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129 lines
3.3 KiB
C
129 lines
3.3 KiB
C
8 years ago
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/*
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* <sys/capability.h>
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*
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* Copyright (C) 1997 Aleph One
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* Copyright (C) 1997-8,2008 Andrew G. Morgan <morgan@kernel.org>
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*
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* defunct POSIX.1e Standard: 25.2 Capabilities <sys/capability.h>
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*/
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#ifndef _SYS_CAPABILITY_H
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#define _SYS_CAPABILITY_H
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#ifdef __cplusplus
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extern "C" {
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#endif
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/*
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* This file complements the kernel file by providing prototype
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* information for the user library.
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*/
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#include <sys/types.h>
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#include <stdint.h>
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#include <linux/types.h>
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#ifndef __user
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#define __user
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#endif
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#include <linux/capability.h>
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#include <sys/xattr.h>
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#include <linux/xattr.h>
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/*
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* POSIX capability types
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*/
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/*
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* Opaque capability handle (defined internally by libcap)
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* internal capability representation
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*/
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typedef struct _cap_struct *cap_t;
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/* "external" capability representation is a (void *) */
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/*
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* This is the type used to identify capabilities
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*/
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typedef int cap_value_t;
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/*
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* Set identifiers
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*/
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typedef enum {
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CAP_EFFECTIVE=0, /* Specifies the effective flag */
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CAP_PERMITTED=1, /* Specifies the permitted flag */
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CAP_INHERITABLE=2 /* Specifies the inheritable flag */
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} cap_flag_t;
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/*
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* These are the states available to each capability
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*/
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typedef enum {
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CAP_CLEAR=0, /* The flag is cleared/disabled */
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CAP_SET=1 /* The flag is set/enabled */
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} cap_flag_value_t;
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/*
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* User-space capability manipulation routines
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*/
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/* libcap/cap_alloc.c */
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extern cap_t cap_dup(cap_t);
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extern int cap_free(void *);
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extern cap_t cap_init(void);
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/* libcap/cap_flag.c */
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extern int cap_get_flag(cap_t, cap_value_t, cap_flag_t, cap_flag_value_t *);
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extern int cap_set_flag(cap_t, cap_flag_t, int, const cap_value_t *,
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cap_flag_value_t);
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extern int cap_clear(cap_t);
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extern int cap_clear_flag(cap_t, cap_flag_t);
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/* libcap/cap_file.c */
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extern cap_t cap_get_fd(int);
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extern cap_t cap_get_file(const char *);
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extern int cap_set_fd(int, cap_t);
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extern int cap_set_file(const char *, cap_t);
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/* libcap/cap_proc.c */
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extern cap_t cap_get_proc(void);
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extern cap_t cap_get_pid(pid_t);
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extern int cap_set_proc(cap_t);
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extern int cap_get_bound(cap_value_t);
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extern int cap_drop_bound(cap_value_t);
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#define CAP_IS_SUPPORTED(cap) (cap_get_bound(cap) >= 0)
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/* libcap/cap_extint.c */
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extern ssize_t cap_size(cap_t);
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extern ssize_t cap_copy_ext(void *, cap_t, ssize_t);
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extern cap_t cap_copy_int(const void *);
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/* libcap/cap_text.c */
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extern cap_t cap_from_text(const char *);
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extern char * cap_to_text(cap_t, ssize_t *);
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extern int cap_from_name(const char *, cap_value_t *);
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extern char * cap_to_name(cap_value_t);
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#define CAP_DIFFERS(result, flag) (((result) & (1 << (flag))) != 0)
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extern int cap_compare(cap_t, cap_t);
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/* system calls - look to libc for function to system call mapping */
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extern int capset(cap_user_header_t header, cap_user_data_t data);
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extern int capget(cap_user_header_t header, const cap_user_data_t data);
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/* deprecated - use cap_get_pid() */
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extern int capgetp(pid_t pid, cap_t cap_d);
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/* not valid with filesystem capability support - use cap_set_proc() */
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extern int capsetp(pid_t pid, cap_t cap_d);
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#ifdef __cplusplus
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}
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#endif
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#endif /* _SYS_CAPABILITY_H */
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