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Annotation of XNU/bsd/netiso/cons_pcb.h, revision 1.1

1.1     ! root        1: /*
        !             2:  * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
        !             3:  *
        !             4:  * @APPLE_LICENSE_HEADER_START@
        !             5:  * 
        !             6:  * The contents of this file constitute Original Code as defined in and
        !             7:  * are subject to the Apple Public Source License Version 1.1 (the
        !             8:  * "License").  You may not use this file except in compliance with the
        !             9:  * License.  Please obtain a copy of the License at
        !            10:  * http://www.apple.com/publicsource and read it before using this file.
        !            11:  * 
        !            12:  * This Original Code and all software distributed under the License are
        !            13:  * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
        !            14:  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
        !            15:  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
        !            16:  * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT.  Please see the
        !            17:  * License for the specific language governing rights and limitations
        !            18:  * under the License.
        !            19:  * 
        !            20:  * @APPLE_LICENSE_HEADER_END@
        !            21:  */
        !            22: /*-
        !            23:  * Copyright (c) 1991, 1993
        !            24:  *     The Regents of the University of California.  All rights reserved.
        !            25:  *
        !            26:  * Redistribution and use in source and binary forms, with or without
        !            27:  * modification, are permitted provided that the following conditions
        !            28:  * are met:
        !            29:  * 1. Redistributions of source code must retain the above copyright
        !            30:  *    notice, this list of conditions and the following disclaimer.
        !            31:  * 2. Redistributions in binary form must reproduce the above copyright
        !            32:  *    notice, this list of conditions and the following disclaimer in the
        !            33:  *    documentation and/or other materials provided with the distribution.
        !            34:  * 3. All advertising materials mentioning features or use of this software
        !            35:  *    must display the following acknowledgement:
        !            36:  *     This product includes software developed by the University of
        !            37:  *     California, Berkeley and its contributors.
        !            38:  * 4. Neither the name of the University nor the names of its contributors
        !            39:  *    may be used to endorse or promote products derived from this software
        !            40:  *    without specific prior written permission.
        !            41:  *
        !            42:  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
        !            43:  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
        !            44:  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
        !            45:  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
        !            46:  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
        !            47:  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
        !            48:  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
        !            49:  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
        !            50:  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
        !            51:  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
        !            52:  * SUCH DAMAGE.
        !            53:  *
        !            54:  *     @(#)cons_pcb.h  8.1 (Berkeley) 6/10/93
        !            55:  */
        !            56: 
        !            57: /***********************************************************
        !            58:                Copyright IBM Corporation 1987
        !            59: 
        !            60:                       All Rights Reserved
        !            61: 
        !            62: Permission to use, copy, modify, and distribute this software and its 
        !            63: documentation for any purpose and without fee is hereby granted, 
        !            64: provided that the above copyright notice appear in all copies and that
        !            65: both that copyright notice and this permission notice appear in 
        !            66: supporting documentation, and that the name of IBM not be
        !            67: used in advertising or publicity pertaining to distribution of the
        !            68: software without specific, written prior permission.  
        !            69: 
        !            70: IBM DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING
        !            71: ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL
        !            72: IBM BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR
        !            73: ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
        !            74: WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
        !            75: ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
        !            76: SOFTWARE.
        !            77: 
        !            78: ******************************************************************/
        !            79: 
        !            80: /*
        !            81:  * ARGO Project, Computer Sciences Dept., University of Wisconsin - Madison
        !            82:  */
        !            83: 
        !            84: /*
        !            85:  * protocol control block for the connection oriented network service
        !            86:  */
        !            87: 
        !            88: /*
        !            89:  * legit port #s for cons "transport" are 0..23 for su users only, and
        !            90:  * 1024..1099 for public users
        !            91:  */
        !            92: #define X25_SBSIZE     512
        !            93: #define        X25_PORT_RESERVED 24
        !            94: #define        X25_PORT_USERMAX 1099
        !            95: #define X25_FACIL_LEN_MAX  109
        !            96: #define X25_PARTIAL_PKT_LEN_MAX (MLEN - sizeof(struct cons_pcb))
        !            97: 
        !            98: #ifndef ARGO_DEBUG
        !            99: #define X25_TTL 600 /* 5 min */
        !           100: #else /* ARGO_DEBUG */
        !           101: #define X25_TTL 120 /* 1 min */
        !           102: #endif /* ARGO_DEBUG */
        !           103: 
        !           104: struct cons_pcb {
        !           105:        struct isopcb   _co_isopcb;
        !           106: #define co_next        _co_isopcb.isop_next
        !           107: /* prev used for netstat only */
        !           108: #define co_prev        _co_isopcb.isop_prev
        !           109: #define co_head        _co_isopcb.isop_head
        !           110: #define co_laddr _co_isopcb.isop_laddr
        !           111: #define co_faddr _co_isopcb.isop_faddr
        !           112: #define co_lport _co_isopcb.isop_laddr.siso_tsuffix
        !           113: #define co_fport _co_isopcb.isop_faddr.siso_tsuffix
        !           114: #define co_route _co_isopcb.isop_route
        !           115: #define co_socket _co_isopcb.isop_socket
        !           116: #define        co_chanmask _co_isopcb.isop_chanmask
        !           117: #define        co_negchanmask _co_isopcb.isop_negchanmask
        !           118: #define        co_x25crud _co_isopcb.isop_x25crud
        !           119: #define        co_x25crud_len _co_isopcb.isop_x25crud_len
        !           120:        u_short                 co_state; 
        !           121:        u_char                  co_flags; 
        !           122:        u_short                 co_ttl; /* time to live timer */
        !           123:        u_short                 co_init_ttl; /* initial value of ttl  */
        !           124:        int                     co_channel; /* logical channel */
        !           125:        struct ifnet *  co_ifp; /* interface */
        !           126:        struct protosw *co_proto; 
        !           127: 
        !           128:        struct ifqueue  co_pending; /* queue data to send when connection
        !           129:                                                completes*/
        !           130: #define MAX_DTE_LEN 0x7 /* 17 bcd digits */
        !           131:        struct dte_addr co_peer_dte;
        !           132:        struct  cons_pcb *co_myself; /* DEBUGGING AID */
        !           133: };
        !           134: 
        !           135: /*
        !           136:  * X.25 Packet types 
        !           137:  */
        !           138: #define XPKT_DATA              1
        !           139: #define XPKT_INTERRUPT 2
        !           140: #define XPKT_FLOWCONTROL 3 /* not delivered? */
        !           141: 
        !           142: /*
        !           143:  * pcb xtates
        !           144:  */
        !           145: 
        !           146: #define        CLOSED          0x0
        !           147: #define        LISTENING       0x1
        !           148: #define        CLOSING         0x2
        !           149: /* USABLE STATES MUST BE LAST */
        !           150: #define        CONNECTING      0x3
        !           151: #define        ACKWAIT         0x4
        !           152: #define        OPEN            0x5
        !           153: #define MIN_USABLE_STATE CONNECTING
        !           154: 
        !           155: #define        cons_NSTATES            0x6
        !           156: 
        !           157: 
        !           158: /* type */
        !           159: #define CONSF_OCRE     0x40 /* created on OUTPUT */
        !           160: #define CONSF_ICRE     0x20 /* created on INPUT */
        !           161: #define CONSF_unused   0x10 /* not used */
        !           162: #define CONSF_unused2  0x08 /* not used */
        !           163: #define CONSF_DGM              0x04 /* for dgm use only */
        !           164: #define CONSF_XTS              0x02 /* for cons-as-transport-service */
        !           165: #define CONSF_LOOPBACK 0x01 /* loopback was on when connection commenced */
        !           166: 
        !           167: #define X_NOCHANNEL 0x80
        !           168: 
        !           169: 
        !           170: struct cons_stat {
        !           171:        u_int co_intr;  /* input from eicon board */
        !           172:        u_int co_restart; /* ecn_restart() request issued to board */
        !           173:        u_int co_slowtimo; /* times slowtimo called */
        !           174:        u_int co_timedout; /* connections closed by slowtimo */
        !           175:        u_int co_ack; /* ECN_ACK indication came from eicon board */
        !           176:        u_int co_receive; /* ECN_RECEIVE indication came from eicon board */
        !           177:        u_int co_send; /* ECN_SEND request issued to board */
        !           178:        u_int co_reset_in; /* ECN_RESET indication came from eicon board */
        !           179:        u_int co_reset_out; /* ECN_RESET issued to the eicon board */
        !           180:        u_int co_clear_in; /* ECN_CLEAR indication came from eicon board */
        !           181:        u_int co_clear_out; /* ECN_CLEAR request issued to board */
        !           182:        u_int co_refuse; /* ECN_REFUSE indication came from eicon board */
        !           183:        u_int co_accept; /* ECN_ACCEPT indication came from eicon board */
        !           184:        u_int co_connect; /* ECN_CONNECT indication came from eicon board */
        !           185:        u_int co_call; /* ECN_CALL request issued to board */
        !           186:        u_int co_Rdrops; /* bad pkt came from ll */
        !           187:        u_int co_Xdrops; /* can't keep up */
        !           188: 
        !           189:        u_int   co_intrpt_pkts_in; /* interrupt packets in */
        !           190:        u_int co_avg_qlen;
        !           191:        u_int co_avg_qdrop;
        !           192:        u_int co_active;
        !           193: 
        !           194:        u_int co_noresources;
        !           195:        u_int co_parse_facil_err;
        !           196:        u_int co_addr_proto_consist_err;
        !           197:        u_int co_no_copcb;
        !           198: } cons_stat;
        !           199: 
        !           200: u_char x25_error_stats[CONL_ERROR_MAX + 1];
        !           201: 
        !           202: struct ifqueue consintrq; 
        !           203: 
        !           204: /* reasons for clear are in a data mbuf chained to a clear ecn_request */
        !           205: struct e_clear_data                            {
        !           206:        u_char ecd_cause;
        !           207:        u_char ecd_diagnostic;
        !           208: };
        !           209: 
        !           210: #ifdef KERNEL
        !           211: #define IncStat(XYZ) cons_stat.XYZ++
        !           212: #endif /* KERNEL */
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