[deliverable/linux.git] / include / net / garp.h

#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 */
Commit	Line	Data
eca9ebac PM	1	#ifndef _NET_GARP_H
	2	#define _NET_GARP_H
	3
	4	#include <net/stp.h>
	5
	6	#define GARP_PROTOCOL_ID 0x1
	7	#define GARP_END_MARK 0x0
	8
	9	struct garp_pdu_hdr {
	10	__be16 protocol;
	11	};
	12
	13	struct garp_msg_hdr {
	14	u8 attrtype;
	15	};
	16
	17	enum garp_attr_event {
	18	GARP_LEAVE_ALL,
	19	GARP_JOIN_EMPTY,
	20	GARP_JOIN_IN,
	21	GARP_LEAVE_EMPTY,
	22	GARP_LEAVE_IN,
	23	GARP_EMPTY,
	24	};
	25
	26	struct garp_attr_hdr {
	27	u8 len;
	28	u8 event;
	29	u8 data[];
	30	};
	31
	32	struct garp_skb_cb {
	33	u8 cur_type;
	34	};
	35
	36	static inline struct garp_skb_cb garp_cb(struct sk_buff skb)
	37	{
	38	BUILD_BUG_ON(sizeof(struct garp_skb_cb) >
	39	FIELD_SIZEOF(struct sk_buff, cb));
	40	return (struct garp_skb_cb *)skb->cb;
	41	}
	42
	43	enum garp_applicant_state {
	44	GARP_APPLICANT_INVALID,
	45	GARP_APPLICANT_VA,
	46	GARP_APPLICANT_AA,
	47	GARP_APPLICANT_QA,
	48	GARP_APPLICANT_LA,
	49	GARP_APPLICANT_VP,
	50	GARP_APPLICANT_AP,
	51	GARP_APPLICANT_QP,
	52	GARP_APPLICANT_VO,
	53	GARP_APPLICANT_AO,
	54	GARP_APPLICANT_QO,
	55	__GARP_APPLICANT_MAX
	56	};
	57	#define GARP_APPLICANT_MAX (__GARP_APPLICANT_MAX - 1)
	58
	59	enum garp_event {
	60	GARP_EVENT_REQ_JOIN,
	61	GARP_EVENT_REQ_LEAVE,
	62	GARP_EVENT_R_JOIN_IN,
	63	GARP_EVENT_R_JOIN_EMPTY,
	64	GARP_EVENT_R_EMPTY,
65	GARP_EVENT_R_LEAVE_IN,
66	GARP_EVENT_R_LEAVE_EMPTY,
67	GARP_EVENT_TRANSMIT_PDU,
68	__GARP_EVENT_MAX
69	};
70	#define GARP_EVENT_MAX (__GARP_EVENT_MAX - 1)
71
72	enum garp_action {
73	GARP_ACTION_NONE,
74	GARP_ACTION_S_JOIN_IN,
75	GARP_ACTION_S_LEAVE_EMPTY,
76	};
77
78	struct garp_attr {
79	struct rb_node node;
80	enum garp_applicant_state state;
81	u8 type;
82	u8 dlen;
83	unsigned char data[];
84	};
85
86	enum garp_applications {
70c03b49	87	GARP_APPLICATION_GVRP,
eca9ebac PM	88	__GARP_APPLICATION_MAX
	89	};
	90	#define GARP_APPLICATION_MAX (__GARP_APPLICATION_MAX - 1)
	91
	92	struct garp_application {
	93	enum garp_applications type;
	94	unsigned int maxattr;
	95	struct stp_proto proto;
	96	};
	97
	98	struct garp_applicant {
	99	struct garp_application *app;
	100	struct net_device *dev;
	101	struct timer_list join_timer;
	102
	103	spinlock_t lock;
	104	struct sk_buff_head queue;
	105	struct sk_buff *pdu;
	106	struct rb_root gid;
f607a158	107	struct rcu_head rcu;
eca9ebac PM	108	};
	109
	110	struct garp_port {
3cc77ec7	111	struct garp_applicant __rcu *applicants[GARP_APPLICATION_MAX + 1];
da37e368	112	struct rcu_head rcu;
eca9ebac PM	113	};
eca9ebac PM	114
2008f21c JP	115	int garp_register_application(struct garp_application *app);
	116	void garp_unregister_application(struct garp_application *app);
	117
	118	int garp_init_applicant(struct net_device dev, struct garp_application app);
	119	void garp_uninit_applicant(struct net_device *dev,
	120	struct garp_application *app);
	121
	122	int garp_request_join(const struct net_device *dev,
	123	const struct garp_application app, const void data,
	124	u8 len, u8 type);
	125	void garp_request_leave(const struct net_device *dev,
	126	const struct garp_application *app,
	127	const void *data, u8 len, u8 type);
eca9ebac PM	128
eca9ebac PM	129	#endif /* _NET_GARP_H */