summaryrefslogtreecommitdiff
path: root/net/sctp/debug.c
blob: 67715f4eb8495e49fa3eb21fa33a96bf80c51514 (plain) (blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
/* SCTP kernel implementation
 * (C) Copyright IBM Corp. 2001, 2004
 * Copyright (c) 1999-2000 Cisco, Inc.
 * Copyright (c) 1999-2001 Motorola, Inc.
 * Copyright (c) 2001 Intel Corp.
 *
 * This file is part of the SCTP kernel implementation
 *
 * This file converts numerical ID value to alphabetical names for SCTP
 * terms such as chunk type, parameter time, event type, etc.
 *
 * This SCTP implementation is free software;
 * you can redistribute it and/or modify it under the terms of
 * the GNU General Public License as published by
 * the Free Software Foundation; either version 2, or (at your option)
 * any later version.
 *
 * This SCTP implementation is distributed in the hope that it
 * will be useful, but WITHOUT ANY WARRANTY; without even the implied
 *                 ************************
 * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
 * See the GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with GNU CC; see the file COPYING.  If not, write to
 * the Free Software Foundation, 59 Temple Place - Suite 330,
 * Boston, MA 02111-1307, USA.
 *
 * Please send any bug reports or fixes you make to the
 * email address(es):
 *    lksctp developers <lksctp-developers@lists.sourceforge.net>
 *
 * Or submit a bug report through the following website:
 *    http://www.sf.net/projects/lksctp
 *
 * Written or modified by:
 *    La Monte H.P. Yarroll <piggy@acm.org>
 *    Karl Knutson          <karl@athena.chicago.il.us>
 *    Xingang Guo           <xingang.guo@intel.com>
 *    Jon Grimm             <jgrimm@us.ibm.com>
 *    Daisy Chang	    <daisyc@us.ibm.com>
 *    Sridhar Samudrala	    <sri@us.ibm.com>
 *
 * Any bugs reported given to us we will try to fix... any fixes shared will
 * be incorporated into the next SCTP release.
 */

#include <net/sctp/sctp.h>

#if SCTP_DEBUG
int sctp_debug_flag = 1;	/* Initially enable DEBUG */
#endif	/* SCTP_DEBUG */

/* These are printable forms of Chunk ID's from section 3.1.  */
static const char *sctp_cid_tbl[SCTP_NUM_BASE_CHUNK_TYPES] = {
	"DATA",
	"INIT",
	"INIT_ACK",
	"SACK",
	"HEARTBEAT",
	"HEARTBEAT_ACK",
	"ABORT",
	"SHUTDOWN",
	"SHUTDOWN_ACK",
	"ERROR",
	"COOKIE_ECHO",
	"COOKIE_ACK",
	"ECN_ECNE",
	"ECN_CWR",
	"SHUTDOWN_COMPLETE",
};

/* Lookup "chunk type" debug name. */
const char *sctp_cname(const sctp_subtype_t cid)
{
	if (cid.chunk <= SCTP_CID_BASE_MAX)
		return sctp_cid_tbl[cid.chunk];

	switch (cid.chunk) {
	case SCTP_CID_ASCONF:
		return "ASCONF";

	case SCTP_CID_ASCONF_ACK:
		return "ASCONF_ACK";

	case SCTP_CID_FWD_TSN:
		return "FWD_TSN";

	default:
		break;
	}

	return "unknown chunk";
}

/* These are printable forms of the states.  */
const char *sctp_state_tbl[SCTP_STATE_NUM_STATES] = {
	"STATE_EMPTY",
	"STATE_CLOSED",
	"STATE_COOKIE_WAIT",
	"STATE_COOKIE_ECHOED",
	"STATE_ESTABLISHED",
	"STATE_SHUTDOWN_PENDING",
	"STATE_SHUTDOWN_SENT",
	"STATE_SHUTDOWN_RECEIVED",
	"STATE_SHUTDOWN_ACK_SENT",
};

/* Events that could change the state of an association.  */
const char *sctp_evttype_tbl[] = {
	"EVENT_T_unknown",
	"EVENT_T_CHUNK",
	"EVENT_T_TIMEOUT",
	"EVENT_T_OTHER",
	"EVENT_T_PRIMITIVE"
};

/* Return value of a state function */
const char *sctp_status_tbl[] = {
	"DISPOSITION_DISCARD",
	"DISPOSITION_CONSUME",
	"DISPOSITION_NOMEM",
	"DISPOSITION_DELETE_TCB",
	"DISPOSITION_ABORT",
	"DISPOSITION_VIOLATION",
	"DISPOSITION_NOT_IMPL",
	"DISPOSITION_ERROR",
	"DISPOSITION_BUG"
};

/* Printable forms of primitives */
static const char *sctp_primitive_tbl[SCTP_NUM_PRIMITIVE_TYPES] = {
	"PRIMITIVE_ASSOCIATE",
	"PRIMITIVE_SHUTDOWN",
	"PRIMITIVE_ABORT",
	"PRIMITIVE_SEND",
	"PRIMITIVE_REQUESTHEARTBEAT",
};

/* Lookup primitive debug name. */
const char *sctp_pname(const sctp_subtype_t id)
{
	if (id.primitive <= SCTP_EVENT_PRIMITIVE_MAX)
		return sctp_primitive_tbl[id.primitive];
	return "unknown_primitive";
}

static const char *sctp_other_tbl[] = {
	"NO_PENDING_TSN",
	"ICMP_PROTO_UNREACH",
};

/* Lookup "other" debug name. */
const char *sctp_oname(const sctp_subtype_t id)
{
	if (id.other <= SCTP_EVENT_OTHER_MAX)
		return sctp_other_tbl[id.other];
	return "unknown 'other' event";
}

static const char *sctp_timer_tbl[] = {
	"TIMEOUT_NONE",
	"TIMEOUT_T1_COOKIE",
	"TIMEOUT_T1_INIT",
	"TIMEOUT_T2_SHUTDOWN",
	"TIMEOUT_T3_RTX",
	"TIMEOUT_T4_RTO",
	"TIMEOUT_T5_SHUTDOWN_GUARD",
	"TIMEOUT_HEARTBEAT",
	"TIMEOUT_SACK",
	"TIMEOUT_AUTOCLOSE",
};

/* Lookup timer debug name. */
const char *sctp_tname(const sctp_subtype_t id)
{
	if (id.timeout <= SCTP_EVENT_TIMEOUT_MAX)
		return sctp_timer_tbl[id.timeout];
	return "unknown_timer";
}