+/*
+ * Copyright (c) 2014-2015 Dmitry V. Levin <ldv@altlinux.org>
+ * Copyright (c) 2014-2019 The strace developers.
+ * All rights reserved.
+ *
+ * SPDX-License-Identifier: LGPL-2.1-or-later
+ */
+
#include "defs.h"
-#include <linux/fanotify.h>
-static const struct xlat fan_classes[] = {
- XLAT(FAN_CLASS_NOTIF),
- XLAT(FAN_CLASS_CONTENT),
- XLAT(FAN_CLASS_PRE_CONTENT),
- XLAT_END
-};
+#include "xlat/fan_classes.h"
+#include "xlat/fan_init_flags.h"
-static const struct xlat fan_init_flags[] = {
- XLAT(FAN_CLOEXEC),
- XLAT(FAN_NONBLOCK),
- XLAT(FAN_UNLIMITED_QUEUE),
- XLAT(FAN_UNLIMITED_MARKS),
- XLAT_END
-};
+#ifndef FAN_ALL_CLASS_BITS
+# define FAN_ALL_CLASS_BITS (FAN_CLASS_NOTIF | FAN_CLASS_CONTENT | FAN_CLASS_PRE_CONTENT)
+#endif
+#ifndef FAN_NOFD
+# define FAN_NOFD -1
+#endif
-int
-sys_fanotify_init(struct tcb *tcp)
+SYS_FUNC(fanotify_init)
{
- unsigned flags;
-
- if (exiting(tcp))
- return 0;
+ unsigned int flags = tcp->u_arg[0];
- flags = tcp->u_arg[0];
printxval(fan_classes, flags & FAN_ALL_CLASS_BITS, "FAN_CLASS_???");
flags &= ~FAN_ALL_CLASS_BITS;
if (flags) {
tprints(", ");
tprint_open_modes((unsigned) tcp->u_arg[1]);
- return 0;
+ return RVAL_DECODED | RVAL_FD;
}
-static const struct xlat fan_mark_flags[] = {
- XLAT(FAN_MARK_ADD),
- XLAT(FAN_MARK_REMOVE),
- XLAT(FAN_MARK_DONT_FOLLOW),
- XLAT(FAN_MARK_ONLYDIR),
- XLAT(FAN_MARK_MOUNT),
- XLAT(FAN_MARK_IGNORED_MASK),
- XLAT(FAN_MARK_IGNORED_SURV_MODIFY),
- XLAT(FAN_MARK_FLUSH),
- XLAT_END
-};
-
-static const struct xlat fan_event_flags[] = {
- XLAT(FAN_ACCESS),
- XLAT(FAN_MODIFY),
- XLAT(FAN_CLOSE),
- XLAT(FAN_CLOSE_WRITE),
- XLAT(FAN_CLOSE_NOWRITE),
- XLAT(FAN_OPEN),
- XLAT(FAN_Q_OVERFLOW),
- XLAT(FAN_OPEN_PERM),
- XLAT(FAN_ACCESS_PERM),
- XLAT(FAN_ONDIR),
- XLAT(FAN_EVENT_ON_CHILD),
- XLAT_END
-};
+#include "xlat/fan_mark_flags.h"
+#include "xlat/fan_event_flags.h"
-int
-sys_fanotify_mark(struct tcb *tcp)
+SYS_FUNC(fanotify_mark)
{
- if (exiting(tcp))
- return 0;
-
printfd(tcp, tcp->u_arg[0]);
tprints(", ");
- printflags(fan_mark_flags, (unsigned) tcp->u_arg[1], "FAN_MARK_???");
+ printflags(fan_mark_flags, tcp->u_arg[1], "FAN_MARK_???");
tprints(", ");
- printflags(fan_event_flags, tcp->u_arg[2], "FAN_???");
+ /*
+ * the mask argument is defined as 64-bit,
+ * but kernel uses the lower 32 bits only.
+ */
+ unsigned long long mask = 0;
+ int argn = getllval(tcp, &mask, 2);
+#ifdef HPPA
+ /* Parsic is weird. See arch/parisc/kernel/sys_parisc32.c. */
+ mask = (mask << 32) | (mask >> 32);
+#endif
+ printflags64(fan_event_flags, mask, "FAN_???");
tprints(", ");
- if ((int) tcp->u_arg[3] == FAN_NOFD)
- tprints("FAN_NOFD, ");
+ if ((int) tcp->u_arg[argn] == FAN_NOFD)
+ print_xlat_d(FAN_NOFD);
else
- print_dirfd(tcp, tcp->u_arg[3]);
- printpath(tcp, tcp->u_arg[4]);
+ print_dirfd(tcp, tcp->u_arg[argn]);
+ tprints(", ");
+ printpath(tcp, tcp->u_arg[argn + 1]);
- return 0;
+ return RVAL_DECODED;
}