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David Howells607ca462012-10-13 10:46:48 +01001#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 */
10enum {
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 */
41enum {
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 */