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