static void setup(void)
{
int fd;
sprintf(fname, "fname_%d", getpid());
fd = SAFE_OPEN(fname, O_RDWR | O_CREAT, 0644);
SAFE_CLOSE(fd);
sprintf(sname, "symlink_%d", getpid());
SAFE_SYMLINK(fname, sname);
sprintf(dir, "dir_%d", getpid());
SAFE_MKDIR(dir, 0755);
fd_notify = SAFE_FANOTIFY_INIT(FAN_CLASS_NOTIF | FAN_NONBLOCK,
O_RDONLY);
}
static void create_fanotify_groups(unsigned int ondir)
{
unsigned int i, onchild;
int ret;
for (i = 0; i < NUM_GROUPS; i++) {
fd_notify[i] = SAFE_FANOTIFY_INIT(FAN_CLASS_NOTIF |
FAN_NONBLOCK,
O_RDONLY);
/* Add mount mark for each group without MODIFY event */
onchild = (i == 0) ? FAN_EVENT_ON_CHILD | ondir : 0;
ret = fanotify_mark(fd_notify[i],
FAN_MARK_ADD | FAN_MARK_MOUNT,
FAN_CLOSE_NOWRITE | onchild,
AT_FDCWD, ".");
if (ret < 0) {
tst_brk(TBROK | TERRNO,
"fanotify_mark(%d, FAN_MARK_ADD | "
"FAN_MARK_MOUNT, FAN_MODIFY%s, AT_FDCWD,"
" '.') failed", fd_notify[i],
ondir ? " | FAN_ONDIR" : "");
}
/*
* Add inode mark on parent for each group with MODIFY
* event, but only one group requests events on child.
* The one mark with FAN_EVENT_ON_CHILD is needed for
* setting the DCACHE_FSNOTIFY_PARENT_WATCHED dentry
* flag.
*/
ret = fanotify_mark(fd_notify[i], FAN_MARK_ADD,
FAN_MODIFY | ondir | onchild,
AT_FDCWD, ".");
if (ret < 0) {
tst_brk(TBROK | TERRNO,
"fanotify_mark(%d, FAN_MARK_ADD, "
"FAN_MODIFY%s%s, AT_FDCWD, '.') failed",
fd_notify[i],
ondir ? " | FAN_ONDIR" : "",
onchild ? " | FAN_EVENT_ON_CHILD" : "");
}
}
}