feat: add new struct definitions from fanotify linux api

Author: ad0

libc-test/semver/linux.txt

@@ -1423,6 +1423,7 @@ MAP_STACK
 MAP_TYPE
 MAXTTL
 MAX_ADDR_LEN
+MAX_HANDLE_SZ
 MAX_IPOPTLEN
 MCAST_BLOCK_SOURCE
 MCAST_EXCLUDE
@@ -3435,10 +3436,16 @@ execvpe
 faccessat
 fallocate
 fallocate64
+fanotify_event_info_error
+fanotify_event_info_fid
+fanotify_event_info_header
+fanotify_event_info_pidfd
 fanotify_event_metadata
 fanotify_init
 fanotify_mark
 fanotify_response
+fanotify_response_info_header
+fanotify_response_info_audit_rule
 fchdir
 fdatasync
 fdopendir

src/unix/linux_like/linux/mod.rs

@@ -503,9 +503,45 @@ s! {
         pub len: u32
     }
 
+    pub struct fanotify_event_info_header {
+        pub info_type: ::__u8,
+        _pad: ::__u8,
+        pub len: ::__u16,
+    }
+
+    pub struct fanotify_event_info_fid {
+        pub hdr: fanotify_event_info_header,
+        pub fsid: ::fsid_t,
+        pub handle: [::c_uchar; ::MAX_HANDLE_SZ],
+    }
+
+    pub struct fanotify_event_info_pidfd {
+        pub hdr: fanotify_event_info_header,
+        pub pidfd: ::__s32,
+    }
+
+    pub struct fanotify_event_info_error {
+        pub hdr: fanotify_event_info_header,
+        pub error: ::__s32,
+        pub error_count: ::__u32,
+    }
+
     pub struct fanotify_response {
         pub fd: ::c_int,
-        pub response: __u32,
+        pub response: ::__u32,
+    }
+
+    pub struct fanotify_response_info_header {
+        pub type_: ::__u8,
+        pub pad: ::__u8,
+        pub len: ::__u16,
+    }
+
+    pub struct fanotify_response_info_audit_rule {
+        pub hdr: fanotify_response_info_header,
+        pub rule_number: ::__u32,
+        pub subj_trust: ::__u32,
+        pub obj_trust: ::__u32,
     }
 
     pub struct sockaddr_vm {
@@ -3958,6 +3994,9 @@ pub const SND_CNT: usize = SND_MAX as usize + 1;
 pub const UINPUT_VERSION: ::c_uint = 5;
 pub const UINPUT_MAX_NAME_SIZE: usize = 80;
 
+// linux/exportfs.h
+pub const MAX_HANDLE_SZ: usize = 128;
+
 // uapi/linux/fanotify.h
 pub const FAN_ACCESS: u64 = 0x0000_0001;
 pub const FAN_MODIFY: u64 = 0x0000_0002;