[uclibc-ng-devel] [PATCH 1/2] fanotify: add system call support

Add support for fanotify_init() and fanotify_mark() syscalls. The header file is taken from glibc. Signed-off-by: Bartosz Golaszewski &lt;bartekgola(a)gmail.com&gt; --- libc/sysdeps/linux/common/Makefile.in | 1 + libc/sysdeps/linux/common/fanotify.c | 32 +++++++++++++++++++++++++++ libc/sysdeps/linux/common/sys/fanotify.h | 38 ++++++++++++++++++++++++++++++++ 3 files changed, 71 insertions(+) create mode 100644 libc/sysdeps/linux/common/fanotify.c create mode 100644 libc/sysdeps/linux/common/sys/fanotify.h diff --git a/libc/sysdeps/linux/common/Makefile.in b/libc/sysdeps/linux/common/Makefile.in index 8252598..b75b712 100644 --- a/libc/sysdeps/linux/common/Makefile.in +++ b/libc/sysdeps/linux/common/Makefile.in @@ -27,6 +27,7 @@ CSRC-$(UCLIBC_LINUX_SPECIFIC) += \ eventfd.c \ eventfd_read.c \ eventfd_write.c \ + fanotify.c \ getrandom.c \ inotify.c \ ioperm.c \ diff --git a/libc/sysdeps/linux/common/fanotify.c b/libc/sysdeps/linux/common/fanotify.c new file mode 100644 index 0000000..431e0e5 --- /dev/null +++ b/libc/sysdeps/linux/common/fanotify.c @@ -0,0 +1,32 @@ +/* vi: set sw=4 ts=4: */ +/* + * fanotify interface for uClibc + * + * Copyright (C) 2015 by Bartosz Golaszewski &lt;bartekgola(a)gmail.com&gt; + * + * Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball. + */ + +#include <sys/syscall.h> +#include <sys/fanotify.h> + +#ifdef __NR_fanotify_init +_syscall2(int, fanotify_init, unsigned int, flags, unsigned int, event_f_flags) +#endif + +#ifdef __NR_fanotify_mark +# include <bits/wordsize.h> +# include <fcntl.h> + +# if __WORDSIZE == 64 +_syscall5(int, fanotify_mark, int, fanotify_fd, unsigned int, flags, + uint64_t, mask, int, dirfd, const char *, pathname) +# else +int fanotify_mark(int fanotify_fd, unsigned int flags, + uint64_t mask, int dirfd, const char *pathname) +{ + return INLINE_SYSCALL(fanotify_mark, 6, fanotify_fd, flags, + OFF64_HI_LO(mask), dirfd, pathname); +} +# endif +#endif diff --git a/libc/sysdeps/linux/common/sys/fanotify.h b/libc/sysdeps/linux/common/sys/fanotify.h new file mode 100644 index 0000000..5eec3e5 --- /dev/null +++ b/libc/sysdeps/linux/common/sys/fanotify.h @@ -0,0 +1,38 @@ +/* Copyright (C) 2010-2015 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, see + <http://www.gnu.org/licenses/>. */ + +#ifndef _SYS_FANOTIFY_H +#define _SYS_FANOTIFY_H 1 + +#include <stdint.h> +#include <linux/fanotify.h> + + +__BEGIN_DECLS + +/* Create and initialize fanotify group. */ +extern int fanotify_init (unsigned int __flags, unsigned int __event_f_flags) + __THROW; + +/* Add, remove, or modify an fanotify mark on a filesystem object. */ +extern int fanotify_mark (int __fanotify_fd, unsigned int __flags, + uint64_t __mask, int __dfd, const char *__pathname) + __THROW; + +__END_DECLS + +#endif /* sys/fanotify.h */ -- 2.1.4