diff options
| author |   Glenn Griffin <ggriffin.kernel@gmail.com> | 2008-02-07 21:49:26 -0800 |
|---|---|---|
| committer |   YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> | 2008-03-04 15:18:21 +0900 |
| commit | c6aefafb7ec620911d46174eed514f9df639e5a4 (patch) | |
| tree | 626e3d47a7bb31f586935c480bed09f342f2fbca /net/ipv4/syncookies.c | |
| parent | [TCP]: lower stack usage in cookie_hash() function (diff) | |
| download | linux-dev-c6aefafb7ec620911d46174eed514f9df639e5a4.tar.xz linux-dev-c6aefafb7ec620911d46174eed514f9df639e5a4.zip | |
[TCP]: Add IPv6 support to TCP SYN cookies
Updated to incorporate Eric's suggestion of using a per cpu buffer
rather than allocating on the stack. Just a two line change, but will
resend in it's entirety.
Signed-off-by: Glenn Griffin <ggriffin.kernel@gmail.com>
Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Diffstat (limited to 'net/ipv4/syncookies.c')
| -rw-r--r-- | net/ipv4/syncookies.c | 7 |
1 files changed, 3 insertions, 4 deletions
diff --git a/net/ipv4/syncookies.c b/net/ipv4/syncookies.c index 177da14f6b14..4704f27f6c0b 100644 --- a/net/ipv4/syncookies.c +++ b/net/ipv4/syncookies.c @@ -10,8 +10,6 @@ * 2 of the License, or (at your option) any later version. * * $Id: syncookies.c,v 1.18 2002/02/01 22:01:04 davem Exp $ - * - * Missing: IPv6 support. */ #include <linux/tcp.h> @@ -23,14 +21,15 @@ extern int sysctl_tcp_syncookies; -static __u32 syncookie_secret[2][16-3+SHA_DIGEST_WORDS]; +__u32 syncookie_secret[2][16-3+SHA_DIGEST_WORDS]; +EXPORT_SYMBOL(syncookie_secret); static __init int init_syncookies(void) { get_random_bytes(syncookie_secret, sizeof(syncookie_secret)); return 0; } -module_init(init_syncookies); +__initcall(init_syncookies); #define COOKIEBITS 24 /* Upper bits store count */ #define COOKIEMASK (((__u32)1 << COOKIEBITS) - 1) |