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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 */
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