personality.h (2096B) - Raw
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 */