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#ifndef _NET_GARP_H
#define _NET_GARP_H
#include <net/stp.h>
#define GARP_PROTOCOL_ID 0x1
#define GARP_END_MARK 0x0
struct garp_pdu_hdr {
__be16 protocol;
};
struct garp_msg_hdr {
u8 attrtype;
};
enum garp_attr_event {
GARP_LEAVE_ALL,
GARP_JOIN_EMPTY,
GARP_JOIN_IN,
GARP_LEAVE_EMPTY,
GARP_LEAVE_IN,
GARP_EMPTY,
};
struct garp_attr_hdr {
u8 len;
u8 event;
u8 data[];
};
struct garp_skb_cb {
u8 cur_type;
};
static inline struct garp_skb_cb *garp_cb(struct sk_buff *skb)
{
BUILD_BUG_ON(sizeof(struct garp_skb_cb) >
FIELD_SIZEOF(struct sk_buff, cb));
return (struct garp_skb_cb *)skb->cb;
}
enum garp_applicant_state {
GARP_APPLICANT_INVALID,
GARP_APPLICANT_VA,
GARP_APPLICANT_AA,
GARP_APPLICANT_QA,
GARP_APPLICANT_LA,
GARP_APPLICANT_VP,
GARP_APPLICANT_AP,
GARP_APPLICANT_QP,
GARP_APPLICANT_VO,
GARP_APPLICANT_AO,
GARP_APPLICANT_QO,
__GARP_APPLICANT_MAX
};
#define GARP_APPLICANT_MAX (__GARP_APPLICANT_MAX - 1)
enum garp_event {
GARP_EVENT_REQ_JOIN,
GARP_EVENT_REQ_LEAVE,
GARP_EVENT_R_JOIN_IN,
GARP_EVENT_R_JOIN_EMPTY,
GARP_EVENT_R_EMPTY,
GARP_EVENT_R_LEAVE_IN,
GARP_EVENT_R_LEAVE_EMPTY,
GARP_EVENT_TRANSMIT_PDU,
__GARP_EVENT_MAX
};
#define GARP_EVENT_MAX (__GARP_EVENT_MAX - 1)
enum garp_action {
GARP_ACTION_NONE,
GARP_ACTION_S_JOIN_IN,
GARP_ACTION_S_LEAVE_EMPTY,
};
struct garp_attr {
struct rb_node node;
enum garp_applicant_state state;
u8 type;
u8 dlen;
unsigned char data[];
};
enum garp_applications {
GARP_APPLICATION_GVRP,
__GARP_APPLICATION_MAX
};
#define GARP_APPLICATION_MAX (__GARP_APPLICATION_MAX - 1)
struct garp_application {
enum garp_applications type;
unsigned int maxattr;
struct stp_proto proto;
};
struct garp_applicant {
struct garp_application *app;
struct net_device *dev;
struct timer_list join_timer;
spinlock_t lock;
struct sk_buff_head queue;
struct sk_buff *pdu;
struct rb_root gid;
struct rcu_head rcu;
};
struct garp_port {
struct garp_applicant __rcu *applicants[GARP_APPLICATION_MAX + 1];
struct rcu_head rcu;
};
int garp_register_application(struct garp_application *app);
void garp_unregister_application(struct garp_application *app);
int garp_init_applicant(struct net_device *dev, struct garp_application *app);
void garp_uninit_applicant(struct net_device *dev,
struct garp_application *app);
int garp_request_join(const struct net_device *dev,
const struct garp_application *app, const void *data,
u8 len, u8 type);
void garp_request_leave(const struct net_device *dev,
const struct garp_application *app,
const void *data, u8 len, u8 type);
#endif /* _NET_GARP_H */