1 2 /* 3 * ng_one2many.h 4 * 5 * Copyright (c) 2000 Whistle Communications, Inc. 6 * All rights reserved. 7 * 8 * Subject to the following obligations and disclaimer of warranty, use and 9 * redistribution of this software, in source or object code forms, with or 10 * without modifications are expressly permitted by Whistle Communications; 11 * provided, however, that: 12 * 1. Any and all reproductions of the source or object code must include the 13 * copyright notice above and the following disclaimer of warranties; and 14 * 2. No rights are granted, in any manner or form, to use Whistle 15 * Communications, Inc. trademarks, including the mark "WHISTLE 16 * COMMUNICATIONS" on advertising, endorsements, or otherwise except as 17 * such appears in the above copyright notice or in the software. 18 * 19 * THIS SOFTWARE IS BEING PROVIDED BY WHISTLE COMMUNICATIONS "AS IS", AND 20 * TO THE MAXIMUM EXTENT PERMITTED BY LAW, WHISTLE COMMUNICATIONS MAKES NO 21 * REPRESENTATIONS OR WARRANTIES, EXPRESS OR IMPLIED, REGARDING THIS SOFTWARE, 22 * INCLUDING WITHOUT LIMITATION, ANY AND ALL IMPLIED WARRANTIES OF 23 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT. 24 * WHISTLE COMMUNICATIONS DOES NOT WARRANT, GUARANTEE, OR MAKE ANY 25 * REPRESENTATIONS REGARDING THE USE OF, OR THE RESULTS OF THE USE OF THIS 26 * SOFTWARE IN TERMS OF ITS CORRECTNESS, ACCURACY, RELIABILITY OR OTHERWISE. 27 * IN NO EVENT SHALL WHISTLE COMMUNICATIONS BE LIABLE FOR ANY DAMAGES 28 * RESULTING FROM OR ARISING OUT OF ANY USE OF THIS SOFTWARE, INCLUDING 29 * WITHOUT LIMITATION, ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, 30 * PUNITIVE, OR CONSEQUENTIAL DAMAGES, PROCUREMENT OF SUBSTITUTE GOODS OR 31 * SERVICES, LOSS OF USE, DATA OR PROFITS, HOWEVER CAUSED AND UNDER ANY 32 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 33 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 34 * THIS SOFTWARE, EVEN IF WHISTLE COMMUNICATIONS IS ADVISED OF THE POSSIBILITY 35 * OF SUCH DAMAGE. 36 * 37 * Author: Archie Cobbs <archie@freebsd.org> 38 * 39 * $FreeBSD$ 40 */ 41 42 #ifndef _NETGRAPH_NG_ONE2MANY_H_ 43 #define _NETGRAPH_NG_ONE2MANY_H_ 44 45 /* Node type name and magic cookie */ 46 #define NG_ONE2MANY_NODE_TYPE "one2many" 47 #define NGM_ONE2MANY_COOKIE 971111383 48 49 /* Hook names */ 50 #define NG_ONE2MANY_HOOK_ONE "one" 51 #define NG_ONE2MANY_HOOK_MANY_PREFIX "many" /* append decimal integer */ 52 #define NG_ONE2MANY_HOOK_MANY_FMT "many%d" /* for use with printf(3) */ 53 54 /* Maximum number of supported "many" links */ 55 #define NG_ONE2MANY_MAX_LINKS 64 56 57 /* Link number used to indicate the "one" hook */ 58 #define NG_ONE2MANY_ONE_LINKNUM (-1) 59 60 /* Algorithms for outgoing packet distribution (XXX only one so far) */ 61 #define NG_ONE2MANY_XMIT_ROUNDROBIN 1 /* round-robin delivery */ 62 #define NG_ONE2MANY_XMIT_ALL 2 /* send packets to all many hooks */ 63 64 /* Algorithms for detecting link failure (XXX only one so far) */ 65 #define NG_ONE2MANY_FAIL_MANUAL 1 /* use enabledLinks[] array */ 66 67 /* Node configuration structure */ 68 struct ng_one2many_config { 69 u_int32_t xmitAlg; /* how to distribute packets */ 70 u_int32_t failAlg; /* how to detect link failure */ 71 u_char enabledLinks[NG_ONE2MANY_MAX_LINKS]; 72 }; 73 74 /* Keep this in sync with the above structure definition */ 75 #define NG_ONE2MANY_CONFIG_TYPE_INFO(atype) { \ 76 { "xmitAlg", &ng_parse_uint32_type }, \ 77 { "failAlg", &ng_parse_uint32_type }, \ 78 { "enabledLinks", (atype) }, \ 79 { NULL } \ 80 } 81 82 /* Statistics structure (one for each link) */ 83 struct ng_one2many_link_stats { 84 u_int64_t recvOctets; /* total octets rec'd on link */ 85 u_int64_t recvPackets; /* total pkts rec'd on link */ 86 u_int64_t xmitOctets; /* total octets xmit'd on link */ 87 u_int64_t xmitPackets; /* total pkts xmit'd on link */ 88 u_int64_t memoryFailures; /* times couldn't get mem or mbuf */ 89 }; 90 91 /* Keep this in sync with the above structure definition */ 92 #define NG_ONE2MANY_LINK_STATS_TYPE_INFO { \ 93 { "recvOctets", &ng_parse_uint64_type }, \ 94 { "recvPackets", &ng_parse_uint64_type }, \ 95 { "xmitOctets", &ng_parse_uint64_type }, \ 96 { "xmitPackets", &ng_parse_uint64_type }, \ 97 { "memoryFailures", &ng_parse_uint64_type }, \ 98 { NULL } \ 99 } 100 101 /* Netgraph control messages */ 102 enum { 103 NGM_ONE2MANY_SET_CONFIG, /* set configuration */ 104 NGM_ONE2MANY_GET_CONFIG, /* get configuration */ 105 NGM_ONE2MANY_GET_STATS, /* get link stats */ 106 NGM_ONE2MANY_CLR_STATS, /* clear link stats */ 107 NGM_ONE2MANY_GETCLR_STATS, /* atomically get & clear link stats */ 108 }; 109 110 #endif /* _NETGRAPH_NG_ONE2MANY_H_ */ 111 112