1*4882a593Smuzhiyun /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ 2*4882a593Smuzhiyun #ifndef _UAPI_LINUX_PERSONALITY_H 3*4882a593Smuzhiyun #define _UAPI_LINUX_PERSONALITY_H 4*4882a593Smuzhiyun 5*4882a593Smuzhiyun 6*4882a593Smuzhiyun /* 7*4882a593Smuzhiyun * Flags for bug emulation. 8*4882a593Smuzhiyun * 9*4882a593Smuzhiyun * These occupy the top three bytes. 10*4882a593Smuzhiyun */ 11*4882a593Smuzhiyun enum { 12*4882a593Smuzhiyun UNAME26 = 0x0020000, 13*4882a593Smuzhiyun ADDR_NO_RANDOMIZE = 0x0040000, /* disable randomization of VA space */ 14*4882a593Smuzhiyun FDPIC_FUNCPTRS = 0x0080000, /* userspace function ptrs point to descriptors 15*4882a593Smuzhiyun * (signal handling) 16*4882a593Smuzhiyun */ 17*4882a593Smuzhiyun MMAP_PAGE_ZERO = 0x0100000, 18*4882a593Smuzhiyun ADDR_COMPAT_LAYOUT = 0x0200000, 19*4882a593Smuzhiyun READ_IMPLIES_EXEC = 0x0400000, 20*4882a593Smuzhiyun ADDR_LIMIT_32BIT = 0x0800000, 21*4882a593Smuzhiyun SHORT_INODE = 0x1000000, 22*4882a593Smuzhiyun WHOLE_SECONDS = 0x2000000, 23*4882a593Smuzhiyun STICKY_TIMEOUTS = 0x4000000, 24*4882a593Smuzhiyun ADDR_LIMIT_3GB = 0x8000000, 25*4882a593Smuzhiyun }; 26*4882a593Smuzhiyun 27*4882a593Smuzhiyun /* 28*4882a593Smuzhiyun * Security-relevant compatibility flags that must be 29*4882a593Smuzhiyun * cleared upon setuid or setgid exec: 30*4882a593Smuzhiyun */ 31*4882a593Smuzhiyun #define PER_CLEAR_ON_SETID (READ_IMPLIES_EXEC | \ 32*4882a593Smuzhiyun ADDR_NO_RANDOMIZE | \ 33*4882a593Smuzhiyun ADDR_COMPAT_LAYOUT | \ 34*4882a593Smuzhiyun MMAP_PAGE_ZERO) 35*4882a593Smuzhiyun 36*4882a593Smuzhiyun /* 37*4882a593Smuzhiyun * Personality types. 38*4882a593Smuzhiyun * 39*4882a593Smuzhiyun * These go in the low byte. Avoid using the top bit, it will 40*4882a593Smuzhiyun * conflict with error returns. 41*4882a593Smuzhiyun */ 42*4882a593Smuzhiyun enum { 43*4882a593Smuzhiyun PER_LINUX = 0x0000, 44*4882a593Smuzhiyun PER_LINUX_32BIT = 0x0000 | ADDR_LIMIT_32BIT, 45*4882a593Smuzhiyun PER_LINUX_FDPIC = 0x0000 | FDPIC_FUNCPTRS, 46*4882a593Smuzhiyun PER_SVR4 = 0x0001 | STICKY_TIMEOUTS | MMAP_PAGE_ZERO, 47*4882a593Smuzhiyun PER_SVR3 = 0x0002 | STICKY_TIMEOUTS | SHORT_INODE, 48*4882a593Smuzhiyun PER_SCOSVR3 = 0x0003 | STICKY_TIMEOUTS | 49*4882a593Smuzhiyun WHOLE_SECONDS | SHORT_INODE, 50*4882a593Smuzhiyun PER_OSR5 = 0x0003 | STICKY_TIMEOUTS | WHOLE_SECONDS, 51*4882a593Smuzhiyun PER_WYSEV386 = 0x0004 | STICKY_TIMEOUTS | SHORT_INODE, 52*4882a593Smuzhiyun PER_ISCR4 = 0x0005 | STICKY_TIMEOUTS, 53*4882a593Smuzhiyun PER_BSD = 0x0006, 54*4882a593Smuzhiyun PER_SUNOS = 0x0006 | STICKY_TIMEOUTS, 55*4882a593Smuzhiyun PER_XENIX = 0x0007 | STICKY_TIMEOUTS | SHORT_INODE, 56*4882a593Smuzhiyun PER_LINUX32 = 0x0008, 57*4882a593Smuzhiyun PER_LINUX32_3GB = 0x0008 | ADDR_LIMIT_3GB, 58*4882a593Smuzhiyun PER_IRIX32 = 0x0009 | STICKY_TIMEOUTS,/* IRIX5 32-bit */ 59*4882a593Smuzhiyun PER_IRIXN32 = 0x000a | STICKY_TIMEOUTS,/* IRIX6 new 32-bit */ 60*4882a593Smuzhiyun PER_IRIX64 = 0x000b | STICKY_TIMEOUTS,/* IRIX6 64-bit */ 61*4882a593Smuzhiyun PER_RISCOS = 0x000c, 62*4882a593Smuzhiyun PER_SOLARIS = 0x000d | STICKY_TIMEOUTS, 63*4882a593Smuzhiyun PER_UW7 = 0x000e | STICKY_TIMEOUTS | MMAP_PAGE_ZERO, 64*4882a593Smuzhiyun PER_OSF4 = 0x000f, /* OSF/1 v4 */ 65*4882a593Smuzhiyun PER_HPUX = 0x0010, 66*4882a593Smuzhiyun PER_MASK = 0x00ff, 67*4882a593Smuzhiyun }; 68*4882a593Smuzhiyun 69*4882a593Smuzhiyun 70*4882a593Smuzhiyun #endif /* _UAPI_LINUX_PERSONALITY_H */ 71