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