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| /* SPDX-License-Identifier: GPL-2.0 */
| #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) >
| sizeof_field(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 */
|
|
