sys/netinet/tcp_stats.h

   1 /*
   2  * Copyright (c) 2003-2004
   3  *      Hiten Pandya <hmp@backplane.com>.  All rights reserved.
   4  *
   5  * Copyright (c) 1982, 1986, 1993, 1994, 1995
   6  *      The Regents of the University of California.  All rights reserved.
   7  *
   8  * Redistribution and use in source and binary forms, with or without
   9  * modification, are permitted provided that the following conditions
  10  * are met:
  11  * 1. Redistributions of source code must retain the above copyright
  12  *    notice, this list of conditions and the following disclaimer.
  13  * 2. Redistributions in binary form must reproduce the above copyright
  14  *    notice, this list of conditions and the following disclaimer in the
  15  *    documentation and/or other materials provided with the distribution.
  16  * 3. All advertising materials mentioning features or use of this software
  17  *    must display the following acknowledgement:
  18  *      This product includes software developed by the University of
  19  *      California, Berkeley and its contributors.
  20  * 4. Neither the name of the University nor the names of its contributors
  21  *    may be used to endorse or promote products derived from this software
  22  *    without specific prior written permission.
  23  *
  24  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  25  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  26  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  27  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  28  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  29  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  30  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  31  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  32  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  33  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  34  * SUCH DAMAGE.
  35  *
  36  * $DragonFly: src/sys/netinet/Attic/tcp_stats.h,v 1.1 2004/04/07 20:56:15 dillon Exp $
  37  */
  38
  39 #ifndef _NETINET_TCP_STATS_H_
  40 #define _NETINET_TCP_STATS_H_
  41
  42 #ifdef _KERNEL
  43 #ifdef SMP
  44 /*
  45  * Uglyness, but it allows us to safely redefine in a critical path
  46  * function, so a cached globaldata pointer can be accessed.  HMP.
  47  */
  48 #define _GD     mycpu
  49 #define tcpstat tcpstats_ary[_GD->gd_cpuid]
  50 #else /* !SMP */
  51 #define tcpstat tcpstats_ary[0] /* only one CPU */
  52 #endif
  53
  54 struct tcp_stats;
  55 extern struct tcp_stats         tcpstats_ary[MAXCPU];
  56 #endif
  57
  58 /*
  59  * TCP statistics.
  60  *
  61  * Many of these should be kept per connection,
  62  * but that's inconvenient at the moment.
  63  */
  64 struct tcp_stats {
  65         u_long  tcps_connattempt;       /* connections initiated */
  66         u_long  tcps_accepts;           /* connections accepted */
  67         u_long  tcps_connects;          /* connections established */
  68         u_long  tcps_drops;             /* connections dropped */
  69         u_long  tcps_conndrops;         /* embryonic connections dropped */
  70         u_long  tcps_closed;            /* conn. closed (includes drops) */
  71         u_long  tcps_segstimed;         /* segs where we tried to get rtt */
  72         u_long  tcps_rttupdated;        /* times we succeeded */
  73         u_long  tcps_delack;            /* delayed acks sent */
  74         u_long  tcps_timeoutdrop;       /* conn. dropped in rxmt timeout */
  75         u_long  tcps_rexmttimeo;        /* retransmit timeouts */
  76         u_long  tcps_persisttimeo;      /* persist timeouts */
  77         u_long  tcps_keeptimeo;         /* keepalive timeouts */
  78         u_long  tcps_keepprobe;         /* keepalive probes sent */
  79         u_long  tcps_keepdrops;         /* connections dropped in keepalive */
  80
  81         u_long  tcps_sndtotal;          /* total packets sent */
  82         u_long  tcps_sndpack;           /* data packets sent */
  83         u_long  tcps_sndbyte;           /* data bytes sent */
  84         u_long  tcps_sndrexmitpack;     /* data packets retransmitted */
  85         u_long  tcps_sndrexmitbyte;     /* data bytes retransmitted */
  86         u_long  tcps_sndfastrexmit;     /* Fast Retransmissions */
  87         u_long  tcps_sndearlyrexmit;    /* early Fast Retransmissions */
  88         u_long  tcps_sndlimited;        /* Limited Transmit packets */
  89         u_long  tcps_sndrtobad;         /* spurious RTO retransmissions */
  90         u_long  tcps_sndfastrexmitbad;  /* spurious Fast Retransmissions */
  91         u_long  tcps_sndearlyrexmitbad; /* spurious early Fast Retransmissions,
  92                                            a subset of tcps_sndfastrexmitbad */
  93         u_long  tcps_eifeldetected;     /* Eifel-detected spurious rexmits */
  94         u_long  tcps_rttcantdetect;     /* Eifel but not 1/2 RTT-detectable */
  95         u_long  tcps_rttdetected;       /* RTT-detected spurious RTO rexmits */
  96         u_long  tcps_sndacks;           /* ack-only packets sent */
  97         u_long  tcps_sndprobe;          /* window probes sent */
  98         u_long  tcps_sndurg;            /* packets sent with URG only */
  99         u_long  tcps_sndwinup;          /* window update-only packets sent */
 100         u_long  tcps_sndctrl;           /* control (SYN|FIN|RST) packets sent */
 101
 102         u_long  tcps_rcvtotal;          /* total packets received */
 103         u_long  tcps_rcvpack;           /* packets received in sequence */
 104         u_long  tcps_rcvbyte;           /* bytes received in sequence */
 105         u_long  tcps_rcvbadsum;         /* packets received with ccksum errs */
 106         u_long  tcps_rcvbadoff;         /* packets received with bad offset */
 107         u_long  tcps_rcvmemdrop;        /* packets dropped for lack of memory */
 108         u_long  tcps_rcvshort;          /* packets received too short */
 109         u_long  tcps_rcvduppack;        /* duplicate-only packets received */
 110         u_long  tcps_rcvdupbyte;        /* duplicate-only bytes received */
 111         u_long  tcps_rcvpartduppack;    /* packets with some duplicate data */
 112         u_long  tcps_rcvpartdupbyte;    /* dup. bytes in part-dup. packets */
 113         u_long  tcps_rcvoopack;         /* out-of-order packets received */
 114         u_long  tcps_rcvoobyte;         /* out-of-order bytes received */
 115         u_long  tcps_rcvpackafterwin;   /* packets with data after window */
 116         u_long  tcps_rcvbyteafterwin;   /* bytes rcvd after window */
 117         u_long  tcps_rcvafterclose;     /* packets rcvd after "close" */
 118         u_long  tcps_rcvwinprobe;       /* rcvd window probe packets */
 119         u_long  tcps_rcvdupack;         /* rcvd duplicate acks */
 120         u_long  tcps_rcvacktoomuch;     /* rcvd acks for unsent data */
 121         u_long  tcps_rcvackpack;        /* rcvd ack packets */
 122         u_long  tcps_rcvackbyte;        /* bytes acked by rcvd acks */
 123         u_long  tcps_rcvwinupd;         /* rcvd window update packets */
 124         u_long  tcps_pawsdrop;          /* segments dropped due to PAWS */
 125         u_long  tcps_predack;           /* times hdr predict ok for acks */
 126         u_long  tcps_preddat;           /* times hdr predict ok for data pkts */
 127         u_long  tcps_pcbcachemiss;
 128         u_long  tcps_cachedrtt;         /* times cached RTT in route updated */
 129         u_long  tcps_cachedrttvar;      /* times cached rttvar updated */
 130         u_long  tcps_cachedssthresh;    /* times cached ssthresh updated */
 131         u_long  tcps_usedrtt;           /* times RTT initialized from route */
 132         u_long  tcps_usedrttvar;        /* times RTTVAR initialized from rt */
 133         u_long  tcps_usedssthresh;      /* times ssthresh initialized from rt*/
 134         u_long  tcps_persistdrop;       /* timeout in persist state */
 135         u_long  tcps_badsyn;            /* bogus SYN, e.g. premature ACK */
 136         u_long  tcps_mturesent;         /* resends due to MTU discovery */
 137         u_long  tcps_listendrop;        /* listen queue overflows */
 138
 139         u_long  tcps_sc_added;          /* entry added to syncache */
 140         u_long  tcps_sc_retransmitted;  /* syncache entry was retransmitted */
 141         u_long  tcps_sc_dupsyn;         /* duplicate SYN packet */
 142         u_long  tcps_sc_dropped;        /* could not reply to packet */
 143         u_long  tcps_sc_completed;      /* successful extraction of entry */
 144         u_long  tcps_sc_bucketoverflow; /* syncache per-bucket limit hit */
 145         u_long  tcps_sc_cacheoverflow;  /* syncache cache limit hit */
 146         u_long  tcps_sc_reset;          /* RST removed entry from syncache */
 147         u_long  tcps_sc_stale;          /* timed out or listen socket gone */
 148         u_long  tcps_sc_aborted;        /* syncache entry aborted */
 149         u_long  tcps_sc_badack;         /* removed due to bad ACK */
 150         u_long  tcps_sc_unreach;        /* ICMP unreachable received */
 151         u_long  tcps_sc_zonefail;       /* zalloc() failed */
 152         u_long  tcps_sc_sendcookie;     /* SYN cookie sent */
 153         u_long  tcps_sc_recvcookie;     /* SYN cookie received */
 154 };
 155
 156 #endif /* _NETINET_TCP_STATS_H_ */