2 * netifd - network interface daemon
3 * Copyright (C) 2012 Felix Fietkau <nbd@openwrt.org>
4 * Copyright (C) 2013 Jo-Philipp Wich <jow@openwrt.org>
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License version 2
8 * as published by the Free Software Foundation
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
20 #include <net/ethernet.h>
23 #include <netinet/ether.h>
28 #include "interface.h"
38 static const struct blobmsg_policy macvlan_attrs[__MACVLAN_ATTR_MAX] = {
39 [MACVLAN_ATTR_IFNAME] = { "ifname", BLOBMSG_TYPE_STRING },
40 [MACVLAN_ATTR_MACADDR] = { "macaddr", BLOBMSG_TYPE_STRING },
41 [MACVLAN_ATTR_MODE] = { "mode", BLOBMSG_TYPE_STRING },
44 static const struct uci_blob_param_list macvlan_attr_list = {
45 .n_params = __MACVLAN_ATTR_MAX,
46 .params = macvlan_attrs,
49 struct macvlan_device {
51 struct device_user parent;
53 device_state_cb set_state;
55 struct blob_attr *config_data;
56 struct blob_attr *ifname;
57 struct macvlan_config config;
61 macvlan_base_cb(struct device_user *dev, enum device_event ev)
63 struct macvlan_device *mvdev = container_of(dev, struct macvlan_device, parent);
67 device_set_present(&mvdev->dev, true);
69 case DEV_EVENT_REMOVE:
70 device_set_present(&mvdev->dev, false);
72 case DEV_EVENT_LINK_UP:
73 device_set_link(&mvdev->dev, true);
75 case DEV_EVENT_LINK_DOWN:
76 device_set_link(&mvdev->dev, false);
84 macvlan_set_down(struct macvlan_device *mvdev)
86 mvdev->set_state(&mvdev->dev, false);
87 system_macvlan_del(&mvdev->dev);
88 device_release(&mvdev->parent);
94 macvlan_set_up(struct macvlan_device *mvdev)
98 ret = device_claim(&mvdev->parent);
102 ret = system_macvlan_add(&mvdev->dev, mvdev->parent.dev, &mvdev->config);
106 ret = mvdev->set_state(&mvdev->dev, true);
113 system_macvlan_del(&mvdev->dev);
115 device_release(&mvdev->parent);
120 macvlan_set_state(struct device *dev, bool up)
122 struct macvlan_device *mvdev;
124 D(SYSTEM, "macvlan_set_state(%s, %u)\n", dev->ifname, up);
126 mvdev = container_of(dev, struct macvlan_device, dev);
128 return macvlan_set_up(mvdev);
130 return macvlan_set_down(mvdev);
134 macvlan_free(struct device *dev)
136 struct macvlan_device *mvdev;
138 mvdev = container_of(dev, struct macvlan_device, dev);
139 device_remove_user(&mvdev->parent);
144 macvlan_dump_info(struct device *dev, struct blob_buf *b)
146 struct macvlan_device *mvdev;
148 mvdev = container_of(dev, struct macvlan_device, dev);
149 blobmsg_add_string(b, "parent", mvdev->parent.dev->ifname);
150 system_if_dump_info(dev, b);
154 macvlan_config_init(struct device *dev)
156 struct macvlan_device *mvdev;
157 struct device *basedev = NULL;
159 mvdev = container_of(dev, struct macvlan_device, dev);
161 basedev = device_get(blobmsg_data(mvdev->ifname), true);
163 device_add_user(&mvdev->parent, basedev);
167 macvlan_apply_settings(struct macvlan_device *mvdev, struct blob_attr **tb)
169 struct macvlan_config *cfg = &mvdev->config;
170 struct blob_attr *cur;
171 struct ether_addr *ea;
176 if ((cur = tb[MACVLAN_ATTR_MACADDR])) {
177 ea = ether_aton(blobmsg_data(cur));
179 memcpy(cfg->macaddr, ea, 6);
180 cfg->flags |= MACVLAN_OPT_MACADDR;
184 if ((cur = tb[MACVLAN_ATTR_MODE]))
185 cfg->mode = blobmsg_data(cur);
188 static enum dev_change_type
189 macvlan_reload(struct device *dev, struct blob_attr *attr)
191 struct blob_attr *tb_dev[__DEV_ATTR_MAX];
192 struct blob_attr *tb_mv[__MACVLAN_ATTR_MAX];
193 enum dev_change_type ret = DEV_CONFIG_APPLIED;
194 struct macvlan_device *mvdev;
196 mvdev = container_of(dev, struct macvlan_device, dev);
198 blobmsg_parse(device_attr_list.params, __DEV_ATTR_MAX, tb_dev,
199 blob_data(attr), blob_len(attr));
200 blobmsg_parse(macvlan_attrs, __MACVLAN_ATTR_MAX, tb_mv,
201 blob_data(attr), blob_len(attr));
203 device_init_settings(dev, tb_dev);
204 macvlan_apply_settings(mvdev, tb_mv);
205 mvdev->ifname = tb_mv[MACVLAN_ATTR_IFNAME];
207 if (mvdev->config_data) {
208 struct blob_attr *otb_dev[__DEV_ATTR_MAX];
209 struct blob_attr *otb_mv[__MACVLAN_ATTR_MAX];
211 blobmsg_parse(device_attr_list.params, __DEV_ATTR_MAX, otb_dev,
212 blob_data(mvdev->config_data), blob_len(mvdev->config_data));
214 if (uci_blob_diff(tb_dev, otb_dev, &device_attr_list, NULL))
215 ret = DEV_CONFIG_RESTART;
217 blobmsg_parse(macvlan_attrs, __MACVLAN_ATTR_MAX, otb_mv,
218 blob_data(mvdev->config_data), blob_len(mvdev->config_data));
220 if (uci_blob_diff(tb_mv, otb_mv, &macvlan_attr_list, NULL))
221 ret = DEV_CONFIG_RESTART;
223 macvlan_config_init(dev);
226 mvdev->config_data = attr;
230 static struct device *
231 macvlan_create(const char *name, struct blob_attr *attr)
233 struct macvlan_device *mvdev;
234 struct device *dev = NULL;
236 mvdev = calloc(1, sizeof(*mvdev));
241 device_init(dev, &macvlan_device_type, name);
242 dev->config_pending = true;
244 mvdev->set_state = dev->set_state;
245 dev->set_state = macvlan_set_state;
247 dev->hotplug_ops = NULL;
248 mvdev->parent.cb = macvlan_base_cb;
250 macvlan_reload(dev, attr);
255 const struct device_type macvlan_device_type = {
257 .config_params = &macvlan_attr_list,
259 .create = macvlan_create,
260 .config_init = macvlan_config_init,
261 .reload = macvlan_reload,
262 .free = macvlan_free,
263 .dump_info = macvlan_dump_info,