Release 4.12 include/linux/sched/coredump.h

#ifndef _LINUX_SCHED_COREDUMP_H

#define _LINUX_SCHED_COREDUMP_H

#include <linux/mm_types.h>


#define SUID_DUMP_DISABLE	0	
/* No setuid dumping */

#define SUID_DUMP_USER		1	
/* Dump as user of process */

#define SUID_DUMP_ROOT		2	
/* Dump as root */

/* mm flags */

/* for SUID_DUMP_* above */

#define MMF_DUMPABLE_BITS 2

#define MMF_DUMPABLE_MASK ((1 << MMF_DUMPABLE_BITS) - 1)

extern void set_dumpable(struct mm_struct *mm, int value);
/*
 * This returns the actual value of the suid_dumpable flag. For things
 * that are using this for checking for privilege transitions, it must
 * test against SUID_DUMP_USER rather than treating it as a boolean
 * value.
 */


static inline int __get_dumpable(unsigned long mm_flags)
{
	return mm_flags & MMF_DUMPABLE_MASK;
}

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static inline int get_dumpable(struct mm_struct *mm)
{
	return __get_dumpable(mm->flags);
}

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/* coredump filter bits */

#define MMF_DUMP_ANON_PRIVATE	2

#define MMF_DUMP_ANON_SHARED	3

#define MMF_DUMP_MAPPED_PRIVATE	4

#define MMF_DUMP_MAPPED_SHARED	5

#define MMF_DUMP_ELF_HEADERS	6

#define MMF_DUMP_HUGETLB_PRIVATE 7

#define MMF_DUMP_HUGETLB_SHARED  8

#define MMF_DUMP_DAX_PRIVATE	9

#define MMF_DUMP_DAX_SHARED	10


#define MMF_DUMP_FILTER_SHIFT	MMF_DUMPABLE_BITS

#define MMF_DUMP_FILTER_BITS	9

#define MMF_DUMP_FILTER_MASK \
	(((1 << MMF_DUMP_FILTER_BITS) - 1) << MMF_DUMP_FILTER_SHIFT)

#define MMF_DUMP_FILTER_DEFAULT \
	((1 << MMF_DUMP_ANON_PRIVATE) | (1 << MMF_DUMP_ANON_SHARED) |\
         (1 << MMF_DUMP_HUGETLB_PRIVATE) | MMF_DUMP_MASK_DEFAULT_ELF)

#ifdef CONFIG_CORE_DUMP_DEFAULT_ELF_HEADERS

# define MMF_DUMP_MASK_DEFAULT_ELF	(1 << MMF_DUMP_ELF_HEADERS)
#else

# define MMF_DUMP_MASK_DEFAULT_ELF	0
#endif
					/* leave room for more dump flags */

#define MMF_VM_MERGEABLE	16	
/* KSM may merge identical pages */

#define MMF_VM_HUGEPAGE		17	
/* set when VM_HUGEPAGE is set on vma */
/*
 * This one-shot flag is dropped due to necessity of changing exe once again
 * on NFS restore
 */
//#define MMF_EXE_FILE_CHANGED  18      /* see prctl_set_mm_exe_file() */


#define MMF_HAS_UPROBES		19	
/* has uprobes */

#define MMF_RECALC_UPROBES	20	
/* MMF_HAS_UPROBES can be wrong */

#define MMF_OOM_SKIP		21	
/* mm is of no interest for the OOM killer */

#define MMF_UNSTABLE		22	
/* mm is unstable for copy_from_user */

#define MMF_HUGE_ZERO_PAGE	23      
/* mm has ever used the global huge zero page */


#define MMF_INIT_MASK		(MMF_DUMPABLE_MASK | MMF_DUMP_FILTER_MASK)

#endif /* _LINUX_SCHED_COREDUMP_H */
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Directory: include/linux/sched

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