bsd/netat/aurp.h

   1 /*
   2  * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
   3  *
   4  * @APPLE_LICENSE_OSREFERENCE_HEADER_START@
   5  *
   6  * This file contains Original Code and/or Modifications of Original Code
   7  * as defined in and that are subject to the Apple Public Source License
   8  * Version 2.0 (the 'License'). You may not use this file except in
   9  * compliance with the License.  The rights granted to you under the
  10  * License may not be used to create, or enable the creation or
  11  * redistribution of, unlawful or unlicensed copies of an Apple operating
  12  * system, or to circumvent, violate, or enable the circumvention or
  13  * violation of, any terms of an Apple operating system software license
  14  * agreement.
  15  *
  16  * Please obtain a copy of the License at
  17  * http://www.opensource.apple.com/apsl/ and read it before using this
  18  * file.
  19  *
  20  * The Original Code and all software distributed under the License are
  21  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  22  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  23  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  24  * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
  25  * Please see the License for the specific language governing rights and
  26  * limitations under the License.
  27  *
  28  * @APPLE_LICENSE_OSREFERENCE_HEADER_END@
  29  */
  30 /*
  31  *      Copyright (c) 1996 Apple Computer, Inc.
  32  *
  33  *              Created April 23, 1996, by Justin C. Walker
  34  *
  35  *      File: aurp.h
  36  */
  37
  38 #ifdef AURP_SUPPORT
  39
  40 #ifndef _NETAT_AURP_H_
  41 #define _NETAT_AURP_H_
  42 #include <sys/appleapiopts.h>
  43
  44 #ifdef __APPLE_API_OBSOLETE
  45
  46 /*
  47  * AURP device ioctl (I_STR) 'subcommands'
  48  */
  49 #define AUC_CFGTNL      0       /* Configure Tunnels */
  50 #define AUC_SHTDOWN     1       /* Shutdown AURP */
  51 #define AUC_EXPNET      2       /* Configure exported networks */
  52 #define AUC_HIDENET     3       /* Configure hidden netowrks */
  53 #define AUC_UDPPORT     4       /* UPD Port number */
  54 #define AUC_NETLIST     5       /* List of remote endpoints */
  55 #define AUC_TIMER       6       /* Configured update interval timer */
  56 #define AUC_ADDNET      7       /* Add remote endpoints */
  57 #define AUC_ACCEPTALL   8       /* Accept all nets */
  58 #define AUC_MAX         9       /* Maximun numbers of access nets */
  59
  60 /* Default AURP-over-UDP port */
  61 #define AURP_SOCKNUM      387
  62 #define AURP_MAXNETACCESS 64
  63
  64 #ifdef KERNEL_PRIVATE
  65
  66 #define AURPCODE_REG                   0
  67 #define AURPCODE_RTMPPKT               1
  68 #define AURPCODE_DATAPKT               2
  69 #define AURPCODE_AURPPROTO             3
  70 #define AURPCODE_DEBUGINFO             10
  71 #ifdef NOT_USED
  72 #define AURPCODE_RTINFO 11 /* was used to set up pointers to the
  73                               routing table, the zone table, and
  74                               several functions */
  75 #endif
  76 #define AURPCODE_RTUPDATE              12
  77
  78 #define AURPSTATE_Unconnected          0
  79 #define AURPSTATE_Connected            1
  80 #define AURPSTATE_WaitingForOpenRsp    2
  81 #define AURPSTATE_WaitingForRIRsp      3
  82 #define AURPSTATE_WaitingForTickleAck  4
  83 #define AURPSTATE_WaitingForRIAck1     5
  84 #define AURPSTATE_WaitingForRIAck2     6
  85 #define AURPSTATE_WaitingForRIAck3     7
  86
  87 #define AURPCMD_RIReq                  1
  88 #define AURPCMD_RIRsp                  2
  89 #define AURPCMD_RIAck                  3
  90 #define AURPCMD_RIUpd                  4
  91 #define AURPCMD_RDReq                  5
  92 #define AURPCMD_ZReq                   6
  93 #define AURPCMD_ZRsp                   7
  94 #define AURPCMD_OpenReq                8
  95 #define AURPCMD_OpenRsp                9
  96 #define AURPCMD_Tickle                 14
  97 #define AURPCMD_TickleAck              15
  98
  99 #define AURPSUBCODE_ZoneInfo1          1
 100 #define AURPSUBCODE_ZoneInfo2          2
 101 #define AURPSUBCODE_GetZoneNets        3
 102 #define AURPSUBCODE_GetDomainZoneList  4
 103
 104 #define AURPEV_Null                    0
 105 #define AURPEV_NetAdded                1
 106 #define AURPEV_NetDeleted              2
 107 #define AURPEV_NetRouteChange          3
 108 #define AURPEV_NetDistChange           4
 109 #define AURPEV_NetZoneChange           5
 110
 111 #define AURP_Version                   1
 112 #define AURP_ProbeRetryInterval        300
 113 #define AURP_MaxTickleRetry            4
 114 #define AURP_TickleRetryInterval       30
 115 #define AURP_MaxRetry                  10
 116 #define AURP_RetryInterval             3
 117 #define AURP_UpdateRate                1
 118 #define AURP_UDType                    0
 119 #define AURP_UDNode                    1
 120 #define AURP_UDSize                    2
 121 #define AURP_FirstSeqNum               1
 122 #define AURP_LastSeqNum                65535
 123 #define AURP_MaxPktSize                1400
 124 #define AURP_MaxNetAccess              64
 125 #define AURP_NetHiden                  0x01
 126
 127 #define AURPERR_NormalConnectionClose  -1
 128 #define AURPERR_RoutingLoopDetected    -2
 129 #define AURPERR_ConnectionOutOfSync    -3
 130 #define AURPERR_OptionNegotiationError -4
 131 #define AURPERR_InvalidVersionNumber   -5
 132 #define AURPERR_InsufficientResources  -6
 133 #define AURPERR_AuthenticationError    -7
 134
 135 #define AURPFLG_NA    0x4000
 136 #define AURPFLG_ND    0x2000
 137 #define AURPFLG_NDC   0x1000
 138 #define AURPFLG_ZC    0x0800
 139 #define AURPFLG_RMA   0x4000
 140 #define AURPFLG_HCRA  0x2000
 141 #define AURPFLG_SZI   0x4000
 142 #define AURPFLG_LAST  0x8000
 143
 144 /*
 145  * AURP state block
 146  */
 147 typedef struct {
 148         unsigned char  get_zi;          /* get zone info flag */
 149         unsigned char  rem_node;        /* node id of a tunnel peer */
 150         unsigned char  tickle_retry;    /* tickle retry count */
 151         unsigned char  rcv_retry;       /* data receiver retry count */
 152         unsigned char  snd_state;       /* data sender state */
 153         unsigned char  rcv_state;       /* data receiver state */
 154         unsigned char  filler[2];
 155         unsigned short rcv_update_rate;
 156         unsigned short snd_next_entry;  /* next entry in RT */
 157         unsigned short rcv_env;
 158         unsigned short snd_sui;
 159         unsigned short rcv_connection_id;   /* data receiver connection id */
 160         unsigned short snd_connection_id;   /* data sender connection id */
 161         unsigned short rcv_sequence_number; /* data receiver sequence number */
 162         unsigned short snd_sequence_number; /* data sender sequence number */
 163         int   rcv_tmo;
 164         int   snd_tmo;
 165         gbuf_t *rsp_m;
 166         gbuf_t *upd_m;
 167 } aurp_state_t;
 168
 169 /*
 170  * AURP protocol header
 171  */
 172 typedef struct {
 173         unsigned short connection_id;
 174         unsigned short sequence_number;
 175         unsigned short command_code;
 176         unsigned short flags;
 177 } aurp_hdr_t;
 178
 179 extern gref_t *aurp_gref;
 180 extern unsigned char dst_addr_cnt;
 181 extern unsigned char net_access_cnt;
 182 extern unsigned char net_export;
 183 extern unsigned short rcv_connection_id;
 184 extern int net_port;
 185 extern int update_tmo;
 186 extern aurp_state_t aurp_state[];
 187 extern unsigned short net_access[];
 188
 189 struct myq
 190 {       struct mbuf *q_head;
 191         struct mbuf *q_tail;
 192         int q_cnt;
 193 };
 194
 195
 196 #include <sys/uio_internal.h>
 197
 198 /*
 199  * Quandry: if we use a single socket, we have to rebind on each call.
 200  * If we use separate sockets per tunnel endpoint, we have to examine
 201  *  each one on wakeup.  What to do; what to do?
 202  */
 203 struct aurp_global_t
 204 {       int src_addr;           /* What's our IP address? */
 205         int udp_port;           /* Local UDP port */
 206         unsigned short net_access[AURP_MAXNETACCESS];
 207         long dst_addr[256];     /* Tunnel 'other ends', passed in from user */
 208         int pid;                /* Who are we? */
 209         struct socket *tunnel;  /* IP socket for all IP endpoints */
 210         int event;              /* Sleep queue anchor */
 211         int event_anchor;       /* Sleep queue anchor */
 212         atlock_t glock;         /* aurp_global lock */
 213         struct uio auio;        /* Dummy uio struct for soreceive() */
 214         /* Statistics */
 215         unsigned int toosmall;  /* size less than domain header, from UDP */
 216         unsigned int no_mbufs;  /* gbuf_to_mbuf failed */
 217         unsigned int no_gbufs;  /* mbuf_to_gbuf failed */
 218         unsigned int shutdown;  /* shutdown flag */
 219         unsigned int running;   /* running flag */
 220 };
 221
 222 #define AE_ATALK        0x01    /* A/talk input event */
 223 #define AE_UDPIP        0x02    /* UDP/IP input event */
 224 #define AE_SHUTDOWN     0x04    /* Shutdown AURP process */
 225
 226 void aurp_wakeup(struct socket *, caddr_t, int);
 227 struct mbuf *at_gbuf_to_mbuf(gbuf_t *);
 228 gbuf_t *at_mbuf_to_gbuf(struct mbuf *, int);
 229 int at_insert(gbuf_t *m, unsigned int type, unsigned int node);
 230 int ddp_AURPfuncx(int code, void *param, unsigned char node);
 231 int AURPinit(void);
 232 int aurpd_start(void);
 233 void atalk_to_ip(gbuf_t *m);
 234 void AURPaccess(void);
 235 void AURPshutdown(void);
 236 void AURPiocack(gref_t *gref, gbuf_t *m);
 237 void AURPiocnak(gref_t *gref, gbuf_t *m, int error);
 238 void AURPsndZReq(aurp_state_t *state);
 239 void AURPsndZRsp(aurp_state_t *state, gbuf_t *dat_m, int flag);
 240 void AURPsndRIUpd(aurp_state_t *state);
 241 void AURPsndRIReq(aurp_state_t *state);
 242 void AURPsndRIAck(aurp_state_t *state, gbuf_t *m, unsigned short flags);
 243 void AURPsndOpenReq(aurp_state_t *state);
 244 void AURPsndRDReq(aurp_state_t *state);
 245 void AURPrcvZReq(aurp_state_t *state, gbuf_t *m);
 246 void AURPrcvZRsp(aurp_state_t *state, gbuf_t *m);
 247 void AURPrcvRIUpd(aurp_state_t *state, gbuf_t *m);
 248 void AURPrcvRIReq(aurp_state_t *state, gbuf_t *m);
 249 void AURPrcvRIAck(aurp_state_t *state, gbuf_t *m);
 250 void AURPrcvRIRsp(aurp_state_t *state, gbuf_t *m);
 251 void AURPrcvOpenReq(aurp_state_t *state, gbuf_t *m);
 252 void AURPrcvOpenRsp(aurp_state_t *state, gbuf_t *m);
 253 void AURPrcvTickle(aurp_state_t *state, gbuf_t *m);
 254 void AURPrcvTickleAck(aurp_state_t *state, gbuf_t *m);
 255 void AURPrcvRDReq(aurp_state_t *state, gbuf_t *m);
 256 void AURPfreemsg(gbuf_t *m);
 257 void AURPrtupdate(RT_entry *entry, unsigned char ev);
 258 void AURPsend(gbuf_t *mdata, int type, int node);
 259 void AURPcleanup(aurp_state_t *state);
 260 void AURPpurgeri(unsigned char node);
 261 int AURPgetri(short next_entry, unsigned char *buf, short *len);
 262 int AURPsetri(unsigned char node, gbuf_t *m);
 263 int AURPupdateri(unsigned char node, gbuf_t *m);
 264
 265 /* AURP header for IP tunneling */
 266 typedef struct aurp_domain
 267 {       char  dst_length;
 268         char  dst_authority;
 269         short dst_distinguisher;
 270         long  dst_address;
 271         char  src_length;
 272         char  src_authority;
 273         short src_distinguisher;
 274         long  src_address;
 275         short version;
 276         short reserved;
 277         short type;
 278 } aurp_domain_t;
 279
 280 /* AURP/domain header constants */
 281 #define AUD_Version     0x1
 282 #define AUD_Atalk       0x2
 283 #define AUD_AURP        0x3
 284
 285 /* IP domain identifier constants */
 286 #define IP_LENGTH               7
 287 #define IP_AUTHORITY            1
 288 #define IP_DISTINGUISHER        0
 289 /* Need this because the )(*&^%$#@ compiler rounds up the size */
 290 #define IP_DOMAINSIZE           22
 291
 292 /****### LD 9/26/97*/
 293 extern struct aurp_global_t aurp_global;
 294 #endif /* KERNEL_PRIVATE */
 295 #endif /* __APPLE_API_OBSOLETE */
 296 #endif /* _NETAT_AURP_H_ */
 297
 298 #endif  /* AURP_SUPPORT */