1 /* 2 * $FreeBSD$ 3 */ 4 5 #ifndef LINUX_PERSONALITY_H 6 #define LINUX_PERSONALITY_H 7 8 /* 9 * Flags for bug emulation. 10 * 11 * These occupy the top three bytes. 12 */ 13 enum { 14 LINUX_UNAME26 = 0x0020000, 15 LINUX_ADDR_NO_RANDOMIZE = 0x0040000, /* disable randomization 16 * of VA space 17 */ 18 LINUX_FDPIC_FUNCPTRS = 0x0080000, /* userspace function 19 * ptrs point to descriptors 20 * (signal handling) 21 */ 22 LINUX_MMAP_PAGE_ZERO = 0x0100000, 23 LINUX_ADDR_COMPAT_LAYOUT = 0x0200000, 24 LINUX_READ_IMPLIES_EXEC = 0x0400000, 25 LINUX_ADDR_LIMIT_32BIT = 0x0800000, 26 LINUX_SHORT_INODE = 0x1000000, 27 LINUX_WHOLE_SECONDS = 0x2000000, 28 LINUX_STICKY_TIMEOUTS = 0x4000000, 29 LINUX_ADDR_LIMIT_3GB = 0x8000000, 30 }; 31 32 /* 33 * Security-relevant compatibility flags that must be 34 * cleared upon setuid or setgid exec: 35 */ 36 #define LINUX_PER_CLEAR_ON_SETID (LINUX_READ_IMPLIES_EXEC | \ 37 LINUX_ADDR_NO_RANDOMIZE | \ 38 LINUX_ADDR_COMPAT_LAYOUT | \ 39 LINUX_MMAP_PAGE_ZERO) 40 41 /* 42 * Personality types. 43 * 44 * These go in the low byte. Avoid using the top bit, it will 45 * conflict with error returns. 46 */ 47 enum { 48 LINUX_PER_LINUX = 0x0000, 49 LINUX_PER_LINUX_32BIT = 0x0000 | LINUX_ADDR_LIMIT_32BIT, 50 LINUX_PER_LINUX_FDPIC = 0x0000 | LINUX_FDPIC_FUNCPTRS, 51 LINUX_PER_LINUX32 = 0x0008, 52 LINUX_PER_LINUX32_3GB = 0x0008 | LINUX_ADDR_LIMIT_3GB, 53 LINUX_PER_MASK = 0x00ff, 54 }; 55 56 #endif /* LINUX_PERSONALITY_H */ 57