46 						 struct sctp_chunk *chunk);
48 						  struct sctp_chunk *chunk);
50 				    struct sctp_chunk *chunk);
52 					   struct sctp_chunk *chunk,
122 		struct sctp_chunk *chunk = sctp_get_ecne_prepend(asoc);  in sctp_packet_config()  local
124 		if (chunk)  in sctp_packet_config()
125 			sctp_packet_append_chunk(packet, chunk);  in sctp_packet_config()
163 	struct sctp_chunk *chunk, *tmp;  in sctp_packet_free()  local
167 	list_for_each_entry_safe(chunk, tmp, &packet->chunk_list, list) {  in sctp_packet_free()
168 		list_del_init(&chunk->list);  in sctp_packet_free()
169 		sctp_chunk_free(chunk);  in sctp_packet_free()
181 					  struct sctp_chunk *chunk,  in sctp_packet_transmit_chunk()  argument
187 		 packet, packet->size, chunk, chunk->skb ? chunk->skb->len : -1);  in sctp_packet_transmit_chunk()
189 	switch ((retval = (sctp_packet_append_chunk(packet, chunk)))) {  in sctp_packet_transmit_chunk()
196 				chunk->skb->sk->sk_err = -error;  in sctp_packet_transmit_chunk()
203 								  chunk);  in sctp_packet_transmit_chunk()
217 static enum sctp_xmit sctp_packet_bundle_pad(struct sctp_packet *pkt, struct sctp_chunk *chunk)  in sctp_packet_bundle_pad()  argument
223 	if (!chunk->pmtu_probe)  in sctp_packet_bundle_pad()
235 	chunk->transport = t;  in sctp_packet_bundle_pad()
242 					      struct sctp_chunk *chunk)  in sctp_packet_bundle_auth()  argument
255 	if (chunk->chunk_hdr->type == SCTP_CID_AUTH || pkt->has_auth)  in sctp_packet_bundle_auth()
261 	if (!chunk->auth)  in sctp_packet_bundle_auth()
264 	auth = sctp_make_auth(asoc, chunk->shkey->key_id);  in sctp_packet_bundle_auth()
268 	auth->shkey = chunk->shkey;  in sctp_packet_bundle_auth()
281 					      struct sctp_chunk *chunk)  in sctp_packet_bundle_sack()  argument
288 	if (sctp_chunk_is_data(chunk) && !pkt->has_sack &&  in sctp_packet_bundle_sack()
329 						 struct sctp_chunk *chunk)  in __sctp_packet_append_chunk()  argument
331 	__u16 chunk_len = SCTP_PAD4(ntohs(chunk->chunk_hdr->length));  in __sctp_packet_append_chunk()
335 	retval = sctp_packet_will_fit(packet, chunk, chunk_len);  in __sctp_packet_append_chunk()
340 	switch (chunk->chunk_hdr->type) {  in __sctp_packet_append_chunk()
344 		sctp_packet_append_data(packet, chunk);  in __sctp_packet_append_chunk()
352 		chunk->sent_at = jiffies;  in __sctp_packet_append_chunk()
354 		chunk->sent_count++;  in __sctp_packet_append_chunk()
362 		if (chunk->asoc)  in __sctp_packet_append_chunk()
363 			chunk->asoc->stats.osacks++;  in __sctp_packet_append_chunk()
368 		packet->auth = chunk;  in __sctp_packet_append_chunk()
373 	list_add_tail(&chunk->list, &packet->chunk_list);  in __sctp_packet_append_chunk()
375 	chunk->transport = packet->transport;  in __sctp_packet_append_chunk()
384 					struct sctp_chunk *chunk)  in sctp_packet_append_chunk()  argument
388 	pr_debug("%s: packet:%p chunk:%p\n", __func__, packet, chunk);  in sctp_packet_append_chunk()
394 	if (sctp_chunk_is_data(chunk)) {  in sctp_packet_append_chunk()
395 		retval = sctp_packet_can_append_data(packet, chunk);  in sctp_packet_append_chunk()
401 	retval = sctp_packet_bundle_auth(packet, chunk);  in sctp_packet_append_chunk()
406 	retval = sctp_packet_bundle_sack(packet, chunk);  in sctp_packet_append_chunk()
410 	retval = __sctp_packet_append_chunk(packet, chunk);  in sctp_packet_append_chunk()
414 	retval = sctp_packet_bundle_pad(packet, chunk);  in sctp_packet_append_chunk()
441 	struct sctp_chunk *chunk, *tmp;  in sctp_packet_pack()  local
459 		list_for_each_entry_safe(chunk, tmp, &packet->chunk_list,  in sctp_packet_pack()
461 			int padded = SCTP_PAD4(chunk->skb->len);  in sctp_packet_pack()
463 			if (chunk == packet->auth)  in sctp_packet_pack()
480 		list_for_each_entry_safe(chunk, tmp, &packet->chunk_list, list) {  in sctp_packet_pack()
483 			list_del_init(&chunk->list);  in sctp_packet_pack()
484 			if (sctp_chunk_is_data(chunk)) {  in sctp_packet_pack()
485 				if (!sctp_chunk_retransmitted(chunk) &&  in sctp_packet_pack()
487 					chunk->rtt_in_progress = 1;  in sctp_packet_pack()
492 			padding = SCTP_PAD4(chunk->skb->len) - chunk->skb->len;  in sctp_packet_pack()
494 				skb_put_zero(chunk->skb, padding);  in sctp_packet_pack()
496 			if (chunk == packet->auth)  in sctp_packet_pack()
500 			skb_put_data(nskb, chunk->skb->data, chunk->skb->len);  in sctp_packet_pack()
503 				 chunk,  in sctp_packet_pack()
504 				 sctp_cname(SCTP_ST_CHUNK(chunk->chunk_hdr->type)),  in sctp_packet_pack()
505 				 chunk->has_tsn ? "TSN" : "No TSN",  in sctp_packet_pack()
506 				 chunk->has_tsn ? ntohl(chunk->subh.data_hdr->tsn) : 0,  in sctp_packet_pack()
507 				 ntohs(chunk->chunk_hdr->length), chunk->skb->len,  in sctp_packet_pack()
508 				 chunk->rtt_in_progress);  in sctp_packet_pack()
510 			pkt_size -= SCTP_PAD4(chunk->skb->len);  in sctp_packet_pack()
512 			if (!sctp_chunk_is_data(chunk) && chunk != packet->auth)  in sctp_packet_pack()
513 				sctp_chunk_free(chunk);  in sctp_packet_pack()
573 	struct sctp_chunk *chunk, *tmp;  in sctp_packet_transmit()  local
582 	chunk = list_entry(packet->chunk_list.next, struct sctp_chunk, list);  in sctp_packet_transmit()
583 	sk = chunk->skb->sk;  in sctp_packet_transmit()
585 	if (packet->size > tp->pathmtu && !packet->ipfragok && !chunk->pmtu_probe) {  in sctp_packet_transmit()
658 	list_for_each_entry_safe(chunk, tmp, &packet->chunk_list, list) {  in sctp_packet_transmit()
659 		list_del_init(&chunk->list);  in sctp_packet_transmit()
660 		if (!sctp_chunk_is_data(chunk))  in sctp_packet_transmit()
661 			sctp_chunk_free(chunk);  in sctp_packet_transmit()
673 						  struct sctp_chunk *chunk)  in sctp_packet_can_append_data()  argument
697 	datasize = sctp_data_size(chunk);  in sctp_packet_can_append_data()
717 	if (chunk->fast_retransmit != SCTP_NEED_FRTX &&  in sctp_packet_can_append_data()
742 	if (chunk->skb->len + q->out_qlen > transport->pathmtu -  in sctp_packet_can_append_data()
743 	    packet->overhead - sctp_datachk_len(&chunk->asoc->stream) - 4)  in sctp_packet_can_append_data()
748 	if (!chunk->msg->can_delay)  in sctp_packet_can_append_data()
757 				struct sctp_chunk *chunk)  in sctp_packet_append_data()  argument
760 	size_t datasize = sctp_data_size(chunk);  in sctp_packet_append_data()
777 	sctp_chunk_assign_tsn(chunk);  in sctp_packet_append_data()
778 	asoc->stream.si->assign_number(chunk);  in sctp_packet_append_data()
782 					   struct sctp_chunk *chunk,  in sctp_packet_will_fit()  argument
793 	if ((packet->auth && chunk->shkey != packet->auth->shkey) ||  in sctp_packet_will_fit()
794 	    (!packet->auth && chunk->shkey &&  in sctp_packet_will_fit()
795 	     chunk->chunk_hdr->type != SCTP_CID_AUTH))  in sctp_packet_will_fit()
814 		    (!packet->has_data && chunk->auth)) {  in sctp_packet_will_fit()
840 		if (!sctp_chunk_is_data(chunk) && packet->has_data)  in sctp_packet_will_fit()