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SECURITYFS_CREATE_FI(9) | Security Framework | SECURITYFS_CREATE_FI(9) |
NAME¶
securityfs_create_file - create a file in the securityfs filesystemSYNOPSIS¶
struct dentry *
securityfs_create_file(const char * name,
umode_t mode,
struct dentry * parent,
void * data,
const struct file_operations * fops);
ARGUMENTS¶
namea pointer to a string containing the name of the file to
create.
mode
the 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.
fops
a pointer to a struct file_operations that should be used
for this file.
DESCRIPTION¶
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 erorr value (via ERR_PTR). If securityfs is not enabled in the kernel, the value -ENODEV is returned.COPYRIGHT¶
May 2018 | Kernel Hackers Manual 3.16 |