1 | /* SPDX-License-Identifier: (GPL-2.0 OR BSD-3-Clause) */ |
2 | /* Copyright (c) 2002-2007 Volkswagen Group Electronic Research |
3 | * All rights reserved. |
4 | * |
5 | * Redistribution and use in source and binary forms, with or without |
6 | * modification, are permitted provided that the following conditions |
7 | * are met: |
8 | * 1. Redistributions of source code must retain the above copyright |
9 | * notice, this list of conditions and the following disclaimer. |
10 | * 2. Redistributions in binary form must reproduce the above copyright |
11 | * notice, this list of conditions and the following disclaimer in the |
12 | * documentation and/or other materials provided with the distribution. |
13 | * 3. Neither the name of Volkswagen nor the names of its contributors |
14 | * may be used to endorse or promote products derived from this software |
15 | * without specific prior written permission. |
16 | * |
17 | * Alternatively, provided that this notice is retained in full, this |
18 | * software may be distributed under the terms of the GNU General |
19 | * Public License ("GPL") version 2, in which case the provisions of the |
20 | * GPL apply INSTEAD OF those given above. |
21 | * |
22 | * The provided data structures and external interfaces from this code |
23 | * are not restricted to be used by modules with a GPL compatible license. |
24 | * |
25 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
26 | * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
27 | * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
28 | * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
29 | * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
30 | * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
31 | * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
32 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
33 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
34 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
35 | * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH |
36 | * DAMAGE. |
37 | * |
38 | */ |
39 | |
40 | #ifndef AF_CAN_H |
41 | #define AF_CAN_H |
42 | |
43 | #include <linux/skbuff.h> |
44 | #include <linux/netdevice.h> |
45 | #include <linux/list.h> |
46 | #include <linux/rcupdate.h> |
47 | #include <linux/can.h> |
48 | |
49 | /* af_can rx dispatcher structures */ |
50 | |
51 | struct receiver { |
52 | struct hlist_node list; |
53 | canid_t can_id; |
54 | canid_t mask; |
55 | unsigned long matches; |
56 | void (*func)(struct sk_buff *skb, void *data); |
57 | void *data; |
58 | char *ident; |
59 | struct sock *sk; |
60 | struct rcu_head rcu; |
61 | }; |
62 | |
63 | /* statistic structures */ |
64 | |
65 | /* can be reset e.g. by can_init_stats() */ |
66 | struct can_pkg_stats { |
67 | unsigned long jiffies_init; |
68 | |
69 | unsigned long rx_frames; |
70 | unsigned long tx_frames; |
71 | unsigned long matches; |
72 | |
73 | unsigned long total_rx_rate; |
74 | unsigned long total_tx_rate; |
75 | unsigned long total_rx_match_ratio; |
76 | |
77 | unsigned long current_rx_rate; |
78 | unsigned long current_tx_rate; |
79 | unsigned long current_rx_match_ratio; |
80 | |
81 | unsigned long max_rx_rate; |
82 | unsigned long max_tx_rate; |
83 | unsigned long max_rx_match_ratio; |
84 | |
85 | unsigned long rx_frames_delta; |
86 | unsigned long tx_frames_delta; |
87 | unsigned long matches_delta; |
88 | }; |
89 | |
90 | /* persistent statistics */ |
91 | struct can_rcv_lists_stats { |
92 | unsigned long stats_reset; |
93 | unsigned long user_reset; |
94 | unsigned long rcv_entries; |
95 | unsigned long rcv_entries_max; |
96 | }; |
97 | |
98 | /* function prototypes for the CAN networklayer procfs (proc.c) */ |
99 | void can_init_proc(struct net *net); |
100 | void can_remove_proc(struct net *net); |
101 | void can_stat_update(struct timer_list *t); |
102 | |
103 | #endif /* AF_CAN_H */ |
104 | |