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 * $FreeBSD$ 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_ */ 89