202 	/* Make an empty list of remote transport addresses.  */  in sctp_association_init()
315 	struct sctp_transport *transport;  in sctp_association_free()  local
373 	/* Release the transport structures. */  in sctp_association_free()
375 		transport = list_entry(pos, struct sctp_transport, transports);  in sctp_association_free()
377 		sctp_unhash_transport(transport);  in sctp_association_free()
378 		sctp_transport_free(transport);  in sctp_association_free()
422 			    struct sctp_transport *transport)  in sctp_assoc_set_primary()  argument
430 	    asoc->peer.primary_path != transport)  in sctp_assoc_set_primary()
433 	asoc->peer.primary_path = transport;  in sctp_assoc_set_primary()
434 	sctp_ulpevent_notify_peer_addr_change(transport,  in sctp_assoc_set_primary()
438 	memcpy(&asoc->peer.primary_addr, &transport->ipaddr,  in sctp_assoc_set_primary()
444 	if ((transport->state == SCTP_ACTIVE) ||  in sctp_assoc_set_primary()
445 	    (transport->state == SCTP_UNKNOWN))  in sctp_assoc_set_primary()
446 		asoc->peer.active_path = transport;  in sctp_assoc_set_primary()
465 	if (transport->cacc.changeover_active)  in sctp_assoc_set_primary()
466 		transport->cacc.cycling_changeover = changeover;  in sctp_assoc_set_primary()
471 	transport->cacc.changeover_active = changeover;  in sctp_assoc_set_primary()
476 	transport->cacc.next_tsn_at_change = asoc->next_tsn;  in sctp_assoc_set_primary()
479 /* Remove a transport from an association.  */
483 	struct sctp_transport *transport;  in sctp_assoc_rm_peer()  local
498 	/* Remove this peer from the transport hashtable */  in sctp_assoc_rm_peer()
501 	/* Get the first transport of asoc. */  in sctp_assoc_rm_peer()
503 	transport = list_entry(pos, struct sctp_transport, transports);  in sctp_assoc_rm_peer()
507 		sctp_assoc_set_primary(asoc, transport);  in sctp_assoc_rm_peer()
509 		asoc->peer.active_path = transport;  in sctp_assoc_rm_peer()
511 		asoc->peer.retran_path = transport;  in sctp_assoc_rm_peer()
513 		asoc->peer.last_data_from = transport;  in sctp_assoc_rm_peer()
516 	    asoc->strreset_chunk->transport == peer) {  in sctp_assoc_rm_peer()
517 		asoc->strreset_chunk->transport = transport;  in sctp_assoc_rm_peer()
518 		sctp_transport_reset_reconf_timer(transport);  in sctp_assoc_rm_peer()
521 	/* If we remove the transport an INIT was last sent to, set it to  in sctp_assoc_rm_peer()
524 	 * transport, maintaining the cycle.  in sctp_assoc_rm_peer()
529 	/* If we remove the transport an SHUTDOWN was last sent to, set it  in sctp_assoc_rm_peer()
532 	 * transport, maintaining the cycle.  in sctp_assoc_rm_peer()
537 	/* If we remove the transport an ASCONF was last sent to, set it to  in sctp_assoc_rm_peer()
541 	    asoc->addip_last_asconf->transport == peer)  in sctp_assoc_rm_peer()
542 		asoc->addip_last_asconf->transport = NULL;  in sctp_assoc_rm_peer()
550 		/* Reset the transport of each chunk on this list */  in sctp_assoc_rm_peer()
553 			ch->transport = NULL;  in sctp_assoc_rm_peer()
571 		if (ch->transport == peer)  in sctp_assoc_rm_peer()
572 			ch->transport = NULL;  in sctp_assoc_rm_peer()
580 /* Add a transport address to an association.  */
657 	/* Initialize the pmtu of the transport. */  in sctp_assoc_add_peer()
660 	/* If this is the first transport addr on this association,  in sctp_assoc_add_peer()
699 	/* Set the transport's RTO.initial value */  in sctp_assoc_add_peer()
706 	/* Add this peer into the transport hashtable */  in sctp_assoc_add_peer()
712 	/* Attach the remote transport to our asoc.  */  in sctp_assoc_add_peer()
732 /* Delete a transport address from an association.  */
738 	struct sctp_transport	*transport;  in sctp_assoc_del_peer()  local
741 		transport = list_entry(pos, struct sctp_transport, transports);  in sctp_assoc_del_peer()
742 		if (sctp_cmp_addr_exact(addr, &transport->ipaddr)) {  in sctp_assoc_del_peer()
744 			sctp_assoc_rm_peer(asoc, transport);  in sctp_assoc_del_peer()
750 /* Lookup a transport by address. */
777 		/* if the current transport is not the primary one, delete it */  in sctp_assoc_del_nonprimary_peers()
783 /* Engage in transport control operations.
784  * Mark the transport up or down and send a notification to the user.
788 				  struct sctp_transport *transport,  in sctp_assoc_control_transport()  argument
795 	/* Record the transition on the transport.  */  in sctp_assoc_control_transport()
802 		if (transport->state == SCTP_PF &&  in sctp_assoc_control_transport()
805 		else if (transport->state == SCTP_UNCONFIRMED &&  in sctp_assoc_control_transport()
809 		transport->state = SCTP_ACTIVE;  in sctp_assoc_control_transport()
813 		/* If the transport was never confirmed, do not transition it  in sctp_assoc_control_transport()
817 		if (transport->state != SCTP_UNCONFIRMED) {  in sctp_assoc_control_transport()
818 			transport->state = SCTP_INACTIVE;  in sctp_assoc_control_transport()
821 			sctp_transport_dst_release(transport);  in sctp_assoc_control_transport()
827 		transport->state = SCTP_PF;  in sctp_assoc_control_transport()
842 		sctp_ulpevent_notify_peer_addr_change(transport,  in sctp_assoc_control_transport()
912  * Find which transport this TSN was sent on.
919 	struct sctp_transport *transport;  in sctp_assoc_lookup_tsn()  local
931 	 * The general strategy is to search each transport's transmitted  in sctp_assoc_lookup_tsn()
932 	 * list.   Return which transport this TSN lives on.  in sctp_assoc_lookup_tsn()
952 	list_for_each_entry(transport, &asoc->peer.transport_addr_list,  in sctp_assoc_lookup_tsn()
955 		if (transport == active)  in sctp_assoc_lookup_tsn()
957 		list_for_each_entry(chunk, &transport->transmitted,  in sctp_assoc_lookup_tsn()
960 				match = transport;  in sctp_assoc_lookup_tsn()
1031 			asoc->peer.last_data_from = chunk->transport;  in sctp_assoc_bh_rcv()
1039 		if (chunk->transport)  in sctp_assoc_bh_rcv()
1040 			chunk->transport->last_time_heard = ktime_get();  in sctp_assoc_bh_rcv()
1194  *   inactive destination transport address, before reporting
1196  *   the data to an alternate active destination transport
1213  * transport with state SCTP_ACTIVE exists, round-robin through
1255 	/* First, try a score-based selection if both transport states  in sctp_trans_elect_best()
1317 		/* Keep track of the best PF transport from our  in sctp_select_active_and_retran_path()
1341 	 * destination transport address (and possibly source transport  in sctp_select_active_and_retran_path()
1343 	 * bump the most recently used transport.]  in sctp_select_active_and_retran_path()
1359 	/* If we failed to find a usable transport, just camp on the  in sctp_select_active_and_retran_path()
1416  * transports. This routine is called when a transport's PMTU has changed.