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- /*
- * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
- *
- * @APPLE_LICENSE_HEADER_START@
- *
- * The contents of this file constitute Original Code as defined in and
- * are subject to the Apple Public Source License Version 1.1 (the
- * "License"). You may not use this file except in compliance with the
- * License. Please obtain a copy of the License at
- * http://www.apple.com/publicsource and read it before using this file.
- *
- * This Original Code and all software distributed under the License are
- * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
- * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
- * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT. Please see the
- * License for the specific language governing rights and limitations
- * under the License.
- *
- * @APPLE_LICENSE_HEADER_END@
- */
- /*
- * This include file defines the RTMP table and ZIP table
- * for the AppleTalk AIX router
- *
- *
- * 0.01 03/16/94 LD Creation
- * 0.10 08/19/94 LD merged
- *
- */
-
- #ifndef _NETAT_ROUTING_TABLES_H_
- #define _NETAT_ROUTING_TABLES_H_
-
- /* RTMP table entry state bitmap (EntryState) values */
-
- #define RTE_STATE_UNUSED 0 /* this entry is not in used */
- #define RTE_STATE_BAD 2 /* The route is almost ready to be removed */
- #define RTE_STATE_SUSPECT 4 /* didn't received an update for route */
- #define RTE_STATE_GOOD 8 /* this route is 100% valid */
- #define RTE_STATE_ZKNOWN 16 /* we know the zones for this entry */
- #define RTE_STATE_UPDATED 32 /* set when updated from received rtmp table */
- #define RTE_STATE_BKUP 64 /* for future use : AURP */
- #define RTE_STATE_PERMANENT 128 /* This is a directly attached route */
-
- #define PORT_ONLINE 32 /* router port in forwarding state */
- #define PORT_SEEDING 31 /* router port seeding */
- #define PORT_ACTIVATING 16 /* router port waiting for net infos */
- #define PORT_ERR_NOZONE 6 /* router no zones for non seed port*/
- #define PORT_ERR_BADRTMP 5 /* router problem bad rtmp version*/
- #define PORT_ERR_STARTUP 4 /* router problem cable in start range*/
- #define PORT_ERR_CABLER 3 /* router problem bad cable range*/
- #define PORT_ERR_SEED 2 /* router startup seeding problem */
- #define PORT_ONERROR 1 /* router port with generic problem*/
- #define PORT_OFFLINE 0 /* router port disabled/not ready */
-
- #define ZT_MAX 1024 /* Don't allow more zones than that */
- #define ZT_MIN 32 /* Minimum for a good behaviour*/
- #define ZT_DEFAULT 512 /* Minimum for a good behaviour*/
- #define RT_MAX 4096 /* Don't allow more entries than that */
- #define RT_MIN 128 /* Minimum for a good behaviour*/
- #define RT_DEFAULT 1024 /* Minimum for a good behaviour*/
- #define ZT_BYTES (ZT_MAX/8) /* Bytes in Zone Bitmap */
- #define ZT_MAXEDOUT ZT_MAX+1 /* reached the entry limit.. */
- #define RT_MIX_DEFAULT 2000 /* default for nbr of ppsec */
-
-
- #define NOTIFY_N_DIST 31 /* Notify Neighbor distance (when shutdown or so) */
-
- /* Useful macros to access the RTMP tuple fields */
-
- #define TUPLENET(x) NET_VALUE(((at_rtmp_tuple *)(x))->at_rtmp_net)
- #define TUPLEDIST(x) ((((at_rtmp_tuple *)(x))->at_rtmp_data) & RTMP_DISTANCE)
- #define TUPLERANGE(x) ((((at_rtmp_tuple *)(x))->at_rtmp_data) & RTMP_RANGE_FLAG)
-
- #define CableStart ifID->ifThisCableStart
- #define CableStop ifID->ifThisCableEnd
-
- #define RTMP_IDLENGTH 4 /* RTMP packet Node header length */
-
-
- #define RTMP_VERSION_NUMBER 0x82 /* V2 only version of RTMP supported */
-
- #define ERTR_SEED_CONFLICT 0x101 /* Conflict between port information and net
- * value received for the port (fatal for Rtr)
- */
- #define ERTR_CABLE_CONFLICT 0x102 /* Conflict between port information and net
- * information received in a RTMP packet
- */
-
- #define ERTR_RTMP_BAD_VERSION 0x103 /* We received a non phase-II RTMP packet
- * that's bad... We can't deal with it
- */
-
- #define ERTR_CABLE_STARTUP 0x104 /* the cable range we're on happen to
- * be in the startup range. Shouldn't
- */
-
- #define ERTR_CABLE_NOZONE 0x105 /* We haven't found any zones for that port
- * after all the timeout expired
- */
-
-
- /* RTMP table entry */
-
- typedef struct rt_entry {
-
- struct rt_entry *left; /* btree left pointer */
- struct rt_entry *right; /* btree right pointer */
-
- at_net_al NetStop; /* Last net # in the range, or network # if
- non extended network */
- at_net_al NetStart; /* Starting network number in the range, 0
- non extended network */
- at_net_al NextIRNet; /* Network number of next Internet Router */
- at_node NextIRNode; /* Node ID of next Router */
- u_char ZoneBitMap[ZT_BYTES]; /* One bit per Zone defined for this entry */
- u_char NetDist; /* Distance in hops of the destination net */
- u_char NetPort; /* Physical port number to forward to */
- u_char EntryState; /* State of the entry bitmap field */
- u_char RTMPFlag;
- u_char AURPFlag;
-
- } RT_entry;
-
-
- /* ZIP Table entry */
-
- typedef struct {
-
- u_short ZoneCount; /* Count of reference to zone entry */
- at_nvestr_t Zone; /* zone name as a Network Visible Entity */
-
- } ZT_entry;
-
- /* for zone retrieval to user space only */
- typedef struct {
- unsigned short entryno; /* zone table entry number (1st = 0) */
- ZT_entry zt; /* the zone table entry */
- } ZT_entryno;
-
- #ifdef KERNEL
-
- /* Macros for Routing table B-tree easy access */
-
- #define RT_DELETE(NetStop, NetStart) {\
- RT_entry *found; \
- if ((found = rt_bdelete(NetStop, NetStart))) { \
- memset(found, '\0', sizeof(RT_entry)); \
- found->right = RT_table_freelist; \
- RT_table_freelist = found; \
- } \
- }
-
- /* Set/Reset and test the All zones known bit in for the entry field */
-
- #define RT_ALL_ZONES_KNOWN(entry) ((entry)->EntryState & RTE_STATE_ZKNOWN)
- #define RT_SET_ZONE_KNOWN(entry) ((entry)->EntryState |= RTE_STATE_ZKNOWN)
- #define RT_CLR_ZONE_KNOWN(entry) ((entry)->EntryState ^= RTE_STATE_ZKNOWN)
-
- /*
- * check if a zone number is in a given zone map
- */
- #define ZT_ISIN_ZMAP(znum, zmap) ((zmap)[(znum-1) >> 3] & 0x80 >> (znum-1) % 8)
-
- /* remove a zone from the zone bitmap, and check if the zone
- * is still in use by someone else.
- */
-
- #define ZT_CLR_ZMAP(num, zmap) { \
- if ((zmap)[(num-1) >> 3] & 0x80 >> (num-1) % 8) { \
- (zmap)[(num-1) >> 3] ^= 0x80 >> (num-1) % 8; \
- ZT_table[(num-1)].ZoneCount-- ; \
- } \
- }
-
- /* set a bit in an entry bit map */
-
- #define ZT_SET_ZMAP(num, zmap) { \
- if (!zmap[(num-1) >> 3] & 0x80 >> (num-1) % 8) { \
- zmap[(num-1) >> 3] |= 0x80 >> (num-1) % 8; \
- ZT_table[(num-1)].ZoneCount++ ; \
- } \
- }
-
- extern int regDefaultZone(at_ifaddr_t *);
- extern int zonename_equal(at_nvestr_t *, at_nvestr_t *);
-
- extern RT_entry *RT_table_freelist;
- extern RT_entry RT_table_start;
- extern RT_entry *RT_table;
- extern RT_entry *rt_binsert();
- extern RT_entry *rt_insert();
- extern RT_entry *rt_bdelete();
- extern RT_entry *rt_blookup(int);
- extern RT_entry *rt_getNextRoute(int);
-
- extern ZT_entry *ZT_table;
- extern short RT_maxentry;
- extern short ZT_maxentry;
-
- extern volatile int RouterMix;
-
- extern int zt_add_zone(char *, short);
- extern int zt_add_zonename(at_nvestr_t *);
- extern int zt_ent_zindex(u_char *);
- extern ZT_entryno *zt_getNextZone(int);
- extern void zt_remove_zones(u_char *);
- extern void zt_set_zmap(u_short, char *);
- extern void rtmp_router_input();
-
- #endif /* KERNEL */
-
- #endif /* _NETAT_ROUTING_TABLES_H_ */
-