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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 <linux-sctp@vger.kernel.org>
32 *
33 * Written or modified by:
34 * La Monte H.P. Yarroll <piggy@acm.org>
35 * Karl Knutson <karl@athena.chicago.il.us>
36 * Xingang Guo <xingang.guo@intel.com>
37 * Jon Grimm <jgrimm@us.ibm.com>
38 * Daisy Chang <daisyc@us.ibm.com>
39 * Sridhar Samudrala <sri@us.ibm.com>
40 */
41
42#include <net/sctp/sctp.h>
43
44/* These are printable forms of Chunk ID's from section 3.1. */
45static const char *const sctp_cid_tbl[SCTP_NUM_BASE_CHUNK_TYPES] = {
46 "DATA",
47 "INIT",
48 "INIT_ACK",
49 "SACK",
50 "HEARTBEAT",
51 "HEARTBEAT_ACK",
52 "ABORT",
53 "SHUTDOWN",
54 "SHUTDOWN_ACK",
55 "ERROR",
56 "COOKIE_ECHO",
57 "COOKIE_ACK",
58 "ECN_ECNE",
59 "ECN_CWR",
60 "SHUTDOWN_COMPLETE",
61};
62
63/* Lookup "chunk type" debug name. */
64const char *sctp_cname(const sctp_subtype_t cid)
65{
66 if (cid.chunk <= SCTP_CID_BASE_MAX)
67 return sctp_cid_tbl[cid.chunk];
68
69 switch (cid.chunk) {
70 case SCTP_CID_ASCONF:
71 return "ASCONF";
72
73 case SCTP_CID_ASCONF_ACK:
74 return "ASCONF_ACK";
75
76 case SCTP_CID_FWD_TSN:
77 return "FWD_TSN";
78
79 case SCTP_CID_AUTH:
80 return "AUTH";
81
82 default:
83 break;
84 }
85
86 return "unknown chunk";
87}
88
89/* These are printable forms of the states. */
90const char *const sctp_state_tbl[SCTP_STATE_NUM_STATES] = {
91 "STATE_CLOSED",
92 "STATE_COOKIE_WAIT",
93 "STATE_COOKIE_ECHOED",
94 "STATE_ESTABLISHED",
95 "STATE_SHUTDOWN_PENDING",
96 "STATE_SHUTDOWN_SENT",
97 "STATE_SHUTDOWN_RECEIVED",
98 "STATE_SHUTDOWN_ACK_SENT",
99};
100
101/* Events that could change the state of an association. */
102const char *const sctp_evttype_tbl[] = {
103 "EVENT_T_unknown",
104 "EVENT_T_CHUNK",
105 "EVENT_T_TIMEOUT",
106 "EVENT_T_OTHER",
107 "EVENT_T_PRIMITIVE"
108};
109
110/* Return value of a state function */
111const char *const sctp_status_tbl[] = {
112 "DISPOSITION_DISCARD",
113 "DISPOSITION_CONSUME",
114 "DISPOSITION_NOMEM",
115 "DISPOSITION_DELETE_TCB",
116 "DISPOSITION_ABORT",
117 "DISPOSITION_VIOLATION",
118 "DISPOSITION_NOT_IMPL",
119 "DISPOSITION_ERROR",
120 "DISPOSITION_BUG"
121};
122
123/* Printable forms of primitives */
124static const char *const sctp_primitive_tbl[SCTP_NUM_PRIMITIVE_TYPES] = {
125 "PRIMITIVE_ASSOCIATE",
126 "PRIMITIVE_SHUTDOWN",
127 "PRIMITIVE_ABORT",
128 "PRIMITIVE_SEND",
129 "PRIMITIVE_REQUESTHEARTBEAT",
130 "PRIMITIVE_ASCONF",
131};
132
133/* Lookup primitive debug name. */
134const char *sctp_pname(const sctp_subtype_t id)
135{
136 if (id.primitive <= SCTP_EVENT_PRIMITIVE_MAX)
137 return sctp_primitive_tbl[id.primitive];
138 return "unknown_primitive";
139}
140
141static const char *const sctp_other_tbl[] = {
142 "NO_PENDING_TSN",
143 "ICMP_PROTO_UNREACH",
144};
145
146/* Lookup "other" debug name. */
147const char *sctp_oname(const sctp_subtype_t id)
148{
149 if (id.other <= SCTP_EVENT_OTHER_MAX)
150 return sctp_other_tbl[id.other];
151 return "unknown 'other' event";
152}
153
154static const char *const sctp_timer_tbl[] = {
155 "TIMEOUT_NONE",
156 "TIMEOUT_T1_COOKIE",
157 "TIMEOUT_T1_INIT",
158 "TIMEOUT_T2_SHUTDOWN",
159 "TIMEOUT_T3_RTX",
160 "TIMEOUT_T4_RTO",
161 "TIMEOUT_T5_SHUTDOWN_GUARD",
162 "TIMEOUT_HEARTBEAT",
163 "TIMEOUT_SACK",
164 "TIMEOUT_AUTOCLOSE",
165};
166
167/* Lookup timer debug name. */
168const char *sctp_tname(const sctp_subtype_t id)
169{
170 if (id.timeout <= SCTP_EVENT_TIMEOUT_MAX)
171 return sctp_timer_tbl[id.timeout];
172 return "unknown_timer";
173}