strace/fanotify.c
Dmitry V. Levin 99db95dd03 Implement fanotify_init and fanotify_mark decoding
* fanotify.c: New file.
* linux/fanotify.h: Likewise.
* Makefile.am (strace_SOURCES): Add fanotify.c.
(EXTRA_DIST): Add linux/fanotify.h.
* defs.h (print_dirfd): New prototype.
* file.c (print_dirfd): Export.
* linux/dummy.h (sys_fanotify_init, sys_fanotify_mark): Remove.
* linux/syscall.h (sys_fanotify_init, sys_fanotify_mark): New
prototypes.
* pathtrace.c (pathtrace_match): Handle sys_fanotify_init and
sys_fanotify_mark.
2014-02-05 04:55:21 +00:00

87 lines
1.7 KiB
C

#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
};
static const struct xlat fan_init_flags[] = {
XLAT(FAN_CLOEXEC),
XLAT(FAN_NONBLOCK),
XLAT(FAN_UNLIMITED_QUEUE),
XLAT(FAN_UNLIMITED_MARKS),
XLAT_END
};
int
sys_fanotify_init(struct tcb *tcp)
{
unsigned flags;
if (exiting(tcp))
return 0;
flags = tcp->u_arg[0];
printxval(fan_classes, flags & FAN_ALL_CLASS_BITS, "FAN_CLASS_???");
flags &= ~FAN_ALL_CLASS_BITS;
if (flags) {
tprints("|");
printflags(fan_init_flags, flags, "FAN_???");
}
tprints(", ");
tprint_open_modes((unsigned) tcp->u_arg[1]);
return 0;
}
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
};
int
sys_fanotify_mark(struct tcb *tcp)
{
if (exiting(tcp))
return 0;
printfd(tcp, tcp->u_arg[0]);
tprints(", ");
printflags(fan_mark_flags, (unsigned) tcp->u_arg[1], "FAN_MARK_???");
tprints(", ");
printflags(fan_event_flags, tcp->u_arg[2], "FAN_???");
tprints(", ");
if ((int) tcp->u_arg[3] == FAN_NOFD)
tprints("FAN_NOFD, ");
else
print_dirfd(tcp, tcp->u_arg[3]);
printpath(tcp, tcp->u_arg[4]);
return 0;
}