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 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. */ 89 const 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. */ 101 const 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 */ 110 const 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 */ 123 static 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. */ 133 const 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 } 139 140 static const char *const sctp_other_tbl[] = { 141 "NO_PENDING_TSN", 142 "ICMP_PROTO_UNREACH", 143 }; 144 145 /* Lookup "other" debug name. */ 146 const 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 } 152 153 static 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. */ 167 const 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