208  * association (and thus the association enters the CLOSED state).
274 	 * association (and thus the association enters the CLOSED  in sctp_sf_do_4_C()
296  * We are the side that is being asked for an association.
298  * Section: 5.1 Normal Establishment of an Association, B
343 	 * error, but since we don't have an association, we'll  in sctp_sf_do_5_1B_init()
413 	/* Update socket peer label if first association. */  in sctp_sf_do_5_1B_init()
473 	 * new association.  Otherwise, "Z" will be vulnerable to resource  in sctp_sf_do_5_1B_init()
490  * We are the side that is initiating the association.
492  * Section: 5.1 Normal Establishment of an Association, C
506  *   association by transmitting an ABORT.
556 		 * the association.  in sctp_sf_do_5_1C_ack()
577 		 *    down an association in an authenticated way only, the  in sctp_sf_do_5_1C_ack()
579 		 *    tearing down the association.  in sctp_sf_do_5_1C_ack()
583 		 * can't destroy this association just because the packet  in sctp_sf_do_5_1C_ack()
618 	/* SCTP-AUTH: generate the association shared keys so that  in sctp_sf_do_5_1C_ack()
645 	 * authentication.  We've just recreated the association using  in sctp_auth_chunk_verify()
669  * We are the side that is being asked for an association.
671  * Section: 5.1 Normal Establishment of an Association, D
763 	 * [We should abort the association. --piggy]  in sctp_sf_do_5_1D_ce()
791 	 * Re-build the bind address for the association is done in  in sctp_sf_do_5_1D_ce()
794 	/* This is a brand-new association, so these are not yet side  in sctp_sf_do_5_1D_ce()
804 	 * sctp_process_init, set up the association shared keys as  in sctp_sf_do_5_1D_ce()
820 	/* RFC 2960 5.1 Normal Establishment of an Association  in sctp_sf_do_5_1D_ce()
900  * We are the side that is asking for an association.
902  * RFC 2960 5.1 Normal Establishment of an Association
907  *    establishment of the association with a Communication Up
952 	/* RFC 2960 5.1 Normal Establishment of an Association  in sctp_sf_do_5_1E_ca()
970 	 * establishment of the association with a Communication Up  in sctp_sf_do_5_1E_ca()
1071 		/* Set transport error counter and association error counter  in sctp_sf_sendbeat_8_3()
1220  * clear the association overall error count as well (as defined
1270 			net_warn_ratelimited("%s association %p could not find address %pI6\n",  in sctp_sf_backbeat_8_3()
1275 			net_warn_ratelimited("%s association %p could not find address %pI4\n",  in sctp_sf_backbeat_8_3()
1351 	/* Association is NULL since this may be a restart attack and we  in sctp_sf_send_restart_abort()
1399 	 * unexpected INIT adds new addresses to the association. If new  in sctp_sf_check_restart_addrs()
1400 	 * addresses are added to the association, the endpoint MUST respond  in sctp_sf_check_restart_addrs()
1456 	 * existing parameters of the association (e.g. number of  in sctp_tietags_populate()
1588 	 * existing parameters of the association (e.g. number of  in sctp_sf_do_unexpected_init()
1591 	 * association.  in sctp_sf_do_unexpected_init()
1597 	/* Update socket peer label if first association. */  in sctp_sf_do_unexpected_init()
1672 	 * "Z" MUST NOT allocate any resources for this new association.  in sctp_sf_do_unexpected_init()
1699  * association with the other endpoint.
1712  * a TCB exists will resolve the duplicate INITs to a single association.
1751  * this association, the endpoint shall generate an INIT ACK with a
1760  * existing parameters of the association (e.g. number of outbound
1764  * actions, i.e., the existing association, including its current state,
1767  * Note: Only when a TCB exists and the association is not in a COOKIE-
1768  * WAIT state are the Tie-Tags populated.  For a normal association INIT
1868 	/* new_asoc is a brand-new association, so these are not yet  in sctp_sf_do_dupcook_a()
1891 	 * association but instead resend the SHUTDOWN ACK and send an ERROR  in sctp_sf_do_dupcook_a()
1927 	/* Update the content of current association. */  in sctp_sf_do_dupcook_a()
1935 	/* Report association restart to upper layer. */  in sctp_sf_do_dupcook_a()
1972  *   B) In this case, both sides may be attempting to start an association
1988 	/* new_asoc is a brand-new association, so these are not yet  in sctp_sf_do_dupcook_b()
2008 	/* Update the content of current association.  */  in sctp_sf_do_dupcook_b()
2018 	/* RFC 2960 5.1 Normal Establishment of an Association  in sctp_sf_do_dupcook_b()
2025 	 * we are not guaranteed to have set the association id of the real  in sctp_sf_do_dupcook_b()
2026 	 * association and so these notifications need to be delayed until  in sctp_sf_do_dupcook_b()
2027 	 * the association id is allocated.  in sctp_sf_do_dupcook_b()
2115 		/* RFC 2960 5.1 Normal Establishment of an Association  in sctp_sf_do_dupcook_d()
2232 	 * current association, consider the State Cookie valid even if  in sctp_sf_do_5_2_4_dupcook()
2242 	 * [We should abort the association. --piggy]  in sctp_sf_do_5_2_4_dupcook()
2262 	/* Update socket peer label if first association. */  in sctp_sf_do_5_2_4_dupcook()
2272 	 * current association.  in sctp_sf_do_5_2_4_dupcook()
2277 	case 'A': /* Association restart. */  in sctp_sf_do_5_2_4_dupcook()
2302 	/* Delete the temporary new association. */  in sctp_sf_do_5_2_4_dupcook()
2306 	/* Restore association pointer to provide SCTP command interpreter  in sctp_sf_do_5_2_4_dupcook()
2341 	 *    association that doesn't exist, it MUST silently discard it.  in sctp_sf_shutdown_pending_abort()
2387 	 *    association that doesn't exist, it MUST silently discard it.  in sctp_sf_shutdown_sent_abort()
2495  * If the association is in the COOKIE-ECHOED state, the endpoint may elect
2613  * remove the association from its record, and shall report the
2657 	 *    association that doesn't exist, it MUST silently discard it.  in sctp_sf_do_9_1_abort()
2731 	 *    association that doesn't exist, it MUST silently discard it.  in sctp_sf_cookie_wait_abort()
2782  * Stop T1 timer and abort association with "INIT failed".
2877 	 * send, terminating the association and respond to the  in sctp_sf_do_9_2_shutdown()
2962 	 * send, terminating the association and respond to the  in sctp_sf_do_9_2_shut_ctsn()
2982  * that belong to this association, it should discard the INIT chunk and
3420 	 * send, terminating the association and respond to the  in sctp_sf_eat_sack_6_2()
3592  * peer, and remove all record of the association.
3649 	/* ...and remove all record of the association. */  in sctp_sf_do_9_2_final()
3848 	/* Although we do have an association in this case, it corresponds  in sctp_sf_do_8_5_1_E_sa()
3849 	 * to a restarted association. So the packet is treated as an OOTB  in sctp_sf_do_8_5_1_E_sa()
3851 	 * called with a NULL association.  in sctp_sf_do_8_5_1_E_sa()
3902 	 * the endpoint stored in a new association variable  in sctp_sf_do_asconf()
4053 	 * outstanding the endpoint MUST ABORT the association. Note that a  in sctp_sf_do_asconf_ack()
4330  *    during association setup, the AUTH chunk and all chunks after it MUST
4705 	 *    down an association in an authenticated way only, the  in sctp_sf_abort_violation()
4707 	 *    tearing down the association.  in sctp_sf_abort_violation()
4711 	 * can't destroy this association just because the packet  in sctp_sf_abort_violation()
4805  * Generate an  ABORT chunk and terminate the association.
4885  * when we have an association and we receive bundled INIT-ACK, or
4914  * -> association id [,destination transport addr list] [,outbound stream
4917  * This primitive allows the upper layer to initiate an association to a
4928  * An association id, which is a local handle to the SCTP association,
4929  * will be returned on successful establishment of the association. If
4930  * SCTP is not able to open an SCTP association with the peer endpoint,
4935  * Other association parameters may be returned, including the
4951  * addresses of the peer endpoint with which the association is to be
4980 	/* RFC 2960 5.1 Normal Establishment of an Association  in sctp_sf_do_prm_asoc()
5020  * Format: SEND(association id, buffer address, byte count [,context]
5029  *  o association id - local handle to the SCTP association
5094  * Format: SHUTDOWN(association id)
5097  * Gracefully closes an association. Any locally queued user data
5098  * will be delivered to the peer. The association will be terminated only
5100  * will be returned on successful termination of the association. If
5101  * attempting to terminate the association results in a failure, an error
5106  *  o association id - local handle to the SCTP association
5124 	/* From 9.2 Shutdown of an Association  in sctp_sf_do_9_2_prm_shutdown()
5150  * Format: Abort(association id [, cause code])
5153  * Ungracefully closes an association. Any locally queued user data
5155  * will be returned on successful abortion of the association. If
5156  * attempting to abort the association results in a failure, an error
5161  *  o association id - local handle to the SCTP association
5179 	/* From 9.1 Abort of an Association  in sctp_sf_do_9_1_prm_abort()
5198 	/* Delete the established association. */  in sctp_sf_do_9_1_prm_abort()
5208 /* We tried an illegal operation on an association which is closed.  */
5220 /* We tried an illegal operation on an association which is shutting
5341 	/* Delete the established association. */  in sctp_sf_cookie_wait_prm_abort()
5466  * Format: REQUESTHEARTBEAT(association id, destination transport address)
5471  * destination transport address of the given association. The returned
5477  * o association id - local handle to the SCTP association
5480  *   association on which a heartbeat should be issued.
5498 	 *    transport address of a given association.  in sctp_sf_do_prm_requestheartbeat()
6004  * SHUTDOWN chunk to the protocol parameter 'Association.Max.Retrans'.
6007  * thus the association enters the CLOSED state).  The reception of any
6108 	/* ADDIP 4.1 B2) Increment the association error counters and perform  in sctp_sf_t4_timer_expire()
6109 	 * endpoint failure detection on the association as defined in  in sctp_sf_t4_timer_expire()
6111 	 * association error counter is incremented in SCTP_CMD_STRIKE.  in sctp_sf_t4_timer_expire()
6153  * At the expiration of this timer the sender SHOULD abort the association
6189  * the association is automatically closed by starting the shutdown process.
6205 	/* From 9.2 Shutdown of an Association  in sctp_sf_autoclose_timer_expire()
6266  * when the association is in the wrong state.   This event should
6375 	 * association exists, otherwise, use the peer's vtag.  in sctp_ootb_pkt_new()