sap.h revision 21673
1/* 2 * Copyright (c) 1995 John Hay. All rights reserved. 3 * 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions 6 * are met: 7 * 1. Redistributions of source code must retain the above copyright 8 * notice, this list of conditions and the following disclaimer. 9 * 2. Redistributions in binary form must reproduce the above copyright 10 * notice, this list of conditions and the following disclaimer in the 11 * documentation and/or other materials provided with the distribution. 12 * 3. All advertising materials mentioning features or use of this software 13 * must display the following acknowledgement: 14 * This product includes software developed by John Hay. 15 * 4. Neither the name of the author nor the names of any co-contributors 16 * may be used to endorse or promote products derived from this software 17 * without specific prior written permission. 18 * 19 * THIS SOFTWARE IS PROVIDED BY John Hay AND CONTRIBUTORS ``AS IS'' AND 20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 22 * ARE DISCLAIMED. IN NO EVENT SHALL John Hay OR CONTRIBUTORS BE LIABLE 23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 29 * SUCH DAMAGE. 30 * 31 * $FreeBSD: head/usr.sbin/IPXrouted/sap.h 21673 1997-01-14 07:20:47Z jkh $ 32 */ 33#ifndef _SAP_H_ 34#define _SAP_H_ 35 36#define IPXPROTO_SAP IPXPROTO_PXP 37 38#define SAP_REQ 1 39#define SAP_RESP 2 40#define SAP_REQ_NEAR 3 41#define SAP_RESP_NEAR 4 42 43#define SAPCMD_MAX 5 44#ifdef SAPCMDS 45char *sapcmds[SAPCMD_MAX] = 46 { "#0", "REQUEST", "RESPONSE", "REQ NEAREST", "RESP NEAREST"}; 47#endif 48 49#define MAXSAPENTRIES 7 50#define SAP_WILDCARD 0xFFFF 51#define SERVNAMELEN 48 52typedef struct sap_info { 53 u_short ServType; 54 char ServName[SERVNAMELEN]; 55 struct ipx_addr ipx; 56 u_short hops; 57 }sap_info; 58 59typedef struct sap_packet { 60 u_short sap_cmd; 61 sap_info sap[0]; /* Variable length. */ 62 }sap_packet; 63 64typedef struct sap_entry { 65 struct sap_entry *forw; 66 struct sap_entry *back; 67 struct sap_entry *clone; 68 struct interface *ifp; 69 struct sap_info sap; 70 struct sockaddr source; 71 int hash; 72 int state; 73 int timer; 74 int metric; 75 }sap_entry; 76 77#define SAPHASHSIZ 32 /* Should be a power of 2 */ 78#define SAPHASHMASK (SAPHASHSIZ-1) 79typedef struct sap_hash { 80 struct sap_entry *forw; 81 struct sap_entry *back; 82 }sap_hash; 83 84extern sap_hash sap_head[SAPHASHSIZ]; 85 86extern struct sap_packet *sap_msg; 87 88void sapinit(void); 89void sap_input(struct sockaddr *from, int size); 90void sapsndmsg(struct sockaddr *dst, int flags, struct interface *ifp); 91void sap_supply_toall(void); 92void sap_supply(struct sockaddr *dst, 93 int flags, 94 struct interface *ifp, 95 int ServType); 96 97struct sap_entry *sap_lookup(u_short ServType, char *ServName); 98struct sap_entry *sap_nearestserver(ushort ServType, struct interface *ifp); 99void sap_add(struct sap_info *si, struct sockaddr *from); 100void sap_change(struct sap_entry *sap, 101 struct sap_info *si, 102 struct sockaddr *from); 103void sap_add_clone(struct sap_entry *sap, 104 struct sap_info *clone, 105 struct sockaddr *from); 106void sap_delete(struct sap_entry *sap); 107 108#endif /*_SAP_H_*/ 109 110