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#ifndef __CR_KERNDAT_H__
#define __CR_KERNDAT_H__
#include <stdbool.h>
#include "int.h"
#include "common/config.h"
#include "asm/kerndat.h"
#include "util-vdso.h"
struct stat;
/*
* kerndat stands for "kernel data" and is a collection
* of run-time information about current kernel
*/
extern int kerndat_init(void);
enum pagemap_func {
PM_UNKNOWN,
PM_DISABLED, /* /proc/pid/pagemap doesn't open (user mode) */
PM_FLAGS_ONLY, /* pagemap zeroes pfn part (user mode) */
PM_FULL,
};
enum loginuid_func {
LUID_NONE,
LUID_READ,
LUID_FULL,
};
struct kerndat_s {
u32 magic1, magic2;
dev_t shmem_dev;
int last_cap;
u64 zero_page_pfn;
bool has_dirty_track;
bool has_memfd;
bool has_fdinfo_lock;
unsigned long task_size;
bool ipv6;
enum loginuid_func luid;
bool compat_cr;
bool sk_ns;
bool sk_unix_file;
bool tun_ns;
enum pagemap_func pmap;
unsigned int has_xtlocks;
unsigned long mmap_min_addr;
bool has_tcp_half_closed;
bool stack_guard_gap_hidden;
int lsm;
bool apparmor_ns_dumping_enabled;
bool has_uffd;
unsigned long uffd_features;
bool has_thp_disable;
bool can_map_vdso;
bool vdso_hint_reliable;
struct vdso_symtable vdso_sym;
#ifdef CONFIG_COMPAT
struct vdso_symtable vdso_sym_compat;
#endif
bool has_nsid;
bool has_link_nsid;
unsigned int sysctl_nr_open;
bool x86_has_ptrace_fpu_xsave_bug;
bool has_inotify_setnextwd;
bool has_kcmp_epoll_tfd;
bool has_fsopen;
bool has_clone3_set_tid;
bool has_timens;
bool has_newifindex;
bool has_pidfd_open;
bool has_pidfd_getfd;
bool has_nspid;
bool has_nftables_concat;
bool has_sockopt_buf_lock;
};
extern struct kerndat_s kdat;
enum {
KERNDAT_FS_STAT_DEVPTS,
KERNDAT_FS_STAT_DEVTMPFS,
KERNDAT_FS_STAT_BINFMT_MISC,
KERNDAT_FS_STAT_MAX
};
/*
* Check whether the fs @which with kdevice @kdev
* is the same as host's. If yes, this means that
* the fs mount is shared with host, if no -- it's
* a new (likely virtuzlized) fs instance.
*/
extern int kerndat_fs_virtualized(unsigned int which, u32 kdev);
extern int kerndat_has_nspid(void);
#endif /* __CR_KERNDAT_H__ */
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