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
55int 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.  */
59static 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. */
78const char *sctp_cname(const sctp_subtype_t cid)
79{
80	if (cid.chunk <= SCTP_CID_BASE_MAX)
81		return sctp_cid_tbl[cid.chunk];
82
83	switch (cid.chunk) {
84	case SCTP_CID_ASCONF:
85		return "ASCONF";
86
87	case SCTP_CID_ASCONF_ACK:
88		return "ASCONF_ACK";
89
90	case SCTP_CID_FWD_TSN:
91		return "FWD_TSN";
92
93	default:
94		break;
95	}
96
97	return "unknown chunk";
98}
99
100/* These are printable forms of the states.  */
101const char *sctp_state_tbl[SCTP_STATE_NUM_STATES] = {
102	"STATE_EMPTY",
103	"STATE_CLOSED",
104	"STATE_COOKIE_WAIT",
105	"STATE_COOKIE_ECHOED",
106	"STATE_ESTABLISHED",
107	"STATE_SHUTDOWN_PENDING",
108	"STATE_SHUTDOWN_SENT",
109	"STATE_SHUTDOWN_RECEIVED",
110	"STATE_SHUTDOWN_ACK_SENT",
111};
112
113/* Events that could change the state of an association.  */
114const char *sctp_evttype_tbl[] = {
115	"EVENT_T_unknown",
116	"EVENT_T_CHUNK",
117	"EVENT_T_TIMEOUT",
118	"EVENT_T_OTHER",
119	"EVENT_T_PRIMITIVE"
120};
121
122/* Return value of a state function */
123const char *sctp_status_tbl[] = {
124	"DISPOSITION_DISCARD",
125	"DISPOSITION_CONSUME",
126	"DISPOSITION_NOMEM",
127	"DISPOSITION_DELETE_TCB",
128	"DISPOSITION_ABORT",
129	"DISPOSITION_VIOLATION",
130	"DISPOSITION_NOT_IMPL",
131	"DISPOSITION_ERROR",
132	"DISPOSITION_BUG"
133};
134
135/* Printable forms of primitives */
136static const char *sctp_primitive_tbl[SCTP_NUM_PRIMITIVE_TYPES] = {
137	"PRIMITIVE_ASSOCIATE",
138	"PRIMITIVE_SHUTDOWN",
139	"PRIMITIVE_ABORT",
140	"PRIMITIVE_SEND",
141	"PRIMITIVE_REQUESTHEARTBEAT",
142};
143
144/* Lookup primitive debug name. */
145const 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
152static const char *sctp_other_tbl[] = {
153	"NO_PENDING_TSN",
154	"ICMP_PROTO_UNREACH",
155};
156
157/* Lookup "other" debug name. */
158const 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
165static const char *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. */
179const 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