fanotify: include needed Linux definitions

To support older Linux kernel f.e. 2.6.32.68 include all
required definitions. Copied from musl libc fanotify.h.

Reported by Thomas Petazzoni from Buildroot project.

1 files changed, 59 insertions, 1 deletions

diff --git a/libc/sysdeps/linux/common/sys/fanotify.h b/libc/sysdeps/linux/common/sys/fanotify.h
index 5eec3e55c..b1e9cca8e 100644
--- a/libc/sysdeps/linux/common/sys/fanotify.h
+++ b/libc/sysdeps/linux/common/sys/fanotify.h
@@ -19,7 +19,65 @@
 #define	_SYS_FANOTIFY_H	1
 
 #include <stdint.h>
-#include <linux/fanotify.h>
+
+struct fanotify_event_metadata {
+	unsigned event_len;
+	unsigned char vers;
+	unsigned char reserved;
+	unsigned short metadata_len;
+	unsigned long long mask
+#ifdef __GNUC__
+	__attribute__((__aligned__(8)))
+#endif
+	;
+	int fd;
+	int pid;
+};
+
+struct fanotify_response {
+	int fd;
+	unsigned response;
+};
+
+#define FAN_ACCESS 0x01
+#define FAN_MODIFY 0x02
+#define FAN_CLOSE_WRITE 0x08
+#define FAN_CLOSE_NOWRITE 0x10
+#define FAN_OPEN 0x20
+#define FAN_Q_OVERFLOW 0x4000
+#define FAN_OPEN_PERM 0x10000
+#define FAN_ACCESS_PERM 0x20000
+#define FAN_ONDIR 0x40000000
+#define FAN_EVENT_ON_CHILD 0x08000000
+#define FAN_CLOSE (FAN_CLOSE_WRITE | FAN_CLOSE_NOWRITE)
+#define FAN_CLOEXEC 0x01
+#define FAN_NONBLOCK 0x02
+#define FAN_CLASS_NOTIF 0
+#define FAN_CLASS_CONTENT 0x04
+#define FAN_CLASS_PRE_CONTENT 0x08
+#define FAN_ALL_CLASS_BITS (FAN_CLASS_NOTIF | FAN_CLASS_CONTENT | FAN_CLASS_PRE_CONTENT)
+#define FAN_UNLIMITED_QUEUE 0x10
+#define FAN_UNLIMITED_MARKS 0x20
+#define FAN_ALL_INIT_FLAGS (FAN_CLOEXEC | FAN_NONBLOCK | FAN_ALL_CLASS_BITS | FAN_UNLIMITED_QUEUE | FAN_UNLIMITED_MARKS)
+#define FAN_MARK_ADD 0x01
+#define FAN_MARK_REMOVE 0x02
+#define FAN_MARK_DONT_FOLLOW 0x04
+#define FAN_MARK_ONLYDIR 0x08
+#define FAN_MARK_MOUNT 0x10
+#define FAN_MARK_IGNORED_MASK 0x20
+#define FAN_MARK_IGNORED_SURV_MODIFY 0x40
+#define FAN_MARK_FLUSH 0x80
+#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)
+#define FAN_ALL_EVENTS (FAN_ACCESS | FAN_MODIFY | FAN_CLOSE | FAN_OPEN)
+#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 3
+#define FAN_ALLOW 0x01
+#define FAN_DENY 0x02
+#define FAN_NOFD -1
+#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))
 
 
 __BEGIN_DECLS