/*-
* SPDX-License-Identifier: BSD-2-Clause
*
* Copyright (c) 2004-2008 University of Zagreb
* Copyright (c) 2007-2008 FreeBSD Foundation
*
* This software was developed by the University of Zagreb and the
* FreeBSD Foundation under sponsorship by the Stichting NLnet and the
* FreeBSD Foundation.
*
* 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_PIPE_H_
#define _NETGRAPH_PIPE_H_
/* Node type name and magic cookie */
#define NG_PIPE_NODE_TYPE "pipe"
#define NGM_PIPE_COOKIE 200708191
/* Hook names */
#define NG_PIPE_HOOK_UPPER "upper"
#define NG_PIPE_HOOK_LOWER "lower"
#define MAX_FSIZE 65536 /* Largest supported frame size, in bytes, for BER */
#define MAX_OHSIZE 256 /* Largest supported dummy-framing size, in bytes */
/* Statistics structure for one hook */
struct ng_pipe_hookstat {
u_int64_t fwd_octets;
u_int64_t fwd_frames;
u_int64_t in_disc_octets;
u_int64_t in_disc_frames;
u_int64_t out_disc_octets;
u_int64_t out_disc_frames;
};
/* Keep this in sync with the above structure definition */
#define NG_PIPE_HOOKSTAT_INFO { \
{ "FwdOctets", &ng_parse_uint64_type }, \
{ "FwdFrames", &ng_parse_uint64_type }, \
{ "queueDropOctets", &ng_parse_uint64_type }, \
{ "queueDropFrames", &ng_parse_uint64_type }, \
{ "delayDropOctets", &ng_parse_uint64_type }, \
{ "delayDropFrames", &ng_parse_uint64_type }, \
{ NULL }, \
}
/* Statistics structure returned by NGM_PIPE_GET_STATS */
struct ng_pipe_stats {
struct ng_pipe_hookstat downstream;
struct ng_pipe_hookstat upstream;
};
/* Keep this in sync with the above structure definition */
#define NG_PIPE_STATS_INFO(hstype) { \
{ "downstream", (hstype) }, \
{ "upstream", (hstype) }, \
{ NULL }, \
}
/* Runtime structure for one hook */
struct ng_pipe_hookrun {
u_int32_t fifo_queues;
u_int32_t qin_octets;
u_int32_t qin_frames;
u_int32_t qout_octets;
u_int32_t qout_frames;
};
/* Keep this in sync with the above structure definition */
#define NG_PIPE_HOOKRUN_INFO { \
{ "queues", &ng_parse_uint32_type }, \
{ "queuedOctets", &ng_parse_uint32_type }, \
{ "queuedFrames", &ng_parse_uint32_type }, \
{ "delayedOctets", &ng_parse_uint32_type }, \
{ "delayedFrames", &ng_parse_uint32_type }, \
{ NULL }, \
}
/* Runtime structure returned by NGM_PIPE_GET_RUN */
struct ng_pipe_run {
struct ng_pipe_hookrun downstream;
struct ng_pipe_hookrun upstream;
};
/* Keep this in sync with the above structure definition */
#define NG_PIPE_RUN_INFO(hstype) { \
{ "downstream", (hstype) }, \
{ "upstream", (hstype) }, \
{ NULL }, \
}
/* Config structure for one hook */
struct ng_pipe_hookcfg {
u_int64_t bandwidth;
u_int64_t ber;
u_int32_t qin_size_limit;
u_int32_t qout_size_limit;
u_int32_t duplicate;
u_int32_t fifo;
u_int32_t drr;
u_int32_t wfq;
u_int32_t droptail;
u_int32_t drophead;
};
/* Keep this in sync with the above structure definition */
#define NG_PIPE_HOOKCFG_INFO { \
{ "bandwidth", &ng_parse_uint64_type }, \
{ "BER", &ng_parse_uint64_type }, \
{ "queuelen", &ng_parse_uint32_type }, \
{ "delaylen", &ng_parse_uint32_type }, \
{ "duplicate", &ng_parse_uint32_type }, \
{ "fifo", &ng_parse_uint32_type }, \
{ "drr", &ng_parse_uint32_type }, \
{ "wfq", &ng_parse_uint32_type }, \
{ "droptail", &ng_parse_uint32_type }, \
{ "drophead", &ng_parse_uint32_type }, \
{ NULL }, \
}
/* Config structure returned by NGM_PIPE_GET_CFG */
struct ng_pipe_cfg {
u_int64_t bandwidth;
u_int64_t delay;
u_int32_t header_offset;
u_int32_t overhead;
struct ng_pipe_hookcfg downstream;
struct ng_pipe_hookcfg upstream;
};
/* Keep this in sync with the above structure definition */
#define NG_PIPE_CFG_INFO(hstype) { \
{ "bandwidth", &ng_parse_uint64_type }, \
{ "delay", &ng_parse_uint64_type }, \
{ "header_offset", &ng_parse_uint32_type }, \
{ "overhead", &ng_parse_uint32_type }, \
{ "downstream", (hstype) }, \
{ "upstream", (hstype) }, \
{ NULL }, \
}
/* Netgraph commands */
enum {
NGM_PIPE_GET_STATS=1, /* get stats */
NGM_PIPE_CLR_STATS, /* clear stats */
NGM_PIPE_GETCLR_STATS, /* atomically get and clear stats */
NGM_PIPE_GET_RUN, /* get current runtime status */
NGM_PIPE_GET_CFG, /* get configurable parameters */
NGM_PIPE_SET_CFG, /* set configurable parameters */
};
#endif /* _NETGRAPH_PIPE_H_ */
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