1 /* SCTP kernel 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 implementation
8 *
9 * This file converts numerical ID value to alphabetical names for SCTP
10 * terms such as chunk type, parameter time, event type, etc.
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 *
29 * Please send any bug reports or fixes you make to the
30 * email address(es):
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
35 *
36 * Written or modified by:
37 * 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>
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.
46 */
47
48 #include <net/sctp/sctp.h>
49
50 #if SCTP_DEBUG
51 int 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. */
55 static const char *const 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. */
sctp_cname(const sctp_subtype_t cid)74 const char *sctp_cname(const sctp_subtype_t cid)
75 {
76 if (cid.chunk <= SCTP_CID_BASE_MAX)
77 return sctp_cid_tbl[cid.chunk];
78
79 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 case SCTP_CID_AUTH:
90 return "AUTH";
91
92 default:
93 break;
94 }
95
96 return "unknown chunk";
97 }
98
99 /* These are printable forms of the states. */
100 const char *const sctp_state_tbl[SCTP_STATE_NUM_STATES] = {
101 "STATE_EMPTY",
102 "STATE_CLOSED",
103 "STATE_COOKIE_WAIT",
104 "STATE_COOKIE_ECHOED",
105 "STATE_ESTABLISHED",
106 "STATE_SHUTDOWN_PENDING",
107 "STATE_SHUTDOWN_SENT",
108 "STATE_SHUTDOWN_RECEIVED",
109 "STATE_SHUTDOWN_ACK_SENT",
110 };
111
112 /* Events that could change the state of an association. */
113 const char *const sctp_evttype_tbl[] = {
114 "EVENT_T_unknown",
115 "EVENT_T_CHUNK",
116 "EVENT_T_TIMEOUT",
117 "EVENT_T_OTHER",
118 "EVENT_T_PRIMITIVE"
119 };
120
121 /* Return value of a state function */
122 const char *const sctp_status_tbl[] = {
123 "DISPOSITION_DISCARD",
124 "DISPOSITION_CONSUME",
125 "DISPOSITION_NOMEM",
126 "DISPOSITION_DELETE_TCB",
127 "DISPOSITION_ABORT",
128 "DISPOSITION_VIOLATION",
129 "DISPOSITION_NOT_IMPL",
130 "DISPOSITION_ERROR",
131 "DISPOSITION_BUG"
132 };
133
134 /* Printable forms of primitives */
135 static const char *const sctp_primitive_tbl[SCTP_NUM_PRIMITIVE_TYPES] = {
136 "PRIMITIVE_ASSOCIATE",
137 "PRIMITIVE_SHUTDOWN",
138 "PRIMITIVE_ABORT",
139 "PRIMITIVE_SEND",
140 "PRIMITIVE_REQUESTHEARTBEAT",
141 "PRIMITIVE_ASCONF",
142 };
143
144 /* Lookup primitive debug name. */
sctp_pname(const sctp_subtype_t id)145 const char *sctp_pname(const sctp_subtype_t id)
146 {
147 if (id.primitive <= SCTP_EVENT_PRIMITIVE_MAX)
148 return sctp_primitive_tbl[id.primitive];
149 return "unknown_primitive";
150 }
151
152 static const char *const sctp_other_tbl[] = {
153 "NO_PENDING_TSN",
154 "ICMP_PROTO_UNREACH",
155 };
156
157 /* Lookup "other" debug name. */
sctp_oname(const sctp_subtype_t id)158 const char *sctp_oname(const sctp_subtype_t id)
159 {
160 if (id.other <= SCTP_EVENT_OTHER_MAX)
161 return sctp_other_tbl[id.other];
162 return "unknown 'other' event";
163 }
164
165 static const char *const sctp_timer_tbl[] = {
166 "TIMEOUT_NONE",
167 "TIMEOUT_T1_COOKIE",
168 "TIMEOUT_T1_INIT",
169 "TIMEOUT_T2_SHUTDOWN",
170 "TIMEOUT_T3_RTX",
171 "TIMEOUT_T4_RTO",
172 "TIMEOUT_T5_SHUTDOWN_GUARD",
173 "TIMEOUT_HEARTBEAT",
174 "TIMEOUT_SACK",
175 "TIMEOUT_AUTOCLOSE",
176 };
177
178 /* Lookup timer debug name. */
sctp_tname(const sctp_subtype_t id)179 const char *sctp_tname(const sctp_subtype_t id)
180 {
181 if (id.timeout <= SCTP_EVENT_TIMEOUT_MAX)
182 return sctp_timer_tbl[id.timeout];
183 return "unknown_timer";
184 }
185