Quelle  personality.h   Sprache: C

/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
#ifndef _UAPI_LINUX_PERSONALITY_H
#define _UAPI_LINUX_PERSONALITY_H


/*
 * Flags for bug emulation.
 *
 * These occupy the top three bytes.
 */
enum {
 UNAME26 =               0x0020000,
 ADDR_NO_RANDOMIZE =  0x0040000, /* disable randomization of VA space */
 FDPIC_FUNCPTRS = 0x0080000, /* userspace function ptrs point to descriptors
 * (signal handling)
 */
 MMAP_PAGE_ZERO = 0x0100000,
 ADDR_COMPAT_LAYOUT = 0x0200000,
 READ_IMPLIES_EXEC = 0x0400000,
 ADDR_LIMIT_32BIT = 0x0800000,
 SHORT_INODE =  0x1000000,
 WHOLE_SECONDS =  0x2000000,
 STICKY_TIMEOUTS = 0x4000000,
 ADDR_LIMIT_3GB =  0x8000000,
};

/*
 * Security-relevant compatibility flags that must be
 * cleared upon setuid or setgid exec:
 */
#define PER_CLEAR_ON_SETID (READ_IMPLIES_EXEC  | \
       ADDR_NO_RANDOMIZE  | \
       ADDR_COMPAT_LAYOUT | \
       MMAP_PAGE_ZERO)

/*
 * Personality types.
 *
 * These go in the low byte.  Avoid using the top bit, it will
 * conflict with error returns.
 */
enum {
 PER_LINUX =  0x0000,
 PER_LINUX_32BIT = 0x0000 | ADDR_LIMIT_32BIT,
 PER_LINUX_FDPIC = 0x0000 | FDPIC_FUNCPTRS,
 PER_SVR4 =  0x0001 | STICKY_TIMEOUTS | MMAP_PAGE_ZERO,
 PER_SVR3 =  0x0002 | STICKY_TIMEOUTS | SHORT_INODE,
 PER_SCOSVR3 =  0x0003 | STICKY_TIMEOUTS |
      WHOLE_SECONDS | SHORT_INODE,
 PER_OSR5 =  0x0003 | STICKY_TIMEOUTS | WHOLE_SECONDS,
 PER_WYSEV386 =  0x0004 | STICKY_TIMEOUTS | SHORT_INODE,
 PER_ISCR4 =  0x0005 | STICKY_TIMEOUTS,
 PER_BSD =  0x0006,
 PER_SUNOS =  0x0006 | STICKY_TIMEOUTS,
 PER_XENIX =  0x0007 | STICKY_TIMEOUTS | SHORT_INODE,
 PER_LINUX32 =  0x0008,
 PER_LINUX32_3GB = 0x0008 | ADDR_LIMIT_3GB,
 PER_IRIX32 =  0x0009 | STICKY_TIMEOUTS,/* IRIX5 32-bit */
 PER_IRIXN32 =  0x000a | STICKY_TIMEOUTS,/* IRIX6 new 32-bit */
 PER_IRIX64 =  0x000b | STICKY_TIMEOUTS,/* IRIX6 64-bit */
 PER_RISCOS =  0x000c,
 PER_SOLARIS =  0x000d | STICKY_TIMEOUTS,
 PER_UW7 =  0x000e | STICKY_TIMEOUTS | MMAP_PAGE_ZERO,
 PER_OSF4 =  0x000f,    /* OSF/1 v4 */
 PER_HPUX =  0x0010,
 PER_MASK =  0x00ff,
};


#endif /* _UAPI_LINUX_PERSONALITY_H */