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- #ifndef _LINUX_SECUREBITS_H
- #define _LINUX_SECUREBITS_H 1
-
- #define SECUREBITS_DEFAULT 0x00000000
-
- extern unsigned securebits;
-
- /* When set UID 0 has no special privileges. When unset, we support
- inheritance of root-permissions and suid-root executable under
- compatibility mode. We raise the effective and inheritable bitmasks
- *of the executable file* if the effective uid of the new process is
- 0. If the real uid is 0, we raise the inheritable bitmask of the
- executable file. */
- #define SECURE_NOROOT 0
-
- /* When set, setuid to/from uid 0 does not trigger capability-"fixes"
- to be compatible with old programs relying on set*uid to loose
- privileges. When unset, setuid doesn't change privileges. */
- #define SECURE_NO_SETUID_FIXUP 2
-
- /* Each securesetting is implemented using two bits. One bit specify
- whether the setting is on or off. The other bit specify whether the
- setting is fixed or not. A setting which is fixed cannot be changed
- from user-level. */
-
- #define issecure(X) ( (1 << (X+1)) & SECUREBITS_DEFAULT ? \
- (1 << (X)) & SECUREBITS_DEFAULT : \
- (1 << (X)) & securebits )
-
- #endif /* !_LINUX_SECUREBITS_H */
-