xnu-6153.61.1.tar.gz

[apple/xnu.git] / osfmk / kern / host_notify.c

diff --git a/osfmk/kern/host_notify.c b/osfmk/kern/host_notify.c
index 9497b786329810d75990c78b0cfdcea9cc04da47..dfb2703b4013ccb8a9747102c0eae8b97cebd94e 100644 (file)
--- a/osfmk/kern/host_notify.c
+++ b/osfmk/kern/host_notify.c
@@ -1,31 +1,29 @@
 /*
 /*

- * Copyright (c) 2003-2004 Apple Computer, Inc. All rights reserved.
+ * Copyright (c) 2003-2019 Apple Inc. All rights reserved.

  *
  *

- * @APPLE_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 Original Code and all software distributed under the License are
- * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
+ * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
+ *
+ * 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.
+ *
+ * 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,
  * 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.
- * 
- * @APPLE_LICENSE_HEADER_END@
- */
-/*
- * Copyright (c) 2003 Apple Computer, Inc.  All rights reserved.
+ * 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.

  *
  *

- * HISTORY
- *
- * 16 January 2003 (debo)
- *  Created.
+ * @APPLE_OSREFERENCE_LICENSE_HEADER_END@

  */
 
 #include <mach/mach_types.h>
  */
 
 #include <mach/mach_types.h>


@@ -39,67 +37,82 @@
 
 #include "mach/host_notify_reply.h"
 
 
 #include "mach/host_notify_reply.h"
 

-static zone_t                  host_notify_zone;
-decl_mutex_data(static,host_notify_lock)
+decl_lck_mtx_data(, host_notify_lock);
+
+lck_mtx_ext_t                   host_notify_lock_ext;
+lck_grp_t                               host_notify_lock_grp;
+lck_attr_t                              host_notify_lock_attr;
+static lck_grp_attr_t   host_notify_lock_grp_attr;
+static zone_t                   host_notify_zone;

 
 

-static queue_head_t            host_notify_queue[HOST_NOTIFY_TYPE_MAX+1];
+static queue_head_t             host_notify_queue[HOST_NOTIFY_TYPE_MAX + 1];

 
 

-static mach_msg_id_t   host_notify_replyid[HOST_NOTIFY_TYPE_MAX+1] =
-                                                               { HOST_CALENDAR_CHANGED_REPLYID };
+static mach_msg_id_t    host_notify_replyid[HOST_NOTIFY_TYPE_MAX + 1] =
+{ HOST_CALENDAR_CHANGED_REPLYID,
+  HOST_CALENDAR_SET_REPLYID };

 
 struct host_notify_entry {
 
 struct host_notify_entry {

-       queue_chain_t           entries;
-       ipc_port_t                      port;
+       queue_chain_t           entries;
+       ipc_port_t                      port;

 };
 
 };
 

-typedef struct host_notify_entry       *host_notify_t;
+typedef struct host_notify_entry        *host_notify_t;

 
 void
 host_notify_init(void)
 {
 
 void
 host_notify_init(void)
 {

-       int             i;
+       int             i;

 
 

-       for (i = 0; i <= HOST_NOTIFY_TYPE_MAX; i++)
+       for (i = 0; i <= HOST_NOTIFY_TYPE_MAX; i++) {

                queue_init(&host_notify_queue[i]);
                queue_init(&host_notify_queue[i]);

+       }
+
+       lck_grp_attr_setdefault(&host_notify_lock_grp_attr);
+       lck_grp_init(&host_notify_lock_grp, "host_notify", &host_notify_lock_grp_attr);
+       lck_attr_setdefault(&host_notify_lock_attr);

 
 

-       mutex_init(&host_notify_lock, 0);
+       lck_mtx_init_ext(&host_notify_lock, &host_notify_lock_ext, &host_notify_lock_grp, &host_notify_lock_attr);

 
 

-       i = sizeof (struct host_notify_entry);
+       i = sizeof(struct host_notify_entry);

        host_notify_zone =
        host_notify_zone =

-                       zinit(i, (4096 * i), (16 * i), "host_notify");
+           zinit(i, (4096 * i), (16 * i), "host_notify");

 }
 
 kern_return_t
 host_request_notification(
 }
 
 kern_return_t
 host_request_notification(

-       host_t                                  host,
-       host_flavor_t                   notify_type,
-       ipc_port_t                              port)
+       host_t                                  host,
+       host_flavor_t                   notify_type,
+       ipc_port_t                              port)

 {
 {

-       host_notify_t           entry;
+       host_notify_t           entry;

 
 

-       if (host == HOST_NULL)
-               return (KERN_INVALID_ARGUMENT);
+       if (host == HOST_NULL) {
+               return KERN_INVALID_ARGUMENT;
+       }

 
 

-       if (!IP_VALID(port))
-               return (KERN_INVALID_CAPABILITY);
+       if (!IP_VALID(port)) {
+               return KERN_INVALID_CAPABILITY;
+       }

 
 

-       if (notify_type > HOST_NOTIFY_TYPE_MAX || notify_type < 0)
-               return (KERN_INVALID_ARGUMENT);
+       if (notify_type > HOST_NOTIFY_TYPE_MAX || notify_type < 0) {
+               return KERN_INVALID_ARGUMENT;
+       }

 
        entry = (host_notify_t)zalloc(host_notify_zone);
 
        entry = (host_notify_t)zalloc(host_notify_zone);

-       if (entry == NULL)
-               return (KERN_RESOURCE_SHORTAGE);
+       if (entry == NULL) {
+               return KERN_RESOURCE_SHORTAGE;
+       }

 
 

-       mutex_lock(&host_notify_lock);
+       lck_mtx_lock(&host_notify_lock);

 
        ip_lock(port);
 
        ip_lock(port);

-       if (!ip_active(port) || ip_kotype(port) != IKOT_NONE) {
+       if (!ip_active(port) || port->ip_tempowner || ip_kotype(port) != IKOT_NONE) {

                ip_unlock(port);
 
                ip_unlock(port);
 

-               mutex_unlock(&host_notify_lock);
+               lck_mtx_unlock(&host_notify_lock);

                zfree(host_notify_zone, entry);
 
                zfree(host_notify_zone, entry);
 

-               return (KERN_FAILURE);
+               return KERN_FAILURE;

        }
 
        entry->port = port;
        }
 
        entry->port = port;


@@ -107,18 +120,18 @@ host_request_notification(
        ip_unlock(port);
 
        enqueue_tail(&host_notify_queue[notify_type], (queue_entry_t)entry);
        ip_unlock(port);
 
        enqueue_tail(&host_notify_queue[notify_type], (queue_entry_t)entry);

-       mutex_unlock(&host_notify_lock);
+       lck_mtx_unlock(&host_notify_lock);

 
 

-       return (KERN_SUCCESS);
+       return KERN_SUCCESS;

 }
 
 void
 host_notify_port_destroy(
 }
 
 void
 host_notify_port_destroy(

-       ipc_port_t                      port)
+       ipc_port_t                      port)

 {
 {

-       host_notify_t           entry;
+       host_notify_t           entry;

 
 

-       mutex_lock(&host_notify_lock);
+       lck_mtx_lock(&host_notify_lock);

 
        ip_lock(port);
        if (ip_kotype(port) == IKOT_HOST_NOTIFY) {
 
        ip_lock(port);
        if (ip_kotype(port) == IKOT_HOST_NOTIFY) {


@@ -128,8 +141,8 @@ host_notify_port_destroy(
                ip_unlock(port);
 
                assert(entry->port == port);
                ip_unlock(port);
 
                assert(entry->port == port);

-               remqueue(NULL, (queue_entry_t)entry);
-               mutex_unlock(&host_notify_lock);
+               remqueue((queue_entry_t)entry);
+               lck_mtx_unlock(&host_notify_lock);

                zfree(host_notify_zone, entry);
 
                ipc_port_release_sonce(port);
                zfree(host_notify_zone, entry);
 
                ipc_port_release_sonce(port);


@@ -137,22 +150,22 @@ host_notify_port_destroy(
        }
        ip_unlock(port);
 
        }
        ip_unlock(port);
 

-       mutex_unlock(&host_notify_lock);
+       lck_mtx_unlock(&host_notify_lock);

 }
 
 static void
 host_notify_all(
 }
 
 static void
 host_notify_all(

-       host_flavor_t           notify_type,
-       mach_msg_header_t       *msg,
-       mach_msg_size_t         msg_size)
+       host_flavor_t           notify_type,
+       mach_msg_header_t       *msg,
+       mach_msg_size_t         msg_size)

 {
 {

-       queue_t         notify_queue = &host_notify_queue[notify_type];
+       queue_t         notify_queue = &host_notify_queue[notify_type];

 
 

-       mutex_lock(&host_notify_lock);
+       lck_mtx_lock(&host_notify_lock);

 
        if (!queue_empty(notify_queue)) {
 
        if (!queue_empty(notify_queue)) {

-               queue_head_t            send_queue;
-               host_notify_t           entry;
+               queue_head_t            send_queue;
+               host_notify_t           entry;

 
                send_queue = *notify_queue;
                queue_init(notify_queue);
 
                send_queue = *notify_queue;
                queue_init(notify_queue);


@@ -160,13 +173,14 @@ host_notify_all(
                send_queue.next->prev = &send_queue;
                send_queue.prev->next = &send_queue;
 
                send_queue.next->prev = &send_queue;
                send_queue.prev->next = &send_queue;
 

-               msg->msgh_bits = MACH_MSGH_BITS(MACH_MSG_TYPE_MOVE_SEND_ONCE, 0);
+               msg->msgh_bits =
+                   MACH_MSGH_BITS_SET(MACH_MSG_TYPE_MOVE_SEND_ONCE, 0, 0, 0);

                msg->msgh_local_port = MACH_PORT_NULL;
                msg->msgh_local_port = MACH_PORT_NULL;

+               msg->msgh_voucher_port = MACH_PORT_NULL;

                msg->msgh_id = host_notify_replyid[notify_type];
                msg->msgh_id = host_notify_replyid[notify_type];

-               msg->msgh_reserved = 0;

 
                while ((entry = (host_notify_t)dequeue(&send_queue)) != NULL) {
 
                while ((entry = (host_notify_t)dequeue(&send_queue)) != NULL) {

-                       ipc_port_t              port;
+                       ipc_port_t              port;

 
                        port = entry->port;
                        assert(port != IP_NULL);
 
                        port = entry->port;
                        assert(port != IP_NULL);


@@ -177,24 +191,32 @@ host_notify_all(
                        ipc_kobject_set_atomically(port, IKO_NULL, IKOT_NONE);
                        ip_unlock(port);
 
                        ipc_kobject_set_atomically(port, IKO_NULL, IKOT_NONE);
                        ip_unlock(port);
 

-                       mutex_unlock(&host_notify_lock);
+                       lck_mtx_unlock(&host_notify_lock);

                        zfree(host_notify_zone, entry);
 
                        msg->msgh_remote_port = port;
 
                        zfree(host_notify_zone, entry);
 
                        msg->msgh_remote_port = port;
 

-                       (void) mach_msg_send_from_kernel(msg, msg_size);
+                       (void) mach_msg_send_from_kernel_proper(msg, msg_size);

 
 

-                       mutex_lock(&host_notify_lock);
+                       lck_mtx_lock(&host_notify_lock);

                }
        }
 
                }
        }
 

-       mutex_unlock(&host_notify_lock);
+       lck_mtx_unlock(&host_notify_lock);

 }
 
 void
 host_notify_calendar_change(void)
 {
 }
 
 void
 host_notify_calendar_change(void)
 {

-       __Request__host_calendar_changed_t      msg;
+       __Request__host_calendar_changed_t      msg;
+
+       host_notify_all(HOST_NOTIFY_CALENDAR_CHANGE, &msg.Head, sizeof(msg));
+}
+
+void
+host_notify_calendar_set(void)
+{
+       __Request__host_calendar_set_t  msg;

 
 

-       host_notify_all(HOST_NOTIFY_CALENDAR_CHANGE, &msg.Head, sizeof (msg));
+       host_notify_all(HOST_NOTIFY_CALENDAR_SET, &msg.Head, sizeof(msg));

 }
 }