1 // SPDX-License-Identifier: GPL-2.0-or-later !! 1 /* SCTP kernel reference Implementation
2 /* SCTP kernel implementation <<
3 * (C) Copyright IBM Corp. 2001, 2004 2 * (C) Copyright IBM Corp. 2001, 2004
4 * Copyright (c) 1999-2000 Cisco, Inc. 3 * Copyright (c) 1999-2000 Cisco, Inc.
5 * Copyright (c) 1999-2001 Motorola, Inc. 4 * Copyright (c) 1999-2001 Motorola, Inc.
6 * Copyright (c) 2001 Intel Corp. 5 * Copyright (c) 2001 Intel Corp.
7 * !! 6 *
8 * This file is part of the SCTP kernel implem !! 7 * This file is part of the SCTP kernel reference Implementation
9 * !! 8 *
>> 9 * This file is part of the implementation of the add-IP extension,
>> 10 * based on <draft-ietf-tsvwg-addip-sctp-02.txt> June 29, 2001,
>> 11 * for the SCTP kernel reference Implementation.
>> 12 *
10 * This file converts numerical ID value to al 13 * This file converts numerical ID value to alphabetical names for SCTP
11 * terms such as chunk type, parameter time, e 14 * terms such as chunk type, parameter time, event type, etc.
12 * !! 15 *
>> 16 * The SCTP reference implementation is free software;
>> 17 * you can redistribute it and/or modify it under the terms of
>> 18 * the GNU General Public License as published by
>> 19 * the Free Software Foundation; either version 2, or (at your option)
>> 20 * any later version.
>> 21 *
>> 22 * The SCTP reference implementation is distributed in the hope that it
>> 23 * will be useful, but WITHOUT ANY WARRANTY; without even the implied
>> 24 * ************************
>> 25 * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
>> 26 * See the GNU General Public License for more details.
>> 27 *
>> 28 * You should have received a copy of the GNU General Public License
>> 29 * along with GNU CC; see the file COPYING. If not, write to
>> 30 * the Free Software Foundation, 59 Temple Place - Suite 330,
>> 31 * Boston, MA 02111-1307, USA.
>> 32 *
13 * Please send any bug reports or fixes you ma 33 * Please send any bug reports or fixes you make to the
14 * email address(es): 34 * email address(es):
15 * lksctp developers <linux-sctp@vger.kerne !! 35 * lksctp developers <lksctp-developers@lists.sourceforge.net>
>> 36 *
>> 37 * Or submit a bug report through the following website:
>> 38 * http://www.sf.net/projects/lksctp
16 * 39 *
17 * Written or modified by: !! 40 * Written or modified by:
18 * La Monte H.P. Yarroll <piggy@acm.org> 41 * La Monte H.P. Yarroll <piggy@acm.org>
19 * Karl Knutson <karl@athena.chica 42 * Karl Knutson <karl@athena.chicago.il.us>
20 * Xingang Guo <xingang.guo@intel 43 * Xingang Guo <xingang.guo@intel.com>
21 * Jon Grimm <jgrimm@us.ibm.com 44 * Jon Grimm <jgrimm@us.ibm.com>
22 * Daisy Chang <daisyc@us.ibm.com 45 * Daisy Chang <daisyc@us.ibm.com>
23 * Sridhar Samudrala <sri@us.ibm.com> 46 * Sridhar Samudrala <sri@us.ibm.com>
>> 47 *
>> 48 * Any bugs reported given to us we will try to fix... any fixes shared will
>> 49 * be incorporated into the next SCTP release.
24 */ 50 */
25 51
26 #include <net/sctp/sctp.h> 52 #include <net/sctp/sctp.h>
27 53
>> 54 #if SCTP_DEBUG
>> 55 int sctp_debug_flag = 1; /* Initially enable DEBUG */
>> 56 #endif /* SCTP_DEBUG */
>> 57
28 /* These are printable forms of Chunk ID's fro 58 /* These are printable forms of Chunk ID's from section 3.1. */
29 static const char *const sctp_cid_tbl[SCTP_NUM !! 59 static const char *sctp_cid_tbl[SCTP_NUM_BASE_CHUNK_TYPES] = {
30 "DATA", 60 "DATA",
31 "INIT", 61 "INIT",
32 "INIT_ACK", 62 "INIT_ACK",
33 "SACK", 63 "SACK",
34 "HEARTBEAT", 64 "HEARTBEAT",
35 "HEARTBEAT_ACK", 65 "HEARTBEAT_ACK",
36 "ABORT", 66 "ABORT",
37 "SHUTDOWN", 67 "SHUTDOWN",
38 "SHUTDOWN_ACK", 68 "SHUTDOWN_ACK",
39 "ERROR", 69 "ERROR",
40 "COOKIE_ECHO", 70 "COOKIE_ECHO",
41 "COOKIE_ACK", 71 "COOKIE_ACK",
42 "ECN_ECNE", 72 "ECN_ECNE",
43 "ECN_CWR", 73 "ECN_CWR",
44 "SHUTDOWN_COMPLETE", 74 "SHUTDOWN_COMPLETE",
45 }; 75 };
46 76
47 /* Lookup "chunk type" debug name. */ 77 /* Lookup "chunk type" debug name. */
48 const char *sctp_cname(const union sctp_subtyp !! 78 const char *sctp_cname(const sctp_subtype_t cid)
49 { 79 {
>> 80 if (cid.chunk < 0)
>> 81 return "illegal chunk id";
50 if (cid.chunk <= SCTP_CID_BASE_MAX) 82 if (cid.chunk <= SCTP_CID_BASE_MAX)
51 return sctp_cid_tbl[cid.chunk] 83 return sctp_cid_tbl[cid.chunk];
52 !! 84
53 switch (cid.chunk) { 85 switch (cid.chunk) {
54 case SCTP_CID_ASCONF: 86 case SCTP_CID_ASCONF:
55 return "ASCONF"; 87 return "ASCONF";
56 88
57 case SCTP_CID_ASCONF_ACK: 89 case SCTP_CID_ASCONF_ACK:
58 return "ASCONF_ACK"; 90 return "ASCONF_ACK";
59 91
60 case SCTP_CID_FWD_TSN: 92 case SCTP_CID_FWD_TSN:
61 return "FWD_TSN"; 93 return "FWD_TSN";
62 94
63 case SCTP_CID_AUTH: <<
64 return "AUTH"; <<
65 <<
66 case SCTP_CID_RECONF: <<
67 return "RECONF"; <<
68 <<
69 case SCTP_CID_I_DATA: <<
70 return "I_DATA"; <<
71 <<
72 case SCTP_CID_I_FWD_TSN: <<
73 return "I_FWD_TSN"; <<
74 <<
75 default: 95 default:
76 break; !! 96 return "unknown chunk";
77 } !! 97 };
78 <<
79 return "unknown chunk"; 98 return "unknown chunk";
80 } 99 }
81 100
82 /* These are printable forms of the states. * 101 /* These are printable forms of the states. */
83 const char *const sctp_state_tbl[SCTP_STATE_NU !! 102 const char *sctp_state_tbl[SCTP_STATE_NUM_STATES] = {
>> 103 "STATE_EMPTY",
84 "STATE_CLOSED", 104 "STATE_CLOSED",
85 "STATE_COOKIE_WAIT", 105 "STATE_COOKIE_WAIT",
86 "STATE_COOKIE_ECHOED", 106 "STATE_COOKIE_ECHOED",
87 "STATE_ESTABLISHED", 107 "STATE_ESTABLISHED",
88 "STATE_SHUTDOWN_PENDING", 108 "STATE_SHUTDOWN_PENDING",
89 "STATE_SHUTDOWN_SENT", 109 "STATE_SHUTDOWN_SENT",
90 "STATE_SHUTDOWN_RECEIVED", 110 "STATE_SHUTDOWN_RECEIVED",
91 "STATE_SHUTDOWN_ACK_SENT", 111 "STATE_SHUTDOWN_ACK_SENT",
92 }; 112 };
93 113
94 /* Events that could change the state of an as 114 /* Events that could change the state of an association. */
95 const char *const sctp_evttype_tbl[] = { !! 115 const char *sctp_evttype_tbl[] = {
96 "EVENT_T_unknown", 116 "EVENT_T_unknown",
97 "EVENT_T_CHUNK", 117 "EVENT_T_CHUNK",
98 "EVENT_T_TIMEOUT", 118 "EVENT_T_TIMEOUT",
99 "EVENT_T_OTHER", 119 "EVENT_T_OTHER",
100 "EVENT_T_PRIMITIVE" 120 "EVENT_T_PRIMITIVE"
101 }; 121 };
102 122
103 /* Return value of a state function */ 123 /* Return value of a state function */
104 const char *const sctp_status_tbl[] = { !! 124 const char *sctp_status_tbl[] = {
105 "DISPOSITION_DISCARD", 125 "DISPOSITION_DISCARD",
106 "DISPOSITION_CONSUME", 126 "DISPOSITION_CONSUME",
107 "DISPOSITION_NOMEM", 127 "DISPOSITION_NOMEM",
108 "DISPOSITION_DELETE_TCB", 128 "DISPOSITION_DELETE_TCB",
109 "DISPOSITION_ABORT", 129 "DISPOSITION_ABORT",
110 "DISPOSITION_VIOLATION", 130 "DISPOSITION_VIOLATION",
111 "DISPOSITION_NOT_IMPL", 131 "DISPOSITION_NOT_IMPL",
112 "DISPOSITION_ERROR", 132 "DISPOSITION_ERROR",
113 "DISPOSITION_BUG" 133 "DISPOSITION_BUG"
114 }; 134 };
115 135
116 /* Printable forms of primitives */ 136 /* Printable forms of primitives */
117 static const char *const sctp_primitive_tbl[SC !! 137 static const char *sctp_primitive_tbl[SCTP_NUM_PRIMITIVE_TYPES] = {
118 "PRIMITIVE_ASSOCIATE", 138 "PRIMITIVE_ASSOCIATE",
119 "PRIMITIVE_SHUTDOWN", 139 "PRIMITIVE_SHUTDOWN",
120 "PRIMITIVE_ABORT", 140 "PRIMITIVE_ABORT",
121 "PRIMITIVE_SEND", 141 "PRIMITIVE_SEND",
122 "PRIMITIVE_REQUESTHEARTBEAT", 142 "PRIMITIVE_REQUESTHEARTBEAT",
123 "PRIMITIVE_ASCONF", <<
124 }; 143 };
125 144
126 /* Lookup primitive debug name. */ 145 /* Lookup primitive debug name. */
127 const char *sctp_pname(const union sctp_subtyp !! 146 const char *sctp_pname(const sctp_subtype_t id)
128 { 147 {
>> 148 if (id.primitive < 0)
>> 149 return "illegal primitive";
129 if (id.primitive <= SCTP_EVENT_PRIMITI 150 if (id.primitive <= SCTP_EVENT_PRIMITIVE_MAX)
130 return sctp_primitive_tbl[id.p 151 return sctp_primitive_tbl[id.primitive];
131 return "unknown_primitive"; 152 return "unknown_primitive";
132 } 153 }
133 154
134 static const char *const sctp_other_tbl[] = { !! 155 static const char *sctp_other_tbl[] = {
135 "NO_PENDING_TSN", 156 "NO_PENDING_TSN",
136 "ICMP_PROTO_UNREACH", !! 157 "ICMP_PROTO_UNREACH",
137 }; 158 };
138 159
139 /* Lookup "other" debug name. */ 160 /* Lookup "other" debug name. */
140 const char *sctp_oname(const union sctp_subtyp !! 161 const char *sctp_oname(const sctp_subtype_t id)
141 { 162 {
>> 163 if (id.other < 0)
>> 164 return "illegal 'other' event";
142 if (id.other <= SCTP_EVENT_OTHER_MAX) 165 if (id.other <= SCTP_EVENT_OTHER_MAX)
143 return sctp_other_tbl[id.other 166 return sctp_other_tbl[id.other];
144 return "unknown 'other' event"; 167 return "unknown 'other' event";
145 } 168 }
146 169
147 static const char *const sctp_timer_tbl[] = { !! 170 static const char *sctp_timer_tbl[] = {
148 "TIMEOUT_NONE", 171 "TIMEOUT_NONE",
149 "TIMEOUT_T1_COOKIE", 172 "TIMEOUT_T1_COOKIE",
150 "TIMEOUT_T1_INIT", 173 "TIMEOUT_T1_INIT",
151 "TIMEOUT_T2_SHUTDOWN", 174 "TIMEOUT_T2_SHUTDOWN",
152 "TIMEOUT_T3_RTX", 175 "TIMEOUT_T3_RTX",
153 "TIMEOUT_T4_RTO", 176 "TIMEOUT_T4_RTO",
154 "TIMEOUT_T5_SHUTDOWN_GUARD", 177 "TIMEOUT_T5_SHUTDOWN_GUARD",
155 "TIMEOUT_HEARTBEAT", 178 "TIMEOUT_HEARTBEAT",
156 "TIMEOUT_RECONF", <<
157 "TIMEOUT_PROBE", <<
158 "TIMEOUT_SACK", 179 "TIMEOUT_SACK",
159 "TIMEOUT_AUTOCLOSE", 180 "TIMEOUT_AUTOCLOSE",
160 }; 181 };
161 182
162 /* Lookup timer debug name. */ 183 /* Lookup timer debug name. */
163 const char *sctp_tname(const union sctp_subtyp !! 184 const char *sctp_tname(const sctp_subtype_t id)
164 { 185 {
165 BUILD_BUG_ON(SCTP_EVENT_TIMEOUT_MAX + !! 186 if (id.timeout < 0)
166 !! 187 return "illegal 'timer' event";
167 if (id.timeout < ARRAY_SIZE(sctp_timer !! 188 if (id.timeout <= SCTP_EVENT_TIMEOUT_MAX)
168 return sctp_timer_tbl[id.timeo 189 return sctp_timer_tbl[id.timeout];
169 return "unknown_timer"; 190 return "unknown_timer";
170 } 191 }
171 192
Linux® is a registered trademark of Linus Torvalds in the United States and other countries.
TOMOYO® is a registered trademark of NTT DATA CORPORATION.