capability.h
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上传日期:2007-01-04
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文件大小:3k
- /*
- * <sys/capability.h>
- *
- *
- * Copyright (C) 1997 Aleph One
- * Copyright (C) 1997-8 Andrew G. Morgan <morgan@linux.kernel.org>
- *
- * defunct POSIX.1e Standard: 25.2 Capabilities <sys/capability.h>
- */
- #ifndef _SYS_CAPABILITY_H
- #define _SYS_CAPABILITY_H
- #ifdef __cplusplus
- extern "C" {
- #endif
- /*
- * This file complements the kernel file by providing prototype
- * information for the user library.
- */
- #include <linux/capability.h>
- /*
- * POSIX capability types
- */
- /*
- * Opaque capability handle (defined internally by libcap)
- * internal capability representation
- */
- typedef struct _cap_struct *cap_t;
- /* "external" capability representation is a (void *) */
- /*
- * This is the type used to identify capabilities
- */
- typedef int cap_value_t;
- /*
- * Set identifiers
- */
- typedef enum {
- CAP_EFFECTIVE=0, /* Specifies the effective flag */
- CAP_PERMITTED=1, /* Specifies the permitted flag */
- CAP_INHERITABLE=2 /* Specifies the inheritable flag */
- } cap_flag_t;
- /*
- * These are the states available to each capability
- */
- typedef enum {
- CAP_CLEAR=0, /* The flag is cleared/disabled */
- CAP_SET=1 /* The flag is set/enabled */
- } cap_flag_value_t;
- /*
- * User-space capability manipulation routines
- */
- /* libcap/cap_alloc.c */
- cap_t cap_dup(cap_t);
- int cap_free(cap_t *);
- cap_t cap_init(void);
- /* libcap/cap_flag.c */
- int cap_get_flag(cap_t, cap_value_t, cap_flag_t, cap_flag_value_t *);
- int cap_set_flag(cap_t, cap_flag_t, int, cap_value_t *, cap_flag_value_t);
- int cap_clear(cap_t);
- /* libcap/cap_file.c */
- cap_t cap_get_fd(int);
- cap_t cap_get_file(const char *);
- int cap_set_fd(int, cap_t);
- int cap_set_file(const char *, cap_t);
- /* libcap/cap_proc.c */
- cap_t cap_get_proc(void);
- int cap_set_proc(cap_t);
- /* libcap/cap_extint.c */
- ssize_t cap_size(cap_t);
- ssize_t cap_copy_ext(void *, cap_t, ssize_t);
- cap_t cap_copy_int(const void *);
- /* libcap/cap_text.c */
- cap_t cap_from_text(const char *);
- char * cap_to_text(cap_t, ssize_t *);
- /*
- * Linux capability system calls: defined in libcap but only available
- * if the following _POSIX_SOURCE is _undefined_
- */
- #if !defined(_POSIX_SOURCE)
- extern int capset(cap_user_header_t header, cap_user_data_t data);
- extern int capget(cap_user_header_t header, const cap_user_data_t data);
- extern int capgetp(pid_t pid, cap_t cap_d);
- extern int capsetp(pid_t pid, cap_t cap_d);
- extern char const *_cap_names[];
- #endif /* !defined(_POSIX_SOURCE) */
- #ifdef __cplusplus
- }
- #endif
- #endif /* _SYS_CAPABILITY_H */