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missing: remove fanotify

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It was only used in readahead.
This commit is contained in:
Zbigniew Jędrzejewski-Szmek 2014-10-16 18:29:45 -04:00
parent 8fa6cbe1a9
commit c7e4a7bece
4 changed files with 0 additions and 159 deletions
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1
Makefile.am
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@ -740,7 +740,6 @@ noinst_LTLIBRARIES += \
libsystemd_shared_la_SOURCES = \
src/shared/linux/auto_dev-ioctl.h \
src/shared/linux/fanotify.h \
src/shared/ioprio.h \
src/shared/missing.h \
src/shared/initreq.h \

1
configure.ac
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@ -306,7 +306,6 @@ RT_LIBS="$LIBS"
AC_SUBST(RT_LIBS)
LIBS="$save_LIBS"
AC_CHECK_FUNCS([fanotify_init fanotify_mark])
AC_CHECK_FUNCS([memfd_create])
AC_CHECK_FUNCS([__secure_getenv secure_getenv])
AC_CHECK_DECLS([gettid, pivot_root, name_to_handle_at, setns, LO_FLAGS_PARTSCAN],

98
src/shared/linux/fanotify.h
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@ -1,98 +0,0 @@
#ifndef _LINUX_FANOTIFY_H
#define _LINUX_FANOTIFY_H
#include <linux/types.h>
/* the following events that user-space can register for */
#define FAN_ACCESS 0x00000001 /* File was accessed */
#define FAN_MODIFY 0x00000002 /* File was modified */
#define FAN_CLOSE_WRITE 0x00000008 /* Unwrittable file closed */
#define FAN_CLOSE_NOWRITE 0x00000010 /* Writtable file closed */
#define FAN_OPEN 0x00000020 /* File was opened */
#define FAN_EVENT_ON_CHILD 0x08000000 /* interested in child events */
/* FIXME currently Q's have no limit.... */
#define FAN_Q_OVERFLOW 0x00004000 /* Event queued overflowed */
#define FAN_OPEN_PERM 0x00010000 /* File open in perm check */
#define FAN_ACCESS_PERM 0x00020000 /* File accessed in perm check */
/* helper events */
#define FAN_CLOSE (FAN_CLOSE_WRITE | FAN_CLOSE_NOWRITE) /* close */
/* flags used for fanotify_init() */
#define FAN_CLOEXEC 0x00000001
#define FAN_NONBLOCK 0x00000002
#define FAN_ALL_INIT_FLAGS (FAN_CLOEXEC | FAN_NONBLOCK)
/* flags used for fanotify_modify_mark() */
#define FAN_MARK_ADD 0x00000001
#define FAN_MARK_REMOVE 0x00000002
#define FAN_MARK_DONT_FOLLOW 0x00000004
#define FAN_MARK_ONLYDIR 0x00000008
#define FAN_MARK_MOUNT 0x00000010
#define FAN_MARK_IGNORED_MASK 0x00000020
#define FAN_MARK_IGNORED_SURV_MODIFY 0x00000040
#define FAN_MARK_FLUSH 0x00000080
#define FAN_ALL_MARK_FLAGS (FAN_MARK_ADD |\
FAN_MARK_REMOVE |\
FAN_MARK_DONT_FOLLOW |\
FAN_MARK_ONLYDIR |\
FAN_MARK_MOUNT |\
FAN_MARK_IGNORED_MASK |\
FAN_MARK_IGNORED_SURV_MODIFY)
/*
* All of the events - we build the list by hand so that we can add flags in
* the future and not break backward compatibility. Apps will get only the
* events that they originally wanted. Be sure to add new events here!
*/
#define FAN_ALL_EVENTS (FAN_ACCESS |\
FAN_MODIFY |\
FAN_CLOSE |\
FAN_OPEN)
/*
* All events which require a permission response from userspace
*/
#define FAN_ALL_PERM_EVENTS (FAN_OPEN_PERM |\
FAN_ACCESS_PERM)
#define FAN_ALL_OUTGOING_EVENTS (FAN_ALL_EVENTS |\
FAN_ALL_PERM_EVENTS |\
FAN_Q_OVERFLOW)
#define FANOTIFY_METADATA_VERSION 2
struct fanotify_event_metadata {
__u32 event_len;
__u32 vers;
__u64 mask;
__s32 fd;
__s32 pid;
} __attribute__ ((packed));
struct fanotify_response {
__s32 fd;
__u32 response;
} __attribute__ ((packed));
/* Legit userspace responses to a _PERM event */
#define FAN_ALLOW 0x01
#define FAN_DENY 0x02
/* Helper functions to deal with fanotify_event_metadata buffers */
#define FAN_EVENT_METADATA_LEN (sizeof(struct fanotify_event_metadata))
#define FAN_EVENT_NEXT(meta, len) ((len) -= (meta)->event_len, \
(struct fanotify_event_metadata*)(((char *)(meta)) + \
(meta)->event_len))
#define FAN_EVENT_OK(meta, len) ((long)(len) >= (long)FAN_EVENT_METADATA_LEN && \
(long)(meta)->event_len >= (long)FAN_EVENT_METADATA_LEN && \
(long)(meta)->event_len <= (long)(len))
#endif /* _LINUX_FANOTIFY_H */

59
src/shared/missing.h
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@ -116,12 +116,6 @@ static inline int pivot_root(const char *new_root, const char *put_old) {
#endif
#ifdef __x86_64__
# ifndef __NR_fanotify_init
# define __NR_fanotify_init 300
# endif
# ifndef __NR_fanotify_mark
# define __NR_fanotify_mark 301
# endif
# ifndef __NR_memfd_create
# define __NR_memfd_create 319
# endif
@ -130,69 +124,16 @@ static inline int pivot_root(const char *new_root, const char *put_old) {
# define __NR_memfd_create 385
# endif
#elif defined _MIPS_SIM
# if _MIPS_SIM == _MIPS_SIM_ABI32
# ifndef __NR_fanotify_init
# define __NR_fanotify_init 4336
# endif
# ifndef __NR_fanotify_mark
# define __NR_fanotify_mark 4337
# endif
# elif _MIPS_SIM == _MIPS_SIM_NABI32
# ifndef __NR_fanotify_init
# define __NR_fanotify_init 6300
# endif
# ifndef __NR_fanotify_mark
# define __NR_fanotify_mark 6301
# endif
# elif _MIPS_SIM == _MIPS_SIM_ABI64
# ifndef __NR_fanotify_init
# define __NR_fanotify_init 5295
# endif
# ifndef __NR_fanotify_mark
# define __NR_fanotify_mark 5296
# endif
# endif
# ifndef __NR_memfd_create
# warning "__NR_memfd_create not yet defined for MIPS"
# define __NR_memfd_create 0xffffffff
# endif
#else
# ifndef __NR_fanotify_init
# define __NR_fanotify_init 338
# endif
# ifndef __NR_fanotify_mark
# define __NR_fanotify_mark 339
# endif
# ifndef __NR_memfd_create
# define __NR_memfd_create 356
# endif
#endif
#ifndef HAVE_FANOTIFY_INIT
static inline int fanotify_init(unsigned int flags, unsigned int event_f_flags) {
return syscall(__NR_fanotify_init, flags, event_f_flags);
}
#endif
#ifndef HAVE_FANOTIFY_MARK
static inline int fanotify_mark(int fanotify_fd, unsigned int flags, uint64_t mask,
int dfd, const char *pathname) {
#if defined _MIPS_SIM && _MIPS_SIM == _MIPS_SIM_ABI32 || defined __powerpc__ && !defined __powerpc64__ \
|| defined __arm__ && !defined __aarch64__
union {
uint64_t _64;
uint32_t _32[2];
} _mask;
_mask._64 = mask;
return syscall(__NR_fanotify_mark, fanotify_fd, flags,
_mask._32[0], _mask._32[1], dfd, pathname);
#else
return syscall(__NR_fanotify_mark, fanotify_fd, flags, mask, dfd, pathname);
#endif
}
#endif
#ifndef HAVE_MEMFD_CREATE
static inline int memfd_create(const char *name, unsigned int flags) {
return syscall(__NR_memfd_create, name, flags);