1 /* Copyright (C) 2010-2015 Free Software Foundation, Inc. 2 This file is part of the GNU C Library. 3 4 The GNU C Library is free software; you can redistribute it and/or 5 modify it under the terms of the GNU Lesser General Public 6 License as published by the Free Software Foundation; either 7 version 2.1 of the License, or (at your option) any later version. 8 9 The GNU C Library is distributed in the hope that it will be useful, 10 but WITHOUT ANY WARRANTY; without even the implied warranty of 11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 12 Lesser General Public License for more details. 13 14 You should have received a copy of the GNU Lesser General Public 15 License along with the GNU C Library; if not, see 16 <http://www.gnu.org/licenses/>. */ 17 18 #ifndef _SYS_FANOTIFY_H 19 #define _SYS_FANOTIFY_H 1 20 21 #include <stdint.h> 22 23 struct fanotify_event_metadata { 24 unsigned event_len; 25 unsigned char vers; 26 unsigned char reserved; 27 unsigned short metadata_len; 28 unsigned long long mask 29 #ifdef __GNUC__ 30 __attribute__((__aligned__(8))) 31 #endif 32 ; 33 int fd; 34 int pid; 35 }; 36 37 struct fanotify_response { 38 int fd; 39 unsigned response; 40 }; 41 42 #define FAN_ACCESS 0x01 43 #define FAN_MODIFY 0x02 44 #define FAN_CLOSE_WRITE 0x08 45 #define FAN_CLOSE_NOWRITE 0x10 46 #define FAN_OPEN 0x20 47 #define FAN_Q_OVERFLOW 0x4000 48 #define FAN_OPEN_PERM 0x10000 49 #define FAN_ACCESS_PERM 0x20000 50 #define FAN_ONDIR 0x40000000 51 #define FAN_EVENT_ON_CHILD 0x08000000 52 #define FAN_CLOSE (FAN_CLOSE_WRITE | FAN_CLOSE_NOWRITE) 53 #define FAN_CLOEXEC 0x01 54 #define FAN_NONBLOCK 0x02 55 #define FAN_CLASS_NOTIF 0 56 #define FAN_CLASS_CONTENT 0x04 57 #define FAN_CLASS_PRE_CONTENT 0x08 58 #define FAN_ALL_CLASS_BITS (FAN_CLASS_NOTIF | FAN_CLASS_CONTENT | FAN_CLASS_PRE_CONTENT) 59 #define FAN_UNLIMITED_QUEUE 0x10 60 #define FAN_UNLIMITED_MARKS 0x20 61 #define FAN_ALL_INIT_FLAGS (FAN_CLOEXEC | FAN_NONBLOCK | FAN_ALL_CLASS_BITS | FAN_UNLIMITED_QUEUE | FAN_UNLIMITED_MARKS) 62 #define FAN_MARK_ADD 0x01 63 #define FAN_MARK_REMOVE 0x02 64 #define FAN_MARK_DONT_FOLLOW 0x04 65 #define FAN_MARK_ONLYDIR 0x08 66 #define FAN_MARK_MOUNT 0x10 67 #define FAN_MARK_IGNORED_MASK 0x20 68 #define FAN_MARK_IGNORED_SURV_MODIFY 0x40 69 #define FAN_MARK_FLUSH 0x80 70 #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 | FAN_MARK_FLUSH) 71 #define FAN_ALL_EVENTS (FAN_ACCESS | FAN_MODIFY | FAN_CLOSE | FAN_OPEN) 72 #define FAN_ALL_PERM_EVENTS (FAN_OPEN_PERM | FAN_ACCESS_PERM) 73 #define FAN_ALL_OUTGOING_EVENTS (FAN_ALL_EVENTS | FAN_ALL_PERM_EVENTS | FAN_Q_OVERFLOW) 74 #define FANOTIFY_METADATA_VERSION 3 75 #define FAN_ALLOW 0x01 76 #define FAN_DENY 0x02 77 #define FAN_NOFD -1 78 #define FAN_EVENT_METADATA_LEN (sizeof(struct fanotify_event_metadata)) 79 #define FAN_EVENT_NEXT(meta, len) ((len) -= (meta)->event_len, (struct fanotify_event_metadata*)(((char *)(meta)) + (meta)->event_len)) 80 #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)) 81 82 83 __BEGIN_DECLS 84 85 /* Create and initialize fanotify group. */ 86 extern int fanotify_init (unsigned int __flags, unsigned int __event_f_flags) 87 __THROW; 88 89 /* Add, remove, or modify an fanotify mark on a filesystem object. */ 90 extern int fanotify_mark (int __fanotify_fd, unsigned int __flags, 91 uint64_t __mask, int __dfd, const char *__pathname) 92 __THROW; 93 94 __END_DECLS 95 96 #endif /* sys/fanotify.h */ 97