114 lines
4.6 KiB
C
114 lines
4.6 KiB
C
/*
|
|
* ng_one2many.h
|
|
*/
|
|
|
|
/*-
|
|
* Copyright (c) 2000 Whistle Communications, Inc.
|
|
* All rights reserved.
|
|
*
|
|
* Subject to the following obligations and disclaimer of warranty, use and
|
|
* redistribution of this software, in source or object code forms, with or
|
|
* without modifications are expressly permitted by Whistle Communications;
|
|
* provided, however, that:
|
|
* 1. Any and all reproductions of the source or object code must include the
|
|
* copyright notice above and the following disclaimer of warranties; and
|
|
* 2. No rights are granted, in any manner or form, to use Whistle
|
|
* Communications, Inc. trademarks, including the mark "WHISTLE
|
|
* COMMUNICATIONS" on advertising, endorsements, or otherwise except as
|
|
* such appears in the above copyright notice or in the software.
|
|
*
|
|
* THIS SOFTWARE IS BEING PROVIDED BY WHISTLE COMMUNICATIONS "AS IS", AND
|
|
* TO THE MAXIMUM EXTENT PERMITTED BY LAW, WHISTLE COMMUNICATIONS MAKES NO
|
|
* REPRESENTATIONS OR WARRANTIES, EXPRESS OR IMPLIED, REGARDING THIS SOFTWARE,
|
|
* INCLUDING WITHOUT LIMITATION, ANY AND ALL IMPLIED WARRANTIES OF
|
|
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT.
|
|
* WHISTLE COMMUNICATIONS DOES NOT WARRANT, GUARANTEE, OR MAKE ANY
|
|
* REPRESENTATIONS REGARDING THE USE OF, OR THE RESULTS OF THE USE OF THIS
|
|
* SOFTWARE IN TERMS OF ITS CORRECTNESS, ACCURACY, RELIABILITY OR OTHERWISE.
|
|
* IN NO EVENT SHALL WHISTLE COMMUNICATIONS BE LIABLE FOR ANY DAMAGES
|
|
* RESULTING FROM OR ARISING OUT OF ANY USE OF THIS SOFTWARE, INCLUDING
|
|
* WITHOUT LIMITATION, ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY,
|
|
* PUNITIVE, OR CONSEQUENTIAL DAMAGES, PROCUREMENT OF SUBSTITUTE GOODS OR
|
|
* SERVICES, LOSS OF USE, DATA OR PROFITS, HOWEVER CAUSED AND UNDER 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 WHISTLE COMMUNICATIONS IS ADVISED OF THE POSSIBILITY
|
|
* OF SUCH DAMAGE.
|
|
*
|
|
* Author: Archie Cobbs <archie@freebsd.org>
|
|
*
|
|
* $FreeBSD$
|
|
*/
|
|
|
|
#ifndef _NETGRAPH_NG_ONE2MANY_H_
|
|
#define _NETGRAPH_NG_ONE2MANY_H_
|
|
|
|
/* Node type name and magic cookie */
|
|
#define NG_ONE2MANY_NODE_TYPE "one2many"
|
|
#define NGM_ONE2MANY_COOKIE 1100897444
|
|
|
|
/* Hook names */
|
|
#define NG_ONE2MANY_HOOK_ONE "one"
|
|
#define NG_ONE2MANY_HOOK_MANY_PREFIX "many" /* append decimal integer */
|
|
#define NG_ONE2MANY_HOOK_MANY_FMT "many%d" /* for use with printf(3) */
|
|
|
|
/* Maximum number of supported "many" links */
|
|
#define NG_ONE2MANY_MAX_LINKS 64
|
|
|
|
/* Link number used to indicate the "one" hook */
|
|
#define NG_ONE2MANY_ONE_LINKNUM (-1)
|
|
|
|
/* Algorithms for outgoing packet distribution (XXX only one so far) */
|
|
#define NG_ONE2MANY_XMIT_ROUNDROBIN 1 /* round-robin delivery */
|
|
#define NG_ONE2MANY_XMIT_ALL 2 /* send packets to all many hooks */
|
|
#define NG_ONE2MANY_XMIT_FAILOVER 3 /* send packets to first active "many" */
|
|
|
|
/* Algorithms for detecting link failure (XXX only one so far) */
|
|
#define NG_ONE2MANY_FAIL_MANUAL 1 /* use enabledLinks[] array */
|
|
#define NG_ONE2MANY_FAIL_NOTIFY 2 /* listen to flow control msgs */
|
|
|
|
/* Node configuration structure */
|
|
struct ng_one2many_config {
|
|
u_int32_t xmitAlg; /* how to distribute packets */
|
|
u_int32_t failAlg; /* how to detect link failure */
|
|
u_char enabledLinks[NG_ONE2MANY_MAX_LINKS];
|
|
};
|
|
|
|
/* Keep this in sync with the above structure definition */
|
|
#define NG_ONE2MANY_CONFIG_TYPE_INFO(atype) { \
|
|
{ "xmitAlg", &ng_parse_uint32_type }, \
|
|
{ "failAlg", &ng_parse_uint32_type }, \
|
|
{ "enabledLinks", (atype) }, \
|
|
{ NULL } \
|
|
}
|
|
|
|
/* Statistics structure (one for each link) */
|
|
struct ng_one2many_link_stats {
|
|
u_int64_t recvOctets; /* total octets rec'd on link */
|
|
u_int64_t recvPackets; /* total pkts rec'd on link */
|
|
u_int64_t xmitOctets; /* total octets xmit'd on link */
|
|
u_int64_t xmitPackets; /* total pkts xmit'd on link */
|
|
u_int64_t memoryFailures; /* times couldn't get mem or mbuf */
|
|
};
|
|
|
|
/* Keep this in sync with the above structure definition */
|
|
#define NG_ONE2MANY_LINK_STATS_TYPE_INFO { \
|
|
{ "recvOctets", &ng_parse_uint64_type }, \
|
|
{ "recvPackets", &ng_parse_uint64_type }, \
|
|
{ "xmitOctets", &ng_parse_uint64_type }, \
|
|
{ "xmitPackets", &ng_parse_uint64_type }, \
|
|
{ "memoryFailures", &ng_parse_uint64_type }, \
|
|
{ NULL } \
|
|
}
|
|
|
|
/* Netgraph control messages */
|
|
enum {
|
|
NGM_ONE2MANY_SET_CONFIG, /* set configuration */
|
|
NGM_ONE2MANY_GET_CONFIG, /* get configuration */
|
|
NGM_ONE2MANY_GET_STATS, /* get link stats */
|
|
NGM_ONE2MANY_CLR_STATS, /* clear link stats */
|
|
NGM_ONE2MANY_GETCLR_STATS, /* atomically get & clear link stats */
|
|
};
|
|
|
|
#endif /* _NETGRAPH_NG_ONE2MANY_H_ */
|