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
15struct hsr_node;
16
17struct 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_vlan;
26 bool is_local_dest;
27 bool is_local_exclusive;
28 bool is_from_san;
29};
30
31void hsr_del_self_node(struct hsr_priv *hsr);
32void hsr_del_nodes(struct list_head *node_db);
33struct hsr_node *hsr_get_node(struct hsr_port *port, struct list_head *node_db,
34 struct sk_buff *skb, bool is_sup,
35 enum hsr_port_type rx_port);
36void hsr_handle_sup_frame(struct hsr_frame_info *frame);
37bool hsr_addr_is_self(struct hsr_priv *hsr, unsigned char *addr);
38
39void hsr_addr_subst_source(struct hsr_node *node, struct sk_buff *skb);
40void hsr_addr_subst_dest(struct hsr_node *node_src, struct sk_buff *skb,
41 struct hsr_port *port);
42
43void hsr_register_frame_in(struct hsr_node *node, struct hsr_port *port,
44 u16 sequence_nr);
45int hsr_register_frame_out(struct hsr_port *port, struct hsr_node *node,
46 u16 sequence_nr);
47
48void hsr_prune_nodes(struct timer_list *t);
49
50int hsr_create_self_node(struct hsr_priv *hsr,
51 const unsigned char addr_a[ETH_ALEN],
52 const unsigned char addr_b[ETH_ALEN]);
53
54void *hsr_get_next_node(struct hsr_priv *hsr, void *_pos,
55 unsigned char addr[ETH_ALEN]);
56
57int hsr_get_node_data(struct hsr_priv *hsr,
58 const unsigned char *addr,
59 unsigned char addr_b[ETH_ALEN],
60 unsigned int *addr_b_ifindex,
61 int *if1_age,
62 u16 *if1_seq,
63 int *if2_age,
64 u16 *if2_seq);
65
66void prp_handle_san_frame(bool san, enum hsr_port_type port,
67 struct hsr_node *node);
68void prp_update_san_info(struct hsr_node *node, bool is_sup);
69
70struct hsr_node {
71 struct list_head mac_list;
72 /* Protect R/W access to seq_out */
73 spinlock_t seq_out_lock;
74 unsigned char macaddress_A[ETH_ALEN];
75 unsigned char macaddress_B[ETH_ALEN];
76 /* Local slave through which AddrB frames are received from this node */
77 enum hsr_port_type addr_B_port;
78 unsigned long time_in[HSR_PT_PORTS];
79 bool time_in_stale[HSR_PT_PORTS];
80 unsigned long time_out[HSR_PT_PORTS];
81 /* if the node is a SAN */
82 bool san_a;
83 bool san_b;
84 u16 seq_out[HSR_PT_PORTS];
85 bool removed;
86 struct rcu_head rcu_head;
87};
88
89#endif /* __HSR_FRAMEREG_H */
90

source code of linux/net/hsr/hsr_framereg.h