1 /* SPDX-License-Identifier: GPL-2.0 */ 1 /* SPDX-License-Identifier: GPL-2.0 */
2 #ifndef _NET_MRP_H 2 #ifndef _NET_MRP_H
3 #define _NET_MRP_H 3 #define _NET_MRP_H
4 4
5 #include <linux/netdevice.h> <<
6 #include <linux/skbuff.h> <<
7 #include <linux/types.h> <<
8 <<
9 #define MRP_END_MARK 0x0 5 #define MRP_END_MARK 0x0
10 6
11 struct mrp_pdu_hdr { 7 struct mrp_pdu_hdr {
12 u8 version; 8 u8 version;
13 }; 9 };
14 10
15 struct mrp_msg_hdr { 11 struct mrp_msg_hdr {
16 u8 attrtype; 12 u8 attrtype;
17 u8 attrlen; 13 u8 attrlen;
18 }; 14 };
19 15
20 struct mrp_vecattr_hdr { 16 struct mrp_vecattr_hdr {
21 __be16 lenflags; 17 __be16 lenflags;
22 unsigned char firstattrvalue[]; 18 unsigned char firstattrvalue[];
23 #define MRP_VECATTR_HDR_LEN_MASK cpu_to_be16(0 19 #define MRP_VECATTR_HDR_LEN_MASK cpu_to_be16(0x1FFF)
24 #define MRP_VECATTR_HDR_FLAG_LA cpu_to_be16(0x 20 #define MRP_VECATTR_HDR_FLAG_LA cpu_to_be16(0x2000)
25 }; 21 };
26 22
27 enum mrp_vecattr_event { 23 enum mrp_vecattr_event {
28 MRP_VECATTR_EVENT_NEW, 24 MRP_VECATTR_EVENT_NEW,
29 MRP_VECATTR_EVENT_JOIN_IN, 25 MRP_VECATTR_EVENT_JOIN_IN,
30 MRP_VECATTR_EVENT_IN, 26 MRP_VECATTR_EVENT_IN,
31 MRP_VECATTR_EVENT_JOIN_MT, 27 MRP_VECATTR_EVENT_JOIN_MT,
32 MRP_VECATTR_EVENT_MT, 28 MRP_VECATTR_EVENT_MT,
33 MRP_VECATTR_EVENT_LV, 29 MRP_VECATTR_EVENT_LV,
34 __MRP_VECATTR_EVENT_MAX 30 __MRP_VECATTR_EVENT_MAX
35 }; 31 };
36 32
37 struct mrp_skb_cb { 33 struct mrp_skb_cb {
38 struct mrp_msg_hdr *mh; 34 struct mrp_msg_hdr *mh;
39 struct mrp_vecattr_hdr *vah; 35 struct mrp_vecattr_hdr *vah;
40 unsigned char attrvalue[]; 36 unsigned char attrvalue[];
41 }; 37 };
42 38
43 static inline struct mrp_skb_cb *mrp_cb(struct 39 static inline struct mrp_skb_cb *mrp_cb(struct sk_buff *skb)
44 { 40 {
45 BUILD_BUG_ON(sizeof(struct mrp_skb_cb) 41 BUILD_BUG_ON(sizeof(struct mrp_skb_cb) >
46 sizeof_field(struct sk_bu !! 42 FIELD_SIZEOF(struct sk_buff, cb));
47 return (struct mrp_skb_cb *)skb->cb; 43 return (struct mrp_skb_cb *)skb->cb;
48 } 44 }
49 45
50 enum mrp_applicant_state { 46 enum mrp_applicant_state {
51 MRP_APPLICANT_INVALID, 47 MRP_APPLICANT_INVALID,
52 MRP_APPLICANT_VO, 48 MRP_APPLICANT_VO,
53 MRP_APPLICANT_VP, 49 MRP_APPLICANT_VP,
54 MRP_APPLICANT_VN, 50 MRP_APPLICANT_VN,
55 MRP_APPLICANT_AN, 51 MRP_APPLICANT_AN,
56 MRP_APPLICANT_AA, 52 MRP_APPLICANT_AA,
57 MRP_APPLICANT_QA, 53 MRP_APPLICANT_QA,
58 MRP_APPLICANT_LA, 54 MRP_APPLICANT_LA,
59 MRP_APPLICANT_AO, 55 MRP_APPLICANT_AO,
60 MRP_APPLICANT_QO, 56 MRP_APPLICANT_QO,
61 MRP_APPLICANT_AP, 57 MRP_APPLICANT_AP,
62 MRP_APPLICANT_QP, 58 MRP_APPLICANT_QP,
63 __MRP_APPLICANT_MAX 59 __MRP_APPLICANT_MAX
64 }; 60 };
65 #define MRP_APPLICANT_MAX (__MRP_APPLICA 61 #define MRP_APPLICANT_MAX (__MRP_APPLICANT_MAX - 1)
66 62
67 enum mrp_event { 63 enum mrp_event {
68 MRP_EVENT_NEW, 64 MRP_EVENT_NEW,
69 MRP_EVENT_JOIN, 65 MRP_EVENT_JOIN,
70 MRP_EVENT_LV, 66 MRP_EVENT_LV,
71 MRP_EVENT_TX, 67 MRP_EVENT_TX,
72 MRP_EVENT_R_NEW, 68 MRP_EVENT_R_NEW,
73 MRP_EVENT_R_JOIN_IN, 69 MRP_EVENT_R_JOIN_IN,
74 MRP_EVENT_R_IN, 70 MRP_EVENT_R_IN,
75 MRP_EVENT_R_JOIN_MT, 71 MRP_EVENT_R_JOIN_MT,
76 MRP_EVENT_R_MT, 72 MRP_EVENT_R_MT,
77 MRP_EVENT_R_LV, 73 MRP_EVENT_R_LV,
78 MRP_EVENT_R_LA, 74 MRP_EVENT_R_LA,
79 MRP_EVENT_REDECLARE, 75 MRP_EVENT_REDECLARE,
80 MRP_EVENT_PERIODIC, 76 MRP_EVENT_PERIODIC,
81 __MRP_EVENT_MAX 77 __MRP_EVENT_MAX
82 }; 78 };
83 #define MRP_EVENT_MAX (__MRP_EVENT_M 79 #define MRP_EVENT_MAX (__MRP_EVENT_MAX - 1)
84 80
85 enum mrp_tx_action { 81 enum mrp_tx_action {
86 MRP_TX_ACTION_NONE, 82 MRP_TX_ACTION_NONE,
87 MRP_TX_ACTION_S_NEW, 83 MRP_TX_ACTION_S_NEW,
88 MRP_TX_ACTION_S_JOIN_IN, 84 MRP_TX_ACTION_S_JOIN_IN,
89 MRP_TX_ACTION_S_JOIN_IN_OPTIONAL, 85 MRP_TX_ACTION_S_JOIN_IN_OPTIONAL,
90 MRP_TX_ACTION_S_IN_OPTIONAL, 86 MRP_TX_ACTION_S_IN_OPTIONAL,
91 MRP_TX_ACTION_S_LV, 87 MRP_TX_ACTION_S_LV,
92 }; 88 };
93 89
94 struct mrp_attr { 90 struct mrp_attr {
95 struct rb_node node; 91 struct rb_node node;
96 enum mrp_applicant_state state; 92 enum mrp_applicant_state state;
97 u8 type; 93 u8 type;
98 u8 len; 94 u8 len;
99 unsigned char value[ 95 unsigned char value[];
100 }; 96 };
101 97
102 enum mrp_applications { 98 enum mrp_applications {
103 MRP_APPLICATION_MVRP, 99 MRP_APPLICATION_MVRP,
104 __MRP_APPLICATION_MAX 100 __MRP_APPLICATION_MAX
105 }; 101 };
106 #define MRP_APPLICATION_MAX (__MRP_APPLICA 102 #define MRP_APPLICATION_MAX (__MRP_APPLICATION_MAX - 1)
107 103
108 struct mrp_application { 104 struct mrp_application {
109 enum mrp_applications type; 105 enum mrp_applications type;
110 unsigned int maxattr; 106 unsigned int maxattr;
111 struct packet_type pkttype; 107 struct packet_type pkttype;
112 unsigned char group_address[ 108 unsigned char group_address[ETH_ALEN];
113 u8 version; 109 u8 version;
114 }; 110 };
115 111
116 struct mrp_applicant { 112 struct mrp_applicant {
117 struct mrp_application *app; 113 struct mrp_application *app;
118 struct net_device *dev; 114 struct net_device *dev;
119 struct timer_list join_timer; 115 struct timer_list join_timer;
120 struct timer_list periodic_timer 116 struct timer_list periodic_timer;
121 117
122 spinlock_t lock; 118 spinlock_t lock;
123 struct sk_buff_head queue; 119 struct sk_buff_head queue;
124 struct sk_buff *pdu; 120 struct sk_buff *pdu;
125 struct rb_root mad; 121 struct rb_root mad;
126 struct rcu_head rcu; 122 struct rcu_head rcu;
127 bool active; 123 bool active;
128 }; 124 };
129 125
130 struct mrp_port { 126 struct mrp_port {
131 struct mrp_applicant __rcu *appli 127 struct mrp_applicant __rcu *applicants[MRP_APPLICATION_MAX + 1];
132 struct rcu_head rcu; 128 struct rcu_head rcu;
133 }; 129 };
134 130
135 int mrp_register_application(struct mrp_applic 131 int mrp_register_application(struct mrp_application *app);
136 void mrp_unregister_application(struct mrp_app 132 void mrp_unregister_application(struct mrp_application *app);
137 133
138 int mrp_init_applicant(struct net_device *dev, 134 int mrp_init_applicant(struct net_device *dev, struct mrp_application *app);
139 void mrp_uninit_applicant(struct net_device *d 135 void mrp_uninit_applicant(struct net_device *dev, struct mrp_application *app);
140 136
141 int mrp_request_join(const struct net_device * 137 int mrp_request_join(const struct net_device *dev,
142 const struct mrp_applicat 138 const struct mrp_application *app,
143 const void *value, u8 len 139 const void *value, u8 len, u8 type);
144 void mrp_request_leave(const struct net_device 140 void mrp_request_leave(const struct net_device *dev,
145 const struct mrp_applic 141 const struct mrp_application *app,
146 const void *value, u8 l 142 const void *value, u8 len, u8 type);
147 143
148 #endif /* _NET_MRP_H */ 144 #endif /* _NET_MRP_H */
149 145
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