X-Git-Url: https://git.saurik.com/apple/xnu.git/blobdiff_plain/1c79356b52d46aa6b508fb032f5ae709b1f2897b..b0d623f7f2ae71ed96e60569f61f9a9a27016e80:/osfmk/ipc/ipc_space.h diff --git a/osfmk/ipc/ipc_space.h b/osfmk/ipc/ipc_space.h index 33431cf9b..39c2e45a4 100644 --- a/osfmk/ipc/ipc_space.h +++ b/osfmk/ipc/ipc_space.h @@ -1,23 +1,29 @@ /* - * Copyright (c) 2000 Apple Computer, Inc. All rights reserved. + * Copyright (c) 2000-2004 Apple Computer, 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@ @@ -47,6 +53,12 @@ * 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. + */ /* */ /* @@ -66,9 +78,13 @@ #include #include -#ifdef MACH_KERNEL_PRIVATE +#include + +#ifdef __APPLE_API_PRIVATE +#if MACH_KERNEL_PRIVATE #include #include +#include #include #include #include @@ -95,10 +111,10 @@ typedef natural_t ipc_space_refs_t; struct ipc_space { - decl_mutex_data(,is_ref_lock_data) + decl_lck_mtx_data(,is_ref_lock_data) ipc_space_refs_t is_references; - decl_mutex_data(,is_lock_data) + decl_lck_mtx_data(,is_lock_data) boolean_t is_active; /* is the space alive? */ boolean_t is_growing; /* is the space growing? */ ipc_entry_t is_table; /* an array of entries */ @@ -109,6 +125,8 @@ struct ipc_space { ipc_entry_num_t is_tree_small; /* # of small entries in the tree */ ipc_entry_num_t is_tree_hash; /* # of hashed entries in the tree */ boolean_t is_fast; /* for is_fast_space() */ + + task_t is_task; /* associated task */ }; #define IS_NULL ((ipc_space_t) 0) @@ -116,7 +134,7 @@ struct ipc_space { extern zone_t ipc_space_zone; #define is_alloc() ((ipc_space_t) zalloc(ipc_space_zone)) -#define is_free(is) zfree(ipc_space_zone, (vm_offset_t) (is)) +#define is_free(is) zfree(ipc_space_zone, (is)) extern ipc_space_t ipc_space_kernel; extern ipc_space_t ipc_space_reply; @@ -129,38 +147,50 @@ extern ipc_space_t default_pager_space; #define is_fast_space(is) ((is)->is_fast) -#define is_ref_lock_init(is) mutex_init(&(is)->is_ref_lock_data, \ - ETAP_IPC_IS_REF) +#define is_ref_lock_init(is) lck_mtx_init(&(is)->is_ref_lock_data, &ipc_lck_grp, &ipc_lck_attr) +#define is_ref_lock_destroy(is) lck_mtx_destroy(&(is)->is_ref_lock_data, &ipc_lck_grp) #define ipc_space_reference_macro(is) \ MACRO_BEGIN \ - mutex_lock(&(is)->is_ref_lock_data); \ + lck_mtx_lock(&(is)->is_ref_lock_data); \ assert((is)->is_references > 0); \ (is)->is_references++; \ - mutex_unlock(&(is)->is_ref_lock_data); \ + lck_mtx_unlock(&(is)->is_ref_lock_data); \ MACRO_END #define ipc_space_release_macro(is) \ MACRO_BEGIN \ ipc_space_refs_t _refs; \ \ - mutex_lock(&(is)->is_ref_lock_data); \ + lck_mtx_lock(&(is)->is_ref_lock_data); \ assert((is)->is_references > 0); \ _refs = --(is)->is_references; \ - mutex_unlock(&(is)->is_ref_lock_data); \ + lck_mtx_unlock(&(is)->is_ref_lock_data); \ \ - if (_refs == 0) \ + if (_refs == 0) { \ + is_lock_destroy(is); \ + is_ref_lock_destroy(is); \ is_free(is); \ + } \ MACRO_END -#define is_lock_init(is) mutex_init(&(is)->is_lock_data, ETAP_IPC_IS) +#define is_lock_init(is) lck_mtx_init(&(is)->is_lock_data, &ipc_lck_grp, &ipc_lck_attr) +#define is_lock_destroy(is) lck_mtx_destroy(&(is)->is_lock_data, &ipc_lck_grp) -#define is_read_lock(is) mutex_lock(&(is)->is_lock_data) -#define is_read_unlock(is) mutex_unlock(&(is)->is_lock_data) +#define is_read_lock(is) lck_mtx_lock(&(is)->is_lock_data) +#define is_read_unlock(is) lck_mtx_unlock(&(is)->is_lock_data) +#define is_read_sleep(is) lck_mtx_sleep(&(is)->is_lock_data, \ + LCK_SLEEP_DEFAULT, \ + (event_t)(is), \ + THREAD_UNINT) -#define is_write_lock(is) mutex_lock(&(is)->is_lock_data) -#define is_write_lock_try(is) mutex_try(&(is)->is_lock_data) -#define is_write_unlock(is) mutex_unlock(&(is)->is_lock_data) +#define is_write_lock(is) lck_mtx_lock(&(is)->is_lock_data) +#define is_write_lock_try(is) lck_mtx_try_lock(&(is)->is_lock_data) +#define is_write_unlock(is) lck_mtx_unlock(&(is)->is_lock_data) +#define is_write_sleep(is) lck_mtx_sleep(&(is)->is_lock_data, \ + LCK_SLEEP_DEFAULT, \ + (event_t)(is), \ + THREAD_UNINT) #define is_reference(is) ipc_space_reference(is) #define is_release(is) ipc_space_release(is) @@ -170,11 +200,33 @@ MACRO_END #define current_space_fast() (current_task_fast()->itk_space) #define current_space() (current_space_fast()) -#else /* !MACH_KERNEL_PRIVATE */ +/* Create a special IPC space */ +extern kern_return_t ipc_space_create_special( + ipc_space_t *spacep); -extern ipc_space_t current_space(void); +/* Create new IPC space */ +extern kern_return_t ipc_space_create( + ipc_table_size_t initial, + ipc_space_t *spacep); + +/* Mark a space as dead and cleans up the entries*/ +extern void ipc_space_destroy( + ipc_space_t space); + +/* Clean up the entries - but leave the space alive */ +extern void ipc_space_clean( + ipc_space_t space); #endif /* MACH_KERNEL_PRIVATE */ +#endif /* __APPLE_API_PRIVATE */ + +#ifdef __APPLE_API_UNSTABLE +#ifndef MACH_KERNEL_PRIVATE + +extern ipc_space_t current_space(void); + +#endif /* !MACH_KERNEL_PRIVATE */ +#endif /* __APPLE_API_UNSTABLE */ /* Take a reference on a space */ extern void ipc_space_reference( @@ -184,18 +236,4 @@ extern void ipc_space_reference( extern void ipc_space_release( ipc_space_t space); - -/* Create new IPC space */ -extern kern_return_t ipc_space_create( - ipc_table_size_t initial, - ipc_space_t *spacep); - -/* Create a special IPC space */ -extern kern_return_t ipc_space_create_special( - ipc_space_t *spacep); - -/* Mark a space as dead and cleans up the entries*/ -extern void ipc_space_destroy( - ipc_space_t space); - #endif /* _IPC_IPC_SPACE_H_ */