209  * association (and thus the association enters the CLOSED state).
275 	 * association (and thus the association enters the CLOSED  in sctp_sf_do_4_C()
297  * We are the side that is being asked for an association.
299  * Section: 5.1 Normal Establishment of an Association, B
344 	 * error, but since we don't have an association, we'll  in sctp_sf_do_5_1B_init()
414 	/* Update socket peer label if first association. */  in sctp_sf_do_5_1B_init()
474 	 * new association.  Otherwise, "Z" will be vulnerable to resource  in sctp_sf_do_5_1B_init()
491  * We are the side that is initiating the association.
493  * Section: 5.1 Normal Establishment of an Association, C
507  *   association by transmitting an ABORT.
557 		 * the association.  in sctp_sf_do_5_1C_ack()
578 		 *    down an association in an authenticated way only, the  in sctp_sf_do_5_1C_ack()
580 		 *    tearing down the association.  in sctp_sf_do_5_1C_ack()
584 		 * can't destroy this association just because the packet  in sctp_sf_do_5_1C_ack()
619 	/* SCTP-AUTH: generate the association shared keys so that  in sctp_sf_do_5_1C_ack()
646 	 * authentication.  We've just recreated the association using  in sctp_auth_chunk_verify()
670  * We are the side that is being asked for an association.
672  * Section: 5.1 Normal Establishment of an Association, D
764 	 * [We should abort the association. --piggy]  in sctp_sf_do_5_1D_ce()
792 	 * Re-build the bind address for the association is done in  in sctp_sf_do_5_1D_ce()
795 	/* This is a brand-new association, so these are not yet side  in sctp_sf_do_5_1D_ce()
805 	 * sctp_process_init, set up the association shared keys as  in sctp_sf_do_5_1D_ce()
821 	/* RFC 2960 5.1 Normal Establishment of an Association  in sctp_sf_do_5_1D_ce()
901  * We are the side that is asking for an association.
903  * RFC 2960 5.1 Normal Establishment of an Association
908  *    establishment of the association with a Communication Up
953 	/* RFC 2960 5.1 Normal Establishment of an Association  in sctp_sf_do_5_1E_ca()
971 	 * establishment of the association with a Communication Up  in sctp_sf_do_5_1E_ca()
1072 		/* Set transport error counter and association error counter  in sctp_sf_sendbeat_8_3()
1221  * clear the association overall error count as well (as defined
1271 			net_warn_ratelimited("%s association %p could not find address %pI6\n",  in sctp_sf_backbeat_8_3()
1276 			net_warn_ratelimited("%s association %p could not find address %pI4\n",  in sctp_sf_backbeat_8_3()
1352 	/* Association is NULL since this may be a restart attack and we  in sctp_sf_send_restart_abort()
1400 	 * unexpected INIT adds new addresses to the association. If new  in sctp_sf_check_restart_addrs()
1401 	 * addresses are added to the association, the endpoint MUST respond  in sctp_sf_check_restart_addrs()
1457 	 * existing parameters of the association (e.g. number of  in sctp_tietags_populate()
1589 	 * existing parameters of the association (e.g. number of  in sctp_sf_do_unexpected_init()
1592 	 * association.  in sctp_sf_do_unexpected_init()
1598 	/* Update socket peer label if first association. */  in sctp_sf_do_unexpected_init()
1673 	 * "Z" MUST NOT allocate any resources for this new association.  in sctp_sf_do_unexpected_init()
1700  * association with the other endpoint.
1713  * a TCB exists will resolve the duplicate INITs to a single association.
1752  * this association, the endpoint shall generate an INIT ACK with a
1761  * existing parameters of the association (e.g. number of outbound
1765  * actions, i.e., the existing association, including its current state,
1768  * Note: Only when a TCB exists and the association is not in a COOKIE-
1769  * WAIT state are the Tie-Tags populated.  For a normal association INIT
1869 	/* new_asoc is a brand-new association, so these are not yet  in sctp_sf_do_dupcook_a()
1892 	 * association but instead resend the SHUTDOWN ACK and send an ERROR  in sctp_sf_do_dupcook_a()
1928 	/* Update the content of current association. */  in sctp_sf_do_dupcook_a()
1936 	/* Report association restart to upper layer. */  in sctp_sf_do_dupcook_a()
1973  *   B) In this case, both sides may be attempting to start an association
1989 	/* new_asoc is a brand-new association, so these are not yet  in sctp_sf_do_dupcook_b()
2009 	/* Update the content of current association.  */  in sctp_sf_do_dupcook_b()
2019 	/* RFC 2960 5.1 Normal Establishment of an Association  in sctp_sf_do_dupcook_b()
2026 	 * we are not guaranteed to have set the association id of the real  in sctp_sf_do_dupcook_b()
2027 	 * association and so these notifications need to be delayed until  in sctp_sf_do_dupcook_b()
2028 	 * the association id is allocated.  in sctp_sf_do_dupcook_b()
2116 		/* RFC 2960 5.1 Normal Establishment of an Association  in sctp_sf_do_dupcook_d()
2233 	 * current association, consider the State Cookie valid even if  in sctp_sf_do_5_2_4_dupcook()
2243 	 * [We should abort the association. --piggy]  in sctp_sf_do_5_2_4_dupcook()
2267 	 * current association.  in sctp_sf_do_5_2_4_dupcook()
2271 	/* In cases C and E the association doesn't enter the ESTABLISHED  in sctp_sf_do_5_2_4_dupcook()
2275 	case 'A': /* Association restart. */  in sctp_sf_do_5_2_4_dupcook()
2278 		/* Update socket peer label if first association. */  in sctp_sf_do_5_2_4_dupcook()
2288 	case 'A': /* Association restart. */  in sctp_sf_do_5_2_4_dupcook()
2313 	/* Delete the temporary new association. */  in sctp_sf_do_5_2_4_dupcook()
2317 	/* Restore association pointer to provide SCTP command interpreter  in sctp_sf_do_5_2_4_dupcook()
2352 	 *    association that doesn't exist, it MUST silently discard it.  in sctp_sf_shutdown_pending_abort()
2398 	 *    association that doesn't exist, it MUST silently discard it.  in sctp_sf_shutdown_sent_abort()
2506  * If the association is in the COOKIE-ECHOED state, the endpoint may elect
2624  * remove the association from its record, and shall report the
2668 	 *    association that doesn't exist, it MUST silently discard it.  in sctp_sf_do_9_1_abort()
2742 	 *    association that doesn't exist, it MUST silently discard it.  in sctp_sf_cookie_wait_abort()
2793  * Stop T1 timer and abort association with "INIT failed".
2888 	 * send, terminating the association and respond to the  in sctp_sf_do_9_2_shutdown()
2973 	 * send, terminating the association and respond to the  in sctp_sf_do_9_2_shut_ctsn()
2993  * that belong to this association, it should discard the INIT chunk and
3431 	 * send, terminating the association and respond to the  in sctp_sf_eat_sack_6_2()
3603  * peer, and remove all record of the association.
3660 	/* ...and remove all record of the association. */  in sctp_sf_do_9_2_final()
3859 	/* Although we do have an association in this case, it corresponds  in sctp_sf_do_8_5_1_E_sa()
3860 	 * to a restarted association. So the packet is treated as an OOTB  in sctp_sf_do_8_5_1_E_sa()
3862 	 * called with a NULL association.  in sctp_sf_do_8_5_1_E_sa()
3913 	 * the endpoint stored in a new association variable  in sctp_sf_do_asconf()
4064 	 * outstanding the endpoint MUST ABORT the association. Note that a  in sctp_sf_do_asconf_ack()
4341  *    during association setup, the AUTH chunk and all chunks after it MUST
4716 	 *    down an association in an authenticated way only, the  in sctp_sf_abort_violation()
4718 	 *    tearing down the association.  in sctp_sf_abort_violation()
4722 	 * can't destroy this association just because the packet  in sctp_sf_abort_violation()
4816  * Generate an  ABORT chunk and terminate the association.
4896  * when we have an association and we receive bundled INIT-ACK, or
4925  * -> association id [,destination transport addr list] [,outbound stream
4928  * This primitive allows the upper layer to initiate an association to a
4939  * An association id, which is a local handle to the SCTP association,
4940  * will be returned on successful establishment of the association. If
4941  * SCTP is not able to open an SCTP association with the peer endpoint,
4946  * Other association parameters may be returned, including the
4962  * addresses of the peer endpoint with which the association is to be
4991 	/* RFC 2960 5.1 Normal Establishment of an Association  in sctp_sf_do_prm_asoc()
5031  * Format: SEND(association id, buffer address, byte count [,context]
5040  *  o association id - local handle to the SCTP association
5105  * Format: SHUTDOWN(association id)
5108  * Gracefully closes an association. Any locally queued user data
5109  * will be delivered to the peer. The association will be terminated only
5111  * will be returned on successful termination of the association. If
5112  * attempting to terminate the association results in a failure, an error
5117  *  o association id - local handle to the SCTP association
5135 	/* From 9.2 Shutdown of an Association  in sctp_sf_do_9_2_prm_shutdown()
5161  * Format: Abort(association id [, cause code])
5164  * Ungracefully closes an association. Any locally queued user data
5166  * will be returned on successful abortion of the association. If
5167  * attempting to abort the association results in a failure, an error
5172  *  o association id - local handle to the SCTP association
5190 	/* From 9.1 Abort of an Association  in sctp_sf_do_9_1_prm_abort()
5209 	/* Delete the established association. */  in sctp_sf_do_9_1_prm_abort()
5219 /* We tried an illegal operation on an association which is closed.  */
5231 /* We tried an illegal operation on an association which is shutting
5352 	/* Delete the established association. */  in sctp_sf_cookie_wait_prm_abort()
5477  * Format: REQUESTHEARTBEAT(association id, destination transport address)
5482  * destination transport address of the given association. The returned
5488  * o association id - local handle to the SCTP association
5491  *   association on which a heartbeat should be issued.
5509 	 *    transport address of a given association.  in sctp_sf_do_prm_requestheartbeat()
6015  * SHUTDOWN chunk to the protocol parameter 'Association.Max.Retrans'.
6018  * thus the association enters the CLOSED state).  The reception of any
6119 	/* ADDIP 4.1 B2) Increment the association error counters and perform  in sctp_sf_t4_timer_expire()
6120 	 * endpoint failure detection on the association as defined in  in sctp_sf_t4_timer_expire()
6122 	 * association error counter is incremented in SCTP_CMD_STRIKE.  in sctp_sf_t4_timer_expire()
6164  * At the expiration of this timer the sender SHOULD abort the association
6200  * the association is automatically closed by starting the shutdown process.
6216 	/* From 9.2 Shutdown of an Association  in sctp_sf_autoclose_timer_expire()
6277  * when the association is in the wrong state.   This event should
6386 	 * association exists, otherwise, use the peer's vtag.  in sctp_ootb_pkt_new()