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      1 #ifndef _UAPI_LINUX_PERSONALITY_H
      2 #define _UAPI_LINUX_PERSONALITY_H
      3 
      4 
      5 /*
      6  * Flags for bug emulation.
      7  *
      8  * These occupy the top three bytes.
      9  */
     10 enum {
     11 	UNAME26	=               0x0020000,
     12 	ADDR_NO_RANDOMIZE = 	0x0040000,	/* disable randomization of VA space */
     13 	FDPIC_FUNCPTRS =	0x0080000,	/* userspace function ptrs point to descriptors
     14 						 * (signal handling)
     15 						 */
     16 	MMAP_PAGE_ZERO =	0x0100000,
     17 	ADDR_COMPAT_LAYOUT =	0x0200000,
     18 	READ_IMPLIES_EXEC =	0x0400000,
     19 	ADDR_LIMIT_32BIT =	0x0800000,
     20 	SHORT_INODE =		0x1000000,
     21 	WHOLE_SECONDS =		0x2000000,
     22 	STICKY_TIMEOUTS	=	0x4000000,
     23 	ADDR_LIMIT_3GB = 	0x8000000,
     24 };
     25 
     26 /*
     27  * Security-relevant compatibility flags that must be
     28  * cleared upon setuid or setgid exec:
     29  */
     30 #define PER_CLEAR_ON_SETID (READ_IMPLIES_EXEC  | \
     31 			    ADDR_NO_RANDOMIZE  | \
     32 			    ADDR_COMPAT_LAYOUT | \
     33 			    MMAP_PAGE_ZERO)
     34 
     35 /*
     36  * Personality types.
     37  *
     38  * These go in the low byte.  Avoid using the top bit, it will
     39  * conflict with error returns.
     40  */
     41 enum {
     42 	PER_LINUX =		0x0000,
     43 	PER_LINUX_32BIT =	0x0000 | ADDR_LIMIT_32BIT,
     44 	PER_LINUX_FDPIC =	0x0000 | FDPIC_FUNCPTRS,
     45 	PER_SVR4 =		0x0001 | STICKY_TIMEOUTS | MMAP_PAGE_ZERO,
     46 	PER_SVR3 =		0x0002 | STICKY_TIMEOUTS | SHORT_INODE,
     47 	PER_SCOSVR3 =		0x0003 | STICKY_TIMEOUTS |
     48 					 WHOLE_SECONDS | SHORT_INODE,
     49 	PER_OSR5 =		0x0003 | STICKY_TIMEOUTS | WHOLE_SECONDS,
     50 	PER_WYSEV386 =		0x0004 | STICKY_TIMEOUTS | SHORT_INODE,
     51 	PER_ISCR4 =		0x0005 | STICKY_TIMEOUTS,
     52 	PER_BSD =		0x0006,
     53 	PER_SUNOS =		0x0006 | STICKY_TIMEOUTS,
     54 	PER_XENIX =		0x0007 | STICKY_TIMEOUTS | SHORT_INODE,
     55 	PER_LINUX32 =		0x0008,
     56 	PER_LINUX32_3GB =	0x0008 | ADDR_LIMIT_3GB,
     57 	PER_IRIX32 =		0x0009 | STICKY_TIMEOUTS,/* IRIX5 32-bit */
     58 	PER_IRIXN32 =		0x000a | STICKY_TIMEOUTS,/* IRIX6 new 32-bit */
     59 	PER_IRIX64 =		0x000b | STICKY_TIMEOUTS,/* IRIX6 64-bit */
     60 	PER_RISCOS =		0x000c,
     61 	PER_SOLARIS =		0x000d | STICKY_TIMEOUTS,
     62 	PER_UW7 =		0x000e | STICKY_TIMEOUTS | MMAP_PAGE_ZERO,
     63 	PER_OSF4 =		0x000f,			 /* OSF/1 v4 */
     64 	PER_HPUX =		0x0010,
     65 	PER_MASK =		0x00ff,
     66 };
     67 
     68 
     69 #endif /* _UAPI_LINUX_PERSONALITY_H */
     70