sys/netinet/sctp_kdtrace.c

   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/param.h>
  35 #include <sys/kernel.h>
  36 #include <sys/sdt.h>
  37
  38 SDT_PROVIDER_DEFINE(sctp);
  39
  40 /********************************************************/
  41 /* Cwnd probe - tracks changes in the congestion window on a netp */
  42 /********************************************************/
  43 /* Initial */
  44 SDT_PROBE_DEFINE5(sctp, cwnd, net, init,
  45     "uint32_t",                 /* The Vtag for this end */
  46     "uint32_t",                 /* The port number of the local side << 16 |
  47                                  * port number of remote in network byte
  48                                  * order. */
  49     "uintptr_t",                /* The pointer to the struct sctp_nets *
  50                                  * changing */
  51     "int",                      /* The old value of the cwnd */
  52     "int");                     /* The new value of the cwnd */
  53
  54 /* ACK-INCREASE */
  55 SDT_PROBE_DEFINE5(sctp, cwnd, net, ack,
  56     "uint32_t",                 /* The Vtag for this end */
  57     "uint32_t",                 /* The port number of the local side << 16 |
  58                                  * port number of remote in network byte
  59                                  * order. */
  60     "uintptr_t",                /* The pointer to the struct sctp_nets *
  61                                  * changing */
  62     "int",                      /* The old value of the cwnd */
  63     "int");                     /* The new value of the cwnd */
  64
  65 /* ACK-INCREASE */
  66 SDT_PROBE_DEFINE5(sctp, cwnd, net, rttvar,
  67     "uint64_t",                 /* The Vtag << 32 | localport << 16 |
  68                                  * remoteport */
  69     "uint64_t",                 /* obw | nbw */
  70     "uint64_t",                 /* bwrtt | newrtt */
  71     "uint64_t",                 /* flight */
  72     "uint64_t");                /* (cwnd << 32) | point << 16 | retval(0/1) */
  73
  74 SDT_PROBE_DEFINE5(sctp, cwnd, net, rttstep,
  75     "uint64_t",                 /* The Vtag << 32 | localport << 16 |
  76                                  * remoteport */
  77     "uint64_t",                 /* obw | nbw */
  78     "uint64_t",                 /* bwrtt | newrtt */
  79     "uint64_t",                 /* flight */
  80     "uint64_t");                /* (cwnd << 32) | point << 16 | retval(0/1) */
  81
  82 /* FastRetransmit-DECREASE */
  83 SDT_PROBE_DEFINE5(sctp, cwnd, net, fr,
  84     "uint32_t",                 /* The Vtag for this end */
  85     "uint32_t",                 /* The port number of the local side << 16 |
  86                                  * port number of remote in network byte
  87                                  * order. */
  88     "uintptr_t",                /* The pointer to the struct sctp_nets *
  89                                  * changing */
  90     "int",                      /* The old value of the cwnd */
  91     "int");                     /* The new value of the cwnd */
  92
  93 /* TimeOut-DECREASE */
  94 SDT_PROBE_DEFINE5(sctp, cwnd, net, to,
  95     "uint32_t",                 /* The Vtag for this end */
  96     "uint32_t",                 /* The port number of the local side << 16 |
  97                                  * port number of remote in network byte
  98                                  * order. */
  99     "uintptr_t",                /* The pointer to the struct sctp_nets *
 100                                  * changing */
 101     "int",                      /* The old value of the cwnd */
 102     "int");                     /* The new value of the cwnd */
 103
 104 /* BurstLimit-DECREASE */
 105 SDT_PROBE_DEFINE5(sctp, cwnd, net, bl,
 106     "uint32_t",                 /* The Vtag for this end */
 107     "uint32_t",                 /* The port number of the local side << 16 |
 108                                  * port number of remote in network byte
 109                                  * order. */
 110     "uintptr_t",                /* The pointer to the struct sctp_nets *
 111                                  * changing */
 112     "int",                      /* The old value of the cwnd */
 113     "int");                     /* The new value of the cwnd */
 114
 115 /* ECN-DECREASE */
 116 SDT_PROBE_DEFINE5(sctp, cwnd, net, ecn,
 117     "uint32_t",                 /* The Vtag for this end */
 118     "uint32_t",                 /* The port number of the local side << 16 |
 119                                  * port number of remote in network byte
 120                                  * order. */
 121     "uintptr_t",                /* The pointer to the struct sctp_nets *
 122                                  * changing */
 123     "int",                      /* The old value of the cwnd */
 124     "int");                     /* The new value of the cwnd */
 125
 126 /* PacketDrop-DECREASE */
 127 SDT_PROBE_DEFINE5(sctp, cwnd, net, pd,
 128     "uint32_t",                 /* The Vtag for this end */
 129     "uint32_t",                 /* The port number of the local side << 16 |
 130                                  * port number of remote in network byte
 131                                  * order. */
 132     "uintptr_t",                /* The pointer to the struct sctp_nets *
 133                                  * changing */
 134     "int",                      /* The old value of the cwnd */
 135     "int");                     /* The new value of the cwnd */
 136
 137 /********************************************************/
 138 /* Rwnd probe - tracks changes in the receiver window for an assoc */
 139 /********************************************************/
 140 SDT_PROBE_DEFINE4(sctp, rwnd, assoc, val,
 141     "uint32_t",                 /* The Vtag for this end */
 142     "uint32_t",                 /* The port number of the local side << 16 |
 143                                  * port number of remote in network byte
 144                                  * order. */
 145     "int",                      /* The up/down amount */
 146     "int");                     /* The new value of the cwnd */
 147
 148 /********************************************************/
 149 /* flight probe - tracks changes in the flight size on a net or assoc */
 150 /********************************************************/
 151 SDT_PROBE_DEFINE5(sctp, flightsize, net, val,
 152     "uint32_t",                 /* The Vtag for this end */
 153     "uint32_t",                 /* The port number of the local side << 16 |
 154                                  * port number of remote in network byte
 155                                  * order. */
 156     "uintptr_t",                /* The pointer to the struct sctp_nets *
 157                                  * changing */
 158     "int",                      /* The up/down amount */
 159     "int");                     /* The new value of the cwnd */
 160
 161 /********************************************************/
 162 /* The total flight version */
 163 /********************************************************/
 164 SDT_PROBE_DEFINE4(sctp, flightsize, assoc, val,
 165     "uint32_t",                 /* The Vtag for this end */
 166     "uint32_t",                 /* The port number of the local side << 16 |
 167                                  * port number of remote in network byte
 168                                  * order. */
 169     "int",                      /* The up/down amount */
 170     "int");                     /* The new value of the cwnd */
 171
 172 /*
 173  * Standard Solaris-compatible probes.
 174  */
 175
 176 SDT_PROBE_DEFINE5_XLATE(sctp,,, receive,
 177     "void *", "pktinfo_t *",
 178     "struct sctp_tcb *", "csinfo_t *",
 179     "struct mbuf *", "ipinfo_t *",
 180     "struct sctp_tcb *", "sctpsinfo_t *",
 181     "struct sctphdr *", "sctpinfo_t *");
 182
 183 SDT_PROBE_DEFINE5_XLATE(sctp,,, send,
 184     "void *", "pktinfo_t *",
 185     "struct sctp_tcb *", "csinfo_t *",
 186     "uint8_t *", "ipinfo_t *",
 187     "struct sctp_tcb *", "sctpsinfo_t *",
 188     "struct sctphdr *", "sctpinfo_t *");
 189
 190 SDT_PROBE_DEFINE6_XLATE(sctp,,, state__change,
 191     "void *", "void *",
 192     "struct sctp_tcb *", "csinfo_t *",
 193     "void *", "void *",
 194     "struct sctp_tcb *", "sctpsinfo_t *",
 195     "void *", "void *",
 196     "int", "sctplsinfo_t *");