1 /* SPDX-License-Identifier: GPL-2.0 */ 2 /* Copyright 2011-2014 Autronica Fire and Security AS 3 * 4 * Author(s): 5 * 2011-2014 Arvid Brodin, arvid.brodin@alten.se 6 * 7 * include file for HSR and PRP. 8 */ 9 10 #ifndef __HSR_FRAMEREG_H 11 #define __HSR_FRAMEREG_H 12 13 #include "hsr_main.h" 14 15 struct hsr_node; 16 17 struct hsr_frame_info { 18 struct sk_buff *skb_std; 19 struct sk_buff *skb_hsr; 20 struct sk_buff *skb_prp; 21 struct hsr_port *port_rcv; 22 struct hsr_node *node_src; 23 u16 sequence_nr; 24 bool is_supervision; 25 bool is_proxy_supervision; 26 bool is_vlan; 27 bool is_local_dest; 28 bool is_local_exclusive; 29 bool is_from_san; 30 }; 31 32 void hsr_del_self_node(struct hsr_priv *hsr); 33 void hsr_del_nodes(struct list_head *node_db); 34 struct hsr_node *hsr_get_node(struct hsr_port *port, struct list_head *node_db, 35 struct sk_buff *skb, bool is_sup, 36 enum hsr_port_type rx_port); 37 void hsr_handle_sup_frame(struct hsr_frame_info *frame); 38 bool hsr_addr_is_self(struct hsr_priv *hsr, unsigned char *addr); 39 bool hsr_addr_is_redbox(struct hsr_priv *hsr, unsigned char *addr); 40 41 void hsr_addr_subst_source(struct hsr_node *node, struct sk_buff *skb); 42 void hsr_addr_subst_dest(struct hsr_node *node_src, struct sk_buff *skb, 43 struct hsr_port *port); 44 45 void hsr_register_frame_in(struct hsr_node *node, struct hsr_port *port, 46 u16 sequence_nr); 47 int hsr_register_frame_out(struct hsr_port *port, struct hsr_node *node, 48 u16 sequence_nr); 49 50 void hsr_prune_nodes(struct timer_list *t); 51 void hsr_prune_proxy_nodes(struct timer_list *t); 52 53 int hsr_create_self_node(struct hsr_priv *hsr, 54 const unsigned char addr_a[ETH_ALEN], 55 const unsigned char addr_b[ETH_ALEN]); 56 57 void *hsr_get_next_node(struct hsr_priv *hsr, void *_pos, 58 unsigned char addr[ETH_ALEN]); 59 60 int hsr_get_node_data(struct hsr_priv *hsr, 61 const unsigned char *addr, 62 unsigned char addr_b[ETH_ALEN], 63 unsigned int *addr_b_ifindex, 64 int *if1_age, 65 u16 *if1_seq, 66 int *if2_age, 67 u16 *if2_seq); 68 69 void prp_handle_san_frame(bool san, enum hsr_port_type port, 70 struct hsr_node *node); 71 void prp_update_san_info(struct hsr_node *node, bool is_sup); 72 73 bool hsr_is_node_in_db(struct list_head *node_db, 74 const unsigned char addr[ETH_ALEN]); 75 76 struct hsr_node { 77 struct list_head mac_list; 78 /* Protect R/W access to seq_out */ 79 spinlock_t seq_out_lock; 80 unsigned char macaddress_A[ETH_ALEN]; 81 unsigned char macaddress_B[ETH_ALEN]; 82 /* Local slave through which AddrB frames are received from this node */ 83 enum hsr_port_type addr_B_port; 84 unsigned long time_in[HSR_PT_PORTS]; 85 bool time_in_stale[HSR_PT_PORTS]; 86 unsigned long time_out[HSR_PT_PORTS]; 87 /* if the node is a SAN */ 88 bool san_a; 89 bool san_b; 90 u16 seq_out[HSR_PT_PORTS]; 91 bool removed; 92 struct rcu_head rcu_head; 93 }; 94 95 #endif /* __HSR_FRAMEREG_H */ 96