131 lines
4.5 KiB
C
131 lines
4.5 KiB
C
/*-
|
|
* Copyright (c) 2006 Vadim Goncharov <vadimnuclight@tpu.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 unmodified, 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.
|
|
*
|
|
* $FreeBSD$
|
|
*/
|
|
|
|
#ifndef _NETGRAPH_NG_TAG_H_
|
|
#define _NETGRAPH_NG_TAG_H_
|
|
|
|
/* Node type name and magic cookie. */
|
|
#define NG_TAG_NODE_TYPE "tag"
|
|
#define NGM_TAG_COOKIE 1149771193
|
|
|
|
/*
|
|
* The types of tag_cookie, tag_len and tag_id in structures below
|
|
* must be the same as corresponding members m_tag_cookie, m_tag_len
|
|
* and m_tag_id in struct m_tag (defined in <sys/mbuf.h>).
|
|
*/
|
|
|
|
/* Tag match structure for every (input) hook. */
|
|
struct ng_tag_hookin {
|
|
char thisHook[NG_HOOKSIZ]; /* name of hook */
|
|
char ifMatch[NG_HOOKSIZ]; /* match dest hook */
|
|
char ifNotMatch[NG_HOOKSIZ]; /* !match dest hook */
|
|
uint8_t strip; /* strip tag if found */
|
|
uint32_t tag_cookie; /* ABI/Module ID */
|
|
uint16_t tag_id; /* tag ID */
|
|
uint16_t tag_len; /* length of data */
|
|
uint8_t tag_data[0]; /* tag data */
|
|
};
|
|
|
|
/* Tag set structure for every (output) hook. */
|
|
struct ng_tag_hookout {
|
|
char thisHook[NG_HOOKSIZ]; /* name of hook */
|
|
uint32_t tag_cookie; /* ABI/Module ID */
|
|
uint16_t tag_id; /* tag ID */
|
|
uint16_t tag_len; /* length of data */
|
|
uint8_t tag_data[0]; /* tag data */
|
|
};
|
|
|
|
#define NG_TAG_HOOKIN_SIZE(taglen) \
|
|
(sizeof(struct ng_tag_hookin) + (taglen))
|
|
|
|
#define NG_TAG_HOOKOUT_SIZE(taglen) \
|
|
(sizeof(struct ng_tag_hookout) + (taglen))
|
|
|
|
/* Keep this in sync with the above structures definitions. */
|
|
#define NG_TAG_HOOKIN_TYPE_INFO(tdtype) { \
|
|
{ "thisHook", &ng_parse_hookbuf_type }, \
|
|
{ "ifMatch", &ng_parse_hookbuf_type }, \
|
|
{ "ifNotMatch", &ng_parse_hookbuf_type }, \
|
|
{ "strip", &ng_parse_uint8_type }, \
|
|
{ "tag_cookie", &ng_parse_uint32_type }, \
|
|
{ "tag_id", &ng_parse_uint16_type }, \
|
|
{ "tag_len", &ng_parse_uint16_type }, \
|
|
{ "tag_data", (tdtype) }, \
|
|
{ NULL } \
|
|
}
|
|
|
|
#define NG_TAG_HOOKOUT_TYPE_INFO(tdtype) { \
|
|
{ "thisHook", &ng_parse_hookbuf_type }, \
|
|
{ "tag_cookie", &ng_parse_uint32_type }, \
|
|
{ "tag_id", &ng_parse_uint16_type }, \
|
|
{ "tag_len", &ng_parse_uint16_type }, \
|
|
{ "tag_data", (tdtype) }, \
|
|
{ NULL } \
|
|
}
|
|
|
|
#ifdef NG_TAG_DEBUG
|
|
|
|
/* Statistics structure for one hook. */
|
|
struct ng_tag_hookstat {
|
|
uint64_t recvFrames;
|
|
uint64_t recvOctets;
|
|
uint64_t recvMatchFrames;
|
|
uint64_t recvMatchOctets;
|
|
uint64_t xmitFrames;
|
|
uint64_t xmitOctets;
|
|
};
|
|
|
|
/* Keep this in sync with the above structure definition. */
|
|
#define NG_TAG_HOOKSTAT_TYPE_INFO { \
|
|
{ "recvFrames", &ng_parse_uint64_type }, \
|
|
{ "recvOctets", &ng_parse_uint64_type }, \
|
|
{ "recvMatchFrames", &ng_parse_uint64_type }, \
|
|
{ "recvMatchOctets", &ng_parse_uint64_type }, \
|
|
{ "xmitFrames", &ng_parse_uint64_type }, \
|
|
{ "xmitOctets", &ng_parse_uint64_type }, \
|
|
{ NULL } \
|
|
}
|
|
|
|
#endif /* NG_TAG_DEBUG */
|
|
|
|
/* Netgraph commands. */
|
|
enum {
|
|
NGM_TAG_SET_HOOKIN = 1, /* supply a struct ng_tag_hookin */
|
|
NGM_TAG_GET_HOOKIN, /* returns a struct ng_tag_hookin */
|
|
NGM_TAG_SET_HOOKOUT, /* supply a struct ng_tag_hookout */
|
|
NGM_TAG_GET_HOOKOUT, /* returns a struct ng_tag_hookout */
|
|
#ifdef NG_TAG_DEBUG
|
|
NGM_TAG_GET_STATS, /* supply name as char[NG_HOOKSIZ] */
|
|
NGM_TAG_CLR_STATS, /* supply name as char[NG_HOOKSIZ] */
|
|
NGM_TAG_GETCLR_STATS, /* supply name as char[NG_HOOKSIZ] */
|
|
#endif
|
|
};
|
|
|
|
#endif /* _NETGRAPH_NG_TAG_H_ */
|