is_kobject(ip_to_object(port))
+#define ip_is_kolabeled(port) io_is_kolabeled(ip_to_object(port))
+#define ip_get_kobject(port) ipc_kobject_get(port)
+#define ip_label_check(space, port, msgt_name) \
+ (!ip_is_kolabeled(port) || ipc_kobject_label_check((space), (port), (msgt_name)))
#define ip_full_kernel(port) imq_full_kernel(&(port)->ip_messages)
#define ip_full(port) imq_full(&(port)->ip_messages)
* therefore cannot be blocked waiting for memory themselves).
*/
#define IP_BIT_PREALLOC 0x00008000 /* preallocated mesg */
-#define IP_PREALLOC(port) ((port)->ip_bits & IP_BIT_PREALLOC)
+#define IP_PREALLOC(port) ((port)->ip_object.io_bits & IP_BIT_PREALLOC)
#define IP_SET_PREALLOC(port, kmsg) \
MACRO_BEGIN \
- (port)->ip_bits |= IP_BIT_PREALLOC; \
+ (port)->ip_object.io_bits |= IP_BIT_PREALLOC; \
(port)->ip_premsg = (kmsg); \
MACRO_END
#define IP_CLEAR_PREALLOC(port, kmsg) \
MACRO_BEGIN \
assert((port)->ip_premsg == kmsg); \
- (port)->ip_bits &= ~IP_BIT_PREALLOC; \
+ (port)->ip_object.io_bits &= ~IP_BIT_PREALLOC; \
(port)->ip_premsg = IKM_NULL; \
MACRO_END
#define IP_TIMESTAMP_ORDER(one, two) ((int) ((one) - (two)) < 0)
+static inline void
+require_ip_active(ipc_port_t port)
+{
+ if (!ip_active(port)) {
+ panic("Using inactive port %p", port);
+ }
+}
+
+static inline kern_return_t
+ipc_port_translate(
+ ipc_space_t space,
+ mach_port_name_t name,
+ mach_port_right_t right,
+ ipc_port_t *portp)
+{
+ ipc_object_t object;
+ kern_return_t kr;
+
+ kr = ipc_object_translate(space, name, right, &object);
+ *portp = (kr == KERN_SUCCESS) ? ip_object_to_port(object) : IP_NULL;
+ return kr;
+}
+
#define ipc_port_translate_receive(space, name, portp) \
- ipc_object_translate((space), (name), \
- MACH_PORT_RIGHT_RECEIVE, \
- (ipc_object_t *) (portp))
+ ipc_port_translate((space), (name), MACH_PORT_RIGHT_RECEIVE, portp)
#define ipc_port_translate_send(space, name, portp) \
- ipc_object_translate((space), (name), \
- MACH_PORT_RIGHT_SEND, \
- (ipc_object_t *) (portp))
+ ipc_port_translate((space), (name), MACH_PORT_RIGHT_SEND, portp)
/* Allocate a notification request slot */
#if IMPORTANCE_INHERITANCE
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_BEGIN \
- ipc_port_request_t ipr, table; \
- \
- assert(ip_active(port)); \
- \
- table = port->ip_requests; \
- assert(table != IPR_NULL); \
- \
- ipr = &table[index]; \
- assert(ipr->ipr_name == oname); \
- \
- ipr->ipr_name = nname; \
-MACRO_END
-
-
/* Make a port-deleted request */
extern void ipc_port_pdrequest(
ipc_port_t port,
ipc_port_t notify,
ipc_port_t *previousp);
-#define ipc_port_set_mscount(port, mscount) \
-MACRO_BEGIN \
- assert(ip_active(port)); \
- \
- (port)->ip_mscount = (mscount); \
-MACRO_END
-
/* Prepare a receive right for transmission/destruction */
extern boolean_t ipc_port_clear_receiver(
ipc_port_t port,
boolean_t should_destroy);
+__options_decl(ipc_port_init_flags_t, uint32_t, {
+ IPC_PORT_INIT_NONE = 0x00000000,
+ IPC_PORT_INIT_MAKE_SEND_RIGHT = 0x00000001,
+ IPC_PORT_INIT_MESSAGE_QUEUE = 0x00000002,
+ IPC_PORT_INIT_SPECIAL_REPLY = 0x00000004,
+});
+
/* Initialize a newly-allocated port */
extern void ipc_port_init(
ipc_port_t port,
ipc_space_t space,
+ ipc_port_init_flags_t flags,
mach_port_name_t name);
/* Allocate a port */
extern kern_return_t ipc_port_alloc(
ipc_space_t space,
+ ipc_port_init_flags_t flags,
mach_port_name_t *namep,
ipc_port_t *portp);
/* Allocate a port, with a specific name */
extern kern_return_t ipc_port_alloc_name(
ipc_space_t space,
+ ipc_port_init_flags_t flags,
mach_port_name_t name,
ipc_port_t *portp);
void
ipc_port_link_special_reply_port(
ipc_port_t special_reply_port,
- ipc_port_t dest_port);
+ ipc_port_t dest_port,
+ boolean_t sync_bootstrap_checkin);
#define IPC_PORT_ADJUST_SR_NONE 0
-#define IPC_PORT_ADJUST_SR_CLEAR_SPECIAL_REPLY 0x1
-#define IPC_PORT_ADJUST_SR_ALLOW_SYNC_LINKAGE 0x2
-#define IPC_PORT_ADJUST_SR_LINK_WORKLOOP 0x4
-
+#define IPC_PORT_ADJUST_SR_ALLOW_SYNC_LINKAGE 0x1
+#define IPC_PORT_ADJUST_SR_LINK_WORKLOOP 0x2
+#define IPC_PORT_ADJUST_UNLINK_THREAD 0x4
#define IPC_PORT_ADJUST_SR_RECEIVED_MSG 0x8
#define IPC_PORT_ADJUST_SR_ENABLE_EVENT 0x10
+#define IPC_PORT_ADJUST_RESET_BOOSTRAP_CHECKIN 0x20
void
-reset_ip_srp_bits(ipc_port_t special_reply_port);
-
-void
-reset_ip_srp_msg_sent(ipc_port_t special_reply_port);
+ipc_special_reply_port_bits_reset(ipc_port_t special_reply_port);
void
-set_ip_srp_msg_sent(ipc_port_t special_reply_port);
+ipc_special_reply_port_msg_sent(ipc_port_t special_reply_port);
void
-set_ip_srp_lost_link(ipc_port_t special_reply_port);
+ipc_special_reply_port_msg_sent(ipc_port_t special_reply_port);
/* Adjust special reply port linkage */
-void ipc_port_adjust_special_reply_port_locked(
+void
+ipc_port_adjust_special_reply_port_locked(
ipc_port_t special_reply_port,
struct knote *kn,
uint8_t flags,
boolean_t get_turnstile);
+void
+ipc_port_adjust_sync_link_state_locked(
+ ipc_port_t port,
+ int sync_link_state,
+ turnstile_inheritor_t inheritor);
+
/* Adjust special reply port linkage */
void
ipc_port_adjust_special_reply_port(
ipc_port_t special_reply_port,
- uint8_t flags,
- boolean_t get_turnstile);
+ uint8_t flags);
-turnstile_inheritor_t
-ipc_port_get_special_reply_port_inheritor(
- ipc_port_t special_reply_port);
+void
+ipc_port_adjust_port_locked(
+ ipc_port_t port,
+ struct knote *kn,
+ boolean_t sync_bootstrap_checkin);
+
+void
+ipc_port_clear_sync_rcv_thread_boost_locked(
+ ipc_port_t port);
+
+kern_return_t
+ipc_port_add_watchport_elem_locked(
+ ipc_port_t port,
+ struct task_watchport_elem *watchport_elem,
+ struct task_watchport_elem **old_elem);
+
+kern_return_t
+ipc_port_clear_watchport_elem_internal_conditional_locked(
+ ipc_port_t port,
+ struct task_watchport_elem *watchport_elem);
+
+kern_return_t
+ipc_port_replace_watchport_elem_conditional_locked(
+ ipc_port_t port,
+ struct task_watchport_elem *old_watchport_elem,
+ struct task_watchport_elem *new_watchport_elem);
+
+struct task_watchport_elem *
+ipc_port_clear_watchport_elem_internal(
+ ipc_port_t port);
void
ipc_port_send_turnstile_prepare(ipc_port_t port);
struct waitq *
ipc_port_rcv_turnstile_waitq(struct waitq *waitq);
-struct turnstile *
-ipc_port_rcv_turnstile(ipc_port_t port);
-
/* apply importance delta to port only */
extern mach_port_delta_t
ipc_port_impcount_delta(
mach_port_delta_t delta);
#endif /* IMPORTANCE_INHERITANCE */
-/* Make a send-once notify port from a receive right */
-extern ipc_port_t ipc_port_lookup_notify(
- ipc_space_t space,
- mach_port_name_t name);
-
/* Make a naked send right from a receive right - port locked and active */
extern ipc_port_t ipc_port_make_send_locked(
ipc_port_t port);
extern ipc_port_t ipc_port_make_send(
ipc_port_t port);
+/* Make a naked send right from another naked send right - port locked and active */
+extern void ipc_port_copy_send_locked(
+ ipc_port_t port);
+
/* Make a naked send right from another naked send right */
extern ipc_port_t ipc_port_copy_send(
ipc_port_t port);
ipc_port_t sright,
ipc_space_t space);
-/* Copyout a naked send right to given name */
-extern mach_port_name_t ipc_port_copyout_name_send(
- ipc_port_t sright,
- ipc_space_t space,
- mach_port_name_t name);
-
#endif /* MACH_KERNEL_PRIVATE */
#if KERNEL_PRIVATE
/* Allocate a port in a special space */
extern ipc_port_t ipc_port_alloc_special(
- ipc_space_t space);
+ ipc_space_t space,
+ ipc_port_init_flags_t flags);
/* Deallocate a port in a special space */
extern void ipc_port_dealloc_special(
extern void ipc_port_debug_init(void);
#endif /* MACH_ASSERT */
-extern struct turnstile *ipc_port_get_inheritor(
- ipc_port_t port);
+extern void ipc_port_recv_update_inheritor(ipc_port_t port,
+ struct turnstile *turnstile,
+ turnstile_update_flags_t flags);
+
+extern void ipc_port_send_update_inheritor(ipc_port_t port,
+ struct turnstile *turnstile,
+ turnstile_update_flags_t flags);
#define ipc_port_alloc_kernel() \
- ipc_port_alloc_special(ipc_space_kernel)
+ ipc_port_alloc_special(ipc_space_kernel, IPC_PORT_INIT_NONE)
#define ipc_port_dealloc_kernel(port) \
ipc_port_dealloc_special((port), ipc_space_kernel)
#define ipc_port_alloc_reply() \
- ipc_port_alloc_special(ipc_space_reply)
+ ipc_port_alloc_special(ipc_space_reply, IPC_PORT_INIT_MESSAGE_QUEUE)
#define ipc_port_dealloc_reply(port) \
ipc_port_dealloc_special((port), ipc_space_reply)
projects / apple / xnu.git / blobdiff