sctp_kdtrace.c

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    1 /*-
    2  * SPDX-License-Identifier: BSD-3-Clause
    3  *
    4  * Copyright (c) 2008-2012, by Randall Stewart. All rights reserved.
    5  * Copyright (c) 2008-2012, by Michael Tuexen. All rights reserved.
    6  *
    7  * Redistribution and use in source and binary forms, with or without
    8  * modification, are permitted provided that the following conditions are met:
    9  *
   10  * a) Redistributions of source code must retain the above copyright notice,
   11  *    this list of conditions and the following disclaimer.
   12  *
   13  * b) Redistributions in binary form must reproduce the above copyright
   14  *    notice, this list of conditions and the following disclaimer in
   15  *    the documentation and/or other materials provided with the distribution.
   16  *
   17  * c) Neither the name of Cisco Systems, Inc. nor the names of its
   18  *    contributors may be used to endorse or promote products derived
   19  *    from this software without specific prior written permission.
   20  *
   21  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
   22  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
   23  * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   24  * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
   25  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
   26  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
   27  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
   28  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
   29  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
   30  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
   31  * THE POSSIBILITY OF SUCH DAMAGE.
   32  */
   33 
   34 #include <sys/cdefs.h>
   35 __FBSDID("$FreeBSD$");
   36 
   37 #include <sys/param.h>
   38 #include <sys/kernel.h>
   39 #include <sys/sdt.h>
   40 
   41 SDT_PROVIDER_DEFINE(sctp);
   42 
   43 /********************************************************/
   44 /* Cwnd probe - tracks changes in the congestion window on a netp */
   45 /********************************************************/
   46 /* Initial */
   47 SDT_PROBE_DEFINE5(sctp, cwnd, net, init,
   48     "uint32_t",                 /* The Vtag for this end */
   49     "uint32_t",                 /* The port number of the local side << 16 |
   50                                  * port number of remote in network byte
   51                                  * order. */
   52     "uintptr_t",                /* The pointer to the struct sctp_nets *
   53                                  * changing */
   54     "int",                      /* The old value of the cwnd */
   55     "int");                     /* The new value of the cwnd */
   56 
   57 /* ACK-INCREASE */
   58 SDT_PROBE_DEFINE5(sctp, cwnd, net, ack,
   59     "uint32_t",                 /* The Vtag for this end */
   60     "uint32_t",                 /* The port number of the local side << 16 |
   61                                  * port number of remote in network byte
   62                                  * order. */
   63     "uintptr_t",                /* The pointer to the struct sctp_nets *
   64                                  * changing */
   65     "int",                      /* The old value of the cwnd */
   66     "int");                     /* The new value of the cwnd */
   67 
   68 /* ACK-INCREASE */
   69 SDT_PROBE_DEFINE5(sctp, cwnd, net, rttvar,
   70     "uint64_t",                 /* The Vtag << 32 | localport << 16 |
   71                                  * remoteport */
   72     "uint64_t",                 /* obw | nbw */
   73     "uint64_t",                 /* bwrtt | newrtt */
   74     "uint64_t",                 /* flight */
   75     "uint64_t");                /* (cwnd << 32) | point << 16 | retval(0/1) */
   76 
   77 SDT_PROBE_DEFINE5(sctp, cwnd, net, rttstep,
   78     "uint64_t",                 /* The Vtag << 32 | localport << 16 |
   79                                  * remoteport */
   80     "uint64_t",                 /* obw | nbw */
   81     "uint64_t",                 /* bwrtt | newrtt */
   82     "uint64_t",                 /* flight */
   83     "uint64_t");                /* (cwnd << 32) | point << 16 | retval(0/1) */
   84 
   85 /* FastRetransmit-DECREASE */
   86 SDT_PROBE_DEFINE5(sctp, cwnd, net, fr,
   87     "uint32_t",                 /* The Vtag for this end */
   88     "uint32_t",                 /* The port number of the local side << 16 |
   89                                  * port number of remote in network byte
   90                                  * order. */
   91     "uintptr_t",                /* The pointer to the struct sctp_nets *
   92                                  * changing */
   93     "int",                      /* The old value of the cwnd */
   94     "int");                     /* The new value of the cwnd */
   95 
   96 /* TimeOut-DECREASE */
   97 SDT_PROBE_DEFINE5(sctp, cwnd, net, to,
   98     "uint32_t",                 /* The Vtag for this end */
   99     "uint32_t",                 /* The port number of the local side << 16 |
  100                                  * port number of remote in network byte
  101                                  * order. */
  102     "uintptr_t",                /* The pointer to the struct sctp_nets *
  103                                  * changing */
  104     "int",                      /* The old value of the cwnd */
  105     "int");                     /* The new value of the cwnd */
  106 
  107 /* BurstLimit-DECREASE */
  108 SDT_PROBE_DEFINE5(sctp, cwnd, net, bl,
  109     "uint32_t",                 /* The Vtag for this end */
  110     "uint32_t",                 /* The port number of the local side << 16 |
  111                                  * port number of remote in network byte
  112                                  * order. */
  113     "uintptr_t",                /* The pointer to the struct sctp_nets *
  114                                  * changing */
  115     "int",                      /* The old value of the cwnd */
  116     "int");                     /* The new value of the cwnd */
  117 
  118 /* ECN-DECREASE */
  119 SDT_PROBE_DEFINE5(sctp, cwnd, net, ecn,
  120     "uint32_t",                 /* The Vtag for this end */
  121     "uint32_t",                 /* The port number of the local side << 16 |
  122                                  * port number of remote in network byte
  123                                  * order. */
  124     "uintptr_t",                /* The pointer to the struct sctp_nets *
  125                                  * changing */
  126     "int",                      /* The old value of the cwnd */
  127     "int");                     /* The new value of the cwnd */
  128 
  129 /* PacketDrop-DECREASE */
  130 SDT_PROBE_DEFINE5(sctp, cwnd, net, pd,
  131     "uint32_t",                 /* The Vtag for this end */
  132     "uint32_t",                 /* The port number of the local side << 16 |
  133                                  * port number of remote in network byte
  134                                  * order. */
  135     "uintptr_t",                /* The pointer to the struct sctp_nets *
  136                                  * changing */
  137     "int",                      /* The old value of the cwnd */
  138     "int");                     /* The new value of the cwnd */
  139 
  140 /********************************************************/
  141 /* Rwnd probe - tracks changes in the receiver window for an assoc */
  142 /********************************************************/
  143 SDT_PROBE_DEFINE4(sctp, rwnd, assoc, val,
  144     "uint32_t",                 /* The Vtag for this end */
  145     "uint32_t",                 /* The port number of the local side << 16 |
  146                                  * port number of remote in network byte
  147                                  * order. */
  148     "int",                      /* The up/down amount */
  149     "int");                     /* The new value of the cwnd */
  150 
  151 /********************************************************/
  152 /* flight probe - tracks changes in the flight size on a net or assoc */
  153 /********************************************************/
  154 SDT_PROBE_DEFINE5(sctp, flightsize, net, val,
  155     "uint32_t",                 /* The Vtag for this end */
  156     "uint32_t",                 /* The port number of the local side << 16 |
  157                                  * port number of remote in network byte
  158                                  * order. */
  159     "uintptr_t",                /* The pointer to the struct sctp_nets *
  160                                  * changing */
  161     "int",                      /* The up/down amount */
  162     "int");                     /* The new value of the cwnd */
  163 
  164 /********************************************************/
  165 /* The total flight version */
  166 /********************************************************/
  167 SDT_PROBE_DEFINE4(sctp, flightsize, assoc, val,
  168     "uint32_t",                 /* The Vtag for this end */
  169     "uint32_t",                 /* The port number of the local side << 16 |
  170                                  * port number of remote in network byte
  171                                  * order. */
  172     "int",                      /* The up/down amount */
  173     "int");                     /* The new value of the cwnd */
  174 
  175 /*
  176  * Standard Solaris-compatible probes.
  177  */
  178 
  179 SDT_PROBE_DEFINE5_XLATE(sctp,,, receive,
  180     "void *", "pktinfo_t *",
  181     "struct sctp_tcb *", "csinfo_t *",
  182     "struct mbuf *", "ipinfo_t *",
  183     "struct sctp_tcb *", "sctpsinfo_t *",
  184     "struct sctphdr *", "sctpinfo_t *");
  185 
  186 SDT_PROBE_DEFINE5_XLATE(sctp,,, send,
  187     "void *", "pktinfo_t *",
  188     "struct sctp_tcb *", "csinfo_t *",
  189     "uint8_t *", "ipinfo_t *",
  190     "struct sctp_tcb *", "sctpsinfo_t *",
  191     "struct sctphdr *", "sctpinfo_t *");
  192 
  193 SDT_PROBE_DEFINE6_XLATE(sctp,,, state__change,
  194     "void *", "void *",
  195     "struct sctp_tcb *", "csinfo_t *",
  196     "void *", "void *",
  197     "struct sctp_tcb *", "sctpsinfo_t *",
  198     "void *", "void *",
  199     "int", "sctplsinfo_t *");

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FreeBSD/Linux Kernel Cross Reference sys/netinet/sctp_kdtrace.c

FreeBSD/Linux Kernel Cross Reference
sys/netinet/sctp_kdtrace.c