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