sctp: remove dup code in net/sctp/socket.c
[linux-2.6.git] / net / sctp / debug.c
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
51 int 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.  */
55 static const char *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. */
74 const 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.  */
100 const char *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.  */
113 const char *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 */
122 const char *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 */
135 static const char *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. */
145 const 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
152 static const char *sctp_other_tbl[] = {
153         "NO_PENDING_TSN",
154         "ICMP_PROTO_UNREACH",
155 };
156
157 /* Lookup "other" debug name. */
158 const 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
165 static 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. */
179 const 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 }