| /* |
| * <sys/capability.h> |
| * |
| * Copyright (C) 1997 Aleph One |
| * Copyright (C) 1997-8,2008 Andrew G. Morgan <morgan@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 <sys/types.h> |
| #include <stdint.h> |
| #include <linux/types.h> |
| |
| /* |
| * Required to limit what gets defined in the kernel header file. |
| */ |
| #ifndef __user |
| #define __user |
| #endif |
| #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 */ |
| extern cap_t cap_dup(cap_t); |
| extern int cap_free(void *); |
| extern cap_t cap_init(void); |
| |
| /* libcap/cap_flag.c */ |
| extern int cap_get_flag(cap_t, cap_value_t, cap_flag_t, cap_flag_value_t *); |
| extern int cap_set_flag(cap_t, cap_flag_t, int, const cap_value_t *, |
| cap_flag_value_t); |
| extern int cap_clear(cap_t); |
| extern int cap_clear_flag(cap_t, cap_flag_t); |
| |
| /* libcap/cap_file.c */ |
| extern cap_t cap_get_fd(int); |
| extern cap_t cap_get_file(const char *); |
| extern int cap_set_fd(int, cap_t); |
| extern int cap_set_file(const char *, cap_t); |
| |
| /* libcap/cap_proc.c */ |
| extern cap_t cap_get_proc(void); |
| extern cap_t cap_get_pid(pid_t); |
| extern int cap_set_proc(cap_t); |
| |
| extern int cap_get_bound(cap_value_t); |
| extern int cap_drop_bound(cap_value_t); |
| |
| #define CAP_IS_SUPPORTED(cap) (cap_get_bound(cap) >= 0) |
| |
| /* libcap/cap_extint.c */ |
| extern ssize_t cap_size(cap_t); |
| extern ssize_t cap_copy_ext(void *, cap_t, ssize_t); |
| extern cap_t cap_copy_int(const void *); |
| |
| /* libcap/cap_text.c */ |
| extern cap_t cap_from_text(const char *); |
| extern char * cap_to_text(cap_t, ssize_t *); |
| extern int cap_from_name(const char *, cap_value_t *); |
| extern char * cap_to_name(cap_value_t); |
| |
| #define CAP_DIFFERS(result, flag) (((result) & (1 << (flag))) != 0) |
| extern int cap_compare(cap_t, cap_t); |
| |
| /* system calls - look to libc for function to system call mapping */ |
| 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); |
| |
| /* deprecated - use cap_get_pid() */ |
| extern int capgetp(pid_t pid, cap_t cap_d); |
| |
| /* not valid with filesystem capability support - use cap_set_proc() */ |
| extern int capsetp(pid_t pid, cap_t cap_d); |
| |
| #ifdef __cplusplus |
| } |
| #endif |
| |
| #endif /* _SYS_CAPABILITY_H */ |
