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. */ 44 static 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. */ 63 const char *sctp_cname(const union sctp_subtype 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 case SCTP_CID_RECONF: 82 return "RECONF"; 83 84 case SCTP_CID_I_DATA: 85 return "I_DATA"; 86 87 case SCTP_CID_I_FWD_TSN: 88 return "I_FWD_TSN"; 89 90 default: 91 break; 92 } 93 94 return "unknown chunk"; 95 } 96 97 /* These are printable forms of the states. */ 98 const char *const sctp_state_tbl[SCTP_STATE_NUM_STATES] = { 99 "STATE_CLOSED", 100 "STATE_COOKIE_WAIT", 101 "STATE_COOKIE_ECHOED", 102 "STATE_ESTABLISHED", 103 "STATE_SHUTDOWN_PENDING", 104 "STATE_SHUTDOWN_SENT", 105 "STATE_SHUTDOWN_RECEIVED", 106 "STATE_SHUTDOWN_ACK_SENT", 107 }; 108 109 /* Events that could change the state of an association. */ 110 const char *const sctp_evttype_tbl[] = { 111 "EVENT_T_unknown", 112 "EVENT_T_CHUNK", 113 "EVENT_T_TIMEOUT", 114 "EVENT_T_OTHER", 115 "EVENT_T_PRIMITIVE" 116 }; 117 118 /* Return value of a state function */ 119 const char *const sctp_status_tbl[] = { 120 "DISPOSITION_DISCARD", 121 "DISPOSITION_CONSUME", 122 "DISPOSITION_NOMEM", 123 "DISPOSITION_DELETE_TCB", 124 "DISPOSITION_ABORT", 125 "DISPOSITION_VIOLATION", 126 "DISPOSITION_NOT_IMPL", 127 "DISPOSITION_ERROR", 128 "DISPOSITION_BUG" 129 }; 130 131 /* Printable forms of primitives */ 132 static const char *const sctp_primitive_tbl[SCTP_NUM_PRIMITIVE_TYPES] = { 133 "PRIMITIVE_ASSOCIATE", 134 "PRIMITIVE_SHUTDOWN", 135 "PRIMITIVE_ABORT", 136 "PRIMITIVE_SEND", 137 "PRIMITIVE_REQUESTHEARTBEAT", 138 "PRIMITIVE_ASCONF", 139 }; 140 141 /* Lookup primitive debug name. */ 142 const char *sctp_pname(const union sctp_subtype id) 143 { 144 if (id.primitive <= SCTP_EVENT_PRIMITIVE_MAX) 145 return sctp_primitive_tbl[id.primitive]; 146 return "unknown_primitive"; 147 } 148 149 static const char *const sctp_other_tbl[] = { 150 "NO_PENDING_TSN", 151 "ICMP_PROTO_UNREACH", 152 }; 153 154 /* Lookup "other" debug name. */ 155 const char *sctp_oname(const union sctp_subtype id) 156 { 157 if (id.other <= SCTP_EVENT_OTHER_MAX) 158 return sctp_other_tbl[id.other]; 159 return "unknown 'other' event"; 160 } 161 162 static const char *const sctp_timer_tbl[] = { 163 "TIMEOUT_NONE", 164 "TIMEOUT_T1_COOKIE", 165 "TIMEOUT_T1_INIT", 166 "TIMEOUT_T2_SHUTDOWN", 167 "TIMEOUT_T3_RTX", 168 "TIMEOUT_T4_RTO", 169 "TIMEOUT_T5_SHUTDOWN_GUARD", 170 "TIMEOUT_HEARTBEAT", 171 "TIMEOUT_RECONF", 172 "TIMEOUT_SACK", 173 "TIMEOUT_AUTOCLOSE", 174 }; 175 176 /* Lookup timer debug name. */ 177 const char *sctp_tname(const union sctp_subtype id) 178 { 179 BUILD_BUG_ON(SCTP_EVENT_TIMEOUT_MAX + 1 != ARRAY_SIZE(sctp_timer_tbl)); 180 181 if (id.timeout < ARRAY_SIZE(sctp_timer_tbl)) 182 return sctp_timer_tbl[id.timeout]; 183 return "unknown_timer"; 184 } 185