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Vlad Yasevich60c778b2008-01-11 09:57:09 -05001/* SCTP kernel implementation
Linus Torvalds1da177e2005-04-16 15:20:36 -07002 * (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.
YOSHIFUJI Hideakid808ad92007-02-09 23:25:18 +09006 *
Vlad Yasevich60c778b2008-01-11 09:57:09 -05007 * This file is part of the SCTP kernel implementation
YOSHIFUJI Hideakid808ad92007-02-09 23:25:18 +09008 *
Linus Torvalds1da177e2005-04-16 15:20:36 -07009 * This file converts numerical ID value to alphabetical names for SCTP
10 * terms such as chunk type, parameter time, event type, etc.
YOSHIFUJI Hideakid808ad92007-02-09 23:25:18 +090011 *
Vlad Yasevich60c778b2008-01-11 09:57:09 -050012 * This SCTP implementation is free software;
YOSHIFUJI Hideakid808ad92007-02-09 23:25:18 +090013 * you can redistribute it and/or modify it under the terms of
Linus Torvalds1da177e2005-04-16 15:20:36 -070014 * the GNU General Public License as published by
15 * the Free Software Foundation; either version 2, or (at your option)
16 * any later version.
YOSHIFUJI Hideakid808ad92007-02-09 23:25:18 +090017 *
Vlad Yasevich60c778b2008-01-11 09:57:09 -050018 * This SCTP implementation is distributed in the hope that it
Linus Torvalds1da177e2005-04-16 15:20:36 -070019 * 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.
YOSHIFUJI Hideakid808ad92007-02-09 23:25:18 +090023 *
Linus Torvalds1da177e2005-04-16 15:20:36 -070024 * 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,
YOSHIFUJI Hideakid808ad92007-02-09 23:25:18 +090027 * Boston, MA 02111-1307, USA.
28 *
Linus Torvalds1da177e2005-04-16 15:20:36 -070029 * Please send any bug reports or fixes you make to the
30 * email address(es):
31 * lksctp developers <lksctp-developers@lists.sourceforge.net>
YOSHIFUJI Hideakid808ad92007-02-09 23:25:18 +090032 *
Linus Torvalds1da177e2005-04-16 15:20:36 -070033 * Or submit a bug report through the following website:
34 * http://www.sf.net/projects/lksctp
35 *
YOSHIFUJI Hideakid808ad92007-02-09 23:25:18 +090036 * Written or modified by:
Linus Torvalds1da177e2005-04-16 15:20:36 -070037 * La Monte H.P. Yarroll <piggy@acm.org>
38 * Karl Knutson <karl@athena.chicago.il.us>
39 * Xingang Guo <xingang.guo@intel.com>
40 * Jon Grimm <jgrimm@us.ibm.com>
41 * Daisy Chang <daisyc@us.ibm.com>
42 * Sridhar Samudrala <sri@us.ibm.com>
YOSHIFUJI Hideakid808ad92007-02-09 23:25:18 +090043 *
Linus Torvalds1da177e2005-04-16 15:20:36 -070044 * Any bugs reported given to us we will try to fix... any fixes shared will
45 * be incorporated into the next SCTP release.
46 */
47
48#include <net/sctp/sctp.h>
49
50#if SCTP_DEBUG
51int sctp_debug_flag = 1; /* Initially enable DEBUG */
52#endif /* SCTP_DEBUG */
53
54/* These are printable forms of Chunk ID's from section 3.1. */
55static const char *sctp_cid_tbl[SCTP_NUM_BASE_CHUNK_TYPES] = {
56 "DATA",
57 "INIT",
58 "INIT_ACK",
59 "SACK",
60 "HEARTBEAT",
61 "HEARTBEAT_ACK",
62 "ABORT",
63 "SHUTDOWN",
64 "SHUTDOWN_ACK",
65 "ERROR",
66 "COOKIE_ECHO",
67 "COOKIE_ACK",
68 "ECN_ECNE",
69 "ECN_CWR",
70 "SHUTDOWN_COMPLETE",
71};
72
73/* Lookup "chunk type" debug name. */
74const char *sctp_cname(const sctp_subtype_t cid)
75{
Linus Torvalds1da177e2005-04-16 15:20:36 -070076 if (cid.chunk <= SCTP_CID_BASE_MAX)
77 return sctp_cid_tbl[cid.chunk];
YOSHIFUJI Hideakid808ad92007-02-09 23:25:18 +090078
Linus Torvalds1da177e2005-04-16 15:20:36 -070079 switch (cid.chunk) {
80 case SCTP_CID_ASCONF:
81 return "ASCONF";
82
83 case SCTP_CID_ASCONF_ACK:
84 return "ASCONF_ACK";
85
86 case SCTP_CID_FWD_TSN:
87 return "FWD_TSN";
88
89 default:
Stephen Hemminger3ff50b72007-04-20 17:09:22 -070090 break;
91 }
92
Linus Torvalds1da177e2005-04-16 15:20:36 -070093 return "unknown chunk";
94}
95
96/* These are printable forms of the states. */
97const char *sctp_state_tbl[SCTP_STATE_NUM_STATES] = {
98 "STATE_EMPTY",
99 "STATE_CLOSED",
100 "STATE_COOKIE_WAIT",
101 "STATE_COOKIE_ECHOED",
102 "STATE_ESTABLISHED",
103 "STATE_SHUTDOWN_PENDING",
104 "STATE_SHUTDOWN_SENT",
105 "STATE_SHUTDOWN_RECEIVED",
106 "STATE_SHUTDOWN_ACK_SENT",
107};
108
109/* Events that could change the state of an association. */
110const char *sctp_evttype_tbl[] = {
111 "EVENT_T_unknown",
112 "EVENT_T_CHUNK",
113 "EVENT_T_TIMEOUT",
114 "EVENT_T_OTHER",
115 "EVENT_T_PRIMITIVE"
116};
117
118/* Return value of a state function */
119const char *sctp_status_tbl[] = {
120 "DISPOSITION_DISCARD",
121 "DISPOSITION_CONSUME",
122 "DISPOSITION_NOMEM",
123 "DISPOSITION_DELETE_TCB",
124 "DISPOSITION_ABORT",
125 "DISPOSITION_VIOLATION",
126 "DISPOSITION_NOT_IMPL",
127 "DISPOSITION_ERROR",
128 "DISPOSITION_BUG"
129};
130
131/* Printable forms of primitives */
132static const char *sctp_primitive_tbl[SCTP_NUM_PRIMITIVE_TYPES] = {
133 "PRIMITIVE_ASSOCIATE",
134 "PRIMITIVE_SHUTDOWN",
135 "PRIMITIVE_ABORT",
136 "PRIMITIVE_SEND",
137 "PRIMITIVE_REQUESTHEARTBEAT",
138};
139
140/* Lookup primitive debug name. */
141const char *sctp_pname(const sctp_subtype_t id)
142{
Linus Torvalds1da177e2005-04-16 15:20:36 -0700143 if (id.primitive <= SCTP_EVENT_PRIMITIVE_MAX)
144 return sctp_primitive_tbl[id.primitive];
145 return "unknown_primitive";
146}
147
148static const char *sctp_other_tbl[] = {
149 "NO_PENDING_TSN",
YOSHIFUJI Hideakid808ad92007-02-09 23:25:18 +0900150 "ICMP_PROTO_UNREACH",
Linus Torvalds1da177e2005-04-16 15:20:36 -0700151};
152
153/* Lookup "other" debug name. */
154const char *sctp_oname(const sctp_subtype_t id)
155{
Linus Torvalds1da177e2005-04-16 15:20:36 -0700156 if (id.other <= SCTP_EVENT_OTHER_MAX)
157 return sctp_other_tbl[id.other];
158 return "unknown 'other' event";
159}
160
161static const char *sctp_timer_tbl[] = {
162 "TIMEOUT_NONE",
163 "TIMEOUT_T1_COOKIE",
164 "TIMEOUT_T1_INIT",
165 "TIMEOUT_T2_SHUTDOWN",
166 "TIMEOUT_T3_RTX",
167 "TIMEOUT_T4_RTO",
168 "TIMEOUT_T5_SHUTDOWN_GUARD",
169 "TIMEOUT_HEARTBEAT",
170 "TIMEOUT_SACK",
171 "TIMEOUT_AUTOCLOSE",
172};
173
174/* Lookup timer debug name. */
175const char *sctp_tname(const sctp_subtype_t id)
176{
Linus Torvalds1da177e2005-04-16 15:20:36 -0700177 if (id.timeout <= SCTP_EVENT_TIMEOUT_MAX)
178 return sctp_timer_tbl[id.timeout];
179 return "unknown_timer";
180}