lk/linux-kernel-test
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

[TCP]: Fix init_cwnd calculations in tcp_select_initial_window()

Browse Source 
Match it up to what RFC2414 really specifies.
Noticed by Rick Jones.

Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
David S. Miller
2005-09-28 16:31:48 -07:00
parent 64233bffbb
commit 6b251858d3
1 changed files with 6 additions and 5 deletions
Download Patch File Download Diff File Expand all files Collapse all files

11
net/ipv4/tcp_output.c
View File

@@ -190,15 +190,16 @@ void tcp_select_initial_window(int __space, __u32 mss,
} }
/* Set initial window to value enough for senders, /* Set initial window to value enough for senders,
* following RFC1414. Senders, not following this RFC, * following RFC2414. Senders, not following this RFC,
* will be satisfied with 2. * will be satisfied with 2.
*/ */
if (mss > (1<<*rcv_wscale)) { if (mss > (1<<*rcv_wscale)) {
int init_cwnd = 4; int init_cwnd;
if (mss > 1460*3)
if (mss > 1460)
init_cwnd = 2; init_cwnd = 2;
else if (mss > 1460) else
init_cwnd = 3; init_cwnd = (mss > 1095) ? 3 : 4;
if (*rcv_wnd > init_cwnd*mss) if (*rcv_wnd > init_cwnd*mss)
*rcv_wnd = init_cwnd*mss; *rcv_wnd = init_cwnd*mss;
} }