1 /*- 2 * Copyright (C) 2010 by Maxim Ignatenko <gelraen.ua@gmail.com> 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_PATCH_H_ 30 #define _NETGRAPH_NG_PATCH_H_ 31 32 /* Node type name. */ 33 #define NG_PATCH_NODE_TYPE "patch" 34 35 /* Node type cookie. */ 36 #define NGM_PATCH_COOKIE 1262445509 37 38 /* Hook names */ 39 #define NG_PATCH_HOOK_IN "in" 40 #define NG_PATCH_HOOK_OUT "out" 41 42 /* Netgraph commands understood by this node type */ 43 enum { 44 NGM_PATCH_SETCONFIG = 1, 45 NGM_PATCH_GETCONFIG, 46 NGM_PATCH_GET_STATS, 47 NGM_PATCH_CLR_STATS, 48 NGM_PATCH_GETCLR_STATS 49 }; 50 51 /* Patching modes */ 52 enum { 53 NG_PATCH_MODE_SET = 1, 54 NG_PATCH_MODE_ADD = 2, 55 NG_PATCH_MODE_SUB = 3, 56 NG_PATCH_MODE_MUL = 4, 57 NG_PATCH_MODE_DIV = 5, 58 NG_PATCH_MODE_NEG = 6, 59 NG_PATCH_MODE_AND = 7, 60 NG_PATCH_MODE_OR = 8, 61 NG_PATCH_MODE_XOR = 9, 62 NG_PATCH_MODE_SHL = 10, 63 NG_PATCH_MODE_SHR = 11 64 }; 65 66 struct ng_patch_op { 67 uint64_t value; 68 uint32_t offset; 69 uint16_t length; /* 1,2,4 or 8 (bytes) */ 70 uint16_t mode; 71 }; 72 73 #define NG_PATCH_OP_TYPE_INFO { \ 74 { "value", &ng_parse_uint64_type }, \ 75 { "offset", &ng_parse_uint32_type }, \ 76 { "length", &ng_parse_uint16_type }, \ 77 { "mode", &ng_parse_uint16_type }, \ 78 { NULL } \ 79 } 80 81 struct ng_patch_config { 82 uint32_t count; 83 uint32_t csum_flags; 84 struct ng_patch_op ops[]; 85 }; 86 87 #define NG_PATCH_CONFIG_TYPE_INFO { \ 88 { "count", &ng_parse_uint32_type }, \ 89 { "csum_flags", &ng_parse_uint32_type }, \ 90 { "ops", &ng_patch_confarr_type }, \ 91 { NULL } \ 92 } 93 94 struct ng_patch_stats { 95 uint64_t received; 96 uint64_t patched; 97 uint64_t dropped; 98 }; 99 100 #define NG_PATCH_STATS_TYPE_INFO { \ 101 { "received", &ng_parse_uint64_type }, \ 102 { "patched", &ng_parse_uint64_type }, \ 103 { "dropped", &ng_parse_uint64_type }, \ 104 { NULL } \ 105 } 106 107 #endif /* _NETGRAPH_NG_PATCH_H_ */ 108