xnu-3248.60.10.tar.gz

[apple/xnu.git] / osfmk / ipc / ipc_port.h

diff --git a/osfmk/ipc/ipc_port.h b/osfmk/ipc/ipc_port.h
index 34aab79d821ce4288c45b219f79221bc1d5cbe5f..92bb0e70abac4e511a278ccc5eb7cc3180696735 100644 (file)
--- a/osfmk/ipc/ipc_port.h
+++ b/osfmk/ipc/ipc_port.h
@@ -74,7 +74,6 @@
 
 #if MACH_KERNEL_PRIVATE
 
 
 #if MACH_KERNEL_PRIVATE
 

-#include <norma_vm.h>

 #include <mach_rt.h>
 #include <mach_assert.h>
 #include <mach_debug.h>
 #include <mach_rt.h>
 #include <mach_assert.h>
 #include <mach_debug.h>


@@ -84,6 +83,7 @@
 #include <mach/kern_return.h>
 #include <mach/port.h>
 
 #include <mach/kern_return.h>
 #include <mach/port.h>
 

+#include <kern/assert.h>

 #include <kern/kern_types.h>
 
 #include <ipc/ipc_types.h>
 #include <kern/kern_types.h>
 
 #include <ipc/ipc_types.h>


@@ -120,62 +120,63 @@ struct ipc_port {
        struct ipc_object ip_object;
        struct ipc_mqueue ip_messages;
 
        struct ipc_object ip_object;
        struct ipc_mqueue ip_messages;
 

+       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_guarded:1,         /* port guarded (use context value as guard) */
+                 ip_strict_guard:1,    /* Strict guarding; Prevents user manipulation of context values directly */
+                 ip_reserved:2,
+                 ip_impcount:24;       /* number of importance donations in nested queue */
+

        union {
                struct ipc_space *receiver;
                struct ipc_port *destination;
                ipc_port_timestamp_t timestamp;
        } data;
 
        union {
                struct ipc_space *receiver;
                struct ipc_port *destination;
                ipc_port_timestamp_t timestamp;
        } data;
 

-       ipc_kobject_t ip_kobject;
-
-       mach_port_mscount_t ip_mscount;
-       mach_port_rights_t ip_srights;
-       mach_port_rights_t ip_sorights;
-
+       union {
+               ipc_kobject_t kobject;
+               ipc_importance_task_t imp_task;
+               uintptr_t alias;
+       } kdata;
+               

        struct ipc_port *ip_nsrequest;
        struct ipc_port *ip_pdrequest;
        struct ipc_port_request *ip_requests;
        struct ipc_port *ip_nsrequest;
        struct ipc_port *ip_pdrequest;
        struct ipc_port_request *ip_requests;

-       boolean_t ip_sprequests;
-
-       unsigned int ip_pset_count;

        struct ipc_kmsg *ip_premsg;
        struct ipc_kmsg *ip_premsg;

+

        mach_vm_address_t ip_context;
 
        mach_vm_address_t ip_context;
 

-#if    NORMA_VM
-       /*
-        *      These fields are needed for the use of XMM.
-        *      Few ports need this information; it should
-        *      be kept in XMM instead (TBD).  XXX
-        */
-       long            ip_norma_xmm_object_refs;
-       struct ipc_port *ip_norma_xmm_object;
-#endif
+       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
 
 #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 */
        thread_t        ip_thread;      /* who made me?  thread context */
        unsigned long   ip_timetrack;   /* give an idea of "when" created */

-       natural_t       ip_callstack[IP_CALLSTACK_MAX]; /* stack trace */
+       uintptr_t       ip_callstack[IP_CALLSTACK_MAX]; /* stack trace */

        unsigned long   ip_spares[IP_NSPARES]; /* for debugging */
 #endif /* MACH_ASSERT */
        unsigned long   ip_spares[IP_NSPARES]; /* for debugging */
 #endif /* MACH_ASSERT */

-       uintptr_t               alias;
-
-#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_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_receiver             data.receiver
 #define        ip_destination          data.destination
 #define        ip_timestamp            data.timestamp
 
 #define        ip_receiver             data.receiver
 #define        ip_destination          data.destination
 #define        ip_timestamp            data.timestamp
 

-#define ip_receiver_name       ip_messages.imq_receiver_name
+#define ip_kobject             kdata.kobject
+#define ip_imp_task            kdata.imp_task
+#define ip_alias               kdata.alias

 
 #define IP_NULL                        IPC_PORT_NULL
 #define IP_DEAD                        IPC_PORT_DEAD
 
 #define IP_NULL                        IPC_PORT_NULL
 #define IP_DEAD                        IPC_PORT_DEAD


@@ -186,7 +187,6 @@ struct ipc_port {
 #define        ip_lock(port)           io_lock(&(port)->ip_object)
 #define        ip_lock_try(port)       io_lock_try(&(port)->ip_object)
 #define        ip_unlock(port)         io_unlock(&(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_unlock(port)         io_unlock(&(port)->ip_object)

-#define        ip_check_unlock(port)   io_check_unlock(&(port)->ip_object)

 
 #define        ip_reference(port)      io_reference(&(port)->ip_object)
 #define        ip_release(port)        io_release(&(port)->ip_object)
 
 #define        ip_reference(port)      io_reference(&(port)->ip_object)
 #define        ip_release(port)        io_release(&(port)->ip_object)


@@ -259,17 +259,16 @@ extern lck_attr_t         ipc_lck_attr;
  *     when it is taken.
  */
 
  *     when it is taken.
  */
 

-decl_lck_mtx_data(extern,ipc_port_multiple_lock_data)
-extern lck_mtx_ext_t   ipc_port_multiple_lock_data_ext;
+extern lck_spin_t ipc_port_multiple_lock_data;

 
 #define        ipc_port_multiple_lock_init()                                   \
 
 #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)
+               lck_spin_init(&ipc_port_multiple_lock_data, &ipc_lck_grp, &ipc_lck_attr)

 
 #define        ipc_port_multiple_lock()                                        \
 
 #define        ipc_port_multiple_lock()                                        \

-               lck_mtx_lock(&ipc_port_multiple_lock_data)
+               lck_spin_lock(&ipc_port_multiple_lock_data)

 
 #define        ipc_port_multiple_unlock()                                      \
 
 #define        ipc_port_multiple_unlock()                                      \

-               lck_mtx_unlock(&ipc_port_multiple_lock_data)
+               lck_spin_unlock(&ipc_port_multiple_lock_data)

 
 /*
  *     The port timestamp facility provides timestamps
 
 /*
  *     The port timestamp facility provides timestamps


@@ -277,20 +276,8 @@ extern lck_mtx_ext_t       ipc_port_multiple_lock_data_ext;
  *     mach_port_names with port death.
  */
 
  *     mach_port_names with port death.
  */
 

-decl_lck_mtx_data(extern,ipc_port_timestamp_lock_data)
-extern lck_mtx_ext_t   ipc_port_timestamp_lock_data_ext;
-

 extern ipc_port_timestamp_t ipc_port_timestamp_data;
 
 extern ipc_port_timestamp_t ipc_port_timestamp_data;
 

-#define        ipc_port_timestamp_lock_init()                                  \
-               lck_mtx_init_ext(&ipc_port_timestamp_lock_data, &ipc_port_timestamp_lock_data_ext, &ipc_lck_grp, &ipc_lck_attr)
-
-#define        ipc_port_timestamp_lock()                                       \
-               lck_mtx_lock(&ipc_port_timestamp_lock_data)
-
-#define        ipc_port_timestamp_unlock()                                     \
-               lck_mtx_unlock(&ipc_port_timestamp_lock_data)
-

 /* Retrieve a port timestamp value */
 extern ipc_port_timestamp_t ipc_port_timestamp(void);
 
 /* Retrieve a port timestamp value */
 extern ipc_port_timestamp_t ipc_port_timestamp(void);
 


@@ -314,6 +301,17 @@ extern ipc_port_timestamp_t ipc_port_timestamp(void);
                                     (ipc_object_t *) (portp))
 
 /* Allocate a notification request slot */
                                     (ipc_object_t *) (portp))
 
 /* Allocate a notification request slot */

+#if IMPORTANCE_INHERITANCE
+extern kern_return_t
+ipc_port_request_alloc(
+       ipc_port_t                      port,
+       mach_port_name_t                name,
+       ipc_port_t                      soright,
+       boolean_t                       send_possible,
+       boolean_t                       immediate,
+       ipc_port_request_index_t        *indexp,
+       boolean_t                       *importantp);
+#else

 extern kern_return_t
 ipc_port_request_alloc(
        ipc_port_t                      port,
 extern kern_return_t
 ipc_port_request_alloc(
        ipc_port_t                      port,


@@ -322,6 +320,7 @@ ipc_port_request_alloc(
        boolean_t                       send_possible,
        boolean_t                       immediate,
        ipc_port_request_index_t        *indexp);
        boolean_t                       send_possible,
        boolean_t                       immediate,
        ipc_port_request_index_t        *indexp);

+#endif /* IMPORTANCE_INHERITANCE */

 
 /* Grow one of a port's tables of notifcation requests */
 extern kern_return_t ipc_port_request_grow(
 
 /* Grow one of a port's tables of notifcation requests */
 extern kern_return_t ipc_port_request_grow(


@@ -341,10 +340,18 @@ extern ipc_port_t ipc_port_request_cancel(
        ipc_port_request_index_t        index);
 
 /* Arm any delayed send-possible notification */
        ipc_port_request_index_t        index);
 
 /* Arm any delayed send-possible notification */

-extern void ipc_port_request_sparm(
+#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);
        ipc_port_t                      port,
        mach_port_name_t                name,
        ipc_port_request_index_t        index);

+#endif /* IMPORTANCE_INHERITANCE */

 
 /* Macros for manipulating a port's dead name notificaiton requests */
 #define        ipc_port_request_rename(port, index, oname, nname)              \
 
 /* Macros for manipulating a port's dead name notificaiton requests */
 #define        ipc_port_request_rename(port, index, oname, nname)              \


@@ -424,6 +431,36 @@ ipc_port_check_circularity(
        ipc_port_t      port,
        ipc_port_t      dest);
 
        ipc_port_t      port,
        ipc_port_t      dest);
 

+#if IMPORTANCE_INHERITANCE
+
+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 */
+

 /* Make a send-once notify port from a receive right */
 extern ipc_port_t ipc_port_lookup_notify(
        ipc_space_t             space, 
 /* Make a send-once notify port from a receive right */
 extern ipc_port_t ipc_port_lookup_notify(
        ipc_space_t             space, 


@@ -454,10 +491,20 @@ extern mach_port_name_t ipc_port_copyout_send(
 extern void ipc_port_release_send(
        ipc_port_t      port);
 
 extern void ipc_port_release_send(
        ipc_port_t      port);
 

+extern void ipc_port_reference(
+       ipc_port_t port);
+
+extern void ipc_port_release(
+       ipc_port_t port);
+

 #endif /* KERNEL_PRIVATE */
 
 #if MACH_KERNEL_PRIVATE
 
 #endif /* KERNEL_PRIVATE */
 
 #if 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(
+       ipc_port_t      port);
+

 /* Make a naked send-once right from a receive right */
 extern ipc_port_t ipc_port_make_sonce(
        ipc_port_t      port);
 /* Make a naked send-once right from a receive right */
 extern ipc_port_t ipc_port_make_sonce(
        ipc_port_t      port);


@@ -502,12 +549,6 @@ extern void ipc_port_debug_init(void);
 #define        ipc_port_dealloc_reply(port)    \
                ipc_port_dealloc_special((port), ipc_space_reply)
 
 #define        ipc_port_dealloc_reply(port)    \
                ipc_port_dealloc_special((port), ipc_space_reply)
 

-#define        ipc_port_reference(port)        \
-               ipc_object_reference(&(port)->ip_object)
-
-#define        ipc_port_release(port)          \
-               ipc_object_release(&(port)->ip_object)
-

 #endif /* MACH_KERNEL_PRIVATE */
 
 #endif /* _IPC_IPC_PORT_H_ */
 #endif /* MACH_KERNEL_PRIVATE */
 
 #endif /* _IPC_IPC_PORT_H_ */