1 /*-
2 * Copyright (c) 2015 Dmitry Vagin <daemon.hammer@ya.ru>
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 *
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24 * SUCH DAMAGE.
25 *
26 * $FreeBSD: releng/11.2/sys/netgraph/ng_checksum.h 309385 2016-12-02 05:36:37Z julian $
27 */
28
29 #ifndef _NETGRAPH_NG_CHECKSUM_H_
30 #define _NETGRAPH_NG_CHECKSUM_H_
31
32 /* Node type name. */
33 #define NG_CHECKSUM_NODE_TYPE "checksum"
34
35 /* Node type cookie. */
36 #define NGM_CHECKSUM_COOKIE 439419912
37
38 /* Hook names */
39 #define NG_CHECKSUM_HOOK_IN "in"
40 #define NG_CHECKSUM_HOOK_OUT "out"
41
42 /* Checksum flags */
43 #define NG_CHECKSUM_CSUM_IPV4 (CSUM_IP|CSUM_TCP|CSUM_UDP)
44 #define NG_CHECKSUM_CSUM_IPV6 (CSUM_TCP_IPV6|CSUM_UDP_IPV6)
45
46 /* Netgraph commands understood by this node type */
47 enum {
48 NGM_CHECKSUM_GETDLT = 1,
49 NGM_CHECKSUM_SETDLT,
50 NGM_CHECKSUM_GETCONFIG,
51 NGM_CHECKSUM_SETCONFIG,
52 NGM_CHECKSUM_GETCLR_STATS,
53 NGM_CHECKSUM_GET_STATS,
54 NGM_CHECKSUM_CLR_STATS,
55 };
56
57 /* Parsing declarations */
58
59 #define NG_CHECKSUM_CONFIG_TYPE { \
60 { "csum_flags", &ng_parse_uint64_type }, \
61 { "csum_offload", &ng_parse_uint64_type }, \
62 { NULL } \
63 }
64
65 #define NG_CHECKSUM_STATS_TYPE { \
66 { "Received", &ng_parse_uint64_type }, \
67 { "Processed", &ng_parse_uint64_type }, \
68 { "Dropped", &ng_parse_uint64_type }, \
69 { NULL } \
70 }
71
72 struct ng_checksum_config {
73 uint64_t csum_flags;
74 uint64_t csum_offload;
75 };
76
77 struct ng_checksum_stats {
78 uint64_t received;
79 uint64_t processed;
80 uint64_t dropped;
81 };
82
83 struct ng_checksum_vlan_header {
84 u_int16_t tag;
85 u_int16_t etype;
86 };
87
88 #endif /* _NETGRAPH_NG_CHECKSUM_H_ */
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