Cross Reference: /net/netfilter/nf_conntrack_proto

Lines Matching refs:ack
196 /*ack*/	   { sES, sIV, sES, sES, sCW, sCW, sTW, sTW, sCL, sIV },
256 /*ack*/	   { sIV, sIG, sSR, sES, sCW, sCW, sTW, sTW, sCL, sIG },
328 	else if (tcph->syn) return (tcph->ack ? TCP_SYNACK_SET : TCP_SYN_SET);
330 	else if (tcph->ack) return TCP_ACK_SET;
346 	td_maxwin = max(max(win, 1)) + (sack - ack) seen in sent packets
353    III.	Upper bound for valid (s)ack:   sack <= receiver.td_end
354    IV.	Lower bound for valid (s)ack:	sack >= receiver.td_end - MAXACKWINDOW
357    or ack in the case of packet without SACK option.
359    The upper bound limit for a valid (s)ack is not ignored -
514 	__u32 seq, ack, sack, end, win, swin;
522 	ack = sack = ntohl(tcph->ack_seq);
530 	receiver_offset = nf_ct_seq_offset(ct, !dir, ack - 1);
531 	ack -= receiver_offset;
537 	pr_debug("seq=%u ack=%u+(%d) sack=%u+(%d) win=%u end=%u\n",
538 		 seq, ack, receiver_offset, sack, receiver_offset, win, end);
569 			if (!tcph->ack)
607 	if (!(tcph->ack)) {
611 		ack = sack = receiver->td_end;
614 		   && (ack == 0)) {
617 		 * with zero ack value.
619 		ack = sack = receiver->td_end;
630 	pr_debug("seq=%u ack=%u+(%d) sack=%u+(%d) win=%u end=%u\n",
631 		 seq, ack, receiver_offset, sack, receiver_offset, win, end);
662 		swin = win + (sack - ack);
669 		if (tcph->ack) {
671 				sender->td_maxack = ack;
673 			} else if (after(ack, sender->td_maxack))
674 				sender->td_maxack = ack;
687 		if (ack == receiver->td_end)
696 			    && state->last_ack == ack
703 				state->last_ack = ack;
1019 	pr_debug("syn=%i ack=%i fin=%i rst=%i old=%i new=%i\n",
1020 		 (th->syn ? 1 : 0), (th->ack ? 1 : 0),
1062 		/* Set ASSURED if we see see valid ack in ESTABLISHED