Files
ModemManager/src/mm-port-net.c
Aleksander Morgado 032a86915a port-net: new 'MMPortNet' object with netlink capabilities
Right now just with the support to setup link properties like up/down
state or the link mtu.

This features are required when using QMAP based multiplexing with the
qmi_wwan kernel driver.
2021-03-10 10:59:22 +01:00

123 lines
3.7 KiB
C

/* -*- Mode: C; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
* 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:
*
* Copyright (C) 2021 - Aleksander Morgado <aleksander@aleksander.es>
*/
#include <net/if.h>
#include <ModemManager.h>
#include <mm-errors-types.h>
#include "mm-port-net.h"
#include "mm-log-object.h"
#include "mm-netlink.h"
G_DEFINE_TYPE (MMPortNet, mm_port_net, MM_TYPE_PORT)
struct _MMPortNetPrivate {
guint ifindex;
};
static void
ensure_ifindex (MMPortNet *self)
{
if (!self->priv->ifindex) {
self->priv->ifindex = if_nametoindex (mm_port_get_device (MM_PORT (self)));
if (!self->priv->ifindex)
mm_obj_warn (self, "couldn't get interface index");
else
mm_obj_dbg (self, "interface index: %u", self->priv->ifindex);
}
}
/*****************************************************************************/
gboolean
mm_port_net_link_setup_finish (MMPortNet *self,
GAsyncResult *res,
GError **error)
{
return g_task_propagate_boolean (G_TASK (res), error);
}
static void
netlink_setlink_ready (MMNetlink *netlink,
GAsyncResult *res,
GTask *task)
{
GError *error = NULL;
if (!mm_netlink_setlink_finish (netlink, res, &error)) {
g_prefix_error (&error, "netlink operation failed: ");
g_task_return_error (task, error);
} else
g_task_return_boolean (task, TRUE);
g_object_unref (task);
}
void
mm_port_net_link_setup (MMPortNet *self,
gboolean up,
guint mtu,
GCancellable *cancellable,
GAsyncReadyCallback callback,
gpointer user_data)
{
GTask *task;
task = g_task_new (self, cancellable, callback, user_data);
ensure_ifindex (self);
if (!self->priv->ifindex) {
g_task_return_new_error (task, MM_CORE_ERROR, MM_CORE_ERROR_FAILED,
"no valid interface index found for %s",
mm_port_get_device (MM_PORT (self)));
g_object_unref (task);
return;
}
mm_netlink_setlink (mm_netlink_get (), /* singleton */
self->priv->ifindex,
up,
mtu,
cancellable,
(GAsyncReadyCallback) netlink_setlink_ready,
task);
}
/*****************************************************************************/
MMPortNet *
mm_port_net_new (const gchar *name)
{
return MM_PORT_NET (g_object_new (MM_TYPE_PORT_NET,
MM_PORT_DEVICE, name,
MM_PORT_SUBSYS, MM_PORT_SUBSYS_NET,
MM_PORT_TYPE, MM_PORT_TYPE_NET,
NULL));
}
static void
mm_port_net_init (MMPortNet *self)
{
self->priv = G_TYPE_INSTANCE_GET_PRIVATE (self, MM_TYPE_PORT_NET, MMPortNetPrivate);
}
static void
mm_port_net_class_init (MMPortNetClass *klass)
{
GObjectClass *object_class = G_OBJECT_CLASS (klass);
g_type_class_add_private (object_class, sizeof (MMPortNetPrivate));
}