diff options
| author | Florian Westphal <fw@strlen.de> | 2013-09-20 20:32:56 (GMT) |
|---|---|---|
| committer | Jiri Slaby <jslaby@suse.cz> | 2014-03-14 22:01:53 (GMT) |
| commit | c880551355b056f9d23d522fe3f8b4da975d950b (patch) | |
| tree | 2d5fa8029b54956f6f17b10c88970593e945000b /net/iucv | |
| parent | 6c17205526423c520d8a708d4dbcecbdfe7e9f72 (diff) | |
| download | linux-fsl-qoriq-c880551355b056f9d23d522fe3f8b4da975d950b.tar.xz | |
tcp: syncookies: reduce mss table to four values
commit 086293542b991fb88a2e41ae7b4f82ac65a20e1a upstream.
Halve mss table size to make blind cookie guessing more difficult.
This is sad since the tables were already small, but there
is little alternative except perhaps adding more precise mss information
in the tcp timestamp. Timestamps are unfortunately not ubiquitous.
Guessing all possible cookie values still has 8-in 2**32 chance.
Reported-by: Jakob Lell <jakob@jakoblell.com>
Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Diffstat (limited to 'net/iucv')
0 files changed, 0 insertions, 0 deletions