mirror of
https://gitlab.freedesktop.org/NetworkManager/NetworkManager.git
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025235e00f
Moving the PPP manager to a separate plugin that is loaded when needed has the advantage of slightly reducing memory footprint and makes it possible to install the PPP support only where needed. https://bugzilla.gnome.org/show_bug.cgi?id=773482
142 lines
4 KiB
C
142 lines
4 KiB
C
/* -*- Mode: C; tab-width: 4; indent-tabs-mode: t; c-basic-offset: 4 -*- */
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/* NetworkManager -- Network link manager
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Copyright (C) 2016 Red Hat, Inc.
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*/
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#include "nm-default.h"
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#include "nm-ppp-manager-call.h"
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <errno.h>
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#include "nm-manager.h"
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#include "nm-core-utils.h"
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#include "nm-ppp-plugin-api.h"
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#define PPP_PLUGIN_PATH NMPLUGINDIR "/libnm-ppp-plugin.so"
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/*****************************************************************************/
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static NMPPPOps *ppp_ops = NULL;
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NMPPPManager *
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nm_ppp_manager_create (const char *iface, GError **error)
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{
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NMPPPManager *ret;
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GModule *plugin;
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GError *error_local = NULL;
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NMPPPOps *ops;
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struct stat st;
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int errsv;
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if (G_UNLIKELY (!ppp_ops)) {
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if (stat (PPP_PLUGIN_PATH, &st) != 0) {
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errsv = errno;
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g_set_error_literal (error,
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NM_MANAGER_ERROR, NM_MANAGER_ERROR_MISSING_PLUGIN,
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"the PPP plugin " PPP_PLUGIN_PATH " is not installed");
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return NULL;
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}
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if (!nm_utils_validate_plugin (PPP_PLUGIN_PATH, &st, &error_local)) {
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g_set_error (error, NM_MANAGER_ERROR, NM_MANAGER_ERROR_MISSING_PLUGIN,
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"could not load the PPP plugin " PPP_PLUGIN_PATH ": %s",
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error_local->message);
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g_clear_error (&error_local);
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return NULL;
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}
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plugin = g_module_open (PPP_PLUGIN_PATH, G_MODULE_BIND_LOCAL);
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if (!plugin) {
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g_set_error (error, NM_MANAGER_ERROR, NM_MANAGER_ERROR_MISSING_PLUGIN,
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"could not load the PPP plugin " PPP_PLUGIN_PATH ": %s",
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g_module_error ());
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return NULL;
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}
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if (!g_module_symbol (plugin, "ppp_ops", (gpointer) &ops)) {
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g_set_error (error, NM_MANAGER_ERROR, NM_MANAGER_ERROR_MISSING_PLUGIN,
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"error loading the PPP plugin: %s", g_module_error ());
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return NULL;
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}
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/* after loading glib types from the plugin, we cannot unload the library anymore.
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* Make it resident. */
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g_module_make_resident (plugin);
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nm_assert (ops);
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nm_assert (ops->create);
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nm_assert (ops->start);
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nm_assert (ops->stop_async);
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nm_assert (ops->stop_finish);
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nm_assert (ops->stop_sync);
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ppp_ops = ops;
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nm_log_info (LOGD_CORE | LOGD_PPP, "loaded PPP plugin " PPP_PLUGIN_PATH);
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}
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ret = ppp_ops->create (iface);
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g_return_val_if_fail (ret, NULL);
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return ret;
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}
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gboolean
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nm_ppp_manager_start (NMPPPManager *self,
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NMActRequest *req,
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const char *ppp_name,
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guint32 timeout_secs,
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guint baud_override,
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GError **err)
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{
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g_return_val_if_fail (ppp_ops, FALSE);
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return ppp_ops->start (self, req, ppp_name, timeout_secs, baud_override, err);
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}
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void
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nm_ppp_manager_stop_async (NMPPPManager *self,
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GCancellable *cancellable,
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GAsyncReadyCallback callback,
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gpointer user_data)
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{
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g_return_if_fail (ppp_ops);
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ppp_ops->stop_async (self, cancellable, callback, user_data);
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}
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gboolean
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nm_ppp_manager_stop_finish (NMPPPManager *self,
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GAsyncResult *res,
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GError **error)
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{
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g_return_val_if_fail (ppp_ops, FALSE);
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return ppp_ops->stop_finish (self, res, error);
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}
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void
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nm_ppp_manager_stop_sync (NMPPPManager *self)
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{
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g_return_if_fail (ppp_ops);
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ppp_ops->stop_sync (self);
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}
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