1/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
2#ifndef _UAPI_LINUX_PERSONALITY_H
3#define _UAPI_LINUX_PERSONALITY_H
4
5
6/*
7 * Flags for bug emulation.
8 *
9 * These occupy the top three bytes.
10 */
11enum {
12 UNAME26 = 0x0020000,
13 ADDR_NO_RANDOMIZE = 0x0040000, /* disable randomization of VA space */
14 FDPIC_FUNCPTRS = 0x0080000, /* userspace function ptrs point to descriptors
15 * (signal handling)
16 */
17 MMAP_PAGE_ZERO = 0x0100000,
18 ADDR_COMPAT_LAYOUT = 0x0200000,
19 READ_IMPLIES_EXEC = 0x0400000,
20 ADDR_LIMIT_32BIT = 0x0800000,
21 SHORT_INODE = 0x1000000,
22 WHOLE_SECONDS = 0x2000000,
23 STICKY_TIMEOUTS = 0x4000000,
24 ADDR_LIMIT_3GB = 0x8000000,
25};
26
27/*
28 * Security-relevant compatibility flags that must be
29 * cleared upon setuid or setgid exec:
30 */
31#define PER_CLEAR_ON_SETID (READ_IMPLIES_EXEC | \
32 ADDR_NO_RANDOMIZE | \
33 ADDR_COMPAT_LAYOUT | \
34 MMAP_PAGE_ZERO)
35
36/*
37 * Personality types.
38 *
39 * These go in the low byte. Avoid using the top bit, it will
40 * conflict with error returns.
41 */
42enum {
43 PER_LINUX = 0x0000,
44 PER_LINUX_32BIT = 0x0000 | ADDR_LIMIT_32BIT,
45 PER_LINUX_FDPIC = 0x0000 | FDPIC_FUNCPTRS,
46 PER_SVR4 = 0x0001 | STICKY_TIMEOUTS | MMAP_PAGE_ZERO,
47 PER_SVR3 = 0x0002 | STICKY_TIMEOUTS | SHORT_INODE,
48 PER_SCOSVR3 = 0x0003 | STICKY_TIMEOUTS |
49 WHOLE_SECONDS | SHORT_INODE,
50 PER_OSR5 = 0x0003 | STICKY_TIMEOUTS | WHOLE_SECONDS,
51 PER_WYSEV386 = 0x0004 | STICKY_TIMEOUTS | SHORT_INODE,
52 PER_ISCR4 = 0x0005 | STICKY_TIMEOUTS,
53 PER_BSD = 0x0006,
54 PER_SUNOS = 0x0006 | STICKY_TIMEOUTS,
55 PER_XENIX = 0x0007 | STICKY_TIMEOUTS | SHORT_INODE,
56 PER_LINUX32 = 0x0008,
57 PER_LINUX32_3GB = 0x0008 | ADDR_LIMIT_3GB,
58 PER_IRIX32 = 0x0009 | STICKY_TIMEOUTS,/* IRIX5 32-bit */
59 PER_IRIXN32 = 0x000a | STICKY_TIMEOUTS,/* IRIX6 new 32-bit */
60 PER_IRIX64 = 0x000b | STICKY_TIMEOUTS,/* IRIX6 64-bit */
61 PER_RISCOS = 0x000c,
62 PER_SOLARIS = 0x000d | STICKY_TIMEOUTS,
63 PER_UW7 = 0x000e | STICKY_TIMEOUTS | MMAP_PAGE_ZERO,
64 PER_OSF4 = 0x000f, /* OSF/1 v4 */
65 PER_HPUX = 0x0010,
66 PER_MASK = 0x00ff,
67};
68
69
70#endif /* _UAPI_LINUX_PERSONALITY_H */
71