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138 lines
4.9 KiB
C
138 lines
4.9 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
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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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