// 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. * Copyright (c) 2001 Nokia, Inc. * * This file is part of the SCTP kernel implementation * * These are the state tables for the SCTP state machine. * * Please send any bug reports or fixes you make to the * email address(es): * lksctp developers <[email protected]> * * Written or modified by: * La Monte H.P. Yarroll <[email protected]> * Karl Knutson <[email protected]> * Jon Grimm <[email protected]> * Hui Huang <[email protected]> * Daisy Chang <[email protected]> * Ardelle Fan <[email protected]> * Sridhar Samudrala <[email protected]> */ #define pr_fmt(fmt) … #include <linux/skbuff.h> #include <net/sctp/sctp.h> #include <net/sctp/sm.h> static const struct sctp_sm_table_entry primitive_event_table[SCTP_NUM_PRIMITIVE_TYPES][SCTP_STATE_NUM_STATES]; static const struct sctp_sm_table_entry other_event_table[SCTP_NUM_OTHER_TYPES][SCTP_STATE_NUM_STATES]; static const struct sctp_sm_table_entry timeout_event_table[SCTP_NUM_TIMEOUT_TYPES][SCTP_STATE_NUM_STATES]; static const struct sctp_sm_table_entry *sctp_chunk_event_lookup( struct net *net, enum sctp_cid cid, enum sctp_state state); static const struct sctp_sm_table_entry bug = …; #define DO_LOOKUP(_max, _type, _table) … const struct sctp_sm_table_entry *sctp_sm_lookup_event( struct net *net, enum sctp_event_type event_type, enum sctp_state state, union sctp_subtype event_subtype) { … } #define TYPE_SCTP_FUNC(func) … #define TYPE_SCTP_DATA … #define TYPE_SCTP_INIT … #define TYPE_SCTP_INIT_ACK … #define TYPE_SCTP_SACK … #define TYPE_SCTP_HEARTBEAT … #define TYPE_SCTP_HEARTBEAT_ACK … #define TYPE_SCTP_ABORT … #define TYPE_SCTP_SHUTDOWN … #define TYPE_SCTP_SHUTDOWN_ACK … #define TYPE_SCTP_ERROR … #define TYPE_SCTP_COOKIE_ECHO … #define TYPE_SCTP_COOKIE_ACK … #define TYPE_SCTP_ECN_ECNE … #define TYPE_SCTP_ECN_CWR … #define TYPE_SCTP_SHUTDOWN_COMPLETE … /* The primary index for this table is the chunk type. * The secondary index for this table is the state. * * For base protocol (RFC 2960). */ static const struct sctp_sm_table_entry chunk_event_table[SCTP_NUM_BASE_CHUNK_TYPES][SCTP_STATE_NUM_STATES] = …; /* state_fn_t chunk_event_table[][] */ #define TYPE_SCTP_ASCONF … #define TYPE_SCTP_ASCONF_ACK … /* The primary index for this table is the chunk type. * The secondary index for this table is the state. */ static const struct sctp_sm_table_entry addip_chunk_event_table[SCTP_NUM_ADDIP_CHUNK_TYPES][SCTP_STATE_NUM_STATES] = …; /*state_fn_t addip_chunk_event_table[][] */ #define TYPE_SCTP_FWD_TSN … /* The primary index for this table is the chunk type. * The secondary index for this table is the state. */ static const struct sctp_sm_table_entry prsctp_chunk_event_table[SCTP_NUM_PRSCTP_CHUNK_TYPES][SCTP_STATE_NUM_STATES] = …; /*state_fn_t prsctp_chunk_event_table[][] */ #define TYPE_SCTP_RECONF … /* The primary index for this table is the chunk type. * The secondary index for this table is the state. */ static const struct sctp_sm_table_entry reconf_chunk_event_table[SCTP_NUM_RECONF_CHUNK_TYPES][SCTP_STATE_NUM_STATES] = …; /*state_fn_t reconf_chunk_event_table[][] */ #define TYPE_SCTP_AUTH … /* The primary index for this table is the chunk type. * The secondary index for this table is the state. */ static const struct sctp_sm_table_entry auth_chunk_event_table[SCTP_NUM_AUTH_CHUNK_TYPES][SCTP_STATE_NUM_STATES] = …; /*state_fn_t auth_chunk_event_table[][] */ static const struct sctp_sm_table_entry pad_chunk_event_table[SCTP_STATE_NUM_STATES] = …; /* chunk pad */ static const struct sctp_sm_table_entry chunk_event_table_unknown[SCTP_STATE_NUM_STATES] = …; /* chunk unknown */ #define TYPE_SCTP_PRIMITIVE_ASSOCIATE … #define TYPE_SCTP_PRIMITIVE_SHUTDOWN … #define TYPE_SCTP_PRIMITIVE_ABORT … #define TYPE_SCTP_PRIMITIVE_SEND … #define TYPE_SCTP_PRIMITIVE_REQUESTHEARTBEAT … #define TYPE_SCTP_PRIMITIVE_ASCONF … #define TYPE_SCTP_PRIMITIVE_RECONF … /* The primary index for this table is the primitive type. * The secondary index for this table is the state. */ static const struct sctp_sm_table_entry primitive_event_table[SCTP_NUM_PRIMITIVE_TYPES][SCTP_STATE_NUM_STATES] = …; #define TYPE_SCTP_OTHER_NO_PENDING_TSN … #define TYPE_SCTP_OTHER_ICMP_PROTO_UNREACH … static const struct sctp_sm_table_entry other_event_table[SCTP_NUM_OTHER_TYPES][SCTP_STATE_NUM_STATES] = …; #define TYPE_SCTP_EVENT_TIMEOUT_NONE … #define TYPE_SCTP_EVENT_TIMEOUT_T1_COOKIE … #define TYPE_SCTP_EVENT_TIMEOUT_T1_INIT … #define TYPE_SCTP_EVENT_TIMEOUT_T2_SHUTDOWN … #define TYPE_SCTP_EVENT_TIMEOUT_T3_RTX … #define TYPE_SCTP_EVENT_TIMEOUT_T4_RTO … #define TYPE_SCTP_EVENT_TIMEOUT_T5_SHUTDOWN_GUARD … #define TYPE_SCTP_EVENT_TIMEOUT_HEARTBEAT … #define TYPE_SCTP_EVENT_TIMEOUT_SACK … #define TYPE_SCTP_EVENT_TIMEOUT_AUTOCLOSE … #define TYPE_SCTP_EVENT_TIMEOUT_RECONF … #define TYPE_SCTP_EVENT_TIMEOUT_PROBE … static const struct sctp_sm_table_entry timeout_event_table[SCTP_NUM_TIMEOUT_TYPES][SCTP_STATE_NUM_STATES] = …; static const struct sctp_sm_table_entry *sctp_chunk_event_lookup( struct net *net, enum sctp_cid cid, enum sctp_state state) { … }
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