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109 lines
3.5 KiB
C
109 lines
3.5 KiB
C
/*
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* Copyright (c) 1995 John Hay. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by John Hay.
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* 4. Neither the name of the author nor the names of any co-contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY John Hay AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL John Hay OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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#ifndef _SAP_H_
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#define _SAP_H_
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#define SAP_REQ 1
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#define SAP_RESP 2
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#define SAP_REQ_NEAR 3
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#define SAP_RESP_NEAR 4
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#define SAPCMD_MAX 5
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#ifdef SAPCMDS
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char *sapcmds[SAPCMD_MAX] =
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{ "#0", "REQUEST", "RESPONSE", "REQ NEAREST", "RESP NEAREST"};
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#endif
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#define MAXSAPENTRIES 7
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#define SAP_WILDCARD 0xFFFF
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#define SERVNAMELEN 48
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typedef struct sap_info {
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u_short ServType;
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char ServName[SERVNAMELEN];
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struct ipx_addr ipx;
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u_short hops;
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}sap_info;
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typedef struct sap_packet {
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u_short sap_cmd;
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sap_info sap[0]; /* Variable length. */
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}sap_packet;
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typedef struct sap_entry {
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struct sap_entry *forw;
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struct sap_entry *back;
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struct sap_entry *clone;
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struct interface *ifp;
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struct sap_info sap;
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struct sockaddr source;
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int hash;
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int state;
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int timer;
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}sap_entry;
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#define SAPHASHSIZ 256 /* Should be a power of 2 */
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#define SAPHASHMASK (SAPHASHSIZ-1)
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typedef struct sap_hash {
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struct sap_entry *forw;
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struct sap_entry *back;
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}sap_hash;
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extern sap_hash sap_head[SAPHASHSIZ];
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extern struct sap_packet *sap_msg;
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void sapinit(void);
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void sap_input(struct sockaddr *from, int size);
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void sapsndmsg(struct sockaddr *dst, int flags, struct interface *ifp,
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int changesonly);
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void sap_supply_toall(int changesonly);
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void sap_supply(struct sockaddr *dst,
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int flags,
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struct interface *ifp,
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int ServType,
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int changesonly);
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struct sap_entry *sap_lookup(u_short ServType, char *ServName);
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struct sap_entry *sap_nearestserver(ushort ServType, struct interface *ifp);
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void sap_add(struct sap_info *si, struct sockaddr *from);
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void sap_change(struct sap_entry *sap,
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struct sap_info *si,
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struct sockaddr *from);
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void sap_add_clone(struct sap_entry *sap,
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struct sap_info *clone,
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struct sockaddr *from);
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void sap_delete(struct sap_entry *sap);
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#endif /*_SAP_H_*/
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