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Fixed bug #36210 lwIP does not elicit an empty ACK when received unacceptable ACK

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This commit is contained in:
Simon Goldschmidt 2014-04-06 22:40:51 +02:00
parent 4c3b6814dc
commit 035ecef8a5
2 changed files with 6 additions and 1 deletions
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4
CHANGELOG
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@ -100,6 +100,10 @@ HISTORY
++ Bugfixes: ++ Bugfixes:
2014-04-06: Simon Goldschmidt
* tcp_in.c: Fixed bug #36210 lwIP does not elicit an empty ACK when received
unacceptable ACK
2014-04-06: Simon Goldschmidt 2014-04-06: Simon Goldschmidt
* dhcp.c, ip4.c/.h, ip6.c/.h, udp.c/.h, ip.h: Fixed bug #41787 DHCP Discovery * dhcp.c, ip4.c/.h, ip6.c/.h, udp.c/.h, ip.h: Fixed bug #41787 DHCP Discovery
is invalid when an IP is set to thet netif. is invalid when an IP is set to thet netif.

3
src/core/tcp_in.c
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@ -1112,8 +1112,9 @@ tcp_receive(struct tcp_pcb *pcb)
} }
#endif /* LWIP_IPV6 && LWIP_ND6_TCP_REACHABILITY_HINTS*/ #endif /* LWIP_IPV6 && LWIP_ND6_TCP_REACHABILITY_HINTS*/
} else { } else {
/* Fix bug bug #21582: out of sequence ACK, didn't really ack anything */ /* Out of sequence ACK, didn't really ack anything */
pcb->acked = 0; pcb->acked = 0;
tcp_send_empty_ack(pcb);
} }
/* We go through the ->unsent list to see if any of the segments /* We go through the ->unsent list to see if any of the segments