net/sctp/debug.c

Source file repositories/reference/linux-study-clean/net/sctp/debug.c

File Facts

System
Linux kernel
Corpus path
net/sctp/debug.c
Extension
.c
Size
3917 bytes
Lines
171
Domain
Networking Core
Bucket
Sockets, Protocols, Packet Path, And Network Policy
Inferred role
Networking Core: implementation source
Status
source implementation candidate

Why This File Exists

Networking stack implementation surface: socket APIs, protocol dispatch, packet flow, routing, filtering, and network namespaces.

Dependency Surface

Detected Declarations

Annotated Snippet

// 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",

Annotation

Implementation Notes