/*-
* Copyright (c) 2015 Dmitry Vagin <daemon.hammer@ya.ru>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#ifndef _NETGRAPH_NG_CHECKSUM_H_
#define _NETGRAPH_NG_CHECKSUM_H_
/* Node type name. */
#define NG_CHECKSUM_NODE_TYPE "checksum"
/* Node type cookie. */
#define NGM_CHECKSUM_COOKIE 439419912
/* Hook names */
#define NG_CHECKSUM_HOOK_IN "in"
#define NG_CHECKSUM_HOOK_OUT "out"
/* Checksum flags */
#define NG_CHECKSUM_CSUM_IPV4 (CSUM_IP|CSUM_TCP|CSUM_UDP)
#define NG_CHECKSUM_CSUM_IPV6 (CSUM_TCP_IPV6|CSUM_UDP_IPV6)
/* Netgraph commands understood by this node type */
enum {
NGM_CHECKSUM_GETDLT = 1,
NGM_CHECKSUM_SETDLT,
NGM_CHECKSUM_GETCONFIG,
NGM_CHECKSUM_SETCONFIG,
NGM_CHECKSUM_GETCLR_STATS,
NGM_CHECKSUM_GET_STATS,
NGM_CHECKSUM_CLR_STATS,
};
/* Parsing declarations */
#define NG_CHECKSUM_CONFIG_TYPE { \
{ "csum_flags", &ng_parse_uint64_type }, \
{ "csum_offload", &ng_parse_uint64_type }, \
{ NULL } \
}
#define NG_CHECKSUM_STATS_TYPE { \
{ "Received", &ng_parse_uint64_type }, \
{ "Processed", &ng_parse_uint64_type }, \
{ "Dropped", &ng_parse_uint64_type }, \
{ NULL } \
}
struct ng_checksum_config {
uint64_t csum_flags;
uint64_t csum_offload;
};
struct ng_checksum_stats {
uint64_t received;
uint64_t processed;
uint64_t dropped;
};
struct ng_checksum_vlan_header {
u_int16_t tag;
u_int16_t etype;
};
#endif /* _NETGRAPH_NG_CHECKSUM_H_ */
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