1*4882a593Smuzhiyun /* SPDX-License-Identifier: GPL-2.0 */
2*4882a593Smuzhiyun #ifndef _NET_MRP_H
3*4882a593Smuzhiyun #define _NET_MRP_H
4*4882a593Smuzhiyun
5*4882a593Smuzhiyun #define MRP_END_MARK 0x0
6*4882a593Smuzhiyun
7*4882a593Smuzhiyun struct mrp_pdu_hdr {
8*4882a593Smuzhiyun u8 version;
9*4882a593Smuzhiyun };
10*4882a593Smuzhiyun
11*4882a593Smuzhiyun struct mrp_msg_hdr {
12*4882a593Smuzhiyun u8 attrtype;
13*4882a593Smuzhiyun u8 attrlen;
14*4882a593Smuzhiyun };
15*4882a593Smuzhiyun
16*4882a593Smuzhiyun struct mrp_vecattr_hdr {
17*4882a593Smuzhiyun __be16 lenflags;
18*4882a593Smuzhiyun unsigned char firstattrvalue[];
19*4882a593Smuzhiyun #define MRP_VECATTR_HDR_LEN_MASK cpu_to_be16(0x1FFF)
20*4882a593Smuzhiyun #define MRP_VECATTR_HDR_FLAG_LA cpu_to_be16(0x2000)
21*4882a593Smuzhiyun };
22*4882a593Smuzhiyun
23*4882a593Smuzhiyun enum mrp_vecattr_event {
24*4882a593Smuzhiyun MRP_VECATTR_EVENT_NEW,
25*4882a593Smuzhiyun MRP_VECATTR_EVENT_JOIN_IN,
26*4882a593Smuzhiyun MRP_VECATTR_EVENT_IN,
27*4882a593Smuzhiyun MRP_VECATTR_EVENT_JOIN_MT,
28*4882a593Smuzhiyun MRP_VECATTR_EVENT_MT,
29*4882a593Smuzhiyun MRP_VECATTR_EVENT_LV,
30*4882a593Smuzhiyun __MRP_VECATTR_EVENT_MAX
31*4882a593Smuzhiyun };
32*4882a593Smuzhiyun
33*4882a593Smuzhiyun struct mrp_skb_cb {
34*4882a593Smuzhiyun struct mrp_msg_hdr *mh;
35*4882a593Smuzhiyun struct mrp_vecattr_hdr *vah;
36*4882a593Smuzhiyun unsigned char attrvalue[];
37*4882a593Smuzhiyun };
38*4882a593Smuzhiyun
mrp_cb(struct sk_buff * skb)39*4882a593Smuzhiyun static inline struct mrp_skb_cb *mrp_cb(struct sk_buff *skb)
40*4882a593Smuzhiyun {
41*4882a593Smuzhiyun BUILD_BUG_ON(sizeof(struct mrp_skb_cb) >
42*4882a593Smuzhiyun sizeof_field(struct sk_buff, cb));
43*4882a593Smuzhiyun return (struct mrp_skb_cb *)skb->cb;
44*4882a593Smuzhiyun }
45*4882a593Smuzhiyun
46*4882a593Smuzhiyun enum mrp_applicant_state {
47*4882a593Smuzhiyun MRP_APPLICANT_INVALID,
48*4882a593Smuzhiyun MRP_APPLICANT_VO,
49*4882a593Smuzhiyun MRP_APPLICANT_VP,
50*4882a593Smuzhiyun MRP_APPLICANT_VN,
51*4882a593Smuzhiyun MRP_APPLICANT_AN,
52*4882a593Smuzhiyun MRP_APPLICANT_AA,
53*4882a593Smuzhiyun MRP_APPLICANT_QA,
54*4882a593Smuzhiyun MRP_APPLICANT_LA,
55*4882a593Smuzhiyun MRP_APPLICANT_AO,
56*4882a593Smuzhiyun MRP_APPLICANT_QO,
57*4882a593Smuzhiyun MRP_APPLICANT_AP,
58*4882a593Smuzhiyun MRP_APPLICANT_QP,
59*4882a593Smuzhiyun __MRP_APPLICANT_MAX
60*4882a593Smuzhiyun };
61*4882a593Smuzhiyun #define MRP_APPLICANT_MAX (__MRP_APPLICANT_MAX - 1)
62*4882a593Smuzhiyun
63*4882a593Smuzhiyun enum mrp_event {
64*4882a593Smuzhiyun MRP_EVENT_NEW,
65*4882a593Smuzhiyun MRP_EVENT_JOIN,
66*4882a593Smuzhiyun MRP_EVENT_LV,
67*4882a593Smuzhiyun MRP_EVENT_TX,
68*4882a593Smuzhiyun MRP_EVENT_R_NEW,
69*4882a593Smuzhiyun MRP_EVENT_R_JOIN_IN,
70*4882a593Smuzhiyun MRP_EVENT_R_IN,
71*4882a593Smuzhiyun MRP_EVENT_R_JOIN_MT,
72*4882a593Smuzhiyun MRP_EVENT_R_MT,
73*4882a593Smuzhiyun MRP_EVENT_R_LV,
74*4882a593Smuzhiyun MRP_EVENT_R_LA,
75*4882a593Smuzhiyun MRP_EVENT_REDECLARE,
76*4882a593Smuzhiyun MRP_EVENT_PERIODIC,
77*4882a593Smuzhiyun __MRP_EVENT_MAX
78*4882a593Smuzhiyun };
79*4882a593Smuzhiyun #define MRP_EVENT_MAX (__MRP_EVENT_MAX - 1)
80*4882a593Smuzhiyun
81*4882a593Smuzhiyun enum mrp_tx_action {
82*4882a593Smuzhiyun MRP_TX_ACTION_NONE,
83*4882a593Smuzhiyun MRP_TX_ACTION_S_NEW,
84*4882a593Smuzhiyun MRP_TX_ACTION_S_JOIN_IN,
85*4882a593Smuzhiyun MRP_TX_ACTION_S_JOIN_IN_OPTIONAL,
86*4882a593Smuzhiyun MRP_TX_ACTION_S_IN_OPTIONAL,
87*4882a593Smuzhiyun MRP_TX_ACTION_S_LV,
88*4882a593Smuzhiyun };
89*4882a593Smuzhiyun
90*4882a593Smuzhiyun struct mrp_attr {
91*4882a593Smuzhiyun struct rb_node node;
92*4882a593Smuzhiyun enum mrp_applicant_state state;
93*4882a593Smuzhiyun u8 type;
94*4882a593Smuzhiyun u8 len;
95*4882a593Smuzhiyun unsigned char value[];
96*4882a593Smuzhiyun };
97*4882a593Smuzhiyun
98*4882a593Smuzhiyun enum mrp_applications {
99*4882a593Smuzhiyun MRP_APPLICATION_MVRP,
100*4882a593Smuzhiyun __MRP_APPLICATION_MAX
101*4882a593Smuzhiyun };
102*4882a593Smuzhiyun #define MRP_APPLICATION_MAX (__MRP_APPLICATION_MAX - 1)
103*4882a593Smuzhiyun
104*4882a593Smuzhiyun struct mrp_application {
105*4882a593Smuzhiyun enum mrp_applications type;
106*4882a593Smuzhiyun unsigned int maxattr;
107*4882a593Smuzhiyun struct packet_type pkttype;
108*4882a593Smuzhiyun unsigned char group_address[ETH_ALEN];
109*4882a593Smuzhiyun u8 version;
110*4882a593Smuzhiyun };
111*4882a593Smuzhiyun
112*4882a593Smuzhiyun struct mrp_applicant {
113*4882a593Smuzhiyun struct mrp_application *app;
114*4882a593Smuzhiyun struct net_device *dev;
115*4882a593Smuzhiyun struct timer_list join_timer;
116*4882a593Smuzhiyun struct timer_list periodic_timer;
117*4882a593Smuzhiyun
118*4882a593Smuzhiyun spinlock_t lock;
119*4882a593Smuzhiyun struct sk_buff_head queue;
120*4882a593Smuzhiyun struct sk_buff *pdu;
121*4882a593Smuzhiyun struct rb_root mad;
122*4882a593Smuzhiyun struct rcu_head rcu;
123*4882a593Smuzhiyun };
124*4882a593Smuzhiyun
125*4882a593Smuzhiyun struct mrp_port {
126*4882a593Smuzhiyun struct mrp_applicant __rcu *applicants[MRP_APPLICATION_MAX + 1];
127*4882a593Smuzhiyun struct rcu_head rcu;
128*4882a593Smuzhiyun };
129*4882a593Smuzhiyun
130*4882a593Smuzhiyun int mrp_register_application(struct mrp_application *app);
131*4882a593Smuzhiyun void mrp_unregister_application(struct mrp_application *app);
132*4882a593Smuzhiyun
133*4882a593Smuzhiyun int mrp_init_applicant(struct net_device *dev, struct mrp_application *app);
134*4882a593Smuzhiyun void mrp_uninit_applicant(struct net_device *dev, struct mrp_application *app);
135*4882a593Smuzhiyun
136*4882a593Smuzhiyun int mrp_request_join(const struct net_device *dev,
137*4882a593Smuzhiyun const struct mrp_application *app,
138*4882a593Smuzhiyun const void *value, u8 len, u8 type);
139*4882a593Smuzhiyun void mrp_request_leave(const struct net_device *dev,
140*4882a593Smuzhiyun const struct mrp_application *app,
141*4882a593Smuzhiyun const void *value, u8 len, u8 type);
142*4882a593Smuzhiyun
143*4882a593Smuzhiyun #endif /* _NET_MRP_H */
144