1018 lines
34 KiB
C
Executable file
1018 lines
34 KiB
C
Executable file
/* SCTP kernel implementation
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* (C) Copyright IBM Corp. 2001, 2004
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* Copyright (c) 1999-2000 Cisco, Inc.
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* Copyright (c) 1999-2001 Motorola, Inc.
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* Copyright (c) 2001 Intel Corp.
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* Copyright (c) 2001 Nokia, Inc.
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*
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* This file is part of the SCTP kernel implementation
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*
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* These are the state tables for the SCTP state machine.
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*
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* This SCTP implementation is free software;
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* you can redistribute it and/or modify it under the terms of
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* the GNU General Public License as published by
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* the Free Software Foundation; either version 2, or (at your option)
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* any later version.
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*
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* This SCTP implementation is distributed in the hope that it
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* will be useful, but WITHOUT ANY WARRANTY; without even the implied
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* ************************
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* warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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* See the GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with GNU CC; see the file COPYING. If not, see
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* <http://www.gnu.org/licenses/>.
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*
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* Please send any bug reports or fixes you make to the
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* email address(es):
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* lksctp developers <linux-sctp@vger.kernel.org>
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*
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* Written or modified by:
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* La Monte H.P. Yarroll <piggy@acm.org>
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* Karl Knutson <karl@athena.chicago.il.us>
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* Jon Grimm <jgrimm@us.ibm.com>
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* Hui Huang <hui.huang@nokia.com>
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* Daisy Chang <daisyc@us.ibm.com>
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* Ardelle Fan <ardelle.fan@intel.com>
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* Sridhar Samudrala <sri@us.ibm.com>
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*/
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#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
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#include <linux/skbuff.h>
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#include <net/sctp/sctp.h>
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#include <net/sctp/sm.h>
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static const struct sctp_sm_table_entry
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primitive_event_table[SCTP_NUM_PRIMITIVE_TYPES][SCTP_STATE_NUM_STATES];
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static const struct sctp_sm_table_entry
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other_event_table[SCTP_NUM_OTHER_TYPES][SCTP_STATE_NUM_STATES];
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static const struct sctp_sm_table_entry
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timeout_event_table[SCTP_NUM_TIMEOUT_TYPES][SCTP_STATE_NUM_STATES];
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static const struct sctp_sm_table_entry *sctp_chunk_event_lookup(
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struct net *net,
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enum sctp_cid cid,
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enum sctp_state state);
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static const struct sctp_sm_table_entry bug = {
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.fn = sctp_sf_bug,
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.name = "sctp_sf_bug"
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};
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#define DO_LOOKUP(_max, _type, _table) \
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({ \
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const struct sctp_sm_table_entry *rtn; \
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\
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if ((event_subtype._type > (_max))) { \
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pr_warn("table %p possible attack: event %d exceeds max %d\n", \
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_table, event_subtype._type, _max); \
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rtn = &bug; \
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} else \
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rtn = &_table[event_subtype._type][(int)state]; \
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\
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rtn; \
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})
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const struct sctp_sm_table_entry *sctp_sm_lookup_event(
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struct net *net,
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enum sctp_event event_type,
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enum sctp_state state,
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union sctp_subtype event_subtype)
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{
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switch (event_type) {
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case SCTP_EVENT_T_CHUNK:
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return sctp_chunk_event_lookup(net, event_subtype.chunk, state);
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case SCTP_EVENT_T_TIMEOUT:
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return DO_LOOKUP(SCTP_EVENT_TIMEOUT_MAX, timeout,
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timeout_event_table);
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case SCTP_EVENT_T_OTHER:
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return DO_LOOKUP(SCTP_EVENT_OTHER_MAX, other,
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other_event_table);
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case SCTP_EVENT_T_PRIMITIVE:
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return DO_LOOKUP(SCTP_EVENT_PRIMITIVE_MAX, primitive,
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primitive_event_table);
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default:
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/* Yikes! We got an illegal event type. */
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return &bug;
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}
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}
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#define TYPE_SCTP_FUNC(func) {.fn = func, .name = #func}
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#define TYPE_SCTP_DATA { \
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/* SCTP_STATE_CLOSED */ \
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TYPE_SCTP_FUNC(sctp_sf_ootb), \
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/* SCTP_STATE_COOKIE_WAIT */ \
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TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
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/* SCTP_STATE_COOKIE_ECHOED */ \
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TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
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/* SCTP_STATE_ESTABLISHED */ \
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TYPE_SCTP_FUNC(sctp_sf_eat_data_6_2), \
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/* SCTP_STATE_SHUTDOWN_PENDING */ \
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TYPE_SCTP_FUNC(sctp_sf_eat_data_6_2), \
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/* SCTP_STATE_SHUTDOWN_SENT */ \
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TYPE_SCTP_FUNC(sctp_sf_eat_data_fast_4_4), \
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/* SCTP_STATE_SHUTDOWN_RECEIVED */ \
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TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
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/* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
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TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
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} /* TYPE_SCTP_DATA */
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#define TYPE_SCTP_INIT { \
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/* SCTP_STATE_CLOSED */ \
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TYPE_SCTP_FUNC(sctp_sf_do_5_1B_init), \
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/* SCTP_STATE_COOKIE_WAIT */ \
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TYPE_SCTP_FUNC(sctp_sf_do_5_2_1_siminit), \
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/* SCTP_STATE_COOKIE_ECHOED */ \
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TYPE_SCTP_FUNC(sctp_sf_do_5_2_1_siminit), \
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/* SCTP_STATE_ESTABLISHED */ \
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TYPE_SCTP_FUNC(sctp_sf_do_5_2_2_dupinit), \
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/* SCTP_STATE_SHUTDOWN_PENDING */ \
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TYPE_SCTP_FUNC(sctp_sf_do_5_2_2_dupinit), \
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/* SCTP_STATE_SHUTDOWN_SENT */ \
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TYPE_SCTP_FUNC(sctp_sf_do_5_2_2_dupinit), \
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/* SCTP_STATE_SHUTDOWN_RECEIVED */ \
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TYPE_SCTP_FUNC(sctp_sf_do_5_2_2_dupinit), \
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/* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
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TYPE_SCTP_FUNC(sctp_sf_do_9_2_reshutack), \
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} /* TYPE_SCTP_INIT */
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#define TYPE_SCTP_INIT_ACK { \
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/* SCTP_STATE_CLOSED */ \
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TYPE_SCTP_FUNC(sctp_sf_do_5_2_3_initack), \
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/* SCTP_STATE_COOKIE_WAIT */ \
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TYPE_SCTP_FUNC(sctp_sf_do_5_1C_ack), \
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/* SCTP_STATE_COOKIE_ECHOED */ \
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TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
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/* SCTP_STATE_ESTABLISHED */ \
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TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
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/* SCTP_STATE_SHUTDOWN_PENDING */ \
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TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
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/* SCTP_STATE_SHUTDOWN_SENT */ \
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TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
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/* SCTP_STATE_SHUTDOWN_RECEIVED */ \
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TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
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/* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
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TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
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} /* TYPE_SCTP_INIT_ACK */
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#define TYPE_SCTP_SACK { \
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/* SCTP_STATE_CLOSED */ \
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TYPE_SCTP_FUNC(sctp_sf_ootb), \
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/* SCTP_STATE_COOKIE_WAIT */ \
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TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
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/* SCTP_STATE_COOKIE_ECHOED */ \
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TYPE_SCTP_FUNC(sctp_sf_eat_sack_6_2), \
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/* SCTP_STATE_ESTABLISHED */ \
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TYPE_SCTP_FUNC(sctp_sf_eat_sack_6_2), \
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/* SCTP_STATE_SHUTDOWN_PENDING */ \
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TYPE_SCTP_FUNC(sctp_sf_eat_sack_6_2), \
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/* SCTP_STATE_SHUTDOWN_SENT */ \
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TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
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/* SCTP_STATE_SHUTDOWN_RECEIVED */ \
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TYPE_SCTP_FUNC(sctp_sf_eat_sack_6_2), \
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/* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
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TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
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} /* TYPE_SCTP_SACK */
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#define TYPE_SCTP_HEARTBEAT { \
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/* SCTP_STATE_CLOSED */ \
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TYPE_SCTP_FUNC(sctp_sf_ootb), \
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/* SCTP_STATE_COOKIE_WAIT */ \
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TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
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/* SCTP_STATE_COOKIE_ECHOED */ \
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TYPE_SCTP_FUNC(sctp_sf_beat_8_3), \
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/* SCTP_STATE_ESTABLISHED */ \
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TYPE_SCTP_FUNC(sctp_sf_beat_8_3), \
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/* SCTP_STATE_SHUTDOWN_PENDING */ \
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TYPE_SCTP_FUNC(sctp_sf_beat_8_3), \
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/* SCTP_STATE_SHUTDOWN_SENT */ \
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TYPE_SCTP_FUNC(sctp_sf_beat_8_3), \
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/* SCTP_STATE_SHUTDOWN_RECEIVED */ \
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TYPE_SCTP_FUNC(sctp_sf_beat_8_3), \
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/* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
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/* This should not happen, but we are nice. */ \
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TYPE_SCTP_FUNC(sctp_sf_beat_8_3), \
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} /* TYPE_SCTP_HEARTBEAT */
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#define TYPE_SCTP_HEARTBEAT_ACK { \
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/* SCTP_STATE_CLOSED */ \
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TYPE_SCTP_FUNC(sctp_sf_ootb), \
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/* SCTP_STATE_COOKIE_WAIT */ \
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TYPE_SCTP_FUNC(sctp_sf_violation), \
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/* SCTP_STATE_COOKIE_ECHOED */ \
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TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
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/* SCTP_STATE_ESTABLISHED */ \
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TYPE_SCTP_FUNC(sctp_sf_backbeat_8_3), \
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/* SCTP_STATE_SHUTDOWN_PENDING */ \
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TYPE_SCTP_FUNC(sctp_sf_backbeat_8_3), \
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/* SCTP_STATE_SHUTDOWN_SENT */ \
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TYPE_SCTP_FUNC(sctp_sf_backbeat_8_3), \
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/* SCTP_STATE_SHUTDOWN_RECEIVED */ \
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TYPE_SCTP_FUNC(sctp_sf_backbeat_8_3), \
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/* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
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TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
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} /* TYPE_SCTP_HEARTBEAT_ACK */
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#define TYPE_SCTP_ABORT { \
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/* SCTP_STATE_CLOSED */ \
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TYPE_SCTP_FUNC(sctp_sf_pdiscard), \
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/* SCTP_STATE_COOKIE_WAIT */ \
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TYPE_SCTP_FUNC(sctp_sf_cookie_wait_abort), \
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/* SCTP_STATE_COOKIE_ECHOED */ \
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TYPE_SCTP_FUNC(sctp_sf_cookie_echoed_abort), \
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/* SCTP_STATE_ESTABLISHED */ \
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TYPE_SCTP_FUNC(sctp_sf_do_9_1_abort), \
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/* SCTP_STATE_SHUTDOWN_PENDING */ \
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TYPE_SCTP_FUNC(sctp_sf_shutdown_pending_abort), \
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/* SCTP_STATE_SHUTDOWN_SENT */ \
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TYPE_SCTP_FUNC(sctp_sf_shutdown_sent_abort), \
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/* SCTP_STATE_SHUTDOWN_RECEIVED */ \
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TYPE_SCTP_FUNC(sctp_sf_do_9_1_abort), \
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/* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
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TYPE_SCTP_FUNC(sctp_sf_shutdown_ack_sent_abort), \
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} /* TYPE_SCTP_ABORT */
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#define TYPE_SCTP_SHUTDOWN { \
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/* SCTP_STATE_CLOSED */ \
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TYPE_SCTP_FUNC(sctp_sf_ootb), \
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/* SCTP_STATE_COOKIE_WAIT */ \
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TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
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/* SCTP_STATE_COOKIE_ECHOED */ \
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TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
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/* SCTP_STATE_ESTABLISHED */ \
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TYPE_SCTP_FUNC(sctp_sf_do_9_2_shutdown), \
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/* SCTP_STATE_SHUTDOWN_PENDING */ \
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TYPE_SCTP_FUNC(sctp_sf_do_9_2_shutdown), \
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/* SCTP_STATE_SHUTDOWN_SENT */ \
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TYPE_SCTP_FUNC(sctp_sf_do_9_2_shutdown_ack), \
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/* SCTP_STATE_SHUTDOWN_RECEIVED */ \
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TYPE_SCTP_FUNC(sctp_sf_do_9_2_shut_ctsn), \
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/* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
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TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
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} /* TYPE_SCTP_SHUTDOWN */
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#define TYPE_SCTP_SHUTDOWN_ACK { \
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/* SCTP_STATE_CLOSED */ \
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TYPE_SCTP_FUNC(sctp_sf_ootb), \
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/* SCTP_STATE_COOKIE_WAIT */ \
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TYPE_SCTP_FUNC(sctp_sf_do_8_5_1_E_sa), \
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/* SCTP_STATE_COOKIE_ECHOED */ \
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TYPE_SCTP_FUNC(sctp_sf_do_8_5_1_E_sa), \
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/* SCTP_STATE_ESTABLISHED */ \
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TYPE_SCTP_FUNC(sctp_sf_violation), \
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/* SCTP_STATE_SHUTDOWN_PENDING */ \
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TYPE_SCTP_FUNC(sctp_sf_violation), \
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/* SCTP_STATE_SHUTDOWN_SENT */ \
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TYPE_SCTP_FUNC(sctp_sf_do_9_2_final), \
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/* SCTP_STATE_SHUTDOWN_RECEIVED */ \
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TYPE_SCTP_FUNC(sctp_sf_violation), \
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/* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
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TYPE_SCTP_FUNC(sctp_sf_do_9_2_final), \
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} /* TYPE_SCTP_SHUTDOWN_ACK */
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#define TYPE_SCTP_ERROR { \
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/* SCTP_STATE_CLOSED */ \
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TYPE_SCTP_FUNC(sctp_sf_ootb), \
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/* SCTP_STATE_COOKIE_WAIT */ \
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TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
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/* SCTP_STATE_COOKIE_ECHOED */ \
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TYPE_SCTP_FUNC(sctp_sf_cookie_echoed_err), \
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/* SCTP_STATE_ESTABLISHED */ \
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TYPE_SCTP_FUNC(sctp_sf_operr_notify), \
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/* SCTP_STATE_SHUTDOWN_PENDING */ \
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TYPE_SCTP_FUNC(sctp_sf_operr_notify), \
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/* SCTP_STATE_SHUTDOWN_SENT */ \
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TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
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/* SCTP_STATE_SHUTDOWN_RECEIVED */ \
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TYPE_SCTP_FUNC(sctp_sf_operr_notify), \
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/* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
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TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
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} /* TYPE_SCTP_ERROR */
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#define TYPE_SCTP_COOKIE_ECHO { \
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/* SCTP_STATE_CLOSED */ \
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TYPE_SCTP_FUNC(sctp_sf_do_5_1D_ce), \
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/* SCTP_STATE_COOKIE_WAIT */ \
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TYPE_SCTP_FUNC(sctp_sf_do_5_2_4_dupcook), \
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/* SCTP_STATE_COOKIE_ECHOED */ \
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TYPE_SCTP_FUNC(sctp_sf_do_5_2_4_dupcook), \
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/* SCTP_STATE_ESTABLISHED */ \
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TYPE_SCTP_FUNC(sctp_sf_do_5_2_4_dupcook), \
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/* SCTP_STATE_SHUTDOWN_PENDING */ \
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TYPE_SCTP_FUNC(sctp_sf_do_5_2_4_dupcook), \
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/* SCTP_STATE_SHUTDOWN_SENT */ \
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TYPE_SCTP_FUNC(sctp_sf_do_5_2_4_dupcook), \
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/* SCTP_STATE_SHUTDOWN_RECEIVED */ \
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TYPE_SCTP_FUNC(sctp_sf_do_5_2_4_dupcook), \
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/* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
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TYPE_SCTP_FUNC(sctp_sf_do_5_2_4_dupcook), \
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} /* TYPE_SCTP_COOKIE_ECHO */
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#define TYPE_SCTP_COOKIE_ACK { \
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/* SCTP_STATE_CLOSED */ \
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TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
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/* SCTP_STATE_COOKIE_WAIT */ \
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TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
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/* SCTP_STATE_COOKIE_ECHOED */ \
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TYPE_SCTP_FUNC(sctp_sf_do_5_1E_ca), \
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/* SCTP_STATE_ESTABLISHED */ \
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TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
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/* SCTP_STATE_SHUTDOWN_PENDING */ \
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TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
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/* SCTP_STATE_SHUTDOWN_SENT */ \
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TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
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/* SCTP_STATE_SHUTDOWN_RECEIVED */ \
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TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
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/* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
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TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
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} /* TYPE_SCTP_COOKIE_ACK */
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#define TYPE_SCTP_ECN_ECNE { \
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/* SCTP_STATE_CLOSED */ \
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TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
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/* SCTP_STATE_COOKIE_WAIT */ \
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TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
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/* SCTP_STATE_COOKIE_ECHOED */ \
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TYPE_SCTP_FUNC(sctp_sf_do_ecne), \
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/* SCTP_STATE_ESTABLISHED */ \
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TYPE_SCTP_FUNC(sctp_sf_do_ecne), \
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/* SCTP_STATE_SHUTDOWN_PENDING */ \
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TYPE_SCTP_FUNC(sctp_sf_do_ecne), \
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/* SCTP_STATE_SHUTDOWN_SENT */ \
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TYPE_SCTP_FUNC(sctp_sf_do_ecne), \
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/* SCTP_STATE_SHUTDOWN_RECEIVED */ \
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TYPE_SCTP_FUNC(sctp_sf_do_ecne), \
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/* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
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TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
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} /* TYPE_SCTP_ECN_ECNE */
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#define TYPE_SCTP_ECN_CWR { \
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/* SCTP_STATE_CLOSED */ \
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TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
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/* SCTP_STATE_COOKIE_WAIT */ \
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TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
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/* SCTP_STATE_COOKIE_ECHOED */ \
|
|
TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
|
|
/* SCTP_STATE_ESTABLISHED */ \
|
|
TYPE_SCTP_FUNC(sctp_sf_do_ecn_cwr), \
|
|
/* SCTP_STATE_SHUTDOWN_PENDING */ \
|
|
TYPE_SCTP_FUNC(sctp_sf_do_ecn_cwr), \
|
|
/* SCTP_STATE_SHUTDOWN_SENT */ \
|
|
TYPE_SCTP_FUNC(sctp_sf_do_ecn_cwr), \
|
|
/* SCTP_STATE_SHUTDOWN_RECEIVED */ \
|
|
TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
|
|
/* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
|
|
TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
|
|
} /* TYPE_SCTP_ECN_CWR */
|
|
|
|
#define TYPE_SCTP_SHUTDOWN_COMPLETE { \
|
|
/* SCTP_STATE_CLOSED */ \
|
|
TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
|
|
/* SCTP_STATE_COOKIE_WAIT */ \
|
|
TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
|
|
/* SCTP_STATE_COOKIE_ECHOED */ \
|
|
TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
|
|
/* SCTP_STATE_ESTABLISHED */ \
|
|
TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
|
|
/* SCTP_STATE_SHUTDOWN_PENDING */ \
|
|
TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
|
|
/* SCTP_STATE_SHUTDOWN_SENT */ \
|
|
TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
|
|
/* SCTP_STATE_SHUTDOWN_RECEIVED */ \
|
|
TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
|
|
/* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
|
|
TYPE_SCTP_FUNC(sctp_sf_do_4_C), \
|
|
} /* 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] = {
|
|
TYPE_SCTP_DATA,
|
|
TYPE_SCTP_INIT,
|
|
TYPE_SCTP_INIT_ACK,
|
|
TYPE_SCTP_SACK,
|
|
TYPE_SCTP_HEARTBEAT,
|
|
TYPE_SCTP_HEARTBEAT_ACK,
|
|
TYPE_SCTP_ABORT,
|
|
TYPE_SCTP_SHUTDOWN,
|
|
TYPE_SCTP_SHUTDOWN_ACK,
|
|
TYPE_SCTP_ERROR,
|
|
TYPE_SCTP_COOKIE_ECHO,
|
|
TYPE_SCTP_COOKIE_ACK,
|
|
TYPE_SCTP_ECN_ECNE,
|
|
TYPE_SCTP_ECN_CWR,
|
|
TYPE_SCTP_SHUTDOWN_COMPLETE,
|
|
}; /* state_fn_t chunk_event_table[][] */
|
|
|
|
#define TYPE_SCTP_ASCONF { \
|
|
/* SCTP_STATE_CLOSED */ \
|
|
TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
|
|
/* SCTP_STATE_COOKIE_WAIT */ \
|
|
TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
|
|
/* SCTP_STATE_COOKIE_ECHOED */ \
|
|
TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
|
|
/* SCTP_STATE_ESTABLISHED */ \
|
|
TYPE_SCTP_FUNC(sctp_sf_do_asconf), \
|
|
/* SCTP_STATE_SHUTDOWN_PENDING */ \
|
|
TYPE_SCTP_FUNC(sctp_sf_do_asconf), \
|
|
/* SCTP_STATE_SHUTDOWN_SENT */ \
|
|
TYPE_SCTP_FUNC(sctp_sf_do_asconf), \
|
|
/* SCTP_STATE_SHUTDOWN_RECEIVED */ \
|
|
TYPE_SCTP_FUNC(sctp_sf_do_asconf), \
|
|
/* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
|
|
TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
|
|
} /* TYPE_SCTP_ASCONF */
|
|
|
|
#define TYPE_SCTP_ASCONF_ACK { \
|
|
/* SCTP_STATE_CLOSED */ \
|
|
TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
|
|
/* SCTP_STATE_COOKIE_WAIT */ \
|
|
TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
|
|
/* SCTP_STATE_COOKIE_ECHOED */ \
|
|
TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
|
|
/* SCTP_STATE_ESTABLISHED */ \
|
|
TYPE_SCTP_FUNC(sctp_sf_do_asconf_ack), \
|
|
/* SCTP_STATE_SHUTDOWN_PENDING */ \
|
|
TYPE_SCTP_FUNC(sctp_sf_do_asconf_ack), \
|
|
/* SCTP_STATE_SHUTDOWN_SENT */ \
|
|
TYPE_SCTP_FUNC(sctp_sf_do_asconf_ack), \
|
|
/* SCTP_STATE_SHUTDOWN_RECEIVED */ \
|
|
TYPE_SCTP_FUNC(sctp_sf_do_asconf_ack), \
|
|
/* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
|
|
TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
|
|
} /* 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] = {
|
|
TYPE_SCTP_ASCONF,
|
|
TYPE_SCTP_ASCONF_ACK,
|
|
}; /*state_fn_t addip_chunk_event_table[][] */
|
|
|
|
#define TYPE_SCTP_FWD_TSN { \
|
|
/* SCTP_STATE_CLOSED */ \
|
|
TYPE_SCTP_FUNC(sctp_sf_ootb), \
|
|
/* SCTP_STATE_COOKIE_WAIT */ \
|
|
TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
|
|
/* SCTP_STATE_COOKIE_ECHOED */ \
|
|
TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
|
|
/* SCTP_STATE_ESTABLISHED */ \
|
|
TYPE_SCTP_FUNC(sctp_sf_eat_fwd_tsn), \
|
|
/* SCTP_STATE_SHUTDOWN_PENDING */ \
|
|
TYPE_SCTP_FUNC(sctp_sf_eat_fwd_tsn), \
|
|
/* SCTP_STATE_SHUTDOWN_SENT */ \
|
|
TYPE_SCTP_FUNC(sctp_sf_eat_fwd_tsn_fast), \
|
|
/* SCTP_STATE_SHUTDOWN_RECEIVED */ \
|
|
TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
|
|
/* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
|
|
TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
|
|
} /* 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] = {
|
|
TYPE_SCTP_FWD_TSN,
|
|
}; /*state_fn_t prsctp_chunk_event_table[][] */
|
|
|
|
#define TYPE_SCTP_RECONF { \
|
|
/* SCTP_STATE_CLOSED */ \
|
|
TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
|
|
/* SCTP_STATE_COOKIE_WAIT */ \
|
|
TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
|
|
/* SCTP_STATE_COOKIE_ECHOED */ \
|
|
TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
|
|
/* SCTP_STATE_ESTABLISHED */ \
|
|
TYPE_SCTP_FUNC(sctp_sf_do_reconf), \
|
|
/* SCTP_STATE_SHUTDOWN_PENDING */ \
|
|
TYPE_SCTP_FUNC(sctp_sf_do_reconf), \
|
|
/* SCTP_STATE_SHUTDOWN_SENT */ \
|
|
TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
|
|
/* SCTP_STATE_SHUTDOWN_RECEIVED */ \
|
|
TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
|
|
/* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
|
|
TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
|
|
} /* 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] = {
|
|
TYPE_SCTP_RECONF,
|
|
}; /*state_fn_t reconf_chunk_event_table[][] */
|
|
|
|
#define TYPE_SCTP_AUTH { \
|
|
/* SCTP_STATE_CLOSED */ \
|
|
TYPE_SCTP_FUNC(sctp_sf_ootb), \
|
|
/* SCTP_STATE_COOKIE_WAIT */ \
|
|
TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \
|
|
/* SCTP_STATE_COOKIE_ECHOED */ \
|
|
TYPE_SCTP_FUNC(sctp_sf_eat_auth), \
|
|
/* SCTP_STATE_ESTABLISHED */ \
|
|
TYPE_SCTP_FUNC(sctp_sf_eat_auth), \
|
|
/* SCTP_STATE_SHUTDOWN_PENDING */ \
|
|
TYPE_SCTP_FUNC(sctp_sf_eat_auth), \
|
|
/* SCTP_STATE_SHUTDOWN_SENT */ \
|
|
TYPE_SCTP_FUNC(sctp_sf_eat_auth), \
|
|
/* SCTP_STATE_SHUTDOWN_RECEIVED */ \
|
|
TYPE_SCTP_FUNC(sctp_sf_eat_auth), \
|
|
/* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
|
|
TYPE_SCTP_FUNC(sctp_sf_eat_auth), \
|
|
} /* 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] = {
|
|
TYPE_SCTP_AUTH,
|
|
}; /*state_fn_t auth_chunk_event_table[][] */
|
|
|
|
static const struct sctp_sm_table_entry
|
|
chunk_event_table_unknown[SCTP_STATE_NUM_STATES] = {
|
|
/* SCTP_STATE_CLOSED */
|
|
TYPE_SCTP_FUNC(sctp_sf_ootb),
|
|
/* SCTP_STATE_COOKIE_WAIT */
|
|
TYPE_SCTP_FUNC(sctp_sf_unk_chunk),
|
|
/* SCTP_STATE_COOKIE_ECHOED */
|
|
TYPE_SCTP_FUNC(sctp_sf_unk_chunk),
|
|
/* SCTP_STATE_ESTABLISHED */
|
|
TYPE_SCTP_FUNC(sctp_sf_unk_chunk),
|
|
/* SCTP_STATE_SHUTDOWN_PENDING */
|
|
TYPE_SCTP_FUNC(sctp_sf_unk_chunk),
|
|
/* SCTP_STATE_SHUTDOWN_SENT */
|
|
TYPE_SCTP_FUNC(sctp_sf_unk_chunk),
|
|
/* SCTP_STATE_SHUTDOWN_RECEIVED */
|
|
TYPE_SCTP_FUNC(sctp_sf_unk_chunk),
|
|
/* SCTP_STATE_SHUTDOWN_ACK_SENT */
|
|
TYPE_SCTP_FUNC(sctp_sf_unk_chunk),
|
|
}; /* chunk unknown */
|
|
|
|
|
|
#define TYPE_SCTP_PRIMITIVE_ASSOCIATE { \
|
|
/* SCTP_STATE_CLOSED */ \
|
|
TYPE_SCTP_FUNC(sctp_sf_do_prm_asoc), \
|
|
/* SCTP_STATE_COOKIE_WAIT */ \
|
|
TYPE_SCTP_FUNC(sctp_sf_not_impl), \
|
|
/* SCTP_STATE_COOKIE_ECHOED */ \
|
|
TYPE_SCTP_FUNC(sctp_sf_not_impl), \
|
|
/* SCTP_STATE_ESTABLISHED */ \
|
|
TYPE_SCTP_FUNC(sctp_sf_not_impl), \
|
|
/* SCTP_STATE_SHUTDOWN_PENDING */ \
|
|
TYPE_SCTP_FUNC(sctp_sf_not_impl), \
|
|
/* SCTP_STATE_SHUTDOWN_SENT */ \
|
|
TYPE_SCTP_FUNC(sctp_sf_not_impl), \
|
|
/* SCTP_STATE_SHUTDOWN_RECEIVED */ \
|
|
TYPE_SCTP_FUNC(sctp_sf_not_impl), \
|
|
/* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
|
|
TYPE_SCTP_FUNC(sctp_sf_not_impl), \
|
|
} /* TYPE_SCTP_PRIMITIVE_ASSOCIATE */
|
|
|
|
#define TYPE_SCTP_PRIMITIVE_SHUTDOWN { \
|
|
/* SCTP_STATE_CLOSED */ \
|
|
TYPE_SCTP_FUNC(sctp_sf_error_closed), \
|
|
/* SCTP_STATE_COOKIE_WAIT */ \
|
|
TYPE_SCTP_FUNC(sctp_sf_cookie_wait_prm_shutdown), \
|
|
/* SCTP_STATE_COOKIE_ECHOED */ \
|
|
TYPE_SCTP_FUNC(sctp_sf_cookie_echoed_prm_shutdown),\
|
|
/* SCTP_STATE_ESTABLISHED */ \
|
|
TYPE_SCTP_FUNC(sctp_sf_do_9_2_prm_shutdown), \
|
|
/* SCTP_STATE_SHUTDOWN_PENDING */ \
|
|
TYPE_SCTP_FUNC(sctp_sf_ignore_primitive), \
|
|
/* SCTP_STATE_SHUTDOWN_SENT */ \
|
|
TYPE_SCTP_FUNC(sctp_sf_ignore_primitive), \
|
|
/* SCTP_STATE_SHUTDOWN_RECEIVED */ \
|
|
TYPE_SCTP_FUNC(sctp_sf_ignore_primitive), \
|
|
/* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
|
|
TYPE_SCTP_FUNC(sctp_sf_ignore_primitive), \
|
|
} /* TYPE_SCTP_PRIMITIVE_SHUTDOWN */
|
|
|
|
#define TYPE_SCTP_PRIMITIVE_ABORT { \
|
|
/* SCTP_STATE_CLOSED */ \
|
|
TYPE_SCTP_FUNC(sctp_sf_error_closed), \
|
|
/* SCTP_STATE_COOKIE_WAIT */ \
|
|
TYPE_SCTP_FUNC(sctp_sf_cookie_wait_prm_abort), \
|
|
/* SCTP_STATE_COOKIE_ECHOED */ \
|
|
TYPE_SCTP_FUNC(sctp_sf_cookie_echoed_prm_abort), \
|
|
/* SCTP_STATE_ESTABLISHED */ \
|
|
TYPE_SCTP_FUNC(sctp_sf_do_9_1_prm_abort), \
|
|
/* SCTP_STATE_SHUTDOWN_PENDING */ \
|
|
TYPE_SCTP_FUNC(sctp_sf_shutdown_pending_prm_abort), \
|
|
/* SCTP_STATE_SHUTDOWN_SENT */ \
|
|
TYPE_SCTP_FUNC(sctp_sf_shutdown_sent_prm_abort), \
|
|
/* SCTP_STATE_SHUTDOWN_RECEIVED */ \
|
|
TYPE_SCTP_FUNC(sctp_sf_do_9_1_prm_abort), \
|
|
/* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
|
|
TYPE_SCTP_FUNC(sctp_sf_shutdown_ack_sent_prm_abort), \
|
|
} /* TYPE_SCTP_PRIMITIVE_ABORT */
|
|
|
|
#define TYPE_SCTP_PRIMITIVE_SEND { \
|
|
/* SCTP_STATE_CLOSED */ \
|
|
TYPE_SCTP_FUNC(sctp_sf_error_closed), \
|
|
/* SCTP_STATE_COOKIE_WAIT */ \
|
|
TYPE_SCTP_FUNC(sctp_sf_do_prm_send), \
|
|
/* SCTP_STATE_COOKIE_ECHOED */ \
|
|
TYPE_SCTP_FUNC(sctp_sf_do_prm_send), \
|
|
/* SCTP_STATE_ESTABLISHED */ \
|
|
TYPE_SCTP_FUNC(sctp_sf_do_prm_send), \
|
|
/* SCTP_STATE_SHUTDOWN_PENDING */ \
|
|
TYPE_SCTP_FUNC(sctp_sf_error_shutdown), \
|
|
/* SCTP_STATE_SHUTDOWN_SENT */ \
|
|
TYPE_SCTP_FUNC(sctp_sf_error_shutdown), \
|
|
/* SCTP_STATE_SHUTDOWN_RECEIVED */ \
|
|
TYPE_SCTP_FUNC(sctp_sf_error_shutdown), \
|
|
/* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
|
|
TYPE_SCTP_FUNC(sctp_sf_error_shutdown), \
|
|
} /* TYPE_SCTP_PRIMITIVE_SEND */
|
|
|
|
#define TYPE_SCTP_PRIMITIVE_REQUESTHEARTBEAT { \
|
|
/* SCTP_STATE_CLOSED */ \
|
|
TYPE_SCTP_FUNC(sctp_sf_error_closed), \
|
|
/* SCTP_STATE_COOKIE_WAIT */ \
|
|
TYPE_SCTP_FUNC(sctp_sf_do_prm_requestheartbeat), \
|
|
/* SCTP_STATE_COOKIE_ECHOED */ \
|
|
TYPE_SCTP_FUNC(sctp_sf_do_prm_requestheartbeat), \
|
|
/* SCTP_STATE_ESTABLISHED */ \
|
|
TYPE_SCTP_FUNC(sctp_sf_do_prm_requestheartbeat), \
|
|
/* SCTP_STATE_SHUTDOWN_PENDING */ \
|
|
TYPE_SCTP_FUNC(sctp_sf_do_prm_requestheartbeat), \
|
|
/* SCTP_STATE_SHUTDOWN_SENT */ \
|
|
TYPE_SCTP_FUNC(sctp_sf_do_prm_requestheartbeat), \
|
|
/* SCTP_STATE_SHUTDOWN_RECEIVED */ \
|
|
TYPE_SCTP_FUNC(sctp_sf_do_prm_requestheartbeat), \
|
|
/* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
|
|
TYPE_SCTP_FUNC(sctp_sf_do_prm_requestheartbeat), \
|
|
} /* TYPE_SCTP_PRIMITIVE_REQUESTHEARTBEAT */
|
|
|
|
#define TYPE_SCTP_PRIMITIVE_ASCONF { \
|
|
/* SCTP_STATE_CLOSED */ \
|
|
TYPE_SCTP_FUNC(sctp_sf_error_closed), \
|
|
/* SCTP_STATE_COOKIE_WAIT */ \
|
|
TYPE_SCTP_FUNC(sctp_sf_error_closed), \
|
|
/* SCTP_STATE_COOKIE_ECHOED */ \
|
|
TYPE_SCTP_FUNC(sctp_sf_error_closed), \
|
|
/* SCTP_STATE_ESTABLISHED */ \
|
|
TYPE_SCTP_FUNC(sctp_sf_do_prm_asconf), \
|
|
/* SCTP_STATE_SHUTDOWN_PENDING */ \
|
|
TYPE_SCTP_FUNC(sctp_sf_do_prm_asconf), \
|
|
/* SCTP_STATE_SHUTDOWN_SENT */ \
|
|
TYPE_SCTP_FUNC(sctp_sf_do_prm_asconf), \
|
|
/* SCTP_STATE_SHUTDOWN_RECEIVED */ \
|
|
TYPE_SCTP_FUNC(sctp_sf_do_prm_asconf), \
|
|
/* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
|
|
TYPE_SCTP_FUNC(sctp_sf_error_shutdown), \
|
|
} /* TYPE_SCTP_PRIMITIVE_ASCONF */
|
|
|
|
#define TYPE_SCTP_PRIMITIVE_RECONF { \
|
|
/* SCTP_STATE_CLOSED */ \
|
|
TYPE_SCTP_FUNC(sctp_sf_error_closed), \
|
|
/* SCTP_STATE_COOKIE_WAIT */ \
|
|
TYPE_SCTP_FUNC(sctp_sf_error_closed), \
|
|
/* SCTP_STATE_COOKIE_ECHOED */ \
|
|
TYPE_SCTP_FUNC(sctp_sf_error_closed), \
|
|
/* SCTP_STATE_ESTABLISHED */ \
|
|
TYPE_SCTP_FUNC(sctp_sf_do_prm_reconf), \
|
|
/* SCTP_STATE_SHUTDOWN_PENDING */ \
|
|
TYPE_SCTP_FUNC(sctp_sf_do_prm_reconf), \
|
|
/* SCTP_STATE_SHUTDOWN_SENT */ \
|
|
TYPE_SCTP_FUNC(sctp_sf_do_prm_reconf), \
|
|
/* SCTP_STATE_SHUTDOWN_RECEIVED */ \
|
|
TYPE_SCTP_FUNC(sctp_sf_do_prm_reconf), \
|
|
/* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
|
|
TYPE_SCTP_FUNC(sctp_sf_error_shutdown), \
|
|
} /* 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] = {
|
|
TYPE_SCTP_PRIMITIVE_ASSOCIATE,
|
|
TYPE_SCTP_PRIMITIVE_SHUTDOWN,
|
|
TYPE_SCTP_PRIMITIVE_ABORT,
|
|
TYPE_SCTP_PRIMITIVE_SEND,
|
|
TYPE_SCTP_PRIMITIVE_REQUESTHEARTBEAT,
|
|
TYPE_SCTP_PRIMITIVE_ASCONF,
|
|
TYPE_SCTP_PRIMITIVE_RECONF,
|
|
};
|
|
|
|
#define TYPE_SCTP_OTHER_NO_PENDING_TSN { \
|
|
/* SCTP_STATE_CLOSED */ \
|
|
TYPE_SCTP_FUNC(sctp_sf_ignore_other), \
|
|
/* SCTP_STATE_COOKIE_WAIT */ \
|
|
TYPE_SCTP_FUNC(sctp_sf_ignore_other), \
|
|
/* SCTP_STATE_COOKIE_ECHOED */ \
|
|
TYPE_SCTP_FUNC(sctp_sf_ignore_other), \
|
|
/* SCTP_STATE_ESTABLISHED */ \
|
|
TYPE_SCTP_FUNC(sctp_sf_do_no_pending_tsn), \
|
|
/* SCTP_STATE_SHUTDOWN_PENDING */ \
|
|
TYPE_SCTP_FUNC(sctp_sf_do_9_2_start_shutdown), \
|
|
/* SCTP_STATE_SHUTDOWN_SENT */ \
|
|
TYPE_SCTP_FUNC(sctp_sf_ignore_other), \
|
|
/* SCTP_STATE_SHUTDOWN_RECEIVED */ \
|
|
TYPE_SCTP_FUNC(sctp_sf_do_9_2_shutdown_ack), \
|
|
/* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
|
|
TYPE_SCTP_FUNC(sctp_sf_ignore_other), \
|
|
}
|
|
|
|
#define TYPE_SCTP_OTHER_ICMP_PROTO_UNREACH { \
|
|
/* SCTP_STATE_CLOSED */ \
|
|
TYPE_SCTP_FUNC(sctp_sf_ignore_other), \
|
|
/* SCTP_STATE_COOKIE_WAIT */ \
|
|
TYPE_SCTP_FUNC(sctp_sf_cookie_wait_icmp_abort), \
|
|
/* SCTP_STATE_COOKIE_ECHOED */ \
|
|
TYPE_SCTP_FUNC(sctp_sf_ignore_other), \
|
|
/* SCTP_STATE_ESTABLISHED */ \
|
|
TYPE_SCTP_FUNC(sctp_sf_ignore_other), \
|
|
/* SCTP_STATE_SHUTDOWN_PENDING */ \
|
|
TYPE_SCTP_FUNC(sctp_sf_ignore_other), \
|
|
/* SCTP_STATE_SHUTDOWN_SENT */ \
|
|
TYPE_SCTP_FUNC(sctp_sf_ignore_other), \
|
|
/* SCTP_STATE_SHUTDOWN_RECEIVED */ \
|
|
TYPE_SCTP_FUNC(sctp_sf_ignore_other), \
|
|
/* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
|
|
TYPE_SCTP_FUNC(sctp_sf_ignore_other), \
|
|
}
|
|
|
|
static const struct sctp_sm_table_entry
|
|
other_event_table[SCTP_NUM_OTHER_TYPES][SCTP_STATE_NUM_STATES] = {
|
|
TYPE_SCTP_OTHER_NO_PENDING_TSN,
|
|
TYPE_SCTP_OTHER_ICMP_PROTO_UNREACH,
|
|
};
|
|
|
|
#define TYPE_SCTP_EVENT_TIMEOUT_NONE { \
|
|
/* SCTP_STATE_CLOSED */ \
|
|
TYPE_SCTP_FUNC(sctp_sf_bug), \
|
|
/* SCTP_STATE_COOKIE_WAIT */ \
|
|
TYPE_SCTP_FUNC(sctp_sf_bug), \
|
|
/* SCTP_STATE_COOKIE_ECHOED */ \
|
|
TYPE_SCTP_FUNC(sctp_sf_bug), \
|
|
/* SCTP_STATE_ESTABLISHED */ \
|
|
TYPE_SCTP_FUNC(sctp_sf_bug), \
|
|
/* SCTP_STATE_SHUTDOWN_PENDING */ \
|
|
TYPE_SCTP_FUNC(sctp_sf_bug), \
|
|
/* SCTP_STATE_SHUTDOWN_SENT */ \
|
|
TYPE_SCTP_FUNC(sctp_sf_bug), \
|
|
/* SCTP_STATE_SHUTDOWN_RECEIVED */ \
|
|
TYPE_SCTP_FUNC(sctp_sf_bug), \
|
|
/* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
|
|
TYPE_SCTP_FUNC(sctp_sf_bug), \
|
|
}
|
|
|
|
#define TYPE_SCTP_EVENT_TIMEOUT_T1_COOKIE { \
|
|
/* SCTP_STATE_CLOSED */ \
|
|
TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
|
|
/* SCTP_STATE_COOKIE_WAIT */ \
|
|
TYPE_SCTP_FUNC(sctp_sf_bug), \
|
|
/* SCTP_STATE_COOKIE_ECHOED */ \
|
|
TYPE_SCTP_FUNC(sctp_sf_t1_cookie_timer_expire), \
|
|
/* SCTP_STATE_ESTABLISHED */ \
|
|
TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
|
|
/* SCTP_STATE_SHUTDOWN_PENDING */ \
|
|
TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
|
|
/* SCTP_STATE_SHUTDOWN_SENT */ \
|
|
TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
|
|
/* SCTP_STATE_SHUTDOWN_RECEIVED */ \
|
|
TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
|
|
/* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
|
|
TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
|
|
}
|
|
|
|
#define TYPE_SCTP_EVENT_TIMEOUT_T1_INIT { \
|
|
/* SCTP_STATE_CLOSED */ \
|
|
TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
|
|
/* SCTP_STATE_COOKIE_WAIT */ \
|
|
TYPE_SCTP_FUNC(sctp_sf_t1_init_timer_expire), \
|
|
/* SCTP_STATE_COOKIE_ECHOED */ \
|
|
TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
|
|
/* SCTP_STATE_ESTABLISHED */ \
|
|
TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
|
|
/* SCTP_STATE_SHUTDOWN_PENDING */ \
|
|
TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
|
|
/* SCTP_STATE_SHUTDOWN_SENT */ \
|
|
TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
|
|
/* SCTP_STATE_SHUTDOWN_RECEIVED */ \
|
|
TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
|
|
/* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
|
|
TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
|
|
}
|
|
|
|
#define TYPE_SCTP_EVENT_TIMEOUT_T2_SHUTDOWN { \
|
|
/* SCTP_STATE_CLOSED */ \
|
|
TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
|
|
/* SCTP_STATE_COOKIE_WAIT */ \
|
|
TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
|
|
/* SCTP_STATE_COOKIE_ECHOED */ \
|
|
TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
|
|
/* SCTP_STATE_ESTABLISHED */ \
|
|
TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
|
|
/* SCTP_STATE_SHUTDOWN_PENDING */ \
|
|
TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
|
|
/* SCTP_STATE_SHUTDOWN_SENT */ \
|
|
TYPE_SCTP_FUNC(sctp_sf_t2_timer_expire), \
|
|
/* SCTP_STATE_SHUTDOWN_RECEIVED */ \
|
|
TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
|
|
/* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
|
|
TYPE_SCTP_FUNC(sctp_sf_t2_timer_expire), \
|
|
}
|
|
|
|
#define TYPE_SCTP_EVENT_TIMEOUT_T3_RTX { \
|
|
/* SCTP_STATE_CLOSED */ \
|
|
TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
|
|
/* SCTP_STATE_COOKIE_WAIT */ \
|
|
TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
|
|
/* SCTP_STATE_COOKIE_ECHOED */ \
|
|
TYPE_SCTP_FUNC(sctp_sf_do_6_3_3_rtx), \
|
|
/* SCTP_STATE_ESTABLISHED */ \
|
|
TYPE_SCTP_FUNC(sctp_sf_do_6_3_3_rtx), \
|
|
/* SCTP_STATE_SHUTDOWN_PENDING */ \
|
|
TYPE_SCTP_FUNC(sctp_sf_do_6_3_3_rtx), \
|
|
/* SCTP_STATE_SHUTDOWN_SENT */ \
|
|
TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
|
|
/* SCTP_STATE_SHUTDOWN_RECEIVED */ \
|
|
TYPE_SCTP_FUNC(sctp_sf_do_6_3_3_rtx), \
|
|
/* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
|
|
TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
|
|
}
|
|
|
|
#define TYPE_SCTP_EVENT_TIMEOUT_T4_RTO { \
|
|
/* SCTP_STATE_CLOSED */ \
|
|
TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
|
|
/* SCTP_STATE_COOKIE_WAIT */ \
|
|
TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
|
|
/* SCTP_STATE_COOKIE_ECHOED */ \
|
|
TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
|
|
/* SCTP_STATE_ESTABLISHED */ \
|
|
TYPE_SCTP_FUNC(sctp_sf_t4_timer_expire), \
|
|
/* SCTP_STATE_SHUTDOWN_PENDING */ \
|
|
TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
|
|
/* SCTP_STATE_SHUTDOWN_SENT */ \
|
|
TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
|
|
/* SCTP_STATE_SHUTDOWN_RECEIVED */ \
|
|
TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
|
|
/* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
|
|
TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
|
|
}
|
|
|
|
#define TYPE_SCTP_EVENT_TIMEOUT_T5_SHUTDOWN_GUARD { \
|
|
/* SCTP_STATE_CLOSED */ \
|
|
TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
|
|
/* SCTP_STATE_COOKIE_WAIT */ \
|
|
TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
|
|
/* SCTP_STATE_COOKIE_ECHOED */ \
|
|
TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
|
|
/* SCTP_STATE_ESTABLISHED */ \
|
|
TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
|
|
/* SCTP_STATE_SHUTDOWN_PENDING */ \
|
|
TYPE_SCTP_FUNC(sctp_sf_t5_timer_expire), \
|
|
/* SCTP_STATE_SHUTDOWN_SENT */ \
|
|
TYPE_SCTP_FUNC(sctp_sf_t5_timer_expire), \
|
|
/* SCTP_STATE_SHUTDOWN_RECEIVED */ \
|
|
TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
|
|
/* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
|
|
TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
|
|
}
|
|
|
|
#define TYPE_SCTP_EVENT_TIMEOUT_HEARTBEAT { \
|
|
/* SCTP_STATE_CLOSED */ \
|
|
TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
|
|
/* SCTP_STATE_COOKIE_WAIT */ \
|
|
TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
|
|
/* SCTP_STATE_COOKIE_ECHOED */ \
|
|
TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
|
|
/* SCTP_STATE_ESTABLISHED */ \
|
|
TYPE_SCTP_FUNC(sctp_sf_sendbeat_8_3), \
|
|
/* SCTP_STATE_SHUTDOWN_PENDING */ \
|
|
TYPE_SCTP_FUNC(sctp_sf_sendbeat_8_3), \
|
|
/* SCTP_STATE_SHUTDOWN_SENT */ \
|
|
TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
|
|
/* SCTP_STATE_SHUTDOWN_RECEIVED */ \
|
|
TYPE_SCTP_FUNC(sctp_sf_sendbeat_8_3), \
|
|
/* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
|
|
TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
|
|
}
|
|
|
|
#define TYPE_SCTP_EVENT_TIMEOUT_SACK { \
|
|
/* SCTP_STATE_CLOSED */ \
|
|
TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
|
|
/* SCTP_STATE_COOKIE_WAIT */ \
|
|
TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
|
|
/* SCTP_STATE_COOKIE_ECHOED */ \
|
|
TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
|
|
/* SCTP_STATE_ESTABLISHED */ \
|
|
TYPE_SCTP_FUNC(sctp_sf_do_6_2_sack), \
|
|
/* SCTP_STATE_SHUTDOWN_PENDING */ \
|
|
TYPE_SCTP_FUNC(sctp_sf_do_6_2_sack), \
|
|
/* SCTP_STATE_SHUTDOWN_SENT */ \
|
|
TYPE_SCTP_FUNC(sctp_sf_do_6_2_sack), \
|
|
/* SCTP_STATE_SHUTDOWN_RECEIVED */ \
|
|
TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
|
|
/* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
|
|
TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
|
|
}
|
|
|
|
#define TYPE_SCTP_EVENT_TIMEOUT_AUTOCLOSE { \
|
|
/* SCTP_STATE_CLOSED */ \
|
|
TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
|
|
/* SCTP_STATE_COOKIE_WAIT */ \
|
|
TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
|
|
/* SCTP_STATE_COOKIE_ECHOED */ \
|
|
TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
|
|
/* SCTP_STATE_ESTABLISHED */ \
|
|
TYPE_SCTP_FUNC(sctp_sf_autoclose_timer_expire), \
|
|
/* SCTP_STATE_SHUTDOWN_PENDING */ \
|
|
TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
|
|
/* SCTP_STATE_SHUTDOWN_SENT */ \
|
|
TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
|
|
/* SCTP_STATE_SHUTDOWN_RECEIVED */ \
|
|
TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
|
|
/* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
|
|
TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
|
|
}
|
|
|
|
#define TYPE_SCTP_EVENT_TIMEOUT_RECONF { \
|
|
/* SCTP_STATE_CLOSED */ \
|
|
TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
|
|
/* SCTP_STATE_COOKIE_WAIT */ \
|
|
TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
|
|
/* SCTP_STATE_COOKIE_ECHOED */ \
|
|
TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
|
|
/* SCTP_STATE_ESTABLISHED */ \
|
|
TYPE_SCTP_FUNC(sctp_sf_send_reconf), \
|
|
/* SCTP_STATE_SHUTDOWN_PENDING */ \
|
|
TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
|
|
/* SCTP_STATE_SHUTDOWN_SENT */ \
|
|
TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
|
|
/* SCTP_STATE_SHUTDOWN_RECEIVED */ \
|
|
TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
|
|
/* SCTP_STATE_SHUTDOWN_ACK_SENT */ \
|
|
TYPE_SCTP_FUNC(sctp_sf_timer_ignore), \
|
|
}
|
|
|
|
static const struct sctp_sm_table_entry
|
|
timeout_event_table[SCTP_NUM_TIMEOUT_TYPES][SCTP_STATE_NUM_STATES] = {
|
|
TYPE_SCTP_EVENT_TIMEOUT_NONE,
|
|
TYPE_SCTP_EVENT_TIMEOUT_T1_COOKIE,
|
|
TYPE_SCTP_EVENT_TIMEOUT_T1_INIT,
|
|
TYPE_SCTP_EVENT_TIMEOUT_T2_SHUTDOWN,
|
|
TYPE_SCTP_EVENT_TIMEOUT_T3_RTX,
|
|
TYPE_SCTP_EVENT_TIMEOUT_T4_RTO,
|
|
TYPE_SCTP_EVENT_TIMEOUT_T5_SHUTDOWN_GUARD,
|
|
TYPE_SCTP_EVENT_TIMEOUT_HEARTBEAT,
|
|
TYPE_SCTP_EVENT_TIMEOUT_RECONF,
|
|
TYPE_SCTP_EVENT_TIMEOUT_SACK,
|
|
TYPE_SCTP_EVENT_TIMEOUT_AUTOCLOSE,
|
|
};
|
|
|
|
static const struct sctp_sm_table_entry *sctp_chunk_event_lookup(
|
|
struct net *net,
|
|
enum sctp_cid cid,
|
|
enum sctp_state state)
|
|
{
|
|
if (state > SCTP_STATE_MAX)
|
|
return &bug;
|
|
|
|
if (cid == SCTP_CID_I_DATA)
|
|
cid = SCTP_CID_DATA;
|
|
|
|
if (cid <= SCTP_CID_BASE_MAX)
|
|
return &chunk_event_table[cid][state];
|
|
|
|
if (net->sctp.prsctp_enable) {
|
|
if (cid == SCTP_CID_FWD_TSN || cid == SCTP_CID_I_FWD_TSN)
|
|
return &prsctp_chunk_event_table[0][state];
|
|
}
|
|
|
|
if (net->sctp.addip_enable) {
|
|
if (cid == SCTP_CID_ASCONF)
|
|
return &addip_chunk_event_table[0][state];
|
|
|
|
if (cid == SCTP_CID_ASCONF_ACK)
|
|
return &addip_chunk_event_table[1][state];
|
|
}
|
|
|
|
if (net->sctp.reconf_enable)
|
|
if (cid == SCTP_CID_RECONF)
|
|
return &reconf_chunk_event_table[0][state];
|
|
|
|
if (net->sctp.auth_enable) {
|
|
if (cid == SCTP_CID_AUTH)
|
|
return &auth_chunk_event_table[0][state];
|
|
}
|
|
|
|
return &chunk_event_table_unknown[state];
|
|
}
|