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, see
26 * <http://www.gnu.org/licenses/>.
27 *
28 * Please send any bug reports or fixes you make to the
29 * email address(es):
30 *    lksctp developers <linux-sctp@vger.kernel.org>
31 *
32 * Written or modified by:
33 *    La Monte H.P. Yarroll <piggy@acm.org>
34 *    Karl Knutson          <karl@athena.chicago.il.us>
35 *    Xingang Guo           <xingang.guo@intel.com>
36 *    Jon Grimm             <jgrimm@us.ibm.com>
37 *    Daisy Chang	    <daisyc@us.ibm.com>
38 *    Sridhar Samudrala	    <sri@us.ibm.com>
39 */
40
41#include <net/sctp/sctp.h>
42
43/* These are printable forms of Chunk ID's from section 3.1.  */
44static const char *const sctp_cid_tbl[SCTP_NUM_BASE_CHUNK_TYPES] = {
45	"DATA",
46	"INIT",
47	"INIT_ACK",
48	"SACK",
49	"HEARTBEAT",
50	"HEARTBEAT_ACK",
51	"ABORT",
52	"SHUTDOWN",
53	"SHUTDOWN_ACK",
54	"ERROR",
55	"COOKIE_ECHO",
56	"COOKIE_ACK",
57	"ECN_ECNE",
58	"ECN_CWR",
59	"SHUTDOWN_COMPLETE",
60};
61
62/* Lookup "chunk type" debug name. */
63const char *sctp_cname(const sctp_subtype_t cid)
64{
65	if (cid.chunk <= SCTP_CID_BASE_MAX)
66		return sctp_cid_tbl[cid.chunk];
67
68	switch (cid.chunk) {
69	case SCTP_CID_ASCONF:
70		return "ASCONF";
71
72	case SCTP_CID_ASCONF_ACK:
73		return "ASCONF_ACK";
74
75	case SCTP_CID_FWD_TSN:
76		return "FWD_TSN";
77
78	case SCTP_CID_AUTH:
79		return "AUTH";
80
81	default:
82		break;
83	}
84
85	return "unknown chunk";
86}
87
88/* These are printable forms of the states.  */
89const char *const sctp_state_tbl[SCTP_STATE_NUM_STATES] = {
90	"STATE_CLOSED",
91	"STATE_COOKIE_WAIT",
92	"STATE_COOKIE_ECHOED",
93	"STATE_ESTABLISHED",
94	"STATE_SHUTDOWN_PENDING",
95	"STATE_SHUTDOWN_SENT",
96	"STATE_SHUTDOWN_RECEIVED",
97	"STATE_SHUTDOWN_ACK_SENT",
98};
99
100/* Events that could change the state of an association.  */
101const char *const sctp_evttype_tbl[] = {
102	"EVENT_T_unknown",
103	"EVENT_T_CHUNK",
104	"EVENT_T_TIMEOUT",
105	"EVENT_T_OTHER",
106	"EVENT_T_PRIMITIVE"
107};
108
109/* Return value of a state function */
110const char *const sctp_status_tbl[] = {
111	"DISPOSITION_DISCARD",
112	"DISPOSITION_CONSUME",
113	"DISPOSITION_NOMEM",
114	"DISPOSITION_DELETE_TCB",
115	"DISPOSITION_ABORT",
116	"DISPOSITION_VIOLATION",
117	"DISPOSITION_NOT_IMPL",
118	"DISPOSITION_ERROR",
119	"DISPOSITION_BUG"
120};
121
122/* Printable forms of primitives */
123static const char *const sctp_primitive_tbl[SCTP_NUM_PRIMITIVE_TYPES] = {
124	"PRIMITIVE_ASSOCIATE",
125	"PRIMITIVE_SHUTDOWN",
126	"PRIMITIVE_ABORT",
127	"PRIMITIVE_SEND",
128	"PRIMITIVE_REQUESTHEARTBEAT",
129	"PRIMITIVE_ASCONF",
130};
131
132/* Lookup primitive debug name. */
133const char *sctp_pname(const sctp_subtype_t id)
134{
135	if (id.primitive <= SCTP_EVENT_PRIMITIVE_MAX)
136		return sctp_primitive_tbl[id.primitive];
137	return "unknown_primitive";
138}
139
140static const char *const sctp_other_tbl[] = {
141	"NO_PENDING_TSN",
142	"ICMP_PROTO_UNREACH",
143};
144
145/* Lookup "other" debug name. */
146const char *sctp_oname(const sctp_subtype_t id)
147{
148	if (id.other <= SCTP_EVENT_OTHER_MAX)
149		return sctp_other_tbl[id.other];
150	return "unknown 'other' event";
151}
152
153static const char *const sctp_timer_tbl[] = {
154	"TIMEOUT_NONE",
155	"TIMEOUT_T1_COOKIE",
156	"TIMEOUT_T1_INIT",
157	"TIMEOUT_T2_SHUTDOWN",
158	"TIMEOUT_T3_RTX",
159	"TIMEOUT_T4_RTO",
160	"TIMEOUT_T5_SHUTDOWN_GUARD",
161	"TIMEOUT_HEARTBEAT",
162	"TIMEOUT_SACK",
163	"TIMEOUT_AUTOCLOSE",
164};
165
166/* Lookup timer debug name. */
167const char *sctp_tname(const sctp_subtype_t id)
168{
169	if (id.timeout <= SCTP_EVENT_TIMEOUT_MAX)
170		return sctp_timer_tbl[id.timeout];
171	return "unknown_timer";
172}
173