1) does not penalize working stacks, and does not even penalize
broken Solaris machines when the FIN makes it there the first
time
2) is on by default
The debugging printk is there so I can know if the code is actually
working, of course it will be gone in the final version. When people
test this to machines where they know the problem happened, please
include in your report whether 'dmesg' showed my debugging message in
the kernel logs.
Thanks.
--- net/ipv4/tcp_output.c.~1~ Mon Feb 22 10:17:22 1999
+++ net/ipv4/tcp_output.c Fri Feb 26 12:38:47 1999
@@ -580,6 +580,18 @@
if(tp->af_specific->rebuild_header(sk))
return 1; /* Routing failure or similar. */
+ /* Solaris sucks. */
+ if(skb->len > 0 &&
+ (TCP_SKB_CB(skb)->flags & TCPCB_FLAG_FIN) &&
+ tp->snd_una == (TCP_SKB_CB(skb)->end_seq - 1)) {
+#if 1
+ printk("TCP: Doing Solaris hack for [%p:%08x:%04x:%08x]\n",
+ skb, sk->daddr, sk->dport, tp->snd_una);
+#endif
+ skb_trim(skb, 0);
+ skb->csum = 0;
+ }
+
/* Ok, we're gonna send it out, update state. */
TCP_SKB_CB(skb)->sacked |= TCPCB_SACKED_RETRANS;
tp->retrans_out++;
@@ -592,6 +604,7 @@
skb = skb_copy(skb, GFP_ATOMIC);
else
skb = skb_clone(skb, GFP_ATOMIC);
+
tcp_transmit_skb(sk, skb);
/* Update global TCP statistics and return success. */
-
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