2 * netifd - network interface daemon
3 * Copyright (C) 2012 Felix Fietkau <nbd@openwrt.org>
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License version 2
7 * as published by the Free Software Foundation
9 * This program is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public License for more details.
14 #ifndef __NETIFD_DEVICE_H
15 #define __NETIFD_DEVICE_H
17 #include <libubox/avl.h>
18 #include <libubox/safe_list.h>
19 #include <netinet/in.h>
23 struct device_hotplug_ops;
25 typedef int (*device_state_cb)(struct device *, bool up);
39 enum dev_change_type {
47 struct list_head list;
50 const struct uci_blob_param_list *config_params;
52 struct device *(*create)(const char *name, struct blob_attr *attr);
53 void (*config_init)(struct device *);
54 enum dev_change_type (*reload)(struct device *, struct blob_attr *);
55 void (*dump_info)(struct device *, struct blob_buf *buf);
56 void (*dump_stats)(struct device *, struct blob_buf *buf);
57 int (*check_state)(struct device *);
58 void (*free)(struct device *);
62 DEV_OPT_MTU = (1 << 0),
63 DEV_OPT_MACADDR = (1 << 1),
64 DEV_OPT_TXQUEUELEN = (1 << 2),
65 DEV_OPT_IPV6 = (1 << 3),
66 DEV_OPT_PROMISC = (1 << 4),
69 /* events broadcasted to all users of a device */
74 DEV_EVENT_UPDATE_IFNAME,
75 DEV_EVENT_UPDATE_IFINDEX,
85 /* Topology changed (i.e. bridge member added) */
86 DEV_EVENT_TOPO_CHANGE,
92 * device dependency with callbacks
95 struct safe_list list;
101 uint8_t ev_idx[__DEV_EVENT_MAX];
104 void (*cb)(struct device_user *, enum device_event);
107 struct device_settings {
110 unsigned int txqueuelen;
117 * link layer device. typically represents a linux network device.
118 * can be used to support VLANs as well
121 const struct device_type *type;
124 struct safe_list users;
125 struct safe_list aliases;
127 char ifname[IFNAMSIZ + 1];
130 struct blob_attr *config;
146 /* set interface up or down */
147 device_state_cb set_state;
149 const struct device_hotplug_ops *hotplug_ops;
151 struct device_user parent;
153 struct device_settings orig_settings;
154 struct device_settings settings;
157 struct device_hotplug_ops {
158 int (*prepare)(struct device *dev);
159 int (*add)(struct device *main, struct device *member);
160 int (*del)(struct device *main, struct device *member);
163 extern const struct uci_blob_param_list device_attr_list;
164 extern const struct device_type simple_device_type;
165 extern const struct device_type bridge_device_type;
166 extern const struct device_type tunnel_device_type;
167 extern const struct device_type macvlan_device_type;
168 extern const struct device_type vlandev_device_type;
170 void device_lock(void);
171 void device_unlock(void);
173 struct device *device_create(const char *name, const struct device_type *type,
174 struct blob_attr *config);
175 void device_init_settings(struct device *dev, struct blob_attr **tb);
176 void device_init_pending(void);
179 device_set_config(struct device *dev, const struct device_type *type,
180 struct blob_attr *attr);
182 void device_reset_config(void);
183 void device_reset_old(void);
185 void device_init_virtual(struct device *dev, const struct device_type *type, const char *name);
186 int device_init(struct device *iface, const struct device_type *type, const char *ifname);
187 void device_cleanup(struct device *iface);
188 struct device *device_get(const char *name, int create);
189 void device_add_user(struct device_user *dep, struct device *iface);
190 void device_remove_user(struct device_user *dep);
191 void device_broadcast_event(struct device *dev, enum device_event ev);
193 void device_set_present(struct device *dev, bool state);
194 void device_set_link(struct device *dev, bool state);
195 void device_set_ifindex(struct device *dev, int ifindex);
196 void device_refresh_present(struct device *dev);
197 int device_claim(struct device_user *dep);
198 void device_release(struct device_user *dep);
199 int device_check_state(struct device *dev);
200 void device_dump_status(struct blob_buf *b, struct device *dev);
202 void device_free(struct device *dev);
203 void device_free_unused(struct device *dev);
205 struct device *get_vlan_device_chain(const char *ifname, bool create);
206 void alias_notify_device(const char *name, struct device *dev);
207 struct device *device_alias_get(const char *name);
210 device_set_deferred(struct device *dev, bool value)
212 dev->deferred = value;
213 device_refresh_present(dev);
217 device_set_disabled(struct device *dev, bool value)
219 dev->disabled = value;
220 device_refresh_present(dev);