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/* SPDX-License-Identifier: GPL-2.0 */
#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;
}
static inline int get_dumpable(struct mm_struct *mm)
{
return __get_dumpable(mm->flags);
}
/* 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_DISABLE_THP 24 /* disable THP for all VMAs */
#define MMF_DISABLE_THP_MASK (1 << MMF_DISABLE_THP)
#define MMF_OOM_REAP_QUEUED 25 /* mm was queued for oom_reaper */
#define MMF_MULTIPROCESS 26 /* mm is shared between processes */
/*
* MMF_HAS_PINNED: Whether this mm has pinned any pages. This can be either
* replaced in the future by mm.pinned_vm when it becomes stable, or grow into
* a counter on its own. We're aggresive on this bit for now: even if the
* pinned pages were unpinned later on, we'll still keep this bit set for the
* lifecycle of this mm, just for simplicity.
*/
#define MMF_HAS_PINNED 27 /* FOLL_PIN has run, never cleared */
#define MMF_HAS_MDWE 28
#define MMF_HAS_MDWE_MASK (1 << MMF_HAS_MDWE)
#define MMF_HAS_MDWE_NO_INHERIT 29
#define MMF_VM_MERGE_ANY 30
#define MMF_VM_MERGE_ANY_MASK (1 << MMF_VM_MERGE_ANY)
#define MMF_TOPDOWN 31 /* mm searches top down by default */
#define MMF_TOPDOWN_MASK (1 << MMF_TOPDOWN)
#define MMF_INIT_MASK (MMF_DUMPABLE_MASK | MMF_DUMP_FILTER_MASK |\
MMF_DISABLE_THP_MASK | MMF_HAS_MDWE_MASK |\
MMF_VM_MERGE_ANY_MASK | MMF_TOPDOWN_MASK)
static inline unsigned long mmf_init_flags(unsigned long flags)
{
if (flags & (1UL << MMF_HAS_MDWE_NO_INHERIT))
flags &= ~((1UL << MMF_HAS_MDWE) |
(1UL << MMF_HAS_MDWE_NO_INHERIT));
return flags & MMF_INIT_MASK;
}
#endif /* _LINUX_SCHED_COREDUMP_H */
| Name | Type | Size | Permission | Actions |
|---|---|---|---|---|
| affinity.h | File | 25 B | 0644 |
|
| autogroup.h | File | 1.2 KB | 0644 |
|
| clock.h | File | 2.71 KB | 0644 |
|
| cond_resched.h | File | 25 B | 0644 |
|
| coredump.h | File | 3.69 KB | 0644 |
|
| cpufreq.h | File | 983 B | 0644 |
|
| cputime.h | File | 5.22 KB | 0644 |
|
| deadline.h | File | 780 B | 0644 |
|
| debug.h | File | 1.42 KB | 0644 |
|
| hotplug.h | File | 591 B | 0644 |
|
| idle.h | File | 1.85 KB | 0644 |
|
| init.h | File | 240 B | 0644 |
|
| isolation.h | File | 2.04 KB | 0644 |
|
| jobctl.h | File | 1.91 KB | 0644 |
|
| loadavg.h | File | 1.55 KB | 0644 |
|
| mm.h | File | 14.68 KB | 0644 |
|
| nohz.h | File | 907 B | 0644 |
|
| numa_balancing.h | File | 1.46 KB | 0644 |
|
| posix-timers.h | File | 32 B | 0644 |
|
| prio.h | File | 1.09 KB | 0644 |
|
| rseq_api.h | File | 24 B | 0644 |
|
| rt.h | File | 1.35 KB | 0644 |
|
| sd_flags.h | File | 5.3 KB | 0644 |
|
| signal.h | File | 22.24 KB | 0644 |
|
| smt.h | File | 440 B | 0644 |
|
| stat.h | File | 887 B | 0644 |
|
| sysctl.h | File | 956 B | 0644 |
|
| task.h | File | 5.87 KB | 0644 |
|
| task_flags.h | File | 25 B | 0644 |
|
| task_stack.h | File | 2.99 KB | 0644 |
|
| thread_info_api.h | File | 31 B | 0644 |
|
| topology.h | File | 7.11 KB | 0644 |
|
| types.h | File | 710 B | 0644 |
|
| user.h | File | 1.59 KB | 0644 |
|
| wake_q.h | File | 2.22 KB | 0644 |
|
| xacct.h | File | 854 B | 0644 |
|