/* * 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 */ /* 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_ */