202 	/* Make an empty list of remote transport addresses.  */  in sctp_association_init()
316 	struct sctp_transport *transport;  in sctp_association_free()  local
374 	/* Release the transport structures. */  in sctp_association_free()
376 		transport = list_entry(pos, struct sctp_transport, transports);  in sctp_association_free()
378 		sctp_unhash_transport(transport);  in sctp_association_free()
379 		sctp_transport_free(transport);  in sctp_association_free()
423 			    struct sctp_transport *transport)  in sctp_assoc_set_primary()  argument
431 	    asoc->peer.primary_path != transport)  in sctp_assoc_set_primary()
434 	asoc->peer.primary_path = transport;  in sctp_assoc_set_primary()
435 	sctp_ulpevent_notify_peer_addr_change(transport,  in sctp_assoc_set_primary()
439 	memcpy(&asoc->peer.primary_addr, &transport->ipaddr,  in sctp_assoc_set_primary()
445 	if ((transport->state == SCTP_ACTIVE) ||  in sctp_assoc_set_primary()
446 	    (transport->state == SCTP_UNKNOWN))  in sctp_assoc_set_primary()
447 		asoc->peer.active_path = transport;  in sctp_assoc_set_primary()
466 	if (transport->cacc.changeover_active)  in sctp_assoc_set_primary()
467 		transport->cacc.cycling_changeover = changeover;  in sctp_assoc_set_primary()
472 	transport->cacc.changeover_active = changeover;  in sctp_assoc_set_primary()
477 	transport->cacc.next_tsn_at_change = asoc->next_tsn;  in sctp_assoc_set_primary()
480 /* Remove a transport from an association.  */
484 	struct sctp_transport *transport;  in sctp_assoc_rm_peer()  local
499 	/* Remove this peer from the transport hashtable */  in sctp_assoc_rm_peer()
502 	/* Get the first transport of asoc. */  in sctp_assoc_rm_peer()
504 	transport = list_entry(pos, struct sctp_transport, transports);  in sctp_assoc_rm_peer()
508 		sctp_assoc_set_primary(asoc, transport);  in sctp_assoc_rm_peer()
510 		asoc->peer.active_path = transport;  in sctp_assoc_rm_peer()
512 		asoc->peer.retran_path = transport;  in sctp_assoc_rm_peer()
514 		asoc->peer.last_data_from = transport;  in sctp_assoc_rm_peer()
517 	    asoc->strreset_chunk->transport == peer) {  in sctp_assoc_rm_peer()
518 		asoc->strreset_chunk->transport = transport;  in sctp_assoc_rm_peer()
519 		sctp_transport_reset_reconf_timer(transport);  in sctp_assoc_rm_peer()
522 	/* If we remove the transport an INIT was last sent to, set it to  in sctp_assoc_rm_peer()
525 	 * transport, maintaining the cycle.  in sctp_assoc_rm_peer()
530 	/* If we remove the transport an SHUTDOWN was last sent to, set it  in sctp_assoc_rm_peer()
533 	 * transport, maintaining the cycle.  in sctp_assoc_rm_peer()
538 	/* If we remove the transport an ASCONF was last sent to, set it to  in sctp_assoc_rm_peer()
542 	    asoc->addip_last_asconf->transport == peer)  in sctp_assoc_rm_peer()
543 		asoc->addip_last_asconf->transport = NULL;  in sctp_assoc_rm_peer()
551 		/* Reset the transport of each chunk on this list */  in sctp_assoc_rm_peer()
554 			ch->transport = NULL;  in sctp_assoc_rm_peer()
572 		if (ch->transport == peer)  in sctp_assoc_rm_peer()
573 			ch->transport = NULL;  in sctp_assoc_rm_peer()
581 /* Add a transport address to an association.  */
658 	/* Initialize the pmtu of the transport. */  in sctp_assoc_add_peer()
661 	/* If this is the first transport addr on this association,  in sctp_assoc_add_peer()
700 	/* Set the transport's RTO.initial value */  in sctp_assoc_add_peer()
707 	/* Add this peer into the transport hashtable */  in sctp_assoc_add_peer()
713 	/* Attach the remote transport to our asoc.  */  in sctp_assoc_add_peer()
733 /* Delete a transport address from an association.  */
739 	struct sctp_transport	*transport;  in sctp_assoc_del_peer()  local
742 		transport = list_entry(pos, struct sctp_transport, transports);  in sctp_assoc_del_peer()
743 		if (sctp_cmp_addr_exact(addr, &transport->ipaddr)) {  in sctp_assoc_del_peer()
745 			sctp_assoc_rm_peer(asoc, transport);  in sctp_assoc_del_peer()
751 /* Lookup a transport by address. */
778 		/* if the current transport is not the primary one, delete it */  in sctp_assoc_del_nonprimary_peers()
784 /* Engage in transport control operations.
785  * Mark the transport up or down and send a notification to the user.
789 				  struct sctp_transport *transport,  in sctp_assoc_control_transport()  argument
796 	/* Record the transition on the transport.  */  in sctp_assoc_control_transport()
803 		if (transport->state == SCTP_PF &&  in sctp_assoc_control_transport()
806 		else if (transport->state == SCTP_UNCONFIRMED &&  in sctp_assoc_control_transport()
810 		transport->state = SCTP_ACTIVE;  in sctp_assoc_control_transport()
814 		/* If the transport was never confirmed, do not transition it  in sctp_assoc_control_transport()
818 		if (transport->state != SCTP_UNCONFIRMED) {  in sctp_assoc_control_transport()
819 			transport->state = SCTP_INACTIVE;  in sctp_assoc_control_transport()
822 			sctp_transport_dst_release(transport);  in sctp_assoc_control_transport()
828 		transport->state = SCTP_PF;  in sctp_assoc_control_transport()
843 		sctp_ulpevent_notify_peer_addr_change(transport,  in sctp_assoc_control_transport()
913  * Find which transport this TSN was sent on.
920 	struct sctp_transport *transport;  in sctp_assoc_lookup_tsn()  local
932 	 * The general strategy is to search each transport's transmitted  in sctp_assoc_lookup_tsn()
933 	 * list.   Return which transport this TSN lives on.  in sctp_assoc_lookup_tsn()
953 	list_for_each_entry(transport, &asoc->peer.transport_addr_list,  in sctp_assoc_lookup_tsn()
956 		if (transport == active)  in sctp_assoc_lookup_tsn()
958 		list_for_each_entry(chunk, &transport->transmitted,  in sctp_assoc_lookup_tsn()
961 				match = transport;  in sctp_assoc_lookup_tsn()
1032 			asoc->peer.last_data_from = chunk->transport;  in sctp_assoc_bh_rcv()
1040 		if (chunk->transport)  in sctp_assoc_bh_rcv()
1041 			chunk->transport->last_time_heard = ktime_get();  in sctp_assoc_bh_rcv()
1195  *   inactive destination transport address, before reporting
1197  *   the data to an alternate active destination transport
1214  * transport with state SCTP_ACTIVE exists, round-robin through
1256 	/* First, try a score-based selection if both transport states  in sctp_trans_elect_best()
1318 		/* Keep track of the best PF transport from our  in sctp_select_active_and_retran_path()
1342 	 * destination transport address (and possibly source transport  in sctp_select_active_and_retran_path()
1344 	 * bump the most recently used transport.]  in sctp_select_active_and_retran_path()
1360 	/* If we failed to find a usable transport, just camp on the  in sctp_select_active_and_retran_path()
1417  * transports. This routine is called when a transport's PMTU has changed.