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63 lines
1.7 KiB
C
63 lines
1.7 KiB
C
/* Tunable type information.
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Copyright (C) 2016-2018 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, see
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<http://www.gnu.org/licenses/>. */
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#ifndef _TUNABLE_TYPES_H_
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# define _TUNABLE_TYPES_H_
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#include <stddef.h>
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typedef enum
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{
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TUNABLE_TYPE_INT_32,
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TUNABLE_TYPE_UINT_64,
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TUNABLE_TYPE_SIZE_T,
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TUNABLE_TYPE_STRING
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} tunable_type_code_t;
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typedef struct
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{
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tunable_type_code_t type_code;
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int64_t min;
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int64_t max;
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} tunable_type_t;
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typedef union
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{
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int64_t numval;
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const char *strval;
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} tunable_val_t;
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typedef void (*tunable_callback_t) (tunable_val_t *);
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/* Security level for tunables. This decides what to do with individual
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tunables for AT_SECURE binaries. */
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typedef enum
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{
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/* Erase the tunable for AT_SECURE binaries so that child processes don't
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read it. */
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TUNABLE_SECLEVEL_SXID_ERASE = 0,
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/* Ignore the tunable for AT_SECURE binaries, but don't erase it, so that
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child processes can read it. */
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TUNABLE_SECLEVEL_SXID_IGNORE = 1,
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/* Read the tunable. */
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TUNABLE_SECLEVEL_NONE = 2,
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} tunable_seclevel_t;
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#endif
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