netfilter: nf_conntrack: fix rt6i_gateway checks for H.323 helper
[linux-3.10.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 *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. */
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 *const sctp_state_tbl[SCTP_STATE_NUM_STATES] = {
101         "STATE_CLOSED",
102         "STATE_COOKIE_WAIT",
103         "STATE_COOKIE_ECHOED",
104         "STATE_ESTABLISHED",
105         "STATE_SHUTDOWN_PENDING",
106         "STATE_SHUTDOWN_SENT",
107         "STATE_SHUTDOWN_RECEIVED",
108         "STATE_SHUTDOWN_ACK_SENT",
109 };
110
111 /* Events that could change the state of an association.  */
112 const char *const sctp_evttype_tbl[] = {
113         "EVENT_T_unknown",
114         "EVENT_T_CHUNK",
115         "EVENT_T_TIMEOUT",
116         "EVENT_T_OTHER",
117         "EVENT_T_PRIMITIVE"
118 };
119
120 /* Return value of a state function */
121 const char *const sctp_status_tbl[] = {
122         "DISPOSITION_DISCARD",
123         "DISPOSITION_CONSUME",
124         "DISPOSITION_NOMEM",
125         "DISPOSITION_DELETE_TCB",
126         "DISPOSITION_ABORT",
127         "DISPOSITION_VIOLATION",
128         "DISPOSITION_NOT_IMPL",
129         "DISPOSITION_ERROR",
130         "DISPOSITION_BUG"
131 };
132
133 /* Printable forms of primitives */
134 static const char *const sctp_primitive_tbl[SCTP_NUM_PRIMITIVE_TYPES] = {
135         "PRIMITIVE_ASSOCIATE",
136         "PRIMITIVE_SHUTDOWN",
137         "PRIMITIVE_ABORT",
138         "PRIMITIVE_SEND",
139         "PRIMITIVE_REQUESTHEARTBEAT",
140         "PRIMITIVE_ASCONF",
141 };
142
143 /* Lookup primitive debug name. */
144 const char *sctp_pname(const sctp_subtype_t id)
145 {
146         if (id.primitive <= SCTP_EVENT_PRIMITIVE_MAX)
147                 return sctp_primitive_tbl[id.primitive];
148         return "unknown_primitive";
149 }
150
151 static const char *const sctp_other_tbl[] = {
152         "NO_PENDING_TSN",
153         "ICMP_PROTO_UNREACH",
154 };
155
156 /* Lookup "other" debug name. */
157 const char *sctp_oname(const sctp_subtype_t id)
158 {
159         if (id.other <= SCTP_EVENT_OTHER_MAX)
160                 return sctp_other_tbl[id.other];
161         return "unknown 'other' event";
162 }
163
164 static const char *const sctp_timer_tbl[] = {
165         "TIMEOUT_NONE",
166         "TIMEOUT_T1_COOKIE",
167         "TIMEOUT_T1_INIT",
168         "TIMEOUT_T2_SHUTDOWN",
169         "TIMEOUT_T3_RTX",
170         "TIMEOUT_T4_RTO",
171         "TIMEOUT_T5_SHUTDOWN_GUARD",
172         "TIMEOUT_HEARTBEAT",
173         "TIMEOUT_SACK",
174         "TIMEOUT_AUTOCLOSE",
175 };
176
177 /* Lookup timer debug name. */
178 const char *sctp_tname(const sctp_subtype_t id)
179 {
180         if (id.timeout <= SCTP_EVENT_TIMEOUT_MAX)
181                 return sctp_timer_tbl[id.timeout];
182         return "unknown_timer";
183 }