195  * association (and thus the association enters the CLOSED state).
261 	 * association (and thus the association enters the CLOSED  in sctp_sf_do_4_C()
283  * We are the side that is being asked for an association.
285  * Section: 5.1 Normal Establishment of an Association, B
316 	/* Update socket peer label if first association. */  in sctp_sf_do_5_1B_init()
349 	 * error, but since we don't have an association, we'll  in sctp_sf_do_5_1B_init()
459 	 * new association.  Otherwise, "Z" will be vulnerable to resource  in sctp_sf_do_5_1B_init()
476  * We are the side that is initiating the association.
478  * Section: 5.1 Normal Establishment of an Association, C
492  *   association by transmitting an ABORT.
542 		 * the association.  in sctp_sf_do_5_1C_ack()
563 		 *    down an association in an authenticated way only, the  in sctp_sf_do_5_1C_ack()
565 		 *    tearing down the association.  in sctp_sf_do_5_1C_ack()
569 		 * can't destroy this association just because the packet  in sctp_sf_do_5_1C_ack()
631 	 * authentication.  We've just recreated the association using  in sctp_auth_chunk_verify()
655  * We are the side that is being asked for an association.
657  * Section: 5.1 Normal Establishment of an Association, D
749 	 * [We should abort the association. --piggy]  in sctp_sf_do_5_1D_ce()
773 	 * Re-build the bind address for the association is done in  in sctp_sf_do_5_1D_ce()
776 	/* This is a brand-new association, so these are not yet side  in sctp_sf_do_5_1D_ce()
803 	/* RFC 2960 5.1 Normal Establishment of an Association  in sctp_sf_do_5_1D_ce()
883  * We are the side that is asking for an association.
885  * RFC 2960 5.1 Normal Establishment of an Association
890  *    establishment of the association with a Communication Up
933 	/* RFC 2960 5.1 Normal Establishment of an Association  in sctp_sf_do_5_1E_ca()
951 	 * establishment of the association with a Communication Up  in sctp_sf_do_5_1E_ca()
1052 		/* Set transport error counter and association error counter  in sctp_sf_sendbeat_8_3()
1176  * clear the association overall error count as well (as defined
1226 			net_warn_ratelimited("%s association %p could not find address %pI6\n",  in sctp_sf_backbeat_8_3()
1231 			net_warn_ratelimited("%s association %p could not find address %pI4\n",  in sctp_sf_backbeat_8_3()
1296 	/* Association is NULL since this may be a restart attack and we  in sctp_sf_send_restart_abort()
1344 	 * unexpected INIT adds new addresses to the association. If new  in sctp_sf_check_restart_addrs()
1345 	 * addresses are added to the association, the endpoint MUST respond  in sctp_sf_check_restart_addrs()
1401 	 * existing parameters of the association (e.g. number of  in sctp_tietags_populate()
1470 	/* Update socket peer label if first association. */  in sctp_sf_do_unexpected_init()
1495 	 * an association established.  in sctp_sf_do_unexpected_init()
1538 	 * existing parameters of the association (e.g. number of  in sctp_sf_do_unexpected_init()
1541 	 * association.  in sctp_sf_do_unexpected_init()
1616 	 * "Z" MUST NOT allocate any resources for this new association.  in sctp_sf_do_unexpected_init()
1643  * association with the other endpoint.
1656  * a TCB exists will resolve the duplicate INITs to a single association.
1695  * this association, the endpoint shall generate an INIT ACK with a
1704  * existing parameters of the association (e.g. number of outbound
1708  * actions, i.e., the existing association, including its current state,
1711  * Note: Only when a TCB exists and the association is not in a COOKIE-
1712  * WAIT state are the Tie-Tags populated.  For a normal association INIT
1788 	/* new_asoc is a brand-new association, so these are not yet  in sctp_sf_do_dupcook_a()
1812 	 * association but instead resend the SHUTDOWN ACK and send an ERROR  in sctp_sf_do_dupcook_a()
1848 	/* Update the content of current association. */  in sctp_sf_do_dupcook_a()
1869 	/* Report association restart to upper layer. */  in sctp_sf_do_dupcook_a()
1906  *   B) In this case, both sides may be attempting to start an association
1922 	/* new_asoc is a brand-new association, so these are not yet  in sctp_sf_do_dupcook_b()
1936 	/* Update the content of current association.  */  in sctp_sf_do_dupcook_b()
1950 	/* RFC 2960 5.1 Normal Establishment of an Association  in sctp_sf_do_dupcook_b()
1957 	 * we are not guaranteed to have set the association id of the real  in sctp_sf_do_dupcook_b()
1958 	 * association and so these notifications need to be delayed until  in sctp_sf_do_dupcook_b()
1959 	 * the association id is allocated.  in sctp_sf_do_dupcook_b()
2047 		/* RFC 2960 5.1 Normal Establishment of an Association  in sctp_sf_do_dupcook_d()
2164 	 * current association, consider the State Cookie valid even if  in sctp_sf_do_5_2_4_dupcook()
2174 	 * [We should abort the association. --piggy]  in sctp_sf_do_5_2_4_dupcook()
2194 	/* Update socket peer label if first association. */  in sctp_sf_do_5_2_4_dupcook()
2205 	 * current association.  in sctp_sf_do_5_2_4_dupcook()
2210 	case 'A': /* Association restart. */  in sctp_sf_do_5_2_4_dupcook()
2235 	/* Delete the tempory new association. */  in sctp_sf_do_5_2_4_dupcook()
2239 	/* Restore association pointer to provide SCTP command interpeter  in sctp_sf_do_5_2_4_dupcook()
2274 	 *    association that doesn't exist, it MUST silently discard it.  in sctp_sf_shutdown_pending_abort()
2320 	 *    association that doesn't exist, it MUST silently discard it.  in sctp_sf_shutdown_sent_abort()
2428  * If the association is in the COOKIE-ECHOED state, the endpoint may elect
2546  * remove the association from its record, and shall report the
2590 	 *    association that doesn't exist, it MUST silently discard it.  in sctp_sf_do_9_1_abort()
2664 	 *    association that doesn't exist, it MUST silently discard it.  in sctp_sf_cookie_wait_abort()
2715  * Stop T1 timer and abort association with "INIT failed".
2810 	 * send, terminating the association and respond to the  in sctp_sf_do_9_2_shutdown()
2895 	 * send, terminating the association and respond to the  in sctp_sf_do_9_2_shut_ctsn()
2915  * that belong to this association, it should discard the INIT chunk and
3335 	 * send, terminating the association and respond to the  in sctp_sf_eat_sack_6_2()
3468  * peer, and remove all record of the association.
3525 	/* ...and remove all record of the association. */  in sctp_sf_do_9_2_final()
3724 	/* Although we do have an association in this case, it corresponds  in sctp_sf_do_8_5_1_E_sa()
3725 	 * to a restarted association. So the packet is treated as an OOTB  in sctp_sf_do_8_5_1_E_sa()
3727 	 * called with a NULL association.  in sctp_sf_do_8_5_1_E_sa()
3778 	 * the endpoint stored in a new association variable  in sctp_sf_do_asconf()
3929 	 * outstanding the endpoint MUST ABORT the association. Note that a  in sctp_sf_do_asconf_ack()
4206  *    during association setup, the AUTH chunk and all chunks after it MUST
4581 	 *    down an association in an authenticated way only, the  in sctp_sf_abort_violation()
4583 	 *    tearing down the association.  in sctp_sf_abort_violation()
4587 	 * can't destroy this association just because the packet  in sctp_sf_abort_violation()
4681  * Generate an  ABORT chunk and terminate the association.
4761  * when we have an association and we receive bundled INIT-ACK, or
4793  * -> association id [,destination transport addr list] [,outbound stream
4796  * This primitive allows the upper layer to initiate an association to a
4807  * An association id, which is a local handle to the SCTP association,
4808  * will be returned on successful establishment of the association. If
4809  * SCTP is not able to open an SCTP association with the peer endpoint,
4814  * Other association parameters may be returned, including the
4830  * addresses of the peer endpoint with which the association is to be
4859 	/* RFC 2960 5.1 Normal Establishment of an Association  in sctp_sf_do_prm_asoc()
4899  * Format: SEND(association id, buffer address, byte count [,context]
4908  *  o association id - local handle to the SCTP association
4973  * Format: SHUTDOWN(association id)
4976  * Gracefully closes an association. Any locally queued user data
4977  * will be delivered to the peer. The association will be terminated only
4979  * will be returned on successful termination of the association. If
4980  * attempting to terminate the association results in a failure, an error
4985  *  o association id - local handle to the SCTP association
5003 	/* From 9.2 Shutdown of an Association  in sctp_sf_do_9_2_prm_shutdown()
5029  * Format: Abort(association id [, cause code])
5032  * Ungracefully closes an association. Any locally queued user data
5034  * will be returned on successful abortion of the association. If
5035  * attempting to abort the association results in a failure, an error
5040  *  o association id - local handle to the SCTP association
5058 	/* From 9.1 Abort of an Association  in sctp_sf_do_9_1_prm_abort()
5077 	/* Delete the established association. */  in sctp_sf_do_9_1_prm_abort()
5087 /* We tried an illegal operation on an association which is closed.  */
5099 /* We tried an illegal operation on an association which is shutting
5220 	/* Delete the established association. */  in sctp_sf_cookie_wait_prm_abort()
5345  * Format: REQUESTHEARTBEAT(association id, destination transport address)
5350  * destination transport address of the given association. The returned
5356  * o association id - local handle to the SCTP association
5359  *   association on which a heartbeat should be issued.
5377 	 *    transport address of a given association.  in sctp_sf_do_prm_requestheartbeat()
5883  * SHUTDOWN chunk to the protocol parameter 'Association.Max.Retrans'.
5886  * thus the association enters the CLOSED state).  The reception of any
5987 	/* ADDIP 4.1 B2) Increment the association error counters and perform  in sctp_sf_t4_timer_expire()
5988 	 * endpoint failure detection on the association as defined in  in sctp_sf_t4_timer_expire()
5990 	 * association error counter is incremented in SCTP_CMD_STRIKE.  in sctp_sf_t4_timer_expire()
6032  * At the expiration of this timer the sender SHOULD abort the association
6068  * the association is automatically closed by starting the shutdown process.
6084 	/* From 9.2 Shutdown of an Association  in sctp_sf_autoclose_timer_expire()
6145  * when the association is in the wrong state.   This event should
6254 	 * association exists, otherwise, use the peer's vtag.  in sctp_ootb_pkt_new()