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 */

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