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#ifndef __LL_H
#define __LL_H
#include <libubox/avl.h>
#include <netinet/in.h>
struct device;
struct device_hotplug_ops;
typedef int (*device_state_cb)(struct device *, bool up);
struct device_type {
const char *name;
void (*dump_status)(struct device *, struct blob_buf *buf);
int (*check_state)(struct device *);
void (*free)(struct device *);
};
enum {
DEV_OPT_MTU = (1 << 0),
DEV_OPT_MACADDR = (1 << 1),
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),
};
union if_addr {
struct in_addr in;
struct in6_addr in6;
};
struct device_addr {
struct list_head list;
void *ctx;
enum device_addr_flags flags;
unsigned int mask;
union if_addr addr;
};
struct device_route {
struct list_head list;
void *ctx;
enum device_addr_flags flags;
unsigned int mask;
union if_addr addr;
union if_addr nexthop;
};
/*
* link layer device. typically represents a linux network device.
* can be used to support VLANs as well
*/
struct device {
const struct device_type *type;
struct avl_node avl;
struct list_head users;
char ifname[IFNAMSIZ + 1];
int ifindex;
bool present;
int active;
/* 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];
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_hotplug_ops {
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 config_param_list device_attr_list;
struct device *device_create(struct blob_attr *attr, struct uci_section *s);
void init_virtual_device(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);
void device_add_user(struct device_user *dep, struct device *iface);
void device_remove_user(struct device_user *dep);
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_free_all(void);
struct device *get_vlan_device_chain(const char *ifname, bool create);
struct device *bridge_create(const char *name, struct uci_section *s);
#endif
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