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 27 #ifndef _NETGRAPH_NG_CHECKSUM_H_ 28 #define _NETGRAPH_NG_CHECKSUM_H_ 29 30 /* Node type name. */ 31 #define NG_CHECKSUM_NODE_TYPE "checksum" 32 33 /* Node type cookie. */ 34 #define NGM_CHECKSUM_COOKIE 439419912 35 36 /* Hook names */ 37 #define NG_CHECKSUM_HOOK_IN "in" 38 #define NG_CHECKSUM_HOOK_OUT "out" 39 40 /* Checksum flags */ 41 #define NG_CHECKSUM_CSUM_IPV4 (CSUM_IP|CSUM_TCP|CSUM_UDP) 42 #define NG_CHECKSUM_CSUM_IPV6 (CSUM_TCP_IPV6|CSUM_UDP_IPV6) 43 44 /* Netgraph commands understood by this node type */ 45 enum { 46 NGM_CHECKSUM_GETDLT = 1, 47 NGM_CHECKSUM_SETDLT, 48 NGM_CHECKSUM_GETCONFIG, 49 NGM_CHECKSUM_SETCONFIG, 50 NGM_CHECKSUM_GETCLR_STATS, 51 NGM_CHECKSUM_GET_STATS, 52 NGM_CHECKSUM_CLR_STATS, 53 }; 54 55 /* Parsing declarations */ 56 57 #define NG_CHECKSUM_CONFIG_TYPE { \ 58 { "csum_flags", &ng_parse_uint64_type }, \ 59 { "csum_offload", &ng_parse_uint64_type }, \ 60 { NULL } \ 61 } 62 63 #define NG_CHECKSUM_STATS_TYPE { \ 64 { "Received", &ng_parse_uint64_type }, \ 65 { "Processed", &ng_parse_uint64_type }, \ 66 { "Dropped", &ng_parse_uint64_type }, \ 67 { NULL } \ 68 } 69 70 struct ng_checksum_config { 71 uint64_t csum_flags; 72 uint64_t csum_offload; 73 }; 74 75 struct ng_checksum_stats { 76 uint64_t received; 77 uint64_t processed; 78 uint64_t dropped; 79 }; 80 81 struct ng_checksum_vlan_header { 82 u_int16_t tag; 83 u_int16_t etype; 84 }; 85 86 #endif /* _NETGRAPH_NG_CHECKSUM_H_ */ 87