NMVpnEditorPlugin: libnm Reference Manual

## NMVpnEditorPlugin NMVpnEditorPlugin |

## Functions

NMVpnEditorPlugin * | (*NMVpnEditorPluginFactory) ()
NMVpnEditorPlugin * | nm_vpn_editor_plugin_factory ()
NMVpnEditor * | nm_vpn_editor_plugin_get_editor ()
NMVpnEditorPluginCapability | nm_vpn_editor_plugin_get_capabilities ()
gsize | nm_vpn_editor_plugin_get_vt ()
NMConnection * | nm_vpn_editor_plugin_import ()
gboolean | nm_vpn_editor_plugin_export ()
char * | nm_vpn_editor_plugin_get_suggested_filename ()
NMVpnEditorPlugin * | nm_vpn_editor_plugin_load_from_file ()
NMVpnEditorPlugin * | nm_vpn_editor_plugin_load ()
struct _NMVpnPluginInfo * | nm_vpn_editor_plugin_get_plugin_info ()
void | nm_vpn_editor_plugin_set_plugin_info ()

## Properties

gchar * | description | Read
gchar * | name | Read
gchar * | service | Read

## Signals

void | changed | Run First

## Types and Values

enum | NMVpnEditorPluginCapability
#define | NM_VPN_EDITOR_PLUGIN_NAME
#define | NM_VPN_EDITOR_PLUGIN_DESCRIPTION
#define | NM_VPN_EDITOR_PLUGIN_SERVICE
| NMVpnEditorPluginInterface
| NMVpnEditor
| NMVpnEditorPluginVT

## Object Hierarchy

        GFlags
        ╰── NMVpnEditorPluginCapability
        GInterface
        ├── NMVpnEditor
        ╰── NMVpnEditorPlugin

## Prerequisites

NMVpnEditor requires GObject.

## Description

## Functions

### NMVpnEditorPluginFactory ()

    NMVpnEditorPlugin *
    (*NMVpnEditorPluginFactory) (GError **error);

### nm_vpn_editor_plugin_factory ()

    NMVpnEditorPlugin *
    nm_vpn_editor_plugin_factory (GError **error);

### nm_vpn_editor_plugin_get_editor ()

    NMVpnEditor *
    nm_vpn_editor_plugin_get_editor (NMVpnEditorPlugin *plugin,
                                     NMConnection *connection,
                                     GError **error);

#### Parameters

plugin | the NMVpnEditorPlugin |
connection | the NMConnection to be edited |
error | on return, an error or `NULL` |

#### Returns

a new NMVpnEditor or `NULL` on error.

[transfer full]

### nm_vpn_editor_plugin_get_capabilities ()

    NMVpnEditorPluginCapability
    nm_vpn_editor_plugin_get_capabilities (NMVpnEditorPlugin *plugin);

### nm_vpn_editor_plugin_get_vt ()

    gsize
    nm_vpn_editor_plugin_get_vt (NMVpnEditorPlugin *plugin,
                                 NMVpnEditorPluginVT *vt,
                                 gsize vt_size);

Returns an opaque VT function table for the plugin to extend functionality. The actual meaning of NMVpnEditorPluginVT is not defined in public API of libnm, instead it must be agreed by both the plugin and the caller. See the header-only file 'nm-vpn-editor-plugin-call.h' which defines the meaning.

#### Parameters

plugin | the NMVpnEditorPlugin |
vt | buffer to be filled with the VT table of the plugin. | [out]
vt_size | the size of the buffer. Can be 0 to only query the size of plugin's VT. |

#### Returns

the actual size of the `plugin` 's virtual function table.

Since: 1.4

### nm_vpn_editor_plugin_import ()

    NMConnection *
    nm_vpn_editor_plugin_import (NMVpnEditorPlugin *plugin,
                                 const char *path,
                                 GError **error);

#### Parameters

plugin | the NMVpnEditorPlugin |
path | full path to the file to attempt to read into a new NMConnection |
error | on return, an error or `NULL` |

#### Returns

a new NMConnection imported from `path` , or `NULL` on error or if the file at `path` was not recognized by this plugin.

[transfer full]

### nm_vpn_editor_plugin_export ()

    gboolean
    nm_vpn_editor_plugin_export (NMVpnEditorPlugin *plugin,
                                 const char *path,
                                 NMConnection *connection,
                                 GError **error);

### nm_vpn_editor_plugin_get_suggested_filename ()

    char *
    nm_vpn_editor_plugin_get_suggested_filename
                                   (NMVpnEditorPlugin *plugin,
                                    NMConnection *connection);

### nm_vpn_editor_plugin_load_from_file ()

    NMVpnEditorPlugin *
    nm_vpn_editor_plugin_load_from_file (const char *plugin_name,
                                         const char *check_service,
                                         int check_owner,
                                         NMUtilsCheckFilePredicate check_file,
                                         gpointer user_data,
                                         GError **error);

Load the shared libary `plugin_name` and create a new NMVpnEditorPlugin instace via the NMVpnEditorPluginFactory function.

If `plugin_name` is not an absolute path name, it assumes the file is in the plugin directory of NetworkManager. In any case, the call will do certain checks on the file before passing it to dlopen. A consequence for that is, that you cannot omit the ".so" suffix as you could for `nm_vpn_editor_plugin_load()`.

#### Parameters

plugin_name | The path or name of the shared library to load. The path must either be an absolute filename to an existing file. Alternatively, it can be the name (without path) of a library in the plugin directory of NetworkManager. |
check_service | if not-null, check that the loaded plugin advertises the given service. |
check_owner | if non-negative, check whether the file is owned by UID `check_owner` or by root. In this case also check that the file is not writable by anybody else. |
check_file | optional callback to validate the file prior to loading the shared library. | [scope call]
user_data | user data for `check_file` |
error | on failure the error reason. |

#### Returns

a new plugin instance or `NULL` on error.

[transfer full]

Since: 1.2

### nm_vpn_editor_plugin_load ()

    NMVpnEditorPlugin *
    nm_vpn_editor_plugin_load (const char *plugin_name,
                               const char *check_service,
                               GError **error);

Load the shared libary `plugin_name` and create a new NMVpnEditorPlugin instace via the NMVpnEditorPluginFactory function.

This is similar to `nm_vpn_editor_plugin_load_from_file()`, but it does no validation of the plugin name, instead passes it directly to `dlopen()`. If you have the full path to a plugin file, `nm_vpn_editor_plugin_load_from_file()` is preferred.

#### Parameters

plugin_name | The name of the shared library to load. This path will be directly passed to `dlopen()` without further checks. |
check_service | if not-null, check that the loaded plugin advertises the given service. |
error | on failure the error reason. |

#### Returns

a new plugin instance or `NULL` on error.

[transfer full]

Since: 1.4

### nm_vpn_editor_plugin_get_plugin_info ()

    struct _NMVpnPluginInfo *
    nm_vpn_editor_plugin_get_plugin_info (NMVpnEditorPlugin *plugin);

#### Parameters

plugin | the NMVpnEditorPlugin instance |

#### Returns

if set, return the NMVpnPluginInfo instance.

[transfer none]

Since: 1.4

### nm_vpn_editor_plugin_set_plugin_info ()

    void
    nm_vpn_editor_plugin_set_plugin_info (NMVpnEditorPlugin *plugin,
                                          struct _NMVpnPluginInfo *plugin_info);

Set or clear the plugin-info instance. This takes a weak reference on `plugin_info` , to avoid circular reference as the plugin-info might also reference the editor-plugin.

#### Parameters

plugin | the NMVpnEditorPlugin instance |
plugin_info | a NMVpnPluginInfo instance or `NULL`. | [allow-none]

Since: 1.4

## Types and Values

### enum NMVpnEditorPluginCapability

Flags that indicate certain capabilities of the plugin to editor programs.

#### Members

NM_VPN_EDITOR_PLUGIN_CAPABILITY_NONE | unknown or no capability |
NM_VPN_EDITOR_PLUGIN_CAPABILITY_IMPORT | the plugin can import new connections |
NM_VPN_EDITOR_PLUGIN_CAPABILITY_EXPORT | the plugin can export connections |
NM_VPN_EDITOR_PLUGIN_CAPABILITY_IPV6 | the plugin supports IPv6 addressing |

### NM_VPN_EDITOR_PLUGIN_NAME

    #define NM_VPN_EDITOR_PLUGIN_NAME "name"

### NM_VPN_EDITOR_PLUGIN_DESCRIPTION

    #define NM_VPN_EDITOR_PLUGIN_DESCRIPTION "description"

### NM_VPN_EDITOR_PLUGIN_SERVICE

    #define NM_VPN_EDITOR_PLUGIN_SERVICE "service"

### NMVpnEditorPluginInterface

    typedef struct {
    	GTypeInterface g_iface;

    	NMVpnEditor * (*get_editor) (NMVpnEditorPlugin *plugin,
    	                             NMConnection *connection,
    	                             GError **error);

    	NMVpnEditorPluginCapability (*get_capabilities) (NMVpnEditorPlugin *plugin);

    	NMConnection * (*import_from_file) (NMVpnEditorPlugin *plugin,
    	                                    const char *path,
    	                                    GError **error);

    	gboolean (*export_to_file) (NMVpnEditorPlugin *plugin,
    	                            const char *path,
    	                            NMConnection *connection,
    	                            GError **error);

    	char * (*get_suggested_filename) (NMVpnEditorPlugin *plugin, NMConnection *connection);

    	void (*notify_plugin_info_set) (NMVpnEditorPlugin *plugin,
    	                                struct _NMVpnPluginInfo *plugin_info);

    	const NMVpnEditorPluginVT *(*get_vt) (NMVpnEditorPlugin *plugin,
    	                                      gsize *out_vt_size);
    } NMVpnEditorPluginInterface;

Interface for VPN editor plugins.

#### Members

`get_editor` () | returns an NMVpnEditor, pre-filled with values from `connection` if non-`NULL`. |
`get_capabilities` () | returns a bitmask of capabilities. |
`import_from_file` () | Try to import a connection from the specified path. On success, return a partial NMConnection object. On error, return `NULL` and set `error` with additional information. Note that `error` can be `NULL`, in which case no additional error information should be provided. |
`export_to_file` () | Export the given connection to the specified path. Return `TRUE` on success. On error, return `FALSE` and set `error` with additional error information. Note that `error` can be `NULL`, in which case no additional error information should be provided. |
`get_suggested_filename` () | For a given connection, return a suggested file name. Returned value will be `NULL` or a suggested file name to be freed by the caller. |
`notify_plugin_info_set` () |  |
`get_vt` () | return a virtual function table to implement further functions in the plugin, without requiring to update libnm. Used by `nm_vpn_editor_plugin_get_vt()`. |

### NMVpnEditor

    typedef struct _NMVpnEditor NMVpnEditor;

### NMVpnEditorPluginVT

    typedef struct _NMVpnEditorPluginVT NMVpnEditorPluginVT;

## Property Details

### The `“description”` property

      “description”              gchar *

Longer description of the VPN plugin.

Flags: Read

Default value: NULL

### The `“name”` property

      “name”                     gchar *

Short display name of the VPN plugin.

Flags: Read

Default value: NULL

### The `“service”` property

      “service”                  gchar *

D-Bus service name of the plugin's VPN service.

Flags: Read

Default value: NULL

## Signal Details

### The `“changed”` signal

    void
    user_function (NMVpnEditor *nmvpneditor,
                   gpointer     user_data)

Flags: Run First