sap.h revision 11840
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 * $Id: sap.h,v 1.1 1995/10/26 21:28:22 julian Exp $ 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 SAP_WILDCARD 0xFFFF 50#define SERVNAMELEN 48 51typedef struct sap_info { 52 u_short ServType; 53 char ServName[SERVNAMELEN]; 54 struct ipx_addr ipx; 55 u_short hops; 56 }sap_info; 57 58typedef struct sap_packet { 59 u_short sap_cmd; 60 sap_info sap[0]; /* Variable length. */ 61 }sap_packet; 62 63typedef struct sap_entry { 64 struct sap_entry *forw; 65 struct sap_entry *back; 66 struct sap_entry *clone; 67 struct interface *ifp; 68 struct sap_info sap; 69 struct sockaddr source; 70 int hash; 71 int state; 72 int timer; 73 int metric; 74 }sap_entry; 75 76#define SAPHASHSIZ 32 /* Should be a power of 2 */ 77#define SAPHASHMASK (SAPHASHSIZ-1) 78typedef struct sap_hash { 79 struct sap_entry *forw; 80 struct sap_entry *back; 81 }sap_hash; 82 83extern sap_hash sap_head[SAPHASHSIZ]; 84 85extern struct sap_packet *sap_msg; 86 87void sapinit(void); 88void sap_input(struct sockaddr *from, int size); 89void sapsndmsg(struct sockaddr *dst, int flags, struct interface *ifp); 90void sap_supply_toall(void); 91void sap_supply(struct sockaddr *dst, 92 int flags, 93 struct interface *ifp, 94 int ServType); 95 96struct sap_entry *sap_lookup(u_short ServType, char *ServName); 97struct sap_entry *sap_nearestserver(ushort ServType, struct interface *ifp); 98void sap_add(struct sap_info *si, struct sockaddr *from); 99void sap_change(struct sap_entry *sap, 100 struct sap_info *si, 101 struct sockaddr *from); 102void sap_add_clone(struct sap_entry *sap, 103 struct sap_info *clone, 104 struct sockaddr *from); 105void sap_delete(struct sap_entry *sap); 106 107#endif /*_SAP_H_*/ 108 109