I'm trying to use fanotify <http://man7.org/linux/man-pages/man7/fanotify.7.html> on Android and like to archive that with an executable file (compiled with the ndk). I'm using fsmon <https://github.com/nowsecure/fsmon> (small application which calls the fanotify systemcall) to start the monitor. But on executing the file (on a rooted device as root) I'm getting following error: generic_x86:/data/local/tmp # ./fsmon -B fanotify /storage/emulated/0/ fanotify_init: Function not implemented
fanotify is available in kernel version > 2.6.37 (which is shipped in Android 5+). I had tried it on a x86-emulator (Android 7) and on a Samsung I9300 armeabi-v7a (Android 6) with CM13 (both rooted). Kernel version of the x86 emulator: 3.4.67+ and of the Samsung device: 3.0.101-CM-g9c98896 Then I had a look into the x86-emulator goldfish kernel files in /goldfish/fs/notify/fanotify/Kconfig: config FANOTIFY bool "Filesystem wide access notification" select FSNOTIFY select ANON_INODES default n ---help--- Say Y here to enable fanotify suport. fanotify is a file access notification system which differs from inotify in that it sends an open file descriptor to the userspace listener along with the event. If unsure, say Y. config FANOTIFY_ACCESS_PERMISSIONS bool "fanotify permissions checking" depends on FANOTIFY depends on SECURITY default n ---help--- Say Y here is you want fanotify listeners to be able to make permissions decisions concerning filesystem events. This is used by some fanotify listeners which need to scan files before allowing the system access to use those files. This is used by some anti-malware vendors and by some hierarchical storage managent systems. If unsure, say N. So, I set both to Y, make clean and recompile the kernel - but same problem like before.. Have I overlooked something? -- -- unsubscribe: android-kernel+unsubscr...@googlegroups.com website: http://groups.google.com/group/android-kernel --- You received this message because you are subscribed to the Google Groups "Android Linux Kernel Development" group. To unsubscribe from this group and stop receiving emails from it, send an email to android-kernel+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.