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