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