| 1 | /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ |
| 2 | #ifndef _LINUX_PERSONALITY_H |
| 3 | #define _LINUX_PERSONALITY_H |
| 4 | |
| 5 | |
| 6 | /* |
| 7 | * Flags for bug emulation. |
| 8 | * |
| 9 | * These occupy the top three bytes. |
| 10 | */ |
| 11 | enum { |
| 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 | */ |
| 42 | enum { |
| 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 /* _LINUX_PERSONALITY_H */ |