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()
162 	struct sctp_chunk *chunk, *tmp;  in sctp_packet_free()  local
166 	list_for_each_entry_safe(chunk, tmp, &packet->chunk_list, list) {  in sctp_packet_free()
167 		list_del_init(&chunk->list);  in sctp_packet_free()
168 		sctp_chunk_free(chunk);  in sctp_packet_free()
180 					  struct sctp_chunk *chunk,  in sctp_packet_transmit_chunk()  argument
186 		 packet, packet->size, chunk, chunk->skb ? chunk->skb->len : -1);  in sctp_packet_transmit_chunk()
188 	switch ((retval = (sctp_packet_append_chunk(packet, chunk)))) {  in sctp_packet_transmit_chunk()
195 				chunk->skb->sk->sk_err = -error;  in sctp_packet_transmit_chunk()
202 								  chunk);  in sctp_packet_transmit_chunk()
216 static enum sctp_xmit sctp_packet_bundle_pad(struct sctp_packet *pkt, struct sctp_chunk *chunk)  in sctp_packet_bundle_pad()  argument
222 	if (!chunk->pmtu_probe)  in sctp_packet_bundle_pad()
234 	chunk->transport = t;  in sctp_packet_bundle_pad()
241 					      struct sctp_chunk *chunk)  in sctp_packet_bundle_auth()  argument
254 	if (chunk->chunk_hdr->type == SCTP_CID_AUTH || pkt->has_auth)  in sctp_packet_bundle_auth()
260 	if (!chunk->auth)  in sctp_packet_bundle_auth()
263 	auth = sctp_make_auth(asoc, chunk->shkey->key_id);  in sctp_packet_bundle_auth()
267 	auth->shkey = chunk->shkey;  in sctp_packet_bundle_auth()
280 					      struct sctp_chunk *chunk)  in sctp_packet_bundle_sack()  argument
287 	if (sctp_chunk_is_data(chunk) && !pkt->has_sack &&  in sctp_packet_bundle_sack()
328 						 struct sctp_chunk *chunk)  in __sctp_packet_append_chunk()  argument
330 	__u16 chunk_len = SCTP_PAD4(ntohs(chunk->chunk_hdr->length));  in __sctp_packet_append_chunk()
334 	retval = sctp_packet_will_fit(packet, chunk, chunk_len);  in __sctp_packet_append_chunk()
339 	switch (chunk->chunk_hdr->type) {  in __sctp_packet_append_chunk()
343 		sctp_packet_append_data(packet, chunk);  in __sctp_packet_append_chunk()
351 		chunk->sent_at = jiffies;  in __sctp_packet_append_chunk()
353 		chunk->sent_count++;  in __sctp_packet_append_chunk()
361 		if (chunk->asoc)  in __sctp_packet_append_chunk()
362 			chunk->asoc->stats.osacks++;  in __sctp_packet_append_chunk()
367 		packet->auth = chunk;  in __sctp_packet_append_chunk()
372 	list_add_tail(&chunk->list, &packet->chunk_list);  in __sctp_packet_append_chunk()
374 	chunk->transport = packet->transport;  in __sctp_packet_append_chunk()
383 					struct sctp_chunk *chunk)  in sctp_packet_append_chunk()  argument
387 	pr_debug("%s: packet:%p chunk:%p\n", __func__, packet, chunk);  in sctp_packet_append_chunk()
393 	if (sctp_chunk_is_data(chunk)) {  in sctp_packet_append_chunk()
394 		retval = sctp_packet_can_append_data(packet, chunk);  in sctp_packet_append_chunk()
400 	retval = sctp_packet_bundle_auth(packet, chunk);  in sctp_packet_append_chunk()
405 	retval = sctp_packet_bundle_sack(packet, chunk);  in sctp_packet_append_chunk()
409 	retval = __sctp_packet_append_chunk(packet, chunk);  in sctp_packet_append_chunk()
413 	retval = sctp_packet_bundle_pad(packet, chunk);  in sctp_packet_append_chunk()
440 	struct sctp_chunk *chunk, *tmp;  in sctp_packet_pack()  local
458 		list_for_each_entry_safe(chunk, tmp, &packet->chunk_list,  in sctp_packet_pack()
460 			int padded = SCTP_PAD4(chunk->skb->len);  in sctp_packet_pack()
462 			if (chunk == packet->auth)  in sctp_packet_pack()
479 		list_for_each_entry_safe(chunk, tmp, &packet->chunk_list, list) {  in sctp_packet_pack()
482 			list_del_init(&chunk->list);  in sctp_packet_pack()
483 			if (sctp_chunk_is_data(chunk)) {  in sctp_packet_pack()
484 				if (!sctp_chunk_retransmitted(chunk) &&  in sctp_packet_pack()
486 					chunk->rtt_in_progress = 1;  in sctp_packet_pack()
491 			padding = SCTP_PAD4(chunk->skb->len) - chunk->skb->len;  in sctp_packet_pack()
493 				skb_put_zero(chunk->skb, padding);  in sctp_packet_pack()
495 			if (chunk == packet->auth)  in sctp_packet_pack()
499 			skb_put_data(nskb, chunk->skb->data, chunk->skb->len);  in sctp_packet_pack()
502 				 chunk,  in sctp_packet_pack()
503 				 sctp_cname(SCTP_ST_CHUNK(chunk->chunk_hdr->type)),  in sctp_packet_pack()
504 				 chunk->has_tsn ? "TSN" : "No TSN",  in sctp_packet_pack()
505 				 chunk->has_tsn ? ntohl(chunk->subh.data_hdr->tsn) : 0,  in sctp_packet_pack()
506 				 ntohs(chunk->chunk_hdr->length), chunk->skb->len,  in sctp_packet_pack()
507 				 chunk->rtt_in_progress);  in sctp_packet_pack()
509 			pkt_size -= SCTP_PAD4(chunk->skb->len);  in sctp_packet_pack()
511 			if (!sctp_chunk_is_data(chunk) && chunk != packet->auth)  in sctp_packet_pack()
512 				sctp_chunk_free(chunk);  in sctp_packet_pack()
572 	struct sctp_chunk *chunk, *tmp;  in sctp_packet_transmit()  local
581 	chunk = list_entry(packet->chunk_list.next, struct sctp_chunk, list);  in sctp_packet_transmit()
582 	sk = chunk->skb->sk;  in sctp_packet_transmit()
585 	if (packet->size > tp->pathmtu && !packet->ipfragok && !chunk->pmtu_probe) {  in sctp_packet_transmit()
654 	list_for_each_entry_safe(chunk, tmp, &packet->chunk_list, list) {  in sctp_packet_transmit()
655 		list_del_init(&chunk->list);  in sctp_packet_transmit()
656 		if (!sctp_chunk_is_data(chunk))  in sctp_packet_transmit()
657 			sctp_chunk_free(chunk);  in sctp_packet_transmit()
669 						  struct sctp_chunk *chunk)  in sctp_packet_can_append_data()  argument
693 	datasize = sctp_data_size(chunk);  in sctp_packet_can_append_data()
713 	if (chunk->fast_retransmit != SCTP_NEED_FRTX &&  in sctp_packet_can_append_data()
738 	if (chunk->skb->len + q->out_qlen > transport->pathmtu -  in sctp_packet_can_append_data()
739 	    packet->overhead - sctp_datachk_len(&chunk->asoc->stream) - 4)  in sctp_packet_can_append_data()
744 	if (!chunk->msg->can_delay)  in sctp_packet_can_append_data()
753 				struct sctp_chunk *chunk)  in sctp_packet_append_data()  argument
756 	size_t datasize = sctp_data_size(chunk);  in sctp_packet_append_data()
773 	sctp_chunk_assign_tsn(chunk);  in sctp_packet_append_data()
774 	asoc->stream.si->assign_number(chunk);  in sctp_packet_append_data()
778 					   struct sctp_chunk *chunk,  in sctp_packet_will_fit()  argument
789 	if ((packet->auth && chunk->shkey != packet->auth->shkey) ||  in sctp_packet_will_fit()
790 	    (!packet->auth && chunk->shkey &&  in sctp_packet_will_fit()
791 	     chunk->chunk_hdr->type != SCTP_CID_AUTH))  in sctp_packet_will_fit()
810 		    (!packet->has_data && chunk->auth)) {  in sctp_packet_will_fit()
836 		if (!sctp_chunk_is_data(chunk) && packet->has_data)  in sctp_packet_will_fit()