## GckModule GckModule — A loaded and initialized PKCS11 module. |

## Synopsis

                        GckModule;
    GckModule*          gck_module_new                      (CK_FUNCTION_LIST_PTR funcs,
                                                             guint reserved_options);
    GckModule*          gck_module_initialize               (const gchar *path,
                                                             gpointer reserved,
                                                             guint reserved_options,
                                                             GError **err);
    gboolean            gck_module_equal                    (gconstpointer module1,
                                                             gconstpointer module2);
    guint               gck_module_hash                     (gconstpointer module);
    const gchar*        gck_module_get_path                 (GckModule *self);
    CK_FUNCTION_LIST_PTR  gck_module_get_functions          (GckModule *self);
    GckModuleInfo*      gck_module_get_info                 (GckModule *self);
    GList*              gck_module_get_slots                (GckModule *self,
                                                             gboolean token_present);
                        GckModuleInfo;
    void                gck_module_info_free                (GckModuleInfo *module_info);

## Object Hierarchy

      GObject
       +----GckModule

## Properties

      "functions"                gpointer              : Read / Write / Construct Only
      "path"                     gchar*                : Read / Write / Construct Only

## Signals

      "authenticate-object"                            : Run Last
      "authenticate-slot"                              : Run Last

## Description

A GckModule object holds a loaded PKCS11 module. A PKCS11 module is a shared library.

You can load and initialize a PKCS11 module with the `gck_module_initialize()` call. If you already have a loaded and initialized module that you'd like to use with the various gck functions, then you can use `gck_module_new()`.

## Details

### GckModule

    typedef struct _GckModule GckModule;

Holds a loaded and initialized PKCS11 module.

### gck_module_new ()

    GckModule*          gck_module_new                      (CK_FUNCTION_LIST_PTR funcs,
                                                             guint reserved_options);

Create a GckModule representing a PKCS11 module. It is assumed that this the module is already initialized. In addition it will not be finalized when complete.

`funcs` : | Initialized PKCS11 function list pointer
`reserved_options` : |
Returns : | The new PKCS11 module.

### gck_module_initialize ()

    GckModule*          gck_module_initialize               (const gchar *path,
                                                             gpointer reserved,
                                                             guint reserved_options,
                                                             GError **err);

Load and initialize a PKCS11 module represented by a GckModule object.

`path` : | The file system path to the PKCS11 module to load.
`reserved` : | Extra arguments for the PKCS11 module, should usually be NULL.
`reserved_options` : | No options are currently available.
`err` : | A location to store an error resulting from a failed load.
Returns : | The loaded PKCS11 module or NULL if failed.

### gck_module_equal ()

    gboolean            gck_module_equal                    (gconstpointer module1,
                                                             gconstpointer module2);

Checks equality of two modules. Two GckModule objects can point to the same underlying PKCS11 module.

`module1` : | A pointer to the first GckModule
`module2` : | A pointer to the second GckModule
Returns : | TRUE if module1 and module2 are equal. FALSE if either is not a GckModule.

### gck_module_hash ()

    guint               gck_module_hash                     (gconstpointer module);

Create a hash value for the GckModule.

This function is intended for easily hashing a GckModule to add to a GHashTable or similar data structure.

`module` : | A pointer to a GckModule
Returns : | An integer that can be used as a hash value, or 0 if invalid.

### gck_module_get_path ()

    const gchar*        gck_module_get_path                 (GckModule *self);

Get the file path of this module. This may not be an absolute path, and usually reflects the path passed to `gck_module_initialize()`.

`self` : | The module for which to get the path.
Returns : | The path, do not modify or free this value.

### gck_module_get_functions ()

    CK_FUNCTION_LIST_PTR  gck_module_get_functions          (GckModule *self);

Get the PKCS11 function list for the module.

`self` : | The module for which to get the function list.
Returns : | The function list, do not modify this structure.

### gck_module_get_info ()

    GckModuleInfo*      gck_module_get_info                 (GckModule *self);

Get the info about a PKCS11 module.

`self` : | The module to get info for.
Returns : | The module info. Release this with `gck_module_info_free()`.

### gck_module_get_slots ()

    GList*              gck_module_get_slots                (GckModule *self,
                                                             gboolean token_present);

Get the GckSlot objects for a given module.

`self` : | The module for which to get the slots.
`token_present` : | Whether to limit only to slots with a token present.
Returns : | The possibly empty list of slots. Release this with `gck_list_unref_free()`.

### GckModuleInfo

    typedef struct {
    	guint8 pkcs11_version_major;
    	guint8 pkcs11_version_minor;

    	gchar *manufacturer_id;
    	gulong flags;

    	gchar *library_description;
    	guint8 library_version_major;
    	guint8 library_version_minor;
    } GckModuleInfo;

Holds information about the PKCS#11 module.

This structure corresponds to CK_MODULE_INFO in the PKCS11 standard. The strings are NULL terminated for easier use.

Use `gck_module_info_free()` to release this structure when done with it.

guint8 `pkcs11_version_major`; | The major version of the module.
guint8 `pkcs11_version_minor`; | The minor version of the module.
gchar *`manufacturer_id`; | The module manufacturer.
gulong `flags`; | The module PKCS#11 flags.
gchar *`library_description`; | The module description.
guint8 `library_version_major`; | The major version of the library.
guint8 `library_version_minor`; | The minor version of the library.

### gck_module_info_free ()

    void                gck_module_info_free                (GckModuleInfo *module_info);

Free a GckModuleInfo structure.

`module_info` : | The module info to free, or NULL.

## Property Details

### The `"functions"` property

      "functions"                gpointer              : Read / Write / Construct Only

The raw PKCS#11 function list for the module.

This points to a CK_FUNCTION_LIST structure.

### The `"path"` property

      "path"                     gchar*                : Read / Write / Construct Only

The PKCS#11 module file path.

This may be set to NULL if this object was created from an already initialized module via the `gck_module_new()` function.

Default value: NULL

## Signal Details

### The `"authenticate-object"` signal

    gboolean            user_function                      (GckModule *module,
                                                            GckObject *object,
                                                            gchar     *label,
                                                            gpointer   password,
                                                            gpointer   user_data)      : Run Last

This signal is emitted when a password is needed to authenticate a PKCS#11 object like a key. If the module prompts for passwords itself, then this signal will not be emitted.

`module` : | The module.
`object` : | The object to be authenticated.
`label` : | A displayable label which describes the object.
`password` : | A gchar** where a password should be returned.
`user_data` : | user data set when the signal handler was connected.
Returns : | FALSE if the user cancelled, TRUE if we should proceed.

### The `"authenticate-slot"` signal

    gboolean            user_function                      (GckModule *module,
                                                            GckSlot   *slot,
                                                            gchar     *string,
                                                            gpointer   password,
                                                            gpointer   user_data)      : Run Last

This signal is emitted when a password is needed to authenticate a PKCS#11 slot. If the module prompts for passwords itself, then this signal will not be emitted.

`module` : | The module
`slot` : | The slot to be authenticated.
`string` : | A displayable label which describes the object.
`password` : | A gchar** where a password should be returned.
`user_data` : | user data set when the signal handler was connected.
Returns : | FALSE if the user cancelled, TRUE if we should proceed.