fe267a5590
Mainly focus on files that use BSD 2-Clause license, however the tool I was using misidentified many licenses so this was mostly a manual - error prone - task. The Software Package Data Exchange (SPDX) group provides a specification to make it easier for automated tools to detect and summarize well known opensource licenses. We are gradually adopting the specification, noting that the tags are considered only advisory and do not, in any way, superceed or replace the license texts. No functional change intended.
136 lines
3.6 KiB
C
136 lines
3.6 KiB
C
/*-
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* SPDX-License-Identifier: BSD-2-Clause-FreeBSD
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*
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* Copyright (c) 2010 Maxim Ignatenko <gelraen.ua@gmail.com>
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* Copyright (c) 2015 Dmitry Vagin <daemon.hammer@ya.ru>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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#ifndef _NETGRAPH_NG_PATCH_H_
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#define _NETGRAPH_NG_PATCH_H_
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/* Node type name. */
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#define NG_PATCH_NODE_TYPE "patch"
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/* Node type cookie. */
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#define NGM_PATCH_COOKIE 1262445509
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/* Hook names */
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#define NG_PATCH_HOOK_IN "in"
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#define NG_PATCH_HOOK_OUT "out"
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/* Checksum flags */
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#define NG_PATCH_CSUM_IPV4 (CSUM_IP|CSUM_TCP|CSUM_UDP|CSUM_SCTP)
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#define NG_PATCH_CSUM_IPV6 (CSUM_TCP_IPV6|CSUM_UDP_IPV6|CSUM_SCTP_IPV6)
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/* Netgraph commands understood by this node type */
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enum {
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NGM_PATCH_SETCONFIG = 1,
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NGM_PATCH_GETCONFIG,
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NGM_PATCH_GET_STATS,
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NGM_PATCH_CLR_STATS,
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NGM_PATCH_GETCLR_STATS,
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NGM_PATCH_GETDLT,
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NGM_PATCH_SETDLT
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};
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/* Patching modes */
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enum {
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NG_PATCH_MODE_SET = 1,
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NG_PATCH_MODE_ADD = 2,
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NG_PATCH_MODE_SUB = 3,
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NG_PATCH_MODE_MUL = 4,
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NG_PATCH_MODE_DIV = 5,
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NG_PATCH_MODE_NEG = 6,
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NG_PATCH_MODE_AND = 7,
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NG_PATCH_MODE_OR = 8,
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NG_PATCH_MODE_XOR = 9,
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NG_PATCH_MODE_SHL = 10,
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NG_PATCH_MODE_SHR = 11
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};
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/* Parsing declarations */
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#define NG_PATCH_CONFIG_TYPE { \
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{ "count", &ng_parse_uint32_type }, \
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{ "csum_flags", &ng_parse_uint64_type }, \
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{ "relative_offset", &ng_parse_uint32_type }, \
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{ "ops", &ng_patch_ops_array_type }, \
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{ NULL } \
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}
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#define NG_PATCH_OP_TYPE { \
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{ "offset", &ng_parse_uint32_type }, \
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{ "length", &ng_parse_uint16_type }, \
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{ "mode", &ng_parse_uint16_type }, \
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{ "value", &ng_parse_uint64_type }, \
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{ NULL } \
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}
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#define NG_PATCH_STATS_TYPE { \
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{ "Received", &ng_parse_uint64_type }, \
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{ "Patched", &ng_parse_uint64_type }, \
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{ "Dropped", &ng_parse_uint64_type }, \
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{ NULL } \
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}
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union ng_patch_op_val {
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uint8_t v1;
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uint16_t v2;
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uint32_t v4;
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uint64_t v8;
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};
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struct ng_patch_op {
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uint32_t offset;
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uint16_t length; /* 1, 2, 4 or 8 (bytes) */
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uint16_t mode;
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union ng_patch_op_val val;
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};
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struct ng_patch_config {
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uint32_t count;
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uint64_t csum_flags;
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uint32_t relative_offset;
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struct ng_patch_op ops[];
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};
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struct ng_patch_stats {
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uint64_t received;
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uint64_t patched;
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uint64_t dropped;
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};
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struct ng_patch_vlan_header {
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u_int16_t tag;
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u_int16_t etype;
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};
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#define NG_PATCH_CONF_SIZE(count) (sizeof(struct ng_patch_config) + \
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(count) * sizeof(struct ng_patch_op))
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#endif /* _NETGRAPH_NG_PATCH_H_ */
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