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