1 /* 2 * Copyright (c) 2010-2014 Apple Inc. All rights reserved. 3 * 4 * @APPLE_OSREFERENCE_LICENSE_HEADER_START@ 5 * 6 * This file contains Original Code and/or Modifications of Original Code 7 * as defined in and that are subject to the Apple Public Source License 8 * Version 2.0 (the 'License'). You may not use this file except in 9 * compliance with the License. The rights granted to you under the License 10 * may not be used to create, or enable the creation or redistribution of, 11 * unlawful or unlicensed copies of an Apple operating system, or to 12 * circumvent, violate, or enable the circumvention or violation of, any 13 * terms of an Apple operating system software license agreement. 14 * 15 * Please obtain a copy of the License at 16 * http://www.opensource.apple.com/apsl/ and read it before using this file. 17 * 18 * The Original Code and all software distributed under the License are 19 * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER 20 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, 21 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, 22 * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. 23 * Please see the License for the specific language governing rights and 24 * limitations under the License. 25 * 26 * @APPLE_OSREFERENCE_LICENSE_HEADER_END@ 27 */ 28 29 #ifndef __LIBKERNEL_INIT_H 30 #define __LIBKERNEL_INIT_H 31 32 #include <stdbool.h> 33 #include <sys/types.h> 34 #include <mach/mach.h> 35 #include <mach/message.h> 36 #include <mach/mach_types.h> 37 38 #ifndef __OS_VOUCHER_PRIVATE__ 39 // We cannot include the actual os/voucher_private.h definition of voucher_t 40 // here, as that also marks the voucher_XXX functions as exported, which causes 41 // a compile error when we attempt to mark them hidden in the .c file. 42 // 43 // The Libsystem init.c file does include os/voucher_private.h though, as well 44 // as this file, and this typedef causes an error if it is unguarded. 45 struct voucher_s; 46 typedef struct voucher_s *voucher_t; 47 #endif 48 49 typedef const struct _libkernel_functions { 50 /* The following functions are included in version 1 of this structure */ 51 unsigned long version; 52 void* (*dlsym)(void*, const char*); 53 void* (*malloc)(size_t); 54 void (*free)(void*); 55 void* (*realloc)(void*, size_t); 56 void (*_pthread_exit_if_canceled)(int); 57 58 /* The following functions are included in version 2 of this structure */ 59 void *reserved1; 60 void *reserved2; 61 void *reserved3; 62 void *reserved4; 63 void *reserved5; 64 65 /* The following functions are included in version 3 of this structure */ 66 void (*pthread_clear_qos_tsd)(mach_port_t); 67 68 /* The following functions are included in version 4 of this structure */ 69 int (*pthread_current_stack_contains_np)(const void *, size_t); 70 71 /* Subsequent versions must only add pointers! */ 72 } *_libkernel_functions_t; 73 74 typedef const struct _libkernel_string_functions { 75 /* The following functions are included in version 1 of this structure */ 76 unsigned long version; 77 void (*bzero)(void *s, size_t n); 78 void * (*memchr)(const void *s, int c, size_t n); 79 int (*memcmp)(const void *s1, const void *s2, size_t n); 80 void * (*memmove)(void *dst, const void *src, size_t n); 81 void * (*memccpy)(void *__restrict dst, const void *__restrict src, int c, size_t n); 82 void * (*memset)(void *b, int c, size_t len); 83 char * (*strchr)(const char *s, int c); 84 int (*strcmp)(const char *s1, const char *s2); 85 char * (*strcpy)(char * restrict dst, const char * restrict src); 86 size_t (*strlcat)(char * restrict dst, const char * restrict src, size_t maxlen); 87 size_t (*strlcpy)(char * restrict dst, const char * restrict src, size_t maxlen); 88 size_t (*strlen)(const char *str); 89 int (*strncmp)(const char *s1, const char *s2, size_t n); 90 char * (*strncpy)(char * restrict dst, const char * restrict src, size_t maxlen); 91 size_t (*strnlen)(const char *s, size_t maxlen); 92 char * (*strstr)(const char *s, const char *find); 93 /* Subsequent versions must only add pointers! */ 94 } *_libkernel_string_functions_t; 95 96 typedef const struct _libkernel_voucher_functions { 97 /* The following functions are included in version 1 of this structure */ 98 unsigned long version; 99 boolean_t (*voucher_mach_msg_set)(mach_msg_header_t*); 100 void (*voucher_mach_msg_clear)(mach_msg_header_t*); 101 voucher_mach_msg_state_t (*voucher_mach_msg_adopt)(mach_msg_header_t*); 102 void (*voucher_mach_msg_revert)(voucher_mach_msg_state_t); 103 104 /* Subsequent versions must only add pointers! */ 105 } *_libkernel_voucher_functions_t; 106 107 typedef struct _libkernel_late_init_config { 108 unsigned long version; 109 110 /* Version 1 fields */ 111 bool enable_system_version_compat; 112 113 /* Version 2 fields */ 114 bool enable_ios_version_compat; 115 116 /* Version 3 fields */ 117 bool enable_posix_spawn_filtering; 118 } *_libkernel_late_init_config_t; 119 120 struct ProgramVars; /* forward reference */ 121 122 void __libkernel_init(_libkernel_functions_t fns, const char *envp[], 123 const char *apple[], const struct ProgramVars *vars); 124 125 kern_return_t __libkernel_platform_init(_libkernel_string_functions_t fns); 126 127 kern_return_t __libkernel_voucher_init(_libkernel_voucher_functions_t fns); 128 129 void __libkernel_init_late(_libkernel_late_init_config_t config); 130 131 typedef struct _libkernel_init_after_boot_tasks_config { 132 unsigned long version; 133 134 /* Version 1 fields */ 135 bool enable_posix_spawn_filtering; 136 } *_libkernel_init_after_boot_tasks_config_t; 137 138 void __libkernel_init_after_boot_tasks( 139 _libkernel_init_after_boot_tasks_config_t config); 140 141 #endif // __LIBKERNEL_INIT_H 142