1#ifndef _LINUX_PERSONALITY_H
2#define _LINUX_PERSONALITY_H
3
4#ifdef __KERNEL__
5
6
7
8
9
10struct exec_domain;
11struct pt_regs;
12
13extern int register_exec_domain(struct exec_domain *);
14extern int unregister_exec_domain(struct exec_domain *);
15extern int __set_personality(unsigned int);
16
17#endif
18
19
20
21
22
23
24enum {
25 UNAME26 = 0x0020000,
26 ADDR_NO_RANDOMIZE = 0x0040000,
27 FDPIC_FUNCPTRS = 0x0080000,
28
29
30 MMAP_PAGE_ZERO = 0x0100000,
31 ADDR_COMPAT_LAYOUT = 0x0200000,
32 READ_IMPLIES_EXEC = 0x0400000,
33 ADDR_LIMIT_32BIT = 0x0800000,
34 SHORT_INODE = 0x1000000,
35 WHOLE_SECONDS = 0x2000000,
36 STICKY_TIMEOUTS = 0x4000000,
37 ADDR_LIMIT_3GB = 0x8000000,
38};
39
40
41
42
43
44#define PER_CLEAR_ON_SETID (READ_IMPLIES_EXEC | \
45 ADDR_NO_RANDOMIZE | \
46 ADDR_COMPAT_LAYOUT | \
47 MMAP_PAGE_ZERO)
48
49
50
51
52
53
54
55enum {
56 PER_LINUX = 0x0000,
57 PER_LINUX_32BIT = 0x0000 | ADDR_LIMIT_32BIT,
58 PER_LINUX_FDPIC = 0x0000 | FDPIC_FUNCPTRS,
59 PER_SVR4 = 0x0001 | STICKY_TIMEOUTS | MMAP_PAGE_ZERO,
60 PER_SVR3 = 0x0002 | STICKY_TIMEOUTS | SHORT_INODE,
61 PER_SCOSVR3 = 0x0003 | STICKY_TIMEOUTS |
62 WHOLE_SECONDS | SHORT_INODE,
63 PER_OSR5 = 0x0003 | STICKY_TIMEOUTS | WHOLE_SECONDS,
64 PER_WYSEV386 = 0x0004 | STICKY_TIMEOUTS | SHORT_INODE,
65 PER_ISCR4 = 0x0005 | STICKY_TIMEOUTS,
66 PER_BSD = 0x0006,
67 PER_SUNOS = 0x0006 | STICKY_TIMEOUTS,
68 PER_XENIX = 0x0007 | STICKY_TIMEOUTS | SHORT_INODE,
69 PER_LINUX32 = 0x0008,
70 PER_LINUX32_3GB = 0x0008 | ADDR_LIMIT_3GB,
71 PER_IRIX32 = 0x0009 | STICKY_TIMEOUTS,
72 PER_IRIXN32 = 0x000a | STICKY_TIMEOUTS,
73 PER_IRIX64 = 0x000b | STICKY_TIMEOUTS,
74 PER_RISCOS = 0x000c,
75 PER_SOLARIS = 0x000d | STICKY_TIMEOUTS,
76 PER_UW7 = 0x000e | STICKY_TIMEOUTS | MMAP_PAGE_ZERO,
77 PER_OSF4 = 0x000f,
78 PER_HPUX = 0x0010,
79 PER_MASK = 0x00ff,
80};
81
82#ifdef __KERNEL__
83
84
85
86
87
88
89
90typedef void (*handler_t)(int, struct pt_regs *);
91
92struct exec_domain {
93 const char *name;
94 handler_t handler;
95 unsigned char pers_low;
96 unsigned char pers_high;
97 unsigned long *signal_map;
98 unsigned long *signal_invmap;
99 struct map_segment *err_map;
100 struct map_segment *socktype_map;
101 struct map_segment *sockopt_map;
102 struct map_segment *af_map;
103 struct module *module;
104 struct exec_domain *next;
105};
106
107
108
109
110#define personality(pers) (pers & PER_MASK)
111
112
113
114
115
116#define set_personality(pers) \
117 ((current->personality == (pers)) ? 0 : __set_personality(pers))
118
119#endif
120
121#endif
122