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
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 *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. */
74const 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.  */
100const 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.  */
113const 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 */
122const 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 */
135static 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. */
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 *const 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 *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. */
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