/*
- * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
+ * Copyright (c) 2000-2012 Apple Inc. All rights reserved.
*
- * @APPLE_LICENSE_HEADER_START@
+ * @APPLE_OSREFERENCE_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 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.
*
- * This Original Code and all software distributed under the License are
- * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
+ * 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,
- * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT. Please see the
- * License for the specific language governing rights and limitations
- * under the License.
+ * 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.
*
- * @APPLE_LICENSE_HEADER_END@
+ * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
*/
/*
* @OSF_COPYRIGHT@
* any improvements or extensions that they make and grant Carnegie Mellon
* the rights to redistribute these changes.
*/
+/*
+ * 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.
+ */
/*
*/
/*
#include <mach_debug.h>
#include <mach_rt.h>
+#include <mach/port.h>
+#include <mach/message.h>
#include <mach/kern_return.h>
+
+#include <kern/kern_types.h>
+#include <kern/kalloc.h>
+#include <kern/simple_lock.h>
#include <kern/mach_param.h>
#include <kern/ipc_host.h>
+#include <kern/ipc_mig.h>
#include <kern/host_notify.h>
#include <kern/mk_timer.h>
#include <kern/misc_protos.h>
+#include <kern/sync_lock.h>
+#include <kern/sync_sema.h>
#include <vm/vm_map.h>
#include <vm/vm_kern.h>
+
#include <ipc/ipc_entry.h>
#include <ipc/ipc_space.h>
#include <ipc/ipc_object.h>
#include <ipc/ipc_kmsg.h>
#include <ipc/ipc_hash.h>
#include <ipc/ipc_init.h>
+#include <ipc/ipc_table.h>
+#include <ipc/ipc_voucher.h>
+#include <ipc/ipc_importance.h>
+
#include <mach/machine/ndr_def.h> /* NDR_record */
vm_map_t ipc_kernel_map;
vm_size_t ipc_kernel_map_size = 1024 * 1024;
+/* values to limit physical copy out-of-line memory descriptors */
vm_map_t ipc_kernel_copy_map;
#define IPC_KERNEL_COPY_MAP_SIZE (8 * 1024 * 1024)
vm_size_t ipc_kernel_copy_map_size = IPC_KERNEL_COPY_MAP_SIZE;
-vm_size_t ipc_kmsg_max_vm_space = (IPC_KERNEL_COPY_MAP_SIZE * 7)/8;
+vm_size_t ipc_kmsg_max_vm_space = ((IPC_KERNEL_COPY_MAP_SIZE * 7) / 8);
+
+/*
+ * values to limit inline message body handling
+ * avoid copyin/out limits - even after accounting for maximum descriptor expansion.
+ */
+#define IPC_KMSG_MAX_SPACE (64 * 1024 * 1024) /* keep in sync with COPYSIZELIMIT_PANIC */
+vm_size_t ipc_kmsg_max_body_space = ((IPC_KMSG_MAX_SPACE * 3)/4 - MAX_TRAILER_SIZE);
+
+int ipc_space_max;
+int ipc_port_max;
+int ipc_pset_max;
-int ipc_space_max = SPACE_MAX;
-int ipc_tree_entry_max = ITE_MAX;
-int ipc_port_max = PORT_MAX;
-int ipc_pset_max = SET_MAX;
-extern void mig_init(void);
+lck_grp_t ipc_lck_grp;
+lck_attr_t ipc_lck_attr;
+
+static lck_grp_attr_t ipc_lck_grp_attr;
+
extern void ikm_cache_init(void);
/*
ipc_bootstrap(void)
{
kern_return_t kr;
-
+
+ lck_grp_attr_setdefault(&ipc_lck_grp_attr);
+ lck_grp_init(&ipc_lck_grp, "ipc", &ipc_lck_grp_attr);
+ lck_attr_setdefault(&ipc_lck_attr);
+
ipc_port_multiple_lock_init();
- ipc_port_timestamp_lock_init();
ipc_port_timestamp_data = 0;
/* all IPC zones should be exhaustible */
ipc_space_max * sizeof(struct ipc_space),
sizeof(struct ipc_space),
"ipc spaces");
-#if 0
- /* make it exhaustible */
- zone_change(ipc_space_zone, Z_EXHAUST, TRUE);
-#endif
-
- ipc_tree_entry_zone =
- zinit(sizeof(struct ipc_tree_entry),
- ipc_tree_entry_max * sizeof(struct ipc_tree_entry),
- sizeof(struct ipc_tree_entry),
- "ipc tree entries");
-#if 0
- /* make it exhaustible */
- zone_change(ipc_tree_entry_zone, Z_EXHAUST, TRUE);
-#endif
+ zone_change(ipc_space_zone, Z_NOENCRYPT, TRUE);
/*
* populate all port(set) zones
ipc_port_max * sizeof(struct ipc_port),
sizeof(struct ipc_port),
"ipc ports");
- /*
- * XXX Can't make the port zone exhaustible because the kernel
- * XXX panics when port allocation for an internal object fails.
- *zone_change(ipc_object_zones[IOT_PORT], Z_EXHAUST, TRUE);
- */
+ /* cant charge callers for port allocations (references passed) */
+ zone_change(ipc_object_zones[IOT_PORT], Z_CALLERACCT, FALSE);
+ zone_change(ipc_object_zones[IOT_PORT], Z_NOENCRYPT, TRUE);
ipc_object_zones[IOT_PORT_SET] =
zinit(sizeof(struct ipc_pset),
ipc_pset_max * sizeof(struct ipc_pset),
sizeof(struct ipc_pset),
"ipc port sets");
- /* make it exhaustible */
- zone_change(ipc_object_zones[IOT_PORT_SET], Z_EXHAUST, TRUE);
+ zone_change(ipc_object_zones[IOT_PORT_SET], Z_NOENCRYPT, TRUE);
+
+ /*
+ * Create the basic ipc_kmsg_t zone (the one we also cache)
+ * elements at the processor-level to avoid the locking.
+ */
+ ipc_kmsg_zone = zinit(IKM_SAVED_KMSG_SIZE,
+ ipc_port_max * MACH_PORT_QLIMIT_DEFAULT *
+ IKM_SAVED_KMSG_SIZE,
+ IKM_SAVED_KMSG_SIZE,
+ "ipc kmsgs");
+ zone_change(ipc_kmsg_zone, Z_CALLERACCT, FALSE);
/* create special spaces */
#endif
mig_init();
ipc_table_init();
- ipc_hash_init();
- ipc_kmsg_init();
+ ipc_voucher_init();
+
+#if IMPORTANCE_INHERITANCE
+ ipc_importance_init();
+#endif
+
semaphore_init();
- lock_set_init();
mk_timer_init();
host_notify_init();
}
/*
* XXX tunable, belongs in mach.message.h
*/
-#define MSG_OOL_SIZE_SMALL_MAX 4096
+#define MSG_OOL_SIZE_SMALL_MAX (2*PAGE_SIZE)
vm_size_t msg_ool_size_small;
/*
ipc_init(void)
{
kern_return_t retval;
- vm_offset_t min, max;
- extern vm_size_t kalloc_max_prerounded;
+ vm_offset_t min;
retval = kmem_suballoc(kernel_map, &min, ipc_kernel_map_size,
- TRUE, TRUE, &ipc_kernel_map);
+ TRUE, VM_FLAGS_ANYWHERE | VM_MAKE_TAG(VM_KERN_MEMORY_IPC), &ipc_kernel_map);
+
if (retval != KERN_SUCCESS)
panic("ipc_init: kmem_suballoc of ipc_kernel_map failed");
retval = kmem_suballoc(kernel_map, &min, ipc_kernel_copy_map_size,
- TRUE, TRUE, &ipc_kernel_copy_map);
+ TRUE, VM_FLAGS_ANYWHERE | VM_MAKE_TAG(VM_KERN_MEMORY_IPC), &ipc_kernel_copy_map);
+
if (retval != KERN_SUCCESS)
panic("ipc_init: kmem_suballoc of ipc_kernel_copy_map failed");
else {
msg_ool_size_small = MSG_OOL_SIZE_SMALL_MAX;
}
+ /* account for overhead to avoid spilling over a page */
+ msg_ool_size_small -= cpy_kdata_hdr_sz;
ipc_host_init();
+
+}
+
+
+/*
+ * Routine: ipc_thread_call_init
+ * Purpose:
+ * Initialize IPC logic that needs thread call support
+ */
+
+void
+ipc_thread_call_init(void)
+{
+#if IMPORTANCE_INHERITANCE
+ ipc_importance_thread_call_init();
+#endif
}
projects / apple / xnu.git / blobdiff