diff options
| author | Willy Tarreau <w@1wt.eu> | 2022-05-02 10:46:14 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2022-06-25 11:49:18 +0200 |
| commit | 9b40c2b72362a5ea92128ca7b83307986ac6246f (patch) | |
| tree | 992ae09f6ca4a1e1cae62f37485f29892580a190 /include/linux/root_dev.h | |
| parent | 514cd2859c5017fdc487165b093b328e24afe954 (diff) | |
tcp: drop the hash_32() part from the index calculation
commit e8161345ddbb66e449abde10d2fdce93f867eba9 upstream.
In commit 190cc82489f4 ("tcp: change source port randomizarion at
connect() time"), the table_perturb[] array was introduced and an
index was taken from the port_offset via hash_32(). But it turns
out that hash_32() performs a multiplication while the input here
comes from the output of SipHash in secure_seq, that is well
distributed enough to avoid the need for yet another hash.
Suggested-by: Amit Klein <aksecurity@gmail.com>
Reviewed-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: Willy Tarreau <w@1wt.eu>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'include/linux/root_dev.h')
0 files changed, 0 insertions, 0 deletions