mirror of
https://github.com/darlinghq/darling-xnu.git
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68 lines
2.2 KiB
C
68 lines
2.2 KiB
C
/*
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* Copyright (c) 2013 Apple Inc. All rights reserved.
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*
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* @APPLE_OSREFERENCE_LICENSE_HEADER_START@
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*
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* This file contains Original Code and/or Modifications of Original Code
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* as defined in and that are subject to the Apple Public Source License
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* Version 2.0 (the 'License'). You may not use this file except in
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* compliance with the License. The rights granted to you under the License
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* may not be used to create, or enable the creation or redistribution of,
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* unlawful or unlicensed copies of an Apple operating system, or to
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* circumvent, violate, or enable the circumvention or violation of, any
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* terms of an Apple operating system software license agreement.
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*
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* Please obtain a copy of the License at
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* http://www.opensource.apple.com/apsl/ and read it before using this file.
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*
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* The Original Code and all software distributed under the License are
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* distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
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* EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
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* INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
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* Please see the License for the specific language governing rights and
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* limitations under the License.
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*
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* @APPLE_OSREFERENCE_LICENSE_HEADER_END@
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*/
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#include <kern/debug.h>
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#include <sys/param.h>
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#include <sys/mman.h>
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#include <sys/stat.h>
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#include <sys/sysctl.h>
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#include <sys/priv.h>
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#include <mach/machine.h>
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#include <libkern/libkern.h>
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#include <kern/assert.h>
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#include <pexpert/pexpert.h>
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#include <kern/ecc.h>
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static int
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get_ecc_data_handler(__unused struct sysctl_oid *oidp, __unused void *arg1, __unused int arg2,
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struct sysctl_req *req)
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{
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struct ecc_event ev;
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int changed, retval;
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if (priv_check_cred(kauth_cred_get(), PRIV_HW_DEBUG_DATA, 0) != 0) {
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return EPERM;
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}
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if (KERN_SUCCESS != ecc_log_get_next_event(&ev)) {
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/*
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* EAGAIN would be better, but sysctl infrastructure
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* interprets that */
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return EBUSY;
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}
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retval = sysctl_io_opaque(req, &ev, sizeof(ev), &changed);
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assert(!changed);
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return retval;
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}
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SYSCTL_PROC(_kern, OID_AUTO, next_ecc_event,
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CTLFLAG_RD | CTLFLAG_ANYBODY | CTLFLAG_MASKED | CTLTYPE_STRUCT,
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0, 0, get_ecc_data_handler,
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"-", "");
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