+/*
+ * netifd - network interface daemon
+ * Copyright (C) 2012 Felix Fietkau <nbd@openwrt.org>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2
+ * as published by the Free Software Foundation
+ *
+ * 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.
+ */
#ifndef __LL_H
#define __LL_H
#include <libubox/avl.h>
+#include <libubox/safe_list.h>
#include <netinet/in.h>
struct device;
+struct device_user;
struct device_hotplug_ops;
typedef int (*device_state_cb)(struct device *, bool up);
+enum {
+ DEV_ATTR_TYPE,
+ DEV_ATTR_IFNAME,
+ DEV_ATTR_MTU,
+ DEV_ATTR_MACADDR,
+ DEV_ATTR_TXQUEUELEN,
+ DEV_ATTR_ENABLED,
+ __DEV_ATTR_MAX,
+};
+
+enum dev_change_type {
+ DEV_CONFIG_NO_CHANGE,
+ DEV_CONFIG_APPLIED,
+ DEV_CONFIG_RESTART,
+ DEV_CONFIG_RECREATE,
+};
+
struct device_type {
+ struct list_head list;
const char *name;
- void (*dump_status)(struct device *, struct blob_buf *buf);
+ const struct uci_blob_param_list *config_params;
+
+ struct device *(*create)(const char *name, struct blob_attr *attr);
+ void (*config_init)(struct device *);
+ enum dev_change_type (*reload)(struct device *, struct blob_attr *);
+ void (*dump_info)(struct device *, struct blob_buf *buf);
+ void (*dump_stats)(struct device *, struct blob_buf *buf);
int (*check_state)(struct device *);
void (*free)(struct device *);
};
DEV_OPT_TXQUEUELEN = (1 << 2)
};
-enum device_addr_flags {
- /* address family for routes and addresses */
- DEVADDR_INET4 = (0 << 0),
- DEVADDR_INET6 = (1 << 0),
- DEVADDR_FAMILY = DEVADDR_INET4 | DEVADDR_INET6,
-
- /* device route (no gateway) */
- DEVADDR_DEVICE = (1 << 1),
-};
+/* events broadcasted to all users of a device */
+enum device_event {
+ DEV_EVENT_ADD,
+ DEV_EVENT_REMOVE,
-union if_addr {
- struct in_addr in;
- struct in6_addr in6;
-};
+ DEV_EVENT_UPDATE_IFNAME,
-struct device_addr {
- struct list_head list;
- void *ctx;
+ DEV_EVENT_SETUP,
+ DEV_EVENT_TEARDOWN,
+ DEV_EVENT_UP,
+ DEV_EVENT_DOWN,
- enum device_addr_flags flags;
+ DEV_EVENT_LINK_UP,
+ DEV_EVENT_LINK_DOWN,
- unsigned int mask;
- union if_addr addr;
+ __DEV_EVENT_MAX
};
-struct device_route {
- struct list_head list;
- void *ctx;
+/*
+ * device dependency with callbacks
+ */
+struct device_user {
+ struct safe_list list;
+
+ bool claimed;
+ bool hotplug;
+ bool alias;
- enum device_addr_flags flags;
+ uint8_t ev_idx[__DEV_EVENT_MAX];
+
+ struct device *dev;
+ void (*cb)(struct device_user *, enum device_event);
+};
- unsigned int mask;
- union if_addr addr;
- union if_addr nexthop;
+struct device_settings {
+ unsigned int flags;
+ unsigned int mtu;
+ unsigned int txqueuelen;
+ uint8_t macaddr[6];
};
-/*
+/*
* link layer device. typically represents a linux network device.
* can be used to support VLANs as well
*/
const struct device_type *type;
struct avl_node avl;
- struct list_head users;
+ struct safe_list users;
+ struct safe_list aliases;
char ifname[IFNAMSIZ + 1];
int ifindex;
+ struct blob_attr *config;
+ bool config_pending;
+ bool sys_present;
bool present;
int active;
+ bool external;
+ bool disabled;
+ bool deferred;
+ bool hidden;
+
+ bool current_config;
+ bool default_config;
+
/* set interface up or down */
device_state_cb set_state;
const struct device_hotplug_ops *hotplug_ops;
- /* settings */
- unsigned int flags;
-
- unsigned int mtu;
- unsigned int txqueuelen;
- uint8_t macaddr[6];
+ struct device_user parent;
- uint32_t config_hash;
-};
-
-/* events broadcasted to all users of a device */
-enum device_event {
- DEV_EVENT_ADD,
- DEV_EVENT_REMOVE,
-
- DEV_EVENT_SETUP,
- DEV_EVENT_TEARDOWN,
- DEV_EVENT_UP,
- DEV_EVENT_DOWN,
-
- DEV_EVENT_LINK_UP,
- DEV_EVENT_LINK_DOWN,
-};
-
-/*
- * device dependency with callbacks
- */
-struct device_user {
- struct list_head list;
-
- struct device *dev;
- void (*cb)(struct device_user *, enum device_event);
+ struct device_settings orig_settings;
+ struct device_settings settings;
};
struct device_hotplug_ops {
+ int (*prepare)(struct device *dev);
int (*add)(struct device *main, struct device *member);
int (*del)(struct device *main, struct device *member);
};
-static inline void
-device_free(struct device *dev)
-{
- dev->type->free(dev);
-}
+extern const struct uci_blob_param_list device_attr_list;
+extern const struct device_type simple_device_type;
+extern const struct device_type bridge_device_type;
+extern const struct device_type tunnel_device_type;
+extern const struct device_type macvlan_device_type;
-extern const struct config_param_list device_attr_list;
+void device_lock(void);
+void device_unlock(void);
-struct device *device_create(struct blob_attr *attr, struct uci_section *s);
+struct device *device_create(const char *name, const struct device_type *type,
+ struct blob_attr *config);
+void device_init_settings(struct device *dev, struct blob_attr **tb);
+void device_init_pending(void);
+
+enum dev_change_type
+device_set_config(struct device *dev, const struct device_type *type,
+ struct blob_attr *attr);
+
+void device_reset_config(void);
+void device_reset_old(void);
void device_init_virtual(struct device *dev, const struct device_type *type, const char *name);
int device_init(struct device *iface, const struct device_type *type, const char *ifname);
void device_cleanup(struct device *iface);
-struct device *device_get(const char *name, bool create);
+struct device *device_get(const char *name, int create);
void device_add_user(struct device_user *dep, struct device *iface);
void device_remove_user(struct device_user *dep);
+void device_broadcast_event(struct device *dev, enum device_event ev);
void device_set_present(struct device *dev, bool state);
-int claim_device(struct device *dev);
-void release_device(struct device *dev);
-int check_device_state(struct device *dev);
+void device_refresh_present(struct device *dev);
+int device_claim(struct device_user *dep);
+void device_release(struct device_user *dep);
+int device_check_state(struct device *dev);
+void device_dump_status(struct blob_buf *b, struct device *dev);
-void device_free_all(void);
+void device_free(struct device *dev);
+void device_free_unused(struct device *dev);
struct device *get_vlan_device_chain(const char *ifname, bool create);
-struct device *bridge_create(const char *name, struct uci_section *s);
+void alias_notify_device(const char *name, struct device *dev);
+struct device *device_alias_get(const char *name);
+
+static inline void
+device_set_deferred(struct device *dev, bool value)
+{
+ dev->deferred = value;
+ device_refresh_present(dev);
+}
+
+static inline void
+device_set_disabled(struct device *dev, bool value)
+{
+ dev->disabled = value;
+ device_refresh_present(dev);
+}
#endif
projects / project / netifd.git / blobdiff