FreeBSD kernel IPv4 code
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
41SDT_PROVIDER_DEFINE(sctp);
42
43/********************************************************/
44/* Cwnd probe - tracks changes in the congestion window on a netp */
45/********************************************************/
46/* Initial */
47SDT_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 */
58SDT_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 */
69SDT_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
77SDT_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 */
86SDT_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 */
97SDT_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 */
108SDT_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 */
119SDT_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 */
130SDT_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/********************************************************/
143SDT_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/********************************************************/
154SDT_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/********************************************************/
167SDT_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
179SDT_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
186SDT_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
193SDT_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 *");
SDT_PROBE_DEFINE5
SDT_PROBE_DEFINE5(sctp, cwnd, net, init, "uint32_t", "uint32_t", "uintptr_t", "int", "int")
SDT_PROBE_DEFINE4
SDT_PROBE_DEFINE4(sctp, rwnd, assoc, val, "uint32_t", "uint32_t", "int", "int")
SDT_PROBE_DEFINE6_XLATE
SDT_PROBE_DEFINE6_XLATE(sctp,,, state__change, "void *", "void *", "struct sctp_tcb *", "csinfo_t *", "void *", "void *", "struct sctp_tcb *", "sctpsinfo_t *", "void *", "void *", "int", "sctplsinfo_t *")
__FBSDID
__FBSDID("$FreeBSD$")
SDT_PROVIDER_DEFINE
SDT_PROVIDER_DEFINE(sctp)
SDT_PROBE_DEFINE5_XLATE
SDT_PROBE_DEFINE5_XLATE(sctp,,, receive, "void *", "pktinfo_t *", "struct sctp_tcb *", "csinfo_t *", "struct mbuf *", "ipinfo_t *", "struct sctp_tcb *", "sctpsinfo_t *", "struct sctphdr *", "sctpinfo_t *")