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Fixed bug #27783: Silly window avoidance for small window sizes

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This commit is contained in:
goldsimon
2009-10-23 13:17:18 +00:00
parent 18ab274af3
commit 81f9442ac7
2 changed files with 4 additions and 1 deletions
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2
src/core/tcp.c
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@@ -408,7 +408,7 @@ u32_t tcp_update_rcv_ann_wnd(struct tcp_pcb *pcb)
{
u32_t new_right_edge = pcb->rcv_nxt + pcb->rcv_wnd;
if (TCP_SEQ_GEQ(new_right_edge, pcb->rcv_ann_right_edge + pcb->mss)) {
if (TCP_SEQ_GEQ(new_right_edge, pcb->rcv_ann_right_edge + LWIP_MIN((TCP_WND / 2), pcb->mss))) {
/* we can advertise more window */
pcb->rcv_ann_wnd = pcb->rcv_wnd;
return new_right_edge - pcb->rcv_ann_right_edge;