1#ifndef _NET_MRP_H
2#define _NET_MRP_H
3
4#define MRP_END_MARK		0x0
5
6struct mrp_pdu_hdr {
7	u8	version;
8};
9
10struct mrp_msg_hdr {
11	u8	attrtype;
12	u8	attrlen;
13};
14
15struct mrp_vecattr_hdr {
16	__be16	lenflags;
17	unsigned char	firstattrvalue[];
18#define MRP_VECATTR_HDR_LEN_MASK cpu_to_be16(0x1FFF)
19#define MRP_VECATTR_HDR_FLAG_LA cpu_to_be16(0x2000)
20};
21
22enum mrp_vecattr_event {
23	MRP_VECATTR_EVENT_NEW,
24	MRP_VECATTR_EVENT_JOIN_IN,
25	MRP_VECATTR_EVENT_IN,
26	MRP_VECATTR_EVENT_JOIN_MT,
27	MRP_VECATTR_EVENT_MT,
28	MRP_VECATTR_EVENT_LV,
29	__MRP_VECATTR_EVENT_MAX
30};
31
32struct mrp_skb_cb {
33	struct mrp_msg_hdr	*mh;
34	struct mrp_vecattr_hdr	*vah;
35	unsigned char		attrvalue[];
36};
37
38static inline struct mrp_skb_cb *mrp_cb(struct sk_buff *skb)
39{
40	BUILD_BUG_ON(sizeof(struct mrp_skb_cb) >
41		     FIELD_SIZEOF(struct sk_buff, cb));
42	return (struct mrp_skb_cb *)skb->cb;
43}
44
45enum mrp_applicant_state {
46	MRP_APPLICANT_INVALID,
47	MRP_APPLICANT_VO,
48	MRP_APPLICANT_VP,
49	MRP_APPLICANT_VN,
50	MRP_APPLICANT_AN,
51	MRP_APPLICANT_AA,
52	MRP_APPLICANT_QA,
53	MRP_APPLICANT_LA,
54	MRP_APPLICANT_AO,
55	MRP_APPLICANT_QO,
56	MRP_APPLICANT_AP,
57	MRP_APPLICANT_QP,
58	__MRP_APPLICANT_MAX
59};
60#define MRP_APPLICANT_MAX	(__MRP_APPLICANT_MAX - 1)
61
62enum mrp_event {
63	MRP_EVENT_NEW,
64	MRP_EVENT_JOIN,
65	MRP_EVENT_LV,
66	MRP_EVENT_TX,
67	MRP_EVENT_R_NEW,
68	MRP_EVENT_R_JOIN_IN,
69	MRP_EVENT_R_IN,
70	MRP_EVENT_R_JOIN_MT,
71	MRP_EVENT_R_MT,
72	MRP_EVENT_R_LV,
73	MRP_EVENT_R_LA,
74	MRP_EVENT_REDECLARE,
75	MRP_EVENT_PERIODIC,
76	__MRP_EVENT_MAX
77};
78#define MRP_EVENT_MAX		(__MRP_EVENT_MAX - 1)
79
80enum mrp_tx_action {
81	MRP_TX_ACTION_NONE,
82	MRP_TX_ACTION_S_NEW,
83	MRP_TX_ACTION_S_JOIN_IN,
84	MRP_TX_ACTION_S_JOIN_IN_OPTIONAL,
85	MRP_TX_ACTION_S_IN_OPTIONAL,
86	MRP_TX_ACTION_S_LV,
87};
88
89struct mrp_attr {
90	struct rb_node			node;
91	enum mrp_applicant_state	state;
92	u8				type;
93	u8				len;
94	unsigned char			value[];
95};
96
97enum mrp_applications {
98	MRP_APPLICATION_MVRP,
99	__MRP_APPLICATION_MAX
100};
101#define MRP_APPLICATION_MAX	(__MRP_APPLICATION_MAX - 1)
102
103struct mrp_application {
104	enum mrp_applications	type;
105	unsigned int		maxattr;
106	struct packet_type	pkttype;
107	unsigned char		group_address[ETH_ALEN];
108	u8			version;
109};
110
111struct mrp_applicant {
112	struct mrp_application	*app;
113	struct net_device	*dev;
114	struct timer_list	join_timer;
115	struct timer_list	periodic_timer;
116
117	spinlock_t		lock;
118	struct sk_buff_head	queue;
119	struct sk_buff		*pdu;
120	struct rb_root		mad;
121	struct rcu_head		rcu;
122};
123
124struct mrp_port {
125	struct mrp_applicant __rcu	*applicants[MRP_APPLICATION_MAX + 1];
126	struct rcu_head			rcu;
127};
128
129int mrp_register_application(struct mrp_application *app);
130void mrp_unregister_application(struct mrp_application *app);
131
132int mrp_init_applicant(struct net_device *dev, struct mrp_application *app);
133void mrp_uninit_applicant(struct net_device *dev, struct mrp_application *app);
134
135int mrp_request_join(const struct net_device *dev,
136		     const struct mrp_application *app,
137		     const void *value, u8 len, u8 type);
138void mrp_request_leave(const struct net_device *dev,
139		       const struct mrp_application *app,
140		       const void *value, u8 len, u8 type);
141
142#endif /* _NET_MRP_H */
143