securityfs_create_file — create a file in the securityfs filesystem
struct dentry * securityfs_create_file ( | const char * name, |
| umode_t mode, | |
| struct dentry * parent, | |
| void * data, | |
const struct file_operations * fops); |
namea pointer to a string containing the name of the file to create.
modethe permission that the file should have
parent
a pointer to the parent dentry for this file. This should be a
directory dentry if set. If this parameter is NULL, then the
file will be created in the root of the securityfs filesystem.
data
a pointer to something that the caller will want to get to later
on. The inode.i_private pointer will point to this value on
the open call.
fopsa pointer to a struct file_operations that should be used for this file.
This is the basic “create a file” function for securityfs. It allows for a
wide range of flexibility in creating a file, or a directory (if you
want to create a directory, the securityfs_create_dir function is
recommended to be used instead).
This function returns a pointer to a dentry if it succeeds. This
pointer must be passed to the securityfs_remove function when the file is
to be removed (no automatic cleanup happens if your module is unloaded,
you are responsible here). If an error occurs, the function will return
the error value (via ERR_PTR).
If securityfs is not enabled in the kernel, the value -ENODEV is
returned.