From b79bd43f9ab3bf0dfd4744dee406782f0329134a Mon Sep 17 00:00:00 2001
From: Mark Johnston <markj@FreeBSD.org>
Date: Thu, 3 Jul 2025 19:52:31 +0000
Subject: [PATCH] libsysdecode: Add support for decoding inotify syscall flags

MFC after:	3 months
Sponsored by:	Klara, Inc.
---
 lib/libsysdecode/Makefile    | 1 +
 lib/libsysdecode/flags.c     | 9 ++++++++-
 lib/libsysdecode/mktables    | 1 +
 lib/libsysdecode/sysdecode.h | 1 +
 4 files changed, 11 insertions(+), 1 deletion(-)

diff --git a/lib/libsysdecode/Makefile b/lib/libsysdecode/Makefile
index b01877bb8bb..ca020552a6e 100644
--- a/lib/libsysdecode/Makefile
+++ b/lib/libsysdecode/Makefile
@@ -84,6 +84,7 @@ MLINKS+=sysdecode_mask.3 sysdecode_accessmode.3 \
 	sysdecode_mask.3 sysdecode_fileflags.3 \
 	sysdecode_mask.3 sysdecode_filemode.3 \
 	sysdecode_mask.3 sysdecode_flock_operation.3 \
+	sysdecode_mask.3 sysdecode_inotifyflags.3 \
 	sysdecode_mask.3 sysdecode_mlockall_flags.3 \
 	sysdecode_mask.3 sysdecode_mmap_flags.3 \
 	sysdecode_mask.3 sysdecode_mmap_prot.3 \
diff --git a/lib/libsysdecode/flags.c b/lib/libsysdecode/flags.c
index 32829d35dbe..dc09c574796 100644
--- a/lib/libsysdecode/flags.c
+++ b/lib/libsysdecode/flags.c
@@ -23,7 +23,6 @@
  * SUCH DAMAGE.
  */
 
-#include <sys/cdefs.h>
 #define L2CAP_SOCKET_CHECKED
 
 #include <sys/types.h>
@@ -31,6 +30,7 @@
 #include <sys/capsicum.h>
 #include <sys/event.h>
 #include <sys/extattr.h>
+#include <sys/inotify.h>
 #include <sys/linker.h>
 #include <sys/mman.h>
 #include <sys/mount.h>
@@ -351,6 +351,13 @@ sysdecode_getrusage_who(int who)
 	return (lookup_value(rusage, who));
 }
 
+bool
+sysdecode_inotifyflags(FILE *fp, int flag, int *rem)
+{
+
+	return (print_mask_int(fp, inotifyflags, flag, rem));
+}
+
 static struct name_table kevent_user_ffctrl[] = {
 	X(NOTE_FFNOP) X(NOTE_FFAND) X(NOTE_FFOR) X(NOTE_FFCOPY)
 	XEND
diff --git a/lib/libsysdecode/mktables b/lib/libsysdecode/mktables
index 5d7be2aad3c..6b4f7940266 100644
--- a/lib/libsysdecode/mktables
+++ b/lib/libsysdecode/mktables
@@ -98,6 +98,7 @@ gen_table "extattrns"       "EXTATTR_NAMESPACE_[A-Z]+[[:space:]]+0x[0-9]+" "sys/
 gen_table "fadvisebehav"    "POSIX_FADV_[A-Z]+[[:space:]]+[0-9]+"          "sys/fcntl.h"
 gen_table "openflags"       "O_[A-Z]+[[:space:]]+0x[0-9A-Fa-f]+"           "sys/fcntl.h"	"O_RDONLY|O_RDWR|O_WRONLY"
 gen_table "flockops"        "LOCK_[A-Z]+[[:space:]]+0x[0-9]+"              "sys/fcntl.h"
+gen_table "inotifyflags"    "IN_[A-Z_]+[[:space:]]+0x[0-9]+"               "sys/inotify.h"      "IN_CLOEXEC|IN_NONBLOCK"
 gen_table "kldsymcmd"       "KLDSYM_[A-Z]+[[:space:]]+[0-9]+"              "sys/linker.h"
 gen_table "kldunloadfflags" "LINKER_UNLOAD_[A-Z]+[[:space:]]+[0-9]+"       "sys/linker.h"
 gen_table "lio_listiomodes" "LIO_(NO)?WAIT[[:space:]]+[0-9]+"              "aio.h"
diff --git a/lib/libsysdecode/sysdecode.h b/lib/libsysdecode/sysdecode.h
index 8dc0bbea6f0..c95d7f71379 100644
--- a/lib/libsysdecode/sysdecode.h
+++ b/lib/libsysdecode/sysdecode.h
@@ -61,6 +61,7 @@ const char *sysdecode_getfsstat_mode(int _mode);
 const char *sysdecode_getrusage_who(int _who);
 const char *sysdecode_idtype(int _idtype);
 const char *sysdecode_ioctlname(unsigned long _val);
+bool	sysdecode_inotifyflags(FILE *_fp, int _flags, int *_rem);
 const char *sysdecode_ipproto(int _protocol);
 void	sysdecode_kevent_fflags(FILE *_fp, short _filter, int _fflags,
 	    int _base);