1 /* SCTP kernel reference Implementation
2 * (C) Copyright IBM Corp. 2001, 2004
3 * Copyright (c) 1999-2000 Cisco, Inc.
4 * Copyright (c) 1999-2001 Motorola, Inc.
5 * Copyright (c) 2001 Intel Corp.
6 *
7 * This file is part of the SCTP kernel reference Implementation
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 *
13 * This file converts numerical ID value to alphabetical names for SCTP
14 * terms such as chunk type, parameter time, event type, etc.
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 *
33 * Please send any bug reports or fixes you make to the
34 * email address(es):
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
39 *
40 * Written or modified by:
41 * La Monte H.P. Yarroll <piggy@acm.org>
42 * Karl Knutson <karl@athena.chicago.il.us>
43 * Xingang Guo <xingang.guo@intel.com>
44 * Jon Grimm <jgrimm@us.ibm.com>
45 * Daisy Chang <daisyc@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.
50 */
51
52 #include <net/sctp/sctp.h>
53
54 #if SCTP_DEBUG
55 int sctp_debug_flag = 1; /* Initially enable DEBUG */
56 #endif /* SCTP_DEBUG */
57
58 /* These are printable forms of Chunk ID's from section 3.1. */
59 static const char *sctp_cid_tbl[SCTP_NUM_BASE_CHUNK_TYPES] = {
60 "DATA",
61 "INIT",
62 "INIT_ACK",
63 "SACK",
64 "HEARTBEAT",
65 "HEARTBEAT_ACK",
66 "ABORT",
67 "SHUTDOWN",
68 "SHUTDOWN_ACK",
69 "ERROR",
70 "COOKIE_ECHO",
71 "COOKIE_ACK",
72 "ECN_ECNE",
73 "ECN_CWR",
74 "SHUTDOWN_COMPLETE",
75 };
76
77 /* Lookup "chunk type" debug name. */
sctp_cname(const sctp_subtype_t cid)78 const char *sctp_cname(const sctp_subtype_t cid)
79 {
80 if (cid.chunk < 0)
81 return "illegal chunk id";
82 if (cid.chunk <= SCTP_CID_BASE_MAX)
83 return sctp_cid_tbl[cid.chunk];
84
85 switch (cid.chunk) {
86 case SCTP_CID_ASCONF:
87 return "ASCONF";
88
89 case SCTP_CID_ASCONF_ACK:
90 return "ASCONF_ACK";
91
92 case SCTP_CID_FWD_TSN:
93 return "FWD_TSN";
94
95 default:
96 return "unknown chunk";
97 };
98 return "unknown chunk";
99 }
100
101 /* These are printable forms of the states. */
102 const char *sctp_state_tbl[SCTP_STATE_NUM_STATES] = {
103 "STATE_EMPTY",
104 "STATE_CLOSED",
105 "STATE_COOKIE_WAIT",
106 "STATE_COOKIE_ECHOED",
107 "STATE_ESTABLISHED",
108 "STATE_SHUTDOWN_PENDING",
109 "STATE_SHUTDOWN_SENT",
110 "STATE_SHUTDOWN_RECEIVED",
111 "STATE_SHUTDOWN_ACK_SENT",
112 };
113
114 /* Events that could change the state of an association. */
115 const char *sctp_evttype_tbl[] = {
116 "EVENT_T_unknown",
117 "EVENT_T_CHUNK",
118 "EVENT_T_TIMEOUT",
119 "EVENT_T_OTHER",
120 "EVENT_T_PRIMITIVE"
121 };
122
123 /* Return value of a state function */
124 const char *sctp_status_tbl[] = {
125 "DISPOSITION_DISCARD",
126 "DISPOSITION_CONSUME",
127 "DISPOSITION_NOMEM",
128 "DISPOSITION_DELETE_TCB",
129 "DISPOSITION_ABORT",
130 "DISPOSITION_VIOLATION",
131 "DISPOSITION_NOT_IMPL",
132 "DISPOSITION_ERROR",
133 "DISPOSITION_BUG"
134 };
135
136 /* Printable forms of primitives */
137 static const char *sctp_primitive_tbl[SCTP_NUM_PRIMITIVE_TYPES] = {
138 "PRIMITIVE_ASSOCIATE",
139 "PRIMITIVE_SHUTDOWN",
140 "PRIMITIVE_ABORT",
141 "PRIMITIVE_SEND",
142 "PRIMITIVE_REQUESTHEARTBEAT",
143 };
144
145 /* Lookup primitive debug name. */
sctp_pname(const sctp_subtype_t id)146 const char *sctp_pname(const sctp_subtype_t id)
147 {
148 if (id.primitive < 0)
149 return "illegal primitive";
150 if (id.primitive <= SCTP_EVENT_PRIMITIVE_MAX)
151 return sctp_primitive_tbl[id.primitive];
152 return "unknown_primitive";
153 }
154
155 static const char *sctp_other_tbl[] = {
156 "NO_PENDING_TSN",
157 "ICMP_PROTO_UNREACH",
158 };
159
160 /* Lookup "other" debug name. */
sctp_oname(const sctp_subtype_t id)161 const char *sctp_oname(const sctp_subtype_t id)
162 {
163 if (id.other < 0)
164 return "illegal 'other' event";
165 if (id.other <= SCTP_EVENT_OTHER_MAX)
166 return sctp_other_tbl[id.other];
167 return "unknown 'other' event";
168 }
169
170 static const char *sctp_timer_tbl[] = {
171 "TIMEOUT_NONE",
172 "TIMEOUT_T1_COOKIE",
173 "TIMEOUT_T1_INIT",
174 "TIMEOUT_T2_SHUTDOWN",
175 "TIMEOUT_T3_RTX",
176 "TIMEOUT_T4_RTO",
177 "TIMEOUT_T5_SHUTDOWN_GUARD",
178 "TIMEOUT_HEARTBEAT",
179 "TIMEOUT_SACK",
180 "TIMEOUT_AUTOCLOSE",
181 };
182
183 /* Lookup timer debug name. */
sctp_tname(const sctp_subtype_t id)184 const char *sctp_tname(const sctp_subtype_t id)
185 {
186 if (id.timeout < 0)
187 return "illegal 'timer' event";
188 if (id.timeout <= SCTP_EVENT_TIMEOUT_MAX)
189 return sctp_timer_tbl[id.timeout];
190 return "unknown_timer";
191 }
192