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Fixed bug #21181: On active open, the initial congestion window was calculated based on the configured TCP_MSS, not on the MSS option received with SYN+ACK.

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goldsimon 2007-11-01 15:51:43 +00:00
parent 7a99d73092
commit 853765954e
2 changed files with 10 additions and 3 deletions
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5
CHANGELOG
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@ -435,6 +435,11 @@ HISTORY
++ Bug fixes: ++ Bug fixes:
2007-10-09 Simon Goldschmidt
* tcp_in.c: Fixed bug #21181: On active open, the initial congestion window was
calculated based on the configured TCP_MSS, not on the MSS option received
with SYN+ACK.
2007-10-09 Simon Goldschmidt 2007-10-09 Simon Goldschmidt
* udp.c, inet.c, inet.h: Fixed UDPLite: send: Checksum was always generated too * udp.c, inet.c, inet.h: Fixed UDPLite: send: Checksum was always generated too
short and also was generated wrong if checksum coverage != tot_len; short and also was generated wrong if checksum coverage != tot_len;

8
src/core/tcp_in.c
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@ -517,6 +517,11 @@ tcp_process(struct tcp_pcb *pcb)
pcb->snd_wnd = tcphdr->wnd; pcb->snd_wnd = tcphdr->wnd;
pcb->snd_wl1 = seqno - 1; /* initialise to seqno - 1 to force window update */ pcb->snd_wl1 = seqno - 1; /* initialise to seqno - 1 to force window update */
pcb->state = ESTABLISHED; pcb->state = ESTABLISHED;
/* Parse any options in the SYNACK before using pcb->mss since that
* can be changed by the received options! */
tcp_parseopt(pcb);
pcb->cwnd = ((pcb->cwnd == 1) ? (pcb->mss * 2) : pcb->mss); pcb->cwnd = ((pcb->cwnd == 1) ? (pcb->mss * 2) : pcb->mss);
LWIP_ASSERT("pcb->snd_queuelen > 0", (pcb->snd_queuelen > 0)); LWIP_ASSERT("pcb->snd_queuelen > 0", (pcb->snd_queuelen > 0));
--pcb->snd_queuelen; --pcb->snd_queuelen;
@ -533,9 +538,6 @@ tcp_process(struct tcp_pcb *pcb)
tcp_seg_free(rseg); tcp_seg_free(rseg);
/* Parse any options in the SYNACK. */
tcp_parseopt(pcb);
/* Call the user specified function to call when sucessfully /* Call the user specified function to call when sucessfully
* connected. */ * connected. */
TCP_EVENT_CONNECTED(pcb, ERR_OK, err); TCP_EVENT_CONNECTED(pcb, ERR_OK, err);