// SPDX-License-Identifier: GPL-2.0-or-later
/* 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.
*
* Please send any bug reports or fixes you make to the
* email address(es):
* lksctp developers <linux-sctp@vger.kernel.org>
*
* 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>
*/
#include <net/sctp/sctp.h>
/* These are printable forms of Chunk ID's from section 3.1. */
static const char *const 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 union sctp_subtype 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";
case SCTP_CID_AUTH:
return "AUTH";
case SCTP_CID_RECONF:
return "RECONF";
case SCTP_CID_I_DATA:
return "I_DATA";
case SCTP_CID_I_FWD_TSN:
return "I_FWD_TSN";
default:
break;
}
return "unknown chunk";
}
/* These are printable forms of the states. */
const char *const sctp_state_tbl[SCTP_STATE_NUM_STATES] = {
"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 *const 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 *const 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 *const sctp_primitive_tbl[SCTP_NUM_PRIMITIVE_TYPES] = {
"PRIMITIVE_ASSOCIATE",
"PRIMITIVE_SHUTDOWN",
"PRIMITIVE_ABORT",
"PRIMITIVE_SEND",
"PRIMITIVE_REQUESTHEARTBEAT",
"PRIMITIVE_ASCONF",
};
/* Lookup primitive debug name. */
const char *sctp_pname(const union sctp_subtype id)
{
if (id.primitive <= SCTP_EVENT_PRIMITIVE_MAX)
return sctp_primitive_tbl[id.primitive];
return "unknown_primitive";
}
static const char *const sctp_other_tbl[] = {
"NO_PENDING_TSN",
"ICMP_PROTO_UNREACH",
};
/* Lookup "other" debug name. */
const char *sctp_oname(const union sctp_subtype id)
{
if (id.other <= SCTP_EVENT_OTHER_MAX)
return sctp_other_tbl[id.other];
return "unknown 'other' event";
}
static const char *const 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_RECONF",
"TIMEOUT_SACK",
"TIMEOUT_AUTOCLOSE",
};
/* Lookup timer debug name. */
const char *sctp_tname(const union sctp_subtype id)
{
BUILD_BUG_ON(SCTP_EVENT_TIMEOUT_MAX + 1 != ARRAY_SIZE(sctp_timer_tbl));
if (id.timeout < ARRAY_SIZE(sctp_timer_tbl))
return sctp_timer_tbl[id.timeout];
return "unknown_timer";
}
