The Design and Implementation of the FreeBSD Operating System, Second Edition
Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)


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FreeBSD/Linux Kernel Cross Reference
sys/netipx/spx_var.h

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    1 /*-
    2  * Copyright (c) 1984, 1985, 1986, 1987, 1993
    3  *      The Regents of the University of California.  All rights reserved.
    4  *
    5  * Redistribution and use in source and binary forms, with or without
    6  * modification, are permitted provided that the following conditions
    7  * are met:
    8  * 1. Redistributions of source code must retain the above copyright
    9  *    notice, this list of conditions and the following disclaimer.
   10  * 2. Redistributions in binary form must reproduce the above copyright
   11  *    notice, this list of conditions and the following disclaimer in the
   12  *    documentation and/or other materials provided with the distribution.
   13  * 4. Neither the name of the University nor the names of its contributors
   14  *    may be used to endorse or promote products derived from this software
   15  *    without specific prior written permission.
   16  *
   17  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
   18  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   19  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   20  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
   21  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
   22  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
   23  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
   24  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
   25  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
   26  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   27  * SUCH DAMAGE.
   28  *
   29  * Copyright (c) 1995, Mike Mitchell
   30  *
   31  * Redistribution and use in source and binary forms, with or without
   32  * modification, are permitted provided that the following conditions
   33  * are met:
   34  * 1. Redistributions of source code must retain the above copyright
   35  *    notice, this list of conditions and the following disclaimer.
   36  * 2. Redistributions in binary form must reproduce the above copyright
   37  *    notice, this list of conditions and the following disclaimer in the
   38  *    documentation and/or other materials provided with the distribution.
   39  * 3. All advertising materials mentioning features or use of this software
   40  *    must display the following acknowledgement:
   41  *      This product includes software developed by the University of
   42  *      California, Berkeley and its contributors.
   43  * 4. Neither the name of the University nor the names of its contributors
   44  *    may be used to endorse or promote products derived from this software
   45  *    without specific prior written permission.
   46  *
   47  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
   48  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   49  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   50  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
   51  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
   52  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
   53  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
   54  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
   55  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
   56  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   57  * SUCH DAMAGE.
   58  *
   59  *      @(#)spx_var.h
   60  *
   61  * $FreeBSD: stable/8/sys/netipx/spx_var.h 199583 2009-11-20 15:27:52Z jhb $
   62  */
   63 
   64 #ifndef _NETIPX_SPX_VAR_H_
   65 #define _NETIPX_SPX_VAR_H_
   66 
   67 struct  spxstat {
   68         long    spxs_connattempt;       /* connections initiated */
   69         long    spxs_accepts;           /* connections accepted */
   70         long    spxs_connects;          /* connections established */
   71         long    spxs_drops;             /* connections dropped */
   72         long    spxs_conndrops;         /* embryonic connections dropped */
   73         long    spxs_closed;            /* conn. closed (includes drops) */
   74         long    spxs_segstimed;         /* segs where we tried to get rtt */
   75         long    spxs_rttupdated;        /* times we succeeded */
   76         long    spxs_delack;            /* delayed acks sent */
   77         long    spxs_timeoutdrop;       /* conn. dropped in rxmt timeout */
   78         long    spxs_rexmttimeo;        /* retransmit timeouts */
   79         long    spxs_persisttimeo;      /* persist timeouts */
   80         long    spxs_keeptimeo;         /* keepalive timeouts */
   81         long    spxs_keepprobe;         /* keepalive probes sent */
   82         long    spxs_keepdrops;         /* connections dropped in keepalive */
   83 
   84         long    spxs_sndtotal;          /* total packets sent */
   85         long    spxs_sndpack;           /* data packets sent */
   86         long    spxs_sndbyte;           /* data bytes sent */
   87         long    spxs_sndrexmitpack;     /* data packets retransmitted */
   88         long    spxs_sndrexmitbyte;     /* data bytes retransmitted */
   89         long    spxs_sndacks;           /* ack-only packets sent */
   90         long    spxs_sndprobe;          /* window probes sent */
   91         long    spxs_sndurg;            /* packets sent with URG only */
   92         long    spxs_sndwinup;          /* window update-only packets sent */
   93         long    spxs_sndctrl;           /* control (SYN|FIN|RST) packets sent */
   94         long    spxs_sndvoid;           /* couldn't find requested packet*/
   95 
   96         long    spxs_rcvtotal;          /* total packets received */
   97         long    spxs_rcvpack;           /* packets received in sequence */
   98         long    spxs_rcvbyte;           /* bytes received in sequence */
   99         long    spxs_rcvbadsum;         /* packets received with ccksum errs */
  100         long    spxs_rcvbadoff;         /* packets received with bad offset */
  101         long    spxs_rcvshort;          /* packets received too short */
  102         long    spxs_rcvduppack;        /* duplicate-only packets received */
  103         long    spxs_rcvdupbyte;        /* duplicate-only bytes received */
  104         long    spxs_rcvpartduppack;    /* packets with some duplicate data */
  105         long    spxs_rcvpartdupbyte;    /* dup. bytes in part-dup. packets */
  106         long    spxs_rcvoopack;         /* out-of-order packets received */
  107         long    spxs_rcvoobyte;         /* out-of-order bytes received */
  108         long    spxs_rcvpackafterwin;   /* packets with data after window */
  109         long    spxs_rcvbyteafterwin;   /* bytes rcvd after window */
  110         long    spxs_rcvafterclose;     /* packets rcvd after "close" */
  111         long    spxs_rcvwinprobe;       /* rcvd window probe packets */
  112         long    spxs_rcvdupack;         /* rcvd duplicate acks */
  113         long    spxs_rcvacktoomuch;     /* rcvd acks for unsent data */
  114         long    spxs_rcvackpack;        /* rcvd ack packets */
  115         long    spxs_rcvackbyte;        /* bytes acked by rcvd acks */
  116         long    spxs_rcvwinupd;         /* rcvd window update packets */
  117 };
  118 struct  spx_istat {
  119         short   hdrops;
  120         short   badsum;
  121         short   badlen;
  122         short   slotim;
  123         short   fastim;
  124         short   nonucn;
  125         short   noconn;
  126         short   notme;
  127         short   wrncon;
  128         short   bdreas;
  129         short   gonawy;
  130         short   notyet;
  131         short   lstdup;
  132         struct spxstat newstats;
  133 };
  134 
  135 #define SPX_ISSINCR     128
  136 /*
  137  * spx sequence numbers are 16 bit integers operated
  138  * on with modular arithmetic.  These macros can be
  139  * used to compare such integers.
  140  */
  141 #define SSEQ_LT(a,b)    (((short)((a)-(b))) < 0)
  142 #define SSEQ_LEQ(a,b)   (((short)((a)-(b))) <= 0)
  143 #define SSEQ_GT(a,b)    (((short)((a)-(b))) > 0)
  144 #define SSEQ_GEQ(a,b)   (((short)((a)-(b))) >= 0)
  145 
  146 #ifdef _KERNEL
  147 /* Following was struct spxstat spxstat; */
  148 #ifndef spxstat
  149 #define spxstat spx_istat.newstats
  150 #endif
  151 extern struct spx_istat spx_istat;
  152 extern u_short  spx_newchecks[50];
  153 
  154 int     spx_output(struct spxpcb *cb, struct mbuf *m0);
  155 int     spx_reass(struct spxpcb *cb, struct mbuf *msi, struct spx *si);
  156 void    spx_reass_flush(struct spxpcb *cb);
  157 void    spx_reass_init(struct spxpcb *cb);
  158 #endif
  159 
  160 #endif /* !_NETIPX_SPX_VAR_H_ */

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