diff options
Diffstat (limited to 'src/settings/plugins/example/nm-example-connection.c')
| -rw-r--r-- | src/settings/plugins/example/nm-example-connection.c | 191 |
1 files changed, 191 insertions, 0 deletions
diff --git a/src/settings/plugins/example/nm-example-connection.c b/src/settings/plugins/example/nm-example-connection.c new file mode 100644 index 00000000..e4a69f9b --- /dev/null +++ b/src/settings/plugins/example/nm-example-connection.c @@ -0,0 +1,191 @@ +/* -*- Mode: C; tab-width: 4; indent-tabs-mode: t; c-basic-offset: 4 -*- */ +/* NetworkManager system settings service - keyfile plugin + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License along + * with this program; if not, write to the Free Software Foundation, Inc., + * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. + * + * Copyright (C) 2012 Red Hat, Inc. + */ + +#include <string.h> +#include <glib/gstdio.h> +#include <NetworkManager.h> +#include <nm-setting-connection.h> +#include <nm-utils.h> + +#include "nm-system-config-interface.h" +#include "nm-dbus-glib-types.h" +#include "nm-example-connection.h" +#include "common.h" + +/* GObject boilerplate; this object is a subclass of NMSettingsConnection + * which is specified by the NM_TYPE_SETTINGS_CONNECTION bit here. That + * in turn is a subclass of NMConnection, so it ends up that NMExampleConnection + * is a subclass of NMConnection too. + */ +G_DEFINE_TYPE (NMExampleConnection, nm_example_connection, NM_TYPE_SETTINGS_CONNECTION) + +#define NM_EXAMPLE_CONNECTION_GET_PRIVATE(o) (G_TYPE_INSTANCE_GET_PRIVATE ((o), NM_TYPE_EXAMPLE_CONNECTION, NMExampleConnectionPrivate)) + +/* Object private instance data */ +typedef struct { + char *path; +} NMExampleConnectionPrivate; + + +/* Creates a new object which encapsulates an on-disk connection and any + * plugin-specific operations or data. + */ +NMExampleConnection * +nm_example_connection_new (const char *full_path, + NMConnection *source, + GError **error) +{ + GObject *object; + NMExampleConnectionPrivate *priv; + NMConnection *tmp; + const char *uuid; + + g_return_val_if_fail (full_path != NULL, NULL); + + /* If we're given a connection already, prefer that instead of re-reading */ + if (source) + tmp = g_object_ref (source); + else { + /* Read the data offdisk and translate it into a simple NMConnection object */ + tmp = connection_from_file (full_path, error); + if (!tmp) + return NULL; + } + + /* Actually create the new NMExampleConnection object */ + object = (GObject *) g_object_new (NM_TYPE_EXAMPLE_CONNECTION, NULL); + if (!object) + goto out; + + priv = NM_EXAMPLE_CONNECTION_GET_PRIVATE (object); + priv->path = g_strdup (full_path); + + /* Update our settings with what was read from the file or what got passed + * in as a source NMConnection. + */ + if (!nm_settings_connection_replace_settings (NM_SETTINGS_CONNECTION (object), tmp, error)) { + g_object_unref (object); + object = NULL; + goto out; + } + + /* Make sure we have a UUID; just a sanity check */ + uuid = nm_connection_get_uuid (NM_CONNECTION (object)); + if (!uuid) { + g_set_error (error, EXAMPLE_PLUGIN_ERROR, 0, + "Connection in file %s had no UUID", full_path); + g_object_unref (object); + object = NULL; + } + +out: + g_object_unref (tmp); + return (NMExampleConnection *) object; +} + +const char * +nm_example_connection_get_path (NMExampleConnection *self) +{ + g_return_val_if_fail (NM_IS_EXAMPLE_CONNECTION (self), NULL); + + /* Simple accessor that returns the file path from our private instance data */ + return NM_EXAMPLE_CONNECTION_GET_PRIVATE (self)->path; +} + +static void +commit_changes (NMSettingsConnection *connection, + NMSettingsConnectionCommitFunc callback, + gpointer user_data) +{ + NMExampleConnectionPrivate *priv = NM_EXAMPLE_CONNECTION_GET_PRIVATE (connection); + char *path = NULL; + GError *error = NULL; + + /* Write the new connection data out to disk. This function passes + * back the path of the file it wrote out so that we know what that + * path is if the connection is a completely new one. + */ + if (!write_connection (NM_CONNECTION (connection), priv->path, &path, &error)) { + callback (connection, error, user_data); + g_clear_error (&error); + return; + } + + /* Update the filename if it changed */ + if (path) { + g_free (priv->path); + priv->path = path; + } + + /* Chain up to parent for generic commit stuff */ + NM_SETTINGS_CONNECTION_CLASS (nm_example_connection_parent_class)->commit_changes (connection, + callback, + user_data); +} + +static void +do_delete (NMSettingsConnection *connection, + NMSettingsConnectionDeleteFunc callback, + gpointer user_data) +{ + NMExampleConnectionPrivate *priv = NM_EXAMPLE_CONNECTION_GET_PRIVATE (connection); + + g_unlink (priv->path); + + /* Chain up to parent for generic deletion stuff */ + NM_SETTINGS_CONNECTION_CLASS (nm_example_connection_parent_class)->delete (connection, + callback, + user_data); +} + +/**************************************************************/ + +static void +nm_example_connection_init (NMExampleConnection *connection) +{ +} + +static void +finalize (GObject *object) +{ + NMExampleConnectionPrivate *priv = NM_EXAMPLE_CONNECTION_GET_PRIVATE (object); + + /* Zero out any secrets so we don't leave them in memory */ + nm_connection_clear_secrets (NM_CONNECTION (object)); + + g_free (priv->path); + + G_OBJECT_CLASS (nm_example_connection_parent_class)->finalize (object); +} + +static void +nm_example_connection_class_init (NMExampleConnectionClass *keyfile_connection_class) +{ + GObjectClass *object_class = G_OBJECT_CLASS (keyfile_connection_class); + NMSettingsConnectionClass *settings_class = NM_SETTINGS_CONNECTION_CLASS (keyfile_connection_class); + + /* Tells GObject to allocate and zero our instance data pointer */ + g_type_class_add_private (keyfile_connection_class, sizeof (NMExampleConnectionPrivate)); + + /* Overrides of various superclass methods */ + object_class->finalize = finalize; + settings_class->commit_changes = commit_changes; + settings_class->delete = do_delete; +} |