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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 | /* * Copyright (c) 2003-2005 Apple Computer, 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 * 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@ */ #include <stdint.h> #include <mach/boolean.h> #include <mach/mach_types.h> #include <sys/syscall.h> #include <sys/types.h> /* u_int */ #include <sys/proc.h> /* struct proc */ #include <sys/systm.h> /* struct sysent */ #include <sys/sysproto.h> #pragma mark **** kern debug **** typedef void (*chudxnu_kdebug_callback_func_t)(uint32_t debugid, uint32_t arg0, uint32_t arg1, uint32_t arg2, uint32_t arg3, uint32_t arg4); static chudxnu_kdebug_callback_func_t kdebug_callback_fn = NULL; kern_return_t chudxnu_kdebug_callback_enter(chudxnu_kdebug_callback_func_t); kern_return_t chudxnu_kdebug_callback_cancel(void); extern void kdbg_control_chud(int val, void *fn); extern unsigned int kdebug_enable; static void chudxnu_private_kdebug_callback( unsigned int debugid, unsigned int arg0, unsigned int arg1, unsigned int arg2, unsigned int arg3, unsigned int arg4) { chudxnu_kdebug_callback_func_t fn = kdebug_callback_fn; if(fn) { (fn)(debugid, arg0, arg1, arg2, arg3, arg4); } } __private_extern__ kern_return_t chudxnu_kdebug_callback_enter(chudxnu_kdebug_callback_func_t func) { kdebug_callback_fn = func; kdbg_control_chud(TRUE, (void *)chudxnu_private_kdebug_callback); kdebug_enable |= 0x10; return KERN_SUCCESS; } __private_extern__ kern_return_t chudxnu_kdebug_callback_cancel(void) { kdebug_callback_fn = NULL; kdbg_control_chud(FALSE, NULL); kdebug_enable &= ~(0x10); return KERN_SUCCESS; } #pragma mark **** CHUD syscall **** typedef kern_return_t (*chudxnu_syscall_callback_func_t)(uint32_t code, uint32_t arg0, uint32_t arg1, uint32_t arg2, uint32_t arg3, uint32_t arg4); static chudxnu_syscall_callback_func_t syscall_callback_fn = NULL; kern_return_t chudxnu_syscall_callback_enter(chudxnu_syscall_callback_func_t func); kern_return_t chudxnu_syscall_callback_cancel(void); int chud(p, uap, retval) struct proc *p; struct chud_args *uap; register_t *retval; { #pragma unused (p) chudxnu_syscall_callback_func_t fn = syscall_callback_fn; if(!fn) { return EINVAL; } *retval = fn(uap->code, uap->arg1, uap->arg2, uap->arg3, uap->arg4, uap->arg5); return 0; } __private_extern__ kern_return_t chudxnu_syscall_callback_enter(chudxnu_syscall_callback_func_t func) { syscall_callback_fn = func; return KERN_SUCCESS; } __private_extern__ kern_return_t chudxnu_syscall_callback_cancel(void) { syscall_callback_fn = NULL; return KERN_SUCCESS; } |