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