sys/netinet/sctp_indata.c

166     struct sctp_tmit_chunk *chk)
174 	read_queue_e->sinfo_stream = chk->rec.data.stream_number;
175 	read_queue_e->sinfo_ssn = chk->rec.data.stream_seq;
176 	read_queue_e->sinfo_flags = (chk->rec.data.rcv_flags << 8);
177 	read_queue_e->sinfo_ppid = chk->rec.data.payloadtype;
180 	read_queue_e->sinfo_tsn = chk->rec.data.TSN_seq;
181 	read_queue_e->sinfo_cumtsn = chk->rec.data.TSN_seq;
183 	read_queue_e->whoFrom = chk->whoTo;
186 	atomic_add_int(&chk->whoTo->ref_count, 1);
187 	read_queue_e->data = chk->data;
370 	struct sctp_tmit_chunk *chk, *nchk;
387 		TAILQ_FOREACH_SAFE(chk, &asoc->reasmqueue, sctp_next, nchk) {
388 			TAILQ_REMOVE(&asoc->reasmqueue, chk, sctp_next);
389 			asoc->size_on_reasm_queue -= chk->send_size;
395 			if (chk->data) {
396 				sctp_m_freem(chk->data);
397 				chk->data = NULL;
400 			sctp_free_a_chunk(stcb, chk, SCTP_SO_NOT_LOCKED);
406 	TAILQ_FOREACH_SAFE(chk, &asoc->reasmqueue, sctp_next, nchk) {
407 		if (chk->rec.data.TSN_seq != (asoc->tsn_last_delivered + 1)) {
411 		stream_no = chk->rec.data.stream_number;
413 		if (nxt_todel != chk->rec.data.stream_seq &&
414 		    (chk->rec.data.rcv_flags & SCTP_DATA_UNORDERED) == 0) {
421 		if (chk->rec.data.rcv_flags & SCTP_DATA_FIRST_FRAG) {
423 			control = sctp_build_readq_entry_chk(stcb, chk);
430 			if (chk->rec.data.rcv_flags & SCTP_DATA_LAST_FRAG)
434 			sctp_mark_non_revokable(asoc, chk->rec.data.TSN_seq);
440 			if (chk->rec.data.rcv_flags & SCTP_DATA_LAST_FRAG)
444 			sctp_mark_non_revokable(asoc, chk->rec.data.TSN_seq);
447 			    chk->data, end, chk->rec.data.TSN_seq,
478 		TAILQ_REMOVE(&asoc->reasmqueue, chk, sctp_next);
479 		if (chk->rec.data.rcv_flags & SCTP_DATA_LAST_FRAG) {
481 			if ((chk->rec.data.rcv_flags & SCTP_DATA_UNORDERED) == 0) {
484 			if ((chk->rec.data.rcv_flags & SCTP_DATA_FIRST_FRAG) == 0) {
487 		} else if (chk->rec.data.rcv_flags & SCTP_DATA_FIRST_FRAG) {
494 		asoc->tsn_of_pdapi_last_delivered = chk->rec.data.TSN_seq;
495 		asoc->last_flags_delivered = chk->rec.data.rcv_flags;
496 		asoc->last_strm_seq_delivered = chk->rec.data.stream_seq;
497 		asoc->last_strm_no_delivered = chk->rec.data.stream_number;
499 		asoc->tsn_last_delivered = chk->rec.data.TSN_seq;
500 		asoc->size_on_reasm_queue -= chk->send_size;
502 		/* free up the chk */
503 		chk->data = NULL;
504 		sctp_free_a_chunk(stcb, chk, SCTP_SO_NOT_LOCKED);
731 	struct sctp_tmit_chunk *chk;
735 	chk = TAILQ_FIRST(&asoc->reasmqueue);
736 	if (chk == NULL) {
740 	if ((chk->rec.data.rcv_flags & SCTP_DATA_FIRST_FRAG) == 0) {
744 	tsn = chk->rec.data.TSN_seq;
745 	TAILQ_FOREACH(chk, &asoc->reasmqueue, sctp_next) {
746 		if (tsn != chk->rec.data.TSN_seq) {
749 		*t_size += chk->send_size;
750 		if (chk->rec.data.rcv_flags & SCTP_DATA_LAST_FRAG) {
761 	struct sctp_tmit_chunk *chk;
766 	chk = TAILQ_FIRST(&asoc->reasmqueue);
767 	if (chk == NULL) {
775 		    asoc->strmin[chk->rec.data.stream_number].last_sequence_delivered + 1;
776 		if ((chk->rec.data.rcv_flags & SCTP_DATA_FIRST_FRAG) &&
777 		    (nxt_todel == chk->rec.data.stream_seq ||
778 		    (chk->rec.data.rcv_flags & SCTP_DATA_UNORDERED))) {
797 				    chk->rec.data.TSN_seq - 1;
799 				    chk->rec.data.stream_number;
800 				asoc->ssn_of_pdapi = chk->rec.data.stream_seq;
801 				asoc->pdapi_ppid = chk->rec.data.payloadtype;
802 				asoc->fragment_flags = chk->rec.data.rcv_flags;
832     struct sctp_tmit_chunk *chk, int *abort_flag)
843 		TAILQ_INSERT_HEAD(&asoc->reasmqueue, chk, sctp_next);
848 		asoc->size_on_reasm_queue = chk->send_size;
850 		if (chk->rec.data.TSN_seq == cum_ackp1) {
852 			    (chk->rec.data.rcv_flags & SCTP_DATA_FIRST_FRAG) !=
862 				    chk->rec.data.TSN_seq,
863 				    chk->rec.data.stream_number,
864 				    chk->rec.data.stream_seq);
870 			    (chk->rec.data.rcv_flags & SCTP_DATA_FIRST_FRAG) == SCTP_DATA_FIRST_FRAG) {
879 				    chk->rec.data.TSN_seq,
880 				    chk->rec.data.stream_number,
881 				    chk->rec.data.stream_seq);
891 				if (chk->rec.data.stream_number !=
895 					    chk->rec.data.stream_number,
900 					    chk->rec.data.TSN_seq,
901 					    chk->rec.data.stream_number,
902 					    chk->rec.data.stream_seq);
909 				    chk->rec.data.stream_seq != asoc->ssn_of_pdapi) {
912 					    chk->rec.data.stream_seq,
917 					    chk->rec.data.TSN_seq,
918 					    chk->rec.data.stream_number,
919 					    chk->rec.data.stream_seq);
931 		if (SCTP_TSN_GT(at->rec.data.TSN_seq, chk->rec.data.TSN_seq)) {
937 			asoc->size_on_reasm_queue += chk->send_size;
940 			TAILQ_INSERT_BEFORE(at, chk, sctp_next);
942 		} else if (at->rec.data.TSN_seq == chk->rec.data.TSN_seq) {
951 			if (chk->data) {
952 				sctp_m_freem(chk->data);
953 				chk->data = NULL;
955 			sctp_free_a_chunk(stcb, chk, SCTP_SO_NOT_LOCKED);
965 				asoc->size_on_reasm_queue += chk->send_size;
967 				TAILQ_INSERT_AFTER(&asoc->reasmqueue, at, chk, sctp_next);
974 		prev_tsn = chk->rec.data.TSN_seq - 1;
985 				 * Insert chk MUST be a MIDDLE or LAST
988 				if ((chk->rec.data.rcv_flags & SCTP_DATA_FRAG_MASK) ==
994 					    chk->rec.data.TSN_seq,
995 					    chk->rec.data.stream_number,
996 					    chk->rec.data.stream_seq);
1003 				if (chk->rec.data.stream_number !=
1010 					    chk->rec.data.stream_number,
1015 					    chk->rec.data.TSN_seq,
1016 					    chk->rec.data.stream_number,
1017 					    chk->rec.data.stream_seq);
1024 				if ((chk->rec.data.rcv_flags & SCTP_DATA_UNORDERED) !=
1034 					    chk->rec.data.TSN_seq,
1035 					    (chk->rec.data.rcv_flags & SCTP_DATA_UNORDERED) ? 1 : 0);
1043 				    chk->rec.data.stream_seq !=
1050 					    chk->rec.data.stream_seq,
1055 					    chk->rec.data.TSN_seq,
1056 					    chk->rec.data.stream_number,
1057 					    chk->rec.data.stream_seq);
1066 				/* Insert chk MUST be a FIRST */
1067 				if ((chk->rec.data.rcv_flags & SCTP_DATA_FRAG_MASK) !=
1072 					    chk->rec.data.TSN_seq,
1073 					    chk->rec.data.stream_number,
1074 					    chk->rec.data.stream_seq);
1085 		post_tsn = chk->rec.data.TSN_seq + 1;
1092 				/* Insert chk MUST be a last fragment */
1093 				if ((chk->rec.data.rcv_flags & SCTP_DATA_FRAG_MASK)
1095 					SCTPDBG(SCTP_DEBUG_INDATA1, "Next chk - Next is FIRST, we must be LAST\n");
1099 					    chk->rec.data.TSN_seq,
1100 					    chk->rec.data.stream_number,
1101 					    chk->rec.data.stream_seq);
1113 				 * Insert chk CAN be MIDDLE or FIRST NOT
1116 				if ((chk->rec.data.rcv_flags & SCTP_DATA_FRAG_MASK) ==
1118 					SCTPDBG(SCTP_DEBUG_INDATA1, "Next chk - Next is a MIDDLE/LAST\n");
1122 					    chk->rec.data.TSN_seq,
1123 					    chk->rec.data.stream_number,
1124 					    chk->rec.data.stream_seq);
1131 				if (chk->rec.data.stream_number !=
1137 					SCTPDBG(SCTP_DEBUG_INDATA1, "Next chk - Gak, Evil plot, ssn:%d not the same as at:%d\n",
1138 					    chk->rec.data.stream_number,
1143 					    chk->rec.data.TSN_seq,
1144 					    chk->rec.data.stream_number,
1145 					    chk->rec.data.stream_seq);
1152 				if ((chk->rec.data.rcv_flags & SCTP_DATA_UNORDERED) !=
1162 					    chk->rec.data.TSN_seq,
1163 					    (chk->rec.data.rcv_flags & SCTP_DATA_UNORDERED) ? 1 : 0);
1171 				    chk->rec.data.stream_seq !=
1177 					SCTPDBG(SCTP_DEBUG_INDATA1, "Next chk - Gak, Evil plot, sseq:%d not the same as at:%d\n",
1178 					    chk->rec.data.stream_seq,
1183 					    chk->rec.data.TSN_seq,
1184 					    chk->rec.data.stream_number,
1185 					    chk->rec.data.stream_seq);
1266 	/* struct sctp_tmit_chunk *chk; */
1267 	struct sctp_tmit_chunk *chk;
1281 	chk = NULL;
1582 	chk = NULL;
1652 		sctp_alloc_a_chunk(stcb, chk);
1653 		if (chk == NULL) {
1662 		chk->rec.data.TSN_seq = tsn;
1663 		chk->no_fr_allowed = 0;
1664 		chk->rec.data.stream_seq = strmseq;
1665 		chk->rec.data.stream_number = strmno;
1666 		chk->rec.data.payloadtype = protocol_id;
1667 		chk->rec.data.context = stcb->asoc.context;
1668 		chk->rec.data.doing_fast_retransmit = 0;
1669 		chk->rec.data.rcv_flags = chunk_flags;
1670 		chk->asoc = asoc;
1671 		chk->send_size = the_len;
1672 		chk->whoTo = net;
1674 		chk->data = dmbuf;
1847 		sctp_queue_data_for_reasm(stcb, asoc, chk, abort_flag);
1850 			 * the assoc is now gone and chk was put onto the
2235 	struct sctp_tmit_chunk *chk;
2252 	chk = TAILQ_FIRST(&asoc->reasmqueue);
2253 	if (chk == NULL) {
2258 	nxt_todel = asoc->strmin[chk->rec.data.stream_number].last_sequence_delivered + 1;
2259 	if ((chk->rec.data.rcv_flags & SCTP_DATA_FIRST_FRAG) &&
2260 	    ((nxt_todel == chk->rec.data.stream_seq) ||
2261 	    (chk->rec.data.rcv_flags & SCTP_DATA_UNORDERED))) {
2280 			asoc->tsn_last_delivered = chk->rec.data.TSN_seq - 1;
2281 			asoc->str_of_pdapi = chk->rec.data.stream_number;
2282 			asoc->ssn_of_pdapi = chk->rec.data.stream_seq;
2283 			asoc->pdapi_ppid = chk->rec.data.payloadtype;
2284 			asoc->fragment_flags = chk->rec.data.rcv_flags;
3449 				/* No update but we do save the chk */
3466 	struct sctp_tmit_chunk *chk;
3477 	TAILQ_FOREACH(chk, &asoc->sent_queue, sctp_next) {
3478 		if (chk->sent < SCTP_DATAGRAM_RESEND) {
3480 			    chk->rec.data.TSN_seq,
3481 			    chk->send_size,
3482 			    chk->snd_count);
3484 		} else if (chk->sent == SCTP_DATAGRAM_RESEND) {
3486 		} else if (chk->sent < SCTP_DATAGRAM_ACKED) {
3488 		} else if (chk->sent > SCTP_DATAGRAM_ACKED) {
5013 	struct sctp_tmit_chunk *chk, *nchk;
5024 	TAILQ_FOREACH_SAFE(chk, &asoc->reasmqueue, sctp_next, nchk) {
5030 		if ((chk->rec.data.stream_number != stream) ||
5031 		    ((chk->rec.data.rcv_flags & SCTP_DATA_UNORDERED) == SCTP_DATA_UNORDERED)) {
5034 		if (chk->rec.data.stream_seq == seq) {
5036 			TAILQ_REMOVE(&asoc->reasmqueue, chk, sctp_next);
5037 			if (SCTP_TSN_GT(chk->rec.data.TSN_seq, asoc->tsn_last_delivered)) {
5038 				asoc->tsn_last_delivered = chk->rec.data.TSN_seq;
5039 				asoc->str_of_pdapi = chk->rec.data.stream_number;
5040 				asoc->ssn_of_pdapi = chk->rec.data.stream_seq;
5041 				asoc->fragment_flags = chk->rec.data.rcv_flags;
5043 			asoc->size_on_reasm_queue -= chk->send_size;
5047 			if ((chk->rec.data.rcv_flags & SCTP_DATA_UNORDERED) != SCTP_DATA_UNORDERED &&
5048 			    SCTP_SSN_GT(chk->rec.data.stream_seq, asoc->strmin[chk->rec.data.stream_number].last_sequence_delivered)) {
5063 				asoc->strmin[chk->rec.data.stream_number].last_sequence_delivered = chk->rec.data.stream_seq;
5065 			if (chk->data) {
5066 				sctp_m_freem(chk->data);
5067 				chk->data = NULL;
5069 			sctp_free_a_chunk(stcb, chk, SCTP_SO_NOT_LOCKED);
5070 		} else if (SCTP_SSN_GT(chk->rec.data.stream_seq, seq)) {
5103 	struct sctp_tmit_chunk *chk, *nchk;
5189 	TAILQ_FOREACH_SAFE(chk, &asoc->reasmqueue, sctp_next, nchk) {
5190 		if (SCTP_TSN_GE(new_cum_tsn, chk->rec.data.TSN_seq)) {
5192 			TAILQ_REMOVE(&asoc->reasmqueue, chk, sctp_next);
5193 			if (SCTP_TSN_GT(chk->rec.data.TSN_seq, asoc->tsn_last_delivered)) {
5194 				asoc->tsn_last_delivered = chk->rec.data.TSN_seq;
5195 				asoc->str_of_pdapi = chk->rec.data.stream_number;
5196 				asoc->ssn_of_pdapi = chk->rec.data.stream_seq;
5197 				asoc->fragment_flags = chk->rec.data.rcv_flags;
5199 			asoc->size_on_reasm_queue -= chk->send_size;
5203 			if ((chk->rec.data.rcv_flags & SCTP_DATA_UNORDERED) != SCTP_DATA_UNORDERED &&
5204 			    SCTP_SSN_GT(chk->rec.data.stream_seq, asoc->strmin[chk->rec.data.stream_number].last_sequence_delivered)) {
5219 				asoc->strmin[chk->rec.data.stream_number].last_sequence_delivered = chk->rec.data.stream_seq;
5221 			if (chk->data) {
5222 				sctp_m_freem(chk->data);
5223 				chk->data = NULL;
5225 			sctp_free_a_chunk(stcb, chk, SCTP_SO_NOT_LOCKED);