diff options
Diffstat (limited to 'elf/dl-tunable-types.h')
| -rw-r--r-- | elf/dl-tunable-types.h | 42 |
1 files changed, 32 insertions, 10 deletions
diff --git a/elf/dl-tunable-types.h b/elf/dl-tunable-types.h index 8f6a383dcc..05d4958e1c 100644 --- a/elf/dl-tunable-types.h +++ b/elf/dl-tunable-types.h @@ -1,4 +1,4 @@ -/* Tunable type information. +/* Internal representation of tunables. Copyright (C) 2016-2021 Free Software Foundation, Inc. This file is part of the GNU C Library. @@ -18,8 +18,14 @@ <https://www.gnu.org/licenses/>. */ #ifndef _TUNABLE_TYPES_H_ -# define _TUNABLE_TYPES_H_ +#define _TUNABLE_TYPES_H_ + +/* Note: This header is included in the generated dl-tunables-list.h and + only used internally in the tunables implementation in dl-tunables.c. */ + +#include <stdbool.h> #include <stddef.h> +#include <stdint.h> typedef enum { @@ -36,14 +42,6 @@ typedef struct 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 @@ -58,5 +56,29 @@ typedef enum TUNABLE_SECLEVEL_NONE = 2, } tunable_seclevel_t; +/* A tunable. */ +struct _tunable +{ + const char *name; /* Internal name of the tunable. */ + tunable_type_t type; /* Data type of the tunable. */ + tunable_val_t val; /* The value. */ + bool initialized; /* Flag to indicate that the tunable is + initialized. */ + tunable_seclevel_t security_level; /* Specify the security level for the + tunable with respect to AT_SECURE + programs. See description of + tunable_seclevel_t to see a + description of the values. + + Note that even if the tunable is + read, it may not get used by the + target module if the value is + considered unsafe. */ + /* Compatibility elements. */ + const char *env_alias; /* The compatibility environment + variable name. */ +}; + +typedef struct _tunable tunable_t; #endif |