cregit-Linux how code gets into the kernel

Release 4.12 include/uapi/linux/personality.h

#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 */

Overall Contributors

PersonTokensPropCommitsCommitProp
David Howells212100.00%1100.00%
Total212100.00%1100.00%
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