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577421ebc5
to embed up to four counters in outgoing packets. The message specifies
the offset at which the counter should be inserted as well as the
parameters of the counter.
Example usage:
ngctl msg src0: setcounter \
'{ index=0 offset=0x40 flags=1 width=4 increment=1 max_val=12345 }'
Sponsored by: Sandvine Incorporated
140 lines
5.0 KiB
C
140 lines
5.0 KiB
C
/*
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* ng_source.h
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*/
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/*-
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* Copyright 2002 Sandvine Inc.
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* All rights reserved.
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*
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* Subject to the following obligations and disclaimer of warranty, use and
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* redistribution of this software, in source or object code forms, with or
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* without modifications are expressly permitted by Sandvine Inc.; provided,
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* however, that:
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* 1. Any and all reproductions of the source or object code must include the
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* copyright notice above and the following disclaimer of warranties; and
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* 2. No rights are granted, in any manner or form, to use Sandvine Inc.
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* trademarks, including the mark "SANDVINE" on advertising, endorsements,
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* or otherwise except as such appears in the above copyright notice or in
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* the software.
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*
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* THIS SOFTWARE IS BEING PROVIDED BY SANDVINE "AS IS", AND TO THE MAXIMUM
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* EXTENT PERMITTED BY LAW, SANDVINE MAKES NO REPRESENTATIONS OR WARRANTIES,
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* EXPRESS OR IMPLIED, REGARDING THIS SOFTWARE, INCLUDING WITHOUT LIMITATION,
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* ANY AND ALL IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
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* PURPOSE, OR NON-INFRINGEMENT. SANDVINE DOES NOT WARRANT, GUARANTEE, OR
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* MAKE ANY REPRESENTATIONS REGARDING THE USE OF, OR THE RESULTS OF THE
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* USE OF THIS SOFTWARE IN TERMS OF ITS CORRECTNESS, ACCURACY, RELIABILITY
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* OR OTHERWISE. IN NO EVENT SHALL SANDVINE BE LIABLE FOR ANY DAMAGES
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* RESULTING FROM OR ARISING OUT OF ANY USE OF THIS SOFTWARE, INCLUDING
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* WITHOUT LIMITATION, ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY,
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* PUNITIVE, OR CONSEQUENTIAL DAMAGES, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES, LOSS OF USE, DATA OR PROFITS, HOWEVER CAUSED AND UNDER ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF SANDVINE IS ADVISED OF THE POSSIBILITY OF SUCH
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* DAMAGE.
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*
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* Author: Dave Chapeskie <dchapeskie@sandvine.com>
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*
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* $FreeBSD$
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*/
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#ifndef _NETGRAPH_NG_SOURCE_H_
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#define _NETGRAPH_NG_SOURCE_H_
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/* Node type name and magic cookie */
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#define NG_SOURCE_NODE_TYPE "source"
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#define NGM_SOURCE_COOKIE 1110646684
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/* Hook names */
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#define NG_SOURCE_HOOK_INPUT "input"
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#define NG_SOURCE_HOOK_OUTPUT "output"
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/* Statistics structure returned by NGM_SOURCE_GET_STATS */
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struct ng_source_stats {
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uint64_t outOctets;
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uint64_t outFrames;
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uint32_t queueOctets;
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uint32_t queueFrames;
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uint32_t maxPps;
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struct timeval startTime;
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struct timeval endTime;
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struct timeval elapsedTime;
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struct timeval lastTime;
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};
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extern const struct ng_parse_type ng_source_timeval_type;
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/* Keep this in sync with the above structure definition */
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#define NG_SOURCE_STATS_TYPE_INFO { \
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{ "outOctets", &ng_parse_uint64_type }, \
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{ "outFrames", &ng_parse_uint64_type }, \
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{ "queueOctets", &ng_parse_uint32_type }, \
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{ "queueFrames", &ng_parse_uint32_type }, \
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{ "maxPps", &ng_parse_uint32_type }, \
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{ "startTime", &ng_source_timeval_type }, \
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{ "endTime", &ng_source_timeval_type }, \
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{ "elapsedTime", &ng_source_timeval_type }, \
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{ "lastTime", &ng_source_timeval_type }, \
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{ NULL } \
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}
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/* Packet embedding info for NGM_SOURCE_GET/SET_TIMESTAMP */
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struct ng_source_embed_info {
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uint16_t offset; /* offset from ethernet header */
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uint8_t flags;
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uint8_t spare;
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};
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#define NGM_SOURCE_EMBED_ENABLE 0x01 /* enable embedding */
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#define NGM_SOURCE_INC_CNT_PER_LIST 0x02 /* increment once per list */
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/* Keep this in sync with the above structure definition. */
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#define NG_SOURCE_EMBED_TYPE_INFO { \
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{ "offset", &ng_parse_hint16_type }, \
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{ "flags", &ng_parse_hint8_type }, \
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{ NULL } \
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}
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/* Packet embedding info for NGM_SOURCE_GET/SET_COUNTER */
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#define NG_SOURCE_COUNTERS 4
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struct ng_source_embed_cnt_info {
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uint16_t offset; /* offset from ethernet header */
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uint8_t flags; /* as above */
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uint8_t width; /* in bytes (1, 2, 4) */
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uint32_t next_val;
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uint32_t min_val;
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uint32_t max_val;
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int32_t increment;
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uint8_t index; /* which counter (0..3) */
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};
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/* Keep this in sync with the above structure definition. */
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#define NG_SOURCE_EMBED_CNT_TYPE_INFO { \
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{ "offset", &ng_parse_hint16_type }, \
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{ "flags", &ng_parse_hint8_type }, \
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{ "width", &ng_parse_uint8_type }, \
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{ "next_val", &ng_parse_uint32_type }, \
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{ "min_val", &ng_parse_uint32_type }, \
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{ "max_val", &ng_parse_uint32_type }, \
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{ "increment", &ng_parse_int32_type }, \
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{ "index", &ng_parse_uint8_type }, \
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{ NULL } \
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}
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/* Netgraph commands */
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enum {
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NGM_SOURCE_GET_STATS = 1, /* get stats */
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NGM_SOURCE_CLR_STATS, /* clear stats */
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NGM_SOURCE_GETCLR_STATS, /* atomically get and clear stats */
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NGM_SOURCE_START, /* start sending queued data */
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NGM_SOURCE_STOP, /* stop sending queued data */
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NGM_SOURCE_CLR_DATA, /* clear the queued data */
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NGM_SOURCE_SETIFACE, /* configure downstream iface */
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NGM_SOURCE_SETPPS, /* rate-limiting packets per second */
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NGM_SOURCE_SET_TIMESTAMP, /* embed xmit timestamp */
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NGM_SOURCE_GET_TIMESTAMP,
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NGM_SOURCE_SET_COUNTER, /* embed counter */
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NGM_SOURCE_GET_COUNTER,
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};
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#endif /* _NETGRAPH_NG_SOURCE_H_ */
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