From da5c78c82629a167794436e4306b4cf1faddea90 Mon Sep 17 00:00:00 2001 From: William Allen Simpson Date: Wed, 2 Dec 2009 18:12:09 +0000 Subject: TCPCT part 1b: generate Responder Cookie secret Define (missing) hash message size for SHA1. Define hashing size constants specific to TCP cookies. Add new function: tcp_cookie_generator(). Maintain global secret values for tcp_cookie_generator(). This is a significantly revised implementation of earlier (15-year-old) Photuris [RFC-2522] code for the KA9Q cooperative multitasking platform. Linux RCU technique appears to be well-suited to this application, though neither of the circular queue items are freed. These functions will also be used in subsequent patches that implement additional features. Signed-off-by: William.Allen.Simpson@gmail.com Acked-by: Eric Dumazet Signed-off-by: David S. Miller --- include/linux/cryptohash.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include/linux/cryptohash.h') diff --git a/include/linux/cryptohash.h b/include/linux/cryptohash.h index c118b2ad9807..ec78a4bbe1d5 100644 --- a/include/linux/cryptohash.h +++ b/include/linux/cryptohash.h @@ -2,6 +2,7 @@ #define __CRYPTOHASH_H #define SHA_DIGEST_WORDS 5 +#define SHA_MESSAGE_BYTES (512 /*bits*/ / 8) #define SHA_WORKSPACE_WORDS 80 void sha_init(__u32 *buf); -- cgit v1.2.3